JPH0984977A - Linking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely perform a transfer operation from a needle to the needle by arranging a guiding member for controlling the position of the needle by being in contact with the side face of the needle moved to a transfer position at least on the side of one needle. SOLUTION: The needle 22a and the needle 22b are moved from a needle sticking position B to the transfer position C in the state of being stuck into a stitch and gradually brought closer. They are brought closest at the transfer position C and tip parts are brought into contact. Sewing cloth 12b on the side of a hook up needle sticking device 18b is gradually moved to the side of the hook up needle sticking device 18a by a guide (guiding member) 38 provided on the side of the hook up needle sticking device 18b. Then, it is shifted to the hook up needle sticking device 18a at the transfer position C. The stitch of the needle 22b is transferred to the needle 22a at the transfer position C by the terminating end of the guide 38 accompanying the rotation of a needle rotationally moving device 20.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a linking device for sewing two knitted fabrics.

[0002]

2. Description of the Related Art As one of automatic linking devices for automatically sewing two knitted fabrics, JP-B-3-49477, JP-B-3-49478 and JP-A-7-1243.
There is an apparatus described in Japanese Patent No. 51, etc.

In these automatic linking devices, the position or state of the stitch to be stabbed is detected for each knitted fabric by the detection means, and the knitted fabric guide means determines the knitted fabric position for each knitted fabric based on the detection result. While making corrections, guide the stitches of each knitted fabric to the needle pricking position, pierce the needles of each needle row into the knitting fabric of the corresponding knitting fabric at the needle pricking position, and bring the needles of both needle rows closer to each other in sequence. At the transfer position, the stitches of the knitted fabric are transferred to the needles of the other needle row by stitching, and the two knitted fabrics stabbed by the same needle are sewn together at the sewing position by a sewing machine.

In the above automatic linking device, the knitted fabric guide means detects the end of the knitted fabric by the knitted fabric edge sensor, and based on the detection result, the coarse adjustment means guides and corrects the knitted fabric, and the guide is corrected. The state of the knitted fabric is picked up by a television camera, the position information of the stitch is calculated by the image processing device based on the output, and the stitch is guided to the needle stick position by the fine adjustment means based on the calculated position information.

However, in the above-mentioned linking device, even if the needles of both needle rows move to the transfer position, the rattling of the needles due to the processing accuracy, the bending of the needles due to the tension acting on the knitted fabric, etc. As a result, the tips of the two needles do not accurately face each other at the transfer position, and a gap having a size that causes the knitting yarn to drop during the transfer is often formed between the tips of both needles. If such a gap is formed between both needles at the transfer position, the transfer is not performed, and the stitch is likely to drop and fray after sewing. These blind spots and frays reduce the quality of the product.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to ensure a transfer operation from a needle of one needle row to a needle of the other needle row.

[0007]

According to the present invention, needles of two sets of needle rows, each having a plurality of needles pierced in a stitch, are brought closer to each other in sequence, and the stitches of the knitted fabric of one needle row are made into the other needle. In a linking device for transferring two knitted fabrics transferred to a row and stabbed in the other needle row, a guide member for contacting at least the side surface of the needle moved to the transfer position and regulating the position of the needle is provided. It is characterized in that it is arranged on the side of at least one needle row.

The needles of both needle rows are brought close to each other in a one-to-one shape at the transfer position where the transfer is performed. The positions of the needles in at least one of the needle rows are restricted by the guide member at least at the transfer position, and the displacement due to the bending or rattling of the needles is suppressed. As a result, it is possible to prevent a gap having a size that causes the knitting yarn from dropping between the two needles at the transfer position, and transfer the stitch from the needle of one needle row to the needle of the other needle row. be able to.

Therefore, according to the present invention, even if the needle easily bends or rattles, the formation of a gap having a size that causes the knitting yarn to fall off is suppressed, and the transfer is reliably performed. Therefore, it is possible to surely prevent the quality of the product from being deteriorated due to the transfer failure.

The guide member is provided at least on the side of the needle row having stitches to be transferred, and the guide member is movable in the longitudinal direction of the needle in order to transfer the stitches. preferable. As a result, the guide member functions not only as the needle positioning means but also as the transfer means, so that the number of parts is reduced.

It is preferable that the guide members are arranged on both sides of the needle row. As a result, the displacement due to the bending and rattling of the approached needle is completely suppressed. Therefore, the formation of a gap having a size that causes the knitting yarn to fall off is more reliably suppressed, so that the transfer is performed more reliably, and the quality deterioration of the product due to the transfer failure is more reliably prevented. .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a linking device 10 comprises two body knitting fabrics such as sewing of two body knitted fabrics and sewing of attached knitted fabrics to the body knitting fabrics. Used as a sewing device.

The knitted fabrics 12a and 12b are arranged on the tables 16a and 16b supported by the frame 14, respectively. The linking device 10 includes a pair of needle moving devices or eye picking needle pricking devices 18a, 18b arranged on the frame 14 for picking up stitches to be sewn to each other and piercing a point needle through the stitches.

