Waste gas treatment mechanism of injection molding machine

Abstract

The utility model discloses a waste gas treatment mechanism of an injection molding machine, which relates to the technical field of injection molding machines and comprises a bottom plate, a gas inlet mechanism for collecting waste gas and primarily filtering the waste gas is arranged on the left side of the bottom plate, and a filtering mechanism for thoroughly filtering and discharging the waste gas is arranged on the right side of the bottom plate. According to the waste gas treatment device for the injection molding machine, waste gas of the injection molding machine is introduced into the gas inlet box through the gas inlet mechanism, impurities in the waste gas are screened out through the first filter screen and the second filter screen, and the effects of collecting the waste gas and primarily filtering the waste gas are achieved; waste gas is discharged after being thoroughly filtered through the first filtering assembly, the second filtering assembly and the third filtering assembly in sequence, when reaction liquid in the third filtering box is polluted, the reaction liquid is discharged into the second filtering box, and meanwhile the reaction liquid in the second filtering box is discharged into the first filtering box. The effects of thoroughly purifying the waste gas, fully utilizing the reaction liquid and saving the cost are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an exhaust gas treatment mechanism of an injection molding machine. Background Art

[0002] The injection molding machine is processed by injection molding. The completely molten plastic material is stirred by a screw at a certain temperature and injected into the mold cavity with high pressure. After the plastic material is cooled and solidified, a molded product is obtained. This method is suitable for mass production of parts with complex shapes. The injection molding machine will produce waste gas during operation, mainly from the combustion waste gas of the molten plastic and the heater. These waste gases contain some toxic and harmful substances, such as volatile organic compounds, formaldehyde, benzene and carbon dioxide. In order to prevent these waste gases from causing harm to the human body, the existing waste gas treatment mechanism usually uses filter liquid and activated carbon to purify the waste gas, but the existing equipment The utilization rate of the filtrate and activated carbon is not high, resulting in a high cost for waste gas treatment. For example, a waste gas treatment mechanism for an injection molding machine is recorded in a patent with patent announcement number CN219682156U. In the recorded scheme, the waste gas first passes through a first filter and a second filter to remove impurities, and then is pumped into an aeration pipe by an air pump, and finally is discharged through a stirring rod with a one-way valve on the surface, so that the waste gas is mixed with the reaction liquid to remove harmful substances, and finally the gas is discharged through a third filter, a waterproof breathable membrane and an activated carbon adsorption plate. However, the waste gas treatment mechanism does not utilize the reaction liquid well during wastewater treatment, which increases the cost of waste gas treatment.

[0003] Based on this, a waste gas treatment mechanism for an injection molding machine is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0004] The utility model aims to provide a waste gas treatment mechanism for an injection molding machine, so as to solve the problem that the existing waste gas treatment mechanism has a low utilization rate of reaction liquid during wastewater treatment, thereby increasing the waste gas treatment cost.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An exhaust gas treatment mechanism for an injection molding machine comprises a base plate, an air intake mechanism for collecting exhaust gas and performing preliminary filtering is provided on the left side of the base plate, a filter mechanism for thoroughly filtering and discharging the exhaust gas is provided on the right side of the base plate, a first air pump connecting the air intake mechanism and the filter mechanism is provided on the upper side of the base plate, the air intake mechanism comprises an air intake box, an air intake pipe, a first filter screen, a second filter screen and an air outlet, the air intake box is arranged on the left side of the base plate, an air intake pipe connected to the exhaust port of the injection molding machine is provided on the upper side of the air intake box, a first filter screen and a second filter screen are provided in sequence inside the air intake box from top to bottom, and an air outlet connected to an input end of the first air pump is provided on the lower side of the air intake box.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional scheme: the filtering mechanism includes a first filter component, a second filter component, a third filter component, a drain pipe, a first valve, a first support rod, a second air pump, a first connecting pipe, a second valve, a second support rod, a third air pump, a second connecting pipe and a third valve. A drain pipe for discharging the internal reaction liquid is provided on the right side of the first filter component, a first valve is provided on the upper side of the drain pipe, the upper side of the first filter component is connected to the second filter component through the first support rod, a second air pump is provided on the upper side of the first filter component, a first connecting pipe is provided between the first filter component and the second filter component, a second valve is provided on the first connecting pipe, the upper side of the second filter component is connected to the third filter component through the second support rod, a third air pump is provided on the upper side of the second filter component, a second connecting pipe is provided between the third filter component and the second filter component, and a third valve is provided on the second connecting pipe.

