Punching device

Abstract

The invention provides a punching device, and relates to the technical field of solar photovoltaic equipment manufacturing. The punching device comprises a first bearing plate, a second bearing plate and a third bearing plate which are sequentially arranged at intervals from top to bottom in the longitudinal direction, the first bearing plate is installed on the rack, and the second bearing plate is connected with the first bearing plate and can reciprocate in the longitudinal direction relative to the first bearing plate. The second supporting plate is connected with the third supporting plate and can reciprocate in the longitudinal direction relative to the third supporting plate. The driving mechanism is installed on the first bearing plate, a first through hole allowing the telescopic end of the driving mechanism to penetrate through is formed in the first bearing plate, and the telescopic end penetrates through the first through hole and is connected with the second bearing plate; and the cutter assembly is installed on the surface, facing the third supporting plate, of the second supporting plate, and a punching seam allowing the cutter assembly to penetrate through is formed in the third supporting plate.

Description

Technical Field

[0001] The present disclosure relates to the technical field of solar photovoltaic equipment manufacturing, and in particular to a punching device. Background Art

[0002] Solar photovoltaic modules are assembled from coated glass and EVA film. During the manufacturing process, it is necessary to punch out some process cuts such as electrode lead wires on the EVA film.

[0003] However, currently, the punching of EVA film process cuts mostly requires manual assistance, resulting in low efficiency and accuracy of film cutting and a waste of manpower. Summary of the invention

[0004] A technical problem to be solved by the present disclosure is that the punching of the process cuts of the EVA film mostly requires manual assistance, resulting in low efficiency and precision of the film cutting and a waste of manpower.

[0005] In order to solve the above technical problems, the embodiment of the present disclosure provides a punching device, which includes: a first support plate, a second support plate and a third support plate which are arranged in sequence from top to bottom in the longitudinal direction, the first support plate is installed on a frame, the second support plate is connected to the first support plate and can reciprocate in the longitudinal direction relative to the first support plate, and the second support plate is connected to the third support plate and can reciprocate in the longitudinal direction relative to the third support plate;

[0006] A driving mechanism is mounted on the first supporting plate, and a first through hole is provided on the first supporting plate for the telescopic end of the driving mechanism to pass through, and the telescopic end passes through the first through hole and is connected to the second supporting plate; and

[0007] The cutter assembly is installed on the surface of the second supporting plate facing the third supporting plate. The third supporting plate is provided with a punching slot for the cutter assembly to pass through.

[0008] In some embodiments, the cutter assembly includes: a plurality of cutter bodies arranged along a first direction, the blade of each cutter body forms an acute angle with a horizontal plane.

[0009] In some embodiments, two edges of the cutter body facing each other in the first direction are respectively provided with overlapping inclined surfaces, so that adjacent cutter bodies are partially overlapped in the second direction through the overlapping inclined surfaces;

[0010] The second direction is the thickness direction of the cutter body, and the first direction and the second direction are perpendicular to each other and are respectively perpendicular to the longitudinal direction.

[0011] In some embodiments, a plurality of first guide rods extending longitudinally are disposed on the second support plate, the first guide rods respectively movably penetrate the first support plate, and a first linear bearing corresponding to and matingly connected to the plurality of first guide rods is disposed on the first support plate.

[0012] In some embodiments, mounting seats are respectively provided on both sides of the second supporting plate in the first direction, and a limiting hole is provided on the mounting seat, a second through hole corresponding to and coaxial with the limiting hole is provided on the second supporting plate, and a threaded hole corresponding to the second through hole is provided on the third supporting plate;

[0013] A connecting screw is arranged in the limiting hole, the screw shaft diameter of the connecting screw is respectively adapted to the apertures of the second through hole and the threaded hole, and is threadedly connected to the threaded hole, and the head diameter of the connecting screw is adapted to the aperture of the limiting hole.

[0014] In some embodiments, at least one second guide rod is respectively arranged on both sides of the third support plate in the first direction, and the second guide rods respectively movably penetrate the second support plate and the mounting seat, and the mounting seat is provided with a second linear bearing corresponding to and matingly connected to each second guide rod.

