Copper foil surface coating treatment device for lead frame processing

By designing a copper foil surface plating treatment device including a main structure, air supply structure and spray structure, the limitations of copper foil spraying efficiency and drying links in the prior art are solved, and efficient spraying and uniform drying of copper foil on both sides is realized, and production efficiency and coating quality are improved.

CN119926729AActive Publication Date: 2025-05-06TAIXING LONGTENG ELECTRONICS CO LTD

Patent Information

Application Number
CN202510442620.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2025-05-06
Estimated Expiration
2045-04-10

AI Technical Summary

Technical Problem

The existing copper foil surface plating treatment devices have limitations in the spray efficiency and drying process, and cannot achieve efficient double-sided spraying and uniform drying, resulting in low production efficiency and poor coating quality.

Method used

A copper foil surface plating treatment device including a main structure, a air supply structure and a spray structure is designed. The double-sided spraying of the copper foil is realized through the secondary direction guidance of the main structure, and the air supply structure is used for blow-air drying to ensure that the copper foil remains flat and the coating is uniform during the spraying process.

Benefits of technology

It realizes efficient spraying and uniform drying of copper foil on both sides, reduces repeated operations, improves production efficiency, and ensures the quality of the coating and continuous production process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of copper foil anti-corrosion spraying equipment, and particularly discloses a copper foil surface coating treatment device for lead frame processing, which comprises a main body structure, an air supply structure and a spraying structure, the air supply structure is fixedly arranged on the main body structure, and the spraying structure is fixedly arranged on the main body structure; the main body structure is used for bearing and guiding copper foils, the air supply structure is used for drying the copper foils, and the spraying structure is used for conducting double-face spraying on the copper foils. The double-face spraying device has the beneficial effects that the spraying efficiency is improved, double-face spraying, quick drying through air blowing, width adjustment or single-piece copper foil spraying processing are achieved, the requirements of products of various specifications are met, and the production efficiency is improved. The universality of the equipment is improved; and moreover, manual operation is reduced through automatic spraying and drying, and the labor cost is reduced.
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Description

Technical Field

[0001] The invention relates to the technical field of copper foil anti-corrosion spraying equipment, in particular to a copper foil surface coating treatment device for lead frame processing. Background Art

[0002] In the field of modern electronic manufacturing, the performance of lead frames, as the key supporting structure of electronic components, is crucial to the stability and reliability of electronic equipment. Copper foil has become a common material for manufacturing lead frames due to its excellent electrical conductivity, thermal conductivity and good mechanical properties. However, during processing and use, copper foil is easily corroded by environmental factors, causing oxidation, corrosion and other problems, which in turn affect the electrical performance and service life of the lead frame. Therefore, plating the surface of copper foil to enhance its anti-corrosion performance has become a key link in lead frame processing.

[0003] At present, the existing copper foil surface coating treatment devices have many limitations in practical applications. In terms of spraying efficiency, most traditional equipment can only achieve single-sided spraying. If double-sided spraying is to be completed, it is necessary to manually turn it over or use a complex multi-station conversion mechanism, which not only increases the operating procedures and time costs, but also easily leads to production interruptions, making it difficult to meet large-scale, high-efficiency production needs. In the drying process, some equipment lacks special drying devices and relies on natural drying, which is extremely inefficient; even if the equipment has a drying function, it mostly uses a simple hot air direct blowing method, which is uneven in drying and easily causes the copper foil to be contaminated by dust and other impurities when the coating is not dry, affecting the coating quality. Summary of the invention

[0004] The object of the present invention is to provide a copper foil surface plating treatment device for lead frame processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a copper foil surface plating processing device for lead frame processing, comprising a main structure, an air supply structure and a spraying structure; the air supply structure is fixedly arranged on the main structure, and the spraying structure is fixedly arranged on the main structure; the main structure is used to carry and guide the copper foil, the air supply structure is used to dry the copper foil, and the spraying structure is used to spray the copper foil on both sides.

