CN102320493A - Vacuum gas valve mechanism for vacuum-adsorption folding machine - Google Patents
Vacuum gas valve mechanism for vacuum-adsorption folding machine Download PDFInfo
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- CN102320493A CN102320493A CN201110275634A CN201110275634A CN102320493A CN 102320493 A CN102320493 A CN 102320493A CN 201110275634 A CN201110275634 A CN 201110275634A CN 201110275634 A CN201110275634 A CN 201110275634A CN 102320493 A CN102320493 A CN 102320493A
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Abstract
The invention discloses a vacuum gas valve mechanism for a vacuum-adsorption folding machine, in which vacuum gas valves at both sides of a vacuum folding roller simultaneously ventilate both sides of two independent vacuum channel groups on the vacuum folding roller, so that vacuum negative pressure is quickly formed in the vacuum channels, and consequently, high speed operation of the vacuum-adsorption folding machine is realized; and simultaneously, the needed vacuum degree is reduced, and the energy consumption of a vacuum pump is reduced. Each one of the vacuum gas valves is provided with an inner ring and an outer ring, and end faces of the inner ring and the outer ring are respectively provided with an arc-shaped opening communicated with a vacuum source; two groups of vacuum channel openings of the vacuum folding roller are formed on end plates at two sides of the folding roller, and the two groups of vacuum channels are distributed on two circles with different diameters, and the diameters of the two circles are corresponding to the diameters of the circles of the arc-shaped openings on the inner ring and the outer ring of the vacuum gas valve.
Description
Technical field
The present invention relates to vacuum suction folder technology field, the vacuum valve train that particularly a kind of vacuum suction folder is used.
Background technology
Existing vacuum suction folder; Its vacuum suction fold mechanism mainly is made up of vacuum folding roller 7, folding roller end plate 4,8, vacuum air valve 1,9; Like Fig. 1, Fig. 2, shown in Figure 3, vacuum folding roller 7 be provided with two groups vertically and the vacuum passage group 6,13 that is parallel to each other lead to respectively on the opening 5,12 of folding roller end plate 4,8; When work; Rotation along with vacuum folding roller 7; Vacuum passage group 6,13 through the opening on the folding roller end plate 4,85,12 in specific rotational angle range respectively with vacuum air valve 1,9 end faces on circular arc opening 2,10 connect; Circular arc type opening 2,10 is connected with vacuum source through vacuum passage mouth 3,11; Two groups of vacuum passage groups on the vacuum folding roller 76,13 are inner so just can alternately produce negative pressure of vacuum, is adsorbed on paper on the circumferential surface of vacuum folding roller 7 to fold.In said structure; Each vacuum passage on the vacuum folding roller 7 all is only to lead to vacuum folding roller 7 wherein on the end plate opening of a side; Will the pass by distance of whole vacuum folding roller 7 roll surface length of air-flow could let and forms enough negative pressure of vacuum in the vacuum passage 6,13; In order to guarantee mechanism's ability normal operation, just must reduce the operating speed or the very big vacuum source of allocating power of folder; Especially process the paper of big fabric width, the length of vacuum folding roller 7 is longer, can make the vacuum source power demand and be multiplied.In existing structure; Owing to receive the scantling of structure restriction of vacuum folding roller 7; Opening the 5, the 12nd on vacuum passage group 6,13 and the cooresponding with it end plate 4,8 is distributed on the circumference of same diameter; If end plate 4,8 all has and vacuum passage group 6,13 corresponding opening, then vacuum passage group 6,13 also can be connected with vacuum air valve 1,9 both sides simultaneously, is implemented in and produces negative pressure of vacuum in the vacuum passage group 6,13 fast; But existing vacuum air valve structure can only let vacuum passage group 6,13 be connected with vacuum source simultaneously or close; And folder the time is to need vacuum passage group 6,13 rotating in the different rotation position to be connected or to cut out with vacuum source could realize the folding of paper in work, and therefore existing vacuum air valve 1,9 can't both let 6, the 13 ability both sides whiles of vacuum passage group be connected with vacuum source, can control separately again separately and being communicated with or closing of vacuum source; So in existing structure, folder can't be realized high-speed operation.The vacuum suction folder of said structure exists that production efficiency is low, energy consumption is high, the not high shortcoming of economy.
