JPH05112326A - Heat-seal type paper joining device for packaging machine - Google Patents

Abstract

PURPOSE:To provide a heat-seal type paper joining device for a packaging machine, which can perform heat-seal of which the connecting strength is large. CONSTITUTION:Roll holders 1A, 1B are provided at a lower part of the device, and a top guide roll 2 is provided at an upper part of the device, and movable guide rolls 3A, 3B are provided at a intermediate part of the device. A heat-seal means 4, which can lower a heater bar 4a, is provided, and at the same time, movable heater receiving tables 5, 7, which can selectively confront a heater receiving surface 5a to the heater bar 4a by a shifting movement, are provided. In addition, a movable panel 9 to handle a web, which enters a gap between the heater bar 4a and heater receiving surfaces 5a, 7a from the opposite side to the packaging machine, and makes the inner surface sides of webs to be joined confront to each other, and then returns, is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sealing type paper splicing device for a vertical bag-making filling and packaging machine.

[0002]

2. Description of the Related Art Conventionally, when a raw fabric roll has been used in a vertical bag-filling and packaging machine, the packaging operation is stopped, and a web, which is a paper to be wrapped, is fed out from the raw fabric roll supported by a spare roll holder. As a result, the web ends of the raw rolls that have been used are added manually or semi-automatically to the ends of the webs, and the webs have not been added by heat sealing.

[0003]

When the webs are spliced together with an adhesive tape, the webs are weakly connected, and the seams of the webs are peeled off when they reach a narrow gap between the bag making machine and the product dropping and filling cylinder. There were relatively many accidents. For this reason, it has been desired to provide a paper splicing device capable of heat sealing with high connection strength.

The present invention has been devised in view of the above-mentioned points, and an object of the present invention is to provide a heat-sealing type paper splicing device for a packaging machine capable of heat-sealing with high connection strength.

[0005]

As a means for solving the above problems, the present invention provides a web U1, which is a paper to be packaged.
The original rolls R1 and R2 of U2 can be inserted from one end so that the pair of roll holders 1A and 1B holding the original rolls R1 and R2 are located on the lower side of the apparatus on the side of the packaging machine and the side of the opposite packaging machine. A top guide roll 2 that is provided in parallel and guides the webs U1 and U2 fed from the original rolls R1 and R2 to the automatic packaging machine is provided on the upper part of the apparatus, and the lower side of the top guide roll 2 is movable on the packaging machine side. The guide roll 3A and the movable guide roll 3B on the side opposite to the packaging machine are provided, and the web U1 fed from the original fabric roll R1 supported by the roll holder 1A on the side of the packaging machine is moved from the movable guide roll 3A at the side of the packaging machine to the top. The web U2 fed from the original roll R2 supported by the roll holder 1B on the side of the non-wrapping machine by switching the movement is wrapped around the web U2. The movable guide roll 3B on the machine side can be guided to the top guide roll 2 substantially vertically, and the heater bar 4a is provided on the outer surface side of the webs U1 and U2, which are below the top guide roll 2 and guided substantially vertically.
Is provided with a heat seal means 4 capable of descending downward, and when the web U is in a state of being guided from the movable guide roll 3A on the packaging machine side to the top guide roll 2 substantially vertically, the heater receiving surface 5a of the heater bar 4a A movable heater holder 5 on the side of the packaging machine that can be located at the opposite position is provided, and the heater holder is provided when the web U is guided from the movable guide roll 3B on the side opposite to the packaging machine to the top guide roll 2 substantially vertically. The surface 7a is the heater bar 4a
Is provided with a movable heater cradle 7 on the side opposite to the wrapping machine, which can be located at a position opposite to the heater bar 4.
A web separating moving panel 9 is provided which makes a return movement by facing the inner surface sides of the webs which enter from the side opposite to the packaging machine and are added to the gap between the a and the heater receiving surfaces 5a, 7a. A heat-sealing type paper splicing device for a characteristic packaging machine is provided.

