CN216359843U - Screen printing machine - Google Patents

Abstract

The utility model belongs to the technical field of circuit board production facility technique and specifically relates to a silk screen printing machine, it includes the organism, the upper surface of organism sets up to table surface, table surface supplies to place circuit board and silk screen level and places, the circuit board is located between table surface and the silk screen, it is provided with the pole of scraping to slide on the organism, the lower surface of scraping the pole is laminated with the upper surface of silk screen, be provided with the drive assembly who is used for scraping pole horizontal motion and vertical motion on the organism, this application has the advantage that improves the printing quality of circuit board.

Description

a screen printing machine

technical field

The present application relates to the technical field of circuit board production equipment, in particular to a screen printing machine.

Background technique

PCB (Printed Circuit Board), the Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, a support body for electronic components, and a carrier for electrical interconnection of electronic components. Because it is made using electronic printing, it is called a "printed" circuit board.

In the related art, there are many production processes for circuit boards. After the circuit board is etched, some product information related to the circuit board, such as manufacturer, production date, etc., needs to be printed on the surface of the circuit board to distinguish it. Large quantities of circuit boards for various customers.

In view of the above-mentioned related technologies, the inventor believes that there are the following problems: in the traditional circuit board production process, the corresponding circuit board printing process is usually held by the operator's hand. Place the circuit board on the work surface, and then press the screen on the upper surface of the circuit board for printing. Due to the influence of human factors, such as insufficient pressure on the screen by the operator, the printed circuit board in this way There may be quality issues.

Utility model content

In order to improve the printing quality of circuit boards, the present application provides a screen printing machine.

A kind of screen printing machine provided by this application adopts the following technical scheme:

A screen printing machine includes a body, the upper surface of the body is set as a work surface, the work surface is used for placing a circuit board and a wire mesh to be placed horizontally, the circuit board is located between the work surface and the wire mesh, and the body slides on A scraper rod is provided, and the lower surface of the scraper rod is fitted with the upper surface of the wire mesh, and the body is provided with a drive assembly for horizontal and vertical movement of the scraper rod.

By adopting the above technical solution, when printing the circuit board, first place the circuit board on the work surface, then place the screen coated with printing material on the upper surface of the circuit board, and drive the scraper rod to move vertically downward through the driving component, scraping The rod presses the screen, and drives the scraper rod to reciprocate horizontally again through the drive assembly, so that the scraper rod imprints the printing material on the screen to the surface of the circuit board. The drive assembly drives the scraper rod to move vertically upwards, the operator takes out the wire mesh and the circuit board in turn, and the wire mesh can be subjected to sufficient pressure through the embossing of the scraper rod, and the back and forth movement of the scraper rod can make the circuit board Each area of the screen can be uniformly applied by the printing material on the screen. Therefore, compared with the related art, the screen printing machine in the present application improves the printing quality of the circuit board.

Preferably, the drive assembly includes a lateral drive unit and a vertical drive unit, the lateral drive unit includes a pneumatic slide rail and a movable seat, the pneumatic slide rail is mounted on the body, and the pneumatic slide rail is arranged horizontally , the pneumatic slide rail is located above the work surface, the movable seat is slidably arranged on the pneumatic slide rail along the length direction of the pneumatic slide rail, and the vertical drive unit is arranged on the movable seat On the upper side, the scraper rod is mounted on the vertical drive unit.

By adopting the above technical solution, the pneumatic slide rail is activated, and the pneumatic slide rail drives the movable seat to perform lateral sliding movement. At the same time, since the vertical drive unit is arranged on the movable seat, and the scraper rod is installed on the vertical drive on the unit, and then drive the scraper rod to scrape the screen in the transverse direction.

Preferably, the vertical driving unit is configured as a driving cylinder, the driving cylinder is mounted on the movable seat, the piston rod of the driving cylinder is vertically downward, and the end of the piston rod of the driving cylinder is connected to the The upper surface of the scraper rod is vertically fixed.

By adopting the above technical solution, the driving cylinder is activated, and the piston rod of the driving cylinder moves in the vertical direction. Since the end of the piston rod of the driving cylinder is vertically fixed to the upper surface of the scraper rod, the piston rod of the driving cylinder can further drive the scraper rod to press wire mesh.

Preferably, the number of the scraper rods is set to two, and the two scraper rods are arranged at intervals along the movement direction of the pneumatic slide rail.