The eye pick-up needle puncturing devices 18a and 18b are
A plurality of point needles 22a and 22b are attached to an annular needle holder or needle rotation moving device 20, which is rotatably supported on the frame 14 about an axis extending in the horizontal direction.
Are arranged at intervals in the circumferential direction. Each needle rotation moving device 20 is provided with a drum having a plurality of holes formed at intervals in the circumferential direction, and each point needle penetrates through the hole of the drum of the corresponding needle rotation moving device 20 to rotate the needle. It extends in the radial direction of the moving device 20. Each needle rotation moving device 20
Are rotated in synchronization with each other in the direction of arrow A, whereby the series of needles 22a, 22b are moved to the corresponding needle rotation moving device 20.
Are simultaneously rotated in the circumferential direction.

A needle reciprocating device 24 is immovably arranged inside each needle rotation moving device 20. The needle reciprocating device 24 sequentially engages with the corresponding series of needles 22a and 22b as the corresponding needle rotation moving device 20 rotates, and moves the corresponding needles 22a and 22b in the longitudinal direction thereof. That is, it is composed of a needle reciprocating cam. Therefore, each point needle is connected to the needle rotation moving device 2
Along with the rotation of 0, while the needle is being rotatably moved from the needle puncturing position B, which is pierced into the stitch, to the needle puncturing position B, through the stitch transfer position C, which is to transfer the stitch of the needle 22b to the needle 22a. The rotary moving device 20 is reciprocally moved in the radial direction. The position E is a stitching position where the two knitted fabrics 12a and 12b are sewn together.

The linking device 10 also includes a needle 22a,
It includes a pair of knitted fabric guide means, that is, a knitted fabric guide device, for guiding the knitted fabric to correct the position of the stitch with respect to 22b. Each knitted fabric guide device corresponds to each knitted fabric, and the position of the stitch is corrected by moving the corresponding knitted fabric in the direction perpendicular to the moving direction.

Each knitted fabric guide device detects the end of the corresponding knitted fabric by the knitted fabric end sensor 26, and based on the detection result, guides the corresponding knitted fabric by the coarse adjustment mechanism 28 to correct its position. The state of the guide-corrected knitted fabric is imaged by the television camera 30, position information of the stitches is calculated by the common image processing device 46 based on the output, and the fine adjustment mechanism 32 of the stitches is calculated based on the calculated position information. To guide to the needle stick position B. In the illustrated example, each coarse adjustment mechanism 28 and each fine adjustment mechanism 32 rotate to move the knitted fabric to the needle stick position B, and move in the direction of the rotation axis to move the knitted fabric in a direction perpendicular to the moving direction. It has one or more rollers for moving the knitted fabric, but instead of the rollers, another mechanism such as one or more hands for exerting a force for moving the knitted fabric in the moving direction and the direction of the moving direction and the angle on the knitted fabric is used. Good.

In the linking device 10, the needles 22a and 22b which have been rotated and moved to the needle sticking position B are disengaged from the needle reciprocating device 24 and lowered by their own weight (rotation of the needle rotating and moving device 20). Has been retracted to the side of the axis).

The needles 22a and 22b at the needle sticking position B are pierced through the stitches while being moved radially outward of the needle rotation moving device 20 by the needle driving device 36 arranged at the needle sticking position B. The needles 22a and 22b pierced in the stitch are
When the needle rotation moving device 20 is rotated in the direction of arrow A, the needle reciprocating moving device 24 is engaged. The knitted fabrics 12a and 12b are rotated by the needle rotation moving device 20.
The needles 22a are provided along the outer peripheral surface of the needle rotation moving device 20, respectively.
And 22b in the same direction (downstream).

While the stitches of each knitted fabric are moved to the needle stab position B, each sensor 26 detects the end of the knitted fabric, and the coarse adjustment mechanism 28.
Guides the knitted fabric to a predetermined position based on the detection signal from the corresponding sensor 26 and corrects the position, and the television camera 30 photographs the state of the guide-corrected knitted fabric, and the image processing device 46
Calculates position information of the stitch based on the image signal output from the television camera 30, and the fine adjustment mechanism 32 causes the image processing device 4 to operate.
The stitch is guided to the needle stick position B based on the position information calculated in 6. As a result, the stitches to be sewn are sequentially guided to the needle sticking position B.

The needles 22a and 22b are provided with a needle reciprocating device 24.
Is gradually lowered while being rotated toward the needle sticking position B, removed from the needle reciprocating device 24 immediately before the needle sticking position B, and at the needle sticking position B, the needle driving device 36.
Is moved radially outward of the needle rotation moving device 20. As a result, the needles 22a and 22b are pierced through the stitch moved to the needle puncturing position B.

The needles 22a and 22b pierced through the stitch are
Further, with the rotation of the needle rotation moving device 20, it is engaged with the needle reciprocating moving device 24, is kept in a state of being pierced through the stitch, and is moved from the needle puncturing position B to the transfer position C.

The needles 22a and 22b gradually approach each other while being moved from the needle sticking position B toward the transfer position C while being pierced in the stitch, and at the transfer position C, they are closest to each other and the tip ends The parts are contacted. Eye-picking needle stick device 18
The knitted fabric 12b on the side b is guided by the guide 38 arranged on the side of the eye pick-up needle sticking device 18b, and the eye pick-up needle sticking device 18a is
Is gradually moved to the side, and is moved to the eye pick-up needle sticking device 18a at the transfer position C.

