Straightening device for rack production

CN224600222UActive Publication Date: 2026-08-07ZHEJIANG LUXIN DOOR OPERATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LUXIN DOOR OPERATION EQUIP CO LTD
Filing Date
2025-09-20
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0004]现有的齿条在矫直时的材料脆性导致齿根、齿顶等薄弱部位在矫直力作用下易发生突发性断裂,而造成齿条报废,同时上述引证的专利文件也没有提出相关的方案来解决以上的问题;

Benefits of technology

[0015]与现有技术相比,该用于齿条生产的矫直装置,通过加热室、红外加热管与温度传感器的配合,加热室内部的加热实现有效降低低温环境下齿条的硬度,提高其韧性,同时有效减少热量散失,让红外加热管的辐射热能高效作用于齿条,减少矫直过程中的断裂风险和残留应力,使齿条在承受矫直力时更易发生塑性变形,提升矫直效率。

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Abstract

The utility model discloses a kind of straightening device for rack production, specifically related to rack production field, including workbench, the heating chamber is set in workbench upper end one side, heating chamber is internally provided with heating cavity, infrared heating tube is set in the equal interval of heating cavity inside two ends, and temperature sensor is set in the two ends of heating chamber interior, the heat preservation layer is set in heating chamber side, the heat preservation layer is made of aluminium silicate fibre material, and workbench upper end is fixedly set with connecting seat, connecting groove is set in the connecting seat upper end. The utility model is through the cooperation of heating chamber, heating cavity and infrared heating tube, the hardness of rack under low temperature environment is effectively reduced by heating in heating chamber, improve its toughness, effectively reduce heat loss simultaneously, make the radiant heat energy of infrared heating tube efficiently act on rack, reduce the fracture risk and residual stress in straightening process, make rack more easily occur plastic deformation when bearing straightening force, improve straightening efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of rack manufacturing, and more specifically, to a straightening device for rack manufacturing. Background Technology

[0002] During the production of racks, due to factors such as processing stress, racks are prone to bending and deformation, so straightening treatment is required.

[0003] A search revealed an existing patent (publication number: CN216369610U) that discloses a straightening device for rack production. The device includes a straightening table, a rotary motor fixedly mounted on one side of the straightening table, a transverse lead screw fixedly mounted on the output shaft of the rotary motor, a traveling plate threaded onto the outer side of the transverse lead screw, a pusher plate fixedly mounted on the top of the traveling plate, and two support plates fixedly mounted on the top of the straightening table. A common mounting box is fixedly installed on the top of the two support plates, and a drive motor is fixedly mounted on one side of the mounting box. This invention features a reasonable structural design. Through the cooperation of the rotary motor, groove, transverse lead screw, traveling plate, pusher plate, and dial indicator, the bending degree of the rack can be detected first, preventing qualified racks from undergoing straightening. When a rack fails the test, the lowered straightening plate can straighten it, thereby improving work efficiency.

[0004] The brittleness of the material in existing racks during straightening makes weak parts such as the tooth root and tooth tip prone to sudden fracture under the action of straightening force, resulting in the rack being scrapped. At the same time, the patent documents cited above do not propose any solutions to address the above problems.

[0005] Therefore, a straightening device for rack production is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a straightening device for rack production to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a straightening device for rack production, comprising a workbench, a heating chamber provided on one side of the upper end of the workbench, a heating cavity provided inside the heating chamber, infrared heating tubes provided at equal intervals at both ends inside the heating cavity, and temperature sensors provided at both ends inside the heating chamber.

[0008] Preferably, an insulation layer is provided on one side of the heating chamber, the insulation layer is made of aluminum silicate fiber material, and a connecting seat is fixedly provided on the upper end of the workbench, the upper end of the connecting seat is provided with a connecting groove, and the heating chamber is located on the upper end of the connecting seat.

[0009] Preferably, a hydraulic cylinder is provided on one side of the connecting seat, a hydraulic rod is sleeved on one side of the hydraulic cylinder, and a connecting block is fixedly provided on one side of the hydraulic rod, with the connecting block located inside the connecting groove.

[0010] Preferably, a bearing plate is fixedly provided on the upper end of the connecting block, and a limit plate is fixedly provided on one side of the upper end of the bearing plate.

[0011] Preferably, the upper end of the workbench is provided with a mounting bracket, the mounting bracket has a sliding groove inside, a dual-axis motor is fixedly installed in the middle of the sliding groove, the two ends of the dual-axis motor are connected to lead screws through output shafts, and the lead screws are threaded to sliders.

[0012] Preferably, a correction plate is fixedly provided on one side of the slider, and a rubber layer is provided on one side of the correction plate, the rubber layer being made of nano-ceramic composite rubber material.

