CN116511451B - A die casting system - Google Patents

Abstract

The invention relates to the field of die casting, and discloses a device for preparing semi-solid aluminum material by a pulping device and a liquid forging machine.

Description

A die casting system

Technical Field

The invention relates to the field of die casting, and in particular to a die casting system.

Background technique

Semi-solid die casting refers to a casting process in which the dendrites formed during the solidification of liquid metal in the pulping container in the pulping machine are changed into non-dendritic structures by stirring with a stirring rod, thereby forming a semi-solid slurry (hereinafter referred to as aluminum material) mixed with liquid and solid. The aluminum material is clamped into a die forging machine by a clamping mechanism for die casting to obtain a high-density alloy. The viscosity of semi-solid metal is higher than that of liquid metal, and it is easy to control the molding; the flow stress of semi-solid metal is lower than that of solid metal, and parts can be formed at a higher speed, and complex parts can also be formed, with a short processing cycle, no waste and high material utilization.

However, in order to maintain the semi-solid state of aluminum, the temperature needs to be strictly controlled. The semi-solid state cannot be maintained if the temperature is too high or too low. In the prior art, from the production of semi-solid aluminum to the die-casting of aluminum, the product quality is often easily affected by poor temperature control. Temperature has become a key control factor for the molding quality of semi-solid aluminum.

Summary of the invention

The present invention aims to provide a die-casting system to improve the molding quality of semi-solid aluminum material.

To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a die-casting system, including a slurry making device and a liquid die forging machine, the slurry making device can make aluminum liquid into semi-solid aluminum material, and the liquid die forging machine can shape the aluminum material, the slurry making device includes a first receiving cup and a first ejection mechanism at the bottom of the first receiving cup, a spiral channel is provided in the side wall of the first receiving cup, there is insulation oil in the spiral channel, and a cooling part is provided at the bottom of the first receiving cup.

In order to improve the molding quality of semi-solid aluminum material, the inventors need to make improvements from the perspective of temperature control. First, the heat dissipation process of the aluminum material must be analyzed.

In the process of making aluminum material, the aluminum liquid needs to be cooled and stirred continuously. In this process, the temperature changes fastest and is the most difficult to control. The inventors found that under continuous stirring: the upper end of the first containing cup is open, and the upper part of the aluminum liquid cools down quickly; after the aluminum liquid is made into aluminum material, in order to facilitate the aluminum liquid to be ejected upward, a first ejection mechanism is provided at the bottom of the aluminum liquid. In addition, the bottom of the first containing cup is closed, which makes it inconvenient for the bottom of the first containing cup to dissipate heat, so the heat dissipation of the lower part of the aluminum liquid is slow.

In order to facilitate temperature control, it is necessary to control the temperature dissipation rate to a similar degree. The inventors set a spiral channel and a cooling element, which has the following beneficial effects:

1. Utilize the good thermal insulation effect of the thermal insulation oil to improve the thermal insulation performance of the side wall of the first holding cup, thereby slowing down the cooling speed of the upper part of the aluminum liquid.

2. The bottom of the first holding cup is cooled by a cooling member to ensure that after the aluminum liquid is made into aluminum material, the temperatures of the upper and lower parts of the aluminum material are similar, so as to facilitate temperature control and maintain the aluminum material in a semi-solid state.

Preferably, as an improvement, the first containing cup is cylindrical with upper and lower openings, the first ejection mechanism includes a first ejection rod, a connecting piece and a punch are provided on the top of the first ejection rod, the top of the punch and the side wall of the first containing cup form a first material trough, the punch is a hollow structure, the punch can close the lower opening of the first containing cup and slide with the inner wall of the first containing cup, and the top of the punch is perpendicular to the side wall of the first containing cup.

The temperature of aluminum liquid is above 900°, and the first ejection mechanism of this scheme is arranged below the slurry making part. At the same time, in order to prevent the first ejection mechanism from failing under continuous high temperature, a heat dissipation mechanism is also arranged, which has the following beneficial effects:

1. The first shot rod drives the punch to move upward, inserts into and closes the lower opening of the first receiving cup. The top of the punch and the side wall of the first receiving cup form a first material trough. The aluminum liquid is introduced into the first material trough and stirred with a stirring rod for dozens of seconds to form a semi-solid aluminum material; the first shot rod continues to drive the punch to move upward, and pushes the aluminum material in the first receiving cup upward so that the clamping mechanism can clamp the aluminum material away; after taking away the aluminum material, the first shot rod drives the punch to move downward out of the vertical channel for cooling, thereby realizing the three-in-one functions of pulping, ejection and heat dissipation.

2. Before pulping begins, in order to facilitate the punch to be inserted again and close the lower opening of the first containing cup, the punch is matched with the gap between the punch and the lower opening of the first containing cup, and the aluminum liquid will not flow out from the gap between the punch and the side wall of the first containing cup in a short time; and during pulping, in order to prevent the aluminum liquid from slowly seeping out from the gap between the punch and the side wall of the first containing cup, the punch is set to a hollow structure, which has a more obvious thermal expansion effect than a solid structure. After the high-temperature aluminum liquid contacts the punch, the punch contacts the side wall of the first containing cup more closely under the action of thermal expansion, thereby preventing the aluminum liquid from seeping out from the gap between the punch and the side wall of the first containing cup.

3. When ejecting the aluminum material, the bottom of the first material trough is completely formed by the punch, which maximizes the contact area between the punch and the aluminum material, thereby reducing the pressure of the punch on the aluminum material; since the top of the punch is perpendicular to the side wall of the vertical channel, no eccentric force is generated, and the thrust generated by the punch at the bottom of the first material trough on the aluminum material is uniform and stable, and after the punch expands, it is pressed against the side wall of the pulping part, thereby avoiding the situation where the material hangs on the side wall of the pulping part.

4. After the aluminum material is ejected, the punch moves downward out of the first receiving cup, and the upper and lower ends of the first receiving cup form a ventilated state. Wind is generated due to the temperature difference between the inside and the outside of the first receiving cup. The wind takes away the heat in the vertical channel and passes through the punch, and also takes away the heat of the punch. The punch cools down and shrinks, and the volume of the punch becomes smaller, so that it is easier to insert into the lower end of the vertical channel next time.

