JPH0479989A - Stacker - Google Patents

Abstract

PURPOSE:To surely transport cloths onto a table and hardly cause static electric ity to be generated between the cloths and the table so that the cloths can be surely stacked by forming a transport section for transporting the cloths in a stacker with a plurality of ringlike bodies driven by a training-over trans mission device. CONSTITUTION:A slide table 102 for transporting cloths in a stacker 100 while nipping the cloths with rollers 3 is disposed below a transport section 1 to be movable to one side. When the rear ends of the cloths are detected by sensors 103a, 103b, a slide cylinder 104 is driven and the slide table 102 slidably retreats into a receiving section 120 so that the cloths are stacked on an underlying receiving tray 105. On the other hand, as soon as the table 102 retreats, the transport section 1 is reversely lifted by a drive force of a cylinder 10 to be ready for the next transport. Thus, since the transport section 1 transports the cloths into the stacker with the rollers 3, it provides line contact differing from surface contact of a belt, and since the respective rollers 3 are divided into three, static electricity is very hardly generated and the cloths are cleanly dropped.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a stacker for stacking fabrics,
More specifically, the present invention relates to an improvement in a conveying section that conveys fabrics into a stacker body.

[Prior Art] Conventionally, the conveyance means in the conveyance section of a stacker has been carried out by placing a belt in close proximity to a table, and rotating and drawing the belt while crimping the fabric between them. They are arranged on the table while making surface contact.

Then, when the table is retracted, the fabrics fall downward due to gravity and are stacked on the receiving part.

[Problem to be solved by the invention] However, in reality, when the table is retracted due to the electrostatic induction force of static electricity generated between the belt and the fabric, some of the fabric remains on the belt and does not fall cleanly. There was a problem. As a result, there were cases in which, for example, the fabric was stacked in a bent state. Since the stacker is used to stack fabrics in an orderly manner, it is really inconvenient for such problems to occur frequently. Furthermore, after some fabrics have been conveyed or when processing synthetic fiber blend fabrics, static electricity increases considerably, and in extreme cases, the fabrics may stick tightly to the belt and remain on the belt without falling off at all. In addition, when fabrics were conveyed one after another, they could not be stacked properly and the stacking had to be done again manually.

In this case, as a preventive measure, it is considered to install a static eliminator or use conductive fibers.

However, the electrostatic induction force is generated as an extremely large value when the table is retracted, that is, at the moment when the fabric and the table are separated.

For example, when a 100% polyester fabric is transported using a Teflon belt using a conventional belt-type transport means, the static electricity at the moment the table is retracted is 10 to 20 kV (current collector type measuring device, Kasuga Denki Co., Ltd. KS-525). The value (measured with a mold) is instantaneously more than 10 times the value before evacuation.

In some cases, it is necessary to eliminate such large static electricity, but it is not possible to eliminate the entire fabric instantly, and even with stackers that have taken these preventive measures, some of the fabric may still remain on the belt. There were many. Furthermore, installing a static eliminator increases the size of the device,
Another drawback of conductive fibers is that they are expensive.

In addition, a preventive measure has been proposed in which ions are sprayed by a corona discharge machine, but it is known that such a measure does not have a static neutralizing effect in conventional stackers, where the fabric is tightly attached to the belt with no gaps.

[Means for Solving the Problems] This invention is intended to solve the above-mentioned problems all at once, and the gist thereof is to provide a conveying section for conveying fabrics from outside the main body, a lower position of the conveying section, and a lower position of the conveying section. In the stacker, the stacker includes a table that is movable between retracted positions from a lower position, and a receiving part that stacks the fabrics below the conveyor as the table moves to the retracted position. The structure consists of a plurality of ring-shaped bodies driven by a winding transmission device.

[Function] With this configuration, each ring-shaped body comes into point or line contact with the fabric, and the number of contact areas is reduced, making it difficult for static electricity to be generated. Since each ring-like body is driven by a winding transmission device, the fabric can be reliably conveyed into the table.

[Example] Next, an example of the present invention will be described in detail based on FIGS. 1 to 4.

The basic framework of the stacker 100 is a metal body frame 101 that is generally rectangular parallelepiped. The fabric conveying section 1 is moved to the top frame 10 of the main body frame 101 by the frame support 17 and the height adjustment knob 15 at the upper part of the stacker 100.
It has been suspended since 1a.

