Rubber sealing ring vulcanization forming device and vulcanization process

Abstract

The rubber sealing ring vulcanization forming device structurally comprises a fixed mold, a movable mold and a feeding set, the movable mold is located above the fixed mold, and the feeding set is located on the side of the fixed mold; the movable die comprises a connecting end, an upper die, a support and a telescopic rod, the connecting end is installed on the outer surface of the support, and the telescopic rod penetrates through the support to be installed on the upper surface of the upper die. The upper die comprises a rotating shaft, a heating die, a convex block, an extension block, a spring, a middle die, a rolling adhesion body and a connecting rod, the rotating shaft is used for fixing a swinging point of the connecting rod, the connecting rod is splayed when moving and is splayed when static, so that the connecting rod is convenient to unfold when moving, and when the telescopic rod is pressed downwards, the rolling adhesion body can unfold to roll and adhere impurities to the upper surfaces of the middle die and the glue placing block; according to the utility model, flying dust blown by the air blowing device is adhered by the rolling and adhering body, and after adhesion is finished, the heating mold moves to the middle mold to be matched with the upper part of the glue placing block, so that impurities cannot be positioned in the mold body and are vulcanized together with the glue.

Description

Technical Field

[0001] This invention belongs to the field of rubber molding, and more specifically, it relates to a rubber sealing ring vulcanization molding device and vulcanization process. Background Technology

[0002] Rubber sealing ring vulcanization molding is a key equipment used to transform unvulcanized rubber materials into sealing rings with elasticity, heat resistance and mechanical strength through heating, pressurization and chemical reaction. Vulcanization is the core process of rubber processing.

[0003] During the demolding process of vulcanized rubber products by the air blowing device, the impact of high-pressure gas causes dust to be generated in the work area while the products are automatically removed from the mold. This agitated suspended dust will settle on the surface of the mold cavity during the equipment standby phase and before the start of the next production cycle. When a new rubber strip is placed, the residual dust will adhere to the rubber at the interface, resulting in interface contamination during the subsequent vulcanization process, which ultimately affects the vulcanization quality and surface properties of the product. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention provides a rubber sealing ring vulcanization molding device and vulcanization process. The objectives and effects of these methods are achieved through the following specific technical means: Its structure includes a fixed mold, a movable mold, and a feeding group. The movable mold is located above the fixed mold, and the feeding group is located to the side of the fixed mold. The movable mold includes a connecting end, an upper mold, a bracket, and a telescopic rod. The connecting end is installed on the outer surface of the bracket, and the telescopic rod passes through the bracket and is installed on the upper surface of the upper mold. The upper mold includes a rotary shaft, a heating mold, a protrusion, an extension block, a spring, a middle mold, a rolling body, and a connecting rod. The rotary shaft fixes the swing point of the connecting rod. The protrusion and the heating mold are an integral structure. The connecting rod connects the rotary shaft and the rolling body. The extension block and the middle mold are an integral structure. The spring is installed on the lower surface of the extension block. The roller will roll along the upper surface of the extension block and spread out to both sides. When the roller rolls to the farthest distance, the telescopic rod continues to press down, which will drive the heating mold and the middle mold to merge. When the rotating shaft is subjected to force and the connecting rod rotates, it will maintain a rotating force. The protrusion corresponds to the groove of the middle mold. Impurities can adhere to the surface of the roller, which can be removed by rinsing with clean water. When the connecting rod moves, it spreads out in a figure-eight shape, and when it is stationary, it spreads out in a small figure-eight shape for easy movement.

[0005] As a further improvement of the present invention, the heating mold has a rapid heating module, which enables the colloid to be vulcanized and molded smoothly. The distance extended by the extension block is the distance that the roll-on body can roll. The continuous downward pressure of the telescopic rod can make the middle mold move down first and then push the heating mold. There are four springs symmetrically distributed at the bottom of the extension block.