Preferably, as an improvement, the connecting member and the first injection rod are both hollow structures, an external liquid inlet and an external liquid outlet are provided on the side wall of the injection tube, the cooling member is vertically arranged in the injection tube, and the cooling member includes a fixed part, a liquid inlet and a liquid outlet from bottom to top, the fixed part is connected to the injection tube, an internal liquid inlet is provided on the side of the liquid inlet, an internal liquid outlet is provided on the top of the liquid outlet, and the external liquid inlet, the internal liquid inlet, the liquid inlet, the liquid outlet, the internal liquid outlet and the external liquid outlet are connected in sequence. In this way,

1. Both the external liquid inlet and the external liquid outlet can be set far away from the punch to prevent the coolant infusion pipe from being affected by high temperature, thereby improving durability.

2. The cooling element is completely wrapped in the coolant to avoid direct contact between the cooling element and the connecting element, the connecting element and the first injection rod, thereby improving the durability of the cooling element.

3. First, the coolant is transported to the top of the liquid outlet through the cooling part, and directly contacts with the punch with the highest temperature. At this time, the coolant temperature is the lowest and the cooling effect is the best; then it flows back from the outside of the cooling part, cooling the connecting part and the first injection rod in turn.

Preferably, as an improvement, the liquid die forging machine includes a forming device and a pressurizing device, the forming device includes a lower die mechanism and an upper die mechanism, the lower die mechanism includes a lower die, a first ejection hole is opened in the middle of the lower die, the upper die mechanism includes an upper die and an ejection unit, the lower surface of the upper die and the upper surface of the lower die are combined to form a die cavity, the pressurizing device includes a second ejection mechanism, the second ejection mechanism ejects the aluminum material into the die cavity from the first ejection hole and applies pressure to the aluminum material, the ejection unit includes a plurality of tie rods, the plurality of tie rods pass through the upper die and contact with the lower surface of the upper die, and the plurality of tie rods can eject the peripheral position of the product in the upper die.

For thinner products, when the mold is just opened, the product fits on the upper surface of the lower mold. When the product is ejected, it will deform due to its thin thickness. Although this deformation is small, it will still affect the product quality for high-end products with high performance requirements. In order to improve product quality, the inventors have looked for the reasons for product deformation from many aspects in order to find a solution.

Initially, the inventors increased the contact area between the second ejector mechanism and the product to reduce the pressure and thus avoid product deformation. However, this not only increased the volume and cost of the second ejector mechanism, but also led to a decrease in molding quality. Specifically, since the second ejector mechanism is movable and its position is not fixed, the molding quality of the part of the product that contacts the second ejector mechanism is far worse than the molding quality of the part that contacts the lower mold cavity. Therefore, the smaller the area in contact with the second ejector mechanism, the better the molding quality.

Later, the inventor discovered that the second ejector usually ejects from the middle of the product in the lower mold, while the edge of the product is still attached to the lower mold. The middle of the product has been ejected by the ejector for a distance, but the edge of the product is still attached to the lower mold, which causes the product to deform. The greater the displacement difference between the middle and the edge of the product, the greater the product deformation. Therefore, the inventor solved this problem from two aspects:

First, the inventors set up an ejection unit. After the mold is closed, the second ejection device can push the aluminum material into the mold cavity. The ejection unit is set on the upper mold. When the mold is opened, the second ejection device pushes the product upward, and the product moves upward with the upper mold. Since the upper side of the product is close to the upper mold, the product is not easy to deform, and the product moves upward with the upper mold.

In the prior art, the product tends to approach the lower mold under the action of gravity. However, after the mold is opened in this solution, the product moves upward with the upper mold, and the product tends to move away from the upper mold under the action of gravity. The ejection unit only needs a small thrust to demold the product.

Second, since the second ejection mechanism is used to push the aluminum material into the mold cavity and exert pressure on the aluminum material in the mold cavity, after the product is formed, the middle part of the product fits most closely with the upper mold. If the product is ejected directly from the middle part of the product, a large thrust is required to eject the product. The inventor disperses the positions where the ejection unit contacts the product around the product. The ejection unit first pushes open the edge of the product, which not only reduces the displacement difference of each position when the product is ejected, thereby reducing product deformation, but also allows the surrounding air to enter from the edge of the product and gradually fill in between the upper mold and the product, reducing the air pressure difference between the upper and lower sides of the product, and then drives the middle part of the product to leave the upper mold through the edge of the product, so as to achieve the purpose of reducing deformation.

The beneficial effects of this program are:

1. The product is ejected from the upper mold through multiple tie rods. The contact surfaces between the tie rods and the product are dispersed, and the displacement difference generated on each contact surface is small on average. The displacement difference is controlled within the elastic range of the product, thereby avoiding product deformation and improving product quality.

2. The ejection unit first pushes open the edge of the product, allowing the surrounding air to gradually fill in between the upper mold and the product, reducing the pressure difference between the upper and lower sides of the product, and then drives the middle of the product to leave the upper mold through the edge of the product to achieve the purpose of reducing deformation.

Preferably, as an improvement, the upper mold mechanism further includes a middle beam plate and an upper mold driver, the lower end of the output shaft of the upper mold driver is connected to the middle beam plate, and the lower side of the middle beam plate is connected to the upper mold, and the ejection unit further includes an ejection driver and a connecting plate, the ejection driver is arranged in the middle beam plate, the upper end of the output shaft of the ejection driver passes through the middle beam plate and is connected to the connecting plate, the upper ends of the pull rods are connected to the lower side of the connecting plate, and the lower ends of the pull rods pass through the middle beam plate and the upper mold in sequence. Such an arrangement can produce the following effects:

1. The upper mold driving component drives the middle beam plate to move downward, thereby driving the upper mold to move downward and providing support for the upper mold when the aluminum material is formed; after the aluminum material is formed, the upper mold driving component drives the middle beam plate and the upper mold to move upward, and the ejection driving component drives the connecting plate to move downward, thereby driving the pull rod to move downward, and then ejecting the product downward.

2. If the output shaft of the ejector drive is directly set downward, the ejector drive may not have enough stroke to drive the pull rod to eject the product due to the thickness of the center beam plate. Therefore, this solution sets the ejector drive in reverse, sets the output shaft of the ejector drive upward, and connects the pull rod through a connecting plate to meet the stroke requirements for ejecting the product.

