JPH0773632B2 - 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 a side edge of a futon as a pretreatment for performing folding sewing on the futon side.

[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. Such folding work on the futon side has a long side, and in the case of manual work, the quality is not stable and the productivity is low. Therefore, a precedent example of a device for automatically performing a folding operation is disclosed at the rear of 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, the folding device described in the above publication has a drawback that a mold is required for each size of the cloth body. 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 There is a drawback that the folding of the folded pieces becomes rough. For this reason, the work of reworking is required later.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fabric folding device capable of forming a stable folded piece with a constant width for a fabric having one side such as a futon. Another object of the present invention is to provide a folding device in which folding at the corners where the folding pieces intersect can be treated aesthetically and does not require rework.

[0005]

According to the present invention, a cloth body is placed.
And the substrate to be, Kuraishi far near strange against the fabric body that is mounted on the base body
A workpiece pressing means for pressing only the fabric body inner folded piece component from edges of said fabric body Te, a floating means for lifting the folded piece component from the substrate, the possible pairs to advance withdrawal displaced lift the workpiece pressing means Form the fold line of the folded back piece
A folding device of the fabric body, characterized in that the folded piece component equipped and in fold eye forming unit that returns folded into fabric body inwardly to.

[0006]

In the apparatus of the present invention, when the work pressing means which is vertically movable toward and away from the upper surface of the substrate is displaced from the standby state at the upper position to the lower position, the work pressing means is located inside the edge by a folded piece. The cloth body is pressed, and the folded piece that is not pressed is lifted from the upper surface by the floating means. Between the lifted folding piece and the upper surface, the fold forming means moves forward and backward relative to the work pressing means to move inward and return the folding piece to the inside to form a folding piece having a predetermined width for one side. It can be formed at the same time.

[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 9 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.

2 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 frame bodies 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. 3, 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 sub-sliding freely facing each other via cylinders 25, 26 and guide means 27, 27 by sliders and rails, respectively. There is. Both ends of the bracket 24 are sliders 28.
Rail 29 attached to the erection rod 9 in a cross shape via the
Supported by.

As shown in FIG. 4, 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) extending vertically 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 crease forming assembly 23 is shown in FIG.
As shown in FIG. 3, a continuous rod 34 similar to the continuous rod 30, and
Cylinder 35 mounted vertically from the connecting rod 34
And a bracket 35b on the tip 35a of the cylinder 35.
And a blower tube 37 that is installed in parallel with the heater 36 and that constitutes a levitation means for raising the edge of the work to the inside of the work by a predetermined width by blowing air to the pressing plate 32 side. It is mainly composed of. Then, as with the work pressing assembly 22, the tip end portion 26a of the cylinder 26 is connected to the continuous rod 34 (see FIG. 4). A cushioning 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 interposed between the heater 36 and the work to avoid direct contact between the heater 36 and the work. The blower tube 37, the take-up roller 38, and the supply roller 39 have brackets 2 at both ends.
It is integrally configured by 3a. In addition, the heater 36
An insulating sheet 36a, which is shown by being shaded, is interposed between the bracket and the bracket 35b.

Further, the mounting structure of the heater 36 will be described with reference to FIGS. 6 and 7. The heater 36 is held by the bracket 35b via the insulating sheet 36a as described above, but the surface opposite to the insulating sheet 36a is made of an insulating material at one end thereof via the conductive member 36c for energization. It is connected to the tip of the mounting shaft 36e. The tip end portion of the mounting shaft 36e is inserted into a through hole 23b formed in the bracket 23a, and a flange portion 36f is formed at the base end, and between the flange portion 36f and the outer wall of the through hole 36d. Is provided with a compression spring 36g. At the other end of the heater 36, the surface of the insulating sheet 36a is fixed to the bracket 23a by a normal bolting, and the conductive surface 36c for energization is connected to the opposite surface.

Next, the transfer mechanism of the folding means 7 will be described with reference to FIGS. 4 and 8. The folding means 7 is moved 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.
The pinion 46a of the wheel shaft 46, which is connected to the output shaft 1 of FIG. 1 via the belt 45, is engaged with the rail 44, and the slider 47 attached to the erection rod 9 is fitted to the rail 44.

