Rubber sealing ring vulcanization forming device and vulcanization process

Abstract

The application discloses a rubber sealing ring vulcanization forming device and a vulcanization process, and relates to the technical field of rubber sealing ring vulcanization forming devices.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of rubber forming, more specifically, it relates to a rubber sealing ring vulcanization forming device and vulcanization process. BACKGROUND

[0002] Rubber sealing ring vulcanization forming is a key equipment for converting unvulcanized rubber material into a sealing ring with elasticity, heat resistance and mechanical strength through heating, pressurization and chemical reaction, and vulcanization is the core process of rubber processing.

[0003] During the demolding process of the vulcanized rubber product through the air blowing device, due to the impact of high-pressure gas, the product is automatically separated from the mold, which can cause dust raising in the working area. These suspended dust will settle on the surface of the mold cavity before the next production cycle starts in the standby stage of the equipment. When the new rubber strip is placed, the residual dust will adhere to the interface with the rubber strip, resulting in interface contamination during the subsequent vulcanization process, which ultimately affects the vulcanization quality and surface performance of the product. SUMMARY

[0004] In order to solve the above technical problems, the purpose and effect of the rubber sealing ring vulcanization forming device and vulcanization process of the present application are achieved by the following specific technical means:

[0005] The 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 on the side of the fixed mold;

[0006] The movable mold includes a connecting end, an upper mold, a support, and an extension rod, the connecting end is installed on the outer surface of the support, and the extension rod is installed on the upper surface of the upper mold through the support;

[0007] The upper mold includes a rotary shaft, a heating mold, a protrusion, an extension block, a spring, a middle mold, a rolling adhesive body, and a connecting rod, the rotary shaft is fixedly connected to the swing point of the connecting rod, the protrusion is an integrated structure with the heating mold, the two ends of the connecting rod are respectively connected to the rotary shaft and the rolling adhesive body, the extension block is an integrated structure with the middle mold, and the spring is installed on the lower surface of the extension block;

[0008] The rolling adhesive body will roll along the upper surface of the middle mold and expand to both sides, when the rolling adhesive body rolls to the farthest distance, the extension rod continues to press down, which will drive the heating mold to merge with the middle mold, the rotary shaft continuously maintains the rotating force when the connecting rod is stressed to rotate, the protrusion corresponds to the groove of the middle mold, the surface of the rolling adhesive body can adhere to impurities, which can be easily removed by washing with water, and the connecting rod expands in the shape of an eight when it moves and expands in the shape of a small eight when it is stationary.

[0009] As a further improvement of the present application, the heating mold has a fast heating module, so that the rubber strip can be smoothly vulcanized and formed, the length of the extension block limits the rolling stroke of the rolling adhesive body, and the continuous pressing of the telescopic rod can make the middle mold move downward first and then push the heating mold, and the spring is provided with four symmetrical distribution at the bottom of the extension block.

[0010] As a further improvement of the present application, the fixed mold comprises a base, a glue placing block and a stop block, the base is fixed to the bottom of the stop block, the glue placing block is integrated with the stop block, the spring is supported between the extension block and the stop block, the gap space of the glue placing block is complementary to the middle mold to become an integral whole, the combined recess of the glue placing block and the middle mold is a circular structure, the circular recess of the glue placing block combined with the middle mold is combined with the protrusion, and the gap between the circular recess and the protrusion is the sealing ring formed by the rubber strip.

[0011] As a further improvement of the present application, the feeding group comprises a clamping body, a feeding belt and a material preparation box, the clamping body is connected with the material preparation box and movable, the feeding belt is integrated with the material preparation box, the clamping body is above the glue placing block, and the material preparation box cuts and weighs the rubber strip to the required size and weight.

[0012] As a further improvement of the present application, the clamping body comprises a horizontal rod, a main moving channel, a supporting rod, a fine adjustment rod and a clamping rod, the clamping rod is assembled below the horizontal rod and movable, the fine adjustment rod is installed on the left and right sides of the horizontal rod, the supporting rod is installed between the fine adjustment rod and the main moving channel, and the clamping rod is a concave structure and movable to the left and right sides from the center point.

