Smelting extrusion device for PP material preparation

Abstract

The utility model discloses a smelting extrusion device for PP (polypropylene) material preparation, which comprises a heating charging barrel, an extruder, a chopper and a shell, a feeding screw machine is mounted at the left end of the heating charging barrel, a processing box is mounted at the upper end of the feeding screw machine, the extruder is mounted on the processing box, PP materials are placed in the processing box and are pressed into sheets by the extruder, the chopper is mounted on the processing box, and the shell is mounted on the shell. The PP material extruded by the extruder is crushed by the chopper, the shell is mounted at the right end of the heating charging barrel, a driving gear shaft and a driven gear shaft which are in transmission connection with each other are mounted in the shell, and a cooling assembly for cooling the driving gear shaft and the driven gear shaft is mounted on the shell; the two extrusion rollers rotate to extrude a harder and larger PP material to be flat, the volume of the PP material is reduced, then the extruded PP material is cut into fragments by the two chopping rollers, the surface area of the PP material is reduced, and the crushed PP material is conveyed into the heating charging barrel by the feeding screw machine so that the PP material can be melted more quickly.

Description

TECHNICAL FIELD

[0001] The utility model relates to PP material processing technical field, concretely is a kind of PP material preparation and smelting extrusion device. BACKGROUND

[0002] PP material has wide application in packaging, building, automobile and other fields, and various shapes of products can be prepared by smelting extrusion to meet the needs of different industries.

[0003] In the related art, a low-energy double-screw mixing machine (publication number CN221953646U) is found through retrieval. The cooperation of the base, the first driving device, the double-screw extrusion device, the conveying box, the second driving device, the falling pipe, the conveying roller, the placing box, the support rod, the waste heat pipe, the support frame, the fan, the heat preservation box, the recovery pipe, the circulating pump, the conveying pipe and the waste heat box recovers the excess heat during smelting and conducts the recovered heat to the raw materials to preheat the raw materials, reducing the heat required during smelting.

[0004] However, the hardness and size of PP raw materials vary, and the common Rockwell hardness of PP raw materials is between 60-120. Higher hardness PP raw materials require higher smelting temperature or longer smelting time to ensure complete melting. The size of PP raw materials directly affects the heating area and heat transfer efficiency during smelting. The above-mentioned screw mixing machine commonly used in this type of scheme has low smelting efficiency for high-hardness and large-volume PP raw materials, which affects the yield of molten PP materials. SUMMARY

[0005] The utility model aims to provide a kind of PP material preparation and smelting extrusion device to solve the problems raised in the above background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of PP material preparation and smelting extrusion device, including heating cylinder, the heating cylinder left end is equipped with feeding screw rod machine, the feeding screw rod machine upper end is equipped with processing box;

[0007] Extruder, the extruder is installed to processing box, PP material is put into processing box and is extruded into sheet by extruder, which can reduce the thickness of PP material and extrude hard PP material, to speed up the melting of PP material;

[0008] Chopper, the chopper is installed to processing box, PP material extruded by extruder is shredded by chopper again, and the size of PP material is reduced again, and the performance requirement for melting is lower;

[0009] The shell is installed to the right end of the heating cylinder, the shell is provided with the driving gear shaft and the driven gear shaft which are connected with each other in transmission, the shell is provided with the cooling assembly for cooling the driving gear shaft and the driven gear shaft, and the rotation of the driving gear shaft and the driven gear shaft can increase the discharging pressure of the molten PP.

[0010] Further, the feeding screw machine is drivenly connected with the driving motor, the driving motor is provided with the speed reducer, the speed reducer increases the torque of the driving motor, the feeding screw machine can stably push the PP material to move, and the heating cylinder and the lower portion of the speed reducer are both provided with the supporting leg, the supporting leg of the lower portion of the speed reducer supports the driving motor, and the driving motor is installed more stably.

[0011] Further, the extruder comprises a first motor and a first gear box, the first motor is drivingly connected with two extrusion rollers, the two extrusion rollers are drivingly connected through the first gear box, the extrusion rollers crush the PP material, the chopper comprises a second motor and a second gear box, the second motor is drivingly connected with two chopping rollers, the two chopping rollers are drivingly connected through the second gear box, and the chopping rollers chop the PP material into small pieces, and the melting speed is faster.

