A needle changing method for starting base plate

Abstract

The present invention relates to the technical field of base plates, and discloses a needle replacement method for a base plate, comprising a base plate body (1), a movable needle (2) mounted on the base plate body (1), and a spring (3), wherein one end of the spring (3) is fixed to the base plate body (1), and the other end of the spring (3) is a free end, and the free end of the spring (3) cooperates with the movable needle (2) and clamps the movable needle (2) on the base plate body (1); the needle replacement method comprises the following steps: clamping the movable needle (2) on the base plate body (1); preparing a needle remover (6); inserting the needle remover (6) vertically downward into the gap between the movable needle (2); continuing to push the needle remover (6) downward so that its inclined surface (61) contacts the inner end surface of the spring (3) and pushes the spring (3) outward to release the clamp; taking out the movable needle (2) for replacement; and pulling out the needle remover (6). The present invention has a simple and reasonable structure and can quickly and effectively replace the target movable needle.

Description

Technical Field

[0001] The present invention relates to the technical field of base plates, and in particular to a needle changing method for base plates. Background Art

[0002] A flat knitting machine, a type of knitting machinery, generally refers to a flat knitting machine that uses a horizontally moving needle bed for knitting. Its main structure consists of a machine body, a machine head, and a frame. Most existing flat knitting machines are computerized and use automated electronic control systems. This system is the combination of electric drive and control circuits that control the machine's motor starting, braking, forward and reverse rotation, and speed regulation.

[0003] The movable needle in the existing technology is fixed by welding, and its welding strength is greatly affected by the material and production process. It is easy to be damaged when subjected to large force, and it is impossible to replace a single needle. When a single needle is damaged, the entire bottom needle plate can only be replaced, and the replacement is time-consuming and labor-intensive. Therefore, it is necessary to design a needle that can withstand stronger force and can be replaced without disassembling the bottom plate, which greatly saves the time and cost of repairing a broken needle. Summary of the Invention

[0004] The present invention aims at the shortcomings of the prior art and provides a needle changing method for a base plate.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] A needle-changing structure for a base plate includes a base plate body, a movable needle installed on the base plate body, and a spring sheet arranged in one-to-one correspondence with the movable needle. One end of the spring sheet is fixed to the base plate body, and the other end of the spring sheet is its free end. The spring sheet is an elastic sheet structure whose free end can be moved and displaced. The free end of the spring sheet cooperates with the movable needle and clamps the movable needle to the base plate body.

[0007] Preferably, a first clamping block is provided at the lower part of the front and rear sides of the movable needle, and a second clamping block is provided on the free end of the spring piece to contact and cooperate with the first clamping block. The second clamping block is located above the first clamping block and clamps the movable needle to the bottom plate body.

[0008] Preferably, the first clamping block protrudes outwardly perpendicular to the axis of the moving needle, the outward protrusion distance of the first clamping block gradually decreases from top to bottom, and the cross-section of the first clamping block is a triangle.

[0009] Preferably, the movable pin is further provided with a slot, the slot being located above the first clamping block, and the second clamping block being engaged with and positioned within the slot. Through the design of the first and second clamping blocks and the slot, and the front-to-back symmetry of the above structure, the movable pin is secured to the base plate body by the spring clip. The lower portion of the spring clip is located between two adjacent movable pins, and the width of the lower portion of the spring clip is less than the spacing between the two adjacent movable pins. The second clamping block is located to the left or right of the upper portion of the spring clip, and the second clamping block extends leftward or rightward into the slot.

[0010] Preferably, it further comprises a connecting seat fixed on the base plate body, a plurality of spring sheets are sequentially arranged and fixed on the connecting seat and form a spring clamp with the connecting seat; the spring sheets and the connecting seat are integrally formed.

[0011] Preferably, there are two spring clamps, which are respectively fixed on the front and rear sides of the base plate body and clamp the movable needle inward. The movable needle has a front-to-back symmetrical needle body structure, and the two spring clamps are respectively matched with the front and rear sides of the movable needle; it also includes a pressure plate, which is provided with a positioning pin, and the base plate body and the connecting seat are provided with positioning holes that cooperate with the positioning pin.

