Air exhaust part and multi-section air exhaust energy-saving paper folding roller

Abstract

The multi-section air exhaust energy-saving paper folding roller comprises a paper folding roller body and the air exhaust part, the paper folding roller body is provided with a plurality of annular grooves, an air channel is formed in the paper folding roller body, the air exhaust part is provided with a side hole, an air outlet channel is formed in the air exhaust part, the air outlet channel is communicated with the side hole, and the annular grooves are communicated with the air exhaust part. Air exhaust pieces are installed on the annular grooves in a one-to-one correspondence and relative rotation mode, air flow channels are formed in the side walls of the annular grooves and communicate with the air channels, and the air exhaust pieces are driven to rotate along with relative rotation between the paper folding roller body and the air exhaust pieces. And the air flow channel on each annular groove can be intermittently opposite to and communicated with the side hole of the air exhaust piece mounted on the annular groove. The problems that when the whole paper folding roller body is subjected to air extraction through a traditional single vacuumizing device, the air extraction difference of all parts of the paper folding roller body is large, and air extraction in part positions is slow in response and the like can be solved, the requirement for the power of the single vacuumizing device is low, and energy consumption is effectively reduced.

Description

Technical Field

[0001] The invention relates to the field of paper processing equipment design, in particular to an air extraction component and a multi-stage air extraction energy-saving paper folding roller. Background Art

[0002] In current paper-pulling systems, paper is typically placed in a folded form within a packaging box, and the folding of paper often relies on the use of a folding roller. A common folding roller has multiple folding grooves on its surface, and multiple air extraction holes are provided on both sides of the roller body for extracting air. The multiple air extraction holes are connected to the multiple folding grooves in a one-to-one correspondence. During use, an external vacuum device is used to evacuate the air extraction holes, allowing the paper to be partially sucked onto the folding grooves to achieve folding.

[0003] However, in order to improve work efficiency, the upper limit of the width of the original paper processed at one time is getting larger and larger, and the corresponding folding roller length is also getting longer and longer. In this case, vacuum is only performed from the two sides of the folding roller. Since the folding groove in the middle of the folding roller body is quite different from the two sides of the folding roller, the timing of the folding action of the paper on the folding groove in the middle of the folding roller body will be very different. This may easily lead to the paper being unable to be effectively folded or even twisted, affecting the quality of the folded product.

[0004] On the other hand, for large origami rollers with long lengths, vacuum is directly drawn from both sides. In order to effectively evacuate the holes on each slot in the middle of the origami roller body, the power demand of the vacuum device is high and the energy consumption is relatively serious. Summary of the Invention

[0005] The object of the present invention is to provide a multi-stage air extraction energy-saving paper folding roller that can solve one or more of the above problems.

[0006] According to one aspect of the present invention, there is provided an air extraction member comprising a main body and an air outlet pipe.

[0007] An air cavity is provided in the main body, and a side hole is provided on the side of the main body, and the air cavity is connected to the side hole.

[0008] One end of the air outlet pipe is connected to the top of the main body, and an air outlet channel is provided on the air outlet pipe, and the air outlet channel is communicated with the air cavity.

[0009] In some embodiments, the main body is provided with a reinforcing rib in the side hole, and the reinforcing rib is provided with a through hole. The provision of the reinforcing rib can improve the strength of the vacuum element, while the provision of the through hole can reduce the obstruction of the reinforcing rib to the airflow during vacuuming, thereby ensuring effective vacuuming.

[0010] In some embodiments, the main body is arc-shaped and has a notch. The arc-shaped air extraction member facilitates the effective installation of the air extraction member with the paper folding roller, and the notch can effectively avoid the movement of other workpieces.

[0011] According to one aspect of the present invention, a multi-stage air-extraction energy-saving paper folding roller is provided, comprising a paper folding roller body and the above-mentioned air-extraction member.

[0012] The paper folding roller body is provided with a plurality of annular grooves, and an air channel is provided inside the paper folding roller body.

[0013] The annular groove of the paper folding roller body is provided with an air extraction member which is rotatably mounted one by one. The side wall of the annular groove is provided with an air flow channel which is connected with the air channel.

