JP2008230633A - Defective article selecting device and defective article selecting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a defective article selecting device for rationally selecting two types of opening defects. <P>SOLUTION: This unacceptable item selecting device includes a box body support part 11 whose standing face on four sides raised on a flat panel part 10a is square and a movable piece 14 provided at least on one face 13 of the support part 11. The movable piece 14 moves depending on the shape of the inside face of a box body 30 and includes an opening-out stopper 17 for preventing the piece 14 from opening more than predetermined and a support protrusion 16 for keeping the piece 14 open in advance. When the opening size of the box 30 is smaller than an acceptable range, the opened piece 14 is pressed by the inside face of the body 30 where the piece 14 or a contact piece 15 provided at the piece 14 contacts for pushing the protrusion 16 toward the inside of the part 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique capable of performing defective product sorting, for example, using a transportation pallet, in order to prevent defective products from being sent to a subsequent process in a box manufacturing process in which defective products such as outward opening and inward warping may occur.

When manufacturing a cylindrical body with or without a bottom or a box without a lid, if the opened portion is distorted and does not have a predetermined shape or size, it becomes a “defective product”. This will be described with reference to FIG.
In this defective product, the opening part becomes larger than a predetermined dimension, or “outer opening (30a)” that becomes partly larger, and becomes smaller than a predetermined dimension, or partly. There are almost two types of "inner warp (30b)" that become smaller.

Now, in portable information devices, electric vehicles, and hybrid vehicles, the storage space for batteries is limited. Therefore, in order to effectively use the limited storage space, rectangular batteries are the mainstream. In this rectangular battery, a plurality of square positive electrode plates and negative electrode plates are formed such that side edges on opposite sides protrude from opposing portions of both electrode plates through a separator. Then, a current collector plate is disposed on the protruding portion (lead portion) of the electrode plate group, and both ends of the current collector plate are bent and welded as bent portions. Moreover, the outer peripheral surface of the positive electrode plate and the negative electrode plate sandwiched between the bent portions is attached with an outer peripheral insulating tape for insulation from a battery case described later.
Thereafter, the electrode plate group is housed in a metal case (battery can) called a battery case. There are two types of defective products in the manufacturing process of this battery case: “outside opening” and “inward warping”.
The defective product related to the metal case 90 requires two types of inspection processes, ie, an inspection process for checking whether or not “outward opening” is performed and an inspection process for checking whether “inward warping” is performed.

The metal case 90 (battery can) was able to be screened for defects in the outer opening by using the pallet 70 in the production line as shown in FIG. That is, the box body support 71 having a trapezoidal shape in which the bottom surface dimension is equal to a predetermined opening dimension and the four vertical surfaces are tapered with respect to the support body 80 supporting the plurality of metal cases 90 with the openings facing upward. Combine multiple pallets 70 together. Then, the metal case 90 having a predetermined size is fitted into the box body support portion 71 and engaged with the pallet 70 as shown in FIG. On the other hand, since the outwardly opening metal case 90 that is larger than the predetermined size is not fitted into the box body support portion 71, it cannot proceed to the next step. At this stage, the outwardly opening metal case 90 can be selected.
However, the “inner warp” metal case 90 cannot be selected.

  In addition, when detecting defective products in the manufacturing process, as a technique using a pallet for transporting products, for example, the technique described in Patent Document 1, that is, “performs an appearance inspection of an IC package reliably and efficiently”. The technology was discovered.

Japanese Patent Laid-Open No. 8-26373

As described above, at present, two types of inspection processes are required: an inspection process for determining whether or not “outward opening” has been performed and an inspection process for determining whether or not “inward warping” has occurred. It is preferable if the time for this inspection process can be shortened or the number of processes can be reduced.
However, it cannot be achieved by conventional techniques such as the technique described in Patent Document 1.

The problem to be solved by the present invention is to provide a technique capable of rationally selecting the opening defect of the opened box from the current state.
The purpose of claims 1 to 5 is to provide a sorter capable of rationally sorting defective products.
Another object of the present invention is to provide a defective product selection method capable of rationally performing defective product selection.

  As means for solving the above problems, the present invention provides the following inventions.

(Claim 1)
The invention according to claim 1 is composed of a flat plate portion (10a) and a box body support portion (11) having an upright standing from the flat plate portion (10a), and the box body support portion (11). The present invention relates to a defective product sorter including a movable piece (14) and capable of sorting defective opening of the box (30) by inserting the box support (11) into the opened box (30).
The movable piece (14) includes an expansion stopper (17) for preventing the movable piece (14) from expanding more than a predetermined amount, and a support protrusion (for expanding the movable piece (14) in advance). 16).
When the opening size of the box (30) is smaller than the allowable range, the movable piece (14) is pressed by the inner surface of the box (30), and the support protrusion (16) is moved to the box support (11). It is pushed inward.

