JPH0773633B2 - Fabric folding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding device for a cloth body, which forms a fold of a predetermined width at the side edge of the futon side, for example, to sew a futon side in a folding style.

[0002]

2. Description of the Related Art Generally, the futon side sewn seams are of a folding type in which they are sewn along a folded piece having a predetermined width formed on the edge of the futon side. For this reason,
Before the sewing process, a folding process is provided to form a fold of a predetermined width on the futon side edge. When such folding work on the futon side is manually performed, the quality is not stable and the productivity is low. Therefore, the precedent example of the device that automatically performs the folding work is
It is disclosed in Japanese Utility Model Laid-Open No. 61-30500. The folding device disclosed in the same publication is one in which a cloth body is sandwiched between a receiving die and a pressing die, and the edges thereof are folded back by a predetermined width.

[0003]

However, in the folding apparatus described in the above publication, for example, four-sided folding can be formed at one time, but a receiving die and a pressing die are required for each size of cloth. There is a drawback. For this reason, the configuration of the entire apparatus becomes large. Further, since the folded pieces intersect at the corner portion of the cloth body, in the folding device described in the above publication, the folded piece formed earlier and the folded piece formed later interfere with each other, and The work of adjusting the folding overlap between the folded pieces is essential.

According to the present invention, as a means for forming a folded piece, a common folded piece can be used regardless of the size of the cloth body, and the folded piece of the cloth body can be freely formed with a small-scale structure. For the purpose of provision. Another object of the present invention is to provide a folding device for a fabric body, which can be easily folded at the corners where the folded pieces intersect.

[0005]

SUMMARY OF THE INVENTION The present invention comprises a substrate and a substrate
A turntable having a rotating sheet on which a cloth is laid on the upper surface of the body, and a folding piece of a predetermined width is provided on one side of the cloth, which is displaced toward and away from the cloth laid on the rotating sheet. Long and folded along the folded piece to form each
A folding device for a cloth body, comprising a folding means that is movable in the width direction of the return piece .

[0006]

In the folding device having such a structure, the cloth body is spread in a predetermined direction and laid on the turntable. The folding means is for folding back the edge of the unfolded cloth body by a predetermined width to form a fold line. Therefore, for example, in the case of a tetragonal cloth body, the folding means is brought close to the side edge of the cloth body spread on the turntable to form a folded piece for each side , and then the turntable is rotated by 90 °. By
The folded piece can be formed on the other side. In this case, the corners where the folded pieces intersect are folded back in the process of forming the folded pieces by the bending means.

[0007]

The present invention will be described in detail below with reference to the drawings. FIG. 1 shows an overall schematic view of a fabric folding device according to an embodiment of the present invention, and FIGS. 2 to 6 show details of each part. Figure 1
As shown in FIG. 3, the folding device 1 includes frame bodies 3 and 4 each of which has U-shaped ends on both sides of a box-shaped base body 2 that also serve as legs.
Is attached, and the operation box 5 is arranged at the upper corner of the one frame 3. On the upper surface of the top plate 2a of the base body 2, there is laid a rectangular rotary sheet 6 which is rotationally driven by turntable means described later. On the upper middle bar of the frame bodies 3 and 4, two folding means 7 and 8 having the same structure for forming a folding piece having a predetermined width on the peripheral edge of the cloth body (hereinafter referred to as a work) are installed. It is adapted to be attached above the rotary seat 6 via rods 9 and 10. Further, the side plate provided with the operation box 5 is provided with a clamp means 11 that guides the work onto the rotating sheet 6 in an expanded state.

The turntable means 12 for rotationally driving the rotary sheet 6 is constructed as shown in FIG.
An opening 13 is opened at the center of the top plate 2a. A bearing device 14 such as a bearing is attached to the opening 13,
The shaft member 15 supporting the rotating seat 6 is the bearing device 14 described above.
Is supported by. A gear 16 is attached to the lower end of the shaft member 15, and the gear 16 drives the drive gear 1 of the motor 17.
Meshed with 8. The top plate 2a has a large number of rollers 1
9 is attached and is adapted to roll when the rotating seat 6 rotates.

