CN211641340U - Printing machine and scraping blade angle adjusting device thereof - Google Patents

Abstract

The utility model discloses a printing machine and ink scraping blade angle adjusting device thereof, wherein, printing machine ink scraping blade adjusting device includes: the doctor blade mounting seat is movably arranged on the doctor blade guide rod and can rotate back and forth around a straight line which is basically vertical to the axial lead of the doctor blade guide rod; the lifting plate is hinged with the seat body of the doctor blade mounting seat; and the lifting plate driving mechanism is used for driving the lifting plate to reciprocate within a preset height range so as to drive the doctor blade mounting seat to reciprocate within a preset angle range around a straight line which is basically vertical to the axial lead of the doctor blade guide rod. In the ink scraping knife angle adjusting device, the lifting plate driving mechanism drives the lifting plate to reciprocate within a preset height range, so that the ink scraping knife is driven to be installed in a reciprocating rotation manner within a preset angle range around a straight line which is basically perpendicular to the axial lead of the ink scraping knife guide rod, the adjustment of the angle of the ink scraping knife is automatically completed, the use is convenient, and the adjusting precision is high.

Description

Printing press and its squeegee angle adjustment device

technical field

The present application relates to the technical field of squeegee modules for printing presses, and in particular to a printing press and an angle adjustment device for a squeegee blade.

Background technique

A screen printing machine is a machine that uses a screen printing plate to perform printing, which is a type of printing machine. The commonly known screen printing machine is a flat screen printing machine, which uses a flat screen plate to print on a flat substrate. Generally, a squeegee is pressed against the screen printing plate to move horizontally, and the substrate is printed. print.

In the traditional doctor blade module, the adjustment of the doctor blade angle is mostly realized by using the rotating handwheel to drive the doctor blade mounting seat to rotate, which is very inconvenient to use and has low precision.

Utility model content

The present application aims to provide a printing press and an angle adjustment device of the doctor blade, which is convenient for adjusting the angle of the doctor blade and has high adjustment precision.

According to a first aspect of the present application, the present application provides a squeegee angle adjustment device for a printing press, comprising:

Squeegee mount for installing squeegee;

a fixing frame, the top of the fixing frame is fixed on the squeegee guide rod of the printing press, the squeegee mounting seat is installed on the bottom of the fixing frame, and can swing around the length of the squeegee;

a lift plate, which is hingedly connected with the seat body of the squeegee mounting seat;

The lifting plate driving mechanism is used to drive the lifting plate to rise and fall within a preset height range, so as to drive the squeegee installation seat to swing around the length direction of the squeegee within a preset angle range.

Further, the doctor blade angle adjustment device further comprises: a rotating shaft, the rotating shaft is rotatably mounted on the bottom of the fixing frame, and the axis line of the rotating shaft is substantially parallel to the scraper The length direction of the ink blade; the installation seat of the ink blade is fixed on the rotating shaft.

Further, in the squeegee angle adjustment device, wherein the fixing frame comprises: a fixing plate and two connecting ears, the fixing plate is fixed on the guide rod of the squeegee, and the two connecting ears are respectively It is fixed on both ends of the fixed plate along the axis line of the rotating shaft; the rotating shaft is rotatably installed between two connecting ears; the lifting plate driving mechanism is fixed on the fixed plate.

Further, in the squeegee angle adjustment device, the lift plate driving mechanism includes: a lift plate drive motor, a lift plate lead screw, and a lift plate lead screw nut; the motor shaft of the lift plate drive motor faces toward the The lower part is fixed on the fixed plate and is perpendicular to the fixed plate and the lifting plate; the screw nut of the lifting plate is fixed on the lifting plate; one end of the screw of the lifting plate is fixed on the motor shaft of the driving motor of the lifting plate, and the other One end is screwed into the lifter plate screw nut.

Further, in the squeegee angle adjustment device, the lift plate driving mechanism further comprises: at least one lift plate guide rod, one end of the lift plate guide rod is fixed on the fixed plate, and the other end is slidable. Wear on the lift plate.

Further, in the squeegee angle adjustment device, wherein the lifting plate driving mechanism further comprises: at least one lifting plate linear bearing, the lifting plate linear bearing is installed on the lifting plate, and the lifting plate guide rod The other end is slidably passed through the linear bearing of the lifting plate.

