JPH0230497A - Recovery device for chip in shear piercing - Google Patents

Abstract

PURPOSE:To surely suck a sheared scrap piece from a die hole by an air current and to recover this scrap piece by separating it from the air current by arranging a scrap recovery part between a suction function part and a scrap receiving part and sectioning the internal part of this scrap recovery part in a draftroom and recovery room by a separating plate. CONSTITUTION:The sheared scrap piece transferred to a scrap recovery part 50 via a scrap receiving part 30 and suction pipes 34a, 34b from a die hole 32a by getting on a suction air current is deposied in a recovery room 54 in order by being separated with the air current by the separation plate 52 of a case body 51 inside. On the other hand, the separated air current reaches a suction function part 10 via the suction pipe from a vent chamber 53 and a small dust, etc., contained in the air are removed by their separation hereby. A scrap member 58 is then released by choosing the scrap piece deposit amt. of the recovery room 54 inside by the visual recognition from a peep window 56 and the rest timing of a press work, the scrap piece is raked out by using an instrument of a hook shape, moved to a scrap taking out port 57 and stored in a recovery container.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 7] The present invention relates to a scrap collecting device used in press shearing and hole drilling, and more specifically, the present invention relates to a scrap collecting device used in shearing of presses and drilling in holes, and more specifically, the present invention relates to a scrap collecting device used in press shearing and hole drilling.
The present invention relates to a device for collecting and processing unused small pieces by riding on the suction air current.

[Conventional technology] Press machines are capable of shearing, especially punching and drilling (
) machining is so common that it accounts for more than half of all press work, and it is also possible to simultaneously perform several processes of punching holes in plate material that is fed progressively using the same die, as well as the final process of punching. There is very little work involved.

The circumferential pieces that have been removed by shearing during the drilling process and piled up on the base are generally scraped out manually by an operator and stored in a predetermined container.

[Problems to be solved by the invention] However, the shape of the hole C-punch is extremely complicated,
If the diameter is extremely small even if it is a single or IIi circular shape, it is likely that the peripheral piece will remain in the die hole, resulting in defective removal.
Furthermore, the remaining peripheral piece floats up due to the negative pressure effect caused by the upward movement of the punch, and is then sent back to the upper surface of the die, causing a so-called scrap lifting phenomenon.

If the peripheral piece transferred to the upper surface of the die intervenes in the next drilling process and is struck twice, there is a risk that not only will the finished product be defective, but the expensive mold will be damaged.

The inventors of the present invention took notice of such defects and attempted to actively suck and discharge the shredded/broken circumferential piece using a normal industrial vacuum cleaner. However, by active suction, although the failure of detachment of the circumferential pieces was improved, most of the circumferential pieces to be suctioned were steel pieces, which are different from ordinary dust, so Due to the repeated collisions of the moving pieces, the filter surrounding wall is destroyed in a short period of time, and the surrounding pieces penetrate into the inside of the filter, and the original function of the vacuum cleaner is diminished or completely lost. In addition, such a vacuum cleaner has the disadvantage that it is unavoidable to remove the tank in which the surrounding pieces have accumulated from the container, which is a heavy object, and to dispose of the surrounding pieces with the help of several people.

The present invention aims to solve the following problems: 1) It is possible to effectively suck out the sheared periphery of the punched hole without impairing the original function of an industrial vacuum cleaner, and also to enable simple disposal of the burr periphery. This is a technical issue.