[0012] Preferably, it also includes a needle remover that can be inserted into the bottom plate. The lower part of the needle remover is provided with an inclined surface, which is arranged toward the front and lower part or the rear and lower part. The inclined surface contacts and cooperates with the spring piece. The downward moving needle remover pushes the free end of the spring piece forward or backward through the inclined surface. After being pushed outward, the spring piece is released from the moving needle; the lower part of the needle remover is provided with a boss that protrudes toward the direction of the moving needle.

[0013] Preferably, the needle remover has a symmetrical structure, with inclined surfaces on the front and rear sides of the lower part of the needle remover. A slot is provided at the lower part of the needle remover, which facilitates the insertion of the needle remover into the base plate, and the inclined surfaces are symmetrically distributed on the front and rear sides of the slot.

[0014] Preferably, the width of the needle remover is smaller than the interval between two adjacent movable needles; and the inclination angle between the inclined surface and the horizontal plane is 50° to 80°.

[0015] A needle changing method for a base plate, comprising the above-mentioned needle changing structure for a base plate, comprising the following steps:

[0016] The moving needle is fastened to the base plate body through a spring clip;

[0017] Prepare the needle remover;

[0018] Insert the needle remover vertically downward into the space between the moving needles;

[0019] Continue to push the needle remover downward until its inclined surface contacts the inner end surface of the spring and pushes the spring outward. The second block on the spring disengages from the movable needle, releasing the clamp.

[0020] The boss on the needle remover moves to the bottom of the first clamping block, the needle remover is pulled out and the needle is pulled out together, the current inclined surface pushes open the spring piece, the spring piece slightly expands outward, and the new needle can be directly inserted;

[0021] Insert the new pin into the base plate body.

[0022] Due to the adoption of the above technical solution, the present invention has significant technical effects: through the installation of the spring piece and the cooperation of the needle remover, the present application can simultaneously realize the fixation of the movable needle and the replacement of a single movable needle. The present application has a simple structure and strong practicality, and can quickly and effectively replace the target movable needle, which is convenient for repair and maintenance, reduces equipment costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a partial enlarged view A of the present invention

[0025] Figure 3 It is a partial structural diagram of the present invention.

[0026] Figure 4 It is a structural schematic diagram of the movable needle of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the shrapnel of the present invention.

[0028] Figure 6 It is a structural schematic diagram of the needle remover of the present invention.

[0029] The names of the parts indicated by the numerical labels in the accompanying drawings are as follows: 1-base plate body, 2-movable needle, 3-spring, 4-connecting seat, 5-pressing plate, 6-needle remover, 21-first clamping block, 22-slot, 31-second clamping block, 51-locating pin, 61-bevel, 62-slot, 63-boss. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. Example 1

[0031] A needle-changing structure for a base plate, as shown in the figure, includes a base plate body 1, a movable needle 2 installed on the base plate body 1, and a spring piece 3 arranged in a one-to-one correspondence with the movable needle 2. One end of the spring piece 3 is fixed on the base plate body 1, and the other end of the spring piece 3 is its free end. The spring piece 3 is an elastic sheet structure whose free end can be moved and displaced. The free end of the spring piece 3 cooperates with the movable needle 2 and clamps the movable needle 2 on the base plate body 1. Example 2

[0032] The same as Example 1, the difference is that a first clamping block 21 is provided at the lower part of the movable needle 2, and a second clamping block 31 is provided on the free end of the spring 3 to contact and cooperate with the first clamping block 21. The second clamping block 31 is located above the first clamping block 21 and clamps the movable needle 2 to the bottom plate body 1.

