Printed circuit board (PCB) screening device and equipment thereof

Abstract

The utility model provides a PCB screening device and equipment thereof. The first plate conveying piece and the second plate conveying piece are both arranged on the rack, and a plate conveying channel is formed between the first plate conveying piece and the second plate conveying piece. A PCB bearing area is formed between each first supporting platform and the corresponding second supporting platform, the lifting part is arranged on the rack, the lifting end of the lifting part abuts against the first lifting frame and the second lifting frame, the first lifting frame is in sliding connection with the first board conveying part, the second lifting frame is in sliding connection with the second board conveying part, and the second board conveying part is arranged on the rack. The PCB bearing area is used for bearing defective PCBs on the board conveying channel. The width adjusting driving part is installed on the rack, one end of the width adjusting transmission lead screw is connected with the power output end of the width adjusting driving part, the other end of the width adjusting transmission lead screw is rotationally connected with the rack, the second plate conveying part is in threaded fit connection with the width adjusting transmission lead screw, and the second plate conveying part is in sliding connection with the rack. And the distance between the first plate conveying piece and the second plate conveying piece is adjusted through the width adjusting driving piece.

Description

Technical Field

[0001] This disclosure relates to the field of PCB board manufacturing and processing, and in particular to a PCB board screening device and equipment. Background Technology

[0002] There is a quality inspection step in the PCB board production process. After production, the PCB boards are transported to the quality inspection machine area by conveyor belt for quality inspection, and then the conveyor belt is transported to the next step. When defective products are detected, the conveyor belt needs to be stopped and the defective products need to be removed manually, which reduces the production efficiency of PCB boards.

[0003] To address this issue, Chinese patent CN202121352451.3 proposes a PCB board screening and buffering device and a PCB board conveying device. During the PCB board conveying process, defective PCBs are automatically buffered on each support platform of the lifting frame until all support platforms are filled. The defective PCBs are then removed from the lifting frame. The conveying mechanism does not need to stop during this process, ensuring high PCB board production efficiency. However, the positions of the lifting frames on both sides are fixed, resulting in a fixed width for the PCB board conveying channel. This means the PCB board screening and buffering device can only accommodate PCBs of a single width, leading to poor adaptability. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a PCB board screening device and equipment that can improve PCB board production efficiency while being highly adaptable.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A PCB board screening device includes a frame, a conveying assembly, and a lifting assembly. The conveying assembly includes a first conveying component and a second conveying component, both of which are mounted on the frame. A conveying channel is formed between the first and second conveying components. The lifting assembly includes a first lifting frame, a second lifting frame, and a lifting member. The first lifting frame forms a plurality of spaced-apart first support platforms, and the second lifting frame forms a plurality of spaced-apart second support platforms. A PCB board carrying area is formed between each first support platform and a corresponding second support platform. The lifting member is mounted on the frame, and its lifting end abuts against the first lifting frame and the second lifting frame, respectively. The first lifting frame is slidably connected to the first conveying component, and the second lifting frame is slidably connected to the second conveying component. The PCB board carrying area is used to carry defective PCB boards on the conveying channel.

[0007] The PCB board screening device further includes a width adjustment component, which includes a width adjustment drive and a width adjustment transmission screw. The width adjustment drive is mounted on the frame, one end of the width adjustment transmission screw is connected to the power output end of the width adjustment drive, and the other end of the width adjustment transmission screw is rotatably connected to the frame. The second conveying board is threadedly connected to the width adjustment transmission screw and slidably connected to the frame, so as to adjust the distance between the first conveying board and the second conveying board by means of the width adjustment drive.

[0008] In one embodiment, the first conveying component includes a first conveying frame, a first conveying drive, a first infeed conveyor belt, a first outfeed conveyor belt, and a plurality of first conveying rollers. The first conveying frame is fixed on the machine frame, the first lifting frame is slidably connected to the first conveying frame, the first conveying drive is mounted on one side of the first conveying frame, the first infeed conveyor belt, the first outfeed conveyor belt, and the plurality of first conveying rollers are all mounted on the other side of the first conveying frame, and the first infeed conveyor belt, the first outfeed conveyor belt, and the plurality of first conveying rollers are all rotatably connected to the power wheel end of the first conveying drive.

