Printing roller convenient to replace

Abstract

The utility model relates to the technical field of printing equipment, and discloses a convenient-to-replace printing roller which comprises a base, two supporting frames are fixedly connected to the upper surface of the base, fixing grooves are formed in one sides of the two supporting frames, and fixing blocks are movably arranged in the two fixing grooves. A printing roller body is rotationally arranged on the two fixing blocks together, fixing holes are formed in the upper surfaces of the fixing blocks, screw rods are arranged on the supporting frames in a threaded mode, the bottom ends of the screw rods can stretch into the fixing holes, the side walls of the screw rods are sleeved with worm wheels, and sliding grooves are formed in the opposite sides of the two supporting frames. According to the printing roller convenient to replace, a user can conveniently and rapidly replace the printing roller body through rotation of the connecting shaft and mutual cooperation between the screw rods and the fixing holes, meanwhile, the overall structure is relatively simple, use is very convenient, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of printing equipment, and in particular to a printing roller that is easy to replace. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding. Its working principle is: first, the text and image to be printed are made into a printing plate, which is then installed on the printing press. Then, the ink is applied to the places with text and images on the printing plate by humans or the printing press, and then directly or indirectly transferred to paper or other substrates, thereby replicating the same printed product as the printing plate. The printing roller is an important component in the printing press, which is responsible for transferring ink or coating to the surface of the printing plate.

[0003] After long-term use, the current printing roller will inevitably be damaged, so maintenance personnel need to repair and replace it. However, most of the existing printing rollers are installed on the printing machine through multiple fixing bolts. Therefore, when disassembling and replacing the printing roller, the maintenance personnel need to use external tools to loosen each bolt one by one. The operation process is relatively cumbersome and will also waste a lot of time, which is inconvenient for the staff to use.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that most of the existing printing rollers are installed on the printing machine by multiple fixing bolts, so when the printing roller is disassembled and replaced, the maintenance personnel need to use external tools to loosen each bolt one by one, and the operation process is relatively cumbersome, the present application provides a printing roller that is easy to replace.

[0006] The present application provides a printing roller that is easy to replace, which adopts the following technical solution:

[0007] The cam is provided with a plurality of support members, each of which is provided with a plurality of worm gears, and the plurality of worm gears are provided with a plurality of worm gears, each of which is provided with a plurality of worm gears.

[0008] Preferably, the driving mechanism includes a motor, a first gear and a second gear, the motor is fixedly connected to one side of one of the support frames via a connecting frame, the second gear is fixedly connected to the output end of the motor, one end of the printing roller body passes through one of the fixed blocks and is fixedly connected to the first gear, and when the first gear moves toward the direction of the second gear, the first gear engages with the second gear.

[0009] Preferably, a guide groove is formed on the bottom wall of the fixing groove, a guide plate is fixedly connected to the lower surface of the fixing block, and the guide plate is slidably disposed in the guide groove.

[0010] Preferably, a handle is fixedly connected to one side of the fixing block.

[0011] Preferably, one end of the connecting shaft passes through one of the fixing frames and is fixedly connected to a knob.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The worm can be driven to rotate by rotating the connecting shaft, and the worm can drive the screw to rotate through the worm gear. After the screw is rotated, it can move upward so that its bottom end is out of the fixing hole, and the printing roller body can be removed. Then, the printing roller body can be replaced, and the fixing block can be inserted into the fixing groove. The screw can be driven to move downward by rotating the connecting shaft in the opposite direction so that its bottom end can be inserted into the fixing hole. Compared with the prior art, the printing roller body can be replaced quickly by the user through the mutual cooperation between the rotating connecting shaft and the screw and the fixing hole. At the same time, the overall structure is relatively simple, and it is very convenient to use, which improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1is a schematic diagram of a three-dimensional structure of an embodiment of the application;

[0015] Figure 2 is a schematic diagram of the three-dimensional structure when replacing the printing roller body according to an embodiment of the application;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the worm and worm wheel of the embodiment of the application.

