Release agent liquid supplementing control device

Abstract

The utility model provides a release agent liquid supplementing control device, which comprises a liquid storage barrel, a liquid supplementing device, a liquid supplementing device, a liquid supplementing device and a liquid supplementing control device, and is characterized in that the liquid storage barrel is communicated with a mold working surface and is used for storing a release agent; the liquid supplementing box is used for supplementing the release agent for the liquid storage barrel; the liquid level measurer is mounted in the liquid storage barrel and is used for detecting the liquid level in the liquid storage barrel; the water pump is mounted in the liquid supplementing box, and an output pipeline of the water pump is communicated with the liquid storage barrel; the water pump and the liquid level measurer are respectively connected with the control box, and the control box controls the water pump to be opened or closed according to a liquid level signal fed back by the liquid level measurer. The release agent supplementing control device disclosed by the utility model can be used for automatically supplementing the release agent for the mold, so that the risk of liquid interruption is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid replenishment for a mold workbench, in particular to a mold release agent liquid replenishment control device. Background Art

[0002] Before casting, molds used in equipment such as die-casting machines, squeeze casting machines, and two-roll mills (rolling composite forming) require a release agent to facilitate demolding. This release agent acts as a functional material between the mold and the finished product, adhering to the mold without transferring to the part being processed, thus preventing it from interfering with painting or other secondary processing operations.

[0003] At present, when the molds of existing die-casting machines, extrusion casting machines and other equipment are casting, when the water-based release agent is dripped onto the working surface of the mold, a liquid storage barrel is used to store the liquid above the working surface of the mold, and then gravity is used to supply the liquid downward for application. When the release agent is used up, it is necessary to manually add the release agent liquid, which has a hysteresis and a risk of liquid interruption, and manual liquid addition has safety hazards and splashing waste. Moreover, if the liquid is not replenished in time after the release agent is used up, there will be no release agent applied to the working surface of the mold for lubrication, and the product quality will not meet the standards. At the same time, there is a risk of mold cracking, and the risk of loss is relatively high. In addition, if the liquid cannot be replenished in time during the production process, the working surface will not be coated with the release agent for lubrication. At this time, forcing the equipment to produce will affect equipment abnormalities, etc. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model proposes a release agent replenishing control device, which can automatically replenish the release agent for the mold to avoid the risk of liquid shortage.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] A release agent refill control device, comprising:

[0007] A liquid storage barrel, which is in communication with the mold working surface and is used to store the release agent;

[0008] A liquid replenishing tank, used to replenish the release agent to the liquid storage barrel;

[0009] A liquid level measuring device is installed in the liquid storage tank and is used to detect the liquid level in the liquid storage tank;

[0010] A water pump is installed in the liquid replenishing tank, and an output pipe of the water pump is connected to the liquid storage barrel;

[0011] The water pump and the liquid level measuring device are connected to the control box respectively. The control box controls the water pump to turn on or off according to the liquid level signal fed back by the liquid level measuring device.

[0012] In a preferred embodiment, a light column meter is further provided in the control box, the liquid level measuring device is electrically connected to the light column meter, and the light column meter controls the light column display height according to the liquid level signal fed back by the liquid level measuring device.

[0013] In a preferred embodiment, an AC contactor is further provided in the control box, the input end of the AC contactor is connected to the light bar meter, and the output end of the AC contactor is electrically connected to the water pump; the AC contactor controls the on and off of the AC contactor according to the height displayed by the light bar of the light bar meter.

[0014] In a preferred embodiment, when the height of the light beam in the light beam meter is lower than a preset lower limit, the light beam meter connects the AC contactor; when the height of the light beam in the light beam meter is higher than a preset upper limit, the light beam meter disconnects the AC contactor.

[0015] In a preferred embodiment, the liquid level measuring device is a liquid level transmitter.

[0016] In a preferred embodiment, a liquid outlet is provided at the bottom of the liquid storage barrel, and the liquid outlet is connected to the mold working surface through a drip tube; a water flow sensor is provided near the end of the drip tube.

