JP2017131525A - Handle adhesion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handle adhesion device which can reliably bond a cord for a handle between two wrappers and which brings about a beautifully finished state.SOLUTION: In a laminate, a cord B for a handle is superposed in a meandering state on an adhesive surface of a downside wrapper C', and an upside wrapper C is superposed thereof in such a manner that the adhesive surface is directed downward. Upper and lower belts 20 and 19 for pinching the laminate in cooperation with each other are provided. Opposed surfaces of the upper and lower belts 20 and 19 move at the same speed in the same direction along a longitudinal direction of the laminate.SELECTED DRAWING: Figure 15

Description

  The present invention relates to a handle bonding apparatus for bonding two strips and a handle string sandwiched in a meandering manner in a paper bag handle manufacturing apparatus or the like.

A general paper bag has a pair of handle strings attached to the upper end of the bag body. In order to prevent the bag body from being broken by the weight of an article contained in the paper bag, both ends of the curved string are attached to two sheets. In many cases, a grip portion sandwiched between reinforcing papers is attached to the bag body.
In order to manufacture such a grip portion, the string is continuously meandered, and the curved top portion is overlaid on the adhesive application surface of the first strip so that the curved top portion protrudes from both sides, and the first portion is interposed via the adhesive. Two belts are overlapped, and the first and second belts are sandwiched and joined, and the joined material is cut along the center line of the belts, and the cut left and right belts on both sides of the cords What cut | disconnects and obtains a handle part is known (refer patent document 1 and patent document 2).

In a conventional handle manufacturing apparatus, a laminated body in which a meandering string is continuously stacked on the adhesive surface of the first band, and a second band is stacked thereon is fed between a pair of upper and lower rolls. It was pasted with.
However, even if the laminate is sandwiched between the two rolls, the two rolls come in linear contact, so each part of the laminate is only temporarily pressurized, and it is difficult to bond securely. In addition, when the apparatus is stopped, a portion where the adhesive strength is insufficient without being pressurized is generated.
In addition, some of the conventional handle manufacturing apparatuses are provided with relief grooves for avoiding the portion of the string on the pressure roll. However, in such an apparatus, the band can be easily bonded to both sides of the string. There was a drawback that the string and the belt were not firmly bonded.

JP 2001-55250 A Japanese Patent Laid-Open No. 2005-287881

  The problem to be solved by the present invention is to provide a handle bonding apparatus that can securely bond a handle string between two strips and has a beautiful finished state.

  In the present invention, a handle string is laid in a meandering state on a bonding surface of a lower band paper, and an upper band paper is pressed and bonded to the laminated surface with the bonding surface facing downward. The grip bonding apparatus includes an upper belt and a lower belt that cooperate with each other to sandwich the laminated body, and the opposing surfaces of the upper belt and the lower belt have the same speed in the same direction along the longitudinal direction of the laminated body. Move with.

  The surface of the upper belt facing the laminated body moves along the lower surface of the guide plate, and the surface of the lower belt facing the laminated body moves along the upper surfaces of a plurality of mutually movable rollers, The movable roller can move up and down and is urged in a direction in contact with the guide plate.

According to the first aspect of the present invention, the laminate formed by sandwiching the string between the upper and lower strips is continuously pressed by the upper belt and the lower belt, and therefore, the two strips are formed over the entire length of the laminate. The string can be securely bonded, and even if the apparatus is temporarily stopped, a portion that is not bonded does not occur.
According to the invention of claim 2, since the upper belt moves along the guide plate, the surface pressed by the upper belt becomes flat, and as a result, the state of being attached to the bag is surely and beautifully finished. In addition, when the string passes, the movable roller moves backward while pressing the upper belt, so that the string passes smoothly, and moreover, the string and band paper compared to the roll formed with a clearance groove for the string. Can be firmly bonded.

