CN212472803U

CN212472803U - Back compresses tightly quick change ink blade device

Info

Publication number: CN212472803U
Application number: CN202020890693.7U
Authority: CN
Inventors: 李雄; 刘扬
Original assignee: Shanghai Mingqian Printing Equipment Co ltd
Current assignee: Shanghai Mingqian Printing Equipment Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-02-05
Anticipated expiration: 2030-05-25

Abstract

The utility model provides a back compresses tightly quick change ink scraping knife device, be in including cavity, dress clamp plate on the cavity and compressed tightly and be fixed in ink scraping knife between cavity and clamp plate, its characterized in that: the cross-section of clamp plate is C shape, including extending to the positive portion that compresses tightly of cavity, extend to the portion and the connection of screwing up at the cavity back screw up the portion and compress tightly the connecting portion of portion, the ink scraping sword by the centre gripping in compress tightly between portion and the cavity, screw up and be equipped with the device of screwing up in the portion, screw up during the device, can drive the clamp plate court the back direction of cavity removes, adopts such structure, owing to screw up the device and be located the cavity back, can not be infected with printing ink, has just also avoided leading to the problem of dismouting difficulty because of printing ink dry knot.

Description

Back compresses tightly quick change ink blade device

Technical Field

The utility model belongs to the printing industry field especially relates to a back compresses tightly quick change ink scraping knife device.

Background

The existing doctor blade device is mainly characterized in that a pressure plate is pressed by bolts and then a doctor blade is pressed by the pressure plate as shown in fig. 3, and the technical scheme has the following defects: 1. the position of the bolt is easily stained with printing ink, and the printing ink can be dried into a hard block, so that the disassembly is difficult; 2. the bolt of the pressing plate needs to be disassembled by using tools, so that the disassembling is more complicated and the disassembling efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a novel back compress tightly quick change ink scraping knife device is provided, the easy problem that leads to the dismouting difficulty because of the printing ink dry knot that can solve prior art exists.

The utility model discloses a this technical problem is solved to following mode:

the utility model provides a back compresses tightly quick change ink blade device, includes the cavity, is adorned clamp plate on the cavity and compressed tightly and be fixed in the ink blade between cavity and clamp plate, its characterized in that: the cross-section of clamp plate is C shape, including extending to the positive portion that compresses tightly of cavity, extend to the portion and the connection of screwing up at the cavity back screw up the portion and compress tightly the connecting portion of portion, the ink scraping sword by the centre gripping in compress tightly between portion and the cavity, be equipped with the device of screwing up in the portion of screwing up, screw when screwing up the device, can drive the clamp plate court the back direction of cavity removes.

By adopting the structure, the screwing device is positioned on the back surface of the cavity body, so that ink cannot be polluted, and the problem of difficulty in dismounting due to drying of the ink is avoided.

As a preferred embodiment of the present invention, the tightening device includes a screw hole formed in the tightening portion and a bolt screwed into the screw hole, and a head of the bolt abuts against a back surface of the cavity. Only by screwing the bolt, the pressing part of the cavity can be driven to move towards the direction of the back of the cavity, so that the doctor blade is tightly clamped and fixed between the pressing part of the pressing plate and the cavity.

The utility model discloses another problem that will solve makes the dismouting of ink scraping knife more simple and convenient, consequently is in the utility model discloses a in the further improvement, the bolt is twisted for the hand, need not like this additionally with the help of the loading and unloading that the instrument just can bare-handed realization ink scraping knife, convenient and fast.

As a preferred embodiment of the utility model, the positive middle part of cavity has the recess that extends along whole cavity, the both sides of recess are the cutter and place the face, the ink scraping sword place in on the cutter is placed the face, the portion that compresses tightly of clamp plate with the cooperation of cutter is placed the face and is offseted.

As a preferred embodiment of the present invention, the cutter-placing surface is a stepped inclined surface.

As a preferred embodiment of the utility model, the cutter is placed the face from interior to exterior and is included first slope and second slope in proper order, first slope is less than the second slope form a flange between first slope and the second slope, the ink scraping sword is located on the first slope, the portion that compresses tightly catches on the flange. By adopting the structure, the doctor blade can be more firmly fixed, and meanwhile, the pressing plate can be prevented from sliding off the cavity.

More than synthesizing, this back compresses tightly quick change ink scraping sword device has easy dismounting, can not lead to being difficult to the advantage of dismantling because of the printing ink that is infected with is dried and hardens.

Drawings

The present invention will be further explained with reference to the following drawings:

FIG. 1 is a sectional view of the present back side compression quick change doctor blade;

FIG. 2 is a rear view of the present rear hold down quick change doctor blade;

FIG. 3 is a view of a prior art doctor blade;

100-cavity, 101-groove, 102-cutter placing surface, 103-first slope surface, 104-second slope surface, 105-rib, 200-pressing plate, 201-pressing part, 202-tightening part, 203-connecting part, 204-screw hole, 300-bolt and 400-doctor blade.

Detailed Description

The invention is further illustrated below by means of specific examples:

fig. 1 shows a cross-sectional view of the present back-pressing quick-change doctor blade device, which includes a cavity 100, a pressing plate 200, a bolt 300 and a doctor blade 400.

The cavity 100 has a recess 101 extending along the entire cavity 100 in the middle of the front surface thereof, and tool-placing surfaces 102 are provided on both sides of the recess 101. The doctor blade 400 is disposed on the blade mounting surface 102 on both sides, and the blade edge of the doctor blade 400 is inserted into the groove 100.

