Production equipment and process for a warm and breathable knitted fabric

Abstract

The present application relates to the technical field of knitted fabric production, and discloses a production device and production process of a warm and breathable knitted fabric, which comprises a box body, a control part is arranged on the box body, the control part comprises a double-shaft motor, a rack is installed on the box body, the double-shaft motor is installed in the rack, two output ends of the double-shaft motor are both connected with rotating shafts, and the end portions of the two rotating shafts are both provided with insertion holes. Inert gas is used to replace mechanical hard contact pressure, through the synergistic effect of the pressure regulating part and the pressure compensation part, the space volume of the box body is changed by the vertical movement of the pressing plate, the inert gas pressure uniformly penetrates the horizontal section of the knitted fabric, and the inlet and outlet sections are differentially pressed through the pressure relief holes. This non-contact pressure transmission mode avoids excessive local stress, reduces the risk of loop breakage for fabrics with loose organizational structure, reduces the problem of decreased elastic recovery rate for elastic fabrics containing spandex, and significantly improves the surface integrity and mechanical property stability of the fabric.

Description

Technical Field

[0001] This invention relates to the field of knitted fabric production technology, specifically to a production equipment and process for producing warm and breathable knitted fabrics. Background Technology

[0002] Knitted fabrics, with their softness, elasticity, and excellent breathability, are widely used in clothing, home textiles, medical devices, and many other fields. However, as market demands for the quality of knitted fabrics continue to rise, various technical issues in the production process are gradually becoming key factors restricting product quality upgrades.

[0003] In the finishing and processing of knitted fabrics, mechanical pressure is a common process, such as using roller pressing equipment to calender, emboss, or apply functional additives to the fabric. However, the unique loop structure of knitted fabrics makes them prone to uneven deformation under stress. Traditional roller pressing equipment uses rigid rollers to apply pressure from opposite directions, and the pressure transmission is concentrated in the contact area between the roller surface and the fabric. This can easily lead to excessive local stress. For knitted fabrics with a loose structure, excessive local pressure can cause the loops to stretch excessively or even break, resulting in wrinkles, holes, or permanent deformation on the fabric surface. For knitted fabrics containing elastic fibers such as spandex, uneven local pressure can also cause a decrease in elastic recovery rate, leading to quality defects such as local loosening and bubbling during the wearing process.

[0004] The heat setting process is a core step in ensuring the dimensional stability of knitted fabrics. It uses high temperatures to rearrange and fix the fiber molecular chains within the fabric. However, the loose structure of knitted fabrics, composed of interlocking loops, makes them extremely sensitive to tension changes during heat setting. Traditional heat setting equipment typically uses needle plates or fabric clamps to hold the fabric edges for stretching and shaping. Uneven clamping tension and tension fluctuations during fabric transport can easily cause the loop structure to be forcibly pulled apart. Especially in large-scale production, the fabric dimensional deviation rate remains high, making it difficult to improve the yield rate of functional knitted fabrics. Therefore, this paper proposes a production equipment and process for warm and breathable knitted fabrics to address the aforementioned problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a production equipment and process for producing warm and breathable knitted fabrics, which solves the problems of localized damage caused by mechanical pressure during the finishing process of knitted fabrics, and dimensional instability and low pass rate caused by tension issues during the heat setting process.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a production equipment for warm and breathable knitted fabrics, comprising a housing, a control unit on the housing, the control unit including a dual-axis motor, a frame mounted on the housing, the dual-axis motor installed within the frame, two output ends of the dual-axis motor connected to rotating shafts, each end of the two rotating shafts having an insertion hole, each insertion hole having a slot, supports connected to both sides of the frame, the supports being fixedly connected to the housing, each support having a lifting arm connected to each of the two supports, and each lifting arm having a limit ring connected to it. Each boom has two limit rings. The bracket is equipped with a switching part, which includes an electric actuator. The electric actuator is mounted on one of the brackets. The movable end of the electric actuator is rotatably connected to a turntable. The turntable is connected to an insertion rod, and the insertion rod is connected to a locking arm. The insertion rod is slidably connected in an insertion hole, and the locking arm is slidably connected in a locking groove. A sleeve is fitted on the turntable, and a locking rod is connected to the sleeve. Each of the two limit rings on one boom is rotatably connected to a flange. A rotating ring is fixedly fitted on each of the two flanges, and each of the two rotating rings has a locking hole corresponding to the locking rod.

