Cooling device for rubber and plastic granulation

Abstract

The utility model discloses a cooling device for rubber and plastic granulation, which belongs to the field of rubber and plastic granulation and comprises a supporting mechanism, a cooling tank arranged on the supporting mechanism and a circulating heat dissipation mechanism arranged on the cooling tank. The cooling tank is arranged in the water tank, the direction of the cooling tank is opposite to the moving direction of the rubber strip, so that the heat exchange effect is improved, a partition plate is arranged in the center in the cooling tank and divides the cooling tank into a first-section water tank and a second-section water tank which are communicated with each other, a water outlet is formed in the first-section water tank, and a water inlet is formed in the second-section water tank. According to the cooling device for rubber and plastic granulation, rubber strips are cooled in a segmented mode through the circulating heat dissipation mechanism and the cooling tank designed in a segmented mode, the plate type heat exchanger is connected with the circulating water system, cooling water circulates between the cooling tank and the plate type heat exchanger through the circulating pump, and effective heat dissipation and recycling of the cooling water are achieved.

Description

Technical Field

[0001] The utility model relates to the field of rubber pellets, in particular to a cooling device for rubber pellets. Background Art

[0002] Rubber granulation is the process of processing rubber products into rubber granules. Its main purpose is to crush rubber fragments into particles of a certain size to maximize the excellent properties of rubber during further processing. The rubber granulation process includes extrusion into strips, cooling, granulation, screening, drying, and packaging.

[0003] Chinese utility model patent publication number CN211807758U discloses a cooling water trough for an extruder. The cooling water trough of the extruder allows the cooling water in the trough to circulate through a water pump, thereby more efficiently cooling the extruded finished product in the cooling water trough. At the same time, the cooling water in the cooling water trough that has exchanged heat with the extruded finished product can be cooled during the flow transfer process after leaving the cooling water trough, thereby avoiding the temperature of the cooling water trough in the cooling water trough to increase.

[0004] However, the cooling water after heat exchange with the extruded finished product can only dissipate heat naturally through the pipeline during the circulation flow transfer process, and the heat dissipation effect is poor. If a high degree of long-term cooling work is maintained, the temperature of the cooling water in the water tank will continue to rise, thereby affecting the subsequent cooling effect.

[0005] Therefore, a cooling device for rubber pelletizing is provided to solve the above problems. Utility Model Content

[0006] (1) Technical problems solved

[0007] The utility model provides a cooling device for rubber pellets, aiming to solve the problem in the background art that the cooling water tank of the existing extruder can only dissipate heat naturally through pipelines, thereby failing to maintain a lasting cooling effect.

[0008] (2) Technical solution

[0009] To achieve the above object, the present invention provides the following technical solution: a cooling device for rubber pelletizing, comprising a supporting mechanism, a cooling trough provided on the supporting mechanism, and a circulating heat dissipation mechanism provided on the cooling trough.

[0010] In order to form a circulating water flow in the cooling tank, and the direction is opposite to the moving direction of the rubber strip to improve the heat exchange effect, a partition is provided at the central position of the cooling tank, which divides the cooling tank into a first water pool and a second water pool that are interconnected. A drain outlet is provided in the first water pool, and a water inlet is provided in the second water pool. A filter box is installed in the drain outlet.

[0011] The circulating heat dissipation mechanism includes a plate heat exchanger arranged on one side of the supporting mechanism and a circulating pump fixedly installed on the supporting mechanism for circulating cooling water between the cooling tank and the plate heat exchanger.

