CN117001923A

CN117001923A - Exhaust type injection molding machine

Info

Publication number: CN117001923A
Application number: CN202310767021.5A
Authority: CN
Inventors: 姚建业; 姚璐; 赖卫凤; 金娇荣
Original assignee: Ningbo Younuomu Machinery Co ltd
Current assignee: Ningbo Younuomu Machinery Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-11-07
Anticipated expiration: 2043-06-27
Also published as: CN117001923B

Abstract

The invention discloses an exhaust type injection molding machine, which relates to the technical field of injection molding machines and solves the problem that the filtering effect of active carbon on the exhaust gas is poor because a large amount of water vapor is contained in the exhaust gas of the exhaust type injection molding machine and has a certain inhibition effect on the adsorption capacity of the active carbon; according to the invention, by installing the exhaust structure and the condensation structure, the adsorption capacity of the active carbon filter element can be effectively prevented from being inhibited by water vapor; the invention is beneficial to automatically dredging the filter plate through the dredging assembly, and avoids the influence of accumulation of particles at the inlet end of the filter plate on the filtering capability of the filter plate on gas.

Description

Exhaust type injection molding machine

Technical Field

The invention relates to the technical field of injection molding machines, in particular to an exhaust type injection molding machine.

Background

Certain plastics can absorb a large amount of moisture in the air after being stored, especially some plastics which are easy to absorb moisture, such as PA and the like; these materials either require venting of water vapor generated during processing due to insufficient drying or venting of gases generated during injection molding; in order to solve this particular degassing problem, degassing extruders and injection molding machines have emerged.

However, in the use process of the existing exhaust type injection molding machine, as part of plastic raw materials contain toxic substances such as benzene, toluene and the like in the exhaust gas during the heating and melting processes, the toxic substances can cause harm to the health of long-term workers in a production workshop; the simplest and low-energy-consumption solution in the prior art is to filter toxic substances such as benzene, toluene and the like in the exhaust gas through the activated carbon, but the exhaust gas of the exhaust type injection molding machine contains a large amount of water vapor, and the water vapor has a certain inhibition effect on the adsorption capacity of the activated carbon, so that the filtering effect of the activated carbon on the exhaust gas is poor.

Disclosure of Invention

The invention aims to provide an exhaust type injection molding machine for preventing water vapor from affecting active carbon, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the exhaust type injection molding machine comprises a machine base, wherein a hopper is arranged at a feed inlet of the machine base, an anti-blocking mechanism for preventing materials from being blocked is arranged at a feed outlet of the hopper, two exhaust structures which are symmetrically distributed and used for exhausting gas or water vapor in a threaded charging barrel are arranged at the outer side of the threaded charging barrel, and each exhaust structure comprises an exhaust guide pipe which is fixedly arranged at the upper end of the machine base and communicated with the threaded charging barrel in the machine base; and the condensing structure is used for condensing the exhaust gas in the screw feed cylinder and is arranged on the outer side of the exhaust structure.

Preferably, the condensing structure comprises two rectangular ducts fixedly sleeved on the outer sides of the exhaust ducts, the two rectangular ducts are fixedly embedded on the upper end of the base, the outer sides of the exhaust ducts are movably sleeved with condensing coils, the condensing coils are made of metal, the condensing coils are fixedly arranged on first ducts communicated with the condensing coils, and the outer sides of the condensing coils are fixedly provided with second ducts communicated with the condensing coils.

Preferably, the lower ends of the two second guide pipes are positioned in the cold water tank which is mutually communicated with the lower end of the machine base, one of the lower ends of the second guide pipes is positioned in the cold water tank, the water pump is fixedly connected with the water pump, cold water in the condensing coil pipe can flow circularly, the outer side of the rectangular guide pipe is fixedly provided with a drainage guide pipe which is mutually communicated with the rectangular guide pipe, the lower end of the drainage guide pipe is positioned in the collecting box which is mutually communicated with the lower end of the machine base, and the collecting box can collect condensed water.

Preferably, the outside fixed mounting of collecting box has the drain pipe that communicates with each other with it, just the drain pipe stretches out outside the frame, and the drain pipe can discharge the comdenstion water in the collecting box, the outside fixed mounting of drain pipe has the valve, the outside of rectangle pipe is located the upside fixed mounting of drain pipe is in the water receiving tank that communicates with each other with it, the lower extreme fixed mounting of water receiving tank has a plurality of groups to be equidistant distribution and the slope pipe that communicates with each other with it, the lower extreme of slope pipe runs through the rectangle pipe.

