Quick mounting and demounting mechanism of the impression roller

Abstract

The utility model discloses a kind of quick mounting and dismounting mechanism of impression roller, belong to intaglio printing equipment technical field, to solve the problem of existing impression roller mounting and dismounting process cumbersome, manual strength is big, change production efficiency is low, installation precision is poor.The utility model includes impression roller and both side plates, V-shaped swing seat is rotatably installed on side plate, swing seat swings by air cylinder drive;Swing seat end portion is equipped with mounting disc and supporting plate, mounting disc is equipped with first U-shaped groove and built-in U-shaped side fixed plate, screw cap with inlet, second U-shaped groove is rotatably assembled on mounting disc, screw cap is equipped with locking bolt;Supporting plate is equipped with hanging groove and high-position import step.The utility model is through rolling import, screw cap quick locking structure, without manual high-strength lifting and multi-bolt dismounting, can realize impression roller quick mounting and dismounting, cooperate multi-dimension limiting structure to guarantee installation precision, adapt to small-batch high-frequency change production scene, greatly improve production efficiency and equipment running stability, and practicality is strong.

Description

Technical Field

[0001] This utility model belongs to the technical field of gravure printing equipment, specifically relating to a quick loading and unloading mechanism for the impression roller of a gravure printing machine. Background Technology

[0002] When changing printing patterns on a gravure printing machine, it is necessary to simultaneously replace the printing roller with one of the appropriate specifications. After the printing roller is replaced, the outer diameter parameters change. In order to match the printing plate width, ensure printing elasticity, pressure accuracy, and the cleanliness and anti-contamination effect of the equipment, it is necessary to replace the printing roller with one of the corresponding specifications.

[0003] The printing industry is currently experiencing a surge in demand for small-batch, multi-batch, and customized production, leading to a significant increase in the frequency of impression roller replacement. Existing impression roller assembly and disassembly structures are mostly fixed bolt-locked, split-support structures. During assembly and disassembly, manual lifting of the impression roller, disassembly and reassembly of multiple sets of locking bolts, and alignment and calibration of the installation position are required. The entire operation relies heavily on manual labor, resulting in cumbersome assembly and disassembly procedures, high time consumption, poor alignment accuracy, and low operational efficiency.

[0004] Meanwhile, traditional loading and unloading structures lack dedicated guide, limit, and support structures, which can easily lead to problems such as imprint roller misalignment, collision, and alignment deviation during disassembly and assembly. This not only affects the installation accuracy of the imprint roller and causes wear and tear on equipment parts, but also seriously delays the production schedule. It cannot meet the current high-frequency and high-efficiency production changeover requirements, thus restricting the production efficiency and adaptability of gravure printing equipment. Utility Model Content

[0005] This utility model aims to solve the technical problems of existing gravure printing presses, such as cumbersome loading and unloading structure of impression rollers, high manual labor intensity, long loading and unloading time, low production efficiency, lack of dedicated guide and limit structure, poor installation accuracy, and inability to adapt to the needs of small-batch, high-frequency changeover.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick loading and unloading mechanism for an impression roller, comprising an impression roller and two symmetrically arranged side plates. Each side plate is equipped with a swing seat corresponding to the end of the impression roller, and bearings are mounted on the end shafts of both ends of the impression roller. The swing seat has a V-shaped structure, and its center is rotatably mounted on the side plate via a rotating shaft. Each side plate is equipped with a cylinder matching the corresponding swing seat, and the piston rod end of the cylinder is axially connected to one end of the swing seat for transmission. A transmission roller assembly is assembled between one end of the two swing seats, and a mounting plate and a support plate are fixedly connected to the other end of the swing seat. The mounting plate has a first U-shaped opening on its end face facing the bearing. The first U-shaped groove has a width adapted to the outer diameter of the bearing. A cap is rotatably mounted on the mounting plate. The end face of the cap has a second U-shaped groove for the shaft of the impression roller to be guided in. The side wall of the cap has an inlet with the same width as the opening of the first U-shaped groove and communicating with the second U-shaped groove. The cap is equipped with locking bolts for locking and fixing. A U-shaped side plate is fixedly provided at the bottom of the first U-shaped groove. The U-shaped side plate and the inner bottom surface of the cap form a side limiting structure adapted to the width of the bearing. The end of the support plate has a hanging groove for hanging the impression roller. The support plate has an inlet step parallel to the lower side wall of the first U-shaped groove. The height of the inlet step is higher than the height of the lower side wall of the first U-shaped groove.

