JPH024157Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a tubular knitted fabric, particularly a tubular knitted fabric knitted with highly elastic knitting yarn to form one tube. The present invention relates to an automatic device for correcting stitch loop deformations caused by preset shrinkage.

(Prior art) When knitting a single tubular knitted fabric, such as socks, after knitting, it is fitted into a form and preset processing is performed. Consequently, shrinkage, distortion, etc. may occur. For example, when a highly elastic knitting yarn such as urethane conjugate yarn is used, the heat shrinkage is large, so the knitted fabric tends to hang up frequently immediately after knitting, and presetting is performed after knitting. When presetting, the knitted fabric suddenly shrinks to an extreme degree, and if the knitted fabric that has contracted in this way is sent to the subsequent process as it is, a phenomenon called so-called twisting will occur due to the deformation and close contact of the stitch loops in the knitted fabric, and the quality of the product will deteriorate. This seriously impairs the appearance and quality, and repair work is required to remove this crookedness phenomenon before high-temperature treatment. Conventionally, when performing this repair, a worker manually places the sock on a foot last (inspection board) that is larger than a typical foot last, measuring approximately 130 cm in height and 25 cm in width, depending on the product size. The fitted sock is then manually pulled up and down, left and right, and the stitch loops, which have become extremely disordered and twisted, are restored to their normal state.

(Problem that the invention aims to solve) The above repair work was of course the responsibility of female workers, who had to forcibly fit the socks onto a foot shape that was larger than the general foot shape, and also fit the socks vertically, left and right. Pulling the material to the point where it is pulled is extremely labor-intensive and all work is done manually, so the processing efficiency is generally low, and in the case of mass-produced items like socks,
Such manual intervention is the bottleneck for the productivity of the entire production line, and furthermore, since it is done manually by an individual, the correction results may lack uniformity.

(Means for solving the problem) The present invention is designed to completely automatically correct the twisting phenomenon in tubular knitted fabric products as described above, thereby saving labor and making corrections by mechanical means. Therefore, by simply hooking a single tubular knitted fabric onto rods arranged in a row on a circulating circle line, the tension of the knitted fabric against the rod can be reduced. In addition, the maintenance of the unfolded state and the correction of the twist on the unfolded knitted surface automatically proceed.Specifically, a single cylindrical knitted fabric covering is placed on a rotatably provided platform. A plurality of processing bodies each having a pair of fitting rods whose spacing can be expanded or contracted according to the rotation of the base plate are arranged in an equally spaced arrangement; The pair of rods press the lower part of the single tubular knitted fabric hooked to the rods and push it down, corresponding to the rotational path of the processing body passing under the condition where the distance between the rods is widened. A knitted fabric adding mechanism having a press-contact pressing member is provided; the base plate can move forward and backward in the radial direction, and the expanding rod is pressed against the knitted fabric whose approximately entire length is fitted into the rod by the adding mechanism. A knitted fabric loop repair mechanism having a tension adding member is provided; both of the mechanisms are arranged in the above order and on the inner peripheral side of the base plate.

