JPH069885B2 - Insufflation device for both bottom bags - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a base paper for manufacturing a double-sided bag (double-sided paper bag, double-sided sewing paper bag) having a blow-in opening in a body sticking part, and a folding opening for the blow-in opening. The present invention relates to a device for sticking pieces.

"Prior art" Conventionally, the blower opening of the double-bottomed bag is used for folding and adhering the base paper for the blower opening into a flat tube and then adhering it to the base paper for bag manufacturing (Japanese Patent Publication No. 60-10942). Feeding blowout base paper, applying blowout tube forming adhesive and cutting to the same cylinder forming length, and the cut same cylinder forming length base paper is applied twice. Blow-out tube forming line that forms a flat tube with adhesive, a blow-in tube supply line that holds the flat tube and supplies it to the base paper for bag making, and a bag length perforation or cut mark and a flat tube attachment position in advance. A line for moving the bag-making base paper coated with an adhesive is provided, and all these lines are driven by the mechanical interlocking mechanism (chain, gears, etc.) of the driving force of the main body of the cylinder making machine (tube). In addition, a means for matching the blow port cylinder supply speed with the moving line speed of the base paper and the cylinder supply Since the adhesive coating of the feed line, the cutting means, and the tube forming 2 diffractive tatami position and the adhering position of the blow port tube forming line were performed by the mechanical interlocking mechanism by gears, There is a large error in the tube folding width and the sticking position, and especially since the speed of the moving line becomes remarkable at 50 bags per minute or more, it is difficult to improve the accuracy of the width of the blowing port and the sticking position as well as the manufacturing speed. Moreover, changing the bag length and the width of the blow mouth requires exchanging gears, and the work is complicated and takes a long time.
Further, several kinds of gears have to be easily stored and stored, and it is difficult to simplify the device.

[Problems to be Solved by the Invention] The present invention has an object to improve the speed of the base paper line for producing both bottom bags and to accurately adhere the blow-in to the cylinder sticking position with accuracy.

"Means for Solving Problems" The present invention comprises a moving line of bag-making base paper having perforations or cut marks for each bag length, a blow-open base-paper feed line, and a blow-open supply line. The moving line is a means for reading the speed and moving amount of the moving line consisting of a line sensor and a perforation or cut mark sensor, and the feeding line is the blowing amount of the moving amount of the moving line. The means for outputting the ratio of sheet piece length / bag length by a signal from the line sensor and the means for cutting the blower sheet base paper to a predetermined length and easy to separate the blower sheet base paper according to the same movement amount On the line, the above-mentioned easy-to-separate blower opening paper piece is folded and held at a predetermined position, and at the same time, it is cut off from the blower opening base paper and supplied to the moving line at the same speed as the same line in the moving direction of the same line. And a line sensor provided on the moving line and a means for supplying the folding portion of the blown-fold folded paper piece from the perforation or the cut mark to a predetermined position by the signal of the perforation or cut mark sensor. It is comprised by the blowing opening sticking apparatus for double bottom bags characterized by the above.

"Operation" Therefore, the length between the perforations or the cut marks (bag length), the length of the blow-in paper piece, the folding amount of the paper piece (folding position), and the position of the blow-in opening sticking position of the folded paper piece (from the perforation) Enter the distance). In this state, when the bag base paper is towed to form a movement line, the line sensor directly detects the line speed and the movement amount, and the blowing port paper piece length of the movement amount of the movement line regardless of the fluctuation of the speed and the movement amount. / The output amount of the blower fiberboard feed line is output to the bag length ratio, and the feed line is moved. In this state, the length of the pre-input paper piece is compared with the movement amount of the moving line to output the rotation speed command of the paper piece length cutting means to leave the easy-to-separate connection to the paper for the blowing opening of the feeding line. A fixed-length blow-out paper piece having a cut portion is formed. Subsequently, the paper piece is fed to the blow-in port supply line, and at the position of the folding amount inputted in advance, the paper piece is folded into the paper piece folding and holding section of the line and at the same time for the blow-in port. Due to the speed difference between the speed of the raw paper feed line and the speed of the blow-in port supply line, the paper piece is cut off from the connecting portion left in the cut portion and is held by the holding portion. Then, the supply line that holds the folding paper piece for the blow-in port also moves to the same speed as the bag base paper moving line by the calculation speed command by the signal of the line sensor and the perforation or cut mark sensor, The above-mentioned blow-in opening folding paper piece is supplied from a perforation or a cut mark to a predetermined position, and is adhered to an adhesive previously applied to the same position on the base paper.

