Transfer printing roller lifting and moving mechanism of digital printing machine

Abstract

The utility model relates to the technical field of printing machines, and discloses a digital printing machine transfer printing roller lifting and moving mechanism which comprises two rack guide rails which are symmetrically arranged and two driving assemblies which are arranged in one-to-one correspondence with the two rack guide rails, and the two rack guide rails are used for being arranged on the two sides of a transfer printing machine rack. The driving assembly comprises a mounting frame, a lead screw and a first power mechanism used for driving the lead screw to rotate are arranged on the mounting frame, bearing seats are connected to the upper end of the lead screw, and a transfer printing roller is connected between the two bearing seats; a gear meshed with the rack guide rail is further arranged on the mounting frame, and the gear is driven by a second power mechanism to rotate. According to the lifting and moving mechanism for the transfer printing roller of the digital printing machine, the moving stability of the transfer printing roller can be effectively guaranteed, 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 lifting and moving mechanism for a transfer roller of a digital printing machine. Background Art

[0002] In the thermal transfer process of a digital printing machine, when the transfer film is completely covered on the surface of the substrate and pressed, the transfer roller is pressed down and then moves along the length direction of the transfer platform to achieve the entire transfer of the product. Therefore, the transfer roller needs to be lifted and moved during the whole process. However, the existing transfer roller lifting and moving mechanism is unstable during the movement process, which affects the transfer effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a lifting and moving mechanism for a transfer roller of a digital printing machine, which ensures the stability of the movement of the transfer roller and the transfer effect.

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

[0005] A transfer roller lifting and moving mechanism for a digital printing machine comprises two symmetrically arranged rack guides and two driving assemblies arranged one-to-one corresponding to the two rack guides, wherein the two rack guides are arranged on both sides of a transfer machine frame;

[0006] The driving assembly includes a mounting frame, on which a screw and a first power mechanism for driving the screw to rotate are provided, the upper end of the screw is connected to a bearing seat, and a transfer roller is connected between the two bearing seats; the mounting frame is also provided with a gear meshing with the rack guide rail, and the gear is driven to rotate by a second power mechanism.

[0007] Preferably, the rack guide rail comprises a plane and a tooth surface which are arranged opposite to each other, and the tooth surface is located below the plane;

[0008] The mounting frame is provided with a sliding block, the sliding block is slidably connected to the plane, and the gear is arranged inside the sliding block.

[0009] Preferably, the sliding block is provided with a sliding groove extending through both ends thereof, the sliding groove is sleeved on the rack guide rail, and the upper inner wall of the sliding groove is in sliding connection with the plane.

[0010] Preferably, a limiting strip is provided on the plane, a limiting groove connected with the sliding groove is provided on the sliding block, and two side surfaces of the limiting strip are in contact with two inner walls of the limiting groove.

[0011] Preferably, the two first power mechanisms and the two second power mechanisms are connected via a connecting rod.

[0012] Preferably, a connecting frame is connected between the two mounting frames, the connecting frame is provided with a connecting ear, and the middle part of the connecting rod is connected to the connecting ear.

[0013] Preferably, the first power mechanism includes a first driving pulley and a first passive pulley rotatably connected to the mounting frame, a first belt is connected between the first driving pulley and the first passive pulley, the first driving pulley is connected to a first motor, and the first passive pulley is connected to the screw rod.

[0014] Preferably, a worm is connected to the center of the first passive pulley, a rotating drum is threadedly connected to the lead screw, and a turbine matched with the worm is provided on the rotating drum.

[0015] Preferably, the second power mechanism includes a second driving pulley and a second passive pulley rotatably connected to the mounting frame, a second belt is connected between the second driving pulley and the second passive pulley, the second driving pulley is connected to a second motor, and the second passive pulley is connected to the gear.

[0016] Preferably, guide cylinders are respectively provided on both sides of the screw rod on the mounting frame, a guide rod is inserted into the guide tube, and the upper end of the guide rod is connected to the bearing seat.

