A vulcanization treatment device suitable for rubber sealing rings

By designing an automatic demolding mechanism and a material receiving mechanism, the problem of difficult peeling of rubber sealing rings after vulcanization was solved, realizing automatic demolding and receiving, and improving production efficiency.

CN117944206BActive Publication Date: 2026-06-26CHANGZHOU RONGNAN RUBBER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGZHOU RONGNAN RUBBER TECH CO LTD
Filing Date
2023-12-20
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The vulcanized rubber seal ring is difficult to peel off from the mold surface, resulting in demolding difficulties and affecting production efficiency.

Method used

An automatic demolding mechanism was designed, including a lower support component and an upper pressure component. Automatic demolding is achieved by clamping the top edge of the rubber sealing ring and moving it upward. Combined with an automatic unloading component and a receiving mechanism, the automatic demolding and receiving of the rubber sealing ring is realized.

Benefits of technology

Automatic demolding of the vulcanized rubber sealing rings was achieved, improving demolding efficiency. The automatic receiving mechanism also enabled the automatic picking up of the rubber sealing rings, solving the problem of difficulty in peeling them off after vulcanization.

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Abstract

The present disclosure relates to the technical field of vulcanization treatment devices, and particularly relates to a vulcanization treatment device suitable for rubber sealing rings. The technical scheme of the present disclosure comprises a vulcanization upper mold and a vulcanization lower mold, and an automatic demolding mechanism is arranged at each mold core for simultaneously stripping each rubber sealing ring from the mold core. The automatic demolding mechanism comprises a lower supporting assembly arranged at the top end of the mold core and supporting below the top edge of the rubber sealing ring. The lower supporting assembly is moved upward to support the rubber sealing ring and then the rubber sealing ring is demolded. The lower supporting assembly comprises a connecting plate horizontally arranged at the top end of the mold core and lower supporting legs connected to the lower surfaces at both ends of the connecting plate. The lower supporting legs support below the top edge of the rubber sealing ring. The automatic demolding mechanism can automatically demold the vulcanized rubber sealing ring, which not only solves the problem that the vulcanized rubber sealing ring is not easy to strip and demold, but also greatly improves the demolding efficiency.
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Description

Technical Field

[0001] This disclosure relates to the field of vulcanization equipment technology, and more particularly to a vulcanization equipment suitable for use with rubber seals. Background Technology

[0002] A vulcanization device is a device that vulcanizes rubber under certain temperature and pressure conditions. After vulcanization, the rubber will have significant improvements in terms of wear resistance, swelling resistance, and heat resistance.

[0003] When vulcanizing rubber seals using a vulcanization treatment device, the seal needs to be placed in a mold and then high-temperature, high-pressure gas is introduced. After vulcanization, the seal adheres tightly to the mold surface and is not easily peeled off. Therefore, this disclosure proposes a vulcanization treatment device suitable for use with rubber seals. Summary of the Invention

[0004] The purpose of this disclosure is to address the problems existing in the prior art by providing a vulcanization treatment device suitable for use with rubber sealing rings.

[0005] The technical solution disclosed herein is a vulcanization treatment device suitable for use with rubber sealing rings, comprising an upper vulcanization mold and a lower vulcanization mold. The upper surface of the lower vulcanization mold is provided with a plurality of mold cores, including an automatic demolding mechanism. The automatic demolding mechanism is provided at each mold core and is used to simultaneously peel each rubber sealing ring from the mold core.

[0006] Optionally, the automatic demolding mechanism includes a lower support assembly, which is located at the top of the mold core and supports the rubber sealing ring below the top edge. The rubber sealing ring is lifted and demolded by the upward movement of the lower support assembly.

[0007] Optionally, the lower support assembly includes a connecting plate horizontally placed at the top of the mold core and lower support feet connected to the lower surfaces of both ends of the connecting plate, wherein the lower support feet support the top edge of the rubber sealing ring.