[0006]

[Function] An arbitrary original roll R1 is inserted and held in the roll holder 1A, and the web U1 is unwound and guided from the movable guide roll 3A on the packaging machine side to the top guide roll 2 substantially vertically and guided to the packaging machine. I do. The original roll R
Before 1 is finished, another original roll R2 is fitted and held in the roll holder 1B, and the web U2 is fed out from the movable guide roll 3B on the anti-wrapping machine side to the movable heater cradle 7 on the anti-wrapping machine side. After passing over the heater receiving surface 7a, the web end is fixed with a strip magnet or an adhesive tape. When the raw roll R1 is finished, the packaging operation is stopped. Then, the movable guide rolls 3A and 3B and the movable heater pedestals 5 and 7 are switched and moved, and the heater receiving surface 7a of the movable heater pedestal 7 on the opposite packaging machine side is positioned below the heater bar 4a. Then, the web separating moving panel 9 enters the gap between the heater bar 4a and the heater receiving surface 7a from the side opposite to the wrapping machine, and moves back with the inner surfaces of the webs U1 and U2 added together facing each other. As a result, the heater bar 4a descends, heat seals the webs U1 and U2 which are in close contact with the heater receiving surface 7a, and rises up. Then, when the packaging operation is restarted, the web U2 is pulled by the web U1, guided substantially vertically to the top guide roll 2, and further guided to the packaging machine to perform packaging. Similarly, before the original fabric roll R2 is finished, another original fabric roll R1 is inserted and held in the roll holder 1A, and the web U1 is unwound to move from the movable guide roll 3A on the packaging machine side to the movable side on the packaging machine side. After passing over the heater receiving surface 5a of the heater receiving table 5, the web end is fixed with a strip magnet or an adhesive tape. When the raw roll R2 is finished, the packaging operation is stopped. First, the web separating moving panel 9 enters the gap between the heater bar 4a and the heater receiving surface 7a from the side opposite to the wrapping machine and folds in the web U1 so as to face the heater bar 4a. The rolls 3A and 3B and the movable heater pedestals 5 and 7 are switched and moved in the opposite direction to the above, and the heater receiving surface 5a of the movable heater pedestal 5 on the packaging machine side faces the lower side of the heater bar 4a and the web U1 therebetween. , U2 face each other. continue,
After the moving panel for web separation 9 is moved back, the heater bar 4a descends and comes into close contact with the heater receiving surface 5a.
1, U2 is heat-sealed to return and rise. afterwards,
When the packaging operation is restarted, the web U1 is pulled by the web U2, guided substantially vertically to the top guide roll 2, and further guided to the packaging machine to perform packaging.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a heat-sealing type paper splicing device for a packaging machine according to the present invention will be described below with reference to the drawings. The heat-sealing type paper splicing device of the packaging machine of this embodiment is configured completely automatically. More specifically, the rolls R1 and R2 of the webs U1 and U2, which are the paper to be wrapped, can be inserted from one end, and a pair of roll holders 1A and 1B holding the rolls R1 and R2 are provided at the bottom of the apparatus. A top guide roll 2 is provided in the upper part of the apparatus, which is provided in parallel so as to be on the side of the packaging machine and on the side opposite to the packaging machine, and which guides the webs U1, U2 fed from the original fabric rolls R1, R2 to the automatic packaging machine. A movable guide roll 3A on the packaging machine side and a movable guide roll 3B on the non-wrapping machine side are provided below the guide rolls 2 and supported by a roll holder 1A on the packaging machine side.
The web U1 fed from 1 can be guided substantially vertically from the movable guide roll 3A on the packaging machine side to the top guide roll 2, and the original roll supported by the roll holder 1B on the anti-wrapping machine side by switching the movement. The web U2 fed from R2 can be guided substantially vertically from the movable guide roll 3B on the side opposite to the wrapping machine to the top guide roll 2, and the web U1, which is below the top guide roll 2 and is guided substantially vertically. Heat seal means 4 capable of descending with the heater bar 4a facing downward is provided on the outer surface side of U2, and when the web U is in a state of being guided substantially vertically from the movable guide roll 3A on the packaging machine side to the top guide roll 2, the heater receiver Movable heater pedestal 5 on the side of the packaging machine and a movable heater on the side of the packaging machine that can position the surface 5a at a position facing the heater bar 4a. The web U1 on the lower side of the cradle 5
A used web edging cutter 6 on the packaging machine side capable of cutting the sheet is provided, and the heater receiving surface 7a is provided when the web U is in a state of being guided substantially vertically from the movable guide roll 3B on the non-packaging machine side to the top guide roll 2. A movable heater cradle 7 on the side of the non-wrapping machine that can position the heaters 4a opposite to the heater bar 4a, and a use on the side of the non-wrapper that can cut the web U2 below the movable heater cradle 7 on the side of the non-wrapper. A finished web edge cutting cutter 8 is further provided, and the heater bar 4a and the heater receiving surface 5 are further provided.
A web separating moving panel 9 is provided, which moves into the gap between the webs 7a and 7a from the side opposite to the packaging machine and is rejoined so that the inner surfaces of the webs facing each other face each other. A vertical panel 10 and a pusher 11 are provided for clamping and fixing the used web U1 or U2 at the upper side of the entrance passage of the web separating moving panel 9 prior to the movement of the above.

