• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    AUTOMATIC ALIGNING PIVOTING CHUCK SET. A mandrel assembly (50) for a can body (1) in a can decorating machine is provided. The mandrel assembly (50) includes a bearing assembly (56) that creates a virtual pivot point (100) whereby the mandrel (54) can pivot with respect to the support mandrel shaft (52). To allow the mandrel (54) to pivot in relation to the mandrel shaft (52), the bearing assembly (56) is located in one location and is the only point of contact between the mandrel (54) and the mandrel shaft (52).
    公开号:BR112012031476B1
    申请号:R112012031476-9
    申请日:2011-04-18
    公开日:2020-11-17
    发明作者:Kart Scott Fleischer
    申请人:Stolle Machiney Company, Llc；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION Field of the Invention
    The exposed concept generally refers to a mandrel set coupled to a mandrel holder for decorating a container and, more specifically, to a mandrel set in which the mandrel is automatically aligned with the surface of the can decorating device. . Background Information
    Decorations, that is, any indexes are typically applied to a can by a can decorating device that uses a rotating "base piece". The basic piece, or, more typically, a plurality of basic pieces, are arranged on the circumference of a large diameter rotating disc, i.e., a large diameter in relation to the can body to which the can decoration is applied. One or more ink stations apply ink in a desired pattern to the base parts, before the base parts contact the cans. The cans can be rotated at a speed corresponding to the basic part and then brought into contact with the basic part. The can is in contact with the basic part by substantially a full rotation of the can. During the period in which the can and the base piece contact each other, the paint is transferred from the base piece to the can. The can can then be subjected to other treatments, for example, varnish, drying, etc. to ensure that the ink does not stain.
    The device used to support and handle the cans during the can decoration procedure is a mandrel turret turret. Generally, the mandrel turret turret includes a disc that has a geometric axis of rotation. The axis of rotation of the mandrel turret turret disk is substantially parallel to the axis of rotation of the base part wheel. A plurality of elongated mandrel assemblies are coupled to the mandrel turret turret disc. Each longitudinal axis of the mandrel assembly is generally parallel to the axis of rotation of the base part wheel and the axis of rotation of the mandrel turret turret disc; however, if the mandrels need to have a certain amount of radial "convergence" as described below, the mandrel turret-turret turret disc rotation axis can be tilted toward the basic part wheel rotation axis.
    As mentioned above, the can must be rotating as it contacts the basic part with paint. This rotation is performed by the mandrel assembly on which the can is mounted. Initially, it is noted that, at this point in the manufacture of the can, the can is incomplete, that is, the can does not have a type. Thus, the can is essentially a cup having a generally flat base with a hanging sidewall. The can is disposed on the distal end of the mandrel assembly and held in place by a vacuum. That is, the mandrel assembly is structured to suck vacuum at the distal end, whereby a can is held in place.
    To rotate the can, the mandrel assembly includes a mandrel and a mandrel shaft. Both the mandrel and the mandrel shaft are generally cylindrical, but have different radius portions. The mandrel shaft includes a passage through which a vacuum can be drawn. One end of the mandrel shaft, the proximal end, is coupled to the mandrel turret turret disc. Thus, the mandrel shaft is in balance from the mandrel turret turret disc. Preferably, the mandrel axis does not rotate in relation to the mandrel turret turret disc (but rotates around the mandrel turret turret turret disc, as the mandrel turret turret disc rotates).
    The mandrel is usually a cylindrical shell that is arranged on the mandrel shaft. The mandrel shaft is usually open at both ends. The mandrel is structured to rotate concentrically around the mandrel axis. A bearing assembly allows the mandrel to rotate with respect to the mandrel shaft. A rotation device, typically a strapping system attached to the canister device base piece wheel to one or more mandrels, is structured to bring each mandrel to the appropriate rotation speed, just before the can contacts the base piece with paint. The rotating device is detached from the mandrel when or just before the can contacts the basic part with paint. Additionally, it is noted that the mandrel must be at a specific distance from the base piece, in order to create an appropriate pressure between the can and the base piece with paint, which causes the paint to transfer without distortion of the base piece, from that causing a distorted image or causing the mandrel and therefore the can to slow its rotation speed, which also causes a distorted image in the can.
