A pure rubber water-gas dual-purpose pressure structure for vulcanizing machine and its manufacturing process

Abstract

The present invention relates to the technical field related to the pressurized structural system of a vulcanizer, and discloses a pure rubber water-gas dual-purpose pressure structure and manufacturing process for a vulcanizer, including a rubber bag, wherein the top and bottom of the rubber bag are respectively provided with an upper guard plate and a lower guard plate, a connector is provided at the water guide port of the rubber bag, and the rubber bag is composed of a woven cloth layer, an outer rubber layer and an inner rubber layer, and the woven cloth layer is sandwiched between the outer rubber layer and the inner rubber layer. The present invention effectively prevents the rubber bag from excessively deforming when subjected to excessive internal pressure, can fully expand, and fully utilizes the free flow characteristics of water fluid or gas fluid, to ensure that the rubber bag can be supported and pressed in all directions over the entire area, to avoid the internal surfaces of the rubber bag from sticking to each other during high-temperature vulcanization, to conduct the reaction and fusion of the filler melt with the filler into a fluid, to guide the filler out, to ensure that the inner cavity of the rubber bag is uniformly introduced with high-pressure gas or liquid, to ensure the stability of the molding of the inner cavity of the rubber bag, and thus to perform balanced pressure.

Description

Technical Field

[0001] The invention relates to the technical field related to a vulcanizer pressurizing structure system, and in particular to a pure rubber water-gas dual-purpose pressure structure for a vulcanizer and a manufacturing process. Background Art

[0002] A vulcanizer is a machine that vulcanizes various rubber and plastic products. According to the specific structure, it can be divided into a flat vulcanizer, a four-column vulcanizer, a cushion belt vulcanizer and a tape vulcanizer. Among them, the tape vulcanizer is widely used in the field because of its assembly structure, easy disassembly and transportation, and relatively small space. When the flat vulcanizer vulcanizes and heats the rubber repair belt, it is necessary to cooperate with the pressurization system to pressurize the rubber repair belt so that the joint parts of the rubber repair belt are vulcanized and combined with each other under high pressure to ensure the connection stability of the rubber repair belt. However, there are some problems with the traditional flat vulcanizer extrusion system:

[0003] (1) A mechanical pressurization method in which a sealing outer frame and a sealing pressure plate cooperate with each other is adopted. When in use, an external air pump or water pump injects high-pressure airflow or water flow into the sealing frame, so that the sealing pressure plate applies pressure to the internal structure of the vulcanizer. The sealing friction between the sealing plate and the sealing outer frame inside the pressurization structure consumes part of the external pressure, reducing the effective power input of the equipment. At the same time, the internal sealing plate is prone to leakage, which reduces the overall stability of the assembly equipment. Moreover, pressurization requires secondary pressurization, and there is no pressure to support it from all sides, which makes the joint of the rubber vulcanized repair belt prone to blistering and degumming;

[0004] (2) A mechanical pressurization method is used in which the rubber and aluminum plates are clamped together by steel plates and screws to cooperate with each other, and high-pressure air or water is injected. The connecting part of the rubber and aluminum plates cannot fully expand under the internal high-pressure extrusion environment, and cannot effectively apply pressure to the connecting part of the rubber vulcanized repair belt, resulting in uneven pressure on the surface of the rubber vulcanized repair belt, which is easy to reduce the connection strength of the connecting part of the rubber vulcanized repair belt;

[0005] (3) The pressurization method of using a pressurized rubber water bag requires multiple processing steps before the rubber water bag can be formed and used. The pressurization system is just a simple rubber pressure water bag structure, which is prone to excessive deformation under the action of a large internal pressure, shortening the service life of the pressure water bag. During assembly and use, the rubber water bag is easily damaged by hard objects on the surface, and is prone to bending and deforming to produce creases, shortening the service life of the water bag.

[0006] Therefore, the inventor has designed a pure rubber water-gas dual-purpose pressure structure and manufacturing process for a vulcanizer to optimize the pressure structure and manufacturing process of the existing rubber water bag. Summary of the invention

[0007] 1. Technical issues to be solved

[0008] In view of the deficiencies in the prior art, the present invention provides a pure rubber water-gas dual-purpose pressure structure and manufacturing process for a vulcanizer, which solves the problem that the traditional vulcanizer pressurizing system cannot apply uniform and effective pressure to the connecting part of the rubber repair belt and the traditional rubber water bag pressurizing structure is easily damaged.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pure rubber water-gas dual-purpose pressure structure and manufacturing process for a vulcanizer, comprising a rubber bag, wherein the top and bottom of the rubber bag are respectively provided with an upper guard plate and a lower guard plate, and a connector is provided at the water guide port of the rubber bag.

