A rubber seal molding die and a method of using the same

Abstract

The application discloses a rubber sealing piece forming die and a use method thereof, and belongs to the technical field of rubber forming dies. Mainly including a base, the base is provided with a hot pressing assembly, the hot pressing assembly has a track and a lower die, the hot pressing assembly is provided with an upper and lower feeding assembly, the upper and lower feeding assembly comprises a platform, the platform is installed at the bottom of the track, a vertical plate is installed on the platform, a feeding part is arranged on the vertical plate, the feeding part is suitable for conveying rubber strips above the lower die, a cutting part is arranged on the feeding part, the cutting part is suitable for cutting the rubber strips, a grabbing part is arranged on the vertical plate, and the grabbing part is suitable for grabbing the formed rubber materials. The rubber sealing piece forming die and the use method thereof can automatically take and place the rubber strips and convey the rubber strips to the lower die, so that the manual operation steps are reduced, and the effect of automatically taking and placing the rubber strips is achieved.

Description

Technical Field

[0001] This application relates to the field of rubber molding die technology, specifically a rubber seal molding die and its usage method. Background Technology

[0002] Rubber seals are round or irregularly shaped leak-proof elements made of rubber material. They achieve the sealing function by compensating for gaps through elastic deformation and are widely used in the automotive, machinery, electronics, petrochemical, and aerospace industries. In the production process of rubber seals, molds are required to shape them into the desired form; For example, the patent with announcement number CN218803412U discloses a molding die for a rubber seal. The lower die has grooves on both sides, and sliders are slidably arranged inside them. The position of the upper abutment can be adjusted so that one or more rubber strips can be quickly positioned and placed on the surface of the lower die through the abutment, increasing production efficiency and ensuring uniform distribution of rubber during vulcanization molding, thus ensuring the molding quality of the rubber seal. However, although the above-mentioned patent can achieve the positioning of rubber strips, the placement of rubber strips before and after placement, as well as the handling of rubber strips after processing, is mostly done manually. When facing a large production volume, the large number of rubber strips may lead to a linear increase in manual operation time. Furthermore, long-term repetitive placement actions can easily cause operator fatigue, thereby reducing the number of placements that can be completed per unit time, and may even lead to positioning deviations due to negligence. Therefore, it is necessary to provide a rubber seal molding die and its usage method to solve the above problems.

[0003] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0004] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a rubber sealing mold and its usage method, so as to achieve the effect of automatically picking up and putting in rubber strips.

[0005] The technical solution adopted by this application to solve its technical problem is: a rubber sealing mold, including a base; a hot pressing assembly, which is disposed on the base and has a track suitable for installation and a lower mold suitable for placement; and a loading and unloading assembly, which is disposed on the hot pressing assembly and includes: a platform, which is installed at the bottom of the track and has a vertical plate installed on the platform; a loading section, which is disposed on the vertical plate and is adapted to convey rubber strips to the top of the lower mold; a cutting section, which is disposed on the loading section and is adapted to cut the rubber strips; and a gripping section, which is disposed on the vertical plate and is adapted to grip the molded rubber material.

[0006] Furthermore, the hot pressing assembly includes a hot press fixedly mounted on a base, the hot press having an upper mold and a lower mold slidably mounted on a track, and a hydraulic cylinder fixedly mounted on the hot press, the output end of the hydraulic cylinder being connected to the lower mold.

[0007] Furthermore, the feeding section includes two sets of support plates fixedly installed at one end of the platform. A roller is rotatably installed between the two sets of support plates. Multiple sets of partitions are provided on the roller. Multiple sets of mounting plates are installed on the platform. Fixed plates are fixedly installed on the mounting plates. Multiple sets of guide block groups are provided on the fixed plates. Each guide block group consists of two sets of guide blocks.

