Molding drum with elastic guide device

Abstract

The utility model relates to the technical field of tire building drums, in particular to a building drum with an elastic guide device, which comprises a main shaft, a guide disc is sleeved on the outer wall of the main shaft, a movable pressing block is lapped on one side of the guide disc, and four corners of the movable pressing block are in threaded connection with shaft shoulder screws. A rectangular spring is connected to the outer surface of the shaft shoulder screw in a sleeving mode, a guide block is slidably connected to the interior of the movable pressing block, a drum plate is fixedly connected to the outer side of the guide block, and a right connecting rod is movably connected to one side of the guide block. The utility model has the advantages that the guide disc is additionally arranged, so that the possible left-right shaking phenomenon in the expansion and contraction process is effectively prevented. By means of the design, the elastic characteristic of the rectangular spring is utilized, the variable guiding function of the movable pressing block is achieved, uncertain guiding resistance in the expanding and shrinking process is balanced, stability and flexibility in the expanding and shrinking process are guaranteed, and the production efficiency of solid tires and the product quality of finished tires are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of tire forming drum technology, and in particular to a forming drum with an elastic guiding device. Background Technology

[0002] During the tire blank forming process, the tire components need to be attached to the tire forming drum in sequence by rotating the tire forming drum. Since a large expansion and contraction ratio is required when producing solid tire blanks, and traditional equipment does not have a guide plate, the shaking is obvious.

[0003] Therefore, this utility model proposes a molding drum with an elastic guiding device. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] The purpose of this invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a molding drum with an elastic guiding device.

[0006] The purpose of this utility model is achieved through the following technical solution: a forming drum with an elastic guiding device, comprising a main shaft, a guide plate sleeved on the outer wall of the main shaft, a movable pressure block overlapping one side of the guide plate, shaft shoulder screws threaded at the four corners of the movable pressure block, a rectangular spring sleeved on the outer surface of the shaft shoulder screws, a guide block slidably connected inside the movable pressure block, a drum plate fixedly connected to the outer side of the guide block, a right connecting rod movably connected to one side of the guide block, a fixed seat rotatably connected to the other end of the right connecting rod, a rear end fixedly connected to one side of the fixed seat, a left connecting rod rotatably connected to one side of the right connecting rod, a left connecting rod rotatably connected to the inner side of the drum plate at one end, a slide block rotatably connected to the other end of the left connecting rod, a connecting key fixedly connected to one side of the slide block, a pull rod provided inside the main shaft, the pull rod fixedly connected to the connecting key, a linkage bearing fixedly connected to the other end of the pull rod, a connecting shaft fixedly connected inside the linkage bearing, and a cylinder fixedly connected to one end of the connecting shaft.

[0007] Preferably, the outer wall of the spindle is provided with a rotary bearing, and a mounting base is fixedly connected to the outside of the spindle through the rotary bearing. A cylinder seat is fixedly connected to one side of the mounting base, and a cylinder is provided on the inner side of the cylinder seat. The output end of the cylinder is fixedly connected to the connecting shaft.

[0008] By adopting the above technical solution, the starting cylinder can drive the connecting rod to move linearly via the connecting shaft.

[0009] Preferably, a fixing block is fixedly connected to one side of the inner side of the drum plate, a second pin is fixedly connected inside the fixing block, a third pin is fixedly connected to one side of the slide, and the left and right ends of the left connecting rod are respectively sleeved with the second pin and the third pin.

[0010] By adopting the above technical solution, the change in the intersection angle between the left and right connecting rods can drive the drum plate to push outward or retract inward.

[0011] Preferably, an adjustment groove is provided on one side of the guide block, a first pin is provided inside the adjustment groove, a right connecting rod is movably connected to the outside of the first pin, a fourth pin is fixedly connected to one side of the fixed seat, and the other end of the right connecting rod is sleeved with the fourth pin.

[0012] By adopting the above technical solution, the setting of the adjustment groove can eliminate the situation where the left and right connecting rods cannot change angle, thereby facilitating the adjustment of the drum's contraction.

[0013] Preferably, the guide block is movably connected between the movable pressure block and the guide disk, and there are several movable pressure blocks, which are arranged in a circumferential array on one side of the guide disk.

[0014] By adopting the above technical solution, the guide block slides on the moving pressure block, and the moving pressure block plays a guiding role during the expansion and contraction of the forming drum.