Further, in the doctor blade angle adjustment device, wherein the lift plate driving mechanism further comprises: a doctor blade angle sensing piece and a doctor blade angle sensor, the doctor blade angle sensing piece is fixed on the rotating shaft , and can move synchronously with the rotating shaft; the squeegee angle sensing blade has a sensing area and a non-sensing area, when the rotating shaft rotates, the sensing area and the non-sensing area are switched with each other; the scraping ink The blade angle sensor is electrically connected with the driving motor of the lifting plate, and when the angle sensor of the scraper blade senses the sensing area, the lifting driving motor is controlled to stop working.

Further, in the squeegee angle adjustment device, the squeegee angle sensing piece is a circular squeegee angle sensing piece, and a fan-shaped notch is formed on the circular squeegee angle sensing piece, and the The fan-shaped notch forms the non-sensing area; the included angle between the two sides of the fan-shaped notch along the circumferential direction of the circular squeegee angle sensing sheet is the preset angle.

Further, in the squeegee angle adjustment device, at least one end of the rotating shaft leaks out after passing through the connecting ear, the squeegee angle sensing piece is fixed on this end, and the squeegee angle The sensor is attached to the connecting lug at this end.

According to a second aspect of the present application, the present application further provides a printing press, comprising the above-mentioned device for adjusting the angle of the doctor blade.

The beneficial effects of the present utility model are:

The present application provides a printing press and a squeegee angle adjustment device thereof, wherein the squeegee adjustment device of the printing press includes: a squeegee mount for installing a squeegee, and the squeegee mount is movable It is installed on the scraper guide rod, and can reciprocate around a straight line that is substantially perpendicular to the axis line of the scraper guide rod; the lifting plate is hingedly connected with the seat of the scraper mounting seat; the lifting plate drives The mechanism is used to drive the lifting plate to reciprocate up and down within a preset height range, so as to drive the squeegee mounting base to reciprocate within a preset angle range around a line substantially perpendicular to the axis of the squeegee guide rod. The lifting plate driving mechanism drives the lifting plate to reciprocate up and down within a preset height range, thereby driving the squeegee to reciprocate within a preset angle range around a line that is substantially perpendicular to the axis of the squeegee guide rod, and automatically completes the squeegee The adjustment of the angle of the ink knife is easy to use and has high adjustment accuracy.

Description of drawings

1 is a schematic structural diagram of a doctor blade angle adjustment device provided by the application;

Fig. 2 is a partial enlarged view of Fig. 1;

3 is a schematic diagram of the positional relationship between the rotating shaft and the squeegee mounting seat in the application;

FIG. 4 is a schematic structural diagram of another viewing angle of the squeegee angle adjusting device provided by the present application.

Detailed ways

The present application will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

Embodiment 1.

This embodiment provides a squeegee angle adjustment device for a printing press, which drives the elevating plate to reciprocate up and down within a preset height range through the elevating plate drive mechanism, thereby driving the squeegee mounting seat to move in a straight line around the length direction of the squeegee. Reciprocating rotation within the preset angle range realizes automatic adjustment of the angle of the squeegee, which is easy to use and has high adjustment accuracy.

In this embodiment, the printing machine is specifically a screen printing machine, and the squeegee is used to squeegee the screen printing plate. When shaving ink, the squeegee is in contact with the screen printing plate, and when the ink is returned, the squeegee is kept away from the screen printing plate. Screen printing plate. The squeegee guide rod is a mechanism that drives the squeegee to rise or fall. The squeegee angle adjustment device adjusts the angle of the squeegee relative to the screen printing plate, so as to control the pressure of the squeegee to press the screen printing plate, so as to scratch different screen printing plates or inks.

Referring to FIGS. 1-4 , the squeegee angle adjustment device for a printing press provided by the present application includes: a squeegee mount 10 , a fixing frame, a lift plate 20 , and a lift plate drive mechanism 30 .

