Extrusion type drying device for polyester fiber production

Abstract

The utility model relates to the technical field of polyester fiber drying equipment, and discloses an extrusion type drying device for polyester fiber production, which comprises a drying box body, a feed port and a discharge port are respectively formed in the end part in the drying box body along the length direction of the drying box body, and a plurality of extrusion roller groups are distributed in the drying box body along the polyester fiber conveying direction; the supporting rods are located on the two sides of the polyester fiber conveying direction and rotationally arranged on the drying box body, the supporting rods are sleeved with the pressing rollers, the sections of the pressing rollers are in a cam shape, and the protruding ends, deviating from the axis, of the two pressing rollers are oppositely arranged; and the drying box body is provided with an adjusting assembly which is used for independently adjusting and controlling the gap between the pressing rollers and corresponds to each extrusion roller group. The polyester fiber drying device has the effect of improving the polyester fiber drying efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of polyester fiber drying equipment, and in particular to an extrusion drying device for polyester fiber production. Background Art

[0002] Polyester, also known as polyester, is a synthetic fiber made from polyethylene terephthalate (PET). Due to its high strength, excellent tensile strength, abrasion resistance, and colorfastness, it is widely used in clothing, home textiles, industrial textiles, automotive interiors, ropes, fishing nets, filter materials, and many other fields.

[0003] Currently, polyester fibers may absorb moisture during the production process. Proper drying can improve the fiber's physical and mechanical properties, such as strength, elasticity, and abrasion resistance. It also helps enhance the fiber's dyeability and dimensional stability. Drying also prevents fiber clumping caused by excessive humidity during storage and transportation, maintaining a loose fiber structure for easier processing and use. Therefore, drying equipment plays a crucial role in polyester fiber production.

[0004] Chinese patent publication number CN208458429U discloses an extrusion drying device for composite polyester fibers, comprising a transport device and a drying mechanism. The transport device comprises transmission wheels located on the left and right sides of the drying mechanism and a motor for controlling the opening and closing of the transmission wheels. The drying mechanism comprises extrusion plates located on the upper and lower sides of the composite polyester fibers and a cylinder for controlling the movement of the extrusion plates. The extrusion plates comprise a heating chamber and a drying plate. The drying plate is installed at the heating end of the heating chamber, and a number of heating devices are installed in the heating chamber.

[0005] In actual use, the aforementioned extrusion drying device only squeezes the polyester fibers upward and downward to complete the drying process, squeezing out water from the fibers. During the entire squeezing process, the polyester fibers are unable to move independently, which not only easily causes water vapor from subsequent drying to reattach to the interior of the polyester fibers, but also significantly reduces the drying efficiency of the drying device. Furthermore, the heating structure of the drying device directly contacts and squeezes the surface of the polyester fibers, which can easily damage the surface of the polyester fibers, affecting the final production quality of the polyester fibers. Utility Model Content

[0006] In order to improve the drying efficiency of a drying device for polyester fibers, the present application provides an extrusion drying device for polyester fiber production.

[0007] The present application provides an extrusion drying device for polyester fiber production, which adopts the following technical solutions:

[0008] Disclosed is an extrusion drying device for polyester fiber production, comprising a drying box body, wherein a feed port and a discharge port are respectively provided at the ends of the drying box body along its length direction, and a plurality of extrusion roller groups are distributed in the drying box body along the polyester fiber conveying direction. The extrusion roller groups include support rods rotatably arranged on the drying box body on both sides of the polyester fiber conveying direction, and pressure rollers sleeved on the support rods. The cross-section of the pressure rollers is cam-shaped, and the raised ends of the two pressure rollers facing away from the axis are arranged opposite to each other. The drying box body is provided with an adjustment component corresponding to each extrusion roller group for independently controlling the pressure roller gap.

[0009] By adopting the above technical solution, during the process of extrusion drying of polyester fibers by the drying device, the polyester fibers are drawn from the feed port into the gaps between several extrusion roller groups in the drying box, and are discharged from the discharge port after being extruded and dried by the extrusion roller groups. The gap between each extrusion roller group is independently adjusted by the adjustment component. The polyester fibers are subjected to a certain degree of extrusion when passing through each extrusion roller group. By gradually increasing the extrusion force, a more efficient drying effect is achieved, thereby improving the drying efficiency of the drying device for polyester fibers.