This step is performed by transferring the stitches of the needle 22b to the needle 22a at the transfer position C by the end of the guide 38 as the needle rotating / moving device 20 rotates. The stitch transferred to the needle 22a is rotated by the needle rotation moving device 20, and the stitch for needle pricking device 18
The guide 40 arranged on the a side moves the needle 22a to the base side, and at the position D, the eye-picking needle sticking device 1
It is completely overlaid on the knitted fabric 12a which was originally arranged on 8a.

Of the two knitted fabrics 12a and 12b piled up in the eye pick-up needle puncturing device 18a, the stitch pierced by the same needle 22a is positioned from the transfer position C while piercing the same needle 22a. Is moved to the suture position E via D,
At the suturing position E, a suturing device 42 such as a sewing machine disposed there is sutured. As a result, the two knitted fabrics 12a and 12b are sewn together. The stitch to be actually stitched at the stitching position E is preferably the stitch that has been pierced by the needle 22a, but may be another stitch, for example, the stitch closest to the stitch that has been pierced by the needle 22a.

The stitched knitted fabrics 12a and 12b are separated from the needle 22a at the position F by the guide 44 or a pair of pulling rollers (not shown), and are accommodated in the accommodating box 46 arranged at the position F. Eye-picking needle stick device 18
The needles 22a and 22b of a and 18b are moved toward the needle stick position B with the rotation of the needle rotation moving device 20 thereafter, and are gradually retracted by the needle reciprocating device 24, and the needle reciprocates immediately before the needle stick position B. It is removed from the moving device 24.

In the linking device 10, the eye pick-up needle puncturing devices 18a and 18b, the needle rotation moving device 20, the rough adjusting mechanism 28 and the fine adjusting mechanism 34 of the knitted fabric guiding device, the needle driving device 36, the suturing device 42, etc. Based on the output signals of the sensor 26 and the image processing device 46, the detection signal of a position sensor (not shown), and the like, the control device 48 performs synchronous control.

In the linking device 10, the guide 38
A guide 50 similar to the above may be picked up and arranged on the side of the needle sticking device 18a. Further, the end of the guide 38 and the start of the guide 40 may be continuous.

As shown in FIG. 2 (A) for the one needle 22b, the needle 22b (or 22a) is warped due to the tension applied to the knitted fabric or the processing accuracy. Then, the needle 22b (or 22a) is displaced from its correct position indicated by the solid line by L1 and L2 on both sides thereof. When such a displacement occurs in both needles that are close to each other in needle stick position, the tips of the two needles do not accurately face each other at the transfer position C, and a gap having a size that causes the knitting yarn to drop is formed in both needle rows. Formed between the tips of the needles. In such a case,
Transferring is not performed, resulting in poor product quality after sewing,
Eye drops and fraying are likely to occur.

In order to solve the above problems, the guide 38
Not only acts as a stitch transfer means for moving the stitch from one needle to the other needle as described above, but also the position of the needle of the eye pick-up needle sticking device 18b, particularly the position in the direction of the rotation axis of the needle rotation moving device 20. Also acts as a guide member or positioning means for stabilizing. A guide 50 acting as a similar positioning means is arranged on the pick-up needle sticking device 18a side.

The guide members or guides 38 and 50 contact one side of the needle 22b (or 22a) at least at the needle stick position, as shown in FIGS. 2 (B) and 2 (C). The needle 22b (or 22
It acts as a guide member that regulates the position of a). The guide 38 (or 50), as shown in FIG.
2b (or 22a) is a plate-like member long in the moving direction, and the position of the needle moved to the needle stick position and one or more needles behind the needle moving direction (upstream side of the needle moving direction) with respect to the needle regulate.

The needle 22b (or 22a) has a guide surface 38a (or 5) of the guide 38 (or 50) on one side.
0a) while being moved to receive the guide 38 (or 50) at least at the needle stick position. Guide 3
8 (or 50) of the guide surface 38a (or 50a) has a rear end portion (upstream side in the needle moving direction) that guides each needle 22 to the guide surface 38a.
It is an inclined surface or a curved surface 38b (or 50b) which is deformed so as to be smoothly moved to a (or 50a).

When the guide 38 (or 50) is provided, even if the needle 22b (or 22a) has bending or rattling, as shown in FIG. 2 (B), the needle 22b moved to the needle sticking position. (Or 22a) may be displaced by L1 to one side, but guide 38 to displacement to the other side.
(Or 50) to prevent the formation of a gap between the two needles at the transfer position, which prevents the stitches from dropping from one needle row to the other. Can be transferred to the needle of the needle row.

The guides 38 and 50 can be immovably supported on the frame 12. However, the guide 38
As described above, since it also functions as a transfer means, it is preferable to support the guide 38 on the frame 12 so as to be reciprocally movable in the longitudinal direction of the needle 22b on the side of the eye pick-up needle sticking device 18b. In this case, the guide 38 reciprocates in synchronization with the rotation of the needle rotation moving device 20. That is, every time the needle rotation moving device 20 rotates by one pitch of the plurality of needles 22b, it is moved to the eye pick-up needle sticking device 18a side by the drive mechanism (not shown) to transfer the stitches, and then the eye pick-up needle sticking device 18b is moved. Be retracted to the side.

