JP2017170697A - Handle sticking part of bag making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handle sticking part of a bag making machine which can stick a handle formed by sticking both end parts of a U-shaped cord to reinforcement paper to a sheet for a bag firmly and beautifully.SOLUTION: A handle sticking part of a bag making machine includes: a large cylinder 2 which transports a sheet for a bag in which reinforcement paper for a handle is overlapped with a mouth part through an adhesive by loading on an outer peripheral surface; a sticking cylinder 3 which is in parallel to the large cylinder 2, rotates reversely, and is pressure-welded to the outer peripheral surface of the large cylinder 2 by sandwiching the sheet for a bag and the handle; and an auxiliary press roll 16. In an outer peripheral surface of the sticking cylinder 3, relief grooves 15 are respectively formed in positions corresponding to both end parts of a cord, and the auxiliary press rolls 16 are provided in positions which are adjacent to a downstream side of the sticking cylinder 3 and correspond to the relief groove 15 respectively.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a handle sticking portion of a bag making machine for manufacturing a paper bag.

In general, a bag making machine that manufactures a square bottom paper bag has a paper feeding unit that supplies bag paper continuously or one by one, a handle supply unit that supplies a handle, and a handle that is attached to the bag paper. A handle pasting portion, a trunk pasting portion that folds bag paper into a cylindrical shape, and a bag bottom forming portion that forms a square bottom (see Patent Document 1 and Patent Document 2).
The handle is formed by sticking both ends of a U-shaped string to a reinforcing paper. At the handle attaching portion, the handle reinforcing paper is placed on the outer peripheral surface of the roller and conveyed on the bag paper via an adhesive. The handle is affixed to the bag paper by passing between the stacking roller and the pressing roller.

JP2013-169755A JP-A-11-198254

However, since the conventional bag making machine presses the bag paper and the handle with a pressing roller having a flat outer peripheral surface, the bag cannot be pressed sufficiently in a portion close to a thick string. It floats from the paper and not only looks bad, but the adhesive strength decreases, and if a heavy article is carried in a bag and carried around, there is a risk that the handle may be removed.
The problem to be solved by the present invention is that a handle sticking portion of a bag making machine can firmly and beautifully stick a handle formed by sticking both ends of a U-shaped string to a reinforcing paper to a bag sheet. Is to provide.

  The present invention relates to a handle sticking portion of a bag making machine for sticking a handle formed by sticking both ends of a U-shaped string to a reinforcing paper to a mouth portion of a bag sheet, and reinforcing the handle via an adhesive. A transfer device that carries the bag sheet with paper stacked on the mouth; and a bonding cylinder and an auxiliary press roll that are pressed against the transfer device across the bag sheet and a handle; In the outer peripheral surface, escape grooves are formed at positions corresponding to both ends of the string, and the auxiliary press roll is adjacent to the downstream side in the transport direction of the sticking cylinder and is at a position corresponding to the escape groove. Each is installed.

The conveying device may be composed of a large cylinder that conveys the bag sheet on an outer peripheral surface, and the affixing cylinder and auxiliary press rolls may be installed on both sides in the axial direction of the large cylinder.
A handle for receiving the handle continuum from a handle conveying path for conveying a handle continuum in which both ends of a large number of strings are attached to a belt-like reinforcing paper on the upstream side in the conveying direction of the pressure contact portion between the conveying device and the sticking cylinder. An insertion portion is provided, and in the handle insertion portion, a cut positioning roller that conveys the handle continuum, a motor-driven rotary cutter that cuts the handle continuum on both sides of the string, and the cut handle A perforated endless belt that sucks and transports it to a predetermined position, and a gripping device that grips the grip adsorbed by the stopped perforated endless belt and transfers it to the upper surface of the mouth of the bag sheet. .
In this case, the cut positioning roller, the rotary cutter, and the perforated endless belt may be rotationally driven by separate motors that are independently controlled.
In addition, a photoelectric sensor that detects the position of the string of the handle continuous body is installed facing the cut positioning roller, and a motor that drives the rotary cutter and a motor that drives the perforated endless belt based on the detection signal of the sensor. It is desirable to send to.

  According to the present invention, by the sticking cylinder and the conveying device, avoiding a thick string portion, and sandwiching the reinforcing sheet of the bag sheet and the reinforcing paper flatly and sticking the reinforcing paper to the bag sheet, Since the string part is pressed by the auxiliary press roll, the reinforcing paper for the handle is firmly attached to the bag sheet over the entire surface, so that not only the appearance is good but also heavy articles are stored in the bag. However, the handle is difficult to peel off.

