CN212646438U - Pressing plate leveling device - Google Patents
Pressing plate leveling device Download PDFInfo
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- CN212646438U CN212646438U CN202020980247.5U CN202020980247U CN212646438U CN 212646438 U CN212646438 U CN 212646438U CN 202020980247 U CN202020980247 U CN 202020980247U CN 212646438 U CN212646438 U CN 212646438U
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Abstract
The embodiment of the utility model relates to a pressing plate leveling device, which comprises a height measuring pressing wheel, a pressing plate mechanism, a control system and a height measuring inductor; the height measuring pinch roller and the pressing plate mechanism are sequentially arranged along the plate moving direction, and the height measuring pinch roller is positioned above the upstream transmission mechanism; the pressing plate mechanism is positioned above a gap between the upstream and downstream transmission mechanisms, a plate walking gap with adjustable height is arranged between the pressing plate mechanism and the transmission plane, and the height of the plate walking gap is consistent with the thickness of the plate to be detected. This clamp plate leveling device detects the height of height finding pinch roller through the height finding inductor, and control system makes the height of clearance unanimous with the thickness of waiting to detect panel between clamp plate mechanism and the transmission plane according to the height information adjustment clamp plate mechanism of height finding pinch roller, can flatten panel in two detection positions through clamp plate leveling device to can prevent to detect time measuring because of the crooked perk deformation influence detection effect of panel.
Description
Technical Field
The embodiment of the utility model provides a relate to slice panel detects technical field, especially relates to a clamp plate leveling device.
Background
In the process of detecting sheet-like products such as a Printed Circuit Board (PCB), since a Board is thin and easily warped, the detection effect is often poor if the Board is not leveled in time.
Taking the online visual inspection of the PCB as an example, in the online visual inspection of the PCB, the output efficiency is improved, the detection capability of the device is also ensured, and it is the basis of the detection to obtain a clear image without deformation. When there is warpage or local deformation of the PCB, problems of image blur and deformation may occur.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve lies in, provides a can prevent that panel from warping when examining the clamp plate leveling device who warp.
In order to solve the technical problem, an embodiment of the present invention provides a pressing plate leveling device, which is located above a plate conveying mechanism, wherein the plate conveying mechanism includes an upstream conveying mechanism and a downstream conveying mechanism, which are sequentially arranged along a plate moving direction, the upstream conveying mechanism and the downstream conveying mechanism are arranged at intervals, and conveying planes of the upstream conveying mechanism and the downstream conveying mechanism are flush, a gap between the upstream conveying mechanism and the downstream conveying mechanism is a first detection position, and one end of the downstream conveying mechanism, which is adjacent to the upstream conveying mechanism, is a second detection position; the pressing plate leveling device comprises a height measuring pressing wheel, a pressing plate mechanism, a control system and a height measuring sensor, wherein the height of the pressing plate mechanism can be adjusted according to height information of the height measuring pressing wheel, and the height measuring sensor is used for detecting the height of the height measuring pressing wheel and feeding the height information back to the control system; the height measuring pinch roller and the pressing plate mechanism are sequentially arranged along the direction of the running plate, the height measuring pinch roller is positioned above the upstream transmission mechanism, and when the running plate passes through the height measuring pinch roller, the height measuring pinch roller is pressed on the upper surface of a plate to be detected; the plate pressing mechanism is located above a gap between the upstream and downstream transmission mechanisms, a plate walking gap with adjustable height is arranged between the plate pressing mechanism and the transmission planes of the upstream and downstream transmission mechanisms, and the height of the plate walking gap is consistent with the thickness of a plate to be detected.
Furthermore, the pressing plate mechanism is a pressing plate belt and comprises a pressing plate driving shaft, a pressing plate driven shaft and a pressing plate belt wound on the pressing plate driving shaft and the pressing plate driven shaft in a transmission mode, and the plate moving gap is located between the pressing plate belt and the transmission planes of the upstream and downstream transmission mechanisms.
Further, the pressing plate mechanism further comprises a pressing plate tensioning shaft used for tensioning the pressing plate belt, and the pressing plate tensioning shaft presses the pressing plate belt above the transmission plane far away from the upstream and downstream transmission mechanisms.
Furthermore, the pressing plate mechanism also comprises a supporting plate body, and the supporting plate body is attached to the upper part of the pressing plate belt close to the transmission planes of the upstream and downstream transmission mechanisms.
