Method for Recycling Cutting Tool Handles from Cemented Carbide Scrap and Zinc Melting Furnace

Abstract

The present invention discloses a method for reproducing a tool shank based on hard alloy waste and a zinc melting furnace. When in use, first put zinc raw materials and hard alloy raw materials to be decomposed into a zinc melting boat dish, then stack a plurality of zinc melting boat dishes vertically in sequence in a zinc melting cavity, then seal the discharge port with a tank cover, and start the zinc melting furnace to decompose the hard alloy; after decomposition is completed, open the tank cover, then synchronously start the first hydraulic cylinder and the second hydraulic cylinder to drive the first support arm and the second support arm to move synchronously, so as to drive the connecting piece to extend into the zinc melting cavity and connect the zinc melting boat dish to the connecting piece, then synchronously start the first hydraulic cylinder and the second hydraulic cylinder again to drive the first support arm and the second support arm to move synchronously in the reverse direction, so as to drive the connecting piece to extend out of the zinc melting cavity and take out the zinc melting boat dish from the furnace tank. Repeating the above operations can take out all the zinc melting boat dishes from the furnace tank in sequence, which is convenient, fast, time-saving and labor-saving.

Description

Technical Field

[0001] The present invention relates to the technical field of cemented carbide cutting tools, and particularly to a method for reproducing a tool shank based on cemented carbide waste and a zinc melting furnace. Background Art

[0002] The basic principle of treating cemented carbide by the zinc melting method is as follows: taking advantage of the property that zinc can form low-melting-point compounds with rare metals such as cobalt at a relatively low temperature, the rare metals such as cobalt in the binder phase that are firmly combined with carbides in the cemented carbide lose their effects, so that the carbides in the cemented carbide disintegrate. Then, taking advantage of the fact that the vapor pressure of zinc is much higher than that of rare metals such as cobalt and the boiling point of zinc is much lower than that of rare metals such as cobalt, zinc is evaporated to make the cemented carbide into a loose and porous material that is easy to grind finely, thereby realizing the recovery and reuse of rare metals, and zinc can be reused.

[0003] The zinc melting crucible is an important component in the zinc melting furnace, and its material is graphite; the function of the zinc melting crucible is to place the cemented carbide and zinc to be dissolved. The existing zinc melting crucibles are vertically stacked in the zinc melting furnace. After the cemented carbide in the zinc melting crucible disintegrates into a loose and porous material, it is necessary to take out the zinc melting crucible from the zinc melting furnace to take away the material. The prior art uses manual methods to take out the zinc melting crucible from the zinc melting furnace, which is time-consuming and laborious. Summary of the Invention

[0004] The main object of the present invention is to provide a method for reproducing a tool shank based on cemented carbide waste and a zinc melting furnace, aiming to solve the problem that the prior art uses manual methods to take out the zinc melting crucible from the zinc melting furnace, which is time-consuming and laborious.

[0005] The technical solution proposed by the present invention is as follows:

[0006] A zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste, comprising a furnace pot, a zinc melting boat, a pot cover and a material taking assembly; an inner cavity is provided inside the furnace pot; a partition is arranged near the lower part of the inner cavity; the partition divides the inner cavity into a zinc melting cavity and a collection cavity; there are multiple zinc melting boats; the multiple zinc melting boats are vertically stacked in sequence in the zinc melting cavity; a discharge port is arranged at the top of the furnace pot; the pot cover is detachably arranged at the top of the furnace pot for sealing the discharge port; the material taking assembly includes a first hydraulic cylinder, a second hydraulic cylinder, a first support arm, a second support arm, a support column and a connecting piece; the bases of the first hydraulic cylinder and the second hydraulic cylinder are both connected to the outer wall of the furnace pot; the first hydraulic cylinder and the second hydraulic cylinder are symmetrical about the central axis of the furnace pot; the telescopic end of the first hydraulic cylinder is connected to the first support arm, and the telescopic end of the second hydraulic cylinder is connected to the second support arm; both sides of the support column are respectively connected to the first support arm and the second support arm; the connecting piece is connected to the support column; the connecting piece is used to extend into the zinc melting cavity and connect the zinc melting boat.