[Means for Solving the Problems 1] The present invention (in order to solve the problems mentioned above in 1), a suction function section including a hex box and a scrap that covers the opening at the lower end of the die hole of the mold are provided. It consists of a receiving part, and a waste collecting part disposed between the suction machine O18 part and the waste receiving part, and the waste collecting part has at least a bottom surface facing forward and a peephole in the top surface. a casing having a shape, the inside of the casing being partitioned into an escape chamber in the L part and a recovery chamber in the lower part by a separation plate having a group of through holes large enough to not allow passage of the circumferential piece; The front end of the recovery chamber is provided with a layered outlet that is sealed by a door member that can be opened and closed, and the escape chamber and the recovery chamber are connected to the suction function section and the waste receiving section through intake pipes, respectively. It adopts a new configuration in which it is connected to the

In a preferred embodiment of the present invention, a conventional industrial vacuum cleaner can be used as is for the suction function section. It is desirable that the waste receiving section has an air space that covers all of the plurality of die holes, and that an air intake port for creating a suction airflow is provided in a part of the waste receiving section. The observation window provided on the top surface of the housing allows the amount of periphery material to be visually checked through a transparent resin plate, etc., and the observation window provided in groups on the separation plate allows the total opening of the IC through-holes to be viewed through the transparent resin plate. It is desirable that the area is set larger than the effective cross-sectional area of the intake pipe.

[Function] Therefore, according to the device of the present invention, the circumferential piece that is transported from the die hole to the scrap collecting unit via the scrap receiving part and the intake pipe on the active suction airflow is prevented by the airflow by the separating plate in the housing. On the other hand, the separated air flow passes from the escape chamber to the suction pipe and reaches the suction function section, where, like a normal vacuum cleaner, fine particles contained in the air are collected. Dust etc. are separated and removed.

Then, the door member is opened based on the timing of the accumulation of circumferential pieces in the collection chamber as seen through the observation window and the timing of the press work being stopped, and the circumferential pieces are scraped out using a hook-shaped tool as appropriate. The circumferential piece smoothly moves to the layer outlet along the bottom surface of the recovery chamber, and is promptly stored in a relatively large-capacity recovery container provided below the layer outlet.

[Example] Hereinafter, an example embodying the present invention will be described based on the drawings.

In the figure, 10.30 and 50 represent a suction function part, a waste receiving part, and a waste collecting part, respectively, and the suction function part 10 is
A main body 11 that has a built-in electric motor 12 as a power source and a blower 13 driven by the electric motor 12; - A tank 1 that has a filter 16 installed in the upper part and that can be used freely at the lower part;
7 and is coupled to the main body 11.
5, and these components are not particularly different from the main body used in conventional industrial vacuum cleaners.

The waste receiving section 30 is configured as an open-top waste receiving box 33 that is fastened with bolts or the like to the lower surface of a mold 32 arranged and fixed on a base 31 of a press machine. is mold 32
It has an air space that covers all of the punching die holes 32a (only one is shown in the figure) provided in the hole, and the side part thereof has a base pipe 35 connected to a flexible intake pipe 34a and an air intake. An air guide pipe 36 for use is connected.

The layer storage section 50 includes a sealed case 51 supported by a movable frame 52, and has a bottom surface 51a of the case 5.
is lifted up and down in a straight line toward the front, and similarly, the upper surface 51b is also lifted up and down in steps toward the front. and the housing 5
1 is divided into an escape chamber 53 which has a small air space partially at the rear and a recovery chamber 54 which occupies the entire air space by extending a bent separation plate 52. through flexible intake tJ34b - to box 1 to box 1
The collection chamber 54 is connected to the waste receiving box 33 via the intake pipe 34B. The separating plate 52 has a group of through holes 52a having a size that does not allow passage of any of the circumferential pieces sheared by the perforation process.
The total opening area of a is set to be larger than the effective cross-sectional area of the intake pipes 3/Ia and 34b.1, On the other hand, a transparent acrylic plate 55 is provided on the slightly gently elevated portion of the upper surface 51b of the casing.
A viewing window 56 sealed by the casing is opened, and a defrost outlet is provided at the front end of the recovery chamber 9)/l, which is formed somewhat narrow due to the relatively steep elevation of the upper surface 51b of the housing. 57 is opened, and the defrost outlet 57 (J is partially blocked by an openable/closeable door member 58 and five seal rubbers. Note that 60
is a handle attached to the door member 58 that also serves as a hook.

