Special punching machine for automobile decoration strip and using method of special punching machine

Abstract

The invention discloses a special punching machine for an automobile decorative strip and a using method thereof.The special punching machine comprises a workbench, a die frame is fixedly arranged above the workbench, a first punching station and a second punching station are detachably arranged in the die frame, and a driving device is arranged at the top of the die frame; the movable end of the driving device extends into the mold frame and is connected with a connecting plate, and two vertically-arranged pressing blocks are installed on the lower side of the connecting plate side by side. The first punching station comprises a first bottom plate arranged in the die frame containing cavity, a first positioning block is arranged on the upper side of the first bottom plate, multiple sections of positioning protrusions are arranged in the middle of the upper side of the first positioning block, a first punching block is arranged between every two adjacent positioning protrusions, second punching blocks are arranged on the two sides of each first punching block, and the second punching blocks are arranged on the upper side of the first bottom plate. And a connecting block is fixedly arranged at the bottom of the first punching block. The punching device realizes low-cost, high-efficiency, safe and reliable punching operation, and is easy to operate and maintain.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive part processing equipment, and particularly to a special punching machine for automotive decorative strips and its usage method. Background Art

[0002] During the processing of automotive decorative strips, punching is an important process. Traditional punching processes mostly use punching presses. Punching presses have high costs and require supporting hydraulic stations or air source systems. Small and medium-sized enterprises have high procurement and maintenance costs, and punching presses need to be installed on fixed foundations. In order to improve punching efficiency, reduce costs, and ensure operation safety, a new type of special punching machine for automotive decorative strips is designed. Summary of the Invention

[0003] The present invention provides a special punching machine for automotive decorative strips and its usage method, realizing low-cost, high-efficiency, safe and reliable punching operations, which are easy to operate and maintain.

[0004] To achieve the above object, in the first aspect, the present invention provides the following technical solution: A special punching machine for automotive decorative strips includes a workbench. Above the workbench, a die holder is fixedly arranged. Inside the die holder, a first punching station and a second punching station are detachably arranged. At the top of the die holder, a driving device is arranged. The movable end of the driving device extends into the die holder and is connected to a connecting plate. On the lower side of the connecting plate, two vertically arranged pressing blocks are arranged side by side. The first punching station includes a first bottom plate arranged in the accommodating cavity of the die holder. On the upper side of the first bottom plate, a first positioning block is arranged. In the middle of the upper side of the first positioning block, multiple positioning protrusions are arranged along the feeding direction of the decorative strip. Between adjacent positioning protrusions, a liftable first punching block is arranged. On both sides of the upper part of the first punching block, knife blocks are symmetrically arranged. On both sides of the first punching block, corresponding second punching blocks are arranged. The second punching blocks are fixedly connected to the first positioning block. On the side of the second punching block, a cutting knife groove adapted to the knife block is arranged. At the bottom of the first punching block, a connecting block is fixedly arranged. At the bottom of the connecting block, a spring is arranged. When the pressing block descends, it drives the connecting block and the first punching block to act to punch the decorative strip. The second punching station includes a second bottom plate arranged on one side of the first bottom plate. On the upper side of the second bottom plate, a second positioning block, a first limiting block, a second limiting block, and a fixing plate are arranged in sequence. In the middle of the fixing plate, a sliding seat is arranged in a liftable manner. The sliding seat is vertically arranged and slidably connected to the fixing plate. A third punching block is horizontally clamped on the sliding seat. The third punching block is in a T shape. On the first limiting block, the second limiting block, and the fixing plate, notches adapted to the shape of the third punching block are arranged. The driving device drives the connecting plate to act, enabling efficient and precise punching of automotive decorative strips and improving production efficiency.

[0005] Preferably, on one side of the workbench, there are a first auxiliary support block and a second auxiliary support block corresponding to the first punching station and the second punching station respectively. The first auxiliary support block and the second auxiliary support block are both connected to the workbench through mounting brackets. The first auxiliary support block and the second auxiliary support block are used to support the decorative strip. In the middle of the workbench and below the mold base, there is a material receiving box. At the four corners of the bottom of the workbench, there are moving wheels. On one side of the moving wheels, there are supporting feet. The moving wheels facilitate the movement of the equipment, and the supporting feet facilitate fixation.