[0013] Preferably, telescopic rods are fixedly installed at both ends inside the mounting frame, and one side of the telescopic rod is fixedly connected to the correction plate.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] Compared with existing technologies, this straightening device for rack production, through the cooperation of a heating chamber, an infrared heating tube, and a temperature sensor, effectively reduces the hardness of the rack in low-temperature environments and improves its toughness. At the same time, it effectively reduces heat loss and allows the radiant heat energy of the infrared heating tube to act efficiently on the rack, reducing the risk of breakage and residual stress during the straightening process. This makes the rack more prone to plastic deformation when subjected to straightening force, thereby improving straightening efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the position and structure of the connecting block of this utility model.

[0018] Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the heating chamber structure of this utility model.

[0020] The attached figures are labeled as follows: 1. Workbench; 2. Connecting seat; 3. Connecting groove; 4. Hydraulic cylinder; 5. Hydraulic rod; 6. Connecting block; 7. Bearing plate; 8. Limiting plate; 9. Heating chamber; 10. Heating cavity; 11. Infrared heating tube; 12. Insulation layer; 13. Temperature sensor; 14. Mounting bracket; 15. Slide groove; 16. Dual-axis motor; 17. Lead screw; 18. Slider; 19. Correcting plate; 20. Rubber layer; 21. Telescopic rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] As attached Figures 1 to 4 The straightening device shown includes a workbench 1, a heating chamber 9 is provided on one side of the upper end of the workbench 1, a heating cavity 10 is provided inside the heating chamber 9, infrared heating tubes 11 are provided at equal intervals at both ends inside the heating cavity 10, and temperature sensors 13 are provided at both ends inside the heating chamber 9.

[0024] Specifically, by incorporating an infrared heating tube 11, the movement of metal atoms in the rack is activated by heat energy, thereby reducing the rack's hardness, increasing its toughness, reducing the risk of breakage and residual stress during the straightening process, and making the rack more prone to plastic deformation when subjected to straightening force.

[0025] Example 2

[0026] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0027] In a preferred embodiment, a heat insulation layer 12 is provided on one side of the heating chamber 9. The heat insulation layer 12 is made of aluminum silicate fiber material, and a connecting seat 2 is fixedly provided on the upper end of the workbench 1. A connecting groove 3 is opened on the upper end of the connecting seat 2, and the heating chamber 9 is located on the upper end of the connecting seat 2. Furthermore, by providing the heat insulation layer 12, heat loss during the heating process is reduced, energy consumption is reduced, and the temperature inside the heating chamber 10 is kept stable, avoiding uneven heating effect of the rack due to temperature fluctuations.

[0028] In a preferred embodiment, a hydraulic cylinder 4 is provided on one side of the connecting seat 2, a hydraulic rod 5 is sleeved on one side of the hydraulic cylinder 4, and a connecting block 6 is fixedly provided on one side of the hydraulic rod 5, and the connecting block 6 is located inside the connecting groove 3; furthermore, by providing the connecting block 6, the movement direction can be accurately guaranteed during sliding, and the bearing plate 7 can be prevented from shifting.

[0029] In a preferred embodiment, a bearing plate 7 is fixedly provided on the upper end of the connecting block 6, and a limiting plate 8 is fixedly provided on one side of the upper end of the bearing plate 7; furthermore, by providing the limiting plate 8, the rack placed on the bearing plate 7 is laterally limited to prevent the rack from shifting left or right during conveying or heating.

[0030] In a preferred embodiment, a mounting frame 14 is provided on the upper end of the workbench 1. A slide groove 15 is provided inside the mounting frame 14. A dual-axis motor 16 is fixedly installed in the middle of the slide groove 15. Both ends of the dual-axis motor 16 are connected to lead screws 17 through output shafts, and sliders 18 are threaded to the outside of the lead screws 17. Furthermore, by providing the dual-axis motor 16, the straightening plate 19 is provided with the moving power, and the dual-axis drive can ensure that the sliders 18 at both ends move synchronously, ensuring uniform straightening force.

[0031] In a preferred embodiment, a straightening plate 19 is fixedly provided on one side of the slider 18, and a rubber layer 20 is provided on one side of the straightening plate 19. The rubber layer 20 is made of nano-ceramic composite rubber material. Furthermore, by providing the rubber layer 20, the rigid collision between the straightening plate 19 and the rack is avoided, which would cause scratches on the tooth surface and damage to the tooth root.

[0032] In a preferred embodiment, telescopic rods 21 are fixedly installed at both ends inside the mounting bracket 14, and one side of the telescopic rods 21 is fixedly connected to the straightening plate 19. Furthermore, by providing telescopic rods 21, the straightening plate 19 is prevented from tilting or shifting when it moves with the slider 18, ensuring that the straightening plate 19 always remains parallel to the rack.