[0012] The plate heat exchanger is provided with a first inlet end, a first outlet end, a second inlet end and a second outlet end, the first inlet end is connected to the drain port, the first outlet end is connected to the water inlet, and the second inlet end and the second outlet end are respectively connected to the water outlet end and the water inlet end of the external cold water circulation system; the cooling water after heat exchange in the cooling tank is introduced from the first water pool into the plate heat exchanger through a circulation pump, and after heat exchange with external cold water, the re-cooled cooling water is sent back to the second water pool of the cooling tank, thereby forming a cooling water flow from the second water pool to the first water pool in the cooling tank, and the rubber strip can be sent from the first water pool, thereby forming a hedge, improving the cooling efficiency, and the cooling tank is separated by a partition. Since the first water pool in operation will first contact the rubber strip coming out of the extruder, the water temperature will be higher than the water temperature of the second water pool, forming a segmented cooling. The higher temperature first water pool first contacts the rubber strip, which helps to reduce the stress response of the high-temperature rubber when it is cold, and avoid cracking and damage.

[0013] Preferably, in order to separate the cooling groove into two interconnected sections, the partition has a folded plate formed by bending in the center, and a through groove is formed on the part of the partition corresponding to the folded plate; the cooling groove is divided into two sections by the partition, and the two sections are kept interconnected under the action of the through groove formed by the bending. At the same time, the bent folded plate can provide support and protection when the rubber strip passes through the through groove to avoid being scratched by the notch of the through groove.

[0014] Preferably, in order to prevent the water in the cooling tank from overflowing, the first section of the water pool is provided with an overflow pipe connected to the first inlet end and a filter cap fixedly installed on the top of the overflow pipe; when the rubber strip is immersed in the cooling tank, the water level will rise. Through the presence of the overflow pipe, the rising overflowing cooling water can be drawn out from the port of the overflow pipe and merged into the first inlet end to enter the water circulation, which not only avoids overflow but also prevents waste of cooling water.

[0015] Preferably, in order to facilitate the adjustment of the cooling trough close to or away from the extruder discharge port, the support mechanism includes a support frame, a guide rail fixedly connected to the top of the support frame for supporting the cooling trough, a driving device fixedly installed on the support frame for driving the cooling trough to move horizontally on the guide rail, and telescopic feet screwed at the corresponding four corners of the bottom of the support frame, wherein the cooling trough is slidably connected to the guide rail; the cooling trough is driven to move horizontally on the guide rail by the driving device on the support frame, thereby achieving approach or distance to the extruder discharge port, and the telescopic feet at the four corners of the bottom of the support frame can adjust the overall height of the support frame by rotation, so as to facilitate alignment with the extruder discharge port.

[0016] Preferably, in order to prevent the rubber strip from floating on the surface of the cooling water, a plurality of guiding devices are provided on the cooling trough, and the guiding devices include an I-shaped holder symmetrically clamped on the side edge of the cooling trough, a door frame fixedly connected between the I-shaped holders, a guide roller rotatably mounted on the middle section of the door frame, and a plurality of limiting grooves distributed in a linear array on the guide roller; by clamping the I-shaped holder upside down on the edge of the cooling trough, the guide roller is pressed on the rubber strip, thereby immersing the rubber strip in the cooling water, and because the guide roller can rotate and the limiting grooves are equidistantly distributed on the guide roller, the multiple rubber strips that are cooled synchronously can be kept neat and non-interfering with each other, thereby ensuring the cooling effect while improving efficiency.

[0017] Preferably, in order to cooperate with the horizontal movement of the cooling tank, the pipe fittings used to connect the cooling tank, the plate heat exchanger and the circulation pump are all spring hoses; the connection is made through the spring hose, which can extend and deform when the cooling tank moves, preventing the joints from being disconnected due to pulling, thereby ensuring the stability of the water circulation.

[0018] Preferably, in order to maintain the appropriate temperature of the cooling water in the first water pool, a heating mechanism is provided in the first water pool, and the heating mechanism includes a temperature sensor fixedly installed in the first water pool and a heating coil fixedly installed in the first water pool, the temperature sensor and the heating coil are both connected to an external controller, the output end of the temperature sensor is connected to the input end of the external controller, and the input end of the heating coil is connected to the output end of the external controller; the heating mechanism can maintain the water temperature in the first water pool constant at - degrees, which is the optimal cooling temperature for the rubber strip, which can quickly shape the rubber strip without irritating it, and helps to improve the yield and efficiency. Specifically, when the temperature sensor detects that the water temperature in the first water pool is too low, it will be fed back to the external controller, and then the heating coil will be started by the external controller for heating, and then stopped when the appropriate temperature is reached.