[0006] Preferably, the main structure includes a spray box, a box cover, two pairs of first roller frames, two pairs of first guide rollers, a pair of second guide rollers, a second roller frame, a third guide roller and a pressing assembly; the spray box is a rectangular box without a front wall, and a pair of conveying ports are symmetrically opened in the middle of the left side wall of the spray box, the box cover can be detachably buckled on the front side of the spray box, and the box cover is opened with a socket, one end of a pair of first roller frames are symmetrically arranged on the rear side wall of the spray box and close to the two corners of the top, and the other end of the first roller frame is located above the spray box, and one end of another pair of first roller frames are fixedly arranged It is placed at the left end of the rear wall of the spray box and corresponds to the conveying ports respectively. Two pairs of the first guide rollers are movably set on the first roller frame, a pair of the second guide rollers are symmetrically set on the rear wall inside the spray box and close to the right side wall, a pair of the second guide rollers correspond to the conveying ports respectively, one end of the second roller frame is obliquely set on the rear wall of the spray box and located at the left end, and the other end of the second roller frame is located on the left side of the spray box. The third guide roller is movably set on the second roller frame, and the third guide roller is located between the conveying ports. The pressing assembly is fixedly set on the front wall of the box cover and close to the right end.

[0007] Preferably, the pressing assembly includes a limit seat, a third roller frame, a lower pressing roller, a force rod and a spring; the limit seat is concave, the limit seat is fixedly arranged on the front side arm of the box cover, one end of the third roller frame movably passes through the middle of the top end of the limit seat, the lower pressing roller is movably arranged on the other end of the third roller frame, and the lower pressing roller is attached to the upper wall of the spray box, one end of the force rod movably passes through the bottom end of the limit seat and is screwed into one end of the third roller frame, the spring is movably sleeved on the other end of the force rod, and the spring applies force to drive the lower pressing roller to press downward.

[0008] Preferably, the air supply structure includes a pair of support plates, a pair of first diverters, a bellows and a fan; one end of a pair of the support plates are detachably mounted on the left side wall of the spray box, and are respectively located below the conveying port; a pair of the first diverters are respectively fixedly arranged on the other end of the support plates, and a plurality of blowing outlets are equidistantly arranged on the upper wall of the first diverter; the bellows is fixedly arranged on the right side wall of the spray box, and an electric heating plate is arranged in the bellows; one end of the fan is fixedly connected to the air outlet end of the bellows, and the blowing end of the fan is connected to the first diverter through a first pipe, and the first pipes respectively pass through the rear side wall of the spray box.

[0009] Preferably, the spraying structure includes a spray rack, two pairs of bearings, a material pump, a pair of second flow diverters, a plurality of first sockets and a pair of spraying components; one end of the spray rack is fixed with a socket that passes through the box cover, and the two ends of the spray rack are respectively located above the spray box and above the delivery port, and the right side walls at both ends of the spray rack are provided with trapezoidal first slots, the two pairs of bearings are respectively fixedly embedded in the two ends of the spray rack, the material pump is fixedly arranged on the front side wall of the spray rack, a pair of the second flow diverters are respectively fixedly arranged on the two ends of the spray rack and are located in front of the bearings, a pair of the second flow diverters are equidistantly arranged with a plurality of valves, a pair of the second flow diverters are respectively connected to the discharge end of the material pump through a second pipe, one end of the plurality of the first sockets are respectively movably inserted in the first slots, and a pair of the spraying components are respectively symmetrically arranged on the two ends of the spray rack.

[0010] Preferably, the spray assembly includes a pair of shaft tubes, a pair of gears, a motor, a pair of swing arms, a number of second sockets and a number of spray heads; one end of a pair of the shaft tubes are respectively fixedly inserted in the middle of the bearing, a pair of the gears are respectively fixedly sleeved on the other end of the shaft rod and are located below the bearing, the motor is fixedly arranged on the upper wall of one end of the spray rack, and the motor driving end is connected to one end of one of the shaft tubes, a pair of the swing arms are both L-shaped, one end of a pair of the swing arms are respectively fixedly sleeved on the other end of the shaft tube and are located below the gears, a pair of the swing arms are each provided with a cross-shaped second slot in the middle of the other end, a number of the second sockets are respectively movably inserted in the second slots, a number of the spray heads are respectively detachably screwed in the middle of the second socket and the other end of the first socket, and a number of the spray heads are respectively connected to the valve of the second diverter through a third pipe.

[0011] Preferably, tightening bolts are screwed onto the second socket and the first socket, and the second socket and the first socket are fixed by top bolts.

[0012] Preferably, the third guide roller and the lower pressure roller are used for output and input, respectively.

[0013] The present invention proposes a copper foil surface coating treatment device for lead frame processing, which has the following beneficial effects: the copper foil being conveyed can be guided in a secondary direction by the main structure of the scheme, and cooperates with the spraying structure to realize double-sided spraying of the copper foil before and after the guidance, and blows and dries before the guidance after single-sided spraying, which does not affect the conveying and winding; secondly, the spraying structure can be used to adjust the spraying width range according to copper foils of different widths to improve the applicability; at the same time, the pressing component in the main structure can be used to fix a single copper foil and spray it on a single piece, thereby improving the applicability, thereby achieving the following effects: 1. Through secondary directional guidance, double-sided spraying of copper foil is achieved, which reduces repeated operations and improves production efficiency. Spraying and drying are completed during the conveying process without interrupting the winding process, ensuring the continuity of the production process.

[0014] 2. Ensure that the copper foil remains flat during the spraying process through secondary guiding to avoid wrinkles or deformation and achieve uniform spraying. Blow dry immediately after single-sided spraying to prevent the coating from being contaminated or damaged before it dries, thus ensuring the coating quality.

[0015] 3. The spraying structure can be adjusted according to the copper foil of different widths to meet the needs of products of various specifications, improve the versatility of the equipment, and fix the single copper foil by pressing down the component, which is suitable for small batches or special specifications of copper foil spraying, expanding the application range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the assembly structure of the present invention; Figure 2 It is a schematic diagram of the split structure of the main structure of the present invention; Figure 3 It is a schematic diagram of the main structure assembly structure of the present invention; Figure 4 It is a schematic diagram of the split structure of the air supply structure of the present invention; Figure 5 It is a schematic diagram of the split structure of the spraying structure of the present invention; Figure 6 A schematic diagram showing the structure of the spraying component is enlarged; Figure 7 It is a schematic diagram of the assembly structure of the spraying structure; Figure 8 for Figure 2 A local enlarged view of point A in FIG. Fig. 9 for Figure 5 A local enlarged view of point B in FIG. Fig.10 for Figure 5 A local enlarged view of point C in FIG. Fig.11 A schematic diagram showing the structure for the conveying direction.

[0017] In the figure: 1. main structure; 11. spray box; 12. box cover; 13. first roller frame; 14. first guide roller; 15. second guide roller; 16. second roller frame; 17. third guide roller; 18. pressing assembly; 181. limit seat; 182. third roller frame; 183. pressing roller; 184. force rod; 185. spring; 2. air supply structure; 21. support plate; 22. first diverter; 23. bellows; 24. fan; 3. spray structure; 31. spray frame; 32. bearing; 33. material pump; 34. second diverter; 35. first socket; 36. spray assembly; 361. shaft tube; 362. gear; 363. motor; 364. swing arm; 365. second socket; 366. nozzle; 4. first slot; 5. second slot; 6. tightening bolt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 11 The present invention provides a technical solution: a copper foil surface plating processing device for lead frame processing, comprising a main structure 1, an air supply structure 2 and a spraying structure 3; the air supply structure 2 is fixedly arranged on the main structure 1, and the spraying structure 3 is fixedly arranged on the main structure 1; the main structure 1 is used to carry and guide the copper foil, the air supply structure 2 is used to dry the copper foil, and the spraying structure 3 is used to spray the copper foil on both sides.

