CN109109455B - Dust collector of printing machine - Google Patents
Dust collector of printing machine Download PDFInfo
- Publication number
- CN109109455B CN109109455B CN201810961278.3A CN201810961278A CN109109455B CN 109109455 B CN109109455 B CN 109109455B CN 201810961278 A CN201810961278 A CN 201810961278A CN 109109455 B CN109109455 B CN 109109455B
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- dust removing
- roller
- removing roller
- dust
- air suction
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- 239000000428 dust Substances 0.000 title claims abstract description 270
- 238000007639 printing Methods 0.000 title claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 54
- 230000002093 peripheral effect Effects 0.000 claims abstract description 22
- 238000007790 scraping Methods 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000000638 solvent extraction Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002344 surface layer Substances 0.000 abstract description 3
- 238000005247 gettering Methods 0.000 abstract 1
- 238000010410 dusting Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- 238000005265 energy consumption Methods 0.000 description 9
- 230000029058 respiratory gaseous exchange Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 208000002925 dental caries Diseases 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a dust removal device of a printing machine, which relates to the technical field of printing, and has poor dust removal effect because the existing dust removal roller can only stick and remove dust on the surface layer when dust in a certain area on paper is more. The scheme comprises a rack, wherein a conveying belt and a roller frame are installed in the rack, and a front dust removing roller and a rear dust removing roller are rotatably connected to the roller frame; the front dust removing roller and the rear dust removing roller are both arranged in a hollow manner, the peripheral wall of the front dust removing roller and the peripheral wall of the rear dust removing roller are respectively provided with a front air suction hole and a rear air suction hole, and one side of the rack is provided with an air exhaust assembly; the peripheral wall of the front dust removing roller is sleeved with a plurality of front abutting rings, and the peripheral wall of the rear dust removing roller is sleeved with a plurality of rear abutting rings; the projections of the front pressing ring and the rear pressing ring in a plane perpendicular to the conveying direction of the conveying belt are not overlapped. What this scheme adopted promptly absorbs the dust removal, has replaced pasting the dust removal, then the dust on can more than the gettering top layer, pastes the dust removal in dust removal roller relatively, and dust collection efficiency is higher.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a dust removal device of a printing machine.
Background
A printing machine is a tool for applying printing paste such as ink to a printing material such as paper through a printing plate to print characters and patterns. At present, when characters or patterns are printed on paper, a certain amount of dust is usually attached to the surface of the paper to be printed due to the fact that certain dust floats in the air of a production workshop, and the certain amount of dust can cause adverse effects on the printing quality in the ink printing process.
At present, more dust removal devices are used, dust on paper is adsorbed mainly by a dust removal roller, and the dust removal roller transfers the dust to a dust collection paper roll which can be peeled layer by layer to complete dust removal work. However, if the dust in a certain area of the paper is accumulated too much, that is, the thickness of the dust in the area is larger, the dust which can be adhered and removed by the dust removing roller is limited to the upper surface of the dust, and a large amount of dust cannot be adhered and removed by the dust removing roller, which finally results in poor dust removing effect.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the dust removal device of the printing machine, which adopts absorption dust removal instead of sticking dust removal, so that the dust on the surface layer can not be absorbed, and compared with the sticking dust removal of a dust removal roller, the dust removal efficiency is higher.
In order to achieve the purpose, the invention provides the following technical scheme: a dust removal device of a printing machine comprises a rack, wherein a conveying belt is installed in the rack, a roller frame is connected in the rack, a front dust removal roller and a rear dust removal roller which are arranged in parallel are rotatably connected to the roller frame, the front dust removal roller and the rear dust removal roller are both positioned above the conveying belt, and the axis of the front dust removal roller is perpendicular to the conveying direction of the conveying belt; the roller frame is provided with a driving assembly for driving the front dust removing roller and the rear dust removing roller to rotate; the front dust removing roller and the rear dust removing roller are both arranged in a hollow manner, the peripheral wall of the front dust removing roller and the peripheral wall of the rear dust removing roller are respectively provided with a front air suction hole and a rear air suction hole, and one side of the rack is provided with an air exhaust assembly for sucking the inside of the front dust removing roller and the inside of the rear dust removing roller; the peripheral wall of the front dust removing roller is fixedly sleeved with a plurality of front pressing rings for pressing paper on the conveying belt; the peripheral wall of the rear dust removing roller is fixedly sleeved with a plurality of rear pressing rings for pressing paper on the conveying belt; the projections of the front pressing ring and the rear pressing ring in a plane perpendicular to the conveying direction of the conveying belt are not overlapped.
