CN212826502U

CN212826502U - Injection molding machine exhaust-gas treatment recovery unit

Info

Publication number: CN212826502U
Application number: CN202021258389.7U
Authority: CN
Inventors: 梁孝峰; 程胜国
Original assignee: Foshan Jinsaifu Plastic Products Co ltd
Current assignee: Foshan Jinsaifu Plastic Products Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-30
Anticipated expiration: 2030-06-30

Abstract

The application relates to an injection molding machine waste gas treatment and recovery device, which comprises a fixing frame, a gas collecting hood and an exhaust pipe, wherein the fixing frame is erected on a plurality of injection molding machine bodies, the top and the bottom of the gas collecting hood are both arranged in an opening way, the bottom of the gas collecting hood is fixedly arranged above the fixing frame, the length direction of the gas collecting hood is the same as that of the fixing frame, one end of the exhaust pipe is communicated with the top of the gas collecting hood, an exhaust fan is arranged in the exhaust pipe, the outer side wall of the exhaust pipe is provided with two folding, and the two folding plates are symmetrically arranged along the central axis of the exhaust tube, one side of the folding plate far away from the exhaust tube is fixedly connected with the inner side wall of the gas collecting hood, the two sides of the folding plate in the length direction of the gas collecting hood are respectively and correspondingly attached to the two inner side walls opposite to the gas collecting hood, and the folding plate can be folded along the length direction of the gas-collecting hood, and one side of the top of the gas-collecting hood is provided with a driving mechanism. This application has the effect of increase exhaust-gas treatment recovery unit's application scope.

Description

Injection molding machine exhaust-gas treatment recovery unit

Technical Field

The application relates to the technical field of waste gas treatment of injection molding machines, in particular to a waste gas treatment and recovery device of an injection molding machine.

Background

An injection molding machine is a main molding device for making thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and the injection molding machine can heat the plastics and apply high pressure to the molten plastics so as to inject the molten plastics to fill a die cavity of the die. When the injection molding machine works, granular or powdery plastic is generally added into a charging barrel, the plastic is in a molten state through the rotation of a screw rod in the charging barrel and the heating of the charging barrel, then the rotation of the screw rod drives the plastic to move forwards, so that the plastic is ejected from a nozzle at high pressure and high speed, injected into a closed mold, and solidified into a required molded plastic product after pressure maintaining and cooling. However, in this process, a large amount of exhaust gas is generated, including exhaust gas generated during drying of the drying cylinder and exhaust gas generated during extrusion of the injection molding machine itself. Therefore, the injection molding machine waste gas treatment and recovery device is produced at the same time.

Present injection molding machine exhaust-gas treatment recovery unit, the utility model discloses an injection molding machine exhaust-gas treatment recovery unit of authorized bulletin number CN209794404U, establish gas collecting channel 1, the 1 top intercommunication of gas collecting channel above the discharging pipe of injection molding machine 9 including the cover and be provided with connecting pipe 2, install fan 3 in the connecting pipe 2, the one end intercommunication that the gas collecting channel was kept away from to connecting pipe 2 has exhaust tube 4, and fan 3 absorbs the connecting pipe with the waste gas in the gas collecting channel, and the rethread exhaust tube 4 discharges outdoors.

In view of the above-mentioned related art, each injection molding machine 9 separately adopts one exhaust gas recovery device to absorb exhaust gas, and the inventor believes that when a plurality of injection molding machines work side by side simultaneously, a plurality of exhaust gas recovery devices are required to work simultaneously to absorb exhaust gas, and the defect that the application range of the exhaust gas recovery device is small exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an injection molding machine exhaust-gas treatment recovery unit is favorable to increasing exhaust-gas treatment recovery unit's application scope.

