Corrosion-resistant sprue bush assembly of die-casting machine

Abstract

The utility model relates to the technical field of casting production, in particular to a corrosion-resistant sprue bush assembly of a die-casting machine, which comprises a sprue bush main body, a connecting block is mounted at the top of the sprue bush main body, a guide pipe is mounted at the bottom of the sprue bush main body, the position of the guide pipe is the same as that of the connecting block, and two conveying ports are formed in the connecting block. And the two material conveying openings both penetrate through the connecting block and the sprue bush body and extend into the guide pipe, and two material falling pipes communicating with the adjacent material conveying openings are installed in the guide pipe. According to the device, through ingenious cooperation of the rotary knob and the rotating screw rod, up-down movement of the scraping plate is achieved, raw materials attached to the inner wall of the guide pipe and the outer wall of the guide rod can be easily scraped off through the design, and therefore the problems of corrosion and blockage caused by raw material residues are avoided, waste of the raw materials is reduced, and meanwhile the production efficiency is improved. And the moving range of the scraping plate is accurately controlled through the limiting sliding groove, and the effectiveness and safety of cleaning work are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to casting production technical field, concretely is a die -casting machine corrosion -resistant sprue bush assembly. BACKGROUND

[0002] The die -casting machine is a machine for pressure casting, which can pressurize molten metal into a mold and cool it into a solid metal casting, and the sprue bush is an important part of the die -casting machine, which connects the nozzle of the injection molding machine and the main runner of the mold to guide the molten plastic into the mold cavity.

[0003] During the use of the die -casting machine, the delivery of raw materials is an important link. However, after the delivery of raw materials is completed, some raw materials will remain on the inner wall of the guide pipe and the outer wall of the guide rod of the sprue bush assembly in the traditional die -casting machine. If these residual raw materials are not cleaned in time, not only will they cause waste of raw materials, but also they will cause corrosion problems after a long time of accumulation, and even cause the sprue bush assembly to be blocked, which seriously affects the normal operation of the die -casting machine and the quality of the die -casting parts.

[0004] For example, the die -casting machine corrosion -resistant sprue bush assembly provided in the publication "CN221022157U" can realize the buffering force between the nozzle and the utility model through the setting of the elastic member, can retract after pouring is completed, avoid the occurrence of too much edge material reservation, avoid hard contact, and can provide stable pressure.

[0005] However, the above device still has the following problems in the implementation process:

[0006] After the raw materials are poured through the sprue channel, some raw materials will inevitably remain in the sprue channel. After the raw materials in the sprue channel solidify in the sprue channel, the material delivery channel will be narrowed or blocked, hindering the subsequent material delivery work, which needs to be cleaned or replaced manually, which is more troublesome to use. UTILITY MODEL CONTENTS

[0007] The utility model aims to provide a die -casting machine corrosion -resistant sprue bush assembly to solve the problems raised in the above background technology.

[0008] To achieve the above purpose, the utility model provides the following technical scheme:

[0009] A die -casting machine corrosion -resistant sprue bush assembly, comprising a sprue bush main body, a connecting block is installed on the top of the sprue bush main body, a guide pipe with the same position as the connecting block is installed at the bottom of the sprue bush main body, two material delivery openings are formed on the connecting block, both of the material delivery openings penetrate through the connecting block and the sprue bush main body and extend to the inside of the guide pipe, two blanking pipes are installed in the inside of the guide pipe and are in communication with the adjacent material delivery openings;

[0010] The guide tube is also equipped with a guide rod, and a material conveying cavity is formed between the outer wall of the guide rod and the inner wall of the guide tube. The guide tube is also equipped with a cleaning component for cleaning the material conveying cavity.

[0011] Preferably, two limiting grooves are symmetrically formed in the inner wall of the guide tube, and the cleaning component is disposed in the two limiting grooves. The cleaning component includes a rotating screw and a fixed rod. The rotating screw is rotatably connected to one of the limiting grooves, and the fixed rod is fixedly connected to the other limiting groove. Both the rotating screw and the fixed rod are provided with a synchronizing block, and a scraper for cleaning the conveying chamber is installed between the two synchronizing blocks.