It is a side view of the handle manufacturing apparatus which concerns on the Example of this invention. It is a perspective view in the use condition of the string drawer | drawing-out apparatus and the string hook part which concern on the Example of this invention. It is a perspective view of the string hanging part concerning the example of the present invention. It is a top view of the handle continuum concerning the example of the present invention. It is a principal part top view of the string hanging part which concerns on the Example of this invention. It is a front view of the string guidance | induction part which concerns on the Example of this invention. It is a principal part side view of the string guidance | induction part which concerns on the Example of this invention. It is a perspective view in the string feeding 1st stage of the string guide part for flat strings which concerns on the Example of this invention. It is a perspective view in the string feeding 2nd stage of the string guide part for flat strings which concerns on the Example of this invention. It is a perspective view in the string feeding 3rd stage of the string guide part for flat strings which concerns on the Example of this invention. It is a perspective view in the string feeding 4th step of the string guide part for flat strings which concerns on the Example of this invention. It is a perspective view in the string feeding 5th stage of the string guide part for flat strings which concerns on the Example of this invention. It is a perspective view of the string nozzle for round strings concerning the example of the present invention. It is a perspective view of a handle bonding apparatus showing an embodiment of the present invention. It is sectional drawing of the handle bonding apparatus which shows the Example of this invention. It is principal part sectional drawing at the time of round string passage of the handle bonding apparatus which shows the Example of this invention. It is a perspective view at the time of flat string conveyance of the handle bonding apparatus and the string hanging part showing the embodiment of the present invention. It is a perspective view at the time of round string conveyance of the handle bonding apparatus and the string hanging part showing an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a handle manufacturing apparatus A according to the present invention.
The handle manufacturing apparatus A is provided side by side with the bag making machine, and includes a string pulling apparatus a, a string hooking part b, a handle bonding apparatus c, a cutting part d, and a handle holding part e.
The string pull-out device a pulls out a handle string B wound in a roll shape and sends it to the string hooking portion b, and the string hooking portion b guides the string B to the handle bonding device c in a state of meandering continuously. The handle bonding apparatus c is joined by sandwiching a meandering string B between two strips C and C ′ conveyed along the longitudinal direction (see FIG. 4), and the cutting part d is connected to the strips C and C ′. Is cut along the center line L to form the handle continuum D. The handle continuum D is stocked in the handle holding unit e, and is conveyed from the handle holding unit e to the bag making machine by the handle conveying device in accordance with the production speed of the bag making machine. At the entrance of the bag making machine, the handle continuum D is cut to a predetermined length at positions W on both sides of the string B.

As shown in FIG. 2, the string drawing device a includes a pulling roll 1 and a driven roll 2 and is installed above the center of a string roll B ′ around which a handle string B is wound.
The drawer roll 1 is driven to rotate about a horizontal axis by a motor (not shown). The driven roll 2 is installed below the drawer roll 1 so as to be rotatable about a horizontal axis, and rotates as the drawer roll 1 rotates.
Then, the cord B extended from the inner peripheral side of the cord roll B ′ is wound around the outer periphery of the driven roll 2, and then the cord B is sandwiched between the pulling roll 1 and the driven roll 2, and further, After winding the string B, it extends toward the string hanging part b. When the drawer roll 1 is driven to rotate in this state, the string B is pulled out from the inside of the string roll B ′ and sent to the string hooking portion b.

As shown in FIGS. 2 and 3, the string hooking portion b has a plurality of guide portions that can lock the string B in a zigzag manner. Each guide portion includes a pair of guide rolls 3.
Conveying means 6 (FIG. 5) moving in the conveying direction of the strips C and C ′ in the handle bonding apparatus c are arranged on both sides of the string hooking portion b, and a plurality of arms are respectively inward from the conveying means 6 on both sides. 4 is growing. The arms 4 extending from both sides are arranged alternately (the arms 4 extending from the right side and the arms 4 extending from the left side are alternately arranged), and a sliding plate 5 is placed on each arm 4 in a direction intersecting the conveying direction of the strips C and C ′. It is slidably attached. In addition, a pair of guide rolls 3 are attached to the inner end portion (the free end side of the arm 4) of the upper surface of the sliding plate 5 so as to be rotatable about the vertical axis.

The arm 4, the sliding plate 5 and the guide roll 3 are transported by the transport means 6 in the same direction as the transport direction of the strips C and C ′. Further, the sliding plate 5 gradually slides outward as it moves downstream. Therefore, the guide roll 3 is located at the center in the width direction of the string hooking portion b when it is at the most upstream position of the string hooking portion b, and alternately moves in the opposite direction to the outer side in the width direction while moving away from the band C, C ′. It moves parallel to the transport direction.
Further, the string B pulled out by the string pulling device a is zigzag hooked on the outer side in the width direction of the outer peripheral surface of the guide roll 3 (the base end side of the arm 4) by the string guiding portion f.

