JP2020182837A - Linking machine provided with guide for properly positioning one collor in knitwear relative to each other - Google Patents

Abstract

To provide an improved linking machine provided with a guide for properly positioning a collar in a knitwear.SOLUTION: A linking machine includes a mobile unit that comprises a needle and comprises a related device for operating the needle in a vertical direction vertical to a warp direction, and a guide 53 configured such that a collar seam line is aligned to a nape seam line of a knitwear and a neck seam line of the knitwear. The guide 53 includes a plate 17 that comprises at least one stopper for the knitwear, which is arranged in a direction substantially parallel to the warp direction so as to be able to arrange the knitwear parallel to the stopper itself, and a fold part that is arranged upstream of the at least one stopper to a conveyance direction of the knitwear on a corner of a plate 17. The fold part aids in widening an end part of the nape to which the collar is connected.SELECTED DRAWING: Figure 14

Description

The present invention relates to an improved linking machine that comprises a guide for correctly positioning one collar to the knitwear relative to each other.

As is known, linking is a process technique used in the textile industry, which consists of joining two elongated pieces of fabric. For example, the technique can be used to join collars, cuffs and sleeves to the rest of clothing, thereby constructing the final product. The elongated pieces are joined by lifting both ends of the fabric for each of the knitwear. The connecting yarn is "woven" between the paths of the ends of the two fabrics, forming the continuity of the knitwear. The connections formed in this way are very flat and virtually imperceptible.

The linking process is a process with many restrictions.

-Slow and expensive. In this case, it is estimated that it takes up more than 70% of the time taken to produce the item.

-Existing linking machines are inflexible and, in fact, require different settings to change the quality of the fabric, resulting in machine installation time that limits productivity.

-Operators responsible for the linking process need a lot of experience and knowledge to minimize errors and achieve a certain speed-the ability they acquire after months of practice.

One of the main problems encountered by those jobs in this area is excessive eye strain as a result of the way the linking process is carried out. If it lasts for a long time, this fatigue leads to a gradual decrease in the operator's eyesight.

For these reasons, the machine is used by designing a linking device that has distinct advantages in terms of speed, cost and accurate performance, as well as the ability to independently place a place for stitching seams. Improve human working conditions, thereby reducing persevering work and preventing accidents at work.

FIG. 1 shows a conventional linking device. This is a circular machine where the operator has to insert the knitwear at the ends of the two fabrics into the pins. The machine then forms a seam stitch in a pre-arranged area of knitwear.

The prior art also includes examples of automatic or semi-automatic linking machines aimed at solving at least some of the aforementioned problems of manual machines.

However, these machines are not exempt from problems that interfere with or limit their proper functioning.

For example, a linking machine capable of spontaneously decoding and making stitches is known from the applicant's patent application.

In either case, a known solution achieves optimizing / automating the linking step of sewing the collar and knitwear, but aligning the collar and knitwear with each other, followed by the sewing step. There is no step that precedes. To date, this placement step has traditionally been performed manually and has all of the above drawbacks.

In order to effectively improve the process of linking one collar and knitwear, the machine needs a device to improve the step of aligning the fabric, which is intended to sew the collar onto the item, upstream of the sewing step. ..

Therefore, it is necessary to overcome the shortcomings and limitations described with reference to the prior art. In particular, it is necessary to create guides that help the operator align the fabrics correctly with each other, in which case the fabrics must be presented on the needles for relative stitching. This procedure correctly and automatically observes the linking procedure of the fabric (knitwear and one collar), thereby aligning the seams to the pieces of fabric that are joined together, ie linked, in real time. Optimized by showing the video camera of the linking machine.

This requires overcoming the disadvantages, and the limitations of the prior art solution are achieved by a linking machine for linking the knitwear and the collar, which was first separated according to claim 1.

Further features and advantages of the present invention will become clearer from the following given description of its preferred, non-limiting embodiments.

