Online detection device for lead frame etching production line

Abstract

The utility model relates to the technical field of lead frame etching detection, and discloses an on-line detection device for a lead frame etching production line, the on-line detection device comprises a conveying rack and a plurality of detection mechanisms fixedly arranged on the conveying rack, and the upper part of the conveying rack is provided with a conveying mechanism for automatically adjusting the scanning angle of a lead frame along the moving direction. The conveying mechanism comprises a conveying roller set, the conveying roller set is sleeved with a conveying belt, translation areas are arranged at the two ends of the upper portion of the conveying belt, and a wave area is arranged in the middle of the upper portion of the conveying belt. And shifting frames for continuously adjusting the lead frame are symmetrically arranged on each inclined surface of the wave area on the upper surface of the conveying belt. The conveying mechanism can drive the lead frame to present different angles below the scanning camera so that the scanning camera can perform automatic and comprehensive scanning detection in the process of driving the lead frame to move, the automation degree is high, the detection is comprehensive, and the precision is high.

Description

Technical Field

[0001] This application relates to the technical field of lead frame etching detection, and in particular to an on-line detection device for a lead frame etching production line. Background Art

[0002] In the developing tank, the DFR on the material surface contacts the developing solution, and the DFR that has not undergone photopolymerization reaction dissolves in the developing solution, exposing the underlying copper material. After passing through the water washing tank, the residual developing solution on the material surface is washed away. After entering the etching tank, the exposed copper material contacts the etching solution and undergoes an oxidation-reduction reaction; the copper material covered by DFR does not contact the etching solution and no reaction occurs. The etched material undergoes pickling and water washing to remove the residual etching solution on the surface. After entering the stripping tank, the DFR that has undergone photopolymerization reaction dissolves in the stripping solution. The material from which DFR has been stripped undergoes pickling and water washing to remove the residual stripping solution on the surface, and then passes through drying to finally obtain the lead frame product.

[0003] In the prior art, in order to reduce the detection difficulty and improve the efficiency, when detecting the etched lead frame, the lead frames etched at the very beginning and the end of the etching are detected.

[0004] Regarding the above related technologies, the inventor believes that during the etching production, due to the abnormal state of the etching machine or the abnormal production in the front-end process, the quality of some lead frame products is abnormal. However, during the etching production, only the first sample and the last sample are inspected for quality, and the quality abnormalities occurring during the intermediate production cannot be detected in time, resulting in the abnormal lead frame products flowing into the next process, and finally making some of the lead frames after production unusable, increasing the overall production cost.

[0005] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0006] In order to solve the problem that only the first and last samples are detected during the traditional lead frame etching production, resulting in incomplete detection, this solution can detect the production quality of lead frame products in real time and timely feedback the production status. If it is found that there are many quality abnormalities in the lead frame products, corresponding adjustment measures can be taken according to the quality abnormality situation, effectively reducing the generation of lead frame products with quality abnormalities and improving the production yield of lead frame products.

[0007] The present application provides an online detection device for a lead frame etching production line, which adopts the following technical solution: an online detection device for a lead frame etching production line, comprising a conveyor frame and a plurality of detection mechanisms fixedly arranged on the conveyor frame, wherein a conveyor mechanism for automatically adjusting the scanning angle of the lead frame along the moving direction is arranged on the upper part of the conveyor frame, wherein the conveyor mechanism comprises a conveyor roller group, wherein a conveyor belt is sleeved on the conveyor roller group, wherein the upper two ends of the conveyor belt are arranged as translation zones, and the upper middle position of the conveyor belt is arranged as a wave zone, and a toggle frame for continuously adjusting the lead frame is symmetrically arranged on each inclined surface of the upper surface of the conveyor belt located in the wave zone.

[0008] Preferably, the conveying frame includes a base fixedly arranged on the ground, and two side panels are symmetrically arranged on the upper part of the base.

[0009] Preferably, the detection mechanism comprises a bracket fixedly arranged on the upper parts of the two side plates, and a scanning camera is arranged on the bracket.

[0010] Preferably, the conveying roller group is composed of a plurality of belt rollers and a plurality of guide rollers, and the plurality of belt rollers and the plurality of guide rollers are rotatably arranged between two side plates, the conveyor belt is sleeved on the surface of the belt roller, and the plurality of guide rollers are symmetrically movable in pairs to abut against the inner and outer edges of the upper surface of the conveyor belt.

[0011] Preferably, the toggle frame includes a connecting frame, a plurality of toggle rods are arranged on the side of the connecting frame, a pressure detection probe is movably arranged at the front end of the toggle rod, a return spring is sleeved on the surface of the pressure detection probe, and the inner and outer plurality of toggle rods are staggeredly distributed on the inclined surface of the toggle area.

[0012] Preferably, a sliding unit is provided at the bottom of the base, and the sliding unit includes a slide rail fixedly provided on the base, two screws are rotatably provided on the slide rail, two sliders with opposite threads are threaded on the two screws, the slider is movably provided on the slide rail, a bidirectional motor is connected between the two screws, and the upper part of the slider is fixedly connected to the connecting frame by a connecting rod.