[0009] In one embodiment, the second conveying component includes a second conveying frame, a second conveying drive, a second infeed conveyor belt, a second outfeed conveyor belt, and a plurality of second conveying rollers. The second conveying frame is slidably connected to the machine frame, and the second lifting frame is slidably connected to the second conveying frame. The second conveying drive is mounted on one side of the second conveying frame, and the second infeed conveyor belt, the second outfeed conveyor belt, and the plurality of second conveying rollers are all mounted on the other side of the second conveying frame. The second infeed conveyor belt, the second outfeed conveyor belt, and the plurality of second conveying rollers are all rotatably connected to the power wheel end of the second conveying drive.

[0010] In one embodiment, the first lifting frame includes a first lifting frame plate and a plurality of first fixing rods. The first lifting frame plate is slidably connected to the first conveying plate component. The plurality of first fixing rods are spaced apart and installed on the first lifting frame plate. Each first fixing rod has a plurality of spaced first protrusions. The plurality of first protrusions on the same horizontal line together form the first support platform.

[0011] In one embodiment, the second lifting frame includes a second lifting frame plate and a plurality of second fixing rods. The second lifting frame plate is slidably connected to the second conveying plate component. The plurality of second fixing rods are spaced apart and installed on the second lifting frame plate. Each second fixing rod has a plurality of spaced second protrusions. The plurality of second protrusions on the same horizontal line together form the second support platform.

[0012] In one embodiment, the lifting component includes a lifting drive component, a lifting transmission screw, and a lifting frame. The lifting drive component is mounted on the frame. One end of the lifting transmission screw is connected to the power output end of the lifting drive component, and the other end of the lifting transmission screw is rotatably connected to the frame. The lifting frame is threadedly connected to the lifting transmission screw, and the lifting frame abuts against the first lifting frame and the second lifting frame, respectively.

[0013] In one embodiment, the lifting component further includes a slide rail, a first electrically driven movable top block, and a second electrically driven movable top block. The slide rail is mounted on the lifting frame. The first electrically driven movable top block and the second electrically driven movable top block are slidably connected to the slide rail. The first electrically driven movable top block abuts against the first lifting frame, and the second electrically driven movable top block abuts against the second lifting frame.

[0014] In one embodiment, the number of slide rail components is multiple, and the number of the first electrically driven moving top block and the second electrically driven moving top block are both multiple.

[0015] In one embodiment, the PCB board screening device further includes a control component, which is communicatively connected to the width adjustment drive, the first board conveying drive, the second board conveying drive, the lifting drive, the first electric drive moving top block, and the second electric drive moving top block.

[0016] A PCB board screening device includes the PCB board screening apparatus described in any of the above embodiments.

[0017] Compared with the prior art, this disclosure has at least the following advantages:

[0018] 1. A conveying channel is formed between the first and second conveying components. After quality inspection, the PCB boards are transported to the next process through the conveying channel. That is, the first and second conveying components are used to transfer the PCB boards. When a defective PCB board is detected, the lifting mechanism is driven to lift it, causing the first and second lifting frames to move upward. This allows the PCB board bearing area to lift the defective PCB board in the conveying channel, while the conveying channel can continue to transport the next PCB board. Furthermore, multiple first support platforms are formed at intervals on the first lifting frame, and multiple second support platforms are formed at intervals on the second lifting frame, thus forming multiple PCB board bearing areas. After batch quality inspection, multiple defective PCB boards can be screened while ensuring continuous transport through the conveying channel, thereby improving the production efficiency of PCB boards.

