Energy-saving folding roller and paper folding machine using the same

Abstract

The present invention discloses an energy-saving folding roller and a paper folding machine using the same. The folding roller comprises a folding roller body, in which at least two paper folding air suction channels and a paper cutting air suction channel are arranged, and a core shaft is also included. The folding roller body is sleeved on the outer periphery of the core shaft and can rotate around the core shaft. The core shaft is a hollow tube body with a hollow channel, and at least one end of the hollow channel is connected to an external device. At least one first vent hole and a second vent hole connected to the hollow channel are opened along the length direction of the core shaft surface. The first vent hole cooperates with one of the paper folding air suction channel and the paper cutting air suction channel, and the second vent hole cooperates with two of the paper folding air suction channel and the paper cutting air suction channel. The core shaft is a hollow tube body with a hollow channel. Under the action of the external device, the air in the air suction channel can be quickly drawn out from the vent holes opened along the length direction of the core shaft surface to the hollow channel, which greatly reduces the energy consumption of the external air extraction device and is energy-saving and environmentally friendly.

Description

Technical Field

[0001] The invention relates to the field of paper processing machinery and equipment, in particular to an energy-saving folding roller and a paper folding machine using the same. Background Art

[0002] With the improvement of living standards, people have a growing demand for daily paper, especially for tissue paper. Soft tissue paper and box tissue paper have become necessities for people. For paper manufacturers, the demand for origami equipment has increased accordingly. Existing origami equipment first forms a crease on the base paper and then folds the paper. The crease is usually formed by setting a origami slot and creating a vacuum in the slot to absorb the paper into the slot to form a crease.

[0003] The current paper folding equipment generally has an air ring at both ends of the energy-saving folding roller, wherein the air ring on the left and the air ring on the right respectively exhaust air for the three air channels separated by the energy-saving folding roller and the other three air channels separated by the energy-saving folding roller, so as to achieve the purpose of sucking air from the suction holes set on the energy-saving folding roller. More specifically, the air ring can only suck air from one end of the energy-saving folding roller, which has the disadvantages of insufficient suction volume, inability to meet the need for increased suction volume of large models (due to the increase of energy-saving folding rollers), low production efficiency and poor product quality.

[0004] In order to solve the above problems, as shown in patents No. 201721024991.2, 201010187826.5, 201110275634.4, etc., the current operation is to pass all the air channels through the energy-saving folding roller, and then symmetrically set an air valve structure at both ends to evacuate the air channels at the same time. In this way, not only can the time of sucking the paper towel be shortened and the paper suction speed be accelerated, and the phenomenon of paper towel folding due to uneven suction be avoided, but also, this method of simultaneously sucking air at both ends greatly reduces power consumption compared with the existing one-way suction method.

[0005] Existing energy-saving folding rollers for folding machines for folding paper all adopt a structure similar to that disclosed in the above patent: a plurality of air flow channels are arranged in the roller body, and two groups of vacuum suction ports for paper feeding and folding are respectively arranged on the surface of the roller body, each group of vacuum suction ports are arranged in one or more rows along the length direction of the roller body, and each group of suction ports is respectively connected to the corresponding paper feeding air flow channel and folding air flow channel in the roller body, and then an air flow channel conversion device and an air ring (or air valve) with an air outlet and an air inlet connected to an external exhaust device are coaxially arranged at at least one end of the roller body. As the energy-saving folding roller body rotates, each air flow channel in the roller body is periodically connected or disconnected with the air inlet of the air ring.

[0006] However, this energy-saving folding roller has the following disadvantages: First, since the length of the roller body is about 2 to 3 meters, it takes a lot of energy to vacuum the air flow channel running through the entire energy-saving folding roller by suctioning at both ends. When the vacuum roller runs at high speed, a high-power vacuum pump is required to work continuously, which not only increases production costs and wastes energy, but also seriously restricts the folding speed of the energy-saving folding roller and affects production and processing efficiency; secondly, adding complex structures such as air flow channel conversion devices and air rings at both ends of the energy-saving folding roller increases its manufacturing cost and difficulty in operation and adjustment. Summary of the invention

[0007] The purpose of the present invention is to provide a new energy-saving folding roller and a paper folding machine using the energy-saving folding roller, which can at least solve one of the above problems.

