Improved tire building and building drum

Abstract

The utility model relates to pneumatic tire production technical field discloses an improved tire forming and adhering drum, including drum body, recessed groove cylinder and connecting disc, the inside of drum body is provided with fixed establishment, the fixed establishment includes first two -way threaded rod and second two -way threaded rod, the periphery of drum body inside all are provided with the removal groove, the upper end and the lower end of first two -way threaded rod rod body outer wall all are threadedly connected with first L shape piece, the both sides of second two -way threaded rod rod body outer wall all are threadedly connected with second L shape piece, first L shape piece and second L shape piece all slide in the inside of removal groove. In the utility model, through first L shape piece and second L shape piece in fixed establishment and the clamping connection of clamping groove, make recessed groove cylinder and drum body fixed, and screw the first two -way threaded rod and second two -way threaded rod can drive first L shape piece and second L shape piece to remove the clamping state of clamping groove, and the recessed groove cylinder is conveniently disassembled separately.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic tire manufacturing technology, and in particular to an improved tire molding and bonding drum. Background Technology

[0002] Rubber is the core material of tires, and it is divided into natural rubber and synthetic rubber. Natural rubber has excellent low-temperature flexibility and comprehensive performance, while synthetic rubber is used to improve the wear resistance and heat resistance of tires. The tire forming and bonding drum is a key equipment component used to form the tire blank in the tire manufacturing process. It is mainly used to assist in the bonding, shaping and rolling of tire materials.

[0003] However, even if the tire diameter is uniform, the required width and thickness of the sidewall reinforcement rubber will still vary due to the different aspect ratios of the tires. This results in different sizes of grooved tubes required for the production of tires of different specifications. Currently, most tire molding and bonding drums on the market use fixed grooved tubes, which are difficult to disassemble individually. This makes it inconvenient for workers to replace them according to production needs, increases the difficulty of operation for workers, and reduces production efficiency.

[0004] Therefore, those skilled in the art have provided an improved tire forming and bonding drum to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an improved tire forming and bonding drum. The first L-shaped block and the second L-shaped block in the fixing mechanism are connected to the slot to fix the grooved cylinder to the drum body. Twisting the first bidirectional threaded rod and the second bidirectional threaded rod can drive the first L-shaped block and the second L-shaped block to release the slot, which makes it easy to disassemble the grooved cylinder separately.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An improved tire forming and bonding drum includes a drum body, a grooved cylinder, and a connecting plate. The drum body has a fixing mechanism inside, which includes a first bidirectional threaded rod and a second bidirectional threaded rod. Movable grooves are formed around the inside of the drum body. The upper and lower ends of the outer wall of the first bidirectional threaded rod are threaded with a first L-shaped block, and the two sides of the outer wall of the second bidirectional threaded rod are threaded with a second L-shaped block. The first and second L-shaped blocks slide inside the movable grooves. The inner wall of the grooved cylinder has a retaining groove around the front end. The first and second L-shaped blocks penetrate the drum body and are engaged with the retaining grooves. Guide blocks are fixedly connected around the rear end of the outer wall of the drum body.

[0008] The above technical solution allows the drum body to be fixed by engaging the two first L-shaped blocks and the two second L-shaped blocks with the slots opened on the inner wall of the grooved cylinder. Twisting the first bidirectional threaded rod and the second bidirectional threaded rod can disengage the first L-shaped blocks and the second L-shaped blocks from the slots, thereby allowing the grooved cylinder to be removed separately.

[0009] Furthermore, a plurality of fixing bolts are provided at the edge of the rear end of the outer wall of the connecting disc, and the rear ends of the fixing bolts all penetrate the connecting disc and are threadedly connected to the drum body.

[0010] The above technical solution allows the connecting plate to be separated from the drum body by a fixing bolt installed on the connecting plate, which passes through the connecting plate and is threadedly connected to the drum body. This enables the drum body to be maintained or replaced after the fixing bolt is unscrewed.

[0011] Furthermore, multiple connection holes are provided at the edge of the outer wall of the front end of the connecting disc, and a fitting groove adapted to the tire is provided along the axial direction on the outer wall of the grooved cylinder.