[0019] 2. Since the second conveyor is threadedly connected to the width-adjusting transmission screw, the output of the width-adjusting drive component can drive the width-adjusting transmission screw to rotate, causing the second conveyor to move closer to or further away from the first conveyor, thereby adjusting the distance between the first and second conveyors, i.e., adjusting the width of the conveying channel. The first conveyor is slidably connected to the first lifting frame, and the second conveyor is slidably connected to the second lifting frame. When adjusting the second conveyor, the position of the second lifting frame is adjusted simultaneously, so that the width of the PCB board carrying area and the width of the conveying channel are adjusted synchronously. This allows the PCB board screening device to adapt to PCB boards of different widths and transportation requirements, thereby effectively improving the adaptability of the PCB board screening device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the PCB board screening device in one embodiment;

[0022] Figure 2 for Figure 1 A partial structural schematic diagram of the PCB board screening device shown.

[0023] Figure 3 for Figure 2 A partial structural schematic diagram of the PCB board screening device shown.

[0024] Figure 4 for Figure 3 A schematic diagram of the PCB board screening device from another perspective;

[0025] Figure 5 for Figure 3 A partial structural schematic diagram of the PCB board screening device shown.

[0026] Figure 6 for Figure 3 A partial structural schematic diagram of the PCB board screening device shown.

[0027] Figure 7 for Figure 3 A partial structural schematic diagram of the PCB board screening device shown.

[0028] Figure 8 for Figure 3 A partial structural schematic diagram of the PCB board screening device shown. Detailed Implementation

[0029] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] This disclosure provides a PCB board screening device including a frame, a conveying assembly, and a lifting assembly. The conveying assembly includes a first conveying component and a second conveying component, both of which are mounted on the frame, forming a conveying channel between them. The lifting assembly includes a first lifting frame, a second lifting frame, and a lifting member. The first lifting frame forms a plurality of spaced-apart first support platforms, and the second lifting frame forms a plurality of spaced-apart second support platforms. A PCB board carrying area is formed between each first support platform and its corresponding second support platform. The lifting member is mounted on the frame, and its lifting end abuts against the first and second lifting frames respectively. The first lifting frame is slidably connected to the first conveying component, and the second lifting frame is slidably connected to the second conveying component. The PCB board carrying area is used to carry defective PCB boards on the conveying channel. The PCB board screening device also includes a width adjustment component, which includes a width adjustment drive and a width adjustment transmission screw. The width adjustment drive is mounted on the frame, one end of the width adjustment transmission screw is connected to the power output end of the width adjustment drive, and the other end of the width adjustment transmission screw is rotatably connected to the frame. The second conveyor is threadedly connected to the width adjustment transmission screw and is slidably connected to the frame so as to adjust the distance between the first conveyor and the second conveyor by means of the width adjustment drive.

[0033] Please see Figures 1 to 8 To better understand the PCB board screening device 10 of this disclosure, the following further explanation of the PCB board screening device 10 is provided:

[0034] One embodiment of the PCB board screening device 10 includes a frame 100, a conveying assembly 200, and a lifting assembly 300. The conveying assembly 200 includes a first conveying component 210 and a second conveying component 220, both of which are mounted on the frame 100. A conveying channel 202 is formed between the first and second conveying components 210 and 220. The lifting assembly 300 includes a first lifting frame 310, a second lifting frame 320, and a lifting lifting member 330. The first lifting frame 310 has a plurality of spaced-apart first support platforms 3110, and the second lifting frame 320 has a first lifting frame 310, a second lifting frame 320, and a lifting member 330. The frame 320 forms a plurality of second support platforms 3210 spaced apart. A PCB board bearing area 302 is formed between each first support platform 3110 and the corresponding second support platform 3210. A lifting member 330 is disposed on the frame 100. The lifting end of the lifting member 330 abuts against the first lifting frame 310 and the second lifting frame 320 respectively. The first lifting frame 310 is slidably connected to the first conveying member 210, and the second lifting frame 320 is slidably connected to the second conveying member 220. The PCB board bearing area 302 is used to bear defective PCB boards on the conveying channel 202. The PCB board screening device 10 also includes a width adjustment component 400, which includes a width adjustment drive component 410 and a width adjustment transmission screw 420. The width adjustment drive component 410 is mounted on the frame 100. One end of the width adjustment transmission screw 420 is connected to the power output end of the width adjustment drive component 410, and the other end of the width adjustment transmission screw 420 is rotatably connected to the frame 100. The second conveyor component 220 is threadedly connected to the width adjustment transmission screw 420 and slidably connected to the frame 100 so as to adjust the distance between the first conveyor component 210 and the second conveyor component 220 by means of the width adjustment drive component 410.

