Tension adjusting device for tire production

Abstract

This utility model relates to the technical field of belt tension adjustment in tire production, and in particular to a tension adjustment device for tire production. It effectively prevents the sliding block from slipping, prevents the tensioning pulley from moving during operation, avoids affecting belt tension, prevents the adjusted belt from becoming loose, and improves stability. The device includes a base plate, with a left and right pulley symmetrically rotatably mounted on its top. Two sets of guide blocks are symmetrically fixed on the sliding block, integrally formed with it. A limiting groove is formed on the base plate between the left and right pulleys, and a slot is formed next to the limiting groove. An adjusting screw is rotatably mounted on the limiting groove and the slot. A worm gear is fixedly sleeved on the adjusting screw, located in the slot. Support plates are symmetrically fixedly connected to both sides of the bottom of the slot. A worm is rotatably mounted on the two support plates, and an internal hexagonal nut is fixedly mounted on the right end of the worm, which meshes with the worm gear.

Description

Technical Field

[0001] This utility model relates to the technical field of belt tension adjustment in tire production, and in particular to a tension adjustment device for tire production. Background Technology

[0002] Belt drives have advantages such as mitigating load impact, smooth transmission operation, low noise, and low vibration, and are widely used in many fields for power transmission. Taking the tire industry as an example, tires are circular elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. During the mass production of tires, conveyor belts are needed for transportation. In the existing tire transportation transmission, due to the large resistance of the entire conveyor belt, belt drives are mostly used to reduce impact. However, during the transmission process, long-term mechanical fatigue causes the belt to loosen, making it very troublesome to adjust the tension, resulting in a reduction in belt transmission efficiency.

[0003] A search revealed that utility model patent CN219101979U discloses a tension adjustment device for tire production. When the belt becomes loose, the adjusting screw can be adjusted to move the sliding block, which in turn moves the adjusting pulley relative to the two fixed pulleys, thus adjusting the belt tension. While this device can adjust belt tension, the locking stability of the sliding block is poor, causing it to slip easily during operation. This slippage leads to movement of the tensioning pulley, affecting the belt tension and resulting in a looser, less stable belt after adjustment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a tension adjustment device for tire production that can effectively prevent the sliding block from sliding, prevent the tension pulley from moving during operation, avoid affecting the belt tension, prevent the adjusted belt from becoming loose, and improve stability.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tension adjustment device for tire production, comprising a base plate, with a left pulley and a right pulley symmetrically rotatably mounted on the top of the base plate, and further comprising a tension adjustment mechanism and a locking mechanism. The tension adjustment mechanism includes a sliding block, on which two sets of guide blocks are symmetrically fixed, the two sets of guide blocks being integrally formed with the sliding block. A limiting groove is formed on the base plate between the left and right pulleys, and guide grooves are formed on both sides of the limiting groove. The sliding block is slidably mounted in the limiting groove through the cooperation of the guide block and the guide groove. The upper and lower ends of the guide block are horizontal with the upper and lower ends of the base plate. A tension pulley is rotatably mounted on the guide block. A slot is formed on the base plate next to the limiting groove, and an adjusting screw is rotatably mounted on the limiting groove and the slot. A screw hole is passed through the middle of the sliding block, and the sliding block is screwed onto the adjusting screw through the screw hole for adjustment. A worm gear is fixedly sleeved on the lead screw, and the worm gear is in a slot. Support plates are symmetrically fixedly connected to both sides of the bottom of the slot. A worm is rotatably installed on the two sets of support plates. An internal hexagonal nut is fixedly installed on the right end of the worm. The worm meshes with the worm gear. The locking mechanism includes two sets of toothed pressure plates. Two sets of sliding grooves are symmetrically opened at the bottom end of the base plate and communicate with the two sets of guide grooves. Two sets of guide posts are symmetrically fixed at the bottom end of the two sets of guide blocks. The two sets of toothed pressure plates are slidably fitted on the two sets of guide posts on the left and the two sets of guide posts on the right. An adjusting screw is rotatably connected to the middle of the bottom end of the two sets of guide blocks. The guide posts and adjusting screws extend from the sliding grooves. The two sets of toothed pressure plates are screwed onto the two sets of adjusting screws. A knob is fixedly installed at the bottom end of the two sets of adjusting screws. A rack is fixedly connected to both sides of the two sets of sliding grooves at the bottom end of the base plate. The two sets of knobs mesh with the two sets of racks on the left and the two sets of racks on the right, respectively.

