CN210026627U - Screen printing device with position control function - Google Patents
Screen printing device with position control function Download PDFInfo
- Publication number
- CN210026627U CN210026627U CN201920359238.1U CN201920359238U CN210026627U CN 210026627 U CN210026627 U CN 210026627U CN 201920359238 U CN201920359238 U CN 201920359238U CN 210026627 U CN210026627 U CN 210026627U
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- bottom plate
- groove
- screen
- screen printing
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Abstract
The utility model provides a screen printing device with a position adjusting function, which comprises a bottom plate, a rotary screen frame and a printing screen from bottom to top in sequence; the middle part of the bottom plate is provided with a raised mounting platform, and the rotary screen frame is connected with a printing screen through a fixing member; the edge or corner of the bottom plate is provided with at least one bottom plate groove, the corresponding position of the rotating screen frame is provided with a corresponding number of top plate grooves, an accommodating groove is formed between the bottom plate groove and the top plate groove, balls are arranged in the accommodating groove, and the inner wall of the bottom plate groove and the inner wall of the top plate groove are respectively contacted with the balls; one side of the bottom plate is provided with a fixing piece, one side corresponding to the rotary screen frame is provided with a connecting piece, and the fixing piece and the connecting piece can be connected in a relatively rotating mode. By adopting the technical scheme of the utility model, the precision and the working efficiency of the printing position are improved; the product quality is improved; the correction time of the printing position is effectively improved, and the working intensity is reduced.
Description
Technical Field
The utility model relates to a mechanical device especially relates to a screen printing device with position control function.
Background
COB is a chip packaging technology commonly used in the electronic field. The process comprises the following steps: firstly, covering a silicon chip mounting point on the surface of a substrate with heat-conducting epoxy resin, then directly mounting the silicon chip on the surface of the substrate, carrying out heat treatment until the silicon chip is firmly fixed on the substrate, and then directly establishing electrical connection between the silicon chip and the substrate by using a wire bonding method. Generally, the height of the epoxy resin and the central position of the epoxy resin and the silicon wafer have strict requirements. The COB products are generally manufactured by a dispensing process or a printing process. However, the existing dispensing process of the COB product has low working efficiency, long operation period and frequent error during operation. In addition, the position of the circular product cannot be ensured by the existing printing process: the corresponding position can only be found by visual inspection by adjusting the top wheel and the spring top wheel, and the position judged by each person is different, so that the printing center is deviated, and more defective products and waste reports are caused. In addition, the adjustment time is too long, and the workload is large.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model discloses a screen printing device with position control function has effectively improved positioning accuracy's reliability and stability, has reduced the running cost, has avoided the bottleneck restriction of key technology.
To this end, the technical scheme of the utility model is that:
a screen printing device with a position adjusting function sequentially comprises a bottom plate, a rotary screen frame and a printing screen from bottom to top; a raised mounting platform is arranged in the middle of the bottom plate, and a positioning jig is arranged on the mounting platform; the middle part of the rotary screen frame is provided with a hollow part corresponding to the mounting platform, and the rotary screen frame is connected with the printing silk screen through a fixing component; the edge or corner of the bottom plate is provided with at least one bottom plate groove, the corresponding position of the rotating screen frame is provided with a corresponding number of top plate grooves, an accommodating groove is formed between the bottom plate groove and the top plate groove, balls are arranged in the accommodating groove, and the inner wall of the bottom plate groove and the inner wall of the top plate groove are respectively contacted with the balls; one side of the bottom plate is provided with a fixing piece, one side corresponding to the rotary screen frame is provided with a connecting piece, and the fixing piece and the connecting piece can be connected in a relatively rotating mode, namely the fixing piece is connected with the connecting piece, but the relative position of the fixing piece and the connecting piece can rotate. Wherein, the printing silk screen is provided with printing silk screen holes which correspond to the positions to be printed of the products.
