CN116985518A - Accurate resistance silk screen printing mechanism - Google Patents
Accurate resistance silk screen printing mechanism Download PDFInfo
- Publication number
- CN116985518A CN116985518A CN202311252976.3A CN202311252976A CN116985518A CN 116985518 A CN116985518 A CN 116985518A CN 202311252976 A CN202311252976 A CN 202311252976A CN 116985518 A CN116985518 A CN 116985518A
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- plate
- screen printing
- printing
- panel
- support plate
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- 238000007650 screen-printing Methods 0.000 title claims abstract description 93
- 230000007246 mechanism Effects 0.000 title claims abstract description 71
- 238000007639 printing Methods 0.000 claims abstract description 97
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000007790 scraping Methods 0.000 claims description 27
- 230000007306 turnover Effects 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 15
- 239000000758 substrate Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
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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
- B41F15/44—Squeegees or doctors
- B41F15/46—Squeegees or doctors with two or more operative parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/16—Printing tables
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
- H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/12—Screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/13—Devices for increasing ink penetration
- B41P2215/132—Devices for increasing ink penetration by increasing pressure above the screen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/50—Screen printing machines for particular purposes
Abstract
The invention relates to the field of screen printing equipment, in particular to an accurate resistor screen printing mechanism, which comprises a rack and a screen printing mechanism arranged on the rack, wherein a support rod is arranged on the rack, a first support plate and a second support plate are arranged on the support rod, the first support plate is arranged above the second support plate, the first support plate is fixedly arranged with the support rod, the second support plate and the support rod are movably arranged, a pushing cylinder is arranged on the first support plate, the pushing cylinder is connected with the first support plate and the second support plate, the second support plate can be close to or far away from the first support plate in a parallel state under the driving action of the pushing cylinder, and the screen printing mechanism comprises a screen printing plate, a screen printing scraper group, a printing table and a printing plate, so that the technical problem that the accuracy is reduced due to insufficient positioning accuracy of a substrate in the conventional resistor screen printing mechanism in the screen printing process is solved.
Description
Technical Field
The invention relates to the field of screen printing equipment, in particular to an accurate resistance screen printing mechanism.
Background
Screen printing is to use a screen as a substrate and make a screen printing plate with graphics and texts by a photosensitive plate making method. Screen printing consists of five major elements, screen printing plate, squeegee, ink, printing table and printing stock. The basic principle that the mesh of the image-text part of the screen plate can be penetrated by ink and the mesh of the non-image-text part can not be penetrated by ink is utilized for printing. When in printing, ink is poured into one end of the screen printing plate, a certain pressure is applied to the ink part on the screen printing plate by the scraping plate, meanwhile, the ink moves at a constant speed towards the other end of the screen printing plate, and the ink is extruded onto a printing stock from the mesh of the image-text part by the scraping plate in the moving process.
A chip Resistor (SMD Resistor), also known as a chip fixed Resistor (Chip Fixed Resistor), is one of the metallic glass glaze resistors. The resistor is manufactured by mixing metal powder and glass glaze powder and printing the mixture on a substrate by adopting a screen printing method. Is resistant to moisture and high temperature, and has small temperature coefficient. The circuit space cost can be greatly saved, the design is more refined, and the circuit has the characteristics that: the volume is small, and the weight is light; adapting to reflow soldering and wave soldering; the electrical property is stable, and the reliability is high; the assembly cost is low and is matched with automatic mounting equipment; high mechanical strength, excellent high-frequency characteristics, and the like.
