WO2019072124A1

WO2019072124A1 - Small upper opening folding apparatus for paper bag machine, and small upper opening folding method therefor

Info

Publication number: WO2019072124A1
Application number: PCT/CN2018/108909
Authority: WO
Inventors: 陈凯声
Original assignee: 福建南王环保科技股份有限公司
Priority date: 2017-10-11
Filing date: 2018-09-29
Publication date: 2019-04-18
Also published as: JP2020536822A; CN107529492B; CN107529492A

Abstract

Disclosed are a small upper opening folding apparatus for a paper bag machine, and a small upper opening folding method therefor. The small upper opening folding apparatus comprises: a first paper transfer roller, a gluing roller, an opening folding device, an opening pressing device and a second paper transfer roller, wherein the first paper transfer roller transfers a paper sheet to a small upper opening folding roller of the opening folding device; the gluing roller is used for gluing the paper sheet; the opening folding device further comprises an opening folding prong, a folding knife means, an upper opening folding clamping plate and an upper opening folding insertion blade, wherein the upper opening folding insertion blade enables an opening folding edge of the paper sheet to be inserted into the upper opening folding clamping plate, the opening folding prong swings together with a cam of the small upper opening folding roller, and the folding knife means and the opening folding prong move in a cooperating manner to perform an opening folding action on the opening folding edge; the opening pressing device presses the opening folding edge of the paper sheet; and the second paper transfer roller is used for transferring the paper sheet with a folded small upper opening to the outside. The present invention can greatly save on paper and glue materials and has a high production rate, and can therefore reduce production costs.

Description

Folding upper mouth device of paper bag machine and folding upper mouth method thereof

Technical field

The invention relates to the technical field of processing a portable paper bag, in particular to a folding upper mouth device of a paper bag machine and a method for folding the upper mouth.

Background technique

Today's paper bags are divided into two types: non-folding mouths and ordinary folding mouths. Paper bags that are not folded into the mouth are tooth pockets or flat pockets. Such paper bags are easily torn, which may cause scratches on the contact parts between the person and the flat mouth. The paper bag with the upper mouth is wider than 50mm, and the material cost of the paper and glue is high. The paper bag with the ordinary folding paper is the sponge glue on the rubberizing roller after the paper is transferred to the folding roller through the paper conveying roller. The strip transfers the glue to the tail of the paper, and then realizes the folding operation through the folding knife device and the folding scorpion. During the paper conveying process, the pressure is pressed by the pressing rollers to ensure the adhesion between the upper mouth and the paper, but the ordinary folding device The sponge strip can not achieve the accurate transfer of the glue line at the 2-3mm fold. The glue that has not been completely transferred is easy to accumulate on the sponge strip, which causes the glue line to gradually widen as the product increases, and the glue will squeeze when pressed. The paper bag could not be opened smoothly, so the folding of the paper bag could not be achieved.

Summary of invention

technical problem

Problem solution

Technical solution

In view of the above, the present invention provides a folding upper mouth device for a paper bag machine which can reduce the production cost and has a high production speed, and a method for folding the upper mouth.

To achieve the above object, the present invention provides the following technical solutions:

A folding upper mouth device of a paper bag machine, comprising: a paper conveying roller 1, a gluing roller, a folding device, a pressure port device and a paper conveying roller 2, wherein the paper conveying roller transfers the paper to the folding device The squeezing roller is used for sizing the paper, and the squeezing device further comprises a folding tweezer, a folding knife device, a folding upper splint and a folding upper knives, the folding scorpion and the scorpion The folding upper splint is disposed on the folding upper upper roller, and the folding upper inserting knife inserts the folding edge of the paper into the folding upper clamping plate, and the folding tongue is folded with the folding The cam of the mouth roller swings, the folding knife device cooperates with the folding tweezers to perform the folding action of the folding edge, the pressing device presses the folding edge of the paper, and the paper conveying roller 2 and the folding The small upper roller cooperates with the rotation, and the paper transfer roller 2 is used for conveying the paper folded around.