[0006] As a further improvement of the present invention, the fixed mold includes a base, a rubber block, and a stop block. The base is fixed to the bottom of the stop block. The rubber block and the stop block are an integrated structure. The spring is supported between the extension block and the stop block. The gap space of the rubber block and the middle mold complement each other and become an integral part. The groove after their combination is circular. The circular groove of the rubber block and the middle mold is combined with the protrusion and corresponds to each other. The gap between the circular groove and the protrusion is the shape of the sealing ring that the rubber strip can form. The gap formed by the heating mold, the protrusion, the middle mold, and the rubber block is the shape of the sealing ring.

[0007] As a further improvement of the present invention, the feeding group includes a clamping body, a feeding belt, and a material preparation box. The clamping body is connected to and movable with the material preparation box. The feeding belt and the material preparation box are an integrated structure. The clamping body is located above the adhesive block. The material preparation box cuts and weighs the adhesive strips to the required size and weight.

[0008] As a further improvement of the present invention, the clamping body includes a crossbar, a main guide rail, a support rod, a fine-tuning rod, and a clamping rod. The clamping rod is assembled below the crossbar and is movable. Fine-tuning rods are installed on the left and right sides of the crossbar. The support rod is installed between the fine-tuning rod and the main guide rail. Each clamping rod has a U-shaped structure and can move from the center point to the left and right sides.

[0009] As a further improvement of the present invention, the clamping rod is used to clamp the adhesive strip and position it above the adhesive block for positioning and movement. There are three sets of clamping rods arranged on the same horizontal line, which can clamp three adhesive strips at the same time. The main moving track is used for large-range movement. When the clamping rod is above the adhesive block, the positioning is finely adjusted by the fine-adjusting rod.

[0010] As a further improvement of the present invention, the vulcanization process steps of the rubber sealing ring vulcanization molding apparatus are as follows: Step 1: The required adhesive strips are conveyed to the preparation box via the feeding belt for adjustment and cutting. After the adhesive strips are prepared in the preparation box, the clamping rod is moved along the main conveyor track to the preparation box. The clamping rod moves along the crossbar to pick up the adhesive strip and delivers it to the top of the adhesive block. After that, the clamping body returns to its original position, ready for the next conveying. Step 2: The control device connects to the telescopic rod via the connecting end to move it down, activating the heating module of the heating mold. As the telescopic rod moves down, the rolling body, supported by the connecting rod, presses down the middle mold to squeeze the spring. After the middle mold and the groove of the adhesive block are matched and merged, the rolling body continues to bear the force of the telescopic rod moving down, and will roll along the surface of the middle mold and the extension block to adhere impurities. Its connecting rod will gradually unfold, allowing the heating mold to merge with the middle mold and the adhesive block. Step 3: As the heating mold continues to move downward, the rubber strip will be heated simultaneously, causing it to gradually fill the gap between the protrusion and the middle mold and the rubber block, thereby forming the required sealing ring. After molding is complete, the telescopic rod is moved upward and all parts are put back in place. Step 4: The formed rubber strips are blown off the equipment using an air blowing device, ready for the next batch of rubber strips to be processed.

[0011] The bump has nine protrusions, which can be used to form nine sealing rings at a time.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Firstly, as the telescopic rod is pressed down, its roller will extend and roll to adhere impurities to the upper surface of the central mold and the rubber block. This allows the dust blown up by the air blowing device to be adhered by the roller. After the adhesion is completed, the heating mold will move to the top of the central mold and the rubber block to cooperate, ensuring that the impurities are not inside the mold and vulcanized together with the rubber.

[0013] Secondly, during the continuous heating and pressing process of the heating mold, the colloid it comes into contact with will gradually heat up and fill the space of the mold, avoiding uneven molding effects such as air holes caused by excessively fast heating.

[0014] Third, the cut and adjusted colloid is wrapped on three sides and transported to prevent impurities blown up by the air blowing device from adhering to the colloid strip and being vulcanized together with the colloid strip, thus affecting the quality of the colloid strip. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a rubber sealing ring vulcanization molding device according to the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the moving module of the present invention.

[0017] Figure 3 This is a schematic diagram of the upper mold of the present invention.

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed mold of the present invention.

[0019] Figure 5 This is a bottom view of the upper mold structure of the present invention.