Referring to fig. 1 and 2, two sets of pressure plates 200 are mounted on two sides of the chamber 100. The pressing plate 200 has a C-shaped cross section, and includes a pressing portion 201, a tightening portion 202, and a connecting portion 203 connected to one side of the pressing portion 201 and the tightening portion 202. The inner surface of the pressing portion 201 is fitted to the tool mounting surface 102, and the tightening portion 202 is provided with a plurality of screw holes 204 through which the bolts 300 are inserted in the lateral direction. The distance between the pressing portion 201 and the tightening portion 202 is slightly larger than the thickness of the cavity 100.

When the scraper is installed, the doctor blade 400 is firstly placed on the cutter placing surface 102; then, the pressing plates 200 are arranged at the two sides of the cavity 100, the pressing parts 201 of the pressing plates 200 are matched and abutted against the cutter placing surface 102, and the tightening parts 202 of the pressing plates 200 are arranged opposite to the back surface of the cavity 100; then, the bolt 300 is screwed into the screw hole 204 of the tightening part 202, so that the bolt 300 abuts against the back surface of the cavity 100, and the pressing part 201 of the pressing plate 200 is driven to move toward the back surface of the cavity 100, so that the doctor blade 400 is tightly clamped and fixed between the pressing part 201 of the pressing plate 200 and the blade mounting surface 102 of the cavity 100.

In order to facilitate the assembly and disassembly, the bolt 300 is preferably screwed by hands, the structure is adopted, the ink scraper 400 can be assembled and disassembled by hands without extra tools, the operation is convenient and rapid, meanwhile, the bolt 300 is positioned on the back of the cavity 100 and cannot be stained with ink, and the problem that the bolt 300 is difficult to take down due to dry and hard ink is solved.

As shown in fig. 1, in order to ensure the reliable installation of the doctor blade 400 and prevent the pressing plate 200 from sliding off the cavity 100, the blade placing surface 102 is a stepped slope surface, which includes a first slope surface 103 and a second slope surface 104 from inside to outside. The first slope surface 103 is lower than the second slope surface 104, and a rib 105 perpendicular to the first slope surface 103 and the second slope surface 104 is formed at the boundary of the first slope surface and the second slope surface, thereby forming the step slope structure.

The inclination of the first slope surface 103 and the second slope surface 104 is determined according to the actual use condition, in the present invention, the first slope surface 103 and the second slope surface 104 are parallel to each other, and the inclination angle is 15-20 °.

The doctor blade 400 is arranged on the first slope surface 103, and the blocking edge 105 is used for blocking the blade back of the doctor blade 400, so that the doctor blade 400 is prevented from being compressed and retracted when in use, and the stability of the doctor blade 400 is improved.

The pressing portion 201 of the pressing plate 200 is adapted to the shape of the tool placing surface 102, so that the portion of the pressing portion 201 corresponding to the rib 105 can hook the rib 105 on the tool placing surface 102, and the pressing plate 200 is prevented from sliding off the cavity 100.

However, those skilled in the art should realize that the above embodiments are only for illustrative purposes and are not to be used as limitations of the present invention, and that changes and modifications to the above embodiments are intended to fall within the scope of the appended claims, as long as they fall within the true spirit of the present invention.

Claims

1. The utility model provides a back compresses tightly quick change doctor blade device, includes cavity (100), dress clamp plate (200) on cavity (100) and is compressed tightly and is fixed in doctor blade (400) between cavity (100) and clamp plate (200), its characterized in that: the cross-section of clamp plate (200) is C shape, including extending to the positive portion (201) that compresses tightly of cavity (100), extend to screw up portion (202) and the connection at the cavity (100) back screw up portion (202) and connecting portion (203) that compress tightly portion (201), doctor blade (400) are fixed in compress tightly between portion (201) and cavity (100), be equipped with the tightening device on screwing up portion (202), screw up during the tightening device, can drive clamp plate (200) court the back direction of cavity (100) removes.

2. The backface compressing, quick change doctor blade apparatus as claimed in claim 1, wherein: the tightening device comprises a screw hole (204) formed in the tightening portion (202) and a bolt (300) screwed into the screw hole (204), and the head of the bolt (300) abuts against the back face of the cavity (100).

3. The backface compressing, quick change doctor blade apparatus as claimed in claim 2, wherein: the bolt (300) is a hand-screwed bolt.

4. The backface compressing, quick change doctor blade apparatus as claimed in claim 1, wherein: the middle part of the front surface of the cavity (100) is provided with a groove (101) extending along the whole cavity (100), two sides of the groove (101) are provided with cutter placing surfaces (102), the doctor blade (400) is placed on the cutter placing surfaces (102), and a pressing part (201) of the pressing plate (200) is matched and abutted with the cutter placing surfaces (102).

5. The backface compressing, quick change doctor blade apparatus as claimed in claim 4, wherein: the cutter placing surface (102) is a step inclined surface.

6. The backface compressing, quick change doctor blade apparatus as claimed in claim 5, wherein: the cutter placing surface (102) sequentially comprises a first slope surface (103) and a second slope surface (104) from inside to outside, the first slope surface (103) is lower than the second slope surface (104), so that a flange (105) is formed between the first slope surface (103) and the second slope surface (104), the doctor blade (400) is arranged on the first slope surface (103), and a pressing part (201) of the pressing plate (200) hooks the flange (105).