The roll holders 1A and 1B are pivotally supported by the side panel 12 at the ends opposite to the original roll fitting and inserting ends, and a handle (not shown) provided at the original roll fitting and inserting ends or the opposite end is rotated, The original rolls R1 and R2 can be chucked based on the center. The web U1 fed from the raw roll R1 is hung on the guide rolls 12, 13 and 14 and hung on the movable guide roll 3A on the wrapping machine side on the side opposite to the wrapping machine, and is fed from the raw roll R2.
2 is hung on the guide rolls 15, 16, 17, 18 and hung on the movable guide roll 3A on the side opposite to the wrapping machine, and the length from the feeding start end of the original roll R1 of the web U1 to the additional position and the original of the web U2. The length from the feeding start end of the anti-roll R2 to the additional position is the same.
Each of the guide rolls 12 and 15 has a groove formed around the center of the roll, and the limit switch 19 or 20 is formed.
When the switch piece 19a or 20a is installed so that it enters into the groove and the switch piece 19a or 20a enters the groove after the use of the original roll R1 or R2, the operation stop signal is output and the end of the web U1 or U2 is terminated. Is in the state of being closest to the cutting position of the used web edge cutting cutter 6 or 8, and when the eye mark of the web U1 or U2 comes to the position facing the heater receiving surface 5a or 7a, the operation stop output is performed. It has become.

A groove is formed around the center of the top guide roll 2 so that the switch piece 21a of the limit switch 21 can be inserted thereinto. If the paper splicing is improper, the webs U1 and U2 are separated from each other. If the web U1 or U2 passes through the top guide roll 2 and the passage of the web is interrupted, the switch piece 21a
Enters the groove and outputs an operation stop signal.

