CN210415850U

CN210415850U - Printing transfer device for silk-screen layer of printed circuit board

Info

Publication number: CN210415850U
Application number: CN201920256606.XU
Authority: CN
Inventors: 王建刚
Original assignee: Shijiazhuang Aoer Technology Co Ltd
Current assignee: Shijiazhuang Aoer Technology Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2020-04-28
Anticipated expiration: 2029-02-28

Abstract

The utility model discloses a printing transfer device for printed circuit board silk screen printing layer, including platen, ring gear and tight head of clamp, the platen left side is equipped with primary shaft bearing, and the interlude is equipped with the driving shaft in the primary shaft bearing, and the cover is equipped with first gear and second gear on the driving shaft, and the right side of platen is equipped with the secondary shaft bearing, and the interlude is equipped with the driven shaft in the secondary shaft bearing, and the cover is equipped with third gear and fourth gear on the driven shaft, and the platen top is equipped with the ring gear that sets up around two, and the inner circle of ring gear is equipped with the bracing piece, and the cover is equipped with the tight head of clamp of two parallel arrangement on the bracing piece, and the. The utility model discloses set up by motor control pivoted ring gear, can print the reverse side of circuit board, set up first splint and second splint, press from both sides tight process simply, set up the support frame and can adjust the stopper make the utility model discloses can cooperate not unidimensional circuit board.

Description

Printing transfer device for silk-screen layer of printed circuit board

Technical Field

The utility model relates to a circuit board printing field specifically is a printing transfer device for printed circuit board silk screen printing layer.

Background

In the production process of the printed circuit board, one of the processes is to perform silk-screen printing on the circuit board in order to print the mark symbols of each electronic device on the circuit board. The existing screen printing machines can be divided into two categories, one is a full-automatic screen printing machine, the other is a semi-automatic screen printing machine, and the full-automatic screen printing machine is adopted by some large-scale manufacturers due to excellent performance, but the full-automatic screen printing machine is expensive in manufacturing cost, complex in structure and high in production and maintenance cost, so that most of small and medium-scale manufacturers adopt the semi-automatic screen printing machine. Although the manufacturing cost and the maintenance cost of the semi-automatic screen printing machine are much lower than those of the full-automatic screen printing machine, the semi-automatic screen printing machine in the existing market still has a plurality of problems to be solved.

Because partial circuit board needs two-sided printing, current semi-automatic silk screen printing machine needs the workman manually to turn over the circuit board when carrying out two-sided printing, and the efficiency of manual turn-over is low, because manual operation has great error moreover, needs once more to fix a position the circuit board after the turn-over, and it needs to spend very long time to fix a position the operation to the circuit board to print a circuit board at every turn. The positioning mode of the existing screen printer is complex, the practicability is not high, and when the size of the circuit board changes, the adjustment of the positioning device is very complicated, so that the printing efficiency of the whole batch of circuit boards is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a printing transfer device for printed circuit board silk screen printing layer to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a printing transfer device for a screen printing layer of a printed circuit board comprises a bedplate, a top frame, a driving shaft, a driven shaft, a gear ring, a clamping head, a support frame, a limiting block, a pneumatic telescopic rod, a scraper and a slide rail, wherein supporting legs are arranged on the lower surface of the bedplate, four supporting columns are arranged on the upper surface of the bedplate, and the top frame is arranged at the top ends of the supporting columns; a first bearing seat is arranged on the left side of the platen, a driving shaft is inserted in the first bearing seat, the rear end of the driving shaft is connected with a motor, a first gear and a second gear are sleeved on the driving shaft, the first gear is arranged on the front side of the second gear, and the first gear and the second gear are both arranged between the two first bearing seats; a second bearing seat is arranged on the right side of the bedplate, a driven shaft is inserted into the second bearing seat, a third gear and a fourth gear are sleeved on the driven shaft, the third gear is arranged on the front side of the fourth gear, and the third gear and the fourth gear are both arranged between the two second bearing seats; two gear rings which are arranged in front and back are arranged above the bedplate, the gear ring at the front side is erected between the first gear and the third gear, and the gear ring at the rear side is erected between the second gear and the fourth gear; the inner ring of the gear ring is provided with a support rod, two clamping heads which are arranged in parallel are sleeved on the support rod, the inner ring of the gear ring positioned on the front side is provided with a storage battery, the storage battery is fixed in the gear ring, and the storage battery is provided with a button; a first air cylinder is arranged below the bedplate, a first telescopic rod is inserted into the first air cylinder, a first air pump is arranged on the right side of the first air cylinder and connected with the first air cylinder through a pipeline, a first pedal is arranged on the left side of the first air cylinder, and a second pedal is arranged on the right side of the first air cylinder; the top end of the first telescopic rod is provided with four support frames, a reinforcing plate is arranged below each support frame, a sliding groove is formed in each support frame, the upper surface of each support frame is provided with a limiting block, and a second bolt and a second nut are inserted into each limiting block; the top frame is provided with a sliding rail, a pneumatic telescopic rod and a sliding block are arranged in the sliding rail, the sliding block is fixedly connected with the left end of the pneumatic telescopic rod, a second air cylinder is hung below the sliding block, a second telescopic rod is inserted into the second air cylinder, and the bottom end of the second telescopic rod is connected with a scraper; and a second air pump is arranged on the upper surface of the rear side of the bedplate and connected with the pneumatic telescopic rod through a pipeline, and the second air pump is connected with a second air cylinder through a pipeline.

