Waste gas treatment device for injection molding machine

Abstract

The invention discloses a waste gas treatment device for an injection molding machine, and relates to the technical field of waste gas treatment.The waste gas treatment device comprises a shell, a bottom plate is fixedly connected to the bottom face of the shell, a top plate is detachably installed on the top face of the shell, a gas inlet cover is fixedly connected to one side of the shell, and a gas outlet is formed in the other side of the shell; the inner wall of the shell is fixedly connected with a pipeline, and the inner wall of the shell is fixedly connected with a pair of baffles; the device further comprises a mounting assembly, a scraping assembly and a butt joint assembly, and the mounting assembly is arranged in the shell and used for mounting the filter plate. The waste gas treatment device is reasonable in structure, the filter plate can be conveniently mounted through the mounting assembly, then impurities attached to the inner wall of the filter plate can be treated through the scraping assembly, finally, waste gas enters activated carbon to be further treated, and the waste gas treatment efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device for injection molding machines. Background Technology

[0002] During operation, injection molding machines generate waste gas due to the heating and decomposition of raw materials, the use of mold release agents, and the influence of additives. The waste gas contains volatile organic compounds (VOCs), non-methane total hydrocarbons (NMHCs), halogenated hydrocarbons, sulfides, and nitrogen oxides. If the waste gas is allowed to permeate the workshop, it will not only pollute the external environment but also harm the health of the workshop workers.

[0003] CN119258713A discloses a gas treatment device for exhaust gas from an injection molding machine. The device comprises a housing with an inlet hood connected to an external exhaust pipe. An inner cylinder is fixedly connected inside the housing, and an exhaust hood is fixedly connected to the side of the inner cylinder away from the inlet hood, connected to an external exhaust pipe. A mounting plate is fixedly attached to the inner cylinder near the inlet hood and has multiple diversion holes. A sliding plate is slidably connected to the inner cylinder away from the inlet hood and has multiple exhaust holes. An activated carbon sponge is installed between the mounting plate and the sliding plate. This invention controls the pore size of the activated carbon sponge by adjusting the position of the sliding plate based on the concentration of the exhaust gas, thereby controlling the flow of exhaust gas through the sponge. However, existing methods require preliminary filtration of the exhaust gas before it enters the activated carbon for adsorption, but the exhaust gas contains a large number of impurities. If these impurities are not treated promptly, they will affect the further processing of the exhaust gas upon entering the activated carbon. Summary of the Invention

[0004] The purpose of this application is to provide an exhaust gas treatment device for injection molding machines, which facilitates the installation of filter plates through an installation component, and then uses a scraping component to treat impurities attached to the inner wall of the filter plates. Finally, the exhaust gas enters the interior of activated carbon for further treatment, thereby increasing the exhaust gas treatment efficiency.

[0005] To achieve the above objectives, this application provides the following technical solution: a waste gas treatment device for injection molding machines, comprising a housing, a bottom plate fixedly connected to the bottom surface of the housing, a top plate detachably installed on the top surface of the housing, an air inlet hood fixedly connected to one side of the housing, an air outlet opened on the other side of the housing, a pipe fixedly connected to the inner wall of the housing, and a pair of baffles fixedly connected to the inner wall of the housing; further comprising an installation assembly, a scraping assembly, and a docking assembly, wherein the installation assembly is disposed inside the housing for installing a filter plate, the scraping assembly is disposed on the inner wall of the housing for removing deposits on the inner wall of the filter plate, and the docking assembly is disposed inside the housing for installing a connecting pipe.

[0006] Preferably, the mounting assembly includes a pair of side plates fixedly mounted on the inner wall of the housing, a horizontal plate fixedly connected between the side plates, arm plates attached to both sides of the top surface of the horizontal plate, and the filter plate fixedly connected to one end of the arm plate.

[0007] Preferably, a triangular block is attached to the top surface of the arm plate, a rod is fixedly connected to one end of the triangular block, the rod is movably inserted into a first bearing seat, the bottom end of the first bearing seat is fixedly connected to the horizontal plate, a collar is fixedly connected to the other end of the rod, a first spring is sleeved on the rod, and the two ends of the first spring are fixedly connected to one side of the first bearing seat and one side of the collar, respectively.

[0008] Preferably, the scraping assembly includes a rotating rod rotatably connected between a pair of side plates, a pair of mating plates fixedly connected to the rotating rod, and a scraper fixedly connected to the other end of the pair of mating plates, the scraper being attached to the inner wall of the filter plate.