[0008] Optionally, the automatic demolding mechanism includes an upper pressing component installed at the bottom of the vulcanizing upper mold. The upper pressing component is used to press down on the top edge of the rubber sealing ring, and together with the lower supporting component supporting the bottom edge of the rubber sealing ring, clamps the rubber sealing ring and moves it upward to demold.

[0009] Optionally, the upper pressure assembly includes an upper pressure foot that presses against the top edge of the rubber sealing ring and a connecting rod fixed to the top of the upper pressure foot.

[0010] Optionally, the automatic demolding mechanism includes an automatic disconnection assembly installed on the vulcanizing upper mold. The automatic disconnection assembly is used to connect the lower support assembly, the upper pressure assembly, and the vulcanizing upper mold into a whole for vertical movement.

[0011] Optionally, the automatic disconnection assembly includes a pair of elastically closing locking arms and a wedge-shaped pusher that pushes the two locking arms apart. The automatic disconnection assembly also includes a card box fixed to the upper surface of the connecting plate, which can engage with the locking arms after they have separated.

[0012] Optionally, a first guide shaft is connected in series between the two clamping arms. The end of the first guide shaft is connected to the inner wall of the vulcanizing upper mold. A tension spring is sleeved on the outer wall of the first guide shaft and located between the two clamping arms to drive the two clamping arms to close and reset.

[0013] Optionally, the automatic demolding mechanism further includes an automatic stripping component for automatically removing the rubber sealing ring from the vulcanizing upper mold after demolding from the lower mold. The automatic stripping component includes a wedge-shaped slider fixedly connected to the top of the lower support foot and a vertical push column elastically connected to the vulcanizing upper mold. Both the wedge-shaped slider and the lower support foot are horizontally slidably connected to the connecting plate. When the vertical push column moves downward, it pushes the wedge-shaped slider to move horizontally, causing the lower support foot to detach from below the top edge of the rubber sealing ring.

[0014] Optionally, it also includes an automatic receiving mechanism for receiving rubber sealing rings. The automatic receiving mechanism includes a first rack fixedly connected to the vulcanizing upper mold, a gear set rotatably mounted on an external fixing member and capable of meshing with the first rack, a receiving plate horizontally slidably connected to the external fixing member, and a second rack fixed to the receiving plate and capable of meshing with the gear set. The receiving plate has a slot for the first rack to pass through.

[0015] Compared with the prior art, this disclosure has the following beneficial technical effects:

[0016] This application, through the design of an automatic demolding mechanism, enables the vulcanized rubber sealing ring to be automatically demolded, which not only solves the problem of difficulty in peeling and demolding after vulcanization, but also greatly improves the demolding efficiency.

[0017] Furthermore, through the design of the automatic receiving mechanism, it can be combined with the automatic demolding mechanism to automatically pick up the rubber sealing ring after demolding;

[0018] In summary, the automatic demolding mechanism enables the automatic demolding of rubber seals through the coordinated operation of its various components. Furthermore, the automatic demolding mechanism simultaneously drives the automatic receiving mechanism to automatically pick up the rubber seals. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a vulcanization treatment device suitable for use with rubber seals;

[0020] Figure 2 for Figure 1 A sectional view;

[0021] Figure 3 for Figure 2 A schematic diagram of the split structure;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure at point A;

[0023] Figure 5 This is a connection diagram of the lower support component, the upper pressure component, and the automatic disconnection component.

[0024] Figure 6 This is a schematic diagram showing the connection between the pressure-up component and the automatic disconnection component;

[0025] Figure 7 This is a schematic diagram showing the connection between the automatic unloading assembly and the lower support assembly;

[0026] Figure 8 This is a schematic diagram of the automatic unloading assembly;

[0027] Figure 9 This is a schematic diagram of the automatic material receiving mechanism when the upper vulcanizing mold and the lower vulcanizing mold separate.

