A control device for injection speed of an aluminum casting machine

Abstract

The utility model discloses a kind of control device of injection speed of casting aluminum machine, including injection channel, adjusting valve is provided on injection channel, auxiliary box is provided outside injection channel, auxiliary assembly is provided in auxiliary box, driving assembly is provided with outside auxiliary box by fixed component, knock component is provided between driving assembly and auxiliary box.The sweep pipe structure of adjusting valve lower side setting, after injection is completed, inert gas is passed, can be efficiently swept and removed to residual aluminium liquid in injection channel, avoid the channel blockage problem caused by residual aluminium liquid accumulation, ensure the continuity and reliability of subsequent injection operation, the collaborative design of driving assembly and knock component, both can assist aluminium liquid flow in injection process, improve filling efficiency, and residual aluminium liquid can be promoted to discharge after injection by continuous vibration, realize the double guarantee of channel internal cleanliness, reduce the production interruption risk caused by residual, improve equipment overall operation stability.

Description

Technical Field

[0001] This utility model relates to the field of aluminum casting machine injection technology, specifically to a control device for the injection speed of an aluminum casting machine. Background Technology

[0002] The injection channel of an aluminum casting machine is the critical path structure for molten aluminum to enter the mold cavity. The injection process refers to the technological steps in which molten aluminum is filled into the mold cavity by a pressure-driven device. Its core control parameters include injection pressure, aluminum temperature, and filling time. Injection speed control, by precisely adjusting the aluminum filling rate, can effectively avoid internal defects such as porosity and shrinkage cavities caused by excessively rapid filling, or surface defects such as cold shuts caused by excessively slow filling, thereby ensuring the density of the casting. Therefore, precise injection speed control is one of the key technical elements for achieving high-quality aluminum casting production.

[0003] However, although existing injection speed control devices have the function of adjusting the injection rate of molten aluminum in the injection channel, after the injection operation is completed, molten aluminum is prone to remain in the injection channel and inside the control device due to its own temperature characteristics and channel structure characteristics, making cleaning difficult. This residue problem not only directly affects the efficiency and quality of subsequent injection operations, but also long-term residue accumulation may cause channel blockage failure, ultimately leading to a decline in equipment performance and the risk of production interruption. Utility Model Content

[0004] The purpose of this invention is to provide a control device for the injection speed of an aluminum casting machine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a control device for the injection speed of an aluminum casting machine, comprising an injection channel, an adjusting valve provided on the injection channel, an auxiliary box provided outside the injection channel, an auxiliary component provided inside the auxiliary box, a driving component provided outside the auxiliary box through a fixing component, and a striking component provided between the driving component and the auxiliary box.

[0006] Preferably, in order to purge the interior after injection and prevent molten aluminum from remaining in the injection channel, a purge pipe is provided in the injection channel below the regulating valve.

[0007] Preferably, in order to heat the injection channel during the injection process and prevent the aluminum liquid from condensing due to low temperature, the auxiliary component includes a cavity opened in the auxiliary box, heating rings are equidistantly arranged in the cavity, the heating rings are equidistantly sleeved on the outside of the injection channel, and heat insulation cotton is also provided in the cavity.

[0008] Preferably, a connecting flange is also provided under the injection channel to facilitate connection and assembly with the injection head and to facilitate injection processing.

[0009] Preferably, in order to ensure the stability of the drive device during operation, the fixing component includes a fixing seat disposed at the top of the side wall of the auxiliary box, and a bearing seat disposed at the bottom of the side wall of the auxiliary box.

[0010] Preferably, in order to facilitate the reciprocating movement of the striking column within the sleeve to vibrate and strike the auxiliary box, assisting in injection, and to prevent aluminum residue after injection, the drive assembly includes a motor installed in a fixed base, a crankshaft fixedly installed at the motor output end, a collar sleeved on the outside of the crankshaft, and the bottom end of the crankshaft connected to a bearing housing.

