JPS6048813A - Quantitative feeding device for object to be transferred - Google Patents

Abstract

PURPOSE:To enoughly uniformize the thickness in the direction of width of an object to be conveyed by means of a conveyor, by installing a retainer plate, slightly bent upward, to the lower part of a belt conveyer. CONSTITUTION:A retainer plate 8, having a shape, as seen from a cross section extending northogonal to the conveying direction of a belt conveyor 2, which has a highest part at its center and is slightly bent upward, is located under the belt vonveyor 2 and in a position in the vicinity of a conveyed object dischargeing part 7 of a rake-back device 4. The retainer plate 8 serves to enoughly uniformize the thickness in the direction of width of an object 1 to be conveyed until the object passes through the discharging part 7 and reaches a rotary brush 6 for development. Further, through formation of the retainer plate such that its curvature is adjustable, it can retain the belt conveyor in an optimum condition depending upon a kind of the object to be conveyed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixed-quantity feeding device that continuously transfers objects to a predetermined thickness on a belt conveyor.

Such hard wood chip cement is produced by mixing finely chopped wood flakes, water, etc. with a cement composition, and molding the mixture into a predetermined shape to produce a building material, such as a hard wood cement board. When manufacturing boards, wood flakes, cement, water, etc. are mixed in a mixer, and this is fed to a molding line using a bell mill conveyor and various metering devices. As a quantitative feeding device, for example, as described in Japanese Patent Laid-Open No. 39-12950, the unevenness of the conveyed amount of the mixture on a belt conveyor is flattened by a rotating brush, or the one described in Japanese Patent Laid-Open No. 56-1
As stated in Japanese Patent No. 40058, a scraping-back device is installed above the bell 1 conveyor and scrapes back the surplus mixture on the belt conveyor in the direction opposite to the conveying direction of the belt conveyor.
Those who achieved n1i are known.

However, the belt conveyor, which is the main part of the conventional 1qi j'l, is made of a relatively soft material, and when a mixture is placed on top, it bends under its weight. The center part becomes depressed and the consistency of the mixture becomes uneven. In addition, when the mixture is poured from the top of the bell 1 to the conveyor 8, it is piled up in a mountain shape on the belt conveyor, so it inevitably becomes thick at the center and thin at both ends when viewed from a cross section perpendicular to the conveying direction of the belt conveyor. Therefore, it is inevitable that the gifts will be uneven. If the pumping is uneven, the thickness and strength of the final product, the hard wood cement board, will not be uniform.

The present invention has been made to solve the above-mentioned problems, and it provides a quantitative feeding device that uniformizes the material transfer ω when viewed from the cross section perpendicular to the transfer direction of the transferred material on the belt conveyor, that is, from the width direction. It is something.

The present invention provides a belt conveyor that sends objects to be transferred in a fixed direction, a scraping device that scrapes back excess transferred items on the belt conveyor in a direction opposite to the conveying direction of the belt conveyor, and a transfer device for the scraping device. It consists of a support plate that supports the belt conveyor from below in the vicinity of the material discharge part, and this support plate has a cross section perpendicular to the transfer direction of the conveyor for the heno 1 and the conveyor, and has the highest part at the center and is curved upward. It is characterized by

The details of the present invention will be explained below with reference to the drawings showing one embodiment thereof.

FIG. 1 is a side view of one embodiment of the device of the present invention, and FIG.
FIG. 2 is a cross-sectional view taken along line II in the figure.

In the figure, a C1 transfer object 1 is supplied from a supply device (not shown) and is constantly transferred in the direction of the arrow by a belt conveyor 2. The belt conveyor 2 is driven by a pulley 3. The scraping device 4 is disposed on the belt conveyor 2, rotates in the opposite direction to the belt 1-2 conveyor 2, and passes the conveyed object 1 on the belt 1-conveyor 2 by a certain thickness. That is, a large number of scraping pieces 5 are installed on the outer peripheral surface of the belt of the scraping device 4. For scraping back, use this scraping piece 5 to remove the surplus of the transferred material 1 to the Bell Mill conveyor 2.
Scrape it back in the opposite direction to the direction of transport to make it evenly thick.

The belt 1- of the belt conveyor 2 and scraping device 4 used in the present invention is made of, for example, a sheet of polyester fabric coated on both sides with vinyl chloride resin or the like.