[0028] Attached label: 1. Vulcanizing upper mold;

[0029] 2. Vulcanizing lower mold; 21. Mold core;

[0030] a. Automatic demolding mechanism

[0031] 3. Rubber sealing ring;

[0032] 4. Lower support assembly; 41. Connecting plate; 42. Lower support foot;

[0033] 5. Upper pressure assembly; 51. Upper pressure foot; 52. Connecting rod;

[0034] 6. Automatic disconnection assembly; 61. Locking arm; 62. Locking box; 63. Wedge-shaped push block; 631. Connecting post; 64. First guide shaft; 65. Tension spring;

[0035] 7. Automatic unloading assembly; 71. Wedge slider; 72. Vertical push column; 73. Second guide shaft; 74. Spring; 75. Return spring;

[0036] 8. Assembly panels;

[0037] 9. Automatic receiving mechanism; 91. First rack; 92. Gear set; 93. Receiving plate; 931. Slotting; 94. Second rack. Detailed Implementation

[0038] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0039] In the description of this disclosure, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0041] Example 1

[0042] This disclosure discloses a vulcanization treatment device suitable for rubber sealing rings, comprising a vulcanizing upper mold 1 and a vulcanizing lower mold 2 as in the prior art. The vulcanizing upper mold 1 is connected to the stamping head of a stamping device, and the vulcanizing lower mold 2 can be fixedly placed on a platform or installed on the platform via a horizontal sliding assembly; both are common installation methods and will not be described in detail here. The upper surface of the vulcanizing lower mold 2 is provided with several mold cores 21, the shape of which conforms to the rubber sealing ring 3. When high-temperature, high-pressure gas is injected into the vulcanizing upper mold 1 and the vulcanizing lower mold 2, the rubber sealing ring 3 will adhere to the mold cores 21 after vulcanization. The vulcanizing upper mold 1 and the vulcanizing lower mold 2 also have guide pillars, air holes, and other structures, which are all prior art and will not be described in detail here.

[0043] In this embodiment, as Figure 1-7 As shown, the vulcanization treatment device includes an automatic demolding mechanism a, which is located at each mold core 21 and is used to simultaneously peel each rubber sealing ring 3 from the mold core 21. The automatic demolding mechanism a includes an upper pressure assembly 5, an automatic disconnection assembly 6, an automatic material removal assembly 7, and an assembly plate 8.

[0044] The automatic demolding mechanism a includes a lower support assembly 4, which is located at the top of the mold core 21 and supports the rubber sealing ring 3 below its top edge. The rubber sealing ring 3 is demolded by the upward movement of the lower support assembly 4. The lower support assembly 4 includes a connecting plate 41 horizontally placed at the top of the mold core 21 and L-shaped lower support feet 42 slidably connected to the lower surfaces of both ends of the connecting plate 41. The lower support feet 42 support the rubber sealing ring 3 below its top edge.

[0045] The automatic demolding mechanism a includes an upper pressure assembly 5 installed at the bottom of the vulcanizing upper mold 1. The upper pressure assembly 5 includes an upper pressure foot 51 that presses against the top edge of the rubber sealing ring 3 and a connecting rod 52 fixed to the top of the upper pressure foot 51. The upper pressure foot 51 is coaxial with the mold core 21. The upper pressure assembly 5 is used to press against the top edge of the rubber sealing ring 3, and together with the lower support assembly 4 supporting the bottom edge of the rubber sealing ring 3, it forms a clamping effect on the top edge of the rubber sealing ring 3, thereby causing the rubber sealing ring 3 to disengage from the mold core 21 when the vulcanizing upper mold 1 moves upward.