[0035] In this embodiment, a conveying channel 202 is formed between the first conveyor 210 and the second conveyor 220. After quality inspection, the PCB board is conveyed to the next process through the conveying channel 202. That is, the PCB board is transferred through the first conveyor 210 and the second conveyor 220. When a defective PCB board is detected, the lifting member 330 is driven to lift it, which moves the first lifting frame 310 and the second lifting frame 320 upward, so that the PCB board bearing area 302 lifts the defective PCB board in the conveying channel 202. At the same time, the conveying channel 202 can continue to convey the next PCB board. Moreover, by forming multiple first support platforms 3110 with intervals on the first lifting frame 310 and multiple second support platforms 3210 with intervals on the second lifting frame 320, multiple PCB board bearing areas 302 are formed. After batch quality inspection, multiple defective PCB boards can be screened while ensuring continuous transmission through the conveying channel 202, thereby improving the production efficiency of PCB boards.

[0036] Further, since the second plate conveyor 220 is threadedly connected to the width adjustment drive screw 420, by driving the output of the width adjustment drive member 410, the width adjustment drive screw 420 can be rotated, causing the second plate conveyor 220 to approach or move away from the first plate conveyor 210, so as to adjust the distance between the first plate conveyor 210 and the second plate conveyor 220, that is, to adjust the width of the plate conveyor channel 202. The first plate conveyor 210 is slidably connected to the first lifting frame 310, and the second plate conveyor 220 is slidably connected to the second lifting frame 320. When adjusting the second plate conveyor 220, the position of the second lifting frame 320 will be adjusted synchronously, so that the width of the PCB board bearing area 302 is adjusted synchronously with the width of the plate conveyor channel 202, enabling the PCB board screening device 10 to adapt to the screening and transportation requirements of PCB boards of different widths, and thus effectively improving the adaptability of the PCB board screening device 10.

[0037] As Figure 2 , Figure 4 and Figure 5 shown, in one embodiment, the first plate conveyor 210 includes a first plate conveyor frame 2110, a first plate conveyor drive member 2120, a first feeding conveyor belt 2130, a first discharging conveyor belt 2140, and a plurality of first conveyor pulleys 2150. The first plate conveyor frame 2110 is fixed on the machine frame 100, the first lifting frame 310 is slidably connected to the first plate conveyor frame 2110, the first plate conveyor drive member 2120 is installed on one side of the first plate conveyor frame 2110, and the first feeding conveyor belt 2130, the first discharging conveyor belt 2140, and the plurality of first conveyor pulleys 2150 are all installed on the other side of the first plate conveyor frame 2110. The first feeding conveyor belt 2130, the first discharging conveyor belt 2140, and the plurality of first conveyor pulleys 2150 are all rotationally connected to the power runner end of the first plate conveyor drive member 2120. It can be understood that when the first plate conveyor drive member 2120 is turned on, the quality-inspected PCB boards are transported to the plurality of first conveyor pulleys 2150 through the first feeding conveyor belt 2130. When the quality-inspected PCB boards are determined to be qualified, the qualified PCB boards are transmitted to the first discharging conveyor belt 2140 through the plurality of first conveyor pulleys 2150 for transportation to the next process. When the quality-inspected PCB boards are determined to be unqualified, the first lifting member is driven to lift the first lifting frame 310 to lift the unqualified PCB boards, achieving effective screening of the unqualified PCB boards, and at the same time not affecting the transmission of the next quality-inspected PCB board, ensuring the production efficiency of the PCB boards.