[0014] As the paper folding roller and the air suction member rotate relative to each other, the air flow channel on each annular groove can intermittently face and communicate with the side hole of the air suction member installed on the annular groove.

[0015] The beneficial effect of the multi-stage air-extraction energy-saving folding roller is as follows: in the multi-stage air-extraction energy-saving folding roller, the air outlets of the air-extraction parts in the annular groove can be connected to the external vacuum device respectively. Thus, when the multi-stage air-extraction energy-saving folding roller is in use, it can be evacuated from each air-extraction part. Then, the air flow passage of the annular groove is opposite to the air-extraction part arranged thereon. Then, the air can be sequentially passed through the folding groove, air passage, air passage, side hole and air outlet on the folding roller and then be extracted to achieve the folding of the paper towel. Thus, the multi-stage air-extraction energy-saving folding roller can facilitate the evacuation of air from various parts of the folding roller body, avoiding the problems of large differences in the air-extraction strength of various parts and slow response of the corresponding air-extraction at some positions when the traditional single vacuum device is used to evacuate the entire folding roller body due to the excessive length and size of the folding roller body. Thus, the quality of the folded paper is ensured. At the same time, there is no need to use a specific high-power vacuum device, which effectively reduces energy consumption and improves efficiency.

[0016] In some embodiments, a plurality of folding grooves are evenly provided on the circumferential surface of the folding roller body around the center of the folding roller body, the folding grooves are arranged in a straight line across the annular groove in the length direction of the folding roller body, and the folding grooves are connected to the airway.

[0017] In some embodiments, an air extraction hole is provided on the origami groove, and the origami groove is connected to the airway through the air extraction hole.

[0018] In some embodiments, there are multiple air channels, and the same air channel can be connected to multiple origami slots, so that one air channel can simultaneously evacuate multiple origami slots.

[0019] In some embodiments, the multi-stage air extraction energy-saving folding roller further includes a cover block, each of the airflow channels having an opening. The cover block is connected to the folding roller body and covers the opening. The provision of the opening facilitates machining of the airflow channel, allowing the machining tool to directly cut through the opening onto the folding roller body during machining, thereby reducing the difficulty of machining the airflow channel. Under normal circumstances, the opening is not required, and the provision of the cover block further facilitates sealing the opening.

[0020] In some embodiments, connecting shafts are provided at both ends of the paper folding roller, and the provision of the connecting shafts facilitates the connection of the paper folding roller with an external power device to realize the rotation of the paper folding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a multi-stage air-extraction energy-saving folding roller according to an embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of a schematic structural diagram of a multi-stage air-extraction energy-saving folding roller at an air-extraction hole according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic structural diagram of an air extraction component according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic structural diagram of an air extraction component according to an embodiment of the present invention.

[0025] Figure 5 This is a schematic structural diagram of a folding roller body of a multi-stage air extraction energy-saving folding roller according to an embodiment of the present invention.

[0026] In the figure: 1. paper folding roller body, 2. exhaust member, 13. paper folding groove, 14. exhaust hole, 15. air duct, 16. connecting shaft, 10. annular groove, 101. air flow channel, 21. notch, 22. side hole, 23. reinforcing rib, 231. through hole, 24. air outlet pipe, 241. air outlet duct, 25. main body, 201. air cavity, 12. cover block. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] refer to Figure 3 and Figure 4 The present invention provides an air extraction member, comprising a main body 25 and an air outlet pipe 24.

[0030] The main body 25 is arc-shaped and is provided with a notch 21 .

[0031] A side hole 22 is provided on the side of the main body 25, and in order to ensure the strength of the side hole 22, the main body 25 is also provided with a reinforcing rib 23 in the side hole 22, and a through hole 231 is provided on the reinforcing rib 23. There can be multiple through holes 231, and the through holes 231 can make the two sides of the reinforcing rib 23 effectively connected to facilitate the passage of airflow.

[0032] An air cavity 201 is further defined in the main body 25 , and the air cavity 201 is communicated with the side hole 22 .