[0017] In a preferred embodiment, it also includes an induction signal output device and a rolling mill PLC for controlling the operation of the mold workbench, the water flow sensor is connected to the induction signal output device, and the output end of the induction signal output device is electrically connected to the rolling mill PLC; the rolling mill PLC controls the operation of the mold workbench according to the water flow signal received by the induction signal output device.

[0018] In a preferred embodiment, when the water flow sensor cannot detect a water flow signal, the induction signal outputter outputs an alarm signal to the rolling mill PLC, and the rolling mill PLC closes the mold workbench according to the received alarm signal.

[0019] In a preferred embodiment, the water flow sensor is a non-contact pipeline water flow sensor.

[0020] In a preferred embodiment, the liquid storage tank is located above the center of gravity of the mold working surface.

[0021] Compared with the existing technology, the present invention has the following advantages: the release agent refill control device of the present invention includes a liquid storage barrel, a liquid refilling tank, a liquid level measuring device, a water pump and a control box, wherein the liquid level measuring device is provided in the liquid storage barrel for real-time detection of the liquid level height in the liquid storage barrel, and the water pump is provided in the liquid refilling tank and the output pipe of the water pump is connected to the liquid storage barrel. The control box can control the water pump to open or close according to the liquid level signal fed back by the liquid level measuring device, and replenish the release agent to the liquid storage barrel in time, avoiding the risk of liquid shortage. Compared with the manual replenishment method of release agent in the existing technology, the present invention can realize automatic replenishment of release agent, avoiding the risk of liquid shortage caused by manual delayed replenishment of release agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a structural diagram of one embodiment of the release agent refill control device of the present invention;

[0024] Figure 2 This is a control principle diagram of one embodiment of the release agent refill control device of the present invention;

[0025] Figure 3 This is a schematic diagram of the circuit principle of one embodiment of the release agent refill control device of the present invention.

[0026] Illustrations: 1. Water pump; 201. Liquid replenishing tank; 202. Liquid storage barrel; 3. Release agent; 4. Liquid level measuring device; 5. AC contactor; 6. Light column meter; 7. Control box; 8. Water flow sensor; 9. Mold working surface; 10. Induction signal output device; 11. Rolling mill PLC; 12. Drip pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] See also Figure 1-Figure 3 The present invention discloses a release agent refilling control device, comprising:

[0031] Liquid storage barrel, the liquid storage barrel 202 is connected to the mold working surface 9 and is used to store the release agent 3; wherein, Figure 1 As shown, the mold working surface 9 represents the outer surface of the mold;

[0032] The liquid replenishing tank 201 is used to replenish the release agent 3 for the liquid storage barrel;

[0033] A liquid level measuring device 4 is installed in the liquid storage barrel 202 and is used to detect the liquid level in the liquid storage barrel 202;

[0034] Water pump 1, the water pump 1 is installed in the liquid replenishing tank 201, and the output pipe of the water pump 1 is connected to the liquid storage barrel 202;

[0035] The control box 7 , the water pump 1 and the liquid level measuring device 4 are respectively connected to the control box 7 , and the control box 7 controls the water pump 1 to turn on or off according to the liquid level signal fed back by the liquid level measuring device 4 .

[0036] The control principle diagram of the release agent refill control device of this embodiment is as follows: Figure 2As shown, the liquid level measuring device 4 is used to detect the liquid level changes in the liquid storage barrel 202 in real time and feed back to the control box 7. The control box 7 controls the water pump 1 to open or close according to the fed-back liquid level height in the liquid storage barrel 202, so as to realize automatic replenishment of the demolding agent 3 and avoid the risk of liquid interruption due to the lag of manual replenishment.