[0012] Further, the cooling assembly comprises two rotary joints which are connected with the driving gear shaft and the driven gear shaft respectively, the driving gear shaft and the driven gear shaft are internally provided with cooling cavities, the rotary joints are connected with water inlet pipes and water outlet pipes, the water inlet pipes and the water outlet pipes are inserted into the cooling cavities, the driving gear shaft and the driven gear shaft can be cooled, and the service life is prolonged.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: after the storage hopper stores the PP material, the two extrusion rollers rotate to flatten the relatively hard and large PP material, the volume of the PP material is reduced, then the flattened PP material is chopped into pieces by the two chopping rollers, the surface area of the PP material is reduced, the PP material which is subjected to the crushing treatment is sent to the heating cylinder by the feeding screw machine, the PP material can be melted more quickly, efficient melting and extrusion processing are ensured, the rotation of the driving gear shaft and the driven gear shaft can pressurize and discharge the molten PP, and the discharging pressure is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structural schematic view of the utility model;

[0015] Figure 2 It is the structural schematic view of the inside of the processing box of the utility model;

[0016] Figure 3 It is the structural schematic view of the inside of the shell of the utility model.

[0017] In the figure: 1, heating cylinder; 2, feeding screw machine; 3, support leg; 4, driving motor; 5, shell; 6, water inlet pipe; 7, drain pipe; 8, processing box; 9, first gear box; 10, storage hopper; 11, first motor; 12, scraping plate; 13, extrusion roller; 14, chopping roller; 15, driving gear shaft; 16, cooling cavity; 17, rotary joint; 18, speed reducer; 19, second motor; 20, second gear box; 21, driven gear shaft. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Embodiment:

[0020] Please refer to Figures 1-3 The utility model provides a kind of technical solutions: a kind of PP material preparation is used with smelting extrusion device, including heating cylinder 1, the feeding screw machine 2 is installed in heating cylinder 1 left end, the processing box 8 is installed in feeding screw machine 2 upper end, PP material is pushed forward when feeding screw machine 2 is inserted into heating cylinder 1 rotation, and PP material after melting is extruded;

[0021] Extruder, the extruder is installed to processing box 8, PP material is pressed into sheet shape in processing box 8, and PP material with large volume is also extruded, and the thickness of PP material is reduced, and the melting efficiency of PP material is accelerated;

[0022] Chopper, the chopper is installed to processing box 8, and PP material is crushed by chopper after being extruded by extruder, and the size of PP material surface area is reduced, and PP material after crushing can be quickly melted;

[0023] Shell 5, the shell 5 is installed to heating cylinder 1 right end, the shell 5 is installed with driving gear shaft 15 and driven gear shaft 21 that have transmission connection, the shell 5 is installed with cooling assembly for driving gear shaft 15 and driven gear shaft 21 cooling, and the principle of shell 5 cooperation driving gear shaft 15 and driven gear shaft 21 and gear pump is same, and driving gear shaft 15 and driven gear shaft 21 can output molten PP by more stable pressure, and molten PP is more stable.

[0024] In the embodiment, as Figure 1As shown, the feeding screw machine 2 is drivingly connected with a driving motor 4, the driving motor 4 is provided with a speed reducer 18, the rotating speed of the driving motor 4 is increased through the speed reducer 18 to increase the output torque, the power of the rotating of the feeding screw machine 2 is sufficient, and the PP material can be stably pushed to move in the heating cylinder 1, the heating cylinder 1 and the lower part of the speed reducer 18 are both provided with supporting legs 3, the supporting legs 3 support the driving motor 4 through the speed reducer 18, the driving motor 4 is arranged at the lower part to lower the gravity center and be more stable.

[0025] In the embodiment, as shown in Figure 1 The processing box 8 is fixedly connected with a storage hopper 10 at the upper end, the storage hopper 10 can be put into the PP material in advance to realize the continuous supply of the PP material.

[0026] In the embodiment, as shown in Figure 1 And Figure 2 The extruding machine includes a first motor 11 and a first gear box 9, the first motor 11 is drivingly connected with two extruding rollers 13, the two extruding rollers 13 are drivingly connected through the first gear box 9, the first motor 11 controls the rotation of one extruding roller 13, and the extruding roller 13 drives the rotation of the other extruding roller 13 through the first gear box 9, and the rotation of the two extruding rollers 13 extrudes and crushes the PP material.

[0027] The cutting machine includes a second motor 19 and a second gear box 20, the second motor 19 is drivingly connected with two cutting rollers 14, the two cutting rollers 14 are drivingly connected through the second gear box 20, and the rotation of the two cutting rollers 14 is realized by the cooperation of the second motor 19 and the second gear box 20 to cut the PP material, reduce the size of the PP material, and increase the melting speed.