[0033] The first clamping block 21 protrudes outwards perpendicularly to the axis of the movable needle 2 . The outward protrusion distance of the first clamping block 1 gradually decreases from top to bottom. The cross section of the first clamping block 21 is a triangle. Example 3

[0034] The same as Example 1, the difference is that a slot 22 is also provided on the movable needle 2, the slot 22 is located above the first clamping block 21, and the second clamping block 31 cooperates with the slot 22 and is placed in the slot 22; through the design of the first clamping block 21, the second clamping block 31 and the slot 22, and the front and rear symmetrical setting of the above structure, the movable needle 2 is fixed to the base plate body 1 by the spring piece 3.

[0035] The lower part of the spring piece 3 is located between two adjacent movable needles 2, and the width of the lower part of the spring piece 3 is smaller than the interval between the two adjacent movable needles 2; the second clamping block 31 is located on the left or right side of the upper part of the spring piece 3, and the second clamping block 31 extends to the left or right into the clamping slot 22. Example 4

[0036] The embodiment is the same as Example 1, except that it further includes a connecting seat 4 fixed on the base plate body 1, and a plurality of spring pieces 3 are arranged in sequence and fixed on the connecting seat 4 to form a spring clip with the connecting seat 4; the spring pieces 3 and the connecting seat 4 are integrally formed.

[0037] There are two spring clamps, which are respectively fixed on the front and rear sides of the base plate body 1 and clamp the movable needle 2 inward. The movable needle 2 has a front-to-back symmetrical needle body structure, and the two spring clamps are respectively matched with the front and rear sides of the movable needle 2; it also includes a pressure plate 5, and a positioning pin 51 is provided on the pressure plate 5 located on the rear side, and a positioning hole that cooperates with the positioning pin 51 is provided on the base plate body 1 and the connecting seat 4. Example 5

[0038] The embodiment is the same as Example 1, except that it also includes a needle remover 6 that can be inserted into the bottom plate. A slope 61 is provided at the lower part of the needle remover 6. The slope 61 is set toward the front and lower part or the rear and lower part. The slope 61 contacts and cooperates with the spring piece 3. The downward moving needle remover 6 pushes the free end of the spring piece 3 forward or backward through the slope, and the spring piece 3 and the movable needle 2 are released from the clamp after being pushed outward.

[0039] The lower part of the needle remover 6 is provided with a boss 63 protruding toward the moving needle 2. The thickness of the needle remover with the boss 63 is still smaller than the interval between two adjacent moving needles 2. The needle remover 6 is inserted downward, thereby driving the boss 63 to move downward. Then the needle remover 6 is slightly moved horizontally toward the moving needle 2, so that the upper end surface of the boss 63 is located below the lower end of the first block 21, providing space for pulling out the moving needle 2. When pulling out the needle remover 6, the moving needle 2 can also be smoothly pulled out for replacement.

[0040] The needle remover 6 has a symmetrical structure. The front and rear sides of the lower part of the needle remover 6 are provided with inclined surfaces. The lower part of the needle remover 6 is provided with a slot 62, which can facilitate the insertion of the needle remover 6 into the base plate. The inclined surfaces 61 are symmetrically distributed on the front and rear sides of the slot 62.

[0041] The width of the needle remover 6 is smaller than the interval between two adjacent movable needles 2; the inclination angle between the inclined surface 61 and the horizontal plane is 65°. Example 6

[0042] A needle changing method for a base plate, comprising the above-mentioned needle changing structure for a base plate, comprising the following steps:

[0043] The movable needle 2 is clamped on the bottom plate body 1 through the spring piece 3;

[0044] Prepare the needle remover 6;

[0045] Insert the needle remover 6 vertically downward into the gap between the moving needles 2;

[0046] Continue to push the needle remover 6 downward, so that its inclined surface 61 contacts the inner end surface of the spring piece 3 and pushes the spring piece 3 outward, and the second clamping block 31 on the spring piece 3 disengages from the movable needle 2, releasing the clamp;

[0047] The boss 63 on the needle remover 6 moves to the bottom of the first block 21, and the needle remover 6 is pulled out, and the needle 2 is pulled out together. When the inclined surface 61 opens the spring piece 3, the spring piece 3 slightly expands outward, and a new needle can be directly inserted;

[0048] Insert the new movable needle 2 into the base plate body 1.