[0007] Furthermore, the swing seat achieves adaptive oscillation of angle through a rotating shaft, and the extension and retraction of the cylinder piston rod drives the swing seat to rotate around the rotating shaft to adjust the installation height and horizontal alignment accuracy of the impression roller.

[0008] Furthermore, the inner spacing of the U-shaped side plate is adapted to the outer diameter gap of the imprint roller end shaft, thereby achieving axial positioning of the imprint roller end shaft.

[0009] Furthermore, the guide step is a sloped transition structure, and the guide step is smoothly connected to the hanging groove, which is suitable for the rolling sliding loading and unloading of the impression roller.

[0010] Furthermore, the rotating cap switches the alignment and misalignment states of the inlet and the opening of the first U-shaped groove. In the misalignment state, the inner wall of the cap blocks the opening of the first U-shaped groove, thereby achieving the closed and limited positioning of the bearing.

[0011] Furthermore, the locking bolt passes through the cap and is threaded onto the mounting plate, limiting the cap's rotational freedom.

[0012] Beneficial technical effects of this utility model 1. This utility model adopts an integrated loading and unloading structure with a tray guide step and a hanging groove combined with a screw cap for quick locking. It eliminates the tedious process of disassembling and assembling multiple bolts one by one and manually lifting and aligning them. It eliminates the need for high-intensity manual labor, greatly simplifies the disassembly and assembly process of the impression roller, shortens loading and unloading time, adapts to the needs of small-batch, high-frequency production changeover operations, and significantly improves production efficiency.

[0013] 2. The first U-shaped groove, the second U-shaped groove, and the U-shaped side plate form a multi-dimensional limiting structure, which can simultaneously limit the radial and axial movement of the bearing and shaft at the end of the impression roller. Combined with the cylinder-driven swing seat angle adjustment, it effectively ensures the installation and alignment accuracy of the impression roller, ensures the printing pressure and elasticity accuracy, and improves the quality of printed products.

[0014] 3. The inclined structure with smooth connection between the steps and the hanging groove enables the rolling sliding loading and unloading of the impression roller. The disassembly and assembly process is stable, avoiding bumps and displacement of the impression roller, reducing wear on equipment parts, extending the service life of the equipment, and further reducing the difficulty of operation.

[0015] 4. The cap can be rotated to switch between open and closed states, and can be quickly locked and unlocked with the locking bolt. The structure is simple, the operation is convenient, and the limit stability is strong. It can effectively prevent the impression roller from loosening or shifting during the operation of the equipment, and ensure the stability of the equipment operation.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of a specific embodiment of the present utility model; Figure 2 This is a perspective view of a partial structure in a specific embodiment of the present utility model; Figure 3 This is a perspective view of the screw cap in a specific embodiment of the present utility model; Figure 4 This is a perspective view of the mounting plate in a specific embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Impression roller; 2. Side plate; 3. Swing seat; 4. Bearing; 5. Cylinder; 6. Conduction roller assembly; 7. Mounting plate; 8. Support plate; 9. First U-shaped groove; 10. Cap; 11. Second U-shaped groove; 12. Inlet; 13. End shaft; 14. U-shaped side plate; 15. Hanging groove; 16. Inlet step. Detailed Implementation

[0019] The present invention will be described in detail below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] like Figure 1 , Figure 2As shown, this embodiment discloses a quick loading and unloading mechanism for an impression roller, including an impression roller 1 and two symmetrically arranged side plates 2. The side plates 2 are the main support structure of the equipment, used to support various transmission and limiting components. Each side plate 2 is equipped with a swing seat 3 matching the end of the impression roller 1. Bearings 4 are fixedly mounted on the end shafts 13 at both ends of the impression roller 1 to reduce the rotational friction of the impression roller 1, and at the same time, to achieve precise positioning in conjunction with the limiting structure.