The invention patent with the Chinese patent application number of 201910413211.0 discloses a resistor silk-screen printing mechanism, and relates to the field of resistor production and processing. The device comprises a mounting frame, a substrate positioning and jacking mechanism and a silk screen printing pressure adjusting mechanism, wherein the silk screen printing pressure adjusting mechanism is positioned between the substrate positioning and jacking mechanism and the mounting frame; the screen printing pressure adjusting mechanism comprises a mounting frame, a screen mesh arranged on the mounting frame, an adjustable screen printing module and a sliding bottom plate; the substrate positioning mechanism comprises a printing table for supporting the resistance silk-screen substrate, a positioning module capable of blocking the front edge of the printing table in a lifting mode in a static mode, and a clamping module for simultaneously applying acting force to the resistance silk-screen substrate from the rear edge and the second side edge of the printing table so that the resistance silk-screen substrate can be simultaneously abutted against the front edge and the first side edge of the printing table and further clamped with the positioning module in a matched mode. The technical scheme provided by the invention can realize the production and processing of the pressure-sensitive chip resistor, and has no influence on a production line when the resistor is produced. In the process of resistance silk screen printing, a printed substrate needs to be firmly fixed on a workbench in the process of resistance silk screen printing, and meanwhile, a fixing device cannot interfere with the printing process.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides the accurate resistance silk-screen printing mechanism, which solves the technical problem that the precision of the existing resistance silk-screen printing mechanism is reduced because the positioning precision of the substrate is insufficient in the silk-screen printing process.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides an accurate resistance silk screen printing mechanism, includes the frame and set up in silk screen printing mechanism in the frame, be provided with the bracing piece in the frame, be provided with first backup pad and second backup pad on the bracing piece, first backup pad set up in second backup pad top, first backup pad with the bracing piece is fixed to be set up, second backup pad with the bracing piece activity sets up, be provided with the promotion cylinder in the first backup pad, the promotion cylinder is connected first backup pad with the second backup pad, the second backup pad with first backup pad is parallel to each other the drive effect of promotion cylinder the second backup pad can be close to or keep away from with parallel state first backup pad, silk screen printing mechanism includes silk screen printing plate, silk screen printing scraper blade group, printing platform and printing plate;
the printing table is fixedly arranged on the second supporting plate, the printing table and the second supporting plate are mutually parallel, a printing groove is formed in the printing table, the screen printing plate and the printing stock are arranged in the printing groove, the screen printing plate is arranged above the printing stock, a first positioning mechanism and a second positioning mechanism are arranged in the printing groove, the first positioning mechanism is used for fixing the printing stock, the second positioning mechanism is used for fixing the screen printing plate, the first positioning mechanism comprises an anti-slip rubber layer arranged on the bottom surface of the printing groove and a first positioning protrusion arranged on the peripheral side surface of the printing groove, the anti-slip rubber layer is arranged on the bottom surface of the printing groove and at the center, the first positioning protrusion is a telescopic protrusion with a vertical cross section of a quarter circle, the first positioning protrusion can move up and down along the vertical direction on the peripheral side surface of the printing groove, the second positioning mechanism comprises a guide groove arranged in the printing groove and a guide groove arranged at four vertical edges, the first positioning protrusion is arranged in the guide groove, the guide groove can be hooked with the four positioning hooks, or the first positioning protrusion can be hooked with the four positioning hooks and the guide groove to the positioning hooks can extend out of the guide groove;
the silk screen printing scraper blade group set up in the upper surface of second backup pad, silk screen printing scraper blade group include unable adjustment base, drive arrangement, first connecting plate, second connecting plate, first scraper blade and second scraper blade, unable adjustment base fixed set up in the upper surface of second backup pad, drive arrangement fixed set up in on the unable adjustment base, first connecting plate with drive arrangement fixed connection, the second connecting plate with but first connecting plate swing joint, the second connecting plate is including the flexible splint that can stretch out and draw back from top to bottom, first scraper blade with the second scraper blade card is put on the flexible splint.
Further, the first scraping plate comprises a first panel and a turning mechanism arranged at the bottom of the first panel, and the first panel is fixedly connected with the second connecting plate; the second scraping plate comprises a second panel and a pressing mechanism arranged at the bottom of the second panel, the second panel is fixedly connected with the second connecting plate, and the first panel and the second panel are parallel to each other.
Further, the turning mechanism comprises an extension part, a turnover part and a feeding hole, wherein the extension part is mutually perpendicular to the first panel and extends towards one end far away from the second panel, the turnover part is arranged at the tail end of the free end of the extension part and turns over towards the direction of the first panel, the vertical section of the turnover part is arc-shaped, the feeding hole is a strip-shaped hole arranged on the first panel, and the feeding hole penetrates through the first panel.
Further, the free end tip of the turnover points toward the feed aperture.
Further, the material pressing mechanism comprises a feeding plate and a material pressing plate, the feeding plate and the second panel form an included angle of 30-45 degrees, the material pressing plate is parallel to the horizontal plane, and when the second panel is propped against the screen printing plate, the feeding plate and the screen printing plate form a feeding channel together.
Further, a side surface, close to the screen printing plate, of the feeding plate is provided with an outwards protruding arc-shaped guide surface.