By adopting the above technical solution, when the screen printing machine is working, the two scraping rods move horizontally in the same direction. Since the scraping rods do a horizontal reciprocating motion, when the scraping rods move halfway, one of the scraping rods will remove the part of the screen on the screen. The printing material is brought out to one side of the printing area. When the scraper moves back to complete the whole movement, another scraper brings the printing material brought out by the previous scraper back to the printing area, thus achieving The effect of returning materials indirectly improves the utilization rate of printing materials.

Preferably, the body is provided with a fixing component, the fixing component includes a fixing rod and a fixing screw, the fixing rod is fixed on the work surface, and a side wall of the fixing rod is provided with an accommodating groove, the The accommodating groove runs through both ends of the fixing rod, the wire mesh is inserted and matched with the accommodating groove, the thread of the fixing screw penetrates the upper surface of the fixing rod, and one end of the fixing screw is connected with the wire The side wall of the mesh is abutted and matched, and the other side wall opposite to the wire mesh is abutted and matched with the other side wall of the accommodating groove.

By adopting the above technical solution, the operator places the circuit board on the work surface, and then places the wire mesh on the upper surface of the circuit board. The personnel twist the fixing screw so that one end of the fixing screw is in contact with the side wall of the wire mesh, and the other side wall opposite to the wire mesh is abutted and matched with the other side wall of the accommodating slot, thereby increasing the distance between the wire mesh and the wire mesh. The friction force between the groove walls of the accommodating groove realizes the installation and fixation of the wire mesh.

Preferably, a plurality of the fixing screw rods are provided, and the plurality of the fixing screw rods are arranged at intervals along the length direction of the fixing rod.

By adopting the above technical solution, a plurality of fixing screws are arranged at intervals along the length direction of the fixing rod, so that the side of the wire mesh is stressed at multiple points, and the force is uniform, which indirectly improves the installation stability of the wire mesh.

Preferably, one end of the fixing screw is provided with an anti-separation block, and the upper surface of the anti-separation block is in abutment with the groove wall of the accommodating groove.

By adopting the above technical solution, when the operator over-twisted the fixing screw, after the fixing screw moves upward to a certain extent, the upper surface of the anti-detachment block abuts and cooperates with the groove wall of the accommodating groove, thereby reducing the separation of the fixing screw and the fixing rod. The situation occurs, which indirectly improves the stability of the fixing mechanism.

Preferably, the other end of the fixing screw is fixed with a holding block, and the edge of the holding block is arranged in an arc shape.

By adopting the above technical solution, the operator can twist the fixing screw by holding the holding block with the hand, which is more convenient and comfortable.

To sum up, the present application includes at least one of the following beneficial technical effects:

1. The screen printing machine in this application has the advantage of improving the printing quality of the circuit board;

2. The screen printing machine in this application has the advantages of being easy to operate and comfortable to use;

3. The screen printing machine in this application has the advantage of stable operation.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application.

FIG. 2 is a schematic structural diagram of a fixing screw in an embodiment of the present application.

Description of reference numerals: 1. Body; 11. Working table; 12. Mounting seat; 2. Wire mesh; 21. Frame body; 22. Net body; 3. Fixing component; 31. Fixing rod; 32, fixed screw; 321, anti-separation block; 322, holding block; 4, scraper; 5, drive assembly; 51, horizontal drive unit; 511, pneumatic slide rail; 512, movable seat; 52, vertical drive unit 521, connecting plate; 5211, connecting rod.

Detailed ways

The present application will be further described in detail below in conjunction with accompanying drawings 1-2.

The embodiment of the present application discloses a screen printing machine. 1 and 2, a screen printing machine includes a body 1, the upper surface of the body 1 is set as a work surface 11, the work surface 11 is arranged horizontally, and the work surface 11 is used for the circuit board to be placed horizontally. At the same time, the work surface 11 also supplies silk Mesh 2 is placed with wire mesh 2 over the circuit board. The wire mesh 2 includes a frame body 21 and a net body 22, the frame body 21 is set as a box, the outer contour of the net body 22 is set in a rectangular shape, the four edges of the net body 22 are respectively fixed with the four inner walls of the frame body 21, and the net body The lower surface of 22 is attached to the upper surface of the circuit board, and the mesh body 22 is coated with printing material. In this embodiment, the printing material is ink, and in other embodiments, the printing material can be replaced according to production requirements.

