Quick die switching device

Abstract

The utility model discloses a rapid die-cutting switching device, relates to the related field of die-cutting machines, and aims to solve the problems that in the prior art, two groups of circular knife structures and matched driving structures need to be arranged, the whole structure is large in occupied space, and when one group of structures works, the other group of structures is in an idle state, and the working efficiency is low. Namely, a large number of driving structures are in an idle state, and driving force of the structures is wasted. A die-cutting circular knife is arranged in the middle of the exterior of the middle rotating shaft, an outer limiting connecting sleeve is fixed to one side of the die-cutting circular knife along the exterior of the middle rotating shaft, an outer connecting sliding sleeve is rotationally connected to the exterior of the outer limiting connecting sleeve through a bearing, and a connecting vertical rod is fixed to the upper end of the outer connecting sliding sleeve; and a driving rotating roller is rotationally connected between the first L-shaped mounting frame and the second L-shaped mounting frame along the upper end of the middle rotating shaft through a bearing, an outer spiral groove is spirally formed in the outer surface of the driving rotating roller, and the upper end of the connecting vertical rod extends into the outer spiral groove.

Description

Technical Field

[0001] The utility model relates to the field of die-cutting machines, and specifically relates to a fast die-cutting position-switching device. Background Technique

[0002] The die-cutting process is one of the most commonly used processes in packaging and printing. Using the die-cutting knife of a die-cutting machine to form a die-cutting plate according to the pattern required by the product design, under the action of pressure, the printing or other circular blanks are rolled and cut into the required shapes.

[0003] The die-cutting machine is a key device for the post-press processing of printed packaging products, and is an efficient, safe, and high-quality die-forming device. It is mainly used for die-cutting processing of some non-metallic materials such as self-adhesive labels, EVA, double-sided tape, electronics, mobile phone gaskets, etc. The die-cutting machine usually uses cutting knives, hardware molds, steel wires (or templates engraved from steel plates) to continuously die-cut the processed materials, and can also apply a certain pressure through the impression plate during the die-cutting process to roll and cut the printed matter or cardboard into a certain shape.

[0004] For example, the Chinese authorized patent with the publication number CN 219466328 U (a combined round knife machine) includes a linkage flipping support plate, and two upper concave ring support plates are welded on the upper surface of the linkage flipping support plate, and a switching mechanism is welded on the lower surface of the linkage flipping support plate; the switching mechanism includes two lower concave ring support plates welded on the lower surface of the linkage flipping support plate, and rotating shaft rods are arranged on both sides of the linkage flipping support plate. By setting the switching mechanism in the utility model, the rotating cap is rotated by 180 degrees, the rotating cap drives the rotating shaft rod to rotate 180 degrees inside the ring bearing plate, the linkage flipping support plate drives the upper concave ring support plate and the lower concave ring support plate to rotate, and the two vertical rolling round knives and the two horizontal rolling round knives on the lower concave ring support plate can be rotated up, and the upper group and the lower group can be switched and then continue production. After the production is completed, the damaged round knife machine can be repaired to avoid affecting the production efficiency.

[0005] Although the above-mentioned prior art has the function of fast position-switching in order not to affect production, two sets of round knife structures and supporting drive structures need to be set, the whole structure occupies a large space, and when one set of structures is working, the other set of structures is in an idle state, that is, a large number of drive structures are in an idle state, resulting in waste of structural driving force. Content of the Utility Model

[0006] The purpose of the utility model is to provide a fast die-cutting position-switching device to solve the problems raised in the above background technique, that is, two sets of round knife structures and supporting drive structures need to be set, the whole structure occupies a large space, and when one set of structures is working, the other set of structures is in an idle state, that is, a large number of drive structures are in an idle state, resulting in waste of structural driving force.

