Built-in discharging device of vacuum pouring box

Abstract

The utility model discloses a built-in discharging device of a vacuum pouring box, which comprises a liquid storage tank arranged in the vacuum pouring box and provided with a ventilation pipe, a feed port for receiving feed liquid of a glue gun, and a liquid discharging pipe for discharging the feed liquid; the air pressure control assembly comprises an electromagnetic valve set and a pressure switch which are connected with the ventilation pipe, the electromagnetic valve set comprises a vacuum connector, an atmosphere connector and a high-pressure connector, the vacuum connector is communicated with the interior of the vacuum pouring box through the vacuum pipe, the atmosphere connector is communicated with the atmosphere, and the high-pressure connector is communicated with compressed air. And the electromagnetic valve group controls the vacuum interface, the atmosphere interface and the high-pressure interface to be respectively communicated with the ventilation pipe. According to the discharging device, glue gun waste in the vacuum pouring box can be automatically discharged on line, manual operation is not needed, the whole vacuum pouring box does not need to be subjected to vacuum breaking and vacuum pumping again, and the labor cost, the operation waiting time cost and the energy cost are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vacuum pouring, in particular to a built-in discharging device of vacuum pouring box. BACKGROUND

[0002] In the field of vacuum insulation glue pouring, the automatic disc feeding line, vacuum pouring box and disc feeding line are usually used to realize the automatic pouring of products through positioning. However, when the current process is abnormal and the time interval of product pouring into the pouring box is too long, the insulation glue mixture begins to gel and solidify, or the quality of the insulation glue mixture is abnormal due to other reasons, the mixture needs to be discharged from the glue gun in the vacuum pouring box in time to avoid pouring into the product and affecting the product quality, causing greater loss.

[0003] Currently, to discharge the waste in the glue gun, the automatic pouring rhythm needs to be paused, the vacuum in the vacuum pouring box is manually broken, the receiving box is manually placed inside the pouring box, the receiving box is manually taken out and the waste liquid is poured out, and the pouring box is re-evacuated. The above-mentioned waste discharge process has the following disadvantages:

[0004] 1. The waste discharge alarm needs to be responded in time by manual operation, otherwise the equipment will be shut down, which requires additional waiting time cost and labor cost;

[0005] 2. The manual receiving of the waste liquid takes a long time to break the vacuum of the pouring box, place the receiving box and align the position of the glue gun, and re-evacuate the whole pouring box, which seriously affects the production capacity of the equipment;

[0006] 3. After manual receiving, the pouring box needs to be re-evacuated, which requires a certain energy cost and is not environmentally friendly;

[0007] 4. During the manual placement, movement and pouring of the waste liquid, it is easy to spill and contaminate the environment, which increases unnecessary cleaning time and may cause serious allergic reactions and injuries if the worker accidentally touches the waste liquid.

[0008] Therefore, the present application provides a built-in discharging device of vacuum pouring box. UTILITY MODEL CONTENT

[0009] The utility model aims at providing a built-in discharging device of vacuum pouring box which is simple in structure, reasonable in design, can effectively improve the efficiency and reduce the cost.

[0010] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a built-in discharging device of vacuum pouring box, comprising:

[0011] A liquid storage tank is arranged in the vacuum pouring box, and the liquid storage tank is provided with a ventilation pipe, a feed inlet for receiving the liquid of the glue gun, and a liquid discharge pipe for discharging the liquid.

[0012] The air pressure control assembly comprises a solenoid valve group connected with the ventilation pipe, and a pressure switch, the solenoid valve group comprises a vacuum interface, an atmospheric interface and a high-pressure interface, the vacuum interface is communicated with the inside of the vacuum pouring box through the vacuum pipe, the atmospheric interface is communicated with the atmosphere, and the high-pressure interface is communicated with compressed air, and the solenoid valve group controls the vacuum interface, the atmospheric interface and the high-pressure interface to be connected with the ventilation pipe.

[0013] Further, the solenoid valve group comprises a first solenoid valve and a second solenoid valve, and the first solenoid valve and the second solenoid valve are both two-position three-way solenoid valves, the gas outlet of the first solenoid valve is connected with the pressure switch and the ventilation pipe, one gas inlet of the first solenoid valve is the vacuum interface, and the other gas inlet is connected with the gas outlet of the second solenoid valve, one gas inlet of the second solenoid valve is the atmospheric interface, and the other gas inlet is the high-pressure interface.

[0014] Further, the high-pressure interface is further connected with a pressure regulating valve.

