JPH0240048Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a fabric folding device, and particularly to a fabric folding device that does not apply strong pressing force and does not create folding creases.

Conventional technology A conventional general fabric folding device has a structure in which a shake-off device shakes off a certain width of fabric onto a flat fabric holder and folds it over itself. A pressing force acts on the
The folding edges are pressed and the folds tend to crease.

For this reason, when folding fabrics such as soft knitted fabrics, which are prone to change in texture due to the effect of pressing force and which are prone to creases at the folded edges, we recommend using a chevron fabric as shown in Figure 1 with reference numeral 1. A pedestal is used.

Problems to be Solved by the Invention Conventionally, the fabric 2 was attached to the chevron-shaped fabric holder 1 shown in FIG.
When folding the cloth as shown by reference numeral 3, press the outermost layer of cloth by hand by gently stroking the surface of the outermost layer with a ruler-like presser rod. Although the folded edge 4 is not too bulky and maintains an orderly shape, the above-mentioned work must be performed on both sides of the chevron cloth pedestal.
It has the disadvantage of requiring a lot of manpower.

Therefore, the present invention provides a folding device using a chevron-shaped cloth holder, which can press the cloth most effectively and automatically when folding any kind of cloth, thereby reducing labor. It was devised for the purpose of achieving this.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention has a horizontally long chevron-shaped cloth holder disposed directly below the cloth shaking-off device.
The cloth push rods are arranged horizontally parallel to the length direction of the chevron cloth holder, and both ends of each cloth push rod are supported by the left and right lifting rods, and each set of left and right lifting rods is connected to the chevron cloth holder. is supported by separate rocking bodies below the cloth support, and each rocking body is a rocking body attached to the machine frame with its axis located in a single horizontal plane parallel to the length direction of the cloth support. Each rocking body is equipped with a lifting device that is rotatably supported on a shaft and that can adjust the lifting distance of the lifting rod within the range from the upper part of the chevron-shaped cloth holder to the lower part of the holder. and a swinging drive device capable of adjusting the swinging distance of the swinging body, and the movement locus of the press bar by the lifting rod lifting device and the swinging drive device of the swinging body is at least a certain length. In the second half of the process of shaking off the fabric, the structure is such that it intersects with the folded edge of the fabric, so that the fabric is shaken off onto the chevron-shaped fabric holder, folded, and stacked on the surface of the fabric. The pressure applied by the presser rod can be adjusted to any desired range, so that the presser can be pressed most effectively and automatically.

Function In the present invention, the cloth push rod is supported by the lifting rod supported by the rocking body, so the cloth push rod is stacked on the chevron-shaped cloth holder by the operation of the lifting rod's lifting and lowering device and the swinging drive device. It moves in a closed motion trajectory, moving the surface of the cloth from above to below while pressing it, moving away from the surface of the fabric and moving from below to above, and again pressing the surface of the fabric while moving from above to below, Furthermore, by adjusting the lifting distance of the lifting device and the swinging distance of the swinging drive device, the movement trajectory is set such that the cloth pushing rod intersects the folded edge of the fabric at least after the middle stage of the shaking-off process of the fabric. Therefore, depending on the type of fabric, the pressure on the fabric surface or the folding edge can be adjusted to be strong or weak at any necessary point during the folding process, and the process can be carried out automatically.

Embodiment The drawing shows an example of implementation, and a horizontally long chevron-shaped cloth pedestal 1 is placed directly below a shake-off device (not shown), and the fabric 2 is fed out while being shaken in the direction of the double arrow A. The cloth is then folded over a constant width on the chevron-shaped cloth pedestal 1 to form a folded edge 4 and a folded layer shown by reference numeral 3 in FIG. 4.

In the present invention, cloth pushing rods 7 and 8 are disposed horizontally on the outside facing both left and right sides 5 and 6 of the chevron-shaped cloth holder 1, parallel to the length direction of the holder.

Each of the push rods 7 and 8 has both ends connected to a lifting rod 9,
10, 11, and 12.

