Ingot casting forming device capable of reducing oxidation of tin alloy and accelerating cooling

Abstract

The utility model relates to the technical field of welding of preformed soldering lugs, in particular to a cast ingot forming device capable of reducing tin alloy oxidation and accelerating cooling, which comprises three cylinders, a lower die body and an upper die body, three mounting grooves are uniformly formed in the bottom of the lower die body, clamping blocks are fixedly mounted at the tops of the cylinders, and flanges are arranged on the outer sides of the tops of the cylinders. The clamping blocks are installed in the installation grooves in a clamped mode, the flanges are in threaded connection with the bottom of the lower die body through screws for fixation, the air cylinders can lift the lower die body to make the lower die body and the upper die body be in die assembly contact sealing, and the first hollow pipelines and the second hollow pipelines are arranged on the two sides in the upper die body and the two sides in the lower die body correspondingly so that cooling water can conveniently pass through in a circulating mode. And the extraction opening is formed in one end of the top of the upper mold body, so that protective gas can be filled into the upper mold body after air is extracted, and the surface of the cast ingot is smoother and smoother.

Description

TECHNICAL FIELD

[0001] The utility model relates to preformed solder piece's welding technical field, concretely is a kind of ingot forming device of reducing tin alloy oxidation and accelerating cooling. BACKGROUND

[0002] With the development of electronic industry, preformed solder piece is widely used in PCB assembly, automobile parts assembly, connector and terminal equipment, chip connection etc., and the ingot process of preformed solder piece needs to be first allocated with alloy components, then raw materials are melted into liquid alloy in smelting furnace, and then liquid alloy is poured into ingot mold, and alloy ingot is obtained after cooling and demolding.

[0003] However, the prior art has the following defects:

[0004] However, the existing technology for preformed solder piece ingot forming is a relatively single groove, and the demolding after cooling relies on manual mold turning and even manual knocking to demold the ingot from the mold, which increases labor cost and easily damages the ingot or even destroys the mold, and the liquid alloy and air often react during pouring, and the generated oxidation impurities are also poured into the ingot mold, resulting in many impurities in the ingot and poor welding performance of the solder piece. UTILITY MODEL CONTENT

[0005] The utility model aims at providing an ingot forming device for reducing tin alloy oxidation and accelerating cooling to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: an ingot forming device for reducing tin alloy oxidation and accelerating cooling, comprising three cylinders, a lower mold body and an upper mold body, the bottom of the upper mold body is in close abutment with the top of the lower mold body, a lower mold cavity is formed in the middle of the top of the lower mold body, an upper mold cavity is formed in the middle of the bottom of the upper mold body, a glass observation window is arranged at one end of the top of the upper mold body, an air extraction port is formed on the side of the top of the upper mold body close to the glass observation window, two first hollow pipes are evenly formed on both sides of the inside of the upper mold body, and four first hollow pipes are distributed on both sides of the upper mold cavity, and a second hollow pipe is symmetrically formed on both sides of the inside of the lower mold body, and two second hollow pipes are respectively located on both sides of the lower mold cavity.

[0007] The first hollow pipe and the second hollow pipe of the above technical scheme facilitate the flow of cooling water, take away the heat conducted to the mold by the ingot, accelerate the cooling speed, improve the efficiency, and the air extraction port can extract the air inside the mold and fill in the protective gas.

[0008] The opening end of the lower mold cavity is provided with an outer convex structure, the opening end of the upper mold cavity is provided with an inner concave structure, and the outer wall of the outer convex structure is bonded with a sealing gasket and the outer convex structure is clamped and installed in the inner concave structure.

[0009] By adopting the technical scheme, the inner concave structure and the outer convex structure are closely fitted, so that the upper and lower mold cavities are perfectly matched, and the smoothness of the ingot surface is ensured.

[0010] A square through slot is formed on one side of the top of the upper mold body, the glass observation window is embedded on the top of the square through slot, a pouring opening is formed in the middle of the top of the upper mold body away from the glass observation window, and three grooves are uniformly distributed on the bottom of the two sides of the upper mold body.

[0011] By adopting the technical scheme, the glass observation window can observe the real-time height of the ingot pouring, and the upper mold body can be pried up through the grooves, so as to facilitate demolding.

[0012] First water inlet pipes and first water outlet pipes are fixedly installed at the two ends of the first hollow pipes, second water inlet pipes and second water outlet pipes are fixedly installed at the two ends of the second hollow pipes, and the first water inlet pipes, the first water outlet pipes, the second water inlet pipes and the second water outlet pipes are located on the outside of the upper mold body and the outside of the lower mold body.

[0013] By adopting the technical scheme, the first water inlet pipes, the second water inlet pipes, the first water outlet pipes and the second water outlet pipes facilitate the circulation of cooling water into the first hollow pipes and the second hollow pipes.

[0014] Two handles are fixedly installed on the two sides of the upper mold body, the handles are hourglass-shaped with longer middle parts, and a plurality of annular grooves are uniformly formed on the outer wall of the handle.

