Twin-screw extrusion device for plastic product processing

Abstract

The utility model discloses a twin-screw extrusion device for plastic product processing, which relates to the field of plastic product processing and comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a support, the upper end of the support is fixedly connected with an extrusion device body, the upper end of the extrusion device body is fixedly connected with a feed pipe, and the feed pipe is fixedly connected with a screw rod. And a feeding barrel is arranged at the upper end of the feeding pipe. With the adoption of the structure, plastic particles entering the barrel body cannot directly enter the extrusion device body through the material guide pipe under the rotation of the conveying auger, and the plastic particles entering the barrel body move upwards through the rotation of the conveying auger; and under the action of the filtering holes, appropriate plastic particles can be leaked out and enter the interior of the material guiding pipe, and large particles can move to the upper end of the barrel body under the action of the filtering auger and then are discharged through the material discharging pipe, so that the screening effect can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of plastic product processing, especially relates to a double screw extrusion device for plastic product processing. BACKGROUND

[0002] The double screw extruder is developed on the basis of the single screw extruder, and has been widely applied to the forming processing of extruded products due to good feeding performance, mixing plasticizing performance, exhaust performance and extrusion stability, and the double screw extruder for profile extrusion is usually closely meshed and rotates in opposite directions, although a few use the same direction rotating type double screw extrusion, and generally operates at a relatively low screw speed, about 10 r / min, the high-speed meshing same direction rotating type double screw extruder is used for compounding, exhaust or as a continuous chemical reactor, and the maximum screw speed range of such extruder is 300-600 r / min.

[0003] A double screw extruder for plastic product production is disclosed in Chinese patent with publication number "CN211307300U", which comprises a base, the top of the base is fixedly connected with an extrusion cylinder, one end of the top of the base is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a first extrusion screw, one end of the first extrusion screw penetrates the outer wall of the extrusion cylinder and extends inward, a first gear is fixedly sleeved with one end of the first extrusion screw close to the first motor, the extrusion cylinder is provided with a second extrusion screw meshing with the first extrusion screw, one end of the second extrusion screw penetrates the inner wall of the extrusion cylinder and extends outward, the utility model discloses a stirring mechanism and an extrusion mechanism are arranged, so that the plastic particles after uniform stirring enter the double screw extruder body for heating and extrusion, and the problems of uneven distribution of plastic and poor product quality are solved.

[0004] Through the above structure, the plastic particles are poured into the feeding cylinder, and then the second motor is turned on to drive the stirring rod to rotate, and the stirring blade drives the plastic particles in the feeding cylinder to be uniformly stirred in the process of rotating, but the existing double screw extruder does not have the function of screening the materials when feeding, which easily causes the blockage of the double screw extruder and reduces the practicability of the device. UTILITY MODEL CONTENTS

[0005] In view of the problems mentioned in the background art, the utility model aims to provide a double screw extrusion device for plastic product processing to solve the problems mentioned in the background art.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] The utility model provides a kind of double screw extrusion device for plastic product processing, including bottom plate, the upper end of the bottom plate is fixedly connected with support, the upper end of the support is fixedly connected with extrusion device body, the upper end of the extrusion device body is fixedly connected with feed pipe, the upper end of the feed pipe is provided with feed barrel, the side of the feed barrel is fixedly connected with feeding hopper, the other end of the feed pipe is fixedly connected with crushing assembly, the barrel including the barrel body of being set on the upper end of feed pipe of the feed barrel, the upper end of the barrel body is provided with barrel cover, the inside of the barrel cover is rotatably connected with shaft rod, the outside of the shaft rod is fixedly connected with conveying auger, the outer surface of the conveying auger is all provided with filter hole, the other side of the barrel body is fixedly connected with discharge pipe, the upper end of the barrel cover is fixedly connected with driving motor, the output shaft of the driving motor is fixedly connected with shaft rod and penetrates barrel cover.

[0008] As a preferred technical solution, the crushing assembly includes a box body disposed at the lower end of the discharge pipe, one side of the box body is fixedly connected with a box cover, the outer side of the box cover is rotatably connected with a transmission gear, the transmission gears are connected with each other, the outer side of the box cover is fixedly connected with a transmission motor, the output shaft of the transmission motor is fixedly connected with the transmission gear, the inner side of the box cover is rotatably connected with a rotating shaft, the outer side of the rotating shaft is fixedly connected with a cutting blade, the transmission gear and the rotating shaft are fixedly connected with each other, the lower end of the box body is fixedly connected with a connecting pipe, the other end of the connecting pipe is fixedly connected with the barrel body.