[0020] Figure 6 This is a schematic diagram of the feeding assembly of the present invention.

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the clamping body of the present invention.

[0022] Figure 8 This invention relates to the vulcanization molding process for rubber sealing rings.

[0023] In the diagram: Fixed mold-1, Moving mold-2, Feeding assembly-3, Connecting end-21, Upper mold-22, Support-23, Telescopic rod-24, Rotating shaft-31, Heating mold-32, Protrusion-33, Extension block-34, Spring-35, Middle mold-36, Roller adhesive body-37, Connecting rod-38, Base-11, Adhesive block-12, Stop block-13, Clamping body-51, Feeding belt-52, Material preparation box-53, Crossbar-61, Main conveyor-62, Support rod-63, Fine adjustment rod-64, Clamping rod-65. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings: Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown: This invention provides a rubber sealing ring vulcanization molding device and vulcanization process, the structure of which includes a fixed mold 1, a movable mold 2, and a feeding group 3. The movable mold 2 is located above the fixed mold 1, and the feeding group 3 is located to the side of the fixed mold 1. The movable mold 2 includes a connecting end 21, an upper mold 22, a bracket 23, and a telescopic rod 24. The connecting end 21 is installed on the outer surface of the bracket 23, and the telescopic rod 24 passes through the bracket 23 and is installed on the upper surface of the upper mold 22. The upper mold 22 includes a rotary shaft 31, a heating mold 32, a protrusion 33, an extension block 34, a spring 35, a middle mold 36, a rolling body 37, and a connecting rod 38. The rotary shaft 31 fixes the swing point of the connecting rod 38. The protrusion 33 and the heating mold 32 are an integral structure. The connecting rod 38 connects the rotary shaft 31 and the rolling body 37. The extension block 34 and the middle mold 36 are an integral structure. The spring 35 is installed on the lower surface of the extension block 34. The roller 37 will roll along the upper surface of the extension block 34 and spread out to both sides. When the roller 37 rolls to the farthest distance, the telescopic rod 24 continues to press down, which will drive the heating mold 32 and the middle mold 36 to merge. When the rotating shaft 31 is subjected to force to rotate the connecting rod 38, it will maintain a continuous rotational force. The protrusion 33 corresponds to the groove of the middle mold 36. Impurities can adhere to the surface of the roller 37, which can be removed by rinsing with clean water. When the connecting rod 38 is moving, it spreads out in a figure-eight shape, and when it is stationary, it spreads out in a small figure-eight shape for easy movement. The roller 37 and the connecting rod 38 are detachable and combinable.

[0025] The heating mold 32 has a rapid heating module, which enables the colloid to be vulcanized and molded smoothly. The extension block 34 extends to the distance that the roll body 37 can roll. The continuous downward pressure of the telescopic rod 24 allows the middle mold 36 to move downward first and then push the heating mold 32. There are four springs 35 symmetrically distributed at the bottom of the extension block 34. The connecting end 21 is connected to the main control equipment for conduction.

[0026] The fixed mold 1 includes a base 11, a rubber block 12, and a stop block 13. The base 11 is fixed to the bottom of the stop block 13. The rubber block 12 and the stop block 13 are an integrated structure. The spring 35 is supported between the extension block 34 and the stop block 13. The gap space of the rubber block 12 and the middle mold 36 complement each other and become an integrated whole. The groove after their combination is circular. The circular groove of the rubber block 12 and the middle mold 36 corresponds to the protrusion 33. The gap between the circular groove and the protrusion 33 is the sealing ring shape that the rubber strip can form. The gap formed by the heating mold 32, the protrusion 33, the middle mold 36, and the rubber block 12 is the shape formed by the sealing ring. The order of movement of the telescopic rod 24 when it is pressed down is that the middle mold 36 and the rubber block 12 are combined, and then the heating mold 32 moves down.

