Tire building drum

Abstract

The utility model discloses a tire building drum which comprises a drum shaft, a first half drum and a second half drum, the first half drum and the second half drum are sleeved at the left end and the right end of the drum shaft, and the outer wall of the second half drum is connected with a limiting disc through a limiting mechanism. The limiting mechanism comprises a positioning groove, a positioning block, a clamping block, a clamping groove, a groove and a pushing mechanism, the positioning block is fixed to the outer wall of the second half drum, the positioning groove corresponding to the positioning block is formed in the outer wall of the limiting disc, and the groove is formed in the positioning block. According to the tire forming drum, the limiting disc, the positioning groove, the positioning block, the threaded rod, the threaded sleeve, the hinge rod, the clamping block, the clamping groove, the groove and the handle are combined for use, the threaded rod is driven to rotate by rotating the handle, the threaded sleeve is driven to transversely move under the action of threads, the hinge rod is driven to rotate, and the clamping block enters and exits the clamping groove; by means of the mode, time and labor are saved, and the maintenance efficiency of the limiting disc is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire building drums, in particular to a tire building drum. Background Art

[0002] In the existing tire forming field, the tire forming drum on the tire forming machine is used to form the carcass assembly, and to combine the carcass assembly and the tread assembly to form a green tire. During the carcass assembly forming process, the two half-drums need to move axially relative to each other for a certain distance, and then the turn-up rod assemblies on the two half-drums perform a turn-up action to turn the carcass part on the outer side of the tire bead to the carcass part on the inner side of the tire bead.

[0003] For example, a tire building drum with a Chinese authorized patent and announcement number CN217021492U. The synchronous drive assembly in the chassis drives the first push-pull rod in the drum shaft and the second push-pull rod outside the drum shaft to move synchronously, the first push-pull rod drives the first turn-up rod mechanism, and the second push-pull rod drives the second turn-up rod mechanism, so as to achieve the synchronous rise and fall of the first turn-up rod mechanism and the second turn-up rod mechanism, thereby achieving the turn-up rise and fall action. The first push-pull rod and the second push-pull rod both adopt a rod-shaped structure, which has a simple structure, low manufacturing cost, high structural strength and rigidity, convenient control, improved push-pull precision and stability, high integration of the synchronous drive assembly, and can reduce the overall volume of the chassis. The second push-pull rod is located outside the drum shaft, which reduces the complexity of the internal structure of the drum shaft, is easy to maintain, and has a low failure rate.

[0004] The above-mentioned conventional tire building drum is generally fixed with a limiting disk, but the limiting disk is fixedly installed and is inconvenient to disassemble and maintain, and is cumbersome to disassemble during subsequent maintenance, which affects the maintenance efficiency of the tire building drum. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a tire building drum, which is used in combination with a limit plate, a positioning groove, a positioning block, a threaded rod, a threaded sleeve, an articulated rod, a clamping block, a clamping groove, a groove and a handle. The threaded rod is rotated by rotating the handle, and the threaded sleeve is driven to move laterally under the action of the thread, and the articulated rod is driven to rotate, so that the clamping block moves in and out of the clamping groove, thereby achieving the effect of locking the limit plate or removing the limit plate. This method of operation saves time and effort, improves the maintenance efficiency of the limit plate, and solves the problems raised by the background technology.

[0007] (II) Technical solution

[0008] To achieve the above object, the utility model provides the following technical solution: a tire building drum, comprising a drum shaft and a first half-drum and a second half-drum mounted on the left and right ends of the drum shaft, wherein the outer wall of the second half-drum is connected to a limiting plate through a limiting mechanism;

[0009] The limiting mechanism includes a positioning groove, a positioning block, a clamping block, a clamping groove, a groove and a pushing mechanism. The outer wall of the second half drum is fixed with a positioning block, the outer wall of the limiting plate is provided with a positioning groove corresponding to the positioning block, the interior of the positioning block is provided with a groove, the inner wall of the groove is slidably connected with a clamping block, the inner wall of the positioning groove is provided with a clamping groove corresponding to the clamping block, and the pushing mechanism is arranged inside the groove and is used to drive the clamping block in and out of the inside of the clamping groove.

