JPS59221210A - Method and machine for making and filling bag - 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 is a method for making bags from strip material and filling them with filler material, the strip material being introduced between two rotating sealing rollers, first sealing the bottom and side edges while dispensing the filling material from the filling material container and stuffing it into the pocket thus formed, then closing the top edge and thus the bag and stripping. Regarding the method of separation and transport from the material,
It also relates to a machine for carrying out the method.

The production of the bag and its filling with filler material, for example chips or granular material, is carried out automatically. For this purpose, it is true that machines are used which are configured in different ways in units, but the formation of the bags and the filling of these bags with the metered quantities are carried out in a similar manner. In this case, the bag is continuously unwound from a roll with sheet material, creating two strips that run side by side at a cutting station and a folding station, and these strips are fed through two rotating strips at a sealing station. Introduced between seal rollers.

However, it can also be formed by rolling out two strips running side by side from two rolls. Both sealing rollers draw the material needed to form the bag from the roll or rolls and both seal rollers
Seal the whelk at the bottom and side edges of the bag to be formed.

At the same time, the amount is dispensed into the pocket thus formed.
The strip is packed with an amount of filler material and the top edge is also sealed as the strip is run. For the arrangement, for example, a chamber metering or a screw metering is provided. After closing the bag, the bag is transferred by guide rolls to a rotating cutting device where it separates the IJ tubules into individual bags.

In order to ensure heat sealing by both sealing rollers, it is necessary to precisely adjust the spacing between the two rollers. When producing bags of different sizes, rollers with differently arranged sealing webs can be provided, so that, for example, more than one bag can be produced. However, there is a drawback that the bag cannot be made to any size, but only to a predetermined size that is determined from the outer periphery of the seal roller.

The invention is based on the task of developing a method and a machine of the type mentioned at the outset, so that bags of arbitrary size can be produced to a relatively large extent.

To solve this problem, according to the present invention, the spacing between the rotation axes of the seal rollers is changed in order to make bags of other sizes.
These sealing rollers can then be replaced with two other suitable sealing rollers.

A machine according to the invention for carrying out this method is characterized in that the shafts of both sealing rollers are each rotatably supported in a pair of bearing blocks, and these bearing blocks are slidably guided relative to said shafts. It is characterized by

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to embodiments.

FIG. 1 shows a machine for making and dispensing bags. This machine consists of a housing 2 supported on a base 1.
The housing has a housing in which the drives and controls for the individual elements are housed. These elements include a filler container 3 with a dosing device 4, a sealing station 5 with a cutting device 6, a storage roll 7 with sealable material in strips and a swingable sorting gate 9.
It has a guide passage 8 having a.

In figure 21ii1[8 the sealing station 5 is shown in detail. The sealing station 5 has two sealing rollers 1-O, of which only one roller is shown in FIG. These seal rollers 1
0 is supported by the shaft 11 and is a tail. The sealing roller 10 has some gel web 12, which sealing cross-piece 12, which is incorporated therein, can seal the bag binding.

From the storage roll 7 the material 18 in the form of an IJ is unwound and fed to a cutting and folding device, not shown in detail, where the material in the form of a string is separated into two overlapping strips 15, 16. and guided between sealing rollers 10. In FIG. 3, the parts of the cutting device and the folding device are shown schematically at 14.

FIG. 2 shows 100 wheels of two different sealing rollers. The spacing between the rotation axes 170 of these two sealing roller volumes, indicated by the compound arrow, is a spacing range 18, within which both axes 11 of the sealing roller 100 can be adjusted and other sealing rollers can be provided to A bag 19 of the type can be made.

Each of the two sealing roller shafts 11 is supported by a roller bearing 22 in two bearing blocks 20.21. A spindle 2 in which a bearing block 20.21 is slidably mounted on a guide shaft 28 and is adjustable by means of a nozzle 24.
5 can be adjusted. For this purpose, the spindle 25 has two opposing threads 26 each with a spindle nut 27. Bearing block 20
．． 21 is threadedly engaged with a spindle screw 26 and forms a recess 28 in which a spindle nut 27 is present. No.7
When the spindle 25 is rotated by the dollar 24, the spindle nut 27 and thus the bearing block 20.21 are moved closer or farther apart. - the sealing roller shafts 11 are driven via a common drive shaft 29; Arranged on the drive shaft 29 are two opposing worms 30 , each of which is meshed with a worm gear 81 seated on the shaft 11 .

