Film feeding mechanism of digital printing machine

Abstract

The utility model relates to the technical field of printing machines, and discloses a film feeding mechanism of a digital printing machine, which is arranged on a bearing seat of a transfer printing cylinder, the transfer printing cylinder can move transversely, the film feeding mechanism comprises a clamping mechanism, a connecting plate and a lifting mechanism arranged on the bearing seat, the connecting plate comprises a driving end and a film clamping end, the driving end is connected with the lifting mechanism, and the film clamping end is connected with the lifting mechanism. The film clamping end is provided with a first clamping head and a second clamping head which are matched with each other, and the clamping mechanism is used for driving the second clamping head to move towards or away from the first clamping head. When a film needs to be fed, the transfer printing film is clamped firstly, then the film feeding mechanism moves along with the transfer printing roller in the direction away from the unwinding mechanism till the transfer printing film completely covers a printing stock, and therefore automatic film feeding is achieved. Meanwhile, due to the fact that the two sides of one end of the transfer printing film are clamped at the same time in the film feeding process, it is guaranteed that the two sides of the transfer printing film are evenly stressed, the transfer printing film is prevented from wrinkling in the film feeding process, and the transfer printing effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a film feeding mechanism of a digital printing machine. Background Art

[0002] In the thermal transfer process of digital printing machines, the transfer film needs to be completely covered on the surface of the substrate, and then the transfer roller is pressed down to achieve transfer. In the film feeding process of existing printing machines, the transfer film is sent manually from the unwinding mechanism to the film clamping and tensioning mechanism on the side opposite to the working platform and the unwinding mechanism. Not only is the work efficiency low, but manual film feeding cannot ensure uniform force on both sides of the transfer film, which may cause the transfer film to wrinkle, affecting the final product effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a film feeding mechanism of a digital printing machine, which realizes automatic film feeding, ensures uniform force on both sides of the transfer film, and ensures the transfer effect.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A film feeding mechanism of a digital printing machine includes a clamping mechanism, a connecting plate and a lifting mechanism. The lifting mechanism is used to connect to a bearing seat of a transfer roller that can move laterally. The connecting plate includes a driving end and a film clamping end. The driving end is connected to the lifting mechanism. The film clamping end is provided with a matching first chuck and a second chuck. The clamping mechanism is used to drive the second chuck to move toward or away from the first chuck.

[0006] Preferably, the lifting mechanism is a lifting cylinder, the cylinder barrel of the lifting cylinder is connected to the bearing seat, and the telescopic rod of the lifting cylinder is connected to the driving end.

[0007] Preferably, a first fixing plate is connected to the telescopic rod of the lifting cylinder, and the connecting plate is connected to the first fixing plate.

[0008] Preferably, the driving end is connected to a second fixing plate, and the first fixing plate is bolted to the second fixing plate.

[0009] Preferably, the clamping mechanism is a clamping cylinder, a cylinder barrel of the clamping cylinder is connected to the connecting plate, and a telescopic rod of the clamping cylinder is connected to the second clamping head.

[0010] Preferably, the clamping membrane end is provided with a mounting groove, a third fixing plate is provided on one side of the mounting groove, the cylinder barrel of the clamping cylinder is connected to the mounting groove, and the first clamping head is connected to the third fixing plate.

[0011] Preferably, the first clamp is L-shaped, and comprises a connecting portion and a clamping portion, the connecting portion is connected to the third fixing plate, and the clamping portion cooperates with the second clamp.

[0012] Compared with the prior art, the film feeding mechanism of a digital printing machine of the utility model has the following beneficial effects: by setting it on the bearing seat of the transfer roller, the transfer roller can move laterally, by setting a connecting plate on the bearing seat and connecting it through a lifting mechanism, and by setting a matching first chuck and a second chuck at the other end of the connecting plate, and by driving the second chuck to move toward or away from the first chuck through the clamping mechanism, when the film needs to be fed, first place the two sides of one end of the transfer film between the corresponding first chuck and the second chuck respectively, and then drive the second chuck to move toward the first chuck by the clamping mechanism to clamp the transfer film, and then the film feeding mechanism moves with the transfer roller in the direction away from the unwinding mechanism until the transfer film completely covers the substrate, thereby realizing automatic film feeding. At the same time, since the two sides of one end of the transfer film are clamped at the same time during the film feeding process, the force on both sides of the transfer film is guaranteed to be uniform, and the transfer film is prevented from wrinkling during the film feeding process, and the transfer effect is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the film feeding mechanism of the digital printing machine of the utility model.

[0014] Figure 2 It is a partial view of the film feeding mechanism of the digital printing machine of the utility model.

[0015] Figure 3 It is a structural schematic diagram of a connecting plate of a film feeding mechanism of a digital printing machine of the present utility model.

[0016] Among them: 1-transfer roller, 2-bearing seat, 3-connecting plate, 31-mounting groove, 4-first chuck, 41-connecting part, 42-clamping part, 5-second chuck, 6-lifting cylinder, 7-first fixed plate, 8-clamping cylinder, 9-third fixed plate, a-second fixed plate. DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] 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.