[0011] The rubber bag consists of a woven fabric layer, an outer rubber layer and an inner rubber layer, wherein the woven fabric layer is sandwiched between the outer rubber layer and the inner rubber layer.

[0012] Preferably, the thickness of the woven fabric layer is in the range of 1-3 mm.

[0013] Preferably, the thickness of the outer rubber layer is smaller than that of the inner rubber layer, the thickness of the outer rubber layer is in the range of 1-3 mm, and the thickness of the inner rubber layer is in the range of 3-6 mm, and the outer rubber layer and the inner rubber layer completely cover and glue the sandwiched woven fabric layer.

[0014] Preferably, the overall thickness of the rubber bag is 20-50 mm. The rubber bag is ultra-thin in design while ensuring strength in use, which greatly reduces the weight of the pressurization system of the assembly equipment and facilitates operation by relevant operators.

[0015] Preferably, the upper guard plate and the lower guard plate completely cover the top and bottom surfaces of the rubber bag, and the upper guard plate and the lower guard plate are in full contact with the rubber bag.

[0016] Preferably, the connector and the rubber bag are integrally formed.

[0017] Another technical problem to be solved by the present invention is to provide a pure rubber water-gas dual-purpose pressure structure and a manufacturing process for a vulcanizer, comprising the following steps:

[0018] S1. Cut the rubber layer and fabric cloth according to production needs. The bottom rubber layer is the outer rubber layer, the middle one is the woven fabric layer, and the top rubber layer is the inner rubber layer. The inner rubber layer, woven fabric layer and outer rubber layer are overlapped flush with each other.

[0019] S2. Anti-adhesion grease or high temperature resistant oil paper is applied to the surface of the inner rubber layer. The edges of the inner rubber layer, the fabric layer and the outer rubber layer of the rubber bag are overlapped and bonded to form a closed rubber bag with a protruding air guide port.

[0020] S3, placing the combined closed rubber bag on a vulcanizing mold of a flat vulcanizing machine, filling the combined rubber bag with materials, and adjusting the side baffles on the vulcanizing mold to baffle the four sides of the combined sealed rubber bag;

[0021] S4, insert the connector into the inner side of the sealing rubber bag through the air guide port, place the inlet of the connector outside, and fix the connector to the air guide port of the sealing rubber bag using a fixing splint;

[0022] S5. Use the upper mold of the vulcanizer to press the closed rubber bag placed on the vulcanization mold to form a closed pressed cavity. At this time, the upper mold contacts and fits the top surface of the sealed rubber bag filled with the material, and the side baffle contacts and fits the four sides of the sealed rubber bag;

[0023] S6. Connect the high-pressure air pump through the connector and inject 2.0-2.5Mpa of high pressure into the sealed rubber bag;

[0024] S7. Control the vulcanizer through the vulcanizer control platform, heat the combined sealing rubber bag through the heating system, and heat it up to 100℃-200℃ at an average speed within 60-120min under an ambient pressure of 2.0-2.5Mpa, then keep it at a constant pressure and temperature for 30-60min, and finally cool it down to room temperature at an average speed within 30-300min under a constant pressure environment through the cooling system, and disassemble the mold and side baffle;

[0025] S8, taking out the formed rubber bag, injecting filler melt liquid into the formed rubber bag through the connector, so that the filler and liquid in the rubber bag fuse and react with each other to form a fluid, and the fluid flows out through the connector of the rubber bag;

[0026] S9, sealing test, inject high-pressure water into the rubber bag through the connector to observe whether there is any leakage;

[0027] S10, the qualified sealing bag is bonded to the surfaces of the upper guard plate and the lower guard plate by means of high temperature resistant adhesive, or positioned by means of contact and overlapping positioning;

[0028] S11. Assembly completed and storage.

[0029] (III) Beneficial effects

[0030] The invention provides a pure rubber water-gas dual-purpose pressure structure for a vulcanizer and a manufacturing process.

