A heat recovery device for recovering waste heat from a setting machine

Abstract

The present application relates to setting machine technical field, especially to a kind of heat recovery device for recycling setting machine waste heat, including machine body, high-temperature heating chamber is installed on machine body, heat exchanger is connected at the top of high-temperature heating chamber by negative pressure equipment, adjusting frame is slidably matched in high-temperature heating chamber, driving assembly is rotatably connected on adjusting frame, adjusting seat is provided on driving assembly, transmission assembly is rotatably connected in penetration on adjusting seat, pressure gas seat is fixedly connected at the bottom of adjusting seat, pressure gas assembly is slidably matched in pressure gas seat, adaptive cover is installed at the bottom of pressure gas seat, by setting adaptive cover in high-temperature heating chamber and the shape of fabric pattern is adapted, it can cover at fabric pattern, then using the pressure gas assembly in pressure gas seat, high-temperature hot air in high-temperature heating chamber can be quickly pumped, improve hot air pressure, can direct to thick pattern place transport high-pressure hot air flow, promote hot air to fully infiltrate pattern stacking yarn gap, solve the problem that thick pattern is not enough, setting is not transparent.

Description

Technical Field

[0001] This invention relates to the field of stenter technology, and in particular to a heat recovery device for recovering waste heat from stenters. Background Technology

[0002] The setting machine is a core piece of equipment in textile dyeing and finishing. It uses high-temperature hot air and steam as heat sources, circulating heat through an oven, and conveying the fabric via chains and rollers. Equipped with a stretching and tension adjustment structure, it heats and stretches chemical fibers and knitted fabric fibers to release internal stress, stabilizing the fabric width, shrinkage rate, and smoothness. It can be used to set various special fabrics such as ordinary plain fabrics, embossed knitted patterns, and centrally perforated fabrics. Some models are equipped with optimized structures such as waste heat recovery, local supplemental heating air, and micro-vibration auxiliary heating to solve problems such as uneven heating of thick and thin fabrics and incomplete pattern setting. It is widely used in clothing, home textiles, and industrial fabric processing, and also has the functions of fabric shaping, drying, and size setting.

[0003] Existing setting machines use high-temperature hot air to heat the fabric. However, some fabrics have knitted patterns, which cause differences in thickness between the patterned areas and other parts of the fabric. Existing setting machines cannot easily process the thicker parts of the pattern separately. When thick and thin fabrics pass through simultaneously, the hot air cannot fully penetrate the thick areas of the pattern formed by the stacked yarns, which can easily lead to insufficient heating inside the pattern and incomplete setting. On the other hand, excessive hot air can cause color differences in thin-based fabrics, affecting the setting quality of the fabric.

[0004] In summary, the existing technology lacks a technique for separately hot-air setting the back area of ​​the fabric pattern. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by proposing a heat recovery device for recovering waste heat from a stenter.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a heat recovery device for recovering waste heat from a stenter, comprising a body, a high-temperature heating chamber installed on the body, a heat exchanger connected to the top of the high-temperature heating chamber via a negative pressure device, an adjusting frame slidably fitted inside the high-temperature heating chamber, a driving assembly rotatably connected to the adjusting frame, an adjusting seat provided on the driving assembly, a transmission assembly rotatably connected through the adjusting seat, a pressure seat fixedly connected to the bottom of the adjusting seat, a pressure assembly slidably fitted inside the pressure seat, an adapter cover installed at the bottom of the pressure seat, the pressure assembly including a piston plate, the outer wall of the piston plate slidably fitted with the inner wall of the pressure seat, a connecting rod assembly rotatably connected to the top of the piston plate, the top of the connecting rod assembly rotatably connected to the inner wall of the pressure seat, and sliding grooves provided on both sides of the top of the connecting rod assembly.

