Copper foil shearing machine for printed circuit board

Abstract

The utility model relates to the technical field of copper foil shearing machines, in particular to a copper foil shearing machine for a printed circuit board, which comprises an operation platform, the bottom of the operation platform is connected with a cutter capable of moving up and down through a driving cylinder, a cutting seam matched with the cutter is arranged on the operation platform, and a rotating shaft is rotatably connected right above the cutting seam. A driving mechanism for driving the rotating shaft to rotate is arranged on the operating platform, a pressing roller and a smoothing roller are arranged on the rotating shaft, the pressing roller is connected with the rotating shaft through an adjusting mechanism, and the smoothing roller is connected with the rotating shaft through a telescopic mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of copper foil shearing machines, in particular to a copper foil shearing machine used for printed circuit boards. Background Art

[0002] Printed circuit boards, or PCBs for short, are one of the important components of the electronics industry. Almost every electronic device, from small electronic watches and calculators to large computers, communication electronic equipment, and military weapon systems, as long as they have electronic components such as integrated circuits, must use PCBs to make electrical interconnections between the various components. During the production process of printed circuit boards, copper foil needs to be sheared. After searching, a Chinese patent with publication number CN218905480U discloses a copper foil shearing machine, including a housing, a platform, a guide rod, an upper knife holder, a lower knife holder, a drive assembly, a telescopic rod, a U-shaped frame, a roller shaft, a pressure roller, and a pushing unit. A through hole is opened in the front and back of the housing, and the platform is fixed inside the housing. The U-shaped frame is fixed below the telescopic rod. Through the arrangement of the pushing unit, the U-shaped frame, the roller shaft and the pressure roller, the copper foil can be pressed and limited during the process of the blade cutting the copper foil, thereby improving the stability and avoiding errors in the shearing of the copper foil. However, it is not convenient to smooth the copper foil before shearing. Since the copper foil is soft and prone to wrinkles, it is easy to have uneven cutting seams during cutting. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the utility model provides a copper foil shearing machine for printed circuit boards, which facilitates smoothing of the copper foil before shearing and improves the uniformity of the copper foil cut seams.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a copper foil shearing machine for printed circuit boards, comprising an operating platform, the bottom of the operating platform is connected to a cutter that can move up and down through a driving cylinder, a cutting slit adapted to the cutter is opened on the operating platform, a rotating shaft is rotatably connected just above the cutting slit, a driving mechanism for driving the rotating shaft to rotate is provided on the operating platform, a pressure roller and a smoothing roller are provided on the rotating shaft, the pressure roller is connected to the rotating shaft by an adjusting mechanism, and the smoothing roller is connected to the rotating shaft by a telescopic mechanism, further, the smoothing rollers can be provided in two groups and symmetrically arranged on both sides of the pressure roller.

[0007] Preferably, a loading mechanism is provided on one side of the operating platform, and the loading mechanism includes a loading platform that is flush with and fixedly connected to the operating platform, a copper foil roll is rotatably connected to the loading platform, and a driving component for driving the copper foil roll to rotate is provided at the bottom of the loading platform.

[0008] Preferably, the telescopic mechanism includes a plurality of sleeves fixedly connected to the rotating shaft, a sliding rod is slidably fitted on the sleeve, one end of the plurality of sliding rods extending out of the sleeve is fixedly connected to the mounting seat 2, the smoothing roller is rotatably connected to the mounting seat 2, and one end of the sliding rod extending into the sleeve is fixedly connected to a sliding plate that slides in sealing cooperation with the sleeve, and a spring is provided between the sliding plate and the inner wall of the sleeve.

[0009] Preferably, the adjustment mechanism includes a mounting seat and a screw, the pressure roller is rotatably connected to the mounting seat, and the side of the mounting seat away from the pressure roller is fixedly connected to a fixed plate through a plurality of fixing rods, the screw is threadedly connected to the fixed plate, and one end of the screw is rotatably connected to the rotating shaft, and the other end of the screw is fixedly connected to an adjustment cap, and guide rods that slide with the fixed plate are respectively provided on both sides of the adjustment cap, and the guide rods are fixedly connected to the rotating shaft.

[0010] Preferably, the driving cylinder is fixedly mounted on the bottom of the slit via a U-shaped frame, and the output end of the driving cylinder is fixedly connected to the cutter via a push bar that is slidably engaged with the U-shaped frame.

