Die changing device of vulcanizing machine

Abstract

The utility model discloses a die changing device of a vulcanizing machine, which belongs to the technical field of vulcanizing machines and comprises a die connecting plate connected with a die. A pot cover is arranged above the mold connecting plate, a plurality of quick-change devices are circumferentially and uniformly distributed on the pot cover, each quick-change device comprises a pull rod, a plurality of communicating holes are circumferentially and uniformly distributed on the pot cover corresponding to the pull rod, and the pull rod penetrates through the communicating holes and extends to the bottom of the pot cover; the pull rod is connected with a swing driving device, the swing driving device can drive the pull rod to rotate, the pull rod is further connected with a lifting driving device, and the lifting driving device can drive the pull rod to do lifting motion; t-shaped blocks are arranged at the lower ends of the pull rods, a plurality of long slotted holes are evenly distributed in the circumference of the die connecting plate, and the T-shaped block of each quick-change device can be matched with the corresponding long slotted hole and stretch into the bottom of the long slotted hole. By means of the structure, a worker does not need to climb to the vulcanizing machine to replace and connect the mold, and the problems that mold mounting and dismounting are tedious, and the safety risk of climbing operation is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vulcanizing machines, in particular to a mold changing device for a vulcanizing machine. Background Art

[0002] When installing or removing the mold of the current tire vulcanizer, the on-site operator is usually required to carry the corresponding wrench and climb up to the upper pot cover to install or remove the connecting bolts used to connect the vulcanizer and the mold. This is not only labor-intensive but also poses a great safety hazard.

[0003] Although the existing molds and the quick device of the vulcanizer adopt the lower opening mold with lighter weight, there are still problems such as complex structure, high failure rate and high cost.

[0004] In view of the above problems in the prior art, the utility model designs and manufactures a vulcanizing machine mold changing device to overcome the above defects. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a vulcanizer mold changing device, which eliminates the need for manual climbing onto the vulcanizer to replace and connect the molds, thereby eliminating the cumbersome installation and disassembly of the molds and the high safety risks of high-altitude operations.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a vulcanizing machine mold changing device, comprising a mold connecting plate, wherein the mold connecting plate is connected to the mold;

[0007] A pot cover is provided above the mold connecting plate, and a plurality of quick-change devices are evenly distributed on the circumference of the pot cover. The quick-change devices include a pull rod, and a plurality of connecting holes are evenly distributed on the circumference of the pull rod on the pot cover corresponding to the pull rod, and the pull rod passes through the connecting holes and extends to the bottom of the pot cover;

[0008] The pull rod is connected to a swing driving device, and the swing driving device can drive the pull rod to rotate. The pull rod is also connected to a lifting driving device, and the lifting driving device can drive the pull rod to move up and down;

[0009] The lower end of the pull rod is configured as a T-block, and a plurality of long slot holes are evenly distributed on the circumference of the mold connecting plate. Each T-block of the quick-change device can cooperate with the corresponding long slot hole and extend into the bottom of the long slot hole.

[0010] Preferably, the lifting drive device comprises a hollow plunger hydraulic cylinder, the hollow plunger hydraulic cylinder is telescopically provided with an annular push rod, the hollow plunger hydraulic cylinder is connected to the pot cover, and the pull rod can extend through the hollow channel of the hollow plunger hydraulic cylinder;

[0011] It also includes a compression spring flange, which is connected to the pull rod. The end of the annular push rod of the hollow plunger hydraulic cylinder rests on the upper end surface of the compression spring flange. An elastic part is provided between the bottom of the compression spring flange and the pot cover. The elastic part makes the compression spring flange drive the pull rod to move upward.

[0012] Preferably, a cylinder seat is connected between the hollow plunger hydraulic cylinder and the pot cover, a mounting cavity is provided in the cylinder seat, and the compression spring flange and the elastic member are both located in the mounting cavity.

[0013] Preferably, a heat insulation plate is provided between the oil cylinder seat and the pot cover.

[0014] Preferably, an elastic member positioning groove is provided on the lower end surface of the compression spring flange, and one end of the elastic member is located in the elastic member positioning groove.

[0015] Preferably, the swing drive device is installed above the hollow plunger hydraulic cylinder, and the swing drive device includes a swing cylinder, and a matching hole is provided on the swing rod of the swing cylinder, and the upper end of the pull rod can match with the matching hole;

[0016] An axial guide structure is provided between the pull rod and the matching hole, and the pull rod can be guided to rise and fall in the matching hole through the axial guide structure.