The heat sealing means 4 has two heater bars 4a, 4a, and a cut-off cutter 4b between the heater bars 4a, 4a. Heater bars 4a, 4
a and the cut-off cutter 4b are the air cylinder device 4c.
The heater bars 4a, 4a are urged downward by springs 4d, 4d. The movable heater pedestals 5 and 7 have two heater receiving surfaces 5a and 7a corresponding to the two heater bars 4a and 4a, respectively. Movable heater cradle 5,
In FIG. 7, there are grooves 5b, 7b for stopping the webs U1, U2 by the band magnet 22, and a scale (not shown) is attached to the upper edges of the grooves 5b, 7b so that the web can be aligned in the width direction. ing. Webs U1 and U2 in groove 5b,
When stopping at 7b, the eye mark is placed on the heater receiving surfaces 5a, 7
Align it on top of a. Since the heater bar 4a has two strips instead of one strip, the cut edges of the webs U1 and U2 cut by the cut-off cutter 4b are heat-sealed and stopped by the strip magnet 22, and are carried in the direction of the top guide roll 2. Therefore, the strips of the webs U1 and U2 can be removed by removing the strip magnet 22 after the start of the packaging operation. Nijo heater bar 4
It is particularly preferable that a and 4a are impulse heaters molded with nichrome wire. Impulse heaters release heat quickly and move to movable heater pedestals 5 and 7 Web U1,
There is no risk of burns even if the heater bars 4a, 4a or the movable heater cradle 5, 7 are touched with a hand for a short time when U2 is stopped or the scraps of the webs U1, U2 are removed, which is preferable.

The used web edge cutters 6 and 8 are
Using the air cylinders 23A and 23B as drive sources, the web U1,
U2 is moved in close contact with the double-adhesion block 24A and 24B to the double-adhesion block 24C to move the web U between the double-adhesion blocks.
It is designed to cut 1, U2.

The movable heater pedestals 5 and 7, the two-row contact block 24C, and the air cylinders 23A and 23B are reciprocally moved by the rodless cylinder device 25.
It is fixed at 6. The web separating moving panel 9 is reciprocated by the rodless cylinder device 27.

Next, the operation of the embodiment having the above structure will be described.
An arbitrary original roll R1 is fitted and held in the roll holder 1A, and the web U1 is unwound, passed from the movable guide roll 3A on the packaging machine side to the top guide roll 2 substantially vertically, and guided to the packaging machine to perform packaging. Before the original roll R1 is finished, another original roll R2 is placed on the roll holder 1
The web U2 is fed out from the movable guide roll 3B on the side opposite the wrapping machine and passes over the heater receiving surface 7a of the movable heater cradle 7 on the side opposite the wrapping machine, and the web end is stripped or magnetized. Secure with adhesive tape. When the raw roll R1 is finished, the packaging operation is stopped. Then, the movable guide rolls 3A, 3B, the movable heater pedestals 5, 7, the used web edge cutting cutters 6, 8
Are switched and moved, and the heater receiving surface 7a of the movable heater receiving stand 7 on the side opposite to the packaging machine is positioned below the heater bar 4a. Next, the vertical panel 10 and the pusher 11 fix the web U1, and the web separating moving panel 9 enters the gap between the heater bar 4a and the heater receiving surface 7a from the side opposite to the packaging machine to add the webs U1, U2. The heater bars 4a descend and the webs U1 and U2 closely attached to the heater receiving surface 7a are heat-sealed to rise and return, and the vertical panel 1
0 and the pusher 11 release the fixation of the web U1, and the used web edge cutter 6 on the packaging machine side cuts the web U1. Then, when the packaging operation is restarted, the web U2
Is drawn by the web U1 and guided to the top guide roll 2 substantially vertically, and further guided to the packaging machine for packaging.

Similarly, before the original fabric roll R2 is finished, another original fabric roll R1 is fitted and held in the roll holder 1A, and the web U1 is fed out from the movable guide roll 3A on the packaging machine side to the packaging machine. After passing over the heater receiving surface 5a of the movable heater receiving table 5 on the side, the web end is fixed with a strip magnet or an adhesive tape. When the raw roll R2 is finished, the packaging operation is stopped. First, the vertical panel 10 and the pusher 11 fix the web U2, and the web separating moving panel 9 enters the gap between the heater bar 4a and the heater receiving surface 7a from the side opposite to the packaging machine to heat the web U1. It is folded so as to face the bar 4a, then the movable guide rolls 3A, 3B, the movable heater pedestals 5, 7, the used web edge cutter 6,
8 moves in the opposite direction to the above direction, and the heater receiving surface 5a of the movable heater receiving stand 5 on the packaging machine side is heated by the heater bar 4
The webs U1 and U2 face each other while facing the lower side of a. Subsequently, after the moving web moving panel 9 is returned and moved, the heater bar 4a is lowered and closely adheres to the heater receiving surface 5a, and the webs U1 and U2 are heat-sealed to return and rise, and the vertical panel 10 and the pusher 11 are also provided. Is the web U
The fixing of 2 is released, and the used web edge cutter 8 on the packaging machine side cuts the web U2. Then, when the packaging operation is restarted, the web U1 is pulled by the web U2, guided substantially vertically to the top guide roll 2, and further guided to the packaging machine to perform packaging.

