Balance type hydraulic dual-mold vulcanizing machine

Abstract

The invention provides a balance type hydraulic dual-mold vulcanizing machine which can be suitable for production of all-steel tires and can guarantee repeated precision. Comprising a base, a mold opening and closing oil cylinder, a guide assembly and a pressurizing assembly, the guide assembly comprises a guide column and a guide sleeve arranged on the guide column in a sleeving mode, supporting legs are installed on the bottom face of the base, the pressurizing assembly is installed on the base, stand columns are installed at the two ends of the base, a connecting beam is connected between the stand columns at the two ends, and the connecting beam is connected with the base. The guide pillar is fixedly connected between the base and the connecting beam, the cross beam is fixedly connected with the guide sleeve, an upper support penetrating through the connecting beam is installed on the cross beam, a piston rod of the mold opening and closing oil cylinder installed on the base penetrates through the cross beam and then extends into the upper support, and the guide sleeve is fixedly connected with the guide pillar. The top end of the piston rod is fixedly connected with the upper support, and the mold opening and closing oil cylinder drives the cross beam to move along the guide columns so as to achieve mold opening and closing actions.

Description

Technical Field

[0001] The invention relates to the technical field of vulcanizing machines, in particular to a balance type hydraulic double-mode vulcanizing machine. Background Art

[0002] The vulcanizing machine is a machine that vulcanizes various rubber and plastic products. It has functions such as timed mold locking, automatic pressure replenishment, automatic temperature control, automatic timing, and time alarm.

[0003] A balance vulcanizer generally has two sets of molds horizontally arranged on one machine, and the two sets of molds rise and fall synchronously to make the structure more compact, improve production efficiency, and save space. However, due to the balance structure, the balance vulcanizers used in China are subject to relatively large bending deflections and can only be used for the production of semi-steel tires (48" or 52"), and cannot meet the production of full-steel tires (65" or 66"). In addition, the lower pallet is often used for pressurization. Although the repetition accuracy can meet the production requirements, due to the gap deviation between the guide parts, the production method in which the lower mold moves up and down during the pressurization process cannot guarantee high repetition accuracy. Summary of the invention

[0004] In view of the above problems, the present invention provides a balance type hydraulic dual-mode vulcanizer, which can adapt to the production of all-steel tires and can ensure high repeatability.

[0005] The present invention adopts the following technical scheme: a balance type hydraulic double-mode vulcanizer, comprising a base, a mold opening and closing cylinder, a guide assembly, and a pressure assembly; the guide assembly comprises a guide column and a guide sleeve mounted on the guide column; the bottom surface of the base is provided with a support leg; the pressure assembly is mounted on the base; columns are mounted at both ends of the base; a connecting beam is connected between the columns at both ends; the guide column is fixedly connected between the base and the connecting beam; the cross beam is fixedly connected to the guide sleeve; an upper support penetrating the connecting beam is mounted on the cross beam; a piston rod of the mold opening and closing cylinder mounted on the base passes through the cross beam and extends into the upper support; the top end of the piston rod is fixedly connected to the upper support; the mold opening and closing cylinder drives the cross beam to move along the guide column to realize the mold opening and closing action.

[0006] Further, both ends of the crossbeam are equipped with a mold adjustment mechanism, the mold adjustment mechanism includes a mold adjustment motor and a mold adjustment chain, a plurality of upper pull rods are respectively provided at both ends of the crossbeam, the upper pull rods pass through the crossbeam and are threadedly connected with the mold adjustment nut, the mold adjustment nut is fixedly connected with the mold adjustment sprocket, the mold adjustment motor is fixed to the crossbeam through a bracket, a driving sprocket is installed on the crossbeam, and the mold adjustment motor is drivingly connected with the mold adjustment sprocket through the mold adjustment chain and the driving sprocket;

[0007] Furthermore, the upper support is a hollow structure, and the top end of the piston rod is fixedly connected to the upper support via a pin;

[0008] Furthermore, a safety mechanism is installed on the upper part of the guide sleeve, and the safety mechanism includes a telescopic cylinder, and the telescopic cylinder is connected to a latch, and an opening for accommodating the latch is provided on the guide column corresponding to the extension direction of the latch, and a mounting opening is provided on the upper support corresponding to the position of the telescopic cylinder;

[0009] Further, the pressurizing assembly includes a pressurizing oil cylinder, a number of clamping rings corresponding to the upper pull rods are provided at both ends of the base, the pressurizing oil cylinder is fixed to the bottom surface of the base corresponding to the clamping rings, a heat insulation pad is provided between the pressurizing oil cylinder and the base, and the cylinder rod of the pressurizing oil cylinder passes through the base and is connected to the clamping rings;

