A polyester fiber tensioning and heat setting device

Abstract

The application relates to the polyester fiber production technical field, in particular to a polyester fiber tensioning heat setting device, which comprises a heat setting box body, the heat setting box body is connected with a support seat in vertical sliding mode, the support seat is rotationally connected with a setting roller, one end of the setting roller close to the support seat is provided in an open mode, the outer end surface of the support seat is provided with a mounting opening which is communicated with the inner cavity of the setting roller, the support seat is detachably connected with a plug-in disc which is plugged into the mounting opening, and the plug-in disc is fixedly connected with an electric heating element which is inserted into the inner cavity of the setting roller. The support seat and the plug-in disc are detachably connected, the plug-in disc can be directly disassembled when needed, the electric heating element can be replaced and maintained, the setting roller does not need to be disassembled, and the replacement and maintenance efficiency of the electric heating element is improved.

Description

Technical Field

[0001] This application relates to the field of polyester fiber production technology, and in particular to a polyester fiber tensioning and heat setting device. Background Technology

[0002] The production process of polyester staple fiber mainly involves spinning through a spinneret, followed by cooling with air blowing, and then processes such as bundling, oiling, stretching, heat setting, winding, cutting, and packaging. After spinning, polyester staple fiber requires further processing through a tension heat setting device to improve its elasticity and shape retention, and to maintain its filling effect. The tension heat setting device utilizes the heat exchange between the fiber and hot rollers during the stretching process. This not only achieves further stretching of the fiber but also uses heat to perfect the fiber's crystallization and orientation, maintaining its stretching effect and preserving its elasticity.

[0003] Currently, Chinese patent CN215251367 U discloses a tension heat setting device for producing high-strength, low-elongation recycled polyester staple fiber, which includes a heat setting box, a support base that slides vertically along the inner wall of the heat setting box, a setting wheel that is rotatably connected to the support base, the setting wheel having a hollow structure, a spiral guide groove on the outer wall of the setting wheel, and an electric heating wire fixedly connected to the support base at the center of the setting wheel.

[0004] In the above structure, the heating wire is located at the center of the shaping wheel. When the heating wire needs to be replaced or maintained, the shaping wheel needs to be disassembled and then the heating wire needs to be disassembled, which results in low replacement and maintenance efficiency of the heating wire. Therefore, further improvement is needed. Utility Model Content

[0005] To improve the efficiency of disassembling and replacing electric heating wires, this application provides a polyester fiber tensioning and heat setting device.

[0006] The polyester fiber tensioning and heat setting device provided in this application adopts the following technical solution: A polyester fiber tensioning and heat setting device includes a heat setting box, a support base that slides vertically through the heat setting box, a setting roller that is rotatably connected to the support base, an open end of the setting roller near the support base, an installation port through which the outer end face of the support base communicates with the inner cavity of the setting roller, a plug-in plate that is detachably connected to the support base and inserted into the installation port, and an electric heating element that extends into the inner cavity of the setting roller that is fixedly connected to the plug-in plate.

[0007] By adopting the above technical solution, the shaping roller has an opening at one end near the support base, which, together with the mounting port of the support base, allows the insertion plate to be inserted into it, and the electric heating element can extend into the inner cavity of the shaping roller for heating. The support base and the insertion plate are detachably connected, making it easy to directly disassemble the insertion plate when needed, thereby replacing and maintaining the electric heating element without disassembling the shaping roller, thus improving the efficiency of replacing and maintaining the electric heating element.

[0008] Preferably, the electric heating element is an electric heating rod, and multiple electric heating rods are provided and distributed around the axis of the insertion plate.

[0009] By adopting the above technical solution, the electric heating element is set as multiple electric heating rods distributed around the axis of the insert plate, which can heat the inner cavity of the shaping roller more evenly and improve the heating effect and efficiency.

[0010] Preferably, the end of the plug-in plate is fixedly connected to a limiting ring that abuts against the outer end face of the support base, and the limiting ring is provided with a fixing bolt threaded to the support base.

