Pressurizing structure of rubber track forming machine and rubber track forming machine

Abstract

The utility model discloses a pressurizing structure of a rubber track forming machine. The pressurizing structure comprises a pull rod assembly, a plunger pressurizing part, a pull rod locking assembly, a lower template and a mold, the plunger pressurizing component is provided with an upper template, a plunger and a base plate, the base plate is located on the lower portion of the upper template, the lower end of the plunger is fixedly connected with the base plate, an oil cavity is formed in the middle of the upper template, and the plunger extends into the oil cavity; the pull rod assembly is located on the upper portion of the plunger pressurizing component and penetrates through the upper die plate, the pull rod locking assembly is arranged at the bottom of the lower die plate, and the die is located between the base plate and the lower die plate. After the die is closed, the pull rod assembly moves downwards and penetrates through the lower die plate, the pull rod locking assembly locks the lower end of the pull rod assembly, and the pull rod assembly limits the plunger pressurizing component and the lower die plate. The oil cavity of the upper die plate is pressurized, and the plunger moves downwards to pressurize the middle position of the die. According to the pressurizing structure of the rubber track forming machine, pressure is directly applied to the middle of the mold through the plunger after mold closing, a top middle pressurizing structure is formed, mold plate deformation is eliminated, and an exhaust path is optimized.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber track molding equipment, specifically a pressure boosting structure for a rubber track molding machine and a rubber track molding machine. Background Technology

[0002] The existing rubber track molding machine's mold closing and pressurizing structure mainly uses the middle heating plate as a fixed plate and as a reference. The upper and lower heating plates form the upper and lower heating plate mold mounting distances with the middle heating plate. During production, after the molds are installed at the upper and lower heating plate distances, the upper and lower quick mold closing mechanism can achieve preliminary mold closing. The piston rods of the four combination mold cylinders at the top extend simultaneously and lock the template, heating plate and mold through the locking block assembly. After the mold closing cylinders apply pressure, the track in the upper and lower molds is pressurized for normal production.

[0003] The disadvantage of this structure is that after the piston rod of the four-piece mold cylinder is tightened and the mold is closed, the reaction force of the central track will cause a certain bending moment deformation in the upper and lower mold plates. After the mold plates are stressed, they are prone to forming a circumferential effect on the track inside the mold, which is not conducive to the central exhaust of the track. For example, the original pressure boosting diagram of the rubber track molding machine. Figure 1 As shown. This pressurization structure is prone to causing product quality defects and shortening mold life.

[0004] Therefore, the aforementioned technical problems need to be solved. Summary of the Invention

[0005] This utility model addresses the above-mentioned technical problems by providing a pressure boosting structure for a rubber track molding machine and a rubber track molding machine. By using a plunger to directly apply pressure to the middle of the mold after mold closing, a top-middle pressure boosting structure is formed, eliminating mold deformation and optimizing the venting path.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A pressurization structure for a rubber track molding machine includes a tie rod assembly, a plunger pressurization component, a tie rod locking assembly, a lower template, and a mold;

[0008] The plunger pressurization component includes an upper template, a plunger, and a pad. The pad is located at the lower part of the upper template, and the lower end of the plunger is fixedly connected to the pad. An oil cavity is provided in the middle of the upper template, and the plunger extends into the oil cavity.

[0009] The pull rod assembly is located above the plunger pressurizing component and passes through the upper template; the pull rod locking assembly is located at the bottom of the lower template; and the mold is located between the pad and the lower template.

[0010] After the mold is closed, the pull rod assembly moves down and passes through the lower template. The pull rod locking assembly locks the lower end of the pull rod assembly. The pull rod assembly limits the plunger pressurizing component and the lower template respectively. The oil cavity of the upper template is pressurized, and the plunger moves down to achieve pressurization at the middle position of the mold.

[0011] The pressurization structure of this rubber track molding machine is tightened on the outside through a tie rod assembly after the initial mold closing. The upper mold plate, plunger, and pad form a pressurization cylinder structure. The oil chamber of the upper mold plate is located in the middle, and the corresponding plunger is located in the middle of the pad. This forms a top-middle pressurization structure. The mold applies pressure to the molded product, i.e., the track, from the middle. This facilitates the discharge of gas from the middle to the outside of the track when it is pressurized, and can even squeeze out excess rubber material from the middle to the outside. This prevents deformation under stress and the squeezing of excess rubber material on the mold, extends the service life of the mold, and improves the production quality of the track.