[0017] Compared with the prior art, the transfer roller lifting and moving mechanism of a digital printing machine in the embodiment of the utility model has the following beneficial effects: by setting a screw rod connected to a bearing seat on the mounting frame of the driving component, and connecting the transfer roller between the two bearing seats, the lifting and lowering of the transfer roller is realized by the rotation of the screw rod, and the high precision of the screw rod ensures the stability of the lifting and lowering of the transfer roller. At the same time, by setting a gear meshing with the rack guide on the mounting frame, the gear is driven to rotate by the second motor mechanism, and since the two rack guides are symmetrically arranged on both sides of the transfer machine frame, the two driving components are arranged one by one with the two rack guides, thereby ensuring the symmetry of the driving force at both ends of the transfer roller, and the two ends of the transfer roller will always move synchronously; at the same time, since the transfer roller moves along the rack guide during the movement process, it is ensured that there will be no positional deviation during its movement, thereby effectively ensuring the stability of the transfer roller movement, thereby ensuring the transfer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the structure of the lifting and moving mechanism of the transfer roller of the digital printing machine.

[0019] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0020] Figure 3It is a schematic diagram of the cooperation between the first power mechanism and the lead screw of the transfer roller lifting and moving mechanism of the digital printing machine of the utility model.

[0021] Wherein: 1- rack guide rail, 2- mounting frame, 3- lead screw, 4- bearing seat, 5- transfer roller, 6- gear, 7- slider, 8- limit bar, 9- connecting rod, 10- connecting frame, 11- connecting ear, 12- first driving pulley, 13- first passive pulley, 14- first motor, 15- worm, 16- rotating drum, 17- turbine, 18- second driving pulley, 19- second passive pulley, 20- second motor, 21- guide drum, 22- guide rod. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] 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.

[0025] like Figure 1-2 As shown, a digital printing machine transfer roller lifting and moving mechanism of a preferred embodiment of the utility model comprises two symmetrically arranged rack guide rails 1, and two driving assemblies arranged one-to-one corresponding to the two rack guide rails, and the two rack guide rails are used to be arranged on both sides of the transfer machine frame;

[0026] The driving assembly includes a mounting frame 2, on which a screw rod 3 and a first power mechanism for driving the screw rod 3 to rotate are provided, the upper end of the screw rod 3 is connected to a bearing seat 4, and a transfer roller 5 is connected between the two bearing seats 4, that is, the screw rod 3 is driven to rotate by the first power mechanism to achieve the lifting and lowering of the transfer roller 5. The mounting frame 2 is also provided with a gear 6 meshing with the rack guide 1, and the gear 6 is driven to rotate by the second power mechanism, that is, the gear 6 is driven to move along the rack guide 1 by the second power mechanism to achieve the translation of the transfer roller 5.

[0027] The transfer roller lifting and moving mechanism of the digital printing machine based on the above technical features is provided with a screw rod 3 connected to a bearing seat 4 on the mounting frame 2 of the driving component, and a transfer roller 5 is connected between the two bearing seats 4, that is, the lifting and lowering of the transfer roller 5 is realized by the rotation of the screw rod 3. Due to the high precision of the screw rod 3, the lifting and lowering stability of the transfer roller 5 is ensured. At the same time, by providing a gear 6 meshing with the rack guide 1 on the mounting frame 2, the gear 6 is driven to rotate by the second motor mechanism, and since the two rack guides 1 are symmetrically arranged on both sides of the transfer machine frame, the two driving components are arranged one by one with the two rack guides 1, thereby ensuring the symmetry of the driving force at both ends of the transfer roller 5, and the two ends of the transfer roller 5 will always move synchronously; at the same time, since the transfer roller 5 moves along the rack guide 1 during the movement process, it is ensured that there will be no positional deviation during its movement, thereby effectively ensuring the stability of the movement of the transfer roller 5, thereby ensuring the transfer effect.

