JP2006016199A - Charge controller for bucket elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a charge controller for a bucket elevator capable of automatically opening and closing a charging port of an elevator casing in accordance with travel of a bucket by a very simple mechanism, reducing the number of parts, dispensing with a guide for opening and closing, and charging fixed amount into the bucket irrespective of simple mechanism without causing a problem that opening and closing operation is obstructed by a conveyance object charged into the bucket. <P>SOLUTION: A shielding plate 7 serving also as a chute opened and closed by engaging with and leaving from the rising bucket 4 is mounted in the charging port 2 of the elevator casing 1. This shielding plate 7 serving also as the chute functions as the chute for opening the charging port 2 by holding inclined attitude for the charging port 2 and guiding a conveyance object from the charging port 2 into the bucket 4 usually and functions as the shielding plate closing the charging port 2 to shut off the conveyance object by lifting due to rise of the bucket 4 in which the conveyance object is charged. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bucket elevator that feeds a conveyed product from a charging port of an elevator casing into a bucket that is circulated in the elevator casing, and in particular, a charging control device that controls charging of the conveyed product from the charging port to the bucket. About.

  Conventionally, as this type of charging control device, there are those described in Patent Document 1 (Japanese Patent Laid-Open No. 8-225127) and Patent Document 2 (Japanese Utility Model Publication No. 3-16815).

  In Patent Document 1, a shutter plate is slidably provided at the lower end opening (inlet) of the hopper, and a chute that is inclined so that the bucket side is lowered below the shutter plate is attached to be movable forward and backward. At the same time, a linear drive mechanism (cylinder) is connected so that they are linked. Then, the shutter plate opens the opening and moves to the advanced position where the shutter tip is located on the bucket by the linear drive mechanism from the retracted position where the shutter plate closes the opening and the tip of the chute retracts from the bucket. By doing so, a predetermined amount of granular material can be supplied to the bucket through the chute.

  However, according to this, in addition to the shutter plate and the chute, a linear drive mechanism (cylinder) that drives them in conjunction with each other and a guide mechanism that guides them are required. There is a problem that the granular material enters into the shutter and the sliding of the shutter plate and the chute is hindered. In addition, a linear drive source such as a cylinder and a control system for synchronizing the drive with the movement of the bucket are required, which not only increases the cost of the apparatus but also increases the running cost.

  In Patent Document 2, a shutter having an opening (inlet) that coincides with the opening and a protruding outlet is formed on the front surface of a hopper having an opening (inlet) on the lower edge side. The upper plate is slidable up and down and is urged upward by a spring, and an abutment plate is provided below the outlet portion where the shutter protrudes, and the inlet protrudes on the bucket side. Is provided.

  When the bucket is lowered, the inlet portion abuts against the contact plate of the shutter, the shutter is pushed down by the bucket in a state where the bucket inlet portion and the shutter outlet portion are in communication, and the shutter opening (inlet) is the hopper. The tablet or capsule from the hopper is put into the bucket through the outlet part protruding from the shutter and the inlet part protruding from the bucket.

  On the other hand, when the bucket is lifted, the shutter is lifted and returned by the spring, so that the shutter closes the opening (input port) of the hopper.

However, according to this, the shutter can be automatically opened and closed by raising and lowering the bucket, but it is necessary to be a reciprocating bucket elevator in which the bucket reciprocates up and down, and is not applicable to a circulating bucket elevator in which the bucket circulates. In addition, an outlet portion protruding to the shutter side and an inlet portion protruding to the bucket side must be provided, and a guide for guiding the shutter to slide up and down and a spring for biasing upward are required, and the mechanism becomes complicated. There is a problem that tablets and capsules enter the guide of the shutter and obstruct the opening and closing of the shutter.
JP-A-8-225127 Japanese Utility Model Publication No. 3-16815

  Therefore, an object of the present invention is to automatically open and close the entrance of the elevator casing with a very simple mechanism as the bucket moves, to reduce the number of parts, and to eliminate the need for a guide for opening and closing. An object of the present invention is to provide a bucket elevator charging control device that does not have a problem that the opening / closing operation is hindered by the transported material and that is a simpler mechanism and can be quantitatively charged into the bucket.

  The present invention relates to a bucket elevator that loads and conveys a conveyed product from a loading port of an elevator casing into a bucket that is circulated in the elevator casing, and engages and disengages the rising bucket from the loading port of the elevator casing. Install a chute combined shield that opens and closes. This chute combined shield normally functions as a chute that holds the inclined position with respect to the inlet and opens the inlet, and guides the object to be conveyed from the inlet into the bucket. When the bucket is lifted by raising the bucket, it functions as a shielding plate that closes the inlet and blocks the conveyed product.

  In a specific form, the shoot / shade is held by its own weight in an inclined posture that opens the inlet, and the shoot / shade is inserted by lifting the tip portion of the shoot / shade into the rising bucket. The mouth is closed, and the tip of the chute combined shield is detached from the bucket, so that it can be automatically rotated so as to be automatically restored to the inclined posture that opens the inlet.

In this case, the chute / shield is in contact with the inclined bottom surface of the inlet and maintains the inclined posture.
It is preferable to provide side plates on both sides of the chute combined shield.

