A high-performance automotive rubber sealing ring preparation process and preparation system

Abstract

The present invention discloses a high-performance automotive rubber sealing ring preparation process and preparation system, including the following steps: raw material preparation: according to the use environment and performance requirements of the sealing ring, weigh various suitable raw materials; raw material mixing: different materials are mixed through an internal mixer to ensure that the materials are evenly mixed; molding: the mixed raw materials are pressed and molded through a hot pressing molding device. The high-performance automotive rubber sealing ring preparation process and preparation system provided by the present invention places a strip sealing ring on a lower molding die, and performs hot pressing treatment by moving the lower molding die upward and closing the mold with the upper molding die. After the treatment is completed, when the lower molding die moves downward, the sealing ring edge material on the lower molding die is cut and separated by the cutting component, and then the cutting component passively drives the ejection component to move upward to remove the sealing ring from the lower molding die, so as to achieve the coordination of cutting and ejection, and then the sealing ring and the edge material are passively removed by moving the cutting component.

Description

Technical Field

[0001] The invention relates to the technical field of sealing ring preparation, and in particular to a preparation process and a preparation system for a high-performance automobile rubber sealing ring. Background Art

[0002] Automobile rubber sealing rings are installed on various mechanical equipment to seal at specified temperature and pressure and in different liquids and gases, in static or moving state. They are widely used in automobile engine systems, piston seals in hydraulic cylinders, etc. to ensure the sealing and safety of the system.

[0003] In the preparation process of rubber sealing rings, extrusion, compression molding and other methods are used for the preparation of the sealing rings. When using hot pressing, the sealing ring is placed in the lower mold of the molding equipment, and then the upper and lower molds are closed for compression molding. Since the material of the sealing ring needs to be larger than the capacity of the mold cavity, the molded sealing ring and the excess edge material form a whole piece of molding material, and then the upper and lower molds are opened, and the molded whole is taken out manually or by driving equipment for separate cutting, which increases the steps of sealing ring preparation and reduces the efficiency of sealing ring preparation. Summary of the invention

[0004] The purpose of the present invention is to provide a high-performance automobile rubber sealing ring preparation process and preparation system to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a process for preparing a high-performance automotive rubber sealing ring, comprising the following steps:

[0006] S1. Raw material preparation: weigh various suitable raw materials according to the use environment and performance requirements of the sealing ring;

[0007] S2, raw material mixing: the different materials in step S1 are mixed by an internal mixer to ensure that the materials are evenly mixed;

[0008] S3, molding: the raw materials mixed in S2 are pressed into shape by hot pressing molding equipment;

[0009] S4, vulcanization: put the formed sealing ring into the vulcanizer for vulcanization treatment.

[0010] The hot pressing forming equipment in step S3 includes a workbench, on which a hot pressing forming part is arranged, and the hot pressing forming part includes the upper forming mold and the lower forming mold. After the upper forming mold and the lower forming mold are closed, the hot pressing forming process is performed.

[0011] As a further description of the above technical solution:

[0012] A high-performance automobile rubber sealing ring preparation system, which is used to realize a high-performance automobile rubber sealing ring preparation process, wherein the hot pressing molding equipment further comprises a cutting assembly, and after the upper molding die and the lower molding die are opened, the molding sealing ring edge material is cut by the cutting assembly;

[0013] After the cutting is completed, the sealing ring is ejected by the ejection assembly and is moved by the cutting assembly for unloading.

[0014] As a further description of the above technical solution:

[0015] The hot-pressed molded part also includes a plurality of arc grooves opened on the side opposite to the lower molding die and the upper molding die, and a plurality of connecting plates are fixedly connected to the outside of the lower molding die.

[0016] As a further description of the above technical solution:

[0017] It also includes a driving component, which is used to drive the lower molding die to move. The driving component includes a hydraulic cylinder fixed to the workbench, the output end of the hydraulic cylinder is fixedly connected to a driving plate, a plurality of supporting plates are fixedly connected to the driving plate, each of the supporting plates passes through each connecting plate, and each of the supporting plates is fixedly connected to a resistance plate.