3. If the tie rod only passes through the upper mold, it is not easy to find out even if the upper mold is skewed relative to the middle beam plate, which will cause the upper mold to shift when the lower mold is closed, thereby reducing the molding quality of the product; in this solution, the tie rod passes through the middle beam plate and the upper mold successively, and plays a positioning role for the middle beam plate and the upper mold, thereby avoiding the upper mold from being skewed relative to the middle beam plate, thereby ensuring the molding quality of the product.

Preferably, as an improvement, the pressure device has the same structure as the pulping device. In this way, before the aluminum material is pushed into the mold cavity, the temperature of the aluminum material is maintained to ensure that the aluminum material is always maintained in a semi-solid state before being formed.

Preferably, as an improvement, it further comprises a scraping device, the scraping device comprises a crucible and a scraping mechanism next to the crucible, the scraping mechanism comprises a frame, a horizontal moving unit is arranged on the frame, a vertical moving unit is arranged on the horizontal moving unit, a cantilever is arranged horizontally on the vertical moving unit, a scraping rod is arranged vertically at one end of the cantilever away from the vertical moving unit, and a scraping plate is arranged at the lower end of the scraping rod. Such an arrangement can produce the following beneficial effects:

1. After the raw materials in the crucible are melted into aluminum liquid, the horizontal moving unit drives the vertical moving unit to approach the crucible horizontally, so that the scraper plate is as close to the side wall of the crucible away from the frame as possible, and the cantilever is driven downward by the vertical moving unit, thereby driving the scraper rod to approach the aluminum liquid surface, inserting part of the scraper plate into the aluminum liquid, driving the scraper plate to move to the side close to the frame, and then pushing the aluminum slag to the side wall of the crucible close to the frame. At this time, the aluminum liquid is scooped up with a spoon to minimize the aluminum slag scooped up by the spoon, thereby improving the molding quality of aluminum products.

2. Although the frame is set on the side of the crucible, the scraper rod is lifted by the cantilever part, and then the scraper plate is lifted. When scraping is needed, the scraper plate is sent into the crucible, and when scraping is not needed, the scraper plate is retracted, thereby avoiding compressing the operating space of other processes and reducing the interference of the scraper equipment with other equipment.

3. Since the scraper plate needs to overcome the resistance of the aluminum liquid and move horizontally when scraping the slag in the crucible, the horizontal movement of the scraper plate requires more power than the vertical movement. Therefore, the horizontal moving unit is directly fixed to the frame instead of the vertical moving unit, so as to provide more direct power for the horizontal movement.

4. Compared with rotational motion, the horizontal moving unit and the vertical moving unit in this solution are both linear motion, with simple structure, low cost, simple trajectory, and not easy to interfere with other equipment.

Preferably, as an improvement, the inner wall of the crucible has a circular cross-section, a rotating motor is provided on the cantilever portion, the output shaft of the rotating motor is fixedly connected to the scraper rod, the scraper rod is rotatably connected to the cantilever portion, the scraper plate includes a rotating plate and a fixed plate, the fixed plate can cover the rotating plate, a limiting groove is provided on the fixed plate, the limiting groove matches the shape of the upper edge of the crucible, the fixed plate is rotatably connected to the scraper rod, and the rotating plate is fixedly connected to the scraper rod.

With this arrangement, the round crucible has uniform thickness and uniform heat transfer, and does not have the corners of the rectangular crucible. It is more common in the market, and when updating the scraping equipment, continuing to use the crucible used in the original process will undoubtedly save costs and procurement time. Therefore, the round crucible is continued to be used in this solution. However, if only a scraping plate is used to scrape the slag, the movement trajectory of the scraping plate is a straight line, and the aluminum slag at both ends of the scraping plate cannot be scraped away. In order to adapt to the shape of the crucible, the inventor tried a variety of methods:

First, an elastic member is arranged in the scraper plate so that the length of the scraper plate can be changed according to the shape of the crucible and both ends of the scraper plate are pressed against the side wall of the crucible. However, the elastic member usually cannot withstand high temperature and is easily ineffective in molten aluminum.

Then, with the scraper rod as the axis, the scraper plate is rotated around the scraper rod. Since the radius of the crucible is constant, the length of the scraper plate does not need to be changed to scrape away all the aluminum slag. However, the scraper plate drives the aluminum liquid to rotate. Even if the scraper plate scrapes the aluminum liquid to the side away from the spoon, the aluminum liquid continues to drive the aluminum slag to rotate due to inertia and returns to the side close to the spoon. Some of the aluminum slag will still be scooped away by the spoon, thereby reducing the molding quality of the aluminum product.

Next, the inventor set a fixed plate to prevent the aluminum liquid from driving the aluminum slag to rotate back to the side close to the soup spoon. However, in order to achieve the purpose of blocking, the fixed plate needs to be connected to at least one of the scraping rod and the side wall of the crucible. But to facilitate the movement of the scraping rod after the scraping is completed, the inventor fixed the fixed plate to the side wall of the crucible. After the rotating plate rotates one circle, the aluminum slag sticks to the fixed plate. In order to facilitate the cleaning of the aluminum slag on the fixed plate, the fixed plate and the crucible are set to be detachably connected.

Then, the inventor found that due to the problem of precision, it is impossible to ensure that the scraper rod is in the same position every time it scrapes the slag, which sometimes causes the gap between the rotating plate and the fixed plate to be very large, and the aluminum slag leaks through the gap, thereby reducing the molding quality of the aluminum product. Therefore, the inventor connected one end of the fixed plate to the scraper rod for rotation, and set a limit groove on the other end. On the one hand, during the downward movement of the vertical moving unit, the side wall of the limit groove is driven to apply downward pressure to the upper edge of the crucible, thereby fixing the other end of the fixed plate to the crucible; on the other hand, when the vertical moving unit drives the scraper rod to move upward, the aluminum slag attached to the fixed plate falls back into the crucible due to its own gravity and the tension of the aluminum liquid surface, reducing the efficiency of cleaning the aluminum slag. Compared with the use of other clamps, since the fixed plate is fixed to the crucible through the limit groove, there is no clamp obstruction on the side of the fixed plate, and it can be tightly attached to the rotating plate, so that the aluminum slag is sandwiched between the rotating plate and the fixed plate, so that when the scraper rod moves upward, the aluminum slag will not fall. After the scraper rod brings the aluminum slag to the position for processing the aluminum slag, the scraper rod drives the rotating plate to rotate, and the rotating plate pushes the fixed plate to rotate together, and then the speed of the scraper rod drops rapidly, and the fixed plate separates from the rotating plate under the action of inertia, and the aluminum slag originally clamped between the two falls off; after the two are separated, the rotating plate rotates in the opposite direction, and the fixed plate collides with the rotating plate again, and the residual aluminum slag attached to the fixed plate and the rotating plate falls off due to the collision between the two, thereby automatically cleaning the aluminum slag on the fixed plate and the rotating plate to prepare for the next scraping.

