Cooling device for ethylene propylene diene monomer production and using method thereof

Abstract

The invention discloses a cooling device for ethylene propylene diene monomer production, which comprises a support table, the support table is provided with a liquid falling port, the lower end of the support table is provided with a plurality of underframes, the upper end of the support table is symmetrically and fixedly connected with two vertical plates, and the upper ends of the two vertical plates are jointly and fixedly connected with a transverse plate; and the cooling mechanism comprises a liquid collecting box arranged on the ground, an air pump is installed on the front side of the vertical plate located on the front side, two U-shaped hollow strips are symmetrically arranged below the transverse plate, a plurality of nozzles are formed in the inner side of each U-shaped hollow strip, and the exhaust end of the air pump communicates with two branch pipes. The invention further discloses a using method of the cooling device for ethylene propylene diene monomer production. In the actual using process of the device, the cooling effect is improved in a water cooling and air cooling mode, and in addition, the heat exchange mechanism is further arranged to be matched with recycling of a water body, so that waste of water resources is reduced.

Description

Technical Field

[0001] The present invention relates to the field of EPDM rubber production, and in particular to a cooling device for EPDM rubber production and a use method thereof. Background Art

[0002] EPDM is a copolymer of ethylene, propylene, and a small amount of non-conjugated dienes. It is a type of EPDM rubber. Because its main chain is composed of chemically stable saturated hydrocarbons and contains unsaturated double bonds only in the side chains, it has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. It can be widely used in automotive parts, building waterproofing materials, wire and cable sheathing, heat-resistant hoses, tapes, automotive seals, etc. During its production process, it needs to be cooled;

[0003] Traditional cooling devices, such as the utility model patent with publication number CN215320026U, disclose a cooling device for EPDM rubber production, including a support frame, a cooling water chamber fixedly welded to the upper end of the support frame, a water inlet pipe fixedly connected to the front end of the cooling water chamber near the lower side, a water outlet pipe fixedly connected to the front end of the cooling water chamber near the side of the water inlet pipe, six groups of first guide rollers are provided inside the cooling water chamber, an air cooling chamber is provided at the upper end of the support frame near the side of the cooling water chamber, and two groups of second guide rollers are installed inside the air cooling chamber near one side. The cooling device for EPDM rubber production described in the utility model can achieve two-stage cooling through this water cooling plus air cooling method, and the cooling effect is more obvious, which can speed up the cooling efficiency, allowing the EPDM rubber belt to quickly enter the next process, thereby improving the efficiency of the entire production. At the same time, this automated cooling method can save a certain amount of labor.

[0004] However, in actual use, we found that the water spraying and air jet parts of the above-mentioned device were in a fixed state during the spraying operation, resulting in the distance between the two nozzles being unable to be sprayed, and the uniformity of the spraying was poor. In addition, the sprayed water could not be reused, resulting in an overall need for more water and unnecessary waste of water resources. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and propose a cooling device for EPDM rubber production. During actual use, the device utilizes a cooling method of water cooling plus air cooling to improve the cooling effect. In addition, a heat exchange mechanism is also provided to cooperate with the recycling of water to reduce the waste of water resources.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The cooling device according to claim 1, wherein the cooling device comprises a cooling element and a cooling element, wherein the cooling element has a bottom end and a bottom end, and the cooling element has a bottom end and a bottom end.

[0008] Preferably, two rotating rollers are rotatably connected between the two vertical plates, and the upper ends of the two rotating rollers are commonly provided with rubber skins.

[0009] Preferably, the shaking mechanism includes a mounting bracket installed on the transverse plate, a driving motor is installed on the rear side of the mounting bracket, an output shaft of the driving motor is fixedly connected to a rotating shaft, and a cam is installed on the rotating shaft.

[0010] Preferably, two strip-shaped openings are symmetrically opened at the upper end of the horizontal plate, the upper ends of the two U-shaped hollow bars are fixedly connected to the vertical bars, the upper ends of the two vertical bars pass through the corresponding strip-shaped openings and are slidably connected, the upper ends of the two vertical bars are commonly fixedly connected to the horizontal bar, the lower ends of the horizontal bars are in contact with the upper end of the horizontal plate and are slidably connected, the front and rear sides of each vertical bar are fixedly connected to a spring, the other end of each spring is elastically connected to the side wall of the corresponding strip-shaped opening, and the rear side of the cam is in contact with the front side of the horizontal bar.