[0008] According to one aspect of the present invention, there is provided an energy-saving folding roller, comprising a folding roller body, in which at least two paper folding air suction channels and at least two paper cutting air suction channels are arranged, and further comprising a core shaft, wherein the folding roller body is sleeved on the outer circumference of the core shaft and can rotate around the core shaft, the core shaft is a hollow tube body having a hollow channel, and at least one end of the hollow channel is connected to an external device, and at least one first air vent and a second air vent connected to the hollow channel are provided along the length direction of the core shaft surface, the first air vent cooperates with one of the paper folding air suction channel and the paper cutting air suction channel, and the second air vent cooperates with two of the paper folding air suction channel and the paper cutting air suction channel.

[0009] Therefore, the present invention provides a folding roller with a brand-new structure. The folding roller does not need to be provided with structures such as air valves or air rings at both ends of the roller body. The structure is simple, the manufacturing cost is low, and the operation and adjustment difficulty is small. The core shaft is provided with two kinds of air outlet holes, the first air vent and the second air vent, and the two are respectively connected to the paper folding air suction channel and the paper cutting air suction channel. With the rotation of the folding roller body, the paper folding air suction channel or the paper cutting air suction channel can be connected with the first air vent or the second air vent, thereby ensuring that the air in different air suction channels is extracted from different air vents, thereby realizing independent control of the air suction channel of the energy-saving folding roller.

[0010] The core shaft of the folding roller of the present invention is provided with a hollow channel running through the entire core shaft, which is connected to an external vacuum device to form a stable vacuum cavity. Under the action of the external device, the air in the suction channel can be quickly extracted from the air holes opened along the length direction of the core shaft surface to the hollow channel, which greatly reduces the energy consumption of the external vacuum device, saves energy and is environmentally friendly, and can greatly improve the folding speed of the folding roller.

[0011] In some embodiments, the first vent hole and the second vent hole are staggered along the rotation direction of the folding roller body, so that as the folding roller body rotates, the paper folding suction channel and the paper cutting suction channel can be connected to different vent holes, thereby achieving independent control of the suction channels.

[0012] In some embodiments, a central opening for mounting the mandrel is provided in the folding roller body, and a third vent hole and a fourth vent hole are provided on the inner wall of the central opening, the third vent hole matches the first vent hole and is connected to one of the paper folding air suction channel and the paper cutting air suction channel, and the fourth vent hole matches the second vent hole and is connected to two of the paper folding air suction channel and the paper cutting air suction channel. Thus, the provision of the third vent hole and the fourth vent hole can ensure that the air in the air suction channel is quickly drawn out to the hollow channel.

[0013] In some embodiments, the first vent hole and the second vent hole are both multiple. Therefore, since the length of the entire core shaft is similar to the length of the folding roller body, both are relatively long, the number of the first vent hole and the second vent hole is multiple, which can significantly shorten the time for the air in the suction channel to be extracted, thereby shortening the time for sucking the paper towel, speeding up the paper suction speed, and making the suction more uniform, which can effectively avoid the phenomenon of paper towel folding caused by uneven suction.

[0014] In some embodiments, the energy-saving folding roller further includes a seal, which is disposed between the folding roller body and the core shaft and surrounds the periphery of the first vent and the second vent. Therefore, the present invention provides a seal between the folding roller body and the core shaft, which can effectively separate the vents, prevent different types of vents or even different vents of the same type from cross-breeding, and thus ensure independent control; more importantly, the seal of the present invention surrounds the periphery of the first vent and the second vent, and when evacuating air, only the area corresponding to the first vent or the second vent is evacuated, and other areas outside the first vent or the second vent are not evacuated, which can greatly shorten the evacuation time and improve the paper suction efficiency.

[0015] In some embodiments, the seals are divided into first seals matching the first vents and second seals matching the second vents, the number of the first seals is the same as the number of the first vents, and the number of the second seals is the same as the number of the second vents.

[0016] In some embodiments, a mounting groove for mounting the seal is provided on the mandrel, and the mounting groove is provided on the periphery of the first vent hole or the second vent hole. Thus, the installation of the mounting groove facilitates the installation and positioning of the seal, and can also play a certain role in limiting the seal.

[0017] In some embodiments, the mounting groove is divided into a first mounting groove for mounting the first sealing member and a second mounting groove for mounting the second sealing member.