(Function)
It is assumed that the opening size of the box (30) is larger than the allowable range, that is, is in an outwardly open state. In this case, the movable piece (14) does not contact the inner surface of the box (30). Therefore, it does not engage with the defective product sorter according to this claim.
When the opening size of the opened box (30) is smaller than the allowable range (that is, in the case of inward warping), the movable piece (14) is moved by the inner surface of the box (30) in contact with the movable piece (14). Is pressed and the support protrusion (16) is pushed into the box support (11), and the movable piece (14) does not contact the inner surface of the box (30). Therefore, it does not engage with the defective product selector according to this claim.
As described above, in both cases of outward opening and inward warping, only the non-defective product can be engaged and picked up without being engaged with the defective product selector according to the present claims. That is, two types of defective products can be sorted out by a single defective product sorter.

(Claim 2)
The invention described in claim 2 limits the defective product selector described in claim 1.
That is, the movable piece (14) is provided on two opposing faces (13) of the box body support part (11).
The two faces (13) facing each other are faces corresponding to locations where the outward opening and the internal warp are likely to occur.

(Claim 3)
The invention described in claim 3 limits the defective product sorter described in either claim 1 or claim 2.
In other words, the box body support portion (11) is characterized by having a tapered shape by making the four sides up to be trapezoidal.

(Function)
Since the box supporter (11) has a tapered shape, high accuracy is not required for alignment with the opening of the box (30) to be selected.

(Claim 4)
The invention according to claim 4 limits the defective product sorter according to any one of claims 1 to 3,
The movable piece (14) includes a contact piece (15) in contact with an inner surface of the box (30).

  In addition to the movable piece (14) formed on the vertical surface of the box support (11), the contact piece (15) in contact with the inner surface of the box (30) is provided, so that `` the degree of non-defective product to be extracted "Is easier to adjust. For example, if the contact piece (15) is made larger or is made of a material with a large surface friction, the “acceptable range of acceptable products” can be expanded, and conversely the contact piece (15) can be made smaller. If it is made of a material having a small surface friction, the “acceptable range to be a non-defective product” can be narrowed.

(Claim 5)
The invention according to claim 5 limits the defective product selector according to any one of claims 1 to 4.
That is, it is characterized in that it is formed as a sorting pallet (10) provided with a plurality of the box support portions (11).

(Function)
Since the sorting pallet (10) includes a plurality of box support portions (11), a plurality of defective products can be sorted in a single process.

(Claim 6)
The invention according to claim 6 uses a defective product sorter capable of sorting defective openings of the box (30) by inserting the box support (11) into the opened box (30). The present invention relates to a method for selecting a defective opening of a box (30).
The defective product sorter includes a flat plate portion (10a) and a box body support portion (11) having an upright standing upright from the flat plate portion (10a). A movable piece (14) is provided.
The movable piece (14) is formed so as to be able to move in accordance with the shape of the inner surface of the box (30), and the movable piece (14) has a movable piece (14) of a predetermined size or more. An expansion stopper (17) for preventing the expansion and a support protrusion (16) for expanding the movable piece (14) in advance are provided.
The movable piece (14) expanded by the support protrusion (16) is the box (30) in contact with the movable piece (14) when the opening size of the box (30) is smaller than an allowable range. ) When the movable piece (14) is pressed by the inner surface and the support protrusion (16) is pushed inside the box support (11), and the opening size of the box (30) is larger than the allowable range. The movable piece (14) expanded by the support protrusion (16) is formed so as not to contact the inner surface of the box (30).
Then, the defective product sorting method according to the present invention uses the box body support pallet (20) so that the box body support part (11) can be inserted into the opening side of the box body (30) to be sorted. A box supporting step for supporting, an inserting step for inserting the box supporting portion (11) from the opening side of the box (30) supported by the box supporting pallet (20), and the box (30 The box support part (11) inserted into the opening of the box body is separated from the box body support pallet (20), and the box body support is not engaged with the box body support part (11) in the release process. And a defective product processing step for processing the box (30a, 30b) remaining on the pallet (20) as a defective product.
Since a single defective product sorter can sort out two types of defective products, it is very reasonable as a defective product selection method.

(Claim 7)
The invention according to claim 7 limits the defective product selection method according to claim 6,
The movable piece (14) includes a contact piece (15) in contact with the inner surface of the box (30).

