Drying device for high-variation shaping polyester staple fibers for automobile wheel cover

Abstract

The utility model discloses a drying device for high-variation shaping polyester staple fibers for an automobile wheel cover, which comprises a transmission machine, a drying machine, a drying machine, a drying machine, a drying machine and a drying machine, and is characterized in that the transmission machine comprises a transmission frame, and a transmission belt and a driving unit are arranged on the transmission frame; the drying assembly comprises a drying channel and a heating piece; the extrusion assembly comprises a rotating frame and an extrusion unit, and the extrusion unit comprises a sliding frame which is axially fixed to the rotating frame and is in radial sliding connection with the rotating frame and an extrusion roller which rotates on the sliding frame around the axis of the extrusion roller; and the driving unit is in driving connection with the rotating frame through the transmission assembly. According to the drying device for the high-variation shaping polyester staple fibers for the automobile wheel cover, the driving unit drives the conveying belt to rotate to achieve material conveying, the transmission assembly drives the rotating frame to rotate synchronously, meanwhile, the sliding frame rotates and slides, the extrusion rollers can act on fiber tows on the conveying belt, and the drying efficiency is improved. The moisture in the fiber tows is reduced, the number of driving sources in the device is reduced, and the structure can be simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fiber production, especially to a drying device for high-variability setting polyester staple fiber for automobile wheel covers. BACKGROUND

[0002] The high-variability setting staple fiber for automobile wheel covers is a polyester staple fiber material designed and produced for the specific application field of automobile wheel covers, uses polyester as the main raw material, is prepared through specific spinning and cutting processes, and has high strength, high heat resistance, high variability setting, and good sound absorption performance.

[0003] In the above fiber spinning production process, water and solvent in the fiber need to be removed through heating and drying to ensure the stability and quality of the fiber in subsequent processing. In the prior art, a drying device for polyester product regenerated PET fiber tows is disclosed in Chinese Utility Model Patent No. CN222027345U, which pre-presses the fiber tows on the transmission surface through the extrusion assembly, so that part of the water in the fiber tows is squeezed out, reducing the amount of hot air required for the drying assembly to dry the fiber tows, saving energy consumption, improving the drying effect on the fiber tows, and improving the drying efficiency.

[0004] However, in the extrusion assembly used in the above drying device, the pressure of the compression rollers on the transmission surface is controlled by the telescopic assembly, and the rotation of the compression rollers is controlled by the rotating device, i.e., two driving sources are required, resulting in an increase in the number of device driving sources, which in turn makes the device structure complex, and the height positions of the compression rollers are the same, resulting in consistent extrusion force of the compression rollers on the fiber tows, and the amount of water squeezed out is limited. Furthermore, in the above drying device, the air introduced by the heating fan is heated by the heating element, so that the air passes through the transmission surface from top to bottom to heat exchange with the fiber tows. For the fiber tows, when the fiber tows pass through the drying channel, the heating is mainly concentrated at the top and less at the bottom, resulting in uneven heating of the fiber tows, which in turn affects the drying efficiency.

[0005] Therefore, it is necessary to improve the drying device for fiber tows in the prior art. UTILITY MODEL CONTENTS

[0006] The utility model aims to overcome the defects in the prior art, and provides a drying device for high-variability setting polyester staple fiber for automobile wheel covers, which reduces driving sources, simplifies the structure, ensures uniform heating of the fiber tows, and improves the drying efficiency.

