A needle cylinder for a knitting machine

Abstract

The application discloses a knitting machine needle cylinder, which comprises a needle cylinder body, a plurality of horizontally arranged grooves and a plurality of vertically arranged grooves on the needle cylinder body, the horizontally arranged grooves being arranged above the vertically arranged grooves and being in communication with the vertically arranged grooves, a nozzle piece being arranged in the horizontally arranged grooves, an insertion piece being arranged in the vertically arranged grooves, the nozzle piece and the insertion piece being respectively provided with a first clamping hole and a second clamping hole in L-shaped structures, the needle cylinder body being provided with a first boss and a second boss matched with the first clamping hole and the second clamping hole, and the needle cylinder body being provided with a first pressing ring for fixing the nozzle piece, the first pressing ring being fixed on the inner wall of the needle cylinder body through a bolt, the nozzle piece being fixed on the needle cylinder body in a detachable manner, so that the knitting needle can be replaced in time when the nozzle piece is worn or hit during the process of loop weaving, the knitting needle does not need to be fixed by glue, and the fabric will not be damaged by oil needle and thin road during weaving.

Description

TECHNICAL FIELD

[0001] The application discloses a needle cylinder of a knitting machine and belongs to the technical field of knitting equipment. BACKGROUND

[0002] The knitting circular weft machine has a needle supporting element called "needle cylinder", which is installed on the fixed structure (or bottom frame) of the knitting circular weft machine and can rotate around its own center axis, and has a plurality of "channels", the needle channels are parallel to the center axis of the needle cylinder, present on the outer surface of the needle cylinder and extend around the entire needle cylinder, and each needle channel removably contains a corresponding knitting needle of the knitting machine, so that the knitting needle can be selectively moved in each channel and cooperates with the knitting head element for fabric production. The existing channel for installing the knitting needle is realized by opening a groove on the outer peripheral surface of the needle cylinder, and after the knitting needle knits the fabric for a period of time, the channel will be worn under the influence of the sliding of the knitting needle, especially the top of the needle cylinder, when the knitting needle hooks the yarn to form a loop and knits, due to the pulling force of the yarn or the knitted fabric, the knitting needle will be bent at its contact point with the needle cylinder, so that the friction with the needle cylinder will increase when the knitting needle is returned, which will cause the wear of the upper end of the channel to increase or even be hit, so that the needle cylinder needs to be repaired or replaced with a new needle cylinder, which increases the maintenance cost, and in order to avoid the knitting needle from falling off the needle cylinder, a fixed ring is arranged on the outside of the needle cylinder, the two ends of the fixed ring are connected by bolts or other fasteners, so that the fixed ring needs to be removed every time the needle cylinder is repaired, and the knitting needle needs to be removed from the needle cylinder without constraint, and then installed on the needle cylinder after the repair is completed, which greatly increases the workload of the needle cylinder repair. SUMMARY

[0003] The application aims to solve the problems in the prior art and provides a needle cylinder of a knitting machine.

[0004] The present application realizes the above-mentioned purpose through the following technical scheme, a needle cylinder of a knitting machine, comprising a needle cylinder body, a plurality of horizontal grooves and vertical grooves are arranged in an array on the needle cylinder body, the horizontal grooves are located above the vertical grooves and are arranged in communication, a mouth piece is arranged in the horizontal groove, an insert piece is arranged in the vertical groove, the mouth piece and the insert piece are respectively provided with a first clamping hole and a second clamping hole in L-shaped structure, the needle cylinder body is provided with a first boss and a second boss matched with the first clamping hole and the second clamping hole, the needle cylinder body is provided with a first pressing ring for fixing the mouth piece, the first pressing ring is fixed on the inner wall of the needle cylinder body through a bolt, the bottom of the needle cylinder body is provided with a second pressing ring, the upper and lower ends of the insert piece are respectively in abutment with the mouth piece and the second pressing ring, one side of the insert piece is embedded into the vertical groove, and the other side is located outside the vertical groove and is provided with a notch, the outer side of the needle cylinder body is provided with a fixing ring for mounting the insert piece, a plurality of adjusting assemblies are arranged on the needle cylinder body, the adjusting assemblies exert a force away from the center of the needle cylinder body on the insert piece, and the fixing ring is clamped in the notch, and knitting needles are slidingly arranged between the adjacent two insert pieces.

