A tire unloading arm driving device and tire vulcanizing machine

Abstract

The present invention provides a tire unloading arm driving device and a tire vulcanizer. The tire unloading arm driving device comprises: a lifting bracket, a rotating arm, a support frame, a first cylinder and a second cylinder; the first cylinder body is installed on the first flange plate of the support frame, and the first cylinder piston rod is connected to the middle connecting plate; the second cylinder body is installed on the second flange plate of the support frame, and the second cylinder piston rod is also connected to the middle connecting plate. Compared with the prior art, the first cylinder and the second cylinder of the present invention are both installed on the support frame. Since the first flange plate and the second flange plate always make linear motion relative to the middle connecting plate, during movement, the cylinder body and the piston rod are not subject to lateral force, and the lateral force during the movement is borne by the support frame with higher strength, which is convenient for improving the movement speed of the overall mechanism, improving production efficiency, and improving tire production quality. At the same time, the service life of relatively fragile components is greatly improved, and the device as a whole is more stable and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of tire vulcanizers, in particular to a tire unloading rotating arm driving device and a tire vulcanizer. Background Art

[0002] In the automated production process of the tire vulcanizer, the automatic transfer of the vulcanized tires to the post-inflation station for cooling is one of the important production processes of tire vulcanization, and this process directly affects the efficiency and quality of tire production. Figure 1 As shown in FIG. 1 , a common tire unloading arm structure is shown. The rotating arm 91 rotates around the hinge point on the bracket 92 under the drive of the driving cylinder 93. The driving cylinder 93 is subjected to axial force and lateral force during the tire unloading process, wherein the lateral force will seriously affect the service life of the driving cylinder 93. In addition, when the rotating arm 91 stops, the buffer 94 acts on the rotating arm 91 to make the rotating arm 91 stop with buffering. Figure 2 1 is a schematic diagram of the structure when the buffer 94 is in contact with the rotating arm 91, and the buffer 94 is in contact with the rotating arm 91 at position d1; Figure 3 It is a structural diagram of the positional relationship between the buffer 94 and the rotating arm 91 when the rotating arm 91 stops in place. The buffer 94 contacts the rotating arm 91 at position d2, wherein d1 and d2 correspond to different positions of the rotating arm 91, that is to say, from the time when the rotating arm 91 and the buffer 94 contact to the time when they stop in place, sliding friction occurs at the contacting portion between the buffer 94 and the rotating arm 91, and the buffer 94 is affected by a large lateral force due to the friction, which has a large negative effect on the buffering performance of the buffer 94 and reduces the service life of the buffer 94. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a tire unloading arm driving device and a tire vulcanizing machine.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve the technical problem is: a tire unloading arm driving device, comprising:

[0005] Lifting bracket;

[0006] A rotating arm rotatably mounted on the lifting bracket;

[0007] A support frame, comprising an intermediate connecting plate, a first connecting plate, a second connecting plate, a first flange plate and a second flange plate, wherein the first connecting plate is connected to the intermediate connecting plate via a first guide rod, the second connecting plate is connected to the intermediate connecting plate via a second guide rod, the first flange plate is mounted on the first guide rod and can translate along the first guide rod, the first flange plate is also hinged to the lifting bracket, the second flange plate is mounted on the second guide rod and can translate along the second guide rod, and the second flange plate is also hinged to the rotating arm;

[0008] A first cylinder, a cylinder body of which is mounted on the first flange plate, and a piston rod of the first cylinder is connected to the middle connecting plate;

[0009] A second cylinder, a cylinder body of which is mounted on the second flange plate, and a piston rod of the second cylinder is connected to the middle connecting plate.

[0010] Compared with the prior art, the present invention realizes the movement from the standby position, to the main engine position, to the inflation and cooling position, and finally back to the standby position to wait for the next working cycle through the actions of the first cylinder and the second cylinder; the first cylinder and the second cylinder are both installed on the supporting frame, and since the first flange plate and the second flange plate always make linear motion relative to the middle connecting plate, during movement, the cylinder body and the piston rod are not subjected to lateral force, and the lateral force during the movement is borne by the supporting frame with higher strength, which is convenient for improving the movement speed of the overall mechanism, improving production efficiency, and improving tire production quality. At the same time, the service life of the cylinder components with relatively fragile strength is greatly improved, the maintenance frequency and cost of the device are reduced, and the device as a whole is more stable and reliable.