[0009] Preferably, there are two switching parts. The other switching part is installed on the limiting ring of another bracket and another boom. The two switching parts are arranged symmetrically to each other. The movable end of each rotating shaft and electric actuator moves through its adjacent limiting ring.

[0010] Preferably, the bracket is provided with a positioning part, the positioning part includes a screw, the screw is rotatably connected to one of the brackets, a limit plate is connected to the housing, the end of the screw is rotatably connected to the limit plate, a spur gear is sleeved on the screw and one of the flanges, the two spur gears mesh with each other, a U-shaped arm is fitted on the housing, the U-shaped arm is threaded onto the screw, and a sealing plate is connected to both ears of the U-shaped arm.

[0011] Preferably, there are two positioning parts, with one positioning part mounted on another bracket. The two positioning parts are arranged symmetrically to each other. An infrared sensor is installed on one ear end of one of the U-shaped arms, and a distance sensor is installed on one ear end of the other U-shaped arm. The infrared sensor and the distance sensor are aligned, and the sensing ends of the infrared sensor and the sensing ends of the distance sensor are staggered.

[0012] Preferably, the housing is provided with a clamping compensation part, which includes a through hole on one side of the housing. A support plate is installed inside the housing, and a sliding groove is provided inside the housing. Two clamping arms are fitted inside the housing, and the two clamping arms are symmetrically arranged. The sides of the two clamping arms that are close to each other are arc-shaped structures. The ends of the two clamping arms are connected to sliding arms, and the two clamping arms are slidably connected to the sliding groove through the sliding arms. The two clamping arms are elastically connected to the inner wall of the housing and the support plate respectively by springs.

[0013] Preferably, there are two clamping compensation parts, with the other clamping compensation part installed on the other side of the housing. The two clamping compensation parts are symmetrically arranged. The inner walls of the two through holes in the two clamping compensation parts are provided with adjustment holes corresponding to the sealing plates. The adjustment holes are all connected to the housing. Each sealing plate is slidably connected in the corresponding adjustment hole.

[0014] Preferably, the housing is provided with a pressure regulating part, which includes two rotating rods. Both rotating rods are rotatably connected to the housing. One end of each rotating rod movably passes through the housing. The outer wall of the flange on the two rotating shafts and the through end of the two rotating rods are fitted with bevel gears. Every two adjacent bevel gears mesh with each other. The other end of each rotating rod is threaded and threaded with a rod sleeve. The ends of the two rod sleeves are fixedly connected with cross pressure arms.

[0015] Preferably, the cross arm is provided with a pressure compensation part, which includes four outer rods. The four outer rods are all fixedly connected to the inner wall of the housing. The inner walls of the four outer rods are slidably connected to inner rods. The ends of the four inner rods are fixedly connected to pressure plates. The pressure plates and the four outer rods are elastically connected to tension springs. The two sides of the pressure plates are connected to the two support plates, and pressure relief holes are opened on both sides of the pressure plates.

[0016] Preferably, the bottom of the box is connected to an air injection pipe and a pressure regulating valve, and a conveying roller is rotatably connected inside the box. The conveying roller is provided with a knitted fabric, and the two ends of the knitted fabric pass through two pressure relief holes and two clamping arms on the same side, and pass through through holes on both sides of the box.

[0017] A production process for a warm and breathable knitted fabric, based on the aforementioned production equipment for a warm and breathable knitted fabric, includes the following steps:

[0018] S1: The knitted fabric enters the box through the through hole on one side. The infrared sensor is blocked and generates a sensing signal, which drives the electric push rod to retract through the PLC controller. This causes the locking rod to unlock the rotating ring on the bevel gear and lock the locking hole of the rotating ring on the spur gear, thereby driving the screw to rotate and adjust the position of the U-shaped arm to automatically match the size of the knitted fabric.

[0019] S2: The distance sensor synchronously detects the distance to the knitted fabric. When the distance is less than 10cm, the gap between the U-shaped arm and the knitted fabric is less than 1mm. The PLC controller drives the electric push rod to extend and unlock the rotating ring on the spur gear, and then relocks the rotating ring on the bevel gear.