The needle 22b (or 22a) should be positioned so that it is positioned on both sides of the needle 22b (or 22a).
It is preferable to provide guides 38 (or 50) on both sides of a). In this way, the needle 22b (or 22a) is provided with two guides 38 provided on both sides.
(Or 50) is moved at the same time while being in contact therewith, so that the position is surely regulated. Therefore, it is possible to more effectively suppress the formation of a gap having a size that causes the stitches to fall off between the two needles, and to secure the stitches from the needles of one needle row to the needles of the other needle row. Can be transferred to.

The guide 38 (or 50) may only regulate the position of one needle moved to the transfer position. Further, the starting end of the guide 40 may be extended to the guide 38 side. Alternatively, the transfer may be performed by another member, and the guide 38 may be configured to act only as a positioning means. For example, the guide as the positioning means is configured as shown by 38b shown by the dotted line in FIG. 1, and the transfer means is a plate-like member having a shape like the number 38 in FIG. 1 (however, it does not come into contact with the needle 22b). It is assumed that they are spaced apart from each other).

In the linking device 10, it is also necessary to more reliably prevent the formation of a gap between the two needles moved to the transfer position C, which is large enough to cause the stitches to drop from the needles. When both needles of the eye pick-up needle puncturing devices 18a, 18b are brought close to each other at the transfer position C, the tips of both needles overlap so as to allow the knitted fabric to move from one needle row to the other needle row. It has a part at the tip of both needles.

3 (A) and 3 (B), guides 50 and 38 are provided on one side of the needles 60a and 60b, respectively, and flat surfaces 62a and 62b formed at the tips of the needles 60 and 60b are shown. The example which overlaps is shown. The tips of both needles are tapered so that the tips become smaller toward the tips. The surfaces 62a and 62b are inclined surfaces at the tips of the corresponding needles and are inclined with respect to the axis of the corresponding ends, and also contact each other when the needles are approached. Moreover, the positions of the needles 60a and 60b in the direction of the rotation axis of the needle rotation moving device 20 are regulated by the guides 50 and 60, respectively, so that the surfaces 62a and 62b surely contact each other.

Therefore, according to the needles 60a and 60b, both needles overlap each other in the length range corresponding to the contacting portions of the inclined surfaces 62a and 62b at the tip end portions thereof. Therefore, the stitches 64a of one needle 60a or 60b or 64b is surely transferred to the other needle 60b or 60a, and as a result, the quality deterioration of the product due to the transfer failure is surely prevented.

According to the needles 60a and 60b, since the inclined surfaces 62a and 62b are in contact with each other when both needles are close to each other,
Even if the force that moves the needle 60a to the right or upward in FIG. 3A acts on the needle 60a, or the force that moves the needle 60b to the left or downward in FIG.
Even if it acts on 0b, both inclined surfaces are only approached or pressed, and the tip ends of both needles are not displaced. Also,
The tips of the needle 60a and the needle 60b are respectively shown in FIG.
At 60a and faces 60b and 6 of needle 60a
It is located in the center of 2a. Therefore, there is a distance K from the tip of the needle 60a and the tip of the needle 60b to both side ends of the surfaces 60b and 60, respectively. Hence,
In the vertical direction of FIG. 3'B), in other words, the needle 60a,
No gap is formed at the tip portions of both needles unless a relative movement of a distance exceeding the distance K occurs in the juxtaposed direction of 60b, and as a result, a gap is formed at the tip portions of both needles. It is possible to more reliably prevent this, and it is possible to surely prevent the quality deterioration of the product due to the transfer failure.

4A, 4B and 4C show the needle 6
By providing guides 50 and 38 for both 6a and 66b on one side of the needle, respectively, and receiving the tips of the needles 66a in the recesses 68 formed in the tips of the needles 66b, the tips of the needles 66a and 66b are fixed. The example which overlaps is shown. The recess 68 is formed from the tip of the needle 66b to the needle 6
6b is a notch extending in the axial direction and has a V-shaped cross section. The tip portion of the needle 66a is formed in a taper shape that becomes smaller toward the tip. When the needles 66a and 66b approach each other, the tip of the needle 66a is received in the recess 68 of the needle 66b. Moreover, the needles 66a and 66b are attached to the guide 5
The positions of the needle rotation moving device 20 in the direction of the rotation axis are regulated by 0 and 38, so that the above-mentioned receiving is surely performed. In the embodiment shown in FIGS. 4 and 4, it is preferable to provide guides 38 or 50 on both sides of the needle in order to more accurately position the needle.

According to the needles 66a and 66b, when the needles 66a and 66b are approached, the needles 66a overlap at their tips over a length range corresponding to the portion of the needle 66b received in the recess 68. , One needle 66a or 66b
Stitch 64a or 64b of the other needle 66b or 66 of the other
As a result, it is possible to surely prevent the deterioration of the product quality due to the transfer failure.

