Shikoku Kakoki Co., Ltd.

Akimasa Fujimoto

Michio Ueda

Hidekimi Yamamoto

Hiroshi Katayama

Masaru Yoshioka

A web position matching system for matching marks provided on a web of packaging material with a pitch corresponding to the length of one container, to a reference position comprises sensor device for detecting the displacement of the mark from the reference position, setting device for setting a usual amount of feed obtained by adding a predetermined amount of advance to a predetermined reference amount of feed corresponding to the length of one container when the displacement detected by the sensor device is smaller than a predetermined allowable displacement or setting a corrected amount of feed obtained by subtracting a predetermined amount of delay from the reference amount of feed when the detected displacement are not smaller than the allowable displacement, and device for correcting the usual amount of feed and the corrected amount of feed based on a pattern of frequencies with which the usual amount of feed and the corrected amount of feed are set by the setting device.

Web position matching system and packaging machine equipped with the system

The action pattern of the amount of web feeding by the lug folding flaps is made optimal in accordance with deviations of detection marks, such as specified printing patterns on the printing surface on web W, from the reference values when they are detected, and the pressing force applied onto web W by dancer roller 9 is stepwise or continuously adjusted according to the detection of the patterns. Therefore, in comparison with the conventional examples, it is possible to widen the corrective range for the amount of web feeding. Thus, the tolerance for printing errors on web W can be increased, and it is possible to operate the equipment without stopping. Furthermore, it is possible to produce packaging containers with printing patterns applied at appointed positions, and faulty products are eliminated.

Packaging container production equipment and packaging container

A packaging container production method for forming tubular web from sheet-like web and producing hexahedral packaging containers, wherein in order to secure a prescribed web W feeding amount, the operating amount of lug folding flaps, which forms a sealing part on tubular web by pressing both sides of the tubular web while folding the same, is set an idealistic position, pressure is generated at a cylinder 16 by a control device 23 via a control valve 31, in compliance with the deviation of the detection mark such as a specified printing pattern on the printing surface on web W from the reference position when the same is detected, and the tension applied onto web W is adjusted by the dancer roller 9.

The invention is to provide a method and a device, etc. for molding tubes, free from any fear of the web being broken, which do not generate any wrinkle on a web when molding a plate-like web to rectangular parallelpiped packaging containers via a tubular web. In a tube molding method of the invention for molding a plate-like web to a tubular web while transferring the former along the roller surface formed by a plurality of rollers 11 through 13 of the molding roller 4, a roller supporting plate 16 is turned by a tightening member 29 while being position-regulated by a roller 25 attached to the roller attaching arm 23 so that web is transferred on the basis of the hypothetical center axis line (Point X) of the tubular web, which is formed by the roller surface constituted by the rollers 11 through 13, wherein the web in the lengthwise direction can be accurately transferred so that the same web takes a predetermined orientation of the rollers 11 through 13. As a result, it is possible to produce a high molding accuracy, for which the creasing lines of web in the lengthwise direction are made coincident with ridges of square-post-like web in its lengthwise direction when molding the square-post-like web from the tubular web.

Tube molding method and device, and packaging container producing

Featured is a web sealing device for controlling the sealing pressure so as to carry out a sufficient sealing while monitoring the sealing pressure directly acting on the web. Also featured is a packaging container producing equipment using the aforementioned sealing device and a packaging container producing method using the same. When sealing a part of web W by engaging hooks 16a, 16b, which directly give a sealing pressure to the web W in order to seal a part of both web N by heating and melting both side surfaces of a double web while pressing the same, the strain amount of the hooks 16a, 16b is measured by a strain gauge 23. and the aforementioned sealing pressure is controlled by the controller 21 so that the waveform of the data, in which the values obtained by converting the aforementioned measured strain amount to pressure are continuously recorded in line with the elapse of time, becomes nearly identical to that of the master data, reflecting on the compressing time by the hooks 16a, 16b, compression timing, and the pressing force of the cylinder 18 for actuation of the hooks, and the adjustment of the drive amount of the drive device for the cross sealing of a pair of sealing jaws 7a, 7b.

Web sealing method and device, and packaging container producing method

A stamping device includes two stamp rollers and a support member having the two stamp rollers mounted thereon and arranged on a circumference having a center at a center of pivotal movement. The stamp rollers are spaced apart by a predetermined angle about the center, a rotary actuator for pivotally moving the support member so that one of the stamp rollers in a stamping position and the other stamp rollers in a standby position are alternately shiftable to the other position, and drive means for rotating the stamp roller in the stamping position.

Stamping device with rollers mounted for pivotal movement

A web sterilizing device comprising a sterilizing solution tank 51, web guide means for guiding a web W so as to bring the web w into the tank 51, dip the web w in a sterilizing solution within the tank 51 and thereafter move the web W out of the tank 51, a pair of endless chains 105 extending in parallel to each other both inside and outside the tank 51, chain guide means for guiding the chains 105 so as to move the chains 105 along respective opposite sides of a path for the web W to move along by being guided through the tank 51 by the web guide means, and a web engaging member 133 extending between and connected to the chains 105.

Growing community of inventors

Tokushima, Japan

Akimasa Fujimoto