The drive shaft 29 is connected to the drive shaft 29 in a manner not shown.
It is driven by a drive device located at. drive shaft 29,
A bearing block 20, 21 with a worm transmission 80, 81 and a shaft 11 is integrated into a nozzle 82, which is fixed to the front wall 33 of the housing 2.

A shaft K allows the bearing blocks 20, 21 of each shaft 11 to be adjusted together.
．． 21 and the spindle 25' by a winding transmission 34, for example a chain transmission.

The bag 19 sealed by the seal roller 10 is moved downward by the rotating feeding device 85, and at this time, the roller 36 of the feeding device 35 is driven from the shaft 11 by the winding transmission 37. Subsequently, the strip of sealed bags 19 is separated into individual bags by a cutting device 38. The cut bags 19 fall into the guideway 8 and can be collected and packaged at the end of the guideway.

Adjustment of various bag capacities can be carried out without difficulty and without problems. First, the seal roller 10 is removed and replaced with another seal roller, and the rotation axis 170 interval of the shaft 11 is changed by rotating the handle 24, and finally the seal rollers 10 are overlapped. Both strips 15, 16 are in a position where they can be pressed together and sealed. In this case, the important thing is that the spindle nut 2
7 are self-retaining and actually exist in the recess 28 without any gaps, so the spacing between the rotating shafts 17 does not change during operation.

If the spindle 25 is used simultaneously as a guide shaft instead of the lower guide shaft 23, the drive mechanism for the sealing roller 1.degree. can be made somewhat simpler. As a result, the spacing of the spindle nut 27 from the center of rotation 17 of the sealing roller shaft 11 becomes even smaller, and thus favorable force transmission conditions are achieved.

[Brief explanation of drawings]

Figure 1 is a front view of the machine that makes and fills bags, Figure 2
The figure is a cross-sectional view of the housing of the seal roller drive device taken along line ■-■ in Figure 8, and Figure 3 is a cross-sectional view taken along line ■-■ in Figure 2.
FIG. 3 is a cross-sectional view of the housing of the seal roller drive device taken along -■. 3...Filling material container 10...Seal roller 1
1...Axis of the seal roller 13.Fist-strip material 17...Rotation axis center of the seal roller Agent Hikaru Esaki Good agent Hikaru Esaki

Claims (7)

[Claims] (1) A method of making a bag (19) from a strip material (13) and filling it with filler material, in which the strip material (13) is guided between two rotating seal rollers, and these are first While sealing the bottom and side edges with rollers, the filling material is dispensed from the filling material container (3) and stuffed into the pocket thus formed, and then the top edge and thus the bag (19). Close the strip material (13
), in order to make bags of other sizes, the rotation axis (17
) and replacing the sealing roller (10) with two other correspondingly suitable sealing rollers (IO). (2) A method of making a bag (19) from a strip material (13) and filling it with a filler material, in which the strip material (13) is guided between two rotating sealing rollers. sealing the bottom and side edges of these rollers, and dispensing the filling material from the filling material container (3);
The pocket thus formed is then filled, the upper edge and thus the bag (19) is closed, and the strip material (19) is closed.
3) How to separate and carry away from &-C1 In order to make bags of other sizes, the rotation axis (17) of the seal roller (10)
) and replacing the sealing roller (10) with two other correspondingly suitable sealing rollers (10), the axes (11) of both sealing rollers (10) are each a pair of bearing blocks (
20, 21+, the bearing blocks being slidably guided transversely to said shaft (11). (3) Both one bearing block (20) and the other bearing block (21) of the two pairs (20, 21) are each supported by a guide shaft (23), and the axis of two of these guide shafts is Existing in one plane on both sides, and having both axes (11)
Machine according to claim 2, which lies parallel to the plane formed by the axis of rotation (17) of the machine. (4) The bearing block (20, 21) is connected to the spindle (2
5) is provided with a spindle (25) having two counter-spindle screws (26) and one spindle collar) (27) in each case, the spindle collar) (2
4. Machine according to claim 3, characterized in that the bearing block (20, 21) is inserted into the recess (28) of the bearing block as a bearing member of the bearing block (20, 21). (5) Machine according to claim 4, characterized in that the spindle (25) at the same time features a guide shaft (23). (6) Both seal roller shafts (11) each share a common drive shaft (2) via one gear transmission (30, 81).
3. The machine according to claim 2, wherein the driving connection with both sealing roller shafts (11) remains maintained even when changing their spacing. (7) The gear transmission device is a worm transmission device (80J1), and the worm (80) has a length such that it meshes with the worm (3o) over the entire clearance range (18) of the seal roller shaft. Machines described in scope item 6.