A squeezing roller replacement device

Abstract

This utility model relates to the field of mechanical engineering technology, specifically disclosing a squeezing roller replacement device, including a base, which is a rectangular plate structure with multiple casters installed at the bottom; a lifting plate is located directly above the base, and slide rails parallel to the width direction of the lifting plate are fixedly connected to the left and right sides of the upper end face of the lifting plate. Two sliders are slidably connected to the upper end faces of the two slide rails, and guide rails are fixedly connected to the upper end faces of the two sliders located on the same side in the front-back direction. Through stable mechanical lifting and precise guiding structure, the operation safety and reliability are improved, effectively avoiding the risk of heavy objects falling. The guide rail design with adjustable spacing enhances the versatility of the device, which can be adapted to various specifications of rollers, reducing equipment investment and management costs. The entire operation process is simple and labor-saving, reducing reliance on large lifting equipment and professional operators, and significantly improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and specifically discloses a squeeze roller replacement device. Background Technology

[0002] In continuous production lines in industries such as metallurgy, papermaking, and textiles, squeeze rollers are critical functional components, and their regular replacement and maintenance are essential for ensuring production continuity and product quality. Currently, replacing these heavy-duty rollers typically involves a combination of overhead crane lifting and manual assistance, or the use of simple hydraulic trolleys and fixed supports. These methods and technologies are widely used in the industry and form the basis of existing squeeze roller replacement technology.

[0003] The existing replacement methods still have many shortcomings. First, the operation process is cumbersome, highly dependent on the skills and experience of the operators, and poses significant safety hazards. Second, they have poor versatility; specific devices often only fit a single specification of squeeze roller, requiring various specialized tools to meet diverse and multi-specification production needs, increasing equipment costs and management complexity. Finally, the stability and precision of existing devices are often insufficient, and jamming or misalignment can easily occur during the connection of the squeezer guide rail and pull-out roller components, resulting in low efficiency and potential damage to the expensive squeeze roller and the equipment itself. Utility Model Content

[0004] This utility model proposes a squeezing roller replacement device, which improves operational safety and reliability through stable mechanical lifting and precise guiding structure, effectively avoiding the risk of heavy objects falling, and the guide rail design with flexible adjustable spacing enhances the versatility of the device, making it compatible with various specifications of rollers.

[0005] This utility model is implemented as follows: a squeeze roller changing device, comprising:

[0006] The base is a rectangular plate structure with multiple casters mounted on its bottom;

[0007] The lifting plate is located directly above the base. The upper end face of the lifting plate is fixedly connected to the left and right sides of the upper end face with slide rails parallel to the width direction of the lifting plate. The upper end face of the two slide rails is slidably connected to two sliders. The upper end face of the two sliders located on the same side in the front-back direction is fixedly connected to guide rails. The two guide rails are parallel to the length direction of the lifting plate.

[0008] The lifting mechanism includes a cross-hinged rod installed between a base and a lifting plate. The upper and lower ends of the right side of the cross-hinged rod are fixedly connected to the base and the lifting plate respectively via hinge seats. Two guide grooves distributed front and back are fixedly connected to the left side of the upper end face of the base. A slide plate is slidably connected between the two guide grooves. A nut seat is fixedly connected to the upper end face of the slide plate. A guide rail is fixedly connected to the left side of the lower end face of the lifting plate. A guide rail seat is slidably connected to the lower end face of the guide rail. The upper and lower ends of the left side of the cross-hinged rod are fixedly connected to the guide rail seat and the nut seat respectively via hinge seats.

[0009] As a preferred embodiment of the extrusion roller replacement device of this utility model, the lifting mechanism further includes a bearing seat and a bearing plate fixedly connected to the upper end face of the base, a lead screw rotatably connected between the bearing seat and the bearing plate, and a nut seat threadedly connected to the outer wall of the lead screw.

[0010] As a preferred embodiment of the extrusion roller replacement device of this utility model, guide rods are fixedly connected to the four corners of the upper end face of the base, and the lifting plate is slidably connected to the outer wall of the four guide rods.

[0011] As a preferred embodiment of the extrusion roller replacement device of this utility model, an extension plate is fixedly connected to the right side wall of the base, and a tool box is provided on the upper end surface of the extension plate.

[0012] As a preferred embodiment of the extrusion roller replacement device of this utility model, a scale line is provided on the left side of the upper end face of the lifting plate.

[0013] As a preferred embodiment of the extrusion roller replacement device of this utility model, the end of the lead screw away from the shaft plate passes through the shaft seat and is fixedly connected to a handwheel.

[0014] As a preferred embodiment of the extrusion roller replacement device of this utility model, the outer wall of the slider is threadedly connected with a fixing bolt, and the end of the fixing bolt abuts against the outer wall of the slide rail.

[0015] The beneficial effects of this utility model are:

[0016] This device significantly improves the overall performance of the squeeze roller replacement operation. Through stable mechanical lifting and precise guiding structure, it enhances operational safety and reliability, effectively avoiding the risk of heavy objects falling. The guide rail design with flexible adjustable spacing enhances the device's versatility, adapting to various specifications of rollers, reducing equipment investment and management costs. The entire operation process is simple and labor-saving, reducing reliance on large lifting equipment and professional operators, and significantly improving work efficiency. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is the overall main view of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the present utility model;

[0020] Figure 3 This is a top view of the lifting plate structure of this utility model.