[0007] Preferably, the material taking assembly further includes a first sleeve arm and a second sleeve arm arranged vertically; both the first sleeve arm and the second sleeve arm are connected to the outer wall of the furnace pot; the first support arm slidably penetrates through the first sleeve arm; a first baffle is arranged inside the first support arm; the base of the first hydraulic cylinder is connected to the inner bottom wall of the first sleeve arm, and the telescopic end of the first hydraulic cylinder is connected to the first baffle; the second support arm slidably penetrates through the second sleeve arm; a second baffle is arranged inside the second support arm; the base of the second hydraulic cylinder is connected to the inner bottom wall of the second sleeve arm, and the telescopic end of the second hydraulic cylinder is connected to the second baffle.

[0008] Preferably, the zinc melting boat includes a first wall and a second wall parallel to each other; a cavity is provided in the first wall; the zinc melting boat is further provided with a plurality of ventilation holes penetrating through the first wall and the second wall; a plurality of communication holes are provided in the cavity; one end of the communication hole penetrates through the cavity, and the other end of the communication hole penetrates through the corresponding ventilation hole; the ventilation holes of two adjacent zinc melting boats correspond to each other one by one.

[0009] Preferably, it further includes a collection bucket arranged in the collection cavity; a plurality of air outlet holes are provided in the partition; the air outlet holes correspond to the ventilation holes of a single zinc melting boat one by one; the air outlet holes are used to be directly opposite to the corresponding ventilation holes.

[0010] Preferably, it further includes an air outlet pipe, an air inlet pipe and an air pump; the air inlet pipe is connected to the top of the zinc melting chamber; the air outlet pipe is connected to the collection chamber; the inlet end of the air pump is connected to the air outlet pipe; the outlet end of the air pump is connected to the air inlet pipe; the air inlet pipe is further connected to an injection pipe; a first valve is further arranged between the injection pipe and the air inlet pipe.

[0011] Preferably, the furnace pot is further provided with a zinc discharge pipe penetrating through and communicating with the bottom of the collection bucket; a third valve is arranged on the zinc discharge pipe.

[0012] Preferably, the number of the communication holes is 2; the connecting member includes a sleeve, a first ring plate, a second ring plate, a first electric push rod, a second electric push rod, a first connecting arm and a second connecting arm; the sleeve is connected to the support column; the first ring plate and the second ring plate are slidably sleeved on the sleeve; the first electric push rod is used to drive the first ring plate to slide along the sleeve; the second electric push rod is used to drive the second ring plate to slide along the sleeve; the first connecting arm is connected to the first ring plate; the second connecting arm is connected to the second ring plate; the first connecting arm is connected with a first docking column; the second connecting arm is connected with a second docking column; the first docking column is used to be embedded in one of the communication holes, and the second docking column is used to be embedded in the other communication hole.

[0013] Preferably, the central axes of the first docking column and the second docking column are both horizontally arranged.

[0014] A method for reproducing a tool handle based on cemented carbide waste, comprising:

[0015] Using a zinc melting furnace for reproducing a tool handle based on cemented carbide waste to decompose the cemented carbide raw material into a primary material that is loose, porous and easy to grind finely;

[0016] Grinding the primary material into a fine powder by a ball mill;

[0017] Extruding the fine powder into a rod-shaped formed material;

[0018] Pre-drying the formed material;

[0019] Sintering the pre-dried formed material in a sintering furnace to form an alloy rod;

[0020] Cutting and grinding the alloy rod to form a tool handle.

[0021] Preferably, the step of cutting and grinding the alloy rod to form a tool handle includes:

[0022] Cutting the alloy rod to form a primary tool handle;

[0023] Grind both ends of the initial blank of the tool shank by an end face grinder;

[0024] Chamfer the ground initial blank of the tool shank by a chamfering device to form a tool shank.

