Printing concave-convex device

Abstract

The invention relates to the technical field of printing equipment, in particular to a printing concave-convex device. The device comprises an unwinding mechanism, a roller frame and a printing mechanism which are sequentially arranged, a deviation rectifying mechanism is arranged above the unwinding mechanism, the deviation rectifying mechanism achieves automatic deviation rectifying of paper through an adjusting driving mechanism between a sliding support and a fixed support, and the printing mechanism comprises a plurality of impressing rollers and plate rollers. Precise printing positioning and pressure adjustment are achieved through the transmission gear and the adjusting bolt, in addition, the printing plate with the adjustable height is arranged in the plate roller, and the printing quality and flexibility are improved. The effect of improving the printing precision, stability and production efficiency is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of printing equipment, and in particular to a printing embossing device. Background Art

[0002] At present, most of the cigarette labels on the market are designed with embossing technology to enhance the three-dimensional beauty of the appearance of the cigarette labels. These embossed patterns are pressed by a special cigarette pack embossing pattern processing workstation installed on the post-printing station of the printing press after the cigarette packs are printed by the cigarette pack printing machine. When a embossing pattern is needed, the embossing workstation is pushed in to realize the embossing three-dimensional printing function, otherwise the workstation is removed from the printing production line.

[0003] The working principle of the concave-convex three-dimensional printing device is as follows: 1. Make the corresponding concave and convex molds according to the designed graphics. These molds are usually composed of concave and relief plates, and the two need to be matched with high precision.

[0004] 2. Place the material: Place the material (web) that needs to be pressed with a concave and convex pattern on the workbench of the concave and convex device and position it properly.

[0005] 3. Apply pressure: Start the concave-convex device, the machine will drive the concave-convex mold to move downward and apply a certain amount of pressure on the material (web).

[0006] 4. Forming a concave-convex pattern: Under the action of pressure, the surface of the material (web) will undergo plastic deformation, thus forming a concave-convex pattern corresponding to the concave-convex mold.

[0007] 5. Finishing the process: When the concave-convex pattern is pressed, the concave-convex device stops applying pressure and lifts the concave-convex mold. At this point, the desired concave-convex pattern has been successfully pressed on the surface of the material.

[0008] When the embossing machine is pressing the embossing pattern on cigarette packs, there may be a variety of problems: 1. The pattern is not clear 2. The pattern is deformed 3. The pattern surface is rough 4. The pattern position is offset The pattern position deviation is caused by inaccurate material positioning, improper mold installation and other problems. To solve this problem, it is necessary to correct the concave and convex device at each link to ensure accurate material positioning, regularly check the mold installation and enhance the stability of the machine. Summary of the invention

[0009] In order to solve the problem in the prior art that the existing three-dimensional printing device is prone to produce defects during printing, resulting in low printing accuracy of three-dimensional patterns, the present application provides a printing concave-convex device.

[0010] A printing embossing device provided in the present application adopts the following technical solution: a printing embossing device, comprising a reeling mechanism, a roller frame and a printing mechanism arranged in sequence, a correction mechanism is arranged above the reeling mechanism, the correction mechanism comprises a sliding bracket and a fixed bracket arranged up and down, a slide rail is arranged above the fixed bracket, the sliding bracket is slidably connected to the fixed bracket through the slide rail, an adjusting drive mechanism is provided between the sliding bracket and the fixed bracket for driving the sliding bracket to reciprocate along the slide rail, and two conveying rollers are rotatably arranged on the sliding bracket.

[0011] By adopting the above technical solution, accurate deviation correction of the material during unwinding is achieved, ensuring the stability and flatness of the material during transportation, and improving the printing quality. Specifically, the slide rail connection between the sliding bracket and the fixed bracket enables the sliding bracket to move freely in the horizontal direction, effectively correcting the material deviation. The adjustment drive mechanism further ensures the precise control of the sliding bracket, so that the material always remains in the predetermined position, avoiding printing defects caused by deviation.

