A continuous vulcanization system and process for high-temperature-resistant rubber plates of a solar laminator

Abstract

The application provides a continuous vulcanization system and process for a high-temperature-resistant rubber plate of a solar laminating machine, comprising: successively arranged extruders, a first roller set, a drum vulcanizer, a second roller set, a flat plate vulcanizer and a coiling device, the first roller set comprises at least two cooling buffer rollers, the second roller set comprises at least two static buffer rollers, a liftable dynamic buffer roller is arranged between adjacent static buffer rollers, the rubber plate preliminarily shaped and vulcanized by the drum vulcanizer is staggered between the dynamic and static buffer rollers, when waiting for vulcanization by the flat plate vulcanizer, the dynamic buffer roller is lowered to store the rubber plate, after vulcanization, the rubber plate is pulled forward, and the dynamic buffer roller is raised. Process steps: preforming, cooling buffering, drum vulcanization, dynamic buffering, flat plate vulcanization and coiling. The process integration of the drum vulcanizer and the flat plate vulcanizer greatly improves the automation degree of rubber plate production, improves the production efficiency and shortens the process cycle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber product preparation, in particular to a continuous vulcanization system and process for high-temperature-resistant rubber plate of a solar laminating machine. BACKGROUND

[0002] The rubber plate is a sheet-shaped product with a certain width, thickness and length, which is made of rubber as the main material and various auxiliary materials, and is vulcanized by a flat plate vulcanizing agent or a drum vulcanizing machine. It is commonly known as a rubber plate. The rubber plate has a certain hardness, elasticity and good tensile tear performance, as well as special properties such as oil resistance and heat resistance insulation, and is widely used in shock absorption, sealing, machinery and equipment, and ground table.

[0003] Whether it is a drum vulcanizing machine or a flat plate vulcanizing machine, as an important forming equipment for vulcanized rubber plate, they have their own advantages and disadvantages: the advantages of the drum vulcanizing machine are continuous vulcanization, uniform thickness, no joint marks and sulfur marks, low labor intensity, and can realize continuous automatic production. The disadvantages are low production efficiency, poor product density, low physical and mechanical properties, short service life, high operation difficulty, high maintenance cost, and not suitable for vulcanizing thicker rubber plates and tapes over 5mm; the advantages of the flat plate vulcanizing machine are large vulcanization pressure, high product density, good physical and mechanical properties, long service life, smooth rubber plate surface, high production efficiency, and can produce relatively thick rubber plates. The disadvantages are that it needs to be vulcanized in sections, and there are marks and sulfur marks at the repeated vulcanization joints, the thickness at the joint is prone to deviation and bulging, the labor intensity is high, and it is easily affected by non-standard operation of the operator, and cannot realize continuous automatic production.

[0004] In the prior art, the three-roll calender is used to match the production of rubber plates by the drum vulcanizing machine. The rubber plates with specified thickness and width obtained by the calender are vulcanized by the drum vulcanizing machine to obtain rubber plates. Since it is continuous calendering and continuous vulcanization, the obtained rubber plates have no problems such as sulfur marks, joint marks and bulging. However, the drum vulcanizing machine cannot provide sufficient vulcanization pressure to ensure the density of the rubber plate.

[0005] In the prior art, the extruder is used to match the production of rubber plates by the flat plate vulcanizing machine. The semi-finished rubber plates extruded through the die of the extruder are vulcanized in sections by the flat plate vulcanizing machine to obtain rubber plates. Since it is extrusion molding, the rubber plates have the advantages of high density and stable size. However, the flat plate vulcanizing machine has the disadvantage that it is prone to have marks and sulfur marks at the repeated vulcanization joints.

[0006] Therefore, it is considered to organically combine the drum vulcanizing machine and the flat plate vulcanizing machine, take the advantages and make up for the disadvantages, and improve the vulcanization system and process to realize the automation of vulcanized rubber plates, reduce the labor intensity, and improve the production efficiency. SUMMARY

[0007] The application provides a continuous vulcanization system and process for high-temperature-resistant rubber plates of a solar laminating machine.

