Rapid centering device for heat treatment furnace

Abstract

The utility model relates to the technical field of thermal treatment furnace rapid centering, in particular to a thermal treatment furnace rapid centering device which comprises a conveying frame, conveying rollers arranged on the upper side of the conveying frame, a supporting seat fixed in the middle of the conveying frame, a gear rotationally arranged in the middle of the upper side of the supporting seat, and a telescopic cylinder fixed on the lower side of the supporting seat. Sliding supports are arranged at the two ends of the conveying frame and the two ends of the conveying rollers, one end of the telescopic cylinder is hinged to the bottom of one sliding support, racks meshed with the gears are fixed to one sides of the sliding supports, and a plurality of rubber rolling wheels are rotationally arranged on the sides, close to the tops, of the sliding supports. The utility model solves the problems that the existing heat treatment production line adopts the mode that a steel plate is lifted by a lifting platform after being static and the side part is hydraulically centered, has obvious defects, is complicated to operate, long in time consumption, seriously affects the production rhythm, is slow in centering response, is difficult to adapt to the rapid production of a thin specification production line, possibly damages workpieces, and is high in maintenance cost and high in difficulty.

Description

Technical Field

[0001] This utility model relates to the field of rapid centering technology for heat treatment furnaces, specifically to a rapid centering device for heat treatment furnaces. Background Technology

[0002] In heat treatment production lines, precise alignment of workpieces is a crucial operation. The accuracy of alignment directly affects the effectiveness of subsequent heat treatment processes and the quality of the workpieces. With the continuous development of industrial production, the requirements for production efficiency and product quality of heat treatment production lines are increasing, especially in thin-gauge heat treatment production lines, where the production pace is fast and the workpiece dimensions are thin, placing more stringent demands on the response speed, alignment accuracy, and stability of the alignment device.

[0003] In existing centering methods, the centering operation can only be performed after the steel plate has come to a complete stop. Furthermore, the lifting of the platform and the operation of the side hydraulic devices also require time, making the entire process cumbersome and time-consuming. In environments like thin-gauge heat treatment production lines where production rhythm is extremely critical, this extended centering time significantly reduces the overall production efficiency and fails to meet the demands of rapid production. Because existing technology relies on multiple operational steps after the steel plate has come to a stop, the centering process involves multiple mechanical actions, making it difficult for the centering device to respond promptly to changes in the production process. This hinders its adaptation to the rapid and continuous production characteristics of thin-gauge heat treatment production lines, potentially leading to excessively long workpiece dwell times on the production line and impacting overall production progress. Additionally, existing hydraulic centering devices have relatively fixed structures and limited operational modes, making it difficult to flexibly adjust them according to different workpiece specifications and production requirements. In thin-gauge heat treatment production lines, the specifications and dimensions of workpieces may vary, and existing centering devices may not be able to adapt well to these changes, thus affecting the accuracy and effectiveness of centering. In existing centering processes, the lifting platform and the pressing action of the side hydraulic device are required; improper operation or insufficient centering accuracy may damage thin-gauge workpieces, affecting workpiece quality and increasing production costs. Existing hydraulic centering devices have complex structures, including multiple mechanical components and hydraulic systems, making them difficult to maintain and requiring regular professional maintenance and upkeep, resulting in high maintenance costs. Furthermore, in the event of a malfunction, the lengthy repair time further disrupts normal production line operations. Utility Model Content

[0004] The technical problem this utility model aims to solve is that the existing heat treatment production line uses a lifting platform to raise the steel plate after it has come to rest and a side hydraulic centering method, which has obvious defects. The operation is cumbersome and time-consuming, which seriously affects the production rhythm. The centering response is slow, making it difficult to adapt to the rapid production of thin-specification production lines. It may also damage the workpiece, and the equipment has high maintenance costs and is difficult to maintain.

[0005] To solve the above problems, the technical solution adopted by this utility model is a rapid centering device for a heat treatment furnace, including a conveyor frame, a conveyor roller on the upper side of the conveyor frame, a support base fixed in the middle of the conveyor frame, a gear rotatably mounted on the upper middle of the support base, a telescopic cylinder fixed on the lower side of the support base, sliding supports located at both ends of the conveyor frame and the conveyor roller, one end of the telescopic cylinder being hinged to the bottom of a sliding support, a rack meshing with the gear being fixed on one side of the sliding support, and several rubber rollers rotatably mounted near the top on one side of the sliding support.

