A rotary switching guide bar for a warp knitting machine and the warp knitting machine thereon

Abstract

This utility model belongs to the field of warp knitting machine technology, specifically relating to a rotary switching comb bar for a warp knitting machine and the warp knitting machine itself. It includes a needle holder, needle blocks, and a translational shifting assembly. The needle holder has two side rails on both sides, and the needle blocks within the two side rails move in opposite directions. The translational shifting assembly has two sets located at both ends of the needle holder. Each set of translational shifting assemblies includes a translational drive unit and a switching unit. This utility model utilizes two switching units distributed at both ends of the needle holder to connect the first and second side rails end-to-end to form a circular track. Multiple needle blocks continuously move laterally along this circular track to form a rotary reciprocating motion, without being limited by the number of needles moved laterally. Furthermore, the comb bar rotating along the circular track forms two sets of comb bars on the left and right sides. The two sets of comb bars work synchronously, achieving the mutual crossing of coils without damaging the fabric yarn, greatly improving the strength of the fabric and making its performance more stable and reliable.

Description

Technical Field

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

[0002] Chinese Patent Publication No. CN105200652B discloses a swing mechanism for a guide bar lateral movement assembly of a warp knitting machine. The guide bar lateral movement assembly includes a clustering comb lateral movement assembly and a ground comb lateral movement assembly. The ground comb lateral movement assembly includes components such as an electric cylinder, a lateral movement support rod, steel wire, a guide bar hanger, a hanger shaft, and a support seat. The ground comb is fixedly installed at the bottom of the guide bar hanger by bolts. The hanger shaft is installed between the guide bar hanger and the support seat, and the guide bar hanger and the hanger shaft are slidably connected. The support seat is fixedly installed on the guide bar seat of the warp knitting machine by bolts. During knitting, the electric cylinder, the lateral movement support rod, and the steel wire rope realize the reciprocating lateral movement of the ground comb along the transverse direction of the warp knitting machine. However, in this application, the guide needles on the ground comb can only move laterally left and right and cannot move continuously, and the number of lateral movement needles is limited, resulting in low fabric strength. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to solve the problem that the guide needles of the guide bar of the warp knitting machine in the prior art can only move horizontally left and right but cannot move horizontally continuously, and the number of horizontally moving needles is limited, resulting in low fabric strength, a rotary switching 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 rotary switching comb bar for a warp knitting machine, comprising: The needle base has two side rails extending along its length on both sides; The needle blocks are multiple and are slidably disposed within the side rails, with the needle blocks within the two side rails moving in opposite directions. The translation and switching components are provided in two sets, located at both ends of the needle holder. Each set of translation and switching components includes a translation drive unit for pushing the needle block to translate along the side rail and a switching unit for gripping the needle block that has moved to the end of one side rail and rotating it to switch to the other side rail.

[0005] Furthermore, the switching unit includes a clamping mechanism for clamping the needle block, a push-pull mechanism for pushing the clamping mechanism and the clamped needle block out of or into the side rail, and a rotating mechanism for reversing the rotation of the clamping mechanism and the clamped needle block.

[0006] Furthermore, the clamping mechanism includes a clamping cylinder and two chucks connected to the output end of the clamping cylinder for clamping the needle block.

[0007] Furthermore, the rotating mechanism includes a rotary motor and a rotating shaft connected to the output end of the rotary motor, and the clamping cylinder is mounted on the rotating shaft.

[0008] Furthermore, the push-pull mechanism includes a push-pull cylinder mounted on the needle seat, and the output end of the push-pull cylinder is connected to a base mounted on the rotary motor.

[0009] Furthermore, the side of the needle block near the needle seat protrudes to form an insert portion for embedding into the side rail and restricting the needle block from dislodging from the needle seat along the width direction of the needle seat.

[0010] Furthermore, each needle block has two embedded parts, and the two embedded parts gradually move closer together in the direction away from the needle block.

[0011] Furthermore, each chuck includes a base and a clamping body protruding from the base. The two clamping bodies of the two chucks gradually move away from the base in a direction away from the base, and a slot is formed between each base and its corresponding clamping body for the needle block insert to engage.

