A flexographic cold stamping device and a method of making the same

Abstract

The application discloses a kind of flexographic cold stamping device, belongs to the technical field of flexographic cold stamping film.The present application includes flexographic cold stamping film, impression mechanism, tension adjusting mechanism, and for loading special stationery pen and driving special stationery pen rotation mounting seat, the impression mechanism uses rotating impression wheel to make impression roller pass through reciprocating movement and keep with the outer surface of rotating special stationery pen pressure, and the pattern film of flexographic cold stamping film is impressed to the outer surface of special stationery pen;The tension adjusting mechanism passes through rotating adjusting wheel to make adjusting roller reciprocating movement matching with the reciprocating movement of impression roller, to keep the tension of flexographic cold stamping film pattern film transmission.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of soft printing cold laminating film, and particularly relates to a soft printing cold laminating device and a preparation method thereof. BACKGROUND

[0002] The soft printing cold laminating film has the characteristics of clear and lifelike pattern, strong three-dimensionality, rich color, etc., and is widely used on various high-grade cigarette packaging boxes and valuable gift boxes. Figure 1 The existing cold laminating machine cannot meet the requirements of the existing cold laminating machine, and the existing cold laminating machine cannot meet the requirements of the existing cold laminating machine. In the transfer process, incomplete or overlapping pressure printing may occur, and improvement is needed. SUMMARY

[0003] The present application mainly solves the technical problems existing in the prior art, and provides a soft printing cold laminating device and a preparation method thereof.

[0004] The above technical problems of the present application are mainly solved by the following technical scheme: a soft printing cold laminating device, comprising a soft printing cold laminating film, a pressure printing mechanism, a tension adjusting mechanism, and a mounting seat for loading a special stationery pen and driving the special stationery pen to rotate, the pressure printing mechanism uses a rotating pressure printing wheel to make the pressure printing roller move back and forth to keep the pressure on the outer surface of the rotating special stationery pen, and the pattern film of the soft printing cold laminating film is pressure printed on the outer surface of the special stationery pen; the tension adjusting mechanism makes the adjusting roller move back and forth to match the back and forth movement of the pressure printing roller, so as to keep the tension of the pattern film of the soft printing cold laminating film during transmission.

[0005] As a preferred, the cross section of the special stationery pen is an equilateral triangle structure with rounded corners, when the special stationery pen corresponds to the pressure printing roller, one of the corners of the special stationery pen is pressed against the pressure printing roller.

[0006] As a preferred, the pressure printing mechanism comprises a pressure printing roller, a pressure printing roller frame, a pressure printing wheel, a pressure printing mounting frame, and a first driving motor, the roller shafts on both sides of the pressure printing roller are respectively connected to the two sides of the pressure printing roller frame, the pressure printing roller frame is connected to the pressure printing mounting frame through a first telescopic rod, and a first spring is sleeved on the first telescopic rod; the edge of the pressure printing wheel is provided with three pressure printing protrusions in sequence, and the two pressure printing protrusions on both sides are symmetrically arranged on both sides of the middle pressure printing protrusion, and the first driving motor drives the pressure printing wheel to rotate to make the three pressure printing protrusions respectively abut against the pressure printing roller frame, and the pressure printing roller moves back and forth.

[0007] As preferred, the tension adjusting mechanism comprises an adjusting roller, an adjusting roller holder, an adjusting wheel, an adjusting mounting holder and a second driving motor, the roller shafts on both sides of the adjusting roller are respectively rotatably connected to both sides of the adjusting roller holder, the adjusting roller holder is connected to the adjusting mounting holder through a second telescopic rod, a second spring is sleeved on the second telescopic rod; the edge of the adjusting wheel is sequentially provided with three adjusting protrusions, the second driving motor drives the adjusting wheel to rotate to make the three adjusting protrusions respectively abut against the adjusting roller holder, and the adjusting roller reciprocates.

[0008] As preferred, the soft printing cold stamping film comprises a bonding film, a pattern film and a release film which are sequentially arranged, a plurality of pattern films are bonded on the bonding film, the pattern films are arranged at equal intervals along the length direction of the bonding film and can be separated from the bonding film, the release film is arranged along the length direction of the bonding film, the release film bonds the pattern film and the bonding film and can be separated from the pattern film and the bonding film.

[0009] As preferred, one end of the release film is separated from one end of the bonding film, the one end of the release film is wound on a release film winding roller, and the one end of the bonding film is wound on a bonding film winding roller after the pattern film is embossed to the outer surface of the special stationery pen by the embossing mechanism.

[0010] As preferred, a plurality of the mounting seats are arranged in a circumferential array with the center of the rotating disc as the center, the mounting seat is rotatably connected to a rotating seat, the rotating seat is fixedly installed on the rotating disc, the mounting seat is connected to a rotating motor for driving the mounting seat to rotate, the mounting seat is provided with a recess cavity for loading the special stationery pen, and the rotating disc is intermittently rotated through a protractor disc.

[0011] As preferred, the periphery of the rotating disc is provided with a pressing mechanism, the pressing mechanism comprises a pressing frame, a pressing cylinder is installed on the pressing frame, and a pressing plate is installed on the output end of the pressing cylinder.

[0012] The application also provides a preparation method of the soft printing cold stamping device, which comprises the following steps:

[0013] In step 1, the soft printing cold stamping film is unwound from the unwinding roller, the release film and the bonding film at one end of the soft printing cold stamping film are separated, the separated release film is wound on a release film winding roller, the separated bonding film is wound on a bonding film winding roller, and the special stationery pen is inserted into the mounting seat.

[0014] In step 2, the rotating disc is rotated to move the special stationery pen to the pressing mechanism, the pressing cylinder drives the pressing plate to move downward, the special stationery pen is pressed by the pressing plate to ensure that the special stationery pen is inserted into the mounting seat.

