Bottom pouring type pouring system

Abstract

The utility model discloses a bottom pouring type pouring system, and relates to the technical field of pouring. The material box is divided into a material storage box and a material injection box, a partition plate is arranged in the material box and separates the material storage box from the material injection box, a through hole is formed in the position, close to the bottom face of the material box, of the partition plate, a baffle is arranged in the material injection box, a spoiler is clamped between the baffle and the partition plate in a sliding mode, and a material injection hole is formed in the bottom of the material injection box. The material box is partitioned by arranging the partition plate, molten iron is temporarily stored through the material storage box, slag floats to the surface of the molten iron, the molten iron is conveyed from the bottom of the material box through the through hole, the phenomenon that the slag on the upper layer influences the pouring quality is avoided, the through hole is blocked by arranging the flow blocking plate, circulation of the molten iron when pouring is not conducted is avoided, and the molten iron is conveniently stored in the material storage box; the baffle is arranged to clamp the spoiler, so that the spoiler is convenient to fix and move, and the injection hole is formed, so that molten iron can flow out of the bottom surface of the injection box conveniently for pouring.

Description

TECHNICAL FIELD

[0001] The application relates to a pouring technology field, in particular to a bottom pouring system. BACKGROUND

[0002] The bottom pouring refers to a pouring mode that liquid metal is introduced into a mold cavity from the bottom of a casting, and the mode pours the liquid metal into the mold cavity through an inner runner at the bottom; the mode is stable in filling, the flow of the liquid metal in the mold cavity is relatively stable, the oxidation and gas entrainment of the liquid metal are reduced; the impact on the mold cavity is reduced, the impact on the sand mold and the core is small when the liquid metal is poured from the bottom, and the spattering and oxidation of the liquid metal are avoided.

[0003] In the prior art, the molten iron is placed in a barrel, and an inclined pouring method is adopted to pour the molten iron into a prepared sand mold bag.

[0004] The molten iron is subjected to temperature loss, and slag is precipitated from the molten iron. The slag, which is lower in density than the molten iron, will float to a certain proportion, and form a layer of scum on the surface of the molten iron. The inclined pouring method easily pours the slag on the upper layer of the molten iron into the sand mold bag, thereby affecting the molding quality of the mold. CONTENT OF THE INVENTION

[0005] The application aims to provide a bottom pouring system to improve the problem that the inclined pouring method easily pours the slag on the upper layer of the molten iron into the sand mold bag, thereby affecting the molding quality of the mold.

[0006] The application provides a bottom pouring system, which adopts the following technical scheme:

[0007] The bottom pouring system comprises a barrel and a sand mold bag. The barrel is divided into a storage barrel and a pouring barrel. A partition plate is arranged in the barrel. The storage barrel and the pouring barrel are separated by the partition plate. A through hole is formed in the partition plate close to the bottom surface of the barrel. A baffle plate is arranged in the pouring barrel. A flow resistance plate is slidably clamped between the baffle plate and the partition plate. An injection hole is formed in the bottom of the pouring barrel.

[0008] By adopting the above technical scheme, the barrel is separated by the partition plate. The molten iron is temporarily stored in the storage barrel, so that the slag floats to the surface of the molten iron. The molten iron is transported from the bottom of the barrel through the through hole, so as to avoid the influence of the upper layer of the slag on the pouring quality. The through hole is blocked by the flow resistance plate, so as to avoid the flow of the molten iron when the molten iron is not poured. The storage barrel is convenient for storing the molten iron. The baffle plate is clamped with the flow resistance plate, so as to conveniently fix and move the flow resistance plate. The injection hole is convenient for the molten iron to flow out from the bottom surface of the pouring barrel, and pouring is performed.

[0009] Optionally, a fixed plate is arranged on the top surface of the storage barrel. An activity plate is hingedly connected to one side of the fixed plate.

[0010] By adopting the technical scheme, the movable plate is closed to store molten iron and prevent impurities from entering the storage box.

