A tin plate unwinding device and a damping unwinding component therein

Abstract

The present invention discloses a tin plate unwinding device and a damping unwinding assembly therein. The damping unwinding assembly includes: a base, a fixed vertical plate provided on the base, and a rotating core shaft passed through the fixed vertical plate by means of a bearing. A limiting plate, a clamping spring piece sleeve and a locking cap are provided at one end of the rotating core shaft. The other end of the rotating core shaft passes out of the fixed vertical plate and is provided with a damping disc. A damping fixing block is provided on the fixed vertical plate above the damping disc, and a damping adjusting block is provided on the damping fixing block below the damping disc; the damping adjusting block is arranged on the damping fixing block through a pair of damping adjusting bolts and corresponding damping adjusting springs. The damping unwinding assembly of the present invention is mainly used in a tin plate unwinding device. By arranging the damping unwinding assembly on the X-direction adjusting tube, on the premise of ensuring the reliable fixing of the tin plate and the orderly unwinding of the tin wire, the rapid connection of the tin wire without interruption is realized.

Description

Technical Field

[0001] The present invention relates to a pay-off assembly with damping and a tin plate pay-off device equipped with the pay-off assembly. Background Art

[0002] The die bonder is a key device in the semiconductor back-end packaging process, and it is an automated production device that uses vision guidance technology to automatically pick up chips from a wafer and then bond them to a lead frame. As is well known, tin wire is usually wound on an I-shaped spool and appears in the form of a tin plate. At present, the structure of traditional tin plate pay-off devices is relatively simple, usually only provided with a pay-off shaft (also known as a rotating mandrel), and the tin plate is directly hung on the pay-off shaft, that is: the tin plate is not fixed on the pay-off shaft. During the pay-off process, the tin plate may rotate abnormally due to inertia, causing the tin wire to be randomly stacked together, affecting the normal operation of the soft solder die bonder. In addition, due to only having one pay-off shaft, when replacing the tin plate, the tin wire will be interrupted, which will also affect the normal operation of the soft solder die bonder. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a damping pay-off assembly that can be reliably fixed and pay off only when force is applied.

[0004] To solve the above technical problem, the technical solution adopted by the present invention is: a damping pay-off assembly, including: a base, a fixed vertical plate provided on the base, and a rotating mandrel whose inner end is movably provided in the fixed vertical plate. A clamping spring piece sleeve is provided on the rotating mandrel. A limiting plate is provided on the inner side of the rotating mandrel inside the clamping spring piece sleeve, and a locking cap is provided on the outer end of the rotating mandrel outside the clamping spring piece sleeve. The inner end of the rotating mandrel extends out of the fixed vertical plate and is provided with a damping disc. A damping fixing block located above the damping disc is also provided on the fixed vertical plate. A damping adjusting block is provided on the damping fixing block and is located below the damping disc. The damping fixing block and the damping adjusting block are respectively provided with arc-shaped grooves corresponding to the corresponding parts of the damping disc facing the damping disc. The connection structure between the damping adjusting block and the damping fixing block includes: a pair of damping adjusting bolts and a pair of damping adjusting springs. The damping fixing block is provided with a pair of damping adjusting threaded holes corresponding to the damping adjusting bolts, and the pair of damping adjusting threaded holes are located on both sides of the damping disc. The damping adjusting block is provided with damping adjusting mounting holes corresponding to the damping adjusting threaded holes one by one. The damping adjusting mounting holes are in a stepped shape, including: an inner section with a smaller diameter, that is, a section close to the damping fixing block corresponding to the damping adjusting bolt, and an outer section with a larger diameter corresponding to the damping adjusting spring. The damping adjusting bolts are sleeved with spring washers and damping adjusting springs and then extend into the damping adjusting mounting holes on the damping adjusting block, and the damping adjusting bolts extend out of the inner section of the damping adjusting mounting holes and extend into the corresponding damping adjusting threaded holes on the damping fixing block.

