Mold opening and closing structure of electric vulcanizing machine

Abstract

The utility model provides a mold opening and closing structure of an electric vulcanizing machine. The mold opening and closing structure comprises a bottom frame and two mold closing modules arranged on the bottom frame, the mold closing module comprises a movable cross beam, two lifting mechanisms, a guide mechanism and a brake mechanism, each lifting mechanism comprises a servo motor and a transmission assembly, the servo motors are connected with the speed reducer, and the transmission assemblies are connected with the output end of the speed reducer and drive the movable cross beam to move up and down through the servo motors; the guide mechanism is used for guiding the movement of the movable cross beam; the brake mechanism comprises a brake strip and a brake assembly, the brake strip is arranged in the moving direction of the movable cross beam, and the brake assembly is arranged on the guide mechanism and matched with the brake strip to limit the stopping position of the movable cross beam. The electric frame mold opening and closing structure driven by the servo motor is high in precision, higher in stability and high in limiting speed, and meanwhile, multiple safety devices are arranged, so that the requirements of safe production and efficient production can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of tire processing equipment, in particular to an opening and closing mold structure of an electric vulcanizer. Background Art

[0002] The drive of the frame opening and closing mold system of the vulcanizer is mainly mechanical and hydraulic.

[0003] The mechanical type uses a worm gear structure driven by a motor to rotate the crank gear, thereby driving the connecting rod to drive the beam to move up and down, flip or translate along the wall panel. The components of this mechanical mold opening and closing system are large and the processing accuracy is not high, resulting in low movement accuracy and low production efficiency.

[0004] The hydraulic type uses a hydraulic cylinder to drive the beam to rise and fall, which has high precision, but there is a risk of hydraulic leakage, and the movement smoothness and synchronization are slightly flawed. At the same time, the speed is limited (usually 220-250mm / s), and the maximum speed is not high.

[0005] In addition, the frame opening and closing mold system of the vulcanizer needs to stop during operation, and a limit mechanism needs to be set to limit the stop position. The limit mechanism in the existing technology is not stable, has certain risks, and is not flexible. When the stop position changes, the position of the limit mechanism needs to be manually adjusted. Utility Model Content

[0006] The utility model aims to provide a mold opening and closing structure of an electric vulcanizing machine to overcome the deficiencies in the prior art.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: an electric vulcanizer opening and closing mold structure, comprising a base frame and two clamping modules symmetrically arranged on the base frame; the clamping module comprises a movable beam, a lifting mechanism, a guide mechanism, and a brake mechanism. There are two lifting mechanisms, which are arranged on both sides of the movable beam. The lifting mechanism comprises a servo motor and a transmission assembly. The servo motor is connected to the reducer, and the transmission assembly is connected to the output end of the reducer, and drives the movable beam up and down by the servo motor; the guide mechanism is used to guide the movement of the movable beam; the brake mechanism comprises a brake strip and a brake assembly. The brake strip is arranged along the moving direction of the movable beam. The brake assembly is arranged on the guide mechanism and cooperates with the brake strip to limit the stop position of the movable beam.

[0008] Furthermore, in the above-mentioned electric vulcanizer mold opening and closing structure, the chassis includes two bases arranged corresponding to the mold closing module, the outer corners of the two bases are provided with outer legs, and the middle of the two bases is provided with a middle leg connecting the two bases.

[0009] Furthermore, in the above-mentioned electric vulcanizer mold opening and closing structure, the transmission assembly includes a screw and a screw nut, the reducer is fixed to the base frame through a mounting seat, the screw is connected to the output end of the reducer through a coupling, the screw nut is threadedly connected to the screw, and is connected to the movable beam through a nut mounting seat, and the nut mounting seat is also connected to the guide mechanism.

[0010] Furthermore, the above-mentioned electric vulcanizer mold opening and closing structure, the guide mechanism includes an upper frame and a crossbeam guide assembly, the upper frame includes side columns, a center column, guide columns, and a connecting beam, the side columns and the center column are arranged at two corners on the diagonal line of the base, and the bottoms of the side columns and the center column are fixedly connected to the base, and the tops are fixedly connected to the connecting beam, there are two guide columns, which are arranged on the inner side of the side columns or the inner side of the center column, and the upper ends of the guide columns are connected to the connecting beam, and the lower ends are fixedly connected to the base; there are two crossbeam guide assemblies, which are arranged corresponding to the guide columns, are sleeved on the guide columns and are slidably connected to the guide columns.

