Compressed air network pressure stabilizing system of sand mold 3D printer

Abstract

The utility model relates to the field of printer equipment, and particularly discloses a compressed air network pressure stabilizing system of a sand mold 3D printer, the output end of a main air compressor is communicated with a main air storage tank, and the main air storage tank is communicated with an air supply main pipeline through a main branch; the output end of the auxiliary air compressor is communicated with an auxiliary air storage tank, and the auxiliary air storage tank is communicated with the air supply main pipeline through an auxiliary branch; a main one-way electromagnetic valve is arranged on the main branch, and an auxiliary one-way electromagnetic valve is arranged on the auxiliary branch; the main air compressor, the auxiliary air compressor, the main one-way electromagnetic valve, the auxiliary one-way electromagnetic valve, the gas pressure sensor and the alarm are electrically connected with the pressure stabilizing controller. According to the system, main and standby switching is achieved, it is ensured that compressed air depends on the safety state of equipment, cost loss is avoided, meanwhile, fault alarm is achieved, it is ensured that faults are handled in time, the two air compressors with different powers are arranged, starting is conducted according to needs, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the field of printer equipment, in particular to a compressed air network voltage stabilizing system for a sand mold 3D printer. Background Art

[0002] Sand mold 3D printing equipment needs to adopt negative pressure mode to protect important parts of the equipment. Compressed air must be continuously supplied to keep the equipment in good condition. Sudden air outage will cause damage to the 3D print head, which will affect production progress and cause material loss at the least, or even cause damage to the print head of the printing equipment.

[0003] Currently, only one 160KW air compressor is usually configured to cover the production site, and there is no spare air compressor. There are problems such as occasional shutdowns, no spare machines during maintenance, and emergency gas outages, which in turn cause equipment damage and affect the progress of tasks. In addition, R&D tasks are characterized by urgency, suddenness, and dispersion, resulting in a low number of high-consumption demands for compressed air. However, a 160KW air compressor is equipped to run 24 hours a day to prepare for the compressed air supply for R&D tasks, which wastes energy. At the same time, the air compressor fails and shuts down, the gas network pressure drops, and the lack of effective intelligent alarms prevents information from being effectively transmitted, which in turn leads to the inability to handle the failure in a timely manner, resulting in an increase in the risk of loss. Summary of the invention

[0004] In order to solve the above problems, the utility model provides a compressed air network voltage stabilization system for a sand mold 3D printer, which realizes the main and standby switching, ensures the safe state of the compressed air dependent equipment, avoids cost losses, and realizes fault alarm to ensure timely handling of faults. Two air compressors with different powers are set and started as needed to save resources.

[0005] The technical solution of the utility model is a compressed air network pressure stabilization system for a sand mold 3D printer, comprising a main air compressor, an auxiliary air compressor, a main gas storage tank, an auxiliary gas storage tank, a main gas supply pipeline, an alarm, a gas pressure sensor for detecting the gas pressure in the main gas supply pipeline, and a pressure stabilization controller; wherein the power of the main air compressor is greater than that of the auxiliary air compressor;

[0006] The output end of the main air compressor is connected to the main air storage tank, which is connected to the main air supply pipeline through the main branch line; the output end of the auxiliary air compressor is connected to the auxiliary air storage tank, which is connected to the main air supply pipeline through the auxiliary branch line;

[0007] A main one-way solenoid valve is provided on the main branch line, and an auxiliary one-way solenoid valve is provided on the auxiliary branch line;

[0008] The main air compressor, the auxiliary air compressor, the main one-way solenoid valve, the auxiliary one-way solenoid valve, the gas pressure sensor and the alarm are electrically connected to the voltage stabilizing controller respectively.

[0009] In an optional embodiment, the main gas supply pipeline is connected to the detection pipeline, and the gas pressure sensor is arranged at the end of the detection pipeline.

