CN214727290U

CN214727290U - Scraper height adjusting mechanism

Info

Publication number: CN214727290U
Application number: CN202023232308.9U
Authority: CN
Inventors: 肖国荣
Original assignee: Goal Searchers Co ltd Zhuhai
Current assignee: Goal Searchers Co ltd Zhuhai
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-16
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a scraper height adjusting mechanism, which comprises a frame; a scraper; the lifting assembly is arranged on the rack and comprises a lifting frame and a first driving unit, the first driving unit can drive the lifting frame to vertically move, and the lower end of the lifting frame is connected with the scraper; the height adjusting assembly comprises an adjusting rod and a second driving unit, the adjusting rod extends in the vertical direction and penetrates through the lifting frame, and the second driving unit is installed on the lifting frame and used for driving the adjusting rod to vertically move; the baffle is installed in the frame and is located the below of adjusting the pole, when adjusting the pole and pushing the baffle downwards, adjusts the pole and can promote the crane rebound. This height adjusting mechanism's first drive unit can drive crane vertical migration, and the crane can drive the scraper and move down to the butt stock. On the basis, the height adjusting component can finely adjust the height of the scraper, so that the pressure of the scraper can be adjusted.

Description

Scraper height adjusting mechanism

Technical Field

The utility model relates to a silk screen printing technical field, in particular to scraper height adjusting mechanism.

Background

The printing stock of silk screen printing machine is placed on the printing platform, and the silk screen printing form is located the top of printing stock, and keeps certain clearance between silk screen printing form and the printing stock. A pair of cylinders can be installed on a frame of a traditional screen printer, and piston rods of the pair of cylinders are respectively connected with two ends of a scraper. When printing, ink is poured into one end of the screen printing plate, and the piston rod pushes the scraper to press the screen printing plate downwards, so that the screen printing plate and a printing stock form a nip; the scraper moves towards the other end of the screen printing plate at a constant speed, and the moving scraper enables the printing ink to be extruded to a printing stock from the through hole of the image-text part.

Among the current silk screen printing machine, the height and the pressure of scraper are direct to be adjusted by the cylinder, however light leans on the cylinder to accomplish the height of accurate regulation scraper hardly, often can make the too big or undersize of distance that the scraper moved down, and lead to the scraper to apply in the too big or undersize of pressure of stock, and when the pressure of scraper was too big, the silk screen plate damaged easily, again influences the printing effect when pressure is not enough. Therefore, the existing screen printing machine is not enough to meet the actual requirement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a scraper height adjusting mechanism can finely tune the height of scraper to adjust the pressure of scraper.

The scraper height adjusting mechanism according to the embodiment of the utility model comprises a frame; a scraper; the lifting assembly is arranged on the rack and comprises a lifting frame and a first driving unit, the first driving unit can drive the lifting frame to vertically move, and the lower end of the lifting frame is connected with the scraper; the height adjusting assembly comprises an adjusting rod and a second driving unit, the adjusting rod extends in the vertical direction and penetrates through the lifting frame, and the second driving unit is installed on the lifting frame and used for driving the adjusting rod to vertically move; the baffle is arranged on the rack and located below the adjusting rod, and when the adjusting rod is abutted against the baffle downwards, the adjusting rod can push the lifting frame to move upwards.

The method has the following beneficial effects: this height adjusting mechanism's first drive unit drive crane vertical movement, the crane can drive the scraper and move down to the butt stock, and at this moment, the subassembly of increaseing also can the downstream. On the basis, the second driving unit drives the adjusting rod to move downwards to abut against the baffle, and the baffle is fixed on the rack, so that the adjusting rod cannot move downwards continuously; at this time, if the second driving unit continues to apply a downward force to the adjusting rod, the reaction force generated by the adjusting rod can make the second driving unit and the lifting frame move upwards, so that the height of the scraper is finely adjusted, and the scraper applies a proper pressure to the printing stock. The height adjusting mechanism can finely adjust the height of the scraper so as to adjust the pressure of the scraper.