[0011] Furthermore, a first buffer and a second buffer are vertically installed on the first flange plate, the force-bearing surface of the first buffer faces the middle connecting plate, and the force-bearing surface of the second buffer faces the first connecting plate; a third buffer and a fourth buffer are vertically installed on the second flange plate, the force-bearing surface of the third buffer faces the middle connecting plate, and the force-bearing surface of the fourth buffer faces the second connecting plate.

[0012] By adopting the above-mentioned preferred scheme, each buffer is only subjected to positive pressure, and the compression direction of the buffer is consistent with the movement direction of the intermediate connecting plate, the first flange plate and the second flange plate. It is not subject to lateral force during movement, which extends the service life of the buffer and also improves the stability of the buffer before the swing arm stops.

[0013] Furthermore, the lifting bracket is provided with a first limiting bolt and a second limiting bolt, the first limiting bolt is used to limit the rotating arm from rotating to the main machine station, and the second limiting bolt is used to limit the rotating arm from rotating to the charging cooling station.

[0014] By adopting the above preferred solution, mechanical limiting is performed by the first limiting bolt and the second limiting bolt, and the position positioning is accurate and the repeatability is high.

[0015] Furthermore, a rotating shaft is provided at the rotation center of the rotating arm, and both ends of the rotating shaft are installed on the bearing seat on the lifting bracket through bearings.

[0016] By adopting the above preferred solution, the stability of the rotating arm's rotation center structure is improved, ensuring the flexibility of the rotating arm in rotating around the center of the rotating shaft.

[0017] Furthermore, the first flange plate is connected to the lifting bracket via a first connecting seat, and the first flange plate can rotate around the axis of its ear axis on the first connecting seat; the second flange plate is connected to the rotating arm via a second connecting seat, and the second flange plate can rotate around the axis of its ear axis on the second connecting seat.

[0018] Furthermore, the cross-section of the intermediate connecting plate is square, there are two first guide rods, and the two first guide rods are respectively installed at opposite corners of the intermediate connecting plate; there are two second guide rods, and the two second guide rods are respectively installed at another opposite corner of the intermediate connecting plate.

[0019] The adoption of the above preferred solution facilitates the assembly of the support frame, improves installation efficiency and structural strength, and enhances movement smoothness.

[0020] A tire vulcanizer comprises a column, the tire unloading arm driving device and a manipulator claw plate, wherein the lifting bracket of the tire unloading arm driving device is installed on the linear guide rail of the column, and the manipulator claw plate is installed on the rotating arm of the tire unloading arm driving device.

[0021] By adopting the above preferred solution, the connection with different robot gripper discs is achieved through the rotating arm, which has good versatility. Different space size requirements can be achieved by changing the stroke of the first cylinder and the second cylinder, and the scope of application is wide.

[0022] Furthermore, the tire unloading arm driving device comprises two groups, and the two groups of tire unloading arm driving devices are symmetrically arranged along the center line of the tire vulcanizer.

[0023] The above preferred solution can be used to transport tires in a vulcanizer with two vulcanization stations, is easy to install, has a more compact structure, and fully utilizes the space of the vulcanizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a tire unloading rotating arm driving mechanism in the prior art;

[0026] Figure 2 It is a schematic diagram of the structure when the buffer and the rotating arm are in contact with each other in the prior art;

[0027] Figure 3It is a schematic diagram of the structure of the buffer and the rotating arm in the prior art when they are stopped in place;

[0028] Figure 4 It is a structural schematic diagram of an implementation mode of the present invention;

[0029] Figure 5 It is a structural schematic diagram of an implementation mode of the present invention;

[0030] Figure 6 It is a structural schematic diagram of an implementation mode of the support frame of the present invention;

[0031] Figure 7 It is a structural schematic diagram of another embodiment of the present invention.

[0032] The numbers and letters in the figure represent the names of the corresponding parts:

[0033] 1-lifting bracket; 11-first connecting seat; 2-swivel arm; 21-swivel shaft; 22-bearing; 23-second connecting seat; 3-support frame; 31-middle connecting plate; 32-first connecting plate; 33-second connecting plate; 34-first flange plate; 35-second flange plate; 36-first guide rod; 37-second guide rod; 4-first cylinder; 5-second cylinder; 61-first buffer; 62-second buffer; 63-third buffer; 64-fourth buffer; 71-first limiting bolt; 72-second limiting bolt; 8-column; 81-linear guide rail; 91-swivel arm; 92-bracket; 93-driving cylinder; 94-buffer. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 4-6 As shown, a tire unloading arm driving device comprises:

