Punching module and film laminating equipment

Abstract

The present invention discloses a punching module and a film pasting device. The punching module comprises a machine base and a punching assembly. The machine base has a punching station and a tool preparation station and a support part preparation station which are arranged on both sides of the punching station along a first direction. The punching station is for placing a workpiece for pasting film. The punching assembly comprises a first tool and a support part. The first tool is located at the first tool preparation station, and the support part is located at the support part preparation station. The first tool is movably installed on the machine base along the first direction so that the first tool has a working position close to the mounting hole and abuts against the support part to complete the punching. The material of the support part is an elastic material. Under the pressure of the tool, the support part is recessed along the blade of the tool. The protective film is subjected to the elastic force of the support part and the pressure of the first tool. Under the joint action of the two forces, a complete mounting hole is cut out on the protective film. Since the support part is made of an elastic material, the first tool is in elastic contact with the support part, so as to avoid the first tool colliding with the support part and causing tool wear.

Description

Technical Field

[0001] The present invention relates to the field of film pasting technology, and in particular to a punching module and a film pasting device. Background Art

[0002] With the development of the electronics industry and the improvement of product quality, the demand for protective films for parts is also increasing. Since there are mounting holes on the workpiece, the existing tools have problems such as incomplete punching and tool wear when punching the protective film. Summary of the invention

[0003] The main purpose of the present invention is to provide a punching module and a film laminating device, aiming to solve the problems of incomplete punching and tool wear when the existing tool punches holes in the protective film.

[0004] To achieve the above object, the present invention provides a punching module for punching a protective film covering the workpiece mounting hole, the punching module comprising:

[0005] A machine base, comprising a punching station and a tool preparation station and a support part preparation station respectively arranged on both sides of the punching station along a first direction, wherein the punching station is used for placing a workpiece to be laminated; and

[0006] A punching assembly, comprising a first tool and a support portion, wherein the first tool is located at the first tool preparation station, the support portion is located at the support portion preparation station, and the first tool is movably mounted on the machine base along a first direction so that the first tool has a working position for approaching the mounting hole to abut against the support portion to complete the punching;

[0007] Wherein, the material of the supporting part is elastic material.

[0008] Optionally, the hardness of the material of the support portion is T, wherein 40HBW≤T≤45HBW.

[0009] Optionally, the material of the support portion includes urethane foam or silicone rubber.

[0010] Optionally, the punching assembly further comprises a first tool driving assembly, wherein the first tool driving assembly is mounted on the machine base and is used for driving the first tool to move from the first tool preparation station to the working position.

[0011] Optionally, the first tool drive assembly includes a first drive cylinder, a cylinder body of the first drive cylinder is installed on the machine base, a piston rod of the first drive cylinder has an active stroke along a first direction, and a free end of the piston rod is connected to the first tool drive.

[0012] Optionally, a reset member is further provided between the first tool and the machine base, and the reset member is used to reset the first tool from the working position to the first tool preparation position.

[0013] Optionally, the reset member includes a spring, one end of the spring is connected to the first tool, and the other end of the spring is connected to the machine base.

[0014] Optionally, the base comprises:

[0015] A fixed seat, having a driving station, the driving station is equipped with the driving assembly, and the driving end of the driving assembly has a movable stroke along a first direction;

[0016] A movable seat is rotatably mounted on the fixed seat, and the movable seat is provided with a plurality of the first tool preparation stations and a plurality of the punching stations corresponding to the plurality of the first tool preparation stations at intervals along the circumference of its rotation axis, each of the first tool preparation stations is provided with the first tool, and within the movable stroke of the movable seat, each of the first tool preparation stations has the function of moving to a driving preparation position corresponding to the driving station, and when in the driving preparation position, the driving end can push the first tool to move to the working position.

[0017] Optionally, the support portion is movably mounted on the base along a first direction;

[0018] The punching assembly further comprises a support portion driving assembly, wherein the support portion driving assembly is arranged between the support portion and the machine base and is used for driving the support portion to move.

[0019] Optionally, a guide structure is further provided between the support portion and the base, the guide structure comprising a slide groove extending along the first direction and a protrusion matched with the slide groove, the slide groove is provided on the base, and the protrusion is provided on the support portion.

[0020] Optionally, a waste collection component is further provided on the machine base, and the waste collection component is arranged corresponding to the support portion and / or the first tool to collect waste film cut during the punching process.