According to the utility model discloses a some embodiments, it is the screw rod to adjust the pole, second drive unit is the motor, second drive unit install in on the crane, second drive unit's output transmission is connected with the driving gear, the driving gear meshing transmission has driven gear, driven gear's hole is provided with the internal thread, adjust the pole with driven gear cooperation is connected, set up the guide way along axial extension on the regulation pole, the stop part has been put to the guide way, stop part fixed connection the crane.

According to some embodiments of the utility model, driven gear rotate connect in the crane, driven gear with be provided with thrust ball bearing between the crane.

According to some embodiments of the utility model, first drive unit install in the frame, first drive unit is the cylinder, vertical direction removal can be followed to first drive unit's piston rod, the below of piston rod is connected the crane, the crane pass through the direction subassembly with frame sliding connection.

According to some embodiments of the utility model, the direction subassembly includes the guide rail that extends along vertical direction, the guide rail install in the frame, be provided with the slider on the guide rail, the slider with crane fixed connection.

According to some embodiments of the utility model, install on the crane and install the buffer, the buffer is located the top of baffle, works as when the crane descends, but the buffer butt the baffle.

According to some embodiments of the invention, the scraper is connected with the crane through an angle adjustment assembly.

According to some embodiments of the utility model, the angle adjustment subassembly includes mount pad and axis of rotation, the mount pad with the crane is connected, the axis of rotation pass through the bearing rotate connect in the mount pad, axis of rotation fixed connection the scraper, the scraper is located the below of axis of rotation.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a partial schematic structural diagram of an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an elevation component according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another view angle of the height-adjusting assembly according to the embodiment of the present invention.

Reference numerals: the scraper device comprises a machine frame 1, a scraper 2, a lifting assembly 3, a lifting frame 31, a first driving unit 32, a height adjusting assembly 4, an adjusting rod 41, a guide groove 411, a second driving unit 42, a driving gear 43, a driven gear 44, a stop piece 45, a baffle plate 5, an angle adjusting assembly 6, a mounting seat 61, a rotating shaft 62, a buffer 7, a guide assembly 8, a guide rail 81 and a sliding block 82.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated, for example, up, down, left, right, etc., referred to the orientation description is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is two or more, and the terms greater than, less than, exceeding, etc. are understood not to include the number, and the terms greater than, less than, within, etc. are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, a scraper height adjusting mechanism according to an embodiment of the present invention includes a frame 1, a scraper 2, a lifting assembly 3, a height-adjusting assembly 4, and a baffle 5.

Wherein, lifting unit 3 installs in frame 1, and lifting unit 3 includes crane 31 and first drive unit 32, and first drive unit 32 can drive crane 31 vertical migration, and the lower extreme and the scraper 2 of crane 31 are connected. The height adjusting assembly 4 comprises an adjusting rod 41 and a second driving unit 42, the adjusting rod 41 extends along the vertical direction and penetrates through the lifting frame 31, and the second driving unit 42 is installed on the lifting frame 31 and is used for driving the adjusting rod 41 to move vertically. The baffle 5 is arranged on the frame 1 and is positioned below the adjusting rod 41, and when the adjusting rod 41 is downwards abutted against the baffle 5, the adjusting rod 41 can push the lifting frame 31 to move upwards.

The first driving unit 32 of the height adjusting mechanism drives the lifting frame 31 to vertically move, the lifting frame 31 can drive the scraper 2 to move downwards to abut against a printing stock, and at the moment, the height adjusting assembly 4 also moves downwards. On the basis, the second driving unit 42 drives the adjusting rod 41 to move downwards to abut against the baffle 5, and the baffle 5 is fixed on the frame 1, so that the adjusting rod 41 cannot move downwards continuously; at this time, if the second driving unit 42 continues to apply a downward force to the adjustment lever 41, the reaction force generated by the adjustment lever 41 will move the lifting frame 31 upward, thereby finely adjusting the height of the scraper 2 so that the scraper 2 applies an appropriate pressure to the printing material. The height adjusting mechanism can finely adjust the height of the scraper 2, thereby adjusting the pressure of the scraper 2.