[0046] The automatic demolding mechanism a includes an automatic disconnection assembly 6 installed on the vulcanizing upper mold 1. The automatic disconnection assembly 6 is used to connect the lower support assembly 4, the upper pressure assembly 5, and the vulcanizing upper mold 1 into a whole for vertical movement. The automatic disconnection assembly 6 includes a pair of elastically closing locking arms 61 and a wedge-shaped push block 63 that pushes the two locking arms 61 apart. The automatic disconnection assembly 6 also includes a card box 62 fixed to the upper surface of the connecting plate 41. The card box 62 has a pair of rectangular locking holes. The bottom ends of the two locking arms 61 are fixedly connected to rectangular locking blocks. When the two locking arms 61 are separated from each other, the rectangular locking blocks can be locked into the rectangular locking holes to connect the lower support assembly 4 and the automatic disconnection assembly 6. A first guide shaft 64 is connected in series between the two clamping arms 61. Both ends of the first guide shaft 64 are connected to the inner wall of the vulcanizing upper mold 1. A tension spring 65 is movably sleeved on the outer wall of the first guide shaft 64 and located between the two clamping arms 61. Both ends of the tension spring 65 are fixedly connected to the two clamping arms 61 respectively. The two clamping arms 61 are driven to close and reset by elastic contraction.

[0047] like Figure 8The automatic demolding mechanism a further includes an automatic stripping assembly 7 for automatically removing the rubber sealing ring 3 from the vulcanizing upper mold 1 after demolding from the lower mold 2. The automatic stripping assembly 7 includes a wedge-shaped slider 71 fixedly connected to the top of the lower support foot 42 and a vertical push column 72 elastically connected to the vulcanizing upper mold 1. Both the wedge-shaped slider 71 and the lower support foot 42 are horizontally slidably connected to the connecting plate 41. The connecting plate 41 has a slot for the wedge-shaped slider 71 to slide horizontally. A second guide shaft 73 is fixedly connected to the inner wall of the slot. The second guide shaft 73 movably passes through the wedge-shaped slider 71, and a spring 74 is sleeved on the second guide shaft 73 for elastically pushing the wedge-shaped slider 71. Above the vertical push column 72, a structural component, such as a horizontal plate, is provided that can simultaneously contact the top of the vertical push column 72 in its upward-moving state. This structural component can be fixed to the housing of the vulcanizing device and is not shown in the figure. Furthermore, a return spring 75 is fitted at the bottom of the vertical push column 72. One end of the return spring 75 is connected to the inner wall of the vulcanizing upper mold 1, and the other end is connected to the vertical push column 72, which is used to drive the vertical push column 72 to move upward and reset after it has moved downward. When the vertical push column 72 moves upward with the vulcanizing upper mold 1, the top end of the vertical push column 72 contacts the structural component and is pushed downward in the opposite direction, thereby pushing the wedge slider 71 to move horizontally, so that the lower support foot 42 disengages from below the top edge of the rubber sealing ring 3, thus completing the separation of the rubber sealing ring 3 from the vulcanizing upper mold 1.

[0048] The upper surface of the vulcanizing upper mold 1 is provided with an assembly plate 8, which is fixedly connected to each connecting column 631. A structure that can drive the assembly plate 8 to move vertically can be provided on the upper surface of the vulcanizing upper mold 1. This structure can be a manually operated screw lifting assembly or a cylinder or other equipment that can realize automatic lifting function.

[0049] The working principle of this embodiment is as follows: through the design of the automatic demolding mechanism a, the vulcanized rubber sealing ring 3 can be automatically demolded, which not only solves the problem of not being easy to peel off and demold after vulcanization, but also greatly improves the demolding efficiency.

