Pre-drafting device for ultra-high molecular weight polyethylene fiber production

Abstract

The utility model provides a pre-drafting device for ultra-high molecular weight polyethylene fiber production, and relates to the technical field of ultra-high molecular weight polyethylene fiber production equipment.The pre-drafting device comprises a machine body, a plurality of motors are arranged on one side of the machine body, and a filtering device is arranged on one side of an air inlet device. The drafting device is characterized in that a circular pipe is arranged on one side of the air inlet device, a filter plate is fixedly connected to the interior of the circular pipe, a filter screen and adsorption cotton are arranged on the two sides of the filter plate respectively, and groove blocks are fixedly connected to the upper side and the lower side of the outer surface of an air inlet pipe of the air inlet device respectively. When air is sucked through an air blower in the air inlet device, the air passes through a filter plate in a round pipe, dust is filtered through a filter screen on the outer side of the filter plate and filter cotton on the inner side of the filter plate, small particles are adsorbed, and the situation that the air blower sucks the air with impurities into the machine body, and the fiber quality is affected is avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-high molecular weight polyethylene fiber production equipment, in particular to a pre-drafting device for ultra-high molecular weight polyethylene fiber production. Background Art

[0002] Ultra-high molecular weight polyethylene fiber is a polymer material with excellent properties. It is currently the fiber with the highest specific strength and specific modulus in the world. During the production process, the pre-stretching device is a device that gradually straightens the bent fibers in the ultra-high molecular weight polyethylene fiber and gradually eliminates the hooks.

[0003] Prior art includes a utility model with publication number CN208685114U, which discloses a pre-stretching device for the production of ultra-high molecular weight polyethylene fibers. The patent adopts a method of adding a blower to the polyethylene fiber production process, and blowing the heat of the electric heating wire to the fiber surface through the blower on one side of the stretching roller, so as to solve the problem that the existing ultra-high molecular weight polyethylene fibers are stretched at room temperature, resulting in poor stretching effect of the ultra-high molecular weight polyethylene fibers, requiring repeated operations and low work efficiency.

[0004] The inventor discovered in his daily work that when using a stretching device, although the debris inside the device can be sucked out by the negative pressure fan at the top of the stretching device, when the blower blows air through the electric heating wire to heat the fibers inside the stretching device, impurities in the air will be brought into the interior of the stretching device. During the stretching process, impurities in the air are squeezed by the stretching rollers and combined with the surface of the fiber filaments, thereby affecting the quality of the fibers. Utility Model Content

[0005] The utility model aims to solve the problem that when a blower blows air through an electric heating wire to heat the fibers inside the drawing device, impurities in the air are brought into the interior of the drawing device, and during the drawing process, impurities in the air are squeezed by a drawing roller and combined with the surface of the fiber filaments, thereby affecting the quality of the fibers. A pre-drawing device for producing ultra-high molecular weight polyethylene fibers is proposed to solve the problem that when a blower blows air through an electric heating wire to heat the fibers inside the drawing device, impurities in the air are brought into the interior of the drawing device, and impurities in the air are squeezed by a drawing roller and combined with the surface of the fiber filaments, thereby affecting the quality of the fibers.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pre-stretching device, including a machine body, a feed port is provided at one end of the machine body, a plurality of motors are provided on one side of the machine body, an exhaust device is provided at the top of the machine body, an air inlet device is provided on one side of the machine body, a filter device is provided on one side of the air inlet device, the filter device includes a circular tube, two rectangular blocks are fixedly connected to one side of the circular tube, a filter plate is fixedly connected to the inside of the circular tube, a filter net and adsorption cotton are respectively provided on both sides of the filter plate, and slot blocks are fixedly connected to the upper and lower sides of the outer surface of the air inlet pipe of the air inlet device, and a slot is provided on one side of the slot block.

[0007] The effect achieved by the above-mentioned components is: by setting the filter plate, when using the drafting device, the two rectangular blocks at one end of the round tube can be first inserted into the slots of the two groove blocks on the outer surface of the air inlet pipe of the air inlet device, and the round tube can be pushed so that the rectangular block is completely inside the groove block and the round tube is fixed to one side of the air inlet device. When the air is sucked in by the blower inside the air inlet device, the air will pass through the filter plate inside the round tube, and the dust in the air will be filtered through the filter net on the outside of the filter plate, and the tiny particles will be adsorbed by the filter cotton on the inside of the filter plate, so as to avoid the blower from sucking air with impurities into the interior of the machine body to affect the fiber quality.

[0008] Preferably, through holes are respectively provided on the outer surfaces of the slot block and the rectangular block, positioning rods are respectively fixedly connected to the upper and lower sides of the circular tube, and the outer surfaces of the positioning rods are threadedly connected to positioning blocks.