[0020] As a preferred solution, further, Figure 1 , Figure 2 and Figure 3 As shown, the main structure 1 includes a spray box 11, a box cover 12, two pairs of first roller frames 13, two pairs of first guide rollers 14, a pair of second guide rollers 15, a second roller frame 16, a third guide roller 17 and a pressing assembly 18; the spray box 11 is a rectangular box without a front wall, and a pair of conveying ports are symmetrically opened in the middle of the left side wall of the spray box 11, the box cover 12 can be detachably buckled on the front side of the spray box 11, and the box cover 12 is opened with a socket, one end of a pair of first roller frames 13 are symmetrically arranged on the rear side wall of the spray box 11 and close to the two corners of the top, and the other end of the first roller frame 13 is located above the spray box 11, one end of another pair of first roller frames 13 are fixedly arranged on the left end of the rear side wall of the spray box 11 and respectively correspond to the conveying ports, two pairs of first guide rollers 14 are movably arranged on the first roller frame 13, and a pair of second guide rollers 15 are symmetrically arranged on the inner rear side of the spray box 11 The second guide rollers 15 are respectively corresponding to the conveying ports, one end of the second roller frame 16 is obliquely arranged on the rear wall of the spray box 11 and is located at the left end, the other end of the second roller frame 16 is located on the left side of the spray box 11, the third guide roller 17 is movably arranged on the second roller frame 16, and the third guide roller 17 is located between the conveying ports, and the pressing assembly 18 is fixedly arranged on the front wall of the box cover 12 and close to the right end; the copper foil is input from the top right side of the spray box 11 through the first guide roller 14 on the first roller frame 13, and then guided downward by the first guide roller 14 at the top of the left end, and guided to the right by the first guide roller 14 below to enter the spray box 11, and then guided downward and left by the two second guide rollers 15 on the right side of the spray box 11 to be transported out of the spray box 11, and finally guided upward by the third guide roller 17, and the copper foil is stabilized by the pressing assembly 18 when it is input from the right end.

[0021] As a preferred solution, further, Figure 2 and Figure 8 As shown, the pressing assembly 18 includes a limit seat 181, a third roller frame 182, a lower pressing roller 183, a force rod 184 and a spring 185; the limit seat 181 is concave, the limit seat 181 is fixedly arranged on the front side arm of the box cover 12, one end of the third roller frame 182 is movable through the middle of the top of the limit seat 181, the lower pressing roller 183 is movably arranged on the other end of the third roller frame 182, and the lower pressing roller 183 is attached to the upper wall of the spray box 11, and one end of the force rod 184 is movable through the bottom end of the limit seat 181 It is screwed into one end of the third roller frame 182, and the spring 185 is movably mounted on the other end of the force rod 184, and the spring 185 applies force to drive the lower pressure roller 183 to press down; the force rod 184 drives one end of the third roller frame 182 to descend through the force of the spring 185, causing the lower pressure roller 183 on the other end of the third roller frame 182 to descend and fit the upper wall of the spray box 11, and the third guide roller 17 and the lower pressure roller 183 are used for output and input respectively, so as to realize double-sided spraying after copper foil guidance according to design requirements.

[0022] As a preferred solution, further, Figure 4 As shown, the air supply structure 2 includes a pair of support plates 21, a pair of first diverters 22, a bellows 23 and a fan 24; one end of a pair of support plates 21 are detachably mounted on the left side wall of the spray box 11, and are respectively located below the conveying port; a pair of first diverters 22 are respectively fixedly arranged on the other end of the support plates 21, and a plurality of blowing ports are equidistantly arranged on the upper wall of the first diverter 22; the bellows 23 are fixedly arranged on the right side wall of the spray box 11, and an electric heating plate is arranged in the bellows 23; one end of the fan 24 is fixedly connected to the air outlet end of the bellows 23, and the blowing end of the fan 24 is respectively connected to the first diverter 22 through a first pipe, and the first pipe passes through the rear side wall of the spray box 11; wind force is generated by the fan 24, so that the external wind force is prompted to enter the bellows 23 to heat up and blow to the first diverter 22 on the support plate 21 to realize synchronous blowing at multiple points.

