Rolling type printing machine transfer printing film tensioning mechanism
By setting two sets of tightening components between the rolling roller and the unwinding roller of the rolling press, each set of components includes two compression wheel sets, the four sides of the transfer film are tightened, and the transfer of the existing technology is solved The problem of wrinkling in the printing film cover improves the transfer effect and product quality.
Patent Information
- Application Number
- CN202421222367.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
When the existing roll printing press covers the transfer film, only the two sides of the unwinding and winding are tightened, resulting in the wrinkle of the transfer film covering, poor transfer effect, and affecting product quality.
Design a transfer film tightening mechanism of a roll-type printing press. By setting up a tightening component between the rolling roller and the unwinding roller, the tightening component includes two sets of relatively arranged, and the transfer film is arranged in two sets of tightening components. In between, each set of tightening components includes two compression wheel sets arranged on both sides of the transfer film to achieve tightening on the four sides of the transfer film.
By tightening the four sides, the transfer film is guaranteed to have a smooth coverage of the substrate, improve the transfer effect and ensure product quality.
Smart Images
Figure CN222431855U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing machines, in particular to a transfer film tensioning mechanism of a roll-type printing machine. Background Art
[0002] The existing roll-to-roll printing machine mainly consists of an unwinding mechanism and a rewinding mechanism for tensioning the transfer film. When the transfer film is covered on the surface of the substrate, the transfer film is only tensioned on the unwinding and rewinding sides, which will cause the transfer film to wrinkle, resulting in poor transfer effect and affecting product quality. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a transfer film tensioning mechanism for a roll-to-roll printing machine, which can achieve tensioning of the four sides of the transfer film, ensure smooth coverage of the transfer film on the substrate, and ensure product quality.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A transfer film tensioning mechanism for a roll-to-roll printing machine comprises a winding roller and an unwinding roller arranged opposite to each other, a transfer film is connected between the winding roller and the unwinding roller, and also comprises a tensioning assembly, a transmission roller and a transfer roller arranged between the winding roller and the unwinding roller, the transmission roller is used to drive the substrate to move, the transfer roller is located above the transmission roller, and cooperates with the transmission roller to press the transfer film to achieve transfer of the substrate; the tensioning assembly comprises two groups arranged opposite to each other, the transfer film is arranged between the two groups of tensioning assemblies, and each group of tensioning assemblies comprises a pressure wheel group arranged on both sides of the transfer film.
[0006] Preferably, the pressing wheel assembly comprises a driving wheel and a driven wheel which are arranged opposite to each other, a tensioning belt is connected between the driving wheel and the driven wheel, and a driving mechanism is connected to the driving wheel.
[0007] Preferably, the driving wheels of the two groups of tensioning assemblies are connected via a driving shaft, the driving shaft is connected to a driving mechanism, and the driven wheels of the two groups of tensioning assemblies are connected via a connecting shaft.
[0008] Preferably, the tensioning belts of the two groups of tensioning assemblies form an acute angle with each other, and the distance between the two tensioning belts gradually increases from the unwinding roller to the winding roller.
[0009] Preferably, the angle between the two tension belts is a, and the value range of a is 3-5°.
[0010] Preferably, the angle between the two tension belts is 4°.
[0011] Preferably, a nozzle is provided on one side of the transmission roller, and the printing material is located between the nozzle and the transmission roller.
[0012] The transfer film tensioning mechanism of a roll-to-roll printing machine according to the embodiment of the utility model has the following beneficial effects compared with the prior art: a tensioning component is arranged between the winding roller and the unwinding roller, the tensioning component includes two groups arranged opposite to each other, the transfer film is arranged between the two groups of tensioning components, and each group of tensioning components includes two pressure wheel groups arranged on both sides of the transfer film. During transfer, the unwinding roller cooperates with the winding roller to unwind, and when passing through the tensioning component, the two pressure wheel groups opposite to each other of the two tensioning components respectively press the two sides of the transfer film, and cooperate with the winding roller and the unwinding roller to tighten the transfer film in the length direction, thereby realizing the tensioning of the four sides of the transfer film, ensuring the smooth coverage of the substrate by the transfer film, thereby ensuring the product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a schematic structural diagram of the transfer film tensioning mechanism of the roll-to-roll printing machine.
[0014] Figure 2 It is a top view of the transfer film tensioning mechanism of the roll-to-roll printing machine of the utility model.
[0015] Among them: 1-rewinding roller, 2-unwinding roller, 3-transfer film, 4-tensioning component, 41-driving wheel, 42-passive wheel, 43-tensioning belt, 44-driving shaft, 45-connecting shaft, 5-transmission roller, 6-transfer roller, 7-spray head, 8-substrate. DETAILED DESCRIPTION
[0016] 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.
[0017] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0018] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] like Figure 1-2 As shown, a transfer film tensioning mechanism of a roll-to-roll printing machine according to a preferred embodiment of the utility model comprises a winding roller 1 and an unwinding roller 2 arranged oppositely, a transfer film 3 is connected between the winding roller 1 and the unwinding roller 2, and also comprises a tensioning assembly 4, a transmission roller 5 and a transfer roller 6 arranged between the winding roller 1 and the unwinding roller 2, wherein the transmission roller 5 is used to drive the substrate 8 to move, and the substrate 8 is a roll-type substrate or a conveyor belt flow-type substrate 8. The transfer roller 6 is located above the transmission roller 5, and cooperates with the transmission roller 5 to press the transfer film 3 to achieve the transfer of the substrate 8; the tensioning assembly 4 comprises two groups arranged oppositely, and the transfer film 3 is arranged between the two groups of tensioning assemblies, and each group of tensioning assemblies comprises two pressing wheel groups arranged on both sides of the transfer film. That is, there are four pressing wheel groups, and two of the pressing wheel groups opposite to each other on the upper and lower surfaces of the transfer film 3 cooperate to achieve the pressing of the transfer film 3.
