Raw material multi-aperture screening device for polytetrafluoroethylene gasket production and use method of raw material multi-aperture screening device

Abstract

The invention discloses a raw material multi-aperture screening device for polytetrafluoroethylene gasket production and a using method thereof.The raw material multi-aperture screening device comprises a rack, a screening barrel is obliquely arranged on the rack through a reinforcing beam, a supporting frame is arranged at the end, facing a feeding port of the screening barrel, of the rack, and a feeding assembly is arranged at the top of the supporting frame; and a power unit used for driving the screening barrel and the feeding assembly is further arranged on the outer side of the supporting frame, a material collecting barrel is arranged in the rack and located vertically below the screening barrel, and the material collecting barrel moves to the positions below different discharging ports through a distance adjusting assembly, so that raw materials with different calibers are collected, and the raw materials with different calibers are conveyed to the screening barrel through the distance adjusting assembly. The first drum screen, the second drum screen and the third drum screen can screen out raw materials with different sizes through the screening holes with different calibers in the surfaces of the first drum screen, the second drum screen and the third drum screen, polytetrafluoroethylene gaskets with different contents can be manufactured according to the raw materials with different sizes, the structure is simple, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to a porous aperture screening device for raw materials in the production of polytetrafluoroethylene gaskets and a method for using the same. Background Art

[0002] Polytetrafluoroethylene is a synthetic polymer material with excellent properties, having many unique physical and chemical characteristics, and is widely used in various fields. Polytetrafluoroethylene gaskets are made by selecting polytetrafluoroethylene fine resin as the main raw material, crushing the PTFE fine resin and screening it.

[0003] Currently, when screening the raw materials for the production of polytetrafluoroethylene gaskets, the sieve cylinder has only one aperture, so only raw materials of the same particle size can be screened out, and the screening size cannot be changed according to the manufacturing process required for manufacturing polytetrafluoroethylene gaskets, which affects the use and reduces the practicability. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a porous aperture screening device for raw materials in the production of polytetrafluoroethylene gaskets and a method for using the same. With the rotation of the rotating shaft, the first pulley and the first gear can be driven to rotate simultaneously. Under the transmission of the transmission belt, the second pulley rotates, driving the rotating rod to rotate, and the spiral conveyor blade conveys the raw materials in the feed hopper to the discharge port and enters the screening cylinder for screening. The first gear drives the connecting rod to rotate through meshing with the second gear, and under the connection of the fixed rod, the first drum sieve, the second drum sieve, and the third drum sieve can be driven to rotate. The first drum sieve, the second drum sieve, and the third drum sieve can screen out raw materials of different sizes through the screening holes of different apertures on their surfaces. Different contents of polytetrafluoroethylene gaskets can be manufactured according to the raw materials of different sizes. The structure is simple and the working efficiency is effectively improved.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A porous aperture screening device for raw materials in the production of polytetrafluoroethylene gaskets, including a frame. The screening cylinder is inclined on the frame through a reinforcing beam. A support frame is provided at one end of the frame facing the inlet of the screening cylinder. A feeding assembly is provided at the top of the support frame. A power unit for driving the screening cylinder and the feeding assembly is also provided outside the support frame. Inside the frame and below the screening cylinder vertically, a receiving cylinder is provided. The receiving cylinder is moved to below different discharge ports through a distance adjustment assembly to collect raw materials of different apertures.

[0006] As a preferred technical solution of the present invention, two reinforcing beams are provided on the frame. The screening cylinder includes a first drum sieve, a second drum sieve, and a third drum sieve arranged between the two reinforcing beams. The first drum sieve, the second drum sieve, and the third drum sieve are inclined in sequence from the inlet.

[0007] As a preferred technical solution of the present invention, screening holes with different apertures are respectively formed on the surfaces of the first drum sieve, the second drum sieve, and the third drum sieve.

[0008] As a preferred technical solution of the present invention, the distance adjusting assembly includes a base arranged vertically below the frame. A screw rod and two sliding rods are arranged inside the base, and the two sliding rods are respectively arranged on both sides of the screw rod.

[0009] As a preferred technical solution of the present invention, the sliding rod is parallel to the screw rod. A moving seat is arranged on the screw rod and the sliding rod. Threaded holes and through holes adapted to the screw rod and the sliding rod are respectively formed inside the moving seat, and the material receiving cylinder is arranged on the upper surface of the moving seat.