[0007] To achieve the above technical effects, the technical scheme of the utility model is as follows: a drying device for high-variability setting polyester staple fiber for automobile wheel covers, comprising:

[0008] The transmission machine comprises a transmission frame, a transmission belt and a driving unit, the driving unit drives the transmission belt to rotate along the circumferential direction of the transmission belt, the upper layer of the transmission belt is horizontal, and the transmission belt is densely provided with through holes;

[0009] The drying assembly comprises a drying channel and a heating member, the upper layer of the transmission belt penetrates through the drying channel, and the heating member is used for heating the fiber tows entering the drying channel along with the transmission belt;

[0010] The extrusion assembly is arranged between the feeding section of the transmission belt and the drying channel, the extrusion assembly comprises a rotating frame and an extrusion unit arranged on the rotating frame, the rotating frame rotates on the transmission frame and the rotating axis extends above the transmission belt along the width direction of the transmission belt, the extrusion unit is used for extruding the fiber tows on the transmission belt, the extrusion unit comprises a sliding frame axially fixed and radially slidingly connected with the rotating frame and an extrusion roller rotating on the sliding frame along the axis thereof, and the axis of the extrusion roller is parallel to the rotating axis of the rotating frame;

[0011] The driving unit is drivingly connected with the rotating frame through the transmission assembly to drive the rotating frame to rotate.

[0012] Preferably, in order to increase the contact frequency of the extrusion unit and the fiber tows and increase the water extrusion effect, the extrusion unit is arranged in at least two and arranged in a ring array with the rotating axis of the rotating frame as the center line.

[0013] Preferably, in order to strengthen the water extrusion effect, the extrusion unit further comprises an elastic member arranged between the rotating frame and the sliding frame, the elastic member exerts pressure on the sliding frame, so that the sliding frame has a tendency to move away from the rotating axis of the rotating frame.

[0014] Preferably, in order to improve the water extrusion effect, the compression spring is provided with a protective sleeve with adjustable length, and the two ends of the protective sleeve are closed.

[0015] Preferably, in order to realize the adjustable length of the axis of the protective sleeve, the protective sleeve comprises an outer sleeve and an inner sleeve, one of the outer sleeve and the inner sleeve is fixedly connected with the sliding frame, and the other is fixedly connected with the rotating frame, and the circumferential inner wall of the outer sleeve is sealingly matched with the circumferential outer edge of the inner sleeve.

[0016] Preferably, in order to realize the stable transmission of the fiber tows, the rotating direction of the rotating frame is opposite to the rotating direction of the transmission belt.

[0017] Preferably, in order to drive the rotating frame to rotate through the transmission assembly, the driving unit comprises a driving motor and two rotating rollers, the two rotating rollers rotate around their own axis of symmetry on the transmission frame and are drivingly connected through the transmission belt, and the driving motor is drivingly connected with one of the rotating rollers; the transmission assembly comprises a synchronous belt, a driving wheel, a driven wheel, a driving gear and a transmission gear, the driving gear is coaxially connected with one of the rotating rollers and is engaged with the driven gear, the driven gear is coaxially connected with the driving wheel, the driving wheel is drivingly connected with the driven wheel through the synchronous belt, and the driven wheel is connected with the rotating frame.

[0018] Preferably, in order to improve the heating effect on the fiber tows, the heating member comprises an upper infrared lamp arranged on the upper layer of the transmission belt and a lower infrared lamp arranged between the upper layer of the transmission belt and the bottom wall of the drying channel.

[0019] Preferably, in order to avoid the moisture remaining in the drying channel, the drying assembly further comprises an air suction pump, the input end of the air suction pump is in communication with the inner cavity of the drying channel, and the output end is connected with an electronic dehumidifier.

[0020] Preferably, in order to facilitate detection of the moisture concentration in the drying channel, a humidity sensor is arranged in the drying channel.

[0021] In summary, compared with the prior art, the drying device for the high-variation shaping polyester staple fiber for automobile wheel covers of the present application can realize material transmission by driving the transmission belt to rotate through the driving unit, and simultaneously drive the rotating frame to rotate synchronously through the transmission assembly, and the sliding frame rotates and slides, so that the extrusion roller can act on the fiber tows on the transmission belt, the moisture in the fiber tows is reduced, the number of driving sources in the device is reduced, and the structure is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the present application;

[0023] Figure 2 is Figure 1 a cross-sectional structural schematic view of the present application;

[0024] Figure 3 is a structural schematic view of the drying assembly of the present application;