[0015] In some embodiments, a spring is sleeved on the exterior of a portion of the second guide rod located between the second support plate and the third support plate.

[0016] In some embodiments, a single-side gap between the cutter body and the punching slit in the second direction is not less than 0.1 mm and not more than 0.2 mm.

[0017] In some embodiments, the cutter body is detachably connected to the second support plate.

[0018] In some embodiments, a surface of the first support plate facing away from the second support plate is provided with a plurality of support columns extending in the longitudinal direction for connection with the frame.

[0019] Through the above technical scheme, the punching and cutting device provided by the present invention moves downward through the telescopic end of the driving mechanism on the first support plate, driving the second support plate and the third support plate to move downward synchronously until the third support plate contacts and fits with the pressure plate of the frame. At this time, the telescopic end drives the second support plate to move further downward so that the cutter assembly passes through the punching and cutting slit of the third support plate. When the second support plate is pressed down to the extreme position, the cutter assembly can pass through the film material on the pressure plate and form a long slit on the film material, thereby realizing efficient and high-precision punching, without the need for manual assistance, and saving the work intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a schematic structural diagram of a punching device disclosed in an embodiment of the present disclosure;

[0022] Figure 2 is a schematic structural diagram of the punching device disclosed in the embodiment of the present disclosure from another angle;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the punching device disclosed in the embodiment of the present disclosure.

[0024] Description of reference numerals:

[0025] 11. first supporting plate; 111. first through hole; 112. supporting column; 12. second supporting plate; 121. second through hole; 122. transition connecting plate; 1221. hole portion; 123. limiting ring; 13. third supporting plate; 131. punching slit; 132. threaded hole;

[0026] 2. Driving mechanism; 21. Telescopic end; 22. Limiting end; 3. Cutter body; 31. Cutting edge; 4. First guide rod; 5. First linear bearing; 6. Mounting seat; 61. Limiting hole; 7. Connecting screw; 8. Second guide rod; 9. Second linear bearing; 10. Spring;

[0027] x, first direction; y, second direction; z, longitudinal direction. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0029] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0030] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0031] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0032] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0033] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0035] Example

[0036] Reference Figure 1 -Attached Figure 3,,An embodiment of the present invention provides a punching device, which includes: a first support plate 11, a second support plate 12 and a third support plate 13 which are arranged in sequence from top to bottom along the longitudinal direction z, the first support plate 11 is installed on a frame, the second support plate 12 is connected to the first support plate 11 and can reciprocate relative to the first support plate 11 along the longitudinal direction z, the second support plate 12 is connected to the third support plate 13 and can reciprocate relative to the third support plate 13 along the longitudinal direction z; a driving mechanism 2 is installed on the first support plate 11, and a first through hole 111 is provided on the first support plate 11 for the telescopic end 21 of the driving mechanism 2 to pass through, the telescopic end 21 passes through the first through hole 111 and is connected to the second support plate 12; and a cutter assembly is installed on the surface of the second support plate 12 facing the third support plate 13, and a punching slot 131 is provided on the third support plate 13 for the cutter assembly to pass through.

[0037] Specifically, the punching device provided in this embodiment is not limited to punching EVA films, but can also be used to punch other types of films or materials. After punching, process incisions such as electrode lead wires are formed. The punching device can be installed on a frame (not shown in the figure) and cooperate with the pressure plate of the frame (not shown in the figure) to punch the film material on the pressure plate.