Through adopting above-mentioned technical scheme, the paper is in the in-process of passing through preceding dust removal roller below and back dust removal roller below in proper order, and preceding pressing ring and back are supported the pressing ring and can be used for supporting the paper tightly on the conveyer belt. The arrangement ensures that the paper can still stably move on the conveyor belt when the paper sucks dust. Meanwhile, dust on the paper is sucked into the front dust removing roller and the rear dust removing roller respectively through the front air suction hole and the rear air suction hole and is finally sucked away by the air suction assembly.
Because preceding pressing ring and the back projection of pressing the ring in the plane of perpendicular to conveyer belt direction of delivery do not have the coincidence, then the mode that preceding dust removal roller and back dust removal roller combination removed dust can be under the prerequisite of keeping the steady transport of paper, makes the whole upper surface of dust removal scope cover paper, owing to this scheme adoption absorb the dust removal, replaced pasting the dust removal moreover, then can not only absorb the dust on top layer, compare in the dust removal roller pasting dust removal, dust collection efficiency is higher.
The invention is further provided with: the air extraction assembly comprises a main air suction pipe, an air extraction pump arranged on the main air suction pipe, a front air suction branch pipe used for connecting the interior of the front dust removal roller and the main air suction pipe, and a rear air suction branch pipe used for connecting the interior of the rear dust removal roller and the main air suction pipe; a front connecting strip and a rear connecting strip are fixed on the roller frame, a front ventilating duct and a rear ventilating duct are respectively arranged in the front connecting strip and the rear connecting strip along the respective axial direction, a front ventilating branch pipe and a rear ventilating branch pipe are respectively connected with the front ventilating duct and the rear ventilating duct, and the front ventilating branch pipe and the rear ventilating branch pipe are both communicated with the air suction main pipe; the front connecting strip is provided with a plurality of front suction heads aligned to the front compression ring, and the front suction heads are communicated with the front air duct; the rear connecting strip is provided with a plurality of rear suction heads aligned to the rear abutting compression ring, and the rear suction heads are communicated with the rear ventilation duct.
Through adopting above-mentioned technical scheme, preceding dust removal roller and back dust removal roller are rotating the in-process, and some dust can be glutinous in the front to support the clamping ring and support after to press on the ring periphery wall, and preceding suction head and back suction head can support the clamping ring and support after to before respectively and press the ring to carry out the dust absorption processing to supporting the dust bonding volume on clamping ring and the back to pressing the ring before reducing, finally can reduce the probability of the dust secondary pollution paper of the bonding of preceding clamping ring and back to pressing the ring.
The invention is further provided with: the front connecting strip is positioned on one side of the front dust removing roller facing the conveying belt to convey, and the rear connecting strip is positioned on one side of the rear dust removing roller facing the conveying belt to convey.
By adopting the technical scheme, in the dust collection process of the front suction head and the rear suction head, under the action of suction force, part of dust is separated from the front pressing ring or the rear pressing ring but cannot reach the front suction head or the rear suction head, and then falls back to paper. The purpose of arranging the front connecting strip on the side where the front dust removing roller faces the conveying belt to convey and arranging the rear connecting strip on the side where the rear dust removing roller faces the conveying belt to convey is to enable dust falling back on paper to be sucked by the front dust removing roller or the rear dust removing roller on the side where the front dust removing roller faces the conveying belt to convey again.
The invention is further provided with: a front scraping sheet is fixed on the front connecting strip, one side of the front scraping sheet is in contact with the peripheral walls of the front pressing rings, and the front scraping sheet is positioned below the front suction head; a rear scraping sheet is fixed on the rear connecting strip, one side edge of the rear scraping sheet is in contact with the peripheral wall of the front pressing rings of the plurality of pressing rings, and the rear scraping sheet is positioned below the rear suction head.
Through adopting above-mentioned technical scheme, preceding dust removal roller pivoted in-process, glutinous in the front support press ring periphery and not can be scraped by preceding scraping plate by the dust of preceding suction head absorption to it scrapes the material upside before to amass, can be inhaled by preceding suction head afterwards. Similarly, the dust scraped by the rear scraping sheet can be sucked by the rear suction head.