[0011] Preferably, the heat exchange mechanism includes temperature-conducting transverse tubes symmetrically arranged inside the liquid collecting box, and a plurality of temperature-conducting vertical tubes are connected between the two temperature-conducting transverse tubes. The other ends of the two temperature-conducting transverse tubes pass through the inner wall of the corresponding liquid collecting box. A heat exchanger is installed on the left side of the liquid collecting box. The liquid inlet and liquid outlet ends of the heat exchanger are both connected with connecting pipes, and the other ends of the two connecting pipes are connected to the corresponding rotating tubes through a rotary joint.

[0012] Preferably, a mounting plate is fixedly connected to the rear side of the support platform, and a rotating shaft is commonly provided on the two mounting plates. The rotating shaft is rotatably connected to the mounting plate, and a first bevel gear is fixedly connected to the lower end of the rotating shaft. A second bevel gear is installed on the rotating tube located on the rear side, and the first bevel gear is meshed with the second bevel gear.

[0013] Preferably, pulleys are installed on the upper end of the rotating shaft and the rotating shaft, and the two pulleys are connected by a transmission belt.

[0014] The present invention also discloses a method for using a cooling device for producing EPDM rubber, which uses the cooling device and includes the following steps:

[0015] The first step is to lay the rubber skin made of EPDM on two rotating rollers. The external unwinding structure continuously releases the rubber skin, and the external winding structure operates synchronously to keep the rubber skin in a stable and continuous motion state on the two rotating rollers.

[0016] Step 2: Start the air pump located in front of the front riser to achieve continuous cooling operation of water cooling and air cooling;

[0017] Step 3: Start the drive motor, and its output shaft drives the rotating shaft to start rotating, and finally drives the U-shaped hollow bar to do reciprocating motion back and forth, achieving a shaking effect. The shaking of the U-shaped hollow bar makes the cooling medium ejected from the nozzle act more evenly on the surface of the rubber skin, thereby improving the cooling uniformity;

[0018] Step 4: Start the heat exchanger installed on the left side of the liquid collecting box. The heat exchanger is integrated with a water pump. After starting, circulating water flows. The circulating water circulates between the heat exchanger, connecting pipe, rotating pipe, temperature conducting horizontal pipe and temperature conducting vertical pipe. During the flow process, the circulating water in the temperature conducting horizontal pipe and the temperature conducting vertical pipe exchanges heat with the water in the liquid collecting box, taking away the heat of the water in the liquid collecting box. When the circulating water flows through the heat exchanger again, the heat is dissipated, so that the temperature inside the liquid collecting box is always maintained at a low temperature to ensure the cooling effect.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Efficient cooling of the EPDM rubber skin is achieved by synergizing gas-liquid mixed cooling with air cooling. When the air pump is operating, the high-speed airflow creates negative pressure in the left branch pipe, drawing water from the liquid collection box into the left U-shaped hollow bar. After mixing with the gas, it is ejected from the nozzle, simultaneously cooling the upper and lower surfaces of the rubber skin with water. The right U-shaped hollow bar directly ejects gas for air cooling. This composite cooling method fully utilizes the advantages of rapid cooling through water cooling and continuous heat dissipation through air cooling. It can quickly and effectively reduce the temperature of the rubber skin, ensuring that the rubber skin remains within the appropriate temperature range during subsequent processing. This greatly improves cooling efficiency and effectiveness, effectively preventing damage to the rubber skin's performance due to excessive temperatures, and ensuring the quality and stability of EPDM rubber products.

[0021] 2. The shaking mechanism design significantly improves cooling uniformity. The drive motor drives the shaft and cam to rotate. The cam pushes the horizontal bar to reciprocate horizontally, and then drives the U-shaped hollow bar to reciprocate back and forth through the vertical bar. During the shaking process, the cooling medium sprayed from the nozzle of the U-shaped hollow bar can more evenly cover the surface of the rubber skin, making the temperature of each part of the rubber skin evenly drop, avoiding stress concentration and deformation caused by local temperature differences, and further improving the processing quality of the rubber skin.

[0022] 3. During the cooling process, the sprayed water falls back into the liquid collection box through the liquid droplet, realizing the recycling of water. This design not only reduces the waste of water resources and reduces production costs, but also conforms to the current green and environmentally friendly production concept.