The figure of the conventional manual linking machine is shown. A diagram of knitwear in which one collar is joined by linking is shown. A diagram of knitwear in which one collar is joined by linking is shown. A diagram of one collar to be joined to knitwear is shown. A diagram of one collar to be joined to knitwear is shown. A diagram of the seams of one collar and knitwear, and a diagram of the inside of the garment. A diagram of the seams of one collar and knitwear, and a diagram of the inside of the garment. A diagram of the seams of one collar and knitwear, and a diagram of the inside of the garment. FIG. 6 shows a schematic view of a working area under a video camera of a linking machine according to one embodiment of the present invention. After the knitwear, a diagram of the nape or rear of the knitwear is shown. The figure of the right and left shoulder part of the knitwear is shown. The figure of the right and left shoulder part of the knitwear is shown. The figure of the front part of the knitwear which is also called the neck part which shows the overlock is shown. FIG. 6 shows a figure of knitwear with one collar already joined (with and without separate cotton). FIG. 6 shows a figure of knitwear with one collar already joined (with and without separate cotton). The figure of the part of the guide is shown. The figure of the guide plate provided with the stopper for knitwear and the fold part for widening the nape part of knitwear is shown. A diagram of a guide during the process of linking one collar and a diagram of expanding the ridge of knitwear by utilizing the folds on the plate of the guide in particular are shown. Shown is a guide part that acts as a collar stopper to keep it placed under the needle. Shown are guide parts that act as rods to create operator visibility by moving the collar. A diagram is shown to clarify the function of the rod for the visibility of the guide. The figure of the course taken by the collar attached to the guide is shown. Shown is a diagram of a collar and knitwear attached to a guide at the starting point, where the collar and the left shoulder joint of the garment are lined up.

The elements or parts of the elements that the embodiments described below have in common will be indicated by the same reference numerals.

As a whole, reference numeral 100 indicates an overall schematic of a linking machine according to the present invention, with reference to the above figures.

In particular, the present invention relates to a linking machine 100 for linking the knitwear 50 and the collar 51, which were first separated.

In general terms, the linking machine 100 includes a fixed unit 110 having a support frame 120 and a mobile unit 130.

For the purposes of the present invention, the size, shape and / or material of the fixed unit 110 and / or the mobile unit 130 is not important.

The fixing unit 110 includes a device 16 for transporting the knitwear 50 and / or the collar 51 in the longitudinal direction YY.

According to a possible embodiment, the transfer device 16 comprises a belt drive system 16 that carries the knitwear 50 and the collar 51 near the small feet 14 that make up the support base in the true linking step (ie, in the stitching step). The guide 53 is arranged at the start of the belt drive system 16, which is upstream of the transport direction of the knitwear 50 and the collar 51.

The linking machine 100 also comprises the needle 15 equipped with a related device 140 for operating the needle 15 in the vertical direction ZZ, which is perpendicular to the vertical direction YY, to perform the linking process.

According to one embodiment, the linking machine 100 also includes a device 150 that arranges the needles 15 in the horizontal direction XX, which is perpendicular to the vertical direction YY and is in the same plane as the fabric.

According to a possible embodiment, the linking machine comprises a video camera 160 capable of installing a guide thread (not shown) located in at least one area of the fabric of the collar 51 and the knitwear 50 to be sewn, said guide thread. Is inserted inside the fabric to install multiple linked knitwear.

The video camera 160 is programmed to monitor the exact position of the guide threads in the longitudinal direction YY, and in particular the lateral direction XX perpendicular to the longitudinal direction YY and the vertical direction ZZ. Can be done.

According to a possible embodiment, the video camera 160 is operably connected to the device 150 for positioning the needle 15 in order to position the needle 15 laterally based on the information received from the video camera 160. To.

The linking machine 100 advantageously includes a guide 53 designed to align the nape seam line 8 of the knitwear 50 and the neck seam line 10 of the knitwear 50 with the collar seam line 7. The purpose of this arrangement is to facilitate the next linking step performed by the needle 15.

In particular, it is necessary to align the lines of the stitches 8 and 10 of the knitwear 50 and the lines of the linked stitches 7 and 12 of the collar 51.

