VOC gas collecting device for injection molding workshop

Abstract

The VOC gas collecting device for the injection molding workshop comprises a purification assembly and an exhaust fan, the exhaust fan is installed on the upper portion of the interior of a frame, and the purification assembly is located in the middle of the interior of the frame; a scraping mechanism is arranged in the frame body, and adsorbed foreign matters below the purification assembly are scraped through the scraping mechanism, so that the periphery of the purification assembly can be kept clean; and an air blowing mechanism is arranged in the purification assembly, the air blowing mechanism blows foreign matters adsorbed on the outer side of the purification assembly, so that the foreign matters fall off better, and the situation that the foreign matters are clamped in the purification assembly in the scraping process of the scraping mechanism is avoided. According to the VOC gas collecting device for the injection molding workshop, foreign matter clamped by the purification assembly can be blown off through blown gas, the situation that the foreign matter below the purification assembly rotates to the upper portion and then falls into the purification assembly is avoided, the situation that the purification effect is affected due to the fact that the density of the purification assembly is increased after the purification assembly is used for a long time is prevented, and the service life of the purification assembly can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of VOC gas collection, in particular to a VOC gas collection device for an injection molding workshop. Background Art

[0002] There are a large number of injection molding machines in the injection molding workshop. The injection molding machines heat-press and melt the plastic particles to form a specified shape. Waste gas will be generated during the melting of the plastic particles, including volatile VOC gas. VOC gas is a toxic gas. In order to ensure the health of the staff, VOC gas needs to be collected and treated to reduce the amount of inhalation by the staff. VOC gas is collected through a special VOC gas collection device.

[0003] For example, in a VOC gas processing and collecting device with publication number CN219251984U, a filter screen and an activated carbon honeycomb plate are fixed inside the collecting box, a fan is fixed on the top of the collecting box, and the air inlet end of the fan is connected and fixed to a side wall of the collecting box through a pipe.

[0004] The gas treatment and collection device can be used to absorb VOC gas, and the gas can be purified by setting the filter and activated carbon honeycomb plate. Since the filter and activated carbon honeycomb are tilted and fixed, the waste generated by the operation of the injection molding machine will be adsorbed on the filter and activated carbon honeycomb during the gas collection process. Since the positions of the filter and activated carbon honeycomb are fixed, although the filter and activated carbon honeycomb make the waste fall by vibration, smaller waste may fall between the filter and the activated carbon honeycomb during the vibration process. Long-term engagement will increase the gap between the filter and the activated carbon honeycomb, affecting the purification effect. Summary of the invention

[0005] The purpose of the present invention is to provide a VOC gas collection device for an injection molding workshop to solve the problem raised by the above-mentioned background technology that smaller waste materials may fall between the filter screen and the activated carbon honeycomb during the vibration process in the current market, and the long-term engagement will cause the gap between the filter screen and the activated carbon honeycomb to become larger, affecting the purification effect.

[0006] To achieve the above object, the present invention provides the following technical solution: a VOC gas collection device for an injection molding workshop, comprising a purification component and an exhaust fan, the exhaust fan being installed above the interior of a frame, and the purification component being located in the middle of the interior of the frame; The frame is also provided with a scraping mechanism inside, through which the foreign matter adsorbed under the purification component is scraped, so that the surroundings of the purification component can be kept clean; An air blowing mechanism is provided inside the purification component, which blows foreign matter adsorbed on the outside of the purification component to make the foreign matter fall off better and prevent the scraping mechanism from causing the foreign matter to be stuck inside the purification component during scraping.

[0007] Preferably, the scraping mechanism includes a scraper, a fixing rod and a mounting rod. The scraper is installed on the left and right sides of the frame. The inner side of the scraper fits with the outer side of the purification component. The mounting rod is installed on the left end of the purification component. The fixing rod is fitted through the inside of the mounting rod.

[0008] Preferably, the right end of the purification component is rotatably connected to a mounting plate, the mounting plate is engaged with the end of the frame, and the length of the purification component is equal to the internal depth of the frame.

[0009] Preferably, electrified magnets are installed on both left and right sides of the frame, and guide plates are rotatably connected to the left and right sides of the frame, and the curvature of the guide plates is the same as that of the electrified magnets.