[0010] As a preferred technical solution of the present invention, the feeding assembly includes a feeding hopper arranged at the inner top of the support frame. A rotating rod is arranged inside the feeding hopper, and a spiral conveyor blade is arranged around the outer side of the rotating rod. The feeding hopper extends into the screening cylinder, and a feeding port is formed on the lower surface of one end of the feeding hopper located inside the screening cylinder.

[0011] As a preferred technical solution of the present invention, the power unit includes a first motor arranged outside the support frame. The power output end of the first motor is connected to a rotating shaft. A first belt pulley is arranged on the rotating shaft and at one end outside the support frame. A transmission belt is sleeved outside the first belt pulley, and a second belt pulley is arranged at the other end of the transmission belt. The rotating rod extends outside the feeding hopper and is inserted into the second belt pulley.

[0012] As a preferred technical solution of the present invention, a first gear is arranged on the rotating shaft and at one end inside the support frame. A second gear is meshed outside the first gear, and a connecting rod is inserted into the second gear. The connecting rod is centrally arranged inside the screening cylinder.

[0013] As a preferred technical solution of the present invention, a plurality of mounting rings are equidistantly arranged at intervals around the outer side of the connecting rod. A fixing rod is arranged outside the mounting ring, and the fixing rod is connected to the inner wall of the screening cylinder.

[0014] The present invention also provides a technical solution, a usage method of a multi-aperture screening device for raw materials in the production of polytetrafluoroethylene gaskets. The specific steps are as follows: S1. First, pour the raw materials to be screened into the feeding hopper, start the first motor, the power output end of the first motor drives the rotating shaft to rotate, the rotating shaft drives the first belt pulley to rotate, and under the transmission of the transmission belt, the second belt pulley rotates; S2. The second pulley drives the rotating rod to rotate, causing the spiral conveyor blade to rotate, transferring the raw materials in the feeding hopper to the discharging opening, and entering the screening cylinder; S3. While the rotating shaft is rotating, it drives the first gear to rotate. Through the meshing of the first gear and the second gear, the second gear is driven to rotate. The second gear drives the connecting rod, and under the connection of the fixed rod, the first drum sieve, the second drum sieve, and the third drum sieve are driven to rotate; S4. Start the second motor. The power output end of the second motor drives the screw rod to rotate. Under the cooperation of the threaded hole, the moving seat converts the rotational motion into a linear motion, causing the moving seat to drive the collecting and receiving cylinder to move, so that it can respectively receive the raw materials screened by the first drum sieve, the second drum sieve, and the third drum sieve.

[0015] Compared with the prior art, the beneficial effects that the present invention can achieve are as follows: With the rotation of the rotating shaft, the first pulley and the first gear can be respectively driven to rotate simultaneously. Under the transmission of the transmission belt, the second pulley rotates, driving the rotating rod to rotate, enabling the spiral conveyor blade to transport the raw materials in the feeding hopper to the discharging opening and enter the screening cylinder for screening. The first gear drives the connecting rod to rotate through meshing with the second gear. Under the connection of the fixed rod, the first drum sieve, the second drum sieve, and the third drum sieve can be driven to rotate. The first drum sieve, the second drum sieve, and the third drum sieve can screen out raw materials of different sizes through the screening holes of different diameters on their surfaces. Different content polytetrafluoroethylene gaskets can be manufactured according to the raw materials of different sizes. The structure is simple, and the working efficiency is effectively improved. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the screening cylinder of the present invention; Figure 3 is the structural schematic diagram of the discharging opening of the present invention; Figure 4 is the structural schematic diagram of the distance adjusting assembly of the present invention; Figure 5 is the structural schematic diagram of the first gear of the present invention; Figure 6 is the structural schematic diagram of the spiral conveyor blade of the present invention; Figure 7 is the structural schematic diagram of the fixed rod of the present invention.

