TW202012717A - Needle bed for circular knitting machine, and circular knitting machine including same needle bed - Google Patents

Abstract

To provide a needle bed for a circular knitting machine in which, without greatly changing the structures of a knitting tool and an insert piece for forming a groove for slidably storing the knitting tool, the contact area between the knitting tool and the insert piece is reduced. A needle bed which is mountable to the circular knitting machine is configured to slidably store a knitting tool in a groove of which both side surfaces are formed by opposed plate surfaces of adjacent insert pieces 50 having a rectangular plate shape, wherein each insert piece 50 has a plurality of dimples 53 formed in a short-side direction X and a long-side direction Y on the plate surfaces.

Description

Needle bed of circular knitting machine and circular knitting machine with the same

The present invention relates to a needle bed accommodating knitting tools and a circular knitting machine that rotates the needle bed to knit a tubular knitted fabric.

In the past, there has been known a circular knitting machine that rotates a cylinder to knit a tubular knitted fabric. The cylinder freely slides and stores a plurality of needles in a needle groove. Among them, a single-sided circular knitting machine is mostly used. The rotating needle cylinder has a cylinder needle and sinker; and the double-sided knitting circular knitting machine has needles on both the rotating needle cylinder and the dial.

The single-sided circular knitting machine is equipped with a cylindrical needle cylinder, and the sinker plate is arranged on the upper portion of the needle cylinder, and the two rotate simultaneously. The cylinder needle is inserted into a needle groove arranged vertically outside the cylinder, and the cylinder needle rotates along with the drive of the circular knitting machine, so that the cylinder needle vertically moves up and down along a cam race. On the other hand, the sinker formed by the auxiliary coil is inserted into the sinker groove arranged radially on the top surface of the sinker tray, and the sinker tray rotates along with the drive of the circular knitting machine to make the sinker follow the triangular needle Dao level for back and forth movement. The cylinder needle and the sinker are orthogonal and opposed to each other, and the mutual motion of the two forms the loop of the knitted fabric.

In addition, a double-face circular knitting machine includes a disc-shaped dial and a cylindrical cylinder. The dial is arranged on the upper portion of the cylinder, and the two rotate in synchronization. The cylinder needle is inserted into a needle groove vertically arranged on the outer circumference of the cylinder, and the cylinder needle rotates along with the driving of the circular knitting machine, so that the cylinder needle moves up and down along the triangular needle path. On the other hand, the dial needle is inserted into a needle groove radially arranged on the top surface of the dial, and the dial needle rotates along with the drive of the circular knitting machine, so that the dial needle moves horizontally back and forth along the triangular needle path. The cylinder needle and the dial needle are orthogonal and opposed to each other, and the mutual motion of the two forms the stitch of the knitted fabric.

Generally speaking, a needle bed refers to an article that contains the above-mentioned cylinder needles, sinkers, disk needles, and is guided by a cam or a needle selector to move when the circular knitting machine is in operation Knitting tools, such as the jack of the needle selector. In single-sided knitting circular knitting machines, there are needle cylinders for containing cylinder needles, sinkers and jacquard sheets, and needle beds such as sinker discs. In double-sided knitting circular knitting machines, cylinder needles and jacquard sheets are provided. Needle beds such as needle cylinders to be housed and needle disks to house needles and jacquard discs.

The needle bed is manufactured by the following two methods: processing the base material and providing a groove formed by two side surfaces and a bottom surface for movably receiving knitting tools such as sinkers; and providing an insert groove, and An insert is inserted into the groove, and an adhesive is applied to the joint or inserted into the insert. A needle bed with inserts accommodates knitting tools such as needles, jacquard sheets, etc. in a groove formed with adjacent inserts as two sides and a base material as a bottom surface.

During operation of the circular knitting machine, for example, in the cylinder, the cylinder needle slides between the inserts, so friction force is generated between the two, and the deterioration due to friction sometimes shortens the durability period of the two. This friction must be reduced. In addition, for example, since the sinker as a knitting tool also slides between the side surfaces of the groove provided on the needle bed in the sinker disc, the friction between the two must also be reduced.

