Transfer printing device
By introducing a four-side clamping mechanism into the transfer equipment, the problem of uneven transfer film is solved, and the flat state of the transfer film is realized, ensuring the integrity and effect of the pattern during the transfer process.
Patent Information
- Application Number
- CN202421235180.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the transfer process of the existing transfer equipment, the transfer film is prone to unevenness, resulting in pattern deformation or wrinkling, affecting the transfer effect.
A transfer device is designed, including a transfer bracket, a pressing roller, a winding mechanism and a tightening mechanism. The transfer film is clamped on four sides by the up tightening pulley set and the down tightening pulley set to ensure that the diaphragm is moving. Keep it flat during the process, and use the combination of the collecting motor and the discharge motor to achieve effective stretching and tightening of the diaphragm.
Effectively prevent deformation of the transfer film, ensure that the pattern is transferred to the substrate intact and flat on the press roller, and improve the transfer effect.
Smart Images
Figure CN222310142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing, in particular to a transfer device. Background Art
[0002] When the printing equipment is transferring, the pattern on the transfer film is transferred to the substrate through the pressure roller (heating and pressurizing). However, the transfer film of the existing transfer equipment is only wound up at the front and back ends through the winding shaft and the unwinding shaft. The transfer film is prone to unevenness during the transfer process, which causes the pattern on the transfer film to deform or wrinkle, resulting in poor transfer effect. Utility Model Content
[0003] The utility model aims to provide a transfer device, which can realize the tightening of the four sides of the transfer film, ensure the flatness of the transfer film during transfer, and effectively transfer the contents on the transfer film completely and flatly to the substrate through the pressing roller.
[0004] The printing press of the present invention is characterized in that the printing press of the present invention is provided with the printing press of the present invention, and the printing press of the present invention is provided with the printing press of the present invention, and the printing press of the present invention is provided with the printing press of the present invention.
[0005] As a preferred solution of the utility model, the winding mechanism also includes a first guide shaft and a second guide shaft, the first guide shaft and the second guide shaft are respectively located on the front and rear sides of the pressure roller, and the winding shaft and the unwinding shaft are respectively located above the first guide shaft and the second guide shaft.
[0006] As a preferred solution of the utility model, the transfer bracket is provided with a press drive assembly for driving the press roller to rotate, and the press drive assembly includes a press motor, a driving sprocket, a driven sprocket and a transmission chain, the output end of the press motor is connected to the driving sprocket, the driven sprocket is connected to the press roller, and the driven sprocket is connected to the driving sprocket through the transmission chain.
[0007] As a preferred solution of the utility model, the surface of the nip roller is coated with a heat-resistant silicone layer.
[0008] As a preferred solution of the utility model, the winding shaft is an air-inflating winding shaft.
[0009] As a preferred solution of the utility model, the unwinding shaft is an unwinding air expansion shaft.
[0010] Compared with the prior art, the transfer device of the embodiment of the utility model has the following beneficial effects:
[0011] The upper tensioning pulley group and the lower tensioning pulley group in the utility model clamp the side edges of the transfer film up and down, and the two groups of tensioning mechanisms are in an outward eight-shaped shape. When the transfer film moves along the moving direction of the substrate, the left and right sides of the transfer film are clamped by the tensioning mechanisms respectively. As the transfer film moves, the tensioning mechanism stretches the transfer film to the left and right sides, and at the same time the unwinding motor brakes and the collecting motor tightens, so that the four sides of the transfer film are tightened, ensuring that the transfer film is flat during transfer, and effectively transferring the contents on the transfer film to the substrate completely and flatly through the pressing roller. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.
[0013] Figure 1 A schematic diagram of the structure of a transfer device provided by the utility model;
[0014] Figure 2 for Figure 1 A magnified view of region A in FIG.
[0015] Figure 3 It is a structural schematic diagram of the tensioning mechanism;
[0016] Figure 4 It is a structural schematic diagram of the material pressing drive assembly;
[0017] In the figure, the transfer bracket 1; the pressing roller 2; the winding shaft 3; the unwinding shaft 4; the material taking-up motor 5; the material unwinding motor 6; the tensioning assembly 7; the upper tensioning pulley group 71; the tensioning belt 711; the pulley 712; the lower tensioning pulley group 72; the first guide shaft 8; the second guide shaft 9; the pressing motor 10; the driving sprocket 11; the driven sprocket 12; the transmission chain 13; and the transfer film 14. DETAILED DESCRIPTION
[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.
