Hot drafting device for producing ultra-high molecular weight polyethylene fibers

Abstract

The utility model provides a hot drafting device for ultra-high molecular weight polyethylene fiber production, which relates to the technical field of hot drafting devices and comprises a drafting box body, a door plate is arranged on the drafting box body, a feeding port is arranged on the drafting box body, a discharging port is arranged on the drafting box body, and a hot air pipe is arranged on the door plate. Two rotating rollers are rotationally connected into the drafting box body, an adjusting roller is arranged in the drafting box body, a drafting roller is arranged in the drafting box body, a limiting roller is arranged in the drafting box body, heating pipes are fixedly connected to the inner walls of the two sides of the drafting box body respectively, a first motor is arranged on the drafting roller, and a second motor is arranged on the second motor. The drafting box body is provided with a reciprocating structure, the reciprocating structure is mainly composed of two sliding grooves, and the problem that the drafting efficiency is reduced due to the fact that an existing drafting mode is single and elasticity of ultra-high molecular weight polyethylene fibers cannot be further expanded is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot drawing devices, in particular to a hot drawing device for producing ultra-high molecular weight polyethylene fibers. Background Art

[0002] Ultra-high molecular weight polyethylene is an unbranched linear polyethylene with a molecular weight of more than 1.5 million. Fiber refers to a substance composed of continuous or discontinuous filaments. Polyethylene fiber refers to a fiber material obtained by spinning polyethylene by melt spinning. It has the advantages of high strength, low density, and good insulation. It is mainly used to produce various industrial textiles, especially filter materials, tarpaulins, mesh belts and other products. The main production processes of ultra-high molecular weight polyethylene fibers are as follows: preparation of raw materials - twin-screw extruder - spinning box - spinneret - extraction - drying - heating and drawing - winding and molding. Therefore, a hot drawing device is required for the drawing process in the production process of ultra-high molecular weight polyethylene fibers.

[0003] When using the existing hot stretching device for ultra-high molecular weight polyethylene fiber production, the staff often finds that: At present, when ultra-high molecular weight polyethylene fibers are stretched in a box, the space in the box is mostly heated, and then the fibers are pressed tightly against one side of the roller, and then flattened and stretched. This stretching method is single and cannot further expand the elasticity of the ultra-high molecular weight polyethylene fibers, thus reducing the stretching efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a hot drawing device for producing ultra-high molecular weight polyethylene fibers.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hot stretching device for ultra-high molecular weight polyethylene fiber production, comprising a stretching box, a door panel is provided on the stretching box, a feeding port is provided on the stretching box, a discharging port is provided on the stretching box, two rotating rollers are rotatably connected in the stretching box, an adjusting roller is provided in the stretching box, a stretching roller is provided in the stretching box, a limiting roller is provided in the stretching box, heating tubes are fixedly connected to the inner walls on both sides of the stretching box, a first motor is provided on the stretching roller, a reciprocating structure is provided on the stretching box, the reciprocating structure is mainly composed of two slide grooves, the two slide grooves are respectively opened on both sides of the stretching box, a slider is slidably connected in the slide groove, the two slide grooves are rotatably connected to the stretching roller, a first motor is fixedly connected to one of the sliders, and the output shaft of the first motor is fixedly connected to the stretching roller.

[0006] The effect achieved by the above components is: open the door panel, spread the fiber Figure 2As shown, it passes through the feed port, is wound around two rotating rollers and an adjusting roller, then passes between the drafting roller and the limiting roller, and finally passes through the discharge port, and then the two heating tubes are started to heat the drafting box, and the drafting roller and the limiting roller flatten and stretch the fiber, and then the first motor is started to rotate counterclockwise, and the output shaft of the first motor drives the drafting roller to rotate, thereby driving the fiber forward, and can be continuously stretched, and the fiber at the feed port end is limited, and then the two sliders are slid to the left, so that the two sliders drive the drafting roller and the limiting roller to move to the left, thereby driving the fiber to perform the next step of stretching, so that it is more fully stretched, thereby avoiding the situation where the current single drafting method cannot further expand the elasticity of the ultra-high molecular weight polyethylene fiber, resulting in reduced drafting efficiency.