[0012] Furthermore, a slide rail is installed on the needle holder, and a slider that cooperates with the slide rail is installed at the bottom of the base.

[0013] A warp knitting machine includes a rotary switching guide bar of the aforementioned warp knitting machine.

[0014] The beneficial effects of this utility model are as follows: This utility model utilizes two switching units distributed at both ends of the needle holder to connect the first side rail and the second side rail end to end to form a circular track. Multiple needle blocks continuously move laterally along the circular track to form a rotary reciprocating motion. Every time the looping area reciprocates once or several times, all the yarn guide needles move one or several needles synchronously along the width direction. Each yarn can move laterally as wide as the width, without being limited by the number of needles moved laterally. Furthermore, the guide bars rotating along the circular track form two sets of guide bars on the left and right sides. The two sets of guide bars work synchronously, realizing the mutual crossing of loops without damaging the fabric yarn, greatly improving the strength of the fabric, and making the fabric performance more stable and reliable.

[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 1 This is a three-dimensional schematic diagram of the present invention (translation drive unit not shown). Figure 2 This is the front view of the present invention (translation drive unit not shown); Figure 3 This is a side view of the present invention (translation drive unit not shown). Figure 4 This is a schematic diagram of the combination of this utility model and a single needle block; Figure 5 This is a schematic diagram of the cooperation between the chuck and the needle block in this utility model; Figure 6 This is a schematic diagram of the structure of the translation drive unit driving the needle block to translate along the first side rail; Figure 7 This is a schematic diagram of a structure in which the translation drive unit pushes the needle block out of the first side rail and the clamping mechanism clamps the needle block. Figure 8 This is a schematic diagram of a push-pull mechanism that pushes the clamping mechanism and its pin block out of the first side rail, and a rotating mechanism that rotates it. Figure 9 This is a schematic diagram of the push-pull mechanism pulling the rotated needle block into the second side rail; Figure 10 This is a schematic diagram of the structure of the translation drive unit driving the needle block to translate along the second side rail; In the picture: 1. Needle base; 101. Side rail; 101a. First side rail; 101b. Second side rail; 2. Needle block; 201. Embedding part; 202. Yarn guide needle; 3. Translation drive unit; 4. Clamping mechanism; 401. Clamping cylinder; 402. Chuck; 4021. Base; 4022. Clamping body; 4023. Slot; 403. Cylinder seat; 5. Push-pull mechanism; 6. Rotating mechanism; 601. Rotary motor; 602. Rotating shaft; 603. Base; 604. Coupling; 7. Slide rail; 8. Slider; 9. Auxiliary Units. 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 1-5 As shown, a rotary switching guide bar for a warp knitting machine includes: The needle holder 1 is long and narrow, with two side rails 101 extending along its length on both sides. Both side rails 101 are straight tracks and are parallel to each other. There are multiple needle blocks 2, which are slidably arranged in the side rails 101. The needle blocks 2 in the two side rails 101 move in opposite directions. Each needle block 2 is equipped with multiple yarn guide needles 202. The machine includes two sets of translational shifting components located at both ends of the needle holder 1. Each set of translational shifting components includes a translational drive unit 3 for pushing the needle block 2 to translate along the side rail 101, a switching unit for grabbing the needle block 2 that has moved to the end of one side rail 101 and rotating it to switch to the other side rail 101, and an auxiliary unit 9 that is arranged opposite to the translational drive unit 3 to assist in positioning the needle block 2 during its movement on the first side rail 101a. The translational drive unit 3 and the auxiliary unit 9 are respectively distributed at the head and tail of the machine and are used to support the tail needle block 2 when the translational drive unit 3 pushes the needle block 2, so as to avoid the translational drive unit 3 applying too much force, which would cause inaccurate or unstable lateral movement. Multiple needle blocks 2 are densely arranged on each side rail 101. During the pushing process of the translational drive unit 3, the next needle block 2 can push the previous needle block 2 forward and enter the position where the previous needle block 2 was before. The translation switching unit and auxiliary unit can be, but are not limited to, cylinders, electric cylinders, or telescopic rods; Two side rails 101 are a first side rail 101a and a second side rail 101b, and multiple needle blocks 2 are distributed on the first side rail 101a and the second side rail 101b. Two translational switching components are a first translational switching component and a second translational switching component. The first translational switching component includes a first translational drive unit for pushing the needle block 2 on the first side rail 101a to translate, a first switching unit for rotating and switching the needle block 2 moved to the end of the first side rail 101a to the second side rail 101b, and a first auxiliary unit that is arranged opposite to the first translational drive unit to assist in positioning the needle block 2 during the movement of the needle block 2 on the first side rail 101a. That is, the first translational drive unit and the first auxiliary unit in the first translational switching component are respectively distributed at the head and tail of the machine, and are used to support the tail needle block 2 when the first translational drive unit pushes the needle block 2 to prevent the first translational drive unit from applying too much force, which would cause inaccurate or unstable lateral movement. The second translational shifting assembly includes a second translational drive unit for pushing the needle block 2 on the second side rail 101b to translate, a second switching unit for rotating and switching the needle block 2 moved to the end of the second side rail 101b to the first side rail 101a, and a second auxiliary unit arranged opposite to the second translational drive unit to assist in positioning the needle block 2 during its movement on the first side rail 101b. That is, the second translational drive unit and the second auxiliary unit in the second translational shifting assembly are respectively distributed at the head and tail of the machine, and are used to support the tail needle block 2 in the process of the second translational drive unit pushing the needle block 2, so as to prevent the second translational drive unit from applying too much force, resulting in inaccurate or unstable lateral movement. Since the first side rail 101a and the second side rail 101b are arranged in parallel, the rotation angle of the needle block 2 is 180°.

