TWI668055B - Copper scraping device - Google Patents

Abstract

A copper scraping device comprising at least one roller set and at least one pressure device, the roller set having two freewheels oppositely disposed, the freewheel having a symmetry plane and supported by an axle on which the pressure device is disposed, the pressure The device drives the symmetry planes of the two freewheels to have opposite clamping forces, and the two axle extension lines of the two freewheels intersect such that the opposite symmetry planes form a feed end and a sweep end, the feed end A copper foil is introduced, and the copper scrap of the copper foil is removed by the cleaning end. The invention adopts the two freewheels of the roller set to be disposed at the cutting edge of the copper foil strip, which can effectively remove the copper scraps generated by the cutting of the copper foil strips, and the troubles caused by the subsequent processes, Has good practical performance.

Description

Copper scrap cleaning device

The invention relates to a copper scrap cleaning device, in particular to a copper scrap cleaning device which is swept by a forced force.

In the printed circuit board industry and the battery industry, copper foil is a key material, including electrolytic copper foil and rolled copper foil, which have different crystal phase structures. Among them, the industrial application considers the bright surface treatment, the tumor treatment, and the etching performance of the copper foil, and employs an electrolytic copper foil having a high etching rate, a large etching factor, a near vertical structure, a uniform crystal orientation, and high etching performance. However, the copper leaf of the electrolytic copper foil is large, and when the copper foil is slit, copper scraps such as copper powder and copper tumor are easily generated at the edge of the copper foil cutting, and these copper scraps are easily peeled off by a slight external force in the post-process, when copper The chip is separated between the two conductors, which may cause short circuit or poor insulation, which may cause the electrical product to crash, and may even cause the battery to be overheated, fire or explosion. At present, although there are some control measures for the copper chips in the process, if the copper foil material itself is not removed, it is still impossible to effectively avoid these hidden concerns, and it is necessary to improve.

In view of this, it is necessary to provide a copper scrap cleaning device that can remove copper scrap from the copper foil material itself.

The present invention provides a copper scrap cleaning device comprising: at least one roller set and at least one pressure device, the roller set having two free wheels oppositely disposed, the free wheel having a symmetry plane and supported by an axle The plane of symmetry is free to rotate on the axle. The pressure device is disposed on the axle, and the pressure device drives the symmetry planes of the two free wheels to face each other and has a clamping force between the opposing symmetry planes. The two axle extension lines of the two freewheels intersect such that the opposite symmetry plane is formed with a feeding end and a sweeping end, the feeding end is connected to lead a copper foil, and the cleaning end is used to remove the copper foil. Copper shavings.

Compared with the prior art, the copper scraping device of the present invention can effectively forcibly sweep the contact between the cutting edges of the copper foil strips by the clamping force of the symmetry plane on the two freewheels of the roller set. The copper scraps produced by the cutting of the copper foil strips and the hidden problems caused by the subsequent processes have good practical performance.

100‧‧‧ copper scrap cleaning device

10‧‧‧Roller set

12‧‧‧Freewheel

14‧‧‧Axle

16‧‧‧symmetric plane

161‧‧‧ Feeding end

163‧‧‧sweeping end

20‧‧‧ Pressure device

30‧‧‧ copper foil

32‧‧‧ Cutting edge

A‧‧‧ touch points

B‧‧‧Axis

F‧‧‧ clamping force

Θ‧‧‧ inclination

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view showing a specific embodiment of a copper scrap cleaning device of the present invention.

Figure 2 is a side elevational view of the copper scrap cleaning device of Figure 1.

Figure 3 is a plan view of the copper scrap cleaning device of Figure 2.

The present invention will be specifically described below with reference to the accompanying drawings.