[0013] As a further improvement of the present application, the clamping rod is used for clamping the rubber strip and can move and position the rubber strip above the glue placing block, the clamping rod is provided with three groups on the same horizontal line and can clamp three rubber strips at the same time, and the main moving channel is used for large range movement and can be fine adjusted and positioned by the fine adjustment rod when the clamping rod is above the glue placing block.

[0014] As a further improvement of the present application, the rubber sealing ring vulcanization forming device has the following vulcanization process steps:

[0015] In step one, the required rubber strip is transmitted to the material preparation box through the feeding belt for adjustment and cutting, after the rubber strip in the material preparation box is prepared, the clamping rod is controlled to move along the track of the main moving channel to the inside of the material preparation box, the clamping rod moves along the horizontal rod to clamp the rubber strip, the rubber strip is sent to the glue placing block for placement, and then the clamping body is returned to the original position for the next conveying.

[0016] Step two: the control device connects the control telescopic rod to move down through the connecting end, starts the heating module of the heating mold, and the rolling adhesive body is continuously subjected to the force of the telescopic rod moving down, and will roll and adhere to the impurities on the surface of the middle mold and the extension block along the surface of the middle mold and the extension block, and the connecting rod will gradually expand, so that the heating mold can be combined with the middle mold and the rubber block;

[0017] Step three: while the heating mold continues to move down, the rubber strip is heated at the same time, so that the gap between the convex block, the middle mold and the rubber block is gradually filled with the rubber strip, thereby forming the required sealing ring, and after the molding is completed, the telescopic rod is moved up, and all parts are returned to the original position;

[0018] Step four: the formed rubber strip is blown away from the device by the air blowing device, and the next batch of rubber strip is processed.

[0019] The convex block is provided with nine sealing rings which can be processed at a time.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] Firstly, while the telescopic rod is pressed down, the rolling adhesive body will stretch out to roll and adhere to the impurities on the upper surface of the middle mold and the rubber block, so that the dust blown up by the air blowing device is adhered by the rolling adhesive body, and after the adhesion is completed, the heating mold will be moved above the middle mold and the rubber block for cooperation, so that the impurities will not be in the mold body and the rubber strip will be vulcanized together.

[0022] Secondly, during the process of continuously pressing down the heating mold, the rubber strip contacted will be gradually heated and filled in the space of the mold body, avoiding the uneven molding effect caused by too fast heating speed.

[0023] Thirdly, the rubber strip cut and adjusted is wrapped on three sides for conveying, avoiding that the impurities blown up by the air blowing device are adhered to the rubber strip and vulcanized together with the rubber strip, thereby affecting the quality of the rubber strip. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of the rubber sealing ring vulcanization molding device.

[0025] Figure 2 It is a structure schematic view of the moving mold.

[0026] Figure 3 It is a structure schematic view of the upper mold.

[0027] Figure 4 It is a sectional structure schematic view of the fixed mold.

[0028] Figure 5The bottom structure schematic diagram of the upper die of the application.

[0029] Figure 6 The structure schematic diagram of the feeding group of the application.

[0030] Figure 7 The sectional structure schematic diagram of the material clamping body of the application.

[0031] Figure 8 The vulcanization forming process of the rubber sealing ring of the application.

[0032] In the figure: fixed die-1, moving die-2, feeding group-3, connecting end-21, upper die-22, support-23, telescopic rod-24, rotary shaft-31, heating die-32, protruding block-33, extension block-34, spring-35, middle die-36, rolling adhesive body-37, connecting rod-38, base-11, rubber placing block-12, stop block-13, material clamping body-51, feeding belt-52, spare material box-53, horizontal rod-61, main moving track-62, supporting rod-63, fine adjustment rod-64, clamping rod-65. DETAILED DESCRIPTION

[0033] The application is further described below in combination with the drawings:

[0034] Example 1: as shown in the accompanying drawings Figure 1 to the accompanying drawings: Figure 5

[0035] The application provides a rubber sealing ring vulcanization forming device and vulcanization process, and the structure comprises a fixed die 1, a moving die 2 and a feeding group 3, the moving die 2 is located above the fixed die 1, and the feeding group 3 is located on the side of the fixed die 1.

