CN219901434U

CN219901434U - Circuit board polisher

Info

Publication number: CN219901434U
Application number: CN202320770088.XU
Authority: CN
Inventors: 邓稳; 陈良峰; 江民权; 杨雄; 李强; 胡斌
Original assignee: Zhuhai Longchang Circuit Technology Co ltd
Current assignee: Zhuhai Longchang Circuit Technology Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-10-27
Anticipated expiration: 2033-04-07

Abstract

The utility model relates to a circuit board grinding machine, which comprises a base, a conveyor belt, a grinding assembly and a dust collection assembly, wherein the conveyor belt is arranged on the base and is used for conveying a circuit board; the polishing assembly is arranged on the base and is positioned above the conveyor belt, so that when the conveyor belt conveys the circuit board, the polishing assembly is used for polishing the circuit board; the dust collection assembly comprises a negative pressure air knife and a negative pressure generator, the negative pressure air knife is arranged on the base and located at the side of the polishing assembly, the negative pressure air knife is provided with an adsorption cavity, the bottom of the negative pressure air knife is provided with a slag suction port communicated with the adsorption cavity, the upper end of the negative pressure air knife is provided with an air pipe interface communicated with the adsorption cavity, the slag suction port is arranged towards the conveying belt, the negative pressure generator is connected with the air pipe interface, and the dust collection assembly is used for adsorbing copper slag generated by the polishing circuit board. The utility model can recycle copper slag, avoid waste and reduce the production cost of enterprises.

Description

Circuit board polisher

Technical Field

The utility model relates to the technical field of circuit board processing equipment, in particular to a circuit board grinding machine.

Background

The circuit board is one of important parts in the electronic industry, almost every electronic device, as small as an electronic watch, a calculator, as large as a computer, a communication electronic device and a military weapon system, and only electronic components such as an integrated circuit are required, and a printed board is required for electric interconnection between the electronic components, so that the circuit board has extremely wide application. In the manufacturing process of the circuit board, polishing is required.

Patent CN113732847A is two-sided grinding device of circuit board, including two backup pads of symmetry fixing in the frame, be provided with the bracing piece between two backup pads, the bracing piece both ends all are provided with the brush board of being connected with the bracing piece hinge, evenly be provided with many brush hair on the brush board, two still be provided with the slide rail between the backup pad, correspond the position fixed with a plurality of sliders with slide rail sliding connection on the bracing piece with the slide rail, the bracing piece is moved on the slide rail by motor drive, two still be fixed with a plurality of cylinders between the backup pad, two the brush board is closed each other by the cylinder drive, two all be fixed with the fixed slot in the backup pad.

However, in the prior art, the polished copper slag is scattered around the device, so that the copper slag is difficult to recycle, the copper slag cannot be recycled, and the production cost of enterprises is increased.

Disclosure of Invention

In view of the above, it is necessary to provide a circuit board polisher for solve the copper slag that produces after polishing among the prior art and scatter around the device, copper slag recovery difficulty leads to unable recycle of copper slag, has increased the technical problem of manufacturing cost of enterprise.

The utility model provides a circuit board polisher, which comprises:

a base;

the conveying belt is arranged on the base and is used for conveying the circuit board;

the polishing assembly is arranged on the base and positioned above the conveyor belt, so that when the conveyor belt conveys the circuit board, the polishing assembly is used for polishing the circuit board; the method comprises the steps of,

the dust collection assembly comprises a negative pressure air knife and a negative pressure generator, the negative pressure air knife is arranged on the base and located at the side of the polishing assembly, the negative pressure air knife is provided with an adsorption cavity, the bottom of the negative pressure air knife is provided with a slag suction port communicated with the adsorption cavity, the upper end of the negative pressure air knife is provided with an air pipe interface communicated with the adsorption cavity, the slag suction port faces the conveyor belt, the negative pressure generator is connected with the air pipe interface, and the dust collection assembly is used for adsorbing copper slag generated by a polishing circuit board.

