JPH0136936Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to a stitch cam adjustment device for a hosiery knitting machine for knitting socks, seamless stockings, tights, etc., for example.

(Prior Art) In general, when a sock knitting machine knits a knitted fabric, for example, knitting is carried out by sequentially changing the thickness from the panty part to the ankle in seamless stockings and tights. The fabric is knitted while changing the weight in order according to each knitting location, such as the elastic part, body part, crease part, bottom part, toe part, etc. Means for knitting fabrics in this way include (1),
(2) Means for changing the height of the stitch cam based on the height of the stitch cam used for knitting needles to form the stitch; (2) Means for changing the stitch cam based on the height of the sinker for tightening the stitch. be. The means (2) for adjusting the height of the stitch cam changes the yarn feeding angle of the loop yarn fed from the yarn feeding location as the stitch cam moves up and down. In particular, in plate knitting (a means of knitting by completely separating the front and back yarns when using two loop yarns), stitch cam As the height of the yarn changes, the feeding angle of each loop yarn changes, making it difficult to perform normal platen knitting.

Therefore, as a means to solve the above-mentioned difficulties, we developed a "position adjustment mechanism for stitch cams in circular knitted stockinette."
(Utility Model Application No. 58-12293) has already been proposed. That is, the position adjustment mechanism of the stitch cam in this circular knitted knitted fabric is constructed as shown in FIGS. 6 to 8.

6 to 8, a cylindrical cam box a of a stitch cam adjustment device in a sock knitting machine is fitted with a knitting needle cylinder (not shown) having knitting needles in a stationary member so as to be vertically oriented and rotatable.
A lead slot b whose lead angle is the retraction angle θ of the knitting needle is bored in a part of the lead slot b, and a sliding member d integral with the guide member c is formed in the lead slot b.
is slidably provided. Further, a well-known stitch cam e and a receiving cam f are fixed to the sliding member d located inside the cam box a with a gap through which the butt of the knitting needle passes, and a part of the guide member c A coil spring g is stretched between and the cam box a so as to pull up the stitch cam e and the receiving cam f diagonally upward, and the upper end of the guide member c is connected to the operating lever h. It is designed to touch and press.

Therefore, the above-mentioned stitch cam position adjustment mechanism in circular knitted knitted knitted fabric is useful, for example, when knitting a fabric by sequentially changing the stitch length from the panty part to the ankle in seamless stockings and tights, that is, when knitting the fabric by sequentially changing the stitch thickness from the panty part to the ankle. When changing and knitting, the operating lever h is made to resist the elasticity of the coil spring g and pull down the stitch cam e and the receiving cam f, which are integrated with the guide member c, in a diagonal downward direction, so that the stitch cam e and the receiving cam f are pulled down in a diagonal downward direction. Move diagonally downward as shown.

As a result, the lowering start position of the knitting needle is not displaced with respect to the axial direction of the knitting needle, and each yarn feeding angle between the knitting needle and the loop yarn is kept constant, as shown in FIG. It is now possible to perform normal plate length formation.

(Problem to be solved by the invention) However, the sock knitting machine that knits the socks and seamless stockings described above always maintains each yarn feeding angle from each yarn path of the yarn feeding unit to the hook of the knitting needle in a constant state. However, for example, the degree of coarseness and density of seamless stockings varies greatly between the size of the waist circumference of seamless stockings and the size of the ankle width of seamless stockings. During the process, the loop yarn becomes slightly slack, making it difficult to maintain constant yarn feeding angles from each yarn path of the yarn feeding unit to the hook of the knitting needle.

In particular, when knitting seamless stockings, when performing so-called plate-teng knitting in which two different yarns are supplied from each yarn feeding point of at least one yarn feeding unit at different yarn feeding angles, the seamless stocking knitted fabric is As the knitting density changes, the number of stitches in the knitted fabric is reduced and the knitting density of the fabric is knitted from coarse to dense. However, when performing stockinette knitting due to the synergistic action of the knitting needles and the sinker, there is a slight difference in the loop yarn supplied. However, there is a risk that the plate length may become loose, which may disrupt the plate length knitting, resulting in a decrease in quality.