3 to 5 show the construction of the folding means 7 and 8. The bending means 7 and 8 are different in that the bending means 7 is movable in a direction parallel to the frames 3 and 4 (hereinafter referred to as A direction), and the bending means 8 is fixed to the erection rod 10. Only the main configuration is the same. That is, taking the folding means 7 as an example, a cylinder 21 is attached to the erection rod 9 at a substantially central portion through a bracket 20. As shown in FIG. 4, a bracket 24 to which a long work pressing assembly 22 and a long fold forming assembly 23 are attached is fastened to the tip of the cylinder 21. The work pressing assembly 22 and the crease forming assembly 23 are attached to the bracket 24 so as to be opposed to each other by the cylinders 25 and 26 and the guide means 27 and 27 formed of sliders and rails so as to be freely slidable. . Both ends of the bracket 24 are sliders 2
A rail 2 attached to the erection rod 9 in a cross shape via 8
It is supported by 9.

As shown in FIG. 5, the work pressing assembly 22 includes a continuous rod 30 attached to the slider side of the slide means 27, and a plurality (four in FIG. 3) vertically extending from the continuous rod 30. Hanging shaft 31, a pressing plate 32 slidably supported by the hanging shaft 31, and the pressing plate 32.
And a spring 33 mounted between the hanging shafts 31. The tip 25a of the cylinder 25 is connected to the connecting rod 30.

Further, the fold forming assembly 23 includes a continuous rod 34 similar to the continuous rod 30, a cylinder 35 mounted in the vertical direction from the continuous rod 34, and the cylinder 35.
The heater 36 held by the tip portion 35a of the
6 is constructed in parallel with 6, and is configured by a blower tube 37 that lifts a predetermined width from the side edge of the work to the inside of the work by blowing air to the pressing plate 32 side. As with the work pressing assembly 22, the cylinder 26 is attached to the continuous rod 34.
The front end portion 26a of the is connected.

A buffer material 40 such as a Teflon sheet can be fed to the heater 36 by a winding roller 38 and a supply roller 39. The cushioning material 40 is a heater 36
Is interposed between the work and the work to avoid direct contact between the heater 36 and the work. Next, the transfer mechanism of the folding means 7 will be described with reference to FIGS. Folding means 7
Are transferred in the A direction by moving the erection rod 9. That is, the motor 41 is attached to one end of the erection rod 9, while the frame member 4 is provided with a rail member 42 of a predetermined length facing the motor 41. A rack 43 and a rail 44 are formed on the rail member 42, and a pinion 46a of a wheel shaft 46 coupled to the output shaft of the motor 41 via a belt 45 is meshed with the rack 43, and the rail 44 is attached to the erection rod 9. The slider 47 is fitted.

Next, the structure of the clamp means 11 will be described. As shown in FIG. 7, the clamp means 11 includes a long base 48 that is movable on the top plate 2a on the operation box 5 side in the B direction orthogonal to the A direction, and a ruler installed on the base 48. A plate 49 and an abutment 50, a clamp member 51 attached to the abutment 50 in a seesaw type and chucking a work between the pair of bases 48, and a tip end portion attached to a base end side of the clamp member 51 in a vertical direction. And a cylinder 52 facing toward. In this case, the clamping means 11
Are provided, and optical type sensor means 53 for determining whether or not the chucking operation of the clamp member 51 is normal are provided between the clamp members 51 and outside the clamp members 51 at both ends. The clamp means 11 includes a base 4
8 is guided by guide grooves 54, 54 formed in the B direction of the top plate 2b. Since the clamp means 11 is not directly related to the gist of the present invention, a detailed description of the transport mechanism of the clamp means 11 will be omitted. However, the configuration and operation of the present clamp means 11 and its transport mechanism are described in detail in the specification of the cloth folding apparatus (office reference number P0000004809) according to the invention of the same application.