It is a side view of the bag making machine concerning the example of the present invention. It is a principal part perspective view of the bag making machine which concerns on the Example of this invention. It is a principal part schematic of the bag making machine which concerns on the Example of this invention. It is a perspective view of a large cylinder, a sheet feeding cylinder, and a sheet feeding cylinder according to an embodiment of the present invention. FIG. 6 is a cross-sectional view of the sheet feeding cylinder and the sheet carry-in path according to the embodiment of the present invention when the grip claws are lying down. FIG. 5 is a cross-sectional view of the sheet feeding cylinder and the sheet carry-in path according to the embodiment of the present invention when the grip claws are raised. FIG. 5 is a cross-sectional view of the sheet feeding cylinder and the sheet carrying-out path according to the embodiment of the present invention when the grip claws are lying down. It is sectional drawing at the time of the nail | claw standup of the sheet | seat delivery cylinder and sheet | seat delivery path which concern on the Example of this invention. It is a perspective view of the handle sticking part which shows the Example of this invention. It is a top view of the handle insertion part which concerns on the Example of this invention. It is a principal part side view of the handle sticking part which shows the Example of this invention. It is a principal part top view of the handle sticking part which shows the Example of this invention. It is a top view of the handle which concerns on the Example of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a bag making machine 1 according to the present invention.
The bag making machine 1 is an apparatus that manufactures a square bottom paper bag, and is provided in parallel with a handle manufacturing apparatus, and in order from the upstream side, a sheet feeding unit a, a handle pasting unit b, a trunk pasting unit c, and a feeder. A part d, a square bottom molding part e, and a delivery part f are provided.
The sheet feeding unit a supplies the sheet A for bags (FIG. 2) cut in advance to a predetermined size one by one with the mouth portion rearward in the transport direction. The handle attaching part b attaches the handle B to the bag sheet A fed from the sheet feeding part a to form a sheet A1 with a handle (FIG. 2). The trunk pasting part c bonds the sheet A1 with a handle in a cylindrical shape, and the feeder part d aligns the cylindrical sheet A1 with a handle and feeds it to the square bottom forming part e. In the square bottom forming part e, the square bottom is folded and bonded to complete the square bottom paper bag, and the delivery part f counts the number of completed square bottom paper bags and stacks them in the same posture.

As shown in FIG. 2, the handle sticking portion b includes a large cylinder 2 for folding and a pair of left and right sticking cylinders 3 that are parallel to each other. The pair of pasting cylinders 3 are arranged in the axial direction on both upper sides of the large cylinder 2, and the outer circumferential surface of the pasting cylinder 3 is pressed against the outer circumferential surface of the large cylinder 2, which is a transport device that transports the bag sheet A. Has been.
The large cylinder 2 is installed above the end of the sheet carry-in path 4 for carrying the bag sheet A from the paper feed section a to the handle pasting section b, and below the large cylinder 2 on the downstream side of the sheet carry-in path 4. A sheet carry-out path 5 for carrying the sheet A1 with a handle toward the body pasting forming part c is disposed.
The sheet carry-in path 4 is intermittently driven by a servo motor, and an abnormal sheet detection sensor 18 that detects an abnormality in the posture or shape of the bag sheet A is installed facing the upper side of the sheet carry-in path 4.

As shown in FIG. 3, between the large cylinder 2 and the end portion of the sheet carry-in path 4, the bag sheet A on the sheet carry-in path 4 is on the outer peripheral surface of the large cylinder 2, and the mouth is on the rear side in the rotation direction. A sheet feeding cylinder 6 is provided for feeding inward.
A sheet delivery cylinder 7 is provided between the large cylinder 2 and the leading end of the sheet carry-out path 5 to feed the sheet A1 with a handle that has passed between the large cylinder 2 and the pasting cylinder 3 onto the sheet carry-out path 5. It is done.
The large cylinder 2, the sheet feeding cylinder 6 and the sheet feeding cylinder 7 are parallel to each other and reversely rotated.

As shown in FIGS. 3 and 4, gripping claws 8 are installed on the outer peripheral surfaces of the large cylinder 2, the sheet feeding cylinder 6 and the sheet feeding cylinder 7 so that they can be raised and lowered. The sheet A or the sheet with handle A1 is gripped, and when the gripping claws 8 are raised and opened, the bag sheet A or the sheet with handle A1 is released.
The large cylinder 2 is provided with gripping claws 8 at three positions in the circumferential direction at equal intervals. The sheet feeding cylinder 6 and the sheet feeding cylinder 7 are each provided with a gripping claw 8 at one circumferential position.
Further, both end surfaces of the large cylinder 2, the sheet feeding cylinder 6 and the sheet feeding cylinder 7 are fixed without following the rotation of the outer peripheral surface.

