Warp knitting process and warp knitting machine for warp knitting screen cloth for automobile seat

Abstract

The invention provides a warp knitting technology and a warp knitting machine for warp knitting mesh cloth for an automobile seat, and relates to the technical field of warp knitting machines, the warp knitting mesh cloth for the automobile seat comprises a rack, a knitting system, a guide bar transverse moving system and a transmission system.The guide bar transverse moving system comprises a transverse moving cam device, a swing lever, a transverse moving roller device, an indexing base and a guide bar plate, and the swing lever is rotatably installed on the rack; the transverse moving roller device is rotatably installed on the swing lever and rolls along the outer surface of the transverse moving cam device, the swing lever is in transmission connection with the guide bar plate, the transverse moving roller device comprises an inflation wheel, a pushing shaft, a hollow shaft and a plurality of supporting frames, the hollow shaft is sleeved with the inflation wheel in a sealed mode, the pushing shaft is rotatably installed in the hollow shaft, and the supporting frames are arranged on the hollow shaft. A torsion spring is arranged between the pushing shaft and the hollow shaft, a pushing rod pushing inclined face is arranged on the outer side of the pushing shaft, the supporting frames are installed on the hollow shaft in a sliding mode, the supporting frames are in transmission connection with the corresponding pushing inclined face of the hollow shaft, the supporting frames press the inner side of the inflation wheel, and weaving flaws are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of warp knitting machines, and in particular to a warp knitting process and a warp knitting machine for warp knitted mesh fabrics for automobile seats. Background Art

[0002] Since warp knitted mesh for car seats is an important part of car interiors and is in direct contact with the human body, surface quality is very important and defects must be eliminated. The mesh is woven using a warp knitting machine. One or several groups of parallel yarns are fed into the machine in the warp direction, forming loops on all working needles at the same time to form a knitted fabric.

[0003] Warp knitting machines are mature equipment, which are mainly composed of weaving mechanism, comb bar shoveling mechanism, warp feeding mechanism, pulling and winding mechanism and transmission mechanism.

[0004] The knitting mechanism consists of a needle bed, sinker bed, and pressure plate, typically driven by a cam or eccentric connecting rod. Cams are often used in lower-speed warp knitting machines with complex knitting components. Eccentric connecting rods are widely used in high-speed warp knitting machines because they offer smooth transmission, are easy to manufacture, and minimize wear and noise at high speeds.

[0005] The bar traverse mechanism moves the bar transversely during the knitting process, aligning the warp yarns with the needles to create a knitted fabric with a defined structure. It is typically available in two types: a pattern plate mechanism and a cam mechanism. The pattern plate mechanism uses a chain of pattern plates of defined shapes and sizes, connected to the fabric's structure, to traverse the bar. This mechanism is suitable for knitting complex patterns and facilitates pattern changes. In a cam mechanism, the cam is designed to align with the desired pattern of bar traverse, resulting in smoother transmission and the ability to accommodate higher knitting speeds.

[0006] The warp let-off mechanism unwinds the warp yarns on the warp beam and feeds them into the weaving area. The function of the pulling and winding mechanism is to pull the fabric out of the weaving area at a predetermined speed and wind it into a roll.

[0007] The comb bar transverse movement mechanism accurately controls the transverse movement position of the comb bar, which is an important step to ensure the yarn padding. If the transverse movement of the comb bar is inaccurate, it will easily cause the yarn padding to fail and cause defects. Summary of the Invention

[0008] The invention provides a warp knitting process and a warp knitting machine for a warp knitted mesh for an automobile seat, which can prevent the warp knitted mesh from having defects.