[0038] The punching device mainly includes: a first support plate 11, a second support plate 12 and a third support plate 13, as well as a driving mechanism 2 and a cutter assembly; the first support plate 11, the second support plate 12 and the third support plate 13 are arranged and connected in sequence from top to bottom along the longitudinal direction z, forming the main structure of the device, playing the role of supporting and connecting various parts of the structure, the first support plate 11 is located on the top side, and it is installed on the frame to realize the connection between the device and the frame; the second support plate 12 is movably connected to the first support plate 11 and the third support plate 13 respectively, and the second support plate 12 can be reciprocated relative to the first support plate 11 and the third support plate 13 along the longitudinal direction z through the movable connection, and the specific connection method will be described in detail below; the driving mechanism 2 is installed on the first support plate 11, and can be specifically located at the center position of the top of the first support plate 11. The driving mechanism 2 can be but not limited to one of a cylinder, a hydraulic cylinder, a motor, etc., which has a reciprocating retractable telescopic end 21, and the first support plate 11 is provided with a reciprocating retractable telescopic end 21. The telescopic end 21 of the driving mechanism 2 reciprocates through the first through hole 111, and the telescopic end 21 passes through the first through hole 111 and is connected to the second supporting plate 12, so that the second supporting plate 12 can be driven to reciprocate along the longitudinal direction z relative to the first supporting plate 11; the cutter assembly is installed on the surface of the second supporting plate 12 facing the third supporting plate 13, and the third supporting plate 13 is provided with a punching slot 131 corresponding to and adapted to the cutter assembly. When the punching action is performed, the telescopic end 21 of the driving mechanism 2 moves downward, driving the second supporting plate 1 2 and the third support plate 13 move downward synchronously until the third support plate 13 contacts and fits with the pressure plate of the frame. At this time, the telescopic end 21 drives the second support plate 12 to move further downward so that the cutter assembly passes through the punching slit 131 of the third support plate 13. When the second support plate 12 is pressed down to the limit position, the cutter assembly can pass through the film material on the pressure plate and form a long slit, i.e., a process slit, on the film material. Then the driving mechanism 2 drives the telescopic end 21 to retract, and the other structures are all reset accordingly, and the punching operation is completed.

[0039] Among them, taking the driving mechanism 2 as a cylinder as an example, its telescopic end 21 can be a rod structure connected to the cylinder. In order to realize the connection between the telescopic end 21 and the second support plate 12, a transition connecting plate 122 that fits and is fixed thereto can be provided on the second support plate 12. A limit end 22 with a diameter larger than that of the main rod is provided at the lower end of the telescopic end 21, and a hole 1221 corresponding to and adapted to the limit end 22 is provided on the transition connecting plate 122. The hole 1221 can pass through the transition connecting plate 122, and the limit end 22 of the telescopic end 21 extends into the hole 1221 and is fixed to the hole 1221. A limiting ring 123 is fixedly set at the upper end opening of 21, so that the limiting end head 22 is limited by the limiting ring 123 on the upper side and the second supporting plate 12 on the lower side, or a constriction can be set at the upper end opening of the hole 1221 to form a mouth adapted to the main rod of the telescopic end 21, and the upper part can also cooperate with the limiting ring 123, so that the limiting end head 22 can be limited inside the transition connecting plate 122, thereby forming a reliable connection relationship with the transition connecting plate 122 and the second supporting plate 12, which can drive the transition connecting plate 122 and the second supporting plate 12 to rise or fall synchronously.

[0040] According to the above, an embodiment of the present invention proposes a punching device, in which the telescopic end 21 of the driving mechanism 2 on the first support plate 11 moves downward, driving the second support plate 12 and the third support plate 13 to move downward synchronously until the third support plate 13 contacts and fits with the pressure plate of the frame. At this time, the telescopic end 21 drives the second support plate 12 to move further downward, so that the cutter assembly passes through the punching slit 131 of the third support plate 13. When the second support plate 12 is pressed down to the extreme position, the cutter assembly can pass through the film material on the pressure plate and form a long slit on the film material, thereby realizing efficient and high-precision punching, without the need for manual assistance, and saving the work intensity of the staff.

[0041] Reference Figure 3 In a specific implementation, the cutter assembly includes: a plurality of cutter bodies 3 arranged along a first direction x, and a cutting edge 31 of each cutter body 3 forms an angle with a horizontal plane, and the angle is an acute angle.

[0042] Specifically, in order to achieve efficient and high-precision punching, in the technical solution adopted by the present invention, the cutter assembly can be configured to include a plurality of cutter bodies 3, the cutter bodies 3 can be made of superhard metal material, and the plurality of cutter bodies 3 are arranged continuously along the first direction x, and these cutter bodies 3 can be connected in series to form a narrow and long blade extending along the first direction x; in order to facilitate the cutter body 3 to pass through the film material, the blade 31 of each cutter body 3 can form an angle with the horizontal plane, and the angle can be an acute angle, so that the bottom end of the blade 31 of each cutter body 3 can be pointed, which can pierce the film material and form an incision during the downward movement, and a long slit can be formed on the film material after all the cutter bodies 3 are punched together.