Optionally, the negative pressure air knife includes first shell board and second shell board, first shell board with the second shell board is followed the direction of delivery interval of conveyer belt is laid, first shell board with the second shell board encloses jointly and closes and form the absorption chamber, the absorption chamber is the convergent setting from top to bottom.

Optionally, the negative pressure air knife further comprises a third shell plate, wherein the upper end of the third shell plate is connected with the lower end of the first shell plate, and the third shell plate is gradually inclined from top to bottom along the conveying direction.

Optionally, the conveyor belt is movably mounted to the base in a vertical direction, such that a distance between the conveyor belt and the polishing assembly is adjustable.

Optionally, the circuit board polisher further includes a lifting mechanism, the lifting mechanism is mounted on the base and located below the conveyor belt, and the lifting mechanism is abutted to the conveyor belt, so that the conveyor belt is driven to move by the lifting mechanism.

Optionally, elevating system includes connecting seat, bracing piece, worm wheel and worm, the connecting seat install in the base, the connecting seat is equipped with and holds the chamber, the bracing piece is located hold the chamber, the upper and lower both ends of bracing piece stretch out respectively to hold the chamber outside, the upper end of bracing piece with the conveyer belt butt, the bracing piece periphery is provided with the external screw thread, the worm wheel along vertical direction axis rotationally install in hold the chamber, the worm wheel middle part is tubular with the screw hole, the bracing piece with worm wheel screw-thread fit, the worm along horizontal direction axis rotationally install in hold the chamber, just the both ends of worm stretch out to hold outside the chamber, the worm with the worm wheel meshes, so as to pass through the worm rotates, drives the worm wheel rotates.

Optionally, the lifting mechanism is provided with a plurality of lifting mechanisms;

the circuit board polisher further comprises a connecting assembly, wherein the connecting assembly is connected with one ends of the worms respectively, so that when one of the worms rotates, the rest of the worms are driven to rotate.

Optionally, the polishing assembly includes rubber roller, tensioning roller, abrasive band, drive assembly and rectifies the subassembly, the rubber roller is located along first direction axis rotation the base, the tensioning roller is located the base, and be located the top of rubber roller, the tensioning roller is along vertical direction activity setting, so that the tensioning roller with distance between the rubber roller is adjustable, the abrasive band cup joint in the periphery of rubber roller and tensioning roller, drive assembly locates the base, drive assembly with the rubber roller is connected for the drive the rubber roller rotates, rectify the subassembly and be connected with the tensioning roller, rectify the subassembly and be used for restricting the tensioning roller rocks, wherein, first direction with the direction of transfer of conveyer belt is mutually perpendicular setting.

Optionally, the polishing assembly is provided with a plurality of polishing assemblies, and the plurality of polishing assemblies are distributed at intervals along the conveying direction of the conveying belt.

Optionally, the circuit board polisher further includes a plurality of anti-flying compression rollers, and is a plurality of anti-flying compression rollers are followed the direction of delivery interval of conveyer belt is laid, and divide to locate the both sides of polishing assembly, anti-flying compression rollers all are located the conveyer belt top.

Compared with the prior art, the circuit board grinding machine provided by the utility model has the advantages that the conveying belt is used for conveying the circuit board, the grinding assembly is arranged above the conveying belt, when the circuit board passes through the lower part of the grinding assembly, the grinding assembly is started and grinds the circuit board, most of the ground copper slag can be scattered on the conveying belt and conveyed to the lower part of the negative pressure air knife by the conveying belt, at the moment, the negative pressure generator works, so that the suction force is generated at the slag suction port of the negative pressure air knife, and the copper slag ground by the grinding assembly is sucked into the suction cavity.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and its details set forth in the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic perspective view of an embodiment of a circuit board grinder according to the present utility model;

FIG. 2 is a schematic front view of the circuit board grinder of FIG. 1 with the base removed;

FIG. 3 is a perspective view of the circuit board grinder of FIG. 2 with the base removed;

FIG. 4 is a schematic perspective view of the negative pressure air knife in FIG. 1;

FIG. 5 is a schematic perspective view of the sanding assembly of FIG. 1;

FIG. 6 is a schematic perspective view of the sanding assembly of FIG. 5 with the abrasive belt removed;

FIG. 7 is a schematic perspective view of the conveyor belt and lifting mechanism of FIG. 1;

fig. 8 is a partial enlarged view of a portion a in fig. 7.

