Fully automatic vacuum cleaning machine

Abstract

The present invention relates to a fully automatic vacuum material cleaning machine, comprising: a frame; a furnace: the top of the furnace is provided with an openable and closable furnace cover, and the side walls of the furnace are provided with a heating unit; an exhaust gas filtration unit: connected to the furnace, used to purify and discharge exhaust gas discharged from the furnace due to organic matter generated after high-temperature sintering; an exhaust unit: connected to the exhaust gas filtration unit, and discharges the treated exhaust gas to the atmosphere, the exhaust unit including a vacuum branch and a cooling branch, and at most only one of the vacuum branch and the cooling branch is in operation; a furnace cooling unit: connected to the furnace, used to cool the high-temperature furnace and parts after operation. The present invention integrates a heating and insulation system, a furnace cooling system, a vacuum system, and an exhaust gas filtration system into a single device, which can perfectly remove organic matter remaining on the surface of metal parts.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding accessories, and in particular to a full-automatic vacuum cleaning machine. Background Art

[0002] Injection molded products are becoming increasingly widespread, placing ever-higher demands on machinery, molds, raw materials, processes, and the environment. This is especially true given the growing global concern for environmental pollution. While plastics largely meet a wide range of human needs, they can also be highly polluting. For example, the high-temperature gases generated during production, as well as the carbides, sulfides, smoke, and dust produced after carbonization, pose certain hazards to both humans and the environment. In particular, during maintenance and repair of plastic machinery like injection molding machines, extruders, and rubber extruders, it's common to remove metal parts bonded to the plastic, such as screws, barrels, flanges, nozzles, die heads, and hot runners. Removing and cleaning the remaining plastic requires burning it with a high-temperature flame or furnace before re-polishing. This process typically involves companies using a torch to heat the part until the plastic is completely decomposed. This process generates significant amounts of smoke and airborne particles, and the burning temperature can be difficult to accurately control. Excessive burning times often lead to the annealing of parts, resulting in a loss of their original performance. The burning process poses great safety hazards to operators, such as pungent odor and burns. The high-temperature jet gas generated by the sintered parts may cause serious damage to the eyes and other parts of the body.

[0003] In response to the above environmental and safety issues, it is urgent to develop a device that is simple to operate, environmentally friendly and safe. Summary of the Invention

[0004] The purpose of the present invention is to provide a fully automatic vacuum cleaning machine in order to overcome the defects of the above-mentioned prior art.

[0005] In order to achieve the purpose of the present invention, this application provides the following technical solutions.

[0006] In a first aspect, the present application provides a fully automatic vacuum cleaning machine, which is used to purify organic matter attached to the surface of a part, and the vacuum cleaning machine includes:

[0007] frame;

[0008] Furnace: An openable and closable furnace cover is provided above the furnace, and a heating unit is provided on the side wall of the furnace;

[0009] Exhaust gas filtering unit: connected to the furnace, used to purify and discharge the exhaust gas discharged in the furnace due to the organic matter produced after high-temperature sintering;

[0010] Exhaust unit: connected to the exhaust gas filtration unit and discharges the treated exhaust gas into the atmosphere. The exhaust unit includes a vacuum branch and a cooling branch, and at most only one of the vacuum branch and the cooling branch is in operation;

[0011] Furnace cooling unit: connected to the furnace, used to cool the high-temperature furnace and parts after work.

[0012] This application integrates the heating unit, vacuum unit, cooling unit, and exhaust gas filtration unit into one device, and places the parts to be cleaned with plastic, rubber, etc. attached to the surface in the furnace. Under high temperature and vacuum environment, the high molecular polymers attached to the surface of the parts are decomposed into small molecular organic matter, a small part of which is ash, which remains on the surface of the parts and is easy to fall off; most of it is converted into gas, such as carbon monoxide, plastic hot medium gas, hydrogen sulfide, hydrogen chloride, etc. This part of the gas is converted into carbon dioxide and water in the exhaust gas filtration unit and can be discharged into the air without pollution.

[0013] In one embodiment of the first aspect, the vacuum branch includes an intake valve, a vacuum pump and an exhaust valve connected in sequence, the intake valve is connected to the tail end of the exhaust gas filter unit, and the intake valve, vacuum pump and exhaust valve are opened or closed at the same time.