[0009] The present invention provides a warp knitting machine for warp knitted mesh fabric for automobile seats, which comprises a frame, a weaving system, a comb bar transverse movement system, a warp let-off system, a pulling and winding system and a transmission system. The weaving system is installed on the frame in a liftable manner, the transmission system is installed on the frame, the transmission system is connected to the weaving system in a transmission manner, the comb bar transverse movement system is installed on the frame, the comb bar transverse movement system is installed on the upper side of the weaving system, the warp let-off system is installed on the upper side of the frame, the pulling and winding system is installed on the frame, the comb bar transverse movement system comprises a transverse movement cam device, a swing lever, a transverse movement roller device, a dividing seat and a comb bar plate, the dividing seat is installed on the frame through a reference shaft, the comb bar plate is slidably installed on the dividing seat, and a plurality of through-holes are provided on the lower side of the comb bar plate. A yarn guide needle is provided, the transverse cam device is rotatably mounted on the frame, the swing lever is rotatably mounted on the frame, the transverse roller device is rotatably mounted on the swing lever, the transverse roller device rolls along the outer surface of the transverse cam device, the swing lever is transmission-connected to the comb plate, the transverse roller device includes an inflatable wheel, a driving shaft, a hollow shaft and several support frames, the inflatable wheel sealing sleeve is arranged outside the hollow shaft, the driving shaft is rotatably mounted inside the hollow shaft, a torsion spring is provided between the driving shaft and the hollow shaft, a push rod pushing inclined surface is provided on the outside of the driving shaft, each support frame is slidably mounted on the hollow shaft, each support frame is transmission-connected to the pushing inclined surface corresponding to the hollow shaft, and the support frame presses the inner side of the inflatable wheel.

[0010] Preferably, the weaving system includes a needle bed plate, a knockout plate, a plurality of sinkers and a plurality of knitting needles, each of the knitting needles is mounted on the needle bed plate, the needle bed plate is mounted on the frame in a liftable manner, the needle bed plate is connected to the transmission system, the knockout plate is mounted on the frame, each of the knitting needles is lifted and slid along the knockout plate, and the sinker slides horizontally along the needle bed plate.

[0011] Preferably, the warp let-off system comprises a plurality of warp beam cores.

[0012] Preferably, the pulling and winding system includes a winding shaft and a winding motor, the winding shaft is rotatably mounted on a frame, the winding motor is mounted on the frame, and the winding shaft is transmission-connected to the winding motor.

[0013] Preferably, the transmission system includes a transmission cam drive shaft, a lifting crankshaft and a lifting connecting rod. The transmission cam drive shaft is rotatably mounted on the frame, and the lifting crankshaft is in transmission connection with the transmission cam drive shaft. The transmission cam drive shaft is provided with a cam structure formed by a guide groove, and the lifting crankshaft is provided with a guide wheel adapted to the guide groove, and the guide wheel is rotatably mounted on a transmission arm preset on the lifting crankshaft. The two ends of the lifting connecting rod are respectively rotatably mounted on the transmission arm of the lifting crankshaft and the weaving system.

[0014] Preferably, the transverse cam device includes a transverse wheel, a chain block and a transverse drive motor, the chain block is installed on the transverse wheel, the transverse drive motor is installed on the frame, the transverse wheel is rotatably installed on the frame, the transverse drive motor is connected to the transverse wheel, the pneumatic wheel rolls along the surface of the chain block, and the outer surface of the chain block forms a wavy pattern.

[0015] Preferably, the support frame includes a support rod and a support plate, the support rod slides along the hollow shaft, the support plate is mounted on the support rod, and the support plate presses the inner side of the pneumatic wheel.

[0016] The warp knitting process of warp knitted mesh fabric for automobile seats includes the following steps: S1: Let-off system lets off the warp; S2: The comb bar traverse system moves horizontally, driving the yarn to lay around the weaving system; S3: The transmission system drives the knitting system up and down, making the yarn into a loop; S4: The pneumatic wheel is inflated according to the degree of wear, and the push shaft rotates along with the expansion of the pneumatic wheel driven by the torsion spring. After the pneumatic wheel is inflated, the push shaft pushes the support frame toward the outside of the pneumatic wheel to maintain the outer diameter of the pneumatic wheel. The pneumatic wheel rolls along the transverse cam device, and the swing lever pushes the comb plate to move transversely.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The weaving system is installed on the frame in a liftable manner. The lifting of the weaving system realizes the yarn looping. The transmission system is installed on the frame. The transmission system is connected to the weaving system, and the transmission system drives the weaving system to lift and lower. The comb bar transverse movement system is installed on the frame. The comb bar transverse movement system is installed on the upper side of the weaving system. The transverse movement of the comb bar transverse movement system drives the yarn to wrap around the weaving system. The warp feeding system is installed on the upper side of the frame to supply yarn to the comb bar transverse movement system, so that when the comb bar transverse movement system moves transversely around the weaving system, the yarn is drawn out from the warp feeding system position. The pulling and winding system is installed on the frame to pull away the cloth woven by the weaving system.