[0036] The moving die 2 comprises a connecting end 21, an upper die 22, a support 23 and a telescopic rod 24, the connecting end 21 is installed on the outer surface of the support 23, and the telescopic rod 24 penetrates through the support 23 and is installed on the upper surface of the upper die 22.

[0037] The upper die 22 comprises a rotary shaft 31, a heating die 32, a protruding block 33, an extension block 34, a spring 35, a middle die 36, a rolling adhesive body 37 and a connecting rod 38, the rotary shaft 31 is fixedly connected with the swinging point of the connecting rod 38, the protruding block 33 and the heating die 32 are integrated, the two ends of the connecting rod 38 are respectively connected with the rotary shaft 31 and the rolling adhesive body 37, the extension block 34 and the middle die 36 are integrated, and the spring 35 is installed on the lower surface of the extension block 34.

[0038] ​The rolling adhesive body 37 will roll along the upper surface of the middle mold 36 and expand to both sides. When the rolling adhesive body 37 rolls to the farthest distance, the telescopic rod 24 continues to press down, which will drive the heating mold 32 to combine with the middle mold 36. The rotating shaft 31 continuously maintains the rotating force when the connecting rod 38 is stressed to rotate. The protruding block 33 corresponds to the groove of the middle mold 36. The surface of the rolling adhesive body 37 can adhere to impurities, which can be removed by washing with clean water. The connecting rod 38 expands in an eight-shaped form when it is active and in a small eight-shaped form when it is static, which facilitates the expansion when it is active. The rolling adhesive body 37 and the connecting rod 38 are detachably combined.

[0039] The heating mold 32 has a rapid heating module, which enables the adhesive tape to be smoothly vulcanized and formed. The length of the extension block 34 limits the rolling stroke of the rolling adhesive body 37. The continuous pressing down of the telescopic rod 24 can make the middle mold 36 move down first and then push the heating mold 32. The spring 35 is symmetrically distributed at the bottom of the extension block 34 and has four springs in total. The connecting end 21 is connected to the main control equipment for conduction.

[0040] The fixed mold 1 includes a base 11, a glue placing block 12, and a blocking block 13. The base 11 is fixed to the bottom of the blocking block 13. The glue placing block 12 and the blocking block 13 are integrated structures. The spring 35 is supported between the extension block 34 and the blocking block 13. The gap space of the glue placing block 12 and the middle mold 36 are complementary and integrated. The combined recesses of the glue placing block 12 and the middle mold 36 are circular structures. The circular recesses of the combination of the glue placing block 12 and the middle mold 36 correspond to the protruding block 33. The gap between the circular recesses and the protruding block 33 is the sealing ring shape formed by the adhesive tape. The gap combined by the heating mold 32, the protruding block 33, the middle mold 36, and the glue placing block 12 is the shape formed by the sealing ring. The telescopic rod 24 moves in the order of the middle mold 36 and the glue placing block 12, and then the heating mold 32 moves down.

[0041] The specific use and role of the embodiment are as follows:

