Improvement of computerized flat knitting machine boat

Abstract

The utility model discloses an improved structure of computer flat knitting machine canoe, including triangle bottom plate, homing guide block triangle and needle cleaning homing triangle, be provided with the needle guide block on homing guide block triangle, have the first needle inclined plane on the needle guide block, be equipped with the second needle inclined plane on needle cleaning homing triangle, and the side of second needle inclined plane is linked with the first needle inclined plane. The improved structure of computer flat knitting machine canoe provided by the utility model sets up the second needle inclined plane on needle cleaning homing triangle, drives needle movement by the needle guide block, ensures needle foot to press down needle track through the second needle inclined plane, namely, the simultaneous action of sliding down and pressing down, makes the needle foot of spring needle and long needle needle foot to not weave station, the whole process is more smooth, avoids the phenomenon of needle jamming. Can alleviate the load when the machine head reciprocating work, avoid the phenomenon of spring needle and not weaving triangle pressure tablet abrasion, not easy to have the trouble such as needle jamming or needle missing, prolong the service life of spring needle, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of computerized flat knitting machine production technology, and more specifically to an improved structure of a computerized flat knitting machine sampan. Background Technology

[0002] In a computerized flat knitting machine, the knitting needle assembly is typically installed within the needle slots of the needle plate, which are formed by adjacent inserts mounted on the needle plate. During operation, the knitting needle assembly is driven by a triangular mechanism to continuously extend and retract along the needle slots, thus completing the knitting process. Various functional triangular blocks are installed on the knitting board; the movement of the board and the coordination of these blocks drive the knitting needles to complete the knitting process.

[0003] According to the invention patent application with publication number CN117230565B and publication date of 2025-08-29, a novel computer flat knitting machine shank is disclosed, including a triangular mother plate, a needle selection mother needle, a central triangle, a guide triangle, a side triangle, and a needle foot guard. The triangular mother plate is equipped with a gauge triangle, a needle guard triangle, a turn-over triangle, and a knitting triangle. The turn-over triangle is composed of upper and lower turn-over triangles. There is a needle path I between the upper turn-over triangle and the needle guard triangle, a needle path II between the upper and lower turn-over triangles, and a needle path III at the bottom of the lower turn-over triangle. The needle foot guard, the knitting triangle, the side triangle, and the central triangle together form a needle path IV. A needle path V is formed between the side triangle and the central triangle. There is a guide slope A on the adjacent sides of the side triangle and the central triangle. Its main technical advantages are: while ensuring the various actions performed by the knitting needle assembly on the fabric, the non-woven pressure plate and its three pressure leg triangles and complex drive mechanism are eliminated, thereby simplifying the overall structure, avoiding needle wear, reducing the failure rate, reducing the working load of the machine head, and saving production and manufacturing costs.

[0004] In the existing technology, when the sampan moves, the return guide triangle on the triangular base plate abuts against the needle. During the return sliding process under the action of the return guide triangle, the needles of long needles and spring needles that are not involved in knitting cannot be hidden. As a result, the needles of spring needles are always in close contact with the non-knitting triangular pressure plate under normal pressure. This leads to a heavy load on the knitting head during reciprocating operation, resulting in wear on the spring needles and non-knitting triangular pressure plate, and easily causing faults such as needle jamming or missing needles. The aim is to solve the problem that the return guide triangle in the existing technology cannot automatically hide the needles of long needles and spring needles that are not involved in knitting, which leads to a heavy load on the knitting head during reciprocating operation, resulting in wear on the spring needles and non-knitting triangular pressure plate, and easily causing problems such as needle jamming or missing needles. Utility Model Content

[0005] The purpose of this invention is to provide an improved structure for the flatbed of a computerized flat knitting machine, which aims to solve the problem that in the existing technology, the return guide triangle cannot automatically hide the stitches of long needles and spring needles that are not involved in knitting, resulting in a heavy load on the knitting head during reciprocating operation, causing wear on spring needles and non-knitting triangle pressure plates, and easily leading to problems such as needle jamming or missing needles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An improved structure for a computerized flat knitting machine includes a triangular base plate and a return guide triangle mounted on the triangular base plate. The return guide triangle is provided with a guide pin block, which has a first guide pin inclined surface. The structure also includes a needle clearing return triangle provided on the guide pin block, which has a second guide pin inclined surface. The first guide pin inclined surface and the second guide pin inclined surface intersect, and the side of the second guide pin inclined surface is connected to the first guide pin inclined surface.

[0007] Preferably, the needle-clearing triangle is provided with a pressure needle slope on one side relative to the second guide needle slope, and an abutment surface is provided at the connection between the pressure needle slope and the top of the second guide needle slope.