[0008] Furthermore, a lower plate is fixedly installed on the vertical plate, and a second moving module is provided on the lower plate. The second moving module has a second slider, and a base plate is fixedly installed on the second slider. A second cylinder is fixedly installed on the base plate, and a pad is fixedly installed at the output end of the second cylinder. An upper pressure block is fixedly installed on the pad, and a lower pressure block is provided on one side of the second cylinder. The lower pressure block is installed on the base plate and located below the upper pressure block.

[0009] Furthermore, a first synchronous pulley is fixedly installed at one end of the roller, and a second synchronous pulley is rotatably installed on the side of the lower plate near the track. A synchronous belt is provided for the transmission of the second synchronous pulley and the first synchronous pulley. A gear is fixedly installed on the second synchronous pulley. An electric push rod is installed at the bottom of the base plate, and a rack is fixedly installed at the output end of the electric push rod.

[0010] Furthermore, the cutting section includes a third cylinder fixedly mounted on the top of the fixed plate, a connecting block fixedly mounted on the output end of the third cylinder, a top plate fixedly mounted on the top of the connecting block, a cutting cylinder fixedly mounted on the top plate, a blade holder fixedly mounted on the output end of the cutting cylinder, and a cutting blade detachably mounted on the blade holder.

[0011] Furthermore, two sets of connecting rods are fixedly installed at the bottom of the top plate, and a moving block is fixedly installed at the bottom of the connecting rod. Two sets of slide rails are fixedly installed on the fixed plate, and the two sets of moving blocks are slidably set on the two sets of slide rails respectively. An insert block is fixedly installed on both sets of moving blocks, and the insert block is located below the cutter.

[0012] Furthermore, the insert block has a clearance groove, and a dust collection box is fixedly installed on the side of the lower pressing block away from the insert block. The bottom of the dust collection box has a dust suction port, and a scraper and a brush are respectively provided on the bottom of the dust collection box. An interface is fixedly installed on the end of the dust collection box near the second cylinder.

[0013] Furthermore, the gripping unit includes an upper plate fixedly installed on the top of the vertical plate, on which a first moving module is fixedly installed. The first moving module and the second moving module have the same structure and principle, and each module has a first slider. A first cylinder is fixedly installed on the first slider, and a fixed frame is fixedly installed at the output end of the first cylinder. A suction cup is provided on the fixed frame.

[0014] A method for using a rubber seal molding die, the method comprising the following steps: Step 1: Start the loading and unloading assembly. The loading part places multiple sets of rubber strips onto the lower mold, and the cutting part cuts them. Step 2: Restart the loading and unloading assembly to separate the loading section from the cut rubber strip, and then reset it after separation; Step 3: The hot pressing assembly is activated, and the lower mold is transported to the area below the upper mold for mold closing. After mold closing, hot pressing is performed. Step 4: Start the hot pressing assembly to separate the upper and lower molds, and reset the lower mold; Step 5: Start the loading and unloading assembly. The gripping part will grab the molded rubber and separate it from the lower mold. Then, start the loading and unloading assembly again to load the material.

