Modified plastic particle extrusion equipment

Abstract

The utility model discloses modified plastic particle extrusion equipment which comprises a processing barrel, a discharging pipe is fixed on the outer side wall of one end of the processing barrel, a cooling assembly is arranged outside the discharging pipe, a forming plate b is arranged at the end, away from the processing barrel, of the discharging pipe, and a middle connecting plate is fixed on the side face of the forming plate b. A forming plate a is fixed to the end, away from the forming plate b, of the middle connecting plate, forming holes in the forming plate a and the forming plate b are different in shape, and a switching assembly for switching the forming plate a and the forming plate b is connected to the middle connecting plate; cold air is evenly and synchronously blown to the surfaces of the multiple discharging pipes in a refined mode through the cooling assembly, so that plastic strips in the discharging pipes are subjected to auxiliary heat dissipation and cooling, forming of the plastic strips is accelerated, follow-up pelletizing machining is facilitated, the forming plate b and the forming plate a are driven by the switching assembly to be transferred and switched, and the forming efficiency is improved. And therefore, the forming holes in different shapes are switched to shape the plastic strips, switching operation is convenient and labor-saving, and the switching efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic granule production, in particular to a modified plastic granule extrusion device. Background Technique

[0002] Modified plastics refer to plastic products that are processed and modified through methods such as filling, blending, and reinforcement on the basis of general plastics and engineering plastics, improving their performance in aspects such as flame retardancy, strength, impact resistance, and toughness. When existing modified plastic granules are produced, they are mostly extruded by an extruder and cut into granular form, and then cooled and shaped through a cooling pool.

[0003] For example, Chinese Patent Publication No. CN217292980U discloses a nylon plastic particle screw extrusion and pelletizing device, including an extruder. The glue outlet of the extruder is connected to a die tube. One end of the die tube is provided with a pelletizing mechanism. The pelletizing mechanism includes a sleeve. One end of the die tube is arranged inside the sleeve. One end of the sleeve is fixed with a gear ring. One side of the gear ring is provided with a gear. The gear and the gear ring are meshed. One side of the gear is provided with a driving motor. The gear is installed at the output end of the driving motor. The other end of the sleeve is provided with cutting knives. The cutting knives are distributed in a circular pattern centered on the axis of the die tube. Compared with the existing underwater pelletizing machine, this scheme integrates the cutting mechanism and the die, which is convenient for cutting and easy to maintain, reducing the occupied length of the overall underwater pelletizing machine. The internal pelletizing situation can be observed through an isolation cover, and problems can be promptly detected and repaired when they occur.

[0004] However, this device is not convenient for adjusting the switching of plastic granules with different cross-sectional shapes, and its functions are relatively single. At the same time, when the cutting knives are used for pelletizing, the temperature of the glue solution is relatively high, and part of the glue solution is likely to adhere to the surface of the cutting knives, affecting the cutting effect of the cutting knives.

[0005] Therefore, it is necessary to provide a modified plastic granule extrusion device to solve the above technical problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a modified plastic granule extrusion device to solve the problems raised in the above background technique.

[0007] To achieve the above object, the solution of the present utility model to solve the above technical problems is as follows: A modified plastic granule extrusion device, including a processing cylinder, the processing cylinder is arranged horizontally, and a hydraulic push rod is provided at one end of the processing cylinder. A feeding port is opened on the side surface of the processing cylinder, a cover plate is hinged in the feeding port, a push pressing plate fixed to the output end of the hydraulic push rod is slidably connected to the inner side wall of the processing cylinder. A plurality of through ports are opened on the side wall of the processing cylinder at the end far from the hydraulic push rod, and are equally spaced. A plurality of discharge pipes corresponding to the through ports one by one and communicating with the inside of the processing cylinder are fixed on the outer side wall of one end of the processing cylinder. A cooling component is arranged outside the discharge pipe. A forming plate b is provided at the end of the discharge pipe far from the processing cylinder. A middle connecting plate is fixed on the side surface of the forming plate b, and a forming plate a is fixed at the end of the middle connecting plate far from the forming plate b. A plurality of forming holes corresponding to the discharge pipes are opened on the side surfaces of the forming plate a and the forming plate b, and the shapes of the forming holes on the forming plate a and the forming plate b are different. A switching component for switching the forming plate a and the forming plate b is connected to the middle connecting plate.

