Injection molding machine protection device for injection molding manufacture
By introducing cooling and filtration components into the exhaust system of the injection molding machine, the problems of high-temperature gas impact on the equipment and pollutants are solved, achieving gas cooling and purification, protecting the injection molding machine equipment, extending its service life, and improving the working environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO GREIDE MACHINERY CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-06-23
AI Technical Summary
During operation, the high-temperature gases emitted by existing injection molding machines are not cooled, leading to increased ambient temperature, accelerated aging of equipment components, and unfiltered contaminants, which affect the stability and lifespan of the equipment.
The exhaust gas is treated using a cooling component and a filtration component. The cooling component lowers the gas temperature through a semiconductor cooling plate and a water cooling system, while the filtration component removes dust and harmful particles through a filter plate, ensuring that the gas is ultimately discharged cleanly at a low temperature.
It effectively reduces gas temperature, removes contaminants, protects injection molding equipment, reduces aging and wear, and improves the working environment.
Smart Images
Figure CN224391835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machine technology, specifically to a protective device for injection molding machines used in injection molding manufacturing. Background Technology
[0002] An injection molding machine is a key piece of equipment used in the plastics processing industry. It heats plastic raw materials to a molten state and then injects them into a mold under high pressure. After rapid cooling, the desired plastic product is obtained. In the process of using an injection molding machine, it is necessary to heat the plastic raw materials to a molten state and then inject the raw materials into the mold under high pressure to shape them. Therefore, a large amount of hot air is generated inside the injection molding machine when heating and melting the plastic.
[0003] Chinese Patent Publication No. CN223199411U discloses a protective device for an injection molding machine, comprising an injection molding machine body, an injection mold and an exhaust hood inside the injection molding machine body, the exhaust hood being located above the injection mold, an exhaust fan being fixedly mounted on the upper surface of the injection molding machine body, one end of the exhaust fan being fixedly connected to an exhaust pipe, the end of the exhaust pipe away from the exhaust fan passing through the injection molding machine body and communicating with the exhaust hood, and a purification box being mounted on the upper surface of the injection molding machine body, one side of the purification box being connected to the end of the exhaust fan away from the exhaust pipe; In this solution, during injection molding, starting the exhaust fan and controlling the exhaust hood to draw air through the exhaust pipe can draw in hot air containing harmful components emitted from the injection mold and transport it into the purification box for purification, thereby providing a certain degree of protection for the internal structure of the injection molding machine body, reducing the negative impact of harmful hot air on the internal structure of the injection molding machine body, and ensuring the service life of the injection molding machine.
[0004] The aforementioned device uses a purification chamber to adsorb and purify the hot air inside the injection molding machine, thereby protecting the machine. However, the hot air discharged from the purification chamber is not cooled, resulting in a certain temperature in the discharged gas. When multiple injection molding machines operate simultaneously, the discharged gas raises the ambient temperature. Operating the injection molding machine in such an environment accelerates the aging and wear of critical components, potentially leading to malfunctions and compromising the stability of the injection molding process. Utility Model Content
[0005] To address the aforementioned issues, a protective device for injection molding machines is provided. This device uses a cooling component to reduce the gas temperature, preventing the impact of high temperatures on the environment and equipment. The cooled gas then passes through a filter component to remove dust, harmful particles, and other contaminants. Finally, the clean, low-temperature gas is discharged, thus protecting the injection molding machine, reducing the aging and wear of equipment components caused by high temperatures and contaminants, and improving the surrounding working environment.
[0006] To address the problems of existing technologies, this utility model provides a protective device for an injection molding machine used in injection molding manufacturing. The device includes an injection molding machine body, a gas treatment chamber on the top of the machine body, a dust extraction pump inside the treatment chamber, an air intake pipe connected to the input end of the dust extraction pump for drawing in gas, and an air delivery pipe connected to the output end of the dust extraction pump. The treatment chamber also includes a cooling component for cooling the gas and a filtering component for filtering the gas.
[0007] Preferably, the cooling component includes a water storage tank disposed inside the processing chamber, one end of the gas supply pipe is spirally disposed inside the water storage tank and passes through one side of the water storage tank, the processing chamber is provided with a semiconductor refrigeration plate for cooling the water storage tank, and the outer wall of the semiconductor refrigeration plate is provided with heat dissipation fins for dissipating heat from the semiconductor refrigeration plate.
[0008] Preferably, the interior of the processing box is provided with a baffle for isolating airflow, and one end of the air supply pipe passes through the baffle.
[0009] Preferably, a drive motor is provided on the side wall of the partition, and the output shaft of the drive motor is provided with a stirring rod for stirring the water source inside the water storage tank.
