Agricultural tire bladder vulcanizing machine

Abstract

The invention relates to the technical field of vulcanizing machines, in particular to an agricultural tire bladder vulcanizing machine which solves the problems that an oil cylinder of outer tire vulcanizing process equipment on existing mechanical equipment moves slowly and is troublesome to install, and the agricultural tire bladder vulcanizing machine comprises a rack, a hydraulic station and a plurality of groups of punching assemblies, the device sequentially comprises a ring seat, a middle platform, an upper platform and a main oil cylinder from bottom to top in the vertical direction, and longitudinal displacement adjustment of the main oil cylinder is achieved through a push-pull assembly at the top of a rack. Piston rods of the side pulling oil cylinders are connected with the upper platform to drive the upper platform to lift; the adjusting assembly is used for dynamically adjusting the stamping stroke of the main oil cylinder. The invention has the advantages that: a single main oil cylinder is changed into a segmented design, so that the working efficiency is improved, the lifting time of the vulcanizing machine is shortened, a user does not need to dig down a foundation, and the use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of vulcanizers, specifically to an agricultural tire bladder vulcanizer. Background Art

[0002] A vulcanization bladder is a hollow thin-walled rubber product of a tire vulcanizer, which is used to be installed in the inner cavity of a green tire to be vulcanized and then filled with a heating medium to cooperate with the vulcanizer for shaping and vulcanization operations.

[0003] For the production of the vulcanization process of the outer tires on most motorcycles, electric vehicles, and small agricultural machinery and equipment, there are generally two main structural forms of similar products:

[0004] 1. The plunger cylinder is installed at the bottom of the machine. During operation, the cylinder plunger moves upward from bottom to top. Due to the large stroke (about 1400 mm), it walks slowly, has low efficiency, and is troublesome to install. The user needs to dig a foundation to install the cylinder.

[0005] 2. A single piston cylinder is installed at the top of the equipment. During operation, the cylinder piston moves downward from top to bottom. The disadvantage is also that the stroke is large (about 1400 mm), it walks slowly, and there is a high operation risk during transportation and on-site installation. Summary of the Invention

[0006] The present invention provides an agricultural tire bladder vulcanizer to solve the problems of slow movement of the cylinder and troublesome installation of the existing outer tire vulcanization process equipment on mechanical equipment.

[0007] To solve the above technical problems, the technical solution provided by the present invention is: an agricultural tire bladder vulcanizer, including a frame, adopting a frame-type pressure-bearing structure; a hydraulic station, arranged at the rear side of the frame; a plurality of stamping assemblies, which successively include, from bottom to top in the vertical direction:

[0008] A ring seat, fixed to the bottom of the frame;

[0009] A middle platform, slidably connected to the inner rail of the frame through sliders on both sides, and guide rods are arranged on both sides of the middle platform;

[0010] An upper platform, slidably connected to the inner rail of the frame through sliders on both sides, and slidably connected to the guide rods through guide blocks on both sides. A limit bolt is arranged at the top of the guide rod;

[0011] A main cylinder, realizing longitudinal displacement adjustment of the main cylinder through a push-pull assembly at the top of the frame;

[0012] Side pull cylinders, symmetrically arranged at the top of the frame, and their piston rods are connected to the upper platform to drive the upper platform to lift and lower;

[0013] An adjustment assembly, arranged at the center of the upper platform, for dynamically adjusting the stamping stroke of the main cylinder.

[0014] The present invention is further described as follows. The pushing and pulling assembly includes:

[0015] A top platform, fixed to the top of the frame, with a chute provided at its bottom, and the top platform extends towards the rear side of the frame;

[0016] A moving plate, slidably disposed in the chute and fixedly connected to the main oil cylinder;

[0017] A pushing and pulling cylinder, disposed at the lower side of the outer end of the top platform, and its piston rod is connected to the moving plate;

[0018] A through hole, penetrating through the front side of the top platform, for the adjusting assembly to pass through.

[0019] The present invention is further described as follows. The adjusting assembly includes:

[0020] An adjusting column, vertically fixed to the center of the upper platform;

[0021] An adjusting screw rod, penetrating through the adjusting column and achieving lifting adjustment through a screw pair;

[0022] A bearing plate, fixed to the upper end of the adjusting screw rod, and can abut against the end of the piston rod of the main oil cylinder.

[0023] The present invention is further described as follows. Molds for vulcanization are provided on the surfaces of the middle platform opposite to the ring seat and on the surfaces of the upper platform opposite to the middle platform; an ejection mechanism for assisting demolding is also provided on the middle platform and the ring seat, and the ejection mechanism is driven by ejection cylinders disposed on the front and rear sides of the mold.

[0024] The present invention is further described as follows. Central cylinders for coaxial positioning are provided at the centers of both the ring seat and the middle platform, and the central cylinders are used to fix the preformed rubber blank of the tire bladder.

