Gas position structure of tissue folding machine

Abstract

The utility model relates to the field of extraction paper production equipment, in particular to an air position structure of an extraction paper folding machine, which comprises at least two folding rollers arranged mutually, at least two groups of air suction channels communicated with two ends of the folding rollers are arranged on the folding rollers along the axial direction, and air suction holes communicated with the air suction channels are arranged on the roller surfaces of the folding rollers; the folding roller is provided with air chamber mandrels, the air chamber mandrels are installed at the two ends of the folding roller respectively and rotate along with the folding roller, expansion cavities are formed in the air chamber mandrels, and the expansion cavities are communicated with the air suction channel and used for expanding the air volume at the position of an end opening of the air suction channel. According to the folding roller, the air at the air suction channel in the folding roller flows to the expansion chamber, the storage amount of the air can be increased through expansion of the expansion chamber, more air can be extracted by matching with the air extraction fan, so that the folding roller has good adsorption capacity, and the air extraction efficiency of the air extraction fan is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper production equipment field especially is involved in a kind of air level structure of paper folding machine. BACKGROUND

[0002] Extraction folding machine is in the production paper process, by two folding rollers mutually coordinated rotation, several suction paper suction air holes are provided at the roller face of folding roller, by two folding rollers mutually staggered rotation, so that paper can be stacked into shape at folding roller.

[0003] Chinese utility model patent (grant announcement number: CN201483828U) discloses a kind of paper towel folding machine's folding roller suction paper mechanism, including two parallel folding rollers, the surface of each folding roller is provided with multiple suction air ports of suction paper, the inside of folding roller is provided with airflow passage communicated with suction air port, the two end faces of folding roller are each close to a wind cover, wind cover is provided with air inlet and air outlet, air outlet is connected with suction equipment, wind cover is connected on rack and does not rotate with folding roller, its characteristics are that the airflow passage communicated with each suction air port of folding roller all penetrates to the two end faces of folding roller, and for the same airflow passage, the port of airflow passage on two end faces can simultaneously correspond with the air inlet of two wind covers, the same suction air port on folding roller is suctioned from the two end faces of folding roller.

[0004] However, in actual use process, the suction output end of suction fan is directly connected with airflow passage at the two ends of folding roller to carry out suction, since the port diameter of airflow passage at the two ends of folding roller is too small, the flow of gas in the two ends of folding roller is small, so that the suction efficiency of suction fan is low, and in order to ensure that folding roller has good suction effect on paper, high-power suction fan is often needed to meet the requirements. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing the technical scheme of the air level structure of paper folding machine to solve the above problems.

[0006] An air level structure of paper folding machine, the air level structure includes at least two folding rollers arranged with each other, the folding roller is opened at least two groups of suction air channels communicated with the two ends of the folding roller along the axial direction, the roller surface of the folding roller is opened with suction air hole communicated with the suction air channel;

[0007] The folding roller is provided with air chamber mandrel, the air chamber mandrel is respectively mounted at the two ends of the folding roller and rotates with the folding roller, the air chamber mandrel is provided with expansion chamber, and the expansion chamber is communicated with the suction air channel and used to expand the gas volume at the port of the suction air channel.

[0008] As a further scheme of the utility model: the cross section area of the expansion chamber is not less than the cross section area of the air suction passage.

[0009] As a further scheme of the utility model: the air chamber mandrel is equipped with at least two expansion chambers.

[0010] As a further scheme of the utility model: the expansion chambers are arranged in the air chamber mandrel in a circumferential equidistant manner.

[0011] As a further scheme of the utility model: the air level structure further includes a folding air chamber, the folding air chamber is a hollow structure, the folding air chamber is arranged at both ends of the folding roller respectively, and the folding air chamber can be connected to the expansion chambers at intervals when the air chamber mandrel rotates.

[0012] As a further scheme of the utility model: the folding air chamber is provided with a connecting through hole, the air chamber mandrel is rotatably installed in the connecting through hole, at least two air outlet notches are formed on the outer shaft surface of the air chamber mandrel, the air outlet notches are connected to the expansion chambers, and an air suction notch is formed on the hole wall of the connecting through hole and connected to the hollow interior of the folding air chamber.