[0010] Furthermore, a connecting plate is mounted on the clamping ring, and a connecting rod is connected between the connecting plates on two adjacent clamping rings via a connecting shaft, and the connecting rod is connected to a loosening and locking cylinder, and the loosening and locking cylinder is mounted on the base;

[0011] Further, the snap ring comprises a first half snap ring and a second half snap ring, and the first half snap ring and the second half snap ring cooperate with each other to form a cylindrical snap ring;

[0012] Furthermore, a clamping groove is provided on the inner wall of the clamping ring, and a clamping tooth corresponding to the clamping groove is provided on the bottom of the upper pull rod;

[0013] Furthermore, a protective baffle is installed on the outer side of the clamping ring located on one side of the base, the protective baffle is in an arc shape, a baffle is opened on the protective baffle, and the connecting plate passes through the baffle to be connected with the clamping ring;

[0014] Furthermore, the supporting legs are divided into main supporting legs and auxiliary supporting legs, the main supporting legs and the auxiliary supporting legs are both fixedly connected to the bottom surface of the base, and the bottoms of the main supporting legs and the auxiliary supporting legs are both connected to the ground.

[0015] The beneficial effect of the present invention is that it forms a lifting guide structure through the columns and guide columns, which has stronger rigidity and can adapt to the production of all-steel tires. There is no need to worry about the deformation of the guide component parts due to pressurization, and the repetition accuracy is higher. In addition, the pressurization component is installed on the base, and the opening and closing mold cylinder drives the crossbeam to move along the guide column to realize the opening and closing mold action. During the pressurization and production process, the base does not move, the repetition accuracy is more guaranteed, and it has better economic use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 yes Figure 1 It is a schematic diagram of the enlarged structure at position I;

[0018] Figure 3 It is a front view of the present invention;

[0019] Figure 4 yes Figure 3 AA view in the figure;

[0020] Figure 5 yes Figure 3 AA section view in. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1 to Figure 5 As shown, the present invention is a balance type hydraulic double-mode vulcanizer, including a base 1, a mold opening and closing cylinder 2, a guide assembly, and a pressure assembly. The guide assembly includes a guide column 3 and a guide sleeve 4 sleeved on the guide column 3. The guide sleeve 4 and its crossbeam 7 can move along the direction of the guide column 3 to guide the lifting and lowering movement of the crossbeam 7; the bottom surface of the base 1 is equipped with legs, the pressure assembly is installed on the base 1, and columns 5 are installed at both ends of the base 1. A connecting beam 6 is connected between the columns 5 at both ends. The guide column 3 is fixedly connected between the base 1 and the connecting beam 6, the crossbeam 7 is fixedly connected to the guide sleeve 4, and an upper support 8 that passes through the connecting beam 6 is installed on the crossbeam 7. The piston rod 9 of the mold opening and closing cylinder 2 installed on the base 1 passes through the crossbeam 7 and then extends into the upper support 8. The top end of the piston rod 9 is fixedly connected to the upper support 8, and the mold opening and closing cylinder 2 drives the crossbeam 7 to move along the guide column 3 to realize the mold opening and closing action.

[0023] Both ends of the crossbeam 7 are equipped with a mold adjustment mechanism, which includes a mold adjustment motor 10 and a mold adjustment chain 11. A plurality of upper pull rods 12 are respectively provided at both ends of the crossbeam 7. The upper pull rods 12 are threadedly connected with the mold adjustment nuts 13 after passing through the crossbeam 7. The mold adjustment nuts 13 are fixedly connected with the mold adjustment sprocket 14. In this embodiment, there are 8 upper pull rods 12 and mold adjustment nuts 13 connected thereto. The mold adjustment motor 10 is fixed to the crossbeam 7 through a bracket 15. A drive sprocket 16 is provided on the crossbeam 7. The mold adjustment motor 10 is connected to the mold adjustment sprocket 14 through the mold adjustment chain 11 and the drive sprocket 16. That is, through the mold adjustment chain 11 connects the mold adjustment sprocket 14 of each mold and is driven by the mold adjustment motor 10, which serves as a power source to drive the mold adjustment nut 13 to rotate. Specifically, when molds of different specifications are installed, the mold adjustment motor 10 can drive the mold adjustment chain 11, the driving sprocket 16 and the mold adjustment sprocket 14 to cooperate with each other to drive the mold adjustment nut 13 to rotate. Since there is a thread pair between the upper pull rod 12 and the mold adjustment nut 13, and the upper pull rod 12 cannot rotate, the height of the upper pull rod 12 can be adjusted; the upper support 8 is a hollow structure, and the top end of the piston rod 9 is fixedly connected to the upper support 8 through the pin 17;