[0015]

As described above, the heat-sealing type paper splicing device of the packaging machine of the present invention can satisfactorily and reliably perform heat-sealing with a high connection strength, and the web seam has a bag-making device and a product. There will be no accidental peeling when reaching a narrow gap with the drop-filling cylinder, greatly contributing to labor saving of the packaging machine.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a heat-sealing type paper splicing device of a packaging machine of an automatic packaging machine according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional side view showing the next step of FIG.

FIG. 3 is a vertical cross-sectional side view showing the next step of FIG.

FIG. 4 is a vertical cross-sectional side view showing the next step of FIG.

5 is a vertical cross-sectional side view showing the next step of FIG.

FIG. 6 is a vertical cross-sectional side view showing the next step of FIG.

FIG. 7 is a vertical cross-sectional side view showing the next step of FIG.

FIG. 8 is a vertical cross-sectional side view showing the next step of FIG.

9 is a vertical cross-sectional side view showing the next step of FIG.

[Explanation of symbols] U web R1, R2 original roll 1A roll holder on packaging machine side 1B roll holder on non-wrapping machine side 2 top guide roll 3A movable guide roll on packaging machine side 3B movable guide roll on non-wrapping machine side 4 Heat-sealing means 4a Heater bar 5 Movable heater pedestal on packaging machine side 5a Heater pedestal surface 6 Used web edge cutter on packaging machine side 7 Movable heater pedestal on anti-wrapping machine side 7 7a Heater receiving surface 8 Anti-wrapping machine side Used web edge cutter 9 Moving panel for web separation

Claims (1)

[Claims] 1. A pair of roll holders, into which a raw roll of a web, which is a paper to be wrapped, can be fitted and inserted from one end so that a pair of roll holders are provided on the lower side of the apparatus on the side of the packaging machine and the side of the non-wrapping machine. A top guide roll that is provided in parallel with the top guide roll and guides the web fed from the original fabric roll to the automatic packaging machine.The movable guide roll on the packaging machine side and the non-wrapping machine side are provided below the top guide roll. The movable guide roll is provided, and the web fed from the original roll supported by the roll holder on the packaging machine side can be guided substantially vertically from the movable guide roll on the packaging machine side to the top guide roll. , The web fed from the original roll supported by the roll holder on the non-wrapping machine side by switching the movement is moved from the movable guide roll on the anti-wrapping machine side to the top guide roll. The heat-sealing means that allows the heater bar to face downward is provided on the outer surface of the lower web of the top guide roll so that the web moves from the movable guide roll on the packaging machine to the top. A movable heater pedestal on the side of the packaging machine is provided which allows the heater receiving surface to be positioned at a position facing the heater bar when being guided substantially vertically to the guide rolls, and the web U is movable on the side opposite to the packaging machine. There is provided a movable heater pedestal on the side opposite to the wrapping machine that can position the heater receiving surface at a position facing the heater bar when the roll is guided substantially vertically from the roll to the top guide roll. A web that moves in the gap between it and the heater receiving surface from the side opposite the wrapping machine, and then returns by making the inner surfaces of the webs face each other. Heat-sealing paper splicing device of the packaging machine, characterized in that come Yodo panel is provided.