Adopt this technical scheme, through the relative rotation of adjustment mounting and connecting piece, through the roll of ball, can be relaxed rotate the fixed printing silk screen of screen frame and carry out relative adjustment with the mounting platform's of bottom plate product position, it is more accurate to treat the position of welding and the position correspondence of printing silk screen hole on the product on the mounting platform, more convenient adjustment relative position between the two, the work efficiency is improved, need not dismantle the back with whole device, the position of product among the adjustment positioning jig, it is more convenient to use.
As the utility model discloses a further improvement, be equipped with the fixed plate between bottom plate and the rotation screen frame, the middle part of fixed plate is equipped with the fretwork that corresponds with mounting platform, the fixed plate is equipped with the ring channel in the top that corresponds the bottom plate groove, form the holding tank that holds the ball between bottom plate groove, ring channel and the roof groove. The fixing plate is added, so that the positions of the bottom plate and the rotary screen frame can be adjusted more stably.
As a further improvement of the utility model, the mounting passes through the lead screw and is connected with the connecting rod, the connecting rod is connected with the connecting piece.
As a further improvement of the utility model, the connecting rod is connected with the connecting piece through the pin.
As a further improvement of the utility model, the connecting rod is shaped like Contraband. Further, the pin is connected to the upper and lower portions thereof at the side of the opening of the link.
As a further improvement, the mounting is provided with a screw hole, the connecting piece is provided with a long round hole, and the connecting rod is connected with the long round hole through a pin. And the long round holes are adopted, so that the relative positions of the printing silk screen and the product platform can be conveniently and finely adjusted.
As a further improvement of the utility model, the screw rod is connected with the handle or the motor. By adopting the technical scheme, the adjustment can be carried out by driving the handle or the motor, and the operation is more convenient.
As a further improvement of the utility model, the connecting piece is L-shaped.
As a further improvement, the positioning jig is provided with a plurality of vacuum adsorption holes, and the vacuum adsorption holes are connected with a vacuum pump.
As a further improvement, the fixing member is an electromagnet, the electromagnet is arranged on the rotary screen frame, and the frame of the printing screen is made of ferromagnetic material.
By adopting the technical scheme, when the printing screen is fixed, the electromagnet is electrified, the rotary screen frame is fixed with the printing screen through the magnetic force and the attraction of the frame of the printing screen, and the fixing is firm and the fine adjustment of the angle can be matched.
Furthermore, the electromagnets are uniformly distributed on two symmetrical side edges of the rotary screen frame.
Further, the printing silk screen is a steel mesh.
Further, the groove surface of the bottom plate groove is subjected to HRC45 degree heat treatment.
Further, the groove surface of the annular groove is subjected to HRC45 degree heat treatment.
Further, the groove surface of the top plate groove is subjected to HRC45 degree heat treatment.
Compared with the prior art, the beneficial effects of the utility model are that:
by adopting the technical scheme of the utility model, the existing dispensing process of COB products is changed into a printing process, so that the precision and the working efficiency of the printing position are improved; the problem that the position degree is deviated due to inconvenient adjustment of the circular product in the existing printing process is solved, and the product quality is improved; through improvement, the correction time of the printing position is effectively prolonged, and the working strength is reduced.
Drawings
Fig. 1 is an exploded schematic view of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention after being assembled.
Fig. 3 is a side view of an embodiment of the invention when assembled.
Fig. 4 is a schematic view of a connection structure of the assembled bottom plate, the fixed plate and the rotating plate according to an embodiment of the present invention.
Fig. 5 is an enlarged view of a portion a in fig. 4.
The reference numerals include: 1-a bottom plate, 2-a fixed plate, 3-a rotary screen frame, 4-a printing screen, 5-an installation platform, 6-a positioning jig, 7-balls and 8-a PCB; 11-fixing piece, 12-screw rod threaded hole, 13-screw rod, 14-connecting rod, 15-pin, 16-handle and 17-bottom plate groove; 21-an annular groove; 31-top plate groove, 32-connecting piece, 33-long round hole, 34-electromagnet, 41-printing silk mesh hole and 61-vacuum adsorption hole.