Further, the diameter of the pressing plate driving shaft is larger than that of the pressing plate driven shaft.
Furthermore, the pressing plate mechanism is a pressing plate roller and comprises a plurality of roller pressing plate shafts, the roller pressing plate shafts are arranged in parallel, and the walking plate gap is located between the roller pressing plate shafts and the transmission planes of the upstream and downstream transmission mechanisms.
Further, the roller pressing plate shaft synchronously rotates through a synchronous belt.
Further, the pressing plate leveling device further comprises a gap-passing supporting strip, the gap-passing supporting strip is located in a gap between the upstream and downstream conveying mechanisms, and the upper surface of the gap-passing supporting strip is flush with the conveying plane.
Furthermore, the pressing plate leveling device further comprises a feeding guide plate, the feeding guide plate is located above the upstream transmission mechanism and located at the upstream of the height measuring pressing wheel in the plate walking direction, and a guide inclined plane is arranged on the feeding side of the feeding guide plate.
Further, the pressing plate leveling device further comprises a pressing plate strip, the pressing plate strip is located above the downstream conveying mechanism, in the plate moving direction, the pressing plate strip is abutted to the downstream of the pressing plate mechanism, the second detection position is abutted to the downstream of the pressing plate strip, and when the moving plate passes through the pressing plate strip, the pressing plate strip is pressed to the upper surface of the plate to be detected.
Compared with the prior art, the embodiment of the utility model provides a clamp plate leveling device passes through the height that height measurement inductor detected height measurement pinch roller, control system is according to the height of height information adjustment clamp plate mechanism of height measurement pinch roller, make the height in clearance between clamp plate mechanism and the transmission plane unanimous with the thickness of waiting to detect panel, and like this, clamp plate mechanism can press the panel at first detection position, and the second detects the one end of position at neighbouring upper reaches transmission device, thereby can ensure that panel just goes out clamp plate mechanism and just can detect, panel is when the second detects the position, it is difficult for taking place to warp and warp under clamp plate mechanism back end constraint effect, through the utility model discloses clamp plate leveling device can flatten panel two detection positions, thereby can prevent to detect time measuring because of the warp and warp the influence detection effect.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of the present invention.
Figure 2 is a schematic structural view of another preferred embodiment of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the pressing plate leveling device according to the embodiment of the present invention is located above the plate conveying mechanism, and the plate conveying mechanism includes an upstream conveying mechanism 100 and a downstream conveying mechanism 200 sequentially arranged along the plate moving direction. The upstream and downstream transport mechanisms 100, 200 are spaced apart and their transport planes are level. The gap 300 between the upstream and downstream transport mechanisms 100, 200 is a first detection location, and the end of the downstream transport mechanism 200 adjacent to the upstream transport mechanism 100 is a second detection location.
The pressing plate leveling device comprises a height measuring pinch roller 1, a pressing plate mechanism 2, a control system (not shown in the figure) capable of adjusting the height of the pressing plate mechanism according to the height information of the height measuring pinch roller 1, and a height measuring sensor 3 for detecting the height of the height measuring pinch roller 1 and feeding the height information back to the control system.
The height measuring pinch roller 1 and the pressing plate mechanism 2 are sequentially arranged along the board moving direction, the height measuring pinch roller 1 is positioned above the upstream transmission mechanism 100, and when the board moves through the height measuring pinch roller 1, the height measuring pinch roller 1 presses against the upper surface of a board (not shown in the figure) to be detected. The pressing plate mechanism 2 is positioned above a gap 300 between the upstream and downstream transmission mechanisms 100 and 200, a plate walking gap with adjustable height is arranged between the pressing plate mechanism 2 and the transmission planes of the upstream and downstream transmission mechanisms 100 and 200, and the height of the plate walking gap is consistent with the thickness of a plate to be detected.
When a plate to be detected walks on the transmission mechanism, the plate flows in from the incoming material direction A, and when the plate passes below the height measuring pinch roller 1, the height measuring sensor 3 detects the height of the height measuring pinch roller 1 and feeds back the height information to the control system. The control system calculates the thickness of the plate and controls the pressing plate mechanism 2 to automatically lift so as to ensure that the gap between the pressing plate mechanism 2 and the transmission plane is consistent with the thickness of the plate. When the plate enters the gap between the pressing plate mechanism 2 and the transmission plane, the deformed part is pressed flat, and the gap 300 is the first detection position, so that the plate can be detected. When the plate continues to move forward to the second detection position, the plate can be detected again, and at the moment, the plate is still restrained by the rear section of the pressing plate mechanism 2 and the transmission plane, so that the plate can continue to be kept flat.