According to the needles 66a and 66b, when both needles are brought close to each other, both needles engage with each other at their tip portions, so that the needle 66a is moved to the right, upward or downward in FIG. 4 (A). Even if force (the vertical direction corresponds to the direction in which the needles are arranged side by side) acts on the needle 66a,
In (A), even if a force to move the needle 66b to the left, upward or downward acts on the needle 66b, only the tip of the needle 66a abuts on the surface defining the recess 68 of the needle 66b. No misalignment of the needle tip. As a result, it is possible to more reliably prevent a gap from being formed at the tip portions of both needles, and it is possible to reliably prevent the quality of the product from deteriorating due to defective transfer.

In the embodiment shown in FIGS. 5 (A) and 5 (B), the overlapping portion of the point needles is the tip portion of the needle 70a and the tip portion of the needle 70a when both the point needles 70a and 70b are approached. To define a recess 72 formed at the tip of the needle 70b. Needle 70b
Has a tubular shape at least at its tip and is notched along the inclined surface intersecting the axis of the needle 70b. Therefore, the recess 72 is a hollow portion at the tip of the needle 70b. The tip of the needle 70a is formed in a taper shape that becomes smaller toward the tip.

Therefore, according to the needles 70a and 70b, when the needles 70a and 70b are approached to each other, the needles 70a and 70b are attached at their tip portions over a length range corresponding to the portion of the needle 70b received in the recess 72. Since the stitches 64b overlap, the stitches 64b of the one needle 70b are surely transferred to the other needle 70a, and as a result, the quality deterioration of the product due to the transfer failure is surely prevented. Of course, guides 50 and 38 are provided on both sides of the needles 70a and 70b, respectively.

According to the needles 70a and 70b, both needles are engaged with each other at their tip portions when both needles are brought close to each other, so that the needle 70a is moved to the right, upward or downward in FIG. 5 (A). Even if the force for moving acts on the needle 70a or the force for moving the needle 70b leftward, upward or downward in FIG. 5A acts on the needle 70b, the needle 70a
The tips of the needles are only approached or pressed against the portion defining the recess 72 of the needle 70b, and the tips of the needles are not displaced. Therefore, when both needles approach each other, a gap is not formed at the tips of both needles unless a relative movement of a size large enough to cancel the overlapping portion of both needles occurs.
As a result, it is possible to more reliably prevent a gap from being formed at the tip portions of both needles, and it is possible to reliably prevent the quality of the product from deteriorating due to defective transfer.

In the embodiment shown in FIGS. 6 (A) and 6 (B), the overlapping portions of the point needles are the tip portions of the point needles 74a, 74b formed in the form of a phase cut joint.
The tips of the needles 74a and 74b have projections 76a and 7
6b and has a symmetrical inclined surface which is stepped and intersects the axis of the needle. The tips of the needles 74a and 74b are formed in a taper shape that becomes smaller toward the tips. Needles 74a, 74
b is contacted at the ramp so that when approached, the protrusions 76a, 76b engage. Incidentally. Guide 3
Although not shown, 8 and 50 are provided similarly to the embodiment shown in FIG.

Therefore, according to the needles 74a and 74b, when the both needles 74a and 74b are approached, both needles overlap each other at their distal end portions over the length range corresponding to the inclined surface. The stitch 64a or 64b of 74b is securely transferred to the other needle 74b or 74a,
As a result, it is possible to reliably prevent the quality of the product from being deteriorated due to the transfer failure.

According to the needles 74a and 74b, both needles are engaged with each other at their tip portions when both needles are close to each other. Therefore, the needle 70a is moved to the left, right or upper side in FIG. 6 (A). Even if the force that moves the needle 74a acts on the needle 74a, or the force that moves the needle 74b leftward, rightward, or downward in FIG.
Only the inclined surfaces or the protrusions of a are approached or pressed against each other, and no displacement occurs at the tips of both needles. At this time, even if the force that moves the needles 74a and 74b upward or downward in FIG. 6B, in other words, the force that moves the needles in the juxtaposed direction acts on the needles, the protrusions 76a and 76b are engaged with each other. As a result, the tips of both needles are not displaced. As a result, it is possible to more reliably prevent a gap from being formed at the tip portions of both needles, and it is possible to reliably prevent the quality of the product from deteriorating due to defective transfer.

When the needles are brought close to each other in the transfer position, a gap is generated between the tips of the needles, and the needles of two sets of needle rows are almost not angled to each other as in the linking device 10 described above. It occurs not only in a device for approaching in parallel state, but also in another linking device such as a device for approaching the needles of two sets of needle rows at an angle.

The linking device 100 shown in FIGS.
Is used as a device for sandwiching the band-shaped or annular edge of the knitted fabric 102a, which is the body knitting, with the band-shaped or ring-shaped knitted fabric 102b, which is the auxiliary knitting, and suturing. The linking device 100 includes a pair of eye-catching needle pricking devices 104a and 104b that pick up the stitches to be sewn together and pierce the stitches with a point needle.

