Rapid chuck replacement device for PCI vulcanizing machine

Abstract

A quick-exchange device for a chuck of a vulcanizer PCI attached to a vulcanizer PCI stand, the exchange device comprising a chuck, a chuck base, and a pressing assembly, the chuck being provided with a concave groove and a first protrusion, the chuck being removably provided on the chuck base, the pressing assembly comprising a rotating shaft provided in the chuck base and a pressing plate connected to an end of the rotating shaft, the pressing plate being provided with a second protrusion, the chuck being provided between the chuck base and the pressing plate.

Description

Technical Field

[0001] This application claims priority to a Chinese patent application with an application date of March 16, 2023 and an application number of 202320510057.0, and all the contents of the application are incorporated herein by reference.

[0002] This application relates to the technical field of vulcanization equipment, for example, to a quick change device for the chuck of a vulcanizer PCI.

Background Art

[0003] In industrial production, the vulcanizer PCI is used to vulcanize and shape tires. When producing tires of different model numbers, it is necessary to replace different chucks to inflate the tires. In the related art, the chuck and the chuck base are usually fixed with screws (as shown in FIG. 9), which is cumbersome during replacement, requires manual removal, takes time and effort, and is more likely to damage the chuck.

Summary of the Invention

[0004] This application provides a quick change device for the chuck of a vulcanizer PCI that can quickly separate the chuck and the chuck base, achieve quick replacement of the chuck, reduce the removal time, and improve the processing efficiency of the equipment.

[0005] One embodiment of this application discloses a quick change device for the chuck of a vulcanizer PCI attached to a vulcanizer PCI stand. The change device includes a chuck, a chuck base, and a pressing assembly. The chuck is provided with a concave groove and a first protrusion. The chuck is removably provided on the chuck base. The pressing assembly includes a rotating shaft provided in the chuck base and a pressing plate connected to an end of the rotating shaft. The pressing plate is provided with a second protrusion. The chuck is provided between the chuck base and the pressing plate.

Brief Description of the Drawings

[0006] [Figure 1] This is a schematic diagram of the overall structure of a rapid chuck replacement device for a PCI vulcanizer according to one embodiment of the present invention. [Figure 2] This is a schematic diagram illustrating a structure in which the upper chuck and lower chuck are separated according to one embodiment of the present invention. [Figure 3] This is an enlarged view of area I in the present application. [Figure 4] This is a schematic plan view of the present invention. [Figure 5] This is a plan view of the press plate according to one embodiment of the present invention. [Figure 6] A schematic diagram of the structure of a chuck according to one embodiment of the present invention. [Figure 7] This is a schematic diagram of the structure of pressing by an inclined surface according to one embodiment of the present invention. [Figure 8] This is a cross-sectional view of area A in the present application. [Figure 9] This is a schematic diagram illustrating the structure to which the chuck and chuck base of the related technology of the present application are attached. [Explanation of Symbols]

[0007] 1...Vulcanizer PCI stand, 11...Recessed groove, 12...First protrusion, 2...Chuck, 21...Pin hole, 22...Positioning hole, 23...Upper chuck, 24...Lower chuck, 3...Chuck base, 32...Chuck positioning pin, 4...Rotating shaft, 41...Drive cylinder, 42...Connecting rod, 43...Upper rotating shaft, 44...Lower rotating shaft, 45...Lock head, 46...Lock opening, 5...Pressing plate, 51...Second protrusion, 52...Mounting groove, 53...Positioning pin, 54...Spring. [Modes for carrying out the invention]

[0008] The present invention will be described in more detail below with reference to the drawings.

[0009] As shown in Figures 1 to 7, the present invention discloses a rapid replacement device for the chuck of a vulcanizing machine PCI, which is attached to a vulcanizing machine PCI stand 1. The rapid replacement device comprises a chuck 2, a chuck base 3, and a pressing assembly. The chuck 2 is provided with a groove 11 and a first projection 12. The chuck 2 is detachably mounted on the chuck base 3. The pressing assembly comprises a rotating shaft 4 provided within the chuck base 3. A pressing plate 5 is connected to the end of the rotating shaft 4. The pressing plate 5 and the rotating shaft 4 are fixed by welding. The pressing plate 5 is provided with a second projection 51. The chuck 2 is provided between the chuck base 3 and the pressing plate 5.