On the other hand, the angle of the stitch cam is, for example,
The gauge for knitting sports stockings is large, and the stitch cam angle of the relatively low-speed sock knitting machine is approximately 50 degrees. For vertical gauges, the angle of the stitch cam on medium-speed sock knitting machines is about 40 degrees, and for gauges like seamless stockings, the angle of the stitch cam on high-speed sock knitting machines is about 25 degrees. The yarn material and count (thickness of cotton yarn) used by each sock knitting machine vary, so when the yarn changes, the vertical action of the stitch cam is parallel to the inclination angle of the stitch cam. It is difficult to synchronize with minute fluctuations in the plateng formation by only diagonally vertical movement.

The present invention was developed in view of the above-mentioned circumstances, and the inclination angle of the stitch cam provided on the outside of the knitting needle cylinder can be finely adjusted according to the yarn material and count used. By fine-tuning the operation timing with the knitting needles mentioned above and eliminating the slack in the loop yarn that occurs during knitting, even if the knitting stitch is changed, it will also be able to synchronize with minute fluctuations in plate-teng knitting, resulting in normal plate-teng knitting. An object of the present invention is to provide a stitch cam adjustment device for a hosiery knitting machine that performs stockinette knitting and improves quality.

[Structure of the idea]

(Means for solving the problems and their effects) In the present invention, a knitting needle cylinder equipped with knitting needles is installed in a stationary member so as to be rotatable in a vertical direction, and a ring is attached to a table provided outside the knitting needle cylinder. A groove is formed concentrically with the knitting needle cylinder, a slide member is fitted into this ring groove so as not to slip out, a support member is erected on this slide member, a vertical groove is formed on this support member, and a vertical groove is formed on this support member. A sliding body having a floating habit is fitted in the vertical groove, a stitch cam etc. is attached to the inside of this sliding body, and an abutment pin is inserted outside of this sliding body through a long hole drilled in the support member. an operating lever is pivotally attached to the support member near the abutting pin by a support shaft, and an operating screw is screwed into one arm of the operating lever so as to abut the abutting pin;
A pushing arm lever is pivotally mounted on a table beside the support member so as to be pushed by a pulse motor, a bracket with an indicator is installed on the table, and an adjusting screw with a scale is set on this bracket for the operation. Push the other arm of the screw and screw it in with the tightening screw.
When making fine adjustments to the stitch cam, loosen the tightening screw and align the indicator with the scale.
Based on this, the inclination angle of the stitch cam is finely adjusted to eliminate slack in the loop yarn that occurs during knitting, and to maintain stockinette knitting with normal plate length knitting, even if the thread or count changes. This is an attempt to improve the performance.

(Example) Hereinafter, the present invention will be described with reference to an illustrated example.

In FIGS. 1 to 5, reference numeral 1 denotes a knitting needle 1a fitted vertically to a stationary member so as to be freely rotatable.
This knitting needle cylinder is equipped with a knitting needle cylinder 1, and on the outside of this knitting needle cylinder 1, a ring plate-shaped table 2 is installed horizontally and integrally with the stationary member. A ring groove 3 is formed concentrically with respect to the knitting needle cylinder 1, and in this ring groove 3, an arcuate slide member 4 is provided with a pair of presser plates 5a,
5b to prevent it from slipping out upwards, and is fitted in a slidable manner. Further, a support member 6 is erected on this slide member 4, and a vertical groove 7 is formed in the middle of this support member 6 in a vertical direction. A sliding body 8 forming a shape is given a floating habit by the elasticity of a coil spring 9 and is fitted in a slidable manner. Furthermore, a well-known stitch cam 10 and a stitch cam 11 are attached to the inside of the sliding body 8 so as to push the butt of the knitting needle 1a in the vertical direction, and on the outside of the sliding body 8, A pin 12 passes through a long hole 13 drilled in the support member 6 and is horizontally pivoted. Furthermore, this contact pin 12
On the outside of the support member 6 near the
4 is rotatably mounted on a support shaft 15,
The one-arm lever 14a of this operating lever 14 and the presser plate 5
A tension spring 16 is tensioned between a and a.
Further, an operating screw 17 is screwed onto the one-arm lever 14a of the operating lever 14 directly above the abutting pin 12 so as to abut against the abutting pin 12. A stitch cam 10 and a cushion cam 11, which are integral with the sliding body 8, are pressed against the elasticity of the coil spring 9 via the pin 12.