[0015] The beneficial effects of this application are: the rubber sealing mold and its usage method provided by this application can automatically pick up and place rubber strips and transport them to the lower mold by setting up the loading and unloading components, thereby reducing manual operation steps and achieving the effect of automatic picking up and placing of rubber strips.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an overall schematic diagram of a rubber seal molding die and its usage method according to this application; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 forFigure 2 Enlarged view of point B in the middle; Figure 4 for Figure 2 Enlarged view of point C in the middle; Figure 5 for Figure 2 Enlarged view of point D in the middle; Figure 6 for Figure 1 A schematic diagram of the overall structure of the middle section; Figure 7 for Figure 6 Enlarged view of point E in the middle; Figure 8 for Figure 6 Enlarged view of point F in the middle; Figure 9 for Figure 6 A cross-sectional view of the central section of the test. Figure 10 for Figure 9 Enlarged view of point G in the middle; The following are the labeling elements in the figure: 1. Base; 2. Hot pressing assembly; 21. Hot press; 22. Upper mold; 23. Lower mold; 24. Hydraulic cylinder; 25. Track; 3. Loading and unloading assembly; 31. Vertical plate; 32. Upper plate; 33. Lower plate; 34. Platform; 35. Gripping part; 36. First moving module; 37. First slider; 38. First cylinder; 39. Fixing frame; 4. Feeding section; 41. Second moving module; 42. Second slider; 43. Pad block; 44. Upper pressure block; 45. Lower pressure block; 46. Second cylinder; 5. Support plate; 51. Roller; 52. Partition plate; 53. Guide block assembly; 54. First synchronous pulley; 55. Synchronous belt; 56. Mounting plate; 57. Fixing plate; 58. Gear; 59. Rack; 6. Cutting section; 61. Third cylinder; 62. Connecting block; 63. Cutting cylinder; 64. Top plate; 65. Moving block; 651. Connecting rod; 652. Slide rail; 66. Knife holder; 67. Cutting knife; 68. Insertion block; 7. Limiting block; 71. Scraper; 72. Brush; 73. Dust collection box; 74. Interface. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] Example 1: As Figure 1 As shown, this application provides a rubber seal molding die, including a base 1, on which a hot pressing assembly 2 is disposed. The hot pressing assembly 2 is adapted to perform a hot pressing operation on a rubber strip. Specifically: The hot press assembly 2 includes a hot press 21 fixedly mounted on the base 1. The hot press 21 is prior art, such as the vulcanizing mechanism mentioned in the patent with publication number CN118456733B. The hot press 21 has an upper mold 22 suitable for vertical movement and a track 25 suitable for installation. The lower mold 23 is slidably mounted on the track 25, and a hydraulic cylinder 24 is fixedly mounted on the hot press 21. The output end of the hydraulic cylinder 24 is connected to the lower mold 23. The upper mold 22 and the lower mold 23 each have multiple sets of punches and cavities arranged in sequence. In use, the rubber strip to be processed is placed on the lower mold 23, the hydraulic cylinder 24 is started, and the lower mold 23 is driven to slide on the track 25. Then it is sent to the lower part of the upper mold 22. Then the hot press 21 drives the upper mold 22 to move downward until it closes with the lower mold 23 and performs hot pressing vulcanization to shape the rubber strip into the required shape. Then the upper mold 22 and the lower mold 23 are separated, the hydraulic cylinder 24 drives the lower mold 23 away from the hot press 21, and the material can be removed manually. like Figures 1-8 As shown, a loading and unloading assembly 3 is provided on the track 25. The loading and unloading assembly 3 is suitable for automatically placing rubber strips and taking out the molded material. The loading and unloading assembly 3 includes a platform 34 fixedly installed at the bottom of the track 25. A vertical plate 31 is fixedly installed on the platform 34, and a loading part 4 is provided at one end of the platform 34. The loading part 4 includes two sets of support plates 5 fixedly installed at one end of the platform 34. A roller 51 is rotatably installed between the two sets of support plates 5. Multiple sets of partitions 52 are provided on the roller 51 to facilitate winding multiple sets of rubber strips to be processed onto the roller 51 and separating them through the partitions 52. Multiple sets of mounting plates 56 are fixedly installed on the platform 34. The mounting plates 56 are located between the roller 51 and the track 25. A fixing plate 57 is fixedly installed on the mounting plates 56. Multiple sets of guide block groups 53 are provided on the fixing plate 57. Each guide block group 53 consists of two sets of guide blocks, so that one end of the rubber strip wound on the roller 51 can pass through the two sets of guide blocks 53 and extend out of the guide block group 53 away from the roller 51. A lower plate 33 is fixedly installed on the vertical plate 31. A second moving module 41 is provided on the lower plate 33. The second moving module 41 is powered by an electric motor or hydraulic motor and uses a transmission mechanism that combines a ball screw and a linear guide. The second moving module 41 has a second slider 42. Under the drive of the second moving module 41, the second slider 42 is moved in the horizontal direction. A base plate is fixedly installed on the second slider 42, a second cylinder 46 is fixedly installed on the base plate, a pad 43 is fixedly installed on the output end of the second cylinder 46, an upper pressure block 44 is