Further, the lower end of the folding tweezers has a swinging seat, and the rotating wheel at the front end of the swinging seat rolls with the cam on the folding upper upper drum, so that the folding tweezers swing along the folding upper upper drum.

Further, the folding device further includes a folding knife rotating arm, a folding knife action swing arm and a folding knife action cam, wherein the folding knife action swing arm is disposed on the folding knife rotating arm, and the folding knife action swing arm The folding knife action arm rotates with the folding knife action cam, and the folding knife arm cooperates with the folding upper plate.

Further, the pressure port device comprises a first pressure roller, a wire belt, a pressure roller group and a paper roller group, and the first pressure roller rotates in cooperation with the folding upper nozzle roller, and the wire belt sleeve On the outside of the first pressure roller, the paper transfer roller 2 and the pressure roller group, the paper roller group cooperates with the pressure roller group, and the wire belt is from the paper roller group and the pressure roller group by.

Further, there is a gap between the folding tweezers and the surface of the folding upper nozzle, the gap being 0.5 mm.

Further, the rubber strip of the rubberizing roller is a trapezoidal rubber strip, the rubber strip is made of nitrile rubber, and the surface is coated with Teflon tape.

Further, the strip has a width of 1.5 mm to 3 mm.

Further, the contact surface of the folded tweezers is a rubber-resistant nitrile rubber material.

Further, the surface of the paper transfer roller 2 is partially pasted with a sponge strip.

The invention also provides a folding upper mouth method using the folding upper mouth device of the paper bag machine described above, which comprises the following steps:

Step I, the paper is conveyed to the folding upper mouth roller through the paper conveying roller, and the rubberizing roller applies glue to the paper;

Step II: the bite of the folding upper roller bites the edge of the front end of the paper, the folding splint is opened, and the folding opening knife inserts the folding edge of the paper into the folding splint Inside;

Step III, the folding upper splint is closed, the folding upper plug is extracted, and the folding tweezer performs the folding upper opening action of the folding edge with the cam swing;

Step IV, the folding splint is opened;

Step V: During the paper conveying process, the tape and the paper transfer roller 2 press the edge of the paper to prevent the small upper mouth from being rebounded in the step III, and the folding tweezers are reset to complete the The paper is folded up.

As can be seen from the above technical solution, the advantages of the present invention are:

1. By reducing the size of the upper mouth, the paper and glue materials are greatly saved compared with the ordinary folded paper bags, and the production cost is reduced;

2, automatic realization of gluing, folding, laminating action, processing 80-150 small caps per minute, high production speed;

3. By setting the contact surface of the folding tweezers to be resistant to the anti-friction oil, the niobium rubber can be pressed against the surface of the roller to ensure the adhesion between the upper mouth and the paper;

4. Paste the sponge strip on the two surfaces of the paper transfer roller. When the folded small upper mouth is between the folding upper upper roller and the paper conveying roller 2, the upper folding opening and the paper are pressed again by the sponge, and the paper is passed through. During the process of transferring the roller to the conveying platen, the small upper mouth and the paper are tightly pressed by the paper feeding coil and the second pressing wheel until the glue is solidified, and the upper opening does not rebound during the pressing process;

5. The rubber strip is coated with Teflon tape on the surface of the nitrile rubber. Since the surface of the Teflon tape is smooth, the transfer of the glue and the residual surface of the strip can be better ensured.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The invention will now be described in further detail with reference to the drawings.

Advantageous effects of the invention

Brief description of the drawing

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work. In the drawing:

Figure 1 is a schematic view of the structure of the present invention.

Figure 2 is a partial structural view of Figure 1 of the present invention.

Fig. 3 is a schematic view showing the structure of the folding upper nozzle of the present invention.

Fig. 4 is a schematic view showing the structure of the operation of the folding splint of the present invention.

Fig. 5 is a schematic view showing the operation of the folding tweezer of the present invention.

Figure 6 is a schematic view showing the structure of the folding knife device of the present invention.

Figure 7 is a schematic view showing the structure of a sheet of the present invention.