[0036] Lifting bracket 1;

[0037] A rotating arm 2, which is rotatably mounted on the lifting bracket 1;

[0038] The supporting frame 3 includes an intermediate connecting plate 31, a first connecting plate 32, a second connecting plate 33, a first flange plate 34 and a second flange plate 35. The first connecting plate 32 is connected to the intermediate connecting plate 31 via a first guide rod 36, the second connecting plate 33 is connected to the intermediate connecting plate 31 via a second guide rod 37, the first flange plate 34 is mounted on the first guide rod 36 and can translate along the first guide rod 36, the first flange plate 34 is also hinged to the lifting bracket 1, the second flange plate 35 is mounted on the second guide rod 37 and can translate along the second guide rod 37, and the second flange plate 35 is also hinged to the rotating arm 2;

[0039] The first cylinder 4, whose cylinder body is mounted on the first flange plate 34, and the piston rod of the first cylinder 4 is connected to the middle connecting plate 31;

[0040] The cylinder body of the second cylinder 5 is mounted on the second flange plate 35 , and the piston rod of the second cylinder 5 is connected to the middle connecting plate 31 .

[0041] The beneficial effect of adopting the above technical solution is: through the action of the first cylinder 4 and the second cylinder 5, the movement from the standby position, to the main engine position, then to the inflation and cooling position, and finally back to the standby position to wait for the next work cycle is realized; the first cylinder 4 and the second cylinder 5 are both installed on the support frame 3. During movement, the cylinder body and the piston rod are not subjected to lateral force, and the lateral force during the movement is borne by the support frame with higher strength, which is convenient for improving the movement speed of the overall mechanism, improving production efficiency, and improving tire production quality. At the same time, it greatly improves the service life of the relatively fragile cylinder components, reduces the frequency and cost of device maintenance, and makes the device as a whole more stable and reliable.

[0042] like Figure 6 As shown, in some other embodiments of the present invention, the first buffer 61 and the second buffer 62 are vertically mounted on the first flange plate 34, the force-bearing surface of the first buffer 61 faces the middle connecting plate 31, the force-bearing surface of the second buffer 62 faces the first connecting plate 32, and the third buffer 63 and the fourth buffer 64 are vertically mounted on the second flange plate 35, the force-bearing surface of the third buffer 63 faces the middle connecting plate 31, and the force-bearing surface of the fourth buffer 64 faces the second connecting plate 33. The beneficial effect of adopting the above technical solution is that each buffer is only subjected to positive pressure, the compression direction of the buffer is consistent with the movement direction of the middle connecting plate, the first flange plate, and the second flange plate, and is not subjected to lateral force during movement, which prolongs the service life of the buffer, and also improves the stability of buffering before the swing arm stops.

[0043] like Figure 4As shown, in some other embodiments of the present invention, the lifting bracket 1 is provided with a first limiting bolt 71 and a second limiting bolt 72, the first limiting bolt 71 is used to limit the rotating arm 2 from rotating into the main machine station, and the second limiting bolt 72 is used to limit the rotating arm 2 from rotating into the air charging and cooling station. The beneficial effect of adopting the above technical solution is: mechanical limiting is performed by the first limiting bolt and the second limiting bolt, the position positioning is accurate, and the repeatability is high.

[0044] like Figure 5 As shown, in some other embodiments of the present invention, a rotating shaft 21 is provided at the rotating center of the rotating arm 2, and both ends of the rotating shaft 21 are mounted on the bearing seats on the lifting bracket 1 through bearings 22. The beneficial effect of adopting the above technical solution is: the stability of the rotating center structure of the rotating arm is improved, and the flexibility of the rotating arm rotating around the rotating shaft center is ensured.

[0045] like Figure 4 , 5 As shown, in other embodiments of the present invention, the first flange plate 34 is connected to the lifting bracket 1 via the first connecting seat 11, and the first flange plate 34 can rotate on the first connecting seat 11 around the axis of its ear axis; the second flange plate 35 is connected to the rotating arm 2 via the second connecting seat 23, and the second flange plate 35 can rotate on the second connecting seat 23 around the axis of its ear axis; the cross section of the intermediate connecting plate 31 is square, and there are two first guide rods 36, which are respectively installed at the opposite corners of the intermediate connecting plate 31; there are two second guide rods 37, which are respectively installed at the other opposite corners of the intermediate connecting plate 31. The beneficial effects of adopting the above technical solution are: facilitating the assembly of the support frame, improving the installation efficiency and structural strength, and enhancing the smoothness of movement.