In addition, the work surface 11 is provided with fixing components 3 . In this embodiment, the fixing components 3 are arranged in two groups, and the two groups of fixing components 3 are symmetrically arranged with respect to the circuit board and are respectively located on both sides of the circuit board. Specifically, the fixing assembly 3 includes a fixing rod 31 and a fixing screw 32. The fixing rod 31 is fixed on the work table 11 by bolts. The fixing rod 31 is arranged horizontally, and a side wall of the fixing rod 31 facing the circuit board is provided with an accommodating groove 311. , the accommodating grooves 311 run through both ends of the fixing rod 31, the two sides of the frame body 21 of the wire mesh 2 are respectively inserted into the accommodating grooves 311 of the fixing rod 31 in the two sets of fixing components 3, and the lower part of the frame body 21 The surface is in abutment with the groove wall of the accommodating groove 311 . At the same time, the thread of one end of the fixing bolt penetrates the upper surface of the fixing rod 31 and penetrates into the accommodating groove 311 .

Further, there are multiple fixing screws 32 . In this embodiment, the number of fixing screws 32 is set to three, and the three fixing screws 32 are evenly spaced along the length direction of the fixing rod 31 . The three fixing screws 32 are arranged at intervals along the length direction of the fixing rod 31 , so that the side of the wire mesh 2 is stressed at multiple points, and the force is uniform, which indirectly improves the installation stability of the wire mesh 2 .

In addition, one end of the fixing screw 32 that penetrates into the accommodating groove 311 is vertically fixed with an anti-separation block 321 by welding. The anti-separation block 321 is arranged in a cylindrical shape. The upper surface of the anti-detachment block 321 can abut and cooperate with the groove wall of the accommodating groove 311. When the operator excessively twists the fixing screw 32, the fixing screw 32 moves upward to a certain extent. The upper surface of the block 321 abuts against and cooperates with the groove wall of the accommodating groove 311, thereby reducing the occurrence of the separation of the fixing screw 32 and the fixing rod 31, and indirectly improving the stability of the fixing mechanism.

At the same time, a holding block 322 is fixed at one end of the fixing screw 32 away from the frame body 21 of the wire mesh 2 . The holding block 322 is arranged in a plum blossom shape, and the edge of the holding block 322 is arranged in an arc shape. Holding the block 322 to twist the fixing screw 32 is more convenient and comfortable.

In addition, a scraper bar 4 is slidably arranged above the work table 11, the scraper bar 4 slides in the horizontal direction and the vertical direction, and the lower surface of the scraper bar 4 can abut and cooperate with the upper surface of the mesh body 22 of the wire mesh 2, corresponding to Yes, a mounting seat 12 is vertically fixed on the work table 11 , and a driving assembly 5 for the horizontal movement and vertical movement of the scraper bar 4 is arranged on the mounting seat 12 .

Specifically, the drive assembly 5 includes a lateral drive unit 51 and a vertical drive unit 52. The lateral drive unit 51 includes a pneumatic slide rail 511 and a movable seat 512. The pneumatic guide rail is arranged horizontally, and the pneumatic guide rail is fixed to the mounting base 12 by bolts and faces the circuit board. The movable seat 512 slides on the pneumatic guide rail, and the movable seat 512 slides along the length direction of the pneumatic guide rail. In this embodiment, the pneumatic guide rail is the prior art, and the power source of the pneumatic guide rail can be Air supply equipment such as air pumps will not be repeated here.

In addition, the vertical driving unit 52 is configured as a driving cylinder, the driving cylinder is fixed on the upper surface of the movable seat 512 by bolts, the piston rod of the driving cylinder is arranged vertically, and the piston rod of the driving cylinder moves through the movable seat 512, and the driving cylinder The end of the piston rod is vertically fixed with a connecting plate 521, the lower surface of the connecting plate 521 is vertically fixed with a connecting rod 5211, the connecting rod 5211 also moves through the movable seat 512, and the upper surface of the scraper rod 4 is vertically fixed with the lower end of the connecting rod 5211 .

