CN113134446A

CN113134446A - Middle recovery mechanism, plastic spraying recovery device and plastic spraying equipment

Info

Publication number: CN113134446A
Application number: CN202110431899.2A
Authority: CN
Inventors: 卢秋华
Original assignee: Yueqing Zuzichu Biotechnology Co ltd
Current assignee: Yueqing Zuzichu Biotechnology Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-07-20

Abstract

The invention relates to the field of plastic-spraying recycling equipment, in particular to an intermediate recycling mechanism, a plastic-spraying recycling device and a plastic-spraying device. The intermediate recycling device is arranged between a primary recycling device and a secondary recycling device, and comprises a recycling body with a channel inside. , the two ends are respectively connected to the primary recovery device and the secondary recovery device; at least one filter mechanism is arranged at one end of the recovery body close to the secondary recovery device, the end of the recovery body close to the primary recovery device is provided with an opening, and the filter mechanism opens There are multiple communication parts connecting the channel with the primary recovery device and the secondary recovery device; the collection assembly includes a collection mechanism and a cleaning mechanism, and the collection mechanism is connected to the bottom section of the filter mechanism or the recovery body located in the radial extension direction of the channel. On the bottom wall, the cleaning mechanism is arranged in the recovery body, and the cleaning mechanism includes a driving part and a cleaning part connected with the driving part. The driving part starts when it is powered on to drive the cleaning part to rotate. Reduce economic losses and environmental pollution.

Description

Middle recovery mechanism, plastic spraying recovery device and plastic spraying equipment

Technical Field

The invention relates to the field of plastic spraying recovery equipment, in particular to an intermediate recovery mechanism, a plastic spraying recovery device and plastic spraying equipment.

Background

The plastic spraying is a surface treatment method for spraying plastic powder on parts under the action of an electric field by utilizing an electrostatic generator to charge the plastic powder. Under the action of an electric field, charged plastic powder can be uniformly adsorbed on the surface of a workpiece to form a powdery coating, the powdery coating is leveled and cured after being baked at high temperature, and plastic particles can be melted into a layer of compact final protective coating with different effects and firmly attached to the surface of the workpiece. Has the advantages of advanced process, energy conservation, high efficiency, safety, reliability, bright color and the like.

Can produce a large amount of dust when carrying out the operation of spraying plastics, in order to reduce the waste of dust and avoid the dust to cause the pollution to the air among the current industry, need add the recovery unit who retrieves the powder behind the spraying plastics equipment. Current recovery unit generally includes the two-stage recovery, divide into one-level recovery unit and second grade recovery unit, pass through the pipe connection between one-level recovery unit and the second grade recovery unit, general one-level recovery unit sets up the air intake position at the pipeline, and second grade recovery unit sets up the air outlet position at the pipeline, general one-level recovery unit can include one or can also include a plurality ofly according to the colour difference of moulding the powder, when one-level recovery unit generally includes a plurality ofly among the current recovery plant that moulds plastics, every one-level recovery unit is respectively through a pipe connection to second grade recovery unit. A large amount of plastic powder can be retrieved to one-level recovery unit, and in the little part mould the powder and can enter into second grade recovery unit through the pipeline, when only using the plastic powder of a colour to carry out the plastic-blasting, can play the effect of further recovery in the second grade recovery unit, reach the purpose that improves the rate of recovery. However, the inventor of the present invention has found that when plastic powder with different colors is used for plastic spraying, a large amount of plastic powder enters the secondary recycling device through the pipeline when the plastic powder recycled in the primary recycling device is collected and cleaned, and since the secondary recycling device is connected to a plurality of primary recycling devices with different colors, a mixture of plastic powder with different colors is recycled in the secondary recycling device, and cannot be recycled continuously, but is directly treated as waste, which causes serious loss and pollution.

Therefore, a new recycling device for molding powder is urgently needed to solve the above technical problems.