[0046] like Figure 7As shown, a tire vulcanizer includes a column 8, two sets of tire unloading arm drive devices and two sets of manipulator claw plates (not shown), the lifting bracket 1 of the tire unloading arm drive device is installed on the linear guide rail 81 of the column 8, the manipulator claw plate is installed on the arm 2 of the tire unloading arm drive device, and the two sets of tire unloading arm drive devices are symmetrically arranged along the center line of the tire vulcanizer. The action process of the tire unloading arm drive device is as follows: when working, the initial state is the standby position, the second cylinder 5 is in a retracted state, and the first cylinder 4 is in an extended state; then the piston rod of the second cylinder 5 begins to extend, driving the arm 2 to enter the main machine station, after the tire is grabbed, the first cylinder 4 and the second cylinder 5 begin to retract, driving the arm 2 to enter the inflation and cooling station, and then put down the tire, the first cylinder 4 begins to extend, and returns to the standby position again, waiting for the next working cycle. The beneficial effects of adopting the above technical solution are: connection with different robot claws can be achieved through the rotating arm, which has good versatility, and different space size requirements can be achieved by changing the stroke of the first cylinder and the second cylinder, and it has a wide range of applications; it can be used for tire handling of a double-vulcanization station vulcanizer, is easy to install, has a more compact structure, and makes full use of the vulcanizer space.

[0047] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A tire unloading arm driving device, characterized in that: include: Lifting bracket; A rotating arm rotatably mounted on the lifting bracket; A support frame, comprising an intermediate connecting plate, a first connecting plate, a second connecting plate, a first flange plate and a second flange plate, wherein the first connecting plate is connected to the intermediate connecting plate via a first guide rod, the second connecting plate is connected to the intermediate connecting plate via a second guide rod, the first flange plate is mounted on the first guide rod and can translate along the first guide rod, the first flange plate is also hinged to the lifting bracket, the second flange plate is mounted on the second guide rod and can translate along the second guide rod, and the second flange plate is also hinged to the rotating arm; A first cylinder, a cylinder body of which is mounted on the first flange plate, and a piston rod of the first cylinder is connected to the middle connecting plate; A second cylinder, a cylinder body of which is mounted on the second flange plate, and a piston rod of the second cylinder is connected to the middle connecting plate.

2. The tire unloading arm driving device according to claim 1, characterized in that: The first buffer and the second buffer are vertically installed on the first flange plate, the force-bearing surface of the first buffer faces the middle connecting plate, and the force-bearing surface of the second buffer faces the first connecting plate. The third buffer and the fourth buffer are vertically installed on the second flange plate, the force-bearing surface of the third buffer faces the middle connecting plate, and the force-bearing surface of the fourth buffer faces the second connecting plate.

3. The tire unloading arm driving device according to claim 2, characterized in that: The lifting bracket is provided with a first limiting bolt and a second limiting bolt, the first limiting bolt is used to limit the rotating arm from rotating into the main machine station, and the second limiting bolt is used to limit the rotating arm from rotating into the charging cooling station.

4. The tire unloading arm driving device according to claim 3, characterized in that: A rotating shaft is arranged at the rotating center of the rotating arm, and two ends of the rotating shaft are installed on the bearing seats on the lifting bracket via bearings.

5. The tire unloading arm driving device according to claim 4, characterized in that: The first flange plate is connected to the lifting bracket via a first connecting seat, and the first flange plate can rotate around the axis of its ear axis on the first connecting seat; the second flange plate is connected to the rotating arm via a second connecting seat, and the second flange plate can rotate around the axis of its ear axis on the second connecting seat.

6. The tire unloading arm driving device according to claim 5, characterized in that: The cross section of the middle connecting plate is square, there are two first guide rods, and the two first guide rods are respectively installed at opposite corners of the middle connecting plate; there are two second guide rods, and the two second guide rods are respectively installed at another opposite corner of the middle connecting plate.

7. A tire vulcanizing machine, characterized in that: It comprises a column, a robot claw plate and a tire unloading arm driving device as described in any one of claims 1 to 6, wherein the lifting bracket of the tire unloading arm driving device is installed on the linear guide rail of the column, and the robot claw plate is installed on the rotating arm of the tire unloading arm driving device.

8. The tire vulcanizer according to claim 7, characterized in that: The tire unloading arm driving devices are divided into two groups, and the two groups of tire unloading arm driving devices are symmetrically arranged along the center line of the tire vulcanizer.

Images