The above object of the present invention can be achieved by the following technical solutions:

the injection molding machine waste gas treatment and recovery device comprises a fixing frame, gas collecting hoods and an exhaust pipe, wherein the fixing frame is used for being erected on a plurality of injection molding machine bodies, the top and the bottom of each gas collecting hood are both provided with openings, the bottom of each gas collecting hood is fixedly arranged above the fixing frame, and the length direction of each gas collecting hood is the same as that of the fixing frame;

the one end of exhaust tube be linked together with the top of gas collecting channel, the exhaust tube in install the air exhauster, the lateral wall of exhaust tube be provided with the folded sheet that two levels set up, and two the folded sheet follow the axis of exhaust tube is the symmetry and sets up, the folded sheet keep away from one side of exhaust tube with the inside wall fixed connection of gas collecting channel, the folded sheet be in gas collecting channel length direction on both sides correspond respectively with two inside walls relative of gas collecting channel laminate each other, just the folded sheet can be followed the length direction folding of gas collecting channel, gas collecting channel top one side be provided with and be used for the drive the exhaust tube along the folding actuating mechanism of length direction of gas collecting channel.

Through adopting the above scheme, the top and the bottom of gas collecting channel are uncovered setting, the bottom of gas collecting channel is fixed to be set up in the mount, the waste gas that produces when being favorable to the injection molding machine to mould plastics gathers in the gas collecting channel, install the air exhauster in the exhaust pipe, the air exhauster provides the power supply of absorption waste gas, be favorable to absorbing the waste gas in the gas collecting channel, the lateral wall of exhaust pipe is provided with two folded sheets, make the length direction that a exhaust pipe can follow the fixed cowling remove, thereby realize the waste gas that extracts a plurality of injection molding machines and produce, and the folded sheet both sides are laminated with the gas collecting channel inside wall each other, be favorable to reducing waste gas and leak from the folded sheet, and be.

Further, actuating mechanism include the fixing base, be connecting rod and the subassembly that sways that the level set up, the fixing base fixed set up in the lateral wall of mount, the length direction of connecting rod with gas collecting channel length direction the same, the connecting rod slide through a base set up in the fixing base, the one end of connecting rod with exhaust tube lateral wall fixed connection, the fixed motor that is provided with of lateral wall of fixing base, the output shaft of motor pass through the subassembly drive sways the connecting rod along the orientation or keep away from the direction reciprocating motion of exhaust tube.

Through adopting above-mentioned scheme, the top of fixing base is provided with the motor, and the output shaft of motor passes through the direction reciprocating motion that sways the subassembly drive connecting rod along the orientation or keep away from the exhaust tube, and during the starter motor, the output shaft drive of motor sways the subassembly motion for it drives connecting rod reciprocating motion in the base to sway the subassembly, and the one end and the exhaust tube lateral wall fixed connection of connecting rod are favorable to realizing that the connecting rod drives the exhaust tube in gas collecting channel top reciprocating motion.

Furthermore, the swinging assembly comprises a disc and a swinging arm, the disc is vertically arranged, and the output shaft of the motor passes through the fixed seat and is coaxially and fixedly connected with the central position of the disc, the disc deviates from the end surface of the motor and is eccentrically provided with an eccentric block, one side of the fixed seat deviating from the motor is fixedly provided with a horizontally arranged connecting shaft, the connecting point of the connecting shaft and the fixed seat and the center of the disc are positioned on the same straight line in the vertical direction, the swing arm is arranged on the fixed seat in a swinging way through the connecting shaft, and the swing arm swings along the direction towards or away from the exhaust tube, a sliding groove is arranged on the side surface of the swing arm in a penetrating way, the length direction of the sliding groove is the same as that of the swing arm, and the eccentric block is connected with the swing arm in a sliding mode through the sliding groove in a penetrating mode.

Through adopting above-mentioned scheme, the vertical setting of disc, the output shaft of motor pass fixing base and disc central point and put coaxial fixed connection, when the motor normally starts, the output shaft that is favorable to the motor drives the disc rotation, and the disc deviates from the terminal surface off-centre of motor and is provided with the eccentric block, and when the disc was rotatory, the eccentric block moved along with the rotation of disc, and the eccentric block slided in the spout, realized driving swing arm wobbling effect.

Furthermore, the swing arm comprises a swing sub-arm and a swing part, a through hole is formed in one end of the swing sub-arm, the connecting shaft is rotatably connected with the swing sub-arm through the through hole in a penetrating mode, and the sliding groove is formed in the swing sub-arm;

the swing part is fixedly arranged at one end of the through hole, which is arranged on the swing sub-arm, the swing part faces the end of the connecting rod, a swing tooth is arranged at one side of the connecting rod, which faces the swing part, a moving tooth is correspondingly arranged at one side of the swing part, and the swing tooth is meshed with the moving tooth.