The invention is further provided with: the front dust removing roller is internally provided with a front partition plate used for partitioning the interior of the front dust removing roller into an upper cavity and a lower cavity, the two ends of the front partition plate along the axial direction of the front dust removing roller are respectively fixed with a front end plate used for sealing the end part of the front dust removing roller, the front end plate is fixedly connected with the roller frame, and a front air suction branch pipe is communicated into the cavity which is close to the lower part in the interior of the front dust removing roller;
the rear dust removing roller is internally provided with a rear partition plate which is used for partitioning the interior of the rear dust removing roller into an upper cavity and a lower cavity, the two ends of the rear partition plate along the axial direction of the rear dust removing roller are respectively fixed with a rear end plate which is used for sealing the end part of the rear dust removing roller, the rear end plate is fixedly connected with the roller frame, and a rear air suction branch pipe is communicated into the cavity which is close to the interior of the rear dust removing roller.
By adopting the technical scheme, in the air suction process of the front air suction branch pipe, the front air suction holes in the upper half part of the front dust removing roller suck air upwards, so that the effect of sucking dust on paper cannot be achieved; and through being equipped with a preceding division board that sets up horizontally all the time to with preceding dust removal roller internal partitioning become upper and lower space, then preceding branch pipe of breathing in can act on the preceding suction opening of preceding dust removal roller lower half all the time, thereby reduces the energy consumption, improves the efficiency of breathing in. In a similar way, the arrangement of the rear partition plate can also reduce energy consumption and improve air suction efficiency.
The invention is further provided with: a front sealing strip is clamped between the front partition plate and the inner wall of the front dust removing roller; and a rear sealing strip is clamped between the rear partition plate and the inner wall of the rear dust removing roller.
Through adopting above-mentioned technical scheme, preceding sealing strip is used for improving the leakproofness between two upper and lower cavitys of preceding dust removal roller to reduce the energy consumption. The rear sealing strip is used for improving the sealing performance between the upper cavity and the lower cavity of the rear dust removing roller so as to reduce energy consumption.
The invention is further provided with: and the frame is provided with a lifting piece for driving the roller frame to lift.
Through adopting above-mentioned technical scheme, the vertical interval of dust removal roller, back dust removal roller and conveyer belt before the adjustable of piece goes up and down to make this dust collector be applicable to the dust removal of different thickness papers.
The invention is further provided with: the cross sections of the front air suction hole and the rear air suction hole are horn-shaped, and the aperture of one end of the front air suction hole, which is far away from the axis of the front dust removing roller, is larger than the aperture of one end of the front air suction hole, which is close to the axis of the front dust removing roller; the aperture of one end of the rear air suction hole, which is far away from the axis of the rear dust removing roller, is larger than the aperture of one end of the rear air suction hole, which is close to the axis of the rear dust removing roller.
By adopting the technical scheme, the air suction range of the front air suction hole is enlarged, and the dust suction capacity of the front air suction hole is improved.
The invention has the following advantages:
1. the scheme adopts the absorption dust removal instead of the sticking dust removal, so that the dust on the surface layer can be absorbed and removed, and compared with the sticking dust removal of a dust removal roller, the dust removal efficiency is higher;
2. this scheme can reduce the energy consumption through being equipped with preceding division board and back division board, improves the efficiency of breathing in.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a top view of the present embodiment;
FIG. 3 is a schematic view of a portion of the structure of FIG. 1 showing the connection of the drive assembly to the front and rear scrub rollers;
FIG. 4 is a schematic view of a portion of the structure of FIG. 1 showing the connection of the suction assembly to the front and rear rolls;
3 FIG. 35 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 32 3; 3
FIG. 6 is an enlarged schematic view at B in FIG. 5, showing the structure of the interior of the front dusting roller;
FIG. 7 is a schematic view of the components of the front divider plate of FIG. 6;
FIG. 8 is an enlarged schematic view at C of FIG. 5 showing the interior configuration of the rear scrub roller;
fig. 9 is a schematic view of the components on the rear divider panel of fig. 8.