[0013] Preferably, two limit plates are movably provided on the inclined surface of the toggle zone, the limit plates are fixedly connected to the side plates via connecting rods, and the toggle rods are movably plugged into the limit plates.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. By setting up a conveying mechanism, the conveying mechanism can drive the lead frame to move at different angles below the upper scanning camera so that the scanning camera can perform automatic and comprehensive scanning and detection. The automation level is high and all the lead frames after etching can be detected. The detection is comprehensive and accurate.

[0016] 2. A toggle frame and a sliding unit cooperating with the toggle frame are provided, so that the lead frame can not only change with the moving angle in the wave area, and at the same time, the toggle rod can contact the lead frame to toggle the lead frame to rotate, so that while the lead frame changes with the slope angle of the wave area, it further improves the comprehensiveness of the scanning camera for scanning the lead frame by rotating, provides more comprehensive data for judging whether there are defects in the etching of the lead frame, and thus greatly improves the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the external structure of an embodiment of the application;

[0018] Figure 2 is a schematic diagram of the main cross-sectional structure of an embodiment of the application;

[0019] Figure 3 is a schematic diagram of the external structure of the wave frame in an embodiment of the application.

[0020] Description of reference numerals: 1. Conveyor frame; 2. Detection mechanism; 201. Bracket; 202. Scanning camera; 3. Conveying mechanism; 301. Conveyor roller group; 3011. Belt roller; 3012. Guide roller; 302. Conveyor belt; 303. Translation area; 304. Wave area; 305. Toggle frame; 3051. Connecting frame; 3052. Toggle rod; 3053. Pressure detection probe; 3054. Return spring; 4. Sliding unit; 5. Limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further Figures 1-3 elaborates on this application in detail.

[0022] An embodiment of this application discloses an on-line detection device for a lead frame etching production line. Referring to Figures 1-3 , an on-line detection device for a lead frame etching production line includes a conveyor frame 1 and a plurality of detection mechanisms 2 fixedly arranged on the conveyor frame 1. The conveyor frame 1 includes a base fixedly arranged on the ground, and two side plates are symmetrically installed on the upper part of the base. The detection mechanism 2 includes a bracket 201 welded on the upper parts of the two side plates, and a scanning camera 202 is installed on the bracket 201. A conveying mechanism 3 for automatically adjusting the scanning angle of the lead frame along the moving direction is installed on the upper part of the conveyor frame 1. The conveying mechanism 3 includes a conveyor roller group 301, a conveyor belt 302 is sleeved on the conveyor roller group 301, translation areas 303 are installed at both ends above the conveyor belt 302, a wave area 304 is installed at the middle position above the conveyor belt 302, and toggle frames 305 for continuously adjusting the lead frame are symmetrically installed on each inclined surface of the wave area 304 on the upper surface of the conveyor belt 302.

[0023] By adopting the above technical solution, the conveyor belt 302 cooperates with the conveyor roller group 301 to be wavy, so that the lead frame can move horizontally in the translation area 303, and when passing through the wave area 304, it can be opposite to the scanning camera 202 above at a certain angle, so that the scanning camera 202 can capture some positions that the lead frame cannot scan by translation, thereby providing more comprehensive data for subsequent quality analysis and making the detection more comprehensive and accurate.

[0024] Reference Figures 1-2 The conveying roller group 301 is composed of a plurality of belt rollers 3011 and a plurality of guide rollers 3012. The plurality of belt rollers 3011 and the plurality of guide rollers 3012 are rotatably installed between two side plates. The conveying belt 302 is sleeved on the surface of the belt rollers 3011. The plurality of guide rollers 3012 are symmetrically movable in pairs against the inner and outer edges of the upper surface of the conveying belt 302.

[0025] By adopting the above technical solution, one of the belt rollers 3011 is driven by an external drive motor, and the belt roller 3011 rotates to drive the conveyor belt 302 to move, so that the lead frame first passes through the left end translation area 303 for horizontal scanning, and then passes through the wave area 304 to make the lead frame tilted and transported, so that the upper scanning camera 202 can scan the side blind spots of the lead frame, providing more comprehensive data parameters for the same lead frame.

[0026] Reference Figure 3 The toggle frame 305 includes a connecting frame 3051, and a plurality of toggle rods 3052 are installed on the side of the connecting frame 3051. A pressure detection probe 3053 is movably installed at the front end of the toggle rod 3052, and a reset spring 3054 is sleeved on the surface of the pressure detection probe 3053, and the inner and outer plurality of toggle rods 3052 are staggeredly distributed on the inclined surface of the toggle area. A sliding unit 4 is installed at the bottom of the base. The sliding unit 4 includes a slide rail fixedly arranged on the base, and two screws are rotatably installed on the slide rail. Two sliders with opposite threads are threadedly installed on the two screws. The slider is movably installed on the slide rail, and a bidirectional motor is connected between the two screws. The upper part of the slider is fixedly connected to the connecting frame 3051 through a connecting rod.