Through adopting above-mentioned scheme, the through-hole has been seted up to the one end of swing sub-arm, the connecting axle rotates with the swing sub-arm through wearing to locate the through-hole and is connected, the fixed one end that is equipped with the through-hole that sets up in the swing sub-arm of swing portion, when the eccentric block drove the swing of swing sub-arm, at this moment, the swing sub-arm drove the swing portion along the direction swing of orientation or keeping away from the exhaust tube, because the swing tooth intermeshing of swing portion and the removal tooth of connecting rod, when the swing portion swing, can realize that the swing portion drove the connecting rod and reciprocate to slide, finally the connecting rod drove the length direction of exhaust tube along the.

Further, the lateral wall of base with fixing base fixed connection, the base orientation one side of swing portion wear to be equipped with the shifting chute along base length direction, the length direction of shifting chute with the length direction of link the same, the base fix along the length direction of shifting chute and be provided with a plurality of solid fixed rings, the link wear to locate a plurality of solid fixed rings and with the shifting chute slide and be connected, just the one end of link extend to outside the shifting chute with exhaust tube fixed connection.

Through adopting above-mentioned scheme, the shifting chute is worn to be equipped with by the base, and the connecting rod slides with the shifting chute and is connected, is favorable to strengthening the gliding stability of connecting rod translation, and the one end of connecting rod extends to outside the shifting chute and exhaust tube fixed connection, is favorable to realizing that the connecting rod drives the exhaust tube and slides the motion in the space that slides, is favorable to enlarging the scope of the absorption waste gas of exhaust tube.

Furthermore, the guide way has been seted up along base length direction to the removal tank bottom, the connecting rod deviate from swing arm one side correspond and be provided with the guide block, the guide block with the guide way slide and be connected.

Through adopting above-mentioned scheme, the guide block slides with the guide way and is connected, is favorable to strengthening the gliding stability of connecting rod in the sliding tray of base.

Furthermore, the exhaust tube comprises a connecting sub-tube and a corrugated sub-tube, the side wall of the connecting sub-tube is fixedly connected with the side wall of the folding plate, the exhaust fan is arranged in the connecting sub-tube, the connecting sub-tube is communicated with the top of the gas collecting hood, one end of the corrugated sub-tube is fixedly connected with one end of the connecting sub-tube and is communicated with the one end of the connecting sub-tube, and the other end of the corrugated sub-tube is communicated with a filtering component.

By adopting the above scheme, the exhaust tube is including connecting sub-pipe and ripple sub-pipe, and the air exhauster setting is in connecting sub-pipe, and the lateral wall of folded sheet and the lateral wall fixed connection of connecting sub-pipe realize being connected of exhaust tube and folded sheet, and the ripple sub-pipe keeps away from the one end intercommunication of connecting sub-pipe and is provided with filtering component, and filtering component is favorable to reducing the exhaust pollution environment.

Furthermore, the filtering component comprises a filtering water tank and an exhaust pipe, the filtering water tank is arranged on one side of the fixing frame, the other end of the corrugated sub pipe is communicated with one side of the top of the filtering water tank and extends to the bottom of the filtering water tank, the exhaust pipe is arranged on one side of the top of the filtering water tank, one end of the exhaust pipe is communicated with the filtering water tank, and the other end of the exhaust pipe is arranged outside the filtering water tank.

By adopting the above scheme, filtering component is including filtering water tank and blast pipe, the one end of ripple sub-pipe is linked together and extends to the filtering water tank bottom with filtering water tank top one side, waste gas filters through ripple sub-pipe inflow filtering water tank bottom, the one end and the filtering water tank of blast pipe are linked together, the blast pipe other end is arranged in outside the filtering water tank, waste gas is discharged outdoor through the blast pipe after the filtering water tank filters again, the realization carries out recovery processing to waste gas, be favorable to reducing the pollution of waste gas to the environment.