[0010] Preferably, the guide plate is made of iron, and the electrified magnet is electrically connected to the motor.

[0011] Preferably, a motor is installed at the inner left end of the frame, a fixing rod is installed at the output end of the motor, and a mounting rod is sleeved on the outside of the fixing rod. The mounting rod and the fixing rod are both prismatic structures. A bidirectional threaded rod is installed at one end of the mounting rod away from the fixing rod, and the right end of the bidirectional threaded rod is rotatably connected to the fixing plate.

[0012] Preferably, the blowing mechanism includes an elastic airbag, an air pipe and an extrusion plate, the extrusion plate is threadedly connected to the bidirectional threaded rod, the internal rotation of the purification component is connected to a fixed plate, an elastic airbag is arranged on the side of the fixed plate far from the extrusion plate, and the air pipe is installed on the elastic airbag.

[0013] Preferably, the end of the air pipe faces the electrified magnet, and the contact point between the scraper and the lower part of the purification component is located above the guide plate.

[0014] Preferably, a mounting column is installed on the extrusion plate, the right end of the mounting column is engaged with the frame, and the mounting column passes through the fixing plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with an air blowing mechanism, which includes an elastic air bag, an air pipe and an extrusion plate. The extrusion plate squeezes the elastic air bag so that the gas inside the elastic air bag blows the scraping position. The blown gas can blow away the foreign matter stuck in the purification component, thereby preventing the foreign matter below the purification component from rotating to the top and then falling into the purification component, preventing the purification component from becoming denser after long-term use and affecting the purification effect, and extending the service life of the purification component.

[0016] 2. The present invention is provided with a scraper and a purification component, and the outer side of the purification component is in contact with the scraper. When the purification component rotates, the scraper scrapes off foreign matter adsorbed on its lower surface, and the scraped foreign matter falls on the guide plate, which collects the foreign matter. When the equipment in the injection molding workshop is not running, the guide plate rotates downward, and the foreign matter accumulated on the guide plate falls off, which is convenient for collecting the foreign matter.

[0017] 3. The present invention is provided with a mounting rod and a fixing rod, and the mounting rod is sleeved on the outside of the fixing rod. Both the mounting rod and the fixing rod are arranged in a prismatic structure. The fixing rod rotates to make the mounting rod and the bidirectional threaded rod rotate synchronously. When installing the purification component, the purification component can be directly pulled outward to realize its disassembly. The installation and disassembly are relatively simple, and quick installation can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the guide plate of the present invention after being sucked; Figure 4 This is a schematic diagram of the rear view structure of the purification component of the present invention; Figure 5 This is a schematic diagram of the main cross-sectional structure of the purification component of the present invention; Figure 6 It is a schematic diagram of the main cross-sectional structure of the scraper of the present invention.

[0019] In the figure: 1. frame; 2. mounting plate; 3. exhaust fan; 4. purification component; 5. scraper; 6. energized magnet; 7. guide plate; 8. mounting rod; 9. fixing rod; 10. bidirectional threaded rod; 11. motor; 12. extrusion plate; 13. fixing plate; 14. elastic airbag; 15. mounting column; 16. air pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 6 , the present invention provides a technical solution: A VOC gas collection device for an injection molding workshop comprises a purification component 4 and an exhaust fan 3, wherein the exhaust fan 3 is mounted on the upper part of a frame 1, and the purification component 4 is located in the middle of the frame 1; the frame 1 is also provided with a scraping mechanism inside, through which foreign matter adsorbed below the purification component 4 is scraped, so that the surroundings of the purification component 4 can be kept clean; the purification component 4 is provided with an air blowing mechanism inside, and the air blowing mechanism blows foreign matter adsorbed on the outer side of the purification component 4, so that the foreign matter falls off better, and avoids the foreign matter being stuck inside the purification component 4 during the scraping process by the scraping mechanism.

