Novel titanium basket cover plate device for improving sinking, roughness, copper thickness uniformity and plate clamping of horizontal plating line

Abstract

The novel titanium basket cover plate device comprises a titanium basket cover plate body, a plurality of sets of installation guide grooves are formed in the upper surface of the titanium basket cover plate body, a reinforcing guide strip is embedded in each set of installation guide groove, and the reinforcing guide strips are arranged in the installation guide grooves. According to the novel titanium basket cover plate body, the reinforcing guide strips are used for increasing support, so that a thin plate can pass through the center positions of an upper titanium basket and a lower titanium basket, the distance between the plate and the upper titanium basket and the distance between the plate and the lower titanium basket are approximately equal, it is ensured that electroplated and separated metal copper is evenly attached to a cathode plate (a PCB), and therefore the production efficiency is improved; the improved titanium basket cover plate device can more effectively control the up-and-down fluttering range of a plate in a copper cylinder and the guiding effect, so that product damage caused by collision of a spray pipe, a nozzle and the like is reduced, the rejection rate is further reduced, the plate corner of a thin plate cannot collide with a wheel and a cover plate hole position, and plate corner deformation is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit board processing, and specifically relates to a novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and board clamping of horizontal electroplating lines. Background Art

[0002] The design levels of high-density interconnect (HDI) printed circuit boards are getting higher and higher. All HDI core board layers must be produced in the electroplating workshop. The thickness of HDI core boards is 2mil (0.045mil), 2.5mil, 3mil, and 4mil. Some products have exceeded the capacity of the equipment, and most of them are at the maximum limit of the equipment capacity (HORZONTAL equipment capacity board thickness: 0.05mm-2mm).

[0003] In the existing horizontal electroplating line production process, serious quality problems occur, mainly manifested in concave, rough plate edge, copper thickness uniformity, and very high board scrapping, especially for thin plates with a thickness of 0.045mm-0.15mm. The problem is particularly obvious and effective production cannot be carried out. The thin plate is clamped in the horizontal electroplating copper cylinder, and the clamp holds the production plate while dragging the entire plate forward in the solution. The upper and lower titanium baskets spray the solution onto the plate surface through the fan-shaped nozzle of the nozzle. Due to the thin and soft characteristics of the thin plate, and under the action of the solution spray and surge, the thin plate floats up and down in the copper cylinder and moves forward irregularly, and cannot run between the upper and lower titanium baskets. The thin plate will be affected by the solution during the floating of the copper cylinder, causing concave, roughness, poor copper thickness uniformity, and board jamming during electroplating.

[0004] To this end, we proposed a new titanium basket cover plate device to improve the concave, roughness, copper thickness uniformity and clamping plate of the horizontal electroplating line to solve the problems existing in the prior art. The titanium basket cover plate device was modified, designed and manufactured to improve product quality and reduce scrap to achieve the expected goals. Summary of the invention

[0005] The purpose of the present invention is to provide a new titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate jamming of horizontal electroplating lines, so as to solve the problems in the prior art mentioned in the above background technology that due to the thin and soft characteristics of the thin plate, and under the action of chemical spray and surge, the thin plate floats up and down in the copper cylinder and moves forward irregularly, and cannot run between the upper and lower titanium baskets. When the thin plate floats in the copper cylinder, it will be affected by the chemical solution and cause concave, roughness, poor copper thickness uniformity and plate jamming during electroplating.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A new type of titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and clamping of horizontal electroplating lines, comprising a titanium basket cover plate body, the upper surface of the titanium basket cover plate body is provided with a plurality of groups of mounting guide grooves, each group of the mounting guide grooves is embedded with a reinforcing guide bar, one end of the reinforcing guide bar is arranged flush with one side of the titanium basket cover plate body, the other end of the reinforcing guide bar exceeds the titanium basket cover plate body, both ends of the upper surface of the reinforcing guide bar are provided with beveled portions, the upper surface of the reinforcing guide bar is provided with a plurality of groups of through holes and six groups of countersunk holes, and the six groups of countersunk holes are provided with countersunk bolts bolted to the titanium basket cover plate body.

[0008] Preferably, the depth of the multiple groups of mounting guide grooves is 2 mm, and the thickness of the titanium basket cover plate body is 4 mm.

[0009] Preferably, each group of the installation guide grooves is arranged at an angle of 20° with a group of right-angled sides of the titanium basket cover plate body, and the bottom of the inner cavity of the installation guide grooves is provided with bottom holes for connecting multiple groups of through holes.