Referring to fig. 2, fig. 3 and fig. 4, in some embodiments of the present invention, the adjusting rod 41 is a screw rod, the second driving unit 42 is a motor, the second driving unit 42 is installed on the lifting frame 31, the output end of the second driving unit 42 is connected with a driving gear 43 in a transmission manner, the driving gear 43 is engaged with a driven gear 44 in a transmission manner, an inner thread is disposed in an inner hole of the driven gear 44, the adjusting rod 41 is connected with the driven gear 44 in a matching manner, a guide groove 411 extending along the axial direction is disposed on the adjusting rod 41, a stop member 45 is disposed in the guide groove 411, and the stop member 45 is fixedly connected with the lifting frame 31. Specifically, the second driving unit 42 rotates the driving gear 43, and the driving gear 43 engages with the driven gear 44 to rotate the driven gear 44. The inner hole of the driven gear 44 is provided with an internal thread, the adjusting rod 41 is connected with the driven gear 44 in a matching manner, and the adjusting rod 41 is provided with a guide groove 411, and the stop piece 45 limits the rotation of the adjusting rod 41, so that the adjusting rod 41 can only move along the vertical direction when the driven gear 44 rotates. The driven gear 44 is connected to the adjusting lever 41 by screw-fitting, so that the height of the scraper can be adjusted more precisely.

Further, as shown in fig. 4 in particular, the driven gear 44 is rotatably connected to the lifting frame 31, and a thrust ball bearing is disposed between the driven gear 44 and the lifting frame 31. The thrust ball bearing is capable of withstanding an axial force such that the driven gear 44 can only rotate and cannot move in the vertical direction.

Referring to fig. 2, in some embodiments of the present invention, the first driving unit 32 is installed on the frame 1, the first driving unit 32 is a cylinder, a piston rod of the first driving unit 32 can move along a vertical direction, the crane 31 is connected below the piston rod, and the crane 31 is slidably connected with the frame 1 through the guiding component 8. Specifically, when the piston rod of the first driving unit 32 moves in the vertical direction, the lifting frame 31 is driven to move, and the scraper 2 moves synchronously. More specifically, the crane 31 is provided with a second driving unit 42, the second driving unit 42 can drive the adjusting rod 41 to move downwards to abut against the baffle 5, and the baffle 5 is fixed on the frame 1, so the adjusting rod 41 cannot move downwards continuously; the second driving unit 42 continues to apply a downward force to the adjustment rod 41, and the reaction force generated by the adjustment rod 41 can overcome the gas pressure in the first driving unit 32 to force the elevation frame 31 to move upward, thereby achieving fine adjustment of the height of the scraper 2.

Further, the guide assembly 8 comprises a guide rail 81 extending in the vertical direction, the guide rail 81 is installed on the rack 1, a sliding block 82 is arranged on the guide rail 81, and the sliding block 82 is fixedly connected with the lifting frame 31. Specifically, the piston rod drives the lifting frame 31 to lift, and the guide rail 81 is used for limiting the lifting path of the lifting frame 31, so that the lifting frame 31 cannot generate deviation.

Referring to fig. 1 and 2, in some embodiments of the present invention, the crane 31 is provided with a buffer 7, the buffer 7 is located above the baffle 5, and when the crane 31 descends, the buffer 7 can abut against the baffle 5. Specifically, when the crane 31 is lowered too much, the crane 31 may directly hit the baffle 5, causing abrasion. The installation buffer 7 can effectively reduce impact stress and prolong the service life of the lifting frame.

Referring to fig. 1, in some embodiments of the present invention, the scraper 2 is connected to a crane 31 via an angle adjustment assembly 6. Specifically, when the lifting frame 31 is lifted, the angle adjusting assembly 6 and the scraper 2 are driven to lift synchronously. The angle adjusting assembly 6 can adjust the angle of the scraper 2.