[0009] Preferably, one end of the rotating rod is fixedly connected to a linkage plate, the linkage plate has a sliding groove, a pulley is slidably connected inside the sliding groove, the pulley is rotatably connected to the turntable, the turntable is fixedly connected to the main shaft, and one end of the main shaft is rotatably connected to the side plate.

[0010] Preferably, a first pulley is fixedly connected to the other end of the main shaft, a transmission belt is sleeved on the first pulley, the other end of the transmission belt is sleeved on a second pulley, the second pulley is fixedly connected to a transmission rod, the transmission rod is rotatably connected to the side plate, the other end of the transmission rod is fixedly connected to the output end of the drive motor, and the drive motor is fixedly installed on the inner wall of the side plate.

[0011] Preferably, the docking assembly includes a guide rail fixedly installed on the inner wall of the side plate, a retaining plate inserted inside the guide rail, a slide rail fixedly connected to the middle position of the retaining plate, and a through pipe inserted inside the slide rail.

[0012] Preferably, activated carbon is inserted inside the conduit, and one end of the activated carbon is connected to one end of the conduit.

[0013] Preferably, the surface of the activated carbon is attached with a gripping plate, one end of which is movably inserted into the inside of the limiting block. The limiting block is fixedly installed on the surface of the slide rail, and a pressure block is provided inside the limiting block. Side seats are fixedly connected to both ends of the pressure block.

[0014] Preferably, one end of the side seat is slidably connected to the side rod through the limiting block, the bottom end of the side rod is fixedly connected to a second shaft seat, one end of the second shaft seat is fixedly connected to the inner wall of the limiting block, the top surface of the pressure block is provided with an arc-shaped groove, a cam is attached to the inner wall of the arc-shaped groove, the cam is rotatably connected to the limiting block, and one end of the cam is fixedly connected to a handle.

[0015] In summary, the present invention has the following beneficial effects: 1. The present invention has a reasonable structure. When disassembling the filter plate, the clamping plate is first pulled out, and then the rod is pulled. A triangular block is fixedly connected to one end of the rod. By pulling the rod, the triangular block is disengaged from the surface of the arm plate. The filter plate is fixedly connected to one end of the arm plate. By disengaging the triangular block from the surface of the arm plate, it is easy to disassemble the filter plate and facilitate the periodic treatment of the attached substances.

[0016] 2. In this invention, when the filter plate is filtering, the drive motor operates. The output end of the drive motor is fixedly connected to a transmission rod. The operation of the drive motor causes the transmission rod to rotate, which in turn drives the second pulley to rotate. A transmission belt is fitted onto the second pulley, and the other end of the transmission belt is fitted onto the first pulley. The rotation of the second pulley drives the first pulley to rotate through the transmission belt. The rotation of the first pulley causes the main shaft to rotate, and the rotation of the main shaft causes the pulley on the turntable to slide inside the groove, thereby facilitating the back-and-forth swing of the linkage plate. The swing of the linkage plate causes the rotating rod to rotate, thereby facilitating the scraper on the docking plate to treat the deposits on the inner wall of the filter plate and preventing clogging during filtration.

[0017] 3. In this invention, a cam is rotatably connected to the limiting block, and the bottom surface of the cam is attached to the inside of the arc-shaped groove on the top surface of the pressure block. The pressure of the cam makes the pressure block tightly attached to the top surface of the gripper plate, which facilitates the fixation of the activated carbon. When the activated carbon inside the tube is removed, the handle is rotated to drive the cam to rotate. The rotation of the cam causes the pressure block and the gripper plate to loosen, which facilitates the gripper plate to be pulled out and the activated carbon to be removed and replaced. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the shell; Figure 2 This is a top view of the shell structure. Figure 3 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the shell; Figure 4 This is a schematic diagram of the three-dimensional structure of the side panel; Figure 5 This is a schematic diagram of the three-dimensional structure of the filter plate; Figure 6 This is a side view of the three-dimensional structure of the filter plate; Figure 7 This is a schematic diagram of the three-dimensional structure of the card plate; Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Shell; 101. Base plate; 102. Top plate; 103. Air inlet hood; 104. Air outlet; 105. Pipe; 106. Baffle; 2. Side plate; 201. Horizontal plate; 202. Arm plate; 203. Filter plate; 204. Triangular block; 205. Rod; 206. First bearing seat; 207. Collar; 208. First spring; 3. Rotating rod; 301. Connecting plate; 302. Scraper; 303. Linkage plate; 304. Slide groove; 30 5. Pulley; 306. Turntable; 307. Main shaft; 308. First pulley; 309. Transmission belt; 310. Second pulley; 311. Transmission rod; 312. Drive motor; 4. Guide rail; 401. Clamping plate; 402. Slide rail; 403. Through pipe; 404. Activated carbon; 414. Grip plate; 405. Limiting block; 406. Pressing block; 407. Side seat; 408. Side rod; 409. Second shaft seat; 410. Cam; 411. Handle. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: Reference Figure 1 - Figure 8 The exhaust gas treatment device for an injection molding machine shown includes a housing 1, a bottom plate 101 fixedly connected to the bottom surface of the housing 1, a top plate 102 detachably installed on the top surface of the housing 1, an air inlet hood 103 fixedly connected to one side of the housing 1, an air outlet 104 opened on the other side of the housing 1, a pipe 105 fixedly connected to the inner wall of the housing 1, and a pair of baffles 106 fixedly connected to the inner wall of the housing 1; it also includes an installation assembly, a scraping assembly, and a docking assembly. The installation assembly is located inside the housing 1 for installing a filter plate 203, the scraping assembly is located on the inner wall of the housing 1 for removing deposits on the inner wall of the filter plate 203, and the docking assembly is located inside the housing 1 for installing a connecting pipe 403.

