Tissue folding device

Abstract

The utility model belongs to the technical field of extraction paper production, and particularly relates to an extraction paper folding device. Comprising a rack and a folding part arranged on the rack, the folding part comprises a horizontally-arranged folding roller, air valves are arranged on the two sides of the folding roller and communicated with a vacuum channel in the folding roller and an external vacuum pump, the vacuum channel in the folding roller is connected with a negative pressure groove, and the negative pressure groove is communicated with an adsorption hole formed in the surface of the folding roller in a penetrating mode. A dust collecting device is arranged on one side of the folding roller and comprises a supporting shaft rod arranged on the machine frame in the length direction of the folding roller, a fixing part is connected to the supporting shaft rod, and a scrap sucking part is arranged on the side, facing the folding roller, of the fixing part. The air flow drives the paper dust in the adsorption holes to be sprayed outwards and collected by the scrap suction component; air supplied into the air valve through the vacuum pump is increased, the air flow drives the paper dust in the adsorption holes to be sprayed out, and meanwhile the scrap suction component is arranged to collect the sprayed paper dust.

Description

TECHNICAL FIELD

[0001] The utility model belongs to paper production technical field, especially relate to a paper folding device. BACKGROUND

[0002] The existing paper is interactive laminated structure, and the folding part of the folding machine is provided with a bottom knife roller and a folding roller. The bottom knife roller and the folding roller are provided with suction holes on the surface. The vacuum channel in the folding roller and the suction holes are communicated to generate negative pressure. The suction holes adsorb the raw paper. While the suction effect is generated, the air suction valve also cleans the paper dust inside the channel. However, the paper dust inside the suction holes cannot be completely cleaned. Even if the air pressure is increased, the effect is very small. The suction holes on the folding roller are often blocked or partially blocked due to the paper dust, which causes the suction force of the folding roller on the raw paper to be insufficient, so that the raw paper cannot be transported to the right position, and the folding effect of the raw paper is poor. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a kind of paper folding devices, to the technical problem existing above, by vacuum pump to the gas valve inside air supply increase, airflow drives the paper dust in suction hole to spray out, while setting up dust suction component to the paper dust that sprays out is collected.

[0004] Therefore, the utility model provides a kind of paper folding device, including frame and the folding component being set on frame, folding component includes the folding roller being horizontally set, folding roller both sides are provided with gas valve, gas valve is connected in vacuum channel of folding roller and external vacuum pump, vacuum channel in folding roller is connected with negative pressure groove, negative pressure groove and the suction hole that is set in the surface of folding roller are communicated, it is characterized in that, the folding roller one side is provided with dust collection device, dust collection device includes the support shaft rod being set on frame along the length direction of folding roller, support shaft rod is connected with fixed component, fixed component is provided with dust suction component towards the folding roller one side, when the paper dust in suction hole is dusted, vacuum pump is supplied to the gas valve inside air supply pressurization, airflow drives the paper dust in suction hole to spray out and be collected by dust suction component.

[0005] In the technical scheme, the folding roller is set on the frame. The working mode of the folding roller controlled by the folding machine in the prior art is a mature prior art, so the connection mode of the folding roller and the frame and the working process are not described. The two horizontally set folding rollers drive the raw paper to move and fold through the surface suction holes. The vacuum channel, the negative pressure groove and the suction hole in the folding roller are all prior arts. In the time period of replacing raw paper or stopping machine, the vacuum pump is used to supply air to the gas valve inside to increase the air pressure. The airflow drives the paper dust in the suction hole to spray out. At the same time, the dust suction component is set to collect the sprayed paper dust. The paper dust in the suction hole is effectively cleaned, so that the suction holes are not blocked or partially blocked, the suction force on the raw paper is not reduced, the raw paper is not transported to the right position, and the folding effect of the raw paper is poor.

[0006] In the above technical solution, further, the fixed component comprises an array of fixedly arranged connecting plates on the support shaft rod, one end of the connecting plate is connected with the support shaft rod, and the other end extends towards the folding roller, and a rib plate is arranged at the bending position of the connecting plate.

[0007] In the above technical solution, further, the dust suction component comprises a fixed plate connected with the fixed component on the same side of the support shaft rod, the fixed plate extends along the axial direction of the folding roller, the fixed plate is fixedly connected with the connecting plate, and an array of dust receiving blocks are arranged on the fixed plate, the dust receiving block is a hollow structure, one end of the dust receiving block faces the folding roller, and the other end is connected with the air suction pump through an air pipe.

