KR20080003233A - Flat knitting machine - Google Patents

Abstract

A flat knitting machine is provided to prevent knitting needles of needle beds at both sides of a knitted cloth from drawing a knitting yarn during circumferential knitting of gloves or socks, by improving the structure of the knitting machine. An end of a right stitch cam lever(36) is contacted with a cylinder portion(39a) protruded from a right stitch cam slide member(39), which is connected to a right stitch cam through connection members(39b,39c). Like the right stitch cam, an end of a left stitch cam lever(40) is contacted with a cylinder portion(44a) of a left stitch cam slide member(44), which is connected to a left stitch cam through connection members(44b,44c). When a right stitch cam drive bar(31) is displaced in a predetermine direction, the right stitch cam and the left stitch cam are respectively displaced along long grooves(12R,12L) to regulate the density of stitch. A left stitch cam conversion-sided roller(43), which is contacted with a movable needle raising cam drive bar(32), is installed at the left stitch cam lever. The density of stitch by the left stitch cam is regulated through the right stitch cam driver bar according to operation of the movable needle raising cam.

Description

Flat Knitting Machine {FLAT KNITTING MACHINE}

1 is a layout view and a partial side view of the mechanism side of the cam surface 5a which simplifies a partial configuration of one needle bed side of the flat knitting machine 30 as an example of an embodiment of the present invention.

Fig. 2 is a layout view of the mechanism side of the cam surface 5a and a corresponding cam side arrangement diagram in which only the stitch cam R driving bar 31 in Fig. 1 is displaced in the direction of the arrow in Fig. 1, and the movable single-needle laser cam driving bar 32 is not displaced. to be.

Fig. 3 is a layout view of the mechanism side of the cam surface 5a and a corresponding cam side arrangement diagram showing a state where the stitch cam R drive bar 31 and the movable single-needle laser cam drive bar 32 in Fig. 1 are displaced in the direction of the arrow in Fig. 1.

Fig. 4 is a layout view of the mechanism side of the cam surface 5a and the corresponding cam side, showing a state in which the displacement amount downward of the stitch cam R drive bar 31 in Fig. 1 is smaller than the displacement amount downward of the movable single-needle laser cam drive bar 32; It is a layout view.

Fig. 5 is a simplified plan view showing a schematic configuration of a flat knitting machine 1 conventionally used for knitting cylindrical knitted fabrics such as gloves and socks.

FIG. 6 is a side view showing a schematic configuration of a single needle 20 driven by the cam mechanism 5 shown in FIG.

FIG. 7 is a layout view of the cam side on the cam surface 5a showing the action of each cam shown in FIG. 5 at the time of knitting.

FIG. 8 is a simplified diagram showing only the positional relationship between the stitch cam R and the stitch cam L in the flat knitting machine 1 shown in FIG.

*** Description of the symbols for the main parts of the drawings ***

2F front needle bed 2B rear needle bed

4F, 4B carriage 5 cam mechanism

8 rising cam

9 movable needle raising cam

11R Stitch Cam R (stitch cam R) 11L Stitch Cam L

30 flat knitting machines

31 stitch cam R drive bar

32 Movable needle raising cam drive bar

33 Forward Side Adjustment Mechanism

34 Reverse Side Adjustment Mechanism

35 Converter port

36 stitch cam R lever

38 stitch cam R roller

40 Stitch cam L lever 42 Stitch cam L Adjustment roller

43 Stitch cam L conversion roller

47 movable needle raising cam roller

TECHNICAL FIELD This invention relates to the flat knitting machine which knits the cylindrical knitted fabric of comparatively narrow knitting widths, such as a glove knitting machine and a socks knitting machine.