The figure is marked as:

Folding device-1, folding upper roller-11, grit-111, cam-112, folding tweezers-12, swinging seat-121, contact surface-122, folding knife device-13, folding knife action swing arm-14, Roller-141, folding knife rotating arm-15, folding knife action cam-16, folding upper knife -17, folding upper clamping plate-18, pressure port device-2, first pressure roller-21, wire belt-22 , wire belt frame -23, upper pressure wheel set-24, upper pressure wheel -241, paper roll group -25, paper roll -251, paper transfer roller -3, glue roller -4, rubber strip -41 , Paper-feeding roller 2-5, paper-feeding coil-51, second pressure-wheel-52, rubber disk-8, paper-9, bite edge-91, folding edge-92, glue line-93.

Invention embodiment

Embodiments of the invention

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 to 7 of the accompanying drawings, a folding upper opening device of a paper bag machine as shown in FIG. 1 includes: a transfer roller 3, a gluing roller 4, a folding device 1, a pressing device 2, and a transfer roller. 2, the paper transfer roller 3 transfers the paper 9 to the folding upper nozzle 11 of the folding device 1, and the rubberizing roller 4 is used for sizing the paper 9, as shown in FIG. The folding device 1 further includes a folding tweezers 12, a folding knife device 13, a folding upper splint 18 and a folding upper insertion knife 17, and the folding tweezers 12 and the folding upper splint 18 are all rotated along with the folding upper upper roller 11. The folding mouth inserting knife 17 inserts the folding edge 92 of the paper 9 into the folding upper splint 18, and the folding tweezers 12 swing with the cam 112 of the folding upper upper roller 11, as shown in FIG. As shown in FIG. 6, the folding knife device 13 cooperates with the folding tweezers 12 to perform the folding operation of the folding edge 92, and the pressing device 2 presses the folding edge 92 of the paper 9 to the paper conveying roller. The second 5 is rotated in cooperation with the folding upper nozzle 11, and the paper transfer roller 2 is used for pressing the folded upper upper mouth and transferring the paper 9 outward. Before the coating glue on the paper 9 is dried and solidified, the folded upper mouth is always kept in a compact state. By folding the upper mouth, the paper and the glue material are saved more than the ordinary folded paper bag, and the production cost is reduced. .

Specifically, the folding scorpion 12 and the folding upper splint 18 are movably disposed on the folding upper upper roller 11, and the folding mortise 12 and the folding upper clamping plate 18 are in the upper folding roller When the 11 is rotated, the folding tweezers 12 and the folding splint 18 are also moving by themselves.

The lower end of the folding rafter 12 has a swinging seat 121, and the rotating wheel at the front end of the swinging seat 121 rolls with the cam 112 on the folding upper upper drum 11, so that the folding tweezer 12 follows the folding upper roller 11 swings.

As shown in FIG. 2 and FIG. 6, the folding device 1 further includes a folding knife rotating arm 15, a folding knife swing arm 14 and a folding knife motion cam 16, and the folding knife swing arm 14 is disposed at the folding knife rotation. On the arm 15, the folding knife swing arm 14 rotates along with the folding knife motion cam 16, and the folding knife swing arm 14 and the folding upper jaw 18 cooperate with each other.

As shown in FIG. 1, the pressure port device 2 includes a first pressure roller 21, a wire belt 22, a pressure roller set 24, and a paper feed roller set 25, and the first pressure roller 21 and the folding upper roller 11 The wire belt 22 is sleeved on the outer side of the first pressure roller 21, the paper transfer roller 2 and the pressure roller group 24, and the paper roller group 25 is matched with the pressure roller group 24, The tape 22 passes between the paper roll set 25 and the pinch roller set 24, and the wire tape 22 is annular.

The paper feed roller set 25 includes a plurality of paper feed rollers 251 arranged in sequence, and the pressure roller set 24 includes a plurality of upper pressure rollers 241 arranged in sequence, and the paper feed roller 251 and the upper pressure roller 241 are one by one. Correspondingly, the upper pressing wheel 241 and the paper feed roller 251 cooperate with each other to ensure that the paper 9 is folded tightly and tightly pressed during the conveyance of the paper 9.

