Continuous cooling device for rubber mixing film

Abstract

The utility model relates to a continuous cooling device for a rubber mixing film, which comprises a cooling water tank, a cooling water pipe, a cooling water pipe, a cooling water pipe, a cooling water pipe, a cooling water pipe and a cooling water pipe, and is characterized in that one end of the cooling water tank is a film feeding end; the multiple rotating rollers are arranged in the cooling water tank in an up-down staggered mode, and the rotating rollers are used for bearing and driving the film to advance towards the film discharging end; the output end of the traction motor is connected with the rotating roller; and the cooling water circulation assembly is connected with the cooling water tank. Mechanical transmission traction is adopted, the cooling water tank, the rotating rollers and the cooling water circulation assembly are integrated, meanwhile, the rotating rollers are arranged in an up-and-down staggered mode, the cooling effect of mixed rubber sheets is remarkably improved, and then the product yield of the mixed rubber sheets is improved.

Description

Technical Field

[0001] The utility model relates to a cooling device, in particular to a continuous cooling device for rubber mixing sheets. Background Art

[0002] The rubber industry occupies an important position in the national economic production. Rubber is also an important strategic reserve material of the country and is widely used in many fields such as national defense and military industry, aerospace, ships and vessels, automotive construction, machinery and equipment, industrial and civil use, etc. It is subdivided into industries such as tires, rubber hoses and belts, shock absorption and sealing, rubber sheets, rubber shoes and rubber fabrics.

[0003] However, no matter what rubber subdivision industry, it needs to go through several necessary and important processing procedures such as mixing processing and vulcanization molding. Finally, according to the product characteristics and molding characteristics, it is divided into rubber products such as tires, rubber sheets, belts, rubber shoes, shock absorption and sealing.

[0004] In the rubber mixing processing stage, it is divided into the A mixing stage and the B mixing and sulfur addition stage. After mixing by an internal mixer and rolling and sheeting by an open mill, it is necessary to cool down the A mixing or B mixing. For the A mixing, it is necessary to go through the cooling process to prevent the A mixing from sticking together due to high temperature and being unable to be torn apart, which brings great processing difficulty and labor intensity to the subsequent sulfur addition process and seriously affects the production efficiency. For the B mixing, if it is not cooled effectively and quickly, the rubber compound added with sulfur accelerant will further undergo chemical reactions at high temperature, resulting in the inability to carry out the subsequent vulcanization process of the B mixing, the premature vulcanization and crosslinking of the B mixing, the occurrence of the B mixing burning and scorching and the scrapping of the produced B mixing sulfurized rubber compound, causing great economic losses to the factory and seriously affecting the production plan and production progress.

[0005] Precisely because it is necessary to cool the mixed rubber or semi-finished product in the processes such as mixing processing, extrusion and filtration to prevent problems such as premature vulcanization and crosslinking and scorching of the rubber compound in the subsequent processes such as extrusion and vulcanization, a cooling water tank needs to be equipped behind the processes of the open mill, filter press and extruder to quickly cool down the mixed rubber or the sulfurized rubber compound after filtration. To fully cool the mixed rubber, it is necessary to ensure that the cooling time of the mixed rubber in the cooling water tank is long enough and the water temperature is as low as possible. This requires the cooling water tank to be long enough to ensure the cooling time of the mixed rubber and good cooling effect.

[0006] In addition, after the cooling water tank has been used for a long time, some broken rubber materials and separating agents will accumulate and precipitate in the tank. The separating agent is added to achieve better cooling and separation effects on the rubber sheets, preventing the rubber sheets from sticking together. However, after a long time, some separating agents will precipitate. Therefore, it is necessary to clean the cooling water tank regularly. Then, the cleaning of the separating agent and how to avoid the precipitation of the separating agent are also problems that need to be solved urgently. Summary of the Utility Model

[0007] The purpose of the present utility model is to provide a continuous cooling device for rubber mixed sheets, which solves the problem of poor cooling effect of the mixed sheets in the prior art.