[0012] Preferably, the scraper is slidably connected to the guide rod, the outer wall of the scraper is in contact with the inner wall of the guide tube, and the scraper is also provided with two sliding holes, the diameter of the two sliding holes being the same as the diameter of the material discharge tube inside the sprue sleeve body;

[0013] A knob is also installed on the top of the rotating screw. The knob is rotatably connected to the inner wall of the top of the guide tube, and one side of the knob is located on the outer surface of the guide tube.

[0014] Preferably, the outer surface of the guide tube is also fitted with two cooling sleeves, the bottom of the guide tube is fitted with a lower limiting plate, and the cooling sleeves are disposed between the main body of the sprue sleeve and the lower limiting plate.

[0015] Preferably, both cooling jackets have water inlets at their tops, the main body of the sprue jacket has a water outlet connected to the water inlets on the cooling jackets, and the top of the sprue jacket is also equipped with two water pipes connected to the water outlets.

[0016] Preferably, the outer wall of the guide rod and the inner wall of the guide tube are coated with a corrosion-resistant coating.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The cleaning component of this utility model can quickly clean the conveying chamber after the material is conveyed, by adjusting the cleaning component, to avoid material residue causing blockage of the conveying chamber. The clever cooperation of the knob and the rotating screw realizes the up and down movement of the scraper. This design allows the material adhering to the inner wall of the guide tube and the outer wall of the guide rod to be easily scraped off, thereby avoiding corrosion and blockage caused by material residue and reducing material waste. At the same time, the movement range of the scraper is precisely controlled by the limiting slide groove, ensuring the effectiveness and safety of the cleaning work.

[0019] 2, The utility model still adopted cooling jacket design, through to the cooling jacket input cooling water, the guide pipe cooling treatment, this design effectively avoided long time high temperature to the damage of guide pipe, prolonged the service life of assembly, improved the overall stability and reliability of die casting machine. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the first view schematic drawing of the utility model;

[0021] Figure 2 It is the part structure schematic drawing on the sprue bush main body in the utility model;

[0022] Figure 3 It is the internal structure schematic drawing of sprue bush main body and guide pipe in the utility model;

[0023] Figure 4 It is the structure schematic drawing of cleaning assembly in the utility model;

[0024] Figure 5 It is the utility model Figure 3 The enlarged schematic drawing of A place in the utility model.

[0025] In the drawing: 1, sprue bush main body;11, guide pipe;12, connecting block;13, feed port;14, water inlet;15, lower limit plate;16, guide rod;17, blanking pipe;18, limit sliding slot;2, cooling jacket;21, water delivery pipe;3, cleaning assembly;31, rotating screw;32, fixed rod;33, synchronous block;34, scraper;35, knob;36, sliding hole. DETAILED DESCRIPTION

[0026] 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 protection of the utility model.

[0027] Embodiment one, please refer to Figures 1-4The utility model relates to a die casting machine corrosion -resistant sprue bush assembly, including sprue bush body 1, the top of sprue bush body 1 is equipped with connecting block 12, the bottom of sprue bush body 1 is equipped with the guide pipe 11 same as the position of connecting block 12, two material feeding mouths 13 are seted up on connecting block 12, two material feeding mouths 13 all extend to the inside of guide pipe 11 and are in threaded connection with the adjacent material feeding mouth 13, two blanking pipes 17 are installed in the inside of guide pipe 11, guide rod 16 is also installed in guide pipe 11, and the outer wall of guide rod 16 and the inner wall of guide pipe 11 form material feeding cavity, and the cleaning assembly 3 for cleaning material feeding cavity is also arranged in guide pipe 11, and the outer wall of guide rod 16 and the inner wall of guide pipe 11 are all coated with corrosion -resistant coating,

[0028] In use, the raw material is injected through the material feeding mouth 13, and the raw material flows downward to the blanking pipe 17 through the material feeding mouth 13 and flows to the material feeding cavity through the blanking pipe 17, and enters the forming cavity of the die casting machine through the bottom of the material feeding cavity and is die cast formed;

