Precious metal recovery mechanism

Abstract

The invention relates to a precious metal recovery mechanism which is suitable for recovering precious metal adhered to an adhesive tape with a thermal stripping type adhesive layer. The precious metal recovery mechanism comprises a base plate, a vertical plate, a transmission wheel set and at least one hot air gun, wherein the base plate stands on the ground and defines an opening; the vertical plate is vertically mounted on the base plate; the transmission wheel set protrudes forwards from the vertical plate; and the transmission wheel set rotationally conveys the adhesive tape adhered with the noble metal. And the at least one hot air gun blows hot air to the adhesive tape so that the adhesive layer of the adhesive tape is stripped and the noble metal falls off to be recovered. Hot air can be continuously blown to the adhesive tape through the at least one hot air gun, the transmission wheel set can continuously convey the adhesive tape to which precious metal is attached, and the precious metal recycling mechanism can continuously recycle the precious metal in an environment-friendly mode.

Description

Technical Field

[0001] The present invention relates to a precious metal recovery mechanism, in particular to a precious metal recovery mechanism applied to a precious metal recovery device. Background Art

[0002] The precious metal recovery device disclosed in the patent of Taiwan Certificate No. I516605B uses an adhesive tape with a heat-peelable adhesive layer to collect precious metals on the surface of an object (such as a wafer), and then passes the adhesive tape through a recovery mechanism with a pyrolysis tank. Under the action of hot water heating and with the assistance of an auxiliary scraper and an auxiliary heater, the adhesive layer of the adhesive tape is peeled off, and the precious metals collected on the adhesive tape fall off and are collected by a recovery tape. Finally, the recovery tape is burned to complete the recovery of precious metals.

[0003] The recycling mechanism uses hot water to heat the adhesive tape, but lacks a constant temperature device to maintain the pyrolysis function of the pyrolysis tank. Once the hot water cools down, the recycling mechanism loses its precious metal recovery function and needs to frequently replace the hot water, which is inconvenient and wastes water resources. Summary of the invention

[0004] The object of the present invention is to provide a precious metal recovery mechanism that can overcome the shortcomings of the prior art.

[0005] The precious metal recovery mechanism of the present invention is suitable for recovering precious metals attached to an adhesive tape having a heat-peelable adhesive layer. The precious metal recovery mechanism includes a base plate standing on the ground and defining an opening, a vertical plate uprightly mounted on the base plate, a transmission wheel group protruding forward from the vertical plate, and at least one hot air gun located below the opening.

[0006] The transmission wheel group rotates to transport the adhesive tape with precious metal attached, so that the adhesive tape can pass through the opening. The at least one hot air gun blows hot air to the adhesive tape to peel off the adhesive layer of the adhesive tape and the precious metal falls off to be recovered.

[0007] The precious metal recovery mechanism of the present invention, the vertical plate includes a collection box located below the opening, the transmission wheel set, and the hot air gun, and the collection box is used to recover the precious metals blown off the adhesive tape by the hot air gun.

[0008] The precious metal recovery mechanism of the present invention, the transmission wheel group includes two first transmission wheels located above the opening, and the first transmission wheel located on the right side guides the adhesive tape with precious metals attached to the opening.

[0009] The precious metal recovery mechanism of the present invention, the transmission wheel group also includes a winding wheel located above the middle of the first transmission wheels, and the winding wheel winds up the adhesive tape with the adhesive layer peeled off and guided from the first transmission wheel on the left side.

[0010] The precious metal recovery mechanism of the present invention, the transmission wheel group also includes two second transmission wheels located at the opening, the second transmission wheel located on the right side transports the adhesive tape with precious metal attached from the first transmission wheel on the right side to the second transmission wheel on the right side, and the second transmission wheel located on the left side transports the adhesive tape with the adhesive layer peeled off from the second transmission wheel on the left side to the first transmission wheel on the left side.

[0011] The precious metal recovery mechanism of the present invention, the transmission wheel group also includes two third transmission wheels located below the opening, the third transmission wheel located on the right side transports the adhesive tape from the second transmission wheel on the right side to the third transmission wheel on the right side, and the third transmission wheel located on the left side transports the adhesive tape from the third transmission wheel on the left side to the second transmission wheel on the left side.

[0012] The precious metal recovery mechanism of the present invention, the transmission wheel group also includes a bottom wheel located below the third transmission wheels and adjacent to the collection box, and the bottom wheel guides the adhesive tape from the third transmission wheel on the right to the third transmission wheel on the left.

[0013] The precious metal recovery mechanism of the present invention has two hot air guns.

[0014] The precious metal recovery mechanism of the present invention, the hot air guns are located below the third transmission wheels and above the bottom wheel.

[0015] In the precious metal recovery mechanism of the present invention, the transmission wheel group can rotate along the feeding direction to convey the adhesive tape with precious metals attached thereto. When the adhesive tape passes under the hot air guns, the hot air guns can blow hot air downward to the adhesive tape, causing the precious metals to fall downward into the collection box.

[0016] The beneficial effect of the present invention is that: the at least one hot air gun can continuously blow hot air to the adhesive tape, and the transmission wheel group can continuously transport the adhesive tape with precious metals attached, and the precious metal recovery mechanism can continuously and environmentally friendly recover precious metals. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings:

[0018] Figure 1 is a three-dimensional diagram of an embodiment of the precious metal recovery mechanism of the present invention; and

[0019] Figure 2 It is a fragmentary, partially cut-away front view of this embodiment. DETAILED DESCRIPTION

[0020] See also Figure 1 and Figure 2 One embodiment of the precious metal recovery mechanism of the present invention is suitable for recovering precious metals (not shown) attached to an adhesive tape 9 having a heat-peelable adhesive layer 91. The adhesive tape 9 is a retractable long strip structure. The adhesive layer 91 is provided on one side of the adhesive tape 9. When the adhesive layer 91 passes through a bonding operation area 8 on the right side, the precious metal is bonded to the side of the adhesive layer 91 opposite to the adhesive tape 9. Thus, the adhesive tape 9, the adhesive layer 91, and the precious metal constitute a three-layer structure.

[0021] The operation mechanism of the adhesive tape 9 adhering precious metals when passing through the adhesive operation area 8 on the right side is as follows: the adhesive operation area 8 is provided with a driving mechanism 81 for driving the adhesive operation, and a guide wheel set 82 for guiding the adhesive tape 9 to be transported along a feeding direction X.

[0022] The driving mechanism 81 includes a horizontal mounting plate 811, several pillars 812 supporting the mounting plate 811 from below, a lifting plate 813 that can be raised and lowered between the pillars 812, a lifting cylinder 814 installed on the mounting plate 811 and driving the lifting plate 813 to rise and fall, two guide rods 815 installed under the lifting plate 813 and arranged front and back, and a moving component 816 that can be guided by the guide rods 815 to reciprocate left and right.

[0023] The guide wheel assembly 82 includes a starting wheel 821 located above the right side of the lifting cylinder 814 and can be driven to start rolling and conveying the adhesive tape 9, a first guide wheel 822 located below the right side of the starting wheel 821, a second guide wheel 823 located on the right side of the moving component 816, an adhesive pressure wheel 824 mounted at the bottom end of the moving component 816, and a third guide wheel 825 mounted on the left side of the pillar 812.

[0024] The adhesive tape 9 passes through the start wheel 821, the first guide wheel 822, the second guide wheel 823, the adhesive pressure wheel 824, and the third guide wheel in sequence along the feeding direction X. The range of the adhesive operation area 8 is between the second guide wheel 823 and the third guide wheel 825. When an object 7 passes through the adhesive operation area 8, the lifting plate 813 is driven by the lifting and lowering cylinder 814 to move downward, and at the same time drives the adhesive pressure wheel 824 to move downward, and the passing adhesive tape 9 is pressed against the surface of the object 7 moving through. Driven by the moving component 816, the adhesive pressure wheel 824 reciprocates left and right to adhere to the precious metal on the surface of the object 7. Then, the lifting and lowering cylinder 814 drives the lifting plate 813 and the adhesive pressure wheel 824 to rise, so that the precious metal originally attached to the surface of the object 7 is adhered by the adhesive layer 91 of the adhesive tape 9. Finally, the adhesive tape 9 with precious metal attached thereto enters the precious metal recovery mechanism on the left side along the feeding direction X under the guidance of the third guide wheel 825. The object 7 is then transferred to the storage area at the rear.

[0025] The precious metal recovery mechanism includes a substrate 1 standing on the ground and defining an opening 10, a vertical plate 2 vertically mounted on the substrate 1, a transmission wheel group 3 protruding forward from the vertical plate 2, and two hot air guns 4 located below the opening 10. The substrate 1 can be provided with the adhesive operation area 8, but the adhesive operation area 8 is not necessarily provided on the substrate 1. The transmission wheel group 3 rotates and transports the adhesive tape 9 with precious metals attached thereto so that the adhesive tape can pass through the opening. Each of the hot air guns 4 contains a turbine motor that can draw in air, and a thermal resistor wire that can heat the air when powered. Therefore, the hot air gun 4 can continuously blow hot air to the adhesive tape 9 so that the adhesive layer 91 of the adhesive tape 9 is peeled off and the precious metal falls off to be recovered. It should be noted that the number of the hot air guns 4 is not limited to two and can be changed according to actual needs.

[0026] The vertical plate 2 includes a collection box 21 located below the opening 10, the transmission wheel set 3, and the hot air gun 4. The collection box 21 is used to recover the precious metals blown off from the adhesive tape 9 by the hot air gun 4. The collection box 21 has a box body 211 defining a collection port 210, and two tracks 212 for receiving the box body 211. The precious metals falling downward from the adhesive tape 9 can pass downward through the collection port 210 and fall into the box body 211. When the box body 211 is full of precious metals, the user can make the transmission wheel set 3 stop conveying the adhesive tape 9, remove the box body 211 from the tracks 212, empty the box body 211, and then place it back on the tracks 212, and make the transmission wheel set 3 convey the adhesive tape 9 again to continue collecting precious metals.