This conveyance section l is a long metal frame 5 with a cross-sectional shape.
, and a plurality of rollers 3 arranged in parallel between the side plates of the metal frame 5, the whole has a plate-like shape extending in the horizontal direction.

The innermost end of the frame 5 is connected to the frame support 17
It is pivoted so that it can swing up and down.

The roller 3 is a cylindrical rotating member made of urethane rubber, and is inserted into a rotating shaft 7 that is divided into three parts and installed between the side plates of the metal frame 5.

The roller 3 is arranged so that the lower apex thereof is at least below the lower end line of the side plate of the frame 5. In this example, there are twelve rotating shafts 7 to which these rollers 3 are inserted, and they are arranged in parallel at equal intervals in the horizontal direction.

A toothed pulley 4 is inserted between each of the three divided parts of each roller 3, and a timing belt 2 is wound around these toothed pulleys 4 that are connected in a row direction, and a two-row winding transmission system is created. is configured.

In this winding transmission system, pressure pulleys 6 rotatably supported by a metal frame 5 are arranged at every second roller 3, and adjacent toothed pulleys 4 and timing belts 2
The meshing relationship has been improved. Further, additional free pulleys 6a are rotatably supported by the metal frame 5 near the rollers 3 at the frontmost and innermost portions in order to improve the meshing relationship.

In addition, a toothed drive pulley 13 is inserted into one end of the rotating shaft 7 at the forefront of the loading side, and the driving force of the motor 11 mounted on the upper surface of the frame 5 near the loading side is transferred from the toothed transmission pulley 14 to another. The driving force is transmitted by the timing belt 12, and the toothed pulley 4 and the timing belt 2 are driven by this driving force, and the roller 3 is rotated.

Further, behind the motor 11, a cylinder 10 for vertically operating the transport section 1 is mounted, and knobs 10a and 1Ob for controlling the operating speed thereof are provided. A bolt 15b is protruded from the upper part of the piston rod of the cylinder 10 via a connecting plate 19, and the height of the roller 3 can be adjusted by adjusting the amount of screwing of an adjustment knob 15a screwed onto the upper end of the bolt 15b. This allows for positioning.

On the other hand, a horizontal elongated hole 9 for adjusting the tension of the timing belt 2 is bored at a position on the side surface of the frame 5 where the innermost rotating shaft 7 is inserted. By adjusting the screwing amount of the bolt 8, the rotating shaft 7 is slid back and forth between the elongated holes 9 through an adjustment mechanism (not shown), so that the timing belt 2 has a desired tension.

Further, on the side surface of the frame 5, a vertically elongated hole 18 is bored at a position through which each intermediate rotating shaft 7 is inserted, and normally the rotating shaft 7 inserted into this elongated hole 18 is connected to a timing belt. It is loosely fitted while being biased upward by the tension of 2. Note that the fixing pin 18a prevents the rotating shaft 7 from shifting in the axial direction.

Below this conveying section l is a slide table 102 that conveys the fabrics into the stacker 100 while holding them between the rollers 3.
is arranged so as to be movable to one side.

When the main sensors 103a and 103b provided on the top frame 101a detect the completion of carrying in the fabrics, the slide table 102 is moved to a retracted position within the storage section 120 provided behind the main body frame 101 by driving the slide cylinder 104. As a result, it is retracted from a position below the conveying section l.

Furthermore, a receiving tray 105 for stacking falling fabrics is disposed below the transport section 1 and the slide table 102.

Receptor sensors 106a and 106b are provided between the receptacle 105 and the slide table 102, and a receptacle cylinder 107 detects the height of the stacked fabrics.
The height of the fabric is automatically adjusted so that it remains constant near the slide table 102 at all times.

Further, a conveyor 108 for conveying fabrics into the stacker 100 is disposed on the outside of the main body frame 101 on the carry-in side so that the conveyor part is flush with the surface of the slide table 102.

A control box 110 having an operation panel is attached below the conveyor 108.

Now, how to use this stacker 100 will be explained next.