[0007] Preferably, one end of the adjusting frame is fixedly connected to a slide block, the slide block is slidably fitted with the inner wall of the high-temperature heating chamber, a lead screw is threaded through the slide block, one end of the lead screw extends through the inner wall of the high-temperature heating chamber to the outside and is fixedly connected to a motor, the motor being fixedly connected to the outer wall of the high-temperature heating chamber.

[0008] Preferably, the drive assembly includes a second lead screw, both ends of which are rotatably connected to the inner wall of the adjustment frame. A second motor is fixedly connected to one end of the second lead screw, which is also fixedly connected to the inner wall of the adjustment frame. An electric actuator is fixedly connected to the other end of the second lead screw. A drive wheel is fixedly connected to the output end of the electric actuator. A driven wheel is meshed and driven on one side of the drive wheel. A transmission rod is fixedly connected to one side of the driven wheel. The other end of the transmission rod is rotatably connected through the inner wall of the adjustment frame. The outer wall of the second lead screw is threaded through the adjustment seat.

[0009] Preferably, the transmission assembly includes a transmission sleeve, the outer wall of the transmission sleeve being rotatably connected to the adjusting seat, the inner wall of the transmission sleeve being slidably fitted to the outer wall of the transmission rod, a brush sleeve being fixedly connected to one end of the outer wall of the transmission sleeve, and a transmission disc being fixedly connected to the other end of the outer wall of the transmission sleeve, the transmission disc having an annular groove.

[0010] Preferably, the air compressor assembly further includes a sliding rod, which is slidably connected to the top of the air compressor seat. A guide rod is fixedly connected to one side of the top of the sliding rod, and the outer wall of the other end of the guide rod is slidably connected to the inner wall of the annular groove. Push shafts are fixedly connected to both sides of the bottom of the sliding rod, and the outer wall of the push shaft is slidably connected to the inner wall of the groove.

[0011] Preferably, an exhaust pipe is fixedly connected to the bottom end of the air compressor seat, an air inlet pipe is fixedly connected to the top end of one side of the air compressor seat, a filter screen is fixedly connected to the top end of the air inlet pipe, the outer wall of the filter screen is slidably in contact with the outer wall of the brush sleeve, and the outer wall of the air inlet pipe located inside the air compressor seat is slidably engaged with the piston plate.

[0012] Preferably, a spiral shaft is rotatably connected to the inner wall of the bottom end of the other side of the air compressor seat, a spiral sleeve is slidably fitted on the outer wall of the spiral shaft, the spiral sleeve is fixedly connected to the piston plate, and an insertion hole is provided at the bottom end of the spiral shaft.

[0013] Preferably, a rubber ring is slidably fitted through the inner wall of the bottom end of the adapter cover, and multiple springs are fixedly connected between the top end of the rubber ring and the inner wall of the bottom end of the adapter cover. An air guide net is fixedly connected to the inner wall of the top end of the adapter cover, and an adapter port is opened through the top end of the adapter cover. The inner wall of the adapter port is movably inserted into the outer wall of the bottom end of the exhaust pipe.

