CN215152875U

CN215152875U - Quick-change doctor blade device with side surface compressed

Info

Publication number: CN215152875U
Application number: CN202120447716.1U
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: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-12-14
Anticipated expiration: 2031-03-02

Abstract

The utility model provides a side compresses tightly quick change ink scraper device, its characterized in that: including the cavity that is equipped with the china ink chamber, locate the ink scraping sword on the cavity surface of china ink chamber both sides and locate the cavity both sides and can with the ink scraping sword compress tightly in clamp plate on the cavity, its characterized in that: still including running through the screw rod of cavity and both sides clamp plate, the screw rod both ends are equipped with and can fix the locking mechanism of clamp plate and cavity, the utility model has the advantages of easy dismounting is difficult for the printing ink that is infected with because of locking mechanism to be done the knot and lead to the dismouting difficulty.

Description

Quick-change doctor blade device with side surface compressed

Technical Field

The utility model relates to a printing field especially relates to a side compresses tightly quick change ink scraping knife device.

Background

As shown in fig. 5, in the conventional doctor blade device, a pressing plate is pressed by a pressing bolt above the doctor blade device, and then the doctor blade is pressed by the pressing plate, so that the doctor blade device has the following defects: 1. the pressing bolt for pressing the pressing plate needs to be detached by using a tool, so that the pressing bolt is relatively complex and low in detaching efficiency. 2. The position of the compression bolt is easily stained with printing ink, and the printing ink can be dried into a hard block, so that the disassembly is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a easy dismounting is provided, the side that is difficult for leading to dismantling the difficulty because of being infected with printing ink compresses tightly quick change ink scraping knife device.

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

the utility model provides a side compresses tightly quick change ink blade device which characterized in that: including the cavity that is equipped with the china ink chamber, locate the ink scraping sword on the cavity surface of china ink chamber both sides and locate the cavity both sides and can with the ink scraping sword compress tightly in clamp plate on the cavity, its characterized in that: the clamping device is characterized by further comprising a screw rod penetrating through the cavity and the pressing plates on the two sides, and locking mechanisms capable of fixing the pressing plates and the cavity are arranged at the two ends of the screw rod.

Because locking mechanism is in the both sides of cavity, be difficult for being infected with printing ink, can not lead to the dismouting difficulty because of the printing ink that is infected with is done, solved prior art and led to the problem of locking mechanism dismouting difficulty because of the printing ink is done.

As a preferred embodiment of the present invention, the locking mechanism includes a nut and a handle, the nut is fixed on the pressing plate on one side, the nut is provided with an internal thread hole, one end of the screw rod is connected to the handle and the other end is screwed into the internal thread hole.

During installation, the handle is rotated to enable the screw to be screwed and fixed in the nut, pressure is applied to the pressure plates on two sides simultaneously, the doctor blade is compressed, and installation is achieved. When the ink scraping device is disassembled, the screw rod is screwed out of the inner threaded hole of the nut, the screw rod can be pulled out, and the pressing plate and the ink scraping knife are taken down. The disassembly and assembly steps are simple, labor-saving and convenient, and special tools are not needed for assistance.

As an embodiment of the present invention, the pressing plate is C-shaped, and includes a main body, and is disposed on the first abutting portion of one end of the main body, and is disposed on the second abutting portion of the other end of the main body, the first abutting portion abuts against the doctor blade on the cavity, the second abutting portion abuts against the back of the cavity

As a preferred embodiment of the present invention, the contact surfaces of the pressing plate and the cavity and the doctor blade are oblique contact surfaces. Adopt the inclined contact surface, make the two can remain stable contact all the time and be difficult for appearing rocking and slide, have better installation steadiness.

As a preferred embodiment of the present invention, the cavity surfaces on both sides of the ink chamber are provided with oblique mounting surfaces, and the doctor blade is disposed on the mounting surfaces.

As a preferred embodiment of the present invention, the two sides of the back surface of the cavity are provided with inclined abutting surfaces.

