Settling swing arm device of two-needle bar warp knitting machine

Abstract

The utility model relates to the technical field of warp knitting machines, in particular to a settling swing arm device of a two-needle bar warp knitting machine, which comprises a linkage shaft and a fixed shaft which are positioned on a machine tool, a settling rocker arm is fixedly arranged on the linkage shaft, one end of a settling rod is hinged to the other end of the settling rocker arm, and a settling swing arm is hinged to the other end of the settling rod. The middle of the settling swing arm is hinged to the fixing shaft through a hinge hole, two settling heads are arranged on the settling swing arm and located at the left end and the right end of the settling swing arm respectively, and an avoiding opening for avoiding a needle bed is formed in the position, between the two settling heads, of the settling swing arm. Compared with the prior art, the settling swing arm device has the advantages that parts needed by the settling swing arm device are reduced, the occupied space and the manufacturing cost of the swing arm device are reduced, meanwhile, the fault probability is reduced, the structure is simpler, control is more concentrated, the overall reliability of the two-needle bar warp knitting machine can be improved, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of warp knitting machine, concretely relates to a sinker swing arm device of double needle bed warp knitting machine. BACKGROUND

[0002] A warp knitting machine is a machine used for producing fabric by interlacing yarns. It usually consists of a series of needles and shuttles that move in a continuous cycle to complete the knitting process. This machine can be used to produce various types of fabric, including cotton, wool, silk, etc. The warp knitting machine usually operates at high speed, which can efficiently produce a large amount of fabric products. In modern textile industry, the warp knitting machine is a very important production equipment, which greatly improves the efficiency and quality of fabric production.

[0003] The sinker swing arm device in the warp knitting machine is part of the core motion mechanism of the warp knitting machine, and its main function is to drive the sinker to move in both directions. Through linkage with the cam connecting rod mechanism, the sinker is controlled to advance forward to assist loop formation (knitting yarn), and at the same time, it is reset in reverse to maintain the continuity of action. This bidirectional movement mechanism can efficiently separate the yarn and form loops, which is a key component of the loop formation system of the warp knitting machine.

[0004] The sinker swing arm device in the current double needle bed warp knitting machine has a double swing arm structure, which requires two independent guide bar swing arms (front guide bar swing arm and rear guide bar swing arm) to be set on the front and rear sides of the needle bed mechanism, respectively fixed on the front and rear swing shafts, and controlled by the rotation of the cam to drive the sinker to advance and withdraw. Although this design allows the two swing arms to move independently without interfering with each other, the double swing arm mechanism means that more parts are needed (such as two swing shafts, two sets of cam and connecting rod mechanisms, etc.), which increases the space occupied by the swing arm device and the manufacturing cost, and also increases the probability of failure. Therefore, there is an urgent need for a sinker swing arm device with a more compact structure and more centralized control to improve the overall reliability of the double needle bed warp knitting machine and reduce the manufacturing cost. SUMMARY

[0005] The utility model aims at the defects and deficiencies of prior art, provides a sinker swing arm device of double needle bed warp knitting machine with compact structure and low manufacturing cost.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme is: a double needle bed warp knitting machine's subsidence swing arm device, including the linkage shaft on the machine tool, fixed shaft, the linkage shaft is fixedly arranged with the subsidence rocker, and one end of the subsidence rocker is fixedly arranged on the linkage shaft, and the other end of the subsidence rocker is provided with the subsidence rod, and one end of the subsidence rod is hingedly arranged on the other end of the subsidence rocker, and the other end of the subsidence rod is hingedly arranged with the subsidence swing arm, and the middle part of the subsidence swing arm is hingedly connected with the fixed shaft through the hinged hole, and two subsidence heads for installing subsidence pieces are arranged on the subsidence swing arm, and the left end of the subsidence swing arm is hingedly connected with the other end of the subsidence rod, and two subsidence heads are respectively located at the left and right ends of the subsidence swing arm, and the subsidence swing arm is formed with the needle bed avoiding opening between two subsidence heads.

[0007] Further improvement is: still include the rotation main shaft on the machine tool, and the rotation main shaft is fixedly arranged with the subsidence cam, and one side of the linkage shaft is provided with the cam rocker and is arranged with the subsidence cam, and one end of the cam rocker is fixedly connected with the linkage shaft, and two cooperation rollers are arranged between the other end of the cam rocker and the subsidence cam, and two cooperation rollers are respectively connected with the inner and outer diameters of the subsidence cam, and two cooperation rollers are used to reciprocate up and down along with the shape of the subsidence cam when the subsidence cam rotates, to drive the linkage shaft to reciprocate up and down.