[0023] Specifically, it should be noted that the exhaust gas enters the interior of the housing 1 through the air intake hood 103, then undergoes preliminary filtration through the filter plate 203, and then enters the interior of the activated carbon 404 to adsorb harmful impurities. Finally, it is discharged through the pipe 105.

[0024] As one embodiment of this invention, the mounting assembly includes a pair of side plates 2 fixedly mounted on the inner wall of the housing 1. A horizontal plate 201 is fixedly connected between the side plates 2. Arm plates 202 are attached to both sides of the top surface of the horizontal plate 201. A filter plate 203 is fixedly connected to one end of the arm plate 202. A triangular block 204 is attached to the top surface of the arm plate 202. A rod 205 is fixedly connected to one end of the triangular block 204. The rod 205 is movably inserted into a first bearing seat 206. The bottom end of the first bearing seat 206 is fixedly connected to the horizontal plate 201. A collar 207 is fixedly connected to the other end of the rod 205. A first spring 208 is sleeved on the rod 205. The two ends of the first spring 208 are fixedly connected to one side of the first bearing seat 206 and one side of the collar 207, respectively.

[0025] Specifically, when disassembling the filter plate 203, first pull out the clamping plate 401, and then pull the rod 205. One end of the rod 205 is fixedly connected to a triangular block 204. By pulling the rod 205, the triangular block 204 is disengaged from the surface of the arm plate 202. One end of the arm plate 202 is fixedly connected to the filter plate 203. By disengaging the triangular block 204 from the surface of the arm plate 202, it is easy to disassemble the filter plate 203 and facilitate the periodic treatment of the attached substances.

[0026] In one embodiment of this invention, the scraping assembly includes a rotating rod 3 rotatably connected between a pair of side plates 2. A pair of mating plates 301 are fixedly connected to the rotating rod 3. A scraper 302 is fixedly connected to the other end of the pair of mating plates 301. The scraper 302 is attached to the inner wall of the filter plate 203. A linkage plate 303 is fixedly connected to one end of the rotating rod 3. A groove 304 is provided on the linkage plate 303. A pulley 305 is slidably connected inside the groove 304. The pulley 305 is rotatably connected to a turntable 306. The turntable 306 is fixedly connected to... The main shaft 307 is connected to the main shaft 307. One end of the main shaft 307 is rotatably connected to the side plate 2. The other end of the main shaft 307 is fixedly connected to the first pulley 308. A transmission belt 309 is sleeved on the first pulley 308. The other end of the transmission belt 309 is sleeved on the second pulley 310. The second pulley 310 is fixedly connected to the transmission rod 311. The transmission rod 311 is rotatably connected to the side plate 2. The other end of the transmission rod 311 is fixedly connected to the output end of the drive motor 312. The drive motor 312 is fixedly installed on the inner wall of the side plate 2.

[0027] Specifically, during filtration, the drive motor 312 operates, and a transmission rod 311 is fixedly connected to the output end of the drive motor 312. The operation of the drive motor 312 causes the transmission rod 311 to rotate, which in turn drives the second pulley 310 to rotate. A transmission belt 309 is fitted on the second pulley 310, and the other end of the transmission belt 309 is fitted on the first pulley 308. The rotation of the second pulley 310 drives the first pulley 308 to rotate through the transmission belt 309. The rotation of the first pulley 308 causes the main shaft 307 to rotate, and the rotation of the main shaft 307 causes the pulley 305 on the turntable 306 to slide inside the groove 304, thereby facilitating the back-and-forth swing of the linkage plate 303. The swing of the linkage plate 303 causes the rotating rod 3 to rotate, thereby facilitating the scraper 302 on the docking plate 301 to treat the deposits on the inner wall of the filter plate 203 and prevent clogging during filtration.