[0008] As a further solution of the present utility model, the cooling component includes a head sleeve fixed to the end of the processing cylinder and covering the outside of the discharge pipe. A ventilation cavity is opened inside the head sleeve. Blowing holes communicating with the ventilation cavity are opened on the inner side wall of the head sleeve. An air inlet pipe communicating with the ventilation cavity is fixed on the outer side wall of the head sleeve. An exhaust port is opened on the side surface of the head sleeve.

[0009] As a further solution of the present utility model, the switching component includes a support plate fixed to the outer side wall of the head sleeve. A shaft rod with one end fixed to the middle connecting plate is rotatably connected to the support plate. A first gear is fixed to the end of the shaft rod far from the middle connecting plate. A first motor is fixed to the outer side wall of the head sleeve, and a second gear meshing with the first gear is fixed to the output end of the first motor.

[0010] As a further solution of the present utility model, a plurality of blowing holes are provided, and the plurality of blowing holes are equally spaced.

[0011] As a further solution of the present utility model, a second motor is fixed to the outer side wall of the head sleeve, and a cutting knife for granulation is fixed to the output end of the second motor.

[0012] As a further solution of the present utility model, a bottom plate is arranged below the processing cylinder. A base a and a base b are fixed to the top side surface of the bottom plate. The processing cylinder and the hydraulic push rod are respectively fixed to the tops of the base a and the base b.

[0013] This solution has the following working process:

[0014] 1. During the movement of the plastic raw material in the discharge pipe, the cooling component evenly and finely blows cold air synchronously onto the surfaces of multiple discharge pipes, thereby assisting in the heat dissipation and cooling of the plastic strips in the discharge pipes. The contact is uniform, the cooling efficiency is high, the formation of the plastic strips is accelerated, and the problem that plastic particles adhere to the surface of the cutting knife and affect the cutting effect of the cutting knife is avoided, facilitating subsequent pelletizing processing;

[0015] 2. The plastic strip raw material in the discharge pipe continues to pass through the forming holes, thereby shaping the cross-section of the plastic strip through the forming holes, making the cross-section of the plastic particles have a regular shape, and driving the cutting knife to rotate through the second motor. The plastic strip is cut and pelletized by the cutting knife. When it is necessary to change the cross-sectional shape of the plastic particles according to actual requirements, the switching component drives the forming plate b and the forming plate a to be transferred and switched, thereby switching the forming holes of different shapes to shape the plastic strip. The switching operation is convenient, labor-saving, and has a high switching efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the drawings and embodiments:

[0017] Figure 1 is the three-dimensional overall structure of the present invention Figure 1 ;

[0018] Figure 2 is the three-dimensional overall structure of the present invention Figure 2 ;

[0019] Figure 3 is Figure 2 the enlarged view of the structure at A in

[0020] Figure 4 is the schematic diagram of the overall sectional structure of the present invention;

[0021] Figure 5 is the schematic diagram of the partial structure of the discharge pipe of the present invention;

[0022] Figure 6 is the schematic diagram of the sectional structure of the cooling component of the present invention.

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Switching component; 101. Shaft rod; 102. First gear; 103. Second gear; 104. First motor; 105. Support plate; 2. Cooling component; 201. Ventilation cavity; 202. Blowing holes; 203. Air inlet pipe; 204. End sleeve; 3. Processing cylinder; 4. Forming plate a; 5. Forming plate b; 6. Forming holes; 7. Middle connecting plate; 8. Second motor; 9. Base a; 10. Base plate; 11. Base b; 12. Hydraulic push rod; 13. Cutting knife; 14. Discharge pipe; 15. Through port; 16. Pushing and pressing plate; 17. Exhaust port. Detailed implementation manners

[0025] The following further describes the present utility model in conjunction with embodiments.