[0012] In a further optimized design, the plunger pressurizing component is also equipped with several guide rods and fixing nuts. One end of each guide rod is connected to the pad, and the other end passes through the upper template and is limited to the upper template by the fixing nuts. The pad moves up and down via the guide rods. The guide rods ensure smooth and stable up-and-down movement of the pad without jamming.

[0013] In a further optimized design, two sets of plungers are provided, with two corresponding oil chambers located in the middle of the upper template. The two sets of plungers ensure more uniform pressurization and, while maintaining the same pressure, allow for a more compact structure, avoiding the problem of large individual plunger volumes.

[0014] A further optimized solution includes a lever lifting cylinder assembly, whose piston rod is connected to the lever assembly, and whose cylinder body is connected to the plunger pressurization component. The lever lifting cylinder assembly drives the lever assembly to move up and down.

[0015] The further optimized solution also includes a frame component, which is provided with an upper synchronization component and a lower synchronization component. The upper synchronization component is connected to the plunger pressurization component, and the lower synchronization component is connected to the lower template.

[0016] The plunger pressurizing component moves up and down synchronously on the upper synchronizing assembly, and the lower template moves up and down synchronously on the lower synchronizing assembly.

[0017] The upper and lower synchronization components ensure that the plunger pressurization component and the lower template do not tilt left or right or forward or backward during the up and down movement. The two components move smoothly and without jamming during the up and down movement.

[0018] Further optimization of the scheme also includes the upper rapid mold closing cylinder assembly and the lower rapid mold closing cylinder assembly;

[0019] The cylinder body of the upper rapid mold closing cylinder assembly is connected to the upper synchronization assembly, and its piston rod is connected to the plunger booster component;

[0020] The cylinder body of the lower rapid mold closing cylinder assembly is connected to the lower synchronization assembly, and its piston rod is connected to the lower template.

[0021] The upper and lower rapid mold closing cylinder assemblies achieve the initial mold closing between the molds.

[0022] Further optimization of the design includes a plunger retraction cylinder assembly, whose cylinder body is connected to the upper template and whose piston rod is connected to the pad plate. After the mold is pressurized, the plunger retraction cylinder assembly drives the pad plate upwards, opening a gap in the mold to allow for venting. Venting occurs once after each pressurization. After multiple venting cycles, the track is pressurized and heated in the mold for vulcanization, ultimately achieving the required molding and ensuring product quality.

[0023] Further optimization of the solution also includes a mechanical lock assembly, which is located above the upper synchronization assembly to restrict the vertical position of the plunger booster component, prevent it from moving up and down, and ensure safety.

[0024] Further optimization of the scheme also includes a hot plate assembly, which is provided with an upper hot plate, a middle hot plate and a lower hot plate; the upper hot plate is connected to the pad, the middle hot plate is fixedly connected to the middle position of the frame component, and the lower hot plate is connected to the lower template.

[0025] The scheme is further optimized so that the mold includes an upper mold and a lower mold. The upper mold is provided with an upper mold plate and an upper mold lower plate, and the lower mold is provided with a lower mold upper plate and a lower mold lower plate.

[0026] The upper mold plate is connected to the upper heating plate, and the lower mold plate is connected to the upper surface of the middle heating plate; the upper lower mold plate is connected to the lower surface of the middle heating plate, and the lower lower mold plate is connected to the lower heating plate.

[0027] The design is further optimized by incorporating a seal and an oil drain groove at the connection between the plunger and the gasket. This prevents accidental leakage of pressurized oil and allows for timely drainage in the event of a leak, ensuring normal track production and facilitating maintenance and replacement.

[0028] A rubber track molding machine includes the pressurization structure of the rubber track molding machine described in any one of the above 1.

[0029] This utility model has the following technical advantages compared with the prior art:

[0030] 1. The pressurization structure of this rubber track molding machine reduces mold deformation through central pressurization and optimizes the exhaust path, ensuring smoother and unobstructed exhaust from the center to the periphery;

[0031] 2. The structure is simplified, reducing the difficulty of processing and maintenance;

[0032] 3. Extend the service life of the mold and improve the consistency of track product quality. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the pressurization process in a traditional rubber track molding machine;

[0034] Figure 2 This is a schematic diagram of the improved pressure boosting mechanism of the rubber track molding machine of this utility model;

[0035] Figure 3 This is a perspective view of a specific embodiment of the pressurization structure of the rubber track molding machine of this utility model;