Disclosure of Invention

The invention aims to solve the problems of serious economic loss and environmental pollution caused by the fact that when plastic powder in a primary recovery device is collected and cleaned by a plastic powder recovery device in the prior art, a large amount of plastic powder enters a secondary recovery device through a pipeline, and an optimized intermediate recovery mechanism, a plastic spraying recovery device and plastic spraying equipment capable of reducing economic loss and environmental pollution are provided.

In order to achieve the above object, one of the objects of the present invention is to provide an intermediate recovery mechanism disposed between a primary recovery device and a secondary recovery device, the intermediate recovery mechanism comprising:

the recycling body is internally provided with a channel, and two ends of the recycling body are respectively connected with the primary recycling device and the secondary recycling device;

the filtering mechanism is arranged at one end of the recovery body close to the secondary recovery device, an opening is formed at one end of the recovery body close to the primary recovery device, and a plurality of communicating parts for communicating the channel with the primary recovery device and the secondary recovery device are formed in the filtering mechanism;

the collecting assembly comprises a collecting mechanism and a cleaning mechanism, wherein the collecting mechanism is connected to the bottom section of the filtering mechanism or the bottom wall of the recovery body, which is located on the radial extending direction of the channel, the cleaning mechanism is arranged in the recovery body and comprises a driving piece and a cleaning part connected with the driving piece, the driving piece is started when the driving piece is powered on, and the cleaning part is driven by the driving piece to clean plastic powder on the filtering mechanism.

Preferably, the middle recovery mechanism is detachably arranged in a pipeline communicated with the first-stage recovery device and the second-stage recovery device, the recovery body is a cylinder matched with the inner diameter of the pipeline, a notch is formed in the bottom section of the filtering mechanism, and the collecting mechanism is detachably connected to the notch.

Preferably, the intermediate recovery mechanism is provided with a two-section pipeline communicating the primary recovery device and the secondary recovery device, and comprises a second pipeline and at least one first pipeline;

one end of any one first pipeline is correspondingly connected with one primary recovery device, one end of the second pipeline, which is far away from the first pipeline, is connected with a second recovery device, the other ends of all the first pipelines are connected with the other end of the second pipeline, and one plastic spraying recovery device is arranged in any one first pipeline; or

The pipeline is two segmentations, including first pipeline and second pipeline, one-level recovery unit is connected to the one end of first pipeline, keeping away from of second pipeline second grade recovery unit is connected to one end of one-level recovery unit, middle recovery mechanism is connected the other end of first pipeline with between the other end of second pipeline.

Preferably, the intermediate recovery mechanism, the filter mechanism is a mesh screen, and the communicating part is a mesh;

the two filtering mechanisms are respectively arranged at two ends of the recovery body, wherein the aperture of the communicating part of the filtering mechanism close to one end of the primary recovery device of the recovery body is not smaller than the aperture of the communicating part of the filtering mechanism close to one end of the secondary recovery device.

Preferably, the middle recovery mechanism is a cloth bag.

Preferably, in the intermediate recovery mechanism, the driving member is a rotating motor, the cleaning member is a brush, and the cleaning member is mounted on a distal end of a rotating shaft of the rotating motor.

Preferably, the intermediate recovery mechanism further includes:

and the driving piece is fixed on the fixing piece.

Preferably, in the intermediate recovery mechanism, the fixing member is a fixing column perpendicular to the axis of the channel, and a gap is formed between an outer side wall of the fixing column in the radial extension direction and an inner wall of the channel.

Another objective of the present invention is to provide a recycling device for plastic spraying, which comprises a secondary recycling device, at least one primary recycling device, a pipeline and a blower, wherein the at least one primary recycling device is communicated with the secondary recycling device through the pipeline, the blower is disposed at an outer end of an air outlet of the pipeline, the primary recycling device is disposed at an air inlet of the pipeline, and the secondary recycling device is disposed at an inner end of the air outlet of the pipeline; also comprises at least one intermediate recovery mechanism as described in any one of the above.

The invention also aims to provide plastic spraying equipment which comprises a plastic spraying machine and the plastic spraying recovery device.