[0006] Preferably, guide posts are arranged at the four corners of the connecting plate, and the guide posts are slidably connected to the top of the mold base. The connecting plate is slidably matched with the mold base.

[0007] Preferably, on one side of the workbench, there is a support frame, and at the top of the support frame, there is a support part for supporting the decorative strip, which is used to assist in supporting the automotive decorative strip to be processed.

[0008] Preferably, on both sides of the positioning protrusion, there are a plurality of first guiding rollers, and on the upper side of the positioning protrusion, there is a second guiding roller, and the second guiding roller is adjustable along the feeding direction of the decorative strip.

[0009] Preferably, the first guiding roller is connected to the first positioning block through a first mounting block. The first mounting block is L-shaped, and at one end of the first mounting block away from the positioning protrusion, there is a long strip-shaped slot, and the long strip-shaped slot is used to adjust the position of the first guiding roller.

[0010] Preferably, on one side of the first positioning block, there is a mounting plate, and at the upper end of the mounting plate, there is a first stop block and a first sensor. The first stop block is adjustable along the feeding direction of the decorative strip. On the other side of the first positioning block, there is a guiding part, and the front end of the guiding part is in a conical structure. The first stop block limits the first decorative strip, and the guiding part further supports the first decorative strip and guides the first decorative strip into the first punching station.

[0011] Preferably, on the upper side of the sliding seat, there is a punching column. On both sides of the sliding seat and above the fixed plate, there are clamping blocks. The sliding seat and the punching column drive the sliding seat to descend under the action of the driving device, and the clamping blocks limit the sliding seat.

[0012] Preferably, on the side of the second positioning block, there are a second sensor and a second stop block. The second stop block is adjustable along the feeding direction of the decorative strip. On the upper side of the second positioning block and on one side of the first limiting block, there is a third stop block. The second stop block and the third stop block limit the second decorative strip.

[0013] Second, the present invention also provides a use method of the special punching machine for automotive decorative strips according to the first aspect, including the following steps:

[0014] S1: The operator places one end of the first decorative strip on the support part, and the other end of the first decorative strip on the first auxiliary support block. The operator slowly pushes the first decorative strip along the guiding part and the positioning protrusion into the first punching station until the first decorative strip touches the first stop block.

[0015] S2: The operator places one end of the second decorative strip on the support part, and the other end of the second decorative strip on the second auxiliary support block. The second decorative strip is slowly pushed into the second punching station along the placement groove formed between the first limiting block, the second limiting block and the third stop block until it touches the second stop block.

[0016] S3: Press the start button. The first sensor and the second sensor sense the first decorative strip and the second decorative strip, and the driving device operates. Its movable end descends, and the connecting plate drives the guide pillar to slide and cooperate with the die holder.

[0017] S4: In the first punching station, the pressing block at the bottom of the connecting plate contacts the connecting block, and the pressing block continues to press down. The connecting block drives the first punching block to move downward. The first punching block and the second punching block cooperate to punch the first decorative strip. Corresponding blanking grooves one are provided on both the first punching block and the workbench. The punched waste enters the receiving box.

[0018] S5: In the second punching station, the connecting plate contacts the punching column and drives the punching column to press down. The sliding seat at the bottom of the punching column drives the third punching block to move downward. The end of the third punching block punches the second decorative strip. Corresponding blanking grooves two are provided on both the die holder at the bottom of the third punching block and the workbench. The cut waste enters the receiving box.

[0019] S6: After punching is completed, the driving device resets, and the components below it move upward. The connecting block and the sliding seat reset under the action of the spring. Remove the punched decorative strip and proceed to the next process.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The structure is simple and the operation is convenient. Compared with the traditional punching press, this special machine adopts modular design, and the punching fixture in the die holder can be replaced, with lower manufacturing cost. Through the guiding design of the guide pillar, the accuracy of the punching process is ensured, the qualified rate of the product is improved, the decorative strip is accurately positioned, ensuring that the punching quality of each product is consistent, reducing human errors. The bottom of the equipment is equipped with moving wheels, which is convenient for moving between different production sites, improving the flexibility of the equipment. It realizes low-cost, high-efficiency, safe and reliable punching operations, which is conducive to operation and maintenance. Description of the Drawings