Conventionally, in order to reduce the frictional force by reducing the contact area between the insert and the knitting tool, for example, Japanese Shikai Sho No. 48-089948, which makes the cross-sectional shape of the insert into a wavy shape, and the long side of the insert In the direction of a row of embossing, a large concave shape is formed or a large through hole is formed. In addition, there is known US Patent No. US1869416 to punch out the above-mentioned wave-shaped and through-holes of an insert by a die.

However, the conventional board shape of the insert greatly changes the structure of the insert, which takes time and cost in processing. In addition, in a circular knitting machine that requires fine precision, it is difficult to set all the contact points of the insert and the knitting tool on the same plane for the processing of bending the insert or knitting tool into a wavy shape or making large holes and recesses. The dimensional accuracy of the processing is reduced, which has a bad influence on the knitting, and the stress applied when the knitting tool moves up and down is uneven, and the deterioration of a part of the knitting tool is advanced.

In addition, although the lubricating oil acting between the knitting tool and the insert has a certain effect of remaining in the above-mentioned wave shape, etc., in order to reduce the contact area, the wave shape, etc. are provided in a larger size, wave shape, etc. There is a large area exposed to the knitting tool without overlapping, and the lubricating oil flows out from the wave shape or the like to the outside, and a sufficient reduction effect cannot be exerted. As a result, the processing for reducing conventional friction force may not be suitable in terms of time and cost in processing.

In addition, in recent years, the demand for high-speed operation of circular knitting machines has increased. Correspondingly, the power consumption for the operation of circular knitting machines has increased, and the frictional force of knitting tools has increased. Correspondingly, the power for driving has increased. The cost also increases, by which the friction must be reduced.

The object of the present invention is to solve the above problem and provide a needle bed of a circular knitting machine, which does not significantly change the structure of the knitting tool or the insert itself, thereby reducing the contact area between the sliding knitting tool and the insert, and reducing friction , Where the insert is formed with a groove that accommodates the knitting tool in a slidable manner.

In order to achieve the above object, the needle bed of the circular knitting machine of the present invention can be installed in a circular knitting machine. The needle bed slidably accommodates knitting tools in a groove, which is formed by adjacent rectangular plates. The facing plate surfaces of the insert are two side surfaces, and the insert has a plurality of recesses in the short side direction and the long side direction of the plate surface.

According to this configuration, since a plurality of recesses are provided in the short side direction and the long side direction of the insert, the structure itself of the insert is not significantly changed in a manner such as forming a wave shape or the like, thereby reducing processing The time and cost without affecting the accuracy of the processing size. In addition, by providing a plurality of smaller recesses, the contact area between the insert and the knitting tool can be reduced to effectively reduce friction, and furthermore, the discharge of lubricating oil to the outside can also be suppressed.

In the present invention, it is preferable that the insert is divided into a flat area without recesses and a recessed area having recesses in the short-side direction, and the size of the recess in the short-side direction is 1 of the short-side size of the insert /4 or less. Use the bonding area as the base material for about 1/2 of the short-side dimension of the insert, and form the side of the needle groove with the remaining about 1/2. In addition, there are many cases where the knitting tool is in the short-side dimension. It is more than 1/2 of the short-side dimension of the insert, so as long as it is tied to a recess of 1/4 or less of the short-side dimension of the insert, the recess and the knitting tool can overlap or overlap in the short-side direction The part becomes more.

In addition, in the present invention, it is preferable that the size of the concave portion in the short-side direction is smaller than the size of the knitting tool in the short-side direction. In this case, the concave portion and the knitting tool can be overlapped in the short side direction, so that the overlapped portion becomes more. Furthermore, by providing a plurality of smaller concave portions, the contact area between the insert and the knitting tool can be reduced more effectively Friction, in addition, can further suppress the discharge of lubricating oil to the outside.

It is preferable that the above-mentioned recesses are staggered so that the recesses provided on the respective front and back plate surfaces do not overlap each other in the thickness direction of the insert. Therefore, since the concave portions are staggered from each other on the front and back surfaces, the thickness of the insert can be ensured so that there is no concave portion directly behind the concave portion on the front side, and the strength is not reduced by the formation of the concave portion.

