CN112976779A - Adjustable frame of silk screen printing and silk screen frame - Google Patents
Adjustable frame of silk screen printing and silk screen frame Download PDFInfo
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- CN112976779A CN112976779A CN202110173901.0A CN202110173901A CN112976779A CN 112976779 A CN112976779 A CN 112976779A CN 202110173901 A CN202110173901 A CN 202110173901A CN 112976779 A CN112976779 A CN 112976779A
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- frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
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Abstract
The invention relates to a screen printing adjustable frame and a screen printing screen frame, which comprise a first frame, a second frame, a third frame, a fourth frame, two first adjusting parts and a plurality of pressing plates, wherein the first frame, the second frame, the third frame and the fourth frame are sequentially adjacent; two ends of the first frame are movably connected with one ends of the second frame and the fourth frame respectively, and the moving direction of the first frame is consistent with the length direction of the second frame; one first adjusting piece is connected with the first frame and the second frame, the other first adjusting piece is connected with the first frame and the fourth frame, and the first adjusting piece is used for adjusting the moving distance of the first frame; each pressing plate is connected with the frame, and the pressing plates and the frame press the edges of the pattern plate together. According to the silk-screen adjustable frame, the pattern plate is pressed through the pressing plate and the frame together, the first edge frame and one edge of the pattern plate are driven to move through the first adjusting piece, the pattern plate can be tensioned, and the first adjusting piece can be adjusted again even if the pattern plate is deformed, so that the pattern plate is tensioned again.
Description
Technical Field
The invention relates to the technical field of screen printing production, in particular to a screen printing adjustable frame and a screen printing screen frame.
Background
The screen frame is a printing plate for screen printing of circuit board, and during printing, ink is transferred into holes of printed circuit board via holes of the screen plate under certain pressure.
The existing screen printing frame consists of a frame, a screen and a pattern plate. The frame is formed by welding aluminum profiles, the silk screen is formed by bonding elastic gauze with a screen machine on four sides of the frame through fixed pulling force to provide tension for the screen frame, so that the four-direction tension is still kept after the gauze is attached to the basic frame, finally, the pattern plate is placed on the gauze, four sides of the pattern plate are attached to the silk screen by glue and adhesive tapes, and the pattern plate can be tensioned due to the fact that the four-direction tension exists in the silk screen after redundant gauze is cut off. The pattern plate is typically made of pp plate, aluminum plate, 304 stainless steel plate, and the pattern is drilled out by a special drill.
The existing screen printing frame has the following defects:
(1) the screen frame is scrapped once the deformation is too large because the screen needs to maintain certain tension after being tensioned but can generate plastic deformation when being used more; and because the silk screen installed on the screen frame needs certain tension to tension the pattern plate, but because of the characteristics of the silk screen, the silk screen needs to be stored in the environment of 20 ℃ at room temperature, otherwise the silk screen loses tension in about half a year, and the screen frame is scrapped. Therefore, the traditional net frame needs to be stored in an air-conditioned room, the storage requirement is high, and the occupied area of a storage warehouse is large.
(2) One finished screen frame can only be used for printing one PCB, and silk screens and pattern plates cannot be replaced, so that the space occupied by the screen frame is large.
(3) The pattern board is manufactured in a long time, the pattern of the PCB board is generally composed of holes, the holes are drilled using a special drilling machine, several tens of thousands of holes are formed in one pattern having a general size, the manufacturing takes a long time, and each pattern board is manufactured in a time of about one day.
Disclosure of Invention
Based on this, the invention aims to overcome the defects in the prior art and provide a screen printing adjustable frame and a screen printing screen frame.
A screen printing adjustable frame is rectangular and comprises a first frame, a second frame, a third frame, a fourth frame, two first adjusting parts and a plurality of pressing plates, wherein the first frame, the second frame, the third frame and the fourth frame are sequentially adjacent;
two ends of the first frame are movably connected with one ends of the second frame and the fourth frame respectively, and the moving direction of the first frame is consistent with the length direction of the second frame;
one first adjusting piece is connected with the first frame and the second frame, the other first adjusting piece is connected with the first frame and the fourth frame, and the first adjusting piece is used for adjusting the moving distance of the first frame;
each pressing plate is connected with the frame, and the pressing plates and the frame press the edges of the pattern plate together.
According to the silk-screen adjustable frame, the pattern plate is compressed through the pressing plate and the frame together, the first edge frame and one edge of the pattern plate are driven to move through the first adjusting piece, the pattern plate can be tensioned, and the first adjusting piece can be adjusted again even if the pattern plate is deformed, so that the pattern plate is tensioned again;
the pattern plate is detachably connected with the frame, the frame can be reused, the pattern plate is convenient to replace, the production cost is reduced, and only the pattern plate needs to be stored when the screen frame is stored, the thickness of one pattern plate is only 0.2-0.5mm, so that the screen frame saves a great space compared with a whole screen frame (generally 36mm in thickness), and the storage space of the screen frame is reduced; the pattern plate does not need to be tensioned when being stored, and the adjustable screen frame can be used for being remounted and tensioned when being used, so that compared with the requirement of the traditional screen frame on the storage environment, the storage space and the storage cost of the screen frame can be reduced, and the manufacturing efficiency is greatly improved;
the pattern plate is manufactured by using a developing etching process, and the manufacturing time is short.
