Automatic numerical control processing equipment for graphite crucible

Abstract

The application relates to the mixing technology field of a mixing pot, and particularly provides an automatic numerical control processing equipment for a graphite crucible, which comprises a base, a pot body arranged on the base, a sealing cover arranged at the upper end of the pot body, two Z-shaped stirring knives rotationally arranged in the pot body, and a conical lining plate arranged at the bottom end in the pot body. The lining plate in the pot body is conical, the rotating track of the Z-shaped stirring knife is also a conical body, when the gap between the two exceeds a preset range due to abrasion, the Z-shaped stirring knife can be axially moved along the small end of the conical lining plate, so that the gap is restored to a reasonable range, the stirring knife does not need to be frequently disassembled for surfacing and polishing, and the influence of maintenance time on mixing efficiency is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the kneading pot mixing technical field, in particular to a kind of automatic numerical control processing equipment of graphite crucible. BACKGROUND

[0002] Kneading pot is the special stirring mixing equipment of carbon industry, mainly used for the uniform mixing of carbon material and pitch and other materials, and graphite crucible, also known as copper melting bag, copper melting, is a kind of crucible made of graphite, clay, silica and talc, which is mainly used for smelting non-ferrous metals such as red copper, brass, gold, silver, zinc and lead and their alloys, and the material for making graphite crucible needs to use kneading pot to mix the raw materials such as graphite, clay, silica and talc.

[0003] For example, Chinese patent CN222093021U discloses a special kneading pot for carbon, which drives the rotating shaft by motor, and the belt rotates on the lower and upper pulleys under the drive of the motor and rotating shaft. At this time, the lower and upper stirring paddles rotate under the rotation of the lower and upper pulleys. At this time, the carbon entering the pot body is stirred and turned in the pot body by the upper and lower stirring paddles, thereby performing stirring operation on the carbon in the pot body.

[0004] However, the stirring paddle and the interior of the kneading pot will be worn during stirring process, and the gap between the stirring paddle and the pot wall requires extremely strict, when the wear degree exceeds the preset range, the gap between the stirring paddle and the interior of the kneading pot will increase, thereby reducing the mixing and stirring effect. In order to avoid the residual dry material in the dead angle of the pot, which is not fully stirred, it is necessary to regularly check the wear condition of the stirring paddle and the pot, and the stirring paddle and the lining plate need to be repaired or replaced when the set value is exceeded. The frequency of repair or replacement is high, which leads to low mixing and stirring efficiency. SUMMARY

[0005] Therefore, it is necessary to provide an automatic numerical control processing equipment of graphite crucible to solve the problem of low overall mixing and stirring efficiency caused by high frequency of repair or replacement of stirring paddle and lining plate.

[0006] The above-mentioned purpose is realized by the following technical scheme:

[0007] An automatic numerical control processing equipment of graphite crucible, comprising:

[0008] A base is provided with a pot body, the pot body is used to fill dry material and wet material, the upper end of the pot body is provided with a sealing cover, and the inner bottom end of the pot body is provided with two conical lining plates, the large end and the small end of the two conical lining plates are reversely arranged.

[0009] Two Z-shaped stirring knives, two Z-shaped stirring knives are rotatably arranged in the pot body, the rotation axes of the two Z-shaped stirring knives are parallel to each other and are in the same horizontal plane, when the two Z-shaped stirring knives rotate around their own axes, the trajectories swept by the two Z-shaped stirring knives form two conical bodies, and the large end and the small end of the two conical bodies are in opposite directions, the two Z-shaped stirring knives are matched with the two conical lining plates, and the two Z-shaped stirring knives are configured to move axially towards the small end of the two conical lining plates by a preset distance when the degree of wear of the conical lining plate or the Z-shaped stirring knife exceeds a preset range.

[0010] A driving assembly is arranged for driving the two Z-shaped stirring knives to rotate around their own axes.

[0011] A plurality of mounting plates are detachably connected to the rotating shafts at the two ends of the two Z-shaped stirring knives, and the distance between the small end of the conical lining plate and the side wall of the pot body near the two Z-shaped stirring knives is positively correlated with the number of mounting plates on the rotating shaft near the small end of the conical lining plate.

[0012] Further, the Z-shaped stirring knife comprises a connecting rod and a spiral rod, the two ends of the connecting rod are connected to the spiral rods, and the connecting rod is perpendicular to the two spiral rods, and the pitch of one of the two spiral rods near the large end of the conical lining plate is greater than the pitch of the other spiral rod near the small end of the conical lining plate.

[0013] Further, the air pressure inside the pot body is alternately switched from negative pressure to normal pressure, and the pot body is under negative pressure when the wet material enters the pot body.