In summary, the following steps:

because the mount erects in the top of a plurality of injection molding machines, the gas collecting channel sets up in the top of mount, when a plurality of injection molding machines simultaneous workings, the output shaft drive disc of motor is rotatory, the disc drives the eccentric block motion, the eccentric block drives the relative fixing base swing of swing arm, because the swing tooth of oscillating portion and the removal tooth intermeshing of connecting rod, so the swing arm drives the connecting rod and follows the reciprocating translation of shifting chute, the one end and the exhaust tube fixed connection of connecting rod, finally realized the length direction internal reciprocating sliding of exhaust tube along the gas collecting channel, be favorable to increasing exhaust-gas treatment recovery unit's application scope.

Drawings

Fig. 1 is a schematic view of the overall structure of an exhaust gas recovery device according to an embodiment of the present application.

Fig. 2 is a bottom view of the exhaust gas recovery device according to the embodiment of the present application.

Fig. 3 is an enlarged view of a portion a of fig. 1.

Description of reference numerals: 1. an injection molding machine body; 2. a fixed mount; 3. a gas-collecting hood; 4. an air exhaust pipe; 41. a corrugated sub-pipe; 42. connecting the sub-pipes; 43. an exhaust fan; 5. folding the board; 51. folding the daughter board; 52. connecting the daughter board; 6. a fixed seat; 61. a motor; 7. a connecting rod; 71. a base; 72. a fixing ring; 73. moving the teeth; 74. a guide block; 8. a disc; 81. an eccentric block; 9. swinging arms; 91. a swing sub-arm; 92. a swing portion; 93. a limiting block; 94. a chute; 95. oscillating the teeth; 96. a filtering water tank; 97. and (4) exhausting the gas.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Example (b):

referring to fig. 1 and 2, the waste gas treatment and recovery device for the injection molding machine is applied to the waste gas treatment of the injection molding of a plurality of injection molding machines. A plurality of injection molding machine bodies 1 are erected on the ground side by side. The injection molding machine waste gas treatment and recovery device comprises a fixing frame 2 erected above discharge barrels of a plurality of injection molding machine bodies 1, and the length direction of the fixing frame 2 is the same as the side-by-side direction of the injection molding machine bodies 1. The top of mount 2 is provided with gas collecting channel 3, and the top and the bottom of gas collecting channel 3 all are uncovered setting, and the length direction of gas collecting channel 3 is the same with the length direction of mount 2, and the uncovered bore in top of gas collecting channel 3 and the uncovered bore ratio scope in bottom of gas collecting channel 3 are 0.5-0.7, and in this embodiment, the uncovered bore in top of gas collecting channel 3 and the uncovered bore ratio scope in 3 bottoms of gas collecting channel are 0.6, are favorable to gathering waste gas in gas collecting channel 3 better.

The top of the gas collecting hood 3 is open and provided with a vertically arranged exhaust tube 4, wherein the exhaust tube 4 comprises a connecting sub-tube 42 and a corrugated sub-tube 41 which are communicated with each other. The connecting sub-pipe 42 is a square pipe, and the corrugated sub-pipe 41 is a hose. In the present embodiment, in order to further improve the convenience of installing the bellows tube 41, a frame (not shown) for hanging the bellows tube 41 may be provided on one side of the injection molding machine body 1. An exhaust fan 43 is arranged in the connecting sub-pipe 42, the connecting sub-pipe 42 is communicated with the top of the gas collecting hood 3, and the exhaust fan 43 is arranged for sucking the waste gas collected in the active hood into the corrugated sub-pipe 41.

Specifically, the top of the gas collecting channel 3 is provided with two folding plates 5 which are horizontally arranged, and the length direction of the folding plates 5 is the same as that of the gas collecting channel 3. The folding plate 5 is formed by hinging a plurality of folding sub-plates 51 end to end, the two sides of the folding sub-plates 51 in the width direction of the folding sub-plates are respectively and fixedly connected with a connecting sub-plate 52, one of the connecting sub-plates 52 is fixedly connected with the inner side wall of the gas collecting hood 3, and the other connecting sub-plate 52 is fixedly connected with the outer side wall of the connecting sub-pipe 42. The folding plate 5 is folded along the length direction of the gas collecting hood 3, the two opposite side walls of the folding sub-plate 51 in the length direction of the folding sub-plate can be always attached to the side wall of the gas collecting hood 3, the arrangement is favorable for reducing the scattering condition of waste gas in the gap between the side edge of the folding plate 5 and the side wall of the gas collecting hood 3, and meanwhile, the bottoms of the folding sub-plates 51 are all in the same horizontal plane. When the folding sub-board 51 is folded, the connector sub-pipe 42 can be located at one side of the gas collecting channel 3; when the folding plate 5 is in a flat state, the side wall of the folding plate 5 in the length direction is attached to the inner side wall of the gas-collecting hood 3, and the connecting sub-pipe 42 is located in the middle of the gas-collecting hood 3.