[0026] Please refer to Figures 1-6, the present utility model provides a modified plastic granule extrusion device, including a processing cylinder 3, the processing cylinder 3 is arranged horizontally and a hydraulic push rod 12 is provided at one end of the processing cylinder 3. A feeding port is opened on the side surface of the processing cylinder 3, and a cover plate is hinged in the feeding port. A push pressing plate 16 fixed to the output end of the hydraulic push rod 12 is slidably connected to the inner side wall of the processing cylinder 3. A plurality of equally spaced through openings 15 are opened on the side wall of the processing cylinder 3 away from the hydraulic push rod 12. A plurality of discharge pipes 14 corresponding to the through openings 15 one by one and communicating with the inside of the processing cylinder 3 are fixed on the outer side wall of one end of the processing cylinder 3. A cooling assembly 2 is provided outside the discharge pipe 14. A forming plate b5 is provided at one end of the discharge pipe 14 away from the processing cylinder 3. A middle connecting plate 7 is fixed on the side surface of the forming plate b5. A forming plate a4 is fixed at one end of the middle connecting plate 7 away from the forming plate b5. A plurality of forming holes 6 corresponding to the discharge pipes 14 are opened on the side surfaces of the forming plate a4 and the forming plate b5. The shapes of the forming holes 6 on the forming plate a4 and the forming plate b5 are set differently. A switching assembly 1 for switching the forming plate a4 and the forming plate b5 is connected to the middle connecting plate 7. When in use, the plastic raw material heated to a semi-solid state with certain fluidity is put into the inside of the processing cylinder 3, and the hydraulic push rod 12 is started to work. The output end of the hydraulic push rod 12 drives the push pressing plate 16 to move inside the processing cylinder 3, so as to push and extrude the plastic raw material inside the processing cylinder 3 to the through openings 15 through the push pressing plate 16, and synchronously squeeze and refine it into the inside of a plurality of discharge pipes 14 through the plurality of through openings 15. The moving raw material in the discharge pipes 14 forms plastic strips. During the movement of the plastic raw material in the discharge pipes 14, the cooling assembly 2 evenly and finely blows cold air synchronously onto the surfaces of the plurality of discharge pipes 14, so as to assist in cooling and dissipating heat of the plastic strips in the discharge pipes 14, accelerate the forming of the plastic strips, avoid the problem that plastic granules adhere to the surface of the cutting knife and affect the cutting effect of the cutting knife, facilitate subsequent granulation processing. The plastic strip raw material in the discharge pipes 14 continues to pass through the forming holes 6, so as to shape the cross section of the plastic strips through the forming holes 6, make the cross section of the plastic granules have a regular shape, and drive the cutting knife 13 to rotate through the second motor 8, and cut and granulate the plastic strips through the cutting knife 13. When it is necessary to change the cross-sectional shape of the plastic granules according to actual needs, the forming plate b5 and the forming plate a4 are driven to transfer and switch through the switching assembly 1, so as to switch the forming holes 6 of different shapes to shape the plastic strips. The switching operation is convenient, labor-saving and has high switching efficiency.