[0011] Preferably, the driving mechanism includes a driving motor 1 fixedly mounted on the bottom of the operating platform, the rotating shaft is rotatably connected to the operating platform through two brackets, the output shaft of the driving motor 1 is connected to the rotating shaft through a synchronous belt 1, and the driving assembly includes a driving motor 2 fixedly mounted on the bottom of the loading platform, and the output shaft of the driving motor 2 is connected to the copper foil roll through a synchronous belt 2.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the present invention provides a copper foil shearing machine for printed circuit boards, which has the following beneficial effects:

[0014] The copper foil shearing machine for printed circuit boards can drive the rotating shaft to rotate through a driving mechanism, thereby driving the pressure roller and the smoothing roller to rotate. When the smoothing roller rotates to contact the copper foil placed on the operating platform, the copper foil is smoothed to the other side with the rotation of the rotating shaft and with the cooperation of the telescopic mechanism. When the pressure roller moves to the top of the slit and contacts the copper foil, the cutter is pushed out of the slit by the driving cylinder and cooperates with the pressure roller to cut the copper foil. The device is convenient for smoothing the copper foil before shearing, thereby improving the neatness of the copper foil slit. At the same time, the copper foil is automatically smoothed when the pressure roller moves to the top of the slit. The operation is convenient and the shearing efficiency is improved. The contact tightness between the pressure roller and the copper foil can be adjusted by the adjustment mechanism to avoid the situation where the cut edge is warped during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic structural diagram of the utility model from other perspectives;

[0017] Figure 3 It is a partial cross-sectional structural diagram of the cooperation among the rotating shaft, the pressing roller and the smoothing roller of the utility model.

[0018] Markings in the attached figure: 1. operating platform; 2. slit; 3. cutter; 4. drive cylinder; 5. U-shaped frame; 6. push strip; 7. bracket; 8. rotating shaft; 9. pressure roller; 10. mounting seat 1; 11. fixing rod; 12. fixing plate; 13. screw; 14. guide rod; 15. adjusting cap; 16. smoothing roller; 17. mounting seat 2; 18. sleeve; 19. slide rod; 20. slide; 21. spring; 22. driving motor 1; 23. synchronous belt 1; 24. loading platform; 25. copper foil roll; 26. driving motor 2; 27. synchronous belt 2. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example:

[0021] See also Figure 1-3When the pressing roller 9 moves to the top of the slit 2 and contacts the copper foil, the cutter 3 is pushed out of the slit 2 by the driving cylinder 4 and cooperates with the pressing roller 9 to cut the copper foil.

[0022] Specifically, a loading mechanism is provided on one side of the operating platform 1, and the loading mechanism includes a loading platform 24 that is flush with and fixedly connected to the operating platform 1, and a copper foil roll 25 is rotatably connected to the loading platform 24. A driving component for driving the copper foil roll 25 to rotate is provided at the bottom of the loading platform 24. By setting up the loading mechanism, it is convenient to release the copper foil onto the operating platform 1. Starting the driving component can unwind the copper foil roll 25, and cooperate with the smoothing roller 16 to smooth the copper foil.

[0023] Specifically, the telescopic mechanism includes a plurality of sleeves 18 fixedly connected to the rotating shaft 8, and a slide rod 19 is slidably fitted on the sleeve 18. One end of the plurality of slide rods 19 extending out of the sleeve 18 is fixedly connected to the mounting seat 2 17, and the smoothing roller 16 is rotatably connected to the mounting seat 2 17. One end of the slide rod 19 extending into the sleeve 18 is fixedly connected to a slide 20 that is sealingly and slidingly fitted with the sleeve 18. A spring 21 is provided between the slide 20 and the inner wall of the sleeve 18. When the smoothing roller 16 rotates to contact the copper foil, under the limiting action of the operating platform 1, as the smoothing roller 16 rotates, the spring 21 is compressed, and the slide rod 19 slides into the sleeve 18. As the smoothing roller 16 moves to the cutting seam 2, the compression reaches its limit, and then as the smoothing roller 16 continues to rotate, the spring 21 slowly stretches, pushing the slide rod 19 outward toward the sleeve 18 until the smoothing roller 16 is completely separated from the operating platform 1.

[0024] The adjusting mechanism includes a mounting base 10 and a screw 13. The pressure roller 9 is rotatably connected to the mounting base 10. A fixing plate 12 is fixedly connected to the mounting base 10 on the side away from the pressure roller 9 through a plurality of fixing rods 11. The screw 13 is threadedly connected to the fixing plate 12, and one end of the screw 13 is rotatably connected to the rotating shaft 8. The other end of the screw 13 is fixedly connected to an adjusting cap 15. Guide rods 14 that slide with the fixing plate 12 are respectively provided on both sides of the adjusting cap 15. The guide rods 14 are fixedly connected to the rotating shaft 8. By rotating the adjusting cap 15, it is easy to drive the screw 13 to rotate, and the screw 13 is threadedly connected to the fixing plate 12, thereby driving the fixing plate 12 to move up or down, thereby facilitating the adjustment of the distance between the pressure roller 9 and the rotating shaft 8. The pressure roller 9 can be adjusted to rotate to the distance between the cutting seam 2 and the rotating shaft 8, thereby adjusting the contact tightness with the copper foil to avoid the edge warping during the cutting process.

