Clamping film tensioning mechanism of digital printing machine
By designing a film absorbing mechanism in a digital printing press, the horizontal tightening of the transfer film is achieved by combining the clamping assembly and the tightening cylinder, which solves the problem of uneven cuts, avoids the waste of transfer film, and improves printing efficiency and product quality.
Patent Information
- Application Number
- CN202421711239.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In the thermal transfer process of digital printing presses, the transfer film will loosen horizontally after cutting, resulting in uneven cuts and waste of transfer film.
A membrane absorbing mechanism of a digital printing press is designed. By setting a clamping assembly at one end of the cylinder connecting frame and a tightening cylinder at the other end, the clamping assembly is raised under the driving of the tightening cylinder to achieve horizontal tightening of the transfer film and ensure the flatness of the cutout.
Through the use of this film absorbing mechanism, the incision can be ensured to be flat when cutting the transfer film, avoid waste of the transfer film, and improve printing efficiency and product quality.
Smart Images
Figure CN222793011U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing machines, in particular to a film absorbing mechanism of a digital printing machine. Background Art
[0002] In the thermal transfer process of the digital printing machine, the transferred transfer film needs to be cut off, and then the new transfer film is used for the transfer of the next batch of products. However, after the transfer is completed, the film clamping tensioning mechanism and the tensioning mechanism connecting the film roll will be loosened, but the film clamping tensioning mechanism only moves in the vertical direction, and the film loses the lateral tensioning force, but the clamp on the film clamping tensioning mechanism is still in the clamping state, so the transfer film on the platform will not move in its length direction, but the transfer film will be loose in the horizontal direction (width direction), which will cause the heater film cutting mechanism to cut the film unevenly, and the uneven part will not be used, resulting in waste of transfer film. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a film suction mechanism for a digital printing machine, which can clamp and tighten the transfer film in the film cutting stage, ensure the smoothness of the incision, and avoid waste of the transfer film.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A film clamping and tensioning mechanism for a digital printing machine comprises two mechanism bodies arranged opposite to each other, the mechanism bodies comprising a cylinder connecting frame arranged obliquely toward a horizontal plane, one end of the cylinder connecting frame is provided with a clamping assembly for clamping a transfer film, the other end of the cylinder connecting frame is provided with a tensioning cylinder, the telescopic rod of the tensioning cylinder is connected to the cylinder connecting frame, the cylinder barrel of the tensioning cylinder is connected to a cylinder fixing piece, and the cylinder fixing piece is used to connect to a frame of the digital printing machine.
[0006] Preferably, the clamping assembly comprises a clamping cylinder and a fixing clamp arranged on the cylinder connecting frame, a clamping block is connected to the telescopic rod of the clamping cylinder, and the clamping block cooperates with the fixing clamp to clamp the transfer film.
[0007] Preferably, the fixing clamp comprises a connecting plate and a clamping plate connected to each other, the other end of the connecting plate is connected to the cylinder connecting frame, and the clamping plate is arranged directly above the pressing block.
[0008] Preferably, the cylinder connecting frame includes a first mounting portion and a second mounting portion, the clamping assembly is connected to the first mounting portion, the tensioning cylinder is connected to the second mounting portion, and the second mounting portion is inclined toward a horizontal plane.
[0009] Preferably, the second mounting portion is in the shape of a plate, and the angle between the upper surface or the lower surface of the second mounting portion and the horizontal plane is a, and the value range of a is 5 to 30 degrees.
[0010] Preferably, the tensioning cylinder is a three-axis cylinder, and a fixing plate of the three-axis cylinder is connected to the second mounting portion.
[0011] Preferably, an abutting surface is provided at one end of the first mounting portion close to the second mounting portion, and an end surface of one end of the fixing plate abuts against the abutting surface.