[0028] In one embodiment of this invention, the docking assembly includes a guide rail 4 fixedly mounted on the inner wall of the side plate 2. A retaining plate 401 is inserted inside the guide rail 4. A slide rail 402 is fixedly connected to the middle of the retaining plate 401. A through pipe 403 is fitted inside the slide rail 402. Activated carbon 404 is inserted inside the through pipe 403. One end of the activated carbon 404 is connected to one end of the pipe 105. A gripping plate 414 is attached to the surface of the activated carbon 404. One end of the gripping plate 414 is movably inserted inside a limiting block 405. The limiting block 405 is fixedly mounted on the slide rail 4. On the surface of 02, a pressure block 406 is provided inside the limiting block 405. Side seats 407 are fixedly connected to both ends of the pressure block 406. One end of the side seat 407 passes through the limiting block 405 and is slidably connected to the side rod 408. A second shaft seat 409 is fixedly connected to the bottom end of the side rod 408. One end of the second shaft seat 409 is fixedly connected to the inner wall of the limiting block 405. An arc-shaped groove is opened on the top surface of the pressure block 406. A cam 410 is attached to the inner wall of the arc-shaped groove. The cam 410 is rotatably connected to the limiting block 405. A handle 411 is fixedly connected to one end of the cam 410.

[0029] Specifically, a cam 410 is rotatably connected to the limiting block 405, and the bottom surface of the cam 410 is attached to the arc-shaped groove on the top surface of the pressure block 406. The pressure of the cam 410 makes the pressure block 406 tightly attached to the top surface of the gripper plate 414, which facilitates the fixation of the activated carbon 404. When removing the activated carbon 404 inside the tube 403, the handle 411 is rotated to drive the cam 410 to rotate. The rotation of the cam 410 causes the pressure block 406 to loosen from the gripper plate 414, which facilitates the removal of the activated carbon 404 for replacement.

[0030] The working principle of this invention is as follows: When disassembling the filter plate 203, firstly, the clamping plate 401 is pulled out, and then the rod 205 is pulled. One end of the rod 205 is fixedly connected to a triangular block 204. By pulling the rod 205, the triangular block 204 is disengaged from the surface of the arm plate 202. One end of the arm plate 202 is fixedly connected to the filter plate 203. By disengaging the triangular block 204 from the surface of the arm plate 202, it is easy to disassemble the filter plate 203 and facilitate the periodic treatment of the attached substances. When the filter plate 203 is filtering, the drive motor 312 operates. The output end of the drive motor 312 is fixedly connected to the transmission rod 311. The operation of the drive motor 312 causes the transmission rod 311 to rotate. The rotation of the transmission rod 311 drives the second pulley 310 to rotate. The second pulley 310 is fitted with a transmission belt 309, and the other end of the transmission belt 309 is fitted with the first pulley 308. The rotation of the second pulley 310 drives the first pulley 308 to rotate through the transmission belt 309. The rotation of the first pulley 308 causes the main shaft 307 to rotate. The rotation of the main shaft 307 causes the pulley 305 on the turntable 306 to slide inside the sliding groove 304, thereby facilitating the back-and-forth swing of the linkage plate 303. The swing of the linkage plate 303 causes the rotating rod 3 to rotate, thereby facilitating the scraper 302 on the docking plate 301 to treat the deposits on the inner wall of the filter plate 203 and avoid clogging during filtration. A cam 410 is rotatably connected to the limiting block 405, and the bottom surface of the cam 410 is attached to the arc-shaped groove on the top surface of the pressure block 406. The pressure of the cam 410 makes the pressure block 406 tightly attached to the top surface of the gripper plate 414, which facilitates the fixation of the activated carbon 404. When the activated carbon 404 inside the tube 403 is removed, the handle 411 is rotated to drive the cam 410 to rotate. The rotation of the cam 410 causes the pressure block 406 to be released from the gripper plate 414, which facilitates the removal and replacement of the activated carbon 404 by the gripper plate 414.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for an injection molding machine, characterized by comprising: Comprising The bottom surface of the shell (1) is fixedly connected with a bottom plate (101), the top surface of the shell (1) is detachably installed with a top plate (102), one side of the shell (1) is fixedly connected with an air inlet cover (103), the other side of the shell (1) is provided with an air outlet (104), the inner wall of the shell (1) is fixedly connected with a pipeline (105), and the inner wall of the shell (1) is fixedly connected with a pair of baffles (106); It also includes an installation assembly, a scraping assembly and a docking assembly, the installation assembly is arranged in the inside of the shell (1) for installing the filter plate (203), the scraping assembly is arranged on the inner wall of the shell (1) for removing the attachments on the inner wall of the filter plate (203), and the docking assembly is arranged in the inside of the shell (1) for installing the pipe (403).