The doctor blade mount 10 is used for fixedly installing the doctor blade 11 . Specifically, the squeegee mounting base 10 is in the shape of a rectangular parallelepiped, and a squeegee installation slot with an opening facing downward is provided in the length direction of the squeegee mounting base 10 , and the squeegee 11 is clamped by two squeegee clamping plates 12 . , and fix the two squeegee clips 12 in the squeegee installation groove, so that the squeegee 11 is fixedly installed on the squeegee mount 10 .

The top of the fixing frame is fixedly installed on the squeegee guide rod 70 of the printing press, the squeegee mounting base 10 is installed on the bottom of the fixing frame, and the squeegee installation base 10 can swing around a straight line in the length direction of the squeegee.

In some embodiments, the long side of the doctor blade mounting base 10 is swingably mounted on the doctor blade guide rod 70 , for example, the doctor blade mounting base 10 and the doctor blade guide rod 70 are connected in a hinged manner. More specifically, a rotating shaft 40 is installed on the doctor blade guide rod 70, the axis line of the rotating shaft 40 is substantially parallel to the length direction of the doctor blade, and the rotating shaft 40 is rotatably installed on the doctor blade. On the guide rod 70 of the doctor blade, the rotating shaft 40 can rotate in a straight line around its own axis line.

Specifically, the fixing frame includes: a fixing plate 50 and two connecting ears 60 . Specifically, the fixing plate 50 is fixed on the squeegee guide rod 70 and is located above the lifting plate 20, and the two connecting ears 60 are respectively fixed on the two ends of the fixing plate 50 along the axis line direction of the rotating shaft 40, so that the The rotating shaft 40 is rotatably installed between the two connecting ears 60 , so that the rotating shaft 40 is rotatably installed on the doctor blade guide rod 70 . The aforementioned doctor blade mount 20 is fixed on the rotating shaft 40 .

In this embodiment, the connection manner in which the rotating shaft 40 is rotatably installed between the two connection ears 60 can be realized by arranging bearings on the two connection ears 60 . Of course, in other embodiments, other connection methods or other components may also be used to realize the rotational connection.

The lift plate 20 is hingedly connected with the body of the squeegee mount 10 . Specifically, the first connecting seat 13 is installed on the body of the blade mounting seat 10 facing the lifting plate 20, the second connecting seat 21 is installed on the side of the lifting plate 20 facing the doctor blade mounting seat 10, Both the first connecting seat 13 and the second connecting seat 21 are provided with pin holes substantially perpendicular to the guide rod 70 of the doctor blade. The two connecting seats are hingedly connected by inserting the pin shaft 14 into the pin holes of the two connecting seats coaxially. That is, the hinged connection between the lift plate 20 and the body of the doctor blade mount 10 is realized.

The lift plate driving mechanism 30 is used to drive the lift plate 20 to reciprocate up and down within a preset height range, so that the reciprocating lift plate 20 drives the squeegee mount 10 around the squeegee guide rod 70 through a hinged connection. The straight line of the axis line reciprocates within a preset angle range to realize automatic adjustment of the angle of the doctor blade 11 .

As shown in FIG. 1 , the lift plate driving mechanism 30 in this embodiment includes: a lift plate drive motor 31 , a lift plate lead screw 32 , a lift plate lead screw nut 33 , at least one lift plate guide rod 34 , and at least one lift plate straight line Bearing 35. The elevating plate driving motor 31 is fixed on the fixing plate 50 . As a preselected embodiment, the motor shaft of the elevating plate driving motor 31 is oriented and perpendicular to the elevating plate 20 . More preferably, the motor shaft of the lift plate driving motor 31 is fixed on the fixing plate 50 downward, so that the axis lines of the motor shaft of the lift plate driving motor 31 are both perpendicular to the fixing plate 50 and the lifting plate 20 . The lift plate screw nut 33 is fixed on the lift plate 20 , one end of the lift plate screw 32 is fixed on the motor shaft of the lift plate drive motor 31 , and the other end of the lift plate screw 32 is screwed into the lift plate screw nut 33 . One end of the lift plate guide rod 34 is fixed on the fixing plate 50 , and the other end of the lift plate guide rod 34 is slidably penetrated on the lift plate 20 . Specifically, the positions and numbers of the lifting plate guide rod 34 and the lifting plate linear bearing 35 correspond one-to-one. The lifting plate linear bearing 35 is installed on the lifting plate 20, and the other end of the aforementioned lifting plate guide rod 34 is slidably passed through. In the lift plate linear bearing 35.