[0020] S3: The knitted fabric is elastically held by the clamping arm and continuously conveyed by the conveying roller in the box. The dual-axis motor drives the rotating shaft to rotate and drives the rotating rod to rotate through the bevel gear, which causes the cross pressure arm to push the pressure plate to move vertically, thereby driving the expansion joint and reducing the volume of the space inside the box.

[0021] S4: The chamber is pre-filled with inert gas through an injection pipe, creating a pressure difference between the inside and outside of the chamber. As the pressure plate descends, the inert gas pressure penetrates the horizontal section of the knitted fabric. The inert gas passes through the pressure relief hole and applies different levels of pressure to the inlet and outlet sections of the knitted fabric. Pressure changes inside the chamber can be detected by a pressure regulating valve and existing pressure sensors. The PLC controller drives a dual-axis motor to rotate forward or in reverse. Furthermore, the vertical movement distance of the pressure plate is changed by the elasticity of the tension spring to adjust the pressure of the inert gas on the knitted fabric inside the chamber.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, the present invention provides a production equipment and process for producing warm and breathable knitted fabrics, which has the following beneficial effects:

[0024] 1. The production equipment and process for this warm and breathable knitted fabric adopts uniform inert gas pressure instead of mechanical hard contact pressure. Through the synergistic action of the pressure regulating part and the pressure compensation part, the vertical movement of the pressure plate changes the volume of the box space, so that the inert gas pressure penetrates the horizontal section of the knitted fabric evenly. At the same time, differential pressure is applied to the inlet and outlet sections through the pressure relief hole. This non-contact pressure transmission method avoids excessive local stress, reduces the risk of coil breakage for fabrics with loose structure, and reduces the problem of decreased elastic recovery rate for elastic fabrics containing spandex, significantly improving the surface integrity and mechanical property stability of the fabric.

[0025] 2. The production equipment and process for this warm and breathable knitted fabric employs a clamping compensation unit that uses the arc structure of the clamping arm to elastically connect with a spring, achieving adaptive tension adjustment during fabric conveying and avoiding localized stretching caused by rigid clamping. The positioning unit, with the help of coordinated detection by infrared and distance sensors, automatically matches the fabric size through a screw-driven sealing plate, ensuring accurate edge positioning of the fabric during the shaping process. The combined effect of these two mechanisms significantly reduces the fabric size deviation rate in large-batch production and significantly improves the pass rate of functional knitted fabric production.

[0026] 3. The production equipment and process for this warm and breathable knitted fabric employs a switching unit that uses an electric push rod to selectively lock different rotating rings, enabling precise switching between positioning and pressure adjustment modes by the dual-axis motor. This solves the problems of traditional equipment having limited functionality and cumbersome adjustments. When the fabric enters, it automatically switches to positioning mode and seamlessly switches to pressure adjustment mode after size adaptation. The entire process requires no manual intervention. Simultaneously, the tension spring structure of the pressure compensation unit and the PLC controller form a closed-loop adjustment system, which can adjust the pressure plate movement distance in real time based on pressure sensor feedback, achieving dynamic and precise control of inert gas pressure. This meets the pressure requirements of different fabrics and different process stages, significantly improving the equipment's intelligent adaptability.

[0027] 4. The production equipment and process for this warm and breathable knitted fabric adopts a design that combines a sealing plate in the positioning section with a through hole in the clamping compensation section to achieve dynamic sealing of the fabric inlet and outlet, reducing gas leakage losses. At the same time, inert gas is used as the pressure medium, and its chemical stability avoids chemical reactions with the fabric fibers. Compared with traditional chemical auxiliary treatment, it is more environmentally friendly and safer. In the overall structure of the equipment, the limiting ring constrains the movement of the rotating shaft and electric actuator, further improving the safety and reliability of the equipment operation, which meets the dual requirements of modern green production for environmental protection and safety.

[0028] 5. The production equipment and process for this warm and breathable knitted fabric adopts modularly designed core components such as the control unit, switching unit, and positioning unit, which can adapt to the production needs of knitted fabrics with different thicknesses and fiber compositions. The sliding arm and sliding groove of the clamping compensation unit cooperate to allow the clamping arm to adaptively adjust with the fabric thickness. The tension spring buffer mechanism of the pressure compensation unit can adapt to the pressure sensitivity characteristics of different fabrics. This high degree of process flexibility allows the equipment to produce both thick knitted fabrics with excellent warmth retention and thin fabrics with good breathability, greatly expanding the application scenarios of the equipment and providing strong support for the diversified production of functional knitted fabrics. Attached Figure Description

[0029] Figure 1 This is an overall structural diagram of a production equipment for a warm and breathable knitted fabric proposed in this invention;

[0030] Figure 2 This is a structural diagram of the internal structure of a production equipment box for producing warm and breathable knitted fabrics according to the present invention.