[0010] Preferably, the pushing mechanism includes a threaded rod, a threaded sleeve, a hinged rod and a handle, one end of the threaded rod is rotatably connected to the inner wall of the groove, the other end extends out of the positioning block and is fixed with a handle, the threaded sleeve is threadedly connected to the outer wall of the threaded rod, and the threaded sleeve is hinged to the clamping block through a hinged rod.

[0011] Preferably, a bracket is fixed to the top of the first half drum, and an oil inlet is opened inside the bracket.

[0012] Preferably, a fixed cylinder is fixed to the inner wall of the oil inlet, a fixed plate is fixed to the inner wall of the fixed cylinder, a plurality of groups of filter holes are opened inside the fixed plate, and an adsorption layer is placed on the top of the fixed plate.

[0013] Preferably, a discharge hopper corresponding to the fixed cylinder is fixed at the bottom end of the bracket, and the discharge hopper is in the shape of a hollow quadrangular pyramid with a larger top and a smaller bottom.

[0014] Preferably, a rotating column is rotatably connected to the top of the bracket, a rotating plate is fixed to the top of the rotating column, a movable rod runs through the inside of the rotating plate, and a pressure plate corresponding to the adsorption layer is fixed to the bottom end of the movable rod.

[0015] Preferably, a contact plate is fixed to the top end of the movable rod, a spring is wound around the outer wall of the movable rod, one end of the spring is connected to the contact plate, and the other end is connected to the rotating plate.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. By setting a limit plate, a positioning groove, a positioning block, a threaded rod, a threaded sleeve, a hinged rod, a block, a slot, a groove and a handle in combination, the threaded rod is rotated by rotating the handle, and the threaded sleeve is driven to move laterally under the action of the thread, and the hinged rod is driven to rotate, so that the block moves in and out of the slot, so as to achieve the effect of locking the limit plate or removing the limit plate. This operation method saves time and effort and improves the maintenance efficiency of the limit plate.

[0019] 2. By arranging a bracket, a fixed cylinder, an adsorption layer, a fixed plate, a filter hole, a discharge hopper, a rotating column, a rotating plate, a movable rod, a pressure plate, a spring and a contact plate in combination, the lubricating oil can be adsorbed by the adsorption layer and stored. By pressing down the contact plate to press down the movable rod and the pressure plate, the pressure plate can squeeze the adsorption layer and discharge the adsorbed lubricating oil, and discharge it downward through the filter hole and the discharge hopper, so that the lubricating oil falls on the outer wall of the drum shaft, thereby achieving a better guiding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0022] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 This is a schematic diagram of the support structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the bracket of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the rotating plate of the utility model.

[0026] In the figure: 1. first half drum; 2. second half drum; 3. drum shaft; 411. limit plate; 412. positioning groove; 413. positioning block; 414. threaded rod; 415. threaded sleeve; 416. hinged rod; 417. block; 418. slot; 419. groove; 420. handle; 511. bracket; 512. fixed cylinder; 513. adsorption layer; 514. fixed plate; 515. filter hole; 516. discharge hopper; 517. rotating column; 518. rotating plate; 519. movable rod; 520. pressure plate; 521. spring; 522. resistance plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example

[0029] Reference Figure 1-6As shown, a tire building drum comprises a drum shaft 3 and a first half drum 1 and a second half drum 2 mounted on the left and right ends of the drum shaft 3, wherein the outer wall of the second half drum 2 is connected to a limiting plate 411 through a limiting mechanism.