[0018] As a further description of the above technical solution:

[0019] The cutting assembly includes two guide plates and a cutting plate. Both sides of the cutting plate are slidably arranged in the two guide plates through guide rods. The two guide plates are fixed on the workbench, and a plurality of cutting knives are fixedly connected to the bottom of the cutting plate.

[0020] As a further description of the above technical solution:

[0021] The cutting assembly also includes two support rods fixed on the lower forming die, the support rods are in movably contact with a plurality of guide rods located on the same side, each support plate is rotatably connected to a pressure plate, and each support plate is fixedly connected to a first limit plate.

[0022] As a further description of the above technical solution:

[0023] A plurality of one-way plates are rotatably connected in the guide plate, and a second limiting plate is fixedly connected in the guide plate.

[0024] As a further description of the above technical solution:

[0025] The ejector assembly includes a plurality of ejector plates slidably disposed in the lower molding die, and a plurality of ejector rods slidably disposed in the workbench, the ejector rods passing through the lower molding die and in active contact with the ejector plates;

[0026] It also includes a moving plate, which is fixedly connected to each of the ejection rods.

[0027] As a further description of the above technical solution:

[0028] The ejection assembly also includes two fixed rods fixed to the bottom of the workbench, the two fixed rods are rotatably connected to the outside of the two steering plates, the two steering plates are in active contact with the movable plate, and each of the support plates is fixedly connected to an abutment plate.

[0029] As a further description of the above technical solution:

[0030] It also includes a reset component, which includes an L-shaped plate fixed on the workbench, an electric telescopic rod fixedly connected to the L-shaped plate, an output end of the electric telescopic rod fixedly connected to a pull plate, one side of the cutting plate fixedly connected to a U-shaped plate, and the pull plate is slidably arranged in the U-shaped plate.

[0031] In the above technical scheme, the present invention provides a high-performance automobile rubber sealing ring preparation process and preparation system with the beneficial effects of:

[0032] The present invention places a strip-shaped sealing ring on a lower molding die, moves the lower molding die upward and closes the mold with the upper molding die for hot pressing treatment, after the treatment is completed, when the lower molding die moves downward, the sealing ring edge material on the lower molding die is cut and separated by a cutting component, because heat remains on the sealing ring at this time, which facilitates the cutting component to cut, and then the cutting component passively drives the ejection component to move upward to take the sealing ring out of the lower molding die, so as to achieve the coordination of cutting and ejection, and then the sealing ring and the edge material are passively taken out by moving the cutting component, without the need for manual or other equipment to take out, thereby reducing the steps of equipment operation, realizing the unloading of the sealing ring, and saving time and labor.

[0033] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0034] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0036] Figure 1A schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0038] Figure 3 A schematic diagram of a longitudinal section structure provided by an embodiment of the present invention;

[0039] Figure 4 A schematic diagram of a partial three-dimensional structure of an ejector assembly and a hot-pressed formed part provided in an embodiment of the present invention;

[0040] Figure 5 A schematic diagram of the three-dimensional structure of a guide plate provided in an embodiment of the present invention;

[0041] Figure 6 The embodiment of the present invention provides Figure 1 An enlarged view of point A is shown;

[0042] Figure 7 The embodiment of the present invention provides Figure 3 An enlarged view of point B is shown;

[0043] Figure 8 The embodiment of the present invention provides Figure 3 An enlarged view of point C is shown;

[0044] Fig. 9 The embodiment of the present invention provides Figure 4 An enlarged view of D is shown.