[0008] Further improvement is: two the subsidence head is provided with first subsidence piece and second subsidence piece respectively, and first subsidence piece and second subsidence piece are respectively installed on two subsidence heads through bolts.

[0009] Further improvement is: one of the subsidence head and first subsidence piece is provided with a fine adjustment mechanism.

[0010] Further improvement is: the fine adjustment mechanism includes: one of the subsidence head is provided with a plane, and the first subsidence piece is located on the plane, two threaded holes are formed in the plane, two adjusting waist holes are formed in the first subsidence piece, two adjusting waist holes are respectively corresponding with the positions of two threaded holes, two connecting bolts are arranged between the first subsidence piece and the plane, the screw rod portions of two connecting bolts are respectively screwed into two threaded holes, and the screw rod portions of two connecting bolts are respectively gap matched with two adjusting waist holes.

[0011] Further improvement is: the connecting bolt and the first subsidence piece are provided with a connecting gasket, and the connecting gasket is located between the head of the connecting bolt and the first subsidence piece.

[0012] The beneficial effects of the present application are as follows: after assembly, the needle bed is located in the avoiding opening of the sinking swing arm, and the sinking pieces are respectively installed on the two sinking heads at the left and right ends of the sinking swing arm; when it is necessary to drive the sinking pieces on both sides of the needle bed to separate the yarn on the needle bed to form a loop, only the rotation of the linkage shaft drives the other end of the sinking swing arm to swing up and down; when the sinking swing arm swings up and down, the sinking rod drives the sinking swing arm to swing left and right around the fixed shaft; the reciprocating forward and reverse rotation of the linkage shaft can realize the reciprocating swing of the sinking swing arm, thereby driving the two sinking heads to reciprocate and advance and retreat; the effect of the traditional double-swing-arm structure can be realized under the structure of one sinking swing arm; in the present application, only one sinking swing arm and sinking rod need to be arranged on one side of the needle bed to realize the driving; compared with the traditional double-swing-arm structure, the number of parts used by the sinking swing arm device is reduced, the occupied space and manufacturing cost of the swing arm device are reduced, the probability of failure is also reduced, the structure is more simple, the control is more concentrated, and the overall reliability of the double-needle-bed warp knitting machine can be improved and the manufacturing cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative labor.

[0014] Figure 1 is a side view of the sinking swing arm, the sinking rod, and the sinking swing arm of the present application;

[0015] Figure 2 is a side view of the linkage shaft, the fixed shaft, the sinking rod, the sinking swing arm, the rotating main shaft, the sinking cam, and the cam swing arm in the present application;

[0016] Figure 3 is an example diagram of the linkage shaft, the sinking rod, the rotating main shaft, the sinking cam, the cam swing arm, and the cooperating roller in the present application;

[0017] Figure 4 is a structural schematic view of the sinking swing arm in the present application;

[0018] Figure 5 is a side view of the sinking swing arm in the present application;

[0019] Figure 6 is a structural schematic view of the second sinking piece and the adjusting waist hole in the present application.

[0020] Explanation of reference signs: linkage shaft 1, fixed shaft 2, sink rocker 3, sink lever 4, sink swing arm 5, sink head 6, avoidance opening 7, rotating main shaft 8, sink cam 9, cam rocker 10, matching roller 11, first sinker 12, second sinker 13, plane 14, threaded opening 15, adjusting waist hole 16, connecting bolt 17, connecting gasket 18, hinged hole 19. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and specific embodiments.

[0022] Reference Figures 1 to 6 As shown in the drawings, the technical scheme adopted in the specific embodiment is: a sink swing arm 5 device of a double needle bed warp knitting machine, comprising a linkage shaft 1 and a fixed shaft 2 located on the machine tool, the linkage shaft 1 is fixedly provided with a sink rocker 3, one end of the sink rocker 3 is fixedly provided on the linkage shaft 1, the other end of the sink rocker 3 is provided with a sink lever 4, one end of the sink lever 4 is hingedly provided at the other end of the sink rocker 3, the other end of the sink lever 4 is hingedly provided with a sink swing arm 5, the sink swing arm 5 is hingedly connected with the fixed shaft 2 through a hinged hole 19 in the middle part, two sink heads 6 for installing sinkers are arranged on the sink swing arm 5, the left end of the sink swing arm 5 is hingedly connected with the other end of the sink lever 4, the two sink heads 6 are respectively located at the left and right ends of the sink swing arm 5, and the sink swing arm 5 is formed with an avoidance opening 7 for avoiding the needle bed between the two sink heads 6. A sliding bearing is embedded in the hinged hole 19 or a rolling bearing is installed, and the sink swing arm 5 is hingedly connected with the fixed shaft 2 through the bearing. The contour of the avoidance opening 7 is adapted to the shape of the needle bed, and the size ensures that the sink swing arm 5 does not contact or interfere with the needle bed in the whole left and right swinging process.