Furthermore, two ends of the first frame are provided with first through holes, and the axis direction of the first through holes is consistent with the moving direction of the first frame; one end of the second frame and one end of the fourth frame are provided with corresponding jacks;
the device also comprises two guide posts; the first ends of the guide posts are correspondingly arranged in the jack; the second ends of the guide posts are slidably arranged in the corresponding first through holes; the two guide posts are connected with the first frame, the second frame and the fourth frame, so that the first frame can move relative to the guide posts, the second frame and the fourth frame;
the device also comprises two fixing screws; the fixing screw penetrates through the guide column from the first through hole and is further in threaded connection with the bottom of the jack; the head of the fixing screw compresses the guide post.
The adoption of the further scheme has the beneficial effects that the first frame can move relative to the second frame and the fourth frame by arranging the guide columns; the guide post is fixed on the second frame or the fourth frame through the fixing screws, the structure is simple, the guide post is easy to realize, and the operation and the adjustment are convenient.
Further, the first adjusting piece is a first adjusting screw; and the two ends of the first frame are provided with first threaded holes, the first adjusting screws are in threaded connection with the first threaded holes, and the tail parts of the first adjusting screws tightly support the second frame or the fourth frame.
The beneficial effect of adopting the further proposal is that the first adjusting piece is a first adjusting screw; and the two ends of the first frame are provided with first threaded holes, the first adjusting screws are in threaded connection with the first threaded holes, and the tail parts of the first adjusting screws tightly support the second frame or the fourth frame.
Further, also includes
The tensioning strip is movably arranged on the second frame, and the moving direction of the tensioning strip is consistent with the length direction of the first frame;
and the second adjusting pieces are connected with the second frame and the tensioning strip and used for adjusting the moving distance of the tensioning strip.
The beneficial effect who adopts above-mentioned further scheme is that, drive through the second regulating part and draw tight strip and the other edge of pattern board and remove, combine first regulating part to the regulation of first frame, and then can realize bilateral tensioning pattern board, even pattern board warp also can adjust once more first regulating part and second regulating part, and then tensioning pattern board again.
Furthermore, a second through hole is formed in the outer side face of the second frame, and the axis direction of the second through hole is consistent with the moving direction of the tensioning strip;
the second adjusting piece is a second adjusting screw; the second adjusting screw penetrates through the second through hole to be in threaded connection with the tensioning strip, and the moving distance of the tensioning strip can be adjusted by rotating the second adjusting screw;
still include a plurality of elastic components, the elastic component sets up between taut strip and second frame, the elastic component to taut strip exerts tension, and the direction of tension is unanimous with the moving direction of taut strip.
Adopt above-mentioned further scheme's beneficial effect is, make tensioning strip and second frame push up each other through the elastic component, can push up the tensioning strip when dismantling, reach the effect of automatic loosening tensioning strip, tensioning strip and second frame are locked through the second adjusting screw simultaneously, and then the accessible is twisted and is moved the second adjusting screw, and then reduce the distance of tensioning strip and second frame, and then can make another edge of the pattern plate of being connected with tensioning strip and the common removal of tensioning strip, and then reach the purpose at another edge of tensioning pattern plate.
Furthermore, an accommodating groove is formed in the inner side of the second frame, the tensioning strip is arranged in the accommodating groove, and the accommodating groove supports the tensioning strip;
the second adjusting screw sleeve is provided with a gasket, and the gasket is positioned between the head of the second adjusting screw and the side face of the second frame; the elastic piece is sleeved on the second adjusting screw;
the locking device also comprises a plurality of locking screws; a plurality of strip holes are formed in the positions, corresponding to the accommodating grooves, of the bottom surface of the second frame, and the length direction of each strip hole is consistent with the moving direction of the tensioning strip; each locking screw passes through the elongated hole and is threadedly connected to the bottom of the tightening bar.
The holding tank is arranged to accommodate the tensioning strip, so that the tensioning strip is consistent with the appearance of other frames after being combined with the second frame, the integrity of the frame is kept, meanwhile, the holding tank can support the tensioning strip, a second adjusting screw is prevented from supporting the tensioning strip, and the service lives of the second adjusting screw and the frame are prolonged; due to the containing groove, a second adjusting screw can be arranged at the edge of the second frame, and the structure is simple;
the tensioning strip and the second frame are pre-tightened under the action of the spring by arranging the gasket, so that the second adjusting screw can be adjusted conveniently, the gasket can be preferably a nylon gasket, the nylon gasket can generate elasticity when being compressed by the second adjusting screw, and the pattern plate can generate elastic deformation to generate tension when being tensioned, so that the pattern plate is tensioned; the elastic piece can adopt a rubber O-shaped ring, is sleeved on the second adjusting screw, is convenient to mount and dismount and is reasonable in design;
through the locking screw, after the second adjusting screw has been adjusted, make the tightening strip and holding tank locking through the locking screw, and then make tightening strip and second frame locking, avoid tightening strip not hard up, maintain the tensioning of pattern plate.