[0015] Step 3, the rotation of the rotating disc drives the special stationery pen to the position of the impression mechanism, and the first end corner of the special stationery pen is pressed against the impression roller, at the same time, the pattern film is transmitted between the impression roller and the special stationery pen, and the starting end of the pattern film is close to the first end corner of the special stationery pen;

[0016] Step 4, the rotating motor drives the rotation of the special stationery pen, the first driving motor drives the rotation of the impression wheel, the rotation of the impression wheel drives the rotation of the three impression blocks, the first impression block and the first spring cooperate to drive the impression roller to move towards the special stationery pen first and then move away from the special stationery pen, so as to keep pressing against the first side of the special stationery pen, and a part of the pattern film is pressed onto the first side of the special stationery pen through pressing; at the same time, the second driving motor drives the rotation of the adjusting wheel, the rotation of the adjusting wheel drives the rotation of the three adjusting blocks, the first adjusting block, the second spring and the second adjusting block cooperate to drive the adjusting roller to move in the opposite direction corresponding to the impression roller, so as to keep the tension of the pattern film during transmission;

[0017] Step 5, the special stationery pen keeps rotating, and a part of the pattern film is pressed onto the second end corner of the special stationery pen through the pressing of the impression roller and the special stationery pen, and the impression wheel keeps rotating during the pressing, and the impression roller does not move;

[0018] Step 6, the special stationery pen keeps rotating, the impression wheel keeps rotating, the second impression block and the first spring cooperate to drive the impression roller to move towards the special stationery pen first and then move away from the special stationery pen, so as to keep pressing against the second side of the special stationery pen, and a part of the pattern film is pressed onto the second side of the special stationery pen through pressing; at the same time, the adjusting wheel keeps rotating, the second adjusting block, the second spring and the third adjusting block cooperate to drive the adjusting roller to move in the opposite direction corresponding to the impression roller, so as to keep the tension of the pattern film during transmission;

[0019] Step 7, the special stationery pen keeps rotating, and a part of the pattern film is pressed onto the third end corner of the special stationery pen through the pressing of the impression roller and the special stationery pen, and the impression wheel keeps rotating during the pressing, and the impression roller does not move;

[0020] Step 8, the special stationery pen keeps rotating, the impression wheel keeps rotating, the third impression block and the first spring cooperate to drive the impression roller to move towards the special stationery pen first and then move away from the special stationery pen, so as to keep pressing against the third side of the special stationery pen, and a part of the pattern film is pressed onto the third side of the special stationery pen through pressing; at the same time, the adjusting wheel keeps rotating, the first adjusting block, the second spring and the third adjusting block cooperate to drive the adjusting roller to move in the opposite direction corresponding to the impression roller, so as to keep the tension of the pattern film during transmission;

[0021] Step 9, the special-shaped stationery pen keeps rotating, a part of the pattern film is imprinted on the first end corner of the special-shaped stationery pen by the pressing roller and the special-shaped stationery pen, the pressing wheel keeps rotating during the pressing, the pressing roller does not move, and the imprinting of the pattern film of the special-shaped stationery pen is completed;

[0022] Step 10, the imprinted special-shaped stationery pen is transferred out of the imprinting mechanism by the rotation of the rotating disc, the next special-shaped stationery pen is transferred to the imprinting mechanism by the rotation of the rotating disc, and the imprinting of the pattern film on the next special-shaped stationery pen is repeated through steps 4-9.

[0023] The present application has the beneficial effects that: the present application cooperates the pressing wheel, the pressing block and the first spring to make the pressing roller reciprocate, so that the pressing roller is always pressed against the special-shaped stationery pen during the imprinting process, and the pattern film of the flexographic cold stamping film is imprinted on the outer surface of the special-shaped stationery pen; at the same time, the adjusting roller is matched with the reciprocating movement of the pressing roller through the cooperation of the adjusting wheel, the adjusting block and the second spring, so that the tension of the flexographic cold stamping film during transmission is kept. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic diagram of the prior special-shaped stationery pen;

[0025] Figure 2 It is a structure schematic diagram of the present application;

[0026] Figure 3 It is a structure schematic diagram of the flexographic cold stamping film of the present application;

[0027] Figure 4 It is a structure schematic diagram of the mounting seat of the present application;

[0028] Figure 5 It is a structure schematic diagram of the pressing mechanism of the present application;

[0029] Figure 6 It is a structure schematic diagram of the imprinting mechanism of the present application;

[0030] Figure 7 It is a structure schematic diagram of the tension adjusting mechanism of the present application;

[0031] Figure 8 It is a use state diagram of the imprinting mechanism and the tension adjusting structure of the present application;

[0032] Figure 9 It is a structure schematic diagram of the special-shaped stationery pen after imprinting.

[0033] Figure: 1. Flexo cold foil; 2. Mounting base; 3. Special-shaped stationery pen; 4. Embossing roller frame; 5. Embossing wheel; 6. Embossing roller; 7. Embossing mounting frame; 8. First drive motor; 9. First telescopic rod; 10. First spring; 11. Embossing bump; 12. Adjusting roller frame; 13. Adjusting wheel; 14. Adjusting roller; 15. Adjusting mounting frame; 16. Second drive motor; 17. Second telescopic rod; 18. Second spring; 19. Adjusting bump; 20. Adhesive film ; 21. Pattern film; 22. Release film; 23. Plastic sheet; 24. Release film take-up roller; 25. Adhesive film take-up roller; 26. Flexo cold stamping film unwinding roller; 27. Release film guide roller; 28. Adhesive film guide roller; 29. ​​Transmission roller; 30. Pressing mechanism; 31. Pulling roller; 32. Silicone; 33. Concave cavity; 34. Accommodating cavity; 35. Turntable; 36. Rotating seat; 37. Rotating motor; 38. Pressing frame; 39. Pressing cylinder; 40. Pressing plate. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0035] Example: A flexographic cold stamping device, such as Figures 2-9 As shown, it includes a flexographic cold foil film 1, an imprinting mechanism, a tension adjustment mechanism, a turntable 35, and a mounting base 2 for loading the special-shaped stationery pen 3 and driving the special-shaped stationery pen 3 to rotate.

