Production equipment and production process of warm-keeping breathable knitted fabric

Abstract

The invention relates to the technical field of knitted fabric production, and discloses production equipment and a production process of a warm-keeping breathable knitted fabric, the production equipment comprises a box body, a control part is arranged on the box body, the control part comprises a double-shaft motor, a rack is mounted on the box body, the double-shaft motor is mounted in the rack, two output ends of the double-shaft motor are both connected with rotating shafts, and the rotating shafts are connected with a motor. Inert gas uniform pressure application is adopted to replace mechanical hard contact pressure application, through the synergistic effect of the pressure adjusting part and the pressure compensation part, the space volume of the box body is changed through vertical movement of the pressing plate, the pressure of the inert gas evenly penetrates through the horizontal section of the knitted fabric, and meanwhile differential pressure application is conducted on the inlet and outlet sections through the pressure relief holes. According to the non-contact pressure conduction mode, overlarge local stress is avoided, the coil breakage risk of the fabric with a loose tissue structure can be reduced, the problem of reduction of the elastic recovery rate of the elastic fabric containing spandex can be solved, and the surface integrity and the mechanical property stability of the fabric are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of knitted fabric production, in particular to a production equipment and production process of a warm and breathable knitted fabric. BACKGROUND

[0002] Knitted fabrics are widely used in clothing, home textiles, medical care and other fields due to their softness, good elasticity and excellent air permeability. With the increasing demand for the quality of knitted fabrics, various technical problems in the production process have gradually become the key factors restricting the upgrading of product quality. In the finishing and processing of knitted fabrics, mechanical pressing is a common process, such as through the roller pressing equipment to realize the glazing, pattern rolling or application of functional additives of the fabric. However, the unique loop structure of knitted fabrics makes them prone to uneven deformation under stress. The traditional roller pressing equipment uses rigid rollers to press from both sides, and the pressure is concentrated on the contact area between the roller surface and the fabric, which easily leads to excessive local stress. For knitted fabrics with loose structure, excessive local pressure can cause excessive stretching or even breakage of the loops, resulting in wrinkles, holes or permanent deformation on the surface of the fabric. 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 relaxation and bagging during wearing. The heat setting process is a key link to ensure the dimensional stability of knitted fabrics. It promotes the rearrangement and fixation of fiber molecular chains in the fabric through high temperature. However, the loose structure of knitted fabrics, which is formed by loops interlocking with each other, makes them very sensitive to tension changes during heat setting. Traditional heat setting equipment usually uses needle plates or cloth clips to hold the edges of the fabric for stretching and setting. The uneven clamping tension and the tension fluctuation of the fabric during conveying can easily cause the loop structure to be forcibly pulled apart. Especially in mass production, the dimensional deviation rate of the fabric is high, which makes it difficult to improve the production yield of functional knitted fabrics. Therefore, a production equipment and production process of a warm and breathable knitted fabric are proposed to solve the above problems. SUMMARY

[0003] (I) Technical problems solved In view of the shortcomings of the prior art, the present application provides a production equipment and production process of a warm and breathable knitted fabric, which solves the problems of local damage caused by mechanical pressing in the finishing of knitted fabrics, dimensional instability and low yield caused by tension problems in the heat setting process.

[0004] (II) Technical solutions In order to achieve the above object, the present application provides the following technical scheme: a production equipment of a warm and breathable knitted fabric, comprising a box, a control part is arranged on the box, the control part comprises a double-shaft motor, a rack is mounted on the box, the double-shaft motor is installed in the rack, two output ends of the double-shaft motor are connected with shafts, end portions of the two shafts are provided with insertion holes, a clamping groove is arranged in each insertion hole, both sides of the rack are connected with supports, the supports are fixedly connected with the box, both the supports are connected with hanging arms, the hanging arms are connected with limiting rings, the number of the limiting rings on each hanging arm is two, a switching part is arranged on the support, the switching part comprises an electric push rod, the electric push rod is installed on one of the supports, a rotating disc is rotatably connected with a movable end of the electric push rod, an insertion rod is connected with the rotating disc, a clamping arm is connected with the insertion rod, the insertion rod is slidably connected in the insertion hole, the clamping arm is slidably connected in the clamping groove, a sleeve disc is sleeved on the rotating disc, a locking rod is connected with the sleeve disc, flanges are rotatably connected with the two limiting rings on one of the hanging arms, a rotating ring is fixedly sleeved on each of the flanges, and lock holes corresponding to the locking rods are arranged in the two rotating rings.