[0045] Description of reference numerals:

[0046] 1. Workbench; 21. Lower forming die; 22. Upper forming die; 23. Arc groove; 24. Connecting plate; 31. Hydraulic cylinder; 32. Driving plate; 33. Support plate; 34. Abutment plate; 41. Cutting plate; 42. Cutting knife; 43. Guide plate; 44. Guide rod; 45. Support rod; 46. Press plate; 47. First limit plate; 48. One-way plate; 49. Second limit plate; 51. Ejector plate; 52. Ejector rod; 53. Moving plate; 54. Fixed rod; 55. Steering plate; 56. Abutment plate; 61. L-shaped plate; 62. Electric telescopic rod; 63. Pull plate; 64. U-shaped plate. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0048] See also Figure 1-9 The present embodiment provides a high-performance automotive rubber sealing ring preparation process, comprising the following steps:

[0049] S1. Raw material preparation: weigh various suitable raw materials according to the use environment and performance requirements of the sealing ring;

[0050] S2, raw material mixing: the different materials in step S1 are mixed by an internal mixer to ensure that the materials are evenly mixed;

[0051] S3, molding: the raw materials mixed in S2 are pressed into shape by hot pressing molding equipment;

[0052] S4, vulcanization: put the formed sealing ring into the vulcanizer for vulcanization treatment.

[0053] The hot pressing molding equipment in step S3 includes a workbench 1, on which a hot pressing molded part is arranged. The hot pressing molded part includes an upper molding die 22 and a lower molding die 21. After the upper molding die 22 and the lower molding die 21 are closed, a hot pressing molding process is performed.

[0054] In an embodiment further provided by the present invention, the hot pressing molding device further includes a cutting assembly, and after the upper molding die 22 and the lower molding die 21 are opened, the cutting assembly is used to cut the edge material of the molded sealing ring;

[0055] After the cutting is completed, the sealing ring is ejected by the ejection assembly and is moved by the cutting assembly for unloading.

[0056] A strip sealing ring is placed on the lower molding die 21, and the lower molding die 21 is moved upward to close the mold with the upper molding die 22 for hot pressing treatment. After the treatment is completed, when the lower molding die 21 is moved downward, the sealing ring edge material on the lower molding die 21 is cut and separated by the cutting component. Since there is residual heat on the sealing ring at this time, it is convenient for the cutting component to cut. Then the cutting component passively drives the ejection component to move upward to remove the sealing ring from the lower molding die 21, so as to achieve the coordination of cutting and ejection. Then the sealing ring and the edge material are passively removed by moving the cutting component, without manual or other equipment removal, thereby reducing the steps of equipment operation, realizing the unloading of the sealing ring, saving time and labor.

[0057] Furthermore, the hot-pressed molded part also includes a plurality of arc grooves 23 opened on the opposite side of the lower molding die 21 and the upper molding die 22. The arc grooves 23 of the upper molding die 22 and the lower molding die 21 correspond to each other one by one, and the arc grooves 23 of the upper molding die 22 and the lower molding die 21 can be combined to form a complete annular groove for pressing into a sealing ring. The lower molding die 21 is fixedly connected to a plurality of connecting plates 24.

[0058] In the embodiment further provided by the present invention, it also includes a driving component, which is used to drive the lower molding die 21 to move. When the driving component moves upward, it mainly drives the lower molding die 21 to move. After the lower molding die 21 moves down to the workbench 1, the driving device switches to driving the cutting plate 41 to realize the drive switching between the lower molding die 21 and the cutting plate 41. The driving component includes a hydraulic cylinder 31 fixed to the workbench 1, and the output end of the hydraulic cylinder 31 is fixedly connected to a driving plate 32. A plurality of support plates 33 are fixedly connected to the driving plate 32, and each support plate 33 passes through each connecting plate 24 respectively, and each support plate 33 is fixedly connected to a contact plate 34. When the hydraulic cylinder 31 drives the driving plate 32 to move upward, the support plates 33 move synchronously. When the contact plate 34 of the support plate 33 contacts the connecting plate 24, the support plate 33 continues to move, driving the connecting plate 24 to move synchronously, thereby realizing the movement of the lower molding die 21.