Conventionally, the cylindrical knitted fabrics, such as gloves and socks, are knitted by the flat knitting machine 1 of the structure as shown in FIG. The flat knitting machine 1 is provided with a pair of flat needle beds 2F and 2B facing each other with the needle bed gap 3 interposed therebetween. Moreover, although the pair of flat needle beds 2F and 2B are arrange | positioned inclined to the mountain shape which makes the needle bed gap 3 a top part, in FIG. 5, the state seen from the upper side of the needle bed gap 3 is shown in simplified state and is flat. to be. Since the pair of needle beds 2F and 2B are arranged before and after the flat knitting machine 1 with respect to the center of the needle bed gap 3, they are called the front needle bed 2F and the rear needle bed 2B, but the basic configuration is the same. Hereinafter, the same component as before and after may be shown by attaching the code | symbol which abbreviated the subscript of "F" and "B". Each needle bed 2F, 2B is provided with the carriage 4F, 4B which reciprocates along a longitudinal direction, respectively, and interlocks.

Each of the carriages 4F and 4B has a cam mechanism 5 for driving a needle needle capable of moving back and forth with respect to the needle bed gap 3 in the needle grooves provided in parallel with the needle beds 2F and 2B. Mounted. The cam mechanism 5 is a rising cam as a rising cam together with a center cam 6 and a center guide cam 7 which are commonly used for carriages 4F and 4B. The bridge cam has a lower edge and forms a butt passage between the raining cam 8 and the movable needle raising cam 9 and the upper edge of the center cam 6. 10 and stitch cams 11L and 11R as descending cams. The center cam 6, the center guide cam 7, the lasing cam 8, the movable single-needle lasing cam 9, the bridge cam 10, and the stitch cams 11L and 11R are shown as a layout of the state seen from the back of the cam surface 5a. to be. The cam mechanism 5 is arrange | positioned at the surface of the cam surface 5a which the carriages 4F and 4B contact | connect the needle beds 2F and 2B. The running directions of the carriages 4F and 4B with respect to the needle beds 2F and 2B are set to the left or right direction as viewed from the cam side of the cam surface 5a with the needle bed gap 3 side upward in each of the needle beds 2F and 2B. All. Therefore, the driving in the right direction in Fig. 5 is the driving in the left direction when viewed from the cam 5a surface of the carriage 4F on the front needle bed 2F side, and the acting as the lowering cam is the stitch cam L indicated by reference numeral 11L. With respect to the carriage 4B on the needle bed 2B side, which interlocks with the carriage 4F on the front needle bed 2F side, the needle bed gap 3 is moved upward in the right direction when viewed from the cam surface 5a. Stitch cam R is shown. When the carriages 4F and 4B travel in the left direction in Fig. 5, the stitch cam R indicated by reference numeral 11R acts on the front needle bed 2F side, and the stitch cam L indicated by reference numeral 11L acts on the rear needle bed 2B side.

In the flat knitting machine 1 as shown in Fig. 5, a portion of a tubular knitted fabric, such as a glove or a sock, is supplied and knitted so as to circulate the knitting yarn. This main assembly is made to move to the right, for example, when the carriages 4F and 4B on which the cam mechanisms 5 are mounted are viewed from the cam surface 5a side in contact with the needle beds 2F and 2B with the needle bed gap 3 facing up. Therefore, when viewed from above the needle bed gap 3, as shown in Fig. 5, it is in a state of seeing from the rear side of the cam surface 5a, and in the left needle bed 2F in the front needle bed 2F and in the right needle direction of the drawing in the rear needle bed 2B, respectively. Direction. In this way, the main assembly is basically performed in different directions for each needle bed 2F and 2B. In the circumferential knitting moving from the cam surface 5a to the right side, only the stitch cam R, which is the rear of the carriage 4F and 4B in the traveling direction, is used for knitting by adjusting the stitch density so that the descending amount of the knitting needle becomes larger than a predetermined value. L is made into the stationary state in which the amount of falling of the knitting needle is minimized. The reason for this is that if the stitch cam L is not stopped and the stitch cams on the left and the right side are acted together to lower the knitting needle to a lower amount than the predetermined value, the knitting needle is simultaneously needle bed gap 3 in the front and back needle beds 2F and 2B. This is because it descends from. If the knitting yarns spread across the front and rear needle beds 2F and 2B at the knitting end of the cylindrical knitted fabric are pulled from both sides, the stitch density may be excessively set and the thread may be excessively pulled, which is undesirable. . In order to reduce the possibility of such thread breaking, it is preferable to change the stitch cam L, which is not used for the knitting, to a stationary state.