[0005] Preferably, the number of the switching parts is two, another switching part is installed on the other support and the limiting ring of the other hanging arm, and the two switching parts are symmetrically arranged with each other, and each shaft and the movable end of the electric push rod are movably penetrated through the limiting ring adjacent to itself.

[0006] Preferably, a positioning part is arranged on the support, the positioning part comprises a screw rod, the screw rod is rotatably connected with one of the supports, a limiting plate is connected with the box, an end portion of the screw rod is rotatably connected with the limiting plate, a spur gear is sleeved on the screw rod and one of the flanges, the two spur gears are engaged with each other, a U-shaped arm is attached to the box, the U-shaped arm is threadedly sleeved on the screw rod, and sealing plates are connected with two ear ends of the U-shaped arm.

[0007] Preferably, the number of the positioning parts is two, another positioning part is installed on the other support, and the two positioning parts are symmetrically arranged with each other, an infrared sensor is installed on one side of an ear end of one of the U-shaped arms, a distance sensor is installed on one side of an ear end of the other U-shaped arm, the infrared sensor and the distance sensor are arranged in alignment, and sensing ends of the infrared sensor and the distance sensor are staggered.

[0008] Preferably, the box is provided with a clamping compensation part, the clamping compensation part comprises a through hole, the through hole is arranged on one side of the box, a supporting plate is arranged in the box, a sliding groove is arranged in the box, two clamping arms are attached to the box, the two clamping arms are symmetrically arranged, the side of the two clamping arms close to each other is arc-shaped, the end of the two clamping arms is connected with a sliding arm, the two clamping arms are slidably connected to the sliding groove through the sliding arm, and springs are elastically connected between the two clamping arms and the inner wall of the box and the supporting plate.

[0009] Preferably, the number of clamping compensation parts is two, and the other clamping compensation part is arranged on the other side of the box, the two clamping compensation parts are symmetrically arranged, the inner wall of the two through holes of the two clamping compensation parts is provided with an adjusting hole corresponding to the sealing plate, and the adjusting hole is in communication with the box.

[0010] Preferably, the box is provided with a pressure regulating part, the pressure regulating part comprises two rotating rods, the two rotating rods are rotatably connected to the box, one end of the two rotating rods is movably penetrated through the box, the flange outer wall of the two rotating shafts and the penetrated end of the two rotating rods are both sleeved with bevel gears, every two adjacent bevel gears are meshed with each other, the other end of the two rotating rods is a threaded structure and is sleeved with a rod sleeve, and the end of the two rod sleeves is fixedly connected with a cross-shaped pressing arm.

[0011] Preferably, the cross-shaped pressing arm is provided with a pressure compensation part, the pressure compensation part comprises four outer rods, the four outer rods are fixedly connected to the inner wall of the box, the inner wall of the four outer rods is slidably connected with an inner rod, the end of the four inner rods is fixedly connected with a pressing plate, the pressing plate and the four outer rods are elastically connected with a tension spring, the two sides of the pressing plate and the two supporting plates are connected with an expansion joint, and the two sides of the pressing plate are provided with pressure relief holes.

[0012] Preferably, the bottom of the box is in communication with a gas injection pipe and a pressure regulating valve, the box is rotatably connected with a conveying roller, the conveying roller is provided with a knitted fabric, and the two ends of the knitted fabric pass through the two pressure relief holes and the two clamping arms on the same side and pass through the through holes on the two sides of the box.