[0024] A safety mechanism is installed on the upper part of the guide sleeve 4, which can be used for anti-fall protection at a set position. The safety mechanism includes a telescopic cylinder 18, and the telescopic cylinder 18 is connected to a latch 19. An opening 20 for accommodating the latch 19 is provided on the guide column 3 corresponding to the extending direction of the latch 19, and an installation opening 21 is opened on the upper support 8 at the position corresponding to the telescopic cylinder 18 to accommodate part of the telescopic cylinder 18; through the action of the telescopic cylinder 18 of the safety mechanism, the latch is extended until it is inserted into the opening 20 on the guide column 3, thereby realizing anti-fall protection and ensuring the limit of the set position.

[0025] The pressurizing assembly includes a pressurizing cylinder 22. Both ends of the base 1 are provided with a number of clamping rings corresponding to the upper pull rod 12. The pressurizing cylinder 22 is fixed to the bottom surface of the base 1 corresponding to the clamping ring. An insulating pad 23 is provided between the pressurizing cylinder 22 and the base 1 to isolate heat and ensure a long sealing life of the pressurizing cylinder 22. The cylinder rod of the pressurizing cylinder 22 passes through the base 1 and is connected to the clamping ring.

[0026] A connecting plate 24 is mounted on the snap ring. A connecting rod 26 is connected between the connecting plates 24 on two adjacent snap rings via a connecting shaft 25. The connecting rod 26 is connected to a loose locking cylinder 27. The loose locking cylinder 27 is mounted on the base 1. When the loose locking cylinder 27 is actuated, the connecting rod 26 is driven to move, thereby driving the connecting plate 24 and the snap ring to rotate. The snap ring includes a first half snap ring 28 and a second half snap ring 29. The first half snap ring 28 and the second half snap ring 29 cooperate with each other to form a cylindrical shape. Snap ring; a snap groove 30 is provided on the inner wall of the snap ring, and a snap tooth 31 corresponding to the snap groove 30 is provided at the bottom of the upper pull rod 12. When the snap ring rotates, the upper pull rod 12 and the snap ring can be easily disengaged or locked; a protective baffle 32 is installed on the outer side of the snap ring located on one side of the base 1. The protective baffle 32 is arc-shaped and has a baffle 33. The connecting plate 24 passes through the baffle 33 to be connected to the snap ring, and the snap ring on the corresponding side can be protected by the protective baffle 32.

[0027] The legs are divided into a main leg 34 and an auxiliary leg 35. The main leg 34 and the auxiliary leg 35 are both fixedly connected to the bottom surface of the base 1, and the bottoms of the main leg 34 and the auxiliary leg 35 are both connected to the ground.

[0028] In the present invention, when the equipment is working, under the drive of the mold opening and closing cylinder 2, the crossbeam 7 and the various components thereon perform lifting movements, and the guide assembly plays a guiding role. When the mold is in place, that is, the bottom clamping teeth 31 of the upper pull rod 12 are connected with the clamping groove 30 on the clamping ring, the loosening and locking cylinder 27 drives the clamping ring to rotate, so as to realize the clamping connection between the upper pull rod 12 and the clamping ring, forming a closed loop of force. After that, oil is introduced into the rod cavity of the pressurized cylinder 22, and the cylinder rod drives the clamping ring, the upper pull rod 12 and the crossbeam 7 to press down, so as to realize external pressurization of the mold (not shown in the figure). During this process, the base 1 does not move. In addition, when different molds are loaded, the height of the upper pull rod 12 is driven to rise and fall by the mold adjustment motor 10, so as to realize automatic height adjustment, so that when the stop position of the crossbeam 7 is different, the upper pull rod 12 can always be freely loosely locked with the clamping ring.