[0014] Further, a vacuum pump is arranged outside the pot body, and an air exhaust pipe of the vacuum pump is in communication with the inside of the pot body.

[0015] Further, an arc-shaped plate is arranged at the upper end of the sealing cover, a sealing cavity is formed between the arc-shaped plate and the sealing cover, an air exhaust pipe of the vacuum pump is in communication with the sealing cavity, the sealing cavity is in communication with the inside of the pot body, and a valve is arranged at the position where the sealing cavity is in communication with the pot body, and the valve is used to open or block the communication position of the sealing cavity and the pot body.

[0016] Further, a hole-disc is rotatably connected to the rotating shaft at the large end of the two Z-shaped stirring knives, a plurality of through-holes are arranged on the surface of the hole-disc, the hole-disc is fixedly connected to the inner wall of the pot body and has a space therebetween, and the space is in communication with the sealing cavity and the pot body.

[0017] Further, a support frame is fixedly arranged on the base, a connecting rod is hingedly connected to the top of the support frame, one end of the connecting rod is hingedly connected to the top end of the arc-shaped plate, the other end of the connecting rod is connected to one end of a first telescopic cylinder, and the other end of the first telescopic cylinder is hingedly connected to the lower part of the support frame.

[0018] Further, the driving assembly comprises a driving motor and a speed reducer, both of which are fixedly arranged on the base, the rotating shaft of the driving motor is coaxial with and fixedly connected with the input shaft of the speed reducer, and the output shaft of the speed reducer is coaxial with and fixedly connected with one of the two Z-shaped stirring knife rotating shafts, and the outer periphery of the two Z-shaped stirring knife rotating shafts is coaxially and fixedly provided with transmission gears, and the two transmission gears are in mesh with each other.

[0019] Further, the pot body is hingedly arranged on the base, and a second telescopic cylinder is arranged on the base, one end of the second telescopic cylinder is hingedly arranged on the outer side wall of the pot body, and the other end of the second telescopic cylinder is hingedly arranged on the base.

[0020] The beneficial effects of the present application are:

[0021] The present application has the beneficial effects that:

[0022] The present application has the beneficial effects that:

[0023] The present application has the beneficial effects that:

[0024] The present application has the beneficial effects that: BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The structure schematic view of the automatic numerical control machining equipment for graphite crucible provided by an embodiment of the present application is shown in the figure.

[0026] Figure 2 The structure schematic view of the automatic numerical control machining equipment for graphite crucible provided by an embodiment of the present application is shown in the figure.

[0027] Figure 3 The structure schematic view of the automatic numerical control machining equipment for graphite crucible provided by an embodiment of the present application is shown in the figure.

[0028] Figure 4 For Figure 3 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of A-A;

[0029] Figure 5 For Figure 4 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0030] Figure 6 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0031] Figure 7 For Figure 6 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0032] Figure 8 For Figure 6 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0033] Figure 9 For Figure 6 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0034] Figure 10 For Figure 9 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0035] Figure 11 For Figure 10 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0036] Figure 12 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0037] Figure 13 The automatic numerical control processing equipment for graphite crucible provided in an embodiment along the sectional view of B-B;

[0038] Wherein:

[0039] 100, base; 110, support plate; 111, rotating groove; 120, fixed block; 130, support frame; 140, straight rod; 150, arc-shaped rod; 160, first telescopic cylinder; 170, second telescopic cylinder;

[0040] 200, pot body; 210, sealing cover; 220, arc plate; 221, sealing cavity; 230, vacuum pump; 240, exhaust pipe; 250, connecting pipe; 260, valve; 270, conical lining plate; 280, perforated disc; 290, through hole;

[0041] 300, zigzag stirring blade; 301, connecting rod; 302, screw rod; 310, rotating shaft; 311, convex strip; 320, fixed plate; 330, mounting plate; 340, rectangular groove; 350, groove; 360, connecting plate; 370, baffle;

[0042] 400, driving motor; 410, speed reducer; 420, input shaft; 430, output shaft; 440, transmission gear. DETAILED DESCRIPTION

[0043] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0044] In this document, the ordinal numbers for components, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0046] The present application provides an automatic numerical control processing equipment for graphite crucible. Figures 1-13 The present application provides an automatic numerical control processing equipment for graphite crucible.