fixedly installed on the pad 43, and a lower pressure block 45 is provided on one side of the second cylinder 46. The lower pressure block 45 is installed on the base plate and located below the upper pressure block 44. So that the upper pressure block 44 can be driven to move up and down under the drive of the second cylinder 46, and the second slider 42 can be driven to move the base plate in the horizontal direction under the drive of the second moving module 41, and the upper pressure block 44 and the lower pressure block 45 can be moved. like Figures 2-5 As shown, a cutting part 6 is provided on the fixed plate 57. The cutting part 6 includes a third cylinder 61 fixedly installed on the top of the fixed plate 57. A connecting block 62 is fixedly installed on the output end of the third cylinder 61. A top plate 64 is fixedly installed on the top of the connecting block 62. A cutting cylinder 63 is fixedly installed on the top plate 64. A knife holder 66 is fixedly installed on the output end of the cutting cylinder 63. A cutting blade 67 is detachably installed on the knife holder 66. Then, driven by the cutting cylinder 63, the cutter 67 is driven to move up and down, and driven by the third cylinder 61, the connecting block 62 is driven to move horizontally. Meanwhile, two sets of connecting rods 651 are fixedly installed at the bottom of the top plate 64. A moving block 65 is fixedly installed at the bottom of the connecting rod 651, and two sets of slide rails 652 are fixedly installed on the fixed plate 57. The two sets of moving blocks 65 are slidably arranged on the two sets of slide rails 652 respectively, and an insert block 68 is fixedly installed on both sets of moving blocks 65. The insert block 68 is located below the cutter 67, and the insert block 68 has a clearance groove adapted to the cutter 67 (not shown in the figure). It should be noted that, in the initial state, the lower mold 23 is located at the end of the track 25 near the roller 51, the cutter 67 and the insert block 68 are both located on the outer side of the guide block group 53 away from the roller 51, while the upper pressure block 44 and the lower pressure block 45 are both located on the side of the cutter 67 away from the roller 51, and at the same time, the highest point of the lower pressure block 45 is lower than the highest point of the insert block 68. like Figures 9-10 Furthermore, the multiple cavities of the lower mold 23 can be divided into a front mold cavity near the roller 51 and a rear mold cavity away from the roller 51. The front side of the front mold cavity has a second end point suitable for cutting, and the rear mold cavity has a first end point suitable for positioning. The distance from the first end point to the side of the lower mold 23 and the distance from the second end point to the side of the lower mold 23 are the same. At this time, the rubber strip passing through the guide block assembly 53 will simultaneously pass between the cutter 67 and the insert block 68, as well as between the upper pressure block 44 and the lower pressure block 45, and slightly extend beyond one side of the lower pressure block 45. Figure 10 ), and fits against the upper surface of the insert 68; Then, during feeding, the second cylinder 46 can be activated to drive the upper pressure block 44 to move downward until one end of multiple sets of rubber strips is clamped. Then, the second moving module 41 drives the upper pressure block 44 to move through the second slider 42, and drives the rubber strip to move downward to the mold 23. At this time, the roller 51 will unwind synchronously until one end of the rubber strip passes the rear mold cavity and is located at the first end point. At this time, the third cylinder 61 is activated, which drives the cutter 67 to move to the upper surface of the lower mold 23 until the cutter 67 is located at the first end of the front mold cavity. The cutting cylinder 63 is activated to drive the cutter 67 downward to cut the rubber strip. It should be noted that there is a large friction between the rubber strip and the guide block group 53, so that the rubber strip located in the guide block group 53 will not move randomly after the cutting is completed. Start the second cylinder 46 to move the upper pressure block 44 away from the rubber strip, and the second moving module 41 continues to move the upper pressure block 44 and the lower pressure block 45 through the second slider 42 to separate them from the rubber strip. At this time, the cut rubber strips fall onto the upper surface of the multiple mold cavities. Start the hydraulic cylinder 24 to move the lower mold 23 to below the upper mold 22, and then perform hot pressing. A gripping part 35 is also provided on the vertical plate 31. The gripping part 35 includes an upper plate 32 fixedly installed on the top of the vertical plate 31. A first moving module 36 is fixedly installed on the upper plate 32. The structure and principle of the first moving module 36 and the second moving module 41 are the same, and a first slider 37 suitable for sliding is provided. A first cylinder 38 is fixedly installed on the first slider 37. A fixing frame 39 is fixedly installed on the output end of the first cylinder 38. A suction cup is provided on the fixing frame 39. After the rubber is formed on the lower mold 23 and separated from the lower mold 23, the hydraulic cylinder 24 moves the lower mold 23 to the initial position. At this time, the first moving module 36 drives the first cylinder 38 and the suction cup to move above the material. Then the first cylinder 38 drives the suction cup to move downward to adsorb and grab the formed material.

