JP2012148320A - Seaming inspection apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a contact type seaming inspection apparatus capable of preventing a can from sliding down on a pedestal without rolling, and capable of reliably inspecting a seamed part over the entire circumference.SOLUTION: In the seaming inspection apparatus A, a straight pedestal 2 is inclined with respect to the horizontal plane, and loaded thereon so that a circumferential wall C2 of a can C is brought into circumferential contact with an upper part thereof, and forms a runway on which the can C rolls by its self weight. The pedestal 2 is magnetized or has a magnet 3 mounted thereon so as to attract the circumferential wall C2 of the can C.

Description

  The present invention relates to a tightening inspection apparatus for inspecting the shape of a tightening portion in a can having a cylindrical peripheral wall formed of a magnetic material and capable of being made by winding an opening on at least one side. In particular, the present invention relates to a linear pedestal that is a running path on which a can rolls with its own weight, and is magnetized or attached with a magnet so that the peripheral wall of the can can be attracted.

  2. Description of the Related Art Conventionally, a winding inspection apparatus that inspects a shape defect of a winding portion of a can includes, for example, a non-contact type using an image processing technique such as an infrared image as shown in Patent Document 1. On the other hand, a contact-type winding tightening inspection device is known as a device that can be easily inspected.

  As an example of this contact-type winding inspection apparatus, for example, as shown in FIGS. 5 and 6 of Patent Document 2, a sampling inspection is performed off-line. What measures a tightening thickness, a winding width | variety, etc. every 120 degrees is known.

  On the other hand, although it is not in the patent literature, on-line 100% inspection is possible, and in a contact type tightening inspection apparatus, for example, a cross-sectional shape corresponding to the shape of the tightening portion and a linear groove portion In the case where a gage having a gap is made, a can is rolled by making a winding part correspond to the groove part of the gage, and the can comes off from the gage, a gadget that rejects as a defective product has been used.

JP 2009-63564 A Japanese Patent Laid-Open No. 7-60387

  However, in the case of a contact type tightening inspection apparatus that can perform all-on-line inspections as described above, it is possible to easily inspect the tightening part, but among many cans that are inspected, there are cans. There is a problem that it slides down without rolling on the pedestal, the winding part cannot be inspected over the entire circumference, the defective product is mistaken as a good product, and the defective product is mixed in the good product. It was.

  This misidentification tends to be prominent particularly when oil adheres to the metal base and friction with the can is reduced, or when burrs or the like of the tightening portion obstruct rolling.

  The present invention has been made to solve the above-described problems.

  The invention according to claim 1 has a cylindrical peripheral wall formed of a magnetic material, and is a tightening for inspecting the shape of the tightening portion in a can made by winding an opening on at least one side. A linear pedestal that is an inspection device, is provided so as to be inclined with respect to a horizontal plane, and is placed so that the peripheral wall of the can is in contact with the upper surface, and serves as a runway on which the can rolls under its own weight. And having a cross-sectional shape commensurate with the shape of the tightening portion, a linear groove portion for receiving the tightening portion, and abutting on the other end of the can, An other side end position defining member that defines the position of the end side, and an upper position defining member that is located on the opposite side of the pedestal across the can and that defines the upper position of the can. The pedestal is magnetized to attract the peripheral wall of the can, or , Is a seaming inspection apparatus magnet is attached to take.

  According to a second aspect of the present invention, in the tightening inspection apparatus according to the first aspect, a concave portion is partially provided in a portion of the upper portion of the pedestal facing the peripheral wall of the can, and when the can rolls, A gap is formed between the pedestal and the peripheral wall of the can.

  According to the tightening inspection apparatus according to claim 1, the pedestal is magnetized so that the peripheral wall of the can can be attracted, or because the magnet is attached, the can can slide down without rolling. It is possible to prevent this, and it is possible to reliably inspect the shape of the winding tightening part over the entire circumference and reliably catch defective products.

  According to the second aspect of the present invention, in addition to the effect of the winding tightening inspection apparatus according to the first aspect, a concave portion is partially provided in a portion of the upper portion of the pedestal facing the peripheral wall of the can, and the can is rotated. Since it is formed to create a gap between the pedestal and the peripheral wall of the can when moving, even if the burr of the tightening portion breaks and is magnetically attached to the pedestal, the burr is accommodated in the gap. Thus, it is possible to prevent the subsequent rolling of the can from being obstructed and to perform the tightening inspection continuously and smoothly.