On the other hand, the table 2 beside the support member 6
A pushing arm rod 18 is pivotally mounted on a support shaft 19, one arm 18a of this pushing arm rod 18 is in contact with the support member 6, and the other arm 1 of this pushing arm rod 18 is in contact with the supporting member 6.
8b is in contact with the front end of an output screw 21 that is integral with the output shaft 20a of the pulse motor 20 installed on a stationary member. The output screw 21 is screwed onto a screw member 22 attached to the table 2, and a tension spring 23 is stretched between the support member 6 and the table 2. Therefore, when the pulse motor 20 is driven based on a signal from an electronic control circuit into which a knitting program is inputted in advance, the output screw 21 spirals against the tension spring 23, causing the push arm rod 18 to move forward. It is adapted to push the other arm 18b.

On the other hand, the table 2 beside the support member 6
A bracket 25 having an indicator 24 is installed on the push plate 5b, which is integral with the push plate 5b.
is rotatably mounted so as to push the other arm rod 14b of the operating lever 14, and the adjusting screw rod 27 can be adjusted by loosening the tightening screw rod 28 screwed onto the bracket 25. Fine adjustment can be made by aligning the indicator 24 with the scale 26. As shown in FIG. 2, a cover member 30 with a push screw 29 screwed thereon is provided on the upper part of the support member 6.
9 presses the stitch cam 10 to prevent it from floating.

Therefore, when adjusting the position of the stitch cam in the sock knitting machine, if the pulse motor 20 is driven in advance based on a signal from the electronic control circuit into which the knitting program is input, the pulse motor 20 The output screw rod 21 integrated with the output shaft 20a of the output shaft 20a spirally advances to push the push arm rod 18 around the support shaft 19 against the elasticity of the tension spring 23. Then, the other arm 18b of the pushing arm rod 18 pushes the support member 6, so the slide member 4, which is integral with the support member 6, slides to the left in FIG. 1 along the ring groove 3. Therefore, when the stitch cam 10 held by the support member 6 also moves to the left, the tip of the adjustment screw 27 simultaneously pushes the other arm 14b of the operating lever 14, so that the operating lever 14 is moved to the left. Rotate to the left around axis 15. Then,
The abutment pin 12 floats due to the elastic force of the coil spring 9, and thereby the stitch cam 10 and cushion cam 11 integrated with the slide member 8
lift upwards. That is, the above-mentioned operation is the fourth
As shown in the vector diagram in Figure A, the stitch cam 10 and cushion cam 11 are moved obliquely upward.

As a result, the lowering start position of the knitting needle is not displaced with respect to the axial direction of the knitting needle, and the correlation angle between the knitting needle and the loop yarn is kept constant, making it possible to perform normal plate knitting. can.

Note that the above-mentioned reverse operation is performed by the stitch cam 10 as shown in the vector diagram of FIG. 4B.
This means that the cushion cam 11 is moved diagonally downward.

Next, when the yarn material and count (thickness of cotton yarn) used in each sock knitting machine are changed, and in addition, when adjusting for minute fluctuations in the plate knitting, Figures 1, 3, and As shown in FIG. 5, the tightening screw 28 is
After loosening, when the indicator 24 is aligned with the predetermined position of the scale 26, the adjusting screw 27 rotates around the bracket 25, so that the tip of the adjusting screw 27 is aligned with the operating lever 14. Other arm 14b
Finely adjust the contact position. Then, due to this, the position of the support shaft 15 of the operating lever 14 also moves slightly, and the position of the abutment pin 12 also changes slightly, so that the abutment pin 12 is integrated with the slide member 8. This causes the stitch cam 10 and cushion cam 11 to move slightly in the diagonal vertical direction.

In this way, the yarn material and count (thickness of cotton yarn) used in each sock knitting machine also change.
Furthermore, it is possible to synchronize even with minute fluctuations in the platen composition.

