A printing in-line embossing device suitable for use in a gravure press

Abstract

This invention relates to the field of printing press technology and discloses an inline embossing / debossing device suitable for gravure printing machines. The device includes an embossing / debossing assembly mounted on a conveyor belt. From bottom to top, the assembly comprises a lower plate, an upper plate, and a top frame. The lower plate is mounted on the conveyor belt, with its upper surface flush with the conveyor belt's upper surface. A guide rail is provided between the lower plate and the top frame, and the upper plate slides along the guide rail. A pressure motor is mounted on the top frame, and a pressure shaft is located below the pressure motor. The upper plate is fixedly connected to the bottom of the pressure shaft. A horizontal array of lower plate modules is arranged at the top of the through-hole of the lower plate, each module including a lower plate print body and a lower plate housing. A horizontal array of upper plate modules is arranged at the bottom of the through-hole of the upper plate, each module including an upper plate print body and an upper plate housing. This inline embossing / debossing device for gravure printing machines has the advantages of adjustable printing depth, detachable templates, long printing length, and high space utilization.

Description

Technical Field

[0001] This invention relates to the field of printing press technology, specifically to an inline embossing / debossing device suitable for gravure printing machines. Background Technology

[0002] Inline embossing equipment mainly refers to embossing machines. These machines can operate in conjunction with gravure printing machines to create embossed effects on printed materials. Embossing machines use specific embossing processes to create a raised or recessed surface on printed materials, enhancing their texture and visual appeal. Embossing machines play a crucial role in gravure printing production lines, enabling efficient and precise embossing and improving the quality and added value of printed materials. Furthermore, inline operation makes the entire printing process smoother and more efficient, reducing production costs and increasing productivity.

[0003] Patent application CN201410588853.1 discloses an inline embossing device for a roll-to-roll printing machine, which includes a support frame, a support plate, an upper roller, and a lower roller on the support frame. The upper roller and the lower roller are both connected to the support frame via roller shafts. Gears are provided at both ends of the upper roller and the lower roller, and the gears on the upper roller mesh with the gears on the lower roller. The upper roller has a preset recessed pattern or raised pattern, and the lower roller has a raised pattern or recessed pattern that matches the pattern on the upper roller. The gears of the upper roller or the lower roller are driven by a drive motor, which is mounted on the support frame. This invention uses a roll-to-roll structure to print on cigarette boxes, which greatly improves printing efficiency and saves a lot of time. At the same time, the roll-to-roll structure makes the cigarette boxes less prone to deformation.

[0004] The aforementioned patent does not allow for adjustment of the size of the embossed effect. However, another patent application, CN200720015639.2, discloses an embossing printing machine. The technical solution employed is as follows: a support frame has pressure rollers; lifting sliders are movably connected to both ends of the frame; a lifting screw is threadedly connected to the frame; the lifting screw passes through the frame and connects to the lifting slider and a height adjustment handwheel; a roller shaft is connected to the frame; a pressure roller is fitted onto the roller shaft; one end of the upper roller shaft is connected to the lifting slider, and the other end passes through the lifting slider and connects to a large gear; the large gear meshes with a small gear; the teeth on both the large and small gears are helical; the shaft on the small gear is connected to the lifting slider and a power wheel; and scales are provided at both ends of the frame, with scale pointers connected to the lifting slider. This invention integrates the gear transmission part and the pressure roller lifting part, enabling accurate control of the pressure roller's pressure and improving the quality of the printed embossing.

[0005] In the aforementioned patent, the printing pressure is adjusted by increasing the pressure of the pressure roller. However, the size of the embossing effect cannot be adjusted. Furthermore, changes in the pressure of the pressure roller will affect the pressure on the unprinted areas of the printing plate. Normally, the distance between the upper and lower rollers is the thickness of the printing plate. Changing the pressure of the pressure roller will affect the distance between the two rollers. At the same time, the printing plate of the roller-type printing needs to take into account the curvature of the roller, and the printing depth cannot be effectively adjusted. Moreover, the longer the printing length, the larger the required roller diameter, resulting in low space utilization. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides an inline embossing device suitable for gravure printing machines, which has the advantages of adjustable printing depth, detachable template, long printing length, and high space utilization, thus solving the problem of the inability to adjust the size of the embossing effect.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: an inline embossing device for gravure printing machines, comprising an embossing device, wherein the embossing device is disposed on a conveyor belt, and the embossing device comprises a lower plate, an upper plate, and a top frame from bottom to top. The lower plate is mounted on the conveyor belt, and the upper surface of the lower plate is on the same horizontal plane as the upper surface of the conveyor belt. Multiple vertical guide rails are disposed between the lower plate and the top frame. The upper plate slides on the guide rails. A pressure motor is disposed on the top frame, and a pressure shaft is disposed below the pressure motor. The bottom of the pressure shaft is fixedly connected to the upper plate.