According to a possible embodiment in which the linking machine 100 includes the video camera 160, the guide 53 has a line of the linked stitches 7 and 12 of the collar 51 or a line of the collar seam under the peephole 13 of the video camera 160 (FIG. 7), preferably, it is designed to end directly at a fixed distance from the end of the knitwear 50 that moves under the collar 51.

According to a possible embodiment, the guide 53 is a knit arranged in a direction substantially parallel to the vertical direction YY so that the knitwear 50 can be arranged in parallel with the stoppers 22 and 23. A plate 17 having at least one stopper 22, 23 for the wear 50 is provided.

The plate 17 preferably includes two stoppers 22 and 23, the first stopper 22 is designed so that the knitwear 50 can be arranged in parallel with the stopper itself, and the second stopper 23 is the knitwear 50. The overlock 11 is designed to ensure that the desired seam line 52 is maintained.

According to one embodiment, the plate 17 comprises a corner fold 21 of the plate 17 located upstream of at least one stopper 22, 23 with respect to the transport direction of the knitwear 50. 21 helps widen the end of the nape 3 to which the collar 51 is joined.

The bent portion 21 is tilted below the opposite side of the at least one stopper 22, 23.

According to one embodiment, the guide 53 comprises a stopper 18 for the collar 51, which substantially points to the longitudinal YY and flattens the extending collar 51 in the lateral XX. It is provided with a flap 24 for maintaining the temperature.

According to one embodiment, the guide 53 includes at least one adjustable tension roller 19 for applying the required tension to the collar 51 and adjusting the position of the collar 51.

The guide 53 preferably includes two tension rollers 19 parallel to each other and parallel to the horizontal direction XX, which is perpendicular to the vertical direction YY and the vertical direction ZZ.

According to another possible embodiment, the guide 53 maintains the movement of the collar 51 in order to create visibility of the knitwear 50 to the operator on the stoppers 22, 23 itself, said at least one stopper 22. A releasable rod 20 arranged in the form of a cantilever near 23, 23.

The rod 20 is arranged in a direction substantially perpendicular to the stoppers 22 and 23.

The functionality of the linking machine according to the present invention will be described here.

As mentioned above, the guide 53 represents an accessory that supports the linking machine and is not particularly exclusive, where the linking machine feeds back with the video camera 150 for placement of the lateral XX linking needle position. It has a controller.

One embodiment of this type of linking machine comprising a video camera with a feedback controller is provided by the applicant in Italian patent application 102018000007417.

The guide 53 described above has an object that aligns the seam line 7 (FIGS. 3.0 and 3.1) of the collar 51 with the following.

-Seam line 8 (FIG. 5) at regular intervals from the nape end 9 on the nape 3 of the knitwear 50.

A seam line 10 (FIG. 6) at regular intervals from the overlock 11 on the neck 4 of the knitwear 50.

Seen from the inside of the knitwear 50, the result of joining the collar 51 to the knitwear 50 is the seam line 52 (FIG. 4).

The fabric is carried by the belt drive system 16. The guide 53 is arranged at the starting point of this drive system (FIG. 14).

The guide 53 can consist of:

-A plate 17 (FIG. 15) comprising stoppers 22 and 23 for the knitwear 50 and a fold 21 to help the operator unfold the end of the nape 3 to which the corner collar 51 is joined.

-Stopper 18 for the collar 51 with flaps 24 for the collar 51 to remain flat (FIG. 17).

-One or two adjustable rollers 19 to apply the required tension to the collar 51 and adjust the position of the collar 51 (FIG. 14).

A releasable rod 20 (FIG. 18) that maintains the movement of the collar 51 to create operator visibility of the stoppers 22 and 23 for the knitwear 50 (FIG. 19).

Driven by the belt 16, the collar 51 moves onto a system of tension rollers 19 and stoppers 18 that allow it to maintain a fixed position without operator intervention (FIG. 20).

As described, the linked collar 51 stitch lines 7, 12 (collar seam line, FIG. 3) are from the ends of the knitwear 50 (FIGS. 4, 5 and 6) moving under the collar 51. At regular intervals, it ends directly under the peephole 13 of the video camera 160 (FIG. 7, if provided).