[0036] Figure 4 yes Figure 3 The main view;

[0037] Figure 5 yes Figure 4 The left view;

[0038] Figure 6 yes Figure 4 Top view;

[0039] Figure 7 yes Figure 4 Sectional view of AA;

[0040] Figure 8 yes Figure 3 Cross-sectional view of the booster section;

[0041] Figure 9 yes Figure 3 A 3D view of the supercharger section;

[0042] Figure 10 yes Figure 8 Enlarged view of B;

[0043] Figure 11 yes Figure 3 A 3D view of a rubber track during mold assembly;

[0044] Figure 12 yes Figure 11 Partial 3D view of C;

[0045] Figure 13 yes Figure 11 Enlarged view of D;

[0046] Figure 14 yes Figure 11 The main view;

[0047] Figure 15 yes Figure 14The left view;

[0048] Figure 16 yes Figure 3 A 3D view of the mid-frame components.

[0049] In the diagram: 1. Tie rod lifting cylinder assembly; 2. Tie rod assembly; 3. Upper synchronization assembly; 4. Upper quick mold closing cylinder assembly; 5. Plunger retraction cylinder assembly; 6. Plunger pressurizing component; 6. Top plate flange; 61. Upper template; 62. Plunger flange; 63. Plunger; 64. Pad; 65. Fixing nut; 66. Guide rod; 67. Seal; 68. Oil drain groove; 69. Frame component; 7. Left C-shaped plate; 71. Right C-shaped plate; 72. Middle plate; 73. Connecting plate; 74. Bottom plate; 75. Hot plate assembly; 8. Upper hot plate; 81. Middle hot plate; 82. Lower hot plate; 83. Lower template; 9. Mechanical lock assembly; 10. Tie rod locking assembly; 11. Lower synchronization assembly; 12. Lower quick mold closing cylinder assembly; 13. Track; 14. Mold; 15. Upper mold; 16. Upper mold upper plate; 16a. Upper mold lower plate; 16b. Lower mold; 17. Lower mold upper plate; 17a. Lower mold lower plate; 17b. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0051] like Figures 1 to 16 As shown, this invention relates to a specific embodiment of the pressurization structure of a rubber track molding machine.

[0052] like Figure 3 and Figure 11 As shown, the pressurization structure of the rubber track molding machine in this embodiment includes a tie rod assembly 2, a plunger pressurization component 6, a tie rod locking assembly 11, a lower template 9, and a mold 15;

[0053] like Figure 8 and Figure 9 As shown, the plunger booster component 6 is provided with an upper template 62, a plunger 64 and a pad 65. The pad 65 is located at the lower part of the upper template 62. The lower end of the plunger 64 is fixedly connected to the pad 65. An oil cavity is provided in the middle of the upper template 62, and the plunger 64 extends into the oil cavity.

[0054] like Figure 3 and Figure 11 As shown, the pull rod assembly 2 is located above the plunger pressurizing component 6 and passes through the upper template 62, the pull rod locking assembly 11 is located at the bottom of the lower template 9, and the mold 15 is located between the pad 65 and the lower template 9;

[0055] like Figure 11As shown, after the mold 15 is closed, the pull rod assembly 2 moves down and passes through the lower template 9. The pull rod locking assembly 11 locks the lower end of the pull rod assembly 2. The pull rod assembly 2 limits the plunger pressurizing component 6 and the lower template 9 respectively. The oil cavity of the upper template 62 is pressurized, and the plunger 64 moves down to achieve pressurization at the middle position of the mold 15.

[0056] like Figure 3 , Figure 11 and Figure 12 As shown, the pull rod assembly 2 consists of four vertically arranged pull rods, with their upper ends connected as one piece by a frame, and their lower ends movable up and down. The lower end of each pull rod has a locking head with an annular groove, and the pull rod locking assembly 11 extends into the annular groove of each pull rod to lock the locking head of the pull rod assembly 2.

[0057] The pressurization structure of this rubber track molding machine is tightened on the outside by the tie rod assembly 2 after the initial mold closing. The upper template 62, plunger 64 and pad 65 are the structure of the pressurization cylinder. The oil chamber of the upper template 62 is in the middle position, and the corresponding plunger 64 is located in the middle position of the pad 65. This forms a top-middle pressurization structure. The mold 15 applies pressure to the molded product, i.e., the track 14, from the middle. This is beneficial for the track 14 to discharge gas from the middle to the outside when it is pressurized. It can even squeeze out excess rubber material from the middle to the outside, preventing deformation under stress and the squeezing of excess rubber material on the mold 15. This extends the service life of the mold 15 and improves the production quality of the track 14.