[0013] A production process of a warm and breathable knitted fabric, according to the production equipment of the warm and breathable knitted fabric, comprising the following steps: S1: The knitted fabric passes through the through hole on one side into the box, the infrared sensor is blocked to generate an induction signal, the PLC controller drives the electric push rod to shrink, the lock rod is unlocked, the rotating ring on the bevel gear is unlocked, the lock hole of the rotating ring on the spur gear is locked, the screw is rotated to adjust the position of the U-shaped arm, and the size of the knitted fabric is automatically matched; S2: The distance sensor synchronously detects the distance from the knitted fabric, when the distance is less than 10 cm, at this time, the U-shaped arm is spaced apart from the knitted fabric by less than 1 mm, the electric push rod is driven to extend and the rotating ring on the spur gear is unlocked through the PLC controller, and the rotating ring on the bevel gear is re-locked; S3: The knitted fabric is elastically clamped by the clamping arm and continuously conveyed in the box through the conveying roller, the rotating shaft is rotated by the double-shaft motor and drives the rotating rod to rotate through the bevel gear, the cross-shaped pressing arm pushes the pressing plate to move vertically, thereby driving the telescopic joint to reduce the space volume in the box; S4: The box is pre-filled with inert gas through the gas injection pipe, so that a pressure difference is generated between the inside and outside of the box, and the inert gas pressure penetrates the horizontal section of the knitted fabric when the pressing plate descends, the inert gas penetrates the relief hole to press the entry and exit sections of the knitted fabric to different degrees, the pressure change in the box can be detected through the pressure regulating valve and the existing pressure sensor, and the double-shaft motor is driven to rotate forward or reverse through the PLC controller, and the vertical movement distance of the pressing plate is further changed by the elastic force of the tension spring, so as to adjust the pressure of the inert gas in the box on the knitted fabric.

[0014] (Three) beneficial effects Compared with the prior art, the present application provides a production equipment and production process for warm and breathable knitted fabric, which has the following beneficial effects: 1. The production equipment and production process for warm and breathable knitted fabric, which adopts inert gas uniform pressure instead of mechanical hard contact pressure, through the synergistic effect of the pressure regulating part and the pressure compensation part, the space volume of the box is changed by the vertical movement of the pressing plate, so that the inert gas pressure uniformly penetrates the horizontal section of the knitted fabric, and the entry and exit sections are differentially pressed through the relief hole. This non-contact pressure transmission method avoids excessive local stress, reduces the risk of loop breakage for fabrics with loose organizational structure, reduces the elastic recovery rate of elastic fabrics containing spandex, and significantly improves the surface integrity and mechanical property stability of the fabric.

[0015] 2. The production equipment and production process for warm and breathable knitted fabric, which adopts the clamping compensation part connected with the spring through the arc surface structure of the clamping arm, realizes self-adaptive tension adjustment during fabric conveying, avoids local stretching caused by rigid clamping, and the positioning part cooperates with the infrared sensor and distance sensor for synchronous detection, and the sealing plate is automatically matched with the fabric size through the screw drive, so as to ensure the accurate edge positioning of the fabric during setting, and the double mechanism cooperates to greatly reduce the size deviation rate of the fabric in large batch production, and significantly improve the production qualified rate of functional knitted fabric.

[0016] 3. The production equipment and process of the warm and breathable knitted fabric, which adopts a switching part to selectively lock different rotating rings by driving a locking rod with an electric push rod, realizes accurate switching of the power of a double-shaft motor between positioning adjustment and pressure adjustment modes, solves the problems of single function and complicated adjustment of traditional equipment, automatically switches to the positioning mode when the fabric enters, seamlessly switches to the pressure adjustment mode after completing size adaptation, the whole process does not need manual intervention, meanwhile, the tension spring structure of the pressure compensation part and the PLC controller constitute a closed-loop adjustment system, which can adjust the moving distance of the pressure plate in real time according to the feedback of the pressure sensor, realizes dynamic and accurate regulation and control of the pressure of inert gas, meets the pressure requirements of different fabrics and different process stages, and greatly improves the intelligent adaptation capability of the equipment.

[0017] 4. The production equipment and process of the warm and breathable knitted fabric, which adopts a cooperation design of the positioning part sealing plate and the through hole of the clamping compensation part, realizes dynamic sealing of the fabric import and export, reduces gas leakage loss, meanwhile, adopts inert gas as pressure medium, its chemical stability avoids chemical reaction with fabric fibers, compared with traditional chemical additive treatment, it is more environmentally friendly and safe, in the overall structure of the equipment, the movement of the limiting ring to the rotating shaft and the electric push rod is constrained, which further improves the safety and reliability of the equipment operation, meets the dual requirements of environmental protection and safety of modern green production.