[0025] Figure 4 is Figure 3 an exploded schematic view of the present application;

[0026] Figure 5 is a structural schematic view of the transmission assembly of the present application;

[0027] Figure 6 is Figure 5 an exploded schematic view of the present application;

[0028] Figure 7 is the structural schematic view of the extrusion assembly of the utility model;

[0029] Figure 8 is Figure 7 the explosion schematic view of;

[0030] Figure 9 is the structural schematic view of the transmission assembly of the utility model;

[0031] Figure 10 is Figure 9 the explosion schematic view of;

[0032] In the figure: 1, conveyor;11, transmission frame;111, side frame;112, bottom frame;12, transmission belt;121, through hole;13, drive unit;131, drive motor;132, rotating roller;2, drying assembly;21, drying channel;211, drying shell;212, bottom plate;213, upper baffle;214, lower baffle;22, heating element;221, upper infrared lamp;222, lower infrared lamp;23, air suction pump;24, electronic dehumidifier;25, humidity sensor;3, extrusion assembly;31, rotating frame;311, rotating pipe;312, connecting seat;313, guide bar;314, sliding port;32, extrusion unit;321, sliding frame;322, extrusion roller;323, elastic element;324, outer sleeve;325, inner sleeve;326, sliding block;33, fixed frame;331, U-shaped frame;332, fixed shaft;4, transmission assembly;41, synchronous belt;42, driving wheel;43, driven wheel;44, drive gear;45, transmission gear;46, support;5, support assembly;51, support roller;52, water collecting groove;53, drain pipe;54, drain valve. DETAILED DESCRIPTION

[0033] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0034] As Figures 1-10 shown, the drying device for automobile wheel cover with high variability and shaping polyester staple fiber of the utility model, including:

[0035] Conveyor 1, conveyor 1 includes transmission frame 11, transmission frame 11 is provided with transmission belt 12 and drive unit 13, drive unit 13 drives transmission belt 12 to rotate along the circumference of itself, the upper layer of transmission belt 12 is horizontal, and transmission belt 12 is densely provided with through hole 121;

[0036] The drying assembly 2 comprises a drying channel 21 and a heating piece 22, the upper layer of the conveying belt 12 penetrates through the drying channel 21, and the heating piece 22 is used for heating the fiber tows entering the drying channel 21 along with the conveying belt 12;

[0037] The extrusion assembly 3 is arranged between the feeding section of the conveying belt 12 and the drying channel 21, the extrusion assembly 3 comprises a rotating frame 31 and an extrusion unit 32 arranged on the rotating frame 31, the rotating frame 31 rotates on the conveying frame 11 and the rotating axis extends above the conveying belt 12 along the width direction of the conveying belt 12, the extrusion unit 32 is used for extruding the fiber tows on the conveying belt 12, the extrusion unit 32 comprises a sliding frame 321 axially fixed and radially slidingly connected with the rotating frame 31 and an extrusion roller 322 rotating on the sliding frame 321 along the axis thereof, and the axis of the extrusion roller 322 is parallel to the rotating axis of the rotating frame 31;

[0038] The transmission assembly 4 is drivingly connected between the driving unit 13 and the rotating frame 31, so that the rotating frame 31 is driven to rotate.

[0039] During operation of the device, the driving unit 13 of the conveying machine 1 is started to drive the conveying belt 12 to rotate along the circumferential direction thereof, the fiber tows to be dried are placed on the input end of the upper layer of the conveying belt 12, before the fiber tows are driven by the conveying belt 12 to enter the drying channel 21, the driving unit 13 acts on the rotating frame 31 through the transmission assembly 4, so that the rotating frame 31 drives the extrusion unit 32 to rotate, and at the same time, the sliding frame 321 in the extrusion unit 32 slides radially relative to the rotating frame 31, the distance between the extrusion roller 322 and the rotating axis of the rotating frame 31 is changed, so that the extrusion roller 322 can act on the surface of the fiber tows to extrude most of the water in the fiber tows and discharge the water through the through holes 121 on the conveying belt 12.