As an embodiment of the present invention, the first abutting portion is provided with an adaptation the first abutting inclined plane of the installation surface, the second abutting portion is provided with an adaptation the second abutting inclined plane of the top surface, the first abutting portion is offset by the cooperation of the doctor blade on the installation surface, the second abutting portion is offset by the cooperation of the top surface, and the doctor blade is compressed and fixed on the installation surface.

The utility model discloses an actively advance the effect and lie in: the disassembly and assembly steps are simple, labor-saving and convenient, and special tools are not needed for assistance; the locking mechanism is not easy to be stained with printing ink, and the problem of difficult disassembly and assembly caused by drying of the stained printing ink is solved.

Drawings

The invention will be further described with reference to the accompanying drawings:

fig. 1 is a side sectional view of the present invention;

FIG. 2 is a cross-sectional view of one end of the locking mechanism;

FIG. 3 is another end sectional view of the locking mechanism;

FIG. 4 is a cross-sectional view of the chamber and platen;

FIG. 5 is a view of the prior art

Wherein: 100-cavity, 101-through hole, 110-ink cavity, 111-mounting surface, 120-doctor blade, 130-abutting surface, 200-pressing plate, 210-threaded hole, 220-main body part, 230-first abutting part, 231-first abutting inclined surface, 240-second abutting part, 241-second abutting inclined surface, 300-screw rod, 400-locking mechanism, 410-handle, 420-nut, 421-internal threaded hole, 430-cushion block, 431-bulge part, 440-first gasket, 450-second gasket.

Detailed Description

The present invention is further illustrated by the following examples.

As shown in fig. 1 and 4, a side-pressing quick-change doctor blade device includes a cavity 100 having an inner concave ink chamber 110 in the middle of the front surface, doctor blades 120 disposed on the surfaces of the cavity 100 on both sides of the ink chamber 110, pressing plates disposed on both sides of the cavity 100 and used for pressing the doctor blades 120, and a screw 300 penetrating through the cavity 100 and the pressing plates 200 on both sides, wherein two ends of the screw 300 are provided with locking mechanisms 400 capable of fixing the cavity 100 and the pressing plates 200.

Because the locking mechanism 400 is positioned at the two sides of the cavity 100, ink is not easy to be contaminated, the difficulty in dismounting caused by drying of the contaminated ink is avoided, and the problem that the locking mechanism is difficult to dismount and mount caused by drying of the ink in the prior art is solved.

The cavity 100 is transversely provided with a through hole 101, the press plate 200 is provided with a threaded hole 210 at a position corresponding to the through hole 101, the screw 300 is arranged in the through hole 101 in a penetrating way, and the end part of the screw 300 is provided with an external thread.

Referring to fig. 1 to 3, the locking mechanism 400 includes a handle 410, a nut 420, a spacer 430, a first washer 440, and a second washer 450.

The outer circumferential surface of the pad 430 is provided with external threads, a through hole is formed in the middle, a boss 431 is formed at one end, and the pad 430 is screwed into the threaded hole 210 of the pressing plate 200. The first gasket 440 is sleeved on the pad 430 and is disposed between the protrusion 431 and the outer wall of the pressing plate 200.

The nut 420 has an external thread on its outer circumferential surface and an internal thread hole in the middle. The nut 420 is screwed on the threaded hole 210 of the pressing plate, and the second gasket is sleeved on the nut 420 and is cushioned between the head of the nut 420 and the outer wall of the pressing plate 200.

One end of the screw 300 is screwed into the internal threaded hole of the nut 420, and the other end of the screw 300 extends out of the pressing plate 200 and the cushion block 430 and is fixed with the handle 410 in a threaded manner.

When the ink-jet printer is disassembled, the handle 410 is held to rotate the screw rod, the screw rod 300 is screwed out of the internal threaded hole of the nut 420, and then the screw rod 300 can be pulled out, and the pressing plate 200 and the doctor blade 120 can be taken down.

