Double-screw efficient mixing and granulating device for producing building material grade PVDF (Polyvinylidene Fluoride) membrane

Abstract

The utility model discloses a double-screw efficient mixing and granulating device for producing a building material grade PVDF (Polyvinylidene Fluoride) membrane, and relates to the technical field of PVDF membrane production. The top end of the base is fixedly provided with a double-screw machine body, one end of the double-screw machine body is fixedly provided with a pelletizing shell, the bottom of the pelletizing shell is fixedly provided with a screening box, the inner side of the pelletizing shell is rotatably provided with a pelletizing cutter, and the outer side of the pelletizing shell is fixedly provided with a first motor; the driving end of the first motor is fixedly connected with the pelletizing cutter; through cooperation of a first motor, a pelletizing cutter, a screening box, a second motor, a main gear and a driven gear, the driven gear drives a rotating shaft and a connecting rod to swing in a reciprocating mode, a vertical ring and a transverse ring are matched to enable a screening plate to shake to screen materials, the connecting rod naturally stretches out and draws back to be matched with the vertical ring to conduct compensation motion, and therefore the pelletizing and screening integrated function is achieved; and the time for transporting the extruded material to a grain-sized dicing and screening station is greatly shortened, the production efficiency is further improved, and the device is worthy of popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production technology field of PVDF film, specifically to a double screw high -efficient mixing granulation device for building material grade PVDF film production. BACKGROUND

[0002] In the field of building materials, polyvinylidene fluoride PVDF film is widely used in the production of various building materials due to its excellent weather resistance, chemical stability and mechanical properties, however, in the production process of PVDF film, how to efficiently mix, granulate and screen the raw materials becomes the key to improving product quality and production efficiency.

[0003] In the prior art, some double screw extruders are used for PVDF film production, but lack targeted design optimization, such as the effect of saving the time of transporting materials after extrusion for pelletizing and screening of qualified products, etc. To solve the above problems, the inventor proposes a double screw high -efficient mixing granulation device for building material grade PVDF film production to solve the above problems. SUMMARY

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a double screw high -efficient mixing granulation device for building material grade PVDF film production, including base, the top of base is fixedly installed with double screw machine body, one end of double screw machine body is fixedly installed with pelletizing shell, the bottom of pelletizing shell is fixedly installed with screening box, the inner side of pelletizing shell is rotatably installed with pelletizing cutter, the outer side of pelletizing shell is fixedly installed with first motor, the driving end of first motor is fixedly connected with pelletizing cutter, the middle part of screening box is slidably installed with screening plate, one end of screening plate is fixedly connected with horizontal ring, one end of horizontal ring is movably connected with vertical ring, one end of vertical ring is fixedly connected with connecting rod, the top of base is rotatably installed with rotating shaft, one end of connecting rod is fixedly connected with rotating shaft, the middle part of connecting rod is fixedly sleeved with driven gear, the top of base is fixedly installed with second motor, the driving end of second motor is fixedly connected with main gear, the main gear is meshedly connected with driven gear.

[0005] Preferably, the top of the pelletizing shell is slidably inserted with a movable plate, one end of the movable plate is fixedly installed with a return spring, one end of the return spring is fixedly connected with the pelletizing shell, the top of the pelletizing shell is fixedly installed with a fixed plate, one end of the fixed plate is slidably installed with a positioning column, one end of the movable plate is provided with symmetrically distributed positioning holes, and one of the positioning holes is movably sleeved at the bottom of the positioning column.

[0006] Preferably, one end of the screening plate is fixedly installed with symmetrically distributed auxiliary springs, one end of the auxiliary springs is fixedly connected with the screening box.

[0007] Preferably, one end of the screening box is hinged with symmetrically distributed sealing doors.

[0008] Preferably, a pull rod is fixedly installed at one end of each of the sealed doors.

[0009] Preferably, a T-shaped handle is fixedly installed at one end of the movable plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. Through the cooperation of the first motor, pelletizing blade, screening box, second motor, main gear, and driven gear, the driven gear drives the rotating shaft and connecting rod to swing back and forth. The vertical ring and horizontal ring cooperate to make the screening plate shake to screen the material. The connecting rod naturally extends and retracts to cooperate with the vertical ring to compensate for the movement, thus realizing the integrated function of pelletizing and screening. This greatly shortens the time for the material to be transported from the extruded material to the pelletizing and screening station, further improving production efficiency. It is worth promoting.

