Knitting machine insertion piece

Abstract

The utility model relates to the technical field of textile machinery, and discloses a knitting machine inserting piece which comprises an inserting piece body plate, an airflow guiding device is arranged on the front face of the inserting piece body plate, and a needle and thread limiting device is arranged on the left side of the inserting piece body plate. The needle and thread limiting device comprises an elastic connecting pad, a connecting block, an elastic branch rod, a connecting ball and an elastic arc pad, the elastic connecting pad is fixedly connected to the top of the left side of the inserting piece main body plate, the connecting block is fixedly connected to the left side of the elastic connecting pad, and the elastic branch rod is fixedly connected to the left side of the connecting block. According to the insertion piece of the knitting machine, the needle and thread limiting device is arranged, a plurality of slightly-bent and elastically-deformable fine branch structures are designed at the left side position, namely the front end thread inlet position, of the insertion piece, the bending degree and the distance can be adjusted according to the tension, the thickness and the moving track of yarn, and the effect is good when the insertion piece is used.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically to a knitting machine insert. Background Art

[0002] The knitting industry is an important part of the textile industry, and its products are widely used in many fields such as clothing, home textiles, and medical textiles. As the core equipment in the knitting production process, the knitting machine's technology level directly affects the production efficiency, quality, and variety of patterns of knitted products. The inserts of the knitting machine are an important component of the knitting machine's needle bed. They work closely with the knitting needles and play a key role in the knitting process.

[0003] The prior art discloses a high-stability needle bed insert for a computerized flat knitting machine, with publication number CN204898242U. The insert body includes a body with a transverse small dovetail groove on its upper edge, and transverse middle and rear dovetail grooves located behind the small dovetail groove. The front end of the insert body has a needle stabilizing part extending longitudinally forward from the front wall of the small dovetail groove. The main body of the needle stabilizing part is flat and thinner than the insert body. The back of the main body of the needle stabilizing part has a concave planar structure relative to the back of the insert body, with an arc-shaped transition connecting surface between them. The upper edge of the needle stabilizing part has an arc shape with its height gradually decreasing from back to front. This invention effectively reduces the swing amplitude of the needles, significantly improves the knitting speed and fabric density of the machine, greatly reduces needle slippage and breakage during needle turning, reduces the defect rate, and improves the machine's working efficiency and stability.

[0004] The aforementioned knitting machine inserts improve the knitting speed and fabric density, greatly reduce needle slips and breaks during needle turning, reduce defect rates, and improve machine efficiency and stability. However, these inserts lack an adaptive adjustment component for limiting the knitting yarn, and do not have multiple slightly curved and elastically deformable small branch structures at the front end of the insert. Consequently, they cannot adjust the degree of curvature and spacing according to the yarn tension, thickness, and running trajectory, resulting in poor performance during use. Improvements are needed in this regard. Utility Model Content

[0005] The purpose of this invention is to provide a knitting machine insert to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a knitting machine insert, comprising an insert body plate, wherein an airflow guiding device is provided on the front side of the insert body plate, and a needle and thread limiting device is provided on the left side of the insert body plate.

[0007] The needle and thread limiting device includes an elastic connecting pad, a connecting block, an elastic branch rod, a connecting ball, and an elastic arc pad. The elastic connecting pad is fixedly connected to the top left side of the insert body plate, the connecting block is fixedly connected to the left side of the elastic connecting pad, the elastic branch rod is fixedly connected to the left side of the connecting block, the connecting ball is fixedly connected to the left side of the elastic branch rod, and the elastic arc pad is connected to the surface of the connecting ball.

[0008] Preferably, the airflow guiding device includes a hollow positioning plate, an annular air intake pipe, and a detachable sealing ring. The hollow positioning plate is fixedly connected to the front left side of the insert body plate near the top. The annular air intake pipe is fixedly connected to the front side of the hollow positioning plate. The detachable sealing ring is threadedly connected to the inner ring of the annular air intake pipe.

[0009] Preferably, the elastic arc pad is fixedly connected to the side of the connecting sphere near the center of the elastic connecting pad.

[0010] Preferably, there are eight connecting blocks, eight elastic branch rods, eight connecting spheres, and eight elastic arc pads, which are distributed in a ring at equal intervals on the left side of the elastic connecting pad.