As a further aspect of the present invention: the bedplate is a rectangular plate, a rectangular through hole is formed in the bedplate, and the top frame is a rectangular frame.

As a further aspect of the present invention: the bearing is arranged in the first bearing seat, the second bearing seat is arranged in the second bearing seat, and the bearings are arranged in the second bearing seat.

As a further aspect of the present invention: the clamping head comprises a fixing ring, a first bolt, a first nut, a connecting frame, a first clamping plate, a second clamping plate, a sleeve, a moving rod and a spring, the fixing ring is sleeved on the supporting rod, and the first bolt and the first nut are arranged at the bottom of the fixing ring; the left side of the fixing ring is connected with a connecting frame, the left side of the connecting frame is connected with a second clamping plate, the right end of the second clamping plate is provided with a sleeve, a moving rod is arranged in the sleeve in an alternating mode, a spring is arranged in a gap between the moving rod and the sleeve, and the top end of the moving rod is provided with a first clamping plate.

As a further aspect of the present invention: the utility model discloses a storage battery, including first splint, second splint, electro-magnet, first splint, second splint, the electro-magnet has been inlayed in the first splint, and the electro-magnet passes through the wire with the battery to be connected, and the lower surface of first splint is equipped with first cushion, and it has armature to inlay in the second splint, and the lower surface of second splint is equipped with the second cushion, and first cushion and second cushion are soft rubber system.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model is provided with the gear ring which is controlled by the motor to rotate, so that the turning operation of some circuit boards which need double-sided printing becomes very simple, and the original position of the circuit board can not be changed in the turning process, so that the effect of reverse side printing is better; the utility model is provided with the first clamping plate and the second clamping plate, and controls the clamping and loosening of the first clamping plate and the second clamping plate to the circuit board by controlling the electrification of the electromagnet, the control process is simple and the clamping is stable; the utility model discloses the stopper that has set up the support frame and can adjust the spacing to and can adjust two ring gears of spacing distance, make the utility model discloses can cooperate not unidimensional circuit board, after setting up the position once, can accomplish the precision to the quick location of the circuit board of same batch, the printing of improvement.

Drawings

Fig. 1 is a front view of a print transfer apparatus for screen printing layers of a printed circuit board.

Fig. 2 is a left side view of a print transfer apparatus for screen printing layers of a printed circuit board.

Fig. 3 is a top view of a platen in a print transfer apparatus for screen printing layers of a printed circuit board.

Fig. 4 is a plan view of a top frame in a printing transfer apparatus for screen printing layers of a printed circuit board.