[0010] Preferably, the filter assembly includes a rotating seat rotatably disposed inside the processing box, a diamond-shaped bracket is provided on the top of the rotating seat, a filter plate is movably disposed inside the diamond-shaped bracket, and a mounting plate is provided on the top of the filter plate. The mounting plate is fixed to the top of the processing box by bolts.
[0011] Preferably, the inner walls on both sides of the processing box are provided with a retaining frame, and the inside of the retaining frame is provided with a plurality of spring telescopic rods. The telescopic end of the spring telescopic rod is provided with an abutting block that abuts against the filter plate, and one end of the retaining frame is provided with a cleaning brush for cleaning the filter plate.
[0012] Preferably, the mounting plate has a rotating rod inside, the bottom of the rotating rod has a plug-in part, and the top of the rotating seat has a connecting part that works in conjunction with the plug-in part.
[0013] Preferably, the interior of the processing box is equipped with a collection drawer for collecting dust.
[0014] The advantages of this utility model compared to the prior art are:
[0015] 1. The cooling components reduce the gas temperature, preventing the impact of high temperatures on the environment and equipment. The cooled gas then passes through the filtration components to remove dust, harmful particles, and other pollutants. Finally, the clean, low-temperature gas is discharged, protecting the injection molding machine, reducing the aging and wear of equipment parts caused by high temperatures and pollutants, and improving the surrounding working environment.
[0016] 2. When the filter plate needs to be replaced or cleaned, the mounting plate and filter plate can be removed by unscrewing the bolts on the top of the treatment box, which facilitates maintenance and reduces maintenance difficulty. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a protective device for injection molding machines used in injection molding manufacturing.
[0018] Figure 2 This is a schematic diagram of the internal structure of the processing box in a protective device for injection molding machines used in injection molding manufacturing.
[0019] Figure 3 This is a schematic diagram of the cooling component in a protective device for injection molding machines used in injection molding manufacturing.
[0020] Figure 4 This is a schematic diagram of the collection tray in a protective device for injection molding machines used in injection molding manufacturing.
[0021] Figure 5 This is a schematic diagram of the internal structure of a retaining frame in an injection molding machine protection device used in injection molding manufacturing.
[0022] Figure 6 This is a schematic diagram of the structure of a filter plate in a protective device for injection molding machines used in injection molding manufacturing.
[0023] Figure 7 This is a schematic diagram of the connecting part and the insertion part in a protective device for injection molding machines used in injection molding manufacturing.
[0024] The following components are labeled in the diagram: 1. Injection molding machine body; 2. Processing box; 3. Air inlet pipe; 4. Rotating rod; 5. Mounting plate; 6. Collection drawer; 7. Partition; 8. Water storage tank; 9. Semiconductor cooling plate; 10. Heat dissipation fins; 11. Drive motor; 12. Stirring rod; 13. Air supply pipe; 14. Frame; 15. Contact block; 16. Rotating seat; 17. Diamond bracket; 18. Spring telescopic rod; 19. Cleaning brush; 20. Connecting part; 21. Filter plate; 22. Insertion part; 23. Dust pump. Detailed Implementation
[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0026] like Figures 1 to 7 As shown, this utility model provides:
[0027] An injection molding machine protection device for injection molding manufacturing includes an injection molding machine body 1. A treatment box 2 for handling gas is provided on the top of the injection molding machine body 1. A dust suction pump 23 is provided inside the treatment box 2. The input end of the dust suction pump 23 is connected to an air inlet pipe 3 for sucking up gas, and the output end of the dust suction pump 23 is connected to an air delivery pipe 13. The treatment box 2 is also provided with a cooling component for cooling the gas and a filtering component for filtering the gas.
[0028] When the injection molding machine body 1 generates gas containing heat and pollutants during operation, the dust pump 23 is started, and a negative pressure is formed through the air inlet pipe 3 to actively adsorb and extract the harmful gases inside the injection molding machine.
[0029] The adsorbed gas is pressurized by the dust pump 23 and then transported to the inside of the treatment box 2 through the gas delivery pipe 13 to prepare for subsequent cooling and filtration.
[0030] The gas entering the treatment chamber 2 first flows through the cooling component to reduce the gas temperature and avoid the impact of high temperature on the environment and equipment. The cooled gas then passes through the filter component to remove dust, harmful particles and other pollutants. Finally, the clean, low-temperature gas is discharged, which protects the injection molding machine, reduces the aging and wear of equipment parts caused by high temperature and pollutants, and improves the surrounding working environment.