Furthermore, a plurality of first positioning pins for positioning the pattern plate are arranged on the top surfaces of the first frame and the third frame; the top surfaces of the second frame and the fourth frame are provided with a plurality of second positioning pins for positioning the pattern plate; the positioning pin is used for conveniently mounting the pattern plate and tensioning the pattern plate through the positioning hole.
The scheme has the advantages that when the pattern plate is tensioned and adjusted on one side, the edge of the pattern plate can be positioned by arranging the first positioning pin and the second positioning pin; firstly, mounting the pattern plate on a locating pin, further pressing two sides of the pattern plate in the vertical tensioning direction by using a pressing plate for fixing the first frame and the third frame by using screws, and further adjusting the first adjusting screw to tension the pattern plate; when the first adjusting screw is adjusted to tension the pattern plate, the pattern plate can deform or displace, and the long hole of the pattern plate can reserve an adjusting space in the tensioning direction for the pattern plate. And then the pressing plates of the second frame and the fourth frame are fixed by screws, and the edges of the pattern plate parallel to the tensioning direction are pressed tightly.
Furthermore, a plurality of first positioning pins for positioning the pattern plate are arranged on the top surfaces of the first frame and the third frame; and a plurality of second positioning pins for positioning the pattern plate are arranged on the top surfaces of the tensioning strip and the fourth frame.
The adoption of the further scheme has the beneficial effects that when the pattern plate is tensioned and adjusted on the two sides, the edge of the pattern plate can be positioned by arranging the first positioning pin and the second positioning pin; firstly, mounting the pattern plate on a locating pin, further pressing two sides of the pattern plate in the vertical tensioning direction by using a pressing plate for fixing the first frame and the third frame by using screws, and further adjusting the first adjusting screw to tension the pattern plate; and then the pressing plates of the second frame and the fourth frame are fixed by screws, and the edges of the pattern plate parallel to the tensioning direction are pressed tightly. When the first adjusting screw is adjusted to tension the pattern plate, the pattern plate can deform or displace, and the long hole can reserve an adjusting space in the tensioning direction for the pattern plate; the second adjustment screw is then adjusted to tension the second adjustment direction.
The invention also provides a screen frame for screen printing, which comprises
The screen printing adjustable frame;
the edge of the pattern plate is provided with a first hole position corresponding to the first positioning pin; and a second hole position corresponding to the second positioning pin is arranged at the edge of the pattern plate.
Further, the first hole site is a profiled hole; the section shape of the special-shaped hole is formed by combining a large hole and a small hole, the large hole is partially overlapped with the small hole, and the diameter of the small hole is the same as that of the first positioning pin;
the second hole site is the slot hole, and the length direction of slot hole is unanimous with the length direction of fourth frame.
The adoption of the further scheme has the beneficial effects that the big holes are larger than the small holes, so that the first positioning pin can be conveniently sleeved in the pattern plate from the position of the big holes, and then the first positioning pin moves to the small holes after the pattern plate is tensioned; when the first adjusting screw is adjusted to tension the pattern plate, the pattern plate can deform or displace, and the long hole can reserve an adjusting space in the tensioning direction for the pattern plate.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic partial cross-sectional structure view of a screen frame according to one to three embodiments;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is an exploded view of a part of a screen frame according to the first to third embodiments;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is an enlarged view of a portion of FIG. 3 at C;
FIG. 6 is a schematic cross-sectional view of a shaped hole of the present invention;
FIG. 7 is a schematic cross-sectional view of a slot of the present invention.
Fig. 8 is a schematic partial cross-sectional view of a screen frame according to the fourth to sixth embodiments;
FIG. 9 is an enlarged view of a portion of FIG. 8 at D;
FIG. 10 is an enlarged view of a portion of FIG. 8 at E;
FIG. 11 is a schematic cross-sectional view taken at F-F in FIG. 8;
FIG. 12 is a schematic sectional view taken at G-G in FIG. 8;
FIG. 13 is an exploded view of a screen frame according to the fourth to sixth embodiments;
FIG. 14 is an enlarged view of a portion of FIG. 13 at H;
FIG. 15 is an enlarged view of a portion of FIG. 13 at I;
fig. 16 is a partial enlarged view at J in fig. 13.
In the figure: 11. a first frame; 111. a first through hole; 112. a first threaded hole; 12. a second frame; 121. a second through hole; 122. accommodating grooves; 123. a strip hole; 13. a third frame; 14. a fourth frame; 141. a jack; 15. a first positioning pin; 16. a second positioning pin; 20. a first adjustment member; 30. a pattern plate; 31. a first hole site; 311. macropores; 312. a small hole; 32. a long hole; 40. pressing a plate; 51. a guide post; 52. fixing screws; 53. a bushing; 60. tightening the strip; 71. a second adjustment member; 72. an elastic member; 73. a gasket; 74. and locking the screw.
Detailed Description
The first embodiment is as follows:
referring to fig. 1 to 3, a screen frame of the present embodiment is a screen frame with an adjustable single edge, and includes a screen adjustable frame and a pattern plate 30;
specifically, the adjustable frame for screen printing comprises a first frame 11, a second frame 12, a third frame 13 and a fourth frame 14 which are sequentially adjacent to each other, and the adjustable frame for screen printing further comprises two first adjusting parts 20, four pressing plates 40, two guide posts 51 and two fixing screws 52; the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14 are combined to form a rectangular shape; second frame 12, third frame 13 and fourth frame 14 fixed connection, second frame 12, third frame 13 and fourth frame 14 also can adopt integrated into one piece's mode to set up.
