Circuit board conveying device capable of resisting electrostatic interference

Abstract

The utility model belongs to the technical field of circuit boards, and particularly relates to an anti-static interference circuit board conveying device. Comprising a rack and a conveyor arranged in the rack, and further comprises a dust removal mechanism arranged above the conveyor; the automatic feeding mechanism comprises a supporting frame arranged on one side of the rack, a storage box arranged on the supporting frame and a feeding assembly arranged on the supporting frame; the electrostatic elimination mechanism comprises an electrostatic eliminator body arranged above the conveyor, a plurality of ion tuyeres arranged at the bottom of the electrostatic eliminator body and an offset voltage reduction unit which covers the ion tuyeres and is movably connected with the electrostatic eliminator body; and the feeding assembly is used for placing the circuit board in the storage box on the conveyor. The conveyor provided by the utility model can be used for carrying out static elimination treatment on the circuit board.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of circuit board, especially an anti-static interference circuit board conveying device. BACKGROUND

[0002] With the rapid development of electronic information technology, circuit board as the core component of various electronic devices is widely used in computers, communication equipment, consumer electronics, industrial control and many other fields. It carries various electronic components and complex circuit connections, provides physical basis for electronic signal transmission, processing and control, and its performance directly affects the function realization, stability and reliability of the entire electronic device.

[0003] In the production and manufacturing process of circuit board, the conveying link is very important, but the traditional circuit board conveying device often only focuses on realizing the basic conveying function, such as relying on a simple transmission structure, like rack, transmission roller and motor driven conveying belt movement to complete the transfer of circuit board. This kind of device ignores the serious harm that static interference may cause to circuit board in the conveying process. In actual production environment, static electricity is easily generated due to friction, separation and other factors, and when the static voltage reaches a certain level, it will cause electrostatic discharge phenomenon. Electrostatic discharge may break through sensitive components on the circuit board, thereby affecting the production capacity and delivery cycle of the entire circuit board production and manufacturing. UTILITY MODEL CONTENTS

[0004] The conveyor of the utility model can perform static elimination treatment on the circuit board.

[0005] The utility model aims at realizing an anti-static interference circuit board conveying device, which comprises a rack and a conveyor arranged in the rack, and is characterized in that it further comprises:

[0006] A dust removal mechanism is arranged above the conveyor.

[0007] An automatic feeding mechanism comprises a support frame arranged on one side of the rack, a storage box arranged on the support frame, and a feeding assembly arranged on the support frame.

[0008] An electrostatic elimination mechanism comprises an electrostatic eliminator body arranged above the conveyor, a plurality of ion air nozzles arranged at the bottom of the electrostatic eliminator body, and an offset voltage reduction unit covering the ion air nozzles and movably connected with the electrostatic eliminator body.

[0009] The feeding assembly is used to place the circuit board in the storage box on the conveyor.

[0010] The utility model is further provided with an offset voltage reduction unit comprising:

[0011] A frame plate is arranged below the body of the static electricity eliminator, and a plurality of openings corresponding to the plurality of ion nozzles are formed in the frame plate, and a plurality of porous electrode plates are arranged in the openings.

[0012] A hinged plate is arranged on the top of the frame plate along the length direction of the body of the static electricity eliminator, and one end of the hinged plate is hinged to one side of the body of the static electricity eliminator.

[0013] The utility model further sets up that the hinged plate and static electricity eliminator body between be equipped with separable connecting assembly, connecting assembly includes:

[0014] A first magnet is arranged at the other end of the hinged plate.

[0015] A second magnet is arranged at the other side of the static electricity eliminator and is connected with the first magnet.

[0016] The utility model further sets up that the feeding assembly includes:

[0017] A first screw rod is horizontally arranged in the support frame, and a first motor for driving the first screw rod is arranged on the support frame.

[0018] A mounting plate is arranged below the first screw rod, and an electric telescopic rod for driving the mounting plate to ascend and descend is arranged between the mounting plate and the first screw rod.

[0019] Suction cups are uniformly arranged on the bottom of the mounting plate and are connected with the inside of the mounting plate, and the mounting plate is connected with an external vacuum equipment.

