JPS6252002A - Gross weighing packaging method using flexible material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a method for measuring gross in flexible packaging.

Conventionally, gross weighing involves placing packaging bags on a belt conveyor that runs exclusively in a straight line.
This method involves wrapping, sealing, etc., but packaging made of flexible materials is difficult to handle, so it is not used.

The present invention aims to solve the above problems,
The feature is that a quantitative detector (weight checker) is installed for each section on a table that rotates intermittently according to each section. The bag is grasped, and in section [2] the bag opening is opened, in section [3] the bulk material to be packaged is loaded from the large screw hopper, and in section [4] the bag is loaded into the bag. In section [5], the material to be packaged is charged from the dispensing screw hopper, and in section 2, the material to be packaged in the bag is stamped again by the stamping device, and the material to be packaged in the bag is stamped by the stamping device. In section [8], the opening edges are sealed, and in section [8] the grip is released to allow release.

An example of implementing the method of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a rotary table which is intermittently rotated in the direction of the arrow (8 in the illustrated example) according to each section via a drive means (not shown).
section).

Reference numeral 2 denotes a bag-making device, which includes a raw fabric support ^2a wound with a flexible synthetic resin material 3, a dancer roll means 2b for keeping the feeding tension constant, a bag-making roll 4, and a bag-making roll 4. The bag 8 that has been made from the bag seal heater 5, the feed row/shield 6, the cutter 7, etc. is held by the gripping claws 10 and 10 of the quantitative detector 9 in section 2 of the rotating tape/L/1. The quantitative detector 9 is then cut by the cutter 7. A plurality of tubes (eight in this example) are fixed on the table 1. In the illustrated example, the tape/I/1 is divided into eight sections. The number of cylinders rotated intermittently is the same as the number of cylinders rotated intermittently.

Now, when the bag 8 reaches section (2) by intermittent rotation of the tape /L/1, the bag 8 is sucked by the vacuum suction cup 11, and air is jetted from the compressed air jet pipe 12 disposed above to open the bag. Section ■ is a place where a large amount of material to be packaged is taken out, and a large amount screw hopper 13 is placed in the opened bag.
The material to be packaged 14 from is fed through the funnel/l/15. At this time, 16 is a tapping par for contacting and tapping the bottom of the bag 8, and 17 is an operating cylinder thereof.

The material to be packaged 14 thrown into the bag 8 in large quantities is pressed from above through the stamp 18 in section (2). 19 is its working cylinder.

Next, when reaching section (2), the material to be packaged is introduced into the bag from the dispensing screw hopper 20 through the funnel 21 to replenish the missing amount, and the bag is made to have a regular weight. On the other hand, in section ■, the upper part is pressed again with the stamp 22, and then in section [7
], a separately provided sealing means 23, that is, a pair of sealing claws 23
The upper edge of the opening of the bag 8 that has been filled is gripped at a and 23b, and a heater cast into the gripping claw is momentarily energized to perform a thermal weld seal, and the sealing claws 23a and 28b are opened.

On the other hand, in section [8], the gripping claw 10.1σ is opened and the sheet is discharged onto the feeding conveyor 24 provided at the back of the table side. In this case, reference numeral 25 is a clamping lever for clamping the packaging bag so that it can be released in a fixed direction.

The present invention is constructed as described above, and enables gross measuring packaging using flexible packaging materials, which has been considered difficult to implement, to be carried out easily and extremely efficiently.

In addition, in the present invention, since the quantitative detector directly checks the completion of measurement, if a weight defect occurs, the gripping claw is opened on the spot and the product is ejected, so that it will not be mixed with other good products. be. In addition, since the feedback for changing the coarse filling amount is calculated based on the small amount feeding time of the dispensed feed, even if powder or granules adhere to and grow on the screw, the performance will not be affected.

[Brief explanation of drawings]

The accompanying drawings are schematic illustrations of an apparatus illustrating an example of carrying out the method of the present invention. l...Rotating degree tape/L/3...Packaging bag 9...Capacity detector 10.10'...Gripping claw 13...Large screw hopper 15...
・Fanne/L/ 16 ... Tapping bar 18 ... Stamp 20 ...
・Koide Siskuri Yuhora/Ku 22... Stamp 23... Sheet TV Means 24... Conveyor for sending out sheets

Claims (1)

[Claims] (1) The circumferential direction is divided into a large number of sections, and the same number of quantitative detectors (weight checkers) corresponding to each section are arranged on a table that rotates intermittently according to each section. In section [2], the bag opening is opened, in section [3], the material to be packaged is loaded from the large-discharge screw hopper, and in section [4], the packaging bag made of flexible material is grasped. The material to be packaged put into the bag is stamped by the stamp means, and in section [5] the material to be packaged is introduced from the dispensing screw hopper, and in section [6] the material to be packaged in the bag is stamped again by the stamp means. A gross measuring packaging method using a flexible material, characterized in that stamping is performed, the opening edge of the packaging bag is sealed in section [7], and the grip is released in section [8] so that the bag can be released.