[0050] Specifically, the rubber sealing ring 3 to be vulcanized is placed into each mold core 21 of the vulcanizing upper mold 1. After mold closing and vulcanization, the rubber sealing ring 3 is attached to the mold core 21. Subsequently, the assembly plate 8 moves downward under the manual operation or automatic control described above, causing each connecting post 631 to move downward. The wedge-shaped push block 63 at the bottom of the connecting post 631 moves downward to push the two clamping arms 61 to separate from each other, thereby engaging with the clamping box 62, so that the automatic disconnection assembly 6 and the lower support assembly 4 are connected as a whole. At the same time, the connecting post 631 drives the upper pressure foot 51 to move downward through the connecting rod 52. The upper pressure foot 51 presses on the top edge of the rubber sealing ring 3, forming a clamping action with the lower support foot 42 located below the top edge of the rubber sealing ring 3. Subsequently, when the vulcanizing upper mold 1 moves upward to open the mold, it will drive the lower support assembly 4, the upper pressure assembly 5, and the automatic disconnection assembly 6 to move upward together, thereby clamping the rubber sealing ring 3 and pulling it upward to peel it off from the mold core 21. As the vulcanizing upper mold 1 continues to move upward, the fixed structural component (see the description above) located above the vertical push column 72 contacts the top of the vertical push column 72, thereby pushing the vertical push column 72 downward in the opposite direction. The bottom end of the vertical push column 72 pushes the wedge-shaped slider 71 to move horizontally, causing the lower support foot 42 to disengage from below the top edge of the rubber sealing ring 3. The lower support assembly 4 and the upper pressure assembly 5 can no longer clamp the rubber sealing ring 3, and the rubber sealing ring 3 will fall off freely.

[0051] When performing the next round of vulcanization, the vulcanizing upper mold 1 needs to be moved down once first, so that the lower support assembly 4 can be placed back on the mold core 21. Then the assembly plate 8 moves up and resets, and the two clamping arms 61 close together to separate from the clamping box 62. The lower support assembly 4 and the automatic disconnection assembly 6 are no longer a whole. After the vulcanizing upper mold 1 moves up and resets, the lower support assembly 4 can be left on the mold core 21 to wait for the next round of vulcanization.

[0052] Example 2

[0053] Based on Example 1, such as Figure 1 , Figure 9 As shown, the present disclosure discloses a vulcanization treatment device suitable for rubber sealing rings, which further includes an automatic receiving mechanism 9 for receiving the rubber sealing rings. The automatic receiving mechanism 9 includes a first rack 91, a gear set 92, a receiving plate 93, and a second rack 94. The first rack 91 is fixedly connected to the vulcanization upper mold 1. The gear set 92 consists of two gears coaxially fixedly connected and rotatably connected to external fixed parts such as the housing of the vulcanization treatment device through a rotating shaft. One gear of the gear set 92 meshes with the first rack 91. The receiving plate 93 can be horizontally slidably connected to the external fixed parts such as the housing of the vulcanization treatment device through existing connection structures such as sliders and grooves. The second rack 94 fixedly connected to the receiving plate 93 meshes with the other gear of the gear set 92. Furthermore, the receiving plate 93 has a slot 931 for the first rack 91 to pass through.

[0054] In this embodiment, the automatic receiving mechanism 9 can automatically receive the sealing rubber ring when it falls off the mold as described in Embodiment 1.

[0055] Specifically, when the vulcanizing upper mold 1 moves upward as described in Example 1, it drives the first rack 91 to move upward as well. The first rack 91 rotates through meshing with the gear set 92. The gear set 92 moves the receiving plate 93 horizontally through meshing with the second rack 94. When it moves to the position between the vulcanizing upper mold 1 and the vulcanizing lower mold 2, it can catch the fallen sealing rubber ring. In the above process, the translation speed of the receiving plate 93 can be set by setting the two gears of the gear set 92 to different numbers of gears, so as to ensure that it reaches the position between the vulcanizing upper mold 1 and the vulcanizing lower mold 2 after the vulcanizing upper mold 1 moves upward a certain distance.