[0008] One of the technical solutions adopted by the application is to provide a continuous vulcanization system for high-temperature-resistant rubber plates of a solar laminating machine, comprising: an extruder, a first roller group, a drum vulcanizing machine, a second roller group, a flat plate vulcanizing machine and a curling device arranged in sequence, the first roller group comprises at least two cooling buffer rollers, each cooling buffer roller is arranged in an upper and lower staggered manner, the zigzag-shaped semi-finished rubber plate extruded by the extruder slowly runs between the cooling buffer rollers, and the extrusion expansion stress and shrinkage are eliminated while cooling, the second roller group comprises at least two static buffer rollers, a liftable dynamic buffer roller is arranged between adjacent static buffer rollers, the rubber plate preliminarily shaped and vulcanized by the drum vulcanizing machine is staggered between the dynamic and static buffer rollers, the dynamic buffer roller is lowered to store the rubber plate when waiting for vulcanization by the flat plate vulcanizing machine, and the rubber plate is pulled forward after vulcanization is completed, and the dynamic buffer roller is raised.

[0009] Further, the second roller group comprises symmetrically arranged roller frames for supporting the dynamic and static buffer rollers, the static buffer rollers are connected to the roller frames on both sides through static bearing seats and can rotate in the static bearing seats, the dynamic buffer rollers are connected to the roller frames on both sides through dynamic bearing seats and can rotate in the dynamic bearing seats, and the dynamic bearing seats are slidably arranged on the roller frames and can be lifted.

[0010] Further, a plurality of vertical long holes are arranged on the roller frame, the static bearing seat is provided with a threaded rod arranged in the long hole, the static bearing seat is locked in the long hole through a nut, the setting height of the static buffer roller can be adjusted, the dynamic bearing seat is provided with a sliding rod arranged in the long hole, the dynamic buffer roller can be raised or lowered along the long hole, and a detachable limiting block is further arranged in the long hole to limit the lowered position of the dynamic buffer roller.

[0011] Further, a plurality of connecting holes are uniformly arranged on the roller frame, the static bearing seat is provided with a connecting part, the connecting part is fixed to the roller frame through a bolt, the height of the static buffer roller can be set according to the height of the extrusion outlet of the extruder, a vertical sliding rail is further arranged on the roller frame, the sliding rail is provided with a through hole and is also fixed to the roller frame through a bolt, the sliding rail is arranged between the two static buffer rollers, the dynamic bearing seat is slidably arranged on the sliding rail and can be lifted, and a detachable limiting block is further arranged on the sliding rail to limit the lowered position of the dynamic buffer roller.

[0012] Another technical solution adopted by the application is to provide a continuous vulcanization process for high-temperature-resistant rubber plates of a solar laminating machine, comprising the following steps:

[0013] S1, preforming: sending prepared rubber compound into an extruder for preforming to obtain a semi-finished rubber plate;

[0014] S2, cooling buffer: the extruded semi-finished rubber plate enters the first roller group, slowly runs between the cooling buffer rollers, eliminates the extrusion stress and shrinkage;

[0015] S3, drum vulcanization: the size-stable semi-finished rubber plate is introduced into the drum vulcanization machine for preliminary shaping vulcanization, so that the vulcanization degree and crosslinking density of the rubber plate reach 50-60% of complete vulcanization, and a substantially shaped rubber plate is obtained;

[0016] S4, dynamic buffer: the substantially shaped rubber plate enters the second roller group, runs between the static buffer rollers and the dynamic buffer rollers, and according to the running state of the flat vulcanization machine, the dynamic buffer rollers store the rubber plate downward or release the rubber plate upward;

[0017] S5, flat vulcanization: the released substantially shaped rubber plate is pulled to the flat vulcanization machine for secondary pressure vulcanization, so that the vulcanization degree and crosslinking density of the rubber plate are increased to complete vulcanization, and the compactness of the rubber plate is also increased, and a finished rubber plate is obtained;

[0018] S6, curling: according to the running state of the flat vulcanization machine, the curling device waits or pulls the curled rubber plate.

[0019] Further, in the drum vulcanization, the vulcanization temperature of the drum vulcanization machine is controlled at 150℃±10℃, the vulcanization time is controlled at 12±2 minutes, and the steel belt tensioning pressure is controlled at 5-8KGF.