Reference numerals: 1. a frame; 11. a roller frame; 12. a lifting member; 13. a conveyor belt; 131. a carriage; 14. an air extraction assembly; 15. an air pump; 16. a suction main pipe; 161. a front suction manifold; 162. a front vent branch; 163. a rear suction branch pipe; 164. a rear ventilation branch pipe; 17. a dust collection box; 2. a front dusting roller; 21. a front suction hole; 22. a front pressing ring; 23. a front divider plate; 231. a front seal strip; 24. a front end plate; 25. a front bearing; 26. a front fixing rod; 27. a front connecting strip; 271. scraping the material sheet; 28. a front air duct; 29. a front suction head; 3. a rear dusting roller; 31. a rear suction hole; 32. a rear pressing ring; 33. a rear divider plate; 331. a rear seal strip; 34. a rear end plate; 35. a rear bearing; 36. a rear fixing rod; 37. a rear connecting strip; 371. a rear scraping sheet; 38. a rear air duct; 39. a rear suction head; 4. a drive assembly; 41. a driven gear; 42. a driving gear; 43. the motor is driven.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is further described with reference to the accompanying drawings.
A dust removing device of a printing machine, referring to fig. 1 and 2, comprises a frame 1, wherein a conveying belt 13 is installed in the frame 1, and the conveying belt 13 is installed on a conveying frame 131. The roller frame 11 is further connected in the machine frame 1, the lifting piece 12 used for driving the roller frame 11 to lift is installed on the machine frame 1, and the lifting piece 12 is an air cylinder. The last rotation of roller frame 11 is connected with parallel arrangement's preceding dust removal roller 2 and back dust removal roller 3, and preceding dust removal roller 2 and back dust removal roller 3 all are located 13 tops of conveyer belt, and the axis perpendicular to conveyer belt 13's of preceding dust removal roller 2 direction of delivery, and preceding dust removal roller 2 is located back dust removal roller 3 and meets conveyer belt 13 direction of delivery one side.
Referring to fig. 1 and 2, two sets of driving assemblies 4 are mounted on the roller frame 11, the two sets of driving assemblies 4 are respectively used for driving the front dust removing roller 2 and the rear dust removing roller 3 to rotate, and bearings (not shown in the figure) are connected between the front dust removing roller 2, the rear dust removing roller 3 and the roller frame 11.
Referring to fig. 1 and 2, the front dust removing roller 2 and the rear dust removing roller 3 are both hollow, and a front air suction hole 21 and a rear air suction hole 31 are respectively formed on the peripheral wall, and an air exhaust assembly 14 is arranged on one side of the frame 1, and the air exhaust assembly 14 is used for sucking air inside the front dust removing roller 2 and inside the rear dust removing roller 3. When the paper passes under the front and rear dust removing rollers 2 and 3 while being conveyed by the conveyor belt 13, dust on the paper can be sucked into the front and rear dust removing rollers 2 and 3 through the front and rear suction holes 21 and 31.
Referring to fig. 1 and 2, a plurality of front pressing rings 22 are fixedly sleeved on the circumferential wall of the front dust removing roller 2, and the front pressing rings 22 are used for pressing paper against the conveying belt 13, so that the paper can still stably move on the conveying belt 13 in the dust collection process and is not adsorbed on the front dust removing roller 2 all the time. The fixed cover is equipped with a plurality of back and supports the pressure ring 32 on the perisporium of back dust removal roller 3, and back supports the pressure ring 32 and is used for supporting the paper tightly on conveyer belt 13, and in the same way, in the dust absorption process, through the suppression of back pressure ring 32 to the paper, the paper still can comparatively stable motion on conveyer belt 13, and is unlikely to adsorb on preceding dust removal roller 2 always.
Referring to fig. 1 and 2, the plurality of front pressing rings 22 are arranged at equal intervals along the axial direction of the front dust removing roller 2, the plurality of rear pressing rings 32 are also arranged at equal intervals along the axial direction of the rear dust removing roller 3, and projections of the front pressing rings 22 and the rear pressing rings 32 in a plane perpendicular to the conveying direction of the conveying belt 13 do not overlap. The purpose of the arrangement is that the front dust removing roller 2 can suck dust in the gaps between the front pressing rings 22 so as to suck the dust in the gaps corresponding to the areas on the paper; then the dusting roller 3 can remove dust to that partial paper region that preceding dusting roller 2 can not handle to by the combination of preceding dusting roller 2 and back dusting roller 3 remove dust, can carry out complete dust removal processing to the paper.