[0020] First, the needle block 2 on the first side rail 101a moves along the first direction under the push of the first translation drive unit, and the first auxiliary unit supports the needle block 2 on the first side rail 101a. The needle block 2 on the second side rail 101b moves along the second direction under the push of the second translation drive unit, and the second auxiliary unit supports the needle block 2 on the second side rail 101b. The first direction is opposite to the second direction. When needle block 2 is moved to the end of the first side rail 101a (i.e., the tail of the warp knitting machine) by the push of the first translation drive unit, the second switching unit grabs needle block 2, rotates it 180°, and pushes it into the second side rail 101b. When needle block 2 is moved to the end of the second side rail 101b (i.e., the head of the warp knitting machine) by the push of the second translation drive unit 3, the first switching unit grabs needle block 2, rotates it 180°, and pushes it into the first side rail 101a. The first switching unit and the second switching unit, distributed at both ends of the needle holder 1, connect the first side rail 101a with the second side rail 101b. Side rail 101b is connected end to end to form a circular track. Multiple needle blocks 2 move horizontally along the circular track to form a rotary reciprocating motion. Every time the looping area moves back and forth once or several times, all the guide needles move one or several needles synchronously along the width direction. Each yarn can move horizontally as wide as the width, without being limited by the number of needles moved horizontally. The guide bars that rotate along the circular track form two sets of guide bars on the left and right. The two sets of guide bars work synchronously, realizing the mutual crossing of loops without damaging the fabric yarn, greatly improving the strength of the fabric and making the fabric performance more stable and reliable.

[0021] In some examples, the switching unit includes a clamping mechanism 4 for clamping the needle block 2, a push-pull mechanism 5 for pushing the clamping mechanism 4 and the clamped needle block 2 out of or into the side rail 101, and a rotating mechanism 6 for reversing the rotation of the clamping mechanism 4 and the clamped needle block 2.

[0022] Taking the first switching unit as an example, when the first translation drive unit pushes the needle block 2 to the end of the first side rail 101a, the needle block 2 partially extends out of the first side rail 101a. The clamping mechanism 4 clamps the needle block 2, and the push-pull mechanism 5 pushes the needle block 2 out of the first side rail 101a. Then, the rotating mechanism 6 rotates the needle block 2 180° to align it with the second side rail 101b. Then, the push-pull mechanism 5 resets and drives the needle block 2 into the second side rail 101b. Then, the clamping mechanism 4 releases the needle block 2 and rotates it 180° under the drive of the rotating mechanism 6 to return to the first side rail 101a to prepare for the next needle block 2. The needle block 2 that has entered the second side rail 101b is translated under the push of the second translation drive unit. When it moves to the end of the second side rail 101b, the above process is repeated to switch the needle block 2 to the first side rail 101a.

