JP2006335425A - Container, and positioning method for container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tubular container which can clearly grasp a positioning position, and to provide a positioning method for the container. <P>SOLUTION: This container has a wedge-like protuberance at an arbitrary location of a base at the lower end of the mouth of the container. In this case, the wedge-like protuberance clearly senses a positioning point for printing and so on on the peripheral surface of the container. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to container positioning, and more particularly to a tube container and a container positioning method capable of clearly detecting a positioning position.

Conventionally, in order to perform printing at a fixed position on the peripheral surface of the container, there is a container in which a concave portion or a protruding portion for positioning is formed at the mouth portion of the container. In FIG. 7, 50 is a synthetic resin or metal tube container, and a threaded portion 52 of the mouth portion 51 has a notch 53 formed in the vertical direction. FIG. 10 shows a case in which a circular or elliptical protrusion 62 is formed on the lower end base 61 of the mouth of the tube container 60. Then, as shown in FIG. 9, the detecting device 56 that detects the notch 53 and the protrusion 62 condenses the light quantity 59 sent in parallel from the laser projector 57 to the laser receiver 58 onto the light receiving element. The amount of light sent in parallel is changed by the rotating cutout 53 and the protrusion 62, and this change is taken out as an analog voltage output to detect the minimum point of light and recognize the positioning point. It is what. In addition, there exist patent document 1 and patent document 2 regarding the conventional detection apparatus.
Japanese Utility Model Publication No. 44-23038 JP 2003-39533 A

  However, in the case where the notch portion 53 is formed in the screw portion 52 of the mouth portion 51 in FIG. 7, as shown in FIG. A light quantity point Y and a plurality of light quantity points X (Y> X) are detected. Therefore, since the minimum point of the light quantity 59 cannot be recognized, it is difficult to accurately grasp the positioning point for printing or the like. As shown in FIG. 9, since two notch end portions 54 and 55 are formed on both sides of the notch portion 53 of the screw portion 52, the notch portion end portions 54 and 55 have the light amount 59. This is because it affects changes. As shown in FIG. 10, in the case where a circular or elliptical protrusion 62 is formed on the lower end base 61 of the mouth part of the tube container 60, the change in the light quantity 59 has a constant width as shown in FIG. Since the equal amount of light Z is detected over W, it is difficult to grasp a clear point in the same manner. The present invention has been made paying attention to such a conventional problem, and an object thereof is to provide a container and a positioning method capable of grasping a positioning point for clear printing or the like.

  The solution of the invention described in claim 1 is characterized in that it has a wedge-shaped protrusion that clearly detects a positioning point such as printing on the peripheral surface of the container at an arbitrary position on the lower end base of the mouth of the container. It is a container. Since the protrusion to be detected is not a protrusion such as a recess, a circle, or an ellipse as in the prior art, but a wedge-shaped protrusion with a sharp tip formed, a positioning point for printing or the like can be clearly detected.

  According to a second aspect of the present invention, there is provided a container characterized in that the tip angle α of the wedge-shaped projection is formed so as to satisfy 10 ° ≦ α ≦ 90 °. Similarly, since the tip is a wedge-shaped projection formed at an acute angle, a positioning point for printing or the like can be clearly grasped.

The solving means of the invention described in claim 3 is characterized in that the container is a tube container.
It is possible to clearly grasp the positioning point for printing the tube container.

According to a fourth aspect of the present invention, the container is a bottle container.
It is possible to clearly grasp the positioning point for printing the bottle container.

  The solution of the invention described in claim 5 is that the container is rotated and the wedge-shaped protrusion formed on the lower end base of the mouth of the container is rotated so as to be sent in parallel from the laser projector of the detection device to the laser receiver. The collected light amount is condensed on the light receiving element, and the change in the light amount sent in parallel is taken out as an analog voltage output, thereby detecting the minimum point of the light amount and recognizing the positioning point, This is a container positioning method. Since the minimum point of the light quantity can be clearly recognized, it is possible to clearly grasp the positioning point for printing or the like.