[0025] By the above technical solution, the following beneficial effects can be achieved:

[0026] The zinc melting furnace for reproducing the tool shank based on cemented carbide waste proposed by the present invention can take out the zinc melting crucible from the zinc melting furnace more labor - saving and quickly; the specific operation method is as follows: when in use, first put zinc raw materials and cemented carbide raw materials to be decomposed into the zinc melting crucible, then stack multiple zinc melting crucibles vertically in sequence in the zinc melting cavity, then seal the discharge port with the tank cover, and start the zinc melting furnace to decompose the cemented carbide; after decomposition is completed, open the tank cover, then synchronously start the first hydraulic cylinder and the second hydraulic cylinder to drive the first support arm and the second support arm to move synchronously, so as to drive the connecting piece to extend into the zinc melting cavity and connect the zinc melting crucible to the connecting piece, then synchronously start the first hydraulic cylinder and the second hydraulic cylinder again to drive the first support arm and the second support arm to move synchronously in the reverse direction, so as to drive the connecting piece to extend out of the zinc melting cavity and take out the zinc melting crucible from the furnace tank. Repeating the above operation can take out all the multiple zinc melting crucibles from the furnace tank in sequence, which is convenient, fast, time - saving and labor - saving. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0028] Figure 1 It is a schematic structural diagram of an embodiment of a zinc melting furnace for reproducing the tool shank based on cemented carbide waste proposed by the present invention;

[0029] Figure 2 It is a schematic structural diagram of another state of an embodiment of a zinc melting furnace for reproducing the tool shank based on cemented carbide waste proposed by the present invention;

[0030] Figure 3 It is a schematic internal structure diagram of the furnace tank of an embodiment of a zinc melting furnace for reproducing the tool shank based on cemented carbide waste proposed by the present invention;

[0031] Figure 4 It is a schematic structural diagram of the zinc melting crucible of an embodiment of a zinc melting furnace for reproducing the tool shank based on cemented carbide waste proposed by the present invention;

[0032] Figure 5Partial structural schematic diagram (1) of a zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste proposed by the present invention;

[0033] Figure 6 Partial structural schematic diagram (2) of a zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste proposed by the present invention.

[0034] Explanation of reference numerals:

[0035] 110, furnace pot; 120, zinc melting cavity; 130, collection cavity; 140, zinc melting boat; 150, pot cover; 160, collection bucket; 170, gas outlet pipe; 180, gas inlet pipe; 190, air pump; 210, first valve; 220, injection gas pipe; 230, zinc discharge pipe; 240, third valve; 250, partition board; 260, first sleeve arm; 270, first support arm; 280, support plate; 290, third hydraulic cylinder; 310, first connecting plate; 320, support column; 330, fourth baffle; 340, docking pipe; 360, second connecting arm; 370, second valve; 380, cavity; 390, first wall; 410, second wall; 420, ventilation hole; 430, communication hole; 440, sleeve; 450, third baffle; 460, first electric push rod; 470, second electric push rod; 480, first ring plate; 490, second ring plate; 510, spring; 520, first connecting arm; 530, first docking column; 540, second docking column; 550, first hydraulic cylinder; 560, first baffle. Detailed implementation manners

[0036] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] The present invention proposes a method for reproducing tool shanks based on cemented carbide waste and a zinc melting furnace.