[0023] In some examples, the clamping mechanism 4 includes a clamping cylinder 401 and two chucks 402 connected to the output end of the clamping cylinder 401 for clamping the needle block 2. When the needle block 2 extends out of the side rail 101, the two chucks 402 clamp the needle block 2.

[0024] In some examples, the rotating mechanism 6 includes a rotary motor 601 and a rotating shaft 602 connected to the output end of the rotary motor 601, with a coupling 604 between them. The clamping cylinder 401 is mounted on the rotating shaft 602 via a cylinder seat 403. When the rotary motor 601 drives the rotating shaft 602 to rotate, the clamping cylinder 401 and the needle block 2 it clamps rotate synchronously. After the rotary motor 601 and the rotating shaft 602 are installed, the rotation axis of the rotating shaft 602 is located at the center of the line connecting the two side rails 101, ensuring that the clamping cylinder 401 can align the needle block 2 it clamps with the two side rails 101 after rotation.

[0025] In some examples, the push-pull mechanism 5 includes a push-pull cylinder mounted on the needle holder 1. The output end of the push-pull cylinder is connected to a base 603 mounted on the rotary motor 601. The rotating shaft 602 passes through the base 603 and a bearing is installed between the rotating shaft 602 and the base 603. After the push-pull cylinder is started, it can drive the rotary motor 601, the clamping cylinder 401 and the needle block 2 on it to move synchronously, so as to push the needle block 2 out of the side rail 101 or pull it into the side rail 101.

[0026] In some examples, the needle block 2 has a protruding insert 201 on the side near the needle seat 1 for embedding the side rail 101 and restricting the needle block 2 from dislodging from the needle seat 1 along the width direction of the needle seat 1. The shape of the side rail 101 matches the shape of the insert 201. After the insert 201 is embedded in the side rail 101, it can move along the length direction of the needle seat 1 but will not dislodge along the width direction of the needle seat 1.

[0027] In some examples, each needle block 2 has two inserts 201. The two inserts 201 gradually move closer together in the direction away from the needle block 2 to form a dovetail structure. Each side rail 101 has two slides. The two slides correspond one-to-one with the two inserts 201, and each insert 201 is embedded in its corresponding slide.

[0028] In some examples, each clamp 402 includes a base 4021 and a clamping body 4022 protruding from the base 4021. The two clamping bodies 4022 of the two clamps 402 gradually move away from the base 4021. A slot 4023 is formed between each base 4021 and its corresponding clamping body 4022 for the needle block 2 inserting part 201 to be inserted. The two slots 4023 correspond one-to-one with the two inserting parts 201, and each inserting part 201 is inserted into its corresponding slot 4023. The two clamping bodies 4022 are located inside the two inserting parts 201.

[0029] In some examples, a slide rail 7 is mounted on the top of the needle holder 1, and a slider 8 that cooperates with the slide rail 7 is mounted on the bottom of the base 603. The cooperation between the slide rail 7 and the slider 8 can guide the movement direction of the rotary motor 601.

[0030] In some examples, a warp knitting machine includes the aforementioned annular rotating comb.