[0014] Preferably, the top of the adapter cover and the bottom of the air compressor base are connected by bolts, a universal joint is rotatably connected to the inner wall of the adapter cover, the top of the universal joint passes through the inner wall of the top of the adapter cover and is fixedly connected to a connector, the connector is movably connected to the connector hole, and a multi-head rod is fixedly connected to the bottom of the universal joint.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting up an adapter cover in the high-temperature heating chamber that matches the fabric pattern, the cover can be placed over the fabric pattern. Then, the air compressor in the air compressor seat can quickly extract and compress the high-temperature hot air in the high-temperature heating chamber, increase the hot air pressure, and deliver high-pressure hot air to the thick pattern area in a directional manner. This allows the hot air to fully penetrate into the gaps between the stacked yarns of the pattern, effectively solving the problems of insufficient heating and poor shaping of thick patterns. It also balances the heating degree between the thick pattern area and the thin base fabric, avoids color difference in the same piece of fabric, and improves the fabric dimensional stability and finished product yield. By setting up a drive component, the adapter can be moved to follow the fabric. At the same time, the transmission component can drive the air compressor to ensure that the high-pressure hot air acts stably and continuously on the thickened pattern area. There is no need for frequent manual adjustment of the adapter position, which greatly improves the automation level and production continuity of the equipment. It evenly completes the deep heating and shaping of the pattern area, effectively improving problems such as opacity, color difference, deformation and wrinkling of the pattern. It is suitable for batch processing of multi-specification continuous fabrics, reduces manual intervention costs, and improves the quality of finished fabrics and production efficiency. By installing a multi-head rod inside the adapter cover, the piston plate of the air compressor moves up and down, driving the spiral shaft to rotate. This, in turn, drives the multi-head rod to rotate, continuously and gently tapping the thick areas of the fabric's knitted pattern. This loosens the stacked yarns to widen the hot air penetration channels. Combined with the air guide net inside the adapter cover, the high-pressure hot airflow is evenly distributed, allowing the high-temperature hot air to penetrate evenly and fully into the thick pattern for thorough shaping. This further improves the fabric's shaping uniformity, dimensional stability, and finished product yield. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a heat recovery device for recovering waste heat from a stenter according to the present invention; Figure 2 This is a partial cross-sectional view of the overall structure of a heat recovery device for recovering waste heat from a stenter, according to the present invention. Figure 3 This is a partial cross-sectional view of a heat recovery device for recovering waste heat from a stenter, according to the present invention. Figure 4 This is a partial cross-sectional schematic diagram of the adjusting frame structure of a heat recovery device for recovering waste heat from a stenter according to the present invention; Figure 5This is a schematic diagram of the drive assembly structure of a heat recovery device for recovering waste heat from a stenter machine according to the present invention; Figure 6 This is a partial cross-sectional schematic diagram of the transmission components and other structures of a heat recovery device for recovering waste heat from a stenter, according to the present invention. Figure 7 This is a schematic diagram of the air compressor assembly structure of a heat recovery device for recovering waste heat from a stenter machine according to the present invention; Figure 8 This is a partial cross-sectional view of the air seat structure of a heat recovery device for recovering waste heat from a stenter, according to the present invention. Figure 9 This is a partial cross-sectional schematic diagram of the adapter cover structure of a heat recovery device for recovering waste heat from a stenter machine according to the present invention.

[0017] The diagram shows: 1. Machine body; 2. High-temperature heating chamber; 3. Heat exchanger; 4. Adjusting frame; 5. Drive assembly; 6. Adjusting seat; 7. Transmission assembly; 8. Compressor seat; 9. Compressor assembly; 10. Adapter cover; 401. Slide; 402. Lead screw one; 501. Lead screw two; 502. Transmission rod; 503. Electric actuator; 504. Drive wheel; 505. Driven wheel; 701. Transmission sleeve; 702. Brush sleeve; 703. Transmission disc. 704, Annular groove; 901, Piston plate; 902, Connecting rod assembly; 903, Slide groove; 904, Sliding rod; 905, Guide rod; 906, Push shaft; 801, Exhaust pipe; 802, Intake pipe; 803, Filter screen; 804, Spiral shaft; 805, Spiral sleeve; 806, Insertion hole; 1001, Rubber ring; 1002, Spring; 1003, Air guide mesh; 1004, Insertion connector; 1005, Multi-ended rod. Detailed Implementation

