Segmented vulcanization equipment for nitrile rubber

Abstract

The utility model relates to the technical field of nitrile rubber segmented vulcanization, and particularly discloses nitrile rubber segmented vulcanization equipment which comprises an outer vulcanization box, a box door is arranged on the surface of the outer vulcanization box, a plurality of placing frames are arranged on the inner wall of the outer vulcanization box, rotating wheels are arranged on the surfaces of the placing frames, and the rotating wheels are arranged on the outer surface of the outer vulcanization box. A shielding structure is arranged on the surface of the containing frame and comprises two rectangular boxes, the two rectangular boxes are fixedly connected with the surface of the containing frame, the inner walls of the rectangular boxes are rotationally connected with two-way screw rods, the surfaces of the two-way screw rods are in threaded connection with two driving blocks, and the surfaces of the driving blocks are rotationally connected with adjusting arms. The ends, away from the driving block, of the two adjusting arms are rotationally connected with adjusting blocks, and the surfaces of the adjusting blocks are fixedly connected with baffles. According to the utility model, the problem that butadiene-acrylonitrile rubber is easy to displace along the force acting direction of the rotating wheel when being jacked up is solved.

Description

Technical Field

[0001] This utility model relates to the field of segmented vulcanization technology of nitrile rubber, and in particular to a segmented vulcanization device for nitrile rubber. Background Technology

[0002] Nitrile rubber is a synthetic rubber with excellent oil and wear resistance. Segmented vulcanization of nitrile rubber is a vulcanization method to adjust and optimize the properties of nitrile rubber. By controlling the temperature and time of different stages in segments, the vulcanization can be more uniform, avoiding local over-vulcanization or under-vulcanization. Segmented vulcanization of nitrile rubber is widely used in the manufacture of various mechanical seals, gaskets, pipes and other rubber products that require oil and wear resistance.

[0003] Existing technology includes patent document CN220923043U, which discloses a segmented vulcanization device for nitrile rubber. This patent includes a vulcanization outer box, several anti-bottom-touching placement frame assemblies, several support frame assemblies, and several rotating frame assemblies. The anti-bottom-touching placement frame assemblies are arranged in a linear array and installed inside the vulcanization outer box. The rotating frame assemblies are respectively installed inside the anti-bottom-touching placement frame assemblies. The support frame assemblies are installed at the ends of the rotating frame assemblies. Each anti-bottom-touching placement frame assembly includes a placement frame base plate, several rotating grooves, a bottom box, an adjustment groove, a motor box, and a rotating motor. The rotating grooves are arc-shaped and formed on the body of the placement frame base plate. This invention, through the combined use of the support frame assemblies and rotating frame assemblies, continuously raises the bottom of nitrile rubber compounds of different sizes, avoiding the problem of insufficient contact between the bottom of the rubber compound and the hot air in the vulcanization box, which leads to a decline in the physical and mechanical properties of the rubber compound.

[0004] The above-mentioned and existing technologies have the following defects: When vulcanizing nitrile rubber, the rotating wheel will continuously lift different positions of the nitrile rubber. When the nitrile rubber is lifted, it is easy to shift along the direction of the force of the rotating wheel. The shift will cause uneven vulcanization process, thus affecting the physical properties of the nitrile rubber after vulcanization.

[0005] Therefore, a segmented vulcanization device for nitrile rubber is proposed. Utility Model Content

[0006] The purpose of this invention is to solve the problem that nitrile rubber is prone to displacement along the direction of force of the rotating wheel when it is lifted, and to propose a segmented vulcanization device for nitrile rubber.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a segmented vulcanization device for nitrile rubber, comprising a vulcanization outer box, a door installed on the surface of the vulcanization outer box, several placement racks installed on the inner wall of the vulcanization outer box, rotating wheels installed on the surface of the placement racks, and a shielding structure provided on the surface of the placement racks. The shielding structure includes two rectangular boxes, both of which are fixedly connected to the surface of the placement racks. A bidirectional screw is rotatably connected to the inner wall of the rectangular boxes, and two driving blocks are threadedly connected to the surface of the bidirectional screw. An adjusting arm is rotatably connected to the surface of the driving block, and an adjusting block is rotatably connected to the end of the two adjusting arms away from the driving block. A baffle is fixedly connected to the surface of the adjusting block.

[0008] The effect achieved by the above components is as follows: by setting up a shielding structure, the position of the baffle can be adjusted, thereby shielding the movement range of the nitrile rubber and preventing the nitrile rubber from shifting due to being lifted during the vulcanization process, thus ensuring the vulcanization effect of the nitrile rubber.