[0008] To achieve the above purpose, the technical solution adopted by the present utility model is:

[0009] The present utility model provides a continuous cooling device for rubber mixed sheets, including:

[0010] A cooling water tank, one end of the cooling water tank is the sheet feeding end, and the other end of the cooling water tank is the sheet discharging end;

[0011] Rollers, a plurality of the rollers are arranged up and down and staggered in the cooling water tank, and the rollers are used to support and drive the sheets to travel towards the sheet discharging end;

[0012] A traction motor, the output end of the traction motor is connected to the rollers;

[0013] A cooling water circulation component, the cooling water circulation component is connected to the cooling water tank.

[0014] Further, the rollers include upper rollers and lower rollers. The upper rollers are arranged at a height of 2 / 3 from the bottom of the cooling water tank, and the lower rollers are arranged at a height of 1 / 3 from the bottom of the cooling water tank, and the upper rollers are located above the middle position between two adjacent lower rollers.

[0015] Further, the rollers arranged at the inner edge of the cooling water tank are 20 - 40 cm away from the inner edge of the cooling water tank.

[0016] Further, the cooling water circulation component includes a refrigerating machine. The water inlet of the refrigerating machine is connected to the water outlet of the cooling water tank through an outlet pipe, and the water outlet of the refrigerating machine is connected to the water inlet of the cooling water tank through an inlet pipe.

[0017] Further, filter nets are respectively arranged at the water outlet and the water inlet of the cooling water tank.

[0018] Further, stop valves are respectively arranged on the outlet pipe and the inlet pipe.

[0019] Further, the bottom surface of the cooling water tank is inclined with one end higher and the other end lower. A drain outlet is provided at the lower end of the bottom surface of the cooling water tank. A drain pipe is connected to the drain outlet, and a drain valve is provided on the drain pipe. A filter screen is provided at the drain outlet.

[0020] Further, a stirring air pipe is also arranged at the bottom of the cooling water tank. A plurality of air outlet holes are formed on the stirring air pipe. One end of the stirring air pipe is connected to an external air source through an air inlet pipe, and an air inlet valve is provided on the air inlet pipe.

[0021] A plurality of cooling rollers are arranged above the cooling water tank. The cooling rollers are used to receive the film cooled by the cooling water tank and perform secondary cooling and moisture volatilization on the film.

[0022] Further, a guiding conveyor belt is arranged at the film feeding end, and a traction conveyor belt is arranged at the film discharging end.

[0023] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art:

[0024] A continuous cooling device for rubber mixed film in the present utility model adopts mechanical transmission traction, integrates a cooling water tank, rotating rollers and a cooling water circulation component, and at the same time arranges the rotating rollers in an upper and lower staggered manner, significantly improving the cooling effect of the mixed film, and further improving the product yield of the mixed film. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Some specific embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0026] Figure 1 is a schematic structural diagram of a continuous cooling device for rubber mixed film provided by the present utility model;

[0027] Figure 2 is a side view of the continuous cooling device for rubber mixed film provided by the present utility model;

[0028] Among them, the reference numerals are explained as follows:

[0029] 1. Cooling water tank; 101. Drain outlet; 102. Drain pipe; 103. Drain valve; 2. Rotating roller; 201. Upper rotating roller; 202. Lower rotating roller; 3. Cooling water circulation component; 301. Refrigerator; 3010. Water outlet pipe; 3011. Water inlet pipe; 3012. Stop valve; 4. Filter screen; 5. Stirring air pipe; 501. Air outlet hole; 6. Cooling roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] Refer to Figure 1 , the continuous cooling device for rubber mixing sheets includes a cooling water tank 1, a rotating roller 2, a traction motor and a cooling water circulation component 3.

[0032] One end of the aforementioned cooling water tank 1 is the sheet feeding end, and the other end is the sheet discharging end. A guiding conveyor belt is arranged at the sheet feeding end, and a traction conveyor belt is arranged at the sheet discharging end. By means of the guiding and traction effects of the guiding conveyor belt and the traction conveyor belt on the sheet, the rotational friction between the sheet and the rotating roller 2, and the driving force of the traction motor on the rotating roller 2, the mixed rubber sheet travels from the sheet feeding end to the sheet discharging end to complete the cooling operation, and then is transferred to the next process. For this cooling water tank 1, in the present utility model, the cooling water tank 1 is set to be 0.5 - 1.0 m wide, 1.5 - 2.5 m long, and 0.6 - 1.2 m high. Of course, in actual practice, the size of the cooling water tank 1 can be reasonably adjusted and arranged according to actual needs and space size, as long as the cooling effect of the mixed rubber sheet can be ensured.