[0018] 5. The production equipment and process of the warm and breathable knitted fabric, which adopts modular design of the control part, the switching part, the positioning part and other core components, can adapt to the production requirements of knitted fabrics with different thickness and different fiber composition, the cooperation of the sliding arm and the sliding groove of the clamping compensation part makes the clamping arm can be self-adaptively adjusted according to the thickness of the fabric, the tension spring buffer mechanism of the pressure compensation part can adapt to the pressure sensitivity characteristics of different fabrics, this high process flexibility makes the equipment not only can produce thick knitted fabrics with excellent warmth, but also can produce thin fabrics with good air permeability, greatly expands the application scenarios of the equipment, and provides strong support for the diversified production of functional knitted fabrics. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure diagram of the production equipment of the warm and breathable knitted fabric proposed by the application; Figure 2 It is an internal structure diagram of the box body of the production equipment of the warm and breathable knitted fabric proposed by the application; Figure 3 It is a connection diagram of the control part, the switching part, the positioning part and the pressure regulating part of the production equipment of the warm and breathable knitted fabric proposed by the application; Figure 4 It is a structure diagram of the control part of the production equipment of the warm and breathable knitted fabric proposed by the application; Figure 5 It is a structure diagram of the switching part of the production equipment of the warm and breathable knitted fabric proposed by the application; Figure 6 Positioning part structure diagram of production equipment of the warm-keeping and breathable knitted fabric; Figure 7 Clamping compensation part structure diagram of production equipment of the warm-keeping and breathable knitted fabric; Figure 8 Infrared sensor and distance sensor structure diagram of production equipment of the warm-keeping and breathable knitted fabric; Figure 9 Pressure regulating part and pressure compensation part structure diagram of production equipment of the warm-keeping and breathable knitted fabric.

[0020] In the figure: 1, box; 2, control part; 21, double-shaft motor; 22, rotating shaft; 23, jack; 24, clamping groove; 25, rack; 26, support; 27, hanging arm; 28, limiting ring; 3, switching part; 31, electric push rod; 32, rotating disc; 33, plug rod; 34, clamping arm; 35, sleeve disc; 36, locking rod; 37, flange; 38, rotating ring; 39, locking hole; 4, positioning part; 41, screw rod; 42, limiting plate; 43, spur gear; 44, U-shaped arm; 45, sealing plate; 5, clamping compensation part; 51, through hole; 52, support plate; 53, sliding groove; 54, clamping arm; 55, sliding arm; 56, spring; 6, pressure regulating part; 61, rotating rod; 62, bevel gear; 63, rod sleeve; 64, cross-shaped pressure arm; 7, pressure compensation part; 71, outer rod; 72, pressure plate; 73, tension spring; 74, telescopic joint; 75, pressure relief hole; 8, infrared sensor; 9, distance sensor; 10, gas injection pipe; 11, pressure regulating valve; 12, conveying roller; 13, knitted fabric. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-9The application provides a technical scheme: a production equipment for a warm and breathable knitted fabric, which comprises a box body 1, a control part 2 is arranged on the box body 1, the control part 2 comprises a double-shaft motor 21, a rack 25 is installed on the box body 1, the double-shaft motor 21 is installed in the rack 25, two output ends of the double-shaft motor 21 are connected with rotating shafts 22, the end portions of the two rotating shafts 22 are provided with insertion holes 23, a clamping groove 24 is arranged in each insertion hole 23, the two sides of the rack 25 are connected with supports 26, the supports 26 are fixedly connected with the box body 1, the two supports 26 are connected with hanging arms 27, the two hanging arms 27 are connected with limiting rings 28, the number of the limiting rings 28 on each hanging arm 27 is two, a switching part 3 is arranged on the support 26, the switching part 3 comprises 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 a rotating disc 32, the rotating disc 32 is connected with an insertion rod 33, the insertion rod 33 is connected with a 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 sleeved with a sleeve disc 35, the sleeve disc 35 is connected with a locking rod 36, the two limiting rings 28 on one of the hanging arms 27 are rotatably connected with flanges 37, the two flanges 37 are fixedly sleeved with rotating rings 38, the two rotating rings 38 are provided with locking holes 39 corresponding to the locking rod 36.