In the cam mechanism 5 shown in Fig. 5, the stitch cams 11L and 11R are displaced along the long grooves 12L and 12R to adjust the stitch density. When the cylindrical knitting in one direction is performed in a normal knitting state, one needle bed is used to knit the knit fabric, and the other needle bed is alternately repeated. In the cam mechanism 5 of FIG. 5, the movable cam needle raising cam 9 which raises the knitting needle to the needle bed gap 3 always operates while the raising cam 8 for raising the needle needle for lowering the stitch cam R to the needle bed gap 3 always operates. The inflow and outflow conversion can be carried out, and usually it is recessed in the cam surface 5a and is inactive.

FIG. 6 is a diagram showing a schematic configuration of a single needle 20 driven by the cam mechanism 5 shown in FIG. The knitting needle 20 is formed by connecting the tail of the needle 21 and the head of the jack 22. A hook 23 and a latch 24 are formed at the distal end of the needle 21, and the hook 23 can be opened and closed by the latch 24. The jack 22 is subjected to a needle selection action of a needle selection drum provided at the lower portion of the needle bed 2 at the tail portion side. The needle butt 25 and the jack butt 26 are formed in the needle 21 and the jack 22, respectively, and when the needle is selected, the jack butt 26 is subjected to the action of the cam mechanism 5 shown in FIG. The carriage 4 of the flat knitting machine 1 which knits a glove or a sock is also provided with a cam called an elastic razor cam for knitting which acts on the jack butt 26 and inserts an elastic yarn. The illustration is omitted. In the case where the socks are exclusively knitted, a picker that acts on the needle butt 25 and converts the use and non-use of the knitting needle 20 is also provided in the carriage 4, but is not shown in FIG.

Fig. 7 is a diagram showing the action of each cam at the time of knitting, as seen from the cam side of the cam surface 5a. The movable single needle lasing cam 9 shown by the broken line is converted into a non-acting state recessed in the cam surface 5a.

As shown in Fig. 7 (a), at the time of the rightward movement in the forward direction, the jack butt 26 of the single needle 20 passes the path 26a that rises along the rising cam 8a of the laser cam 8. The rising cam 8 includes an inclined surface 8b together with the rising cam 8a, and is pressed by a spring so as to protrude from the cam surface to the needle bed 2 side as a whole. The path 26a of the jack butt 26 raised by the rising cam 8a passes between the upper edge of the center cam 6 and the lower edge of the bridge cam 10 and descends by the stitch cam R indicated by reference numeral 11R.

As shown in Fig. 7 (b), the jack butt 26 of the single needle 20 passes through the movable single needle razor cam 9 in the recessed state through the path 26b to reach the inclined surface 8b of the laser cam 8. On the inclined surface 8b, the jack butt 26 can smoothly shift from the cam surface 5a to the left side of the drawing, and if the jack butt 26 further shifts to the right side of the drawing, the elastic cam presses the urging cam 8 to protrude from the cam surface 5a. The resisting cam 8 sinks to the cam surface 5a, and the jack butt 26 also passes through the portion of the raised cam 8a. If the stitch cam L indicated by reference numeral 11L is stationary, the lowering of the knitting needle 20 is minimal. However, if the stitch cam L is lowered along the long groove 12L to a stitch density value equal to or greater than that of the stitch cam R indicated by reference numeral 11R, the jack butt 26 of the single needle 20 is lowered more than the minimum. If the movable single-needle laser cam 9 is protruding from the cam surface, the jack butt 26 can be guided along the path ascending, as in the raising cam 8a of the laser cam 8 shown in Fig. 7A.

