Feeding sleeve structure of granulator

Abstract

The utility model relates to the technical field of granulators, and provides a feeding sleeve structure of a granulator, the feeding sleeve structure comprises a sleeve body, a feeding hopper, an anti-blocking structure and a cooling structure, the cooling structure is used for cooling the sleeve body; a feeding hole is formed in the sleeve body, and the feeding hopper is communicated with the feeding hole; the anti-blocking structure comprises a motor and a screw rod, the screw rod is rotationally installed in the feeding hopper, and the motor is used for driving the screw rod to rotate. According to the feeding sleeve structure of the granulator, softening and blocking of raw materials at the feeding port are reduced.

Description

Technical Field

[0001] This application relates to the technical field of granulators, and particularly to a feeding sleeve structure of a granulator. Background Art

[0002] As the front part of the barrel, the feeding sleeve is a key part of the granulator, which is used to connect with the feeding equipment to receive raw materials in the form of coil materials or shredded materials and process them in the extrusion process; the feeding sleeve is usually designed as a simple tubular structure with a feeding port, and according to the differences in the connected feeding equipment, the feeding port can be set above or on the side wall.

[0003] However, since the barrel needs to be heated to melt the raw materials into a viscous flow state, after the granulator works for a long time, the temperature of the feeding sleeve rises, which makes the raw materials easy to soften and block at the feeding port. Utility Model Content

[0004] In order to reduce the softening and blocking of raw materials at the feeding port, this application provides a feeding sleeve structure of a granulator.

[0005] The feeding sleeve structure of a granulator provided by this application adopts the following technical solutions:

[0006] A feeding sleeve structure of a granulator includes a sleeve body, a feeding hopper, an anti-blocking structure and a cooling structure, and the cooling structure is used to cool the sleeve body; the sleeve body is provided with a feeding port, and the feeding hopper is communicated with the feeding port; the anti-blocking structure includes a motor and a screw, the screw is rotatably installed in the feeding hopper, and the motor is used to drive the screw to rotate.

[0007] By adopting the above technical solutions, by setting the cooling structure, the temperature of the sleeve body can be reduced, and the situation that the raw materials soften on the surface of the feeding port due to the long-term use of the granulator can be reduced; and by driving the motor to rotate the screw, the raw materials are stirred and pushed by the thread of the screw, thereby reducing the possibility of blockage of the raw materials at the feeding port.

[0008] Optionally, an installation block is installed on the inner wall of the feeding hopper, and the screw is rotatably installed on the installation block; a rotating groove is opened in the installation block, a first bevel gear is rotatably installed in the rotating groove, and the first bevel gear is connected to one end of the screw close to the installation block; a second bevel gear meshing with the first bevel gear is arranged in the rotating groove, and the motor is installed on the outer wall of the feeding hopper and connected to the second bevel gear.

[0009] By adopting the above technical solution, through the meshing of the first bevel gear and the second bevel gear, when the motor rotates, the screw can be driven to rotate in the feed hopper, so as to facilitate the screw to push and stir the raw materials; and by arranging the motor on the outer wall of the feed hopper, it is convenient for the staff to carry out maintenance and reduce the situation that the raw materials soften near the motor due to the long-term operation of the motor.

[0010] Optionally, the screw is connected to the first bevel gear through a connecting rod, and the connecting rod is fixed to the bevel gear; an installation groove for the screw to be inserted is formed on one side of the connecting rod away from the bevel gear, a fixing groove is formed on the outer wall of the screw, a fixing rod is movably installed in the fixing groove, a spring is arranged between the fixing rod and the fixing groove, and the spring is kept in a compressed state; a fixing hole for the fixing rod to be inserted is formed on the screw.

[0011] By adopting the above technical solution, by inserting the screw into the installation groove and making the fixing rod inserted into the fixing hole under the elastic force of the spring, the connection between the screw and the connecting rod can be completed, so that the screw rotates in the feed hopper; and when the screw is damaged, by removing the insertion of the fixing rod into the fixing hole, the screw can be taken out of the feed hopper for replacement and maintenance to keep the normal use of the anti-blocking structure.