[0007] To achieve the above object, the utility model provides the following technical solution: A rapid die-switching position device, comprising a first L-shaped mounting bracket and a second L-shaped mounting bracket. A middle rotating shaft is rotatably connected between the first L-shaped mounting bracket and the second L-shaped mounting bracket through a bearing. A die-cutting circular knife is arranged in the middle of the outer part of the middle rotating shaft. An annular groove is formed on the outer surface of the die-cutting circular knife. The die-cutting circular knife is divided into three die-cutting areas through the annular groove. An outer limit connecting sleeve is fixed along the outer part of the middle rotating shaft on one side of the die-cutting circular knife. An outer connecting sliding sleeve is rotatably connected to the outside of the outer limit connecting sleeve through a bearing. A connecting vertical rod is fixed to the upper end of the outer connecting sliding sleeve;

[0008] A driving roller is rotatably connected between the first L-shaped mounting bracket and the second L-shaped mounting bracket along the upper end of the middle rotating shaft through a bearing. An outer spiral groove is spirally formed on the outer surface of the driving roller. The upper end of the connecting vertical rod extends into the outer spiral groove.

[0009] Preferably, an inner spiral limit groove is formed inside the outer spiral groove on the driving roller. The outer spiral groove is communicated with the inner spiral limit groove. The cross sections of the outer spiral groove and the inner spiral limit groove are "T"-shaped. An arc-shaped sliding piece is fixed to the upper end of the connecting vertical rod. The arc-shaped sliding piece is limited in the inner spiral limit groove.

[0010] Preferably, limit sliding grooves are formed at the front and rear ends of the outer surface of the middle rotating shaft. A first limiting part is fixed at the connection position of the die-cutting circular knife and the limit sliding groove. A second limiting part is fixed at the connection position of the outer limit connecting sleeve and the limit sliding groove.

[0011] Preferably, a second driving motor is installed at the upper outer side of the second L-shaped mounting bracket. The output shaft end of the second driving motor is connected to the driving roller.

[0012] Preferably, a first driving motor is installed at the lower outer side of the second L-shaped mounting bracket. A lower die-cutting rubber pad is arranged between the first L-shaped mounting bracket and the second L-shaped mounting bracket along the output shaft end of the first driving motor. The length of the lower die-cutting rubber pad is more than five times the length of the die-cutting area.

[0013] Preferably, an intermediate shaft is arranged at the front end between the lower die-cutting rubber pad and the die-cutting circular knife. A limit pressing roller is arranged in the middle of the outer part of the intermediate shaft. Limit discs are arranged on both sides of the limit pressing roller along the outer part of the intermediate shaft.

[0014] Preferably, a first rotating gear is coaxially connected to the outer side of the first L-shaped mounting bracket and the lower die-cutting rubber pad. A second rotating gear is coaxially connected to the outer side of the first L-shaped mounting bracket and the middle rotating shaft. The first rotating gear is meshed with the second rotating gear.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In this utility model, when it is necessary to switch the die-cutting pattern, the driving roller is rotated. Since the arc-shaped sliding piece is located in the inner spiral limiting groove, and the connecting vertical rod part is located in the outer spiral groove, and the outer spiral groove and the inner spiral limiting groove are spirally arranged, it will drive the outer connecting sliding sleeve, the connecting vertical rod and the arc-shaped sliding piece to slide. Due to the bearing connection relationship between the outer connecting sliding sleeve and the outer limiting connecting sleeve and the fixed connection relationship between the outer limiting connecting sleeve and the die-cutting circular knife, the die-cutting circular knife slides along the middle rotating shaft until the die-cutting area of the die-cutting pattern to be die-cut corresponds to the position of the limiting pressure roller, and then the feeding can be carried out for die-cutting. Since only the driving roller needs to be rotated during the transposition to complete the transposition operation, the operation is simple and fast, and only a set of driving structure is introduced at the upper end of the die-cutting structure, occupying a small space, solving the problem that currently two sets of driving structures need to be set for the circular knife structure and the supporting driving structure, the whole structure occupies a large space, and when one set of structure is working, the other set of structure is in an idle state, that is, a large number of driving structures are in an idle state, resulting in waste of the driving force of the structure.