[0012] Optionally, the adjustment drive mechanism adopts a cylinder, one end of the cylinder is fixedly connected to the fixed bracket, and the working end of the cylinder is connected to the sliding bracket.

[0013] By adopting the above technical solution, the cylinder is used as an adjustment drive mechanism to quickly and accurately adjust the position of the sliding bracket, ensure the stability and accuracy of the material transmission process, and improve the printing quality. Specifically, one end of the cylinder is fixedly connected to the fixed bracket, and the working end is connected to the sliding bracket. It can respond quickly when needed and push the sliding bracket to reciprocate along the slide rail, effectively correcting material deviation and avoiding quality problems caused by material deviation during printing.

[0014] Optionally, a sensor assembly is provided inside the unwinding mechanism, and the sensor assembly includes a guide rail fixedly provided inside the unwinding mechanism, a sliding seat is slidably provided on the guide rail, and a sensor is fixedly mounted on the sliding seat.

[0015] By adopting the above technical solution, the sensor assembly can monitor the position change of the material in real time during the unwinding process, ensure the precise alignment of the material during the unwinding process, and avoid printing quality problems caused by material deviation. Specifically, the sensor is installed on a sliding seat, which can slide on the guide rail, so that the sensor can move with the change of the material position, thereby achieving more accurate detection and control.

[0016] Optionally, the printing mechanism comprises a frame, and a first embossing roller, a first plate roller, a second plate roller and a second embossing roller are rotatably arranged in sequence from top to bottom inside the frame.

[0017] By adopting the above technical solution, the printing mechanism realizes the function of multi-layer printing by arranging the first embossing roller, the first plate roller, the second plate roller and the second embossing roller in sequence from top to bottom in the frame, thereby improving the printing quality and efficiency.

[0018] Optionally, both ends of the first embossing roller, the first version roller, the second version roller and the second embossing roller are connected to mounting seats, two vertical guide rails are symmetrically arranged on both sides of the frame, and the mounting seats are slidably connected to the vertical guide rails.

[0019] By adopting the above technical solution, the first embossing roller, the first plate roller, the second plate roller and the second embossing roller are connected to the mounting seat at both ends, and two vertical guide rails are symmetrically arranged on both sides of the frame. The mounting seat is slidably connected to the vertical guide rails, so that each roller can accurately adjust the position along the vertical direction, ensuring that the rollers are closely fitted during the printing process, and improving the printing accuracy and quality. At the same time, this design is also convenient for maintenance and replacement of parts, and improves the reliability and service life of the equipment.

[0020] Optionally, adjusting bolts are rotatably provided on both sides of the frame, the adjusting bolts abut against the upper surface of the uppermost mounting seat, and adjusting cylinders are provided above both sides of the frame, the adjusting cylinders drive the mounting seat to move up and down.

[0021] By adopting the above technical solution, the three-dimensional printing device can achieve precise adjustment of the plate roller position. Specifically: the adjustment bolt is in contact with the upper surface of the uppermost mounting seat, so that the position of the mounting seat can be fine-tuned by manually rotating the adjustment bolt, thereby accurately controlling the relative positions of the first embossing roller, the first plate roller, the second plate roller, and the second embossing roller to ensure printing accuracy; the adjustment cylinders arranged above both sides of the frame can quickly drive the mounting seat to move up and down, achieve rapid coarse adjustment, and improve production efficiency; this combination method not only ensures the flexibility and accuracy of adjustment, but also improves the convenience of operation.

[0022] Optionally, the first version roller and the second version roller are connected to each other through a first transmission gear and a second transmission gear.

[0023] By adopting the above technical solution, the transmission connection between the first plate roller and the second plate roller is more stable and reliable, ensuring the synchronous operation of the two plate rollers during the printing process, and improving the printing accuracy and efficiency. Specifically, the transmission connection mode of the first transmission gear and the second transmission gear makes the power transmission more stable, reducing the printing quality problems caused by transmission errors.