The folding device 1 of this embodiment is constructed as described above, and the folding operation of the cloth body of the device will be described below. The bending operation of the folding device 1 includes a setting step of setting a work so that it is chucked on the clamp means 11, a conveying step of conveying the clamp means 11 chucking the work onto the rotating sheet 6, and a rotation step. For example, this process includes forming folded pieces on four edges of the work laid on the sheet 6. This step is further divided into two steps of forming a folded piece with two opposite edges. Hereinafter, these will be described in order.

Set step and transfer step: Since these steps are not the subject of the present invention, they will be briefly described. First, an operator aligns one side of the work (each width of one clamp member 51) with the ruler plate 49 of the clamp means 11. In this case, as shown by the solid line in FIG. 7, the cylinder 52 is at the lower position so that the clamp member 51 maintains a gap with the base 48, so that the worker inserts the work through the gap. Then, when the sensor means 53 set at both ends of one clamp member 51 sense that the workpiece is normally inserted, the cylinder 52 displaces the tip end portion to the upper position, and the clamp member 51 is moved to one point in FIG. The work is chucked as shown by the chain line. When all the clamping members 51 complete chucking in this way, the conveying mechanism of the clamping means 11 is operated at the timing of signals from all the sensor means 53, for example, to guide the work onto the rotating sheet 6. This completes the setting process and the carrying process.

This step: The work W laid on the rotary sheet 6 is spread so that the long side direction thereof coincides with the B direction as shown in FIG. 8, for example. At this time, the long side R1 on the right side coincides with the fold forming position shown by D by the work pressing assembly 22 of the folding means 8, or more precisely, the end of the pressing plate 32 by the positioning means (not shown) during work clamping. Is positioned as. Further, by this positioning, the distance Y from the end of the long side R1 of the work W to the rotation center O of the rotary sheet 6 matches the distance X from the short side edge of the work W to the rotation center O. There is. This distance X is set by the feed amount according to the type of work in the above-mentioned transfer process. Then, the folding means 7 at the standby position shown by the alternate long and short dash line in FIG. While maintaining the above, the motor 41 is operated to reach the position of the left long side L1. When the folding means 7 is transferred, the wheel shaft 46 rolls due to the operation of the motor 41,
The pinion 46a meshes with the rack 43, and the rail 4
4, the slider 47 is guided by the erection rod 9
Is conveyed in the direction A on the right side. Operation box 5
In this case, data can be set in advance depending on the type of the work W so that the folding means 7 stops at the fold forming position on the left long side L1.

The bending means 7 and 8 are the left and right long sides L of the work.
When the cylinder 21 is set to the position in the A direction that substantially coincides with R1 and R1, the bending means 7 and 8 are lowered to land the pressing plate 32 on the rotary sheet 6. As a result, the work W is constrained by the pressing plate 32 by a predetermined width inside the fold forming positions C and D of the folded piece P based on the force of the spring 33. At this time, the portion that becomes the folded piece P is in a free state, and the blower tube 3 is struck at the time of landing.
Since air is blown from 7, the portion that becomes the folding piece P is lifted upward (see FIG. 5). After the work state in FIG. 5, the fold forming assembly 23 is
The cylinder 26 is actuated so that it is slid side by side and approaches the work pressing assembly 22 as shown in FIG. Due to the proximity movement of the fold forming assembly 23, the heater 36 covered with the cushioning material 40 enters above the work part that is the folded piece P that is being lifted by the blowing, and the work portion that is the folded piece P is pressed by the pressing plate 32. When it reaches the upper position, it is moved down by a predetermined stroke due to the operation of the cylinder 35. As a result, the heater 36 presses the work portion that becomes the folded piece P. Thereafter, when the cylinder 26 is operated and the work pressing assembly 22 is separated from the fold forming assembly 23 as shown in FIG. 11, the heater 36 is energized. Thereby, folds are formed at the folding line positions C and D according to the width of the folded piece P, and the folded piece P having a desired width can be formed. After forming the fold line, the cylinder 35
Is reset, and the bending means 7, 8 of the work pressing assembly 22 and the fold forming assembly 23 return to the standby position shown by the one-dot chain line in FIG.

