A hot chamber die casting apparatus

Abstract

The utility model discloses a hot chamber die casting device relates to hot chamber die casting technical field, including die casting mechanism, the side surface of die casting mechanism is installed with support frame, the upper portion of support frame is installed with the unloading assembly of automatic taking out casting, the unloading assembly includes the electric slide rail of installing on the upper portion of support frame, the output of electric slide rail is slidably installed with the connecting block, the lateral wall of connecting block is rotatably installed with the extension bar, the free end of extension bar is installed with the clamping piece of clamping casting, the upper portion of connecting block is installed with the air pipe of conveying airflow, the output of air pipe is installed with the gas box of storing airflow, the top of gas box evenly distributes with several groups of the spray head for spraying airflow and assisting casting stripping, cooperate between each component of unloading assembly, not only greatly promote the efficiency of taking out, more through the full automation process, avoid the direct contact of operating personnel and high temperature casting, fundamentally guarantee the production safety.

Description

Technical Field

[0001] This utility model relates to the field of hot chamber die casting technology, specifically a hot chamber die casting device. Background Technology

[0002] Hot chamber die casting equipment is a highly efficient and automated device that immerses the injection chamber in the molten metal in a holding furnace and uses an injection mechanism to force the metal into a mold to form the shape. It is suitable for the mass production of small precision parts made of low-melting-point metals such as zinc, lead, and tin. It features short production cycles and a high degree of automation and is commonly found in the toy, electronics, and hardware industries.

[0003] In most existing hot chamber die casting equipment, the castings need to be manually removed after die casting. The pace of manual removal is difficult to keep up with the die casting frequency of the equipment, resulting in a slow production cycle and a reduction in overall capacity. At the same time, the castings are at a high temperature immediately after demolding, which can easily cause injury to the operators. Therefore, a new hot chamber die casting equipment is needed. Utility Model Content

[0004] The purpose of this invention is to provide a hot chamber die casting device that automatically removes castings through a set unloading component, thereby avoiding manual removal of castings by operators and solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hot chamber die casting apparatus includes a die casting mechanism, a support frame is mounted on the side of the die casting mechanism, and an unloading assembly for automatically removing castings is mounted on the upper part of the support frame.

[0007] The unloading assembly includes an electric slide rail mounted on the upper part of the support frame. A connecting block is slidably mounted on the output end of the electric slide rail. An extension rod is rotatably mounted on the side wall of the connecting block. A clamping member for clamping the casting is mounted on the free end of the extension rod.

[0008] The upper part of the connecting block is equipped with an air pipe for conveying airflow, and the output end of the air pipe is equipped with an air box for storing airflow. Several sets of nozzles for spraying airflow to assist in the demolding of castings are evenly distributed on the top of the air box.

[0009] Preferably, the side wall of the connecting block is provided with an installation groove, and a rotary cylinder is embedded in the installation groove.

[0010] Preferably, the output end of the rotary cylinder is mounted on a fixing plate on the side of the connecting block, and the outer wall of the extension rod is connected to the top of the fixing plate.

[0011] Preferably, the clamping member includes an L-shaped plate connected to one end of the extension rod, and two sets of clamping plates for clamping the casting are symmetrically rotated on the upper part of the L-shaped plate, and high-temperature resistant anti-slip pads are installed on the opposite surfaces of the two sets of clamping plates.

[0012] Preferably, an electric push rod is embedded at one end of the extension rod, and a rotating component is installed at the output end of the electric push rod through the middle of the L-shaped plate. Both sets of clamping plates are movably connected to the rotating component through hinges.

[0013] Preferably, a fixing block for fixing the air pipe is installed on the top of the connecting block, and the input end of the air pipe is connected to an external air source device.

[0014] Preferably, a conveyor frame for conveying castings is installed on the side of the die-casting mechanism, and the feed end of the conveyor frame is located below the movement trajectory of the unloading assembly.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] After the die-casting mechanism completes the die casting, the unloading assembly is activated: the electric slide rail drives the connecting block and its connected extension rod to move synchronously towards the mold. When the front end of the extension rod approaches the casting, the nozzle on the air box sprays high-pressure airflow to assist the die-casting mechanism in pushing the casting out. Subsequently, the clamping component at the free end of the extension rod precisely clamps the casting and removes it from the mold cavity under the reverse drive of the electric slide rail. Through the coordination between the various components of the unloading assembly, not only is the part removal efficiency greatly improved, but the fully automated process also avoids direct contact between operators and high-temperature castings, fundamentally ensuring production safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the unloading assembly structure of this utility model;

[0019] Figure 3 This is a disassembled schematic diagram of the rotary cylinder mounting structure of this utility model;

[0020] Figure 4 This is a schematic diagram showing the disassembled structure of the clamping component of this utility model.

[0021] In the diagram: 1. Die-casting mechanism; 2. Support frame; 3. Unloading assembly; 31. Electric slide rail; 32. Connecting block; 33. Rotary cylinder; 34. Fixing plate; 35. Extension rod; 36. Clamping component; 361. L-shaped plate; 362. Clamping plate; 363. Anti-slip mat; 364. Electric push rod; 365. Rotating component; 366. Hinge component; 37. Air pipe; 38. Air box; 39. Nozzle; 4. Fixing block; 5. Conveying frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides: a hot chamber die-casting device, such as... Figures 1-4 As shown, the device includes a die-casting mechanism 1, a support frame 2 mounted on the side of the die-casting mechanism 1, and an unloading assembly 3 for automatically removing castings mounted on the upper part of the support frame 2. The die-casting mechanism 1 is the core forming component of the hot chamber die-casting device, used to complete the injection, pressure holding, and casting cooling and forming of molten metal; the support frame 2 is fixedly installed on the side of the die-casting mechanism 1, providing a stable mounting base and height support for the unloading assembly 3, ensuring that the movement trajectory of the unloading assembly 3 is precisely aligned with the mold parting surface of the die-casting mechanism 1.

[0024] The unloading assembly 3 includes an electric slide rail 31 mounted on the upper part of the support frame 2. A connecting block 32 is slidably mounted on the output end of the electric slide rail 31. An extension rod 35 is rotatably mounted on the side wall of the connecting block 32. A clamping member 36 for clamping the casting is mounted on the free end of the extension rod 35. The electric slide rail 31, as a linear motion drive component, is controlled by a servo motor and can precisely adjust its movement speed and position to ensure that the connecting block 32 moves closer to or further away from the mold along a set trajectory. The connecting block 32 is used to support the weight of the extension rod 35 and the clamping member 36. The rotatable connection structure of its side wall allows the extension rod 35 to swing within a certain angle range, facilitating the placement of the removed casting onto the conveyor frame 5. The clamping member 36 is mounted on the free end of the extension rod 35 and fixes the casting by mechanical clamping force. When the electric slide rail 31 drives the connecting block 32 to move, the extension rod 35 moves synchronously with the connecting block 32. After reaching the part removal position, the extension rod 35 accurately aligns with the casting through the clamping member 36 to clamp it. Then, the electric slide rail 31 drives the casting to move to the outside of the die casting mechanism 1 to realize the unloading of the casting.

[0025] The electric slide rail 31 can be driven by a servo motor, with a maximum speed of 0.6 m / s and a maximum acceleration of 15 m / s². The servo motor drive ensures precise position control, allowing the connecting block 32 to accurately stop at the mold part removal position and the unloading position above the conveyor frame 5. The relatively high speed of 0.6 m / s can effectively shorten the unloading cycle and improve overall production efficiency while ensuring stable operation.

[0026] An air pipe 37 for conveying airflow is installed on the upper part of the connecting block 32. An air box 38 for storing airflow is installed at the output end of the air pipe 37. Several sets of nozzles 39 for spraying airflow to assist in the demolding of the casting are evenly distributed on the top of the air box 38. The air pipe 37 delivers compressed air from an external air source to the air box 38. The air box 38 serves to temporarily store airflow and evenly distribute pressure, ensuring that the multiple sets of nozzles 39 spray air at a stable pressure. The nozzles 39 are evenly distributed on the top of the air box 38, and the spray direction is consistent with the demolding direction of the casting. When the connecting block 32 moves the air box 38 above the mold, the compressed air enters the air box 38 through the air pipe 37 and forms a high-speed airflow jet through the nozzles 39. This jet directly acts on the mating surface between the casting and the mold, using aerodynamic force to break the thermal adhesion and vacuum adsorption between the two, thus loosening the casting.