[0009] Preferably, the surface of the baffle has a plurality of rectangular holes.

[0010] The effect achieved by the above components is that the rectangular holes on the surface of the baffle prevent the baffle from blocking the flow of hot air, ensuring the flow of hot air as much as possible, and further ensuring the effect of vulcanization.

[0011] Preferably, one end of the bidirectional screw is fixedly connected to a turntable, and the vertical cross-section of the turntable is in the shape of a cross.

[0012] The effect achieved by the above components is that the rotation of the turntable will drive the bidirectional screw to rotate, and the turntable facilitates the rotation of the bidirectional screw.

[0013] Preferably, a rectangular rod slides through the surfaces of the two drive blocks, and both ends of the rectangular rod are fixedly connected to the inner wall of the rectangular box.

[0014] The effect achieved by the above components is that the adjusting block slides along the surface of the rectangular rod when it moves, and the rectangular rod restricts the movement path of the adjusting block, thereby preventing the adjusting block from rotating when it moves.

[0015] Preferably, the surface of the vulcanizing outer box is provided with a limiting structure, the limiting structure including a round rod, the round rod being fixedly connected to the surface of the vulcanizing outer box, the arc surface of the round rod being slidably connected to a limiting arm, the arc surface of the round rod being fitted with a spring, the two ends of the spring being fixedly connected to the round rod and the limiting arm respectively, and the surface of the limiting arm being fixedly connected with a locking block, the size of the locking block being adapted to the size of the box door.

[0016] The effect achieved by the above components is that by setting a limiting structure, it is easy to limit the opening of the box door, thereby preventing the box door from closing due to accidental contact, thus improving the practicality of the vulcanizing equipment.

[0017] Preferably, an extension plate is fixedly connected to the surface of the card block, and the extension plate is flush with one side of the inner wall of the card block.

[0018] The effect achieved by the above components is that when the door is rotated to a suitable angle, the door will fit against the surface of the extension plate, and the extension plate will limit the opening angle of the door, thereby preventing the door from being opened excessively.

[0019] Preferably, a protective pad is fixedly connected to the inner wall of the card block, and the protective pad is made of rubber.

[0020] The effect achieved by the above components is that the locking block will cause the protective pad to impact the surface of the door, and the protective pad will prevent the locking block from directly impacting the surface of the door, thus preventing damage to the door and the locking block.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In this utility model, by setting a shielding structure, when nitrile rubber needs to be vulcanized, the nitrile rubber on the placement rack will be continuously lifted by the rotating wheel. At this time, in order to prevent the position of the nitrile rubber from shifting, the double-headed screw is first rotated. The double-headed screw will rotate inside the rectangular box. The rotation of the double-headed screw will drive the two adjusting blocks to move closer to each other through the thread. When the adjusting blocks move, they will drive the adjusting arms to move. When the two adjusting arms move, they will drive the adjusting blocks to move. At this time, the adjusting arms will rotate inside the driving block and the adjusting blocks. When the adjusting blocks move, they will drive the baffle to move away from the rectangular box. When the baffle moves to the appropriate position, the nitrile rubber is vulcanized. The baffle will restrict the displacement of the nitrile rubber, thereby avoiding the situation where the displacement causes uneven vulcanization.

[0023] 2. In this utility model, by setting a limiting structure, the door can be opened and rotated on the surface of the vulcanizing outer box. When the door rotates to a suitable angle, the locking block is released, and the limiting arm will use the force of the spring extension to drive the locking block to move closer to the door. When the locking block moves to a suitable position, it will slide along the surface of the door until the locking block drives the protective pad to impact the surface of the door. The protective pad prevents the locking block from directly impacting the surface of the door, thus preventing damage to the door and the locking block. At this time, the locking block restricts the position of the door, thereby preventing the door from closing due to accidental contact. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the placement rack of this utility model;

[0026] Figure 3 This is a schematic diagram of the shielding structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the baffle in this utility model;

[0028] Figure 5 This is a schematic diagram of the limiting structure of this utility model.