[0011] Furthermore, in the above-mentioned electric vulcanizer mold opening and closing structure, the beam guide assembly includes a guide seat and a shaft sleeve, one end of the guide seat is fixed with a shaft sleeve, and the other end is sleeved on the outside of the screw rod and connected to the nut mounting seat, and the shaft sleeve is sleeved on the outside of the guide column and is slidably connected to the guide column.

[0012] Furthermore, in the above-mentioned electric vulcanizing press mold opening and closing structure, the guide seat is also provided with an explosion-proof nut connected to the screw rod.

[0013] Furthermore, in the above-mentioned electric vulcanizer mold opening and closing structure, the top of the screw rod is rotatably connected to the connecting beam through a bearing group, and a retractable dust cover is provided on the outside of the screw rod.

[0014] Furthermore, the above-mentioned electric vulcanizer opening and closing mold structure, the top of the brake strip is connected to the connecting beam, and the lower end is connected to the base, the brake assembly includes a brake seat, a brake cylinder, and a brake block, the brake seat is fixed on the crossbeam guide assembly, and two parallel brake cylinders are provided on the outside thereof, and each output end of the brake cylinder is respectively provided with a brake block, and the two brake blocks are relatively arranged on both sides of the brake strip, and the two brake blocks are driven by the brake cylinder to clamp or release the brake strip; the brake seat is also provided with a slide, and a slide groove is also provided on one side of the slide, and the two side walls of the slide groove are inclined surfaces that cooperate with the side faces of the brake block; the slide is provided with a slide cover on the side where the slide groove is provided.

[0015] Furthermore, in the above-mentioned electric vulcanizer mold opening and closing structure, the beam guide assembly is also provided with an extreme safety latch assembly, and the guide column is provided with a limiting hole corresponding to the extreme safety latch assembly. When the movable beam rises to the extreme position, the safety pin of the extreme safety latch assembly is inserted into the limiting hole to position the movable beam externally.

[0016] Furthermore, in the above-mentioned electric vulcanizer mold opening and closing structure, the transmission assembly is a gear rack transmission structure, and the reducer is fixed on the moving beam through a mounting seat.

[0017] Compared with the existing technology, the beneficial effects of the present invention are: the present invention is an electric frame opening and closing mold structure driven by a servo motor, with high precision, greater stability, high maximum speed, and is equipped with multiple safety devices to meet the needs of safe and efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the opening and closing mold structure of the electric vulcanizing machine of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the opening and closing mold structure of the electric vulcanizing machine of the utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the mold opening and closing structure of the electric vulcanizing machine of the utility model;

[0022] Figure 4 A schematic diagram of the brake assembly of the mold opening and closing structure of the electric vulcanizing press of the present invention;

[0023] Figure 5 It is a partial schematic diagram of the brake structure of the mold opening and closing structure of the electric vulcanizing machine of the utility model;

[0024] In the figure: 1, chassis; 11, base; 12, outer legs; 13, middle legs;

[0025] 2. Move the beam;

[0026] 3. Lifting mechanism; 31. Servo motor; 32. Reducer, transmission assembly; 33. Screw; 34. Screw nut; 35. Nut mounting seat; 36. Bearing assembly; 37. Dust cover;

[0027] 4. Guide mechanism; 41. Side column; 42. Center column; 43. Guide column; 431. Limit hole; 44. Connecting beam; 45. Guide seat; 46. Bushing; 47. Explosion-proof nut;

[0028] 5. Brake mechanism; 51. Brake strip; 52. Brake seat; 53. Brake cylinder; 54. Brake block; 55. Slide; 551. Slide groove; 56. Slide cover;