Therefore, this setting has the following effects:

1. Under the premise of the same capacity, the round crucible is larger than the rectangular crucible and has a higher efficiency in melting raw materials.

2. The scraper rod is moved to the center of the crucible through the horizontal moving unit and the vertical moving unit. The limit groove is aligned with the upper edge of the crucible and a downward pressure is applied. The scraper rod drives the rotating plate to rotate under the drive of the rotating motor, thereby scraping off the slag on the surface of the aluminum liquid.

Preferably, as an improvement, a slag groove is provided on the side wall of the crucible. In this way, if there is no slag groove, after the scraper scrapes away more aluminum slag, part of the aluminum slag cannot stick to the side wall of the crucible, and part of the aluminum slag rebounds back to the side close to the soup spoon, thereby reducing the molding quality of the aluminum product; while the scraper scrapes the aluminum slag into the slag groove, the aluminum slag will no longer rebound back to the side close to the soup spoon.

Preferably, as an improvement, the slag trough includes a disassembly part, which can accommodate aluminum slag, a filter hole is provided at the bottom of the disassembly part, a sealing plate is horizontally provided on the side wall of the crucible, a plurality of sealing protrusions are provided on the sealing plate, the sealing protrusions are hemispherical, and the filter hole and the sealing protrusion cooperate with each other. In this way, before the aluminum liquid melts, the disassembly part is placed on the sealing plate, and the weight and density of the disassembly part ensure that the sealing protrusions and the filter hole are tightly combined under the action of gravity, so that the aluminum liquid will not enter the disassembly part after melting, thereby preventing the aluminum slag from floating up after entering the disassembly part. If the height after floating up is close to the height of the aluminum liquid, the aluminum slag in the disassembly part will prevent the aluminum slag outside the disassembly part from entering, thereby causing the aluminum slag to rebound back to the side close to the soup spoon, thereby reducing the molding quality of the aluminum product; when the aluminum slag in the disassembly part accumulates to a certain extent, the disassembly part is removed, and the aluminum liquid that enters the disassembly part together with the aluminum slag flows back to the crucible from the filter hole to avoid wasting the aluminum liquid.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a plan view of the layout of embodiment 1;

FIG2 is a top view of the scraping device of Example 1;

FIG3 is a three-dimensional axonometric view of the scraping mechanism of the scraping device of Example 1;

FIG4 is a cross-sectional view of the pulping device of Example 1;

FIG5 is a cross-sectional structural exploded view of the first ejection mechanism of the pulping device of Example 1; (the oil cylinder is omitted)

FIG6 is a cross-sectional view of a cooling member of the pulping device of Example 1;

FIG7 is a front view of the liquid die forging machine of Example 1;

FIG8 is a side view of the liquid die forging machine of Example 1;

FIG9 is a bottom view of the middle beam plate of the liquid die forging machine of Example 1;

FIG10 is a top view of the crucible of the scraping device of Example 2;

Fig. 11 is a cross-sectional view along the line A-A in Fig. 10;

FIG12 is a top view of the crucible of the scraping device of Example 3;

Figure 13 is a cross-sectional view taken along the line B-B in Figure 12.

Detailed ways

The following is further described in detail through specific implementation methods:

The reference numerals in the drawings of the specification include:

Slag scraping device a0, operating table a1, turntable a2, crucible a3, slag trough a300, disassembly part a310, lifting rod a311, filtering hole a312, sealing plate a320, sealing protrusion a321, slag scraping mechanism a4, frame a410, supporting frame a411, cantilever part a420, scraping rod a430, scraping plate a440, rotating plate a441, fixing plate a442, limiting groove a443, circular ring a444, horizontal threaded rod a451, horizontal sliding rod a452, horizontal driving member a453, sliding plate a461, sliding block a462, convex strip a463, upper horizontal plate a464, lower horizontal plate a465, vertical threaded rod a466, vertical driving member a467;

Pulping device b0, upper connecting plate b101, lower connecting plate b102, positioning screw rod b103, first containing cup b2, upper heat-insulating part b210, spiral channel b211, lower positioning part b220, vertical channel b230, oil cylinder b3, first injection rod b4, external liquid port b401, external liquid inlet b402, connecting member b5, external thread b501, bearing part b502, internal thread b503, punch b6, inner convex part b601, sealing ring b7, cooling member b8, fixing part b810, liquid inlet part b820, internal liquid inlet b821, liquid outlet part b830, internal liquid outlet b831;

Liquid die forging machine c0, base c110, support legs c111, bottom plate c112, drive box c120, guide column c130, second containing cup c2, ejection drive member c3, second injection rod c4, upper die drive member c510, upper die drive member output shaft c511, center beam plate c520, guide hole c521, bolt groove c522, ejection hole c523, ejection drive member c531, connecting plate c532, pull rod c533, baffle c610, frame c611, cardboard c612, guide ring c613, fixing bar c614, enclosure drive member c620, guide rod c630, electrical box c7.

Example 1

Embodiment 1 is basically as shown in FIG1 : a die-casting system, including a scraping device a0, a slurrying device b0 and a liquid die forging machine c0. The scraping device a0 heats the raw material to melt it into molten aluminum and scrapes away the aluminum slag (aluminum liquid oxide) on the surface of the molten aluminum. The slurrying device b0 can make the molten aluminum into a semi-solid aluminum material. The liquid die forging machine c0 can shape the aluminum material. The planar layout of the scraping device a0, the slurrying device b0 and the liquid die forging machine c0 is shown in FIG1 , and FIGS. 2-13 only show the core components at the corresponding positions.

As shown in FIG2 , the scraping device a0 includes an operating table a1, on which a turntable a2 and a scraping mechanism a4 next to the turntable a2 are provided, on which two crucibles a3 are placed, and the scraping mechanism a4 includes a frame a410. As shown in FIG3 , the frame a410 includes a rectangular support frame a411, on which a horizontal moving unit is provided, on which a vertical moving unit is provided, and on which a cantilever a420 is horizontally provided. A scraping rod a430 is vertically welded at one end of the cantilever a420 away from the vertical moving unit, and a scraping plate a440 is integrally formed at the lower end of the scraping rod a430, and the scraping plate a440 is a rectangular plate.