[0017] 2. In this utility model, the shape of the first limiting part of the die-cutting circular knife and the second limiting part of the outer limiting connecting sleeve matches the shape of the limiting sliding groove on the middle rotating shaft, so that the die-cutting circular knife can be driven to rotate when the middle rotating shaft rotates; and the die-cutting circular knife can slide along the middle rotating shaft through the driving action to complete the rapid transposition operation. That is, the die-cutting circular knife can be driven to rotate for die-cutting and move for transposition, and the two do not affect each other, and the integrity of the overall structure is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a rapid die-cutting switching device of the present utility model from one perspective;

[0019] Figure 2 It is a schematic diagram of the overall structure of a rapid die-cutting switching device of the present utility model from another perspective;

[0020] Figure 3 It is the front view of a rapid die-cutting switching device of the present utility model;

[0021] Figure 4 It is the schematic diagram of the side sectional structure of a rapid die-cutting switching device of the present utility model;

[0022] Figure 5 It is the top view of a rapid die-cutting switching device of the present utility model;

[0023] Figure 6 It is the schematic diagram of the front sectional structure of a rapid die-cutting switching device of the present utility model.

[0024] In the figure: 1. First L-shaped mounting bracket; 2. Second L-shaped mounting bracket; 3. First driving motor; 4. Lower die-cutting rubber pad; 5. First rotating gear; 6. Second rotating gear; 7. Intermediate rotating shaft; 8. Limit chute; 9. Die-cutting circular knife; 10. First limiting part; 11. Annular groove; 12. Die-cutting area; 13. Outer limiting connecting sleeve; 14. Second limiting part; 15. Intermediate shaft; 16. Limit pressure roller; 17. Limit disc; 18. Second driving motor; 19. Driving roller; 20. Outer spiral groove; 21. Inner spiral limiting groove; 22. Outer connecting sliding sleeve; 23. Connecting vertical rod; 24. Arc-shaped sliding piece. Detailed implementation manners

[0025] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Please refer to Figures 1-6 , an embodiment provided by the present invention: A fast die-switching and positioning device includes a first L-shaped mounting bracket 1 and a second L-shaped mounting bracket 2. An intermediate rotating shaft 7 is rotatably connected between the first L-shaped mounting bracket 1 and the second L-shaped mounting bracket 2 through a bearing. Limit chutes 8 are provided at the front and rear ends of the outer surface of the intermediate rotating shaft 7. A die-cutting circular knife 9 is arranged in the middle of the outside of the intermediate rotating shaft 7. A first limiting part 10 is fixed at the connection position of the die-cutting circular knife 9 and the limit chute 8. An annular groove 11 is provided on the outer surface of the die-cutting circular knife 9. The die-cutting circular knife 9 is divided into three die-cutting areas 12 through the annular groove 11.

[0027] An outer limiting connecting sleeve 13 is fixed along the outside of the intermediate rotating shaft 7 on one side of the die-cutting circular knife 9. A second limiting part 14 is fixed at the connection position of the outer limiting connecting sleeve 13 and the limit chute 8. The shapes of the first limiting part 10 of the die-cutting circular knife 9 and the second limiting part 14 of the outer limiting connecting sleeve 13 match the shape of the limit chute 8 on the intermediate rotating shaft 7, so that the die-cutting circular knife 9 can be driven to rotate when the intermediate rotating shaft 7 rotates; and the die-cutting circular knife 9 can slide along the intermediate rotating shaft 7 through a driving action to complete a fast positioning operation; the outer connecting sliding sleeve 22 is rotatably connected to the outside of the outer limiting connecting sleeve 13 through a bearing. A connecting vertical rod 23 is fixed at the upper end of the outer connecting sliding sleeve 22. An arc-shaped sliding piece 24 is fixed at the upper end of the connecting vertical rod 23;

[0028] There is a driving roller 19 rotatably connected between the first L-shaped mounting bracket 1 and the second L-shaped mounting bracket 2 at the upper end of the middle rotating shaft 7 through a bearing. At the upper end of the outer side of the second L-shaped mounting bracket 2, a second driving motor 18 is installed, and the output shaft end of the second driving motor 18 is connected to the driving roller 19; an outer spiral groove 20 is spirally formed on the outer surface of the driving roller 19, the upper end of the connecting vertical rod 23 extends into the outer spiral groove 20, and an inner spiral limiting groove 21 is formed inside the driving roller 19 along the inner part of the outer spiral groove 20. The outer spiral groove 20 communicates with the inner spiral limiting groove 21, and the cross sections of the outer spiral groove 20 and the inner spiral limiting groove 21 are "T"-shaped. The arc-shaped sliding piece 24 is limited in the inner spiral limiting groove 21, and the inner and outer end faces of the arc-shaped sliding piece 24 are attached to the inner spiral limiting groove 21.