As shown in FIGS. 4 to 8, the outer peripheral portion of each cylinder (the large cylinder 2, the sheet feeding cylinder 6 and the sheet feeding cylinder 7) is rotatable along the axial direction and around the central axis. A support bar 8a is provided, and a plurality of gripping claws 8 are attached to the support bar 8a at appropriate intervals. The support bar 8a is biased in the direction in which the gripping claws 8 are tilted and closed.
Moreover, the arm 9 which protrudes toward the radial inside of each cylinder is provided in the both ends of the support bar 8a, and the bearing 9a is attached to the tip of the arm 9.

A first cam 22 and a second cam 23 for guiding one bearing 9a are provided on one end surface of each cylinder. When each cylinder rotates and the bearing 9a comes into contact with the first cam 22 and the second cam 23, the bearing 9a is gradually pushed in the outer circumferential direction, and the gripping claws 8 are gradually raised and opened, and the first cam 22 and the second cam When the end of the cam 23 is passed, the bearing 9a returns to the center by the urging force, and the gripping claw 8 falls down and closes.
In a normal state, when the gripping claw 8 reaches a position for gripping the bag sheet A or the grip-attached sheet A1, the gripping claw 8 falls down and closes, and the bag sheet A or the grip-attached sheet A1 is gripped by the cylinder outer peripheral surface. 8 to be conveyed.

  An arc-shaped pressing member 10 is installed on the other end surfaces of the sheet feeding cylinder 6 and the sheet feeding cylinder 7 so as to be movable in the radial direction. The pressing member 10 is provided at a position where the bearing 9a comes into contact with the outer periphery when the gripping claw 8 is closed to reach a position for gripping the bag sheet A or the sheet A1 with handle. An air cylinder 11 is connected to the pressing member 10, and the pressing member 10 can be moved in the radial direction by moving the air cylinder 11 back and forth.

As shown in FIGS. 6 and 8, normally, the air cylinder 11 is extended, and the pressing member 10 approaches the centers of the sheet feeding cylinder 6 and the sheet feeding cylinder 7. In this state, when the gripping claw 8 reaches a position for gripping the bag sheet A or the sheet A1 with a handle, the gripping claw 8 falls down and closes, and the bag sheet A is fed into the large cylinder 2 or the sheet A1 with a handle. From the large cylinder 2 downstream.
On the other hand, as shown in FIGS. 5 and 7, when the air cylinder 11 is retracted, the pressing member 10 approaches the outer peripheral surfaces of the sheet feeding cylinder 6 and the sheet feeding cylinder 7, and as a result, the bearing 9a is pushed and supported. The rod 8a rotates and the gripping claw 8 stands up and opens.

As shown in FIG. 9, on both axial sides above the large cylinder 2, there is a handle insertion portion for receiving a handle continuum C manufactured by the handle manufacturing apparatus in front of the installation position of the pasting cylinder 3 in the rotation direction. Provided. The handle insertion portions are on both the left and right sides, but only one side is displayed in the drawing.
In the handle conveyance path that connects the handle manufacturing apparatus and the handle insertion portion, the handle continuum C is conveyed with the top of the string D facing up.
In the handle insertion portion, a cut positioning roller 12 and a perforated endless belt 13 that respectively convey the handle continuum C and the handle B are sequentially installed in the handle conveyance path. Further, a rotary cutter 14 is provided between the cut positioning roller 12 and the perforated endless belt 13 to cut the handle continuous body C to a predetermined length on both sides of the U-shaped string D.

The cut positioning roller 12, the perforated endless belt 13, and the rotary cutter 14 are rotationally driven by separate servo motors that are independently controlled.
As shown in FIG. 10, an abnormal handle detection sensor including a metal detector 19 is installed just before the cut positioning roller 12 facing the handle conveyance path. In the handle manufacturing apparatus, when the handle continuum C is cut, the handle continuum C is connected with an adhesive tape containing a special metal. The metal detector 19 detects an abnormal handle in response to the special metal, and sends a detection signal to a servo motor that drives the perforated endless belt 13.