[0024] Optionally, the first transmission gear is formed by a combination of a first gear and a second gear that are coaxially connected, and the first teeth and the second teeth on the first gear and the second gear are staggered.

[0025] By adopting the above technical solution, the first transmission gear is formed by a combination of a first gear and a second gear that are coaxially connected, and the first teeth and the second teeth on the first gear and the second gear are staggered, thereby reducing the gap between the teeth on the first transmission gear, making the meshing accuracy of the first transmission gear and the second transmission gear higher, thereby improving the transmission accuracy of the first transmission gear and the second transmission gear.

[0026] Optionally, the first printing roller and the second printing roller are provided with matching printing plates.

[0027] By adopting the above technical solution, the first plate roller and the second plate roller are provided with matching printing plates, so that the two plate rollers can be accurately matched during the printing process, ensuring the accuracy and consistency of the printed pattern and improving the printing quality. At the same time, the matching printing plate design can effectively reduce the error in the printing process and improve production efficiency.

[0028] Optionally, a movable seat is provided inside the first plate roller and the second plate roller corresponding to the printing plate, the printing plate and the movable seat are detachably connected, and the movable seat can move radially to adjust the height of the printing plate embossed on the surface of the plate roller.

[0029] By adopting the above technical solution, the movable seat arranged inside the first plate roller and the second plate roller can realize a detachable connection between the printing plate and the movable seat, and the movable seat can move radially to adjust the height of the printing plate protruding from the roller surface. This design allows the height of the printing plate to be flexibly adjusted to adapt to printing materials of different thicknesses, thereby improving printing accuracy and quality. In addition, the detachable connection design facilitates the replacement and maintenance of the printing plate, thereby improving the flexibility of use and convenience of maintenance of the equipment.

[0030] In summary, the present application includes at least one of the following beneficial technical effects: 1. The correction mechanism is connected through the slide rail between the sliding bracket and the fixed bracket, and the sliding bracket is driven to freely reciprocate along the slide rail by adjusting the driving mechanism, which effectively solves the deviation problem of printing materials during transmission and improves the stability and printing accuracy of printing materials; 2. The sensor assembly installed inside the unwinding mechanism can monitor the position change of the material in real time, and feed back the data to the control system through the sensor on the sliding seat, further enhancing the response speed and accuracy of the correction mechanism and ensuring the precise alignment of the printed material; 3. The design of the multi-level impression roller and plate roller in the printing mechanism, as well as the control of the up and down movement of each component through adjusting bolts and adjusting cylinders, enables the printing pressure and position to be flexibly adjusted, thereby improving the printing quality and production efficiency; 4. A movable seat capable of radial adjustment is arranged on the plate roller, and the printing plate is installed on the movable seat. Through radial adjustment of the movable seat, the gap between two matching printing plates can be adjusted, thereby improving the printing effect of the printed pattern, making the plate roller suitable for printing patterns of different thicknesses, and expanding the application range of the printing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main structure of a printing concave-convex device in an embodiment of the present application.

[0032] Figure 2 It is a left-side structural schematic diagram of a printing concave-convex device in an embodiment of the present application.

[0033] Figure 3 It is a schematic diagram of a top view of the structure of a correction mechanism of a printing convexoconcave device in an embodiment of the present application.

[0034] Figure 4 It is a schematic diagram of the main structure of a printing mechanism of a printing concave-convex device in an embodiment of the present application.

[0035] Figure 5 It is a schematic diagram of the right view of the structure of a printing machine mechanism of a printing concave-convex device in an embodiment of the present application.

[0036] Figure 6 It is a schematic diagram of the first transmission gear structure of a printing concave-convex device in an embodiment of the present application.

[0037] Figure 7 It is a schematic diagram of the structure of the first plate roller of a printing concave-convex device in an embodiment of the present application.