[0027] Further, as Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, it is worth specifically explaining that the cooling component 2 includes an end sleeve 204 fixed to the end of the processing cylinder 3 and covering the outside of the discharge pipe 14. A ventilation cavity 201 is formed inside the end sleeve 204. Blowing holes 202 communicating with the ventilation cavity 201 are formed on the inner side wall of the end sleeve 204. There are multiple blowing holes 202, and the multiple blowing holes 202 are equidistantly distributed. An air inlet pipe 203 communicating with the ventilation cavity 201 is fixed on the outer side wall of the end sleeve 204. An exhaust port 17 is formed on the side surface of the end sleeve 204. During the movement of the plastic raw material in the discharge pipe 14, the air inlet pipe 203 is externally connected to an air pump, and cold air is conveyed into the ventilation cavity 201 through the air inlet pipe 203 and is synchronously blown onto the surfaces of the multiple discharge pipes 14 in a surrounding and uniformly refined manner through the multiple blowing holes 202, so as to assist in cooling the plastic strips in the discharge pipe 14, accelerate the shaping of the plastic strips, facilitate subsequent pelletizing processing, reduce the adhesion of plastic particles to the surface of the cutting knife 13, and improve the pelletizing effect.

[0028] Further, as shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, it is worth specifically explaining that the switching component 1 includes a support plate 105 fixed to the outer side wall of the end sleeve 204. A shaft rod 101 with one end fixed to the middle connection plate 7 is rotatably connected to the support plate 105. A first gear 102 is fixed to the end of the shaft rod 101 away from the middle connection plate 7. A first motor 104 is fixed to the outer side wall of the end sleeve 204. A second gear 103 meshing with the first gear 102 is fixed to the output end of the first motor 104. When it is necessary to change the cross-sectional shape of the plastic particles according to actual needs, the first motor 104 drives the second gear 103 to rotate. Through the cooperation of the second gear 103 and the first gear 102, the shaft rod 101 and the middle connection plate 7 are driven to rotate, and then the forming plate b5 and the forming plate a4 are driven to transfer and switch to the port of the end sleeve 204, so as to switch different shaped forming holes 6 to shape the cross-section of the plastic strip. The switching operation is convenient, labor-saving, and has high switching efficiency.

[0029] This solution has the following working process: Put the plastic raw material heated to a semi-solid state with a certain fluidity into the interior of the processing cylinder 3, start the hydraulic push rod 12 to work. The output end of the hydraulic push rod 12 drives the push plate 16 to move inside the processing cylinder 3, so as to push and extrude the plastic raw material inside the processing cylinder 3 to the through-port 15 through the push plate 16, and synchronously squeeze it into the multiple discharge pipes 14 through the segmentation and refinement of the multiple through-ports 15. The moving raw material in the discharge pipes 14 forms plastic strips. During the movement of the plastic raw material in the discharge pipes 14, cold air is conveyed into the ventilation cavity 201 through the air inlet pipe 203, and is synchronously blown onto the surfaces of the multiple discharge pipes 14 in a surrounding and evenly refined manner through the multiple blowing holes 202, so as to assist in cooling and dissipating heat of the plastic strips in the discharge pipes 14, accelerate the formation of the plastic strips, facilitate subsequent pelletizing processing. The plastic strip raw material in the discharge pipes 14 continues to pass through the forming holes 6, so as to shape the cross-section of the plastic strips through the forming holes 6, making the cross-section of the plastic pellets have a regular shape, and drive the cutting knife 13 to rotate through the second motor 8, and cut and pelletize the plastic strips through the cutting knife 13. When it is necessary to change the cross-sectional shape of the plastic pellets according to actual needs, drive the second gear 103 to rotate through the first motor 104, drive the shaft rod 101 and the middle connection plate 7 to rotate through the cooperation of the second gear 103 and the first gear 102, and then drive the forming plate b5 and the forming plate a4 to transfer and switch to the port of the end sleeve 204, so as to switch the forming holes 6 of different shapes to shape the cross-section of the plastic strips.

[0030] Further, as Figure 1 and Figure 2 shown, it is specifically worth noting that a second motor 8 is fixed on the outer side wall of the end sleeve 204, and a cutting knife 13 for pelletizing is fixed on the output end of the second motor 8; during specific work, drive the cutting knife 13 to rotate through the output end of the second motor 8, so as to cut and pelletize the plastic strips extruded from the forming holes 6 through the cutting knife 13.

