JPH055251U - Equipment for collecting falling sand on belt conveyors - Google Patents

Abstract

(57) [Summary] [Purpose] The molding sand falling from the belt of the belt conveyor is easily and surely recovered with a device having a simple structure. [Structure] A gutter-shaped sand receiving member 4 is disposed below the belt conveyor 3, and a carriage 5 is installed on the bottom of the sand receiving member 4 so as to be capable of reciprocating, and the carriage 5 is rotatable by a required angle. A plurality of L-shaped arms 7 and 7 having bent portions are mounted at a predetermined distance in the traveling direction of the carriage 5, and a connecting rod which is movable between the upper ends of the arms 7 and 7 in the carriage 5 direction by a required distance. 8 is rotatably installed, and the scrapers 13, 1 are attached to the lower ends of the arms 7, 7.
3 is attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is suitable for collecting foundry sand falling from the belt of a belt conveyor. Regarding equipment.

[0002]

[Prior art and problems]

  In a mold making plant, a large number of belt conveyors are used as a casting sand carrier. It is used. By the way, especially for long belt conveyors, endless belts The return side of is supported by a large number of idle rollers that are lined up along the belt. Although held, the foundry sand adhering to the surface of this belt was removed by the idle roller. Was peeled off, and the peeled foundry sand dropped as it was. Along with this, There were problems such as being buried in sand and deteriorating the working environment.   The present invention has been made to solve the above problems.

[0003]

[Means for Solving the Problems]

  In order to achieve the above object, the falling sand recovery equipment of the present invention is installed under the belt conveyor. A gutter-shaped sand receiving member is placed on the bottom of the sand receiving member by a cylinder. A movable bogie is arranged, and the bogie has a plurality of rotary axes oriented in the width direction of the bogie. It is rotatably mounted at a required interval in the longitudinal direction of the and can be rotated by a predetermined angle on the rotating shaft. A flexible L-shaped arm is fixed at the bent portion, and a connecting rod is placed between the upper ends of these arms. Is rotatably installed, a scraper is attached to the lower end of each arm, and it is hooked on the connecting rod. Two stoppers projecting members and engageable with the latching member on the sand receiving member Are projected at a required interval in the traveling direction of the carriage.

[0004]

[Function of the device]

  The equipment constructed in this way can move the truck forward by the extension operation of the cylinder. , Foundry sand that has fallen from the conveyor belt and accumulated on the sand receiving member should be removed by the scraper. It is pushed out from the bottom of the sand receiving member to a predetermined place. Also, the trolley moves a certain distance Then, the locking member engages with the stopper and only the trolley advances, and as a result, the arm reverses and The scraper is lifted from the bottom of the sand receiving member. After that, the contraction operation of the cylinder Reload the bogie, scraper, etc. to restore it.

[0005]

【Example】

  An embodiment will be described with reference to the drawings. As shown in FIG. A belt conveyor in which an endless conveyor belt 1 is supported by idle rollers 2 and 2. A trough-shaped sand receiving member 4 extending along the belt conveyor 3 is disposed below the yard 3. (See FIG. 2). On the bottom of the sand receiving member 4, along the belt conveyor 3 An extending trolley 5 is installed so that it can move back and forth in the left-right direction. A plurality of rotary shafts 6, 6 oriented in the front-back direction of a certain sheet are arranged at a required interval in the left-right direction. Are rotatably mounted through the rotary shafts 6 and are located at both outer positions of the bogie 5 on the rotary shafts 6 as a whole. As shown in the figure, the pair of arms 7 and 7 are in the opposite L-shape and are fixed at the bent portions. As shown in FIG. 3, the boom 7 includes an upper portion 7a extending upward and two lower portions extending leftward. Minutes 7b, 7b. Of the upper parts 7a, 7a of these arms 7, 7 Between the upper ends, a connecting rod 8 extending in the same direction as the carriage 5 rotates via bearings 9 and 9. It is erected there (see Figure 2). The hook member 1 is provided near the center of the upper surface of the connecting rod 8. 0 is projectingly provided, and the latch member 10 can be engaged with the inner surface of the sand receiving member 4. Stoppers 11 and 12 are provided so as to project in the traveling direction of the trolley 5 at required intervals. In addition, between the tips of the lower portions 7b and 7b of the arms 7, there is a gap oriented toward the width of the carriage 5. Kurepa 13, 13 are attached. At the right end of the trolley 5, a sand receiver The tip of the piston lot of the horizontal cylinder 14 for traveling the carriage 5 installed on the bottom of the member 4. The ends are joined.   15 is a cover installed on the bottom of the sand receiving member 4, 16 is a scraping plate, and 17 is a hook. Reference numeral 18 is a sand supply port.

