Device for screening polyester chips

Abstract

The device comprises a slice screening box, a feeding hopper is arranged on the slice screening box, a material screening net plate is rotationally installed on the inner wall of one side of the slice screening box, and a screening and collecting assembly is arranged on the inner wall of the bottom side of the slice screening box. An air suction hole is formed in the inner wall of one side of the chip screening box, a double-shaft motor is installed on the air suction hole, and the two output ends of the double-shaft motor are both connected with rotating shafts. According to the device for screening the polyester chips, the polyester chips in the feeding hopper fall on a screening net plate to be screened, and the small chips will fall into a first collecting frame; and larger dust falls into a second collecting frame, suction fan blades and a double-shaft motor are arranged to generate suction air after running, powder and dust generated in the screening process are sucked away and filtered through a filter box, and the situation that the physical and psychological health of workers is affected by the powder and dust is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of polyester chip screening, in particular to a device for polyester chip screening. Background Art

[0002] Polyester materials are the general term for polymers obtained by polycondensation of polyols and polyacids, mainly referring to linear thermoplastic resins such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and polyarylate. Polyester materials are a type of engineering plastic with excellent performance and wide applications, and are widely used in the fields of packaging, electronics and electrical appliances, medical and health, construction, automobiles, etc. Polyester chips are sheet-like particles with a size of about 4x5x2 mm obtained by casting and granulating polyester melt.

[0003] After retrieval, the patent with the application number CN202220208302.8 discloses a polyester chip screening device. Due to the machining accuracy of mechanical processing equipment and the errors in the setting of process parameters, it is inevitable to cut out particulate matters with sizes that do not meet the requirements, and a large amount of powder will be generated during the cutting process. During the screening process of polyester chips, the screening plate is prone to blockage. At the same time, during the screening process, the generated powder dust will float into the air, polluting the screening environment and easily damaging the physical and mental health of workers. For this reason, a device for polyester chip screening is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a device for polyester chip screening to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A device for polyester chip screening includes a chip screening box, on which a feed hopper is provided. A screening mesh plate is rotatably installed on one inner wall of the chip screening box, and a screening and collecting component is provided on the bottom inner wall of the chip screening box. An air suction hole is opened on one inner wall of the chip screening box, and a double-shaft motor is installed on the air suction hole. Both output ends of the double-shaft motor are connected with rotating shafts. An air suction component is provided on one rotating shaft. A rotating shaft is rotatably installed on the chip screening box, and a knocking block is fixedly installed on the rotating shaft. The knocking block is adapted to the screening mesh plate. A conveying component is provided to connect the rotating shaft and the rotating shaft. A connecting shaft is rotatably installed on the top side of the chip screening box, and a driving component is provided to connect the connecting shaft and the rotating shaft. An indirect feeding component is connected to the connecting shaft, and the indirect feeding component is connected to the feed hopper.

[0007] Preferably, the screening and collecting assembly includes a first collecting frame and a second collecting frame installed on the inner wall of the bottom side of the slicing screening box. The first collecting frame is located below the screening mesh plate, and the second collecting frame is located on one side of the screening mesh plate. A door panel is provided on one side of the slicing screening box. An inclined baffle is installed on the inner wall of one side of the slicing screening box, and the inclined baffle is located on one side of the first collecting frame. A bottom supporting block is fixedly installed on the inner wall of one side of the slicing screening box, and the screening mesh plate is placed on the bottom supporting block.

[0008] Preferably, the air suction assembly includes a plurality of suction fan blades installed on a rotating shaft. A filter box is installed on one side of the slicing screening box, and the filter box is located on one side of the air suction holes.

[0009] Preferably, the conveying assembly includes a first rotating wheel fixedly sleeved on a rotating shaft, a second rotating wheel fixedly sleeved on the rotating shaft, and a rotating belt movably sleeved on the first rotating wheel and the second rotating wheel.

[0010] Preferably, the driving assembly includes driving wheels fixedly sleeved on the rotating shaft and the connecting shaft, and the same driving belt is sleeved on the two driving wheels.

[0011] Preferably, the indirect feeding assembly includes a rotating disk fixedly installed at one end of the connecting shaft. A pressing rod is rotatably installed on one side of the rotating disk. One end of the pressing rod is rotatably installed with a connecting rod, and one end of the connecting rod is fixedly installed with a blocking and dropping plate. A blocking hole is provided on one side of the feeding hopper, and the blocking and dropping plate is movably installed in the blocking hole.