[0010] The lower plate has a horizontal array of lower plate modules at the top of the through hole. Each lower plate module includes a lower plate body and a lower plate shell. The upper surface of the lower plate shell is flush with the upper surface of the lower plate. The lower plate body slides up and down in a corresponding shaped through hole inside the lower plate shell. The upper plate has a horizontal array of upper plate modules at the bottom of the through hole. Each upper plate module includes an upper plate body and an upper plate shell. The lower surface of the upper plate shell is flush with the lower surface of the upper plate. The upper plate body slides up and down in a corresponding shaped through hole inside the upper plate shell.

[0011] Preferably, a lower plate connecting rod is fixedly connected to the bottom of the lower plate printing body, the bottom of the lower plate connecting rod is fixedly connected to the lower plate moving plate, a lower plate push-pull rod is fixedly connected below the lower plate moving plate, and the lower end of the lower plate push-pull rod is connected to the lower plate push-pull motor; an upper plate connecting rod is fixedly connected to the top of the upper plate printing body, the top of the upper plate connecting rod is fixedly connected to the upper plate moving plate, an upper plate push-pull rod is fixedly connected above the upper plate moving plate, and the upper end of the upper plate push-pull rod is connected to the upper plate push-pull motor.

[0012] Preferably, the lower plate is provided with a lower plate fixing plate, and the bottom of each lower plate housing is detachably mounted on the lower plate fixing plate, with the lower plate connecting rod passing through the corresponding through hole in the lower plate fixing plate; the upper plate is provided with an upper plate fixing plate, and the top of each upper plate housing is detachably mounted on the upper plate fixing plate, with the upper plate connecting rod passing through the corresponding through hole in the upper plate fixing plate.

[0013] Preferably, a lower cover plate is provided at the bottom of the lower plate and an upper cover plate is provided at the top of the upper plate. The lower cover plate and the upper cover plate are fixedly connected to the lower plate and the upper plate by threads. The lower plate push-pull motor is installed at the bottom of the lower cover plate and the lower plate push-pull rod passes through the lower cover plate. The upper plate push-pull motor is installed at the top of the upper cover plate and the upper plate push-pull rod passes through the upper cover plate.

[0014] Preferably, within a lower plate module, the height of the top surface of the lower plate body is lower than the height of the upper surface of the lower plate shell; within an upper plate module, the height of the bottom surface of the upper plate body is lower than the height of the lower surface of the upper plate shell; the height of the protrusion of the upper plate body is the same as the height of the indentation of the lower plate body, and the two corresponding lower plate modules and upper plate modules have the same shape.

[0015] Preferably, each upper push-pull motor and the lower push-pull motor are connected to the same controller, and the upper push-pull motor and the lower push-pull motor push or pull up or down the same distance synchronously.

[0016] Preferably, the upper plate is provided with at least two upper plate push-pull motors and at least two corresponding upper plate push-pull rods. The upper plate push-pull motors are located at the edge of the upper plate cover, and the middle position of the upper plate cover is fixedly connected to the bottom of the pressure shaft.

[0017] Preferably, the top surface of the lower plate and the bottom surface of the upper plate are each provided with two symmetrical auxiliary conveying devices. The upper surface of the auxiliary conveying device on the lower plate is higher than the upper surface of the lower plate, and the lower surface of the auxiliary conveying device on the upper plate is lower than the lower surface of the upper plate. The transmission direction of each auxiliary conveying device is consistent with the transmission direction of the conveyor belt.