[0015] By adopting the technical scheme, the handles on the two sides of the upper mold body facilitate lifting the upper mold body for demolding.

[0016] Three mounting grooves are uniformly formed in the middle of the bottom surface of the lower mold body, a clamping block is fixedly installed on the top of the telescopic end of the air cylinder, a flange is arranged on the outside of the top of the telescopic end of the air cylinder, the clamping block is clamped and installed in the mounting groove, and the flange is in close abutment with the bottom of the lower mold body.

[0017] By adopting the technical scheme, the three air cylinders are located at the bottom of the lower mold body, which can lift the lower mold body to contact and seal with the upper mold body.

[0018] Four threaded through holes are uniformly formed on the flange, threaded holes are formed in the corresponding positions of the bottom of the lower mold body, the flange is fixedly connected with the bottom of the lower mold body through screws, and a bottom plate is arranged on the bottom of the air cylinder and a floor mat is bonded to the bottom of the bottom plate.

[0019] With the technical scheme, the lower die body is detachable from the cylinder, and the ground mat at the bottom of the bottom plate plays a role of anti-skid.

[0020] Compared with the prior art, the utility model has the advantages of:

[0021] The utility model discloses reduce even eliminate the oxidizing effect of air to alloy liquid in the pouring and cooling process, so that the ingot surface poured is more even and smooth, and the internal oxidation slag and other impurities are also less even without. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the whole structure schematic diagram of the utility model;

[0023] Figure 2 It is the mould front surface cross section structure schematic diagram of the utility model;

[0024] Figure 3 It is the upper die body structure schematic diagram of the utility model;

[0025] Figure 4 It is the lower die body structure schematic diagram of the utility model;

[0026] Figure 5 It is the lower die body overhead cross section plane schematic diagram of the utility model;

[0027] Figure 6 It is the cylinder structure schematic diagram of the utility model.

[0028] In the drawing: 1, cylinder;2, lower die body;3, upper die body;4, glass observation window;5, air extraction port;6, pouring port;7, recess;8, bottom plate;9, square through slot;10, upper die cavity;11, first hollow pipe;12, concave structure;13, lower die cavity;14, second hollow pipe;15, mounting groove;16, convex structure;17, first water inlet pipe;18, first water outlet pipe;19, second water inlet pipe;20, second water outlet pipe;21, flange;22, clamping block;23, handle. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0030] Referring to Figures 1-6 The utility model provides a kind of tin alloy oxidation and accelerate cooling's ingot forming device, including three cylinders 1, lower mould body 2 and upper mould body 3, the bottom of upper mould body 3 and the top of lower mould body 2 are closely abutted, the middle of lower mould body 2 top is equipped with lower mould cavity 13, the middle of upper mould body 3 bottom is equipped with upper mould cavity 10, one end of upper mould body 3 top is equipped with glass observation window 4, one side of upper mould body 3 top is equipped with suction port 5 near glass observation window 4, two sides in the inside of upper mould body 3 are evenly equipped with two first hollow ducts 11 and four first hollow ducts 11 are distributed in the two sides of upper mould cavity 10 two by two, two sides in the inside of lower mould body 2 are symmetrically equipped with second hollow duct 14 and two second hollow ducts 14 are located at the two sides of lower mould cavity 13 respectively, upper mould body 3 is stacked on the top of lower mould body 2.

[0031] The open end of lower mould cavity 13 is equipped with outer convex structure 16, the open end of upper mould cavity 10 is equipped with inner concave structure 12, the outer wall of outer convex structure 16 is bonded with sealing washer and outer convex structure 16 is installed in the inside of inner concave structure 12, upper mould cavity 10 and lower mould cavity 13 are split to form complete mould cavity.

[0032] One side of upper mould body 3 top is equipped with square through slot 9, glass observation window 4 is embedded in the top of square through slot 9, the middle of the end of upper mould body 3 top away from glass observation window 4 is equipped with pouring port 6, the bottom of the two sides of upper mould body 3 is evenly distributed with three grooves 7, and the bottom of square through slot 9 is communicated with the top of upper mould cavity 10.

[0033] The two ends of first hollow duct 11 are fixedly installed with first water inlet pipe 17 and first water outlet pipe 18 respectively, the two ends of second hollow duct 14 are fixedly installed with second water inlet pipe 19 and second water outlet pipe 20 respectively, and first water inlet pipe 17, first water outlet pipe 18, second water inlet pipe 19 and second water outlet pipe 20 are all located on the outside of upper mould body 3 and the outside of lower mould body 2.

[0034] Two handles 23 are fixedly installed on the two sides of upper mould body 3, handle 23 is hourglass-shaped with longer middle part, a plurality of annular grooves are evenly formed on the outer wall of handle 23, and the outer side of handle 23 is uneven, so that the friction is increased.