[0018] In some embodiments, a plurality of first air suction holes connected to the paper cutting air suction channel and a plurality of second air suction holes connected to the paper folding air suction channel are provided on the surface of the folding roller body, a paper folding groove corresponding to the paper folding air suction channel for adsorbing paper and a knife groove corresponding to the paper cutting air suction channel for installing a cutter are provided on the surface of the folding roller body, the first air suction holes are provided on the periphery of the knife groove, and the second air suction holes are arranged in the paper folding groove and / or on the periphery of the paper folding groove.

[0019] In some embodiments, the suction channels include four paper cutting suction channels and four paper folding suction channels, and the paper cutting suction channels and paper folding suction channels are arranged at intervals in the folding roller body.

[0020] In some embodiments, the paper cutting suction channel and the paper folding suction channel are arranged at equal intervals along the inner circumference of the folding roller body. Therefore, the paper cutting suction channel and the paper folding suction channel of the present invention are distributed on the same circumference, which is the most commonly used distribution method and is convenient for the production of energy-saving folding rollers.

[0021] In some embodiments, the paper folding air suction channel and the paper cutting air suction channel are configured as gas channels that penetrate the interior of the paper folding roller body along the axial direction.

[0022] According to another aspect of the present invention, a paper folding machine is also provided, comprising the above-mentioned energy-saving folding roller, there are two energy-saving folding rollers, namely a first folding roller and a second folding roller, and also comprising a machine body and a first cutting knife roller, a second cutting knife roller, a first paper fork and a second paper fork installed on the machine body, both ends of the first folding roller and the second folding roller are installed on the machine body and the two are arranged side by side, the first cutting knife roller cooperates with the first folding roller, the second cutting knife roller cooperates with the second folding roller, the first paper fork is located below the first folding roller, and the second paper fork is located below the second folding roller.

[0023] Therefore, the paper folding machine of the present invention uses the energy-saving folding roller, which has low production energy consumption and high production efficiency.

[0024] Beneficial effects of the present invention:

[0025] 1. The present invention provides a folding roller with a completely new structure. The folding roller does not need to be provided with structures such as air valves or air rings at both ends of the roller body. The structure is simple, the manufacturing cost is low, and the operation and adjustment difficulty is small. The core shaft is provided with two kinds of air outlet holes, namely the first air vent and the second air vent, and the two are connected to the paper folding air suction channel and the paper cutting air suction channel respectively. With the rotation of the folding roller body, the paper folding air suction channel or the paper cutting air suction channel can be connected to the first air vent or the second air vent, thereby ensuring that the air in different air suction channels is extracted from different air vents, thereby realizing independent control of the air suction channel of the energy-saving folding roller.

[0026] 2. The core shaft of the folding roller of the present invention is provided with a hollow channel running through the entire core shaft, which is connected to the external vacuum equipment to form a stable vacuum cavity. Under the action of the external equipment, the air in the suction channel can be quickly extracted from the vents opened along the length direction of the core shaft surface to the hollow channel, which greatly reduces the energy consumption of the external vacuum equipment, saves energy and is environmentally friendly, and can greatly improve the folding speed of the folding roller.

[0027] 3. The present invention provides a seal between the folding roller body and the core shaft, which can effectively separate the vents, prevent different types of vents or even different vents of the same type from cross-breeding, and thus ensure independent control; more importantly, the seal of the present invention surrounds the outer periphery of the first vent and the second vent, and when air is pumped, only the area corresponding to the first vent or the second vent is pumped, and other areas outside the first vent or the second vent are not pumped, which can greatly shorten the pumping time and improve the paper suction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of an energy-saving folding roller according to one embodiment of the present invention;

[0029] Figure 2 for Figure 1 A schematic side view of the structure of the energy-saving folding roller shown;

[0030] Figure 3 for Figure 2 A schematic cross-sectional structure diagram of the energy-saving folding roller along the AA direction shown;

[0031] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of the energy-saving folding roller along the BB direction is shown;

[0032] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure of the energy-saving folding roller in the CC direction is shown;

[0033] Figure 6 for Figure 3An enlarged structural schematic diagram of the energy-saving folding roller at D shown;

[0034] Figure 7 for Figure 1 A schematic side view of the structure of the folding roller body of the energy-saving folding roller shown;

[0035] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure of the energy-saving folding roller in the EE direction is shown;

[0036] Fig. 9 for Figure 1 A schematic diagram of the three-dimensional structure of the cooperation between the core shaft of the energy-saving folding roller and the sealing member shown;

[0037] Fig.10 for Fig. 9 A schematic diagram of a partially exploded structure of the mandrel shown;

[0038] Fig.11 The figure is a schematic structural diagram of a paper folding machine according to an embodiment of the present invention.