Summary of the invention
The vacuum valve train that the object of the present invention is to provide a kind of vacuum suction folder simple in structure to use; It can realize that the vacuum passage group both sides of vacuum folding roller are connected with vacuum source simultaneously; In vacuum passage, produce negative pressure of vacuum fast; Can control being communicated with or closing of each vacuum passage and vacuum source again separately, thereby realize the high-speed operation of vacuum suction folder, and reduce vacuum source power energy consumption significantly.
Technical solution proposed by the invention is such:
The vacuum valve train that a kind of vacuum suction folder is used; Comprise the vacuum folding roller and be positioned at its left and right two ends the 1st end plate, the 2nd end plate, be positioned at the 1st end plate outside the 1st vacuum air valve, be positioned at the 2nd end plate outside the 2nd vacuum air valve, on said vacuum folding roller, be provided with axially and the 1st vacuum passage group and the 2nd vacuum passage group that are parallel to each other; Said the 1st vacuum passage group is connected with the 1st vacuum air valve through the 1st opening of the 1st end plate, and said the 2nd vacuum passage group is connected with the 2nd vacuum air valve through the 2nd opening of the 2nd end plate; Said the 1st vacuum air valve is provided with ring and the 1st outer shroud in the 1st; The external diameter of ring equals the internal diameter of the 1st outer shroud in the 1st, and on the 1st outer shroud was sleeved on and encircles in the 1st, said the 2nd vacuum air valve was provided with ring and the 2nd outer shroud in the 2nd; The external diameter of ring equals the internal diameter of the 2nd outer shroud in the 2nd; On the 2nd outer shroud was sleeved on and encircles in the 2nd, said the 1st end plate was respectively equipped with and the 1st vacuum passage group and cooresponding the 1st opening of the 2nd vacuum passage group and the 3rd opening, and the 1st opening and the 3rd aperture distribution are on the circumference of different-diameter; The 2nd end plate is respectively equipped with and the 1st vacuum passage group and cooresponding the 2nd opening of the 2nd vacuum passage group and the 4th opening, and the 2nd opening and the 4th aperture distribution are on the circumference of different-diameter; 1st, the 1st of 2 vacuum air valves the, 2 interior ring inner end surfaces are provided with the circular arc type opening, are connected with the perforation of the 1st vacuum passage group through the 1st opening of the 1st end plate and the 2nd opening of the 2nd end plate respectively, and these two circular arc type openings are connected with vacuum source through vacuum passage; 1st, the 1st of 2 vacuum valves the, 2 outer shroud inner end surfaces are provided with the circular arc type opening, are connected with the perforation of the 2nd vacuum passage group through the 3rd opening of the 1st end plate and the 4th opening of the 2nd end plate respectively, and these two circular arc type openings are connected with vacuum source through vacuum passage.
Said the 1st vacuum passage is connected with the 2nd vacuum air valve through the 2nd end plate, and said the 2nd vacuum passage group is connected with the 1st vacuum air valve through the 1st end plate.The port number of said the 1st, 2 vacuum passage groups is 2-4.
The circular arc type opening of ring is connected with the circular arc type opening of the 1st vacuum air valve the 1st outer shroud in said the 1st vacuum air valve the 1st, and the round arc opening of the 1st outer shroud is connected with vacuum source through the 1st vacuum passage mouth; The circular arc type opening of the 2nd interior ring of said the 2nd vacuum air valve is connected with the circular arc type opening of the 2nd vacuum air valve the 2nd outer shroud, and the circular arc type opening of the 2nd outer shroud is connected with vacuum source through the 2nd vacuum passage mouth.
Ring and the 1st, 2 outer shrouds are formed by two semicircular ring in said the 1st, 2.
Compared with prior art, the present invention has following remarkable result:
Since the 1st, the 2nd vacuum passage group both sides on the vacuum folding roller simultaneously with the 1st, the 2nd end plate on the 1st opening, the 3rd opening and the 2nd opening, the 4th opening connect respectively; And then with vacuum air valve the 1st, the 2nd in circular arc type opening on the ring, the 1st, the 2nd outer shroud match; Realized that two groups of vacuum passages on the vacuum folding roller are connected with vacuum source by turns on specific turned position; Thereby in vacuum passage, produce negative pressure of vacuum fast; Realize the high-speed operation of vacuum suction folder, and then reduced the power energy consumption of vacuum source significantly.The reality air valve arrangement is simple, easy to adjust, economy is high, practical.
Description of drawings
Fig. 1 is the vacuum air valve structure scheme drawing of existing vacuum suction folder.
Fig. 2 is A-A cross-sectional schematic of Fig. 1.
Fig. 3 is B-B cross-sectional schematic of Fig. 1.
