Thermoplastic elastomer water cutting granulation equipment

Abstract

The utility model provides thermoplastic elastomer water cutting granulation equipment which comprises an extruder, a water cutting groove is fixedly connected to a discharge port of the extruder, a water cutting assembly is arranged on the inner side wall of the water cutting groove, one end of a first circulating pipe is fixedly connected to the top of the water cutting groove, and a dewatering and spin-drying assembly is fixedly installed at the other end of the first circulating pipe. One end of a second circulating pipe is fixedly installed at the bottom of the dewatering and spin-drying assembly, the other end of the second circulating pipe is fixedly installed at the input end of a circulating water tank, cooling assemblies are arranged on the two opposite side walls of the circulating water tank respectively, the output end of the circulating water tank is connected with one end of a third circulating pipe, and the other end of the third circulating pipe is connected with the bottom of the water cutting groove. According to the cooling device, cooling can be carried out by controlling the water temperature, tiny chippings generated by abrasion of equipment can be collected, the product quality and the granulation efficiency can be improved, and the beneficial effect of prolonging the service life of the equipment can also be achieved.

Description

Technical Field

[0001] The utility model relates to the field of hot - plastic elastomer underwater pelletizing, in particular to a hot - plastic elastomer underwater pelletizing device. Background Art

[0002] The pelletizing part structure in an extrusion granulator is the main device in the auxiliary machine of the extrusion pelletizing equipment. According to its different working methods and functions, the pelletizing auxiliary machine can be divided into two parts: hot cutting and cooling. And hot cutting can be further divided into dry cutting, water - ring cutting and underwater cutting and other structural forms.

[0003] In the related technology, through retrieval, the utility model patent with the patent announcement number CN217862227U proposes a hot - plastic elastomer underwater pelletizing device, including a machine body. A controller is arranged at the rear end of the machine body. The right end of the machine body is fixedly connected with a pelletizing head. The front end of the pelletizing head is fixedly connected with a water - circulation system pipe. The other end of the water - circulation system pipe is internally spirally connected with a connecting pipe. The other end of the connecting pipe is fixedly connected with a filter block. The other side of the filter block is sleeved with an input pipe. A partition is fixedly connected inside the filter block.

[0004] According to the above - mentioned prior art, the inventor combined with relevant technologies and found in actual application that this utility model only solves the problem that water flow directly flushes into the inside of the pelletizing head. This utility model cannot solve the control of water temperature and the collection of debris caused by equipment wear. When performing underwater pelletizing, the temperature of the pelletizing water plays a very important role in the quality of the granular product. When the temperature of the pelletizing water is too high, it will reduce the cooling speed of the particles, causing sticking of materials, uneven and non - smooth and plump surfaces of the particles, resulting in a reduction in product quality. In addition, when the cutting knife cuts the particles, the wear is relatively large, and the scattered fine debris will circulate inside the machine, thus damaging the inside of the machine body, reducing the service life of the equipment. Moreover, there will be burrs during particle cutting, resulting in incomplete drying during centrifugal drying, increasing the moisture content of the particles and reducing the product quality. Therefore, it is very necessary to control the water temperature and collect the debris. Summary of the Utility Model

[0005] In order to solve the problems of water - temperature control and debris collection in the prior art, the utility model provides a hot - plastic elastomer underwater pelletizing device.

[0006] The hot - plastic elastomer underwater pelletizing device provided by the utility model adopts the following technical solutions:

[0007] A thermoplastic elastomer water-cut granulation device, including an extruder, a water-cut groove is fixedly connected to the discharge port of the extruder, a water-cut component is arranged on the inner side wall of the water-cut groove, one end of a first circulation pipe is fixedly connected to the top of the water-cut groove, the other end of the first circulation pipe is fixedly installed with a dehydration and drying component, one end of a second circulation pipe is fixedly installed at the bottom of the dehydration and drying component, the other end of the second circulation pipe is fixedly installed at the input end of a circulation water tank, cooling components are respectively arranged on two opposite side walls of the circulation water tank, one end of a third circulation pipe is installed and connected to the output end of the circulation water tank, the other end of the third circulation pipe is connected to the bottom of the water-cut groove, and a circulation pump is arranged at one end of the third circulation pipe close to the circulation water tank.