[0020] The utility model further sets up that a pushing assembly is arranged below the storage box, and the pushing assembly includes:

[0021] A second screw rod is connected to the support frame at one end and is provided with a second motor at the other end.

[0022] A push plate is sleeved on the second screw rod, and a plurality of push rods connected with the bottom of the storage box are arranged on the push plate.

[0023] The utility model further sets up that a mounting rack is arranged on the rack and covers the conveyor, a connecting plate is arranged on the top of the body of the static electricity eliminator, and a connecting support is arranged between the connecting plate and the mounting rack.

[0024] The utility model further sets up that the connecting support includes:

[0025] A lower support plate is abutted with the top of the connecting plate at the lower part and extends upward at the upper part, and an adjusting arc-shaped groove is formed in the upper part of the lower support plate.

[0026] An upper support plate is abutted with the upper part of the lower support plate at the lower part, the upper part of the upper support plate is connected with the mounting rack, and a threaded hole matched with the adjusting arc-shaped groove is formed in the lower part of the upper support plate.

[0027] The utility model further provides for, the dust removal mechanism includes:

[0028] Dust removal roller, be located in mounting frame, dust removal roller both ends are rotatably connected in mounting frame, and mounting frame is equipped with the third motor for driving dust removal roller rotation;

[0029] Dust removal brush, cover dust removal roller.

[0030] Through adopt above -mentioned technical scheme, the utility model can obtain beneficial effect is:

[0031] 1. through setting static electricity elimination mechanism, wherein the ion wind nozzle of static electricity eliminator body bottom can produce a large number of ion wind with positive and negative charge, when the circuit board is in the conveying belt and passes, these ions and the static electricity of circuit board surface neutralize each other, thereby effectively removes static electricity. The offset voltage reduction unit outside the ion wind nozzle, the porous electrode plate on the frame plate can further optimize the electric field distribution, reduce the voltage offset that can be produced in the static electricity elimination process, ensure the stability of static electricity elimination effect.

[0032] 2. the setting of automatic feeding mechanism realizes the automatic conveying of circuit board. The storage box is used to store the circuit board stacked from bottom to top, and under the coordinated operation of the up-and-down movement of the mounting plate controlled by the first motor driving the first lead screw and the electric push rod and the cooperation of the suction cup adsorbing the circuit board, the circuit board in the storage box can be accurately placed on the conveyor. At the same time, the material pushing assembly moves the push plate and push rod driven by the second motor driving the second lead screw, so as to push the storage box upward, ensuring that the uppermost circuit board is always in a position convenient for material taking. The whole automatic feeding process does not need manual intervention, reduces the feeding time, improves the conveying efficiency of the circuit board, and thus improves the production efficiency of the whole production process.

[0033] 3. the dust removal roller in the dust removal assembly rotates under the driving of the third motor, and the dust removal brush on its surface can clean the dust and other impurities on the surface of the circuit board. In the process of conveying the circuit board, as the conveying belt moves, when passing under the dust removal roller, the dust removal brush contacts the surface of the circuit board, and the dust is swept off, avoiding the accumulation of dust on the circuit board, preventing the circuit board from being short-circuited or other electrical performance problems caused by dust, and ensuring the quality stability of the circuit board in the production process. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is the utility model first direction's three-dimensional structure schematic diagram;

[0035] Figure 2 is the utility model second direction's three-dimensional structure schematic diagram;

[0036] Figure 3It is the overhead structure schematic view of the utility model;

[0037] Figure 4 It is the A-A section structure schematic view of the utility model Figure 3 ;

[0038] Figure 5 It is the A-A section structure schematic view of the utility model Figure 4 ;

[0039] Figure 6 It is the three-dimensional structure schematic view of the utility model static electricity elimination mechanism.

