JPH0665333U - Conveyor scraper equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a scraper device for a conveyor that can discharge a conveyed product at an arbitrary position. [Structure] Above the conveyor belt 1a, an upper scraper 6 formed in a triangular shape in order to distribute a conveyed product B on the belt 1a to the left and right is provided along the longitudinal direction of the belt 1a at a predetermined distance from the upper surface of the belt 1a. A lower pressing member 12 for pressing the upper surface of the belt 1a against the upper scraper 6 by pushing the belt 1a upward is provided below the conveyor belt 1a so as to be movable along the longitudinal direction of the belt 1a. The feature is that it is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor scraper device that distributes a load on a conveyor belt to the left and right, and more particularly to a conveyor scraper device that can discharge a load at an arbitrary position.

[0002]

[Prior art]

 A scraper device is known as a mechanism for unloading a conveyed product on a conveyor belt. The scraper device is located above the conveyor belt at a predetermined distance from the upper surface of the belt and has an upper scraper that is formed in a triangular shape so as to sort the articles on the belt left and right. It is composed of a roller-shaped lower pressing member that presses the upper surface of the belt against the upper scraper by pushing it up.

When unloading a conveyed product on the conveyor belt, the lower pressing member is pushed up to lift the conveyor belt, and the upper surface of the belt is brought into contact with the upper scraper. As a result, the conveyed items on the belt are distributed to the left and right by the upper scraper formed in a triangular shape and discharged.

[0004]

[Problems to be solved by the device]

 However, since the conventional scraper device is attached to the conveyor frame and is fixed at one position with respect to the conveyor transport path, its discharge point cannot be moved. Therefore, if a conveyor belt is laid along a long silo or hopper for a boiler bunker, for example, a plurality of discharge points will be required along the transportation path.In this case, along the transportation path. It is necessary to provide a plurality of (5 to 6) scraper devices, which leads to an increase in equipment cost. In addition, it is not possible to subtly shift the discharge points.

An object of the present invention, which was conceived in consideration of the above circumstances, is to provide a scraper device for a conveyor that can discharge a conveyed product at an arbitrary position.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides an upper scraper formed in a triangular shape above the conveyor belt so as to sort the conveyed goods on the belt left and right, at a predetermined distance from the upper surface of the belt. In addition to being movable along the direction, a lower pressing member for pressing the upper surface of the belt to the upper scraper by pushing the belt upward is provided below the conveyor belt so as to be movable along the longitudinal direction of the belt. It is characterized by that.

[0007]

[Action]

 When unloading the goods on the conveyor belt, first, move the upper scraper and the lower pressing member respectively to the desired unloading points, and put them in a two-tiered state. Then, the lower pressing member is lifted to push up the belt, and the upper surface of the belt is pressed against the upper scraper. As a result, the conveyed items on the belt are sorted to the left and right by the upper scraper formed in a triangular shape and discharged. In this way, by freely moving the upper scraper and the lower pressing member along the longitudinal direction of the belt, it is possible to discharge the conveyed product on the belt at any position.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a sectional view of a belt conveyor provided with a scraper device according to this embodiment, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view thereof.

The belt conveyor 1 is laid above a boiler bunker 2 (a bulk storage tank 2) that is elongated in the front-back direction of the paper in FIG. That is, a conveyor frame 3 is provided above the bulk storage tank 2 along the longitudinal direction thereof, and the conveyor belt 1 is endlessly hung on the conveyor frame 3. In the figure, 1a is a carrier belt and 1b is a return belt. On the upper part of the conveyor frame 3, idlers 4 arranged in a trough shape are provided at predetermined intervals, and the carrier belt 1a is supported on the idler 4. On the other hand, flat rollers 5 are provided below the conveyor frame 3 at predetermined intervals, and the return belt 1b is supported on the flat rollers 5.

Above the carrier belt 1a, there is provided an upper scraper 6 which sorts the conveyed material B (loose material B) on the belt left and right at a predetermined distance from the upper surface of the belt. The upper scraper 6 is formed in a triangular plate shape that is sharp in the conveying direction of the carrier belt 1a, and is movable along the carrier belt 1a. That is, wheels 8 are provided at the left and right ends of the upper scraper 6 via the legs 7, and these wheels 8 travel on an upper rail 9 laid on the upper surface of the conveyor frame 3 with the carrier belt 1a interposed therebetween. It is supposed to do. Chute 10 is attached to both sides of the leg portion 7. The chute 10 guides the conveyed product B pushed to the left and right by the upper scraper 6 from above the carrier belt 1a to the bulk storage tank 2 below.