[0030] The limiting mechanism includes a positioning groove 412, a positioning block 413, a clamping block 417, a clamping groove 418, a groove 419 and a pushing mechanism. The outer wall of the second half drum 2 is fixed with a positioning block 413, the outer wall of the limiting plate 411 is provided with a positioning groove 412 corresponding to the positioning block 413, the inner wall of the positioning block 413 is provided with a groove 419, the inner wall of the groove 419 is slidably connected with a clamping block 417, and the inner wall of the positioning groove 412 is provided with a clamping groove 418 corresponding to the clamping block 417. The pushing mechanism is arranged inside the groove 419 and is used to drive the block 417 to enter and exit the slot 418. The pushing mechanism drives the block 417 to enter and exit the slot 418, thereby strengthening the locking of the positioning block 413 and the limit plate 411. When the block 417 is inserted into the slot 418, the limit plate 411 is locked with the second half drum 2; when the block 417 is disengaged from the slot 418, the limit plate 411 is disengaged from the second half drum 2.

[0031] The pushing mechanism includes a threaded rod 414, a threaded sleeve 415, a hinged rod 416 and a handle 420. One end of the threaded rod 414 is rotatably connected to the inner wall of the groove 419, and the other end extends out of the positioning block 413 and is fixed with a handle 420. The threaded sleeve 415 is threadedly connected to the outer wall of the threaded rod 414. The threaded sleeve 415 and the block 417 are hinged through the hinged rod 416. The threaded rod 414 is rotated by rotating the handle 420, and the threaded sleeve 415 is moved laterally under the action of the thread, and the hinged rod 416 is pushed to rotate. The hinged rod 416 drives the block 417 to stably enter and exit the slot 418 to achieve a limiting effect.

[0032] A bracket 511 is fixed at the top of the first half drum 1, and an oil inlet is provided inside the bracket 511. The oil inlet is provided to facilitate the addition of lubricating oil to the drum shaft 3. A fixed cylinder 512 is fixed to the inner wall of the oil inlet, and a fixed plate 514 is fixed to the inner wall of the fixed cylinder 512. A plurality of filter holes 515 are provided inside the fixed plate 514. An adsorption layer 513 is placed on the top of the fixed plate 514. The adsorption layer 513 can be made of sponge material and has a certain adsorption property. The staff can add lubricating oil to the fixed cylinder 512 in advance, and store it through adsorption by the adsorption layer 513. When the adsorption layer 513 is squeezed, the adsorbed lubricating oil can be discharged. A discharge hopper 516 corresponding to the fixed cylinder 512 is fixed at the bottom of the bracket 511. The discharge hopper 516 is a hollow quadrangular pyramid with a large top and a small bottom. The discharge hopper 516 can guide the discharged lubricating oil to drip onto the drum shaft 3, thereby achieving a stable lubricating oil addition effect.

[0033] The top of the bracket 511 is rotatably connected to a rotating column 517, a rotating plate 518 is fixed on the top of the rotating column 517, a movable rod 519 runs through the inside of the rotating plate 518, and a pressure plate 520 corresponding to the adsorption layer 513 is fixed to the bottom of the movable rod 519. By pressing the contact plate 522 downward, the movable rod 519 and the pressure plate 520 are pressed downward, and the pressure plate 520 can be embedded in the fixed cylinder 512 to squeeze and compress the adsorption layer 513. A resistance plate 522 is fixed to the top of the movable rod 519, and a spring 521 is wound around the outer wall of the movable rod 519. One end of the spring 521 is connected to the resistance plate 522, and the other end is connected to the rotating plate 518. The movable rod 519 is provided to have a rebound effect. In the initial state, the movable rod 519 is in a compressed state, and the pressure plate 520 is located above the fixed cylinder 512, which is convenient for the staff to oil. When in use, the pressure plate 520 is pressed down, which will drive the spring 521 to stretch. After use, the pressure plate 520 is driven to rebound and rise under the elasticity of the movable rod 519, so that a better oiling effect can be achieved.

