JPS6216323A - Vertical sealer feeder for bag-making filling packaging machine - 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 vertical sealer feeding device in a vertical form-fill-seal packaging machine.

BACKGROUND ART Conventionally, there is a conventional bag making mechanism as shown in FIG. Vertical sealers 24a, 24 having a length equal to the length of the bag to be made to vertically seal the overlapping portion of the overlapping films 1'
b and a guide tube 2 are required.

Here, the length of the vertical sealers 24a, 24b and the guide tube 2 increases the machine height of the packaging machine, which is a drawback of conventional packaging machines.

In other words, it is not possible to downsize the packaging machine.

It has drawbacks such as high equipment costs, inability to install in rooms with low ceilings, and inconvenience in handling.

This invention is a vertical sealer feeding device that can solve this drawback and make a packaging machine with a low machine height. This is what we are trying to provide.

11111111 odd, L]χρ-3 For this reason, in the present invention, a pair of vertical sealers are attached to the opening/closing mechanism below the 7 ohm and in front of the guide tube in the bag making, filling and packaging machine. A pair of feed rolls are attached to the rotation transmission mechanism at a lower position, and one of the feed rolls is further equipped with a moving mechanism that allows the bearing to be opened and moved.

Also, an air jet nozzle is provided between the vertical sealer and the feed roll. Furthermore, an encoder is provided in the rotation transmission mechanism of the feed roll so that the amount of feed of the feed roll can be measured.

Function As described above, in this invention, the overlapping part Z of the cylindrical film is sandwiched and sealed by the vertical sealer, and the feed roll is rotated to send the film downward for a certain length, so that the cylindrical film can be sent downward by a certain length as shown in the conventional packaging machine in Fig. 2. It eliminates the need for a long vertical sealer and a long guide tube, lowers the height of the packaging machine, saves equipment, and reduces costs, making operation and handling easier.

Firstly, to explain the embodiment of this invention device, FIG. 1 is a front view, and FIG. 5 is a perspective view. , 5
The packaging film 1 is formed into a cylindrical shape to become a cylindrical film 1', and the overlapping parts 10χ of the overlapping edges (in the shape of joined hands) are provided so as to be intermittently sandwiched between them. (Air jet nozzle 51 that cools the overlapping section 10
A, please provide 5tb.

The outer periphery of the overlapping part 10 which is sandwiched between the jet nozzles 51a and 51b and rotates intermittently? A pair of feed rolls 6 a m 6 b Y made of an elastic material such as rubber is provided.

Also, as shown in the 7th sentence of Fig. 4, this vertical sealer 5a
, 5b and its opening/closing mechanism 52. Feed roll 6a.

6b, its rotation transmission mechanism 55, and a moving mechanism 54 for one of the feed rolls 6b. The air jet nozzles 51a, 51b, etc. are grouped together below the front surface of the W former 5 to form the vertical sealer feeding device 4.

' The structure of the vertical sealers 58, 5b and their opening/closing mechanism 52 is as shown in the plan view of FIGS. 3 and 4 and the front view of FIG. 1M5. , 5b are actuating bases 7, respectively.
a, 7b, and the slide shafts 8a*8bχ are fixedly mounted on the holding base 9 at vertical intervals.
, 7b are slidably fitted to the slide shafts 8a, 8b. A connecting portion 11B provided on the front surface of the operating table 7a connects to the tip of the operating shaft of the air cylinder 12 attached to the holding table 9, and a connecting portion 11B also provided on the front surface of the operating table 7b.

It is connected to the end of the operating shaft of an air cylinder 13 attached to the holding stand 9, and when both air cylinders 12 and 13 operate synchronously, one operating stand 7a, 7b opens and closes along the slide shafts 8a, 8b, and vertically The tips of the sealers 5a and 5b are brought into contact with each other and separated to form an overlapping portion 10' (I) of the cylindrical film 1'.
-It is sandwiched and sealed. Below the vertical sealers sa and sb are air jet nozzles 51a for rapidly cooling the 10 parts that will be heat-sealed and then polymerized.

ib 4 is provided, and below it there is provided a transmission Qt: I-rule 6a*'b and a rotation transmitter 111155 shown in the plan view of FIG.

