JPH0244898Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an apparatus for sorting the front and back sides of blanks to be processed by presses and machine tools.

[Background technology and its problems] Blanks for presses and machine tools are formed by punching, so the cut surfaces are not always clean, and the corners of the front and back surfaces may have curvature.
A difference arises between a shaped corner and an edge shaped corner. if,
If processing such as pressing is performed with the front and back surfaces of the blank mixed, positioning during processing cannot be performed accurately, causing problems such as affecting the accuracy of the product. For this reason, in processing such as pressing, it is necessary to sort out the front and back sides of the blank.

However, in the past, sorting the front and back sides of blanks was done by workers using their naked eyes, and manually sorting the front and back sides of blanks in this way imposes a great deal of effort on the workers, and furthermore, it takes a long time to sort them. There has always been a problem with inefficiency.

[Purpose of the invention] An object of the invention is to provide an apparatus that automates the front and back sorting of blanks.

[Means and effects for solving the problem] The present invention focuses on the fact that the front and back sides of a blank can be identified based on the difference in corner shape. The objective is achieved by providing a stepped portion that cannot be passed through the rounded corner portion, so that only the blank at the rounded corner portion rides on the stepped portion and passes through the blank passageway.

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

In FIG. 1, which shows the schematic configuration, there is a space between the blank discharge device 1 and the blank storage case 2.
A blank conveyance path 3 is inclined at a predetermined angle so that the side of the blank storage case 2 is lower, and a blank front/back sorting device 4 is provided in the middle of the blank conveyance path 3. The blank discharge device 1 is configured to discharge a plurality of blanks 5 having both front and back surfaces one by one into a blank conveyance path 3 in a line. The blank storage case 2 is configured to store the blanks 5 sliding from the blank conveyance path 3 via the front/back sorting device 4. Here, the blank 5 has an R-shaped corner having a predetermined radius of curvature formed on one side and an approximately right-angled edge-shaped corner on the other side by blank punching, so that the front and back surfaces are different. It's summery.

The front and back sorting device 4 includes a blank separating device 6 and a blank sorting device 7.
The blank separating device 6 includes a shutter 8 and a pressing member 9, and sends the most advanced blank 5 out of the blanks 5 discharged from the blank discharging device 1 and arranged in a line on the blank conveying path 3 to the shutter 8. By activating it, it is shut off and stopped, and 2
The second blank 5 is pressed by the pressing member 9 to stop it, and the shutter 8 is opened to allow the most advanced blank 5 to slide.Furthermore, the shutter 8 and the pressing member 9 are operated to hold one blank for a predetermined period of time. Each blank is sent to a blank sorting device 7.

The blank sorting device 7 includes a sorting section 10 and a driving section 11, and the sorting section 10 includes:
As shown in FIGS. 2 to 4, a support member 12, a rotating member 13 rotatably supported by the support member 12, and a rotation member 13 attached to the support member 12 and located above the blank conveyance path 3 and A sliding part 14 relaying between both sides of the lower part and the rotating member 13
It is equipped with The rotating member 13 provided between the upper and lower sliding parts 14 that are inclined with respect to the horizontal direction includes two discs 15,
A cross member 16 is provided between these discs 15, 15 and forms a cross-shaped hollow part by combining predetermined plate members, and a cross member 16 is fixed to the center of the outer end surface of the discs 15, 15 and is attached to the support member 12. The rotating shaft 17 is rotatably supported, and the horizontal direction perpendicular to the upper and lower sliding parts 14 is the axial direction. By being driven accordingly, the rotating member 13 is configured to rotate clockwise in FIGS. 1 and 2, that is, in the direction of the upper sliding portion 14. Here, a blank passageway 16 is provided on the inner lower surface of the cross member 16 through the intersection portion of the hollow portion.
Four passageways A are formed, and blanks 5 sent from the blank separation device 6 at predetermined time intervals to each of these passageways 16A slide through the upper blank conveyance passageway 3 and the sliding section 14. These blank passageways 16A extending radially from the center of rotation of the rotating member 13 form a pair of straight lines that connect the upper sliding section 14 and the lower sliding section 14. In this embodiment, there are a total of four blank passageways 16A, so there are two pairs of blank passageways 16A. Further, the drive unit 11 is operated in conjunction with the blank separating device 6, and after a sufficient time for one blank 5 to pass through the blank passageway 16A in a straight line, that is, after a passing time has elapsed. , the rotary member 13 is rotated by 90 degrees, and this operation is repeated to reverse the blank passage 16A. said pair 2
Between the book blank passageways 16A, there is one blank passageway 16 that is continuous with the lower sliding section 14.
A stepped portion 16 is provided in which A is raised by a dimension d, and this stepped portion 16B is such that when the lower surface of the blank 5 has a rounded corner shape, the blank 5 passes through and is sent to the lower sliding portion 14. , the blanks 5 are formed so as to collide and stop at substantially right-angled edge-shaped corners. Further, the support member 12 is provided with an arc-shaped guide member 18 that faces the lower outer peripheral portion of the rotary member 13 with an extremely small gap, and is stopped at a stepped portion 16B in the blank passageway 16A. The blank 5 is turned over and sent to the lower sliding part 14 without falling even when the rotating member 13 rotates. In such a configuration,
The front and back sides of the blank are sorted as follows.