On the other hand, below the carrier belt 1a, a lower pressing member 12 that pushes the belt 1a upward is provided. The lower pressing member 12 is composed of a plurality of flat rollers 13 arranged in parallel, and is vertically movable by a pantograph-shaped link mechanism 14. That is, by expanding and contracting the electric cylinder 15 connected to the lower end of the link mechanism 14, each link member 16 expands and contracts like a pantograph, and the lower pressing member 12 including the flat roller 13 is pressed against the lower surface of the carrier belt 1a. It has become so. The lower pressing member 12 is attached to a carriage 17 that is movable along the carrier belt 1a. Wheels 18 are provided on the lower surface of the carriage 17, and these wheels 18 travel on a lower rail 20 laid on the middle girder 19 of the conveyor frame 3.

The upper scraper and the lower pressing members 6 and 12 each have a drive motor, and are independent by engaging the pinion of the motor with a rack laid along the upper and lower rails 9 and 20. Self-propelled to. Further, the upper scraper and the lower pressing members 6 and 12 each have a position sensor, and by detecting the detection pieces attached to the upper and lower rails 9 and 20, the stop position thereof can be controlled. ing. Specifically, it may be considered that the rails 9 and 20 are provided with a knurl and the number of the knurls is counted by a counter attached to each scraper 6 and 12.

The operation of this embodiment having the above configuration will be described.

When unloading the conveyed product B on the carrier belt 1a, first, the upper scraper 6 and the lower pressing member 12 are moved to respective desired unloading points to be in a state of being vertically stacked. This alignment is achieved by the position sensor provided on each scraper 6,12.

Then, the lower pressing member 12 is lifted by the electric cylinder 15 to push up the belt 1 a, and the upper surface of the belt 1 a is pressed against the upper scraper 6 as shown in FIG. As a result, as shown in FIG. 3, the conveyed product B on the belt 1a is sorted to the left and right by the upper scraper 6 formed in a triangular shape, and is discharged to the loose material storage tank 2 via the chute 10.

As described above, by freely moving the upper scraper 6 and the lower pressing member 12 along the longitudinal direction of the belt 1a, the conveyed product B on the belt 1a can be unloaded at any position. Therefore, even if the bulk storage tank 2 is formed to be long and slender, and its distance is long and the number of input ports is large, the entire area can be covered with a set (two upper and lower) of scraper devices and pressing members 6 and 12. Since it is not necessary to provide a plurality of fixed scraper devices for each charging port as described above, the cost is extremely low. It is also possible to slightly shift the discharge points.

A modified embodiment is shown in FIG. This modification is different from the previous embodiment only in that the link mechanism 14 for raising and lowering the lower pressing member 12 is changed from a pantograph structure to a parallel link structure, and the other configurations are exactly the same. According to this, when the electric cylinder 15 is expanded and contracted, the parallel link 21 is rotated and erected, and the lower pressing member 12 (flat roller 13) attached to the tip of the parallel link 21 is moved to the carrier belt 1a. Push up the bottom surface of. It should be noted that the interval between the parallel links 21 must be appropriately set according to the interval between the carrier rollers 4 so that the lower pressing member 12 does not interfere with the idler roller 4 when the parallel link 21 is rotated.

[0018]

[Effect of device]

 As described above, the "conveyor scraper device" according to the present invention can exhibit the following excellent effects.

(1) A set (two units on the upper and lower sides) of the upper scraper device and the lower pressing member can cover the entire long discharge area along the conveyor.

(2) Conveyed goods can be unloaded at any position.

(3) The manufacturing cost can be reduced as compared with the conventional fixed scraper device provided with a plurality of units.

[Brief description of drawings]

FIG. 1 is a sectional view of a belt conveyor equipped with a scraper device according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a perspective view of FIG. 1.

FIG. 4 is a side view showing a modified example.

[Explanation of symbols]

 1 Conveyor belt 1a Carrier belt 1b Return belt 6 Upper scraper 12 Lower pressing member B Bulk

Claims (1)

[Scope of utility model registration request] 1. An upper scraper, which is formed in a triangular shape in order to laterally distribute a conveyed product on the conveyor belt, is provided above the conveyor belt so as to be movable along the longitudinal direction of the belt at a predetermined distance from the upper surface of the belt. In addition, a lower pressing member for pressing the upper surface of the belt to the upper scraper by pushing the belt upward is provided below the conveyor belt so as to be movable along the longitudinal direction of the belt. apparatus.