WO2011072542A1 - Air suction method and structure for v-form packed paper napkin folding machine - Google Patents

Air suction method and structure for v-form packed paper napkin folding machine Download PDF

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Publication number
WO2011072542A1
WO2011072542A1 PCT/CN2010/077237 CN2010077237W WO2011072542A1 WO 2011072542 A1 WO2011072542 A1 WO 2011072542A1 CN 2010077237 W CN2010077237 W CN 2010077237W WO 2011072542 A1 WO2011072542 A1 WO 2011072542A1
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WIPO (PCT)
Prior art keywords
paper
suction
folding
roller
control port
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Application number
PCT/CN2010/077237
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French (fr)
Chinese (zh)
Inventor
吴兆广
Original Assignee
Wu Zhaoguang
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Publication date
Priority to CN200910258272.0 priority Critical
Priority to CN200910258272 priority
Application filed by Wu Zhaoguang filed Critical Wu Zhaoguang
Publication of WO2011072542A1 publication Critical patent/WO2011072542A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00Folding thin material
    • B65H45/12Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/24Interfolding sheets, e.g. cigarette or toilet papers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00Folding thin material
    • B65H45/12Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/20Zig-zag folders

Abstract

Air suction method and structure for V-form packed paper napkin folding machine are provided. The suction structure includes two paper folding rollers provided side by side and two cutter shafts. Cutters corresponding to the cutter shafts, suction holes, and V-form grooves for folding the paper are arranged in an axial direction on roller surfaces of the paper folding rollers, and suction holes are also arranged on groove surfaces of the V-form grooves. Each end of each paper folding roller is provided with paper-conveying suction control ports and paper-folding suction control ports, both of which are provided with air valves. The paper-conveying suction control ports and paper-folding suction control ports at each end of the paper folding rollers are communicated with corresponding suction channels, and the suction holes are communicated with corresponding suction channels, thus forming a structure in which the paper-conveying suction control ports and the paper-folding suction control ports at each end of the paper folding rollers suction air synchronously. According to the present invention, high production efficiency and paper folding precision can be realized, and energy consumption and production and operating cost can be reduced.

Description

[Invention name established by ISA according to Rule 37.2] Inhalation method and structure of a V-shaped box paper towel folding machine

Technical field

The invention relates to the technical field of toilet paper folding machines, and more particularly to a method and structure for sucking and releasing gas of a V-shaped box paper towel folding machine.

Background technique

The main structure of the conventional V-shaped paper towel folding machine is shown in Figures 1 and 2. It comprises a left upper knife shaft 1, a right upper knife shaft 11 and a left origami roller 2, and a right origami roller 21, each of which is in the shape of a chevron. There are six blind hole-shaped suction passages in the roller, and there are air chambers at both ends of the folding paper roller. There are three air suction passages and one air chamber communicating with each other, and the other three air suction passages are connected with the air chamber at the other end. An air suction hole communicating with the air suction passage is disposed on the roller surface of the paper folding roller. During operation, the paper towel can be adsorbed on the paper folding roller through the air suction hole, so that the air chambers at both ends of the paper folding roller are alternately inhaled and closed. The left and right sets of origami rollers respectively perform cross cutting, paper feeding, origami Action, the paper towels are alternately folded into a V-shaped stack. The specific origami step of the conventional V-shaped paper towel folding machine is: the left folding roller 2 rotates in the clockwise direction, and when the upper portion is in contact with the upper left cutting shaft 1 , the raw paper is transversely cut, and the suction hole on the left folding roller 2 The raw paper is adsorbed and taken to the horizontal position, at which time the left paper feed chamber 3 of the left paper roll 2 is closed and the right paper feed chamber 41 of the right paper roll 21 is opened, so that the right paper roll 21 feeds the paper of the left paper roll 2 When sucked in, the right folding roller 21 rotates counterclockwise. When the right folding roller 21 rotates through the 60° angle, the right folding paper chamber 41 is closed, and the paper adsorbed on the roller surface of the right folding roller 21 is dialed by the fork; The paper roll 21 and the left paper roll 2 are offset by an angle of 60° and the above steps are repeated, so that the left and right sets of upper and lower paper rolls and the paper roll alternately perform the steps of cutting, feeding, and folding, and a common V is produced. Shaped paper towel.