The flat knitting machine 1 which exclusively knits gloves or socks is called a glove knitting machine or a sock knitting machine. Compared with the general flat knitting machine, the flattening machine 1 is compared with a general flat knitting machine, and the driving speed and productivity are reduced due to the small size and light weight of the carriage 4. Improvement and the like are planned. When the stitch density adjustment of the stitch cam of the cam mechanism 5 for knitting driving mounted on the carriage 4 is driven from the needle bed 2 side, the carriage 4 does not need to be equipped with a driving source such as a stepping motor (for example, a patent Reference Document 1) can be reduced in size and weight. In the stitch cam control apparatus in flat knitting machines such as glove knitting disclosed in FIGS. 1 and 2 of Patent Literature 1, stitch density adjustment of both stitch cams is performed in conjunction with a common driving bar. have.

FIG. 8 shows only the positional relationship between the stitch cam R and the stitch cam L in the flat knitting machine 1 shown in FIG. In the front and rear needle beds, the stitch cams R and the stitch cams L are in a mutually intersecting position. For example, suppose that the knitting end is reached by running in the left direction of the carriage 4, and the running direction of the carriage 4 is reversed. As shown in Fig. 7, if the stitch cam L is kept stationary, the influence on the knitting yarns caught on the needle beds on the opposite side is small even if the stitch cam R lowers the knitting needle at the knitting end. If the knitting yarns are pulled between the opposite stitch cams R and the stitch cams L at the knitting end, the knitting yarns may be broken. Therefore, as disclosed in Patent Literature 1, when both stitch cam R and stitch cam L are interlocked by a common driving bar to adjust the stitch density, the needle needles of the needle beds on both sides pull the knitting yarns from the knitting end. May occur.

Also, in the initial knitting of the tip of the finger in the glove or the socks, the knitting of the finger joints, the heel of the sock, and the like, the movable knitting needle lamination cam 8 shown in Fig. 7 is projected, and the stitch cam L and the stitch cam R on the right and left are interlocked. Lower 20. In the initial knitting and the joining portion, at least one stitch density value is set small. In the knitting of the heel of a sock, the knitting operation is performed only by one needle bed, and the other needle bed is stopped. Therefore, in the initial knitting, the joint part, and the heel part knitting, the situation where the knitting needles of the needle beds on both sides pull the knitting yarns together does not occur.

Patent Document 1: Japanese Unexamined Patent Publication No. 3-185161

In a configuration in which the stitch densities of the stitch cam R and the stitch cam L are adjusted by a common driving bar as disclosed in Patent Literature 1, the needle needles of the needle beds on both sides may be pulled from each other at the knitting end. There is a possibility that the setting of the stitch density value may be restricted. When the stitch density can be adjusted by a drive bar independent of the stitch cam R, the problem of pulling the knitting yarns from both sides can be avoided, but the number of use of the drive bars increases. In the cam mechanism 5 shown in Fig. 5, the appearance of the movable single-needle lasing cam 8 is required along with the stitch density control of the stitch cam L and stitch cam R shown by 11L and 11R. In order to make the jaw knitting possible with the cam mechanism 5, it is necessary to make the center cam 6 and the center guide cam 7 wanderable, and to change the wandering. In addition, an elastic raising cam (elastic raising cam) acting on the needle butt 25 of FIG.

An object of the present invention is to provide a flat knitting machine that can avoid the situation that the knitting needles of the needle beds of both sides at the knitting end pull the knitting yarns at the time of knitting the gloves or socks.