[0037] In a preferred embodiment, the control box 7 is further provided with a light column meter 6, and the liquid level measuring device 4 is electrically connected to the light column meter 6. The light column meter 6 controls the height of the light column display according to the liquid level signal fed back by the liquid level measuring device 4. The light column meter 6 is an instrument that intuitively displays measurement data or signals in the form of a light column. After the liquid level measuring device 4 converts the detected liquid level into an electrical signal and inputs it into the light column meter 6, the light column meter 6 undergoes corresponding processing (such as signal amplification, filtering, A / D conversion, etc.) and drives the light column display component so that the height or length of the light column corresponds to the size of the input signal, thereby explicitly displaying the change in the liquid level in the liquid storage barrel 202, allowing maintenance personnel to promptly understand the liquid level in the liquid storage barrel 202. As for how the light column meter 6 amplifies, filters, A / D converts, and other processing of the received signal and then drives the light column display component, this belongs to the existing technology of the light column meter 6 and will not be described in detail in the embodiments of this application.

[0038] As a further preferred embodiment, the control box 7 further includes an AC contactor 5. The input end of the AC contactor 5 is connected to the light bar meter 6, and the output end of the AC contactor 5 is electrically connected to the water pump 1. The AC contactor 5 is controlled to turn on and off according to the height of the light bar displayed by the light bar meter 6. In this embodiment, the AC contactor 5 is used to control the water pump 1 to turn on or off. Specifically, when the coil in the AC contactor 5 is energized, electromagnetic attraction is generated, causing the armature to close, driving the contact system to operate, thereby connecting the circuit, energizing the water pump 1 and allowing it to pump the release agent 3 from the liquid replenishing tank 201 into the liquid storage barrel 202. When the coil in the AC contactor 5 is de-energized, the electromagnetic attraction disappears, the armature is released under the reaction force of the spring, and the contact system resets, thereby disconnecting the circuit and de-energizing the water pump 1, causing it to stop operating. In this embodiment, the operation of the water pump 1 can be controlled by directly linking the AC contactor 5 with the light bar meter 6, simplifying the control logic of the control box 7.

[0039] Specifically, during use, a preset lower limit value and a preset upper limit value of the light column height are pre-set in the light column meter 6. When the light column height in the light column meter 6 is lower than the preset lower limit value, the light column meter 6 connects to the AC contactor 5, that is, the coil in the AC contactor 5 is energized, so that the circuit of the water pump 1 is connected, allowing the water pump 1 to pump the release agent 3 in the liquid replenishing tank 201 into the liquid storage barrel 202. When the light column height in the light column meter 6 is higher than the preset upper limit value, the light column meter 6 disconnects the AC contactor 5, that is, the coil in the AC contactor 5 is disconnected, so that the circuit of the water pump 1 is disconnected, thereby stopping the water pump 1 from pumping the liquid into the liquid storage barrel 202. In this embodiment, through the circuit connection of the liquid level measuring device 4, the light column meter 6, the AC contactor 5 and the water pump 1, the automatic replenishment of the release agent 3 can be achieved without the help of programming or a single-chip microcomputer, which greatly simplifies the circuit structure.

[0040] Among them, the liquid level measuring device 4 is a liquid level sensor, such as a capacitive liquid level sensor, a pressure liquid level sensor, an ultrasonic liquid level sensor, a photoelectric liquid level sensor, etc., and the embodiments of the present application are not limited here; and in one preferred embodiment, the liquid level measuring device 4 is preferably a liquid level transmitter, so that the liquid level height can be converted into a liquid level signal for conversion, amplification and conversion into a standard signal output to the light column meter 6. Since the liquid level transmitter can not only detect but also process and transmit the signal, the light column meter 6 can directly drive the light column display component after receiving the standard signal, so that the height or length of the light column corresponds to the size of the input signal.

[0041] In addition, in this embodiment, the water pump 1 is preferably a submersible pump. When in use, the submersible pump is placed directly into the liquid replenishment tank 201, and after connecting the circuit (i.e., the submersible pump is electrically connected to the AC contactor 5) and the pipeline (i.e., the output pipeline of the submersible pump is connected to the liquid storage tank 202), it can be put into use without complicated installation. Furthermore, the submersible pump has a compact structure and, since ancillary facilities such as a pump room are not required, it saves space and costs.