  According to a sixth aspect of the present invention, there is provided a container positioning method, wherein the tip end angle α of the wedge-shaped projection is formed so as to satisfy 10 ° ≦ α ≦ 90 °. Since the tip angle α of the wedge-shaped protrusion is an acute angle, a clear minimum point of light quantity can be grasped.

  According to a seventh aspect of the present invention, there is provided the container positioning method, wherein the positioning method is performed before the printing step. The print start position can be clearly specified.

  According to the present invention, since the protrusion is a wedge-shaped protrusion, when the light amount change is taken out as an analog voltage output, the waveform of the light amount change draws a parabola, and the positioning point for printing or the like that minimizes the light amount is clearly grasped. can do. Therefore, there is an effect that positioning such as printing can be performed accurately. In addition, according to the detection method of the present invention, the processing time can be determined quickly and accurately compared to shape recognition by a camera or the like, and is inexpensive.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a first embodiment according to the present invention. Reference numeral 1 denotes a tube container. A male screw 3 is formed at the mouth portion 2 of the tube container 1, and a wedge-shaped protrusion 5 is formed at an arbitrary position on the lower end base portion 4 of the mouth portion. The outer peripheral surface above the shoulder portion and the trunk portion of the tube container 1 is formed by four inverted triangular panels 6 and eight triangular panels 7 adjacent thereto, and The triangular panel 7 of the surface and the eight-faced tongue-like panel 8 having a common bottom surface are formed. In this case, in the positioning in the first embodiment, the straight line connecting the wedge-shaped protrusion 5 provided on the lower end base 4 of the mouth and the vertex 7a of the inverted triangular panel 7 is the base 7b of the inverted triangular panel 7. On the other hand, the position of the wedge-shaped projection 5 is determined so that it intersects perpendicularly and positioning is easy. Thereby, the start position of printing etc. can be determined clearly. The dimensions of each part of the wedge-shaped protrusion 5 are determined in consideration of the size of the container, the ease of forming the wedge-shaped protrusion 5 by the mold, the ease of detecting the light amount by the detection device, and the like. The tip angle α of the tip 5a of the wedge-shaped projection 5 is suitably 10 ° ≦ α ≦ 90 °, and preferably 45 ° <α <90 °. The height a of the wedge-shaped protrusion 5 is 0.5 to 5 mm, preferably 1 to 1.5 mm. Further, the length b from the mouth lower end base 4 is 1 to 5 mm, preferably 1.5 to 3 mm. The width d of the wedge-shaped protrusion 5 is 1 to 5 mm, preferably 1.5 to 2.5 mm.

  The detection device 10 for detecting the wedge-shaped protrusion 5 is composed of a laser projector 11 and a laser receiver 12, and is parallel to the transverse plane of the mouth 2 from the laser projector 11 to the laser receiver 12 in parallel. The sent light quantity 13 is condensed on the light receiving element of the laser receiver 12, and the minimum point of the light quantity is detected by taking out the change in the light quantity as an analog voltage output. That is, the light quantity 13 is affected and changed by the wedge-shaped protrusion 5 of the rotating tube container 1. This change in the amount of light is taken out as an analog voltage output, and the minimum point P of the amount of light can be detected for clear positioning. FIG. 5B is a drawing showing the position where the wedge-shaped projection 5 intersects perpendicularly to the amount of light 13 that travels, and FIG. 6 shows a graph representing the point P in this state. When the rotating wedge-shaped protrusions 5 intersect perpendicularly to the light amount 13 sent out in parallel, the light amount 13 becomes the minimum (light amount S). Therefore, the point P is represented at the bottom of the parabola corresponding to the light quantity S on the graph shown in FIG. If the light does not intersect vertically, the amount of light is represented in the graph as L (L> S). By such a detection method, an accurate printing position can be determined in a pre-printing process or the like. As shown in FIG. 6, the positioning of the tube container according to the present invention draws a parabola with a simple light intensity waveform, and can clearly grasp the minimum point P of the light intensity change due to the rotating wedge-shaped protrusion 5. Further, according to the tube container and the detection method of the present invention, the horizontal deviation accuracy is as small as ± 0.2 mm. Therefore, positioning such as printing can be performed accurately.

