JPS5851000A - Apparatus for folding socks - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a folding device for socks, particularly long socks such as pantyhose and seamless stockings.

An object of the present invention is to provide a sock folding device that uses a simple folding means to save packaging materials and enables accurate and quick sock packaging operations.

Conventionally, in the packaging process for socks, a cardboard mount is placed on the longitudinal center of the sock to be folded, and the waist and toe parts of the long sock are simultaneously folded in half from the left and right on the cardboard mount. The socks are folded to have a width approximately equal to the width of the cardboard mount, and the socks folded around the mount are appropriately wrapped in decorative paper and inserted into a plastic packaging bag, and the opening of the packaging bag is folded back. This is done by sealing the documents.

The purpose of supplying the cardboard mount is to prevent the socks from losing their shape and causing wrinkles after packaging.

However, automatic packaging equipment can perform the packaging process for socks, which involves supplying a cardboard mount one by one to approximately the center of the socks in the longitudinal direction, wrapping the socks around the mount, folding them, wrapping them in decorative paper, and inserting them into a packaging bag. If this method were attempted, it would be extremely complicated in terms of equipment, and there would be the disadvantage that the speed and accuracy of the packaging operation would be poor.

In order to supply socks in large quantities at low prices, it is absolutely necessary to economize on packaging materials and to perform packaging operations quickly and accurately.

Therefore, the outline of the sock folding device according to the present invention will be explained in the first part.
To explain with reference to the figure, there is a pair of main conveyors (14a) (14b) that operate synchronously and in the same direction.
A plurality of work stations (three work stations (I), (D), and
)) and a pair of main conveyors (x4@) (x
+b) is the work station (to the third work station in Figure 1) located at the end of the area above the central separation of the pair of main conveyors (14m) (14b). A first insertion plate (for inserting between the lower winding drive roller Ql and the driven roller holder while folding the sent sock 0 approximately at the center in the longitudinal direction in half)
(to) is provided so as to be movable up and down, and the starting end of a transfer conveyor member extending horizontally from outside the sock folding device is disposed directly below the driven roller.

Although not shown in FIG. 1, socks are folded in half by the driving roller a9 and the driven roller (a) and sent out in the vertical direction between the driven roller and the starting end of the transfer conveyor (to). The second insertion plate (to) for horizontally inserting the paper while further folding the paper in half or the transfer conveyor (1)
) is installed so that it can move forward and backward horizontally in the direction of travel. When the socks (C) are folded and transferred to the outside of the folding device (1) as shown by the arrow, the socks are pressed and inserted into the packaging bag (Pu) from above the extension line in the transfer direction of the transfer conveyor (to). After being once transferred to the lower part of the standby position of the insertion plate (4), the insertion plate (4) inserts it into the packaging bag (Pu).

This packaging bag (Pu) is manufactured by folding a rolled plastic film in half using a bag making machine (2) and welding and cutting it into perforations to an appropriate width using a heat cutter (22). ), the insertion plate (4) is fed in a straight line in a direction perpendicular to the direction of movement of the insertion plate (4).

As can be seen from Figure 1, each packaging bag (Pu) is
Pu) is formed into a band shape, and each packaging bag (Pu)
The lid of the packaging bag (Pu) is cut off, and the folded socks H are inserted into the packaging bag (Pu) by the insertion plate (4), and the adhesive tape is fed by the adhesive tape supply unit (5) while being transferred intermittently. It is attached to the back of the lid of the packaging bag (Pu),
Furthermore, the lid part is folded back and sealed at the sealing part (6), and the product is transported to the product stocking part.

As shown in Fig. 1, a sock folding device (1) is provided, and the pair of main conveyors (14s (14b)
The terminal area of the flat front position, i.e. the second work station" (
2), a folding board that can advance horizontally from below the sub-conveyor to above the main conveyor (141) and above the main conveyor (14m) are disposed above the main conveyor (141).
A folding member (2) is provided for folding one side of the socks placed on the sub-conveyor curvature back onto the main conveyor (14-meter) and overlappingly folding the socks. It is being

Next, the structure of the sock folding device according to the present invention will be explained in detail with reference to FIGS. 2 to 4.