[0043] Among them, in the technical solution adopted by the present invention, the cutter assembly is configured to be composed of a plurality of cutter bodies 3. On this basis, referring to the attached Figure 3 Each cutter body 3 can also be detachably connected to the second support plate 12, such as by screw connection, plug-in connection, clip connection, etc. Through the detachable connection method, the number of cutter bodies 3 can be adaptively increased or decreased according to the length of the process incision to be punched out, thereby improving the applicability and practicality of the device.

[0044] Among them, refer to the attached Figure 2 The width of the punching slit 131 in the second direction y is slightly larger than the size of the cutter body 3 in this direction. If the single-sided gap between the cutter body 3 and the punching slit 131 in the second direction y is too large, the cutter body 3 may be easily bent or broken. If the single-sided gap is too small, the cutter body 3 may encounter resistance when sliding in the punching slit 131. Therefore, the single-sided gap between the cutter body 3 and the punching slit 131 in the second direction y may be limited to not less than 0.1 mm and not more than 0.2 mm.

[0045] In a specific implementation, two edges of the cutter body 3 facing each other in the first direction x are respectively provided with overlapping slopes so that adjacent cutter bodies 3 are partially overlapped in the second direction y through the overlapping slopes; wherein the second direction y is the thickness direction of the cutter body 3, the first direction x and the second direction y are perpendicular to each other, and are respectively perpendicular to the longitudinal direction z.

[0046] Specifically, in order to achieve close connection between adjacent cutter bodies 3, in the technical solution adopted by the present invention, overlapping bevels are respectively provided on two opposite edges of each cutter body 3 in the first direction x, so that adjacent cutter bodies 3 are partially overlapped in the second direction y through the overlapping bevels. Through the overlapping connection relationship, gaps between adjacent cutter bodies 3 in the first direction x can be avoided, and the continuity of gaps formed by the cooperation of multiple cutter bodies 3 in punching can be achieved.

[0047] Reference Figure 1 -Attached Figure 3 In a specific implementation, a plurality of first guide rods 4 extending along the longitudinal direction z are arranged on the second support plate 12, and the first guide rods 4 respectively movably penetrate the first support plate 11, and a first linear bearing 5 corresponding to and matingly connected with the plurality of first guide rods 4 is arranged on the first support plate 11.

[0048] Specifically, in order to realize the movable connection between the second support plate 12 and the first support plate 11, in the technical solution adopted by the present invention, a plurality of first guide rods 4 extending along the longitudinal direction z can be arranged on the second support plate 12, the number of the first guide rods 4 can be four, and can be distributed in an array on the second support plate 12, the cross-sectional shape of the first guide rods 4 is circular, and the top ends thereof respectively movably penetrate the first support plates 11, and first linear bearings 5 ​​corresponding to and matingly connected with the plurality of first guide rods 4 are arranged on the first support plate 11, which can realize the functions of guiding and efficient transmission, and can reduce the friction of the relative movement between the first support plate 11 and the second support plate 12.

[0049] Reference Figure 1 -Attached Figure 3 In a specific implementation, mounting seats 6 are respectively provided on both sides of the second supporting plate 12 in the first direction x, and a limiting hole 61 is provided on the mounting seat 6. A second through hole 121 corresponding to and coaxial with the limiting hole 61 is provided on the second supporting plate 12, and a threaded hole 132 corresponding to the second through hole 121 is provided on the third supporting plate 13; a connecting screw 7 is provided in the limiting hole 61, and the diameter of the screw portion of the connecting screw 7 is respectively adapted to the aperture of the second through hole 121 and the threaded hole 132, and is screwed to the threaded hole 132, and the head diameter of the connecting screw 7 is adapted to the aperture of the limiting hole 61.