[0012] Optionally, reinforcing strips are arranged on the outer wall of the screw, and reinforcing grooves for the reinforcing strips to be inserted are formed on the inner wall of the installation groove.

[0013] By adopting the above technical solution, by arranging the reinforcing strips, the contact area between the screw and the connecting rod can be increased, thereby increasing the stability during the rotation of the screw and reducing the situation that the fixing rod breaks during the rotation of the screw.

[0014] Optionally, one end of the screw away from the motor is located inside the feed port.

[0015] By adopting the above technical solution, by inserting one end of the screw into the feed port, the situation of blockage of the raw materials in the feed port can be further reduced.

[0016] Optionally, an inclined surface is arranged at one end of the mounting block away from the feed port.

[0017] By adopting the above technical solution, by arranging the inclined surface, the situation of raw materials staying on the upper surface of the mounting block can be reduced, thereby reducing the possibility of formula pollution caused by the subsequent production of other plastic particles by the granulator.

[0018] Optionally, the cooling structure includes a cooling medium, a circulation pump, and two circulation pipes. The sleeve body is provided with cooling grooves, and the cooling medium is arranged in the cooling grooves; the two circulation pipes are respectively connected to the water inlet and the water outlet of the circulation pump, and the ends of the two circulation pipes away from the circulation pump are respectively connected to the two ends of the cooling groove, and a cooling device is installed on one of the circulation pipes.

[0019] By adopting the above technical solution, the circulation pump pumps the cooling medium from the cooling source into the water inlet pipe, and sends it into the cooling groove of the sleeve body through the water outlet pipe. The cooling medium is in full contact with the sleeve body in the cooling groove, and after absorbing the heat generated by the sleeve body, the cooling device can cool down the cooling medium, and then it flows back to the cooling groove through the other circulation pipe for re-cooling; this cycle is repeated to ensure that the sleeve body always remains within a suitable working temperature range, reducing the possibility of the raw material softening at the feed inlet.

[0020] Optionally, the cooling grooves are arranged in a spiral shape along the axis direction of the sleeve body.

[0021] By adopting the above technical solution, the spiral cooling groove design increases the cooling area and improves the cooling efficiency.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By providing a cooling structure and an anti-blocking structure, the cooling medium can absorb heat from the sleeve body, thereby ensuring that the sleeve body always remains within a suitable working temperature range, reducing the possibility of the raw material softening at the feed inlet; and by driving the motor to rotate the screw, the screw thread is used to stir and push the raw material, thereby reducing the possibility of the raw material being blocked at the feed inlet.

[0024] 2. Through the insertion and cooperation of the fixing rod and the fixing hole, the disassembly and assembly of the screw and the connecting rod can be completed, so as to facilitate the staff to repair the screw to maintain the normal use of the anti-blocking structure. Description of the Drawings

[0025] Figure 1 is a partial cross-sectional view of this embodiment;

[0026] Figure 2 is Figure 1 a partial enlarged view of part A of

[0027] Figure 3 is a partial cross-sectional view of the connecting rod of this embodiment.

[0028] Description of reference numerals: 1. Sleeve body; 11. Feed inlet; 12. Cooling tank; 2. Feed hopper; 21. Mounting block; 22. Inclined surface; 23. Rotating groove; 3. Anti-blocking structure; 31. Screw; 311. Fixed groove; 312. Reinforcing strip; 32. Motor; 33. Connecting rod; 331. Mounting groove; 332. Fixed hole; 333. Reinforcing groove; 34. First bevel gear; 35. Second bevel gear; 36. Fixed rod; 37. Spring; 4. Cooling structure; 41. Circulation pump; 42. Circulation pipe; 43. Cooling equipment. Detailed implementation manners

[0029] The following further elaborates on this application in conjunction with the attached Figures 1-3 drawings.

[0030] The embodiment of this application discloses a feeding sleeve structure of a granulator.

[0031] Referring to Figure 1 , a feeding sleeve structure of a granulator includes a sleeve body 1, a feed hopper 2, an anti-blocking structure 3 and a cooling structure 4. The cooling structure 4 is used to cool the sleeve body 1; the sleeve body 1 is provided with a feed inlet 11, and the feed hopper 2 is communicated with the feed inlet 11 for adding raw materials into the sleeve body 1.