[0040] In the drawing, reference numerals are: 1, rack;2, conveyor;3, dust removal mechanism;30, dust removal roller;31, third motor;32, dust removal brush;4, automatic feeding mechanism;40, support frame;41, storage box;5, static electricity elimination mechanism;50, static electricity eliminator body;51, ion air nozzle;52, offset voltage reduction unit;520, frame plate;521, porous electrode plate;522, hinged plate;6, connecting assembly;60, first magnet;61, second magnet;7, feeding assembly;70, first lead screw;71, first motor;72, mounting plate;73, electric telescopic rod;74, suction cup;8, pushing assembly;80, second lead screw;81, second motor;82, push plate;83, push rod;9, mounting frame;10, connecting plate;11, connecting support;110, lower support plate;111, adjusting arc-shaped groove;112, upper support plate. DETAILED DESCRIPTION

[0041] The utility model will be further described in conjunction with the specific embodiment with the drawings, referring to Figures 1-6 :

[0042] Embodiment 1

[0043] The embodiment provides a kind of circuit board conveying device of anti-static interference, including rack 1 and the conveyor 2 in rack 1 It is equipped with, still include:

[0044] Dust removal mechanism 3, is equipped with the top of conveyor 2;

[0045] Automatic feeding mechanism 4, including the support frame 40 of being equipped with in rack 1 side, storage box 41 of being equipped with on support frame 40 and the feeding assembly 742 of being equipped with on support frame 40;

[0046] Static electricity elimination mechanism 5, including the static electricity eliminator body 50 of being equipped with in the top of conveyor 2, multiple ion air nozzle 51 of being equipped with in the bottom of static electricity eliminator body 50 and the offset voltage reduction unit 52 of being covered in ion air nozzle 51 outside and with static electricity eliminator body 50 movably connected;

[0047] The feeding assembly 742 is used to place the circuit board in the storage box 41 on the conveyor 2.

[0048] The rack 1 is a support structure of the whole conveying device, and provides a stable mounting basis for the conveyor 2, the automatic feeding mechanism 4, the static elimination mechanism 5, the dust removal mechanism 3 and other components, ensures that the relative positions of the components remain stable during the working process, and enables the whole device to operate normally. The rack 1 is generally a cuboid or square frame structure, so as to reasonably arrange other components and facilitate installation and integration on the production line.

[0049] The conveyor 2 is used to realize horizontal conveying of the circuit board in the device, and conveys the circuit board placed by the automatic feeding mechanism 4 from one position to the next processing or detection station, ensures continuous and stable transmission of the circuit board in the production process, is one of the core components of the whole conveying device, realizes the automatic transmission function of the circuit board, and improves the production efficiency. The conveyor 2 generally consists of a conveying belt, a driving roller, a driven roller and a carrier roller. The driving roller in the conveyor 2 is connected with the motor through a transmission component such as a shaft coupling or a belt pulley, so as to realize power transmission and drive the roller to rotate and drive the conveying belt to move. The driven roller and the carrier roller are installed on the rack 1 through a bearing seat, so as to freely rotate and reduce the running resistance of the conveying belt.

[0050] The dust removal mechanism 3 is mainly used to remove dust and impurities on the surface of the circuit board, so as to ensure that the circuit board has a clean surface before entering the subsequent processing or detection process, prevent dust particles from causing adverse effects on the electrical performance and welding quality of the circuit board, and improve the quality and reliability of the product.

[0051] The support frame 40 provides a stable support structure for the storage box 41 and the feeding assembly 742, ensures the stability and reliability of the whole automatic feeding mechanism 4 during the working process, enables the automatic feeding mechanism 4 to accurately complete the feeding operation of the circuit board, avoids feeding errors or failures caused by unstable support, and is a basic component of the automatic feeding mechanism 4. The support frame 40 is generally a vertical cuboid frame, which is directly placed on the ground and has a certain interval with the rack 1.

[0052] The storage box 41 is used to store the circuit board to be processed, provides an orderly temporary storage space for the circuit board, ensures that the circuit board can be arranged in an orderly manner before entering the feeding assembly 742, facilitates the feeding assembly 742 to accurately grasp and convey the circuit board, improves the efficiency and accuracy of feeding, and also protects the circuit board from external collision and damage. The storage box 41 is generally a cuboid or square container, which can be fixed on the support frame 40 by a clamping groove or a bolt.