Reference numerals illustrate:

1-base, 11-frame, 12-roof, 13-mounting plate, 2-conveyer belt, 3-polishing component, 31-rubber roller, 32-tensioning roller, 33-abrasive belt, 34-driving component, 341-driving motor, 342-belt pulley, 343-belt, 35-rectifying component, 36-first cylinder, 4-negative pressure air knife, 41-slag suction port, 42-air pipe interface, 43-first shell plate, 44-second shell plate, 45-third shell plate, 5-elevating mechanism, 51-connecting seat, 52-supporting rod, 53-worm, 54-first connecting shaft, 55-second connecting shaft, 56-commutator, 57-hand wheel, 58-synchronous belt pulley, 59-synchronous belt, 6-guide rod, and 7-anti-fly roller.

Detailed Description

The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 3, the circuit board polishing machine comprises a base 1, a conveyor belt 2, a polishing assembly 3 and a dust collection assembly, wherein the conveyor belt 2 is arranged on the base 1, and the conveyor belt 2 is used for conveying a circuit board; the polishing component 3 is arranged on the base 1 and is positioned above the conveyor belt 2, so that when the conveyor belt 2 conveys the circuit board, the polishing component 3 is used for polishing the circuit board; the dust collection assembly comprises a negative pressure air knife 4 and a negative pressure generator, the negative pressure air knife 4 is arranged on the base 1 and located at the side of the polishing assembly 3, the negative pressure air knife 4 is provided with an adsorption cavity, the bottom of the negative pressure air knife 4 is provided with a slag suction port 41 communicated with the adsorption cavity, the upper end of the negative pressure air knife is provided with an air pipe interface 42 communicated with the adsorption cavity, the slag suction port 41 faces the conveyor belt 2, the negative pressure generator is connected with the air pipe interface 42, and the dust collection assembly is used for adsorbing copper slag generated by a polishing circuit board.

According to the circuit board polishing machine provided by the utility model, the conveyor belt 2 is used for conveying the circuit board, the polishing assembly 3 is arranged above the conveyor belt 2, when the circuit board passes through the lower part of the polishing assembly 3, the polishing assembly 3 is started and polishes the circuit board, most of polished copper slag can be scattered on the conveyor belt 2 and is conveyed to the lower part of the negative pressure air knife 4 by the conveyor belt 2, at the moment, the negative pressure generator works, so that the suction force is generated by the slag suction port 41 of the negative pressure air knife 4, and the copper slag polished by the polishing assembly 3 is sucked into the adsorption cavity.

Further, referring to fig. 1, the specific structure of the base 1 is not limited herein, in this embodiment, the base 1 includes a frame 11 and a top plate 12, the top plate 12 is disposed on the top of the frame 11, and beams are disposed at the bottom and the middle of the frame 11, where the conveyor belt 2 is mounted on the bottom beam of the frame 11, and the conveyor belt 2 is substantially flush with the middle beam, the polishing component 3 is mounted on the middle beam, and the negative pressure air knife 4 is mounted on the top plate 12.

Further, referring to fig. 4, the specific shape of the negative pressure air knife 4 is not limited herein, in this embodiment, the negative pressure air knife 4 includes a first shell plate 43 and a second shell plate 44, the first shell plate 43 and the second shell plate 44 are disposed at intervals along the conveying direction of the conveying belt 2, the first shell plate 43 and the second shell plate 44 jointly enclose to form the adsorption cavity, the adsorption cavity is gradually reduced from top to bottom, and the first shell plate 43 and the second shell plate 44 are gradually reduced from bottom to top, so that the suction effect is improved by the arrangement, and the suction effect can be improved by making the slag suction port 41 generate stronger suction.

Further, the slag suction port 41 is provided in a long shape, and the width of the slag suction port is adapted to the width of the conveyor belt 2, so that copper slag on the conveyor belt 2 can be completely adsorbed by the arrangement, and omission is avoided.