Fig. 4 is the vacuum air valve structure scheme drawing of the vacuum suction folder of one embodiment of the invention.
Fig. 5 is C-C cross-sectional schematic of Fig. 4.
Fig. 6 is D-D cross-sectional schematic of Fig. 4.
In Fig. 4, Fig. 5, Fig. 6: 21, vacuum folding roller the 1st spindle nose; 22, the 1st of the 1st vacuum air valve the interior ring; 23, the 1st opening of the 1st end plate; 24, the circular arc type opening of ring in the 1st vacuum air valve the 1st; 25, the 1st outer shroud of the 1st vacuum air valve; 26, the 1st end plate; 27, vacuum folding roller; 28, the 1st vacuum passage group; 29, the 2nd end plate; 30, the 2nd outer shroud of the 2nd vacuum air valve; 31, the circular arc type opening of ring in the 2nd vacuum air valve the 2nd; 32, the 2nd opening of the 2nd end plate; 33, the 2nd of the 2nd vacuum air valve the interior ring; 34, vacuum folding roller the 2nd spindle nose; 35, the circular arc type opening of the 2nd vacuum air valve the 2nd outer shroud; 36, the 2nd vacuum passage mouth; 37, the 4th opening of the 2nd end plate; 38, the 2nd vacuum passage group; 39, the 3rd opening of the 1st end plate; 40, the 1st vacuum passage mouth; 41, the circular arc type opening of the 1st vacuum air valve the 1st outer shroud.
The specific embodiment
Through following embodiment the present invention is done further to set forth in detail.
Referring to Fig. 4-shown in Figure 6; The vacuum valve train that a kind of vacuum suction folder is used; Comprise vacuum folding roller 27 and be positioned at its left and right two ends the 1st end plate the 26, the 2nd end plate 29, be positioned at the 1st end plate 26 outsides the 1st vacuum air valve, be positioned at the 2nd vacuum air valve in the 2nd end plate 29 outsides; On said vacuum folding roller 27, be provided with the 1st vacuum passage group 28 and the 2nd vacuum passage group 38 axial and that be parallel to each other, said the 1st vacuum air valve is provided with the internal diameter that the external diameter that encircles ring 22 in the 22 and the 1st outer shroud 25, the 1 in the 1st equals the 1st outer shroud 25; The 1st outer shroud 25 is sleeved on and encircles on 22 in the 1st; Said the 2nd vacuum air valve is provided with the internal diameter that the external diameter that encircles ring 33 in the 33 and the 2nd outer shroud 30, the 2 in the 2nd equals the 2nd outer shroud 30, and the 2nd outer shroud 30 is sleeved on the 2nd interior ring 33; Said the 1st end plate 26 is respectively equipped with the 1st vacuum passage group 28 and the 2nd vacuum passage group 38 cooresponding the 1st openings 23 and the 3rd opening 39, the 1 openings 23 and the 3rd opening 39 and is distributed on the circumference of different-diameter; The 2nd end plate 29 is respectively equipped with the 1st vacuum passage group 28 and the 2nd vacuum passage group 38 cooresponding the 2nd openings 32 and the 4th opening 37, the 2 openings 32 and the 4th opening 37 and is distributed on the circumference of different-diameter; 1st, the 1st of 2 vacuum air valves the, 2 interior ring inner end surfaces are provided with circular arc type opening 24,31, are connected with 28 perforations of the 1st vacuum passage group through the 1st opening 23 of the 1st end plate 26 and the 2nd opening 32 of the 2nd end plate 29 respectively; 1st, the 1st of 2 vacuum valves the, 2 outer shroud inner end surfaces are provided with circular arc type opening 41,35, are connected with 38 perforations of the 2nd vacuum passage group through the 3rd opening 39 of the 1st end plate 26 and the 4th opening 37 of the 2nd end plate respectively.
The circular arc type opening 24 of ring is connected with the circular arc type opening 41 of the 1st vacuum air valve the 1st outer shroud in said the 1st vacuum air valve the 1st, and the circular arc type opening 41 of the 1st outer shroud is connected with vacuum source through the 1st vacuum passage mouth 40; The circular arc type opening 31 of the 2nd interior ring of said the 2nd vacuum air valve is connected with the circular arc type opening 35 of the 2nd vacuum air valve the 2nd outer shroud, and the circular arc type opening 35 of the 2nd outer shroud is connected with vacuum source through the 2nd vacuum passage mouth 36.