[0039] Figures 1 to 11 Reference numerals in the figure: 1-first cutting knife roller; 2-second cutting knife roller; 3-energy-saving folding roller; 3A-first folding roller; 3B-second folding roller; 4-first paper fork; 5-second paper fork; 6-first paper guide roller; 7-second paper guide roller; 10-paper stock; 20-paper stock; 31-folding roller body; 32-core shaft; 33-seal; 34-end cover; 35-bearing; 33A-first seal; 33B-second Sealing member; 311-paper folding air suction channel; 312-paper cutting air suction channel; 313-third air vent; 314-fourth air vent; 315-center opening; 316-cutter groove; 317-paper folding groove; 318-first air suction hole; 319-second air suction hole; 321-hollow channel; 322-first air vent; 323-second air vent; 324-installation groove; 324A-first installation groove; 324B-second installation groove. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0041] Figures 1 to 10 An energy-saving folding roller according to one embodiment of the invention is schematically shown.

[0042] like Figures 1 to 10As shown, the energy-saving folding roller 3 includes a folding roller body 31. An air suction channel is provided in the folding roller body 31 and an air suction hole connected to the air suction channel is provided on the roller surface. The air suction channel includes at least two paper folding air suction channels 311 and at least two paper cutting air suction channels 312. The paper folding air suction channels 311 and the paper cutting air suction channels 312 are arranged at intervals in the folding roller body 31 and the number is the same.

[0043] The air suction channel of this embodiment includes four paper cutting air suction channels 312 and four paper folding air suction channels 311. The paper cutting air suction channels 312 and the paper folding air suction channels 311 are arranged at intervals in the folding roller body 31. The outer wall of the folding roller body 31 is provided with a cutter groove 316 for installing a cutter for cutting paper and a plurality of V-shaped paper folding grooves 317 for sucking paper. A plurality of first air suction holes 318 connected to the paper cutting air suction channel 312 are provided on the surface of the folding roller body 31 around each cutter groove 316, and a plurality of second air suction holes 319 connected to the paper folding air suction channel 311 are also provided in each paper folding groove 317. The first air suction holes 318 and the second air suction holes 319 are arranged along the length direction of the folding roller body 31. The number of the cutter grooves 316 of this embodiment is the same as the number of the paper cutting air suction channels 312, and the number of the paper folding grooves 317 is the same as the number of the paper folding air suction channels 311.

[0044] The paper cutting air suction channel 312 and the paper folding air suction channel 311 are arranged at equal intervals along the inner circumference of the folding roller body 31. Therefore, the paper cutting air suction channel 312 and the paper folding air suction channel 311 of the present invention are distributed on the same circumference, which is the most commonly used distribution method and is convenient for the production and manufacturing of the energy-saving folding roller 3. The air suction channel is set as a gas channel that penetrates the inside of the paper folding roller body in the axial direction.

[0045] like Figures 1 to 10 As shown, the energy-saving folding roller 3 of the present embodiment further includes a core shaft 32, a bearing 35 and an end cover 34. The folding roller body 31 is sleeved on the outer periphery of the core shaft 32 through the bearing 35 and can rotate around the core shaft 32. The end cover 34 is sleeved on the core shaft 32 and is located at both ends of the folding roller body 31. The core shaft 32 is a hollow tube body having a hollow channel 321, and at least one end of the hollow channel 321 is connected to an external device. Both ends of the core shaft 32 of the present embodiment are connected to external devices, and the external devices include but are not limited to a vacuum pump. At least one first vent hole 322 and a second vent hole 323 connected to the hollow channel 321 are provided along the length direction of the surface of the core shaft 32, as shown in FIG. Figure 9-10As shown, the first vent hole 322 and the second vent hole 323 of this embodiment are in a trumpet shape that expands from small to large outward from the hollow channel 321. The first vent hole 322 cooperates with one of the paper folding air suction channel 311 and the paper cutting air suction channel 312, and the second vent hole 323 cooperates with two of the paper folding air suction channel 311 and the paper cutting air suction channel 312. The first vent hole 322 of this embodiment cooperates with the paper cutting air suction channel 312, and under the action of external equipment, the air in the paper cutting air suction channel 312 is sucked out through the first vent hole 322; the second vent hole 323 cooperates with the paper folding air suction channel 311, and under the action of external equipment, the air in the paper folding air suction channel 311 is sucked out through the second vent hole 323.