Preferably, there are four upper pressing wheels 241.

The port device 2 further includes a belt frame 23 that changes a direction in which the belt 22 is transported, the belt frame 23 being located on an upper side of the pressure roller set 24, from the upper roller 241 and the tray The belt 22 conveyed between the paper rollers 251 is transported on the belt frame 23, and is transported between the folding upper nozzle 11 and the first pressure roller 21, and then from the paper transfer roller 2 5 and the folding upper upper drum 11 are transported back to between the upper pressing wheel 241 and the paper feed roller 251.

The paper feed roller 51 and the second pressure roller 52 are disposed on the lower side of the paper feed roller 2, and the paper 9 folded in a small upper mouth passes between the paper feed coil 51 and the paper feed roller 2, further ensuring The small upper mouth is completely bonded to the paper.

The strip 41 of the gluing roller 4 is a trapezoidal strip. The width of the contact surface of the trapezoidal strip with the flap edge 92 of the sheet 9 is 2 mm, and the strip 41 is in contact with the surface of the capping roller 4 for 12 mm, in order to ensure the glue. The attachment of the strip 41 to the gumming drum 4 does not slip. The pressure between the sizing roller 4 and the folding upper roller 11 is 0.2-0.5 mm. The smaller pressure can ensure the accurate transfer of the rubber line of the rubber strip 41, and the width is ensured. The rubber strip 41 is made of a nitrile rubber surface. Coated with Teflon tape, because the surface of Teflon tape is smooth, it can better ensure the transfer of glue and the cleaning of the surface of the strip.

The folding tweezer 12 has a gap with the surface of the folding upper nozzle 11 , and the gap is 0.5 mm. Since the soft contact surface 122 is adopted, the folding operation of the paper bag machine can be avoided. An abnormal sound of knocking occurs, and therefore, the folding upper device of the paper bag machine can realize low-speed operation at high speed.

The strip 41 of the gluing roller 4 is a trapezoidal strip, the strip 41 is made of nitrile rubber, and the surface is coated with a Teflon tape.

Specifically, the width of the strip 41 is 1.5 mm to 3 mm, which ensures that the strip is not extruded after coating, which affects the smooth opening of the paper bag.

The contact surface 122 of the folding tweezers 12 is made of a rubber-resistant nitrile rubber material.

The surface of the paper transfer roller 2 is pasted with a sponge strip. When the folded upper opening is between the upper upper roller 11 and the paper transfer roller 2, the upper folding opening and the paper are pressed again by the sponge to further ensure The folded small fold does not rebound.

The folding upper opening device of the paper bag machine further comprises a rubber disk 8 on one side of the size roller 4, and the rubber disk 8 provides a rubber strip 41 to which a small fold is bonded.

As shown in FIG. 5, the contact surface 122 of the folding tweezers 12 is a rubber-resistant nitrile rubber material, because the surface of the folding tweezers 12 and the surface of the folding upper nozzle 11 are both hard surfaces and inertia, and the surface of the folding tweezers 12 is folded. The small upper roller 11 must have a gap of 3 mm, otherwise an abnormal sound of tapping may occur at high speed operation. Due to the gap, the adhesion of the folding edge 92 to the paper 9 is only by inertia, so the folding tweezers 12 and the folding The mouth contact surface is changed to anti-friction oil-resistant nitrile rubber, so that the surface of the tweezers can be pressed against the surface of the roller to ensure the adhesion between the upper mouth and the paper, ensuring that the folded small fold does not rebound and remains folded. shape.

As shown in Fig. 8, since the small upper mouth width of the fold is 8-14mm, the resilience is large, and the glue bonding takes time. Therefore, it is necessary to ensure that the fold of the tweezers is 12 folds until the glue is completely bonded. The upper folding opening and the paper 9 are always pressed by the cable belt 22 or the pressing wheel to prevent rebound. Therefore, when the folding tweezer 12 is ready to be opened, the upper folding opening and the paper 9 are passed through the wire belt 22, the first pressure roller 21 and the folding upper roller 11. Pressing and splicing the sponge strip on the surface of the paper transfer roller 2 can achieve the function of folding the paper bag.