In the present embodiment, ring 22,33 and the 1st, 2 outer shrouds 25,30 are formed by two semicircular ring in said the 1st, the 2 vacuum air valves the 1st, 2.
During work; 1st, the 1st, the 2nd outer shroud the 25, the 30th of the 1st of the 2nd vacuum air valve the, the 2nd interior ring the 22,33 and the 1st, the 2nd vacuum air valve is fixed; Vacuum passage group 28,38 rotations on the vacuum folding roller 27 along with vacuum folding roller 27; The circular arc type opening 24,31 that the 1st, the 2nd opening 23,32 on its both sides the 1st, the 2nd end plate 26,29 encircles on 22,33 with the 1st, the 2nd vacuum air valve that is positioned at vacuum folding roller 27 both sides in specific rotational angle range simultaneously is connected; 1st, the 3rd, the 4th opening 39,37 on the 2nd end plate 26,29 simultaneously in specific rotational angle range with the 1st, the 2nd vacuum air valve outer shroud 25,30 that is positioned at vacuum folding roller 27 both sides on circular arc type opening 41,35 be connected; Because the circular arc type opening 24,31 that encircles in the 1st, the 2nd vacuum air valve the 1st, the 2nd and the circular arc type opening the 41, the 35th of the 1st, the 2nd outer shroud are connected; And the camber opening the 41, the 35th of the 1st, the 2nd outer shroud is connected with vacuum source through the 1st, the 2nd vacuum passage mouth 40,36; 1st, the 2nd vacuum passage group 28 and 38 inside will produce negative pressure of vacuum by turns in specific rotational angle range, fold thereby be adsorbed on paper on the circumferential surface of vacuum folding roller 27.In this structure; 1st, each passage of the 2nd vacuum passage group 28,38 all is that both sides are connected with vacuum source simultaneously or close; The half the distance of passage length of only need passing by when the air-flow in the passage is taken away; Thereby portion produces negative pressure of vacuum fast within it, has realized the high-speed operation of vacuum suction folder.
Claims (5)
1. vacuum valve train that the vacuum suction folder is used; Comprise the vacuum folding roller and be positioned at its left and right two ends the 1st end plate, the 2nd end plate, be positioned at the 1st end plate outside the 1st vacuum air valve, be positioned at the 2nd end plate outside the 2nd vacuum air valve, on said vacuum folding roller, be provided with axially and the 1st vacuum passage group and the 2nd vacuum passage group that are parallel to each other; Said the 1st vacuum passage group is connected with the 1st vacuum air valve through the 1st opening of the 1st end plate; Said the 2nd vacuum passage group is connected with the 2nd vacuum air valve through the 2nd opening of the 2nd end plate; It is characterized in that: said the 1st vacuum air valve is provided with ring and the 1st outer shroud in the 1st; The external diameter of ring equals the internal diameter of the 1st outer shroud in the 1st, and on the 1st outer shroud was sleeved on and encircles in the 1st, said the 2nd vacuum air valve was provided with ring and the 2nd outer shroud in the 2nd; The external diameter of ring equals the internal diameter of the 2nd outer shroud in the 2nd; On the 2nd outer shroud was sleeved on and encircles in the 2nd, said the 1st end plate also was provided with the 3rd opening of corresponding connection with the 2nd vacuum passage group, and said the 1st opening and the 3rd aperture distribution are on the circumference of the 1st end plate different-diameter; The 2nd end plate also is provided with the 4th opening of corresponding connection with the 1st vacuum passage group, and said the 2nd opening and the 4th aperture distribution are on the circumference of the 2nd end plate different-diameter; 1st, the 1st of 2 vacuum air valves the, 2 interior ring inner end surfaces are equipped with the circular arc type opening, are connected with the perforation of the 1st vacuum passage group through the 1st opening of the 1st end plate and the 2nd opening of the 2nd end plate respectively, and these two circular arc type openings are connected with vacuum source through vacuum passage; 1st, the 1st of 2 vacuum air valves the, 2 outer shroud inner end surfaces are provided with the circular arc type opening, are connected with the perforation of the 2nd vacuum passage group through the 3rd opening of the 1st end plate and the 4th opening of the 2nd end plate respectively, and these two circular arc type openings are connected with vacuum source through vacuum passage.
2. the vacuum valve train that vacuum suction folder according to claim 1 is used; It is characterized in that: said the 1st vacuum passage group is connected with the 2nd vacuum air valve through the 2nd end plate, and said the 2nd vacuum passage group is connected with the 1st vacuum air valve through the 1st end plate.