In this embodiment, the upstream and downstream conveying mechanisms 100 and 200 are both belt type conveying mechanisms, and the plate-moving gap is located between the pressing plate mechanism 2 and the conveying belt. The board is a PCB, the back side and the front side of the PCB are respectively subjected to image scanning at the first detection position and the second detection position, and clear and flat images of the front side and the back side can be obtained (in the figure, an arrow I and an arrow II respectively represent the back side scanning direction and the front side scanning direction). The transmission belt is made of an anti-static material, so that electrostatic adsorption can be prevented from affecting the PCB and electrostatic discharge can be prevented from damaging the PCB.
The embodiment of the utility model provides a clamp plate leveling device passes through height that height measurement inductor 3 detected height-finding pinch roller 1, can avoid influencing height-finding data because of panel deformation, control system is according to height information adjustment clamp plate mechanism 2's height of height-finding pinch roller 1, make the gap height between clamp plate mechanism 2 and the transmission plane unanimous with the thickness of waiting to detect panel, thus, clamp plate mechanism 2 can press the panel at the first position of detecting, and the second detects the one end that the position is at neighbouring upper reaches transmission device 100, thereby can ensure that panel just goes out clamp plate mechanism 2 and just can detect, panel is when the second detects the position, it is difficult for taking place to warp under 2 back ends of clamp plate mechanism and the planar constraint action of transmission. Through the utility model discloses clamp plate leveling device can flatten panel at two detection positions to can prevent to examine time measuring because of the crooked warping deformation of panel influences the detection effect.
To prevent the sheet material from bending downward due to gravity as it passes through the gap 300 between the upstream and downstream transport mechanisms 100, 200, the platen screed apparatus further includes over-seam support strips 4. The slotted support strip 4 is located in the gap 300 between the upstream and downstream transport mechanisms 100, 200, and its upper surface is flush with the transport plane for supporting the sheet material to be inspected. In this embodiment, two seam crossing supporting bars 4 are provided, the two seam crossing supporting bars 4 are disposed at two sides of the gap 300 at intervals, and the first detection position is located between the two seam crossing supporting bars 4.
In addition, in order to avoid the cardboard that takes place when waiting to detect that the panel warps too big, above-mentioned clamp plate leveling device still includes feeding deflector 5. The feeding guide plate 5 is located above the upstream conveying mechanism 100 and is located upstream of the height measuring pinch roller 1 in the board traveling direction. A gap with a large height is formed between the feeding guide plate 5 and the upstream conveying mechanism 100, the feeding side of the feeding guide plate 5 is provided with a guide inclined plane 51, and the feeding guide plate 5 can pre-press and bend a plate with an excessively large height.
The pressing plate flattening device also comprises a pressing plate strip 6, wherein the pressing plate strip 6 is positioned above the downstream conveying mechanism 200, the pressing plate strip 6 is abutted at the downstream of the pressing plate mechanism 2 in the plate moving direction, the second detection position is abutted at the downstream of the pressing plate strip 6, and when the moving plate passes through the pressing plate strip 6, the pressing plate strip 6 is pressed against the upper surface of the plate to be detected. In this embodiment, the pressing strip 6 is a long strip, and includes an upper portion and a lower portion, the upper portion is made of metal material, so that it is not easy to deform, and the detection effect is prevented from being affected, and the lower portion is made of engineering plastic material, so that the plate can be prevented from being scratched when the pressing strip 6 contacts the plate. The upper part and the lower part of the pressing plate strip 6 can be locked together through connecting pieces such as screws, and the easily deformable engineering plastics are straightened by the strength of metal materials. In this embodiment, the distance between the second detection position and the pressing plate strip 6 is less than 5mm, so that it can be ensured that the plate to be detected can be detected just after entering the downstream transmission mechanism 200, and if the distance is too large, the plate is not constrained and is easy to recover and deform, and normal detection cannot be performed.
For the boards with different hardness, the pressing plate mechanism 2 may have a plurality of structural forms, and fig. 1 and 2 show two embodiments of the present invention respectively.