[0029] Since the outer limiting connecting sleeve 13 and the outer connecting sliding sleeve 22 are rotatably connected through a bearing, the rotation of the outer limiting connecting sleeve 13 will not drive the connecting vertical rod 23 and the arc-shaped sliding piece 24 to rotate; since the rotation trajectories of the driving roller 19 and the die-cutting circular knife 9 are different, when the middle rotating shaft 7 is not driven to rotate and the driving roller 19 is driven to rotate, the connecting vertical rod 23 and the arc-shaped sliding piece 24 will not rotate due to the rotation of the driving roller 19. Therefore, the connecting vertical rod 23 and the arc-shaped sliding piece 24 only move horizontally.

[0030] Further, a middle shaft 15 is provided at the front end between the lower die-cutting rubber pad 4 and the die-cutting circular knife 9. A limiting pressure roller 16 is provided in the middle of the outer part of the middle shaft 15, and limiting discs 17 are provided on both sides of the limiting pressure roller 16 along the outer part of the middle shaft 15. Both sides of the die-cutting material are located between the two limiting discs 17, which can play a role in guiding and limiting the die-cutting material and prevent the die-cutting material from shifting and misaligning during die-cutting feeding.

[0031] Further, a first driving motor 3 is installed at the lower end of the outer side of the second L-shaped mounting bracket 2. A lower die-cutting rubber pad 4 is provided between the first L-shaped mounting bracket 1 and the second L-shaped mounting bracket 2 along the output shaft end of the first driving motor 3. The length of the lower die-cutting rubber pad 4 is more than five times the length of the die-cutting area 12, that is, leaving space for the die-cutting circular knife 9 to move left and right, so that the three die-cutting areas 12 can be moved to correspond to the position of the limiting pressure roller 16. If the number of die-cutting areas 12 needs to be increased, the length of the lower die-cutting rubber pad 4 also needs to be adjusted correspondingly.

[0032] A first rotating gear 5 is coaxially connected to the lower die-cutting rubber pad 4 on the outer side of the first L-shaped mounting bracket 1, a second rotating gear 6 is coaxially connected to the middle rotating shaft 7 on the outer side of the first L-shaped mounting bracket 1, and the first rotating gear 5 meshes with the second rotating gear 6.

[0033] Working principle: The second driving motor 18 drives the driving roller 19 to rotate. Since the arc-shaped sliding piece 24 is located in the inner spiral limiting groove 21, part of the connecting vertical rod 23 is located in the outer spiral groove 20, and the outer spiral groove 20 and the inner spiral limiting groove 21 are spirally arranged, it will drive the outer connecting sliding sleeve 22, the connecting vertical rod 23 and the arc-shaped sliding piece 24 to slide. Due to the bearing connection relationship between the outer connecting sliding sleeve 22 and the outer limiting connecting sleeve 13 and the fixed connection relationship between the outer limiting connecting sleeve 13 and the die-cutting circular knife 9, the die-cutting circular knife 9 slides along the middle rotating shaft 7 until the die-cutting area 12 of the pattern to be die-cut corresponds to the position of the limiting pressure roller 16.

