Loop rotating bar of a warp knitting machine and warp knitting machine thereof

Abstract

The utility model belongs to the field of textile technology, concretely relates to a circular rotary comb guide bar of warp knitting machine and warp knitting machine thereof, including rotary power assembly, first annular conveying structure, second annular conveying structure, a plurality of needle blocks and a plurality of thread boards, rotary power assembly includes rotary power source and drive shaft, a plurality of needle blocks are arranged in ring on first annular conveying structure and move with first annular conveying structure synchronously, a plurality of thread boards are arranged in ring on second annular conveying structure and move with second annular conveying structure synchronously, the utility model drives the guide needle along annular track and carries out uniform speed rotary motion with rotary power assembly, and a plurality of needle blocks of rotary motion form two comb guide bars, and synchronous work, realize the mutual crossing of loop, also can not damage fabric yarn, greatly improve the strength of fabric, and good tear resistance is good, and good shear resistance is good, and fabric performance is more stable and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of textile technology, specifically relating to a circular rotating comb bar for a warp knitting machine and the warp knitting machine itself. Background Technology

[0002] Chinese Patent Publication No. CN104846540B discloses a yarn loop-forming device for a double-needle bed warp knitting machine, which includes a guide bar lateral movement mechanism. The guide bar lateral movement mechanism includes a guide bar, a guide bar hanger, a hanger shaft, a first support seat, a lateral movement strut, a steel wire rope, and a lateral movement drive device. The guide bar is fixedly installed at the bottom of the guide bar hanger, and the hanger shaft is installed between the guide bar hanger and the first support seat. During knitting, the lateral movement drive device realizes the guide bar to move back and forth laterally along the transverse direction of the warp knitting machine through the lateral movement strut and steel wire rope, which cooperates with the grooved needles to realize the knitting loop-forming action. However, due to the limitation of the stroke of the lateral movement drive device and the hanger shaft, the needle block can only achieve a relatively small number of lateral movement needles, and can only move laterally repeatedly but cannot move laterally continuously, resulting in low strength of the knitted fabric. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to solve the problem that the guide bar in the prior art can only achieve a relatively small number of transverse needles due to the limitation of the transverse drive device and the small shaft stroke of the hanger, and can only transverse repeatedly but cannot transverse continuously, resulting in low strength of the woven fabric, a circular rotating guide bar for a warp knitting machine and the warp knitting machine thereof are provided.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a circular rotating guide bar for a warp knitting machine, comprising: A rotary power assembly includes a rotary power source and a drive shaft connected to the output end of the rotary power source; A first annular conveying structure is connected to the drive shaft via a transmission. The second annular conveying structure is connected to the drive shaft via a transmission. Multiple needle blocks are arranged in a ring on the first annular conveying structure and move synchronously with the first annular conveying structure. And multiple threading plates, which are arranged in a ring on the second ring conveying structure and move synchronously with the second ring conveying structure.

[0005] Furthermore, it also includes a third annular conveying structure that is connected to the drive shaft and a plurality of toggle springs arranged in a ring on the third annular conveying structure and moving synchronously with it.

[0006] Furthermore, the first annular conveying structure, the second annular conveying structure, and the third annular conveying structure are all conveying chain structures, and the first annular conveying structure is a three-row chain structure, while the second annular conveying structure and the third annular conveying structure are double-row chain structures.

[0007] Furthermore, the first, second, and third annular conveying structures are all fixed with upper and lower angle irons for mounting the parts to be conveyed on them.

[0008] Furthermore, it also includes several supporting columns, a crossbeam connecting the several supporting columns, several hanging rods fixed below the crossbeam, and a tie rod fixed to one end of the hanging rod away from the crossbeam, with an annular track formed on the tie rod for the first annular conveying structure to operate.

[0009] Furthermore, the rotary power assembly also includes a driven shaft symmetrically arranged with the drive shaft. The drive shaft passes through the first annular conveying structure, the second annular conveying structure, and the third annular conveying structure and is connected to the drive wheels of the three structures. The driven shaft also passes through the first annular conveying structure, the second annular conveying structure, and the third annular conveying structure and is connected to the driven wheels of the three structures.

[0010] Furthermore, the boom is fixed with a mounting base for mounting a rotary power source, an upper drive guide seat for the drive shaft to pass through and guide it, and an upper driven guide seat for the driven shaft to pass through and guide it. The pull rod is fixed with a lower drive guide seat through which the drive shaft passes to provide guidance, and a lower driven guide seat through which the driven shaft passes to provide guidance.

[0011] Furthermore, a sliding plate is installed between the annular track and the first annular conveying structure.

[0012] Furthermore, an installation plate is provided between the upper and lower angle irons of the first annular conveying structure and the needle block, and a stop is fixed on the pull rod to limit the installation plate.

[0013] A warp knitting machine includes the aforementioned annular rotating guide bar.