[0017] Preferably, the axial guide structure is configured as a key and a keyway, wherein the key is arranged on the outer wall of the pull rod or the inner wall of the matching hole, and the keyway is arranged on the other inner wall of the matching hole or the outer wall of the pull rod.

[0018] Preferably, a sealing device is provided between the pull rod and the communicating hole of the pot cover;

[0019] The sealing device comprises a sealing gland, a sealing ring groove is arranged above the communicating hole, a sealing structure is arranged in the sealing ring groove, and the sealing gland is connected to the pot cover to position the sealing structure in the sealing ring groove.

[0020] Preferably, a detection device is also provided on the pot cover, and the detection device can detect the distance between the pot cover and the mold connecting plate.

[0021] Preferably, a plurality of connection blocks are evenly distributed on the circumference of the upper end surface of the mold connection plate, and the long slot holes are arranged on the connection blocks;

[0022] The bottom of the long slot hole is connected with a large diameter hole, the diameter of the large diameter hole is larger than the bottom length of the T-block, and the T-block can enter the large diameter hole through the long slot hole.

[0023] The utility model is beneficial in that:

[0024] 1. The utility model utilizes a swing cylinder and a hollow plunger hydraulic cylinder to drive the pull rod to rise and fall and swing, and then uses the T-block at the lower end of the pull rod to cooperate with the long slot hole and extend into the bottom of the long slot hole to complete the rapid and automatic connection and separation of the pot cover and the mold connecting plate, eliminating the problems of cumbersome mold installation and disassembly in traditional methods and high safety risks in high-altitude operations.

[0025] 2. The hollow plunger hydraulic cylinder of the utility model drives the pull rod to descend, forcing the elastic member to compress. After the T-block at the lower end of the pull rod extends into the bottom of the long slot hole, the swing cylinder drives the pull rod to rotate, so that the T-block and the long slot hole are staggered. When the pot cover is lifted again, the mold connecting plate can be driven to rise.

[0026] 3. The pull rod of the utility model cooperates with the swing rod of the swing cylinder by means of a key and a key slot. This structure can ensure that the lifting and lowering of the pull rod will not affect the swinging of the swing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a vulcanizing machine mold changing device located on a mold;

[0028] Figure 2 A top view of a mold changing device for a vulcanizing machine;

[0029] Figure 3 A top view of a mold connecting plate of a mold changing device of a vulcanizing machine;

[0030] Figure 4 It is a partial schematic diagram of a mold changing device of a vulcanizing machine;

[0031] Figure 5 It is a top view of the T-block of the utility model extending into the long slot hole;

[0032] Figure 6 It is a top view of the T-block of the utility model when locked with the long slot hole.

[0033] In the figure: 1-pot cover, 2-quick change device, 3-mold, 4-mold connecting plate, 5-connecting block, 6-long slot hole, 7-connecting hole, 8-pull rod, 9-swing cylinder, 10-hollow plunger hydraulic cylinder, 11-annular push rod, 12-cylinder seat, 13-compression spring flange, 14-butterfly spring, 15-insulation board, 16-sealing cover, 17-sealing structure, 18-T-block. DETAILED DESCRIPTION

[0034] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0035] like Figures 1 to 6As shown, a vulcanizer mold changing device includes a mold connecting plate 4, which is connected to the mold 3; a pot cover 1 is provided above the mold connecting plate 4, and a plurality of quick-changing devices 2 are evenly distributed on the circumference of the pot cover 1, which can be specifically distributed at 4, 6 or 8 locations, and the distribution number is related to the structural arrangement of the vulcanizer pot cover 1 and the weight of the mold 3. The quick-changing device 2 includes a pull rod 8, and a plurality of connecting holes are evenly distributed on the circumference of the pot cover 1 corresponding to the pull rod 8. The pull rod 8 passes through the connecting hole and extends to the bottom of the pot cover 1 to cooperate with the mold connecting plate 4. The mold connecting plate 4 preferably has connecting holes 7 for molds 3 of different specifications, and molds 3 of different specifications can be connected on one side.

[0036] The pull rod 8 is connected to a swing driving device, which can drive the pull rod 8 to rotate. The pull rod 8 is also connected to a lifting driving device, which can drive the pull rod 8 to move up and down.