According to the present invention, carriages reciprocating along the longitudinal direction of the needle bed are interlocked with each needle bed of a pair of flat needle beds facing each other with a needle bed gap interposed therebetween, and needle needles of the needle beds are connected to each carriage. On the cam mechanism to be driven for driving, a rising cam for raising the needle and a lowering cam for lowering the needle are disposed in both directions of the carriage reciprocating in the carriage so as to retreat to the needle bed gap. When adjusting the stitch density of the stitch cam and knitting a cylindrical knitted fabric while the yarn is circulated in a predetermined direction, the action of the movable knitting needle cam which becomes the rising cam on the side of the needle bed in the reverse direction of the circumference, The change to the non-action, the direction of carriage of the carriage to each needle bed In the flat knitting machine, which through the driving bar la installation that,

As a drive bar,

An adjusting drive bar which is driven so as to be displaced corresponding to the adjustment amount in the stitch density adjustment with respect to both directions of the carriage reciprocating,

The conversion drive bar is driven to change the action and non-action of the movable single-needle laser cam.

Including,

As a mechanism mounted on the carriage,

A forward side adjustment mechanism for changing the stitch density of the stitch cam on the side in the forward direction of the circumference according to the displacement of the adjustment drive bar;

A converter mechanism for converting the movable single-needle laser cam into action and non-operation according to the driving state of the conversion drive bar;

Stitch density when the conversion drive bar is converted to the action of the movable single-needle laser cam when the conversion drive bar is converted to the action of the movable single-needle laser cam. A reverse side adjustment mechanism for displacing the stitch cams on the side in the reverse direction of the circumference, respectively, to a stop position where?

It is a flat knitting machine characterized by including.

Moreover, in this invention, the said reverse side adjustment mechanism changes the drive position of the stitch cam of the side which becomes the reverse direction of the said circumference in conjunction with the change of the stitch density by the said forward side adjustment mechanism, It is characterized by the above-mentioned.

Further, in the present invention, the reverse side adjustment mechanism is capable of rotational displacement about the point, displaces the stitch cam on the side in the reverse direction of the circumference by the tip of the arm extending from the point, And an adjustment side roller sliding on the adjustment drive bar on the way, and a conversion side roller sliding on the drive bar for conversion.

(Example)

1-4 is a figure which shows schematic structure of the flat knitting machine 30 as an example of embodiment of this invention. In the following description, the parts corresponding to the above-mentioned parts will be denoted by the same reference numerals, and redundant description thereof will be omitted.

1 is a diagram schematically showing a partial configuration of one needle bed side of the flat knitting machine 30 of the present embodiment. (a) is a figure which shows the arrangement | positioning of the mechanism side which drives a cam by the cam surface 5a of the carriage 4. As shown in FIG. (b) is a figure which shows the part which concerns on the stitch cam R drive bar 31 and the movable single needle lasing cam drive bar 32 in (a) from the upper side. The flat knitting machine 30 is provided with a stitching cam R drive bar 31, which is an adjustment drive bar, and a movable single-needle laser cam drive bar 32, which is a conversion drive bar, on each needle bed, and has a drive source displaced in the direction of the arrow from the reference position shown in FIG. do. Each carriage 4 is equipped with a forward side adjustment mechanism 33, a reverse side adjustment mechanism 34, and a converter mechanism 35. The forward side adjustment mechanism 33 includes a stitch cam R lever 36, a stitch cam R lever rotation shaft 37, a stitch cam R roller 38, and a stitch cam R slide member 39. The reverse side adjustment mechanism 34 includes a stitch cam L lever 40, a stitch cam L lever rotation shaft 41, a stitch cam L adjustment side roller 42, a stitch cam L conversion side roller 43, and a stitch cam L slide member 44. The converter mechanism 35 includes a movable single-needle laser cam lever 45, a movable single-needle laser cam lever rotary shaft 46, and a movable single-needle laser cam roller 47. The stitch cam R lever 36, the stitch cam L lever 40, and the movable single needle razor cam lever 45 can be rotated with the stitch cam R lever rotating shaft 37, the stitch cam L lever rotating shaft 41, and the movable single needle raising cam lever rotating shaft 46 as points. . The stitch cam R lever 36, the stitch cam L lever 40, and the movable single needle razor cam lever 45 are positioned on the side of the arm extending from the stitch cam R lever rotating shaft 37, the stitch cam L lever rotating shaft 41, and the movable single needle razor cam lever rotating shaft 46, respectively. The stitch cam R roller 38, the stitch cam L adjustment side roller 42, the stitch cam L conversion side roller 43, and the movable single-needle laminating cam roller 47 are provided.

