Single paper transfer surface treatment equipment

Abstract

The utility model discloses sheet-fed transfer surface treatment equipment. The utility model aims to solve the problems that the transfer surface treatment quality is not high, the production efficiency cannot be improved, a transfer film is easy to damage and the like in the prior art. According to the technical key points, the device comprises a rack, a central impression cylinder, a paper feeding unit, a coating unit, a transfer forming unit and a paper delivery unit, and is characterized in that the paper feeding unit, the coating unit, the transfer forming unit and the paper delivery unit are arranged around the central impression cylinder and are matched with the central impression cylinder in work, and the coating unit comprises an ultraviolet curing coating ink fountain, an anilox roller and a plate roller which are matched with each other; the transfer forming unit comprises a transfer film, an unwinding mechanism, a pressure roller, a winding mechanism and an ultraviolet irradiation device which are matched with one another, a tooth holding groove is formed in the central impression cylinder, a tooth holding mechanism is arranged in the tooth holding groove, a pressure roller supporting plate flush with the cylinder surface of the central impression cylinder is arranged on the tooth holding groove, and a cylinder surface cooling structure is further arranged on the central impression cylinder.

Description

Technical Field

[0001] The utility model relates to equipment for the surface treatment process of paper, in particular to equipment for the transfer surface treatment of a single paper. Background Art

[0002] Transfer surface treatment is an advanced process for paper surface treatment, including glazing, laser transfer, cold stamping and other process types. Different process types can be achieved through different transfer films, that is, the glazing effect of the paper surface is produced by the glazing film, the laser holographic texture effect of the paper surface is produced by the laser transfer film, and the gold and silver effect of the paper surface is produced by the cold stamping film. Transfer surface treatment equipment can be divided into two types: sheet-fed transfer equipment and web-fed transfer equipment, which have certain structural differences; transfer surface treatment processes are divided into full-page surface treatment and local surface treatment, which are mainly solved by the layout design of the plate roller coated with ultraviolet curing coating (UV glue).

[0003] Chinese Patent No. 201010120892.0 discloses a dual-purpose device for laser pattern imprint transfer and cold stamping of a single substrate, the structure of which includes a frame and a film material unwinding device, a film material winding device and an imprint transfer device respectively installed on the frame, the film material unwinding device and the film material winding device are respectively arranged above the imprint transfer device; the imprint transfer device includes an imprinting mechanism, an ultraviolet light curing mechanism and a peeling mechanism, and the peeling mechanism is arranged in front of the imprinting mechanism; the dual-purpose device for laser pattern imprint transfer and cold stamping also includes an intermittent film material control device; an arc conveying mechanism is arranged between the imprinting mechanism and the peeling mechanism, and the ultraviolet light curing mechanism is arranged above the arc conveying mechanism; the film material unwinding device adopts an intermittent unwinding drive mechanism, the film material winding device adopts an intermittent winding drive mechanism, and the arc conveying mechanism adopts an intermittent conveying drive mechanism, and the signal input ends of the intermittent unwinding drive mechanism, the intermittent winding drive mechanism, and the intermittent conveying drive mechanism are respectively electrically connected to the three signal output ends of the intermittent film material control device. The disadvantages of this solution are: first, the arc-shaped conveying mechanism has large resistance to conveying paper, which affects the surface treatment quality of the paper; second, the single paper is not positioned during the surface treatment process and is prone to deviation, which also affects the surface treatment quality of the paper; third, the production efficiency is low, resulting in high production costs.