[0015] Further, the feed inlet is provided with a receiving hopper.

[0016] Further, the feed inlet is provided with a feed valve, and the liquid discharge pipe is provided with a discharge valve.

[0017] Further, the liquid storage tank is provided with a proximity switch for monitoring the liquid level of the liquid storage tank.

[0018] Further, the liquid storage tank is provided with a glass window, and the glass window is arranged in the gas outlet direction of the ventilation pipe.

[0019] Compared with the prior art, the technical scheme has the following advantages:

[0020] The glue gun waste material online automatic discharge device has the advantages of simple structure and reasonable design, realizes online automatic discharge of the glue gun waste material in the vacuum pouring box, and does not need manual operation, does not need to break the vacuum of the whole vacuum pouring box and re-pump the vacuum of the whole pouring box, greatly reduces the labor cost, waiting operation time cost and energy cost, and effectively saves the cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The drawing shows a schematic view of the glue gun waste material online automatic discharge device.

[0022] MARKS:

[0023] 10 - vacuum pouring box,

[0024] 11 - glue gun,

[0025] 20 - liquid storage tank,

[0026] 21 - air pipe, 22 - feed inlet, 221 - material receiving hopper, 222 - feed valve, 23 - liquid discharge pipe, 231 - material discharge valve, 24 - proximity switch, 25 - glass window,

[0027] 30 - electromagnetic valve group,

[0028] 31 - vacuum interface, 311 - vacuum pipe, 32 - atmospheric interface, 33 - high pressure interface, 331 - pressure regulating valve, 34 - first electromagnetic valve, 35 - second electromagnetic valve,

[0029] 40 - pressure switch. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0031] It should be noted in the utility model that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the devices or elements of the utility model must have a specific orientation, so it cannot be understood as a limitation on the utility model. EMBODIMENT

[0032] Cooperation Figure 1 As shown in the utility model discloses a built-in discharging device of vacuum pouring box, the discharging device is used in the field of vacuum insulation glue pouring and sealing, which is arranged in the vacuum pouring box 10, and is used for automatically discharging the waste in the glue gun 11.

[0033] A built-in discharging device of vacuum pouring box, comprising:

[0034] The liquid storage tank 20 is arranged in the vacuum pouring box 10, and the liquid storage tank 20 is provided with an air pipe 21, a feed inlet 22 for receiving the liquid of the glue gun 11, and a liquid discharge pipe 23 for discharging the liquid;

[0035] The air pressure control assembly comprises an electromagnetic valve group 30 connected with the air exchange pipe 21, and a pressure switch 40. The electromagnetic valve group 30 comprises a vacuum interface 31, an atmospheric interface 32 and a high-pressure interface 33. The vacuum interface 31 is communicated with the inside of the vacuum pouring box 10 through the vacuum pipe 311. The atmospheric interface 32 is communicated with the atmosphere. The high-pressure interface 33 is communicated with compressed air. The electromagnetic valve group 30 controls the vacuum interface 31, the atmospheric interface 32 and the high-pressure interface 33 to be connected with the air exchange pipe 21 respectively.

[0036] The liquid storage tank 20 is used for receiving and storing the waste discharged from the glue gun 11. The liquid storage tank 20 is arranged in the vacuum pouring box 10 and below the material tray conveying line, so as not to affect the normal pouring of the glue gun 11. The liquid storage tank 20 is arranged upside down, which ingeniously utilizes the bottom space of the vacuum pouring box 10, and does not increase the height of the pouring box. By replacing the liquid storage tank 20 with different heights, the discharge amount requirement of different equipment can be adapted. In addition, the inlet 22 of the liquid storage tank 20 needs to be arranged in the movement stroke of the glue gun 11 to ensure that the inlet 22 can receive the waste discharged from the glue gun 11. The air exchange pipe 21 is used to be connected with the air pressure control assembly to control and adjust the air pressure in the liquid storage tank 20. The discharge pipe 23 is used to discharge the waste collected and stored in the liquid storage tank 20.

