CN219028865U

CN219028865U - Screen printing scraper device

Info

Publication number: CN219028865U
Application number: CN202320133856.0U
Authority: CN
Inventors: 孙绍敖
Original assignee: Cangnan Shuanglong Handicraft Co ltd
Current assignee: Cangnan Shuanglong Handicraft Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-05-16
Anticipated expiration: 2033-02-07

Abstract

The utility model discloses a screen printing scraper device, wherein two ends of the bottom of a case are provided with hinge lugs, and two ends of a knife rest are rotationally connected with the hinge lugs; the bottom of two sides of the knife rest is respectively provided with a scraper mechanism and an ink return knife, the scraper mechanism comprises a fixing frame, a mounting frame and a scraper, the fixing frame is of a rectangular box-shaped structure with a downward opening, the mounting frame is positioned in the fixing frame, the top of the mounting frame is rotationally provided with a threaded rod, the top of the fixing frame is provided with a threaded through hole, and the two are mutually matched; the scraper top is equipped with spacing cylinder, and spacing cylinder's diameter is greater than the thickness of scraper, and the mount bottom corresponds to be equipped with the open slot, and spacing cylinder and scraper top slip grafting are in the open slot. The knife rest can rotate, so that the angle of the scraper can be conveniently adjusted; the height of the mounting frame is adjusted through the cooperation of the threaded rod and the threaded through hole, so that the extending length of the scraper is adjusted, the scraper does not need to be replaced frequently, the scraper is installed through the cooperation of the limiting cylinder and the open slot, and the installation is simple and quick.

Description

Screen printing scraper device

Technical Field

The utility model relates to the technical field of scraper devices, in particular to a screen printing scraper device.

Background

Screen printers (silk screen printers) are common printing machines used for printing text and images, and generally consist of inking, stamping, conveying, etc. mechanisms. The working principle of the device is as follows: the characters and images to be printed are made into printing plates, the printing plates are arranged on a screen printing machine, then the printing ink is coated on the places where the characters and images are arranged on the printing plates by a manual or screen printing machine, and then the printing plates are directly or indirectly transferred onto printing stock (such as woven belts, metal plates, plastics, leather, wood plates, glass and ceramics), so that the printing products which are the same as the printing plates are reproduced.

The scraper and the ink returning knife in the prior art are controlled by separate control devices, so that the angle of the scraper is inconvenient to adjust. The utility model patent application with publication number of CN106183381B discloses a screen printing scraper device, which comprises a printing head host machine, wherein the printing head host machine is connected with a control device, the control device is connected with an integrated printing-ink returning knife rest, and the printing-ink returning knife rest is rotatably connected with the control device; the two ends of the printing-ink returning knife rest are respectively connected with a scraper, and the bottom ends of the two scrapers are inclined outwards to be in an eight shape. The screen printing scraper device can realize integrated control, is convenient for the adjustment of scraper angle and has low cost. Above-mentioned scraper device is although solved scraper angle modulation's problem, but the length of its scraper can't be adjusted, and the scraper adopts the rubber material to make, has certain wearing and tearing in the printing process, can not the tight contact silk screen after the scraper wearing and tearing, influences printing quality, needs frequent change scraper in order to guarantee printing quality, causes extravagant, and this scraper passes through screw nut to be fixed on the knife rest, and the installation is dismantled troublesome operation, inefficiency.

Disclosure of Invention

The technical problem to be solved by the utility model is to overcome the technical problem and provide a screen printing scraper device.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the screen printing scraper device comprises a machine case and a cutter rest, wherein two ends of the bottom of the machine case are provided with hinge lugs, two ends of the cutter rest are rotationally connected with the hinge lugs, and a driving mechanism for controlling the cutter rest to rotate is arranged in the machine case; the knife rest is of a door-shaped structure, the bottoms of two sides of the knife rest are respectively provided with a scraper mechanism and an ink return knife, the scraper mechanism comprises a fixing frame, a mounting frame and a scraper, the fixing frame is of a rectangular box-shaped structure with a downward opening, the mounting frame is positioned in the fixing frame, the top of the mounting frame is rotationally provided with a threaded rod, the top of the fixing frame is correspondingly provided with a threaded through hole with the threaded rod, and the two are matched with each other; the scraper top is equipped with spacing cylinder along length direction, and spacing cylinder's diameter is greater than the thickness of scraper, and the mount bottom corresponds to be equipped with the open slot, and spacing cylinder and scraper top slip grafting are in the open slot, and open slot both ends still are equipped with the mounting, ink return sword detachable installs on the knife rest.