[0034] The first driving motor 3 drives the lower die-cutting rubber pad 4 to rotate. Through the connection relationship between one end of the lower die-cutting rubber pad 4 and the first rotating gear 5, the meshing connection relationship between the first rotating gear 5 and the second rotating gear 6, and the connection relationship between the second rotating gear 6 and the middle rotating shaft 7, the middle rotating shaft 7 is driven to rotate. Due to the limiting relationship between the limiting sliding groove 8 on the middle rotating shaft 7 and the first limiting part 10 on the die-cutting circular knife 9, the die-cutting circular knife 9 is driven to rotate, and the die-cutting circular knife 9 and the lower die-cutting rubber pad 4 rotate synchronously and in opposite directions. The material to be die-cut reaches between the die-cutting circular knife 9 and the lower die-cutting rubber pad 4 through the lower end of the limiting pressure roller 16 for die-cutting; the die-cut pattern and waste are conveyed out.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A fast die-switching bit device, comprising a first L-shaped mounting bracket (1) and a second L-shaped mounting bracket (2), characterized in that: A middle rotating shaft (7) is rotatably connected between the first L-shaped mounting bracket (1) and the second L-shaped mounting bracket (2) through a bearing. A die-cutting circular knife (9) is arranged in the middle of the outer part of the middle rotating shaft (7). An annular groove (11) is formed on the outer surface of the die-cutting circular knife (9). The die-cutting circular knife (9) is divided into three die-cutting areas (12) through the annular groove (11). An outer limiting connecting sleeve (13) is fixed along the outer part of the middle rotating shaft (7) on one side of the die-cutting circular knife (9). An outer connecting sliding sleeve (22) is rotatably connected to the outside of the outer limiting connecting sleeve (13) through a bearing. A connecting vertical rod (23) is fixed to the upper end of the outer connecting sliding sleeve (22). A driving roller (19) is rotatably connected between the first L-shaped mounting bracket (1) and the second L-shaped mounting bracket (2) through a bearing along the upper end of the middle rotating shaft (7). An outer spiral groove (20) is spirally formed on the outer surface of the driving roller (19). The upper end of the connecting vertical rod (23) extends into the outer spiral groove (20).

2. The quick die change position device according to claim 1, wherein: An inner spiral limiting groove (21) is formed inside the driving roller (19) along the outer spiral groove (20). The outer spiral groove (20) is communicated with the inner spiral limiting groove (21). The cross sections of the outer spiral groove (20) and the inner spiral limiting groove (21) are "T"-shaped. An arc-shaped sliding piece (24) is fixed to the upper end of the connecting vertical rod (23). The arc-shaped sliding piece (24) is limited inside the inner spiral limiting groove (21).

3. The quick die change position device according to claim 1, characterized in that: Limiting sliding grooves (8) are formed at the front and rear ends of the outer surface of the middle rotating shaft (7). A first limiting part (10) is fixed at the connection position of the die-cutting circular knife (9) and the limiting sliding groove (8). A second limiting part (14) is fixed at the connection position of the outer limiting connecting sleeve (13) and the limiting sliding groove (8).

4. A fast die switching position device according to claim 1, characterized in that: A second driving motor (18) is installed at the upper outer side of the second L-shaped mounting bracket (2). The output shaft end of the second driving motor (18) is connected to the driving roller (19).

5. A fast die change position device according to claim 1, characterized in that: A first driving motor (3) is installed at the lower outer side of the second L-shaped mounting bracket (2). A lower die-cutting rubber pad (4) is arranged between the first L-shaped mounting bracket (1) and the second L-shaped mounting bracket (2) along the output shaft end of the first driving motor (3). The length of the lower die-cutting rubber pad (4) is more than five times the length of the die-cutting area (12).

6. A fast die change position device according to claim 5, characterized in that: An intermediate shaft (15) is arranged at the front end between the lower die-cutting rubber pad (4) and the die-cutting circular knife (9). A limiting pressure roller (16) is arranged in the middle of the outer part of the intermediate shaft (15). Limiting discs (17) are arranged along both sides of the limiting pressure roller (16) on the outer part of the intermediate shaft (15).

7. A fast die-switching bit device according to claim 5, characterized in that: A first rotating gear (5) is coaxially connected to the lower die-cutting rubber pad (4) on the outer side of the first L-shaped mounting bracket (1). A second rotating gear (6) is coaxially connected to the middle rotating shaft (7) on the outer side of the first L-shaped mounting bracket (1). The first rotating gear (5) is meshed with the second rotating gear (6).

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