[0036] The flexo cold stamping film 1 is wound on the flexo cold stamping film unwinding roller 26. After one end of the flexo cold stamping film 1 passes through the transmission roller 29, the release film 22 and the adhesive film 20 at one end of the flexo cold stamping film 1 are manually torn apart and separated. The separated release film 22 is guided by the release film guide roller 27 and then wound onto the release film winding roller 24. The motor drives the release film winding roller 24 to rotate so that the release film 22 is continuously wound onto the release film winding roller 24. The separated adhesive film 20 is adhered to the pattern film 21 and is transported to the stamping mechanism under the traction of the traction roller 31. After the pattern film 21 is stamped onto the outer surface of the special-shaped stationery pen 3 by the stamping mechanism, it is guided by the adhesive film guide roller 28 and wound onto the adhesive film winding roller 25. The motor drives the adhesive film winding roller 25 to rotate so that the adhesive film 20 is continuously wound onto the adhesive film winding roller 25.

[0037] like Figure 3As shown, the soft stamping cold stamping film 1 comprises an adhesive film 20, a pattern film 21 and a release film 22, which are sequentially arranged, one side of the adhesive film 20 is adhesive-free, the other side of the adhesive film 20 is coated with adhesive, one side of the pattern film 21 is adhesive-free, the other side of the pattern film 21 is coated with adhesive, the adhesive-free side of the pattern film 21 is bonded to the adhesive side of the adhesive film 20, and the release film is bonded to the adhesive side of the pattern film 21 and the adhesive side of the adhesive film 20. The pattern film 21 is a laser three-dimensional pattern film 21, a plurality of pattern films 21 are arranged at equal intervals along the length direction of the adhesive film 20, and can be separated from the adhesive film 20 by tearing; the release film 22 is arranged along the length direction of the adhesive film 20, and can be separated from the pattern film 21 and the adhesive film 20 by tearing.

[0038] In this embodiment, the width of the release film 22 is equal to the width of the adhesive film 20, and the length of the release film 22 is equal to the length of the adhesive film 20. As a preferred, plastic sheets 23 are bonded to both sides of the adhesive film 20, the plastic sheets 23 are respectively located on both sides of the pattern film 21 and arranged along the length direction of the adhesive film 20, and the plastic sheets 23 have a certain softness to facilitate winding with the adhesive film 20. By arranging the plastic sheets 23, on the one hand, the release film 22 and the adhesive film 20 can be easily separated by tearing; on the other hand, the traction roller 31 can pull the adhesive film 20 through the plastic sheets 23, and the thickness of the plastic sheets 23 forms a gap between the traction rollers 31, so that the transmission of the adhesive film 20 can be avoided by contacting the adhesive on the adhesive film 20.

[0039] The mounting seat 2 is provided in plurality, and the plurality of mounting seats 2 are arranged in a circle center of the rotating disc 35 as the center and are arranged on the upper surface of the rotating disc 35, the mounting seat 2 is rotationally connected with a rotating seat 36, the rotating seat 36 is the same as the bearing seat structure, and the rotating seat 36 is fixedly installed on the upper surface of the rotating disc 35; each mounting seat 2 is connected with a rotating motor 37, the rotating motor 37 is installed on the lower surface of the rotating disc 35, the output end of the rotating motor 37 is connected with the mounting seat 2 after penetrating through the rotating disc 35, and the mounting seat 2 is installed in the rotating seat 36, and under the driving of the rotating motor 37, the mounting seat 2 rotates relative to the rotating seat 36 and drives the special stationery pen 3 to rotate one circle.

[0040] A recessed cavity 33 for loading the special stationery pen 3 is arranged on the mounting seat 2, as a preferred, the recessed cavity 33 is filled with silica gel 32, the silica gel 32 is provided with a containing cavity 34 matched with the shape of the special stationery pen 3, the cross-sectional size of the containing cavity 34 is slightly smaller than the cross-sectional size of the special stationery pen 3, and one end of the special stationery pen 3 is inserted into the containing cavity 34 through interference fit. The special stationery pen 3 is clamped and fixed by the elasticity of the silica gel 32, which not only has good clamping stability, but also will not damage the outer surface of the special stationery pen 3.

[0041] The rotating disc 35 rotates intermittently through a dividing disc, and the periphery of the rotating disc 35 is provided with a pressing mechanism 30, which comprises a pressing frame 38, a pressing cylinder 39 mounted on the pressing frame 38, and a pressing plate 40 mounted on the output end of the pressing cylinder 39. When the mounting seat 2 loaded with the special stationery pen 3 rotates to the pressing mechanism 30, the pressing cylinder 39 drives the pressing plate 40 to move downward, and the pressing plate 40 presses the other end of the special stationery pen 3, so as to ensure that the head end of the special stationery pen 3 is fully inserted into the accommodating cavity 34 of the silica gel 32, thereby ensuring the consistency of the special stationery pen 3 in pressing the pattern film 21, and ensuring that the special stationery pen 3 does not come off from the accommodating cavity 34 during the pressing process.