[0031] It has the following beneficial effects:

[0032] (1) The structural layer composition of the rubber bag effectively prevents excessive deformation when subjected to excessive internal pressure. The outer rubber layer, the inner rubber layer and the fabric layer are bonded to each other during the high-temperature vulcanization process. The structural characteristics of the fabric layer itself effectively prevent the rubber bag from tensile deformation. The thickness of the rubber bag body is 20-25 mm. Compared with traditional pressure water bags, it is ultra-light. Under the coordinated action of the structural layer between the outer rubber layer, the inner rubber layer and the fabric layer, it can fully expand and make full use of the free flow characteristics of water or gas fluids to ensure that the rubber bag can be fully supported and compressed over the entire area.

[0033] (2) The combination of the rubber bag and the upper and lower guard plates prevents the rubber bag from bending and deforming during assembly and prevents hard objects from damaging the surface structure of the rubber bag. The three-in-one structure also makes it easy for operators to carry and transport the rubber bag through the upper and lower guard plates. At the same time, the setting of the upper and lower guard plates prevents the surface of the rubber bag from being damaged by excessively high temperatures during use of the assembly equipment.

[0034] (3) The rubber bag adopts an integrated vulcanization molding process to increase the integrated connection strength between the rubber bag material layers, so that the outer rubber layer, the woven fabric layer and the inner rubber layer are glued to each other, thereby increasing the overall structural strength of the rubber bag.

[0035] (4) The one-piece molding process of the rubber bag shapes the inner cavity and outer shape of the rubber bag through the filling material, effectively ensuring the success rate of the overall molding of the rubber bag. At the same time, the filler melt reacts with the filler to form a fluid, and the filler is exported to ensure that the high-pressure gas or liquid is evenly introduced into the inner cavity of the rubber bag, thereby evenly applying pressure.

[0036] (5) The one-piece molding process of the rubber bag squeezes the side of the rubber bag through the upper mold and the side baffle, effectively preventing the rubber bag from excessive deformation due to excessive internal pressure during shaping.

[0037] (6) The connecting head and the air guide port of the rubber bag are integrally vulcanized and bonded to ensure the integrity of the connection between the connecting head and the rubber bag and avoid secondary connection that reduces the sealing performance of the rubber bag.

[0038] (7) When the rubber bag is integrally molded, anti-adhesion grease or high-temperature resistant oil paper is applied to the inner rubber layer to effectively prevent the inner surfaces of the rubber bag from sticking to each other during high-temperature vulcanization, thereby ensuring the stability of the inner cavity molding of the rubber bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the layered structure of the rubber bag combination of the present invention.

[0041] In the figure: 1 rubber bag, 2 upper guard plate, 3 lower guard plate, 4 connector, 1.1 fabric layer, 1.2 outer rubber layer, 1.3 inner rubber layer. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1 As shown, the present invention provides a technical solution: a pure rubber water-gas dual-purpose pressure structure and manufacturing process for a vulcanizer, comprising a rubber bag 1, wherein an upper guard plate 2 and a lower guard plate 3 are respectively provided on the top and bottom of the rubber bag 1, the upper guard plate 2 and the lower guard plate 3 protect the rubber bag 1, and effectively prevent the surface of the rubber bag 1 from being damaged due to excessive temperature of the assembly equipment, a connector 4 is provided at the water guide port of the rubber bag 1, the connector 4 and the rubber bag 1 are integrally formed, and the connection stability between the connector 4 and the rubber bag 1 when introducing high-pressure airflow or water flow is ensured, the overall thickness of the rubber bag 1 is 20-25 mm, the upper guard plate 2 and the lower guard plate 3 completely cover the top and bottom surfaces of the rubber bag 1, the upper guard plate 2 and the lower guard plate 3 are in full contact with the rubber bag 1, effectively preventing hard objects from damaging the surface of the rubber bag 1, and effectively preventing the rubber bag 1 from bending and producing creases when in use, and also facilitating the relevant operators to carry and transport the rubber bag 1 through the upper guard plate 1 and the lower guard plate 2.