[0022] Figure 1 It is a three-dimensional structure diagram of the present invention;

[0023] Figure 2Structural schematic diagram of the workbench of the present invention;

[0024] Figure 3 Cross-sectional structural schematic diagram of the workbench of the present invention;

[0025] Figure 4 Three-dimensional structure diagram of the first punching station of the present invention;

[0026] Figure 5 Cross-sectional structural schematic diagram of the first punching station of the present invention;

[0027] Figure 6 Three-dimensional structure diagram of the second punching station of the present invention;

[0028] Figure 7 Cross-sectional structural schematic diagram of the second punching station of the present invention.

[0029] Reference numerals:

[0030] 1, workbench; 2, die holder; 3, first punching station; 30, guiding part; 300, first bottom plate; 31, first positioning block; 32, positioning protrusion; 33, first punching block; 331, cutting block; 34, second punching block; 341, cutting knife groove; 35, connecting block; 361, first guiding roller; 362, second guiding roller; 363, first mounting block; 364, long strip-shaped slot; 37, mounting plate; 38, first stop block; 39, first sensor; 4, second punching station; 400, second bottom plate; 40, second sensor; 41, second positioning block; 42, first limiting block; 43, second limiting block; 44, fixing plate; 45, sliding seat; 46, third punching block; 47, punching column; 48, clamping block; 49, third stop block; 50, second stop block; 5, driving device; 6, connecting plate; 7, pressing block; 8, support frame; 9, supporting part; 101, first auxiliary supporting block; 102, second auxiliary supporting block; 11, mounting bracket; 12, guide post; 13, material receiving box; 14, transfer wheel; 15, spring; 16, support leg. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] As Figure 1-7As shown in the figure, the present invention realizes low-cost, high-efficiency, safe and reliable punching operations, which are easy to operate and maintain. The following technical solutions are provided: A special punching machine for automotive decorative strips includes a workbench 1. The workbench 1 serves as the equipment's basic platform and is welded by square tubes and flat plates. Lifting rings are provided at the four corners of the flat plate. Above the workbench 1, a die holder 2 is fixedly provided. A first punching station 3 and a second punching station 4 are detachably arranged in the die holder 2. A driving device 5 is arranged at the top of the die holder 2. The driving device 5 uses an electric cylinder. The movable end of the driving device 5 extends into the die holder 2 and is connected to a connecting plate 6. Two vertically arranged pressing blocks 7 are arranged side by side on the lower side of the connecting plate 6. The pressing blocks 7 are in the shape of an inverted U. The first punching station 3 includes a first bottom plate 300 arranged in the accommodating cavity of the die holder 2. A first positioning block 31 is arranged on the upper side of the first bottom plate 300. Multiple positioning protrusions 32 are arranged in the middle of the upper side of the first positioning block 31 along the feeding direction of the decorative strip. The shape of the positioning protrusions 32 matches the shape of the first decorative strip. An elevating first punching block 33 is arranged between adjacent positioning protrusions 32. Knife blocks 331 are symmetrically arranged on both sides of the upper part of the first punching block 33. Second punching blocks 34 are correspondingly arranged on both sides of the first punching block 33. The second punching blocks 34 are fixedly connected to the first positioning block 31. A cutting knife groove 341 adapted to the knife block 331 is arranged on the side of the second punching block 34. A connecting block 35 is fixedly arranged at the bottom of the first punching block 33. A spring 15 is arranged at the bottom of the connecting block 35 for the reset of the connecting block 35. When the pressing block 7 descends, it drives the connecting block 35 and the first punching block 33 to act on the decorative strip for punching. The second punching station 4 includes a second bottom plate 400 arranged on one side of the first bottom plate 300. A second positioning block 41, a first limiting block 42, a second limiting block 43 and a fixing plate 44 are sequentially arranged on the upper side of the second bottom plate 400. A sliding seat 45 is arranged in the middle of the fixing plate 44 in a liftable manner. The sliding seat 45 is vertically arranged and slidably connected to the fixing plate 44. A third punching block 46 is horizontally clamped on the sliding seat 45. The third punching block 46 is in the shape of a T. Notches 421 adapted to the shape of the third punching block 46 are arranged on the first limiting block 42, the second limiting block 43 and the fixing plate 44. The driving device 5 drives the connecting plate 6 to act. The connecting plate 6 presses down to perform punching operations on the first punching station 3 and the second punching station 4, punching two products at one time, improving the production efficiency.