[0040] After the fiber tows are extruded to remove most of the water, the fiber tows enter the drying channel 21, the heating piece 22 in the drying channel 21 heats the fiber tows, so that the remaining water in the fiber tows is evaporated by heat, the drying of the fiber tows is realized, and after the drying is completed, the dried fiber tows can be received at the output end of the conveying belt 12 through the drying channel 21.

[0041] In the utility model, through the transmission assembly 4, the driving unit 13 can act on the rotating frame 31, so that the sliding frame 321 in the extrusion unit 32 can slide while the extrusion unit 32 rotates, the position of the extrusion roller 322 is changed, the extrusion of the fiber tows is realized, most of the water in the fiber tows is extruded, the heating amount of the heating piece 22 for heating the fiber tows to dry the water in the subsequent process is reduced, a plurality of driving sources are not needed, the number of driving sources is reduced, and the structure is simplified.

[0042] The specific structure of the conveyor 1 is as shown in Figure 5 and Figure 6 The cross-sectional shape of the conveying belt 12 is horizontally waist-round, and the conveying frame 11 comprises side frames 111 arranged on both sides of the conveying belt 12, and the bottom portions of the two side frames 111 are fixedly connected through a bottom frame 112.

[0043] The driving unit 13 comprises a driving motor 131 and two rotating rollers 132, the axial directions of the two rotating rollers 132 extend along the width direction of the conveying belt 12, the two rotating rollers 132 rotate around their own axial lines between the two side frames 111, and the driving motor 131 is fixed on the side frame 111 and is drivingly connected with one of the rotating rollers 132. In this way, when the driving motor 131 operates, one of the rotating rollers 132 is driven to rotate, and through the cooperation of the other rotating roller 132, the conveying belt 12 rotates along its own circumferential direction, and the transmission of the fiber tow material is realized.

[0044] Further improvement is that the heating element 22 comprises an upper infrared lamp 221 arranged on the upper layer of the conveying belt 12 and a lower infrared lamp 222 arranged between the upper layer of the conveying belt 12 and the bottom wall of the drying channel 21; the drying assembly 2 further comprises an air suction pump 23, the input end of the air suction pump 23 is communicated with the inner cavity of the drying channel 21, and the output end is connected with an electronic dehumidifier 24; the drying channel 21 is provided with a humidity sensor 25.

[0045] The specific structure of the drying assembly 2 is as shown in Figure 3 and Figure 4 The drying channel 21 comprises a drying shell 211 extending along the conveying direction of the conveying belt 12, the cross section of the drying shell 211 is inverted U-shaped, a horizontal bottom plate 212 is fixed in the drying shell 211, the two ends of the bottom plate 212 are flush with the two ends of the drying shell 211, the two sides of the bottom plate 212 are fixedly connected with the two side walls of the drying shell 211, the bottom plate 212 is located on the inner side of the conveying belt 12, the upper infrared lamp 221 and the lower infrared lamp 222 are equally spaced along the conveying direction of the conveying belt 12, the upper infrared lamp 221 is located above the conveying belt 12, the lower infrared lamp 222 is located on the inner side of the conveying belt 12, and the two ends of the upper infrared lamp 221 and the lower infrared lamp 222 respectively penetrate through the two side frames 111 and are fixedly connected with the two side walls of the drying shell 211. After adopting the structure, the upper infrared lamp 221 heats the top of the fiber tow on the conveying surface of the conveying belt 12, the lower infrared lamp 222 can heat the bottom of the fiber tow through the through hole 121, and the upper layer of the conveying belt 12 can also be heated, and the bottom of the fiber tow is heated through the heat conduction of the upper layer of the conveying belt 12. In this way, the fiber tow can be heated from above and below respectively during heating, the uniformity of the heating of the fiber tow is ensured, and the heating efficiency is also improved.