1 is a perspective view of a specific embodiment of a copper scrap cleaning device of the present invention. The copper scrap cleaning device 100 includes at least one roller set 10 and at least one pressure device 20 having two free wheels 12 oppositely disposed, each of the two free wheels 12 being supported by an axle 14 and the two free wheels 12 Each has a plane of symmetry 16 thereon. The axial extension lines of the two axles 14 of the two freewheels 12 intersect, and the two axles 14 are respectively disposed at an inclination angle θ, and the inclination angle θ makes the two opposite phases The two symmetry planes 16 of the wheel 12 form a feed end 161 and a sweep end 163. The inclination angle θ is an angle between the axis of the copper foil 30 between the axle 14 and the two freewheels 12, and the angle of inclination θ ranges from 40 degrees to 80 degrees. The roller set 10 is disposed on a side of the copper foil 30. The copper foil 30 has a cutting edge 32, and the cutting edge 32 is located on both sides of the strip of the copper foil 30. The strip of copper foil 30 is wound by an upper reel 34 and a lower reel 36, and the copper foil 30 of the strip is wound by the upper reel 34 toward the lower reel 36. The roller set 10 is disposed on a side of the copper foil 30. The feeding end 161 of the two free wheels 12 faces the upper reel 34, and the sweeping end 163 of the two free wheels 12 is adjacent to the lower reel 36. Since the feeding end 161 and the sweeping end 163 are formed by the opposite symmetry planes 16, the feeding end 161 is formed in an open shape, and the sweeping end 163 is formed in a closed shape. After the opening end of the feeding end 161 is in contact with the copper foil 30, the copper foil 30 passes through the closed cleaning end 163 (shown in FIG. 2). In addition, in the embodiment, the pressure device 20 is disposed on the two axles 14, and the pressure device 20 drives a relative clamping force f between the opposing symmetry planes 16, and the clamping force f acts on the sweeping The end 163 is to remove the copper shavings of the copper foil 30. However, the clamping force f can also be achieved by a pressure device 20, for example; only one of the axles 14 is provided with the pressure device 20 on the two axles 14, and the other axle 14 is not provided with the pressure. In the device 20, the freewheel 12 provided by the pressureless device 20 is fixedly disposed, and the free wheel 12 provided with the pressure device 20 can correspondingly have the clamping force f between the two symmetry planes 16.

Please refer to FIG. 2 again, which is a side view of the copper scrap cleaning device of FIG. 1. The wiper end 163 has a contact point A which is located on the cutting edge 32 of the copper foil 30. Since the cutting edge 32 of the copper foil 30 is sheared by the copper foil 30, the crystal structure of the copper foil 30 is damaged, and it is most likely to cause copper chips such as copper tumors and copper powder to be peeled off. Therefore, the contact point A of the cleaning end 163 is placed on the cutting edge 32 of the copper foil 30, and the copper swarf which is easily detached on the cutting edge 32 passes between the symmetry planes 16 of the cleaning end 163. The clamping force f acts on the contact point A to perform the cleaning of the copper chips. The cutting edge 32 of the copper foil 30 is moved by the feeding end 161 toward the cleaning end 163, the sweep The contact point A of the end 163 is rotated by the action of the clamping force f, and the direction of rotation of the free wheel 12 is turned from the inner side of the copper foil 30 to the outer side of the copper foil 30. The copper chips of the cutting edge 32 are swept away from the inside and the outside of the copper foil 30 toward the outside of the copper foil 30. In addition, the two axles 14 of the two freewheels 12 each have an axis B, and the axis B is located at the contact point A of the sweeping end 163 toward the upper reel 34, and the copper foil 30 is located at the contact point A of the copper foil 30. The outer position of the edge 32 is cut (as shown in Figure 3). In other words, in the present embodiment, the axis B of the two freewheels 12 is located above the contact point A and outside the cutting edge 32. Wherein the axis B above the contact point A means that the axis B is on the source of the copper foil 30 (near the upper reel 34) for causing the copper foil 30 to pass from the upper reel 34. When the lower reel 36 is wound and moved, the freewheel 12 is driven to rotate in the forward direction at the contact point A after passing through the axis B. The forward rotation of the freewheel 12 is formed at the cutting edge 32, and the rotation of the interior of the copper foil 30 toward the outside causes the copper scrap of the cutting edge 32 to be wiped to the outside of the copper foil 30 without It is again brought back to the copper foil 30 to achieve a copper scrap that effectively sweeps the cutting edge 32.