[0029] Legend: 1. Vulcanizing outer box; 2. Box door; 3. Placement rack; 4. Rotating wheel; 5. Shielding structure; 51. Rectangular box; 52. Bidirectional screw; 53. Drive block; 54. Adjusting arm; 55. Adjusting block; 56. Baffle; 57. Rectangular hole; 58. Turntable; 59. Rectangular rod; 6. Limiting structure; 61. Round rod; 62. Limiting arm; 63. Spring; 64. Locking block; 65. Extension plate; 67. Protective pad. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0032] like Figure 1 - Figure 2 As shown, this utility model provides a segmented vulcanization equipment for nitrile rubber, including a vulcanization outer box 1. A door 2 is installed on the surface of the vulcanization outer box 1. Several placement racks 3 are installed on the inner wall of the vulcanization outer box 1. Rotating wheels 4 are installed on the surface of the placement racks 3. A shielding structure 5 is provided on the surface of the placement racks 3. By setting the shielding structure 5, the position of the baffle 56 can be adjusted, thereby blocking the movement range of the nitrile rubber and preventing it from shifting due to being lifted during vulcanization, thus ensuring the vulcanization effect of the nitrile rubber. A limiting structure 6 is provided on the surface of the vulcanization outer box 1. By setting the limiting structure 6, the opening door 2 can be limited, thereby preventing the door 2 from closing due to accidental contact, thus improving the practicality of the vulcanization equipment.

[0033] The following section will explain the specific design and function of its shielding structure 5 and limiting structure 6.

[0034] like Figure 3 and Figure 4 As shown, the shielding structure 5 includes two rectangular boxes 51, both of which are fixedly connected to the surface of the placement rack 3. A bidirectional screw 52 is rotatably connected to the inner wall of each rectangular box 51. Two drive blocks 53 are threadedly connected to the surface of the bidirectional screw 52. Adjusting arms 54 are rotatably connected to the surface of each drive block 53. Adjusting blocks 55 are rotatably connected to the ends of the two adjusting arms 54 furthest from the drive blocks 53. A baffle 56 is fixedly connected to the surface of the adjusting blocks 55. Several rectangular holes 57 are formed on the surface of the baffle 56. These holes prevent the baffle 56 from blocking the flow of hot air, ensuring the flow of hot air as much as possible and further guaranteeing the vulcanization effect. A turntable 58 is fixedly connected to one end of the bidirectional screw 52. The vertical cross-section of the turntable 58 is cross-shaped. Rotation of the turntable 58 drives the bidirectional screw 52 to rotate, thus facilitating the rotation of the bidirectional screw 52. A rectangular rod 59 slides through the surfaces of the two drive blocks 53. Both ends of the rectangular rod 59 are fixedly connected to the inner wall of the rectangular box 51. When the adjusting block 55 moves, it slides along the surface of the rectangular rod 59. The rectangular rod 59 restricts the movement path of the adjusting block 55, thereby preventing the adjusting block 55 from rotating when it moves.

[0035] like Figure 5 As shown, the limiting structure 6 includes a round rod 61, which is fixedly connected to the surface of the vulcanizing outer box 1. A limiting arm 62 is slidably connected to the arc surface of the round rod 61. A spring 63 is sleeved on the arc surface of the round rod 61, and the two ends of the spring 63 are fixedly connected to the round rod 61 and the limiting arm 62, respectively. A locking block 64 is fixedly connected to the surface of the limiting arm 62, and the size of the locking block 64 is adapted to the size of the box door 2. An extension plate 65 is fixedly connected to the surface of the locking block 64, and the extension plate 65 is flush with one side of the inner wall of the locking block 64. When the box door 2 is rotated to a suitable angle, the box door 2 will fit against the surface of the extension plate 65, and the extension plate 65 will limit the opening angle of the box door 2, thereby preventing the box door 2 from being opened excessively. The inner wall of the latch 64 is fixedly connected to a protective pad 67, which is made of rubber. The latch 64 will cause the protective pad 67 to impact the surface of the door 2. The protective pad 67 serves to prevent the latch 64 from directly impacting the surface of the door 2, thus preventing damage to the door 2 and the latch 64.

[0036] The overall working principle is as follows: When nitrile rubber needs to be vulcanized, the nitrile rubber on the placement rack 3 is continuously lifted by the rotating wheel 4. To prevent the position of the nitrile rubber from shifting, the turntable 58 is rotated first. The rotation of the turntable 58 drives the bidirectional screw 52 to rotate. The bidirectional screw 52 rotates within the rectangular box 51. The rotation of the bidirectional screw 52 drives two adjusting blocks 55 to move closer to each other via the thread. When the adjusting blocks 55 move, they slide along the surface of the rectangular rod 59. The rectangular rod 59 restricts the movement path of the adjusting blocks 55, thereby preventing the adjusting blocks 55 from rotating during movement. When 55 moves, it will drive the adjusting arm 54 to move. When the two adjusting arms 54 move, they will drive the adjusting block 55 to move. At this time, the adjusting arm 54 will rotate within the driving block 53 and the adjusting block 55. When the adjusting block 55 moves, it will drive the baffle 56 to move away from the rectangular box 51. When the baffle 56 moves to the appropriate position, the nitrile rubber is vulcanized. The baffle 56 will restrict the displacement of the nitrile rubber, thereby avoiding uneven vulcanization caused by displacement. The rectangular hole 57 opened on the surface of the baffle 56 will prevent the baffle 56 from blocking the flow of hot air, ensuring the flow of hot air as much as possible, and further ensuring the vulcanization effect.