[0019] (3) Beneficial effects

[0020] The cooling device for rubber molding pellets realizes segmented cooling of rubber strips through a circulating heat dissipation mechanism and a segmented cooling trough. It is connected to a plate heat exchanger circulating water system, and the cooling water is circulated between the cooling trough and the plate heat exchanger through a circulating pump, thereby realizing effective heat dissipation and reuse of the cooling water.

[0021] The design of the cooling device, support mechanism and guide device for rubber pelletizing enables the system to easily adjust the position and align with the extruder outlet, while ensuring that the rubber strips are neat and do not interfere with each other during the cooling process.

[0022] The cooling device for rubber molding pellets is also equipped with a heating mechanism, which can keep the water temperature in the first water pool constant within the optimal cooling temperature range of the rubber strip, further improving the cooling effect and yield rate. Overall, the system not only improves the cooling efficiency and yield rate of the rubber strip, but also has good flexibility and adaptability, and can meet different production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a cooling device for rubber pellets Figure 1 ;

[0024] Figure 2 A schematic diagram of the structure of a cooling device for rubber pellets Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the top view of a cooling device for rubber pellets;

[0026] Figure 4 for Figure 3 A schematic diagram of the structure enlarged in the middle;

[0027] Figure 5 The figure is a schematic diagram of the structure of a guide device in a cooling device for rubber pellets.

[0028] In the picture:

[0029] 1. Support mechanism; 11. Support frame; 12. Guide rail; 13. Drive device; 14. Telescopic foot;

[0030] 2. Cooling trough; 21. First water tank; 211. Drain; 212. Filter box; 213. Overflow pipe; 214. Filter cap; 22. Second water tank; 221. Water inlet; 23. Partition; 231. Through slot; 232. Folding plate;

[0031] 3. Circulating heat dissipation mechanism; 31. Plate heat exchanger; 311. First inlet; 312. First outlet; 313. Second inlet; 314. Second outlet; 32. Circulating pump;

[0032] 4. Heating mechanism; 41. Temperature sensor; 42. Heating coil;

[0033] 5. Guide device; 51. I-shaped holder; 52. Door frame; 53. Guide roller; 531. Limiting groove. DETAILED DESCRIPTION

[0034] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-Figure 5 The utility model provides a technical solution: a cooling device for rubber molding pellets, comprising a supporting mechanism 1, a cooling trough 2 arranged on the supporting mechanism 1, and a circulating heat dissipation mechanism 3 arranged on the cooling trough 2.

[0037] There is a partition 23 at the central position of the cooling tank 2, which divides the cooling tank 2 into a first water pool 21 and a second water pool 22 that are interconnected. A drain outlet 211 is provided in the first water pool 21, and a water inlet 221 is provided in the second water pool 22. A filter box 212 is installed in the drain outlet 211.

[0038] The circulating heat dissipation mechanism 3 includes a plate heat exchanger 31 arranged on one side of the support mechanism 1 and a circulating pump 32 fixedly installed on the support mechanism 1 for circulating cooling water between the cooling tank 2 and the plate heat exchanger 31 .

[0039] The plate heat exchanger 31 has a first inlet end 311, a first outlet end 312, a second inlet end 313 and a second outlet end 314. The first inlet end 311 is connected to the drain port 211, the first outlet end 312 is connected to the water inlet 221, and the second inlet end 313 and the second outlet end 314 are respectively connected to the water outlet and water inlet of the external cold water circulation system.