[0017] Wherein: 1. Frame; 2. Reinforcing beam; 3. Support frame; 4. Material receiving cylinder; 5. Discharge port; 6. First drum sieve; 7. Second drum sieve; 8. Third drum sieve; 9. Screening holes; 10. Base; 11. Screw; 12. Slide bar; 13. Moving seat; 14. Feeding hopper; 15. Rotating rod; 16. Screw conveyor blade; 17. Feeding port; 18. First motor; 19. Rotating shaft; 20. First pulley; 21. Transmission belt; 22. Second pulley; 23. First gear; 24. Second gear; 25. Connecting rod; 26. Mounting ring; 27. Fixed rod. Detailed implementation manners

[0018] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative labor all fall within the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0019] Embodiment: As Figure 1 - Figure 7 shown, this embodiment proposes a porous diameter screening device for raw materials in the production of polytetrafluoroethylene gaskets, including a frame 1. The screening cylinder is obliquely arranged on the frame 1 through a reinforcing beam 2. A support frame 3 is arranged at one end of the frame 1 facing the feeding port of the screening cylinder. A feeding assembly is arranged at the top of the support frame 3. A power unit for driving the screening cylinder and the feeding assembly is also arranged outside the support frame 3. Inside the frame 1 and directly below the screening cylinder, a material receiving cylinder 4 is arranged. The material receiving cylinder 4 is moved to below different discharge ports 5 through a distance adjustment assembly to realize the collection of raw materials with different diameters. As the rotating shaft 19 rotates, it can drive the rotation of the first pulley 20 and the first gear 23 respectively and simultaneously. Under the transmission of the transmission belt 21, the second pulley 22 rotates, driving the rotating rod 15 to rotate, so that the screw conveyor blade 16 conveys the raw materials in the feeding hopper 14 to the feeding port 17 and enters the screening cylinder for screening. The first gear 23 drives the connecting rod 25 to rotate through meshing with the second gear 24. Under the connection of the fixed rod 27, the first drum sieve 6, the second drum sieve 7 and the third drum sieve 8 can be driven to rotate. The first drum sieve 6, the second drum sieve 7 and the third drum sieve 8 can screen out raw materials of different sizes through the screening holes 9 with different diameters on their surfaces. Different content polytetrafluoroethylene gaskets can be manufactured according to the raw materials of different sizes, and the structure is simple. Among them, two reinforcing beams 2 are arranged on the frame 1, and a bearing seat adapted to the connecting rod 25 is arranged on the reinforcing beam 2 on the side far from the support frame 3. When the second gear 24 drives the connecting rod 25, it rotates in cooperation with the bearing seat. The screening cylinder includes a first drum sieve 6, a second drum sieve 7 and a third drum sieve 8 arranged between the two reinforcing beams 2. The first drum sieve 6, the second drum sieve 7 and the third drum sieve 8 are sequentially inclined from the feeding port, and the inclined arrangement facilitates the raw materials in the first drum sieve 6 to enter the second drum sieve 7 and the third drum sieve 8 in sequence. Screening holes 9 with different diameters are respectively formed on the surfaces of the first drum sieve 6, the second drum sieve 7 and the third drum sieve 8. Different sizes of raw materials can be screened out through the different screening holes 9. A downward discharge port 5 is formed directly below the first drum sieve 6 and the third drum sieve 8 on the frame 1, and parallel discharge ports 5 are arranged at the ends of the second drum sieve 7 and the third drum sieve 8, so that materials of different sizes can be discharged through different discharge ports 5. The distance adjustment component includes a base 10 arranged directly below the frame 1. A screw rod 11 and two slide rods 12 are arranged in the base 10. The two slide rods 12 are respectively arranged on both sides of the screw rod 11. The slide rods 12 are parallel to the screw rod 11. A moving seat 13 is arranged on the screw rod 11 and the slide rods 12. Threaded holes and through holes adapted to the screw rod 11 and the slide rods 12 are respectively formed in the moving seat 13. The material receiving cylinder 4 is arranged on the upper surface of the moving seat 13. A second motor (not shown in the figure) is arranged outside the base 10. The power output end of the second motor drives the screw rod 11 to rotate. Under the cooperation of the threaded hole and the through hole, the moving seat 13 can convert the rotational motion into a linear motion, so that the moving seat 13 slides along the length direction of the slide rod 12, and then drives the movement of the material receiving cylinder 4, and the material receiving cylinder 4 can be moved from the discharge port 5 of the first drum sieve 6 to the discharge port 5 of the third drum sieve 8, avoiding the difficulty of manually collecting the raw materials under the frame 1 and improving the convenience.