  According to the present invention, when the chute combined shield opens the input port and holds the inclined posture, the conveyed material from the input port is input to the bucket using the chute combined shield as a chute and performs the input. When the bucket for the chute is lifted by lifting the bucket, the charging port is closed and the feeding of the transported object is stopped. When the bucket is further lifted and the engagement with the chute for shield is released, Opens the charging port again to assume an inclined posture, and the conveyed product is loaded into the next bucket, and the same operation is repeated.

  Therefore, it is a very simple mechanism that does not require a drive source or guide to open and close the chute combined shield, and can be provided at a much lower cost than before, and there is no problem that the opening and closing operation is hindered by the transported material put into the bucket. In addition, even a simple mechanism can carry a fixed amount of conveyed items.

  Further, by providing side plates on both sides of the chute / shielding plate, it is possible to prevent the conveyed object from dropping from both sides of the chute / shading plate.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the charging control device A according to the present invention is attached to a charging port 2 provided at a lower portion of a vertically long elevator casing 1 of a bucket elevator B, and circulates in an arrow direction by a chain 3 in the elevator casing 1. For the bucket group 4 to be fed, the feeding of the conveyed product from the loading port 2 is controlled. The transported material loaded into the bucket 4 by the loading control device A is transported upward by the raising of the bucket 4, and the bucket 4 is inverted and turned downward at the upper end in the elevator casing 1, so that the elevator casing 1 It is discharged from the discharge port 5 at the upper end.

  2 to 4 show the overall appearance of the bucket elevator B, and a hopper 6 having an upper surface opened outside the charging port 2 is provided.

  5 to 7 show the making control device A according to the present invention. The throwing control device A has a chute / shading plate on its bottom surface, that is, on the inclined bottom surface 6a of the hopper 6, so that the chute / shading plate 7 having side plates 7a on both sides can be opened and closed from the lower side. The base end of 7 is rotatably mounted by a hinge 8.

  The chute combined shield 7 is mounted as described above, and normally, as shown in FIG. 5, the chute combined shield 7 is rotated downward until it comes into contact with the inclined bottom surface 6 a of the hopper 6 by its own weight. Then, the inclined posture with the insertion port 2 opened is maintained. At this time, the tip end portion (free end portion) of the chute / shielding plate 7 enters the elevator casing 1 from the charging port 2 and the rising upper corner portion of the bucket 4 is the chute / shield barrier at this time. The front end of the plate 7 is engaged.

  Therefore, when the chute / shielding plate 7 is in the state shown in FIG. 5, the transported material in the hopper 6 slides on the chute / shading plate 7 from the open inlet 2, and It is thrown into the bucket 4 that has risen to the nearest lower side. At this time, the side plates 7a on both sides of the chute / shielding plate 7 are prevented from dropping from both sides of the chute / shielding plate 7.

  When the inserted bucket 4 rises, the upper end corner of the bucket 4 engages with the tip of the chute / shield 7 and the chute / shield 7 is lifted. While turning upward, the insertion port 2 is closed as shown by a chain line in FIG. 6, and the conveyed product C in the hopper 6 is blocked by the chute / shielding plate 7.

  When the bucket 4 is further raised, the upper end corner of the bucket 4 is disengaged from the tip of the chute / shield 7 so that the chute / shield 7 is turned downward as shown by the solid line in FIG. The opening 2 is opened, and the conveyed product C in the hopper 6 slides on the chute / shielding plate 7 and is put into the next bucket 4, and the chute / shading plate 7 is restored to the state shown in FIG.

  By repeating such an operation, a certain amount of the conveyed product is put into the buckets 4 that rise sequentially.

  The conveyed product is not limited to powder and granules, but can be applied to a lump, a can, a bottle, or the like by adjusting the speed of the chain 3 and the amount charged into the hopper 6.

It is sectional drawing of the bucket elevator to which the making control apparatus by this invention is applied. It is the front view. It is a side view similarly. It is a back view similarly. It is sectional drawing of the injection | throwing-in control apparatus by this invention, and is the state which the chute | shoot combined shielding board opened. Similarly, the closed chute combined shield is in the middle of opening. It is a front view of this making control apparatus.

Explanation of symbols

A Input control device B Bucket elevator C Conveyed object 1 Elevator casing 2 Input port 3 Chain 4 Bucket 5 Discharge port 6 Hopper 6a Bottom surface 7 Shutter combined shield 7a Side plate 8 Hinge

Claims (4)

  In a bucket elevator that loads and conveys a conveyed product from a charging port of an elevator casing into a bucket that is circulated in the elevator casing, and is also used as a chute that is opened and closed by engagement and disengagement with the rising bucket. A shield plate is attached, and this chute combined shield usually functions as a chute that holds the inclined position with respect to the inlet and opens the inlet, and guides the conveyed material from the inlet into the bucket. A bucket elevator charging control device characterized by functioning as a shielding plate that closes the charging port and shuts off the conveyed product by being lifted by raising the bucket that has loaded the conveyed product.   The shoot / shading shield keeps the tilting posture to open the inlet by its own weight, and the tip of the shoot / shader is engaged with the rising bucket and lifted to close the inlet. The tip of the chute / shielding plate is detached from the bucket, so that it can be freely rotated so as to be automatically restored to the inclined posture that opens the insertion port. Bucket elevator charging control device.   The bucket elevator charging control device according to claim 2, wherein the chute / shielding plate is in contact with the inclined bottom surface of the charging port to maintain the inclined posture.   4. The bucket elevator charging control device according to claim 1, wherein side plates are provided on both sides of the chute combined shield.

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