[0042] In the present application, the rubber strip is placed on the rubber placing block 12 by the clamping rod 65, and the control device is connected by the connecting end 21. The telescopic rod 24 is pushed down and the heating module of the heating die 32 is started. The telescopic rod 24 pushes, and at the same time, the heating die 32 is pressed down by the supporting force of the rolling adhesive body 37 through the connecting rod 38, so as to extrude the spring 35. When the middle die 36 and the space of the rubber placing block 12 are combined, the upper surfaces of the two will be flush. The telescopic rod 24 is still continuously pushed, and the rolling adhesive body 37 will be pushed by the force, and will swing along the rotary shaft 31 through the connecting rod 38. The rolling adhesive body 37 will roll on the surface of the rubber placing block 12, the middle die 36 and the extension block 34. The rolling adhesive body 37 will stick impurities away at the same time, and will roll to the end of the extension block 34. The heating die 32 will be combined with the middle die 36 and the rubber placing block 12. The middle die 36 and the rubber placing block 12 will form a circular groove. The protrusion 33 is on the center of the circular groove, so as to form the required shape of the sealing ring. In the process of continuous downward movement of the heating die 32, it is in a heated state. The rubber strip is gradually pressed and heated, so as to gradually fill the forming space and avoid pores. After the sealing ring is formed, the telescopic rod 24 starts to move upwards, so that the heating die 32 and the middle die 36 lose resistance and return to the original position. In the process of upward movement of the middle die 36, the formed sealing ring is separated from the rubber placing block 12 and is taken upwards. The sealing ring is blown off from the surface of the middle die 36 by the air blowing device.

[0043] Embodiment 2: as shown in the accompanying Figure 6 to the accompanying Figure 8 drawings:

[0044] 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 with the material preparation box 53 and is movable. The feeding belt 52 and the material preparation box 53 are integrated. The clamping body 51 is above the rubber placing block 12. The material preparation box 53 cuts and weighs the rubber strip to the required size and weight. The clamping body 51 moves between the material preparation box 53 and the rubber placing block 12.

[0045] The clamping body 51 includes a cross rod 61, a main moving channel 62, a supporting rod 63 and a fine adjustment rod 64. The clamping rod 65 is movable below the cross rod 61. The fine adjustment rod 64 is installed on the left and right sides of the cross rod 61. The supporting rod 63 is installed between the fine adjustment rod 64 and the main moving channel 62. The clamping rod 65 is a concave structure and can move to the left and right sides from the center. The groove of the clamping rod 65 is a rubber strip clamping and placing position.

[0046] The clamping body 51 is centrally controlled by the device control system connected to the connecting end 21, and the control signal is accurately transmitted to the driving units of the main moving track 62, the fine adjustment rod 64 and the clamping rod 65, so as to ensure that each component cooperates according to the preset process. The main moving track 62 is a horizontal guide rail structure, the bottom end of the support rod 63 is fixedly assembled with the sliding block of the main moving track 62 through bolts, and the top end is connected with the fine adjustment rod 64, forming a stable height support structure. The fine adjustment rod 64 is symmetrically installed on the left and right sides of the horizontal rod 61 and can move horizontally. The clamping rod 65 is in sliding fit with the lower surface of the horizontal rod 61, realizing the left-right translation function. The sliding block of the main moving track 62 is driven by a motor to move horizontally along the guide rail, thereby driving the clamping body 51 to move horizontally in a large range, providing stroke guarantee for the clamping and placing of the rubber strip. The support rod 63 fixes the overall height of the clamping body 51 through a rigid support structure, so as to ensure that the clamping rod 65 is always at the working height matched with the rubber placing block 12 and the material preparation box 53. When the clamping body 51 moves to the target area through the main moving track 62, the fine adjustment rod 64 is driven by the small motor in the horizontal rod 61 to make small-range position fine adjustment, so as to ensure the accuracy of clamping and placing of the rubber strip. The clamping rod 65 can move left and right horizontally under the driving of the small motor in the horizontal rod 61 and the guiding action of the sliding groove, and the clamping and release of the rubber strip are realized through the horizontal movement. The three clamping rods 65 act synchronously to simultaneously complete the transfer of three rubber strips.

[0047] The clamping rod 65 is used to clamp the rubber strip and can move and position the rubber strip above the rubber placing block 12. The clamping rod 65 is provided with three groups in the same horizontal line and can clamp three rubber strips at the same time. The main moving track 62 is used for large-range movement. When the clamping rod 65 is above the rubber placing block 12, the fine adjustment rod 64 is used for fine adjustment and positioning. The rubber strip clamped by the clamping rod 65 will be placed above the rubber placing block 12.

