阅读说明：本技术 一种塑料挤吹中空成型机 (Plastic extrusion blow hollow forming machine ) 是由 张金美 于 2021-01-05 设计创作，主要内容包括：本发明公开了一种塑料挤吹中空成型机,其结构包括操作箱、挤吹成型装置、原料处理箱、可视窗口、液压装置、电控装置、进料斗,操作箱设于原料处理箱左侧,挤吹成型装置设于操作箱内部,可视窗口设于操作箱上方,液压装置设于操作箱上方,并且与挤吹成型装置配合相连,电控装置设于原料处理箱上,并通过电相连,进料斗设于原料处理箱上,并设于电控装置后侧,挤吹成型装置包括吹气管、固定支架、粘结清理机构,吹气管底部一端插入固定支架内,并通过固定支架与挤吹成型装置相连,本发明通过设立粘结清理机构,吹嘴拔出后,对吹嘴表面环刮一周,保持吹嘴表面的干净,避免有塑料残渣粘结于吹嘴表面,使挤吹成型的塑料制品表面更加光滑平整。(The invention discloses a plastic extrusion blow hollow forming machine, which comprises an operation box, an extrusion blow forming device, a raw material processing box, a visible window, a hydraulic device, an electric control device and a feed hopper, wherein the operation box is arranged on the left side of the raw material processing box, the extrusion blow forming device is arranged in the operation box, the visible window is arranged above the operation box, the hydraulic device is arranged above the operation box and is matched and connected with the extrusion blow forming device, the electric control device is arranged on the raw material processing box and is electrically connected with the raw material processing box, the feed hopper is arranged on the raw material processing box and is arranged on the rear side of the electric control device, the extrusion blow forming device comprises an air blowing pipe, a fixed bracket and a bonding cleaning mechanism, one end of the bottom of the air blowing pipe is inserted into the fixed bracket and is connected with the extrusion blow forming device through the fixed bracket, the invention ensures that the surface of the blow nozzle is circularly scraped for one circle after the blow nozzle is pulled out, plastic residues are prevented from being bonded on the surface of the blowing nozzle, so that the surface of the plastic product formed by extrusion blowing is smoother and smoother.)

1. The utility model provides a plastics extrusion-blow cavity make-up machine, its structure includes control box (1), extrusion-blow forming device (2), feedstock processing case (3), visual window (4), hydraulic means (5), electrically controlled device (6), feeder hopper (7), feedstock processing case (3) left side is located in control box (1), extrusion-blow forming device (2) are located inside control box (1), control box (1) top is located in visual window (4), control box (1) top is located in hydraulic means (5) to link to each other with extrusion-blow forming device (2) cooperation, on feedstock processing case (3) is located in electrically controlled device (6) to link to each other through the electricity, on feedstock processing case (3) is located in feeder hopper (7), and locate electrically controlled device (6) rear side, its characterized in that:

the extrusion blow molding device (2) comprises an air blowing pipe (20), a fixing support (21) and a bonding cleaning mechanism (22), one end of the bottom of the air blowing pipe (20) is inserted into the fixing support (21) and is connected with the extrusion blow molding device (2) through the fixing support (21), the bonding cleaning mechanism (22) is nested outside the air blowing pipe (20) and is in transition fit, and one end of the outer side of the bonding cleaning mechanism (22) is screwed and fixed on the extrusion blow molding device (2) through a bolt and is arranged in the operation box (1);

bind clearance mechanism (22) including outer along solid fixed ring (221), go up to connect and inlay pole (222), clearance scraping device (223), propelling torsion spring (224), connect down and inlay pole (225), go up to connect and inlay pole (222) and connect down and inlay pole (225) one end and weld on outer edge solid fixed ring (221) inboard surface, the other end inserts in clearance scraping device (223), propelling torsion spring (224) are located and are connected to inlay pole (222) and connect down and inlay between pole (225), propelling torsion spring (224) left side one end and outer along solid fixed ring (221) fixed connection, the other end links to each other with clearance scraping device (223) is inside, go up to connect and inlay pole (222), connect down and inlay pole (225) and propelling torsion spring (224) and be a set of, are equipped with 6 groups altogether to use gas blow pipe (20) to be the transmission form equidistance distribution as the centre of a circle.

2. A plastic extrusion blow molding machine as claimed in claim 1, characterized in that: clearance scraping device (223) include last receiving groove (2231), lower receiving groove (2232), closed angle ring (2233), waste collection box (2234), connecting body (2235), go up receiving groove (2231), lower receiving groove (2232) are the integral structure with connecting body (2235), go up receiving groove (2231), lower receiving groove (2232) locate connecting body (2235) outside respectively to correspond the nestedly continuous with last embedded bar (222), lower embedded bar (225), closed angle ring (2233) and connecting body (2235) are the integral structure, closed angle ring (2233) are connected in connecting body (2235) inboard top to it links to each other with the laminating of gas blow pipe (20) outside surface, waste collection box (2234) are located on connecting body (2235).