[0047] The application discloses an automatic numerical control processing equipment for graphite crucible, which is suitable for mixing and stirring of raw materials for manufacturing graphite crucible. The equipment comprises a base 100, wherein a pot body 200 is arranged on the base 100, the pot body 200 is internally used for loading dry materials and wet materials which need to be stirred, the main components of the dry materials are graphite, refractory aggregate and solid additives, the main components of the wet materials are adhesive and auxiliary liquid, the adhesive comprises coal tar pitch, phenolic resin and the like. A sealing cover 210 is arranged at the upper end of the pot body 200, two Z-shaped stirring knives 300 are arranged in the pot body 200, the two Z-shaped stirring knives 300 are used for stirring the dry materials and the wet materials in the pot body 200, meanwhile, a driving assembly is arranged on the base 100, the driving assembly is used for driving the two Z-shaped stirring knives 300 to rotate so as to stir the dry materials and the wet materials. In the stirring process, the dry materials are firstly stirred and mixed, so that the various components of the dry materials are uniformly mixed, then the wet materials are mixed into the pot body 200 and uniformly mixed with the dry materials. However, with the increase of the use time of the pot body 200, the inner wall of the pot body 200 and the Z-shaped stirring knives 300 will be abraded, which is a normal phenomenon. Therefore, the abrasion conditions of the inner wall of the pot body 200 and the Z-shaped stirring knives 300 need to be regularly checked. Since the distance between the inner wall of the pot body 200 and the Z-shaped stirring knives 300 needs to be very strict, when the abrasion degree is large and the distance between the inner wall of the pot body 200 and the Z-shaped stirring knives 300 exceeds the preset range (the preset range is within 8-10 mm), the stirring and mixing effect of the dry materials and the wet materials will be poor. Therefore, the inner wall of the pot body 200 and the Z-shaped stirring knives 300 need to be regularly checked. When the abrasion degree of the inner wall of the pot body 200 or the Z-shaped stirring knives 300 is large, an operator will dismount the Z-shaped stirring knives 300 and perform surfacing and polishing on the Z-shaped stirring knives 300, so that the distance between the inner wall of the pot body 200 and the Z-shaped stirring knives 300 is ensured to be within the preset range, and the mixing effect of the dry materials and the wet materials is ensured. However, normal abrasion cannot be avoided. In the prior art, the Z-shaped stirring knives 300 need to be repaired or replaced frequently, and the surfacing and polishing on the Z-shaped stirring knives 300 consume a long time every time, which affects the stirring efficiency of the dry materials and the wet materials.

[0048] Based on this, the application is provided with two conical lining plates 270 at the bottom end inside the pot body 200, the conical lining plate 270 is a half cone, and is a half cone cut along the plane where the axis is, the large end and the small end of the two conical lining plates 270 are reversely arranged, that is, the large end of one conical lining plate 270 corresponds to the small end of the other conical lining plate 270, at the same time, the application improves the two Z-shaped stirring knives 300, the track swept by the traditional Z-shaped stirring knife 300 when rotating around its own axis is a cylinder, the track swept by the Z-shaped stirring knife 300 of the application when rotating around its own axis is a cone, and the large end and the small end of the two Z-shaped stirring knives 300 are also reversely arranged to adapt to the two conical lining plates 270, specifically, the large end of the two Z-shaped stirring knives 300 respectively corresponds to the large end of the two conical lining plates 270, the small end of the two Z-shaped stirring knives 300 respectively corresponds to the small end of the two conical lining plates 270, the distance between the conical body track formed by the rotation of the two Z-shaped stirring knives 300 around its own axis and the conical lining plate 270 is within a preset range, with the increase of the use time, the conical lining plate 270 or the Z-shaped stirring knife 300 is inevitably worn, after the wear, the distance between the two increases, when the distance exceeds the preset range, the axial distance of the two Z-shaped stirring knives 300 can be adjusted, specifically, the two Z-shaped stirring knives 300 are pushed to move a preset distance in the direction of approaching the small end of the conical lining plate 270 along the axial direction (the preset distance refers to the distance required to move so that the distance between the Z-shaped stirring knife 300 and the conical lining plate 270 is within the preset range after the movement, the preset distance is related to the taper of the conical lining plate 270, which is not limited here), so that the distance between the conical body track formed by the rotation of the Z-shaped stirring knife 300 around its own axis and the conical lining plate 270 is shortened, and is restored to the preset range, thereby the frequency of surfacing and polishing of the Z-shaped stirring knife 300 can be reduced.