Specifically, referring to fig. 1 and 3, the exhaust tube 4 is reciprocally slid along the length direction of the gas collecting channel 3 by a driving mechanism, wherein the driving mechanism includes a fixing base 6, a connecting rod 7 and a swinging assembly. The fixing base 6 is fixedly arranged on the outer side wall of the gas collecting hood 3, the side wall of the fixing base 6 is fixedly provided with a motor 61, and an output shaft of the motor 61 is horizontally arranged. The swing assembly comprises a disc 8 and a swing arm 9, the disc 8 is vertically arranged on the side wall of the fixed seat 6 deviating from the motor 61, the output shaft of the motor 61 horizontally penetrates through the fixed seat 6 and is fixedly connected with the disc 8 in the same axial center, and the output shaft of the motor 61 drives the disc 8 to rotate. The fixed connecting axle that is provided with the level setting in one side that deviates from motor 61 of fixing base 6, the connecting axle is located same straight line with disc 8 center in vertical direction with fixing base 6's connecting point, and the through-hole is worn to be equipped with by the lateral wall of swing arm 9, and the connecting axle is kept away from the one end of fixing base 6 and is passed the through-hole, and the swing arm 9 that is equipped with the through-hole can be the relative connecting axle swing. In order to further improve the stability of being connected between connecting axle and the through-hole, the through-hole is worn out and fixedly connected with stopper 93 to the one end that the fixing base 6 was kept away from to the connecting axle, and stopper 93 restricts the through-hole and breaks away from with the connecting axle. Specifically, the swing arm 9 includes a swing sub-arm 91 and a swing portion 92, wherein the through hole is formed at one end of the swing sub-arm 91, and the swing portion 92 is fixedly connected to one end of the swing sub-arm 91 at which the through hole is formed. The end face of the disc 8 facing away from the motor 61 is fixed and eccentrically provided with an eccentric mass 81. The swing sub-arm 91 is provided with a sliding groove 94 along the length direction of the swing sub-arm 91, and two ends of the sliding groove 94 are closed. The eccentric block 81 on the disk 8 is arranged in the sliding groove 94, and the eccentric block 81 is connected with the sliding groove 94 in a sliding manner.

When the output shaft of the motor 61 drives the disc 8 to rotate, the disc 8 drives the eccentric block 81 to rotate, the eccentric block 81 slides in the sliding slot 94, the eccentric block 81 rotates once to drive the swing sub-arm 91 to swing and reciprocate once, and the swing sub-arm 91 drives the swing portion 92 to swing once.

The side wall of the fixed seat 6 is fixedly connected with a horizontally arranged base 71, and the length direction of the base 71 is the same as the moving direction of the exhaust tube 4. Two fixing rings 72 are fixedly connected to the base 71 along the length direction of the base, one end of the connecting rod 7 is fixedly connected to the side wall of the exhaust tube 4, the other end of the connecting rod 7 penetrates through the side wall of the gas collecting hood 3 and penetrates through the two fixing rings 72, and the connecting rod 7 can slide relative to the two fixing rings 72 along the direction towards or away from the connecting sub-tube 42. In order to further improve the stability of the connection between the base 71 and the connecting rod 7, a moving groove is formed in the top of the base 71, two ends of the moving groove are arranged in an opening manner, and the connecting rod 7 is connected with the moving groove in a sliding manner. Connecting rod 7 is provided with towards one side at 6 tops of fixing base 73 and moves tooth 73, the one side correspondence that swing portion 92 deviates from swing sub-arm 91 is provided with swing tooth 95, move tooth 73 and swing tooth 95 intermeshing, when swing portion 92 swings, swing portion 92 drives connecting rod 7 along the length direction reciprocating sliding of shifting chute, realize that connecting rod 7 drives exhaust tube 4 along the length direction reciprocating sliding of gas collecting channel 3, the guide way has been seted up along base 71 length direction in the bottom of shifting chute, one side correspondence that connecting rod 7 deviates from swing arm 9 is fixed and is provided with guide block 74, guide block 74 slides with the guide way and is connected, be favorable to further reinforcing the gliding stability of connecting rod 7, can improve the stability of meshing between moving tooth 73 and the swing tooth 95 simultaneously.