[0020] Further, the feeding component includes a feeding hopper 14 arranged at the inner top of the support frame 3. A rotating rod 15 is arranged in the feeding hopper 14. A spiral conveyor blade 16 is arranged around the outer side of the rotating rod 15. The feeding hopper 14 extends into the screening cylinder, and a feeding port 17 is formed in the lower surface of one end of the feeding hopper 14 located in the screening cylinder. After the rotating rod 15 rotates, it drives the spiral conveyor blade 16 to rotate, gradually moving the raw materials in the feeding hopper 14 towards the feeding port 17, allowing the raw materials to enter the screening cylinder. Moreover, the rotating rod 15 and the screening cylinder rotate simultaneously, enabling screening while adding raw materials, thus improving work efficiency. The power unit includes a first motor 18 arranged outside the support frame 3. The power output end of the first motor 18 is connected to a rotating shaft 19. A first pulley 20 is arranged on the rotating shaft 19 at one end outside the support frame 3. A transmission belt 21 is sleeved outside the first pulley 20. The other end of the transmission belt 21 is provided with a second pulley 22. The rotating rod 15 extends outside the feeding hopper 14 and is inserted into the second pulley 22. After the power output end of the first motor 18 drives the rotating shaft 19 to rotate, it drives the rotation of the first pulley 20. Under the transmission of the transmission belt 21, the second pulley 22 rotates, and then drives the rotation of the rotating rod 15. A first gear 23 is arranged on the rotating shaft 19 at one end inside the support frame 3. A second gear 24 meshes with the outside of the first gear 23. A connecting rod 25 is inserted into the second gear 24. The connecting rod 25 is centrally arranged in the screening cylinder. A plurality of mounting rings 26 are equidistantly arranged at equal intervals around the outer side of the connecting rod 25. A fixing rod 27 is arranged on the outside of the mounting ring 26. The fixing rod 27 is connected to the inner wall of the screening cylinder. When the rotating shaft 19 rotates, it drives the first gear 23 to rotate. Through the meshing of the first gear 23 and the second gear 24, the second gear 24 is driven to rotate, and then the connecting rod 25 is driven to rotate, realizing the rotation of the first drum screen 6, the second drum screen 7, and the third drum screen 8, thereby screening the raw materials.

[0021] A method for using a multi-aperture screening device for raw materials in the production of polytetrafluoroethylene gaskets is as follows: S1. First, pour the raw materials to be screened into the feeding hopper 14, start the first motor 18, and the power output end of the first motor 18 drives the rotating shaft 19 to rotate. The rotating shaft 19 drives the first pulley 20 to rotate, and under the transmission of the transmission belt 21, the second pulley 22 rotates; S2. The second pulley 22 drives the rotating rod 15 to rotate, causing the spiral conveyor blade 16 to rotate, transporting the raw materials in the feeding hopper 14 to the feeding port 17 and entering the screening cylinder; S3. While rotating with the rotating shaft 19, the first gear 23 is driven to rotate. Through the meshing of the first gear 23 and the second gear 24, the second gear 24 is driven to rotate. The second gear 24 drives the connecting rod 25, and under the connection of the fixed rod 27, the first drum sieve 6, the second drum sieve 7, and the third drum sieve 8 are driven to rotate. S4. Start the second motor. The power output end of the second motor drives the screw rod 11 to rotate. With the cooperation of the threaded hole, the moving seat 13 converts the rotational motion into a linear motion, so that the moving seat 13 drives the collecting and receiving cylinder 4 to move, so as to respectively receive the raw materials screened by the first drum sieve 6, the second drum sieve 7, and the third drum sieve 8.

[0022] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the case where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0023] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material multi-aperture screening device for the production of polytetrafluoroethylene gaskets, characterized in that, It includes a frame (1). The screening cylinder is inclinedly arranged on the frame (1) through a reinforcing beam (2). A support frame (3) is arranged at one end of the frame (1) towards the feed inlet of the screening cylinder. A feeding assembly is arranged at the top of the support frame (3). A power unit for driving the screening cylinder and the feeding assembly is also arranged outside the support frame (3). Inside the frame (1) and vertically below the screening cylinder, a material receiving cylinder (4) is arranged. The material receiving cylinder (4) is moved to below different discharge ports (5) through a distance adjusting assembly to collect raw materials with different diameters.

2. The raw material multi-aperture screening device for the production of polytetrafluoroethylene gaskets according to claim 1, characterized in that: There are two reinforcing beams (2) arranged on the frame (1). The screening cylinder includes a first drum screen (6), a second drum screen (7) and a third drum screen (8) arranged between the two reinforcing beams (2). The first drum screen (6), the second drum screen (7) and the third drum screen (8) are sequentially inclinedly arranged from the feed inlet.