[0038] Figure 8 This is a schematic diagram of the internal structure of the first plate roller of a printing convexoconcave device in an embodiment of the present application.

[0039] Explanation of the reference numerals: 1. unwinding mechanism; 11. guide rail; 12. sensor; 13. sliding seat; 2. roller frame; 3. printing mechanism; 31. frame; 32. vertical guide rail; 33. mounting seat; 34. first embossing roller; 35. first plate roller; 351. plate roller body; 352. printing plate; 353. movable seat; 354. adjusting ring; 3541. raised portion; 355. adjusting screw; 36. second plate roller; 37. second embossing roller; 38. first transmission gear; 381. first gear; 382. second gear; 383. first tooth; 384. second tooth; 39. second transmission gear; 310. adjusting cylinder; 311. adjusting bolt; 312. electric control box; 4. deviation correction mechanism; 41. sliding bracket; 42. fixed bracket; 43. conveying roller; 44. guide roller; 45. slide rail; 46. adjusting drive mechanism. DETAILED DESCRIPTION

[0040] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0041] See also Figure 1-8 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical content disclosed in this application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this application. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this application without substantially changing the technical content.

[0042] The following is combined with Figure 1-8 This application is described in further detail.

[0043] This embodiment discloses a concave-convex printing device.

[0044] Reference Figure 1 A printing convex-concave device comprises an unwinding mechanism 1, a deviation correction mechanism 4 is arranged above the unwinding mechanism 1, a roller frame 2 is arranged on one side of the unwinding mechanism 1, a printing mechanism 3 is arranged on one side of the roller frame 2, and a plurality of conveying rollers are arranged in the middle of the roller frame 2 for conveying cigarette packs and adjusting the tension in the printing equipment.

[0045] Reference Figure 2 and Figure 3The deviation correction mechanism 4 includes a fixed bracket 42, which is fixedly installed above the unwinding mechanism 1 by bolts, a sliding bracket 41 is arranged above the fixed bracket 42, two slide rails 45 are arranged in parallel on the upper surface of the fixed bracket 42, and the sliding bracket 41 is slidably arranged on the slide rail 45. A cylinder is fixedly installed in the middle of the fixed bracket 42, and the working end of the cylinder is connected to the middle of the sliding bracket 41. The sliding bracket 41 is driven by the cylinder to reciprocate along the slide rail 45 above the fixed bracket 42. Two conveying rollers 43 are rotatably arranged above the sliding bracket 41, and a guide roller 44 is arranged on one side of the fixed bracket 42. A sensor component is arranged inside the unwinding mechanism 1, and the sensor component includes a sensor component arranged in the unwinding mechanism 1, a guide rail 11 is slidably connected to a sliding seat 13, a sensor 12 is mounted on the sliding seat 13, a scale is provided on the guide rail 11, a locking bolt capable of fixing the sliding seat 13 is provided on the sliding seat 13, an identification barcode is provided on the edge of the cigarette pack, during printing, the position of the sensor 12 is adjusted by the sliding seat 13 so that the sensor 12 corresponds to the position of the identification barcode on the cigarette pack, and then the position of the sliding seat is fixed, during the transportation of the cigarette pack, the sensor 12 identifies the identification barcode on the cigarette pack, when the sensor 12 identifies that the position of the identification barcode is offset, it means that the position of the cigarette pack is offset during transportation, and then the sliding bracket 41 is driven by the cylinder to move along the slide rail 45 to adjust the position of the cigarette pack.

