Anti-adhesion cold stamping device

Abstract

The utility model discloses an anti-adhesion cold stamping device, comprising a first conveying unit, a second conveying unit, a third conveying unit, a stamping unit and a blowing unit, wherein the first conveying unit is used to convey a printing material, the third conveying unit is used to convey a stamping foil, one end of the first conveying unit is connected with the second conveying unit, the stamping unit is located above the second conveying unit, the stamping foil passes between the second conveying unit and the stamping unit, a stamping position is formed between the stamping unit and the second conveying unit, and the blowing unit faces the stamping position. The anti-adhesion cold stamping device of the utility model realizes separation of the stamping foil and the printing material after stamping, prevents the stamping foil from adhering to the printing material, and maintains the transportation stability of the printing material after stamping.

Description

Technical Field

[0001] The utility model relates to the technical field of cold stamping, in particular to an anti-adhesion cold stamping device. Background Art

[0002] Cold stamping technology refers to the method of transferring hot stamping foil to the printing material using UV adhesive. Print UV adhesive on the printing material (such as base paper), solidify the UV adhesive, and use the pressure roller to laminate the hot stamping foil and the printing material. The excess hot stamping foil is peeled off from the printing material, and the hot stamping foil is transferred to the printing material only at the part coated with adhesive to obtain the required hot stamping image and text.

[0003] In the hot stamping process of existing equipment, since the viscosity of UV adhesive increases under the action of heating, the hot stamping foil is easily adhered to the printing material after the hot stamping foil contacts the printing material. Driven by the winding roller, the printing material after hot stamping is separated from the conveyor belt, and the printing material is easily transported together with the hot stamping foil, which affects the winding of the hot stamping foil and the transportation of the printing material after hot stamping.

[0004] Therefore, how to make an anti-sticking cold stamping device to separate the hot stamping foil and the printing material after hot stamping, prevent the hot stamping foil and the printing material from sticking, and maintain the transportation stability of the printing material after hot stamping has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] The utility model aims to provide an anti-adhesion cold stamping device, which can separate the stamping foil and the printing material after stamping, prevent the stamping foil and the printing material from adhering, and maintain the transportation stability of the printing material after stamping.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an anti-adhesion cold stamping device, comprising a first conveying unit, a second conveying unit, a third conveying unit, a stamping unit and a blowing unit, wherein the first conveying unit is used to convey printing materials, the third conveying unit is used to convey stamping foil, one end of the first conveying unit is connected with the second conveying unit, the stamping unit is located above the second conveying unit, the stamping foil passes between the second conveying unit and the stamping unit, a stamping position is formed between the stamping unit and the second conveying unit, and the blowing unit faces the stamping position.

[0008] Furthermore, the hot stamping unit includes a hot stamping roller, a heating component for heating the hot stamping roller, and a first lifting component for controlling the lifting of the hot stamping roller, and the hot stamping roller is arranged above the second conveying unit.

[0009] Furthermore, the blowing unit is located at a side away from the first conveying unit, and the blowing unit is arranged between the third conveying unit and the second conveying unit.

[0010] Furthermore, the first conveying unit and the second conveying unit transport in the same direction, and both the first conveying unit and the second conveying unit are conveyor belts.

[0011] Furthermore, the third conveying unit includes an unwinding roller and a winding roller arranged on both sides of the hot stamping unit, and the winding roller and the blowing unit are located on the same side.

[0012] Furthermore, the third conveying unit also includes a rotatably arranged pair of roller assemblies and a return assembly for controlling the pair of roller assemblies to return to their original positions.

[0013] Furthermore, the roller assembly includes two tensioning rollers arranged at intervals and two rotating rods arranged at intervals. Both ends of the tensioning roller are fixedly connected to the rotating rods, and the return assembly is fixedly connected to the middle of the rotating rods.

[0014] Furthermore, the third conveying unit also includes a clamping conveying pair of rollers, which includes a second lifting assembly, a fixed roller and a lifting roller. The lifting roller is rotationally connected to the displacement end of the second lifting assembly, and a clamping position is formed between the fixed roller and the lifting roller.