[0053] The feeding assembly 742 is responsible for accurately grabbing and placing the circuit board in the storage box 41 on the conveyor 2, realizing the automatic feeding process of the circuit board, and is the core executive component of the automatic feeding mechanism 4.

[0054] The electrostatic eliminator body 50 is a prior art for generating a high-voltage electric field to ionize air into a large number of positive and negative ions to provide an ion source for eliminating static electricity on the circuit board. The static electricity on the surface of the circuit board is neutralized by the generated ions, thereby achieving the purpose of eliminating static electricity and avoiding damage to the circuit board caused by static electricity, such as component damage caused by electrostatic discharge, adsorption of dust affecting electrical performance, etc. The electrostatic eliminator body 50 is generally in the shape of a cuboid or a square.

[0055] The ion wind nozzle 51 serves as an output channel for ions, guiding and blowing the positive and negative ions generated by the electrostatic eliminator body 50 to the surface of the circuit board. Its main function is to effectively deliver ions to the position of the circuit board where static electricity needs to be eliminated, so that the ions can fully contact and neutralize the static electricity on the surface of the circuit board, thereby achieving static electricity elimination. The ion wind nozzle 51 is generally in a tubular structure, one end of which can be fixed to the bottom of the electrostatic eliminator body 50 by screw connection or sleeve connection, and the other end is open towards the circuit board.

[0056] The offset voltage reduction unit 52 is used to improve the uniformity of static electricity elimination. When the surface condition of the circuit board causes uneven static electricity distribution and generates offset voltage, the offset voltage reduction unit 52 can uniformly distribute and adjust the angle of the ion wind blown by the ion wind nozzle 51, so that the ions act more uniformly on the surface of the circuit board, thereby reducing the offset voltage and improving the effect and quality of static electricity elimination, ensuring that the static electricity on each part of the circuit board can be fully neutralized.

[0057] The frame plate 520 is used to assist the ion wind nozzle 51 to better achieve the work of static electricity elimination, and guides and uniformly distributes the ion wind blown by the ion wind nozzle 51 through the opening and the built-in porous electrode plate 521, ensuring that the ion wind can cover the surface of the circuit board in a more uniform state, thereby improving the uniformity and effect of static electricity elimination, effectively neutralizing the static electricity charge on the circuit board, and avoiding the problem of incomplete local static electricity elimination caused by uneven distribution of ion wind. The frame plate 520 is generally in the shape of a rectangular plate, and openings corresponding to the plurality of ion wind nozzles 51 are formed on the plate. The shape of these openings is usually adapted to the shape of the outlet of the ion wind nozzle 51, and is mostly circular or square. The frame plate 520 is connected to the electrostatic eliminator body 50 through the hinge plate 522.

[0058] The hinged plate 522 is used to realize the adjustability of the frame plate 520 and the ion nozzle 51 position and angle. When facing different thickness, shape or material of the circuit board, by rotating around the end hinged with the static eliminator body 50, the frame plate 520 and the ion nozzle 51 change the angle and position, so that the ion wind can uniformly act on the surface of the circuit board at a more suitable angle and coverage, improve the adaptability and effect of static elimination, ensure that all kinds of circuit boards can be fully eliminated static, improve product quality and production efficiency. The hinged plate 522 is generally a plate-shaped structure covered at the bottom of the static eliminator body 50, one end of the hinged plate 522 is hinged and connected with the static eliminator body 50 through a hinge, and the other end is provided with a separable connecting assembly 6 between the static eliminator body 50.

[0059] Embodiment 2:

[0060] The embodiment provides an anti-static interference circuit board conveying device, in addition to comprising the technical scheme of the above-mentioned embodiment, further having the following technical features.

[0061] The offset voltage reduction unit 52 comprises:

[0062] The frame plate 520 is arranged below the static eliminator body 50, and a plurality of openings corresponding to the plurality of ion nozzles 51 are formed in the frame plate 520, and a porous electrode plate 521 is arranged in each opening.