After being rapidly cooled, the cylindrical film 1' is fed downward in the polymerization section 10 between two feed rolls 6a and 6b with intermittent rotation.
FIG. 7 shows a support stand 16 that supports the feed rolls 6a and 6bY.
And bearing 17,113y! - In the front view shown, the feed roll 6a is moved laterally to the bearing 18 side and is in contact with it.

6b'& release moving mechanism 54Y is shown, and the rotation transmission mechanism 55 is not shown.

A pair of feed rolls 6a, 6b are mounted on bearings 17. of the support base 16.
18 and a gear 20 at the end of the shaft of the roll.
．． A gear 21 with a larger diameter is coaxially combined on the gear 20 side, meshing with the gear 22 of the encoder 50, and a bevel gear 25a is attached coaxially to the front of the gear 21. On the other hand, an electric motor 15 with a transmission is provided at a position adjacent to the support stand 16,
The bevel gear 25d of the rotating shaft meshes with the bevel gear 25c on the clutch 14 side of the clutch brake device provided on the front surface of the gear 20', and the bevel gear 25b of the brake 14' meshes with the bevel gear 25a. The electric motor 15 with a transmission rotates through each bevel gear 25d, 25c.
.

25b, 25a and gear 20.20' transmission 90-
Le 6a.

Rotate 6b.

Next, in FIG. 7, the moving mechanism 34 for contacting and releasing the feed rolls 6a and 6b is fixed to the support stand 16 and is provided with a bearing 17 and a movable bearing 18. A feed roll 6b is supported, and a bearing 18 is connected to the operating shaft of an air cylinder 19 attached to the side of the support base 16. The bearing 18 moves by the operation of the air cylinder 19, and the feed roll 6b moves to the feed roll 6a. contact with v
unravel.

Next is the operation based on this invention? To explain, packaging film 1
is formed into a cylindrical shape by the guide tube 2 and former 3 to form a cylindrical film 1', and an overlapping part 10 where both edges of the film overlap.
The cylindrical film 1' is heat-sealed and then sent downward intermittently. First, the rolls 6a and 6b are released and opened by the operation of the air cylinder 19, and the vertical sealers 5a and 5b are also released from the air cylinder. 12. With the operation of step 15, the vertical sealers 5a, 5b, and feed rolls 6a*6b are applied to the overlapping part 10 of the cylindrical film 1' at intervals.
The air cylinder 19'la is activated so that the overlapping portion 10 is sandwiched between the feed rolls 6a and 6b.

Next, when the electric motor 15x with a transmission is rotated and the clutch 14Y is activated, the feed rolls 6a and 6b begin to rotate.

At the same time, the vertical sealers 5a and 5b are closed by the operation of the air cylinders 12 and 15, and the tubular film 1' sandwiching the overlapping portion 10'4 is sent downward by a length χ determined by the intermittent rotation of the feed rolls 6a and 6b. The overlapping part 10 descends while being heat-sealed by the vertical sealers 5a and 5b, but the air jet nozzle 51 below the vertical sealers 5a and 5b
The overlapping portion 10 sealed by the air jetted from the rollers 6a and 31b is immediately cooled and transferred to the lower feed rolls 6a and 6.
b, and the cylindrical film 1' is fed further downward by intermittent rotation of the feed rolls 6a and 6b. Air jet nozzle 31a.

The air jet 51b is performed while the feed rolls 6a+6b are rotating, and when the feed rolls 6a+6b stop rotating one rotation, the air jet also stops.

The vertical sealers 5a and 5b sandwich the descending overlapping part IQ71, so do not apply strong pressure.
Adjust the air pressure.

Also, an air jet nozzle! Without cooling of the overlapping portion 10 by ilB and 51b, the single overlapping portion 10 becomes soft due to heat sealing, and even when sent to the feed rolls 6a and 6b, the overlapping portion 10 stretches and cannot be reliably sent downward.