[0042] In the embodiment, the cross section of the special stationery pen 3 is an equilateral triangle, and the three end angles are rounded. When the special stationery pen 3 is loaded in the mounting seat 2 and rotates to the pressing roller 6 in the pressing mechanism, one of the end angles of the special stationery pen 3 corresponds to the pressing roller 6 and is pressed against the pressing roller 6.

[0043] The pressing mechanism uses the rotating pressing wheel 5 to make the pressing roller 6 move back and forth to keep pressing against the outer surface of the rotating special stationery pen 3, and to press the pattern film 21 of the soft printing cold stamping film 1 to the outer surface of the special stationery pen 3. The pressing mechanism comprises the pressing roller 6, the pressing roller frame 4, the pressing wheel 5, the pressing mounting frame 7, the first driving motor 8, the first telescopic rod 9, and the first spring 10. The roller shafts on both sides of the pressing roller 6 are rotatably connected to both sides of the pressing roller frame 4. The first telescopic rod 9 is located between the pressing roller frame 4 and the pressing mounting frame 7, one end of the first telescopic rod 9 is connected to the pressing roller frame 4, and the other end of the first telescopic rod 9 is connected to the pressing mounting frame 7. The first spring 10 is sleeved on the first telescopic rod 9, one end of the first spring 10 is connected to the pressing roller frame 4, and the other end of the first spring 10 is connected to the pressing mounting frame 7. The output end of the first driving motor 8 is connected to the pressing wheel 5, the pressing wheel 5 is located between the pressing roller frame 4 and the pressing mounting frame 7, the edges of the pressing wheel 5 are sequentially provided with three pressing lugs 11, and the pressing lugs 11 on both sides are symmetrically arranged on both sides of the middle pressing lug 11. The pressing lug 11 is an arc structure, the pressing lug 11 is integrally connected with the pressing wheel 5 to form a cam structure. Under the driving of the first driving motor 8, the pressing wheel 5 rotates and drives the three pressing lugs 11 to rotate, the three pressing lugs 11 respectively abut against the pressing roller frame 4, and the pressing roller 6 moves back and forth through the pressing roller frame 4. Specifically,

[0044] As Figure 6As shown, when the right pressing block 11 is in contact with the pressing roller holder 4, the right pressing block 11 pushes the pressing roller holder 4 to move downward, and the pressing roller 6 moves downward through the pressing roller holder 4, the first spring 10 is stretched, then the pressing roller holder 4 moves upward under the elastic force of the first spring 10, and the pressing roller 6 moves upward; when the right pressing block 11 is not in contact with the pressing roller holder 4, i.e. the gap between the right pressing block 11 and the middle pressing block 11 is towards the pressing roller holder 4, the pressing roller 6 does not move; when the middle pressing block 11 is in contact with the pressing roller holder 4, the middle pressing block 11 pushes the pressing roller holder 4 to move downward, and the pressing roller 6 moves downward through the pressing roller holder 4, the first spring 10 is stretched, then the pressing roller holder 4 moves upward under the elastic force of the first spring 10, and the pressing roller 6 moves upward; when the middle pressing block 11 is not in contact with the pressing roller holder 4, i.e. the gap between the middle pressing block 11 and the left pressing block 11 is towards the pressing roller holder 4, the pressing roller 6 does not move; when the left pressing block 11 is in contact with the pressing roller holder 4, the left pressing block 11 pushes the pressing roller holder 4 to move downward, and the pressing roller 6 moves downward through the pressing roller holder 4, the first spring 10 is stretched, then the pressing roller holder 4 moves upward under the elastic force of the first spring 10, and the pressing roller 6 moves upward; when the left pressing block 11 is not in contact with the pressing roller holder 4, i.e. the gap between the left pressing block 11 and the right pressing block 11 is towards the pressing roller holder 4, the pressing roller 6 does not move.

[0045] As Figure 8As shown, when the rotary disc 35 rotates to transfer the special stationery pen 3 to the position of the impression mechanism, the end corner A of the special stationery pen 3 is pressed against the impression roller 6, at this time, the gap between the left impression block 11 and the right impression block 11 faces the impression roller frame 4, and the right impression block 11 is close to the impression roller frame 4, at the same time, the traction roller 31 transfers the adhesive film 20, so that the pattern film 21 is transferred to the position between the impression roller 6 and the special stationery pen 3, and the starting end of the pattern film 21 is close to the end corner A of the special stationery pen 3; during the impression, the rotary motor 37 drives the special stationery pen 3 to rotate, the first driving motor 8 drives the impression wheel 5 to rotate, the impression wheel 5 drives the three impression blocks 11 to rotate, the right impression block 11 and the first spring 10 cooperate to make the impression roller 6 first move downward and then move upward, so as to keep pressing against the side surface AB of the special stationery pen 3; the gap between the right impression block 11 and the middle impression block 11 makes the impression roller 6 not move, so as to keep pressing against the end corner B of the special stationery pen 3; the middle impression block 11 and the first spring 10 cooperate to make the impression roller 6 first move downward and then move upward, so as to keep pressing against the side surface BC of the special stationery pen 3; the gap between the middle impression block 11 and the left impression block 11 makes the impression roller 6 not move, so as to keep pressing against the end corner C of the special stationery pen 3; the left impression block 11 and the first spring 10 cooperate to make the impression roller 6 first move downward and then move upward, so as to keep pressing against the side surface CA of the special stationery pen 3; the gap between the left impression block 11 and the right impression block 11 makes the impression roller 6 not move, so as to keep pressing against the end corner A of the special stationery pen 3, the impression of the pattern film 21 of the special stationery pen 3 is completed, and the next special stationery pen 3 is transferred to the position and pressed against the end corner A of the next special stationery pen 3.