Preferably, the upper end of exhaust duct is provided with semicircle hollow sphere portion, but exhaust duct's inside movable mounting has the rubber piston of reciprocates, just the outer wall of rubber piston with exhaust duct's inner wall activity laminating, the inside center department of rubber piston is fixed to be inlayed the fixed column, the both ends of fixed column are located the equal fixedly connected with spacing disc in the outside of rubber piston, spacing disc can effectively prevent that rubber piston from breaking away from the fixed column, the downside of rubber piston is located exhaust duct's internally mounted has the spring, just the upper end of spring is fixed to be inlayed in one that is located the downside spacing disc's lower terminal surface.

Preferably, the lower extreme fixedly connected with solid fixed ring of spring, just gu fixed ring with the connected mode between the exhaust duct is fixed connection, is located one of upside the upper end center department of spacing disc is fixed to be inlayed the connecting rod, just the connecting rod runs through the exhaust duct, a plurality of groups of spouts that are circumference equidistance and distribute have been seted up in the outside of connecting rod, a plurality of groups the inside of spout has all movably inlayed the ball, just the ball with the connected mode between the exhaust duct is rotatory connection, the ball passes through the spout with connecting rod roll connection, the ball can reduce the frictional force between connecting rod and the exhaust duct, a plurality of groups of exhaust holes that are circumference equidistance and distribute have been seted up in the outside of exhaust duct.

Preferably, the inside fixed mounting of rectangle pipe has the filter, the tip activity of rectangle pipe has inlayed the active carbon filter core, just the filter is located the left side of active carbon filter core, the filter plate can filter the particle that contains in the gas of department, the tip fixedly connected with flange board of rectangle pipe, the right-hand member fixed mounting of active carbon filter core has the fixed plate, just the fixed plate can inlay in the flange inboard, two spacing components that are symmetric distribution are installed to the right-hand member face of flange board.

Preferably, a dredging component is installed between the left side of the filter plate and the sliding groove, the dredging component comprises a grid plate installed on the right side of the filter plate, the upper end of the sliding groove is located on the outer side of the exhaust guide pipe and fixedly installed with a supporting rod, the right end of the supporting rod is fixedly connected with the grid plate, a reinforcing rod is fixedly installed at the upper end of the supporting rod, the reinforcing rod is fixedly connected with the grid plate, two limit guide rails which are symmetrically distributed are fixedly installed on the outer side of the grid plate, the limit guide rails are fixedly connected with the rectangular guide pipe, a plurality of groups of hairbrush strips which are equidistantly distributed are installed on the end face of one side of the grid plate, the hairbrush strips are movably attached to the filter plate, and the hairbrush strips can move up and down under the driving of a rubber piston, so that filtered particles of the filter plate can be brushed down.

Preferably, the limiting assembly comprises a limiting hinged support fixedly mounted on the right end face of the flange plate, a limiting plate is mounted on the inner side of the limiting hinged support, the limiting plate is rotationally connected with the limiting hinged support through a positioning shaft, a shifting block is fixedly mounted on the right end face of the positioning shaft, the left end face of the limiting plate is respectively movably abutted to the right end face of the flange plate and the right end face of the fixing plate, and when the limiting plate rotates to a horizontal state, the active carbon filter element can be prevented from being separated from the rectangular guide tube.

Preferably, the outside of exhaust pipe just is located the fixed cover of upside of exhaust hole has cup jointed the baffle, just the shape of baffle is the shirt rim form, and the baffle can prevent that the comdenstion water from flowing back to in the screw rod feed cylinder in the frame through the exhaust hole.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the exhaust structure and the condensing structure are arranged, when the air pressure in the threaded charging barrel in the engine base is higher, the rubber piston in the exhaust structure can move upwards under the drive of the air pressure, the air in the threaded charging barrel can be discharged into the rectangular conduit in the condensing structure through the air outlet, and after the air is condensed through the condensing coil in the rectangular conduit, a large amount of moisture carried in the air can be removed, and then the residual moisture and particles in the air are removed through the filter plate, so that the adsorption capacity of the active carbon filter element can be effectively prevented from being inhibited by water vapor.