[0018] Preferably, the conveyor belt is provided with multiple support legs below it, each support leg is provided with a caster wheel at its bottom, and a conveyor motor is fixed on the support leg, the conveyor motor driving the conveyor belt.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides an inline embossing / debossing device suitable for gravure printing machines, which has the following beneficial effects:

[0021] 1. This is applicable to inline gravure printing equipment. It consists of a lower plate fixed on a conveyor belt and an upper plate that can move up and down. The upper plate presses down onto the surface of the lower plate. The upper and lower plates are respectively equipped with lower plate modules and lower plate fixing plates with corresponding shapes of protrusions and depressions. The lower plate print bodies and upper plate print bodies in the lower plate module and upper plate module are connected to the lower plate push-pull motor and upper plate push-pull motor with motor lifting control. The degree of concavity and protrusion of the lower plate print body and upper plate print body is controlled by the motor, thereby controlling the concave and convex effect during printing.

[0022] 2. This is applicable to inline gravure printing equipment. By connecting the upper plate to the bottom of the pressure shaft controlled by a pressure motor, the pressure and distance of the upper plate can be adjusted. The distance of the upper plate pressing can be controlled according to the thickness of the plate, so that the gap between the upper and lower plates is equal to the thickness of the plate. Furthermore, by controlling the pressing speed of the upper plate and the time of stillness after pressing, the printing effect can be effectively controlled.

[0023] 3. This is applicable to inline gravure printing equipment. By setting auxiliary conveying devices on the lower and upper plates, the ends and tails of the continuous printing plate can be conveyed from the conveyor belt to the embossing device, thereby improving the utilization rate of raw materials.

[0024] 4. This is applicable to inline gravure printing equipment. By setting up an inner and outer embedded lower plate body and lower plate shell, and an upper plate body and upper plate shell, it is convenient to adjust the distance between the depressions or convexities, and also facilitates demolding after each round of printing. It can be popped out by lifting the lower plate body and pressing it against the plate surface of the depression. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the embossing and debossing equipment for gravure printing machines according to the present invention.

[0026] Figure 2 This is a schematic diagram of the structure of the concave-convex device of the present invention.

[0027] Figure 3 This is a front sectional view of the concave-convex device of the present invention.

[0028] Figure 4 This is an isometric sectional view of the concave-convex device of the present invention.

[0029] Figure 5 For the present invention Figure 4 A magnified view of a portion of region A in the middle.

[0030] Figure 6 For the present invention Figure 4 A magnified view of a portion of region B in the middle.

[0031] Figure 7 This is a schematic diagram of the structure of the next version of the present invention.

[0032] Figure 8 This is a schematic diagram of the structure of the previous version of the present invention.

[0033] In the diagram: 101. Conveyor belt; 102. Support leg; 103. Caster wheel; 104. Conveyor motor; 2. Concave-convex device; 21. Lower plate; 22. Upper plate; 23. Top frame; 24. Guide rail; 25. Auxiliary conveyor device; 211. Lower plate module; 212. Lower plate fixing plate; 213. Lower plate moving plate; 214. Lower plate push-pull rod; 215. Lower plate cover plate; 216. Lower plate push-pull motor; 221. Upper plate module; 222. Upper plate fixing plate; 223. Upper plate moving plate; 224. Upper plate push-pull rod; 225. Upper plate cover plate; 226. Upper plate push-pull motor; 231. Pressure shaft; 232. Pressure motor; 2111. Lower plate printing body; 2112. Lower plate connecting rod; 2113. Lower plate housing; 2211. Upper plate printing body; 2212. Upper plate connecting rod; 2213. Upper plate housing. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1:

[0036] This embodiment provides an inline embossing / debossing device suitable for gravure printing machines, which has the following technical features.

[0037] Please see Figure 1-8 A gravure printing inline embossing device includes an embossing device 2, which is mounted on a conveyor belt 101. The embossing device 2 includes a lower plate 21, an upper plate 22, and a top frame 23 from bottom to top. The lower plate 21 is mounted on the conveyor belt 101, and the upper surface of the lower plate 21 is on the same horizontal plane as the upper surface of the conveyor belt 101. Multiple vertical guide rails 24 are provided between the lower plate 21 and the top frame 23. The upper plate 22 slides on the guide rails 24. A pressure motor 232 is mounted on the top frame 23, and a pressure shaft 231 is provided below the pressure motor 232. The bottom of the pressure shaft 231 is fixed to the upper plate 22.