[0033] An air outlet duct 241 is provided on the air outlet pipe 24, one end of the air outlet pipe 24 is fixedly connected to the top of the main body 2 by welding, and a hole is provided at the connection between the main body 25 and the air outlet pipe 24, which is connected to the air cavity 201 and the air outlet duct 241, so that the air outlet duct 241 is connected to the air cavity 201.

[0034] Example 2

[0035] refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A multi-stage air-extraction energy-saving folding roller of the present invention includes a folding roller body 1 and an air-extraction component 2 of Example 1.

[0036] A plurality of paper folding grooves 13 are evenly arranged on the circumferential surface of the paper folding roller body 1 around the center of the paper folding roller body 1 , and the paper folding grooves 13 are preferably V-shaped.

[0037] An air extraction hole 14 is provided on each paper folding groove 13 , and a plurality of air extraction holes 14 can be provided as required.

[0038] There are also multiple air passages 15 in the paper folding roller 1 . All of the air passages 15 pass through the paper folding roller 1 . The openings at both ends are located on both sides of the paper folding roller 1 , and all of the air passages 15 are arranged in parallel.

[0039] The folding grooves 13 are arranged in a straight line in the length direction of the folding roller body 1 to form multiple folding groove rows. The number of folding groove rows can correspond one-to-one to the number of air ducts 13, and each folding groove row is arranged in parallel. All the folding grooves 13 on the multiple folding groove rows are connected to the multiple air ducts 15 through the exhaust holes 14 thereon, that is, the same air duct 15 can be connected to multiple folding grooves 13.

[0040] An annular groove 10 is also provided on the paper folding roller body 1. There can be multiple annular grooves 10, and each row of paper folding grooves will span each annular groove 10. According to needs, some or all of the annular grooves 10 can be selected to be installed with a vacuum member 2 one by one. The vacuum member 2 is mounted on the annular groove 10, and the vacuum member 2 and the annular groove 10 can rotate relative to each other, so that when the paper folding roller body 1 rotates, the vacuum member 2 can rotate without rotating with it.

[0041] In addition, the size of the annular groove 10 matches the size of the exhaust member 2. After installation, the main body of the exhaust member 2 is embedded in the annular groove 10, and the air outlet pipe 24 on the exhaust member 2 can pass through the annular groove 10, and the two sides of the exhaust member 2 can be respectively attached to the side walls of the annular groove 10.

[0042] The side wall of the annular groove 10 is also provided with an air flow channel 101. There can be multiple air flow channels 101 set on the side wall of one side of each annular groove 10. In this embodiment, multiple air flow channels 101 are set on the side wall of one side of each annular groove 10, and the multiple air flow channels 101 are respectively connected to the multiple air channels 15.

[0043] As the paper folding roller 1 and the air extraction member 2 rotate relative to each other, the air flow channel 101 on each annular groove 10 can intermittently face and communicate with the side hole 22 of the air extraction member 2 installed on the annular groove 10 .

[0044] Furthermore, the airflow channels 101 can be machined directly on the paper-folding roller body 1 using a tool, so that each airflow channel 101 has an opening. The multi-stage air-extraction energy-saving paper-folding roller can also include a cover block 12. There can be multiple cover blocks 12, and their number is equal to the number of airflow channels 101. All cover blocks 12 are fixedly connected to the paper-folding roller body 1 by snapping, and the multiple cover blocks 12 cover the multiple openings in a one-to-one correspondence.

[0045] A connecting shaft 16 is provided in the middle of both ends of the paper folding roller body 1. The connecting shaft 16 can facilitate the connection between the paper folding roller body 1 and an external power device, such as a motor.

[0046] When the multi-stage vacuum energy-saving folding roller of the present invention is in use, the outlet pipes 24 on each vacuum member 2 can be connected to different vacuum devices, and both ends of the air channel 15 can also be connected to vacuum devices. The vacuum devices can preferably be vacuum pumps, etc. The connecting shaft 16 of the folding roller body 1 can be connected to an external power device, such as a motor, and is mounted on an external frame via bearings. In actual use, two multi-stage vacuum energy-saving folding rollers are arranged side by side, and the folding grooves 13 on the two multi-stage vacuum energy-saving folding rollers can be staggered, so that paper can be effectively folded after passing between the two multi-stage vacuum energy-saving folding rollers.