[0013] As a further scheme of the utility model: the air outlet notches are arranged on the outer shaft surface of the air chamber mandrel in a circumferential equidistant manner.

[0014] As a further scheme of the utility model: the folding air chamber is further provided with at least one group of air extraction holes, and the air extraction holes are connected to the hollow interior of the folding air chamber.

[0015] As a further scheme of the utility model: two groups of air extraction holes are formed on the side surface of the folding air chamber and connected to the hollow interior of the folding air chamber.

[0016] As a further scheme of the utility model: the two ends of the folding roller are further respectively provided with paper breaking air suction devices, the paper breaking air suction device includes a paper breaking mandrel and a paper breaking air chamber, the paper breaking mandrel is installed between the air chamber mandrel and the end of the folding roller, at least two groups of air guide holes are formed on the paper breaking mandrel and connected to the air suction passage and the expansion chamber, the paper breaking mandrel rotates synchronously with the folding roller, the paper breaking air chamber is a hollow structure, the paper breaking air chamber is provided with a connecting through slot, and the paper breaking mandrel is rotatably installed in the connecting through slot.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. By setting air chamber mandrel at both ends of the folding roller respectively, expanding chamber communicates with air suction channel, the gas at the air suction channel of the folding roller flows to the expanding chamber, and the storage capacity of the gas can be increased by the expansion of the expanding chamber, and more gas can be extracted by the air extractor, so that the folding roller has good adsorption, and the air extraction efficiency of the air extractor is improved.

[0019] 2. The gas volume of the expanding chamber can be further expanded by the folding air chamber, so that the working efficiency of the air extractor is improved, and further, good air extraction effect can be achieved under the condition of reducing the power of the air extractor, and by the air level structure, the folding roller can achieve good folding effect by using low-power air extractor, which can effectively save electricity and reduce manufacturing cost.

[0020] 3. The air level structure can improve the extraction efficiency of the motor and install two air extractors, so that the air extraction effect is further enhanced, the suction force of the air suction hole of the folding roller is stronger, and the crease of the produced paper can be more obvious.

[0021] The additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description or be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0023] Figure 1 is a folding roller structure schematic view of the present application.

[0024] Figure 2 is a folding roller sectional view schematic view of the present application.

[0025] Figure 3 is Figure 2 the local enlarged schematic view of A in the figure.

[0026] Figure 4 is a gas chamber mandrel structure schematic view of the present application.

[0027] Figure 5 is a gas chamber mandrel top view of the present application.

[0028] Figure 6 is Figure 5 the structure schematic view of A-A in the figure.

[0029] Figure 7 is a folding air level structure schematic diagram of the utility model.

[0030] Figure 8 is an air level structure exploded schematic diagram of the utility model.

[0031] Figure 9 is a folding roller top view of the utility model.

[0032] Figure 10 is Figure 9 is a section view at B-B.

[0033] Figure 11 is a suction gap structure schematic diagram of the utility model.

[0034] Figure 12 is Figure 9 is a section view at C-C.

[0035] Figure 13 is a folding roller exploded schematic diagram of the utility model.

[0036] In the figure: 1-folding roller, 11-suction passage, 12-suction hole, 2-air chamber mandrel, 21-expansion chamber, 22-outlet gap, 3-folding air chamber, 31-connection through hole, 32-suction gap, 33-exhaust hole, 4-exhaust fan, 5-paper breaking suction device, 51-paper breaking mandrel, 52-paper breaking air chamber, 511-air guide hole, 521-connection through slot, 5211-first gap, 512-second gap, 513-first connection hole 513, 211-second connection hole. DETAILED DESCRIPTION

[0037] The technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0038] In the description of the embodiments of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0039] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically limited.

