Ring hooking device for radial tire bead

Abstract

The utility model relates to the field of tire production, and discloses a ring hooking device for a radial tire bead, which comprises a main body frame, a central rotating shaft, a hook, an air cylinder, a guide rod, a spring and a stop block, the central rotating shaft is mounted in front of the main frame; the hook comprises a fixing plate and a grabbing plate; a cylinder piston rod is hinged with one end of the central rotating shaft; the stopper is fixed at the rear part of the main body frame; the front end of the guide rod is connected to a cylinder barrel of the air cylinder; and the spring sleeves the periphery of the guide rod. The tire ring hooking device is simple in structure and reasonable in action, and when the ring hooking process is normal, the piston rod of the air cylinder shrinks to open the hook to release a tire ring; when abnormity occurs in the ring hooking process, the force of the hook enables the central rotating shaft to rotate, the cylinder is driven to integrally press the spring backwards, the hook is forced to be opened to release the tire bead, the original point of the servo motor cannot be lost, the box pasting drum disc and the hook cannot be damaged, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of tire production, in particular to a bead hooking device for radial tire beads. Background Art

[0002] The tire bead is an important component of the all-steel radial tire. An all-steel radial tire contains two tire beads on the left and right, which play a role in enhancing the strength of the tire and overcoming the lateral force of the tire during cornering. The tire bead is formed by the combination of apex rubber and steel wire in the previous process and then moves to the forming station. During the operation of the tire bead from the horizontal drum to the conveyor belt, the rotation of the horizontal drum and the movement of the hook ring are accurately positioned by the servo motor control. From the waiting hook position point of the hook on the horizontal drum to the unloading position point where the tire bead is taken out, a straight line is formed between two points. If an abnormality occurs before leaving the waiting hook position point and not reaching the unloading position point, such as the rear part of the tire bead is stuck by the protrusion on the horizontal drum, and the tire bead cannot be hooked to the unloading position normally, it will cause the servo motor to lose the origin, alarm and other faults, resulting in the servo motor being unable to accurately sense and control the position, and also damaging the drum and hook. Utility Model Content

[0003] In order to overcome the defects of the prior art, the utility model provides a bead hooking device for radial tires, and the technical solution is as follows:

[0004] A bead hook device for radial tires, comprising a main frame, a central shaft, a hook, a cylinder, a guide rod, a spring and a block; the central shaft is transversely mounted on the front of the main frame; the hook comprises a fixing plate and a grabbing plate connected as one body, the fixing plate being fixed to the middle of the central shaft; the front end of the piston rod of the cylinder is hinged to one end of the central shaft located outside the main frame; the block is fixed to the rear of the main frame, a block through hole is provided in the middle of the block; the front end of the guide rod is connected to the rear end of the cylinder barrel of the cylinder, the guide rod freely passes through the block through hole, and a barrier is installed at the rear end of the guide rod on the rear side of the block; the spring is sleeved on the periphery of the guide rod and is located between the cylinder barrel and the block.

[0005] Furthermore, the angle between the fixing plate and the grabbing plate of the hook is a right angle.

[0006] Furthermore, the fixing plate of the hook is fixed to the central rotating shaft through a pad.

[0007] Furthermore, the front end of the guide rod is fixed to the rear end of the cylinder barrel of the cylinder through a nut.

[0008] Furthermore, the guide rod is provided with a washer larger than the diameter of the spring at a position between the nut and the spring.

[0009] Furthermore, the guide rod is provided with a gasket larger than the diameter of the spring at a position between the spring and the stopper.

[0010] Furthermore, the barrier member is a fastening nut.

[0011] Furthermore, the number of the fastening nuts is two and they are tightened together.

[0012] Compared with the prior art, the utility model mainly has the following beneficial technical effects:

[0013] 1. The utility model has reasonable action. When the hooking process is normal, the cylinder piston rod contracts to open the hook and release the tire bead. When the hooking process is abnormal, the force of the hook rotates the central shaft, driving the cylinder as a whole to press the spring backward, forcing the hook to open and release the tire bead, which will not cause the servo motor origin to be lost, and will not damage the box drum and hook.

[0014] 2. Due to the proper handling of hook loop abnormalities, production efficiency can be effectively improved.

[0015] 3. Simple structure, reliable performance, easy operation, and conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model when it is in the hooking position;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model when it is in the hooking position;

[0018] Figure 3 It is a side view structural schematic diagram of the utility model when it is in the hooking position;

[0019] Figure 4 It is a front view structural schematic diagram of the utility model when it is in the hooking position;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model when it is in the circle-releasing position;

[0021] Figure 6 It is a schematic diagram of the structure of the utility model when it is in the circle-releasing position;

[0022] Figure 7 It is a side view structural schematic diagram of the utility model when it is in the circle releasing position;

[0023] Figure 8 It is a front view structural schematic diagram of the utility model when it is in the circle releasing position;

[0024] In the figure: 1-central shaft, 2-main frame, 3-stopper, 4-fastening nut, 5-hook, 5.1-fixing plate, 5.2-grabbing plate, 5.3-pad, 6-cylinder, 6.1-piston rod, 6.2-cylinder barrel, 7-nut, 8-spring, 9-guide rod. DETAILED DESCRIPTION Example 1

