Conical double-screw extrusion structure

Abstract

The utility model relates to the technical field of double-screw extrusion structures, in particular to a conical double-screw extrusion structure which comprises an extrusion pipe, an extrusion mechanism is installed on the pipe wall of the extrusion pipe, and the extrusion mechanism is formed by combining a sealing disc, a screw body, a sleeve, a shearing thread groove A, a shearing thread groove B and a gasket. A sealing disc is installed at one end of the extrusion pipe through a bolt, a set of symmetrical sleeves are welded to the disc wall of the sealing disc in a communicating mode, a screw body is rotationally connected to the inner walls of the sleeves, shearing thread grooves A are formed in the rod wall of the screw body, and the shearing thread grooves A are meshed with one another; shearing thread grooves B are formed in the rod wall of the screw main body, the shearing thread grooves B are meshed with each other, the gasket is located between the extrusion pipe and the sealing disc, the bolt penetrates through the gasket, and the sealing disc and one end of the extrusion pipe are detached and separated, so that the screw main body can be conveniently taken out by personnel, and the interior of the extrusion pipe can be conveniently cleaned by the personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of twin-screw extrusion structures, in particular to a conical twin-screw extrusion structure. Background Art

[0002] After the polymer resin is squeezed and melted through a screw extruder, it is accurately metered and delivered to the spinneret assembly through a metering pump, and drawn into ultrafine fibers under the action of high-speed and high-pressure hot air flow, forming a melt-blown nonwoven fabric on a collecting device. Meltblown cloth is the core material of masks. Meltblown cloth is mainly made of polypropylene as the main raw material, and the fiber diameter can reach 1 to 5 microns. The ultrafine fibers with many gaps, fluffy structure, good wrinkle resistance, and unique capillary structure increase the number and surface area of ​​fibers per unit area, so that the meltblown cloth has good filtering, shielding, insulation and oil absorption.

[0003] However, in the prior art, when the screw of the conical twin-screw extruder is installed in the extrusion tube, when the extrusion tube needs to be cleaned, the conical screw is generally fixed in the extrusion tube, so it is inconvenient to disassemble the conical screw to clean the extrusion tube, and when adding materials into the extrusion tube, the feed port of the extrusion tube is easily blocked. To this end, we propose a conical twin-screw extruder structure. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a conical twin-screw extrusion structure.

[0005] The utility model solves the technical problem by adopting a technical solution that is a conical twin-screw extrusion structure, comprising an extrusion tube, an extrusion mechanism is installed at the tube wall of the extrusion tube, the extrusion mechanism is composed of a sealing disk, a screw body, a sleeve, a shearing thread groove A, a shearing thread groove B and a gasket combination, one end of the extrusion tube is installed with a sealing disk by a bolt, a group of symmetrical sleeves are connected and welded at the disk wall of the sealing disk, a group of the sleeves are rotatably connected with a screw body at the inner wall of the tube, a shearing thread groove A is opened at the rod wall of the screw body, and the shearing thread grooves A are meshed with each other, a shearing thread groove B is opened at the rod wall of the screw body, and the shearing thread grooves B are meshed with each other, the gasket is located between the extrusion tube and the sealing disk, and the bolt passes through the gasket.

[0006] By adopting the above technical scheme, when extruding materials from the extrusion tube, since an extrusion mechanism is installed on the tube wall of the extrusion tube, the extrusion mechanism is composed of a sealing disk, a screw body, a sleeve, a shear thread groove A, a shear thread groove B and a gasket combination, when disassembling the screw body, since a sealing disk is installed on one end of the extrusion tube through bolts, the gasket is located between one end of the extrusion tube and the sealing disk, and since a group of symmetrical sleeves are connected and welded to the disk wall of the sealing disk, the inner wall of the sleeve is rotatably connected with the screw body, so that after loosening the bolts, the sealing disk is disassembled and separated from one end of the extrusion tube, so that it is convenient for personnel to take out the screw body and clean the inside of the extrusion tube.