(Claim 8)
The invention according to claim 8 limits the defective product selection method according to claim 6 or claim 7.
That is, the defective product sorter is formed as a sorting pallet (10) provided with a plurality of the box support portions (11), and the box support pallet (20) is a box in the sorting pallet (10). It is characterized by being formed so as to support the box (30) corresponding to the support portion (11).

(Glossary)
Regarding the box support pallet (20), “supporting the box (30) corresponding to the box support (11) in the sorting pallet (10)” means that the sorting pallet (10) is vertical x horizontal = m x If n box body support portions (11) are provided, the box body support pallet (20) is also formed as a pallet that supports mxn box bodies (30).

(Claim 9)
The invention according to claim 9 limits the defective product selection method according to any one of claims 6 to 8.
That is, it includes a shaping step for shaping the box (30a, 30b) that has become defective in the defective product processing step, and the defective product from the box support step for the box shaped by the shaping step. It is characterized in that sorting is executed again.

According to the inventions described in claims 1 to 5, it is possible to provide a sorter capable of rationally sorting defective products.
Further, according to claims 6 to 9, a defective product selection method capable of rationally performing defective product selection can be provided.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 to FIG. 7 are used here. FIG. 1 shows a part of a production line that also serves as an inspection using a defective product sorter according to the first embodiment. FIG. 2 is a perspective view showing a main part of the first embodiment. FIG. 3 is a cross-sectional view showing the main part of the first embodiment. 4 to 6 are sectional views showing the main part of the second embodiment. FIG. 7 is a perspective view showing a main part in the third and fourth embodiments. 2 and 7 are reversed upside down for convenience of illustration.

(First embodiment)
FIG. 1A shows a box support pallet 20 that supports an opening of a metal case 30 that is an open box that is a target for defective product selection, and the metal supported by the box support pallet 20. The sorting pallet 10 provided with the box support part 11 inserted in opening of case 30 is shown. The sorting pallet 10 includes a flat plate portion 10a and a plurality of box body support portions 11 provided upright from the flat plate portion 10a. In this embodiment, the sorting pallet 10 corresponds to a defective product sorter according to the present invention.
In FIG. 1 (b), when the box body support part 11 of the sorting pallet 10 is inserted, it is detached from the box body support pallet 20 and engaged with the box body support part 11, and the sorting pallet 10 is inverted. Indicates the state of the

(Figure 2)
FIG. 2 shows the box support 11 of the sorting pallet 10 and the metal case 30 immediately before being inserted into the box support 11. 2A shows the state immediately before the metal case 30 is inserted, and FIG. 2B shows the state in which the metal case 30 is inserted and the movable piece 14 described later is pushed inward by imaginary lines. .
The box supporter 11 has a tapered shape with trapezoidal elevations on four sides, and includes two short side plates 12 and two long side plates 13.

The box body support part 11 includes a movable piece 14 provided on both long side plates 13. The movable piece 14 is formed so that it can move in accordance with the shape of the inner surface of the metal case 30 by being cut out by two grooves 13a and 13a that have the taper side as a root and reach the opposite taper side end. Has been.
Further, the movable piece 14 has a contact piece 15 in contact with the inner surface of the metal case 30, an expansion stopper 17 for preventing the movable piece 14 from expanding more than a predetermined amount, and the movable piece 14 is expanded in advance. And a support protrusion 16 for keeping the same.
By the expansion stopper 17 and the support protrusion 16, the movable piece 14 is expanded at a predetermined position where the non-defective metal case 30 is engaged with the box support 11.

In the state of being expanded by the support protrusion 16, the contact piece 15 is formed so as not to contact the inner surface of the metal case 30 when the opening size of the metal case 30 is larger than the allowable range.
In addition, when the opening size of the metal case 30 is smaller than the allowable range, the movable piece 14 is pressed by the inner surface of the metal case 30 with which the contact piece 15 is in contact, so that the support protrusion 16 of the box support portion 11 is pressed. It is formed so as to be pushed inward.

(Figure 3)
This will be described in more detail with reference to FIG.
FIG. 3A shows a case where the movable piece 14 does not move even if the box support 11 is inserted into the opening of the metal case 30, that is, the case where the metal case 30 is not defective and the case is open. The support part 11 is shown.
If the distance between the end portions of the contact pieces 15, 15 of the movable piece is L, the inner dimension of the metal case 30 is equal to L, and the contact pieces 15, 15 and the inner surface of the metal case 30 are in contact with each other. When the generated friction force can support the weight of the metal case 30, the metal case 30 is selected as a non-defective product.
When the inner dimension of the metal case 30 is larger than L, the contact pieces 15 and 15 do not contact the inner surface of the metal case 30. Therefore, the metal case 30 is not lifted and remains on the box support pallet 20 as a defective product.