[0010] The advantages of adopting the above technical proposal are that, since the pressing plate 5 is provided to fix the chuck 2 to the chuck base 3 and the rotating shaft 4 is provided to move the pressing plate 5 to rotate, when the second protrusion 51 on the pressing plate 5 corresponds to the first protrusion 12 on the chuck 2, the pressing plate 5 presses the chuck 2 against the chuck base 3. After the pressing plate 5 rotates, the second protrusion 51 on the pressing plate 5 corresponds to the groove 11 on the chuck 2. At this time, the pressing plate 5 does not come into contact with the chuck 2, and the chuck 2 can be removed directly without requiring manual removal. This reduces the time required to replace the chuck 2, reduces damage to the chuck 2 during replacement compared to the screw connection method, and improves the processing efficiency of the equipment.

[0011] In some embodiments, as shown in Figure 3, the pressing plate 5 has a mounting groove 52 on the side surface of the pressing plate 5 that contacts the chuck 2, a positioning pin 53 is provided in the mounting groove 52, a spring 54 is fitted onto the positioning pin 53, the end of the positioning pin 53 protrudes from the mounting groove 52, a positioning hole 22 is provided in the chuck 2, a stopper piece is provided at a position close to the chuck 2 of the positioning pin 53, the stopper piece is fixedly connected to the tip of the positioning pin 53 and the stopper piece can move within the mounting groove 52, and one end of the spring 54 abuts against the stopper piece.

[0012] The advantages of adopting the above technical proposal are that when the pressing plate 5 and the chuck 2 are attached, the positioning pin 53 enters the positioning hole 22, preventing relative sliding between the chuck 2 and the pressing plate 5, and the installation of the spring 54 makes it easier to move the positioning pin 53.

[0013] In some embodiments, the positioning hole 22 can be structured such that its side surface is an inclined transient surface, and the cross-section of the end of the positioning pin 53 is semicircular.

[0014] The advantages of adopting the above technical proposal are that when removal is required, the pressing plate 5 is rotated, and at this time, the positioning pin 53 moves along the transient surface of the positioning hole 22 to the surface of the chuck 2, completing the exit movement of the positioning pin 53 from inside the positioning hole 22, and the top of the positioning pin 53 is smooth so that it does not get caught inside the positioning hole 22.

[0015] In some embodiments, as shown in Figure 4, the rotating shaft 4 may be configured such that a rotary drive assembly is connected to the rotating shaft 4, the rotary drive assembly comprises a drive cylinder 41 and a connecting rod 42, the connecting rod 42 and the rotating shaft 4 are fixedly connected by screws, the cylinder block of the drive cylinder 41 is hinged to the vulcanizer PCI stand 1, the output end of the drive cylinder 41 is connected to the first end of the connecting rod 42, the second end of the connecting rod 42 is connected to the rotating shaft 4, and the connecting rod 41 rotates around the rotating shaft 4.

[0016] The advantages of adopting the above technical proposal are that one protruding end of the drive cylinder 41 is connected to the connecting rod 42, which moves the connecting rod 42 to move, and the connecting rod 42 drives the rotating shaft 4 to rotate, and the rotating shaft 4 moves the pressing plate 5 to rotate, and the chuck 2 can be removed directly from the chuck base 3 without requiring manual removal.

[0017] In some embodiments, as shown in FIG. 2, the chuck base 3 may adopt a structural solution in which a chuck positioning pin 32 is provided on the chuck base 3, and a pin hole 21 is provided at a position corresponding to the chuck positioning pin 32 of the chuck 2.

[0018] The beneficial aspect of adopting the above technical solution is that by providing the chuck positioning pin 32 on the chuck base 3 to be fitted into the pin hole 21 located in the chuck 2, it is possible to prevent the chuck 2 from rotating during use and affecting the processing of the product.

[0019] In some embodiments, the chuck 2 includes an upper chuck 23 and a lower chuck 24. The rotating shaft 4 includes an upper rotating shaft 43 and a lower rotating shaft 44. The upper rotating shaft 43 is provided inside the upper chuck 23, and the lower rotating shaft 44 is provided inside the lower chuck 24. Pressing plates 5 are respectively fixed to the upper rotating shaft 43 and the lower rotating shaft 44. The pressing plates 5 on the upper rotating shaft 43 and the lower rotating shaft 44 fix the provided upper chuck 23 and lower chuck 24 in pairs. A locking head 45 is provided at the end of the lower rotating shaft 44, and a locking port 46 is provided on the upper rotating shaft 43. The locking head 45 and the locking port 46 are fitted together. A T-shaped protrusion protruding into the locking port 46 is provided at the end of the locking head 45, and a T-shaped groove is provided inside the locking port 46. When the locking head 45 enters the locking port 46, the cross protrusion and the cross groove are fitted together to realize the connection and synchronous rotation of the upper rotating shaft 43 and the lower rotating shaft 44. A structural solution can be adopted.