First, the collar 51 is inserted under the small foot 14 and into a guide 53 consisting of a roller 19 and a stopper 18 (FIG. 20).

Second, the knitwear 50 is inserted into the stopper 22 of the plate 17 of the guide 53 under the small foot 14 placed under the collar 51 (FIG. 21).

Contrary to the collar 51, the knitwear 50 is managed and controlled by the operator with the help of a guide 53.

Along the perimeter to which the collar 51 is connected,

The knitwear 50 comprises the very different managed situations described below.

1) At the nape part 3, the dough rolls up and needs something to spread it (Fig. 8).

2) There are two seams on the shoulders 1 and 2 that increase the thickness of the fabric and make the edges of the knitwear 50 irregular (Fig. 9-10).

3) The overlock 11 is arranged at the front portion of the knitwear 50-the neck portion 4 (FIG. 11).

4) The ends of the knitwear 50 to which the collar 51 is joined are very irregular (FIG. 2).

For these reasons, the guide 53 supports the operator in managing these different situations.

As soon as the knitwear 50 is inserted into the transport or drive belt 16 under the small feet 14 and collar 51, the joint (FIG. 21) of the left shoulder portion 2 (FIG. 9) of the knitwear 50 closes in a ring. It is linked with the joint portion 6 (FIG. 3) of the collar 51.

The material (knitwear 50 and collar 51) is transported until the joints 2 and 6 are under the needle 15, from which the linking procedure begins.

In the first part, the operator will use the stopper 22 on the plate 17 of the guide 53 to keep the knitwear 50 in the correct position (FIG. 16).

Further, the operator will use the fold 21 on the plate 17 of the guide 53 that can unfold the nape 3 of the knitwear 50 (FIG. 16).

The folded portion 21 of the plate 17 represents a feature of the guide 53 used to spread the rolled dough (FIG. 16).

Over the entire nape portion 3 (FIG. 8), the operator spreads the nape portion 3 of the knitwear 50 and holds the nape portion 21 of the plate 17 of the guide 53 and the guide 53 in order to hold it in the correct position. While the stopper 22 on the plate 17 needs to be used, the collar 51 does not require some intervention by the stopper 18 of the rollers 19 and guide 53.

As soon as it reaches the joint 1 (FIG. 2-10) on the right shoulder of the knitwear 50, the item is no longer rolled up, like the nape 3, at the end of the knitwear 50 on the neck 4. If the knitwear 50, where the overlock 11 is found, is in front of the neck 4 (FIG. 2-11), it needs to be moved to a new stopper 23 on the plate 17 that can manage the situation in different ways.

Therefore, the operator no longer uses the fold 21 that widens the nape 3, but simply uses the stopper 23 on the plate 17 to ensure that the overlock 11 maintains the desired seam line 52.

Thus, the operator continues to join the collar 51 to the knitwear 50 along the common seam line 52 having the features described above until the end in this way.

As we have seen, the adjustable tension roller 19 is used to pull one collar 51 until the deployment of the collar 51 is aligned around the knitwear 50.

In the final part of the procedure of linking one collar 51, it is necessary to release the rod 20 which creates the operator's visibility.

By this operation, the work can be completed without having to move the fabrics of the collar 51 and the knitwear 50 (FIG. 12-13).

As will be appreciated from what has been described, the present invention can overcome the disadvantages present in the prior art.

In fact, the present invention provides a linking machine that assists the operator in presenting the fabric (knitwear and one collar) to the linking machine so that the machine performs the linking procedure correctly and automatically.

Although not required, it would be preferable for the linking machine to be equipped with a video camera that can further optimize the true linking step and increase the total linking speed.

Accordingly, the present invention provides a guide that assists the operator in presenting the fabric in the correct position to the machine when connected to a system for transporting the fabric (knitwear and collar). Therefore, these fabrics can be linked by a machine, preferably equipped with a video camera, to improve pitch / seam stitching in real time.