[0038] As shown in the attached Figure 1-6As shown in the figure, in an embodiment of a zinc melting furnace for the reproduction of tool holders based on cemented carbide waste proposed by the present invention, the zinc melting furnace for the reproduction of tool holders based on cemented carbide waste includes a furnace tank 110, a zinc melting boat 140, a tank cover 150 and a material taking assembly; an inner cavity is provided inside the furnace tank 110; a partition plate 250 is arranged near the lower part of the inner cavity; the partition plate 250 divides the inner cavity into a zinc melting cavity 120 and a collection cavity 130, and the collection cavity 130 is located below the zinc melting cavity 120; there are multiple zinc melting boats 140; the multiple zinc melting boats 140 are sequentially stacked vertically in the zinc melting cavity 120; a discharge port (not labeled) is provided at the top of the furnace tank 110; the tank cover 150 is detachably arranged on the top of the furnace tank 110 (for example, detachably arranged on the top of the furnace tank 110 through bolts) to seal the discharge port; the material taking assembly includes a first hydraulic cylinder 550, a second hydraulic cylinder (not shown), a first support arm 270, a second support arm (not shown), a support column 320 and a connecting piece; the bases of the first hydraulic cylinder 550 and the second hydraulic cylinder are both connected to the outer wall of the furnace tank 110; the first hydraulic cylinder 550 and the second hydraulic cylinder are symmetric about the central axis of the furnace tank 110; the telescopic end of the first hydraulic cylinder 550 is connected to the first support arm 270, and the telescopic end of the second hydraulic cylinder is connected to the second support arm; the first support arm 270 and the second support arm are parallel to each other, and both sides of the support column 320 are respectively connected to the first support arm 270 and the second support arm, and the first support arm 270 and the second support arm are both perpendicular to the support column 320; the connecting piece is connected to the support column 320; the connecting piece is used to extend into the zinc melting cavity 120 and connect the zinc melting boat 140.

[0039] The zinc melting furnace for the reproduction of tool holders based on cemented carbide waste proposed by the present invention can take out the zinc melting boat 140 from the zinc melting furnace more labor - saving and quickly; the specific operation method is as follows: when in use, first put zinc raw materials and cemented carbide raw materials to be decomposed into the zinc melting boat 140, then stack the multiple zinc melting boats 140 vertically in sequence in the zinc melting cavity 120, then seal the discharge port with the tank cover 150, and start the zinc melting furnace to decompose the cemented carbide; after decomposition is completed, open the tank cover 150, then start the first hydraulic cylinder 550 and the second hydraulic cylinder synchronously to drive the first support arm 270 and the second support arm to move synchronously, so as to drive the connecting piece to extend into the zinc melting cavity 120 and connect the zinc melting boat 140 to the connecting piece, and then start the first hydraulic cylinder 550 and the second hydraulic cylinder synchronously again to drive the first support arm 270 and the second support arm to move synchronously in the reverse direction, so as to drive the connecting piece to extend out of the zinc melting cavity 120 to take out the zinc melting boat 140 from the furnace tank 110. Repeating the above operation can take out all the multiple zinc melting boats 140 from the furnace tank 110 in sequence, which is convenient, fast, time - saving and labor - saving.

[0040] Specifically, the zinc melting furnace for the reproduction of the tool holder based on cemented carbide waste further includes an air outlet pipe 170, an air inlet pipe 180 and an air pump 190; the air inlet pipe 180 is connected to the top of the zinc melting cavity 120; the air outlet pipe 170 is connected to the collection cavity 130; the inlet end of the air pump 190 is connected to the air outlet pipe 170; the outlet end of the air pump 190 is connected to the air inlet pipe 180. And the air inlet pipe 180 is also connected to an injection pipe 220; a first valve 210 is arranged between the injection pipe 220 and the air inlet pipe 180; a second valve 370 is arranged on the air inlet pipe 180; the zinc melting furnace for the production of cemented carbide products further includes a first resistance heating wire (not shown) and a second resistance heating wire (not shown) embedded in the furnace tank 110; the first resistance heating wire is wound around the zinc melting cavity 120, and the second resistance heating wire is wound around the collection cavity 130. The furnace tank 110 is also provided with a zinc discharge pipe 230 communicating with the bottom of the collection bucket 160; a third valve 240 is arranged on the zinc discharge pipe 230.

[0041] The first resistance heating wire is used to heat the zinc melting cavity 120 so that the zinc in the zinc melting crucible 140 evaporates into zinc vapor to decompose the cemented carbide; the second resistance heating wire heats the collection cavity 130, but the temperature in the collection cavity 130 is lower than that in the zinc melting cavity 120.