2. The exhaust gas treatment device for an injection molding machine according to claim 1, characterized by: The installation assembly includes a pair of side plates (2) fixedly installed on the inner wall of the shell (1), the side plates (2) are fixedly connected with a horizontal plate (201), the top surface of the horizontal plate (201) is attached with an arm plate (202) on both sides, and one end of the arm plate (202) is fixedly connected with the filter plate (203).

3. The exhaust gas treatment device for an injection molding machine according to claim 2, characterized by: The top surface of the arm plate (202) is attached with a triangular block (204), one end of the triangular block (204) is fixedly connected with a rod body (205), the rod body (205) is movably inserted into a first shaft seat (206), the bottom end of the first shaft seat (206) is fixedly connected with the horizontal plate (201), the other end of the rod body (205) is fixedly connected with a sleeve ring (207), a first spring (208) is sleeved on the rod body (205), and the two ends of the first spring (208) are fixedly connected with one side of the first shaft seat (206) and one side of the sleeve ring (207).

4. The exhaust gas treatment device for an injection molding machine according to claim 2, characterized by: The scraping assembly includes a rotating shaft (3) rotatably connected between a pair of side plates (2), a pair of docking plates (301) are fixedly connected to the rotating shaft (3), and the other end of the pair of docking plates (301) is fixedly connected with a scraping plate (302), which is attached to the inner wall of the filter plate (203).

5. The off-gas treatment device for an injection molding machine according to claim 4, characterized by: One end of the rotating shaft (3) is fixedly connected with a linkage plate (303), a sliding groove (304) is formed in the linkage plate (303), a pulley (305) is slidably connected in the sliding groove (304), the pulley (305) is rotatably connected to a rotating disc (306), the rotating disc (306) is fixedly connected to a main shaft (307), and one end of the main shaft (307) is rotatably connected to the side plate (2).

6. The off-gas treatment device for an injection molding machine according to claim 5, characterized by: The other end of the main shaft (307) is fixedly connected with a first belt pulley (308), the first belt pulley (308) is sleeved with a transmission belt (309), the other end of the transmission belt (309) is sleeved with a second belt pulley (310), the second belt pulley (310) is fixedly connected with a transmission rod (311), the transmission rod (311) is rotatably connected with the side plate (2), the other end of the transmission rod (311) is fixedly connected with the output end of a driving motor (312), and the driving motor (312) is fixedly installed on the inner wall of the side plate (2).

7. The exhaust gas treatment device for an injection molding machine according to claim 2, characterized by: The butt joint assembly includes a guide rail (4) fixedly installed on the inner wall of the side plate (2), a clamping plate (401) is inserted in the guide rail (4), a sliding rail (402) is fixedly connected to the middle part of the clamping plate (401), and a through pipe (403) is clamped in the sliding rail (402).

8. The off-gas treatment device for an injection molding machine according to claim 7, characterized by: The inside of the through pipe (403) is inserted with activated carbon (404), one end of the activated carbon (404) is communicated with one end of the pipeline (105).

9. The off-gas treatment device for an injection molding machine according to claim 8, characterized by: The surface of the activated carbon (404) is attached with a grabbing plate (414), one end of the grabbing plate (414) is movably inserted in the inside of a limiting block (405), the limiting block (405) is fixedly installed on the surface of the sliding rail (402), the inside of the limiting block (405) is provided with a pressing block (406), and both ends of the pressing block (406) are fixedly connected with a side seat (407).

10. The exhaust gas treatment device for an injection molding machine according to claim 9, characterized by: One end of the side seat (407) is slidably connected with a side rod (408) through the limiting block (405), the bottom end of the side rod (408) is fixedly connected with a second shaft seat (409), one end of the second shaft seat (409) is fixedly connected with the inner wall of the limiting block (405), the top surface of the pressing block (406) is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is attached with a cam (410), the cam (410) is rotatably connected with the limiting block (405), and one end of the cam (410) is fixedly connected with a handle (411).

Images