KR930002452Y1 - Automatic feeding apparatus for law materials - Google Patents

Abstract

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Description

Automatic Feeding Device of Resin Material as Processing Material

1 is a perspective view of a conventional automatic resin material supply device.

2 is a plan view of FIG.

3 is a diagram illustrating a wire bending state of a conventional automatic feeding device

4 is a perspective view of an automatic resin material supply device of the present invention.

5 is a plan view of FIG.

Figure 6 is an explanatory diagram of the wire bending state of the present invention automatic feeder.

7 is a partial cross-sectional view of the transfer duct of the present invention.

Figure 8a is a longitudinal sectional view of the transfer duct other than the present invention, Figure 8b is a longitudinal sectional view of the conventional transfer duct.

9 is an exemplary view showing a state of plant facilities in which the present invention is installed.

* Explanation of symbols for main parts of the drawings

1: Automatic Feeding Device 2: Transfer Duct

3: wire 4: disk

5: first gear 6: 2nd gear

7: third gear S: material transfer space

The present invention is a resin material used to automatically feed and supply various resin materials in the form of powder or coarse particles, which are used as processing raw materials, in a factory that extrudes or injects synthetic resin products into the hopper of each extrusion or injection molding machine through a transfer duct. Relates to a feeder.

In general, the transfer duct (02) for automatically supplying the powder material or coarse-grained resin material to the hopper of each extrusion or injection molding machine is mounted on the ceiling of the factory as illustrated in FIG. The branch pipes 08 are disposed downward in the transfer duct 02 at predetermined intervals (installation intervals of the forming machine) to be connected to the hoppers 010 of each forming machine 09, and one side of the transfer duct 02 is connected. The supply duct (02a) and the circulating duct (02b) is divided into a predetermined interval and the automatic supply device (01) is installed between them, and the material supply hopper (011) is installed on the supply duct (02a) side, The wire 03 disposed at a predetermined interval by the disk 04 is inserted into the transfer duct 02 so as to be transported and circulated by the automatic feeding device 01.

As shown in FIG. 1, the conventional automatic feeding device 01 is composed of only one gear 05 driven by a motor (not shown) and one roller 012 which self-rotates. The wire 03 drawn out from the inside of the transfer duct 02 through the circulating duct 02b is wound around the gear 05 and the roller 012 to be inserted into the supply duct 02a, and the roller 012 is The wires 03 and the disks 04 are installed in an inclined manner so that the wires 03 in an intersecting state are maintained at a constant interval as shown in FIG. 2 so that the disks 04 disposed on the wires 03 do not come into contact with each other. It is possible to operate the circular movement of the plants.

However, in the automatic feeding device, as illustrated in FIG. 3, the wire 03 wound around the gear 05 is rapidly bent at a bending angle of about 180 °, and then 180 degrees to the roller 012. As the wire was bent rapidly at a bending angle of °, the tensile force acting on the bent portion of the wire 03 was strongly applied in proportion to the degree of bending.

Since the wire 03 is made by twisting a plurality of fine wires, the wire 03 and the roller 012 are bent rapidly in a bent state by more than 180 ° so that a strong tensile force on this part is maintained. The wire (03) was easily damaged as it was bent, and if it was used continuously in this state, its life was shortened, requiring a small replacement of the wire (03), and the economic burden of frequent replacement of the wire (03). In addition to this weighting, all work processes must be stopped until the replacement is completed, thereby reducing productivity.

In addition, as shown in FIG. 8B, a slight margin is provided between the inner circumferential surface of the transfer duct 02 having a circular cross section and the outer circumferential surface of the disk 04 in order to sufficiently exhibit the automatic feeding effect of the resin material in the form of powder or coarse particles. Since only the space is formed, when the resin material is transferred to the inside of the transfer duct 02, the resin material is stuck between the narrow free spaces, thereby hindering the smooth transfer operation of the disc 04. The motor was overloaded so that the motor could be burned out, and to prevent this, the operator should always pay attention to it.