[0011] Preferably, the hollow positioning plate has a vent hole inside, and the diameter of the vent hole is adapted to the inner diameter of the annular air inlet pipe. The vent hole allows the airflow blown out from the air source to be ejected from the annular air inlet pipe into the inside of the threading groove. The ejected airflow forms a local low-pressure area and airflow barrier. When the yarn enters the insert area, it will be attracted and guided by the airflow, thus guiding the yarn.

[0012] Preferably, the inner ring of the annular air intake pipe has an internal thread, and the surface of the detachable sealing ring has a threaded connection section, which is connected to the inside of the annular air intake pipe.

[0013] Preferably, a threading groove is provided inside the insert body plate near the top. The diameter of the threading groove is adapted to the inner diameter of the elastic connecting pad. The threading groove allows the needle and thread to pass through, ensuring the normal use of the device.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The insert of this knitting machine is equipped with a needle and thread limiting device. On the left side of the insert, at the front end of the thread inlet, there are multiple slightly curved and elastically deformable small branch structures. The degree of curvature and spacing can be adjusted according to the tension, thickness and running trajectory of the yarn, resulting in good performance during use.

[0016] 2. The insert of this knitting machine is equipped with an airflow guiding device and an air supply component. The air source delivers a stable airflow to the airflow channel inside the insert. The airflow is ejected from the annular air inlet pipe into the inside of the threading groove. The ejected airflow forms a local low-pressure area and an airflow barrier. When the yarn enters the insert area, it will be attracted and guided by the airflow, automatically approaching and moving along the path specified by the insert. By adjusting the pressure and flow rate of the airflow, the positioning accuracy and movement speed of the yarn can be controlled. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional side view of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the overall three-dimensional front view of the present invention;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Insert plate main body; 2. Airflow guiding device; 201. Hollow positioning plate; 202. Annular air inlet pipe; 203. Detachable sealing ring; 3. Needle thread limiting device; 301. Elastic connecting pad; 302. Connecting block; 303. Elastic branch rod; 304. Connecting ball; 305. Elastic arc pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Please see Figure 1-4 The present invention provides the following technical solution:

[0024] A knitting machine insert includes an insert body plate 1, an airflow guiding device 2 is provided on the front side of the insert body plate 1, and a needle and thread limiting device 3 is provided on the left side of the insert body plate 1.

[0025] The needle and thread limiting device 3 includes an elastic connecting pad 301, a connecting block 302, an elastic branch rod 303, a connecting ball 304, and an elastic arc pad 305. The elastic connecting pad 301 is fixedly connected to the top left side of the insert body plate 1. The connecting block 302 is fixedly connected to the left side of the elastic connecting pad 301. The elastic branch rod 303 is fixedly connected to the left side of the connecting block 302. The connecting ball 304 is fixedly connected to the left side of the elastic branch rod 303. The elastic arc pad 305 is connected to the surface of the connecting ball 304. A threading groove is provided inside the insert body plate 1 near the top. The diameter of the elastic connecting pad 301 is adapted to the inner diameter of the elastic connecting pad 301. A threading groove is provided inside the insert body plate 1 near the top, through which the needle and thread can pass through to ensure the normal use of the device. The elastic arc pad 305 is fixedly connected to the connecting ball 304 on the side near the center of the elastic connecting pad 301. There are eight connecting blocks 302, elastic branch rods 303, connecting balls 304 and elastic arc pads 305. The eight connecting blocks 302, elastic branch rods 303, connecting balls 304 and elastic arc pads 305 are distributed in a ring at equal intervals on the left side of the elastic connecting pad 301.

[0026] The airflow guiding device 2 includes a hollow positioning plate 201, an annular air inlet pipe 202, and a detachable sealing ring 203. The hollow positioning plate 201 is fixedly connected to the front left side of the insert body plate 1 near the top. The annular air inlet pipe 202 is fixedly connected to the front of the hollow positioning plate 201. The detachable sealing ring 203 is threaded to the inner ring of the annular air inlet pipe 202. The hollow positioning plate 201 has an air vent, the diameter of which is adapted to the inner diameter of the annular air inlet pipe 202. The air vent allows the airflow from the air source to be ejected from the annular air inlet pipe 202 into the inside of the threading groove. The ejected airflow forms a local low-pressure area and an airflow barrier. When the yarn enters the insert area, it will be attracted and guided by the airflow, thus guiding the yarn. The inner ring of the annular air inlet pipe 202 has an internal thread, and the back end of the surface of the detachable sealing ring 203 has a threaded connection section, which is connected to the inside of the annular air inlet pipe 202.

