JPS60128145A - Sheet feeding apparatus - Google Patents

Abstract

PURPOSE:To certainly take-out one by one and transfer the sheets in fear of generation of static electricity, by handling the loaded sheets by a sheet handling means and absorbing one by one and transferring the floated sheet by an absorbing head. CONSTITUTION:A loaded sheet group A is supported from under the sheet supporting base 21 of a sheet supporting means 2, and compressed air or compressed ionized air is blown sideways in the upper part of the sheet group A from a sheet handling means 3. The sheets in the upper part of the sheet group A are separated one by one and floated horizontally by said blowing, and the sheet absorbing head 41 of a sheet absorbing feeding means 4 under negative pressure is lowered, and when the head 41 reaches the lower limit position contiguous to the inside of a cage 1 from the upper-edge opened part 13 of the cage 1, the lower-edge absorbing surface of the head 41 absorbs only the floating uppermost sheet B. Then the head 41 is raised, and the sheet B is pulled upwardly by bend the upper-edge opened port 13 of the cage 1 and transferred to a prescribed position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet feeding device that is used to automatically feed protective sheets one by one onto the surface of the contents of, for example, cosmetic Konbaku IIJJ products.

Cosmetic compact products are assembled by fitting the contents of a solid cosmetic in an inner tray into a shallow concave chamber of a tray-like container that is equipped with an integral or separate lid. In order to protect the cosmetic surface of the contents during the assembly process, a thin protective sheet is applied to the surface of the contents.

However, in the assembly process of cosmetic compact products,
The reality is that the protective sheet is applied manually one by one to the surface of the contents of the container when the lid is open, and this poses an obstacle to improving the efficiency of the assembly work of cosmetic compact products. Combined with the required labor costs, this resulted in a significant increase in product costs.

In particular, since this protective sheet for the stem is generally made of resin and has the shape of a thin plate, in order to improve work efficiency, a large number of these protective sheets are stacked and are taken out one by one starting from the topmost protective sheet to cover the surface of the contents. When loading the protective sheets into a storage container, static electricity is generated between the stacked protective sheets, and even if you try to separate them one by one, you may accidentally take out two or more protective sheets at the same time, causing damage to the contents. There is a risk that the protective sheet may be placed on the surface, and it is not only difficult to support the thin protective sheet by hand, but also may accidentally deform or stain the protective sheet when supported. There were other inconveniences.

The present invention solves the above-mentioned conventional drawbacks, and mainly involves automatically and continuously depositing a protective sheet for transmitting light waves onto the surface of the contents of a cosmetic compact product one by one and reliably reaching a predetermined portion. The object of the present invention is to provide a sheet feeding device that can feed sheets.

That is, one aspect of the present invention includes a cage having an opening in the top wall and surrounding a stacked sheet group, and a vertically movable seat support stand positioned below the cage and supporting the stacked sheet group from below. and seat support means.

a sheet handling means for floating the upper sheet by injecting compressed air from the side of the upper part of the stacking sheet group; The gist of the present invention is to provide a sheet feeding device characterized by comprising a sheet suction and feeding means having a sheet suction head that can be raised and lowered to suction and transport floating sheets.

To further explain the specific embodiment of the present invention in detail based on the drawings, in FIG. (2) is a seat support means installed below the cage (1) to keep the height of the upper end of the loaded sheet group (A) constant at all times; (3) is the loaded sheet group Compressed air or compressed ionized air is injected from the side toward the top of the stacked sheet group (A).
) (B) is a sheet handling means for floating the upper sheet and handling the upper sheet; (4) is disposed above the upper end opening of the cage (1), and A sheet adsorption/feeding means for adsorbing only one sheet (B) and transporting it to a predetermined position;
) is a sheet detecting means for detecting the presence or absence of a sheet at the highest set height and sending an activation signal to the sheet supporting means (2).

The cage (1) has a side wall inner circumferential guide portion (11) formed on an inner circumferential smooth surface for stacking a large number of sheets in an aligned state and smoothly guiding this stacked sheet group (A). an opening (13) formed in the center of a ceiling wall (12) formed at the upper end of the cage (1);
) has a smooth lower surface. Further, the opening (13
), the sheet suction head (41) of the sheet suction/feeding means (4) sufficiently passes through the sheet suction head (41), and the sheet suction head (41)
It is formed in a size that allows the sheet (B) adsorbed by 41) to pass through in the adsorbed state. Furthermore, the cage (
The side wall portion (1) and its top wall portion (12) are formed so that the sheets floating inside the cage (1) due to the jetting by the sheet handling means (3) will not be scattered to the outside.