[0023] In the embodiment, the number of the switching parts 3 is two, another switching part 3 is installed on the limiting ring 28 of the other support 26 and the other hanging arm 27, and the two switching parts 3 are symmetrically arranged, and each rotating shaft 22 and the movable end of the electric push rod 31 are movably penetrated through the limiting ring 28 adjacent to itself.

[0024] It is worth noting that the support 26 is provided with a positioning part 4, the positioning part 4 comprises a screw rod 41, the screw rod 41 is rotatably connected with one of the supports 26, the box body 1 is connected with a limiting plate 42, the end portion of the screw rod 41 is rotatably connected with the limiting plate 42, the screw rod 41 and one of the flanges 37 are sleeved with spur gears 43, the two spur gears 43 are meshed, the box body 1 is attached with a U-shaped arm 44, the U-shaped arm 44 is threadedly sleeved on the screw rod 41, the two ear ends of the U-shaped arm 44 are connected with sealing plates 45, the number of the positioning parts 4 is two, another positioning part 4 is installed on the other support 26, and the two positioning parts 4 are symmetrically arranged, one side of the ear end of one of the U-shaped arms 44 is installed with an infrared sensor 8, one side of the ear end of the other U-shaped arm 44 is installed 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 staggered.

[0025] The box body 1 is provided with a clamping compensation part 5, the clamping compensation part 5 comprises a through hole 51, the through hole 51 is arranged on one side of the box body 1, a supporting plate 52 is arranged in the box body 1, a sliding groove 53 is arranged in the box body 1, two clamping arms 54 are attached to the box body 1, the two clamping arms 54 are symmetrically arranged, the side of the two clamping arms 54 close to each other is an arc surface structure, the end of the two clamping arms 54 is connected with a sliding arm 55, 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 body 1 and the supporting plate 52 respectively, the number of the clamping compensation part 5 is two, another clamping compensation part 5 is arranged on the other side of the box body 1, the two clamping compensation parts 5 are symmetrically arranged, 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, the adjusting hole is in communication with the box body 1, and each sealing plate 45 is slidably connected in the corresponding adjusting hole.

[0026] It is worth mentioning that the box body 1 is provided with a pressure regulating part 6, the pressure regulating part 6 comprises two rotating rods 61, the two rotating rods 61 are rotatably connected to the box body 1, one end of the two rotating rods 61 is movably penetrated through the box body 1, the outer wall of the flange 37 on the two rotating shafts 22 and the penetrated end of the two rotating rods 61 are both sleeved with bevel gears 62, every two adjacent bevel gears 62 are meshed with each other, the other end of the two rotating rods 61 is a threaded structure and is threadedly sleeved with a rod sleeve 63, the end of the two rod sleeves 63 is fixedly connected with a cross pressure arm 64.

[0027] The cross pressure arm 64 is provided with a pressure compensation part 7, the pressure compensation part 7 comprises four outer rods 71, the four outer rods 71 are fixedly connected to the inner wall of the box body 1, the inner wall of the four outer rods 71 is slidably connected with an inner rod, the end of the four inner rods is fixedly connected with a pressing plate 72, the pressing plate 72 is elastically connected with a tension spring 73 between the four outer rods 71, the two sides of the pressing plate 72 are connected with an expansion joint 74 between the two supporting plates 52, the two sides of the pressing plate 72 are provided with pressure relief holes 75, the bottom of the box body 1 is in communication with a gas injection pipe 10 and a pressure regulating valve 11, a conveying roller 12 is rotatably connected in the box body 1, the conveying roller 12 is provided with a knitted fabric 13, the two ends of the knitted fabric 13 are respectively penetrated between the two pressure relief holes 75 and the two clamping arms 54 on the same side and are respectively penetrated through the through holes 51 on the two sides of the box body 1.