[0042] Furthermore, in a preferred embodiment, a liquid outlet is provided at the bottom of the liquid storage barrel 202, and the liquid outlet is connected to the mold working surface 9 through a drip tube 12; a water flow sensor 8 is provided near the end of the drip tube 12. In this embodiment, by providing the water flow sensor 8 near the end of the drip tube 12, it is possible to detect in real time whether the release agent 3 flows into the mold working surface 9, thereby facilitating the control of the operation of the mold workbench according to the detection of the water flow sensor 8. That is, when the water flow sensor 8 detects that there is no water flowing in the drip tube 12, the mold workbench is closed in time to avoid the risk of the equipment still operating when there is no release agent 3 applied to the mold working surface 9, resulting in substandard product quality and even the risk of mold collapse.

[0043] Furthermore, the release agent refill control device also includes a sensing signal output device 10 and a mill PLC 11 for controlling the operation of the mold worktable. The water flow sensor 8 is connected to the sensing signal output device 10, and the output end of the sensing signal output device 10 is electrically connected to the mill PLC 11. The mill PLC 11 controls the operation of the mold worktable based on the water flow signal received by the sensing signal output device 10. In this embodiment, the sensing signal output device 10 converts the signal transmitted by the water flow sensor 8 into an electrical signal that can be received and processed by the mill PLC 11. This allows the mill PLC 11 to directly identify whether to urgently shut down the mold worktable based on the signal transmitted by the sensing signal output device 10, thereby preventing damage to the equipment or mold caused by forced production after the release agent 3 is depleted from the drip tube 12.

[0044] Specifically, when the water flow sensor detects no water flow signal, the sensing signal outputter 10 outputs an alarm signal, such as a high level or a low level, to the rolling mill PLC 11, and the rolling mill PLC 11 urgently shuts down the mold workbench according to the received alarm signal.

[0045] The circuit principle diagram of the release agent refilling control device of the present invention can be found in Figure 3 In this circuit, the light column meter 6 is provided with pins 7, 13, 16, 17, 18, 19, 22, 23, and 24. The liquid level measuring device 4 transmits the liquid level signal to the light column meter 6 through pins 13 and 7 of the light column meter 6. The light column meter 6 compares the received liquid level value with the preset lower limit value and preset upper limit value set in the light column meter 6. If the comparison result shows that the liquid level value is lower than the preset lower limit value, the pins 19 and 18 of the light column meter 6 will be connected, the AC contactor 5 will be attracted, and the water pump 1 will start; when the light column meter 6 detects that the liquid level is higher than the preset upper limit value through the liquid level measuring device 4, the pins 16 and 17 of the light column meter 6 will be connected, the intermediate relay KA1, pins 16 and 17 return to 0V, the intermediate relay coil KA1 is energized, and the normally closed point of the intermediate relay coil KA1 becomes normally open. At this time, the AC contactor KM1 coil is de-energized, and the water pump stops running. When the water flow sensor detects that there is no liquid flowing through the pipeline, the internal open point becomes a closed point, the relay KA2 is energized, the normally open contact of KA2 closes, and the alarm signal is sent to the main control cabinet. The rolling mill stops running and the alarm content is displayed.

[0046] In this embodiment, the liquid level measuring device 4 performs real-time liquid level detection so that the release agent 3 in the liquid storage barrel 202 can be replenished in time when the capacity is small, thereby establishing the basic condition for preventing liquid interruption; and the water flow sensor 8 detects the water flow of the drip tube 12, further locking the release agent 3 to effectively flow out to the working surface, thereby doubly preventing liquid interruption and realizing the interlocking function with the rolling mill PLC 11, thereby realizing interlocking control to prevent liquid interruption, effectively avoiding the interruption of the release agent 3 and the forced operation of the mold workbench after the interruption, causing equipment abnormality, and effectively reducing energy consumption and equipment maintenance losses.

[0047] The water flow sensor 8 is a non-contact pipe water flow sensor that can perform measurements without direct contact with the water flow. Therefore, the non-contact pipe water flow sensor can be installed on the outside of the drip tube 12, which is easy to install.