[0027] The transmission wheel assembly 3 includes a reel 31 located above the opening 10 and capable of being driven to reel in the adhesive tape 9, two first transmission wheels 32 located above both sides of the opening 10 and below both sides of the reel 31, two second transmission wheels 33 located at the opening 10, two third transmission wheels 34 located below the opening 10, and a bottom wheel 35 located below the third transmission wheel 34 and adjacent to the collection box 21. The hot air gun 4 is located below both sides of the third transmission wheel 34 and above the bottom wheel 35.

[0028] The precious metal collection process is as follows: the transmission wheel group 3 rotates along the feeding direction X to convey the adhesive tape 9 with precious metal attached thereto. The first transmission wheel 32 on the right side guides the adhesive tape 9 with precious metal attached thereto toward the opening 10, the second transmission wheel 33 on the right side conveys the adhesive tape 9 with precious metal attached thereto from the first transmission wheel 32 on the right side to the second transmission wheel 33 on the right side, the third transmission wheel 34 on the right side conveys the adhesive tape 9 from the second transmission wheel 33 on the right side to the third transmission wheel 34 on the right side, the bottom wheel 35 guides the adhesive tape 9 from the third transmission wheel 34 on the right side to the third transmission wheel 34 on the left side, during which the hot air gun 4 Hot air is blown downwardly toward the adhesive tape 9, and the precious metal falls off downwardly and falls into the collecting box 21. The third transmission wheel 34 on the left side transports the adhesive tape 9 with the adhesive layer 91 peeled off from the third transmission wheel 34 on the left side to the second transmission wheel 33 on the left side. The second transmission wheel 33 on the left side transports the adhesive tape 9 with the adhesive layer 91 peeled off from the second transmission wheel 33 on the left side to the first transmission wheel 32 on the left side. The winding wheel 31 winds up the adhesive tape 9 with the adhesive layer 91 peeled off guided from the first transmission wheel 32 on the left side.

[0029] In summary, the precious metal recovery mechanism of the present invention can continuously blow hot air to the adhesive tape 9 through the at least one hot air gun 4, and the transmission wheel assembly 3 can continuously transport the adhesive tape 9 with precious metals attached thereto. The precious metal recovery mechanism can continuously and environmentally friendly recover precious metals, and thus can truly achieve the purpose of the present invention.

[0030] The above are only embodiments of the present invention and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A precious metal recovery mechanism, suitable for recovering precious metals attached to an adhesive tape having a heat-peelable adhesive layer, Features: The base plate, standing on the ground, defines the opening; A vertical plate, vertically mounted on the base plate; A transmission wheel group protrudes forward from the vertical plate and rotates to transport the adhesive tape with the precious metal attached thereto so that the adhesive tape can pass through the opening; and At least one hot air gun is located below the opening and blows hot air toward the adhesive tape to peel off the adhesive layer of the adhesive tape and cause the precious metal to fall off and be recovered.

2. The precious metal recovery mechanism according to claim 1, Features: The vertical plate includes a collection box located below the opening, the transmission wheel set, and the hot air gun, and the collection box is used to recover the precious metal blown off from the adhesive tape by the hot air gun.

3. The precious metal recovery mechanism according to claim 2, Features: The transmission wheel set includes two first transmission wheels located above the opening, and the first transmission wheel located on the right side guides the adhesive tape with the precious metal attached to the opening.

4. The precious metal recovery mechanism according to claim 3, Features: The transmission wheel assembly further includes a reeling wheel located above the middle of the first transmission wheel, and the reeling wheel reels the adhesive tape with the adhesive layer peeled off and guided from the first transmission wheel on the left side.

5. The precious metal recovery mechanism according to claim 4, Features: The transmission wheel group also includes two second transmission wheels located at the opening. The second transmission wheel located on the right side transports the adhesive tape with precious metal attached from the first transmission wheel on the right side to the second transmission wheel on the right side, and the second transmission wheel located on the left side transports the adhesive tape with the adhesive layer peeled off from the second transmission wheel on the left side to the first transmission wheel on the left side.

6. The precious metal recovery mechanism according to claim 5, Features: The transmission wheel group also includes two third transmission wheels located below the opening. The third transmission wheel located on the right side transports the adhesive tape from the second transmission wheel on the right side to the third transmission wheel on the right side, and the third transmission wheel located on the left side transports the adhesive tape from the third transmission wheel on the left side to the second transmission wheel on the left side.

7. The precious metal recovery mechanism according to claim 6, Features: The transmission wheel assembly further includes a bottom wheel located below the third transmission wheel and adjacent to the collecting box, and the bottom wheel guides the adhesive tape from the third transmission wheel on the right side to the third transmission wheel on the left side.

8. The precious metal recovery mechanism according to claim 7, Features: The number of the heat guns is two.

9. The precious metal recovery mechanism according to claim 8, Features: The hot air gun is located below the third transmission wheel and above the bottom wheel.

10. The precious metal recovery mechanism according to claim 9, Features: The transmission wheel set can rotate along the feeding direction to convey the adhesive tape with precious metal attached thereto. When the adhesive tape passes under the hot air gun, the hot air gun can blow hot air downward to the adhesive tape to make the precious metal fall off downward and fall into the collection box.

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