[0006] As a further embodiment of this utility model: a limiting hole is provided on the side of the sliding support at the conveying roller. The limiting hole is an elongated hole, and its length direction is consistent with the axial direction of the conveying roller. The bottom of the sliding support is limited and slidably mounted on the slide rail provided on the side of the conveying frame by a slider. The slide rail extends along the axial direction of the conveying roller to restrict the sliding support to slide only in the axial direction of the conveying roller.

[0007] As a further embodiment of this utility model: the conveyor frame is fixed to the ground by anchor bolts, with at least four anchor bolts evenly distributed at the four corners of the bottom of the conveyor frame to ensure the stability of the conveyor frame installation.

[0008] As a further embodiment of this invention: the top of the rubber roller is 5-10mm higher than the position of the conveyor roller, and the outer surface of the rubber roller is provided with anti-slip texture to increase the friction between it and the workpiece, so as to ensure that the workpiece can be effectively pushed during the alignment process.

[0009] As a further embodiment of this utility model: a pair of guide columns are fixed on both sides of the support base. The guide columns are cylindrical and their axes are parallel to the axis of the conveying roller. The sliding support is limited and slidably disposed on the outside of the guide columns by a linear bearing. The linear bearing cooperates with the guide columns to ensure the smoothness and accuracy of the sliding support.

[0010] As a further embodiment of this utility model: the telescopic cylinder is connected to an external hydraulic control system through a hydraulic pipeline. A pressure gauge and a throttle valve are installed on the hydraulic pipeline. The pressure gauge is used to monitor the working pressure of the telescopic cylinder in real time, and the throttle valve is used to adjust the telescopic speed of the telescopic cylinder to adapt to different alignment requirements.

[0011] Compared with the prior art, the advantages of this utility model are as follows: This application does not require waiting for the steel plate to come to rest, and can quickly center it during the conveying process, reducing centering time and significantly improving the production efficiency of the thin-gauge heat treatment production line; the sliding support driven by the telescopic cylinder drives the rack and pinion to quickly adjust the position and respond to production changes in a timely manner; the gear and rack transmission with limiting and guiding structure ensures the accuracy and stability of the centering operation; the rubber roller can reduce friction with the workpiece and avoid damage to the thin-gauge workpiece; the structure is relatively simple and can be connected to the external hydraulic control system, which is convenient for operation and maintenance. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a front view of the overall structure of a rapid centering device for a heat treatment furnace according to this utility model.

[0014] Figure 2 This is a top view of the overall structure of a rapid centering device for a heat treatment furnace according to this utility model.

[0015] In the attached image:

[0016] 1. Conveyor frame; 2. Conveyor roller; 3. Support base; 4. Gear; 5. Telescopic cylinder; 6. Sliding support; 7. Rack; 8. Rubber roller; 9. Guide column. Detailed Implementation

[0017] 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.

[0018] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0019] Combined with appendix Figure 1-2 It can be seen that the conveyor includes a conveyor frame 1, a conveyor roller 2 on the upper side of the conveyor frame 1, a support base 3 fixed in the middle of the conveyor frame 1, a gear 4 rotatably mounted on the upper middle of the support base 3, a telescopic cylinder 5 fixed on the lower side of the support base 3, and sliding supports 6 located at both ends of the conveyor frame 1 and the conveyor roller 2. One end of the telescopic cylinder 5 is hinged to the bottom of a sliding support 6. A rack 7 that meshes with the gear 4 is fixed on one side of the sliding support 6, and several rubber rollers 8 are rotatably mounted on one side of the sliding support 6 near the top.