[0014] The beneficial effects of this utility model are: This utility model uses a rotary power component to drive the yarn guide needle to rotate at a constant speed along a circular track. The multiple rotating needle blocks form two combs and work synchronously, realizing the mutual crossing of the coils without damaging the fabric yarn, greatly improving the strength of the fabric, with good tear resistance, good shear resistance, and more stable and reliable fabric performance.

[0015] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is a schematic diagram of the support structure in this utility model; Figure 4 yes Figure 3 A magnified view of part B in the middle section; Figure 5 yes Figure 3 A magnified view of part C in the middle; Figure 6 It is a diagram of the movement trajectory of the needle block; In the picture: 1. Rotary power source; 2. Drive shaft; 3. First annular conveyor structure; 4. Second annular conveyor structure; 5. Third annular conveyor structure; 6. Needle block; 601. Yarn guide needle; 7. Yarn threading plate; 8. Heading spring; 9. Upper angle iron; 10. Lower angle iron; 11. Column; 12. Crossbeam; 13. Hanging rod; 1301. Segmented track; 14. Pull rod; 1401. Annular track; 15. Driven shaft; 16. Mounting base; 17. Upper drive guide seat; 18. Upper driven guide seat; 19. Lower drive guide seat; 20. Lower driven guide seat; 21. Liner slide plate; 22. Mounting plate; 2201. Bending part; 23. Edge guard; 24. Grooving needle; 25. Yarn. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components, orientations, and references (e.g., up, down, left, right, etc.) relevant to the present invention and are intended only to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be limiting, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0019] like Figure 1 and Figure 2 As shown, a circular rotating guide bar for a warp knitting machine includes: A rotary power assembly includes a rotary power source 1 and a drive shaft 2 connected to the output end of the rotary power source 1. The rotary power source 1 may be a motor, and a coupling is provided between the output end of the motor and the drive shaft 2. The first annular conveying structure 3 is connected to the drive shaft 2 and can perform annular rotation under the action of the drive shaft 2. It can be, but is not limited to, a conveyor chain structure, a steel belt structure, or a synchronous belt structure. The second annular conveying structure 4 is connected to the drive shaft 2 and can perform annular rotation under the action of the drive shaft 2. It can be, but is not limited to, a conveyor chain structure, a steel belt structure, or a synchronous belt structure. Multiple needle blocks 6 are arranged in a ring on the first annular conveying structure 3 and move synchronously with the first annular conveying structure 3. Each needle block 6 is equipped with multiple yarn guide needles 601. The trajectory diagram is shown below. Figure 6 To make the presentation clear and easy to understand, Figure 6 In the image, needle block 6 is laid out horizontally, while in the actual image, needle block 6 is arranged vertically. And multiple threading plates 7, which are arranged in a ring on the second ring conveying structure 4 and move synchronously with the second ring conveying structure 4, with the threading plates 7 located above the needle block 6.

[0020] When the motor is started, the drive shaft 2 rotates, driving the first annular conveyor structure 3 and the second annular conveyor structure 4 to operate. This causes the needle blocks 6 and the threading plate 7 on them to rotate synchronously and reciprocate at a uniform speed. The yarn 25 passes through the yarn frame and the threading plate 7 in sequence and enters the guide needle 601 of the needle block 6 to cooperate with the groove needle 24 to achieve the knitting action. The multiple rotating needle blocks 6 form two combs and work synchronously, realizing the mutual crossing of the loops without damaging the fabric yarn 25. This greatly improves the strength of the fabric, giving it good tear resistance and shear resistance. The fabric performance is more stable and reliable, making it suitable for high-strength fabrics such as conveyor belts and bulletproof vests.

[0021] In some examples, such as Figure 1 and Figure 2 As shown, it also includes a third annular conveying structure 5 that is connected to the drive shaft 2 and a plurality of lifting springs 8 arranged in a ring on the third annular conveying structure 5 and moving synchronously with it. The lifting springs 8 are used to adjust the tension of the yarn 25. The third annular conveying structure 5 can perform annular rotation under the driving action. It can be, but is not limited to, a conveyor chain structure, a steel belt structure or a synchronous belt structure.

[0022] In some examples, such as Figure 1 and Figure 2 As shown, the first annular conveyor structure 3, the second annular conveyor structure 4, and the third annular conveyor structure 5 are all conveyor chain structures. The first annular conveyor structure 3 is a three-row chain structure, while the second annular conveyor structure 4 and the third annular conveyor structure 5 are double-row chain structures. Since the first annular conveyor structure 3 conveys the yarn guide needle 601, which needs to cooperate with the groove needle 24 to complete the knitting loop action, its precision requirements are high, so a three-row chain structure is required. The second annular conveyor structure 4 and the third annular conveyor structure 5 convey the yarn threading plate 7 and the take-up spring 8, respectively, which have lower precision requirements, so a double-row chain structure can be set. Different levels of conveyor structures can be set according to different conveying objects, thereby reducing the overall cost.