[0015] Furthermore, the third conveying unit also includes a first servo motor for controlling the unwinding roller, a second servo motor for controlling the winding roller, and a third servo motor for controlling the clamping conveying pair of rollers. The working torque of the first servo motor and the second servo motor is smaller than the working torque of the third servo motor.

[0016] The utility model discloses an anti-adhesion cold stamping device, when a pattern is stamped on a printing material, a blowing unit is started to continuously blow air toward the stamping position where the stamping foil and the printing material are in contact, and at the same time the stamping unit leaves the stamping position, thereby promoting the separation of the stamping foil and the printing material after stamping, so that the second conveying unit of the stamping material continues to transport the stamping material forward, transfers the stamping material after the pattern is stamped, and realizes the separation of the stamping foil and the printing material, preventing the stamping foil and the printing material from adhering to each other, and maintaining the transportation stability of the stamping material after stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the anti-adhesion cold stamping device;

[0018] Figure 2 A schematic diagram of a structure in which a side panel is removed from a first-person perspective of a cold stamping device to prevent adhesion;

[0019] Figure 3 It is a schematic diagram of the structure of the anti-adhesion cold stamping device from a second viewing angle;

[0020] Among them, 1. first conveying unit; 11. unwinding roller; 12. first adjusting component; 13. second adjusting component; 14. winding roller; 15. first servo motor; 16. second servo motor; 17. clamping conveying roller pair; 171. first lifting unit; 172. fixed roller; 173. lifting roller; 18. roller pair structure; 181. tensioning roller; 182. rotating rod; 19. return component; 2. hot stamping unit; 21. hot stamping roller; 22. heating component; 23. second lifting component; 3. second conveying unit. DETAILED DESCRIPTION

[0021] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of devices or methods consistent with some aspects of the utility model.

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to the solutions required as the utility model described in the claims.

[0024] like Figures 1 to 3The anti-adhesion cold stamping device shown in the figure comprises a first conveying unit 1, a second conveying unit 2, a third conveying unit 3, a stamping unit 4 and a blowing unit 5. The first conveying unit 1 is used to convey the printing material, the third conveying unit 3 is used to convey the stamping foil, one end of the first conveying unit 1 is connected with the second conveying unit 2, the stamping unit 4 is located above the second conveying unit 2, the stamping foil passes between the second conveying unit 2 and the stamping unit 4, a stamping position 6 is formed between the stamping unit 4 and the second conveying unit 2, and the blowing unit 5 faces the stamping position 6; during the stamping process, the first conveying unit 1 transports the printing material to the second conveying unit 2, that is, the printing material is sent to the second conveying unit 2. To the bottom of the hot stamping unit 4, the third conveying unit 3 synchronously transmits the hot stamping foil to the hot stamping unit 4, and the hot stamping unit 4 stamps the pattern on the hot stamping foil onto the printing material. After hot stamping, the blowing unit 5 is started to continuously blow air to the hot stamping position 6 where the hot stamping foil and the printing material are in contact. At the same time, the hot stamping unit 4 leaves the hot stamping position 6, thereby promoting the separation of the hot stamping foil and the printing material after hot stamping, so that the second conveying unit 2 of the printing material after hot stamping continues to transport forward, and transfers the printing material after hot stamping with the pattern, so as to separate the hot stamping foil and the printing material from each other, prevent the hot stamping foil and the printing material from sticking to each other, and maintain the transportation stability of the printing material after hot stamping; wherein, the blowing unit 5 is a fan.

[0025] Specifically, Figure 1 and Figure 2 As shown, the hot stamping unit 4 includes a hot stamping roller 41, a heating component for heating the hot stamping roller 41, and a first lifting component 42 for controlling the rise and fall of the hot stamping roller 41. The hot stamping roller 41 is arranged above the second conveying unit 2; the first lifting component 42 can control the rise and fall of the hot stamping roller 41. When the hot stamping roller 41 descends, it can press down the hot stamping foil, so that the hot stamping foil contacts the base paper, and then the hot stamping foil and the base paper are compounded together to form a pattern on the base paper; the heating component can heat the hot stamping roller 41. When hot stamping certain printing materials, the hot stamping roller 41 is heated to a certain temperature, which can achieve a better hot stamping effect. The heating component can be an electromagnetic heating component, or a heating tube arranged inside the hot stamping roller 41. Of course, other forms of heating components are also possible.