Fig. 5 is a partially enlarged view of a portion a of a print transfer apparatus for screen printing layers of a printed circuit board.

Fig. 6 is a partial enlarged view of a portion at B in a print transfer apparatus for screen printing layers of a printed circuit board.

Fig. 7 is a partial enlarged view of a printing transfer device for screen printing layers of a printed circuit board at C.

In the figure: 1. a platen; 2. supporting legs; 3. a support pillar; 4. a top frame; 5. a first bearing housing; 6. a drive shaft; 7. a first gear; 8. a second gear; 9. a motor; 10. a second bearing housing; 11. a driven shaft; 12. a third gear; 13. a fourth gear; 14. a ring gear; 15. a support bar; 16. a clamping head; 161. a fixing ring; 162. a first bolt; 163. a first nut; 164. a connecting frame; 165. a first splint; 1651. an electromagnet; 1652. a first cushion; 166. a second splint; 1661. an armature; 1662. a second cushion; 167. a sleeve; 168. a travel bar; 169. a spring; 17. a storage battery; 18. a button; 19. a first cylinder; 20. a first telescopic rod; 201. a reinforcing plate; 21. a first air pump; 22. a first pedal; 23. a second pedal; 24. a support frame; 241. a chute; 25. a limiting block; 251. a second bolt; 252. a second nut; 26. a pneumatic telescopic rod; 27. a second air pump; 28. a second cylinder; 281. a slider; 29. a second telescopic rod; 30. a squeegee; 31. a slide rail.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-7, a printing transfer device for a screen printing layer of a printed circuit board comprises a bedplate 1, a top frame 4, a driving shaft 6, a driven shaft 11, a gear ring 14, a clamping head 16, a support frame 24, a limiting block 25, a pneumatic telescopic rod 26, a scraper 30 and a slide rail 31, wherein the lower surface of the bedplate 1 is provided with six support legs 2, the six support legs 2 are divided into two rows, the upper surface of the bedplate 1 is provided with four support columns 3, the top ends of the support columns 3 are provided with the top frame 4, the bedplate 1 is a rectangular plate, the bedplate 1 is provided with a rectangular through hole, and the top frame 4 is a rectangular frame; the left side of the bedplate 1 is provided with two first bearing seats 5, the two first bearing seats 5 are oppositely arranged in the front and back direction, bearings are arranged in the first bearing seats 5, a driving shaft 6 is inserted in the first bearing seats 5, the driving shaft 6 is supported by the first bearing seats 5 and can rotate in the first bearing seats 5, the rear end of the driving shaft 6 is connected with a motor 9, the motor 9 provides torque for the driving shaft 6, a first gear 7 and a second gear 8 are sleeved on the driving shaft 6, the first gear 7 is arranged on the front side of the second gear 8, the first gear 7 and the second gear 8 are both arranged between the two first bearing seats 5, and the first gear 7 and the second gear 8 can both rotate along with the driving shaft 6; the right side of platen 1 is equipped with second bearing seat 10, second bearing seat 10 is total two and the relative setting in front and back, be equipped with the bearing in the second bearing seat 10, it is equipped with driven shaft 11 to alternate in second bearing seat 10, driven shaft 11 is supported by second bearing seat 10 and can be at the internal rotation of second bearing seat 10, the cover is equipped with third gear 12 and fourth gear 13 on the driven shaft 11, third gear 12 sets up in fourth gear 13 front side, and third gear 12 and fourth gear 13 all set up between two second bearing seats 10, and third gear 12 and fourth gear 13 all can rotate along with driven shaft 11.