[0025] The present invention is further described as follows. A through hole is provided directly above the through hole corresponding to the top of the frame, and the through hole is for the adjusting assembly to pass through.

[0026] The advantages of the present invention are as follows: The present invention changes the single main oil cylinder to a segmented design to improve work efficiency; the stroke of the main oil cylinder is shortened, and the height adjustment mechanism is composed of a column and a screw rod. The height adjustment mechanism can adjust the height according to different molds to shorten the stroke of the oil cylinder;

[0027] The pushing and pulling assembly of the main cylinder is composed of a pushing and pulling cylinder and a top platform. When the middle platform descends to a specified position, the pushing and pulling cylinder is activated to push the main oil cylinder to the center position of the frame. The fast side-pulling oil cylinder can achieve the fast lifting and lowering of the upper platform, improving efficiency;

[0028] Through structural adjustment, the lifting time of the vulcanizer is shortened, and the design with the main oil cylinder above eliminates the need for the user to dig the foundation downward. It can be directly placed on the horizontal ground, replacing the traditional design with the oil cylinder below. Workers no longer need to stand on an additional elevated platform to pick up and place products, reducing the operating height of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic plan view of the present invention.

[0030] Figure 2 It is a schematic three-dimensional view of the present invention.

[0031] Figure 3 It is a top view of the present invention.

[0032] Figure 4 It is a side view of the present invention.

[0033] Figure 5 It is a schematic view of the top table structure of the present invention.

[0034] As shown in the figure: 1. Frame; 2. Hydraulic station; 3. Stamping assembly; 4. Pushing and pulling assembly; 5. Adjusting assembly; 6. Ejecting mechanism; 7. Central column; 31. Ring seat; 32. Middle platform; 33. Upper platform; 34. Main oil cylinder; 35. Side pulling oil cylinder; 41. Top table; 42. Moving plate; 43. Pushing and pulling cylinder; 44. Through hole; 51. Adjusting column; 52. Adjusting screw rod; 53. Bearing plate; 61. Ejecting cylinder; 101. Through hole; 103. Slide rail; 301. Slide block; 320. Guide rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The present invention will be further described in detail below with reference to the accompanying drawings.

[0036] Combined with the attached Figures 1-5 , the agricultural tire bladder vulcanizer includes a frame 1, a hydraulic station 2, multiple groups of stamping assemblies 3, a main oil cylinder 34, a side pulling oil cylinder 35, an adjusting assembly 5, and a pushing and pulling assembly 4.

[0037] The frame 1 adopts a frame-type pressure-bearing structure welded with high-strength steel, and vertical slide rails 103 are provided inside.

[0038] The hydraulic station 2 is arranged at the rear side of the frame 1 and is connected to the main oil cylinder 34, the side pulling oil cylinder 35, and the ejecting cylinder 61 through pipelines.

[0039] The stamping assembly 3 is divided into three layers vertically from bottom to top:

[0040] Ring seat 31: Fixed to the bottom of the frame 1, with a central column 7 coaxially positioned at the center.

[0041] Middle platform 32: It is slidably connected to the slide rails 103 of the frame 1 through the sliders 301 on both sides. Guide rods 320 are provided on both sides. Limit bolts are provided at the top ends of the guide rods 320. Molds for vulcanization are installed on the lower surface of the upper platform 33, the upper and lower surfaces of the middle platform 32, and the upper surface of the ring seat 31. Electric heating elements are embedded in the molds. A central column 7 is provided at the center of the middle platform 32, which is coaxially fitted with the central column 7 of the ring seat 31.

[0042] Upper platform 33: It is slidably connected to the slide rails 103 through the sliders 301 and is slidably fitted with the guide rods 320 of the middle platform 32 through the guide blocks.

[0043] The main oil cylinder 34 realizes longitudinal displacement adjustment through the push-pull assembly 4:

[0044] The push-pull assembly 4 includes a top platform 41, a moving plate 42, and a push-pull cylinder 43. The top platform 41 is fixed to the top of the frame 1, and a chute is provided at the bottom and extends to the rear side of the frame 1; the moving plate 42 is slidably arranged in the chute and is flange-connected to the main oil cylinder 34; the push-pull cylinder 43 is installed on the lower side of the outer end of the top platform 41, and its piston rod is hinged to the moving plate 42 to drive the main oil cylinder 34 to move back and forth. A through hole 44 penetrates the front side of the top platform 41 for the bearing plate 53 of the adjustment assembly 5 to pass through.

[0045] The adjustment assembly 5 includes:

[0046] Adjustment column 51: Vertically welded to the center of the upper platform 33.

[0047] Adjustment screw rod 52: Passes through the adjustment column 51 and realizes lifting adjustment through a screw pair, and a bearing plate 53 is fixed at the top end.