[0010] Preferably, the upper surface of the titanium basket cover body is provided with a plurality of groups of nozzle slots, the plurality of groups of nozzle slots are arranged at equal intervals, and each group of nozzle slots is provided with a plurality of nozzle slots.

[0011] Preferably, the plurality of groups of nozzle notches are all arranged obliquely, and the plurality of groups of nozzle notches and the plurality of groups of mounting guide grooves are arranged alternately and staggered.

[0012] Preferably, six groups of roller notches are provided on the upper surface of the titanium basket cover body, the six groups of roller notches are alternately arranged, and the six groups of roller notches are alternately arranged with the plurality of groups of mounting guide grooves.

[0013] Preferably, a plurality of groups of positioning holes are provided on the upper surface of the titanium basket cover body, the plurality of groups of positioning holes are arranged in a rectangular array, and the plurality of groups of positioning holes are arranged in a stepped shape.

[0014] Preferably, the upper surface of the titanium basket cover body is provided with a plurality of groups of medicine holes and a plurality of groups of filling holes, the plurality of groups of medicine holes and the plurality of groups of filling holes are arranged in a rectangular array, and the plurality of groups of medicine holes and the plurality of groups of filling holes are arranged alternately.

[0015] Preferably, side angles are provided on both sides of the titanium basket cover body, and the hole distance between the medicine hole and the filling hole is 1.5 mm.

[0016] Preferably, the reinforcing guide bar extends 1 cm beyond the side of the titanium basket cover body, and the thickness of the reinforcing guide bar is 7 mm.

[0017] The invention proposes a novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and clamping of the horizontal electroplating line, which has the following advantages compared with the prior art:

[0018] 1. The design of the titanium basket cover plate body and the reinforcing guide strip of the present invention. The new titanium basket cover plate body uses the reinforcing guide strip to increase the support, so that the thin plate can pass through the center position of the upper and lower titanium baskets. The plate is approximately equidistant from the upper and lower titanium baskets, ensuring that the electroplated metal copper is evenly attached to the cathode board (PCB board), thereby improving production efficiency. The improved titanium basket cover plate device can more effectively control the up and down floating range and guiding effect of the plate in the copper cylinder, thereby reducing product damage caused by collision with the nozzle, etc., thereby reducing the scrap rate, and the thin plate corners cannot hit the wheels and cover plate holes, avoiding deformation of the plate corners;

[0019] 2. The design of the titanium basket cover body of the present invention uses PVC-E material and the outer frame size is optimized, which helps to improve the durability and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of the titanium basket cover plate of the present invention;

[0022] Figure 3 It is a schematic diagram of the explosion structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the reinforcing guide bar structure of the present invention;

[0024] Figure 5 This is a bar graph showing the scrap rate of the titanium basket cover body produced by the present invention.

[0025] In the figure: 1. Titanium basket cover body; 2. Mounting guide groove; 3. Nozzle slot; 4. Roller slot; 5. Reinforcement guide strip; 51. Through hole; 52. Countersunk hole; 53. Bevel portion; 6. Countersunk bolt; 7. Positioning hole; 8. Filling hole; 9. Medicine hole; 10. Side angle. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying 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, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] The present invention provides Figure 1-5A new type of titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and clamping of horizontal electroplating lines is shown, including a titanium basket cover plate body 1, and a plurality of groups of mounting guide grooves 2 are provided on the upper surface of the titanium basket cover plate body 1, and a reinforcing guide bar 5 is embedded in each group of the mounting guide grooves 2, and one end of the reinforcing guide bar 5 is flush with one side of the titanium basket cover plate body 1, and the other end of the reinforcing guide bar 5 extends beyond the titanium basket cover plate body 1, and both ends of the upper surface of the reinforcing guide bar 5 are provided with bevel portions 53, and a plurality of groups of through holes 51 and six groups of countersunk holes 52 are provided on the upper surface of the reinforcing guide bar 5, and countersunk bolts 6 bolted to the titanium basket cover plate body 1 are provided in the six groups of countersunk holes 52.

[0028] The depth of the multiple groups of mounting guide grooves 2 is 2 mm, the thickness of the titanium basket cover body 1 is 4 mm, the overall outer frame size of the titanium basket cover body 1 is 635*412*4 mm, and the titanium basket cover body 1 is made of PVC-E material. Through the modified design of the titanium basket cover body 1, the problems of concave horizontal plating lines, rough plate edges, poor copper thickness uniformity and carding are effectively improved, especially for the process capability problems of thin plates (0.045 mm-0.15 mm), the newly designed titanium basket cover body 1 significantly improves the stability of thin plates during the electroplating process and product quality.

