A lifting device for chrome plating printing roller

Abstract

This application relates to the field of lifting fixture technology and discloses a lifting fixture for chrome plating of printing rollers, including a first L-shaped hanger and a second L-shaped hanger. A groove is formed at one end of the first L-shaped hanger near the second L-shaped hanger, and an electric telescopic rod is fixedly installed in the groove. The output end of the electric telescopic rod extends out of the groove and is fixedly connected to the end of the second L-shaped hanger near the first L-shaped hanger. U-shaped fixing plates are fixedly installed on the front and rear side walls of both the first and second L-shaped hangers, arranged symmetrically in pairs. Each of the four U-shaped fixing plates is equipped with an anti-drop component. This application has the following advantages and effects: with the combined action of the four anti-drop components, effective limiting and blocking of the printing roller can be achieved, preventing the printing roller from slipping or shifting during lifting and transfer, and ensuring the stability of the printing roller lifting and transfer process.

Description

Technical Field

[0001] This application relates to the field of lifting equipment technology, and in particular to a lifting equipment for chrome plating of printing rollers. Background Technology

[0002] Printing rollers are core components of printing equipment. During the manufacturing process, to improve the wear resistance, corrosion resistance, and surface smoothness of printing rollers, the industry commonly employs chrome plating. During chrome plating, the printing rollers must be lifted and transferred into the plating tank using lifting equipment, and their position and orientation must be controlled to ensure the uniformity and stability of the plating layer. A search revealed a patent document with authorization announcement number CN222729945U, which discloses a lifting device for chrome plating of printing rollers. The device includes a first L-shaped hanger and a second L-shaped hanger, with an adjustment assembly between them. This assembly includes an electric push rod and an extension rod. The electric push rod is installed at the center of the inner wall of the first L-shaped hanger via a pre-drilled hole and bolts. Both the first and second L-shaped hangers have roller supports at their bottoms, with a first and a second support roller connected to their inner walls via rotating shafts. The distance between the first and second L-shaped hangers can be adjusted according to printing rollers of different lengths. During operation, the electric push rod is activated to extend the second L-shaped hanger to the other side, and the extension rod penetrates the inner wall of the second L-shaped hanger to provide auxiliary support. This convenient adjustment significantly improves the adaptability of the lifting device.

[0003] The above solution still has at least the following shortcomings in actual use: When the two ends of the printing roller are placed on the corresponding support roller frame for hoisting and transfer, there is no effective anti-falling mechanism. During hoisting and lifting, the printing roller is prone to slipping and displacement due to factors such as swinging and vibration of the hoisting equipment, which may not only damage the printing roller, but also pose a safety hazard.

[0004] Therefore, we propose a lifting device for chrome plating of printing rollers to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a lifting device for chrome plating of printing rollers, which can effectively limit and block the printing rollers, prevent the printing rollers from slipping or shifting during the lifting and transfer process, and ensure the stability of the lifting and transfer process of the printing rollers.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a hanger for chrome plating of printing rollers, including a first L-shaped hanger and a second L-shaped hanger. The first L-shaped hanger has a groove at one end near the second L-shaped hanger. An electric telescopic rod is fixedly installed in the groove. The output end of the electric telescopic rod extends out of the groove and is fixedly connected to the end of the second L-shaped hanger near the first L-shaped hanger. U-shaped fixing plates are fixedly installed on the front and rear side walls of the first L-shaped hanger and the front and rear side walls of the second L-shaped hanger. The four U-shaped fixing plates are arranged symmetrically in pairs. Each of the four U-shaped fixing plates is provided with an anti-fall-off component. The anti-fall-off component includes a motor, a rotating shaft, a connecting seat, an electric telescopic rod, a connecting plate, and a baffle. The motor is fixedly installed on one outer wall of the U-shaped fixing plate. The output shaft of the motor extends into the U-shaped fixing plate. The rotating shaft is fixedly installed on the output shaft of the motor. The connecting seat is fixedly sleeved on the rotating shaft. The electric telescopic rod is fixedly installed on the top of the connecting seat. The connecting plate is fixedly installed on the output end of the electric telescopic rod. The baffle is fixedly installed on the top of the connecting plate.