[0023] 4. The heat exchange mechanism ensures that the temperature inside the liquid collection box remains low, providing a stable and suitable environment for the cooling process. The heat exchanger integrates a water pump to drive the circulating water to circulate between the heat exchanger, connecting pipe, rotating pipe, thermal transverse pipe, and thermal vertical pipe. During the flow process, the circulating water in the thermal transverse pipe and thermal vertical pipe fully exchanges heat with the water in the liquid collection box, promptly removing the heat absorbed by the water in the liquid collection box. The circulating water then dissipates the heat when flowing through the heat exchanger. This efficient heat exchange mechanism can accurately control the temperature of the water in the liquid collection box, avoiding a decrease in cooling effect due to increased water temperature, thereby ensuring the stability and reliability of the cooling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a cooling device for EPDM rubber production proposed by the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of the rear side;

[0026] Figure 3 for Figure 2 A magnified view of point A;

[0027] Figure 4 for Figure 2 Enlarged view of point B;

[0028] Figure 5 for Figure 1 Schematic cross-sectional view of ;

[0029] Figure 6 for Figure 5 Front view diagram of .

[0030] In the figure: 1 support platform, 2 base frame, 3 liquid collecting box, 4 heat exchanger, 5 connecting pipe, 6 vertical plate, 7 horizontal plate, 8 rubber skin, 9 rotating roller, 10 mounting frame, 11 drive motor, 12 air pump, 13 branch pipe, 14 check valve, 15 liquid inlet pipe, 16 mounting plate, 17 rotating shaft, 18 pulley, 19 transmission belt, 20 U-shaped hollow bar, 21 rotating shaft, 22 cam, 23 strip-shaped opening, 24 vertical bar, 25 horizontal bar, 26 spring, 27 liquid drop port, 28 temperature conducting vertical pipe, 29 rotating pipe, 30 first bevel gear, 31 second bevel gear, 32 rotary joint. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Reference Figures 1-6 A cooling device for EPDM rubber production includes a support platform 1, a liquid drop port 27 is provided on the support platform 1, a plurality of base frames 2 are mounted on the lower end of the support platform 1, two vertical plates 6 are symmetrically fixedly connected to the upper end of the support platform 1, a horizontal plate 7 is fixedly connected to the upper ends of the two vertical plates 6, two rotating rollers 9 are rotatably connected between the two vertical plates 6, and a rubber skin 8 is provided on the upper ends of the two rotating rollers 9. The movement of the rubber skin 8 can be achieved through an external unwinding and winding structure;

[0034] As an embodiment of the present invention, a cooling mechanism is further included. The cooling mechanism includes a liquid collecting box 3 set on the ground, an air pump 12 is installed on the front side of the vertical plate 6 on the front side, and two U-shaped hollow bars 20 are symmetrically arranged below the horizontal plate 7. The inner side of each U-shaped hollow bar 20 is provided with multiple nozzles, and the multiple nozzles are respectively located above and below the rubber skin 8, so as to achieve synchronous cooling of the upper and lower surfaces of the rubber skin 8. The exhaust end of the air pump 12 is connected to two branch pipes 13, and the other ends of the two branch pipes 13 are respectively connected to the two U-shaped hollow bars 20. A check valve 14 is installed inside each of the two branch pipes 13. The branch pipes 13 are made of soft pipes. The branch pipe 13 on the left is connected to the liquid inlet pipe 15. When a high-speed airflow is generated at the left branch pipe 13, a lower air pressure is generated therein. Through the negative pressure difference, the water in the liquid collecting box 3 is flushed out and enters the U-shaped hollow bar 20 on the left along with the airflow, and is finally ejected. In this way, water cooling operation can be achieved. The other end of the liquid inlet pipe 15 extends to the bottom of the liquid collecting box 3. A one-way valve that moves from bottom to top is also installed inside the liquid inlet pipe 15.