[0004] A sheet-fed printing press disclosed in Chinese Patent No. 200710111893.7 is structured as follows: the sheet-fed printing press comprises: a printing section for printing a sheet of paper from a paper supply section; and a surface processing section for pressing a transfer film onto a sheet of paper printed by the printing section to process the surface of the sheet of paper, the surface processing section comprising: a cylinder on the downstream side, the cylinder on the downstream side having a gripper, the gripper gripping the sheet of paper from the cylinder on the upstream side, the cylinder on the upstream side pressing the sheet of paper The single sheet of paper sent out after printing is transported; the single sheet printing machine is equipped with: a film transfer mechanism, which transports the transfer film in the same direction as the cylinder on the downstream side, and presses the transfer film onto the single sheet of paper on the cylinder; the single sheet printing machine is equipped with: a painting section, which applies ultraviolet curing resin paint to the printed single sheet of paper until the surface processing section completes the surface processing; and an ultraviolet irradiation section, which is used to cure the ultraviolet curing resin paint applied by the painting section. The disadvantages of this solution are as follows: first, the plate roller 20B coated with ultraviolet curing glue and the transfer film 5 (15) mechanism of the transfer surface treatment part are respectively matched with different embossing rollers 21B and 11E, and a paper feeding roller 11D is also provided in the middle. As a result, there are many mechanisms through which the transfer surface treatment of a single sheet of paper is not conducive to high-quality and accurate transfer. Second, there is no cooling measure for the ultraviolet irradiation part 10 to cause the embossing roller 11E to heat up, so the production efficiency of the transfer surface treatment is limited and the output is not high. Third, during the rotation of the embossing roller 11E, the pressure rollers 17 and 18 will enter the gripping groove 11K, allowing the transfer film 5 (15) to contact the gripping mechanism 12, which can easily damage the transfer film 5 (15). Summary of the invention

[0005] In order to overcome the problems existing in the prior art such as low quality of single sheet transfer surface treatment, inability to improve production efficiency, the pressure roller of the transfer film entering the gripping groove, which easily causes damage to the transfer film, etc., the purpose of the utility model is to provide an improved single sheet transfer surface treatment equipment which can overcome the defects of the prior art.

[0006] The utility model solves the technical problem by adopting the following technical solution: a single sheet transfer surface treatment device, comprising a frame and a central impression cylinder, a paper feeding unit, a coating unit, a transfer molding unit and a paper discharging unit installed on the frame, wherein the paper feeding unit, the coating unit, the transfer molding unit and the paper discharging unit are respectively arranged around the central impression cylinder and respectively cooperate with the central impression cylinder, wherein the coating unit comprises a corresponding ultraviolet curing coating ink tank, anilox roller and plate roller, the coating unit is formed by the plate roller and the central impression cylinder for coating, the transfer molding unit comprises a corresponding transfer film, an unwinding unit and a transfer film film. Mechanism, pressure roller, winding mechanism and ultraviolet irradiation device, the transfer film is output from the unwinding mechanism, and is wound up by the winding mechanism after passing through the pressure roller, the transfer molding unit applies pressure to the transfer film through the pressure roller to cooperate with the central impression roller for transfer molding, the ultraviolet irradiation device is located above the transfer film behind the pressure roller, and its irradiation surface faces the central impression roller, the central impression roller is provided with a gripping groove, a gripping mechanism is provided in the gripping groove, a pressure roller support plate flush with the cylinder surface of the central impression roller is provided on the gripping groove, and a cylinder surface cooling structure is also provided on the central impression roller.

[0007] The central impression cylinder described in the above technical solution may be evenly distributed with more than two gripping grooves, each of which is provided with a gripping mechanism, and each of which is provided with a pressure roller support plate flush with the cylinder surface of the central impression cylinder.

[0008] The pressure roller support plate described in the above technical solution can be installed and fixed on the gripping groove and cover any space on the notch of the gripping groove that does not hinder the movement of the gripping mechanism. The top surface of the pressure roller support plate is flush with the cylinder surface of the central embossing roller and constitutes a part of the cylinder surface. The pressure roller support plate can take any suitable shape.

[0009] The cylinder surface cooling structure of the central impression cylinder described in the above technical solution may be a layer for accommodating cooling water arranged on the inner side of the cylinder surface except the tooth groove, and the layer is provided with a water inlet and an outlet, and the water inlet and outlet are connected to the water inlet and outlet channels on the cylinder shaft of the central impression cylinder through water inlet and outlet pipes respectively.

[0010] The transfer film described in the above technical solution can be a light film, a laser transfer film or a cold stamping film.

[0011] The coating unit described in the above technical solution may adopt a flexible plate coating structure.

[0012] The transfer molding unit in the above technical solution may further include a guide roller, and any suitable number of guide rollers may be provided. The transfer film is output from the unwinding mechanism, and is rewound by the rewinding mechanism after passing through the pressure roller and the guide roller.

[0013] The paper feeding unit described in the above technical solution can be composed of a corresponding single-sheet paper feeding device and a paper transfer roller, and the paper feeding unit is composed of the paper transfer roller and the central impression cylinder for paper feeding.