It is the schematic perspective view which showed one Example of the winding test | inspection apparatus of this invention. FIG. 2 is a schematic front view of FIG. 1. FIG. 2 is a schematic side view of FIG. 1. It is the schematic which showed the use condition of FIG. 1, and is sectional drawing cut | disconnected by the XX line of FIG. It is the schematic sectional drawing which expanded and showed the principal part of FIG. It is the schematic front view which showed the use condition of FIG. It is the schematic sectional drawing which expanded and showed the principal part of FIG. FIG. 8 is a schematic cross-sectional view corresponding to FIG. 7 and illustrating a state of a defective product when used in FIG. 1, in which FIG. 8A is an example of a winding part defect and FIG. 8B is a winding part defect. Other examples are shown respectively. It is the schematic sectional drawing which showed the other example of FIG. It is the schematic perspective view which showed an example of the can test | inspected by the winding test | inspection apparatus of this invention.

  An embodiment of the present invention will be described with reference to FIGS. In FIG. 1, A is a winding inspection apparatus according to the present invention, and the winding inspection apparatus A has a cylindrical peripheral wall C2 formed of a magnetic material as shown in FIG. The shape of the tightened portion C1 is inspected in a can C produced by tightening the opening on the side of the steel plate (in the present embodiment, examples in which the openings on both sides are tightened). In general, the pedestal 2, the groove portion 21, the other side end position defining member 4, and the upper side position defining member 5 are provided integrally with the machine base 1.

  The pedestal 2 is provided so as to be inclined with respect to the horizontal plane, and is placed so that the peripheral wall C2 of the can C is in contact with the upper part, and the can C is a straight line that serves as a running path on which the own weight rolls. The pedestal 2 is magnetized or has a magnet attached thereto so that the peripheral wall C2 of the can C can be attracted (in the present embodiment, an example in which the magnet 3 is attached to the pedestal 2). .

  The pedestal 2 is made of a metal material such as stainless steel, a ceramic material such as alumina or ferrite, or a hard plastic material such as polycarbonate, but may be either a magnetic material or a non-magnetic material. The base 2 itself may be magnetized.

  The magnet 3 attached to the pedestal 2 attracts the peripheral wall C2 of the can C, and the can C slides down on the pedestal 2, that is, prevents the can C from descending on the pedestal 2 while sliding without rotating. For example, a ferrite magnet, a metal magnet, a bonded magnet, or the like is used.

  As shown in FIGS. 1 and 3, the groove portion 21 is provided in parallel with the pedestal 2 described above, has a cross-sectional shape corresponding to the shape of the tightening portion C1 of the can C, and is a linear shape that receives the tightening portion C1. belongs to. The cross-sectional shape of the groove portion 21 is accurately formed so as to match the shape of the tightening portion C1. When the tightening portion C1 is abnormally deformed, the tightening portion C1 works well with the groove portion 21. It is configured not to fit.

As shown in FIGS. 2 and 3, the other-side end position defining member 4 abuts on the end C3 on the opposite side (the other side) from the winding portion C1 of the can C across the peripheral wall C2. It defines the position on the end C3 side, and is provided along the longitudinal direction of the base 2 so that the horizontal distance between the groove 21 and the contact surface 41 is constant.
In FIG. 3, reference numeral 42 denotes an attachment member for fixing the other side end portion position defining member 4 to the machine base 1, and reference numeral 43 denotes a horizontal position of the other side end portion position defining member 4. The bolts and nuts for adjustment are respectively shown.

As shown in FIGS. 2 and 3, the upper position defining member 5 is located on the opposite side of the pedestal 2 with the can C interposed therebetween, and defines the position on the upper side of the can C. It is provided along the longitudinal direction of the base 2 so that the distance between the upper surface and the contact surface 51 is constant.
2 and 3, 52 is an attachment member for fixing the upper position defining member 5 to the machine base 1, and 53 is an adjusting bolt for adjusting the position of the upper position defining member 5. Each nut is shown.

  Next, the operation of the tightening inspection apparatus A configured as in the above-described embodiment will be described with reference to FIGS.