[0012] The film clamping and tensioning mechanism of a digital printing machine in the embodiment of the utility model has the beneficial effect compared with the prior art that a clamping assembly for clamping the transfer film is arranged at one end of the cylinder connecting frame, and a tensioning cylinder is arranged at the other end, and at the same time, the cylinder barrel of the tensioning cylinder is connected to the cylinder fixing piece, and the cylinder fixing piece is used to connect the digital printing machine frame, that is, the cylinder barrel position of the tensioning cylinder is fixed, and when the transfer is completed and the film needs to be cut, the clamping assembly first clamps the transfer film, and then the tensioning cylinder drives the clamping assembly to rise. Since the cylinder connecting frame is arranged at an angle, the clamping assembly will also move laterally during the process of the tensioning cylinder driving the clamping assembly to rise, so that under the action of the two relative mechanism bodies, the transfer film is tightened at a certain height in the horizontal direction, and then cutting is performed to ensure the flatness of the incision, thereby avoiding the waste of transfer film caused by uneven incision. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the film clamping and tensioning mechanism of the digital printing machine of the utility model.
[0014] Figure 2 It is an axonometric view of the main body of the mechanism of the present utility model.
[0015] Figure 3 It is a structural schematic diagram of the cylinder connecting frame of the utility model.
[0016] Among them: 1-cylinder connecting frame, 11-first mounting part, 12-second mounting part, 13-abutting surface, 2-tensioning cylinder, 21-fixing plate, 3-cylinder fixing part, 4-clamping cylinder, 5-fixing clamp, 51-connecting plate, 52-clamping plate, 6-pressing block, 100-mechanism body, 200-transfer film. 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 1-2 As shown, a digital printing press film clamping and tensioning mechanism of a preferred embodiment of the utility model is arranged between the heating wire film cutting mechanism and the transfer rubber roller of the multifunctional digital printing press. It includes two mechanism bodies 100 arranged opposite to each other, and the mechanism body 100 includes a cylinder connecting frame 1 arranged obliquely toward the horizontal plane, one end of the cylinder connecting frame 1 is provided with a clamping assembly for clamping the transfer film 200, and the other end of the cylinder connecting frame 1 is provided with a tensioning cylinder 2, the telescopic rod of the tensioning cylinder 2 is connected to the cylinder connecting frame 1, and the cylinder barrel of the tensioning cylinder 2 is connected to the cylinder fixing member 3, and the cylinder fixing member 3 is used to connect the digital printing press frame. The cylinder fixing member 3 can be a fixing plate or a fixing frame.
[0021] The film clamping and tensioning mechanism of the digital printing machine based on the above technical features is provided with a clamping assembly for clamping the transfer film 200 at one end of the cylinder connecting frame 1, and a tensioning cylinder 2 is provided at the other end, and at the same time, the cylinder barrel of the tensioning cylinder 2 is connected to the cylinder fixing part 3, and the cylinder fixing part 3 is used to connect the digital printing machine frame, that is, the cylinder barrel position of the tensioning cylinder 2 is fixed, and when the transfer is completed and the film needs to be cut, the clamping assembly first clamps the transfer film 200, and then the tensioning cylinder 2 drives the clamping assembly to rise. Since the cylinder connecting frame 1 is inclined, the clamping assembly will also move laterally during the process of the tensioning cylinder 2 driving the clamping assembly to rise, so that under the action of the two relative mechanism bodies 100, the transfer film 200 is tightened at a certain height in the horizontal direction, and then cutting is performed to ensure the flatness of the incision, thereby avoiding the waste of the transfer film 200 caused by the uneven incision.
[0022] In this embodiment, the clamping assembly includes a clamping cylinder 4 and a fixing clamp 5 arranged on the cylinder connecting frame 1. A clamping block 6 is connected to the telescopic rod of the clamping cylinder 4. The clamping block 6 cooperates with the fixing clamp 5 to clamp the transfer film 200. Specifically, the fixing clamp 5 includes a connecting plate 51 and a clamping plate 52 connected to each other, that is, the fixing clamp 5 is L-shaped. The other end of the connecting plate 51 is connected to the cylinder connecting frame 1. The clamping plate 52 is arranged just above the clamping block 6. The transfer film 200 is located between the clamping plate 52 and the clamping block 6. When the clamping cylinder 4 rises, the clamping block 6 is driven to rise, and the transfer film 200 is clamped between the clamping plate 52 and the clamping block 6 to achieve clamping.