[0037] The lower end of the pull rod 8 of the utility model is set as a T-block 18, and a plurality of long slot holes 6 are evenly distributed on the circumference of the mold connecting plate 4. The T-block 18 of each quick-changing device 2 can cooperate with the corresponding long slot hole 6 and extend into the bottom of the long slot hole 6. When the pull rod 8 swings under the drive of the swing driving device, the T-block 18 and the long slot hole 6 are staggered, thereby completing the rapid and automatic connection and separation of the pot cover 1 and the mold connecting plate 4, eliminating the problems of cumbersome installation and disassembly of the mold 3 in the traditional way and high safety risks in high-altitude operations.

[0038] The lifting drive device specifically includes a hollow plunger hydraulic cylinder 10 , which has a retractable annular push rod 11 . The hollow plunger hydraulic cylinder 10 is connected to the pot cover 1 , and the pull rod 8 can extend through the hollow channel of the hollow plunger hydraulic cylinder 10 .

[0039] It also includes a compression spring flange 13, which is connected to the pull rod 8. Specifically, the pull rod 8 is provided with a matching annular groove, and the compression spring flange 13 is clamped in the matching annular groove. When the pull rod 8 moves up and down, it can drive the compression spring flange 13 to move up, and the rotation of the pull rod 8 does not affect the original position of the compression spring flange 13. The end of the annular push rod 11 of the hollow plunger hydraulic oil cylinder 10 of the utility model is against the upper end surface of the compression spring flange 13, and an elastic member is provided between the bottom of the compression spring flange 13 and the pot cover 1. The elastic member makes the compression spring flange 13 drive the pull rod 8 to move upward. The hollow plunger hydraulic oil cylinder 10 drives the pull rod 8 to descend, which will force the elastic member to compress, and the T-block 18 at the lower end of the pull rod 8 will enter the bottom of the long slot hole 6 through the long slot hole 6.

[0040] The swing drive device is installed above the hollow plunger hydraulic cylinder 10. The swing drive device includes a swing cylinder 9. The swing cylinder 9 is a cylinder that can realize fixed-angle rotational movement within a fixed angle range. Its selectable rotation range is usually 0° to 270°. According to the different driving structures, it can be divided into gear rack type, spiral type, and blade type. A matching hole is provided on the swing rod of the swing cylinder 9. The upper end of the pull rod 8 can cooperate with the matching hole. An axial guide structure is provided between the pull rod 8 and the matching hole. The pull rod 8 can be guided to rise and fall in the matching hole through the axial guide structure. The swing cylinder 9 of the utility model can drive the pull rod 8 to swing back and forth between 0° and 90°.

[0041] The axial guide structure is specifically configured as a key and a keyway, the key is arranged on the outer wall of the pull rod 8 or the inner wall of the matching hole, the keyway is arranged on the inner wall of another matching hole or the outer wall of the pull rod 8, the pull rod 8 and the swing rod of the swing cylinder 9 are matched with the key and the keyway, so that the lifting and lowering of the pull rod 8 will not affect the swinging of the swing cylinder 9, after the T-block 18 at the lower end of the pull rod 8 extends into the bottom of the long slot hole 6, the swing cylinder 9 drives the pull rod 8 to rotate, so that the T-block 18 is staggered with the long slot hole 6, and when the pot cover 1 is lifted again, it can drive the mold connecting plate 4 to rise.

[0042] In order to ensure that the hollow plunger hydraulic cylinder 10 has sufficient stroke and that the compression spring flange 13 and the elastic member have sufficient installation space, a cylinder seat 12 is preferably connected between the hollow plunger hydraulic cylinder 10 and the pot cover 1, and an installation cavity is provided in the cylinder seat 12, and the compression spring flange 13 and the elastic member are both located in the installation cavity.

[0043] A heat insulation plate 15 is preferably provided between the oil cylinder seat 12 and the pot cover 1, and its function is to isolate the heat of the pot cover 1 from being transferred to the hollow plunger hydraulic oil cylinder 10 of the quick-change device 2, thereby reducing the temperature of the hollow plunger hydraulic oil cylinder 10 and extending the service life.

[0044] The lower end surface of the compression spring flange 13 is preferably provided with an elastic member positioning groove, one end of the elastic member is located in the elastic member positioning groove, and the elastic member is preferably made of a plurality of butterfly springs 14. The butterfly spring 14 of the utility model can not only limit the downward position of the pull rod 8, but also the butterfly spring 14 does not affect the rotation of the pull rod 8. When the annular push rod of the hollow plunger hydraulic cylinder 10 is extended, the hollow plunger hydraulic cylinder 10 can drive the compression spring flange 13 to move downward and drive the pull rod 8 to move downward at the same time. When the annular push rod of the hollow plunger hydraulic cylinder 10 is retracted or the hydraulic pressure of the hollow plunger hydraulic cylinder 10 is withdrawn, the butterfly spring 14 can drive the compression spring flange 13 to move upward and drive the pull rod 8 to move upward at the same time.