Further, a vibration motor is integrally arranged in the second scraping plate, the vibration mode of the vibration motor is linear vibration, the second scraping plate can perform linear vibration along a vertical plane under the driving of the vibration motor, the vibration frequency is 8-12 times/second, and the vibration range is that the second scraping plate moves up and down by 0.1-0.3mm based on the initial position of the second scraping plate.
By adopting the technical scheme, the invention has the beneficial effects that:
1. compared with the existing resistance screen printing mechanism, the invention has the advantages that the positioning and fixing structure of the screen printing plate and the printing plate is more perfect, the screen printing plate and the printing plate are ensured to be relatively fixed in the screen printing process and can be stably matched with the printing groove, the screen printing precision is improved, the quality of a finished product is further improved, and the specific improvement is that: the printing table is fixedly arranged on the second support plate, and the printing table moves up and down along with the up-and-down movement of the second support plate, so that the purpose of up-and-down lifting is achieved by arranging the printing table to be capable of conveniently feeding and discharging; the screen printing scraper group is arranged on the upper surface of the second supporting plate and comprises a fixed base, a driving device, a first connecting plate, a second connecting plate, a first scraper and a second scraper, wherein the first scraper and the second scraper are arranged on the second connecting plate, and the driving device drives the second connecting plate to move through driving the first connecting plate so as to drive the first scraper and the second scraper on the second connecting plate to move at a uniform speed; including two telescopic splint that can stretch out and draw back from top to bottom on the second connecting plate, first scraper blade and second scraper blade all set up on telescopic splint, can be close to or keep away from the printing platform through telescopic splint's the upper and lower flexible, on the one hand can adapt to the silk screen printing plate and the printing plate of different thickness, on the other hand can adjust the pushing pressure of scraper blade.
2. The first positioning mechanism and the second positioning mechanism are arranged in the printing groove and are respectively used for fixing the printing plate and the screen printing plate, so that the accuracy in the printing process is ensured; the first positioning mechanism comprises an anti-slip rubber layer arranged on the bottom surface of the printing groove and a first positioning protrusion arranged on the peripheral side surface of the printing groove, wherein the anti-slip rubber layer is arranged on the bottom surface of the printing groove and positioned at four corners and at the center, the anti-slip rubber layer is used for increasing the friction force between the printing plate and the printing groove, so that the slipping phenomenon can not occur in the printing process, the printing precision is improved, meanwhile, the first positioning protrusion is a telescopic protrusion with a vertical section being a quarter circle, when the printing plate is placed in the printing groove, the printing plate can smoothly enter the bottom surface position of the printing groove due to inward shrinkage of the downward pressure caused by the printing plate, and when the printing plate passes through the bottom surface position of the printing groove through the first positioning protrusion, the first positioning protrusion is outwards stretched out to fix the printing plate in the vertical direction after not being stressed, and the clamping tightness is adjusted through vertical upward and downward movement.
3. The second positioning mechanism comprises guide grooves arranged at four vertical edges in the printing groove and positioning hooks arranged in the guide grooves and is used for hooking and connecting the positioning holes at four corners on the screen printing plate, and meanwhile, the screen printing plate is stretched and paved by contracting in the guide grooves after hooking, so that smoothness in the printing process is guaranteed.
4. The first scraping plate comprises a first panel and a material turning mechanism arranged at the bottom of the first panel, the second scraping plate comprises a second panel and a material pressing mechanism arranged at the bottom of the second panel, the first panel and the second panel are fixedly connected with a second connecting plate and are parallel to each other, and when the scraping plate printing operation is carried out, the first scraping plate and the second scraping plate carry out mutual cooperative operation.
5. The turnover mechanism comprises an extension part, a turnover part and a feeding hole, the extension part is contacted with resistance paste coated on the screen printing plate at the first time in the working process, then the resistance paste is continuously moved forwards to push the resistance paste, the resistance paste can pass through the turnover part along with the pushing of the extension part under the guiding action of the extension part, when the resistance paste has a paste accumulation process of the resistance paste in the process of flowing through the turnover part by the extension part, the level of the turnover part is higher than that of the extension part, the resistance paste passing through the paste accumulation can flow into a gap between the first scraping plate and the second scraping plate through the feeding hole under the guiding of the turnover part, and is accumulated at the position, the self weight of the paste accumulation process is continuously increased along with the increase of the height, so that the permeation effect of the resistance paste is ensured, and because the resistance paste is different from conventional ink, the mesh on the screen printing plate can be ensured to flow to the printing plate through the process.