The transferred objects 1 scraped back by the scraping back device 4 are accumulated on the belt conveyor 21 behind the scraping back device 4. The transported object 1 that has passed through the scraping device 4 is transferred to a bell 1-conveyor 2.
is transferred to the vicinity of the front end, and is scattered and dropped onto a template (not shown) by the rotating developing brush 6.

On the back side of the upper 6L belt conveyor 2, near the discharge part 7 of the transferred material of the scraping back device 4, a belt conveyor '2 is installed.
A support plate 8 is provided to support from /j. The reason why the support plate 8 is provided is to prevent the bell 1 to the conveyor 2 from being pushed downward due to the pressure applied to the belt conveyor 2 at this position.

In the present invention, as shown in FIG. 2, the shape of the support plate 8 when viewed from a cross section perpendicular to the conveying direction of the belt conveyor 2 is slightly curved upward with the highest portion at the center.

In order to maintain the support plate 8 in such a shape, the lower surface of the support plate 8 is supported by a large number of adjustment bolts.

These bolts 9 are fixed through holes provided in the frame 10 below the support plate 8 through which the height of the belt can be adjusted. That is, for example, the head of the bolt 9 is welded and fixed to the back surface of the support plate 8, and the height of the bolt 9 is adjusted by tightening the two nuts 11 (by changing the tightening device).

If the center of the support plate 8 is raised slightly and set in such a way that it curves upward with the highest point at the center,
The conveyed objects 1 placed on the bell 1 to conveyor 2 are scraped back by the scraping device 4 so that the central part is slightly thinner than the side parts of A, or the central part and the sides are piled up approximately evenly. It passes through the hands of device 4.

After that, by the time the transferred object 1 reaches the rotating brush 6 for spreading, the transferred object 1 becomes exactly uniform in thickness in the cross-sectional direction perpendicular to the transfer direction, -'J'J straw width direction, due to its own weight, vibration, etc. .

In the present invention, if only the scraping device 4 is used, U1 of the device 4
The transferred material that has passed through the output section 7 flows outward in its width direction while being transferred on the bell 1 to the conveyor 2, and becomes thicker in the center and thinner on both sides. Also, if the center is raised and the sides are thin, even if the transferred material in the center flows toward both sides, the parts on both sides will be roughly pushed outward and the thickness will not be uniform.

According to the device of the present invention, this problem does not occur and the bell 1
~] The thickness of the transported object 1 is made uniform in the vicinity of the rotating developing brush 6 at the front end of the conveyor 2.

K, "f="C1 The curvature of the support plate 8 varies greatly depending on the thickness, viscosity, weight, etc. of the object 1 actually required to be transferred, and the structure is such that it can be adjusted each time. It is desirable to do so.

The support plate 8 can be supported by a method other than the embodiments described above, such as placing a block with a predetermined curvature on the upper surface directly under the support plate, or preparing a support rod of an appropriate height and replacing it each time. May be adopted.

As explained above, the constant ω feeding device of the present invention has the following features:
C by providing a support plate at the bottom of the belt conveyor,
It is possible to make the thickness of the object transferred by the belt conveyor sufficiently uniform in the width direction.

Furthermore, if the curvature of the support plate can be adjusted, the bells 1 to 1 can be supported in an optimal state depending on the type of object to be transported.

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of a device for constantly transporting objects according to the present invention, and FIG. 2 is a cross-sectional view taken along line II in FIG. 1. １・・・・・・・・・・・・Transferred items 2・・・・・・・・・・・・Belt conveyor 4・・・・・・
..... Scraping device 7 .....
・・Discharge part 8 of the scraping device ・・・・・・・・・・・・・
Support board applicant Sekisui Chemical Co., Ltd. Representative Mototoshi Fujinuma

Claims (1)

[Scope of Claims] <1) A belt conveyor that sends objects to be transferred in a fixed direction, a scraping-back device that scrapes back excess transferred objects on this belt conveyor in a direction opposite to the conveying direction of the belt conveyor, and a scraping-back device a support plate that supports the belt conveyor from below in the vicinity of the transferred material discharge part, and the support plate has a cross section perpendicular to the conveyance direction of the belt conveyor that has a highest part at the center, and is curved to one side. A quantitative feeding device for a transferred object, characterized in that: (2) The quantitative feeding device for transferred objects according to claim 1 TI'4, wherein the curvature of the support plate is adjustable.