[0009] The effect achieved by the above-mentioned components is: after the rectangular block is inserted into the interior of the slot, the positioning block on the outer surface of the positioning rod can be rotated so that the positioning block moves toward the rectangular block on the outer surface of the positioning rod and passes through the through holes on the outer surfaces of the rectangular block and the slot block to enter the interior of the rectangular block, thereby further fixing the relative position between the rectangular block and the slot block, and the position of the round tube on the outside of the air inlet device.

[0010] Preferably, a plurality of protrusions are fixedly connected to the top of the positioning block, and the protrusions are distributed in a circle on the outer surface of the positioning block.

[0011] The effect achieved by the above components is that the positioning block can be pushed more conveniently by pressing the convex block on the outer surface of the positioning block with the hand to control the rotation of the positioning block.

[0012] Preferably, one end of the circular tube is fixedly connected to two baffles, and the two baffles are made of rubber material.

[0013] The effect achieved by the above components is: when the round tube is fixed on the outside of the air inlet pipe of the air inlet device, the two baffles will be respectively located outside the contact between the round tube and the air inlet pipe, further sealing the contact between the round tube and the air inlet pipe and improving the sealing effect.

[0014] Preferably, anti-slip sheets are fixedly connected to both sides of the circular tube, and a plurality of protrusions are provided on one side of the anti-slip sheet.

[0015] The effect achieved by the above components is that the round tube can be more conveniently taken by pinching the protrusions of the anti-slip sheets on both sides of the round tube, and the rectangular block can be inserted into the groove block or pulled out from the groove block to disassemble and assemble the round tube.

[0016] Preferably, an auxiliary device is provided on one side of the circular tube, and the auxiliary device includes a circular disc, one side of the circular disc is fixedly connected with two clamping blocks, and one end of the circular tube is provided with two clamping grooves, and the size and shape of the outer surface of the clamping block are adapted to the size and shape of the inner wall of the clamping groove.

[0017] The effect achieved by the above components is: when the machine body is not in use, the two blocks on one side of the disc can be inserted into the two slots on one side of the round tube to close one end of the round tube, thereby avoiding dust accumulation inside the round tube to affect the filtering effect of the filtering device as much as possible.

[0018] Preferably, an auxiliary block is fixedly connected to one side of the disc, and grooves are formed on two sides of the auxiliary block.

[0019] The effect achieved by the above components is that pinching the grooves on both sides of the auxiliary block can more conveniently control the disc to insert or pull out the two card blocks on one side of the disc into the card slot.

[0020] Preferably, one side of the disc is fixedly connected with an elastic rope, and one end of the elastic rope away from the disc is fixedly connected to one side of the circular tube.

[0021] The effect achieved by the above components is that when the disc is removed from one side of the round tube, the disc can be fixed to the outer side of the round tube through the elastic rope, so that it is easy to take out and use.

[0022] Compared with the prior art, the advantages and positive effects of the utility model are:

[0023] In the utility model, by setting a filtering device, when using the stretching device, the round tube can be first fixed on one side of the air inlet device. When the air is sucked in by the blower inside the air inlet device, the air will pass through the filter plate inside the round tube, and the dust will be filtered and tiny particles will be adsorbed by the filter net on the outside of the filter plate and the filter cotton on the inside, so as to avoid the blower from sucking air with impurities into the interior of the machine body to affect the fiber quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the body of the utility model;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the air inlet device of the utility model;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the circular tube of the utility model.

[0028] Legend: 1. Machine body; 2. Filter device; 3. Auxiliary device; 4. Feed port; 5. Motor; 6. Exhaust device; 7. Air inlet device; 21. Slot block; 22. Slot; 23. Round tube; 24. Rectangular block; 25. Filter plate; 26. Positioning rod; 27. Positioning block; 28. Bump; 29. ​​Baffle; 210. Anti-slip sheet; 31. Slot; 32. Disc; 33. Block; 34. Elastic rope; 35. Auxiliary block. DETAILED DESCRIPTION