[0023] In some examples, such as Figure 1 and Figure 2 As shown, the first annular conveying structure 3, the second annular conveying structure 4 and the third annular conveying structure 5 are all fixed with upper angle iron 9 and lower angle iron 10 for mounting the parts to be conveyed on them. The upper angle iron 9 and the lower angle iron 10 are far apart from each other and are bent in the opposite direction to each other. The number of upper angle irons 9, lower angle irons 10 and needle blocks 6 on the first annular conveying structure 3 are in one-to-one correspondence, and each needle block 6 is installed on its corresponding upper angle iron 9 and lower angle iron 10. The number of upper angle irons 9, lower angle irons 10 and wire threading plates 7 on the second annular conveying structure 4 are in one-to-one correspondence, and each wire threading plate 7 is installed on its corresponding upper angle iron 9 and lower angle iron 10. The number of upper angle irons 9, lower angle irons 10, and lifting springs 8 on the third annular conveyor structure 5 are one-to-one, and each lifting spring 8 is installed on its corresponding upper angle iron 9 and lower angle iron 10.

[0024] In some examples, such as Figures 3-5 As shown, it also includes several supporting columns 11, a crossbeam 12 connecting the several supporting columns 11, several hanging rods 13 fixed below the crossbeam 12, and a tie rod 14 fixed to one end of the hanging rod 13 away from the crossbeam 12. The tie rod 14 has an annular track 1401 formed on its side for the first annular conveying structure 3 to operate (here, "annular track 1401" is not strictly annular, but approximately annular, which includes two straight tracks formed on both sides of the tie rod 14. The ends of the two straight tracks are not connected to leave space at both ends of the tie rod 14 for installing drive wheels and driven wheels). The needle block 6 moves along the annular track 1401. As mentioned above, the needle block 6 has high conveying accuracy requirements. Therefore, the annular track 1401 is set on the tie rod 14 to ensure that the needle block 6 moves along a predetermined trajectory. Several booms 13 also have segmented tracks 1301 for the operation of the second annular conveying structure 4 and the third annular conveying structure 5, and multiple segmented tracks 1301 are arranged at intervals.

[0025] In some examples, the rotary power assembly further includes a driven shaft 15 symmetrically arranged with the drive shaft 2. The drive shaft 2 passes through the first annular conveyor structure 3, the second annular conveyor structure 4, and the third annular conveyor structure 5 and is connected to the drive wheels of the three structures. The driven shaft 15 also passes through the first annular conveyor structure 3, the second annular conveyor structure 4, and the third annular conveyor structure 5 and is connected to the driven wheels of the three structures. The motor drives the drive shaft 2 to rotate. The drive shaft 2 cooperates with the drive wheels of the first annular conveyor structure 3, the second annular conveyor structure 4, and the third annular conveyor structure 5. The driven shaft 15 cooperates with the driven wheels of the first annular conveyor structure 3, the second annular conveyor structure 4, and the third annular conveyor structure 5, thereby driving the first annular conveyor structure 3, the second annular conveyor structure 4, and the third annular conveyor structure 5 to rotate synchronously.

[0026] In some examples, the boom 13 is fixed with a mounting base 16 for mounting the rotary power source 1, an upper drive guide seat 17 for the drive shaft 2 to pass through and provide guidance thereto, and an upper driven guide seat 18 for the driven shaft 15 to pass through and provide guidance thereto. There are several upper drive guide seats 17 and upper driven guide seats 18, which are distributed sequentially along the longitudinal direction. Bearings are also provided between the upper drive guide seat 17 and the drive shaft 2, and between the upper driven guide seat 18 and the driven shaft 15. The pull rod 14 is fixed with a lower drive guide seat 19 through which the drive shaft 2 passes to provide guidance, and a lower driven guide seat 20 through which the driven shaft 15 passes to provide guidance. Bearings are also installed between the lower drive guide seat 19 and the drive shaft 2, and between the lower drive guide seat 19 and the driven shaft 15.

[0027] In some examples, a sliding plate 21 is installed between the annular track 1401 and the first annular conveying structure 3.

[0028] In some examples, an installation plate 22 is provided between the upper angle iron 9 and the lower angle iron 10 of the first annular conveying structure 3 and the needle block 6, and a stop 23 for limiting the installation plate 22 is fixed on the pull rod 14. A guide rail for guiding the movement of the installation plate 22 is formed between the pull rod 14 and the stop 23. The top of the installation plate 22 is bent to form a bent portion 2201. A roller or bearing is installed between the bent portion 2201 and the stop 23. The upper angle iron 9 and the lower angle iron 10 are fixed to the installation plate 22 by bolts. A roller or bearing is also installed between the liner plate 21 and the bolts.

