A clamping mechanism for a belt vulcanizer

CN224374628UActive Publication Date: 2026-06-19HEBEI ZHENAI MACHINERY PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI ZHENAI MACHINERY PARTS CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-19

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Abstract

This utility model discloses a clamping mechanism for a belt vulcanizing machine, belonging to the field of belt vulcanization. It aims to solve the problem that in existing technologies, each independent clamping component needs to be adjusted individually. For wide belt vulcanization operations, a single clamping process often requires operating 4-8 or even more clamping components, with the entire clamping process typically taking 15-30 minutes. This severely impacts the overall working efficiency of the belt vulcanizing machine, especially in scenarios requiring frequent belt joint vulcanization. Furthermore, operators must move back and forth between different positions on the equipment during clamping, repeatedly performing repetitive actions such as turning handles. During adjustment, the clamping degree of each crossbeam must be constantly checked to avoid over-clamping or under-clamping, increasing both the operator's physical exertion and the required level of skill. The mechanism includes a frame with studs at both ends.
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Description

Technical Field

[0001] This utility model belongs to the field of tape vulcanization, specifically relating to a clamping mechanism used in tape vulcanizing machines. Background Technology

[0002] As a key piece of equipment for achieving vulcanized connections of conveyor belt joints, the belt vulcanizing machine is widely used in the maintenance and processing of conveyor belts in industries such as mining, ports, metallurgy, and power. It applies specific temperature and pressure to the belt joint and maintains this pressure for a certain period, causing the rubber material to undergo a vulcanization reaction, forming a joint structure with high strength and good sealing performance, ensuring the stability and reliability of the belt during long-term operation. The clamping mechanism is the core component of the belt vulcanizing machine; its main function is to tightly clamp the belt joint to be vulcanized and related tooling, ensuring that the belt remains under a preset pressure environment throughout the vulcanization process.

[0003] Currently, the clamping devices used in most tape vulcanizing machines on the market are of a split structure. This structure usually contains multiple independent clamping components, each corresponding to a crossbeam on the vulcanizing machine. When performing tape clamping operations, the operator needs to apply clamping force to the crossbeams at different positions one by one by rotating the screws, handles, and other parts of each clamping component in a certain sequence until all crossbeams reach the preset clamping state.

[0004] The clamping operation of this split-type clamping structure is cumbersome and time-consuming. Because each independent clamping component needs to be adjusted individually, for the vulcanization of wide-width conveyor belts, a single clamping process often requires the operation of 4-8 or even more clamping components. The entire clamping process usually takes 15-30 minutes, which seriously affects the overall working efficiency of the conveyor belt vulcanizing machine. This problem is even more prominent in scenarios where frequent conveyor belt joint vulcanization is required. In addition, the operator needs to move back and forth between different positions of the equipment during the clamping process, repeatedly performing repetitive actions such as turning the handle. During the adjustment process, it is also necessary to constantly check the clamping degree of each crossbeam to avoid over-clamping or under-clamping. This not only increases the physical exertion of the operator, but also increases the requirements for the operator's proficiency.

[0005] Therefore, there is an urgent need for a clamping mechanism for use on a belt vulcanizing machine that can simultaneously clamp the crossbeam. Utility Model Content

[0006] (1) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a clamping mechanism for a belt vulcanizing machine. This addresses the problem that existing technologies require individual adjustment of each clamping component. For wide belt vulcanization operations, a single clamping process often requires operating 4-8 or even more clamping components, with the entire clamping process typically taking 15-30 minutes. This severely impacts the overall working efficiency of the belt vulcanizing machine, especially in scenarios requiring frequent belt joint vulcanization. Furthermore, operators must move back and forth between different positions on the equipment during clamping, repeatedly performing repetitive actions such as turning handles. During adjustment, the clamping degree of each crossbeam must be constantly checked to avoid over-clamping or under-clamping, increasing both the operator's physical exertion and the required level of skill.