[0018] The comb bar transverse movement system includes a transverse movement cam device, a swing lever, a transverse movement roller device, a dividing seat and a comb bar plate. The dividing seat is installed on the frame through a reference shaft, the comb bar plate is slidably installed on the dividing seat, the transverse movement cam device is rotatably installed on the frame, the swing lever is rotatably installed on the frame, the transverse movement roller device is rotatably installed on the swing lever, the transverse movement roller device rolls along the outer surface of the transverse movement cam device, and when the transverse movement cam device rotates, the transverse movement roller device rolls along the outer surface of the transverse movement cam device and thereby drives the swing lever to swing. The swing lever is connected to the comb bar plate, driving the comb bar plate to move transversely along the dividing seat, so that the comb bar plate drives the yarn to be wound around the weaving system. The transverse movement roller device includes an inflatable wheel, a driving shaft, a hollow shaft and Several support frames and an inflatable wheel sealing sleeve are arranged outside the hollow shaft. The inflatable wheel is inflated according to the degree of wear to prevent defects in the warp knitted mesh. The driving shaft is rotatably installed in the hollow shaft. A torsion spring is provided between the driving shaft and the hollow shaft. The driving shaft rotates as the inflatable wheel expands under the drive of the torsion spring. A push rod driving inclined surface is provided on the outer side of the driving shaft. Each support frame is slidably installed on the hollow shaft. Each support frame is connected to the driving inclined surface corresponding to the hollow shaft through transmission. The diameter of the inflatable wheel expands after inflation, and each support frame loses the support of the inner wall of the inflatable wheel. The driving shaft rotates as the inflatable wheel expands under the drive of the torsion spring. After the inflatable wheel is inflated, the driving shaft pushes the support frame toward the outside of the inflatable wheel, so that each support frame maintains pressure on the inner wall of the inflatable wheel to maintain the outer diameter of the inflatable wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0022] Figure 3 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the coordination between the chain block and the transverse roller device.

[0024] Figure 5 It is a schematic diagram of the structure of the transverse roller device.

[0025] Figure 6 Schematic diagram of the hollow shaft structure.

[0026] Figure 7 This is a schematic diagram of the structure of the transverse roller device (without the pneumatic wheel installed).

[0027] Reference numerals: 1. Frame; 2. Knitting system; 21. Needle bed plate; 22. Knitting plate; 23. Knitting needles; 3. Comb traverse system; 31. Traverse cam device; 311. Traverse wheel; 312. Chain block; 32. Swing lever; 33. Traverse roller device; 331. Pneumatic wheel; 332. Propelling shaft; 333. Hollow shaft; 334. Support frame; 3341. Support rod; 3342. Support plate; 34. Indexing seat; 35. Comb plate; 36. Reference axis; 4. Transmission system; 41. Transmission cam drive shaft; 42. Lifting crankshaft; 43. Lifting connecting rod. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Furthermore, the term "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] The following combination Figure 1 — Figure 7 As shown, this embodiment provides a warp knitting machine for warp knitted mesh fabric for automobile seats, comprising a frame 1, a weaving system 2, a comb sliding system 3, a warp feeding system, a pulling and winding system and a transmission system 4. The weaving system 2 is mounted on the frame 1 in a liftable manner, and the lifting and lowering of the weaving system 2 realizes the yarn looping. The transmission system 4 is mounted on the frame 1, and the transmission system 4 is connected to the weaving system 2 for transmission, and the transmission system 4 drives the weaving system 2 to lift and lower. The comb sliding system 3 is mounted on the frame 1, and the comb sliding system 3 is mounted on the upper side of the weaving system 2. The lateral movement of the comb sliding system 3 drives the yarn to be wound around the weaving system 2. The warp feeding system is mounted on the upper side of the frame 1 to supply yarn to the comb sliding system 3, so that when the comb sliding system 3 moves laterally around the weaving system 2, the yarn is drawn out from the warp feeding system position, and the pulling and winding system is mounted on the frame 1 to pull away the cloth woven by the weaving system 2.