In the illustrated example, the presser rods 7 and 8 have springs 13 and 14,
15,... are supported on the lifting rods 9 to 12 so as to be able to elastically displace in the direction of the double arrow B, so that excessive pressing force does not act on the fabric surface when it comes into contact with the fabric surface, as will be described later. is taken into consideration.

On the machine frame 16 below the chevron cloth holder 1 fixed to the machine frame 16, there is a
A swing axis 1 having its axis in a single horizontal plane parallel to
7, 18 are attached, left and right rocking bodies 19, 20 are swingably disposed on the shafts 17, 18, and each set of the lifting rods 9 to 12 is supported by the rocking bodies 19, 20. .

Each rocking body 19, 20 is attached with lifting devices 21, 22 for the lifting rods 9 to 12 and a rocking drive device 23.

Since the above-mentioned lifting devices 21 and 22 are symmetrically arranged and have the same structure, the structure of the lifting device 21 will be explained below.

As shown in FIGS. 1 and 2, the rocking body 19
The guide rod 26, with brackets 24, 25,
27 is fixed in a direction perpendicular to the swing axis 17, and guide blocks 28, 29 at the bases of the elevating rods 9, 10 are fitted onto the guide rods 26, 27 so as to be movable up and down.

On the other hand, the shelf board 30 fixed to the rocking body 19 has
A motor 31 that rotates in forward and reverse directions and a transmission 32 are fixed, and a drive shaft 33 rotatably supported by a rocking body 19 is interlocked with the transmission 32 by a drive belt device 34, and both ends of the drive shaft 33 are connected to each other by a drive belt device 34. chain wheel 3
5, 36 and chain wheels 37, 38 arranged below the guide rods 26, 27, a rotating chain 39,
40 is rotated, and the rotary chains 39 and 40 are rotated forward and backward in the direction of the double arrow C by the motor 31.

The aforementioned guide blocks 28, 29 are connected to the aforementioned rotating chains 39, 40, and balance weights 41, 42 are connected at positions opposite to the connecting points.

Therefore, when the rotary chains 39, 40 are rotated in the direction of the double arrow C by the rotation of the motor 31, the guide blocks 28, 29 are moved up or down, and the elevating rods 9, 10 are also moved accordingly. Guide block 26,
27, and the press rod 7 is raised and lowered.

Within the vertical movement locus of the guide blocks 28, 29 are limit switches 43, 44 whose positions can be adjusted up and down.
A limit switch 44 is inserted into a control circuit for moving the guide blocks 28 and 29 upward after stopping their downward movement, and the limit switch 43 is a control circuit that controls stopping the upward movement and starting the downward movement after a predetermined period of time has elapsed. inserted into the circuit.

Further, the swing drive device 23 described above includes a hydraulically driven cylinder 46 supported on the machine frame 16 by a shaft 45 so as to be swingable in a direction orthogonal to the swing shafts 17 and 18;
It is composed of a piston rod 47 and a link mechanism 48, and the piston rod 47 is connected by a link 51 to one end of a link 50 rotatably supported at the center by a support shaft 49 of the machine frame 16. It is rotatably connected to the rocking body 19 through a link 52 and around a shaft 53 . The other symmetrical end of the link 50 is rotatably connected to a shaft 55 of the rocking body 20 by a link 54.

Because of the above structure, when the piston rod 47 reciprocates in the direction of the double arrow D, the links 52, 54
Via the rocking bodies 19, 20 and the lifting rods 9, 1
0, 11, and 12 are oscillated about the oscillation axes 17 and 18 so as to face each other in the direction of the double arrow B.

The above-mentioned cylinder 46 and piston rod 47 are provided with a limit switch 57 and a limit switch 56 such as a magnetic proximity switch whose position can be adjusted to lengthen or shorten the distance between the limit switch 57 and the switch 57 on a single generatrix of the cylinder 46. By adjusting the position of the limit switch 56, the piston rod 4
7, that is, the swing drive device 2
3 can be adjusted to lengthen or shorten, and by this adjustment, the double arrow B of the presser rods 7 and 8 can be adjusted.
The swinging distance in the direction is adjusted to be long or short.

The control circuit (not shown) in which the limit switches 56 and 57 are inserted includes a control device for temporarily stopping the operation and restarting the operation after a predetermined period of time has elapsed.