[0012] 2. By pulling the positioning pin out of the positioning hole, the movable plate can be moved. Then, the positioning pin can be inserted into another positioning hole to position the movable plate. This makes it easy to clean and maintain the pelletizing blades in the pelletizing shell. After cleaning, pull the positioning pin out of the positioning hole, and the return spring will automatically return the movable plate to its original position. The structure is ingenious and makes it very convenient to maintain the pelletizing blades. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0015] Fig. 2 This is a cross-sectional schematic diagram of the pellet shell structure of this utility model.

[0016] Fig. 3 This is a schematic diagram showing the disassembled structure of the pelletizing shell and screening box of this utility model.

[0017] In the diagram: 1. Base; 11. Twin-screw extruder body; 12. Pelletizer shell; 13. Screening box; 14. Pelletizer blade; 15. First motor; 16. Screening plate; 17. Horizontal ring; 18. Vertical ring; 19. Rotating shaft; 20. Connecting rod; 21. Driven gear; 22. Second motor; 23. Main gear; 24. Movable plate; 25. Return spring; 26. Fixed plate; 27. Positioning column; 28. Positioning hole; 29. ​​Auxiliary spring; 30. Sealing door; 31. Pull rod; 32. T-shaped handle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figs. 1-3 As shown, this utility model provides a technical solution: a twin-screw high-efficiency mixing and granulation device for producing building material-grade PVDF membranes, including a base 1, a twin-screw compressor body 11 fixedly installed at the top of the base 1, a pelletizing shell 12 fixedly installed at one end of the twin-screw compressor body 11, a screening box 13 fixedly installed at the bottom of the pelletizing shell 12, a pelletizing blade 14 rotatably installed on the inner side of the pelletizing shell 12, and a first motor 15 fixedly installed on the outer side of the pelletizing shell 12. The drive end of the first motor 15 is fixedly connected to the pelletizing blade 14 for screening. A screening plate 16 is slidably installed in the middle of the box 13. A horizontal ring 17 is fixedly connected to one end of the screening plate 16. A vertical ring 18 is movably connected to one end of the horizontal ring 17. A connecting rod 20 is fixedly connected to one end of the vertical ring 18. A rotating shaft 19 is rotatably installed at the top of the base 1. One end of the connecting rod 20 is fixedly connected to the rotating shaft 19. A driven gear 21 is fixedly sleeved in the middle of the connecting rod 20. A second motor 22 is fixedly installed at the top of the base 1. A main gear 23 is fixedly connected to the drive end of the second motor 22. The main gear 23 meshes with the driven gear 21.

[0020] A movable plate 24 is slidably inserted into the top of the pellet hull 12. A return spring 25 is fixedly installed at one end of the movable plate 24. One end of the return spring 25 is fixedly connected to the pellet hull 12. A fixed plate 26 is fixedly installed at the top of the pellet hull 12. A positioning post 27 is slidably installed at one end of the fixed plate 26. A symmetrically distributed positioning hole 28 is opened at one end of the movable plate 24. One positioning hole 28 is movably sleeved on the bottom of the positioning post 27.

[0021] By adopting the above technical scheme, the positioning column 27 is pulled out of the positioning hole 28, the movable plate 24 is immediately pulled to move, and then the positioning column 27 is clamped into another positioning hole 28 to position the movable plate 24, so that the cutting grain tool 14 in the cutting grain shell 12 is conveniently cleaned and maintained, after treatment, the positioning column 27 is pulled out of the positioning hole 28, and the reset spring 25 automatically resets the movable plate 24, the structure is ingenious, and the cutting grain tool 14 is very convenient to maintain.

[0022] One end of the screening plate 16 is fixedly provided with symmetrically distributed auxiliary springs 29, one end of the auxiliary spring 29 is fixedly connected with the screening box 13.

[0023] By adopting the above technical scheme, the auxiliary spring 29 is arranged to improve the movement performance of the screening plate 16 during reciprocating movement.

[0024] One end of the screening box 13 is hingedly provided with symmetrically distributed sealing doors 30.

[0025] By adopting the above technical scheme, the sealing door 30 is opened to facilitate the collection and treatment of qualified materials and unqualified materials after screening.

[0026] One end of the sealing door 30 is fixedly provided with a pull rod 31.

[0027] By adopting the above technical scheme, the sealing door 30 is opened by using the pull rod 31.