[0046] Reference Figure 4 , Figure 5 and Figure 6The printing mechanism 3 includes a frame 31, and a first embossing roller 34, a first version roller 35, a second version roller 36 and a second embossing roller 37 are sequentially arranged in the middle of the frame 31 from top to bottom. Two symmetrical vertical guide rails 32 are arranged on both sides of the frame 31. The first embossing roller 34, the first version roller 35, the second version roller 36 and the second embossing roller 37 are connected to mounting seats 33 at both ends. The mounting seats 33 are slidably arranged between the two vertical guide rails 32. An adjusting bolt 311 and an adjusting cylinder 310 are arranged above the frame 31. The adjusting bolt 311 is used to adjust the distance between two adjacent mounting seats 33, and the adjusting cylinder 310 is used to press the two adjacent mounting seats 33, so that the first embossing roller 34, the first version roller 35, the second version roller 36 and the second embossing roller 37 are closely fitted to the cigarette package during printing. Pressure is applied, and an electric control box 312 for driving the printing mechanism 3 is provided on one side of the frame 31. One end of the first version roller 35 and the second version roller 36 are connected by a first transmission gear 38 and a second transmission gear 39. The first transmission gear 38 is formed by a combination of a first gear 381 and a second gear 382 connected coaxially. The first tooth 383 on the first gear 381 and the second tooth 384 on the second gear 382 are staggered. When the first transmission gear 38 and the second transmission gear 39 are meshed, the first tooth 383 and the second tooth 384 are both meshed with the teeth on the second transmission gear 39, reducing the meshing clearance between the first transmission gear 38 and the second transmission gear 39, improving the transmission accuracy and transmission efficiency, ensuring the precise matching rotation of the first version roller 35 and the second version roller 36, and improving the printing accuracy.

[0047] Reference Figure 7 and Figure 8 The first plate roller 35 and the second plate roller 36 have the same structure. The first plate roller 35 includes a plate roller body 351. A plurality of printing plates 352 are arranged on the plate roller body 351. A movable seat 353 is arranged inside the plate roller body 351 corresponding to the printing plates 352. The movable seat 353 moves freely in the radial direction inside the plate roller body 351. An adjusting ring 354 is rotatably sleeved inside the plate roller body 351. A protrusion 3541 is arranged on the adjusting ring 354 corresponding to the movable seat 353. When the adjusting ring 354 rotates, the protrusion 3541 3541 is in contact with the movable seat 353, and the movable seat 353 is pushed outward by the cam action, so as to adjust the height of the printing plate 352 protruding from the surface of the printing roller body 351. An adjusting screw 355 is arranged on the surface of the printing roller body 351, and a micro gear is connected to the end of the adjusting screw 355. One side of the adjusting ring 354 is provided with teeth, which mesh with the micro gear. When the adjusting screw 355 is rotated, the adjusting ring 354 is driven to rotate through the transmission of the micro gear and the teeth, so as to adjust the printing plate 352.

[0048] The implementation principle of a printing embossing device in the present embodiment is as follows: when three-dimensional printing is performed on a cigarette pack, the cigarette pack is pulled to the correcting mechanism 4 through the unwinding mechanism 1, and then passes through the roller frame 2 in sequence to enter the printing mechanism 3. During the printing process, the sensor 12 recognizes the identification barcode on the cigarette pack. When the sensor recognizes that the position of the cigarette pack is offset, the cylinder in the correcting mechanism 4 drives the sliding bracket 41 to move and adjust the position, thereby adjusting the position of the cigarette pack, so that the cigarette pack is accurately transported to the printing mechanism 3 for printing operations, thereby improving the printing accuracy of the cigarette pack.

[0049] In summary, the correction mechanism in the present application is connected by a slide rail between a sliding bracket and a fixed bracket, and the sliding bracket is driven to freely reciprocate along the slide rail by adjusting the driving mechanism, which effectively solves the offset problem of the printing material during the transmission process and improves the stability and printing accuracy of the printing material; the sensor assembly arranged inside the unwinding mechanism can monitor the position change of the material in real time, and feed back the data to the control system through the sensor on the sliding seat, further enhancing the response speed and accuracy of the correction mechanism, and ensuring the precise alignment of the printing material; the design of the multi-stage embossing roller and the plate roller in the printing mechanism, and the control of the up and down movement of each component by adjusting the bolt and the adjusting cylinder, so that the printing pressure and position can be flexibly adjusted, thereby improving the printing quality and production efficiency; a movable seat that can be adjusted radially is arranged on the plate roller, and the printing plate is installed on the movable seat. Through the radial adjustment of the movable seat, the gap between the two matching printing plates is adjusted, which improves the printing effect of the printing pattern, so that the plate roller can be suitable for printing patterns of different thicknesses, and the scope of application of the printing device is expanded. Therefore, the present application effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0050] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present application shall still be included in the protection scope of the present application.