Further, on the upstream side of the rotary cutter 14, a photoelectric sensor 20 that faces the cut positioning roller 12 and detects the position of the string D of the handle continuous body C conveyed by the cut positioning roller 12 is installed. The detection signal of the photoelectric sensor 20 is sent to a servo motor that drives the rotary cutter 14, and the rotary cutter 14 reliably cuts the handle continuum C on both sides of the string D based on the signal from the photoelectric sensor 20. A handle B having a predetermined length is formed by sticking both ends of the U-shaped string D to the reinforcing paper E (FIG. 13).
The photoelectric sensor 20 also functions as an abnormal grip detection sensor, and detects when there is no string D or when there is an abnormality in the pitch of the string D and detects it to the servo motor that drives the perforated endless belt 13. Send a signal.

The inside of the perforated endless belt 13 is connected to a vacuum vacuum device. When the vacuum vacuum device is operated, the perforated endless belt 13 adsorbs the handle B, and when the operation is stopped, the perforated endless belt 13 releases the handle B. It is like that.
Further, the perforated endless belt 13 stops intermittently, and the sucked handle B is brought to a predetermined position and stopped. The perforated endless belt 13 stops at a predetermined position when there is no abnormality in the string D based on the detection signal from the photoelectric sensor 20, and the handle B adsorbed to the perforated endless belt 13 is preset. Positioned at the correct position.

When the rotation of the perforated endless belt 13 is stopped, the gripping device (not shown) grips the positioned handle B adsorbed by the perforated endless belt 13 and the mouth of the bag sheet A fed into the outer peripheral surface of the large cylinder 2. Transfer to the top of the unit and stack. In addition, an adhesive is applied to the reinforcing paper E of the handle B before being stacked on the upper surface of the bag sheet A.
Thus, since the handle B is positioned by detecting the string D with the photoelectric sensor 20, compared to the conventional one in which the hole is formed in the reinforcing paper E of the handle B and the pin is inserted into the hole, the positioning is performed. The handle B is unlikely to be peeled off from the bag sheet A, and chips formed by making holes do not hinder bag formation.
In addition, the insertion port of the handle discharge path 17 is arrange | positioned in the rotation direction downstream rather than the stop position of the perforated endless belt 13 (FIG. 2).

As described above, the belt-like handle continuous body C is automatically cut at a precise position while passing through the cut positioning roller 12 and the perforated endless belt 13 to become a handle B, and the handle B is automatically a bag sheet. A is overlaid at the appropriate position.
Further, since the cut positioning roller 12, the rotary cutter 14 and the perforated endless belt 13 are driven by independent servo motors, they can be easily controlled individually, and the metal detector 19 and the photoelectric sensor 20 are combined. This facilitates accurate alignment and defective product discrimination.

The bag sheet A on which the handle B is stacked is transported by the large cylinder 2 with the mouth portion facing rearward in the rotation direction, and passes between the pasting cylinder 3.
As shown in FIGS. 11 and 12, escape grooves 15 are formed at positions corresponding to both ends of the string D of the handle B on both axial sides of the outer peripheral surface of the sticking cylinder 3, respectively. A pair of auxiliary press rolls 16 corresponding to the positions of the escape grooves 15 are installed adjacent to the downstream side of the guide grooves.
The pair of left and right pasting cylinders 3 may be one continuous cylinder.

When the bag sheet A and the handle B stacked via the adhesive pass through the handle attaching part b, the attaching cylinder 3 first presses the reinforcing paper E and the bag sheet A flat except for the portion of the string D. Then, since the auxiliary press roll 16 presses the portion of the string D, the reinforcing paper E is stuck to the bag sheet A without being lifted to form the handle-attached sheet A1.
Further, as shown in FIG. 9, a sheet abnormality detection sensor 21 with a handle is installed on the downstream side of the pasting cylinder 3 facing the outer peripheral surface of the large cylinder 2. The sheet abnormality detection sensor with handle 21 detects an abnormality in the posture and shape of the sheet A1 with handle, and sends a detection signal to the air cylinder 11 that controls the opening and closing of the gripping claw 8 of the sheet delivery cylinder 7 in an emergency.

The bag making machine 1 manufactures a paper bag as follows.
The bag sheets A supplied from the sheet feeding unit a are conveyed one by one through the sheet carry-in path 4 to the handle pasting unit b.
When the bag sheet A reaches the end of the sheet carry-in path 4, the gripping claws 8 of the sheet feed cylinder 6 are closed to grip the bag sheet A on the sheet carry-in path 4. Sheet A is conveyed toward the large cylinder 2. When the bag sheet A reaches the outer peripheral surface of the large cylinder 2, the gripping claws 8 of the large cylinder 2 are closed and the gripping claws 8 of the sheet feeding cylinder 6 are opened. The large cylinder 2 carries the bag sheet A on the outer peripheral surface and conveys it toward the handle insertion portion.

