A needle bed structure for a flat knitting machine with sectional inserts

Abstract

The utility model relates to the field of flat knitting machine, especially a flat knitting machine sectional type insert piece's needle bed structure, including needle bed, the needle bed is provided with a plurality of wide slot and narrow slot, is provided with thick insert piece in the wide slot, is provided with thin insert piece in the narrow slot, thick insert piece, thin insert piece interval setting, wherein, thin insert piece includes independently setting's front section insert piece, rear section insert piece, the front section insert piece is close to needle bed mouth one section embedding part and is embedded in the narrow slot, the rest or is embedded in the narrow slot, or is not embedded in the narrow slot. Through separating design of thin insert piece, can make its front section insert piece's maintenance replacement more convenient.

Description

Technical Field

[0001] This utility model relates to the field of flat knitting machines, and specifically refers to a needle bed structure with segmented inserts on a flat knitting machine. Background Technology

[0002] Computerized flat knitting machine is a double-needle plate weft knitting machine. Through the knitting head and the cam mechanism set on the cam base plate of the knitting head, the cam system drives the knitting needles set in the needle grooves of the needle plate to move up and down along the needle grooves during the reciprocating motion of the knitting head along the guide rail. With the cooperation of the cam mechanism and the tensioning mechanism, the knitting of the fabric is completed.

[0003] With the continuous improvement of the intelligence of computerized flat knitting machines, the use of flat knitting machines is becoming more and more widespread. The existing disclosed or actually used flat knitting needle plate combination structure usually adopts a three-piece structure with inserts, teeth, and sinkers (i.e., inserts, teeth, and sinkers, where inserts can also be called guards). Several inserts are embedded in the needle bed, and every two adjacent inserts form a needle groove. The needle moves in the needle groove along a set direction (back and forth). The teeth are located in the insert groove at the front end of the needle bed, the teeth are located between the inserts and the sinkers, one side of the insert is located on the needle body spring plate groove side, and the other side is located on the teeth plate side side. The sinkers are located in the sinker track groove formed by the other side of the teeth plate and the side near the non-spring plate needle body groove. Usually, one sinker corresponds to one needle. Its core function is to press down and control the old loop when the needle rises and retracts, and to assist in the feeding and loop formation of new yarn.

[0004] In order to maximize the density of needle distribution and meet the functional requirements of knitting, the applicant applied for a flat knitting machine needle bed structure in CN222758454U, which optimizes the needle bed space by setting thick (wide) inserts and thin (narrow) inserts at intervals.

[0005] Based on this, after a period of production trials, the applicant found that there was still room for further improvement, and that the processing efficiency could be optimized while improving the efficiency of insert assembly and disassembly.

[0006] Therefore, the inventors conducted further research and developed a needle bed structure for a segmented insert type of flat knitting machine, which led to this invention. Utility Model Content

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A segmented insert needle bed structure for a flat knitting machine, comprising:

[0009] The needle bed has several wide and narrow slots. Thick inserts are installed in the wide slots, and thin inserts are installed in the narrow slots. The thick and thin inserts are spaced apart.

[0010] Thin inserts include independently configured front inserts and rear inserts.

[0011] The front insert has a section that is embedded in a narrow slot near the needle bed opening, while the rest of the insert may or may not be embedded in the narrow slot.

[0012] The terms "thick insert" and "thin insert" here are relative to each other, not absolute limitations. This structural improvement mainly targets the thin insert in the prior patent. Since the applicant discovered that the thin insert primarily functions as a spacer in the overall structure and has minimal impact on stress, its structural strength can be less than that of the thick insert. Generally, the combination needles used on a flat knitting machine include knitting needles (the section containing the needle hook), long needles, spring needles, and selector needles, the latter three of which have needle heels. The inserts located on both sides of the combination needles need to be positioned using several positioning wires. Considering the function of the thin insert, it can be cut in the middle. In this case, the front end of the thin insert is fixed by a pressure gauge, and the rear end is fixed by a spring needle limiting wire. The front insert can be removed separately during disassembly.

[0013] Furthermore, a spring pin limiting wire and a rear positioning wire are provided at the junction of the front insert and the rear insert, with the end of the front insert located between the spring pin limiting wire and the rear positioning wire.

[0014] Furthermore, a groove is provided below the front insert for the front positioning steel wire to pass through.

[0015] Since the groove is an open rather than closed structure, the front positioning wire plays a positioning role rather than a fixing role for the front insert.

[0016] Furthermore, a stepped clearance structure is provided on the ends of the front insert corresponding to the spring pin limiting steel wire and the rear positioning steel wire.

[0017] The front insert, which is more likely to be damaged, is more likely to need to be replaced. Therefore, it is easier to disassemble and assemble it by setting a clearance structure at its end.

[0018] Furthermore, several through holes are provided on the rear insert.

[0019] The through holes on the rear insert are also used to thread the positioning steel wire, but since the frequency of disassembly is lower than that of the front insert, the through holes can be used to thread the steel wire.

[0020] Furthermore, at the junction of the front and rear inserts, the junction line slopes towards the rear insert.

[0021] With this structure, the front insert is not affected by the rear insert when it is inserted or removed.

[0022] Furthermore, when a section of the front insert is embedded in a narrow slot near the needle bed opening, while the rest is not embedded in the narrow slot, no narrow slot is provided at the corresponding position of the needle bed.

[0023] Furthermore, the depth of the narrow slot where the thin insert is located is less than or equal to the depth of the wide slot where the thick insert is located.

[0024] Furthermore, a middle section insert is separated from the front section insert, and the middle section insert is provided with a protrusion that is embedded into a narrow slot.

[0025] Furthermore, the rear insert may or may not be embedded in the narrow slot.

[0026] By adopting the above solution, this utility model has the following advantages compared with the prior art:

[0027] By segmenting the thin inserts in the thick and thin insert structure of the needle bed, the difficulty of replacing the thin inserts and the replacement cost can be reduced. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the present invention;

[0029] Figure 2 yes Figure 1 A diagram showing the result after removing the combination needles;

[0030] Figure 3 This is a schematic diagram of a thin insert;

[0031] Figure 4 This is a schematic diagram of another embodiment of the thin insert;

[0032] Figure 5 This is a schematic diagram of yet another embodiment of the thin insert;

[0033] Label Explanation

[0034] Thin insert 1, front insert 11, groove 111, insert part 112,

[0035] Rear insert 12, through hole 121, junction 13 (between the front and rear inserts)

[0036] First-stage avoidance step 14, second-stage avoidance step 15, middle section insert 16, protrusion 161;

[0037] Thick insert 2;

[0038] Knitting needle 31, double needle 32, spring needle 33, selector needle 34;

[0039] Needle bed 4, front positioning steel wire 41, rear positioning steel wire 42. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] like Figure 1 As shown, a segmented insert needle bed structure for a flat knitting machine includes a needle bed 4 with several slots. Thick inserts 2 and thin inserts 1 are arranged in the slots, spaced apart. A combination needle is positioned between the thick inserts and thin inserts 1. Figure 1 For clarity, only partial structures of the combination needle, insert, and needle bed are shown. The combination needle includes a knitting needle 31, a long needle 32, a spring needle 33, and a selector needle 34. The position of the knitting needle is taken as the front end of the needle bed, and the position of the selector needle is taken as the tail end or rear end of the needle bed. The thin insert 1 is divided into a front insert 11 set at the front end of the needle bed and a rear insert 12 set at the rear end of the needle bed.

[0042] like Figure 2 As shown, the junction 13 of the front insert 11 and the rear insert 12 is located in the middle of the needle bed, and this junction 13 is inclined towards the rear insert 12 to facilitate the loading and unloading of the front insert; a rear positioning wire is provided on the needle bed at the junction, and a front positioning wire is provided on the needle bed below the front end of the long needle. The front insert 11 at the locations of the front and rear positioning wires is provided with a clearance structure, as shown in the reference diagram. Figure 3 The front insert 11 has a groove 111 corresponding to the front positioning wire, and the front insert 11 has a first-stage avoidance step 14 corresponding to the rear positioning wire. At the same time, since the thick insert at this junction has a transverse feeler gauge, the front insert 11 at this point not only needs to avoid the spring pin limiting wire above, but also needs to avoid the feeler gauge. Therefore, the front insert 11 at this point is a second-stage avoidance step 15.

[0043] The restriction and fixation of the front insert 11 mainly rely on the front positioning steel wire 41 and the rear positioning steel wire 42 located at the bottom edge of the front insert 11, as well as the spring pin limiting steel wire (only the through hole on the thick insert is shown in the figure) and the feeler gauge (not shown in the figure, corresponding to the trapezoidal groove opened on the thick insert, the spring pin limiting steel wire and the feeler gauge correspond to the second-stage avoidance step 15); the restriction of the rear insert 12 is achieved by opening several through holes 121 on it, and positioning is also done with steel wire.

[0044] like Figure 4 As shown, the front section 11 of the thin insert can have only one insert portion 112 near the needle bed opening, which is inserted into the narrow slot; the rest does not require a slot for insertion. In this case, the corresponding position on the needle bed does not need a slot. Meanwhile, Figure 4 The middle section only uses positioning wires for positioning, so the front insert 11 does not need to use a step to avoid obstacles at the junction; and the rear insert does not embed into the narrow slot.

[0045] like Figure 5 As shown, the front section of the thin insert 11 is separated into a middle section 16. At this time, the front section 11 only has a portion that is embedded in the narrow slot (not completely submerged), while the middle section 16 has a protrusion 161 near the front section 11. The middle section insert is embedded into the narrow slot by the protrusion 161.

[0046] The above are merely specific embodiments of this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this utility model are for reference only and are not absolute limitations. Any non-substantial modifications made to this utility model shall be considered as infringing upon the protection scope of this utility model.

Claims

1. A needle bed structure for a segmented insert type on a flat knitting machine, characterized in that: include The needle bed has several wide and narrow slots. Thick inserts are installed in the wide slots, and thin inserts are installed in the narrow slots. The thick and thin inserts are spaced apart. Thin inserts include independently configured front inserts and rear inserts. The front insert has a section that is embedded in a narrow slot near the needle bed opening, while the rest of the insert may or may not be embedded in the narrow slot.

2. The needle bed structure of a segmented insert type flat knitting machine according to claim 1, characterized in that: A spring pin limiting wire and a rear positioning wire are provided at the junction of the front insert and the rear insert, and the end of the front insert is located between the spring pin limiting wire and the rear positioning wire.

3. The needle bed structure of a segmented insert type for a flat knitting machine according to claim 2, characterized in that: A groove is provided below the front insert for the front positioning steel wire to pass through.

4. The needle bed structure of a segmented insert type flat knitting machine according to claim 1, 2, or 3, characterized in that: The front insert plate has a stepped clearance structure on the end of the spring pin limiting steel wire and the rear positioning steel wire.

5. The needle bed structure of a segmented insert type flat knitting machine according to claim 1, 2, or 3, characterized in that: Several through holes are provided on the rear insert.

6. The needle bed structure of a segmented insert type on a flat knitting machine according to claim 5, characterized in that: At the junction of the front and rear inserts, the boundary line slopes towards the rear insert.

7. The needle bed structure of a segmented insert type for a flat knitting machine according to claim 1, characterized in that: When a section of the insert near the needle bed opening is embedded in a narrow slot, and the rest is not embedded in the narrow slot, no narrow slot is provided at the corresponding position of the needle bed.

8. The needle bed structure of a segmented insert type for a flat knitting machine according to claim 1, characterized in that: The depth of the narrow slot where the thin insert is located is less than or equal to the depth of the wide slot where the thick insert is located.

9. The needle bed structure of a segmented insert type flat knitting machine according to claim 1, 2, or 3, characterized in that: A middle section is separated from the front section insert, and the middle section insert has a protrusion that is embedded into a narrow slot.

10. The needle bed structure of a segmented insert type for a flat knitting machine according to claim 1, 2, 3, or 7, characterized in that: The rear insert may or may not be embedded in the narrow slot.

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