[0049] It can be understood that, through the arrangement of the conical lining 270 and the Z-shaped stirring blade 300 of the present application, when the Z-shaped stirring blade 300 is worn, the distance between the Z-shaped stirring blade 300 and the conical lining 270 can be maintained by axial movement, avoiding frequent maintenance of the Z-shaped stirring blade 300. For example, assuming that under normal use, the conventional Z-shaped stirring blade 300 is worn after two months, causing the distance between the Z-shaped stirring blade 300 and the inner wall of the kettle body 200 to exceed the preset range, at which time the Z-shaped stirring blade 300 needs to be disassembled and surfacing polished. However, in the present application, when the Z-shaped stirring blade 300 is worn after two months, it only needs to be axially moved to maintain the distance between the Z-shaped stirring blade 300 and the conical lining 270 within the preset range, without the need for surfacing polishing of the Z-shaped stirring blade 300. Only after multiple wearings does the Z-shaped stirring blade 300 need to be disassembled and surfacing polished. Compared with the conventional Z-shaped stirring blade 300 which needs to be frequently disassembled and surfacing polished, the Z-shaped stirring blade 300 needs to be axially moved for a shorter time, thereby reducing the impact on the mixing efficiency of dry and wet materials.

[0050] Specifically, as shown in Figure 2 、 Figure 6 、 Figure 7 and Figure 8 , the two ends of the two Z-shaped stirring blades 300 in the embodiment of the present application are respectively rotatably arranged on the kettle body 200. A plurality of mounting plates 330 are detachably arranged on the shaft 310. The mounting plates 330 are connected between the shaft 310 and the two ends of the Z-shaped stirring blade 300, so that the small end of the Z-shaped stirring blade 300 is separated from the inside of the kettle body 200 by the mounting plate 330. The more the number of mounting plates 330, the farther the distance between the inside wall of the kettle body 200 and the small end of the Z-shaped stirring blade 300. In the present embodiment, two mounting plates 330 are arranged at the two ends of the shaft 310, respectively. The two ends of the Z-shaped stirring blade 300 are respectively fixedly connected with a fixed plate 320. The fixed plate 320 is coaxially connected with the two mounting plates 330. The two Z-shaped stirring blades 300 are mounted on the shaft 310 through the two fixed plates 320 and the four mounting plates 330, as shown in Figure 6 and Figure 7 . When the two Z-shaped stirring blades 300 need to be axially moved due to wear, the operator can disassemble the mounting plates 330 on the small end and the large end of the Z-shaped stirring blade 300 close to the small end of the conical lining 270, and install the mounting plates 330 to the positions away from the small end of the conical lining 270, so that the Z-shaped stirring blade 300 can be moved as a whole to the small end of the conical lining 270. The specific state change is shown in Figures 7 to 8 , and the distance between the Z-shaped stirring blade 300 and the conical lining 270 is within the preset range after axial movement.

[0051] It should be noted that the required distance between the Z-shaped stirring blade 300 and the conical lining 270 is 8-10 mm, assuming that the Z-shaped stirring blade 300 and the conical lining 270 are worn to expand the distance between the Z-shaped stirring blade 300 and the conical lining 270 to 14 mm, at this time, according to the above operation, the mounting plate 330 is replaced, the Z-shaped stirring blade 300 is moved axially as a whole, so that the distance between the Z-shaped stirring blade 300 and the conical lining 270 is 9 mm, since two mounting plates 330 are taken as an example in the embodiment, the two mounting plates 330 can be moved axially twice, and the Z-shaped stirring blade 300 needs to be surfacing and polishing after moving axially twice and restoring the initial position of the two mounting plates 330, compared with the traditional surfacing and polishing frequency of the Z-shaped stirring blade 300 each time, the surfacing and polishing frequency can be effectively reduced, if multiple mounting plates 330 are provided, the mounting plates 330 can be moved axially multiple times, the number of mounting plates 330 can be set according to actual needs, which is not limited here.

[0052] Specifically, as shown in Figure 10 and Figure 11 In order to facilitate the coaxial connection of the fixing plate 320 and the mounting plate 330 with the rotating shaft 310, a convex strip 311 is fixedly arranged on the outer periphery of the rotating shaft 310, and a connecting groove is formed at the center of the fixing plate 320 and the mounting plate 330, and a rectangular groove 340 is arranged on the inner periphery of the connecting groove, when the fixing plate 320 and the mounting plate 330 are sleeved on the rotating shaft 310, the convex strip 311 is located in the rectangular groove 340, so that the fixing plate 320 and the mounting plate 330 are coaxially connected with the rotating shaft 310, and the baffle 370 is detachably connected with the end of the rotating shaft 310 through bolts, and the baffle 370 is used to block the fixing plate 320 and the mounting plate 330 from being separated from the rotating shaft 310.