[0063] The hinged plate 522 is arranged on the top of the frame plate 520 along the length direction of the static eliminator body 50, and one end of the hinged plate 522 is hinged with one side of the static eliminator body 50.

[0064] Embodiment 3:

[0065] The embodiment provides an anti-static interference circuit board conveying device, in addition to comprising the technical scheme of the above-mentioned embodiment, further having the following technical features.

[0066] The hinged plate 522 and the static eliminator body 50 are provided with a separable connecting assembly 6, and the connecting assembly 6 comprises:

[0067] The first magnet 60 is arranged at the other end of the hinged plate 522.

[0068] The second magnet 61 is arranged on the other side of the static eliminator and connected with the first magnet 60.

[0069] The first magnet 60 is used to cooperate with the second magnet 61 to realize the separable connection between the hinged plate 522 and the static eliminator body 50. The first magnet 60 is usually block-shaped or column-shaped, and is usually fixed to the end of the hinged plate 522 by inlaying, pasting or other connection methods.

[0070] The second magnet 61 cooperates with the first magnet 60 to establish a separable connection between the electrostatic eliminator body 50 and the hinged plate 522. The second magnet 61 is shaped to match the first magnet 60, and is commonly a block, a column, or the like, and is fixed to the electrostatic eliminator body 50 by embedding, pasting, or the like.

[0071] Embodiment 4:

[0072] The anti-static interference circuit board conveying device provided in the embodiment has the following technical features in addition to the technical solutions of the above embodiments.

[0073] The feeding assembly 742 comprises:

[0074] The first lead screw 70 is horizontally arranged in the support frame 40, and the support frame 40 is provided with a first motor 71 for driving the first lead screw 70;

[0075] The mounting plate 72 is arranged below the first lead screw, and an electric telescopic rod 73 for driving the mounting plate 72 to ascend and descend is arranged between the mounting plate 72 and the first lead screw;

[0076] The suction cups 74 are uniformly arranged at the bottom of the mounting plate 72 and are connected to the inside of the mounting plate 72, and the mounting plate 72 is connected to an external vacuum device.

[0077] The first lead screw 70 is used to realize the precise linear motion of the mounting plate 72 in the horizontal direction. The first lead screw 70 is an elongated cylindrical screw structure, and the surface is processed with uniform threads. The first lead screw 70 can be connected to the support frame 40 through a bearing seat, and the bearing seat is fixed to the support frame 40 by bolts. The two ends of the first lead screw 70 are installed in the bearings of the bearing seat. The first lead screw 70 and the first motor 71 that drives it are usually connected by transmission components such as shaft couplings or belt pulleys.

[0078] The mounting plate 72 provides a mounting base for the suction cups 74, allowing the suction cups 74 to be uniformly distributed at the bottom according to a certain layout, so as to stably adsorb the circuit board. On the other hand, through the connection with the first lead screw 70 and the electric telescopic rod 73, the mounting plate 72 can move in the horizontal and vertical directions. The mounting plate 72 is usually a rectangular or square plate structure, and has a cavity connected to the suction cups 74 inside. The mounting plate 72 is also designed with a vacuum channel for communication with the suction cups 74, so that the vacuum suction force generated by the external vacuum device can be transmitted to each suction cup 74 through the vacuum channel, realizing the adsorption function of the circuit board.

[0079] The electric telescopic rod 73 is used to realize the lifting movement of the mounting plate 72 in the vertical direction, which is matched with the horizontal movement of the first screw rod 70. The electric telescopic rod 73 is connected with the first screw rod 70 through a nut pair, the nut is fixed on the mounting plate 72 and matched with the thread of the first screw rod 70, when the first screw rod 70 rotates, the nut drives the electric telescopic rod 73 to move horizontally along the first screw rod 70 in the axial direction. The electric telescopic rod 73 can be connected through welding or bolt connection.

[0080] The suction cup 74 tightly adsorbs the surface of the circuit board by generating vacuum suction force, so that the circuit board can be taken out from the storage box 41 under the driving of the mounting plate 72 and transported stably to the conveyor 2 for placement. The suction cup 74 is connected with the vacuum channel in the mounting plate 72, and the suction cup 74 can be fixed on the bottom of the mounting plate 72 through thread connection or glue sticking.