[0008] In the above technical solution, further, the dust receiving block comprises a dust receiving cover on the side of the fixed plate facing the folding roller, the dust receiving cover is a hollow 'V' shaped pipe, the dust receiving cover is fixedly connected with the fixed plate, one end of the dust receiving cover is open towards the folding roller, and the other end is provided with a dust discharging nozzle connected with the air suction pump through an air pipe.

[0009] In the above technical solution, the fixed component can provide good support for the dust suction component, and the dust receiving cover is a 'V' shaped pipe, one end of which faces the dust receiving roller, and the dust receiving cover is arranged in an array corresponding to the suction holes on the folding roller, which can effectively collect the paper dust discharged from the suction holes and the paper dust on the surface of the folding roller.

[0010] In the above technical solution, further, a graphite pad is arranged between the air valve and the folding roller.

[0011] In the above technical solution, the graphite pad is arranged between the air suction valve and the folding roller, which can seal and reduce friction and protect the air valve from damage.

[0012] In the above technical solution, further, a cleaning positive pressure groove and a cleaning air release groove are arranged in the folding roller.

[0013] In the above technical solution, the arrangement of the cleaning positive pressure groove and the cleaning air release groove must be consistent with the arrangement of the negative pressure groove and the negative pressure air release groove, and the principle of positive pressure air blowing is used to blow the paper dust in the suction holes out (turned on during the period of replacing the original paper or stopping the machine), which can quickly and effectively clean the paper dust in the small holes.

[0014] In the above technical solution, further, a vacuum breaking positive pressure groove is arranged between the negative pressure groove and the air release groove.

[0015] In the technical solution, the pressure is reduced by the air outlet groove before improvement, and the pressure reduction effect is slow, which affects the matching degree of the frequency of the folding roller to the base paper and the speed in the case of high-speed operation (passive pressure reduction), and the air inlet pressure reduction is added after improvement, and the pressure reduction efficiency is fast and high (active pressure reduction), the electromagnetic valve and the air source are connected to the external air pipe of the vacuum breaking positive pressure groove, which can effectively improve the folding effect, that is, improve the neatness.

[0016] The utility model discloses the beneficial effects are:

[0017] 1. In the time period of changing base paper or stopping, the paper dust in the adsorption hole is sprayed out by the air supply increase to the air valve inside, and the dust suction component is arranged to collect the sprayed paper dust, effectively cleaning the paper dust in the adsorption hole, avoiding the adsorption hole blockage or partial blockage caused by the adsorption force of the base paper, leading to the base paper dragging operation not in place and thus the base paper folding effect is poor.

[0018] 2. The fixing component can support the dust suction component, and the dust collecting cover is a "V" type pipe, one end of which faces the dust collecting roller, and the adsorption holes on the folding roller are arranged in an array, which can effectively collect the paper dust sprayed from the adsorption hole and the paper dust on the surface of the folding roller.

[0019] 3. The cleaning positive pressure groove and the cleaning air outlet groove are arranged in the folding roller, and the sequence of the cleaning positive pressure groove and the cleaning air outlet groove must be consistent with the sequence of the negative pressure groove and the negative pressure air outlet groove, and the principle of positive pressure blowing is used to blow the paper dust in the adsorption hole (turned on during the time period of changing base paper or stopping), which can quickly and effectively clean the paper dust in the small hole.

[0020] 4. It also includes a vacuum breaking positive pressure groove, which is arranged between the negative pressure groove and the air outlet groove. Before improvement, the pressure is reduced by the air outlet groove, and the pressure reduction effect is slow, which affects the matching degree of the frequency of the folding roller to the base paper and the speed in the case of high-speed operation (passive pressure reduction), and after improvement, the air inlet pressure reduction is added before the air outlet groove, and the pressure reduction efficiency is fast and high (active pressure reduction), and the electromagnetic valve and the air source are connected to the external air pipe of the vacuum breaking positive pressure groove, which can effectively improve the folding effect, that is, improve the neatness. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure diagram of the folding component.

[0022] Figure 2 Figure 1 It is a local enlarged view of A in the middle.

[0023] Figure 3 It is a side view of the folding component.

[0024] Figure 4is a sectional view of the folding roller.

[0025] The figure marked as:

[0026] 1, folding roller; 2, air valve; 3, negative pressure groove; 4, adsorption hole; 5, dust collecting device; 6, supporting shaft; 7, fixed part; 8, dust collecting part; 9, connecting plate; 10, rib plate; 11, fixed plate; 12, dust collecting block; 13, dust collecting cover; 14, dust discharging nozzle; 15, graphite pad; 16, cleaning positive pressure groove; 17, cleaning air releasing groove; 18, negative pressure air releasing groove; 19, vacuum breaking positive pressure groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms used herein are only intended to describe the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all the examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so further discussion is not needed in the subsequent drawings once an item is defined in one drawing.