2. According to the invention, through the dredging assembly, when the rubber piston in the exhaust structure moves up and down in the exhaust guide pipe under the drive of the air pressure and the spring, the grating plate in the dredging structure moves along with the rubber piston under the action of the connecting rod and the supporting rod, the grating plate drives the hairbrush strip to rub up and down at the inlet end of the filter plate, particles at the filtering position of the filter plate can be brushed down, the brushed particles are mixed with filtered water, and then the filtered particles are discharged into the rectangular guide pipe through the collecting tank and the inclined guide pipe to be discharged, so that the filter plate is automatically dredged, and the influence of accumulation of the particles at the inlet end of the filter plate on the filtering capability of the filter plate on gas is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic side cross-sectional view of an exhaust structure of a housing of the present invention;

FIG. 3 is a schematic diagram showing the connection state of the condensing mechanism and the exhaust structure according to the present invention;

FIG. 4 is an enlarged split schematic view of FIG. 3A according to the present invention;

FIG. 5 is a schematic side cross-sectional view of an exhaust structure of the present invention;

FIG. 6 is an enlarged split schematic of FIG. 5B in accordance with the present invention;

FIG. 7 is a schematic view showing the internal structure of the exhaust duct of the present invention;

fig. 8 is an enlarged split schematic of fig. 3 a according to the present invention.

In the figure: 1. a base; 2. a hopper; 3. an anti-blocking mechanism; 4. an exhaust structure; 401. an exhaust duct; 402. a rubber piston; 403. fixing the column; 404. a limit disc; 405. a spring; 406. a fixing ring; 407. a connecting rod; 408. a chute; 409. a ball; 410. an exhaust hole; 5. a condensing structure; 501. a rectangular conduit; 502. a condensing coil; 503. a first conduit; 504. a second conduit; 505. a cold water tank; 506. a drainage conduit; 507. a collection box; 508. a drain pipe; 509. a valve; 510. a water receiving tank; 511. tilting the catheter; 6. a dredging assembly; 601. a grating plate; 602. a support rod; 603. a reinforcing rod; 604. a spacing guide rail; 605. a brush strip; 7. a filter plate; 8. an activated carbon filter element; 9. a limit component; 901. limiting the hinged support; 902. a limiting plate; 903. positioning a shaft; 904. a shifting block; 10. a flange plate; 11. a fixing plate; 12. and a baffle.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1, 2, 3 and 4, an exhaust injection molding machine in the drawings comprises a machine base 1, a hopper 2 is installed at a feed inlet of the machine base 1, an anti-blocking mechanism 3 for preventing materials from blocking is installed at a feed outlet of the hopper 2, two exhaust structures 4 which are symmetrically distributed and are used for exhausting gas or water vapor in a threaded charging barrel are installed at the outer side of the threaded charging barrel of the machine base 1, and each exhaust structure 4 comprises an exhaust conduit 401 which is fixedly installed at the upper end of the machine base 1 and is mutually communicated with the threaded charging barrel of the machine base 1; and a condensation structure 5, wherein the condensation structure 5 for condensing the exhaust gas in the screw barrel is arranged on the outer side of the exhaust structure 4.

Referring to fig. 3 and 4, the condensing structure 5 includes two rectangular pipes 501 fixedly sleeved on the outer sides of the two exhaust pipes 401, the two rectangular pipes 501 are fixedly embedded on the upper end of the base 1, condensing coils 502 are movably sleeved on the outer sides of the two exhaust pipes 401 and inside the rectangular pipes 501, a first pipe 503 communicated with the two condensing coils 502 is fixedly installed between the two condensing coils 502, and a second pipe 504 communicated with the two condensing coils 502 is fixedly installed on the outer sides of the two condensing coils 502.

Referring to fig. 3, the lower ends of the two second pipes 504 are fixedly connected with a cold water tank 505 which is mutually communicated with the cold water tank 505 inside the machine base 1, the lower end of one second pipe 504 is fixedly connected with a water pump inside the cold water tank 505, the outer side of the rectangular pipe 501 is fixedly provided with a drainage pipe 506 which is mutually communicated with the cold water tank, and the lower end of the drainage pipe 506 is fixedly connected with a collecting tank 507 which is mutually communicated with the water tank inside the machine base 1.

Referring to fig. 3, a drain pipe 508 is fixedly installed on the outer side of the collecting box 507 and is communicated with the collecting box, the drain pipe 508 extends out of the machine base 1, a valve 509 is fixedly installed on the outer side of the drain pipe 508, a water receiving tank 510 is fixedly installed on the outer side of the rectangular guide pipe 501 and is communicated with the drain pipe 506, a plurality of groups of inclined guide pipes 511 which are equidistantly distributed and are communicated with each other are fixedly installed at the lower end of the water receiving tank 510, and the lower end of the inclined guide pipe 511 penetrates through the rectangular guide pipe 501.