The surface of the paper transfer roller 2 is partially pasted with a sponge strip. When the folded upper opening is between the upper upper roller 11 and the paper transfer roller 2, the upper folding opening and the paper 9 are pressed again by the sponge. During the transfer of the transfer roller 2 to the transfer platen, the upper loop and the paper 9 are tightly pressed by the paper feed coil 51 and the second pressure roller 52, and fixed by the paper feed coil 51 and the second pressure roller 52 until the glue is solidified. So that the folded small mouth does not rebound, and the effect of folding the small mouth is good.

As shown in FIG. 3 and FIG. 7, the bite 111 of the folding upper nozzle 11 bites the bite edge 91 of the front end of the paper 9, and the flap edge 92 of the tail of the paper 9 performs a folding operation, and the glue line 93 is located close to the On one side of the hem edge 92, the nip edge 91 is ultimately processed into the bottom of the paper bag.

As shown in Fig. 4, the area A and the area B of the upper upper reel 11 are the areas where the folding splint 18 is opened and closed.

As shown in FIG. 1, the paper transfer roller 3 is located on one side of the folding upper roller 11, and the paper 9 is conveyed between the paper transfer roller 3 and the folding upper roller 11. The folding upper upper roller 11 rotates clockwise, the paper conveying roller 3 rotates counterclockwise, with the paper 9 on the surface of the folding upper nozzle 11, and the rubberizing roller 4 feeds the paper 9 Gluing, the folding device 1 performs a folding opening of the flap 9 of the paper 9. The folding edge 92 of the paper 9 after folding the small opening is always kept pressed by the first pressing wheel 21 and the belt 22 to prevent the folding. The 92-fold small mouth rebounds, and the paper bag machine's folding upper mouth device can realize 80-150 paper bags with a size of 8-14 mm per minute, and the production speed is greatly improved.

The paper bag made by the folding upper mouth device of the paper bag machine has a small folding mouth, which can solve the disadvantage that the toothed paper bag and the flat paper bag are easy to tear and scratch the human body; compared with the existing folding mouth device, the folding The small upper device is more economical for paper and glue, and has a high degree of automation. At the same time, the production speed is improved, and 80-150 folds per minute are produced, which greatly improves the efficiency of the enterprise.

The method for folding the upper mouth of the above-mentioned paper bag machine includes the following five steps:

Step I, the paper 9 is conveyed to the folding upper nozzle 11 via the paper transfer roller 3, and the rubberizing roller 4 applies glue to the paper 9;

Step II, the bite 111 of the folding upper nozzle 11 bites the bite edge 91 of the front end of the paper 9, the folding splint 18 is opened, and the folding port inserting knife 17 folds the edge of the paper 9 92 is inserted into the folding splint 18;

Step III, the folding upper splint 18 is closed, the folding upper inserting knife 17 is withdrawn, and the folding tweezer 12 swings with the cam 112 to perform the folding upper opening action of the folding edge 92;

Step IV, the folding splint 18 is opened;

Step V, during the conveyance of the paper sheet 9, the tape 22 and the paper transfer roller 2 5 press the folding edge 92 of the paper 9 to prevent the small upper mouth from being rebounded in the step III, the folding scorpion 12 reset, complete the folding of the paper 9;

In the step V, the sponge strip is partially adhered to the surface of the paper transfer roller 2, so that the function of folding the paper bag to the upper mouth can be well realized.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