[0042] Through the above technical solution, the structure and function of the zinc melting furnace for the reproduction of the tool holder based on cemented carbide waste are improved; the injection pipe 220 is connected to the gas source of the external inert gas (such as nitrogen), the first valve 210 is opened, and then the air pump 190 is started, and the inert gas can be driven to circulate along the directions of the air inlet pipe 180, the zinc melting cavity 120, the collection cavity 130 and the air outlet pipe 170, so as to drive the zinc vapor to circulate and flow to the lower collection cavity 130, and the zinc vapor is cooled into zinc liquid to realize the recovery of zinc.

[0043] In addition, as shown in the attached Figure 6 figure, the above-mentioned material taking assembly further includes a vertically arranged first sleeve arm 260 and a second sleeve arm (not shown); both the first sleeve arm 260 and the second sleeve arm are connected to the outer wall of the furnace tank 110; the first sleeve arm 260 and the second sleeve arm are symmetrical about the central axis of the furnace tank 110; the interiors of both the first sleeve arm 260 and the second sleeve arm are hollow.

[0044] The first support arm 270 is slidably inserted through the first sleeve arm 260; the interior of the first support arm 270 is vacuum, and a first baffle 560 is arranged inside the first support arm 270; the base of the first hydraulic cylinder 550 is connected to the inner bottom wall of the first sleeve arm 260, and the telescopic end of the first hydraulic cylinder 550 is connected to the first baffle 560.

[0045] The second support arm is slidably inserted through the second sleeve arm; the interior of the second support arm is vacuum, and a second baffle (not shown) is provided inside the second support arm; the base of the second hydraulic cylinder is connected to the inner bottom wall of the second sleeve arm, and the telescopic end of the second hydraulic cylinder is connected to the second baffle. Through the above technical solution, the structure of the material taking assembly is improved, that is, the sliding of the first support arm 270 and the second support arm is smoother.

[0046] Meanwhile, as shown in the Figure 4 accompanying drawings, the zinc melting boat 140 includes a first wall 390 and a second wall 410 that are parallel to each other; a cavity 380 is formed in the first wall 390, and the cavity 380 is used to place zinc raw materials and hard alloy raw materials to be decomposed; the zinc melting boat 140 is further provided with a plurality of ventilation holes 420 that penetrate through the first wall 390 and the second wall 410; the central axis of the ventilation hole 420 is perpendicular to the first wall 390; a plurality of communication holes 430 are formed in the cavity 380; the number of the communication holes 430 is the same as that of the ventilation holes 420; the communication holes 430 and the ventilation holes 420 are in one-to-one correspondence; one end of the communication hole 430 penetrates through the cavity 380, and the other end of the communication hole 430 penetrates through the corresponding ventilation hole 420.

[0047] The inert gas circulates from top to bottom through the ventilation holes 420 and enters the collection chamber 130, while the zinc vapor formed in the cavity 380 enters the ventilation holes 420 through the communication holes 430 and flows to the lower collection chamber 130 together with the inert gas.

[0048] Specifically, the ventilation holes 420 of two adjacent zinc melting boats 140 are in one-to-one correspondence; the zinc melting boat 140 further includes a docking pipe 340; the number of the docking pipes 340 is the same as that of the ventilation holes 420, and the docking pipes 340 and the ventilation holes 420 are in one-to-one correspondence; the docking pipes 340 are embedded in the corresponding ventilation holes 420 and extend out of the second wall 410; the docking pipes 340 are used to be embedded in the corresponding ventilation holes 420 of the adjacent zinc melting boats 140. The outer diameter of the docking pipe 340 is the same as the inner diameter of the ventilation hole 420; by providing the docking pipes 340, more accurate docking and stacking of adjacent zinc melting boats 140 can be achieved.