It is preferable that the size of the concave portion in the short-side direction is within a range of 2.0 mm or less. More preferably, the size of the concave portion in the short-side direction is within a range of 1.0 mm or less. As a result, the contact area between the insert and the knitting tool can be reduced to more effectively reduce the frictional force, and in addition, the discharge of lubricating oil to the outside can be further suppressed.

In addition, it is preferable that the concave portion is formed by dent processing, and the concave shape is provided with the concave portions of the same shape at fixed intervals in each of the short-side direction and the long-side direction. Therefore, it is possible to form recesses simply by indentation without affecting the dimensional accuracy of the processing, and to improve the surface hardness of the plate, and the recesses are provided at fixed intervals, so a balanced and comprehensive effect can bring about the lubricating oil retention effect.

In addition, it is preferable that the recessed portions are provided in a uniform arrangement in the entire recessed area. Thereby, there is no uneven effect due to the position in the recessed area, as long as it is within the recessed area, the same friction reduction effect can be obtained anywhere.

In the present invention, a circular knitting machine having the above-mentioned needle bed is preferable. In this case, a circular knitting machine with a needle bed can be obtained without significantly changing the structure of the insert and the knitting tool itself, thereby reducing the contact area between the sliding knitting tool and the insert and reducing friction. [Efficacy of invention]

The present invention can realize that the structure itself of the knitting tool or the insert (the insert forming a groove for accommodating the knitting tool in a slidable manner) is not significantly changed, thereby reducing the contact area between the slidable knitting tool and the insert, and Reduce friction.

Any combination of at least two structures disclosed in the patent application scope and/or specification and/or drawings are included in the present invention. In particular, any combination of two or more of the claims in the scope of the patent application is included in the present invention.

[Preferable form for carrying out the invention]

Hereinafter, embodiments of the present invention will be described based on the drawings. Fig. 1 is a front view showing a circular knitting machine 10 having a needle bed according to the first embodiment. The circular knitting machine 10 is, for example, a single-face knitting circular knitting machine, which includes a knitting section 12 for knitting a tubular knitted fabric; a winding section 13 for winding a tubular knitted fabric; a control section 16 for controlling circular knitting The whole machine.

In FIG. 1, the knitted portion 12 is provided above the bed 22 supported by the plurality of legs 21. A plurality of columns 24 are erected on the bed 22, and a horizontal member 25 is fixed to the upper part by a connecting member. The yarn feeder 9 is supported on the horizontal member 25. The knitting unit 12 is controlled by the control unit 16 to rotate the barrel 33 (FIG. 2) by driving of the main motor 15, and the barrel 33 accommodates a plurality of barrel needles 31 (FIG. 2) in the barrel needle in a freely sliding manner In the groove 32 (FIG. 2 ), the yarn 11 is supplied to the bobbin needle 31 via the yarn feeder 9 so that the needle heads are spirally overlapped, and a tubular knitted fabric is knitted. The knitted fabric is taken up by the take-up section 13 which includes a plurality of take-up rollers provided below the bed 22.

FIG. 2 shows a partial longitudinal cross-sectional view of the knitting portion 12 of the single-face circular knitting machine. The single-sided circular knitting machine includes a cylindrical needle cylinder 33, and the sinker plate 36 is provided on the upper portion of the needle cylinder 33, and both rotate synchronously. The barrel needle 31 is inserted into the barrel needle groove 32 provided vertically on the outer periphery of the barrel 33. The syringe triangle 34 is mounted on the syringe triangle saddle 42, the gear ring 37 rotates with the drive of the main motor 15 (FIG. 1), and by the rotation of the syringe 33 fixed to the upper part of the gear ring 37, the syringe needle 31 The needle butt 45 is guided up and down by the triangular needle channel 38 of the cylinder.