[0029] Each group of the mounting guide grooves 2 is arranged at an angle of 20° to a group of right-angled sides of the titanium basket cover plate body 1. The bottom of the inner cavity of the mounting guide grooves 2 is provided with bottom holes for connecting multiple groups of through holes 51. Burrs and flash will inevitably be generated on the titanium basket cover plate body 1 during the punching process. The generated burrs and flash need to be manually processed to improve the quality of the titanium basket cover plate body 1.

[0030] The upper surface of the titanium basket cover plate body 1 is provided with a plurality of groups of nozzle slots 3, and the plurality of groups of nozzle slots 3 are arranged at equal intervals, and each group of the nozzle slots 3 is provided with a plurality of nozzle slots. When drilling holes on the titanium basket cover plate body 1, the milling cutter needs to be replaced regularly to ensure the efficiency of drilling holes, avoid fractures between holes due to passivation of the milling cutter, improve the production quality of the titanium basket cover plate body 1, and reduce the scrap rate.

[0031] The multiple groups of nozzle slots 3 are all inclinedly arranged, and the multiple groups of nozzle slots 3 and the multiple groups of mounting guide grooves 2 are staggered and alternately arranged. The nozzle slots 3 are used to facilitate the fan-shaped nozzles to spray the medicine, thereby improving the uniformity of spraying the medicine on the board surface, thereby improving product quality.

[0032] Six groups of roller slots 4 are provided on the upper surface of the titanium basket cover body 1, and the six groups of roller slots 4 are alternately arranged. The six groups of roller slots 4 are alternately arranged with multiple groups of mounting guide grooves 2, respectively. Rollers are used to facilitate the transportation of thin plates, thereby improving the processing efficiency of thin plates. At the same time, under the support of the strengthening guide bar 5, the deformation of the thin plates is reduced.

[0033] The upper surface of the titanium basket cover body 1 is provided with a plurality of positioning holes 7, which are arranged in a rectangular array and are arranged in a stepped manner. The positioning holes 7 are used to facilitate rapid installation and positioning of the titanium basket cover body 1, and the positioning holes 7 are countersunk positioning holes 7 to avoid deformation of the titanium basket cover body 1 after positioning.

[0034] The upper surface of the titanium basket cover body 1 is provided with a plurality of groups of potion holes 9 and a plurality of groups of filling holes 8, which are arranged in a rectangular array, and are arranged alternately with the plurality of groups of potion holes 9 and the plurality of groups of filling holes 8. The use of the plurality of groups of potion holes 9 and the filling holes 8 can improve the processing efficiency of the thin plate, and the plates are approximately equidistant from the upper and lower titanium basket cover bodies 1, and the metal copper electroplated from the upper and lower titanium meshes is uniformly attached to the cathode plate (PCB board).

[0035] Side angles 10 are provided on both sides of the titanium basket cover body 1, and the hole distance between the medicine hole 9 and the filling hole 8 is 1.5 mm. The titanium basket cover body 1 needs to be evenly bonded with tape on both sides before drilling. Since the 4mm plate is thin and has no rigidity in the middle, it will be lifted up by the milling cutter during processing and caused to be scrapped. The tape must be pasted over a large area to ensure that the titanium basket cover body 1 reduces the scrap rate during the drilling process.

[0036] The reinforcing guide bar 5 extends 1 cm beyond the side of the titanium basket cover body 1, and the thickness of the reinforcing guide bar 5 is 7 mm. The extended length of the reinforcing guide bar 5 facilitates the thin plate to pass through the spacing between the front and rear titanium basket cover bodies 1, thereby reducing the scratches on the thin plate during movement under the guidance of the beveled portion 53 of the reinforcing guide bar 5, and the reinforcing guide bar 5 is PVDF, which has good properties such as high hardness, temperature resistance, wear resistance, and acid and alkali corrosion resistance.