    In this configuration, the various components of the can decoration device and the mandrel turret turret disk must be precisely aligned and structured to rotate at specific speeds to ensure that the can decoration is applied to the cans without stains, smudges or distortions otherwise from the indices. Therefore, the elements of the mandrel turret turret disk are traditionally very rigid, in order to control their position relative to other elements.
    Yet, even with very rigid components, a cause of misalignment is the fact that the chuck assembly is in overhang. In this configuration, it is known that the distal end of the mandrel assembly deflects in response to the pressure applied to it by the basic part at the moment of applying the image to the can. One method of compensating for this deflection is to construct the mandrel assembly with a selected radial offset, or a "convergence" of the mandrel assembly. That is, the mandrel turret turret disc is tilted radially towards the base part wheel. This causes the distal end of the mandrel assembly to be located closer to the axis of rotation of the basic part wheel than the proximal end of the mandrel assembly. Thus, when the basic part contacts the can (in the mandrel), the orientation created by the basic part causes the mandrel assembly to deflect inward by a slight amount, whereby the longitudinal geometric axis of the mandrel assembly is substantially parallel to the geometric axis of rotation of the basic part wheel.
    It is noted that, as part of the rigid construction of a mandrel assembly, and as shown in figure 1, there are typically two sets of bearings 2, 3 arranged between mandrel 4 and mandrel shaft 5. Usually, there is a bearing assembly ball bearing 2 disposed adjacent to the distal end of the mandrel assembly and a needle bearing assembly 3 disposed adjacent to the proximal end of the mandrel assembly. By supporting the mandrel on the mandrel axis in two locations along the longitudinal geometric axis of the mandrel assembly, the mandrel, although rotating, is in a fixed orientation with respect to the mandrel axis.
    Thus, in order to obtain a consistent and good quality of can decoration of all cans, each mandrel set must be significantly parallel to the geometric axis of rotation of the basic part wheel. Any condition of parallel output from the stop of a mandrel set can result in every can in that mandrel set not being fully printed. When this happens, it is necessary to determine which part in the related mandrel set is out of specification and to replace it. This can result in a significant amount of downtime. Sometimes, when an operator detects such misalignment, instead of performing proper maintenance, the operator will simply increase the pressure of the can decorating device, in order to arrive at the appropriately printed mandrel assembly. However, this results in higher loading than required for the remaining mandrel assemblies and causes a reduced service life of the mandrel turret turret disc assembly in general. SUMMARY OF THE INVENTION
    The claimed and exposed concept overcomes the problem of misaligned mandrel assemblies by allowing the mandrel to "float" on the mandrel shaft. This is accomplished by providing a mandrel assembly, in which the bearing assembly creates a virtual pivot point by which the mandrel can pivot in relation to the mandrel shaft. That is, while in the traditional method of construction a mandrel turret turret disc set and, more specifically, a mandrel set require a firm but rotating fit between components at two support locations between the mandrel and the spindle. mandrel, the exposed mandrel assembly allows a bearing assembly having a single bearing unit, or two very close between the mandrel and the mandrel shaft. Furthermore, the bearing unit (s) is (are) dimensioned (s) in order to allow the mandrel to pivot in relation to the mandrel shaft. This intentional ability of the mandrel to move relative to the mandrel axis is defined here as "float".
    In operation, the fluctuation of the mandrel in relation to the mandrel axis allows the mandrel to align with the basic part. That is, even if the mandrel axis was misaligned, that is, not substantially parallel to the geometric axis of rotation of the basic part wheel, the orientation created by the basic part contacting the mandrel causes the mandrel to pivot in relation to the mandrel axis. , so that the mandrel becomes substantially parallel to the axis of rotation of the basic part wheel. This configuration allows the construction of mandrel assemblies and mandrel turret turret disks with less accuracy specifications and allows the mandrels to be automatically aligned with the axis of rotation of the base part wheel. BRIEF DESCRIPTION OF THE DRAWINGS
    A full understanding of the exposed concept can be obtained from the following description of the preferred modalities, when read in conjunction with the associated drawings, in which: Figure 1 is a cross-sectional view of a prior art mandrel set.
    Figure 2 is a side view of a can decorating machine.
    Figure 3 is a cross-sectional view of a pivoting mandrel assembly.