[0008] Further, the water-cut component includes a cutting knife, a rotating rod, a water-blocking block, a locking block, a moving carriage, and a first motor. A moving carriage is arranged on one side of the extruder close to the water-cut groove. The top of the moving carriage is fixedly connected with a first motor through bolts. The output end of the first motor is connected to a rotating rod through a coupling. A cutting knife is arranged at the end of the rotating rod. A water-blocking block is arranged on one side of the rotating rod close to the first motor. Magnetic attraction units are respectively arranged on the upper and lower sides of the water-blocking block. A locking block is installed on the outer side wall of the water-blocking block. The locking block is fixedly connected to the water-blocking block and the water-cut groove through bolts, and the water-blocking block is in close fit with the water-cut groove.

[0009] Further, the magnetic attraction unit includes a spring, a sliding groove, and a sliding magnetic attraction ring block. A sliding groove is opened on the side wall of the water-blocking block. A sliding magnetic attraction ring block is slidably connected to the side wall of the sliding groove. One end of a spring is welded to the side wall of the sliding magnetic attraction ring block, and the other end of the spring is welded to the side wall of the sliding groove.

[0010] Further, the dehydration and drying component includes a support frame, a dehydration and drying outer shell, a spiral blade, a spiral shaft, a filter water bucket, a second motor, a dehydration port magnetic attraction ring block, and a discharge storage unit. A support frame is arranged on one side of the water tank. The top of the support frame is provided with a dehydration and drying outer shell. The bottom of the dehydration and drying outer shell is fixedly connected with a second motor through bolts. The output end of the second motor passes through the dehydration and drying outer shell and is connected to a spiral shaft through a coupling. A spiral blade is welded to the side wall of the spiral shaft. A filter water bucket is fixedly connected to the inner side wall of the dehydration and drying outer shell. A dehydration port magnetic attraction ring block is fixedly installed on the inner side wall of the dehydration and drying outer shell close to the second circulation pipe. A discharge storage unit is arranged on the inner side wall of the filter water bucket.

[0011] Further, the discharge storage unit includes a water-blocking top cover, a discharge port, a discharge plate, and a collection groove. A water-blocking top cover is fixedly connected to the inner side wall of the filter water bucket. A discharge plate is fixedly connected to the outer side wall of the filter water bucket. A discharge port is integrally formed on the outer side wall of the dehydration and drying outer shell. A collection groove is arranged on one side of the dehydration and drying outer shell.

[0012] Furthermore, the cooling assembly includes a cooling circulation water pump, a cooling pipe, a fan, a heat conducting plate, and a heat insulation block. The outer side wall of the water tank is fixedly connected with the heat conducting plate, the cooling pipe is arranged inside the heat conducting plate, the top of the water tank is fixedly connected with the heat insulation block, the cooling circulation water pump is fixedly connected to the top of the heat insulation block, the fan is arranged on the outer side wall of the heat conducting plate, and both ends of the cooling pipe are fixedly installed with the output end and the input end of the cooling circulation water pump.

[0013] Furthermore, the cutting knives are circumferentially and arrayedly distributed along the axis of the rotating rod, the number of the cutting knives is N, and N≥2.

[0014] In summary, the beneficial effects of the present utility model are as follows:

[0015] By adding a water cutting assembly, the present utility model enables the collection of fine debris generated during the wear of the cutting knives during the water cutting process. By adding a dehydration and centrifugal drying assembly, the present utility model enables the secondary collection of small debris generated by the equipment before the particles are separated from the time and enter the second circulation pipe. By adding a cooling assembly, the water circulating inside the water tank is cooled and controlled. By adding a circulation pump, the water flow in the first circulation pipe, the second circulation pipe, and the third circulation pipe is circulated, thereby driving the particles to circulate in the equipment. The utility model can cool by controlling the water temperature and collect the fine debris generated by the wear of the equipment, which can not only improve the quality of the product and the granulation efficiency, but also have the beneficial effect of extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic top view of the present utility model;