[0007] By adopting the above technical solution, the distance between the first L-shaped hanger and the second L-shaped hanger can be flexibly adjusted using the electric telescopic rod one, which can quickly adapt to printing rollers of different lengths for hoisting and transfer, significantly improving the versatility of the equipment. Motor one is used to drive the rotating shaft to rotate, which can flexibly adjust the angle of the baffle. Using the telescopic function of the electric telescopic rod two, the linear movement of the baffle can be controlled, thereby achieving effective lateral limiting and blocking of the printing roller.

[0008] A further feature of this application is that a clearance hole is provided on the side of the U-shaped fixing plate near the motor, and the output shaft end of the motor passes through the clearance hole.

[0009] By adopting the above technical solution, the output shaft of motor one can be ensured to rotate smoothly.

[0010] A further feature of this application is that a bearing seat is fixedly installed on the inner wall of the U-shaped fixing plate away from the motor, and the end of the rotating shaft away from the motor is rotatably connected to the bearing seat.

[0011] By adopting the above technical solution, the stability of the rotating shaft during rotation is ensured.

[0012] A further feature of this application is that a rubber pad is fixedly installed on one side of the baffle.

[0013] By adopting the above technical solution, hard collisions between the baffle and the printing roller are avoided, and friction is increased, which effectively prevents the printing roller from slipping or shifting due to vibration or swaying during hoisting and lifting, thus greatly improving the safety of hoisting operations.

[0014] A further feature of this application is that: two U-shaped guide plates are fixedly installed on the top of the second L-shaped hanger, and two guide beams are fixedly installed on the top of the first L-shaped hanger. One end of each guide beam slides through the corresponding U-shaped guide plate, and the bottom of each guide beam is in contact with the top of the second L-shaped hanger.

[0015] By adopting the above technical solution, a guide support structure can be formed by the sliding cooperation between the guide beam and the U-shaped guide plate. During the adjustment or hoisting of the distance between the first L-shaped hanger and the second L-shaped hanger, the offset of the first L-shaped hanger and the second L-shaped hanger can be limited, ensuring that the first L-shaped hanger and the second L-shaped hanger always remain in a parallel and stable state, reducing shaking or deformation, and providing a stable support and hoisting environment for the printing roller.

[0016] A further feature of this application is that: two U-shaped guide plates are fixedly installed at the bottom of the second L-shaped hanger, and two guide beams are fixedly installed at the bottom of the second L-shaped hanger. One end of each guide beam slides through the corresponding U-shaped guide plate, and the top of each guide beam is in contact with the bottom inner wall of the first L-shaped hanger.

[0017] By adopting the above technical solution, the sliding cooperation between the second guide beam and the second U-shaped guide plate can further form a guide support structure. During the adjustment or hoisting process of the distance between the first L-shaped hanger and the second L-shaped hanger, the offset of the first L-shaped hanger and the second L-shaped hanger can be limited, further ensuring that the first L-shaped hanger and the second L-shaped hanger always maintain a parallel and stable state, and further providing a stable support and hoisting environment for the printing roller.

[0018] A further feature of this application is that the outer surfaces of the first L-shaped hanger, the second L-shaped hanger, the first guide beam, and the second guide beam are all smooth surfaces.

[0019] By adopting the above technical solution, it is ensured that the first guide beam slides smoothly within the first U-shaped guide plate, and the second guide beam slides smoothly within the second U-shaped guide plate.

[0020] A further feature of this application is that the same Y-shaped sling is fixedly installed on the top of the first L-shaped hanger and the second L-shaped hanger.

[0021] By adopting the above technical solution, it is possible to use lifting equipment such as winches to lift or lower the first L-shaped hanger and the second L-shaped hanger.

[0022] A further provision of this application is that: a support roller frame is fixedly installed at the bottom of both the first L-shaped hanger and the bottom of the second L-shaped hanger; two load-bearing rollers are rotatably installed inside the support roller frame; and two motors are fixedly installed on one outer wall of the support roller frame; the output shaft ends of the two motors are respectively fixedly connected to one end of the corresponding load-bearing roller.

