Particle screening device for polytetrafluoroethylene raw material production

Abstract

The utility model discloses a polytetrafluoroethylene raw material production particle screening device which comprises a base, a feeding assembly, a storage bin, a first screening assembly and a second screening assembly, the storage bin is arranged on the base through a support, and the first screening assembly and the second screening assembly are both arranged on the base. The feeding assembly transports polytetrafluoroethylene raw materials to be screened into the storage bin, and the raw materials in the storage bin sequentially pass through the first screening assembly and the second screening assembly to achieve particle screening. When the polytetrafluoroethylene raw materials enter the surface of the second screen mesh along with the first discharging port, non-conforming impurities can enter the second discharging port through the flat plate layer, and meanwhile, the connecting arm drives the second screen mesh to vibrate, so that the conforming polytetrafluoroethylene raw materials enter the third discharging port to be collected, the impurities and the non-conforming materials enter the fourth discharging port, and through multi-layer screening, the quality of the polytetrafluoroethylene raw materials is improved. The purity of the polytetrafluoroethylene raw material can be improved, so that the quality of subsequent polytetrafluoroethylene production is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of polytetrafluoroethylene raw material production particle screening devices. BACKGROUND

[0002] Polytetrafluoroethylene, referred to as PTFE, also known as "teflon" or "plastic king", is a high molecular polymer polymerized by tetrafluoroethylene monomer, and polytetrafluoroethylene is widely used in industry and daily life due to its excellent performance, and is an important material indispensable in modern material science.

[0003] The raw material of polytetrafluoroethylene contains some impurities in the powder particles after production, which will affect the quality of polytetrafluoroethylene after formation if directly manufactured. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of polytetrafluoroethylene raw material production particle screening devices to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of polytetrafluoroethylene raw material production particle screening devices, including base, feeding assembly, storage bin, first screening assembly and second screening assembly, the storage bin is set on base by support, the first screening assembly and second screening assembly are all set on base, the feeding assembly transports the polytetrafluoroethylene raw material to be screened into storage bin, the raw material in the storage bin sequentially passes through first screening assembly and second screening assembly, realizes particle screening.

[0006] Preferably, the first screening assembly includes a first support frame disposed on the upper surface of the base, the first support frame, a first collection plate is disposed obliquely in the first support frame, and a first screen and a first flat plate are disposed on the upper surface of the first support frame.

[0007] Preferably, the first collection plate is provided with a first discharge port on the side facing the second screening assembly, and the first flat plate is communicated with a second discharge port.

[0008] Preferably, the second screening assembly includes a second support frame disposed on the upper surface of the base, a second collection plate is disposed obliquely in the second support frame, and a second screen and a second flat plate are disposed on the upper surface of the second support frame.

[0009] Preferably, the second collection plate is provided with a third discharge port on one side, and the second flat plate is communicated with a fourth discharge port.

[0010] Preferably, the feeding assembly includes a support plate disposed on the base, an inclined transmission belt is disposed on the support plate, and a baffle is disposed on the surface of the transmission belt.

[0011] Preferably, it further comprises two vibration assemblies, the vibration assembly comprises a first fixed block and a second fixed block arranged on the base, the upper surface of the first fixed block is provided with a motor, the motor power output end is connected with a rotating shaft, the upper surface of the second fixed block is provided with a bearing seat, the end of the rotating shaft away from the motor is connected with the bearing seat, and the rotating shaft is connected with the first screen and the second screen through the connecting arms.

[0012] The technical effect and advantages of the polytetrafluoroethylene raw material production particle screening device are as follows: the polytetrafluoroethylene raw material to be screened is transported to the storage bin through the conveying belt, the polytetrafluoroethylene raw material in the storage bin enters the surface of the first screen along the discharging track, the motor is started, the rotating shaft is driven to rotate by the motor, the first screen is vibrated by the connecting arm, the polytetrafluoroethylene raw material on the first screen is screened, the material preliminarily meeting the requirements falls into the first collecting plate, and the impurities not meeting the requirements enter the second discharging opening along the flat plate layer, meanwhile, the second screen is vibrated by the connecting arm, the polytetrafluoroethylene raw material meeting the requirements is collected into the third discharging opening, and the impurities and the material not meeting the requirements enter the fourth discharging opening, so that the purity of the polytetrafluoroethylene raw material is improved, and the quality of subsequent polytetrafluoroethylene production is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a structure schematic view of the discharging track of the utility model;

[0015] Figure 3 It is a structure schematic view of the vibration assembly of the utility model;

[0016] Figure 4 It is a structure schematic view of the second screen of the utility model.

