JPH0314300Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a bucket loader device, and particularly to a bucket loader device suitable for carrying in products in a shot blasting machine.

(Prior art) Conventionally, shot blasting machines have a cabinet that houses the product, a shot circulation device that collects and circulates the abrasive material, a projection device that projects the abrasive material onto the product, and a bucket loader that puts the product into the cabinet. Most factories equipped with shot blasting machines store products in product boxes and transport them to each process site.

The bucket loader device is Special Publication No. 49-14573.
No., Special Publication No. 14574, Special Publication No. 49-43313, Utility Model Publication No. 170369, 1982, etc.

(Problem that the invention aims to solve) Since it is impossible to put the product in the bucket with the generally popular bucket loader, it is necessary to transfer the product from the product box to the bucket each time, and the product is reversed. It may be possible if equipment is available, but the current situation is that most of the work is done by hand and requires a tremendous amount of labor. Also, when transporting the products, the finished products are placed in the product box again by hand, or a belt conveyor is installed in front of the cabinet, and once the product is placed on the belt conveyor, the product is placed at the other end. There is also a method of receiving the product in a box prepared in advance, but this increases the height of the machine and requires the building to be renovated, resulting in a huge expense. In addition, the front of the bucket is cut out and a roller conveyor is attached to the bottom.
Another method is to install a stopper in the bucket to prevent the product box from falling so that only the product can be loaded into the cabinet, and then install a roller conveyor so that the empty product box can bypass the bucket loader and transfer it to the front of the cabinet. However, this method not only takes time and effort to transport the product boxes, but also requires a large amount of equipment costs, and is also very inconvenient from the standpoint of effective use of land. On the other hand, there is a method of cutting out the lower part of the back of the bucket and penetrating the product box, but this requires reinforcement of the bucket itself, a stopper plate to prevent product from spilling, and an air cylinder to open and close it, resulting in a complicated structure and high cost.

The purpose of the present invention is to provide an inexpensive bucket troder device that eliminates the product input and collection work that occupies most of the worker's labor by understanding the current situation and investigating the causes.

(Means for Solving the Problems) According to the present invention, there is provided a roller conveyor device for transferring product boxes containing products, a receiving position for receiving the product boxes from the roller conveyor device, and a receiving position for transferring the products to a shot blasting machine or the like. The bucket includes a bucket that moves up and down between a loading position and a support device that supports the bucket so as to be movable up and down. , the roller conveyor device is capable of forward and reverse rotation, and the support device is provided with an opening that allows the product boxes to be transferred by the roller conveyor device to be transferred beyond the position of the bucket. , another conveyor device for receiving the product boxes transferred from the roller conveyor device is provided at a position beyond the opening, and the bucket has a transfer permitting position between the receiving position and the loading position; In this case, the product boxes can be transferred from the roller conveyor device to the above-mentioned another conveyor device by passing under the bucket cart and further through an opening in the support device, and furthermore, a control device for controlling the upward and downward movement of the bucket cart is configured to control the transfer. A bucket loader device is provided that includes a detection device for detecting an acceptable position.

(Function) The product box sent by the roller conveyor device is lifted by a bucket and delivered to a shot blasting machine, etc., and then returned to the roller conveyor device and separated by the roller conveyor device. The product is transferred to a conveyor device and transported to a position where it receives the processed product from the shot blasting machine. If the product boxes that have received the processed products are transported in the opposite direction again by the roller conveyor device, it is extremely advantageous in terms of effective use of the site area.

(Example) To explain the present invention with drawings, a wire rope hoisting device 7 is equipped on the upper part of the fixed frame 23,
One end of the hoisting ropes 14, 14 is attached to the side plates 15, 15 of the bucket bag 4. The bucket 4 has a pair of left and right side plates 15, 15, a back plate 20, and a product box holder 2.
1. It consists of a stopper 9, and a frame 13 is rotatably attached to the bucket 4 with pins 12, 12. The frame 13 has two pairs of left and right rollers 10a, 10 spaced apart in the vertical direction.
a, 10b, 10b are attached, and rollers 10a,
Two pairs of left and right guide rails 11a, 11 with groove-shaped cross sections are provided to accommodate and guide the guide rails 10a, 10b, 10b.
b are erected facing each other. Guide rail 11
The upper end portions of a and 11a are curved portions 11'a and 11'a that curve upward and forward, and stoppers 16a and 16a are provided at the tips of the curved portions 11'a and 11'a.
The upper ends of the guide rails 11b, 11b that guide the lower rollers 10b, 10b are curved parts 11'b, 11'b that curve backward and upward, and stoppers 16b, 16b are provided at the tips of the curved parts 11'b, 11'b. It is provided. The curved portions 11'b, 11'b are arranged so that the center distance of the rollers 10a, 10b is
Then, the radius of curvature is L. The above-described fixed frame 23, hoisting rope 14, frame 13, and guide rails 11a, 11b constitute a support device that supports the bucket bag 4 in a vertically movable manner.