[0026] Specifically, Figure 1As shown, the blowing unit 5 is located on the side away from the first conveying unit 1, and the blowing unit 5 is arranged between the third conveying unit 3 and the second conveying unit 2. The first conveying unit 1 and the second conveying unit 2 transport in the same direction, and the first conveying unit 1 and the second conveying unit 2 are both conveyor belts; the conveyor belts can be conveyor belts with holes. The third conveying unit 3 includes an unwinding roller 31 and a winding roller 32 arranged on both sides of the hot stamping unit 4, and the winding roller 32 and the blowing unit 5 are located on the same side. In this embodiment, the blowing direction of the blowing unit 5 is opposite to the transport direction of the first conveying unit 1. The hot stamping material moves along the transport direction after hot stamping. Since the hot stamping foil is rolled up obliquely, a certain acute angle is formed between the hot stamping foil and the substrate after hot stamping. The blowing unit 5 blows obliquely toward the hot stamping position 6, and the wind blows in along the acute angle between the hot stamping foil and the substrate after hot stamping, so that the substrate is separated from the hot stamping foil.

[0027] Specifically, Figure 2 and Figure 3 As shown, the third conveying unit 3 also includes an auxiliary tensioning structure, which includes a rotatably arranged roller assembly 33 and a return assembly 34 for controlling the roller assembly 33 to return to its original position. The roller assembly 33 includes two tensioning rollers 331 arranged at intervals and two rotating rods 332 arranged at intervals. The two ends of the tensioning roller 331 are fixedly connected to the rotating rod 332, and the return assembly 19 is fixedly connected to the middle of the rotating rod 332. The return structure can be a return spring or a torque motor. When forward transmission is performed, the roller assembly 33 is subjected to the force of tension, and the force of the return structure is overcome to cause the roller assembly 33 to rotate. When pulling back, the clamping conveying roller 35 is quickly reversed, so that the hot stamping foil is reversely transmitted. As the tension disappears, the roller assembly 33 is reversed under the force of the return structure. Since the clamping and conveying rollers 35 are rotating in the opposite direction at a rapid speed, and the unwinding motor is rewinding, the hot stamping foil may be tightened or loosened. The rotation of the roller assembly 33 can be used to compensate for the shrinkage or relaxation margin, so that the hot stamping foil is better in a tensioned state during the retraction process, which facilitates the smooth conveyance of the hot stamping foil.

[0028] Specifically, Figure 2 and Figure 3 As shown, the third conveying unit 3 also includes a clamping conveying pair of rollers 35, and the clamping conveying pair of rollers 35 includes a second lifting component 351, a fixed roller 352 and a lifting roller 353. The lifting roller 353 is rotatably connected to the displacement end of the second lifting component 351, and a clamping position is formed between the fixed roller 352 and the lifting roller 353; when specifically connected, the cold stamping machine can have two side walls arranged at intervals; the unwinding roller 31, the winding roller 32, and the clamping conveying pair of rollers 35 can be arranged on the side wall; when it is necessary to convey the hot stamping foil, the second lifting unit drives the lifting roller 353 to clamp the hot stamping foil together with the winding roller 32; the second lifting unit can be a cylinder or a hydraulic cylinder.

[0029] Specifically, Figure 2 and Figure 3 As shown, the third conveying unit 3 further includes a first servo motor 36 for controlling the unwinding roller 31, a second servo motor 37 for controlling the winding roller 32, and a third servo motor for controlling the clamping conveying roller 35. The working torques of the first servo motor 36 and the second servo motor 37 are both smaller than the working torque of the third servo motor. The third servo motor provides the main power for the fixed roller 352 to convey the hot stamping foil, and the lifting roller 353 is driven. The first servo motor 36, the second servo motor 37 and the third servo motor can be installed on the side wall. The third servo motor is controlled by a signal to perform precise forward and reverse movements. The first servo motor 36 and the second servo motor 37 are set to rotate in a directional manner. The fixed roller 352 and the lifting roller 353 are both rubber roller bodies. After the fixed roller 352 and the lifting roller 353 clamp the hot stamping foil, when they rotate, the hot stamping foil can be driven to move by friction. The third servo motor forms a transmission connection with the two clamping conveying rollers 35 through a transmission structure such as a synchronous belt, a chain, and a gear. Specifically, a synchronous belt pulley may be connected to the output shaft of the third servo motor, and a synchronous belt tensioning wheel is arranged on the side wall, which is transmission-connected with the two clamping transmission roller pairs 35 through the synchronous belt.