[0012] Preferably, a guiding block is fixedly installed on the top side of the slicing screening box, and one end of the connecting rod movably penetrates through the guiding block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the device for polyester chip screening, the polyester chips in the feeding hopper fall on the screening mesh plate for screening operation. The smaller ones will fall into the first collecting frame, and the larger ones will fall into the second collecting frame. The provided suction fan blades generate suction after the operation of the double-shaft motor, sucking away the powder and dust generated during the screening process and filtering through the filter box, avoiding the powder and dust from affecting the physical and mental health of the staff. The provided conveying assembly can drive the rotating shaft to rotate, thereby driving the knocking block to rotate, continuously knocking and vibrating the screening mesh plate. After the screening mesh plate is continuously knocked, the screening speed of the screening mesh plate will be accelerated, and the polyester chips blocking the screen holes will also be vibrated up, achieving an effective anti-blocking effect.

[0014] The provided driving assembly rotates the driving wheel through the rotation of the rotating shaft, thereby driving the connecting shaft to rotate. The provided indirect feeding assembly has a rotating disk on the indirect feeding assembly that rotates continuously. Under the action of the extrusion rod, it drives the blocking falling plate to move back and forth continuously, and the polyester chips in the feed hopper will be fed intermittently. Through intermittent feeding, the problem of excessive feeding at one time and inconvenience in screening is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a rear view three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 is a sectional structural schematic diagram of the present utility model;

[0018] Figure 4 is a partial sectional structural schematic diagram of the present utility model;

[0019] Figure 5 is the present utility model Figure 3 structural schematic diagram of part A in.

[0020] In the figure: 1, slicing screening box; 2, feed hopper; 3, screening mesh plate; 4, bottom support block; 5, first collection frame; 6, second collection frame; 7, access door panel; 8, inclined baffle; 9, air suction hole; 10, double-shaft motor; 11, rotating shaft; 12, air suction fan blade; 13, filter box; 14, rotating shaft; 15, first rotating wheel; 16, second rotating wheel; 17, rotating belt; 18, knocking block; 19, connecting shaft; 20, driving wheel; 21, driving belt; 22, rotating disk; 23, extrusion rod; 24, connecting rod; 25, blocking falling plate; 26, blocking hole; 27, guiding block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment: Refer to Figures 1-5, a device for screening polyester chips, including a chip screening box 1, a feed hopper 2 is provided on the chip screening box 1, a screening mesh plate 3 is rotatably installed on one inner wall of the chip screening box 1, and a screening and collecting component is provided on the bottom inner wall of the chip screening box 1. The screening and collecting component includes a first collecting frame 5 and a second collecting frame 6 installed on the bottom inner wall of the chip screening box 1. The first collecting frame 5 is located below the screening mesh plate 3, and the second collecting frame 6 is located on one side of the screening mesh plate 3. A removal door panel 7 is provided on one side of the chip screening box 1. An inclined baffle 8 is installed on one inner wall of the chip screening box 1. The inclined baffle 8 is located on one side of the first collecting frame 5. A bottom support block 4 is fixedly installed on one inner wall of the chip screening box 1. The screening mesh plate 3 is placed on the bottom support block 4. The polyester chips to be screened are placed in the feed hopper 2. The polyester chips in the feed hopper 2 will fall on the screening mesh plate 3. The screening mesh plate 3 can perform screening operations on the falling polyester chips. The smaller ones will fall into the first collecting frame 5, and the larger ones will fall into the second collecting frame 6. The provided inclined baffle 8 facilitates guiding the smaller polyester chips to fall into the first collecting frame 5.

[0023] Specifically, an air suction hole 9 is opened on one inner wall of the chip screening box 1. A double-shaft motor 10 is installed on the air suction hole 9. Both output ends of the double-shaft motor 10 are connected with rotating shafts 11. An air suction component is provided on one rotating shaft 11. The air suction component includes a plurality of air suction fan blades 12 installed on one rotating shaft 11. A filter box 13 is installed on one side of the chip screening box 1. The filter box 13 is located on one side of the air suction hole 9. During the screening process, the double-shaft motor 10 is started to operate. One rotating shaft 11 rotates, driving the air suction fan blades 12 to rotate. After the air suction fan blades 12 rotate, air suction will be generated to suck away the powder and dust generated during the screening process, and it will be filtered through the filter box 13.