[0038] The lower plate 21 has a horizontal array of lower plate modules 211 at the top of the through hole. Each lower plate module 211 includes a lower plate printing body 2111 and a lower plate housing 2113. The upper surface of the lower plate housing 2113 is flush with the upper surface of the lower plate 21. The lower plate printing body 2111 is installed in the corresponding shaped through hole in the lower plate housing 2113 and slides up and down. The bottom of the lower plate printing body 2111 is fixedly connected to a lower plate connecting rod 2112. The bottom of the lower plate connecting rod 2112 is fixedly connected to the lower plate moving plate 213. The lower plate push-pull rod 214 is fixedly connected below the lower plate moving plate 213. The lower end of the lower plate push-pull rod 214 is connected to the lower plate push-pull motor 216.

[0039] The bottom of the through hole of the upper plate 22 is provided with a horizontal array of upper plate modules 221. Each upper plate module 221 includes an upper plate printing body 2211 and an upper plate housing 2213. The lower surface of the upper plate housing 2213 is flush with the lower surface of the upper plate 22. The upper plate printing body 2211 is installed in the through hole of the corresponding shape in the upper plate housing 2213 and slides up and down. The top of the upper plate printing body 2211 is fixedly connected to an upper plate connecting rod 2212. The top of the upper plate connecting rod 2212 is fixedly connected to the upper plate moving plate 223. The upper plate push-pull rod 224 is fixedly connected above the upper plate moving plate 223. The upper end of the upper plate push-pull rod 224 is connected to the upper plate push-pull motor 226.

[0040] It should be noted that each upper module 221 has an arbitrary shape, and each lower module 211 has the same shape as the corresponding upper module 221.

[0041] In an optional embodiment, such as Figure 1-8 As shown, a lower plate fixing plate 212 is provided inside the lower plate 21, and the bottom of each lower plate housing 2113 is detachably mounted on the lower plate fixing plate 212. The lower plate connecting rod 2112 passes through the corresponding through hole on the lower plate fixing plate 212. An upper plate fixing plate 222 is provided inside the upper plate 22, and the top of each upper plate housing 2213 is detachably mounted on the upper plate fixing plate 222. The upper plate connecting rod 2212 passes through the corresponding through hole on the upper plate fixing plate 222.

[0042] It should be noted that the lower plate fixing plate 212 is fixed inside the lower plate 21 by means of threads or welding, and each upper plate housing 2213 is fixed inside the upper plate 22 by means of threads or welding. The bottom of each lower plate housing 2113 is installed on the lower plate fixing plate 212 by threads, and the top of each upper plate housing 2213 is installed on the upper plate fixing plate 222 by threads. Different templates can be replaced by removing the threads.

[0043] In an optional embodiment, such as Figure 1-8As shown, a lower cover plate 215 is provided at the bottom of the lower plate 21, and an upper cover plate 225 is provided at the top of the upper plate 22. The lower cover plate 215 and the upper cover plate 225 are fixed to the lower plate 21 and the upper plate 22 by threads. The lower plate push-pull motor 216 is installed at the bottom of the lower cover plate 215, and the lower plate push-pull rod 214 passes through the lower cover plate 215. The upper plate push-pull motor 226 is installed at the top of the upper cover plate 225, and the upper plate push-pull rod 224 passes through the upper cover plate 225.

[0044] In an optional embodiment, such as Figure 1-8 As shown, within a lower plate module 211, the height of the top surface of the lower plate print body 2111 is lower than the height of the upper surface of the lower plate shell 2113; within an upper plate module 221, the height of the bottom surface of the upper plate print body 2211 is lower than the height of the lower surface of the upper plate shell 2213; the height of the protrusion of the upper plate print body 2211 is the same as the height of the recess of the lower plate print body 2111, and the two corresponding lower plate modules 211 and upper plate modules 221 have the same shape.

[0045] It should be noted that the upper printing plate 2211 protrudes downwards, and the corresponding lower printing plate 2111 is recessed inwards. The height of the protrusion of the upper printing plate 2211 is the same as the height of the recess of the lower printing plate 2111, so that when the upper plate 22 and the lower plate 21 are clamped together, there is a gap between the upper printing plate 2211 and the lower printing plate 2111 that is the same as the thickness of the plate.