[0018] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0019] like Figures 1-9The heat recovery device shown includes a body 1, a high-temperature heating chamber 2 installed on the body 1, a heat exchanger 3 connected to the top of the high-temperature heating chamber 2 via a negative pressure device, an adjusting frame 4 slidably fitted inside the high-temperature heating chamber 2, a drive assembly 5 rotatably connected to the adjusting frame 4, an adjusting seat 6 installed on the drive assembly 5, a transmission assembly 7 rotatably connected through the adjusting seat 6, a pressure seat 8 fixedly connected to the bottom of the adjusting seat 6, a pressure assembly 9 slidably fitted inside the pressure seat 8, an adapter cover 10 installed at the bottom of the pressure seat 8, the pressure assembly 9 includes a piston plate 901, the outer wall of the piston plate 901 slidably fitted with the inner wall of the pressure seat 8, a connecting rod assembly 902 rotatably connected to the top of the piston plate 901, the top of the connecting rod assembly 902 rotatably connected to the inner wall of the pressure seat 8, and sliding grooves 903 are provided on both sides of the top of the connecting rod assembly 902. Heat exchanger 3 uses negative pressure equipment to extract high-temperature waste heat from the high-temperature heating chamber 2, realizing waste heat collection, heat exchange, and recycling, effectively reducing equipment energy consumption and improving energy utilization.

[0020] By setting an adapter cover 10 that matches the fabric pattern shape inside the high-temperature heating chamber 2, the cover can be placed over the fabric pattern. Then, the high-temperature hot air inside the high-temperature heating chamber 2 can be quickly drawn and compressed using the air compressor 9 in the air compressor seat 8. This increases the hot air pressure and allows high-pressure hot air to be directed towards the thicker pattern area. This promotes the hot air to fully penetrate the gaps between the stacked yarns of the pattern, effectively solving the problems of insufficient heating and poor shaping of thick patterns. It also balances the heating degree between the thicker pattern area and the thinner base fabric, avoids color difference in the same fabric, and improves the fabric dimensional stability and finished product yield.

[0021] like Figure 4 As shown, one end of the adjusting frame 4 is fixedly connected to a slide block 401. The slide block 401 is slidably fitted with the inner wall of the high-temperature heating chamber 2. A lead screw 402 is threaded through the slide block 401. One end of the lead screw 402 extends through the inner wall of the high-temperature heating chamber 2 to the outside and is fixedly connected to a motor. The motor is fixedly connected to the outer wall of the high-temperature heating chamber 2.

[0022] Adjust the horizontal position of the adapter cover 10 using lead screw 402, aligning it with the pattern.

[0023] like Figure 5 As shown, the drive assembly 5 includes a second lead screw 501, both ends of which are rotatably connected to the inner wall of the adjustment frame 4. A second motor is fixedly connected to one end of the second lead screw 501, and the second motor is fixedly connected to the inner wall of the adjustment frame 4. An electric actuator 503 is fixedly connected to the other end of the second lead screw 501. A drive wheel 504 is fixedly connected to the output end of the electric actuator 503. A driven wheel 505 is meshed and driven on one side of the drive wheel 504. A transmission rod 502 is fixedly connected to one side of the driven wheel 505. The other end of the transmission rod 502 is rotatably connected to the inner wall of the adjustment frame 4. The outer wall of the second lead screw 501 is threadedly connected to the adjustment seat 6.

[0024] The lead screw 501 adjusts the longitudinal position of the adapter cover 10 and aligns it with the pattern. The electric push rod 503 ensures that the driving wheel 504 does not engage with the driven wheel 505 when the adapter cover 10 is reset.

[0025] like Figure 6 As shown, the transmission assembly 7 includes a transmission sleeve 701. The outer wall of the transmission sleeve 701 is rotatably connected to the adjusting seat 6. The inner wall of the transmission sleeve 701 is slidably fitted to the outer wall of the transmission rod 502. A brush sleeve 702 is fixedly connected to the outer wall of one end of the transmission sleeve 701. A transmission disc 703 is fixedly connected to the outer wall of the other end of the transmission sleeve 701. An annular groove 704 is provided on the transmission disc 703.

