Mold cavity cleaning device for low-pressure casting machine

Abstract

The utility model relates to a mould cavity cleaning device for a low-pressure casting machine, which comprises a material receiving disc, the material receiving disc is arranged on the casting machine and can move under the driving of a driving mechanism, an air blowing mechanism is arranged at the bottom of the material receiving disc, and the air blowing mechanism structurally comprises an air delivery pipe and a control valve. The air conveying pipe is arranged on the bottom face of the material receiving disc along a set path, the air conveying pipe is provided with at least one inlet, the at least one inlet is connected with the output end of the control valve, the input end of the control valve is connected with an external air source, and a plurality of air outlet holes are formed in the pipe wall of the air conveying pipe. According to the utility model, the automatic cleaning of the mold cavity is realized, and the cleaning work efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a mold cavity cleaning device for a low-pressure casting machine. Background Art

[0002] During the low-pressure casting process, it is often necessary to clean the mold cavity to prevent debris from being present in the cavity and causing product quality problems. The existing method of cleaning the mold cavity is: after the mold is opened, the casting is taken away by the receiving tray, and the staff holds an air gun and reaches into the mold cavity, which is still in a high temperature state, to blow air to clean it. This method is not only unsafe, but also has a poor cleaning effect. And once you forget to clean it, it will directly lead to product scrapping. In addition, the mold temperature plays a vital role in casting production. In the summer, as the temperature in the production workshop continues to rise and the product continues to be produced, the temperature of the mold also gradually rises, resulting in the mold temperature being unable to remain within the process requirements, causing the casting to be scrapped. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a mold cavity cleaning device for a low-pressure casting machine, the purpose of which is to realize automatic cleaning of the mold cavity and improve cleaning efficiency and safety.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A mold cavity cleaning device for a low-pressure casting machine includes a receiving tray, which is arranged on the casting machine and can move under the drive of a driving mechanism. A blowing mechanism is provided at the bottom of the receiving tray. The structure of the blowing mechanism includes an air pipe and a control valve. The air pipe is arranged along a set path on the bottom surface of the receiving tray. The air pipe has at least one inlet, which is connected to the output end of the control valve. The input end of the control valve is connected to an external air source. A plurality of air outlet holes are provided on the wall of the air pipe.

[0006] Further technical solutions are:

[0007] The positions of the plurality of air outlet holes correspond to the parts of the cavity to be cleaned.

[0008] The plurality of air outlet holes are evenly distributed along the length direction of the air delivery pipe.

[0009] A glass rotor flowmeter is connected in series to the pipeline connecting the output end of the control valve and at least one inlet of the gas transmission pipe.

[0010] The gas transmission pipe is formed by splicing a number of unit pipes.

[0011] The mutually spliced unit pipes are connected at the splicing positions through a cross connecting pipe or a tee pipe.

[0012] The gas pipe is a copper pipe.

[0013] The driving mechanism includes a lifting driving member and a rotating driving member, which are respectively used to drive the lifting movement and the rotating movement of the receiving tray.

[0014] The beneficial effects of the utility model are as follows:

[0015] This new design is simple in structure and easy to operate. The blowing mechanism is integrated into the bottom of the receiving tray, eliminating the need for an additional drive mechanism. The existing drive mechanism of the receiving tray is utilized to achieve docking between the blowing mechanism and the mold cavity. The layout of the air pipe and the number and location of the air outlets can be designed according to actual needs to meet the cleaning requirements of different molds, greatly improving cleaning efficiency and safety.

[0016] The utility model can realize automatic air cooling of the mold, which helps to reduce the temperature of the lower mold in hot weather, meet process requirements and improve product quality.

[0017] This new control valve provides airflow control, limiting air blowing to only when the feed tray enters the mold cavity, avoiding wasteful air blowing caused by premature or prolonged blowing. The control valve, in conjunction with a glass rotor flowmeter, allows for adjustment of air flow and timing, meeting the cleaning needs of various mold types with a high degree of automation and wide applicability.

[0018] The blowing mechanism of the utility model is arranged at the bottom of the receiving tray, which can prevent accidents caused by random touching and avoid direct contact between high-temperature castings and the blowing mechanism when receiving materials, thereby improving service life.

[0019] Other features and advantages of the present invention will be described in the following description or will be understood through implementation of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model.

[0021] Figure 2 This is a structural schematic diagram of the air blowing mechanism located at the bottom of the receiving tray according to an embodiment of the present invention.

[0022] In the figure: 1. Upper mold; 2. Receiving tray; 3. Lower mold; 4. Lifting drive member; 5. Support plate; 6. Guide plate; 7. Base; 8. Blowing mechanism; 9. Rotating drive member; 10. Guide column; 81. Control valve; 82. Glass rotor flowmeter; 83. Cross connecting pipe; 84. Air supply pipe; 85. Air outlet. DETAILED DESCRIPTION

[0023] The specific implementation of the present utility model is described below with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown, the mold cavity cleaning device for a low-pressure casting machine of this embodiment includes a receiving tray 2, which is arranged on the casting machine and can move under the drive of a driving mechanism. A blowing mechanism 8 is provided at the bottom of the receiving tray 2. The structure of the blowing mechanism 8 includes an air pipe 84 and a control valve 81. The air pipe 84 is arranged along a set path on the bottom surface of the receiving tray 2. The air pipe 84 has at least one inlet, and at least one inlet is connected to the output end of the control valve 81. The input end of the control valve 81 is connected to an external air source, and a plurality of air outlet holes 85 are provided on the pipe wall of the air pipe 84.