[0023] The linkage shaft 1 is rotatably arranged on the machine tool, the fixed shaft 2 is fixedly installed on the machine tool, one end of the sink rocker 3 is an open type fixed ring structure, and is embedded by a bolt or a screw to realize fixation by tightly holding the linkage shaft 1 through the opening. One end of the sink lever 4 is hingedly connected with the sink rocker 3 through a traditional hinged structure, and the sink rocker 3, the sink lever 4 and the hinged arrangement thereof are all prior art, which will not be described here. The double needle bed warp knitting machine is a known technology, and its specific structure can be referred to the double needle bed warp knitting machine with patent number CN201921170046.2 and the warp knitting machine with a multi-hole type cam swing arm with patent number CN201320193165.6. As shown in the drawings, Figure 5 As shown in the drawings, the sink swing arm 5 is a non-symmetrical structure similar to a U-shaped shape.

[0024] Also include the machine tool on the rotating spindle 8, the rotating spindle 8 is fixedly provided with the settlement cam 9, the linkage shaft 1 is provided with the cam rocker arm 10 on one side of the settlement rocker arm 3, one end of the cam rocker arm 10 is fixedly connected with the linkage shaft 1, the other end of the cam rocker arm 10 is provided with two matching rollers 11 between the settlement cam 9, the two matching rollers 11 are respectively connected with the inner and outer diameter of the settlement cam 9, the two matching rollers 11 are used to reciprocatingly swing the cam rocker arm 10 following the shape of the settlement cam 9 when the settlement cam 9 rotates, to drive the linkage shaft 1 to reciprocatingly rotate. The shape of the settlement cam 9 is irregular, which acts on the continuous rotation of the rotating spindle 8 in one direction, utilizes the shape of the settlement cam 9 and the connection of the matching roller 11, and drives the linkage shaft 1 to realize the reciprocating short-distance rotation in the positive and negative directions through the cam rocker arm 10, so as to realize the reciprocating swing of the two settlement heads 6 of the settlement swing arm 5. The shape of the settlement cam 9 is shown in Figure 2 The reciprocating drive mechanism composed of the settlement cam 9, the matching roller 11 and the cam rocker arm 10 has been widely used in the market, and the detailed structure can refer to the warp knitting machine with the multi-hole type cam swing arm disclosed in the patent No. CN201320193165.6, which will not be described here.

[0025] The two settlement heads 6 are respectively provided with the first settlement piece 12 and the second settlement piece 13, and the first settlement piece 12 and the second settlement piece 13 are respectively installed on the two settlement heads 6 through bolts.

[0026] One of the settlement heads 6 is provided with a fine adjustment mechanism between the first settlement piece 12.

[0027] The fine adjustment mechanism comprises: one of the settlement heads 6 is provided with a plane 14, the first settlement piece 12 is located on the plane 14, two threaded holes 15 are formed in the plane 14, two adjusting waist holes 16 are formed in the first settlement piece 12, the two adjusting waist holes 16 correspond to the positions of the two threaded holes 15 respectively, two connecting bolts 17 are arranged between the first settlement piece 12 and the plane 14, the threaded portions of the two connecting bolts 17 are respectively screwed into the two threaded holes 15, and the threaded portions of the two connecting bolts 17 are respectively in clearance fit with the two adjusting waist holes 16. During installation, the two connecting bolts are respectively inserted from the positions of the two adjusting waist holes and are screwed into the two threaded holes until the heads of the two connecting bolts press the first settlement piece tightly on the plane, so as to realize the fixed connection of the first settlement piece; when it is necessary to slightly adjust the transverse position of the first settlement piece, the two connecting bolts are reversely screwed so that the heads of the two connecting bolts no longer press the first settlement piece, and then the first settlement piece is driven to move transversely according to the required distance, and after moving, the connecting bolts are again screwed in the positive direction to press the first settlement piece tightly on the plane. The transverse movement direction is shown in Figure 5 , which is the direction in which the first settlement piece 12 approaches or moves away from the second settlement piece 13.

[0028] A connecting gasket 18 is arranged between the connecting bolt 17 and the first sinker 12, and is located between the head of the connecting bolt 17 and the first sinker 12. The inner diameter of the connecting gasket 18 is greater than the outer diameter of the connecting bolt 17, and is less than the outer diameter of the head of the connecting bolt 17, and the outer diameter of the connecting gasket 18 is greater than the width of the adjusting waist hole 16.