The horizontal unit includes a horizontal threaded rod a451, a horizontal sliding rod a452 and a horizontal driving member a453. The horizontal driving member a453 is arranged on the side of the supporting frame a411. The horizontal threaded rod a451 and the horizontal sliding rod a452 are arranged in parallel. One end of the horizontal threaded rod a451 is connected to the output shaft of the horizontal driving member a453, and the other end is rotatably connected to the frame a410. Both ends of the horizontal sliding rod a452 are welded to the supporting frame a411.

The vertical moving unit includes a skateboard a461, a slider a462 is integrally formed on the rear side of the skateboard a461, the slider a462 is threadedly connected to the horizontal threaded rod a451, the slider a462 is slidably connected to the horizontal slide rod a452, a rectangular convex strip a463 is vertically integrally formed on the left and right sides of the front side of the skateboard a461, an upper horizontal plate a464 and a lower horizontal plate a465 are respectively provided at the upper and lower ends of the front side of the skateboard a461, a vertical driving member a;467 is provided on the upper horizontal plate a464, a vertical threaded rod a466 parallel to the two convex strips a463 is rotatably connected to the lower horizontal plate a465, and the lower end of the output shaft of the vertical driving member a;467 passes through the upper horizontal plate a464 and is welded to the upper end of the vertical threaded rod a466, the right end of the cantilever part a420 is threadedly connected to the vertical threaded rod a466, and is slidably connected to the vertical convex strip a463.

The horizontal driving component a453 and the vertical driving component a467 are both motors. In this embodiment, the motors are fixed by bolt connection and are both servo motors of model MR-J2S-100A.

As shown in Figure 4, the semi-solid pulping machine includes a frame, which includes an upper connecting plate b101 and a lower connecting plate b102, and four vertical positioning screws b103 are bolted between the upper connecting plate b101 and the lower connecting plate b102 (for ease of display, the positioning screws b103 are indicated by bold straight lines, and only two of them are indicated in the figure; the section lines of the upper connecting plate b101 and the lower connecting plate b102 are omitted), and a positioning hole is opened on the upper connecting plate b101.

A first containing cup b2 is provided on the upper connecting plate b101. The first containing cup b2 is a cylinder with upper and lower openings. The upper part of the first containing cup b2 is an upper insulation part b210, and the lower part is a lower positioning part b220. An insulation unit is provided in the side wall of the upper insulation part b210. The insulation unit includes an oil inlet, a spiral channel b211 and an oil outlet which are connected in sequence. There is insulation oil in the spiral channel b211. The inner diameter of the lower positioning part b220 is equal to that of the upper insulation part b210, and the outer diameter is smaller than that of the upper insulation part b210. The bottom of the upper insulation part b210 is bolted to the upper connecting plate b101, and the lower positioning part b220 is gap-matched with the positioning hole of the upper connecting plate b101 and passes through the positioning hole.

The lower connecting plate b102 is provided with a first ejection mechanism, which includes, from bottom to top, an oil cylinder b3, a first pressure-shooting rod b4, a connecting piece b5 and a punch b6. The lower connecting plate b102 is bolted to the oil cylinder b3, and the upper end of the output shaft of the oil cylinder b3 is threadedly connected to the bottom of the first pressure-shooting rod b4. As shown in FIG5 , the first pressure-shooting rod b4, the connecting piece b5 and the punch b6 are all hollow structures with circular cross-sections and are internally connected. The hollow section in the connecting piece b5 is smaller than the hollow section in the first pressure-shooting rod b4 and the punch b6. The upper and lower ends of the connecting piece b5 are provided with external threads b501. The middle part of the connecting piece b5 protrudes circumferentially to form a bearing portion b502, which bears Part b502 can transfer the impact force of the first injection rod b4 to the punch b6. The lower end of the punch b6 and the upper end of the first injection rod b4 are both provided with internal threads b503, and are respectively threadedly connected to the upper and lower ends of the connecting piece b5. A sealing ring b7 is provided between the connecting piece b5, the punch b6 and the first injection rod b4. The punch b6 is clearance-matched with the vertical channel b230. The punch b6 and the vertical channel b230 are slidingly connected and can close the lower end of the vertical channel b230. The top of the punch b6 is perpendicular to the side wall of the vertical channel b230. The punch b6 is in an inverted "U" shape. The hollow structure of the punch b6 forms a top inner cavity, and the middle part of the top inner cavity bulges inward to form an inner convex portion b601.

An external liquid inlet b402 and an external liquid outlet b401 are provided on the side wall of the first injection rod b4. As shown in FIG6 , a vertical cooling member b8 is also provided inside the first injection rod b4 (for ease of display, the cooling member b8 is omitted in FIG4 and FIG5 ). The cooling member b8 includes a fixed portion b810, a liquid inlet portion b820 and a liquid outlet portion b830 from bottom to top. The fixed portion b810 and the liquid inlet portion b820 are integrally formed. The liquid inlet portion b820 and the liquid outlet portion b830 are welded. The bottom of the fixed portion b810 is bolted to the first injection rod b4. Two sealing rings b7 are also provided between the fixed portion b810 and the side wall of the first injection rod b4. The two sealing rings b 7 are all arranged below the external liquid port b401, the side of the liquid inlet b820 is provided with an internal liquid inlet b821, the liquid outlet b830 is a copper tube, the liquid outlet b830 passes through the connecting piece b5 and is inserted into the punch b6, the top of the liquid outlet b830 is the internal liquid outlet b831, the space between the cooling element b8 and the punch b6, the connecting piece b5 and the first injection rod b4 forms a reflux channel, the reflux channel connects the internal liquid outlet b831 and the external liquid port b401, the external liquid inlet b402, the internal liquid inlet b821, the liquid inlet b820, the liquid outlet b830, the internal liquid outlet b831, the reflux channel and the external liquid port b401 are connected in sequence. An annular cutout is provided on the liquid inlet b820, the annular cutout is located below the internal liquid inlet b821 and above the two sealing rings b7, and part of the cooling liquid is contained between the annular cutout and the inner wall of the first injection rod b4.