FIG. 3A shows a second embodiment according to the present invention. Reference numeral 21 denotes an elliptical tube container. A male screw 23 is formed in the mouth portion 22 of the elliptical tube container 21, and at any one position on the lower end base portion 24 of the mouth, the same as in the first embodiment. In addition, a wedge-shaped protrusion 25 is formed. Positioning such as printing of the elliptical tube container 21 is difficult unlike an ordinary circular tube, but clear positioning is possible by using the present invention. FIG.3 (b) is drawing which shows Example 3 which concerns on this invention. Reference numeral 31 denotes an elliptical bottle container. A male screw 33 is formed in the mouth part 32 of the elliptical bottle container 31, and at any one position of the mouth lower end base part 34, the same as in the second embodiment. In addition, a wedge-shaped projection 35 is formed.
Similarly, positioning such as printing of the elliptical bottle container 3 can be clearly performed by using the present invention.

  As an application example of the present invention, it can be widely used for tube containers, bottle containers, aerosol containers and the like, and can be used not only in the printing process but also in other positioning.

The top view which shows Example 1 which concerns on this invention. The front view which shows Example 1 which concerns on this invention. The top view and front view showing Example 2 (Drawing (a)) and Example 3 (Drawing (b)) concerning the present invention. The perspective view which shows the wedge-shaped protrusion of Examples 1-3 which concerns on this invention. Sectional drawing which shows the detection apparatus and detection method in this invention. The graph which shows the relationship between the light quantity detected by the detection method in this invention, and time passage. The front view which shows the tube container which has the opening part which formed the notch part in the conventional thread part. The graph which represented the relationship between the light quantity and time passage by detecting the tube container which has the opening part which formed the notch part in the conventional thread part by the detection apparatus. Sectional drawing which shows the conventional detection apparatus and detection method. The front view which shows the tube container which formed the circular or elliptical processus | protrusion in the conventional mouth lower end base. The graph which expressed the relationship between the light quantity and time passage by detecting the tube container which formed the circular or elliptical protrusion in the conventional mouth lower end base, with a detection device.

Explanation of symbols

1, 21 Tube container 2, 22, 32 Mouth part 4, 24, 34 Mouth lower end base part 5, 25, 35 Wedge-shaped protrusion 10 Detector 11 Laser projector 12 Laser receiver 13 Light quantity 31 Bottle container α Tip angle P Positioning point

Claims (7)

A container having a wedge-shaped protrusion that clearly detects a positioning point such as printing on the peripheral surface of the container at an arbitrary position on the lower end base of the mouth of the container. The container according to claim 1, wherein a tip angle α of the wedge-shaped protrusion is formed to be 10 ° ≦ α ≦ 90 °. The container according to claim 1 or 2, wherein the container is a tube container. The container according to claim 1 or 2, wherein the container is a bottle container. By rotating the container and rotating the wedge-shaped protrusion formed on the bottom base of the mouth of the container, the amount of light sent in parallel from the laser projector of the detection device to the laser receiver is condensed on the light receiving element. A container positioning method characterized by detecting a minimum point of light quantity and recognizing a positioning point by taking out a change in light quantity sent in parallel as an analog voltage output. 6. The container positioning method according to claim 5, wherein a tip angle α of the wedge-shaped projection is formed so as to satisfy 10 ° ≦ α ≦ 90 °. The container positioning method according to claim 5 or 6, wherein the positioning method is performed before a printing step.

Images