Waste gas collecting device of injection molding machine

Abstract

The utility model discloses an injection molding machine waste gas collecting device which comprises a purifying box, clamping frames are fixedly arranged on the inner wall of the purifying box and located on the front side and the rear side, a coarse filter screen and a fine filter screen are arranged in the clamping frames in a sliding mode respectively, and round holes are formed in the outer walls of the clamping frames. Round holes are formed in the outer wall of the coarse filter screen and the outer wall of the fine filter screen, bolts are slidably arranged in the round holes, insertion holes are correspondingly formed in the outer wall of the coarse filter screen and the outer wall of the fine filter screen, the bolts are located in the insertion holes, pull blocks are fixedly arranged at the other ends of the bolts, and springs are fixedly arranged between the pull blocks and the clamping frames. And a user can pull a pull block to enable one end of a plug pin to be separated from an insertion hole, so that a coarse filter screen and a fine filter screen are detached and conveniently cleaned and replaced, and impurities and dust in waste gas can be filtered through the coarse filter screen and the fine filter screen, so that later collection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, and more specifically, it relates to an exhaust gas collection device for an injection molding machine. Background Art

[0002] An injection molding machine is also known as an injection molding machine or an injection machine. It is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies, and is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. However, most traditional exhaust gas collection devices are not convenient for disassembling the filter screen. After long-term use, a large amount of impurities are easily adhered to the surface of the filter screen, affecting the purification effect of the exhaust gas; and the treatment method is relatively single, only filtering through the filter screen, resulting in poor purification effect of the exhaust gas. During later collection, a large amount of dust is easily accumulated inside the collection box. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the problems existing in the prior art, the utility model provides an exhaust gas collection device for an injection molding machine to solve the technical problem that most traditional exhaust gas collection devices are not convenient for disassembling the filter screen, and after long-term use, a large amount of impurities are easily adhered to the surface of the filter screen, affecting the purification effect of the exhaust gas mentioned in the background art.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the utility model provides the following technical solution: An exhaust gas collection device for an injection molding machine includes a purification box. On the inner walls of the front and back sides of the purification box, clamping frames are fixedly provided. Inside the clamping frames, a coarse filter screen and a fine filter screen are respectively slidably arranged. Circular holes are respectively formed on the outer walls of the clamping frames. Inside the circular holes, bolts are slidably arranged. On the outer walls of the coarse filter screen and the fine filter screen, insertion holes are correspondingly formed. The bolts are all located inside the insertion holes. At the other ends of the bolts, pulling blocks are fixedly provided. Springs are fixedly provided between the pulling blocks and the clamping frames. On the lower end surface of the purification box at four corners, support columns are provided. At the lower end surfaces of the support columns, water tanks are fixedly provided.

[0007] The utility model is further arranged such that a connecting pipe is fixedly provided on one side surface of the purification box. The other end of the connecting pipe extends to the bottom of the water tank. A negative pressure blower is provided on the connecting pipe. A water injection pipe is provided on the outer wall of the water tank. At the other end of the water injection pipe, a threaded cover is provided. The threaded cover is threadedly connected to the water injection pipe, facilitating further treatment of the exhaust gas.

[0008] The utility model is further configured such that a receiving seat is fixedly provided on the lower end surface of the water tank, a collecting box is provided on the upper end surface of the receiving seat and located on one side of the water tank, a collecting pipe is fixedly provided on the upper end surface of the water tank, and the other end of the collecting pipe is connected to the collecting box to facilitate the collection of exhaust gas.

[0009] The utility model is further configured such that threaded columns are fixedly provided on the upper end surface of the purification box and on the four corners, a sealing cover is provided on the upper end of the purification box, and avoidance holes are correspondingly opened on the upper end surface of the sealing cover, the threaded columns are all located inside the avoidance holes, and clamping nuts are provided on the threaded columns, and the clamping nuts are threadedly connected to the threaded columns to facilitate the installation of the sealing cover.

[0010] The utility model is further configured that a sealing gasket is provided between the sealing cover and the purification box, so as to increase the sealing performance between the sealing cover and the purification box.

[0011] The utility model is further configured such that a retaining ring is fixedly provided on the lower end surface of the sealing cover, and the inner wall of the retaining ring contacts the outer wall of the purification box, so as to further increase the sealing performance between the sealing cover and the purification box.

[0012] The utility model is further configured such that a drain pipe is fixedly provided on the lower end surface of the receiving seat, the drain pipe is communicated with the water tank, and a valve is provided to facilitate replacement of water inside the water tank.

[0013] The utility model is further configured that a hose is provided on the other side of the purification box, and a gas collecting hood is provided on the other end of the hose, so as to increase the collection range of the waste gas from the injection molding machine.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides an injection molding machine exhaust gas collection device, which has the following beneficial effects:

[0016] 1. By setting a purification box, a card-jointed frame, a coarse filter, a fine filter, a circular hole, a latch, a socket, a pull block and a spring, the user can pull the pull block to disengage one end of the latch from the socket to disassemble the coarse filter and the fine filter, which is convenient for cleaning and replacement. In addition, by setting the coarse filter and the fine filter, impurities and dust in the exhaust gas can be filtered, which is convenient for later collection.