The stitch cam R roller 38 contacts the stitch cam R drive bar 31. The tip of the arm of the stitch cam R lever 36 contacts the cylindrical portion 39a protruding from the stitch cam R slide member 39. The stitch cam R slide member 39 is displaceable along the long groove 12R, and is connected to the stitch cam R via connecting members 39b and 39c such as bolts. In addition, the stitch cam R slide member 39 is urged to the lower right side of Fig. 1 (a) by the spring which is omitted from the drawing. Similarly, the stitch cam L adjustment side roller 42 is in contact with the stitch cam R drive bar 31, and the tip of the stitch cam L lever 40 is in contact with the cylindrical portion 44a protruding from the stitch cam L slide member 44. The stitch cam L slide member 44 is displaceable along the long groove 12L and is connected to the stitch cam L through connecting members 44b and 44c. The stitch cam L slide member 44 is also pressed to the lower left side of Fig. 1 (a) by a spring which is not shown in the drawing. In the state shown in Fig. 1A, the stitch cam R slide member 39 and the stitch cam L slide member 44 are located near the upper ends of the long grooves 12R and 12L, respectively. Accordingly, when the stitch cam R driving bar 31 is displaced in the direction of the arrow, not only the stitch cam R but also the stitch cam L are shifted obliquely downward along the long grooves 12R and 12L, respectively, and the stitch density can be adjusted.

However, the stitch cam L lever 40 is also provided with a stitch cam L conversion side roller 43 in contact with the movable single needle razor cam drive bar 32. The stitch density control of the stitch cam L through the stitch cam R drive bar 31 is performed by the movable single needle lay. It is premised that the jing cam drive bar 32 is also displaced so as to descend in the direction of the arrow in the figure. The movable single-needle laser cam roller 47 is provided in the middle of an arm extending to one side from the movable single-needle laser cam lever rotating shaft 46, which is a point at which the movable single-needle laser cam lever 45 is rotated. The tip of this arm is an inclined portion 45a. The inclined portion 45a is coupled to the projecting member of the movable single-needle laser cam 9, which is not shown in the drawing, and the movable single-needle laser cam 9 is lowered to the cam surface 5a in the state of FIG. The movable single-needle laser cam 9 is pressurized by a spring in a direction projecting from the cam surface 5a to the cam side. When the movable single-needle laser cam lever 45 rotates in a clockwise direction with the movable single-needle laser cam lever rotation shaft 46 as the point, the inclination is inclined. The lowering amount by the portion 45a decreases, and the movable single-needle laser cam 9 protrudes from the cam surface 5a toward the cam side.

Fig. 2 is a view showing a state in which only the stitch cam R drive bar 31 is displaced in the direction of the arrow in Fig. 1, and the movable single-needle laser cam drive bar 32 is not displaced. As shown in Fig. 2A, the stitch cam R lever 36 moves the stitch cam R lever rotation shaft 37 to a point so as to maintain contact with the stitch cam R roller 38 in conjunction with the displacement of the stitch cam R driving bar 31. Rotate in clockwise rotation. The stitch cam R slide member 39 is displaced along the long groove 12R. In Fig. 1 (a), the stitch cam L adjusting side roller 42 which is in contact with the stitch cam R driving bar 31 is driven by the stitch cam L conversion side roller 43 provided on the same arm of the stitch cam L lever 40. Since the state of contact with the lever 32 is maintained, the displacement of the stitch cam R driving bar 31 is not followed. Therefore, as shown by the cam side in FIG. 2 (b), the stitch cam R indicated by reference numeral 11R is indicated by reference numeral 11L for the stitch density being adjusted by being displaced along the long groove 12R by driving through the connecting members 39b and 39c. The stitch cam L maintains a stop position where the amount of falling of the knitting needle is minimum near the upper end of the long groove 12L. In addition, the movable single-needle laser cam 9 is in a state of being recessed in the cam surface 5a as indicated by a broken line.