[0025] Specifically, the drive cylinder 4 is fixedly installed at the bottom of the slit 2 through a U-shaped frame 5, and the output end of the drive cylinder 4 is fixedly connected to the cutter 3 through a push bar 6 that slides with the U-shaped frame 5. The U-shaped frame 5 facilitates the fixed installation of the drive cylinder 4 at the bottom of the slit 2, and the cooperation with the push bar 6 improves the stability of the up and down movement of the cutter 3. Furthermore, the drive cylinder 4 can be hydraulically driven or pneumatically driven.

[0026] Specifically, the driving mechanism includes a driving motor 22 fixedly mounted on the bottom of the operating platform 1, the rotating shaft 8 is rotatably connected to the operating platform 1 through two brackets 7, the output shaft of the driving motor 22 is connected to the rotating shaft 8 through a synchronous belt 23, and the driving assembly includes a driving motor 26 fixedly mounted on the bottom of the loading platform 24, the output shaft of the driving motor 26 is connected to the copper foil roll 25 through a synchronous belt 27, when the driving motor 22 is started, the output shaft of the driving motor 22 rotates, and the rotating shaft 8 is driven to rotate through the transmission cooperation of the synchronous belt 23, when the driving motor 26 is started, the output shaft of the driving motor 26 rotates, and the copper foil roll 25 is driven to rotate through the transmission cooperation of the synchronous belt 27 to unwind.

[0027] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0028] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0029] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A copper foil shearing machine for printed circuit boards, comprising an operating platform (1), characterized in that: The bottom of the operating platform (1) is connected to a cutter (3) that can move up and down through a driving cylinder (4); a cutting slit (2) adapted to the cutter (3) is provided on the operating platform (1); a rotating shaft (8) is rotatably connected just above the cutting slit (2); a driving mechanism for driving the rotating shaft (8) to rotate is provided on the operating platform (1); a pressing roller (9) and a smoothing roller (16) are provided on the rotating shaft (8); the pressing roller (9) is connected to the rotating shaft (8) through an adjusting mechanism, and the smoothing roller (16) is connected to the rotating shaft (8) through a telescopic mechanism.

2. The copper foil shearing machine for printed circuit boards according to claim 1, characterized in that: A loading mechanism is provided on one side of the operating platform (1), the loading mechanism comprising a loading platform (24) flush with and fixedly connected to the operating platform (1), a copper foil roll (25) being rotatably connected to the loading platform (24), and a driving component for driving the copper foil roll (25) to rotate being provided at the bottom of the loading platform (24).

3. The copper foil shearing machine for printed circuit boards according to claim 2, characterized in that: The telescopic mechanism includes a plurality of sleeves (18) fixedly connected to the rotating shaft (8), a sliding rod (19) is slidably fitted on the sleeve (18), one end of the plurality of sliding rods (19) extending out of the sleeve (18) is fixedly connected to the second mounting seat (17), the smoothing roller (16) is rotatably connected to the second mounting seat (17), one end of the sliding rod (19) penetrating into the sleeve (18) is fixedly connected to a sliding plate (20) that is sealingly and slidably fitted with the sleeve (18), and a spring (21) is provided between the sliding plate (20) and the inner wall of the sleeve (18).

4. The copper foil shearing machine for printed circuit boards according to claim 3, characterized in that: The adjustment mechanism comprises a mounting seat (10) and a screw (13), the pressure roller (9) is rotatably connected to the mounting seat (10), a side of the mounting seat (10) away from the pressure roller (9) is fixedly connected to a fixed plate (12) via a plurality of fixing rods (11), the screw (13) is threadedly connected to the fixed plate (12), and one end of the screw (13) is rotatably connected to the rotating shaft (8), the other end of the screw (13) is fixedly connected to an adjustment cap (15), and guide rods (14) that slide with the fixed plate (12) are respectively provided on both sides of the adjustment cap (15), and the guide rods (14) are fixedly connected to the rotating shaft (8).

5. The copper foil shearing machine for printed circuit boards according to claim 1, characterized in that: The driving cylinder (4) is fixedly mounted on the bottom of the slit (2) via a U-shaped frame (5); the output end of the driving cylinder (4) is fixedly connected to the cutter (3) via a push bar (6) that is in sliding engagement with the U-shaped frame (5).

6. The copper foil shearing machine for printed circuit boards according to claim 2, characterized in that: The driving mechanism comprises a driving motor 1 (22) fixedly mounted on the bottom of the operating platform (1); the rotating shaft (8) is rotationally connected to the operating platform (1) via two brackets (7); the output shaft of the driving motor 1 (22) is transmission-connected to the rotating shaft (8) via a synchronous belt 1 (23); the driving assembly comprises a driving motor 2 (26) fixedly mounted on the bottom of the loading platform (24); the output shaft of the driving motor 2 (26) is transmission-connected to the copper foil roll (25) via a synchronous belt 2 (27).

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