6. The feeding plate and the second panel form an included angle of 30-45 degrees, the pressing plate is parallel to the horizontal plane, when the second panel is abutted against the screen printing plate, the feeding plate and the screen printing plate form a feeding channel together, and the feeding channel is obliquely arranged, so that the feeding channel is open at one end and narrow at one end, the opening of the feeding channel is close to one end of the first scraping plate, the narrow opening is far away from one end of the first scraping plate, and the structural design ensures that the resistance paste can be subjected to a pressing force due to a wide and narrow structure of the feeding channel when flowing through the feeding channel, and the space released by the pressing force is mesh on the screen printing plate, so that the penetration effect of the resistance paste can be further increased.
7. Through be provided with outside convex guide surface on being close to the side of screen printing plate on the feed plate, the purpose is in order to make the process that resistance thick liquid got into feed channel more smooth and easy simultaneously can with the structural design interaction synergism of the slope of feed plate originally, provide better downforce, advance the infiltration effect that promotes resistance thick liquid.
8. According to the invention, the vibration motor is integrally arranged in the second scraping plate, the vibration mode of the vibration motor is linear vibration in the vertical direction, the second scraping plate is taken as a main printing plate, and the vibration motor synchronously vibrates in the process of printing operation, so that thick resistance paste can be enabled to enter the printing plate through meshes on the screen printing plate in a continuous downward pressing mode.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the front structure of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a schematic top view of a printing table according to the present invention;
FIG. 6 is a schematic view of the internal structure of the printing table (with screen plate and support plate) according to the present invention;
FIG. 7 is a schematic top view of a screen plate according to the present invention;
FIG. 8 is a schematic view of the first screed and the second screed according to the present invention;
fig. 9 is a view at B-B in fig. 8.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-9, the invention provides a precise resistor screen printing mechanism, which comprises a frame 1 and a screen printing mechanism arranged on the frame 1, wherein the frame 1 is provided with four support rods 2, the number of the support rods 2 is four, each support rod 2 is kept parallel, the support rods 2 are provided with a first support plate 3 and a second support plate 4, the first support plate 3 is arranged above the second support plate 4, the first support plate 3 is fixedly arranged with the support rods 1 and is positioned at the topmost end of the support rods 2, the second support plate 4 and the support rods 2 are movably arranged, the first support plate 3 is provided with a pushing cylinder 31, the pushing cylinder 31 penetrates through the first support plate 3 and is connected with the first support plate 3 and the second support plate 4, the second support plate 4 is parallel to the first support plate 3, the second support plate 4 can be close to or far away from the first support plate 3 in a parallel state under the driving action of the pushing cylinder 31, and the screen printing mechanism comprises a screen printing plate 52, a screen printing table 53 and a screen printing plate 5;
a printing table 5; the printing table 5 is fixedly arranged on the second supporting plate 4, the printing table 5 and the second supporting plate 4 are parallel to each other, a printing groove 51 is formed in the printing table 5, the screen printing plate 52 and the printing stock 53 are both arranged in the printing groove 51, and the screen printing plate 52 is arranged above the printing stock 53;
a screen printing scraper group; the screen printing scraper set is arranged on the upper surface of the second supporting plate 4, the screen printing scraper set comprises a fixed base 41, a driving device 42, a first connecting plate 43, a second connecting plate 44, a first scraper 45 and a second scraper 46, the fixed base 41 is fixedly arranged on the upper surface of the second supporting plate 4, the driving device 42 is fixedly arranged on the fixed base 41, the first connecting plate 43 is fixedly connected with the driving device 42, the second connecting plate 44 and the first connecting plate 43 are movably connected, the first scraper 45 and the second scraper 46 are both arranged on the second connecting plate 44, the driving device 42 can adopt an electric cylinder, an air cylinder or an oil cylinder, in the embodiment, the electric cylinder is adopted, the second connecting plate 44 comprises a telescopic clamping plate 441 which can stretch up and down, and the first scraper 45 and the second scraper 46 are clamped on the telescopic clamping plate 441;
the printing groove 51 is internally provided with a first positioning mechanism 6 and a second positioning mechanism 7, the first positioning mechanism 6 is used for fixing the printing plate 53, the second positioning mechanism 7 is used for fixing the screen printing plate 52, the first positioning mechanism 6 comprises an anti-slip rubber layer 61 arranged on the bottom surface of the printing groove 51 and a first positioning protrusion 62 arranged on the peripheral side surface of the printing groove 51, the anti-slip rubber layer 61 is arranged on the bottom surface of the printing groove 51 and positioned at four corners and at a central position, the first positioning protrusion 62 is a telescopic protrusion with a vertical section being a quarter circle, the first positioning protrusion 62 can move up and down along the vertical direction on the peripheral side surface of the printing groove 51, the moving mode is embedded in a guide rail for moving, the telescopic mode is telescopic through a spring, and the moving mode and the telescopic mode are not repeated in the prior art.