When the inner dimension of the metal case 30 is slightly smaller than L, the metal case 30 is similarly selected as a non-defective product so long as it does not become the state of FIG.
FIG. 3B shows that the inner dimension of the metal case 30 is smaller than L, and when the box body support part 11 is inserted, the contact pieces 15 and 15 come into contact with the inner surface of the metal case 30, and the support protrusions 16 and 16 are formed. This is a case where the movable pieces 14 and 14 are pushed inward after getting over. In this case, the outer dimension of the root portion of the long side plate 13 is S. When the inner dimension of the metal case 30 is smaller than L and larger than S, the support protrusions 16 and 16 are in contact with the inner surface of the long side plate 13 and hold the movable piece 14 in a state of being tilted inward. Therefore, the contact pieces 15 and 15 and the inner surface of the metal case 30 do not contact each other. Therefore, the metal case 30 is not lifted and remains on the support pallet 20 as a defective product.

(Second embodiment)
In the second embodiment shown in FIG. 4 to FIG. 6, unlike the first embodiment in which the shape of the box body support portion 11 is a tapered trapezoid, it is a rectangular parallelepiped.
FIG. 4 shows what happens to a standard-sized metal case 30 that is neither outwardly open nor warped. That is, as shown in FIG. 4A, the contact pieces 15 and 15 and the inner surface of the metal case 30 are in contact with each other, and the frictional force generated there can support the weight of the metal case 30. Therefore, as shown in FIG. 4B, when the sorting pallet 10 is lifted, the metal case 30 is also lifted simultaneously and lifted from the support pallet 20, and the metal case 30 is sorted as a non-defective product.
Although not shown in FIG. 4, the short side plate 12 may have a rectangular shape, and the long side plate 13 may have a tapered trapezoidal shape.

(Fig. 5)
FIG. 5 shows a case of the metal case 30a that is opened outward. In this case, since the contact pieces 15 and 15 do not contact the inner surface of the metal case 30, when the sorting pallet 10 is lifted, the metal case 30a remains on the support pallet 20, and the metal case 30a is sorted as a defective product.

(Fig. 6)
FIG. 6 shows the case of the metal case 30b that is warped. FIG. 6A is a cross-sectional view showing the main part, and a bb cross section shown in the figure is shown in FIG. 6B. FIG. 6C shows a state before the movable piece is pushed.
As shown in FIG. 6 (c), before inserting the box support 11 into the opening of the metal case 30b warped inward, the long side plate 13 has expanded the expansion stopper 17 and the movable piece 14 in advance. It is stationary with the support protrusion 16 for placing.
As shown in FIGS. 6A and 6B, when the box body support portion 11 is inserted into the opening of the metal case 30b warped, the contact pieces 15 and 15 and the inner surface of the metal case 30b Contact. When the metal case 30b is further inserted, a force is applied to the movable pieces 14 and 14 through the contact pieces 15 and 15, and the movable pieces 14 and 14 are pushed inward over the support protrusions 16 and 16. Then, the support protrusions 16 and 16 come into contact with the inner surface of the long side plate 13 and hold the movable piece 14 in a state where the movable piece 14 is tilted inward. If it will be in this state, the contact pieces 15 and 15 and the inner surface of the metal case 30b will not contact. Therefore, when the sorting pallet 10 is lifted, the metal case 30b remains on the support pallet 20, and the metal case 30b is sorted as a defective product.

(Third embodiment)
Fig.7 (a) is a perspective view which shows the principal part of 3rd embodiment of this invention. Moreover, FIG.7 (b) is a perspective view which shows the principal part of 4th embodiment.
In the third embodiment, unlike the first embodiment, the box support portion 11a is composed only of the short side plate 12 and the long side plate 13, omits the bottom plate, and forms the width of the contact piece 15 large. By changing the width dimension of the contact piece 15, it is possible to adjust the selection criteria for both defects.
Note that the selection criteria for both defects can also be adjusted by changing the position of the support protrusion 16 in the vertical direction in the figure.

(Fourth embodiment)
The fourth embodiment is different from the first embodiment in that the box body support portion 11b includes only the curved side plate 12a without using the short side plate or the long side plate. It can be used when the horizontal cross-sectional shape is a circular, oval or oval box. However, even if the box to be selected is a square, it may be usable.

