CN101890733A - Doctor blade cutting device and method - Google Patents

Doctor blade cutting device and method Download PDF

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Publication number
CN101890733A
CN101890733A CN 201010219034 CN201010219034A CN101890733A CN 101890733 A CN101890733 A CN 101890733A CN 201010219034 CN201010219034 CN 201010219034 CN 201010219034 A CN201010219034 A CN 201010219034A CN 101890733 A CN101890733 A CN 101890733A
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CN
China
Prior art keywords
cutting
wing
cutter
cutter apron
assembly
Prior art date
Application number
CN 201010219034
Other languages
Chinese (zh)
Inventor
唐小强
Original Assignee
珠海天威飞马打印耗材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 珠海天威飞马打印耗材有限公司 filed Critical 珠海天威飞马打印耗材有限公司
Priority to CN 201010219034 priority Critical patent/CN101890733A/en
Publication of CN101890733A publication Critical patent/CN101890733A/en

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Abstract

The invention provides a doctor blade cutting method. The method comprises the following steps of: positioning a doctor blade on a cutting platform; compressing the doctor blade to generate a certain tension by using a doctor blade compressing assembly; cutting the doctor blade along a predetermined cutting direction by using a cutter; and in an instant of cutting, separating cutting surfaces of the doctor blade from the cutting edge of the cutter. The certain tension is endowed by the doctor blade compressing assembly when the doctor blade is cut, and the cutting surfaces of the doctor blade are separated from the cutting edge of the cutter instantly when the cutting edge of the cutter is cut into the doctor blade, so the two sides of the cutting edge are not affected by frictional forces of the cutting surfaces of the doctor blade basically. Compared with the situation of bearing a side pressure, the cutter can be fed straight in a cutting direction so as to improve the straightness of the cutting surfaces of the doctor blade. In addition, the invention also provides a doctor blade cutting device for implementing the method.

Description

A kind of doctor blade cutting device and method

Technical field

The present invention relates to a kind of doctor blade cutting device, also relate to a kind of wing cutting-off method simultaneously.

Background technology

Usually at laser copier, printer, in the image processing systems such as facsimile machine, be by carrying the laser beam flying photosensitive drum surface of digital information, make photosensitive drum surface form carbon dust that electrostatic latent image that current potential differs adsorbs static electrification again and form the carbon dust image and be transferred on the paper.

Because the carbon dust on drum surface can't 100% transferred on the paper, these residual carbon dusts must be eliminated in next print procedure, because these carbon dusts can influence cloth electricity and exposure image.Yet, as the cleaning device of removing residual carbon dust of photosensitive drum surface and foreign matter, well-known is to contact with it in the marginal portion of photosensitive drum surface with the tabular cleaning doctor of materials such as rubber-like polyurethane formation, when photosensitive drums is rotated, assign to scrape carbon dust and other attachment of photosensitive drum surface with the edge part of cleaning doctor.The tabular wing that this cleaning doctor will form with elastomeric material cuts off with the width that sets, and assign to scrape with the formed edge part of section in advance.

In existing doctor blade cutting device, normally wing is fixed on the cutting table flat board, cut off with cutter arrangement then.Yet, when using cutter to cut off the wing that is placed on the cutting table, when the blade of cutter is cut wing, both sides at blade, the section of wing has the contact with it of elastic force ground, thereby has produced the frictional force between blade and the wing section, and this frictional force acts on blade as side pressure, this side pressure makes that the straight feed of cutter on cut direction hindered, thereby is difficult to guarantee the linearity of the section of wing.

Summary of the invention

First purpose of the present invention is the defective at prior art, and a kind of doctor blade cutting device that can guarantee the section linearity of wing simply is provided.

Second purpose of the present invention is to provide a kind of wing cutting-off method that can guarantee the section linearity of wing simply.

For realizing above-mentioned first purpose, the present invention has adopted following technical scheme: design a kind of doctor blade cutting device, comprise frame and the cutting table that is arranged on this frame, this cutting table has the stationary plane that is used for fixing described wing; Wherein, also be provided with on the described frame and be used for to be fixed on that wing on the described cutting table compresses and the cutting tool assembly that makes its wing that produces tensile stress hold down assembly and be used to cut off described wing, described wing hold down assembly be installed in described frame on wing compress driver and be connected, described cutting tool assembly is connected with cutting driver on being installed in described frame.