3. the vacuum valve train that vacuum suction folder according to claim 1 is used is characterized in that: the port number of said the 1st, 2 vacuum passage groups is 2-4.
4. the vacuum valve train that vacuum suction folder according to claim 1 is used; It is characterized in that: the circular arc type opening of ring is connected with the circular arc type opening of the 1st vacuum air valve the 1st outer shroud in said the 1st vacuum air valve the 1st, and the circular arc type opening of the 1st outer shroud is connected with vacuum source through the 1st vacuum passage mouth; The round arc opening of the 2nd interior ring of said the 2nd vacuum air valve is connected with the circular arc type opening of the 2nd vacuum air valve the 2nd outer shroud, and the round arc opening of the 2nd outer shroud is connected with vacuum source through the 2nd vacuum passage mouth.
5. the vacuum valve train that vacuum suction folder according to claim 1 is used is characterized in that: ring and the 1st, 2 outer shrouds are formed by two semicircular ring in said the 1st, 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110275634 CN102320493B (en) | 2011-09-16 | 2011-09-16 | Vacuum gas valve mechanism for vacuum-adsorption folding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110275634 CN102320493B (en) | 2011-09-16 | 2011-09-16 | Vacuum gas valve mechanism for vacuum-adsorption folding machine |
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| Publication Number | Publication Date |
|---|---|
| CN102320493A true CN102320493A (en) | 2012-01-18 |
| CN102320493B CN102320493B (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110275634 Active CN102320493B (en) | 2011-09-16 | 2011-09-16 | Vacuum gas valve mechanism for vacuum-adsorption folding machine |
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| CN (1) | CN102320493B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238485A (en) * | 2016-12-23 | 2018-07-03 | 上海东冠纸业有限公司 | A kind of folding roll assembly for reducing wear intensity |
| CN109160361A (en) * | 2018-09-18 | 2019-01-08 | 南通市通州兴辰机械有限公司 | Yardstick plaiter with high accuracy and the method for improving yardstick precision |
| CN111924628A (en) * | 2020-07-15 | 2020-11-13 | 佛山市南海铭阳机械制造有限公司 | Folding stick of drawing type cotton soft towel machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991994A (en) * | 1973-11-05 | 1976-11-16 | Wood Industries, Inc. | Zig-zag web folder apparatus |
| CN2614198Y (en) * | 2003-04-04 | 2004-05-05 | 东莞市佳鸣造纸机械研究所 | Paper carrying roller structure for paper towel folding machine |
| EP2239222A2 (en) * | 2009-04-08 | 2010-10-13 | C.G. Bretting Manufacturing Co., Inc. | Resilient tucker element for interfolder folding rolls |
| CN102060208A (en) * | 2009-12-15 | 2011-05-18 | 吴兆广 | Air suction/exhaust method and structure of V-shaped box type facial tissue folding machine |
| CN202226454U (en) * | 2011-09-16 | 2012-05-23 | 郭超毅 | Vacuum air valve mechanism for vacuum absorption folding machine |
-
2011
- 2011-09-16 CN CN 201110275634 patent/CN102320493B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991994A (en) * | 1973-11-05 | 1976-11-16 | Wood Industries, Inc. | Zig-zag web folder apparatus |
| CN2614198Y (en) * | 2003-04-04 | 2004-05-05 | 东莞市佳鸣造纸机械研究所 | Paper carrying roller structure for paper towel folding machine |
| EP2239222A2 (en) * | 2009-04-08 | 2010-10-13 | C.G. Bretting Manufacturing Co., Inc. | Resilient tucker element for interfolder folding rolls |
| CN102060208A (en) * | 2009-12-15 | 2011-05-18 | 吴兆广 | Air suction/exhaust method and structure of V-shaped box type facial tissue folding machine |
| CN202226454U (en) * | 2011-09-16 | 2012-05-23 | 郭超毅 | Vacuum air valve mechanism for vacuum absorption folding machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238485A (en) * | 2016-12-23 | 2018-07-03 | 上海东冠纸业有限公司 | A kind of folding roll assembly for reducing wear intensity |
| CN109160361A (en) * | 2018-09-18 | 2019-01-08 | 南通市通州兴辰机械有限公司 | Yardstick plaiter with high accuracy and the method for improving yardstick precision |
| CN111924628A (en) * | 2020-07-15 | 2020-11-13 | 佛山市南海铭阳机械制造有限公司 | Folding stick of drawing type cotton soft towel machine |
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| CN102320493B (en) | 2013-07-24 |
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