First, place the shaft (l1m) (
(11 m
) is equipped with a conveyor roller (12a) Q2b), and the shaft (llb) is equipped with the conveyor roller (12m).
Conveyor roller (13a) corresponding to (13) (13)
b*A They are fitted with appropriate spacing between them, and the main conveyor (14a) is attached to the right conveyor roller (12m) (13k), and the left conveyor roller (12b)
The main conveyor (14b) is stretched over (13b)+c.

As shown in FIG. 4, a work table (to) is arranged on the machine frame frame QG, and its negative side edge reaches above the conveyor rollers (12m) (12b).

In FIG. 2, the linear protrusions aQ arranged at equal intervals on the main conveyor (14m) are used by the worker to pull the socks to be folded from the work table αθ onto the main conveyor (14m).
4m) (14b) A simple line may be used as a mark for accurately supplying the material to a predetermined position on the surface, and does not need to be a protrusion as long as it serves as a mark.

This pair of main conveyors (x+aX1+b) constitutes an endless circulation path, and as shown in FIG. A working station (I) to a third working station (transfer) are set.

Of course, the number of work stations is not particularly limited as long as it is two or more.

The endless circulation path constituted by the pair of main conveyors (14a) (14b) has a gear α force fitted to one side of the shirt (llb) that protrudes outside the machine frame frame. On the other hand, a gear (to) is fitted to the rotor shaft of the drive source (Mo) horizontally fixed to the machine frame frame αO.

As shown in FIG.
Directly below the central spacing part 3 of aX14b), a sock-engaging drive roller αY and a driven roller (E) that forms a pair horizontally with this drive roller wing are arranged.
As shown in FIGS. 2 and 3, the drive roller a11 is attached to an upper extension part (211) of the starting end of a longitudinal frame body fixedly supported on one side of the machine frame αG (211). ing.

On the other hand, the driven roller (A) has swing arms (
2) It is pivoted on the front part of ■, and the swing arm @
Each of the four bases is an upward extension of the starting end of the elongated frame (
21j) It is pivoted on both sides at a position above the pivoting position of the drive roller [9.

As shown in FIG.
), the tip of the stopper bolt (c) screwed into the locking piece (to) provided on the - side is in contact with one side of the swing arm @, and the tip of the swing arm By fixing the spring (2) between the locking piece Q and the locking piece Q, a small gap is maintained between the drive roller α and the locking piece Q. It is configured to obtain.

On the other hand, at the third work station (end) of the endless circulation path, a bracket is installed upright in the machine frame frame aO at a position directly above the centrally spaced part of the pair of main conveyors (14 &) (14b). (E) An air cylinder holder is fixed downward through the air cylinder holder, and the tip of the piston rod (27 m) of the air cylinder holder is attached to the drive roller Q9.
The first insertion plate (
) is fixed.

At a position below the driven roller fence, the longitudinal frame body ■
Conveyor rollers (29m) are mounted on both sides of the conveyor roller (29m).
) and a pair of conveyor rollers (29b) are pivotally disposed at the end portion of the elongated frame body (2) extending outside the machine frame frame QO.

A transfer conveyor is stretched between the two conveyor rollers (29@) (29b).

When the driven roller wing is stationary at the fixed position shown in FIG. 3, the driven roller wing and the transfer conveyor (to)
A slight gap is provided between the starting ends of the elongated frame eη, and an air cylinder is disposed toward this gap via a bracket fixed to the starting end surface of the elongated frame eη. .

The piston rod of the above air cylinder (towards)' (32m
A second insertion plate (to) is fixed horizontally to the tip of the second insertion plate (to).

As shown in FIGS. 2 and 3, a gear is fitted to one end of the rotating shaft of the conveyor roller (29b), while a bracket is attached to the side of the longitudinal frame (2). A gear fitted to the rotor shaft of the drive source (M2) which is fixed via (to) is meshed with the gear (to).