[0029] The present invention adopts a reasonable structural arrangement, that is, two columns 5 and two guide columns 3 together form a lifting guide frame, which has stronger rigidity, that is, the rigidity of the guide and lifting frame is enhanced, so that it can meet the production of all-steel tires (65" or 66"). At the same time, by modifying the structure of the pressurizing system, a bottom-up pressurizing method is realized. During the production and pressurizing process, the lower base 1 does not move, and the repeatability accuracy is higher. At the same time, the guide component parts and the upper pull rod 12 are independent and have a longer service life. There is no need to worry about the deformation of the guide component parts due to pressurization. The repeatability accuracy is higher, which can ensure the long-term reliable operation of the equipment. The present invention is equipped with a mold adjustment mechanism, which can adaptively adjust the height of the upper pull rod 12 to adapt to different mold thicknesses, thereby reducing manual adjustment time and reducing errors.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A balance type hydraulic double-mold vulcanizer, comprising a base, a mold opening and closing cylinder, a guide assembly, and a pressurizing assembly, wherein the guide assembly comprises a guide column and a guide sleeve sleeved on the guide column, characterized in that: The bottom surface of the base is provided with supporting legs, the pressurizing assembly is installed on the base, columns are installed at both ends of the base, a connecting beam is connected between the columns at both ends, the guide column is fixedly connected between the base and the connecting beam, the cross beam is fixedly connected to the guide sleeve, an upper support penetrating the connecting beam is installed on the cross beam, the piston rod of the mold opening and closing cylinder installed on the base passes through the cross beam and extends into the upper support, the top end of the piston rod is fixedly connected to the upper support, and the mold opening and closing cylinder drives the cross beam to move along the guide column to realize the mold opening and closing action.

2. A balance type hydraulic double-mode vulcanizing press according to claim 1, characterized in that: Both ends of the crossbeam are equipped with mold adjusting mechanisms, which include a mold adjusting motor and a mold adjusting chain. A plurality of upper pull rods are respectively provided at both ends of the crossbeam. The upper pull rods pass through the crossbeam and are threadedly connected with the mold adjusting nuts. The mold adjusting nuts are fixedly connected with the mold adjusting sprockets. The mold adjusting motor is fixed to the crossbeam through a bracket. A driving sprocket is installed on the crossbeam. The mold adjusting motor is transmission-connected to the mold adjusting sprocket through the mold adjusting chain and the driving sprocket.

3. A balance type hydraulic double-mode vulcanizing press according to claim 1, characterized in that: The upper support is a hollow structure, and the top end of the piston rod is fixedly connected to the upper support via a pin.

4. A balance type hydraulic double-mode vulcanizing press according to claim 1, characterized in that: A safety mechanism is installed on the upper part of the guide sleeve, and the safety mechanism includes a telescopic cylinder, and the telescopic cylinder is connected to a latch. An opening for accommodating the latch is provided on the guide column corresponding to the extending direction of the latch, and an installation opening is opened on the upper support corresponding to the position of the telescopic cylinder.

5. A balance type hydraulic double-mode vulcanizing press according to claim 2, characterized in that: The pressurizing assembly includes a pressurizing cylinder, and both ends of the base are provided with a number of clamping rings corresponding to the upper pull rod. The pressurizing cylinder is fixed to the bottom surface of the base corresponding to the clamping ring. An insulating pad is provided between the pressurizing cylinder and the base, and the cylinder rod of the pressurizing cylinder passes through the base and is connected to the clamping ring.

6. A balance type hydraulic double-mode vulcanizing press according to claim 5, characterized in that: A connecting plate is mounted on the clamping ring, and a connecting rod is connected between the connecting plates on two adjacent clamping rings via a connecting shaft. The connecting rod is connected to a loosening and locking cylinder, and the loosening and locking cylinder is mounted on the base.

7. A balance type hydraulic double-mode vulcanizing press according to claim 5, characterized in that: The clamping ring comprises a first half clamping ring and a second half clamping ring, and the first half clamping ring and the second half clamping ring cooperate with each other to form a cylindrical clamping ring.

8. The balance type hydraulic double-mode vulcanizing press according to claim 5, characterized in that: The inner wall of the clamping ring is provided with a clamping groove, and the bottom of the upper pull rod is provided with a clamping tooth corresponding to the clamping groove.

9. The balance type hydraulic double-mode vulcanizing press according to claim 6, characterized in that: A protective baffle is arranged on the outer side of the clamping ring located at one side of the base. The protective baffle is in an arc shape and has a baffle opening. The connecting plate passes through the baffle opening and is connected to the clamping ring.

10. The balance type hydraulic double-mode vulcanizing press according to claim 1, characterized in that: The supporting legs are divided into main supporting legs and auxiliary supporting legs. The main supporting legs and the auxiliary supporting legs are both fixedly connected to the bottom surface of the base, and the bottoms of the main supporting legs and the auxiliary supporting legs are both connected to the ground.

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