[Example] In this example, description will be given of the case where the blow-in port is attached to the double-sided paper bag (in the case of the double-sided sewing paper bag, the cut mark sensor may be used instead of the perforation sensor described below. Since the operation and effect of are completely the same as those of the present embodiment, description thereof will be omitted).

A moving line L of the bag manufacturing base paper 2 that is pulled and drawn from the winding base paper (not shown) is formed, and perforations 1 (perforator (not shown)) are formed on the base paper 2 for each bag length. Formed. On the other hand, above the line L, there is formed a blower port base paper feed line 1 which is pulled out from the take-up blower port base paper 4 by the pinch rollers 8, 8. The movement amount of the feeding line 1 is fed at the ratio of the movement amount of the movement line L of the blowing port paper piece length / bag length. A line sensor 3 by a pulse generator 10 is in contact with the moving line L, and the signal is sent to a controller 9 which detects the speed and moving amount of the moving line L and is operated to calculate the pinch rollers 8 and 8 DC motors for driving. A speed command is output to the servo amplifier 12 of 11, and the pinch rollers 8 and 8 are rotated at the above-described ratio to control the moving amount of the feeding line 1 at a constant ratio according to the moving amount of the moving line L. .
On the feed side of the pinch rollers 8 and 8, there are provided a blower sheet piece cutter by a rotation receiving roller 13 and a rotary cutting blade 14 (with a notched groove forming a connection portion that can be easily separated) in contact with the rotation receiving roller 13, and the line sensor 3 Signal, a speed command is output to the servo amplifier 16 of the DC motor 15 for driving the cutting blade 14, and the motor 15 causes the cutting blade 14 to rotate in accordance with the movement amount of the feeding line 1. Line l
Irrespective of the change in speed, the notch portion is formed on the blow-out paper sheet piece 5 leaving a connection portion which is easily separable by a predetermined length. The paper piece 5 on which the cut portion is formed is a guide rotation roller 17, 1
It is moved by being sandwiched by 7 and is fed onto the blower inlet supply line 1 ′ along the upper tangent line of the blower inlet supply roller 18. The roller 18 has a paper piece folding and holding section 7, and a rotary roller 20 provided with a paper piece folding plate 19 projecting above the roller 18 is provided on both rollers 18 and 20 on rotary shafts 21 and 22, respectively. Signals from the line sensor 3 are transmitted to the servo amplifier 24 of the DC motor 23 by rotating the rotation roller 20 by the driving DC motor 23 by rotating them in mutually opposite directions by a meshing gear (not shown). And a rotation speed command calculated by the controller 9 from a signal from the perforation or cut mark sensor 6 by the light projector 25 and the light receiver 26 provided on both sides of the movement line L, and the rotation speed of the DC motor 23 and the rotation roller. 20 and the blowing port supply roller 18 are controlled in rotation speed to leave a connection part on the roller 18 which is fed to a predetermined folding position and which can be easily separated. The paper piece 5 of a certain length having a cut portion is folded by the paper piece folding plate 19 projecting from the rotary roller 20 into the paper piece folding and holding section 7 of the roller 18, and at the same time, the blowing paper base paper feeding line 1 Due to the speed difference (l <l ') between the speed and the speed of the blow inlet supply line l', the paper piece 5 is separated from the connection left in the cut portion and is doubled at a predetermined position by the same folding and holding portion 7. The folded folding paper piece 5'for the blow-in port is held, and regardless of the speed of the moving line L, the same folding paper piece 5'is formed on the bag-making base paper 2 at the same speed as the speed of the same line L. The operation of supplying the folded paper piece 5'to the body sticking portion of the base paper 2 of the moving line L by supplying it from the perforated line 1 to a predetermined position and applying the adhesive previously applied to the same position. It is repeated every 1st stitch.