[0020] Further, in the flat vulcanization, the vulcanization temperature of the flat vulcanization machine is controlled at 170-180℃, the vulcanization time is controlled at 6-8 minutes, and the vulcanization pressure is controlled at 15-20MPa.

[0021] Further, in the flat vulcanization, the vulcanized rubber plate is pulled forward, and the tail is stopped at a position of 15-20cm close to the head of the flat plate for vulcanization of the next mold, and the process is repeated until all the rubber plates are vulcanized.

[0022] The continuous vulcanization system and process of the high-temperature-resistant rubber plate of the solar laminating machine have the following advantages:

[0023] 1. The process integration of the drum vulcanization machine and the flat vulcanization machine has a good complementary effect. The secondary supplemental vulcanization by the flat vulcanization machine makes up for the poor compactness and light crosslinking degree of the rubber plate vulcanized by the drum vulcanization machine, and because of the preliminary shaping vulcanization by the drum vulcanization machine, there is no phenomenon of drum unevenness caused by vulcanization marks during the transition of each mold vulcanization in the subsequent supplemental vulcanization by the flat vulcanization machine;

[0024] 2. After process integration, the traction of rubber sheets is carried out by the curling device in conjunction with the vulcanization action of the flat vulcanizing machine, which greatly improves the automation level of rubber sheet production, reduces labor intensity, and eliminates the need for secondary vulcanization treatment after conventional vulcanization by the secondary pressure supplementation vulcanization of the flat vulcanizing machine, thereby improving production efficiency, shortening the process cycle, and increasing the product qualification rate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the traction state of a continuous vulcanization system for a high-temperature resistant rubber sheet in a solar laminator according to the first embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the buffer state of a continuous vulcanization system for a high-temperature resistant rubber sheet in a solar laminator according to the first embodiment of the present invention;

[0027] The components in the attached diagram are labeled as follows: 1. Extruder, 2. First idler roller group, 3. Drum vulcanizing machine, 4. Second idler roller group, 5. Flat vulcanizing machine, 6. Coiling device, 21. Cooling buffer roller, 41. Static buffer roller, 42. Dynamic buffer roller. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "horizontal", "vertical", "inner", "outer", 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 invention, and do not indicate or imply that the components or elements 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 invention.

[0030] Please see Figure 1 and Figure 2 The first embodiment of the present invention provides a continuous vulcanization system for high-temperature resistant rubber sheets for solar laminators, comprising: an extruder 1, a first roller group 2, a drum vulcanizer 3, a second roller group 4, a flat vulcanizer 5, and a coiling device 6 arranged in sequence;

[0031] Extruder 1 extrudes semi-finished rubber sheets according to the required sheet size by the customer;

[0032] The first roller group 2 comprises four cooling buffer rollers 21, each of which is arranged in an up-down staggered manner, and the extruded semi-formed rubber plate is zigzag slowly run between the cooling buffer rollers 21, so as to eliminate the extrusion expansion stress and shrinkage while being cooled, and ensure the stability of the size of the extruded rubber plate, and the semi-formed rubber plate after being cooled and stabilized in size is brought into the drum vulcanizer 3;

[0033] The second roller group 4 comprises four static buffer rollers 41, and a liftable dynamic buffer roller 42 is arranged between adjacent static buffer rollers 41, the rubber plate preliminarily shaped and vulcanized by the drum vulcanizer 3 is staggered run between the dynamic and static buffer rollers 41, and the dynamic buffer roller 42 is lowered to store the rubber plate when waiting for vulcanization by the flat vulcanizer 5, the rubber plate is pulled forward after vulcanization is completed, the dynamic buffer roller 42 is raised, and the flat vulcanizer 5 vulcanizes the next mold;

[0034] The curling device 6 waits when the flat vulcanizer 5 is vulcanized, and pulls and curls the finished rubber plate after vulcanization is completed.

[0035] Specifically, the semi-formed rubber plate cooled and buffered by the first roller group 2 is slowly guided into the traction roller of the drum vulcanizer 3 by the guide belt, the steel belt tension is adjusted to a suitable pressure, and the semi-formed rubber plate is vulcanized through a series of devices such as a vulcanizing drum, an adjusting roller, a stretching roller, a pressure steel belt and a tensioning device.