Next, the structure of the clamp means 11 will be described. As shown in FIG. 9, 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 is
The guide groove 5 in which the base 48 is formed in the B direction of the top plate 2b
It is designed to be guided by 4, 54. In addition,
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. The configuration and operation of the present clamping means 11 and its transport mechanism are described in detail in the specification of the cloth folding device (office reference number P0000004809) according to the invention of the same application.

The turntable means for rotationally driving the rotary seat 6 is such that a shaft member supporting the rotary seat 6 is supported by a bearing device and the shaft member is driven by a drive source such as a motor. , Since it has nothing to do with the gist of the present invention,
Detailed description is omitted. The configuration and operation of such a turntable means are described in detail in the specification of the cloth folding apparatus (office reference number P0000004811) according to the invention of the simultaneous application.

The bending apparatus 1 of this embodiment is constructed as described above, and the bending operation of the work of the apparatus will be described below. In the bending operation of the folding device 1, the work is clamped by the clamping means 11.
A setting process of setting so that it is chucked,
It is composed of a carrying step of carrying the clamp means 11 chucking the work onto the rotating sheet 6, and a main step of forming folded pieces at, for example, four edges of the work laid on the rotating sheet 6. This step is further divided into two steps of forming a folded piece with two opposite edges. Less than,
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. 9, the cylinder 52 is at the lower position so that the clamp member 51 maintains a gap with the base 48, so that the operator inserts the work through the gap. Then, when the sensor means 53 set at both ends of one clamp member 51 sense that the work 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 have completed the chucking as described above, the conveying mechanism of the clamping means 11 is operated to guide the work onto the rotating sheet 6 at the timing of the signals of all the sensor means 53, for example. This completes the setting process and the carrying process.

This step: Now, as shown in FIG. 10, the work W laid on the rotary sheet 6 has a long side B.
Unfolded to match the direction. 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 rotating sheet 6 is inserted from the end of the long side R1 of the work W.
The distance Y to the rotation center O of the workpiece W coincides with the distance X from the short side edge of the work W to the rotation center O.
This distance X is set by the feed amount according to the type of the work in the above-mentioned transfer process. Subsequently, the folding means 7 at the standby position in FIG. 12 maintains the height position in the standby state, The motor 41 is operated to reach the position of the left long side L1. When the bending means 7 is transferred, the wheel shaft 46 rolls due to the operation of the motor 41, and the pinion 46 is moved.
a is engaged with the rack 43, and the erection rod 9 is conveyed in the right side A direction while the slider 47 is guided by the rail 44. Data can be set in advance in the operation box 5 according to 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 respective bending means 7 and 8 are the long left and right 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 to be the folded piece P is lifted upward (see FIG. 13). After the work state in FIG.
Is sub-slipped by the operation of the cylinder 26 and comes close to 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 the upper side of the work portion that is the folded piece P that is lifted by the air blow,
Workpiece W to be folded back P is further lifted and work W
I try to bend it inside. Finally, when the heater 36 of the crease forming assembly 23 reaches the pressing plate 32, the stroke of the heater 36 is lowered by the operation of the cylinder 35. As a result, the heater 36 presses the work portion that becomes the folded piece P. Then, as shown in FIG.
When the cylinder 26 operates and the work pressing assembly 22 separates from the fold forming assembly 23, 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, the cylinder 35 is reset and the work pressing assembly 22 and the folding means 7 and 8 of the fold forming assembly 23 return to the standby position in FIG.

Next, the rotary sheet 6 is rotated by 90 ° by the turntable means 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. 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. 11. 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 is moved to the stop on the fold forming position E on the left short side L1. 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.