[0010] Optionally, each of the support rods is jointly passed through the side wall of the drying box with its end on the side, and a limit slide frame is provided on the outer side wall of the drying box along its own length direction, and the limit slide frame is located at the common symmetry center line of several extrusion roller groups, and the adjustment component includes a positioning block slidably arranged in the limit slide frame, a telescopic connecting rod connecting the positioning block and the corresponding support rod, and a positioning member for adjusting the sliding position of the positioning block, and one positioning block is provided for each extrusion roller group, one end of the telescopic connecting rod is fixedly set on the support rod, and the other end is hinged to the side wall of the positioning block away from the limit slide frame.

[0011] By adopting the above technical solution, a positioning member drives the positioning block to slide within the limited sliding frame. The moving positioning block drives the end of the telescopic connecting rod to move synchronously, causing the offset angle between the telescopic connecting rod and the support rod to change. The telescopic connecting rod then drives the two pressure rollers in the squeezing roller group to rotate relative to each other. Because the pressure rollers are arranged in a cam shape, the distance between the raised ends of the two pressure rollers facing away from the axis changes during rotation, achieving independent adjustment of the pressure roller gap. The independently arranged positioning members enable independent regulation of the gap between each pressure roller, improving the adaptability and efficiency of the polyester fiber drying process.

[0012] Optionally, the positioning member includes a rack fixedly arranged at the bottom of the limiting slide frame along the length direction of the limiting slide frame, and a driving wheel rotatably arranged in the limiting slide frame. The driving wheel is located in the limiting slide frame and is engaged with the rack. When the driving wheel rotates in the limiting slide frame, it is always in contact with the corresponding positioning block. A knob for manually rotating the driving wheel is provided on the side wall of the driving wheel away from the limiting slide frame.

[0013] By adopting this technical solution, manually turning the knob rotates the drive wheel, which, guided by the rack, moves within the limited sliding frame. As the drive wheel moves, it pushes the positioning block to slide within the limited frame, thereby achieving precise adjustment of the positioning block's position. The manually rotating drive wheel allows for independent, on-demand adjustment of the roller gap between each squeeze roller group, thereby controlling the drying effect of the polyester fiber and improving the drying device's flexibility and efficiency.

[0014] Optionally, the position-limiting sliding frame is provided with scale marks along its length direction.

[0015] By adopting the above technical solution, the setting of the scale mark facilitates intuitive adjustment and monitoring of the position of each positioning block, thereby accurately controlling the gap between the pressure rollers, improving the precise control of the pressure rollers in increasing the squeezing force of the polyester fibers step by step during the drying process, and improving the quality of the polyester fibers while achieving a more efficient drying effect.

[0016] Optionally, a hot air blower connected to the inner cavity is provided on the top of the drying box, and the hot air blower blows warm air toward the polyester fibers being transported.

[0017] By adopting the above technical solution, the hot air blower blows warm air toward the polyester fibers being transported, effectively improving the drying efficiency of the polyester fibers, while avoiding damage to the fiber surface caused by direct contact heating, thereby improving the production quality of the polyester fibers.

[0018] Optionally, a water collecting box is detachably provided at the bottom of the drying box, the inner bottom of the drying box is bucket-shaped, and a water outlet is provided at the center of the bucket-shaped inner bottom of the drying box, which is connected to the water collecting box, and a water pump is provided at the water outlet.

[0019] By adopting the above technical solution, the bucket-shaped inner bottom helps to collect water to the water outlet, and improves the efficiency of water discharge from the drying box through the water pump. Then, a detachable water collection box is used to collect the squeezed water and discharge it through the water outlet, reducing the possibility of water accumulation in the drying box, thereby improving the drying effect.

[0020] Optionally, a guide arc plate is provided on the inner top of the drying box, the arc center of the guide arc plate is located below the guide arc plate, and the center line of the arc center of the guide arc plate is arranged parallel to the conveying direction of the polyester fiber. The spacing between the two sides of the guide arc plate parallel to its own length direction exceeds the length dimension of the feed port, and the air outlet of the hot air blower is vertically penetrated by the guide arc plate.