[0014] In one embodiment of the first aspect, the cooling branch includes an exhaust valve and an exhaust fan connected in sequence, the exhaust valve is connected to the tail end of the exhaust gas filter unit; at most only one of the exhaust valve and the intake valve is in an open state.

[0015] In one embodiment of the first aspect, the furnace cooling unit includes a compression unit and an inflation valve connected in sequence. The bypass valve is opened before the inflation valve is opened. The compression unit draws air from the outside to form compressed air. When the compressed air is greater than the maximum value of the safety valve, the safety valve will automatically explode to release pressure, thereby preventing the furnace from cracking or other dangers due to excessive air pressure.

[0016] In this application, the air intake valve, exhaust valve, bypass valve and inflation valve all use pneumatic ball valves, that is, compressed air is used to open the above four valves. Therefore, this application is also equipped with a compressor, an air source filter regulator and an air valve, and the opening and closing of each valve is controlled by a controller to achieve the connection and disconnection of the vacuum branch and the cooling branch.

[0017] In one embodiment of the first aspect, the exterior of the furnace is wrapped with an aerogel insulation cover, and the interior of the furnace cover is provided with asbestos for thermal insulation. The aerogel insulation cover and asbestos are provided primarily to better control the temperature within the furnace, thereby maintaining heat during operation and saving energy.

[0018] In one embodiment of the first aspect, a cooling water pipeline is provided at the connection between the furnace and the frame and inside the furnace cover, and the cooling water pipeline is connected to cold water. The cooling water pipeline is provided at the above two places to avoid excessive temperature of the frame and the furnace cover, which may damage other parts of the equipment such as wires and controllers, and at the same time, may avoid harm to the operator. All cooling water pipelines are connected in series with a water pump, an air-cooled cooler and a water tank using multiple pipes. The cold water reaches the air cooler after passing through the furnace and furnace cover channels to ensure that the water temperature is not too high. The start and stop temperature of the water pump has a program-based anti-fouling design to avoid accidental human contact and shutdown of the water pump, and to avoid excessive temperature of the entire machine and damage to some components.

[0019] In one embodiment of the first aspect, a horizontally arranged rotating shaft is provided on one side of the furnace cover, the furnace cover is connected to the furnace top via the rotating shaft, a gear is provided at one end of the rotating shaft, and the material cleaning machine is provided with a lifting cylinder, a rack is fixed to the lifting cylinder, and the rack meshes with the gear; the compressed air source used by the lifting cylinder can be the same as the air source used by the valve, and the compressed air is used to drive the lifting cylinder to move up and down, thereby driving the rack to move up and down, and then driving the rotation of the gear, ultimately causing the furnace cover to rotate about the rotating shaft. This opening and closing method of the furnace cover can achieve automatic opening and closing, reduce the workload of the operator, and is safe and reliable.

[0020] The other side of the furnace cover is equipped with multiple locking devices. Since the entire furnace chamber must be in a vacuum state during parts cleaning, the furnace cover must be sealed. In this application, a sealing strip is provided at the connection between the furnace cover and the furnace chamber, and a locking device is used to lock the furnace chamber to ensure its airtightness. The locking device is conventional, such as a snap-fit ​​structure. Preferably, multiple internally threaded handles are provided on the other side of the furnace cover, which cooperate with the fisheye externally threaded screw structure to form a locking device.

[0021] In one embodiment of the first aspect, the exhaust gas filtration unit includes an exhaust gas processor, a cooling coil, and an oil smoke water filter connected in sequence, wherein:

[0022] The exhaust gas processor is a three-way catalytic converter. A heating coil and a temperature sensing wire are provided on the outside of the exhaust gas processor. The temperature can be adjusted according to the different organic matter adhered to the workpiece. The three-way catalytic converter is an existing technology that can effectively remove the gas generated by the decomposition of organic matter. The heating coil is provided because the three-way catalytic converter requires a certain temperature to achieve a relatively high efficiency of the catalytic reaction.

[0023] The oil smoke and water filter is a triple filter. The triple filter used in this application is also existing technology and can effectively remove oil, water and smoke.