[0027] In use, a threading groove is provided inside the insert body plate 1 near the top, through which the needle and thread can pass. Before passing through, the needle and thread must pass through the needle and thread limiting device 3. On the left side of the insert, multiple slightly curved and elastically deformable small branch structures are designed, namely the elastic branch rod 303, the connecting ball 304, and the elastic arc pad 305. When the knitting machine is running and the yarn comes into contact with the insert, the elastic branch rod 303, the connecting ball 304, and the elastic arc pad 305 can adjust according to the tension, thickness, and other properties of the yarn. The running trajectory automatically adjusts the curvature and spacing. When the yarn is thicker or under greater tension, the branch structure composed of the elastic branch rod 303, connecting ball 304, and elastic arc pad 305 is appropriately stretched to increase the contact area and friction with the yarn, ensuring the yarn moves stably along the direction guided by the insert. Conversely, when the yarn is thinner or under less tension, the branch structure retracts and closes to avoid excessive compression or interference with the yarn. The left side, i.e., the front inlet, is designed with multiple slightly curved and elastically deformable small branch structures. These can adjust the degree of curvature and spacing according to the yarn tension, thickness, and running trajectory, resulting in good performance during use. An airflow guide device 2 is set on the front of the insert body plate 1, also located in front of the threading groove near the left side. The annular air inlet pipe 202 is connected to an external air source, which can be a small air pump or a compressed air tank. During use, a detachable sealing ring 203 of the appropriate size is screwed on according to the diameter of the air inlet pipe of the small air pump or compressed air tank to prevent air leakage. When the knitting machine is working, the air source delivers a stable airflow to the airflow channel inside the insert. The airflow is ejected from the annular air inlet pipe 202 into the inside of the threading groove. The ejected airflow forms a local low-pressure area and airflow barrier. When the yarn enters the insert area, it is attracted and guided by the airflow, automatically approaching and moving along the path specified by the insert. By adjusting the airflow pressure and flow rate, the positioning accuracy and movement speed of the yarn can be controlled.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A knitting machine insert, comprising an insert body plate (1), characterized in that: An airflow guiding device (2) is provided on the front side of the insert body plate (1), and a needle and thread limiting device (3) is provided on the left side of the insert body plate (1). The needle and thread limiting device (3) includes an elastic connecting pad (301), a connecting block (302), an elastic branch rod (303), a connecting ball (304), and an elastic arc pad (305). The elastic connecting pad (301) is fixedly connected to the top left side of the insert body plate (1). The connecting block (302) is fixedly connected to the left side of the elastic connecting pad (301). The elastic branch rod (303) is fixedly connected to the left side of the connecting block (302). The connecting ball (304) is fixedly connected to the left side of the elastic branch rod (303). The elastic arc pad (305) is connected to the surface of the connecting ball (304).

2. The knitting machine insert according to claim 1, characterized in that: The airflow guiding device (2) includes a hollow positioning plate (201), an annular air inlet pipe (202), and a detachable sealing ring (203). The hollow positioning plate (201) is fixedly connected to the front left side of the insert body plate (1) near the top. The annular air inlet pipe (202) is fixedly connected to the front side of the hollow positioning plate (201). The detachable sealing ring (203) is threadedly connected to the inner ring of the annular air inlet pipe (202).

3. A knitting machine insert according to claim 1, characterized in that: The elastic arc pad (305) is fixedly connected to the side of the connecting sphere (304) near the center of the elastic connecting pad (301).

4. A knitting machine insert according to claim 1, characterized in that: The number of the connecting block (302), elastic branch rod (303), connecting ball (304) and elastic arc pad (305) are all eight. The eight connecting blocks (302), elastic branch rods (303), connecting balls (304) and elastic arc pads (305) are distributed in a ring at equal intervals on the left side of the elastic connecting pad (301).

5. A knitting machine insert according to claim 2, characterized in that: The hollow positioning plate (201) has an internal ventilation hole, the diameter of which is adapted to the inner diameter of the annular air inlet pipe (202).

6. A knitting machine insert according to claim 2, characterized in that: The inner ring of the annular air intake pipe (202) is provided with an internal thread, and the surface of the detachable sealing ring (203) is provided with a threaded connection section, which is connected to the inside of the annular air intake pipe (202).

7. A knitting machine insert according to claim 1, characterized in that: The insert body plate (1) has a threading groove near the top, and the diameter of the threading groove is adapted to the inner diameter of the elastic connecting pad (301).

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