In this embodiment, the number of scraping rods 4 is set to two, and the two scraping rods 4 are arranged at intervals along the movement direction of the pneumatic slide rail 511 . When the screen printing machine is working, the two scraping rods 4 move horizontally in the same direction. Since the scraping rods 4 do a horizontal reciprocating motion, when the scraping rods 4 move halfway, one of the scraping rods 4 pushes the screen 2 onto the screen. Part of the printing material is brought out to one side of the printing area. When the scraper bar 4 moves back to complete the whole movement, another scraper bar 4 brings the printing material brought out by the previous scraper bar 4 back to the printing area. , so as to achieve the effect of returning materials, and indirectly improve the utilization rate of printing materials.

The implementation principle of a screen printing machine in the embodiment of the present application is as follows: when printing a circuit board, first place the circuit board on the work surface 11, then place the screen 2 coated with printing material on the upper surface of the circuit board, and start the pneumatic sliding Rail 511, the pneumatic slide rail 511 drives the movable seat 512 to do lateral sliding movement, and at the same time, because the driving cylinder is installed on the movable seat 512, and the upper surface of the scraper 4 is vertically fixed with the lower surface of the connecting rod 5211, and the belt The scraper rod 4 performs a lateral reciprocating motion, so that the scraper rod 4 embosses the printing material on the screen 2 onto the surface of the circuit board. The screen 2 and the circuit board are taken out, and the screen 2 can be subjected to sufficient pressure by the embossing of the scraper 4, and the back and forth movement of the scraper 4 can make each area on the circuit board be covered by the screen 2. The printing materials are uniformly applied, and therefore, compared with the related art, the screen printing machine in the present application improves the printing quality of the circuit board.

The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered within the scope of the present application. Inside.

Claims (8)

1. The utility model provides a silk screen printing machine which characterized in that: including organism (1), the upper surface of organism (1) sets up to table surface (11), table surface (11) supply to place circuit board and silk screen (2) level and place, and the circuit board is located between table surface (11) and silk screen (2), it is provided with scrapes pole (4) to slide on organism (1), the lower surface of scraping pole (4) and the upper surface laminating of silk screen (2), be provided with on organism (1) and be used for scraping drive assembly (5) of pole (4) horizontal motion and vertical motion.

2. The screen printing machine of claim 1, wherein: drive assembly (5) are including horizontal drive unit (51) and vertical drive unit (52), horizontal drive unit (51) are including pneumatic slide rail (511) and sliding seat (512), pneumatic slide rail (511) install in on organism (1), pneumatic slide rail (511) are horizontal setting, pneumatic slide rail (511) are located the top of table surface (11), sliding seat (512) are followed the length direction of pneumatic slide rail (511) slide set up in on pneumatic slide rail (511), vertical drive unit (52) set up in on sliding seat (512), scrape pole (4) install in on vertical drive unit (52).

3. A screen printing machine according to claim 2, characterized in that: the vertical driving unit (52) is arranged to be a driving cylinder, the driving cylinder is installed on the movable seat (512), a piston rod of the driving cylinder faces downwards vertically, and the end of the piston rod of the driving cylinder is vertically fixed with the upper surface of the scraping rod (4).

4. A screen printing machine according to claim 2, characterized in that: the number of the scraping rods (4) is two, and the two scraping rods (4) are arranged at intervals along the moving direction of the pneumatic sliding rail (511).

5. The screen printing machine of claim 1, wherein: be provided with fixed subassembly (3) on organism (1), fixed subassembly (3) are including dead lever (31) and clamping screw (32), dead lever (31) are fixed in on table surface (11), storage tank (311) have been seted up to the lateral wall of dead lever (31), storage tank (311) run through the both ends of dead lever (31), silk screen (2) with storage tank (311) cooperation of pegging graft, clamping screw (32) screw thread runs through the upper surface of dead lever (31), clamping screw (32) one end with the lateral wall butt cooperation of silk screen (2), another lateral wall that silk screen (2) is relative with another lateral wall butt cooperation of storage tank (311).

6. A screen printing machine according to claim 5, characterized in that: the fixing screw rods (32) are arranged in a plurality of numbers, and the fixing screw rods (32) are arranged at intervals along the length direction of the fixing rod (31).

7. A screen printing machine according to claim 5, characterized in that: one end of the fixing screw rod (32) is provided with an anti-falling block (321), and the upper surface of the anti-falling block (321) is in butt fit with the groove wall of the accommodating groove (311).

8. A screen printing machine according to claim 5, characterized in that: the other end of the fixing screw rod (32) is fixed with a holding block (322), and the edge of the holding block (322) is arranged in an arc shape.

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