[0046] like Figures 9-10 As shown, the first vent holes 322 and the second vent holes 323 are staggered along the rotation direction of the folding roller body 31. The edges of all the first vent holes 322 are on the same axis of the core shaft 32, and the edges of all the second vent holes 323 are on the same axis of the core shaft 32; and the area surrounded by the axis where the edges of the first vent holes 322 are located does not overlap with the area surrounded by the axis where the edges of the second vent holes 323 are located. Therefore, as the folding roller body 31 rotates, it can ensure that the paper folding suction channel 311 and the paper cutting suction channel 312 are connected to different vent holes, thereby realizing independent control of the suction channels.

[0047] like Figures 3 to 8 As shown, a central opening 315 for mounting the core shaft 32 is provided in the folding roller body 31, and a third vent 313 and a fourth vent 314 are provided on the inner wall of the central opening 315. The third vent 313 matches the first vent 322 and is connected to one of the paper folding air suction channel 311 and the paper cutting air suction channel 312, and the fourth vent 314 matches the second vent 323 and is connected to two of the paper folding air suction channel 311 and the paper cutting air suction channel 312. The third vent 313 of this embodiment matches the first vent 322 and is connected to the paper cutting air suction channel 312; the fourth vent 314 matches the second vent 323 and is connected to the paper folding air suction channel 311. The third vent holes 313 of this embodiment are arranged along the length direction of the folding roller body 31, and the number of rows of the third vent holes 313 is the same as the number of the paper cutting suction channel 312; the fourth vent holes 314 are arranged along the length direction of the folding roller body 31, and the number of rows of the fourth vent holes 314 is the same as the number of the paper folding suction channel 311. The number of the third vent holes 313 in each row is the same as the number of the first vent holes 322, and the number of the fourth vent holes 314 in each row is the same as the number of the second vent holes 323. Therefore, the arrangement of the third vent holes 313 and the fourth vent holes 314 can ensure that the air in the suction channel is quickly drawn out to the hollow channel 321.

[0048] There are multiple first vent holes 322 and multiple second vent holes 323. Therefore, they can be set according to the actual length of the folding roller body 31, preferably multiple first vent holes 322 and multiple second vent holes 323 are arranged in an alternating manner. Since the length of the entire core shaft 32 is similar to the length of the folding roller body 31, both are relatively long, the number of the first vent holes 322 and the second vent holes 323 is multiple, which can significantly shorten the time for the air in the suction channel to be extracted, thereby shortening the time for sucking the paper towel, speeding up the paper suction speed, and making the suction more uniform, which can effectively avoid the phenomenon of paper towel folding caused by uneven suction.

[0049] The present invention provides a folding roller with a brand-new structure. The folding roller does not need to be provided with structures such as air valves or air rings at both ends of the roller body. The structure is simple, the manufacturing cost is low, and the operation and adjustment difficulty is small. The core shaft 32 is provided with two kinds of air outlets, namely the first air vent 322 and the second air vent 323, and the two are respectively connected to the paper folding air suction channel 311 and the paper cutting air suction channel 312. With the rotation of the folding roller body 31, the paper folding air suction channel 311 or the paper cutting air suction channel 312 can be connected with the first air vent 322 or the second air vent 323, thereby ensuring that the air in different air suction channels is extracted from different air vents, thereby realizing independent control of the air suction channels of the energy-saving folding roller 3.

[0050] The core shaft 32 of the folding roller of the present invention is provided with a hollow channel 321 which runs through the entire core shaft 32, which is connected to an external vacuum device to form a stable vacuum cavity. Under the action of the external device, the air in the suction channel can be quickly drawn out to the hollow channel 321 from the air holes opened along the length direction of the surface of the core shaft 32, which greatly reduces the energy consumption of the external vacuum device, saves energy and is environmentally friendly, and can greatly improve the folding speed of the folding roller.