[0028] In this embodiment, the rack guide 1 includes a plane and a tooth surface that are arranged opposite to each other, and the tooth surface is located below the plane; a slider 7 is provided on the mounting frame 2, and the slider 7 is slidably connected to the plane, and the gear 6 is arranged inside the slider 7. When the gear 6 rotates, the gear 6 moves along the rack guide 1, and the slider 7 drives the mounting frame 2 to move, thereby realizing the movement of the transfer roller 5. To ensure the stability of movement, multiple gears 6 can be arranged inside the slider 7, such as two gears 6 are arranged at the front and rear of the slider 7. The gears 6 are all rotatably connected to the side wall of the slider 7, and one of the gears 6 is connected to the second power mechanism.

[0029] In this embodiment, in order to further ensure the stability of the movement of the transfer roller 5, the slider 7 is provided with a slide groove that runs through both ends thereof, the slide groove is sleeved on the rack guide 1, and the upper inner wall of the slide groove is in sliding contact with the plane. When the gear 6 moves along the tooth surface of the rack guide 1, the slide groove slides along the plane of the rack guide 1, ensuring the overall stability of the movement of the slider 7. At the same time, a limit bar 8 is provided on the plane, and a limit groove connected to the slide groove is provided on the slider 7. The two side surfaces of the limit bar 8 fit with the two inner walls of the limit groove, that is, when the slider 7 slides along the plane, it is also limited by the limit bar 8, ensuring that the slider 7 can only move along the length direction of the rack guide 1. Therefore, under the cooperation of the gear 6 and the rack guide 1, combined with the role of the slide groove and the limit bar, the overall movement of the mounting frame 2 has good stability, thereby effectively ensuring the transfer effect of the product.

[0030] Please refer to the attached Figure 3 In this embodiment, the first power mechanism includes a first active pulley 12 and a first passive pulley 13 rotatably connected to the mounting frame 2, a first belt is connected between the first active pulley 12 and the first passive pulley 13, the first active pulley 12 is connected to a first motor 14, and the first passive pulley 13 is connected to the screw 3, that is, the first active pulley 12 is driven to rotate by the first motor 14, the first active pulley 12 drives the first passive pulley 13 to rotate through the first belt, and the first passive pulley 13 drives the screw 3 to rotate. Specifically, a worm 15 is connected to the center of the first passive pulley 13, a rotating drum 16 is threadedly connected to the screw 3, and a turbine 17 matching the worm 15 is provided on the rotating drum 16. When the first passive pulley 13 rotates, the worm 15 is driven to rotate, and the worm 15 drives the rotating drum 16 to rotate. Since the rotating drum 16 is threadedly connected to the screw 3 and the rotating drum 16 does not move up and down, the screw 3 is lifted and lowered, and the bearing seat 4 drives the transfer roller 5 to lift and lower.

[0031] In addition, in order to ensure the stability and accuracy of the movement of the bearing seat 4, the mounting frame 2 is provided with guide cylinders 21 on both sides of the screw rod 3, and a guide rod 22 is inserted into the guide cylinder 21, and the upper end of the guide rod 22 is connected to the bearing seat 4. That is, the screw rod 3 is located between the two guide rods 22, and the lifting and lowering of the screw rod 3 is guided by the guide rod 22, which ensures the stability and accuracy of the screw rod 3 driving the lifting and lowering of the bearing seat 4.

[0032] In this embodiment, the second power mechanism includes a second active pulley 18 and a second passive pulley 19 rotatably connected to the mounting frame 2, a second belt is connected between the second active pulley 18 and the second passive pulley 19, the second active pulley 18 is connected to the second motor 20, and the second passive pulley 19 is connected to the gear 6 via a connecting shaft. The second motor 20 rotates to drive the second active pulley 18 to rotate, the second active pulley 18 drives the second passive pulley 19 to rotate via the second belt, and the second passive pulley 19 drives the gear 6 to rotate.