On the other hand, the sinker 35 formed by the auxiliary loop is inserted into the sinker groove provided radially on the top surface of the sinker tray 36, and the sinker cam 43 is mounted on the sinker cam saddle 41 by a circular knitting machine. The driving of the sinker plate 36 rotates with it, and the sinker heel 44 of the sinker 35 is guided by the sinker triangle needle 40 to move forward and backward. The sinker 35 is inserted into the grooves of the sinker disk 36 and the sinker ring 39. The cylinder needle 31 and the sinker 35 are orthogonal to each other and face each other, and the mutual movement of the two forms a loop to produce a tubular knitted fabric.

Although it does not exist in this example, the needle bed 30 may contain a knitting tool such as a jacquard piece (not shown) of the needle selector in addition to the cylinder needle 31 and the sinker 35 when the circular knitting machine is in operation Operate under the guidance of a triangle, needle selector, etc.

FIG. 3 is a cross-sectional view of the syringe 33. The needle bed 30 cuts the insert groove 51 in the base material of the barrel 33 with a cutting tool, and then inserts a rectangular plate-shaped insert 50 into the insert groove 51 and bonds it with an adhesive Pick up. Furthermore, the cylinder needle 31 is inserted into the cylinder needle groove with both side surfaces of the facing plate surface of the adjacent insert 50, and accommodated in a slidable manner (FIG. 2).

4 is a partial cross-sectional view of the needle bed 30 and a partially enlarged view thereof. A plurality of recesses 53 are formed on the front and back surfaces of the insert 50 constituting the contact surface of the barrel needle 31 in the short-side direction X and the long-side direction Y, respectively. The insert 50 is divided into a flat region 50A without a recess 53 and a recess region 50B in the short-side direction X.

As shown in FIG. 4, in general, the barrel needle 31 has a curved shape for reasons such as prevention of needle breakage. The concave portion 53 provided in the insert 50 has a circular concave shape, and is set to have a diameter smaller than the X dimension in the short side direction of the cylinder needle 31 which is a knitting tool. Since the short-side dimension of the barrel needle 31 is also more than 1/4 of the short-side dimension of the insert 50, as long as the diameter of the recess 53 is less than 1/4 of the short-side dimension of the insert 50, the The barrel needle 31 and the recess 53 overlap in the short-side direction X, or there are many overlapping portions. In addition, because the plurality of recesses 53 are set to a small diameter inside the insert 50 and do not communicate with the outside, the effect of remaining oil is not easily discharged to the outside, and the retention is maintained, which can reduce the gap between the barrel needle 31 and the insert 50. Friction.

In addition, the cylinder needle 31 mostly has a dimension in the short-side direction X having a height of the side wall extending in the short-side direction X of the cylinder groove 32. Therefore, as long as the diameter of the recessed portion 53 is 1/2 or less of the dimension of the short-side direction X of the barrel needle groove 32, the barrel needle 31 and the recessed portion 53 can almost overlap in the short-side direction X, or the overlapping portions can increase. In the case of the above-mentioned Chinese Patent Publication CN101805955, a row of recesses in the longitudinal direction of the insert and larger in the short-side direction is provided, because less than half of the recesses overlap with the barrel needle, which may cause friction Since the effect of reducing the force becomes small, in the present invention, a plurality of small recesses are provided in the short-side direction X and the long-side direction Y to reduce the frictional force.

In addition, if the insert 50 itself is considered, the adhesion area as the base material is used for about 1/2 of the X dimension in the short side direction, and the remaining 1/2 constitutes the side wall of the barrel needle groove 32. Since 1/2 of the side wall constitutes a recessed region, as long as the diameter of the recessed portion 53 is about 1/4 of the dimension X in the short side direction of the insert 50, the effect of the present invention can be sufficiently obtained.