 The above existing V-shaped paper towel folding machine and its origami method have many shortcomings, such as:

First, the efficiency is low, and it is impossible to form a continuous production line. The origami roller of the traditional V-shaped paper towel folding machine is limited to the rigidity and the cutting precision, and is generally only about 1.3 meters, and the longest is no more than 1.8 meters. Although the maximum amount of origami per minute can reach 600-800 sheets, The origami roller is short, and the raw paper produced is generally more than two meters. Therefore, the existing V-shaped paper towel folding machine cannot form a continuous production line with the machine for producing the original paper, and the original paper must be cut into a suitable shape by a slitting and rewinding machine. The width can be further processed on the existing V-shaped paper towel folding machine, which not only greatly limits the production efficiency, but also consumes time, electricity, paper, and labor, resulting in a lot of unnecessary waste.

Second, high energy consumption, low precision of origami. The existing V-shaped paper towel folding machine is limited to its structural features, and can only improve the folding paper efficiency by increasing the rotation speed, but its suction passage is a blind hole, and the suction can only be performed from one end to the other end, and the rotation speed of the folding roller is high. At the time of inhalation, the inhalation passage is very short. In such a short period of time, the 1.3-meter-long suction passage is drawn from one end to the other, and inevitably, inconvenience occurs. The consequence is that the paper towel has a folding angle, which greatly affects the uniformity of the paper towel. In order to reduce this error, the power of the vacuum pump can only be increased, but even then, the error can only be controlled within a certain range. For each additional model of the vacuum pump, the cost is greatly increased.

At present, although there is a folding paper towel folding machine structure in foreign countries, as shown in Fig. 3, the cutting paper is completed by the movable knife shaft and the fixed knife shaft, and the origami paper is independently completed by the folding paper roller, and a gas valve is arranged on each side of the folding paper roller, only At the same time, an origami function is completed. The above structure is not only complicated in structure and high in cost, but also because the cutting paper is completed on the moving knife shaft, and after the cutting is completed, the paper is transferred to the folding roller to fold, which is easy to cause misalignment, so that the paper is folded irregularly. phenomenon.

Summary of the invention

The invention is a method for absorbing and releasing gas of a V-shaped box paper towel folding machine which has high efficiency, high precision of stacking paper, low energy consumption and low production and running cost, in order to solve the above-mentioned deficiencies.

Another object of the present invention is to provide a suction and deflation structure of a V-shaped tissue paper towel folding machine which is not only high in efficiency, high in precision of stacking paper, but also low in energy consumption and low in production and running cost.

 The present invention adopts the following technical solutions to achieve the above objectives:

A method for sucking and releasing gas of a V-shaped box paper towel folding machine, which is characterized in that: a suction control port which is connected with each other at both ends of a paper folding roller with a cutter on a roller surface, is controlled by suction from both ends At the same time, the mouth draws air to form a negative pressure adsorption paper towel, thereby realizing the paper feeding, paper cutting and folding process on the same folding paper roller.

In the above method, by folding the suction ports on the two origami rollers arranged side by side, the paper towels are alternately adsorbed to form a folded paper towel.

The device of the invention adopts the following technical solution: the suction and deflation structure of the V-shaped paper towel folding machine comprises two side-by-side folding rollers and two cutter shafts, and the roller surface of the folding paper roller is respectively disposed corresponding to the cutter shaft a cutter, a suction hole provided on both sides of the cutter, and a V-shaped groove for folding paper, and a suction hole is further provided on the V-shaped groove surface, and each paper folding roller has a paper feed suction control port on each side thereof. The paper suction control port, the paper feed suction control port and the origami suction control port are respectively provided with an air valve, and the corresponding paper feed suction control ports on both sides of the paper roll are electrically connected to each other through the air suction passage, and the corresponding sides of the paper folding roller The origami suction control ports are also electrically connected to each other through an air suction passage, and the air suction holes are correspondingly connected with the corresponding air suction passages to form paper feeding on both sides of the paper folding roller. The suction control port and the origami suction control port respectively synchronize the structure of the suction.

 As further described in the above scheme, the air valve provided on each side of the paper feed suction control port and the paper feed suction control port of the paper folding roller is an independent two air valve.