[0049] In short, the above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A needle changing method for a base plate, characterized in that: It comprises a bottom plate body (1), a movable needle (2) mounted on the bottom plate body (1), and a spring (3), one end of the spring (3) being fixed on the bottom plate body (1), and the other end of the spring (3) being a free end, the free end of the spring (3) cooperating with the movable needle (2) and clamping the movable needle (2) on the bottom plate body (1); The specific steps include: The movable needle (2) is clamped on the bottom plate body (1) through the spring piece (3); a first clamping block (21) is provided at the lower part of the movable needle (2); a second clamping block (31) is provided on the free end of the spring piece (3) and contacts and cooperates with the first clamping block (21); the second clamping block (31) is located above the first clamping block (21) and clamps the movable needle (2) on the bottom plate body (1); a clamping groove (22) is also provided on the movable needle (2); the clamping groove (22) is located above the first clamping block (21); the second clamping block (31) cooperates with the clamping groove (22) and is placed in the clamping groove (22); the lower part of the spring piece (3) is located between two adjacent movable needles (2); the width of the lower part of the spring piece (3) is smaller than the interval between the two adjacent movable needles (2); the second clamping block (31) is located on the left or right side of the upper part of the spring piece (3), and the second clamping block (31) extends leftward or rightward into the clamping groove (22); A needle remover (6) is prepared to be inserted into the bottom plate. A bevel (61) is provided at the lower portion of the needle remover (6). The bevel (61) is arranged toward the front lower portion or the rear lower portion. The bevel (61) contacts and cooperates with the spring sheet (3). The downwardly moving needle remover (6) pushes the spring sheet (3) forward or backward through the bevel. A boss (63) is provided at the lower portion of the needle remover (6) that protrudes toward the moving needle (2). Insert the needle remover (6) vertically downward into the gap between the moving needles (2); Continue to push the needle remover (6) downward, so that its inclined surface (61) contacts the inner end surface of the spring (3) and pushes the spring (3) outward, so that the second clamping block (31) on the spring (3) is disengaged from the movable needle (2), and the clamp is released; The boss (63) on the needle remover (6) moves to the bottom of the first clamping block (21), and the needle remover (6) is pulled out, and the needle (2) is pulled out together with it; Insert the new moving needle (2) into the bottom plate body (1).

2. The needle-changing method for a base plate according to claim 1, characterized in that: The first clamping block (21) protrudes outwards, and the distance the first clamping block (1) protrudes outwards gradually decreases from top to bottom.

3. The needle changing method of a base plate according to claim 1, characterized in that: It also includes a connecting seat (4) fixed on the base plate body (1), and a plurality of spring pieces (3) are arranged in sequence and fixed on the connecting seat (4) to form a spring clamp with the connecting seat (4); the spring pieces (3) and the connecting seat (4) are integrally formed.

4. The needle-changing method for a base plate according to claim 3, characterized in that: There are two spring clamps, which are respectively fixed on the front and rear sides of the base plate body (1) and clamp the movable needle (2) inwardly. The movable needle (2) has a needle body structure that is symmetrical in front and back. The two spring clamps are respectively matched with the front and rear sides of the movable needle (2); and further comprising a pressing plate (5), the pressing plate (5) is provided with a positioning pin (51), and the base plate body (1) and the connecting seat (4) are provided with a positioning hole that matches the positioning pin (51).

5. The needle-changing method for a base plate according to claim 1, characterized in that: The needle remover (6) has a symmetrical structure. The front and rear sides of the lower portion of the needle remover (6) are both provided with inclined surfaces (61). The lower portion of the needle remover (6) is provided with a slot (62). The inclined surfaces (61) are symmetrically distributed on the front and rear sides of the slot (62).

6. The needle-changing method for a base plate according to claim 1, characterized in that: The width of the needle remover (6) is smaller than the interval between two adjacent movable needles (2); and the inclination angle of the inclined surface (61) to the horizontal plane is 50° to 80°.

Images