    Figure 4 is a cross-sectional view of a ball bearing unit. DESCRIPTION OF THE PREFERRED EMBODIMENTS
    As used here, "significantly parallel", that is, when comparing two geometry axes of rotation, means that the two geometry axes are around 0, 007 degrees from each other and / or 0.001 degrees per inch (25, 4 mm) of mandrel length.
    As used here, "substantially parallel", that is, when comparing two geometrical axes of rotation, means that the two geometrical axes are around 0, 0035 degrees from each other and / or 0, 005 degrees per inch ( Chuck length (25.4 mm).
    As used here, a "virtual pivot" is a point around which a physical element pivots, but where no portion of that element exists. The "virtual pivot" is created by a plurality of physical pivot points that are spaced from the "virtual pivot". In addition, a "virtual pivot" is intentionally created and does not exist inherently, due to manufacturing tolerances. That is, for example, in a ball bearing unit having an inner bearing and an outer bearing with ball bearings arranged between them, the manufacturing tolerances allow for a radial clearance, that is, the passage defined by the two bearings is slightly greater than the diameter of the ball bearings. Although such a tolerance can allow one bearing to pivot, or swing, in relation to the other bearing, a slight and unintended amount of pivot like this does not establish a "virtual pivot point".
    As used here, "coupled" means a connection between two or more elements, whether direct or indirect, as long as a connection occurs.
    As used here, "fixedly coupled" or "fixed" means that two components are coupled in order to move as one, while maintaining a constant orientation with respect to each other.
    As used here, "match" indicates that two structural components with complementary shapes are sized to fit each other, that is, to contact at least partially each other, with a minimal amount of friction. Thus, an opening which corresponds to a member has a substantially similar shape and is dimensioned slightly larger than the member, so that the member can pass through the opening with a minimal amount of friction.
    As used here, a "can body" is a generally cylindrical body that has a closed end. The periphery of the closed end is usually arranged in a plane, but the medial portion of the closed end can be arched.
    A can decoration machine 10 for a can body 1 is shown in figure 2. The can decoration machine 10 includes a can body entrance feed 12, a mandrel turret turret assembly 14, a plurality of ink stations 16, a base piece wheel 18 having a plurality of base pieces 20 arranged around the outer circumference, and a can transfer set 22. The chuck turret turret set 14 includes a chuck holder 30 , which, as shown, is a disk 32 having a geometric axis of rotation 34. It is noted that some chuck holders 30 include multiple plates that slide radially in relation to each other, thereby creating a disk assembly with a radius variable. This configuration is not relevant to the present invention and is not shown, but the concept shown here can operate with a chuck holder 30 like this. Therefore, as used here, a "chuck holder" is not limited to a simple disc 32.
    A plurality of chuck assemblies 50, discussed in detail below, are coupled to the chuck holder 30. The projected parts 50 are generally elongated and coupled at one end to the chuck holder 30. Each chuck assembly 50 and, more specifically, each spindle axis 52 extend substantially parallel to the spindle holder rotation axis 34. The base piece wheel 18 is also structured to rotate on a spindle axis 19 that extends substantially parallel to the spindle rotation axis mandrel 34. The base pieces 20 are arranged on the outer surface of the base piece wheel 18. Thus, the base pieces 20 are positioned to fit sideways or radially in the projected parts 50. As is known, each ink station 16 applies an ink to the basic parts 20, typically through an intermediate plate cylinder 36. The ink stations 16 are generally arranged on the side of the geometric axis of rotation of the rod the basic part 19 opposite the chuck holder 30. A pre-rotating assembly 38 (shown schematically), which typically comprises a plurality of straps 40 and guide wheels 42, is operatively coupled to the basic part wheel 18 and has a strap 40 structured to fit a mandrel 54 (described below) and rotate mandrel 54.
    In operation, a can body 1 is disposed on the free end of a mandrel assembly 50 in the can body inlet feed 12. As the mandrel holder 30 rotates, the mandrel assembly 50 with the can body 1 is moved towards the base piece wheel 18. Before the base piece 20 engages, the pre-turning set belt 40 fits into the mandrel 54 and causes the mandrel 54 to rotate around the longitudinal axis of the mandrel assembly . As the chuck holder 30 continues to rotate, the chuck assembly 50 with the can body 1 is moved to fit with a base piece with paint 20, while rotating at a speed so that the can body 1 rotates once during the socket with the base piece 20. This causes the paint on the base piece 20 to transfer to the can body 1. The can transfer set 22 then removes the can body 1 from the mandrel set 50 and transfers the body can 1 for subsequent processing stations, such as, but not limited to, a curing oven 24.