[0017] 2. By setting up a water tank, a connecting pipe, a negative pressure fan, a water injection pipe, a threaded cover, a collecting pipe and a collecting box, the user can turn on the negative pressure fan to allow the filtered gas to enter the water tank through the connecting pipe, so that it can fully contact with the water, thereby removing the fine impurities inside it, and finally the gas enters the collecting box through the collecting pipe for easy collection.

[0018] 3. By setting the threaded posts, sealing caps, avoidance holes, compression nuts, sealing washers and retaining rings, users can fasten the sealing cap to the upper end of the purification box, then tighten the compression nut so that its lower end abuts against the upper end face of the sealing cap. And by setting the sealing washer and the retaining ring, the sealing performance between the purification box and the sealing cap can be further enhanced to prevent air leakage. Description of the Drawings

[0019] Figure 1 It is an overall schematic diagram of an injection molding machine waste gas collection device in an unused state;

[0020] Figure 2 It is a schematic diagram of the installation positions of the drain pipe and the valve;

[0021] Figure 3 It is a schematic diagram of the installation of the clamping frame, coarse filter screen and fine filter screen inside the purification box;

[0022] Figure 4 It is Figure 3 a partial schematic diagram of area A in

[0023] Figure 5 It is a schematic diagram of the positions of the pins and sockets on the coarse filter screen;

[0024] Figure 6 It is an exploded view of the installation of the sealing cap, compression nut and sealing washer.

[0025] In the figure: 1. Purification box; 2. Clamping frame; 3. Coarse filter screen; 4. Fine filter screen; 5. Circular hole; 6. Pin; 7. Socket; 8. Pulling block; 9. Spring; 10. Support column; 11. Water tank; 12. Connecting pipe; 13. Negative pressure fan; 14. Water injection pipe; 15. Threaded cover; 16. Receiving seat; 17. Collection box; 18. Collection pipe; 19. Threaded post; 20. Sealing cap; 21. Avoidance hole; 22. Compression nut; 23. Sealing washer; 24. Retaining ring; 25. Drain pipe; 26. Valve; 27. Hose; 28. Air collection hood. Detailed Embodiment

[0026] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to elaborate on the present utility model in detail.

[0027] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figures 1-5 A waste gas collection device for an injection molding machine comprises a purification box 1, on the inner wall of the purification box 1 and on both the front and rear sides thereof, a clamping frame 2 is fixedly provided, a coarse filter 3 and a fine filter 4 are slidably provided inside the clamping frame 2, a circular hole 5 is provided on the outer wall of the clamping frame 2, a latch 6 is slidably provided inside the circular hole 5, plug holes 7 are correspondingly provided on the outer walls of the coarse filter 3 and the fine filter 4, the latch 6 is located inside the plug hole 7, a pull block 8 is fixedly provided at the other end of the latch 6, a spring 9 is fixedly provided between the pull block 8 and the clamping frame 2, a support column 10 is provided on the lower end surface of the purification box 1 and on the four corners, a water tank 11 is fixedly provided on the lower end surface of the support column 10.

[0030] In this embodiment, a connecting pipe 12 is fixedly provided on one side of the purification box 1, and the other end of the connecting pipe 12 extends to the bottom of the water tank 11. A negative pressure fan 13 is provided on the connecting pipe 12, and a water injection pipe 14 is provided on the outer wall of the water tank 11. A threaded buckle cover 15 is provided on the other end of the water injection pipe 14, and the threaded buckle cover 15 is threadedly connected to the water injection pipe 14. A receiving seat 16 is fixedly provided on the lower end surface of the water tank 11, and a collecting box 17 is provided on the upper end surface of the receiving seat 16 and located on one side of the water tank 11. A collecting pipe 18 is fixedly provided on the upper end surface of the water tank 11, and the other end of the collecting pipe 18 is connected to the collecting box 17. A drain pipe 25 is fixedly provided on the lower end surface of the receiving seat 16, and the drain pipe 25 is connected to the water tank 11 and is provided with a valve 26.

[0031] More specifically, the user can pull the pull block 8 to disengage one end of the pin 6 from the socket 7 to disassemble the coarse filter 3 and the fine filter 4 for easy cleaning and replacement. In addition, by providing the coarse filter 3 and the fine filter 4, impurities and dust in the exhaust gas can be filtered for easy later collection. After filtering, the negative pressure fan 13 can be turned on to allow the filtered gas to enter the water tank 11 through the connecting pipe 12 so that it can fully contact with water, thereby removing the fine impurities inside it. Finally, the gas enters the collection box 17 through the collection pipe 18 for easy collection.