[0017] Explanation of the accompanying drawings: 1. base; 2. support frame; 3. handle; 4. fixing frame; 5. connecting ring; 6. worm gear; 7. connecting shaft; 8. printing roller body; 9. connecting rod; 10. worm; 11. first gear; 12. motor; 13. connecting frame; 14. second gear; 15. fixing block; 16. fixing groove; 17. guide groove; 18. guide plate; 19. slider; 20. knob; 21. screw. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 This application is described in further detail.

[0019] The present application embodiment discloses a printing roller that is easy to replace. Figure 1-3A printing roller that is easy to replace, comprising a base 1, two support frames 2 are fixedly connected to the upper surface of the base 1, one side of the two support frames 2 is provided with a fixing groove 16, the two fixing grooves 16 are movably provided with a fixing block 15, the two fixing blocks 15 are provided with a printing roller body 8 that rotates together, the upper surface of the fixing block 15 is provided with a fixing hole, a screw rod 21 is threadedly provided on the support frame 2, the bottom end of the screw rod 21 can extend into the fixing hole, a worm gear 6 is sleeved on the side wall of the screw rod 21, and the two support frames 2 are provided with a fixing groove 16 on the opposite side. A slide groove is provided, in which a slider 19 is slidably installed, a fixed frame 4 is fixedly connected to one side of the slider 19, a connecting shaft 7 is rotatably installed between the two fixed frames 4, two worms 10 are sleeved on the connecting shaft 7, the worms 10 are meshed with the worm wheel 6, a connecting ring 5 is rotatably provided on the side wall of the screw 21, and the connecting ring 5 is fixedly connected to the fixed frame 4 through a connecting rod 9, one of the support frames 2 is connected to the printing roller body 8 through a driving mechanism; when in use, the printing roller body 8 can be driven to rotate by the driving mechanism to print When the printing roller body 8 needs to be replaced, the worm 10 can be driven to rotate by rotating the connecting shaft 7, and the worm 10 can drive the screw 21 to rotate through the worm wheel 6. After the screw 21 rotates, it can move upward so that its bottom end is out of the fixing hole, and the fixing block 15 can be taken out from the fixing groove 16, and the printing roller body 8 can also be removed at the same time. Then the printing roller body 8 is replaced, and the fixing block 15 is inserted into the fixing groove 16. The screw 21 can be driven to move downward by rotating the connecting shaft 7 in the opposite direction, so that its bottom end extends into the fixing hole. Since the worm wheel 6 and the worm 10 have self-locking properties, the stability of the overall device can be guaranteed, and the connecting ring 5 and the connecting rod 9 can ensure that the worm wheel 6 and the worm 10 can move vertically at the same time with the screw 21. In this process, by rotating the connecting shaft 7 and by the mutual cooperation between the screw 21 and the fixing hole, it is convenient for the user to quickly replace the printing roller body 8. At the same time, the overall structure is relatively simple, and it is also very convenient to use, which improves the practicality of the device.

[0020] Reference Figure 1 and Figure 2The driving mechanism includes a motor 12, a first gear 11 and a second gear 14. The motor 12 is fixedly connected to one side of one of the support frames 2 through a connecting frame 13. The second gear 14 is fixedly connected to the output end of the motor 12. One end of the printing roller body 8 passes through one of the fixing blocks 15 and is fixedly connected to the first gear 11. When the first gear 11 moves toward the direction of the second gear 14, the first gear 11 is meshed with the second gear 14. The model of the motor 12 can be selected as YE2-6344-37KW; the second gear 14 can be driven to rotate by starting the motor 12, and the second gear 14 can drive the printing roller body 8 to rotate through the first gear 11, and when the first gear 11 moves toward the direction of the second gear 14, the user can manually rotate the first gear 11 to make it mesh with the second gear 14.

[0021] Reference Figure 2 A guide groove 17 is provided on the bottom wall of the fixing groove 16, and a guide plate 18 is fixedly connected to the lower surface of the fixing block 15, and the guide plate 18 is slidably arranged in the guide groove 17; by sliding the guide plate 18 in the guide groove 17, not only the fixing block 15 can be guided, but also the fixing block 15 can be limited.