[0029] 6. Extreme safety latch assembly. DETAILED DESCRIPTION

[0030] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1-5 As shown, an electric vulcanizer mold opening and closing structure includes a base frame 1 and two mold closing modules symmetrically arranged on the base frame 1. The two mold closing modules move independently and can realize the production of tires of different specifications and different cycles, thereby improving production efficiency; the mold closing module includes a moving beam 2, a lifting mechanism 3, a guide mechanism 4, and a brake mechanism 5. There are two lifting mechanisms 3, which are arranged on both sides of the moving beam 2. The lifting mechanism 3 includes a servo motor 31 and a transmission assembly. The servo motor 31 is connected to the reducer 32, and the transmission assembly is connected to the output end of the reducer 32, and drives the moving beam 2 up and down through the servo motor 31; the guide mechanism 4 is used to guide the movement of the moving beam 2; the brake mechanism 5 includes a brake strip 51 and a brake assembly. The brake strip 51 is arranged along the moving direction of the moving beam 2. The brake assembly is arranged on the guide mechanism 4 and cooperates with the brake strip 51 to limit the stop position of the moving beam 2.

[0033] In the above structure, if Figure 1 、 3As shown in Figure 5-5, the top of the brake strip 51 is connected to the connecting beam 44 of the guide mechanism 4, and the lower end is connected to the base 11 of the chassis 1. The brake assembly includes a brake seat 52, a brake cylinder 53, and a brake shoe 54. The brake seat 52 is fixed to the crossbeam guide assembly of the guide mechanism 4. Two brake cylinders 53 are arranged in parallel on the outside of the brake seat. The output end of each brake cylinder 53 is respectively provided with a brake shoe 54. The two brake shoes 54 are arranged on both sides of the brake strip 51 opposite to each other. The two brake shoes 54 are driven by the brake cylinders 53 to tighten or loosen the brake strip 51. When the brake cylinders 53 are activated, the two brake shoes 54 can be driven to move toward each other, thereby tightening or loosening the brake strip 51. The brake seat 52 is also provided with a slide 55, and a slide groove 551 is provided on one side of the slide 55. The two side walls of the slide groove 551 are inclined surfaces that cooperate with the side surfaces of the brake block 54; the slide 55 is also provided with a slide cover 56 on the side where the slide groove 511 is provided. The slide cover 56 closes the open end of the slide groove 551, so that the brake block 54 and the brake strip 51 are located in the circumferentially closed slide groove, which can enhance the structural strength of the entire brake device and ensure safe use.

[0034] The upper and lower parts of the mold used for vulcanizing tires are mounted below the moving beam 2 and above the base frame 1, respectively. Driven by a servo motor 31, the transmission assembly raises and lowers the moving beam 2, guided by a guide mechanism 4. A precision reducer 32, coupled with the servo motor 31, drives the transmission assembly, resulting in fast and smooth response and a high maximum speed of 350-380 mm / s. To stop during the lifting process, the servo motor 31 stops, and the brake cylinder 53 activates, driving the two brake blocks 54 toward each other and clamping the brake bar 51, bringing the moving beam 2 to a stop in the middle position. The brake assembly, mounted on the moving beam 2, adjusts as the beam's position changes, and the brake limit is automatically set by the brake cylinder, eliminating the need for manual adjustment and providing excellent flexibility. The servo motor 31 has its own built-in brake, which, together with the brake mechanism 5, forms a dual braking system, ensuring a safe and secure stop of the moving beam in the middle position, ensuring safety. In summary, the mold opening and closing structure of the present invention is an electric frame mold opening and closing structure driven by a servo motor, which has high precision, greater stability, high maximum speed, and is equipped with multiple safety devices to meet the needs of safe and efficient production.

[0035] Example 2

[0036] Based on the structure of Example 1, Figure 1-3 As shown, the chassis 1 includes two bases 11 corresponding to the clamping modules, with outer legs 12 provided at the outer corners of the two bases 11, and a middle leg 13 connecting the two bases 11. The bottoms of the outer legs 12 and the middle legs 13 are fixed to the ground and connected with the bases 11 to form the chassis of the entire vulcanizer, which is easy to assemble and has good structural strength.