[0021] The swing seat 3 adopts a V-shaped structure design. The middle part of the swing seat 3 is rotatably mounted on the corresponding side plate 2 via a rotating shaft, allowing the swing seat 3 to self-adjust around the rotating shaft. Cylinders 5, matching the corresponding swing seats 3, are fixedly installed on both side plates 2. The piston rod end of the cylinder 5 is connected to one end of the swing seat 3 via a pin shaft. Through the extension and retraction of the piston rod of the cylinder 5, the swing seat 3 can be driven to rotate precisely around the rotating shaft, thereby adjusting the installation height and horizontal alignment accuracy of the impression roller 1, adapting to the installation requirements of impression rollers of different specifications.

[0022] A guide roller assembly 6 is installed between the upper ends of the two swing seats 3 to cooperate with the impression roller 1 to complete the transmission of printing materials. The lower end of the swing seat 3 is fixedly connected to the mounting plate 7 and the support plate 8. The mounting plate 7 and the support plate 8 are fixed together and adjust their positions synchronously with the swing seat 3.

[0023] Specifically, such as Figure 4 As shown, the mounting plate 7 has a first U-shaped groove 9 on its end face facing the bearing 4. The width of the first U-shaped groove 9 is precisely matched with the outer diameter of the bearing 4, which can radially limit the bearing 4. A circular cap 10 is rotatably mounted on the mounting plate 7, as shown in the figure. Figure 3 As shown, the cap 10 can rotate freely around the center of the mounting plate 7 and cover the mounting plate 7. A second U-shaped groove 11 is provided at the center of the end face of the cap 10. The second U-shaped groove 11 is used to guide and position the end shaft 13 of the impression roller 1. An inlet 12 is provided on the side wall of the cap 10. The inlet 12 has the same opening width as the first U-shaped groove 9, and the inlet 12 is connected to the second U-shaped groove 11 to ensure that the bearing 4 and the end shaft can be smoothly guided into the limiting structure.

[0024] A locking bolt is vertically mounted on the cap 10. The locking bolt passes through the cap 10 and is threadedly connected to the mounting plate 7. By tightening and loosening the locking bolt, the cap 10 can be locked and fixed and can rotate freely, thus limiting the rotational freedom of the cap 10 and ensuring the stability of the limiting structure.

[0025] The bottom of the first U-shaped groove 9 is fixedly welded with a U-shaped side plate 14. The inner spacing of the U-shaped side plate 14 is adapted to the outer diameter gap of the end shaft of the impression roller 1. The U-shaped side plate 14 and the inner bottom surface of the cap 10 cooperate with each other to form a side limiting structure adapted to the width of the bearing 4. This can axially limit the end face of the bearing 4 and the end shaft of the impression roller 1, and completely prevent the axial displacement of the impression roller 1 during operation.

[0026] The end of the tray 8 is provided with a hanging groove 15, which is an arc-shaped groove structure that can stably hang and support the impression roller 1, and realize temporary positioning support during the assembly and disassembly process. The tray 8 has an integrally formed guide step 16, which is set parallel to the lower side wall of the first U-shaped groove 9, and the height of the guide step 16 is higher than the height of the lower side wall of the first U-shaped groove 9. At the same time, the guide step 16 adopts a slope transition structure and smoothly connects with the hanging groove 15, which facilitates the smooth rolling and sliding of the impression roller 1 along the slope to complete the introduction and disassembly operations.

[0027] The specific loading and unloading operation procedure of this utility model is as follows: When installing the impression roller, first loosen the locking bolts and rotate the cap 10 so that the inlet 12 on the side wall of the cap 10 is fully aligned with the opening of the first U-shaped groove 9 on the mounting plate 7. Place both ends of the impression roller 1 on the hanging grooves 15 of the two side support plates 8 to achieve temporary support and positioning. The cylinder 5 drives the mounting plate end of the swing seat to swing upward, so that the inlet step 16 is inclined towards the entrance of the first U-shaped groove 9. In this way, the impression roller 1 rolls from the hanging groove 15 into the inlet step 16 and rolls inward. The bearing 4 on the end shaft of the impression roller 1 passes through the inlet 12 and rolls into the first U-shaped groove 9. At this time, the end of the end shaft of the impression roller 1 is embedded in the inside of the U-shaped side plate 14, and the end shaft body is stuck into the second U-shaped groove 11, completing the initial alignment. Then rotate the cap 10 to misalign the inlet 12 with the opening of the first U-shaped groove 9. The opening of the first U-shaped groove 9 is blocked by the inner wall of the cap 10, thus sealing and limiting the bearing 4. Finally, tighten the locking bolt to lock the position of the cap 10, thereby completing the quick installation and fixing of the impression roller 1.