[0007] Preferably, a first spring is fixedly connected to an inner wall of one side of the slide groove, and one end of the first spring is fixedly connected to the sliding block.

[0008] The effect achieved by the above components is: when the slider is slid to the left, the first spring will be squeezed to contract. When the fiber is further stretched, the two sliders are released, and the slider is reset under the rebound force of the first spring, which is convenient for the next stretching.

[0009] Preferably, a rack is fixedly connected to one of the sliders, and a half gear is meshingly connected to the rack.

[0010] The effect achieved by the above components is: when the half gear is rotated, the half gear will drive the rack to move. When the smooth part of the half gear contacts the rack, the rack will reset under the action of the rebound force of the first spring. When the half gear rotates until the serrated part meshes with the rack, it will continue to drive the rack to move, and so on, which can improve the convenience of operation.

[0011] Preferably, a device plate is fixedly connected to the drawing box, a second motor is fixedly connected to the device plate, and an output shaft of the second motor is fixedly connected to the half gear.

[0012] The effect achieved by the above components is: when the second motor is started, the output shaft of the second motor drives the half gear to rotate without manual rotation, thereby further improving the convenience of operation.

[0013] Preferably, an adjustment plate is fixedly connected to the sliding block, a sliding groove is formed on the adjustment plate, a sliding block is slidably connected in the sliding groove, and the sliding block is rotationally connected to the limiting roller.

[0014] The effect achieved by the above components is that the position of the limiting roller can be adjusted by sliding the two sliding blocks, so that the drafting roller and the limiting roller can flatten and draft fibers of different sizes.

[0015] Preferably, a second spring is fixedly connected to an inner wall of one side of the sliding groove, and one end of the second spring is fixedly connected to the sliding block.

[0016] The effect achieved by the above components is that when the limiting roller flattens the fiber, the second spring is in a contracted state, so the rebound elastic force of the second spring acts on the fiber, which can enhance the flattening and stretching effect.

[0017] Preferably, an adjustment structure is provided on the drawing box, and the adjustment structure is mainly composed of two adjustment grooves, which are respectively opened on the inner walls on both sides of the drawing box, and adjustment blocks are slidably connected in the adjustment grooves, and the two adjustment blocks are rotatably connected to the adjustment rollers.

[0018] The effect achieved by the above components is that the position of the adjusting roller can be adjusted by sliding the two adjusting blocks, thereby adjusting the length of the drafted fiber.

[0019] Preferably, a threaded rod is rotatably connected in one of the adjustment slots, the threaded rod is threadably inserted on the adjustment block, a third motor is fixedly connected to the drafting box, and an output shaft of the third motor is fixedly connected to the threaded rod.

[0020] The effect achieved by the above components is: start the third motor, the output shaft of the third motor drives the threaded rod to rotate, and since the adjustment block slides within the adjustment groove, the rotation of the threaded rod drives the adjustment block to move, making the adjustment operation more convenient.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are that, in the utility model, by setting a reciprocating structure, the two sliders are slid to the left, so that the two sliders drive the drafting roller and the limit roller to move to the left, thereby driving the fiber to perform the next step of stretching, so that the drafting is more sufficient. When the slider is slid to the left, the first spring is squeezed to contract. When the fiber is further stretched, the two sliders are released, and the slider is reset under the action of the rebound elastic force of the first spring, which is convenient for the next drafting. The half gear is rotated, and the half gear drives the rack to move. When the smooth part of the half gear contacts the rack, the rack is in the first rebound. The gear is reset under the action of the spring rebound force. When the half gear rotates to the point where the serrated part meshes with the rack, it continues to drive the rack to move, and so on. The convenience of operation can be improved. The second motor is started, and the output shaft of the second motor drives the half gear to rotate without manual rotation, which further improves the convenience of operation. The position of the limit roller can be adjusted by sliding two sliding blocks, so that the drafting roller and the limit roller can flatten and stretch fibers of different sizes. When the limit roller flattens the fibers, the second spring is in a contracted state, so the rebound elastic force of the second spring will act on the fibers, which can enhance the flattening and stretching effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1The utility model provides a three-dimensional structural schematic diagram of a hot drawing device for producing ultra-high molecular weight polyethylene fibers;

[0023] Figure 2 The utility model provides a three-dimensional structural schematic diagram of another perspective of a hot drawing device for producing ultra-high molecular weight polyethylene fibers;

[0024] Figure 3 This is a partial schematic diagram of a reciprocating structure of a hot drawing device for producing ultra-high molecular weight polyethylene fibers proposed in the utility model;

[0025] Figure 4 The utility model proposes a hot drawing device for producing ultra-high molecular weight polyethylene fibers Figure 2 Enlarged view of part A.