[0037] In addition, if Figure 1-3 As shown, the guide mechanism 4 includes an upper frame and a crossbeam guide assembly. The upper frame includes side columns 41, a center column 42, a guide column 43, and a connecting beam 44. The side columns 41 and the center column 42 are arranged at two corners on the diagonal line of the base 11, and the bottoms of the side columns 41 and the center column 42 are fixedly connected to the base 11, and the tops are fixedly connected to the connecting beam 44. There are two guide columns 43, which are arranged on the inner side of the side column 41 or the inner side of the center column 42, respectively guiding the movement of a lifting mechanism 4, and the upper end of the guide column 43 is connected to the connecting beam 44, and the lower end is fixedly connected to the base 11; the upper frame constitutes the guide frame of the guide mechanism 4, the overall structure is stable, and the side columns 41 and the center column 42 can also be installed with a robot for automatic loading and unloading; in addition, the center column 42 on the two bases 11 can also be set as one body to reduce the assembly process. The upper frame and the bottom frame 1 form an overall frame structure of the vulcanizer, which has good vibration resistance and rigidity, and the brake strip 51 can provide a certain initial preload for the frame structure, making the entire frame structure more stable.

[0038] In the above structure, if Figure 1-3 As shown, the beam guide assembly is provided with two, corresponding to the guide posts 43, and is sleeved on the guide posts 43 and slidably connected to the guide posts 43. The beam guide assembly is also provided with an extreme safety latch assembly 6, and the guide posts 43 are provided with a limit hole 431 corresponding to the extreme safety latch assembly 6. When the movable beam 2 rises to the extreme position, the safety latch of the extreme safety latch assembly 6 is inserted into the limit hole 431 to position the movable beam 2 outward, ensuring that the movable beam 2 does not fall.

[0039] Example 3

[0040] Based on the structure of Example 2, Figure 1 、 3 As shown, the transmission assembly includes a screw 33 and a screw nut 34. The reducer 32 is fixed to the base frame 1 via a mounting base. The screw 33 is connected to the output end of the reducer 32 via a coupling. The screw nut 34 is threadedly connected to the screw 33 and connected to the moving beam 2 via a nut mounting base 35. The nut mounting base 35 is also connected to the beam guide assembly of the guide mechanism 4. Driven by the servo motor 31, the reducer 32 drives the ball screw to rotate, thereby driving the screw nut 34 and the moving beam 2 to rise and fall.

[0041] like Figure 1 、 3As shown, the beam guide assembly includes a guide seat 45 and a sleeve 46. The sleeve 46 is fixed to one end of the guide seat 45, and the other end is sleeved on the outside of the screw rod 33 and connected to the nut mounting seat 35. The sleeve 46 is sleeved on the outside of the guide post 43 and is slidably connected to the guide post 43. The beam guide assembly guides the movement of the movable beam 2, making the movement more stable and smooth.

[0042] like Figure 1 、 3 As shown, the guide seat 45 is further provided with an explosion-proof nut 47 connected to the screw rod 33. The interior of the explosion-proof nut 47 is a spiral shape customized according to the screw rod. When the screw rod 33 is operating normally, the explosion-proof nut 47 does not contact the screw rod 33. When the steel ball in the screw nut 34 breaks, it will contact the screw rod 33, playing a supporting role and preventing the moving beam 2 from falling due to failure of the screw rod device.

[0043] like Figure 1-3 As shown, the top of the screw rod 33 is rotatably connected to the connecting beam 44 through a bearing group 36. The bearing group 36 is arranged on the bearing seat of the connecting beam 44, so that the rotation of the screw rod 33 is more stable; a retractable dust cover 37 is provided on the outside of the screw rod 33 to protect the screw rod 33 from pollution such as dust and improve its service life.