[0033] In this embodiment, as Figure 1 and Figure 2As shown, on one side of the workbench 1, there are a first auxiliary support block 101 and a second auxiliary support block 102 corresponding to the first punching station 3 and the second punching station 4 respectively. The first auxiliary support block 101 and the second auxiliary support block 102 are both connected to the workbench 1 through mounting brackets 11. The first auxiliary support block 101 and the second auxiliary support block 102 are used to support the decorative strip. In the middle of the workbench 1 and below the die carrier 2, there is a material receiving box 13. At the four corners of the bottom of the workbench 1, there are moving wheels 14. On one side of the moving wheels 14, there are supporting feet 16. The moving wheels 14 facilitate the movement of the equipment, and the supporting feet 16 facilitate fixation.

[0034] In this embodiment, as Figure 2 shown, guide posts 12 are provided at the four corners of the connecting plate 6. The guide posts 12 are slidably connected to the top of the die carrier 2, and the connecting plate is slidably matched with the die carrier.

[0035] In this embodiment, as Figure 1 shown, on one side of the workbench 1, there is a support frame 8. The support frame 8 is fixed by welding square tubes and steel plates. At the top of the support frame 8, there is a support portion 9 for supporting the decorative strip. The support portion 9 is arc-shaped and is used to assist in supporting the automotive decorative strip to be processed.

[0036] In this embodiment, as Figure 4 shown, on both sides of the positioning protrusion 32, there are a plurality of first guide rollers 361. The first guide rollers 361 are connected to the first positioning block 31 through first mounting blocks 363. The first mounting blocks 363 are L-shaped. At one end of the first mounting block 363 away from the positioning protrusion 32, there is a long strip-shaped slot 364. The long strip-shaped slot 364 is used to adjust the position of the first guide rollers 361. Above the positioning protrusion 32, there is a second guide roller 362. The second guide roller 362 is adjustable along the feeding direction of the decorative strip. The first guide rollers 361 and the second guide rollers 362 are arranged on the upper side and both sides of the first decorative strip, and are used to guide the movement of the first decorative strip and limit it. The positions of the first guide rollers 361 and the second guide rollers 362 are both adjustable.

[0037] In this embodiment, as Figure 4 and Figure 5 shown, on one side of the first positioning block 31, there is a mounting plate 37. At the upper end of the mounting plate 37, there is a first stop block 38 and a first sensor 39. The first stop block 38 is adjustable along the feeding direction of the decorative strip. On the other side of the first positioning block 31, there is a guiding portion 30. The front end of the guiding portion 30 is in a conical structure. The first stop block 38 limits the first decorative strip, and the guiding portion 30 further supports the first decorative strip and guides the first decorative strip into the first punching station 3.

[0038] In this embodiment, asFigure 6 and Figure 7 As shown, a stamping column 47 is provided on the upper side of the sliding seat 45, and clamping blocks 48 are provided on both sides of the sliding seat 45 on the upper side of the fixed plate 44. A spring 15 is provided at the bottom of the sliding seat 45. The stamping column 47 drives the sliding seat 45 to descend under the action of the driving device 5, and the clamping block 48 limits the sliding seat 45.

[0039] In this embodiment, if Figure 6 and Figure 7 As shown, a second sensor 40 and a second stop block 50 are provided on the side of the second positioning block 41, and the second stop block 50 is adjustable along the feeding direction of the decorative strip. A third stop block 49 is provided on the upper side of the second positioning block 41 and located on one side of the first limiting block 42. The second stop block 50 and the third stop block 49 limit the second decorative strip.