[0010] In an optional implementation, the voltage stabilizing controller is electrically connected to the main air compressor via a first electronic switch.

[0011] In an optional implementation, the first electronic switch is a relay.

[0012] In an optional implementation, the voltage stabilizing controller is electrically connected to the main air compressor via a second electronic switch.

[0013] In an optional implementation, the second electronic switch is a relay.

[0014] In an optional implementation, the voltage regulator controller is electrically connected to the wireless communication chip.

[0015] In an optional implementation, the voltage regulator controller is a Siemens S7-1215C PLC.

[0016] In an optional embodiment, the main air compressor is a 160KW air compressor, and the auxiliary air compressor is a 15KW air compressor.

[0017] The compressed air network voltage stabilization system for a sand mold 3D printer provided in this embodiment has the following beneficial effects compared with the prior art: a high-power main air compressor and a low-power auxiliary air compressor are provided, and when one of the air compressors fails, the air compressor is switched to the other air compressor to achieve the main-standby switching, thereby ensuring the safe state of the compressed air-dependent equipment and avoiding cost losses; at the same time, an alarm is provided to realize fault alarm and ensure timely handling of the fault; the other two air compressors have different powers and can be started according to production needs to save resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of a compressed air network voltage stabilizing system of a sand mold 3D printer provided by an embodiment of the utility model.

[0020] In the figure, 1-pressure regulator controller, 2-alarm, 3-gas pressure sensor, 4-auxiliary branch, 5-detection pipeline, 6-auxiliary air compressor, 7-auxiliary gas storage tank, 8-auxiliary one-way solenoid valve, 9-gas supply main pipeline, 10-main air compressor, 11-main gas storage tank, 12-main branch, 13-main one-way solenoid valve, 14-equipment end. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following implementation modes.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0023] like Figure 1 As shown, the compressed air network pressure stabilization system of a sand mold 3D printer provided in this embodiment includes a main air compressor 10, an auxiliary air compressor 6, a main air storage tank 11, an auxiliary air storage tank 7, a main air supply pipeline 9, an alarm 2, a gas pressure sensor 3 for detecting the gas pressure in the main air supply pipeline 9, and a pressure stabilization controller 1.

[0024] In this embodiment, the power of the main air compressor 10 is greater than that of the auxiliary air compressor 6. For example, the main air compressor 10 is a 160KW air compressor, and the auxiliary air compressor 6 is a 15KW air compressor. The roles of the main and auxiliary air compressors can be adjusted according to the gas demand of the equipment, and resources can be rationally planned to achieve energy cost reduction.

[0025] The output end of the main air compressor is connected to the main air tank 11, and the main air tank 11 is connected to the main air supply pipeline 9 through the main branch 12; the output end of the auxiliary air compressor 6 is connected to the auxiliary air tank 7, and the auxiliary air tank 7 is connected to the main air supply pipeline 9 through the auxiliary branch 4. At the same time, a main one-way solenoid valve 13 is set on the main branch 12, and an auxiliary one-way solenoid valve 8 is set on the auxiliary branch 4. The main air compressor 10, the auxiliary air compressor 6, the main one-way solenoid valve 13, the auxiliary one-way solenoid valve 8, the gas pressure sensor 3, and the alarm 2 are electrically connected to the voltage stabilizing controller 1 respectively. Under normal conditions, the main air compressor 10 is started, the main one-way solenoid valve 13 is opened, and the main air compressor 10 supplies air. If the main air compressor 10 fails and the gas pressure in the main gas supply pipeline 9 is abnormal, the gas pressure sensor 3 transmits the detection information to the voltage regulator controller 1. After the voltage regulator controller 1 determines that the gas pressure is abnormal, it closes the main air compressor 10 and the main one-way solenoid valve 13, opens the auxiliary air compressor 6 and the auxiliary one-way solenoid valve 8, realizes the main and standby switching, and the auxiliary air compressor 6 supplies compressed air to ensure the normal operation of the printing equipment. At the same time, when the main air compressor 10 fails, the control alarm 2 will sound an alarm to remind the staff to deal with it in time to avoid further spread of the fault.