Referring to fig. 5 and 7, a semicircular hollow ball portion is disposed at an upper end of the exhaust duct 401, a rubber piston 402 capable of moving up and down is movably mounted in the exhaust duct 401, an outer wall of the rubber piston 402 is movably attached to an inner wall of the exhaust duct 401, a fixing column 403 is fixedly embedded in an inner center of the rubber piston 402, two ends of the fixing column 403 are located on outer sides of the rubber piston 402 and fixedly connected with a limiting disc 404, a spring 405 is mounted in an inner portion of the exhaust duct 401 on a lower side of the rubber piston 402, and an upper end of the spring 405 is fixedly embedded on a lower end face of one limiting disc 404 located on a lower side.

Referring to fig. 5, a fixed ring 406 is fixedly connected to the lower end of a spring 405, the fixed ring 406 is fixedly connected to an exhaust duct 401, a connecting rod 407 is fixedly embedded in the center of the upper end of a limiting disc 404 located on the upper side, the connecting rod 407 penetrates through the exhaust duct 401, a plurality of groups of sliding grooves 408 distributed at equal intervals in circumference are formed in the outer side of the connecting rod 407, balls 409 are movably embedded in the inner parts of the plurality of groups of sliding grooves 408, the balls 409 are rotationally connected to the exhaust duct 401, the balls 409 are in rolling connection with the connecting rod 407 through the sliding grooves 408, and a plurality of groups of exhaust holes 410 distributed at equal intervals in circumference are formed in the outer side of the exhaust duct 401.

Referring to fig. 3 and 4, a filter plate 7 is fixedly installed inside a rectangular conduit 501, an activated carbon filter element 8 is movably embedded at the end of the rectangular conduit 501, the filter plate 7 is located at the left side of the activated carbon filter element 8, a flange plate 10 is fixedly connected to the end of the rectangular conduit 501, a fixing plate 11 is fixedly installed at the right end of the activated carbon filter element 8, the fixing plate 11 can be embedded in the flange plate 10, and two limit assemblies 9 which are symmetrically distributed are installed at the right end face of the flange plate 10.

Working principle for preventing water vapor from affecting activated carbon: in the operation process of the injection molding machine during exhaust, when the gas pressure in the threaded charging barrel in the machine base 1 is increased, the rubber piston 402 in the exhaust guide pipe 401 moves upwards under the driving of the gas pressure in the threaded charging barrel, redundant gas in the threaded charging barrel is discharged through the exhaust hole 410, the discharged gas passes through the condensing coil 502 at the outer side of the exhaust guide pipe 401, water vapor molecules in the discharged gas can lose energy and gradually decelerate and gather together to form water drops, the water drops can be continuously increased to form condensed water, the condensed water enters the collecting box 507 through the drainage guide pipe 506, then the gas enters the filter plate 7, the filter plate 7 filters the gas, particles and residual water carried in the gas can be filtered, thereby effectively avoiding the adsorption capacity of water vapor to inhibit active carbon, the gas filtered by the filter plate 7 enters the active carbon filter element 8, and the active carbon filter element 8 filters harmful substances such as benzene and toluene in the gas.

Example 2

Referring to fig. 4 and 5, in this embodiment, for further description of embodiment 1, a dredging assembly 6 is installed between the left side of the filter plate 7 and the chute 408, the dredging assembly 6 includes a grid plate 601 installed on the right side of the filter plate 7, a supporting rod 602 is fixedly installed at the upper end of the chute 408 located at the outer side of the exhaust duct 401, the right end of the supporting rod 602 is fixedly connected with the grid plate 601, a reinforcing rod 603 is fixedly installed at the upper end of the supporting rod 602, the reinforcing rod 603 is fixedly connected with the grid plate 601, two symmetrically distributed limit rails 604 are fixedly installed at the outer side of the grid plate 601, the limit rails 604 are fixedly connected with the rectangular duct 501, a plurality of groups of equidistant hairbrush strips 605 are installed at the end face of one side of the grid plate 601 facing the filter plate 7, and the hairbrush strips 605 are movably attached to the filter plate 7.