[0081] Embodiment 5:

[0082] The circuit board conveying device provided in the embodiment is anti-static interference, in addition to the technical solutions of the above embodiments, it has the following technical features.

[0083] The pusher assembly 8 is arranged below the storage box 41, and the pusher assembly 8 comprises:

[0084] The second screw rod is connected to the support frame 40 at one end and provided with a second motor 81 at the other end;

[0085] The push plate 82 is sleeved on the second screw rod, and a plurality of push rods 83 connected with the bottom of the storage box 41 are arranged on the push plate 82.

[0086] The second screw rod is used to realize the linear movement of the push plate 82 in the horizontal direction, and the push plate 82 sleeved thereon is driven to move by the rotation of the second screw rod, so as to push the circuit board in the storage box 41, so that the circuit board can move to the taking position of the feeding assembly 742 in a certain order and rhythm, so as to ensure that the automatic feeding mechanism 4 can continuously and stably obtain the circuit board for subsequent conveying operation, and ensure the continuity of the feeding process. The second screw rod is an elongated cylindrical screw structure, and the surface is processed with threads. One end of the second screw rod is installed on the support frame 40 through a bearing, and the other end is connected with the second motor 81 through a shaft coupling. The second motor 81 can be fixed on the support frame 40 through bolts and the like.

[0087] The push plate 82 is used to provide a mounting position for the push rod 83, so as to ensure that the circuit board can enter the working range of the feeding assembly 742 in an orderly manner, so as to facilitate the feeding assembly 742 to accurately grasp the circuit board for subsequent feeding operation, and maintain the stability and orderliness of the entire automatic feeding process. The push plate 82 is usually a rectangular plate structure, and a threaded hole matched with the second screw rod 80 is arranged in the middle.

[0088] The push rod 83 connects the push plate 82 and the bottom of the storage box 41, so that the push plate 82 can uniformly and stably transmit the pushing force to the circuit board when moving with the help of the push rod 83. The push rod 83 is generally an elongated rod structure, which can be cylindrical, square, etc. The push rod 83 is vertically installed on the push plate 82, and the upper end is connected with the bottom of the storage box 41, and is uniformly distributed on the push plate 82. The push rod 83 and the push plate 82 can be fixed by welding, threaded connection, etc., and the connection with the bottom of the storage box 41 can also be welding, slot cooperation or bolt connection, etc.

[0089] Embodiment 6:

[0090] The circuit board conveying device provided in the embodiment is resistant to electrostatic interference, and in addition to the technical solutions of the above embodiments, has the following technical features.

[0091] The mounting rack 9 is arranged on the frame 1 and covers the conveyor 2. The electrostatic eliminator body 50 is provided with a connecting plate 10 at the top. The connecting plate 10 and the mounting rack 9 are provided with a connecting bracket 11 therebetween.

[0092] The mounting rack 9 is used for mounting and fixing some components related to the auxiliary processing in the circuit board conveying process, such as the electrostatic elimination mechanism 5 and the dust removal mechanism 3, and provides stable mounting positions for these components. The mounting rack 9 is generally a frame structure that spans the frame 1, and the mounting rack 9 and the frame 1 are fixed by bolt connection.

[0093] The connecting plate 10 connects the electrostatic eliminator body 50 and the connecting bracket 11 together, so that the electrostatic eliminator body 50 can be stably mounted on the mounting rack 9. The connecting plate 10 is generally a rectangular or square plate structure, and can be fixed to the top of the electrostatic eliminator body 50 by welding or bolt connection.

[0094] The connecting bracket 11 is used for connecting the electrostatic eliminator body 50 and the mounting rack 9, and plays a role in supporting and adjusting the position and angle of the electrostatic eliminator body 50, so that the electrostatic eliminator body 50 can be stably mounted on the mounting rack 9.

[0095] Embodiment 7:

[0096] The circuit board conveying device provided in the embodiment is resistant to electrostatic interference, and in addition to the technical solutions of the above embodiments, has the following technical features.