[0040] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] Please refer to Figures 1-6 In the embodiments of the present application, a gas level structure of a paper towel folding machine, the gas level structure comprises at least two folding rollers 1 arranged in parallel, the folding roller 1 is provided with at least two groups of air suction channels 11 communicating the two ends of the folding roller 1 in the axial direction, the roller surface of the folding roller 1 is provided with air suction holes 12 for adsorbing paper towels, the two folding rollers 1 are respectively rotated towards the gap direction between the parallel arrangement to make the paper towels fall; the folding roller 1 is provided with a gas chamber shaft 2, the gas chamber shaft 2 is respectively installed at the two ends of the folding roller 1 and rotates with the folding roller 1, the gas chamber shaft 2 is provided with an expansion chamber 21, and the expansion chamber 21 communicates with the air suction channel 11 and is used for expanding the gas volume at the port of the air suction channel 11.

[0042] Specifically, the folding rollers 1 are cooperatively rotated to fold and fall the paper towels from the gap between the two folding rollers 1 (i.e. the middle of the two folding rollers 1), and the roller surface of the folding roller 1 is provided with a plurality of air suction holes 12 arranged in the axial direction to the two ends of the folding roller 1. When the left folding roller 1 rotates clockwise, the air suction hole 12 adsorbs the paper towel, and when the paper towel is rotated to the horizontal position, the left folding roller 1 closes the air suction, and one half of the paper towel falls to the component for supporting the paper towel. The right folding roller 1 adsorbs the other half of the paper towel through the air suction hole 12, and the folding roller 1 rotates counterclockwise to drive the paper towel to move to the horizontal position and close the air suction, at this time, the paper towel completes a stacking.

[0043] The working principle of the embodiment is as follows: the air chamber shaft 2 is arranged at both ends of the folding roller 1, the expansion chamber 21 is communicated with the air suction channel 11, the gas in the air suction channel 11 of the folding roller 1 flows to the expansion chamber 21, the storage capacity of the gas is increased through the expansion of the expansion chamber 21, more gas can be extracted by the air extractor 4, and therefore the folding roller 1 has good adsorption force.

[0044] Further as Figures 4-6 shown in the embodiment of the utility model, the cross-sectional area of the expansion chamber 21 is not less than the cross-sectional area of the air suction channel 11, the air chamber shaft 2 is provided with at least two expansion chambers 21, and the expansion chambers 21 are arranged in the air chamber shaft 2 at equal intervals in the circumferential direction. The expansion chamber 21 can expand the gas and improve the working efficiency of the air extractor 4. The storage capacity of the gas can be increased through the expansion of the expansion chamber 21, and the air extraction efficiency is improved.

[0045] Further as Figures 1-2 , Figures 7-11 and Figure 13 shown in the embodiment of the utility model, the air level structure further comprises a folding air chamber 3, the folding air chamber 3 is a hollow structure, the folding air chamber 3 is arranged at both ends of the folding roller 1, the folding air chamber 3 is communicated with the expansion chamber 21 at intervals when the air chamber shaft 2 rotates, the folding air chamber 3 is provided with a connecting through hole 31, the air chamber shaft 2 is rotatably installed in the connecting through hole 31, at least two air outlet notches 22 are formed in the outer shaft surface of the air chamber shaft 2, the air outlet notches 22 are communicated with the expansion chamber 21, the hole wall of the connecting through hole 31 is provided with an air suction notch 32, and the air suction notch 32 is communicated with the hollow interior of the folding air chamber 3.

[0046] The working principle of the embodiment is as follows: the folding air chamber 3 is sleeved with the air chamber shaft 2 through the connecting through hole 31, the air chamber shaft 2 rotates at the connecting through hole 31, and in the rotating process of the air chamber shaft 2, the air outlet gap 22 and the air inlet gap 32 correspond to each other, at this time, the air inlet gap 32 can communicate with the air outlet gap 22, that is, the folding air chamber 3 is connected with the expansion chamber 21, and the gas in the expansion chamber 21 can further expand the gas volume at both ends of the folding roller 1. When the folding air chamber 3 is installed with the air extractor 4, the air extractor 4 can extract more gas, the air extractor 4 can extract more gas, and the adsorption effect of the folding roller 1 is more obvious. When the air chamber shaft 2 rotates, the air outlet gap 22 and the air inlet gap 32 are communicated, at this time, the air at both ends of the folding roller 1 can be sucked, and when the air outlet gap 22 and the air inlet gap 32 do not correspond to each other, the folding chamber cannot be connected with the expansion chamber 21, so that the folding air chamber 3 can be connected with the expansion chamber 21 at intervals when the air chamber shaft 2 rotates. The expansion chamber 21 is equivalent to the first buffer zone, the folding air chamber 3 is equivalent to the second buffer zone when the folding air chamber 3 is connected with the expansion chamber 21, and the gas volume can be further expanded. By arranging the expansion chamber and the folding air chamber 3, the load of the air extractor 4 can be reduced, the motor power can be reduced while ensuring the adsorption effect of the folding roller 1, energy consumption can be saved, and production cost is reduced.