[0011] Preferably, in order to vibrate and tap the auxiliary box to assist injection and avoid aluminum residue after injection, the tapping assembly includes a rotating part connected to the collar, a tapping post at the end of the rotating part, a rubber pad at the end of the tapping post away from the rotating part, a sleeve on the side wall of the auxiliary box, and a sliding cavity matching the tapping post inside the sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) The purge pipe structure below the regulating valve can be introduced with inert gas after injection to efficiently purge and remove residual aluminum liquid in the injection channel, avoid channel blockage caused by aluminum liquid residue accumulation, ensure the continuity and reliability of subsequent injection operations, extend the service life of the equipment, and the collaborative design of the drive component and the hammering component can drive the crankshaft of the motor to drive the hammering column to vibrate back and forth. This can not only assist the flow of aluminum liquid and improve the filling efficiency during the injection process, but also promote the discharge of residual aluminum liquid through continuous vibration after injection, thus achieving dual protection of the cleanliness inside the channel, reducing the risk of production interruption caused by residue, and improving the overall operational stability of the equipment. (2) An auxiliary component consisting of an external heating ring and insulation cotton in the injection channel can maintain the stable temperature of the aluminum liquid in the channel, effectively prevent the aluminum liquid from condensing due to temperature drop, ensure the fluidity and filling uniformity of the aluminum liquid during the injection process, and reduce the risk of poor flow or casting defects caused by condensation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a control device for the injection speed of an aluminum casting machine proposed in this utility model; Figure 2 This is a schematic diagram of the structure between the fixing component and the striking component in a control device for the injection speed of an aluminum casting machine proposed in this utility model; Figure 3 This is a partial structural diagram of the drive component and the striking component in a control device for the injection speed of an aluminum casting machine proposed in this utility model. Figure 4 This is a partial structural diagram of the auxiliary box in a control device for the injection speed of an aluminum casting machine proposed in this utility model.

[0014] In the diagram: 11. Injection channel; 12. Auxiliary box; 13. Connecting flange; 14. Regulating valve; 15. Purge pipe; 21. Fixed seat; 22. Bearing seat; 23. Motor; 24. Crankshaft; 25. Collar; 31. Rotating component; 32. Sleeve; 33. Sliding cavity; 34. Striking column; 35. Rubber pad; 41. Cavity; 42. Insulation cotton; 43. Heating ring. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-4 This utility model provides an embodiment of a device for controlling the injection speed of an aluminum casting machine, including an injection channel 11 for injecting and flowing molten aluminum into the aluminum casting machine. An adjusting valve 14 is installed on the injection channel 11. This valve can primarily be a proportional valve, such as an inlet pressure / flow dual proportional valve, combined with a nitrogen accumulator. The hydraulic oil flow is controlled by a servo valve to achieve rapid response of the injection speed. At high speeds, the accumulator releases high-pressure oil to meet instantaneous high-flow requirements; at low speeds, it switches to servo motor 23 to drive the injection, reducing energy consumption and achieving control and adjustment of the injection speed. This is a relatively mature technology and will not be elaborated upon here. A connecting flange 13 is also provided below the injection channel 11, which can be connected to the injection head for convenient subsequent injection processing. Other connection and fixing methods can also be used for easy disassembly and replacement.

[0017] Please see Figures 1-4To facilitate flow during injection and prevent aluminum molten material from solidifying and remaining after injection, which could eventually cause blockage and affect subsequent injections, a purge pipe 15 is installed in the injection channel 11 below the regulating valve 14. The purge pipe 15 can be connected to a blower or compressed air pump. After injection, inert gas is introduced into the injection channel 11 through the purge pipe 15 to facilitate the blowing out and collection of any residual aluminum molten material, preventing residue buildup. An auxiliary box 12 is installed outside the injection channel 11, containing auxiliary components. 2. An externally fixed drive assembly is provided, and a striking assembly is provided between the drive assembly and the auxiliary box 12. The auxiliary assembly includes a cavity 41 opened within the auxiliary box 12. Heating rings 43 are equidistantly arranged within the cavity 41. Heating can be achieved by resistance heating or other mature technologies, which will not be elaborated here. The heating rings 43 are equidistantly sleeved on the outside of the injection channel 11. Insulation cotton 42 is also provided within the cavity 41 to reduce heat exchange with the outside environment. This allows for heat treatment of the injection channel 11 during injection delivery. Heating protection prevents aluminum liquid from condensing due to low temperature, avoids residue, and does not affect injection delivery. The fixing component includes a fixing seat 21 set at the top of the side wall of the auxiliary box 12, and a bearing seat 22 set at the bottom of the side wall of the auxiliary box 12 to ensure the stability of the motor 23 and crankshaft 24 during operation. The drive component includes a motor 23 set in the fixing seat 21. The output end of the motor 23 is fixedly mounted on the crankshaft 24 through a coupling. A collar 25 is sleeved on the outside of the crankshaft 24. The bottom end of the crankshaft 24 is connected to the bearing seat 22. The striking component includes components connected to the collar 25. The rotating component 31 has a striking post 34 at its end, and a rubber pad 35 at the end of the striking post 34 away from the rotating component 31. The auxiliary box 12 has a sleeve 32 on its side wall, and a sliding cavity 33 matching the striking post 34 is opened in the sleeve 32. The motor 23 drives the crankshaft 24 to rotate, and in conjunction with the collar 25 and the rotating component 31, the striking post 34 can slide back and forth in the sliding cavity 33 of the sleeve 32 to vibrate and strike the auxiliary box 12, thereby assisting the flow of aluminum liquid in the injection channel 11. The striking continues after the injection is completed to avoid residue.