[0023] As a preferred solution, further, Figure 5 and Figure 7As shown, the spraying structure 3 includes a spray rack 31, two pairs of bearings 32, a material pump 33, a pair of second diverters 34, a plurality of first sockets 35 and a pair of spraying components 36; one end of the spray rack 31 is fixedly connected to the socket of the box cover 12, and the two ends of the spray rack 31 are respectively located above the spray box 11 and above the delivery port, and the right side walls at both ends of the spray rack 31 are provided with a trapezoidal first slot 4, the two pairs of bearings 32 are respectively fixedly embedded in the two ends of the spray rack 31, the material pump 33 is fixedly arranged on the front side wall of the spray rack 31, and the pair of second diverters 34 are respectively fixedly arranged Placed on both ends of the spray rack 31 and in front of the bearing 32, a pair of second diverters 34 are equidistantly provided with a plurality of valves, a pair of second diverters 34 are respectively connected to the discharge end of the material pump 33 through a second pipeline, one end of a plurality of first sockets 35 are respectively movably inserted into the first slot 4, a pair of spraying assemblies 36 are respectively symmetrically arranged on both ends of the spray rack 31; a pair of spraying assemblies 36 are installed through the spray rack 31 to spray different wall surfaces of the copper foil respectively, and the spraying material is supplied through the material pump 33 and diverted with the help of the second diverter 34.

[0024] As a preferred solution, further, Figure 6 , Fig. 9 and Fig.10 As shown, the spray assembly 36 includes a pair of shaft tubes 361, a pair of gears 362, a motor 363, a pair of swing arms 364, a plurality of second sockets 365 and a plurality of spray heads 366; one end of the pair of shaft tubes 361 is fixedly inserted in the middle of the bearing 32, a pair of gears 362 is fixedly sleeved on the other end of the shaft rod and is located below the bearing 32, the motor 363 is fixedly arranged on the upper wall of one end of the spray rack 31, and the driving end of the motor 363 is connected to one end of one of the shaft tubes 361, the pair of swing arms 364 are both L-shaped, one end of the pair of swing arms 364 is fixedly sleeved on the other end of the shaft tube 361 and is located below the gear 362, the middle of the other end of the pair of swing arms 364 is provided with a cross-shaped second slot 5, a plurality of second sockets 365 are movably inserted in the second slot 5, and a plurality of The spray heads 366 are detachably screwed to the middle of the second socket 365 and the other end of the first socket 35, and several spray heads 366 are connected to the valve of the second diverter 34 through the third pipe. The motor 363 drives one of the shaft tubes 361 to rotate with the help of the bearing 32, and when the gear 362 rotates, the two gears 362 are relatively engaged and rotate synchronously in the opposite direction, thereby driving the swing arm 364 to rotate relative to or towards each other to achieve spraying in different ranges, and the spraying distance and position can move the first socket 35 and the second socket 365 to adjust the position of the spray head 366. The second socket 365 and the first socket 35 are screwed with tightening bolts 6, and the second socket 365 and the first socket 35 are fixed with top bolts for fixing and adjusting the position requirements.