To meet the accompanying and specific requirements, one of ordinary skill in the art can improve and modify the solutions described above in many ways within the scope of the invention, as defined by the following claims.

Claims (13)

The first separated linking machine (100) that links the knitwear (50) and the collar (51).
A fixed unit (110) comprising a support frame (120) and a transport device (16) for knitwear (50) and / or a collar (51) along the longitudinal direction (YY).
To perform the linking, the needle (15) is provided with a device (140) for operating the needle (15) along the vertical direction (ZZ) perpendicular to the vertical direction (YY). Mobile unit (130) and
A guide (53) configured to align the nape seam line (8) of the knitwear (50) with the neck seam line (10) of the knitwear (50) and the collar seam line (7).
The guide (53) is arranged in a direction substantially parallel to the vertical direction (YY) so that the knit wear (50) can be arranged in parallel with the stoppers themselves (22, 23). With at least one stopper (22, 23) for the garment (50),
A folded portion (21) arranged upstream of the at least one stopper (22, 23) with respect to the transport direction of the knitwear (50) on the corner of the plate (17). 21) is a linking machine (100) comprising a guide including a plate (17) comprising a fold portion that helps widen the nape end (9) to which the collar (51) is joined. The plate (17) includes two stoppers (22, 23).
The first stopper (22) is adapted to allow the knitwear (50) to be placed parallel to the stopper itself.
The linking according to claim 1, wherein the second stopper (23) is adapted to ensure that the overlock (11) of the knitwear (50) maintains the desired seam line (52). Machine (100). The linking machine (100) according to claim 1 or 2, wherein the bent portion (21) is inclined downward to the opposite side of the at least one stopper (22, 23). The guide (53) is oriented substantially along the longitudinal direction (YY) and is perpendicular to the longitudinal direction (YY) and the vertical direction (ZZ), the lateral direction (XX). Any one of claims 1 to 3, including a stopper (18) for the collar (51), comprising a flap (24) for holding the collar (51) extending itself along the) flat. The linking machine (100) according to the section. The guide (53) comprises at least one tension roller (19) that provides the tension required by the collar (51) and is adjustable in controlling the position of the collar (51). The linking machine (100) according to any one of 1 to 4. The guides (53) are two tension rollers (19) parallel to each other and parallel to the vertical direction (YY) and the horizontal direction (XX) perpendicular to the vertical direction (ZZ). The linking machine (100) according to claim 5. The guide (53) maintains the movement of the collar (51) in order to create visibility of the knitwear (50) by the operator on the stoppers (22, 23) itself. The linking machine (100) according to any one of claims 1 to 6, wherein the releasable rod (20) is arranged so as to protrude in the vicinity of (22, 23). The linking machine (100) according to claim 7, wherein the rod (20) is oriented in a direction substantially perpendicular to the stoppers (22, 23). The transport device (16) includes a belt drive system (16) that carries the knitwear (50) and the collar (51), and the guide (53) is located at the starting point of the belt drive system (16). The linking machine (100) according to any one of claims 1 to 8. Includes a video camera (160) configured to identify guide threads arranged corresponding to at least one fabric between the sewn collar (51) and the knitwear (50).
The linking machine (100) according to any one of claims 1 to 9, wherein the guide yarn is inserted inside the fabric (50, 51) so as to identify the plurality of knitwear to be linked. .. The guide (53) is from the end of the knitwear (50) where the linked seam line (12,7) of the collar (51) or the seam line of the collar moves under the collar (51). The linking machine (100) of claim 10, configured to end just below the peephole (13) of the video camera (160) at a fixed distance. 1 to claim 1, comprising a positioning device (140) for a needle (15) in the same plane as the fabric (50, 51) along the horizontal direction (XX) perpendicular to the vertical direction (YY). The linking machine (100) according to any one of 11. The positioning device (140) of the needle (15) can operate on the video camera (160) so as to position the needle (15) laterally according to the information received from the video camera (160). 12. The linking machine (100) of claim 12, quoting claim 10 or 11, which is connected so as to.

Images