[0049] Meanwhile, this zinc melting furnace for the reproduction of the tool handle based on hard alloy waste further includes a collection bucket 160 disposed in the collection chamber 130; the collection bucket 160 is disposed in the collection chamber 130; a plurality of air outlet holes (not shown) are formed in the partition plate 250; the number of the air outlet holes is the same as the number of the ventilation holes 420 of a single zinc melting boat 140, and the air outlet holes and the ventilation holes 420 of a single zinc melting boat 140 are in one-to-one correspondence; the air outlet holes are used to be directly opposite to the corresponding ventilation holes 420. That is, the zinc vapor converges into the collection bucket 160 together with the inert gas through the ventilation holes 420 and the air outlet holes.

[0050] In addition, as shown in the Figure 5As shown, the number of communication holes 430 of a single zinc melting boat 140 is two; the connection line between the two communication holes 430 passes through the central axis of the cavity 380; the central axis of the communication hole 430 is horizontally arranged.

[0051] The connecting piece includes a sleeve 440, a first ring plate 480, a second ring plate 490, a spring 510, a first electric push rod 460, a second electric push rod 470, a first connecting arm 520 and a second connecting arm 360; the sleeve 440 is connected to the support column 320; the first ring plate 480 and the second ring plate 490 are slidably sleeved on the sleeve 440; third baffles 450 and fourth baffles 330 are respectively formed at both ends of the sleeve 440; the third baffle 450, the fourth baffle 330, the first ring plate 480 and the second ring plate 490 are all vertically arranged; the spring 510 is connected between the first ring plate 480 and the second ring plate 490; the spring 510 is in a compressed state so that the first ring plate 480 and the second ring plate 490 tend to move away from each other; the first ring plate 480 is closer to the third baffle 450 than the second ring plate 490; the second ring plate 490 is closer to the fourth baffle 330 than the first ring plate 480.

[0052] The first electric push rod 460 is arranged on the third baffle 450; the first electric push rod 460 is used to drive the first ring plate 480 to slide along the sleeve 440; the second electric push rod 470 is arranged on the fourth baffle 330; the second electric push rod 470 is used to drive the second ring plate 490 to slide along the sleeve 440; the first connecting arm 520 is connected to the first ring plate 480; the second connecting arm 360 is connected to the second ring plate 490; a first docking post 530 is connected to the end of the first connecting arm 520 away from the first ring plate 480; a second docking post 540 is connected to the end of the second connecting arm 360 away from the second ring plate 490; the central axes of the first docking post 530 and the second docking post 540 are both horizontally arranged; the first docking post 530 is used to be embedded in one of the communication holes 430, and the second docking post 540 is used to be embedded in the other communication hole 430.

[0053] Through the above technical solution, the structure of the connecting piece is improved. After the connecting piece extends into the zinc melting cavity 120, the first electric push rod 460 and the second electric push rod 470 will be started synchronously to drive the first ring plate 480 and the second ring plate 490 to approach each other, so that both the first docking post 530 and the second docking post 540 extend into the cavity 380. When the first docking post 530 aligns with one of the communication holes 430 and the second docking post 540 aligns with the other communication hole 430, the first electric push rod 460 and the second electric push rod 470 are shortened synchronously so that the first docking post 530 is embedded in one of the communication holes 430 and the second docking post 540 is embedded in the other communication hole 430, and then the connecting piece can be connected to the zinc melting boat 140; then the first hydraulic cylinder 550 and the second hydraulic cylinder can be started to lift the zinc melting boat 140 out of the furnace tank 110.

[0054] In addition, the sleeve 440 is rotatably sleeved on the support column 320; the material taking assembly further includes a support plate 280, a third hydraulic cylinder 290, and a fourth hydraulic cylinder (not shown); the first sleeve arm 260 is hinged to the outer wall of the furnace pot 110, and the second sleeve arm is hinged to the outer wall of the furnace pot 110; the rotation axes of the first sleeve arm 260 and the second sleeve arm are both horizontally arranged and collinear; the support plate 280 is connected to the outer wall of the furnace pot 110.