Further, the air suction passage includes three paper feed suction passages and three origami suction passages, and the paper feed suction passage and the paper feed suction passage are arranged at intervals in the paper folding roller, and the paper feed suction of the paper feed suction passage is connected. The air control port and the origami suction control port connecting the origami suction passage are arranged at two ends of the folding roller.

 The paper feed suction passage and the paper feed suction passage are arranged at equal intervals along the circumferential direction of the folding paper roller;

The paper feed suction control port and the paper feed suction control port are arranged at equal intervals along the circumferential direction of the paper roll surface. The paper feed suction control port and the paper feed suction control port may be disposed on the end surface of the paper folding roller, and the paper feed suction control port and the paper feed suction control port are arranged along the same circumference or respectively arranged along two circumferences with different radii. Or the paper suction control port and the origami suction control port are respectively disposed on the roll surface of the paper folding roller end face and the folding paper roller.

The gas valve is composed of a gas chamber closed between the valve body and the roll surface or the end surface of the paper folding roller, and forms a paper feeding air chamber and a paper folding air chamber at both ends of the paper folding roller, and the air valve includes paper feeding for controlling the paper feeding suction passage. The air valve and the ore paper valve that controls the origami suction passage.

The origami suction control port and the paper feed suction control port are staggered and arranged on the roller surface of the paper folding roller, and the outer side portions of the roller surfaces of each of the folding paper rollers are provided with a folding paper valve, and the roller surfaces of the two ends of each folding roller The upper part is provided with a paper feed air valve, which constitutes a two-way independent suction and folding paper valve structure of the roller surface.

The paper folding air valve and the paper feeding air valve are arranged side by side at the two ends of the folding paper roller to form a two-way up and down air suction origami air valve structure.

The gas distribution ring has a gas distribution ring at the two ends of the paper folding roller, and the gas distribution ring has a through hole corresponding to the position of the suction hole, and the gas distribution ring is fixedly connected with the paper folding roller through the mounting hole, and the installation hole is an adjustable strip shape. hole.

The air suction passage is disposed to penetrate a gas passage inside the paper folding roller in an axial direction, and both ends of the gas passage are sealed, and the air suction hole is vertically disposed on a roller surface of the paper folding roller and communicates with the gas passage.

 The beneficial effects that the present invention can achieve by adopting the above technical solutions are:

 1. Compared with the prior art, the device of the invention adopts a paper feeding suction control port and a paper suction suction control port and a corresponding air valve structure on both sides of the paper folding roller, and the paper folding roller can be used because of simultaneous suction and uniform suction. It has been extended to the longest length in the world, so that the paper folding machine can easily form a production line with the equipment for producing the raw paper, which greatly improves the production efficiency and thus reduces the production cost.

2. The air suction passage in the origami roller of the invention is a through hole having a gas valve at both ends. During operation, the air valve controls the suction passage to simultaneously inhale from both ends, so that the time for sucking the paper towel can be shortened and the speed can be accelerated. The paper suction speed avoids the phenomenon that the paper towel is folded due to the inhalation unevenness, and the method of inhaling both ends at the same time greatly reduces the power consumption compared with the existing one-way suction method, and the measured result shows The existing 1.3 meter roll long V-shaped paper towel folding machine needs 37KW power to work normally, and the method and device of the invention are the same as the 1.3 meter roller long V-shaped paper towel folding machine, only 15KW The power can work normally, which not only greatly reduces the operating cost of the equipment, but also greatly reduces the manufacturing cost of the equipment due to the use of a low-power motor and a vacuum pump.

3. The invention adopts the function of the paper folding roller to realize the paper folding and paper cutting at the same time. Compared with the prior art shown in FIG. 1 , the invention adopts the synchronous paper folding suction and the synchronous paper feeding suction structure on both sides of the paper folding roller, and the prior art. For single-side inhalation, as described in the foregoing 2, it has the advantages of high efficiency, high precision of stacking precision, low energy consumption, low production and running cost; compared with the foreign equipment described in FIG. 3, the present invention There is no need to use the movable cutter shaft and the fixed cutter shaft to cut the paper. Instead, the cutter shaft and the paper folding roller are used to cut the paper. There is no need to cut the paper after the paper is conveyed, and a double gas valve or a valve is provided on each side of the roller. Control the two actions of cutting paper and folding paper, so that the paper folding and feeding paper are completed on the same roller, the paper folding is more tidy, the paper folding speed is faster, the structure is simpler, and the production and manufacturing cost is low.