The bucket 4 receives the product box 6 containing the product 17 to be processed from the roller conveyor device 5 and transfers it to the shot blasting machine 1. When raised, the bucket 4 is attached to the guide rails 11a, 1
1b and rises together with the frame 13, and the rollers 10a, 10b of the frame 13 hit the stoppers 16a, 16b. Furthermore, hoisting rope 1
4 and 14, the bucket 4 rotates relative to the frame 13 around the pins 12 and 12, and
A product 17 is fed into the shot blasting machine 1.

At this time, the product box 6 is held in the bucket 4 by a stopper 9 provided on the bucket 4. The swing angle of the bucket 4 is limited by a limit switch 18 mounted on the fixed frame, which controls the wire rope hoisting device 7. Lowering position of bucket 4 is limit switch 1
9. The limit switch 19 moves the bucket 4 from the roller conveyor device 5 to the product box 6.
This is a position where the lower surface of the product box 6 is in contact with the upper surface of the roller conveyor device 5 and the upper surface of the product box 6 is somewhat below the lower surface of the stopper 9.

After the empty product boxes 6 are carried out from the bucket cart 4 by the reverse rotation of the roller conveyor device 5 and reach the position shown in FIG. 6, 6', the wire rope hoisting device is operated and the bucket cart 4 is raised. A limit switch 8 is provided on a fixed frame 23, which is operated by a knocker 22 attached to the bucket 4, and the lifting of the bucket 4 is stopped by the limit switch 8. At this time, the upper surface of the roller conveyor device 5 and the bucket 4
The gap between the lower end surface and the lower end surface is made larger than the height of the product box 6. In the illustrated embodiment, a basket-like product box holder 21 is provided at the lower end of the bucket 4, and the product box holder 21 fits between adjacent rollers of the roller conveyor device 5 at the receiving position. After the bucket 4 takes the position regulated by the limit switch 8 (referred to as the transfer permissible position), the product box is transferred by the roller conveyor device 5 from the position shown at 6' to the position shown at 6''. The device is provided with an opening that does not impede the transfer of the product box 6 from position 6' to position 6''.

The processed product 17' is received from the shot blasting machine 1 into a product box. At this time, the product box is supported by a second roller conveyor device 5' which is an extension of the roller conveyor device 5. Although the second conveyor device 5' is provided separately from the roller conveyor device 5, it may be a roller conveyor driven by a common drive motor with the roller conveyor device 5.

The product box receiving the processed product 17' is transported to a predetermined position (not shown) by roller conveyor devices 5, 5'.

(Effects of the invention) According to the invention, the product boxes are transferred in a straight line as shown in Fig. 7, so there is no need for detours as in the conventional method shown in Fig. 8, and the product boxes are transferred in a minimum space. will be automated.

[Brief explanation of the drawing]

1 is a schematic side view of a bucket loader device according to the present invention, FIG. 2 is a view taken along the line - of FIG. 1, FIG. 3 is a view taken along the line - of FIG. 2, and FIG. Figure 5 is a perspective view of the bucket loader device.
6 is a diagram showing the movement of the bucket cart, FIG. 6 is a diagram showing the transfer state of product boxes, FIG. 7 is a plan view showing the arrangement of the conveyor device according to the present invention, and FIG. 8 is a diagram showing the conventional device. Similar diagram. 1: Shot blasting machine, 2: Shot circulation device, 3: Shot projection device, 4: Bucket, 5,
5': Roller conveyor device, 6: Product box, 7: Wire rope hoisting device, 9: Stopper, 10a, 0
b: Roller, 11a, 11b: Guide rail, 1
1a', 11b': Curved part, 12: Pin, 13: Frame, 14: Wire rope, 15: Side plate, 16
a, 16b: stopper, 17, 17': product, 8,
18, 19: Limit switch, 23: Fixed frame.

Claims (1)

[Scope of utility model registration request] A roller conveyor device that transfers product boxes and the like containing products, a bucket that moves up and down between a receiving position where the product boxes and the like are received from the roller conveyor device and a loading position where the products are delivered to a shot blasting machine or the like; a support device for vertically movably supporting a bucket cart, the bucket cart having a receiving device for receiving and restraining product boxes transferred by a roller conveyor device at a receiving position;
The roller conveyor device is capable of forward and reverse rotation, and the support device is provided with an opening that allows the product boxes transferred by the roller conveyor device to be transferred beyond the bucket position. A second conveyor device is provided at a position beyond which the product boxes are transferred from the roller conveyor device. The boxes can be transferred from the roller conveyor device to the second conveyor device by passing under the bucket cart and further through an opening in the support device, and furthermore, the control device for controlling the upward and downward movement of the bucket cart is configured to allow the transfer. A bucket loader device comprising a detection device for detecting a position.