[0058] like Figure 8 and Figure 9 As shown, the plunger booster component 6 is also equipped with four guide rods 67 and four fixing nuts 66; as Figure 7 As shown, one end of the guide rod 67 is connected to the pad 65, and the other end passes through the upper template 62 and is limited on the upper template 62 by the fixing nut 66. The pad 65 moves up and down through the guide rod 67. The guide rod 67 ensures that the pad 65 moves up and down smoothly and stably without jamming.

[0059] like Figure 8 and Figure 9 As shown, there are two sets of plungers 64, and two oil chambers that cooperate with them are provided in the middle position of the upper template 62. The two sets of plungers 64 can ensure a more uniform pressurization force, and can make the structure more compact while ensuring the same pressure is applied, avoiding the large volume of a single plunger 64.

[0060] like Figure 8 As shown, the plunger booster component 6 is also provided with a top plate flange 61 and a plunger flange 63. The top plate flange 61 is fixed on the upper template 62; the plunger flange 63 is located in the oil cavity of the upper template 62. The plunger flange 63 can be processed as a separate connection to reduce the processing difficulty of the upper template 62.

[0061] like Figure 3As shown, the pressurization structure of the rubber track molding machine also includes a lever lifting cylinder assembly 1, whose piston rod is connected to a lever assembly 2, and whose cylinder body is connected to a plunger pressurization component 6. The lever lifting cylinder assembly 1 has two lever lifting cylinders symmetrically arranged, and the lever lifting cylinder assembly 1 drives the lever assembly 2 to move up and down.

[0062] like Figure 3 As shown, the pressurization structure of the rubber track molding machine also includes a frame component 7. The frame component 7 is provided with an upper synchronization component 3 and a lower synchronization component 12. The upper synchronization component 3 is connected to the plunger pressurization component 6, and the lower synchronization component 12 is connected to the lower template 9.

[0063] The plunger booster component 6 moves up and down synchronously on the upper synchronization component 3, and the lower template 9 moves up and down synchronously on the lower synchronization component 12.

[0064] like Figure 3 , Figure 11 and Figure 15 As shown, the upper synchronization component 3 and the lower synchronization component 12 are rack and pinion structures, wherein the rack part is fixedly connected to the frame component 7, and the gear part is fixedly connected to the plunger pressurizing component 6 and the lower template 9.

[0065] The upper synchronization component 3 and the lower synchronization component 12 ensure that the plunger pressurizing component 6 and the lower template 9 do not tilt left or right or forward or backward during the up and down movement. The two move smoothly and without jamming during the up and down movement.

[0066] like Figure 3 and Figure 4 As shown, the pressurization structure of the rubber track molding machine also includes an upper rapid mold closing cylinder assembly 4 and a lower rapid mold closing cylinder assembly 13.

[0067] The cylinder body of the upper quick mold closing cylinder assembly 4 is connected to the upper synchronization assembly 3, and its piston rod is connected to the plunger booster component 6;

[0068] The cylinder body of the lower quick-closing cylinder assembly 13 is connected to the lower synchronization assembly 12, and its piston rod is connected to the lower template 9.

[0069] The upper rapid mold closing cylinder assembly 4 includes two symmetrically arranged upper rapid mold closing cylinders, and the lower rapid mold closing cylinder assembly 13 includes two symmetrically arranged lower rapid mold closing cylinders.

[0070] The upper rapid mold closing cylinder assembly 4 and the lower rapid mold closing cylinder assembly 13 achieve the initial mold closing between the molds 15.

[0071] like Figure 3 and Figure 4 As shown, the pressurization structure of the rubber track molding machine also includes a plunger retraction cylinder assembly 5, whose cylinder body is connected to the upper template 62, and whose piston rod is connected to the pad 65. The plunger retraction cylinder assembly 5 has two symmetrically arranged plunger retraction cylinders.

[0072] After the plunger retraction cylinder assembly 5 applies pressure to the mold 15, it drives the pad 65 to move upward, which can open a gap in the mold 15 to achieve venting. Venting occurs once after each pressurization. After multiple venting operations, the track 14 is pressurized and heated in the mold 15 for vulcanization, and finally the molding meets the requirements, ensuring product quality.