[0012] Through the above technical solution, the connecting plate can be fixed to the drive device by multiple bolts and nuts through the connecting holes opened on the connecting plate. The drive device can rotate the entire bonding drum. The size, depth and other parameters of the bonding groove set on the outer wall of the groove cylinder can be changed according to the tire to be processed.

[0013] Furthermore, the middle part of the outer wall of both the first and second bidirectional threaded rods is rotatably connected to the drum body;

[0014] By using the above technical solution, the first bidirectional threaded rod and the second bidirectional threaded rod rotate on the drum body, and are respectively threadedly connected to the first L-shaped block and the second L-shaped block, so that the first L-shaped block and the second L-shaped block can move inside the moving groove, thereby changing the situation where the first L-shaped block and the second L-shaped block protrude from the surface of the drum body.

[0015] Furthermore, the upper and lower ends of the first bidirectional threaded rod both penetrate the drum body and are fixedly connected to a first hexagonal block, and both sides of the second bidirectional threaded rod both penetrate the drum body and are fixedly connected to a second hexagonal block;

[0016] Through the above technical solution, by fixing the first hexagonal block and the second hexagonal block to the first bidirectional threaded rod and the second bidirectional threaded rod, the operator can use tools such as wrenches to rotate the first bidirectional threaded rod and the second bidirectional threaded rod, thereby causing the first L-shaped block and the second L-shaped block to release or restore the engagement state with the slot.

[0017] Furthermore, the outer walls of both the first L-shaped block and the second L-shaped block on the side away from the center of the drum body are chamfered, and the edge of the outer wall at the rear end of the guide block is chamfered;

[0018] Through the above technical solution, by setting the chamfer on the outer wall of the first L-shaped block and the second L-shaped block on the side away from the center of the drum body, the first L-shaped block and the second L-shaped block can be easily inserted into the slot when the first bidirectional threaded rod and the second bidirectional threaded rod extend out of the surface of the drum body, forming a snap-fit ​​state. The chamfer set on the guide block can provide a certain guidance when the guide block slides into the guide groove, allowing the guide block to be easily inserted into the guide groove.

[0019] Furthermore, guide grooves are provided around the inner ring of the outer wall at the front end of the grooved cylinder, and the guide grooves are slidably connected to guide blocks;

[0020] By using the above technical solution, the four guide blocks fixedly connected to the drum body are slid into the guide grooves opened on the grooved cylinder before the first L-shaped block and the second L-shaped block are engaged with the slot. This allows the first L-shaped block and the second L-shaped block to be aligned with the slot before engagement. At the same time, the cooperation between the guide blocks and the guide grooves can share the rotational load on the first L-shaped block and the second L-shaped block when they rotate, thus preventing damage to the first L-shaped block, the second L-shaped block and the slot.

[0021] This utility model has the following beneficial effects:

[0022] This utility model proposes an improved tire forming and bonding drum. Two first L-shaped blocks and two second L-shaped blocks in the fixing mechanism are engaged with slots opened on the inner wall of the grooved cylinder, thus fixing it to the drum body. Tightening the first and second bidirectional threaded rods releases the first and second L-shaped blocks from the slots, allowing the grooved cylinder to be removed independently. This facilitates replacement by workers according to production needs, reducing operational difficulty and improving production efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of an improved tire forming and bonding drum proposed in this utility model;

[0024] Figure 2 This is an exploded view of an improved tire molding and bonding drum proposed in this utility model;

[0025] Figure 3 This is a side sectional view of an improved tire molding and bonding drum proposed in this utility model;

[0026] Figure 4 This is a top sectional view of an improved tire molding and bonding drum proposed in this utility model;

[0027] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Drum body; 2. Groove cylinder; 3. Connecting plate; 4. Connecting hole; 5. Fixing mechanism; 501. Moving groove; 502. First bidirectional threaded rod; 503. First L-shaped block; 504. First hexagonal block; 505. Second bidirectional threaded rod; 506. Second L-shaped block; 507. Second hexagonal block; 508. Slot; 6. Fixing bolt; 7. Fitting groove; 8. Guide block; 9. Guide groove. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-5 This utility model provides a specific implementation method:

[0032] An improved tire forming and bonding drum includes a drum body 1, a grooved cylinder 2, and a connecting plate 3. The drum body 1 is provided with a fixing mechanism 5, which includes a first bidirectional threaded rod 502 and a second bidirectional threaded rod 505. Movable grooves 501 are provided around the inside of the drum body 1. The upper and lower ends of the outer wall of the first bidirectional threaded rod 502 are threadedly connected to a first L-shaped block 503. The two sides of the outer wall of the second bidirectional threaded rod 505 are threadedly connected to a second L-shaped block 506. The first L-shaped block 503 and the second L-shaped block 506 slide inside the movable grooves 501. The inner wall of the grooved cylinder 2 is provided with a retaining groove 508 around the front end. The first L-shaped block 503 and the second L-shaped block 506 pass through the drum body 1 and are engaged with the retaining groove 508. Guide blocks 8 are fixedly connected around the rear end of the outer wall of the drum body 1.

[0033] The two first L-shaped blocks 503 and the two second L-shaped blocks 506 in the fixing mechanism 5 are engaged with the slots 508 opened on the inner wall of the grooved cylinder 2, which can fix it on the drum body 1. Tightening the first bidirectional threaded rod 502 and the second bidirectional threaded rod 505 can drive the first L-shaped blocks 503 and the second L-shaped blocks 506 to release the engagement with the slots 508, so that the grooved cylinder 2 can be removed separately. This makes it convenient for workers to replace it according to production needs, reduces the difficulty of operation for workers, and improves production efficiency.

[0034] Multiple fixing bolts 6 are provided at the rear edge of the outer wall of the connecting disc 3. The rear ends of the fixing bolts 6 all penetrate the connecting disc 3 and are threadedly connected to the drum body 1. By having the fixing bolts 6 on the connecting disc 3 penetrate the connecting disc 3 and be threadedly connected to the drum body 1, the connecting disc 3 can be separated from the drum body 1 after the fixing bolts 6 are unscrewed, so that the drum body 1 can be maintained or replaced. Multiple connecting holes 4 are provided at the edge of the front outer wall of the connecting disc 3. The outer wall of the grooved cylinder 2 is provided with a fitting groove 7 adapted to the tire along its axial direction. The connecting holes 4 on the connecting disc 3 can be used with multiple bolts and nuts to fix the connecting disc 3 to the drive device. The drive device can be used to rotate the entire fitting drum. The fitting groove 7 on the outer wall of the grooved cylinder 2... The size, depth, and other parameters are changed according to the tire to be processed. The middle part of the outer wall of the first bidirectional threaded rod 502 and the second bidirectional threaded rod 505 are rotatably connected to the drum body 1. By allowing the first bidirectional threaded rod 502 and the second bidirectional threaded rod 505 to rotate on the drum body 1, and by using them to be threadedly connected to the first L-shaped block 503 and the second L-shaped block 506 respectively, the first L-shaped block 503 and the second L-shaped block 506 can move inside the moving groove 501, thereby changing the situation where the first L-shaped block 503 and the second L-shaped block 506 protrude from the surface of the drum body 1. The upper and lower ends of the first bidirectional threaded rod 502 penetrate the drum body 1 and are fixedly connected to the first hexagonal block 504. Both sides of the second bidirectional threaded rod 505 penetrate the drum body 1. A second hexagonal block 507 is fixedly connected to the first hexagonal block 504 and the second hexagonal block 507. By using a wrench or other tools, the operator can rotate the first and second hexagonal blocks 502 and 505, thereby causing the first L-shaped block 503 and the second L-shaped block 506 to release or restore their engagement with the slot 508. The outer walls of the first L-shaped block 503 and the second L-shaped block 506 on the side away from the center of the drum body 1 are chamfered. The edge of the outer wall at the rear end of the guide block 8 is also chamfered. The chamfers on the outer walls of the first L-shaped block 503 and the second L-shaped block 506 on the side away from the center of the drum body 1 allow the first L-shaped block 503 and the second L-shaped block 506 to release or restore their engagement with the slot 508. When the two L-shaped blocks 506 extend out of the surface of the drum body 1 by the first bidirectional threaded rod 502 and the second bidirectional threaded rod 505, they can be easily inserted into the slot 508 to form a snap-fit. The chamfer on the guide block 8 provides some guidance when the guide block 8 slides into the guide groove 9, allowing the guide block 8 to easily insert into the guide groove 9. Guide grooves 9 are opened around the inner ring of the outer wall at the front end of the grooved cylinder 2. The guide grooves 9 are slidably connected to the guide blocks 8. By sliding the four guide blocks 8 fixedly connected to the drum body 1 into the guide grooves 9 opened on the grooved cylinder 2 before the first L-shaped block 503 and the second L-shaped block 506 are snapped into the slot 508, the first L-shaped block 503 and the second L-shaped block 506 can be aligned with the slot 508 before snap-fit.Meanwhile, the cooperation between the guide block 8 and the guide groove 9 can share the rotational load on the first L-shaped block 503 and the second L-shaped block 506 during rotation, preventing damage to the first L-shaped block 503, the second L-shaped block 506, and the retaining groove 508.