Further, when the polishing assembly 3 polishes the circuit board, copper slag has a track along which the copper slag splashes in the tangential direction of the polishing assembly 3, so that the copper slag splashed can be absorbed better, the negative pressure air knife 4 further comprises a third shell plate 45, the upper end of the third shell plate 45 is connected with the lower end of the first shell plate 43, the third shell plate 45 is gradually inclined from top to bottom along the conveying direction, the negative pressure air knife 4 is positioned on one side where the copper slag splashes, and the copper slag splashed during polishing is blocked by the second shell plate 44 and falls on the third shell plate 45, and is then sucked away by the slag suction port 41.

Further, referring to fig. 7 to 8, circuit boards of different specifications and models have different thicknesses, in order to polish different circuit boards, the conveyor belt 2 is movably mounted on the base 1 along the vertical direction, so that the distance between the conveyor belt 2 and the polishing assembly 3 can be adjusted, and when the polishing device is specifically used, the distance between the conveyor belt 2 and the polishing assembly 3 can be adjusted according to the thickness of the circuit board to be polished, so that the polishing device is matched with the circuit boards, and the circuit boards of different thicknesses can be polished if the polishing device is arranged, so that the application range of the whole polishing device is enlarged.

Further, the specific form of the movement of the conveyor belt 2 is not limited, and in this embodiment, the circuit board grinding machine further includes a lifting mechanism 5, where the lifting mechanism 5 is mounted on the base 1 and located below the conveyor belt 2, and the lifting mechanism 5 abuts against the conveyor belt 2 to drive the conveyor belt 2 to move through the lifting mechanism 5.

Specifically, elevating system 5 includes connecting seat 51, bracing piece 52, worm wheel and worm 53, connecting seat 51 install in base 1, connecting seat 51 is equipped with and holds the chamber, bracing piece 52 is located hold the chamber, the upper and lower both ends of bracing piece 52 stretch out respectively to hold the chamber outside, the upper end of bracing piece 52 with conveyer belt 2 butt, the bracing piece 52 periphery is provided with the external screw thread, the worm wheel is installed along vertical axis rotationally in hold the chamber, the worm wheel middle part is run through and is equipped with the screw hole, bracing piece 52 with worm wheel screw thread fit, worm 53 is installed along horizontal axis rotationally in hold the chamber, just the both ends of worm 53 stretch out to hold the chamber outside, worm 53 with the worm wheel meshes, so as to pass through worm 53 rotates, drives the worm wheel rotates. When the conveyer belt is particularly used, the worm 53 is rotated, the worm 53 drives the worm wheel to rotate, the worm wheel is in threaded fit with the supporting rod 52 when rotating, so that the supporting rod 52 can move along the vertical direction, the supporting rod 52 is abutted with the conveyer belt 2, so that the conveyer belt 2 can be driven to move along the vertical direction through the supporting rod 52, and the worm wheel and the worm 53 have a self-locking function, so that after the position of the conveyer belt 2 is adjusted, the conveyer belt 2 can be locked at a set position, and the movement of the conveyer belt is avoided.

Further, the lifting mechanism 5 is provided with a plurality of lifting mechanisms; the circuit board grinding machine further comprises a connecting component, wherein the connecting component is respectively connected with one ends of the plurality of worms 53, so that when one worm 53 is rotated, the rest of the worms 53 are driven to rotate.

Further, in the present embodiment, four lifting mechanisms 5 are provided, and four lifting mechanisms 5 are located at four corners of the conveyor belt 2.

Further, the frame 11 is penetrated with four guiding holes, four guiding holes are located respectively at four bights of frame 11, the circuit board polisher still includes four guide bars 6, every guide bar 6 extends along vertical direction and sets up, just the lower extreme of guide bar 6 is equipped with the butt piece, four guide bar 6 and four guiding hole one-to-one, the upper end fixed mounting of guide bar 6 in the side of conveyer belt 2, guide bar 6 slides and locates in the guiding hole, so that conveyer belt 2 sets up along vertical direction activity, the upper end of bracing piece 52 with the butt piece is to the butt, so that drive through bracing piece 52 guide bar 6 moves along vertical direction, so set up, both guaranteed when conveyer belt 2 moves, make conveyer belt 2 be in the horizontality all the time again.