[0033] The comb bar transverse movement system 3 includes a transverse movement cam device 31, a swing lever 32, a transverse movement roller device 33, a dividing seat 34 and a comb bar plate 35. The dividing seat 34 is installed on the frame 1 through a reference shaft 36. The comb bar plate 35 is slidably installed on the dividing seat 34. The reference shaft 36 is rotatably installed on the frame 1 through a bearing, so that the comb bar plate 35 has the ability to swing in a direction perpendicular to the direction of the needle bed plate 21 mentioned below. While the comb bar plate 35 has the ability to transversely move along the dividing seat 34, it can also move longitudinally on the upper side of the weaving system 2 to achieve yarn padding. A number of yarn guide needles with yarn are provided on the lower side of the comb bar plate 35. The yarn guide needles are When the comb plate 35 moves laterally, it drives the yarn to be laid around the weaving system 2. The transverse cam device 31 is rotatably mounted on the frame 1. The swing lever 32 is rotatably mounted on the frame 1. The transverse roller device 33 is rotatably mounted on the swing lever 32. The transverse roller device 33 rolls along the outer surface of the transverse cam device 31. When the transverse cam device 31 rotates, the transverse roller device 33 rolls along the outer surface of the transverse cam device 31 and thereby drives the swing lever 32 to swing. The swing lever 32 is transmission-connected to the comb plate 35, driving the comb plate 35 to move laterally along the indexing seat 34, so that the comb plate 35 drives the yarn to be laid around the weaving system 2.

[0034] The transverse roller device 33 includes an inflatable wheel 331, a driving shaft 332, a hollow shaft 333 and several support frames 334. The sealing sleeve of the inflatable wheel 331 is arranged outside the hollow shaft 333. The inflatable wheel 331 is inflated according to the degree of wear, so that the swing angle of the swing lever 32 is accurate, ensuring the reliability of the yarn padding and preventing defects in the warp knitted mesh. The driving shaft 332 is rotatably installed in the hollow shaft 333 through a pin shaft. The rotation axis of the driving shaft 332 coincides with the rotation axis of the hollow shaft 333. A torsion spring is provided between the driving shaft 332 and the hollow shaft 333. A push rod is provided on the outside of the driving shaft 332 to push the inclined surface. The frame 334 is slidably mounted on the hollow shaft 333, and each support frame 334 is connected to the corresponding pushing inclined surface of the hollow shaft 333. After the inflatable wheel 331 is inflated, the diameter expands, and each support frame 334 loses the support of the inner wall of the inflatable wheel 331. The pushing shaft 332 rotates along with the expansion of the inflatable wheel 331 driven by the torsion spring. After the inflatable wheel 331 is inflated, the pushing shaft 332 pushes the support frame 334 toward the outside of the inflatable wheel 331, so that each support frame 334 maintains pressing the inner wall of the inflatable wheel 331, maintains the outer diameter of the inflatable wheel 331, ensures the accuracy of the lateral position of the comb plate 35, and prevents defects.

[0035] The knitting system 2 includes a needle bed plate 21, a knockout plate 22, a sinker and a number of knitting needles 23. Each knitting needle 23 is installed on the needle bed plate 21. The needle bed plate 21 is installed on the frame 1 in a liftable manner. The needle bed plate 21 is connected to the transmission system 4 for transmission to achieve lifting. The knockout plate 22 is installed on the frame 1. Each knitting needle 23 rises and slides along the knockout plate 22. The knockout plate 22 supports the coil when the knitting needle 23 descends, which facilitates coil formation. The sinker slides horizontally along the needle bed plate 21. When each knitting needle 23 is in the ascending state, the sinker extends out to press the old coil when the coil is being withdrawn to prevent the old coil from following the knitting needle 23 upward. The cooperation of the knitting needle 23, the knockout plate 22 and the sinker realizes coil formation, which belongs to the existing technology available on the market and will not be repeated here.

[0036] The warp let-off system includes several warp beam cores that feed yarn when the guide bar slid system 3 lays the yarn.

[0037] The pulling and winding system includes a winding shaft and a winding motor. The winding shaft is rotatably mounted on the frame 1, and the winding motor is mounted on the frame 1. The winding shaft is transmission-connected to the winding motor to realize the winding of the formed cloth.