Next, in order to form the folded piece on the short side of the work W which is the side in the direction A at present, the rotary sheet 6 is rotated by 90 ° by the turntable means. When the rotary sheet 6 is rotated 90 °, the work W is aligned (parallel) with the long side in the A direction and the short side in the B direction as shown in FIG. 9. In this case, since the distance y from the rotation center O of the rotary sheet 6 to the short side edge of the right side is equal to X by the above-described operation at the time of setting the work and setting the carry amount, the folding means 8 is used for forming the fold line. It matches the position F.
Further, the folding means 7 has a fold forming position E on the left short side L1.
Moved up to the stop. Then, the folded piece P ′ can be formed also on the short side by the same operation as when the fold is formed on the long side. The folded piece P ′ on the short side is a corner that intersects with the previously formed folded piece P on the long side, and is naturally arranged and stacked.

A more detailed description of the operation of the folding means 7 and 8 as described above is described in the cloth folding device (office reference number P0000004810) filed at the same time. Since the cushioning material 40 can be automatically supplied by the winding roller 38 and the supply roller 39, there is no need to replace it. In the above-mentioned embodiment, the four deformation work is formed on each side by the two bending means 7 and 8 in two steps for every two opposite sides. For example, only one fixed bending means 8 is provided. Alternatively, each side may be formed in four steps.

Thus, according to the present invention, the folding means can form a folded piece having an arbitrary width regardless of the size of the work, and it is not necessary to replace the set of the receiving mold and the pressing mold for each size of the work, and the apparatus can be used. Can be downsized. The blower tube 37 that folds the work portion, which is a free folded piece, toward the pressing plate 32 can be replaced with a bristly brush or a simple plate.

[0021]

As described above, according to the present invention, a bending means for simultaneously forming a folded piece for one side of a work is provided for a work laid on a rotating sheet, so that the apparatus is small in scale. The fold can be easily formed with an arbitrary width regardless of the size of the cloth body.

Further, the folding process at the corner where the folded pieces intersect can be performed in the working process of the folding means for forming the folded portion without requiring special work.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of a fabric folding device according to the present invention.

FIG. 2 is a configuration diagram showing a turntable means according to the above embodiment.

FIG. 3 is a configuration diagram showing a bending means according to the above embodiment.

FIG. 4 is a configuration diagram showing the folding means viewed from the line IV-IV in FIG.

FIG. 5 is a configuration diagram of the bending means viewed from the direction B.

FIG. 6 is a configuration diagram of the transfer mechanism of the folding means as viewed from the direction A.

FIG. 7 is a configuration diagram showing a clamp means for chucking one side of a work.

FIG. 8 is an explanatory view showing an operation of forming a folded piece on two opposite sides of a work.

FIG. 9 is an explanatory view showing an operation of forming a folded piece on another two opposite sides.

FIG. 10 is an explanatory view showing a state in which a folded piece is formed.

FIG. 11 is an explanatory view showing a state where the work pressing means is separated from the fold forming means.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Folding device for cloth body, 2 ... Base body, 3, 4 ... Frame body, 7, 8
... Bending means (22 ... Work pressing assembly, 23 ... Fold forming assembly), 9, 10 ... Erection rod, 12 ... Turntable means (6 ... Rotating sheet), 17 ... Motor,
21, 25, 26, 35 ... Cylinder, 27 ... Guide means,
32 ... Pressing plate, 36 ... Heater, 37 ... Blower, 4
1 ... Motor, W ... Work, P, P '... Folded piece.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location D06F 71/00 D 71/38 (56) References JP-A-58-19282 (JP, A) Special features Kai 61-228893 (JP, A) JP-A-3-26289 (JP, A) JP 60-57878 (JP, B2)

Claims (1)

[Claims] 1. A base, a turntable having a rotating sheet on which a cloth is laid on an upper surface of the base, and a side of the cloth which is displaced in a perspective manner with respect to the cloth laid on the rotary sheet. return該折 to form each side of the folded piece of a predetermined width at the edge
Long along the strip and movable in the width direction of the folded strip
Device for folding a cloth body, which has a simple folding means.