[0024] In one embodiment of the first aspect, the furnace includes a horizontal structure and a vertical structure, and when the furnace is a vertical structure, the furnace cover is arranged on the top of the furnace; when the furnace is a horizontal structure, the furnace cover is arranged on one side of the upper end of the furnace.

[0025] In one embodiment of the first aspect, when the furnace is a vertical structure, the furnace is T-shaped, comprising an upper and lower interconnected furnace chambers. The inner diameter of the upper furnace chamber is larger than that of the lower furnace chamber, and a suspension rod is provided at the upper end of the upper furnace chamber. This arrangement is designed to accommodate cleaning of parts of varying sizes and shapes. Slender parts can be suspended in the lower furnace chamber for cleaning, while other parts can be placed in the upper furnace chamber for cleaning.

[0026] In a second aspect, the present application provides a cleaning method comprising the following steps:

[0027] (1) Place the parts to be cleaned into the furnace and close the furnace cover;

[0028] (2) Close the furnace cooling unit and the cooling branch in the exhaust unit, turn on the heating unit to make the temperature in the furnace, and then intermittently switch the vacuum branch in the exhaust unit until the parts are cleaned;

[0029] (3) Turn off the heating unit, turn off the vacuum branch in the exhaust unit, open the furnace cooling unit and the cooling branch in the exhaust unit, open the furnace cover after the furnace cools down, take out the parts, peel off the ash attached to the surface, and complete the material cleaning.

[0030] Specifically, the cleaning method comprises the following steps:

[0031] (1) Place the parts to be cleaned into the furnace, close the furnace cover and lock all the clamping handles;

[0032] (2) Set the maximum and minimum vacuum values ​​first, and then turn on the heating unit after the vacuum reaches the set value. During the sintering process, the vacuum will be continuously lost and compensated. While the vacuum is being drawn, the exhaust gas in the furnace is removed until the parts are sintered.

[0033] (3) Turn off the heating unit, the exhaust valve, the air inlet valve, and the vacuum pump, and open the bypass valve, the air charging valve, and the exhaust fan. Wait until the furnace reaches the set cooling temperature before loosening the furnace cover clamping handle, opening the furnace cover, taking out the parts, and peeling off the ash attached to the surface to complete the material cleaning.

[0034] In addition, there is a protection temperature setting for opening the furnace cover. When the temperature does not drop to the set temperature, the furnace cover will open.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] (1) The cleaning machine integrates the heating and insulation system, furnace cooling system, vacuum system, and exhaust gas filtration system into one device, which can perfectly remove the organic matter remaining on the surface of metal parts;

[0037] (2) This equipment adopts human-computer interaction interface, simple operation, safety and environmental protection;

[0038] (3) Mechanical automatic opening and closing of the lid reduces the workload of operators and is safe and reliable;

[0039] (4) Equipped with an intelligent PID temperature control system and a step-by-step temperature rise program, the furnace temperature is precisely controlled to ensure that the parts will not be annealed due to excessive temperature;

[0040] (5) Equipped with a specially designed and customized aerogel thermal insulation cover, it can greatly reduce the temperature of the machine and save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a left side schematic diagram of the material cleaning machine in Example 1;

[0042] Figure 2 It is a schematic diagram of the right side of the cleaning machine in Example 1;

[0043] Figure 3 This is a schematic diagram of the main view of the material cleaning machine in Example 1;

[0044] Figure 4 Schematic diagram of the cross-sectional structure of the furnace and furnace cover in Example 1;

[0045] Figure 5 This is a schematic diagram of the gas flow principle in Example 1;

[0046] Figure 6 This is a schematic diagram of the cooling water flow principle in Example 1;

[0047] Figure 7 This is a schematic diagram of the control panel in Example 1;

[0048] Figure 8 This is a left-side structural diagram of the furnace and furnace cover in Example 2;

[0049] Figure 9 This is a schematic diagram of the main structure of the furnace and furnace cover in Example 2.