Needle moving device or eye-picking needle sticking device 10
4a and 104b are point needles 106a and 106b.
So that the reciprocating directions of the needles are almost orthogonal to each other.
06a and 106b are arranged in a circle, that is, juxtaposed. The needle rows of the eye pick-up needle sticking devices 104a and 104b are held by the drums 200 and 202 of the needle rotation moving device 20, respectively, as shown in FIGS. And 202 are rotatable. The drum 200 is integrally formed on the front surface of the drum 202. A first needle stick position B1 and a third needle stick position B3 are set on the movement path of the needle 106a of the eye pick-up needle stick device 104a. A second needle stick position B2 is set on the movement path of the needle 106b of the eye pick-up needle stick device 104b.

The needle 106a is moved between the first needle stick position B1 and the third needle stick position B3 by a groove cam 210 as a needle reciprocating device described later and a needle drive member 222 as a needle drive device for needle stick. It is divided into two parts and is projected in two steps. After passing through the suture position E, it returns to the original position.
The drum 200 has a fixed frame 2 as shown in FIG.
04 is rotatably supported by a hollow shaft 206 via a bearing 208 and a groove cam 210, and is rotationally moved in the A direction at a predetermined speed by a motor 212 and gears 214 and 216. A plurality of grooves 218 extending in the radial direction of the drum 200 are formed at equal pitches in the circumferential direction. The needle 106a is slidable inside the drum 200 in the radial direction of the drum 200 so as to slide in the groove 21.
8 and is driven or reciprocated by the fixed guide 220 in the radial direction of the drum 200, that is, in the needle advancing / retreating direction with the rotation of the drum 200.

The fixed guide 220 is located at the first needle stick position B.
The needle 106a projected at 1
After further protruding at 3 and passing through the suture position E, the needle 10
6a is retracted. Long needle driving member 22 of needle driving device
No. 2 is swingably supported by a fulcrum pin 224 at a fixed position in order to project the needle 106a at the first needle sticking position B1, and is also connected to a crank pin 228 by a crank rod 226.

The drive shaft 230 is rotatably supported by the hollow shaft 206, the motor 232 and the gear 23.
It is rotated by 4, 236. Needle 106 retracted
When a reaches the first needle stick position B1 as the drum 200 rotates, the needle drive member 222 moves the position B1.
The needle 106a that has reached the position is moved up so that the needle 106a is pierced through the knitted fabric 102b.

Needle 106b of the eye pick-up needle sticking device 104b
10, is held by the drum 202 so as to be movable back and forth in the axial direction of the drum 202, and is rotatably received by a groove cam 210 fixed to the frame 204. 214,216
Thus, the drums 200 and 202 are rotationally moved in the feed direction A at a predetermined speed.

Although not shown, the linking device 10
0 is similar to the linking device 10 shown in FIG. 1, and is the first, second, and third needle piercing positions B1, B2, and B3 provided for guiding the knitted fabric to correct the position of the stitch. It is an automatic linking device including the knitted fabric guide device of No. 3.
The first knitted fabric guide device guides one of the two edges of the knitted fabric 102b to be sewn to the first needle sticking position B1, and the second knitted fabric guide device guides the two edges of the knitted fabric 102b to be sewn. The other part is guided to the second needle pricking position B2, and the third knitted fabric guide device guides the knitted fabric 102a to the third needle pricking position B3.
Each knitted fabric guide device includes a knitted fabric end sensor 26, a coarse adjustment mechanism 28, a television camera 30, a fine adjustment mechanism 32, and the like, as in the embodiment of FIG. The image processing device is commonly used by all knitted fabric guide devices.

The knitted fabric 102a is wound around the cover 108 and the feed roller 110 so that the edge portion on the side to be sewn becomes the cylindrical cover 108, and the feed roller 110 and the pressing roller 112 are joined together. It is rotated and moved by the cooperation and the rotation of the needle rotation moving device 20. On the other hand, the knitted fabric 102b has the eye-catching needle pricking devices 104a and 104b.
It is wound around the both-needle rotation moving device 20 of a and the feed roller 110, and the feed roller 110 and the press roller 1
It is moved by the joint action with 12 and the rotation of the double needle rotation moving device 20. The feed roller 110 and the both-needle rotation moving device 20 are rotated in synchronization.

In the linking device 100, the knitted fabric 10
2b is bent into an L-shape by an L-shaped guide 114, and in that state, one edge is first moved by the first knitted fabric guide device as the needle rotation moving device 20 rotates. Is guided to the second needle sticking position B1 while the other edge portion is guided to the second needle sticking position B2 by the second knitted fabric guide device. The vertical wall portion of the guide 114 extends to the second needle stick position B2 as shown in FIGS. 7 and 8.
As shown in FIG. 8, the horizontal plate portion of the guide 114 has a narrow width from the first needle stick position B1 and is located between the needle row on the eye pick-up needle stick device 104a side and the drum 202. It extends from the first needle stick position B1 in the circumferential direction of the drum 200 by a half or more.

The knitted fabric 102b is pierced with the needle 106a of the eye pick-up needle pricking device 104a into the knitting on one edge at the first needle pricking position B1, and at the second needle pricking position B2, the needle 106b of the eye-catching needle pricking device 104b. Of the needle 106 that has been pierced through the stitch on the other edge
It is moved toward the third needle stick position B3 together with a and 106b. The needle 106a is pierced through the knitted fabric on one edge of the knitted fabric 102b, and then is moved to the position immediately before the third needle piercing position B3 while being inside the arc-shaped guide 116 together with one edge of the knitted fabric 102b. Pass through.