Since the folding device according to the present invention has the above-described configuration, when both the lifting distances of the lifting devices 21 and 22 and the swinging distance of the swinging drive device 23 are driven with the longest stroke, the lifting rods 9, 10, 11, In FIG. 1, the press rods 7 and 8 supported at the ends
It moves along a trajectory of E, F, G, and H, and stops at point E for a predetermined period of time.

In addition, the lifting distance of the lifting devices 21 and 22 and the swinging distance of the swinging drive device 23 are controlled by the limit switch 4.
3, 44 or 56, 57, the movement trajectory of the presser rods 7, 8 can be arbitrarily changed or set as shown in I, J, K, L, etc. in FIG. 3, and corresponds to point E. It can be stopped for a set period of time at certain points.

As shown in FIG. 4, the fabric 2 that is shaken off onto the chevron fabric holder 1 and folded and stacked has a height W of the folded edge 4 in the folded layer 3 of approximately 350 mm.
When the thickness is on the order of mm, the stacking becomes extremely unstable, and this phenomenon generally occurs in the latter half of the shaking-off process.

Therefore, in the present invention, as shown in FIG. 4, the movement trajectory
The lifting distance of the lifting devices 21 and 22 and the swinging distance of the swinging drive device 23 are set so as to intersect the line of the folding edges 4.

In addition, pressing and stroking the fabric with the fabric pressing rods 7 and 8 means that even if the entire surface of the fabric is pressed, the folded edge 4
The lifting device 21, 2
2 and the swing drive device 23 can be adjusted as desired. When switching to separate a long piece of work fabric at a predetermined seam by sewing unit fabrics, etc., the folding device is automatically stopped by a detection signal from a seam detector (not shown), and the set time elapses. You can have it restart automatically afterward.

Effects The present invention has the structure and operation described above, and when folding any type of fabric using a folding device using a chevron-shaped fabric holder, it is possible to fold the fabric with the strength and pressing area suitable for the fabric. This has the effect of automatically and continuously pressing the cloth.

Furthermore, the presser foot can be easily adjusted over a wide range by two means: adjusting the lifting distance of the lifting device of the lifting rod and adjusting the swinging distance of the swinging drive device of the swinging body.

Also, since the press is carried out using a press bar, which is a rod-shaped body, it is different from pressing using a flat press plate.
Since it is performed as a stroking action on the fabric surface,
It also has the effect of preventing the fabric from lifting or wrinkling when the fabric pressing plate is separated.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of an example of the embodiment, FIG. 2 is a schematic left side view of what is shown in FIG. 1, and FIGS. 3 and 4 are explanatory views of the operation of the apparatus according to the present invention. 1: Yamagata cloth holder, 2: Fabric, 4: Folded edge,
5, 6: Side, 7, 8: Push rod, 9, 10, 1
1, 12: Lifting rod, 16: Machine frame, 17, 18: Swing shaft, 19, 20: Swing body, 21, 22: Elevating device, 23: Swing drive device.

Claims (1)

[Scope of utility model registration request] A cloth pushing rod is arranged horizontally in parallel with the length direction of the chevron-shaped cloth holder on the outside facing both left and right sides of the horizontally long chevron-shaped cloth holder located directly below the fabric shaking-off device, Both ends of each push rod are supported by left and right lifting rods, and each pair of left and right lifting rods is
Below the chevron-shaped cloth cradle, each oscillating body is supported by a separate rocking body, and each rocking body is attached to the machine frame with its axis located within a single horizontal plane parallel to the length direction of the cloth cradle. Each rocking body is rotatably supported on a rocking shaft, and each rocking body has a lifting rod that can adjust the lifting distance within the range from the top of the chevron-shaped cloth pedestal to the bottom of the pedestal. A lifting device that can be moved up and down and a swinging drive device that can adjust the swinging distance of the swinging body are attached, and the movement trajectory of the press bar by the lifting device of the lifting rod and the swinging drive device of the swinging body is as follows. A fabric folding device configured to intersect with a folded edge of the fabric at least in the latter half of the shaking-off process of a certain length of fabric.