[0048] The rubber sealing ring vulcanization forming device has the following vulcanization process steps:

[0049] Step one: The required rubber strip is transmitted to the material preparation box 53 through the feeding belt 52 for adjustment and cutting. After the rubber strip in the material preparation box 53 is prepared, the clamping rod 65 moves along the track of the main moving track 62 to the inside of the material preparation box 53. The clamping rod 65 moves along the horizontal rod 61 to clamp the rubber strip and sends the rubber strip to the rubber placing block 12 above for placement. Then the clamping body 51 is returned to the original position for the next conveying.

[0050] Step two: control equipment through the connection end 21 connection control telescopic rod 24 down, start heating module of heating die 32, telescopic rod 24 down when the force of rolling adhesive body 37 is supported by connecting rod 38, the middle die 36 is pressed to the spring 35, when the middle die 36 and the recess matching of glue block 12 is completed, the rolling adhesive body 37 is still in the force of telescopic rod 24 down, will be along the surface of the middle die 36 and the extension block 34 rolling adhesive impurities, its connecting rod 38 will gradually unfold, so that its heating die 32 can be combined with the middle die 36, glue block 12;

[0051] Step three: while the heating die 32 is continuously moving down, the glue strip will be heated at the same time, so that the glue strip gradually fills the gap between the convex block 33, the middle die 36 and the glue block 12, thereby forming the required sealing ring, after forming, the telescopic rod 24 is moved up, and all parts are returned to the original position.

[0052] Step four: the formed glue strip is blown away from the equipment by the air blowing device, and the next batch of glue strip is processed.

[0053] The convex block 33 is provided with nine convex blocks, which can process nine sealing rings at a time, and the heating die 32, the convex block 33, the middle die 36 and the glue block 12 can form a complete mold body.

[0054] The specific use and effect of the embodiment are as follows:

[0055] In the application, the required glue strip is conveyed to the material preparation box 53 through the feeding belt 52, the material preparation box 53 cuts and weighs the glue strip, adjusts the size and weight of the glue strip, mainly clamps the glue strip through the concave-shaped structure of the clamp rod 65, avoids contact with the rising dust on three sides, wraps the three sides and conveys them to the glue block 12, mainly moves along the main moving track 62, when the clamp rod 65 is placed on the glue block 12, the position is adjusted through the fine adjustment rod 64, so that the glue strip can be accurately placed on the glue block 12.

[0056] The technical solutions of the application or the technical solutions of the application inspired by the skilled in the art can achieve the above technical effects, and are all within the protection scope of the application.

Claims

1. A rubber seal ring vulcanization forming device, which structure comprises a fixed mold (1), a moving mold (2), and a feeding group (3), wherein the moving mold (2) is located above the fixed mold (1), and the feeding group (3) is located on the side of the fixed mold (1), characterized in that: the moving mold (2) comprises a connecting end (21), an upper mold (22), a support (23), and an extension rod (24), wherein the connecting end (21) is installed on the outer surface of the support (23), and the extension rod (24) penetrates through the support (23) and is installed on the upper surface of the upper mold (22); the upper mold (22) comprises a rotary shaft (31), a heating mold (32), a protruding block (33), an extension block (34), a spring (35), a middle mold (36), a rolling adhesive body (37), and a connecting rod (38), wherein the rotary shaft (31) is fixedly connected with the swing point of the connecting rod (38), the protruding block (33) is in an integrated structure with the heating mold (32), the two ends of the connecting rod (38) are respectively connected with the rotary shaft (31) and the rolling adhesive body (37), and the extension block (34) is in an integrated structure with the middle mold (36), and the spring (35) is installed on the lower surface of the extension block (34); the rolling adhesive body (37) will roll along the upper surface of the middle mold (36) and expand to both sides, when the rolling adhesive body (37) rolls to the farthest distance, the extension rod (24) continuously presses down to drive the heating mold (32) to combine with the middle mold (36), the rotary shaft (31) continuously maintains the rotating force when the connecting rod (38) is forced to rotate, the protruding block (33) corresponds to the groove of the middle mold (36), and the surface of the rolling adhesive body (37) can adhere impurities, which can be removed by washing with water. The heating mold (32) has a rapid heating module, so that the rubber strip can be smoothly vulcanized and formed, the length of the extension block (34) limits the rolling stroke of the rolling adhesive body (37), and the continuous pressing down of the extension rod (24) can make the middle mold (36) move downward first and then push the heating mold (32). The fixed mold (1) comprises a base (11), a rubber placing block (12), and a stop block (13), wherein the base (11) is fixed to the bottom of the stop block (13), the rubber placing block (12) is in an integrated structure with the stop block (13), the spring (35) is supported between the extension block (34) and the stop block (13), the gap space of the rubber placing block (12) is complementary to the middle mold (36) to become an integral, the combined groove of the rubber placing block (12) and the middle mold (36) is in a circular structure, the circular groove of the combination of the rubber placing block (12) and the middle mold (36) corresponds to the protruding block (33), and the gap between the circular groove and the protruding block (33) is the seal ring shape formed by the rubber strip. The feeding group (3) comprises a clamping material body (51), a feeding belt (52), and a material preparation box (53), wherein the clamping material body (51) is connected with the material preparation box (53) and is movable, the feeding belt (52) is in an integrated structure with the material preparation box (53), and the clamping material body (51) is located above the rubber placing block (12).