[0008] (2) Technical solution

[0009] To solve the above-mentioned technical problems, this utility model provides a clamping mechanism for a tape vulcanizing machine, including a frame, studs at both ends of the frame, adjusting mechanisms at both ends of the studs, a clamping mechanism at the outer end of the stud, and a washer connected to the outer side of the stud. A nut is threadedly connected to the outer side of the stud, a first gear is welded to the outer side of the nut, a connecting plate is provided at the outer end of the stud, a second gear is connected to the lower side of the connecting plate, a round shaft is fixedly connected to the upper middle position of the second gear, a baffle is fixedly connected to the upper side of the round shaft, arc plates are welded to the left and right ends of the upper side of the connecting plate, an adjusting screw is connected inside the arc plate, and a second handle is welded to the end of the adjusting screw away from the arc plate.

[0010] Furthermore, the adjustment mechanism includes an adjustment tube connected inside the stud. A circular plate is welded and fixedly connected to the middle position of the inner side of the adjustment tube. A bearing is installed at the middle position inside the circular plate. An upper threaded rod is fixedly connected to the upper end of the inner side of the bearing, and a lower threaded rod is fixedly connected to the lower end of the inner side of the bearing. A driven bevel gear is fixedly connected to the lower end of the outer side of the upper threaded rod. A rotating rod is connected inside the tube wall of the adjustment tube. A first handle is welded to the end of the rotating rod away from the frame. A limit ring is fixedly connected to the outer side of the rotating rod. A driving bevel gear is fixedly connected to the outer side of the end of the rotating rod away from the first handle. A limit rod is fixedly connected to the left end of the outer side of the adjustment tube.

[0011] Furthermore, a first rotating hole is provided in the middle of the connecting plate, which runs vertically through the plate. The outer side of the circular shaft is rotatably connected to the inner side of the first rotating hole. The lower side of the connecting plate is slidably connected to the upper side of the second gear. The lower side of the baffle is slidably connected to the upper side of the connecting plate.

[0012] Furthermore, the left and right sides of the connecting plate are slidably connected to the outer side of the stud, and a threaded hole that runs through the left and right sides is opened at the middle position inside the arc-shaped plate. The outer side of the adjusting screw is threadedly connected to the inner side of the threaded hole, and the end of the adjusting screw away from the second handle abuts against the outer side of the stud. The inner side of the arc-shaped plate is slidably connected to the outer side of the stud.

[0013] Furthermore, the inner side of the gasket is slidably connected to the outer side of the stud, and the front and rear ends of the frame are provided with slots. The outer side of the stud is slidably connected to the inner side of the slots. The upper and lower sides respectively abut against the side adjacent to the frame and the nut. The first gear meshes with the second gear.

[0014] Furthermore, a circular groove is provided inside the stud near one end of the adjusting tube, and a limiting groove is provided at the left end of the circular groove. The outer sides of the upper and lower ends of the adjusting tube are slidably connected to the inner side of the circular groove. A threaded groove is provided at the middle position of the inner side of the stud. The outer sides of the upper threaded rod and the lower threaded rod are threadedly connected to the inner side of the threaded groove. The outer side of the limiting rod is slidably connected to the inner side of the limiting groove.

[0015] Furthermore, the front end of the regulating tube is provided with a second rotating hole, the outer side of the rotating rod is rotatably connected to the inner side of the second rotating hole, and the outer end of the rotating rod is provided with two limiting rings, and the adjacent side of the two limiting rings is slidably connected to the inner and outer sides of the regulating tube wall.

[0016] Furthermore, the driven bevel gear meshes with the driving bevel gear.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention, by setting up a clamping mechanism, fixes the connecting plate between two adjacent studs in the horizontal direction. After the first gear and the second gear mesh, by rotating a nut, the first gear at its outer end rotates, which in turn causes the second gear to rotate, thereby causing all the first gears to rotate together. This, in turn, causes the first gears at the outer ends of all studs to rotate together. At the same time, the nut rotates and moves towards the frame, so that all frames can be clamped simultaneously, and the pressure they are subjected to during clamping is the same, thus improving the clamping efficiency of the frames in the tape vulcanizing machine.

