Resettable needle plate structure

Abstract

The utility model discloses a resettable needle plate structure, which comprises a knitting needle provided with a knitting needle body and a tail end, an upper stitch is arranged at the upper part of the tail end, and a lower stitch is arranged at the lower part of the tail end; the needle plate body is provided with a guide surface for guiding a knitting needle to fluctuate in the knitting process; the plurality of guide sheets extend along the width direction of the needle plate body, and a gap is reserved between every two adjacent guide sheets; the two adjacent guide sheets and the guide surface of the clamped needle plate body form a needle groove taking the guide surface of the needle plate body as a groove bottom; the sinking groove is formed in the needle plate body, the sinking groove is lower than the groove bottom of the needle groove, the sinking groove is located under the lower stitch after knitting of the knitting needle is reset, and the depth of the sinking groove is larger than the height, exposed out of the needle groove, of the upper stitch. According to the scheme, the sinking groove is formed, so that the knitting needle can completely sink into the needle groove after the upper needle foot is pressed, and the needle collision accident of the upper needle foot and the triangle when the knitting needle does not need triangle guiding is avoided.

Description

Technical Field

[0001] The utility model relates to a needle plate mechanism of a flat knitting machine, in particular to a resettable needle plate structure. Background Art

[0002] The reciprocating motion of the cam bottom plate of the flat knitting machine drives the knitting needles to extend and retract in the needle grooves to complete various actions when knitting fabrics. The existing needle plate structure usually includes a needle plate, a knitting needle assembly, and a cam.

[0003] The existing knitting needle movement is usually completed by the cooperation between the pins on the knitting needle assembly and the triangle assembly. The triangle moves at high speed under the guidance of the driving mechanism to complete the final fabric weaving. However, in the process of guiding the movement trajectory of the knitting needle assembly, the pin part on the knitting needle is not always in a state that needs to be guided. At this time, when the pin of the knitting needle is higher than the needle groove, it is easy to cause the needle to hit. Minor damage will cause the knitting needle, and severe cases may even cause the needle groove of the needle plate to be distorted and deformed, and the entire needle plate needs to be repaired. Utility Model Content

[0004] The utility model aims to provide a resettable needle plate structure to reduce unnecessary exposure of needles during knitting and reduce the probability of collision between needles and cam components.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A resettable needle plate structure, comprising

[0007] A knitting needle, the knitting needle comprising a knitting needle body and a tail end, wherein an upper pin protruding upward is arranged at the upper portion of the tail end, and a lower pin protruding downward is arranged at the lower portion of the tail end;

[0008] A needle plate body, wherein the needle plate body has a guide surface for guiding the knitting needles to rise and fall during knitting;

[0009] A plurality of guide plates, wherein the plurality of guide plates extend along the width direction of the needle plate body, and gaps are left between adjacent guide plates;

[0010] The two adjacent guide plates and the guide surface of the clamped needle plate body form a needle groove with the guide surface of the needle plate body as the groove bottom;

[0011] The sinking groove is arranged in the needle plate body, and the sinking groove is arranged below the bottom of the needle groove. The sinking groove is located directly below the lower stitch after the knitting needle is reset, and the depth of the sinking groove is greater than the height of the upper stitch exposed from the needle groove.

[0012] Preferably, the guide piece is formed by uniformly slotting the needle plate body.

[0013] Preferably, the guide piece is in sheet shape and can be detachably plugged into the needle plate body.

[0014] Preferably, the upper edge of the sinking groove and the needle outlet side of the knitting needle have an inclined first guiding slope.

[0015] Preferably, a second guiding slope is provided between the lower stitch of the knitting needle and the lower edge of the tail end and is inclined in the same direction as the first guiding slope.

[0016] Preferably, a magnetic steel is arranged in the sinking groove to attract the lower pin sunk into the sinking groove.

[0017] Preferably, the sinking groove is a through groove penetrating the needle plate body, a support plate is fixed on the bottom of the needle plate body, and the magnetic steel is fixed on the support plate.