It is worth mentioning that the other end of the corrugated sub-pipe 41 is connected with a filtering component. The filtering component comprises a filtering water tank 96 and an exhaust pipe 97, the filtering water tank 96 is arranged on one side of the fixing frame 2, the other end of the corrugated sub-pipe 41 is communicated with one side of the top of the filtering water tank 96 and extends to the bottom of the filtering water tank 96 for waste gas filtering, the exhaust pipe 97 is arranged on one side of the top of the filtering water tank 96, one end of the exhaust pipe 97 is communicated with the filtering water tank 96, and the other end of the exhaust pipe 97 is arranged outside the filtering water tank.

The working principle of the injection molding machine waste gas treatment and recovery device is as follows:

when two injection molding machine bodies 1 which are arranged side by side are simultaneously subjected to injection molding processing, the motor 61 on the fixed seat 6 is started, the output shaft of the motor 61 drives the disc 8 to rotate, the eccentric block 81 on the disc 8 swings and the swing sub-arm 91 of the swing arm 9 drives the swing part 92 to swing, and because the swing part 92 is meshed with the connecting rod 7, when the swing part 92 swings, the swing part 92 drives the connecting rod 7 to slide along the moving groove in a reciprocating manner, so that the connecting rod 7 drives the connecting sub-pipe 42 to slide along the length direction of the gas collecting hood 3 in a reciprocating manner.

Through the above operation, the exhaust fan 43 in the connector sub-pipe 42 sucks the exhaust gas generated during the injection molding operation of the injection molding machine working side by side, which is beneficial to increasing the application range of the exhaust gas treatment and recovery device.

When only one injection molding machine works, a worker can start the motor 61, the motor 61 drives the connecting rod 7 to move towards the injection molding machine through the swinging assembly, so that the exhaust pipe 4 is positioned above the injection molding machine in a working state, then the motor 61 stops working, and at the moment, the exhaust pipe 4 is kept above the injection molding machine to suck waste gas generated by the injection molding machine.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an injection molding machine exhaust-gas treatment recovery unit which characterized in that: the injection molding machine comprises a fixing frame (2) used for being erected on a plurality of injection molding machine bodies (1), a gas collecting hood (3) and an exhaust pipe (4), wherein the top and the bottom of the gas collecting hood (3) are both arranged in an opening mode, the bottom of the gas collecting hood (3) is fixedly arranged above the fixing frame (2), and the length direction of the gas collecting hood (3) is the same as that of the fixing frame (2);

one end of the exhaust pipe (4) is communicated with the top of the gas-collecting hood (3), an exhaust fan (43) is arranged in the exhaust pipe (4), the outer side wall of the air exhaust pipe (4) is provided with two folding plates (5) which are horizontally arranged, and the two folding plates (5) are symmetrically arranged along the central axis of the exhaust tube (4), one side of the folding plate (5) far away from the exhaust tube (4) is fixedly connected with the inner side wall of the gas collecting hood (3), the two sides of the folding plate (5) in the length direction of the gas-collecting hood (3) are respectively and correspondingly attached to the two inner side walls opposite to the gas-collecting hood (3), and the folding plate (5) can be folded along the length direction of the gas-collecting hood (3), and a driving mechanism for driving the exhaust tube (4) to be folded along the length direction of the gas collecting hood (3) is arranged on one side of the top of the gas collecting hood (3).

2. The exhaust gas treatment and recovery device of the injection molding machine according to claim 1, wherein: actuating mechanism include fixing base (6), be connecting rod (7) and the subassembly that sways that the level set up, fixing base (6) fixed set up in the lateral wall of mount (2), the length direction of connecting rod (7) with gas collecting channel (3) length direction the same, connecting rod (7) slide through a base (71) set up in fixing base (6), the one end of connecting rod (7) with exhaust tube (4) lateral wall fixed connection, the lateral wall of fixing base (6) fixed motor (61) that is provided with, the output shaft of motor (61) pass through the subassembly drive sways connecting rod (7) are along orientation or keep away from the direction reciprocating motion of exhaust tube (4).