[0029] The corrosion -resistant coating arranged on the inner wall of guide pipe 11 and the outer wall of guide rod 16 can greatly increase the corrosion resistance of the overall structure;

[0030] When the material feeding is completed, the cleaning assembly 3 is adjusted to clean the material feeding cavity, and the raw material remaining in the material feeding cavity is scraped off, so that the raw material is prevented from solidifying in the material feeding cavity and affecting subsequent material feeding;

[0031] In the embodiment, the outer surface of the guide pipe 11 is also sleeved with two cooling jackets 2, the bottom of the guide pipe 11 is provided with a lower limiting plate 15, the cooling jacket 2 is arranged between the sprue bush body 1 and the lower limiting plate 15, the top of the two cooling jackets 2 is provided with a water inlet, the sprue bush body 1 is provided with a water passage 14 in communication with the water inlet of the cooling jacket 2, and the top of the sprue bush body 1 is provided with two water conveying pipes 21 in communication with the water passage 14;

[0032] After the raw material is scraped off, cooling water is input into the cooling jacket 2 through the water conveying pipe 21, the guide pipe 11 is cooled through the cooling jacket 2, and damage of the guide pipe 11 caused by long-time high temperature is avoided;

[0033] In the embodiment, two limiting sliding grooves 18 are symmetrically arranged in the inner wall of the guide pipe 11, and the cleaning assembly 3 is arranged in the two limiting sliding grooves 18. The cleaning assembly 3 comprises a rotating screw 31 and a fixed rod 32. The rotating screw 31 is rotatably connected to one of the limiting sliding grooves 18, and the fixed rod 32 is fixedly connected to the other limiting sliding groove 18. Synchronous blocks 33 are arranged on the rotating screw 31 and the fixed rod 32. A scraper 34 for cleaning the material conveying cavity is arranged between the two synchronous blocks 33. The scraper 34 is slidably connected to the guide rod 16. The outer side wall of the scraper 34 is in contact with the inner wall of the guide pipe 11. Two sliding holes 36 are arranged on the scraper 34, and the diameters of the two sliding holes 36 are the same as the diameters of the material falling pipes 17 in the nozzle sleeve body 1. A knob 35 is arranged on the top of the rotating screw 31. The knob 35 is rotatably connected to the inner wall of the top of the guide pipe 11, and one side of the knob 35 is located on the outer surface of the guide pipe 11.

[0034] When the material conveying cavity needs to be cleaned, the knob 35 located on the outer surface of the nozzle sleeve body 1 is first rotated to drive the rotating screw 31 to rotate. In the initial state, the scraper 34 is located at the highest position in the guide pipe 11, and the two sliding holes 36 are respectively clamped on the outer surfaces of the two material falling pipes 17. The bottom of the scraper 34 is higher than the bottom of the material falling pipe 17. When the knob 35 drives the rotating screw 31 to rotate, the synchronous blocks 33 on the rotating screw 31 slide downward along the limiting sliding groove 18 under the action of the rotating screw 31, and simultaneously drive the scraper 34 to slide downward. The synchronous block 33 on the other side slides along the fixed rod 32 under the action of the scraper 34. The raw materials attached to the inner wall of the guide pipe 11 and the outer wall of the guide rod 16 are scraped off through the movement of the scraper 34.

[0035] When the scraper 34 moves to the lowest position of the limiting sliding groove 18, the knob 35 is reversely rotated to reverse the rotating screw 31, so that the synchronous blocks 33 drive the scraper 34 to move to the top of the guide pipe 11 again, thereby facilitating the next cleaning work.

[0036] Working principle: when in use, the raw materials are injected through the material conveying port 13, and then flow downward to the material falling pipes 17 and flow to the material conveying cavity through the material falling pipes 17. The raw materials enter the forming cavity of the die casting machine through the bottom of the material conveying cavity and are die cast formed.