Referring to fig. 8, the limiting assembly 9 includes a limiting hinge support 901 fixedly mounted on a right end surface of the flange plate 10, a limiting plate 902 is mounted on an inner side of the limiting hinge support 901, the limiting plate 902 is rotatably connected with the limiting hinge support 901 through a positioning shaft 903, a shifting block 904 is fixedly mounted on a right end surface of the positioning shaft 903, and a left end surface of the limiting plate 902 is movably abutted with right end surfaces of the flange plate 10 and the fixing plate 11 respectively.

In this embodiment: when the rubber piston 402 is driven to move upwards by air pressure in the threaded pipe in the machine base 1, after air is discharged and decompressed through the air exhaust hole 410, the rubber piston 402 moves downwards under the driving of the spring 405, and then moves upwards under the driving of the air pressure in the threaded pipe, so that the rubber piston 402 can reciprocate upwards and downwards in the air exhaust guide pipe 401, in the reciprocating movement process of the rubber piston 402, the grid plate 601 moves upwards and downwards along with the rubber piston 402 under the action of the connecting rod 407 and the supporting rod 602, in the vertical movement process of the grid plate 601 driving a plurality of groups of hairbrush strips 605, the hairbrush strips 605 can sweep down particles filtered by the filter plate 7, the swept particles and residual water are mixed into the water receiving groove 510, enter the rectangular guide pipe 501 through the inclined guide pipe 511, and finally are discharged into the collecting box 507 through the drainage guide pipe 506, thereby being beneficial to automatically cleaning the filter plate 7 and avoiding the influence of the accumulation of the particles at the inlet end of the filter plate 7 on the filtering capability of the filter plate 7;

when changing active carbon filter core 8, under the condition that limiting plate 902 rotates with spacing free bearing 901 through locating shaft 903 to be connected, rotate limiting plate 902 to the vertical state through shifting block 904, do not have the barrier of limiting plate 902, can easily dismantle active carbon filter core 8 and change, the operation is comparatively simple and convenient.

Example 3

Referring to fig. 5, in this embodiment, for further illustration, the baffle plate 12 is fixedly sleeved on the outer side of the exhaust duct 401 and on the upper side of the exhaust hole 410, and the baffle plate 12 has a skirt shape.

In this embodiment: when the condensed water drops from the condensing coil 502, the skirt-shaped baffle 12 blocks the vent hole 410, so that the condensed water can be effectively prevented from flowing back into the screw barrel in the machine base 1 through the vent hole 410 and the exhaust conduit 401.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an exhaust formula injection molding machine, includes frame (1), hopper (2) are installed to the feed inlet department of frame (1), anti-blocking mechanism (3) that are used for preventing the material jam are installed to the feed inlet department of hopper (2), its characterized in that: two exhaust structures (4) which are symmetrically distributed and used for exhausting gas or water vapor in the threaded charging barrel are arranged on the outer side of the threaded charging barrel of the machine base (1), and each exhaust structure (4) comprises an exhaust conduit (401) which is fixedly arranged at the upper end of the machine base (1) and is communicated with the threaded charging barrel of the machine base (1);

and the condensing structure (5) is used for condensing the exhaust gas in the screw barrel, and the condensing structure (5) is arranged on the outer side of the exhaust structure (4).

2. A vented injection molding machine as claimed in claim 1, wherein: the condensing structure (5) comprises two rectangular guide pipes (501) fixedly sleeved on the outer sides of the exhaust guide pipes (401), the rectangular guide pipes (501) are fixedly embedded at the upper ends of the machine base (1), the condensing coils (502) are movably sleeved on the outer sides of the exhaust guide pipes (401) and located in the rectangular guide pipes (501), the condensing coils (502) are fixedly installed between the condensing coils (502) and are mutually communicated with the first guide pipes (503), and the second guide pipes (504) mutually communicated with the condensing coils (502) are fixedly installed on the outer sides of the condensing coils (502).

3. A vented injection molding machine as claimed in claim 2, wherein: the lower ends of the two second guide pipes (504) are fixedly connected with a cold water tank (505) which is mutually communicated with the two second guide pipes (504) in the machine base (1), the lower end of one second guide pipe (504) is fixedly connected with a water pump in the cold water tank (505), a drainage guide pipe (506) which is mutually communicated with the rectangular guide pipe (501) is fixedly arranged on the outer side of the rectangular guide pipe (501), and the lower end of the drainage guide pipe (506) is fixedly connected with a collecting tank (507) which is mutually communicated with the lower end of the drainage guide pipe (506) in the machine base (1).