The second positioning mechanism 7 includes a guide groove 71 disposed at four vertical edges in the printing groove 51 and a positioning hook 72 disposed in the guide groove 71, positioning holes 521 are disposed at four corners of the screen plate 52, the positioning hook 72 and the positioning holes 521 are hooked with each other, the positioning hook 72 can extend out of the guide groove 71 or be received into the guide groove 71 inwards, and the moving mode and the telescopic mode of the positioning hook 72 are the same as those of the first positioning protrusion 62, and are both guide rail movement and spring telescopic, which are not repeated herein.
The first scraping plate 45 comprises a first panel 451 and a turning mechanism 452 arranged at the bottom of the first panel 451, and the first panel 451 is fixedly connected with the telescopic clamping plate 441 on the second connecting plate 44; the second scraping plate 46 includes a second panel 461 and a pressing mechanism 463 disposed at the bottom of the second panel 461, the second panel 461 is fixedly connected with a telescopic clamping plate 441 on the second connecting plate 44, the first panel 451 and the second panel 461 are parallel to each other, the stirring mechanism 452 includes an extension portion 4522, a turnover portion 4521 and a feeding hole 4523, the extension portion 4522 and the first panel 451 are perpendicular to each other and extend to one end far away from the second panel 461, the turnover portion 4521 is disposed at the free end of the extension portion 4522 and turns over in the direction of the first panel 451, the vertical section of the turnover portion 4521 is arc-shaped, the feeding hole 4523 is a strip-shaped hole disposed on the first panel 451, the feeding hole 4523 penetrates through the first panel 451, and the free end of the turnover portion 4521 is directed to the feeding hole 4523; the telescopic clamping plate 441 is a mechanism capable of moving up and down along a vertical direction, and is driven by a built-in electric telescopic rod, wherein the electric telescopic rod is a well-known component, and the working principle of the electric telescopic rod is well-known, and is not repeated here.
The pressing mechanism 463 comprises a feeding plate 4631 and a pressing plate 4632, the feeding plate 4631 and the second panel 461 form an included angle of 45 degrees, the included angle can be adjusted within an adjustable range of 30 ° -45 degrees, such as 30 ° -35 degrees or 40 ° -in actual production, the pressing plate 4632 is parallel to a horizontal plane, when the second panel 461 abuts against the screen plate 52, the feeding plate 4631 and the screen plate 52 jointly form a feeding channel 464, an arc-shaped guide surface 465 protruding outwards is arranged on one side surface of the feeding plate 4631, which is close to the screen plate 52, a vibration motor 462 is integrally arranged in the second scraper 46, the vibration motor 462 is in a linear vibration mode, the second scraper 46 can vibrate along the vertical surface in a linear mode under the driving of the vibration motor 462, the vibration frequency is 8-12 times/second, the vibration range moves up and down by 0.1-0.3mm based on the initial position of the second scraper, the vibration frequency and the vibration range are both vertical operation parameters can be adjusted by a computer according to the actual operation conditions.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides an accurate resistance silk screen printing mechanism, includes the frame with set up in silk screen printing mechanism in the frame, its characterized in that: the silk screen printing machine comprises a frame, a first support plate, a second support plate, a silk screen printing mechanism, a silk screen printing scraper plate set, a printing table and a printing plate, wherein the frame is provided with a support rod, the support rod is provided with a first support plate and a second support plate, the first support plate is arranged above the second support plate, the first support plate is fixedly arranged with the support rod, the second support plate is movably arranged with the support rod, the first support plate is provided with a pushing cylinder, the pushing cylinder is connected with the first support plate and the second support plate, the second support plate is parallel to the first support plate, the second support plate can be close to or far away from the first support plate in a parallel state under the driving action of the pushing cylinder, and the silk screen printing mechanism comprises a silk screen printing plate, a silk screen printing scraper plate set, the printing table and the printing plate;