    As shown in figure 3, a mandrel assembly 50 includes an elongated mandrel shaft 52, an elongated and hollow mandrel 54 and a bearing assembly 56. The elongated mandrel shaft 52 has a longitudinal geometric axis 60, a proximal end 62 and a distal end 64. The mandrel shaft 52 can define one or more passages 66 that are in fluid communication with a vacuum assembly or a pressurized air supply (none shown). As is known, a vacuum aspirated through the mandrel assembly 50 can be used to hold the can body 1 in place during the can decorating operation and pressurized air can be used to remove the can body 1 from the mandrel 54 The proximal end of the spindle shaft 62 is structured to be coupled to the spindle holder 30. The longitudinal spindle axis of spindle 60 extends substantially parallel to the spindle axis of rotation 34. Also, the spindle axis 52 has a bearing assembly seat 68, disposed adjacent to the distal end of the mandrel shaft 64, which has a generally smooth outer surface and is structured to fit the bearing assembly 56. The mandrel shaft 52 also has a portion medial 70 disposed between the proximal end of the mandrel shaft 62 and the bearing assembly seat 68. The middle portion of the mandrel shaft 70 has a first radius that defines an outer surface 72. Also, the mandrel shaft 52 has a flange 74 which, when mandrel 54 is arranged on mandrel shaft 52, as described below, is disposed adjacent to the proximal end of mandrel shaft 62 (discussed below). As shown, mandrel 54 has a length that is about the same as that of mandrel shaft 52. However, this is not required and mandrel 54 may be shorter. As described below, chuck shaft flange 74 is structured to block access to a space 170 between chuck shaft 52 and chuck 54. Therefore, chuck shaft flange 74 is positioned on chuck shaft 52 of according to the length of the chuck 54.
    Chuck 54, as mentioned, is an elongated hollow body that has a longitudinal geometric axis 55. Chuck 54 is structured to be rotatably arranged around chuck axis 52. Chuck 54 is still structured to rotate concentricly. around the longitudinal axis of the mandrel axis 60. That is, the mandrel 54 rotates on and around the mandrel axis 52. The mandrel 54 has a proximal end 80, a distal end 82, a bearing assembly seat 84 adjacent the distal mandrel end 82, and a middle portion 86 disposed between the proximal end of the mandrel 80 and the mandrel bearing assembly seat 84. The medial mandrel portion 86 has a second radius defining the inner mandrel surface 88 Also, on the outer surface of the mandrel 90, there is a belt surface 92. The belt surface 92 is structured to be temporarily fitted by the pre-rotating assembly belt 40. That is, when the mandrel 54 is moved adjacent to the basic part wheel 18, as described above, the pre-pivot set belt 40 fits on the belt surface 92. As the pre-pivot set belt 40 moves, chuck 54 rotates about its geometric axis longitudinal 55.
    Bearing assembly 56 is structured to be arranged between mandrel 54 and mandrel shaft 52. When assembled, as described, bearing assembly 56 rotatably couples mandrel 54 to mandrel shaft 52. Furthermore, the bearing assembly 56 defines a virtual pivot point 100 disposed substantially on the longitudinal geometric axis of the mandrel axis 60. The virtual pivot point 100 is configured to allow the mandrel 54 to pivot in relation to the mandrel axis 52. That is, , due to the virtual pivot point 100, the longitudinal spindle axis 55 can pivot in relation to the longitudinal spindle axis 60. More specifically, the virtual pivot point 100 is structured to allow the longitudinal spindle axis 55 rotate between 0.00 and +/- 0.20 degrees, or, more preferably, around +/- 0.18 degrees, in relation to the longitudinal axis of mandrel axis 60.