Preferably, described cutting tool assembly is positioned at the below of described cutting table, and this cutting tool assembly comprises cutting knife and be used to keep the cutter holder assembly of described cutting knife that described cutter holder assembly can reciprocatingly be arranged on the guide rail that is fixed in described frame along described cut direction; Described cutter holder assembly comprised the shell that is fixed on the cutter holder assembly base plate and has been arranged on Cutter apron in this shell rotationally, and this Cutter apron links to each other with the Cutter apron hold-down mechanism that is used to control the Cutter apron rotating mechanism of its rotation and is used to limit its rotation.

Preferably, described cutter holder assembly base plate is slidingly matched by the slide block and the formation of described guide rail of its bottom, described Cutter apron rotating mechanism comprises the Cutter apron rotation cylinder that is fixed on the described cutter holder assembly base plate, this Cutter apron rotation cylinder is connected with described Cutter apron by the connecting rod that has drive pin, and described drive pin forms eccentric the cooperation with this Cutter apron; Described Cutter apron hold-down mechanism comprises the Cutter apron clamping cylinder that is fixed on the described shell, and being provided with in the described shell can be by the Cutter apron compact heap of this Cutter apron clamping cylinder driving, and described Cutter apron is between the inwall of this Cutter apron compact heap and described shell.

Preferably, described wing holds down assembly and is positioned at the top of described cutting table, this wing holds down assembly and has comprised tension block in the centre, is connected two compact heaps of these tension block both sides and has been arranged at spring between described tension block and the compact heap, but described tension block forms cooperating of relative motion with described compact heap in the vertical direction, and the bottom of described tension block has the cutter seam.

Preferably, the direction of described tensile stress is perpendicular to described cut direction.

For realizing above-mentioned second purpose, the present invention has adopted following technical scheme: a kind of wing cutting-off method is provided, comprises described wing is fixed on positioning step on the cutting table; The compaction step of utilizing wing to hold down assembly described wing is compressed makes described wing produce certain tensile stress; The cut-out step of utilizing cutting knife along predetermined cut direction described wing to be cut off in the moment of cutting off, makes the blade separation of the section of described wing from described cutting knife.

Preferably, in described compaction step, described wing holds down assembly and is positioned at the top of described cutting table, this wing holds down assembly and has comprised tension block in the centre, is connected two compact heaps of these tension block both sides and has been arranged at spring between described tension block and the compact heap, and the bottom of described tension block has the cutter seam; Utilizing wing to compress driver holds down assembly described wing and presses down, when it touches described wing, at first compressed the both sides of described wing by described two compact heaps, the elastic force that makes described tension block overcome described spring then continues to press down and makes described wing tensioning.

Preferably, in described cut-out step, described cutting knife remains on the cutter holder assembly, and this cutter holder assembly can reciprocatingly be arranged on the guide rail along described cut direction; Described cutter holder assembly comprised the shell that is fixed on the cutter holder assembly base plate and has been arranged on Cutter apron in this shell rotationally, and this Cutter apron links to each other with the Cutter apron clamping cylinder that is used to control the Cutter apron rotation cylinder of its rotation and is used to limit its rotation; Utilizing described Cutter apron rotation cylinder to promote described Cutter apron rotates to an angle around himself rotating shaft, make described cutting knife rise to the extreme higher position, utilize described Cutter apron clamping cylinder to promote a Cutter apron compact heap then and described Cutter apron is pressed on the inwall of described shell, after compressing, utilize cutting described cutter holder assembly of driver drives and cutting knife fast moving and cut off described wing.

Preferably, in described positioning step that described wing and doctor blade holder is bonding in advance, utilize screw that described doctor blade holder is fixed on the location-plate, location-plate is installed in the groove of described cutting table then.

Preferably, the direction of described tensile stress is perpendicular to described cut direction.