The buffer material 40 such as Teflon will burn out if repeatedly used for contact with the heater 36.
Since the winding dial 38a newly feeds only the heater width, there is no troublesome replacement. by the way,
Since the heater 36 is a long object, it extends considerably longer than usual when energized. In order to absorb this spread, a mounting shaft 36e having a compression spring 36g mounted at one end of the heater 36 is provided in this embodiment. As a result, the compression spring 36
g is in a compressed state when the heater 36 is not energized, and the mounting shaft 36e is guided to the right position shown by the solid line in FIG. When the heater 36 is energized,
The compression spring 36g can be extended to draw the attachment shaft 36e to the left position shown by the chain double-dashed line in FIG. 7, and absorb the extension of the heater 36.

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 die and the pressing die for each size of the work, and the apparatus can be used. Can be downsized. 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.

The levitation means by the air blow tube 37 for lifting the work portion to be the folded piece toward the pressing plate 32 can be replaced by a bristle brush or a simple plate.

[0023]

As described above, according to the present invention, the work pressing means for pressing the inside of the folded body by the amount of the folded piece from the edge of the cloth, the floating means for lifting the folded piece from the work table, and the By providing the folded piece for folding and pressing the lifted piece, the folded piece can be simultaneously formed for one side.
The device can be made small-scale, and it is possible to form a stable folded piece with a constant width for fabrics with long sides such as the futon side.Folding processing at the corner where the folded pieces intersect is special. It can be performed in the work process of forming a turnaround without requiring any 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 bending means according to the above embodiment.

FIG. 3 is a configuration diagram showing the folding means viewed from a line IV-IV in FIG.

FIG. 4 is a configuration diagram of the folding means viewed from the B direction.

FIG. 5 is a structural view of the floating means and the fold forming means as viewed from the B direction.

FIG. 6 is a configuration diagram for explaining a heater related to the fold forming means.

FIG. 7 is a configuration diagram of the fold forming means in FIG. 6 viewed from the direction A.

FIG. 8 is a configuration diagram of the transfer mechanism of the folding means as viewed from the direction A.

FIG. 9 is a configuration diagram showing a clamp means for chucking one side of a work.

FIG. 10 is an explanatory view showing an operation of forming a folded piece on two opposite sides of a work.

FIG. 11 is an explanatory view showing an operation of forming a folded piece on another two opposite sides.

FIG. 12 is an explanatory view showing a standby state of the folding means.

FIG. 13 is an explanatory view showing a landing state of the work pressing means.

FIG. 14 is an explanatory view showing a state in which the crease forming means approaches the work pressing means.

FIG. 15 is an explanatory view showing a formation state of a folded piece.

FIG. 16 is an explanatory view showing a state in which the work pressing means is separated from the fold forming means.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Folding device, 2 ... Base body, 3, 4 ... Frame body, 7, 8 ... Bending means (22 ... Work pressing assembly (work pressing means), 9, 10 ... Construction rod, 17 ... Motor, 21, 21
5, 26, 35 ... Cylinder, 23 ... Fold forming assembly (fold forming means), 24 ... Bracket, 27 ... Guide means, 32 ... Pressing plate, 36 ... Heater, 37 ... Blower tube (floating means), 41 ... Motor , W ... Work, P,
P '... folded piece.

Continuation of the front page (56) Reference JP 58-165889 (JP, A) JP 3-73187 (JP, A) JP 60-21963 (JP, A) JP 1-259893 (JP , A) JP-A-58-19282 (JP, A) JP-A-61-228893 (JP, A) JP-A-1-270890 (JP, A) Actual development 62-83386 (JP, U) Actual development 63-177470 (JP, U) Actual Kaihei 2-90778 (JP, U) Special Public Examination 3-76953 (JP, B2) Actual Public Examination 4-4706 (JP, Y2)

Claims (1)

[Claims] And 1. A substrate fabric body is placed, against the fabric body placed substrate body by far proximal displacement of pressing only fabric body inner folded piece component from edges of said fabric body a workpiece pressing means, a floating means for lifting the folded piece component from the substrate, the workpiece pressing means in pair to advance withdrawal displaceable in the lifted the folded piece min the fabric body to form a fold of the folded piece min folding apparatus of the fabric body, characterized by comprising the in fold eye forming unit that returns folding to <br/> inward.