[0009] In an optional solution: the first filter component includes a first filter box, a first air pipe and a one-way air supply component, the output end of the first air pump is connected to a plurality of first air pipes through a diversion pipe, a plurality of one-way air supply components are provided on the upper side of the first air pipe, and the input end of the second air pump is connected to the first filter box.

[0010] In an optional solution: the second filter component includes a second filter box and a second air pipe, the output end of the second air pump is connected to several second air pipes through a diversion pipe, several one-way air supply components are provided on the upper side of the second air pipe, and the upper end of the second filter box is connected to the input end of the third air pump.

[0011] In an optional scheme: the third filter component includes a third filter box, a third air pipe, an activated carbon adsorption plate, a waterproof breathable membrane, a third filter net, an exhaust pipe, a liquid filling port, an observation window and a color contrast strip; the output end of the third air pump is connected to a plurality of third air pipes through a shunt pipe; a plurality of one-way air supply components are provided at the upper end of the third air pipe; an activated carbon adsorption plate, a waterproof breathable membrane and a third filter net are provided inside the third filter box from top to bottom; an exhaust pipe is provided on the upper side of the third filter box; a liquid filling port is provided on one side of the upper end of the third filter box; an observation window for observing the color of the filtered liquid inside the third filter box is provided on the right side of the third filter box; a color contrast strip is provided on the right side of the observation window.

[0012] In an optional scheme: the one-way gas transmission component includes a valve housing, a valve seat, a connecting rod, a limit seat, a steel ball, an air inlet hole, and an air outlet hole. A valve seat is provided inside the valve housing, a plurality of connecting rods are provided on the right side of the valve seat, a limit seat is provided on the right side of the connecting rod, a steel ball slides inside the valve seat, an air inlet hole is provided on the left side of the valve housing, and an air outlet hole is provided on the right side of the valve housing.

[0013] In an optional solution: the air outlet of the one-way air delivery component is vertically upward.

[0014] In an optional solution, the air outlet is submerged by the reaction liquid in the first filter box, the second filter box and the third filter box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model provides an air intake mechanism to introduce the waste gas of the injection molding machine into the air intake box through the air intake pipe, and screens out impurities in the waste gas through the first filter screen and the second filter screen, thereby achieving the effect of collecting the waste gas and performing preliminary filtration.

[0017] 2. The utility model sets a filtering mechanism, and the exhaust gas passes through the first filter component, the second filter component and the third filter component in sequence to thoroughly filter the exhaust gas and then discharge it. When the reaction liquid in the third filter box is contaminated, it is discharged to the second filter box, and the reaction liquid in the second filter box is discharged into the first filter box at the same time, thereby achieving the effect of thoroughly purifying the exhaust gas and making full use of the reaction liquid to save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the air intake mechanism of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the filtering mechanism of the utility model.

[0021] Figure 4 It is a schematic diagram of the internal structure of the filter mechanism of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the one-way gas transmission component of the utility model.

[0023] Figure 6 It is a schematic diagram of the internal structure of the one-way gas transmission component of the utility model.

[0024] Notes on reference numerals: 100, bottom plate; 101, first air pump; 200, air intake mechanism; 201, air intake box; 202, air intake pipe; 203, first filter screen; 204, second filter screen; 205, air outlet; 300, filter mechanism; 301, drain pipe; 302, first valve; 303, first support rod; 304, second air pump; 305, first connecting pipe; 306, second valve; 307, second support rod; 308, third air pump; 309, second connecting pipe; 310, third valve; 400, first filter assembly; 401, first filter box; 4 02, first gas pipeline; 500, second filter assembly; 501, second filter box; 502, second gas pipeline; 600, third filter assembly; 601, third filter box; 602, third gas pipeline; 603, activated carbon adsorption plate; 604, waterproof breathable membrane; 605, third filter screen; 606, exhaust pipe; 607, liquid filling port; 608, observation window; 609, color contrast strip; 700, one-way gas transmission assembly; 701, valve housing; 702, valve seat; 703, connecting rod; 704, limit seat; 705, steel ball; 706, air inlet; 707, air outlet. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Example 1