[0035] The middle of the bottom of lower mould body 2 is evenly equipped with three mounting grooves 15, the top of telescopic end of cylinder 1 is fixedly installed with clamping block 22, and the outside of the top of telescopic end of cylinder 1 is equipped with flange 21, clamping block 22 is installed in the inside of mounting groove 15, the top of flange 21 is closely abutted with the bottom of lower mould body 2, and mounting groove 15 and clamping block 22 are both cylindrical.

[0036] Four threaded through holes are evenly arranged on the flange 21, and threaded holes are arranged on the bottom of the lower mold body 2 corresponding to the threaded through holes, the flange 21 is fixedly connected with the bottom of the lower mold body 2 through screws, the bottom of the cylinder 1 is provided with a bottom plate 8, and the bottom of the bottom plate 8 is bonded with a ground mat, and the cylinder 1 is telescopic.

[0037] Working principle: when the utility model is used, first, the lower mold body 2 is erected on the top of the three cylinders 1, the clamping block 22 is clamped and installed in the installation groove 15, the flange 21 is fixedly connected with the bottom of the lower mold body 2 through screws, then the upper mold body 3 is clamped and installed on the top of the lower mold body 2, the upper mold cavity 10 and the lower mold cavity 13 form a cuboid ingot cavity, the air in the sealing mold is extracted from the air outlet 5, then the air extraction is closed, a certain amount of protective gas is filled into the inside from the air outlet 5, after the aeration is finished, pouring is started, the ingot height is observed on the glass observation window 4 during pouring, when the height is appropriate, pouring is stopped, the cooling circulating water switch is opened, the ingot cooling is accelerated, the cooling is about two minutes, the cylinder 1 is closed, the lower mold body 2 is lowered, the ingot is separated from the upper mold body 3 due to gravity, and the ingot is taken out.

[0038] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A ingot forming apparatus for reducing oxidation and accelerating cooling of a tin alloy, comprising three cylinders (1), a lower die body (2) and an upper die body (3), characterized in that: The bottom of the upper die body (3) is in close abutment with the top of the lower die body (2), the middle of the top of the lower die body (2) is provided with a lower die cavity (13), the middle of the bottom of the upper die body (3) is provided with an upper die cavity (10), one end of the top of the upper die body (3) is provided with a glass observation window (4), one side of the top of the upper die body (3) close to the glass observation window (4) is provided with an air exhaust port (5), the two sides of the inside of the upper die body (3) are uniformly provided with two first hollow pipes (11), and the four first hollow pipes (11) are distributed on the two sides of the upper die cavity (10) in pairs, and the two sides of the inside of the lower die body (2) are symmetrically provided with second hollow pipes (14), and the two second hollow pipes (14) are located on the two sides of the lower die cavity (13) respectively.

2. The ingot forming apparatus of claim 1, wherein: The opening end of the lower die cavity (13) is provided with an outer convex structure (16), the opening end of the upper die cavity (10) is provided with an inner concave structure (12), the outer wall of the outer convex structure (16) is bonded with a sealing gasket, and the outer convex structure (16) is clamped and installed in the inside of the inner concave structure (12).

3. The ingot forming apparatus of claim 1, wherein: One side of the top of the upper die body (3) is provided with a square through slot (9), the glass observation window (4) is embedded in the top of the square through slot (9), the middle of one end of the top of the upper die body (3) away from the glass observation window (4) is provided with a pouring port (6), and the bottoms of the two sides of the upper die body (3) are uniformly distributed with three grooves (7).

4. The ingot forming apparatus of claim 1, wherein: The two ends of the first hollow pipe (11) are fixedly installed with a first water inlet pipe (17) and a first water outlet pipe (18) respectively, the two ends of the second hollow pipe (14) are fixedly installed with a second water inlet pipe (19) and a second water outlet pipe (20) respectively, and the first water inlet pipe (17), the first water outlet pipe (18), the second water inlet pipe (19) and the second water outlet pipe (20) are located on the outside of the upper die body (3) and the outside of the lower die body (2).

5. The ingot forming apparatus of claim 1, wherein: Two handles (23) are uniformly fixedly installed on the two sides of the upper die body (3), the handle (23) is a sandglass-shaped with a longer middle part, and a plurality of annular grooves are uniformly formed in the outer wall of the handle (23).

6. The ingot forming apparatus of claim 1, wherein: The middle of the bottom surface of the lower die body (2) is uniformly provided with three mounting grooves (15), the top of the telescopic end of the air cylinder (1) is fixedly installed with a clamping block (22), the outside of the top of the telescopic end of the air cylinder (1) is provided with a flange (21), the clamping block (22) is clamped and installed in the inside of the mounting groove (15), and the top of the flange (21) is in close abutment with the bottom of the lower die body (2).

7. The ingot forming apparatus of claim 6, wherein: Four threaded holes are uniformly formed in the flange (21), threaded holes are formed in the bottom of the lower die body (2) corresponding to the positions of the threaded holes, the flange (21) is fixedly connected with the bottom of the lower die body (2) through screws, and the bottom of the air cylinder (1) is provided with a bottom plate (8), and the bottom of the bottom plate (8) is bonded with a floor mat.

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