(Function) According to the technical means of the present invention, the tubular knitted fabric 4 forming one tube is fitted into the pair of rods 3, 3 in a hanging state, and then the pair of rods 3, 3 are expanded. During this time, the pressing member 17 of the knitted fabric adding mechanism comes in, and the pressing member 17 lowers to fit the tubular knitted fabric 4 over substantially the entire length of the rods 3, 3. The knitted fabric 4, which is fitted over substantially the entire length of the pair of rods 3, 3, is stretched in the diametrical direction of the cylinder, and a knitted fabric loop correction mechanism is installed at approximately the center of the knitted fabric 4. The tension adding member 13 is pressed against the knitted fabric 4 and pulls the knitted fabric 4 vertically and horizontally to form a loop and eliminate the twisting phenomenon.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 3, a ring-shaped base plate 1 is installed on the outer periphery of a disk-shaped fixed base 7 in the illustrated example so that it can be rotated continuously or intermittently in the direction of arrow P. At the same time, on this base plate 1, six processing bodies 2 are rotatably installed along with the base plate 1 at equal positions divided into six equal parts of the circumference in the illustrated example.
Each processing body 2 has a pair of arms 2 on a support shaft 14.
a and 2b are arranged opposite to each other so as to be freely openable and closable, and rods 3 and 3 are fixed upright to the ends of each arm 2a and 2b, and the distance between the rods 3 and 3 is changed by opening and closing the arms 2a and 2b. It is said to be able to expand and contract freely,
At this time, in Figure 1 in a plan view, the positions divided into six equal parts of the circumference are as shown in the figure. In the specified case, the pair of rods 3, 3 in the processing body 2 are rotated in the expanded state in the zone, and each zone in the lower half from the center,
In , the pair of rods 3, 3 in the processing body 2 are provided so as to pass through in a contracted and closed state; The zone is a knitted fabric loop correction zone, the zone is a movement zone, and the zone is a tubular knitted fabric take-out zone, and the additional feed mechanism 5 corresponds to the additional feed zone, and the additional feed mechanism 5 corresponds to the next correction zone. A knitted fabric loop correction mechanism 6 is provided on each base 7. As shown in FIG.
In the illustrated example, the bracket 15 is rotatably held on a fulcrum shaft 11 provided on the base 7, and the bracket 15 is
A holder 16 that is held movably up and down, and a press-contact push-down member 17 that is provided on the holder 16 so that it can move back and forth.
The press-contact push-down member 17 is attached to the tubular knitted fabric 4 hooked to the upper part of the two expanded rods 3, 3 in the processing body 2 located in the addition zone. The knitted fabric loop correction mechanism 6 is provided so as to be able to move forward and backward and up and down while facing directly, and to be rotatable in synchronization with the rotation of the processing body 2.
As shown in the figure, it is made up of a bracket 18 held on the fulcrum shaft and a tensioning member 13 held movably forward and backward by the bracket 18, and the tensioning member 13 is attached to the processing body 2 located in the correction zone. The expanded expanded tubular knitted fabric 4 is completely covered by the additional insertion mechanism 5 over the entire length of the two rods 3, which are also in the expanded state.
By being provided so as to face directly and to be pressable in the vertical direction, it is possible to automatically perform the repair work on the tubular knitted fabric 4 as described below.

That is, while the base plate 1 is continuously rotated at a constant circumferential speed, the tubular knitted fabric 4 is attached to the two rods 3, 3 which are in the contracted and closed state in the attachment zone, as shown in FIG. First, the knitted fabric 4 is hung on the upper part of the rods 3, 3 in a hanging manner (by hand). 2 is the base plate 1
Along with the rotation of the rotation, it passes through the movement zone and reaches the addition zone, but as it enters this zone, by the gear mechanism 9 provided at the entrance side of the zone as shown in the embodiment later, A pair of arms 2a, 2b of this processing body 2 is a support shaft 14.
By expanding in opposite directions using the rods 3, 3 as fulcrums, the knitted fabric 4 hooked to the same rods 3, 3 expands in the diametrical direction of the tube. At the same time, the pressing member 17 in the additional feed mechanism 5 moves forward toward the knitted fabric 4 as shown by the second arrow A in the figure (base board 1
(advances in the radial direction of the knitted fabric 4), abuts and engages the lower part of the knitted fabric 4 between the pair of rods 3, 3, and then lowers the rods 3, 3 in a hanging manner by lowering the knitted fabric 4 as shown by arrow B. The knitted fabric 4 hooked on the rods 3 is pushed down along the rods 3, 3, so that the knitted fabric 4 is completely fitted over the entire length of the rods 3, 3, and the rods 3, 3 are expanded. By opening, it becomes an expanded and expanded state.At this time, by synchronizing the rotation of the base plate 1 and the rotation of the pressing member 17 by the bracket 15, between the addition zone and the next correction zone, Complete fitting of the hooked knitted fabric 4 is completed. Pressure pressing member 17 at the lowest position
is restored when the underground end of the knitted fabric is detected by a phototube or other detection member (not shown). In this way, the tension adding member 13 of the knitted fabric loop correction mechanism 6 is applied to the four sides of the expanded and developed knitted fabric in the processing body 2 that has moved to the knitted fabric loop correction zone, and the knitted fabric is also knitted using a phototube or other detection member (not shown). When the intrusion of the knitted fabric 4 is detected, it is advanced toward the knitted fabric 4 (in the radial direction of the base plate 1) and pressed between the pair of rods 3, 3 to approximately the center position of the expanded knitted fabric 4, and an appropriate tension is applied. By adding tension, the knitted fabric 4 moves in the same zone, and by applying pressure and tension to the entire surface of the knitted fabric passing through in the vertical direction, the deformed and tightly knitted stitch loops are restored to their normal state. It is automatically possible to correct the loop and eliminate the twist phenomenon. In other words, the knitted surface where the twisting phenomenon has occurred is caused by the tension in the left and right direction of the knitted fabric due to the expansion of the arms 2a and 2b and the tension in the vertical direction due to the pressure of the tension adding member 13, so that the knitted surface has a normal loop shape. It is possible to restore it to its original form. In this way, stitch correction work is performed continuously between the correction zone and the next moving zone as the base plate 1 rotates, but at this time, as shown in FIG. It is also possible to arrange an inspection plate 19 having a color contrasting with that of fabric 4 to simultaneously inspect knitting defects and other defects in knitted fabric 4 after tension has been added (this is done in the next moving zone). ), thus the exit after the movement zone,
A gear mechanism 10 in which a pair of arms 2a and 2b similar to those described above contract and close in reverse using a support shaft 14 as a fulcrum.
(described later in the embodiment), and arms 2a, 2
b is contracted and closed to bring the rods 3 and 3 into the same contracted and closed state, and moved to the next installation zone. As shown in Figure 1, the suction duct 2 is placed above the rod in the zone.
At this time, as shown in FIG. 3, two suction ducts 20a and 20b are provided in the extraction zone, and by selectively operating the suction, good products can be collected from the duct 20a. In addition, defective products can be sorted into 20b and automatically extracted, and the repair work for removing kink, which is the purpose of the present invention, can be made extremely efficient through continuous hooking of the tubular knitted fabric 4 by the worker in the extraction zone. This can be done with greater efficiency and labor savings.