In addition, a belt pulley is fitted to one end of the rotating shaft of the conveyor roller (29), and a belt pulley is fitted to one end of the rotating shaft of the drive roller a value. A transmission belt 4 is stretched between belt pulleys vJcn.

Therefore, by driving the drive source (M2), the transfer conveyor (to) moves in the direction of arrow 0 in FIG. 3, and the drive roller α [with] is rotationally driven in the direction of arrow 0 in FIG. 3. .

As shown in FIGS. 2 and 3, on the extension line of the transfer conveyor (to) in the transfer direction, there is a line between the transfer conveyor (to) and the road surface.
A plate is fixedly arranged on the elongated frame (2).

As shown in FIGS. 2 and 4, one of the main conveyors (
A conveyor roller (42m x 42b) is installed at the outside position of the machine frame frame Ql via a bearing bracket (41b) that is installed upright on the machine frame frame Ql. The enclosure is strung up.

As shown in FIG. 3wJ and FIG. 4, this sub-conveyor is provided in a stepped manner and slightly higher than the pair of main conveyors.

A transmission belt is stretched between the belt pulley fitted to the shaft of one of the conveyor rollers (42b) and the belt pulley fitted to the shaft (llb) installed on the main conveyor (14m). has been done.

Therefore, the sub-conveyor (to) is constituted by the drive source (Mo).

In FIG. 2, the sub-conveyor is disposed across the first work station (I) and the second work station (2) of the endless circulation path, and the second work station (2) A sock folding member is provided facing the sock.

In other words, an air cylinder facing the main conveyor (14 m) is supported horizontally via a bracket erected in the machine frame frame QO facing the second work station (2), and the air cylinder The tip of the piston rod (491t) of the cylinder is located under the lower surface of the upper path of the sub-conveyor when the air cylinder returns, and is located under the upper surface of the upper path of the main conveyor (14@) when the air cylinder is extended. The folding church that protrudes to the upper position is fixed horizontally.

When the folding plate (1) and the folding plate (141) protrude above the main conveyor (141), the folding member (goods) cooperates with them to fold one side of the socks placed on the secondary conveyor into the main conveyor (141). 14m) consists of a folding auxiliary rod ■ that serves as a fulcrum when folding upwards, and this folding auxiliary rod ■ is an iJ
Main conveyor (1) located at work station (2) of 2
It extends in the running direction of this main conveyor (14) at an appropriate height position on the main conveyor (14@), and is disposed via a bracket ring fixed to and erected on the machine frame frame Q (I).

Next, the overall operational relationship of the sock folding device according to the present invention will be explained.

First, the worker arranges the socks to an appropriate width on the work table (G) and places them on the first work station (1) of the pair of main conveyors (141) (14b). At this time, if the socks are relatively short in longitudinal width, such as so-called high socks (below-the-knee stockings), two pairs of socks are overlapped and placed evenly on the pair of main conveyors (14a) (14b). If the socks are pantyhose, the socks are folded and aligned so that the legs overlap at the center in the width direction, and placed on the pair of main conveyors (141) (14b) and the sub-conveyor (to). do. In the case of socks or seamless stockings, two pairs of socks are stacked and pulled as a set, and similarly to the case of pantyhose, they are placed on a pair of main conveyors (14λX14b) and a sub-conveyor.

First, let us explain the operational relationship of this device in the case where the socks to be folded are socks. is synchronous a (141X1
4b), the final area of the work station (in Figure 2, the third work station ([D)] is the wrong number → Kusunoki, the upper air cylinder holder is first operated to protrude, and the first insertion plate at its tip is activated. 2), the socks (
After the air cylinder plow is folded in half and inserted between the drive roller 09 and the four driven rollers located below the centrally spaced part of the pair of main conveyors (14a, 14b), the air cylinder plow returns to its original position.

When the driven roller sock is inserted into the slight gap 4 between the opposing driving roller a and the spring (2)
), the sock is folded in half and moved forward in the direction of arrow (b) in FIG. 3 by the thickness of the inserted sock.