Although illustration is omitted, as a variation of the embodiment, even if the movable piece 14 is not provided on both of the long side plates 13 but is provided on one of the long side plates 13, the present invention can function.
In each of the above embodiments, the contact piece 15 is separately provided on the movable piece 14, but the entire movable piece 14 may be formed so as to function as the contact piece 15.

INDUSTRIAL APPLICABILITY The present invention can be used in the manufacturing industry of box bodies provided with openings, for example, in the manufacturing field and inspection field of rectangular batteries.
In addition, it can be used in the inspection industry when a box with an opening is manufactured, the reuse of a box with an opening, and the recycling industry.

It is a perspective view which shows a part of production line of the metal case which is an opening box which concerns on this invention. It is a perspective view which shows the principal part of this invention. It is sectional drawing which shows the principal part of this invention. It is sectional drawing which shows the principal part of 2nd embodiment of this invention, Comprising: The case where a metal case is non-defective is shown. It is sectional drawing which shows the principal part of 2nd embodiment of this invention, Comprising: The case where a metal case is outwardly opened is shown. It is sectional drawing which shows the principal part of 2nd embodiment of this invention, Comprising: The case where a metal case is inwardly warped is shown. It is a perspective view which shows the principal part of 3rd embodiment of this invention, and 4th embodiment. It is a perspective view which shows the aspect of a defect of an opening box. It is a perspective view which shows a part of production line of the metal case which is the conventional opening box.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sorting pallet 10a Flat plate part 11 Box body support part 11a Box body support part 11b Box body support part 12 Short side plate 12a Curved side surface 13 Long side plate 13a Groove 14 Movable piece 15 Contact piece 16 Support protrusion 17 Expansion stopper 20 Box support pallet 30 box (metal case)
30a Box (outside opening defect) 30b Box (inward warping defect)
70 box transport pallet 80 box support pallet 90 box (metal case)

Claims (9)

It comprises a flat plate portion and a box body support portion having an upright standing upright from the flat plate portion, the box body support portion is provided with a movable piece, and the box body support portion is inserted into the opened box body A defective product sorter capable of sorting the opening defect of the box,
The movable piece includes an expansion stopper for preventing the movable piece from expanding more than a predetermined amount,
A support protrusion for pre-expanding the movable piece,
When the opening size of the box is smaller than an allowable range, the movable piece is pressed by the inner surface of the box and the support protrusion is pushed into the box support part.   The defective product sorter according to claim 1, wherein the movable piece is provided on two opposing surfaces of the box support portion.   3. The defective product sorter according to claim 1, wherein the box support portion has a tapered shape by forming trapezoidal surfaces on four sides. 4.   The said movable piece is provided with the contact piece which contact | connects the inner surface of the said box, The inferior goods sorter in any one of Claims 1-3 characterized by the above-mentioned.   The defective product sorter according to any one of claims 1 to 4, wherein the defective product sorter is formed as a sorting pallet including a plurality of the box support portions. It is a method of sorting opening defects of a box body opened using a defective product sorter,
The defective product sorter includes a flat plate portion and a box body support portion having an upright standing upright from the flat plate portion, the box body support portion including a movable piece, and the movable piece is the box body. It is formed so that it can move according to the shape of the inner surface of the
The movable piece includes an expansion stopper for preventing the movable piece from expanding more than a predetermined amount, and a support protrusion for pre-expanding the movable piece,
When the opening size of the box is larger than an allowable range in the state where the support protrusion is expanded, the movable piece is formed so as not to contact the inner surface of the box, and the box When the opening size is smaller than the allowable range, the movable piece is pressed by the inner surface of the box body in contact with the movable piece, and the support protrusion is pushed into the box body support portion. And
A box support step of supporting a box to be selected by a box support pallet so that the box support part can be inserted on the opening side thereof;
An insertion step of inserting the box support part from the opening side of the box supported by the box support pallet;
A separation step of separating the box support part inserted into the opening of the box from the box support pallet;
A defective product selection method comprising: a defective product processing step of processing, as a defective product, a box remaining on the box support pallet without engaging with the box support portion in the separation step.   The defective product sorting method according to claim 6, wherein the movable piece includes a contact piece in contact with an inner surface of the box. The defective product sorter is formed as a sorting pallet including a plurality of the box support portions,
8. The defective product sorting method according to claim 6, wherein the box supporting pallet is formed to support a box corresponding to a box supporting portion in the sorting pallet. . While having a shaping step for shaping the box that has become a defective product in the defective product processing step,
The defective product sorting method according to any one of claims 6 to 8, wherein the defective product sorting from the box supporting step is executed again for the box shaped by the shaping step.

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