[0073] like Figure 3 and Figure 6 As shown, the pressurization structure of the rubber track molding machine also includes a mechanical lock assembly 10, which is located above the upper synchronization assembly 3 to restrict the vertical position of the plunger pressurization component 6, preventing it from moving up and down and ensuring safety. The mechanical lock assembly 10 is a cylinder that drives a locking block to move back and forth. When the locking block extends into the locking groove on the plunger pressurization component 6, the plunger pressurization component 6 is limited.

[0074] like Figure 4 , Figure 5 and Figure 14 As shown, the pressurization structure of the rubber track molding machine also includes a hot plate assembly 8, which is provided with an upper hot plate 81, a middle hot plate 82 and a lower hot plate 83; the upper hot plate 81 is connected to the pad 65, the middle hot plate 82 is fixedly connected to the middle position of the frame component 7, and the lower hot plate 83 is connected to the lower template 9.

[0075] like Figure 11 and Figure 14 As shown, mold 15 includes upper mold 16 and lower mold 17. Upper mold 16 is provided with upper mold plate 16a and lower mold plate 16b, and lower mold 17 is provided with lower mold plate 17a and lower mold plate 17b.

[0076] The upper mold plate 16a is connected to the upper heating plate 81, and the lower mold plate 16b is connected to the upper surface of the middle heating plate 82; the upper mold plate 17a is connected to the lower surface of the middle heating plate 82, and the lower mold plate 17b is connected to the lower heating plate 83.

[0077] like Figure 8 and Figure 10 As shown, a seal 68 and an oil drain groove 69 are provided at the connection between the plunger 64 and the gasket 65. The seal 68 is an O-ring to prevent accidental leakage of pressurized oil. In the event of accidental leakage of pressurized oil, it can be drained in time through the oil drain groove 69 without affecting the normal production of the track 14 and facilitating maintenance and replacement.

[0078] like Figure 16 As shown, the frame component 7 includes a left C-shaped plate 71, a right C-shaped plate 72, a middle plate 73, a connecting plate 74, and a base plate 75. The central heating plate 82 is directly fixed to the middle plate 73.

[0079] like Figure 4 and Figure 5As shown, the plunger booster component 6 is driven by the upper rapid mold closing cylinder assembly 4, raising it to the maximum hot plate opening distance, thus forming an upper hot plate 81 opening distance between the upper hot plate 81 and the upper surface of the middle hot plate 82; the lower mold plate 9 is driven by the lower rapid mold closing cylinder assembly 13 (including gravity) to fall back to the lowest point, forming a lower hot plate 83 opening distance between the lower surface of the middle hot plate 82 and the lower hot plate 83. Figure 11 As shown, the upper hot plate 81 and the lower hot plate 83 are respectively installed with the upper mold 16 and the lower mold 17.

[0080] like Figure 11 and Figure 14 As shown, after the mold 15 is covered with the required adhesive and tensioned steel wire, the upper quick-closing cylinder assembly 4 drives the upper synchronization assembly 3 and the plunger pressurization component 6 to realize the initial mold closing process of the upper mold 16; at the same time, the lower quick-closing cylinder assembly 13 drives the lower heating plate 83 on the upper surface of the lower mold plate 9 and the lower mold plate 17b to lift, so as to realize the synchronous initial mold closing of the upper mold 16 and the lower mold 17.

[0081] After the upper mold 16 and lower mold 17 are initially closed synchronously, the pull rod lifting cylinder assembly 1 drives the pull rod assembly 2 to move the four pull rods downwards rapidly and synchronously. When the locking head at the front end of the pull rod is sensed, the drive stops; the pull rod locking assembly 11 actuates, locking the locking head of the pull rod assembly 2, thus realizing a closed locking device, such as... Figure 2 As shown.