3. A plastic extrusion blow molding machine as claimed in claim 2, characterized in that: the waste collection box (2234) comprises a collection box body (a), a buckle plate (b), an opening and closing component (c) and a collection chamber (d), one end of the outer side of the buckle plate (b) is connected with the top of the collection box body (a) in a buckling mode, one end of the inner side of the buckle plate (b) is connected with the opening and closing component (c) in a laminating mode, one end of the inner side of the opening and closing component (c) is connected with a connecting main body (2235), and the collection chamber (d) is arranged inside the collection box body (a).

4. A plastic extrusion blow molding machine as claimed in claim 3, characterized in that: the opening and closing assembly (c) comprises an opening plate (c1), a hemisphere connecting buckle (c2), an upper adjusting rod (c3), a lower adjusting rod (c4) and a connecting block (c5), wherein a sliding fit rail is arranged in the connecting body (2235), one end of the inner side of the opening plate (c1) is connected with the sliding fit rail of the connecting body (2235) in a nested mode, one end of the top of the hemisphere connecting buckle (c2) is fixedly connected with the bottom surface of the opening plate (c1), the upper adjusting rod (c3) is attached to the upper portion of the lower adjusting rod (c4), the upper adjusting rod (c3) is structurally consistent with the lower adjusting rod (c4) and symmetrically connected with each other, the lower adjusting rod (c4) is fixed on the connecting block (c5), the connecting block (c5) is fixed in the connecting body (2235), and the upper adjusting rod (c3) is connected with the hemisphere connecting buckle (c2) through the hemisphere connecting buckle (c 2).

5. A plastic extrusion blow molding machine as claimed in claim 4, characterized in that: go up regulation pole (c3) and include sleeve pipe (c31), resume hairspring (c32), tubule (c33), magnetic force laminating piece (c34), sleeve pipe (c31) links to each other with hemisphere connector link (c2), resume hairspring (c32) and locate inside sleeve pipe (c31), resume hairspring (c32) bottom one end and tubule (c33) fixed linking to each other, magnetic force laminating piece (c34) and tubule (c33) bottom are fixed continuous, realize opening plate (c1) fall behind can in time get back to the effect at top, avoid collecting interior residue of cavity (d) and spill out when equipment blows.

6. A plastic extrusion blow molding machine as claimed in claim 1 or 3, characterized in that: the surfaces of the joint of the opening plate (c1) and the buckle plate (b) are provided with magnetic sheets (g).

7. A plastic extrusion blow molding machine as claimed in claim 3, characterized in that: buckle (b) is equipped with cambered surface recess (b1), cambered surface recess (b1) is the integral structure with buckle (b), cambered surface recess (b1) is equipped with 2, institute buckle (b) link to each other with collection box body (a) cooperation through cambered surface recess (b 1).

8. A plastic extrusion blow molding machine as claimed in claim 3 or 7, characterized in that: collect and be equipped with fixed subassembly of buckle (aa) on box body (a), the fixed subassembly of buckle (aa) links to each other with cambered surface recess (b1) cooperation, fixed subassembly of buckle (aa) includes propelling movement piece (a1), spacing thin torsional spring (a2), spacing torsional spring chamber (a3), propelling movement piece (a1) cambered surface one end links to each other with cambered surface recess (b1) laminating, propelling movement piece (a1) other end embedding spacing torsional spring chamber (a3) links to each other with spacing thin torsional spring (a2), propelling movement piece (a1) is clearance fit with spacing torsional spring chamber (a3), spacing torsional spring chamber (a3) is the integral structure with collection box body (a).

Technical Field

The invention relates to the field of hollow forming equipment, in particular to a plastic extrusion blow hollow forming machine.

Background

Plastic containers, i.e., hollow blow molded containers, are processed by a hollow molding method. The plastic barrel and the tank with the opening are mainly used for containing solid chemicals, foods, medicines and the like; the plastic barrel and tank with closed mouth are mainly used for containing liquid substances, the prior plastic extrusion blow hollow molding machine comprises a frame, wherein a mold opening and closing device and an extrusion device are arranged on the frame, and the extrusion device is connected with a plastic container molding die head; install the blow gun device under the plastic container forming die head, stretch into the mould through the blow gun and blow in, extract after blowing, nevertheless the plastics raw materials in the mould has certain stickness through the heating, and the surface glues easily when the blow gun is extracted and is stained with plastics raw materials, makes next time crowded when blowing the operation, and plastics products and blow gun connection surface produce deckle edge, and the unevenness uses and leads to the fish tail skin.