[0011] Optionally, the flow resistance plate is provided with a lug on both sides, the lug abuts against the upper surface of the material box, and a hanging ring is arranged on the flow resistance plate.

[0012] By adopting the technical scheme, the lug is arranged to fix the flow resistance plate, the hanging ring is arranged to facilitate the crane to connect the flow resistance plate, the crane lifts the flow resistance plate to open the through hole, and pouring is performed.

[0013] Optionally, the bottom surface of the pouring box is funnel-shaped, and the pouring hole is arranged at the center of the bottom surface of the pouring box.

[0014] By adopting the technical scheme, the funnel-shaped pouring box bottom is arranged to facilitate the gathering of molten iron, pouring is performed, and the accumulation of molten iron in the pouring box is avoided to form iron slag, waste raw materials, and damage to the pouring box.

[0015] Optionally, a flow guide pipe is arranged at the center of the bottom surface of the pouring box, and the inner wall diameter of the flow guide pipe is the same as the diameter of the pouring hole.

[0016] By adopting the technical scheme, the flow guide pipe is arranged to facilitate the gathering of molten iron, the flow rate of molten iron is unified, the dispersion of molten iron is avoided, the flow rate is uniform, and the pouring quality is improved.

[0017] Optionally, the sand mold package includes an upper sand mold and a lower sand mold, the sand mold package is provided with a fastener, and the upper sand mold and the lower sand mold are fixed together through the fastener.

[0018] By adopting the technical scheme, the sand mold package is arranged to store molten iron, the fastener is arranged to tightly fix the upper sand mold and the lower sand mold, the heat preservation property of the sand mold package is improved, and the precision of the mold is improved.

[0019] Optionally, a sprue cup is arranged in the upper sand mold, the sprue cup is funnel-shaped, a direct sprue is connected to the bottom surface of the sprue cup, and the sprue cup and the direct sprue penetrate the upper sand mold.

[0020] By adopting the technical scheme, the funnel-shaped sprue cup is arranged to expand the opening range, molten iron is poured into the sprue cup, pouring is facilitated, the poured molten iron is gathered and the flow rate is unified, the pouring quality is improved, and the direct sprue is arranged to transport molten iron to the cooling well.

[0021] Optionally, a cooling well is arranged in the lower sand mold, and the cooling well is arranged opposite to and in communication with the direct sprue.

[0022] Through the technical scheme, the cooling well is arranged to buffer the molten iron entering from the sprue, and since the head molten iron has temperature difference with other molten iron, the mixed pouring of molten iron with different stability will affect the mold forming quality, and the cooling well is arranged to buffer and unify the temperature of the molten iron.

[0023] Optionally, the cooling well is provided with a shunt channel in communication with the side surface, the bottom surface of the shunt channel is arc-shaped, and the shunt channel is provided with a cavity at one end.

[0024] Through the technical scheme, the shunt channel is arranged to make the molten iron flow into the cavity synchronously, unify the molten iron quality of the same type of mold, reduce the difference between the molds, the arc-shaped bottom surface facilitates the flow of the molten iron, reduces the contact area, reduces the temperature loss of the molten iron, reduces the formation of slag, and improves the pouring quality.

[0025] Optionally, the cavity is provided with a vent groove, and the vent groove penetrates the upper sand mold.

[0026] Through the technical scheme, the vent groove is arranged to form a communicating vessel with the pipe formed by the pouring cup and the sprue, and through the principle of the communicating vessel, the pouring speed and the pouring amount of the molds are the same by cooperating with the shunt channel, and the quality difference between the poured molds is reduced.