Claims

1. A printing convexoconcave device, comprising an unwinding mechanism (1), a roller frame (2) and a printing mechanism (3) arranged in sequence, characterized in that: A deviation correction mechanism (4) is arranged above the unwinding mechanism (1), and the deviation correction mechanism (4) comprises a sliding bracket (41) and a fixed bracket (42) arranged above and below, a slide rail (45) is arranged above the fixed bracket (42), the sliding bracket (41) is slidably connected to the fixed bracket (42) via the slide rail (45), an adjustment drive mechanism (46) is arranged between the sliding bracket (41) and the fixed bracket (42) for driving the sliding bracket (41) to reciprocate along the slide rail (45), and two conveying rollers (43) are rotatably arranged on the sliding bracket (41).

2. A printing concave-convex device according to claim 1, characterized in that: The adjustment drive mechanism (46) adopts a cylinder, one end of the cylinder is fixedly connected to the fixed bracket (42), and the working end of the cylinder is connected to the sliding bracket (41).

3. A printing concave-convex device according to claim 2, characterized in that: A sensor assembly is arranged inside the unwinding mechanism (1), the sensor assembly comprising a guide rail (11) fixedly arranged inside the unwinding mechanism (1), a sliding seat (13) slidably arranged on the guide rail (11), and a sensor (12) fixedly mounted on the sliding seat (13).

4. A printing concave-convex device according to claim 1, characterized in that: The printing mechanism (3) comprises a frame (31), wherein a first embossing roller (34), a first plate roller (35), a second plate roller (36), and a second embossing roller (37) are rotatably arranged in sequence from top to bottom within the frame (31).

5. A printing concave-convex device according to claim 4, characterized in that: Both ends of the first embossing roller (34), the first plate roller (35), the second plate roller (36) and the second embossing roller (37) are connected to a mounting seat (33); two vertical guide rails (32) are symmetrically arranged on both sides of the frame (31); and the mounting seat (33) is slidably connected to the vertical guide rails (32).

6. A printing concave-convex device according to claim 5, characterized in that: Adjustment bolts (311) are rotatably provided on both sides of the frame (31), the adjustment bolts (311) abutting against the upper surface of the uppermost mounting seat (33), and adjustment cylinders (310) are provided above both sides of the frame (31), the adjustment cylinders (310) driving the mounting seat (33) to move up and down.

7. A printing concave-convex device according to claim 6, characterized in that: The first plate roller (35) and the second plate roller (36) are connected in transmission via a first transmission gear (38) and a second transmission gear (39).

8. A printing concave-convex device according to claim 7, characterized in that: The first transmission gear (38) is formed by a combination of a first gear (381) and a second gear (382) that are coaxially connected, and the first teeth (383) and the second teeth (384) on the first gear (381) and the second gear (382) are staggered.

9. A printing concave-convex device according to claim 8, characterized in that: The first printing roller (35) and the second printing roller (36) are provided with matching printing plates (352).

10. A printing concave-convex device according to claim 9, characterized in that: A movable seat (353) is provided inside the first plate roller (35) and the second plate roller (36) corresponding to the printing plate (352); the printing plate (352) and the movable seat (353) are detachably connected; the movable seat (353) is capable of moving radially to adjust the height of the printing plate (352) protruding from the printing roller surface.

Images