Disclosure of Invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: a plastic extrusion blow hollow molding machine structurally comprises an operation box, an extrusion blow molding device, a raw material processing box, a visible window, a hydraulic device, an electric control device and a feed hopper, wherein the operation box is arranged on the left side of the raw material processing box;

the extrusion blow molding device comprises an air blowing pipe, a fixed support and a bonding cleaning mechanism, one end of the bottom of the air blowing pipe is inserted into the fixed support and is connected with the extrusion blow molding device through the fixed support, the bonding cleaning mechanism is nested outside the air blowing pipe and is in transition fit, one end of the outer side of the bonding cleaning mechanism is fixed on the extrusion blow molding device through a bolt and is arranged in an operation box, the bonding cleaning mechanism comprises an outer edge fixed ring, an upper connecting embedded rod, a cleaning scraping device, a pushing torsion spring and a lower connecting embedded rod, one end of the upper connecting embedded rod and one end of the lower connecting embedded rod are welded on the inner surface of the outer edge fixed ring, the other end of the upper connecting embedded rod and the other end of the lower connecting embedded rod are inserted into the cleaning scraping device, the torsion spring is pushed between the upper connecting embedded rod and the lower connecting embedded rod, one end of the left side of the pushing torsion spring is fixedly connected with the outer edge, the upper connecting embedded rod, the lower connecting embedded rod and the pushing torsion spring are in a group, 6 groups are arranged in total, and the upper connecting embedded rod, the lower connecting embedded rod and the pushing torsion spring are distributed in a radial shape at equal intervals by taking the air blowing pipe as a circle center.

As the further optimization of this technical scheme, clearance scraping device includes receiving tank, lower receiving tank, sharp angle ring, waste collection box, connecting body, upper receiving tank, lower receiving tank are the integral structure with connecting body, the connecting body outside is located respectively to upper receiving tank, lower receiving tank to inlay the pole, connect respectively with last and inlay the pole down and correspond nested linking to each other, sharp angle ring is the integral structure with connecting body, sharp angle ring connects in connecting body inboard top to link to each other with the laminating of gas blow pipe outside surface, waste collection box locates on the connecting body.

As the further optimization of this technical scheme, the refuse collection box is including collecting box body, buckle, subassembly, the collection cavity that opens and shuts, buckle outside one end links to each other with collection box body top lock, the inboard one end of buckle with open and shut the subassembly laminating and be connected, the inboard one end of subassembly that opens and shuts links to each other with the connecting body, it locates inside the collection box body to collect the cavity.

As a further optimization of the technical proposal, the opening and closing component comprises an opening and closing plate, a hemisphere connecting buckle, an upper adjusting rod, a lower adjusting rod and a connecting block, a sliding matching rail is arranged in the connecting main body, one end of the inner side of the open-close plate is connected with the sliding matching rail of the connecting main body in a nesting way, one end of the top of the hemispherical connecting buckle is fixedly connected with the bottom surface of the opening plate, the upper adjusting rod is attached above the lower adjusting rod, the upper adjusting rod and the lower adjusting rod have the same structure and are symmetrically connected with each other, the lower adjusting rod is fixed on the connecting block, the connecting block is fixed inside the connecting main body, the upper adjusting rod is connected with the hemisphere connecting buckle and is connected with the hemisphere connecting buckle through the hemisphere connecting buckle, when the residue of clearance falls to the cut-off board on, weight can make hemisphere connector link outside and buckle junction slope towards the below, forms the breach staggered with the buckle, and the cut-off board of being convenient for moves down along sliding fit rail and falls into in the collection cavity with the residue.

As a further optimization of this technical scheme, go up the regulation pole and include the sleeve pipe, resume thin spring, tubule, magnetic force laminating piece, the sleeve pipe links to each other with the hemisphere connector link, resume thin spring and locate intraductal, resume thin spring bottom one end and link to each other with the tubule is fixed, magnetic force laminating piece links to each other with the tubule bottom is fixed, realizes the effect that can in time get back to the top behind the opening and closing plate down, avoids collecting the indoor residue of chamber and spills out when equipment blows.

As the further optimization of the technical scheme, the surfaces of the joint parts of the opening plate and the buckle plate are respectively provided with the magnetic sheet, and when the air blow pipe is retracted to the initial position, the magnetic sheets can enable the joint parts of the opening plate and the buckle plate to be more tightly jointed.