[0027] In one embodiment, Figure 1-Figure 6 As shown, an exhaust gas treatment mechanism of an injection molding machine includes a bottom plate 100, an air intake mechanism 200 for collecting and preliminarily filtering exhaust gas is provided on the left side of the bottom plate 100, a filtering mechanism 300 for thoroughly filtering and discharging the exhaust gas is provided on the right side of the bottom plate 100, a first air pump 101 connecting the air intake mechanism 200 and the filtering mechanism 300 is provided on the upper side of the bottom plate 100, the air intake mechanism 200 includes an air intake box 201, an air intake pipe 202, a first filter screen 203, a second filter screen 204 and an air outlet 205, the air intake box 201 is arranged on the left side of the bottom plate 100, and the upper side of the air intake box 201 is provided with a first air pump 101 connecting the air intake mechanism 200 and the filtering mechanism 300. An air intake pipe 202 connected to the exhaust port of the injection molding machine is provided, and a first filter screen 203 and a second filter screen 204 are provided inside the air intake box 201 from top to bottom in sequence, and an air outlet 205 connected to the input end of the first air pump 101 is provided on the lower side of the air intake box 201. When in use, the waste gas of the injection molding machine is introduced into the air intake mechanism 200, and the waste gas enters the air intake box 201 through the air intake pipe 202. The waste gas passes through the first filter plate 203 and the second filter plate 204 in sequence to filter impurities inside the waste gas, and the first air pump 101 is used to input the waste gas into the filter mechanism 300, and the waste gas is discharged after being thoroughly filtered inside the filter mechanism 300.

[0028] In one embodiment, Figure 3 As shown, the filtering mechanism 300 includes a first filtering component 400, a second filtering component 500, a third filtering component 600, a drain pipe 301, a first valve 302, a first supporting rod 303, a second air pump 304, a first connecting pipe 305, a second valve 306, a second supporting rod 307, a third air pump 308, a second connecting pipe 309 and a third valve 310. The right side of the first filtering component 400 is provided with a drain pipe 301 for discharging the internal reaction liquid, the upper side of the drain pipe 301 is provided with a first valve 302, the upper side of the first filtering component 400 is connected to the second filtering component 500 through the first supporting rod 303, the upper side of the first filtering component 400 is provided with a second air pump 304, and the first filtering component A first connecting pipe 305 is provided between 400 and the second filter component 500, a second valve 306 is provided on the first connecting pipe 305, the upper side of the second filter component 500 is connected to the third filter component 600 through a second support rod 307, a third air pump 308 is provided on the upper side of the second filter component 500, a second connecting pipe 309 is provided between the third filter component 600 and the second filter component 500, a third valve 310 is provided on the second connecting pipe 309, when in use, the exhaust gas is filtered for the first time inside the first filter component 400, and then transported to the second filter component 500 by the second air pump 304 for the second filtration, and finally transported to the third filter component 600 by the third air pump 308 for the third filtration.

[0029] In one embodiment, Figure 3 and Figure 4 As shown, the first filter component 400 includes a first filter box 401, a first air pipe 402 and a one-way air supply component 700. The output end of the first air pump 101 is connected to a plurality of first air pipes 402 via a diverter pipe. A plurality of one-way air supply components 700 are provided on the upper side of the first air pipe 402. The input end of the second air pump 304 is connected to the first filter box 401. When in use, the exhaust gas enters the first air pipe 402 and is discharged from the one-way air supply component 700, and reacts with the reaction liquid inside the first filter box 401.

[0030] In one embodiment, Figure 3 and Figure 4As shown, the second filter component 500 includes a second filter box 501 and a second air pipe 502. The output end of the second air pump 304 is connected to a plurality of second air pipes 502 via a shunt pipe. A plurality of one-way air supply components 700 are provided on the upper side of the second air pipe 502. The upper end of the second filter box 501 is connected to the input end of the third air pump 308. When in use, the second air pump 304 transports the exhaust gas inside the first filter box 401 to the second air pipe 502, and discharges it from the one-way air supply component 700 to react with the reaction liquid inside the second filter box 501.