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A hooking device for radial tire bead, comprising a main frame 2, a central rotating shaft 1, a hook 5, a cylinder 6, a guide rod 9, a spring 8 and a stopper 3; the central rotating shaft 1 is transversely mounted on the front of the main frame 2; the hook 5 comprises a fixing plate 5.1 and a grabbing plate 5.2 connected as one, the fixing plate 5.1 is fixed to the middle of the central rotating shaft 1; the front end of the piston rod 6.1 of the cylinder 6 is hinged to one end of the central rotating shaft 1 located outside the main frame 2; the stopper 3 is fixed to the rear of the main frame 2, and a stopper through hole is provided in the middle of the stopper 3; the front end of the guide rod 9 is connected to the rear end of the cylinder barrel 6.2 of the cylinder 6, the guide rod 9 freely passes through the stopper through hole, and a barrier is installed at the rear end of the guide rod 9 on the rear side of the stopper 3; the spring 8 is sleeved on the outer periphery of the guide rod 9 and is located between the cylinder barrel 6.2 and the stopper 3. Example 2

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A hooking device for radial tire bead, based on the technical solution described in Example 1, the angle between the fixing plate 5.1 of the hook 5 and the grabbing plate 5.2 is a right angle, which is easy to operate and has a firm structure. Example 3

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A hooking device for radial tire bead, based on the technical solution described in Example 1, the fixing plate 5.1 of the hook 5 is fixed to the central shaft 1 through the pad 5.3 to enhance the firmness. Example 4

[0028] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A bead hooking device for radial tires, based on the technical solution described in Example 1, the front end of the guide rod 9 is fixed to the rear end of the cylinder barrel 6.2 of the cylinder 6 through the nut 7, and the guide rod 9 is provided with a gasket (not shown in the figure) larger than the diameter of the spring 8 at the position between the nut 7 and the spring 8, and the guide rod 9 is also provided with a gasket (not shown in the figure) larger than the diameter of the spring 8 at the position between the spring 8 and the stopper 3. The arrangement of the nut 7 and the gasket is conducive to limiting the spring 8 and protecting the contact surface between the spring 8 and the cylinder barrel 6.2 and the stopper 3. Example 5

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A bead hooking device for radial tires, based on the technical solution described in Example 1, wherein the barrier is a fastening nut 4, preferably two fastening nuts 4 are provided and tightened together, so as to enhance the anti-loosening effect.

[0030] In order to enable those skilled in the art to better understand the present invention, the basic working principle of the present invention is briefly described as follows:

[0031] When the tire bead enters the horizontal drum from the previous process, the central shaft 1 rotates under the extension of the piston rod 6.1 of the cylinder 6, driving the grabbing plate 5.2 of the hook 5 to tilt backward and downward to hook the tire bead, and then moves backward with the main frame 2 driven by the servo motor; when the tire bead reaches the top of the conveyor belt, the central shaft 1 rotates under the contraction of the piston rod 6.1 of the cylinder 6, driving the grabbing plate 5.2 of the hook 5 to lift forward and upward to release the tire bead; when an obstacle is encountered during the hooking process, such as the tire bead is stuck by a component on the horizontal drum and cannot move, the force of the hook 5 causes the central shaft 1 to rotate, driving the cylinder 6 as a whole to press the spring 8 backward and downward, forcing the hook 5 to open and release the tire bead, thereby avoiding the loss of the servo motor origin and damage to the box drum and the hook.

Claims

1. A bead hooking device for radial tires, characterized in that: It includes a main frame, a central rotating shaft, a hook, a cylinder, a guide rod, a spring and a stopper; the central rotating shaft is horizontally installed at the front of the main frame; the hook includes a fixing plate and a grabbing plate connected as one body, and the fixing plate is fixed to the middle of the central rotating shaft; the front end of the piston rod of the cylinder is hinged to one end of the central rotating shaft located outside the main frame; the stopper is fixed to the rear part of the main frame, and a stopper through hole is provided in the middle part of the stopper; the front end of the guide rod is connected to the rear end of the cylinder barrel of the cylinder, the guide rod freely passes through the stopper through hole, and a barrier is installed at the rear end of the guide rod on the rear side of the stopper; the spring is sleeved on the outer periphery of the guide rod and is located between the cylinder barrel and the stopper.

2. A bead hooking device for radial tires according to claim 1, characterized in that: The angle between the fixing plate and the grabbing plate of the hook is a right angle.

3. A bead hooking device for radial tires according to claim 1, characterized in that: The fixing plate of the hook is fixed to the central rotating shaft through a pad.

4. A bead hooking device for radial tires according to claim 1, characterized in that: The front end of the guide rod is fixed to the rear end of the cylinder barrel of the cylinder through a nut.

5. A bead hooking device for radial tires according to claim 4, characterized in that: The guide rod is sleeved with a gasket whose diameter is larger than that of the spring at a position between the nut and the spring.

6. A bead hooking device for radial tires according to claim 1, characterized in that: The guide rod is sleeved with a gasket larger than the diameter of the spring at a position between the spring and the stopper.

7. A bead hooking device for radial tires according to claim 1, characterized in that: The blocking member is a fastening nut.

8. A bead hooking device for radial tires according to claim 7, characterized in that: The fastening nuts are provided in two and are tightened together.

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