[0021] By adopting the above technical solution, the design of the guide arc plate can not only effectively guide the warm air generated by the hot air blower to evenly cover the polyester fibers, avoiding the problem of uneven drying, but also can guide the water vapor rising from the warm air of the polyester fibers through the guide arc plate to fall into the bottom of the drying box and be collected by the water collection box, which not only improves the drying efficiency, but also avoids the possibility of water vapor infiltrating into the polyester fibers for the second time.

[0022] Optionally, a humidity sensor is provided at the discharge port of the drying box.

[0023] By adopting the above technical solution, the humidity sensor arranged at the discharge port of the drying box can monitor the moisture content of the polyester fiber after drying in real time, confirm whether the polyester fiber has reached the required degree of dryness, thereby improving the drying effect and reliability of the drying device.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. During the extrusion drying process of the polyester fiber in the drying device, the polyester fiber is drawn from the feed port into the gap between several extrusion rollers in the drying chamber. After being squeezed and dried by the extrusion rollers, it is discharged from the discharge port. The gap between each extrusion roller group is independently adjusted using an adjustment component. The polyester fiber is squeezed to a certain extent when passing through each extrusion roller group. By gradually increasing the squeezing force, a more efficient drying effect is achieved, thereby improving the drying efficiency of the drying device for the polyester fiber.

[0026] 2. The positioning member drives the positioning block to slide within the limited sliding frame. The movement of the positioning block drives the two pressure rollers in the squeeze roller group to rotate relative to each other through the telescopic connecting rod. Because the pressure rollers are arranged in a cam shape, the distance between the raised ends of the two pressure rollers facing away from the axis changes during rotation. The independently set positioning member enables independent adjustment of the gap between each pressure roller, improving the adaptability and efficiency of the polyester fiber drying process.

[0027] 3. The positioning member drives the positioning block to slide within the limited sliding frame. The moving positioning block drives the end of the telescopic connecting rod to move synchronously, causing the offset angle between the telescopic connecting rod and the support rod to change. The telescopic connecting rod then drives the two pressure rollers in the squeeze roller group to rotate relative to each other. Because the pressure rollers are arranged in a cam shape, the distance between the raised ends of the two pressure rollers facing away from the axis changes during rotation, allowing the pressure roller gap to be independently adjusted. The independently set positioning member allows independent regulation of the gap between each pressure roller, improving the adaptability and efficiency of the polyester fiber drying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2It is a cross-sectional view of the overall structure of an embodiment of the present application.

[0030] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0031] Description of reference numerals:

[0032] 1. Drying box; 11. Feed inlet; 12. Discharge outlet; 13. Water outlet; 2. Humidity sensor; 3. Squeeze roller assembly; 31. Support rod; 32. Press roller; 4. Adjustment assembly; 41. Positioning block; 42. Telescopic connecting rod; 43. Positioning piece; 431. Rack; 432. Drive wheel; 4321. Knob; 5. Hot air blower; 6. Water pump; 7. Water collecting box; 8. Limit slide frame; 81. Scale mark; 9. Guide arc plate. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 This application is described in further detail.

[0034] The embodiments of the present application disclose an extrusion drying device for producing polyester fibers.

[0035] Reference Figure 1 and Figure 2 An extrusion drying device for polyester fiber production includes a drying box 1, in which a feed port 11 and a discharge port 12 are respectively provided at the ends along the length direction of the drying box 1, and a humidity sensor 2 is fixedly provided on the side wall of the drying box 1 at the discharge port 12. A plurality of extrusion roller groups 3 are distributed in the drying box 1 along the conveying direction of the polyester fiber, and an adjustment component 4 is provided on the drying box 1 corresponding to each extrusion roller group 3. A hot air blower 5 connected to the inner cavity is fixedly provided on the top of the drying box 1. The inner bottom of the drying box 1 is bucket-shaped, and a water outlet 13 is provided at the center of the bucket of the inner bottom of the drying box 1. A water pump 6 is fixedly provided at the water outlet 13, and a water collecting box 7 is installed at the water outlet 13 at the bottom of the drying box 1 through a hook.