[0050] In the accompanying drawings, 1 is a frame, 2 is a roller, 3 is an upper furnace, 4 is a lower furnace, 5 is a furnace cover, 6 is a rotating shaft, 7 is a gear, 8 is a rack, 9 is a lifting cylinder, 10 is a furnace cover clamping handle, 11 is a PID temperature control system, 12 is an alarm, 13 is an exhaust gas processor, 14 is a cooling coil, 15 is a water tank, 16 is a fume water filter, 17 is an air intake valve, 18 is a vacuum pump, 19 is an exhaust valve, 20 is a bypass valve, 21 is a water pump, 22 is an inflation valve, 23 is a heating unit, 24 is an aerogel thermal insulation cover, 25 is a cooling water pipeline, 26 is a cooling fan, 27 is a compressor, 28 is an air source filter regulator, 29 is an air valve, 30 is an exhaust fan, 31 is a hanging rod, 32 is an asbestos layer, 33 is a horizontal furnace, and 34 is a high-efficiency ion purification net. DETAILED DESCRIPTION

[0051] Unless otherwise indicated, implied from the context, or customary in the art, all parts and percentages in this application are based on weight, and the test and characterization methods used are current as of the filing date of this application. Where applicable, the contents of any patents, patent applications, or publications referred to in this application are incorporated herein by reference in their entirety, and their equivalent patent families are also incorporated by reference, especially with respect to definitions of synthetic techniques, product and processing designs, polymers, comonomers, initiators, or catalysts disclosed in these documents in the art. If the definition of a specific term disclosed in the prior art is inconsistent with any definition provided in this application, the definition of the term provided in this application shall prevail.

[0052] The numerical ranges in this application are approximate and therefore may include values ​​outside the range unless otherwise indicated. Numerical ranges include all values ​​from the lower limit to the upper limit in increments of 1 unit, provided that there is a separation of at least 2 units between any lower value and any higher value. For ranges containing single digit numbers less than 10 (e.g., 1 to 5), 1 unit is generally considered to be 0.1. These are merely specific examples of what is intended, and all possible combinations of values ​​between the lowest and highest values ​​recited are considered to be expressly stated in this application.

[0053] The terms "comprises," "including," "having," and their derivatives do not exclude the presence of any other components, steps, or processes, and are irrelevant to whether such other components, steps, or processes are disclosed in this application. In contrast, the term "consisting essentially of excludes any other components, steps, or processes from the scope of any subsequent recitation of that term, except those necessary for operational performance. The term "consisting of does not include any component, step, or process not specifically described or listed. Unless expressly stated otherwise, the term "or" refers to the listed members individually or in any combination.

[0054] Example

[0055] The embodiments of the present invention will be described in detail below. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0056] Example 1

[0057] A fully automatic vacuum cleaning machine, its structure is as follows Figures 1 to 4 As shown, it includes a frame 1, a furnace, a heating unit 23, a cooling unit, an exhaust unit, an exhaust gas filter unit, a cooling water unit, etc. All the equipment is installed in the frame 1. The bottom of the frame 1 is equipped with rollers 2, so that the entire cleaning machine can be moved. The specific structure is as follows:

[0058] The furnace is a vertical structure, including an upper furnace 3 and a lower furnace 4. Both the upper furnace 3 and the lower furnace 4 are hollow cylindrical structures. The diameter of the upper furnace 3 is larger than that of the lower furnace 4, and the two are connected. A suspension rod 31 is provided at the top of the lower furnace 4. The size of the furnace in this embodiment is not limited. The size of the parts to be processed is used as a reference. The larger the part, the larger the upper furnace 3 and the lower furnace 4, as well as the corresponding pipes and accessories. A furnace cover 5 is provided on the top of the upper furnace 3. One side of the furnace cover 5 is connected to the top of the upper furnace 3 by a rotating shaft 6. A rotating gear 7 is provided at one end of the rotating shaft 6. The cleaning machine is equipped with a lifting cylinder 9, which is fixed with a rack 8, which meshes with the gear 7. Two furnace cover clamping handles 10 are provided on the other side of the furnace cover 5. A heating unit 23 is installed on the side walls of the upper furnace 3 and the lower furnace 4. The heating unit 23 is connected to the PID temperature control system 11 and is controlled by the PID temperature control system 11 to adjust the internal temperature of the furnace. A control system is installed on the rack 1. The PID temperature control system 11 is part of the control system. The control panel of the control system is as shown in FIG. Figure 7 As shown, it includes a main switch, a vacuum pressure gauge, an emergency stop switch, a touch screen, a furnace temperature monitoring meter, a three-way catalytic converter temperature control meter, a power indicator light, a switch knob, etc. The core of the control system is the PLC controller, which includes a PID temperature control system 11. The PLC controller has a safety self-locking function for each action. Each action must meet the safety value of the next action before the self-locking protection is released. An alarm 12 is installed on the frame 1. When the machine is overloaded, the PLC controller will perform self-protection and activate the alarm 12 to prompt the operator to shut down the entire device urgently. After the cleaning work is completed, the PLC controller will also send a signal to the alarm 12 to notify the alarm. The outside of the upper furnace 3 and the lower furnace 4 are also wrapped with an aerogel insulation cover 24, and an asbestos layer 32 is provided inside the furnace cover 5. A cooling water pipeline is provided at the connection between the furnace and the frame 1, and a cooling water pipeline is also provided inside the furnace cover 5. Figure 4The cooling water pipeline at the connection between the furnace and the frame 1 is not shown, and the cooling water pipeline inside the furnace cover 5 is only represented by the cross section of the cooling water pipeline. In addition, the PLC controller of this embodiment also has a time reservation function.