    In one embodiment, bearing assembly 56 includes at least one floating ball bearing unit 110. Ball bearing unit 110 includes an outer bearing 112, an inner bearing 114, and a plurality of ball bearings 116. The bearing outer 112 is a log-shaped body that has an outer surface 120 and an inner surface 122. The inner bearing surface 122 includes a bearing bearing 123 which is a groove 124. The outer bearing groove 124 is shaped of arcuate cross section having a proximal edge 126 and a distal edge 128. The curvature of the arcuate outer bearing groove 124 substantially corresponds to the curvature or radius of the ball bearings 116. The outer bearing surface 120 is structured to be coupled to the chuck 54. The inner bearing 114 is also a log-shaped body that has an outer surface 130 and an inner surface 132. The outer bearing surface int The end 130 includes a bearing bearing 134 which is a groove 136. The inner bearing groove 136 has an arcuate cross-sectional shape that has a proximal edge 138 and a distal edge 140. The curvature of the arched inner bearing groove 136 substantially corresponds to the curvature or radius of the ball bearings 116. The inner bearing surface 132 is structured to be coupled to the mandrel shaft 52. The outer bearing surface 130 has a smaller radius than the inner bearing surface 122 .
    When assembled, the ball bearing unit 110 includes the inner bearing 114 disposed on the outer bearing 112 and with each center, i.e., the center of each log, substantially aligned. In this configuration, there is a space 150 between the inner bearing surface 130 and the inner bearing surface 122. Furthermore, the outer bearing groove 124 and the inner bearing groove 136 form a passage 152 and the ball bearings 116 are arranged there. The ball bearing unit passage 152 is oversized, as shown in figure 4, which is exaggerated for visibility. That is, the ball bearing unit passage 152 intentionally has a radial spacing greater than the diameter of the ball bearings 116. Thus, the outer bearing 112 "floats" in relation to the inner bearing 114 because of a limited number, that is, less than the total, of the ball bearings 116 effectively fit (while supporting more than an insignificant load) on the outer bearing 112 and the inner bearing 114.
    Furthermore, this configuration causes the ball bearing unit 110 to form a virtual pivot point 100. That is, due to the fact that the passage 152 is oversized, the outer bearing 112 and the inner bearing 114 can pivot in relation to each other around virtual pivot point 100. Virtual pivot point 100 is substantially arranged in the center of outer bearing 112 and inner bearing 114. In this case, "substantially centered" means that virtual pivot point 100 is n or insignificantly spaced from the center of bearings 112, 114. It is noted that the center of bearings 112, 114 is arranged along the longitudinal axis of mandrel axis 60. Thus, virtual pivot point 100 is substantially arranged in the longitudinal axis of mandrel axis 60.
    Although the above concept applies to ball bearing units 110 of any size, the following dimensions represent a modality for a ball bearing unit 110 having ball bearings 116 with around 0.2 66 inches (6.7 mm) in diameter. To allow bearings 112, 114 to pivot between -0.20 and +0.20 degrees relative to each other, the ball bearing unit passage 152 has a radial clearance between about 0.0002 inches (5 , 08 pm) and 0.0008 inches (20.32 pm). In such a configuration, bearings 112, 114 can also move radially and axially with respect to each other, thereby allowing bearings 112, 114 to pivot with respect to each other.
    The bearing assembly 56 is the only coupling between the mandrel shaft 52 and the mandrel 54. Furthermore, the bearing assembly 56 is located in a discrete location along the longitudinal geometric axis of the mandrel shaft 60. That is, differently of the previous mandrel assemblies, which have bearings and / or other supports arranged in two or more locations along the geometric axis of rotation of the mandrel assembly, the exposed concept provides a bearing assembly 56 arranged in a single location. Due to the fact that the bearing assembly 56 is arranged in a single location, and due to the fact that the bearing assembly 56 creates a virtual pivot point 100, the mandrel 54 can pivot in relation to the mandrel shaft 52.
    That is, each chuck assembly 50 is assembled as follows. Each spindle shaft 52 is mounted, directly or indirectly, to the spindle holder 30. Each spindle shaft longitudinal axis 60 extends substantially parallel to the spindle axis of rotation 34. The inner bearing of balls 114 are arranged on the seat of the mandrel shaft bearing assembly 68. The inner bearing of the ball bearing assembly 114 is coupled to and preferably fixed to the mandrel shaft 52. The mandrel 54 is disposed on the mandrel shaft 52 with the outer bearing of the ball bearing unit 112 arranged in the seat of the mandrel bearing assembly 84. The outer bearing of the ball bearing unit 112 is coupled to and preferably fixed to the mandrel 54. In this configuration, the mandrel 54 is rotatably arranged on the mandrel shaft 52 and structured to rotate concentrically around the longitudinal axis of mandrel shaft 60.