[0046] The special stationery pen 3 rotates one circle, and the impression of the pattern film 21 is completed; Figure 9 As shown, there is a gap between the starting end and the tail end of the pattern film 21 on the special stationery pen 3, which is formed because the impression roller 6 and the special stationery pen 3 are first pressed against each other and then the starting end of the pattern film 21 is pressed; in this way, the damage to the pattern film 21 during the initial pressing of the impression roller 6 and the special stationery pen 3 can be avoided.

[0047] The tension adjusting mechanism keeps the tension of the pattern film 21 of the cold stamping film 1 during transmission by rotating the adjusting wheel 13 to make the adjusting roller 14 reciprocate in accordance with the reciprocation of the impression roller 6; the tension adjusting mechanism comprises the adjusting roller 14, the adjusting roller frame 12, the adjusting wheel 13, the adjusting mounting frame 15, the second driving motor 16, the second telescopic rod 17 and the second spring 18, the roller shafts on both sides of the adjusting roller 14 are respectively rotatably connected to both sides of the adjusting roller frame 12, the second telescopic rod 17 is located between the adjusting roller frame 12 and the adjusting mounting frame 15, one end of the second telescopic rod 17 is connected to the adjusting roller frame 12, the other end of the second telescopic rod 17 is connected to the adjusting mounting frame 15, the second spring 18 is sleeved on the second telescopic rod 17, one end of the second spring 18 is connected to the adjusting roller frame 12, the other end of the second spring 18 is connected to the adjusting mounting frame 15; the output end of the second driving motor 16 is connected to the adjusting wheel 13, the adjusting wheel 13 is located between the adjusting roller frame 12 and the adjusting mounting frame 15, the edge of the adjusting wheel 13 is sequentially provided with three adjusting lugs 19, the adjusting lugs 19 are in arc-shaped structure, the adjusting lugs 19 are integrally connected to the adjusting wheel 13 to form a cam structure. Under the driving of the second driving motor 16, the adjusting wheel 13 rotates and drives the three adjusting lugs 19 to rotate, the three adjusting lugs 19 respectively abut against the adjusting roller frame 12, and the adjusting roller 14 reciprocates through the adjusting roller frame 12, specifically:

[0048] As Figure 7When the adjusting wheel 13 continues to rotate so that the left adjusting protrusion 19 is not in contact with the adjusting roller frame 12, the middle adjusting protrusion 19 pushes the adjusting roller frame 12 to move downward, and drives the adjusting roller 14 to move downward through the adjusting roller frame 12, the second spring 18 is stretched, and then the adjusting roller frame 12 moves upward under the elastic force of the second spring 18, and drives the adjusting roller 14 to move upward; when the adjusting wheel 13 continues to rotate so that the left adjusting protrusion 19 is not in contact with the adjusting roller frame 14, that is, the gap formed between the left adjusting protrusion 19 and the middle adjusting protrusion 19 is facing the adjusting roller frame 12, and the adjusting roller 14 does not move; when the adjusting wheel 13 continues to rotate so that the middle adjusting protrusion 19 is in contact with the adjusting roller frame 12, the middle adjusting protrusion 19 pushes the adjusting roller frame 12 to move downward, and drives the adjusting roller 14 to move downward through the adjusting roller frame 12, the second spring 18 is stretched, and then the adjusting roller frame 12 is under the elastic force of the second spring When the adjusting wheel 13 continues to rotate so that the adjusting protrusion 19 on the right side is not in contact with the adjusting roller frame 12, the gap formed between the adjusting protrusion 19 on the right side and the adjusting protrusion 19 on the left side faces the adjusting roller frame 12, and the adjusting roller 14 does not move.

[0049] like Figure 8 As shown, when the turntable 35 rotates to transfer the special-shaped stationery pen 3 to the embossing mechanism, the end angle A of the special-shaped stationery pen 3 is pressed against the embossing roller 6. At this time, the tensioning force of the pattern film 21 of the flexographic cold foil film 1 during transmission is provided by the adjusting roller 14 of the tension adjustment mechanism, that is, the adjusting protrusion 19 on the left side of the adjusting wheel 13 abuts against the adjusting roller frame 12, and the adjusting roller 14 moves downward to tension the pattern film 21. At the same time, the gap formed between the embossing protrusion 11 on the left side of the embossing wheel 5 and the embossing protrusion 11 on the right side faces the embossing roller frame 4, and the embossing protrusion 11 on the right side is close to the embossing roller frame 4;

[0050] In the process of pressing the side AB of the special stationery pen 3, the right pressing block 11 and the first spring 10 cooperate to make the pressing roller 6 move down first and then move up, the left adjusting block 19, the second spring 18 and the middle adjusting block 19 cooperate to make the adjusting roller 14 move up first and then move down, in the process, the down stroke of the pressing roller 6 is equal to the up stroke of the adjusting roller 14, and the tension provided when the pattern film 21 is transmitted is changed from being provided by the adjusting roller 14, being provided by the adjusting roller 14 and the pressing roller 6 together, being provided by the pressing roller 6, and being provided by the adjusting roller 14 and the pressing roller 6 together;

[0051] In the process of pressing the corner B of the special stationery pen 3, the gap between the right pressing block 11 and the middle pressing block 11 faces the pressing roller frame 4, and the pressing roller 6 does not move, in the process, the tension provided when the pattern film 21 is transmitted is provided by the adjusting roller 14, that is, the middle adjusting block 19 is in abutting contact with the adjusting roller frame 12, and the adjusting roller 14 moves down to tension the pattern film 21;