Specifically, two ends of the first frame 11 are movably connected with one end of the second frame 12 and one end of the fourth frame 14, respectively, and the moving direction of the first frame 11 is consistent with the length direction of the second frame 12;
more specifically, two ends of the first frame 11 are provided with first through holes 111, and an axial direction of the first through holes 111 is consistent with a moving direction of the first frame 11; one end of the second frame 12 and one end of the fourth frame 14 are provided with corresponding jacks 141;
the first end of the guide post 51 is correspondingly arranged in the jack 141; the second ends of the guide posts 51 are slidably arranged in the corresponding first through holes 111; the two guide posts 51 are connected with the first frame 11, the second frame 12 and the fourth frame 14, so that the first frame 11 can move relative to the guide posts 51, the second frame 12 and the fourth frame 14;
more specifically, the fixing screw 52 passes through the guide post 51 from the first through hole 111, and is further screwed with the bottom of the insertion hole 141; the head of the fixing screw 52 presses the guide post 51;
more specifically, the through holes are internally provided with bushings 53; the bushing 53 is sleeved outside the corresponding guide post 51.
Specifically, the first adjusting member 20 is connected to the first frame 11 and the second frame 12, and the first adjusting member 20 is connected to the first frame 11 and the fourth frame 14, the first adjusting member 20 is used for adjusting the moving distance of the first frame 11;
more specifically, the first adjusting member 20 is a first adjusting screw; two ends of the first frame 11 are provided with first threaded holes 112, the first adjusting screws are respectively in threaded connection with the first threaded holes 112, and the tail parts of the first adjusting screws tightly support the second frame 12 or the fourth frame 14.
Specifically, the pattern plate 30 is arranged on the screen printing adjustable frame; the pattern plate 30 may preferably be made of pp material or other engineering plastics, and further, an aluminum plate and a stainless steel plate may be used; the size of the pattern direction on the pattern plate 30 selects the direction of ink blade motion to be the same or perpendicular to the direction of tensioning.
Specifically, each pressing plate 40 is connected with the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14, respectively, and presses the edge of the pattern plate 30; the pressing plate 40 is detachably coupled to the first, second, third and fourth rims 11, 12, 13 and 14, preferably by screws.
In the preferred embodiment, a rubberized fabric layer is attached to the edge of the pattern plate 30.
The working process of the embodiment:
the pattern plates 30 on the positions of the first frame 11 and the third frame 13 are pressed through the press plates 40 corresponding to the first frame 11 and the third frame 13, then the first adjusting screws are screwed to drive one edges of the first frame 11 and the pattern plates 30 to move, further the pattern plates 30 are tensioned, and then the pattern plates 30 on the positions of the second frame 12 and the fourth frame 14 are pressed through the press plates 40 corresponding to the second frame 12 and the fourth frame 14; the first regulating member 20 can be regulated again even if the pattern plate 30 is deformed, thereby re-tensioning the pattern plate 30.
Example two:
referring to fig. 1 to 7, the difference between the second embodiment and the first embodiment is that no rubberized fabric layer is attached to the edge of the pattern plate 30;
specifically, a plurality of first positioning pins 15 are arranged on the top surfaces of the first frame 11 and the third frame 13; a plurality of first hole sites 31 corresponding to the first positioning pins 15 are arranged on the pattern plate 30;
a plurality of second positioning pins 16 are arranged on the top surfaces of the second frame 12 and the fourth frame 14; the pattern plate 30 is provided with a plurality of long holes 32 corresponding to the second positioning pins 16, and the length direction of the long holes 32 is consistent with the length direction of the second frame 12 or the fourth frame 14;
in a preferred embodiment, the first hole 31 is a profiled hole; the section shape of the special-shaped hole is formed by combining a large hole 311 and a small hole 312, the large hole 311 is partially overlapped with the small hole 312, and the diameter of the small hole 312 is the same as that of the first positioning pin 15.
The working process of the embodiment:
firstly, mounting a pattern plate 30 on a screen printing adjustable frame, enabling a first positioning pin 15 to be inserted into a first hole position 31, enabling a second positioning pin 16 to be inserted into a long hole 32, tightly pressing the pattern plate 30 on the positions of a first frame 11 and a third frame 13 through a pressing plate 40 corresponding to the first frame 11 and the third frame 13, further driving one edges of the first frame 11 and the pattern plate 30 to move by screwing a first adjusting screw, further tensioning the pattern plate 30, and further tightly pressing the pattern plate 30 on the positions of a second frame 12 and a fourth frame 14 through the pressing plate 40 corresponding to the second frame 12 and the fourth frame 14; the first regulating member 20 can be regulated again even if the pattern plate 30 is deformed, thereby re-tensioning the pattern plate 30.