3. The raw material multi-aperture screening device for the production of polytetrafluoroethylene gaskets according to claim 2, wherein: Screening holes (9) with different diameters are respectively formed on the surfaces of the first drum screen (6), the second drum screen (7) and the third drum screen (8).

4. The raw material multi-aperture screening device for the production of polytetrafluoroethylene gaskets according to claim 1, wherein: The distance adjusting assembly includes a base (10) arranged vertically below the frame (1). A screw rod (11) and two slide rods (12) are arranged inside the base (10). The two slide rods (12) are respectively arranged on both sides of the screw rod (11).

5. The raw material multi-aperture screening device for the production of polytetrafluoroethylene gaskets according to claim 1, wherein: The slide rods (12) are parallel to the screw rod (11). A moving seat (13) is arranged on the screw rod (11) and the slide rods (12). Threaded holes and through holes adapted to the screw rod (11) and the slide rods (12) are respectively formed inside the moving seat (13). The material receiving cylinder (4) is arranged on the upper surface of the moving seat (13).

6. The multi-aperture screening device for raw materials in the production of polytetrafluoroethylene gaskets according to claim 1, characterized in that: The feeding assembly includes a feeding hopper (14) arranged at the inner top of the support frame (3). A rotating rod (15) is arranged inside the feeding hopper (14). A spiral conveyor blade (16) is arranged around the outer side of the rotating rod (15). The feeding hopper (14) extends into the screening cylinder, and a feeding port (17) is formed on the lower surface of the end of the feeding hopper (14) located inside the screening cylinder.

7. The raw material multi-aperture screening device for the production of polytetrafluoroethylene gaskets according to claim 6, characterized in that: The power unit includes a first motor (18) arranged outside the support frame (3). A rotating shaft (19) is connected to the power output end of the first motor (18). A first pulley (20) is arranged at one end of the rotating shaft (19) outside the support frame (3). A transmission belt (21) is sleeved outside the first pulley (20). The other end of the transmission belt (21) is provided with a second pulley (22). The rotating rod (15) extends outside the feeding hopper (14) and is inserted into the second pulley (22).

8. The multi-aperture screening device for raw materials in the production of polytetrafluoroethylene gaskets according to claim 7, characterized in that: A first gear (23) is arranged at one end of the rotating shaft (19) inside the support frame (3). A second gear (24) is meshed outside the first gear (23). A connecting rod (25) is inserted into the second gear (24). The connecting rod (25) is centrally arranged inside the screening cylinder.

9. The raw material multi-aperture screening device for the production of polytetrafluoroethylene gaskets according to claim 8, characterized in that: A plurality of mounting rings (26) are equidistantly arranged at intervals around the outer side of the connecting rod (25). A fixing rod (27) is arranged on the outer side of the mounting ring (26), and the fixing rod (27) is connected to the inner wall of the screening cylinder.

10. A method for using a raw material multi-aperture screening device for the production of polytetrafluoroethylene gaskets, characterized in that: Applied to the multi-aperture screening device for the raw materials used in the production of the polytetrafluoroethylene gasket according to any one of claims 1-9, S1. First, pour the raw materials to be screened into the feeding hopper (14), start the first motor (18), the power output end of the first motor (18) drives the rotating shaft (19) to rotate, the rotating shaft (19) drives the first pulley (20) to rotate, and under the transmission of the transmission belt (21), the second pulley (22) is driven to rotate; S2. The second pulley (22) drives the rotating rod (15) to rotate, so that the spiral conveying blade (16) rotates, and conveys the raw materials in the feeding hopper (14) to the discharge port (17) and enters the screening cylinder; S3. While the rotating shaft (19) rotates, the first gear (23) is driven to rotate. Through the meshing of the first gear (23) and the second gear (24), the second gear (24) is driven to rotate. The second gear (24) drives the connecting rod (25), and under the connection of the fixing rod (27), the first drum sieve (6), the second drum sieve (7) and the third drum sieve (8) are driven to rotate; S4. Start the second motor, the power output end of the second motor drives the screw rod (11) to rotate. Under the cooperation of the threaded hole, the moving seat (13) converts the rotational motion into a linear motion, so that the moving seat (13) drives the collecting and receiving cylinder (4) to move, so as to respectively receive the raw materials screened by the first drum sieve (6), the second drum sieve (7) and the third drum sieve (8).

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