[0021] Optionally, the first tool and / or the support portion has a cutting surface for contacting with the protective film, and the cutting surface is provided with a material passing hole;

[0022] The waste material collection component comprises an adsorption chamber connected with the material passage port, and the adsorption chamber is used for adsorbing the waste film from the material passage port to the adsorption chamber.

[0023] Optionally, the punching module further includes a smoothing component, which is disposed on the machine base and is used to smooth the protective film on the workpiece.

[0024] Optionally, the smoothing component comprises:

[0025] A mounting frame, movably mounted on the machine base to have a straightening working position;

[0026] A roller is rotatably mounted on the mounting frame so as to be in rolling contact with the workpiece to be laminated when in the smoothing working position;

[0027] The flattening drive assembly is used to drive the mounting frame to move.

[0028] Optionally, the smoothing drive assembly includes a second drive cylinder.

[0029] Optionally, the working air pressure of the second driving cylinder is F, wherein 0.1 MPa≤F≤0.2 MPa.

[0030] Optionally, a gap is further provided on the workpiece, and a protective film is provided on the gap;

[0031] The punching module also includes a second tool, which is movably mounted on the machine base so that the second tool has a cutting working position for moving to the gap to cut the protective film.

[0032] To achieve the above object, the present invention proposes a punching module, including the punching module as described above, the punching module is used to punch a protective film covering the workpiece mounting hole, and the punching module includes:

[0033] A machine base, comprising a punching station and a tool preparation station and a support part preparation station respectively arranged on both sides of the punching station along a first direction, wherein the punching station is used for placing a workpiece to be laminated; and

[0034] A punching assembly, comprising a first tool and a support portion, wherein the first tool is located at the first tool preparation station, the support portion is located at the support portion preparation station, and the first tool is movably mounted on the machine base along a first direction so that the first tool has a working position for approaching the mounting hole to abut against the support portion to complete the punching;

[0035] Wherein, the material of the supporting part is elastic material.

[0036] In the technical solution of the present invention, when it is necessary to punch a protective film covering the mounting hole of the workpiece, the workpiece to be punched is placed in the punching station. Since the tool preparation station and the support part preparation station are respectively arranged on both sides of the punching station, and the first tool is located at the first tool preparation station, and the support part is located at the support part preparation station, the first tool and the support part are respectively located on both sides of the workpiece to be punched, and when the first tool moves to the working position along the first direction, since the material of the support part is an elastic material, under the pressure of the tool, the support part is recessed along the tool blade, and the protective film is subjected to the elastic force of the support part and the pressure of the first tool. Under the joint action of the two forces, a complete mounting hole can be cut out on the protective film. Since the support part is made of elastic material, the first tool is in elastic contact with the support part, thereby avoiding collision between the first tool and the support part to cause tool wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0038] Figure 1 A schematic diagram of the structure of the film sticking device provided by the present invention;

[0039] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the middle support part, the waste collection component and the smoothing component;

[0040] Figure 3 for Figure 2 Schematic diagram from top view;

[0041] Figure 4 for Figure 1 Structural schematic diagram of the middle movable seat;

[0042] Figure 5 A three-dimensional schematic diagram of an embodiment of a punching module film laminating device provided by the present invention;

[0043] Figure 6 It is a schematic diagram of the structure of the workpiece to be punched.

[0044] Description of Figure Numbers:

[0045]

[0046]

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0049] It should be noted that if a directional indication is involved in the embodiment of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] With the development of the electronics industry and the improvement of product quality, the demand for protective films for parts is also increasing. Since there are mounting holes on the workpiece, the existing tools have problems such as incomplete punching and tool wear when punching the protective film.

[0052] In view of this, the present invention provides a punching module and a film laminating device to solve the problems of incomplete punching and tool wear when the existing tool punches holes in the protective film. Figures 1 to 5 This is an embodiment of the film laminating equipment and punching module provided by the present invention.

[0053] Reference Figures 1 to 4 The punching die set 10 is used to cover the workpiece 1000 (refer to Figure 6) is used to punch a protective film of a mounting hole of the base 1, the punching module 10 comprises a machine base 1 and a punching assembly 2, the machine base 1 has a punching station and a tool preparation station and a support preparation station which are arranged on both sides of the punching station along a first direction, the punching station is used to place a workpiece 1000 with a film attached, the punching assembly 2 comprises a first tool 21 and a support 22, the first tool 21 is located at the first tool preparation station, the support 22 is located at the support preparation station, the first tool 21 is movably installed on the machine base 1 along the first direction, so that the first tool 21 has a working position for approaching the mounting hole until it abuts against the support 22 to complete the punching, wherein the material of the support 22 is an elastic material.