[0011] By adopting the above technical solution, when the electric heating element needs to be replaced or maintained, the connector plate can be removed by disassembling the fixing bolts, without disassembling the shaping roller, thus improving the efficiency of replacement and maintenance.

[0012] Preferably, the end of the plug-in plate is fixedly connected to a limiting ring that abuts against the outer end face of the support base, and the outer end face of the support base is fixedly connected to a fixing block located outside the limiting ring. The fixing block slides radially along the limiting ring and passes through a limiting rod. The limiting rod abuts against the outer end face of the limiting ring. The fixing block is provided with an elastic element that forces the limiting rod to slide closer to the limiting ring under normal conditions.

[0013] By adopting the above technical solution, the limiting rod on the fixed block abuts against the limiting ring under the action of the elastic element, thereby achieving a stable connection between the plug plate and the support base. When disassembly is required, the limiting rod can be moved by overcoming the force of the elastic element, which improves the convenience of replacing and maintaining the electric heating element.

[0014] Preferably, multiple fixing blocks are provided and evenly distributed around the axis of the mounting opening.

[0015] By adopting the above technical solution, multiple fixing blocks evenly distributed around the axis of the mounting port, together with the limiting rod and elastic element, can uniformly apply limiting force to each position in the circumferential direction of the limiting ring, making the connection between the insertion plate and the support base more stable, and ensuring that the electric heating element is stably located in the inner cavity of the shaping roller for heating work.

[0016] Preferably, the end of the limiting rod away from the limiting ring is fixedly connected to a force-applying plate, and the elastic element is a spring sleeved on the limiting rod, with one end of the spring fixedly connected to the force-applying plate and the other end of the spring fixedly connected to the fixing block.

[0017] By adopting the above technical solution, a force plate is provided at the end of the limiting rod, and a spring is sleeved on the limiting rod and connected to the force plate and the fixing block. Under normal conditions, the spring forces the limiting rod to slide towards the limiting ring, which can automatically make the limiting rod abut against the limiting ring, ensuring the stable connection between the plug plate and the support base.

[0018] Preferably, a drive ring is rotatably connected to the outer wall of the support base, the drive ring and the limiting ring are coaxially arranged, and a connecting rope is fixedly connected between the drive ring and the end of the limiting rod away from the limiting ring.

[0019] By adopting the above technical solution, when it is necessary to disassemble the plug-in plate, rotating the drive ring will pull all the limit rods simultaneously away from the limit ring using the connecting rope, so that the limit rods can be disengaged from the limit ring and the limit on the plug-in plate can be quickly released. When it is necessary to install the plug-in plate, rotating the drive ring in the opposite direction will loosen the connecting rope, and the limit rods will automatically abut against the limit ring under the action of the elastic element to fix the plug-in plate, thereby improving the efficiency of replacing and maintaining the electric heating element.

[0020] Preferably, an operating rod is fixedly protruding from the outer peripheral wall of the drive ring.

[0021] By adopting the above technical solution, an operating lever is set up to facilitate the operator to rotate the drive ring, and then the limit rod is moved by the connecting rope, so as to realize the quick disassembly and installation of the plug-in plate.

[0022] Preferably, the outer wall of the support base is provided with a rotating annular groove, and the drive ring is coaxially fixedly connected to a rotating protrusion that is rotatably connected to the rotating annular groove. The inner wall of the rotating annular groove is provided with an elastic jumping bean, and the outer wall of the rotating protrusion is provided with a limiting groove for the elastic jumping bean to be embedded. When the elastic jumping bean is embedded in the limiting groove, the connecting rope is in a slack state.

[0023] By adopting the above technical solution, the drive ring is rotated in the opposite direction, the connecting rope is loosened, and after the elastic jumping bean is aligned with the limiting groove, the elastic jumping bean is embedded in the limiting groove. At this time, the rotational damping of the drive ring increases, reminding the staff to stop rotating immediately. At this time, the limiting rod limits the drive ring to prevent the drive ring from rotating arbitrarily.