[0038] As Figure 2 and Figure 6As shown, in one embodiment, the second PCB board conveying member 220 includes a second conveying frame 2210, a second conveying driving member 2220, a second feeding conveyor belt 2230, a second discharging conveyor belt 2240, and a plurality of second conveying pulleys 2250. The second conveying frame 2210 is slidably connected to the machine frame 100, the second lifting frame 320 is slidably connected to the second conveying frame 2210, the second conveying driving member 2220 is installed on one side of the second conveying frame 2210, and the second feeding conveyor belt 2230, the second discharging conveyor belt 2240, and the plurality of second conveying pulleys 2250 are all installed on the other side of the second conveying frame 2210. The second feeding conveyor belt 2230, the second discharging conveyor belt 2240, and the plurality of second conveying pulleys 2250 are all rotationally connected to the power rotating wheel end of the second conveying driving member 2220. It can be understood that when the second conveying driving member 2220 is turned on, the PCB board after quality inspection is transported to the plurality of second conveying pulleys 2250 through the second feeding conveyor belt 2230. When the PCB board after quality inspection is determined to be qualified, the qualified PCB board is transmitted to the second discharging conveyor belt 2240 through the plurality of second conveying pulleys 2250 for transportation to the next process. When the PCB board after quality inspection is determined to be unqualified, the second lifting member is driven to带动 the second lifting frame 320 to lift the unqualified PCB board, realizing the effective screening of the unqualified PCB board, and at the same time not affecting the transmission of the next PCB board after quality inspection, ensuring the production efficiency of the PCB board.

[0039] As Figure 2 and Figure 5 As shown, in one embodiment, the first lifting frame 310 includes a first lifting frame plate 3120 and a plurality of first fixing rods 3130. The first lifting frame plate 3120 is slidably connected to the first PCB board conveying member 210, and the plurality of first fixing rods 3130 are spaced apart and installed on the first lifting frame plate 3120. A plurality of first bumps 3140 are formed at intervals on each first fixing rod 3130, and the plurality of first bumps 3140 on the same horizontal line together form a first support platform 3110. It can be understood that by installing the plurality of first fixing rods 3130 spaced apart on the first lifting frame plate 3120, the plurality of first bumps 3140 on the same horizontal line together form the first support platform 3110, and the first conveying pulley 2150 can be arranged in the gap between two adjacent first fixing rods 3130 to transport the PCB board on the first support platform 3110 through the plurality of first pulleys, that is, to transport the PCB board in the PCB board conveying channel 2(02), ensuring the normal movement direction of the PCB board. At the same time, the plurality of first support platforms 3110 provide a plurality of temporary storage spaces, realizing the batch screening of unqualified PCB boards without affecting the production efficiency of the PCB board.

[0040] As Figure 2 and Figure 6As shown, in one embodiment, the second lifting frame 320 includes a second lifting frame plate 3220 and a plurality of second fixing rods 3230. The second lifting frame plate 3220 is slidably connected to the second conveying plate member 220. The plurality of second fixing rods 3230 are spaced apart on the second lifting frame plate 3220. Each second fixing rod 3230 has a plurality of spaced second protrusions 3240. The plurality of second protrusions 3240 on the same horizontal line together form the second support platform 3210. It is understandable that by installing several second fixed rods 3230 at intervals on the second lifting frame plate 3220, multiple second protrusions 3240 on the same horizontal line together form the second support platform 3210, and the first conveying roller 2150 can be set in the gap between two adjacent second fixed rods 3230, so that the PCB board on the second support platform 3210 can be transported by several second rollers, that is, the PCB board in the conveying channel 202 can be transported, ensuring the normal direction of the PCB board. At the same time, multiple second support platforms 3210 provide multiple temporary storage spaces, so as to achieve batch screening of unqualified PCB boards without affecting the PCB board production efficiency.