[0027] By adopting the above technical solution, the lead frame moves on the conveyor belt 302, and when the edge touches the toggle rod 3052, it can be toggled by the toggle rod 3052, so that the lead frame will not always maintain a tilted posture, and can produce different tilted postures as it touches different toggle rods 3052, so that the scanning camera 202 can capture more pictures, and make a more accurate judgment for the subsequent judgment of the etching quality of the lead frame, and the inner and outer wave frames can be adjusted according to the specific model of the lead frame to ensure that the wave frames can stably touch the lead frame.

[0028] Reference Figure 1 Two limit plates 5 are movably installed on the inclined surface of the toggle area, the limit plates 5 are fixedly connected to the side plates through connecting rods, and the toggle rod 3052 is movably plugged into the limit plates 5.

[0029] By adopting the above technical solution, the lead frame moving in the wave area 304 on the conveyor belt 302 is limited by the limiting plate 5 to ensure that the lead frame is always in the center position of the conveyor belt 302.

[0030] The implementation principle of an online detection device for a lead frame etching production line in an embodiment of the present application is as follows: placing the etched lead frame at one end of a conveyor belt 302, and the conveyor belt 302 is connected to a belt roller 3011 through an external drive motor, so that the conveyor belt 302 drives the lead frame to move, and the scanning camera 202 above scans the translated lead frame, and then when the lead frame moves to the wave area 304, the lead frame tilts with the inclination of the conveyor belt 302, so that the scanning camera 202 above captures more detailed images of the lead frame, and at the same time, when the lead frame moves in the wave area 304, the wave rod at the front end of the wave frame can touch the lead frame, so that the posture of the lead frame changes, so that the lead frame can be captured dynamically by the scanning camera 202, providing more scanning data for subsequent judgment of the quality of the lead frame.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0033] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An on-line detection device for a lead frame etching production line, comprising a conveying frame (1) and a plurality of detection mechanisms (2) fixedly arranged on the conveying frame (1), characterized in that: An upper part of the conveying rack (1) is provided with a conveying mechanism (3) for automatically adjusting the scanning angle of a lead frame along a moving direction. The conveying mechanism (3) includes a conveying roller set (301). A conveyor belt (302) is sleeved on the conveying roller set (301). Two ends above the conveyor belt (302) are set as translation areas (303). A middle position above the conveyor belt (302) is set as a wavy area (304). On each inclined surface of the wavy area (304) on an upper surface of the conveyor belt (302), a toggling frame (305) for continuously adjusting the lead frame is symmetrically arranged.

2. The on-line detection device for a lead frame etching production line according to claim 1, characterized in that: The conveying rack (1) includes a base fixedly arranged on the ground. Two side plates are symmetrically arranged on an upper part of the base.

3. The on-line detection device for a lead frame etching production line according to claim 2, wherein: The detection mechanism (2) includes a bracket (201) fixedly arranged on upper parts of the two side plates. A scanning camera (202) is arranged on the bracket (201).

4. The on-line detection device for a lead frame etching production line according to claim 2, characterized in that: The conveying roller set (301) is composed of a plurality of belt rollers (3011) and a plurality of guide rollers (3012). The plurality of belt rollers (3011) and the plurality of guide rollers (3012) are all rotatably arranged between the two side plates. The conveyor belt (302) is sleeved on a surface of the belt rollers (3011). The plurality of guide rollers (3012) are symmetrically and movably abutted against inner and outer side edges of an upper surface of the conveyor belt (302) in pairs.

5. An on-line detection device for a lead frame etching production line according to claim 4, characterized in that: The toggling frame (305) includes a connecting frame (3051). A plurality of toggling rods (3052) are arranged on a side surface of the connecting frame (3051). A pressure detection probe (3053) is movably arranged at a front end of the toggling rod (3052). A return spring (3054) is sleeved on a surface of the pressure detection probe (3053). The plurality of inner and outer toggling rods (3052) are staggeredly distributed on the inclined surface of the toggling area.

6. The on-line detection device for a lead frame etching production line according to claim 5, characterized in that: A sliding unit (4) is arranged at a bottom of the base. The sliding unit (4) includes a slide rail fixedly arranged on the base. Two screws are rotatably arranged on the slide rail. Two sliders with opposite threads are arranged on the two screws in a threaded manner. The sliders are movably arranged on the slide rail. A bidirectional motor is connected between the two screws. An upper part of the slider is fixedly connected with the connecting frame (3051) through a connecting rod.

7. An on-line detection device for a lead frame etching production line according to claim 5, characterized in that: Two limiting plates (5) are movably arranged on the inclined surface of the toggling area. The limiting plates (5) are fixedly connected with the side plates through connecting rods. The toggling rods (3052) are movably inserted into the limiting plates (5).

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