[0050] Specifically, in order to realize the movable connection between the second support plate 12 and the third support plate 13, in the technical solution adopted by the present invention, mounting seats 6 can be respectively provided on both sides of the second support plate 12 in the second direction y, and the mounting seats 6 can be a cubic structure, and its size in the second direction y can be adapted to the size of the second support plate 12 in this direction, and a longitudinally z-through limiting hole 61 can be provided in the middle of the mounting seat 6 in the second direction y, and a second through hole 121 corresponding to and coaxial with the limiting hole 61 is correspondingly provided on the second support plate 12, and a threaded hole 121 corresponding to and adapted to the second through hole 121 is provided on the third support plate 13 32; the setting of the limiting hole 61, the second through hole 121 and the threaded hole 132 is used to install the connecting screw 7, the connecting screw 7 includes a head and a screw portion with a thread on the outer peripheral surface, the diameter of the screw portion of the connecting screw 7 is respectively adapted to the apertures of the second through hole 121 and the threaded hole 132, and the screw portion can be threadedly connected to the threaded hole 132, and the head diameter of the connecting screw 7 is adapted to the aperture of the limiting hole 61; when the longitudinal z relative movement occurs between the second support plate 12 and the third support plate 13, the head of the connecting screw 7 can move in the limiting hole 61, and the limiting hole 61 can limit the movement trajectory of the head of the connecting screw 7.

[0051] Reference Figure 1 -Attached Figure 3In a specific implementation, at least one second guide rod 8 is respectively arranged on both sides of the third support plate 13 in the first direction x, and the second guide rod 8 is movably passed through the second support plate 12 and the mounting seat 6, and the mounting seat 6 is provided with a second linear bearing 9 which corresponds to and is matched with each second guide rod 8 one by one.

[0052] Specifically, in order to improve the trajectory accuracy and transmission efficiency of the relative movement between the third support plate 13 and the second support plate 12, in the technical solution adopted by the present invention, at least one second guide rod 8 can be respectively arranged on both sides of the third support plate 13 in the first direction x. Taking the arrangement of two second guide rods 8 on both sides of the third support plate 13 as an example, the two second guide rods 8 can be symmetrically arranged on both sides of the limiting hole 61 in the second direction y; the cross-sectional shape of the second guide rod 8 is circular and extends along the longitudinal direction z, each second guide rod 8 is movable through the second support plate 12 and the mounting seat 6, and the mounting seat 6 is provided with a second linear bearing 9 which corresponds to and is matingly connected to each second guide rod 8 one by one, and the second guide rod 8 cooperates with the second linear bearing 9 to achieve precise guiding and efficient transmission.

[0053] Reference Figure 1 -Attached Figure 3 In a specific implementation, a spring 10 is sleeved on the outer portion of the second guide rod 8 located between the second support plate 12 and the third support plate 13 .

[0054] Specifically, in order to ensure that the third support plate 13 can fully fit with the pressure plate of the frame during punching operations, in the technical solution adopted by the present invention, a spring 10 can be sleeved on the outside of the part of the second guide rod 8 located between the second support plate 12 and the third support plate 13. When the third support plate 13 is in contact and fit with the pressure plate of the frame and the telescopic end 21 drives the second support plate 12 to continue to move downward, the elastic force generated by the compression of the spring 10 can press the third support plate 13 more tightly against the pressure plate, so that the two are in full contact, and the membrane material on the pressure plate can be pressed and held more flat, which is beneficial to improving the efficiency and accuracy of punching.

[0055] Reference Figure 1 -Attached Figure 3 In a specific implementation, a surface of the first support plate 11 facing away from the second support plate 12 is provided with a plurality of support columns 112 extending along the longitudinal direction z for connection with the frame.

[0056] Specifically, in order to achieve the connection between the first support plate 11 and the frame, in the technical solution adopted by the present invention, a plurality of support columns 112 can be arranged on the first support plate 11, and the support columns 112 extend along the longitudinal direction z. The number of the support columns 112 can be but is not limited to four, and they are evenly arranged on the first support plate 11 in an array distribution manner. The upper ends of the support columns 112 are fixedly connected to the frame, and the lower ends are fixed to the first support plate 11; wherein the support columns 112 can also be arranged as a column structure with adjustable length, which is not specifically limited here.