[0023] By adopting the above technical solution, two motors can be used to control the rotation of the corresponding carrier rollers respectively. Under the rotation of the two carrier rollers, the angle or position of the printing roller can be easily adjusted during the chrome plating process, which improves the ease of operation and achieves a uniform chrome plating effect.

[0024] A further feature of this application is that a clearance hole 2 is provided on the side of the support roller frame near the motor 2, and the output shaft end of the motor 2 passes through the clearance hole 2.

[0025] By adopting the above technical solution, the output shaft of motor 2 can be ensured to rotate smoothly.

[0026] This application includes at least one of the following beneficial technical effects:

[0027] This application utilizes the combined action of four sets of anti-drop components to effectively limit and block the printing roller, preventing it from slipping or shifting during hoisting and transfer, and ensuring the stability of the printing roller hoisting and transfer process.

[0028] This application utilizes rubber pads, which not only avoids hard collisions between the baffle and the printing roller, but also increases friction, thereby effectively preventing the printing roller from slipping or shifting due to vibration or swaying during hoisting and lifting. This significantly improves the safety of hoisting operations and lays the foundation for subsequent chrome plating of the printing roller.

[0029] This application utilizes the synergistic effect of two U-shaped guide plates, two guide beams, two U-shaped guide plates, and two guide beams to form a double-guided support structure. During the adjustment or lifting of the distance between the first L-shaped hanger and the second L-shaped hanger, the sliding fit between guide beam one and U-shaped guide plate one, and the sliding fit between guide beam two and U-shaped guide plate two, can limit the offset of the first L-shaped hanger and the second L-shaped hanger, ensuring that the first L-shaped hanger and the second L-shaped hanger always remain in a parallel and stable state, reducing shaking or deformation, and providing a stable support and lifting environment for the printing roller. Attached Figure Description

[0030] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment.

[0031] Figure 2 This is a top-view three-dimensional structural diagram of this embodiment.

[0032] Figure 3 This is a bottom-view three-dimensional structural diagram of this embodiment.

[0033] Figure 4 This is a three-dimensional structural diagram of the U-shaped plate and the anti-fall-off component.

[0034] In the diagram: 1. First L-shaped hanger; 2. Second L-shaped hanger; 3. Groove; 4. Electric telescopic rod one; 5. Support roller frame; 6. U-shaped fixing plate; 7. Anti-fall-off component; 71. Motor one; 72. Rotating shaft; 73. Connecting seat; 74. Electric telescopic rod two; 75. Connecting plate; 76. Baffle; 77. Shaft seat; 78. Rubber pad; 8. U-shaped guide plate one; 9. Guide beam one; 10. U-shaped guide plate two; 11. Guide beam two; 12. Y-shaped sling; 13. Loading roller; 14. Motor two. Detailed Implementation

[0035] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] See Figure 1 , Figure 2 , Figure 3 and Figure 4This application provides a lifting device for chrome plating of printing rollers, including a first L-shaped hanger 1 and a second L-shaped hanger 2. A groove 3 is formed at one end of the first L-shaped hanger 1 near the second L-shaped hanger 2. An electric telescopic rod 4 is fixedly installed in the groove 3. The output end of the electric telescopic rod 4 extends outside the groove 3 and is fixedly connected to the end of the second L-shaped hanger 2 near the first L-shaped hanger 1. Utilizing the telescopic function of the electric telescopic rod 4, the distance between the first L-shaped hanger 1 and the second L-shaped hanger 2 can be flexibly adjusted, enabling rapid adaptation to printing rollers of different lengths for lifting and transfer. Frequent changes of the lifting device are unnecessary, significantly improving the equipment's versatility and reducing equipment costs and time losses due to specification differences. U-shaped fixing plates 6 are fixedly installed on both the front and rear side walls of the first L-shaped hanger 1 and the front and rear side walls of the second L-shaped hanger 2. The four U-shaped fixing plates 6 are arranged symmetrically in pairs, and each of the four U-shaped fixing plates 6 is equipped with an anti-fall-off component 7. The anti-drop component 7 includes a motor 71, a rotating shaft 72, a connecting seat 73, an electric telescopic rod 74, a connecting plate 75, and a baffle 76. The motor 71 is fixedly installed on one outer wall of the U-shaped fixed plate 6, and the output shaft of the motor 71 extends into the U-shaped fixed plate 6. The rotating shaft 72 is fixedly installed on the output shaft of the motor 71. The connecting seat 73 is fixedly sleeved on the rotating shaft 72. The electric telescopic rod 74 is fixedly installed on the top of the connecting seat 73. The connecting plate 75 is fixedly installed on the output end of the electric telescopic rod 74. The baffle 76 is fixedly installed on the top of the connecting plate 75. The motor 71 is a reversible motor. The motor 71 drives the rotating shaft 72 to rotate, which in turn allows the baffle 76 to rotate around the rotating shaft 72. This allows for flexible adjustment of the angle of the baffle 76. By utilizing the telescopic function of the electric telescopic rod 74, the linear movement of the baffle 76 can be controlled, thereby achieving effective lateral limiting and blocking of the printing roller.