[0033] In addition, in order to connect the two driving components into a whole, thereby further improving the stability of the transfer roller 5, a connecting rod 9 is connected between the two first motors 14 and the two second motors 20, and in order to ensure the stability of the connecting rod 9 itself, a connecting frame 10 is connected between the two mounting frames 2, and the connecting frame 10 is provided with a connecting ear 11, and the middle part of the connecting rod 9 is connected to the connecting ear 11, so that the lower ends of the two driving components form a whole. The upper ends of the two driving components are connected through the transfer roller 5, so that the two driving components are connected into a whole, further improving the stability of the transfer roller 5.

[0034] 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 lifting and moving mechanism for a transfer roller of a digital printing press, characterized in that: It includes two symmetrically arranged rack guide rails and two driving assemblies arranged one-to-one corresponding to the two rack guide rails, and the two rack guide rails are used to be arranged on both sides of the transfer machine frame; The driving assembly includes a mounting frame, on which a screw and a first power mechanism for driving the screw to rotate are provided, the upper end of the screw is connected to a bearing seat, and a transfer roller is connected between the two bearing seats; the mounting frame is also provided with a gear meshing with the rack guide rail, and the gear is driven to rotate by a second power mechanism.

2. The transfer roller lifting and moving mechanism of a digital printing press according to claim 1, characterized in that: The rack guide rail includes a plane and a tooth surface that are arranged opposite to each other, and the tooth surface is located below the plane; The mounting frame is provided with a sliding block, the sliding block is slidably connected to the plane, and the gear is arranged inside the sliding block.

3. The transfer roller lifting and moving mechanism of a digital printing press according to claim 2, characterized in that: The sliding block is provided with a sliding groove which penetrates to both ends thereof, the sliding groove is sleeved on the rack guide rail, and the upper inner wall of the sliding groove is in sliding connection with the plane.

4. The transfer roller lifting and moving mechanism of a digital printing press as claimed in claim 3, characterized in that: A limiting strip is arranged on the plane, a limiting groove connected with the sliding groove is arranged on the sliding block, and two side surfaces of the limiting strip are in contact with two inner walls of the limiting groove.

5. The transfer roller lifting and moving mechanism of a digital printing press according to any one of claims 1 to 4, characterized in that: The two first power mechanisms and the two second power mechanisms are connected via a connecting rod.

6. The transfer roller lifting and moving mechanism of a digital printing press according to claim 5, characterized in that: A connecting frame is connected between the two mounting frames, and a connecting ear is provided on the connecting frame. The middle part of the connecting rod is connected to the connecting ear.

7. The transfer roller lifting and moving mechanism of a digital printing press according to any one of claims 1 to 4, characterized in that: The first power mechanism includes a first active pulley and a first passive pulley rotatably connected to the mounting frame, a first belt is connected between the first active pulley and the first passive pulley, the first active pulley is connected to a first motor, and the first passive pulley is connected to the screw rod.

8. The transfer roller lifting and moving mechanism of a digital printing press according to claim 7, characterized in that: A worm is connected to the center of the first passive pulley, a rotating drum is threadedly connected to the lead screw, and a turbine matched with the worm is arranged on the rotating drum.

9. The transfer roller lifting and moving mechanism of a digital printing press according to any one of claims 1 to 4, characterized in that: The second power mechanism includes a second active pulley and a second passive pulley rotatably connected to the mounting frame, a second belt is connected between the second active pulley and the second passive pulley, the second active pulley is connected to a second motor, and the second passive pulley is connected to the gear.

10. The transfer roller lifting and moving mechanism of a digital printing press according to any one of claims 1 to 4, characterized in that: The mounting frame is provided with guide cylinders on both sides of the screw rod, guide rods are inserted into the guide cylinders, and the upper ends of the guide rods are connected to the bearing seat.

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