[0029] Embodiment 1, as Figure 1-4 As shown, a pre-drafting device for producing ultra-high molecular weight polyethylene fiber comprises a machine body 1, a feed port 4 is arranged at one end of the machine body 1, a plurality of motors 5 are arranged at one side of the machine body 1, an exhaust device 6 is arranged at the top of the machine body 1, an air inlet device 7 is arranged at one side of the machine body 1, a filter device 2 is arranged at one side of the air inlet device 7, the filter device 2 comprises a round tube 23, two rectangular blocks 24 are fixedly connected to one side of the round tube 23, a filter plate 25 is fixedly connected inside the round tube 23, a filter screen and an adsorption cotton are respectively arranged at both sides of the filter plate 25, a slot block 21 is fixedly connected to the upper and lower sides of the outer surface of the air inlet pipe of the air inlet device 7, a slot 22 is opened at one side of the slot block 21, and a filter screen and an adsorption cotton are respectively arranged at both sides of the filter plate 25. By setting the filter plate 25, when using the drafting device, the two rectangular blocks 24 at one end of the round tube 23 can be first inserted into the slots 22 of the two slot blocks 21 on the outer surface of the air inlet pipe of the air inlet device 7, and the round tube 23 can be pushed so that the rectangular block 24 is completely inside the slot block 21, and the round tube 23 is fixed to one side of the air inlet device 7. When the air is sucked in by the blower inside the air inlet device 7, the air will pass through the filter plate 25 inside the round tube 23, and the dust in the air will be filtered by the filter net outside the filter plate 25, and the tiny particles will be adsorbed by the filter cotton inside the filter plate 25, so as to avoid the blower from sucking air with impurities into the interior of the body 1 to affect the fiber quality.

[0030] Reference Figure 2-4 As shown, in this embodiment: the outer surfaces of the slot block 21 and the rectangular block 24 are respectively provided with through holes, and the upper and lower sides of the circular tube 23 are respectively fixedly connected with positioning rods 26, and the outer surface of the positioning rod 26 is threadedly connected with a positioning block 27. After the rectangular block 24 is inserted into the interior of the slot 22, the positioning block 27 on the outer surface of the positioning rod 26 can be rotated so that the positioning block 27 moves toward the direction of the rectangular block 24 on the outer surface of the positioning rod 26 and passes through the through holes on the outer surfaces of the rectangular block 24 and the slot block 21 to enter the interior of the rectangular block 24, and the relative position between the rectangular block 24 and the slot block 21 and the position of the circular tube 23 on the outside of the air inlet device 7 are further fixed. A plurality of protrusions 28 are fixedly connected to the top of the positioning block 27, and the protrusions 28 are distributed in a circle on the outer surface of the positioning block 27. By pressing the protrusions 28 on the outer surface of the positioning block 27 with your hand, it is more convenient to push the positioning block 27 to control the rotation of the positioning block 27.

[0031] Reference Figure 2-4 As shown, in the present embodiment: one end of the circular tube 23 is fixedly connected with two baffles 29, and the two baffles 29 are made of rubber material. When the circular tube 23 is fixed to the outside of the air inlet pipe of the air inlet device 7, the two baffles 29 will be respectively located on the outside of the contact between the circular tube 23 and the air inlet pipe, so as to further seal the contact between the circular tube 23 and the air inlet pipe and improve the sealing effect. Anti-skid sheets 210 are respectively fixedly connected to both sides of the circular tube 23, and a plurality of protrusions are provided on one side of the anti-skid sheet 210. By pinching the protrusions of the anti-skid sheets 210 on both sides of the circular tube 23 with your hands, the circular tube 23 can be taken more conveniently to insert the rectangular block 24 into the interior of the slot block 21 or pull it out from the interior of the slot block 21 to disassemble and assemble the circular tube 23.

[0032] Reference Figure 1 , Figure 2 and Figure 4 As shown, in the present embodiment: an auxiliary device 3 is provided on one side of the circular tube 23, the auxiliary device 3 comprises a disc 32, two clamping blocks 33 are fixedly connected to one side of the disc 32, two clamping grooves 31 are provided at one end of the circular tube 23, the outer surface size and shape of the clamping blocks 33 are adapted to the inner wall size and shape of the clamping grooves 31, when the body 1 is not in use, the two clamping blocks 33 on one side of the disc 32 can be inserted into the two clamping grooves 31 on one side of the circular tube 23, and one end of the circular tube 23 can be closed to avoid dust accumulation inside the circular tube 23 as much as possible to affect the filtering effect of the filtering device 2.

[0033] Reference Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment: an auxiliary block 35 is fixedly connected to one side of the disc 32, and grooves are provided on both sides of the auxiliary block 35. By pinching the grooves on both sides of the auxiliary block 35, the disc 32 can be more conveniently controlled to insert or pull out the two blocks 33 on one side of the disc 32 into the slot 31, and an elastic rope 34 is fixedly connected to one side of the disc 32. The end of the elastic rope 34 away from the disc 32 is fixedly connected to one side of the circular tube 23. When the disc 32 is removed from one side of the circular tube 23, the elastic rope 34 can be used to fix the disc 32 on the outside of the circular tube 23 for easy removal and use.