[0046] In an optional embodiment, such as Figure 1-8 As shown, each upper push-pull motor 226 and lower push-pull motor 216 are connected to the same controller, and the upper push-pull motor 226 and lower push-pull motor 216 push or pull up or down the same distance synchronously.

[0047] It should be noted that each upper plate push-pull motor 226 controls the upper plate push-pull rod 224 to push the upper plate cover plate 225 downwards. The upper plate cover plate 225 drives the upper plate connecting rod 2212 to move downwards, and the upper plate connecting rod 2212 drives the upper plate printing body 2211 to move downwards, thereby causing the upper plate printing body 2211 to bulge downwards by a certain distance. Each 216 controls the lower plate push-pull rod 214 to push the lower plate cover plate 215 downwards. The lower plate cover plate 215 drives the lower plate connecting rod 2112 to move downwards, and the lower plate connecting rod 2112 drives the lower plate printing body 2111 to move downwards, thereby causing the lower plate printing body 2111 to concave downwards by a certain distance. By controlling the bulge distance of the upper plate printing body 2211 to be the same as the concave distance of the lower plate printing body 2111, a gap with the same thickness as the plate surface is always maintained between the lower plate printing body 2111 and the upper plate printing body 2211.

[0048] In an optional embodiment, such as Figure 1-8As shown, the upper plate 22 is provided with at least two upper plate push-pull motors 226 and at least two corresponding upper plate push-pull rods 224. The upper plate push-pull motors 226 are located at the edge of the upper plate cover plate 225, and the middle position of the upper plate cover plate 225 is fixedly connected to the bottom of the pressure shaft 231.

[0049] It should be noted that the upper plate push-pull motor 226 is fixed at the edge of the upper plate cover plate 225, and the pressure shaft 231 is fixed at the middle of the upper plate cover plate 225, so that the downward pressure force on the upper plate 22 is more evenly distributed at the bottom of the upper plate 22, avoiding inconsistent printing pressure during printing.

[0050] In an optional embodiment, such as Figure 1-8 As shown, two symmetrical auxiliary conveying devices 25 are provided on the top surface of the lower plate 21 and the bottom surface of the upper plate 22. The upper surface of the auxiliary conveying device 25 on the lower plate 21 is higher than the upper surface of the lower plate 21, and the lower surface of the auxiliary conveying device 25 on the upper plate 22 is lower than the lower surface of the upper plate 22. The transmission direction of each auxiliary conveying device 25 is consistent with the transmission direction of the conveyor belt 101.

[0051] It should be noted that after each round of printing is completed, that is, after the upper plate 22 is lifted, the lower plate push-pull motor 216 is controlled to push upward, pushing out the part of the plate that is stuck in the groove of the lower plate 21. Then, it continues to move forward through the auxiliary conveying device 25 until the next part that needs to be printed stops in the concave-convex device 2. The auxiliary conveying device 25 also has elasticity, so that the two corresponding auxiliary conveying devices 25 clamp the plate more tightly.

[0052] In an optional embodiment, such as Figure 1-8 As shown, multiple support legs 102 are provided below the conveyor belt 101, and each support leg 102 is equipped with a caster wheel 103 at its bottom. A transmission motor 104 is also fixed on the support leg 102, and the transmission motor 104 drives the conveyor belt 101 to drive.

[0053] It should be noted that the conveyor motor 104 and the motor of the auxiliary conveyor device 25 are connected and controlled together, start and stop synchronously, and the conveyor belt 101 and the auxiliary conveyor device 25 have the same conveying speed.