[0053] More specifically, in order to facilitate the disassembly of the mounting plate 330 at the end of the Z-shaped stirring blade 300, the mounting plate 330 in the embodiment has the structure as shown in Figure 12 The mounting plate 330 is connected by bolts from two half-ring plates, and the inner ring of the upper half-ring plate has the above-mentioned rectangular groove 340, and the convex strip 311 is located in the rectangular groove 340, so that the mounting plate 330 is coaxially connected with the rotating shaft 310, and the outer ring of the upper half-ring plate has a recess 350, and the connecting plate 360 is connected in the recess 350 through bolts, the connecting plate 360 has two, the two connecting plates 360 are clamped with each other, and the two connecting plates 360 can be clamped or unclamped with each other when moving in the vertical direction, and the connecting plate 360 can be clamped with the end of the Z-shaped stirring blade 300.

[0054] It should be noted that, as shown in Figure 6 and Figure 7As shown, before the Z-shaped stirring blade 300 is axially moved, only the mounting plate 330 at the small end of the Z-shaped stirring blade 300 is mounted with the connecting plate 360, and the mounting plate 330 at the large end is not mounted with the connecting plate 360. When the Z-shaped stirring blade 300 is axially moved, the mounting plate 330 at the right side of the small end is dismounted and exchanged to the left side of the fixed plate 320, and the specific changes are as follows Figures 7 to 8 As shown, the groove 350 of the mounting plate 330 is no longer connected with the connecting plate 360, but abuts on the small end of the Z-shaped stirring blade 300, and at the same time, the connecting plate 360 on the exchanged mounting plate 330 needs to be connected into the groove 350 of the dismounted mounting plate 330 at the large end, so as to ensure the connection stability of the Z-shaped stirring blade 300 and the rotating shaft 310 after the axial movement.

[0055] In a further embodiment, the Z-shaped stirring blade 300 of the present application is composed of two parts, specifically composed of a middle connecting rod 301 part and a spiral rod 302 part at both ends, the middle connecting rod 301 part is connected with the spiral rod 302 part at both ends respectively, and the middle connecting rod 301 part is perpendicular to the spiral rod 302 part at both ends respectively, so as to form a shape similar to the letter Z.

[0056] It should be noted that, as shown in the figure, Figure 13 As shown, the left spiral rod 302 part is close to the large end of the conical lining plate 270, and the right spiral rod 302 part is close to the small end of the conical lining plate 270, and the pitch of the left spiral rod 302 is greater than the pitch of the right spiral rod 302, so that the pitch of the Z-shaped stirring blade 300 close to the large end side of the conical lining plate 270 is greater than the pitch close to the small end side of the conical lining plate 270. Since the trajectory formed by the Z-shaped stirring blade 300 around its own axis is a conical body, and the angular velocity of rotation is the same, the linear velocity at the large end of the Z-shaped stirring blade 300 is greater than that at the small end, which will make the material moving speed at the large end of the Z-shaped stirring blade 300 higher, thereby causing the wear degree at the large end position of the Z-shaped stirring blade 300 to be greater than the wear degree at the small end position. Therefore, in order to make the wear degree at the large end and the small end position of the Z-shaped stirring blade 300 the same, the present application sets the pitch close to the large end of the Z-shaped stirring blade 300 to be greater than the pitch close to the small end, so as to quickly input the material from the large end to the small end, thereby reducing the wear of the material at the large end of the Z-shaped stirring blade 300, and further balancing the wear of the large end and the small end of the Z-shaped stirring blade 300.

[0057] It can be understood that the screw rod 302 of the Z-shaped stirring blade 300 can convey the material from the large end to the small end when rotating, and under the premise of the same rotating speed, the greater the pitch of the screw rod 302, the more the material conveyed per unit time, that is, the faster the conveying speed of the material, so that the material at the large end can be quickly conveyed to the small end, even if the linear speed at the large end is fast, but the amount of material is small, and the linear speed at the small end is slow, but the amount of material is large, thereby balancing the wear of the large end and the small end of the Z-shaped stirring blade 300.

[0058] In further embodiments, the degree of combination of dry and wet materials is a very important indicator. Dry and wet materials will stick to each other when mixed, but there will be gaps in the sticking process. The more the gaps, the lower the degree of combination. It is difficult to fully combine dry and wet materials by relying on the Z-shaped stirring blade 300 to stir, so the present application alternately switches the air pressure inside the pot body 200 from negative pressure to positive pressure during stirring, so that the air pressure inside the pot body 200 changes constantly. When the wet material is filled into the pot body 200, the inside of the pot body 200 is in a negative pressure state close to a vacuum state, and the pores on the surface of the wet material are also in a negative pressure state. The two Z-shaped stirring blades 300 can mix the wet and dry materials, and the dry material can approach the pores on the surface of the wet material. When the air pressure inside the pot body 200 returns to normal, the gas will push the dry material into the pores on the surface of the wet material, so the degree of combination of the dry and wet materials will be improved, and the air pressure inside the pot body 200 changes constantly, so that the gaps inside are gradually filled, and the degree of combination of the dry and wet materials is further improved by the stirring action of the Z-shaped stirring blade 300.