[0027] Preferably, the side wall of the connecting block 32 is provided with an installation groove, and a rotary cylinder 33 is embedded in the installation groove. By rotating the rotary cylinder 33, the extension rod 35 can drive the clamping part 36 to adjust its position. During unloading, it rotates to the horizontal direction to put the casting into the conveyor frame 5, which solves the problem that the fixed extension rod cannot adapt to multi-angle picking and improves the versatility of the unloading assembly 3 for different mold structures.

[0028] The rotary cylinder 33 can be a cylinder with a swing angle of up to 180°, a buffer angle of 33°, and a working pressure range of 0.3Mpa-0.8Mpa. The 180° swing angle is sufficient to allow the extension rod 35 to flexibly switch the clamping part 36 between the vertical pick-up position and the horizontal unloading position, meeting the multi-angle requirements for removing castings from the mold and placing them on the conveyor frame 5. The appropriate buffer angle can avoid impact caused by excessive speed during rotation, protect the equipment parts from damage, ensure that the entire unloading process is smooth and reliable, and improve the versatility of the unloading assembly 3 for different mold structures and working scenarios.

[0029] Furthermore, a fixing plate 34 is mounted on the side of the connecting block 32 at the output end of the rotary cylinder 33, and the outer wall of the extension rod 35 is connected to the top of the fixing plate 34. The fixing plate 34 is fixedly installed at the output end of the rotary cylinder 33 and rotates synchronously with the cylinder. Its top is rigidly connected to the outer wall of the extension rod 35, forming a stable force transmission structure. The rotary cylinder 33 drives the fixing plate 34 to rotate, which in turn drives the extension rod 35 and the clamping member 36 to rotate synchronously, ensuring that the clamping member 36 maintains the optimal posture during the picking, transferring, and unloading processes.

[0030] Furthermore, the clamping component 36 includes an L-shaped plate 361 connected to one end of the extension rod 35. Two sets of clamping plates 362 for holding the casting are symmetrically rotatably mounted on the upper part of the L-shaped plate 361. High-temperature resistant anti-slip pads 363 are installed on the opposite surfaces of both sets of clamping plates 362. One end of the L-shaped plate 361 is fixedly connected to the extension rod 35, and the support rod on its surface provides mounting points for the clamping plates 362. The clamping plates 362 are symmetrically hinged to the upper part of the L-shaped plate 361 and can open and close around the hinge axis. The anti-slip pads 363 on their inner sides are made of high-temperature resistant silicone rubber, and the textured surface design increases friction to prevent the high-temperature casting from slipping. When the clamping component 36 approaches the casting, the clamping plates 362 close under the action of an electric push rod 364, and the anti-slip pads 363 adhere to the surface of the casting, using friction and clamping force to fix the casting.

[0031] It is worth noting that an electric push rod 364 is embedded at one end of the extension rod 35. The output end of the electric push rod 364 passes through the middle of the L-shaped plate 361 and is fitted with a rotating component 365. Both sets of clamping plates 362 are movably connected to the rotating component 365 via hinges 366. The electric push rod 364 serves as the driving source for the clamping plates 362, converting the rotational motion of the motor into linear thrust. The rotating component 365 is fixedly connected to the output end of the electric push rod 364, and its two sides are connected to the clamping plates 362 via hinges 366, forming a linkage transmission structure. When the electric push rod 364 extends, it pushes the rotating component 365 forward, which in turn drives the two sets of clamping plates 362 to open synchronously around the hinge axis of the L-shaped plate 361 via the hinges 366. When the electric push rod 364 retracts, the rotating component 365 moves backward, and the clamping plates 362 close to clamp the casting.