As shown in Figure 7, the liquid forging machine c0 includes a frame a, a forming device, a pressurizing device and an electrical box c7. The bracket includes a rectangular base c110 and a drive box c120. The base c110 is provided with a second entry hole. Four legs c111 are integrally formed at the bottom of the base c110. A bottom plate c112 is integrally formed at the lower ends of the four legs c111. A guide column c130 is interference fit at each of the four corners on the upper side of the base c110. The upper ends of the four guide columns c130 are interference fit with the lower side of the drive box c120.

The forming device is arranged on the frame a, and the forming device includes an upper mold mechanism, a lower mold mechanism and a surrounding mechanism. The upper mold mechanism includes an upper mold driving component c510, a middle beam plate c520, an upper mold (not shown in the figure) and an ejection unit. The oil tank of the upper mold driving component c510 is bolted to the side of the driving box c120. The upper mold driving component c510 is bolted in the driving box c120. In this embodiment, there are two upper mold driving components c510.

The lower ends of the output shafts of the two upper mold driving members c510 are bolted to the upper side of the middle beam c520. As shown in Figure 9, the middle beam c520 is rectangular, and a guide hole c521 is respectively opened at the four corners of the middle beam c520. The guide column c130 passes through the guide hole c521 and is slidably connected with the guide hole c521. The position between the upper mold driving member output shafts c511 of the two upper mold driving members c510, the middle beam c520 is provided with a plurality of vertical ejection holes c523, and the lower side of the middle beam c520 is provided with a plurality of bolt grooves c522.

According to the type of upper mold, the upper mold can be directly connected to the bolt groove c522, or the clamp can be first connected to the bolt groove c522 and then the upper mold can be fixed with the clamp.

The ejection unit includes an ejection drive member c531, a connecting plate c532 and a plurality of tie rods c533, as shown in FIG8. For ease of display, the figure only shows a cross-sectional view of the output shaft portion of the ejection drive member c531. The upper end of the output shaft of the ejection drive member c531 passes through the middle beam plate c520 and is threadedly connected to the left end of the connecting plate c532. A plurality of tie rods c533 are welded to the lower right end of the connecting plate c532. The plurality of tie rods c533 sequentially pass through the ejection hole c523 of the middle beam plate c520 and the upper mold (not shown in the figure) as shown in FIG9, and then contact the lower surface of the mold cavity of the upper mold. The plurality of tie rods c533 can eject the peripheral position of the product in the upper mold downward.

As shown in FIG7 , the lower mold mechanism includes a lower mold (not shown), the lower surface of the upper mold and the upper surface of the lower mold enclose a closed mold cavity, the lower mold is bolted to the base c110, and an entry hole is opened in the middle of the lower mold.

The pressurizing device includes a second containing cup c2 and a second ejection mechanism, the second ejection mechanism includes a second pressing rod c4 and an ejection drive member c, the ejection drive member c is bolted on the bottom plate c112, the upper end of the output shaft of the ejection drive member c is welded to the lower end of the second pressing rod c4, the top of the second pressing rod c4 is slidably connected to the second containing cup c2, the second containing cup c2 is bolted to the second ejection hole of the base c110, the top of the second pressing rod c4 and the side wall of the second containing cup c2 form a second material trough that can contain aluminum material, the second material trough is aligned with the first ejection hole, and the second ejection mechanism structure ejects the aluminum material into the mold cavity from the first ejection hole and applies pressure to the aluminum material.

As shown in Figures 7 and 8, the enclosure mechanism includes four enclosure units, which are respectively arranged in four directions of the frame a, and can prevent the aluminum material from splashing out and injuring people under the action of pressure when the second injection rod c4 presses the aluminum material into the mold cavity, thereby improving safety. The four enclosure units all include a baffle c610, an enclosure drive c620 and two vertically arranged guide rods c630. The upper ends of the two guide rods c630 are welded to the bottom side of the drive box c120, and the lower ends are welded to the upper side of the base c110. The baffle c610 includes a frame c611 and a cardboard c612. The cardboard c612 is glued to the frame c611 for easy replacement. Three guide rings c613 are welded on both sides of the frame c611. A guide rod c630 passes through the three guide rings c613 and is slidably connected to the three guide rings c613. An L-shaped fixing strip c614 is provided above the cardboard c612. One side of the fixing strip c614 is welded to the frame c611, and the other side of the fixing strip c614 is bolted to the upper end of the output shaft of the enclosure drive c620. The lower end of the enclosure drive c620 is bolted to the bottom plate c112.

The upper mold driving component c510, the ejection driving component c531, the ejection driving component c and the enclosure driving component c620 are all hydraulic cylinders and are powered by the electric box c7.

The specific implementation steps are as follows:

1. After the raw materials in the crucible a3 are melted into aluminum liquid, the crucible a3 is rotated to the side close to the scraping mechanism a by the turntable a2, and the vertical moving unit is driven by the horizontal moving unit to horizontally approach the crucible a3, so that the scraping plate a440 is as close as possible to the side wall of the crucible a3 away from the frame a410, and the cantilever part a420 is driven downward by the vertical moving unit, thereby driving the scraping rod a430 to approach the aluminum liquid surface, and partially inserting the scraping plate a440 into the aluminum liquid.

2. Drive the scraper plate a440 to move to the side close to the frame a410, and then push the aluminum slag to the side wall of the crucible a3 close to the frame a410; rotate the turntable a2, rotate the crucible a3 to the side close to the spoon, use the spoon to scoop the aluminum liquid out of the crucible a3, and rotate the other crucible a3 with molten aluminum liquid to the side close to the scraper mechanism a; at the same time, drive the oil cylinder b3 of the pulping device b0 to move the first injection rod b4 upward, and then drive the punch b6 to move upward to block the lower end of the first receiving cup b2. The top of the punch b6 and the side wall of the first receiving cup b2 form a first material trough, and the scooped aluminum liquid is placed in the first material trough.