[0055] The first sleeve arm 260 is connected with a first connecting plate 310, and the second sleeve arm is connected with a second connecting plate (not shown); the base of the third hydraulic cylinder 290 is hinged to the support plate 280, and the telescopic end of the third hydraulic cylinder 290 is hinged to the first connecting plate 310; the base of the fourth hydraulic cylinder is hinged to the support plate 280, and the telescopic end of the fourth hydraulic cylinder is hinged to the second connecting plate.

[0056] When the first hydraulic cylinder 550 and the second hydraulic cylinder synchronously extend to lift the zinc melting crucible 140 out of the furnace pot 110, the third hydraulic cylinder 290 and the fourth hydraulic cylinder can be synchronously extended to drive the first sleeve arm 260 and the second sleeve arm to rotate, so as to move the zinc melting crucible 140 close to the ground (as shown in the Figure 2 attachment), so as to remove the zinc melting crucible 140 from the connecting piece, so as to facilitate the material taking assembly to lift the next zinc melting crucible 140.

[0057] In the first embodiment of a method for reproducing a tool handle based on hard alloy waste proposed by the present invention, this embodiment includes the following steps:

[0058] Step S110: Using the zinc melting furnace for reproducing the tool handle based on hard alloy waste as described above to decompose the hard alloy raw material into a primary material that is loose, porous and easy to grind fine.

[0059] Step S120: Grinding the primary material into a fine powder through a ball mill.

[0060] Step S130: Extruding the fine material into a rod-shaped formed material.

[0061] Step S140: Primarily drying the formed material.

[0062] Step S150: Sintering the formed material that has been primarily dried through a sintering furnace to form an alloy rod.

[0063] Step S160: Cutting and grinding the alloy rod to form a tool handle.

[0064] The method for recycling and producing tool shanks based on cemented carbide waste proposed by the present invention can recycle and reproduce cemented carbide waste to form tool shanks, which can not only reduce the treatment cost of cemented carbide waste and create a green and low-carbon industry, but also efficiently produce the tool shanks used for drills.

[0065] In the second embodiment of a method for recycling and producing tool shanks based on cemented carbide waste proposed by the present invention, based on the first embodiment, step S160 includes the following steps:

[0066] Step S210: Cut the alloy bar to form a preliminary tool shank.

[0067] Step S220: Grind both ends of the preliminary tool shank by an end grinding machine.

[0068] Step S230: Chamfer the ground preliminary tool shank through a chamfering device to form a tool shank.

[0069] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0070] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc), including several instructions to enable a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0071] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims. All of these are within the protection scope of the present invention.

Claims

1. A zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste, characterized in that, It includes a furnace pot, a zinc melting boat, a pot cover and a material taking assembly; an inner cavity is provided inside the furnace pot; a partition plate is arranged near the lower part of the inner cavity; the partition plate divides the inner cavity into a zinc melting cavity and a collection cavity; there are multiple zinc melting boats; the multiple zinc melting boats are vertically stacked in sequence in the zinc melting cavity; a discharge port is provided at the top of the furnace pot; the pot cover is detachably arranged on the top of the furnace pot to seal the discharge port; the material taking assembly includes a first hydraulic cylinder, a second hydraulic cylinder, a first support arm, a second support arm, a support column and a connecting piece; the bases of the first hydraulic cylinder and the second hydraulic cylinder are both connected to the outer wall of the furnace pot; the first hydraulic cylinder and the second hydraulic cylinder are symmetrical about the central axis of the furnace pot; the telescopic end of the first hydraulic cylinder is connected to the first support arm, and the telescopic end of the second hydraulic cylinder is connected to the second support arm; both sides of the support column are respectively connected to the first support arm and the second support arm; the connecting piece is connected to the support column; the connecting piece is used to extend into the zinc melting cavity and connect the zinc melting boat. The material taking assembly further includes a vertically arranged first sleeve arm and a second sleeve arm; both the first sleeve arm and the second sleeve arm are connected to the outer wall of the furnace pot; the first support arm slidably penetrates through the first sleeve arm; a first baffle is arranged inside the first support arm; the base of the first hydraulic cylinder is connected to the inner bottom wall of the first sleeve arm, and the telescopic end of the first hydraulic cylinder is connected to the first baffle; the second support arm slidably penetrates through the second sleeve arm; a second baffle is arranged inside the second support arm; the base of the second hydraulic cylinder is connected to the inner bottom wall of the second sleeve arm, and the telescopic end of the second hydraulic cylinder is connected to the second baffle.

