JPH0253112B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic sorting machine for sorting steel cans from aluminum cans, and this sorting machine has a hopper having a side plate that converges downward, and the side plate Serving as a deflector towards the drum, said drum rotates around a horizontal axis and has a number of magnets around its periphery to attract steel cans placed parallel to the axis of this drum. I, Kanha,
through a passage formed between the drum and the deflection plate,
The aluminum can falls into a first receiver, and the steel can passes past the first receiver, is separated from the drum by a scraper, and falls into a second receiver.

The present invention is an improvement over US Pat. No. 4,225,047. In the above patent, a deflection means is provided for positioning each can placed in the sorter substantially parallel to the axis of the sorting drum.
The can assumes another position, thus creating a jam in the passage between the deflector and the drum. In such a situation, the depth of the hopper makes it difficult to eliminate the sticking without disassembling the outer body, and the sticking can cause the parts to bend and break.
Furthermore, in locations where sorting machines are used, such as supermarkets, it is extremely important that the sorting machines operate without failure.

In the sorting machine of the present invention, a spring-controlled supply chute and a deflection plate are provided, said deflection plate being able to be swung away from the periphery of the drum, so that the deflection plate and the drum can be swung away from each other. The passage between the drum and the chute is enlarged to eliminate sticking, and the chute can be swung upwards against the force of the spring, thus providing a passage between the drum and the chute for scraping by the scraper. The chute is allowed to pass past the chute, which also serves as a movable second scraper.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved sifter and, in particular, to provide means for automatically eliminating sticking.

A particular object of the invention is to provide an arrangement of the chute and deflection plate placed converging towards the sorting drum, in which both the deflection plate and the chute move away from the drum. Thus, passage is allowed through the deflection plate which would normally not be able to pass through, or which would otherwise become stuck under the chute.

Description will be given below with reference to the accompanying drawings.

As shown, the magnetic can separator according to the invention has a suitable outer body 10 in which a sorting drum 12 is rotatably disposed.

The sorting drum 12 has a horizontally placed shaft 14 which is supported in bearings placed on the side walls 16, 18 of the outer body 10.

The drum 12 is driven by a motor 20 placed on a bracket 22 mounted on the wall 30 of the outer body, with drive means 25 consisting of a pulley and belt providing the drive connection from the motor to the drum.

The drum 12 has a cylindrical drum body 26;
Both ends of are fixed to a plate 28 fixed to the shaft 14.

The outer body 10 is rectangular and has side walls 16, 18 as well as end walls 30, 32 interconnecting these walls. A peripheral frame 33 is provided along the top, bottom and side edges of the outer body wall, thus creating a strong and rigid structure.

A ceiling wall (or cover plate) 35 having a handle 35' is provided at the upper end of the outer body.
5 extends from the side walls 16 to 18 and from the wall 30 to the wall 3
Get to the halfway point to 2. The plate 35 is connected by a hinge 36 to a frame portion 33 at the upper end of the wall 30;
In the closed position, the ends rest on the upper frame portions 33 of the side walls, but are opened to access the interior of the outer body for internal repairs or cleaning. The other half of the upper end of the outer body has a supply chute cover 37 whose outer end is connected by a hinge 38 to a frame section 33 at the upper end of the wall 32. The cover 37 has a lip 40 along its interior, preferably a steel bar welded to the steel cover 37. The entire structure is made from metal such as steel. The lip portion 40 is the inner end 4 of the cover plate 35.
Overlaps 2.

Side guides 44 for reinforcing the cover are provided at both ends of the cover 37 at right angles to the cover 37, and the side guides 44, together with the bottom side 45 of the cover 37, hold the cover 37 in the position shown in FIG. Forming an extension of the chute when raised, in this position the cover 37 is held by a retainer 47, one end of which is pivotally connected to the end wall 32 at 48 and the other end 50. is divided into two branches and engages with a handle 52 attached to the upper side of the cover plate 37. When not in use, the holder 47 can be suspended as shown in FIG. 1, and the cover 37 can also be suspended.

Attached to the outer periphery of the drum are a number of circumferentially spaced, axially extending permanent bar magnets 55, said magnets 55 extending over the entire length of the drum. The drum rotates counterclockwise as seen in Figure 1, and the cans C thrown into the feed chute rest on the top of the drum in an irregular position, with some of the cans C being parallel to the axis of the drum. , but others do not.

When the can is introduced into the outer body 2 through the opening 57 (FIG. 3), it is directed onto the drum 12 in the upper right quadrant of the drum (FIG. 1), and is then first raised by the drum and then lowered. It will be done.

A number of cans are forced parallel to the drum as shown by a deflection plate 60, the free end 61 of said plate 60 being at a distance slightly greater than the diameter of the can C to be sorted from the run of the magnet. Therefore, each can C carried by the drum 12 cannot pass through the deflection plate 60 unless it is rotated so that it is parallel to the axis of the drum 12, and after passing, it cannot pass through the passage 62. pass inside. The deflection plate 60 is preferably located in the upper left quadrant of the drum as shown in FIG.