[0022] The present invention uses a scraping mechanism and a blowing mechanism to make foreign objects fall down. The scraping mechanism and the blowing mechanism cooperate with each other to blow out foreign objects stuck in the purification component 4. The gas collecting device is located above the injection molding machine. When the injection molding machine is running, the exhaust fan 3 is turned on. The exhaust fan 3 sucks the waste gas generated by the operation of the injection molding machine upward. After the waste gas is sucked upward, it passes through the purification component 4. The purification component 4 purifies the waste gas. The purified gas is discharged through the air outlet of the exhaust fan 3, which can reduce the amount of waste gas inhaled by the staff and ensure the safety of the staff's work. The suction force of the exhaust fan 3 can make smaller waste materials adsorbed on the purification component 4.

[0023] In order to further understand the scraping mechanism, the specific structure of the scraping mechanism is disclosed: The scraping mechanism includes a scraper 5, a fixing rod 9 and a mounting rod 8. The scraper 5 is installed on the left and right sides of the frame 1. The inner side of the scraper 5 is in contact with the outer side of the purification component 4. The mounting rod 8 is installed on the left end of the purification component 4. The fixing rod 9 is inserted into the inner side of the mounting rod 8. The frame 1 has an electrically powered magnet 6 installed on both the left and right sides. The frame 1 has a guide plate 7 rotatably connected to the left and right sides. The curvature of the guide plate 7 is the same as that of the electrically powered magnet 6. The guide plate 7 is made of iron. The electrically powered magnet 6 is electrically connected to the motor 11.

[0024] The motor 11 is powered on, and the motor 11 rotates counterclockwise. Since the motor 11 is electrically connected to the electrified magnet 6, the electrified magnet 6 immediately generates magnetic force after the motor 11 is powered on, and the magnetic force causes the guide plate 7 to rotate upward. The guide plate 7 rotates upward until the guide plate 7 rotates to be attracted between the electrified magnet 6. The guide plate 7 is located at the lower end of the contact position between the purification component 4 and the scraper 5. The motor 11 causes the fixing rod 9 to rotate. Since the fixing rod 9 and the mounting rod 8 fit each other, the fixing rod 9 rotates and drives the mounting rod 8 to rotate synchronously. The rotation of the mounting rod 8 drives the bidirectional threaded rod 10 and the purification component 4 to rotate synchronously, and the suction force of the exhaust fan 3 The foreign matter is adhered to the lower end of the purification component 4. During the rotation of the purification component 4, the lower end of the scraper 5 scrapes the foreign matter adhered to the purification component 4, and the foreign matter falls downward due to its own weight. The foreign matter falls onto the guide plate 7, and the guide plate 7 collects the foreign matter. When the injection molding machine inside the injection molding workshop is not running, a collection frame is placed at the lower end of the gas collection device, and then the power supply of the motor 11 is disconnected, and the power supply of the energized magnet 6 is immediately disconnected. At this time, the magnetic force of the energized magnet 6 immediately disappears and no longer attracts the guide plate 7. The guide plate 7 rotates downward due to its own gravity, and the foreign matter on the guide plate 7 falls down and enters the collection frame.

[0025] In order to further understand the blowing mechanism, the specific structure of the blowing mechanism is disclosed: The right end of the purification component 4 is rotatably connected to the mounting plate 2, which is engaged with the end of the frame 1. The length of the purification component 4 is equal to the internal depth of the frame 1. A motor 11 is installed at the left end of the interior of the frame 1. A fixing rod 9 is installed at the output end of the motor 11, and a mounting rod 8 is sleeved on the outside of the fixing rod 9. The mounting rod 8 and the fixing rod 9 are both arranged in a prismatic structure. A bidirectional threaded rod 10 is installed at one end of the mounting rod 8 away from the fixing rod 9. The right end of the bidirectional threaded rod 10 is rotatably connected to the fixing plate 13. The blowing mechanism includes an elastic airbag 14, an air pipe 16 and an extrusion plate 12. The extrusion plate 12 is threadedly connected to the bidirectional threaded rod 10. The interior of the purification component 4 is rotatably connected to the fixing plate 13. An elastic airbag 14 is arranged on the side of the fixing plate 13 far from the extrusion plate 12, and an air pipe 16 is installed on the elastic airbag 14.