[0009] As a preferred technical solution, the lower end of the barrel cover is fixedly connected with a mounting ring, mounting through holes are formed in the surface of the mounting ring, mounting screws are inserted into the mounting through holes, mounting screw holes are formed in the outer surface of the barrel body, and the mounting screws are threadedly connected with the mounting screw holes through the mounting through holes.

[0010] As a preferred technical solution, mounting plates are fixedly connected to the outer surface of the barrel body, observation windows are formed in the surface of the mounting plates, and the outer side of the observation window is sealingly connected with the inner side of the mounting plate.

[0011] As a preferred technical solution, the upper end of the feed pipe is inserted into the lower end of the barrel body, a guide barrel is fixedly connected to the upper end of the feed pipe, a guide pipe is fixedly connected to the lower end of the barrel body, and the guide pipe is inserted into the guide barrel.

[0012] As a preferred technical solution, connecting screw holes are formed in the outer surface of the guide barrel, connecting screws are threadedly connected in the connecting screw holes, and the other end of the connecting screw is movably connected with the guide pipe through the connecting screw hole.

[0013] As a preferred technical scheme, the lower end of the conveying auger is fixedly connected with a connecting plate, the lower end of the connecting plate is fixedly connected with a material guiding shaft, and the outer sides of the material guiding shaft are fixedly connected with material guiding augers.

[0014] To sum up, the utility model mainly has the following beneficial effects:

[0015] Firstly, the feeding barrel is arranged, plastic particles are first added into the inside of the feeding hopper, the plastic particles enter the inside of the barrel body through the feeding hopper, the driving motor is started to drive the conveying auger to rotate after the particles enter the inside of the barrel body, the plastic particles in the barrel body can not directly enter the extrusion device body through the material guiding pipe under the rotation of the conveying auger, the plastic particles in the barrel body move upwards under the rotation of the conveying auger, suitable plastic particles can leak into the inside of the material guiding pipe under the action of the filtering hole, and larger particles can move to the upper end of the barrel body under the action of the filtering auger and then be discharged through the discharge pipe, so that the screening effect can be achieved.

[0016] Secondly, the crushing assembly is arranged, the plastic particles discharged through the discharge pipe enter the inside of the box, the transmission motor is started to drive the transmission gear to rotate before the plastic particles enter, the transmission gear can drive the rotating shaft to rotate under the rotation, so that the cutting blade is driven to rotate under the rotation of the rotating shaft, the plastic particles in the box contact the cutting blade under the rotation of the cutting blade, and then the larger particles can be scattered when in use, and then enter the inside of the barrel body through the connecting pipe, so that the larger particles can be crushed when in use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a structural schematic view of the extrusion device body of the utility model;

[0019] Figure 3 It is a structural schematic view of the crushing assembly of the utility model;

[0020] Figure 4 It is a structural schematic view of the feeding barrel of the utility model.

[0021] Label: 1, bottom plate; 2, support; 3, extrusion device body; 4, feeding pipe; 5, feeding barrel; 51, barrel body; 52, barrel cover; 53, driving motor; 54, shaft rod; 55, conveying auger; 56, filter hole; 57, discharge pipe; 6, crushing assembly; 61, box body; 62, box cover; 63, transmission gear; 64, transmission motor; 65, rotating shaft; 66, cutting piece; 67, connecting pipe; 7, feeding hopper; 8, mounting plate; 9, observation window; 10, guide pipe; 11, guide barrel; 12, connecting screw hole; 13, connecting screw rod; 14, mounting ring; 15, mounting through hole; 16, mounting screw rod; 17, mounting screw hole; 18, connecting plate; 19, guide shaft; 20, guide auger. DETAILED DESCRIPTION

[0022] EMBODIMENT

[0023] Reference Figures 1 to 4 The double-screw extrusion device for processing plastic products of the embodiment comprises a bottom plate 1, a support 2 fixedly connected to the upper end of the bottom plate 1, an extrusion device body 3 fixedly connected to the upper end of the support 2, a feeding pipe 4 fixedly connected to the upper end of the extrusion device body 3, a feeding barrel 5 provided at the upper end of the feeding pipe 4, a feeding hopper 7 fixedly connected to one side of the feeding barrel 5, a crushing assembly 6 fixedly connected to the other end of the feeding pipe 4, a barrel body 51 provided at the upper end of the feeding pipe 4, a barrel cover 52 provided at the upper end of the barrel body 51, a shaft rod 54 rotatably connected to the inner side of the barrel cover 52, a conveying auger 55 fixedly connected to the outer side of the shaft rod 54, a filter hole 56 formed in the outer surface of the conveying auger 55, a discharge pipe 57 fixedly connected to the other side of the barrel body 51, a driving motor 53 fixedly connected to the upper end of the barrel cover 52, and an output shaft of the driving motor 53 fixedly connected with the shaft rod 54.