[0020] like Figure 1-3 As shown, a film feeding mechanism of a digital printing press in a preferred embodiment of the utility model is arranged on the bearing seat 2 of the transfer roller 1 of the digital printing press, and is arranged on both of the bearing shafts 2. The transfer roller 1 can move laterally. The film feeding mechanism of the digital printing press includes a clamping mechanism, a connecting plate 3, and a lifting mechanism arranged on the bearing seat 2. The connecting plate 3 includes a driving end and a film clamping end. The driving end is connected to the lifting mechanism. The film clamping end is provided with a matching first chuck 4 and a second chuck 5. The clamping mechanism is used to drive the second chuck 5 to move toward or away from the first chuck 4.

[0021] The film feeding mechanism of the digital printing machine based on the above technical features is arranged on the bearing seat 2 of the transfer roller 1, and the transfer roller 1 can move laterally. A connecting plate 3 is arranged on the bearing seat 2 and connected by a lifting mechanism. At the same time, a matching first chuck 4 and a second chuck 5 are arranged at the other end of the connecting plate 3, and the second chuck 5 is driven by the clamping mechanism to move toward or away from the first chuck 4. When the film needs to be fed, the two sides of one end of the transfer film are first placed between the corresponding first chuck 4 and the second chuck 5, and then the clamping mechanism drives the second chuck 5 to move toward the first chuck 4 to clamp the transfer film. Then the film feeding mechanism moves with the transfer roller 1 in a direction away from the unwinding mechanism until the transfer film completely covers the substrate, thereby realizing automatic film feeding. At the same time, since both sides of one end of the transfer film are clamped at the same time during the film feeding process, the force on both sides of the transfer film is ensured to be uniform, and the transfer film is prevented from wrinkling during the film feeding process, and the transfer effect is ensured.

[0022] When the transfer film completely covers the substrate, the film clamping mechanism on the printing press clamps the transfer film, and then the first clamping head 4 and the second clamping head 5 of the film feeding mechanism of the utility model release the transfer film, and the transfer roller 1 performs transfer.

[0023] In this embodiment, the lifting mechanism is a lifting cylinder 6, the cylinder barrel of the lifting cylinder 6 is connected to the bearing seat 2, and the telescopic rod of the lifting cylinder 6 is connected to the driving end. Specifically, a first fixing plate 7 is connected to the telescopic rod of the lifting cylinder 6, and a second fixing plate a is connected to the driving end. The first fixing plate 7 is bolted to the second fixing plate a. The connection between the first fixing plate 7 and the second fixing plate a increases the connection area between the lifting cylinder 6 and the connecting plate 3, thereby ensuring the stability of the connection. The second fixing plate a and the connecting plate 3 can also be integrally formed.

[0024] In this embodiment, the clamping mechanism is a clamping cylinder 8, the cylinder barrel of the clamping cylinder 8 is connected to the connecting plate 3, and the telescopic rod of the clamping cylinder 8 is connected to the second clamp 5. Specifically, the clamping film end is provided with a mounting groove 31, one side of the mounting groove 31 is provided with a third fixing plate 9, the cylinder barrel of the clamping cylinder 8 is connected to the mounting groove 31, and the first clamp 4 is connected to the third fixing plate 9. The first clamp 4 is L-shaped, including a connecting portion 41 and a clamping portion 42, the connecting portion 41 is connected to the third fixing plate 9, and the clamping portion 42 cooperates with the second clamp 5 to achieve clamping of the transfer film.

[0025] 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 film feeding mechanism for a digital printing machine, characterized in that: It includes a clamping mechanism, a connecting plate and a lifting mechanism, wherein the lifting mechanism is used to connect to a bearing seat of a transfer roller that can move laterally, the connecting plate includes a driving end and a clamping film end, the driving end is connected to the lifting mechanism, the clamping film end is provided with a matching first clamp and a second clamp, and the clamping mechanism is used to drive the second clamp to move toward or away from the first clamp.

2. The film feeding mechanism of a digital printing machine according to claim 1, characterized in that: The lifting mechanism is a lifting cylinder, the cylinder barrel of the lifting cylinder is connected to the bearing seat, and the telescopic rod of the lifting cylinder is connected to the driving end.

3. The film feeding mechanism of a digital printing machine as claimed in claim 2, characterized in that: A first fixing plate is connected to the telescopic rod of the lifting cylinder, and the connecting plate is connected to the first fixing plate.

4. The film feeding mechanism of a digital printing machine as claimed in claim 3, characterized in that: The driving end is connected to a second fixing plate, and the first fixing plate is bolted to the second fixing plate.

5. The film feeding mechanism of a digital printing machine according to any one of claims 1 to 4, characterized in that: The clamping mechanism is a clamping cylinder, a cylinder barrel of the clamping cylinder is connected to the connecting plate, and a telescopic rod of the clamping cylinder is connected to the second clamping head.

6. The film feeding mechanism of a digital printing machine as claimed in claim 5, characterized in that: The clamping membrane end is provided with a mounting groove, a third fixing plate is provided on one side of the mounting groove, the cylinder barrel of the clamping cylinder is connected to the mounting groove, and the first clamping head is connected to the third fixing plate.

7. The film feeding mechanism of a digital printing machine according to claim 6, characterized in that: The first clamp is L-shaped and includes a connecting portion and a clamping portion, the connecting portion is connected to the third fixing plate, and the clamping portion cooperates with the second clamp.

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