[0027] The specific usage and function of this embodiment are as follows: In this invention, the adhesive strip is placed on the adhesive block 12 by the clamping rod 65. The control device is connected by the connecting end 21. The telescopic rod 24 is pushed down and the heating module of the heating mold 32 is activated. While the telescopic rod 24 is pushing, the heating mold 32, supported by the connecting rod 38 and the rolling body 37, presses down the middle mold 36 to squeeze the spring 35. When the middle mold 36 and the adhesive block 12 merge in space, their upper surfaces will be flush. The telescopic rod 24 continues to push, and the rolling body 37 will be pushed by the force. It will swing open along the rotation axis 31 through the connecting rod 38. The rolling body 37 will roll on the surfaces of the adhesive block 12, the middle mold 36, and the extension block 34. While the rolling body 37 is rolling, it will remove impurities. The adhesive is carried along with the rubber strip and rolled to the end of the extension block 34. The heating mold 32 will merge with the middle mold 36 and the rubber block 12. The mold 36 and the rubber block 12 will form a circular groove, with the protrusion 33 pressing against the center of the circular groove to form the shape required for the sealing ring. As the heating mold 32 continues to press down and move, it is in a heated state, gradually pressing down and heating the rubber strip so that it can gradually fill the molding space and avoid air holes. After the sealing ring is formed, the telescopic rod 24 begins to move upward, so that the heating mold 32 and the middle mold 36 lose resistance and return to their positions. During the upward movement of the middle mold 36, the formed sealing ring will be detached from the rubber block 12 and carried upward. The sealing ring is blown off the surface of the middle mold 36 by the air blowing device.

[0028] Example 2: As shown in the attached document Figure 6 To be continued Figure 8 As shown: The feeding group 3 includes a clamping body 51, a feeding belt 52, and a material preparation box 53. The clamping body 51 is connected to and movable with the material preparation box 53. The feeding belt 52 and the material preparation box 53 are an integrated structure. The clamping body 51 is located above the adhesive block 12. The material preparation box 53 cuts and weighs the adhesive strips to the required size and weight. The clamping body 51 moves between the material preparation box 53 and the adhesive block 12.

[0029] The clamping body 51 includes a crossbar 61, a main conveyor 62, a support rod 63, a fine-tuning rod 64, and a clamping rod 65. The clamping rod 65 is mounted below the crossbar 61 and is movable. Fine-tuning rods 64 are installed on the left and right sides of the crossbar 61. The support rod 63 is installed between the fine-tuning rod 64 and the main conveyor 62. Each clamping rod 65 has a U-shaped structure and can move from the center point to the left and right sides. The groove of the clamping rod 65 is the place for clamping and placing the adhesive strip. The clamping body 51 is centrally controlled by a device control system connected to the connecting end 21. Control signals are precisely transmitted to the drive units of the main conveyor 62, the fine-tuning rod 64, and the clamping rod 65, ensuring that each component operates collaboratively according to a preset process. The main conveyor 62 is a horizontal guide rail structure. The bottom end of its support rod 63 is bolted to the sliding block of the main conveyor 62, and its top end is connected to the fine-tuning rod 64, forming a stable height support structure. The fine-tuning rod 64 is symmetrically installed on the left and right sides of the crossbar 61 and can move horizontally. The clamping rod 65 slides against the lower surface of the crossbar 61 to achieve left and right translation. The slider of the main conveyor 62 is driven by a motor, making horizontal reciprocating motion along the guide rail. The clamping body 51 moves horizontally over a wide range, providing stroke assurance for the clamping and placement of adhesive strips. Its support rod 63, through a rigid support structure, fixes the overall height of the clamping body 51, ensuring that the clamping rod 65 is always at an operating height that matches the adhesive block 12 and the material preparation box 53. After the clamping body 51 moves to the target area through the main transfer channel 62, its fine-tuning rod 64 is driven by a small motor inside the crossbar 61 to make small-range position adjustments, ensuring the accuracy of clamping and placing the adhesive strips. Under the drive of the small motor in the crossbar 61 and the guidance of the slide, the clamping rod 65 can move horizontally left and right, and the clamping and release of the adhesive strips is achieved through the horizontal movement. The three sets of clamping rods 65 move synchronously, which can complete the transfer of three adhesive strips at the same time.