The knitted fabric 102a has its first and third needle stick positions B1 at the edges to be sewn by the third knitted fabric guide device.
While being overlapped with the outside of the guide 116 between B3, it is guided to the third needle stick position B3. The guide 116 ends immediately before the third needle stick position B3. For this reason,
The knitted fabric 102a is gradually overlapped with one edge of the knitted fabric 104b at the third needle sticking position B3, where the needle 106 is placed.
a is further projected and pierced through the stitch. As a result, the needle 106a has the stitches of the knitted fabric 102a and the knitted fabric 102b.
Is pierced with the stitches on one edge.

Due to the further protrusion of the needle 106a, the needles 106a and 106b of the eye-picking needle pricking devices 104a and 104b.
Are approached at the third needle stick position B3, and the tip ends thereof are abutted. Upon starting the operation of the linking device 100, the first needle stick performed at the first, second and third needle stick positions B1, B2 and B3 may be performed manually or automatically.

In the knitted fabric 102b, while the stitches pierced by the needle 106b move from the third needle piercing position B3 to the transfer position C downstream of the third needle piercing position B3,
The edge part that is pierced with b is guided by the guide 118 to the needle 106a.
Is displaced toward the tip of. The stitch pierced by the needle 106b is rotated by the rotation of the needle rotation moving device 20.
At the transfer position C, the guide 118 transfers to the needle 106a. The guide 118 extends in the juxtaposed direction of the needles 106b, that is, the arrangement direction, and gradually extends from the rear end of the needle 106b to the distal end (base end side) along the moving direction of the needles.
It has a guide surface toward.

The knitted fabric 102b is displaced to the rear end side of the needle 106a by the guide 120 in accordance with the rotation of the needle rotation moving device 20, and the other edge is overlapped on the outer side of the knitted fabric 102a. Moved to suture position E, and suture position E
Is sutured by the suturing device 42. Guide 120
Extend in the juxtaposed direction of the needles 106a, and
Has a guide surface extending from the front end to the rear end of the needle 106a along the moving direction of the. The guide surface of the guide 120 is provided so as to be continuous with the guide surface of the guide 118.

The needles 106a and 106b are gradually retracted after the needle 106a has passed the suture position E as the needle rotation moving device 20 rotates. Sewn knitted fabric 102a,
102b is attracted to the feed roller 110 side by the rotation of the needle rotation moving device 20 and the joint action of the feed roller 110 and the pressing roller 112, and the intermediate position F is reached.
At, the stitch is completely removed from the needle 106.

Also in the linking device 100, at the transfer position C, the eye pick-up needle stick devices 104a and 104b.
In order to prevent a gap from being formed between the needles 106a, 106b of the two needles 106a, 106b, the tips of both needles 106a, 106b are overlapped so as to allow the knitted fabric to move from one needle row to the other needle row. It has at the tip of 106b.

As shown in FIGS. 7 and 9, also in the linking device 100, one or more guide members, that is, the guides 50 serve as positioning means for regulating the position of the needle 106a on the eye picking needle sticking device 104a side. One or more guide members or guides 38 are arranged on the side of the device 104a and on the side of the needle pricking device 104b as positioning means for regulating the position of the needle 106b on the side of the eye pricking device 104b. There is.

As a result, even in the linking device 100, even if the needles 106a and 106b have bending or rattling, the displacement caused by them is blocked by the guides 50 and 38, and the knitting yarn falls off. It is possible to suppress the formation of a gap having such a size between both needles at the transfer position, and it is possible to transfer the stitch from the needle of one needle row to the needle of the other needle row.

Guide 3 on the side of the eye pick-up needle sticking device 104b
8 may act only as positioning means, or may act as both positioning means and transfer means. In the latter case, the guide 38 is used instead of the guide 118 or the guide 118 is used instead of the guide 38.

At the transfer position C, the tips of both needles 106a and 106b are moved from one needle row to the other needle row so that no gap is formed between the needles 106a and 106b of the eye pick-up needle sticking devices 104a and 104b. The needles 106a and 106 have overlapping portions at the tips of the needles 106a and 106 to allow movement of the knitted fabric.

In the embodiment shown in FIG. 13, the overlapping portion of the point needle is the tip of the needle 130a and the tip of the needle 130b for receiving the tip of the needle 130a when both the point needles 130a and 130b are approached. And a portion that defines a recess 132 formed in the portion. The recess 132 is
It is a notch that extends in the axial direction of the needle 130b from the tip of the needle 130b, and has a V-shaped cross-sectional shape. Needle 13
0a is tapered so that the tip of the needle 130a becomes smaller toward the tip. Needle 130a extends downward substantially perpendicular to the axis of needle 130b when it approaches needle 130b. Although not shown, guides 50 and 38 are provided on one side of the needles 130a and 130b, respectively.