3. The exhaust gas treatment and recovery device of the injection molding machine according to claim 2, wherein: the swing assembly comprises a disc (8) and a swing arm (9), the disc (8) is vertically arranged, an output shaft of the motor (61) penetrates through the fixed seat (6) and is coaxially and fixedly connected with the central position of the disc (8), an eccentric block (81) is eccentrically arranged on the end surface of the disc (8) departing from the motor (61), a horizontally arranged connecting shaft is fixedly arranged on one side of the fixed seat (6) departing from the motor (61), the connecting point of the connecting shaft and the fixed seat (6) and the center of the disc (8) are positioned on the same straight line in the vertical direction, the swing arm (9) is arranged on the fixed seat (6) through the swinging of the connecting shaft, the swing arm (9) swings in the direction towards or away from the exhaust tube (4), and a sliding groove (94) is arranged on the side surface of the swing arm (9) in a penetrating way, the length direction of the sliding groove (94) is the same as that of the swing arm (9), and the eccentric block (81) is connected with the swing arm (9) in a sliding manner through the sliding groove (94).

4. The exhaust gas treatment and recovery device of the injection molding machine according to claim 3, wherein: the swing arm (9) comprises a swing sub-arm (91) and a swing part (92), a through hole is formed in one end of the swing sub-arm (91), the connecting shaft is rotatably connected with the swing sub-arm (91) through the through hole in a penetrating mode, and the sliding groove (94) is formed in the swing sub-arm (91);

swing portion (92) fixed set up in swing sub-arm (91) be equipped with the one end of through-hole, swing portion (92) orientation the one end of connecting rod (7) be provided with swing tooth (95), connecting rod (7) orientation the one side correspondence of swing portion (92) be provided with and remove tooth (73), just swing tooth (95) with remove tooth (73) intermeshing.

5. The exhaust gas treatment and recovery device of the injection molding machine according to claim 4, wherein: base (71) the lateral wall with fixing base (6) fixed connection, base (71) orientation one side of swing portion (92) wear to be equipped with the shifting chute along base (71) length direction, the length direction of shifting chute with the length direction of connecting rod (7) the same, base (71) fix along the length direction of shifting chute and be provided with a plurality of solid fixed rings (72), connecting rod (7) wear to locate a plurality of solid fixed rings (72) and with the shifting chute slide and be connected, just the one end of connecting rod (7) extend to outside the shifting chute with exhaust tube (4) fixed connection.

6. The exhaust gas treatment and recovery device of the injection molding machine according to claim 5, wherein: the movable slot bottom seted up the guide way along base (71) length direction, connecting rod (7) deviate from swing arm (9) one side correspond and be provided with guide block (74), guide block (74) with the guide way slide and be connected.

7. The exhaust gas treatment and recovery device of the injection molding machine according to claim 1, wherein: exhaust tube (4) including connecting sub-pipe (42) and ripple sub-pipe (41), the lateral wall of connecting sub-pipe (42) with the lateral wall fixed connection of folded sheet (5), air exhauster (43) set up in connecting sub-pipe (42) in, just connecting sub-pipe (42) with gas collecting channel (3) top be linked together, the ripple sub-pipe (41) one end with the one end fixed connection of connecting sub-pipe (42) and be linked together, the other end intercommunication of ripple sub-pipe (41) be provided with filtering component.

8. The exhaust gas treatment and recovery device of the injection molding machine according to claim 7, wherein: the filter assembly comprises a filter water tank (96) and an exhaust pipe (97), the filter water tank (96) is arranged on one side of the fixing frame (2), the other end of the corrugated sub pipe (41) is communicated with one side of the top of the filter water tank (96) and extends to the bottom of the filter water tank (96), the exhaust pipe (97) is arranged on one side of the top of the filter water tank (96), one end of the exhaust pipe (97) is communicated with the filter water tank (96), and the other end of the exhaust pipe (97) is arranged outside the filter water tank (96).