[0052] In the process of pressing the side BC of the special stationery pen 3, the middle pressing block 11 and the first spring 10 cooperate to make the pressing roller 6 move down first and then move up, the middle adjusting block 19, the second spring 18 and the right adjusting block 19 cooperate to make the adjusting roller 14 move up first and then move down, in the process, the down stroke of the pressing roller 6 is equal to the up stroke of the adjusting roller 14, and the tension provided when the pattern film 21 is transmitted is changed from being provided by the adjusting roller 14, being provided by the adjusting roller 14 and the pressing roller 6 together, being provided by the pressing roller 6, and being provided by the adjusting roller 14 and the pressing roller 6 together;

[0053] In the process of pressing the corner C of the special stationery pen 3, the gap between the middle pressing block 11 and the left pressing block 11 faces the pressing roller frame 4, and the pressing roller 6 does not move, in the process, the tension provided when the pattern film 21 is transmitted is provided by the adjusting roller 14, that is, the right adjusting block 19 is in abutting contact with the adjusting roller frame 12, and the adjusting roller 14 moves down to tension the pattern film 21;

[0054] In the process of pressing the side CA of the special stationery pen 3, the left pressing block 11 and the first spring 10 cooperate to make the pressing roller 6 move down first and then move up, the right adjusting block 19, the second spring 18 and the left adjusting block 19 cooperate to make the adjusting roller 14 move up first and then move down, in the process, the down stroke of the pressing roller 6 is equal to the up stroke of the adjusting roller 14, and the tension provided when the pattern film 21 is transmitted is changed from being provided by the adjusting roller 14, being provided by the adjusting roller 14 and the pressing roller 6 together, being provided by the pressing roller 6, and being provided by the adjusting roller 14 and the pressing roller 6 together;

[0055] In the process of stamping the end corner A of the special stationery pen 3, the gap between the left stamping protrusion 11 and the right stamping protrusion 11 is directed towards the stamping roller 6 frame 4, and the stamping roller 6 does not move. In this process, the tension of the pattern film 21 during transmission is provided by the adjusting roller 14, that is, the left adjusting protrusion 19 is in abutting contact with the adjusting roller frame 12, and the adjusting roller 14 is lowered to tension the pattern film 21.

[0056] By setting the tension adjusting mechanism, the up and down movement of the adjusting roller 14 is used to cooperate with the up and down movement of the stamping roller 6 to maintain the tension of the pattern film 21 during transmission.

[0057] The present application also provides a preparation method of a soft printing cold stamping device, comprising the following steps:

[0058] Step 1, the soft printing cold stamping film unwinding roller 26 unwinds the soft printing cold stamping film 1, and the release film 22 and the adhesive film 20 at one end of the soft printing cold stamping film 1 are separated by tearing, the separated release film 22 is wound on the release film winding roller 24, and the separated adhesive film 20 is wound on the adhesive film winding roller 25; the special stationery pen 3 is inserted into the mounting seat 2;

[0059] Step 2, the rotating disc 35 rotates to transfer the special stationery pen 3 to the pressing mechanism 30, the pressing cylinder 39 drives the pressing plate 40 to move downward, and the special stationery pen 3 is pressed by the pressing plate 40 to ensure that the special stationery pen 3 is inserted into the mounting seat 2 in place;

[0060] Step 3, the rotating disc 35 rotates to transfer the special stationery pen 3 to the stamping mechanism, and the first end corner of the special stationery pen 3 is pressed against the stamping roller 6, at the same time, the pattern film 21 is transmitted between the stamping roller 6 and the special stationery pen 3, and the starting end of the pattern film 21 is close to the first end corner of the special stationery pen 3;

[0061] Step 4, the rotating motor 37 drives the special stationery pen 3 to rotate, the first driving motor 8 drives the stamping wheel 5 to rotate, the stamping wheel 5 rotates to drive the three stamping protrusions 11 to rotate, the first stamping protrusion 11 and the first spring 10 cooperate to make the stamping roller 6 move towards the special stationery pen 3 first and then move away from the special stationery pen 3, so as to keep pressing against the first side surface of the special stationery pen 3, and a part of the pattern film 21 is pressed and stamped on the first side surface of the special stationery pen 3; at the same time, the second driving motor 16 drives the adjusting wheel 13 to rotate, the adjusting wheel 13 rotates to drive the three adjusting protrusions 19 to rotate, the first adjusting protrusion 19, the second spring 18 and the second adjusting protrusion 19 cooperate to make the adjusting roller 14 move in the opposite direction corresponding to the stamping roller 6, so as to maintain the tension of the pattern film 21 during transmission;

[0062] Step 5, the special-shaped stationery pen 3 keeps rotating, and a part of the pattern film 21 is imprinted on the second end corner of the special-shaped stationery pen 3 through the pressing of the pressing roller 6 and the special-shaped stationery pen 3, in the pressing process, the pressing wheel 5 keeps rotating, and the pressing roller 6 does not move;

[0063] Step 6, the special-shaped stationery pen 3 keeps rotating, the pressing wheel 5 keeps rotating, the second pressing block 11 and the first spring 10 cooperate to make the pressing roller 6 move towards the special-shaped stationery pen 3 first and then move away from the special-shaped stationery pen 3, so as to keep pressing with the second side of the special-shaped stationery pen 3, and a part of the pattern film 21 is imprinted on the second side of the special-shaped stationery pen 3 through the pressing; at the same time, the adjusting wheel 13 keeps rotating, the second adjusting block 19, the second spring 18 and the third adjusting block 19 cooperate to make the adjusting roller 14 move in the opposite direction corresponding to the pressing roller 6, so as to keep the tension of the pattern film 21 during transmission;

[0064] Step 7, the special-shaped stationery pen 3 keeps rotating, and a part of the pattern film 21 is imprinted on the third end corner of the special-shaped stationery pen 3 through the pressing of the pressing roller 6 and the special-shaped stationery pen 3, in the pressing process, the pressing wheel 5 keeps rotating, and the pressing roller 6 does not move;