[0037] When the feeding is completed, the knob 35 outside the sprue bushing body 1 is rotated to drive the rotating screw 31 to rotate, in the initial state, the scraper 34 is located at the highest position in the guide pipe 11, and the two sliding holes 36 are respectively clamped on the outer surfaces of the two material falling pipes 17, the bottom of the scraper 34 is higher than the bottom of the material falling pipe 17, when the knob 35 drives the rotating screw 31 to rotate, the synchronous block 33 on the rotating screw 31 slides downward along the limiting sliding groove 18 under the action of the rotating screw 31, and drives the scraper 34 to slide downward, the synchronous block 33 on the other side slides along the fixed rod 32 under the action of the scraper 34, and the raw materials attached to the inner wall of the guide pipe 11 and the outer wall of the guide rod 16 are scraped off through the movement of the scraper 34;

[0038] When the scraper 34 moves to the lowest position of the limiting sliding groove 18, the knob 35 is reversely rotated to drive the rotating screw 31 to reverse, so that the synchronous block 33 drives the scraper 34 to move to the top of the guide pipe 11 again, facilitating the cleaning work next time.

[0039] After the raw materials are scraped off, the cooling water is input into the cooling jacket 2 through the water feeding pipe 21, the guide pipe 11 is cooled through the cooling jacket 2, so that the damage of the guide pipe 11 caused by long time high temperature is avoided.

[0040] It should be noted that the devices in the present application are common market devices, and can be selected according to the needs in specific use, and the circuit connection relationship of each device is a simple series and parallel connection circuit, and there is no innovation point in the circuit connection part, and the person skilled in the art can easily realize it, which belongs to the prior art, and will not be described in detail.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A die casting machine corrosion-resistant sprue bush assembly comprising a sprue bush body (1), characterized in that: The top of the nozzle body (1) is provided with a connecting block (12), the bottom of the nozzle body (1) is provided with a guide pipe (11) at the same position as the connecting block (12), two material conveying openings (13) are formed in the connecting block (12), and the two material conveying openings (13) extend into the guide pipe (11) and are in communication with the adjacent material conveying openings (13). The guide pipe (11) is further provided with a guide rod (16), a material conveying cavity is formed between the outer wall of the guide rod (16) and the inner wall of the guide pipe (11), and a cleaning assembly (3) is arranged in the guide pipe (11) for cleaning the material conveying cavity.

2. A die casting machine corrosion resistant sprue bush assembly according to claim 1 wherein: The inner wall of the guide pipe (11) is symmetrically provided with two limiting sliding grooves (18), the cleaning assembly (3) is arranged in the two limiting sliding grooves (18), the cleaning assembly (3) comprises a rotating screw (31) and a fixed rod (32), the rotating screw (31) is rotatably connected to one of the limiting sliding grooves (18), the fixed rod (32) is fixedly connected to the other limiting sliding groove (18), and synchronous blocks (33) are arranged on the rotating screw (31) and the fixed rod (32).

3. A die casting machine corrosion resistant sprue bush assembly according to claim 2 wherein: The guide rod (16) is slidably connected to the guide rod (16), the outer wall of the guide rod (16) is in contact with the inner wall of the guide pipe (11), and two sliding holes (36) are formed in the guide rod (16). The top of the rotating screw (31) is further provided with a knob (35), the knob (35) is rotatably connected to the inner wall of the top of the guide pipe (11), and one side of the knob (35) is located on the outer surface of the guide pipe (11).

4. A die casting machine corrosion resistant sprue bush assembly according to claim 1 wherein: The outer surface of the guide pipe (11) is further provided with two cooling jackets (2), the bottom of the guide pipe (11) is provided with a lower limiting plate (15), and the cooling jackets (2) are arranged between the nozzle body (1) and the lower limiting plate (15).

5. A die casting machine corrosion resistant sprue bush assembly according to claim 4 wherein: The top of the guide pipe (11) is further provided with two cooling jackets (2), the bottom of the guide pipe (11) is provided with a lower limiting plate (15), and the cooling jackets (2) are arranged between the nozzle body (1) and the lower limiting plate (15).

6. A die casting machine corrosion resistant sprue bush assembly according to claim 1 wherein: The outer wall of the guide rod (16) and the inner wall of the guide pipe (11) are coated with a corrosion-resistant coating.

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