[0054] In the technical solution of the present invention, when it is necessary to punch the protective film covering the mounting hole of the workpiece 1000, the workpiece 1000 to be punched is placed in the punching station. Since the tool preparation station and the support part preparation station are respectively arranged on both sides of the punching station, and the first tool 21 is located at the first tool preparation station, and the support part 22 is located at the support part preparation station, the first tool 21 and the support part 22 are respectively located on both sides of the workpiece 1000 to be punched, and when the first tool 21 moves to the working position along the first direction, since the material of the support part 22 is an elastic material, under the pressure of the tool, the support part 22 is recessed along the tool blade, and the protective film is subjected to the elastic force of the support part 22 and the pressure of the first tool 21. Under the joint action of the two forces, a complete mounting hole can be cut out on the protective film. Since the support part 22 is made of elastic material, the first tool 21 is in elastic contact with the support part 22, thereby avoiding collision between the first tool 21 and the support part 22 to cause tool wear.

[0055] In order to achieve that when punching, the support portion 22 can both abut against the first tool 21 to complete the punching and avoid the first tool 21 causing damage to the support portion 22, therefore, the support portion 22 needs to meet a certain hardness. Specifically, in this embodiment, the hardness of the material of the support portion 22 is T, wherein 40HBW≤T≤45HBW. Within this range, the punching effect is best achieved by abutting the first tool 21 against the support portion 22, and the service life of the support portion 22 is also longer.

[0056] Specifically, there are many types of the elastic material, for example, the elastic material can be rubber, latex, etc. Specifically, in the embodiment of the present application, the elastic material includes elastomeric rubber and silicone rubber. When the material of the support part 22 is elastomeric rubber or silicone rubber, the punching effect is good when it abuts against the first tool 21, and the service life of the support part 22 is greatly improved.

[0057] There are many ways to drive the first tool 21 to move. For example, the first tool 21 can be driven manually to perform punching. Specifically, refer to Figure 1 , Figure 3 and Figure 4 In an embodiment of the present application, the punching assembly 2 also includes a first tool driving assembly 23, which is installed on the machine base 1. The first tool driving assembly 23 drives the first tool 21 to move from the first tool preparation station to the working position to achieve automatic punching. The operation is simple and reduces the burden on workers. Moreover, since the distance of the first tool 21 and the amount of force applied by the first tool driving assembly 23 can be precisely controlled, the punching effect is greatly improved.

[0058] The first tool driving assembly 23 for driving the first tool 21 to move may include a ball screw or a linear motor, etc. Specifically, the first tool driving assembly 23 includes a first driving cylinder 231, the cylinder body 2311 of the first driving cylinder 231 is installed on the machine base 1, the piston rod 2312 of the first driving cylinder 231 has an active stroke along the first direction, and the free end of the piston rod 2312 is drivingly connected to the first tool 21, so that when the piston rod 2312 is extended, the piston rod 2312 can drive the first tool 21 to move along the first direction, so that the first tool 21 abuts against the support part 22. Since the first driving cylinder 231 is a flexible mechanism, the first tool 21 and the support part 22 are flexibly abutted, which can not only realize punching but also prevent the first tool 21 from damaging the support part 22.

[0059] Considering that when the first tool 21 moves from the first tool preparation station to the working position, the first tool 21 needs to be reset from the working position to the first tool preparation station to facilitate the next punching operation, a reset member can be further provided between the first tool 21 and the machine base 1. Through the action of the reset member, the first tool 21 is reset from the working position to the first tool preparation station, providing an avoidance space, facilitating the installation of the workpiece 1000 to the punching station, and making the punching action continuous.

[0060] Specifically, the reset member includes a spring, one end of the spring is connected to the first tool 21, and the other end of the spring is connected to the machine base 1. When the spring moves from the first tool preparation station to the working position, the spring is deformed, and the elastic force of the spring causes the first tool 21 to be reset from the working position to the first tool preparation station. The structure is simple and the processing cost is reduced.

[0061] It should be noted that there are many types of the reset member, for example, the reset member can also be a rubber band, a cylinder, a linear motor, etc., and this application does not limit this.