[0037] In this embodiment, a clearance hole is provided on the side of the U-shaped fixing plate 6 near the motor 71. The output shaft end of the motor 71 passes through the clearance hole to ensure smooth rotation of the output shaft end of the motor 71. A bearing seat 77 is fixedly installed on the inner wall of the side of the U-shaped fixing plate 6 away from the motor 71. The end of the rotating shaft 72 away from the motor 71 is rotatably connected to the bearing seat 77 to ensure the stability of the rotating shaft 72 when it rotates.

[0038] In this embodiment, a rubber pad 78 is fixedly installed on one side of the baffle 76. The design of the rubber pad 78 not only avoids hard collision between the baffle 76 and the printing roller, but also increases the friction, effectively preventing the printing roller from slipping or shifting due to vibration or swing during hoisting and lifting, greatly improving the safety of hoisting operations and laying the foundation for subsequent chrome plating of the printing roller.

[0039] In this embodiment, two U-shaped guide plates 8 are fixedly installed on the top of the second L-shaped hanger 2, and two guide beams 9 are fixedly installed on the top of the first L-shaped hanger 1. One end of each guide beam 9 slides through the corresponding U-shaped guide plate 8, and the bottom of each guide beam 9 is in contact with the top of the second L-shaped hanger 2. Two U-shaped guide plates 10 and two guide beams 11 are fixedly installed on the bottom of the second L-shaped hanger 2, and one end of each guide beam 11 slides through the corresponding U-shaped guide plate 10. The tops of each guide beam 11 are in contact with the inner bottom wall of the first L-shaped hanger 1. The two U-shaped guide plates 8, two guide beams 9, two U-shaped guide plates 10, and two guide beams 11 work together to form a double guide support structure. During the adjustment or lifting of the distance between the first L-shaped hanger 1 and the second L-shaped hanger 2, the sliding fit between the guide beams 9 and the U-shaped guide plates 8, and the sliding fit between the guide beams 11 and the U-shaped guide plates 10, can limit the offset of the first L-shaped hanger 1 and the second L-shaped hanger 2, ensuring that the first L-shaped hanger 1 and the second L-shaped hanger 2 always remain in a parallel and stable state, reducing shaking or deformation, and providing a stable support and lifting environment for the printing roller.

[0040] In this embodiment, the outer surfaces of the first L-shaped hanger 1, the second L-shaped hanger 2, the first guide beam 9, and the second guide beam 11 are all smooth surfaces. When adjusting the distance between the first L-shaped hanger 1 and the second L-shaped hanger 2, it can be ensured that the first guide beam 9 slides smoothly in the first U-shaped guide plate 8, and also ensure that the second guide beam 11 slides smoothly in the second U-shaped guide plate 10.

[0041] In this embodiment, the top of the first L-shaped hanger 1 and the second L-shaped hanger 2 are fixedly installed with the same Y-shaped sling 12, so as to use lifting equipment such as winches to lift or lower the first L-shaped hanger 1 and the second L-shaped hanger 2. The Y-shaped sling 12 can be made of steel wire rope.