DRAWINGS

 Figure 1 is a schematic view showing the structure of a roller shaft of a conventional V-shaped paper towel folding machine;

 Figure 2 is a schematic view showing the distribution of the suction passage of the existing V-shaped paper towel folding machine;

 3 is a schematic structural view of a conventional foreign device;

 4 to FIG. 5 are schematic structural views showing the paper feed plenum and the folding paper plenum of the present invention respectively disposed on the roll surface and the end surface of the folding paper roll;

 6 to FIG. 8 are schematic structural views showing the plane structure of the paper folding roller and C-C and E-E in an enlarged cross-sectional view;

 9 to FIG. 10 are schematic structural views showing the lateral direction and the A direction of the bidirectional upper and lower suction folding of the roll surface according to the present invention;

 Figure 11 is a schematic view showing the structure of a double-suction passage for a roll surface one-chamber control according to the present invention;

 12 to FIG. 13 are schematic structural views showing the lateral direction and the A direction of the bidirectional independent suction folding of the roller surface according to the present invention;

 Figure 14 is a schematic view showing the structure of the air distribution ring outside the suction hole.

DESCRIPTION OF REFERENCE NUMERALS: 1. upper left cutter shaft, 11. upper right cutter shaft, 2. left origami roller, 21. right origami roller, 3. left feed air chamber, 31. right feed air chamber, 4. left origami gas Room, 41. Right origami air chamber, 5. Left paper suction channel, 51. Right paper suction channel, 6. Left origami suction channel, 61. Right origami suction channel, 7. Suction hole, 71. Suction hole, 8. V-shaped groove, 9. Roller air chamber, 101. Air distribution ring, 102. Rib board, 12. Paper feed suction control port, 13. Origami suction control port .

 detailed description

 In order to further illustrate the invention, the invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

As shown in FIG. 4 to FIG. 5, the suction and deflation structure of a V-shaped paper towel folding machine of the present invention comprises two left origami rollers 2, which are rotated side by side on a horizontal surface, and a right folding roller 21 and two side by side. a cutter shaft disposed at an upper portion of the paper folding roller, the cutter shaft being horizontally arranged and matched with the upper left cutter shaft 1 and the upper right cutter shaft 11 for rotating the cut paper, the upper left cutter shaft 1 and the upper right cutter shaft 11 being located above the folding roller 2 (21) and Rotating with the folding roller 2 (21); the cutter roller 2 (21) is provided with a cutter corresponding to the cutter shaft, an air suction hole 7 provided on both sides of the cutter, and a V-shaped groove 8 for folding paper. As shown in FIG. 6-8, the groove surface of the V-shaped groove 8 is further provided with an air suction hole 71, and each of the paper folding rollers 2 (21) is provided with a paper feed suction control port 12 and an origami suction on each side. The control port 13, the paper feed suction control port 12 and the origami suction control port 13 are respectively provided with an air valve, which is an independent two air valve, that is, a paper feed suction control port 12 and an origami suction control port. 13 corresponding to the set air valve, the paper feed suction control port 12 corresponding to both sides of the paper folding roller 2 (21) is electrically connected to each other through the air suction passage, the paper folding roller 2 (21) The corresponding origami suction control ports 13 on both sides are also electrically connected to each other through an air suction passage, and the air suction holes are correspondingly connected with the corresponding air suction passages, that is, the air suction holes 71 on the groove surface of the V-shaped groove 8 and the paper suction. The air passages 6 (61) are electrically connected to each other, and the air suction holes 7 disposed on both sides of the cutter are electrically connected to the paper feed suction passages 5 (51). In the embodiment, the air suction passages include three paper feed suction passages 5 (51) and three origami suction passages 6 (61), the paper feed suction passage 5 (51) and the paper feed suction passage 6 (61) are arranged in the folding roller, and communicate with the paper feed suction passage 5 (51) The paper feed suction control port 12 and the origami suction control port 13 connected to the origami suction passage 6 (61) are arranged at equal intervals in the circumferential direction of the roll faces on both sides of the paper folding roller; the paper feed suction passage and the paper suction suction The passages are arranged at equal intervals along the circumferential direction of the folding rollers; the gas valve is composed of a gas chamber closed between the valve body and the roll surface or the end surface of the folding paper roll, and the paper feed air chamber 3 (31) and the origami are formed on both sides of the paper folding roller. The air chamber 4 (41), the air valve includes a paper feed air valve that controls the paper feed suction passage 5 (51) and controls the paper feed air intake 6 (61) origami valve. Thus, the structure in which the paper feed intake control port 12 and the origami suction control port 13 are respectively synchronized with the suction valve are formed. In the embodiment, the paper feed air chamber 3 (31) is disposed on the roller surface, and the paper folding air chamber 4 (41) is disposed at the end surface, and the air suction passage is disposed to penetrate the gas passage inside the paper folding roller in the axial direction, for setting At the suction passage of the suction control port of the roller surface, both ends of the gas passage are sealed, and the roller surface suction control port is vertically disposed on the roller surface of the folding roller and communicates with the gas passage.