[0031] Working principle: First, the needle block 2 on the first side rail 101a moves along the first direction under the push of the first translation drive unit. The first auxiliary unit supports the needle block 2 on the first side rail 101a. The needle block 2 on the second side rail 101b moves along the second direction under the push of the second translation drive unit 3. The first direction is opposite to the second direction. Taking the first switching unit as an example, such as Figure 6 and 7 As shown, when needle block 2 is pushed by the first translation drive unit 3 to the end of the first side rail 101a (i.e., the tail of the warp knitting machine), needle block 2 partially extends out of the first side rail 101a. The clamping cylinder 401 in the second switching unit is activated, and the two clamps 402 open to clamp needle block 2. Then, the push-pull cylinder pushes needle block 2 out of the first side rail 101a, completely separating needle block 2 from the first side rail 101a. Then, the rotary motor 601 drives needle block 2 to rotate 180°, aligning it with the second side rail 101b. The push-pull cylinder then resets, pulling needle block 2 into the second side rail 101b (as shown). Figure 8 and 9As shown), the clamping cylinder's chuck 402 retracts, releasing the needle block 2, and rotates 180° under the drive of the rotating mechanism 6, returning to the first side rail 101a to prepare for the next needle block 2. At this time, the needle block 2 entering the second side rail 101b is translated under the push of the second translation drive unit (as shown). Figure 10 As shown, when it is moved to the end of the second side rail 101b (that is, the head of the warp knitting machine), the first switching unit repeats the above operation to rotate and switch the needle block 2 to the first side rail 101a. During the process, the first switching unit and the second switching unit distributed at both ends of the needle seat 1 connect the first side rail 101a and the second side rail 101b end to end to form a circular track.

[0032] 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 rotary switching comb bar for a warp knitting machine, characterized in that: include: The needle holder (1) has two side rails (101) extending along its length on both sides. The needle blocks (2) are multiple and are slidably disposed within the side rails (101), and the needle blocks (2) within the two side rails (101) move in opposite directions; The translation and shifting assembly has two sets located at both ends of the needle holder (1). Each set of translation and shifting assemblies includes a translation drive unit (3) for pushing the needle block (2) to translate along the side rail (101) and a switching unit for grabbing the needle block (2) that has moved to the end of one side rail (101) and rotating it to switch to the other side rail (101).

2. The rotary switching comb bar of a warp knitting machine according to claim 1, characterized in that: The switching unit includes a clamping mechanism (4) for clamping the needle block (2), a push-pull mechanism (5) for pushing the clamping mechanism (4) and the clamped needle block (2) out of the side rail (101) or pulling in the side rail (101), and a rotating mechanism (6) for reversing the rotation of the clamping mechanism (4) and the clamped needle block (2).

3. The rotary switching comb bar of a warp knitting machine according to claim 2, characterized in that: The clamping mechanism (4) includes a clamping cylinder (401) and two chucks (402) connected to the output end of the clamping cylinder (401) and used to clamp the needle block (2).

4. The rotary switching comb bar of a warp knitting machine according to claim 3, characterized in that: The rotating mechanism (6) includes a rotary motor (601) and a rotating shaft (602) connected to the output end of the rotary motor (601), and the clamping cylinder (401) is mounted on the rotating shaft (602).

5. The rotary switching guide bar of a warp knitting machine according to claim 4, characterized in that: The push-pull mechanism (5) includes a push-pull cylinder mounted on the needle seat (1), and the output end of the push-pull cylinder is connected to the base (603) for mounting the rotary motor (601).

6. The rotary switching comb bar of a warp knitting machine according to claim 3, characterized in that: The needle block (2) has a protruding part (201) on the side near the needle seat (1) for embedding into the side rail (101) and restricting the needle block (2) from dislodging from the needle seat (1) along the width direction of the needle seat (1).

7. A rotary switching guide bar for a warp knitting machine according to claim 6, characterized in that: Each needle block (2) has two inserts (201), and the two inserts (201) gradually move closer together in the direction away from the needle block (2).

8. The rotary switching comb bar of a warp knitting machine according to claim 7, characterized in that: Each chuck (402) includes a base (4021) and a clamping body (4022) protruding from the base (4021). The two clamping bodies (4022) of the two chucks (402) gradually move away from the base (4021) in a direction away from the base. A slot (4023) is formed between each base (4021) and its corresponding clamping body (4022) for the needle block (2) to be inserted into.

9. A rotary switching guide bar for a warp knitting machine according to claim 5, characterized in that: The needle holder (1) is equipped with a slide rail (7), and the base (603) has a slider (8) that cooperates with the slide rail (7) at its bottom.

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

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