[0042] In this embodiment, a support roller frame 5 is fixedly installed at the bottom of the first L-shaped hanger 1 and the bottom of the second L-shaped hanger 2. Two support rollers 13 are rotatably installed inside the support roller frame 5. Two motors 14 are fixedly installed on one side of the outer wall of the support roller frame 5. The output shaft ends of the two motors 14 are respectively fixedly connected to one end of the corresponding support roller 13. The two motors 14 rotate in the same direction. The two motors 14 can control the rotation of the corresponding support roller 13. Under the rotational force of the two support rollers 13, the angle or position of the printing roller can be easily adjusted during the chrome plating process without the need for additional manual rolling, which improves the ease of operation and achieves a uniform chrome plating effect. A clearance hole 2 is opened on the side of the support roller frame 5 near the motor 14. The output shaft end of the motor 14 passes through the clearance hole 2 to ensure that the output shaft of the motor 14 rotates smoothly.

[0043] In this embodiment, it should be noted that the wiring connection method and control method of the electric telescopic pole 1 4, motor 1 71, electric telescopic pole 2 74 and motor 2 14 are mature technologies in the field and are fully disclosed, so they will not be described in detail here.

[0044] With the above structure, the chrome plating hanger for printing rollers provided in this application can adjust the distance between the first L-shaped hanger 1 and the second L-shaped hanger 2 before lifting, according to the length specifications of the printing roller, by controlling the extension or retraction of the electric telescopic rod 4. This allows it to adapt to printing rollers of different lengths for lifting and transfer. During the adjustment of the distance, the guide beam 9 slides within the U-shaped guide plate 8, and the guide beam 11 slides within the U-shaped guide plate 10, thus forming a double guide structure to ensure that the two first L-shaped hangers 1 and the second L-shaped hanger 2 always remain parallel and stable and will not deviate.

[0045] According to the length specifications of the printing roller, after adjusting the distance between the first L-shaped hanger 1 and the second L-shaped hanger 2, when hoisting and transferring the printing roller, firstly, place both ends of the printing roller on the two support rollers 13 on the corresponding support roller frame 5, and then control the operation of four motors 71. The output shaft of motor 71 drives the rotating shaft 72 to rotate. The rotating shaft 72 drives the connecting seat 73, the electric telescopic rod 74, the connecting plate 75 and the baffle 76 to rotate. At this time, the baffle 76 rotates around the rotating shaft 72. When the baffle 76 is rotated to a suitable angle, the operation of motor 71 is stopped. Then, the electric telescopic rod 74 pushes the connecting plate 75 and the baffle 76 to move. When the rubber pad 78 on one side of the baffle 76 contacts the outer wall of the printing roller, the operation of four motors 71 is stopped. Thus, under the synergistic action of the four baffles 76 and the four rubber pads 78, the printing roller can be limited and blocked to prevent the printing roller from slipping and shifting during the hoisting and transfer process, and to ensure the stability of the hoisting and transfer process of the printing roller.

[0046] After the printing roller is stopped and limited, the entire lifting device is connected to the hoist or other lifting equipment via the Y-type sling 12, allowing for the lifting and transfer of the printing roller. When the printing roller is lifted and transferred to the chrome plating bath, by controlling the four motors 71 to run in reverse, the four baffles 76 can be rotated back to their vertically upward position. Furthermore, by controlling the four electric telescopic rods 74 to extend and retract, the four baffles 76 can be returned to their original positions (e.g., ...). Figure 1 (as shown in the image), at this point the obstruction and restriction on the printing roller is released, and then chrome plating can be performed;

[0047] During chrome plating, the rotation of the corresponding carrier roller 13 can be controlled by operating the two motors 14 on the support roller frame 5. Under the rotational force of the two carrier rollers 13, the printing roller can be rotated, thereby facilitating the adjustment of the angle or position of the printing roller to ensure that its surface can be evenly contacted with the plating solution, so as to achieve a uniform chrome plating effect.