[0037] During the production process of the titanium basket cover plate body 1, a large amount of adhesive tape is firstly bonded to both sides of the titanium basket cover plate body 1, so as to avoid the titanium basket cover plate body 1 from being broken due to the close hole spacing when the milling cutter punches holes, thereby improving the production yield of the titanium basket cover plate body 1. After the punching is completed, the attached adhesive material and the burrs on the holes need to be processed manually, so as to improve the surface flatness of the titanium basket cover plate body 1 and avoid scratching the thin plate. The reinforcing guide bar 5 is embedded in the installation guide groove 2, and the reinforcing guide bar 5 is connected to the titanium basket cover by the countersunk bolt 6. The plate body 1 is installed, and the titanium basket cover plate body 1 with the installed reinforcing guide bar 5 is installed in the copper cylinder. The nozzle sprays on the inside of the titanium basket cover plate device. The clamp horizontally clamps the short side of the plate and drags the plate between the upper and lower titanium baskets. The thin plate is transported by rollers. At the same time, the thin plate can be stably transported under the limiting effect of the reinforcing guide bar 5. The improved titanium basket cover plate device can more effectively control the up and down floating range and guiding effect of the thin plate in the copper cylinder, thereby reducing product damage caused by collision with nozzles, nozzles, etc., and further reducing the scrap rate.

[0038] Specifically, the following figure is a comparison chart of thin plate damage and scrap data:

[0039]

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel titanium basket cover plate device for improving the concave and roughness of horizontal electroplating lines, the uniformity of copper thickness, and the clamping plate, comprising a titanium basket cover plate body (1), characterized in that: The upper surface of the titanium basket cover plate body (1) is provided with a plurality of groups of mounting guide grooves (2), each group of the mounting guide grooves (2) is embedded with a reinforcing guide bar (5), one end of the reinforcing guide bar (5) is arranged flush with one side of the titanium basket cover plate body (1), and the other end of the reinforcing guide bar (5) protrudes beyond the titanium basket cover plate body (1), both ends of the upper surface of the reinforcing guide bar (5) are provided with beveled portions (53), the upper surface of the reinforcing guide bar (5) is provided with a plurality of groups of through holes (51) and six groups of countersunk holes (52), and the six groups of countersunk holes (52) are each provided with a countersunk bolt (6) bolted to the titanium basket cover plate body (1).

2. According to claim 1, a novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines is characterized by: The depth of the multiple groups of installation guide grooves (2) is 2 mm, and the thickness of the titanium basket cover plate body (1) is 4 mm.

3. A novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines according to claim 2, characterized in that: Each group of the installation guide grooves (2) is arranged at an angle of 20° with a group of right-angled sides of the titanium basket cover plate body (1), and the bottom of the inner cavity of the installation guide grooves (2) is provided with bottom holes for connecting multiple groups of through holes (51).

4. A novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines according to claim 3, characterized in that: The upper surface of the titanium basket cover plate body (1) is provided with a plurality of groups of nozzle slots (3), the plurality of groups of nozzle slots (3) are arranged at equal intervals, and each group of nozzle slots (3) is provided with a plurality of nozzle slots (3).

5. A novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines according to claim 4, characterized in that: The multiple groups of nozzle notches (3) are all arranged obliquely, and the multiple groups of nozzle notches (3) and the multiple groups of mounting guide grooves (2) are arranged alternately and staggered.

6. A novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines according to claim 5, characterized in that: The upper surface of the titanium basket cover plate body (1) is provided with six groups of roller slots (4), the six groups of roller slots (4) are arranged alternately, and the six groups of roller slots (4) are arranged alternately with the plurality of groups of mounting guide grooves (2).

7. A novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines according to claim 6, characterized in that: The upper surface of the titanium basket cover plate body (1) is provided with a plurality of groups of positioning holes (7), the plurality of groups of positioning holes (7) are arranged in a rectangular array, and the plurality of groups of positioning holes (7) are all arranged in a stepped shape.

8. A novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines according to claim 7, characterized in that: The upper surface of the titanium basket cover plate body (1) is provided with a plurality of groups of medicine holes (9) and a plurality of groups of filling holes (8), the plurality of groups of medicine holes (9) and the plurality of groups of filling holes (8) are arranged in a rectangular array, and the plurality of groups of medicine holes (9) and the plurality of groups of filling holes (8) are arranged alternately.

9. A novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines according to claim 8, characterized in that: Side angles (10) are provided on both sides of the titanium basket cover plate body (1), and the hole distance between the medicine hole (9) and the filling hole (8) is 1.5 mm.

10. A novel titanium basket cover plate device for improving the concave, roughness, copper thickness uniformity and plate clamping of horizontal electroplating lines according to claim 9, characterized in that: The reinforcing guide bar (5) extends 1 cm beyond the side of the titanium basket cover plate body (1), and the thickness of the reinforcing guide bar (5) is 7 mm.

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