4. A vented injection molding machine as claimed in claim 3, wherein: the outside fixed mounting of collection box (507) has drain pipe (508) with it intercommunication, just drain pipe (508) stretch out outside frame (1), the outside fixed mounting of drain pipe (508) has valve (509), the outside of rectangle pipe (501) is located the upside fixed mounting of drain pipe (506) is in water receiving tank (510) with it intercommunication, the lower extreme fixed mounting of water receiving tank (510) has a plurality of groups to be equidistant distribution and with slope pipe (511) of it intercommunication each other, the lower extreme of slope pipe (511) runs through rectangle pipe (501).

5. The vented injection molding machine of claim 4, wherein: the upper end of exhaust duct (401) is provided with semicircle hollow sphere portion, but the inside movable mounting of exhaust duct (401) has rubber piston (402) of reciprocates, just the outer wall of rubber piston (402) with the inner wall activity laminating of exhaust duct (401), the inside center department of rubber piston (402) is fixed to be inlayed fixed column (403), the both ends of fixed column (403) are located the outside of rubber piston (402) is all fixedly connected with spacing disc (404), the downside of rubber piston (402) is located the internally mounted of exhaust duct (401) has spring (405), just the upper end of spring (405) is fixed to be inlayed in being located one of downside spacing disc (404) lower terminal surface.

6. The vented injection molding machine of claim 5, wherein: the lower extreme fixedly connected with solid fixed ring (406) of spring (405), just gu fixed ring (406) with the connected mode between exhaust duct (401) is fixed connection, is located one of upside limit disc (404) upper end center department is fixed to be inlayed connecting rod (407), just connecting rod (407) run through exhaust duct (401), spout (408) that a plurality of groups are circumference equidistance distribution have been seted up in the outside of connecting rod (407), a plurality of groups the inside of spout (408) has all movably inlayed ball (409), just ball (409) with the connected mode between exhaust duct (401) is rotation connection, ball (409) are through spout (408) with connecting rod (407) roll connection, exhaust duct (401) the outside has been seted up a plurality of groups and has been circumference equidistance distributed exhaust hole (410).

7. The vented injection molding machine of claim 6, wherein: the inside fixed mounting of rectangle pipe (501) has filter (7), the tip activity of rectangle pipe (501) has inlayed active carbon filter core (8), just filter (7) are located the left side of active carbon filter core (8), the tip fixedly connected with flange board (10) of rectangle pipe (501), the right-hand member fixed mounting of active carbon filter core (8) has fixed plate (11), just fixed plate (11) can inlay in flange board (10), two spacing subassembly (9) that are symmetric distribution are installed to the right-hand member face of flange board (10).

8. The vented injection molding machine of claim 7, wherein: the utility model discloses a filter, including filter board (7), spout (408) and filter board (601), left side of filter board (7) with install mediation subassembly (6) between spout (408), mediation subassembly (6) including install in grid board (601) on filter board (7) right side, the upper end of spout (408) is located outside fixed mounting of exhaust duct (401) has bracing piece (602), just the right-hand member of bracing piece (602) with grid board (601) fixed connection, the upper end fixed mounting of bracing piece (602) has stiffener (603), just stiffener (603) with the connected mode between grid board (601) is fixed connection as well, the outside fixed mounting of grid board (601) has two spacing guide (604) that are symmetrical distribution, just spacing guide (604) with connected mode between rectangular duct (501) is fixed connection, grid board (601) orientation a side terminal surface mounting of filter board (7) has brush strip (605) that a plurality of groups are equidistant distribution, just brush strip (605) with filter board (7) activity laminating.

9. The vented injection molding machine of claim 7, wherein: limiting component (9) including fixed mounting in spacing free bearing (901) of flange board (10) right-hand member face, limiting plate (902) are installed to the inboard of spacing free bearing (901), just limiting plate (902) pass through locating shaft (903) with spacing free bearing (901) rotate and are connected, the right-hand member face fixed mounting of locating shaft (903) has shifting block (904), the left end face of limiting plate (902) respectively with flange board (10) with the right-hand member face activity butt of fixed plate (11).

10. The vented injection molding machine of claim 6, wherein: the exhaust gas

A baffle plate (12) is fixedly sleeved on the outer side of the guide pipe (401) and positioned on the upper side of the exhaust hole (410),

and the shape of the baffle plate (12) is skirt-shaped.