[0028] One end of the movable plate 24 is fixedly provided with a T-shaped handle 32.

[0029] By adopting the above technical scheme, the movable plate 24 is pulled to move by using the T-shaped handle 32.

[0030] Working principle: first, the material for producing PVDF film is poured into the double screw machine body 11, the double screw machine body 11 is started to extrude the material, the extruded material enters the granulating shell 12, then the first motor 15 is started to rotate the granulating cutter 14 to granulate the material, the granulated material falls into the screening box 13, then the second motor 22 is started to reciprocatingly rotate the main gear 23, the main gear 23 rotates to drive the gear 21 to rotate, the gear 21 drives the rotating shaft 19 and the connecting rod 20 to reciprocatingly swing, the vertical ring 18 cooperates with the horizontal ring 17 to make the screening plate 16 shake to screen the material, the connecting rod 20 naturally extends and contracts to cooperate with the vertical ring 18 to compensate movement, so that the integration function of granulation and screening is realized, the time of transporting the material after extrusion to the granulation and screening station is greatly shortened, the production efficiency is further improved, it is worth promoting, the positioning column 27 is pulled away from the positioning hole 28, then the movable plate 24 can be pulled to move, then the positioning column 27 is clamped into another positioning hole 28 to position the movable plate 24, so that the granulating cutter 14 in the granulating shell 12 can be conveniently cleaned and maintained, after processing, the positioning column 27 is pulled away from the positioning hole 28, the reset spring 25 automatically resets the movable plate 24, the structure is ingenious, and the granulating cutter 14 is very convenient to maintain.

[0031] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A twin-screw high-efficiency mixing and granulation device for producing building material-grade PVDF membranes, comprising a base (1), characterized in that: A twin-screw compressor body (11) is fixedly installed at the top of the base (1). A pelletizing shell (12) is fixedly installed at one end of the twin-screw compressor body (11). A screening box (13) is fixedly installed at the bottom of the pelletizing shell (12). A pelletizing blade (14) is rotatably installed on the inner side of the pelletizing shell (12). A first motor (15) is fixedly installed on the outer side of the pelletizing shell (12). The drive end of the first motor (15) is fixedly connected to the pelletizing blade (14). A screening plate (16) is slidably installed in the middle of the screening box (13). One end of the screening plate (16) is fixed. A horizontal ring (17) is connected, and a vertical ring (18) is movably connected to one end of the horizontal ring (17). A connecting rod (20) is fixedly connected to one end of the vertical ring (18). A rotating shaft (19) is rotatably installed at the top of the base (1). One end of the connecting rod (20) is fixedly connected to the rotating shaft (19). A driven gear (21) is fixedly sleeved in the middle of the connecting rod (20). A second motor (22) is fixedly installed at the top of the base (1). A main gear (23) is fixedly connected to the driving end of the second motor (22). The main gear (23) meshes with the driven gear (21).

2. The twin-screw high-efficiency mixing and granulation device for producing building-grade PVDF membranes as described in claim 1, characterized in that, A movable plate (24) is slidably inserted into the top of the pellet shell (12). A return spring (25) is fixedly installed at one end of the movable plate (24). One end of the return spring (25) is fixedly connected to the pellet shell (12). A fixed plate (26) is fixedly installed at the top of the pellet shell (12). A positioning post (27) is slidably installed at one end of the fixed plate (26). A symmetrically distributed positioning hole (28) is opened at one end of the movable plate (24). One of the positioning holes (28) is movably sleeved on the bottom of the positioning post (27).

3. The twin-screw high-efficiency mixing and granulation device for producing building-grade PVDF membranes as described in claim 1, characterized in that, One end of the screening plate (16) is fixedly installed with symmetrically distributed auxiliary springs (29), and one end of the auxiliary springs (29) is fixedly connected to the screening box (13).

4. The twin-screw high-efficiency mixing and granulation device for producing building material-grade PVDF membrane as described in claim 1, characterized in that, The screening box (13) is hinged at one end and has symmetrically distributed sealing doors (30).

5. The twin-screw high-efficiency mixing and granulation device for producing building material-grade PVDF membranes as described in claim 4, characterized in that, A pull rod (31) is fixedly installed at one end of each of the sealing doors (30).

6. The twin-screw high-efficiency mixing and granulation device for producing building-grade PVDF membranes as described in claim 2, characterized in that, A T-shaped handle (32) is fixedly installed at one end of the movable plate (24).

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