[0029] In some examples, a warp knitting machine includes the aforementioned annular rotating comb.

[0030] Working principle: The motor is started, and the drive shaft 2 rotates, driving the first annular conveyor structure 3, the second annular conveyor structure 4, and the second annular conveyor structure 5 to operate. This causes the needle blocks 6, threading plates 7, and take-up springs 8 on these structures to rotate synchronously and reciprocate at a uniform speed. The yarn 25 passes through the yarn frame, take-up spring 8, and threading plate 7 sequentially into the guide needles 601 of the needle block 6 to cooperate with the grooved needles 24 to achieve the knitting loop action. Every time the loop-forming area reciprocates once or several times, all the guide needles 601 move synchronously one or several needles along the width direction (the specific movement depends on the process requirements). The continuous synchronous rotation and reciprocating motion of all the guide needles 601 allows each yarn 25 to move as wide as the width of the fabric, no longer limited by the number of needles moved laterally. The multiple rotating needle blocks 6 form two guide bars that work synchronously, achieving the mutual crossing of loops without damaging the fabric yarn, greatly improving the strength of the fabric.

[0031] The above description, based on the preferred embodiments of this utility model, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A circular rotating guide bar for a warp knitting machine, characterized in that: include: The rotary power assembly includes a rotary power source (1) and a drive shaft (2) connected to the output end of the rotary power source (1). The first annular conveying structure (3) is connected to the drive shaft (2) in a transmission manner; The second annular conveying structure (4) is connected to the drive shaft (2) in a transmission manner; Multiple needle blocks (6) are arranged in a ring on the first ring conveying structure (3) and move synchronously with the first ring conveying structure (3); And multiple threading plates (7), which are arranged in a ring on the second ring conveying structure (4) and move synchronously with the second ring conveying structure (4).

2. The annular rotating guide bar of a warp knitting machine according to claim 1, characterized in that: It also includes a third annular conveying structure (5) that is connected to the drive shaft (2) and a plurality of toggle springs (8) arranged in a ring on the third annular conveying structure (5) and moving synchronously with it.

3. The annular rotating guide bar of a warp knitting machine according to claim 2, characterized in that: The first annular conveying structure (3), the second annular conveying structure (4) and the third annular conveying structure (5) are all conveying chain structures, and the first annular conveying structure (3) is a three-row chain structure, while the second annular conveying structure (4) and the third annular conveying structure (5) are double-row chain structures.

4. The annular rotating guide bar of a warp knitting machine according to claim 2, characterized in that: The first annular conveying structure (3), the second annular conveying structure (4) and the third annular conveying structure (5) are all fixed with upper angle iron (9) and lower angle iron (10) for mounting the parts to be conveyed on them.

5. The annular rotating guide bar of a warp knitting machine according to claim 4, characterized in that: It also includes several supporting columns (11), a crossbeam (12) connecting several supporting columns (11), several hanging rods (13) fixed below the crossbeam (12), and a tie rod (14) fixed to one end of the hanging rod (13) away from the crossbeam (12). A ring track (1401) for the first ring conveying structure (3) to operate is formed on the tie rod (14).

6. The annular rotating guide bar of a warp knitting machine according to claim 5, characterized in that: The rotary power assembly also includes a driven shaft (15) symmetrically arranged with the drive shaft (2). The drive shaft (2) passes through the first annular conveying structure (3), the second annular conveying structure (4), and the third annular conveying structure (5) and is connected to the drive wheels of the three structures. The driven shaft (15) also passes through the first annular conveying structure (3), the second annular conveying structure (4), and the third annular conveying structure (5) and is connected to the driven wheels of the three structures.

7. The annular rotating guide bar of a warp knitting machine according to claim 6, characterized in that: The boom (13) is fixed with a mounting base (16) for mounting the rotary power source (1), an upper drive guide seat (17) for the drive shaft (2) to pass through and provide guidance thereto, and an upper driven guide seat (18) for the driven shaft (15) to pass through and provide guidance thereto. The pull rod (14) is fixed with a lower drive guide seat (19) through which the drive shaft (2) passes to provide guidance, and a lower driven guide seat (20) through which the driven shaft (15) passes to provide guidance.

8. The annular rotating guide bar of a warp knitting machine according to claim 5, characterized in that: A liner plate (21) is installed between the annular track (1401) and the first annular conveying structure (3).

9. The annular rotating guide bar of a warp knitting machine according to claim 5, characterized in that: The first annular conveying structure (3) has an installation plate (22) between the upper angle iron (9) and the lower angle iron (10) and the needle block (6), and a stop (23) for limiting the installation plate (22) is fixed on the pull rod (14).

10. A warp knitting machine, characterized in that: Including the annular rotating comb bar of a warp knitting machine as described in any one of claims 1-9.

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