[0006]   Next, the operation of the equipment configured in this way will be explained. The foundry sand put in from above is conveyed to the hopper 17 by the belt conveyor 3 and is conveyed to the hopper 17. The molding sand adhering to the conveyor belt 1 of the belt conveyor 3 is caused by the idle rollers 2 and 2. It has been peeled off and dropped on the bottom of the sand receiving member 4, and the equipment is in the state shown in FIG. When the trolley 5 is moved to the left while the cylinder 14 is extended, The scrapers 13 and 13 are also moved to the left along with the movement. This allows the sand receiving member The molding sand on the bottom of 4 is pushed out to the hopper 17 by the scrapers 13, 13. Becomes In addition, the hooking member 10 moves as the carriage 5 moves, and the hooking member 10 slides. After engaging with the topper 11, the movement of the connecting rod 8 stops, and only the carriage 5 moves. Accordingly, the arms 7 and 7 are rotated clockwise until the connecting rod 8 is mounted on the carriage 5. As a result, the scrapers 13, 13 are lifted from the bottom of the sand receiving member 4. Next, the cylinder 14 is contracted to move the carriage 5, the connecting rod 8 and the like to the right and to return. Let The hooking member 10 moved to the right with the carriage 5 engages with the stopper 12, After that, only the carriage 5 is moved to the right, and as a result, the arms 7 and 7 are rotated counterclockwise. It is rotated in the direction to return to the state shown in FIG.   By repeating the above-mentioned operation, the foundry sand on the bottom of the sand receiving member 4 is recovered. be able to.

[0007]   In addition, in the above embodiment, the drive cylinder 14 is connected to the trolley 5. As shown in FIG. 4, the tip of the piston rod of the drive cylinder 34 supported so as to be tiltable. The end is connected to the right end of the connecting rod 8, and the connecting rod 8 is moved by the expansion and contraction operation of the cylinder 34. Even if the connecting rod 8 and the carriage 5 are mainly moved, the same effect can be obtained. It In this case, the latch member 10 and the stoppers 11 and 12 may be omitted.

[0008]

[Effect of device]

  As is clear from the above description, the present invention has a gutter-shaped structure under the belt conveyor. The sand receiving member is provided, and a trolley is installed on the bottom of the sand receiving member so as to be capable of reciprocating, A plurality of L-shaped arm bends that can rotate the required angle are attached to the carriage in the traveling direction of the carriage. Mounted at a required distance between the upper ends of the arms in the traveling direction of the carriage. A movable connecting rod is rotatably installed, and a scraper is attached to the lower end of the arm. Just by moving the carriage back and forth, it is dropped from the conveyor belt and the sand receiving part The molding sand accumulated on the bottom of the material can be collected easily and surely, and the equipment is Excellent such as being able to prevent being buried or the work environment being deteriorated It has a practical effect.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an enlarged detailed view of a B part in FIG.

FIG. 4 is a partial sectional front view showing another embodiment of the present invention.

[Explanation of symbols]

3 belt conveyor 4 Sand receiving member 5 dolly 6 rotation axes 7 arms 8 connecting rod 10 Locking member 11, 12 stopper 13 Scraper 14, 34 cylinders

Claims (2)

[Scope of utility model registration request] 1. A facility for collecting foundry sand falling from a belt of a belt conveyor, wherein a gutter-shaped sand receiving member 4 extending along the belt conveyor 3 is disposed below the belt conveyor 3 and the sand is provided. A trolley 5 extending along the sand receiving member 4 is arranged on the bottom of the receiving member 4 so as to be capable of reciprocating in the longitudinal direction of the trolley 5, and the trolley 5 has a plurality of rotations directed in the width direction of the trolley 5. The shafts 6, 6 are rotatably provided in the longitudinal direction of the carriage 5 with a required space therebetween, and each rotation shaft 6 is provided with L-shaped arms 7, 7 which are rotatable by a predetermined angle at fixed portions. Between the upper ends of these arms 7 and 7, the carriage 5
A connecting rod 8 extending in the same direction is rotatably installed, and scrapers 13 and 13 oriented in the width direction of the carriage 5 are attached to the lower ends of the arms 7 and 7, respectively. Has a hooking member 10 projecting therefrom, and two stoppers 11 and 12 engageable with the hooking member 10 are projected on the sand receiving member 4 at predetermined intervals in the traveling direction of the carriage 5. A falling sand collecting facility for a belt conveyor, characterized in that a tip of a piston rod of a cylinder 14 for reciprocating the carriage 5 is connected to the carriage 5. 2. A facility for collecting foundry sand falling from a belt of a belt conveyor, wherein a gutter-shaped sand receiving member 4 extending along the belt conveyor 3 is disposed below the belt conveyor 3 and the sand is provided. A trolley 5 extending along the sand receiving member 4 is arranged on the bottom of the receiving member 4 so as to be capable of reciprocating in the longitudinal direction of the trolley 5, and the trolley 5 has a plurality of rotations directed in the width direction of the trolley 5. The shafts 6, 6 are rotatably provided in the longitudinal direction of the trolley 5 at required intervals, and each rotation shaft 6 is provided with L-shaped arms 7, 7 which are rotatable by a predetermined angle at fixed portions. However, between the upper ends of these arms 7 and 7, the carriage 5
A connecting rod 8 extending in the same direction is rotatably installed, and scrapers 13 and 13 oriented in the width direction of the carriage 5 are attached to the lower ends of the arms 7 and 7, respectively. Is a cylinder 34 for reciprocating the connecting rod 8 in the longitudinal direction.
The peeled sand recovery equipment for the belt conveyor, characterized in that the tip of the piston rod of is connected by pins.