[0029] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not intended to describe a specific order or chronological sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second" and the like are generally a class, and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents a "or" relationship between the front and rear associated objects.

[0030] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0031] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0032] First embodiment:

[0033] like Figures 1-3 As shown, this embodiment provides a paper folding device, including a frame and a folding component mounted on the frame. The folding component includes a horizontally arranged folding roller 1. Air valves 2 are arranged on both sides of the folding roller 1. The air valves 2 are connected to a vacuum channel inside the folding roller 1 and an external vacuum pump. The vacuum channel inside the folding roller 1 is connected to a negative pressure groove 3. The negative pressure groove 3 is connected to an adsorption hole 4 through the surface of the folding roller 1. The feature is that a dust collection device 5 is arranged on one side of the folding roller 1. The dust collection device 5 includes a support shaft 6 arranged on the frame along the length direction of the folding roller 1. A fixing component 7 is connected to the support shaft 6. A dust suction component 8 is arranged on the side of the fixing component 7 facing the folding roller 1. When removing paper dust in the adsorption hole 4, the vacuum pump supplies air to the inside of the air valve 2 to increase the pressure. The airflow drives the paper dust in the adsorption hole 4 to be sprayed out and collected by the dust suction component 8.

[0034] The folding roller 1 is arranged on the frame. The existing technology of the folding machine controlling the working mode of the folding roller 1 is mature, and thus the connection mode of the folding roller 1 and the frame and the working process are not described in detail. The two horizontally arranged folding rollers 1 drive the base paper to move and fold through the surface suction holes 4. The folding roller 1 is provided with a vacuum channel, a negative pressure groove 3 and a suction hole 4, which are all prior art. In the time period of changing the base paper or stopping the machine, the air supply to the air valve 2 is increased through the vacuum pump, the airflow drives the paper dust in the suction hole 4 to be sprayed outwards, and at the same time, the dust suction component 8 is arranged to collect the sprayed paper dust, effectively cleaning the paper dust in the suction hole 4, avoiding the suction hole 4 from being blocked or partially blocked, causing the suction force on the base paper to decrease, causing the base paper to be not transported in place, and thus the folding effect of the base paper is poor.

[0035] The fixing component 7 includes an array of connecting plates 9 fixedly arranged on the support shaft 6. One end of the connecting plate 9 is connected to the support shaft 6, and the other end is bent and extended towards the folding roller 1. The connecting plate 9 is provided with a rib plate 10 at the bent portion.

[0036] The dust suction component 8 includes a fixed plate 11 connected to the fixing component 7 on the same side of the support shaft 6. The fixed plate 11 extends in the axial direction of the folding roller 1. The fixed plate 11 is fixedly connected to the connecting plate 9. The fixed plate 11 is provided with an array of dust receiving blocks 12. The dust receiving block 12 is a hollow structure. One end of the dust receiving block 12 faces the folding roller 1, and the other end is connected to the air suction pump through an air pipe.

[0037] As shown in Figure 3 , the dust receiving block 12 includes a dust receiving cover 13 on the side of the fixed plate 11 facing the folding roller 1. The dust receiving cover 13 is a hollow "V"-shaped pipe. The dust receiving cover 13 is fixedly connected to the fixed plate 11. One end of the dust receiving cover 13 is open and faces the folding roller 1. The other end is provided with a dust discharge nozzle 14 connected to the air suction pump through an air pipe.

[0038] The fixing component 7 can provide good support for the dust suction component 8. The dust receiving cover 13 is a "V"-shaped pipe with one end facing the dust receiving roller. Specifically, the dust receiving holes 4 on the folding roller 1 are arranged in an array. The dust receiving cover 13 can effectively collect the paper dust sprayed out of the dust receiving holes 4 and the paper dust on the surface of the folding roller 1 when cleaning the dust receiving holes 4.

[0039] As shown in Figure 2 , a graphite gasket 15 is arranged between the air valve 2 and the folding roller 1. The graphite gasket 15 is arranged between the air suction valve and the folding roller 1 to play a sealing role, reduce friction and protect the air valve 2 from damage.

[0040] A cleaning positive pressure groove 16 and a cleaning air release groove 17 are arranged in the folding roller 1.