[0062] Specifically, refer to Figure 2 , Figure 4 and Figure 5 The machine base 1 includes a fixed seat 1a and a movable seat 1b, the fixed seat 1a has a driving station, the driving station is equipped with the driving assembly 3, the driving end of the driving assembly 3 has a movable stroke along the first direction, the movable seat 1b is rotatably installed on the fixed seat 1a, and the movable seat 1b is provided with a plurality of the first tool preparation stations and a plurality of the punching stations corresponding to the plurality of the first tool preparation stations at intervals along the circumference of its rotation axis, each of the first tool preparation stations is provided with the first tool 21, and within the movable stroke of the movable seat 1b, each of the first tool preparation stations has the function of moving to a driving preparation position corresponding to the driving station, and when in the driving preparation position, the driving end can push the first tool 21 to move to The working position is arranged in this way. Since the plurality of punching stations are provided with workpieces 1000 to be punched, during the rotation of the movable seat 1b, each of the first tool preparation stations has the function of moving to a driving preparation position corresponding to the driving station. When in the driving preparation position, the driving end can push the first tool 21 to move to the working position, thereby completing the punching. When a workpiece 1000 is punched, the movable seat 1b rotates to move another first tool 21 to the driving preparation position. The first tool 21 is pushed by the driving end to perform punching, thereby saving the time for workpiece installation and improving the punching efficiency. The first tools 21 located at the driving preparation positions are respectively driven by a driving assembly 3, thereby saving costs.

[0063] In order to facilitate the installation of the workpiece 1000 to be punched, specifically, refer to Figure 2 and Figure 3 The support part 22 is movably installed on the machine base 1 along a first direction, and the punching assembly 2 also includes a support part driving assembly 4, which is arranged between the support part 22 and the machine base 1. The support part driving assembly 4 drives the support part 22 to move along the first direction away from the punching station, thereby providing an avoidance space for the installation of the workpiece 1000 to be punched, thereby avoiding interference between the support part 22 and the workpiece 1000 to be punched, and when the workpiece 1000 to be punched is installed, the support part 22 is driven by the support part driving assembly 4 to move toward the punching station to the working position, thereby completing the punching, which is simple to operate and has a good effect.

[0064] It should be noted that, refer to Figure 2 When the machine base 1 includes a fixed seat 1a and a movable seat 1b, and the support part 22 is movably installed on the fixed seat 1a, when the first tool 21 and the workpiece 1000 are both located on the movable seat 1b, the movement of the support part 22 can provide a clearance space for the rotation of the movable seat 1b, thereby avoiding interference between the movable seat 1b and the support part 22 during the rotation of the movable seat 1b.

[0065] Further, in order to enable the support portion 22 to move accurately along the first direction, refer to Figure 3 In the embodiment of the present application, a guide structure is further provided between the support portion 22 and the fixing seat 1a, and the guide structure includes a slide groove 41 extending along the first direction and a protrusion 42 adapted to the slide groove 41, the slide groove 41 is provided on the fixing seat 1a, and the protrusion 42 is provided on the support portion 22. Through the coordinated installation of the slide groove 41 and the protrusion 42, the support portion 22 can accurately move to the working position and the support portion preparation station along the first direction, thereby improving the punching effect.

[0066] In order to prevent the waste film generated by punching from scattering everywhere, a waste collection component 5 is also provided on the machine base 1. The waste collection component 5 is arranged corresponding to the support part 22 and / or the first tool 21. The waste film cut during the punching process is collected by the waste collection component 5, so that the waste film is gathered together to prevent the waste film from scattering everywhere. When the waste film is collected together, it is convenient for subsequent centralized processing, which improves the processing effect and reduces the work intensity of the workers.

[0067] Specifically, refer to Figure 2 In an embodiment of the present application, the first tool 21 and / or the supporting portion 22 has a cutting surface for contacting the protective film, and the cutting surface is provided with a feeding hole. The waste collection component 5 includes an adsorption chamber connected to the feeding port, and the adsorption chamber is used to adsorb the waste film from the feeding port to the adsorption chamber, so that the waste film is gathered in the adsorption chamber. When the collected waste film needs to be processed, it is only necessary to take out the waste film from the adsorption chamber for centralized processing, which is simple to operate.