[0059] The exhaust gas filtration unit in this embodiment includes an exhaust gas processor 13, a cooling coil 14, and an oil fume filter 16, which are connected in sequence. The exhaust gas filter is a three-way catalytic converter. The cooling coil 14 passes through a water tank 15, exchanging heat with the water therein. The oil fume filter 16 is a triple filter. The exhaust gas filter is connected to the furnace, and the oil fume filter 16 is connected to the exhaust unit.

[0060] The exhaust unit of this embodiment includes a vacuum branch and a cooling branch, wherein the vacuum branch includes an intake valve 17, a vacuum pump 18 and an exhaust valve 19 connected in sequence, the intake valve 17 is connected to the oil fume water filter 16, and the exhaust valve 19 is connected to the exhaust fan 30. The exhaust fan 30 is placed in an exhaust fan box. Inside the exhaust box, a high-efficiency ion purification net 34 is provided in front of the exhaust fan 30. All gases discharged into the atmosphere must be filtered by this high-efficiency ion purification net 34. The cooling branch includes a bypass valve 20, the inlet end of the bypass valve 20 is connected to the oil fume water filter 16, and the outlet end of the bypass valve 20 is also connected to the exhaust box. The cooling unit of this embodiment includes a compressor 27 and an air charging valve 22, and the air charging valve 22 is connected to the furnace. In this embodiment, the inflation valve 22, the intake valve 17, the exhaust valve 19 and the bypass valve 20 are all pneumatic ball valves. Therefore, in order to open the above valves, an air source filter regulator 28 and an air valve 29 are also required. The air source filter regulator 28 is connected to the compressor 27, and the air valve 29 is connected to the inflation valve 22, the intake valve 17, the exhaust valve 19 and the bypass valve 20.

[0061] The gas path of this embodiment is as follows Figure 5 As shown, the compressor 27 extracts air from the air and delivers it to the air source filter pressure regulator 28. The gas at the outlet of the air source filter pressure regulator 28 is divided into two paths. The first path supplies the inflation valve 22 and enters the furnace for cooling the furnace; the second path supplies the gas valve 29, and the outlet gas of the gas valve 29 is divided into five paths, one of which supplies the lifting cylinder 9 for opening and closing the furnace cover 5; the remaining four paths are used for opening and closing the inflation valve 22, the air inlet valve 17, the exhaust valve 19 and the bypass valve 20.

[0062] The waterway of this embodiment is as follows Figure 6As shown, the water tank 15 is connected to a water pump 21, which is connected to a cooling water pipe 25 provided at the connection between the furnace and the frame 1 and inside the furnace cover 5 to cool the connection and the furnace cover 5. The cooling water then circulates back to the water tank 15. Before returning to the water tank 15, the cooling water passes through a cooling fan 26 and is cooled by air. A cooling coil 14 is provided in the water tank 15, and its two ends are respectively connected to the exhaust gas processor 13 and the oil smoke water filter 16.