[0045] In addition, the butterfly spring 14 of the utility model can also drive the compression spring flange 13 and the pull rod 8 to move upward, offset the gap between the mold connecting plate 4 and the pot cover 1, and apply a pre-tightening force between the pot cover 1, the pull rod 8 and the mold connecting plate 4, so that after locking the mold, the lifting and lowering movement of the pot cover 1 during the vulcanization process will not affect the close fit between the pull rod 8 and the mold connecting plate 4.

[0046] A sealing device is preferably provided between the pull rod 8 of the utility model and the connecting hole of the pot cover 1. The sealing device can prevent leakage of high-temperature and high-pressure gas in the steamer during the vulcanization process. The sealing device includes a sealing gland 16. A sealing ring groove is provided above the connecting hole. A sealing structure 17 is provided in the sealing ring groove. The sealing gland 16 is connected to the pot cover 1 to position the sealing structure 17 in the sealing ring groove. At this time, the sealing gland 16 will be subjected to the pressure of the butterfly spring 14.

[0047] The pot cover 1 is also provided with a detection device, which can detect the distance between the pot cover 1 and the mold connecting plate 4, and also includes a position detection sensor, which can detect the extension length of the hollow plunger hydraulic cylinder 10. The controller can collect the feedback signals from the detection device and the position detection sensor so as to control the actions of the hollow plunger hydraulic cylinder 10 and the swing cylinder 9.

[0048] The upper end surface of the mold connecting plate 4 of the utility model is preferably connected with a plurality of connecting blocks 5 evenly distributed around the circumference, and long slot holes 6 are set on the connecting blocks 5; the bottom of the long slot holes 6 is connected with a large diameter hole, and the diameter of the large diameter hole is larger than the bottom length of the T-block 18, and the T-block 18 can enter the large diameter hole through the long slot holes 6.

[0049] It is preferred to set a lifting guide positioning structure between the pot cover 1 and the mold connecting plate 4. For example, a positioning ring can be set on the mold connecting plate 4, and a positioning pin that cooperates with the positioning ring can be set at the bottom of the pot cover 1, so as to improve the alignment of the pull rod 8 and the long slot hole 6 on the mold connecting plate 4.

[0050] The specific installation process of this utility model:

[0051] 1. First, connect the mold 3 connection plate to the mold 3 in the mold 3 assembly area;

[0052] 2. Place the mold 3 and the mold 3 connecting plate on the vulcanizer, and connect the mold 3 to the vulcanizer base with bolts. Then move the pot cover 1 to the mold opening position above the vulcanizer, and drive the pot cover 1 down through the hydraulic cylinder. During the descent, the relative position between the mold connecting plate 4 and the upper pot cover 1 is positioned by the positioning device, so as to ensure that the pull rod 8 corresponds to the corresponding long slot hole 6 on the mold connecting plate 4. When the pot cover 1 contacts the upper end surface of the mold connecting plate 4, the detection device is triggered, and the controller receives the signal to control the pot cover 1 to stop descending;

[0053] 3. The hollow plunger cylinder is filled with oil to push out the annular push rod 11, driving the compression spring flange 13 to move downward. The compression spring flange 13 will drive the pull rod 8 to move downward, and the T-block at the lower end of the pull rod 8 extends into the corresponding long slot hole 6 of the mold connecting plate 4. After the position detection sensor detects that the hollow plunger hydraulic cylinder 10 is pushed out to the set position, the pushing action is stopped, and then the swing cylinder 9 is controlled to drive the pull rod 8 to rotate 90 degrees (from the 0° position to the 90° position). The T-block 18 and the long slot hole 6 of the mold connecting plate 4 are locked. After reaching the locked position, the hollow plunger cylinder begins to release force, and the pull rod 8 is driven by the butterfly spring 14 to move up to the gap between the pull rod 8 and the mold connecting plate 4. The gap is thus eliminated and sufficient preload is maintained to complete the installation of the mold 3.