Furthermore, the pressure device 20 is an elastic mechanism that generates elastic pressure to the free wheel 12, and the clamping force f between the two free wheels 12 is controlled by the elastic pressure adjustment of the elastic mechanism. In this embodiment, the pressure device 20 is a compression spring, and the compression spring is sleeved on the two axles 14 . The elastic pressure of the compression spring acts on the free wheel 12 to make the two symmetry planes of the free wheel 12 opposite. The clamping force f is generated between the 16 and the clamping force f acts on the contact point A of the sweeping end 163 for performing a sweep of the cutting edge 32 at the contact point A. Since the thickness of the copper foil 30 is different, the copper foil 30 of different thicknesses can be adjusted by the elastic pressure of the pressure device 20, and the contact point A of the cutting edge 32 is provided with the appropriate clamping force. f, so that the clamping force f can effectively sweep the copper scrap of the cutting edge 32 at the contact point A. The elastic pressure adjustment technique of the pressure device 20 is a known technique. For example, the elastic spring pressure adjustment of the compression spring in this embodiment can be adjusted by the pressure of the compression spring, which is conventional and It is not a technical feature of the present invention, so it will not be described in detail here, and is hereby described. Finally, the freewheel 12 of the roller set 10 is a soft brush wheel. The material of the soft brush wheel comprises a rubber material disposed on the plane of symmetry 16 such that the rubber material of the plane of symmetry 16 forms a working surface. The working surface of the soft brush wheel is a circular flat surface, a tapered surface, and a compound surface of a tapered surface and a plane. The working surface of the symmetry plane 16 is in contact with the cutting edge 32 of the copper foil 30 at the contact point A, and the copper swarf of the cutting edge 32 can be forcibly swept, so that the copper foil 30 material completely solves the copper at the raw material end. The problem of chipping, to avoid potential problems or uncertainties in subsequent applications or manufacturing, has good performance.

The copper scraping device of the present invention is effective in the contact of the cutting edge 32 of the strip of copper foil 30 by the clamping force f of the symmetry plane 16 on the two freewheels 12 of the roller set 10, which is effective The copper scraps of the copper foil 30 are forcibly removed to solve the problems of subsequent processes and applications, and have good practical performance.

It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and those skilled in the art can make other changes within the spirit of the present invention. All changes made in accordance with the spirit of the invention are intended to be included within the scope of the invention.

Claims (9)

A copper scraping device comprising at least one roller set and at least one pressure device, the roller set having two freewheels oppositely disposed, each of the two freewheels being supported by an axle, and each of the two freewheels has a plane of symmetry, The two axles of the two freewheels intersect at an angle of inclination, the angles of the two symmetrical planes forming a feed end and a sweeping end. After the feed end is connected to a copper foil, the copper foil passes through the sweeping The pressure device is disposed on the axle, and the pressure device drives a relative clamping force between the two symmetry planes, and the clamping force acts on the sweeping end to remove copper scrap of the copper foil. The copper scraping device of claim 1, wherein the copper foil has a cutting edge on both sides of the strip of copper foil, the strip of copper foil passing through an upper reel and The reel is wound and the copper foil is wound from the upper reel toward the lower reel. The feed end of the two freewheels faces the upper reel, and the sweep end of the two freewheels is adjacent to the lower reel. The copper scraping device of claim 2, wherein the sweeping end has a contact point for being disposed on the cutting edge of the copper foil to have copper shavings on the cutting edge The clamping force between the symmetry planes of the sweeping end is swept at the contact point. The copper scraping device of claim 3, wherein the copper foil is moved from the feeding end toward the sweeping end, and the contact point of the sweeping end rotates the free wheel by the clamping force. The direction in which the freewheel rotates is turned from the inner side of the copper foil to the outer side of the copper foil, and the copper scrap of the copper foil is swept away from the inside to the outside of the copper foil. The copper scraping device of claim 1, wherein the two axles of the two freewheels each have an axis, the contact point of the hub at the sweeping end facing the upper spool, and Located at an outer position of the cutting edge of the copper foil. The copper scrap cleaning device according to claim 1, wherein the pressure device is an elastic mechanism, and the elastic mechanism generates elastic pressure on the free wheel, and the elastic pressure is adjusted by the elastic mechanism to control the two free wheels. The clamping force between. The copper scrap cleaning device of claim 1, wherein the free wheel of the roller set is a soft brush wheel, and the material of the soft brush wheel comprises a rubber material, and the rubber material is disposed on the symmetry plane. The copper scraping device of claim 7, wherein the rubber material of the symmetry plane forms a working surface, the working surface being a circular flat surface, a tapered surface, and a compound surface of a tapered surface and a plane. The copper scrap cleaning device of claim 1, wherein the tilt angle is an angle between the axle and the plane of the copper foil between the two freewheels, and the angle of the tilt angle ranges from 40 degrees to 80 degrees.