Two gear rings 14 arranged in front and back are arranged above the bedplate 1, the gear ring 14 on the front side is erected between the first gear 7 and the third gear 12, the gear ring 14 on the rear side is erected between the second gear 8 and the fourth gear 13, the widths of the first gear 7 and the third gear 12 are larger than those of the second gear 8 and the fourth gear 13, the gear ring 14 on the front side can move on the first gear 7 and the third gear 12 to adjust the distance between the two gear rings 14, the driving shaft 6 can drive the first gear 7 and the second gear 8 to rotate so as to drive the two gear rings 14 to rotate, and the third gear 12 and the fourth gear 13 are used for matching with the first gear 7 and the second gear 8 to support the gear ring 14; the inner circle of ring gear 14 is equipped with bracing piece 15, bracing piece 15 is the round bar that has the scale, bracing piece 15 and ring gear 14's diameter coincidence, the cover is equipped with two parallel arrangement's tight head 16 of clamp on the bracing piece 15, it sets up in opposite directions to lie in four tight head 16 of clamp on two spinal branch vaulting poles 15 of front and back, it is used for pressing from both sides the tight circuit board of treating the printing to press from both sides tight head 16, the ring gear 14 inner circle that lies in the front side is equipped with battery 17, battery 17 is fixed in ring gear 14, be equipped with button 18 on the battery 17, battery.

A first air cylinder 19 is arranged below the bedplate 1, a first telescopic rod 20 is inserted into the first air cylinder 19, a first air pump 21 is arranged on the right side of the first air cylinder 19, the first air pump 21 is connected with the first air cylinder 19 through a pipeline, the first air pump 21 is used for ventilating the first air cylinder 19 to enable the first telescopic rod 20 to move upwards, a first pedal 22 is arranged on the left side of the first air cylinder 19, a second pedal 23 is arranged on the right side of the first air cylinder 19, the first air pump 21 can be used for ventilating the first air cylinder 19 by stepping on the first pedal 22, the first air cylinder 19 can be used for exhausting outwards by stepping on the second pedal 23, and therefore the up-down movement of the first telescopic rod 20 is controlled through the first pedal 22 and the second pedal 23; the top of first telescopic link 20 is equipped with four support frames 24, and four support frames 24 are the range of "ten" font, and every support frame 24 below all is equipped with reinforcing plate 201, and reinforcing plate 201 makes the more stable top of being fixed in first telescopic link 20 of support frame 24, has seted up spout 241 on the support frame 24, and the upper surface of support frame 24 is equipped with stopper 25, alternates on the stopper 25 and is equipped with second bolt 251 and second nut 252, and second bolt nut 251 and second nut 252 pass spout 241 and press from both sides support frame 24 and stopper 25 tight fixedly.

The top frame 4 is provided with a slide rail 31, a pneumatic telescopic rod 26 and a slide block 281 are arranged in the slide rail 31, the slide block 281 is fixedly connected with the left end of the pneumatic telescopic rod 26, a second air cylinder 28 is hung below the slide block 281, a second telescopic rod 29 is inserted into the second air cylinder 28, and the bottom end of the second telescopic rod 29 is connected with a scraper 30; the upper surface of platen 1 rear side is equipped with second air pump 27 on, second air pump 27 passes through the pipeline and is connected with pneumatic telescopic rod 26, and the flexible of pneumatic telescopic rod 26 can be controlled to second air pump 27, and second air pump 27 passes through the pipeline and is connected with second cylinder 28, and the flexible of second telescopic rod 29 can be controlled to second air pump 27 to this comes the left and right sides position and the upper and lower position of adjustment scraper blade 30, makes scraper blade 30 can press on the circuit board and remove about and carry out the silk screen printing to the circuit board.