[0024] Preferably, an exhaust pipe is fixedly installed on the top wall of the heat-setting box, and a cooling pipe sleeved on the exhaust pipe is fixedly connected to the upper end face of the heat-setting box. A cooling channel is formed between the inner peripheral wall of the cooling pipe and the outer peripheral wall of the exhaust pipe. Circulating cooling water flows through the cooling channel. An adsorption box is fixedly installed at the upper end of the exhaust pipe, and the exhaust pipe is connected to the inner cavity of the adsorption box. An exhaust pipe is fixedly installed on the top wall of the adsorption box, and a centrifugal fan is connected to the outside of the exhaust pipe. A lower mesh plate is fixedly installed on the inner wall of the bottom of the adsorption box, and an upper mesh plate located above the lower mesh plate is fixedly connected to the inner side wall of the adsorption box. Activated carbon particles are filled between the lower mesh plate and the upper mesh plate.

[0025] By adopting the above technical solution, a small amount of waste gas will be released during the tensioning and heat setting of polyester fibers. The waste gas is first cooled down through the exhaust pipe and then passes through the activated carbon particle bed in the adsorption box. The gas purified by the activated carbon particles is discharged through the tail gas pipe.

[0026] In summary, this utility model has the following beneficial effects: 1. The shaping roller has an opening at one end near the support base, which, in conjunction with the mounting port of the support base, allows the insertion plate to be inserted into it, and the electric heating element can extend into the inner cavity of the shaping roller for heating; the support base and the insertion plate are detachably connected, making it easy to directly disassemble the insertion plate when needed, thereby replacing and maintaining the electric heating element without disassembling the shaping roller, thus improving the efficiency of replacing and maintaining the electric heating element; 2. By setting the electric heating element as multiple electric heating rods distributed around the axis of the insertion plate, the inner cavity of the shaping roller can be heated more evenly, thereby improving the heating effect and efficiency; 3. The limiting rod on the fixed block abuts against the limiting ring under the action of the elastic element, so as to realize the stable connection between the plug plate and the support base. When disassembly is required, the limiting rod can be moved by overcoming the force of the elastic element, which improves the convenience of replacing and maintaining the electric heating element. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a polyester fiber tensioning and heat setting device in Example 1; Figure 2 This is a schematic diagram of the internal structure of the heat-setting box in Example 1; Figure 3 This is a schematic diagram of the connection structure between the support base and the shaping roller in Example 1; Figure 4 yes Figure 3 A magnified view of a portion at point A; Figure 5 This is a schematic diagram of the overall structure of a polyester fiber tensioning and heat setting device in Example 3; Figure 6 This is a schematic diagram of the internal structure of the adsorption box in Example 3.

[0028] In the diagram, 1. Heat setting box; 11. Guide column; 12. Telescopic cylinder; 13. Inspection door; 14. Exhaust pipe; 15. Cooling pipe; 2. Support base; 21. Slider; 211. Transmission arm; 212. Transmission rack; 22. Bearing body; 23. End cover; 24. Mounting port; 25. Fixing block; 251. Spring; 26. Limiting rod; 261. Force plate; 27. Connecting rope; 28. Drive ring; 281. Rotating protrusion; 282. Operating rod; 29. ​​Rotating ring groove; 291. Elastic jumping bean; 3. Setting roller; 31. Anti-detachment ring; 4. Insertion plate; 41. Limiting ring; 42. Screw hole; 5. Electric heating rod; 51. Connecting part; 6. Adsorption box; 61. Lower mesh plate; 62. Upper mesh plate; 63. Stirring shaft; 64. Stirring blade; 65. Transmission gear; 66. Exhaust pipe. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0030] Example 1: This application discloses a polyester fiber tensioning and heat setting device, referring to... Figure 1 , Figure 2 The system includes a heat-setting chamber 1, with a feeding channel and a discharging channel fixedly installed on opposite sides of the heat-setting chamber 1. Two guide columns 11 are fixedly connected between the top and bottom inner walls of the heat-setting chamber 1, spaced apart. The heat-setting chamber 1 has a support base 2 located between the two guide columns 11 and slidably connected to them vertically. Specifically, the opposite side walls of the guide columns 11 have grooves, and a slider 21 protrudes from the outer wall of the support base 2 and is slidably connected to the grooves.