    Furthermore, due to the fact that the bearing assembly 5 6 is the only coupling between the mandrel shaft 52 and the mandrel 54 and due to the fact that the bearing assembly 56 forms a virtual pivot point 100, the mandrel 54 can pivot with respect to the spindle axis 52, that is, the longitudinal spindle axis 55 can pivot in relation to the longitudinal spindle axis 60. Preferably, the longitudinal spindle axis 55 can pivot between 0.0 and 0, 20 degrees and, more preferably, around 0.18 degrees in relation to the longitudinal geometric axis of mandrel axis 60. Also, the bearing assembly 56 and, therefore, the virtual pivot point 100 are located closer to the distal end spindle shaft 64 than the proximal end of spindle shaft 62. Also, due to the fact that bearing assembly 56 is located in a discrete location, bearing assembly 56 does not include a bearing, ball bearing or any other another bearing more closer to the proximal end of the spindle shaft 62 than to the distal end of the spindle shaft 64. Thus, the spindle 54 is essentially supported in a single plane that extends generally perpendicular to the longitudinal spindle axis of the spindle 60.
    In addition, the bearing assembly 56 is preferably closer to the distal end of the mandrel shaft 64 than to the proximal end of the mandrel shaft 62. That is, it is preferable not to have the can body 1 supporting a cantilevered end of the mandrel 54. with respect to mandrel shaft 52. Thus, bearing assembly 56 is disposed closer to distal mandrel end 82 than to proximal mandrel end 80. Furthermore, the exposed concept requires that mandrel 54 is free to pivot in around the virtual pivot point 100, so there cannot be a bearing, or any other support or coupling structure, spaced from the bearing assembly 56. That is, a structure supported in more than two points cannot pivot around one of the points. Bearing assembly 56, however, can include two ball bearing units 110 which are arranged adjacent to each other. In this configuration, the oversized passages 152 in the ball bearing units 110 are structured to create a single virtual pivot point 100.
    Also, in this configuration, and due to the fact that the first radius of the medial portion of the mandrel shaft 70 is smaller than the second radius of the medial portion of mandrel 86, there is a space 170 between the medial portion of the mandrel shaft 70 and the medial portion of mandrel 86, as shown in figure 3. It is desirable to limit the amount of dust and other debris that passes into this space 170 and what subsequently can damage the bearing assembly 56. Therefore, the mandrel shaft flange 74 has a sufficient radius to essentially close the proximal end 80 of the mandrel assembly 50. That is, a space between the mandrel shaft flange 74 and the inner mandrel surface 88 is less than around 0.030 inches (7 62 pm). It is noted that the mandrel shaft flange 74 does not touch the inner surface of mandrel 88. Thus, mandrel 54 is not supported by mandrel shaft flange 74.
    In this configuration, the mandrel 54 and, more specifically, the longitudinal axis of mandrel 55 can pivot between 0.00 and 0.20 degrees and, more preferably, around 0.18 degrees, in relation to the longitudinal axis of axis of mandrel 60. Thus, during a can decoration operation, when the basic part 20 fits into the can body 1, the mandrel 54 will pivot around the virtual pivot point 100, up to the geometric axis of rotation of the can body 1, that is, the longitudinal axis of mandrel 55, and the axis of rotation of basepiece 20, i.e., the axis of rotation of basepiece wheel 19 are significantly parallel. That is, the orientation created by the pressure of the base part 20 engaging a can body 1 automatically moves the chuck 54 to significant alignment with the base axis wheel rotation axis 19 (as well as the door rotation axis -mandrill 34). Thus, in this configuration, the mandrel shaft 52 may not need to have a pre-established convergence to counterbalance the orientation created by the pressure of the base part 20 fitting into a can body 1.
    Although specific modalities of the exposed concept have been described in detail, it will be appreciated by those skilled in the art that various modifications and alternatives in those details could be developed in the light of the general teachings of the exhibition. Therefore, the 5 arrangements in particular exposed may have the meaning of being illustrative only and not limiting to the scope of the exposed concept, which is to receive the full extension of the attached claims and any and all equivalent objects thereof.