[0044] Example 4

[0045] Based on the structure of Example 1 or Example 2, the transmission assembly is a rack and pinion transmission structure, and the reducer 32 is fixed to the movable crossbeam 2 via a mounting base. The rack of the rack and pinion transmission structure is mounted on the side columns 41 and the center column 42, and the servo motor 31, reducer 32, and drive gear are mounted on the movable crossbeam 2. This can achieve the up and down movement of the movable crossbeam 2, and also has the functions of high precision, strong stability, and high maximum speed.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electric vulcanizing machine mold opening and closing structure, characterized by: It includes a base frame and two clamping modules symmetrically arranged on the base frame; the clamping module includes a movable beam, a lifting mechanism, a guide mechanism, and a brake mechanism. There are two lifting mechanisms, which are arranged on both sides of the movable beam. The lifting mechanism includes a servo motor and a transmission assembly. The servo motor is connected to the reducer, and the transmission assembly is connected to the output end of the reducer, and drives the movable beam up and down through the servo motor; the guide mechanism is used to guide the movement of the movable beam; the brake mechanism includes a brake strip and a brake assembly. The brake strip is arranged along the moving direction of the movable beam. The brake assembly is arranged on the guide mechanism and cooperates with the brake strip to limit the stop position of the movable beam.

2. The electric vulcanizing press mold opening and closing structure according to claim 1, characterized in that: The chassis comprises two bases corresponding to the mold clamping modules, outer corners of the two bases are provided with outer legs, and a middle leg connecting the two bases is provided in the middle of the two bases.

3. The electric vulcanizing press mold opening and closing structure according to claim 1, characterized in that: The transmission assembly includes a screw and a screw nut. The reducer is fixed to the base frame through a mounting seat. The screw is connected to the output end of the reducer through a coupling. The screw nut is threadedly connected to the screw and connected to the moving beam through a nut mounting seat. The nut mounting seat is also connected to the guide mechanism.

4. The electric vulcanizing press mold opening and closing structure according to claim 1 or 3, characterized in that: The guide mechanism includes an upper frame and a crossbeam guide assembly. The upper frame includes side columns, a center column, a guide column, and a connecting beam. The side columns and the center column are arranged at two corners on the diagonal line of the base, and the bottoms of the side columns and the center column are fixedly connected to the base, and the tops are fixedly connected to the connecting beam. There are two guide columns, which are arranged on the inner side of the side columns or the inner side of the center column, and the upper ends of the guide columns are connected to the connecting beam, and the lower ends are fixedly connected to the base; there are two crossbeam guide assemblies, which are arranged corresponding to the guide columns, are sleeved on the guide columns and are slidably connected to the guide columns.

5. The electric vulcanizing press mold opening and closing structure according to claim 4, characterized in that: The beam guide assembly includes a guide seat and a shaft sleeve. One end of the guide seat is fixed with a shaft sleeve, and the other end is sleeved on the outside of the screw rod and connected to the nut mounting seat. The shaft sleeve is sleeved on the outside of the guide column and is slidably connected to the guide column.

6. The electric vulcanizing press mold opening and closing structure according to claim 5, characterized in that: The guide seat is also provided with an explosion-proof nut connected with the screw rod.

7. The electric vulcanizing press mold opening and closing structure according to claim 3, characterized in that: The top of the screw rod is rotatably connected to the connecting beam through a bearing group, and a retractable dust cover is provided on the outside of the screw rod.

8. The electric vulcanizing press mold opening and closing structure according to claim 1, characterized in that: The top of the brake strip is connected to the connecting beam, and the lower end is connected to the base. The brake assembly includes a brake seat, a brake cylinder, and a brake block. The brake seat is fixed on the crossbeam guide assembly, and two brake cylinders arranged in parallel are provided on the outside thereof. Each output end of the brake cylinder is respectively provided with a brake block, and the two brake blocks are arranged opposite to each other on both sides of the brake strip. The two brake blocks are driven by the brake cylinder to clamp or release the brake strip; a slide is also provided on the brake seat, and a slide groove is also provided on one side of the slide. The two side walls of the slide groove are inclined surfaces that match the side faces of the brake block; a slide cover is also provided on the side of the slide with the slide groove.

9. The electric vulcanizing press mold opening and closing structure according to claim 4, characterized in that: The beam guide assembly is also provided with an extreme safety latch assembly, and the guide column is provided with a limiting hole corresponding to the extreme safety latch assembly. When the moving beam rises to the extreme position, the safety latch of the extreme safety latch assembly is inserted into the limiting hole to position the moving beam externally.

10. The electric vulcanizing press mold opening and closing structure according to claim 1, characterized in that: The transmission assembly is a gear rack transmission structure, and the reducer is fixed on the moving beam through a mounting seat.

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