[0047] Further as Figures 4-11 shown, in the embodiment of the utility model, the air outlet gap 22 is arranged on the outer shaft surface of the air chamber shaft 2 in circumferential equidistant.

[0048] Further as Figures 7-11 and Figure 13 shown, in the embodiment of the utility model, the folding air chamber 3 is further provided with at least one group of air extraction holes 33, and the air extraction holes 33 communicate with the hollow interior of the folding air chamber 3. The air extraction holes 33 are used for installing the output end of the air extractor 4.

[0049] The gas volume of the expansion chamber 21 can be further expanded through the folding air chamber 3, so that the working efficiency of the air extractor 4 is improved, and further, in the case that the power of the air extractor 4 is reduced, a good air extraction effect can be achieved. In the prior art, the folding roller 1 at both ends of the folding machine usually adopts a 45kw air extractor 4 to extract air, and by designing the air level structure, a 25kw air extractor 4 can also make the folding roller 1 achieve the same adsorption and folding effect, so that the power consumption is effectively saved, and the manufacturing cost is reduced.

[0050] Further as Figures 7-13As shown in the utility model embodiment, two groups of air extraction holes 33 are arranged on the side surface of the folding air chamber 3, the air extraction holes 33 are communicated with the hollow interior of the folding air chamber 3, the folding air chamber 3 is provided with an air extraction fan 4, and the output end of the air extraction fan 4 is connected with the air extraction holes 33 for extracting air. The folding air chamber 3 can be provided with two air extraction fans 4 which are respectively arranged on the air extraction holes 33, so that the adsorption effect of the folding roller 1 on the paper towel is enhanced, and the folding creases of the paper towel are more obvious. The type of the air extraction fan 4 can be a Roots vacuum pump, a fixed-vane vacuum pump, a liquid ring vacuum pump or the like.

[0051] Further as Figures 1-2 and Figures 9-13 As shown in the utility model embodiment, the two ends of the folding roller 1 are further respectively provided with a paper breaking air suction device 5, the paper breaking air suction device 5 comprises a paper breaking shaft 51 and a paper breaking air chamber 52, the paper breaking shaft 51 is arranged between the air chamber shaft 2 and the end of the folding roller 1, the paper breaking shaft 51 is provided with at least two groups of air guide holes 511 which are correspondingly communicated with the air suction channel 11 and the expansion chamber 21, the paper breaking shaft 51 rotates synchronously with the folding roller 1, the paper breaking air chamber 52 has a hollow internal structure, the paper breaking air chamber 52 is provided with a connecting through slot 521, the paper breaking shaft 51 is rotatably arranged in the connecting through slot 521, and the air guide holes 511 are intermittently communicated with the paper breaking air chamber 52.

[0052] Specifically, a first notch 5211 is arranged on the inner wall of the connecting through slot 521, at least two groups of second notches are arranged on the outer shaft surface of the paper breaking shaft 51 close to the air guide holes 511, when the paper breaking shaft 51 rotates synchronously with the folding roller 1, the first notch 5211 corresponds to the second notch, at this time, the air guide holes 511 are communicated with the interior of the paper breaking air chamber 52, when the paper breaking shaft rotates, the first notch 5211 does not correspond to the second notch, at this time, the air guide holes 511 cannot be communicated with the interior of the paper breaking air chamber 52, so that the air guide holes 511 can intermittently communicate with the paper breaking air chamber 52 when the paper breaking shaft 51 rotates.