[0007] Specifically, it also includes a feeding mechanism, and the feeding mechanism is installed on the tube wall of the extrusion tube.

[0008] By adopting the above technical solution, raw materials can be conveniently added into the extrusion tube through the feeding mechanism.

[0009] Specifically, the feeding mechanism is composed of a feed hopper, an L-shaped frame, a motor, a rotating shaft and a blade combination. The feed hopper is welded to the tube wall of the extrusion tube, an L-shaped frame is installed on the bucket wall of the feed hopper by bolts, a motor is connected to the top of the L-shaped frame by bolts, a rotating shaft is installed on the output end of the motor, blades are fixedly installed on the shaft wall of the rotating shaft, and the blades are located in the feed hopper.

[0010] By adopting the above technical scheme, when adding raw materials into the extrusion tube, since a feeding mechanism is installed at the tube wall of the extrusion tube, and the feeding mechanism is composed of a feeding hopper, an L-shaped frame, a motor, a rotating shaft and blades, after the personnel add the raw materials into the feeding hopper, since a motor is installed at the frame wall of the L-shaped frame by bolts, the motor is controlled by an external controller so that the motor drives the rotating shaft at its output end to rotate, and since blades are fixedly installed at the shaft wall of the rotating shaft, the blades drive the raw materials in the feeding hopper to rotate, so that the raw materials enter the extrusion tube through the feeding hopper, thereby avoiding blockage of the feeding port of the extrusion tube during the process.

[0011] Specifically, a flange is installed at the other end of the extrusion tube.

[0012] By adopting the above technical solution, it is convenient to fix the flange.

[0013] Specifically, through holes are provided on the wall of the flange and the wall of the sealing disk.

[0014] By adopting the above technical solution, it is convenient to connect with external bolts through the through hole.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model discloses a conical twin-screw extrusion structure. When extruding material from an extrusion tube, an extrusion mechanism is installed on the tube wall of the extrusion tube. The extrusion mechanism is composed of a sealing disk, a screw body, a sleeve, a shearing thread groove A, a shearing thread groove B and a gasket. When disassembling the screw body, a sealing disk is installed on one end of the extrusion tube by bolts. The gasket is located between the one end of the extrusion tube and the sealing disk. A group of symmetrical sleeves are welded to the disk wall of the sealing disk. The inner wall of the sleeve is rotatably connected to the screw body. After loosening the bolts, the sealing disk is disassembled and separated from one end of the extrusion tube, so that it is convenient for personnel to take out the screw body and clean the inside of the extrusion tube.

[0017] (2) The utility model discloses a conical twin-screw extruder structure. When adding raw materials into the extrusion tube, a feeding mechanism is installed on the tube wall of the extrusion tube. The feeding mechanism is composed of a feeding hopper, an L-shaped frame, a motor, a rotating shaft and blades. After adding the raw materials into the feeding hopper, a motor is installed on the wall of the L-shaped frame by bolts. The motor is controlled by an external controller so that the motor drives the rotating shaft at its output end to rotate. Blades are fixedly installed on the shaft wall of the rotating shaft. The blades drive the raw materials in the feeding hopper to rotate, so that the raw materials enter the extrusion tube through the feeding hopper, thereby avoiding blockage of the feeding port of the extrusion tube during the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is the main figure of the utility model;

[0020] Figure 2 This is a schematic diagram of the extrusion mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the feeding mechanism structure of the utility model;