The present invention is designed to solve the problems of the conventional automatic resin material supply device as described above, to extend the life of the wire and to achieve a smooth automatic supply operation, as described in detail according to the accompanying drawings Same as

The disks 04 are disposed at regular intervals, and the wire 03 is inserted into the feeding duct 02 divided into the supply duct 02a and the circulating duct 02b, and circulated by the automatic feeding device 01. The material supplied from the feed hopper (011) into the conveying duct (02) continues to be transferred so that it is sequentially supplied to the hopper (010) of each forming machine (09) through the branch pipes (08). The first gear 5 and the second gear 6 are respectively installed on the same line as the supply duct 2a and the circulating duct 2b, and the two gears 5 and 6 are connected diagonally. The third gear (7) is installed above the middle of the two gears (5) and (6), and the three ducts (5), (6) and (7) are in an isosceles triangle arrangement state and the circulating duct (2b) The bent portion of the wire 3 is drawn as the wire 3 drawn out from the wire 3 is wound around the first gear 5, the third gear 7 and the second gear 6 and inserted into the supply duct 2a. Slow Is maintained in the processed material, automatic supply of the resin material, characterized the device.

In the present invention, as shown in FIG. 8B, the inner circumferential surface of the transfer duct 02 having the circular circumferential surface of the disk 04 and the powder or coarse-grained resin material which is fed and transferred to the inside of the transfer duct 02 is formed. It solves the case where the wire 03 and the disk 04 cannot be operated smoothly in the narrow space formed between the outer peripheral surfaces. That is, as shown in FIG. 8A, the cross-sectional shape of the transfer duct 2 forms an elliptical cross-section, so that the material transfer space S is formed on the upper side of the disc 4, and the transfer duct 2 and the disc ( 4) The material does not get stuck in between, so the circulation of wire 3 and disk 4 is smooth, so that the motor is not overloaded.

In the accompanying drawings, reference numerals 5 ', 6', and 7 'are rotation shafts of the respective gears 5, 6, and 7, and 11' is a material supply hopper additionally installed as necessary, and 013 and 13 are automatic feeder covers. It represents.

As described above, the disk 4 is inserted into the transfer duct 2 by inserting the wire 3 disposed at regular intervals into the inside of the transfer duct 2 and into the transfer duct 2. In supplying the supplied resin material through each branch pipe 8 to the hopper 10 of each molding machine 9, the automatic aerial device 1 has three gears 5, 6, 7 The gears 5, 6, and 7 are arranged to form an isosceles triangle, and the third gear 7 located on the upper side is the first gear installed in an offset state as shown in FIG. (5) and the 2nd gear 6 are installed diagonally, and the wire 3 is prevented from leaving in the state wound around the three gears 5, 6 and 7. As shown in FIG. In addition, the bending angle of the wire 3 connected to each of the gears 5, 6, and 7 is bent at about 110 degrees to the first gear 5, as illustrated in FIG. In (7), about 90 ° is bent at about 110 ° in the second gear (6), so that each bent portion forms a gentle curve. As a result, the bending curve of the wire 3 is very gentle as compared to the conventional case of forming an abrupt bending curve of more than 180 ° (see FIG. 3). There is little fear that the strands of (3) are broken, so that the life of the wire (3) is maintained longer.

In addition, the circulation force of the wire 3 by the three gears 5, 6, 7 is increased, the conveying duct 2 has an elliptical cross section, so that the material conveying space S is as shown in FIG. Since it is formed in a relaxed manner, there is no fear of material getting stuck between the disk 4 and the duct 2 during the circulation operation of the wire 3 and the disk 4, and the circulation operation is smooth and the motor may be overloaded. There is no fear of failure due to the burnout of the motor, thus improving productivity.

Claims (2)

The discs 04 are inserted at a predetermined interval into the feed duct 02, which is divided into the supply duct 02a and the circulating duct 02b, and is circulated by the automatic feeding device 01. The resin material supplied from the feed hopper (011) into the transfer mate (02) continues to be transferred while being sequentially supplied to the hopper (010) of each molding machine (09) through the branch pipes (08). The first gear 5 and the second gear 6 are respectively provided on the same line of the supply duct 2a and the circulating duct 2b positioned on the ship, and the upper portion of the two gears 5 and 6 The resin material, which is a raw material for processing, is characterized by the fact that the bent portion of the wire 3 wound by connecting the three gears 7 diagonally to each of the gears 5, 6, and 7 is formed. Auto Feeder. The method of claim 1, wherein the conveying duct 2 has an elliptical cross section, and the material conveying space 5 is formed on the upper side of the disk 4 inserted therein. Feeder.