Example three:
referring to fig. 1 to 7, a difference between the third embodiment and the second embodiment is that the top surfaces of the second frame 12 and the fourth frame 14 are not provided with the second positioning pins 16; the pattern plate 30 is not provided with a long hole 32 corresponding to the second positioning pin 16;
specifically, the pattern plate 30 is attached with a rubberized fabric layer corresponding to the edges of the second frame 12 and the fourth frame 14.
The working process of the embodiment:
firstly, mounting a pattern board 30 on a screen printing adjustable frame, enabling a first positioning pin 15 to be inserted into a first hole position 31, tightly pressing the pattern board 30 on the positions of a first frame 11 and a third frame 13 through a pressing plate 40 corresponding to the first frame 11 and the third frame 13, and further attaching a rubberized fabric layer on the edges of the pattern board 30 corresponding to a second frame 12 and a fourth frame 14, so that certain tension is formed in the non-tensioning direction of the pattern board 30; then, the first adjusting screw is screwed to drive one edge of the first frame 11 and one edge of the pattern plate 30 to move, so that the pattern plate 30 is tensioned, and the pattern plate 30 on the second frame 12 and the fourth frame 14 is pressed tightly through the pressing plates 40 corresponding to the second frame 12 and the fourth frame 14; the first regulating member 20 can be regulated again even if the pattern plate 30 is deformed, thereby re-tensioning the pattern plate 30.
Example four:
referring to fig. 8 to 13, a screen frame of the present embodiment is a screen frame with adjustable two sides, and includes a screen adjustable frame and a pattern plate 30;
specifically, the screen printing adjustable frame comprises a first frame 11, a second frame 12, a third frame 13 and a fourth frame 14 which are sequentially adjacent to each other; the screen printing adjustable frame further comprises two first adjusting parts 20, a tensioning bar 60, five second adjusting parts 71, four press plates 40, two guide posts 51 and two fixing screws 52; the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14 are combined to form a rectangular shape; second frame 12, third frame 13 and fourth frame 14 fixed connection, second frame 12, third frame 13 and fourth frame 14 also can adopt integrated into one piece's mode to set up.
Specifically, two ends of the first frame 11 are movably connected with one end of the second frame 12 and one end of the fourth frame 14, respectively, and the moving direction of the first frame 11 is consistent with the length direction of the second frame 12;
more specifically, two ends of the first frame 11 are provided with first through holes 111, and an axial direction of the first through holes 111 is consistent with a moving direction of the first frame 11; one end of the second frame 12 and one end of the fourth frame 14 are provided with corresponding jacks 141;
the first end of the guide post 51 is correspondingly arranged in the jack 141; the second ends of the guide posts 51 are slidably arranged in the corresponding first through holes 111; the two guide posts 51 are connected with the first frame 11, the second frame 12 and the fourth frame 14, so that the first frame 11 can move relative to the guide posts 51, the second frame 12 and the fourth frame 14;
more specifically, the fixing screw 52 passes through the guide post 51 from the first through hole 111, and is further screwed with the bottom of the insertion hole 141; the head of the fixing screw 52 presses the guide post 51;
more specifically, the first through holes 111 are all provided with bushings 53; the bushing 53 is sleeved outside the corresponding guide post 51.
Specifically, one of the first adjusting members 20 is connected to the first frame 11 and the second frame 12, the other first adjusting member 20 is connected to the first frame 11 and the fourth frame 14, and the first adjusting member 20 is used for adjusting the moving distance of the first frame 11;
more specifically, the first adjusting member 20 is a first adjusting screw; two ends of the first frame 11 are provided with first threaded holes 112, the first adjusting screws are in threaded connection with the first threaded holes 112, and the tail parts of the first adjusting screws tightly support the second frame 12 or the fourth frame 14.
Specifically, the tightening strip 60 is movably disposed on the second frame 12, and the moving direction of the tightening strip 60 is consistent with the length direction of the first frame 11; the second adjusting piece 71 is connected with the second frame 12 and the tightening strip 60, and the second adjusting piece 71 is used for adjusting the moving distance of the tightening strip 60;
more specifically, a second through hole 121 is formed in the outer side surface of the second frame 12, and the axial direction of the second through hole 121 is consistent with the moving direction of the tightening strip 60;
the second adjusting piece 71 is a second adjusting screw; the second adjusting screw passes through the second through hole 121 to be in threaded connection with the tensioning bar 60, and the moving distance of the tensioning bar 60 can be adjusted by rotating the second adjusting screw;
the elastic pieces 72 are arranged between the tensioning strip 60 and the second frame 12, and the elastic pieces 72 apply tension to the tensioning strip 60, wherein the tension direction is consistent with the moving direction of the tensioning strip 60; the elastic pieces 72 are respectively sleeved on the second adjusting screws;
more specifically, an accommodating groove 122 is formed in the inner side of the second frame 12, the tightening strip 60 is disposed in the accommodating groove 122, and the accommodating groove 122 supports the tightening strip 60;
more specifically, the second adjusting screw is sleeved with a washer 73, and the washer 73 is located between the head of the second adjusting screw and the side surface of the second frame 12; preferably, the washer 73 may be preferably a nylon washer 73, and the elastic member 72 may be a rubber O-ring;
more specifically, a plurality of elongated holes 123 are formed in the bottom surface of the second frame 12 at positions corresponding to the receiving grooves 122, and the length direction of the elongated holes 123 is consistent with the moving direction of the tightening strip 60; each locking screw 74 passes through the elongated hole 123 and is threadedly coupled to the bottom of the tensioning bar 60.