[0018] Figure 3 is a schematic right view of the present utility model;

[0019] Figure 4 is the present utility model Figure 2 is a schematic A-A sectional view;

[0020] Figure 5 is the present utility model Figure 2 is a schematic B-B sectional view;

[0021] Figure 6 is the present utility model Figure 3 is a schematic C-C sectional view;

[0022] Figure 7 is the present utility model Figure 4 is an enlarged schematic view of part A of the present utility model;

[0023] Figure 8This is an enlarged internal schematic diagram of the cooling component of the present utility model.

[0024] As shown in the figure: 1 - extruder, 2 - moving vehicle frame, 3 - dehydration and drying outer shell, 4 - first motor, 5 - water cutting groove, 6 - locking block, 7 - first circulation pipe, 8 - second circulation pipe, 9 - third circulation pipe, 10 - circulation water tank, 11 - collection tank, 12 - circulation pump, 13 - water blocking block, 14 - cutting knife, 15 - discharge port, 16 - filter water bucket, 17 - second motor, 18 - support frame, 19 - spiral blade, 20 - dehydration port magnetic attraction ring block, 21 - sliding magnetic attraction ring block, 22 - sliding groove, 23 - spring, 24 - cooling circulation water pump, 25 - cooling pipe, 26 - heat conducting plate, 27 - rotating rod, 28 - spiral shaft, 29 - discharge plate, 30 - heat insulation block, 31 - water blocking top cover, 32 - fan. Specific embodiments

[0025] The following will further elaborate on the present utility model in conjunction with the attached Figure 1-8 drawings:

[0026] An embodiment of the present utility model discloses a hot - plastic elastomer water - cutting granulation device. As shown in Figure 1 , Figure 2 , Figure 3 , Figure 5 , it includes an extruder 1. A water - cutting groove 5 is fixedly connected to the discharge port of the extruder 1. A water - cutting component is arranged on the inner side wall of the water - cutting groove 5. One end of a first circulation pipe 7 is fixedly connected to the top of the water - cutting groove 5. The other end of the first circulation pipe 7 is fixedly installed with a dehydration and drying component. One end of a second circulation pipe 8 is fixedly installed at the bottom of the dehydration and drying component. The other end of the second circulation pipe 8 is fixedly installed at the input end of a circulation water tank 10. Cooling components are respectively arranged on two opposite side walls of the circulation water tank 10. One end of a third circulation pipe 9 is installed and connected to the output end of the circulation water tank 10. The other end of the third circulation pipe 9 is connected to the bottom of the water - cutting groove 5. A circulation pump 12 is arranged at one end of the third circulation pipe 9 close to the circulation water tank 10. In this embodiment, by adding a water - cutting component, fine debris generated when the cutting knife 14 wears during the water - cutting process can be collected. By adding a dehydration and drying component, small debris generated by the equipment can be secondarily collected before the particles are separated and enter the second circulation pipe 8. By adding a cooling component, the water circulating inside the circulation water tank 10 can be cooled and controlled. By adding a circulation pump 12, the water flow in the first circulation pipe 7, the second circulation pipe 8, and the third circulation pipe 9 can be circulated, thereby driving the particles to circulate in the equipment.

[0027] As shown in Figure 1 , Figure 4 , Figure 5As shown in the figure, the water cutting assembly includes a cutting knife 14, a rotating rod 27, a water blocking block 13, a locking block 6, a moving vehicle frame 2, and a first motor 4. A moving vehicle frame 2 is arranged on one side of the extruder 1 close to the water cutting groove 5. The top of the moving vehicle frame 2 is fixedly connected with a first motor 4 through bolts. The output end of the first motor 4 is connected with a rotating rod 27 through a coupling. A cutting knife 14 is arranged at the end of the rotating rod 27. A water blocking block 13 is arranged on the side of the rotating rod 27 close to the first motor 4. Magnetic attraction units are respectively arranged on the upper and lower sides of the water blocking block 13. A locking block 6 is installed on the outer side wall of the water blocking block 13. The locking block 6 is fixedly connected with the water blocking block 13 and the water cutting groove 5 through bolts. The water blocking block 13 is closely attached to the water cutting groove 5. In this embodiment, by adding the first motor 4, the first motor 4 rotates to drive the rotating rod 27 to rotate and drive the cutting knife 14. The material is extruded from the extruder 1 and cut into particles under the action of the cutting knife 14, and then is pushed by the water flow to circulate.