For this reason, the string B hooked on the guide roll 3 gradually increases in width toward the downstream side in the transport direction of the string hooking part b, and is bent in a continuously meandering state. When the string hooking portion b reaches the handle bonding device c, the meandering string B is sandwiched between the upper and lower two strips C and C ′ so that the curved top protrudes on both sides of the strips C and C ′. It is. An adhesive is applied to the opposing surfaces of the two strips C and C ′.
After feeding the string B between the strips C and C ′, the arm 4, the sliding plate 5, and the guide roll 3 are returned to their original positions through the lower part of the handle bonding apparatus c by the conveying means.

Thus, when the drawer roll 1 is driven and the string B is pulled out from the string roll B ′, the length of the string B can be relaxed on the upstream side of the string hooking part b, and the string hooking part b becomes the left and right guide rolls 3. Even if the cord B is guided toward the handle bonding device c while increasing the distance between them, it is difficult to apply a strong tension to the cord B, and it is possible to prevent the cord from being cut.
The pulling speed of the string B by the string pulling device a (the rotational speed of the motor that drives the pulling roll 1) is automatically accelerated and decelerated in conjunction with the operation speed of the bag making machines arranged side by side. Moreover, it is also possible to adjust the pulling speed of the string B to 70 to 150% of the normal operation by inputting from the setting screen or the like. By reducing the speed, the string pulling device a and the string hooking part b can be adjusted. The slack of the string B can be eliminated. When a tension equal to or higher than a set value is applied to the string B in the string hooking portion b, the pulling speed of the string B may be automatically increased.

  As shown in FIGS. 5 to 12, the string guiding portion f for hooking the string B pulled out by the string pulling device “a” onto the guide roll 3 of the string hooking portion b includes a rack 7, a pinion gear 8, and a guide cylinder 9. , A string nozzle 10, a case 11, a horizontal rod 12, an L-shaped arm 13, a vertical rod 14, a connecting rod 15, and an eccentric cam 16.

The rack 7 is installed along the width direction at the entrance of the string hooking portion b, and the pinion gear 8 meshes with the rack 7. The guide cylinder 9 shares a central axis with the pinion gear 8 and rotates in conjunction with the pinion gear 8. The distal end of the guide tube 9 faces the entrance of the string hooking portion b, and the string nozzle 10 is detachably attached to the distal end portion.
The guide cylinder 9 and the pinion gear 8 are rotatably accommodated in a case 11, and one end of a horizontal rod 12 extending in the width direction of the string hooking portion b is pivotally attached to the case 11.
The L-shaped arm 13 swings around the corner, and the other end of the horizontal rod 12 is pivotally attached to one end thereof. The upper end of the vertical rod 14 is pivotally attached to the other end of the L-shaped arm 13, and one end of the connecting rod 15 is pivotally attached to the lower end of the vertical rod 14.
The connecting rod 15 is swingable about an axis that penetrates the center portion horizontally, and a cam follower 17 that engages with the eccentric cam 16 is attached to the other end of the connecting rod 15.

Therefore, when the eccentric cam 16 rotates, the cam follower 17 and the other end of the connecting rod 15 move up and down, and one end of the connecting rod 15 and the vertical rod 14 move up and down.
Then, the L-shaped arm 13 swings, and the horizontal rod 12 connected to one end of the L-shaped arm 13 moves horizontally along the axial direction.
As a result, the case 11, the guide cylinder 9 and the pinion gear 8 accommodated in the case 11, and the string nozzle 10 attached to the tip of the guide cylinder 9 move in the width direction of the string hooking portion b.
Since the pinion gear 8 meshes with the rack 7, the pinion gear 8 rotates as it moves, and the guide cylinder 9 and the string nozzle 10 also rotate in conjunction with the pinion gear 8.