    权利要求:
    Claims (18)
    [0001]
    1. Mandrel assembly (50) comprising: an elongated mandrel axis (52) having a longitudinal geometric axis (60), a proximal end (62) and a distal end (64); the mandrel assembly (50) is characterized by the fact that it still comprises: a hollow elongated mandrel (54) structured to be rotatably arranged around said mandrel axis (52) and structured to rotate concentrically around said geometric axis longitudinal axis of mandrel (55); a bearing assembly (56) disposed in a discrete location between said mandrel (54) and said mandrel shaft (52) f whereby said bearing assembly (56) rotatably couples said mandrel (54 ) to said mandrel shaft (52); said mandrel shaft and said mandrel are coupled only by said bearing assembly; and said bearing assembly (56) defining a virtual pivot point (100) substantially disposed on said longitudinal axis of mandrel axis (55).
    [0002]
    2. Mandrel assembly (50) according to Claim 1, characterized by the fact that the longitudinal axis of mandrel (55) can pivot between 0.00 and 0.20 degrees in relation to said longitudinal axis of axis mandrel (60) at said virtual pivot point (100).
    [0003]
    3. Mandrel assembly (50) according to Claim 2, characterized by the fact that the longitudinal axis of mandrel (55) can pivot 0.18 degrees in relation to said longitudinal axis of mandrel axis (60) in said virtual pivot point (100).
    [0004]
    Chuck assembly (50) according to Claim 1, characterized by the fact that said virtual pivot point (100) is located closer to said distal end of the chuck axis (64) than said proximal end of mandrel shaft (62).
    [0005]
    5. Mandrel assembly (50) according to Claim 4, characterized by the fact that said bearing assembly (56) does not include a bearing closer to said mandrel shaft proximal end (62) than to said end away from the mandrel shaft (64).
    [0006]
    Mandrel assembly (50) according to Claim 1, characterized by the fact that said bearing assembly (56) includes at least one ball bearing unit (110).
    [0007]
    Mandrel assembly (50) according to Claim 6, characterized by the fact that said bearing assembly (56) includes two ball bearing units (110).
    [0008]
    Chuck assembly (50) according to Claim 7, characterized by the fact that the two ball bearing units (110) are arranged adjacent to each other.
    [0009]
    Chuck assembly (50) according to Claim 1, characterized by the fact that: said chuck axis (52) has a bearing assembly seat (68), disposed adjacent to the distal end of the chuck axis ( 64), and a medial portion (70) arranged between said mandrel shaft proximal end (62) and said bearing assembly seat (68), said mandrel shaft medial portion (70) having a first radius defining an external surface (72); said mandrel (54) has a proximal end (80), a distal end (82), a bearing assembly seat (68) adjacent to said distal mandrel end, and a medial portion (86) disposed between said end proximal mandrel (80) and said mandrel bearing assembly seat (84), said medial mandrel portion (86) having a second radius defining an internal surface (88); the first radius of said mandrel axis (52) being smaller than the second radius of said mandrel (54), whereby a space (170) exists between said medial portion of mandrel axis (70) and said medial portion of mandrel (86); and said mandrel axis (52) having a flange (74) which, when said mandrel (54) is disposed on said mandrel axis (52), is disposed adjacent to said proximal end of mandrel axis (62), said mandrel shaft flange (74) having an external radius that is less than, but substantially equal to the second radius of said mandrel (54), whereby there is a gap between said mandrel shaft flange (74) ) and said internal mandrel surface (88).