 By way of illustration, the two sides of the paper folding roller include end faces on both sides thereof, and further include roller faces on both sides thereof.

As another embodiment of the present invention, the paper feed suction control port 12 and the paper feed suction control port 13 also correspond to the paper feed air chamber 3 (31) and the folding paper chamber 4 (41) mounting position or the installation position of the air valve) The two sides of the paper folding roller may be disposed on the end surface of the paper folding roller, and the paper feeding suction control port 12 and the paper suction control port 13 are arranged along the same circumference or respectively arranged along two circumferences with different radii; or The paper feed suction control port 12 and the paper feed suction control port 13 are respectively disposed on the roller surface of the both ends of the paper folding roller and the end surface of the paper folding roller, that is, the embodiment shown in the above embodiment; or the manner of being disposed on the roller surface; The mounting position of the valve can also vary as described above. The above structure diagram can be seen in Figures 9-10, 12-13

As shown in Fig. 9-10, the roller surface is in two directions of suction and folding in two directions. The paper folding valve and the paper feeding valve are arranged side by side at the two ends of the folding roller, that is, the valve plate passing through the gas valve is in two Two air chambers are formed between the upper and lower sides of the folding paper roller: a paper feeding air chamber at both ends of the upper shaft surface and a folding air chamber at both ends of the lower shaft surface;

12 to FIG. 13 are schematic structural views showing the two directions of the roller surface bidirectional independent suction folding according to the present invention; in the structure, the side portions of the ends of each of the folding rollers are provided with a folding paper valve, and the upper portions of the ends of each of the folding rollers are A paper feed air valve is arranged to form a two-way independent suction and folding paper valve structure of the roller surface.

As shown in FIG. 14 , it is a schematic diagram of the structure of the air distribution ring outside the air suction hole. In order to facilitate the adjustment and installation, a gas distribution ring 101 is sleeved at both ends of the paper folding roller, and the gas distribution ring 101 has a position corresponding to the suction hole. The through hole, the gas distribution ring 101 is fixedly connected to the paper folding roller through the mounting hole, the mounting hole is an adjustable strip hole, and the ribs 102 for installing the air valve are further disposed on both sides of the through hole on the gas distribution ring.

The invention is not limited to the arrangement of three paper feed suction passages and three origami suction passages, and may also be configured as four paper feed suction passages and four origami suction passages or more suction passages.

The invention is not limited to the use of two independent air valves on each side of the folding roller to control the paper feed suction passage and the paper suction suction passage suction structure, as shown in Fig. 11, the same air valve is used to simultaneously control the paper feed suction passage. 5 (51) and the structure of the origami suction passage 6 (61), or a plurality of air valves are used to simultaneously control the structure of each of the paper feed suction passages and the paper feed suction passages.

The above-mentioned embodiments and the accompanying drawings of the present invention are only a part of the preferred embodiments of the present invention, and the present invention is not limited thereto, and any changes made by those skilled in the art can be made without departing from the essence of the invention. It is within the scope of protection of the present invention.