[0028] When disassembling the impression roller, simply loosen the locking bolt, rotate the cap 10 to realign the inlet 12 with the opening of the first U-shaped groove 9, pull the impression roller 1 outward to move the bearing 4 out of the first U-shaped groove 9 and the inlet 12, and the impression roller 1 slides back down along the inlet step 16 onto the hanging groove 15, and the impression roller 1 can be directly removed to complete the quick disassembly operation.

[0029] During equipment operation, the cylinder 5 can drive the swing seat 3 to finely adjust the angle in real time, precisely adjusting the pressure and alignment accuracy between the impression roller 1 and the printing roller, ensuring the stability and accuracy of the printing operation.

Claims

1. A quick loading and unloading mechanism for an impression roller, comprising an impression roller (1) and two symmetrically arranged side plates (2), wherein each of the two side plates (2) is equipped with a swing seat (3) corresponding to the end of the impression roller (1), characterized in that, The two ends of the impression roller (1) are equipped with bearings (4); the swing seat (3) has a V-shaped structure, and the middle part of the swing seat (3) is rotatably mounted on the side plate (2) through a rotating shaft. The two side plates (2) are equipped with cylinders (5) that match the corresponding swing seats (3). The piston rod end of the cylinder (5) is axially connected to one end of the swing seat (3) for transmission; a guide roller group (6) is assembled between one end of the two swing seats (3), and the other end of the swing seat (3) is fixedly connected to the mounting plate (7) and the support plate (8); the mounting plate (7) has a first U-shaped groove (9) on the end face facing the bearing (4). The width of the first U-shaped groove (9) is adapted to the outer diameter of the bearing (4). A screw cap (10) is rotatably mounted on the mounting plate (7). The end face is provided with a second U-shaped groove (11) for the end shaft of the impression roller (1) to be guided. The side wall of the cap (10) is provided with an inlet (12) that is the same width as the opening of the first U-shaped groove (9) and communicates with the second U-shaped groove (11). The cap (10) is equipped with a locking bolt for locking and fixing. The bottom of the first U-shaped groove (9) is fixed with a U-shaped side plate (14). The U-shaped side plate (14) and the inner bottom surface of the cap (10) form a side limiting structure that is adapted to the width of the bearing (4). The end of the support plate (8) is provided with a hanging groove (15) for hanging the impression roller (1). The support plate (8) is provided with an inlet step (16) that is parallel to the lower side wall of the first U-shaped groove (9). The height of the inlet step (16) is higher than the height of the lower side wall of the first U-shaped groove (9).

2. The quick loading and unloading mechanism for the impression roller according to claim 1, characterized in that, The swing seat (3) achieves adaptive oscillation of angle through the rotating shaft. The piston rod of the cylinder (5) extends and retracts to drive the swing seat (3) to rotate around the rotating shaft, so as to adjust the installation height and horizontal alignment accuracy of the impression roller (1).

3. The quick loading and unloading mechanism for the impression roller according to claim 1, characterized in that, The inner spacing of the U-shaped side plate (14) is adapted to the outer diameter gap of the end shaft of the impression roller (1), thereby achieving axial positioning of the end shaft of the impression roller (1).

4. The quick loading and unloading mechanism for the impression roller according to claim 1, characterized in that, The inlet step (16) is a sloped transition structure, and the inlet step (16) is smoothly connected to the hanging groove (15), which is suitable for the rolling sliding loading and unloading of the impression roller (1).

5. The quick loading and unloading mechanism for the impression roller according to claim 1, characterized in that, The rotating cap (10) switches the alignment and misalignment states of the inlet (12) and the opening of the first U-shaped groove (9). In the misalignment state, the inner wall of the cap (10) blocks the opening of the first U-shaped groove (9), thereby achieving the closed and limited position of the bearing (4).

6. The quick loading and unloading mechanism for the impression roller according to claim 1, characterized in that, The locking bolt passes through the cap (10) and is threadedly locked to the mounting plate (7), limiting the rotational freedom of the cap (10).

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