    [0010]
    10. Chuck turret turret assembly (14) comprising: a chuck holder (30) structured to rotate around a geometric axis (34); a plurality of elongated mandrel assemblies (50), each mandrel assembly (50), as defined in claim 1, having an elongated mandrel shaft (52), a hollow elongated mandrel (54) and a bearing assembly (56) ; the mandrel turret turret assembly (14) is characterized by the fact that: each said mandrel axis (52) having a longitudinal geometric axis (60), a proximal end (62) and a distal end (64); each said mandrel shaft proximal end (62) coupled to said mandrel holder (30), each said mandrel axis (52) extending substantially parallel to said rotation mandrel axis (34); each said mandrel (54) structured to be rotatably arranged around a mandrel axis (52) and to rotate about said longitudinal axis of mandrel axis (60); each said bearing assembly (56) disposed in a discrete location between a mandrel (54) and a mandrel shaft (52), whereby each said bearing assembly (56) rotatably couples a mandrel (54) to a mandrel shaft (52); said mandrel shaft and said mandrel are coupled only by said bearing assembly; and each said bearing assembly (56) defining a virtual pivot point (100) substantially disposed on said longitudinal mandrel axis geometric axis (60).
    [0011]
    Chuck assembly (50) according to Claim 10, characterized by the fact that the longitudinal axis of the mandrel (55) can pivot between 0.00 and 0.20 degrees in relation to said longitudinal geometric axis of the mandrel axis (55) at said virtual pivot point (100).
    [0012]
    Chuck assembly (50) according to Claim 11, characterized by the fact that the longitudinal axis of chuck (55) can pivot at 0.18 degrees with respect to said longitudinal axis of chuck axis (55) in said virtual pivot point (100).
    [0013]
    Chuck assembly (50) according to Claim 10, characterized by the fact that said virtual pivot point (100) is located closer to said distal end of the chuck axis (64) than to said proximal end of mandrel shaft (62).
    [0014]
    Chuck assembly (50) according to Claim 13, characterized in that said bearing assembly (56) does not include a bearing closer to said mandrel shaft proximal end (62) than to said end away from the mandrel shaft (64).
    [0015]
    Chuck assembly (50) according to Claim 10, characterized in that said bearing assembly (56) includes at least one ball bearing unit (110).
    [0016]
    16. Mandrel assembly (50) according to Claim 15, characterized by the fact that said bearing assembly (56) includes two ball bearing units (110).
    [0017]
    17. Chuck assembly (50) according to Claim 16, characterized by the fact that the two ball bearing units (110) are arranged adjacent to each other.
    [0018]
    18. Mandrel assembly (50) according to Claim 10, characterized in that: said mandrel axis (52) has a medial portion disposed between said proximal end of mandrel axis (62) and said assembly of bearing (56), said medial portion of mandrel shaft (70) having a first radius that defines an external surface (72); said mandrel (54) has a proximal end (80), a distal end (82), a bearing assembly seat adjacent to said distal mandrel end, and a medial portion (86) disposed between said proximal end of mandrel (80) and said mandrel bearing assembly seat (84), said medial mandrel portion (86) having a second radius defining an internal surface (88); the first radius of said mandrel axis (52) being smaller than the second radius of said mandrel (54), whereby a space (170) exists between said medial portion of mandrel axis (70) and said medial portion of mandrel (86); and said mandrel axis (52) having a flange (74) which, when said mandrel (54) is disposed on said mandrel axis (52), is disposed adjacent to said proximal end of mandrel axis (62), said mandrel shaft flange (74) having an external radius that is less than, but substantially equal to the second radius of said mandrel (54), whereby there is a gap between said mandrel shaft flange (74) ) and said internal mandrel surface (88).
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    同族专利:
    公开号 | 公开日
    BR112012031476A2|2016-11-01|
    US20110304085A1|2011-12-15|
    CN104786638B|2018-01-19|
    WO2011156052A1|2011-12-15|
    JP6055854B2|2016-12-27|
    JP5701980B2|2015-04-15|
    JP2013533135A|2013-08-22|
    EP2580058A4|2016-01-20|
    EP2580058A1|2013-04-17|
    JP2016221969A|2016-12-28|
    CN103025529B|2015-03-11|
    JP2015131490A|2015-07-23|
    EP2580058B1|2019-05-22|
    CN103025529A|2013-04-03|
    US8596624B2|2013-12-03|
    CN104786638A|2015-07-22|
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    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-09-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-05-26| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-09-01| B09A| Decision: intention to grant|
    2020-11-17| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 18/04/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/797,074|US8596624B2|2010-06-09|2010-06-09|Self-aligning pivotable mandrel assembly|
    US12/797,074|2010-06-09|
    PCT/US2011/032818|WO2011156052A1|2010-06-09|2011-04-18|Self-aligning pivotable mandrel assembly|
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