The lift plate drive motor 31 outputs torque, which drives the lift plate screw 32 to rotate, and the lift plate screw nut 33 converts the rotary motion of the lift plate screw 32 into linear motion, thereby driving the lift plate 20 to rise or fall, and the rise or fall The lift plate 20 drives the squeegee mount 10 to reciprocate around a line substantially perpendicular to the axis of the squeegee guide rod 70 through a hinged connection within a preset angle range, that is, to adjust the angle of the squeegee 11 .

In order to achieve precise adjustment of the angle of the squeegee, the lift plate driving mechanism 30 further includes: a squeegee angle sensor 36 and a squeegee angle sensor 37, the squeegee angle sensor 36 is fixed on the rotating shaft 40, so that the squeegee The knife angle sensing piece 36 can move synchronously with the rotation of the rotating shaft 40 . The doctor blade angle sensor 37 is electrically connected to the lift plate driving motor 31 . As shown in FIG. 2 , the doctor blade angle sensing blade 36 has a sensing area 361 and a non-sensing area 362 . When the rotating shaft 40 rotates, the sensing area 361 and the non-sensing area 362 are switched with each other. When the squeegee angle sensor 37 senses the sensing area 361, the elevating drive motor 31 is controlled to stop working.

In this embodiment, at least one end of the aforementioned rotating shaft 40 leaks out after passing through the connecting ear 60 , the doctor blade angle sensing piece 36 is fixed on the leaking end of the rotating shaft 40 , and the doctor blade angle sensor 37 is fixed on this section through the sensor fixing seat 371 . on the connecting ear 60.

Specifically, the squeegee angle sensing piece 361 is a circular squeegee angle sensing piece, and a fan-shaped notch is formed on the circular squeegee angle sensing piece. The sensing area 361 is formed, and the included angle between the two sides of the circular squeegee angle sensing blade along the circumferential direction of the fan-shaped notch is the preset angle adjusted for the aforementioned squeegee 11 .

In this embodiment, the squeegee angle sensor 37 is specifically a photoelectric sensor, and the sensing area 361 and the non-sensing area 362 switched with the synchronous movement of the rotating shaft 40 block the infrared light emitted by the photoelectric sensor to realize induction control. As shown in FIG. 2 , it is shown that the sensing area 361 blocks the infrared light of the photoelectric sensor. At this time, the squeegee angle sensor 37 controls the lift plate driving motor 31 to stop working. When the squeegee angle sensor 36 rotates in the counterclockwise direction, the infrared light emitted by the squeegee angle sensor 37 passes through the non-sensing area 362 formed as a fan-shaped notch, so that the infrared light is not blocked, thereby controlling the driving of the lift plate The motor 31 continues to work until the sensing area 361 of the squeegee angle sensing blade 36 rotating in the counterclockwise direction blocks the infrared light, that is, the lifting plate driving motor 31 is controlled to stop working. After that, the lift plate driving motor 31 outputs torque in reverse, and drives the blade angle sensing blade 36 to rotate clockwise through the rotating shaft 40 until it stops working again.

When the squeegee angle sensor 37 senses the two sides of the non-sensing area 362 of the squeegee angle sensing blade 36, the lift plate driving motor 31 reciprocates to drive the lift plate 20 up and down, and the height of the reciprocating lift is the height of the lift plate 20 The preset height of the lift, the preset height is proportional to the angle between the two sides of the non-sensing area 362, that is to say, the larger the angle, the higher the preset height, and then the adjustment of the squeegee 11 is higher. The larger the angle is, the larger the angle between the two sides of the non-sensing area 362 is set according to actual production needs, so as to meet the needs of different productions.

Embodiment two,

This embodiment also provides a printing press, including the squeegee angle adjustment device described in the first embodiment. Since all the functions and features of the squeegee angle adjusting device have been described in detail in the above embodiments, they will not be repeated here.