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

1. according to the intermediate recovery mechanism, the filtering mechanism is used for intercepting the molding powder, and the driving part drives the cleaning part to clean the molding powder on the filtering mechanism, so that the molding powder falls into the collection mechanism under the action of gravity, the molding powder is further recovered, the problems of economic loss and environmental pollution caused by the fact that a large amount of molding powder with different colors directly reaches the secondary recovery device through a pipeline are solved, and the recovery utilization rate of the molding powder is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of an intermediate recovery mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a filter mechanism of the intermediate recovery mechanism of FIG. 1;

FIG. 3 is another schematic view of an intermediate recovery mechanism in an embodiment of the present invention;

FIG. 4 is a schematic structural view of the cleaning member of the intermediate recovery mechanism in the embodiment of the present invention when it is not rotated for cleaning;

FIG. 5 is a schematic view of a cleaning mechanism of an intermediate recovery mechanism according to an embodiment of the present invention (the dotted line is a cleaning path);

fig. 6 is a schematic structural view of a plastic injection recycling apparatus in embodiment 2 of the present invention;

fig. 7 is another schematic structural diagram of the plastic injection recycling device in embodiment 2 of the present invention.

Description of reference numerals:

1. recovering the body; 10. a channel; 2. a filtering mechanism; 20. a communicating portion; 21. cutting; 3. a cleaning member; 30. an installation part; 31. a mounting seat; 32. a cleaning part; 33. an elastic member; 4. a collection mechanism; 5. a drive member; 6. a fixing member; 7. a guide slope; 100. an intermediate recovery mechanism; 200. a primary recovery unit; 201. a cloth bag filter element; 300. a secondary recovery device; 400. a pipeline; 400a, a first pipeline; 400b, a second pipeline; 401. an air inlet; 402. and (7) air outlet.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 7, the intermediate recycling mechanism of the present embodiment is disposed between a primary recycling device 200 and a secondary recycling device 300, and includes a recycling body 1, at least one filtering mechanism 2, a collecting assembly and a fixing member 6.

Specifically, the recovery body 1 is a cylindrical body having the same inner diameter as the pipe 400 communicating the primary recovery device 200 and the secondary recovery device 300. The recovery body 1 has a passage 10 therein, and the recovery body 1 is connected at left and right ends thereof, i.e., as shown in fig. 1, to a primary recovery device 200 and a secondary recovery device 300, respectively. At least one filtering mechanism 2 is arranged at one end of the recovery body 1 close to the secondary recovery device 300, one end of the recovery body 1 close to the primary recovery device 200 is provided with an opening, and the filtering mechanism 2 is provided with a plurality of communicating parts 20 for communicating the channel 10 with the primary recovery device 200 and the secondary recovery device 300. The collection subassembly is including collecting mechanism 4 and clearance mechanism, collect mechanism 4 and connect on the bottom segment part of filter mechanism 2 or retrieve the diapire that is located on the radial extending direction of passageway 10 of body 1, clearance mechanism sets up in retrieving body 1, clearance mechanism includes driving piece 5 and the part 3 that cleans of being connected with driving piece 5, driving piece 5 starts when its switch on, it is circumferential direction in the passageway 10 of the recovery body 1 of barrel structure that the drive that cleans part 3 received driving piece 5, thereby clean the moulding powder on the filter mechanism 2. The cleaning surface of the cleaning mechanism in this embodiment is in contact with the filter mechanism 2 when the cleaning operation is not performed. Adopt foretell middle recovery mechanism 100, when clearing up the recovery to one-level recovery unit 200, the plastic powder on sack filter 201 enters into passageway 10 through the opening of retrieving body 1 one end through the exit end of one-level recovery unit 200 and holds back through the filtering mechanism 2 of retrieving the body 1 other end again, make the plastic powder be held back on filtering mechanism 2's the terminal surface towards passageway 10, rethread driving piece 5 drive cleans the plastic powder on filtering mechanism 2 with cleaning member 3, make the plastic powder fall under the action of gravity in collecting mechanism 4, thereby make the plastic powder obtain further recovery, avoid the direct economic loss and the environmental pollution problem that cause in reaching second grade recovery unit 300 through pipeline 400 of a large amount of plastic powder of different colours, improve the recovery utilization ratio of plastic powder greatly. As an alternative embodiment, the recycling body 1 may not be a cylinder, but may also be in other shapes, such as a square, etc., and when installed in the pipeline 400, it is only necessary to ensure that the height is not higher than the inner diameter of the pipeline 400, that is, the recycling body 1 can be conveniently taken out from the pipeline 400.