Reference numeral 27 in the figure denotes a paper tube shaping unit formed by a shaping plate (not shown), 28 denotes a double-sided paper bag formed by the paper tube 27, and 28 ″.
Is a sewing machine sewn paper bag having a blow opening in the body sticking section, and 29 is a set value (bag length, blow opening paper piece length, folding amount of the paper piece, position from perforation of folding paper piece for blow opening) , TG is a tachogenerator, and PG 'is a feedback pulse generator.

"Effects" Since the present invention is configured as described above, the bag length, the blowing mouth piece length, the folding position of the paper piece, and the blowing mouth sticking position of the base paper for bag making (distance from perforation or cut mark) Just by inputting, the speed and the movement amount of the moving line L are read and compared by the line sensor 3 and the perforation or cut mark sensor 6 and driven independently, so that the folding paper for the blow-in port can be driven with extremely high accuracy. The piece 5'can be attached to a predetermined position of the bag-making base paper 2 and the blower opening fold paper piece 5'in spite of the speed change of the moving line L, for example, the speed increase fluctuation at the time of starting the moving line L. Is supplied from the perforations 1 of the base paper 2 to a predetermined position with high accuracy, and therefore the length of the paper piece and the folding position shift until the moving line L reaches a steady speed, and the deviation of the blowing port sticking to the base paper 2. By etc. There is no loss (the same is true for speed-down fluctuations during normal stop and emergency stop), not only can product yield be improved, but also the speed of the moving line L can be increased to significantly improve the efficiency of double-bottom bag paper tube manufacturing. It is possible to improve, and it is possible to easily and promptly respond to a change in the bag length and the call inlet port length.

[Brief description of drawings]

FIG. 1 is a diagram showing a blowing port sticking device for double bottom bags of the present invention,
Fig. 2 is a system block diagram of the same device, Fig. 3 is a plan view of the perforation sensor, Fig. 4 is a plan view of the double-bottomed paper bag in a paper tube shaping state, and Fig. 5 is a folded paper piece supply sticker for the blowing port. FIG. 6 is a perspective view of the wearing state, FIG. 6 is a perspective view of the double-sided paper bag, and FIG. 7 is a perspective view of the double-sided sewing paper bag. 1 ... perforations, 2 ... bag base paper, L ... moving line, l ... blow port base paper feed line, l '... blow port supply line 3, ...
Speed sensor, 4 ... blower base paper, 5 ... blower paper piece,
6 ... Perforation or cut mark sensor, 7 ... Blow-in paper single-folding holding part.

Claims (1)

[Claims] 1. A bag manufacturing base paper moving line having perforations or cut marks for each bag length, a blow port base paper feeding line, and a blow port feeding line. The moving line has a line sensor and a sewing machine. A means for reading the speed and movement amount of the moving line consisting of the eye or the cut mark sensor,
A means for controlling the movement amount of the feed line to the ratio of the movement amount of the movement line to the ratio of sheet piece length / bag length by the signal from the line sensor and the blowing port according to the movement amount. A means for cutting the base paper for a certain length into the blowing opening paper piece which is easy to cut, and the feeding line which is easy to separate is folded and held at a predetermined position in the supply line, and at the same time, it is cut from the blowing paper and is cut. A means for supplying to the moving line at the same speed as the same line in the moving direction of the same line, a line sensor provided on the same moving line, and a folding portion of the blown-fold folded paper piece by a signal of a perforation or a cut mark sensor. A device for supplying air from a perforation or a cut mark to a predetermined position is provided with a blowing port sticking device for both bottom bags.