Further, the sheet supporting means (2) is a stacked sheet group (A).
a vertically movable seat support base (21) that supports the seat support base (21) from below; a lifting device (22) for vertically moving the seat support base (21); and a drive device (23) for the lifting device (22). The rotary power of a motor or the like built in the drive device (23) is converted into vertical power by existing transmission means such as a rank or a pinion inside the lifting device (22). The Sea 1 support stand (21) is located below the center of the cage (1), is formed so as to be able to enter from the lower end opening of the cage (1), and stabilizes the stacked sheet group (A). It is formed in a size that can be supported in a suspended state.

Further, the sheet handling means (3) is provided at a slightly higher position than the sheet detecting means (5), and its air discharge port (31
) are stacked so as to face the side wall opening of the cage (1) and inject compressed air or compressed ionized air parallel to the upper part of the loaded sheet group (A) from the side. The separating means (3) is connected to a compressed air or compressed ionized air supply device (not shown).

Further, the sheet adsorption/feeding means (4) includes the cage (1).
) A sheet suction head (41) that is located above the center of the upper end opening (13) and can be raised and lowered;
1), a moving device (42) that is connected to the sheet suction head (41) and capable of raising and lowering the sheet suction head (41) and handling the sheet suction head (41) in a predetermined sheet transport direction; It is equipped with a suction device. The sheet suction head (41) is formed of a thin hollow cylindrical body whose lower end suction surface is smooth and does not easily generate static electricity.

By applying the suction force of the suction device such as a vacuum pump or a blower, the lower suction surface of the suction head (41) of the sea 1 is made to have a negative pressure.

The diameter of the sheet suction head (41) is sufficiently small compared to the size of the sheet. In the example, when the sheet is a circular polyester film sheet with a diameter of 60 mm and a thickness of 40 μm, ) with a lower end suction part diameter of 5Φ was used.

Further, the sheet suction head (4) is operated by the moving device (42).
1) The lower limit position is the top wall (12) of the cage (1).
It is set slightly below the bottom surface.

Further, the sheet detecting means (5) outputs an activation signal to the sheet supporting means (2) to maintain a constant height of the upper end of the stacked sheet group (A), and An existing reflective phototube or the like is used to detect the presence or absence of a sheet from the upper side of group (A). When this sheet detecting means (5) detects the absence of a sheet or only a floating sheet above the stacked sheet group (A), it outputs an activation signal to the sheet supporting means (2) to support the sheet. When the table (21) is raised by a predetermined amount and the sheet detection means (5) detects the stacked state of sheets at the upper part of the stacked sheet group (A), the seat (21) is raised by a predetermined amount.
) is left in a stopped state. The sheet detection means (5) detects only the stacked sheet group (8) in which a large number of sheets are stacked, and detects the floating sheets floated by the jetting pressure of the sheet sorting means (3). is set to an undetected sensitivity.

In the above configuration, the operating state of the device will be explained. First, as shown in FIG. The group of stacked sheets (A
) Compressed air or compressed ionized air is blown from the sea 1 and the separating means (3) toward the upper side of the container. In this state, the plurality of sheets located at the top of the stacked sheet group (A) are separated one by one and floated horizontally by the blowing Lj of compressed air or compressed ionized air. This floating sheet is attached to the side wall and top wall (1) of the cage (1).
12), so it does not scatter outside.

Therefore, as shown in FIG. 3, the sheet suction head (41) of the sheet suction and feeding means (4) is lowered while maintaining the negative pressure, and the sheet is sucked into the cage (1) through the upper end opening (13) of the cage (1). When the lower limit position is reached, only the floating uppermost sheet (B) is sucked by the lower end suction surface of the three-sheet suction head (41).

At this time, since a suction completion signal is generated from the sheet suction and feeding means (4), the sheet suction head (41) rises, and the sheet (B) is as shown in FIG.