Further, the driving mechanism comprises a servo motor and a gear, the gear comprises a first gear and a second gear, the servo motor is located in the case, the first gear is installed on an output shaft of the servo motor, the second gear is fixedly arranged at the top of the middle of the tool rest, and the top of the second gear penetrates through the side wall of the bottom of the case and is meshed with the first gear.

Further, a through hole is formed in the bottom of the case, and the second gear penetrates through the through hole.

Further, a sliding groove is formed in the side wall of the mounting frame, a sliding block is arranged on the inner side wall of the mounting frame corresponding to the sliding groove, and the sliding block are matched with each other.

Further, the fixing piece comprises a threaded sleeve and a threaded cap, wherein threads of the threaded sleeve are arranged on the outer surface of the threaded sleeve, the diameter of the threaded sleeve is matched with that of the limiting cylinder, the bottom of the threaded sleeve is provided with an opening, a scraper can pass through the opening, and the threaded cap is matched with the threaded sleeve.

Further, C-shaped mounting grooves are formed in the cutter rest and correspond to the two ends of the ink returning cutter, the ink returning cutter is inserted into the C-shaped mounting grooves in a sliding mode, limiting holes are formed in the two ends of the ink returning cutter, elastic limiting columns are correspondingly arranged on the outer side walls of the C-shaped mounting grooves, and the elastic limiting columns are inserted into the limiting holes in an inserting mode.

Compared with the prior art, the utility model has the advantages that: the knife rest can rotate, so that the angle of the scraper can be conveniently adjusted, and the thickness of printing ink can be adjusted; the scraper is installed on the mounting frame, the height of the mounting frame can be adjusted through the cooperation of the threaded rod and the threaded through hole, so that the extension length of the scraper can be adjusted after the scraper is worn, the service life of the scraper is prolonged, the scraper does not need to be frequently replaced, and the scraper is installed through the cooperation of the limiting cylinder and the open slot, so that the installation is simple and quick.

Drawings

Fig. 1 is a schematic side view of a screen printing doctor apparatus according to the utility model.

Fig. 2 is a schematic longitudinal sectional view of a screen printing doctor apparatus according to the utility model in a side view.

Fig. 3 is a schematic view showing the structure of a doctor mechanism in a front view of a screen printing doctor apparatus of the utility model.

Fig. 4 is a schematic cross-sectional structure of the ink return blade of the screen printing doctor apparatus of the utility model in a plan view.