[0017] In the figure: 1, base; 2, storage bin; 3, first support frame; 4, first collecting plate; 5, first screen; 6, first discharging opening; 7, second discharging opening; 8, second support frame; 9, second collecting plate; 10, second screen; 11, third discharging opening; 12, fourth discharging opening; 13, support plate; 14, conveying belt; 15, baffle; 16, first fixed block; 17, second fixed block; 18, motor; 19, rotating shaft; 20, bearing seat; 21, discharging track. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0019] To improve screening efficiency, refer to Figure 1 , Figure 2 and Figure 3 As shown, the system includes a base 1, a feeding assembly, a storage silo 2, a first screening assembly, and a second screening assembly. The storage silo 2 is mounted on the base 1 via a support frame. Both the first and second screening assemblies are mounted on the base 1. The feeding assembly transports the polytetrafluoroethylene (PTFE) raw material to be screened into the storage silo 2. The raw material in the storage silo 2 passes sequentially through the first and second screening assemblies to achieve particle screening. The PTFE raw material to be screened is transported to the storage silo 2 via a conveyor belt 14. The PTFE raw material in the storage silo 2 enters the surface of the first screen 5 along the feeding track 21, and then... The motor 18 drives the rotating shaft 19 to rotate, which in turn drives the first screen 5 to vibrate through the connecting arm. This screens the polytetrafluoroethylene (PTFE) raw materials on the first screen 5. The materials that initially meet the requirements fall into the first receiving plate 4 and enter the surface of the second screen 10 through the first discharge port 6. Impurities that do not meet the requirements will enter the second discharge port 7 through the flat plate layer. At the same time, the connecting arm drives the second screen 10 to vibrate, so that the PTFE raw materials that meet the requirements enter the third discharge port 11 and are collected. Impurities and materials that do not meet the requirements enter the fourth discharge port 12. Through multi-layer screening, the overall quality of the PTFE raw materials is improved.

[0020] To improve screening accuracy, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the first screening component includes a first support frame 3 disposed on the upper surface of the base 1. The first support frame 3 has a first receiving plate 4 disposed inclinedly inside it, and the upper surface of the first support frame 3 is provided with a first screen 5 and a first plate. Polytetrafluoroethylene raw materials that meet the standards will enter the first receiving plate 4 after being screened by the first screen 5. Raw materials that do not meet the standards will move to the surface of the first plate through vibration and then enter the second receiving port. The first receiving plate 4 has a first discharge port 6 on the side facing the second screening component, and the first plate is connected to the second discharge port 7. The second screening component includes a second support frame 8 disposed on the upper surface of the base 1. A second receiving plate 9 is inclinedly disposed inside the second support frame 8, and a second screen 10 and a second plate are disposed on the upper surface of the second support frame 8. The polytetrafluoroethylene raw material transmitted by the first discharge port 6 will fall directly onto the surface of the second screen 10. A portion of the polytetrafluoroethylene raw material that meets the screening standards will fall onto the second receiving plate 9 and enter the third discharge port 11, where it will be collected by the staff. Materials that do not meet the standards will be moved from the surface of the second screen 10 to the surface of the second plate through vibration, and then enter the fourth discharge port 12. The second receiving plate 9 has a third discharge port 11 on one side, and the second plate is connected to the fourth discharge port 12. The feeding assembly includes a support plate 13 disposed on the base 1, a conveyor belt 14 disposed at an inclination on the support plate 13, and a baffle 15 disposed on the surface of the conveyor belt 14. The baffle 15 can intercept the raw materials to be screened so that they can be conveyed to the storage bin 2 by the conveyor belt 14. The conveyor belt 14 is existing technology, and its specific function is to realize the conveying function.