[0046] In order to reduce the heat loss during the heating process of the drying assembly 2, the upper baffle 213 is arranged above the upper layer of the conveying belt 12, and the lower baffle 214 is arranged between the upper layer and the lower layer of the conveying belt 12, so that the heat loss in the drying shell 211 can be reduced through the upper baffle 213 and the lower baffle 214.

[0047] The humidity sensor 25 is fixed to the top of the drying shell 211, and the air pump 23 and the electronic dehumidifier 24 are both fixed to the top of the drying shell 211. The humidity sensor 25 can detect the humidity of the air in the drying shell 211. When the humidity increases, the air pump 23 is started to extract the moisture in the drying shell 211, so that the external cold air is supplemented into the drying shell 211, and the moisture is introduced into the electronic dehumidifier 24. After dehumidification by the electronic dehumidifier 24, the air is discharged.

[0048] Further improvement is that the extrusion unit 32 is arranged in at least two, and is arranged in a ring array around the rotation axis of the rotating frame 31 as the center line.

[0049] With the above design, the number of extrusion units 32 is increased, and the contact frequency of the extrusion units 32 with the fiber tows on the conveying belt 12 is increased, so that the extrusion effect on the fiber tows is strengthened, and more moisture can be squeezed out of the fiber tows during the operation of the extrusion assembly 3, so as to reduce the power consumption of the subsequent drying assembly 2.

[0050] Further improvement is that the extrusion unit 32 further comprises an elastic member 323 arranged between the rotating frame 31 and the sliding frame 321, the elastic member 323 applies pressure to the sliding frame 321 to make the sliding frame 321 tend to move away from the rotation axis of the rotating frame 31; the elastic member 323 is a compression spring; a protective sleeve with adjustable length is arranged on the compression spring, and the two ends of the protective sleeve are closed; the protective sleeve comprises an outer sleeve tube 324 and an inner sleeve tube 325, one of the outer sleeve tube 324 and the inner sleeve tube 325 is fixedly connected with the sliding frame 321, and the other is fixedly connected with the rotating frame 31, and the circumferential inner wall of the outer sleeve tube 324 is sealingly fitted with the circumferential outer edge of the inner sleeve tube 325.

[0051] The specific structure of the extrusion assembly 3 is as follows Figure 7 and Figure 8As shown, the pressing assembly 3 further comprises a fixing frame 33, the fixing frame 33 comprises a horizontal U-shaped frame 331 fixed on the upper baffle 213, two ends of the U-shaped frame 331 are fixedly connected through fixing shafts 332 which are parallel to the width direction of the conveying belt 12, the rotating frame 31 comprises a rotating tube 311 sleeved on the fixing shafts 332, four guide bars 313 are annularly arranged on two ends of the rotating tube 311, the length direction of the guide bars 313 is perpendicular to the axial direction of the rotating tube 311, the guide bars 313 are provided with sliding grooves 314 extending along the length direction of the guide bars 313, four pairs of mounting units are annularly arranged on the circumferential outer edge of the rotating tube 311, the four pairs of mounting units correspond to the four guide bars 313 one by one, each mounting unit comprises two connecting seats 312 arranged along the axial direction of the rotating tube 311, the pressing unit 32 is provided with four pressing units corresponding to the four pairs of mounting units, in the pressing unit 32, the two ends of the sliding frame 321 are fixedly provided with sliding blocks 326 which are in sliding fit with the sliding grooves 314 on the two guide bars 313, the inner sleeve 325 and the outer sleeve 324 are fixedly arranged on the connecting seats 312 and the sliding frame 321 respectively, the elastic member 323 is arranged on the inner side of the inner sleeve 325 and the outer sleeve 324, and the two ends of the elastic member 323 are connected with the sliding frame 321 and the connecting seat 312 respectively.