Therefore, the sock 0 inserted in the folded state is sandwiched between the driving roller α and the driven roller, and since the driving roller a is constantly rotating in the direction of the arrow (b) in Fig. 5, the sock 0 is inserted into the sock. The socks are rolled up and folded into two between the driven rollers and sent out downward (the sock (position H) in Figure 5).

At this time, the driven roller (E) rotates in the direction of the arrow (G) in FIG. 5 in synchronization with the drive roller (19).

The main conveyor (14@) (1
4b) When the sock I placed on top of the sock I is rolled up, both sides of the sock H fall onto the driving roller and the driven roller (e) and are folded in a pair as shown in FIG. Hopper-shaped guides (53m) (53b) can be provided from the lower surface of the main conveyor (14a) (14b) toward the gap between the scratches on the driving roller (a) and the driven roller (e).

While socks I are folded in half like this (H'
), the lower end of this sock (H') is detected by a photoelectric sensor (S) installed below one main conveyor (14) as shown in Figure 5. Based on the detection signal, the air cylinder is actuated and the second insertion plate protrudes toward the top of the transfer conveyor (in the direction indicated by the arrow in Figure 5), thereby inserting the sock (H') at approximately the center in the longitudinal direction. Transfer conveyor (7) while folding in two
Insert between the starting end of the roller and the upper driven roller slope. The inserted socks (H) are rolled up and folded by the transfer conveyor (7), and then passed along the transfer conveyor (Fig. 5, arrow (q)).
It will be transported in the direction shown.

At this time, while the socks (H') remain between the driven roller (E) and the driving roller 0, the gap between the driven roller (H') and the transfer roller (19) is the same as that between the driving roller (19) and the sock (H').
The gap is approximately twice the gap corresponding to the thickness of the drive roller 09 (H').
) and the start end of the transfer conveyor (to) are equal to the speed at which the socks (H) are rolled up, so the socks are folded in half by the second insertion plate (to) and the gap between the start end of the transfer conveyor (to) and the driven roller gap is the same. The inserted socks (H) are pinched with appropriate pressing force between the starting end and the action of the driven rollers on this transfer conveyor, and are folded into a flat state without wrinkles or the like.

Of course, the socks (the H side is the driven roller (H) and the drive port:
1.1 ・.

- After the roller 09 is completely fed out, the driven roller holder rotates while maintaining an appropriate pressing force against the socks (H) between it and the starting end of the transfer conveyor due to the biasing force of the spring. Continue.

The socks (H'') which have been finally folded in four in the longitudinal direction in this manner are transferred to the outside of the folding device by a transfer conveyor, and the receiver is sent onto a board.

Next, the operation of this device will be explained when the socks to be folded are relatively long socks such as pantyhose or seamless stockings.

In this case, at the first work station (1), if the worker places the sock 0 on the pair of main conveyors (14aX14b) and the sub-conveyor, the main sock O remains in the state where it is placed by the worker. Move to the second work station position.

At this time, as shown in Fig. 6, one side of the socks I is placed on the sub-conveyor (top) in a stepped manner, and the socks I are inserted below the folding auxiliary rod 6p with an appropriate distance. in position.

Here, by the protruding operation of the air cylinder, the folding teacher moves horizontally on the folding auxiliary rod 6υ with an appropriate gap, as shown in FIG. 6, and advances from the solid line position to the two-dot chain line position. .

As the folding plate moves forward, one side of the socks n placed on the sub-conveyor is folded back from the solid line position to the two-dot chain line position 1 using the folding auxiliary rod 11 as a fulcrum, as shown in FIG. Folded into state.

Thereafter, the air cylinder returns to its original position, and the folding plate wheel returns to its standby position under the upper path of the sub-conveyor.