Specifically, the pattern plate 30 is arranged on the screen printing adjustable frame; the pattern plate 30 may preferably be pp material, and further, an aluminum plate and a stainless plate may be used; the size of the pattern direction on the pattern plate 30 selects the direction of ink blade motion to be the same or perpendicular to the direction of tensioning.
Specifically, each pressing plate 40 is connected with the first frame 11, the tightening strip 60, the third frame 13 and the fourth frame 14, respectively, and presses the edge of the pattern plate 30; the pressing plate 40 is detachably coupled to the first, second, third and fourth rims 11, 12, 13 and 14, preferably by screws.
In a preferred embodiment, a rubberized fabric layer is attached to an edge of the pattern plate 30, and the rubberized fabric layer can make the edge of the pattern plate 30 have a certain tension in advance.
The working process of the embodiment:
the pattern plate 30 on the first frame 11 and the third frame 13 is pressed by the pressing plates 40 corresponding to the first frame 11 and the third frame 13, and then the first adjusting screw is screwed to drive one edge of the first frame 11 and one edge of the pattern plate 30 to move, so that the pattern plate 30 is tensioned in the length direction of the second frame 12;
further, the tensioning bar 60 and the pattern plate 30 on the position of the fourth frame 14 are pressed tightly by the tensioning bar 60 and the pressing plate 40 corresponding to the fourth frame 14, each second adjusting screw is screwed, so that the tensioning bar 60 compresses the elastic piece 72 and leans against the second frame 12, meanwhile, the pattern plate 30 is tensioned along the length direction of the first frame 11, and finally, the tensioning bar 60 and the accommodating groove 122 are locked tightly by the locking screw 74; the first and second regulating members 20 and 71 can be regulated again even if the pattern plate 30 is deformed, thereby re-tensioning the pattern plate 30.
Example five:
referring to fig. 6 to 16, a difference between the fifth embodiment and the fourth embodiment is that no rubberized fabric layer is attached to the edge of the pattern plate 30;
specifically, a plurality of first positioning pins 15 are arranged on the top surfaces of the first frame 11 and the third frame 13; a plurality of first hole sites 31 corresponding to the first positioning pins 15 are arranged on the pattern plate 30;
the top surfaces of the tensioning strip 60 and the fourth frame 14 are provided with a plurality of second positioning pins 16; the pattern plate 30 is provided with a plurality of long holes 32 corresponding to the second positioning pins 16, and the length direction of the long holes 32 is consistent with that of the tensioning strips 60 or the fourth frame 14;
in a preferred embodiment, the first hole 31 is a profiled hole; the section shape of the special-shaped hole is formed by combining a large hole 311 and a small hole 312, the large hole 311 is partially overlapped with the small hole 312, and the diameter of the small hole 312 is the same as that of the first positioning pin 15.
The working process of the embodiment:
firstly, mounting a pattern plate 30 on a screen printing adjustable frame, enabling a first positioning pin 15 to be inserted into a first hole position 31, enabling a second positioning pin 16 to be inserted into a long hole 32, tightly pressing the pattern plate 30 on the positions of a first frame 11 and a third frame 13 through pressure plates 40 corresponding to the first frame 11 and the third frame 13, further driving one edges of the first frame 11 and the pattern plate 30 to move by screwing adjusting screws, and further tensioning the pattern plate 30 in the length direction of a second frame 12;
further, the tensioning bar 60 and the pattern plate 30 on the position of the fourth frame 14 are pressed tightly by the tensioning bar 60 and the pressing plate 40 corresponding to the fourth frame 14, and then each second adjusting screw is screwed, so that the tensioning bar 60 compresses the elastic piece 72 and leans against the second frame 12, meanwhile, the pattern plate 30 is tensioned along the length direction of the first frame 11, and finally, the tensioning bar 60 and the accommodating groove 122 are locked tightly by the locking screw 74; the first and second regulating members 20 and 71 can be regulated again even if the pattern plate 30 is deformed, thereby re-tensioning the pattern plate 30.
Example six:
referring to fig. 6 to 16, a sixth embodiment differs from the fifth embodiment in that the top surfaces of the tightening strip 60 and the fourth frame 14 are not provided with the second positioning pin 16; the pattern plate 30 is not provided with a long hole 32 corresponding to the second positioning pin 16;
specifically, the pattern plate 30 is attached with a rubberized fabric layer corresponding to the edges of the second frame 12 and the fourth frame 14.