Note that the post-processing device of the present invention includes a base plate 1, a base plate 7
In the embodiment shown in Fig. 1, a circular case is shown as an example, but the same effect can be applied to an elliptical case, and the rotation of the base plate 1 can be achieved by continuous rotation as shown in the section on action. In addition to the rotation, an intermittent rotation method for one pitch may also be used. For example, as shown in the first figure, an internal gear 21 provided on the ring-shaped inner peripheral surface of the base plate 1 is used. This is done by meshing a pinion 8 driven by a prime mover 22, and as shown in FIG. 4, the base plate 1 has rails, bearings, etc. , is rotatably mounted via a suitable rolling member 24. In the embodiment of the base plate 1, a support shaft 14, arms 2a, 2b, arms 2a,
Rods 3, 3 installed upright at each tip of 2b
Both of the processing bodies 2 are arranged under the same structure, but the detailed structure of the processing bodies 2 is as shown in FIG. A gear 26 is fixed to the support shaft 14 above the bearing 25, and a gear 28 is connected to the support shaft 1 through a bearing 27 above the gear 26.
4, and one arm 2 is loosely fitted to the upper end of the support shaft 14.
The base of the arm 2a is fixed to the bearing 27 of the gear 28, and the base of the other arm 2a is fixed to the bearing 27 of the gear 28, and each of the arms 2a and 2b has a rod 3 at its tip with a bent portion 3a at its upper end. They are erected in a fixed and parallel manner (see Figure 3). Further, between the pair of arms 2a and 2b, both arms 2
A spring 27 is elastically supported to maintain a and 2b in the contracted and closed state. In the present invention, as described above, when these processing bodies 2 are rotated along the circumferential path along with the rotation of the base plate 1, the extraction zone,
In the attachment zone and the movement zone, the pair of arms 2a and 2b are not expanded and run in the retracted and closed state, and in the addition zone, knitted fabric loop correction zone, and movement zone, each arm 2a , 2b needs to rotate in the expanded state, and various means can be considered for this purpose, but in the embodiment, as shown in FIG. 4,
A fixed gear 26 and a loosely fitted gear 28 are provided on the support shaft 14,
By fixing one arm 2a to the support shaft 14 and fixing the other arm 2b to the bearing 27 of the loose fit gear 28, and rotating the fixed gear 26 and the loose fit gear 28 in opposite directions, Since the arms 2a, 2b can be opened and closed by rotating the bearings 28 in opposite directions, a gear mechanism 9, 10 using a rack and pinion is used. That is, as shown in FIG. 4, in correspondence with the fixed gear 26 and the loosely fitted gear 28 on the support shaft 14, a pinion shaft 29 is fixed on the outer circumferential side of the base plate 1, and a pinion shaft 30 is fixed on the inner circumferential side of the base plate 1. The fixed gear 2 is installed vertically on the pinion shaft 29.
A pinion 31 that meshes with the fixed gear 26 and a pinion 32 that meshes with the loose fit gear 28 are both loosely supported on the pinion shaft 30, and a pinion 33 that also meshes with the fixed gear 26 and a pinion 32 that meshes with the loose fit gear 28 are supported on the pinion shaft 30. In contrast, in the gear mechanisms 9, 9 shown in FIG. 1, as shown in FIG. Erected circumferential wall 35
On each inner surface of the circumferential wall 36 erected on the outer circumferential side, a rack 37 provided on the upper inner surface of the circumferential wall 35 is provided so as to mesh with the upper pinion 34 of the pinion shaft 30, and The provided rack 38 is provided so as to mesh with a pinion 31 provided below the pinion shaft 29. Therefore, if the processing body 2, whose arms 2a and 2b are in the retracted and closed state in the movement zone in FIG. The lower rack 38 on the wall 36 side