Detailed Description
Preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, a screen printing apparatus with a position adjusting function includes, from bottom to top, a base plate 1, a fixing plate 2, a rotary frame 3, and a printing screen 4; a raised mounting platform 5 is arranged in the middle of the bottom plate 1, and a positioning jig 6 is arranged on the mounting platform 5; the middle part of the fixed plate 2 is provided with a hollow corresponding to the mounting platform 5, the middle part of the rotary screen frame 3 is provided with a hollow corresponding to the mounting platform 5, and the rotary screen frame 3 is connected with the printing screen 4 through a fixed member; at least one bottom plate 1 groove is formed in the edge or the corner of the bottom plate 1, an annular groove 21 is formed in the fixing plate 2 above the corresponding bottom plate 1 groove, a corresponding number of top plate grooves 31 are formed in the positions corresponding to the rotating screen frame 3, an accommodating groove for accommodating the balls 7 is formed among the bottom plate 1 groove, the annular groove 21 and the top plate grooves 31, the balls 7 are arranged in the accommodating groove, and the inner wall of the bottom plate 1 groove and the inner wall of the top plate grooves 31 are respectively in contact with the balls 7; one side of the bottom plate 1 is provided with a fixing piece 11, one side corresponding to the rotary screen frame 3 is provided with a connecting piece 32, and the fixing piece 11 and the connecting piece 32 can be connected in a relatively rotating manner. The printing silk screen 4 is provided with printing silk screen 4 holes, and the printing silk screen 4 holes correspond to the positions to be printed of the PCB 8. The positioning jig 6 is provided with a plurality of vacuum adsorption holes 61, and the plurality of vacuum adsorption holes 61 are connected with a vacuum pump.
Further, the fixing piece 11 is provided with a screw hole 12 of the screw rod 13, the connecting piece 32 is provided with an oblong hole 33, the fixing piece 11 is connected with the connecting rod 14 through the screw rod 13, and the connecting rod 14 is connected with the oblong hole 33 through the pin 15. The screw rod 13 is connected with a handle 16 or a motor.
Further, the connecting rod 14 is shaped like an "Contraband". The pin 15 is connected to the upper and lower portions of the link 14 at the side of the opening thereof. The oblong holes 33 are used to facilitate fine adjustment of the relative position of the printing screen 4 and the product platform.
Further, the connecting member 32 is L-shaped.
Further, the positioning jig 6 is provided with a plurality of vacuum adsorption holes 61, and the plurality of vacuum adsorption holes 61 are connected with a vacuum pump.
Further, the fixing component is an electromagnet 34, the electromagnet 34 is arranged on the rotary screen frame 3, and the frame of the printing screen 4 is made of ferromagnetic material. Furthermore, the electromagnets 34 are uniformly distributed on two symmetrical sides of the rotary screen frame 3.
Further, the printing screen 4 is a steel mesh.
By adopting the technical scheme, when the printing machine is used, the bottom plate 1 is sequentially provided with the platform 5, the fixed plate 2, the ball 7, the rotary screen frame 3 and the printing screen 4, the connecting rod 14 is arranged at the long circular hole 33 of the rotary screen frame 3 and penetrates through the pin 15, the lead screw 13 is arranged at the threaded hole 12 of the lead screw 13 of the bottom plate 1, and one end of the lead screw 13 is connected with the connecting rod 14; when printing is carried out, the PCB 8 is placed into the positioning jig 6, the vacuum pump is started to stably absorb and fix the PCB 8, the printing silk screen 4 is placed into the positioning jig, the electromagnet 34 is started to stably absorb the printing silk screen 4, and the angle of the rotating screen frame 3 is finely adjusted by the adjusting screw rod 13, so that the hole position of the printing silk screen 4 is superposed with the central position of the PCB 8, and accurate printing can be realized; the position is more convenient to adjust, the correction time of the printing position is effectively prolonged, and the working intensity is reduced; the operation is simple, and the working efficiency is improved.
The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the shape and structure of the present invention are within the protection scope of the present invention.