[0005] Preferably, the adjusting assembly is provided with a plurality of sliding blocks, connecting rods, springs and limiting nuts, the outer side of the needle cylinder body is provided with an annular groove, one end of the connecting rod is fixedly connected with the sliding block, the other end of the connecting rod passes through the needle cylinder body and is threadedly connected with the limiting nut, and the spring is sleeved on the connecting rod and abuts against the needle cylinder body and the sliding block at two ends.

[0006] Preferably, the projection of the sliding block on a horizontal plane is in a fan-shaped structure, when the sliding block abuts the insert piece against the fixing ring, the distance between the adjacent two sliding blocks is less than or equal to the distance between the adjacent two insert pieces.

[0007] Preferably, the needle cylinder body is provided with a counterbore for mounting the spring.

[0008] Preferably, the plurality of mouth pieces are divided into a plurality of groups in the same number, a connecting block is arranged between the mouth pieces in each group, and the connecting block is in an arc-shaped structure.

[0009] Preferably, one side of the first pressing ring close to the mouth piece is provided with a convex rib, and the connecting block is provided with a groove matched with the convex rib.

[0010] Preferably, the first pressing ring and the second pressing ring are both composed of a plurality of inlaid blocks with the same central angle.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] 1. By setting the first compression ring and the mouth piece, the mouth piece is embedded in the horizontal slot, and the mouth piece is fixed by the first compression ring, and at the same time, the cooperation of the convex rib and the groove can limit the mouth piece from separating from the needle cylinder body upward. The structure design can be replaced in time after the wear or impact of the mouth piece, so as to not affect the cloth loop knitting, and the cloth will not appear oil needle and thin road during weaving.

[0013] 2. By setting the insert, the second compression ring and the adjusting assembly, the upper and lower ends of the insert are respectively in contact with the mouth piece and the compression ring, and the insert is slidingly installed in the vertical slot. The depth of the insert embedded in the vertical slot can be controlled by the adjusting assembly, and the spring exerts a spring force on the sliding block, so that the insert abuts against the fixing ring, the fixing ring is clamped in the notch, and the insert is limited in the vertical slot. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the structure of the needle cylinder of the knitting machine of the application;

[0015] Figure 2 It is a schematic view of the local structure of the mouth piece, the first compression ring and the insert in the application;

[0016] Figure 3 It is a schematic view of the local structure of the needle cylinder body and the adjusting assembly in the application;

[0017] Figure 4 It is a schematic view of the local structure of the insert, the knitting needle, the fixing ring and the needle cylinder body in the application;

[0018] Figure 5 It is a schematic view of the structure of the adjusting assembly in the application;

[0019] Figure 6 It is a schematic view of the structure of the mouth piece and the connecting block in the application;

[0020] Figure 7 It is a schematic view of the structure of the insert in the application;

[0021] Figure 8 It is a schematic view of the structure of the needle cylinder body in the application;

[0022] The reference signs: 1, fixing ring; 2, needle cylinder body; 3, first compression ring; 4, adjusting assembly; 5, mouth piece; 6, insert; 7, vertical slot; 8, limit nut; 9, horizontal slot; 10, knitting needle; 11, sliding block; 12, second compression ring; 13, spring; 14, connecting rod; 15, convex rib; 16, groove; 17, connecting block; 18, notch; 19, counterbore; 20, annular groove. DETAILED DESCRIPTION