The dimension of the longitudinal direction Y×short direction X of the insert 50 of this example is approximately 150 mm×8 mm. In addition, as shown in FIG. 4, the barrel needle 31 has a configuration in which the shape of the needle portion at the front end, the butt 45 and the like are different, and the X dimension in the short side direction is in the range of about 1.0 to 6.5 mm. As described above, as long as the diameter of the recess 53 is about 1/4 of the dimension X in the short side direction of the insert 50, the effect of reducing the frictional force can be obtained, so the diameter D of the recess 53 is preferably in the range of 2.0 mm or less . In addition, in consideration of the minimum value of the dimension X in the short side direction of the barrel needle 31, the diameter D of the recess 53 is particularly preferably within a range of 1.0 mm or less. In addition, considering the retaining effect of the lubricating oil, the depth H is preferably 5 to 20 μm (0.005 to 0.02 mm). Even in such a shape with a small diameter, since the recesses 53 are alternately formed, compared with the case where there is no recess, the contact area of the insert 50 and the barrel needle 31 becomes 1/2 of the whole and the frictional force can be reduced. By providing a plurality of small recesses 53, the frictional force can be reduced, and the lubricating oil retention effect becomes greater.

In this example, as shown in a partially enlarged view of FIG. 4, on the board surface of the insert 50, they are in the shape of zigzags (thousands of birds) at equal intervals with the same shape, that is, they are staggered from each other along the short side direction X and the long side direction Y Out of a round recess 53. The solid circle indicates the concave portion 53 on the front side, and the dotted circle indicates the concave portion 53 on the reverse side. Since the recesses 53 formed on the front and back surfaces of the sheet material of the insert 50 are staggered and do not overlap each other in the thickness direction, the thickness of the insert 50 after the recess processing is kept almost constant as a whole, from the viewpoint of strength Is fixed.

FIG. 5 is an enlarged cross-sectional view of the V portion of FIG. 3 showing a state where the barrel needle 31 is slid between the inserts 50. As shown in FIG. 5, the barrel needle 31 slides between the adjacent inserts 50 in the longitudinal direction Y (see FIG. 4 ). A plurality of recesses 53 are provided on the outer surface of the insert 50 by dent processing. The dent processing is to provide recesses of the same shape at fixed intervals in each of the short-side direction X and the long-side direction Y.

The concave portion 53 is formed by indentation processing on both sides of the plate material by ordinary standard pressing. The dent processing does not affect the dimensional accuracy of the processing. In addition, the double-sided pressing effect can increase the surface hardness of the insert 50.

For the needle bed of the insert of the present invention and the ordinary needle bed using a common insert without recesses, the power consumption is measured and compared, respectively. The common knitting conditions are: the diameter of the circular knitting machine is 30 inches, 28G (number of needles per inch), the rotational speed of the circular knitting machine is 40R.PM, the yarn is polyester yarn 167dtex (sub-tax), and the knitting structure is plain weave, The needle density is 240mm/100W (warp), and the circular knitting machine operates 2000 times to knit this knitted fabric.

As a result, the power consumption of an ordinary needle bed is 2223.9Wh. On the other hand, the power consumption of the needle bed of the insert of the present invention is 1901.6Wh. As a result, the frictional force due to the recess 53 was reduced, and a power saving effect of 14.5% was confirmed.

This example is a single-sided circular knitting machine, but in the case of a double-sided circular knitting machine (not shown), in the same way as a single-sided circular knitting machine, a recess is formed in the insert 50 of the cylinder needle groove on which the cylinder needle slides. A recess is formed in the insert of the disk needle groove in which the disk needle slides in the needle bed in which the disk needle and the jacquard sheet are accommodated. As a result, in the same manner as the above-described single-knit circular knitting machine, the frictional force can be reduced by the recess in each needle bed.

6 is a side view of a sinker according to a second embodiment of the invention. In this example, a plurality of circular recesses 53a are formed on the front and back surfaces of the plate-shaped sinker 35 that is moved horizontally with respect to the needle moving up and down to assist the coil formation. The other structure is the same as that of the first embodiment, but it is not necessary to provide a recess in the insert of the needle bed of the first embodiment.

The sinker 35 moves back and forth in the radial direction of the syringe 33. At this time, as shown in FIG. 2, the center of the syringe 33 on the sinker 35, that is, the front part, is tied to the vicinity of the central portion and rubs against the groove that accommodates the sinker 35. However, in the rear part in the opposite direction, friction occurs near the entire lower part and the groove that accommodates the sinker 35. Therefore, the concave portion 53a of FIG. 6 is provided on the entire front center and rear portion of the sinker 35. Although the diameter of the recess 53a has an effect as long as it does not exceed the knitting tool, in this example, in order to uniformly produce a lubricating oil retaining effect as a whole, it is preferable to provide a plurality of small recesses. Therefore, by the dent processing, a plurality of minute circular concave portions 53a are provided at equal intervals in the front-rear direction and the vertical direction.