Further, in order to synchronously drive the four lifting mechanisms 5 to move, the connecting assembly includes four first connecting shafts 54, two commutators 56 and a second connecting shaft 55, one ends of the four first connecting shafts 54 are respectively connected with the four worms 53, the two first connecting shafts 54 located on the same side are respectively connected with the commutators 56, the second connecting shaft 55 is connected with the two commutators 56, so that when one of the worms 53 rotates, the rest of the worms 53 can be rotated by the synchronous belt 59, the rotation directions of the rest of the worms 53 are kept consistent, and the commutators 56 are used for ensuring that the rotation directions of the worms 53 are consistent.

Further, because the lifting mechanism 5 is located below the frame 11, when in operation, an operator needs to squat down to operate, which results in inconvenient operation, so the circuit board grinding machine further comprises a hand wheel 57, a connecting rod, two synchronous belt 59 wheels 58 and a synchronous belt 59, the connecting rod extends along the first direction, the connecting rod is rotatably installed on the base 1 along the axis of the second direction, two ends of the connecting rod are respectively connected with the hand wheel 57 and one synchronous belt 59 wheel 58, the other synchronous belt 59 wheel 58 is connected with one of the worms 53, the synchronous belt 59 is connected with two synchronous belt 59 wheels 58, and the connecting rod is located in the middle of the frame 11, so that the lifting mechanism 5 can be driven through the hand wheel 57, and the operation is convenient.

Further, the specific structure of the polishing assembly 3 is not limited, in this embodiment, please refer to fig. 5 to 6, the polishing assembly 3 includes a rubber roller 31, a tensioning roller 32, an abrasive belt 33, a driving assembly 34 and a deviation rectifying assembly 35, the rubber roller 31 is rotatably disposed on the base 1 along a first direction axis, the tensioning roller 32 is disposed on the base 1 and is located above the rubber roller 31, the tensioning roller 32 is movably disposed along a vertical direction, so that a distance between the tensioning roller 32 and the rubber roller 31 is adjustable, the abrasive belt 33 is sleeved on the rubber roller 31 and an outer circumference of the tensioning roller 32, the driving assembly 34 is disposed on the base 1, the driving assembly 34 is connected with the rubber roller 31 and is used for driving the rubber roller 31 to rotate, the deviation rectifying assembly 35 is disposed on the base 1, the deviation rectifying assembly 35 is connected with the tensioning roller 32, and the deviation rectifying assembly 35 is used for limiting the tensioning roller 32 to shake, and the first direction and the conveying direction of the conveying belt 2 are mutually perpendicular. When the belt sander is specifically used, the driving assembly 34 drives the rubber roller 31 to rotate, the rubber roller 31 drives the abrasive belt 33 to rotate between the rubber roller 31 and the tensioning roller 32, so that the circuit board can be polished through the abrasive belt 33, the distance between the tensioning roller 32 and the rubber roller 31 can be adjusted, the abrasive belt 33 can be tensioned, and the abrasive belt 33 is prevented from loosening to reduce polishing effect.

Further, the specific form of the movable arrangement of the tensioning roller 32 along the vertical direction is not limited, in this embodiment, the base 1 further includes a mounting plate 13, the mounting plate 13 is mounted on the frame 11, and the mounting plate 13 is located between the rubber roller 31 and the tensioning roller 32, the polishing assembly 3 further includes a first cylinder 36, the first cylinder 36 is mounted on the mounting plate 13, and a push rod of the first cylinder 36 is vertically upward, and the push rod of the first cylinder 36 is connected with a mounting seat of the tensioning roller 32, so that the tensioning roller 32 is driven to move by the driving cylinder.

Further, the driving assembly 34 includes a driving motor 341, two pulleys 342 and a belt 343, the driving motor 341 is disposed at the bottom of the frame 11, one of the two pulleys 342 is mounted on the main shaft of the driving motor 341, the other is mounted on the rubber roller 31, and the belt 343 is mounted on the two pulleys 342. By the arrangement, the transverse layout of the whole device is saved, and the space is saved.