[0021] Furthermore, it also includes two vibration components. The vibration components include a first fixing block 16 and a second fixing block 17 disposed on the base 1. A motor 18 is disposed on the upper surface of the first fixing block 16. The power output end of the motor 18 is connected to a rotating shaft 19. A bearing seat 20 is disposed on the upper surface of the second fixing block 17. The end of the rotating shaft 19 away from the motor 18 is connected to the bearing seat 20. The rotating shaft 19 is connected to the first screen 5 and the second screen 10 respectively through connecting arms. The first fixing block 16, the second fixing block 17, the motor 18, the bearing seat 20, the rotating shaft 19, and the connecting arms are all configured in two sets. As the two connecting arms are connected to the first screen 5 and the second screen 10 respectively, as the motor 18 drives the rotating shaft 19 to rotate, the rotating shaft 19 will drive the connecting arms to swing up and down to a certain extent, thereby driving the vibration of the first screen 5 and the second screen 10 to achieve the screening function. A feeding track 21 is provided at the feeding port of the storage bin 2, and the feeding port of the feeding track 21 is located vertically above the first screen 5.

[0022] In use, the PTFE raw material to be screened is first transported to the storage bin 2 by the conveyor belt 14. The PTFE raw material in the storage bin 2 enters the surface of the first screen 5 along the feeding track 21. The motor 18 is started. After the motor 18 drives the rotating shaft 19 to rotate, the first screen 5 is vibrated through the connecting arm, and the PTFE raw material on the first screen 5 is screened. The material that initially meets the requirements falls into the first receiving plate 4 and enters the surface of the second screen 10 through the first discharge port 6. Impurities that do not meet the requirements will enter the second discharge port 7 through the flat plate layer. At the same time, the connecting arm drives the second screen 10 to vibrate, so that the PTFE raw material that meets the requirements enters the third discharge port 11 and is collected. Impurities and materials that do not meet the requirements enter the fourth discharge port 12.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model.

Claims

1. A particle screening device for producing polytetrafluoroethylene raw materials, characterized in that, Including base (1), feeding assembly, storage bin (2), first screening assembly and second screening assembly, the storage bin (2) is set on the base (1) by support, the first screening assembly and the second screening assembly are all set on the base (1), the feeding assembly transports the polytetrafluoroethylene raw material to be screened to the storage bin (2), the raw material in the storage bin (2) sequentially passes through the first screening assembly and the second screening assembly, realizes particle screening.

2. The polytetrafluoroethylene raw material production particle sieving apparatus according to claim 1, characterized by: The first screening assembly includes the first support frame (3) arranged on the upper surface of the base (1), the first support frame (3) is arranged with the first receiving plate (4) in the inclined manner, and the first support frame (3) is provided with the first screen (5) and the first flat plate on the upper surface.

3. The polytetrafluoroethylene raw material production particle sieving apparatus according to claim 2, characterized by: The first receiving plate (4) is provided with the first discharge port (6) on the side facing the second screening assembly, and the first flat plate is communicated with the second discharge port (7).

4. The polytetrafluoroethylene raw material production particle sieving apparatus according to claim 1, characterized by: The second screening assembly includes the second support frame (8) arranged on the upper surface of the base (1), the second support frame (8) is arranged with the second receiving plate (9) in the inclined manner, and the second support frame (8) is provided with the second screen (10) and the second flat plate on the upper surface.

5. The polytetrafluoroethylene raw material production particle sieving apparatus according to claim 4, characterized by: The second receiving plate (9) is provided with the third discharge port (11) on one side, and the second flat plate is communicated with the fourth discharge port (12).

6. The polytetrafluoroethylene raw material production particle sieving apparatus according to claim 1, characterized by: The feeding assembly includes the support plate (13) arranged on the base (1), the support plate (13) is arranged with the conveying belt (14) in the inclined manner, and the conveying belt (14) is provided with the baffle (15) on the surface.

7. The polytetrafluoroethylene raw material production particle sieving apparatus according to claim 6, characterized by: Further comprising two vibration assemblies, the vibration assembly includes the first fixed block (16) and the second fixed block (17) arranged on the base (1), the upper surface of the first fixed block (16) is provided with the motor (18), the power output end of the motor (18) is connected with the rotating shaft (19), the upper surface of the second fixed block (17) is provided with the bearing seat (20), the end of the rotating shaft (19) away from the motor (18) is connected with the bearing seat (20), and the rotating shaft (19) is connected with the first screen (5) and the second screen (10) through the connecting arm respectively.

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