[0018] Preferably, a magnetic steel seat is fixed on the support plate, and a magnetic steel is embedded in the magnetic steel seat.

[0019] Preferably, a buffer sheet is also provided on the upper portion of the magnetic steel seat, and the buffer sheet covers the magnetic steel.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The above structure provides a sinking groove lower than the bottom of the groove on the needle plate body, so that the lower stitch on the tail end of the pointer after reset has space to sink. The space ensures that when the upper stitch of the knitting needle is subjected to downward pressure (from the triangular component that drives the upper stitch of the knitting needle to stop working and guides it to sink into the needle groove), the upper stitch is immersed in the needle groove by the lower stitch sinking into the sinking groove, thereby avoiding the occurrence of needle collision caused by the upper stitch being hit by other triangular components, and providing effective protection for the smooth operation of the computer flat knitting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the knitting needle in the first embodiment when it is in the needle-out state;

[0023] Figure 2 is a schematic structural diagram of the knitting needle in the first embodiment when it is in a reset state;

[0024] Figure 3 is a schematic diagram of the structure when the knitting needles in Embodiment 1 begin to be pulled out;

[0025] Figure 4 is a schematic structural diagram of the needle plate body in Example 1;

[0026] Figure 5 is a schematic diagram of the structure of the knitting needle in Example 2;

[0027] Figure 6is a schematic structural diagram of the knitting needle in the second embodiment when it is in the needle-out state;

[0028] Figure 7 is a schematic structural diagram of the knitting needle in the reset state in Embodiment 2;

[0029] Figure 8 is a schematic structural diagram of the knitting needles in Embodiment 2 when they start to come out;

[0030] Fig. 9 It is a structural schematic diagram of the needle plate body in Example 2.

[0031] Figure numerals: 1. needle plate body 101. guide surface 2. knitting needle 201. tail end 202. lower stitch 203. upper stitch 204. second guide slope 3. push needle 4. needle selection 5. support plate 6. magnetic steel seat 7. buffer plate 8. magnetic steel 9. sinking groove 901. first guide slope 10. guide plate. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example 1

[0036] During the operation of the computer flat knitting machine, the mechanism of the computer flat knitting machine moves back and forth quickly on the needle plate of the computer flat knitting machine, and guides the various knitting needle assemblies on the needle plate to complete the knitting action by controlling the triangle in the machine head. It should be noted that the existing pointer assembly is mainly composed of a pointer 2, a needle pusher 3 and a needle selector 4, among which the triangle assembly structure that controls the knitting needle is the most complex, and the running trajectory of the triangle assembly is also relatively complex. During the operation of the machine head, the knitting needle and the triangle often fail to cooperate properly, causing a needle collision accident. In mild cases, the knitting needle is damaged, and in severe cases, the needle plate and the triangle assembly are easily deformed and damaged, affecting the normal operation of the subsequent computer flat knitting machine. It should be noted that the occurrence of the above-mentioned needle collision is mainly caused by the upper pin 204 of the tail end 201 of the knitting needle 2 extending out of the needle groove due to the knitting needle not being reset in place, and colliding with the passing triangle.

[0037] For this reason, the applicant believes that when the knitting needle is not in a working state, it only needs to be guided to sink into the needle groove, which will inevitably reduce the probability of needle collision accidents.

[0038] To achieve the above functions, Figures 1 to 5 As shown, it includes a needle plate body 1, the upper surface of which has a certain undulating curve. When the needle row is arranged on the needle plate body, the upper surface of the needle plate body 1 serves as a support surface, which can guide the needle abutting on the surface to follow the undulating motion. It should be noted that in this solution, the upper surface of the needle plate having the guiding function is defined as the guide surface 101.

[0039] In addition, if Figure 4 As shown, the upper surface of the needle plate body is also grooved downward to form a plurality of equally spaced guide pieces 10, which extend along the width direction of the needle plate body 1, and two adjacent pieces form a pair, clamping a guide surface with an undulating curve, thereby forming a needle groove with an upper portion and two ends open. It should be noted that the pointer 2, the push needle 3 and the selector needle 4 in the knitting needle assembly are all slidably inserted into the needle groove to ensure stability during knitting.