[0025] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0026] S1. First, after the equipment is powered on, the copper foil in production or the copper foil being rolled and transported is input from the first guide roller 14 on the first roller frame 13 at the top of the right end of the spray box 11, that is, it is transported from the right end of the spray box 11 to the left, and the third roller frame 182 in the pressing assembly 18 is manually lifted, and the pressing roller 183 is lifted and raised with the help of the limit seat 181, so that the pressing roller 183 is pressed on the top of the copper foil, and the copper foil is pressed down to a limit position, and the pressing roller 183 is pressed down with the help of the spring 185 on the force rod 184; S2. Secondly, the copper foil is passed from above the first guide roller 14 at the top of the left end of the spray box 11 and guided downward to the position of the first guide roller 14 below, and is guided to the right through one of the conveying ports to enter the spray box 11, and then guided downward to another second guide roller 15 through the second guide roller 15 corresponding to the right side of the first conveying port, and finally guided to the left through another conveying port and the corresponding first guide roller 14 by another second guide roller 15, and then guided out and conveyed by the third guide roller 17 on the second roller frame 16, so as to realize conveying from right to left, and the copper foil is turned over through reciprocating left and right guidance; S3. Then the material pump 33 in the spraying structure 3 is connected to the feeder to extract the spraying material, and the second diverter 34 is respectively supplied to the corresponding nozzle 366 for spraying, and the spraying components 36 are symmetrically arranged at both ends of the concave spray rack 31 to achieve double-sided spraying of the guided copper foil; S4. The copper foil is sprayed on one of the upper walls of the spray box 11 when entering the spray box 11, and the other side is sprayed when transported to the right; S5. After the sprayed copper foil is conveyed by means of a guide, the sprayed wall surfaces are respectively opposite to the first diverters 22 on the corresponding pallet 21, and then heated by means of a bellows 23, and hot air is delivered by means of a fan 24, and finally a certain width of blowing is achieved through the first diverter 22 for drying; S6. During the processing of the copper foil, the motor 363 can be controlled according to the demand to drive one of the shaft tubes 361 to rotate in the bearing 32, and the gears 362 on the shaft tube 361 are relatively engaged to realize the synchronous and reverse rotation of the two gears 362, that is, to realize the relative flipping or reverse flipping of the swing arms 364 arranged relatively, and as the angle of the swing arms 364 changes, the spraying position and the spraying width range of the nozzle 366 on the second socket 365 are adjusted; and the nozzle 366 installed through the first socket 35 is located between the swing arms 364 to fill the vacant range between the swing arms 364 for spraying, such as Fig.11 The spray range shown is displayed; S7. Since the second socket 365 and the second socket 365 can be moved in the second slot 5 and the first slot 4 to adjust the position and the spraying interval respectively, the spray head 366 can be docked or staggered in the spraying range to prevent spraying leakage, and can be fixed by the tightening bolt 6 after moving.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper foil surface plating treatment device for lead frame processing, characterized in that: The invention comprises a main structure (1), an air supply structure (2) and a spraying structure (3); the air supply structure (2) is fixedly arranged on the main structure (1), and the spraying structure (3) is fixedly arranged on the main structure (1); the main structure (1) is used for carrying and guiding the copper foil, the air supply structure (2) is used for drying the copper foil, and the spraying structure (3) is used for spraying the copper foil on both sides.

2. The copper foil surface plating treatment device for lead frame processing according to claim 1, characterized in that: The main structure (1) comprises a spray box (11), a box cover (12), two pairs of first roller frames (13), two pairs of first guide rollers (14), a pair of second guide rollers (15), a second roller frame (16), a third guide roller (17) and a pressing assembly (18); The spray box (11) is a rectangular box without a front wall, and a pair of conveying ports are symmetrically opened in the middle of the left side wall of the spray box (11). The box cover (12) can be detachably buckled on the front side of the spray box (11), and the box cover (12) is opened with a socket. One end of a pair of first roller frames (13) are symmetrically arranged on the rear side wall of the spray box (11) and close to the two corners of the top, and the other end of the first roller frame (13) is located above the spray box (11), and one end of another pair of first roller frames (13) are fixedly arranged on the left end of the rear side wall of the spray box (11) and respectively correspond to the conveying ports. The two pairs of the first guide rollers (14) are respectively The second guide rollers (15) are symmetrically arranged on the rear side wall of the spray box (11) and close to the right side wall. The second guide rollers (15) correspond to the conveying ports. One end of the second roller frame (16) is obliquely arranged on the rear side wall of the spray box (11) and is located at the left end. The other end of the second roller frame (16) is located on the left side of the spray box (11). The third guide roller (17) is movably arranged on the second roller frame (16), and the third guide roller (17) is located between the conveying ports. The pressing assembly (18) is fixedly arranged on the front side wall of the box cover (12) and close to the right end.

3. The copper foil surface plating treatment device for lead frame processing according to claim 2, characterized in that: The pressing assembly (18) comprises a limiting seat (181), a third roller frame (182), a pressing roller (183), a force application rod (184) and a spring (185); The limiting seat (181) is concave, and the limiting seat (181) is fixedly arranged on the front side arm of the box cover (12). One end of the third roller frame (182) is movably arranged to pass through the middle of the top end of the limiting seat (181). The lower pressure roller (183) is movably arranged on the other end of the third roller frame (182), and the lower pressure roller (183) is attached to the upper wall of the spray box (11). One end of the force rod (184) is movably arranged to pass through the bottom end of the limiting seat (181) and is screwed into one end of the third roller frame (182). The spring (185) is movably sleeved on the other end of the force rod (184), and the spring (185) applies force to drive the lower pressure roller (183) to press downward.