In the embodiment shown in fig. 1, the pressing plate mechanism 2 is a pressing plate belt, and includes a pressing plate driving shaft 21, a pressing plate driven shaft 22, and a pressing plate belt 23 wound around the pressing plate driving shaft 21 and the pressing plate driven shaft 22. The plate moving gap is located between the plate pressing belt 23 and the transmission planes of the upstream and downstream transmission mechanisms 100 and 200, and the plate to be detected can be pressed flat by the plate pressing belt 23 when entering the plate moving gap. The pressing plate belt 23 is made of an anti-static material, so that the plate is prevented from being influenced by electrostatic adsorption and damaged by electrostatic discharge. The pressing plate driving shaft 21 and the pressing plate driven shaft 22 are respectively positioned above the upstream and downstream transmission mechanisms 100 and 200, the diameter of the pressing plate driving shaft 21 is larger than that of the pressing plate driven shaft 22, the diameter of the pressing plate driving shaft 21 is larger, and a plate deformed to a certain degree can be ensured to smoothly enter a plate moving gap.
The platen mechanism 2 further includes a platen tension shaft 24 and a support plate 25. The pressing plate tensioning shaft 24 is pressed above the pressing plate belt 23 far away from the transmission planes of the upstream and downstream transmission mechanisms 100 and 200 and used for tensioning the pressing plate belt 23 to keep the pressing plate belt 23 in a tensioned state and level at the bottom. The support plate 25 is attached to the upper side of the press belt 23 near the conveying plane of the upstream and downstream conveying mechanisms 100, 200, and is used for supporting the press belt 23 and further leveling the bottom of the belt.
In the embodiment shown in fig. 2, the pressing mechanism 2 is a pressing roller, which is suitable for a plate material having a certain hardness. This pressure plate mechanism includes a plurality of gyro wheel pressure plate axles 26, gyro wheel pressure plate axle 26 parallel arrangement, accessible hold-in range 27 synchronous revolution, and the carriage plate gap is located between the transmission plane of gyro wheel pressure plate axle 26 and upper and lower reaches transmission device 100, 200, and the panel that awaits measuring can be flattened by gyro wheel pressure plate axle 26 when getting into the carriage plate gap. In this embodiment, there are three platen roller shafts 26, two of the platen roller shafts 26 are located above the upstream and downstream transport mechanisms 100, 200, respectively, and the other platen roller shaft 26 is located directly above one of the slotted support bars 4.
The following takes PCB on-line visual inspection as an example to introduce the action flow of the pressing plate leveling device:
firstly, the PCB flows in from the incoming material direction A, and when the PCB passes below the feeding guide plate 5, the feeding guide plate 5 performs prepressing on the part of the PCB with overlarge warping; when the PCB passes below the height measuring pinch roller 1, the height measuring sensor 3 detects the height of the height measuring pinch roller 1 and feeds back the height information to the control system; the control system controls the pressing plate mechanism 2 to lift according to the obtained PCB thickness information, and the height of a gap between the pressing plate mechanism 2 and the transmission plane is ensured to be consistent with the thickness of the PCB; when the PCB enters a board moving gap between the pressing plate mechanism 2 and the transmission plane, the deformed part is pressed flat; when the PCB passes through the gap 300 between the upstream and downstream transport mechanisms 100 and 200, the PCB is flattened under the action of the gap-crossing support bar 4 and the pressing plate mechanism 2, and at the first detection position, a CCD (Charge Coupled Device) camera (not shown in the figure) located right below the gap 300 scans the reverse side of the PCB, so as to obtain a clear flat image of reverse side scanning; then, the PCB continues to move forward, the PCB is flattened under the action of the pressing plate strip 6 and the transmission plane of the downstream transmission mechanism 200, and at the second detection position, a CCD camera (not shown in the figure) located above the downstream transmission mechanism 200 performs image scanning on the front surface of the PCB, so as to obtain a clear flat image of the front surface scanning.