2. The rubber seal ring vulcanization forming device according to claim 1, characterized in that: ​ 3. The rubber seal ring vulcanization forming device according to claim 1, characterized in that: ​ 4. The rubber seal ring vulcanization forming device according to claim 3, characterized in that: ​ 5. The rubber seal ring vulcanization forming device according to claim 4, characterized in that: The clamp body (51) comprises a crossbar (61), a main track (62), a support rod (63), a fine adjustment rod (64), and a clamp rod (65), the clamp rod (65) is assembled below the crossbar (61) and is movable, the fine adjustment rod (64) is installed on the left and right sides of the crossbar (61), and the support rod (63) is installed between the fine adjustment rod (64) and the main track (62).

6. The rubber seal ring vulcanization forming device according to claim 5, characterized in that: The clamp rod (65) is used for clamping the rubber strip and can move and position the rubber strip above the rubber placing block (12), and the clamp rod (65) is provided with three groups in the same horizontal line, and three rubber strips can be clamped at the same time.

7. A rubber seal ring vulcanization process characterized by: The rubber sealing ring vulcanization forming device of claim 6, the rubber sealing ring vulcanization forming process steps are as follows: Step one: the required rubber strip is transmitted to the material preparation box (53) through the feeding belt (52) for adjustment and cutting, after the rubber strip in the material preparation box (53) is prepared, the clamp rod (65) moves along the track of the main track (62) to the inside of the material preparation box (53), the clamp rod (65) moves along the crossbar (61) to clamp the rubber strip, and the rubber strip is placed above the rubber placing block (12), then the clamp body (51) is returned to the original position, and the next conveying is prepared; Step two: control the equipment to connect and control the telescopic rod (24) to move down through the connecting end (21), start the heating module of the heating die (32), when the telescopic rod (24) moves down, the rolling adhesion body (37) is supported by the connecting rod (38) to press the middle die (36) to extrude the spring (35), when the middle die (36) and the groove of the rubber placing block (12) are matched and completed, the rolling adhesion body (37) still continuously bears the force of the telescopic rod (24) moving down, and will roll and adhere impurities along the surface of the middle die (36) and the extension block (34), and the connecting rod (38) will gradually expand, so that the heating die (32) can be combined with the middle die (36) and the rubber placing block (12); Step three: while the heating die (32) continuously moves down, the rubber strip will be heated at the same time, so that the rubber strip gradually fills the gap between the convex block (33), the middle die (36) and the rubber placing block (12), thereby forming the required sealing ring, after the forming is completed, the telescopic rod (24) is moved up, and all parts are returned to the original position; Step four: the formed rubber strip is blown away from the equipment by the air blowing device, and the next batch of rubber strip is processed.

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