[0037] When it is necessary to limit the opening of the box door 2, first pull the locking block 64. The movement of the locking block 64 will cause the limiting arm 62 to move away from the vulcanizing outer box 1. The movement of the limiting arm 62 will slide on the surface of the round rod 61. The movement of the limiting arm 62 will compress the spring 63. When the locking block 64 moves, it will cause the extension plate 65 to move. When the locking block 64 moves to the appropriate position, the box door 2 will open. The box door 2 will rotate on the surface of the vulcanizing outer box 1. When the box door 2 rotates to the appropriate angle, the box door 2 will fit against the surface of the extension plate 65, and the extension plate 65 will limit the opening of the box door 2. The opening angle is adjusted to prevent the door 2 from opening excessively. Then, the latch 64 is released, and the limiting arm 62 will use the force of the spring 63 to move the latch 64 closer to the door 2. When the latch 64 moves to the appropriate position, the latch 64 will slide along the surface of the door 2 until the latch 64 drives the protective pad 67 to impact the surface of the door 2. The protective pad 67 prevents the latch 64 from directly impacting the surface of the door 2, thus preventing damage to the door 2 and the latch 64. At this time, the latch 64 restricts the position of the door 2, thereby preventing the door 2 from closing due to accidental contact.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A segmented vulcanizing device for nitrile rubber, comprising a vulcanizing outer box (1), wherein a box door (2) is installed on the surface of the vulcanizing outer box (1), a plurality of placement racks (3) are installed on the inner wall of the vulcanizing outer box (1), rotating wheels (4) are installed on the surface of the placement racks (3), and a shielding structure (5) is provided on the surface of the placement racks (3), characterized in that: The shielding structure (5) includes two rectangular boxes (51), both of which are fixedly connected to the surface of the placement rack (3). The inner wall of the rectangular box (51) is rotatably connected to a bidirectional screw (52). The surface of the bidirectional screw (52) is threadedly connected to two driving blocks (53). The surface of the driving blocks (53) is rotatably connected to an adjusting arm (54). The end of the two adjusting arms (54) away from the driving blocks (53) is rotatably connected to an adjusting block (55). The surface of the adjusting block (55) is fixedly connected to a baffle (56).

2. The segmented vulcanization equipment for nitrile rubber according to claim 1, characterized in that: The surface of the baffle (56) is provided with a number of rectangular holes (57).

3. The segmented vulcanization equipment for nitrile rubber according to claim 1, characterized in that: One end of the bidirectional screw (52) is fixedly connected to a turntable (58), and the vertical cross section of the turntable (58) is in the shape of a cross.

4. The segmented vulcanization equipment for nitrile rubber according to claim 1, characterized in that: A rectangular rod (59) slides through the surfaces of the two drive blocks (53), and both ends of the rectangular rod (59) are fixedly connected to the inner wall of the rectangular box (51).

5. The segmented vulcanization equipment for nitrile rubber according to claim 1, characterized in that: The surface of the vulcanizing outer box (1) is provided with a limiting structure (6). The limiting structure (6) includes a round rod (61). The round rod (61) is fixedly connected to the surface of the vulcanizing outer box (1). The arc surface of the round rod (61) is slidably connected to a limiting arm (62). The arc surface of the round rod (61) is fitted with a spring (63). The two ends of the spring (63) are fixedly connected to the round rod (61) and the limiting arm (62) respectively. The surface of the limiting arm (62) is fixedly connected with a locking block (64). The size of the locking block (64) is adapted to the size of the box door (2).

6. The segmented vulcanization equipment for nitrile rubber according to claim 5, characterized in that: An extension plate (65) is fixedly connected to the surface of the card block (64), and the extension plate (65) is flush with one side of the inner wall of the card block (64).

7. The segmented vulcanization equipment for nitrile rubber according to claim 5, characterized in that: The inner wall of the card block (64) is fixedly connected with a protective pad (67), which is made of rubber.

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