[0053] The mode that the air guide holes 511 can be communicated with the air suction channel 11 and the expansion chamber 21 can adopt the following method: first connecting holes 513 are arranged on the two end surfaces of the paper breaking shaft 51 and are communicated with the air guide holes 511, so that the first connecting hole 513 of one end surface of the paper breaking shaft 51 is communicated with the air suction channel 11, and second connecting holes 211 are arranged on the end surface of the expansion chamber 21 close to the paper breaking shaft 51, so that the first connecting hole 513 of the other end surface of the paper breaking shaft 51 is communicated with the expansion chamber 21.

[0054] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than by the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. An air level structure of a paper towel folding machine, characterized by comprising: The air level structure comprises at least two mutually arranged folding rollers (1), the folding rollers (1) are provided with at least two groups of air suction channels (11) which are communicated with both ends of the folding rollers (1) in the axial direction, and the roller surface of the folding rollers (1) is provided with air suction holes (12) which are communicated with the air suction channels (11); The folding rollers (1) are provided with air chamber shafts (2), the air chamber shafts (2) are respectively installed at both ends of the folding rollers (1) and rotate with the folding rollers (1), and the air chamber shafts (2) are provided with expansion chambers (21) which are communicated with the air suction channels (11) and used for expanding the gas volume at the port of the air suction channels (11).

2. The gas level structure of claim 1, wherein, The cross-sectional area of the expansion chamber (21) is not less than the cross-sectional area of the air suction channel (11).

3. The gas lift structure of claim 1, wherein, The air chamber shaft (2) is provided with at least two expansion chambers (21).

4. The gas lift structure of claim 3, wherein, The expansion chambers (21) are arranged in the air chamber shaft (2) in a circumferential equidistant manner.

5. The gas lift structure of claim 4, wherein, The air level structure further comprises folding air chambers (3), the folding air chambers (3) are hollow structures, the folding air chambers (3) are respectively arranged at both ends of the folding rollers (1), and the folding air chambers (3) are intermittently communicated with the expansion chambers (21) when the air chamber shafts (2) rotate.

6. The gas lift structure of claim 5, wherein, The folding air chambers (3) are provided with connecting through holes (31), the air chamber shafts (2) are rotatably installed in the connecting through holes (31), the outer shaft surface of the air chamber shafts (2) is provided with at least two air outlet notches (22), the air outlet notches (22) are communicated with the expansion chambers (21), the hole wall of the connecting through holes (31) is provided with air suction notches (32), and the air suction notches (32) are communicated with the hollow interior of the folding air chambers (3).

7. The gas lift structure of claim 6, wherein, The air outlet notches (22) are arranged on the outer shaft surface of the air chamber shaft (2) in a circumferential equidistant manner.

8. The gas lift structure of claim 5, wherein, The folding air chambers (3) are further provided with at least one group of air extraction holes (33), and the air extraction holes (33) are communicated with the hollow interior of the folding air chambers (3).

9. The gas lift structure of claim 5, wherein, The side surface of the folding air chamber (3) is provided with two groups of air extraction holes (33), and the air extraction holes (33) are communicated with the hollow interior of the folding air chamber (3).

10. The gas lift structure of claim 1, wherein, The two ends of the folding roller are further respectively provided with paper breaking air suction devices (5), the paper breaking air suction devices (5) comprise paper breaking shafts (51) and paper breaking air chambers (52), the paper breaking shafts (51) are installed between the air chamber shafts and the end portions of the folding rollers, the paper breaking shafts (51) are provided with at least two groups of air guide holes (511) which are correspondingly communicated with the air suction channels and the expansion chambers, the paper breaking shafts (51) rotate synchronously with the folding rollers, the paper breaking air chambers (52) are hollow structures, the paper breaking air chambers (52) are provided with connecting through grooves (521), the paper breaking shafts (51) are rotatably installed in the connecting through grooves (521), and the air guide holes (511) are intermittently communicated with the paper breaking air chambers (52).

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