[0044] like Figure 2 As shown, the rubber bag 1 is composed of a woven fabric layer 1.1, an outer rubber layer 1.2 and an inner rubber layer 1.3. The woven fabric layer 1.1 is sandwiched between the outer rubber layer 1.2 and the inner rubber layer 1.3. The woven fabric layer 1.1 can be made of a high-strength textile high-temperature resistant material such as nylon cloth or canvas layer. The thickness of the woven fabric layer 1.1 is in the range of 1-3 mm. The thickness of the outer rubber layer 1.2 is less than that of the inner rubber layer 1.3. The thickness of the outer rubber layer 1.2 is in the range of 1-3 mm, and the thickness of the inner rubber layer 1.3 is in the range of 3-6 mm. The outer rubber layer 1.2 and the inner rubber layer 1.3 sandwich the woven fabric layer. 1.1 is completely covered and glued, the thickness of the structural materials of the outer rubber layer 1.2 and the inner rubber layer 1.3 are the same, the inner rubber layer 12 and the inner rubber layer 1.3 are both made of raw rubber layers, the raw rubber layers are vulcanized and matured, and are vulcanized and glued with the woven fabric layer 1.1 within twelve hours to form the rubber bag 1. The rubber bag of the technical solution of the present application adopts a structure in which the rubber layers, woven fabric layers, and rubber layers are vulcanized and laminated with each other. The outermost layer and the innermost layer are both rubber layers, and the rubber layers and woven fabric layers are alternately stacked, and so on. The vulcanized and laminated matching structures of rubber layers, woven fabric layers, rubber layers, woven fabric layers, and rubber layers are adopted.

[0045] In the technical solution of the present application, the upper guard plate 2 and the lower guard plate 3 clamp and position the rubber bag 1. The upper guard plate 2 and the lower guard plate 3 can be bonded to the surface of the rubber bag 1, or the upper guard plate 2 and the lower guard plate 3 can contact and overlap the rubber bag 1 to position it, or other connection and positioning methods can be used to ensure that after long-term use of the equipment, when the surface of the upper guard plate 2 or the lower guard plate 3 is damaged and uneven, the components can be replaced, which greatly extends the service life of the rubber bag 1. The upper guard plate 2 and the lower guard plate 3 support and press the entire area in all directions, thereby ensuring that the rubber vulcanized repair belt joint processed by the assembly equipment is evenly pressurized, has a smooth surface and high strength.

[0046] A pure rubber water-gas dual-purpose pressure structure and manufacturing process for a vulcanizer, comprising the following steps:

[0047] S1. Cut the raw rubber layer and the fabric cloth according to production needs. The bottom raw rubber layer is the outer rubber layer 1.2, the middle one is the woven fabric layer 1.1, and the top raw rubber layer is the inner rubber layer 1.3. The inner rubber layer 1.3, the woven fabric layer 1.1 and the outer rubber layer 1.2 are overlapped flush with each other.

[0048] S2. Anti-adhesion grease or high temperature resistant oil paper is applied to the surface of the inner rubber layer 1.3. The edges of the inner rubber layer 1.3, the fabric layer 1.1 and the outer rubber layer 1.2 of the rubber bag 1 are overlapped and bonded to form a closed rubber bag 1 with a protruding air guide port.

[0049] S3, placing the combined closed rubber bag on a vulcanizing mold of a flat vulcanizing machine, filling the combined rubber bag 1 with materials, and adjusting the side baffles on the vulcanizing mold to baffle the four sides of the combined sealed rubber bag 1;

[0050] S4, insert the connector 4 into the inner side of the sealing rubber bag 1 through the air guide port, place the inlet of the connector 4 outside, and fix the connector 4 at the air guide port of the sealing rubber bag 1 using a fixing clamp;

[0051] S5. Use the upper mold of the vulcanizer to press the closed rubber bag 1 placed on the vulcanization mold to form a closed pressing cavity. At this time, the upper mold contacts and fits the top surface of the sealed rubber bag 1 filled with material, and the side baffle contacts and fits the four side surfaces of the sealed rubber bag 1;

[0052] S6, connect the high-pressure air pump through the connector 4, and inject 2.0-2.5Mpa of high pressure into the sealing rubber bag 1;

[0053] S7. Control the vulcanizer through the vulcanizer control platform, heat the combined sealing rubber bag through the heating system, and heat it up to 100℃-200℃ at an average speed within 60-120min under an ambient pressure of 2.0-2.5Mpa, then keep it at a constant pressure and temperature for 30-60min, and finally cool it down to room temperature at an average speed within 30-300min under a constant pressure environment through the cooling system, and disassemble the mold and side baffle;