[0026] like Figure 7 As shown, the air compressor assembly 9 also includes a sliding rod 904, which is slidably connected to the top of the air compressor seat 8. A guide rod 905 is fixedly connected to one side of the top of the sliding rod 904, and the outer wall of the other end of the guide rod 905 is slidably connected to the inner wall of the annular groove 704. Push shafts 906 are fixedly connected to both sides of the bottom end of the sliding rod 904, and the outer wall of the push shaft 906 is slidably connected to the inner wall of the groove 903.

[0027] like Figure 8 As shown, an exhaust pipe 801 is fixedly connected to the bottom of the compressor seat 8, and an intake pipe 802 is fixedly connected to the top of one side of the compressor seat 8. A filter screen 803 is fixedly connected to the top of the intake pipe 802. The outer wall of the filter screen 803 is in sliding contact with the outer wall of the brush sleeve 702. The outer wall of the intake pipe 802 located inside the compressor seat 8 is in sliding cooperation with the piston plate 901.

[0028] The filter 803 filters out fibers that fall from the fabric, and works with the brush sleeve 702 to self-clean the fabric, ensuring airflow efficiency.

[0029] A spiral shaft 804 is rotatably connected to the inner wall of the bottom end of the other side of the air compressor seat 8. A spiral sleeve 805 is slidably fitted on the outer wall of the spiral shaft 804. The spiral sleeve 805 is fixedly connected to the piston plate 901. An insertion hole 806 is opened at the bottom end of the spiral shaft 804.

[0030] The insertion hole 806 at the bottom of the spiral shaft 804 can be precisely connected with the internal insertion connector 1004 of the adapter cover 10 to realize the downward transmission of power and provide stable power for the striking vibration of the multi-head rod 1005.

[0031] like Figure 9As shown, a rubber ring 1001 is slidably fitted through the inner wall of the bottom end of the adapter cover 10. Multiple springs 1002 are fixedly connected between the top of the rubber ring 1001 and the inner wall of the bottom end of the adapter cover 10. An air guide net 1003 is fixedly connected to the inner wall of the top end of the adapter cover 10. An adapter opening is provided through the top end of the adapter cover 10. The inner wall of the adapter opening is movably inserted into the outer wall of the bottom end of the exhaust pipe 801.

[0032] Spring 1002 allows rubber ring 1001 to adhere to the fabric, and adapter cover 10 can be disassembled and replaced according to the shape of the pattern.

[0033] The top of the adapter cover 10 is connected to the bottom of the air compressor seat 8 by bolts. A universal joint is rotatably connected to the inner wall of the adapter cover 10. The top of the universal joint passes through the inner wall of the top of the adapter cover 10 and is fixedly connected to a connector 1004. The connector 1004 is movably connected to the connector hole 806. A multi-head rod 1005 is fixedly connected to the bottom of the universal joint.

[0034] The multi-head rod 1005 rotates continuously with the universal joint, striking the thick areas of the fabric pattern, loosening the yarn structure, and widening the hot air penetration channels, fundamentally improving the uniformity and thoroughness of the thick pattern shaping.

[0035] Working principle: During the operation of the equipment, the waste heat generated by the machine body 1 is extracted and transported to the heat exchanger 3 through the negative pressure device at the top of the high-temperature heating chamber 2, so as to complete the waste heat recovery, heat exchange and recycling, and reduce the energy consumption of the equipment. According to the pattern position, shape and size of the fabric to be processed, the corresponding shape of the adapter cover 10 and the air pressure seat 8 are installed. Then, the motor one drives the lead screw one 402 to rotate, which drives the slide seat 401 and the adjustment frame 4 to slide laterally, so as to complete the precise lateral alignment of the adapter cover 10. Subsequently, the motor two drives the lead screw two 501 to rotate, which drives the adjustment seat 6 to slide longitudinally, so as to complete the longitudinal fine adjustment of the adapter cover 10, and achieve precise alignment of the pattern in all directions.