[0048] Bearing plate 53: Abuts against the end of the piston rod of the main oil cylinder 34. By rotating the adjustment screw rod 52, the height of the bearing plate 53 is changed, so as to realize the dynamic adjustment of the stamping stroke of the main oil cylinder 34.

[0049] Ejector holes are provided on the front and rear sides of the molds of the ring seat 31 and the middle platform 32. The ejector cylinder 61 pushes the vulcanized tire bladder to demold through the ejector rod passing through the ejector hole. The ejector cylinder 61 is independently controlled by the hydraulic station 2 and acts synchronously during demolding to avoid bladder deformation.

[0050] In a specific implementation case, the preformed capsule embryo is sleeved on the central column 7 to ensure coaxial positioning; the side-pulling oil cylinder 35 drives the upper platform 33 to move downward (at this time, the main oil cylinder 34 stays behind the frame 1), the middle platform 32 presses on the ring seat 31, the guide rod 320 cooperates with the guide block for guiding, and the upper platform 33 slides onto the middle platform 32 to close the three-layer mold; the main oil cylinder 34 is adjusted to a preset position through the push-pull assembly 4, the push-pull cylinder 43 is started to drive the moving plate 42 to move the main oil cylinder 34 to the axis of the central column 7, and the piston rod of the main oil cylinder 34 presses down the pressure-bearing plate 53 (the best state is that the distance between the piston rod of the main oil cylinder 34 and the upper plane of the pressure-bearing plate 53 is 10 mm, and at this time, the main oil cylinder 34 can quickly apply pressure), and start to apply pressure to the mold to provide vulcanization pressure for the stamping assembly 3; the mold is heated to complete vulcanization.

[0051] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention creation, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. Agricultural tire bladder vulcanizer, characterized by: The invention comprises a frame (1) which adopts a frame-type pressure-bearing structure; a hydraulic station (2) which is arranged at the rear side of the frame (1); and a plurality of stamping components (3) which comprise, in order from bottom to top in a vertical direction: A ring seat (31) is fixed to the bottom of the frame (1); The middle platform (32) is slidably connected to the slide rail (103) on the inner side of the frame (1) through sliders (301) on both sides, and guide rods (320) are provided on both sides of the middle platform (32); The upper platform (33) is slidably connected to the slide rail (103) on the inner side of the frame (1) through the sliders (301) on both sides, and is slidably connected to the guide rod (330) through the guide blocks on both sides, and the top of the guide rod (320) is provided with a limit bolt; A main oil cylinder (34), wherein longitudinal displacement adjustment of the main oil cylinder (34) is achieved through a push-pull assembly (4) on the top of the frame (1); The side-pull cylinder (35) is symmetrically arranged on the top of the frame (1), and its piston rod is connected to the upper platform (33) to drive the upper platform (33) to rise and fall; the adjustment component (5) is arranged at the center of the upper platform (33), and the adjustment component (5) is used to dynamically adjust the stamping stroke of the main cylinder (34).

2. The agricultural tire bladder vulcanizer according to claim 1, characterized in that: The push-pull assembly (4) comprises: A top platform (41) is fixed to the top of the frame (1), a slide groove is provided at the bottom thereof, and the top platform (41) extends toward the rear side of the frame (1); A movable plate (42) is slidably disposed in the slide groove and fixedly connected to the main oil cylinder (34); A push-pull cylinder (43) is arranged at the lower side of the outer end of the top platform (41), and its piston rod is connected to the moving plate (42); A through hole (44) passes through the front side of the top platform (41) for the adjustment component (5) to pass through.

3. The agricultural tire bladder vulcanizer according to claim 1, characterized in that: The regulating component (5) comprises: An adjusting column (51) is vertically fixed to the center of the upper platform (33); An adjusting screw rod (52) passes through the adjusting column (51) and is adjusted up and down through a threaded pair; The pressure plate (53) is fixed to the upper end of the adjusting screw rod (52) and can abut against the end of the piston rod of the main oil cylinder (34).

4. The agricultural tire bladder vulcanizer according to claim 1, characterized in that: The surfaces of the middle platform (32) opposite to the ring seat (31) and the surfaces of the upper platform (33) opposite to the middle platform (32) are both provided with molds for vulcanization; the middle platform (32) and the ring seat (31) are also provided with an ejection mechanism (6) for assisting demoulding, and the ejection mechanism (6) is driven by an ejection cylinder (61) provided on the front and rear sides of the mold.

5. The agricultural tire bladder vulcanizer according to claim 1, characterized in that: The centers of the ring seat (31) and the middle platform (32) are both provided with a coaxially positioned central column (7), and the central column (7) is used to fix the preformed rubber blank of the tire bladder.

6. The agricultural tire bladder vulcanizer according to claim 1, characterized in that: A through hole (101) is provided at the top of the frame (1) just above the corresponding through hole (44), and the through hole (101) is used for the adjustment component (5) to pass through.

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