the printing table is fixedly arranged on the second supporting plate, the printing table and the second supporting plate are mutually parallel, a printing groove is formed in the printing table, the screen printing plate and the printing stock are arranged in the printing groove, the screen printing plate is arranged above the printing stock, a first positioning mechanism and a second positioning mechanism are arranged in the printing groove, the first positioning mechanism is used for fixing the printing stock, the second positioning mechanism is used for fixing the screen printing plate, the first positioning mechanism comprises an anti-slip rubber layer arranged on the bottom surface of the printing groove and a first positioning protrusion arranged on the peripheral side surface of the printing groove, the anti-slip rubber layer is arranged on the bottom surface of the printing groove and at the center, the first positioning protrusion is a telescopic protrusion with a vertical cross section of a quarter circle, the first positioning protrusion can move up and down along the vertical direction on the peripheral side surface of the printing groove, the second positioning mechanism comprises a guide groove arranged in the printing groove and a guide groove arranged at four vertical edges, the first positioning protrusion is arranged in the guide groove, the guide groove can be hooked with the four positioning hooks, or the first positioning protrusion can be hooked with the four positioning hooks and the guide groove to the positioning hooks can extend out of the guide groove;
the silk screen printing scraper blade group set up in the upper surface of second backup pad, silk screen printing scraper blade group include unable adjustment base, drive arrangement, first connecting plate, second connecting plate, first scraper blade and second scraper blade, unable adjustment base fixed set up in the upper surface of second backup pad, drive arrangement fixed set up in on the unable adjustment base, first connecting plate with drive arrangement fixed connection, the second connecting plate with but first connecting plate swing joint, the second connecting plate is including the flexible splint that can stretch out and draw back from top to bottom, first scraper blade with the second scraper blade card is put on the flexible splint.
2. The precision type resistance silk screen printing mechanism according to claim 1, wherein: the first scraping plate comprises a first panel and a material turning mechanism arranged at the bottom of the first panel, and the first panel is fixedly connected with the second connecting plate; the second scraping plate comprises a second panel and a pressing mechanism arranged at the bottom of the second panel, the second panel is fixedly connected with the second connecting plate, and the first panel and the second panel are parallel to each other.
3. The precision type resistance silk screen printing mechanism according to claim 2, wherein: the turnover mechanism comprises an extension part, a turnover part and a feeding hole, wherein the extension part is mutually perpendicular to the first panel and extends towards one end far away from the second panel, the turnover part is arranged at the tail end of the free end of the extension part and turns over towards the direction of the first panel, the vertical section of the turnover part is arc-shaped, the feeding hole is a strip-shaped hole arranged on the first panel, and the feeding hole penetrates through the first panel.
4. A precision resistor silk screen printing mechanism according to claim 3, characterised in that: the free end tip of the turnup is directed towards the feed aperture.
5. The precision type resistance silk screen printing mechanism according to claim 4, wherein: the material pressing mechanism comprises a feeding plate and a material pressing plate, wherein the feeding plate and the second panel form an included angle of 30-45 degrees, the material pressing plate is parallel to the horizontal plane, and when the second panel is propped against the screen printing plate, the feeding plate and the screen printing plate form a feeding channel together.
6. The precision resistor silk screen printing mechanism according to claim 5, wherein: an arc-shaped guide surface protruding outwards is arranged on one side surface, close to the screen plate, of the feeding plate.
7. The precision type resistance silk screen printing mechanism according to claim 6, wherein: the second scraping plate is internally integrated with a vibrating motor, the vibrating motor is in a linear vibrating mode, the second scraping plate can vibrate in a linear mode along a vertical plane under the driving of the vibrating motor, the vibrating frequency is 8-12 times/second, and the vibrating range is that the second scraping plate moves up and down by 0.1-0.3mm based on the initial position of the second scraping plate.
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| US20020166505A1 (en) * | 2000-11-02 | 2002-11-14 | Toshiya Hikami | Squeegee unit and solder-paste printing machine |
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| CN116985518B (en) | 2023-12-01 |
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