JPH04361897A - Device for feeding material to molding machine - Google Patents

Abstract

PURPOSE:To provide a material feeder for a molding machine, by which the materials fallen out on a table surface are automatically rejected and a possibility of causing such problems that mixing materials is eliminated. CONSTITUTION:Under the table surface and in-between the table surface, a groove 4 having a prescribed width is provided and a mold 2 for molding purpose is installed. On the table surface, a sliding table 6 which can be extended over the groove 4 is provided freely movably forwards and backwards, and on the sliding table 6, a bottomless movable hopper 8 is provided freely movably forwards and backwards. The materials fallen out on the table surface are dropped into the groove 4 by the movable hopper 8.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying raw materials to a molding machine used for manufacturing water-permeable blocks from granular raw materials such as molten sewage sludge.

0002

[Prior Art] Various methods can be considered for supplying granular raw materials such as molten sewage sludge to a molding machine as described above, but as shown in FIG. 5, a mold 52 is installed below a table 51. The bottomless movable hopper 53 containing the granular raw material is moved forward and backward on the table 51 while the mold 52 is moved.
The most promising method is to supply granular raw materials inside the container.

However, when operating the raw material supply device as shown in FIG. This causes problems such as mixing of For this reason, in the past, it was necessary for the operator to manually clean the table surface each time molding was performed, which required a lot of effort and was an obstacle to continuous molding.

0004

[Problems to be Solved by the Invention] The present invention solves the above-mentioned conventional problems and can automatically remove raw materials even if they spill onto the table surface, causing problems such as mixing of raw materials. It was completed to provide a fear-free raw material supply device to a molding machine.

[0005]

[Means for Solving the Problems] The present invention, which has been made to solve the above problems, includes installing a mold for molding below the table surface with a groove of a predetermined width between it and the table surface, and The present invention is characterized in that a slide table that can extend over the groove is provided on the table surface so as to be movable back and forth, and a bottomless movable hopper is provided on the slide table so as to be movable back and forth.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in more detail below with reference to an embodiment of a vibration molding machine shown in the drawings. In FIGS. 1 and 2, 1
1 is a table of a vibration molding machine, and this table 1 is divided at the center, and a mold 2 for vibration molding is installed below it. The mold 2 of the embodiment is of a double type (two molds), and a wear-resistant plate 3 is attached to its upper surface in a replaceable manner. The upper surface of the mold 2 is approximately at the same height as the table 1, and grooves 4 of a predetermined width are provided on the left and right sides of the mold 2. Reference numeral 5 denotes a chute installed inside the groove 4, which is used to collect the raw material that has fallen into the groove 4 and discharge it to the outside, as shown in FIGS. 2 and 3.

A slide table 6 is provided on the upper surface of the table 1 so as to be movable forward and backward by a cylinder 7. This slide table 6 normally retreats to the outside of the groove 4 as shown in FIGS. 1 and 2, but when feeding raw materials, it moves forward toward the mold 2 and overhangs the groove 4, and its tip has a wear-resistant surface. It comes into close contact with the end face of plate 3. In the embodiment, slide tables 6 are also provided on the tables 1 on both sides in order to alternately supply two types of raw materials into the mold 2 from both sides, but when only one type of raw material is supplied, It is sufficient to provide it only on one side.

Reference numeral 8 denotes a moving hopper for supplying raw materials into the mold 2. The movable hopper 8 is bottomless and can be moved forward and backward by a cylinder 9 while contacting the upper surface of the slide table 6. In the embodiment, movable hoppers 8 are provided on the table 1 on both sides, and colored raw materials for the surface layer and uncolored raw materials for the inner layer can be alternately supplied.

It is preferable that a scraper 10 is attached to the end of the movable hopper 8, as shown on the right side of FIG. The scraper 10 of the embodiment has a double structure in which a soft material such as rubber is attached to the inside, and a hard material such as hardboard, iron, or plastic is attached to the outside. What is shown on the left side of FIG. 4 is the end of the moving hopper 8 on the opposite side, and the scraper 1
An air injection nozzle 11 is attached above the 0.

0010

[Operation] In the raw material supply device of the present invention configured as described above, raw materials are charged into the movable hopper 8 from a hopper (not shown) in advance, and the raw material is first fed into the movable hopper 8.
is moved to bring its tip into close contact with the end surface of the wear-resistant plate 3 of the mold 2. In this state, the movable hopper 8 is slid along the upper surface of the slide table 6 to above the wear-resistant plate 3, and the raw material in the movable hopper 8 is supplied into the mold 2 via the wear-resistant plate 3.

At this time, as shown in FIG. 4, the movable hopper 8 is moved to a position where the scraper 10 at the tip of the movable hopper 8 slightly exceeds the upper surface of the wear-resistant plate 3 and reaches above the groove 4. . By doing this, the previous raw material that was spilled on the top of the wear-resistant plate 3 is pushed by the scraper 10 and dropped into the groove 4, and mixes with the raw material inside the movable hopper 8. There is no. Thereafter, the movable hopper 8 retreats to its original position, and the slide table 6 similarly retreats.

Next, the slide table 6 on the opposite side advances and comes into close contact with the opposite end face of the wear-resistant plate 3, and the moving hopper 8 on the opposite side moves to above the wear-resistant plate 3 in the same manner as above. Then, a different raw material than the previous one is fed into the mold 2. In this case as well, the scraper 10 of the moving hopper 8 on the opposite side moves to above the groove 4 and scrapes the remaining raw material into the groove 4.
Drop it inside. In the embodiment, an air injection nozzle 11 is attached to the outside of the moving hopper 8 on the opposite side.
It is possible to move forward while blowing the spilled raw material into the groove 4, and the upper surface of the wear-resistant plate 3, etc. can be cleaned more reliably.

Note that, as shown in FIG. 1, the chute 5 is
Since it is attached to a stand 12 for vibrating,
The raw material that has fallen into the groove 4 is collected by the chute 5 during vibration molding and is automatically discharged to the outside. It goes without saying that the wear-resistant plate 3 can be replaced as appropriate depending on the degree of wear. The raw material supplied into the mold 2 is then subjected to vibration molding, resulting in a product such as a water-permeable block.

[0014]

[Effects of the Invention] As explained above, even if the raw material is spilled on the table surface or the surface of the mold, the raw material supply device of the present invention uses the moving hopper to transfer the raw material to the space between the mold and the table. It can be automatically expelled into the groove, eliminating problems such as mixing of different raw materials. Further, according to the present invention, continuous molding can be performed since manual cleaning as in the conventional method is not required. Therefore, the present invention greatly contributes to the development of industry as a raw material supply device for a molding machine that solves the conventional problems.

[Brief explanation of the drawing]

FIG. 1 is a central vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a side view showing the chute portion.

FIG. 4 is a sectional view showing a scraper portion.

FIG. 5 is a central vertical sectional view showing a conventional example.

[Explanation of symbols]

1 Table 2 type 3. Wear-resistant plate 4 groove 6 Slide table 8. Mobile hopper

Claims (1)

[Claims] Claim 1: A mold for molding is installed below the table surface with a groove of a predetermined width provided between the mold and the table surface, and
A raw material supply device for a molding machine, characterized in that a slide table that can extend over the groove is provided on the table surface so as to be movable back and forth, and a bottomless movable hopper is provided on the slide table so as to be movable back and forth.