[0014] The paper discharging unit described in the above technical solution can be composed of corresponding paper receiving rollers and single-sheet paper receiving devices, and the paper discharging unit is composed of the paper receiving rollers and the central impression cylinder for paper receiving.

[0015] The paper transfer roller and the paper delivery roller described in the above technical solution can be provided with gripper grooves, and gripper mechanisms are installed in the gripper grooves.

[0016] The gripping mechanism described in the above technical solution has the function of clamping the paper head of a single sheet of paper on the central impression roller, paper transfer roller or paper receiving roller to ensure that the position of the single sheet of paper does not move when the central impression roller, paper transfer roller or paper receiving roller rotates. A gripping pad should generally be provided on the notch of the gripping groove to cooperate with the gripping mechanism for clamping paper.

[0017] In the above technical solution, if two gripping mechanisms are provided on the central impression cylinder, the diameters of the paper transfer roller and the paper receiving roller can be half of the diameter of the central impression cylinder, and when the central impression cylinder rotates one circle, the paper transfer roller and the paper receiving roller respectively rotate two circles to cooperate with it; if three gripping mechanisms are provided on the central impression cylinder, the diameters of the paper transfer roller and the paper receiving roller can be one-third of the diameter of the central impression cylinder, and when the central impression cylinder rotates one circle, the paper transfer roller and the paper receiving roller respectively rotate three circles to cooperate with it; and so on.

[0018] The frame of the above technical solution can be provided with more than two combinations of the central impression roller, coating unit and transfer molding unit, and a transition paper transfer roller is provided between the central impression roller of one combination and the central impression roller of another combination, and the paper feeding unit is matched with the central impression roller on the first combination, and the paper discharge unit is matched with the central impression roller on the last combination, so as to form a multi-purpose device capable of performing more than two different types of transfer surface treatment on a single sheet of paper, so as to expand the function of the transfer surface treatment device of the utility model. The diameter of the transition paper transfer roller can be the same as the diameter of the central impression roller, and the transition paper transfer roller can be provided with two corresponding gripper grooves, and the gripper mechanisms are installed in the gripper grooves.

[0019] The beneficial effects of the utility model are as follows: first, the paper feeding unit, the coating unit, the transfer molding unit and the paper discharging unit are all arranged around a central impression cylinder and work in coordination therewith, thereby simplifying the structure of the existing single-sheet transfer surface treatment equipment, and the single sheet of paper is fixed on the cylinder surface of a central impression cylinder during the entire transfer surface treatment process, without the need to switch to other mechanisms, thereby greatly improving the quality and accuracy of the single-sheet transfer surface treatment. Secondly, a pressure roller support plate flush with the cylinder surface of the central impression roller is provided on the gripping groove on the central impression roller, so that when the gripping groove on the central impression roller passes through the pressure roller of the transfer molding unit, the pressure roller is supported by the pressure roller support plate on the gripping groove, thereby preventing the pressure roller from entering the gripping groove and contacting the gripping mechanism, causing damage to the transfer film on the pressure roller; thirdly, a cylinder surface cooling structure is also provided on the central impression roller, so that after the central impression roller is irradiated by the ultraviolet irradiation device for a long time during the operation process, it will not be overheated and deformed, effectively ensuring the good working condition of the paper feeding unit, coating unit, transfer molding unit and paper output unit around the central impression roller, thereby ensuring the high quality and quality stability of the transfer surface treatment, and effectively improving the transfer surface treatment output.

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0022] Figure 2 yes Figure 1 An enlarged schematic diagram of the front side of the center impression cylinder.

[0023] Figure 3 yes Figure 1 Schematic diagram for functional expansion.

[0024] In the figure: 1. Central impression roller; 2. Paper feeding unit; 3. Coating unit; 4. Transfer molding unit; 5. Paper discharging unit; 6. UV curing coating ink tank; 7. Anilox roller; 8. Plate roller; 9. Transfer film; 10. Unwinding mechanism; 11. Pressure roller; 12. Winding mechanism; 13. UV irradiation device; 14. Gripping groove; 15. Gripping mechanism; 16. Cylinder surface; 17. Pressure roller support plate; 18. Cylinder surface cooling structure (sandwich); 19. Gripping Groove; 20, the top surface of the pressure roller support plate; 21, the water inlet pipe; 22, the water outlet pipe; 23, the water inlet channel; 24, the water outlet channel; 25, 26 and 27, the guide rollers; 28, the sheet-feeding device; 29, the paper transfer roller; 30, the paper delivery roller; 31, the sheet-feeding device; 32 and 33, the gripper groove; 34 and 35, the gripper mechanism; 36 and 37, the assembly; 38, the transition paper transfer roller; 39 and 40, the gripper groove; 41 and 42, the gripper mechanism. DETAILED DESCRIPTION