[0041] Second embodiment:

[0042] The embodiment provides a paper extraction and folding device, and has the following technical features in addition to the technical solutions in the above embodiment.

[0043] As shown in Figure 4 The order of the cleaning positive pressure tank 16 and the cleaning air release tank 17 must be consistent with the order of the negative pressure tank 3 and the negative pressure air release tank 18, the principle of positive pressure blowing is used to blow the paper dust in the suction orifice out (turned on during the time period of changing the original paper or stopping), and the paper dust in the orifice can be quickly and effectively cleaned.

[0044] The third embodiment

[0045] The embodiment provides a paper extraction and folding device, and has the following technical features in addition to the technical solutions in the above embodiment.

[0046] As shown in Figure 4 The vacuum breaking positive pressure tank 19 is arranged between the negative pressure tank 3 and the air release tank. Before the improvement, the air release tank is used for pressure reduction, the pressure reduction effect is slow, and in the case of high-speed operation, the matching degree of the suction and release frequency of the folding roller 1 to the vehicle speed is affected (passive pressure reduction). After the improvement, the air inlet pressure reduction is added, the air inlet pressure reduction is performed before the air release tank releases air, the pressure reduction efficiency is high (active pressure reduction), the vacuum breaking positive pressure tank 19 is connected with an electromagnetic valve and an air source through an external air pipe, and the folding effect can be effectively improved, that is, the neatness is improved.

[0047] The embodiments of the application are described above in combination with the drawings, the embodiments and the features in the embodiments in the application can be combined with each other in the case of no conflict, the application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative but not restrictive, and a person skilled in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the protection range of the claims, and all the forms belong to the protection of the application.

Claims

1. A paper towel folding device, comprising a frame and a folding component arranged on the frame, the folding component comprising a horizontally arranged folding roller (1), a gas valve (2) arranged on both sides of the folding roller (1), the gas valve (2) being connected to a vacuum passage in the folding roller (1) and an external vacuum pump, a negative pressure groove (3) connected to the vacuum passage in the folding roller (1), and a suction hole (4) arranged on the surface of the folding roller (1) and connected to the negative pressure groove (3), characterized in that, The folding roller (1) is provided with a dust collection device (5) on one side, the dust collection device (5) includes a support shaft (6) provided on the rack along the length direction of the folding roller (1), the support shaft (6) is connected with a fixed part (7), the fixed part (7) is provided with a dust suction part (8) on the side of the folding roller (1), when the paper dust in the adsorption hole (4) is removed, the vacuum pump supplies air to the inside of the air valve (2) to increase the pressure, and the air flow drives the paper dust in the adsorption hole (4) to be sprayed outwards and collected by the dust suction part (8).

2. A paper sheet folding apparatus according to claim 1, wherein The fixed part (7) includes a connecting plate (9) fixedly arranged on the support shaft (6) in an array, one end of the connecting plate (9) is connected with the support shaft (6), and the other end is bent and extended towards the folding roller (1), and a rib plate (10) is arranged at the bending position of the connecting plate (9).

3. A paper sheet folding apparatus according to claim 2, wherein The dust suction part (8) includes a fixed plate (11), the fixed plate (11) is connected with the fixed part (7) on the same side of the support shaft (6), the fixed plate (11) extends along the axial direction of the folding roller (1), the fixed plate (11) is fixedly connected with the connecting plate (9), and a plurality of dust receiving blocks (12) are arranged on the fixed plate (11) in an array, the dust receiving block (12) is a hollow structure, one end of the dust receiving block (12) faces the folding roller (1), and the other end is connected with a suction pump through an air pipe.

4. A paper sheet folding apparatus according to claim 3, wherein The dust receiving block (12) includes a dust receiving cover (13) on the side of the fixed plate (11) facing the folding roller (1), the dust receiving cover (13) is a hollow "V"-shaped pipe, the dust receiving cover (13) is fixedly connected with the fixed plate (11), one end of the dust receiving cover (13) is open and faces the folding roller (1), and the other end is provided with a dust discharge nozzle (14), and the dust discharge nozzle (14) is connected with the suction pump through an air pipe.

5. A paper towel folding device according to any one of claims 1-4, wherein, The graphite pad (15) is arranged between the air valve (2) and the folding roller (1).

6. A paper sheet folding apparatus according to claim 1, wherein The cleaning positive pressure groove (16) and the cleaning air release groove (17) are arranged in the folding roller (1).

7. A paper sheet folding apparatus according to claim 1, wherein The vacuum breaking positive pressure groove (19) is arranged between the negative pressure groove (3) and the air release groove.

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