Blanks 5 are discharged one by one from a blank discharging device 1 into a blank conveying path 3 with their front and back surfaces coexisting, and are separated at predetermined time intervals by a blank separating device 6 and sent to a blank sorting device 7.

The blank 5 passes through the blank transport path 3 and the sliding section 14 of the blank sorting device 7, and slides on the blank passage path 16A in the cross member 16.

At this time, if the lower surface of the blank 5 has an R-shaped corner, as shown in A and B in FIG. , blank 5 toward the lower sliding part
glides. Further, the blank 5 is stored in the blank storage case 2 via the lower sliding section 14 and the blank conveyance path 3 with the rounded corners facing downward. After the passage time has elapsed, the drive unit 11 is activated, the rotating member 13 is rotated 90 degrees, and the next blank 5 slides on the blank passage 16A orthogonal to the blank passage 16A. On the other hand, when the lower surface of the blank is at an edge-shaped corner, the blank 5 collides with the stepped portion 16B and stops, as shown in A in FIG. The rotating member 13 is rotated 90 degrees, and the lower end is supported by the guide member 18 and moved as shown in FIG. ,
That is, the passageway 16A is rotated by a total of 180 degrees and reversed as shown in C in FIG. 6, and along with this,
Blank 5 is also reversed. The blank 5 passes through the lower sliding section 14 and the blank conveyance path 3 with the rounded corners facing downward, and is stored in the blank storage case 2 in that state.

In this manner, the blanks 5 are sequentially stored in the blank storage case 2 with the rounded corners facing downward.

According to this embodiment, it is possible to automatically sort the front and back sides of the blank 5. Therefore,
There is no need for workers to put much effort into sorting the front and back sides of the blanks.
It is possible to sort the front and back sides of the paper. In particular, in this embodiment, the blanks 5 are automatically separated one by one by the blank separator 6, and the blanks 5 are automatically sorted by the blank sorter 7, so that the front and back sorting can be more completely automated. can do.
Further, since the blank passageway 16A is formed to be reversible by the rotating member 3, the structure of the blank front/back sorting device 4 is simplified, and the blanks 5 can be sorted efficiently. Furthermore, the blank passage 16
Since four A are formed, the blanks 5 can be sorted more efficiently.

In the embodiment described above, there were a total of four blank passageways 16A, but this number may be any other number that can form a pair, that is, an even number such as two or six. Further, in the embodiment described above, the blank passing path 16A was formed by the cross member 16, but the structure for forming this blank passing path is not limited to this. Furthermore, the means for rotating the rotating member 13 is not an automatic means such as a motor,
Manual means such as a handle may also be used. In addition, a belt conveyor is installed instead of the blank storage case 2, and blanks 5 are placed in press machines and other machine tools.
may be sent automatically.

[Effects of the invention] According to the invention as described above, there is an effect that the front and back sides of a blank can be automated.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment according to the present invention, FIG. 2 is a sectional view showing essential parts of the embodiment, FIG. 3 is a sectional view taken along the line - in FIG. 2, and FIG.
The figure is an exploded perspective view showing the main parts of the embodiment, and FIGS. 5 and 6 are explanatory views of the operation of the embodiment. 3...Blank conveyance path, 4...Blank front/back sorting device, 5...Blank, 16A...Blank passing path, 16B...Step portion.

Claims (1)

[Claims for Utility Model Registration] Upper and lower sliding parts for blank sliding inclined with respect to the horizontal direction, supported by a support member between these sliding parts, and the upper and lower sliding parts a rotating member that rotates in the direction of the upper sliding part around a horizontal axis perpendicular to the rotating part; an even number of blank passageways extending radially from the rotational center of the rotating member; The blank passageway includes a guide member provided opposite to the lower outer circumferential portion of the member, and the blank passageway is formed of a pair of two straight lines that connect the upper sliding portion and the lower sliding portion. A blank front/back sorting device characterized in that a step is provided between the pair of two blank passageways such that one blank passageway continuous with the lower sliding portion is higher. .