Beneficial effect of the present invention is: given certain tensile stress because wing is held down assembly by wing when being cut off, when the blade of cutting knife is cut wing, the section of wing is from the cutting blade moment separation of cutting knife, therefore substantially no longer be subjected to the frictional force effect of wing section in the both sides of blade, situation when bearing side pressure is come, cutting knife can feed as the crow flies on cut direction, thereby improves the linearity of the section of wing.

Description of drawings

Fig. 1 is the front view of a kind of doctor blade cutting device of the present invention.

Fig. 2 is the A-A cutaway view of doctor blade cutting device shown in Figure 1.

Fig. 3 is the structural representation (not shown Cutter apron cover plate) of the cutting tool assembly in the doctor blade cutting device shown in Figure 1.

Fig. 4 is the positioning states schematic diagram of wing on cutting table.

Fig. 5 is wing compressing and the tensioning state schematic diagram on cutting table.

Fig. 6 is the dissengaged positions schematic diagram of wing on cutting table.

The specific embodiment

Referring to Fig. 1 and Fig. 2, a kind of doctor blade cutting device of the present invention has comprised that frame, cutting table 4, cutting tool assembly 50, wing hold down assembly 40 etc., described frame has comprised base plate 10, top board 2 and two blocks of side plates 3, cutting table 4 is installed in the lateral groove of two blocks of side plates 3, adjust positions and height by adjusting screw 15 with adjusting fixed block 14, and lock by lock screw 5.

Referring to Fig. 2 and Fig. 3, cutting tool assembly 50 is positioned at the below of cutting table 4, this cutting tool assembly 50 has comprised cutter holder assembly and cutting knife 28, the shell of cutter holder assembly is made up of cutterhead 11 and Cutter apron cover plate 6, this shell is fixed on the cutter holder assembly base plate 7, fixedly connected with two slide blocks 32 in the bottom of cutter holder assembly base plate 7, two slide blocks 32 form with two line slideways 8 respectively and are slidingly matched, by the driving of cutting driver 9 (can use Rodless cylinder), cutter holder assembly base plate 7 can reciprocally slide along two line slideways 8.Cutter apron 27 is installed in cutterhead 11 inside, and cutting knife 28 is installed on the Cutter apron 27 with the attitude of edge tilted 45 degree, and is fixed by cutting knife fixture block 21.Cutter apron rotation cylinder 24 can the connecting rod 33 by having drive pin 25 promote Cutter aprons 27 around the shaft 26 certain angles rotatablely move, thereby realize falling and rising of cutting knife 28, Cutter apron rotation cylinder 24 is fixed on the cutter holder assembly base plate 7 by air cylinder fixed plate 23.Cutter apron clamping cylinder 12 also is installed on the cutterhead 11, and this Cutter apron clamping cylinder 12 can promote Cutter apron compact heap 13 and Cutter apron 27 is pressed on the Cutter apron cover plate 6, thereby makes Cutter apron 27 26 rotations around the shaft.

Referring to Fig. 4, wing 30 to be located on cutting table 4, wing 30 is natural rubber or polyurethane material, and it is tabular that it forms rectangle, and it can be independently also can be bonding in advance with doctor blade holder 29 during cut-out.The groove that location-plate 31 is installed is arranged on the cutting table 4, and location-plate 31 for wing 30 and the bonding in advance situation of doctor blade holder 29, utilizes screw that doctor blade holder 29 is fixed on the location-plate 31 according to the model design of scraper.Wing hold down assembly 40 be installed in top board 2 on wing compress that driver 1 is connected and the top that is arranged on cutting table 4, this wing holds down assembly and 40 is connected to form by connecting axle 18 by compact heap 16,20 and tension block 19, compact heap 16,20 and connecting axle 18 are interference fit, connecting axle 18 can slide in the slotted eye 34 of tension block 19, be provided with spring 17 between compact heap 16,20 and the tension block 19, the bottom of tension block 19 has cutter seam 35.