3 is a view showing a state in which the stitch cam R drive bar 31 and the movable single-needle laser cam drive bar 32 are displaced in the direction of the arrow in FIG. As shown in the mechanism side in Fig. 3 (a), the stitch cam L adjustment side roller 42 and the stitch cam L conversion side roller 43 provided on the stitch cam L lever 40 are the stitch cam R drive bar 31 and the movable single needle lasing cam. Since the displacement follows the displacement of the drive bar 32, the stitch cam L lever 40 is rotated counterclockwise in the drawing with the stitch cam L lever rotation axis 41 as a point to displace the stitch cam L slide member 44 along the long groove 12L. Let's do it. The movable single-needle laser cam lever 45 is rotated in a clockwise direction with the movable single-needle laser cam lever rotating shaft 46 as a point to ease the lowering of the movable single-needle laser cam 9 by the inclined portion 45a. Therefore, as shown by the solid line on the cam side of Fig. 3 (b), the movable single-needle laminating cam 9 protrudes from the cam surface 5a, and the stitch cam L indicated by reference numeral 11L is driven by driving through the connecting members 44b and 44c. It shifts to the stitch density value equivalent to the stitch cam R shown by the code | symbol 11R.

4 is a view showing a state in which the displacement amount downward of the stitch cam R driving bar 31 is smaller than the displacement amount downward of the movable single-needle laser cam driving bar 32. As shown in Fig. 4A, the stitch cam R lever 36 and the stitch cam L lever 40 are in contact with the stitch cam R roller 38 and the stitch cam L adjusting side roller 42, respectively. At that position, the state of rotational displacement is limited. If the displacement amount of the movable single-needle laser cam driving bar 32 is equal to that of Fig. 3 (a), the displacement amount of the stitch cam R driving bar 31 is smaller than that of Fig. 3 (a). As a result, the stitch density values of the stitch cam R and the stitch cam L shown in the cam side in Fig. 4B are smaller than those shown in Fig. 3B.

In other words, if the movable single-needle laser cam driving bar 32 is sufficiently displaced downward, the stitch density can be adjusted in common to the stitch cam R and the stitch cam L by the displacement of the stitch cam R driving bar 31. Such stitch density adjustment can be performed similarly to patent document 1. As shown in Fig. 2 (a), if the movable single-needle laser cam drive bar 32 is not displaced, the stitch density is adjusted for the stitch cam R only at the displacement of the stitch cam R drive bar 31, and the stitch cam L is set to the stop position. You can keep it.

In addition, although the stitch cam R which acts at the time of the right side movement of the carriage 4 is made into the forward side at the time of the knit knitting for cylindrical knitted fabric formation, the setting of each part can also be changed so that the stitch cam L side may turn to the forward side.

According to the present invention, the stitch density of the stitch cam on the side that becomes the forward direction of the circumferential direction is mounted on the carriage from the needle drive side adjustment bar when knitting the tubular knitted fabric while the yarn is swiveled so as to rotate in a predetermined direction. Adjustment is possible through the forward adjustment mechanism. The stitch cam on the side opposite to the main rotation is at a stop position where the stitch density becomes less than the reference when the converting driving bar converts the movable single-needle laminating cam into non-action. The needle needles of the needle beds on both sides can avoid pulling the knitting yarns together. When the movable single needle razor cam is converted into an action, the reverse side adjustment mechanism displaces the stitch cam on the side which is the reverse side of the circumference to the driving position for driving the butt of the single needle at the time of the main knitting, so that the carriage Initial knitting using the needle beds on both sides, knitting on the joints, and knitting on the heel of the socks using only one needle bed can be performed.