[0063] The working principle of this embodiment is as follows:

[0064] (1) Place the parts to be cleaned in the furnace, with larger parts placed in the upper furnace 3 and slender parts placed in the lower furnace 4, and hang them on the suspension rod 31. Then, the compressor 27 delivers compressed air through the air source filter regulator 28 and the air valve 29 into the lifting cylinder 9, causing the lifting cylinder 9 to operate, close the furnace cover 5, and turn the furnace cover clamping handle 10 to seal the upper furnace 3 and the lower furnace 4.

[0065] (2) The PLC controller (hereinafter referred to as the industrial control) sets parameters according to process requirements and issues instructions to close the charging valve 22 and the exhaust valve 19, and to open the intake valve 17, vacuum pump 18, exhaust valve 19, and exhaust fan 30, so that the upper furnace 3 and the lower furnace 4 are in a vacuum state. The vacuum degree is detected. When the vacuum degree reaches the set negative pressure, the vacuum sensor inputs a signal to the industrial control, and then closes the intake valve 17, vacuum pump 18, and exhaust valve 19. The industrial control (i.e., the PID temperature control system 11) then simultaneously turns on the power module according to the set parameters. The power module outputs voltage and current to the heating unit 23, controlling its operation, causing the temperature in the upper furnace 3 and the lower furnace 4 to rise. The thermocouple in the furnace chamber feeds back the signal to the industrial control, implementing precise temperature control, and finally stabilizing within a certain temperature range (generally 450-550°C). Under high temperature and vacuum conditions, organic matter attached to the surface of the parts begins to decompose, generating carbon and waste gas. As exhaust gas is generated, the vacuum level within the furnace gradually decreases. Therefore, the industrial control system periodically opens the inlet valve 17, vacuum pump 18, and exhaust valve 19 to extract the exhaust gas and maintain a vacuum within the furnace. After reacting in the exhaust gas processor 13, cooling in the cooling coil 14, and processing in the fume filter 16, the extracted exhaust gas is no longer polluting. After passing through the inlet valve 17, vacuum pump 18, and exhaust valve 19, it is discharged to the atmosphere through the exhaust fan 30. Treatment is complete once the organic matter adhering to the surface of the parts is completely decomposed. Simultaneously with heating, the industrial control system activates the cooling water pump 21, circulating the cooling water. When the water temperature reaches the set value, the industrial control system activates the cooling fan 26 to control the cooling water temperature during this process. The high-temperature gas from the exhaust gas processor 13 enters the cooling coil 14, where it undergoes heat exchange with the water in the water tank 15, cooling the gas and causing some of the gas to condense. The gas then enters the fume filter 16 for adsorption and processing. Water in water tank 15 is pumped by water pump 21 into cooling water pipeline 25, where it cools furnace cover 5 and the cooling water channels at the connection between the furnace and the frame, preventing temperature rise within frame 1 and the impact on other components. The water in cooling water pipeline 25 is cooled by cooling fan 26 and returned to water tank 15 for recycling.

[0066] (3) After the treatment is completed, the industrial control system closes the air inlet valve 17, the vacuum pump 18 and the exhaust valve 19, opens the air charging valve 22 and the bypass valve 20, and the compressor 27 injects the compressed air into the furnace through the air source filter regulator 28 and the air charging valve 22 to cool the furnace. After this part of the gas comes out of the furnace, it passes through the exhaust gas processor 13, the cooling coil 14, the oil fume water filter 16, and the bypass valve 20 in sequence, and is discharged to the atmosphere through the exhaust fan 30, which will not cause air pollution.

[0067] (4) After the furnace chamber and furnace cover have cooled, the industrial control system sends a signal to the alarm 12, indicating that the cleaning is complete. The operator turns the furnace cover clamping handle 10, and the industrial control system then controls the lifting cylinder 9 to operate, causing the furnace cover 5 to open. The furnace cover 5 is also opened at a set protection temperature. When the temperature does not drop below the set temperature, the lifting cylinder 9 can operate and the furnace cover 5 can be opened. The parts are removed and the dust attached to the surface of the parts is peeled off, completing the entire cleaning process.