[0036] After alignment, the rubber ring 1001 at the bottom of the adapter cover 10 flexibly adheres to the fabric surface under the elastic force of the spring 1002, forming a sealed shaping cavity to prevent high-pressure hot air from leaking out and to ensure the hot air penetration pressure; in the processing state, the electric push rod 503 extends, and the driving wheel 504 meshes with the driven wheel 505.

[0037] Then, the second lead screw 501 rotates, causing the adapter cover 10 to move with the fabric. When the second lead screw 501 rotates, it drives the transmission rod 502 to rotate synchronously. The transmission rod 502 drives the transmission sleeve 701 and the transmission disk 703 to rotate continuously. The annular groove 704 on the transmission disk 703 squeezes the guide rod 905, causing the sliding rod 904 to move up and down reciprocally. Through the cooperation of the push shaft 906 and the sliding groove 903, the connecting rod group 902 is pushed to swing, thereby driving the piston plate 901 to slide back and forth along the inner wall of the air pressure seat 8. When the piston plate 901 moves upward, a negative pressure is formed inside the air pressure seat 8. The high-temperature hot air inside the high-temperature heating chamber 2 is drawn through the air inlet pipe 802, and the filter screen 803 intercepts fiber impurities. When the piston plate 901 moves downward, the hot air in the compression chamber forms a high-pressure airflow, which is delivered to the inside of the adapter cover 10 through the exhaust pipe 801. After being evenly distributed by the air guide net 1003, it acts directionally on the thick patterned area of ​​the fabric to achieve deep penetration and shaping of high-pressure hot air.

[0038] During the rotation of the transmission sleeve 701, the outer brush sleeve 702 continuously contacts and cleans the outer wall of the filter screen 803, cleaning the fibers, lint and dust attached to the surface of the filter screen 803 in real time, and ensuring smooth air intake.

[0039] During the reciprocating motion of the piston plate 901, the spiral sleeve 805 is moved synchronously, and the spiral shaft 804 is continuously rotated by the spiral engagement. The spiral shaft 804 drives the bottom multi-head rod 1005 to rotate through the plug joint 1004 and universal joint, continuously striking and vibrating the thick patterned area of ​​the fabric, loosening the tightly stacked yarns, widening the hot air penetration channel, and improving the hot air penetration efficiency.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A heat recovery device for recovering waste heat from a stenter, comprising a body (1), characterized in that: A high-temperature heating chamber (2) is installed on the body (1). A heat exchanger (3) is connected to the top of the high-temperature heating chamber (2) through a negative pressure device. An adjusting frame (4) is slidably fitted inside the high-temperature heating chamber (2). A drive assembly (5) is rotatably connected to the adjusting frame (4). An adjusting seat (6) is provided on the drive assembly (5). A transmission assembly (7) is rotatably connected through the adjusting seat (6). A compressed air seat (8) is fixedly connected to the bottom of the adjusting seat (6). (8) An air compressor assembly (9) is provided in an internal sliding fit. An adapter cover (10) is installed at the bottom of the air compressor seat (8). The air compressor assembly (9) includes a piston plate (901). The outer wall of the piston plate (901) is slidably fitted with the inner wall of the air compressor seat (8). A connecting rod assembly (902) is rotatably connected to the top of the piston plate (901). The top of the connecting rod assembly (902) is rotatably connected to the inner wall of the air compressor seat (8). Sliding grooves (903) are provided on both sides of the top of the connecting rod assembly (902).

2. A heat recovery device for recovering waste heat from a stenter as described in claim 1, characterized in that: One end of the adjustment frame (4) is fixedly connected to a slide block (401). The slide block (401) is slidably fitted with the inner wall of the high-temperature heating chamber (2). A lead screw (402) is threaded through the slide block (401). One end of the lead screw (402) extends through the inner wall of the high-temperature heating chamber (2) to the outside and is fixedly connected to a motor. The motor is fixedly connected to the outer wall of the high-temperature heating chamber (2).