[0052] After the above structure is adopted, the rotating tube 311 of the rotating frame 31 is conveniently rotated around the axis thereof through the fixing shafts 332 on the fixing frame 33, in the rotating process of the rotating frame 31, the elastic member 323 of the compression spring acts on the sliding frame 321, the sliding frame 321 has a tendency to move away from the axis of the rotating tube 311 through the sliding fit of the sliding grooves 314 and the sliding blocks 326, and the protection sleeve composed of the inner sleeve 325 and the outer sleeve 324 can protect the elastic member 323 and avoid the rusting of the elastic member 323 caused by the influence of moisture.

[0053] Further improvement is that the rotating direction of the rotating frame 31 is opposite to the rotating direction of the conveying belt 12, in this way, the fiber tows on the upper layer of the conveying belt 12 can also be acted on by the pressing roller 322 through the rotating of the rotating frame 31, so as to promote the stable transmission of the fiber tows.

[0054] Further improvement is that the transmission assembly 4 comprises a synchronous belt 41, a driving wheel 42, a driven wheel 43, a driving gear 44 and a transmission gear 45, the driving gear 44 is coaxially connected with one of the rotating rollers 132 and is in meshing connection with the transmission gear 45, the transmission gear 45 is coaxially connected with the driving wheel 42, the driving wheel 42 is in transmission connection with the driven wheel 43 through the synchronous belt 41, and the driven wheel 43 is connected with the rotating frame 31.

[0055] Specifically, as shown in FIG. 1, Figure 1 , Figure 2 , Figure 9 and Figure 10As shown, the transmission assembly 4 is provided with two, respectively arranged on both sides of the transmission belt 12, and connected with both ends of the rotating roller 132 away from the driving motor 131, the transmission assembly 4 further comprises a bracket 46, one end of the bracket 46 is fixedly connected with the side frame 111, and the other end is drivingly connected with the driving wheel 42, in the transmission assembly 4, the driving gear 44 is fixed to the end of the rotating roller 132, the transmission gear 45 is coaxially fixedly connected with the driving wheel 42 and engaged with the driving gear 44, the driving wheel 42 is drivingly connected with the driven wheel 43 through the synchronous belt 41, and the driven wheel 43 is sleeved on the fixed shaft 332 and coaxially fixedly connected with the rotating pipe 311.

[0056] After the above structure is adopted, when the driving motor 131 drives the two rotating rollers 132 to rotate, the rotating roller 132 acts on the driving gear 44, so that the driving gear 44 rotates, and in turn drives the driven gear 34 to rotate, and the rotating direction of the driven gear 34 is opposite to that of the driving gear 44, so that the driving wheel 42 is driven to rotate, the driving wheel 42 drives the driven wheel 43 to rotate through the synchronous belt 41, so that the rotating pipe 311 coaxially fixedly connected with the driven wheel 43 rotates, and the rotating direction of the rotating pipe 311 is opposite to that of the transmission belt 12, so that the transmission and movement of the fiber tows are facilitated while the moisture of the fiber tows is squeezed out.

[0057] The support assembly 5 is further provided below the extrusion assembly 3, the support assembly 5 comprises a water collecting groove 52 located between the two side frames 111, between the upper layer and the lower layer of the transmission belt 12 and open at the top, the top of the water collecting groove 52 is provided with a supporting roller 51 extending in the width direction of the transmission belt 12 and rotating around the center line thereof, the supporting roller 51 abuts against the bottom surface of the upper layer of the transmission belt 12, the water collecting groove 52 is fixedly communicated with a drain pipe 53, and the drain pipe 53 is connected with a drain valve 54.

[0058] After the above structure is adopted, the upper layer of the transmission belt 12 can be supported by the supporting roller 51, so that it is prevented from being deformed by the extrusion of the extrusion roller 322, and the water falling from the through hole 121 of the fiber tows after being extruded can be received by the water collecting groove 52 below, and the water in the water collecting groove 52 can be conveniently discharged in time by regularly opening the drain valve 54.