  FIG. 4 shows a state in which the can C is put into the winding tightening inspection apparatus A. The can C has an end C3 abutting against the abutting surface 41 of the other end position defining member 4 and a peripheral wall C2. Is defined by the contact surface 51 of the upper position defining member 5, and the upward movement is restricted.

  FIG. 5 is an enlarged view of the vicinity of the groove portion 21 shown in FIG. 4, and when the normal winding is performed, the lower end portion of the winding portion C1 of the can C is within the groove portion 21 as shown in FIG. As shown in FIG. 6, the can C introduced from the insertion unit 61 rolls on the base 2 of the winding inspection apparatus A provided to be inclined with respect to the horizontal plane. It descends while being discharged from the outlet 62.

  Here, the detection (capture) of defective products will be described in detail. FIG. 7 shows the relationship between the shape of the tightening portion C1 and the shape of the groove portion 21. The shape of the tightening portion C1 is the entire circumference of the can C. In the case where both the tightening thickness T and the tightening width W are normal (the tightening thickness T = T1, the tightening width W = W1), the tightening portion C1 fits in the groove portion 21. The peripheral wall C2 of the can C is in contact with the pedestal 2, and the upper end of the peripheral wall C2 (not shown) does not interfere with the upper position defining member 5, and the can C descends while smoothly rolling on the pedestal 2. And is discharged from the outlet 62 (see FIG. 6).

  On the other hand, when the shape of the tightening portion C1 is abnormal (defective) in a part or all of the can C in the circumferential direction, the winding thickness T is abnormal (T2> T1) as shown in FIG. ), The winding portion C1 does not fit in the groove portion 21, and if the winding width W is abnormal (W2> W1) as shown in FIG. In any case, the can C floats in the direction of the arrow d, and the upper end of the peripheral wall C2 (not shown) interferes with the upper position defining member 5 to prevent the can C from rolling and the pedestal. In the middle of 2, the can C stops, that is, can be captured as a defective product.

  At this time, since the peripheral wall C2 of the can C is formed of a magnetic material, the peripheral wall C2 is attracted to the base 2 and rolls without slipping, and the shape of the tightening portion C1 is inspected over the entire circumference. Defective products can be caught reliably.

  By the way, as shown in FIG. 7, the recessed part 23 is partially provided in the site | part facing the surrounding wall C2 of the can C in the upper part of the base 2, and when the can C rolls, the base 2 and the can C You may make it form so that a clearance gap may be produced between the surrounding walls C2. By providing this recess 23, even if the burr of the tightening portion C1 is broken and magnetically attached to the base 2 (magnet 3), the burr can be accommodated in the gap, and the subsequent can C rolling failure The winding tightening inspection can be performed continuously and smoothly.

  In the above-described embodiment, the bottom portion (end portion C3) of the can C is wound up. However, as shown in FIG. 9, the bottom portion (end portion C3) of the can C is connected to the peripheral wall C2. And may be formed integrally.

  Moreover, in the Example mentioned above, although the example which attaches the magnet 3 to the base 2 was shown, what the base 2 itself is magnetizing (the base formed with the magnet) may be sufficient.

A Winding inspection device C Can C1 Winding part 2 Base 21 Groove part 3 Magnet 4 Other side end position defining member 5 Upper side position defining member

Claims (2)

A winding tightening inspection device for inspecting the shape of a tightening portion in a can having a cylindrical peripheral wall formed of a magnetic body, and making a can by winding an opening on at least one side,
A linear pedestal that is provided so as to be inclined with respect to a horizontal plane and is placed so that the peripheral wall of the can is in contact with the upper surface, and serves as a runway in which the can rolls under its own weight;
A linear groove portion that is provided side by side on this pedestal and has a cross-sectional shape corresponding to the shape of the winding fastening portion, and that receives the winding fastening portion,
An other end position defining member that abuts on the other end of the can and defines the position of the end;
An upper position defining member located on the opposite side of the pedestal across the can and defining an upper position of the can; and
The pedestal is magnetized so that the peripheral wall of the can can be attracted, or a magnet is attached thereto.   A portion of the upper portion of the pedestal facing the peripheral wall of the can is partially provided with a recess, and is formed so as to create a gap between the pedestal and the peripheral wall of the can when the can rolls. The winding tightening inspection apparatus according to claim 1.

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