[0025] Reference Figure 1-2 The single-sheet transfer surface treatment device comprises a frame (not shown) and a central impression cylinder 1, a paper feeding unit 2, a coating unit 3, a transfer molding unit 4 and a paper discharging unit 5 installed on the frame, wherein the paper feeding unit 2, the coating unit 3, the transfer molding unit 4 and the paper discharging unit 5 are respectively arranged around the central impression cylinder 1 and work in cooperation with it, wherein the coating unit 3 comprises a corresponding UV curing coating ink tank 6, an anilox roller 7 and a plate roller 8, the coating unit 3 comprises the plate roller 8 and the central impression cylinder 1 for coating, the transfer molding unit 4 comprises a corresponding transfer film 9, a reeling mechanism 10, a pressure roller 11, a reeling mechanism 12 and a ...ilox roller 7 and a plate roller 8, the coating unit 3 comprises the plate roller 8 and the central impression cylinder 1 for coating, the transfer molding unit 4 comprises a corresponding transfer film 9, a reeling mechanism 10, a pressure roller 11, a reeling mechanism 12 and a UV curing coating ink tank 6, anilox roller 7 and a plate roller 8, the coating unit 3 comprises the plate roller 8 and the central impression cylinder 1 for coating, the transfer molding unit 4 comprises a corresponding transfer film 9, a reeling mechanism 10, a pressure roller 11, a reeling mechanism 12 and a UV curing coating ink tank 6, anilox roller 7 and a plate roller 8, the coating unit 3 comprises the plate roller 8 and the central impression cylinder 1 for coating, the transfer molding unit 4 comprises a corresponding transfer film 9, a reeling mechanism 10, The irradiation device 13, the transfer film 9 is output from the unwinding mechanism 10, and is reeled by the reeling mechanism 12 after passing through the pressure roller 11, the transfer molding unit 4 applies pressure to the transfer film 9 through the pressure roller 11 to cooperate with the central impression roller 1 for transfer molding, the ultraviolet irradiation device 13 is located above the transfer film 9 behind the pressure roller 11, and its irradiation surface faces the central impression roller 1, the central impression roller 1 is provided with a gripping groove 14, a gripping mechanism 15 is provided in the gripping groove 14, and a pressure roller support plate 17 flush with the cylinder surface 16 of the central impression roller 1 is provided on the gripping groove 14, and a cylinder surface cooling structure 18 is also provided on the central impression roller 1.

[0026] In addition, two gripping grooves 14 and 19 are evenly distributed on the central impression cylinder 1, and gripping mechanisms 15 are provided in the gripping grooves 14 and 19. Pressure roller support plates 17 flush with the cylinder surface 16 of the central impression cylinder 1 are provided on the gripping grooves 14 and 19.

[0027] like Figure 2 As shown, the pressure roller support plate 17 is installed and fixed on the gripping groove 14, and covers the space on the notch of the gripping groove 14 without hindering the movement of the gripping mechanism 15. The top surface 20 of the pressure roller support plate 17 is flush with the cylinder surface 16 of the central embossing roller 1 and constitutes a part of the cylinder surface 16.

[0028] The cylinder surface cooling structure 18 of the central impression cylinder 1 is a layer 18 for containing cooling water arranged on the inner side of the cylinder surface 16 except the gripping grooves 14 and 19, and the layer 18 is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected to the water inlet channel 23 and the water outlet channel 24 on the cylinder shaft of the central impression cylinder 1 through a water inlet pipe 21 and a water outlet pipe 22 respectively.

[0029] The transfer film 9 is a photo film, a laser transfer film or a cold stamping film.

[0030] The coating unit 3 adopts a flexographic coating structure.

[0031] The transfer molding unit 4 also includes guide rollers 25, 26, and 27. Any number of guide rollers may be provided. The transfer film 9 is output from the unwinding mechanism 10, and is wound up by the winding mechanism 12 after passing through the pressure roller 11 and the guide rollers 25, 26, and 27.