[0082] After the closed locking structure is formed, the two sets of oil chambers in the upper mold plate 62 are pressurized, activating the two sets of plungers 64. The pull rod assembly 2 continues to move downward until the mechanical limit part at the upper end of the pull rod is flat against the plunger pressurization component 6. The two sets of plungers 64 gradually increase the pressure. When the pressure reaches the set value, the upper mold plate 62 and the plungers 64 are depressurized. The plunger retraction cylinder assembly 5 drives the pad 65 to open a gap between the upper mold upper plate 16a and the upper mold lower plate 16b. At this time, the pull rod locking assembly 11 always keeps the locking pin head locked. After that, the upper quick mold closing cylinder assembly 4 and the plunger... The retraction cylinder assembly 5 remains in a floating state. The lower quick mold closing cylinder assembly 13 pulls the locking head of the pull rod assembly 2 downward through the lower platen 9 and the pull rod locking assembly 11. At the same time, the pull rod drives the plunger pressurizing component 6 and the upper mold plate 16a of the upper mold 16 to move downward until the displacement reaches half of the opening gap between the upper mold plate 16 and the lower mold plate 17. At this time, the lower mold plate 17a and the lower mold plate 17b of the lower mold 17 open half of the above-mentioned gap, which can also release air, realizing the first air release process of the upper mold 16 and the lower mold 17.

[0083] The plunger 64 repeatedly pressurizes, causing the upper mold plate 16a to move downwards and fit against the lower mold plate 16b. At this time, the rodless cavity of the quick-closing cylinder assembly 13 needs to maintain pressure to prevent the plunger 64 from moving downwards as a whole. After the upper mold 16 is fitted, the plunger 64 continues to drive, causing the lower mold plate 17b of the lower mold 17 to move upwards until it fits against the upper mold plate 17a via the tie rod assembly 2. At this time, the plunger 64 continues to pressurize, with a pressure greater than the pressure of the first pressurization. The track 14 is pressurized and heated in the mold 15, allowing the track 14 inside the mold 15 to fit better and form.

[0084] After the track 14 is tightened again, the mold closing section needs to perform multiple venting actions to better expel the gas from the track 14. The plunger 64 releases pressure, and the plunger retraction cylinder assembly 5 drives the upper mold plate 62 to open the upper mold 16 with a gap, thus returning to the previous action. After multiple venting actions, the track 14 is pressurized and heated in the mold 15 for vulcanization, and finally the track 14 meets the requirements.

[0085] The pressurization process occurs after the mold is closed and locked, with two sets of plungers 64 increasing the pressure. The action and reaction forces of the mold closing section are used to produce the track 14. The mold closing force, as an internal force of the mold closing section, does not affect the support of the frame component 7, the upper synchronous assembly 3, the lower synchronous assembly 12, the upper rapid mold closing cylinder assembly 4, and the lower rapid mold closing cylinder assembly 13. Furthermore, the pressurization process minimizes the deformation between the molds 15. (See diagram for mold closing principle.) Figure 2 As shown. After the top plunger 64 pressurizes, the two sets of plungers 64 apply force to the center line of the mold 15 through the pad 65 and the upper heating plate 81. This makes it easier for the gas in the track 14 to be discharged from the middle to the outside when it is pressurized. It can even squeeze out excess rubber material from the middle to the outside, preventing deformation under stress and the squeezing of excess rubber material on the mold 15. This extends the service life of the mold 15 and improves the production quality of the track 14.

[0086] This utility model also discloses a rubber track molding machine, including the above-mentioned rubber track molding machine pressurization structure.

[0087] This rubber track molding machine features a pressurization structure and applies pressure directly to the mold centerline after mold closing using two sets of plungers, eliminating mold deformation and optimizing the venting path. It boasts excellent performance, a compact structure, low processing difficulty, stable rubber production, and reliable maintenance. It can operate safely and continuously, and is highly adaptable and versatile. It effectively solves problems such as venting and track quality issues caused by bending moment deformation of the upper and lower molds during production.

[0088] In summary, as described in the specification and figures, this utility model has been manufactured into actual samples and subjected to multiple use tests. The test results demonstrate that this utility model achieves its intended purpose, and its practicality is beyond doubt. The embodiments described above are merely for illustrative purposes and are not intended to limit the scope of this utility model. Any equivalent embodiments made by those with common knowledge in the relevant technical field, utilizing the technical content disclosed in this utility model, without departing from the scope of the technical features and similar features disclosed in this utility model, are all within the protection scope of this utility model.