The deflection plate 60 extends between the side walls 16 and 18 and is connected by a hinge 64 to the top and bottom ends of the wall 32 at a position higher than the axis of the intermediate drum shaft. Sloped towards the drum, the inner edge of the plate intersects the upper left quadrant of the drum.

The deflection plate is held by a compression spring 65, which is placed at an acute angle to the deflection plate, and a pin 66 pivotally connected to the underside of said plate 60 holds the upper end of said spring 65. Receive. spring 65
is at an acute angle with the portion of the end wall 30 above it, and the tube 67 is pivotally connected to the inside of the wall 30.
The pin 66 and tube 67 extend telescopically relative to each other when spring compressed. When an overloaded jam occurs between the deflector plate and the drum, the deflector plate can be moved away from the drum a predetermined distance sufficient to eliminate the bind. The direction plate is
It can be raised by releasing it from the spring 65, thus allowing access to areas below the deflection plate.

Under normal conditions, the cans are placed one by one in the passage 62.
pass through. If the cans are all aluminum, they fall directly down the passage 62, but if the cans are aluminum cans with steel end plates, or all steel cans, these cans , beyond the apex 71 of the sorter 70 to the lower right quadrant of the drum. The sorter 70 has chutes 72 and 74 converging upward on both sides of its apex 71.
, and the apex 71 is perpendicularly below the rotational axis of the drum.

In the lower right-hand quadrant of the outer body is placed a scraper 75, the inner end 77 of which is spaced from the periphery of the drum by less than the diameter of the can, but greater than the passage of the outer end of the magnet, and thus , each steel can or can having a steel end plate engages this scraper and tends to swing the scraper away from the drum (FIG. 1). If the can is held loosely by the magnet, it will fall off the drum and onto the chute 74. Prior to this, the all-aluminum can has already fallen onto the chute 72.

The scraper 75 is a bolt or clamp 78
is connected to the monopod 79 of the torsion spring 80,
The coil portion 81 of the spring 80 is connected to the walls 16 and 18 of the outer body.
It is placed over the shaft 82 extending between the two. The other leg 83 of the spring 80 is secured by a clamp 84 to a rod 86 suitably attached to the walls 16 and 18 of the outer body.

Can or stuck can scraper 75
If not separated from the drum by the action of , they would move upwards and under the feed chute plate 85 located in the upper right quadrant of the outer body. The plate 85 is inclined downwardly and inwardly so that the plate 85 is connected to the wall 61.
The plate 85 is hinged for pivoting about a horizontal axis by a hinge 87 which connects the plate 85 with the inner end 88 of the plate 85 spaced apart from the passage of the magnet. Both ends of the plate 85 rest on stop bodies 89 fixed to the side walls 16 and 18 of the outer body, the plate 85 is urged downward by a tension spring 90, and one end of each of the plates 85 is attached to reinforcing plates 92 near each end of the wall 16 or 18, the other end being hung in a hole 93 made in the wall 16 or 18.

When the cans not removed by the scraper reach the bottom of the supply chute plate 85, they push this plate upward away from the drum. spring 9
As the zero is lengthened, the force trying to release the stuck can increases until the can is released from the drum and falls onto the chute 74 or is recirculated over this plate. Of course, this anti-sticking action generates a loud impact sound, which gives a warning during operation, and the operator stops the machine and investigates the cause.
Then remove the problem.

The bottom of the outer body is open except for the chutes 72, 74, which lead to collection bags 98, 99;
98 and 99 are suspended below each chute from brackets 100 and 101 on legs 102 and 103.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view of the device of the present invention, FIG. 2 is a plan view of the device, and FIG. 3 is a vertical sectional view of the device of the present invention.
FIG. 6 is a plan view with the cover open. 10... Outer body, 12... Sorting drum, 14...
Drum shaft, 16, 18...side wall of outer body, 30,
32...End wall of outer body, 35...Cover, 37...
Supply chute cover, 55... Magnet, 60... Direction plate, 70... Sorter, 72, 74... Chute, 75... Scraper, 85... Supply chute plate, 98, 99... Collection bag.

Claims (1)

[Scope of Claims] 1. A drum having a horizontal rotation axis and having a magnet around its periphery, and a drum for receiving cans that are not attracted to the magnet and cans that are attracted to the magnet one after another in the rotational direction of the drum. Separate first and second receiving devices arranged on the underside of the drum, and with the axis of the drum before going to the position where the cans placed in the sorter are discharged into one of the receiving devices. a magnetic can having a deflection device for deflecting the deflection device to a substantially parallel position; and a mounting device for mounting the deflection device for swinging about a horizontal axis in a direction away from the drum; Sorting machine. 2. The can magnetic sorting machine according to claim 1, wherein the attachment device has a compression spring that holds the direction changing device. 3. an outer body having a vertical wall; a horizontal drum having a magnet around the periphery and rotatably disposed within the outer body;
A deflection device and a supply device are provided on both sides of the drum and are placed at an angle toward the drum, and the deflection device is arranged so as to form a channel between the drum and the drum. a mounting device located at a distance slightly greater than the diameter of the drum and further configured to movably retain the deflection device for movement away from the drum to prevent can sticking; A magnetic can sorter having a receiving device for receiving discharged cans.