Alternatively, as shown in fig. 6, the intermediate recovery mechanism 100 of the present embodiment is detachably disposed in a pipeline 400 connecting the primary recovery device 200 and the secondary recovery device 300, a notch 21 is formed on a bottom section of the filtering mechanism 2, and the collecting mechanism 4 is detachably connected to the notch 21. Specifically, as shown in fig. 2, the cross section of the filter means 2 and the cross section of the notch 21 are both fan-shaped, and more specifically, the filter means 2 is a large fan-shaped body having a central angle of a major angle, and the notch 21 is a small fan-shaped body having a central angle of a minor angle. Alternatively, the area of the cut 21 is smaller than a quarter, such as a sixth, an eighth, etc., of the area of the circle in which the entire filter mechanism 2 is located. The collecting means 4 is preferably, but not limited to, a cloth bag, the mouth of which is detachably connected to the position of the cut 21 by fastening means such as a clamp or a buckle. As an alternative embodiment, the cloth bag can also be directly sewn and fixed at the position of the cut 21. The cloth bag has the property of expansion and contraction, and can be in a contraction state when not being collected, so that the occupied space is reduced.

Optionally, as shown in fig. 7, the pipeline 400 connecting the primary recovery device 200 and the secondary recovery device 300 is two-stage, and includes a second pipeline 400b and at least one first pipeline 400 a. One end of any first pipeline 400a is correspondingly connected with one primary recovery device 200, one end of the second pipeline 400b far away from the first pipeline 400a is connected with the second recovery device, the other ends of all the first pipelines 400a are connected with the other end of the second pipeline 400b, and a plastic spraying recovery device is arranged in any first pipeline 400 a. By arranging one middle recovery mechanism 100 in each first pipeline 400a, the plastic powder with different colors falling from the corresponding first-stage recovery device 200 is recovered again, so that economic loss caused by direct reaching of the second-stage recovery device 300 is avoided. As an alternative embodiment, the pipeline 400 is two-sectioned, and includes a first pipeline 400a and a second pipeline 400b, one end of the first pipeline 400a is connected to the primary recovery device 200, one end of the second pipeline 400b far from the primary recovery device 200 is connected to the secondary recovery device 300, and the intermediate recovery mechanism 100 is connected between the other end of the first pipeline 400a and the other end of the second pipeline 400 b. This configuration is generally only suitable for recycling molding powders using a single color.

Alternatively, as shown in fig. 2, the filter mechanism 2 is a mesh screen, and the communicating portion 20 is a mesh. As for the filter means 2, the filter means 2 of the present embodiment is preferably one, and is provided at one end of the recovering body 1 near the secondary recovering device 300. As an alternative embodiment, the filtering mechanism 2 of the present embodiment includes two filtering mechanisms respectively disposed at both ends of the recovery body 1, wherein the aperture of the communicating portion 20 of the filtering mechanism 2 near one end of the primary recovery device 200 of the recovery body 1 is not smaller than the aperture of the communicating portion 20 of the filtering mechanism 2 near one end of the secondary recovery device 300. So that a large amount of molding powder can enter the channel 10 and be intercepted by the filtering mechanism 2 close to the secondary recovery device 300, namely close to the cleaning component 3 or the collecting mechanism 4, the complexity of the structure arrangement can be reduced, and only one end close to the secondary recovery device 300 is required to be provided with the filtering mechanism 2, the cleaning component 3 and the collecting mechanism 4.