[0054] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A vulcanizing machine mold changing device, characterized in that: It comprises a mould connecting plate (4), wherein the mould connecting plate (4) is connected to the mould (3); A pot cover (1) is provided above the mold connecting plate (4), a plurality of quick-change devices (2) are evenly distributed on the circumference of the pot cover (1), the quick-change devices (2) include a pull rod (8), a plurality of connecting holes are evenly distributed on the circumference of the pot cover (1) corresponding to the pull rod (8), and the pull rod (8) passes through the connecting holes and extends to the bottom of the pot cover (1); The pull rod (8) is connected to a swing drive device, and the swing drive device can drive the pull rod (8) to rotate. The pull rod (8) is also connected to a lifting drive device, and the lifting drive device can drive the pull rod (8) to move up and down; The lower end of the pull rod (8) is configured as a T-shaped block (18), and a plurality of long slot holes (6) are evenly distributed on the circumference of the mold connecting plate (4). The T-shaped block (18) of each quick-change device (2) can cooperate with the corresponding long slot hole (6) and extend into the bottom of the long slot hole (6).

2. A vulcanizing machine mold changing device according to claim 1, characterized in that: The lifting drive device comprises a hollow plunger hydraulic cylinder (10), the hollow plunger hydraulic cylinder (10) is telescopically provided with an annular push rod (11), the hollow plunger hydraulic cylinder (10) is connected to the pot cover (1), and the pull rod (8) can extend through the hollow passage of the hollow plunger hydraulic cylinder (10); It also includes a compression spring flange (13), the compression spring flange (13) is connected to the pull rod (8), the end of the annular push rod (11) of the hollow plunger hydraulic cylinder (10) is against the upper end surface of the compression spring flange (13), and an elastic member is provided between the bottom of the compression spring flange (13) and the pot cover (1), and the elastic member enables the compression spring flange (13) to drive the pull rod (8) to have a tendency to move upward.

3. A vulcanizing machine mold changing device according to claim 2, characterized in that: A cylinder seat (12) is connected between the hollow plunger hydraulic cylinder (10) and the pot cover (1), and a mounting cavity is provided in the cylinder seat (12), and the compression spring flange (13) and the elastic member are both located in the mounting cavity.

4. A vulcanizing machine mold changing device according to claim 3, characterized in that: A heat insulation board (15) is provided between the oil cylinder seat (12) and the pot cover (1).

5. A vulcanizing machine mold changing device according to claim 2, characterized in that: An elastic member positioning groove is provided on the lower end surface of the compression spring flange (13), and one end of the elastic member is located in the elastic member positioning groove.

6. A vulcanizing machine mold changing device according to claim 2, characterized in that: The swing drive device is installed above the hollow plunger hydraulic cylinder (10), and the swing drive device comprises a swing cylinder (9). A matching hole is provided on the swing rod of the swing cylinder (9), and the upper end of the pull rod (8) can match with the matching hole; An axial guide structure is provided between the pull rod (8) and the matching hole, and the pull rod (8) can be guided to rise and fall in the matching hole through the axial guide structure.

7. A vulcanizing machine mold changing device according to claim 6, characterized in that: The axial guide structure is configured as a key and a keyway, wherein the key is arranged on the outer wall of the pull rod (8) or the inner wall of the matching hole, and the keyway is arranged on the inner wall of the other matching hole or the outer wall of the pull rod (8).

8. A vulcanizing machine mold changing device according to claim 1, characterized in that: A sealing device is provided between the pull rod (8) and the communicating hole of the pot cover (1); The sealing device comprises a sealing gland (16), a sealing ring groove is provided above the communicating hole, a sealing structure (17) is provided in the sealing ring groove, and the sealing gland (16) is connected to the pot cover (1) to position the sealing structure (17) in the sealing ring groove.

9. A vulcanizing machine mold changing device according to claim 2, characterized in that: The pot cover (1) is also provided with a detection device, and the detection device is capable of detecting the distance between the pot cover (1) and the mold connecting plate (4); It also comprises a position detection sensor, which is capable of detecting the extension length of the hollow plunger hydraulic cylinder (10).

10. A vulcanizing machine mold changing device according to claim 1, characterized in that: A plurality of connection blocks (5) are evenly distributed and connected to the circumference of the upper end surface of the mold connection plate (4), and the long slot holes (6) are arranged on the connection blocks (5); The bottom of the long slot hole (6) is connected to a large diameter hole, the diameter of the large diameter hole is greater than the bottom length of the T-shaped block (18), and the T-shaped block (18) can enter the large diameter hole through the long slot hole (6).

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