[0005] As a preferred solution, in the damping unwinding assembly described above, the rotating mandrel is movably arranged in the fixed vertical plate through deep groove ball bearings.

[0006] As a preferred solution, in the damping unwinding assembly described above, a bearing locking nut is arranged outside the deep groove ball bearing on the rotating mandrel.

[0007] As a preferred solution, in the damping unwinding assembly described above, an annular placement groove corresponding to the damping adjustment spring is formed on the bottom wall of the outer section of the damping adjustment mounting hole on the damping adjustment block, and the inner end of the damping adjustment spring is arranged in this annular placement groove.

[0008] As a preferred solution, in the damping unwinding assembly described above, the installation method between the damping fixed block and the fixed vertical plate is as follows: at least a pair of parallel long circular holes are formed on the damping fixed block, installation threaded holes corresponding to the long circular holes on the damping fixed block are formed on the fixed vertical plate, and installation bolts are selected to pass through the long circular holes on the damping fixed block and be arranged in the installation threaded holes on the fixed vertical plate.

[0009] As a preferred solution, in the damping unwinding assembly described above, the long circular holes on the damping fixed block are counterbored holes, so that the bolt heads of the installation bolts are sunk into the long circular holes on the damping fixed block.

[0010] The present invention also provides a tin plate unwinding device that can be reliably fixed, unwind only when stressed, and continuously unwind without interruption, including: a support locking seat, a Y-direction adjustment tube provided with at least one anti-rotation surface, an X-direction adjustment tube provided with at least one anti-rotation surface, an XY-direction connection locking seat, and at least a pair of the damping unwinding assemblies described in the present invention. The Y-direction adjustment tube is penetrated in the support locking seat, one end of the Y-direction adjustment tube is penetrated in the XY-direction connection locking seat along the Y direction, and the X-direction adjustment tube is penetrated in the XY-direction connection locking seat along the X direction; an X-direction mounting hole corresponding to the X-direction adjustment tube is formed on the base of the damping unwinding assembly, and the base is arranged on the X-direction adjustment tube through the X-direction mounting hole.

[0011] As a preferred solution, in the described tin plate unwinding device, the X-direction adjustment tube and the Y-direction adjustment tube are both square tubes. Correspondingly, the support locking seat is provided with a square hole with a notch corresponding to the Y-direction adjustment tube. The support locking seat is provided with a support locking through hole penetrating one side wall of the notch of the support locking seat square hole. A support locking threaded hole corresponding to the support locking through hole is provided on the other side wall of the notch of the support locking seat square hole. A locking bolt is selected to pass through the support locking through hole on the support locking seat and into the support locking threaded hole provided on the other side wall of the notch of the support locking seat square hole. The XY-direction connection locking seat is respectively provided with a square hole with a notch corresponding to the X-direction adjustment tube, namely, the X-direction connection locking seat square hole, and a square hole with a notch corresponding to the Y-direction adjustment tube, namely, the Y-direction connection locking seat square hole. The XY-direction connection locking seat is respectively provided with an X-direction connection locking through hole penetrating one side wall of the notch of the X-direction connection locking seat square hole and a Y-direction connection locking through hole penetrating one side wall of the notch of the Y-direction connection locking seat square hole. An X-direction connection locking threaded hole corresponding to the X-direction connection locking through hole is provided on the other side wall of the notch of the X-direction connection locking seat square hole. A Y-direction connection locking threaded hole corresponding to the Y-direction connection locking through hole is provided on the other side wall of the notch of the Y-direction connection locking seat square hole. A locking bolt is selected to pass through the X-direction connection locking through hole on the XY-direction connection locking seat and into the X-direction connection locking threaded hole provided on the other side wall of the notch of the X-direction connection locking seat square hole. A locking bolt is selected to pass through the Y-direction connection locking through hole on the XY-direction connection locking seat and into the Y-direction connection locking threaded hole provided on the other side wall of the notch of the Y-direction connection locking seat square hole.