[0028] A production process of a warm and breathable knitted fabric, according to the above-mentioned production equipment of a warm and breathable knitted fabric, comprising the following steps: S1: the knitted fabric 13 is penetrated into the box body 1 through the through hole 51 on one side, the infrared sensor 8 is blocked to generate an induction signal, the electric push rod 31 is driven to shrink by the PLC controller, the lock rod 36 is unlocked to drive the rotating ring 38 on the bevel gear 62, and the lock hole 39 of the rotating ring 38 on the spur gear 43 is locked, so as to drive the screw rod 41 to rotate and adjust the position of the U-shaped arm 44, and automatically match the size of the knitted fabric 13; S2: The distance sensor 9 synchronously detects the distance to the knitted fabric 13. When the distance is less than 10 cm, the distance between the U-shaped arm 44 and the knitted fabric 13 is less than 1 mm. The PLC controller drives the electric push rod 31 to extend and unlock the swivel 38 on the spur gear 43, and relock the swivel 38 on the bevel gear 62. S3: The knitted fabric 13 is elastically clamped by the clamping arm 54 and continuously conveyed in the box 1 via the conveying roller 12. The dual-axis motor 21 drives the rotating shaft 22 to rotate and drives the rotating rod 61 to rotate via the bevel gear 62, prompting the cross-pressing arm 64 to push the pressing plate 72 to move vertically, thereby driving the telescopic joint 74 to reduce the volume of the space in the box 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 inside and outside the box body 1. The pressure of the pressure plate 72 descends, causing the inert gas pressure to penetrate the horizontal section of the knitted fabric 13. The inert gas passes through the pressure relief hole 75 and applies different degrees of pressure to the inlet and outlet sections of the knitted fabric 13. The pressure regulating valve 11 and the existing pressure sensor can detect the pressure change in the box body 1, and the dual-axis motor 21 is driven to rotate forward or reverse through the PLC controller. The vertical movement distance of the pressure plate 72 is further changed by the elasticity of the tension spring 73 to adjust the pressure of the inert gas in the box body 1 on the knitted fabric 13.

[0029] Working principle: the control part 2 provides power for the entire equipment and plays a supporting role. Its dual-axis motor 21 is connected to the switching part 3 through the rotating shaft 22. The switching part 3 realizes power transmission through gear meshing with the positioning part 4 and the pressure regulating part 6 respectively. The sealing plate 45 of the positioning part 4 cooperates with the through hole 51 of the clamping compensation part 5, and the cross pressure arm 64 of the pressure regulating part 6 is connected with the pressure plate 72 of the pressure compensation part 7. The pressure compensation part 7 and the clamping compensation part 5 are both located in the box body 1, and together constitute the core space for fabric processing.

[0030] When the knitted fabric 13 passes through the side hole 51 and enters the box 1, the infrared sensor 8 is blocked and generates an induction signal. The signal drives the electric push rod 31 of the switching part 3 to retract through the PLC controller. The contraction of the electric push rod 31 drives the locking rod 36 to unlock the swivel 38 on the bevel gear 62, and at the same time locks the lock hole 39 of the swivel 38 on the spur gear 43, so that the power of the dual-axis motor 21 is transmitted to the screw 41 of the positioning part 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 realizing the sealing adaptation of the fabric inlet and outlet. When the distance sensor 9 detects that the distance to the fabric is less than the preset threshold, the PLC controller drives the electric push rod 31 to extend, unlock the swivel 38 on the spur gear 43, and re-lock the swivel 38 on the bevel gear 62, completing the positioning adjustment and switching to the pressure adjustment mode.

[0031] The knitted fabric 13 is continuously conveyed under the driving of the conveying roller 12 and is elastically clamped by the clamping arms 54 in the clamping compensation part 5. The spring 56 elastically adjusts the clamping arms 54 to the thickness change of the fabric, so as to ensure stable conveying of the fabric. The double-shaft motor 21 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the rotating rod 61 of the pressure adjusting part 6 to rotate through the bevel gear 62. The rotating rod 61 drives the rod sleeve 63 and the cross-shaped pressing arm 64 to move, and the pressing plate 72 of the pressure compensation part 7 is vertically moved to reduce the space volume in the box 1.