[0028] As Figure 5 、 Figure 7 shown in the figure, the magnetic attraction unit includes a spring 23, a sliding groove 22, and a sliding magnetic attraction ring block 21. A sliding groove 22 is formed on the side wall of the water blocking block 13. The side wall of the sliding groove 22 is slidably connected with a sliding magnetic attraction ring block 21. One end of a spring 23 is welded to the side wall of the sliding magnetic attraction ring block 21, and the other end of the spring 23 is welded to the side wall of the sliding groove 22. In this embodiment, by adding the sliding magnetic attraction ring block 21, the sliding magnetic attraction ring block 21 slides into the first circulation pipe 7 and the third circulation pipe 9 under the action of the spring 23, so that the inner side wall of the sliding magnetic attraction ring block 21 absorbs the worn debris of the cutting knife, so as to prevent the scattered fine debris from circulating in the machine and damaging the inside of the machine body, resulting in a reduction in the service life of the equipment.

[0029] As Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 shown in the figure, the dehydration and drying assembly includes a support frame 18, a dehydration and drying outer shell 3, a spiral blade 19, a spiral shaft 28, a filter water bucket 16, a second motor 17, a dehydration port magnetic attraction ring block 20, and a discharge storage unit. A support frame 18 is arranged on one side of the circulation water tank 10. The top of the support frame 18 is provided with a dehydration and drying outer shell 3. The bottom of the dehydration and drying outer shell 3 is fixedly connected with a second motor 17 through bolts. The output end of the second motor 17 passes through the dehydration and drying outer shell 3 and is connected with a spiral shaft 28 through a coupling. A spiral blade 19 is welded to the side wall of the spiral shaft. The inner side wall of the dehydration and drying outer shell 3 is fixedly connected with a filter water bucket 16. A dehydration port magnetic attraction ring block 20 is fixedly installed on the inner side wall of the dehydration and drying outer shell 3 close to the second circulation pipe 8. A discharge storage unit is arranged on the inner side wall of the filter water bucket 16. In this embodiment, by adding the filter water bucket 16, the water flow and particles brought by the second circulation pipe 8 are separated, and then the water flow flows to the third circulation pipe 9, and the particles are carried out by the spiral blade 19.

[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 5 shown, the discharge storage unit includes a water-blocking top cover 31, a discharge port 15, a discharge plate 29, a collection tank 11. The inner side wall of the filter water bucket 16 is fixedly connected with the water-blocking top cover 31, the outer side wall of the filter water bucket 16 is fixedly connected with the discharge plate 29, the outer side wall of the dehydration and drying shell 3 is integrally formed with the discharge port 15, and a collection tank 11 is arranged on one side of the dehydration and drying shell 3. In this embodiment, by adding the discharge plate 29, the second motor 17 drives the rotating rod 27 to drive the spiral shaft 28 and the spiral blades 19, and the particles are transmitted to the discharge plate 29 by the spiral blades 19 and slide into the discharge port 15, and then fall into the collection tank 11.