The working process of the embodiment:
firstly, mounting a pattern board 30 on a screen printing adjustable frame, enabling a first positioning pin 15 to be inserted into a first hole position 31, tightly pressing the pattern board 30 on the positions of a first frame 11 and a third frame 13 through a pressing plate 40 corresponding to the first frame 11 and the third frame 13, and further attaching a rubberized fabric layer on the edges of the pattern board 30 corresponding to a second frame 12 and a fourth frame 14, so that certain tension is formed in the non-tensioning direction of the pattern board 30; then, the first adjusting screw is screwed to drive one edge of the first frame 11 and one edge of the pattern plate 30 to move, and the pattern plate 30 is tensioned in the length direction of the second frame 12;
further, the tensioning bar 60 and the pattern plate 30 on the position of the fourth frame 14 are pressed tightly by the tensioning bar 60 and the pressing plate 40 corresponding to the fourth frame 14, each second adjusting screw is screwed, so that the tensioning bar 60 compresses the elastic piece 72 and leans against the second frame 12, meanwhile, the pattern plate 30 is tensioned along the length direction of the first frame 11, and finally, the tensioning bar 60 and the accommodating groove 122 are locked tightly by the locking screw 74; the first and second regulating members 20 and 71 can be regulated again even if the pattern plate 30 is deformed, thereby re-tensioning the pattern plate 30.
Compared with the prior art, the silk-screen adjustable frame and the press plate are used for compressing the pattern plate together, the first edge frame and one edge of the pattern plate are driven to move through the first adjusting piece, so that the pattern plate can be tensioned, and the first adjusting piece can be adjusted again even if the pattern plate is deformed, so that the pattern plate is tensioned again;
the pattern plate is detachably connected with the screen printing adjustable frame, the screen printing adjustable frame can be reused, the pattern plate is convenient to replace, the production cost is reduced, and the pattern plate only needs to be stored when being stored, the thickness of one pattern plate is only 0.2-0.5mm, so that the great space is saved compared with the storage of the whole screen frame (generally 36mm in thickness), and the storage space of the screen frame is reduced; the pattern plate does not need to be tensioned when being stored, and the adjustable screen frame can be used for being remounted and tensioned when being used, so that the storage space and the storage cost of the screen frame can be reduced compared with the requirement of the traditional screen frame on the storage environment;
the pattern plate is manufactured by using a developing etching process, and the manufacturing time is short.
In addition, the invention also has the following beneficial effects:
the first frame can move relative to the second frame and the fourth frame by arranging the guide columns; the guide post is fixed on the second frame or the fourth frame through the fixing screws, the structure is simple, the guide post is easy to realize, and the operation and the adjustment are convenient.
The first adjusting piece is a first adjusting screw; and the two ends of the first frame are provided with first threaded holes, the first adjusting screws are in threaded connection with the first threaded holes, and the tail parts of the first adjusting screws tightly support the second frame or the fourth frame.
The second adjusting piece drives the tensioning strip and the other edge of the pattern plate to move, the first adjusting piece is combined to adjust the first frame, the pattern plate can be tensioned on two sides, the first adjusting piece and the second adjusting piece can be adjusted again even if the pattern plate is deformed, and then the pattern plate is tensioned again.
Make taut strip and second frame back up each other through the elastic component, through second adjusting screw locking taut strip and second frame simultaneously, and then the accessible is twisted and is moved second adjusting screw, and then dwindles the distance of taut strip and second frame, and then can make another edge of the pattern board of being connected with taut strip remove with taut strip jointly, and then reach the purpose at taut pattern board another edge.
By arranging the accommodating groove, the tensioning strip can be accommodated, so that the appearance of the tensioning strip is consistent with that of other frames after the tensioning strip is combined with the second frame, the integrity of the screen printing adjustable frame is kept, meanwhile, the accommodating groove can support the tensioning strip, a second adjusting screw is prevented from supporting the tensioning strip, and the service lives of the second adjusting screw and the screen printing adjustable frame are prolonged; due to the containing groove, a second adjusting screw can be arranged at the edge of the second frame, and the structure is simple;
the gasket is arranged, so that the tensioning strip and the second frame are pre-tightened under the action of the spring, the second adjusting screw is convenient to adjust, and the gasket can be preferably a nylon gasket; the elastic piece can adopt a rubber O-shaped ring, is sleeved on the second adjusting screw, is convenient to mount and dismount, and is reasonable in design.
When the pattern plate is tensioned and adjusted on one side, the edge of the pattern plate can be positioned by arranging the first positioning pin and the second positioning pin; firstly, mounting the pattern plate on a locating pin, further pressing two sides of the pattern plate in the vertical tensioning direction by using a pressing plate for fixing the first frame and the third frame by using screws, and further adjusting the first adjusting screw to tension the pattern plate; when the first adjusting screw is adjusted to tension the pattern plate, the pattern plate can deform or displace, and the long hole of the pattern plate can reserve an adjusting space in the tensioning direction for the pattern plate. Then the press plates of the second frame and the fourth frame are fixed by screws, and the edges of the pattern plate parallel to the tensioning direction are pressed tightly
When the pattern plate is tensioned and adjusted on two sides, the edge of the pattern plate can be positioned by arranging the first positioning pin and the second positioning pin; firstly, mounting the pattern plate on a locating pin, further pressing two sides of the pattern plate in the vertical tensioning direction by using a pressing plate for fixing the first frame and the third frame by using screws, and further adjusting the first adjusting screw to tension the pattern plate; and then the pressing plates of the second frame and the fourth frame are fixed by screws, and the edges of the pattern plate parallel to the tensioning direction are pressed tightly. When the first adjusting screw is adjusted to tension the pattern plate, the pattern plate can deform or displace, and the long hole can reserve an adjusting space in the tensioning direction for the pattern plate; the second adjustment screw is then adjusted to tension the second adjustment direction.