Alternatively, the driving member 5 is a rotary motor, the cleaning member 3 is a brush such as a conventional brush or a cloth brush, etc., and the cleaning member 3 is mounted on the end of the rotary shaft of the rotary motor. Preferably, in order to facilitate the mounting and fixing of the rotating electric machine, a fixing member 6 is further provided in the channel 10, and the driving member 5, i.e. the rotating electric machine, is fixed to the fixing member 6. More specifically, the fixing element 6 is a fixing column which is perpendicular to the axis of the channel 10, i.e. extends up and down as shown in fig. 1, and a gap is formed between an outer side wall of the fixing column in the radial extending direction and an inner wall of the channel 10, i.e. the channel 10 is convenient to communicate with the primary recovery device 200, the secondary recovery device 300 and the pipeline 400. As an alternative embodiment, the rotating electrical machine may also be fixedly mounted directly on the inner wall of the channel 10.

The cleaning member 3 is a conventional brush or a conventional brush, and the specific structure thereof will not be described or limited in detail. As an alternative embodiment, as shown in fig. 4 and 5, the cleaning member 3 includes a mounting seat 31 and at least two cleaning portions 32. Specifically, the mounting seat 31 is rectangular plate-shaped and has a size similar to that of the fixing member 6, so as to facilitate the plastic powder to be trapped on the filtering mechanism 2 instead of being blocked by the cleaning member 3. The mounting seat 31 is fixedly connected with the driving shaft, and a mounting part 30 is arranged at the center of one end of the mounting seat 31, which faces away from the driving shaft. At least two cleaning parts 32 are provided on the mounting base 31 so as to be symmetrical about the mounting part 30, and any one of the cleaning parts 32 is connected to the mounting part 30 via an elastic member 33. More specifically, on the circular track formed by the rotation of the cleaning component 3, at least two cleaning parts 32 are slidably disposed on the mounting seat 31 by taking the center of the circular track as a symmetric point, that is, a matched sliding structure is disposed between the mounting seat 31 and the cleaning parts 32, for example, a sliding block is disposed on one of the mounting seat 31 and the cleaning parts 32, and a sliding groove is disposed on the other one of the mounting seat 31 and the cleaning parts 32, so that the sliding structure not only can play a role of sliding guide, but also can prevent the cleaning parts 32 from slipping off the mounting seat 31 due to the centrifugal force during the rotation process. The elastic member 33 is a conventional spring, when the mounting seat 31 rotates under the driving of the rotation of the fan blade or the wind wheel, the two cleaning parts 32 slide outwards along the radial direction due to the centrifugal force, and the faster the rotation speed is, the longer the distance of outwards sliding is, and the larger the cleaned area is. In order to avoid interference between the cleaning member 3 and the inner wall of the channel 10, the present embodiment sets the sum of the maximum elongation deformation amount of the elastic member 33 and the length of the cleaning portion 32 to be not more than half of the radius of the channel 10, that is, the vertical height of the channel 10 as shown in fig. 1. Not only ensures that the cleaning component 3 has a larger cleaning range, but also avoids the cleaning component 3 from interfering with the inner wall of the channel 10 in the rotating cleaning process to influence the cleaning operation. For the mounting portion 30, a mounting boss or a mounting hole may be selected.

Example 2

Referring to fig. 1 to 7, a recycling apparatus for plastic spraying of the present embodiment includes a secondary recycling apparatus 300, at least one primary recycling apparatus 200, a pipeline 400 and a blower. At least one primary recovery device 200 is communicated with a secondary recovery device 300 through a pipeline 400, a fan is arranged at the outer end of an air outlet 402 of the pipeline 400, wherein the primary recovery device 200 is arranged at an air inlet 401 of the pipeline 400, and the secondary recovery device 300 is arranged at the inner end of the air outlet 402 of the pipeline 400; at least one intermediate recovery mechanism 100 of embodiment 1 is also included. The recovery unit that spouts of this embodiment, the during operation, 5 switch on of driving piece drives and cleans 3 rotations of part, cleans 3 rotations of part and cleans moulding powder on the filter mechanism 2 for moulding powder drops and retrieves to collecting in the mechanism 4, avoids moulding powder that one-level recovery unit 200 retrieved directly to enter into secondary recovery unit 300 through pipeline 400 when the clearance and causes the waste, causes economic loss and environmental pollution's problem.