[0036] The second roller group 4 comprises symmetrically arranged roller frames for supporting the dynamic and static buffer rollers 41, the static buffer rollers 41 are connected to the two side roller frames through static bearing seats and can rotate in the static bearing seats, the dynamic buffer roller 42 is connected to the two side roller frames through a dynamic bearing seat and can rotate in the dynamic bearing seat, and the dynamic bearing seat is slidably arranged on the roller frame and can be lifted.

[0037] Specifically, seven vertical long holes are arranged on the roller frame, the static bearing seat is provided with a threaded rod arranged in the long hole, the static bearing seat is locked in the long hole through a nut, the setting height of the static buffer roller 41 can be adjusted to adapt to the platform height of the flat vulcanizer 5, and the dynamic bearing seat is provided with a sliding rod arranged in the long hole, and the dynamic buffer roller 42 can be raised or lowered along the long hole.

[0038] Specifically, a detachable limiting block is further arranged in the long hole, and the lowering position of the dynamic buffer roller 42 can be limited.

[0039] The first embodiment of the present application provides a continuous vulcanization process of a high-temperature-resistant rubber plate of a solar laminating machine, comprising the following steps:

[0040] S1, preforming: sending the prepared rubber compound into an extruder for preforming to obtain a semi-formed rubber plate;

[0041] S2, cooling buffer: the extruded semi-finished rubber plate enters the first roller group, slowly runs between the cooling buffer rollers, eliminates the extrusion stress and shrinkage;

[0042] S3, drum vulcanization: the size-stable semi-finished rubber plate is introduced into the drum vulcanization machine for preliminary shaping vulcanization, the vulcanization temperature of the drum vulcanization machine is controlled at 150 DEG C ± 10 DEG C, the vulcanization time is controlled at 12 ± 2 minutes, the steel belt tensioning pressure is controlled at 5-8 KGF, so that the vulcanization degree and crosslinking density of the rubber plate reach 50-60% of complete vulcanization, and the substantially shaped rubber plate is obtained;

[0043] S4, dynamic buffer: the substantially shaped rubber plate enters the second roller group, runs between the static buffer roller and the dynamic buffer roller, according to the running state of the flat plate vulcanization machine, the dynamic buffer roller stores the rubber plate downward or releases the rubber plate upward;

[0044] S5, flat plate vulcanization: the released substantially shaped rubber plate is pulled to the flat plate vulcanization machine for secondary pressure vulcanization, the vulcanization temperature of the flat plate vulcanization machine is controlled at 170-180 DEG C, the vulcanization time is controlled at 6-8 minutes, the vulcanization pressure is controlled at 15-20 MPa, the vulcanization degree and crosslinking density of the rubber plate are increased to complete vulcanization, and the compactness of the rubber plate is also increased, so that the finished rubber plate is obtained;

[0045] S6, curling: according to the running state of the flat plate vulcanization machine, the curling device waits or pulls the curled rubber plate.

[0046] Specifically, in the flat plate vulcanization, the vulcanized rubber plate is pulled forward, and the tail is stopped at a position of 15-20 cm close to the head of the flat plate for vulcanization of the next mold, and the process is repeated until all the rubber plates are vulcanized.

[0047] In another embodiment of the present application, only part of the structure of the roller frame and the dynamic and static bearing seat is changed, the roller frame is provided with uniformly distributed connecting holes, the static bearing seat has a connecting part, the connecting part is fixed to the roller frame through bolts, the height of the static buffer roller can be set according to the height of the extrusion port of the extruder, the roller frame is also provided with a vertical sliding rail, the sliding rail has a through hole and is also fixed to the roller frame through bolts, the sliding rail is arranged between the two static buffer rollers, the dynamic bearing seat is slidably arranged on the sliding rail and can be lifted and lowered, and the sliding rail is also provided with a detachable limiting block which can limit the downward position of the dynamic buffer roller.

[0048] The rest of the design is the same as the first embodiment.