Rotation Y of feed rolls 6a, 61) Measurement j Roux r-
7:17 - The length of the bag to be fed out by the roller 50 is determined, and when the determined feeding rolls 6a and 6b have finished rotating, the clutch 14 is disengaged and the rotation from the electric motor 15 is 'kM'.
Immediately, the brake 14' is activated to move the feed roll 6a.
The rotation of +6 b is abruptly stopped. At the same time, air cylinder t2. t5 operates and the vertical sealers 5a, 5
b stops descending and separates from the specific polymerization section 10 and opens.

Next T/c A horizontal sealer 27 is installed in the horizontal sealer 26 shown in FIG. When this is completed, the horizontal sealer 27 opens, the upper part is sealed, and the bag-shaped film r falls down, and the vertical sealers 5a and 5b again sandwich and close the overlapping part of the cylindrical film by the operation of the air cylinders 12 and 15, at the same time.

The feed rolls 6a, 6b begin to rotate. The nine bags are fed downward by a predetermined length t, and the rotation of the feed rolls 6a, 6b is abruptly stopped by electrical instructions by the rotation of the encoder 50, and the vertical sealer 5a is fed.

5b also opens. By repeating such intermittent operations, the filling material χ is put into the hopper 29 at the packaging timing, and the next color packaging is intermittently produced.

When the filling is not put into the hopper 29, the 4° feed rolls 6a and 6b do not rotate and the vertical sealer 5&.

5b also does not close. When the filling is introduced into the hopper 29 (detected by a sensor attached to the hopper 29), the vertical sealers sa and sb close and the feed rolls 6a and 6b start rotating at a constant rate.

In this invention, the length of one bag was measured using the encoder 50, but other methods may be used.

Effects of the Invention This inventive device feeds the overlapping portion 10 of the cylindrical film 1' downward by the length of the -leg by rotating the feed rolls 6a+6b while sandwiching and sealing the overlapping portion 10 of the cylindrical film 1' with the vertical sealers 5a+sb. The button, the long vertical sealers 24a and 24b, and the long guide tube 2 as in the conventional packaging machine shown in FIG. 2 are not necessary.
Therefore, it is possible to lower the machine height of the packaging machine, making it possible to save one piece of equipment and reduce the price.The low machine height also makes it easy to operate and handle, which has a great effect.

[Brief explanation of the drawings] Figure 1 shows this invention! Figure 2 is a front view showing an overview of a conventional belt-feeding bag making, filling and packaging machine, and Figure 5 shows the main parts of the present invention. A perspective view, FIG. 4 is a plan view of the operating mechanism of the vertical sealer, FIG. 5 is a partially sectional front view, and FIG. 6 is a plan view of the rotation transmission mechanism of the feed roll. 1 FIG. 7 is a plan view of the feed roll bearing FIG. 3 is a front view of the moving mechanism of FIG. 2 is a guide tube, 5 is a former, 4 is a vertical sealer feeding device,
sa, sb are vertical sealers, 6a, 6b are feed rolls, 5
1 is an air jet nozzle, 52 is an opening/closing mechanism, 55 is a rotation transmission mechanism, and 54 is a moving mechanism. '-'・＼ Agent Hide Horie 已'n', 1)-No. Proceedings Amendment (Voluntary) October 2-z, 1985

Claims (2)

[Claims] (1) Form a heat-sealable sheet-like packaging film into a tube using a guide tube and a former, vertically heat-seal the overlapping parts of both edges of the film, and then perform horizontal heat-sealing to form the filling into a bag shape. In a bag making, filling and packaging machine that fills and seals the film, a pair of vertical sealers are attached to the opening/closing mechanism below the former and in front of the guide cylinder to prevent the overlapping part of the cylindrical film being formed into a cylinder. The overlapping portion is heat-sealed and then heat-sealed by air jetted from an air jet nozzle located below the vertical sealer. The overlapping portion is then rapidly cooled and sent to a pair of feed rolls below. A vertical sealer feeding device for a bag-forming-fill-sealing machine, characterized in that the vertical sealer feeding device is provided with a moving mechanism capable of moving and separating one bearing of the feeding rolls that are in contact with each other. (2) A vertical sealer feeding device for a bag making, filling and packaging machine according to claim 1, wherein an encoder is attached to the rotation transmission mechanism of the feeding roll.