As shown in fig. 7, the clamping head 16 includes a fixing ring 161, a first bolt 162, a first nut 163, a connecting frame 164, a first clamping plate 165, a second clamping plate 166, a sleeve 167, a moving rod 168 and a spring 169, the fixing ring 161 is sleeved on the supporting rod 15, the first bolt 162 and the first nut 163 are arranged at the bottom of the fixing ring 161, and the fixing ring 161 is clamped and fixed on the supporting rod 15 by tightening the first bolt 162 and the first nut 163; the left side of the fixing ring 161 is connected with a connecting frame 164, the left side of the connecting frame 164 is connected with a second clamping plate 166, the right end of the second clamping plate 166 is provided with a sleeve 167, a moving rod 168 penetrates into the sleeve 167, a spring 169 is arranged in a gap between the moving rod 168 and the sleeve 167, and the top end of the moving rod 168 is provided with a first clamping plate 165; an electromagnet 1651 is embedded in the first clamping plate 165, the electromagnet 1651 is connected with the storage battery 17 through a conducting wire, a first soft cushion 1652 is arranged on the lower surface of the first clamping plate 165, an armature 1661 is embedded in the second clamping plate 166, a second soft cushion 1662 is arranged on the lower surface of the second clamping plate 166, and in order to prevent the circuit board from being scratched, the first soft cushion 1652 and the second soft cushion 1662 are both made of soft rubber; the button 18 is actuated to energize the battery 17 to the electromagnet 1651, and the electromagnet 1651 becomes magnetically attracted to the armature 1661, thereby causing the first clamp plate 165 to move downwardly against the force of the spring 169 into engagement with the second clamp plate 166, and when the electromagnet 1651 is de-energized by the button 18, the first clamp plate 165 moves upwardly away from the second clamp plate 166 due to the force of the spring 169.

When the utility model is used, before the circuit board is silk-screened, a user firstly adjusts the distance between the two gear rings 14 according to the size of the circuit board to be printed, then adjusts the position of the limiting block 25 on the support frame 24, screws the second bolt 251 and the second nut 252 after adjustment to fix the position of the limiting block 25, and then places the circuit board on the support frame 24; when printing is carried out, firstly, the first pedal 22 is stepped to enable the first air pump 21 to ventilate the first air cylinder 19, the first telescopic rod 20 is lifted to be at the same height as the clamping head 16, the button 18 is pressed to enable the first clamping plate 165 and the second clamping plate 166 to clamp the circuit board, then, the second pedal 23 is stepped to enable the first air cylinder 19 to exhaust outwards, and the first telescopic rod 20 naturally falls down by gravity; the second air pump 27 controls the second air cylinder 28 and the pneumatic telescopic rod 26, the second telescopic rod 29 moves downwards until the scraper 30 contacts the circuit board, the pneumatic telescopic rod 26 is controlled to push the sliding block 281 to enable the scraper 30 to move left and right on the circuit board, so that printing is completed, and after one-side printing is completed, the motor 9 is started to enable the driving shaft 6 to drive the gear ring 14 to rotate for half a circle, so that the circuit board is turned over; after the double-sided printing is finished, the first clamping plate 165 and the second clamping plate 166 loosen the circuit board through the button 18, the circuit board is directly taken down, the second circuit board is printed continuously according to the steps, and if the size of the circuit board is not changed, the position of the limiting block 25 does not need to be adjusted.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A printing transfer device for a screen printing layer of a printed circuit board comprises a bedplate (1), a top frame (4), a driving shaft (6), a driven shaft (11), a gear ring (14), a clamping head (16), a support frame (24), a limiting block (25), a pneumatic telescopic rod (26), a scraper (30) and a slide rail (31), and is characterized in that a support leg (2) is arranged on the lower surface of the bedplate (1), four support columns (3) are arranged on the upper surface of the bedplate (1), and the top frame (4) is arranged at the top ends of the support columns (3); the bedplate is characterized in that a first bearing seat (5) is arranged on the left side of the bedplate (1), a driving shaft (6) is inserted into the first bearing seat (5), the rear end of the driving shaft (6) is connected with a motor (9), a first gear (7) and a second gear (8) are sleeved on the driving shaft (6), the first gear (7) is arranged on the front side of the second gear (8), and the first gear (7) and the second gear (8) are arranged between the two first bearing seats (5); a second bearing seat (10) is arranged on the right side of the bedplate (1), a driven shaft (11) is inserted into the second bearing seat (10), a third gear (12) and a fourth gear (13) are sleeved on the driven shaft (11), the third gear (12) is arranged on the front side of the fourth gear (13), and the third gear (12) and the fourth gear (13) are arranged between the two second bearing seats (10); two gear rings (14) arranged in front and back are arranged above the bedplate (1), the gear ring (14) at the front side is erected between the first gear (7) and the third gear (12), and the gear ring (14) at the rear side is erected between the second gear (8) and the fourth gear (13); a support rod (15) is arranged on the inner ring of the gear ring (14), two clamping heads (16) which are arranged in parallel are sleeved on the support rod (15), a storage battery (17) is arranged on the inner ring of the gear ring (14) positioned on the front side, the storage battery (17) is fixed in the gear ring (14), and a button (18) is arranged on the storage battery (17); a first air cylinder (19) is arranged below the bedplate (1), a first telescopic rod (20) is inserted into the first air cylinder (19), a first air pump (21) is arranged on the right side of the first air cylinder (19), the first air pump (21) is connected with the first air cylinder (19) through a pipeline, a first pedal (22) is arranged on the left side of the first air cylinder (19), and a second pedal (23) is arranged on the right side of the first air cylinder (19); the top end of the first telescopic rod (20) is provided with four support frames (24), a reinforcing plate (201) is arranged below each support frame (24), a sliding groove (241) is formed in each support frame (24), a limiting block (25) is arranged on the upper surface of each support frame (24), and a second bolt (251) and a second nut (252) are inserted into each limiting block (25); a sliding rail (31) is arranged on the top frame (4), a pneumatic telescopic rod (26) and a sliding block (281) are arranged in the sliding rail (31), the sliding block (281) is fixedly connected with the left end of the pneumatic telescopic rod (26), a second air cylinder (28) is hung below the sliding block (281), a second telescopic rod (29) is inserted into the second air cylinder (28), and the bottom end of the second telescopic rod (29) is connected with a scraper (30); and a second air pump (27) is arranged on the upper surface of the rear side of the bedplate (1), the second air pump (27) is connected with a pneumatic telescopic rod (26) through a pipeline, and the second air pump (27) is connected with a second air cylinder (28) through a pipeline.