rotates the pinion 31, and the pinion 31 interlocks the fixed gear 26, causing the support shaft 14 to rotate counterclockwise and rotate the arm 2a in the same direction. The upper rack 37 rotates the pinion 34, and the pinion 34 engages the loosely fitted gear 28.
By interlocking the bearings 27, the bearing 27 rotates clockwise, and by rotating the arm 2a in the same direction, both arms 2a and 2b rotate in opposite directions (expanding direction), and the arms 2a and 2b are rotated in opposite directions (expansion direction). The distance between the rods 3, 3 in the closed state is widened, and both rods 3, 3 spread out the tubular knitted fabric 4 fitted in a cross-shaped manner in the attachment zone in the left-right direction. As a result, the knitted fabric 4 enters the additional insertion zone, and the additional insertion mechanism 5 presses and presses down the knitted fabric 4 to completely fit it. In addition, in the gear mechanisms 10, 10 provided at the exit of the movement zone shown in FIG. 1, as shown in FIG. A pinion shaft 29 that meshes with the fitted gear 28
A pinion 33 is provided below the pinion shaft 30 which is provided so as to mesh with the upper pinion 32 on the side, and a rack 40 provided on the lower part of the inner surface of the inner circumferential wall 35 meshes with the fixed gear 15. Since the arrangement is opposite to the gear mechanism 9, 9 side so that it meshes with the gear mechanism 9, the pair of arms 2a, 2 in the expanded state
b becomes the contracted and closed state again, and the pair of rods 3 and 3 also return to their original contracted and closed state, so the repaired knitted fabric 4 is released from the restraint and becomes free, and the suction duct of the knitted fabric 4 in the next take-out zone 20 to 20a, 20b
This allows for smooth extraction. In this embodiment, upper and lower racks 37, 38, 3
9, 40, upper and lower 2 in pinion shafts 29, 30
The movement mechanism for expanding, contracting and closing using the stage pinions 31, 32, 33, and 34 is of course just one example, and the pair of arms 2a and 2b on the support shaft 14 can be expanded and contracted even without such a mechanism. Needless to say, it is. Additional insertion mechanism 5 disposed on the base 7
In the embodiment shown in FIG. 2, the knitted fabric loop correction mechanism 6 is shown as being integrally provided on the common fulcrum shaft 11, but they may be provided separately. You can make it more compact. In this embodiment, in order to continuously rotate the base plate 1, the additional mechanism 5 includes an air cylinder 12 whose one end is pivotally supported on the bracket 15 as illustrated in FIGS. 1 and 2.
The piston rod 12a is connected to the bracket 15 and rotated around the fulcrum shaft 11 to synchronize with the rotation of the processing body 2 in the additional feed zone. If rotation and stopping are repeated for each zone, such a movement mechanism is not necessary. Holder 16 is bracket 1
5 is movable up and down by an air cylinder 41, a guide 42, etc., and the pressing member 17 is rod-shaped,
It can be shaped like a block or a plate, but care must be taken not to damage the knitted surface.
3. The tension adding member 13 in the knitted fabric loop correction mechanism 6 is a bar-shaped member with a curved surface as in the embodiment, so as not to cause damage to the knitted surface. It is said that the pressure can be adjusted freely,
45 indicates a guide rod, but both mechanisms 5,
The movement mechanism in 6 can of course be designed other than the example shown. In addition, even if additional work and knitted fabric loop correction work by adding tension are performed at the same time,
Although it may be done separately, it is more efficient to do it simultaneously in accordance with the rotation cycle by continuous rotation.The angle is set in advance (about 60 degrees because it is divided into 6 equal parts in the example), and the fulcrum is set at a common point. Although it is desirable to simultaneously rotate the arms 2a and 2b, an intermittent rotation method for each zone is also advantageous in terms of simplifying the mechanism and opening/closing mechanism of the pair of arms 2a and 2b.