[0035] Working principle: When using this improved tire forming and bonding drum, the operator first uses multiple bolts and nuts with the connecting plate 3 to install the entire bonding drum onto the drive device. Then, the operator can use tools such as wrenches to rotate the first double-threaded rod 502 and the second double-threaded rod 505 by turning the first double-threaded rod 504 and the second double-threaded rod 507. The first double-threaded rod 502 and the second double-threaded rod 505 are threadedly connected to the first L-shaped block 503 and the second L-shaped block 506, which drives the first L-shaped block 503 and the second L-shaped block 506 to release the locking state of the slot 508. Then, the operator can remove the grooved cylinder 2 from the drum body 1 along the guide groove 9 and replace it with a suitable grooved cylinder 2 according to the processing needs.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0038] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0039] 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 specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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. An improved tire forming and bonding drum, comprising a drum body (1), a grooved cylinder (2), and a connecting disc (3), characterized in that: The drum body (1) is provided with a fixing mechanism (5), which includes a first bidirectional threaded rod (502) and a second bidirectional threaded rod (505). The drum body (1) is provided with a moving groove (501) around its interior. The upper and lower ends of the outer wall of the first bidirectional threaded rod (502) are threaded with a first L-shaped block (503). The two sides of the outer wall of the second bidirectional threaded rod (505) are threaded with a second L-shaped block (506). The first L-shaped block (503) and the second L-shaped block (506) slide inside the moving groove (501). The inner wall of the grooved cylinder (2) is provided with a slot (508) around its front end. The first L-shaped block (503) and the second L-shaped block (506) penetrate the drum body (1) and are engaged with the slot (508). The outer wall of the drum body (1) is fixedly connected with a guide block (8) around its rear end.

2. The improved tire forming and bonding drum according to claim 1, characterized in that: Multiple fixing bolts (6) are provided at the edge of the rear end of the outer wall of the connecting disc (3). The rear ends of the fixing bolts (6) all penetrate the connecting disc (3) and are threadedly connected to the drum body (1).

3. The improved tire forming and bonding drum according to claim 1, characterized in that: Multiple connection holes (4) are provided at the edge of the outer wall of the front end of the connecting disc (3), and a fitting groove (7) adapted to the tire is provided on the outer wall of the grooved cylinder (2) along its axial direction.

4. The improved tire forming and bonding drum according to claim 1, characterized in that: The middle part of the outer wall of the first bidirectional threaded rod (502) and the second bidirectional threaded rod (505) are rotatably connected to the drum body (1).

5. An improved tire forming and bonding drum according to claim 1, characterized in that: The upper and lower ends of the first bidirectional threaded rod (502) both penetrate the drum body (1) and are fixedly connected to the first hexagonal block (504). The two sides of the second bidirectional threaded rod (505) both penetrate the drum body (1) and are fixedly connected to the second hexagonal block (507).

6. An improved tire forming and bonding drum according to claim 1, characterized in that: The outer walls of the first L-shaped block (503) and the second L-shaped block (506) on the side away from the center of the drum body (1) are both chamfered, and the edge of the outer wall of the rear end of the guide block (8) is chamfered.

7. An improved tire forming and bonding drum according to claim 1, characterized in that: Guide grooves (9) are provided around the inner ring of the outer wall at the front end of the grooved cylinder (2), and the guide grooves (9) are slidably connected to the guide blocks (8).

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