As shown in FIGS. 8 to 12, if the string B to be guided is a flat string, a string nozzle 10 for a flat string is attached to the tip of the guide tube 9.
A pair of rollers 18 is erected at the tip of the string nozzle 10 for a flat string so as to be rotatable with a slight gap, and the string B that has passed through the guide tube 9 and the string nozzle 10 passes between the pair of rollers 18. The string B is passed through so that the width of the string B and the central axis of the roller 18 are parallel to each other.

When the string guiding portion f delivers the string B to the guide roller 3, as shown in FIG. 8, the case 11, the guide cylinder 9, the pinion gear 8, and the string nozzle 10 are positioned on one end side of the rack 7, and the guide cylinder 9 and the string B which passes the string nozzle 10 are standing in the width direction.
In this state, the string B is hooked from the base end side of the arm 4 to the outer peripheral surfaces of the pair of guide rolls 3 positioned on the most upstream side (FIG. 5).
When the eccentric cam 16 continues to rotate, as shown in FIG. 9, the case 11, the guide cylinder 9, the pinion gear 8, and the string nozzle 10 move toward the other end of the rack 7, while the guide cylinder 9, the pinion When the gear 8 and the string nozzle 10 are rotated, the string B is rotated by 45 °, and the case 11 reaches the center of the rack 7 as shown in FIG. 10, the string B is bent in the horizontal direction.
At the same time, the guide roller 3 around which the string B is wound moves to the outside in the width direction of the string hooking part b while being conveyed toward the handle bonding apparatus c.

Furthermore, as shown in FIG. 11, the case 11, the guide tube 9, the pinion gear 8, and the string nozzle 10 continue to move toward the other end of the rack 7, and the guide tube 9, the pinion gear 8, and the string nozzle 10 also rotate. The string B rotates 135 °, and when the case 11, the guide tube 9, the pinion gear 8, and the string nozzle 10 reach the other end of the rack 7, as shown in FIG. Rotate and stand again.
At this time, the string guiding portion f hooks the standing string B on the outer peripheral surface of the next pair of guide rolls 3 from the base end side of the arm 4.
Further, when the eccentric cam 16 rotates, the guide cylinder 9, the pinion gear 8 and the string nozzle 10 reversely rotate while the case 11, the guide cylinder 9, the pinion gear 8 and the string nozzle 10 return along the rack 7. . This is repeated, and the string B is hooked on each pair of guide rolls 3 while zigzag.

When the string B is a round string, the string nozzle 10 for a flat string is replaced with a string nozzle 10 ′ for a round string (FIG. 13). The string nozzle 10 ′ for the round string is cylindrical and does not include the roller 18.
The string B that passes through the string nozzle 10 'does not rotate, but is guided smoothly and is hooked on the guide roll 3 in a zigzag manner. Sometimes a beautiful finish.

As shown in FIGS. 14 and 15, the handle bonding apparatus c into which the string B is fed by the string hooking portion b includes a lower belt 19 and an upper belt 20.
The lower belt 19 is wound and circulated around the lower drive roller 21 and the plurality of lower guide rollers 22, and the upper belt 20 is wound and circulated around the upper drive roller 23 and the plurality of upper guide rollers 24. The lower belt 19 and the upper belt 20 are opposed to each other with the string B conveyance path 25 by the string hooking portion b interposed therebetween.
When the lower drive roller 21 and the upper drive roller 23 rotate in the opposite directions, and the lower drive roller 21 and the upper drive roller 23 are driven, the opposing surfaces of the lower belt 19 and the upper belt 20 are in the same direction as the string B conveying direction. , Move at the same speed.

The surface of the upper belt 20 facing the conveyance path 25 moves along the lower surface of the guide plate 26.
Further, the surface of the lower belt 19 that faces the conveyance path 25 moves along the upper surfaces of a large number of closely movable rollers 27. These movable rollers 27 can move up and down and are biased upward (in a direction in contact with the guide plate 26).
Therefore, the surface of the lower belt 19 that faces the conveyance path 25 is pressed by the movable roller 27 and is pressed against the surface of the upper belt 20 that faces the conveyance path 25.