Referring to fig. 3 and 4, the driving assembly 4 includes a driving motor 43 fixedly installed on the roller frame 11, a driving gear 42 connected to an output shaft of the driving motor 43, and a driven gear 41 fixedly attached to the peripheral wall of the front dust removing roller 2 and the peripheral wall of the rear dust removing roller 3, the driven gear 41 being engaged with the driving gear 42. Through being equipped with drive assembly 4, then the paper is when the dust removal roller 2 below before and the dust removal roller 3 below of process, and preceding pressing ring 22 and back pressing ring 32 can provide certain drive power for the paper to make the paper more smooth and easy process its below. If the driving assembly 4 is not provided, the front pressing ring 22 and the rear pressing ring 32 which cannot rotate actively can bring friction to the paper to hinder the paper from advancing, and finally the paper can not be conveyed normally.
Referring to fig. 3 and 4, the air exhausting assembly 14 includes a dust box 17, a suction main pipe 16 having one end connected into the dust box 17, an air exhausting pump 15 installed on the suction main pipe 16, a front suction branch pipe 161, and a rear suction branch pipe 163. One end of the front air suction branch pipe 161 is communicated with the interior of the front dust removing roller 2, and the other end is communicated with the peripheral wall of the air suction main pipe 16; the rear suction branch pipe 163 is connected at one end to the inside of the rear cleaning roller 3 and at the other end to the peripheral wall of the suction main pipe 16. The suction pump 15 can suck the dust in the front dust removing roller 2 and the dust in the rear dust removing roller 3 into the dust collecting box 17 together to reduce the secondary pollution.
Referring to fig. 6 and 7, the cross section of the front air suction holes 21 is trumpet-shaped, and the aperture of one end of the front air suction holes 21 far away from the axis of the front dust removing roll 2 is larger than that of one end of the front air suction holes 21 close to the axis of the front dust removing roll 2. The above arrangement is intended to expand the suction range of the front suction hole 21 and improve the dust suction capability of the front suction hole 21. Be equipped with a preceding division board 23 in the preceding dust removal roller 2, two cavitys about preceding division board 23 is used for separating into preceding dust removal roller 2 internal partitioning, and preceding division board 23 all is fixed with a front end plate 24 along preceding dust removal roller 2 axial both ends perpendicularly, and is connected with front bearing 25 between the periphery wall of front end plate 24 and preceding dust removal roller 2 tip, and front bearing 25 is sealed bearing. I.e. the front end plate 24 may be used to close the front dusting roller 2 ends.
Referring to fig. 6 and 7, a front fixing rod 26 is fixedly connected to the outer side wall of the front end plate 24, and the front fixing rod 26 is fixedly connected to the roller frame 11 (see fig. 4), so that the front separation plate 23 can be kept stationary during the rotation of the front dust removal roller 2. And the front suction branch pipe 161 is communicated into a lower cavity inside the front dusting roller 2. The purpose of the above setting is then: in the air suction process of the front air suction branch pipe 161, the front air suction holes 21 on the upper half part of the front dust removing roller 2 suck air upwards, so that the function of sucking dust on paper cannot be achieved; and through being equipped with a preceding division board 23 that sets up horizontally all the time to divide into upper and lower space in preceding dust removal roller 2, then preceding branch pipe 161 of breathing in can act on the preceding suction opening 21 of preceding dust removal roller 2 lower half all the time, thereby reduces the energy consumption, improves the efficiency of breathing in.
Referring to fig. 6 and 7, a front sealing strip 231 is sandwiched between the front partition plate 23 and the inner wall of the front dust removal roller 2, and the front sealing strip 231 is used for improving the sealing performance between the upper cavity and the lower cavity of the front dust removal roller 2 so as to reduce energy consumption.
Referring to fig. 6 and 7, a front connecting strip 27 is fixed on the roller frame 11, and the front connecting strip 27 is positioned on the side of the front dust removing roller 2 conveyed towards the conveying belt 13. The front connecting strip 27 is provided with a front air duct 28 axially arranged along the front connecting strip, one end of the front air duct 28 is connected with a front air branch pipe 162 (see fig. 4), and the front air branch pipe 162 is communicated with a front air suction branch pipe 161 (see fig. 4). The front connecting strip 27 is provided with a plurality of front suction heads 29 (see fig. 4) aligned with the corresponding front pressing rings 22, and the front suction heads 29 are communicated with the front air duct 28. Part of the dust adhering to the periphery of the front pressing ring 22 can be sucked into the front air duct 28 by the front suction head 29 and finally conducted into the dust box 17 (see fig. 4).