[0030] When the hot stamping foil needs to be conveyed in the forward direction, the third servo motor drives the clamping conveying roller 35 to rotate forward, driving the hot stamping foil to be conveyed forward; the set direction of the second servo motor 37 is also forward rotation, which is the same as the direction of the winding roller 32, and is used for winding; the set direction of the first servo motor 36 is reverse rotation, but because the working torque of the first servo motor 36 is smaller than the working torque of the third servo motor, the unwinding roller 31 is subjected to the combined action of the third servo motor and the first servo motor 36 and rotates forward for unwinding. At this time, the actual direction of the unwinding roller 31 is opposite to the set direction of the first servo motor 36, which is used to assist the hot stamping foil in a tensioned state.

[0031] When it is necessary to pull back, that is, to reversely transmit the hot stamping foil, the third servo motor drives the clamping and transmitting rollers 35 to rotate in the opposite direction, driving the hot stamping foil to be transmitted backward; the set direction of the second servo motor 37 is also forward rotation, but because the working torque of the second servo motor 37 is smaller than the working torque of the third servo motor, the winding roller 32 rotates in the opposite direction under the combined action to unwind; the set direction of the first servo motor 36 is reverse rotation, and the unwinding roller 31 rotates in the opposite direction under the combined action of the third servo motor and the first servo motor 36 to rewind.

[0032] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. An anti-adhesion cold stamping device, characterized in that: It includes a first conveying unit, a second conveying unit, a third conveying unit, a hot stamping unit and a blowing unit. The first conveying unit is used to convey the printing material, the third conveying unit is used to convey the hot stamping foil, one end of the first conveying unit is connected with the second conveying unit, the hot stamping unit is located above the second conveying unit, the hot stamping foil passes between the second conveying unit and the hot stamping unit, a hot stamping position is formed between the hot stamping unit and the second conveying unit, and the blowing unit faces the hot stamping position.

2. The anti-adhesion cold stamping device according to claim 1, characterized in that: The hot stamping unit comprises a hot stamping roller, a heating component for heating the hot stamping roller, and a first lifting component for controlling the lifting of the hot stamping roller. The hot stamping roller is arranged above the second conveying unit.

3. The anti-adhesion cold stamping device according to claim 1, characterized in that: The blowing unit is located at a side away from the first conveying unit, and the blowing unit is arranged between the third conveying unit and the second conveying unit.

4. The anti-adhesion cold stamping device according to claim 3, characterized in that: The first conveying unit and the second conveying unit transport in the same direction, and both the first conveying unit and the second conveying unit are conveyor belts.

5. The anti-adhesion cold stamping device according to claim 3, characterized in that: The third conveying unit comprises an unwinding roller and a winding roller arranged on both sides of the hot stamping unit, and the winding roller and the blowing unit are located on the same side.

6. The anti-adhesion cold stamping device according to claim 5, characterized in that: The third conveying unit further comprises a pair of roller assemblies which are rotatably arranged and a restoring assembly which controls the pair of roller assemblies to return to their original positions.

7. The anti-adhesion cold stamping device according to claim 6, characterized in that: The roller assembly comprises two tensioning rollers arranged at intervals and two rotating rods arranged at intervals. Both ends of the tensioning roller are fixedly connected to the rotating rods, and the return assembly is fixedly connected to the middle of the rotating rods.

8. The anti-adhesion cold stamping device according to claim 5, characterized in that: The third conveying unit also includes a clamping conveying pair of rollers, which includes a second lifting assembly, a fixed roller and a lifting roller. The lifting roller is rotatably connected to the displacement end of the second lifting assembly, and a clamping position is formed between the fixed roller and the lifting roller.

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