[0023] Please see attached Figure 3 In this embodiment, the cylinder connecting frame 1 includes a first mounting portion 11 and a second mounting portion 12, the clamping assembly is connected to the first mounting portion 11, the tensioning cylinder 2 is connected to the second mounting portion 12, and the second mounting portion 12 is inclined toward the horizontal plane. Specifically, the second mounting portion 12 is in the shape of a plate, and the angle between the upper surface or the lower surface of the second mounting portion 12 and the horizontal plane is a, and the value range of a is 5 to 30°, such as 6°, 8°, 10°, 12°, 15°, 20°, 25°, 28°, etc. The specific angle needs to be determined according to the specifications of the tensioning cylinder to ensure that the clamping assembly can move about 10 mm laterally under its maximum stroke.
[0024] In this embodiment, the tensioning cylinder 2 is a three-axis cylinder, and the fixing plate 21 of the three-axis cylinder is connected to the second mounting portion 12 to ensure the stability of the overall movement of the clamping assembly. The first mounting portion 11 is provided with an abutting surface 13 at one end close to the second mounting portion 12, and the end surface of one end of the fixing plate 21 abuts against the abutting surface 13. At the same time, the fixing plate 21 has the same shape as the first mounting portion 11, and the upper surface of the fixing plate 21 is completely fitted with the lower surface of the first mounting portion 11, ensuring the connection stability of the tensioning cylinder 2 and the cylinder connecting frame 1.
[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 clamping and tightening mechanism for a digital printing machine, characterized in that: It comprises two mechanism bodies arranged opposite to each other, wherein the mechanism bodies comprise a cylinder connecting frame inclined toward a horizontal plane, one end of the cylinder connecting frame is provided with a clamping assembly for clamping a transfer film, the other end of the cylinder connecting frame is provided with a tensioning cylinder, the telescopic rod of the tensioning cylinder is connected to the cylinder connecting frame, the cylinder barrel of the tensioning cylinder is connected to a cylinder fixing piece, and the cylinder fixing piece is used to connect to a digital printing machine frame.
2. The film clamping and tensioning mechanism of a digital printing machine as claimed in claim 1, characterized in that: The clamping assembly comprises a clamping cylinder and a fixing clamp arranged on the cylinder connecting frame. A clamping block is connected to the telescopic rod of the clamping cylinder. The clamping block cooperates with the fixing clamp to clamp the transfer film.
3. The film clamping and tightening mechanism of a digital printing machine as claimed in claim 2, characterized in that: The fixing clamp comprises a connecting plate and a clamping plate connected to each other, the other end of the connecting plate is connected to the cylinder connecting frame, and the clamping plate is arranged just above the pressing block.
4. The film clamping and tightening mechanism of a digital printing machine as claimed in claim 1, characterized in that: The cylinder connecting frame includes a first mounting portion and a second mounting portion, the clamping assembly is connected to the first mounting portion, the tensioning cylinder is connected to the second mounting portion, and the second mounting portion is arranged to be inclined toward a horizontal plane.
5. The film clamping and tightening mechanism of a digital printing machine as claimed in claim 4, characterized in that: The second mounting portion is in the shape of a plate, and the angle between the upper surface or the lower surface of the second mounting portion and the horizontal plane is a, and the value range of a is 5 to 30 degrees.
6. The film clamping and tensioning mechanism of a digital printing machine as claimed in claim 5, characterized in that: The tensioning cylinder is a three-axis cylinder, and a fixing plate of the three-axis cylinder is connected to the second mounting portion.
7. The film clamping and tensioning mechanism of a digital printing machine as claimed in claim 6, characterized in that: An end of the first mounting portion close to the second mounting portion is provided with an abutting surface, and an end surface of one end of the fixing plate abuts against the abutting surface.