[0032] Referring to Figure 2 , multiple groups of anti-blocking structures 3 are provided, and all the anti-blocking structures 3 are installed in the feed hopper 2 and arranged at intervals along the axis direction of the feed hopper 2; the anti-blocking structure 3 includes a screw 31, a motor 32 and a connecting rod 33. The inner wall of the feed hopper 2 is provided with a mounting block 21, and the mounting block 21 is welded to the inner wall of the feed hopper 2; and an inclined surface 22 is provided on the side of the mounting block 21 away from the feed inlet 11. The inclined surface 22 can reduce the situation of raw materials staying on the upper surface of the mounting block 21, and reduce the situation of formula pollution caused by subsequent production of other plastic particles by the granulator.

[0033] The mounting block 21 is provided with a rotating groove 23. A first bevel gear 34 and a second bevel gear 35 meshing with the first bevel gear 34 are rotatably installed in the rotating groove 23. The connecting rod 33 is rotatably installed on the mounting block 21 and fixed to the first bevel gear 34; the motor 32 is fixed to the outer wall of the feed inlet 11 and the output shaft of the motor 32 passes through the feed hopper 2 and is connected to the second bevel gear 35. By rotating the motor 32, the connecting rod 33 can rotate under the meshing of the first bevel gear 34 and the second bevel gear 35.

[0034] At the same time, referring to Figure 1, one end of the connecting rod 33 away from the mounting block 21 is provided with a mounting groove 331, the screw rod 31 is inserted into the mounting groove 331, and a fixing hole 332 communicating with the mounting groove 331 is provided on the outer wall of the connecting rod 33; a fixing groove 311 is provided on the outer wall of the screw rod 31, a fixing rod 36 is movably installed in the fixing groove 311, and a spring 37 is arranged between the fixing rod 36 and the inner wall of the fixing groove 311, and the elastic force of the spring 37 is used to drive the fixing rod 36 to move toward the side away from the fixing groove 311; that is, when the screw rod 31 is installed in the connecting rod 33, the fixing rod 36 penetrates through the fixing hole 332 and is exposed to the outside under the elastic force of the spring 37, and one end of the screw rod 31 away from the mounting block 21 is located in the feed port 11.

[0035] When connecting the screw rod 31 and the connecting rod 33, insert the screw rod 31 into the connecting rod 33, and when the fixing groove 311 and the fixing hole 332 are arranged opposite to each other, the fixing rod 36 is inserted into the fixing hole 332 and exposed to the outside under the elastic force of the spring 37, so as to complete the connection between the screw rod 31 and the connecting rod 33; the insertion fit between the fixing rod 36 and the fixing hole 332 can disassemble and assemble the screw rod 31 on the mounting block 21, so as to facilitate the replacement and maintenance of the screw rod 31, thereby maintaining the normal use of the anti-blocking structure 3.

[0036] Refer to Figure 3 , reinforcing strips 312 are arranged on the outer wall of the screw rod 31, and reinforcing grooves 333 for inserting the reinforcing strips 312 are provided on the inner wall of the mounting groove 331; by providing the reinforcing strips 312, the contact area between the screw rod 31 and the connecting rod 33 can be increased, thereby increasing the stability during the rotation of the screw rod 31 and reducing the situation of the fixing rod 36 breaking during the rotation of the screw rod 31.

[0037] Refer to Figure 1 , the cooling structure 4 includes a cooling medium, a circulation pump 41 and two circulation pipes 42. The sleeve body 1 is provided with a cooling groove 12, and the cooling groove 12 is arranged in a thread shape along the axis direction of the sleeve body 1. The two circulation pipes 42 are respectively installed at both ends of the cooling groove 12, and one ends of the two circulation pipes 42 away from the sleeve body 1 are respectively communicated with the water inlet and the water outlet of the circulation pump 41; a cooling device 43 is installed on one of the circulation pipes 42, the cooling medium is arranged in the cooling groove 12, and the cooling groove 12 is used for cooling with the cooling medium.