Claims (13)

 1, A method for sucking and releasing gas of a V-shaped box paper towel folding machine, which is characterized in that: a suction control port which is connected with each other at both ends of a paper folding roller with a cutter on a roller surface, is controlled by suction from both ends At the same time, the mouth draws air to form a negative pressure adsorption paper towel, thereby realizing the paper feeding, paper cutting and folding process on the same folding paper roller.
2, The method of absorbing and deflation of a V-shaped tissue paper towel folding machine according to claim 1, wherein the folding paper is formed by alternately absorbing the paper towels by dislocating the suction control ports on the two origami rollers arranged side by side.
 3, The suction and deflation structure of a V-shaped box paper towel folding machine comprises two side-by-side origami rollers and two cutter shafts, and a cutter blade corresponding to the cutter shaft is disposed on the axial direction of the folding paper roller surface, and is arranged in the cutting The air suction hole on both sides of the knife and the V-shaped groove for the paper folding, the V-shaped groove surface is further provided with an air suction hole, wherein each of the paper folding rollers is provided with a paper feeding suction control port and an origami suction on each side of the paper folding roller. The control port, the paper feed suction control port and the origami suction control port are all provided with an air valve, and the corresponding paper feed suction control ports on both sides of the paper roll are electrically connected to each other through the air suction passage, and the corresponding paper or paper on both sides of the paper roll is inhaled. The control ports are also electrically connected to each other through the air suction passages, and the air suction holes are correspondingly connected with the corresponding air suction passages, and the structure of the paper feed suction control ports and the paper feed suction control ports on the two sides of the paper folding roller are respectively synchronized and inhaled.
4. The suction and deflation structure of the V-shaped paper towel folding machine according to claim 3, wherein the air supply control port on each side of the paper folding roller and the air valve provided on the paper suction control port are independent. Two air valves.
The suction and deflation structure of the V-shaped tissue paper towel folding machine according to claim 3 or 4, wherein the air suction passage comprises three paper feed suction passages and three origami suction passages, the paper feed The suction passage and the origami suction passage are arranged at intervals in the folding roller, and the paper feed suction control port connected to the paper feed suction passage and the origami suction control port connected to the paper feed suction passage are arranged at intervals on both sides of the paper folding roller.
The suction and deflation structure of the V-shaped tissue paper towel folding machine according to claim 5, wherein the paper feed suction passage and the paper feed suction passage are arranged at equal intervals along the circumferential direction of the paper folding roller.
The suction and deflation structure of the V-shaped paper towel folding machine according to claim 3 or 4, wherein the paper feed suction control port and the origami suction control port are circumferentially spaced along the roll surface of the paper folding roller. Arranged equally.
The suction and deflation structure of the V-shaped paper towel folding machine according to claim 3 or 4, characterized in that: the paper feeding suction control port and the origami suction control port are arranged on the end surface of the folding paper roller, and are sent The paper suction control port and the origami suction control port are arranged along the same circumference or respectively arranged along two circumferences with different radii.
The suction and deflation structure of the V-shaped paper towel folding machine according to claim 3 or 4, characterized in that: the paper feed suction control port and the origami suction control port are respectively arranged at the rollers at the two ends of the paper folding roller On the face of the face and the paper roll.
The suction and deflation structure of the V-shaped paper towel folding machine according to claim 3 or 4, wherein the gas valve is composed of a gas chamber formed by closing between the valve body and the roll surface or the end surface of the paper folding roller. A paper feed air chamber and a paper folding air chamber are formed at both ends of the paper folding roller. The air valve includes a paper feed air valve for controlling the paper feed suction passage and a paper folding air valve for controlling the paper feed suction passage.
The suction and deflation structure of the V-shaped paper towel folding machine according to claim 10, wherein the paper feeding air valve and the folding paper valve are arranged side by side on the two sides of the folding paper roller to form a two-way up and down gas. Valve suction structure.
The suction and deflation structure of the V-shaped paper towel folding machine according to claim 3 or 4, characterized in that: the paper feeding suction control port on both sides of the paper folding roller is also sleeved with a gas distribution ring, a gas distribution ring There is a through hole corresponding to the position of the suction control port, and the gas distribution ring is fixedly connected with the paper folding roller through the mounting hole, and the installation hole is an adjustable strip hole.
The suction and deflation structure of the V-shaped paper towel folding machine according to claim 3 or 4, wherein the suction passage is provided as a gas passage penetrating the inside of the folding roller in the axial direction, the gas passage The two ends are sealed, and the roller surface suction control port is vertically disposed on the roller surface of the paper folding roller and communicates with the gas passage.
PCT/CN2010/077237 2009-12-15 2010-09-21 Air suction method and structure for v-form packed paper napkin folding machine WO2011072542A1 (en)

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