The utility model relates to a folding upper mouth device of a paper bag machine, which comprises: a paper conveying roller (3), a gluing roller (4), a folding device (1), a pressure port device (2) and a paper conveying roller 2 ( 5), the paper transfer cylinder (3) transports the paper (9) to the folding upper nozzle (11) of the folding device (1), and the rubberizing roller (4) is used for feeding paper ( 9) Gluing, the folding device (1) further comprises a folding tweezers (12), a folding knife device (13), a folding splint (18) and an upper folding knife (17), the folding tweezers (12) And the folding upper splint (18) are rotated along with the folding upper upper drum (11), and the folding upper inserting knife (17) inserts the folding edge (92) of the paper (9) into the In the upper splint (18), the folding tweezers (12) are swung along the cam (112) of the folding upper roller (11), and the folding device (13) and the folding tweezers (12) Carrying out the folding action of the folding edge (92) in cooperation with the movement, the pressing device (2) pressing the folding edge (92) of the paper (9), the paper transfer roller (5) and the folding The small upper roller (11) cooperates with the rotation, and the paper transfer roller 2 (5) is used for pressing the folded small upper mouth and transferring the paper (9) outward. .
The folding upper opening device of the paper bag machine according to claim 1, wherein the lower end of the folding tweezers (12) has a swinging seat (121), and the rotating wheel at the front end of the swinging seat (121) is as described The cam (112) on the upper upper roller (11) is rolled so that the folding tweezers (12) swing with the folding upper roller (11).
The folding upper device of the paper bag machine according to claim 2, wherein the folding device (1) further comprises a folding knife rotating arm (15), a folding knife swing arm (14) and a folding knife action cam (16), the folding knife swing arm (14) is disposed on the folding knife rotating arm (15), and the folding knife swing arm (14) rotates along with the folding knife operating cam (16). The folding knife swing arm (14) and the folding mouth flap (18) cooperate with each other.
A folding upper device for a paper bag machine according to claim 1, wherein said pressing device (2) comprises a first pressure roller (21), a wire belt (22), a pressure roller group (24), and a paper feed roller set (25), the first pressure roller (21) rotates in cooperation with the folding upper roller (1 1), and the wire belt (22) is sleeved on the first pressure roller (21) , the outer side of the transfer cylinder two (5) and the pressure roller set (24), the paper feed roller set (25) is mated with the pressure roller set (24), the wire belt (22) from the Pass between the paper roll set (25) and the pressure roller set (24).
A folding upper opening device for a paper bag machine according to claim 3, wherein a gap is formed between the folding tweezer (12) and the surface of the folding upper roller (11), the gap being 0.5 Mm.
The folding upper mouth device of the paper bag machine according to claim 1, wherein the rubber strip (41) of the gumming drum (4) is a trapezoidal strip, and the strip (41) is made of nitrile. Rubber and coated with Teflon tape.
The folding upper opening device of a paper bag machine according to claim 6, wherein the strip (41) has a width of 1.5 mm to 3 mm.
The folding upper mouth device of the paper bag machine according to claim 2, characterized in that the contact surface (122) of the folding tweezers (12) is made of a rubber-resistant nitrile rubber material.
A folding upper opening device for a paper bag machine according to claim 1, characterized in that the surface of the transfer cylinder (5) is partially pasted with a sponge strip.
A method for folding a small upper mouth device of a paper bag machine according to any one of claims 1 to 9, comprising the steps of:

Step I, the paper (9) is conveyed to the folding upper nozzle roller (11) via the paper conveying roller (3), and the rubberizing roller (4) glues the paper (9);

Step II, the bite (111) of the folding upper nozzle (11) bites the bite edge (91) of the front end of the paper (9), the folding splint (18) is opened, and the folding opening is inserted a knife (17) inserts the flap edge (92) of the paper (9) into the upper flap (18);

Step III, the folding upper splint (18) is closed, the folding upper inserting knife (17) is withdrawn, and the folding tweezer (12) is swayed with the cam (112) to reduce the folding edge (92). Upper mouth movement;

Step IV, the folding splint (18) is opened;

Step V, during the conveyance of the paper (9), the tape (22) and the paper transfer roller (5) press the folding edge (92) of the paper (9) to prevent the folding in step III. The upper mouth rebounds, the folding tweezer (12) is reset, and the folding of the paper 9 is completed.