2. A print transfer apparatus for screen printing layers of printed circuit boards according to claim 1, wherein the table plate (1) is a rectangular plate and the table plate (1) is provided with rectangular through holes, and the top frame (4) is a rectangular frame.

3. The printing transfer device for screen printing layers of printed circuit boards according to claim 1, wherein the first bearing seats (5) are provided with two bearings and are arranged in a front-to-back opposite manner, the first bearing seats (5) are provided with bearings, the second bearing seats (10) are provided with two bearings and are arranged in a front-to-back opposite manner, and the second bearing seats (10) are provided with bearings.

4. The printing transfer device for the silk-screen layer of the printed circuit board as claimed in claim 1, wherein the clamping head (16) comprises a fixing ring (161), a first bolt (162), a first nut (163), a connecting frame (164), a first clamping plate (165), a second clamping plate (166), a sleeve (167), a moving rod (168) and a spring (169), the fixing ring (161) is sleeved on the supporting rod (15), and the first bolt (162) and the first nut (163) are arranged at the bottom of the fixing ring (161); the left side of fixed ring (161) is connected with link (164), and the left side of link (164) is connected with second splint (166), and the right-hand member of second splint (166) is equipped with sleeve (167), and the interlude is equipped with carriage release lever (168) in sleeve (167), is equipped with spring (169) in the space between carriage release lever (168) and sleeve (167), and the top of carriage release lever (168) is equipped with first splint (165).

5. The printing transfer device for the silk screen printing layer of the printed circuit board as claimed in claim 4, wherein the first clamping plate (165) is embedded with an electromagnet (1651), the electromagnet (1651) is connected with the storage battery (17) through a conducting wire, the lower surface of the first clamping plate (165) is provided with a first soft pad (1652), the second clamping plate (166) is embedded with an armature (1661), the lower surface of the second clamping plate (166) is provided with a second soft pad (1662), and the first soft pad (1652) and the second soft pad (1662) are both made of soft rubber.