[0018] Working Principle: In use, the injection speed is adjusted by regulating valve 14. The injection head is connected to the connecting flange 13, and then the molten aluminum is injected and transported through the injection channel. During the injection process, the heating ring 43 in the cavity 41 works to ensure that the molten aluminum does not condense due to low temperature, thus ensuring the injection effect and avoiding residue. At the same time, the motor 23 works, driving the crankshaft 24 to rotate. In conjunction with the collar 25 and the rotating part 31, the striking block 34 can slide back and forth in the sliding cavity 33 of the sleeve 32, vibrating and striking the auxiliary box 12, thereby assisting the flow of molten aluminum in the injection channel 11. After the injection is completed, inert gas is introduced through the purge pipe 15 to purge the inside of the injection channel 11. At the same time, the striking block continues to strike, which can prevent molten aluminum from remaining in the injection channel 11, ensuring internal cleanliness, avoiding residue, and not affecting the next injection.

[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A control device for the injection speed of an aluminum casting machine, comprising an injection channel (11), wherein a regulating valve (14) is provided on the injection channel (11), characterized in that: An auxiliary box (12) is provided outside the injection channel (11), and an auxiliary component is provided inside the auxiliary box (12). A driving component is provided outside the auxiliary box (12) through a fixing component, and a knocking component is provided between the driving component and the auxiliary box (12).

2. The control device for injection speed of an aluminum casting machine according to claim 1, characterized in that: The injection channel (11) is located below the regulating valve (14) and is equipped with a purge tube (15).

3. The control device for injection speed of an aluminum casting machine according to claim 2, characterized in that: The auxiliary component includes a cavity (41) opened in the auxiliary box (12), heating rings (43) are equidistantly arranged in the cavity (41), the heating rings (43) are equidistantly sleeved outside the injection channel (11), and heat insulation cotton (42) is also provided in the cavity (41).

4. The control device for injection speed of an aluminum casting machine according to claim 3, characterized in that: A connecting flange (13) is also provided below the injection channel (11).

5. The control device for injection speed of an aluminum casting machine according to claim 4, characterized in that: The fixing component includes a fixing seat (21) disposed at the top of the side wall of the auxiliary box (12), and a bearing seat (22) disposed at the bottom of the side wall of the auxiliary box (12).

6. The control device for injection speed of an aluminum casting machine according to claim 5, characterized in that: The drive assembly includes a motor (23) installed in a fixed base (21), a crankshaft (24) fixedly installed at the output end of the motor (23), a collar (25) sleeved on the outside of the crankshaft (24), and the bottom end of the crankshaft (24) connected to the bearing seat (22).

7. The control device for injection speed of an aluminum casting machine according to claim 6, characterized in that: The striking assembly includes a rotating part (31) connected to the collar (25), a striking post (34) is provided at the end of the rotating part (31), a rubber pad (35) is provided at the end of the striking post (34) away from the rotating part (31), and a sleeve (32) is provided on the side wall of the auxiliary box (12), and a sliding cavity (33) matching the striking post (34) is provided inside the sleeve (32).

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