[0068] Since the protective film on the surrounding side of the mounting hole may be separated from the workpiece 1000 when punching, in order to solve this problem, the punching module 10 also includes a smoothing component 6, and the smoothing component 6 is arranged on the machine base 1. The protective film on the workpiece 1000 is smoothed by the smoothing component 6, so that the protective film and the workpiece 1000 are well fitted.

[0069] Specifically, refer to Figure 2The smoothing component 6 includes a mounting frame 61, a roller 62 and a smoothing drive component 63. The mounting frame 61 is movably mounted on the machine base 1 to have a smoothing working position. The roller 62 is rollingly mounted on the mounting frame 61. When the protective film needs to be smoothed, the mounting frame 61 is driven to move by the smoothing drive component 63, so that the mounting frame 61 moves to the smoothing working position, so that the roller 62 and the workpiece 1000 to be laminated are rolled and bonded, so that the protective film is bonded to the workpiece 1000 under the rolling and pressing action of the rolling, and the bonded protective film can be smoothed.

[0070] There are many types of the smoothing drive assembly 63 that drives the mounting frame 61 to move, for example, it can include a ball screw, a linear motor, etc. Specifically, refer to Figure 2 In an embodiment of the present application, the smoothing drive assembly 63 includes a second drive cylinder 631. Since the second drive cylinder 631 is a flexible mechanism, the mounting frame 61 is driven to move by the second drive cylinder 631. The second drive cylinder 631 can be used to achieve uniform elastic force, so that the roller 62 and the workpiece 1000 with the film attached are flexibly abutted against each other, thereby preventing the workpiece 1000 from being crushed or the protective film from being torn during the rolling of the roller 62.

[0071] In order to enable the second driving cylinder 631 to drive the roller 62 to flexibly abut against the film-attached workpiece 1000, the working air pressure of the second driving cylinder 631 is F, and the working air pressure satisfies 0.1MPa≤F≤0.2MPa. Within this range, the smoothing component 6 works best.

[0072] Since the workpiece 1000 is also provided with a gap, a protective film is provided on the gap. Figure 3 The punching module 10 also includes a second tool 7, which is movably mounted on the machine base so that the second tool 7 has a cutting working position for moving to the gap to cut the protective film. When the second tool 7 moves to the cutting working position, the protective film covering the workpiece 1000 at the gap can be cut, which is simple to operate and has good effect.

[0073] The present invention also provides a film laminating device 100, including the above-mentioned punching module 10. The film laminating device 100 includes all the technical features of the above-mentioned punching module 10, and therefore also has the technical effects brought by all the above-mentioned technical features, which will not be described one by one here.

[0074] Specifically, refer to Figure 2 , Figure 3 and Figure 6The base 1 includes a fixed base 1a and a movable base 1b. The fixed base 1a is provided with the punching station. The fixed base 1a is also provided with a loading station, a film pasting station and a cutting station. The movable base 1b is rotatably mounted on the fixed base 1a to switch between the loading station, the film pasting station, the punching station and the cutting station. The film pasting equipment 100 also includes a loading mechanism, a film pasting module 30 and a cutting module 40. When the movable base 1b is switched to the loading station, the loading mechanism provided at the loading station is used to load the workpiece 1000 to be pasted with film. The movable seat 1b is then switched to the film pasting station, and the film pasting module 30 arranged at the film pasting station is used to paste film on the workpiece 1000. After the film pasting is completed, the movable seat 1b continues to switch to the punching station, and the punching module 10 arranged at the punching station is used to punch the protective film covering the mounting hole of the workpiece 1000. After the punching is completed, the movable seat 1b continues to switch to the cutting station, and the cutting module 40 arranged at the cutting station is used to cut the punched workpiece 1000, thereby realizing automated film pasting and improving the efficiency of film pasting.