[0027] In summary, the present application has the following beneficial technical effects of the bottom pouring system:

[0028] 1. The partition plate is arranged to separate the material box, the molten iron is temporarily stored in the storage box, the slag floats to the surface of the molten iron, the through hole is arranged to transport the molten iron from the bottom of the material box, the upper slag does not affect the pouring quality, the flow plate is arranged to block the through hole, the molten iron does not flow when pouring, the storage box is convenient for storing the molten iron, the baffle is arranged to engage the flow plate, the flow plate is convenient for fixing and moving, the pouring hole is arranged, the molten iron flows out from the bottom surface of the pouring box, and pouring is carried out.

[0029] 2. The flow guide pipe is arranged to facilitate the flow of the molten iron, unify the flow rate of the molten iron, avoid dispersion of the molten iron, and reduce the pouring quality.

[0030] 3. The vent groove is arranged to form a communicating vessel with the pipe formed by the pouring cup and the sprue, and through the principle of the communicating vessel, the pouring speed and the pouring amount of the molds are the same by cooperating with the shunt channel, and the quality difference between the poured molds is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structure schematic view of the bottom pouring system as a whole.

[0032] Figure 2 is a structure sectional view of the bottom pouring system as a whole.

[0033] In the figure, 1, material box; 11, storage box; 111, fixed plate; 112, movable plate; 12, injection box; 121, injection hole; 2, sand mold bag; 21, upper sand mold; 211, sprue cup; 212, straight runner; 22, lower sand mold; 221, cooling well; 222, runner; 223, cavity; 224, vent groove; 3, baffle; 31, through hole; 4, baffle; 5, resistance plate; 51, lug; 52, hanging ring; 6, flow guide pipe; 7, fastener. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings Figure 1 - the accompanying drawings Figure 2 , the present application is further described in detail.

[0035] The bottom pouring gating system, referring to Figure 1 , Figure 2 , including material box 1, sand mold bag 2;

[0036] The material box 1 is divided into storage box 11 and injection box 12, and the material box 1 is provided with baffle 3, which separates the storage box 11 and the injection box 12, and the baffle 3 is provided with through hole 31 close to the bottom surface of the material box 1; The top surface of the storage box 11 is provided with a fixed plate 111 which is integrally arranged with the storage box 11, and the fixed plate 111 is provided with a recess on one side, and the movable plate 112 is provided with a protrusion on one side corresponding to the recess, and the protrusion is clamped in the recess, and the movable plate 112 is fixedly connected by the hinge pin.

[0037] Referring to Figure 1 , Figure 2 , the injection box 12 is provided with a baffle 4, and the baffle 4 and the baffle 3 are slidingly clamped with a resistance plate 5, the resistance plate 5 closes the through hole 31 by covering the through hole 31, and the resistance plate 5 is supported and fixed in the baffle 4 and the baffle 3 by the gravity of the resistance plate 5 and the lug 51, and the resistance plate 5 is provided with a hanging ring 52; The resistance plate 5 can be lifted by connecting the hanging ring 52 with the crane, the bottom surface of the injection box 12 is funnel-shaped, the bottom surface of the injection box 12 is provided with an injection hole 121 at the center, and the outer bottom surface of the injection box 12 is provided with a flow guide pipe 6 at the center, and the inner wall diameter of the flow guide pipe 6 is the same as the diameter of the injection hole 121.

[0038] Referring to Figure 1 , Figure 2The sand mold bag 2 includes an upper sand mold 21 and a lower sand mold 22. The sand mold bag 2 is composed of a frame and sand tightly packed within the frame. Fasteners 7 are provided on the sand mold bag 2. Several sets of fasteners 7 are provided on the upper sand mold 21 and the lower sand mold 22 respectively. The fasteners 7 have screw holes and are fixed and tightened by screwing bolts. A pouring cup 211 is provided inside the upper sand mold 21. The pouring cup 211 is located directly below the guide pipe 6. The pouring cup 211 is funnel-shaped. The bottom surface of the pouring cup 211 is connected to the sprue 212. The pouring cup 211 and the sprue 212 are connected through the upper sand mold 21. The pouring cup 211 and the sprue 212 are sand molds and are not solid.