[0032] The paper feeding unit 2 is composed of a corresponding single-sheet paper feeding device 28 and a paper transfer roller 29. The paper feeding unit 2 is composed of the paper transfer roller 29 and the central impression cylinder 1 for paper feeding.

[0033] The paper discharging unit 5 is composed of a corresponding paper receiving roller 30 and a single-sheet paper receiving device 31 . The paper discharging unit 5 is composed of the paper receiving roller 30 and the central impression cylinder 1 for paper receiving.

[0034] The paper transfer roller 29 and the paper delivery roller 30 are respectively provided with gripper grooves 32 and 33, and gripper mechanisms 34 and 35 are respectively installed in the gripper grooves 32 and 33.

[0035] The function of the gripping mechanism 15, etc. is to clamp the head of a single sheet of paper onto the central impression roller 1, the paper transfer roller 29 or the paper receiving roller 30 to ensure that the position of the single sheet of paper does not move when the central impression roller 1, the paper transfer roller 29 or the paper receiving roller 30 rotates. Generally, a gripping pad should be provided on the notches of the gripping groove 14, etc. to cooperate with the gripping mechanism 15, etc. to clamp the paper.

[0036] The diameters of the paper transfer roller 29 and the paper receiving roller 30 are both half of the diameter of the central impression cylinder 1. When the central impression cylinder 1 rotates one circle, the paper transfer roller 29 and the paper receiving roller 30 rotate two circles respectively to cooperate with it.

[0037] Reference Figure 3 The frame is provided with two or more assemblies 36 and 37 of the central impression cylinder 1, the coating unit 3 and the transfer molding unit 4, and a transition paper transfer roller 38 is provided between the central impression cylinder 1 of the assembly 36 and the central impression cylinder 1 of the assembly 37, and the paper feeding unit 2 is matched with the central impression cylinder 1 on the assembly 36, and the paper discharge unit 5 is matched with the central impression cylinder 1 on the assembly 37, so as to form a multi-purpose device capable of performing two different types of transfer surface treatment on a single sheet of paper, so as to expand the function of the transfer surface treatment device of the utility model. The diameter of the transition paper transfer roller 38 is the same as that of the central impression cylinder 1, and the transition paper transfer roller 38 is provided with two corresponding gripper grooves 39 and 40, and the gripper mechanisms 41 and 42 are respectively installed in the gripper grooves 39 and 40.

[0038] When working, refer to Figure 1-2 , the single sheet of paper without transfer surface treatment is output from the single sheet paper feeding device 28; then the head of the single sheet of paper is clamped by the gripping mechanism 34 on the paper transfer roller 29, and rotates with the paper transfer roller 29 to reach the paper feeding matching point with the central impression cylinder 1, the gripping mechanism 34 releases the single sheet of paper, and is clamped by the gripping mechanism 15 on the central impression cylinder 1; then the single sheet of paper rotates with the central impression cylinder 1 to reach the coating matching point with the plate roller 8, and is partially or entirely coated with a layer of ultraviolet curing coating; then the single sheet of paper continues to rotate with the central impression cylinder 1 to reach the printing matching point with the transfer film 9 pressed by the pressure roller 11, and the transfer film 9 is pressed on the ultraviolet curing coating layer; then the single sheet of paper continues to rotate with the central impression cylinder 1 The central impression cylinder 1 rotates to reach the curing matching point with the ultraviolet irradiation device 13, and the ultraviolet curing coating layer is cured by ultraviolet irradiation; then the single sheet of paper continues to rotate with the central impression cylinder 1 to reach the guide roller 25, the transfer film 9 is peeled off the ultraviolet curing coating layer, and the top surface of the ultraviolet curing coating layer is formed with a transfer surface treatment effect, that is, a glossy surface, laser holographic texture or gold and silver color is formed; then the single sheet of paper continues to rotate with the central impression cylinder 1 to reach the paper receiving matching point with the paper receiving roller 30, the gripping mechanism 15 of the central impression cylinder 1 releases the single sheet of paper, the gripping mechanism 35 of the paper receiving roller 30 clamps the single sheet of paper, and the paper receiving roller 30 rotates to send it to the single sheet of paper receiving device 31.