(Effects of the invention) According to the invention, the work of removing lint, which was conventionally done manually by female workers, can be done extremely efficiently and labor-savingly. It is sufficient to simply hang the tubular knitted fabric in a chain-like manner in the attachment zone, and first, the tubular knitted fabric is completely fitted onto the pair of expanded rods 3, 3 by the additional insertion mechanism 5. The knitted fabric is brought into an expanded and unfolded state, and the tension adding member 13 in the knitted fabric loop correction mechanism 6 can suitably and uniformly pull the loop shaping action vertically and horizontally.
It is possible to completely eliminate the knitting phenomenon, and in addition to removing the knitting defects, it is also possible to inspect other knitting defects without wasting any waste, and to ensure labor-saving and uniform correction of fabric loops. This can contribute to improving the quality of tubular knitted fabrics.

That is, even if the knitted fabric is in a single tubular shape, the knitted fabric is hooked onto a pair of rods, the rods are expanded, and the press-down member is pressed against the lower part of the expanded knitted fabric, and the knitted fabric is lowered. , the entire length of the knitted fabric can be automatically fitted onto the rod, and by pressing the tensioning member between the expansion rods against the single tubular knitted fabric in the expanded and unfolded state, the expanded upper Since tension is added to the knitted fabric, it is possible to reliably eliminate the twisting phenomenon over almost the entire area, and the work from expanding and developing the knitted fabric to loop shaping can be automated with a simple configuration.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of the device of the present invention, Fig. 2 is a perspective view of the main mechanism, Fig. 3 is an external perspective view of the device, and Fig. 4 is an enlarged/reduced view of the same, and a vertical cross-sectional front view of an embodiment of the drive mechanism. It is a diagram. DESCRIPTION OF SYMBOLS 1... Base board, 2... Processing body, 2a, 2b... Arm, 3... Rod, 4... Cylindrical knitted fabric, 5... Addition mechanism, 6... Knitted fabric loop correction mechanism, 7... ... Base, 9, 10 ... Gear mechanism, 13 ... Tension addition member, 17 ... Pressure contact pressing member.

Claims (1)

[Scope of utility model registration request] A pair of rods for fitting a single tubular knitted fabric are placed on a rotatably mounted base as the base is rotated,
A process in which a plurality of processing bodies, each having an interval that can be expanded or contracted, are arranged in an evenly spaced arrangement; the base plate can move forward and backward in the radial direction and can be raised and lowered, and the pair of rods pass through with the interval widened. Corresponding to the rotation path of the body, a knitted fabric adding mechanism is provided which has a pressing member that presses against the lower part of the single tubular knitted fabric hooked on the rod and presses it down; A knitted fabric loop adjustment mechanism is provided that is movable in a direction and has a tension addition member that presses between the expanding rods on the knitted surface whose approximately entire length is fitted onto the rod by the addition mechanism; , a post-processing device for a tubular knitted fabric, characterized in that the devices are arranged in the above order and on the inner peripheral side of the base plate.