In addition, according to the present invention, since the driving position of the stitch cam on the side that is in the reverse direction of the circumference changes with the change of the stitch density of the stitch cam on the side that becomes the circumferential direction by the forward side adjustment mechanism, the forward direction of the circumference is It can be adjusted to the same stitch density on the side to be. For example, in the knitting of the heel portion of the sock, the reciprocating knitting in one needle bed accompanying the nose reduction and the nose extension can be made the same in both directions.

According to the present invention, the reverse side adjustment mechanism is capable of rotational displacement about the point, and displaces the stitch cam on the side in the reverse direction of the circumference at the tip of the arm extending from the point, and slides the driving bar for adjustment in the middle of the arm. Since the adjusting roller and the converting roller sliding on the converting driving bar are provided, the displacement to the stop position during the forward driving during the rotational rotation and the forward stitching in the reciprocating driving without the need for providing an independent driving bar Density can be controlled.

Claims (3)

A carriage for reciprocating along the longitudinal direction of the needle bed is provided in each needle bed of a pair of flat needle beds facing each other with a needle bed gap interposed therebetween. The needle bed gap in each of the needle bed gaps in both directions of reciprocating carriage of the carriage to a cam mechanism provided for interlocking and driving the needle bed needles in each carriage. A rising cam that raises the knitting needle and a lowering cam that lowers the knitting needle to advance and retreat, and adjusts the stitch density of the stitch cam that becomes the falling cam. (I) and when knitting a tubular knitted fabric while yarn knitting so that the knitting yarn circulates in a predetermined direction, the image of the side of the needle bed in the reverse direction of the circumference of the knitting yarn In the conversion to the working action of the knitting needle ray jingkaem (作用) and non-functional (非 作用) which the cam, the flat knitting machine, which through the driving bar (驅動 bar) that provided along the running direction of the carriage on each needle bed, As a drive bar, An adjusting drive bar which is driven so as to be displaced corresponding to the adjustment amount in the stitch density adjustment with respect to both directions of the carriage reciprocating, The conversion drive bar is driven to change the action and non-action of the movable single-needle laser cam. Including, As a mechanism mounted on the carriage, A forward side adjustment mechanism for changing the stitch density of the stitch cam on the side that becomes the forward direction of the circumference according to the displacement of the adjustment drive bar; A converter mechanism for converting the movable single-needle laser cam into action and nonaction according to the driving state of the conversion drive bar; According to the conversion drive bar, when the conversion drive bar is converted to the action of the movable single-needle laser cam, the stitch density becomes a driving position that becomes larger than a predetermined standard. When the conversion drive bar is converted to the non-action of the movable single-needle laser cam, the stitch density is changed. Is a stop position at which the reference is less than or equal to the reverse side adjustment mechanism for respectively displacing the stitch cam on the side in the reverse direction of the circumference. Flat knitting machine comprising a. The method of claim 1, The said reverse side adjustment mechanism changes the drive position of the stitch cam of the side which becomes the reverse direction of the said main rotation in connection with the change of the stitch density by the said forward side adjustment mechanism, The flat knitting machine characterized by the above-mentioned. The method according to claim 1 or 2, The said reverse side adjustment mechanism displaces the stitch cam of the side which becomes the reverse direction of the said circumference to the tip of the arm which can rotate rotation about a point, and extends from a point, and slides on the said drive bar for adjustment in the middle of the said arm. And a conversion side roller which slides on the drive bar for conversion, and an adjustment side roller.

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