[0059] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A drying device for high-variability setting polyester staple fiber for automobile wheel covers, characterized by, The utility model relates to a kind of drying machine for fiber, including: Transmission machine (1), the transmission machine (1) includes transmission frame (11), transmission belt (12) and drive unit (13) are provided on the transmission frame (11), the drive unit (13) drives the transmission belt (12) rotates along itself circumferential direction, the upper layer of the transmission belt (12) is horizontal, the transmission frame (11) is densely covered with through hole (111); Drying assembly (2), the drying assembly (2) includes drying channel (21) and heating piece (22), the upper layer of the transmission belt (12) penetrates drying channel (21), and the heating piece (22) is used to heat the fiber tow that enters drying channel (21) with the transmission belt (12) rotation; Extrusion assembly (3), the extrusion assembly (3) is arranged between the feeding section of the transmission belt (12) and the drying channel (21), and the extrusion assembly (3) includes rotating frame (31) and extrusion unit (32) arranged on the rotating frame (31), the rotating frame (31) rotates on the transmission frame (11) and the rotation axis is extended above the transmission belt (12) along the width direction of the transmission belt (12), and the extrusion unit (32) is used to extrude the fiber tow on the transmission belt (12), the extrusion unit (32) includes sliding frame (321) axially fixed and radially slidingly connected with the rotating frame (31) and extrusion roller (322) rotating on the sliding frame (321) around its axis, and the axis of the extrusion roller (322) is parallel to the rotation axis of the rotating frame (31); Transmission assembly (4), the drive unit (13) is drivingly connected with the rotating frame (31) by the transmission assembly (4) to drive the rotating frame (31) to rotate.

2. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 1, characterized in that: The extrusion unit (32) is arranged at least two, and is arranged in a ring array with the rotation axis of the rotating frame (31) as the center line.

3. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 1, characterized in that: The extrusion unit (32) further includes elastic member (323) arranged between the rotating frame (31) and the sliding frame (321), the elastic member (323) is pressed on the sliding frame (321), so that the sliding frame (321) generates a trend of moving away from the rotation axis of the rotating frame (31).

4. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 3, characterized in that: The elastic member (323) is a compression spring, and a protective sleeve with adjustable length is arranged on the compression spring, and both ends of the protective sleeve are closed.

5. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 4, characterized in that: The protective sleeve includes an outer sleeve tube (324) and an inner sleeve tube (325), one of the outer sleeve tube (324) and the inner sleeve tube (325) is fixedly connected with the sliding frame (321), and the other is fixedly connected with the rotating frame (31), and the circumferential inner wall of the outer sleeve tube (324) is sealingly fitted with the circumferential outer edge of the inner sleeve tube (325).

6. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 1, characterized in that: The rotating direction of the rotating frame (31) is opposite to the rotating direction of the transmission belt (12).

7. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 6, characterized in that: The driving unit (13) comprises a driving motor (131) and two rotating rollers (132), the two rotating rollers (132) are rotated on the transmission frame (11) around their own axis and are drivingly connected through the transmission belt (12), the driving motor (131) is drivingly connected with one of the rotating rollers (132); the transmission assembly (4) comprises a synchronous belt (41), a driving wheel (42), a driven wheel (43), a driving gear (44) and a transmission gear (45), the driving gear (44) is coaxially connected with one of the rotating rollers (132) and is engaged with the transmission gear (45), the transmission gear (45) is coaxially connected with the driving wheel (42), the driving wheel (42) is drivingly connected with the driven wheel (43) through the synchronous belt (41), and the driven wheel (43) is connected with the rotating frame (31).

8. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 1, characterized in that: The heating piece (22) comprises upper infrared lamps (221) arranged on the upper layer of the transmission belt (12) and lower infrared lamps (222) arranged between the upper layer of the transmission belt (12) and the bottom wall of the drying channel (21).

9. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 8, characterized in that: The drying assembly (2) further comprises an air suction pump (23), an input end of the air suction pump (23) is communicated with the inner cavity of the drying channel (21), and an output end is connected with an electronic dehumidifier (24).

10. The drying device for high variability setting polyester staple fiber for automobile wheel covers according to claim 8, characterized in that: A humidity sensor (25) is arranged in the drying channel (21).

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