[0031] like Figure 2 and Figure 3 As shown, the cooling component includes a water tank 8 disposed inside the processing chamber 2, one end of the gas supply pipe 13 is spirally disposed inside the water tank 8 and passes through one side of the water tank 8, and a semiconductor cooling plate 9 for cooling the water tank 8 is disposed inside the processing chamber 2, and heat dissipation fins 10 for dissipating heat from the semiconductor cooling plate 9 are disposed on the outer wall of the semiconductor cooling plate 9.
[0032] One end of the gas delivery pipe 13 is spirally wound inside the water storage tank 8. When the high-temperature gas flows through the spiral gas delivery pipe 13, it undergoes preliminary heat exchange with the water in the water storage tank 8. The water absorbs some of the heat from the gas, thus achieving preliminary cooling of the gas.
[0033] The semiconductor cooling plate 9 is activated, and its cooling surface acts directly on the outer wall of the water storage tank 8 to continuously reduce the water temperature, ensuring that the water is always kept at a low temperature, thus ensuring the continuous cooling effect on the high-temperature gas in the gas transmission pipe 13 and preventing the water from absorbing heat and increasing in temperature, thereby reducing the cooling efficiency.
[0034] When the semiconductor cooling plate 9 is working, it generates heat. The heat dissipation fins 10 on its outer wall increase the heat dissipation area and quickly dissipate the heat generated by the semiconductor cooling plate 9 into the air inside the processing box 2. This prevents the semiconductor cooling plate 9 from being damaged due to overheating or reducing its cooling efficiency, and ensures the stable operation of the entire cooling component.
[0035] like Figure 3 As shown, the interior of the processing box 2 is equipped with a baffle 7 for isolating airflow, and one end of the air supply pipe 13 passes through the baffle 7.
[0036] The partition 7 divides the internal space of the processing box 2 into different areas, preventing the gas from flowing randomly in the processing box 2 and improving the overall processing efficiency.
[0037] like Figure 3 As shown, a drive motor 11 is provided on the side wall of the partition 7, and a stirring rod 12 for stirring the water inside the water storage tank 8 is provided on the output shaft of the drive motor 11.
[0038] Start the drive motor 11, whose output shaft drives the stirring rod 12 to rotate inside the water storage tank 8;
[0039] During the rotation of the stirring rod 12, the water in the water storage tank 8 is thoroughly stirred, breaking up the temperature stratification of the water and making the temperature of the entire water uniform.
[0040] The water at a uniform temperature can exchange heat more fully and stably with the high-temperature gas in the gas pipe 13, avoiding local water saturation that would lead to a decrease in cooling efficiency, further improving the gas cooling effect, and ensuring the continuous and stable operation of the cooling components.
[0041] like Figure 2 and Figure 6 As shown, the filter assembly includes a rotating seat 16 rotatably disposed inside the processing box 2. A diamond-shaped bracket 17 is provided on the top of the rotating seat 16. A filter plate 21 is movably disposed inside the diamond-shaped bracket 17. A mounting plate 5 is provided on the top of the filter plate 21. The mounting plate 5 is fixed to the top of the processing box 2 by bolts.
[0042] The filter plate 21 is movably installed inside the rhomboid bracket 17, which is fixed to the top of the rotating seat 16. It is connected to the top of the processing box 2 by bolts through the mounting plate 5, so that the entire filter assembly is stably fixed in the designated filtration area inside the processing box 2, ensuring that the position of the filter assembly is stable and does not shift with the gas flow.
[0043] When the cooled gas flows through the filter plate 21, the filter material of the filter plate 21 intercepts dust, harmful particles, and some harmful gas molecules in the gas, thereby purifying the gas.
[0044] When the filter plate 21 needs to be replaced or cleaned, simply remove the bolts connecting the mounting plate 5 to the top of the treatment box 2 to take out the mounting plate 5 and the filter plate 21, which facilitates maintenance and reduces maintenance difficulty.
[0045] like Figure 5 As shown, both sides of the inner wall of the processing box 2 are provided with a frame 14. The inside of the frame 14 is provided with a plurality of spring telescopic rods 18. The telescopic end of the spring telescopic rod 18 is provided with a contact block 15 that abuts against the filter plate 21. One end of the frame 14 is provided with a cleaning brush 19 for cleaning the filter plate 21.
[0046] The spring telescopic rod 18 has elastic telescopic characteristics. The contact block 15 at its telescopic end is in close contact with the side wall of the filter plate 21. The spring force applies uniform lateral pressure to the filter plate 21, and the filter plate 21 is stably fixed between the diamond bracket 17 and the frame 14, so as to prevent the filter plate 21 from shaking or shifting when the gas flows, and to ensure stable filtration effect.