[0041] like Figure 4 and Figure 7 As shown, in one embodiment, the lifting component 330 includes a lifting drive component 3310, a lifting transmission screw 3320, and a lifting frame 3330. The lifting drive component 3310 is mounted on the frame 100. One end of the lifting transmission screw 3320 is connected to the power output end of the lifting drive component 3310, and the other end of the lifting transmission screw 3320 is rotatably connected to the frame 100. The lifting frame 3330 is threadedly connected to the lifting transmission screw 3320, and the lifting frame 3330 abuts against the first lifting frame 310 and the second lifting frame 320 respectively. It is understandable that by driving the output of the lifting drive component 3310, the lifting transmission screw is rotated, causing the lifting frame 3330 to slide up and down within the frame 100. Moreover, the lifting frame 3330 abuts against the first lifting frame 310 and the second lifting frame 320 respectively, so as to drive the first lifting frame 310 and the second lifting frame 320 to move up and down, thereby lifting the unqualified PCB board on the board conveying channel 202 into one of the PCB board bearing areas 302.

[0042] like Figure 3 and Figure 7As shown, in one embodiment, the lifting member 330 further includes a slide rail 3340, a first electrically driven movable top block 3350, and a second electrically driven movable top block 3360. The slide rail 3340 is mounted on the lifting frame 3330. The first electrically driven movable top block 3350 and the second electrically driven movable top block 3360 are both slidably connected to the slide rail 3340. The first electrically driven movable top block 3350 abuts against the first lifting frame 310, and the second electrically driven movable top block 3360 abuts against the second lifting frame 320. It is understandable that by setting the width adjustment component 400, the distance between the first conveyor plate 210 and the second conveyor plate 220 is adjustable. In order to adapt to its width adjustment function, a slide rail 3340 is provided on the lifting frame 3330, and the first electric drive moving top block 3350 and the second electric drive moving top block 3360 are both slidably connected to the slide rail 3340. That is, the first electric drive moving top block 3350 is directly below the position of the first lifting frame 310, and the second electric drive moving top block 3360 is directly below the position of the second lifting frame 320. In this way, precise lifting can be achieved, and its width adjustment function can be adapted.

[0043] like Figures 1 to 8 As shown, in one embodiment, there are multiple slide rail components 3340, and multiple first electrically driven moving top blocks 3350 and second electrically driven moving top blocks 3360. It can be understood that, to improve stability during lifting, in this embodiment, there are two slide rail components 3340, and two first electrically driven moving top blocks 3350 and two second electrically driven moving top blocks 3360. The two first electrically driven moving top blocks 3350 support the first lifting frame 310, and the two second electrically driven moving top blocks 3360 support the second lifting frame 320, effectively improving the stability of the first lifting frame 310 and the second lifting frame 320 during lifting or lowering.

[0044] Furthermore, the number of the first conveyor 210, the second conveyor 220, the first lifting frame 310, the second lifting frame 320, and the width adjustment component 400 is two, which enables dual-track screening and simultaneously adapts to screening two different widths of PCB boards, further improving the adaptability of the PCB board screening device 10.

[0045] like Figures 1 to 8 As shown, in one embodiment, the PCB board screening device 10 further includes a control component, which is communicatively connected to the width adjustment drive 410, the first conveyor drive 2120, the second conveyor drive 2220, the lifting drive 3310, the first electrically driven moving top block 3350, and the second electrically driven moving top block 3360. It is understood that the control component enables the automated screening and width adjustment functions of the PCB board screening device 10, further improving the production efficiency of PCB boards.

[0046] This disclosure also provides a PCB board screening device, including the PCB board screening apparatus described in any of the above embodiments.