[0097] The connecting bracket 11 comprises:

[0098] The lower support plate 110 has a lower part abutting against the top of the connecting plate 10 and an upper part extending upward, and the upper part of the lower support plate 110 is provided with an adjusting arc-shaped groove 111;

[0099] The upper support plate 112 has a lower part abutting against the upper part of the lower support plate 110, and the upper part of the upper support plate 112 is connected with the mounting rack 9, and the lower part of the upper support plate 112 is provided with a threaded hole matched with the adjusting arc-shaped groove 111.

[0100] The lower support plate 110 supports the body 50 of the electrostatic eliminator and adjusts the angle of the body 50 of the electrostatic eliminator by cooperating with the upper support plate 112 through the adjusting arc-shaped groove 111. The lower support plate 110 is in a plate structure, and has a shape of a rectangle or a trapezoid. The lower part of the lower support plate 110 is in contact with the connecting plate 10 to transmit the force from the body 50 of the electrostatic eliminator. The upper part of the lower support plate 110 extends upward to form a certain height, and the extending part is provided with the adjusting arc-shaped groove 111. The adjusting arc-shaped groove 111 is generally in an arc-shaped strip opening. The lower support plate 110 is fixed to the connecting plate 10 by screw connection.

[0101] The upper support plate 112 cooperates with the lower support plate 110 to adjust the angle of the body 50 of the electrostatic eliminator by connecting with the adjusting arc-shaped groove 111 and the threaded hole of the upper support plate 112. On the other hand, the upper support plate 112 is an intermediate part connecting the mounting rack 9 and the lower support plate 110, and stably fixes the whole connecting support 11 on the mounting rack 9 to ensure that the body 50 of the electrostatic eliminator is accurately and stably installed on the mounting rack 9. The upper support plate 112 is also in a plate structure, and has a shape of a rectangle or a similar shape. The lower part of the upper support plate 112 is provided with a threaded hole matched with the adjusting arc-shaped groove 111 of the lower support plate 110. The upper support plate 112 and the lower support plate 110 are connected by screw connection. The screw is passed through the adjusting arc-shaped groove 111 of the lower support plate 110 and screwed into the threaded hole of the upper support plate 112 to realize the angle-adjustable connection.

[0102] Embodiment 8:

[0103] The embodiment provides an anti-static interference circuit board conveying device. In addition to the technical solutions of the above-mentioned embodiments, the embodiment has the following technical features.

[0104] The dust removal mechanism 3 comprises:

[0105] The dust removal roller 30 is arranged in the mounting rack 9, and both ends of the dust removal roller 30 are rotatably connected to the mounting rack 9. A third motor 31 for driving the dust removal roller 30 to rotate is arranged on the mounting rack 9.

[0106] The dust removal brush 32 is sleeved on the dust removal roller 30.

[0107] The dust-removing roller 30 drives the dust-removing brush 32 sleeved outside the dust-removing roller 30 to contact the surface of the circuit board and generate relative friction movement by rotation of the dust-removing roller 30, so as to clean the dust, debris and other small particles attached to the surface of the circuit board, thereby realizing preliminary dust removal of the circuit board. The dust-removing roller 30 has a cylindrical structure, and a solid or hollow rotating shaft is arranged at the center of the dust-removing roller 30. The rotating shaft is used to install bearings and connect the third motor 31, so as to realize the rotation function. The dust-removing roller 30 is rotatably connected to the mounting frame 9 through bearings at both ends of the dust-removing roller 30.

[0108] The dust-removing brush 32 directly contacts the surface of the circuit board, and generates relative movement with the circuit board by rotation of the dust-removing roller 30. The dust-removing brush 32 is used to brush off the dust, debris and other impurities from the surface of the circuit board by friction between the bristles of the dust-removing brush 32 and the surface of the circuit board. The dust-removing brush 32 generally has a cylindrical structure, and is hollow inside, so as to be sleeved on the outer surface of the cylindrical body of the dust-removing roller 30 and tightly contact the dust-removing roller 30, thereby preventing loosening or displacement during rotation. The dust-removing brush 32 can be sleeved on the dust-removing roller 30 by a clamping or clamping connection mode.