[0033] In addition, in the embodiment of the present utility model, in order to facilitate the cleaning and flushing of the cooling water tank 1 and the discharge of the cooling water, the bottom surface of the cooling water tank 1 is set to be inclined with one end high and the other end low, forming an inclination angle. And a drain port 101 is provided at the lower end. The drain port 101 is connected to the outside through a drain pipe 102, and a drain valve 103 is provided on the drain pipe 102. Utilizing the principle that water flows to lower places, it becomes more convenient to clean the cooling water tank 1. A filter screen 4 is also provided at the aforementioned drain port 101 for filtering impurities (such as broken rubber materials) in the cooling water tank 1 to prevent clogging of the drain valve 103. The higher end is connected to the cooling water circulation component 3. In the present utility model, the above inclination angle is controlled within 3 - 5°, but it is not limited to only being set to the above angle, and the specific setting can be adjusted according to actual situations.

[0034] Inside the cooling water tank 1, a number of rotating rollers 2 are arranged in a staggered manner up and down to support and drive the kneaded rubber sheet towards the rubber sheet discharging end. The aforementioned rotating roller 2 is connected to the output end of the traction motor, and the traction motor provides driving force for the rotating roller 2. Compared with the conventional method of driving the rotating roller 2 by a motor through chain drive, the rotating roller 2 in the present utility model operates smoothly and is not prone to jamming. In addition, the number of the above-mentioned rotating rollers 2 can also be increased or decreased according to actual needs, as long as it can play a good supporting and conveying function for the kneaded rubber sheet.

[0035] Specifically, the above-mentioned rotating roller 2 includes an upper rotating roller 201 and a lower rotating roller 202. In the present utility model, the aforementioned upper rotating roller 201 is arranged at a position 2 / 3 of the height from the bottom of the cooling water tank 1, and the lower rotating roller 202 is arranged at a position 1 / 3 of the height from the bottom of the cooling water tank 1, so that the above-mentioned upper rotating roller 201 and lower rotating roller 202 are arranged evenly. Moreover, the above-mentioned upper rotating roller 201 is arranged above the middle position between two adjacent lower rotating rollers 202 to ensure the smooth progress of the rubber sheet.

[0036] In addition, in the embodiment of the present utility model, the rotating roller 2 arranged near the inner edge of the cooling water tank 1 is arranged at a distance of 20 - 40 cm from the inner edge of the cooling water tank 1, correspondingly extending the residence time of the rubber sheet inside the cooling water tank 1, facilitating the rubber sheet to have sufficient and full cooling time during the process of moving towards the rubber sheet discharging end, and thus improving the cooling effect.

[0037] In the embodiment of the present utility model, the rotating rollers 2 adopted are all of a closed self-lubricating bearing configuration. The closed structure can prevent external pollutants (such as dust, moisture, etc.) from entering the bearing interior, thereby improving the reliability and service life of the bearing. And the friction coefficient of the self-lubricating material is usually low, which can effectively reduce friction and wear, thereby improving the mechanical efficiency. During the operation process, the self-lubricating bearing can usually reduce noise, and thus improve the working environment.

[0038] In addition, since the rotating rollers 2 are arranged in a staggered up-and-down manner, during actual cooling, the cooling time and the rotating rollers to be operated can be adjusted according to the current environmental factors, the condition of the film itself, and actual needs. For example, in winter, due to the low temperature in winter, the film can be cooled simply on the upper rotating roller 201 or on the lower rotating roller 202, without using the method of interspersed cooling operation of the upper rotating roller 201 and the lower rotating roller 202. If it is in summer, in order to achieve a good film cooling effect, the aforementioned method of interspersed cooling operation of the upper rotating roller 201 and the lower rotating roller 202 is usually adopted. However, during the interspersed cooling operation, since the upper rotating roller 201 and the lower rotating roller 202 are arranged in a staggered up-and-down manner, and the arrangement quantity of the upper rotating roller 201 and the lower rotating roller 202 can be adjusted adaptively, there are various methods for the aforementioned interspersed cooling operation. It can be to bypass one or several of the arranged upper rotating rollers 201 or lower rotating rollers 202 for interspersed cooling operation. Of course, no matter what kind of interspersed cooling operation method is adopted, it is also necessary to make a reasonable arrangement according to the actual cooling time required for the film.