[0007] Preferably, the bottom ends of all four sets of guide columns are fixedly connected to limit blocks, and the limit blocks are integrally formed with the guide columns.

[0008] Preferably, both sets of knobs have multiple sets of anti-slip protrusions fixedly arranged in a circular array on their outer walls.

[0009] Preferably, both the toothed pressure plate and the toothed rack are made of cast steel and have undergone carburizing heat treatment.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the belt is fitted onto the left pulley, right pulley, and tension pulley. Initially, the toothed pressure plate presses against the rack, maintaining engagement with it. When the belt becomes loose, the adjusting screw is turned counterclockwise by the knob, causing it to slide the toothed pressure plate downwards along the guide post, thus disengaging it from the rack. Then, a hex wrench is inserted into the internal hex nut, and the worm gear is turned clockwise. This causes the worm gear to engage with the worm wheel, rotating the adjusting screw. The adjusting screw then moves the sliding block backwards, causing the sliding block to move the tension pulley backwards. The tensioning pulley tensions the belt. Then, by turning the adjusting screw clockwise using the knob, the toothed pressure plate slides upward along the guide post, re-engaging with the rack. The meshing of the worm gear and worm has a self-locking effect, ensuring that the sliding block will not move after the tensioning pulley is adjusted. Furthermore, the tight engagement of the toothed pressure plate and rack further locks the sliding block, ensuring its stability. This effectively prevents the sliding block from slipping, thus preventing the tensioning pulley from moving during operation, avoiding any impact on the belt tension, preventing the adjusted belt from becoming loose, and improving stability. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the bottom isometric structure of this utility model;

[0013] Figure 3 This is a partial bottom isometric structural diagram of this utility model;

[0014] Figure 4 This is a partial isometric structural schematic diagram of this utility model;

[0015] Figure 5 This is a utility model Figure 4 A schematic diagram of the bottom isometric structure;

[0016] The following are labels in the attached diagram: 1. Base plate; 2. Left pulley; 3. Right pulley; 4. Sliding block; 5. Guide block; 6. Tensioning pulley; 7. Adjusting screw; 8. Worm gear; 9. Support plate; 10. Worm; 11. Socket head cap nut; 12. Guide post; 13. Toothed pressure plate; 14. Adjusting screw; 15. Knob; 16. Rack; 17. Limiting block; 18. Anti-slip protrusion. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope. Example