In the embodiment shown in FIG. 14, the point needle overlaps with the tip of the needle 134a and the tip of the needle 134b to receive the tip of the needle 134a when both the point needles 134a and 134b are approached. And a portion that defines a recess 136 formed in the portion. The recess 136 is
The tip of the needle 134b is a notch that extends in the diameter direction of the needle 134b, and has a V-shaped cross section. Needle 134
The needle a is formed in a tapered shape such that the tip of the needle a becomes smaller toward the tip. Needle 134a extends downward substantially perpendicular to the axis of needle 134b when it is brought closer to needle 134b. Although not shown, the needles 134a, 1a
Guides 50 and 38 are provided on one side of 34b as in the embodiment shown in FIG.

Needles 130a, 130b and 134a, 1
According to 34b, when both needles are approached, needles 130a,
134a is the recess 132, 136 of the needles 130b, 134b.
Since both needles overlap at their tips over the length range corresponding to the part received by the needle, the stitches of one needle are reliably transferred to the other needle, resulting in poor product quality due to transfer defects. Is reliably prevented.

Needles 130a, 130b and 134a, 1
According to 34b, both needles are engaged at their distal ends when both needles are approached, and therefore, when both needles are approached, the overlapping portion of both needles is canceled out. Unless relative movement of magnitude occurs on both hands,
For example, rattling causes needles 130a and 134a to move downward in FIGS. 13 and 14 respectively to offset the overlapping portions of both needles, so that no gap is formed at the tips of both needles, resulting in It is possible to more reliably prevent a gap from being formed at the tip portion, and it is possible to reliably prevent deterioration of product quality due to transfer defects.

The present invention is preferably applied to the automatic linking device as in the above-mentioned embodiment, but is provided corresponding to each of two sets of needle rows each having a plurality of needles pierced in the stitch. The knitted fabric guide device detects the knitted fabric, corrects the position of the knitted fabric based on the detection result, guides the knitted fabric to the needle pricking position, and causes the needles of both needle rows to approach each other in sequence. The present invention can be applied to other linking devices such as a linking device that transfers the knitted fabric of the needle row to the other needle row and sew two knitted fabrics pierced by the other needle row. In this case, the knitted fabric guide device may include only the coarse adjustment mechanism in the above-described embodiment, may include only the fine adjustment mechanism, and further includes both the coarse adjustment mechanism and the fine adjustment mechanism. May be.

Further, the cross-sectional shape of the needle can be any shape such as a quadrangle, a polygon more than that, and a circle.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of a linking device of the present invention.

2A and 2B are views for explaining the relationship between a needle and a guide for suppressing the rattling, wherein FIG. 2A is a diagram showing the rattling of the needle, and FIGS. 2B and 2C. FIG. 6 is a diagram showing a relationship between a needle and a guide.

FIG. 3 is a view showing a first embodiment of the tip portion of the needle,
3A is a plan view and FIG. 3B is a front view.

FIG. 4 is a view showing a second embodiment of the tip of the needle,
4A is a plan view, FIG. 4B is a front view, and FIG.
FIG. 6 is an end view of a needle having a recess.

FIG. 5 is a view showing a third embodiment of the tip portion of the needle,
FIG. 5 (A) is a front view in which a needle having a recess is sectioned, and FIG.
(B) is a bottom view.

FIG. 6 is a view showing a fourth embodiment of the tip portion of the needle,
FIG. 6 (A) is a front view in which a needle having a recess is sectioned, and FIG.
(B) is a bottom view.

FIG. 7 is a schematic front view showing another embodiment of the linking device of the present invention.

8 is a schematic plan view of the linking device of FIG. 7.

9 is a schematic side view of the linking device of FIG. 7.

10 is a sectional view of a driving portion of one needle in the linking device of FIG.

11 is a front view of a cam portion that moves one needle in the linking device of FIG. 7. FIG.

12 is a sectional view of a driving portion of the other needle in the linking device of FIG.

13 is a diagram showing an example of a tip portion of a needle used in the linking device of FIG. 7. FIG.

14 is a view showing another embodiment of the tip portion of the needle used in the linking device of FIG.

[Explanation of symbols]

10,100 Linking device 12a, 12b, 102a, 102b Knitted fabric 18a, 18b, 104a, 104b Eye picking needle sticking device 20 Needle rotation moving device 22a, 22b Point needle 24 Needle reciprocating device 36 Needle driving device 38, 50 Guide (guide 40) Suturing device B, B1, B2, B3 Needle puncturing position C Transfer position E Suturing position 60a, 60b, 66a, 66b Point needle 70a, 70b, 74a, 74b Point needle 62a, 62b Inclined surface of the tip of the point needle 64, 64b stitches 130a, 130b, 134a, 134b point needle

Claims (3)

[Claims] 1. The needles of two sets of needle rows, each having a plurality of needles pierced in the stitch, are successively brought close to each other to transfer the stitches of the knitted fabric of one needle row to the other needle row, and the other In a linking device for sewing two knitted fabrics stabbed in a needle row of the needle row, at least one needle row side is provided with a guide member that comes into contact with at least a side surface of the needle moved to the transfer position to regulate the position of the needle row. Linking device located at. 2. The guide member is provided at least on the needle row side having stitches to be transferred, and the guide member is movable in the longitudinal direction of the needle to transfer the stitches. The linking device according to claim 1. 3. The linking device according to claim 1, wherein the guide members are arranged on both sides of the needle row.