Referring to fig. 6 and 7, a front scraping piece 271 is fixed on the front connecting strip 27, one side of the front scraping piece 271 contacts with the peripheral walls of the front pressing rings 22, and the front scraping piece 271 is located below the front suction head 29. Dust adhered to the periphery of the front pressing ring 22 can be scraped by the front scraping sheet 271 during the rotation of the front dust removing roller 2, and accumulated on the upper side of the front scraping sheet 271, and then can be sucked by the front suction head 29.
Referring to fig. 8 and 9, the cross section of each rear air suction hole 31 is trumpet-shaped, and the aperture of one end of each rear air suction hole 31 far away from the axis of the rear dust removing roll 3 is larger than that of one end of each rear air suction hole 31 close to the axis of the rear dust removing roll 3. The above arrangement is intended to expand the suction range of the rear suction hole 31 and improve the dust suction performance of the rear suction hole 31. Be equipped with a back division board 33 in the back dust removal roller 3, back division board 33 is used for separating into two upper and lower cavitys with back dust removal roller 3 internal partitioning, and back division board 33 all is fixed with a back end plate 34 along the axial both ends of back dust removal roller 3 perpendicularly, and is connected with rear bearing 35 between the periphery wall of back end plate 34 and the 3 tip of back dust removal roller, and rear bearing 35 is sealed bearing. I.e. the rear end plate 34 may be used to close off the rear dusting roller 3 ends.
Referring to fig. 8 and 9, a rear fixing rod 36 is fixedly connected to the outer side wall of the rear end plate 34, and the rear fixing rod 36 is fixedly connected to the roller frame 11 (see fig. 4), so that the rear separation plate 33 can be kept stationary during the rotation of the rear cleaning roller 3. And the rear suction manifold 163 is communicated into the lower cavity inside the rear dusting roller 3. The purpose of the above setting is then: in the air suction process, the rear air suction branch pipe 163 cannot suck dust on paper because the rear air suction holes 31 in the upper half part of the rear dust removing roller 3 suck air upwards; and through being equipped with a back division board 33 that sets up horizontally all the time to separate into upper and lower space with back dusting roller 3 inside, then back branch pipe 163 of breathing in can act on the back suction opening 31 of back dusting roller 3 lower half all the time, thereby reduces the energy consumption, improves the efficiency of breathing in.
Referring to fig. 8 and 9, a rear sealing strip 331 is interposed between the rear partition plate 33 and the inner wall of the rear dusting roller 3, and the rear sealing strip 331 is used for improving the sealing performance between the upper cavity and the lower cavity of the rear dusting roller 3 so as to reduce energy consumption.
Referring to fig. 8 and 9, a rear connecting strip 37 is fixed on the roller frame 11, and the rear connecting strip 37 is positioned on the side of the rear dusting roller 3 conveyed towards the conveying belt 13. The rear connecting bar 37 is provided with a rear air duct 38 axially disposed therein, and a rear air branch pipe 164 (see fig. 4) is connected to one end of the rear air duct 38, and the rear air branch pipe 164 is communicated with the rear air suction branch pipe 163 (see fig. 4). The rear connecting strip 37 is provided with a plurality of rear suction heads 39 (see fig. 4) aligned with the corresponding rear pressing rings 32, and the rear suction heads 39 are communicated with the rear air duct 38. Part of the dust adhering to the periphery of the rear abutment ring 32 can be sucked into the rear air duct 38 by the rear suction head 39 and finally conducted into the dust box 17 (see fig. 4).
Referring to fig. 8 and 9, a rear scraping piece 371 is fixed on the rear connecting strip 37, one side of the rear scraping piece 371 contacts with the peripheral walls of the rear pressing rings 32, and the rear scraping piece 371 is located below the rear suction head 39. Then, in the process of rotating the rear dust removing roller 3, dust adhered to the periphery of the rear pressing ring 32 can be scraped by the rear scraping sheet 371, and accumulated on the upper side of the rear scraping sheet 371, and then can be sucked by the rear suction head 39.