3. After the high-temperature aluminum liquid contacts the punch b6, the punch b6 is pressed against the side wall of the first containing cup b2 due to thermal expansion, and the aluminum liquid is stirred for tens of seconds using a stirring rod to form a semi-solid aluminum material; at the same time, the insulation oil enters from the oil inlet and flows out from the oil outlet to form a circulation, which forms an insulation effect on the aluminum liquid in the spiral channel b211; the coolant enters from the external liquid inlet b402 of the cooling member b8, first passes upward through the liquid outlet b830 into the punch b6, and cools the punch b6. The inner convex part b601 of the punch b6 blocks the coolant from flowing downward, thereby increasing the time the coolant stays in the punch b to improve the cooling effect, and then the coolant flows out from the outside of the cooling member b8, that is, it flows out from the reflux channel and the external liquid port b401 in turn. When the coolant flow rate is too slow to reduce the temperature to a reasonable range, the coolant contained between the annular cutout and the inner wall of the first injection rod b4 begins to expand due to the high temperature. The coolant generates a reaction force on both sides, thereby enlarging the gap between the fixed part b810 and the inner wall of the first injection rod b4. The fixed part b810 and the inner wall of the first injection rod b4 cannot clamp the sealing ring b7, causing the coolant to overflow from the first injection rod b4. The operator observes the coolant overflow and finds that the cooling effect is insufficient, and then speeds up the flow rate of the coolant to improve the cooling effect.

4. Drive the oil cylinder b3 to drive the first injection rod b4 to continue to move upward, and then drive the punch b6 to move upward, and push the aluminum material in the first receiving cup b2 upward, so that the clamping mechanism can clamp the aluminum material; at the same time, the upper die of the liquid forging machine c0 is bolted to the lower side of the middle beam plate c520, so that the lower end of the tie rod c passes through the upper die and contacts the lower surface of the upper die, and the lower die is bolted to the upper side of the base c110, and the first ejection hole of the lower die is aligned with the second material trough, and the aluminum material clamped by the clamping mechanism is placed in the second material trough.

5. Drive the upper mold driving component c510 to drive the middle beam plate c520 to move downward, thereby driving the upper mold to move downward, and then closing the upper and lower molds; drive the enclosure driving component c620 to drive the baffle c610 to move upward to surround the upper and lower molds; drive the ejection driving component c, and the ejection driving component c drives the second injection rod c4 to move upward, and the second injection rod c4 pushes the aluminum material into the mold cavity. The second injection rod c4 continuously applies pressure to the aluminum material in the mold cavity, thereby forming the aluminum material.

6. Drive the enclosure driving component c620, drive the baffle c610 to move downward, so that the upper and lower molds are exposed, drive the upper mold driving component c510, thereby driving the center beam c520 and the upper mold to move upward. At the same time, the ejection driving component c drives the second injection rod c4 to move upward, and the second injection rod c4 pushes the product upward, so that the product moves upward with the upper mold; the ejection driving component c531 drives the connecting plate c532 to move downward, thereby driving the pull rod c533 to move downward, and then ejecting the product downward, so that the product is separated from the upper mold.

Example 2

The difference between the scraping device a0 in Example 2 and Example 1 is that the inner wall of the crucible a3 is a circular cross-section, a rotating motor is provided on the left end of the cantilever a420, the lower end of the rotating motor output shaft passes through the cantilever a420 and is welded to the upper end of the scraping rod a430, and a horizontally arranged annular groove is opened on the scraping rod a430. As shown in Figure 10, the scraper plate a440 includes a rotating plate a441 and a fixed plate a442. The side of the rotating plate a441 and the fixed plate a442 close to the scraper rod a430 is the inner side. As shown in Figure 11, the fixed plate a442 can cover the rotating plate a441. A limiting groove a443 is opened on the lower side of the fixed plate a442. The limiting groove a443 matches the shape of the upper edge of the crucible a3. The fixed plate a442 is rotatably connected to the scraper rod a430. Specifically, a circular ring a444 is integrally formed at the upper end of the inner side of the fixed plate a442, and the circular ring a444 is rotatably matched with the annular groove on the scraper rod a430; the inner side of the rotating plate a441 is integrally formed with the scraper rod a430.

The specific implementation steps differ from those of Example 1 in that:

In step 1: the scraper rod a430 is moved to the center of the crucible a3 through the horizontal moving unit and the vertical moving unit, the limiting groove a443 is aligned with the upper edge of the crucible a3 and exerts downward pressure, and the fixing plate a442 is clamped on the edge of the crucible a3.

In step 2: the scraper rod a430 drives the rotating plate a441 to rotate under the drive of the rotating motor, thereby scraping off the filtered residue on the surface of the aluminum liquid; the rotating plate a441 and the fixed plate a442 clamp the aluminum slag, and the horizontal moving unit and the vertical moving unit drive the scraper rod a430 to move upward, thereby taking out the aluminum slag.

Example 3

The difference between the scraping device a0 in Example 3 and Example 1 is that, as shown in Figures 12 and 13, a slag groove a300 is integrally formed on the side wall of the crucible a3, and the side of the slag groove a300 away from the side wall of the crucible a3 is flat and has the same width as the scraping plate a440. The slag groove a300 includes a disassembly portion a310 and a sealing plate a320. For ease of display, the section lines of the disassembly portion a310 and the sealing plate a320 are omitted. The disassembly portion a310 is cup-shaped and can accommodate aluminum slag. A lifting rod a311 is provided at the upper end of the disassembly portion a310 to facilitate manual lifting of the disassembly portion a310. The sealing plate a320 is integrally formed on the side wall of the crucible a3, and a plurality of sealing protrusions a321 are integrally formed on the sealing plate a320. The sealing protrusions a321 are hemispherical. A plurality of filter holes a312 are opened at the bottom of the disassembly part a310. The thickness of the bottom of the disassembly part a310 is 3-10 cm, and 5 cm is more suitable in this embodiment. The filter holes a312 and the sealing protrusions a321 cooperate with each other. The sealing performance of the sealing protrusions a321 to the filter holes a312 is sufficient as long as the volume of the aluminum liquid entering the disassembly part a310 is negligible relative to the volume of the aluminum slag. The thickness of the upper end of the side wall of the disassembly part a310 away from the side wall of the crucible a3 gradually decreases from bottom to top.

The specific implementation steps differ from those of Example 3 in that:

In step 1: before the aluminum liquid melts, the disassembly part a310 is placed on the sealing plate a320. Through the weight and density of the disassembly part a310, under the action of gravity, the sealing protrusion a321 and the filter hole a312 are tightly combined, so that the aluminum liquid will not enter the disassembly part a310 after melting.