[0031] The top wall of the heat-setting chamber 1 is equipped with a lifting drive component that drives the support base 2 to move up and down. In this embodiment, the lifting drive component is a telescopic cylinder 12. The telescopic cylinder 12 can be a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder. The cylinder body of the telescopic cylinder 12 is fixedly connected to the top wall of the heat-setting chamber 1, and the piston rod of the telescopic cylinder 12 is fixedly connected to the upper end face of the support base 2. An inspection port is provided on the side wall of the heat-setting chamber 1 near the support base 2, and an inspection door 13 for controlling the opening and closing of the inspection port is hinged to the side wall of the heat-setting chamber 1.

[0032] Reference Figure 3 , Figure 4A shaping roller 3 is coaxially rotatably connected to the end face of the support base 2 away from the inspection port. Specifically, a bearing groove is provided on the end face of the support base 2 away from the inspection port, and a bearing body 22 is fixedly embedded in the bearing groove. The end of the shaping roller 3 near the support base 2 is open, and the other end of the shaping roller 3 is closed. The open end of the shaping roller 3 is fixedly inserted into the inner hole of the bearing body 22. An anti-detachment ring 31 protrudes from the outer wall of the end of the shaping roller 3 and abuts against the end face of the bearing body 22. An end cap 23, which is sleeved on the shaping roller 3 and abuts against the end face of the anti-detachment ring 31, is detachably connected to the end face of the support base 2 away from the inspection port by bolts.

[0033] The support base 2 has a through-hole 24 on its end face near the detection port, which communicates with the inner cavity of the shaping roller 3. A connector 4 is detachably connected to the support base 2 and inserted into the through-hole 24. The connector 4 and the support base 2 are coaxial. An electric heating element extending into the inner cavity of the shaping roller 3 is fixedly connected to the connector 4. In this embodiment, the electric heating element is an electric heating rod 5, and multiple electric heating rods 5 are arranged and distributed around the axis of the connector 4. The connection structure between the electric heating rod 5 and the connector 4 is as follows: a connecting part 51 is coaxially fixedly sleeved on the end of the electric heating rod 5; a screw hole 42 is through-hole on the outer end face of the connector 4; and the connecting part 51 is threadedly connected to the screw hole 42.

[0034] A limiting ring 41 is coaxially fixedly connected to the end of the plug-in plate 4, abutting against the outer end face of the support base 2. A fixing block 25 located outside the limiting ring 41 is fixedly connected to the outer end face of the support base 2. Multiple fixing blocks 25 are provided and evenly distributed around the axis of the mounting port 24. A limiting rod 26 is slidably inserted through the fixing block 25 along the radial direction of the limiting ring 41. The limiting rod 26 abuts against the outer end face of the limiting ring 41. The fixing block 25 is provided with an elastic element that forces the limiting rod 26 to slide closer to the limiting ring 41 under normal conditions. A force-applying plate 261 is fixedly connected to the end of the limiting rod 26 away from the limiting ring 41. The elastic element is a spring 251 sleeved on the limiting rod 26. One end of the spring 251 is fixedly connected to the force-applying plate 261, and the other end of the spring 251 is fixedly connected to the fixing block 25. In other embodiments, a limiting groove is provided around the outer peripheral wall of the limiting ring 41 for the end of the limiting rod 26 to be inserted.

[0035] A drive ring 28 is coaxially rotatably connected to the outer peripheral wall of the support base 2. Specifically, a rotating annular groove 29 is formed around the outer peripheral wall of the support base 2. A rotating protrusion 281, rotatably connected to the rotating annular groove 29, is coaxially fixedly connected to the inner peripheral wall of the drive ring 28. A connecting rope 27 is fixedly connected between the drive ring 28 and the force application plate 261. An elastic jumping bead 291 is provided on the inner wall of the rotating annular groove 29. A limiting groove is formed on the outer wall of the rotating protrusion 281 for the elastic jumping bead 291 to be inserted. When the elastic jumping bead 291 is inserted into the limiting groove, the connecting rope 27 is in a slack state. An operating rod 282 is protruding and fixed on the outer peripheral wall of the drive ring 28. Multiple operating rods 282 are provided and distributed around the axis of the drive ring 28.