[0036] Reference Figure 1 and Figure 2The gap between each squeeze roller group 3 is independently adjusted by the adjustment assembly 4. Polyester fiber is drawn into the drying chamber 1 from the feed port 11. As it passes through each squeeze roller group 3, it is squeezed to a certain degree. After the squeezing force increases step by step, the dried polyester fiber is output from the discharge port 12 of the drying chamber 1. As the multiple squeeze roller groups 3 squeeze the polyester fiber step by step, a hot air blower 5 assists in drying by spraying high-temperature hot air onto the fibers during transport. Water squeezed out by the squeeze roller groups 3 falls into the bucket-shaped inner bottom, collecting at the water outlet 13. With the help of suction from the water pump 6, it is collected in the water collection box 7. Finally, the dried polyester fiber is tested for quality by the humidity sensor 2 at the discharge port 12.

[0037] Reference Figure 2 This embodiment uses four squeeze roller groups 3 as an example. These four squeeze roller groups 3 are evenly distributed within the drying chamber 1 along the polyester fiber conveying direction. The squeeze roller groups 3 include support rods 31 and pressure rollers 32. One support rod 31 is provided on each side of the polyester fiber conveying direction. Each support rod 31 is rotatably mounted on opposite side walls within the drying chamber 1, with one end extending out of the drying chamber 1. The pressure rollers 32 have a cam-shaped cross-section and are fixedly mounted on corresponding support rods 31. The raised ends of the two pressure rollers 32, facing away from the axis, are positioned opposite each other.

[0038] Reference Figure 1 and Figure 2 A limit slide frame 8 is fixedly provided on the outer wall of the drying box 1 along its own length direction. The limit slide frame 8 is located at the common symmetrical center line of the plurality of squeezing roller groups 3, and a scale mark 81 is electroplated on the limit slide frame 8 along its own length direction.

[0039] Reference Figure 3 The adjustment component 4 includes a positioning block 41, a telescopic link 42 and a positioning member 43. The positioning block 41 is slidably set in the limit sliding frame 8. A telescopic link 42 is provided for each support rod 31. One end of each telescopic link 42 is fixed on the end wall of the corresponding support rod 31, and the other end is hinged on the side wall of the positioning block 41 away from the limit sliding frame 8.

[0040] Reference Figure 3 The positioning member 43 includes a rack 431 and a drive wheel 432. The rack 431 is fixedly mounted on the inner bottom wall of the position-limiting slide frame 8 along its length. The drive wheel 432 is positioned within the position-limiting slide frame 8 and engages with the rack 431. One drive wheel 432 is rotatably mounted for each positioning block 41. During rotation, the drive wheel 432 always engages the corresponding positioning block 41. A knob 4321 is also fixedly mounted on the side wall of the drive wheel 432 facing away from the position-limiting slide frame 8 to facilitate manual rotation of the drive wheel 432.

[0041] Reference Figure 2 In order to avoid uneven drying of warm air and the possibility of water vapor entering the polyester fiber for the second time, a guide arc plate 9 is fixedly provided on the inner top of the drying box 1. The arc center of the guide arc plate 9 is located below itself, and the center line of the arc center of the guide arc plate 9 is parallel to the conveying direction of the polyester fiber. The distance between the two sides of the guide arc plate 9 parallel to its own length direction exceeds the length of the feed port 11, and the air outlet of the hot air blower 5 is vertically penetrated by the guide arc plate 9.

[0042] The operating principle of the extrusion drying device for polyester fiber production according to the embodiment of the present application is as follows: Before the drying device is in operation, the knob 4321 is manually rotated to rotate the drive wheel 432. The drive wheel 432 is then driven to move within the limit slide frame 8 under the guidance of the rack 431. During the movement, the drive wheel 432 pushes the positioning block 41 to slide within the limit frame. The moving positioning block 41 drives the end of the telescopic link 42 to move synchronously, causing the offset angle between the telescopic link 42 and the support rod 31 to change. The telescopic link 42 then drives the two pressure rollers 32 in the extrusion roller group 3 to rotate relative to each other. Because the pressure rollers 32 are arranged in a cam shape, the distance between the raised ends of the two pressure rollers 32 that are away from the axis changes during rotation. With the help of the scale mark 81, the gap between the pressure rollers 32 is adjusted one by one as needed.