[0040] In this embodiment, the method of using the automobile trim punching machine of the present invention may include the following steps:

[0041] S1: The operator places one end of the decorative strip 1 on the support portion 9 and the other end of the decorative strip 1 on the first auxiliary support block 101. The operator slowly pushes the decorative strip 1 along the guide portion 30 and the positioning protrusion 32 into the first punching station 3 until the decorative strip 1 touches the first stopper 38;

[0042] S2: The operator places one end of the second decorative strip on the support portion 9, and the other end of the second decorative strip on the second auxiliary support block 102, and the second decorative strip is slowly pushed into the second punching station 4 along the placement groove formed between the first limit block 42, the second limit block 43 and the third stop block 49 until it touches the second stop block 50;

[0043] S3: Press the start button, the first sensor 39 and the second sensor 40 sense the decorative strip 1 and the decorative strip 2, the driving device 5 is activated, its movable end descends, and the connecting plate 6 drives the guide column 12 to slide with the mold frame 2;

[0044] S4: In the first punching station 3, the pressing block 7 at the bottom of the connecting plate 6 contacts the connecting block 35, and the pressing block 7 continues to press down, and the connecting block 35 drives the first punching block 33 to move downward, and the first punching block 33 cooperates with the second punching block 34 to punch the decorative strip 1, and the mold frame 2 and the workbench 2 at the bottom of the first punching block 33 are both provided with corresponding blanking grooves 1, and the punched waste enters the receiving box 13;

[0045] S5: In the second punching station 4, the connecting plate 6 contacts the punching column 47 and drives the punching column 47 to press downwards. The sliding seat 45 at the bottom of the punching column 47 drives the third punching block 46 to move downwards. The end of the third punching block 46 punches the second decorative strip. The die holder 2 and the workbench 2 located at the bottom of the third punching block 46 are both provided with corresponding blanking grooves II. The cut waste enters the receiving box 13;

[0046] S6: After punching is completed, the driving device 55 resets, and the components located below it move upwards. The connecting block 35 and the sliding seat 45 reset under the action of the spring 15. The punched decorative strip is taken off to perform the next process.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0049] In the present invention, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. A special punching machine for automotive trim strips, comprising a workbench (1), and a die carrier (2) is fixedly arranged above the workbench (1), characterized in that: A first punching station (3) and a second punching station (4) are detachably arranged in the die carrier (2). A driving device (5) is arranged at the top of the die carrier (2). The movable end of the driving device (5) extends into the die carrier (2) and is connected with a connecting plate (6). Two vertically arranged pressing blocks (7) are arranged side by side on the lower side of the connecting plate (6). The first punching station (3) includes a first bottom plate (300) arranged in the accommodating cavity of the die carrier (2). A first positioning block (31) is arranged on the upper side of the first bottom plate (300). A plurality of positioning protrusions (32) are arranged in the middle of the upper side of the first positioning block (31) along the feeding direction of the decorative strip. A liftable first punching block (33) is arranged between adjacent positioning protrusions (32). Knife blocks (331) are symmetrically arranged on both sides of the upper part of the first punching block (33). Second punching blocks (34) are correspondingly arranged on both sides of the first punching block (33). The second punching blocks (34) are fixedly connected with the first positioning block (31). A cutting knife groove (341) adapted to the knife block (331) is arranged on the side of the second punching block (34). A connecting block (35) is fixedly arranged at the bottom of the first punching block (33). A spring (15) is arranged at the bottom of the connecting block (35). When the pressing block (7) descends, it drives the connecting block (35) and the first punching block (33) to act to punch the decorative strip. The second punching station (4) includes a second bottom plate (400) arranged on one side of the first bottom plate (300). A second positioning block (41), a first limiting block (42), a second limiting block (43) and a fixing plate (44) are sequentially arranged on the upper side of the second bottom plate (400). A sliding seat (45) is arranged in the middle of the fixing plate (44) in a liftable manner. The sliding seat (45) is vertically arranged and is slidably connected with the fixing plate (44). A third punching block (46) is horizontally clamped on the sliding seat (45). The third punching block (46) is in a T shape. Notches (421) adapted to the shape of the third punching block (46) are arranged on the first limiting block (42), the second limiting block (43) and the fixing plate (44).