It should be noted that the intermediate recovery mechanism 100 includes a plurality of pipes, specifically, the number of the primary recovery devices 200 corresponds to that of the conduits 400, and the conduits 400 include first conduits 400a and second conduits 400b, where the number of the first conduits 400a corresponds to that of the primary recovery devices 200, and the second conduits 400b include only one. Specifically, one end of each first pipeline 400a is correspondingly connected with the outlet end of one primary recovery device 200, the other end of each first pipeline is connected with one end of a second pipeline 400b, the other end of the second pipeline 400b is connected with a secondary recovery device 300, and each first pipeline 400a is internally provided with one intermediate recovery mechanism 100.

As an alternative embodiment, only one primary recovery device 200 may be provided, and correspondingly, the intermediate recovery mechanism 100 and the duct 400 include one, that is, one primary recovery device 200 is provided at the position of the air inlet 401 of the duct 400, and one secondary recovery device 300 is provided at the front end of the air outlet 402 of the duct 400. It should be noted that the duct 400 in this embodiment may be a complete duct 400, and in this case, the intermediate recovery mechanism 100 is detachably disposed inside the duct 400. As a modified embodiment, the pipeline 400 in this embodiment has a two-stage structure, that is, includes a first pipeline 400a having one end connected to the outlet end of the primary recovery device 200 and the other end connected to the intermediate recovery device 100, and a second pipeline 400b having one end connected to the intermediate recovery device 100 and the other end connected to the inlet end of the secondary recovery device 300, that is, the intermediate recovery device 100 is connected between the first pipeline 400a and the second pipeline 400b, and the filter devices 2 at the two ends of the recovery body 1 are respectively connected to and communicated with the two ends of the first pipeline 400a and the second pipeline 400b, that is, the axial direction of the channel 10 is the same as the axial direction of the first pipeline 400a and the second pipeline 400b, and at this time, it is preferable that the collection device 4 is located on the bottom wall of the recovery body 1 perpendicular to the axial direction of the channel 10, that is, the collection device 4 is located outside the pipeline 400. As an alternative embodiment, the collecting means 4 may also be arranged in the second conduit 400 b.

The recycling device for plastic spraying of the embodiment comprises the middle recycling mechanism 100 of the embodiment 1, and therefore, the recycling device at least has the advantages of the middle recycling mechanism 100 of the embodiment 1, and can avoid serious economic loss and environmental pollution caused by plastic powder with different colors reaching the secondary recycling device 300 through the primary recycling device 200, and greatly improve the recycling rate of the plastic powder.

Example 3

Referring to fig. 1 to 7, a plastic injection molding apparatus of the present embodiment includes a plastic injection molding machine and a plastic injection molding recycling device of embodiment 2. The specific structure of the injection molding machine is not described and limited in detail, and is the existing structure. Because the plastic spraying equipment of this embodiment includes the plastic spraying recovery unit of embodiment 2, and the plastic spraying recovery unit of embodiment 2 includes the middle recovery mechanism 100 of embodiment 1, so possessed the advantage of the middle recovery mechanism 100 of embodiment 1 at least, can avoid the moulding powder of different colours to lead to the fact serious economic loss and environmental pollution problem after reaching second grade recovery unit 300 through one-level recovery unit 200, improve the recycle ratio of moulding powder greatly.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An intermediate recovery mechanism, provided between a primary recovery device (200) and a secondary recovery device (300), the intermediate recovery mechanism (100) comprising:

the recycling device comprises a recycling body (1), a first-stage recycling device (200) and a second-stage recycling device (300), wherein a channel (10) is formed in the recycling body, and two ends of the recycling body are respectively connected with the first-stage recycling device (200) and the second-stage recycling device (300);