[0043] After conditioning, the polyester fiber is drawn through feed port 11 and introduced into drying chamber 1. As it passes through each set of squeeze rollers 3, it is squeezed to a certain degree. With the squeeze force gradually increasing, the dried polyester fiber is output from discharge port 12 of drying chamber 1. As the several squeeze rollers 3 gradually squeeze the polyester fiber, a hot air blower 5 assists in drying by spraying high-temperature hot air onto the fibers as they are transported. Water squeezed out by the squeeze rollers 3 falls into the bucket-shaped inner bottom, collecting at outlet port 13. With the help of suction from a water pump 6, it is collected in a water collection box 7. Finally, the dried polyester fiber is tested for quality at discharge port 12 by a humidity sensor 2.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An extrusion drying device for polyester fiber production, characterized in that , comprising a drying box (1), wherein the drying box (1) is provided with a feed port (11) and a discharge port (12) at the ends along its length direction, wherein a plurality of squeezing roller groups (3) are distributed in the drying box (1) along the polyester fiber conveying direction, wherein the squeezing roller groups (3) comprise support rods (31) rotatably arranged on both sides of the drying box (1) in the polyester fiber conveying direction and pressure rollers (32) sleeved on the support rods (31), wherein the cross section of the pressure rollers (32) is cam-shaped, and the raised ends of the two pressure rollers (32) facing away from the axis are arranged opposite to each other, and an adjustment component (4) for independently regulating the gap between the pressure rollers (32) is provided on the drying box (1) corresponding to each squeezing roller group (3).

2. The extrusion drying device for polyester fiber production according to claim 1, characterized in that Each of the support rods (31) is provided with a side end portion thereof through the side wall of the drying box (1), and a limit slide frame (8) is provided on the outer side wall of the drying box (1) along its own length direction, and the limit slide frame (8) is located at the common symmetry center line of the plurality of squeezing roller groups (3), and the adjustment component (4) includes a positioning block (41) slidably provided in the limit slide frame (8), a telescopic connecting rod (42) connecting the positioning block (41) and the corresponding support rod (31), and a positioning member (43) for adjusting the sliding position of the positioning block (41), and one positioning block (41) is provided for each squeezing roller group (3), one end of the telescopic connecting rod (42) is fixedly provided on the support rod (31), and the other end is hinged on the side wall of the positioning block (41) away from the limit slide frame (8).

3. The extrusion drying device for polyester fiber production according to claim 2, characterized in that The positioning member (43) includes a rack (431) fixedly arranged at the bottom of the limiting sliding frame (8) along the length direction of the limiting sliding frame (8), and a driving wheel (432) rotatably arranged in the limiting sliding frame (8). The driving wheel (432) is located in the limiting sliding frame (8) and is engaged with the rack (431). When the driving wheel (432) rotates in the limiting sliding frame (8), it is always in contact with the corresponding positioning block (41). A knob (4321) is provided on the side wall of the driving wheel (432) away from the limiting sliding frame (8) to facilitate manual rotation of the driving wheel (432).

4. The extrusion drying device for polyester fiber production according to claim 2, characterized in that The position limiting sliding frame (8) is provided with a scale mark (81) along its own length direction.

5. The extrusion drying device for polyester fiber production according to claim 1, characterized in that A hot air blower (5) connected to the inner cavity is provided on the top of the drying box (1), and the hot air blower (5) blows warm air toward the polyester fibers being transported.

6. The extrusion drying device for polyester fiber production according to claim 5, characterized in that The bottom of the drying box (1) is detachably provided with a water collecting box (7), the inner bottom of the drying box (1) is arranged in a bucket shape, and a water outlet (13) is provided at the center of the bucket shape of the inner bottom of the drying box (1) and is connected to the water collecting box (7), and a water pump (6) is provided at the water outlet (13).

7. The extrusion drying device for polyester fiber production according to claim 6, characterized in that The inner top of the drying box (1) is provided with a guide arc plate (9), the arc center of the guide arc plate (9) is located below itself, and the center line of the arc center of the guide arc plate (9) is arranged parallel to the conveying direction of the polyester fiber, the distance between the two sides of the guide arc plate (9) parallel to its own length direction exceeds the length dimension of the feed port (11), and the air outlet of the hot air blower (5) is vertically penetrated by the guide arc plate (9).

8. The extrusion drying device for polyester fiber production according to claim 1, characterized in that A humidity sensor (2) is provided at the discharge port (12) of the drying box (1).

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