Bamboo powder biodegradable material double-screw extruder with extrusion die head easy to replace

Abstract

The utility model discloses a bamboo powder biodegradable material twin-screw extruder with an easily-replaced extrusion die head, which comprises a bottom plate, a horizontally-arranged charging barrel is mounted on the outer wall of the top of the bottom plate, a forming component is mounted at the top of the bottom plate, and the forming component is positioned at a discharge port of the charging barrel. The forming assembly comprises two vertical plates fixedly connected to one side of the outer wall of the top of the bottom plate, two limiting rods are fixedly connected between the two vertical plates, the two limiting rods are slidably sleeved with the same mounting base, a T-shaped limiting groove is formed in the outer wall of the top of the mounting base, and a supporting frame is slidably inserted into the T-shaped limiting groove; two vertical limiting sliding grooves are formed in the outer wall of the top of the supporting frame, the forming assembly is arranged, the die head body can be rapidly replaced when needed, the replacement efficiency of the die head body is greatly improved, no other tools are needed in the whole process, and operation is easier and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a bamboo powder biodegradable material twin-screw extruder with an easily replaceable extrusion die head. Background Art

[0002] Twin-screw extruders are developed on the basis of single-screw extruders. Due to their good feeding performance, mixing and plasticizing performance, exhaust performance and extrusion stability, they have been widely used in the molding of extruded products. With the enhancement of environmental awareness, the demand for biodegradable materials is growing. Twin-screw extruders play an important role in the preparation of biodegradable materials.

[0003] After searching, a utility model with Chinese patent announcement number CN218196843U discloses a masterbatch twin-screw extruder that is convenient for replacing the extruder die head, including an extruder main body, an extrusion module is provided at the output end of the extruder main body, the extrusion module is composed of an extrusion nozzle and a die plate, the extrusion nozzle is fixedly connected to the output end of the extruder main body, the die plate is arranged inside the extrusion nozzle, a groove is provided on the inner wall of the extrusion nozzle, the die plate is clamped with the groove, and a first groove is provided on the top of the extrusion nozzle.

[0004] The above device realizes easy replacement of the die head by providing a card slot and fastening accessories. Therefore, when replacing it, the locking nuts used for fastening need to be removed one by one, and specific tools need to be used. The operation is relatively cumbersome and it is not convenient to improve the replacement efficiency. Utility Model Content

[0005] The utility model aims to provide a bamboo powder biodegradable material twin-screw extruder with an easily replaceable extrusion die head, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a twin-screw extruder for bamboo powder biodegradable materials with an easily replaceable extrusion die head, comprising a base plate, a horizontally arranged barrel being installed on the top outer wall of the base plate, a forming assembly being installed on the top of the base plate, the forming assembly being located at the barrel discharge port, the forming assembly comprising two vertical plates fixedly connected to one side of the top outer wall of the base plate, two limit rods being fixedly connected between the two vertical plates, the two limit rods being slidably sleeved with the same mounting seat, a T-shaped limit groove being provided on the top outer wall of the mounting seat, and a support frame being slidably inserted in the T-shaped limit groove, the top outer wall of the support frame being provided with two vertically arranged limit slide grooves, and a die body adapted to the barrel being slidably inserted in the two limit slide grooves.

[0007] As a further preferred embodiment of the technical solution, a screw is rotatably connected between the two vertical plates, the mounting seat is threadedly sleeved on the outside of the screw, a motor is fixedly mounted on the outer wall of one side of one of the vertical plates, and the output end of the motor is coaxially fixed with one end of the screw.

[0008] When necessary, the die body can be replaced quickly, which greatly improves the replacement efficiency of the die body, and the whole process does not require the use of any other tools, making the operation easier. If the die body needs to be replaced, after the motor is started, its output shaft drives the screw to rotate, and the mounting seat is set on two limit rods and is restricted from rotating. The screw can drive the mounting seat to move along the limit rods, and the support frame moves synchronously with the mounting seat. Another die body installed on the top of the support frame replaces the original die body position, thereby completing the replacement.

[0009] As a further preferred embodiment of the present technical solution, a reinforcement component is installed on the top of the base plate, and the reinforcement component is located on one side of the support frame.

[0010] As a further preferred embodiment of the present technical solution, the reinforcement component includes a limit frame 1 fixedly connected to the top outer wall of the base plate, the outer sliding sleeve of the limit frame 1 is provided with an extrusion column, the extrusion column is located on one side of the support frame, and two horizontally arranged springs 2 are fixedly connected between the extrusion column and the limit frame 1.