[0020] This utility model, by setting an adjustment mechanism, allows the driven bevel gear to rotate when the first handle is rotated, causing the upper and lower threaded rods to rotate inside the threaded grooves of the studs at the upper and lower ends of the adjustment tube. This causes the studs to move relative to the adjustment tube, changing the overall length of the studs and the adjustment tube. This allows for adjustment of the overall length of the studs and the adjustment tube when the thickness of the rubber tape between the upper and lower frames changes, thus adapting the overall length of the clamping mechanism. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure at the outer end of the stud of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the stud of this utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A;

[0026] Figure 5 This is a schematic diagram of the adjustment mechanism of this utility model.

[0027] The markings in the attached diagram are as follows: 1. Frame; 2. Stud; 301. Adjusting tube; 302. Circular plate; 303. Bearing; 304. Upper threaded rod; 305. Lower threaded rod; 306. Driven bevel gear; 307. Rotating rod; 308. First handle; 309. Limiting ring; 310. Driving bevel gear; 311. Limiting rod; 401. Washer; 402. Nut; 403. First gear; 404. Connecting plate; 405. Second gear; 406. Circular shaft; 407. Baffle; 408. Arc plate; 409. Adjusting screw; 410. Second handle. Detailed Implementation

[0028] 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.

[0029] This specific embodiment is a clamping mechanism for a tape vulcanizing machine, and its structural schematic diagram is shown below. Figures 1 to 4 As shown, the system includes a frame 1, with studs 2 at both the front and rear ends of the frame 1. Adjustment mechanisms are provided at both the inner and outer ends of the studs 2. Each adjustment mechanism includes an adjustment tube 301 connected inside the studs 2. A circular plate 302 is welded and fixedly connected to the middle position of the inner side of the adjustment tube 301. A bearing 303 is installed at the middle position inside the circular plate 302. An upper threaded rod 304 is fixedly connected to the upper inner end of the bearing 303, and a lower threaded rod 305 is fixedly connected to the lower inner end of the bearing 303. A driven bevel gear 306 is fixedly connected to the lower outer end of the upper threaded rod 304. A rotating rod 307 is connected inside the wall of the adjustment tube 301. A first handle 308 is welded to the end of the rotating rod 307 away from the frame 1. A limit ring 309 is fixedly connected to the outer side of the rotating rod 307. A driving bevel gear 310 is fixedly connected to the outer side of the end of the rotating rod 307 away from the first handle 308. A limit rod 311 is fixedly connected to the left outer end of the adjustment tube 301. A circular groove is formed inside the stud 2 near the adjusting tube 301, and a limiting groove is formed at the left end of the circular groove. The outer sides of the upper and lower ends of the adjusting tube 301 are slidably connected to the inner side of the circular groove. A threaded groove is formed at the middle position of the inner side of the stud 2. The outer sides of the upper threaded rod 304 and the lower threaded rod 305 are threadedly connected to the inner side of the threaded groove. The outer side of the limiting rod 311 is slidably connected to the inner side of the limiting groove. A second rotating hole is formed at the front end of the adjusting tube 301. The outer side of the rotating rod 307 is rotatably connected to the inner side of the second rotating hole. Two limiting rings 309 are provided at the outer end of the rotating rod 307, and the adjacent side of the two limiting rings 309 is slidably connected to the inner and outer sides of the tube wall of the adjusting tube 301. The driven bevel gear 306 meshes with the driving bevel gear 310. Therefore, when the first handle 308 rotates, causing the active bevel gear 310 to rotate, it can drive the driven bevel gear 306 to rotate, causing the upper threaded rod 304 and the lower threaded rod 305 to rotate inside the threaded grooves inside the studs 2 at the upper and lower ends of the adjusting tube 301. This causes the studs 2 to move relative to the adjusting tube 301, changing the overall length of the studs 2 at the upper and lower ends and the adjusting tube 301. This allows the overall length of the studs 2 and the adjusting tube 301 to be adjusted when the thickness of the rubber tape between the upper and lower frame 1 changes, thus adapting the overall length of the clamping mechanism.