[0008] Preferably, the bottom of the guide pin block protrudes beyond the bottom of the return guide pin triangle, and the bottom of the cleaning needle return triangle is flush with the guide pin block.

[0009] Preferably, the triangular base plate is provided with a groove for avoiding the guide needle block and the cleaning needle return triangle.

[0010] In the above technical solution, the improved structure of the computer flat knitting machine sampan provided by this utility model has the following beneficial effects: This invention utilizes a second guide bevel on the needle return triangle. While the guide block drives the needle movement, the second guide bevel ensures the needle's downward movement trajectory. This simultaneous downward and downward motion guides the spring needles and long needles to the non-knitting position, resulting in a smoother process and preventing needle jamming. This process automatically hides the long and spring needles that are not involved in knitting, reducing the load on the machine head during reciprocating operation, preventing wear on the spring needles and non-knitting triangle pressure plates, minimizing needle jamming or missed needles, extending the lifespan of the spring needles, and reducing production costs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0012] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 A schematic diagram of a triangular guide block installed at the center of a triangular base plate, provided in an embodiment of this utility model; Figure 3 A schematic diagram of the repositioning structure provided for an embodiment of this utility model, where the device is installed on one side of the triangular base plate. Figure 4 A schematic diagram of the triangular positioning guide block in use provided in an embodiment of this utility model; Figure 5 A schematic diagram of the shape of a triangular positioning guide block in the prior art provided for an embodiment of this utility model; Figure 6 A schematic diagram of the shape of another positioning guide block triangle in the prior art provided for the embodiments of this utility model.

[0013] Explanation of reference numerals in the attached figures: 1. Triangular base plate; 2. Returning guide triangle; 21. Guide pin block; 22. First guide pin bevel; 23. Cleaning pin returning triangle; 24. Second guide pin bevel; 25. Pressing pin bevel; 26. Abutment surface; 3. Groove. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0015] Please see Figure 1 — Figure 6 An improved structure for a computerized flat knitting machine includes a triangular base plate 1 and a return guide triangle 2 mounted on the triangular base plate 1. The return guide triangle 2 is provided with a guide pin block 21, which has a first guide pin inclined surface 22. It also includes a needle clearing and return triangle 23 provided on the guide pin block 21, which has a second guide pin inclined surface 24 connected to the first guide pin inclined surface 22.

[0016] The return guide triangle 2 is fixedly installed on the triangular base plate 1. A guide pin block 21 is fixedly installed on the outer wall of one side of the return guide triangle 2. A contact slope for contacting the spring needle pin is provided at one end of the return guide triangle 2. The first guide pin slope 22 provided on the guide pin block 21 is connected to the contact slope to form an integral slope, which is used to contact the spring needle pin and drive the spring needle pin to move in the needle groove between the inserts.

[0017] As an embodiment of this utility model, the number of return guide triangles 2 can be multiple. Specifically, there are three return guide triangles 2, which are respectively installed on the left side, center, and right side of the triangular base plate 1. The return guide triangle 2 installed on the left side is used to return the spring pin on the left side, the return guide triangle 2 installed at the center is used to return the spring pin at the center, and the return guide triangle 2 installed on the right side is used to return the spring pin on the right side.

[0018] like Figure 1 and Figure 3 As shown, when the return guide triangle 2 is installed on the left or right side, the return guide triangle 2 is provided with a guide pin block 21 and the return guide triangle 2 on only one side, preferably on the side facing the center. When the return guide triangle 2 is installed at the center, the return guide triangle 2 is provided with a guide pin block 21 and the return guide triangle 2 on both sides.

[0019] like Figure 2 As shown, the needle-clearing return triangle 23 is set on the outer wall of one side of the needle guide block 21. A second needle guide slope 24 is set on the side of the needle-clearing return triangle 23 near the first needle guide slope 22. The second needle guide slope 24 and the first needle guide slope 22 are staggered. When the needle foot of the spring needle comes into contact with the abutting slope of the return guide block triangle 2 during the movement of the triangular base plate 1, the spring needle will move downward in the needle groove and gradually move from the abutting slope to the first needle guide slope 22. At this time, the spring needle will gradually move downward in the needle groove under the drive of the needle foot. When the needle foot moves to the second needle guide slope 24, since the second needle guide slope 24 and the first needle guide slope 22 are staggered, the needle foot will move inward toward the needle plate side, thereby causing the spring needle to move inward toward the needle plate side and press the spring needle down.