[0054] Working principle: When the conveyor motor 104 is started, the continuous printing plates are conveyed from the conveyor belt 101 to the embossing device 2, specifically between the lower plate 21 and the upper plate 22. The pressure motor 232 is started to control the upper plate 22 to descend, thereby pressing the area between the lower plate 21 and the upper plate 22. To adjust the depth of the impression, i.e., the size of the embossing effect on the printing plate, when an increased embossing effect is needed, the upper plate push-pull motor 226 is controlled to push the upper plate push-pull rod 224 downwards, causing the upper plate connecting rod 2212 to move the upper plate printing body 2211 downwards, thus increasing the protrusion distance of the upper plate connecting rod 2212. This, in turn, controls the lower plate push-pull motor 216 to push the lower plate. When rod 214 moves downward, the lower plate connecting rod 2112 moves the lower plate printing body 2111 downward, thereby increasing the concave distance of the lower plate connecting rod 2112 and achieving the purpose of increasing the concave-convex effect. When it is necessary to reduce the concave-convex effect, the upper plate push-pull motor 226 is controlled to push the upper plate push-pull rod 224 upward, causing the upper plate connecting rod 2212 to move the upper plate printing body 2211 upward, thereby reducing the convex distance of the upper plate connecting rod 2212. The lower plate push-pull motor 216 is controlled to push the lower plate push-pull rod 214 upward, causing the lower plate connecting rod 2112 to move the lower plate printing body 2111 upward, thereby reducing the concave distance of the lower plate connecting rod 2112 and achieving the purpose of reducing the concave-convex effect.

[0055] In summary, this inline embossing device for gravure printing machines uses a lower plate 21 fixed on a conveyor belt 101 and an upper plate 22 that can move up and down. The upper plate 22 presses down onto the surface of the lower plate 21. The upper plate 22 and the lower plate 21 are respectively equipped with a lower plate module 211 and a lower plate fixing plate 212 with corresponding protrusions and depressions. The lower plate print body 2111 and the upper plate print body 2211 in the lower plate module 211 and the upper plate module 221 are connected to the lower plate push-pull motor 216 and the upper plate push-pull motor 226, which are controlled by motor lifting. The degree of concavity and protrusion of the lower plate print body 2111 and the upper plate print body 2211 is controlled by the motor, thereby controlling the embossing effect during printing.

[0056] This is applicable to inline embossing equipment for gravure printing machines. By connecting the upper plate 22 to the bottom of the pressure shaft 231 controlled by the pressure motor 232, the pressing force and distance of the upper plate 22 can be adjusted. The pressing distance of the upper plate 22 can be controlled according to the plate thickness, so that the gap between the upper plate 22 and the lower plate 21 is equal to the plate thickness. Furthermore, by controlling the pressing speed of the upper plate 22 and the time of stillness after pressing, the embossing effect can be effectively controlled.

[0057] This is applicable to inline embossing equipment for gravure printing machines. By setting auxiliary conveying devices 25 on the lower plate 21 and the upper plate 22, the ends and tails of the continuous printing plate can be conveyed from the conveyor belt 101 to the embossing device 2, thereby improving the utilization rate of raw materials.

[0058] This is applicable to inline gravure printing equipment. By setting up an inner and outer embedded lower plate printing body 2111 and lower plate housing 2113, upper plate printing body 2211 and upper plate housing 2213, it is convenient to adjust the distance of the depression or the convexity, and it is also convenient to demold after each round of printing. The plate can be popped out by lifting the lower plate printing body 2111 from the plate surface pressed on the depression part.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gravure printing inline embossing device, comprising an embossing device (2), said embossing device (2) being disposed on a conveyor belt (101), characterized in that, The concave-convex device (2) includes a lower plate (21), an upper plate (22), and a top frame (23) from bottom to top. The lower plate (21) is installed on the conveyor belt (101). The upper surface of the lower plate (21) is on the same horizontal plane as the upper surface of the conveyor belt (101). Multiple vertical guide rails (24) are provided between the lower plate (21) and the top frame (23). The upper plate (22) slides on the guide rails (24). A pressure motor (232) is provided on the top frame (23). A pressure shaft (231) is provided below the pressure motor (232). The bottom of the pressure shaft (231) is fixed to the upper plate (22). The lower plate (21) has a horizontal array of lower plate modules (211) at the top of the through hole. Each lower plate module (211) includes a lower plate body (2111) and a lower plate shell (2113). The upper surface of the lower plate shell (2113) is flush with the upper surface of the lower plate (21). The lower plate body (2111) slides up and down in the corresponding shape of the through hole in the lower plate shell (2113). The upper plate (22) has a horizontal array of upper plate modules (221) at the bottom of the through hole. Each upper plate module (221) includes an upper plate body (2211) and an upper plate shell (2213). The lower surface of the upper plate shell (2213) is flush with the lower surface of the upper plate (22). The upper plate body (2211) slides up and down in the corresponding shape of the through hole in the upper plate shell (2213). In any lower plate module (211), a lower plate connecting rod (2112) is fixedly connected to the bottom of the lower plate printing body (2111), the bottom of the lower plate connecting rod (2112) is fixedly connected to the lower plate moving plate (213), the lower plate moving plate (213) is fixedly connected to the lower plate push-pull rod (214) below, and the lower end of the lower plate push-pull rod (214) is connected to the lower plate push-pull motor (216); in any upper plate module (221), an upper plate connecting rod (2212) is fixedly connected to the top of the upper plate printing body (2211), the top of the upper plate connecting rod (2212) is fixedly connected to the upper plate moving plate (223), the upper plate push-pull rod (224) is fixedly connected to the upper plate moving plate (223), and the upper end of the upper plate push-pull rod (224) is connected to the upper plate push-pull motor (226).