Claims

1. A lifting device for chrome plating of printing rollers, characterized in that, The system includes a first L-shaped hanger (1) and a second L-shaped hanger (2). A groove (3) is provided at one end of the first L-shaped hanger (1) near the second L-shaped hanger (2). An electric telescopic rod (4) is fixedly installed in the groove (3). The output end of the electric telescopic rod (4) extends outside the groove (3) and is fixedly connected to the end of the second L-shaped hanger (2) near the first L-shaped hanger (1). U-shaped fixing plates (6) are fixedly installed on the front and rear side walls of the first L-shaped hanger (1) and the front and rear side walls of the second L-shaped hanger (2). The four U-shaped fixing plates (6) are arranged symmetrically in pairs. Each of the four U-shaped fixing plates (6) is equipped with an anti-fall-off component (7). The anti-fall-off component (7) includes an electric... The components include a motor (71), a rotating shaft (72), a connecting seat (73), an electric telescopic rod (74), a connecting plate (75), and a baffle (76). The motor (71) is fixedly installed on one side of the outer wall of the U-shaped fixing plate (6). The output shaft of the motor (71) extends into the U-shaped fixing plate (6). The rotating shaft (72) is fixedly installed on the output shaft of the motor (71). The connecting seat (73) is fixedly sleeved on the rotating shaft (72). The electric telescopic rod (74) is fixedly installed on the top of the connecting seat (73). The connecting plate (75) is fixedly installed on the output end of the electric telescopic rod (74). The baffle (76) is fixedly installed on the top of the connecting plate (75).

2. The lifting fixture for chrome plating of printing rollers according to claim 1, characterized in that: The U-shaped fixing plate (6) has a clearance hole on the side near the motor (71), and the output shaft end of the motor (71) passes through the clearance hole.

3. The lifting fixture for chrome plating of printing rollers according to claim 1, characterized in that: A bearing seat (77) is fixedly installed on the inner wall of the U-shaped fixing plate (6) away from the motor (71), and the end of the rotating shaft (72) away from the motor (71) is rotatably connected to the bearing seat (77).

4. The lifting fixture for chrome plating of printing rollers according to claim 1, characterized in that: A rubber pad (78) is fixedly installed on one side of the baffle (76).

5. The lifting fixture for chrome plating of printing rollers according to claim 1, characterized in that: The top of the second L-shaped hanger (2) is fixedly installed with two U-shaped guide plates (8), and the top of the first L-shaped hanger (1) is fixedly installed with two guide beams (9). One end of each of the two guide beams (9) slides through the corresponding U-shaped guide plate (8), and the bottom of each of the two guide beams (9) is in contact with the top of the second L-shaped hanger (2).

6. The lifting fixture for chrome plating of printing rollers according to claim 5, characterized in that: Two U-shaped guide plates (10) are fixedly installed at the bottom of the second L-shaped hanger (2), and two guide beams (11) are fixedly installed at the bottom of the second L-shaped hanger (2). One end of each of the two guide beams (11) slides through the corresponding U-shaped guide plate (10), and the top of each of the two guide beams (11) is in contact with the bottom inner wall of the first L-shaped hanger (1).

7. The lifting fixture for chrome plating of printing rollers according to claim 6, characterized in that: The outer surfaces of the first L-shaped hanger (1), the second L-shaped hanger (2), guide beam one (9) and guide beam two (11) are all smooth.

8. The lifting fixture for chrome plating of printing rollers according to claim 1, characterized in that: The top of the first L-shaped hanger (1) and the second L-shaped hanger (2) are fixedly installed with the same Y-shaped sling (12).

9. The lifting fixture for chrome plating of printing rollers according to claim 1, characterized in that: The bottom of the first L-shaped hanger (1) and the bottom of the second L-shaped hanger (2) are both fixedly installed with a support roller frame (5). Two load-bearing rollers (13) are rotatably installed inside the support roller frame (5). Two motors (14) are fixedly installed on one side of the outer wall of the support roller frame (5). The output shaft ends of the two motors (14) are respectively fixedly connected to one end of the corresponding load-bearing roller (13).

10. The lifting fixture for chrome plating of printing rollers according to claim 9, characterized in that: The support roller frame (5) has a clearance hole 2 on the side near the motor 2 (14), and the output shaft end of the motor 2 (14) passes through the clearance hole 2.

Images