[0040] It should also be noted that a plurality of sinking grooves 9 are provided in the needle plate body 1. The sinking grooves are arranged in the needle grooves and are arranged below the groove bottom of the needle grooves so that when the tail end 201 of the knitting needle is subjected to downward pressure, there is a margin for downward sinking. Specifically, the pointer used in this solution is as follows Figure 5 As shown, the knitting needle has a tail end 201, the lower part of which protrudes downward to form a lower stitch 202, and the upper part of which protrudes upward to form an upper stitch 203. Figure 1 , Figure 3 As shown, when the lower pin of the knitting needle is not sunk into the sinking groove, the lower pin abuts against the bottom of the needle groove, and the upper pin extends to the upper edge of the needle groove. At this time, the support is in a state guided by the cam assembly. Figure 2 As shown, when the upper pin of the knitting needle is pushed downward by the passing triangle, the lower pin of the knitting needle dips into the sinking groove, and the upper pin sinks into the needle groove under the push of the triangle S1. It should be noted that in this embodiment, in order to ensure that the upper pin can be completely sunk into the needle groove, the depth of the sinking groove needs to be greater than the maximum height of the upper pin exposed from the needle groove.

[0041] It should be noted that in this solution, it is more preferred that an inclined first guide slope 901 is provided at the upper edge of the sinking groove 9. Specifically, the first guide slope is provided at the upper edge of the needle exit side. Then, when the needle needs to exit the sinking groove, the lower end of the lower needle foot of the needle can slide out smoothly along the first guide slope.

[0042] More preferably, a second guiding slope 204 inclined in the same direction as the first guiding slope 901 can be provided between the lower stitch 202 of the knitting needle 2 and the lower edge of the tail end 201. Then the process of the knitting needle exiting the sinking groove will be smoother, and the situation of skipped stitches will be prevented.

[0043] In addition, in some embodiments, the following structure can be provided to ensure that the knitting needle remains in a more stable state after sinking into the needle groove. Figure 1 As shown, a magnetic steel 8 is also fixed in the sinking groove 9. The magnetic steel is a strong magnet, and the lower pin of the knitting needle can be attracted by the magnetic steel. Then, when the lower pin 202 of the knitting needle sinks into the sinking groove, the lower pin is attracted by the magnetic steel.

[0044] In addition, in order to facilitate the installation of the magnet in the sinking groove, the sinking groove is a through groove that runs through the upper and lower sides of the needle plate body. At the same time, a support plate 5 fixedly connected to the needle plate can be detachably installed at the bottom of the needle plate body. On the upper surface of the support plate, the magnet 8 is fixedly installed on the support plate by glue, bolts, etc.

[0045] As a preferred method, the fixing of the magnet on the support plate can be achieved by embedding. Specifically, a magnet seat can be installed on the support plate by bolts, and a groove for embedding the magnet is provided on the top of the magnet seat 6, and the magnet is embedded in the magnet seat as a whole.

[0046] In addition, it should be noted that the strong magnets used in the magnetic steel in this solution are usually neodymium magnets, which are brittle in nature and are prone to breakage when impacted by the sinking lower stitch. If the debris enters the needle groove, it is very easy to cause the knitting needle to be unable to reset. To avoid this situation, this solution installs a buffer sheet 7 on the magnetic steel seat. The buffer sheet covers the magnetic steel to withstand the impact from the lower stitch. It should be noted that in order to better export the magnetism. The buffer sheet can be made of iron sheet.

[0047] Example 2

[0048] like Figures 6 to 9 The resettable needle plate structure shown in the figure is different from the embodiment 1 in that in the present embodiment, the guide piece 10 forming the needle groove is a separate structure from the needle plate body. Specifically, a plurality of grooves for inserting the guide pieces are provided on the upper surface of the needle plate body. When the guide pieces are inserted into the grooves, the guide pieces clamp the guide surfaces to form the needle groove for guiding the knitting needle assembly.