the filtering mechanism (2) is arranged at one end, close to the secondary recovery device (300), of the recovery body (1), an opening is formed at one end, close to the primary recovery device (200), of the recovery body (1), and a plurality of communicating parts (20) for communicating the channel (10), the primary recovery device (200) and the secondary recovery device (300) are formed in the filtering mechanism (2);

collect the subassembly, including collecting mechanism (4) and clearance mechanism, collect mechanism (4) and connect on the bottom segment part of filter mechanism (2) or on retrieving the diapire of body (1) that is located on the radial extending direction of passageway (10), clearance mechanism sets up retrieve in the body (1), clearance mechanism includes driving piece (5) and cleans part (3) of being connected with driving piece (5), driving piece (5) start when its switch on, clean part (3) and receive the drive of driving piece (5), it is right mould powder on filter mechanism (2) cleans.

2. The intermediate recovery mechanism according to claim 1, wherein the intermediate recovery mechanism (100) is detachably disposed in a pipeline (400) communicating the primary recovery device (200) and the secondary recovery device (300), the recovery body (1) is a cylinder body matched with the inner diameter of the pipeline (400), a notch (21) is formed in a bottom section of the filtering mechanism (2), and the collecting mechanism (4) is detachably connected to the notch (21).

3. An intermediate recovery mechanism, according to claim 1, characterized in that the conduit (400) connecting said primary recovery device (200) and said secondary recovery device (300) is of two-stage type, comprising a second conduit (400b) and at least a first conduit (400 a);

one end of any one first pipeline (400a) is correspondingly connected with a primary recovery device (200), one end of the second pipeline (400b) far away from the first pipeline (400a) is connected with a secondary recovery device (300), the other ends of all the first pipelines (400a) are connected with the other end of the second pipeline (400b), and one intermediate recovery mechanism (100) is arranged in any one first pipeline (400 a); or

Pipeline (400) are two segmentations, including first pipeline (400a) and second pipeline (400b), one-level recovery unit (200) is connected to the one end of first pipeline (400a), keep away from of second pipeline (400b) one end of one-level recovery unit (200) is connected second grade recovery unit (300), middle recovery mechanism (100) are connected between the other end of first pipeline (400a) and the other end of second pipeline (400 b).

4. An intermediate recovery mechanism according to claim 1, wherein the filter mechanism (2) is a mesh screen, and the communication portion (20) is a mesh;

the two filtering mechanisms (2) are respectively arranged at two ends of the recovery body (1), wherein the aperture of the communicating part (20) of the filtering mechanism (2) close to one end of the primary recovery device (200) of the recovery body (1) is not smaller than the aperture of the communicating part (20) of the filtering mechanism (2) close to one end of the secondary recovery device (300).

5. An intermediate recovery mechanism as claimed in claim 1, characterised in that said collecting means (4) is a cloth bag.

6. An intermediate recovery mechanism as claimed in claim 1, characterized in that the drive member (5) is a rotating motor, the cleaning member (3) is a brush, and the cleaning member (3) is mounted on the end of the rotating shaft of the rotating motor.

7. An intermediate recovery mechanism as claimed in claim 1 or 6, further comprising:

and the driving piece (5) is fixed on the fixing piece (6).

8. An intermediate recovery mechanism according to claim 7, characterized in that the fixing member (6) is a fixing post arranged perpendicular to the axis of the channel (10), and the outer side wall of the fixing post in the radial extension direction has a gap with the inner wall of the channel (10).

9. A spraying plastics recovery unit, including a second grade recovery unit (300), at least one first grade recovery unit (200), pipeline (400) and fan, at least one said first grade recovery unit (200) through one said pipeline (400) with said second grade recovery unit (300) intercommunication, the said fan sets up in the outer end of the air outlet (402) of the said pipeline (400), wherein the said first grade recovery unit (200) is set up in the air intake (401) of the said pipeline (400), the said second grade recovery unit (300) is set up in the inner end of the air outlet (402) of the said pipeline (400); characterized in that it further comprises at least one intermediate recovery mechanism (100) according to any one of claims 1 to 8.

10. A plastic injection molding apparatus comprising a plastic injection molding machine and the plastic injection molding recycling device of claim 9.