[0059] Specifically, the pot body 200 in the present embodiment is provided with a vacuum pump 230, and the suction pipe (not shown in the figure) of the vacuum pump 230 is connected to the pot body 200. When the vacuum pump 230 is started, the gas inside the pot body 200 can be pumped out, so that the gas inside the pot body 200 is in a negative pressure state, and after a set interval, the gas is filled into the pot body 200 to reset the normal pressure state of the gas inside the pot body 200.

[0060] In further embodiments, as Figure 1 and Figure 2As shown, the upper end of the sealing cover 210 is provided with an arc-shaped plate 220, and a sealing cavity 221 is formed between the arc-shaped plate 220 and the sealing cover 210. The inside of the sealing cavity 221 is connected with the inside of the pot body 200 through a connecting pipe 250, and a valve 260 is arranged on the connecting pipe 250. The connecting pipe 250 connects the sealing cavity 221 with the inside of the pot body 200, and the valve 260 can open or block the connecting pipe 250, so as to open or block the communication between the sealing cavity 221 and the inside of the pot body 200. In the embodiment, the exhaust pipe 240 of the vacuum pump 230 is communicated with the sealing cavity 221. The vacuum pump 230 draws the gas in the inside of the pot body 200 into the sealing cavity 221. The gas in the sealing cavity 221 is in a positive pressure state. When the gas in the inside of the pot body 200 is in a negative pressure state, the valve 260 on the connecting pipe 250 is closed. When the gas in the inside of the pot body 200 needs to be restored to normal pressure, the valve 260 is opened. The gas in the inside of the sealing cavity 221 enters the inside of the pot body 200 through the connecting pipe 250, so as to restore the gas in the inside of the pot body 200 to normal pressure.

[0061] It can be understood that, by arranging the sealing cavity 221 and storing the gas in the inside of the pot body 200 into the sealing cavity 221, the gas drawn from the inside of the pot body 200 can be prevented from contacting the outside, so as to avoid the material in the gas from being scattered outside, and reduce the loss of the material.

[0062] In a further embodiment, as shown in Figure 4 and Figure 5 shown, the two Z-shaped stirring knives 300 are rotatably connected with a hole disc 280 at the large end of the Z-shaped stirring knife 300. The hole disc 280 is fixedly connected with the inner wall of the pot body 200 and has a space therebetween. The space is communicated with the connecting pipe 250, so as to communicate the space with the sealing cavity 221. Meanwhile, the space is communicated with the inside of the pot body 200 through a plurality of through holes 290. When the valve 260 on the connecting pipe 250 is opened, the gas in the sealing cavity 221 can enter the space through the connecting pipe 250, and then enter the inside of the pot body 200 through the plurality of through holes 290. Since the through holes 290 are located at the large end of the Z-shaped stirring knife 300, the gas entering the inside of the pot body 200 can blow the material at the large end. The blowing direction of the gas is from the large end to the small end of the Z-shaped stirring knife 300. On the one hand, the blowing direction can increase the conveying speed of the material at the large end to some extent. On the other hand, the blowing direction can increase the stirring and mixing effect of the material at the large end.

[0063] Specifically, as shown in Figure 1 and Figure 2As shown, in order to facilitate the opening and closing of the sealing cover 210, the base 100 of the present application is further provided with a support frame 130, the support frame 130 is hingedly connected with a connecting rod, the connecting rod is composed of a straight rod 140 and an arc-shaped rod 150, one end of the straight rod 140 is fixedly connected with one end of the arc-shaped rod 150, the end of the arc-shaped rod 150 away from the straight rod 140 is hingedly connected with the top of the arc-shaped plate 220, and the middle position of the straight rod 140 is hingedly connected with the support frame 130, one end of the straight rod 140 away from the arc-shaped rod 150 is hingedly connected with one end of a first telescopic cylinder 160, the other end of the first telescopic cylinder 160 is hingedly connected with the lower part of the support frame 130, when the first telescopic cylinder 160 is shortened, the straight rod 140 can be rotated around the hinged position, the arc-shaped rod 150 drives the arc-shaped plate 220 to move upward to open the sealing cover 210, and when the first telescopic cylinder 160 is elongated, the arc-shaped rod 150 drives the arc-shaped plate 220 to move downward to seal the upper end of the pot body 200.