As shown in FIG. 17, the upper band paper C is fed from above to the lower surface of the surface of the upper belt 20 that faces the conveyance path 25. An adhesive is applied to the lower surface of the band C in advance.
On the other hand, on the upper surface of the surface of the lower belt 19 that faces the conveyance path 25, the lower band paper C ′ is fed from below. An adhesive is applied to the upper surface of the belt C ′.
The cord B hooked on the cord hooking portion b meanders and is sent to the handle bonding device c, and is sandwiched between the strips C and C ′, and is a laminated body in which the strips C and C ′ are overlapped with the strap B therebetween. Enters the conveying path 25 between the lower belt 19 and the upper belt 20.

When the string B is a flat string, the string B is wound while standing on each pair of guide rolls 3 of the string hooking part b, is conveyed in a twisted state on both sides, and is transferred to the handle bonding apparatus c. Then, a laminated body formed by superimposing the cord B and the strips C and C ′ is continuously sandwiched between the upper belt 20 and the lower belt 19 and the strips C and C ′ are bonded uniformly over the entire length. The string B is bonded to the strips C and C ′ to form a continuous handle D. Further, when the string B passes between the upper belt 20 and the lower belt 19, the twisted portion is crushed to form a crease, thereby forming a beautiful U-shape.
As shown in FIG. 18, when the string B is a round string, it is similarly attached to the strips C and C ′. Note that the movable roller 27 in the portion through which the cord B passes is lowered so that the cord B passes without difficulty (FIG. 16), and immediately returns to the original position. Glued firmly.
The handle continuum D that has passed through the handle bonding apparatus c is conveyed to the cutting part d.

A handle manufacturing apparatus B string B 'string roll C, C' band D handle continuous body a string pulling apparatus b string hanging section c handle bonding apparatus d cutting section e handle holding section f string guiding section 1 drawer roll 2 driven roll 3 guide Roll 4 Arm 5 Sliding plate 6 Conveying means 7 Rack 8 Pinion gear 9 Guide cylinder 10, 10 'String nozzle 11 Case 12 Horizontal rod 13 L-shaped arm 14 Vertical rod 15 Connecting rod 16 Eccentric cam 17 Cam follower 18 Roller 19 Lower belt 20 upper belt 21 lower drive roller 22 lower guide roller 23 upper drive roller 24 upper guide roller 25 transport path 26 guide plate 27 movable roller

In the present invention, a handle string is laid in a meandering state on a bonding surface of a lower band paper, and an upper band paper is pressed and bonded to the laminated surface with the bonding surface facing downward. The grip bonding apparatus includes an upper belt and a lower belt that cooperate with each other to sandwich the laminated body, and the opposing surfaces of the upper belt and the lower belt have the same speed in the same direction along the longitudinal direction of the laminated body. The surface of the upper belt facing the laminate is moved along the lower surface of the guide plate, and the surface of the lower belt facing the laminate is along the upper surfaces of a number of movable rollers in close contact with each other. The movable roller is movable up and down and is biased in a direction in contact with the guide plate .

According to the present invention, the laminated body in which the string is sandwiched between the upper and lower strips is continuously pressed by the upper belt and the lower belt, so that the two strips and the string can be securely attached over the entire length of the laminate. Even if the apparatus can be temporarily stopped, an unbonded portion does not occur.
Further , since the upper belt moves along the guide plate, the surface pressed by the upper belt becomes flat, and as a result, the state of being attached to the bag is surely and beautifully finished. In addition, when the string passes, the movable roller moves backward while pressing the upper belt, so that the string passes smoothly, and moreover, the string and band paper compared to the roll formed with a clearance groove for the string. Can be firmly bonded.

Claims (2)

  A handle bonding device for laminating a grip string on a lower band paper bonding surface in a meandering state, and pressurizing and bonding a laminate formed by stacking the upper band paper with the bonding surface facing downward. And an upper belt and a lower belt that sandwich the laminated body in cooperation with each other, and the opposing surfaces of the upper belt and the lower belt move at the same speed in the same direction along the longitudinal direction of the laminated body. A grip bonding apparatus characterized by:   The surface of the upper belt facing the laminated body moves along the lower surface of the guide plate, and the surface of the lower belt facing the laminated body moves along the upper surfaces of a plurality of mutually movable rollers, The handle bonding apparatus according to claim 1, wherein the movable roller is movable up and down and is urged in a direction in contact with the guide plate.

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