[0021] The markings in the diagram are: 1. Base; 2. Lifting plate; 3. Slide rail; 4. Slider; 5. Guide rail; 6. Cross hinge rod; 7. Guide groove; 8. Slide plate; 9. Nut seat; 10. Guide slide bar; 11. Guide slide block; 12. Shaft seat; 13. Shaft plate; 14. Lead screw; 15. Handwheel; 16. Guide rod; 17. Extension plate; 18. Tool box; 19. Scale line; 20. Universal wheel. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0023] Please see Figure 1-3 A squeeze roller changing device, comprising:

[0024] Base 1, which is a rectangular plate structure and has multiple casters 20 installed at the bottom;

[0025] The lifting plate 2 is located directly above the base 1. The upper end face of the lifting plate 2 is fixedly connected to the left and right sides of the slide rail 3, which is parallel to the width direction of the lifting plate 2. The upper end face of the two slide rails 3 is slidably connected to two sliders 4. The upper end face of the two sliders 4 located on the same side in the front-back direction is fixedly connected to the guide rail 5. The two guide rails 5 are parallel to the length direction of the lifting plate 2.

[0026] The lifting mechanism includes a cross hinge rod 6 installed between the base 1 and the lifting plate 2. The upper and lower ends of the right side of the cross hinge rod 6 are fixedly connected to the base 1 and the lifting plate 2 respectively through hinge seats. Two guide slides 7 distributed front and back are fixedly connected to the left side of the upper end face of the base 1. A slide plate 8 is slidably connected between the two guide slides 7. A nut seat 9 is fixedly connected to the upper end face of the slide plate 8. A guide slide 10 is fixedly connected to the left side of the lower end face of the lifting plate 2. A guide slide 11 is slidably connected to the lower end face of the guide slide 10. The upper and lower ends of the left side of the cross hinge rod 6 are fixedly connected to the guide slide 11 and the nut seat 9 respectively through hinge seats.

[0027] In this embodiment, the operator can easily push the base 1 equipped with casters 20 to the working position, and drive the lead screw 14 to rotate by turning the handwheel 15, forcing the nut seat 9 with its threaded engagement to move horizontally. Then, through the telescopic movement of the cross hinge rod 6, the horizontal displacement is converted into the stable and reliable vertical lifting of the lifting plate 2, thereby precisely adjusting the height of its upper guide rail 5 to be flush with the extruder guide rail. In addition, by loosening the fixing bolts, the slider 4 can be easily slid to adjust the distance between the two guide rails 5, so that it can perfectly adapt to the extruder roller journals of different specifications. After adjustment, tightening the fixing bolts can ensure the rigidity during operation. Finally, the scale line 19 can be used for quick coarse positioning. The entire operation process does not rely on frequent hoisting by the overhead crane and high-intensity manual intervention, which greatly improves the safety, versatility and ease of operation of the replacement operation.

[0028] As a technical optimization of this utility model, the lifting mechanism also includes a bearing seat 12 and a bearing plate 13 fixedly connected to the upper end face of the base 1. A lead screw 14 is rotatably connected between the bearing seat 12 and the bearing plate 13, and a nut seat 9 is threadedly connected to the outer wall of the lead screw 14.

[0029] In this embodiment, the lifting mechanism supports the lead screw 14 through the bearing seat 12 and the shaft plate 13, and is driven by the handwheel 15. The rotational motion is converted into precise linear motion through the lead screw 14 nut pair, providing a stable and labor-saving power input method. The lifting process is smooth and controllable and easy to fine-tune.

[0030] As a technical optimization of this utility model, guide rods 16 are fixedly connected to the four corners of the upper end face of the base 1, and the lifting plate 2 is slidably connected to the outer wall of the four guide rods 16.

[0031] In this embodiment, the lifting process of the lifting plate 2 is guided by the guide rods 16 set at the four corners of the base 1. The rigid constraint of the guide rods 16 restricts the degree of freedom of the lifting plate 2 in the direction other than vertical, which greatly enhances the stability and anti-eccentric load capacity of the entire lifting process and prevents the squeezing roller from overturning during the pulling process.

[0032] As a technical optimization of this utility model, an extension plate 17 is fixedly connected to the right side wall of the base 1, and a tool box 18 is provided on the upper surface of the extension plate 17.

[0033] In this embodiment: a tool box 18 is set on the right side of the base 1 via an extension plate 17, providing a centralized tool storage space for operation, avoiding tools from being scattered and lost, improving the organization and efficiency of the operation, and reflecting humanized design.

[0034] As a technical optimization of this utility model, a scale line 19 is provided on the left side of the upper end face of the lifting plate 2.

[0035] In this embodiment: a scale line 19 is set on the upper surface of the lifting plate 2 to provide a visual spacing reference scale. Operators can quickly and intuitively make coarse adjustments to the spacing between the two guide rails 5, which greatly shortens the preparation time for adapting to different specifications of squeeze rollers.