[0012] As a preferred solution, in the described tin plate unwinding device, fixed mounting edges are provided on both sides of the support locking seat, and fixed mounting holes are provided on the fixed mounting edges.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. By providing a clamping reed sleeve on the rotating mandrel in the present invention, the tin plate can be reliably fixed on the rotating mandrel. By providing a damping disc on the rotating mandrel, a damping fixing block and a damping adjusting block are respectively provided above and below the damping disc, and a damping adjusting bolt and a damping adjusting spring are provided between the damping fixing block and the damping adjusting block to prevent the rotating mandrel from rotating due to inertia, thereby realizing the orderly unwinding of the tin wire. The structure of the entire damping unwinding assembly is compact and reasonable, and the operation is very simple.

[0015] 2. The rotating mandrel of the present invention is arranged in the fixed vertical plate through a deep groove ball bearing, and a bearing locking nut is provided outside the deep groove ball bearing, so that the rotation of the rotating mandrel is smooth, stable and safe.

[0016] 3. In the present invention, an annular placement groove is provided on the bottom wall of the outer section of the damping adjustment mounting hole, and the inner end of the damping adjustment spring is arranged in this annular placement groove, so that the damping adjustment spring is concentric with the damping adjustment bolt, making it more accurate and stable when adjusting the elastic force of the damping adjustment spring.

[0017] 4. In the present invention, an oblong hole is provided on the damping fixing block, so that the relative position between the damping fixing block and the damping disc can be adjusted, thereby the gap between the damping fixing block and the damping disc can be adjusted, and the damping of the damping disc can be adjusted more accurately.

[0018] 5. In the present invention, two damping unwinding assemblies as described in the present invention are provided on the X-direction adjustment pipe, so that on the premise of ensuring the reliable fixation of the tin pan and the orderly unwinding of the tin wire, the rapid connection of the tin wire without interruption is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the tin pan unwinding device described in the present invention.

[0020] Figure 2 and Figure 3 are three-dimensional structural schematic diagrams of two perspectives of the damping unwinding assembly described in the present invention.

[0021] Figure 4 is a longitudinal sectional structural schematic diagram of the damping unwinding assembly described in the present invention.

[0022] Figure 5 is a transverse sectional structural schematic diagram of the damping unwinding assembly described in the present invention.

[0023] Figures 1 to 5 The reference numerals in are respectively: 1. Support locking seat, 101. Fixed installation edge, 11. Square hole of support locking seat, 111. Notch, 12. Support locking through hole, 2. Insulating washer, 3. Y-direction adjustment square pipe, 4. XY-direction connection locking seat, 42. Square hole of Y-direction connection locking seat, 421. Notch, 422. Locking bolt of connection locking seat, 5. X-direction adjustment square pipe, 6. Damping unwinding assembly, 61. Base, 6101. X-direction mounting hole, 6102. Base locking threaded hole, 62. Damping adjustment block, 621. Damping adjustment mounting hole, 63. Damping fixing block, 631. Damping adjustment threaded hole, 632. Oblong hole, 64. Fixed vertical plate, 642. Mounting threaded hole, 65. Limiting plate, 66. Clamping spring piece sleeve, 67. Locking cap, 68. Rotating core shaft, 680. Damping disc, 69. Bearing locking nut, 610. Deep groove ball bearing, 611. Damping adjustment spring, 612. Damping adjustment bolt, 613. Spring washer. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following will, in conjunction with the accompanying drawings, describe in detail the specific implementation of a tin plate unwinding device and the damping unwinding assembly therein according to the present invention.