[0034] Working principle: When the limit plate 411 needs to be disassembled, the threaded rod 414 is driven to rotate by rotating the handle 420, and the threaded sleeve 415 is driven to move under the action of the thread, and the hinged rod 416 is driven to rotate, driving the clamping block 417 to disengage from the inside of the clamping slot 418, thereby achieving a better disassembly effect. The staff can pull the limit plate 411 to the side away from the second half drum 2, driving the positioning block 413 to disengage from the inside of the positioning slot 412, thereby achieving the effect of replacing the limit plate 411.

[0035] When lubricating oil needs to be added to the surface of the drum shaft 3, the lubricating oil is poured into the fixed cylinder 512 in advance, and the adsorption layer 513 can absorb the lubricating oil. Then, the resistance plate 522 is pressed downward to drive the movable rod 519 and the pressure plate 520 to be pressed downward. The pressure plate 520 will be embedded in the fixed cylinder 512 and squeeze the adsorption layer 513, and the absorbed lubricating oil will be discharged through the filter hole 515 inside the fixed plate 514 to achieve the discharging effect. The lubricating oil is guided by the discharge hopper 516 and drips onto the drum shaft 3, ensuring that the equipment is more stable.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tire building drum, comprising a drum shaft (3) and a first half drum (1) and a second half drum (2) sleeved on the left and right ends of the drum shaft (3), characterized in that: The outer wall of the second half drum (2) is connected to a limiting plate (411) via a limiting mechanism; The limiting mechanism comprises a positioning groove (412), a positioning block (413), a clamping block (417), a clamping groove (418), a groove (419) and a pushing mechanism; the outer wall of the second half drum (2) is fixed with a positioning block (413); the outer wall of the limiting plate (411) is provided with a positioning groove (412) corresponding to the positioning block (413); a groove (419) is provided inside the positioning block (413); a clamping block (417) is slidably connected to the inner wall of the groove (419); a clamping groove (418) corresponding to the clamping block (417) is provided on the inner wall of the positioning groove (412); and the pushing mechanism is arranged inside the groove (419) and is used for driving the clamping block (417) to enter and exit the inside of the clamping groove (418).

2. A tire building drum according to claim 1, characterized in that: The pushing mechanism comprises a threaded rod (414), a threaded sleeve (415), a hinged rod (416) and a handle (420); one end of the threaded rod (414) is rotatably connected to the inner wall of the groove (419), and the other end extends out of the positioning block (413) and is fixed with the handle (420); the threaded sleeve (415) is threadedly connected to the outer wall of the threaded rod (414); and the threaded sleeve (415) and the clamping block (417) are hingedly connected via the hinged rod (416).

3. A tire building drum according to claim 1, characterized in that: A bracket (511) is fixed to the top of the first half drum (1), and an oil inlet is provided inside the bracket (511).

4. A tire building drum according to claim 3, characterized in that: A fixed cylinder (512) is fixed to the inner wall of the oil inlet, a fixed plate (514) is fixed to the inner wall of the fixed cylinder (512), a plurality of groups of filter holes (515) are provided inside the fixed plate (514), and an adsorption layer (513) is placed on the top of the fixed plate (514).

5. A tire building drum according to claim 4, characterized in that: A discharge hopper (516) corresponding to the fixed cylinder (512) is fixed at the bottom end of the bracket (511), and the discharge hopper (516) is in the shape of a hollow quadrangular pyramid that is larger at the top and smaller at the bottom.

6. A tire building drum according to claim 5, characterized in that: The top of the bracket (511) is rotatably connected to a rotating column (517), a rotating plate (518) is fixed to the top of the rotating column (517), a movable rod (519) runs through the inside of the rotating plate (518), and a pressing plate (520) corresponding to the adsorption layer (513) is fixed to the bottom end of the movable rod (519).

7. A tire building drum according to claim 6, characterized in that: A contact plate (522) is fixed to the top of the movable rod (519), a spring (521) is wound around the outer wall of the movable rod (519), one end of the spring (521) is connected to the contact plate (522), and the other end is connected to the rotating plate (518).

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