[0029] The working principle of the utility model is: after assembly, the needle bed is located in the avoiding opening 7 of the sinker swing arm 5, and the sinker is respectively installed on the two sinker heads 6 at the left and right ends of the sinker swing arm 5, when it is needed to drive the sinkers on both sides of the needle bed to separate the yarn on the needle bed to form a loop, only the other end of the sinker swing arm 3 is swung up and down through the rotation of the linkage shaft 1, when the sinker swing arm 3 swings up and down, the sinker rod 4 drives the sinker swing arm 3 to swing left and right around the fixed shaft 2, the sinker swing arm 3 is swung left and right reciprocatingly through the control of the reciprocating rotation of the linkage shaft 1, thereby driving the two sinker heads 6 to reciprocatingly advance and withdraw, the effect of the traditional double swing arm structure can be realized under the structure of one sinker swing arm 3, and only one sinker swing arm 3 and sinker rod 4 need to be arranged on one side of the needle bed in the application, the overall reliability of the double needle bed warp knitting machine can be improved and the manufacturing cost can be reduced.

[0030] The utility model protects the structure of the product, the model of each element is not the content protected by the utility model, is the known technology, and the elements on the market that can realize the above-mentioned functions of the utility model can be selected and applied as a sinker swing arm device of a double needle bed warp knitting machine. Therefore, the model and other parameters of the element are not described in detail in the utility model. The contribution of the utility model lies in the scientific combination of each element.

[0031] The basic principle and main features of the utility model and its advantages are shown and described above, and those skilled in the art should understand that the utility model is not limited by the above-mentioned examples, the above-mentioned examples and descriptions are only to illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents. The utility model is not described in detail, and is the known technology of those skilled in the art.

Claims

1. A sinker swinging arm device of a double needle bed warp knitting machine, comprising a linkage shaft and a fixed shaft on the machine, a sinker swinging arm is fixedly arranged on the linkage shaft, one end of the sinker swinging arm is fixedly arranged on the linkage shaft, the other end of the sinker swinging arm is provided with a sinker rod, one end of the sinker rod is hingedly arranged on the other end of the sinker swinging arm, characterized in that: The other end of the sinking rod is hingedly provided with a sinking swing arm, the middle part of the sinking swing arm is hingedly connected with a fixed shaft through a hinge hole, two sinking heads for installing sinking pieces are arranged on the sinking swing arm, the left end of the sinking swing arm is hingedly connected with the other end of the sinking rod, the two sinking heads are respectively located at the left and right ends of the sinking swing arm, and an avoiding opening for avoiding a needle bed is formed between the two sinking heads on the sinking swing arm.

2. A sinker device for a double needle bed warp knitting machine according to claim 1, characterized in that: A rotating main shaft is further arranged on the machine tool, and a sinking cam is fixedly arranged on the rotating main shaft; a cam swing arm is arranged on one side of the sinking swing arm on the linkage shaft, one end of the cam swing arm is fixedly connected with the linkage shaft, and two cooperating rollers are arranged between the other end of the cam swing arm and the sinking cam; the two cooperating rollers are respectively connected with the inner and outer diameters of the sinking cam, and the two cooperating rollers are used for following the shape of the sinking cam to drive the cam swing arm to reciprocatingly swing up and down when the sinking cam rotates, so as to drive the linkage shaft to reciprocatingly rotate up and down.

3. A sinker device for a double needle bed warp knitting machine according to claim 1, characterized in that: First sinking pieces and second sinking pieces are respectively arranged on the two sinking heads and are installed on the two sinking heads through bolts.

4. A sinker device for a double needle bed warp knitting machine according to claim 3, characterized in that: A fine adjustment mechanism is arranged between one of the sinking heads and the first sinking piece.

5. A sinker device for a double needle bed warp knitting machine according to claim 4, characterized in that: The fine adjustment mechanism comprises a plane arranged on one of the sinking heads, the first sinking piece is located on the plane, two threaded holes are arranged on the plane, two adjusting waist holes are arranged on the first sinking piece and correspond to the positions of the two threaded holes, two connecting bolts are arranged between the first sinking piece and the plane, the screw rods of the two connecting bolts are respectively screwed with the two threaded holes, and the screw rods of the two connecting bolts are respectively gap-fitted with the two adjusting waist holes.

6. A sinker device for a double needle bed warp knitting machine according to claim 5, characterized in that: A connecting gasket is arranged between the connecting bolts and the first sinking piece, and the connecting gasket is located between the head of the connecting bolt and the first sinking piece.

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