[0032] See also Figure 1 and Figure 6, as an implementation method for increasing the sealing performance between the purification box 1 and the sealing cover 20: Threaded columns 19 are fixedly provided at the upper end surface of the purification box 1 and at the four corners. A sealing cover 20 is provided at the upper end of the purification box 1. Avoidance holes 21 are correspondingly opened on the upper end surface of the sealing cover 20. The threaded columns 19 are all located inside the avoidance holes 21. Compression nuts 22 are provided on the threaded columns 19. The compression nuts 22 are all threadedly connected to the threaded columns 19. A sealing gasket 23 is provided between the sealing cover 20 and the purification box 1. A retaining ring 24 is fixedly provided on the lower end surface of the sealing cover 20. The inner wall of the retaining ring 24 is in contact with the outer wall of the purification box 1.

[0033] Specifically, the user can buckle the sealing cover 20 onto the upper end of the purification box 1, and then tighten the compression nuts 22 so that their lower ends abut against the upper end surface of the sealing cover 20. And by providing the sealing gasket 23 and the retaining ring 24, the sealing performance between the purification box 1 and the sealing cover 20 can be further increased to prevent air leakage.

[0034] Please refer to Figure 1 , as a further implementation method for collecting waste gas: A hose 27 is provided on the other side of the purification box 1, and a gas collecting hood 28 is provided at the other end of the hose 27.

[0035] Specifically, the waste gas generated by the injection molding machine can be absorbed through the gas collecting hood 28.

[0036] In summary, when the overall equipment is in use: The user can turn on the negative pressure fan 13 to make the waste gas generated by the injection molding machine enter the purification box 1 through the gas collecting hood 28. At this time, the waste gas will pass through the filtration of the coarse filter screen 3 and the fine filter screen 4, and then enter the water tank 11 through the connecting pipe 12 to make it fully contact with water, thereby removing the fine impurities inside it. Finally, the gas enters the collection box 17 through the collection pipe 18 for convenient collection. Later, the sealing cover 20 can be disassembled by removing the compression nuts 22, and finally, by pulling the pull block 8, one end of the plug pin 6 can be disengaged from the jack 7 to disassemble the coarse filter screen 3 and the fine filter screen 4, which is convenient for cleaning and replacement.

[0037] In all the solutions mentioned above, for the connection between two components, welding, the cooperation connection of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine waste gas collection device, comprising a purification box (1), characterized in that: A clamping frame (2) is fixedly provided on the inner wall of the purification box (1) and on both the front and rear sides; a coarse filter (3) and a fine filter (4) are slidably provided inside the clamping frame (2); a circular hole (5) is provided on the outer wall of the clamping frame (2); a latch (6) is slidably provided inside the circular hole (5); a plug hole (7) is correspondingly provided on the outer wall of the coarse filter (3) and the fine filter (4); the latch (6) is located inside the plug hole (7); a pull block (8) is fixedly provided at the other end of the latch (6); a spring (9) is fixedly provided between the pull block (8) and the clamping frame (2); a support column (10) is provided on the lower end surface of the purification box (1) and at the four corners; a water tank (11) is fixedly provided on the lower end surface of the support column (10).

2. The waste gas collection device for an injection molding machine according to claim 1, characterized in that: A connecting pipe (12) is fixedly provided on one side of the purification box (1), the other end of the connecting pipe (12) extends to the bottom of the water tank (11), a negative pressure fan (13) is provided on the connecting pipe (12), an outer wall of the water tank (11) is provided with a water injection pipe (14), the other end of the water injection pipe (14) is provided with a threaded buckle cover (15), and the threaded buckle cover (15) is threadedly connected to the water injection pipe (14).

3. The waste gas collection device for an injection molding machine according to claim 2, characterized in that: A receiving seat (16) is fixedly provided on the lower end surface of the water tank (11); a collecting box (17) is provided on the upper end surface of the receiving seat (16) and located on one side of the water tank (11); a collecting pipe (18) is fixedly provided on the upper end surface of the water tank (11); the other end of the collecting pipe (18) is in communication with the collecting box (17).

4. The waste gas collection device for an injection molding machine according to claim 1, characterized in that: The upper end surface of the purification box (1) and the four corners thereof are fixedly provided with threaded columns (19); the upper end of the purification box (1) is provided with a sealing cover (20); the upper end surface of the sealing cover (20) is provided with a corresponding avoidance hole (21); the threaded columns (19) are located inside the avoidance hole (21); the threaded columns (19) are provided with a clamping nut (22); and the clamping nut (22) is threadedly connected to the threaded column (19).

5. The waste gas collection device for an injection molding machine according to claim 4, characterized in that: A sealing gasket (23) is provided between the sealing cover (20) and the purification box (1).

6. The waste gas collection device for an injection molding machine according to claim 4, characterized in that: A retaining ring (24) is fixedly provided on the lower end surface of the sealing cover (20), and the inner wall of the retaining ring (24) is in contact with the outer wall of the purification box (1).

7. The waste gas collection device for an injection molding machine according to claim 3, characterized in that: A drainage pipe (25) is fixedly provided on the lower end surface of the receiving seat (16); the drainage pipe (25) is communicated with the water tank (11) and is provided with a valve (26).

8. The waste gas collection device for an injection molding machine according to claim 1, characterized in that: A hose (27) is provided on the other side of the purification box (1), and a gas collecting hood (28) is provided on the other end of the hose (27).

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