As shown in the figure: 1. a chassis; 2. a tool holder; 3. a hinge ear; 4. ink returning knife; 5. a fixing frame; 6. a mounting frame; 7. a scraper; 8. a limit cylinder; 9. an open slot; 10. a servo motor; 11. a first gear; 12. a second gear; 13. a through hole; 14. a chute; 15. a slide block; 16. a threaded sleeve; 17. a screw cap; 18. a C-shaped mounting groove; 19. a limiting hole; 20. an elastic limit column; 21. a threaded rod.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to the attached drawings, the screen printing scraper device comprises a machine case 1 and a cutter rest 2, wherein two ends of the bottom of the machine case 1 are provided with hinge lugs 3, two ends of the cutter rest 2 are rotatably connected with the hinge lugs 3, and a driving mechanism for controlling the cutter rest 2 to rotate is arranged in the machine case 1; the knife rest 2 is of a door-shaped structure, two side walls of the knife rest 2 can be parallel to each other and can also incline outwards to form an 8-shaped structure, the two side walls can be adjusted according to actual demands, a scraper mechanism and an ink return knife 4 are respectively arranged at the bottoms of two sides of the knife rest 2, the scraper mechanism comprises a fixing frame 5, a mounting frame 6 and a scraper 7, the fixing frame 5 is of a rectangular box-shaped structure with a downward opening, the mounting frame 6 is positioned in the fixing frame 5, a threaded rod 21 is rotatably arranged at the top of the mounting frame 6, threaded through holes are correspondingly arranged at the top of the fixing frame 5 and the threaded rod 21, the threaded through holes are mutually matched, and a rotating handle is arranged at the top of the threaded rod 21; the scraper 7 top is equipped with spacing cylinder 8 along length direction, and spacing cylinder 8's diameter is greater than the thickness of scraper 7, and mount 5 bottom corresponds to be equipped with open slot 9, and spacing cylinder 8 and scraper 7 top slip grafting are in open slot 9, and open slot 9 both ends still are equipped with the mounting, ink return knife 4 detachable installs on knife rest 2. The driving mechanism comprises a servo motor 10 and gears, wherein the gears comprise a first gear 11 and a second gear 12, the servo motor 10 is positioned in the case 1, the first gear 11 is installed on an output shaft of the servo motor, the second gear 12 is fixedly arranged at the top of the middle of the tool rest 2, and the top of the second gear 12 penetrates through the side wall of the bottom of the case 1 and is meshed with the first gear 11.

In specific implementation, when the angle of the scraper is required to be regulated, the servo motor 10 is controlled to rotate to drive the gear I11 to rotate, and the gear I11 is meshed with the gear II 12, so that the gear II 12 rotates along with the gear I, thereby driving the tool rest 2 to rotate, regulating the angle of the scraper 7, and after one end of use time, the threaded rod 21 is rotated to drive the mounting frame 6 to move downwards, so that the scraper 7 stretches out for a longer time, and the worn part of the scraper 7 is compensated; when the scraper 7 needs to be replaced, the threaded rod 21 is rotated to enable the mounting frame to extend longest, then the fixing piece is opened, the old scraper is pulled towards one end, then the limit cylinder 8 on the new scraper is aligned with the circular part at the top of the open slot 9, the top of the scraper is aligned with the bottom of the open slot 9, the scraper is pushed into the open slot 9 to be inserted into the open slot 9, then the mounting frame is retracted into the fixing frame 5 when the threaded rod 21 is reversely rotated, the cutter frame is rotated during printing, the scraper is enabled to contact with the silk screen and the ink, when the cutter frame reversely rotates during printing and returns, the ink returning cutter 4 is enabled to contact with the silk screen and the ink to scrape the ink back.

The bottom of the case 1 is provided with a through hole 13, and the second gear 12 passes through the through hole 13.

Be equipped with spout 14 on the mounting bracket 6 lateral wall, be equipped with slider 15 on the mount 5 inside wall corresponding to spout 14, both mutually support, can restrict mounting bracket 6, make it can only follow the movement of threaded rod 21 direction, can avoid mounting bracket 6 to rock.

The fixing piece comprises a threaded sleeve 16 and a threaded cap 17, wherein threads of the threaded sleeve 16 are arranged on the outer surface of the threaded sleeve, the diameter of the threads is matched with that of the limiting cylinder 8, the bottom of the threaded sleeve 16 is provided with an opening, a scraper 7 can pass through the opening, the threaded cap 17 is matched with the threaded sleeve 16, the scraper is limited through the threaded cap 17, and the scraper is prevented from extending out of one end of the mounting frame 6 and is deflected.