[0032] The box 1 is pre-filled with inert gas through the gas injection pipe 10. The inert gas pressure penetrates the horizontal section of the knitted fabric 13 when the pressing plate 72 is lowered. Meanwhile, the inert gas penetrates the inlet and outlet sections of the knitted fabric 13 to apply different pressures. The pressure adjusting valve 11 and the pressure sensor detect the pressure change in the box 1. The PLC controller drives the double-shaft motor 21 to rotate forward or reversely according to the detection result. The elastic adjustment of the vertical movement distance of the pressing plate 72 by the tension spring 73 precisely controls the pressure of the inert gas in the box 1 on the knitted fabric 13, so as to optimize the warmth-retaining and breathable performance of the fabric.

[0033] It should be noted that the relational terms herein such as first and second, and the like, are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the identified element.

Claims

1. A production device for warm and breathable knitted fabrics, comprising a box (1), characterized in that: The box (1) is provided with a control unit (2), the control unit (2) includes a dual-axis motor (21), a frame (25) is installed on the box (1), the dual-axis motor (21) is installed in the frame (25), the two output ends of the dual-axis motor (21) are connected to the rotating shaft (22), the ends of the two rotating shafts (22) are provided with a socket (23), each socket (23) is provided with a slot (24), both sides of the frame (25) are connected to a bracket (26), the bracket (26) is fixedly connected to the box (1), the two brackets (26) are connected to a suspension arm (27), the two suspension arms (27) are connected to a limiting ring (28), and the number of the limiting rings (28) on each suspension arm (27) is two; The bracket (26) is provided with a switching part (3), and 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). The turntable (32) is connected to a plug rod (33). The plug rod (33) is connected to a clamping arm (34). The plug rod (33) is slidably connected in the plug hole (23). The clamping arm (34) is slidably connected in the clamping groove (24). A sleeve disc (35) is provided on the turntable (32). A locking rod (36) is connected to the sleeve disc (35). Two limiting rings (28) on one of the suspension arms (27) are both rotatably connected to a flange (37). A rotating ring (38) is fixedly provided on the two flanges (37). Lock holes (39) corresponding to the locking rod (36) are provided on the two rotating rings (38).

2. The production equipment of a warm and breathable knitted fabric according to claim 1, characterized in that: There are two switching parts (3), and another switching part (3) is mounted on the limiting ring (28) of another bracket (26) and another suspension arm (27). The two switching parts (3) are symmetrically arranged with each other, and the movable end of each rotating shaft (22) and electric push rod (31) is movable and passes through the limiting ring (28) adjacent to itself.

3. The production equipment of a warm and breathable knitted fabric according to claim 2, characterized in that: A positioning portion (4) is provided on the bracket (26), and the positioning portion (4) includes a screw (41), and the screw (41) is rotatably connected to one of the brackets (26). A limiting plate (42) is connected to the box (1), and the end of the screw (41) is rotatably connected to the limiting plate (42). A spur gear (43) is sleeved on the screw (41) and one of the flanges (37), and the two spur gears (43) are meshed with each other. A U-shaped arm (44) is attached to the box (1), and the U-shaped arm (44) is threadedly sleeved on the screw (41). Both ear ends of the U-shaped arm (44) are connected to a sealing plate (45).

4. The production equipment of a warm and breathable knitted fabric according to claim 3, characterized in that: There are two positioning parts (4), and the other positioning part (4) is mounted on the other bracket (26). The two positioning parts (4) are symmetrically arranged with each other. An infrared sensor (8) is mounted on one ear end of one U-shaped arm (44), and a distance sensor (9) is mounted on one ear end of the other U-shaped arm (44). The infrared sensor (8) and the distance sensor (9) are aligned, and the sensing end of the infrared sensor (8) and the sensing end of the distance sensor (9) are staggered.

5. The production equipment of the warm and breathable knitted fabric according to claim 4, characterized in that: The box body (1) is provided with a clamping compensation portion (5), the clamping compensation portion (5) includes a through hole (51), the through hole (51) is opened on one side of the box body (1), a support plate (52) is installed in the box body (1), a slide groove (53) is opened in the box body (1), two clamping arms (54) are fitted in the box body (1), the two clamping arms (54) are symmetrically arranged, the sides of the two clamping arms (54) close to each other are both arc-shaped structures, the ends of the two clamping arms (54) are connected to a sliding arm (55), the two clamping arms (54) are slidably connected to the slide groove (53) through the sliding arm (55), and the two clamping arms (54) are elastically connected to the inner wall of the box body (1) and the support plate (52) by a spring (56).