The big hole is larger than the small hole, so that the first positioning pin can be conveniently sleeved in the pattern plate from the big hole, and then the first positioning pin moves to the small hole after the pattern plate is tensioned.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. A screen printing adjustable frame is rectangular and is characterized by comprising
The frame comprises a first frame, a second frame, a third frame and a fourth frame which are sequentially adjacent, wherein two ends of the first frame are movably connected with one end of the second frame and one end of the fourth frame respectively, and the moving direction of the first frame is consistent with the length direction of the second frame;
one first adjusting piece is connected with the first frame and the second frame, the other first adjusting piece is connected with the first frame and the fourth frame, and the first adjusting piece is used for adjusting the moving distance of the first frame;
and the pressing plates are connected with the frame and are used for pressing the edges of the pattern plate together with the frame.
2. The screen printing adjustable frame of claim 1, wherein two ends of the first frame are provided with first through holes, and the axial direction of the first through holes is consistent with the moving direction of the first frame; one end of the second frame and one end of the fourth frame are provided with corresponding jacks;
the device also comprises two guide posts; the first ends of the guide posts are correspondingly arranged in the jack; the second ends of the guide posts are slidably arranged in the corresponding first through holes; the two guide posts are connected with the first frame, the second frame and the fourth frame, so that the first frame can move relative to the guide posts, the second frame and the fourth frame;
the device also comprises two fixing screws; the fixing screw penetrates through the guide column from the first through hole and is further in threaded connection with the bottom of the jack; the head of the fixing screw compresses the guide post.
3. The screen-printing adjustable frame of claim 1, wherein the first adjusting member is a first adjusting screw; and the two ends of the first frame are provided with first threaded holes, the first adjusting screws are in threaded connection with the first threaded holes, and the tail parts of the first adjusting screws tightly support the second frame or the fourth frame.
4. The screen-printing adjustable frame of claim 1, further comprising
The tensioning strip is movably arranged on the second frame, and the moving direction of the tensioning strip is consistent with the length direction of the first frame;
and the second adjusting pieces are connected with the second frame and the tensioning strip and used for adjusting the moving distance of the tensioning strip.
5. The screen printing adjustable frame of claim 4, wherein the outer side surface of the second frame is provided with a second through hole, and the axial direction of the second through hole is consistent with the moving direction of the tensioning strip;
the second adjusting piece is a second adjusting screw; the second adjusting screw penetrates through the second through hole to be in threaded connection with the tensioning strip, and the moving distance of the tensioning strip can be adjusted by rotating the second adjusting screw;
still include a plurality of elastic components, the elastic component sets up between taut strip and second frame, the elastic component to taut strip exerts tension, and the direction of tension is unanimous with the moving direction of taut strip.
6. The screen-printing adjustable frame of claim 5, wherein the inner side of the second frame is provided with a receiving groove, the tensioning strip is arranged in the receiving groove, and the receiving groove supports the tensioning strip;
the second adjusting screw sleeve is provided with a gasket, and the gasket is positioned between the head of the second adjusting screw and the side face of the second frame; the elastic piece is sleeved on the second adjusting screw;
the locking device also comprises a plurality of locking screws; a plurality of strip holes are formed in the positions, corresponding to the accommodating grooves, of the bottom surface of the second frame, and the length direction of each strip hole is consistent with the moving direction of the tensioning strip; each locking screw passes through the elongated hole and is threadedly connected to the bottom of the tightening bar.
7. The screen printing adjustable frame according to any one of claims 1 to 6, wherein the top surfaces of the first frame and the third frame are provided with a plurality of first positioning pins for positioning the pattern plate; and a plurality of second positioning pins for positioning the pattern plate are arranged on the top surfaces of the second frame and the fourth frame.
8. The screen printing adjustable frame according to any one of claims 4 to 6, wherein the top surfaces of the first frame and the third frame are provided with a plurality of first positioning pins for positioning the pattern plate; and a plurality of second positioning pins for positioning the pattern plate are arranged on the top surfaces of the tensioning strip and the fourth frame.
9. A screen frame for screen printing is characterized by comprising
The screen-printing adjustable frame of claim 8 or 9;
the edge of the pattern plate is provided with a first hole position corresponding to the first positioning pin; and a second hole position corresponding to the second positioning pin is arranged at the edge of the pattern plate.
10. The screen frame of claim 9, wherein the first hole sites are profiled holes; the section shape of the special-shaped hole is formed by combining a large hole and a small hole, the large hole is partially overlapped with the small hole, and the diameter of the small hole is the same as that of the first positioning pin;
the second hole site is the slot hole, and the length direction of slot hole is unanimous with the length direction of fourth frame.
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| CN202110173901.0A CN112976779B (en) | 2021-02-09 | 2021-02-09 | Adjustable frame of silk screen printing and silk screen frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110173901.0A CN112976779B (en) | 2021-02-09 | 2021-02-09 | Adjustable frame of silk screen printing and silk screen frame |
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| CN112976779A true CN112976779A (en) | 2021-06-18 |
| CN112976779B CN112976779B (en) | 2022-02-15 |
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