[0031] Figure 3 This is a connection diagram of the control unit, switching unit, positioning unit, and pressure regulating unit of the production equipment for a thermal and breathable knitted fabric proposed in this invention.

[0032] Figure 4 This is a structural diagram of the control unit of a production equipment for a warm and breathable knitted fabric proposed in this invention;

[0033] Figure 5 This is a structural diagram of the switching section of a production equipment for a warm and breathable knitted fabric proposed in this invention;

[0034] Figure 6 This is a structural diagram of the positioning part of a production equipment for a warm and breathable knitted fabric proposed in this invention;

[0035] Figure 7 This is a structural diagram of the clamping compensation part of a production equipment for a warm and breathable knitted fabric proposed in this invention;

[0036] Figure 8 This invention provides a structural diagram of an infrared sensor and a distance sensor for a production equipment for warm and breathable knitted fabrics.

[0037] Figure 9 This is a structural diagram of the pressure regulating section and pressure compensation section of a production equipment for a warm and breathable knitted fabric proposed in this invention.

[0038] In the diagram: 1. Housing; 2. Control unit; 21. Dual-axis motor; 22. Rotating shaft; 23. Insertion hole; 24. Slot; 25. Frame; 26. Bracket; 27. Lifting arm; 28. Limiting ring; 3. Switching unit; 31. Electric actuator; 32. Turntable; 33. Insertion rod; 34. Locking arm; 35. Sleeve disc; 36. Locking rod; 37. Flange; 38. Rotating ring; 39. Locking hole; 4. Positioning unit; 41. Screw; 42. Limiting plate; 43. Spur gear; 44. U-shaped arm; 45. Sealing plate 5. Clamping compensation part; 51. Through hole; 52. Support plate; 53. Slide groove; 54. Clamping arm; 55. Sliding arm; 56. Spring; 6. Pressure regulating part; 61. Rotating rod; 62. Bevel gear; 63. Rod sleeve; 64. Cross pressure arm; 7. Pressure compensation part; 71. Outer rod; 72. Pressure plate; 73. Tension spring; 74. Expansion joint; 75. Pressure relief hole; 8. Infrared sensor; 9. Distance sensor; 10. Air injection pipe; 11. Pressure regulating valve; 12. Conveyor roller; 13. Knitted fabric. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1-9This invention provides a technical solution: a production equipment for warm and breathable knitted fabrics, comprising a housing 1, a control unit 2 on the housing 1, the control unit 2 including a dual-axis motor 21, a frame 25 mounted on the housing 1, the dual-axis motor 21 mounted inside the frame 25, two output ends of the dual-axis motor 21 connected to rotating shafts 22, each end of the two rotating shafts 22 having an insertion hole 23, each insertion hole 23 having a slot 24, brackets 26 connected to both sides of the frame 25, the brackets 26 being fixedly connected to the housing 1, each bracket 26 having a lifting arm 27 connected to it, each lifting arm 27 having a limit ring 28 connected to it, and each lifting arm 27 having a number of limit rings 28. There are two of each type of support. A switching part 3 is provided on the bracket 26. The switching part 3 includes an electric push rod 31. The electric push rod 31 is installed on one of the brackets 26. The movable end of the electric push rod 31 is rotatably connected to a turntable 32. An insertion rod 33 is connected to the turntable 32. A locking arm 34 is connected to the insertion rod 33. The insertion rod 33 is slidably connected in the insertion hole 23. The locking arm 34 is slidably connected in the locking groove 24. A sleeve 35 is fitted on the turntable 32. A locking rod 36 is connected to the sleeve 35. A flange 37 is rotatably connected to two limiting rings 28 on one of the booms 27. A rotating ring 38 is fixedly fitted on each of the two flanges 37. A locking hole 39 corresponding to the locking rod 36 is opened on each of the two rotating rings 38.