[0018] Please see Figures 1-5This utility model discloses a tension adjustment device for tire production, comprising a base plate 1. A left pulley 2 and a right pulley 3 are symmetrically rotatably mounted on the top of the base plate 1. Two sets of guide blocks 5 are symmetrically fixed on a sliding block 4, integrally formed with the sliding block 4. A limiting groove is formed on the base plate 1 between the left pulley 2 and the right pulley 3. Guide grooves are formed on both sides of the limiting groove. The sliding block 4 is slidably mounted in the limiting groove through the cooperation of the guide blocks 5 and the guide grooves. The upper and lower ends of the guide blocks 5 are horizontal to the upper and lower ends of the base plate 1. A tension pulley 6 is rotatably mounted on the guide blocks 5. A slot is formed on the base plate 1 next to the limiting groove. An adjusting screw 7 is rotatably mounted on the limiting groove and the slot. A screw hole is passed through the middle of the sliding block 4. The sliding block 4 is screwed onto the adjusting screw 7 through the screw hole. A worm gear 8 is fixedly mounted on the adjusting screw 7, located in the slot. Two... The base plate 1 is symmetrically fixedly connected with two sets of support plates 9. Worms 10 are rotatably installed on the two sets of support plates 9. The right end of the worm 10 is fixedly provided with an internal hexagonal nut 11. The worm 10 meshes with the worm wheel 8. The bottom end of the base plate 1 is symmetrically provided with two sets of sliding grooves that communicate with the two sets of guide grooves. The bottom ends of the two sets of guide blocks 5 are symmetrically fixed with two sets of guide posts 12. The two sets of toothed pressure plates 13 are slidably fitted on the two sets of guide posts 12 on the left and the two sets of guide posts 12 on the right. The bottom ends of the two sets of guide blocks 5 are rotatably connected with adjusting screws 14. The guide posts 12 and adjusting screws 14 extend out of the sliding grooves. The two sets of toothed pressure plates 13 are screwed onto the two sets of adjusting screws 14. The bottom ends of the two sets of adjusting screws 14 are fixedly provided with knobs 15. The bottom ends of the base plate 1 are fixedly connected with racks 16 on both sides of the two sets of sliding grooves. The two sets of knobs 15 mesh with the two sets of racks 16 on the left and the two sets of racks 16 on the right, respectively.In use, the belt is fitted onto the left pulley 2, right pulley 3, and tension pulley 6. Initially, the toothed pressure plate 13 presses against the rack 16, maintaining engagement. When the belt becomes loose, the adjusting screw 14 is turned counterclockwise by the knob 15, causing the adjusting screw 14 to slide the toothed pressure plate 13 downwards along the guide post 12, thus disengaging the toothed pressure plate 13 from the rack 16. Then, a hex wrench is inserted into the internal hex nut 11, and the worm gear 10 is turned clockwise. The worm gear 10, through engagement with the worm wheel 8, drives the adjusting screw 7 to rotate, causing the adjusting screw 7 to move the sliding block 4 backwards. This, in turn, causes the sliding block 4 to move the tension pulley 6 backwards, thus moving the tension pulley 6 backwards. Tension the belt, then turn the adjusting screw 14 clockwise using knob 15. This causes the toothed pressure plate 13 to slide upwards along the guide post 12, re-engaging it tightly with the rack 16. The meshing of the worm gear 8 and worm 10 has a self-locking effect, ensuring that the sliding block 4 will not move after the tension pulley 6 is adjusted. Furthermore, the tight engagement of the toothed pressure plate 13 and rack 16 further locks the sliding block 4, ensuring its stability. This effectively prevents the sliding block from slipping, thus preventing the tension pulley from moving during operation, avoiding any impact on belt tension, preventing the adjusted belt from becoming loose, and improving stability.

[0019] The bottom ends of the four sets of guide posts 12 are all fixedly connected to limit blocks 17, which are integrally formed with the guide posts 12. By setting the limit blocks 17, the movement of the toothed pressure plate 13 can be limited, effectively preventing the toothed pressure plate 13 from separating from the guide posts 12 when it moves downward.

[0020] Both sets of knobs 15 have multiple sets of anti-slip protrusions 18 fixedly arranged in a circular array on their outer walls; by setting the anti-slip protrusions 18, the hand is less likely to slip when rotating the knobs 15.

[0021] Both the toothed pressure plate 13 and the rack 16 are made of cast steel and have undergone carburizing heat treatment. The use of cast steel and the carburizing heat treatment can improve the structural strength and wear resistance of the toothed pressure plate 13 and the rack 16, making them less prone to tooth breakage.

[0022] This utility model discloses a tension adjustment device for tire production. Its working principle is as follows: During use, a belt is fitted onto the left pulley 2, right pulley 3, and tension pulley 6. Initially, the toothed pressure plate 13 presses against the rack 16, maintaining engagement. When the belt becomes loose, the adjusting screw 14 is rotated counterclockwise by the knob 15. This causes the adjusting screw 14 to slide the toothed pressure plate 13 downwards along the guide post 12, thereby disengaging the toothed pressure plate 13 from the rack 16. Then, a hex wrench is inserted into the internal hex nut 11, and the worm gear 10 is rotated clockwise. This causes the worm gear 10 to engage with the worm wheel 8, driving the adjusting screw 7 to rotate. The adjustment screw 7 moves the sliding block 4 backward, causing the sliding block 4 to move the tension pulley 6 backward, thus tensioning the belt. Then, the adjustment screw 14 is rotated clockwise by the knob 15, causing the toothed pressure plate 13 to slide upward along the guide post 12, so that the toothed pressure plate 13 re-engages tightly with the rack 16. The meshing of the worm gear 8 and the worm 10 has a self-locking effect, so that the sliding block 4 will not move after the position of the tension pulley 6 is adjusted. Furthermore, the tight meshing of the toothed pressure plate 13 and the rack 16 further locks the sliding block 4, ensuring its stability.