[0059] In the embodiment provided by the present invention, the cutting assembly includes two guide plates 43 and a cutting plate 41. Both sides of the cutting plate 41 are slidably arranged in the two guide plates 43 through guide rods 44. The two guide plates 43 are fixed on the workbench 1. A plurality of cutting knives 42 are fixedly connected to the bottom of the cutting plate 41. Each cutting knife 42 is respectively adapted to each arc groove 23 and is used for cutting sealing rings and edge materials, thereby reducing subsequent cutting processing and improving production efficiency.

[0060] Furthermore, the cutting assembly further includes two support rods 45 fixed to the lower forming die 21, the support rods 45 are in active contact with a plurality of guide rods 44 located on the same side, each support plate 33 is rotatably connected to a pressure plate 46, and each support plate 33 is fixedly connected to a first limit plate 47, and the first limit plate 47 is located above the pressure plate 46 (such as Figure 5 As shown in the figure, the cutting plate 41 contacts the pressing plate 46, restricting the turning of the pressing plate 46 so that the pressing plate 46 can only rotate downward. When the pressing plate 46 presses the cutting plate 41 to move downward, the sealing ring is cut.

[0061] Specifically, a plurality of one-way plates 48 are rotatably connected in the guide plate 43, and a second limit plate 49 is fixedly connected in the guide plate 43. The second limit plate 49 overlaps the one-way plate 48 to control the one-way plate 48 to rotate unidirectionally, so that the guide rod 44 moves unidirectionally in the guide plate 43, and the cutting plate 41 moves unidirectionally in the guide plate 43.

[0062] In a solution further provided by the present invention, the ejection assembly includes a plurality of ejection plates 51 slidably disposed in the lower molding die 21, a plurality of ejection rods 52 are slidably disposed in the workbench 1, the ejection rods 52 penetrate the lower molding die 21 and are in active contact with the ejection plates 51, the ejection plates 51 move a distance equal to the depth of the arc groove 23, and when the ejection plates 51 move upward, the ejection plates 51 move to be level with the lower molding die 21, thereby ejecting the sealing ring out of the arc groove 23, and realizing separation of the sealing ring from the arc groove 23;

[0063] It also includes a moving plate 53 , which is fixedly connected to each ejection rod 52 .

[0064] In the present invention, the ejection assembly also includes two fixed rods 54 fixed to the bottom of the workbench 1, and the two fixed rods 54 are rotatably connected to the outside of the two fixed rods 54. The two steering plates 55 are in active contact with the movable plate 53. Each support plate 33 is fixedly connected to an abutment plate 56. When the support plate 33 moves downward, the abutment plate 56 is driven to move, so that the abutment plate 56 overlaps the steering plate 55 and pushes the steering plate 55 to rotate on the fixed rod 54, thereby pushing the movable plate 53 to move upward. The steering plate 55 is rotated on the fixed rod 54 with an angle limit, and the steering plate 55 rotates to push the movable plate 53 to move a distance equal to the depth of the arc groove 23.

[0065] The present invention also includes a reset component, which includes an L-shaped plate 61 fixed on the workbench 1, an electric telescopic rod 62 fixedly connected to the L-shaped plate 61, an output end of the electric telescopic rod 62 fixedly connected to a pull plate 63, one side of the cutting plate 41 fixedly connected to a U-shaped plate 64, and the pull plate 63 is slidably arranged in the U-shaped plate 64.

[0066] During preparation, the prepared raw material is placed on the lower molding die 21, and then the hydraulic cylinder 31 is driven to drive the driving plate 32 to move upward, thereby driving the support plate 33 to move synchronously. When the abutment plate 34 on the support plate 33 contacts the connecting plate 24, it continues to move, so that the abutment plate 56 pushes the connecting plate 24 to move upward synchronously, thereby driving the lower molding die 21 to move upward synchronously until it moves to the upper molding die 22 for closing the mold and performing hot pressing molding treatment.