[0048] In this embodiment, the liquid storage barrel 202 is located above the center of gravity of the mold working surface 9, so that the release agent 3 can flow from the liquid storage barrel 202 into the mold working surface 9 under the action of gravity without the need for other electrical components such as a water pump.

[0049] To sum up, the demolding agent replenishment control device of this embodiment includes a liquid storage barrel, a liquid replenishment tank 201, a liquid level meter 4, a water pump 1 and a control box 7, wherein the liquid level meter 4 is arranged in the liquid storage barrel for real-time detection of the liquid level height in the liquid storage barrel, and the water pump 1 is arranged in the liquid replenishment tank 201 and the output pipe of the water pump 1 is connected to the liquid storage barrel 202. The control box 7 can control the water pump 1 to open or close according to the liquid level signal feedback from the liquid level meter 4, and replenish the demolding agent 3 for the liquid storage barrel in time, ensuring that there is a continuous demolding agent 3 in the liquid storage barrel 202 to effectively prevent flow interruption and solve the problem of manual replenishment of demolding agent, which can save labor costs and reduce the waste caused by manual rehydration, and can save labor and demolding agent 3 consumable material costs in a comprehensive manner.

[0050] Moreover, since the release agent 3 can be automatically controlled to flow continuously, the mold working surface 9 is ensured to be continuously lubricated, the risk of mold cracking is eliminated, and the mold cost loss is reduced.

[0051] In addition, a water flow sensor 8 for detecting whether the release agent 3 is flowing out can be added to the end of the drip tube 12. When the release agent 3 is cut off, the information is output to the rolling mill PLC 11. After receiving the signal, the rolling mill PLC 11 will shut down urgently to prevent equipment abnormalities caused by forced operation of the equipment after the flow is cut off, thereby reducing energy consumption and equipment maintenance losses.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A release agent refill control device, characterized in that: include: A liquid storage barrel, which is in communication with the mold working surface and is used to store the release agent; A liquid replenishing tank, used to replenish the release agent to the liquid storage barrel; A liquid level measuring device is installed in the liquid storage tank and is used to detect the liquid level in the liquid storage tank; A water pump is installed in the liquid replenishing tank, and an output pipe of the water pump is connected to the liquid storage barrel; The water pump and the liquid level measuring device are connected to the control box respectively. The control box controls the water pump to turn on or off according to the liquid level signal fed back by the liquid level measuring device.

2. The release agent refill control device according to claim 1, characterized in that: A light column meter is also provided in the control box. The liquid level measuring device is electrically connected to the light column meter. The light column meter controls the light column display height according to the liquid level signal fed back by the liquid level measuring device.

3. The release agent refill control device according to claim 2, characterized in that: An AC contactor is also provided in the control box, the input end of the AC contactor is connected to the light bar meter, and the output end of the AC contactor is electrically connected to the water pump; the AC contactor controls the on and off of the AC contactor according to the height displayed by the light bar of the light bar meter.

4. The release agent refill control device according to claim 3, characterized in that: The light bar meter is connected to the AC contactor circuit.

5. The release agent refill control device according to claim 1, characterized in that: The liquid level measuring device is a liquid level transmitter.

6. The release agent refill control device according to claim 1, characterized in that: A liquid outlet is provided at the bottom of the liquid storage barrel, and the liquid outlet is connected to the working surface of the mold through a dripping pipe; a water flow sensor is provided near the end of the dripping pipe.

7. The release agent refill control device according to claim 6, characterized in that: It also includes an induction signal output device and a rolling mill PLC for controlling the operation of the mold workbench. The water flow sensor is connected to the induction signal output device, and the output end of the induction signal output device is electrically connected to the rolling mill PLC; the rolling mill PLC controls the operation of the mold workbench according to the water flow signal received by the induction signal output device.

8. The release agent refill control device according to claim 6, characterized in that: The water flow sensor is a non-contact pipeline water flow sensor.

9. The release agent refill control device according to claim 1, characterized in that: The liquid storage barrel is located above the center of gravity of the mold working surface.

Images