JP2672979B2 - Scrap compression equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for compressing scrap.

[Conventional technology]

The scrap is compressed into blocks for easy processing. As shown in FIGS. 1 and 2, the structure of such a device for compressing scrap has a structure in which a pair of opposed side walls 2 and two side walls 2 and 2 are provided on a base 1 between one end of each side wall 2, 2. An end wall 3 to be connected is provided, and a push lid 4 that closes the upper portions of the side walls 2 and 2 and the end wall 3 is attached to the upper portions of the side walls 2 and 2 so as to be vertically rotatable. A vertical push slide 5 movable toward the wall 3 and a lateral push slide 6 movable along the inner surface of the end wall 3 are provided.

In the above-mentioned compression device, after the scrap material is put on the base 1, the side walls 2 and 2 and the upper portion of the end wall 3 are closed with the pressing lid 4, and the scrap material is compressed toward the end wall 3 by the vertical slide 5. Next, the compressed scrap material is compressed on the side wall 2 on one side by the lateral push slide 6 to form a block shape.

[Problems to be solved by the invention]

By the way, in the compression work of scrap, the throughput of the work is based on the weight of the compressed scrap lump. In this case, the throughput of the entire scrap factory equipped with a large number of compression devices can be measured almost accurately using a truck scale or the like installed in the factory. On the other hand, conventionally, the device amount of each compression device is calculated based on the empirical intuition of an operator or by multiplying the number of compressed scrap blocks by an approximate weight.

However, there is a problem that the judgment based on the intuition of the operator has large variations and lacks reliability.

On the other hand, the size of the block in which the scrap is compressed varies greatly depending on the contents contained in the scrap and the difference in density. That is, as shown in FIGS. 1 and 2, in the compression step, even if the height h of the scrap block pressed by the pressing lid 4 and the width w pressed by the vertical slide 5 are constant, scrap The length 1 when pressed by the lateral pressing slide 6 changes due to the difference in density in the material. Therefore, the size of the compressed scrap block changes for each compression cycle, and if the weight is calculated based on the number of scrap blocks, the processed weight cannot be obtained accurately.

If the processing amount of each compression device cannot be accurately grasped as described above, the work amount of each device varies, which causes a decrease in operating rate.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a compression device that measures the shape of a scrap lump at the same time as compression to quickly grasp an accurate throughput.

[Means for solving the problem]

In order to solve the above problems, the present invention provides a pair of side walls facing each other on a base, end walls connecting one ends of both side walls thereof,
A vertical slide that can move toward the end wall, a horizontal slide that can move along the inner side of the end wall, and a push cover that is rotatably mounted vertically to close the upper portion of the vertical slide are provided. , A space surrounded by end walls, vertical slides, horizontal slides, and push lids, the scrap material put into this space is compressed by the vertical slides, and the compressed scrap material is horizontal slides. In the scrap compression apparatus for further compressing with the above-mentioned, a detection means is provided which is attached to the lateral push slide and detects the movement amount thereof, and a control circuit which controls the drive of the vertical push slide and the lateral push slide is provided, and the detection means detects The signal of the lateral movement amount, the height of the space to the lid, the set value of the pushing width by the vertical pushing slide,
4) The scrap compression device is configured to obtain the weight of the scrap lump by calculation in the control circuit from the specific gravity value stored in advance corresponding to the scrap material.

[Action]

The scrap compression device of the present invention having the above-mentioned configuration,
The weight of the scrap mass can be detected almost simultaneously with the compression, regardless of the scrap material, simply by measuring the movement of the lateral slide without the use of a weighing device.

As shown in FIGS. 1 and 2, the weight of the scrap lump to be compressed is such that the height pressed by the pressing lid 4 is h, the width pressed by the vertical sliding 5 is w, and the lateral pressing slide 6 is used.
When the length pressed by is 1 and the specific gravity of the scrap is ρ, w × h × l × ρ is obtained.

In this case, the height h and the width w are guide dimensions for the laterally pushing slide 6, and are predetermined values because they are constant values as the specifications of the apparatus. Also, the specific gravity ρ can be set in advance if the content of the target scrap is known.