[0038] The transmission system 4 includes a transmission cam drive shaft 41, a lifting crankshaft 42 and a lifting connecting rod 43. The transmission cam drive shaft 41 is rotatably mounted on the frame 1, and the lifting crankshaft 42 is transmission-connected to the transmission cam drive shaft 41. The transmission cam drive shaft 41 is provided with a cam structure formed by a guide groove, and the lifting crankshaft 42 is provided with a guide wheel adapted to the guide groove. The guide wheel is rotatably mounted on a transmission arm preset on the lifting crankshaft 42, and both ends of the lifting connecting rod 43 are rotatably mounted on the transmission arm of the lifting crankshaft 42 and the weaving system 2 respectively. When the transmission cam drive shaft 41 rotates, the guide groove rotates accordingly, and the guide wheel moves along the direction of the guide groove, so that the transmission arm preset on the lifting crankshaft 42 swings back and forth, thereby realizing the reciprocating lifting and lowering of the weaving system 2, and realizing the weaving loop formation.

[0039] The transverse cam device 31 includes a transverse wheel 311, a chain block 312 and a transverse drive motor. The chain block 312 is installed on the transverse wheel 311, the transverse drive motor is installed on the frame 1, and the transverse wheel 311 is rotatably installed on the frame 1. The transverse drive motor is connected to the transverse wheel 311 for transmission, thereby driving the transverse wheel 311 to rotate. The pneumatic wheel 331 rolls along the surface of the chain block 312, and a wavy pattern is formed on the outer surface of the chain block 312. The pneumatic wheel 331 rolls along the surface of the chain block 312, thereby driving the swing lever 32 to swing.

[0040] The support frame 334 includes a support rod 3341 and a support plate 3342. The support rod 3341 slides along the hollow shaft 333. The support plate 3342 is installed on the support rod 3341. The support plate 3342 presses the inner side of the inflatable wheel 331. The support plate 3342 fits the inner side of the inflatable wheel 331 to ensure the stability of the inflatable wheel 331 when rolling along the chain block 312.

[0041] The warp knitting process of warp knitted mesh fabric for automobile seats includes the following steps: S1: Let-off system lets off the warp; S2: The comb bar traverse system 3 moves horizontally, driving the yarn to lay around the weaving system 2; S3: The transmission system 4 drives the knitting system 2 to move up and down, so that the yarn is looped; S4: The pneumatic wheel 331 is inflated according to the degree of wear, and the driving shaft 332 rotates along with the expansion of the pneumatic wheel 331 driven by the torsion spring. After the pneumatic wheel 331 is inflated, the driving shaft 332 pushes the support frame 334 toward the outside of the pneumatic wheel 331 to maintain the outer diameter of the pneumatic wheel 331. The pneumatic wheel 331 rolls along the transverse cam device 31, and the swing lever 32 pushes the comb plate 35 to move transversely.

[0042] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. Warp knitting machine for warp knitted mesh fabric for automobile seats, characterized in that: The invention comprises a frame (1), a weaving system (2), a comb bar transverse movement system (3), a warp let-off system, a pulling and winding system and a transmission system (4); the weaving system (2) is installed on the frame (1) in a liftable manner; the transmission system (4) is installed on the frame (1); the transmission system (4) is in transmission connection with the weaving system (2); the comb bar transverse movement system (3) is installed on the frame (1); the comb bar transverse movement system (3) is installed on the upper side of the weaving system (2); and the warp let-off system is installed on the upper side of the frame (1). The pulling and winding system is installed on the frame (1), and the comb bar transverse movement system (3) includes a transverse movement cam device (31), a swing lever (32), a transverse movement roller device (33), a dividing seat (34) and a comb bar plate (35). The dividing seat (34) is installed on the frame (1) through a reference shaft (36). The comb bar plate (35) is slidably installed on the dividing seat (34). A plurality of yarn guide needles with yarns are provided on the lower side of the comb bar plate (35). The transverse movement cam device (31) is rotatably installed. The invention relates to a machine frame (1), wherein the swing lever (32) is rotatably mounted on the machine frame (1), and the transverse roller device (33) is rotatably mounted on the swing lever (32). The transverse roller device (33) rolls along the outer surface of the transverse cam device (31). The swing lever (32) is transmission-connected to the comb plate (35). The transverse roller device (33) includes an inflatable wheel (331), a driving shaft (332), a hollow shaft (333) and a plurality of support frames (334). The inflatable wheel (331) is a driving shaft (332), a hollow shaft (333) and a plurality of support frames (334). 31) The sealing sleeve is arranged outside the hollow shaft (333), the driving shaft (332) is rotatably installed in the hollow shaft (333), a torsion spring is provided between the driving shaft (332) and the hollow shaft (333), a push rod driving inclined surface is provided on the outside of the driving shaft (332), each of the support frames (334) is slidably installed on the hollow shaft (333), each of the support frames (334) is transmission-connected with the driving inclined surface corresponding to the hollow shaft (333), and the support frame (334) presses the inner side of the inflatable wheel (331).