[0032] The electric actuator 364 can be equipped with a speed range of 4-48 mm / s and a maximum thrust of 3000 N. The speed of 4-48 mm / s can be adjusted according to the specific characteristics of the casting, ensuring rapid clamping while preventing damage to the casting due to excessive speed. The maximum thrust of 3000 N is sufficient to handle high-temperature castings of different sizes and weights, ensuring that the clamping plate 362 can tightly hold the casting and prevent slippage.

[0033] Specifically, a fixing block 4 for fixing the air pipe 37 is installed on the top of the connecting block 32, and the input end of the air pipe 37 is connected to an external air source device. The fixing block 4 is used to constrain the position of the air pipe 37 to prevent it from loosening due to shaking when the electric slide rail 31 moves, or to prevent the pipe from being worn. The input end of the air pipe 37 is connected to an external air source through a quick connector to ensure a stable airflow supply.

[0034] More specifically, a conveyor frame 5 for conveying castings is installed on the side of the die-casting mechanism 1. The feed end of the conveyor frame 5 is located below the movement trajectory of the unloading assembly 3. The feed end of the conveyor frame 5 is aligned with the unloading position of the unloading assembly 3, and the discharge end is connected to the subsequent process. When the clamping member 36 grabs the casting and moves in the opposite direction with the electric slide rail 31 to above the conveyor frame 5, the clamping plate 362 opens to release the casting. Under the action of gravity, the casting slides down the conveyor frame 5 to the next station, avoiding the manual handling of the casting, further improving production efficiency, and eliminating the safety hazards of operators coming into contact with high-temperature castings.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot-chamber die casting apparatus, characterized by: It includes a die-casting mechanism (1), a support frame (2) is installed on the side of the die-casting mechanism (1), and an unloading assembly (3) for automatically removing castings is installed on the upper part of the support frame (2). The unloading assembly (3) includes an electric slide rail (31) installed on the upper part of the support frame (2). A connecting block (32) is slidably installed at the output end of the electric slide rail (31). An extension rod (35) is rotatably installed on the side wall of the connecting block (32). A clamping member (36) for clamping the casting is installed at the free end of the extension rod (35). The upper part of the connecting block (32) is equipped with an air pipe (37) for conveying airflow. The output end of the air pipe (37) is equipped with an air box (38) for storing airflow. The top of the air box (38) is evenly distributed with several sets of nozzles (39) for spraying airflow to assist in the demolding of castings.

2. The hot chamber die-casting apparatus according to claim 1, characterized in that: The side wall of the connecting block (32) is provided with an installation groove, and a rotary cylinder (33) is embedded in the installation groove.

3. The hot chamber die-casting apparatus according to claim 2, characterized in that: The output end of the rotary cylinder (33) is mounted on a fixing plate (34) on the side of the connecting block (32), and the outer wall of the extension rod (35) is connected to the top of the fixing plate (34).

4. The hot chamber die-casting apparatus according to claim 1, characterized in that: The clamping member (36) includes an L-shaped plate (361) connected to one end of the extension rod (35). Two sets of clamping plates (362) for clamping the casting are symmetrically rotated on the upper part of the L-shaped plate (361). High-temperature resistant anti-slip pads (363) are installed on the opposite surfaces of the two sets of clamping plates (362).

5. The hot chamber die-casting apparatus according to claim 4, characterized in that: An electric push rod (364) is embedded at one end of the extension rod (35). The output end of the electric push rod (364) passes through the middle of the L-shaped plate (361) and is equipped with a rotating component (365). Both sets of clamping plates (362) are movably connected to the rotating component (365) through a hinge (366).

6. The hot chamber die-casting apparatus according to claim 1, characterized in that: The top of the connecting block (32) is fitted with a fixing block (4) for fixing the air pipe (37), and the input end of the air pipe (37) is connected to an external air source device.

7. The hot chamber die-casting apparatus according to claim 1, characterized in that: The die-casting mechanism (1) is equipped with a conveyor frame (5) for conveying castings on its side, and the feed end of the conveyor frame (5) is located below the movement trajectory of the unloading assembly (3).

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