[0047] In this embodiment, a conveying channel is formed between the first and second conveying components. After quality inspection, the PCB board is conveyed to the next process through the conveying channel. That is, the PCB board is transferred through the first and second conveying components. When a defective PCB board is detected, a lifting mechanism is driven to lift it, causing the first and second lifting frames to move upward. This allows the PCB board bearing area to lift the defective PCB board in the conveying channel, while the conveying channel can continue to convey the next PCB board. Furthermore, multiple first support platforms are formed at intervals on the first lifting frame, and multiple second support platforms are formed at intervals on the second lifting frame, thus forming multiple PCB board bearing areas. After batch quality inspection, multiple defective PCB boards can be screened while ensuring continuous conveying through the conveying channel, thereby improving the production efficiency of PCB boards.

[0048] Furthermore, since the second conveyor is threadedly connected to the width-adjusting transmission screw, the output of the width-adjusting drive component can drive the width-adjusting transmission screw to rotate, causing the second conveyor to move closer to or further away from the first conveyor, thereby adjusting the distance between the first and second conveyors, i.e., adjusting the width of the conveying channel. The first conveyor is slidably connected to the first lifting frame, and the second conveyor is slidably connected to the second lifting frame. When the second conveyor is adjusted, the position of the second lifting frame is adjusted simultaneously, so that the width of the PCB board carrying area and the width of the conveying channel are adjusted synchronously. This allows the PCB board screening equipment to adapt to PCB boards of different widths and transportation requirements, thereby effectively improving the adaptability of the PCB board screening equipment.

[0049] Compared with the prior art, this disclosure has at least the following advantages:

[0050] 1. A conveying channel is formed between the first and second conveying components. After quality inspection, the PCB boards are transported to the next process through the conveying channel. That is, the first and second conveying components are used to transfer the PCB boards. When a defective PCB board is detected, the lifting mechanism is driven to lift it, causing the first and second lifting frames to move upward. This allows the PCB board bearing area to lift the defective PCB board in the conveying channel, while the conveying channel can continue to transport the next PCB board. Furthermore, multiple first support platforms are formed at intervals on the first lifting frame, and multiple second support platforms are formed at intervals on the second lifting frame, thus forming multiple PCB board bearing areas. After batch quality inspection, multiple defective PCB boards can be screened while ensuring continuous transport through the conveying channel, thereby improving the production efficiency of PCB boards.

[0051] 2. Since the second conveyor is threadedly connected to the width-adjusting transmission screw, the output of the width-adjusting drive component can drive the width-adjusting transmission screw to rotate, causing the second conveyor to move closer to or further away from the first conveyor, thereby adjusting the distance between the first and second conveyors, i.e., adjusting the width of the conveying channel. The first conveyor is slidably connected to the first lifting frame, and the second conveyor is slidably connected to the second lifting frame. When adjusting the second conveyor, the position of the second lifting frame is adjusted simultaneously, so that the width of the PCB board carrying area and the width of the conveying channel are adjusted synchronously. This allows the PCB board screening device to adapt to PCB boards of different widths and transportation requirements, thereby effectively improving the adaptability of the PCB board screening device.

[0052] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A PCB screening device, comprising a rack, a board conveying assembly and a lifting assembly, the board conveying assembly comprising a first board conveying member and a second board conveying member, the first and second board conveying members are arranged on the rack, a board conveying channel is formed between the first and second board conveying members, the lifting assembly comprises a first lifting frame, a second lifting frame and a lifting lifting member, the first lifting frame is formed with a plurality of first support platforms arranged at intervals, the second lifting frame is formed with a plurality of second support platforms arranged at intervals, a PCB board carrying area is formed between each first support platform and the corresponding second support platform, the lifting lifting member is arranged on the rack, the lifting ends of the lifting lifting member are respectively in abutment with the first and second lifting frames, the first lifting frame is in sliding connection with the first board conveying member, the second lifting frame is in sliding connection with the second board conveying member, and the PCB board carrying area is used to carry defective PCB boards on the board conveying channel, characterized in that, Also comprising: a width adjusting assembly, the width adjusting assembly comprising a width adjusting drive and a width adjusting transmission screw, one end of the width adjusting transmission screw being connected with a power output end of the width adjusting drive, the other end of the width adjusting transmission screw being rotatably connected with the frame, the second conveying plate being threadedly connected with the width adjusting transmission screw, the second conveying plate being slidably connected with the frame, so that the distance between the first conveying plate and the second conveying plate is adjusted by the width adjusting drive.