The specific implementation principle is as follows: in the process that the paper passes below the front dust removing roller 2 and the rear dust removing roller 3 in sequence, the front pressing ring 22 and the rear pressing ring 32 can be used for pressing the paper tightly on the conveying belt 13. The arrangement enables the paper to stably move on the conveyer belt 13 when the paper is used for dust collection. Meanwhile, the dust on the paper is sucked into the front and rear dust removing rollers 2 and 3 through the front and rear suction holes 21 and 31, respectively, and finally delivered into the dust box 17.
Because the projection of preceding pressing ring 22 and back pressing ring 32 in the plane of perpendicular to conveyer belt 13 direction of delivery does not have the coincidence, then the mode that preceding dust removal roller 2 and back dust removal roller 3 combination were removed dust, can be under the prerequisite of keeping the steady transport of paper, make the whole upper surface of dust removal scope cover paper, moreover because this scheme adopts absorb the dust removal, replaced and pasted the dust removal, then the dust on top layer can not only be absorbed, compare in the dust removal roller and paste the dust removal, dust collection efficiency is higher.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The utility model provides a dust collector of printing machine, includes frame (1), characterized by: a conveying belt (13) is installed in the rack (1), a roller frame (11) is connected in the rack (1), a front dust removing roller (2) and a rear dust removing roller (3) which are arranged in parallel are rotatably connected to the roller frame (11), the front dust removing roller (2) and the rear dust removing roller (3) are both positioned above the conveying belt (13), and the axis of the front dust removing roller (2) is perpendicular to the conveying direction of the conveying belt (13); a driving assembly (4) for driving the front dust removing roller (2) and the rear dust removing roller (3) to rotate is arranged on the roller frame (11); the front dust removing roller (2) and the rear dust removing roller (3) are both arranged in a hollow manner, the peripheral walls of the front dust removing roller and the rear dust removing roller are respectively provided with a front air suction hole (21) and a rear air suction hole (31), and one side of the rack (1) is provided with an air suction assembly (14) for sucking air in the front dust removing roller (2) and the rear dust removing roller (3); a plurality of front pressing rings (22) used for pressing paper on the conveying belt (13) are fixedly sleeved on the peripheral wall of the front dust removing roller (2); a plurality of rear pressing rings (32) used for pressing paper on the conveying belt (13) are fixedly sleeved on the peripheral wall of the rear dust removing roller (3); the projections of the front pressing ring (22) and the rear pressing ring (32) in a plane perpendicular to the conveying direction of the conveying belt (13) are not overlapped.
2. The dust removing device of a printing press according to claim 1, wherein: the air extraction assembly (14) comprises a main air suction pipe (16), an air extraction pump (15) arranged on the main air suction pipe (16), a front air suction branch pipe (161) used for connecting the interior of the front dust removal roller (2) with the main air suction pipe (16), and a rear air suction branch pipe (163) used for connecting the interior of the rear dust removal roller (3) with the main air suction pipe (16); a front connecting strip (27) and a rear connecting strip (37) are fixed on the roller frame (11), a front air duct (28) and a rear air duct (38) along respective axial directions are respectively arranged inside the front connecting strip (27) and inside the rear connecting strip (37), the front air duct (28) and the rear air duct (38) are respectively connected with a front ventilation branch pipe (162) and a rear ventilation branch pipe (164), and the front ventilation branch pipe (162) and the rear ventilation branch pipe (164) are both communicated with the air suction main pipe (16); a plurality of front suction heads (29) aligned to the front compression ring (22) are arranged on the front connecting strip (27), and the front suction heads (29) are communicated with the front air duct (28); the rear connecting strip (37) is provided with a plurality of rear suction heads (39) aligned to the rear pressing ring (32), and the rear suction heads (39) are communicated with the rear ventilation duct (38).
3. The dust removing device of a printing press according to claim 2, wherein: preceding connecting strip (27) are located preceding dust removal roller (2) and are carried one side towards conveyer belt (13), and back connecting strip (37) are located back dust removal roller (3) and are carried one side towards conveyer belt (13).
4. A dust removing device for a printing press according to claim 3, wherein: a front scraping material piece (271) is fixed on the front connecting strip (27), one side of the front scraping material piece (271) is in contact with the peripheral walls of the front pressing rings (22), and the front scraping material piece (271) is positioned below the front sucker (29); a rear scraping sheet (371) is fixed on the rear connecting strip (37), one side edge of the rear scraping sheet (371) is in contact with the peripheral walls of the rear pressing rings (32), and the rear scraping sheet (371) is positioned below the rear suction head (39).