2. The inline embossing / debossing equipment for gravure printing machines according to claim 1, characterized in that, The lower plate (21) is provided with a lower plate fixing plate (212), and the bottom of each lower plate housing (2113) is detachably installed on the lower plate fixing plate (212). The lower plate connecting rod (2112) passes through the corresponding through hole on the lower plate fixing plate (212). The upper plate (22) is provided with an upper plate fixing plate (222), and the top of each upper plate housing (2213) is detachably installed on the upper plate fixing plate (222). The upper plate connecting rod (2212) passes through the corresponding through hole on the upper plate fixing plate (222).

3. The inline embossing / debossing equipment for gravure printing machines according to claim 2, characterized in that, The bottom of the lower plate (21) is provided with a lower plate cover plate (215), and the top of the upper plate (22) is provided with an upper plate cover plate (225). The lower plate cover plate (215) and the upper plate cover plate (225) are fixedly connected to the lower plate (21) and the upper plate (22) by threads. The lower plate push-pull motor (216) is installed at the bottom of the lower plate cover plate (215), and the lower plate push-pull rod (214) passes through the lower plate cover plate (215). The upper plate push-pull motor (226) is installed at the top of the upper plate cover plate (225), and the upper plate push-pull rod (224) passes through the upper plate cover plate (225).

4. The inline embossing / debossing device for gravure printing machines according to claim 3, characterized in that, Within a lower plate module (211), the height of the top surface of the lower plate body (2111) is lower than the height of the upper surface of the lower plate shell (2113); within an upper plate module (221), the height of the bottom surface of the upper plate body (2211) is lower than the height of the lower surface of the upper plate shell (2213); the height of the protrusion of the upper plate body (2211) is the same as the height of the indentation of the lower plate body (2111), and the two corresponding lower plate modules (211) and upper plate modules (221) have the same shape.

5. A gravure printing inline embossing / debossing device according to claim 3, characterized in that, Each upper push-pull motor (226) and lower push-pull motor (216) is connected to the same controller. The upper push-pull motor (226) and lower push-pull motor (216) push and pull up or down the same distance synchronously.

6. A gravure printing inline embossing / debossing device according to claim 3, characterized in that, The upper plate (22) is provided with at least two upper plate push-pull motors (226) and at least two corresponding upper plate push-pull rods (224). The upper plate push-pull motors (226) are located at the edge of the upper plate cover plate (225), and the middle position of the upper plate cover plate (225) is fixedly connected to the bottom of the pressure shaft (231).

7. A gravure printing inline embossing / debossing device according to claim 1, characterized in that, The top surface of the lower plate (21) and the bottom surface of the upper plate (22) are each provided with two symmetrical auxiliary conveying devices (25). The upper surface of the auxiliary conveying device (25) on the lower plate (21) is higher than the upper surface of the lower plate (21), and the lower surface of the auxiliary conveying device (25) on the upper plate (22) is lower than the lower surface of the upper plate (22). The transmission direction of each auxiliary conveying device (25) is consistent with the transmission direction of the conveyor belt (101).

8. A gravure printing inline embossing / debossing device according to claim 1, characterized in that, Multiple support legs (102) are provided below the conveyor belt (101), and each support leg (102) is provided with a caster wheel (103) at the bottom. A transmission motor (104) is also fixed on the support leg (102), and the transmission motor (104) drives the conveyor belt (101) to drive.

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