[0039] Reference Figure 1 , Figure 2 A cooling well 221 is provided inside the lower sand mold 22. The cooling well 221 is directly opposite to and connected to the sprue 212. A runner 222 is connected to the side of the cooling well 221. The bottom of the cooling well 221 is lower than the runner 222 to buffer the molten iron and unify the iron temperature. The bottom of the runner 222 is arc-shaped. A cavity 223 is provided at one end of the runner 222. A venting groove 224 is provided on the cavity. The venting groove 224 is provided through the upper sand mold 21. The venting groove 224, together with the pouring cup 211 and the sprue 212, forms a communicating vessel.

[0040] The implementation principle of this application embodiment is as follows:

[0041] In actual operation, the movable plate 112 is opened to inject molten iron into the molten iron injection box 12. After reaching the appropriate amount, the movable plate 112 is closed, and the material box 1 is moved onto the sand mold ladle 2. The guide pipe 6 is directly opposite the pouring cup 211. The flow baffle 5 is raised by the crane, and the molten iron flows into the molten iron injection box 12 from the through hole 31, and then flows into the sand mold ladle 2 from the molten iron injection box 12, so as to avoid the slag on the upper layer of the storage box 11 from reducing the casting effect.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bottom gating gating system, characterized in that: Including the material box (1), sand mold bag (2); The material box (1) is divided into storage material box (11) and injection material box (12), the material box (1) is provided with the baffle (3), the storage material box (11) and injection material box (12) are separated by the baffle (3), the baffle (3) is close to the bottom surface of the material box (1) and is provided with the through hole (31), the injection material box (12) is provided with the baffle (4), the baffle (4) and the baffle (3) are slidably clamped with the flow resistance plate (5), and the injection material box (12) is provided with the injection hole (121) in the bottom.

2. The bottom-pouring gating system of claim 1, wherein: The top surface of the storage material box (11) is provided with a fixed plate (111), and the fixed plate (111) is hinged with a movable plate (112) on one side.

3. The bottom-gated gating system according to claim 1, characterized in that: The flow resistance plate (5) is provided with a hanging ear (51) on both sides, and the hanging ear (51) abuts against the upper surface of the material box (1), and the flow resistance plate (5) is provided with a hanging ring (52).

4. The bottom-fill gating system of claim 1, wherein: The bottom surface of the injection material box (12) is funnel-shaped, and the injection hole (121) is arranged at the center of the bottom surface of the injection material box (12).

5. The bottom-fill gating system of claim 1, wherein: The center position of the bottom surface of the injection material box (12) is provided with a flow guide pipe (6), and the inner wall diameter of the flow guide pipe (6) is the same as the diameter of the injection hole (121).

6. The bottom-fill gating system of claim 1, wherein: The sand mold bag (2) comprises an upper sand mold (21) and a lower sand mold (22), and the sand mold bag (2) is provided with a fastener (7), and the upper sand mold (21) and the lower sand mold (22) are fixed together by the fastener (7).

7. The bottom-pouring gating system of claim 6, wherein: The upper sand mold (21) is provided with a pouring cup (211), which is funnel-shaped, and the pouring cup (211) is connected with a straight sprue (212) at the bottom, and the pouring cup (211) is communicated with the straight sprue (212) and penetrates the upper sand mold (21).

8. The bottom-pouring gating system of claim 6, wherein: The lower sand mold (22) is provided with a cooling well (221), and the cooling well (221) is opposite and communicated with the straight sprue (212).

9. The bottom-pouring gating system of claim 8, wherein: The side surface of the cooling well (221) is communicated with a shunt channel (222), and the bottom surface of the shunt channel (222) is arc-shaped, and the shunt channel (222) is provided with a cavity (223) at one end.

10. The bottom-pouring gating system of claim 9, wherein: The cavity (223) is provided with a ventilation groove (224), and the ventilation groove (224) penetrates the upper sand mold (21).

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