[0031] Further, as Figure 1 and Figure 4 shown, it is specifically worth noting that a bottom plate 10 is arranged below the processing cylinder 3, a base a9 and a base b11 are fixed on the top side surface of the bottom plate 10, and the processing cylinder 3 and the hydraulic push rod 12 are respectively fixed on the tops of the base a9 and the base b11.

[0032] In summary, during the movement of the plastic raw material in the discharge pipe 14, the cooling component 2 evenly and finely blows cold air synchronously onto the surfaces of multiple discharge pipes 14, thereby assisting in heat dissipation and cooling of the plastic strips in the discharge pipes 14, accelerating the formation of the plastic strips, facilitating subsequent pelletizing processing. When it is necessary to change the cross-sectional shape of the plastic pellets according to actual requirements, the switching component 1 drives the forming plate b5 and the forming plate a4 to transfer and switch, thereby switching the forming holes 6 of different shapes to shape the plastic strips. The switching operation is convenient, labor-saving, and has a high switching efficiency.

[0033] The first motor 104, the second motor 8, and the hydraulic push rod 12 can be purchased on the market. The first motor 104, the second motor 8, and the hydraulic push rod 12 are equipped with power supplies, which are mature technologies in this field and have been fully disclosed. Therefore, they are not repeated in the specification.

Claims

1. A modified plastic pellet extrusion device, comprising a processing barrel, characterized in that: The processing cylinder is arranged horizontally and a hydraulic push rod is provided at one end of the processing cylinder, a feeding port is provided on the side of the processing cylinder, a cover plate is hinged in the feeding port, the inner side wall of the processing cylinder is slidably connected with a pushing plate fixed to the output end of the hydraulic push rod, a plurality of equally distributed through openings are provided on the side wall of the processing cylinder at one end away from the hydraulic push rod, a plurality of discharge pipes corresponding to the through openings and connected to the inside of the processing cylinder are fixed on the outer side wall of one end of the processing cylinder, a cooling component is provided on the outside of the discharge pipe, a forming plate b is provided at the end of the discharge pipe away from the processing cylinder, a middle connecting plate is fixed on the side of the forming plate b, a forming plate a is fixed on the end of the middle connecting plate away from the forming plate b, a plurality of forming holes corresponding to the discharge pipes are provided on the sides of the forming plates a and b, the forming holes on the forming plates a and b are arranged in different shapes, and a switching component for switching the forming plates a and b is connected to the middle connecting plate.

2. The modified plastic pellet extrusion equipment according to claim 1, characterized in that: The cooling assembly includes an end cap fixed to the end of the processing barrel and covering the outside of the discharge pipe, a ventilation cavity is provided inside the end cap, a blowing hole connected to the ventilation cavity is provided on the inner wall of the end cap, an air inlet pipe connected to the ventilation cavity is fixed on the outer wall of the end cap, and an exhaust port is provided on the side of the end cap.

3. The modified plastic pellet extrusion equipment according to claim 2, characterized in that: The switching assembly includes a bracket plate fixed on the outer wall of the end sleeve, the bracket plate is rotatably connected to a shaft rod with one end fixed to the middle connecting plate, a first gear is fixed to the end of the shaft rod away from the middle connecting plate, a first motor is fixed on the outer wall of the end sleeve, and a second gear meshingly connected to the first gear is fixed on the output end of the first motor.

4. The modified plastic pellet extrusion equipment according to claim 3, characterized in that: A plurality of the blowing holes are provided, and the plurality of the blowing holes are distributed at equal intervals.

5. The modified plastic pellet extrusion equipment according to claim 3, characterized in that: A second motor is fixed on the outer wall of the end cover, and a cutter for pelletizing is fixed on the output end of the second motor.

6. The modified plastic pellet extrusion equipment according to claim 1, characterized in that: A bottom plate is arranged below the treatment cylinder, a base a and a base b are fixed on the top side of the bottom plate, and the treatment cylinder and the hydraulic push rod are fixed on the top of the base a and the top of the base b respectively.

Images