[0051] like Fig. 9 and Fig.10 As shown, the energy-saving folding roller 3 of this embodiment further includes a sealing member 33. The sealing member 33 is disposed between the folding roller body 31 and the core shaft 32 and surrounds the outer periphery of the first vent hole 322 and the second vent hole 323.

[0052] The seal 33 is divided into a first seal 33A matching the first vent 322 and a second seal 33B matching the second vent 323. In this embodiment, there are multiple first seals 33A and multiple second seals 33B. The number of the first seals 33A is the same as the number of the first vents 322, and the number of the second seals 33B is the same as the number of the second vents 323. The seal 33 in this embodiment can be a sealing ring, and the sealing ring can be spliced ​​by multiple sections of sealing strips made of rubber or the like.

[0053] The core shaft 32 is provided with a mounting groove 324 for mounting the seal 33, and the mounting groove 324 is provided at the periphery of the first vent hole 322 and the second vent hole 323. Thus, the setting of the mounting groove 324 facilitates the installation and positioning of the seal 33, and at the same time can play a certain limiting role on the seal 33. The mounting groove 324 of this embodiment is divided into a first mounting groove 324A for mounting the first seal 33A and a second mounting groove 324B for mounting the second seal 33B. The number of the first mounting grooves 324A is the same as the number of the first vent holes 322, and the number of the second mounting grooves 324B is the same as the number of the second vent holes 323.

[0054] Therefore, the present invention is provided with a seal 33 between the folding roller body 31 and the core shaft 32, which can effectively separate the vents, prevent different types of vents or even different vents of the same type from being ventilated, and thus ensure independent control; more importantly, the seal 33 of the present invention is surrounded by the outer periphery of the first vent 322 and the second vent 323, and when air is pumped, only the area corresponding to the first vent 322 or the second vent 323 is pumped, and other areas outside the first vent 322 or the second vent 323 are not pumped, so that the pumping time can be greatly shortened and the paper suction efficiency can be improved.

[0055] Fig.11 A paper folding machine according to an embodiment of the present invention is schematically shown. Figure 4 As shown, the paper folding machine includes the above-mentioned energy-saving folding roller 3. There are two energy-saving folding rollers 3, namely a first folding roller 3A and a second folding roller 3B. The paper folding machine also includes a machine body and a first cutting knife roller 1, a second cutting knife roller 2, a first paper fork 4 and a second paper fork 5 installed on the machine body. Both ends of the first folding roller 3A and the second folding roller 3B are installed on the machine body and the two are arranged side by side. The first cutting knife roller 1 cooperates with the first folding roller 3A, and the second cutting knife roller 2 cooperates with the second folding roller 3B. The first paper fork 4 is located below the first folding roller 3A, and the second paper fork 5 is located below the second folding roller 3B. The first paper fork 4 is installed on the machine body through a mounting shaft, and the second paper fork 5 is installed on the machine body through a mounting shaft. The two paper forks are arc-shaped structures made of metal plates or metal rods, and the two paper forks are alternately pressed down under the action of the two mounting shafts.

[0056] The paper folding machine of this embodiment further includes a first paper guide roller 6 and a second paper guide roller 7. The first paper guide roller 6 is arranged on the left side of the first folding roller 3A, and the second paper guide roller 7 is arranged on the right side of the second folding roller 3B. The first paper guide roller 6 and the second paper guide roller 7 are installed on the machine body through bearings. Thus, the first paper guide roller 6 guides the paper stock 10 to the first folding roller 3A, and the second paper guide roller 7 guides the paper stock 20 to the second folding roller 3B, so as to facilitate further processing.

[0057] When the paper folding machine is working, the paper raw materials 10 and 20 are guided by the first paper guide roller 6 and the second paper guide roller 7 respectively, and then adsorbed on the first folding roller 3A and the second folding roller 3B; as the first folding roller 3A and the second folding roller 3B rotate, the cutters 33 on the two energy-saving folding rollers cut with the blades on the first cutting knife roller 1 and the second cutting knife roller 2, and the paper covering the two vacuum energy-saving folding rollers is cut according to a certain length, and then the paper is brought into the folding position for folding, and the folded paper is alternately pressed down by the first paper fork 4 and the second paper fork 5, so that the paper is continuously folded and stacked on the receiving paper board.