The indicator 24 is engraved on a part of the bracket 25, and the scale 26 is set on the adjusting screw 2.
Although I explained the specific example attached to 7.
For example, the scale 26 may be freely attached to the bracket 25 without changing the gist of the present invention.

[Effect of idea]

As described above, according to the present invention, the knitting needle cylinder 1 equipped with the knitting needles 1a is vertically fitted into the stationary member so as to be freely rotatable, and the ring groove 3 is inserted into the table 2 provided on the outside of the knitting needle cylinder 1. is formed concentrically with the knitting needle cylinder 1, a slide member 4 is fitted into this ring groove 3 so as not to slip out, a support member 6 is erected on this slide member 4, and a vertical groove is formed in this support member 6. 7 is formed, a sliding body 8 having a floating habit is fitted in this vertical groove 7, a stitch cam 10 etc. is attached to the inside of this sliding body 8, and an abutment pin 12 is attached to the outside of this sliding body 8 as described above. The operating lever 14 is pivotally attached to the support member 6 near the abutment pin 12 through a long hole 13 bored in the member 6, and one arm of the operating lever 14 is pivotally attached to the support member 6 near the abutting pin 12. 14a, an operating screw 17 is screwed into contact with the abutting pin 12, and a pushing arm lever 18 is pivotally mounted to the table 2 beside the support member 6 so as to be pushed by a pulse motor 20, Indicator 2 in table 2 above
A bracket 25 having a scale 26 is mounted on the bracket 25, and a tightening screw 27 is screwed onto the bracket 25 so as to push the other arm 14b of the operating lever 14. At the time of adjustment, the tightening screw 28 is loosened and the indicator 24 is aligned with the predetermined scale 26.
Based on this, the inclination angle of the stitch cam 10 is finely adjusted, so even if there is a change in thread or count, not only can the slack in the loop yarn that occurs during knitting be removed, allowing normal plate knitting. , with the aim of improving quality.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a part of the stitch cam adjustment device in the sock knitting machine of the present invention, FIG. 2 is a front view of the same, and FIGS. 3 to 5 are diagrams for explaining the operation of the present invention. Each figure, FIG. 6 is a side view of the stitch cam adjustment device in a conventional sock knitting machine as seen from the inside, FIG. 7 is a sectional view taken along the chain line A-A in FIG. 6, and FIG. 8 is a conventional It is a figure for explaining the effect|action of an example. 1...knitting needle cylinder, 2...table, 3...
... Ring groove, 4 ... Slide member, 6 ... Support member, 7 ... Vertical groove, 8 ... Sliding body, 10 ... Stitch cam, 12 ... Contact pin, 13 ... Long hole, 14
... Operating lever, 15 ... Support shaft, 18 ... Pushing arm rod, 20 ... Pulse motor, 25 ... Bracket, 26 ... Scale, 27 ... Adjustment screw rod, 28 ...
Tightening screw.

Claims (1)

[Scope of utility model registration request] A knitting needle cylinder equipped with knitting needles is vertically mounted on a stationary member so as to be freely rotatable, a ring groove is formed in a table provided on the outside of the knitting needle cylinder concentrically with the knitting needle cylinder, and the knitting needle cylinder slides into the ring groove. Insert the parts so that they do not fall out,
A support member is erected on this slurry member, a vertical groove is formed in this support member, a sliding body having a floating habit is fitted into this vertical groove, a stitch cam etc. is attached to the inside of this sliding body, and a vertical groove is formed in this support member. An abutment pin is pivotally attached to the outside of the moving body through a long hole drilled in the support member, an operating lever is pivotally attached to the support member near the abutment pin by a support shaft, and the operating lever is An operating screw rod is screwed into one arm so as to abut against the abutment pin, and a pushing arm rod is pivotally mounted to the table beside the support member so as to be pushed by a pulse motor, as shown on the table. A bracket with a marking is installed, and an adjusting screw with a scale is screwed onto this bracket with a tightening screw by pushing the other arm of the operating lever, and when making fine adjustments to the stitch cam, the tightening screw is loosened. A stitch cam adjustment device for a sock knitting machine, characterized in that the stitch cam adjustment device is adapted to adjust the stitch cam so that the indicator matches the predetermined scale.