In addition to the sinker 35 of this example, by providing recesses in knitting tools such as needles and jacquard sheets, even when recesses are not provided in the needle bed, the same effect can be obtained. In addition, in the case where the recessed portion 53a is provided in the sinker 35, even if the recessed portion 53 is not provided in the insert 50, there is still an effect without performing the processing of the recessed portion in the needle bed.

In this way, a plate-shaped knitting tool that can be slidably accommodated in a groove formed in a needle bed of a circular knitting machine is adopted, and it is the short side direction and length on the two side surfaces with the largest area on the front and back sides A knitting tool for a circular knitting machine in which a plurality of recesses are provided in the lateral direction, whereby the structure of the knitting tool or the groove that accommodates the knitting tool in a slidable manner does not change significantly and the sliding between the knitting tool and the groove can be reduced Contact area to reduce friction.

In addition, as long as the knitting tool is divided into a planar region without recesses and a recessed region having recesses in the short-side direction, and the size of the recesses in the short-side direction is smaller than that of the knitting tool, the recesses and the outside are not connected, and lubricating oil is retained To reduce friction.

In addition, as long as the knitting tool is accommodated in the groove and the recessed portion includes a contact portion with the groove, friction can be reduced by reducing the contact area of the contact portion with the recessed portion.

In addition, the concave portions may be staggered so that the concave portions provided on the side surfaces do not overlap each other in the thickness direction of the knitting tool. As a result, the thickness of the knitting tool after the processing of the recesses is kept almost constant as a whole, and it is fixed from the viewpoint of strength.

In addition, it is preferable that the short-side dimension of the concave portion in the short-side direction is within a range of 1.0 mm or less. In this way, compared with the needle with the smallest dimension in the short side direction of the knitting tool, the size of the concave portion in the same direction becomes smaller, the concave portion does not exceed the front surface of the knitting tool, and the concave portion is not in communication with the outside, which can maintain lubricating oil and reduce friction .

In addition, it is preferable that the recessed regions are respectively provided such that one of the side surfaces includes a region around a side edge in one direction in the short-side direction, and the other of the side surfaces includes The periphery of the side end in the opposite direction of the side end. Thereby, the recessed area can be provided at a portion where the rotation of the circular knitting machine causes the knitting tool to incline, and the contact between the knitting tool and the groove becomes stronger, which can effectively reduce friction.

In the single-sided circular knitting machine using sinkers 35, the sinker disc 36 and sinker ring 39 of FIG. 2 are directly formed with a slot that can accommodate knitting tools, and the plate-shaped sinker 35 is located in the slot Slide in. Therefore, it is necessary to reduce the frictional force as in the first embodiment, and as shown in FIG. 6, the plurality of recesses 53 a are provided on the front and back surfaces of the sinker 35.

As such, in the present invention, by providing a plurality of recesses on the contact surface between the insert and the knitting tool, the contact area and friction can be reduced, thereby reducing power consumption. In addition, due to the effect of retaining the lubricating oil by the recessed portion, the amount of use can be reduced. In addition, since the concave portions are shifted from each other on the front and back surfaces constituting the contact surface, a fixed plate thickness can be ensured, and the strength is not reduced by the concave portions.

In addition, in each embodiment, the concave portion has a circular concave shape, but it is not limited to this at all, and an elliptical shape, a polygonal shape, or the like may be used instead of a circular shape. In addition, the concave portions 53 are provided in a zigzag shape at equal intervals in the same shape, however, it is not limited to this at all, and the shape and interval may be changed. In addition, the recess may be provided on either one side of an insert, a knitting tool, or both sides. In the case of a single surface, it is preferable to provide a concave portion on the surface in the direction opposite to the rotation direction of the needle bed. In addition, the recessed region may not be provided on the entire surface, but may be scattered around the surface. In addition, in the case where the concave portions are provided on both sides, it can also be provided that the concave portion regions do not overlap partially or completely in the thickness direction of the insert.