[0026] The bidirectional threaded rod 10 rotates to move the extrusion plate 12 left and right. When the extrusion plate 12 moves to the right to squeeze the elastic airbag 14, the extrusion plate 12 causes the gas inside the elastic airbag 14 to be ejected through the air pipe 16. The ejected air pressure increases, and the gas blows the waste at the contact position between the purification component 4 and the scraper 5. The gas blows from the inside to the outside to prevent the waste from being stuck inside the purification component 4, which increases the gap of the purification component 4 and affects the filtering effect of the purification component 4.

[0027] The air pipe 16 faces the end of the energized magnet 6, the contact point between the scraper 5 and the lower part of the purification component 4 is located above the guide plate 7, and a mounting column 15 is installed on the extrusion plate 12. The right end of the mounting column 15 is engaged with the frame 1, and the mounting column 15 passes through the fixing plate 13.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A VOC gas collection device for an injection molding workshop, comprising a purification component (4) and an exhaust fan (3), wherein the exhaust fan (3) is installed at the upper part of the interior of a frame (1), and the purification component (4) is located at the middle position of the interior of the frame (1); It is characterized in that Also includes: A scraping mechanism is provided inside the frame (1), and the scraping mechanism is used to scrape foreign matter adsorbed below the purification component (4), so that the surroundings of the purification component (4) can be kept clean; An air blowing mechanism is provided inside the purification component (4), and the air blowing mechanism blows foreign matter adsorbed on the outside of the purification component (4) so ​​that the foreign matter falls off more easily, thereby preventing the scraping mechanism from causing the foreign matter to be stuck inside the purification component (4) during the scraping process.

2. A VOC gas collection device for an injection molding workshop according to claim 1, characterized in that: The scraping mechanism comprises a scraper (5), a fixing rod (9) and a mounting rod (8); the scraper (5) is mounted on the left and right sides of the frame (1); the inner side of the scraper (5) is in contact with the outer side of the purification component (4); the mounting rod (8) is mounted on the left end of the purification component (4); and the fixing rod (9) is in contact with and penetrates the interior of the mounting rod (8).

3. The VOC gas collection device for injection molding workshop according to claim 1, characterized in that: The right end of the purification component (4) is rotatably connected to a mounting plate (2), the mounting plate (2) is engaged with the end of the frame (1), and the length of the purification component (4) is equal to the internal depth of the frame (1).

4. The VOC gas collection device for injection molding workshop according to claim 1, characterized in that: The frame (1) is provided with an electrified magnet (6) installed on both left and right sides thereof. The frame (1) is rotatably connected with a guide plate (7) on both left and right sides thereof. The curvature of the guide plate (7) is the same as that of the electrified magnet (6).

5. A VOC gas collection device for injection molding workshop according to claim 4, characterized in that: The guide plate (7) is made of iron, and the electrified magnet (6) is electrically connected to the motor (11).

6. A VOC gas collection device for injection molding workshop according to claim 1, characterized in that: A motor (11) is installed at the left end of the interior of the frame (1), a fixing rod (9) is installed at the output end of the motor (11), and a mounting rod (8) is sleeved on the outside of the fixing rod (9), the mounting rod (8) and the fixing rod (9) are both arranged in a prismatic structure, a bidirectional threaded rod (10) is installed at one end of the mounting rod (8) away from the fixing rod (9), and the right end of the bidirectional threaded rod (10) is rotatably connected to the fixing plate (13).

7. The VOC gas collection device for injection molding workshop according to claim 1, characterized in that: The blowing mechanism comprises an elastic airbag (14), an air pipe (16) and an extrusion plate (12); the extrusion plate (12) is threadedly connected to the bidirectional threaded rod (10); a fixing plate (13) is rotatably connected inside the purification component (4); an elastic airbag (14) is arranged on a side of the fixing plate (13) far from the extrusion plate (12); and the air pipe (16) is mounted on the elastic airbag (14).

8. A VOC gas collection device for injection molding workshop according to claim 7, characterized in that: The air pipe (16) faces the end of the electrified magnet (6), and the contact point between the scraper (5) and the lower part of the purification component (4) is located above the guide plate (7).

9. The VOC gas collection device for injection molding workshop according to claim 7, characterized in that: A mounting column (15) is mounted on the extrusion plate (12), the right end of the mounting column (15) is engaged with the frame (1), and the mounting column (15) passes through the fixing plate (13).

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