[0024] Specifically, a rotating shaft 14 is rotatably installed on the chip screening box 1. A knocking block 18 is fixedly installed on the rotating shaft 14. The knocking block 18 is adapted to the screening mesh plate 3. A conveying component is provided for connecting between the rotating shaft 14 and the rotating shaft 11. The conveying component includes a first rotating wheel 15 fixedly sleeved on one rotating shaft 11. A second rotating wheel 16 is fixedly sleeved on the rotating shaft 14. A rotating belt 17 is movably sleeved on the first rotating wheel 15 and the second rotating wheel 16. With the provided conveying component, when the other rotating shaft 11 rotates to drive the first rotating wheel 15 to rotate, under the action of the rotating belt 17 and the second rotating wheel 16, the rotating shaft 14 is driven to rotate, thereby driving the knocking block 18 to rotate. After the knocking block 18 rotates, it can continuously knock and vibrate the screening mesh plate 3. The knocking block 18 is a rubber block. After the screening mesh plate 3 is continuously knocked, the screening speed of the screening mesh plate 3 will be accelerated, and at the same time, the polyester chips blocking the sieve holes will also be vibrated up, achieving an effective anti-blocking effect.

[0025] Specifically, a connecting shaft 19 is rotatably installed on the top side of the slicing and screening box 1. A driving component is connected between the connecting shaft 19 and the rotating shaft 14. An indirect feeding component is connected to the connecting shaft 19, and the indirect feeding component is connected to the feed hopper 2. The driving component includes driving wheels 20 fixedly sleeved on the rotating shaft 14 and the connecting shaft 19. The same driving belt 21 is sleeved on the two driving wheels 20. The indirect feeding component includes a rotating disc 22 fixedly installed at one end of the connecting shaft 19. One side of the rotating disc 22 is rotatably installed with a pressing rod 23. One end of the pressing rod 23 is rotatably installed with a connecting rod 24. One end of the connecting rod 24 is fixedly installed with a blocking and dropping plate 25. A blocking hole 26 is opened on one side of the feed hopper 2. The blocking and dropping plate 25 is movably installed in the blocking hole 26. A guiding block 27 is fixedly installed on the top side of the slicing and screening box 1. One end of the connecting rod 24 movably penetrates through the guiding block 27. With the provided driving component, when the rotating shaft 14 rotates, it drives the driving wheel 20 to rotate, thereby driving the connecting shaft 19 to rotate. With the provided indirect feeding component, the rotating disc 22 on the indirect feeding component rotates continuously, and under the action of the pressing rod 23, it drives the blocking and dropping plate 25 to move back and forth continuously. The polyester chips in the feed hopper 2 will be fed intermittently. Through the intermittent feeding, the problem of excessive feeding at one time and inconvenient screening is avoided.