[0035] As an embodiment of the present invention, it also includes a shaking mechanism, which is used to improve the cooling uniformity of the cooling mechanism. The shaking mechanism includes a mounting frame 10 installed on the horizontal plate 7, and a driving motor 11 is installed on the rear side of the mounting frame 10. The output shaft of the driving motor 11 is fixedly connected to the rotating shaft 21, and a cam 22 is installed on the rotating shaft 21. The upper end of the horizontal plate 7 is symmetrically provided with two strip openings 23, and the upper ends of the two U-shaped hollow bars 20 are fixedly connected to the vertical bars 24. The upper ends of the two vertical bars 24 pass through the corresponding strip openings 23 and are slidably connected. The upper ends of the two vertical bars 24 are commonly fixedly connected to a horizontal bar 25, and the lower end of the horizontal bar 25 contacts the upper end of the horizontal plate 7 and is slidably connected. The front and rear sides of each vertical bar 24 are fixedly connected to a spring 26, and the other end of each spring 26 is elastically connected to the side wall of the corresponding strip opening 23, and the rear side of the cam 22 is in contact with the front side of the horizontal bar 25;

[0036] As an embodiment of the present invention, a heat exchange mechanism is further included, which is used to ensure that the temperature inside the liquid collecting box 3 is always at a low temperature. The heat exchange mechanism includes a temperature-conducting transverse tube symmetrically arranged inside the liquid collecting box 3, and a plurality of temperature-conducting vertical tubes 28 are connected between the two temperature-conducting transverse tubes. The other ends of the two temperature-conducting transverse tubes pass through the inner wall of the corresponding liquid collecting box 3. A heat exchanger 4 is installed on the left side of the liquid collecting box 3. The liquid inlet and liquid outlet ends of the heat exchanger 4 are both connected to a connecting pipe 5. The heat exchanger 4 is integrated with a water pump. When started, a circulating water flow can be generated. The other ends of the two connecting pipes 5 are connected to the corresponding rotating pipe 29 through a rotary joint 32.

[0037] As an embodiment of the present invention, a mounting plate 16 is fixedly connected to the rear side of the support platform 1, and a rotating shaft 17 is commonly provided on the two mounting plates 16. The rotating shaft 17 is rotatably connected to the mounting plate 16. The lower end of the rotating shaft 17 is fixedly connected to a first bevel gear 30, and a second bevel gear 31 is installed on the rotating tube 29 located at the rear side. The first bevel gear 30 is meshed with the second bevel gear 31. Pulleys 18 are installed on the upper end of the rotating shaft 17 and the rotating shaft 21, and the two pulleys 18 are connected through a transmission belt 19.

[0038] In the present invention, a rubber skin 8 made of EPDM rubber is laid on two rotating rollers 9, and the rubber skin 8 is continuously released by an external unwinding structure, and the external winding structure operates synchronously, so that the rubber skin 8 maintains a stable and continuous motion state on the two rotating rollers 9, preparing for the subsequent cooling process. The air pump 12 located on the front side of the front vertical plate 6 is started, and the exhaust end of the air pump 12 begins to discharge gas, and the gas is transported through the two branch pipes 13. When a high-speed airflow is generated in the left branch pipe 13 due to the air supply of the air pump 12, according to the Bernoulli principle, the air pressure inside the branch pipe 13 is reduced, and the liquid collecting box 3 is cooled. A negative pressure difference is formed inside. Under the action of this negative pressure difference, the water in the liquid collecting box 3 flushes the one-way valve in the liquid inlet pipe 15 and enters the left branch pipe 13 with the air flow, and then enters the U-shaped hollow bar 20 connected to the left branch pipe 13. Multiple nozzles are provided on the inside of the two U-shaped hollow bars 20, and are respectively located above and below the rubber skin 8. After the gas entering the left U-shaped hollow bar 20 is mixed with the water, it is ejected from the nozzles to synchronously cool the upper and lower surfaces of the rubber skin 8, effectively reducing the temperature of the rubber skin 8 to meet production requirements. The U-shaped hollow bar 20 on the right sprays gas to achieve the purpose of air cooling.

[0039] During the above process, the drive motor 11 can also be started, and its output shaft drives the rotating shaft 21 to start rotating, and the cam 22 installed on the rotating shaft 21 rotates accordingly. Since the rear side of the cam 22 is in contact with the front side of the horizontal bar 25, the outer contour of the cam 22 continuously applies force to the horizontal bar 25 during the rotation of the cam 22, pushing the horizontal bar 25 to reciprocate in the horizontal direction, and using the vertical bar 24 to drive the U-shaped hollow bar 20 to reciprocate back and forth, achieving a shaking effect. The shaking of the U-shaped hollow bar 20 makes the cooling medium (gas and water) sprayed from the nozzle act more evenly on the surface of the rubber skin 8, thereby improving the cooling uniformity and avoiding local over- or under-cooling. The sprayed water will eventually fall into the liquid collecting box 3 through the liquid drop port 27, realizing water recycling.