[0026] Legend: 1. Drafting box; 2. Feeding port; 3. Discharging port; 4. Rotating roller; 5. Adjusting roller; 6. Drafting roller; 7. Limiting roller; 8. Reciprocating structure; 81. Slide groove; 82. Sliding block; 83. First spring; 84. Rack; 85. Half gear; 86. Equipment plate; 87. Second motor; 88. Adjusting plate; 89. Sliding groove; 810. Second spring; 9. Adjusting structure; 91. Adjusting groove; 92. Adjusting block; 93. Threaded rod; 94. Third motor; 10. Heating tube; 11. First motor. DETAILED DESCRIPTION

[0027] Embodiment 1, as Figure 1 and Figure 2 As shown, a hot stretching device for producing ultra-high molecular weight polyethylene fiber includes a stretching box 1, a door panel is provided on the stretching box 1, a material inlet 2 is provided on the stretching box 1, a material outlet 3 is provided on the stretching box 1, two rotating rollers 4 are rotatably connected in the stretching box 1, an adjusting roller 5 is provided in the stretching box 1, a stretching roller 6 is provided in the stretching box 1, a limiting roller 7 is provided in the stretching box 1, heating tubes 10 are fixedly connected to the inner walls on both sides of the stretching box 1, and a first motor 11 is provided on the stretching roller 6.

[0028] Reference Figure 3 and Figure 4 The drafting box 1 is provided with a reciprocating structure 8, which is mainly composed of two slides 81, which are respectively opened on both sides of the drafting box 1, and a slider 82 is slidably connected in the slide 81, and the two slides 81 are rotatably connected with the drafting roller 6. A first motor 11 is fixedly connected to a slider 82, and the output shaft of the first motor 11 is fixedly connected to the drafting roller 6. Open the door panel to move the fiber according to Figure 2As shown, the fiber passes through the feed port 2, is wound around two rotating rollers 4 and an adjusting roller 5, then passes between the drafting roller 6 and the limiting roller 7, and finally passes out from the discharge port 3, and then the two heating tubes 10 are started to heat the inside of the drafting box 1, and the drafting roller 6 and the limiting roller 7 flatten and stretch the fiber, and then the first motor 11 is started to rotate counterclockwise, and the output shaft of the first motor 11 drives the drafting roller 6 to rotate, thereby driving the fiber forward, and can be continuously stretched, and the fiber at the end of the feed port 2 is limited, and then the two sliders 82 are slid to the left, so that the two sliders 82 drive the drafting roller 6 and the limiting roller 7 to move to the left, thereby driving the fiber to perform the next step of stretching, so that the drafting is more The present invention can fully avoid the situation that the current single drafting method cannot further expand the elasticity of the ultra-high molecular weight polyethylene fiber, which leads to a decrease in the drafting efficiency. A first spring 83 is fixedly connected to the inner wall of one side of a slide groove 81. One end of the first spring 83 is fixedly connected to the slider 82. When the slider 82 is slid to the left, the first spring 83 is squeezed to contract. When the fiber is further drafted, the two sliders 82 are released. The slider 82 is reset under the rebound force of the first spring 83, which is convenient for the next drafting. A rack 84 is fixedly connected to a slider 82. A half gear 85 is meshed with the rack 84. When the half gear 85 is rotated, the half gear 85 is rotated. , the half gear 85 will drive the rack 84 to move. When the smooth part of the half gear 85 contacts the rack 84, the rack 84 will reset under the rebound force of the first spring 83. When the half gear 85 rotates until the serrated part is engaged with the rack 84, it will continue to drive the rack 84 to move, and so on. The convenience of operation can be improved. The drafting box 1 is fixedly connected with an equipment plate 86, and the equipment plate 86 is fixedly connected with a second motor 87. The output shaft of the second motor 87 is fixedly connected to the half gear 85. When the second motor 87 is started, the output shaft of the second motor 87 drives the half gear 85 to rotate. There is no need to rotate manually, which further improves the convenience of operation. The slider 82 is fixedly connected with an adjusting plate 88, and a sliding groove 89 is provided on the adjusting plate 88. A sliding block is slidably connected in the sliding groove 89, and the sliding block is rotatably connected to the limiting roller 7. The position of the limiting roller 7 can be adjusted by sliding the two sliding blocks, so that the drafting roller 6 and the limiting roller 7 can flatten and stretch fibers of different sizes. A second spring 810 is fixedly connected to the inner wall of one side of the sliding groove 89, and one end of the second spring 810 is fixedly connected to the sliding block. When the limiting roller 7 flattens the fiber, the second spring 810 is in a contracted state, so the rebound elastic force of the second spring 810 will act on the fiber, which can enhance the flattening and stretching effect.