[0015] Preferably, a fifth pin is fixedly connected to the middle position of the right connecting rod, and the left connecting rod is rotatably connected to the right connecting rod through the fifth pin. The dimensions of the left connecting rod are the same as those of the right connecting rod.

[0016] By adopting the above technical solution, the fifth pin can movably connect the left and right connecting rods.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This forming drum with an elastic guide device incorporates a guide disc with an elastic structure. This guide disc not only provides guidance but also prevents jamming after prolonged use, effectively preventing lateral swaying during expansion and contraction. This design utilizes the elastic properties of a rectangular spring to achieve variable guiding functionality for the movable pressure block, balancing the uncertain resistance during expansion and contraction, ensuring smoothness and flexibility, and significantly improving the production efficiency and quality of solid tires. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention;

[0020] Figure 2 This is a partial sectional view of the present invention;

[0021] Figure 3 This is a partial sectional view of the present invention;

[0022] Figure 4 This is a schematic diagram of the right connecting rod of this utility model.

[0023] In the diagram: 1-spindle, 2-mounting seat, 3-cylinder, 4-cylinder seat, 5-connecting shaft, 6-guide plate, 7-slide, 8-fixed seat, 9-left connecting rod, 10-right connecting rod, 11-pull rod, 12-guide block, 13-drum plate, 14-rear end, 15-linkage bearing, 16-rotary bearing, 17-connecting key, 18-first pin, 19-rectangular spring, 20-movable pressure block, 21-shaft shoulder screw. Detailed Implementation

[0024] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0025] like Figure 1-4 As shown, a forming drum with an elastic guide device includes a main shaft 1. A guide disc 6 is sleeved on the outer wall of the main shaft 1. A movable pressure block 20 overlaps one side of the guide disc 6. Shoulder screws 21 are threaded at the four corners of the movable pressure block 20. A rectangular spring 19 is sleeved on the outer surface of the shoulder screw 21. A guide block 12 is slidably connected inside the movable pressure block 20. A drum plate 13 is fixedly connected to the outer side of the guide block 12. A right connecting rod 10 is movably connected to one side of the guide block 12. A fixed seat 8 is rotatably connected to the other end of the right connecting rod 10. The fixed base 8 is fixedly connected to the rear end 14 on one side. The right connecting rod 10 is rotatably connected to the left connecting rod 9 on one side. One end of the left connecting rod 9 is rotatably connected to the inner side of the drum plate 13. The other end of the left connecting rod 9 is rotatably connected to the slide 7. The slide 7 is fixedly connected to the connecting key 17 on one side. The main shaft 1 is provided with a pull rod 11 inside. The pull rod 11 is fixedly connected to the connecting key 17. The other end of the pull rod 11 is fixedly connected to the linkage bearing 15. The linkage bearing 15 is fixedly connected to the connecting shaft 5 inside. One end of the connecting shaft 5 is fixedly connected to the cylinder 3.

[0026] By adding a guide plate, the above-mentioned design effectively prevents lateral swaying that may occur during expansion and contraction. This design utilizes the elastic properties of a rectangular spring to achieve a variable guiding function for the movable pressure block, balancing the uncertain resistance during expansion and contraction, ensuring the smoothness and flexibility of the process, and significantly improving the production efficiency of solid tires and the quality of finished tires.

[0027] As a preferred technical solution of this utility model, a rotary bearing 16 is provided on the outer wall of the main shaft 1, and a mounting base 2 is fixedly connected to the outside of the main shaft 1 through the rotary bearing 16. A cylinder seat 4 is fixedly connected to one side of the mounting base 2, and a cylinder 3 is provided on the inner side of the cylinder seat 4. The output end of the cylinder 3 is fixedly connected to the connecting shaft 5.

[0028] As a preferred technical solution of this utility model, a fixing block is fixedly connected to one side of the inner side of the drum plate 13, a second pin is fixedly connected inside the fixing block, a third pin is fixedly connected to one side of the slide block 7, and the left and right ends of the left connecting rod 9 are respectively sleeved with the second pin and the third pin.

[0029] As a preferred technical solution of this utility model, an adjustment groove is provided on one side of the guide block 12, a first pin 18 is provided inside the adjustment groove, a right connecting rod 10 is movably connected to the outside of the first pin 18, a fourth pin is fixedly connected to one side of the fixed seat 8, and the other end of the right connecting rod 10 is sleeved with the fourth pin.

[0030] As a preferred technical solution of this utility model, the guide block 12 is movably connected between the movable pressure block 20 and the guide disk 6. There are several movable pressure blocks 20, and the several movable pressure blocks 20 are installed in a circumferential array on one side of the guide disk 6.