[0039] Reference Figure 3 The transfer film on the assembly 36 and the transfer film on the assembly 37 are transfer films with different transfer surface treatment types. The plate roller on the assembly 36 and the plate roller on the assembly 376 are designed to coat different parts of a single sheet of paper. After a single sheet of paper is subjected to a transfer surface treatment on the assembly 36, it is transferred to the assembly 37 through the transition paper transfer roller 38 for another transfer surface treatment. The other working principles refer to the above Figure 1-2 Working principle.

Claims

1. A sheet transfer surface treatment device, comprising a frame and a central impression cylinder, a paper feeding unit, a coating unit, a transfer molding unit and a paper discharge unit installed on the frame, characterized in that: The paper feeding unit, coating unit, transfer molding unit and paper output unit are respectively arranged around the central impression roller and work in cooperation with it respectively, wherein the coating unit includes correspondingly matched ultraviolet curing coating ink tank, anilox roller and plate roller, the coating unit is matched with the central impression roller for coating by the plate roller, the transfer molding unit includes correspondingly matched transfer film, unwinding mechanism, pressure roller, winding mechanism and ultraviolet irradiation device, the transfer film is output from the unwinding mechanism, and is wound by the winding mechanism after passing through the pressure roller, the transfer molding unit applies pressure to the transfer film by the pressure roller to cooperate with the central impression roller for transfer molding, the ultraviolet irradiation device is located above the transfer film behind the pressure roller, and its irradiation surface faces the central impression roller, the central impression roller is provided with a gripping groove, a gripping mechanism is provided in the gripping groove, a pressure roller support plate flush with the cylinder surface of the central impression roller is provided on the gripping groove, and a cylinder surface cooling structure is also provided on the central impression roller.

2. The single-sheet paper transfer surface treatment device according to claim 1 is characterized in that More than two gripping grooves are evenly distributed on the central impression cylinder, gripping mechanisms are arranged in the gripping grooves, and pressure roller support plates flush with the cylinder surface of the central impression cylinder are arranged on the gripping grooves.

3. The single-sheet paper transfer surface treatment device according to claim 2 is characterized in that The pressure roller support plate is installed and fixed on the gripper groove and covers any space on the notch of the gripper groove that does not hinder the movement of the gripper mechanism. The top surface of the pressure roller support plate is flush with the cylinder surface of the central impression cylinder and constitutes a part of the cylinder surface.

4. The single-sheet paper transfer surface treatment device according to claim 1 or 2, characterized in that The cylinder surface cooling structure of the central impression cylinder is that an interlayer for accommodating cooling water is arranged on the inner side of the cylinder surface except the gripping groove, and the interlayer is provided with a water inlet and an outlet, and the water inlet and outlet are connected to the water inlet and outlet channels on the cylinder shaft of the central impression cylinder through water inlet and outlet pipes respectively.

5. The single-sheet paper transfer surface treatment device according to claim 1 or 2, characterized in that The transfer film is a photo film, a laser transfer film or a cold stamping film.

6. The single-sheet paper transfer surface treatment device according to claim 1 or 2, characterized in that The coating unit adopts a flexible plate coating structure.

7. The single-sheet paper transfer surface treatment device according to claim 1 or 2, characterized in that The transfer molding unit also includes a guide roller. The transfer film is output from the unwinding mechanism and is rewound by the rewinding mechanism after passing through the pressure roller and the guide roller.

8. The single-sheet paper transfer surface treatment device according to claim 1 or 2, characterized in that The paper feeding unit is composed of a corresponding single-sheet paper feeding device and a paper transfer roller, and the paper feeding unit is composed of the paper transfer roller and the central impression roller for paper feeding; the paper output unit is composed of a corresponding paper receiving roller and a single-sheet paper receiving device, and the paper output unit is composed of the paper receiving roller and the central impression roller for paper receiving.

9. The single-sheet paper transfer surface treatment device according to claim 8, characterized in that The paper transfer roller and the paper receiving roller are both provided with gripper grooves, and gripper mechanisms are installed in the gripper grooves.

10. The single-sheet paper transfer surface treatment device according to claim 1 or 2, characterized in that The frame is provided with two or more assemblies of the central impression roller, the coating unit and the transfer molding unit, and a transition paper transfer roller is provided between the central impression roller of one assembly and the central impression roller of another assembly, and the paper feeding unit is matched with the central impression roller on the first assembly, and the paper output unit is matched with the central impression roller on the last assembly, so as to form a multi-purpose device capable of performing two or more different types of transfer surface treatment on a single sheet of paper.

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