Therefore, by detecting the amount of movement of the horizontal push slide 6,
When the pressed length l is calculated from the detected amount, this can be multiplied by preset w, h, and ρ to calculate the weight of the scrap chunk for each compression cycle. By sequentially adding the weights of the scrap chunks for one cycle, it is possible to obtain the total daily processing amount of the compressor.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, a U-shaped peripheral wall is provided on the upper part of the base 1 by a pair of side walls 2, 2 and an end wall 3, and the end wall 3 is provided on the opposite side of the end wall 3. A vertical slide 5 is provided which is movable toward the vertical direction. The vertical slide 5 and the peripheral wall form a scrap storage chamber 7.

The vertical slide 5 has a width dimension equal to the space between the side walls 2 and 2, and is driven on the base 1 by the two hydraulic cylinders 8 and 8 connected to the rear portion. ing. The movement stroke of the vertical pushing slide 5 is set so that a gap in which the lateral pushing slide 6 can move is left between the vertical pushing slide 5 and the end wall 3 at the maximum advanced position. Together with the wall 3, it serves as a guide for the lateral push slide 6.

On the other hand, at the upper rear ends of the side walls 2 and 2, the push lid 4 is provided with a pin 9.
It is attached rotatably in the vertical direction via. A slanting guide portion 10 is formed on a bracket 4a that extends to the rear of the push lid 4, and a sliding member 11 is movably attached to the guide portion 10. Further, inside the support frame 12 provided upright on the rear portions of the side walls 2 and 2, a link 13 has an upper end provided with a shaft 14.
The link 13 is rotatably attached by means of a shaft 13, and the lower end of the link 13 is connected to the sliding member 11 via a shaft 15.
In the middle of 13, the tip of the piston rod of the hydraulic cylinder 16 is the shaft.
It is rotatably connected via 17. In the above structure,
When the hydraulic cylinder 16 operates and the piston rod expands and contracts, the lower end of the link 13 pivots to the front side (right side in FIG. 2), and the push lid 4 falls forward with the pin 9 as a fulcrum, and the side walls 2,
The upper part of the storage chamber 7 surrounded by 2 and the end wall 3 is closed.

In addition, a hydraulic cylinder 19 is arranged at the front part of the base 1 by two laterally extending support rods 18, and a lateral push slide 6 is attached to the tip of the hydraulic cylinder 19 and is attached to the side wall 2. Is provided with an opening 20 through which the lateral push slide 6 can be put in and taken out. Normally, the end of the side push slide 6 is opened.
When the hydraulic cylinder 19 is housed inside 20 and operates, it enters the inside of the housing chamber 7 and moves along the inner surface of the end wall 3. On the other hand, the side wall 2 to which the lateral push slide 6 faces is provided with a gate 21 for discharging the compressed scrap lump, and a side face of the side wall 2 is provided with a driving cylinder 22 for opening and closing the gate 21. ing.

Further, as shown in FIG. 3 and FIG. 4, a wire rope 23 is attached to the rear portion of the lateral push slide 6, and the wire rope 23 is provided at a lower portion of a support frame 24 standing above the hydraulic cylinder 19. It is wound around a rotor 25 attached to, and is further stretched around rotors 26 and 27 provided on both sides of the upper portion of the support frame 24, and a weight 28 is attached to the end portion extending downward to keep the tension constant. It is in a state. This support frame 24 has a limit switch for the forward limit along the wire rope 23.
29 and limit switch 30 for reverse limit are provided,
When the lateral push slide 6 advances and retreats, the rotor 25 rotates, the wire rope 23 moves, and the limit switches 29 and 30 are actuated, whereby the movement of the lateral push slide 6 is controlled.

Of the rotors 26 and 27, the rotation shaft 31 of one rotor 26
Is extended and the rotary encoder is attached to the tip of its rotary shaft 31.
32 are installed. This rotary encoder 32
Connected to the controller 33 that controls each operation of the compression device,
When the lateral push slide 6 moves back and forth and the wire rope 23 moves, it rotates together with the rotor 26. The rotation amount in this case represents the movement amount of the horizontal slide 6, and the rotation amount is sent to the controller 33 as an electric signal.

The controller 33 includes a memory section and an arithmetic circuit for calculating multiplication, division, addition and subtraction, and temporarily stores a numerical value input as an electric signal from the rotary encoder 32 in the memory section for each compression cycle. Further, a specific gravity setting device 34 and a printer 35 are connected to the controller 33, and the specific gravity setting device 34 can input the specific gravity in a digital amount.

The controller 33 stores a numerical value input from the specific gravity setter 34 and the rotary encoder 32 in a memory unit, and multiplies the numerical value by the height h and the width w set in the memory unit. , Remember that number. This numerical value is added for each compression cycle, and the added numerical value is output to the printer 35 when, for example, one charge to the storage chamber 7 or one day of work is completed.