The preferred embodiments have been described above with reference to the drawings, but as long as a person skilled in the art looks at the description of this case, various changes and modifications should be easily conceivable within the obvious scope. Therefore, such changes and modifications should be interpreted as being within the scope of the present invention determined by the scope of the patent application in this case.

9: Yarn feeding department 10: Circular knitting machine 11: Yarn 12: Weaving Department 13: take-up department 15: main motor 16: Control Department 21: Feet 22: bed 24: column 25: horizontal member 30: Needle bed 31: Needle 32: barrel needle groove 33: syringe 34: syringe triangle 35: sinker 36: sinker plate 37: Gear ring 38: Syringe triangle needle channel 39: sinker ring 40: Sink triangle triangle 41: Sink triangle saddle 42: syringe triangle saddle 43: Sink triangle 44: sinker heel 45: Needle heel 50: Insert 50A: flat area 50B: recessed area 51: Insert slot 53, 53a: recess D: diameter H: depth X: Short side direction Y: Long side direction

The present invention should be more clearly understood from the description of the following preferred embodiments with reference to the drawings. However, the embodiments and drawings are used for simple illustration and description, and should not be used to limit the scope of the present invention. The scope of the invention is determined by the scope of the patent application. In the drawings, the same element symbol in multiple drawings represents the same part. 1 is a front view of the entire single-sided circular knitting machine according to the first embodiment of the present invention; 2 is a partial longitudinal cross-sectional view of the knitting portion of the single-sided circular knitting machine; Figure 3 is a lateral cross-sectional view of the syringe; 4 is a partial cross-sectional view of the needle bed and a partially enlarged view; 5 is an enlarged cross-sectional view of a portion V of FIG. 3 showing a state where the needle slides between the inserts; 6 is a side view of the sinker in the second embodiment of the present invention.

12: Weaving Department

31: Needle

32: barrel needle groove

33: syringe

34: syringe triangle

35: sinker

36: sinker plate

37: Gear ring

38: Syringe triangle needle channel

39: sinker ring

40: Sink triangle triangle

41: Sink triangle saddle

42: syringe triangle saddle

43: Sink triangle

44: sinker heel

45: Needle heel

50: Insert

Claims (9)

A needle bed of a circular knitting machine, which can be set in a circular knitting machine, The needle bed accommodates a knitting tool in a groove in a slidable manner, and the groove is formed by two opposing side surfaces of adjacent rectangular plate-shaped inserts, The insert is provided with a plurality of recesses in the short-side direction and the long-side direction of the plate surface. The needle bed of a circular knitting machine as claimed in item 1 of the patent scope, wherein the insert is divided into a flat area without a concave portion and a concave area with a concave portion in the short-side direction, and the size of the concave portion in the short-side direction is The short-side dimension of the insert is 1/4 or less. As for the needle bed of a circular knitting machine as claimed in item 1 or 2, the size of the recess in the short-side direction is smaller than the size of the knitting tool in the short-side direction. The needle bed of a circular knitting machine according to any one of items 1 to 3 of the patent application scope, wherein the recess is formed such that the recesses provided on the front and back plates are staggered from each other in the thickness direction of the insert Does not overlap with each other. The needle bed of a circular knitting machine according to any one of the items 1 to 4 of the patent application, wherein the size of the concave portion in the short-side direction is within a range of 2.0 mm or less. The needle bed of a circular knitting machine as described in any of items 1 to 4 of the patent application, wherein the size of the recess in the short-side direction is within a range of 1.0 mm or less. As for the needle bed of the circular knitting machine according to any one of the items 1 to 6 of the patent application range, the recess is provided so as to be uniformly arranged in the entire region of the recess. The needle bed of a circular knitting machine as described in any one of the patent application items 1 to 7, wherein the concave portion is formed by dent processing, the dent processing is the same shape of the concave portion in the short side direction Set at a fixed interval from each direction of the long side direction. A circular knitting machine, including the needle bed of the circular knitting machine according to any one of the patent application items 1 to 8.

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