4. The copper foil surface plating treatment device for lead frame processing according to claim 3, characterized in that: The air supply structure (2) comprises a pair of support plates (21), a pair of first flow dividers (22), a wind box (23) and a fan (24); One end of a pair of the support plates (21) is detachably mounted on the left side wall of the spray box (11) and is respectively located below the delivery port. A pair of the first diverters (22) are respectively fixedly mounted on the other end of the support plates (21), and a plurality of air blowing ports are equidistantly arranged on the upper wall of the first diverter (22). The bellows (23) is fixedly mounted on the right side wall of the spray box (11), and an electric heating plate is arranged in the bellows (23). One end of the fan (24) is fixedly connected to the air outlet end of the bellows (23), and the air blowing end of the fan (24) is respectively connected to the first diverter (22) through a first pipe, and the first pipe passes through the rear side wall of the spray box (11).

5. The copper foil surface plating treatment device for lead frame processing according to claim 4, characterized in that: The spraying structure (3) comprises a spraying frame (31), two pairs of bearings (32), a material pump (33), a pair of second flow dividers (34), a plurality of first sockets (35) and a pair of spraying components (36); One end of the spray rack (31) is fixedly provided with a socket penetrating through the box cover (12), and the two ends of the spray rack (31) are respectively located above the spray box (11) and above the delivery port. The right side walls at both ends of the spray rack (31) are provided with a trapezoidal first slot (4). Two pairs of bearings (32) are respectively fixedly embedded in the two ends of the spray rack (31). The material pump (33) is fixedly arranged on the front side wall of the spray rack (31). A pair of the second flow dividers (34) are respectively fixedly arranged on the two ends of the spray rack (31) and located in front of the bearings (32). A plurality of valves are equidistantly arranged on the pair of the second flow dividers (34). The pair of the second flow dividers (34) are respectively connected to the discharge end of the material pump (33) through a second pipeline. One end of a plurality of the first sockets (35) are respectively movably inserted in the first slot (4). A pair of the spraying components (36) are respectively symmetrically arranged on the two ends of the spray rack (31).

6. The copper foil surface plating treatment device for lead frame processing according to claim 5, characterized in that: The spraying assembly (36) comprises a pair of shaft tubes (361), a pair of gears (362), a motor (363), a pair of swing arms (364), a plurality of second sockets (365), and a plurality of spray heads (366); One end of a pair of shaft tubes (361) is respectively fixedly inserted in the middle of the bearing (32); a pair of gears (362) is respectively fixedly sleeved on the other end of the shaft rod and is located below the bearing (32); the motor (363) is fixedly arranged on the upper wall of one end of the spray frame (31); and the driving end of the motor (363) is connected to one end of one of the shaft tubes (361); the pair of swing arms (364) are both L-shaped; one end of a pair of swing arms (364) is respectively fixedly sleeved on the other end of the shaft tube (361) and is located below the gear (362); a cross-shaped second slot (5) is opened in the middle of the other end of the pair of swing arms (364); a plurality of second sockets (365) are respectively movably inserted in the second slots (5); a plurality of spray heads (366) are respectively detachably screwed in the middle of the second socket (365) and the other end of the first socket (35); and the plurality of spray heads (366) are respectively connected to the valve of the second diverter (34) through a third pipeline.

7. The copper foil surface plating treatment device for lead frame processing according to claim 6, characterized in that: The second socket (365) and the first socket (35) are both screwed with a tightening bolt (6), and the second socket (365) and the first socket (35) are fixed by means of a top bolt.

8. The copper foil surface plating treatment device for lead frame processing according to claim 7, characterized in that: The third guide roller (17) and the lower pressure roller (183) are used for output and input, respectively.

Citation Information

Patent Citations

  • Aluminum foil double-sided online coating device

    CN117619674A

  • Electrolytic copper foil anti-oxidation spraying device and process

    CN117643985A

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