[0041] In this embodiment, there are two switching parts 3. The other switching part 3 is installed on the limiting ring 28 of another bracket 26 and another boom 27. The two switching parts 3 are arranged symmetrically to each other. The movable ends of each rotating shaft 22 and electric push rod 31 respectively move through their adjacent limiting ring 28.

[0042] It is worth noting that a positioning part 4 is provided on the bracket 26. The positioning part 4 includes a screw 41, which is rotatably connected to one of the brackets 26. A limit plate 42 is connected to the housing 1. The end of the screw 41 is rotatably connected to the limit plate 42. Spur gears 43 are sleeved on both the screw 41 and one of the flanges 37. The two spur gears 43 mesh with each other. A U-shaped arm 44 is attached to the housing 1. The U-shaped arm 44 is threaded onto the screw 41. Both ears of the U-shaped arm 44 are connected to sealing plates 45. There are two positioning parts 4. The other positioning part 4 is installed on another bracket 26. The two positioning parts 4 are symmetrically arranged. An infrared sensor 8 is installed on one ear of one U-shaped arm 44. A distance sensor 9 is installed on one ear of the other U-shaped arm 44. The infrared sensor 8 and the distance sensor 9 are aligned. The sensing ends of the infrared sensor 8 and the sensing ends of the distance sensor 9 are staggered.

[0043] The housing 1 is provided with a clamping compensation part 5, which includes a through hole 51 on one side of the housing 1. A support plate 52 is installed inside the housing 1, and a sliding groove 53 is provided inside the housing 1. Two clamping arms 54 are fitted inside the housing 1 and are symmetrically arranged. The sides of the two clamping arms 54 that are close to each other are arc-shaped. The ends of the two clamping arms 54 are connected to sliding arms 55. The two clamping arms 54 are slidably connected to the sliding groove 53 through the sliding arms 55. The two clamping arms 54 are elastically connected to the inner wall of the housing 1 and the support plate 52 respectively by springs 56. There are two clamping compensation parts 5. The other clamping compensation part 5 is installed on the other side of the housing 1. The two clamping compensation parts 5 are symmetrically arranged. The inner walls of the two through holes 51 in the two clamping compensation parts 5 are provided with adjustment holes corresponding to the sealing plates 45. The adjustment holes are connected to the housing 1. Each sealing plate 45 is slidably connected in the corresponding adjustment hole.

[0044] It is worth noting that a pressure regulating part 6 is provided inside the housing 1. The pressure regulating part 6 includes two rotating rods 61, both of which are rotatably connected to the housing 1. One end of each of the two rotating rods 61 movably passes through the housing 1. The outer walls of the flanges 37 on the two rotating shafts 22 and the through ends of the two rotating rods 61 are fitted with bevel gears 62. Each pair of adjacent bevel gears 62 mesh with each other. The other end of each of the two rotating rods 61 is threaded and threaded with a rod sleeve 63. The ends of the two rod sleeves 63 are fixedly connected with cross pressure arms 64.

[0045] A pressure compensation part 7 is provided on the cross pressure arm 64. The pressure compensation part 7 includes four outer rods 71, which are all fixedly connected to the inner wall of the box 1. The inner walls of the four outer rods 71 ​​are slidably connected to inner rods. The ends of the four inner rods are fixedly connected to pressure plates 72. Tension springs 73 are elastically connected between the pressure plates 72 and the four outer rods 71. Expansion joints 74 are connected between the two sides of the pressure plates 72 and the two support plates 52. Pressure relief holes 75 are opened on both sides of the pressure plates 72. An air injection pipe 10 and a pressure regulating valve 11 are connected to the bottom of the box 1. A conveying roller 12 is rotatably connected inside the box 1. The conveying roller 12 is provided with knitted fabric 13. The two ends of the knitted fabric 13 pass through the two pressure relief holes 75 and the two clamping arms 54 on the same side, and pass through the through holes 51 on both sides of the box 1, respectively.

[0046] A production process for a warm and breathable knitted fabric, based on the aforementioned production equipment for a warm and breathable knitted fabric, includes the following steps:

[0047] S1: Knitted fabric 13 enters housing 1 through one side through hole 51. Infrared sensor 8 is blocked and generates a sensing signal, which drives electric push rod 31 to retract through PLC controller. This causes locking rod 36 to unlock the rotating ring 38 on bevel gear 62 and lock the locking hole 39 of rotating ring 38 on spur gear 43. This drives screw 41 to rotate and adjust the position of U-shaped arm 44 to automatically match the size of knitted fabric 13.