In step 2: when there is a lot of aluminum slag in the disassembly part a310, lift the lifting rod a311, the filter hole a312 is separated from the sealing protrusion a321, and the aluminum liquid that enters the disassembly part a310 together with the aluminum slag flows back into the crucible a3 from the filter hole a312.

Example 4

Example 4 is based on Example 1: the structures of the pressurizing device and the pulping device b0 are consistent.

The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and/or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims (7)

1. A die casting system, characterized by: the device comprises a pulping device and a liquid die forging machine, wherein the pulping device can prepare aluminum liquid into semi-solid aluminum material, the liquid die forging machine can shape the aluminum material, and the pulping device comprises a first accommodating cup and a first ejection mechanism at the bottom of the first accommodating cup; the liquid die forging machine comprises a forming device and a pressurizing device, the forming device comprises a lower die mechanism and an upper die mechanism, the lower die mechanism comprises a lower die, a first ejection hole is formed in the middle of the lower die, the upper die mechanism comprises an upper die and an ejection unit, the lower surface of the upper die and the upper surface of the lower die enclose to form a die cavity, the pressurizing device comprises a second ejection mechanism, the second ejection mechanism ejects aluminum materials into the die cavity from the first ejection hole and applies pressure to the aluminum materials, the ejection unit comprises a plurality of pull rods, the pull rods penetrate through the upper die to be in contact with the lower surface of the upper die, and the plurality of pull rods can eject the peripheral positions of products in the upper die;

The pulping device comprises a frame body, wherein the frame body comprises an upper connecting plate and a lower connecting plate, and four vertical positioning screw rods are connected between the upper connecting plate and the lower connecting plate through bolts; the upper connecting plate is provided with a first accommodating cup which is in a cylinder shape with an upper opening and a lower opening, the upper part of the first accommodating cup is an upper heat preservation part, a heat preservation unit is arranged in the side wall of the upper heat preservation part, the heat preservation unit comprises an oil inlet, a spiral channel and an oil outlet which are communicated in sequence, heat preservation oil is arranged in the spiral channel, and the bottom of the upper heat preservation part is connected with the upper connecting plate through bolts;

The lower connecting plate is provided with a first ejection mechanism, the first ejection mechanism sequentially comprises an oil cylinder, a first injection rod, a connecting piece and a punch from bottom to top, the lower connecting plate is connected with the oil cylinder through bolts, and the upper end of an output shaft of the oil cylinder is in threaded connection with the bottom of the first injection rod; the inside of the connecting piece and the inside of the punch are hollow structures with circular sections, and the hollow section in the connecting piece is smaller than the hollow section in the punch;

The punch can seal the lower opening of the first accommodating cup and is in sliding fit with the inner wall of the first accommodating cup, the top of the punch is vertical to the side wall of the first accommodating cup, and the punch can move out of the first accommodating cup downwards;

The side wall of the first injection rod is provided with an outer liquid inlet and an outer liquid outlet, the first injection rod is internally provided with a vertical cooling piece, the cooling piece sequentially comprises a fixing part, a liquid inlet and a liquid outlet from bottom to top, the fixing part and the liquid inlet are integrally formed, the liquid inlet and the liquid outlet are welded, the bottom of the fixing part is connected with the first injection rod through bolts, two sealing rings are also arranged between the fixing part and the side wall of the first injection rod, the two sealing rings are arranged below the outer liquid outlet, the side surface of the liquid inlet is provided with an inner liquid inlet, the liquid outlet is a copper pipe, the liquid outlet passes through the connecting piece and is inserted into the punch, the top end of the liquid outlet is an inner liquid outlet, a backflow channel is formed between the cooling piece and the punch, the connecting piece and the space between the first injection rod, the backflow channel is communicated with the inner liquid outlet and the outer liquid inlet, the inner liquid inlet, the liquid outlet, the inner liquid outlet, the backflow channel and the outer liquid outlet are sequentially communicated with the outer liquid outlet; the liquid inlet part is provided with an annular incision, the annular incision is positioned below the inner liquid inlet and above the two sealing rings, and part of cooling liquid is accommodated between the annular incision and the inner wall of the first injection rod.

2. A die casting system as defined in claim 1, wherein: the upper die mechanism further comprises a middle beam plate and an upper die driving piece, the lower end of an output shaft of the upper die driving piece is connected with the middle beam plate, the lower side of the middle beam plate is connected with the upper die, the ejection unit further comprises an ejection driving piece and a connecting plate, the ejection driving piece is arranged in the middle beam plate, the upper end of the output shaft of the ejection driving piece penetrates out of the middle beam plate to be connected with the connecting plate, the upper end of a pull rod is connected with the lower side of the connecting plate, and the lower end of the pull rod sequentially penetrates through the middle beam plate and the upper die.

3. A die casting system as defined in claim 2, wherein: the pressurizing device has the same structure as the pulping device.

4. A die casting system as defined in claim 3, wherein: still including scraping the sediment device, scrape sediment device and include the other sediment mechanism of scraping of crucible and crucible, scrape sediment mechanism and include the frame, be equipped with horizontal migration unit in the frame, be equipped with vertical mobile unit on the horizontal migration unit, the vertical mobile unit is last the level to be equipped with the portion of encorbelmenting, the portion of encorbelmenting is kept away from vertical mobile unit one end and is vertically equipped with scrapes the sediment pole, scrapes sediment pole lower extreme and is equipped with scrapes the sediment board.

5. A die casting system as defined in claim 4, wherein: the inner wall of the crucible is of a circular section, a rotating motor is arranged on the overhanging part, an output shaft of the rotating motor is fixedly connected with a slag scraping rod, the slag scraping rod is rotationally connected with the overhanging part, the slag scraping plate comprises a rotating plate and a fixed plate, the fixed plate can cover the rotating plate, a limiting groove is formed in the fixed plate and is matched with the shape of an upper edge opening of the crucible, the fixed plate is rotationally connected with the slag scraping rod, and the rotating plate is fixedly connected with the slag scraping rod.

6. A die casting system as defined in claim 4, wherein: the side wall of the crucible is provided with a slag groove.

7. A die casting system as defined in claim 6, wherein: the slag groove comprises a disassembling part, the disassembling part can accommodate aluminum slag, a filtering hole is formed in the bottom of the disassembling part, a sealing plate is horizontally arranged on the side wall of the crucible, a plurality of sealing bulges are arranged on the sealing plate, the sealing bulges are hemispherical, and the filtering hole and the sealing bulges are mutually matched.