3. A heat recovery device for recovering waste heat from a stenter according to claim 1, characterized in that: The drive assembly (5) includes a second lead screw (501), both ends of which are rotatably connected to the inner wall of the adjustment frame (4). One end of the second lead screw (501) is fixedly connected to a second motor, which is also fixedly connected to the inner wall of the adjustment frame (4). The other end of the second lead screw (501) is fixedly connected to an electric actuator (503). The output end of the electric actuator (503) is fixedly connected to a drive wheel (504). A driven wheel (505) is meshed and driven on one side of the drive wheel (504). A transmission rod (502) is fixedly connected on one side of the driven wheel (505). The other end of the transmission rod (502) is rotatably connected to the inner wall of the adjustment frame (4). The outer wall of the second lead screw (501) is threadedly connected to the adjustment seat (6).

4. A heat recovery device for recovering waste heat from a stenter according to claim 1, characterized in that: The transmission assembly (7) includes a transmission sleeve (701), the outer wall of the transmission sleeve (701) is rotatably connected to the adjusting seat (6), the inner wall of the transmission sleeve (701) is slidably fitted to the outer wall of the transmission rod (502), a brush sleeve (702) is fixedly connected to one end of the outer wall of the transmission sleeve (701), and a transmission disc (703) is fixedly connected to the other end of the outer wall of the transmission sleeve (701). An annular groove (704) is provided on the transmission disc (703).

5. A heat recovery device for recovering waste heat from a stenter according to claim 4, characterized in that: The air compressor assembly (9) also includes a sliding rod (904), which is slidably connected to the top of the air compressor seat (8). A guide rod (905) is fixedly connected to one side of the top of the sliding rod (904), and the outer wall of the other end of the guide rod (905) is slidably connected to the inner wall of the annular groove (704). A push shaft (906) is fixedly connected to both sides of the bottom end of the sliding rod (904), and the outer wall of the push shaft (906) is slidably connected to the inner wall of the groove (903).

6. A heat recovery device for recovering waste heat from a stenter according to claim 4, characterized in that: An exhaust pipe (801) is fixedly connected to the bottom end of the air compressor seat (8), and an air inlet pipe (802) is fixedly connected to the top end of one side of the air compressor seat (8). A filter screen (803) is fixedly connected to the top end of the air inlet pipe (802). The outer wall of the filter screen (803) is in sliding contact with the outer wall of the brush sleeve (702). The outer wall of the air inlet pipe (802) inside the air compressor seat (8) is in sliding cooperation with the piston plate (901).

7. A heat recovery device for recovering waste heat from a stenter according to claim 6, characterized in that: A spiral shaft (804) is rotatably connected to the inner wall of the bottom end of the other side of the air compressor seat (8). A spiral sleeve (805) is slidably fitted on the outer wall of the spiral shaft (804). The spiral sleeve (805) is fixedly connected to the piston plate (901). An insertion hole (806) is opened at the bottom end of the spiral shaft (804).

8. A heat recovery device for recovering waste heat from a stenter according to claim 7, characterized in that: A rubber ring (1001) is slidably fitted through the inner wall of the bottom end of the adapter cover (10). Multiple springs (1002) are fixedly connected between the top end of the rubber ring (1001) and the inner wall of the bottom end of the adapter cover (10). An air guide net (1003) is fixedly connected to the inner wall of the top end of the adapter cover (10). An adapter opening is provided through the top end of the adapter cover (10). The inner wall of the adapter opening is movably inserted into the outer wall of the bottom end of the exhaust pipe (801).

9. A heat recovery device for recovering waste heat from a stenter according to claim 8, characterized in that: The top of the adapter cover (10) is connected to the bottom of the air compressor seat (8) by bolts. A universal joint is rotatably connected to the inner wall of the adapter cover (10). The top of the universal joint passes through the inner wall of the top of the adapter cover (10) and is fixedly connected to a connector (1004). The connector (1004) is movably connected to the insertion hole (806). A multi-head rod (1005) is fixedly connected to the bottom of the universal joint.

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