[0031] As Figure 3 , Figure 8 shown, the cooling assembly includes a cooling circulation water pump 24, a cooling pipe 25, a fan 32, a heat conduction plate 26, and a heat insulation block 30. The outer side wall of the circulation water tank 10 is fixedly connected with the heat conduction plate 26, the cooling pipe 25 is arranged inside the heat conduction plate 26, the heat insulation block 30 is fixedly connected to the top of the circulation water tank 10, the cooling circulation water pump 24 is fixedly connected to the top of the heat insulation block 30, the fan 32 is arranged on the outer side wall of the heat conduction plate 26, and both ends of the cooling pipe 25 are fixedly installed with the output end and the input end of the cooling circulation water pump 24. In this embodiment, by adding the cooling circulation water pump 24, the cooling pipe 25 is cooled, and then the fan 32 blows the cooled air onto the heat conduction plate 26, so that the circulation water tank 10 close to the heat conduction plate 26 is cooled, and further the water flow cooling is more conducive to cooling the particles and avoiding sticking of materials.

[0032] As Figure 4 , Figure 5 shown, the cutting knives 14 are circumferentially and arrayedly distributed along the axis of the rotating rod 27, the number of the cutting knives 14 is N, and N≥2. In this embodiment, by increasing the number of the cutting knives 14, when cutting the particles, the cutting is more uniform, which is more conducive to more efficient cutting and higher quality.

[0033] The implementation principle of the embodiment of the present utility model is as follows:

[0034] During use, first, the operator moves the moving frame 2, causing the rotating rod 27 to drive the water blocking block 13 to fit against the water cutting groove 5, so that the inner side wall of the water cutting groove 5 and the cutting knife 14 are in mutual contact. Furthermore, under the action of the spring 23, the sliding magnetic suction ring block 21 slides into the first circulation pipe 7 and the third circulation pipe 9. By turning on the first motor 4 to drive the rotation of the rotating rod 27 and drive the cutting knife 14, the inner side wall of the sliding magnetic suction ring block 21 absorbs the fine debris of the worn cutting knife. The circulating pump 12 is turned on to make the water in the first circulation pipe 7, the second circulation pipe 8, and the third circulation pipe 9 circulate in sequence. The material is extruded from the extruder 1 and cut into particles under the action of the cutting knife 14, and then the particles are driven by the water flow to flow into the inside of the dehydration and drying housing 3, so that the water and the particles slide down from the water blocking top cover 31, and the separation of the particles and the water is completed through the filter water bucket 16. The fine debris generated by the wear of the equipment is absorbed through the dehydration port magnetic suction ring block 20;

[0035] Secondly, the water flow flows into the circulation water tank 10 through the second circulation pipe 8, so that the cooling pipe 25 is cooled under the action of the cooling circulation water pump 24. Then, the cooled air is blown onto the heat conducting plate 26 by the fan 32, so that the circulation water tank 10 in contact with the heat conducting plate 26 is cooled. The cooled water in the circulation water tank 10 flows out through the output end, and then flows through the circulating pump 12 to the water cutting groove 5 to complete the circulation;

[0036] Finally, the second motor 17 is started to drive the rotating rod 27 to drive the spiral shaft 28 and the spiral blades 19. The particles are conveyed to the discharge port 15 through the spiral blades 19 and then fall into the collection tank 11.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Each component mentioned in the present invention is a common technology in the existing field. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermoplastic elastomer water-cutting granulation device, comprising an extruder (1), characterized in that: A water cutting groove (5) is fixedly connected to the discharge port of the extruder (1), and a water cutting assembly is arranged on the inner wall of the water cutting groove (5). One end of a first circulation pipe (7) is fixedly connected to the top of the water cutting groove (5), and a dehydration and drying assembly is fixedly installed on the other end of the first circulation pipe (7). One end of a second circulation pipe (8) is fixedly installed on the bottom of the dehydration and drying assembly, and the other end of the second circulation pipe (8) is fixedly installed on the input end of a circulation water tank (10). Two opposite side walls of the circulation water tank (10) are respectively provided with cooling assemblies. One end of a third circulation pipe (9) is installed and connected to the output end of the circulation water tank (10), and the other end of the third circulation pipe (9) is connected to the bottom of the water cutting groove (5). A circulation pump (12) is arranged at one end of the third circulation pipe (9) close to the circulation water tank (10).