Further, the angle adjusting assembly 6 comprises a mounting seat 61 and a rotating shaft 62, the mounting seat 61 is connected with the lifting frame 31, the rotating shaft 62 is rotatably connected to the mounting seat 61 through a bearing, the rotating shaft 62 is fixedly connected with the scraper 2, and the scraper 2 is located below the rotating shaft 62. Specifically, the installer may rotate the rotating shaft 62, thereby adjusting the angle of the scraper 2 mounted on the rotating shaft 62.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A scraper height adjustment mechanism, comprising:

a frame (1);

a scraper (2);

the lifting assembly (3) is arranged on the rack (1), the lifting assembly (3) comprises a lifting frame (31) and a first driving unit (32), the first driving unit (32) can drive the lifting frame (31) to vertically move, and the lower end of the lifting frame (31) is connected with the scraper (2);

the height adjusting assembly (4) comprises an adjusting rod (41) and a second driving unit (42), the adjusting rod (41) extends along the vertical direction and penetrates through the lifting frame (31), and the second driving unit (42) is installed on the lifting frame (31) and is used for driving the adjusting rod (41) to vertically move;

the baffle (5) is arranged on the rack (1) and is positioned below the adjusting rod (41), and when the adjusting rod (41) is abutted against the baffle (5) downwards, the adjusting rod (41) can push the lifting frame (31) to move upwards.

2. The scraper height adjusting mechanism according to claim 1, characterized in that the adjusting rod (41) is a screw rod, the second driving unit (42) is a motor, the second driving unit (42) is installed on the lifting frame (31), the output end of the second driving unit (42) is connected with a driving gear (43) in a transmission manner, the driving gear (43) is engaged with a driven gear (44) in a transmission manner, an inner hole of the driven gear (44) is provided with an internal thread, the adjusting rod (41) is connected with the driven gear in a matching manner, the adjusting rod (41) is provided with a guide groove (411) extending along the axial direction, a stop member (45) is arranged in the guide groove (411), and the stop member (45) is fixedly connected with the lifting frame (31).

3. A scraper height adjustment mechanism according to claim 2, characterized in that the driven gear (44) is rotatably connected to the lifting frame (31), and a thrust ball bearing is arranged between the driven gear (44) and the lifting frame (31).

4. A scraper height adjustment mechanism according to claim 1, characterized in that the first driving unit (32) is mounted on the machine frame (1), the first driving unit (32) is a cylinder, a piston rod of the first driving unit (32) is movable in a vertical direction, the lifting frame (31) is connected below the piston rod, and the lifting frame (31) is slidably connected with the machine frame (1) through a guiding component (8).

5. A scraper height adjustment mechanism according to claim 4, characterized in that the guiding assembly (8) comprises a guide rail (81) extending in a vertical direction, the guide rail (81) is mounted on the machine frame (1), a sliding block (82) is arranged on the guide rail (81), and the sliding block (82) is fixedly connected with the lifting frame (31).

6. A scraper height adjustment mechanism according to claim 1, characterized in that a buffer (7) is mounted on the lifting frame (31), the buffer (7) being located above the baffle (5), the buffer (7) being adapted to abut against the baffle (5) when the lifting frame (31) is lowered.

7. A scraper height adjustment mechanism according to claim 1, characterized in that the scraper (2) is connected to the lifting frame (31) by means of an angle adjustment assembly (6).

8. A scraper height adjustment mechanism according to claim 7, characterized in that the angle adjustment assembly (6) comprises a mounting seat (61) and a rotating shaft (62), the mounting seat (61) is connected with the lifting frame (31), the rotating shaft (62) is rotatably connected with the mounting seat (61) through a bearing, the rotating shaft (62) is fixedly connected with the scraper (2), and the scraper (2) is positioned below the rotating shaft (62).