Claims (10)
1. A screen printing device with a position adjusting function is characterized in that: which sequentially comprises a bottom plate, a rotary screen frame and a printing screen from bottom to top;
a raised mounting platform is arranged in the middle of the bottom plate, and a positioning jig is arranged on the mounting platform;
the middle part of the rotary screen frame is provided with a hollow part corresponding to the mounting platform, and the rotary screen frame is connected with the printing silk screen through a fixing component;
the edge or corner of the bottom plate is provided with at least one bottom plate groove, the corresponding position of the rotating screen frame is provided with a corresponding number of top plate grooves, an accommodating groove is formed between the bottom plate groove and the top plate groove, balls are arranged in the accommodating groove, and the inner wall of the bottom plate groove and the inner wall of the top plate groove are respectively contacted with the balls;
one side of the bottom plate is provided with a fixing piece, one side corresponding to the rotary screen frame is provided with a connecting piece, and the fixing piece and the connecting piece can be connected in a relatively rotating mode.
2. The screen printing apparatus with a position adjusting function according to claim 1, wherein: a fixing plate is arranged between the bottom plate and the rotary screen frame, and a hollow part corresponding to the mounting platform is arranged in the middle of the fixing plate; the fixed plate is provided with an annular groove above the corresponding bottom plate groove, and an accommodating groove for accommodating the ball is formed among the bottom plate groove, the annular groove and the top plate groove.
3. The screen printing apparatus with a position adjusting function according to claim 2, wherein: the fixing piece is connected with the connecting rod through the screw rod, and the connecting rod is connected with the connecting piece.
4. The screen printing apparatus with a position adjusting function according to claim 3, wherein: the connecting rod is connected with the connecting piece through a pin.
5. The screen printing apparatus with a position adjusting function according to claim 4, wherein: the connecting rod is shaped like Contraband.
6. The screen printing apparatus with a position adjusting function according to claim 5, wherein: the fixing piece is provided with a screw rod threaded hole, the connecting piece is provided with a long round hole, and the connecting rod is connected with the long round hole through a pin.
7. The screen printing apparatus with a position adjusting function according to claim 3, wherein: the screw rod is connected with a handle or a motor.
8. The screen printing apparatus with a position adjustment function according to any one of claims 1 to 6, wherein: the connecting piece is L-shaped.
9. The screen printing apparatus with a position adjustment function according to any one of claims 1 to 6, wherein: the positioning jig is provided with a plurality of vacuum adsorption holes, and the plurality of vacuum adsorption holes are connected with a vacuum pump.
10. The screen printing apparatus with a position adjustment function according to any one of claims 1 to 6, wherein: the fixing component is an electromagnet, the electromagnet is arranged on the rotary screen frame, and the frame of the printing screen is made of ferromagnetic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359238.1U CN210026627U (en) | 2019-03-21 | 2019-03-21 | Screen printing device with position control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359238.1U CN210026627U (en) | 2019-03-21 | 2019-03-21 | Screen printing device with position control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210026627U true CN210026627U (en) | 2020-02-07 |
Family
ID=69355704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920359238.1U Expired - Fee Related CN210026627U (en) | 2019-03-21 | 2019-03-21 | Screen printing device with position control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210026627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113473713A (en) * | 2021-06-07 | 2021-10-01 | 福州瑞华印制线路板有限公司 | Be used for three quick-witted wiring silk screen printing machine consent location structures |
| CN115008878A (en) * | 2022-06-17 | 2022-09-06 | 西安微电子技术研究所 | Tin paste printing device and method for BTC packaging device for repair |
-
2019
- 2019-03-21 CN CN201920359238.1U patent/CN210026627U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113473713A (en) * | 2021-06-07 | 2021-10-01 | 福州瑞华印制线路板有限公司 | Be used for three quick-witted wiring silk screen printing machine consent location structures |
| CN113473713B (en) * | 2021-06-07 | 2022-08-30 | 福州瑞华印制线路板有限公司 | Be used for three quick-witted wiring silk screen printing machine consent location structures |
| CN115008878A (en) * | 2022-06-17 | 2022-09-06 | 西安微电子技术研究所 | Tin paste printing device and method for BTC packaging device for repair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20210321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |