A kind of weaving process of flat knitting machine without wireless head

Abstract

The present invention relates to the field of computerized flat knitting machines, and in particular to a flat knitting machine wireless head knitting process, which is characterized by comprising: step 10: waiting for thread cutting after the fabric is knitted; step 20: using a thread hooking yarn mouth to move the thread horizontally to hook the thread so that the thread is kept inside or on the inner surface of the fabric; step 30: the knitting yarn mouth moves horizontally in the opposite direction relative to step 20 to move the yarn to be cut to the thread cutting position; step 40: cutting the thread; step 50: the thread hooking yarn mouth moves horizontally again to hook all thread ends to the knitting area, so that the thread ends are knitted together in the coil or on the inner surface of the fabric. After adopting the above scheme, wireless head knitting can be realized more simply and practically.

Description

Technical Field

[0001] The invention relates to the field of computer flat knitting machines, in particular to a wireless head knitting process for a flat knitting machine. Background Art

[0002] The existing thread cutting device of the flat knitting machine is generally fixed outside the weaving area. The farther the weaving position is from the thread cutting position, the longer the remaining thread ends on the outside of the fabric will be, and manual cutting of the thread ends is required later.

[0003] The latest technology now also has a thread cutting device above the knitting needle plate, which needs to be used with specific composite knitting needles, or a jet device is set to blow the thread ends into the fabric. The former has a movement trajectory of the thread cutting device intersecting with the knitting needles, which will cause a bad needle rate. The latter requires an additional blowing device, which is easy to disrupt the operation of the yarn and cannot fundamentally solve the problem.

[0004] Therefore, the inventor conducted further research on this and developed a wireless head-free knitting process for a flat knitting machine, which resulted in the present invention. Summary of the invention

[0005] The object of the present invention is to provide a wireless head-free knitting process for a flat knitting machine, which can realize wireless head-free knitting in a simpler and more practical way.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] A flat knitting machine wireless head knitting process, comprising:

[0008] Step 10: After the fabric is woven, wait for the thread to be cut;

[0009] Step 20: Use a hook yarn mouth to hook the yarn horizontally so that the yarn remains on the inside or inner surface of the fabric;

[0010] Step 30: The knitting yarn mouth is translated in the opposite direction relative to step 20 to move the yarn to be cut to the cutting position;

[0011] Step 40: Cut the yarn;

[0012] Step 50: Move the yarn mouth horizontally again to hook all the thread ends into the weaving area so that the thread ends are woven together in the loop or inside the fabric.

[0013] A yarn hooking mouth is provided to assist in hooking the yarn, so that the yarn originally located outside the fabric is hooked back to the inside of the fabric, thereby leaving the thread end inside the fabric after the fabric is knitted.

[0014] Further, when changing the yarn, steps 10-50 are repeated to make the thread trimmer move in coordination with the knitting yarn mouth.

[0015] Further, the thread trimming action is achieved by a mobile scissor mechanism, which is arranged below the needle plate and enters the thread trimming position before step 30.

[0016] Furthermore, the movable scissor mechanism comprises scissors and a hook knife arranged on one side of the scissors, and the hook knife hooks the yarn and then cuts it by the scissors.

[0017] Furthermore, the hook knife of the mobile scissors mechanism comprises an upper hook knife and a lower hook knife, and the hook teeth of the upper hook knife and the lower hook knife are arranged facing each other.

[0018] The traditional hook knife is a single hook knife, and the double hook knife can ensure that the yarn can be hooked no matter which side it is on, and can ensure that the hook teeth of the hook knife are not exposed to affect other components.

[0019] Furthermore, a thread hooking head is arranged at the end of the thread hooking yarn mouth, one end of the thread hooking head is a pointed end for pushing away the yarn, and the other end is an open end for hooking the yarn.

[0020] Further, the moving scissor mechanism includes the following actions:

[0021] The hook knife rises, the scissor blade and the wire clamp blade open;

[0022] The hook knife descends, the scissor blade and the thread clamping blade close to cut the thread and clamp the thread at the same time;

[0023] The thread clamp opens to release the thread.

[0024] Further, in step 40, the yarn is cut and then clamped by a clamping piece.

[0025] Furthermore, the movable scissor mechanism is arranged between two rollers for pulling the cloth, and the movable scissor mechanism can move along the guide rail between the rollers when the rollers are opened.

[0026] Furthermore, when the positions of the yarn mouths ...

[0027] A reset spring is arranged above the hook yarn mouth, which can slide in the positioning groove. The reset spring enables it to have reset ability. When alternating with other knitting yarn mouths, the knitting yarn mouth makes room when it touches the hook thread head of the hook yarn mouth, so that the alternation of the knitting yarn mouths can be completed normally.

[0028] After adopting the above scheme, the present invention has the following advantages compared with the prior art:

[0029] The thread cutting device is arranged under the needle plate. The hook knife hooks the yarn to be cut from the top to the thread cutting mouth of the scissors and cuts it. At the same time, it clamps a section of the thread connected to the knitting yarn mouth and can move synchronously with the knitting yarn mouth. It moves to the knitting position and releases it for knitting to make the thread end as short as possible. The hook yarn mouth can hook the cut thread end to the inside of the knitting area so that the thread end is knitted into the coil or on the back of the fabric, thus realizing the knitting of no thread end on the front side of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of step 10 of the present invention;

[0031] Figure 2 is a schematic diagram of step 20 of the present invention;

[0032] Figure 3 is a schematic diagram of step 30 of the present invention;

[0033] Figure 4 is a schematic diagram of step 40 of the present invention;

[0034] Figure 5 is a schematic diagram of step 50 of the present invention;

[0035] Figure 6 This is a schematic diagram of the hook knife rising, the scissor blades and the wire clamping blades opening;

[0036] Figure 7 It is a schematic diagram of the hook knife descending, the scissor blade cutting the wire and the wire clamping blade clamping the wire;

[0037] Figure 8 This is a schematic diagram when only the clamp is opened;

[0038] Fig. 9 It is a schematic diagram of a hook knife;

[0039] Fig.10 It is a schematic diagram of the hook yarn mouth;

[0040] Fig.11 is a schematic diagram of the mobile scissor mechanism being located between the rollers;

[0041] Fig.12 It is a schematic diagram of the knitting yarn mouth and the hooking yarn mouth.

[0042] Description of symbols

[0043] Knitting yarn mouth 1,

[0044] Thread hooking yarn mouth 2, thread hooking head 21, return spring 22,

[0045] Move the scissor mechanism 3, the hook knife 31, the upper hook knife 311, the lower hook knife 312,

[0046] Scissor blade 32, wire clamp 33,

[0047] Roller 4, motor 5. DETAILED DESCRIPTION

[0048] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0049] A flat knitting machine wireless head knitting process, which is mainly achieved through the following steps:

[0050] Step 10: After the fabric is woven, wait for the thread to be cut. Figure 1 As shown;

[0051] Step 20: Move the yarn mouth 2 to the right to hook the yarn so that the yarn remains on the inner side or inner surface of the fabric, such as Figure 2 As shown;

[0052] Step 30: The knitting yarn mouth 1, which is originally adjacent to the hook yarn mouth 2, moves to the left, and the yarn to be cut is moved above the mobile scissor mechanism 3 (hook knife 31), as shown in FIG. Figure 3 As shown;

[0053] Step 40: Cut the yarn, the hook knife 31 rises to hook the yarn and cuts it with scissors, such as Figure 4 As shown;

[0054] Step 50: The yarn mouth 2 moves horizontally again to hook all the thread ends into the weaving area so that the thread ends are woven together in the coil or inside the fabric, such as Figure 5 shown.

[0055] Step 10 is consistent with the existing steps, except that in the prior art, the sand spout is generally moved to the left side to cut the thread, so that the thread ends remain outside the fabric; or an additional mechanism is added to bury the thread ends in the fabric as described in the background technology.

[0056] The structure of the yarn mouth 2 is as follows: Fig.10 As shown, and refer to Fig.12 A hooking head 21 is provided at the end of the hooking yarn mouth 2, one end of the hooking head 21 is a pointed end for pushing away the yarn, and the other end is an open end for hooking the yarn, and the hooking head 21 is arranged horizontally relative to the body; it slides in the positioning groove and cooperates with the reset spring 22 to have a reset ability. When the hooking yarn mouth 2 alternates with other knitting yarn mouths 1, the knitting yarn mouth 1 makes space when it touches the hooking head 21 of the hooking yarn mouth 2, and when they are separated, the hooking head 21 is reset.

[0057] The mobile scissor mechanism 3 includes scissors and a hook knife 31. The hook knife 31 hooks the yarn and then cuts it by the scissors. This step is consistent with the ordinary scissor mechanism of the prior art. The main difference is that Fig. 9As shown, the hook knife 31 includes an upper hook knife 311 and a lower hook knife 312, and the hook teeth of the upper hook knife 311 and the lower hook knife 312 are arranged to face each other. The traditional hook knife 31 is a single hook knife 31, and the double hook knife 31 can ensure that the yarn can be hooked no matter which side it is on, and because the hook teeth are arranged to face each other, the hook teeth can be prevented from getting caught when pulling down.

[0058] After the moving scissor mechanism 3 moves to the thread trimming position, as Figure 6-8 And cooperate Figure 4 , 5 As shown, first the hook knife 31 rises to hook the yarn, the scissor blades 32 and the thread clamp 33 are opened (the scissor blades 32 are located below the thread clamp 33), the hook knife 31 descends to bring back the yarn, the scissor blades 32 and the thread clamp 33 are closed, the scissor blades 32 cut the thread while the thread clamp 33 clamps the thread, and finally the thread clamp 33 opens to release the thread end (the thread end is the part connected to the fabric).

[0059] like Fig.11 As shown, the mobile scissor mechanism 3 is arranged between two rollers 4 for pulling cloth. When the rollers 4 are opened, the mobile scissor mechanism 3 can move along the guide rail between the rollers 4. The opening and closing of the rollers 4 are realized by driving the gear set and the synchronous belt by the driving device, and the movement of the mobile scissor mechanism 3 is driven by another driving device to realize translation. The movement mode of the mobile scissor mechanism 3 is not the focus of the present invention and will not be described in detail here.

[0060] like Fig.12 As shown, each knitting yarn mouth 1 is arranged at a certain angle, and the ends of the knitting yarn mouths 1 intersect at a point, so the hooking yarn mouth 2 can avoid other knitting yarn mouths 1 when moving, and each knitting yarn mouth 1 or hooking yarn mouth 2 is driven by an independent motor 5.

[0061] The above are only specific embodiments of the present invention. At the same time, all words such as "upper, lower, left, right, middle" involved in the present invention are for reference only and are not absolute limitations. Any non-substantial changes made using the present invention shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A flat knitting machine wireless head knitting process, characterized in that: include: Step 10: After the fabric is woven, wait for the thread to be cut; Step 20: Use a hook yarn mouth to hook the yarn horizontally to keep the yarn inside the fabric; Step 30: The knitting yarn mouth is translated in the opposite direction relative to step 20 to move the yarn to be cut to the cutting position; Step 40: Cut the yarn; Step 50: Move the yarn mouth horizontally again to hook all the thread ends into the weaving area so that the thread ends are woven together in the loop or inside the fabric.

2. A flat knitting machine wireless head-free knitting process according to claim 1, characterized in that: The thread trimming action is achieved by a mobile scissor mechanism, which is arranged below the needle plate and enters the thread trimming position before step 30.

3. A flat knitting machine wireless head-free knitting process according to claim 2, characterized in that: The movable scissor mechanism comprises scissors and a hook knife arranged on one side of the scissors. The hook knife hooks the yarn and then cuts it by the scissors.

4. A flat knitting machine wireless head-free knitting process according to claim 3, characterized in that: The hook knife of the mobile scissors mechanism comprises an upper hook knife and a lower hook knife, and the hook teeth of the upper hook knife and the lower hook knife are arranged facing each other.

5. The wireless head-free knitting process for a flat knitting machine according to claim 1, characterized in that: A thread hooking head is arranged at the end of the thread hooking yarn mouth, one end of the thread hooking head is a pointed end for pushing away the yarn, and the other end is an open end for hooking the yarn.

6. A flat knitting machine wireless head-free knitting process according to claim 3, characterized in that: The moving scissor mechanism includes the following actions: The hook knife rises, the scissor blade and the wire clamp blade open; The hook knife descends, the scissor blade and the thread clamping blade close to cut the thread and clamp the thread at the same time; The thread clamp opens to release the thread.

7. A flat knitting machine wireless head-free knitting process according to claim 6, characterized in that: In step 40, the yarn is cut and then clamped by the clamping piece.

8. A flat knitting machine wireless head-free knitting process according to claim 7, characterized in that: Repeat steps 10-50 when changing yarn, so that the thread trimmer moves in coordination with the knitting yarn mouth.

9. A flat knitting machine wireless head-free knitting process according to claim 2, characterized in that: The movable scissor mechanism is arranged between two rollers for pulling the cloth. When the rollers are opened, the movable scissor mechanism can move along the guide rail between the rollers.

10. The non-wired head knitting process of a flat knitting machine according to claim 5, characterized in that: When the positions of the yarn mouths ...

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