[0038] By setting the cooling groove 12 in a thread shape, the cooling area can be increased, and the cooling efficiency of the sleeve body 1 can be improved; the circulation pump 41 pumps the cooling medium from the cooling source into the water inlet pipe and sends it into the cooling groove 12 of the sleeve body 1 through the water outlet pipe, ensuring that the sleeve body 1 always maintains within a suitable working temperature range and reducing the possibility of the raw material softening in the feed port 11.

[0039] The implementation principle of the feeding sleeve structure of a granulator in the embodiment of the present application is:

[0040] By setting the cooling structure 4, after the cooling medium fully contacts with the sleeve body 1 in the cooling tank 12 and absorbs the heat generated by it, the cooling device 43 cools down the cooling medium, and then it flows back to the cooling tank 12 through another circulation pipe 42 for re-cooling, reducing the possibility of the raw material softening in the feed port 11. And by driving the motor 32 to rotate the screw 31, the screw thread of the screw 31 is used to stir and push the raw material, thereby reducing the possibility of the raw material being blocked at the feed port 11.

[0041] The above is the preferred embodiment of the present application. It does not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A feeding sleeve structure of a granulator, characterized in that: The invention comprises a sleeve body (1), a feed hopper (2), an anti-blocking structure (3) and a cooling structure (4), wherein the cooling structure (4) is used to cool the sleeve body (1); the sleeve body (1) is provided with a feed port (11), and the feed hopper (2) is connected to the feed port (11); the anti-blocking structure (3) comprises a motor (32) and a screw (31), wherein the screw (31) is rotatably installed in the feed hopper (2), and the motor (32) is used to drive the screw (31) to rotate.

2. The feeding sleeve structure of a granulator according to claim 1, characterized in that: A mounting block (21) is mounted on the inner wall of the feed hopper (2), and the screw rod (31) is rotatably mounted on the mounting block (21); a rotation groove (23) is formed in the mounting block (21), and a first bevel gear (34) is rotatably mounted in the rotation groove (23), and the first bevel gear (34) is connected to an end of the screw rod (31) close to the mounting block (21); a second bevel gear (35) meshing with the first bevel gear (34) is arranged in the rotation groove (23), and the motor (32) is mounted on the outer wall of the feed hopper (2) and connected to the second bevel gear (35).

3. The feeding sleeve structure of a granulator according to claim 2, characterized in that: The screw rod (31) and the first bevel gear (34) are connected via a connecting rod (33), and the connecting rod (33) is fixed to the bevel gear; a mounting groove (331) for inserting the screw rod (31) is provided on a side of the connecting rod (33) away from the bevel gear; a fixing groove (311) is provided on an outer wall of the screw rod (31); a fixing rod (36) is movably installed in the fixing groove (311); a spring (37) is provided between the fixing rod (36) and the fixing groove (311), and the spring (37) is kept in a compressed state; and a fixing hole (332) for inserting the fixing rod (36) is provided on the screw rod (31).

4. The feeding sleeve structure of a granulator according to claim 3, characterized in that: The outer wall of the screw rod (31) is provided with a reinforcement strip (312), and the inner wall of the installation groove (331) is provided with a reinforcement groove (333) for inserting the reinforcement strip (312).

5. The feeding sleeve structure of a granulator according to claim 2, characterized in that: One end of the screw (31) away from the motor (32) is located in the feed port (11).

6. The feeding sleeve structure of a granulator according to claim 2, characterized in that: An inclined surface (22) is provided at one end of the mounting block (21) away from the feed port (11).

7. The feeding sleeve structure of a granulator according to claim 1, characterized in that: The cooling structure (4) comprises a cooling medium, a circulation pump (41) and two circulation pipes (42); the sleeve body (1) is provided with a cooling groove (12), and the cooling medium is arranged in the cooling groove (12); the two circulation pipes (42) are respectively connected to a water inlet and a water outlet of the circulation pump (41); one end of the two circulation pipes (42) away from the circulation pump (41) is respectively connected to two ends of the cooling groove (12); and one of the circulation pipes (42) is installed with a cooling device (43).

8. The feeding sleeve structure of a granulator according to claim 7, characterized in that: The cooling groove (12) is arranged in a spiral shape along the axial direction of the sleeve body (1).

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