[0040] During use, the cooling water after heat exchange in the cooling tank 2 is filtered through the filter box 212 through the circulation pump 32 and introduced into the plate heat exchanger 31 to exchange heat with external cold water. The re-cooled cooling water is then sent back to the second water pool 22 of the cooling tank 2, thereby forming a flow of cooling water from the second water pool 22 to the first water pool 21 in the cooling tank 2, and the rubber strips can be fed from the first water pool 21, thereby forming a hedge and improving the cooling efficiency. The cooling tank 2 is separated by the partition 23. Since the first water pool 21 during operation will first contact the rubber strips coming out of the extruder, the water temperature will be higher than the water temperature of the second water pool 22, forming a segmented cooling. The higher temperature first water pool 21 first contacts the rubber strips, which helps to reduce the stress response of the high-temperature rubber when it is cold, and avoid cracking and damage.

[0041] Specifically, the partition 23 has a folded plate 232 formed by bending in the center, and a through groove 231 is formed on the portion of the partition 23 corresponding to the folded plate 232; the cooling groove 2 is divided into two sections by the partition 23, and the two sections are kept connected to each other under the action of the through groove 231 formed by the bending. At the same time, the bent folded plate 232 can provide support and protection when the rubber strip passes through the through groove 231, avoiding being scratched by the notch of the through groove 231.

[0042] Furthermore, the first water pool 21 has an overflow pipe 213 connected to the first inlet end 311 and a filter cap 214 fixedly installed on the top of the overflow pipe 213. The opening height of the overflow pipe 213 is higher than the height of the bottom of the through groove 231. When the rubber strip is immersed in the cooling tank 2, the water level will rise. Due to the existence of the overflow pipe 213, the rising overflow cooling water can be drawn out from the port of the overflow pipe 213 and merged into the first inlet end 311 to enter the water circulation, which not only avoids overflow but also prevents waste of cooling water.

[0043] In addition, the support mechanism 1 includes a support frame 11, a guide rail 12 fixedly connected to the top of the support frame 11 for supporting the cooling trough 2, a driving device 13 fixedly installed on the support frame 11 for driving the cooling trough 2 to move horizontally on the guide rail 12, and a telescopic foot 14 screwed at the corresponding four corners of the bottom of the support frame 11, wherein the cooling trough 2 is slidably connected to the guide rail 12, and the pipe fittings used to connect the cooling trough 2, the plate heat exchanger 31 and the circulation pump 32 are all spring hoses; the driving device 13 on the support frame 11 drives the cooling trough 2 to move horizontally on the guide rail 12, thereby achieving approach or distance to the extruder discharge port, and the telescopic feet 14 at the four corners of the bottom of the support frame 11 can adjust the overall height of the support frame 11 by rotation, which is convenient for aligning the extruder discharge port, and is connected through a spring hose, which can be extended and deformed when the cooling trough 2 moves, preventing the joint from being disconnected due to pulling, thereby ensuring the stability of the water circulation.

[0044] Furthermore, a plurality of guiding devices 5 are provided on the cooling trough 2, and the guiding devices 5 include an I-shaped holder 51 symmetrically clamped on the side edge of the cooling trough 2, a door frame 52 fixedly connected between the I-shaped holders 51, a guide roller 53 rotatably mounted on the middle section of the door frame 52, and a plurality of limiting grooves 531 distributed in a linear array on the guide roller 53; by clamping the I-shaped holder 51 upside down on the edge of the cooling trough 2, the guide roller 53 is pressed on the rubber strip, thereby immersing the rubber strip in cooling water, and because the guide roller 53 can rotate and the limiting grooves 531 are equidistantly distributed on the guide roller 53, the multiple rubber strips that are cooled synchronously can be kept neat and non-interfering with each other, thereby ensuring the cooling effect while improving efficiency.