[0022] In the figure: 1. extrusion tube; 2. feeding mechanism; 201. feeding hopper; 202. L-shaped frame; 203. motor; 204. rotating shaft; 205. blade; 3. flange; 4. through hole; 5. extrusion mechanism; 501. sealing disk; 502. screw body; 503. sleeve; 504. shear thread groove A; 505. shear thread groove B; 506. gasket. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] As an embodiment of the present utility model, Figure 1 , Figure 2 and Figure 3 As shown, a conical twin-screw extrusion structure described in the utility model includes an extrusion tube 1, an extrusion mechanism 5 is installed at the tube wall of the extrusion tube 1, and the extrusion mechanism 5 is composed of a sealing disk 501, a screw body 502, a sleeve 503, a shear thread groove A504, a shear thread groove B505 and a gasket 506. One end of the extrusion tube 1 is installed with a sealing disk 501 by bolts, and a group of symmetrical sleeves 503 are welded and connected to the disk wall of the sealing disk 501, and a group of the sleeves 503 are rotatably connected to the inner wall of the tube with a screw body 502, a shear thread groove A504 is opened at the rod wall of the screw body 502, and the shear thread grooves A504 are meshed with each other, a shear thread groove B505 is opened at the rod wall of the screw body 502, and the shear thread grooves B505 are meshed with each other, and the gasket 506 is located between the extrusion tube 1 and the sealing disk 501, and the bolt passes through the gasket 506.

[0025] When in use, since the extrusion mechanism 5 is installed on the tube wall of the extrusion tube 1, the extrusion mechanism 5 is composed of a sealing disk 501, a screw body 502, a sleeve 503, a shear thread groove A504, a shear thread groove B505 and a gasket 506. When the screw body 502 is disassembled, since the sealing disk 501 is installed on one end of the extrusion tube 1 by bolts, the gasket 506 is located between one end of the extrusion tube 1 and the sealing disk 501. Since a group of symmetrical sleeves 503 are welded to the disk wall of the sealing disk 501, the inner wall of the sleeve 503 is rotatably connected with the screw body 502. After loosening the bolts, the sealing disk 501 is disassembled and separated from one end of the extrusion tube 1, so that it is convenient for personnel to take out the screw body 502 and clean the inside of the extrusion tube 1.

[0026] like Figure 1 As shown, it also includes a feeding mechanism 2, and the feeding mechanism 2 is installed on the tube wall of the extrusion tube 1.

[0027] When in use, raw materials are conveniently added into the extrusion tube 1 through the feeding mechanism 2 .

[0028] like Figure 1 and Figure 3 As shown, the feeding mechanism 2 is composed of a feeding hopper 201, an L-shaped frame 202, a motor 203, a rotating shaft 204 and a blade 205. The feeding hopper 201 is welded to the tube wall of the extrusion tube 1, the L-shaped frame 202 is installed on the bucket wall of the feeding hopper 201 by bolts, the motor 203 is connected to the top of the L-shaped frame 202 by bolts, the rotating shaft 204 is installed on the output end of the motor 203, the blade 205 is fixedly installed on the shaft wall of the rotating shaft 204, and the blade 205 is located in the feeding hopper 201.

[0029] When in use, since a feeding mechanism 2 is installed on the tube wall of the extrusion tube 1, and the feeding mechanism 2 is composed of a feeding hopper 201, an L-shaped frame 202, a motor 203, a rotating shaft 204 and blades 205, after the personnel add the raw materials into the feeding hopper 201, since the motor 203 is installed on the frame wall of the L-shaped frame 202 by bolts, the motor 203 is controlled by an external controller, so that the motor 203 drives the rotating shaft 204 at its output end to rotate, and since the blades 205 are fixedly installed on the shaft wall of the rotating shaft 204, the blades 205 drive the raw materials in the feeding hopper 201 to rotate, so that the raw materials enter the extrusion tube 1 through the feeding hopper 201, thereby avoiding the blockage of the feeding port of the extrusion tube 1 during the process.

[0030] like Figure 1 As shown, a flange 3 is installed at the other end of the extrusion tube 1.

[0031] When in use, it is convenient to fix the flange 3.

[0032] like Figure 1 As shown, through holes 4 are provided at the wall of the flange 3 and the wall of the sealing disk 501 .

[0033] When in use, the through hole 4 is convenient for connection with external bolts.