[0031] As a preferred technical solution of this utility model, a fifth pin is fixedly connected to the middle position of the right connecting rod 10, and the left connecting rod 9 is rotatably connected to the right connecting rod 10 through the fifth pin. The dimensions of the left connecting rod 9 are the same as those of the right connecting rod 10.

[0032] The working process of this utility model is as follows:

[0033] S1. When the cylinder 3 is inflated and pushed forward, the cylinder 3 pushes the connecting shaft 5, the connecting shaft 5 pushes the pull rod 11 through the linkage bearing 15, the pull rod 11 drives the slide 7 to move axially, the slide 7 drives the left connecting rod 9 and the right connecting rod 10 to perform hinge action, the two connecting rods drive the drum plate 13 to move radially, thereby realizing the opening action, at this time the forming drum begins to adhere the rubber material;

[0034] S2. After bonding is completed, the forming drum begins to shrink. During shrinkage, the cylinder 3 inflates and drives the connecting shaft 5 and the pull rod 11 to reset. Under the action of the pull rod 11, the slide 7 moves axially and drives the two connecting rods to move radially. The connecting rods drive the drum plate 13 to shrink radially. After the drum plate 13 shrinks, the solid tire blank can be smoothly removed from the forming drum to complete the bonding process.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding drum with an elastic guiding device, characterized in that: Includes a main shaft (1), with a guide plate (6) sleeved on the outer wall of the main shaft (1). A movable pressure block (20) overlaps one side of the guide plate (6). A shoulder screw (21) is threaded at the four corners of the movable pressure block (20). A rectangular spring (19) is sleeved on the outer surface of the shoulder screw (21). A guide block (12) is slidably connected inside the movable pressure block (20). A drum plate (13) is fixedly connected to the outer side of the guide block (12). A right connecting rod (10) is movably connected to one side of the guide block (12). A fixed seat (8) is rotatably connected to the other end of the right connecting rod (10). One side of the fixed seat (8) is fixed. The rear end (14) is connected. The right connecting rod (10) is rotatably connected to the left connecting rod (9) on one side. One end of the left connecting rod (9) is rotatably connected to the inner side of the drum plate (13). The other end of the left connecting rod (9) is rotatably connected to the slide (7). One side of the slide (7) is fixedly connected to the connecting key (17). The main shaft (1) is provided with a pull rod (11). The pull rod (11) is fixedly connected to the connecting key (17). The other end of the pull rod (11) is fixedly connected to the linkage bearing (15). The linkage bearing (15) is fixedly connected to the connecting shaft (5). One end of the connecting shaft (5) is fixedly connected to the cylinder (3).

2. A molding drum with an elastic guide device according to claim 1, characterized in that: A rotary bearing (16) is provided on the outer wall of the main shaft (1). A mounting base (2) is fixedly connected to the outside of the main shaft (1) through the rotary bearing (16). A cylinder seat (4) is fixedly connected to one side of the mounting base (2). A cylinder (3) is provided on the inner side of the cylinder seat (4). The output end of the cylinder (3) is fixedly connected to the connecting shaft (5).

3. A molding drum with an elastic guide device according to claim 1, characterized in that: A fixing block is fixedly connected to one side of the inner side of the drum plate (13), and a second pin is fixedly connected inside the fixing block. A third pin is fixedly connected to one side of the slide (7), and the left and right ends of the left connecting rod (9) are respectively sleeved with the second pin and the third pin.

4. A molding drum with an elastic guide device according to claim 1, characterized in that: An adjustment groove is provided on one side of the guide block (12), and a first pin (18) is provided inside the adjustment groove. A right connecting rod (10) is movably connected to the outside of the first pin (18). A fourth pin is fixedly connected to one side of the fixed seat (8), and the other end of the right connecting rod (10) is sleeved with the fourth pin.

5. A molding drum with an elastic guide device according to claim 1, characterized in that: The guide block (12) is movably connected between the movable pressure block (20) and the guide disk (6). There are several movable pressure blocks (20), and several movable pressure blocks (20) are arranged in a circumferential array on one side of the guide disk (6).

6. A molding drum with an elastic guide device according to claim 1, characterized in that: The right connecting rod (10) is fixedly connected to the middle position of the fifth pin, and the left connecting rod (9) is rotatably connected to the right connecting rod (10) through the fifth pin. The size of the left connecting rod (9) is the same as that of the right connecting rod (10).

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