[0037] The air pressure control assembly is communicated with the inside of the liquid storage tank 20 through the air exchange pipe 21, and is used to control and adjust the air pressure in the liquid storage tank 20. The pressure switch 40 is used to monitor the air pressure in the liquid storage tank 20. Preferably, the stroke of the pressure switch 40 is-100~1000kPa, which has the ability of positive pressure monitoring and certain negative pressure monitoring. The electromagnetic valve group 30 is used to control the switching of the air exchange pipe 21 to be connected with the vacuum interface 31, or the atmospheric interface 32, or the high-pressure interface 33. When the air exchange pipe 21 is connected with the vacuum interface 31, the liquid storage tank 20 is communicated with the inside of the vacuum pouring box 10 through the air exchange pipe 21, the electromagnetic valve group 30 and the vacuum pipe 311. Under the vacuumizing effect of the vacuum pouring box 10, the liquid storage tank 20 will finally reach the vacuum balance with the vacuum pouring box 10. When the air exchange pipe 21 is connected with the atmospheric interface 32, the liquid storage tank 20 is communicated with the outside atmosphere through the air exchange pipe 21, the electromagnetic valve group 30 and the atmospheric interface 32. The pressure in the liquid storage tank 20 will finally reach the atmospheric pressure value. When the air exchange pipe 21 is connected with the high-pressure interface 33, the liquid storage tank 20 is communicated with the compressed air through the air exchange pipe 21, the electromagnetic valve group 30 and the high-pressure interface 33. The compressed air enters the liquid storage tank 20 to increase the internal pressure.

[0038] Preferably, the liquid storage tank 20 is arranged in the vacuum pouring box 10, and the air pressure control assembly is arranged outside the vacuum pouring box 10. The air exchange pipe 21 and the vacuum pipe 311 are sealed and penetrate the vacuum pouring box 10 to connect the liquid storage tank 20 and the air pressure control assembly.

[0039] The feeding port 22 is provided with a receiving hopper 221. The receiving hopper 221 can make the waste discharged from the glue gun 11 more accurately to the feeding port 22, avoiding misdischarge due to inaccurate position. The feeding port 22 is provided with a feeding valve 222, and the liquid discharge pipe 23 is provided with a discharge valve 231. The feeding valve 222 is used for opening and closing control of the feeding port 22, and the discharge valve 231 is arranged on the liquid discharge pipe 23 and is used for controlling whether to discharge.

[0040] The liquid storage tank 20 is provided with a proximity switch 24 for monitoring the liquid level of the liquid storage tank 20. The effective volume of the liquid storage tank 20 is designed to meet the maximum discharge requirement of the glue gun 11 once or multiple times, but in order to avoid accidental use for setting the highest liquid level, the proximity switch 24 is arranged at the upper part of the liquid storage tank 20. When the proximity switch 24 detects that the liquid level of the liquid storage tank 20 reaches the highest liquid level, the discharge device will start forced discharge, and the liquid in the liquid storage tank 20 is discharged through the liquid discharge pipe 23.

[0041] The liquid storage tank 20 is provided with a glass window 25 arranged in the gas outlet direction of the air exchange pipe 21. The glass window 25 is convenient for observing the liquid level in the liquid storage tank 20. The glass window 25 is arranged at the position in the gas outlet direction of the air exchange pipe 21. When the gas enters the liquid storage tank 20 through the air exchange pipe 21, it just flushes the glass window 25, achieving the effect of cleaning the glass window 25. In the embodiment, one end of the air exchange pipe 21 connected to the liquid storage tank 20 is arranged downward, and the glass window 25 is arranged below it. The downward gas outlet of the air exchange pipe 21 flushes and cleans the glass window 25.

[0042] In the embodiment, the electromagnetic valve group 30 includes a first electromagnetic valve 34 and a second electromagnetic valve 35, and the first electromagnetic valve 34 and the second electromagnetic valve 35 are both two-position three-way electromagnetic valves. The gas outlet of the first electromagnetic valve 34 is connected with the pressure switch 40 and the air exchange pipe 21. One gas inlet of the first electromagnetic valve 34 is the vacuum interface 31, and the other gas inlet is connected with the gas outlet of the second electromagnetic valve 35. One gas inlet of the second electromagnetic valve 35 is the atmospheric interface 32, and the other gas inlet is the high-pressure interface 33. The series connection of the first electromagnetic valve 34 and the second electromagnetic valve 35 realizes the connection of the air exchange pipe 21 with the vacuum interface 31, the atmospheric interface 32 or the high-pressure interface 33 through the control switching of the two electromagnetic valves.

[0043] The high-pressure interface 33 is further connected with a pressure regulating valve 331. The pressure regulating valve 331 is used for adjusting the pressure of the compressed gas entering the air exchange pipe 21, which is convenient and fast.