The compression device of this embodiment has the above structure, and its operation will be described below.

Before starting the work, first, the specific gravity is set by the specific gravity setting device 34. The value ρ of this specific gravity is determined by the shape and type of the inclusions contained in the scrap material.

As shown in FIGS. 1 and 2, the compression is performed by the side walls 2,
2 and the end wall 3 are retracted, the scrap material is put into the storage chamber 7 surrounded by the hard push slide 5 and the gate 21, and the hydraulic cylinder 16 is operated to rotate the push lid 4 to move the upper portion of the storage chamber 7 upward. Close. The scrap material is pressed downward by the pressing lid 4, and the height in the storage chamber 7 is leveled.

Then, the hydraulic cylinder 8 is operated and the hard pressing slide 5 slides to compress the scrap material A toward the end wall 3.

When the scrap material A is sufficiently compressed, the hard pressing slide 5 is stopped at the front end of the moving stroke, and then the hydraulic cylinder 19 on the side is operated. By the operation of the hydraulic cylinder 19, the lateral pressing slide 6 is moved. Enter within 7. By this lateral push slide 6, the scrap material A is now turned into the side wall 2.
It is pressed toward and compressed into blocks. At this time, the rotary encoder 32 detects the moving distance of the lateral push slide 6 to the press end position, and the amount is sent to the controller 33 as an electric signal. The controller 33 subtracts the input movement amount of the lateral push slide 6 from the interval between the side walls 2 to calculate the length l of the compressed scrap block, and stores the value in the memory unit.

When the pressing is completed, the cylinder 22 operates to open the gate 21 of the side wall 2 and the lateral push slide 6 further advances to discharge the block-shaped scrap lump from the gate 21. Then, the lateral push slide 6 and the hard push slide 5 are restored, and the push lid 4 is erected and returned to the state of work preparation.

During the compression cycle, the controller 33 calculates the weight of the compressed scrap mass by multiplying the stored numerical value of the length l by the preset height h, width w and specific gravity ρ.

The calculated numerical value is stored and is added for each compression cycle in accordance with a command, and at the time when one scrap input into the storage chamber 7 is completely processed, the weight of the input input is determined by the printer 35. Display with. Further, by adding the above numerical values, the total amount of processing can be displayed on the printer 35 when the work for one day is completed.

〔The invention's effect〕

As described above, according to the present invention, the amount of movement of the lateral slide is detected at the same time as the compression step, so that the weight of the scrap chunk to be compressed can be calculated by numerical calculation.
It is possible to know the exact throughput of work without using a weighing device. For this reason, while operating, it is possible to grasp the processing amount of work and adjust the variation in the processing amount among the respective devices according to the production plan, and it is possible to improve the operating rate. In addition, since the accurate processing amount can be grasped, the replacement time of consumable parts can be appropriately determined, and there is an effect that stable maintenance and operation maintenance of the device can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view of a compression device according to the present invention, FIG. 2 is a side sectional view of the same as above, FIG. 3 is a side view showing a structure for detecting the amount of forward / backward movement of a lateral push slide, and FIG. It is a front view. 1 ... Base, 2 ... Side wall, 3 ... End wall, 4 ... Push lid, 5 ... Hard push slide, 6 ... Side push slide, 23 ... Wire rope, 32 ... Rotary encoder , 33 …… Control device, 34 …… Specific gravity setting device.

Claims (1)

(57) [Claims] 1. A pair of side walls facing each other on a base, an end wall connecting one ends of both side walls, a vertical slide movable toward the end wall, and a movable side along the inner side of the end wall. The lateral push slide is provided with a push lid that is attached so as to be rotatable up and down and closes the upper portion of the vertical push slide, and forms a space surrounded by the side wall, the end wall, the vertical push slide, the lateral push slide, and the push lid. In a scrap compression apparatus for compressing scrap material put into a space with a vertical slide and further compressing the compressed scrap material with a horizontal slide, a detection means attached to the horizontal slide for detecting the movement amount thereof. When,
A control circuit for controlling the driving of the vertical push slide and the horizontal push slide is provided, and the signal of the lateral movement amount detected by the detection means, the height of the space up to the push lid, and the pressing width of the vertical push slide. A scrap compression apparatus configured to obtain the weight of a scrap lump by calculation in the control circuit from a set value and a specific gravity value stored in advance corresponding to the scrap material.