In this way, the side-folded socks 0 are placed on the pair of main conveyors (14m) (14b) and moved to the second work station (2) by the drive source (Mo).
2) to the third work station (to), at which time the sock n is pulled out from the folding auxiliary rod 6J). Thereafter, in the same way as the folding means described above, the first insertion plate (1) and the driving roller (A) and the driven roller (C) work together to fold the sock (C) into two at approximately the center in the longitudinal direction, and further. The socks are further folded into two by the cooperation of the 1182 insertion plate (2), the driven roller holder, and the transfer conveyor (to).

The socks n, whether they are so-called high socks or pantyhose, are continuously folded by repeating the above operations.

As described above, according to the sock folding device of the present invention, since the sock is folded in four in the longitudinal direction and the rollers are pressed against both sides during the folding, the folded sock can be left as it is. There is no fear that the product will lose its shape even when it is inserted into a packaging bag and packaged, and therefore there is no need to use a rhinoceros paper mount to prevent the product from losing its shape after packaging, making it possible to save packaging materials.

Further, the packaging operation can be performed accurately and quickly without complicating the equipment.

Furthermore, it is also possible to compact the packaged socks to an appropriate size for convenient handling, etc. After pre-folding one side of the socks placed on the sub-conveyor with a folding member, it is possible to fold the socks into a four-fold shape as described above. This is possible by folding it into a

[Brief explanation of the drawing]

Kappei iI1 figure. Figure j%3 is a partially omitted longitudinal sectional front view taken along the line X--X of Figure 2. Figure tP14 is a partially omitted right side view of the sock folding device according to the present invention. FIG. 5 is a simplified front view of main parts for explaining the operation of the sock folding device according to the present invention. FIG. 6 is a schematic front view of the folding member for explaining the operation of the sock folding device according to the present invention. In the figure, αO is the machine frame frame, (14th (14b) is the main conveyor, a scratch is the sock entrainment drive roller, the handle is the driven roller, @~ is the first insertion plate, (to) is the transfer conveyor, ( (to) indicates the second insertion plate, the target indicates the sub-conveyor, (b) indicates the folding member, ... indicates the folding plate, and ■ indicates the folding auxiliary bar.

Claims (2)

[Claims] (1) A pair of main conveyors that run synchronously and in the same direction are horizontally arranged side by side on the machine frame, and the end area of the pair of main conveyors is a centrally separated part of the pair of main conveyors. A sock winding drive roller and a driven roller horizontally paired with the sock roller are provided at a position directly below the sock, and between these drive roller and driven roller the socks placed on the pair of main conveyors in a stretched state are placed along the length of the sock. A first insertion plate is provided to be inserted while being folded into two at approximately the center of the direction, and is movable up and down, a transfer conveyor is provided below the driven roller, and a first insertion plate is provided between the driven roller and the starting end of the transfer conveyor. 2 more times at approximately the center of the sock in the longitudinal direction.
A sock folding device characterized in that a second insertion plate for folding and inserting socks is provided so as to be movable horizontally. (2) A pair of main conveyors that run synchronously and in the same direction are installed horizontally on the machine frame frame, and the end area of the pair of main conveyors is a centrally separated part of the pair of main conveyors. A sock winding drive roller and a pair of driven rollers are provided in a horizontal position, and the socks placed on the pair of main conveyors in a stretched state are placed between these drive rollers and the driven rollers in the longitudinal direction. A first insertion plate is provided to be inserted while being folded in half approximately in the center, and is movable up and down. A transfer conveyor is provided below the driven roller, and the folded in half is inserted between the driven roller and the starting end of the transfer conveyor. Tighten the sock at approximately the center in the longitudinal direction for two more times.
A second insertion plate for folding and inserting is provided so that it can move forward and backward in the horizontal direction, and a sub-conveyor that intermittently operates in the same direction and in sync with the main conveyor along the outside of one of the main conveyors is provided above the main conveyor. The sock is arranged with a step so as to be located at the front end of the pair of main conveyors, and facing the flat front position of the end area of the pair of main conveyors, for folding back one side of the socks placed on the sub-conveyor and folding them in an overlapping manner. A sock folding device characterized in that a folding member is installed.