During installation, the cushion block 430 is installed on the upper pressing plate 200, the nut 420 is installed on the lower pressing plate 200, the handle 410 is installed on the screw rod 300, the screw rod 300 penetrates through the through hole in the middle of the cushion block 430 and the through hole 101 in the middle of the cavity 100 and is screwed into the internal threaded hole of the nut 420, the handle 410 is rotated to enable the screw rod 300 to be screwed and fixed in the nut 420, pressure is simultaneously applied to the pressing plates 200 on the two sides, and the doctor blade 120 is pressed tightly, so that installation is achieved.

It is visible, the utility model discloses a dismouting step is succinct, and is laborsaving convenient, and need not special instrument supplementary, compares prior art and uses more conveniently.

As shown in fig. 4, the surface of the chamber 100 on both sides of the ink chamber 110 has a mounting surface 111 that is gradually inclined toward the front of the chamber 100, the doctor blade 120 is disposed on the mounting surface 111, and the cutting edge of the doctor blade 120 extends into the ink chamber 110, so that the doctor blade 120 can scrape the ink on the printing roller into the ink chamber.

Both sides of the back surface (i.e. the surface facing away from the ink chamber 110) of the chamber 100 have abutting surfaces 130 which are gradually inclined towards the back surface of the chamber 100.

The pressing plate 200 is C-shaped, and includes a main body 220, a first abutting portion 230 disposed at one end of the main body 220, and a second abutting portion 240 disposed at the other end of the main body 220. The screw hole 210 is disposed on the main body 220, the first abutting portion 230 is disposed with a first abutting inclined surface 231 adapted to the mounting surface 111, and the second abutting portion 240 is disposed with a second abutting inclined surface 241 adapted to the abutting surface 130. The first abutting inclined surface 231 is matched and abutted with the doctor blade 120 on the mounting surface 111, and the second abutting inclined surface 241 is matched and abutted with the abutting surface 130, so that the doctor blade 120 is tightly pressed and fixed on the mounting surface 111.

Because the contact surfaces among the pressure plate 200, the cavity 100 and the doctor blade 120 are oblique contact surfaces, the pressure plate and the cavity can be always in stable contact without shaking and sliding easily, and the mounting stability is better.

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 side compresses tightly quick change ink blade device which characterized in that: including the cavity that is equipped with the china ink chamber, locate the ink scraping sword on the cavity surface of china ink chamber both sides and locating the cavity both sides just can with the ink scraping sword compress tightly in clamp plate on the cavity, its characterized in that: the clamping device is characterized by further comprising a screw rod penetrating through the cavity and the pressing plates on the two sides, and locking mechanisms capable of fixing the pressing plates and the cavity are arranged at the two ends of the screw rod.

2. The side impact quick change doctor blade assembly as claimed in claim 1, wherein: the locking mechanism comprises a nut and a handle, the nut is fixed on the pressing plate on one side, an internal thread hole is formed in the nut, one end of the screw is connected with the handle, and the other end of the screw is screwed into the internal thread hole.

3. The side impact quick change doctor blade assembly as claimed in claim 1, wherein: the pressing plate is C-shaped and comprises a first abutting part abutting against the doctor blade on the cavity and a second abutting part abutting against the back face of the cavity.

4. The side impact quick change doctor blade unit as claimed in claim 3, wherein: the contact surfaces of the pressure plate, the cavity and the doctor blade are oblique contact surfaces.

5. The side impact quick change doctor blade assembly as claimed in claim 4, wherein: the ink box is characterized in that inclined mounting surfaces are arranged on the surfaces of the cavities on the two sides of the ink cavity, and the ink scraping knife is arranged on the mounting surfaces.

6. The side impact quick change doctor blade assembly as claimed in claim 5, wherein: two sides of the back of the cavity are provided with obliquely arranged abutting surfaces.

7. The side impact quick change doctor blade unit as claimed in claim 6, wherein: the first abutting part is provided with a first abutting inclined surface abutting against the doctor blade, and the second abutting part is provided with a second abutting inclined surface abutting against the abutting surface.