At the same time, the handle continuum C manufactured by the handle manufacturing apparatus is transported to the handle insertion portion through the handle transport path. The handle continuous body C is cut by a rotary cutter 14 to form a handle B, and the handle B is aligned by a perforated endless belt 13 so that an adhesive is applied to the bag sheet A on the outer peripheral surface of the large cylinder 2. Overlaid.
The bag sheet A with the handle B superimposed on the mouth portion sequentially passes between the sticking cylinder 3 and the auxiliary press roll 16, and the handle B is firmly attached to the bag sheet A. Thus, a sheet A1 with a handle is formed.

When the sheet A1 with a handle reaches the sheet feed cylinder 7, the gripping claws 8 of the sheet feed cylinder 7 are closed to grip the sheet A1 with a handle, and the gripping claws 8 of the large cylinder 2 are opened to release the sheet A1 with a handle. The sheet delivery cylinder 7 conveys the sheet A1 with handle toward the sheet delivery path 5.
When the sheet A1 with a handle reaches the sheet carry-out path 5, the gripping claws 8 of the sheet delivery cylinder 7 are opened to release the sheet A1 with a handle.
The sheet A1 with a handle placed on the sheet carry-out path 5 is sent to the trunk pasting part c.

When the abnormal sheet detection sensor 18 detects a shape abnormality or posture abnormality of the bag sheet A on the sheet carry-in path 4, the detection signal is sent to the air cylinder 11 that controls the opening and closing of the gripping claws 8 of the sheet feeding cylinder 6 in an emergency. Sent. Then, when the abnormal bag sheet A reaches the end of the sheet carry-in path 4, the gripping claws 8 of the sheet feeding cylinder 6 function as sheet discharging means.
That is, when the detection signal of the abnormal sheet detection sensor 18 is received, the air cylinder 11 is retracted and the pressing member 10 is moved, and the gripping claws 8 of the sheet feeding cylinder 6 remain open without being closed. The sheet A falls from the end of the sheet carry-in path 4 and is discharged.
When the abnormal sheet detection sensor 18 detects an abnormality of the bag sheet A, the supply of the bag sheet A from the paper feeding unit a may be stopped.

The detection signal of the abnormal sheet detection sensor is also sent to a servo motor that controls the rotation of the perforated endless belt 13, and the perforated endless belt 13 functions as a handle discharging means. That is, when the detection signal of the abnormal sheet detection sensor is received, the perforated endless belt 13 does not stop, and the handle B to be attached to the bag sheet A having a poor posture is input to the input port of the handle discharge path 17. .
Further, when the photoelectric sensor 20 installed facing the perforated endless belt 13 does not detect the string D, or detects an abnormal pitch of the string D, or a metal detector installed immediately before the cut positioning roller 12. Even when 19 detects a special metal, the perforated endless belt 13 does not stop, and the handle B is discharged from the handle discharge path 17 as being defective.

In this case, the handle B is not affixed to the bag sheet A, resulting in an abnormal handle-attached sheet A1. Further, the bag sheet A may be displaced obliquely on the outer peripheral surface of the large cylinder 2.
Then, the sheet abnormality detection sensor with handle 21 detects an abnormality of the sheet A1 with handle, and a detection signal is sent to the air cylinder 11 that controls the opening and closing of the gripping claws 8 of the sheet delivery cylinder 7. Then, when the abnormal sheet A1 with a handle reaches the sheet delivery cylinder 7, the gripping claws 8 of the sheet delivery cylinder 7 function as defective product discharge means.
That is, the air cylinder 11 is retracted in response to a detection signal from the sheet abnormality detection sensor 21 with a handle, and the gripping claws 8 of the sheet delivery cylinder 7 are left open without being closed. It falls without being carried to the carry-out path 5.
The above is an explanation of an embodiment that is a single-wafer type bag making machine, but the handle pasting portion of the present invention can also be applied to a rotary type bag making machine.