[0033] The working process of this utility model is as follows:

[0034] First, the operator places the rack to be straightened on the upper end of the support plate 7. The limiting plate 8 on one side of the support plate 7 can laterally limit the rack, preventing it from shifting during transport. Then, the hydraulic cylinder 4 on the outer side of the connecting seat 2 is activated, driving the hydraulic rod 5 sleeved on one side to extend and retract. The hydraulic rod 5 drives the connecting block 6 to slide inside the connecting groove 3 at the upper end of the connecting seat 2. The sliding of the connecting block 6 causes the support plate 7 and the rack above it to move synchronously. After the rack enters the heating chamber 10, the infrared heating tubes 11, evenly spaced at both ends inside the heating chamber 10, are activated, radiating heat energy to the rack for heating treatment. The insulation layer 12 on one side of the heating chamber 9, made of aluminum silicate fiber material, effectively reduces the heat loss in the heating chamber 10. Heat dissipation within the heating chamber 10 ensures efficient application of radiant heat energy from the infrared heating tube 11 to the rack, improving heating efficiency. Simultaneously, temperature sensors 13 at both ends of the heating chamber 9 monitor the temperature within the heating cavity 10 in real time, and the control system adjusts the power of the infrared heating tube 11 to maintain a constant temperature within the heating cavity 10. Furthermore, under the influence of heat, the activity of metal atoms in the rack increases, resulting in reduced hardness and increased toughness, effectively reducing the risk of breakage and residual stress during subsequent straightening, laying the foundation for subsequent straightening operations. Additionally, after the rack has softened from heating, the hydraulic cylinder... 4. The rack is conveyed from the heating chamber 9 to the underside of the mounting frame 14 via the hydraulic rod 5. The dual-axis motor 16 located in the middle of the slide groove 15 inside the mounting frame 14 is started. The dual-axis motor 16 drives the lead screws 17 connected at both ends to rotate synchronously through the output shaft. The rotation of the lead screws 17 is converted into the horizontal movement of the slider 18 along the slide groove 15. The dual-axis motor 16 drives the lead screws 17 at both ends to rotate in opposite directions, so that the sliders 18 on both sides move synchronously towards the middle or to both sides. The straightening plate 19 fixed on one side of the slider 18 moves synchronously with the slider 18. The two ends of the mounting frame 14 are fixed and are connected to the straightening plate. The telescopic rod 21 connected to 19 ensures that the straightening plate 19 remains stable during movement and avoids deviation. When the straightening plates 19 on both sides move towards the middle, the rubber layer 20 made of nano-ceramic composite rubber material on one side contacts the surface of the rack. While avoiding damage to the rack surface, it applies a uniform straightening force to the rack. According to the degree of curvature of the rack, the dual-axis motor 16 precisely controls the rotation amplitude of the lead screw 17, thereby controlling the moving distance and straightening force of the straightening plate 19, causing the rack to undergo plastic deformation, achieving precise straightening, and completing one rack straightening operation.

[0035] 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 within the protection scope of the present utility model.

Claims

1. A straightening device for rack production, comprising a worktable (1), characterized in that; A heating chamber (9) is provided on one side of the upper end of the workbench (1). A heating cavity (10) is provided inside the heating chamber (9). Infrared heating tubes (11) are provided at equal intervals at both ends inside the heating cavity (10). Temperature sensors (13) are provided at both ends inside the heating chamber (9).

2. A straightening device for rack production according to claim 1, characterized in that: A heat insulation layer (12) is provided on one side of the heating chamber (9). The heat insulation layer (12) is made of aluminum silicate fiber material. A connecting seat (2) is fixedly provided on the upper end of the workbench (1). A connecting groove (3) is opened on the upper end of the connecting seat (2). The heating chamber (9) is located on the upper end of the connecting seat (2).

3. A straightening device for rack production according to claim 2, characterized in that: A hydraulic cylinder (4) is provided on one side of the connecting seat (2), a hydraulic rod (5) is sleeved on one side of the hydraulic cylinder (4), and a connecting block (6) is fixedly provided on one side of the hydraulic rod (5), and the connecting block (6) is located inside the connecting groove (3).

4. A straightening device for rack production according to claim 3, characterized in that: The upper end of the connecting block (6) is fixedly provided with a bearing plate (7), and a limit plate (8) is fixedly provided on one side of the upper end of the bearing plate (7).

5. A straightening device for rack production according to claim 1, characterized in that: The workbench (1) is provided with a mounting frame (14) at the upper end. The mounting frame (14) has a sliding groove (15) inside. A dual-axis motor (16) is fixedly installed in the middle of the sliding groove (15). Both ends of the dual-axis motor (16) are connected to lead screws (17) through output shafts, and the lead screws (17) are threaded to the outside of sliders (18).

6. A straightening device for rack production according to claim 5, characterized in that: A correction plate (19) is fixedly provided on one side of the slider (18), and a rubber layer (20) is provided on one side of the correction plate (19). The rubber layer (20) is made of nano-ceramic composite rubber material.

7. A straightening device for rack production according to claim 5, characterized in that: The mounting bracket (14) has telescopic rods (21) fixedly installed at both ends inside, and one side of the telescopic rods (21) is fixedly connected to the correction plate (19).

Citation Information

Patent Citations

  • Straightening device for rack production

    CN216369610U