[0065] Step 8, the special-shaped stationery pen 3 keeps rotating, the pressing wheel 5 keeps rotating, the third pressing block 11 and the first spring 10 cooperate to make the pressing roller 6 move towards the special-shaped stationery pen 3 first and then move away from the special-shaped stationery pen 3, so as to keep pressing with the third side of the special-shaped stationery pen 3, and a part of the pattern film 21 is imprinted on the third side of the special-shaped stationery pen 3 through the pressing; at the same time, the adjusting wheel 13 keeps rotating, the first adjusting block 19, the second spring 18 and the third adjusting block 19 cooperate to make the adjusting roller 14 move in the opposite direction corresponding to the pressing roller 6, so as to keep the tension of the pattern film 21 during transmission;

[0066] Step 9, the special-shaped stationery pen 3 keeps rotating, and a part of the pattern film 21 is imprinted on the first end corner of the special-shaped stationery pen 3 through the pressing of the pressing roller 6 and the special-shaped stationery pen 3, in the pressing process, the pressing wheel 5 keeps rotating, and the pressing roller 6 does not move, and the imprinting of the pattern film 21 on the special-shaped stationery pen 3 is completed;

[0067] Step 10, the special-shaped stationery pen 3 after the imprinting is transferred out of the imprinting mechanism through the rotation of the rotating disc 35, and the next special-shaped stationery pen 3 is transferred to the imprinting mechanism through the rotation of the rotating disc 35, and the imprinting of the pattern film 21 on the next special-shaped stationery pen 3 is repeated through steps 4-9.

[0068] Finally, it should be pointed out that the above embodiments are only representative examples of the present application. Obviously, the present application is not limited to the above embodiments, and can have many variations. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application should be considered as falling within the protection scope of the present application.

Claims

1. A flexographic cold stamping device, comprising a flexographic cold stamping film (1), a stamping mechanism, a tension adjustment mechanism, and a mounting base (2) for loading and rotating a special-shaped stationery pen (3), characterized in that: The embossing mechanism rotates the embossing wheel (5) so that the embossing roller (6) maintains pressure against the outer surface of the rotating special-shaped stationery pen (3) through reciprocating movement, and embosses the pattern film (21) of the flexographic cold stamping film (1) onto the outer surface of the special-shaped stationery pen (3); the tension adjustment mechanism rotates the adjustment wheel (13) so that the adjustment roller (14) makes a reciprocating movement matching the reciprocating movement of the embossing roller (6), so as to maintain the tension of the pattern film (21) of the flexographic cold stamping film (1) during transmission; The cross section of the special-shaped stationery pen (3) is an equilateral triangle structure with rounded end corners. When the special-shaped stationery pen (3) corresponds to the embossing roller (6), one end corner of the special-shaped stationery pen (3) is pressed against the embossing roller (6). The embossing mechanism comprises an embossing roller (6), an embossing roller frame (4), an embossing wheel (5), an embossing mounting frame (7), and a first driving motor (8). The roller shafts on both sides of the embossing roller (6) are respectively rotatably connected to the two sides of the embossing roller frame (4). The embossing roller frame (4) is connected to the embossing mounting frame (7) via a first telescopic rod (9). The first telescopic rod (9) is sleeved with a first spring (10). The edge of the embossing wheel (5) is sequentially provided with three embossing protrusions (11), and the two embossing protrusions (11) on both sides are symmetrically arranged on both sides of the embossing protrusion (11) in the middle. The first driving motor (8) drives the embossing wheel (5) to rotate so that the three embossing protrusions (11) are respectively in contact with the embossing roller frame (4), and the embossing roller (6) moves back and forth. The tension adjustment mechanism comprises an adjusting roller (14), an adjusting roller frame (12), an adjusting wheel (13), an adjusting mounting frame (15), and a second driving motor (16); roller shafts on both sides of the adjusting roller (14) are respectively rotatably connected to both sides of the adjusting roller frame (12); the adjusting roller frame (12) is connected to the adjusting mounting frame (15) via a second telescopic rod (17); a second spring (18) is sleeved on the second telescopic rod (17); three adjusting protrusions (19) are sequentially provided on the edge of the adjusting wheel (13); the second driving motor (16) drives the adjusting wheel (13) to rotate so that the three adjusting protrusions (19) respectively contact the adjusting roller frame (12), and the adjusting roller (14) moves back and forth.

2. The flexographic cold stamping device according to claim 1, characterized in that: The flexographic cold stamping film (1) comprises an adhesive film (20), a pattern film (21) and a release film (22) which are arranged in sequence. A plurality of pattern films (21) are bonded to the adhesive film (20). The pattern films (21) are arranged at equal intervals along the length direction of the adhesive film (20) and can be separated from the adhesive film (20). The release film (22) is arranged along the length direction of the adhesive film (20). The release film (22) is bonded to the pattern film (21) and the adhesive film (20) and can be separated from the pattern film (21) and the adhesive film (20).

3. The flexographic cold stamping device according to claim 2, characterized in that: One end of the release film (22) is separated from one end of the adhesive film (20), and one end of the release film (22) is wound onto a release film winding roller (24). One end of the adhesive film (20) is wound onto an adhesive film winding roller (25) after the pattern film (21) is stamped onto the outer surface of the special-shaped stationery pen (3) by a stamping mechanism.

4. The flexographic cold stamping device according to claim 1, characterized in that: A plurality of the mounting seats (2) are arranged circumferentially on the turntable (35) with the center of the turntable (35) as the center. The mounting seats (2) are rotatably connected with a rotating seat (36). The rotating seat (36) is fixedly mounted on the turntable (35). The mounting seats (2) are connected to a rotating motor (37) for driving the mounting seats (2) to rotate. A concave cavity (33) for loading special-shaped stationery pens (3) is provided on the mounting seats (2). The turntable (35) rotates intermittently through a dividing plate.