[0023] The tension adjustment device for tire production of this utility model has common mechanical methods in terms of installation, connection or setting. It can be implemented as long as it can achieve its beneficial effect.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tension adjustment device for tire production, comprising a base plate (1), wherein a left pulley (2) and a right pulley (3) are symmetrically rotatably mounted on the top of the base plate (1), characterized in that, It also includes a tension adjustment mechanism and a locking mechanism; The tension adjustment mechanism includes a sliding block (4), on which two sets of guide blocks (5) are fixedly fixed symmetrically. The two sets of guide blocks (5) are integrally formed with the sliding block (4). A limiting groove is opened on the base plate (1) between the left pulley (2) and the right pulley (3). Guide grooves are opened on both sides of the limiting groove. The sliding block (4) is slidably installed in the limiting groove through the cooperation of the guide block (5) and the guide groove. The upper and lower ends of the guide block (5) are horizontal with the upper and lower ends of the base plate (1). A tensioning pulley is rotatably mounted on the guide block (5). 6) A slot is provided on the substrate (1) next to the limiting slot. An adjusting screw (7) is rotatably installed on the limiting slot and the slot. A screw hole is provided through the middle of the sliding block (4). The sliding block (4) is screwed onto the adjusting screw (7) through the screw hole. A worm wheel (8) is fixedly sleeved on the adjusting screw (7). The worm wheel (8) is in the slot. Support plates (9) are symmetrically fixedly connected on both sides of the bottom of the slot. A worm (10) is rotatably installed on the two sets of support plates (9). An internal hexagonal nut (11) is fixedly provided on the right end of the worm (10). The worm (10) meshes with the worm wheel (8). The locking mechanism includes two sets of toothed pressure plates (13) for locking the sliding block (4).

2. The tension adjustment device for tire production as described in claim 1, characterized in that, The bottom end of the substrate (1) is symmetrically provided with two sets of sliding grooves connected to the two sets of guide grooves. The bottom ends of the two sets of guide blocks (5) are symmetrically fixed with two sets of guide posts (12). The two sets of toothed pressure plates (13) are each slidably fitted on the two sets of guide posts (12) on the left and the two sets of guide posts (12) on the right. The bottom ends of the two sets of guide blocks (5) are rotatably connected with adjusting screws (14). The guide posts (12) and adjusting screws (14) extend out from the sliding grooves. The two sets of toothed pressure plates (13) are respectively screwed onto the two sets of adjusting screws (14). The bottom ends of the two sets of adjusting screws (14) are fixedly provided with knobs (15). The bottom ends of the substrate (1) are fixedly connected with racks (16) on both sides of the two sets of sliding grooves. The two sets of knobs (15) are respectively engaged with the two sets of racks (16) on the left and the two sets of racks (16) on the right.

3. The tension adjustment device for tire production as described in claim 2, characterized in that, The bottom ends of the four guide posts (12) are all fixedly connected to limit blocks (17), and the limit blocks (17) and guide posts (12) are integrally formed.

4. The tension adjustment device for tire production as described in claim 3, characterized in that, Both sets of knobs (15) have multiple sets of anti-slip protrusions (18) fixedly arranged in a ring array on their outer walls.

5. The tension adjustment device for tire production as described in claim 4, characterized in that, The toothed pressure plate (13) and the toothed rack (16) are both made of cast steel and have undergone carburizing heat treatment.

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