2. A thermoplastic elastomer water-cutting granulation device according to claim 1, characterized in that: The water cutting assembly comprises a cutting blade (14), a rotating rod (27), a water retaining block (13), a locking block (6), a movable frame (2), and a first motor (4). The movable frame (2) is arranged on the side of the extruder (1) close to the water cutting groove (5). The top of the movable frame (2) is fixedly connected to the first motor (4) by bolts. The output end of the first motor (4) is connected to the rotating rod (27) by a coupling. The end of the rotating rod (27) is provided with a cutting blade (14). The side of the rotating rod (27) close to the first motor (4) is provided with a water retaining block (13). The upper and lower sides of the water retaining block (13) are respectively provided with magnetic suction units. The outer wall of the water retaining block (13) is installed with a locking block (6). The locking block (6) is fixedly connected to the water retaining block (13) and the water cutting groove (5) by bolts. The water retaining block (13) is tightly fitted with the water cutting groove (5).

3. A thermoplastic elastomer water-cutting granulation device according to claim 2, characterized in that: The magnetic attraction unit comprises a spring (23), a sliding groove (22), and a sliding magnetic attraction ring block (21); a side wall of the water retaining block (13) is provided with a sliding groove (22); the side wall of the sliding groove (22) is slidably connected to the sliding magnetic attraction ring block (21); one end of the spring (23) is welded to the side wall of the sliding magnetic attraction ring block (21); and the other end of the spring (23) is welded to the side wall of the sliding groove (22).

4. A thermoplastic elastomer water-cutting granulation device according to claim 1, characterized in that: The dehydration and drying assembly comprises a support frame (18), a dehydration and drying shell (3), a spiral blade (19), a spiral shaft (28), a water filter barrel (16), a second motor (17), a dehydration outlet magnetic ring block (20), and a discharge storage unit. A support frame (18) is arranged on one side of the circulating water tank (10). A dehydration and drying shell (3) is arranged on the top of the support frame (18). The bottom of the dehydration and drying shell (3) is fixedly connected to the second motor (17) by bolts. The output end of the second motor (17) passes through the dehydration and drying shell (3) and is connected to the spiral shaft (28) by a coupling. The side wall of the spiral shaft (28) is welded with a spiral blade (19). The inner side wall of the dehydration and drying shell (3) is fixedly connected to the water filter barrel (16). The inner side wall of the dehydration and drying shell (3) close to the second circulation pipe (8) is fixedly installed with a dehydration outlet magnetic ring block (20). The discharge storage unit is arranged on the inner side wall of the water filter barrel (16).

5. A thermoplastic elastomer water-cutting granulation device according to claim 4, characterized in that: The discharge storage unit comprises a water retaining top cover (31), a discharge port (15), a discharge plate (29), and a collecting trough (11); the inner wall of the water filter barrel (16) is fixedly connected to the water retaining top cover (31); the outer wall of the water filter barrel (16) is fixedly connected to the discharge plate (29); the outer wall of the dehydration and spin-drying shell (3) is integrally formed with the discharge port (15); and a collecting trough (11) is provided on one side of the dehydration and spin-drying shell (3).

6. A thermoplastic elastomer water-cutting granulation device according to claim 1, characterized in that: The cooling assembly comprises a cooling circulating water pump (24), a cooling pipe (25), a fan (32), a heat conducting plate (26), and a heat insulating block (30); the outer wall of the circulating water tank (10) is fixedly connected to the heat conducting plate (26); the cooling pipe (25) is arranged inside the heat conducting plate (26); the top of the circulating water tank (10) is fixedly connected to the heat insulating block (30); the top of the heat insulating block (30) is fixedly connected to the cooling circulating water pump (24); the outer wall of the heat conducting plate (26) is provided with a fan (32); and both ends of the cooling pipe (25) are fixedly installed with the output end and the input end of the cooling circulating water pump (24).

7. A thermoplastic elastomer water-cutting granulation device according to claim 2, characterized in that: The cutting knives (14) are distributed in an array along the circumference of the axis of the rotating rod (27), and the number of the cutting knives (14) is N, where N≥2.

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