[0058] The paper folding machine of the present invention uses the energy-saving folding roller 3, and has low unit production energy consumption and high unit production efficiency.

[0059] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An energy-saving folding roller, comprising a folding roller body (31), wherein the folding roller body (31) is provided with at least two paper folding air suction channels (311) and at least two paper cutting air suction channels (312), characterized in that: The invention also comprises a core shaft (32), wherein the folding roller body (31) is sleeved on the outer periphery of the core shaft (32) and can rotate around the core shaft (32), wherein the core shaft (32) is a hollow tube having a hollow channel (321), and at least one end of the hollow channel (321) is connected to an external device, and at least one first vent hole (322) and a second vent hole (323) connected to the hollow channel (321) are provided along the length direction of the surface of the core shaft (32), wherein the first vent hole (322) is matched with one of the paper folding air suction channel (311) and the paper cutting air suction channel (312), and the second vent hole (323) is matched with two of the paper folding air suction channel (311) and the paper cutting air suction channel (312).

2. The energy-saving folding roller according to claim 1, characterized in that: The first ventilation hole (322) and the second ventilation hole (323) are arranged in a staggered manner along the rotation direction of the folding roller body (31).

3. The energy-saving folding roller according to claim 1, characterized in that: A central opening (315) for mounting a core shaft (32) is provided in the folding roller body (31), and a third vent hole (313) and a fourth vent hole (314) are provided on the inner wall of the central opening (315); the third vent hole (313) matches the first vent hole (322) and is connected to one of the paper folding air suction channel (311) and the paper cutting air suction channel (312); and the fourth vent hole (314) matches the second vent hole (323) and is connected to two of the paper folding air suction channel (311) and the paper cutting air suction channel (312).

4. The energy-saving folding roller according to claim 1, characterized in that: There are multiple first ventilation holes (322) and multiple second ventilation holes (323).

5. The energy-saving folding roller according to claim 1, characterized in that: The invention also comprises a sealing member (33), wherein the sealing member (33) is arranged between the folding roller body (31) and the core shaft (32) and surrounds the outer periphery of the first vent hole (322) and the second vent hole (323).

6. The energy-saving folding roller according to claim 5, characterized in that: The sealing member (33) is divided into a first sealing member (33A) matching the first ventilation hole (322) and a second sealing member (33B) matching the second ventilation hole (323); the number of the first sealing members (33A) is the same as the number of the first ventilation holes (322), and the number of the second sealing members (33B) is the same as the number of the second ventilation holes (323).

7. The energy-saving folding roller according to claim 6, characterized in that: The core shaft (32) is provided with a mounting groove (324) for mounting the sealing member (33), and the mounting groove (324) is provided on the outer periphery of the first vent hole (322) or the second vent hole (323).

8. The energy-saving folding roller according to claim 7, characterized in that: The installation groove (324) is divided into a first installation groove (324A) for installing a first sealing member (33A) and a second installation groove (324B) for installing a second sealing member (33B).

9. The energy-saving folding roller (3) according to claim 1, characterized in that: The surface of the folding roller body (31) is provided with a plurality of first air suction holes (318) connected to the paper cutting air suction channel (312) and a plurality of second air suction holes (319) connected to the paper folding air suction channel (311); the surface of the folding roller body (31) is provided with a paper folding groove (317) corresponding to the paper folding air suction channel (311) for absorbing paper and a knife groove (316) corresponding to the paper cutting air suction channel (312) for installing a cutter; the first air suction holes (318) are provided on the periphery of the knife groove (316), and the second air suction holes (319) are provided in the paper folding groove (317) and / or on the periphery of the paper folding groove (317).

10. A paper folding machine comprising the energy-saving folding roller (3) according to any one of claims 1 to 9, characterized in that: The energy-saving folding rollers (3) are two, namely a first folding roller (3A) and a second folding roller (3B), and further include a machine body and a first cutting knife roller (1), a second cutting knife roller (2), a first paper fork (4) and a second paper fork (5) installed on the machine body. Both ends of the first folding roller (3A) and the second folding roller (3B) are installed on the machine body and are arranged side by side. The first cutting knife roller (1) cooperates with the first folding roller (3A), and the second cutting knife roller (2) cooperates with the second folding roller (3B). The first paper fork (4) is located below the first folding roller (3A), and the second paper fork (5) is located below the second folding roller (3B).

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