[0020] The beneficial aspect of adopting the above technical solution is that when the locking head 45 and the locking port 46 are fitted together to connect and fix the upper rotating shaft 4 and the lower rotating shaft 44, and the upper rotating shaft 43 and the lower rotating shaft 44 rotate simultaneously by the drive of one drive cylinder 41, the upper chuck 23 and the lower chuck 24 can be removed, reducing the drive structure and the processing cost.

[0021] In some embodiments, as shown in FIGS. 7 to 8, the chuck 2 may adopt a structural solution in which the inclination angle of the side surface of the pressing plate 5 of the chuck 2 that contacts the chuck 2 is the same as the inclination angle of the side surface of the pressing plate 5 that contacts the chuck 2.

[0022] The beneficial point of adopting the above technical solution is that by providing an inclined surface between the chuck 2 and the pressing plate 5, when the pressing plate 5 is moved and rotated by the rotating shaft 4, the two inclined surfaces come into contact, pressing the chuck 2 and preventing the rotation of the chuck 2, realizing the function of being pressed and self-locked, and avoiding the rotation of the chuck 2 during the processing process.

[0023] In some embodiments, the drive cylinder 41 may adopt a structural solution in which the drive cylinder 41 is provided horizontally.

[0024] The beneficial point of adopting the above technical solution is that the horizontally provided drive cylinder 41 drives one end of the connecting rod 42 to reciprocate horizontally, causing the rotating shaft 4 connected to the connecting rod 42 to rotate, and further moving the pressing plate 5 to rotate.

[0025] During the working process, when the chuck 2 needs to be replaced, first, the upper chuck 23 is moved by the vulcanization equipment to contact the lower chuck 24. At this time, the lock head 45 on the lower rotating shaft 44 enters the lock port 46, and the drive cylinder 41 extends and moves the rotating shaft 4 to rotate. At this time, the pressing plate 5 rotates, and the second protrusion 51 on the pressing plate 5 rotates from the first protrusion 12 on the chuck 2 into the concave groove 11. In this case, the pressing plate 5 does not contact the chuck 2, and the upper chuck base 3 located above rises with the vulcanization equipment, taking out the chuck 2 from the upper and lower chuck bases 3 and replacing it with the replacement chuck 2. Then, the upper chuck base 3 descends with the vulcanization equipment, the drive cylinder 41 retracts, and the pressing plate 5 rotates reversely to press the chuck 2 again to complete the replacement.

Claims

1. Attached to the vulcanizing machine PCI stand (1), Chuck base (3) and A chuck (2) is provided with a groove (11) and a first projection (12), and is detachably mounted on the chuck base (3), The pressing assembly comprises a rotating shaft (4) provided within the chuck base (3), and a pressing plate (5) connected to the end of the rotating shaft (4), having a second projection (51) and with the chuck (2) provided between it and the chuck base (3), The inclination angle of the side surface of the chuck (2) that contacts the pressing plate (5) is the same as the inclination angle of the side surface of the pressing plate (5) that contacts the chuck (2). A rapid chuck replacement device for PCI vulcanizing machines.

2. The chuck (2) is provided with a positioning hole (22), and a mounting groove (52) is provided on the side of the pressing plate (5) that contacts the chuck (2). A spring (54) is fitted into the mounting groove (52), and a positioning pin (53) is provided, the end of which protrudes from the mounting groove (52) and which is slidable within the positioning hole (22). A rapid replacement device for the chuck of a PCI vulcanizing machine according to claim 1.

3. The side surface of the positioning hole (22) is an inclined transient surface. A rapid replacement device for the chuck of a PCI vulcanizer according to claim 2.

4. A rotary drive assembly is connected to the rotating shaft (4), which includes a drive cylinder (41) fixed to the vulcanizing machine PCI stand (1), and a connecting rod (42) whose first end is connected to the output end of the drive cylinder (41) and whose second end is connected to the rotating shaft (4). A rapid replacement device for the chuck of a PCI vulcanizing machine according to claim 1.

5. The chuck base (3) is provided with a chuck positioning pin (32), and a pin hole (21) is provided in the chuck (2) at a position corresponding to the chuck positioning pin (32). A rapid replacement device for the chuck of a PCI vulcanizing machine according to claim 1.

6. The rotating shaft (4) comprises an upper rotating shaft (43) provided with a locking opening (46) and a lower rotating shaft (44) provided with a locking head (45) at its end, and the locking head (45) and the locking opening (46) are fitted together. A rapid replacement device for the chuck of a PCI vulcanizing machine according to claim 1.

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