[0036] The implementation principle of the polyester fiber tensioning and heat setting device in this application embodiment is as follows: When it is necessary to disassemble the plug plate 4, the drive ring 28 is rotated by operating rod 282, and all the limiting rods 26 are pulled by connecting rope 27 to slide away from the limiting ring 41 at the same time, so that the limiting rods 26 are disengaged from the limiting ring 41, and the limiting of the plug plate 4 can be quickly released, so that the plug plate 4 and the electric heating rod 5 can be slid out for maintenance; after maintenance or replacement of the electric heating rod 5, the drive ring 28 is rotated in the opposite direction, the connecting rope 27 is loosened, and the elastic jumping bead 291 is aligned with the limiting groove. After the elastic jumping bead 291 is embedded in the limiting groove, the rotation damping of the drive ring 28 increases, reminding the staff to stop rotating immediately. At this time, the limiting rod 26 slides and abuts against the limiting ring 41 under the elastic action of spring 251 to fix the plug plate 4.

[0037] Example 2: The difference from Embodiment 1 is that the limiting ring 41 is provided with a fixing bolt threaded to the support base 2, and multiple fixing bolts are provided and evenly distributed around the axis of the limiting ring 41.

[0038] Example 3: The difference from Example 1 is that, referring to Figure 5 , Figure 6 An exhaust pipe 14 is fixedly installed on the top wall of the heat-setting chamber 1. A cooling pipe 15, sleeved on the exhaust pipe 14, is fixedly connected to the upper end face of the heat-setting chamber 1. A cooling channel is formed between the inner peripheral wall of the cooling pipe 15 and the outer peripheral wall of the exhaust pipe 14, and circulating cooling water flows through the cooling channel. An adsorption box 6 is fixedly installed at the upper end of the exhaust pipe 14, and the exhaust pipe 14 is connected to the inner cavity of the adsorption box 6. An exhaust pipe 66 is fixedly installed on the top wall of the adsorption box 6, and a centrifugal fan is connected to the outside of the exhaust pipe 66. A lower mesh plate 61 is fixedly installed on the inner wall of the bottom of the adsorption box 6, and an upper mesh plate 62 located above the lower mesh plate 61 is fixedly connected to the inner side wall of the adsorption box 6. Activated carbon particles are filled between the lower mesh plate 61 and the upper mesh plate 62. A stirring shaft 63 located between the lower mesh plate 61 and the upper mesh plate 62 is rotatably connected to the inner side wall of the adsorption box 6, and stirring blades 64 are fixedly connected to the outer peripheral wall of the stirring shaft 63.

[0039] The slider 21 is fixedly connected to a transmission arm 211 that slides through the top wall of the heat-setting box 1. The transmission arm 211 is fixedly connected to a transmission rack 212. The end of the stirring shaft 63 is coaxially fixedly fitted with a transmission gear 65 located outside the adsorption box 6. The transmission rack 212 and the transmission gear 65 mesh. During the tensioning and heat-setting process of polyester fibers, a small amount of waste gas is released. The waste gas is first cooled down through the exhaust pipe 14 and then passes through the activated carbon particle bed in the adsorption box 6. The gas purified by the activated carbon particles is discharged through the tail gas pipe 66. During the process of tensioning and setting polyester fibers on the setting roller 3 by driving the support seat 2 to move up and down through the telescopic cylinder 12, the transmission arm 211 drives the transmission rack 212 to slide up and down together, thereby driving the stirring shaft 63 to rotate through the transmission gear 65, thereby agitating the activated carbon and improving the adsorption effect of the activated carbon particles.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A polyester fiber tensioning and heat setting device, characterized in that: The device includes a heat-setting box (1), which is vertically slidably connected to a support base (2). The support base (2) is rotatably connected to a setting roller (3). The end of the setting roller (3) near the support base (2) is open. The outer end face of the support base (2) is provided with an installation port (24) that communicates with the inner cavity of the setting roller (3). The support base (2) is detachably connected to a plug plate (4) inserted into the installation port (24). The plug plate (4) is fixedly connected to an electric heating element that extends into the inner cavity of the setting roller (3).