2. The PCB board screening device of claim 1, wherein, The first conveying plate comprises a first conveying plate frame, a first conveying plate drive, a first plate conveying-in belt, a first plate conveying-out belt and a plurality of first conveying pulleys, the first conveying plate frame being fixed on the frame, the first lifting frame being slidably connected with the first conveying plate frame, the first conveying plate drive being mounted on one side of the first conveying plate frame, the first plate conveying-in belt, the first plate conveying-out belt and the plurality of first conveying pulleys being mounted on the other side of the first conveying plate frame, the first plate conveying-in belt, the first plate conveying-out belt and the plurality of first conveying pulleys being rotatably connected with a power rotating end of the first conveying plate drive.

3. The PCB board screening device of claim 2, wherein, The second conveying plate comprises a second conveying plate frame, a second conveying plate drive, a second plate conveying-in belt, a second plate conveying-out belt and a plurality of second conveying pulleys, the second conveying plate frame being slidably connected with the frame, the second lifting frame being slidably connected with the second conveying plate frame, the second conveying plate drive being mounted on one side of the second conveying plate frame, the second plate conveying-in belt, the second plate conveying-out belt and the plurality of second conveying pulleys being mounted on the other side of the second conveying plate frame, the second plate conveying-in belt, the second plate conveying-out belt and the plurality of second conveying pulleys being rotatably connected with a power rotating end of the second conveying plate drive.

4. The PCB board screening device of claim 1, wherein, The first lifting frame comprises a first lifting frame plate and a plurality of first fixing rods, the first lifting frame plate being slidably connected with the first conveying plate, the plurality of first fixing rods being spacedly mounted on the first lifting frame plate, a plurality of first protrusions being formed on each of the first fixing rods, the plurality of first protrusions on the same horizontal line forming the first support platform.

5. The PCB board screening device of claim 1, wherein, The second lifting frame comprises a second lifting frame plate and a plurality of second fixing rods, the second lifting frame plate being slidably connected with the second conveying plate, the plurality of second fixing rods being spacedly mounted on the second lifting frame plate, a plurality of second protrusions being formed on each of the second fixing rods, the plurality of second protrusions on the same horizontal line forming the second support platform.

6. The PCB board screening device of claim 3, wherein, The lifting lifting assembly comprises a lifting drive, a lifting transmission screw and a lifting frame, the lifting drive being mounted on the frame, one end of the lifting transmission screw being connected with a power output end of the lifting drive, the other end of the lifting transmission screw being rotatably connected with the frame, the lifting frame being threadedly connected with the lifting transmission screw.

7. The PCB board screening device of claim 6, wherein, The lifting lifting piece further comprises a sliding rail piece, a first electrically-driven moving top block and a second electrically-driven moving top block, the sliding rail piece is installed on the lifting frame, the first electrically-driven moving top block and the second electrically-driven moving top block are both in sliding connection with the sliding rail piece, the first electrically-driven moving top block is in abutment with the first lifting frame, the second electrically-driven moving top block is in abutment with the second lifting frame, and the lifting frame is in abutment with the first lifting frame and the second lifting frame respectively.

8. The PCB board screening device of claim 7, wherein, The number of the sliding rail pieces is multiple, and the number of the first electrically-driven moving top blocks and the second electrically-driven moving top blocks is multiple.

9. The PCB board screening device of claim 7, wherein, The control assembly is further included, and the control assembly is in communication connection with the width-adjusting driving piece, the first conveying plate driving piece, the second conveying plate driving piece, the lifting driving piece, the first electrically-driven moving top block and the second electrically-driven moving top block respectively.

10. A PCB board screening apparatus, characterized by, The PCB screening device of any one of claims 1-9 is included.

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