2. The zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste according to claim 1, characterized in that, The zinc melting boat includes a first wall and a second wall that are parallel to each other; a cavity is provided on the first wall; the zinc melting boat is also provided with a plurality of ventilation holes that penetrate the first wall and the second wall; a plurality of communication holes are provided in the cavity; one end of the communication hole penetrates the cavity, and the other end of the communication hole penetrates the corresponding ventilation hole; the ventilation holes of two adjacent zinc melting boats correspond to each other one by one.

3. The zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste according to claim 2, characterized in that, It further includes a collection bucket arranged in the collection cavity; a plurality of air outlet holes are provided on the partition plate; the air outlet holes and the ventilation holes of a single zinc melting boat correspond to each other one by one; the air outlet holes are used to be directly opposite to the corresponding ventilation holes.

4. The zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste according to claim 3, characterized in that, It further includes an air outlet pipe, an air inlet pipe and an air pump; the air inlet pipe is communicated with the top of the zinc melting cavity; the air outlet pipe is communicated with the collection cavity; the inlet end of the air pump is communicated with the air outlet pipe; the outlet end of the air pump is communicated with the air inlet pipe; the air inlet pipe is also communicated with an injection pipe; a first valve is also arranged between the injection pipe and the air inlet pipe.

5. The zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste according to claim 3, characterized in that, A zinc discharge pipe that is communicated with the bottom of the collection bucket penetrates through the furnace pot; a third valve is arranged on the zinc discharge pipe.

6. The zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste according to claim 2, characterized in that, The number of the communication holes is two; the connecting member includes a sleeve, a first ring plate, a second ring plate, a first electric push rod, a second electric push rod, a first connecting arm and a second connecting arm; the sleeve is connected to the support column; the first ring plate and the second ring plate are slidably sleeved on the sleeve; the first electric push rod is used to drive the first ring plate to slide along the sleeve; the second electric push rod is used to drive the second ring plate to slide along the sleeve; the first connecting arm is connected to the first ring plate; the second connecting arm is connected to the second ring plate; the first connecting arm is connected with a first docking post; the second connecting arm is connected with a second docking post; the first docking post is used to be embedded in one of the communication holes, and the second docking post is used to be embedded in the other communication hole.

7. The zinc melting furnace for the reproduction of tool shanks based on cemented carbide waste according to claim 6, characterized in that, The central axes of the first docking post and the second docking post are both horizontally arranged.

8. A method for the reproduction of tool shanks based on cemented carbide waste, characterized in that, including: Using the tool handle reproduction zinc melting furnace based on cemented carbide waste as described in claim 1 to decompose the cemented carbide raw material into a loose and porous initial material that is easy to grind finely; Grinding the initial material into a fine powder by a ball mill; Extruding the fine powder into a rod-shaped formed material; Primarily drying the formed material; Sintering the formed material that has completed primary drying through a sintering furnace to form an alloy rod; Cutting and grinding the alloy rod to form a tool handle.

9. The method for the reproduction of tool shanks based on cemented carbide waste according to claim 8, characterized in that, The step of cutting and grinding the alloy rod to form a tool handle includes: Cutting the alloy rod to form a tool handle initial material; Grinding both ends of the tool handle initial material by an end grinding machine; Chamfering the ground tool handle initial material through a chamfering device to form a tool handle.

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