[0031] In one embodiment, Figure 3 and Figure 4 As shown, the third filter assembly 600 includes a third filter box 601, a third air pipe 602, an activated carbon adsorption plate 603, a waterproof breathable membrane 604, a third filter screen 605, an exhaust pipe 606, a liquid filling port 607, an observation window 608 and a color contrast strip 609. The output end of the third air pump 308 is connected to a plurality of third air pipes 602 through a shunt pipe. The upper end of the third air pipe 602 is provided with a plurality of one-way air delivery assemblies 700. The inside of the third filter box 601 is provided with an activated carbon adsorption plate 603, a waterproof breathable membrane 604 and a third filter screen 605 in sequence from top to bottom. An exhaust pipe 606 is provided on the upper side of the third filter box 601. A liquid filling port 607 is provided on one side of the upper end of the third filter box 601, an observation window 608 for observing the color of the filtered liquid inside the third filter box 601 is provided on the right side of the third filter box 601, and a color contrast bar 609 is provided on the right side of the observation window 608. When in use, the third air pump 308 transports the exhaust gas inside the second filter box 501 to the third air pipe 602 and discharges it from the one-way air supply component 700, reacts with the reaction liquid inside the third filter box 601, and then the gas rises and passes through the third filter net 605, the waterproof breathable membrane 604 and the activated carbon adsorption plate 603 in turn to completely purify the exhaust gas, and finally is discharged through the exhaust pipe 606.

[0032] Example 2

[0033] In one embodiment, Figure 5 and Figure 6As shown, the one-way gas delivery assembly 700 includes a valve housing 701, a valve seat 702, a connecting rod 703, a limit seat 704, a steel ball 705, an air inlet 706, and an air outlet 707. A valve seat 702 is provided inside the valve housing 701, a plurality of connecting rods 703 are provided on the right side of the valve seat 702, a limit seat 704 is provided on the right side of the connecting rod 703, a steel ball 705 slides inside the valve seat 702, and an air inlet is provided on the left side of the valve housing 701. 706, an air outlet 707 is provided on the right side of the valve housing 701. When in use, gas enters the valve housing 701 from the air inlet 706, and then enters the valve seat 702 from the valve housing 701. The high-pressure gas pushes the steel ball 705 to move upward to the limit seat 704, and the high-pressure gas flows out from between the connecting rods 703, and finally flows into the fermentation tank 101 through the air outlet 707. When no gas flows in, the steel ball moves downward under the action of gravity to block the hole at the bottom of the valve seat 702 to prevent backflow.

[0034] The above embodiment discloses an exhaust gas treatment mechanism of an injection molding machine. When in use, the exhaust gas enters the air intake box 201 through the air intake pipe 202, and the exhaust gas passes through the first filter plate 203 and the second filter plate 204 in turn to filter the impurities inside the exhaust gas. The first air pump 101 transports the exhaust gas inside the air intake box 201 to the first air delivery pipe 402 and discharges it from the one-way air delivery component 700, reacting with the reaction liquid inside the first filter box 401. The second air pump 304 transports the exhaust gas inside the first filter box 401 to the second air delivery pipe 502 and discharges it from the one-way air delivery component 700, reacting with the reaction liquid inside the second filter box 501. The third air pump 308 transports the exhaust gas inside the second filter box 501 to the third air delivery pipe 602 and discharges it from the one-way air delivery component 700, reacting with the reaction liquid inside the third filter box 601, and then the exhaust gas The exhaust gas rises and passes through the third filter screen 605, the waterproof breathable membrane 604 and the activated carbon adsorption plate 603 in turn to completely purify the exhaust gas, and is finally discharged through the exhaust pipe 606. The color of the reaction liquid is checked through the observation window 608 and compared with the color comparison strip 609. When the color of the reaction liquid changes, the reaction liquid is replaced, the first valve 302 is opened to discharge the reaction liquid in the first filter box 401 through the drain pipe 301, and then the first valve 302 is closed and the second valve 310 is opened to discharge the reaction liquid in the second filter box 501 into the first filter box 401 through the first connecting pipe 305, and then the second valve 306 is closed and the third valve 310 is opened to discharge the reaction liquid in the third filter box 601 into the second filter box 501 through the second connecting pipe, and the third valve is closed, and clean filtrate is added to the third filter box 601 through the liquid filling port 607.

[0035] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An exhaust gas treatment mechanism for an injection molding machine, comprising a bottom plate (100), characterized in that: An air intake mechanism (200) for collecting and preliminarily filtering the waste gas is provided on the left side of the bottom plate (100), a filtering mechanism (300) for thoroughly filtering and discharging the waste gas is provided on the right side of the bottom plate (100), a first air pump (101) for connecting the air intake mechanism (200) and the filtering mechanism (300) is provided on the upper side of the bottom plate (100), and the air intake mechanism (200) comprises an air intake box (201), an air intake pipe (202), a first filtering screen (203), and a filter (304). ), a second filter (204) and an air outlet (205), the air intake box (201) is arranged on the left side of the bottom plate (100), an air intake pipe (202) connected to the exhaust port of the injection molding machine is arranged on the upper side of the air intake box (201), a first filter (203) and a second filter (204) are arranged in sequence from top to bottom inside the air intake box (201), and an air outlet (205) connected to the input end of the first air pump (101) is arranged on the lower side of the air intake box (201).