[0026] In use: After the production of polyester chips, it is necessary to screen them to select polyester chips of the same size. Place the polyester chips to be screened in the feed hopper 2. The polyester chips in the feed hopper 2 will fall onto the screening mesh plate 3. The screening mesh plate 3 can perform screening operations on the falling polyester chips. The smaller ones will fall into the first collection box 5, and the larger ones will fall into the second collection box 6. The inclined baffle 8 is provided to facilitate guiding the smaller polyester chips to fall into the first collection box 5. During the screening process, start the operation of the double-shaft motor 10. One rotating shaft 11 rotates, driving the suction fan blade 12 to rotate. After the suction fan blade 12 rotates, it will generate suction to suck away the powder and dust generated during the screening process. It passes through the filter box 13 for filtration to prevent the powder and dust from affecting the physical and mental health of the staff. For the provided conveying component, the other rotating shaft 11 rotates to drive the first rotating wheel 15 to rotate. Under the action of the rotating belt 17 and the second rotating wheel 16, it drives the rotating shaft 14 to rotate, thereby driving the knocking block 18 to rotate. After the knocking block 18 rotates, it can continuously knock and vibrate the screening mesh plate 3. The knocking block 18 is a rubber block. After the screening mesh plate 3 is continuously knocked, the screening speed of the screening mesh plate 3 will be accelerated, and the polyester chips blocking the sieve holes will also be vibrated up, achieving an effective anti-blocking effect. The diameter of the second rotating wheel 16 is larger than that of the first rotating wheel 15, so as to achieve the effect of rotational speed reduction. For the provided driving component, the rotating shaft 14 rotates to drive the driving wheel 20 to rotate, thereby driving the connecting shaft 19 to rotate. For the provided indirect feeding component, the rotating disk 22 on the indirect feeding component rotates continuously, and under the action of the extrusion rod 23, it drives the blocking and falling plate 25 to move back and forth continuously. The polyester chips in the feed hopper 2 will be fed intermittently. Through intermittent feeding, the problem of excessive feeding at one time, which is not convenient for screening, is avoided, and it is easy to use.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can 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 invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for screening polyester chips, comprising a chip screening box (1), characterized in that: The slice screening box (1) is provided with a feed hopper (2), a screening mesh plate (3) is rotatably mounted on the inner wall of one side of the slice screening box (1), a screening collection assembly is provided on the inner wall of the bottom side of the slice screening box (1), an air suction hole (9) is opened on the inner wall of one side of the slice screening box (1), a double-axis motor (10) is mounted on the air suction hole (9), both output ends of the double-axis motor (10) are connected to a rotating shaft (11), one rotating shaft (11) is provided with an air suction assembly, and the slice screening box (1) is provided with a screen mesh plate (3) on the inner wall of one side of the slice screening box (1). A rotating shaft (14) is rotatably mounted, a knocking block (18) is fixedly mounted on the rotating shaft (14), the knocking block (18) is matched with the screen mesh plate (3), a conveying assembly is arranged between the rotating shaft (14) and the rotating shaft (11) for connection, a connecting shaft (19) is rotatably mounted on the top side of the slice screening box (1), a driving assembly is arranged between the connecting shaft (19) and the rotating shaft (14) for connection, an indirect material discharge assembly is connected to the connecting shaft (19), and the indirect material discharge assembly is connected to the feed hopper (2).

2. The device for screening polyester chips according to claim 1, characterized in that: The screening and collecting assembly comprises a first collecting frame (5) and a second collecting frame (6) mounted on the inner wall of the bottom side of a slice screening box (1); the first collecting frame (5) is located below the screening mesh plate (3); the second collecting frame (6) is located on one side of the screening mesh plate (3); a removal door plate (7) is provided on one side of the slice screening box (1); an inclined baffle (8) is mounted on one inner wall of the slice screening box (1); the inclined baffle (8) is located on one side of the first collecting frame (5); a bottom support block (4) is fixedly mounted on one inner wall of the slice screening box (1); and the screening mesh plate (3) is placed on the bottom support block (4).

3. The device for screening polyester chips according to claim 1, characterized in that: The air suction assembly comprises a plurality of air suction fan blades (12) mounted on a rotating shaft (11); a filter box (13) is mounted on one side of the slice screening box (1); and the filter box (13) is located on one side of the air suction hole (9).

4. The device for screening polyester chips according to claim 1, characterized in that: The conveying assembly comprises a first rotating wheel (15) fixedly sleeved on a rotating shaft (11), a second rotating wheel (16) fixedly sleeved on the rotating shaft (14), and rotating belts (17) movably sleeved on the first rotating wheel (15) and the second rotating wheel (16).

5. The device for screening polyester chips according to claim 1, characterized in that: The driving assembly comprises a driving wheel (20) fixedly sleeved on the rotating shaft (14) and the connecting shaft (19), and the same driving belt (21) is sleeved on the two driving wheels (20).

6. The device for screening polyester chips according to claim 1, characterized in that: The indirect material discharge assembly comprises a rotating disk (22) fixedly mounted on one end of a connecting shaft (19); an extrusion rod (23) is rotatably mounted on one side of the rotating disk (22); a connecting rod (24) is rotatably mounted on one end of the extrusion rod (23); a blocking plate (25) is fixedly mounted on one end of the connecting rod (24); a blocking hole (26) is opened on one side of the feed hopper (2); and the blocking plate (25) is movably mounted in the blocking hole (26).

7. The device for screening polyester chips according to claim 6, characterized in that: A guide block (27) is fixedly mounted on the top side of the slice screening box (1), and one end of the connecting rod (24) movably passes through the guide block (27).

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