JPH0629043B2 - Gloss weighing packaging method using flexible packaging material - Google Patents

Description

The present invention relates to a gross weighing and packaging method using a flexible packaging material.

Conventionally, gross weighing is performed by placing a packaging bag on a belt conveyor that has a straight line, and filling the packaged object during transportation.
Although packaging and sealing are performed, it is difficult to use a packaging bag made of a flexible material.

The present invention is intended to solve the above problems,
The feature is that a filling table and a sealing table that rotate intermittently are installed side by side, and at the filling table, a position below the opening end of the packaging material by a certain size is grasped by a table gripper, and a large-scale input is performed. Is held by the table gripper, then the upper edge of the packaging material is gripped by the post-stamp quantitative detector and the dispensing operation is performed with the upper edge of the packaging material removed from the table gripper. Grip again with a par, and when stamping a second time on the table, the upper edge of the opening of the packaging bag is gripped and changed by a pair of front and rear sealing plates provided on a sealing table that is adjacent and rotates at the same speed. During the rotation of the seal table, the opening edge is sealed and cooled so as to be discharged.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

Reference numeral 1 is a filling table, which is intermittently rotated (8 sections in the illustrated example) via a driving means (not shown). Reference numeral 2 is a bag-making device, which is a raw fabric supporting means 2a in which a flexible synthetic resin material 3 is wound, dancer roll means 2b for keeping the feeding tension constant, a bag-making roll 4, a bag-making seal heater 5 and a feeding roll. A bag 8 made of 6 and a cutter 7 is cut by the cutter 7 when gripped by the table grippers 9 and 9 ′ attached to the outer peripheral surface at the section of the filling table 1.

Now, when the section of the filling table 1 is intermittently rotated to reach the section, the front surface of the bag 8 is adsorbed by the vacuum suction cup 11 to form an opening. In the section, the material 13 to be packaged from the large-scale screen hopper 12 is put in through the funnel 14 into the opened bag at the location where the material to be packaged is to be largely sized.
At this time, 15 is a tapping bar for coming into contact with and hitting the bottom of the bag 8, and 16 is its operating cylinder. Thus, the material 13 to be packed, which has been thrown into the bag 8 in a large amount, is pressed by the section through the stamp 17 from above. 18 is the working cylinder.

Next, when reaching the section, the bag is held by the measuring grippers 20, 20 'of the quantitative detector 19 arranged on the surface side of the table grippers 9, 9'on the side facing the filling table 1, When the grip is changed, the table gripper 9,
9'is opened, and in this state, the material to be packaged is fed through the funnel 22 so as to replenish the shortage from the dispensing screw hopper 21, and the weight is made regular. Then, again, the table grippers 9 and 9'are held in their original positions, and the weighing grippers 20 and 20 'are opened.

On the other hand, in the section, the upper side is pressed again by the stamp 23, and subsequently, in the section, a pair of seal claws that hold the upper edge of the opening of the packaging bag 8 from the seal table 24 that is adjacent and rotates intermittently at the same speed. 25a and 25b are extended to grip the front and rear portions of the opening. When gripping is completed, the table grippers 9 and 9'are opened and the delivery to the seal table 24 is completed.

Here, the seal table 24 is rotated intermittently at the same speed as the filling table 1, and the bags filled with the packaging material are gripped and changed by the filling table 1 one by one to seal the open end. . In addition, the seal is a seal claw 25a, 25b
The heater cast in the claws is momentarily energized together with the gripping, and then the cooling claws 25a and 25b are released by gripping the seal claws 25a and 25b in sequence during the intermittent rotation process. It becomes a thing. In the illustrated example, 26 is a conveyer for delivery, and 27 is a holding lever for sandwiching the packaging bag so that the packaging bag is always placed on the conveyor 26 in a fixed direction.

The present invention is configured as described above, and it is possible to easily and efficiently carry out gloss measurement packaging using a flexible packaging material, which has been conventionally difficult.
In addition, according to the method of the present invention, it is possible to obtain a product having an appropriate filling function in a simple combination in relation to the size and capacity of the filling amount, and moreover, the quantitative detector directly determines the completion of weighing. Because of the check, when a defective product with insufficient weight is generated, the grasping claw is opened on the spot and immediately dropped, so that it is not mixed with other non-defective products. Further, since the feed back for changing the rough filling amount is performed by calculating from the amount supply time of the dispensing supply, even if the adhered growth of powder particles or the like occurs in the screen, the performance is not hindered.

[Brief description of drawings]

The accompanying drawings are schematic illustrations of an apparatus showing one example of the method of the present invention. 1 …… Filling table, 2 …… Bag making device 8 …… Packing bag, 9,9 ′ …… Table gripper 12 …… Large-scale screen cleaner 15 …… Tapping bar, 17 …… Stamp 19 …… Quantity Detector, 21 …… Small-scale screener 23 …… Stamp, 24 …… Seal table 25a, 25b …… Seal claw, 26 …… Sending conveyor 27 …… Clamping lever

Claims (2)

[Claims] 1. A filling table and a sealing table, which rotate intermittently, are provided together, and the filling table is held at a position below the opening end of the flexible packaging bag by a certain size with a table gripper, and a large-scale throw-in is performed. Is held by the table gripper, then the upper edge of the flexible packaging bag is gripped by the post-stamp quantitative detector and the dispensing operation is performed with the upper edge of the flexible packaging bag removed from the table gripper. Grip again with a tool and hold the upper edge of the opening of the flexible packaging bag with a pair of front and rear seal plates provided on the seal table that is adjacent and rotates at the same speed when the second stamp is performed on the table. However, the opening edge is sealed while the seal table is being rotated, and the sealing table is cooled so that the sealing table is discharged. 2. The gloss measuring and packaging method using the flexible packaging material according to claim 1, wherein the flexible packaging bag is a heat-welding plastic film.