[0040] The heat exchanger 4 installed on the left side of the liquid collecting box 3 can also be started. The heat exchanger 4 is integrated with a water pump. After starting, a circulating water flow is generated. The circulating water circulates between the heat exchanger 4, the connecting pipe 5, the rotating pipe 29, the temperature conducting horizontal pipe and the temperature conducting vertical pipe 28. During the flow process, the circulating water in the temperature conducting horizontal pipe and the temperature conducting vertical pipe 28 exchanges heat with the water in the liquid collecting box 3, taking away the heat of the water in the liquid collecting box 3. When the circulating water flows through the heat exchanger 4 again, the heat is dissipated, so that the temperature inside the liquid collecting box 3 is always maintained at a low temperature, ensuring the cooling effect.

[0041] When the driving motor 11 drives the rotating shaft 21 to rotate, the power is transmitted to the rotating shaft 17 through the transmission belt 19, so that the rotating shaft 17 starts to rotate, and the first bevel gear 30 and the second bevel gear 31 are engaged, so that the rotating tube 29 can rotate. During the rotation of the rotating tube 29, the temperature conducting horizontal tube and the temperature conducting vertical tube 28 can rotate in the water in the liquid collecting box 3, so that the heat exchange effect is better.

[0042] The present invention also discloses a method for using a cooling device for producing EPDM rubber, which uses the cooling device and includes the following steps:

[0043] Step 1: Lay the rubber skin 8 made of EPDM rubber on two rotating rollers 9, and use the external unwinding structure to continuously release the rubber skin 8. The external winding structure operates synchronously to keep the rubber skin 8 in a stable and continuous motion state on the two rotating rollers 9;

[0044] Step 2: Start the air pump 12 located in front of the front riser 6 to achieve continuous cooling operation of water cooling and air cooling;

[0045] Step 3: Start the drive motor 11, and its output shaft drives the rotating shaft 21 to start rotating, and finally drives the U-shaped hollow bar 20 to do reciprocating motion back and forth, achieving a shaking effect. The shaking of the U-shaped hollow bar 20 makes the cooling medium ejected from the nozzle act more evenly on the surface of the rubber skin 8, thereby improving the cooling uniformity;

[0046] Step 4: Start the heat exchanger 4 installed on the left side of the liquid collecting box 3. The heat exchanger 4 is integrated with a water pump. After starting, circulating water flows. The circulating water circulates between the heat exchanger 4, the connecting pipe 5, the rotating pipe 29, the temperature conducting horizontal pipe and the temperature conducting vertical pipe 28. During the flow process, the circulating water in the temperature conducting horizontal pipe and the temperature conducting vertical pipe 28 exchanges heat with the water in the liquid collecting box 3, taking away the heat of the water in the liquid collecting box 3. When the circulating water flows through the heat exchanger 4 again, the heat is dissipated, so that the internal temperature of the liquid collecting box 3 is always maintained at a low temperature, ensuring the cooling effect.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A cooling device for EPDM rubber production, characterized in that: include: A support platform (1), wherein a liquid drop port (27) is provided on the support platform (1), a plurality of base frames (2) are installed at the lower end of the support platform (1), and two vertical plates (6) are symmetrically fixedly connected to the upper end of the support platform (1), and the upper ends of the two vertical plates (6) are commonly fixedly connected to a horizontal plate (7); A cooling mechanism, the cooling mechanism comprising a liquid collecting box (3) arranged on the ground, an air pump (12) being installed on the front side of the vertical plate (6) located on the front side, two U-shaped hollow bars (20) being symmetrically arranged below the horizontal plate (7), a plurality of nozzles being arranged on the inner side of each of the U-shaped hollow bars (20), an exhaust end of the air pump (12) being connected to two branch pipes (13), the other ends of the two branch pipes (13) being respectively connected to the two U-shaped hollow bars (20), a check valve (14) being installed inside the two branch pipes (13), the branch pipe (13) located on the left side being connected to a liquid inlet pipe (15), the other end of the liquid inlet pipe (15) extending to the bottom of the liquid collecting box (3); A shaking mechanism, wherein the shaking mechanism is used to improve the cooling uniformity of the cooling mechanism; A heat exchange mechanism is used to ensure that the internal temperature of the liquid collecting box (3) is always at a low temperature.