Referring to Fig. 5 and Fig. 6, method of work is described as follows: start the wing that is installed on the top board 2 and compress driver 1, wing held down assembly 40 press down, when it touches wing 30, at first compress the both sides of wing 30 by compact heap 16,20, tension block 19 elastic force that overcomes spring 17 continues to press down then, make wing 30 have certain force of strain, after putting in place, Cutter apron rotation cylinder 24 promotes Cutter apron 27 and 26 rotates to an angle around the shaft, makes cutting knife 28 rise to the extreme higher position.Cutter apron clamping cylinder 12 promotes Cutter apron compact heaps 13 and Cutter apron 27 is pressed on the Cutter apron cover plate 6 at this moment, and after compressing, cutting driver 9 drives cutterhead 11 fast moving and also cuts off wing 30.

In sum, because wing 30 is held down assembly by wing when being cut off and has given certain tensile stress, when the blade of cutting knife 28 is cut wing 30, the section of wing 30 is from the blade moment separation of cutting knife 28, therefore substantially no longer be subjected to the frictional force effect of wing 30 sections in the both sides of blade, situation when bearing side pressure is come, and cutting knife 28 can feed as the crow flies on cut direction, thereby improves the linearity of the section of wing 30.

Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, and these all belong to protection scope of the present invention.For example, each driver that uses in the middle of the foregoing description is except can using drivers such as hydraulic cylinder or electric cylinder to replace certainly as the cylinder.Apparatus and method of the present invention can also be used to cut any elastic sheet materials such as powder delivery blade except being used to cut the wing of cleaning doctor.

Claims (10)

1. a doctor blade cutting device comprises frame and the cutting table that is arranged on this frame, and this cutting table has the stationary plane that is used for fixing described wing;
It is characterized in that, also be provided with on the described frame and be used for to be fixed on that wing on the described cutting table compresses and the cutting tool assembly that makes its wing that produces tensile stress hold down assembly and be used to cut off described wing, described wing hold down assembly be installed in described frame on wing compress driver and be connected, described cutting tool assembly is connected with cutting driver on being installed in described frame.
2. doctor blade cutting device according to claim 1, it is characterized in that: described cutting tool assembly is positioned at the below of described cutting table, this cutting tool assembly comprises cutting knife and is used to keep the cutter holder assembly of described cutting knife that described cutter holder assembly can reciprocatingly be arranged on the guide rail that is fixed in described frame along described cut direction; Described cutter holder assembly comprised the shell that is fixed on the cutter holder assembly base plate and has been arranged on Cutter apron in this shell rotationally, and this Cutter apron links to each other with the Cutter apron hold-down mechanism that is used to control the Cutter apron rotating mechanism of its rotation and is used to limit its rotation.
3. doctor blade cutting device according to claim 2, it is characterized in that: described cutter holder assembly base plate is slidingly matched by the slide block and the formation of described guide rail of its bottom, described Cutter apron rotating mechanism comprises the Cutter apron rotation cylinder that is fixed on the described cutter holder assembly base plate, this Cutter apron rotation cylinder is connected with described Cutter apron by the connecting rod that has drive pin, and described drive pin forms eccentric the cooperation with this Cutter apron; Described Cutter apron hold-down mechanism comprises the Cutter apron clamping cylinder that is fixed on the described shell, and being provided with in the described shell can be by the Cutter apron compact heap of this Cutter apron clamping cylinder driving, and described Cutter apron is between the inwall of this Cutter apron compact heap and described shell.
4. doctor blade cutting device according to claim 1, it is characterized in that: described wing holds down assembly and is positioned at the top of described cutting table, this wing holds down assembly and has comprised tension block in the centre, is connected two compact heaps of these tension block both sides and has been arranged at spring between described tension block and the compact heap, but described tension block forms cooperating of relative motion with described compact heap in the vertical direction, and the bottom of described tension block has the cutter seam.
5. doctor blade cutting device according to claim 1 is characterized in that: the direction of described tensile stress is perpendicular to described cut direction.
6. wing cutting-off method comprises described wing is fixed on positioning step on the cutting table;
It is characterized in that described method also comprises:
The compaction step of utilizing wing to hold down assembly described wing is compressed makes described wing produce certain tensile stress;
The cut-out step of utilizing cutting knife along predetermined cut direction described wing to be cut off in the moment of cutting off, makes the blade separation of the section of described wing from described cutting knife.
7. wing cutting-off method according to claim 6, it is characterized in that: in described compaction step, described wing holds down assembly and is positioned at the top of described cutting table, this wing holds down assembly and has comprised tension block in the centre, is connected two compact heaps of these tension block both sides and has been arranged at spring between described tension block and the compact heap, and the bottom of described tension block has the cutter seam; Utilizing wing to compress driver holds down assembly described wing and presses down, when it touches described wing, at first compressed the both sides of described wing by described two compact heaps, the elastic force that makes described tension block overcome described spring then continues to press down and makes described wing tensioning.
8. wing cutting-off method according to claim 6 is characterized in that: in described cut-out step, described cutting knife remains on the cutter holder assembly, and this cutter holder assembly can reciprocatingly be arranged on the guide rail along described cut direction; Described cutter holder assembly comprised the shell that is fixed on the cutter holder assembly base plate and has been arranged on Cutter apron in this shell rotationally, and this Cutter apron links to each other with the Cutter apron clamping cylinder that is used to control the Cutter apron rotation cylinder of its rotation and is used to limit its rotation; Utilizing described Cutter apron rotation cylinder to promote described Cutter apron rotates to an angle around himself rotating shaft, make described cutting knife rise to the extreme higher position, utilize described Cutter apron clamping cylinder to promote a Cutter apron compact heap then and described Cutter apron is pressed on the inwall of described shell, after compressing, utilize cutting described cutter holder assembly of driver drives and cutting knife fast moving and cut off described wing.
9. wing cutting-off method according to claim 6, it is characterized in that: in described positioning step, described wing and doctor blade holder is bonding in advance, utilize screw that described doctor blade holder is fixed on the location-plate, location-plate is installed in the groove of described cutting table then.
10. wing cutting-off method according to claim 6 is characterized in that: the direction of described tensile stress is perpendicular to described cut direction.
CN 201010219034 2010-07-07 2010-07-07 Doctor blade cutting device and method CN101890733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010219034 CN101890733A (en) 2010-07-07 2010-07-07 Doctor blade cutting device and method