[0064] In further embodiments, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , the driving assembly of the present application comprises a driving motor 400 and a speed reducer 410, the driving motor 400 and the speed reducer 410 are both fixed on the base 100, the rotating shaft of the driving motor 400 is coaxial with and fixedly connected with the input shaft 420 of the speed reducer 410, and the output shaft 430 of the speed reducer 410 is coaxial with and fixedly connected with one of the rotating shafts 310 of the two Z-shaped stirring blades 300, in order to make the two Z-shaped stirring blades 300 rotate synchronously and in opposite directions, two transmission gears 440 are coaxially and fixedly arranged outside the two rotating shafts 310, the two transmission gears 440 are in mesh with each other, when the driving motor 400 rotates, the output shaft 430 of the speed reducer 410 rotates slowly through the speed reduction effect of the speed reducer 410, thereby driving the two Z-shaped stirring blades 300 to rotate simultaneously.

[0065] Specifically, as shown in Figure 1As shown, the pot body 200 in the embodiment is hinged on the base 100, specifically two rotating shafts 310 of two Z-shaped stirring knives 300 are hinged on the base 100, for the convenience of hinging, two support plates 110 perpendicular to the base 100 are fixedly arranged on the base 100, two rotating grooves 111 are formed on each of the two support plates 110, and a fixing block 120 is detachably installed on one of the rotating grooves 111, the fixing block 120 is used for preventing the rotating shaft 310 from being separated from the support plate 110. A second telescopic cylinder 170 is also arranged on the base 100, one end of the second telescopic cylinder 170 is hinged with the base 100, and the other end of the second telescopic cylinder 170 is hinged with the outer side wall of the pot body 200, when the sealing cover 210 on the pot body 200 is opened, the second telescopic cylinder 170 can be telescopically extended to dump or reset the pot body 200, so that the mixed materials in the pot body 200 can be discharged.

[0066] The specific working process of the automatic numerical control processing equipment for graphite crucible provided by the application is described in combination with the above embodiment.

[0067] Mixing dry materials:

[0068] The first telescopic cylinder 160 is shortened to open the sealing cover 210, the operator inputs dry materials into the pot body 200, the first telescopic cylinder 160 is lengthened to abut the sealing end cover on the upper end of the pot body 200 so as to seal the pot body 200, the driving motor 400 is started, the driving motor 400 drives the two Z-shaped stirring knives 300 to rotate slowly through the speed reducer 410, so as to uniformly stir and mix the dry materials in the pot body 200.

[0069] Mixing dry materials and wet materials:

[0070] After the dry materials are mixed evenly, the first telescopic cylinder 160 is shortened to open the sealing cover 210, and the operator inputs the wet materials into the kettle body 200. The first telescopic cylinder 160 is extended to abut the sealing end cover on the upper end of the kettle body 200, so as to seal the kettle body 200. At the same time, the vacuum pump 230 is started, and the vacuum pump 230 exhausts the gas in the kettle body 200 and stores it in the sealing cavity 221 between the sealing cover 210 and the arc-shaped plate 220. At this time, the inside of the kettle body 200 is in a negative pressure state close to a vacuum state, so that the surface gap of the wet materials is also in a negative pressure state. When the two Z-shaped stirring knives 300 are stirred, the dry materials mixed evenly are close to the gap of the wet material surface. With the continuous stirring of the two Z-shaped stirring knives 300, the dry materials and the wet materials are mixed evenly. When the valve 260 on the connecting pipe 250 is opened, the gas in the sealing cavity 221 enters the space between the perforated disc 280 and the inner wall of the kettle body 200 through the connecting pipe 250, and then enters the kettle body 200 through the through hole 290 on the perforated disc 280. The gas pressure in the kettle body 200 returns to normal, and the gas pressure in the kettle body 200 extrudes the dry materials into the gap of the wet material surface, thereby improving the combination degree of the dry materials and the wet materials. When the gas blows into the kettle body 200 from the through hole 290, it can blow the materials at the large end of the two Z-shaped stirring knives 300, thereby improving the moving speed of the materials at this position and improving the mixing uniformity of the materials at this position.

[0071] Discharging:

[0072] When the dry materials and the wet materials in the kettle body 200 are mixed evenly, the first telescopic cylinder 160 is shortened to open the sealing cover 210, and the second telescopic cylinder 170 is extended to make the kettle body 200 rotate around the hinge position to be poured, so as to discharge the mixed materials in the kettle body 200.