[0067] When the lower molding die 21 moves upward, the support rod 45 is driven to move synchronously, thereby pushing the cutting plate 41 to move upward synchronously, so that the guide rod 44 moves in the guide plate 43. After the lower molding die 21 moves to close the mold with the upper molding die 22, the cutting plate 41 is driven to move to the top of the guide plate 43. When the guide rod 44 moves upward, the guide rod 44 pushes the one-way plate 48 to rotate. After the one-way plate 48 is moved out, the one-way plate 48 is rotated by gravity to overlap with the second limiting plate 49, thereby limiting the guide rod 44.

[0068] When the lower molding die 21 moves downward, the cutting plate 41 is driven to move synchronously. At this time, the guide rod 44 is limited by the guide plate 43, so that the cutting plate 41 moves obliquely downward and gradually moves to the top of the lower molding die 21. When the cutting plate 41 moves to the connection between the inclined surface and the straight surface of the guide plate 43, the cutting plate 41 moves to the lower molding die 21 and contacts it due to the gravity of the cutting plate 41.

[0069] The lower forming die 21 is continuously moved downward. After the lower forming die 21 moves to the workbench 1, the support plate 33 is continuously moved downward to move the pressing plate 46 downward. When the pressing plate 46 moves downward and contacts the cutting plate 41, the pressing plate 46 is limited by the first limiting plate 47 so that the pressing plate 46 drives the cutting plate 41 to generate a downward force to cut the sealing ring, thereby separating the sealing ring from the edge material.

[0070] When the support plate 33 continues to move downward, it drives the abutment plate 56 to move downward synchronously, thereby pushing the steering plate 55 to rotate upward on the fixed rod 54, thereby pushing the movable plate 53 to move upward, so that the ejector rod 52 pushes the sealing ring to move upward until it moves out of the arc groove 23. When the cutting plate 41 moves upward in the guide plate 43, after the U-shaped plate 64 moves out of the pull plate 63, the electric telescopic rod 62 is extended to drive the pull plate 63 to move to the U-shaped plate 64 when the cutting plate 41 moves downward. After the cutting plate 41 moves down to the lower forming mold 21, the U-shaped plate 64 moves to the outside of the pull plate 63, and then the pull plate 63 is pulled by the electric telescopic rod 62 to move, so that the U-shaped plate 64 drives the cutting plate 41 to move out of the lower forming mold 21. When the cutting plate 41 moves, it drives the sealing ring and the edge material to move out of the lower forming mold 21, thereby realizing the hot pressing forming process of the sealing ring.