[0020] like Figures 1 to 4 As shown, a transfer device of a preferred embodiment of the utility model comprises a transfer bracket 1 and a pressure roller 2 connected to the transfer bracket 1, a winding mechanism and a tensioning mechanism, the winding mechanism comprises a winding shaft 3, an unwinding shaft 4, a winding motor 5 for driving the winding shaft 3 to wind up a transfer film 14, and a discharge motor 6 for driving the unwinding shaft 4 to unwind the transfer film 14, the winding shaft 3 and the unwinding shaft 4 are respectively located at the front and rear sides of the pressure roller 2, the tensioning mechanism comprises two sets of tensioning components 7 symmetrically arranged on the left and right sides of the pressure roller 2, the tensioning components 7 It includes an upper tensioning pulley group 71 and a lower tensioning pulley group 72. The structure of the upper tensioning pulley group 71 is the same as that of the lower tensioning pulley group 72. The upper tensioning pulley group 71 is against the top surface of the transfer film 14, and the lower tensioning pulley group 72 is against the bottom surface of the transfer film 14. The upper tensioning pulley group 71 includes a tensioning belt 711 and a plurality of pulleys 712 arranged obliquely from the inside to the outside along the conveying direction of the substrate. The plurality of pulleys 712 are connected to each other through the tensioning belt 711, and the pulleys 712 are rotatably connected to the transfer bracket 1.
[0021] The upper tensioning pulley set 71 and the lower tensioning pulley set 72 in the utility model clamp the side of the transfer film 14 up and down, and the two sets of tensioning mechanisms are in an outward eight-shaped shape (such as Figure 3 As shown, when the transfer film 14 moves along the moving direction of the substrate, the left and right sides of the transfer film 14 are clamped by the tensioning mechanism respectively. As the transfer film 14 moves, the tensioning mechanism stretches the transfer film 14 to the left and right sides, and at the same time, the unwinding motor 6 is braked and the receiving motor 5 is tightened, so that the four sides of the transfer film 14 are tightened, ensuring that the transfer film 14 is flat during transfer, and effectively transferring the contents on the transfer film 14 completely and flatly to the substrate through the nip roller 2.
[0022] Exemplarily, the winding mechanism also includes a first guide shaft 8 and a second guide shaft 9, and the first guide shaft 8 and the second guide shaft 9 are respectively located on the front and rear sides of the pressure roller 2, and the winding shaft 3 and the unwinding shaft 4 are respectively located above the first guide shaft 8 and the second guide shaft 9. A quadrilateral structure is formed between the winding shaft 3, the unwinding shaft 4, the first guide shaft 8, and the second guide shaft 9 to effectively unfold the transfer film 14, and the tensioning mechanism can effectively ensure that the transfer film 14 is smoothly unfolded.
[0023] Specifically, Figure 4 As shown, the transfer bracket 1 is provided with a pressing drive assembly for driving the pressing roller 2 to rotate, and the pressing drive assembly includes a pressing motor 10, a driving sprocket 11, a driven sprocket 12 and a transmission chain 13. The output end of the pressing motor 10 is connected to the driving sprocket 11, the driven sprocket 12 is connected to the pressing roller 2, and the driven sprocket 12 is connected to the driving sprocket 11 through the transmission chain 13. The pressing roller 2 is driven by the pressing drive assembly to roll the transfer film 14.
[0024] Preferably, the surface of the nip roller 2 is coated with a heat-resistant silicone layer, so that when the nip roller 2 rolls the transfer film 14 , the transfer film 14 can completely adhere to the surface of the substrate, thereby improving the transfer effect.
[0025] Furthermore, the reel 3 is an air-inflated reel; the unreel 4 is an air-inflated unreel, which realizes loading and unloading of the transfer film 14 by inflation and deflation, thus saving manpower.
[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A transfer device, characterized in that: The film-forming mechanism is a film-forming mechanism which is actuated by the rollers of the invention and is adapted to move the rollers to move along the web, the rollers being adapted to move the rollers towards the film-forming mechanism, the rollers being adapted to move the rollers towards the film-forming mechanism, the rollers being adapted to move the rollers towards the film-forming mechanism, the rollers being adapted to move the rollers towards the film-forming mechanism, 2. The transfer device according to claim 1, characterized in that: The winding mechanism also includes a first guide shaft and a second guide shaft, the first guide shaft and the second guide shaft are respectively located at the front and rear sides of the pressing roller, and the winding shaft and the unwinding shaft are respectively located above the first guide shaft and the second guide shaft.
3. The transfer device according to claim 1, characterized in that: The transfer bracket is provided with a press drive assembly for driving the press roller to rotate, and the press drive assembly includes a press motor, a driving sprocket, a driven sprocket and a transmission chain. The output end of the press motor is connected to the driving sprocket, the driven sprocket is connected to the press roller, and the driven sprocket is connected to the driving sprocket through the transmission chain.
4. The transfer device according to claim 1, characterized in that: The surface of the nip roller is coated with a heat-resistant silica gel layer.
5. The transfer device according to claim 1, characterized in that: The reel is an air-inflated reel.
6. The transfer device according to claim 4, characterized in that: The unwinding shaft is an unwinding air expansion shaft.