To sum up, in the printing press and the squeegee angle adjustment device provided in the present application, the squeegee angle adjustment device drives the elevating plate to reciprocate up and down within a preset height range through the elevating plate drive mechanism, thereby driving the ink squeegee The blade mounting seat reciprocates around a line substantially perpendicular to the axis line of the guide rod of the squeegee within a preset angle range to realize automatic adjustment of the angle of the squeegee, which is easy to use and has high adjustment accuracy.

The above content is a further detailed description of the present application in conjunction with specific embodiments, and it cannot be considered that the specific implementation of the present application is limited to these descriptions. For those of ordinary skill in the technical field to which the present application pertains, without departing from the concept of the present utility model, some simple deductions or substitutions can also be made.

Claims (10)

1. A doctor blade angle adjustment device for a printing press, comprising:

a doctor blade mounting seat for mounting a doctor blade;

the top of the fixing frame is fixed on a doctor blade guide rod of the printing machine, and the doctor blade mounting seat is mounted at the bottom of the fixing frame and can swing around the length direction of the doctor blade;

the lifting plate is hinged with the seat body of the doctor blade mounting seat;

and the lifting plate driving mechanism is used for driving the lifting plate to lift within a preset height range so as to drive the doctor blade mounting seat to swing within a preset angle range around the length direction of the doctor blade.

2. The doctor blade angle adjustment device as claimed in claim 1, further comprising: the rotating shaft is rotatably arranged at the bottom of the fixing frame, and the axis of the rotating shaft is basically parallel to the length direction of the doctor blade; the doctor blade mounting seat is fixed on the rotating shaft.

3. The doctor blade angle adjustment device as claimed in claim 2, wherein said holder includes: the fixing plate is fixed on the doctor blade guide rod, and the two connecting lugs are respectively fixed at two ends of the fixing plate along the axial lead direction of the rotating shaft; the rotating shaft is rotatably arranged between the two connecting lugs; the lifting plate driving mechanism is fixed on the fixing plate.

4. The doctor blade angle adjustment device of claim 3, wherein said lift plate drive mechanism includes: a lifter plate drive motor, a lifter plate lead screw, and a lifter plate lead screw nut; a motor shaft of the lifting plate driving motor is fixed on the fixing plate downwards and is perpendicular to the fixing plate and the lifting plate; the lifting plate screw nut is fixed on the lifting plate; one end of the lifting plate screw rod is fixed on a motor shaft of the lifting plate driving motor, and the other end of the lifting plate screw rod is screwed in the lifting plate screw rod nut.

5. The doctor blade angle adjustment device of claim 4, wherein said lift plate drive mechanism further includes: at least one lifter plate guide bar, the one end of lifter plate guide bar is fixed on the fixed plate, and the other end slidable wears to establish on the lifter plate.

6. The doctor blade angle adjustment device of claim 5, wherein said lift plate drive mechanism further includes: the lifting plate linear bearing is installed on the lifting plate, and the other end of the lifting plate guide rod penetrates through the lifting plate linear bearing in a sliding mode.

7. The doctor blade angle adjustment device of claim 6, wherein said lift plate drive mechanism further includes: the ink scraping blade angle sensing piece is fixed on the rotating shaft and can synchronously move along with the rotating shaft; the doctor blade angle sensing piece is provided with a sensing area and a non-sensing area, and the sensing area and the non-sensing area are mutually switched when the rotating shaft rotates; the doctor blade angle sensor is electrically connected with the lifting plate driving motor, and when the doctor blade angle sensor senses the induction area, the lifting driving motor is controlled to stop working.

8. The doctor blade angle adjustment device of claim 7, wherein said doctor blade angle sensing blade is a circular doctor blade angle sensing blade, said circular doctor blade angle sensing blade having a fan-shaped notch formed therein, said fan-shaped notch forming said non-sensing area; the fan-shaped gap is along the included angle between the two side edges of the circumference of the circular doctor blade angle sensing piece is the preset angle.

9. The doctor blade angle adjustment assembly as claimed in claim 8, wherein at least one end of said rotary shaft is extended out through said engaging lug, said doctor blade angle sensing blade is fixed to said end, and said doctor blade angle sensor is fixed to said engaging lug at said end.

10. A printing press comprising the doctor blade angle adjusting device as claimed in any one of claims 1 to 9.

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