[0024] Reference Figure 1 and Figure 3The crushing assembly 6 comprises a box body 61 arranged at the lower end of the discharge pipe 57, one side of the box body 61 is fixedly connected with a box cover 62, the outer side of the box cover 62 is rotatably connected with a transmission gear 63, the transmission gears 63 are rotatably connected with each other, the outer side of the box cover 62 is fixedly connected with a transmission motor 64, the output shaft of the transmission motor 64 is fixedly connected with the transmission gear 63, the inner side of the box cover 62 is rotatably connected with a rotating shaft 65, the outer side of the rotating shaft 65 is fixedly connected with a cutting blade 66, the transmission gear 63 and the rotating shaft 65 are rotatably connected with each other, the lower end of the box body 61 is fixedly connected with a connecting pipe 67, and the other end of the connecting pipe 67 is fixedly connected with the barrel body 51; the plastic particles discharged through the discharge pipe 57 can enter the inside of the box body 61, and the transmission motor 64 is started to drive the transmission gear 63 to rotate before the plastic particles enter, the rotating shaft 65 can be driven to rotate under the rotation of the transmission gear 63, so that the cutting blade 66 can be driven to rotate under the rotation of the rotating shaft 65, and the plastic particles can be contacted with the cutting blade 66 under the rotation of the cutting blade 66 after entering the inside of the box body 61, thereby achieving the effect of dispersing the larger particles during use.

[0025] With reference to Figure 3 And Figure 4 The lower end of the barrel cover 52 is fixedly connected with a mounting ring 14, mounting through holes 15 are formed in the surface of the mounting ring 14, mounting screws 16 are inserted into the mounting through holes 15, and mounting screw holes 17 are formed in the outer surface of the barrel body 51; the barrel cover 52 is placed on the upper end of the barrel body 51, and then the mounting screws 16 are screwed into the mounting through holes 15 and the mounting screw holes 17, so that the barrel cover 52 can be fixed, and the barrel cover 52 can be conveniently disassembled through the threaded connection.

[0026] With reference to Figure 1 The outer surface of the barrel body 51 is fixedly connected with mounting plates 8, and observation windows 9 are arranged on the surface of the mounting plates 8; the observation windows 9 can be used to observe the filtering condition of the plastic shell in the barrel body 51 in real time.

[0027] With reference to Figure 2 And Figure 3 The upper end of the feeding pipe 4 is inserted into the lower end of the barrel body 51, the upper end of the feeding pipe 4 is fixedly connected with a guide barrel 11, the lower end of the barrel body 51 is fixedly connected with a guide pipe 10, the guide pipe 10 is inserted into the inside of the guide barrel 11, connecting screw holes 12 are formed in the outer surface of the guide barrel 11, connecting screws 13 are screwed into the connecting screw holes 12, and the other end of the connecting screws 13 is movably connected with the guide pipe 10 through the connecting screw holes 12; the connecting screws 13 can be used to install the feeding barrel 5 and the feeding pipe 4 during use.

[0028] Reference Figure 4 The lower end of the conveying auger 55 is fixedly connected with a connecting plate 18, the lower end of the connecting plate 18 is fixedly connected with a material guiding shaft 19, the outer side of the material guiding shaft 19 is fixedly connected with a material guiding auger 20, and the material guiding auger 20 is located inside the material guiding pipe 10; the material guiding shaft 19 is driven to rotate under the action of the conveying auger 55, and the material guiding auger 20 is driven to rotate under the rotation of the material guiding shaft 19, so that the filtered particles can be uniformly fed, and the material guiding pipe 10 can be prevented from being blocked.

[0029] The use principle and advantages are as follows: firstly, the connecting screw 13 is arranged, so that the feeding barrel 5 and the feeding pipe 4 can be installed during use; then the barrel cover 52 is placed on the upper end of the barrel body 51, and then the mounting screw 16 is screwed through the mounting through hole 15 and the mounting screw hole 17 to fix the barrel cover 52; after installation, the device can be used normally. Firstly, the plastic particles are added to the inside of the feeding hopper 7, so that the plastic particles enter the inside of the barrel body 51 through the feeding hopper 7; after the particles enter the inside of the barrel body 51, the driving motor 53 is started to drive the conveying auger 55 to rotate; under the rotation of the conveying auger 55, the plastic particles in the barrel body 51 cannot directly enter the extrusion device body 3 through the material guiding pipe 10; the rotation of the conveying auger 55 makes the plastic particles in the barrel body 51 move upwards, and under the action of the filtering hole 56, the appropriate plastic particles can be leaked into the inside of the material guiding pipe 10, and the larger particles will move to the upper end of the barrel body 51 under the action of the filtering auger and then be discharged through the discharge pipe 57, so that the screening effect can be achieved. The plastic particles discharged through the discharge pipe 57 will enter the inside of the box body 61, and before the plastic particles enter, the transmission motor 64 is started to drive the transmission gear 63 to rotate; under the rotation of the transmission gear 63, the rotating shaft 65 is driven to rotate, so that under the rotation of the rotating shaft 65, the cutting blade 66 is driven to rotate; under the rotation of the cutting blade 66, the plastic particles entering the inside of the box body 61 will contact the cutting blade 66, so that during use, the larger particles can be broken up, and then enter the inside of the barrel body 51 through the connecting pipe 67, so that the device can achieve the effects of screening and crushing plastic particles.