A Sheet for bag A1 Sheet with handle B Handle C Handle continuum D String E Reinforcement paper a Feeding part b Handle sticking part c Body sticking molding part d Feeder part e Square bottom molding part f Delivery part 1 Bag making machine 2 Large cylinder DESCRIPTION OF SYMBOLS 3 Pasting cylinder 4 Sheet carrying-in path 5 Sheet carrying-out path 6 Sheet feeding cylinder 7 Sheet feeding cylinder 8 Grasp claw 8a Support rod 9 Arm 9a Bearing 10 Press member 11 Air cylinder 12 Cut positioning roller 13 Perforated endless belt 14 Rotating cutter 15 Escape Groove 16 Auxiliary press roll 17 Handle discharge path 18 Abnormal sheet detection sensor 19 Metal detector 20 Photoelectric sensor 21 Sheet abnormality detection sensor with handle 22 First cam 23 Second cam

The present invention relates to a handle sticking portion of a bag making machine for sticking a handle formed by sticking both ends of a U-shaped string to a reinforcing paper to a mouth portion of a bag sheet, and reinforcing the handle via an adhesive. A transfer device that carries the bag sheet with paper stacked on the mouth; and a bonding cylinder and an auxiliary press roll that are pressed against the transfer device across the bag sheet and a handle; In the outer peripheral surface, escape grooves are formed at positions corresponding to both ends of the string, and the auxiliary press roll is adjacent to the downstream side in the transport direction of the sticking cylinder and is at a position corresponding to the escape groove. The grip continuous from the grip transport path that transports a continuous grip body formed by sticking both ends of a large number of strings to a belt-shaped reinforcing paper on the upstream side in the transport direction of the press contact portion between the transport device and the sticking cylinder. Receiving body A grip insertion portion, a cut positioning roller that conveys the handle continuum, a motor driven rotary cutter that cuts the handle continuum on both sides of the string, and the cut A perforated endless belt that sucks and holds the handle to a predetermined position and a gripping device that grips the grip adsorbed by the stopped perforated endless belt and transfers it to the upper surface of the mouth of the bag sheet .

The conveying device may be composed of a large cylinder that conveys the bag sheet on an outer peripheral surface, and the affixing cylinder and auxiliary press rolls may be installed on both sides in the axial direction of the large cylinder.
Before SL cut positioning rollers, rotating cutter and the perforated endless belt may be rotated by separate motors which are controlled independently of each other.
In addition, a photoelectric sensor that detects the position of the string of the handle continuous body is installed facing the cut positioning roller, and a motor that drives the rotary cutter and a motor that drives the perforated endless belt based on the detection signal of the sensor. It is desirable to send to.

Claims (5)

  A grip sticking portion of a bag making machine for sticking a handle formed by sticking both ends of a U-shaped string to a reinforcing paper to a mouth portion of a bag sheet, wherein the reinforcing paper for the handle is attached via an adhesive. An outer periphery of the adhering cylinder, comprising: a conveying device that conveys the bag sheet stacked on the mouth portion; an adhering cylinder and an auxiliary press roll that are pressed against the conveying device with the bag sheet and the handle interposed therebetween; In the surface, escape grooves are formed at positions corresponding to both ends of the string, and the auxiliary press rolls are installed at positions corresponding to the escape grooves adjacent to the downstream side in the transport direction of the sticking cylinder. A handle pasting part of a bag making machine.   The conveying device is composed of a large cylinder that conveys the bag sheet on an outer peripheral surface, and the affixing cylinder and auxiliary press rolls are installed on both sides in the axial direction of the large cylinder. The handle sticking part of the bag making machine described in Claim 1.   A handle for receiving the handle continuum from a handle conveying path for conveying a handle continuum in which both ends of a large number of strings are attached to a belt-like reinforcing paper on the upstream side in the conveying direction of the pressure contact portion between the conveying device and the sticking cylinder. An insertion portion is provided, and in the handle insertion portion, a cut positioning roller that conveys the handle continuum, a motor-driven rotary cutter that cuts the handle continuum on both sides of the string, and the cut handle A perforated endless belt that sucks and stops at a predetermined position, and a gripping device that grips the grip adsorbed by the stopped perforated endless belt and transfers it to the upper surface of the mouth of the bag sheet. The handle sticking part of the bag making machine according to claim 1 or 2, characterized in that   The handle pasting portion of the bag making machine according to claim 3, wherein the cut positioning roller, the rotary cutter, and the perforated endless belt are rotationally driven by separate motors that are independently controlled.   Facing the cut positioning roller, a photoelectric sensor for detecting the position of the string of the handle continuous body is installed, and a detection signal of the sensor is sent to a motor for driving the rotary cutter and a motor for driving the perforated endless belt. The handle pasting part of the bag making machine according to claim 4, wherein

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