[0048] S2: The distance sensor 9 synchronously detects the distance to the knitted fabric 13. When the distance is less than 10cm, the U-shaped arm 44 and the knitted fabric 13 are less than 1mm apart. The electric push rod 31 is driven by the PLC controller to extend and unlock the rotating ring 38 on the spur gear 43, and then relock the rotating ring 38 on the bevel gear 62.

[0049] S3: The knitted fabric 13 is elastically held by the clamping arm 54 and continuously conveyed in the box 1 by the conveying roller 12. The dual-axis motor 21 drives the rotating shaft 22 to rotate and drives the rotating rod 61 to rotate through the bevel gear 62, causing the cross pressure arm 64 to push the pressure plate 72 to move vertically, thereby driving the telescopic joint 74 to reduce the volume of the space inside the box 1.

[0050] S4: The chamber 1 is pre-filled with inert gas through the gas injection pipe 10, creating a pressure difference between the inside and outside of the chamber 1. When the pressure plate 72 descends, the inert gas pressure penetrates the horizontal section of the knitted fabric 13. The inert gas passes through the pressure relief hole 75 and applies pressure to the inlet and outlet sections of the knitted fabric 13 to different degrees. The pressure change inside the chamber 1 can be detected by the pressure regulating valve 11 and the existing pressure sensor. The dual-axis motor 21 is driven to rotate in the forward or reverse direction by the PLC controller. Furthermore, the vertical movement distance of the pressure plate 72 is changed by the elasticity of the tension spring 73 to adjust the pressure of the inert gas on the knitted fabric 13 inside the chamber 1.

[0051] Working principle: The control unit 2 provides power and supports the entire equipment. Its dual-axis motor 21 is connected to the switching unit 3 through the rotating shaft 22. The switching unit 3 transmits power to the positioning unit 4 and the pressure regulating unit 6 through gear meshing. The sealing plate 45 of the positioning unit 4 cooperates with the through hole 51 of the clamping compensation unit 5. The cross pressure arm 64 of the pressure regulating unit 6 is connected to the pressure plate 72 of the pressure compensation unit 7. The pressure compensation unit 7 and the clamping compensation unit 5 are both located inside the housing 1, which together constitute the core space for fabric processing.

[0052] When the knitted fabric 13 enters the housing 1 through the through hole 51 on one side, the infrared sensor 8 is blocked and generates a sensing signal. This signal drives the electric push rod 31 of the switching unit 3 to retract through the PLC controller. The retraction of the electric push rod 31 drives the locking rod 36 to unlock the rotating ring 38 on the bevel gear 62, and at the same time locks the locking hole 39 of the rotating ring 38 on the spur gear 43. This allows the power of the dual-axis motor 21 to be transmitted to the screw 41 of the positioning unit 4 through the rotating shaft 22 and the spur gear 43. The rotation of the screw 41 drives the U-shaped arm 44 and the sealing plate 45 to move, automatically matching the size of the knitted fabric 13 and achieving a sealed fit between the fabric inlet and outlet. When the distance sensor 9 detects that the distance to the fabric is less than a preset threshold, the PLC controller drives the electric push rod 31 to extend, unlocking the rotating ring 38 on the spur gear 43 and relocking the rotating ring 38 on the bevel gear 62, completing the positioning adjustment and switching to the pressure adjustment mode.

[0053] The knitted fabric 13 is continuously conveyed under the drive of the conveying roller 12, and is simultaneously elastically clamped by the clamping arm 54 in the clamping compensation part 5. The elastic force of the spring 56 makes the clamping arm 54 adapt to the changes in fabric thickness, ensuring stable fabric conveying. The dual-axis motor 21 drives the rotating shaft 22 to rotate, and drives the rotating rod 61 of the pressure regulating part 6 to rotate through the bevel gear 62. The rotating rod 61 drives the rod sleeve 63 and the cross pressure arm 64 to move, pushing the pressure plate 72 of the pressure compensation part 7 to move vertically, reducing the volume of the space inside the box 1.