[0025] As Figure 1 shown, a tin plate unwinding device according to the present invention includes: a support locking seat 1, a Y-direction adjustment square tube 3, an XY-direction connection locking seat 4, an X-direction adjustment square tube 5, and a pair of damping unwinding assemblies 6. The Y-direction adjustment square tube 3 is inserted into the support locking seat 1. The specific setting method is as follows: a support locking seat square hole 11 with a notch 111 corresponding to the Y-direction adjustment square tube 3 is provided on the support locking seat 1. A support locking through hole 12 is provided on one side wall of the support locking seat 1 penetrating through the notch 111 of the support locking seat square hole 11. A support locking threaded hole corresponding to the support locking through hole 12 is provided on the other side wall of the notch 111 of the support locking seat square hole 11. Select a support locking seat locking bolt to pass through the support locking through hole 12 on the support locking seat 1 and into the support locking threaded hole provided on the other side wall of the notch 111 of the support locking seat square hole 11 (which is a common technique in the art and will not be described in detail here), so as to lock the Y-direction adjustment square tube 3 in the support locking seat square hole 11 on the support locking seat 1. One end of the Y-direction adjustment square tube 3 is inserted into the XY-direction connection locking seat 4 along the Y direction. The specific setting method is as follows: a Y-direction connection locking seat square hole 42 with a notch 421 corresponding to the Y-direction adjustment square tube 3 is provided on the XY-direction connection locking seat 4. A Y-direction connection locking through hole is provided on one side wall of the XY-direction connection locking seat 4 penetrating through the notch 421 of the Y-direction connection locking seat square hole 42. A Y-direction connection locking threaded hole corresponding to the Y-direction connection locking through hole is provided on the other side wall of the notch 421 of the Y-direction connection locking seat square hole 42 (which is a common technique in the art and will not be described in detail here). Select a connection locking seat locking bolt 422 to pass through the Y-direction connection locking through hole on the XY-direction connection locking seat 4 and into the Y-direction connection locking threaded hole provided on the other side wall of the notch 421 of the Y-direction connection locking seat square hole 42 on the XY-direction connection locking seat 4. The middle part of the X-direction adjustment square tube 5 is inserted into the XY-direction connection locking seat 4, and its installation method is the same as that of the Y-direction adjustment square tube 3 and will not be described again here. The pair of damping unwinding assemblies 6 are respectively installed on both sides of the X-direction adjustment square tube 5 where it is located in the XY-direction connection locking seat 4, as Figures 2 to 5As shown in the figure, the damping unwinding assembly 6 includes: a base 61, a fixed vertical plate 64 provided on the base 61, and a rotating mandrel 68 whose inner end is movably provided in the fixed vertical plate 64 through a deep groove ball bearing 610. A bearing locking nut 69 is provided on the rotating mandrel 68 outside the deep groove ball bearing 610. A clamping spring sleeve 66 is provided on the rotating mandrel 68. A limiting plate 65 is provided on the rotating mandrel 68 inside the clamping spring sleeve 66, and a locking cap 67 is provided on the end of the rotating mandrel 68 outside the clamping spring sleeve 66. The inner end of the rotating mandrel 68 extends out of the fixed vertical plate 64 and is provided with a damping disc 680. A damping fixing block 63 is also provided on the fixed vertical plate 64 above the damping disc 680. The specific installation method is as follows: A pair of parallel long circular holes 632 are opened on the damping fixing block 63, and mounting threaded holes 642 corresponding to the long circular holes 632 on the damping fixing block 63 are opened on the fixed vertical plate 64. Select mounting bolts to pass through the long circular holes 632 on the damping fixing block 63 and be arranged in the mounting threaded holes 642 on the fixed vertical plate 64. A damping adjusting block 62 is provided on the damping fixing block 63 below the damping disc 680. The damping fixing block 63 is provided with an arc-shaped groove corresponding to the upper half of the damping disc 680 facing the damping disc 680, and the damping adjusting block 62 is provided with an arc-shaped groove corresponding to the lower half of the damping disc 680 facing the damping disc 680. The specific connection structure between the damping adjusting block 62 and the damping fixing block 63 includes: a pair of damping adjusting bolts 612 and a pair of damping adjusting springs 611. The damping fixing block 63 is provided with a pair of damping adjusting threaded holes 631 corresponding to the damping adjusting bolts 612 facing the damping adjusting block 62. This pair of damping adjusting threaded holes 631 are located on both sides of the damping disc 680. The damping adjusting block 62 is provided with damping adjusting mounting holes 621 corresponding one by one to the damping adjusting threaded holes 631. The damping adjusting mounting holes 621 are stepped, including: an inner section with a smaller diameter, that is, a section close to the damping fixing block 63 corresponding to the damping adjusting bolt 612, and an outer section with a larger diameter corresponding to the damping adjusting spring 611. The damping adjusting bolts 612 are sleeved with spring washers 613 and damping adjusting springs 611 and then extend into the damping adjusting mounting holes 621 on the damping adjusting block 62. And the damping adjusting bolts 612 extend out from the inner section of the damping adjusting mounting holes 621 and extend into the corresponding damping adjusting threaded holes 631 on the damping fixing block 63. The base 61 is provided with an X-direction mounting hole 6101 corresponding to the X-direction adjusting square tube 5. The base 61 is arranged on the X-direction adjusting square tube 5 through the X-direction mounting hole 6101. The base 61 is also provided with a base locking threaded hole 6102 perpendicular and communicating with the X-direction mounting hole 6101 facing the X-direction mounting hole 6101. A locking screw (which is a common technique in the art and will not be described in detail here) is arranged in the base locking threaded hole 6102.