[0021] Example 2: Although the above examples can achieve automatic feeding and cutting of rubber strips, after rubber molding, the vulcanization reaction may be incomplete due to insufficient vulcanizing agent, imbalance of accelerator ratio, or improper control of vulcanization time and temperature. The incompletely vulcanized rubber molecular chains may abnormally adhere to the lower mold 23, thereby forming residues on the surface of the lower mold 23, which will affect subsequent molding processes. like Figures 3-7 As shown, in order to solve this problem, a dust collection box 73 is fixedly installed on the side of the lower pressure block 45 away from the insert block 68. The bottom of the dust collection box 73 has a dust collection port, and a scraper 71 and a brush 72 are respectively provided on the bottom of the dust collection box 73. The bottom of the scraper 71 can contact the upper surface of the lower mold 23, and the lowest point of the bristles of the brush 72 is lower than the lowest point of the scraper 71. An interface 74 is fixedly installed at one end of the dust collection box 73 near the second cylinder 46. The interface 74 can be connected to an external vacuum cleaner through a hose. The vacuum cleaner can be installed on the lower plate 33, and a limiting block 7 is fixedly installed on the second slider 42. A through hole can be provided on the limiting block 7 to guide the hose. Furthermore, when the upper pressure block 44 and the lower pressure block 45 clamp the rubber strip and feed it into the lower mold 23 under the drive of the second moving module 41, the scraper 71 can contact the upper surface of the lower mold 23 to clean the upper surface of the lower mold 23. At the same time, the brush can clean the inside of the mold cavity. Under the drive of the dust collection device, the residue of the scraper 71 and the brush 72 is absorbed and cleaned in real time. When the rubber strip passes the first end point of the rear mold cavity, the second moving module 41 continues to move until it drives the scraper 71 to move to one side of the lower mold 23 to clean the entire upper surface of the lower mold 23, so as to avoid the residue adhering to the surface of the lower mold 23, thereby affecting the subsequent molding. A first synchronous pulley 54 is fixedly installed at one end of the roller 51, and a second synchronous pulley is rotatably installed on the side of the lower plate 33 near the track 25. The second synchronous pulley and the first synchronous pulley 54 are connected by a synchronous belt 55 for transmission. A gear 58 is fixedly installed on the second synchronous pulley, and an electric push rod (not shown in the figure) is installed at the bottom of the base plate. A rack 59 is fixedly installed at the output end of the electric push rod so that the electric push rod can drive the rack 59 to move along the axial direction of the roller 51. It should be noted that, in the initial state, the rack 59 is located above and outside the gear 58. When the scraper 71 moves from one side of the lower mold 23 to the other side to clean the surface of the lower mold 23, the left end of the rack 59 passes over the gear 58 and the rubber strip is stretched again. The electric push rod is activated to drive the rack 59 to move along the axis of the roller 51 towards the roller 51 until the rack 59 is directly above the gear 58. The second moving module 41 is activated to drive the rubber strip to retract. At this time, the rack 59 will drive the gear 58 to rotate counterclockwise, thereby driving the second synchronous pulley and the first synchronous pulley 54 to rotate counterclockwise through the synchronous belt 55, which in turn drives the roller 51 to rotate counterclockwise. At this time, the roller 51 is wound up. This causes the elongated rubber strip to be wound up again to rewind the elongated part. When the right end of the rack 59 passes over the gear 58 and is initially separated from the gear 58, the lower pressure block 45 and the rubber strip are both located at the first end of the rear mold cavity. At this time, the cutting part 6 is started to cut, and the electric push rod drives the rack 59 to reset again. If the lower mold 23 is transported to the lower mold 22 via the hydraulic cylinder 24 at this time, the rubber strip located between the guide block group 53 and the second end will sag due to gravity, which will cause interference when the material is fed through the upper pressure block 44 and the lower pressure block 45. Therefore, after the cutting is completed, the upper pressure block 44 releases the rubber strip, and the second moving module 41 drives the lower pressure block 45 to move to one side of the lower mold 23 again. At this time, the electric push rod drives the rack 59 to move again, and then the second moving module drives the lower pressure block 45 to reset. At this time, the rack 59 will contact the gear 58 again and drive the roller 51 to rewind, so as to rewind the excess rubber strip on the lower mold 23 after cutting. Since the highest point of the insert block 68 is higher than the highest point of the lower pressure block 45, the rubber strip always adheres to the insert block 68 during the resetting process of the lower pressure block 45, avoiding interference between the rubber strip and the lower pressure block 45, until the lower pressure block 45 is reset, at which time the rubber strip is in the initial state.