[0028] The inner wall of the processing box 8 is provided with two groups of scraping plates 12 corresponding to the positions of the extruding machine and the cutting machine, when the surfaces of the extruding rollers 13 and the cutting rollers 14 are provided with some PP material, the scraping plates 12 can shovel off the PP material to reduce the residue and make the conveying of the PP material more smooth.

[0029] In the embodiment, as shown in Figure 1 And Figure 2 The cooling assembly includes two rotary joints 17, the two rotary joints 17 are connected with a driving gear shaft 15 and a driven gear shaft 21 respectively, the driving gear shaft 15 and the driven gear shaft 21 are provided with cooling cavities 16 inside, the rotary joints 17 are connected with water inlet pipes 6 and water outlet pipes 7, the water inlet pipes 6 and the water outlet pipes 7 are inserted into the cooling cavities 16, the water inlet pipes 6 and the water outlet pipes 7 are connected with an external water pump system, the driving gear shaft and the driven gear shaft 21 are cooled by the water circulation to protect the driving gear shaft and the driven gear shaft 21 and use for a longer time.

[0030] Specific, use, PP material is put into the storage hopper 10, start the first motor 11 and the second motor 19, the extrusion roller 13 and the chopping roller 14 rotate, two extrusion rollers 13 extrude and crush the PP material into sheet, the chopping roller 14 is processed when rotating to the PP material that the extrusion roller 13 is transported to fragment, reduce the volume of PP material, drive motor 4 controls the rotation of the feeding screw machine 2, PP material is sent to the heating cylinder 1 by the feeding screw machine 2 and is melted, PP material becomes molten PP, using external reduction motor control driving gear shaft 15 rotates, driving gear shaft 15 drives driven gear shaft 21 to rotate, molten PP is inhaled by driving gear shaft 15 and driven gear shaft 21 and is discharged from the shell 5, the pressure of molten PP is stable.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A melting extrusion device for preparing a PP material, characterized by, Include: Heating cylinder (1), the feeding screw machine (2) is installed to left end of heating cylinder (1), and the processing box (8) is installed to upper end of feeding screw machine (2); Extruder, which is installed to processing box (8), puts PP material into processing box (8) and is pressed into sheet by extruder; Chopper, which is installed to processing box (8), is crushed by chopper again by extruder extruded PP material; Housing (5), which is installed to right end of heating cylinder (1), is installed with driving gear shaft (15) and passive gear shaft (21) that are connected with each other, and cooling assembly is installed for driving gear shaft (15) and passive gear shaft (21) cooling.

2. A melt extrusion device for PP material preparation according to claim 1, characterized in that: The feeding screw machine (2) is connected with driving motor (4), and the driving motor (4) is provided with speed reducer (18).

3. A melt extrusion device for PP material preparation according to claim 2, characterized in that: The heating cylinder (1) and the speed reducer (18) are both installed with support leg (3) in lower part.

4. A melt extrusion device for PP material preparation according to claim 1, characterized in that: The processing box (8) is fixedly connected with storage hopper (10) in upper end.

5. A melting and extruding device for preparing a PP material according to claim 1, characterized in that: The extruder includes first motor (11) and first gear box (9), the first motor (11) is connected with two extrusion rollers (13), and the two extrusion rollers (13) are connected through first gear box (9).

6. A melting and extruding device for PP material preparation according to claim 1, characterized in that: The chopper includes second motor (19) and second gear box (20), the second motor (19) is connected with two chopper rollers (14), and the two chopper rollers (14) are connected through second gear box (20).

7. A melt extrusion device for PP material preparation according to claim 1, characterized in that: The cooling assembly includes two rotary joints (17), two rotary joints (17) are connected with driving gear shaft (15) and passive gear shaft (21) respectively, the driving gear shaft (15) and passive gear shaft (21) are provided with cooling cavity (16) inside, the rotary joint (17) is connected with water inlet pipe (6) and drain pipe (7), and the water inlet pipe (6) and drain pipe (7) are inserted into the inside of cooling cavity (16).

8. A melt extrusion device for PP material preparation according to claim 1, characterized in that: The inner wall of processing box (8) is provided with two groups of scraping plates (12), and the two groups of scraping plates (12) correspond to the positions of extruder and chopper.

Images