2. The warp knitting machine for warp knitted mesh fabric for automobile seats according to claim 1, characterized in that: The knitting system (2) comprises a needle bed plate (21), a knockout plate (22), a plurality of sinkers and a plurality of knitting needles (23), each of the knitting needles (23) being mounted on the needle bed plate (21), the needle bed plate (21) being mounted on the frame (1) in a manner such that it can be lifted or lowered, the needle bed plate (21) being in transmission connection with the transmission system (4), the knockout plate (22) being mounted on the frame (1), each of the knitting needles (23) being lifted and slid along the knockout plate (22), and the sinkers being slid horizontally along the needle bed plate (21).

3. The warp knitting machine for warp knitted mesh fabric for automobile seats according to claim 1, characterized in that: The warp let-off system comprises a plurality of warp beam cores.

4. The warp knitting machine for warp knitted mesh fabric for automobile seats according to claim 1, characterized in that: The pulling and winding system comprises a winding shaft and a winding motor, wherein the winding shaft is rotatably mounted on a frame (1), the winding motor is mounted on the frame (1), and the winding shaft is transmission-connected to the winding motor.

5. The warp knitting machine for warp knitted mesh fabric for automobile seats according to claim 1, characterized in that: The transmission system (4) comprises a transmission cam drive shaft (41), a lifting crankshaft (42) and a lifting connecting rod (43); the transmission cam drive shaft (41) is rotatably mounted on the frame (1); the lifting crankshaft (42) is in transmission connection with the transmission cam drive shaft (41); the transmission cam drive shaft (41) is provided with a cam structure formed by a guide groove; the lifting crankshaft (42) is provided with a guide wheel adapted to the guide groove; the guide wheel is rotatably mounted on a transmission arm preset on the lifting crankshaft (42); and both ends of the lifting connecting rod (43) are rotatably mounted on the transmission arm of the lifting crankshaft (42) and the weaving system (2), respectively.

6. The warp knitting machine for warp knitted mesh fabric for automobile seats according to claim 1, characterized in that: The transverse cam device (31) comprises a transverse wheel (311), a chain block (312) and a transverse drive motor; the chain block (312) is mounted on the transverse wheel (311); the transverse drive motor is mounted on a frame (1); the transverse wheel (311) is rotatably mounted on the frame (1); the transverse drive motor is in transmission connection with the transverse wheel (311); the pneumatic wheel (331) rolls along the surface of the chain block (312); and a wave pattern is formed on the outer surface of the chain block (312).

7. The warp knitting machine for warp knitted mesh fabric for automobile seats according to claim 1, characterized in that: The support frame (334) includes a support rod (3341) and a support plate (3342), wherein the support rod (3341) slides along the hollow shaft (333), and the support plate (3342) is mounted on the support rod (3341), and the support plate (3342) presses the inner side of the pneumatic wheel (331).

8. Warp knitting process for warp knitted mesh fabric for automobile seats, characterized in that: The steps include: S1: Let-off system lets off the warp; S2: The comb bar traverse system (3) moves horizontally, driving the yarn to lay around the weaving system (2); S3: The transmission system (4) drives the knitting system (2) to move up and down, so that the yarn is looped; S4: The pneumatic wheel (331) is inflated according to the degree of wear, and the driving shaft (332) rotates along with the expansion of the pneumatic wheel (331) driven by the torsion spring. After the pneumatic wheel (331) is inflated, the driving shaft (332) pushes the support frame (334) toward the outside of the pneumatic wheel (331) to maintain the outer diameter of the pneumatic wheel (331). The pneumatic wheel (331) rolls along the transverse cam device (31), and the swing lever (32) pushes the comb plate (35) to move transversely.

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