[0047] When the rotating seat 16 drives the filter plate 21 to rotate, the surface of the filter plate 21 contacts and rubs against the cleaning brush 19 at one end of the frame 14. The cleaning brush 19 brushes off the dust and impurities attached to the surface of the filter plate 21, preventing the filter holes from becoming clogged, extending the service life of the filter plate 21, and ensuring the continuous filtration efficiency of the filter assembly. The brushed-off impurities can fall into the collection tray 6 below for easy cleaning later.
[0048] like Figure 6 and Figure 7 As shown, the mounting plate 5 has a rotating rod 4 inside, the bottom of the rotating rod 4 has a plug-in part 22, and the top of the rotating seat 16 has a connecting part 20 that works in conjunction with the plug-in part 22.
[0049] The insertion part 22 at the bottom of the rotating rod 4 is tightly fitted with the connecting part 20 at the top of the rotating seat 16, so as to transmit the rotational power of the rotating rod 4 to the rotating seat 16.
[0050] The rotating filter plate 21 can fully contact the cleaning brush 19 to achieve thorough cleaning and further ensure filtration efficiency;
[0051] like Figure 4 As shown, the interior of the processing box 2 is equipped with a collection drawer 6 for collecting dust.
[0052] During the operation of the filter assembly, the impurities on the surface of the filter plate 21 brushed off by the cleaning brush 19, as well as the dust that settles after gas filtration, fall into the collection tray 6 below under the action of gravity, realizing the centralized collection of impurities and preventing impurities from accumulating at the bottom of the processing box 2, which would affect the internal environment of the processing box 2 and the operation of other components.
[0053] The above embodiments merely illustrate one or several implementations of an injection molding machine protection device for injection molding manufacturing, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
[0054] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A protective device for an injection molding machine used in injection molding manufacturing, characterized in that, The injection molding machine includes an injection molding machine body (1), and a gas treatment box (2) is provided on the top of the injection molding machine body (1). A dust pump (23) is provided inside the treatment box (2). The input end of the dust pump (23) is connected to an air inlet pipe (3) for drawing in gas, and the output end of the dust pump (23) is connected to an air delivery pipe (13). The treatment box (2) is also provided with a cooling component for cooling the gas and a filtering component for filtering the gas.
2. The injection molding machine protection device for injection molding manufacturing according to claim 1, characterized in that, The cooling component includes a water tank (8) disposed inside the processing box (2), one end of the gas supply pipe (13) is spirally disposed inside the water tank (8) and passes through one side of the water tank (8), the processing box (2) is provided with a semiconductor cooling plate (9) for cooling the water tank (8), and the outer wall of the semiconductor cooling plate (9) is provided with heat dissipation fins (10) for dissipating heat from the semiconductor cooling plate (9).
3. The injection molding machine protection device for injection molding manufacturing according to claim 1, characterized in that, The processing box (2) is equipped with a baffle (7) for isolating airflow, and one end of the gas supply pipe (13) passes through the baffle (7).
4. The injection molding machine protection device for injection molding manufacturing according to claim 3, characterized in that, The partition (7) is provided with a drive motor (11) on its side wall, and the output shaft of the drive motor (11) is provided with a stirring rod (12) for stirring the water source inside the water storage tank (8).
5. A protective device for injection molding machines according to claim 1, characterized in that, The filter assembly includes a rotating seat (16) rotatably disposed inside the processing box (2), a diamond-shaped bracket (17) is provided on the top of the rotating seat (16), a filter plate (21) is movably disposed inside the diamond-shaped bracket (17), and a mounting plate (5) is provided on the top of the filter plate (21). The mounting plate (5) is mounted on the top of the processing box (2) by bolts.
6. A protective device for injection molding machines according to claim 5, characterized in that, Both sides of the processing box (2) are provided with a frame (14). The frame (14) is provided with a plurality of spring telescopic rods (18). The telescopic end of the spring telescopic rod (18) is provided with a contact block (15) that abuts against the filter plate (21). One end of the frame (14) is provided with a cleaning brush (19) for cleaning the filter plate (21).
7. A protective device for injection molding machines according to claim 5, characterized in that, The mounting plate (5) is provided with a rotating rod (4) inside, and a plug-in part (22) is provided at the bottom of the rotating rod (4). The rotating seat (16) is provided with a connecting part (20) that works in conjunction with the plug-in part (22) at the top.
8. A protective device for injection molding machines according to claim 1, characterized in that, The processing box (2) is equipped with a collection drawer (6) for collecting dust.