[0109] The above embodiments are only preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An electrostatically shielded circuit board conveying device comprising a frame (1) and a conveyor (2) arranged in the frame (1), characterized in that Also includes: Dust removal mechanism (3), provided above the conveyor (2); Automatic feeding mechanism (4), including a support frame (40) provided on one side of the rack (1), a storage box (41) provided on the support frame (40), and a feeding assembly (7) provided on the support frame (40); Static elimination mechanism (5), comprising a static eliminator body (50) provided above the conveyor (2), a plurality of ion air nozzles (51) provided at the bottom of the static eliminator body (50), and a bias voltage reduction unit (52) covering the ion air nozzles (51) and movably connected with the static eliminator body (50); The feeding assembly (7) is used to place the circuit board in the storage box (41) on the conveyor (2).

2. The electrostatically damped circuit board transport of claim 1, wherein, The bias voltage reduction unit (52) comprises: A frame plate (520) is provided below the static eliminator body (50), and a plurality of openings corresponding to the plurality of ion air nozzles (51) are formed in the frame plate (520), and a plurality of porous electrode plates (521) are arranged in the openings; A hinged plate (522) is arranged on the top of the frame plate (520) along the length direction of the static eliminator body (50), and one end of the hinged plate (522) is hingedly connected with one side of the static eliminator body (50).

3. The electrostatically damped circuit board transport of claim 2, wherein, A separable connecting assembly (6) is arranged between the hinged plate (522) and the static eliminator body (50), and the connecting assembly (6) comprises: A first magnet (60) is arranged at the other end of the hinged plate (522); A second magnet (61) is arranged on the other side of the static eliminator body and connected with the first magnet (60).

4. The electrostatic discharge protection circuit board conveying apparatus according to claim 1, wherein The feeding assembly (7) comprises: A first lead screw (70) is horizontally arranged in the support frame (40), and a first motor (71) for driving the first lead screw (70) is arranged on the support frame (40); A mounting plate (72) is arranged below the first lead screw, and an electric telescopic rod (73) for driving the mounting plate (72) to move up and down is arranged between the mounting plate (72) and the first lead screw; Suction cups (74) are uniformly arranged on the bottom of the mounting plate (72) and are connected with the inside of the mounting plate (72), and the mounting plate (72) is connected with an external vacuum device.

5. The electrostatic discharge protection circuit board delivery apparatus according to claim 1, wherein A pushing assembly (8) is arranged below the storage box (41), and the pushing assembly (8) comprises: A second lead screw is connected to the support frame (40) at one end and provided with a second motor (81) at the other end; A push plate (82) is sleeved on the second lead screw, and a plurality of push rods (83) connected with the bottom of the storage box (41) are arranged on the push plate (82).

6. The electrostatic discharge protection circuit board delivery apparatus according to claim 1, wherein An installation frame (9) is arranged on the rack (1) and covers the conveyor (2), a connecting plate (10) is arranged on the top of the static eliminator body (50), and a connecting bracket (11) is arranged between the connecting plate (10) and the installation frame (9).

7. The electrostatic discharge protected circuit board transport of claim 6, wherein: The connecting bracket (11) comprises: A lower bracket plate (110) is arranged on the top of the connecting plate (10) and extends upward, and an adjusting arc-shaped groove (111) is formed in the upper part of the lower bracket plate (110); An upper support plate (112) is in abutment with the lower part and the upper part of the lower support plate (110), the upper part of the upper support plate (112) is connected with the mounting frame (9), and the lower part of the upper support plate (112) is provided with a threaded hole matched with the adjusting arc-shaped slot (111).

8. The electrostatic discharge protected circuit board transport of claim 6, wherein: The dust removal mechanism (3) comprises: A dust removal roller (30) is arranged in the mounting frame (9), both ends of the dust removal roller (30) are rotatably connected in the mounting frame (9), and the mounting frame (9) is provided with a third motor (31) for driving the dust removal roller (30) to rotate; A dust removal brush (32) is sleeved on the dust removal roller (30).

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