[0011] As a further preferred embodiment of the present technical solution, a limiting frame 2 is fixedly connected to one side of the top outer wall of the base plate, a sliding sleeve of the limiting frame 2 is provided with a moving frame, two extrusion protrusions are provided on the outer wall of one side of the moving frame, an arc-shaped protrusion is provided at the bottom of the outer wall of one side of the extrusion column, and the arc-shaped protrusion is at the same level as the two extrusion protrusions, two springs 1 are fixedly connected between the moving frame and the limiting frame 2, and two extension plates corresponding to the position of the moving frame are provided on the outer wall of one side of the mounting seat.

[0012] The extension plate outside the mounting seat contacts the inner wall of the moving frame and pushes it to move. The thrust generated by the compression of the spring is overcome, and an extrusion protrusion outside the moving frame pushes the moving frame to slide along the limit frame through the arc-shaped protrusion. When the support frame reaches a suitable position, the extrusion column will squeeze the outer wall of the support frame, and the die body will fit tightly with the head of the barrel.

[0013] As a further preferred embodiment of the present technical solution, two mutually meshing screws are arranged inside the barrel, and a heating and cooling device is arranged outside the barrel.

[0014] As a further preferred embodiment of the present technical solution, a mounting mesh cover is fixedly mounted on one end of the barrel, and a driving device adapted to the two screws is mounted inside the mounting mesh cover.

[0015] The utility model provides a bamboo powder biodegradable material twin-screw extruder with an easily replaceable extrusion die head, which has the following beneficial effects:

[0016] (1) The utility model provides a forming assembly so that the die body can be quickly replaced when necessary, which greatly improves the replacement efficiency of the die body. Moreover, the whole process does not require any other tools, making the operation easier. If the die body needs to be replaced, after the motor is started, its output shaft drives the screw to rotate. The mounting seat is set on two limit rods and is restricted from rotating. The screw can drive the mounting seat to move along the limit rods. The support frame moves synchronously with the mounting seat. Another die body installed on the top of the support frame replaces the original die body, thereby completing the replacement.

[0017] (2) The utility model sets a reinforcement component, and the extension plate outside the mounting seat contacts the inner wall of the movable frame and pushes it to move. The thrust generated by the compression of the spring is overcome, and an extrusion protrusion outside the movable frame pushes the movable frame to slide along the limit frame through the arc-shaped protrusion. When the support frame reaches a suitable position, the extrusion column will squeeze the outer wall of the support frame, and the die head body will fit tightly with the head of the barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of an enlarged internal structure of a limiting frame of the utility model;

[0020] Figure 3 It is a partial enlarged structural schematic diagram of the reinforcement component of the utility model;

[0021] Figure 4 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. bottom plate; 2. barrel; 3. installation mesh cover; 4. forming component; 5. reinforcement component; 401. vertical plate; 402. screw rod; 403. limit rod; 404. mounting seat; 405. support frame; 406. limit slide groove; 407. die body; 408. motor; 501. limit frame 1; 502. extrusion column; 503. arc-shaped protrusion; 504. limit frame 2; 505. movable frame; 506. spring 1; 507. extrusion protrusion; 508. extension plate; 509. spring 2. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides a technical solution: Figure 1 As shown in Figure 4, in this embodiment, a twin-screw extruder for bamboo powder biodegradable materials with easily replaceable extrusion die heads includes a base plate 1, a horizontally arranged barrel 2 is installed on the top outer wall of the base plate 1, a forming component 4 is installed on the top of the base plate 1, and the forming component 4 is located at the discharge port of the barrel 2. The forming component 4 includes two vertical plates 401 fixedly connected to one side of the top outer wall of the base plate 1, two limiting rods 403 are fixedly connected between the two vertical plates 401, and the two limiting rods 403 are slidably sleeved with the same mounting seat 404, a T-shaped limiting groove is provided on the top outer wall of the mounting seat 404, and a support frame 405 is slidably inserted inside the T-shaped limiting groove, and two vertically arranged limiting slide grooves 406 are provided on the top outer wall of the support frame 405, and a die body 407 adapted to the barrel 2 is slidably inserted inside the two limiting slide grooves 406.

[0025] A screw rod 402 is rotatably connected between the two vertical plates 401 , and a mounting seat 404 is threadedly sleeved on the outside of the screw rod 402 . A motor 408 is fixedly mounted on the outer wall of one side of one vertical plate 401 , and the output end of the motor 408 is coaxially fixed with one end of the screw rod 402 .