Control system is according to the height of height adjustment clamp plate mechanism 2 of height finding pinch roller 1 among the above-mentioned clamp plate leveling device, makes the gap height between clamp plate mechanism 2 and the transmission plane unanimous with the thickness of waiting to detect panel, when waiting to detect that the panel is located first detection position and second and detects the position, and clamp plate mechanism 2 all can press the panel to can prevent to detect time measuring because of the crooked perk deformation influence detection effect of panel.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A pressing plate leveling device is positioned above a plate conveying mechanism, the plate conveying mechanism comprises an upstream conveying mechanism and a downstream conveying mechanism which are sequentially arranged along a plate moving direction, the upstream conveying mechanism and the downstream conveying mechanism are arranged at intervals, conveying planes of the upstream conveying mechanism and the downstream conveying mechanism are flush, a gap between the upper conveying mechanism and the lower conveying mechanism is a first detection position, and one end, adjacent to the upstream conveying mechanism, of the downstream conveying mechanism is a second detection position; the device is characterized in that the pressing plate leveling device comprises a height measuring pinch roller, a pressing plate mechanism, a control system and a height measuring sensor, wherein the control system can adjust the height of the pressing plate mechanism according to the height information of the height measuring pinch roller, and the height measuring sensor is used for detecting the height of the height measuring pinch roller and feeding back the height information to the control system; the height measuring pinch roller and the pressing plate mechanism are sequentially arranged along the direction of the running plate, the height measuring pinch roller is positioned above the upstream transmission mechanism, and when the running plate passes through the height measuring pinch roller, the height measuring pinch roller is pressed on the upper surface of a plate to be detected; the plate pressing mechanism is located above a gap between the upstream and downstream transmission mechanisms, a plate walking gap with adjustable height is arranged between the plate pressing mechanism and the transmission planes of the upstream and downstream transmission mechanisms, and the height of the plate walking gap is consistent with the thickness of a plate to be detected.
2. The platen press leveling device of claim 1 wherein the platen mechanism is a platen belt comprising a platen drive shaft, a platen driven shaft and a platen belt trained about the platen drive shaft and the platen driven shaft, the shoe gap being located between the platen belt and the transport planes of the upstream and downstream transport mechanisms.
3. The platen press leveling device of claim 2 wherein the platen mechanism further includes a platen tensioning shaft for tensioning the platen belt, the platen tensioning shaft pressing over the platen belt away from the plane of conveyance of the upstream and downstream transport mechanisms.
4. The platen press leveling device of claim 2 wherein the platen mechanism further comprises a support plate overlying the platen belt adjacent the transport plane of the upstream and downstream transport mechanisms.
5. The platen press leveling device of claim 2 wherein the platen drive shaft has a diameter greater than the platen driven shaft.
6. The platen press leveling device of claim 1 wherein the platen mechanism is a platen roller comprising a plurality of roller platen shafts, the roller platen shafts being arranged in parallel, the carriage gap being located between the roller platen shafts and the transport planes of the upstream and downstream transport mechanisms.
7. The platen press leveling device of claim 6 wherein the roller platen shaft is synchronized to rotate by a timing belt.
8. The platen press leveling device of any one of claims 1 to 7 further comprising over-slit support strips positioned in the gap between the upstream and downstream transport mechanisms with upper surfaces flush with the transport plane.
9. The platen press leveling device of any one of claims 1 to 7 further comprising a feed guide plate positioned above the upstream transport mechanism and upstream of the height wheel in the direction of the deck, the feed side of the feed guide plate having a guide ramp.
10. The platen press leveling device of any one of claims 1 to 7 further comprising a platen bar positioned above the downstream transport mechanism and abutting downstream of the platen mechanism in a direction of travel, the second sensing location abutting downstream of the platen bar, the platen bar pressing against the upper surface of the sheet material to be inspected as the travel passes the platen bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020980247.5U CN212646438U (en) | 2020-06-02 | 2020-06-02 | Pressing plate leveling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020980247.5U CN212646438U (en) | 2020-06-02 | 2020-06-02 | Pressing plate leveling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212646438U true CN212646438U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020980247.5U Active CN212646438U (en) | 2020-06-02 | 2020-06-02 | Pressing plate leveling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212646438U (en) |
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2020
- 2020-06-02 CN CN202020980247.5U patent/CN212646438U/en active Active
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Address after: 518000 floor 201, 2nd, 3rd and 4th, workshop 2, intersection of binkeng road and Songgang Avenue, Tantou community, Songgang street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen yimeizhi Technology Co.,Ltd. Address before: 518000 floor 201, 2nd, 3rd and 4th, workshop 2, intersection of binkeng road and Songgang Avenue, Tantou community, Songgang street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN YIMEIZHI TECHNOLOGY Co.,Ltd. |