[0039] Regarding the aforementioned cooling water circulation component 3, it includes a refrigerator 301. The water inlet of the refrigerator 301 is connected to the water outlet of the cooling water tank 1 through the water outlet pipe 3010, and the water outlet of the refrigerator 301 is connected to the water inlet of the cooling water tank 1 through the water inlet pipe 3011. Stop valves 3012 are provided on both the aforementioned water outlet pipe 3010 and the water inlet pipe 3011. A cooling water circulation loop is formed between the refrigerator 301 and the cooling water tank 1. When the temperature of the cooling water in the cooling water tank 1 is not sufficient to reach the cooling temperature required for the film or the cooling water has been used for too long, the cooling water in the cooling water tank 1 can be introduced into the refrigerator 301 for refrigeration through the water outlet pipe 3010 by synchronously opening the stop valve on the water outlet pipe 3010. When the cooling water in the refrigerator 301 is cooled to the target temperature, the cooled cooling water is introduced into the cooling water tank 1 for recycling through the aforementioned water inlet pipe 3011 by synchronously opening the stop valve on the water inlet pipe 3011. With the addition of this cooling water circulation component 3, a lasting cooling force can be provided for the cooling water tank 1. Of course, it is not limited to the above-mentioned circulating cooling method. It can also be to directly connect the output end of the refrigerator 301 to the cooling water tank 1. At the same time, a temperature sensor can also be provided in the cooling water tank 1. By monitoring the temperature of the cooling water in the cooling water tank 1 with the temperature sensor, the refrigeration signal is transmitted to the refrigerator 301 in a timely manner, thereby achieving constant and continuous cooling.

[0040] In the embodiment of the present utility model, filter meshes 4 are provided at both the water outlet and the water inlet of the cooling water tank 1. Since during the process of cooling the film with cooling water, some separating agents are usually added into the cooling water tank 1 to prevent the film from sticking during the cooling process, so as to achieve the separation effect on the film. Therefore, after a long-time cooling operation, some separating agents and broken rubber materials peeled off from the film will accumulate and precipitate at the bottom of the cooling water tank 1. In order to prevent these waste materials or separating agents from blocking the refrigerating machine 301 and affecting the refrigerating effect, in the present utility model, filter meshes 4 are arranged at both the water outlet and the water inlet of the cooling water tank 1 to carry out partition treatment on the aforementioned waste materials and separating agents.

[0041] In order to prevent the aforementioned added separating agent from precipitating and to facilitate the stirring of the separating agent and the cooling water, in the present utility model, a stirring air pipe 5 is arranged at the bottom of the cooling water tank 1, and the traditional way of driving a stirring shaft by a motor is no longer used to stir the separating agent. The length of the stirring air pipe 5 can be adjusted according to the length of the cooling water tank 1 or actual needs. In the embodiment of the present utility model, the stirring air pipe 5 is laid across the bottom of the cooling water tank 1, and a plurality of air outlet holes 501 are formed in the stirring air pipe 5. One end of the stirring air pipe 5 is connected to an external air source through an air inlet pipe, and the external air source provides continuous gas for the stirring air pipe 5, and the gas then jets out from the plurality of air outlet holes 501, thereby achieving the sufficient stirring effect on the separating agent and the cooling water in the cooling water tank 1, and further improving the cooling uniformity of the film at various places.

[0042] In addition, an air inlet valve is further arranged on the aforementioned air inlet pipe, and by controlling the opening degree of the air inlet valve, the flow rate of the air source is adjusted, and further the turning and stirring force on the separating agent and the cooling water is adjusted.

[0043] In the embodiment of the present utility model, referring to Figure 2 , a cooling roller path composed of a plurality of cooling rollers 6 is further erected above the aforementioned cooling water tank 1. When the film is output from the film discharging end of the cooling water tank 1, the film can be transferred to the aforementioned cooling rollers 6 for secondary cooling. While fully cooling the film, the moisture brought out of the cooling water tank 1 by the film can be volatilized and evaporated, which is suitable for the cooling operation in the case of limited space.