[0057] It should be noted that the first direction x mentioned above is Figure 1 -Attached Figure 3 The one-way arrow x indicates the direction and its opposite direction, the second direction y indicates the direction indicated by the one-way arrow y and its opposite direction, and the longitudinal direction z indicates the direction indicated by the one-way arrow z and its opposite direction.

[0058] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0059] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A punching device, characterized in that: include: A first support plate (11), a second support plate (12) and a third support plate (13) are sequentially arranged in a longitudinal direction (z) from top to bottom, wherein the first support plate (11) is mounted on a frame, the second support plate (12) is connected to the first support plate (11) and can reciprocate relative to the first support plate (11) along the longitudinal direction (z), and the second support plate (12) is connected to the third support plate (13) and can reciprocate relative to the third support plate (13) along the longitudinal direction (z); A driving mechanism (2) is mounted on the first supporting plate (11), and the first supporting plate (11) is provided with a first through hole (111) for the telescopic end (21) of the driving mechanism (2) to pass through, and the telescopic end (21) passes through the first through hole (111) and is connected to the second supporting plate (12); and The cutter assembly is mounted on the surface of the second support plate (12) facing the third support plate (13), and the third support plate (13) is provided with a punching slot (131) for the cutter assembly to pass through.

2. The punching device according to claim 1, characterized in that: The cutter assembly comprises: a plurality of cutter bodies (3) arranged along the first direction (x), the blade (31) of each cutter body (3) forming an angle with a horizontal plane, wherein the angle is an acute angle.

3. The punching device according to claim 2, characterized in that: Two edges of the cutter body (3) facing each other in the first direction (x) are respectively provided with overlapping inclined surfaces, so that adjacent cutter bodies (3) are partially overlapped in the second direction (y) through the overlapping inclined surfaces; The second direction (y) is the thickness direction of the cutter body (3), and the first direction (x) and the second direction (y) are perpendicular to each other and are respectively perpendicular to the longitudinal direction (z).

4. The punching device according to claim 1, characterized in that: The second support plate (12) is provided with a plurality of first guide rods (4) extending in the longitudinal direction (z), the first guide rods (4) respectively and movably pass through the first support plate (11), and the first support plate (11) is provided with first linear bearings (5) corresponding to and matingly connected with the plurality of first guide rods (4) one by one.

5. The punching device according to claim 1, characterized in that: The second supporting plate (12) is provided with mounting seats (6) on both sides in the first direction (x), the mounting seats (6) are provided with a limiting hole (61), the second supporting plate (12) is provided with a second through hole (121) corresponding to and coaxial with the limiting hole (61), and the third supporting plate (13) is provided with a threaded hole (132) corresponding to the second through hole (121); A connecting screw (7) is arranged in the limiting hole (61), the diameter of the screw portion of the connecting screw (7) is respectively adapted to the hole diameters of the second through hole (121) and the threaded hole (132), and is threadedly connected to the threaded hole (132), and the head diameter of the connecting screw (7) is adapted to the hole diameter of the limiting hole (61).

6. The punching device according to claim 5, characterized in that: At least one second guide rod (8) is respectively arranged on both sides of the third support plate (13) in the first direction (x); the second guide rod (8) movably passes through the second support plate (12) and the mounting seat (6); and the mounting seat (6) is provided with a second linear bearing (9) corresponding to and matingly connected with each second guide rod (8) one by one.

7. The punching device according to claim 6, characterized in that: A spring (10) is sleeved on the exterior of a portion of the second guide rod (8) located between the second support plate (12) and the third support plate (13).

8. The punching device according to claim 2, characterized in that: The single-side gap between the cutter body (3) and the punching slit (131) in the second direction (y) is not less than 0.1 mm and not more than 0.2 mm.

9. The punching device according to claim 2, characterized in that: The cutter body (3) is detachably connected to the second supporting plate (12).

10. The punching device according to claim 1, characterized in that: A surface of the first supporting plate (11) facing away from the second supporting plate (12) is provided with a plurality of supporting columns (112) extending in the longitudinal direction (z) for connecting with the frame.

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