[0022] Example 3: This application also provides a method for using a rubber seal molding die, specifically including the following steps: Step 1: Start the loading and unloading assembly 3, and place multiple sets of rubber strips on the lower mold 23 through the loading part 4, and cut them through the cutting part 6; Step 2: Restart the loading and unloading assembly 3 to separate the loading part 4 from the cut rubber strip, and reset it after separation; Step 3: The hot pressing assembly 2 is started, and the lower mold 23 is transported to the lower mold 22 for mold closing. After mold closing, hot pressing is performed. Step 4: The hot pressing assembly 2 is activated to separate the upper mold 22 and the lower mold 23, and the lower mold 23 is reset; Step 5: Start the loading and unloading assembly 3, and use the gripping part 35 to grip the molded rubber and separate it from the lower mold 23. Then start the loading and unloading assembly 3 again to load the material.

[0023] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A molding die for a rubber seal, characterized in that: include: Base (1); A hot press assembly (2) is disposed on the base (1) and has a track (25) suitable for installation and a lower mold (23) suitable for placement. A loading / unloading assembly (3) is disposed on the hot pressing assembly (2), the loading / unloading assembly (3) comprising: Platform (34), which is installed at the bottom of the track (25), and a vertical plate (31) is installed on the platform (34). The feeding section (4) is disposed on the vertical plate (31) and is adapted to convey the rubber strip to the top of the lower mold (23); A cutting section (6) is provided on the feeding section (4) and the cutting section (6) is adapted to cut the rubber strip; A gripping part (35) is disposed on the vertical plate (31) and is adapted to grip the formed rubber material.

2. The rubber seal molding die according to claim 1, characterized in that: The hot pressing assembly (2) includes a hot press (21) fixedly installed on the base (1). The hot press (21) has an upper mold (22) and a lower mold (23) slidably disposed on the track (25). A hydraulic cylinder (24) is fixedly installed on the hot press (21), and the output end of the hydraulic cylinder (24) is connected to the lower mold (23).

3. The rubber seal molding die according to claim 1, characterized in that: The feeding section (4) includes two sets of support plates (5) fixedly installed at one end of the platform (34). A roller (51) is rotatably installed between the two sets of support plates (5). Multiple sets of partitions (52) are provided on the roller (51). Multiple sets of mounting plates (56) are installed on the platform (34). A fixing plate (57) is fixedly installed on the mounting plate (56). Multiple sets of guide block groups (53) are provided on the fixing plate (57). The guide block group (53) consists of two sets of guide blocks.