5. The dust removing device of a printing press according to claim 2, wherein: a front partition plate (23) used for partitioning the interior of the front dust removing roller (2) into an upper cavity and a lower cavity is arranged in the front dust removing roller (2), front end plates (24) used for sealing the end parts of the front dust removing roller (2) are fixed at two ends of the front partition plate (23) along the axial direction of the front dust removing roller (2), the front end plates (24) are fixedly connected with the roller frame (11), and a front air suction branch pipe (161) is communicated into the cavity which is close to the lower part in the interior of the front dust removing roller (2);
the rear dust removing roller (3) is internally provided with a rear division plate (33) which is used for dividing the interior of the rear dust removing roller (3) into an upper cavity and a lower cavity, the rear division plate (33) is fixedly provided with a rear end plate (34) used for sealing the end part of the rear dust removing roller (3) along the axial two ends of the rear dust removing roller (3), the rear end plate (34) is fixedly connected with the roller frame (11), and a rear air suction branch pipe (163) is communicated into the cavity which is arranged in the rear dust removing roller (3) and is arranged at the lower part.
6. The dust removing device of a printing press as set forth in claim 5, wherein: a front sealing strip (231) is clamped between the front partition plate (23) and the inner wall of the front dust removing roller (2); a rear sealing strip (331) is clamped between the rear partition plate (33) and the inner wall of the rear dust removing roller (3).
7. The dust removing device of a printing press according to claim 1, wherein: and a lifting piece (12) for driving the roller frame (11) to lift is arranged on the frame (1).
8. The dust removing device of a printing press according to claim 1, wherein: the cross sections of the front air suction hole (21) and the rear air suction hole (31) are horn-shaped, and the aperture of one end, far away from the axis of the front dust removing roller (2), of the front air suction hole (21) is larger than the aperture of one end, close to the axis of the front dust removing roller (2), of the front air suction hole (21); the aperture of one end of the rear air suction hole (31) far away from the axis of the rear dust removing roller (3) is larger than that of one end of the rear air suction hole (31) close to the axis of the rear dust removing roller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810961278.3A CN109109455B (en) | 2018-08-22 | 2018-08-22 | Dust collector of printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810961278.3A CN109109455B (en) | 2018-08-22 | 2018-08-22 | Dust collector of printing machine |
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| CN109109455A CN109109455A (en) | 2019-01-01 |
| CN109109455B true CN109109455B (en) | 2020-05-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110815687B (en) * | 2019-11-28 | 2020-09-11 | 台州黄岩诚新环保科技股份有限公司 | PVC sheet calender |
| CN111231299A (en) * | 2020-03-17 | 2020-06-05 | 海宁海橡鞋材有限公司 | An Improved Imitation Leather Backsheet Laminating Device |
| CN111409359A (en) * | 2020-04-28 | 2020-07-14 | 孙婷婷 | Printing equipment for packing with automatic dust removal function |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003297633A1 (en) * | 2003-10-08 | 2005-05-26 | Les Bennett | Printing web cleaner |
| CN201692962U (en) * | 2010-06-07 | 2011-01-05 | 江阴金中达新材料有限公司 | Film surface dust-removing device |
| CN203381342U (en) * | 2013-07-09 | 2014-01-08 | 通达（厦门）光电科技有限公司 | Sticky roller device of printing machine |
| CN203637342U (en) * | 2013-11-26 | 2014-06-11 | 蚌埠市奥特纸箱机械有限公司 | Novel dust removal structure suitable for water-based fine printing |
| CN104228330A (en) * | 2014-08-25 | 2014-12-24 | 蚌埠市奥特纸箱机械有限公司 | Dust removing mechanism used for corrugated board printing machine |
| CN204820614U (en) * | 2015-07-19 | 2015-12-02 | 佛山运安激光制版有限公司 | But can partly scribble full coat printing roller device |
| CN205058822U (en) * | 2015-10-15 | 2016-03-02 | 西安航天华阳机电装备有限公司 | Printing machine dust collector |
| CN206027289U (en) * | 2016-08-31 | 2017-03-22 | 玉溪万利包装材料有限公司 | Cardboard printing dust collector |
| CN207001829U (en) * | 2017-05-26 | 2018-02-13 | 安徽霍山美文印刷有限公司 | A kind of dedusting pressure roller for printing machine paper feed mechanism |
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