[0075] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A punching module for punching a protective film covering a workpiece mounting hole, characterized in that: The punching die set comprises: A machine base, comprising a punching station and a tool preparation station and a support part preparation station respectively arranged on both sides of the punching station along a first direction, wherein the punching station is used for placing a workpiece to be laminated; and A punching assembly, comprising a first tool and a support portion, wherein the first tool is located at a first tool preparation station, the support portion is located at the support portion preparation station, and the first tool is movably mounted on the machine base along a first direction so that the first tool has a working position for approaching the mounting hole to abut against the support portion to complete the punching; Wherein, the material of the support part is elastic material; The support portion is movably mounted on the base along a first direction; The punching assembly further comprises a support driving assembly, wherein the support driving assembly is disposed between the support and the base and is used to drive the support to move; The punching assembly further comprises a first tool driving assembly, which is mounted on the machine base and is used to drive the first tool to move from the first tool preparation station to the working position; The base comprises: A fixed seat, having a driving station, the driving station is equipped with the driving assembly, and the driving end of the driving assembly has a movable stroke along a first direction; A movable seat is rotatably mounted on the fixed seat, and the movable seat is provided with a plurality of the first tool preparation stations and a plurality of the punching stations corresponding to the plurality of the first tool preparation stations at intervals along the circumference of its rotation axis, each of the first tool preparation stations is provided with the first tool, and within the movable stroke of the movable seat, each of the first tool preparation stations has the function of moving to a driving preparation position corresponding to the driving station, and when in the driving preparation position, the driving end of the first tool driving assembly can push the first tool to move to the working position; the supporting part is movably mounted on the fixed seat, and the first tool and the workpiece are both located on the movable seat.

2. The punching die set according to claim 1, characterized in that: The hardness of the material of the support portion is T, wherein 40HBW≤T≤45HBW.

3. The punching die set according to claim 1, characterized in that: The material of the support portion includes urethane foam or silicone rubber.

4. The punching die set according to claim 1, characterized in that: The first tool driving assembly includes a first driving cylinder, a cylinder body of the first driving cylinder is installed on the machine base, a piston rod of the first driving cylinder has a movable stroke along a first direction, and a free end of the piston rod is drivingly connected to the first tool.

5. The punching die set according to claim 1, characterized in that: A reset member is further provided between the first tool and the machine base, and the reset member is used to reset the first tool from the working position to the first tool preparation position.

6. The punching die set according to claim 5, characterized in that: The reset member comprises a spring, one end of the spring is connected to the first tool, and the other end of the spring is connected to the machine base.

7. The punching die set according to claim 1, characterized in that: A guide structure is further provided between the support portion and the base, and the guide structure comprises a slide groove extending along the first direction and a protrusion matched with the slide groove, the slide groove is provided on the base, and the protrusion is provided on the support portion.

8. The punching die set according to claim 1, characterized in that: The machine base is also provided with a waste collection assembly, which is arranged corresponding to the support portion and / or the first tool to collect waste films cut during the punching process.

9. The punching die set according to claim 8, characterized in that: The first tool and / or the support portion has a cutting surface for contacting with the protective film, and the cutting surface is provided with a material passing hole; The waste material collection component comprises an adsorption chamber connected with the material passage port, and the adsorption chamber is used for adsorbing the waste film from the material passage port to the adsorption chamber.

10. The punching die set according to claim 1, characterized in that: The punching module also includes a smoothing component, which is arranged on the machine base and is used to smooth the protective film on the workpiece.

11. The punching die set according to claim 10, characterized in that: The smoothing component comprises: A mounting frame, movably mounted on the machine base to have a straightening working position; A roller is rotatably mounted on the mounting frame so as to be in rolling contact with the workpiece to be laminated when in the smoothing working position; The flattening drive assembly is used to drive the mounting frame to move.

12. The punching die set according to claim 11, characterized in that: The smoothing drive assembly includes a second drive cylinder.

13. The punching die set according to claim 12, characterized in that: The working air pressure of the second driving cylinder is F, wherein 0.1 MPa≤F≤0.2 MPa.

14. The punching die set according to claim 1, characterized in that: The workpiece is also provided with a gap, and the gap is covered with a protective film; The punching module also includes a second tool, which is movably mounted on the machine base so that the second tool has a cutting working position for moving to the gap to cut the protective film.

15. A film sticking device, characterized in that: It comprises a punching die set as described in any one of claims 1 to 14.

16. The film sticking device according to claim 15, characterized in that: The machine base includes a fixed seat and a movable seat, the fixed seat is provided with the punching station, the fixed seat is also provided with a loading station, a film pasting station and a cutting station, the loading station is used to feed materials to the movable seat, and the movable seat is rotatably mounted on the fixed seat to switch between the loading station, the film pasting station, the punching station and the cutting station; The film sticking equipment also includes: A film pasting module is arranged at the film pasting station, and the film pasting module is used to apply film to the workpiece; and The cutting module is arranged at the cutting station, and is used for cutting the workpiece after punching.

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