[0030] Cooperate Figure 5As shown, a clamping mechanism is provided at the outer end of the stud 2, and the clamping mechanism includes a washer 401 connected to the outer side of the stud 2. A nut 402 is threadedly connected to the outer side of the stud 2, and a first gear 403 is welded to the outer side of the nut 402. A connecting plate 404 is provided at the outer end of the stud 2, and a second gear 405 is connected to the lower side of the connecting plate 404. A round shaft 406 is fixedly connected to the upper middle position of the second gear 405, and a baffle 407 is fixedly connected to the upper side of the round shaft 406. A first through-hole is opened in the middle position inside the connecting plate 404. The outer side of the round shaft 406 is rotatably connected to the inner side of the first through-hole. The lower side of the connecting plate 404 is slidably connected to the upper side of the second gear 405, and the lower side of the baffle 407 is slidably connected to the upper side of the connecting plate 404. Thus, the second gear 405 can only rotate from the lower side of the connecting plate 404.

[0031] The connecting plate 404 has arc-shaped plates 408 welded to its upper left and right ends. An adjusting screw 409 is connected inside the arc-shaped plate 408, and a second handle 410 is welded to the end of the adjusting screw 409 furthest from the arc-shaped plate 408. The left and right sides of the connecting plate 404 are slidably connected to the outer sides of the studs 2. A through-hole is formed in the middle of the arc-shaped plate 408. The outer side of the adjusting screw 409 is threadedly connected to the inner side of the threaded hole, and the end of the adjusting screw 409 furthest from the second handle 410 abuts against the outer side of the stud 2. The inner side of the arc-shaped plate 408 is slidably connected to the outer side of the stud 2. Thus, after sliding the connecting plate 404 to the outer sides of two adjacent studs 2, rotating the second handle 410 causes the adjusting screw 409 to rotate and move within the threaded hole until the adjusting screw 409 abuts against the outer side of the stud 2, thereby fixing the connecting plate 404 to the outer end of the stud 2.

[0032] Furthermore, the inner side of the gasket 401 is slidably connected to the outer side of the stud 2, and slots are provided at both ends of the frame 1. The outer side of the stud 2 is slidably connected to the inner side of the slot, and the upper and lower sides of the gasket 401 abut against the adjacent sides of the frame 1 and the nut 402, respectively. The first gear 403 meshes with the second gear 405. Thus, after the connecting plate 404 is fixed between two adjacent studs 2 in the horizontal direction, and the first gear 403 and the second gear 405 are meshed, by rotating a nut 402, the first gear 403 at its outer end rotates, which in turn rotates the second gear 405, thereby causing all the first gears 403 to rotate together. This causes all the first gears 403 at the outer ends of all the studs 2 to rotate together. At the same time, the nut 402 rotates and moves towards the frame 1, so that all the frames 1 can be clamped at the same time, and the pressure they are subjected to when clamped is the same, which improves the clamping efficiency of the frames 1 in the belt vulcanizing machine.

[0033] Working principle: When clamping the frame 1 of the tape vulcanizing machine, first slide the studs 2 at both ends of the adjusting tube 301 into the slots at the front and rear ends of the frame 1. Then slide the connecting plate 404 to the outside of two adjacent studs 2. Then rotate the second handle 410 to move the adjusting screw 409 until the adjusting screw 409 abuts against the outside of the stud 2, so that the connecting plate 404 is fixed to the outer end of the stud 2. At the same time, the first gear 403 and the second gear 405 mesh. Then rotate the nut 402 at the outer end of a stud 2, so that when the first gear 403 at its outer end rotates, the second gear 405 can rotate, and then all the first gears 403 rotate together. In addition, the first gears 403 at the outer end of all the studs 2 rotate together, and the nut 402 rotates and moves towards the frame 1 at the same time, until it contacts the upper side of the upper frame 1 and the lower side of the lower frame 1, so that all the frames 1 are clamped at the same time.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 clamping mechanism for use on a belt vulcanizer, comprising a frame (1), characterized in that, The frame (1) is provided with studs (2) at both ends. Adjustment mechanisms are provided at both the inner and outer ends of the studs (2). A clamping mechanism is provided at the outer end of the studs (2), and the clamping mechanism includes a washer (401) connected to the outside of the studs (2). A nut (402) is threaded onto the outer side of the studs (2). A first gear (403) is welded to the outer side of the nut (402). A connecting plate (404) is provided at the outer end of the studs (2). A second gear (405) is connected to the lower side of the connecting plate (404). A round shaft (406) is fixedly connected to the middle position of the upper side of the second gear (405). A baffle (407) is fixedly connected to the upper side of the round shaft (406). Arc plates (408) are welded to the left and right ends of the upper side of the connecting plate (404). An adjusting screw (409) is connected inside the arc plate (408). A second handle (410) is welded to the end of the adjusting screw (409) away from the arc plate (408).