[0044] The working process of the built-in discharge device is as follows:

[0045] When the system sends out the signal of discharging (initial state: the feeding valve 222 and the discharging valve 231 are both closed, and the electromagnetic valve group 30 controls the gas exchange pipe 21 to be connected with the atmospheric interface 32), the glue gun 11 is moved to above the receiving hopper 221 by the three-axis moving mechanism matched with the vacuum pouring box 10, at this time, the electromagnetic valve group 30 controls the gas exchange pipe 21 to be connected with the vacuum interface 31, the liquid storage tank 20 is connected with the space in the vacuum pouring box 10, and the vacuum in the liquid storage tank 20 and the vacuum pouring box 10 is balanced after about several seconds and is monitored and confirmed by the pressure switch 40;

[0046] Then the waste is received, the feeding valve 222 is opened, the glue gun 11 is opened to discharge the waste into the liquid storage tank 20 through the receiving hopper 221, after the waste receiving is completed, the glue gun 11 and the feeding valve 222 are closed;

[0047] Then the vacuum is broken, the electromagnetic valve group 30 controls the gas exchange pipe 21 to be connected with the atmospheric interface 32, the gas exchange pipe 21 is connected with the atmosphere to break the vacuum of the liquid storage tank 20, until the pressure switch 40 monitors that the air pressure value in the liquid storage tank 20 reaches the atmospheric pressure value;

[0048] Finally, the waste is discharged by pressurization, the discharging valve 231 is opened, the electromagnetic valve group 30 controls the gas exchange pipe 21 to be connected with the high-pressure interface 33, the compressed air is adjusted to a proper pressure by the pressure regulating valve 331, then enters the liquid storage tank 20 to pressurize, and helps the waste liquid with high viscosity to be discharged through the liquid discharge pipe 23 to the waste liquid barrel outside the vacuum pouring box 10. When the pressure switch 40 monitors that the pressure of the compressed air flowing through sharply decreases to the standard atmospheric pressure, it is indicated that the waste liquid in the liquid storage tank 20 and the liquid discharge pipe 23 has been discharged, the waste is discharged by pressurization, the discharging valve 231 is closed, and the electromagnetic valve group 30 controls the gas exchange pipe 21 to return to the initial state of being connected with the atmospheric interface 32.

[0049] The above merely describes the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A built-in discharge device of a vacuum ladle, characterized by: The application relates to a vacuum injection box for liquid material, which comprises the following parts: a liquid storage tank arranged in the vacuum injection box, the liquid storage tank being provided with a gas exchange pipe, a material inlet for receiving a glue gun liquid material, and a liquid discharge pipe for discharging the liquid material; a gas pressure control assembly, which comprises an electromagnetic valve group connected with the gas exchange pipe, and a pressure switch, the electromagnetic valve group comprising a vacuum interface, an atmospheric interface and a high-pressure interface, the vacuum interface being communicated with the inside of the vacuum injection box through a vacuum pipe, the atmospheric interface being communicated with the atmosphere, and the high-pressure interface being communicated with compressed air, the electromagnetic valve group controlling the vacuum interface, the atmospheric interface and the high-pressure interface to be connected with the gas exchange pipe respectively.

2. A built-in discharge device for a vacuum ladle according to claim 1, characterized in that: The electromagnetic valve group comprises a first electromagnetic valve and a second electromagnetic valve, and the first electromagnetic valve and the second electromagnetic valve are both two-position three-way electromagnetic valves, the gas outlet of the first electromagnetic valve being connected with the pressure switch and the gas exchange pipe, one gas inlet of the first electromagnetic valve being the vacuum interface, and the other gas inlet being connected with the gas outlet of the second electromagnetic valve, one gas inlet of the second electromagnetic valve being the atmospheric interface, and the other gas inlet being the high-pressure interface.

3. A built-in discharge device for a vacuum ladle according to claim 1, characterized in that: The high-pressure interface is further connected with a pressure regulating valve.

4. A built-in discharge device for a vacuum ladle according to claim 1, characterized in that: The material inlet is provided with a material receiving hopper.

5. A built-in discharge device for a vacuum ladle according to claim 1, characterized in that: The material inlet is provided with a material valve, and the liquid discharge pipe is provided with a discharge valve.

6. A built-in discharge device for a vacuum ladle according to claim 1, characterized in that: The liquid storage tank is provided with a proximity switch for monitoring the liquid level of the liquid storage tank.

7. A built-in discharge device for a vacuum ladle according to claim 1, characterized in that: The liquid storage tank is provided with a glass window, and the glass window is arranged in the gas outlet direction of the gas exchange pipe.

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