[0026] In actual application, an annular placement groove corresponding to the damping adjustment spring 611 is formed in the bottom wall of the outer section of the damping adjustment mounting hole 621 on the damping adjustment block 62, and the inner end of the damping adjustment spring 611 is arranged in this annular placement groove; the long circular hole 632 on the damping fixing block 63 is a counterbore, so that the bolt head of the mounting bolt is sunk into the long circular hole 632 on the damping fixing block 63; as Figure 1 shown, fixed mounting edges 101 are arranged on both sides of the support locking seat 1, and a pair of fixed mounting holes are formed in the fixed mounting edges 101. The fixed mounting edges 101 on the support locking seat 1 are fixed on the corresponding equipment by insulating washers 2 corresponding to the fixed mounting holes.

[0027] In actual use, first, unscrew the locking cap 67, install the tin pan on the clamping spring piece sleeve 66, then, screw on the locking cap 67, and then, adjust a pair of damping adjustment bolts 612 to make the damping between the damping disk 680 and the damping adjustment block 62 appropriate, which can not only ensure the normal rotation of the rotating mandrel 68, but also prevent the rotating mandrel 68 from rotating due to inertia, so as to realize the orderly unwinding of the tin wire.

[0028] In summary, the above are only the preferred embodiments of the present invention, and are not used to limit the scope of implementation of the present invention. Any equal changes and modifications made to the shape, structure, features and spirit described in the claims of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A damping unwinding assembly, comprising: The cam is an angular channel that is adapted to move the cam face to the cam face, and a plurality of cams are provided on the cam face to adjust the cam face, wherein the cam face has a plurality of cams that are adapted to move the cam face, and a plurality of cams are provided on the cam face to adjust the cam face. The damping adjustment threaded holes are arranged together, and the pair of damping adjustment threaded holes are located on both sides of the damping disk. The damping adjustment block is provided with damping adjustment mounting holes corresponding to the damping adjustment threaded holes one by one. The damping adjustment mounting holes are stepped, including: an inner section with a smaller diameter, i.e., a section close to the damping fixing block, corresponding to the damping adjustment bolt, and an outer section with a larger diameter, corresponding to the damping adjustment spring. The damping adjustment bolt is sleeved with a spring washer and a damping adjustment spring and then extends into the damping adjustment mounting hole on the damping adjustment block. Moreover, the damping adjustment bolt extends from the inner section of the damping adjustment mounting hole and extends into the corresponding damping adjustment threaded hole on the damping fixing block. An annular mounting groove corresponding to the damping adjustment spring is provided on the bottom wall of the outer section of the damping adjustment mounting hole on the damping adjustment block, and the inner end of the damping adjustment spring is arranged in the annular mounting groove.