[0068] Example 2

[0069] A fully automatic vacuum cleaning machine, the furnace structure of which is as follows Figure 8 、 Figure 9 As shown, the furnace chamber is a horizontal structure, namely a horizontal furnace chamber 33, primarily designed for cleaning relatively large linear parts. The horizontal furnace chamber 33 is cubical in shape and can accommodate large linear parts, such as extruder screws. A furnace cover 5 is mounted on one side of the top of the horizontal furnace chamber 33 via a rotating shaft 6. A rotating gear 7 is located at one end of the rotating shaft 6. The cleaning machine is equipped with a lifting cylinder 9, which is secured with a rack 8 that meshes with the gear 7. Two lid clamping handles 10 are located on the other side of the furnace cover 5. An asbestos layer 32 is provided inside the furnace cover 5 for insulation, along with a cooling water line 25, similar to Example 1. A heating unit 23 is installed on the sidewalls of the horizontal furnace chamber 33, and an aerogel insulation cover 24 is wrapped around the exterior of the horizontal furnace chamber 33, also similar to Example 1. This embodiment does not limit the size of the horizontal furnace chamber 33; vacuum cleaners of different specifications can be selected based on the actual application and part size.

[0070] The above description of the embodiments is intended to facilitate understanding and application of the present application by those skilled in the art. It will be apparent that those skilled in the art can readily make various modifications to these embodiments and apply the general principles described herein to other embodiments without expending any creative effort. Therefore, the present application is not limited to the embodiments described herein, and improvements and modifications made by those skilled in the art based on the disclosure of this application without departing from the scope and spirit of this application are within the scope of this application.

Claims

1. A fully automatic vacuum cleaning machine, which is used to clean organic matter attached to the surface of parts, characterized in that: The vacuum cleaning machine comprises: frame; Furnace: The furnace is a vertical structure, the top of the furnace is provided with an openable and closable furnace cover, the side wall of the furnace is provided with a heating unit, the furnace is T-shaped, and includes an upper furnace and a lower furnace that are connected to each other, the inner diameter of the upper furnace is larger than the inner diameter of the lower furnace, and a hanging rod is provided at the upper end of the upper furnace, a rotating shaft is provided on one side of the furnace cover, the furnace cover is connected to the furnace through the rotating shaft, one end of the rotating shaft is provided with a gear, the cleaning machine is provided with a lifting cylinder, the lifting cylinder is fixed with a rack, and the rack is meshed with the gear; a plurality of locking devices are provided on the other side of the furnace cover; Exhaust gas filtration unit: includes an exhaust gas processor, a cooling coil, and an oil fume water filter connected in sequence, wherein the exhaust gas processor is a three-way catalytic converter, and a heating coil is provided on the outside of the exhaust gas processor; the oil fume water filter is a triple filter, and the exhaust gas filtration unit is connected to the furnace to purify and discharge the exhaust gas discharged in the furnace due to the high-temperature sintering of organic matter; Exhaust unit: connected to the exhaust gas filtration unit and discharges the treated exhaust gas into the atmosphere. The exhaust unit includes a vacuum branch and a cooling branch, and at most only one of the vacuum branch and the cooling branch is in operation; Furnace cooling unit: connected to the furnace, used to cool the high-temperature furnace and parts after work.

2. The automatic vacuum cleaning machine according to claim 1, characterized in that: The vacuum branch includes an intake valve, a vacuum pump and an exhaust valve connected in sequence. The intake valve is communicated with the tail end of the exhaust gas filter unit. The intake valve, vacuum pump and exhaust valve are opened or closed at the same time.

3. The automatic vacuum cleaning machine according to claim 2, characterized in that: The cooling branch includes an exhaust valve and an exhaust fan connected in sequence, and the exhaust valve is communicated with the tail end of the exhaust gas filter unit; at most only one of the exhaust valve and the intake valve is in an open state.

4. The automatic vacuum cleaning machine according to claim 3, characterized in that: The furnace cooling unit includes a compression unit and an air charging valve connected in sequence, and the air charging valve and the exhaust valve are opened or closed at the same time.

5. The automatic vacuum cleaning machine according to claim 1, characterized in that: The outside of the furnace is wrapped with an aerogel heat insulation cover, and the inside of the furnace cover is provided with asbestos for heat insulation.

6. The automatic vacuum cleaning machine according to claim 5, characterized in that: The connection between the furnace and the frame and the interior of the furnace cover are both provided with cooling water pipelines, and the cooling water pipelines are connected to cold water.

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