[0022] Reference Figure 1 and Figure 2 A handle 3 is fixedly connected to one side of the fixed block 15 ; the handle 3 facilitates the user to move the printing roller body 8 .

[0023] Reference Figure 3 One end of the connecting shaft 7 passes through one of the fixing frames 4 and is fixedly connected to a knob 20 ; the knob 20 is used to facilitate the user to rotate the connecting shaft 7 .

[0024] The implementation principle of a printing roller that is easy to replace in the embodiment of the present application is as follows: the electrical components appearing in the present application are all externally connected to a power supply and a control switch when in use. When in use, the printing roller body 8 can be driven to rotate by a driving mechanism to perform printing work. When the printing roller body 8 needs to be replaced, the worm 10 can be driven to rotate by rotating the connecting shaft 7. The worm 10 can drive the screw 21 to rotate through the worm gear 6. After the screw 21 rotates, it can move upward so that its bottom end is out of the fixing hole, and the fixing block 15 can be taken out of the fixing groove 16. At the same time, the printing roller body 8 can also be removed. Then, the printing roller body 8 is replaced and the fixing block 15 is removed. Insert it into the fixing groove 16, and the screw 21 can be driven to move downward by rotating the connecting shaft 7 in the opposite direction so that its bottom end can be inserted into the fixing hole. Since the worm wheel 6 and the worm 10 are self-locking, the stability of the overall device can be ensured, and the connecting ring 5 and the connecting rod 9 can ensure that the worm wheel 6 and the worm 10 can move vertically at the same time following the screw 21. In this process, by rotating the connecting shaft 7 and through the mutual cooperation between the screw 21 and the fixing hole, the user can quickly replace the printing roller body 8. At the same time, the overall structure is relatively simple and very convenient to use, which improves the practicality of the device.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A printing roller that is easy to replace, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to two support frames (2), one side of each of the two support frames (2) is provided with a fixing groove (16), each of the two fixing grooves (16) is provided with a fixing block (15) movably arranged, a printing roller body (8) is provided on the two fixing blocks (15) for co-rotation, a fixing hole is provided on the upper surface of the fixing block (15), a screw rod (21) is threadedly arranged on the support frame (2), the bottom end of the screw rod (21) can extend into the fixing hole, a worm gear (6) is sleeved on the side wall of the screw rod (21), and the two support frames (2) are opposite to each other. A slide groove is provided on each side, a slider (19) is slidably installed in the slide groove, a fixed frame (4) is fixedly connected to one side of the slider (19), a connecting shaft (7) is rotatably installed between the two fixed frames (4), two worms (10) are sleeved on the connecting shaft (7), the worms (10) are meshed with the worm wheel (6), a connecting ring (5) is rotatably provided on the side wall of the screw (21), the connecting ring (5) is fixedly connected to the fixed frame (4) through a connecting rod (9), and one of the support frames (2) is transmission-connected to the printing roller body (8) through a driving mechanism.

2. The easily replaceable printing roller according to claim 1, characterized in that: The driving mechanism comprises a motor (12), a first gear (11) and a second gear (14); the motor (12) is fixedly connected to one side of one of the support frames (2) via a connecting frame (13); the second gear (14) is fixedly connected to the output end of the motor (12); one end of the printing roller body (8) passes through one of the fixing blocks (15) and is fixedly connected to the first gear (11); when the first gear (11) moves toward the second gear (14), the first gear (11) meshes with the second gear (14).

3. The easily replaceable printing roller according to claim 1, characterized in that: The bottom wall of the fixing groove (16) is provided with a guide groove (17), the lower surface of the fixing block (15) is fixedly connected with a guide plate (18), and the guide plate (18) is slidably arranged in the guide groove (17).

4. The easily replaceable printing roller according to claim 3, characterized in that: A handle (3) is fixedly connected to one side of the fixing block (15).

5. The easily replaceable printing roller according to claim 1, characterized in that: One end of the connecting shaft (7) passes through one of the fixing frames (4) and is fixedly connected to a knob (20).

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