In the device of the present invention configured as described above, first, the electric @
The blower 13 is rotated by starting the machine 12, and the -C suction machine f
When the first part 10 enters the operating state, a suction airflow is generated in the red passage all at once by the air introduced from the air guide pipe 3G. Next, when the press machine starts drilling,
``The sheared pieces (well, they are actively sucked out into the die hole 2a without being damaged, ride the suction airflow, and are collected from the waste receiving box 33 through the intake pipe 34, a) into the entire 57'I. The circumferential pieces that have entered the recovery chamber 54 are sequentially separated from the airflow by the separation plate 52 and fall and accumulate at the bottom of the recovery chamber 54, while the separated airflow continues to flow through the escape chamber 53 hl 1 filtration intake pipe. 3/lb is transferred to the C-task 1 to the box 15, and after fine dust contained in the air is removed by the filtration action of the filter 16, it is passed through the blower 13 to the υl air port (not shown). released to the outside.

The amount of debris accumulated in the collection chamber 54 gradually increases due to the continuation of such recessed hole machining, but the progress is similar to that in the case 51.
It can be easily viewed through the viewing window 56 at the top. Then, check the amount of shingle deposited and the timing of stopping the press operation.
1, open the door 61J material 58, scrape out the debris appropriately using a hook-shaped tool, etc., and the surrounding pieces will be collected in the collection chamber 54.
It moves smoothly to the defrost outlet 57 along the elevation bottom surface 51a of the defrost outlet 57, and is promptly stored in a relatively large-capacity recovery container (not shown) installed below the defrost outlet 57.

[Effects of the Invention] As described in detail, the device of the present invention has a suction function section,
A layer storage section whose main element is a sealed casing whose interior is divided into an air escape chamber and a recovery chamber by a separation plate is arranged between the waste receptacle section that covers the lower end opening of the die hole of the mold. a viewing window which connects the escape chamber and the suction function section, and the collection chamber' and the waste receiving section through intake pipes, and allows the interior to be viewed in the same housing;
Since it is provided with an elevated bottom surface that assists the movement of accumulated debris to the defrosting outlet, the peripheral pieces sheared by the drilling process are reliably sucked out from the die holes by the suction airflow, and The surrounding pieces are skillfully separated and collected from the airflow without affecting the suction function, and the accumulated debris is removed by the operator. Due to JA approval and the characteristic shape of the collection chamber, it can be quickly and easily discharged without wasting time, which not only prevents debris build-up defects and reduces the burden on workers, but also ensures stable equipment operation over a long period of time. It has excellent effects that make it possible to use it.

[Brief explanation of the drawing]

The figure is an explanatory diagram schematically showing an embodiment of the apparatus of the present invention. 10... Suction function part 3o... Waste receiving part 32a.
... Dice hole 33 ... Waste receiving box 34 a, 34 b
-IJ! The trachea 50...layer storage section 51...casing 52...
Separation plate 53...Escape chamber 54...Recovery chamber 56...Peep window 58...Door member

Claims (1)

[Claims] It consists of a suction function section including a blower and dust box directly connected to a power source, a waste receiving section that covers the lower end opening of the die hole of the mold, and a waste collection section disposed between the above-mentioned suction function section and the waste receiving section. , the above-mentioned waste collecting section is equipped with a sealed casing having at least a bottom surface inclined forward and a viewing window provided on the top surface, and the casing has a group of through-holes of a size that does not allow the passage of waste pieces. This is divided into an upper air escape chamber and a lower recovery chamber by a separation plate, and a waste removal port that is closed by an openable and closable door member is provided at the front end of the recovery chamber. A debris recovery device for shear drilling, characterized in that an air chamber and a recovery chamber are connected to the suction function section and the debris receiving section through intake pipes, respectively.