2. The waste gas treatment mechanism of an injection molding machine according to claim 1, characterized in that: The filtering mechanism (300) comprises a first filtering assembly (400), a second filtering assembly (500), a third filtering assembly (600), a drain pipe (301), a first valve (302), a first support rod (303), a second air pump (304), a first connecting pipe (305), a second valve (306), a second support rod (307), a third air pump (308), a second connecting pipe (309) and a third valve (310). The first filtering assembly (400) is provided with a drain pipe (301) on the right side thereof for discharging the internal reaction liquid. The drain pipe (301) is provided with a first valve (302) on the upper side thereof. The upper side of the first filtering assembly (400) is connected to the first support rod (303) via a first connecting pipe (305). ) is connected to a second filter component (500), a second air pump (304) is provided on the upper side of the first filter component (400), a first connecting pipe (305) is provided between the first filter component (400) and the second filter component (500), a second valve (306) is provided on the first connecting pipe (305), the upper side of the second filter component (500) is connected to a third filter component (600) through a second support rod (307), a third air pump (308) is provided on the upper side of the second filter component (500), a second connecting pipe (309) is provided between the third filter component (600) and the second filter component (500), and a third valve (310) is provided on the second connecting pipe (309).

3. The waste gas treatment mechanism of an injection molding machine according to claim 2, characterized in that: The first filter assembly (400) comprises a first filter box (401), a first air supply pipe (402) and a one-way air supply assembly (700); the output end of the first air pump (101) is connected to a plurality of first air supply pipes (402) via a shunt pipe; a plurality of one-way air supply assemblies (700) are arranged on the upper side of the first air supply pipe (402); and the input end of the second air pump (304) is connected to the first filter box (401).

4. The waste gas treatment mechanism of an injection molding machine according to claim 2, characterized in that: The second filter assembly (500) comprises a second filter box (501) and a second air pipe (502); the output end of the second air pump (304) is connected to a plurality of second air pipes (502) via a shunt pipe; a plurality of one-way air supply assemblies (700) are provided on the upper side of the second air pipe (502); the upper end of the second filter box (501) is connected to the input end of the third air pump (308).

5. The waste gas treatment mechanism of an injection molding machine according to claim 2, characterized in that: The third filter assembly (600) comprises a third filter box (601), a third air supply pipe (602), an activated carbon adsorption plate (603), a waterproof breathable membrane (604), a third filter screen (605), an exhaust pipe (606), a liquid filling port (607), an observation window (608) and a color contrast strip (609). The output end of the third air pump (308) is connected to a plurality of third air supply pipes (602) via a shunt pipe. The upper end of the third air supply pipe (602) is provided with a plurality of one-way air supply assemblies (700). The third filter box An activated carbon adsorption plate (603), a waterproof breathable membrane (604) and a third filter screen (605) are arranged in sequence from top to bottom inside the filter box (601); an exhaust pipe (606) is arranged on the upper side of the third filter box (601); a liquid filling port (607) is arranged on one side of the upper end of the third filter box (601); an observation window (608) for observing the color of the filtered liquid inside the third filter box (601) is arranged on the right side of the third filter box (601); and a color contrast strip (609) is arranged on the right side of the observation window (608).

6. The waste gas treatment mechanism of an injection molding machine according to claim 5, characterized in that: The one-way gas transmission component (700) comprises a valve housing (701), a valve seat (702), a connecting rod (703), a limit seat (704), a steel ball (705), an air inlet hole (706), and an air outlet hole (707). A valve seat (702) is provided inside the valve housing (701), a plurality of connecting rods (703) are provided on the right side of the valve seat (702), a limit seat (704) is provided on the right side of the connecting rod (703), a steel ball (705) slides inside the valve seat (702), an air inlet hole (706) is provided on the left side of the valve housing (701), and an air outlet hole (707) is provided on the right side of the valve housing (701).

7. The waste gas treatment mechanism of an injection molding machine according to claim 6, characterized in that: The gas outlet hole (707) of the one-way gas delivery component (700) is vertically upward.

8. The waste gas treatment mechanism of an injection molding machine according to claim 7, characterized in that: The air outlet (707) is submerged in the reaction liquid in the first filter box (401), the second filter box (501) and the third filter box (601).

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