[0034] When the utility model is in use, when extruding material from the extrusion tube 1, since the extrusion mechanism 5 is installed at the tube wall of the extrusion tube 1, the extrusion mechanism 5 is composed of a sealing disk 501, a screw body 502, a sleeve 503, a shearing thread groove A504, a shearing thread groove B505 and a gasket 506, when the screw body 502 is disassembled, since one end of the extrusion tube 1 is installed with a sealing disk 501 by bolts, the gasket 506 is located between one end of the extrusion tube 1 and the sealing disk 501, and since a group of symmetrical sleeves 503 are welded and connected to the disk wall of the sealing disk 501, the inner wall of the sleeve 503 is rotatably connected with the screw body 502, so after loosening the bolts, the sealing disk 501 is disassembled and separated from one end of the extrusion tube 1, so that it is convenient for personnel to take out the screw body 502 , it is convenient for personnel to clean the extrusion tube 1. When adding raw materials into the extrusion tube 1, since a feeding mechanism 2 is installed at the tube wall of the extrusion tube 1, the feeding mechanism 2 is composed of a feeding hopper 201, an L-shaped frame 202, a motor 203, a rotating shaft 204 and a blade 205. After the personnel add the raw materials into the feeding hopper 201, since a motor 203 is installed at the frame wall of the L-shaped frame 202 by bolts, the motor 203 is controlled by an external controller, so that the motor 203 drives the rotating shaft 204 at its output end to rotate, and since a blade 205 is fixedly installed at the shaft wall of the rotating shaft 204, the blade 205 drives the raw materials in the feeding hopper 201 to rotate, so that the raw materials enter the extrusion tube 1 through the feeding hopper 201, avoiding blockage of the feeding port of the extrusion tube 1 during the process.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A conical twin-screw extruder structure, characterized in that: The invention comprises an extrusion tube (1), wherein an extrusion mechanism (5) is installed on the tube wall of the extrusion tube (1), wherein the extrusion mechanism (5) is composed of a sealing disk (501), a screw body (502), a sleeve (503), a shearing thread groove A (504), a shearing thread groove B (505) and a gasket (506), wherein a sealing disk (501) is installed on one end of the extrusion tube (1) by means of bolts, and a group of symmetrical sleeves (503) are welded to the disk wall of the sealing disk (501), and a group of symmetrical sleeves (503) are welded to the disk wall of the sealing disk (501). The inner wall of the sleeve (503) is rotatably connected to a screw body (502), a shearing thread groove A (504) is provided on the rod wall of the screw body (502), and the shearing thread grooves A (504) are meshed with each other, a shearing thread groove B (505) is provided on the rod wall of the screw body (502), and the shearing thread grooves B (505) are meshed with each other, the gasket (506) is located between the extrusion tube (1) and the sealing disk (501), and the bolt passes through the gasket (506).

2. A conical twin-screw extruder structure according to claim 1, characterized in that: It also comprises a feeding mechanism (2), and the feeding mechanism (2) is installed on the tube wall of the extrusion tube (1).

3. A conical twin-screw extruder structure according to claim 2, characterized in that: The feeding mechanism (2) is composed of a feeding hopper (201), an L-shaped frame (202), a motor (203), a rotating shaft (204) and a blade (205); the feeding hopper (201) is welded to the tube wall of the extrusion tube (1); the L-shaped frame (202) is bolted to the bucket wall of the feeding hopper (201); the motor (203) is bolted to the top of the L-shaped frame (202); the rotating shaft (204) is installed at the output end of the motor (203); the blade (205) is fixedly installed on the shaft wall of the rotating shaft (204); and the blade (205) is located in the feeding hopper (201).

4. A conical twin-screw extruder structure according to claim 1, characterized in that: The other end of the extrusion tube (1) is provided with a flange (3).

5. A conical twin-screw extruder structure according to claim 4, characterized in that: Through holes (4) are provided on the wall of the flange (3) and the wall of the sealing disk (501).

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