2. The clamping mechanism for a tape vulcanizing machine according to claim 1, characterized in that, The adjusting mechanism includes an adjusting tube (301) connected inside the stud (2). A circular plate (302) is welded and fixedly connected to the middle position of the inner side of the adjusting tube (301). A bearing (303) is installed at the middle position inside the circular plate (302). An upper threaded rod (304) is fixedly connected to the upper end of the inner side of the bearing (303). A lower threaded rod (305) is fixedly connected to the lower end of the inner side of the bearing (303). A lower threaded rod (305) is fixedly connected to the lower end of the outer side of the upper threaded rod (304). Driven bevel gear (306), a rotating rod (307) is connected inside the wall of the adjusting tube (301), a first handle (308) is welded to the end of the rotating rod (307) away from the frame (1), a limit ring (309) is fixedly connected to the outside of the rotating rod (307), a driving bevel gear (310) is fixedly connected to the outside of the end of the rotating rod (307) away from the first handle (308), and a limit rod (311) is fixedly connected to the left end of the outside of the adjusting tube (301).

3. A clamping mechanism for a tape vulcanizing machine according to claim 1, characterized in that, The connecting plate (404) has a first rotating hole that runs vertically through the middle of its interior. The outer side of the round shaft (406) is rotatably connected to the inner side of the first rotating hole. The lower side of the connecting plate (404) is slidably connected to the upper side of the second gear (405). The lower side of the baffle (407) is slidably connected to the upper side of the connecting plate (404).

4. A clamping mechanism for a tape vulcanizing machine according to claim 1, characterized in that, The left and right sides of the connecting plate (404) are slidably connected to the outer side of the stud (2). A threaded hole that runs through the left and right sides is opened in the middle position inside the arc plate (408). The outer side of the adjusting screw (409) is threadedly connected to the inner side of the threaded hole. The end of the adjusting screw (409) away from the second handle (410) abuts against the outer side of the stud (2). The inner side of the arc plate (408) is slidably connected to the outer side of the stud (2).

5. A clamping mechanism for a tape vulcanizing machine according to claim 1, characterized in that, The inner side of the gasket (401) is slidably connected to the outer side of the stud (2). The front and rear ends of the frame (1) are provided with slots. The outer side of the stud (2) is slidably connected to the inner side of the slot. The upper and lower sides respectively abut against the side adjacent to the frame (1) and the nut (402). The first gear (403) meshes with the second gear (405).

6. A clamping mechanism for a tape vulcanizing machine according to claim 2, characterized in that, The stud (2) has a circular groove at one end near the adjusting tube (301), and a limiting groove is provided at the left end of the circular groove. The outer sides of the upper and lower ends of the adjusting tube (301) are slidably connected to the inner side of the circular groove. A threaded groove is provided at the middle position of the inner side of the stud (2). The outer sides of the upper threaded rod (304) and the lower threaded rod (305) are threadedly connected to the inner side of the threaded groove. The outer side of the limiting rod (311) is slidably connected to the inner side of the limiting groove.

7. A clamping mechanism for a tape vulcanizing machine according to claim 2, characterized in that, The front end of the regulating tube (301) is provided with a second rotating hole. The outer side of the rotating rod (307) is rotatably connected to the inner side of the second rotating hole. The outer end of the rotating rod (307) is provided with two limiting rings (309), and the adjacent side of the two limiting rings (309) is slidably connected to the inner and outer sides of the tube wall of the regulating tube (301).

8. A clamping mechanism for a tape vulcanizing machine according to claim 2, characterized in that, The driven bevel gear (306) meshes with the driving bevel gear (310).