[0045] Example 2

[0046] Different from Example 1, a heating mechanism 4 is provided in the first water pool 21. The heating mechanism 4 includes a temperature sensor 41 fixedly installed in the first water pool 21 and a heating coil 42 fixedly installed in the first water pool 21. The temperature sensor 41 and the heating coil 42 are both connected to an external controller, the output end of the temperature sensor 41 is connected to the input end of the external controller, and the input end of the heating coil 42 is connected to the output end of the external controller; the heating mechanism 4 can keep the water temperature in the first water pool 21 constant at 30-40 degrees, which is the optimal cooling temperature for the rubber strip, so that it can be quickly shaped without irritating the rubber strip, which helps to improve the yield and efficiency. Specifically, when the temperature sensor 41 detects that the water temperature in the first water pool 21 is too low, it will be fed back to the external controller, and then the heating coil 42 will be started by the external controller for heating, and then stopped when the appropriate temperature is reached.

[0047] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cooling device for rubber pelletizing, comprising a support mechanism (1), a cooling trough (2) provided on the support mechanism (1), and a circulating heat dissipation mechanism (3) provided on the cooling trough (2), characterized in that: A partition (23) is provided at the central position of the cooling trough (2), and the partition (23) divides the cooling trough (2) into a first water pool (21) and a second water pool (22) which are interconnected. A drain outlet (211) is provided in the first water pool (21), and a water inlet (221) is provided in the second water pool (22). A filter box (212) is installed in the drain outlet (211); The circulating heat dissipation mechanism (3) comprises a plate heat exchanger (31) arranged on one side of the support mechanism (1) and a circulating pump (32) fixedly mounted on the support mechanism (1) for circulating cooling water between the cooling tank (2) and the plate heat exchanger (31); The plate heat exchanger (31) has a first inlet end (311), a first outlet end (312), a second inlet end (313) and a second outlet end (314); the first inlet end (311) is connected to the drain port (211); the first outlet end (312) is connected to the water inlet (221); the second inlet end (313) and the second outlet end (314) are respectively connected to the water outlet end and the water inlet end of an external cold water circulation system.

2. A cooling device for rubber pelletizing according to claim 1, characterized in that: The center of the partition (23) is provided with a folded plate (232) formed by bending, and a through groove (231) is formed on a portion of the partition (23) corresponding to the folded plate (232).

3. A cooling device for rubber pelletizing according to claim 2, characterized in that: The first water pool (21) includes an overflow pipe (213) in communication with the first inlet end (311) and a filter cap (214) fixedly mounted on the top of the overflow pipe (213).

4. A cooling device for rubber pelletizing according to claim 3, characterized in that: The support mechanism (1) comprises a support frame (11), a guide rail (12) fixedly connected to the top of the support frame (11) for supporting the cooling trough (2), a driving device (13) fixedly mounted on the support frame (11) for driving the cooling trough (2) to move horizontally on the guide rail (12), and telescopic feet (14) screwed to the four corners corresponding to the bottom of the support frame (11), wherein the cooling trough (2) is slidably connected to the guide rail (12).

5. A cooling device for rubber pelletizing according to claim 4, characterized in that: The cooling trough (2) is provided with a plurality of guide devices (5), the guide devices (5) comprising an I-shaped holder (51) symmetrically clamped on the side edge of the cooling trough (2), a door frame (52) fixedly connected between the I-shaped holders (51), a guide roller (53) rotatably mounted on the middle section of the door frame (52), and a plurality of limit grooves (531) arranged on the guide roller (53) and distributed in a linear array.

6. A cooling device for rubber pelletizing according to claim 5, characterized in that: The pipe fittings used to connect the cooling tank (2), the plate heat exchanger (31) and the circulation pump (32) are all spring hoses.

7. A cooling device for rubber pelletizing according to claim 6, characterized in that: A heating mechanism (4) is provided in the first section of the water pool (21), and the heating mechanism (4) comprises a temperature sensor (41) fixedly installed in the first section of the water pool (21) and a heating coil (42) fixedly installed in the first section of the water pool (21). The temperature sensor (41) and the heating coil (42) are both connected to an external controller, the output end of the temperature sensor (41) is connected to the input end of the external controller, and the input end of the heating coil (42) is connected to the output end of the external controller.

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