[0025] As a specific embodiment, the mold includes an upper mold 1 and a lower mold 3, and a base 7 is provided at the bottom of the lower mold 3; the driving mechanism includes a lifting driving member 4 and a rotating driving member 9, which are respectively used to drive the receiving tray 2 to lift and rotate.

[0026] Specifically, the lifting drive member 4 can be a lifting cylinder, which is mounted on a guide column 10 via a mounting plate. The guide column 10 is mounted on a base 7. The guide column 10 is provided with a guide plate 6 that slides along it. The guide plate 6 is connected to the piston rod of the lifting drive member 4. The rotary drive member 9 can be a rotary motor and is mounted on the guide plate 6. The output shaft of the rotary drive member 9 is connected to one end of a support plate 5, and the support plate 5 is connected to the receiving tray 2. The rotation angle range of the receiving tray 2 is specifically 0° to 60°.

[0027] The working principle of this embodiment is as follows:

[0028] When in use, it is mainly used to clean the cavity surface of the lower mold 3. The drive mechanism adjusts the receiving tray 2 to the top of the lower mold 3, opens the control valve 81, and the external air flows through the control valve 81 into the air pipe 84, and then blows into the lower mold 3 from the air outlet 85, thereby cleaning the mold cavity and reducing the mold cavity temperature.

[0029] As a specific embodiment, the positions of the plurality of air outlet holes 85 correspond to the portion of the cavity to be cleaned, or the plurality of air outlet holes 85 are evenly distributed along the length of the air delivery pipe 84 .

[0030] The control valve 81 can be a solenoid airflow valve, and can be selected to control only on / off or flow rate, depending on the actual situation. When the control valve 81 is an on / off type, this embodiment further includes a glass rotor flowmeter 82 connected in series to the pipeline connecting the output end of the control valve 81 to the at least one inlet of the gas pipeline 84.

[0031] The valve at the inlet of the glass rotor flowmeter can adjust the gas flow rate, thereby controlling the strength of the purge gas flow.

[0032] The coordinated use of the control valve 81 and the glass rotor flowmeter 82 not only avoids the cost increase caused by the equipment being blown all the time, but also greatly improves the gas utilization rate.

[0033] As a specific embodiment, the gas delivery pipe 84 is formed by splicing a plurality of unit pipes, and the spliced unit pipes are connected at the splicing position through a cross connecting pipe 83 or a tee pipe.

[0034] As a preferred embodiment, the gas delivery pipe 84 is a copper pipe, which can be welded and fixed to the bottom surface of the receiving tray 2 to prevent the copper pipe from falling off.

[0035] The device of this embodiment outputs a stable airflow to the mold cavity through an air pipe, and is equipped with a control valve, or a control valve and a glass rotor flowmeter, to control the time and flow of the airflow, thereby avoiding the risk of manual incomplete blowing and leakage. Furthermore, there is no need for manual hands to reach into the mold cavity, which greatly improves safety. At the same time, during the production process, blowing can begin as soon as the receiving tray enters between the upper and lower molds, saving the waiting time required to manually remove the casting and adjust the mold posture before blowing. This helps to reduce the temperature of the mold cavity, ensuring that the mold temperature will not be too high even in hot weather, greatly reducing scrap caused by excessive temperature and improving production efficiency and yield rate.

[0036] Those skilled in the art will understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A mold cavity cleaning device for a low-pressure casting machine, comprising a receiving tray (2), wherein the receiving tray (2) is arranged on the casting machine and can move under the drive of a driving mechanism, and is characterized in that: The bottom of the receiving tray (2) is provided with an air blowing mechanism (8), the structure of the air blowing mechanism (8) includes an air delivery pipe (84) and a control valve (81), the air delivery pipe (84) is arranged along a set path on the bottom surface of the receiving tray (2), the air delivery pipe (84) has at least one inlet, the at least one inlet is connected to the output end of the control valve (81), the input end of the control valve (81) is connected to an external air source, and a plurality of air outlet holes (85) are provided on the wall of the air delivery pipe (84).

2. The mold cavity cleaning device for a low-pressure casting machine according to claim 1, characterized in that: The positions of the plurality of air outlet holes (85) correspond to the parts of the cavity to be cleaned.

3. The mold cavity cleaning device for a low-pressure casting machine according to claim 1, characterized in that: The plurality of air outlet holes (85) are evenly distributed along the length direction of the air delivery pipe (84).

4. The mold cavity cleaning device for a low-pressure casting machine according to claim 1, characterized in that: A glass rotor flowmeter (82) is serially connected to a pipeline connecting the output end of the control valve (81) and at least one inlet of the gas delivery pipe (84).

5. The mold cavity cleaning device for a low-pressure casting machine according to claim 1, characterized in that: The gas delivery pipe (84) is formed by splicing together a number of unit pipes.

6. The mold cavity cleaning device for a low-pressure casting machine according to claim 5, characterized in that: The mutually spliced unit pipes are communicated at the splicing positions via a cross connecting pipe (83) or a tee pipe.

7. The mold cavity cleaning device for a low-pressure casting machine according to claim 1, characterized in that: The gas delivery pipe (84) is a copper pipe.

8. The mold cavity cleaning device for a low-pressure casting machine according to claim 1, characterized in that: The driving mechanism comprises a lifting driving member (4) and a rotating driving member (9), which are respectively used to drive the receiving tray (2) to move upward and downward and to rotate.

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