[0054] The chamber 1 is pre-filled with inert gas through the gas injection pipe 10. The pressure plate 72 descends, allowing the inert gas pressure to penetrate the horizontal section of the knitted fabric 13. At the same time, the inert gas passes through the pressure relief hole 75 to apply different degrees of pressure to the inlet and outlet sections of the knitted fabric 13. The pressure regulating valve 11 and the pressure sensor detect the pressure changes inside the chamber 1. The PLC controller drives the dual-axis motor 21 to rotate in the forward or reverse direction according to the detection results. The vertical movement distance of the pressure plate 72 is elastically adjusted by the tension spring 73, so as to precisely control the pressure of the inert gas inside the chamber 1 on the knitted fabric 13 and optimize the warmth and breathability of the fabric.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An apparatus for producing a warm and breathable knitted fabric, comprising a box (1), characterized in that: The box (1) is provided with a control part (2), the control part (2) includes a double-shaft motor (21), the box (1) is provided with a rack (25), the double-shaft motor (21) is installed in the rack (25), the two output ends of the double-shaft motor (21) are connected with the rotating shaft (22), the end of the two rotating shafts (22) is provided with the insertion hole (23), the insertion hole (23) is provided with the clamping groove (24), the two sides of the rack (25) are connected with the support (26), the support (26) is fixedly connected between the box (1), the two supports (26) are connected with the hanging arm (27), the two hanging arms (27) are connected with the limiting ring (28), the number of the limiting ring (28) on each hanging arm (27) is two; The support (26) is provided with a switching part (3), the switching part (3) includes an electric push rod (31), the electric push rod (31) is installed on one of the supports (26), the movable end of the electric push rod (31) is rotatably connected with the rotating disc (32), the rotating disc (32) is connected with the insertion rod (33), the insertion rod (33) is connected with the clamping arm (34), the insertion rod (33) is slidably connected in the insertion hole (23), the clamping arm (34) is slidably connected in the clamping groove (24), the rotating disc (32) is provided with the sleeve disc (35), the sleeve disc (35) is connected with the locking rod (36), the two limiting rings (28) on one of the hanging arms (27) are rotatably connected with the flange (37), the two flanges (37) are fixedly provided with the rotating ring (38), the two rotating rings (38) are provided with the lock hole (39) corresponding to the locking rod (36); The number of the switching part (3) is two, the other switching part (3) is installed on the other support (26) and the limiting ring (28) of the other hanging arm (27), the two switching parts (3) are symmetrically arranged, and the rotating shaft (22) and the movable end of the electric push rod (31) are respectively movably penetrated through the adjacent limiting ring (28); The box (1) is provided with a clamping compensation part (5), the clamping compensation part (5) includes a through hole (51), the through hole (51) is formed in one side of the box (1), the box (1) is provided with a support plate (52), the box (1) is provided with a sliding groove (53), the box (1) is attached with two clamping arms (54), the two clamping arms (54) are symmetrically arranged, the two clamping arms (54) are arc-shaped on the side close to each other, the two clamping arms (54) are connected with the sliding arm (55), and the two clamping arms (54) are slidably connected to the sliding groove (53) through the sliding arm (55); the two clamping arms (54) are elastically connected with springs (56) between the inner wall of the box (1) and the support plate (52) respectively; The number of the clamping compensation part (5) is two, the other clamping compensation part (5) is installed on the other side of the box (1), and the two clamping compensation parts (5) are symmetrically arranged. The box (1) is provided with a pressure regulating part (6), the pressure regulating part (6) includes two rotating rods (61), both of the rotating rods (61) are rotatably connected to the box (1), and the ends of both of the rotating rods (61) are movably penetrated through the box (1); the flanges (37) on the two rotating shafts (22) and the penetrated ends of the two rotating rods (61) are both sleeved with bevel gears (62), every two adjacent bevel gears (62) are meshed with each other, and the other ends of the two rotating rods (61) are both screw structures and are sleeved with rod sleeves (63); the end portions of the two rod sleeves (63) are fixedly connected with cross pressure arms (64). The cross pressure arms (64) are provided with a pressure compensation part (7), the pressure compensation part (7) includes four outer rods (71), the four outer rods (71) are all fixedly connected to the inner wall of the box (1), the inner walls of the four outer rods (71) are all slidably connected with inner rods, the end portions of the four inner rods are fixedly connected with pressure plates (72), the pressure plates (72) and the four outer rods (71) are all elastically connected with tension springs (73), the two sides of the pressure plates (72) and the two supporting plates (52) are all connected with expansion joints (74), and the two sides of the pressure plates (72) are both provided with pressure relief holes (75). The bottom of the box (1) is communicated with a gas injection pipe (10) and a pressure regulating valve (11), the box (1) is rotatably connected with a conveying roller (12), the conveying roller (12) is provided with a knitted fabric (13), and the two ends of the knitted fabric (13) pass through the two pressure relief holes (75) and the two clamping arms (54) on the same side and pass through the through holes (51) on the two sides of the box (1) respectively.