4. The rubber seal molding die according to claim 3, characterized in that: A lower plate (33) is fixedly installed on the vertical plate (31). A second moving module (41) is provided on the lower plate (33). The second moving module (41) has a second slider (42). A base plate is fixedly installed on the second slider (42). A second cylinder (46) is fixedly installed on the base plate. A pad (43) is fixedly installed at the output end of the second cylinder (46). An upper pressure block (44) is fixedly installed on the pad (43). A lower pressure block (45) is provided on one side of the second cylinder (46). The lower pressure block (45) is installed on the base plate and located below the upper pressure block (44).

5. The rubber seal molding die according to claim 4, characterized in that: A first synchronous pulley (54) is fixedly installed at one end of the roller (51). A second synchronous pulley is rotatably installed on the side of the lower plate (33) near the track (25). A synchronous belt (55) is provided on the second synchronous pulley and the first synchronous pulley (54) for transmission. A gear (58) is fixedly installed on the second synchronous pulley. An electric push rod is installed at the bottom of the base plate. A rack (59) is fixedly installed at the output end of the electric push rod.

6. The rubber seal molding die according to claim 5, characterized in that: The cutting part (6) includes a third cylinder (61) fixedly installed on the top of the fixed plate (57). A connecting block (62) is fixedly installed at the output end of the third cylinder (61). A top plate (64) is fixedly installed on the top of the connecting block (62). A cutting cylinder (63) is fixedly installed on the top plate (64). A knife holder (66) is fixedly installed at the output end of the cutting cylinder (63). A cutting blade (67) is detachably installed on the knife holder (66).

7. The rubber seal molding die according to claim 6, characterized in that: Two sets of connecting rods (651) are fixedly installed at the bottom of the top plate (64). A moving block (65) is fixedly installed at the bottom of the connecting rod (651). Two sets of slide rails (652) are fixedly installed on the fixed plate (57). The two sets of moving blocks (65) are slidably arranged on the two sets of slide rails (652). An insert block (68) is fixedly installed on both sets of moving blocks (65). The insert block (68) is located below the cutter (67).

8. The rubber seal molding die according to claim 7, characterized in that: The insert (68) has an clearance groove. A dust collection box (73) is fixedly installed on the side of the lower pressing block (45) away from the insert (68). The bottom of the dust collection box (73) has a dust suction port. A scraper (71) and a brush (72) are respectively provided on the bottom of the dust collection box (73). An interface (74) is fixedly installed on the end of the dust collection box (73) near the second cylinder (46).

9. A rubber seal molding die according to claim 4, characterized in that: The gripping part (35) includes an upper plate (32) fixedly installed on the top of the vertical plate (31). A first moving module (36) is fixedly installed on the upper plate (32). The first moving module (36) and the second moving module (41) have the same structure and principle, and have a first slider (37). A first cylinder (38) is fixedly installed on the first slider (37). A fixing frame (39) is fixedly installed on the output end of the first cylinder (38). A suction cup is provided on the fixing frame (39).

10. The method of using a rubber seal molding die according to claim 1, characterized in that: The usage method has the following steps: Step 1: Start the loading and unloading assembly (3), place multiple sets of rubber strips on the lower mold (23) through the loading part (4), and cut them through the cutting part (6); Step 2: Restart the loading and unloading assembly (3) to separate the loading part (4) from the cut rubber strip, and reset it after separation; Step 3: The hot pressing assembly (2) is started, and the lower mold (23) is transported to the lower mold (22) for mold closing. After mold closing, hot pressing is performed. Step 4: Start the hot pressing assembly (2) to separate the upper mold (22) and the lower mold (23), and reset the lower mold (23); Step 5: Start the loading and unloading assembly (3), grab the molded rubber with the gripping part (35) and separate it from the lower mold (23), and then start the loading and unloading assembly (3) again to load the material.

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