2. The polyester fiber tensioning and heat setting device according to claim 1, characterized in that: The electric heating element is an electric heating rod (5), and multiple electric heating rods (5) are provided and distributed around the axis of the insertion plate (4).

3. The polyester fiber tensioning and heat setting device according to claim 1, characterized in that: The end of the plug-in plate (4) is fixedly connected to a limiting ring (41) that abuts against the outer end face of the support base (2), and the limiting ring (41) is provided with a fixing bolt threaded to the support base (2).

4. The polyester fiber tensioning and heat setting device according to claim 1, characterized in that: The end of the plug-in plate (4) is fixedly connected to a limiting ring (41) that abuts against the outer end face of the support base (2). The outer end face of the support base (2) is fixedly connected to a fixing block (25) located outside the limiting ring (41). The fixing block (25) slides radially along the limiting ring (41) and passes through a limiting rod (26). The limiting rod (26) abuts against the outer end face of the limiting ring (41). The fixing block (25) is provided with an elastic element that forces the limiting rod (26) to slide closer to the limiting ring (41) under normal conditions.

5. The polyester fiber tensioning and heat setting device according to claim 4, characterized in that: Multiple fixing blocks (25) are provided and are evenly distributed around the axis of the mounting port (24).

6. The polyester fiber tensioning and heat setting device according to claim 4, characterized in that: The end of the limiting rod (26) away from the limiting ring (41) is fixedly connected to a force plate (261). The elastic element is a spring (251) sleeved on the limiting rod (26). One end of the spring (251) is fixedly connected to the force plate (261), and the other end of the spring (251) is fixedly connected to the fixing block (25).

7. The polyester fiber tensioning and heat setting device according to claim 5, characterized in that: The outer wall of the support base (2) is rotatably connected to a drive ring (28). The drive ring (28) and the limiting ring (41) are coaxially arranged. A connecting rope (27) is fixedly connected between the drive ring (28) and the end of the limiting rod (26) away from the limiting ring (41).

8. The polyester fiber tensioning and heat setting device according to claim 7, characterized in that: An operating rod (282) is fixed to the outer peripheral wall of the drive ring (28).

9. A polyester fiber tensioning and heat-setting device according to claim 7, characterized in that: The outer wall of the support base (2) is provided with a rotating ring groove (29). The drive ring (28) is coaxially fixedly connected to a rotating protrusion (281) that is rotatably connected to the rotating ring groove (29). The inner wall of the rotating ring groove (29) is provided with an elastic jumping bean (291). The outer wall of the rotating protrusion (281) is provided with a limiting groove for the elastic jumping bean (291) to be embedded. When the elastic jumping bean (291) is embedded in the limiting groove, the connecting rope (27) is in a slack state.

10. The polyester fiber tensioning and heat setting device according to claim 1, characterized in that: The heat-setting box (1) has an exhaust pipe (14) fixedly inserted through its top wall. The upper end of the heat-setting box (1) is fixedly connected to a cooling pipe (15) sleeved on the exhaust pipe (14). A cooling channel is formed between the inner circumferential wall of the cooling pipe (15) and the outer circumferential wall of the exhaust pipe (14). Circulating cooling water is introduced into the cooling channel. An adsorption box (6) is fixedly attached to the upper end of the exhaust pipe (14). The exhaust pipe (14) is connected to the inner cavity of the adsorption box (6). A tail gas pipe (66) is fixedly inserted through the top wall of the adsorption box (6). A centrifugal fan is connected to the outside of the tail gas pipe (66). A lower mesh plate (61) is fixedly attached to the inner wall of the bottom of the adsorption box (6). An upper mesh plate (62) located above the lower mesh plate (61) is fixedly connected to the inner side wall of the adsorption box (6). Activated carbon particles are filled between the lower mesh plate (61) and the upper mesh plate (62).

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