[0044] In addition, in the embodiment of the present utility model, the aforementioned cooling roller 6 is set to be detachable, and the overall frame width of the cooling roller 6 is the same as the width of the cooling water tank 1. Moreover, the cooling roller 6 is snap-connected above the cooling water tank 1, and the inner width of its snap groove is slightly larger than the width of the upper end face of the cooling water tank 1 to facilitate installation and disassembly. A threaded hole and a handle bolt are provided in the middle of the snap groove to facilitate manually tightening the bolt to firmly clamp the cooling water tank 1. The operator can decide whether to arrange it above the cooling water tank 1 according to actual needs. And the number of layers and height of the cooling roller 6 can be set according to the actual situation, aiming to make full and reasonable use of the limited space to ensure the best cooling effect and volatilize moisture.

[0045] The above embodiments are only used to illustrate the technical concept and features of the present utility model. The purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A continuous cooling device for rubber mixing sheets, characterized in that, Comprising: A cooling water tank (1), one end of the cooling water tank (1) is the film feeding end, and the other end of the cooling water tank (1) is the film discharging end; Rotating rollers (2), a number of the rotating rollers (2) are arranged vertically and staggered in the cooling water tank (1), and the rotating rollers (2) are used to support and drive the film to travel towards the film discharging end; A traction motor, the output end of the traction motor is connected to the rotating roller (2); A cooling water circulation component (3), the cooling water circulation component (3) is connected to the cooling water tank (1).

2. The continuous cooling device for rubber mixing film according to claim 1, characterized in that, The rotating roller (2) includes an upper rotating roller (201) and a lower rotating roller (202), the upper rotating roller (201) is arranged at a height of 2 / 3 from the bottom of the cooling water tank (1), the lower rotating roller (202) is arranged at a height of 1 / 3 from the bottom of the cooling water tank (1), and the upper rotating roller (201) is located above the middle position between two adjacent lower rotating rollers (202).

3. The continuous cooling device for rubber mixing film according to claim 1, characterized in that The rotating roller (2) arranged at the inner edge of the cooling water tank (1) is 20 - 40 cm away from the inner edge of the cooling water tank (1).

4. A continuous cooling device for rubber mixing sheets according to claim 1, characterized in that, The cooling water circulation component (3) includes a refrigerating machine (301), the water inlet of the refrigerating machine (301) is connected to the water outlet of the cooling water tank (1) through a water outlet pipe (3010), and the water outlet of the refrigerating machine (301) is connected to the water inlet of the cooling water tank (1) through a water inlet pipe (3011).

5. A continuous cooling device for rubber mixing films according to claim 4, characterized in that, Filter meshes (4) are respectively arranged at the water outlet and the water inlet of the cooling water tank (1).

6. A continuous cooling device for rubber mixing films according to claim 4, characterized in that, Stop valves (3012) are respectively arranged on the water outlet pipe (3010) and the water inlet pipe (3011).

7. A continuous cooling device for rubber mixing films according to claim 1, characterized in that The bottom surface of the cooling water tank (1) is inclined with one end high and the other end low, a drain port (101) is arranged at the low end of the bottom surface of the cooling water tank (1), a drain pipe (102) is connected to the drain port (101), a drain valve (103) is arranged on the drain pipe (102), and a filter mesh (4) is arranged at the drain port (101).

8. A continuous cooling device for rubber mixing sheets according to claim 1, characterized in that, A stirring air pipe (5) is further arranged at the bottom of the cooling water tank (1), a number of air outlet holes (501) are opened on the stirring air pipe (5), one end of the stirring air pipe (5) is connected to an external air source through an air inlet pipe, and an air inlet valve is arranged on the air inlet pipe.

9. A continuous cooling device for rubber mixing films according to claim 1, characterized in that, A number of cooling rollers (6) are arranged above the cooling water tank (1), the cooling rollers (6) are used to receive the film cooled by the cooling water tank (1) and perform secondary cooling and moisture volatilization on the film.

10. A continuous cooling device for rubber mixing films according to claim 1, characterized in that, A guiding conveyor belt is arranged at the film feeding end, and a traction conveyor belt is arranged at the film discharging end.

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