[0054] S8, taking out the formed rubber bag, injecting the filler melt into the formed rubber bag 1 through the connector 4, so that the filler and the liquid in the rubber bag 1 fuse and react with each other to form a fluid, and the fluid flows out through the connector 4 of the rubber bag 1;

[0055] S9, sealing test, inject high-pressure water into the rubber bag 1 through the connector 4 to observe whether there is any leakage;

[0056] S10, the qualified sealing bag 1 is bonded to the surfaces of the upper guard plate 2 and the lower guard plate 3 by means of high temperature resistant adhesive, or positioned by contact and overlapping positioning;

[0057] S11. Assembly completed and storage.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising a reference structure" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manufacturing process for a pure rubber water-gas dual-purpose pressure structure for a vulcanizer, The pure rubber water-gas dual-purpose pressure structure for a vulcanizer comprises a rubber bag, wherein an upper guard plate and a lower guard plate are respectively arranged on the top and bottom of the rubber bag, and a connector is arranged at the water guide port of the rubber bag; The rubber bag is composed of a woven fabric layer, an outer rubber layer and an inner rubber layer, wherein the woven fabric layer is sandwiched between the outer rubber layer and the inner rubber layer; The thickness of the fabric layer ranges from 1 to 3 mm; The thickness of the outer rubber layer is smaller than that of the inner rubber layer, the thickness of the outer rubber layer is in the range of 1-3 mm, and the thickness of the inner rubber layer is in the range of 3-6 mm, and the outer rubber layer and the inner rubber layer completely cover and glue the sandwiched woven fabric layer; The overall thickness of the rubber bag is 20-25 mm; The upper guard plate and the lower guard plate completely cover the top and bottom surfaces of the rubber bag, and the upper guard plate and the lower guard plate are in full contact with the rubber bag; The connector and the rubber bag are integrally formed; Features: The manufacturing process includes the following steps: S1. Cut the rubber layer and fabric cloth according to production needs. The bottom rubber layer is the outer rubber layer, the middle one is the woven fabric layer, and the top rubber layer is the inner rubber layer. The inner rubber layer, woven fabric layer and outer rubber layer are overlapped flush with each other. S2. Anti-adhesion grease or high temperature resistant oil paper is applied to the surface of the inner rubber layer. The edges of the inner rubber layer, the fabric layer and the outer rubber layer of the rubber bag are overlapped and bonded to form a closed rubber bag with a protruding air guide port. S3, placing the combined closed rubber bag on a vulcanizing mold of a flat vulcanizing machine, filling the combined rubber bag with materials, and adjusting the side baffles on the vulcanizing mold to baffle the four sides of the combined sealed rubber bag; S4, insert the connector into the inner side of the sealing rubber bag through the air guide port, place the inlet of the connector outside, and fix the connector to the air guide port of the sealing rubber bag using a fixing splint; S5. Use the upper mold of the vulcanizer to press the closed rubber bag placed on the vulcanization mold to form a closed pressed cavity. At this time, the upper mold contacts and fits the top surface of the sealed rubber bag filled with the material, and the side baffle contacts and fits the four sides of the sealed rubber bag; S6. Connect the high-pressure air pump through the connector and inject 2.0-2.5Mpa of high pressure into the sealed rubber bag; S7. Control the vulcanizer through the vulcanizer control platform, heat the combined sealing rubber bag through the heating system, and heat it up to 100℃-200℃ at an average speed within 60-120min under an ambient pressure of 2.0-2.5Mpa, then keep it at a constant pressure and temperature for 30-60min, and finally cool it down to room temperature at an average speed within 30-300min under a constant pressure environment through the cooling system, and disassemble the mold and side baffle; S8, taking out the formed rubber bag, injecting filler melt liquid into the formed rubber bag through the connector, so that the filler and liquid in the rubber bag fuse and react with each other to form a fluid, and the fluid flows out through the connector of the rubber bag; S9, sealing test, inject high-pressure water into the rubber bag through the connector to observe whether there is any leakage; S10, the qualified sealing bag is bonded to the surfaces of the upper guard plate and the lower guard plate by means of high temperature resistant adhesive, or positioned by means of contact and overlapping positioning; S11. Assembly completed and storage.

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