[0029] Reference Figure 1 and Figure 2, an adjusting structure 9 is provided on the drafting box 1, and the adjusting structure 9 is mainly composed of two adjusting grooves 91, and the two adjusting grooves 91 are respectively opened on the inner walls of both sides of the drafting box 1, and an adjusting block 92 is slidably connected in the adjusting groove 91, and the two adjusting blocks 92 are rotatably connected to the adjusting roller 5. The position of the adjusting roller 5 can be adjusted by sliding the two adjusting blocks 92, and then the length of the drafted fiber can be adjusted. A threaded rod 93 is rotatably connected in one adjusting groove 91, and the threaded rod 93 is threadedly inserted on the adjusting block 92. A third motor 94 is fixedly connected to the drafting box 1, and the output shaft of the third motor 94 is fixedly connected to the threaded rod 93. When the third motor 94 is started, the output shaft of the third motor 94 drives the threaded rod 93 to rotate. Since the adjusting block 92 slides in the adjusting groove 91, the rotation of the threaded rod 93 will drive the adjusting block 92 to move, making the adjustment operation more convenient.

[0030] Working principle: The main production process of ultra-high molecular weight polyethylene fiber is as follows: raw material preparation - twin-screw extruder - spinning box - spinneret - extraction - drying - heating and stretching - winding and forming. Therefore, in the production process of ultra-high molecular weight polyethylene fiber, a hot stretching device is required for the stretching process. Open the door panel and stretch the fiber according to the Figure 2As shown, the fiber passes through the feed port 2, is wound around two rotating rollers 4 and an adjusting roller 5, then passes between the drafting roller 6 and the limiting roller 7, and finally passes out from the discharge port 3, and then the two heating tubes 10 are started to heat the inside of the drafting box 1, and the drafting roller 6 and the limiting roller 7 flatten and stretch the fiber, and then the first motor 11 is started to rotate counterclockwise, and the output shaft of the first motor 11 drives the drafting roller 6 to rotate, thereby driving the fiber forward, and can be continuously stretched, and the fiber at the end of the feed port 2 is limited, and then the two sliders 82 are slid to the left, so that the two sliders 82 drive the drafting roller 6 and the limiting roller 7 move to the left, thereby driving the fiber to perform the next stretching, making it drafted more fully, thereby avoiding the situation where the current single drafting method cannot further expand the elasticity of the ultra-high molecular weight polyethylene fiber, resulting in reduced drafting efficiency. When the slider 82 is slid to the left, the first spring 83 will be squeezed to contract. When the fiber is further drafted, the two sliders 82 are released, and the slider 82 is reset under the rebound elastic force of the first spring 83, which is convenient for the next drafting. The half gear 85 is rotated, and the half gear 85 drives the rack 84 to move When the smooth part of the half gear 85 contacts the rack 84, the rack 84 is reset under the rebound force of the first spring 83. When the half gear 85 rotates until the serrated part meshes with the rack 84, it continues to drive the rack 84 to move, and so on. The convenience of operation is improved. The second motor 87 is started, and the output shaft of the second motor 87 drives the half gear 85 to rotate without manual rotation, which further improves the convenience of operation. The position of the limit roller 7 can be adjusted by sliding the two sliding blocks, so that the drafting roller 6 and the limit roller 7 can be adjusted to different sizes. The fibers are flattened and stretched. When the limiting roller 7 flattens the fibers, the second spring 810 is in a contracted state, so the rebound force of the second spring 810 acts on the fibers, which can enhance the flattening and stretching effect. The position of the adjusting roller 5 can be adjusted by sliding the two adjusting blocks 92, thereby adjusting the length of the stretched fibers. The third motor 94 is started, and the output shaft of the third motor 94 drives the threaded rod 93 to rotate. Since the adjusting block 92 slides in the limiting position in the adjusting slot 91, the rotation of the threaded rod 93 drives the adjusting block 92 to move, making the adjustment operation more convenient.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A hot drawing device for producing ultra-high molecular weight polyethylene fibers, comprising a drawing box (1), characterized in that: The drafting box (1) is provided with a door panel, the drafting box (1) is provided with a material inlet (2), the drafting box (1) is provided with a material outlet (3), the drafting box (1) is provided with two rotating rollers (4) rotatably connected therein, the drafting box (1) is provided with an adjusting roller (5), the drafting box (1) is provided with a drafting roller (6), the drafting box (1) is provided with a limiting roller (7), the inner walls on both sides of the drafting box (1) are respectively fixedly connected with heating pipes (10), the drafting roller (6) is provided with a A first motor (11) is arranged, and a reciprocating structure (8) is arranged on the drafting box (1). The reciprocating structure (8) is mainly composed of two slide grooves (81). The two slide grooves (81) are respectively opened on both sides of the drafting box (1). A slider (82) is slidably connected in the slide grooves (81). The two slide grooves (81) are rotatably connected to the drafting roller (6). The first motor (11) is fixedly connected to one of the sliders (82), and the output shaft of the first motor (11) is fixedly connected to the drafting roller (6).