Claims

1. A twin-screw extruding device for processing plastic products, characterized by: The utility model provides an extrusion device, including bottom plate (1), the upper end of bottom plate (1) is fixedly connected with support (2), the upper end of support (2) is fixedly connected with extrusion device body (3), the upper end of extrusion device body (3) is fixedly connected with feed pipe (4), the upper end of feed pipe (4) is provided with feed barrel (5), one side of feed barrel (5) is fixedly connected with feeding hopper (7), the other end of feed pipe (4) is fixedly connected with crushing assembly (6), the barrel body (51) including being set up in the upper end of feed pipe (4) of feed barrel (5), the upper end of barrel body (51) is provided with barrel cover (52), the inside of barrel cover (52) is rotatably connected with shaft rod (54), the outside of shaft rod (54) is fixedly connected with conveying auger (55) all, the outer surface of conveying auger (55) all is provided with filter hole (56), the other side of barrel body (51) is fixedly connected with discharge pipe (57), the upper end of barrel cover (52) is fixedly connected with drive motor (53), the output shaft of drive motor (53) penetrates barrel cover (52) and is fixedly connected with shaft rod (54).

2. The twin-screw extrusion device for processing plastic products according to claim 1, characterized in that: The crushing assembly (6) includes a box (61) disposed at the lower end of the discharge pipe (57), one side of the box (61) is fixedly connected with a box cover (62), the outer side of the box cover (62) is rotatably connected with a transmission gear (63), the transmission gears (63) are meshingly connected with each other, the outer side of the box cover (62) is fixedly connected with a transmission motor (64), the output shaft of the transmission motor (64) is fixedly connected with the transmission gears (63), the inner side of the box cover (62) is rotatably connected with a rotating shaft (65), the outer side of the rotating shaft (65) is fixedly connected with a cutting blade (66), the transmission gears (63) and the rotating shaft (65) are fixedly connected with each other, the lower end of the box (61) is fixedly connected with a connecting pipe (67), the other end of the connecting pipe (67) is fixedly connected with the barrel body (51).

3. The twin-screw extrusion device for processing plastic products according to claim 1, characterized in that: The lower end of the barrel cover (52) is fixedly connected with a mounting ring (14), mounting through holes (15) are formed in the surface of the mounting ring (14), mounting screws (16) are inserted into the mounting through holes (15), mounting screw holes (17) are formed in the outer surface of the barrel body (51), and the mounting screws (16) are threadedly connected with the mounting screw holes (17) through the mounting through holes (15).

4. The twin-screw extrusion device for processing plastic products according to claim 1, characterized in that: The outer surface of the barrel body (51) is fixedly connected with a mounting plate (8), an observation window (9) is arranged on the surface of the mounting plate (8), and the outer side of the observation window (9) is sealingly connected with the inner side of the mounting plate (8).

5. The twin-screw extrusion device for processing plastic products according to claim 1, characterized in that: The upper end of the feed pipe (4) is inserted into the lower end of the barrel body (51), the upper end of the feed pipe (4) is fixedly connected with a guide barrel (11), the lower end of the barrel body (51) is fixedly connected with a guide pipe (10), and the guide pipe (10) is inserted into the guide barrel (11).

6. The twin-screw extrusion device for processing plastic products according to claim 5, characterized in that: The outer surface of the material guiding barrel (11) is provided with a connecting screw hole (12), the inner part of the connecting screw hole (12) is threadedly connected with a connecting screw rod (13), and the other end of the connecting screw rod (13) is movably connected with the material guiding pipe (10) through the connecting screw hole (12).

7. The twin-screw extrusion device for processing plastic products according to claim 6, characterized in that: The lower end of the conveying auger (55) is fixedly connected with a connecting plate (18), the lower end of the connecting plate (18) is fixedly connected with a material guiding shaft (19), the outer side of the material guiding shaft (19) is fixedly connected with a material guiding auger (20), and the material guiding auger (20) is located in the inner part of the material guiding pipe (10).

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