2. A damping unwinding assembly as claimed in claim 1, characterized in that: The rotating mandrel is movably arranged in the fixed vertical plate through a deep groove ball bearing.

3. A damping unwinding assembly as claimed in claim 2, characterized in that: The rotating mandrel is provided with a bearing locking nut on the outer side of the deep groove ball bearing.

4. A damping unwinding assembly as claimed in claim 1, characterized in that: The specific installation method between the damping fixing block and the fixed vertical plate is: at least one pair of mutually parallel oblong holes is opened on the damping fixing block, and the fixed vertical plate is opened with mounting threaded holes corresponding to the oblong holes on the damping fixing block, and mounting bolts are selected to pass through the oblong holes on the damping fixing block and are set in the mounting threaded holes on the fixed vertical plate.

5. A damping unwinding assembly as claimed in claim 4, characterized in that: The oblong hole on the damping fixing block is a countersunk hole, so that the bolt cap of the mounting bolt is immersed in the oblong hole on the damping fixing block.

6. A tin tray unwinding device, comprising: A support locking seat, a Y-direction adjustment tube provided with at least one anti-rotation surface, an X-direction adjustment tube provided with at least one anti-rotation surface and an XY-direction connecting locking seat, wherein the Y-direction adjustment tube is passed through the support locking seat, one end of the Y-direction adjustment tube is passed through the XY-direction connecting locking seat along the Y direction, and the X-direction adjustment tube is passed through the XY-direction connecting locking seat along the X direction. It is characterized in that the tin tray unwinding device also includes at least one pair of damping unwinding components according to any one of claims 1 to 5, and an X-direction mounting hole corresponding to the X-direction adjustment tube is opened on the base of the damping unwinding component, and the base is arranged on the X-direction adjustment tube through the X-direction mounting hole.

7. A tin tray unwinding device as claimed in claim 6, characterized in that: The X-axis adjustment tube and the Y-axis adjustment tube are both square tubes, and correspondingly, a supporting locking seat square hole with a notch corresponding to the Y-axis adjustment tube is provided on the supporting locking seat, and a supporting locking through hole penetrating through the side wall of one side of the notch of the supporting locking seat square hole is provided on the supporting locking seat, and a supporting locking threaded hole corresponding to the supporting locking through hole is provided on the other side wall of the notch of the supporting locking seat square hole, and a locking bolt is selected to pass through the supporting locking through hole on the supporting locking seat and the supporting locking threaded hole provided on the other side wall of the notch of the supporting locking seat square hole; the XY-axis connecting locking seat is respectively provided with an X-axis connecting locking seat square hole with a notch corresponding to the X-axis adjustment tube, and a Y-axis connecting locking seat square hole with a notch corresponding to the Y-axis adjustment tube, and the XY-axis connecting locking seat is respectively provided with An X-direction connection locking through hole passes through one side wall of the square hole notch of the X-direction connection locking seat, and a Y-direction connection locking through hole passes through one side wall of the square hole notch of the Y-direction connection locking seat. An X-direction connection locking threaded hole corresponding to the X-direction connection locking through hole is provided on the other side wall of the square hole notch of the X-direction connection locking seat, and a Y-direction connection locking threaded hole corresponding to the Y-direction connection locking through hole is provided on the other side wall of the square hole notch of the Y-direction connection locking seat. A locking bolt is selected to pass through the X-direction connection locking through hole on the XY-direction connection locking seat and is set in the X-direction connection locking threaded hole on the other side wall of the square hole notch of the X-direction connection locking seat. A locking bolt is selected to pass through the Y-direction connection locking through hole on the XY-direction connection locking seat and is set in the Y-direction connection locking threaded hole on the other side wall of the square hole notch of the Y-direction connection locking seat.

8. A tin tray unwinding device as claimed in claim 6, characterized in that: Both sides of the support locking seat are provided with fixed installation edges, and fixed installation holes are opened on the fixed installation edges.

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