2. The hot drawing device for producing ultra-high molecular weight polyethylene fibers according to claim 1, characterized in that: A first spring (83) is fixedly connected to an inner wall of one side of the sliding groove (81), and one end of the first spring (83) is fixedly connected to the sliding block (82).

3. The hot stretching device for producing ultra-high molecular weight polyethylene fibers according to claim 2, characterized in that: A rack (84) is fixedly connected to one of the sliders (82), and a half gear (85) is meshingly connected to the rack (84).

4. The hot drawing device for producing ultra-high molecular weight polyethylene fibers according to claim 3, characterized in that: The drafting box (1) is fixedly connected to a device plate (86), the device plate (86) is fixedly connected to a second motor (87), and the output shaft of the second motor (87) is fixedly connected to the half gear (85).

5. The hot stretching device for producing ultra-high molecular weight polyethylene fibers according to claim 4, characterized in that: The slider (82) is fixedly connected with an adjustment plate (88), the adjustment plate (88) is provided with a sliding groove (89), a sliding block is slidably connected in the sliding groove (89), and the sliding block is rotationally connected to the limiting roller (7).

6. The hot drawing device for producing ultra-high molecular weight polyethylene fibers according to claim 5, characterized in that: A second spring (810) is fixedly connected to an inner wall of one side of the sliding groove (89), and one end of the second spring (810) is fixedly connected to the sliding block.

7. The hot stretching device for producing ultra-high molecular weight polyethylene fibers according to claim 6, characterized in that: The drafting box (1) is provided with an adjustment structure (9), which is mainly composed of two adjustment grooves (91). The two adjustment grooves (91) are respectively opened on the inner walls on both sides of the drafting box (1), and an adjustment block (92) is slidably connected in the adjustment groove (91). The two adjustment blocks (92) are rotationally connected to the adjustment roller (5).

8. The hot stretching device for producing ultra-high molecular weight polyethylene fibers according to claim 7, characterized in that: A threaded rod (93) is rotatably connected in one of the adjustment slots (91), the threaded rod (93) being threadedly inserted on the adjustment block (92), a third motor (94) being fixedly connected to the drafting box (1), and an output shaft of the third motor (94) being fixedly connected to the threaded rod (93).

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