[0049] The continuous vulcanization system and process of the high-temperature-resistant rubber plate of the solar laminating machine have the following beneficial effects:

[0050] 1. The process integration of drum vulcanizing machine and flat vulcanizing machine has good complementary effect, the secondary supplemental vulcanization by flat vulcanizing machine makes up the poor compactness of vulcanized rubber plate and the light vulcanization crosslinking degree of drum vulcanizing machine, and because of the preliminary setting vulcanization of drum vulcanizing machine, the phenomenon of unevenness caused by vulcanization mark and drum during the transition of vulcanization per mold does not occur during the subsequent supplemental vulcanization of flat vulcanizing machine;

[0051] 2. The process integration greatly improves the automation degree of rubber plate production, reduces the work intensity of employees, the secondary supplemental vulcanization by flat vulcanizing machine also saves the secondary vulcanization treatment after conventional vulcanization, improves the production efficiency, shortens the process cycle and improves the qualified rate of products.

[0052] The above description is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent flow transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A continuous vulcanization system for high temperature resistant rubber sheets for solar laminators, characterized in that, The continuous vulcanization system comprises an extruder, a first group of supporting rollers, a drum vulcanization machine, a second group of supporting rollers, a flat plate vulcanization machine and a curling device arranged in sequence. The second group of supporting rollers comprises symmetrically arranged supporting roller frames for supporting the static and dynamic buffer rollers. The long hole is further provided with a detachable limiting block to limit the downward position of the dynamic buffer roller.

2. The continuous vulcanization system of the high-temperature-resistant rubber plate of a solar laminator according to claim 1, characterized in that, The slide rail is further provided with a detachable limiting block to limit the downward position of the dynamic buffer roller.

3. The continuous vulcanization system of a high-temperature-resistant rubber plate of a solar laminator according to claim 1, characterized in that, The continuous vulcanization system comprises the following steps:

4. A continuous vulcanization process of high temperature resistant rubber sheet for solar laminator characterized in that, S1, preforming: sending prepared rubber compound into the extruder for preforming to obtain a semi-formed rubber sheet; S2, cooling buffering: the extruded semi-formed rubber sheet enters the first group of supporting rollers and slowly runs between the cooling buffer rollers to eliminate extrusion stress and shrinkage; S3, drum vulcanization: the size-stable semi-formed rubber sheet is introduced into the drum vulcanization machine for preliminary shaping and vulcanization, so that the vulcanization degree and crosslinking density of the rubber sheet reach 50-60% of complete vulcanization, and a substantially shaped rubber sheet is obtained; S4, dynamic buffering: the substantially shaped rubber sheet enters the second group of supporting rollers and runs between the static buffer rollers and the dynamic buffer rollers, and the dynamic buffer roller is lowered to store the rubber sheet or is raised to release the rubber sheet according to the running state of the flat plate vulcanization machine; S5, flat plate vulcanization: the released substantially shaped rubber sheet is pulled to the flat plate vulcanization machine for secondary pressure vulcanization to improve the vulcanization degree and crosslinking density of the rubber sheet to complete vulcanization, and to improve the compactness of the rubber sheet, and a finished rubber sheet is obtained; S6, curling: the curling device waits or pulls the curled rubber sheet according to the running state of the flat plate vulcanization machine. ​ 5. A continuous vulcanization process of high temperature resistant rubber sheet for solar laminator as claimed in claim 4, wherein, In the drum vulcanization, the vulcanization temperature of the drum vulcanization machine is controlled at 150℃±10℃, the vulcanization time is controlled at 12±2 minutes, and the steel belt tensioning pressure is controlled at 5-8KGF.

6. A continuous vulcanization process of high temperature resistant rubber sheet for solar laminator as claimed in claim 4, wherein, In the flat plate vulcanization, the vulcanization temperature of the flat plate vulcanization machine is controlled at 170-180℃, the vulcanization time is controlled at 6-8 minutes, and the vulcanization pressure is controlled at 15-20MPa.

7. A continuous vulcanization process of high temperature resistant rubber sheet for solar laminator as claimed in claim 6 wherein, In the flat plate vulcanization, the vulcanized rubber plate is pulled forward, and the tail is stopped at a position of 15-20cm away from the head of the flat plate for the vulcanization of the next mold, and the process is repeated until all the rubber plates are vulcanized.

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