First, the fabrics are conveyed toward the stacker 100 by driving the conveyor 108 . When the front end of the fabric is introduced into the main body frame 101, the main sensor 103a,
03b senses the introduction, and the transport section 1, which is normally pulled up, descends using the lower end of the frame support 17 as a fulcrum by the driving force of the cylinder IO. At the same time, the roller 3 is moved by the motor 11. Drive pulley 13. Timing belt 12. Transmission pulley 142 rotation shaft 7. Timing belt 2. The fabric is rotated by the driving force transmitted to the pulley 4, and the fabric is moved between the roller 3 and the slide table 102.
It is conveyed to a predetermined position on the table 102 while being pressed between. And sensors 103a, 103
When the rear end of the fabric is detected by b, the slide cylinder 104 is driven and the table 102 is moved into the storage section 120.
The fabrics are slid inside and stacked on the tray 105 located below.

On the other hand, at the same time as the table 102 is retracted, the transport section 1 is raised by the driving force of the cylinder 10, contrary to the above, to prepare for the next transport. It should be noted that the table 102 is also designed to quickly return to its original position after falling fabrics. Also, as the number of stacked fabrics increases, the receiving skin sensors 106a and 10
6b senses this and drives the receiver cylinder to move the receiver tray 105 downward.

Note that a series of these controls is performed by a control box 110.

With this configuration, the conveyance section 1 uses rollers 3 to convey fabrics into the stacker, so there is no surface contact like a belt, but a line contact, and each roller 3 is divided into three parts. Therefore, it is extremely difficult to generate static electricity, and fabrics fall off cleanly.

Furthermore, since the timing heald 2 is provided between the divided rollers 3, even if charged fabrics are introduced, they will not be caught up in the rollers 3.

Furthermore, since the timing belt 2 is used as a two-row winding transmission system, the conveyance section 1 is well balanced (no metal contact occurs).

Furthermore, elongated holes 9, 18, etc. are provided so that the tension of the roller 3 can be adjusted according to the type of fabric.

In addition, the conveyance of fabrics, stacking them on the receiving tray 105, etc. are automated using sensors, making it a very efficient device.

Such an excellent effect appears as a remarkable difference compared to the conventional belt method regardless of the charge density of the fabric. When compared with the case of conveying fabrics, the stacker of this embodiment shows very good results.

Although one embodiment of the present invention has been described above, the present invention can also be implemented in other embodiments.

For example, as shown in FIG. 5, it is also possible to alternately arrange the rollers 3 divided into three parts.

In this way, static electricity is less likely to be generated and is particularly effective for fabrics made of blended synthetic fibers.

Further, in the above embodiment, the plurality of ring-shaped bodies 3 are composed of rollers, but it is also possible to construct them by arranging a large number of disc-shaped bodies. This makes it more difficult for static electricity to occur.

In addition, in the above embodiment, the timing belt 2 is placed between the rollers 3.
However, it is also free to arrange this on the rotating shaft 7.

In addition, the present invention can be modified and implemented without departing from the spirit thereof, such as by adding knurling to the surface of the roller 3.

[Effects of the Invention] As described in detail above, the present invention provides a stacker with a plurality of ring-shaped bodies driven by a winding transmission device as a conveying section for conveying fabrics.

As a result, the fabrics can be reliably conveyed onto the table, and static electricity is less likely to be generated between the fabrics and the table (thus, the fabrics can be stacked reliably).

[Brief explanation of the drawing]

FIG. 1 is a front view of a conveyance section in a stacker that is an embodiment of the present invention, FIG. 2 is a rear view of the same conveyance section, FIG. 3 is an explanatory diagram illustrating the drive section of the conveyance section, and FIG. 4 5 is a front view of a stacker according to the same embodiment, and FIG. 5 is a side view thereof. Moreover, FIG. 6 is a partially cutaway plan view illustrating a conveying section in another embodiment. 1... Conveyance section 2... Timing belt 3...
Roller 100 which is a ring-shaped body... Stacker 102
...Slide table 105...Receiver patent applicant Shinko Kogyo Co., Ltd.

Claims (1)

[Claims] 1. A conveyance section (1) for conveying fabrics from outside the main body, and a conveyor section (1) provided movably between a lower position of the conveyor section (1) and a retreat position for retreating from the lower position. Table (102)
and a receiving part (105) for stacking the fabrics below the transport part (1) as the table (102) moves to the retracted position. A stacker comprising a plurality of ring-shaped bodies (3) driven by a winding transmission device. 2. The stacker according to claim 1, wherein the plurality of rings (3) are rollers. 3. The stacker according to claim 1, wherein the winding transmission device uses a timing belt (2).