Further, the polishing components 3 are provided with a plurality of polishing components 3 which are distributed at intervals along the conveying direction of the conveying belt 2, and the polishing components 3 can be provided with abrasive belts 33 of different types to improve polishing effect.

Further, in order to prevent the circuit board from moving when polishing the circuit board, the circuit board polisher further comprises a plurality of anti-flying press rollers 7, the anti-flying press rollers 7 are arranged at intervals along the conveying direction of the conveying belt 2 and are respectively arranged on two sides of the polishing assembly 3, the anti-flying press rollers 7 are all positioned above the conveying belt 2, and the circuit board moving is limited by the anti-flying press rollers 7.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. A circuit board sander, comprising:

a base;

2. The circuit board grinding machine of claim 1, wherein the negative pressure air knife comprises a first shell plate and a second shell plate, the first shell plate and the second shell plate are distributed at intervals along the conveying direction of the conveying belt, the first shell plate and the second shell plate jointly enclose to form the adsorption cavity, and the adsorption cavity is gradually reduced from top to bottom.

3. The circuit board grinding machine according to claim 2, wherein the negative pressure air knife further comprises a third shell plate, an upper end of the third shell plate is connected with a lower end of the first shell plate, and the third shell plate is gradually inclined from top to bottom along the conveying direction.

4. The circuit board sander of claim 1, wherein the conveyor belt is movably mounted to the base in a vertical direction such that a distance between the conveyor belt and the sanding assembly is adjustable.

5. The circuit board grinding machine of claim 4 further comprising a lifting mechanism mounted to the base below the conveyor belt, the lifting mechanism being in abutment with the conveyor belt to drive the conveyor belt into motion by the lifting mechanism.

6. The circuit board grinding machine according to claim 5, wherein the lifting mechanism comprises a connecting seat, a supporting rod, a worm wheel and a worm, the connecting seat is mounted in the base, the connecting seat is provided with a containing cavity, the supporting rod is arranged in the containing cavity, the upper end and the lower end of the supporting rod extend out of the containing cavity respectively, the upper end of the supporting rod is abutted to the conveying belt, an external thread is arranged on the periphery of the supporting rod, the worm wheel is rotatably mounted in the containing cavity along a vertical axis, a threaded hole is formed in the middle of the worm wheel, the supporting rod is in threaded fit with the worm wheel, the worm is rotatably mounted in the containing cavity along a horizontal axis, two ends of the worm extend out of the containing cavity, and the worm is meshed with the worm wheel so as to drive the worm wheel to rotate through rotation of the worm.

7. The circuit board grinding machine of claim 6 wherein said lifting mechanism is provided in plurality;

8. The circuit board polisher of claim 1, wherein the polishing assembly comprises a rubber roller, a tensioning roller, an abrasive belt, a driving assembly and a deviation rectifying assembly, the rubber roller is rotatably arranged on the base along a first direction axis, the tensioning roller is arranged on the base and is located above the rubber roller, the tensioning roller is movably arranged in a vertical direction so that the distance between the tensioning roller and the rubber roller can be adjusted, the abrasive belt is sleeved on the peripheries of the rubber roller and the tensioning roller, the driving assembly is arranged on the base, the driving assembly is connected with the rubber roller and used for driving the rubber roller to rotate, the deviation rectifying assembly is arranged on the base, the deviation rectifying assembly is connected with the tensioning roller, and the deviation rectifying assembly is used for limiting the tensioning roller to shake, wherein the first direction and the conveying direction of the conveying belt are perpendicular to each other.

9. The circuit board sander of claim 8, wherein a plurality of said sanding assemblies are provided, a plurality of said sanding assemblies being spaced apart along the direction of conveyance of said conveyor.

10. The circuit board grinding machine of claim 1, further comprising a plurality of anti-fly rollers, the plurality of anti-fly rollers being spaced along the conveying direction of the conveyor belt and being disposed on either side of the grinding assembly, the anti-fly rollers being disposed above the conveyor belt.