2. The special punching machine for automotive decorative strips according to claim 1, characterized in that: A first auxiliary support block (101) and a second auxiliary support block (102) corresponding to the first punching station (3) and the second punching station (4) are arranged on one side of the workbench (1). A material receiving box (13) is arranged on the workbench (1) below the die carrier (2). Moving wheels (14) are arranged at the four corners of the bottom of the workbench (1). A supporting leg (16) is arranged on one side of the moving wheel (14).

3. The special punching machine for automotive decorative strips according to claim 1, wherein: Guide posts (12) are arranged at the four corners of the connecting plate (6). The guide posts (12) are slidably connected with the top of the die carrier (2).

4. The special punching machine for automotive trim strips according to claim 1, wherein: A support frame (8) is arranged on one side of the workbench (1). A support part (9) for supporting the decorative strip is arranged at the top of the support frame (8).

5. The special punching machine for automotive decorative strips according to claim 1, wherein: On both sides of the positioning projection (32), a plurality of first guiding rollers (361) are provided. On the upper side of the positioning projection (32), a second guiding roller (362) is provided, and the second guiding roller (362) is adjustable along the feeding direction of the decorative strip.

6. The special punching machine for automotive trim strips according to claim 5, characterized in that: The first guiding roller (361) is connected to the first positioning block (31) through a first mounting block (363). The first mounting block (363) is L-shaped, and a long strip-shaped slot (364) is provided at one end of the first mounting block (363) away from the positioning projection (32).

7. The special punching machine for automotive trim strips according to claim 1, characterized in that: On one side of the first positioning block (31), a mounting plate (37) is provided. At the upper end of the mounting plate (37), a first stop block (38) and a first sensor (39) are provided. The first stop block (38) is adjustable along the feeding direction of the decorative strip. On the other side of the first positioning block (31), a guiding portion (30) is provided, and the front end of the guiding portion (30) is in a conical structure.

8. The special punching machine for automotive trim strips according to claim 1, characterized in that: On the upper side of the sliding seat (45), a punching column (47) is provided. On both sides of the sliding seat (45) and on the upper side of the fixing plate (44), clamping blocks (48) are provided. A spring (15) is provided at the bottom of the sliding seat (45).

9. The special punching machine for automotive trim strips according to claim 1, characterized in that: On the side of the second positioning block (41), a second sensor (40) and a second stop block (50) are provided. The second stop block (50) is adjustable along the feeding direction of the decorative strip. On the upper side of the second positioning block (41) and on one side of the first limiting block (42), a third stop block (49) is provided.

10. A method for using a special punching machine for automotive trim strips according to any one of claims 1-9, characterized in that, Including the following steps: S1: An operator places one end of the first decorative strip on the supporting portion (9), places the other end of the first decorative strip on the first auxiliary supporting block (101), and slowly pushes the first decorative strip along the guiding portion (30) and the positioning projection (32) into the first punching station (3) until the decorative strip touches the first stop block (38). S2: The operator places one end of the second decorative strip on the supporting portion (9), places the other end of the second decorative strip on the second auxiliary supporting block (102), and slowly pushes the second decorative strip along the placing groove formed between the first limiting block (42), the second limiting block (43), and the third stop block (49) into the second punching station (4) until it touches the second stop block (50). S3: Press the start button. The first sensor (39) and the second sensor (40) sense the first decorative strip and the second decorative strip, and the driving device (5) operates, and its movable end descends. The connecting plate (6) drives the guide post (12) to slide and cooperate with the mold base (2). S4: In the first punching station (3), the pressing block (7) at the bottom of the connecting plate (6) contacts the connecting block (35). The pressing block (7) continues to press down, and the connecting block (35) drives the first punching block (33) to move downward. The first punching block (33) cooperates with the second punching block (34) to punch the first decorative strip, and the punched waste enters the material receiving box (13). S5: In the second punching station (4), the connecting plate (6) contacts the punching column (47) and drives the punching column (47) to press downwards. The sliding seat (45) at the bottom of the punching column (47) drives the third punching block (46) to move downwards. The end of the third punching block 46 punches the second decorative strip, and the cut waste enters the material receiving box (13). S6: After punching is completed, the driving device (55) resets, and the components located below it move upwards. The connecting block (35) and the sliding seat (45) reset under the action of the spring (15). The punched decorative strip is taken off and the next process is carried out.

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