6. The production equipment of the warm and breathable knitted fabric according to claim 5, characterized in that: There are two clamping compensation parts (5), and the other clamping compensation part (5) is installed on the other side of the box body (1). The two clamping compensation parts (5) are symmetrically arranged with each other. 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 box body (1), and each sealing plate (45) is slidably connected in the corresponding adjustment hole.

7. The production equipment of the warm and breathable knitted fabric according to claim 6, characterized in that: A pressure regulating portion (6) is provided in the box body (1), and the pressure regulating portion (6) includes two rotating rods (61). The two rotating rods (61) are both rotatably connected to the box body (1), and one end of the two rotating rods (61) is movable through the box body (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 both sleeved with bevel gears (62), and every two adjacent bevel gears (62) are meshed with each other. The other ends of the two rotating rods (61) are both threaded structures and are threadedly sleeved with rod sleeves (63), and the ends of the two rod sleeves (63) are fixedly connected with cross pressure arms (64).

8. The production equipment of the warm and breathable knitted fabric according to claim 7, characterized in that: A pressure compensation portion (7) is provided on the cross pressure arm (64), and the pressure compensation portion (7) includes four outer rods (71), the four outer rods (71) are fixedly connected to the inner wall of the box body (1), the inner walls of the four outer rods (71) are slidably connected to the inner rods, the ends of the four inner rods are fixedly connected to the pressure plate (72), the pressure plate (72) and the four outer rods (71) are elastically connected with tension springs (73), both sides of the pressure plate (72) and the two support plates (52) are connected with telescopic joints (74), and both sides of the pressure plate (72) are provided with pressure relief holes (75).

9. The production equipment of the warm and breathable knitted fabric according to claim 8, characterized in that: The bottom of the box (1) is connected to and installed with an air injection pipe (10) and a pressure regulating valve (11); a conveying roller (12) is rotatably connected inside the box (1); the conveying roller (12) is provided with a knitted fabric (13); the two ends of the knitted fabric (13) respectively pass through the two pressure relief holes (75) and the two clamping arms (54) on the same side and respectively pass through the through holes (51) on both sides of the box (1).

10. A production process for a warm and breathable knitted fabric, the production equipment for a warm and breathable knitted fabric according to claim 9, characterized in that: The following steps are involved: S1: The knitted fabric (13) passes through the through hole (51) on one side and enters the box (1). The infrared sensor (8) is blocked and generates an induction signal, which drives the electric push rod (31) to retract through the PLC controller, prompting the locking rod (36) to unlock the rotating ring (38) on the bevel gear (62) and lock the locking hole (39) of the rotating ring (38) on the spur gear (43), thereby driving the screw (41) to rotate and adjust the position of the U-shaped arm (44) to automatically match the size of the knitted fabric (13); S2: The distance sensor (9) synchronously detects the distance from the knitted fabric (13). When the distance is less than 10 cm, the interval between the U-shaped arm (44) and the knitted fabric (13) is less than 1 mm. The PLC controller drives the electric push rod (31) to extend and unlock the swivel (38) on the spur gear (43), and relock the swivel (38) on the bevel gear (62). S3: The knitted fabric (13) is elastically clamped by the clamping arm (54) and continuously conveyed in the box (1) through 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), prompting 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 in the box (1); S4: The box (1) is pre-filled with inert gas through the gas injection pipe (10), so that a pressure difference is generated inside and outside the box (1). The pressure of the pressure plate (72) is lowered, so that 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 different degrees of pressure to the inlet and outlet sections of the knitted fabric (13). The pressure change in the box (1) can be detected by the pressure regulating valve (11) and the existing pressure sensor, and the dual-axis motor (21) is driven to rotate forward or reverse through the PLC controller. The vertical movement distance of the pressure plate (72) is further changed by the elasticity of the tension spring (73) to adjust the pressure of the inert gas in the box (1) on the knitted fabric (13).

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