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CN 201010219034 CN101890733A (en) 2010-07-07 2010-07-07 Doctor blade cutting device and method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286817A (en) * 2013-06-28 2013-09-11 贵州贵航汽车零部件股份有限公司 Manufacturing method and device of fixed-length cut-off perforating machine for automobile sealing strip

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918337A (en) * 1975-01-07 1975-11-11 Xerox Corp Cutting device for elastomeric sheet material
JPH0230488A (en) * 1988-07-20 1990-01-31 Anzai Kasei Kogyo Kk Method and device for cutting soft plastic sheet
JP3157327B2 (en) * 1993-02-02 2001-04-16 バンドー化学株式会社 Manufacturing method of cleaning blade
JP2004114231A (en) * 2002-09-26 2004-04-15 Mitsubishi Heavy Ind Ltd Cutting apparatus and cutting method for rubber tire
CN101224587A (en) * 2007-01-15 2008-07-23 株式会社理光 Cleaning scraper cutting method and device
CN201760906U (en) * 2010-07-07 2011-03-16 珠海天威飞马打印耗材有限公司 Scraper blade cutting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918337A (en) * 1975-01-07 1975-11-11 Xerox Corp Cutting device for elastomeric sheet material
JPH0230488A (en) * 1988-07-20 1990-01-31 Anzai Kasei Kogyo Kk Method and device for cutting soft plastic sheet
JP3157327B2 (en) * 1993-02-02 2001-04-16 バンドー化学株式会社 Manufacturing method of cleaning blade
JP2004114231A (en) * 2002-09-26 2004-04-15 Mitsubishi Heavy Ind Ltd Cutting apparatus and cutting method for rubber tire
CN101224587A (en) * 2007-01-15 2008-07-23 株式会社理光 Cleaning scraper cutting method and device
CN201760906U (en) * 2010-07-07 2011-03-16 珠海天威飞马打印耗材有限公司 Scraper blade cutting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286817A (en) * 2013-06-28 2013-09-11 贵州贵航汽车零部件股份有限公司 Manufacturing method and device of fixed-length cut-off perforating machine for automobile sealing strip

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