The sheet rises while being attracted to the sheet suction head (41), passes through the upper end opening (13) of the cage (1) while being bent, and is pulled out to the upper outside of the cage (1) as shown in FIG. This sheet) (B) is the same sheet suction head (
After being further transferred to a predetermined position while being adsorbed to 41), the adsorption is released by a suction stop signal and placed on the surface of the contents of, for example, a cosmetic compact product. Thereafter, the sheet suction head (41) returns to its original position and repeats the same sheet suction and feeding operation.

When the upper end position of the stacked sheet group (A) inside the cage (1) is lowered and the sheet detection means (5) detects the absence of sheets or only floating sheets, the sheet detection means An actuation signal is output from (5) to the sea I/supporting means (2).

At δ when the drive device (23) is started and the sheet support base (21) is raised by a predetermined amount, the stacked sheet group (A) supported by the sheet support base (21) is detected by the seat of the sheet detection means (5). 1. Reach the height of the presence detection position.

When the sheet detection means (5) detects the presence of a sheet, it outputs a stop signal to stop the drive device (23).

In addition, the ionized air injected from the sheet I/separation means (3) is used when the sheets are formed of a material that is likely to generate static electricity between the sheets 1 and 1 of the stacked sheet group (A). If the sheets are made of a material that does not pose a risk of generating static electricity between the stacked sheets, normal air may be injected.

Further, the sheet detecting means (5) does not necessarily need to be installed; for example, the sheet suction head (41)
), and the intermittent drive of the sheet supporting means (2) is maintained, the same continuous operation as described above is performed, regardless of the presence or absence of the sheet detecting means (5).

Since the present invention has a gauzy structure, it exhibits remarkable effects as described below.

a) The work of transporting 11 plate-shaped sheets one by one to a predetermined position is performed automatically and continuously.

For example, in the assembly process of compact cosmetic products, it is possible to ensure a significant improvement in work efficiency, and in combination with the reduction in labor costs, it can promote a reduction in product costs.

b) Even if the sheets are thin and made of a material that may generate static electricity between the stacked sheets, the sheet suction head can pick up the sheets separated and floated by the sheet handling means one by one. Since the sheets are transported, the work of taking out the sheets one by one is reliable.
There is no risk of accidentally taking out two or more sheets at the same time as in the conventional case.

C) Furthermore, if the opening at the top of the cage is made as large as possible, there is no risk of plastic deformation of the sheet when it passes through the opening, and the sheet will be sucked and transferred by the sheet suction head, making it extremely easy to use. It is hygienic and there is no risk of contamination.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part of a sheet feeding device showing an embodiment of the present invention, and FIGS. 2 to 6 are longitudinal sectional side views of main parts showing the operating state of the device of the present invention. (1) is a cage, and (2) is a seat support means. (3) is a sheet sorting means, (4) is a sheet adsorption/feeding means, (5) is a sheet detection means, (11) is a side wall inner peripheral guide portion, (12) is a top wall portion, and (13) is an opening portion. (21) is the Sea I/support platform, (22) is the lifting device, (2
3) is a drive device, (31) is an air discharge port, (41) is a sheet suction head, (42) is a moving device, (A) is a stacked sheet group, and (B) is a sheet.

Claims (1)

[Claims] 1. A cage having an opening in the top wall and surrounding the stacked sheets, and a vertically movable seat support stand located below the cage and supporting the stacked sheets from below. and a sheet handling means for injecting compressed air from the side to the upper part of the group of stacked sheets to float the upper sheet. a sheet suction and feeding device having a sheet suction head that is disposed above an opening at the upper end of the cage and that can be raised and lowered to suction and transfer the uppermost floating sheet in the cage through the opening; . 2. The cage surrounds the entire side peripheral surface of the loaded sheet group,
The sheet feeding device according to claim 1, further comprising a side wall inner peripheral guide portion formed on the inner surface of the side wall. 3. The sheet feeding device according to claim 1, wherein the cage surrounds a part of the side peripheral surface of the stacked sheet group and forms a side wall inner peripheral guide portion on the inner surface of the side wall. 4. The sheet feeding device according to claim 1, wherein the compressed air injected from the sheet handling means is ionized air. 5. The sheet suction head of the sheet suction and feeding means has a negative pressure suction structure. A sheet feeding device according to claim 1.