2. The cooling device for EPDM production according to claim 1, characterized in that: Two rotating rollers (9) are rotatably connected between the two vertical plates (6), and the upper ends of the two rotating rollers (9) are commonly provided with a rubber skin (8).

3. The cooling device for EPDM production according to claim 1, characterized in that: The shaking mechanism comprises a mounting frame (10) mounted on a transverse plate (7), a driving motor (11) being mounted on the rear side of the mounting frame (10), an output shaft of the driving motor (11) being fixedly connected to a rotating shaft (21), and a cam (22) being mounted on the rotating shaft (21).

4. The cooling device for EPDM rubber production according to claim 3, characterized in that: The upper end of the horizontal plate (7) is symmetrically provided with two strip-shaped openings (23), the upper ends of the two U-shaped hollow bars (20) are fixedly connected with vertical bars (24), the upper ends of the two vertical bars (24) pass through the corresponding strip-shaped openings (23) and are slidably connected, the upper ends of the two vertical bars (24) are commonly fixedly connected with a horizontal bar (25), the lower end of the horizontal bar (25) contacts the upper end of the horizontal plate (7) and is slidably connected, the front and rear sides of each vertical bar (24) are fixedly connected with a spring (26), the other end of each spring (26) is elastically connected to the side wall of the corresponding strip-shaped opening (23), and the rear side of the cam (22) is in contact with the front side of the horizontal bar (25).

5. The cooling device for EPDM production according to claim 3, characterized in that: The heat exchange mechanism comprises a temperature-conducting transverse pipe symmetrically arranged inside the liquid collecting box (3); a plurality of temperature-conducting vertical pipes (28) are connected between two of the temperature-conducting transverse pipes; the other ends of the two temperature-conducting transverse pipes pass through the inner wall of the corresponding liquid collecting box (3); a heat exchanger (4) is installed on the left side of the liquid collecting box (3); the liquid inlet and liquid outlet ends of the heat exchanger (4) are both connected to a connecting pipe (5); the other ends of the two connecting pipes (5) are both connected to the corresponding rotating pipe (29) through a rotary joint (32).

6. The cooling device for EPDM rubber production according to claim 5, characterized in that: The rear side of the support platform (1) is fixedly connected to a mounting plate (16); a rotating shaft (17) is provided through both mounting plates (16); the rotating shaft (17) is rotatably connected to the mounting plate (16); a first bevel gear (30) is fixedly connected to the lower end of the rotating shaft (17); a second bevel gear (31) is installed on the rotating tube (29) located at the rear side; the first bevel gear (30) is meshed with the second bevel gear (31).

7. The cooling device for EPDM production according to claim 6, characterized in that: Pulleys (18) are installed on the upper end of the rotating shaft (17) and the rotating shaft (21), and the two pulleys (18) are connected by a transmission belt (19).

8. A method for using a cooling device for EPDM rubber production, using the cooling device as described in claims 1-7, characterized in that: The following steps are involved: The first step is to lay a rubber skin (8) made of EPDM rubber on two rotating rollers (9), and continuously release the rubber skin (8) by using an external unwinding structure, and the external winding structure operates synchronously, so that the rubber skin (8) maintains a stable and continuous motion state on the two rotating rollers (9); Step 2: Start the air pump (12) located in front of the front vertical plate (6) to achieve continuous cooling operation of water cooling and air cooling; Step 3: Start the driving motor (11), and its output shaft drives the rotating shaft (21) to start rotating, and finally drives the U-shaped hollow bar (20) to do a back and forth reciprocating motion, achieving a shaking effect. The shaking of the U-shaped hollow bar (20) makes the cooling medium ejected from the nozzle act more evenly on the surface of the rubber skin (8), thereby improving the cooling uniformity; Step 4: Start the heat exchanger (4) installed on the left side of the liquid collecting box (3). The heat exchanger (4) is integrated with a water pump. After starting, a circulating water body flows. The circulating water body circulates between the heat exchanger (4), the connecting pipe (5), the rotating pipe (29), the temperature conducting transverse pipe and the temperature conducting vertical pipe (28). During the flow process, the circulating water body in the temperature conducting transverse pipe and the temperature conducting vertical pipe (28) exchanges heat with the water body in the liquid collecting box (3), taking away the heat of the water body in the liquid collecting box (3). When the circulating water body flows through the heat exchanger (4) again, the heat is dissipated, so that the internal temperature of the liquid collecting box (3) is always maintained at a low temperature, ensuring the cooling effect.

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