[0034] Working principle: When using the pre-stretching device for the production of ultra-high molecular weight polyethylene fibers, the polyethylene fibers are fed from the feed port 4 at one end of the machine body 1 between the stretching rollers located inside the machine body 1, and then the two rectangular blocks 24 at one end of the round tube 23 are inserted into the slots 22 of the two slot blocks 21 on the outer surface of the air inlet pipe of the air inlet device 7, and the round tube 23 is pushed so that the rectangular block 24 is completely inside the slot block 21, and then the positioning block 27 on the outer surface of the positioning rod 26 is rotated so that the positioning block 27 moves on the outer surface of the positioning rod 26 toward the direction of the rectangular block 24 and passes through the through holes on the outer surfaces of the rectangular block 24 and the slot block 21 to enter the interior of the rectangular block 24, and the relative positions between the rectangular block 24 and the slot block 21 and the position of the round tube 23 on the outside of the air inlet device 7 are further fixed, and the round tube 23 is fixed on one side of the air inlet device 7, and the auxiliary block pinched on one side of the disc 32. The disc 32 is pulled at 35 to pull the block 33 at one end of the disc 32 out of the slot 31 at one end of the circular tube 23, and the disc 32 is fixed to one side of the circular tube 23 by the elastic rope 34, and then the motor 5 on one side of the body 1 is operated to drive the drafting roller inside the body 1 to rotate, and the blower inside the air inlet device 7 is operated, and the air will pass through the filter plate 25 inside the circular tube 23, and the dust in the air will be filtered through the filter net on the outside, and the tiny particles will be adsorbed through the filter cotton on the inside, so as to avoid the blower from sucking the air with impurities into the body 1 as much as possible, and then the air passes through the electric heating wire to heat the polyethylene fiber inside the body 1, so that the polyethylene fiber is appropriately softened, which is convenient for the drafting operation of the polyethylene fiber, and the exhaust device 6 at the top of the body 1 can extract the fiber debris inside the body 1.

Claims

1. A pre-stretching device for producing ultra-high molecular weight polyethylene fibers, comprising a body (1), characterized in that: A feed port (4) is provided at one end of the machine body (1), a plurality of motors (5) are provided at one side of the machine body (1), an exhaust device (6) is provided at the top of the machine body (1), an air inlet device (7) is provided at one side of the machine body (1), a filter device (2) is provided at one side of the air inlet device (7), the filter device (2) comprises a circular tube (23), two rectangular blocks (24) are fixedly connected to one side of the circular tube (23), a filter plate (25) is fixedly connected inside the circular tube (23), a filter screen and adsorption cotton are respectively provided at two sides of the filter plate (25), and slot blocks (21) are respectively fixedly connected at upper and lower sides of the outer surface of the air inlet pipe of the air inlet device (7), and a slot (22) is provided at one side of the slot block (21).

2. The pre-drafting device for producing ultra-high molecular weight polyethylene fibers according to claim 1, characterized in that: Through holes are respectively provided on the outer surfaces of the groove block (21) and the rectangular block (24); positioning rods (26) are respectively fixedly connected to the upper and lower sides of the circular tube (23); and positioning blocks (27) are threadedly connected to the outer surfaces of the positioning rods (26).

3. The pre-drafting device for producing ultra-high molecular weight polyethylene fibers according to claim 2, characterized in that: A plurality of protrusions (28) are fixedly connected to the top end of the positioning block (27), and the protrusions (28) are distributed in a circular pattern on the outer surface of the positioning block (27).

4. The pre-drafting device for producing ultra-high molecular weight polyethylene fibers according to claim 3, characterized in that: One end of the circular tube (23) is fixedly connected to two baffles (29), and the two baffles (29) are made of rubber material.

5. The pre-drafting device for producing ultra-high molecular weight polyethylene fibers according to claim 4, characterized in that: Anti-slip sheets (210) are fixedly connected to both sides of the circular tube (23), and a plurality of protrusions are provided on one side of the anti-slip sheet (210).

6. A pre-drafting device for producing ultra-high molecular weight polyethylene fibers according to claim 5, characterized in that: An auxiliary device (3) is provided on one side of the circular tube (23), the auxiliary device (3) comprising a circular disk (32), two clamping blocks (33) being fixedly connected to one side of the circular disk (32), two clamping grooves (31) being provided at one end of the circular tube (23), the size and shape of the outer surface of the clamping block (33) being adapted to the size and shape of the inner wall of the clamping groove (31).

7. A pre-drafting device for producing ultra-high molecular weight polyethylene fibers according to claim 6, characterized in that: An auxiliary block (35) is fixedly connected to one side of the disc (32), and grooves are formed on two sides of the auxiliary block (35).

8. The pre-drafting device for producing ultra-high molecular weight polyethylene fibers according to claim 7, characterized in that: An elastic rope (34) is fixedly connected to one side of the circular disc (32), and an end of the elastic rope (34) away from the circular disc (32) is fixedly connected to one side of the circular tube (23).

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