[0073] Normal wear:

[0074] With the increase of the use time of the kettle body 200, the conical lining plate 270 and the two Z-shaped stirring knives 300 in the kettle body 200 will be worn, and the distance between the conical lining plate 270 and the two Z-shaped stirring knives 300 will gradually increase. When the distance exceeds the preset range, the operator removes one of the mounting plates 330 and the connecting plates 360 at both ends of the two Z-shaped stirring knives 300 and changes the installation position, so that the two Z-shaped stirring knives 300 as a whole move along the axial direction to the direction close to the small end of the conical lining plate 270, so that the distance between the conical lining plate 270 and the two Z-shaped stirring knives 300 is restored to within the preset range, avoiding frequent surfacing and polishing of the two Z-shaped stirring knives 300, saving time and improving the stirring and mixing efficiency.

[0075] Any combination of the technical features in the above embodiments can be made, and for the sake of brevity, not all possible combinations are described above. However, any combination of the technical features is deemed to be within the scope of the present disclosure as long as such a combination does not result in an inconsistency.

[0076] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An automated numerical control processing apparatus for graphite crucibles, characterized by, The utility model provides a kind of dry and wet material mixing device, including: Base, pot is provided on the base, the pot is used to fill dry material and wet material, the pot upper end is provided with sealing cover, the pot inside bottom end is provided with two conical lining, the big end and the small end of two conical lining are reversely arranged; Two Z-shaped stirring knives, two Z-shaped stirring knives rotation are arranged in the pot inside, the rotation axis of two Z-shaped stirring knives is parallel and in the same horizontal plane, when two Z-shaped stirring knives rotate around its axis, the track swept by each other forms conical body, and the big end and the small end of two conical bodies are opposite, two Z-shaped stirring knives are adapted to two conical lining, two Z-shaped stirring knives are configured to when conical lining or Z-shaped stirring knife wear degree exceeds preset range, respectively to the small end of two conical lining axial movement preset distance; Driving assembly, the driving assembly is used to drive two Z-shaped stirring knives rotate around its axis; The rotation shaft of two Z-shaped stirring knives two ends is detachably connected with multiple mounting plates, the distance between two Z-shaped stirring knives close to the small end of conical lining and the side wall of pot and the number of mounting plates on the rotation shaft of two Z-shaped stirring knives close to the small end of conical lining are positively correlated.

2. The apparatus for automatic numerical control machining of graphite crucibles according to claim 1, characterized in that, Z-shaped stirring knife includes connecting rod and screw rod, the both ends of connecting rod are connected with screw rod, and connecting rod is perpendicular to two screw rods, the pitch of one of two screw rods close to the big end of conical lining is greater than the pitch of the other close to the small end of conical lining.

3. The apparatus according to claim 1, wherein The air pressure in the pot inside is alternately switched from negative pressure to normal pressure, the pot inside is negative pressure when wet material enters the pot.

4. The apparatus according to claim 3, characterized in that, Vacuum pump is arranged outside the pot, the air exhaust pipe of vacuum pump is communicated with the pot inside.

5. The apparatus according to claim 4, characterized in that, The upper end of sealing cover is provided with arc plate, the arc plate and the sealing cover form sealed cavity, the exhaust pipe of vacuum pump is communicated with the sealed cavity, the sealed cavity is communicated with the pot inside, the communication position between the sealed cavity and the pot is provided with valve, and the valve is used to open or block the communication position between the sealed cavity and the pot.

6. The apparatus according to claim 5, characterized in that, The rotation shaft at the big end of two Z-shaped stirring knives is rotatably connected with hole disc, the surface of hole disc is provided with multiple through holes, the hole disc is fixedly connected with the inner wall of pot and has space between them, the space is communicated with the sealed cavity and pot.

7. The apparatus according to claim 5, wherein Support frame is fixedly arranged on the base, the top of support frame is hingedly connected with connecting rod, one end of connecting rod is hingedly connected with the top end of arc plate, the other end of connecting rod is connected with one end of first telescopic cylinder, the other end of first telescopic cylinder is hingedly connected with the lower part of support frame.

8. The apparatus according to claim 1, wherein The driving assembly includes driving motor and speed reducer, the driving motor and the speed reducer are fixedly arranged on the base, the rotation shaft of driving motor is coaxial with the input shaft of speed reducer and is fixedly connected, the output shaft of speed reducer is coaxial with one of two Z-shaped stirring knife rotation shafts and is fixedly connected, the outer periphery of two Z-shaped stirring knife rotation shafts is coaxial and fixedly provided with transmission gear, and two transmission gears are engaged with each other.

9. The apparatus according to claim 1, wherein The pot body is hingedly arranged on the base, and the base is provided with a second telescopic cylinder, one end of the second telescopic cylinder is hingedly arranged on the outer side wall of the pot body, and the other end of the second telescopic cylinder is hingedly arranged on the base.

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