[0026] Before processing, if the die body 407 needs to be replaced, after the motor 408 is started, its output shaft drives the screw 402 to rotate, and the mounting seat 404 is sleeved on the two limit rods 403 and is restricted from rotating. The screw 402 can drive the mounting seat 404 to move along the limit rods 403, and the support frame 405 moves synchronously with the mounting seat 404. Another die body 407 installed on the top of the support frame 405 replaces the original die body 407, thereby completing the replacement.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, a reinforcement component 5 is installed on the top of the base plate 1, and the reinforcement component 5 is located on one side of the support frame 405.

[0028] The reinforcement component 5 includes a limit frame 501 fixedly connected to the top outer wall of the base plate 1, and an external sliding sleeve of the limit frame 501 is provided with an extrusion column 502, and the extrusion column 502 is located on one side of the support frame 405. Two horizontally arranged springs 509 are fixedly connected between the extrusion column 502 and the limit frame 501.

[0029] A limiting frame 504 is fixedly connected to one side of the top outer wall of the base plate 1, and a sliding sleeve of the limiting frame 504 is provided with a moving frame 505. Two extrusion protrusions 507 are provided on the outer wall of one side of the moving frame 505, and an arc-shaped protrusion 503 is provided on the bottom of the outer wall of one side of the extrusion column 502, and the arc-shaped protrusion 503 and the two extrusion protrusions 507 are at the same level. Two springs 506 are fixedly connected between the moving frame 505 and the limiting frame 504, and two extension plates 508 corresponding to the position of the moving frame 505 are provided on the outer wall of one side of the mounting seat 404.

[0030] The extension plate 508 outside the mounting seat 404 contacts the inner wall of the movable frame 505 and pushes it to move. The thrust generated by the compression of the spring 1 506 is overcome, and an extrusion protrusion 507 outside the movable frame 505 pushes the movable frame 505 to slide along the limit frame 1 501 through the arc protrusion 503. When the support frame 405 reaches a suitable position, the extrusion column 502 will squeeze the outer wall of the support frame 405, and the die body 407 will fit tightly with the head of the barrel 2. When the mounting seat 404 moves in the opposite direction, the movable frame 505 will no longer be restricted, and the compressed spring 1 506 will stretch and lengthen, and the extrusion protrusion 507 will be driven to move to the side of the arc protrusion 503, and then the extrusion column 502 is driven by the spring 2 509 to leave the support frame 405, so that it will not affect the normal movement of the support frame 405.

[0031] like Figure 1 As shown, two mutually meshing screws are arranged inside the barrel 2, and a heating and cooling device is arranged outside the barrel 2.

[0032] A mounting screen 3 is fixedly mounted on one end of the barrel 2, and a driving device adapted to the two screws is mounted inside the mounting screen 3.

[0033] The raw material of bamboo powder biodegradable material enters the feeding section of the barrel 2 from the hopper, and the driving machine installed in the inner space of the mesh cover 3 drives the two screws to rotate through the transmission device. As the screws rotate, the materials move forward under the push of the thread grooves. The special structure of the screws causes the materials to be sheared, mixed and extruded during the forward conveying process. Under the shearing and extrusion of the screws, the materials are gradually melted and plasticized. At the same time, the heating device outside the barrel 2 provides heat for the materials to promote the plasticization process. The plasticized and mixed materials finally reach the molding section. Under a certain pressure and temperature, the materials are extruded through the die body 407 to become continuous products of the desired shape.

[0034] The utility model provides a bamboo powder biodegradable material twin-screw extruder with an easily replaceable extrusion die head. The specific working principle is as follows:

[0035] When the device is working, the raw material of bamboo powder biodegradable material enters the feeding section of the barrel 2 from the hopper, and the driving machine installed in the inner space of the mesh cover 3 drives the two screws to rotate through the transmission device. As the screws rotate, the materials move forward under the push of the thread grooves. The special structure of the screws causes the materials to be sheared, mixed and extruded during the forward conveying process. Under the shearing and extrusion of the screws, the materials gradually melt and plasticize. At the same time, the heating device outside the barrel 2 provides heat for the materials to promote the plasticizing process. The plasticized and mixed materials finally reach the molding section. Under a certain pressure and temperature, the materials are extruded through the die body 407 to become continuous products of the desired shape. Before processing, if the die body 407 needs to be replaced, after the motor 408 is started, its output shaft drives the screw 402 to rotate, and the mounting seat 404 is sleeved on the two limit rods 403 and is restricted from rotating. The screw 402 can drive the mounting seat 404 to move along the limit rods 403. 405 moves synchronously with the mounting base 404, and another die body 407 mounted on the top of the support frame 405 replaces the original die body 407 position, thereby completing the replacement, the extension plate 508 outside the mounting base 404 contacts the inner wall of the mobile frame 505 and pushes it to move, the thrust generated by the compression of the spring 1 506 is overcome, and an extrusion protrusion 507 outside the mobile frame 505 pushes the mobile frame 505 to slide along the limit frame 1 501 through the arc protrusion 503. When the support frame 405 reaches a suitable position, the extrusion column 502 will squeeze the outer wall of the support frame 405, and the die body 407 will fit tightly with the head of the barrel 2. When the mounting seat 404 moves in the opposite direction, the movable frame 505 will no longer be restricted, and the compressed spring 1 506 will stretch and lengthen, and the extrusion protrusion 507 will be driven to move to the side of the arc-shaped protrusion 503, and then the extrusion column 502 is driven by the spring 2 509 to leave the support frame 405, so that it will not affect the normal movement of the support frame 405.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A twin-screw extruder for bamboo powder biodegradable materials with easily replaceable extrusion die head, comprising a bottom plate (1), characterized in that: A horizontally arranged barrel (2) is installed on the top outer wall of the bottom plate (1), and a forming assembly (4) is installed on the top of the bottom plate (1). The forming assembly (4) is located at the discharge port of the barrel (2). The forming assembly (4) comprises two vertical plates (401) fixedly connected to one side of the top outer wall of the bottom plate (1), two limit rods (403) are fixedly connected between the two vertical plates (401), and the two limit rods (403) are slidably sleeved with the same mounting seat (404), a T-shaped limit groove is provided on the top outer wall of the mounting seat (404), and a support frame (405) is slidably inserted in the T-shaped limit groove, and two vertically arranged limit slide grooves (406) are provided on the top outer wall of the support frame (405), and a die head body (407) adapted to the barrel (2) is slidably inserted in the two limit slide grooves (406).

2. The twin-screw extruder for bamboo powder biodegradable materials with easily replaceable extrusion die head according to claim 1, characterized in that: A screw rod (402) is rotatably connected between the two vertical plates (401), and the mounting seat (404) is threadedly sleeved on the outside of the screw rod (402). A motor (408) is fixedly mounted on the outer wall of one side of one of the vertical plates (401), and the output end of the motor (408) is coaxially fixed with one end of the screw rod (402).

3. The twin-screw extruder for bamboo powder biodegradable materials with easily replaceable extrusion die head according to claim 1, characterized in that: A reinforcement component (5) is installed on the top of the base plate (1), and the reinforcement component (5) is located on one side of the support frame (405).

4. The twin-screw extruder for bamboo powder biodegradable materials with easily replaceable extrusion die head according to claim 3, characterized in that: The reinforcement component (5) comprises a limit frame (501) fixedly connected to the top outer wall of the bottom plate (1); an outer sliding sleeve of the limit frame (501) is provided with an extrusion column (502); the extrusion column (502) is located on one side of the support frame (405); and two horizontally arranged springs (509) are fixedly connected between the extrusion column (502) and the limit frame (501).

5. The twin-screw extruder for bamboo powder biodegradable materials with easily replaceable extrusion die head according to claim 4, characterized in that: A second limiting frame (504) is fixedly connected to one side of the top outer wall of the bottom plate (1); a sliding sleeve of the second limiting frame (504) is provided with a moving frame (505); two extrusion protrusions (507) are provided on one side of the outer wall of the moving frame (505); an arc-shaped protrusion (503) is provided at the bottom of the outer wall of one side of the extrusion column (502); and the arc-shaped protrusion (503) and the two extrusion protrusions (507) are at the same level; two springs (506) are fixedly connected between the moving frame (505) and the second limiting frame (504); and two extension plates (508) corresponding to the position of the moving frame (505) are provided on one side of the outer wall of the mounting seat (404).

6. The twin-screw extruder for bamboo powder biodegradable materials with easily replaceable extrusion die head according to claim 1, characterized in that: Two mutually meshing screws are arranged inside the barrel (2), and a heating and cooling device is arranged outside the barrel (2).

7. The twin-screw extruder for bamboo powder biodegradable materials with easily replaceable extrusion die head according to claim 6, characterized in that: A mounting screen (3) is fixedly mounted on one end of the barrel (2), and a driving device adapted to the two screws is mounted inside the mounting screen (3).

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