[0030] The clamping rod 65 is used to clamp the adhesive strip and position it above the adhesive block 12 for positioning and movement. There are three sets of clamping rods 65 arranged on the same horizontal line, which can clamp three adhesive strips at the same time. The main moving track 62 is used for large-range movement. When the clamping rod 65 is above the adhesive block 12, the positioning is finely adjusted by the fine-adjusting rod 64, and the adhesive strip clamped by the clamping rod 65 will be placed above the adhesive block 12.

[0031] The rubber sealing ring vulcanization molding device described above includes the following vulcanization process steps: Step 1: The required adhesive strips are conveyed to the preparation box 53 via the feeding belt 52 for adjustment and cutting. After the adhesive strips are prepared in the preparation box 53, the clamping rod 65 is moved along the track of the main conveyor 62 to the preparation box 53. The clamping rod 65 moves along the crossbar 61 to clamp the adhesive strip and delivers it to the top of the adhesive block 12. Then, the clamping body 51 is returned to its original position, ready for the next conveying. Step 2: The control device connects to the control telescopic rod 24 via the connecting end 21 to move it down, activating the heating module of the heating mold 32. When the telescopic rod 24 moves down, the rolling body 37, supported by the connecting rod 38, presses down the middle mold 36 to squeeze the spring 35. After the middle mold 36 and the groove of the adhesive block 12 are matched and merged, the rolling body 37 continues to bear the force of the telescopic rod 24 moving down, and will roll along the surface of the middle mold 36 and the extension block 34 to adhere impurities. Its connecting rod 38 will gradually unfold, so that the heating mold 32 can merge with the middle mold 36 and the adhesive block 12. Step 3: As the heating mold 32 continues to move downward, the rubber strip will be heated at the same time, so that the rubber strip gradually fills the gap between the protrusion 33, the middle mold 36, and the rubber block 12, thereby forming the required sealing ring. After the molding is completed, the telescopic rod 24 is moved upward and all parts are put back in place. Step 4: The formed rubber strips are blown off the equipment using an air blowing device, ready for the next batch of rubber strips to be processed.

[0032] The protrusion 33 has nine protrusions, which can process nine sealing rings at a time. The heating mold 32, protrusion 33, middle mold 36 and rubber block 12 can form a complete mold body.

[0033] The specific usage and function of this embodiment are as follows: In this invention, the required adhesive strips are conveyed to the preparation box 53 via the feeding belt 52. The preparation box 53 cuts and weighs the adhesive strips, adjusts the required size and weight, and mainly uses the U-shaped structure of the clamping rod 65 to clamp the adhesive strips, preventing them from contacting the rising dust on three sides. The three sides are wrapped and conveyed to the adhesive placement block 12, and the strips move along the main conveyor 62. When the clamping rod 65 is placed on the adhesive placement block 12, the position is finely adjusted by the fine-adjusting rod 64 so that the adhesive strips can be accurately placed on the adhesive placement block 12.

[0034] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A rubber sealing ring vulcanization molding device, comprising a fixed mold (1), a movable mold (2), and a feeding group (3), wherein the movable mold (2) is located above the fixed mold (1), and the feeding group (3) is located to the side of the fixed mold (1), characterized in that: The movable mold (2) includes a connecting end (21), an upper mold (22), a bracket (23), and a telescopic rod (24). The connecting end (21) is installed on the outer surface of the bracket (23), and the telescopic rod (24) passes through the bracket (23) and is installed on the upper surface of the upper mold (22). The upper mold (22) includes a rotary shaft (31), a heating mold (32), a protrusion (33), an extension block (34), a spring (35), a middle mold (36), a rolling body (37), and a connecting rod (38). The rotary shaft (31) fixes the swing point of the connecting rod (38). The protrusion (33) and the heating mold (32) are an integrated structure. The connecting rod (38) connects the rotary shaft (31) and the rolling body (37). The extension block (34) and the middle mold (36) are an integrated structure. The spring (35) is installed on the lower surface of the extension block (34). The roller (37) will roll along the upper surface of the extension block (34) and spread out to both sides. When the roller (37) rolls to the farthest distance, the telescopic rod (24) continues to press down, which will drive the heating mold (32) and the middle mold (36) to merge. When the rotating shaft (31) is subjected to force to rotate the connecting rod (38), it will maintain the force of rotation. The protrusion (33) corresponds to the groove of the middle mold (36). Impurities can adhere to the surface of the roller (37), and they can be removed by rinsing with clean water.