[0026] In this embodiment, the main gas supply pipeline 9 is connected to the detection pipeline 5, and the gas pressure sensor 3 is arranged at the end of the detection pipeline 5, which does not affect the normal gas supply and ensures the effectiveness of gas pressure detection.

[0027] The voltage regulator controller 1 of this embodiment is electrically connected to the main air compressor 10 and the auxiliary air compressor 6 through the first electronic switch and the second electronic switch respectively. The first electronic switch and the second electronic switch can be relays, and the operating state of the air compressor is controlled by controlling the on and off of the relays.

[0028] The voltage regulator controller 1 of this embodiment is electrically connected to a wireless communication chip to realize remote communication. When an air compressor fails, an alarm signal is remotely sent to a remote end to realize remote alarm. The voltage regulator controller 1 can use a Siemens S7-1215C PLC to collect the value of the gas pressure sensor 3 in real time. When the gas pressure is lower than the set value, a pulse signal is sent to control the start of the standby air compressor.

[0029] The above disclosure is only the preferred implementation mode of the utility model, but the utility model is not limited thereto. Any non-creative changes that can be thought of by technicians in this field, as well as several improvements and modifications made without departing from the principle of the utility model, should fall within the scope of protection of the utility model.

Claims

1. A compressed air network voltage stabilizing system for a sand mold 3D printer, characterized in that: It includes a main air compressor, an auxiliary air compressor, a main gas storage tank, an auxiliary gas storage tank, a main gas supply pipeline, an alarm, a gas pressure sensor for detecting the gas pressure in the main gas supply pipeline, and a pressure stabilizing controller; The power of the main air compressor is greater than that of the auxiliary air compressor; The output end of the main air compressor is connected to the main air storage tank, which is connected to the main air supply pipeline through the main branch line; the output end of the auxiliary air compressor is connected to the auxiliary air storage tank, which is connected to the main air supply pipeline through the auxiliary branch line; A main one-way solenoid valve is provided on the main branch line, and an auxiliary one-way solenoid valve is provided on the auxiliary branch line; The main air compressor, the auxiliary air compressor, the main one-way solenoid valve, the auxiliary one-way solenoid valve, the gas pressure sensor and the alarm are electrically connected to the voltage stabilizing controller respectively.

2. The compressed air network voltage stabilizing system of the sand mold 3D printer according to claim 1, characterized in that: The main gas supply pipeline is connected to the detection pipeline, and the gas pressure sensor is arranged at the end of the detection pipeline.

3. The compressed air network voltage stabilizing system of the sand mold 3D printer according to claim 1, characterized in that: The voltage stabilizing controller is electrically connected to the main air compressor via a first electronic switch.

4. The compressed air network pressure stabilizing system of the sand mold 3D printer according to claim 3, characterized in that: The first electronic switch is a relay.

5. The compressed air network pressure stabilizing system of the sand mold 3D printer according to claim 1, characterized in that: The voltage stabilizing controller is electrically connected to the main air compressor via a second electronic switch.

6. The compressed air network voltage stabilizing system for a sand mold 3D printer according to claim 5, characterized in that: The second electronic switch is a relay.

7. The compressed air network voltage stabilizing system for a sand mold 3D printer according to any one of claims 1 to 6, characterized in that: The voltage regulator controller is electrically connected to the wireless communication chip.

8. The compressed air network voltage stabilizing system for a sand mold 3D printer according to claim 7, characterized in that: The voltage regulator controller is Siemens S7-1215C PLC.

9. The compressed air network voltage stabilizing system for a sand mold 3D printer according to any one of claims 1 to 6, characterized in that: The main air compressor is a 160KW air compressor and the auxiliary air compressor is a 15KW air compressor.

Images