2. The apparatus for producing a warm and breathable knitted fabric according to claim 1, wherein: The supports (26) are provided with positioning parts (4), the positioning parts (4) include screw rods (41), the screw rods (41) are rotatably connected to one of the supports (26), the box (1) is connected with a limiting plate (42), the end portions of the screw rods (41) are rotatably connected to the limiting plate (42), the screw rods (41) and one of the flanges (37) are both sleeved with spur gears (43), the two spur gears (43) are meshed with each other, the box (1) is attached with a U-shaped arm (44), the U-shaped arm (44) is threadedly sleeved on the screw rod (41), and the two ear ends of the U-shaped arm (44) are both connected with sealing plates (45).

3. The apparatus for producing a warm and breathable knitted fabric according to claim 2, wherein: The number of the positioning parts (4) is two, the other positioning part (4) is arranged on the other support (26), and the two positioning parts (4) are arranged symmetrically with each other; one side of one of the U-shaped arms (44) is provided with an infrared sensor (8), one side of the other U-shaped arm (44) is provided with a distance sensor (9), the infrared sensor (8) and the distance sensor (9) are arranged in alignment, and the sensing end of the infrared sensor (8) and the sensing end of the distance sensor (9) are arranged alternately.

4. The apparatus for producing a warm and breathable knitted fabric according to claim 3, wherein: The inner wall of the two through holes (51) in the two clamping compensation parts (5) is provided with an adjusting hole corresponding to the sealing plate (45), and the adjusting hole is in communication with the box body (1). Each sealing plate (45) is slidably connected in the corresponding adjusting hole.

5. A process for producing a warm and breathable knitted fabric according to claim 4, wherein the production apparatus for producing a warm and breathable knitted fabric according to claim 4 is used. The method comprises the following steps: S1: The knitted fabric (13) passes through one side of the through hole (51) into the box body (1), the infrared sensor (8) is blocked to generate an induction signal, the electric push rod (31) is driven by the PLC controller to shrink, the lock rod (36) is unlocked to the rotating ring (38) on the bevel gear (62), and the rotating ring (38) on the spur gear (43) is locked in the lock hole (39), so that the screw rod (41) is rotated to adjust the position of the U-shaped arm (44), and the size of the knitted fabric (13) is automatically matched; S2: The distance sensor (9) synchronously detects the distance from the knitted fabric (13), when the distance is less than 10 cm, at this time, the distance between the U-shaped arm (44) and the knitted fabric (13) is less than 1 mm, the electric push rod (31) is extended and the rotating ring (38) on the spur gear (43) is unlocked by the PLC controller, and the rotating ring (38) on the bevel gear (62) is relocked; S3: The knitted fabric (13) is elastically clamped by the clamping arm (54) and continuously conveyed in the box body (1) by the conveying roller (12), the rotating shaft (22) is rotated by the double-shaft motor (21) and drives the rotating rod (61) to rotate through the bevel gear (62), the cross-shaped pressing arm (64) pushes the pressing plate (72) to move vertically, so as to drive the telescopic joint (74) to reduce the space volume in the box body (1); S4: The box body (1) is pre-filled with inert gas through the gas injection pipe (10), so that a pressure difference is generated between the inside and outside of the box body (1), the inert gas pressure penetrates the horizontal section of the knitted fabric (13) when the pressing plate (72) descends, the inert gas passes through the pressure relief hole (75) to press the inlet and outlet sections of the knitted fabric (13) to different degrees, the pressure change in the box body (1) can be detected through the pressure regulating valve (11) and the existing pressure sensor, and the double-shaft motor (21) is driven by the PLC controller to rotate forward or reverse, and the vertical movement distance of the pressing plate (72) is further elastically changed by the tension spring (73), so as to adjust the pressure of the inert gas in the box body (1) on the knitted fabric (13).

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