[0056] The above specific embodiments are merely several optional embodiments of this disclosure. Based on the technical solutions of this disclosure and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A vulcanization treatment apparatus suitable for use with rubber sealing rings, comprising an upper vulcanization mold (1) and a lower vulcanization mold (2), wherein the upper surface of the lower vulcanization mold (2) is provided with a plurality of mold cores (21), characterized in that: Includes an automatic demolding mechanism (a), which is disposed at each mold core (21) for simultaneously peeling each rubber sealing ring (3) from the mold core (21); The automatic demolding mechanism (a) includes a lower support assembly (4), which is located at the top of the mold core (21) and supports the rubber sealing ring (3) below the top edge. The rubber sealing ring (3) is demolded by the upward movement of the lower support assembly (4). The lower support assembly (4) includes a connecting plate (41) horizontally placed at the top of the mold core (21) and lower support feet (42) connected to the lower surfaces of both ends of the connecting plate (41). The lower support feet (42) rest below the top edge of the rubber sealing ring (3). The automatic demolding mechanism (a) includes an upper pressure component (5) installed at the bottom of the vulcanizing upper mold (1). The upper pressure component (5) is used to press the top edge of the rubber sealing ring (3) and, together with the lower support component (4), supports the bottom edge of the rubber sealing ring (3), clamping the rubber sealing ring (3) and moving it upward to demold. The upper pressure assembly (5) includes an upper pressure foot (51) pressing down on the top edge of the rubber sealing ring (3) and a connecting rod (52) fixed to the top of the upper pressure foot (51).

2. The vulcanization treatment device for rubber sealing rings according to claim 1, characterized in that, The automatic demolding mechanism (a) includes an automatic disconnection assembly (6) installed on the vulcanizing upper mold (1). The automatic disconnection assembly (6) is used to connect the lower support assembly (4), the upper pressure assembly (5) and the vulcanizing upper mold (1) into a whole and move vertically.

3. A vulcanization treatment device suitable for use with rubber sealing rings according to claim 2, characterized in that, The automatic disconnection assembly (6) includes a pair of elastically closing locking arms (61) and a wedge-shaped pusher (63) that pushes the two locking arms (61) apart. The automatic disconnection assembly (6) also includes a card box (62) fixed to the upper surface of the connecting plate (41). The card box (62) can engage with the locking arms (61) after they are separated.

4. A vulcanization treatment device suitable for use with rubber sealing rings according to claim 3, characterized in that, A first guide shaft (64) is connected in series between the two clamping arms (61). The end of the first guide shaft (64) is connected to the inner wall of the vulcanizing upper mold (1). A tension spring (65) is sleeved on the outer wall of the first guide shaft (64) and located between the two clamping arms (61) to drive the two clamping arms (61) to close and reset.

5. A vulcanization treatment device suitable for use with rubber sealing rings according to claim 4, characterized in that, The automatic demolding mechanism (a) further includes an automatic stripping component (7) for automatically removing the rubber sealing ring (3) after demolding from the lower vulcanizing mold (2) from the upper vulcanizing mold (1). The automatic stripping component (7) includes a wedge-shaped slider (71) fixedly connected to the top of the lower support foot (42) and a vertical push column (72) elastically connected to the upper vulcanizing mold (1). The wedge-shaped slider (71) and the lower support foot (42) are both horizontally slidably connected to the connecting plate (41). When the vertical push column (72) moves down, it pushes the wedge-shaped slider (71) to move horizontally, so that the lower support foot (42) disengages from below the top edge of the rubber sealing ring (3).

6. A vulcanization treatment apparatus for use with rubber sealing rings according to claim 5, characterized in that, It also includes an automatic receiving mechanism (9) for receiving rubber sealing rings. The automatic receiving mechanism (9) includes a first rack (91) fixedly connected to the vulcanizing upper mold (1), a gear set (92) rotatably mounted on the external fixing member and capable of meshing with the first rack (91), a receiving plate (93) slidably connected to the external fixing member in the horizontal direction, and a second rack (94) fixed to the receiving plate (93) and capable of meshing with the gear set (92). The receiving plate (93) is provided with a slot (931) for the first rack (91) to pass through.