Claims

1. A pressurized structure of a rubber track building machine, characterized by: It comprises a pull rod assembly (2), a plunger pressurizing component (6), a pull rod locking assembly (11), a lower die plate (9) and a mold (15); The plunger pressurizing component (6) is provided with an upper die plate (62), a plunger (64) and a backing plate (65), the backing plate (65) is located at the lower part of the upper die plate (62), the lower end of the plunger (64) is fixedly connected with the backing plate (65), and the middle position of the upper die plate (62) is provided with an oil cavity, and the plunger (64) extends into the oil cavity; The pull rod assembly (2) is located at the upper part of the plunger pressurizing component (6) and penetrates through the upper die plate (62), the pull rod locking assembly (11) is arranged at the bottom of the lower die plate (9), and the mold (15) is located between the backing plate (65) and the lower die plate (9); After the mold (15) is closed, the pull rod assembly (2) moves downward and penetrates through the lower die plate (9), the pull rod locking assembly (11) locks the lower end of the pull rod assembly (2), and the pull rod assembly (2) limits the positions of the plunger pressurizing component (6) and the lower die plate (9) respectively; the oil cavity in the upper die plate (62) is pressurized, and the plunger (64) moves downward to realize pressurization at the middle position of the mold (15).

2. The rubber track building press supercharging structure according to claim 1, characterized by, The plunger pressurizing component (6) is further provided with a plurality of guide rods (67) and fixed nuts (66), one end of the guide rod (67) is connected with the backing plate (65), the other end penetrates through the upper die plate (62) and is limited on the upper die plate (62) through the fixed nut (66), and the backing plate (65) moves up and down through the guide rod (67).

3. The rubber track building press supercharging structure according to claim 1, characterized by, The plunger (64) is provided with two groups, and the middle position of the upper die plate (62) is provided with two oil cavities matched with the two groups.

4. The rubber track building press supercharging structure according to claim 1, characterized by, It further comprises a pull rod lifting oil cylinder assembly (1), the piston rod of which is connected with the pull rod assembly (2), and the cylinder body is connected with the plunger pressurizing component (6).

5. The rubber track building press supercharging structure according to claim 1, characterized by, It further comprises a rack component (7), which is provided with an upper synchronization assembly (3) and a lower synchronization assembly (12), the upper synchronization assembly (3) is connected with the plunger pressurizing component (6), and the lower synchronization assembly (12) is connected with the lower die plate (9); The plunger pressurizing component (6) moves up and down on the upper synchronization assembly (3), and the lower die plate (9) moves up and down on the lower synchronization assembly (12).

6. The rubber track building press supercharging structure according to claim 5, characterized by It further comprises an upper quick mold closing oil cylinder assembly (4) and a lower quick mold closing oil cylinder assembly (13). The cylinder body of the upper quick mold closing oil cylinder assembly (4) is connected with the upper synchronization assembly (3), and the piston rod thereof is connected with the plunger pressurizing component (6). The cylinder body of the lower quick mold closing oil cylinder assembly (13) is connected with the lower synchronization assembly (12), and the piston rod thereof is connected with the lower die plate (9).

7. The rubber track building press supercharging structure according to claim 1, characterized by, It further comprises a plunger retracting oil cylinder assembly (5), the cylinder body of which is connected with the upper die plate (62), and the piston rod thereof is connected with the backing plate (65).

8. The rubber track building press supercharging structure according to claim 5, characterized by, It further comprises a mechanical lock assembly (10), which is arranged above the upper synchronization assembly (3) and limits the up-down position of the plunger pressurizing component (6).

9. The rubber track building press supercharging structure according to claim 5, characterized by, Further comprising a hot plate assembly (8) provided with an upper hot plate (81), a middle hot plate (82) and a lower hot plate (83); the upper hot plate (81) is connected to the backing plate (65), the middle hot plate (82) is fixedly connected to the middle position of the frame part (7), and the lower hot plate (83) is connected to the lower die plate (9).

10. The rubber track building press supercharging structure according to claim 9, characterized by, The mold (15) comprises an upper mold (16) and a lower mold (17), the upper mold (16) is provided with an upper mold upper plate (16a) and an upper mold lower plate (16b), and the lower mold (17) is provided with a lower mold upper plate (17a) and a lower mold lower plate (17b). The upper mold upper plate (16a) is connected to the upper hot plate (81), and the upper mold lower plate (16b) is connected to the upper surface of the middle hot plate (82); the lower mold upper plate (17a) is connected to the lower surface of the middle hot plate (82), and the lower mold lower plate (17b) is connected to the lower hot plate (83).

11. The rubber track building press supercharging structure according to claim 1, characterized by, The connecting part of the plunger (64) and the backing plate (65) is provided with a sealing element (68) and an oil drain groove (69).

12. A rubber track building machine characterized by: The rubber track forming machine supercharging structure comprises the rubber track forming machine supercharging structure according to any one of claims 1 to 11.

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