[0049] It should be noted that the advantage of the above embodiment is that when a needle collision accident occurs, the guide plate that is impacted and the needle plate body are separate structures, so only the deformed guide plate needs to be replaced, and the needle plate body remains intact, thereby improving the maintenance convenience of the computerized flat knitting machine.

[0050] Working principle: In this scheme, the working principle of the knitting needle in knitting is that the knitting needle 2, the push needle 3 and the selector needle 4 are installed in the needle groove in sequence. When the needle is removed, the selector needle 4 is pushed to the specified position by the external triangle mechanism, and drives the push needle 3 to move. When the push needle 3 moves, it drives the knitting needle 2 to move, and finally pushes the knitting needle 2 to the specified position to realize various needle removal actions. When the knitting needle 2 is reset, when the knitting needle 2 is reset to the sinking groove 9 of the needle plate body 1 by the external triangle, the reset triangle S1 presses the upper pin 203 to sink into the needle groove (such as Figure 2 , Figure 7 At the beginning of the needle, the knitting needle 2 is pushed forward by the needle selection 3, and under the action of the second guide inclined surface 204, the upper needle pin 203 is slowly lifted up until the lower needle pin 202 contacts the bottom of the needle slot, and the upper needle pin 203 is exposed from the needle slot.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated 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 that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A resettable needle plate structure, characterized in that: include A knitting needle (2), the knitting needle (2) comprising a knitting needle (2) body and a tail end (201), the upper portion of the tail end (201) being provided with an upper stitch (203) protruding upward, and the lower portion of the tail end (201) being provided with a lower stitch (202) protruding downward; A needle plate body (1), wherein the needle plate body (1) has a guide surface (101) for guiding the knitting needles (2) to rise and fall during the knitting process; A plurality of guide plates (10), wherein the plurality of guide plates (10) extend along the width direction of the needle plate body (1), and gaps are left between adjacent guide plates (10); The two adjacent guide plates (10) and the guide surface (101) of the clamped needle plate body (1) form a needle groove with the guide surface (101) of the needle plate body (1) as the groove bottom; A sinking groove (9), wherein the sinking groove (9) is arranged in the needle plate body (1), and the sinking groove (9) is arranged below the groove bottom of the needle groove, the sinking groove (9) is located directly below the lower stitch (202) of the knitting needle (2) after knitting is reset, and the depth of the sinking groove (9) is greater than the height of the upper stitch (203) exposed from the needle groove.

2. A resettable needle plate structure according to claim 1, characterized in that: The guide piece (10) is formed by uniformly slotting the needle plate body (1).

3. A resettable needle plate structure according to claim 1, characterized in that: The guide sheet (10) is in sheet shape and can be detachably plugged into the needle plate body (1).

4. A resettable needle plate structure according to claim 1, characterized in that: The upper edge of the sinking groove (9) and the needle exit side of the knitting needle (2) are provided with an inclined first guiding slope (901).

5. A resettable needle plate structure according to claim 4, characterized in that: A second guiding slope (204) inclined in the same direction as the first guiding slope (901) is provided between the lower stitch (202) of the knitting needle (2) and the lower edge of the tail end (201).

6. A resettable needle plate structure according to claim 1, characterized in that: A magnetic steel (8) is arranged in the sinking groove (9) to attract the lower pin (202) sunk into the sinking groove (9).

7. A resettable needle plate structure according to claim 6, characterized in that: The sinking groove (9) is a through groove that penetrates the needle plate body (1); a support plate (5) is fixedly arranged at the bottom of the needle plate body (1); and the magnetic steel (8) is fixed on the support plate (5).

8. A resettable needle plate structure according to claim 7, characterized in that: A magnetic steel seat (6) is fixed on the support plate (5), and a magnetic steel (8) is embedded in the magnetic steel seat (6).

9. A resettable needle plate structure according to claim 8, characterized in that: A buffer sheet (7) is also provided on the upper part of the magnetic steel seat (6), and the buffer sheet (7) covers the magnetic steel (8).

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