[0036] As a technical optimization of this utility model, the end of the lead screw 14 away from the shaft plate 13 passes through the shaft seat 12 and is fixedly connected to the handwheel 15.

[0037] In this embodiment, one end of the lead screw 14 is connected to the handwheel 15, allowing the operator to apply torque in a comfortable posture to drive the entire lifting mechanism, thus reducing labor intensity.

[0038] As a technical optimization of this utility model, the outer wall of the slider 4 is threaded with a fixing bolt, and the end of the fixing bolt abuts against the outer wall of the slide rail 3.

[0039] In this embodiment, the slider 4 is locked to the slide rail 3 by fixing bolts. The huge locking force generated by the thread is used to eliminate the gap between the slider 4 and the slide rail 3, ensuring that the guide rail 5 will not be displaced when bearing load and pulling the squeezing roller, thus ensuring the reliability and safety of the operation.

[0040] The working principle and usage process of this utility model are as follows: First, according to the specifications of the extrusion roller to be replaced, the operator loosens the fixing bolts on the slider 4, moves the two guide rails 5 to a suitable distance with reference to the scale line 19, and then tightens the fixing bolts. Then, the device is moved to the front of the extruder by the universal wheels 20, and the handwheel 15 is turned clockwise or counterclockwise. The handwheel 15 drives the lead screw 14 to rotate under the support of the shaft seat 12 and the shaft plate 13. The nut seat 9, which meshes with the lead screw 14, moves horizontally under the constraint of the guide groove 7. The movement of the nut seat 9 pushes the cross hinge rod 6 to unfold through the hinge point. Alternatively, the left apex of the cross hinge rod 6 can be retracted, and the lifting plate 2 can be pushed smoothly up or down along the four guide rods 16 through the guide slide 11 and guide slide 10 until the guide rail 5 on the lifting plate 2 is precisely aligned with the guide rail on the extruder. The operator smoothly pulls the extruder roller out of the extruder onto the guide rail 5. After confirming that it is placed securely, the operator reverses the handwheel 15 to lower the lifting plate 2 to the low position, and then the extruder roller can be safely removed. When installing a new roller, the above lifting and docking operation is repeated. Pushing the new roller into the extruder completes the entire replacement process. The tool box 18 is used to store various tools required for operation.

[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] However, the above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A squeeze roller changing device, characterized in that: include: The base (1) is a rectangular plate structure and has multiple casters (20) installed at the bottom. The lifting plate (2) is located directly above the base (1). The upper end face of the lifting plate (2) is fixedly connected to the left and right sides of the upper end face with slide rails (3) parallel to the width direction of the lifting plate (2). The upper end face of the two slide rails (3) is slidably connected to two sliders (4). The upper end face of the two sliders (4) located on the same side in the front and back direction is fixedly connected to guide rails (5). The two guide rails (5) are parallel to the length direction of the lifting plate (2). The lifting mechanism includes a cross hinge rod (6) installed between the base (1) and the lifting plate (2). The upper and lower ends of the right side of the cross hinge rod (6) are fixedly connected to the base (1) and the lifting plate (2) respectively through hinge seats. The upper left side of the base (1) is fixedly connected to two guide grooves (7) distributed front and back. A slide plate (8) is slidably connected between the two guide grooves (7). A nut seat (9) is fixedly connected to the upper end of the slide plate (8). A guide slide (10) is fixedly connected to the lower left side of the lifting plate (2). A guide slide seat (11) is slidably connected to the lower end of the guide slide (10). The upper and lower ends of the left side of the cross hinge rod (6) are fixedly connected to the guide slide seat (11) and the nut seat (9) respectively through hinge seats.

2. The extrusion roller replacement device according to claim 1, characterized in that: The lifting mechanism also includes a bearing seat (12) and a bearing plate (13) fixedly connected to the upper end face of the base (1). A lead screw (14) is rotatably connected between the bearing seat (12) and the bearing plate (13). The nut seat (9) is threadedly connected to the outer wall of the lead screw (14).

3. The extrusion roller changing device according to claim 1, characterized in that: Guide rods (16) are fixedly connected to the four corners of the upper end face of the base (1), and the lifting plate (2) is slidably connected to the outer wall of the four guide rods (16).

4. The extrusion roller replacement device according to claim 1, characterized in that: An extension plate (17) is fixedly connected to the right side wall of the base (1), and a tool box (18) is provided on the upper surface of the extension plate (17).

5. The extrusion roller changing device according to claim 1, characterized in that: The upper left side of the lifting plate (2) is provided with a scale line (19).

6. The extrusion roller changing device according to claim 2, characterized in that: The end of the lead screw (14) away from the shaft plate (13) passes through the shaft seat (12) and is fixedly connected to a handwheel (15).

7. The extrusion roller changing device according to claim 1, characterized in that: The outer wall of the slider (4) is threaded with a fixing bolt, and the end of the fixing bolt abuts against the outer wall of the slide rail (3).

Images