[0020] This invention utilizes a second guide needle inclined surface 24 on the needle return triangle 23. While the guide needle block 21 drives the needle feet downwards, the second guide needle inclined surface 24 ensures the needle feet's pressing and tracking trajectory, guaranteeing that the downward and pressing actions of the spring needles are synchronized. This allows the spring needle feet and long needle feet to quickly move to the non-knitting position, resulting in a smoother process and preventing needle jamming. This process automatically hides the long needles and spring needle feet that are not involved in knitting, reducing the load on the machine head during reciprocating operation. This makes the machine head movement smoother and lighter, preventing wear on the spring needles and non-knitting triangle pressure plates, reducing the likelihood of needle jamming or missed needles, extending the lifespan of the spring needles, and lowering production costs.

[0021] It should be noted that in actual production, the return guide triangle 2 can be designed according to the needs of the machine model. The guide pin block 21 can be removed according to the machine model requirements, such as... Figure 5 and Figure 6The diagram shown is a schematic diagram of the structure of the clearing needle return triangle 23 for the other two different return guide triangles 2 in the prior art.

[0022] As an embodiment provided by this utility model, such as Figure 2 As shown, a pressure needle inclined surface 25 is provided on one side of the clear needle return triangle 23 relative to the second guide needle inclined surface 24. When the triangle base plate 1 reciprocates, the pressure needle inclined surface 25 abuts against the spring needle foot to assist the spring needle to slide smoothly.

[0023] Furthermore, such as Figure 2 As shown, an abutment surface 26 is provided at the connection between the pressure needle inclined surface 25 and the top of the second guide needle inclined surface 24. When the spring needle foot moves inward along the second guide needle inclined surface 24 towards the needle plate, the abutment surface 26 completely presses the needle foot into the needle groove position between the inserts.

[0024] As an embodiment provided by this utility model, such as Figure 2 and Figure 3 As shown, the bottom of the guide pin block 21 protrudes beyond the bottom of the return guide pin triangle 2, and the bottom of the cleaning needle return triangle 23 is flush with the guide pin block 21. Both the guide pin block 21 and the cleaning needle return triangle 23 protrude beyond the bottom of the return guide pin triangle 2, allowing the guide pin block 21 and the return guide pin triangle 2 to have a lower height compared to the conventional model. This allows them to accommodate the heightened spring needle feet, ensuring that the heightened spring needle feet match the height of the guide pin block 21 and the cleaning needle return triangle 23.

[0025] The triangular base plate 1 is provided with a groove 3 for avoiding the guide pin block 21 and the cleaning pin return triangle 23. The clearance space provided by the groove 3 allows the guide pin block 21 and the cleaning pin return triangle 23 to protrude from the bottom of the return guide pin triangle 2. At the same time, the groove 3 abuts against the bottom of the protruding return guide pin triangle 2, which can increase the structural strength.

[0026] Working principle: like Figure 4 As shown, when the triangular base plate 1 is in motion, the pin of the spring needle first abuts against the inclined surface of the return guide block triangle 2. Then, driven by the inclined surface, the pin of the spring needle moves downward in the needle groove. At this time, the pin of the spring needle gradually moves from the inclined surface to the first guide needle inclined surface 22, until the pin of the spring needle moves to the second guide needle inclined surface 24. At this time, driven by the second guide needle inclined surface 24, the pin of the spring needle gradually moves downward in the needle groove while moving inward toward the side of the needle plate, pressing the spring needle down.

[0027] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An improved structure for a computerized flat knitting machine sampan, comprising a triangular base plate (1) and a return guide triangle (2) mounted on the triangular base plate (1), wherein a guide pin block (21) is provided on the return guide triangle (2), and the guide pin block (21) has a first guide pin inclined surface (22), characterized in that, It also includes a needle clearing and positioning triangle (23) set on the needle guide block (21), the needle clearing and positioning triangle (23) is provided with a second needle guide slope (24), the first needle guide slope (22) intersects with the second needle guide slope (24), and the side of the second needle guide slope (24) is connected to the first needle guide slope (22).

2. The improved structure of the computer flat knitting machine sampan according to claim 1, characterized in that, The needle return triangle (23) is provided with a pressure needle slope (25) on one side relative to the second guide needle slope (24), and an abutment surface (26) is provided at the connection between the pressure needle slope (25) and the top of the second guide needle slope (24).

3. The improved structure of the computerized flat knitting machine sampan according to claim 1, characterized in that, The bottom of the guide pin block (21) protrudes beyond the bottom of the return guide pin triangle (2), and the bottom of the clearing needle return triangle (23) is flush with the guide pin block (21).

4. The improved structure of the computerized flat knitting machine sampan according to claim 1, characterized in that, The triangular base plate (1) is provided with a groove (3) for avoiding the guide needle block (21) and the cleaning needle return triangle (23).

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