[0020] The transfer film tensioning mechanism of the roll-to-roll printing machine based on the above technical features is provided with a tensioning component 4 between the winding roller 1 and the unwinding roller 2. The tensioning component 4 includes two groups arranged opposite to each other. The transfer film 3 is arranged between the two groups of tensioning components 4. At the same time, each group of tensioning components 4 includes two pressure wheel groups arranged on both sides of the transfer film. During transfer, the unwinding roller 2 cooperates with the winding roller 1 to unwind. When passing through the tensioning component 4, the two opposite pressure wheel groups of the two groups of tensioning components 4 respectively press the two sides of the transfer film 3, and cooperate with the winding roller 1 and the unwinding roller 2 to tighten the transfer film 3 in the length direction, thereby realizing the tensioning of the four sides of the transfer film 3, ensuring the smooth coverage of the transfer film 3 on the substrate 8, thereby ensuring the product quality.
[0021] In this embodiment, the clamping wheel group includes a driving wheel 41 and a passive wheel 42 arranged opposite to each other, a tensioning belt 43 is connected between the driving wheel 41 and the passive wheel 42, and a driving mechanism is connected to the driving wheel 41. Specifically, the driving wheels 41 of the two sets of the tensioning components 4 are connected by a driving shaft 44, and the driving shaft 44 is connected to the driving mechanism, and the driving mechanism can be a motor. The passive wheels 42 of the two sets of the tensioning components 4 are connected by a connecting shaft 45, so that the tensioning components 4 located on the upper surface and the lower surface of the transfer film 3 are respectively formed into a whole.
[0022] In this embodiment, the tension belts 43 of the two sets of tensioning components 4 are at an acute angle, and the distance between the two tensioning belts 43 gradually increases from the unwinding roller 2 to the winding roller 1. In this way, when the transfer film 3 passes through the tensioning component 4, the two tensioning belts 43 present an outward-facing structure, and as the transfer film 3 moves, the tensioning belts 43 of the tensioning mechanism gradually stretch the transfer film 3 to both sides to achieve the effect of tensioning the transfer film 3. This tensioning method is suitable for the printing material 8 to be in the process of being constantly in motion, and the transfer film 3 can be tensioned uninterruptedly. Of course, since the tension belt 43 has a certain length, if the angle between the two tension belts 43 is large, the distance between the two driving wheels 41 and the width of the transfer film will be greatly different, so that the driving wheel 41 cannot effectively press the edge of the transfer film 3, affecting the pressing effect. Therefore, the angle between the two tension belts 43 cannot be too large; but if the angle between the two tension belts 43 is small, it will affect the tension of the tension belt to both sides to achieve the effect of tightening the transfer film 3. Therefore, the setting of the angle between the two tension belts 43 is very important. Preferably, if the angle between the two tension belts 43 is a, the value range of a is 3 to 5°, preferably 4°.
[0023] In this embodiment, a nozzle 7 is provided on one side of the driving roller 5, and the substrate 8 is located between the nozzle 7 and the driving roller 5, so that the substrate 8 can be printed and transferred at the same time during the working process, thereby improving the effect of the product. The nozzle can also use a printing trolley, and a plurality of nozzles are arranged on the printing trolley, and the plurality of nozzles are used to spray inks of different colors to ensure the printing effect. At the same time, the printing trolley can also move in real time according to the pattern to be printed, further ensuring the printing effect.
[0024] 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 film tensioning mechanism for a roll-to-roll printing machine, comprising a reeling roller and an unreeling roller arranged opposite to each other, wherein the transfer film is connected between the reeling roller and the unreeling roller, and characterized in that: It also includes a tensioning assembly, a drive roller and a transfer roller arranged between the winding roller and the unwinding roller, the drive roller is used to drive the substrate to move, the transfer roller is located above the drive roller, and cooperates with the drive roller to press the transfer film to achieve transfer of the substrate; the tensioning assembly includes two groups arranged opposite to each other, the transfer film is arranged between the two groups of tensioning assemblies, and each group of tensioning assemblies includes a pressure wheel group arranged on both sides of the transfer film.
2. The transfer film tensioning mechanism of a roll-to-roll printing press as claimed in claim 1, characterized in that: The clamping wheel assembly comprises a driving wheel and a driven wheel which are arranged opposite to each other, a tensioning belt is connected between the driving wheel and the driven wheel, and a driving mechanism is connected to the driving wheel.
3. The transfer film tensioning mechanism of a roll-to-roll printing press as claimed in claim 2, characterized in that: The driving wheels of the two groups of tensioning assemblies are connected via a driving shaft, the driving shaft is connected to a driving mechanism, and the passive wheels of the two groups of tensioning assemblies are connected via a connecting shaft.
4. The transfer film tensioning mechanism of a roll-to-roll printing press as claimed in claim 2, characterized in that: The tension belts of the two groups of tensioning assemblies form an acute angle with each other, and the distance between the two tension belts gradually increases from the unwinding roller to the winding roller.
5. The transfer film tensioning mechanism of a roll-to-roll printing press as claimed in claim 4, characterized in that: The angle between the two tension belts is a, and the value range of a is 3-5°.
6. The transfer film tensioning mechanism of a roll-to-roll printing press as claimed in claim 5, characterized in that: The angle between the two tension belts is 4°.
7. The transfer film tensioning mechanism of a roll-to-roll printing press according to any one of claims 1 to 6, characterized in that: A nozzle is arranged on one side of the transmission roller, and the printing material is located between the nozzle and the transmission roller.