[0047] Specifically, when the paper is folded, the two paper folding rollers 1 can be rotated by an external power device, and the rotation frequency of the paper folding rollers 1 can be equivalent to the paper folding frequency, so that the paper can pass between the two paper folding rollers 1 under the drive of the paper folding rollers. In the process of moving the paper, when the paper folding groove 13 on the paper folding roller 1 contacts a certain part of the paper, at this time, the paper folding roller 1 can rotate to the annular groove 10 on it, and the air flow channel 101 on the air pump 2 installed on the annular groove 10 can contact the air flow channel 101 on the air pump 2 installed on the annular groove 10. The side holes 22 are relative and connected, and the vacuum device can work, the vacuum part 2 can perform vacuuming, and the vacuum holes 14, air duct 15, air flow duct 101, side holes 22 and air outlet 241 on the folding groove 13 are extracted, and then this part of the paper towel can be adsorbed on the folding groove 13, thereby realizing the folding of the paper towel at this position. Since the multi-stage air-extraction energy-saving folding rollers are staggered and there are multiple folding grooves 13, the paper towel can be folded in multiple positions after passing through two folding rollers.

[0048] 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 inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A vacuum element, characterized in that: It comprises a main body (25) and an air outlet pipe (24), An air cavity (201) is provided in the main body (25), and a side hole (22) is provided on the side of the main body (25), and the air cavity (201) is communicated with the side hole (22). One end of the air outlet pipe (24) is connected to the top of the main body (2), and an air outlet channel (241) is provided on the air outlet pipe (24), and the air outlet channel (241) is communicated with the air cavity (201).

2. The air extraction member according to claim 1, characterized in that: The main body (25) is provided with a reinforcing rib (23) in the side hole (22), and the reinforcing rib (23) is provided with a through hole (231).

3. The air extraction member according to claim 1, characterized in that: The main body (25) is arc-shaped and is provided with a notch (21).

4. Multi-stage air extraction energy-saving folding roller, characterized in that: It comprises a paper folding roller (1) and the air suction member (2) according to claim 1, The paper folding roller body (1) is provided with a plurality of annular grooves (10), and an air passage (15) is provided inside the paper folding roller body (1). An air extraction member (2) is mounted on the annular groove (10) of the paper folding roller (1) in a one-to-one manner so as to be relatively rotatable. An air flow channel (101) is provided on the side wall of the annular groove (10). The air flow channel (101) is connected to the air channel (15). As the paper folding roller (1) and the air extraction member (2) rotate relative to each other, the air flow channel (101) on each of the annular grooves (10) can intermittently face and communicate with the side hole (22) of the air extraction member (2) installed on the annular groove (10).

5. The multi-stage air extraction energy-saving folding roller according to claim 4, characterized in that: A plurality of paper folding grooves (13) are evenly arranged on the circumferential surface of the paper folding roller body (1) around the center of the paper folding roller body (1), the paper folding grooves (13) are arranged in a straight line across the annular groove (10) in the length direction of the paper folding roller body (1), and the paper folding grooves (13) are connected to the air channel (15).

6. The multi-stage air extraction energy-saving paper folding roller according to claim 5, characterized in that: An air extraction hole (14) is provided on the paper folding groove (13), and the paper folding groove (13) is connected to the air passage (15) through the air extraction hole (14).

7. The multi-stage air extraction energy-saving folding roller according to claim 6, characterized in that: There are multiple air passages (15), and the same air passage (15) can be connected to multiple paper folding grooves (13).

8. The multi-stage air extraction energy-saving paper folding roller according to claim 1, characterized in that: It comprises a cover block (12), each of the air flow channels (101) is provided with an opening, and the cover block (12) is connected to the paper folding roller body (1) and covers the opening.

9. The multi-stage air extraction energy-saving paper folding roller according to claim 1, characterized in that: Connecting shafts (16) are respectively provided at both ends of the paper folding roller body (1).

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