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1-8 As shown, a knitting machine cylinder includes a cylinder body 2. The cylinder body 2 has multiple arrayed horizontal grooves 9 and vertical grooves 7. The horizontal grooves 9 are located above the vertical grooves 7 and are connected to each other. A nozzle piece 5 is installed in the horizontal groove 9, and an insert piece 6 is installed in the vertical groove 7. The nozzle piece 5 and the insert piece 6 respectively have an L-shaped first latch and a second latch. The cylinder body 2 has a first boss and a second boss that cooperate with the first latch and the second latch. A first pressure ring 3 is provided on the cylinder body 2 for fixing the nozzle piece 5. The first pressure ring 3 is fixed by bolts. The needle is fixed on the inner wall of the syringe body 2. A second pressure ring 12 is provided at the bottom of the syringe body 2. The upper and lower ends of the insert 6 abut against the nozzle plate 5 and the second pressure ring 12 respectively. One side of the insert 6 is embedded in the vertical groove 7, and the other side is located outside the vertical groove 7 and is provided with a notch 18. A fixing ring 1 for installing the insert 6 is provided on the outer side of the syringe body 2. Multiple adjustment components 4 are provided on the syringe body 2. The adjustment components 4 apply a force away from the center of the syringe body 2 to the insert 6 and make the fixing ring 1 lock in the notch 18. A knitting needle 10 is slidably installed between two adjacent inserts 6.

[0025] The adjusting assembly 4 is provided with a plurality of adjusting assemblies 4, and the adjusting assembly 4 comprises a sliding block 11, a connecting rod 14, a spring 13 and a limiting nut 8. The outer side of the needle cylinder body 2 is provided with an annular groove 20. One end of the connecting rod 14 is fixedly connected with the sliding block 11, and the other end penetrates through the needle cylinder body 2 and is threadedly connected with the limiting nut 8. The spring 13 is sleeved on the connecting rod 14, and the two ends of the spring 13 abut against the needle cylinder body 2 and the sliding block 11 respectively. When the sliding block 11 is installed in the annular groove 20, the upper and lower ends of the sliding block 11 abut against the needle cylinder body 2, so that the sliding block 11 can only slide in the annular groove 20 towards the center of the needle cylinder body 2. When the limiting nut 8 is rotated, the connecting rod 14 and the sliding block 11 will not rotate, so that the position of the limiting nut 8 on the connecting rod 14 changes. When the distance between the limiting nut 8 and the sliding block 11 increases, the spring 13 pushes the sliding block 11, and the insert piece 6 slides towards the direction of separating from the vertical groove 7 to abut against the fixed ring 1. When the distance between the limiting nut 8 and the sliding block 11 decreases, the sliding block 11 moves towards the center of the needle cylinder body 2 and the spring 13 is further compressed. Thus, the insert piece 6 can have a certain moving space in the depth direction of the vertical groove 7. In the case that the other sliding blocks 11 remain in the original state, the fixed ring 1 can still remain fixed. Thus, the insert piece 6 in the local position can be replaced without disassembling the fixed ring 1, and it is not necessary to disassemble all the insert pieces 6 and the needles 10, so that the steps of repairing the needle cylinder body 2 are simplified and the maintenance cost is reduced.

[0026] The projection of the sliding block 11 on the horizontal plane is a fan-shaped structure. When the sliding block 11 abuts the insert piece 6 against the fixed ring 1, the distance between the adjacent two sliding blocks 11 is less than or equal to the distance between the adjacent two insert pieces 6. In this way, when the spring 13 exerts a force on the sliding block 11, all the sliding blocks 11 can exert a force on all the insert pieces 6 to abut against the fixed ring 1, so that all the insert pieces 6 will not move in the process of weaving by the needles 10.

[0027] The needle cylinder body 2 is provided with a counterbore 19 for installing the spring 13. When the position of the limiting nut 8 on the connecting rod 14 is adjusted, the length of the spring 13 changes. When one end of the sliding block 11 abuts against the needle cylinder body 2, the spring 13 is in the shortest state. Thus, the minimum compression length of the spring 13 can be controlled, so as to ensure the service life of the spring 13.

[0028] The plurality of mouth pieces 5 are divided into a plurality of groups in the same number. The mouth pieces 5 in each group are provided with a connecting block 17. The connecting block 17 is in an arc-shaped structure. The mouth pieces 5 in each group form an integral whole by one connecting block 17, so as to ensure the strength and stability of each mouth piece 5 and to simplify the process of installation and disassembly.

[0029] The first pressing ring 3 is provided with a convex rib 15 on the side close to the mouthpiece 5, and the connecting block 17 is provided with a groove 16 matched with the convex rib 15. When the mouthpiece 5 is inserted into the horizontal slot 9, the first pressing ring 3 is then fixed on the needle cylinder body 2 by bolts. The first pressing ring 3 exerts lateral pressure on the mouthpiece 5, so that the convex rib 15 cannot be matched with the groove 16 when the mouthpiece 5 is pulled up from the needle cylinder body 2. Thus, it can be ensured that the mouthpiece 5 will not fall off during the knitting process of the knitting needle 10.

[0030] The first pressing ring 3 and the second pressing ring 12 are both composed of a plurality of mosaic blocks with the same central angle. The first pressing ring 3 and the second pressing ring 12 are designed in a split assembly structure, so that the insert piece 6 and the mouthpiece 5 can be assembled or disassembled in regions, thereby simplifying the replacement operation.

[0031] Working principle: When assembling the needle cylinder body 2, first, the adjusting assembly 4 is installed on the needle cylinder body 2, and the position of the limiting nut 8 on the connecting rod 14 is adjusted, so that the spring 13 is compressed to the shortest. Then, the insert piece 6 is inserted into the vertical slot 7, and the height of the insert piece 6 protruding from the vertical slot 7 is at the lowest state. At this time, the maximum diameter of the circle formed by the notches 18 on all the insert pieces 6 is smaller than the inner diameter of the fixed ring 1. Then, the second pressing ring 12 is fixed on the needle cylinder body 2, so that the second pressing ring 12 supports the lower end of the insert piece 6. Then, the mouthpiece 5 is inserted into the horizontal slot 9, and the bottom of the mouthpiece 5 abuts against the upper end of the insert piece 6, so that the insert piece 6 can only slide along the depth direction of the vertical slot 7. Then, the first pressing ring 3 is fixed on the needle cylinder body 2, so that the first pressing ring 3 exerts lateral pressure on the connecting block 17. In this way, the mouthpiece 5 cannot be pulled up from the needle cylinder body 2. Then, the knitting needle 10 is installed between two adjacent insert pieces 6. Finally, the fixed ring 1 is sleeved on the outside of all the insert pieces 6, and the position of the fixed ring 1 is aligned with the position of the notches 18 on the insert pieces 6. Then, the limiting nut 8 is rotated to increase the distance between the limiting nut 8 and the sliding block 11. The spring 13 exerts a pushing force on the sliding block 11, so that the sliding block 11 exerts a pushing force on the insert piece 6, and the insert piece 6 is tightly abutted against the fixed ring 1. In this way, the fixed ring 1 can be clamped in the notches 18 and cannot move up and down. Thus, the assembly of the needle cylinder body 2 is completed.

[0032] When the mouth piece 5 at a position is worn or hit, the corresponding inlay block in the first pressing ring 3 can be disassembled, which reduces the maintenance cost, and the mouth piece 5 is installed in a mechanical pressing manner without glue bonding and fixing, which can avoid the oil needle during weaving and the thin road condition caused by the weaving gap between the adjacent two yarns in the fabric organization, and when the insert piece 6 is worn, the limiting nut 8 at the corresponding position is rotated to slide away from the insert piece 6, so that the insert piece 6 can slide along the vertical groove 7 in the depth direction, and then the inlay block in the second pressing ring 12 is disassembled, so that the insert piece 6 can be taken out, at this time, since the insert pieces 6 at other positions still abut against the fixed ring 1, the removal of the insert piece 6 at the local position does not affect the up-down movement of the fixed ring 1, so that when the needle cylinder body 2 is locally repaired, all the insert pieces 6 and the knitting needles 10 do not need to be disassembled, thereby greatly simplifying the operation of repair.

[0033] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present examples are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the specification as such. All the patents and scientific literature referred to in this specification are specifically and individually incorporated by reference in their entirety.

[0034] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A needle cylinder for a knitting machine, comprising a needle cylinder body (2), characterized in that, The needle cylinder body (2) is provided with a plurality of horizontally arranged grooves (9) and vertical grooves (7), the horizontally arranged grooves (9) are arranged above the vertical grooves (7) and are in communication, the horizontally arranged grooves (9) are provided with a nozzle piece (5), the vertical grooves (7) are provided with an insertion piece (6), the nozzle piece (5) and the insertion piece (6) are respectively provided with a first clamping hole and a second clamping hole in L-shaped structure, the needle cylinder body (2) is provided with a first boss and a second boss matched with the first clamping hole and the second clamping hole, the needle cylinder body (2) is provided with a first pressing ring (3) for fixing the nozzle piece (5), the first pressing ring (3) is fixed on the inner wall of the needle cylinder body (2) through a bolt, the bottom of the needle cylinder body (2) is provided with a second pressing ring (12), the upper and lower ends of the insertion piece (6) are respectively in contact with the nozzle piece (5) and the second pressing ring (12), one side of the insertion piece (6) is embedded into the vertical groove (7), and the other side is located outside the vertical groove (7) and is provided with a notch (18), the outer side of the needle cylinder body (2) is provided with a fixing ring (1) for mounting the insertion piece (6), the needle cylinder body (2) is provided with a plurality of adjusting assemblies (4), the adjusting assemblies (4) exert a force on the insertion piece (6) away from the center of the needle cylinder body (2) and make the fixing ring (1) clamped in the notch (18), and adjacent two insertion pieces (6) are slidably provided with a knitting needle (10).

2. A needle cylinder for a knitting machine according to claim 1, characterized in that, The adjusting assembly (4) is provided with a plurality of adjusting assemblies (4), and the adjusting assembly (4) comprises a sliding block (11), a connecting rod (14), a spring (13) and a limiting nut (8), the outer side of the needle cylinder body (2) is provided with an annular groove (20), one end of the connecting rod (14) is fixedly connected with the sliding block (11), the other end penetrates through the needle cylinder body (2) and is threadedly connected with the limiting nut (8), the spring (13) is sleeved on the connecting rod (14), and the two ends of the spring (13) are respectively in contact with the needle cylinder body (2) and the sliding block (11).

3. A needle cylinder for a knitting machine according to claim 2, characterised in that, The projection of the sliding block (11) on the horizontal plane is in fan-shaped structure, when the sliding block (11) abuts the insertion piece (6) against the fixing ring (1), the distance between adjacent two sliding blocks (11) is less than or equal to the distance between adjacent two insertion pieces (6).

4. A needle cylinder for a knitting machine according to claim 2, wherein The needle cylinder body (2) is provided with a counterbore (19) for mounting the spring (13).

5. A needle cylinder for a knitting machine according to claim 1, characterized in that, A plurality of nozzle pieces (5) are divided into a plurality of groups in the same number, and a connecting block (17) is arranged between each group of nozzle pieces (5), and the connecting block (17) is in arc-shaped structure.

6. A needle cylinder for a knitting machine according to claim 5, characterised in that, The side of the first pressing ring (3) close to the nozzle piece (5) is provided with a convex rib (15), and the connecting block (17) is provided with a groove (16) matched with the convex rib (15).

7. A needle cylinder for a knitting machine according to claim 1, characterized in that, The first pressing ring (3) and the second pressing ring (12) are both composed of a plurality of inlaid blocks with the same central angle.

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