2. The rubber sealing ring vulcanization molding apparatus according to claim 1, characterized in that: The heating mold (32) has a rapid heating module, which enables the colloid to be vulcanized and molded smoothly. The distance extended by the extension block (34) is the distance that the roll body (37) can roll. The continuous downward pressure of the telescopic rod (24) can make the middle mold (36) move down first and then push the heating mold (32).

3. The rubber sealing ring vulcanization molding apparatus according to claim 1, characterized in that: The fixed mold (1) includes a base (11), a glue block (12), and a stop block (13). The base (11) is fixed to the bottom of the stop block (13). The glue block (12) and the stop block (13) are an integrated structure. The spring (35) is supported between the extension block (34) and the stop block (13). The gap space of the glue block (12) and the middle mold (36) complement each other and become an integrated structure. The groove after the combination is circular. The circular groove of the glue block (12) and the middle mold (36) is combined with the protrusion (33) and corresponds to each other. The gap between the circular groove and the protrusion (33) is the sealing ring shape that the glue strip can form.

4. The rubber sealing ring vulcanization molding device according to claim 1, characterized in that: The feeding group (3) includes a clamping body (51), a feeding belt (52), and a material preparation box (53). The clamping body (51) is connected to and movable with the material preparation box (53). The feeding belt (52) and the material preparation box (53) are an integrated structure. The clamping body (51) is located above the adhesive block (12).

5. The rubber sealing ring vulcanization molding apparatus according to claim 4, characterized in that: The clamping body (51) includes a crossbar (61), a main conveyor (62), a support rod (63), a fine-tuning rod (64), and a clamping rod (65). The clamping rod (65) is mounted below the crossbar (61) and is movable. Fine-tuning rods (64) are installed on the left and right sides of the crossbar (61). The support rod (63) is installed between the fine-tuning rod (64) and the main conveyor (62).

6. The rubber sealing ring vulcanization molding apparatus according to claim 5, characterized in that: The clamping rod (65) is used to clamp the adhesive strip above the adhesive block (12) for positioning and movement. The clamping rod (65) has three sets arranged on the same horizontal line, which can clamp three adhesive strips at the same time.

7. A vulcanization process for rubber sealing rings, characterized in that: The rubber sealing ring vulcanization molding apparatus according to any one of claims 1-6 comprises the following vulcanization process steps: Step 1: The required adhesive strips are transferred to the preparation box (53) via the feeding belt (52) for adjustment and cutting. After the adhesive strips are prepared in the preparation box (53), the control clamp (65) moves along the track of the main conveyor (62) to the preparation box (53). The clamp (65) moves along the crossbar (61) to clamp the adhesive strips. After the adhesive strips are placed on the adhesive block (12), the clamping body (51) is put back into place to prepare for the next conveying. Step 2: The control device connects to the control telescopic rod (24) via the connecting end (21) to move it down and start the heating module of the heating mold (32). When the telescopic rod (24) moves down, the rolling body (37) is supported by the connecting rod (38) and presses the middle mold (36) down to squeeze the spring (35). After the middle mold (36) and the groove of the adhesive block (12) are matched and merged, the rolling body (37) continues to bear the force of the telescopic rod (24) moving down. It will roll and adhere impurities along the surface of the middle mold (36) and the extension block (34). Its connecting rod (38) will gradually unfold so that the heating mold (32) can merge with the middle mold (36) and the adhesive block (12). Step 3: As the heating mold (32) continues to move downward, the rubber strip will be heated at the same time, so that the rubber strip gradually fills the gap between the protrusion (33), the middle mold (36), and the rubber block (12), thereby forming the required sealing ring. After the molding is completed, the telescopic rod (24) is moved upward and all parts are put back in place. Step 4: The formed rubber strips are blown off the equipment using an air blowing device, ready for the next batch of rubber strips to be processed.

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