[0071] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A process for preparing a high-performance automotive rubber sealing ring, characterized in that: The following steps are involved: S1. Raw material preparation: weigh various suitable raw materials according to the use environment and performance requirements of the sealing ring; S2, raw material mixing: the different materials in step S1 are mixed by an internal mixer to ensure that the materials are evenly mixed; S3, molding: the raw materials mixed in S2 are pressed into shape by hot pressing molding equipment; S4, vulcanization: put the formed sealing ring into the vulcanizer for vulcanization treatment; The hot pressing forming equipment in step S3 comprises a workbench (1), on which a hot pressing forming part is arranged, and the hot pressing forming part comprises an upper forming die (22) and a lower forming die (21), and after the upper forming die (22) and the lower forming die (21) are closed, a hot pressing forming process is performed; The hot pressing molding device also includes a cutting component, and after the upper molding die (22) and the lower molding die (21) are opened, the cutting component is used to cut the molded sealing ring edge material; After the cutting is completed, the sealing ring is ejected by the ejection assembly and the cutting assembly is moved to unload the material; The hot-pressed molded part further comprises a plurality of arc-shaped grooves (23) formed on a side opposite to the lower molding die (21) and the upper molding die (22); the lower molding die (21) is externally fixedly connected with a plurality of connecting plates (24); It also includes a driving assembly, the driving assembly is used to drive the lower molding die (21) to move, the driving assembly includes a hydraulic cylinder (31) fixed to the workbench (1), the output end of the hydraulic cylinder (31) is fixedly connected to a driving plate (32), a plurality of supporting plates (33) are fixedly connected to the driving plate (32), each of the supporting plates (33) passes through each of the connecting plates (24), and each of the supporting plates (33) is fixedly connected to a contact plate (34); The cutting assembly comprises two guide plates (43) and a cutting plate (41); both sides of the cutting plate (41) are slidably arranged in the two guide plates (43) via guide rods (44); the two guide plates (43) are fixed on the workbench (1); and a plurality of cutting knives (42) are fixedly connected to the bottom of the cutting plate (41); The cutting assembly further comprises two support rods (45) fixed on the lower forming die (21), the support rods (45) being in active contact with a plurality of guide rods (44) located on the same side, each of the support plates (33) being rotatably connected to a pressure plate (46), and each of the support plates (33) being fixedly connected to a first limit plate (47); A plurality of one-way plates (48) are rotatably connected inside the guide plate (43), and a second limiting plate (49) is fixedly connected inside the guide plate (43); When the lower molding die (21) moves upward, the support rod (45) is driven to move synchronously, thereby pushing the cutting plate (41) to move upward synchronously, so that the guide rod (44) moves inside the guide plate (43). After the lower molding die (21) moves to close the mold with the upper molding die (22), the cutting plate (41) is driven to move to the top of the guide plate (43). When the guide rod (44) moves upward, the guide rod (44) pushes the one-way plate (48) to rotate. After the one-way plate (48) is moved out, the one-way plate (48) is rotated by gravity to overlap with the second limiting plate (49), thereby limiting the guide rod (44); When the lower molding die (21) moves downward, the cutting plate (41) is driven to move synchronously. At this time, the guide rod (44) is limited by the guide plate (43), so that the cutting plate (41) moves obliquely downward and gradually moves to the top of the lower molding die (21). When the cutting plate (41) moves to the connection between the inclined surface and the straight surface of the guide plate (43), the cutting plate (41) moves to the lower molding die (21) and contacts the cutting plate (41) due to the gravity of the cutting plate (41); The lower molding die (21) is continuously moved downward. When the lower molding die (21) moves to the workbench (1), the support plate (33) is continuously moved downward, so that the pressing plate (46) is moved downward. When the pressing plate (46) moves downward and contacts the cutting plate (41), the first limiting plate (47) is used to limit the pressing plate (46), so that the pressing plate (46) drives the cutting plate (41) to generate a downward force, thereby cutting the sealing ring.

2. A process for preparing a high-performance automotive rubber sealing ring according to claim 1, characterized in that: The ejection assembly comprises a plurality of ejection plates (51) slidably arranged in the lower molding die (21), and a plurality of ejection rods (52) are slidably arranged in the workbench (1), wherein the ejection rods (52) penetrate the lower molding die (21) and are in active contact with the ejection plates (51); It also comprises a movable plate (53), wherein the movable plate (53) is fixedly connected to each of the ejection rods (52).

3. A process for preparing a high-performance automotive rubber sealing ring according to claim 2, characterized in that: The ejection assembly further comprises two fixed rods (54) fixed to the bottom of the workbench (1), the two fixed rods (54) are rotatably connected to a steering plate (55) outside, the two steering plates (55) are in active contact with the movable plate (53), and each of the support plates (33) is fixedly connected to an abutment plate (56).

4. A process for preparing a high-performance automotive rubber sealing ring according to claim 1, characterized in that: The invention also comprises a reset assembly, the reset assembly comprising an L-shaped plate (61) fixed on the workbench (1), an electric telescopic rod (62) fixedly connected to the L-shaped plate (61), a pull plate (63) fixedly connected to the output end of the electric telescopic rod (62), a U-shaped plate (64) fixedly connected to one side of the cutting plate (41), and the pull plate (63) slidably arranged in the U-shaped plate (64).

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