The two ends of the knife rest 2 corresponding to the ink returning knife 4 are provided with C-shaped mounting grooves 18, the ink returning knife 4 is slidably inserted into the C-shaped mounting grooves 18, two ends of the ink returning knife 4 are provided with limiting holes 19, the outer side wall of the C-shaped mounting grooves 18 is correspondingly provided with elastic limiting columns 20, the elastic limiting columns 20 are inserted into the limiting holes, the elastic telescopic limiting columns 20 comprise telescopic columns and springs, the side walls of the C-shaped mounting grooves 18 are provided with telescopic holes, one ends of the springs and one ends of the telescopic columns are positioned in the telescopic holes, the two ends of the springs are fixedly connected with the telescopic columns and the side walls of the telescopic holes respectively, the parts of the telescopic columns extending to the outer sides of the telescopic holes are of hemispherical structures, when the ink returning knife 4 is installed, the ink returning knife 4 is pushed upwards from the bottom of the C-shaped mounting grooves 18, the telescopic columns are extruded to retract into the telescopic holes when the telescopic columns are contacted with the telescopic columns, and after the telescopic columns are installed in place, the telescopic columns extend into the limiting holes 19 under the action of the springs to limit.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. The utility model provides a screen printing scraper device, includes machine case (1) and knife rest (2), its characterized in that: the two ends of the bottom of the case (1) are provided with hinge lugs (3), the two ends of the tool rest (2) are rotationally connected with the hinge lugs (3), and a driving mechanism for controlling the tool rest (2) to rotate is arranged in the case (1); the knife rest (2) is of a door-shaped structure, the bottoms of two sides of the knife rest are respectively provided with a scraper mechanism and an ink returning knife (4), the scraper mechanism comprises a fixing frame (5), a mounting frame (6) and a scraper (7), the fixing frame (5) is of a rectangular box-shaped structure with a downward opening, the mounting frame (6) is positioned in the fixing frame (5), a threaded rod (21) is rotatably arranged at the top of the mounting frame, a threaded through hole is correspondingly formed in the top of the fixing frame (5) and the threaded rod (21), and the two are matched with each other; the top of the scraper (7) is provided with a limit cylinder (8) along the length direction, the diameter of the limit cylinder (8) is larger than the thickness of the scraper (7), the bottom of the fixing frame (5) is correspondingly provided with an open slot (9), the limiting cylinder (8) and the top of the scraper (7) are slidably inserted into the open slot (9), fixing pieces are further arranged at two ends of the open slot (9), and the ink returning knife (4) is detachably arranged on the knife rest (2).

2. A screen printing doctor apparatus according to claim 1, wherein: the driving mechanism comprises a servo motor (10) and a gear, the gear comprises a first gear (11) and a second gear (12), the servo motor (10) is located in the case (1), the first gear (11) is installed on an output shaft of the servo motor, the second gear (12) is fixedly arranged at the middle top of the tool rest (2), and the top of the second gear (12) penetrates through the side wall of the bottom of the case (1) and is meshed with the first gear (11).

3. A screen printing doctor apparatus according to claim 2, wherein: the bottom of the case (1) is provided with a through hole (13), and the gear II (12) passes through the through hole (13).

4. A screen printing doctor apparatus according to claim 1, wherein: the sliding block type sliding device is characterized in that a sliding groove (14) is formed in the side wall of the mounting frame (6), a sliding block (15) is arranged on the inner side wall of the mounting frame (5) corresponding to the sliding groove (14), and the sliding block are matched with each other.

5. A screen printing doctor apparatus according to claim 1, wherein: the fixing piece comprises a threaded sleeve (16) and a threaded cap (17), wherein threads of the threaded sleeve (16) are arranged on the outer surface of the threaded sleeve, the diameter of the threaded sleeve is matched with that of the limiting cylinder (8), the bottom of the threaded sleeve (16) is open, a scraper (7) can pass through the opening of the threaded sleeve, and the threaded cap (17) is matched with the threaded sleeve (16).

6. A screen printing doctor apparatus according to claim 1, wherein: c-shaped mounting grooves (18) are formed in the cutter rest (2) corresponding to the two ends of the ink returning cutter (4), the ink returning cutter (4) is slidably inserted into the C-shaped mounting grooves (18), limiting holes (19) are formed in the two ends of the ink returning cutter (4), elastic limiting columns (20) are correspondingly arranged on the outer side walls of the C-shaped mounting grooves (18), and the elastic limiting columns (20) are inserted into the limiting holes.