[0020] A limiting hole is provided on the side of the sliding support 6 at the location of the conveyor roller 2. This limiting hole is an elongated hole, the length of which is aligned with the axial direction of the conveyor roller 2. The bottom of the sliding support 6 is slidably mounted on a slide rail provided on the side of the conveyor frame 1 via a slider. The slide rail extends along the axial direction of the conveyor roller 2 to restrict the sliding support 6 to slide only in the axial direction of the conveyor roller 2. The conveyor frame 1 is fixed to the ground with at least four anchor bolts, which are evenly distributed at the four corners of the bottom of the conveyor frame 1 to ensure the stability of the installation. The top of the rubber roller 8 is 5-10mm higher than the position of the conveyor roller 2, and the outer surface of the rubber roller 8 is provided with... Anti-slip texture increases friction with the workpiece, ensuring effective workpiece movement during alignment. A pair of guide posts 9 are fixed to both sides of the support base 3. The guide posts 9 are cylindrical, with their axes parallel to the axis of the conveyor roller 2. The sliding support 6 is slidably positioned outside the guide posts 9 via linear bearings. The linear bearings cooperate with the guide posts 9 to ensure smooth and accurate sliding of the sliding support 6. The telescopic cylinder 5 is connected to an external hydraulic control system via hydraulic lines. A pressure gauge and a throttle valve are installed on the hydraulic lines. The pressure gauge monitors the working pressure of the telescopic cylinder 5 in real time, and the throttle valve adjusts the telescopic speed of the cylinder 5 to adapt to different alignment requirements.

[0021] The working principle of this application is as follows: When the workpiece is conveyed on the conveyor roller 2, if the workpiece deviates and needs to be aligned, the external hydraulic control system controls the telescopic cylinder 5 to move. The telescopic cylinder 5 extends and retracts, and since one end of it is hinged to the bottom of a sliding support 6, it pushes the sliding support 6 to slide along the guide post 9 and the side of the conveyor frame 1 for a limited position.

[0022] When the sliding support 6 moves, it drives the rack 7 fixed on one side of it to move synchronously. The rack 7 meshes with the rotating gear 4 on the support 3. According to the gear and rack transmission principle, the movement of the rack 7 will drive the gear 4 to rotate. At the same time, the rack 7 on the other sliding support 6 opposite to the hinge end of the telescopic cylinder 5 will also interact with the rotating gear 4, thereby driving the other sliding support 6 to move synchronously in the opposite direction.

[0023] The rubber rollers 8 on the two sliding supports 6 will move in the opposite direction of the workpiece offset until the rubber rollers 8 contact the workpiece and push the workpiece to move, so that the workpiece returns to the center position of the conveyor roller 2, thus achieving the centering operation.

[0024] Throughout the alignment process, the limiting holes on the side of the sliding support 6, the limiting sliding mechanism at the bottom, and the limiting function of the guide post 9 ensure the accuracy and stability of the movement of the sliding support 6, thereby guaranteeing the precision of the alignment operation. This device can perform alignment quickly and accurately during workpiece transfer, improving production efficiency and product quality.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A heat treatment furnace rapid centering device, comprising a conveying frame (1), the upper side of the conveying frame (1) is provided with a conveying roller (2), and a supporting seat (3) is fixed in the middle of the conveying frame (1), characterized in that: The support seat (3) is rotatably provided with a gear (4) in the middle of the upper side, and the support seat (3) is fixedly provided with a telescopic cylinder (5); sliding supports (6) are arranged at both ends of the conveying frame (1) and the conveying roller (2); one end of the telescopic cylinder (5) is hingedly connected to the bottom of one sliding support (6); the sliding support (6) is fixedly provided with a rack (7) engaged with the gear (4) on one side; and a plurality of rubber rollers (8) are rotatably arranged on one side of the sliding support (6) close to the top.

2. The quick centering device for a heat treatment furnace according to claim 1, characterized in that: The sliding support (6) is provided with a limiting hole on the side face located at the conveying roller (2), and the bottom of the sliding support (6) is limitingly and slidably arranged on the side face of the conveying frame (1).

3. The quick centering device for a heat treatment furnace according to claim 1, characterized in that: The conveying frame (1) is fixed on the upper side of the ground.

4. The quick centering device for a heat treatment furnace according to claim 1, characterized in that: The rubber rollers (8) are higher than the position of the conveying roller (2) on the top.

5. The quick centering device for a heat treatment furnace according to claim 1, characterized in that: A pair of guide columns (9) are fixed on both sides of the support seat (3), and the sliding support (6) is limitingly and slidably arranged outside the guide columns (9).

6. The quick centering device for a heat treatment furnace according to claim 1, characterized in that: The telescopic cylinder (5) is connected in communication with an external hydraulic control system.

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