5. The flexographic cold stamping device according to claim 4, characterized in that: A pressing mechanism (30) is provided around the rotating disk (35), and the pressing mechanism (30) includes a pressing frame (38), a pressing cylinder (39) is installed on the pressing frame (38), and a pressing plate (40) is installed at the output end of the pressing cylinder (39).

6. A method for preparing a flexographic cold stamping device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: unwind the flexo cold stamping film (1) from the flexo cold stamping film unwinding roller (26), tear apart the release film (22) and the adhesive film (20) at one end of the flexo cold stamping film (1), wind the separated release film (22) onto the release film winding roller (24), and wind the separated adhesive film (20) onto the adhesive film winding roller (25); insert the special-shaped stationery pen (3) into the mounting seat (2); Step 2: The turntable (35) rotates to move the special-shaped stationery pen (3) to the pressing mechanism (30), and the pressing cylinder (39) drives the pressing plate (40) to move downward, and the special-shaped stationery pen (3) is pressed downward by the pressing plate (40) to ensure that the special-shaped stationery pen (3) is inserted into the mounting seat (2) in place; Step 3: The turntable (35) rotates to turn the special-shaped stationery pen (3) to the embossing mechanism, and the first end corner of the special-shaped stationery pen (3) is pressed against the embossing roller (6). At the same time, the pattern film (21) is transferred between the embossing roller (6) and the special-shaped stationery pen (3), and the starting end of the pattern film (21) is close to the first end corner of the special-shaped stationery pen (3); Step 4, the rotating motor (37) drives the special-shaped stationery pen (3) to rotate, the first driving motor (8) drives the embossing wheel (5) to rotate, the rotation of the embossing wheel (5) drives the three embossing protrusions (11) to rotate, the first embossing protrusion (11) cooperates with the first spring (10) to make the embossing roller (6) first move toward the special-shaped stationery pen (3) and then move away from the special-shaped stationery pen (3) to maintain the counter-pressure with the first side of the special-shaped stationery pen (3), and a part of the pattern film (21) is embossed onto the first side of the special-shaped stationery pen (3) through the counter-pressure; at the same time, the second driving motor (16) drives the adjusting wheel (13) to rotate, the rotation of the adjusting wheel (13) drives the three adjusting protrusions (19) to rotate, the first adjusting protrusion (19), the second spring (18) and the second adjusting protrusion (19) cooperate to make the adjusting roller (14) move in the opposite direction corresponding to the embossing roller (6) to maintain the tension of the pattern film (21) during transmission; Step 5: The special-shaped stationery pen (3) keeps rotating, and the embossing roller (6) and the special-shaped stationery pen (3) are pressed against each other to emboss a portion of the pattern film (21) onto the second end corner of the special-shaped stationery pen (3). During the pressing process, the embossing wheel (5) keeps rotating, and the embossing roller (6) does not move. Step 6, the special-shaped stationery pen (3) keeps rotating, the embossing wheel (5) keeps rotating, the second embossing protrusion (11) and the first spring (10) cooperate to make the embossing roller (6) first move toward the special-shaped stationery pen (3) and then move away from the special-shaped stationery pen (3), so as to maintain the counter-pressure with the second side of the special-shaped stationery pen (3), and a part of the pattern film (21) is embossed onto the second side of the special-shaped stationery pen (3) by the counter-pressure; at the same time, the adjusting wheel (13) keeps rotating, the second adjusting protrusion (19), the second spring (18) and the third adjusting protrusion (19) cooperate to make the adjusting roller (14) move in the opposite direction corresponding to the embossing roller (6), so as to maintain the tension of the pattern film (21) during transmission; Step 7: The special-shaped stationery pen (3) keeps rotating, and the embossing roller (6) and the special-shaped stationery pen (3) are pressed against each other to emboss a portion of the pattern film (21) onto the third end corner of the special-shaped stationery pen (3). During the pressing process, the embossing wheel (5) keeps rotating, and the embossing roller (6) does not move. Step 8, the special-shaped stationery pen (3) keeps rotating, the embossing wheel (5) keeps rotating, the third embossing protrusion (11) and the first spring (10) cooperate to make the embossing roller (6) first move toward the special-shaped stationery pen (3) and then move away from the special-shaped stationery pen (3), so as to maintain the counter-pressure with the third side of the special-shaped stationery pen (3), and a part of the pattern film (21) is embossed onto the third side of the special-shaped stationery pen (3) by the counter-pressure; at the same time, the adjusting wheel (13) keeps rotating, the first adjusting protrusion (19), the second spring (18) and the third adjusting protrusion (19) cooperate to make the adjusting roller (14) move in the opposite direction corresponding to the embossing roller (6), so as to maintain the tension of the pattern film (21) during transmission; Step 9, the special-shaped stationery pen (3) keeps rotating, and the embossing roller (6) and the special-shaped stationery pen (3) are pressed against each other to emboss a portion of the pattern film (21) onto the first end corner of the special-shaped stationery pen (3). During the pressing process, the embossing wheel (5) keeps rotating, and the embossing roller (6) does not move, thereby completing the embossing of the pattern film (21) of the special-shaped stationery pen (3); Step 10, the embossed special-shaped stationery pen (3) is rotated out of the embossing mechanism by rotating the turntable (35), and the next special-shaped stationery pen (3) is rotated to the embossing mechanism by rotating the turntable (35), and steps 4 to 9 are repeated to emboss the pattern film (21) on the next special-shaped stationery pen (3).

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