As the further optimization of this technical scheme, the buckle is equipped with the cambered surface recess, the cambered surface recess is integral structure with the buckle, the cambered surface recess is equipped with 2, the institute the buckle passes through the cambered surface recess and links to each other with the cooperation of collection box body.

As the further optimization of this technical scheme, be equipped with the fixed subassembly of buckle on the collection box body, the fixed subassembly of buckle links to each other with the cooperation of cambered surface recess, the fixed subassembly of buckle includes propelling movement piece, spacing thin torsional spring, spacing torsional spring chamber, propelling movement piece cambered surface one end links to each other with the laminating of cambered surface recess, the spacing torsional spring chamber of propelling movement piece other end embedding links to each other with spacing thin torsional spring, propelling movement piece is clearance fit with spacing torsional spring chamber, spacing torsional spring chamber is the integral structure with the collection box body.

Advantageous effects

The invention relates to a plastic extrusion blow hollow molding machine, which is characterized in that a cleaning and scraping device is attached to the outer surface of an air blowing pipe under the action of the pushing force of a pushing torsion spring through a bonding cleaning mechanism when in use, the air blowing pipe moves towards the lower part when the air blowing pipe withdraws towards a fixed support, a sharp-angled ring arranged on the cleaning and scraping device scrapes plastic bonding objects attached and adhered to the surface of the air blowing pipe at the moment, the plastic bonding objects slide down to an opening and closing assembly of a waste collection box along the inclined surface of the sharp-angled ring, the opening and closing plate moves down along a sliding fit rail in a connecting main body due to the weight of the opening and closing plate, the plastic bonding objects fall into a collection chamber for centralized collection after a gap is opened, the damage to precise elements in the equipment due to the messy entering of residues is avoided, and a hemispherical connecting buckle is arranged, when the opening and the outer side of the opening, completing collection; collect the cavity when the residue that strikes off is full greatly, with the buckle towards the top hard pull up can to collect the cavity in clear up, put back the buckle in the original place after finishing, press towards the below, spacing thin torsional spring is connected the propelling movement piece along spacing torsional spring chamber towards cambered surface recess laminating under the effort, the realization is fixed the buckle on collecting the box body.

Compared with the prior art, the invention has the following advantages:

according to the invention, the bonding cleaning mechanism is arranged, after the blowing nozzle is pulled out, the surface of the blowing nozzle is circularly scraped for a circle, so that the surface of the blowing nozzle is kept clean, plastic residues are prevented from being bonded on the surface of the blowing nozzle, and the surface of a plastic product formed by extrusion blowing is smoother and smoother.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of a plastic extrusion blow molding machine according to the present invention.

FIG. 2 is a schematic structural diagram of the bond cleaning mechanism of the present invention.

FIG. 3 is a schematic top view of the bond cleaning mechanism of the present invention.

Fig. 4 is a schematic structural view of the cleaning and scraping device of the present invention.

Fig. 5 is a schematic structural diagram of the opening and closing assembly of the present invention.

FIG. 6 is a schematic view of the connection between the collection box and the buckle plate according to the present invention.

In the figure: an operation box-1, an extrusion blow molding device-2, a raw material processing box-3, a visible window-4, a hydraulic device-5, an electric control device-6, a feed hopper-7, an air blow pipe-20, a fixed support-21, a bonding cleaning mechanism-22, an outer edge fixed ring-221, an upper connecting embedded rod-222, a cleaning and scraping device-223, a pushing torsion spring-224, a lower connecting embedded rod-225, an upper receiving groove-2231, a lower receiving groove-2232, a sharp-angled ring-2233, a waste collection box-2234, a connecting body-2235, a collection box body-a, a buckle-b, an opening and closing component-c, a collection chamber-d, an opening and closing plate-c 1, a hemisphere connecting buckle-c 2, an upper adjusting rod-c 3, a lower adjusting rod-c 4, a lower adjusting, The device comprises a connecting block-c 5, a sleeve-c 31, a restoring thin spring-c 32, a thin tube-c 33, a magnetic force fitting block-c 34, an arc groove-b 1, a buckle fixing component-aa, a pushing block-a 1, a limiting thin torsion spring-a 2 and a limiting torsion spring cavity-a 3.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.

Example one

Referring to fig. 1-5, the invention provides a plastic extrusion blow hollow molding machine, which comprises an operation box 1, an extrusion blow molding device 2, a raw material processing box 3, a visible window 4, a hydraulic device 5, an electric control device 6 and a feed hopper 7, wherein the operation box 1 is arranged on the left side of the raw material processing box 3, the extrusion blow molding device 2 is arranged inside the operation box 1, the visible window 4 is arranged above the operation box 1, the hydraulic device 5 is arranged above the operation box 1 and is connected with the extrusion blow molding device 2 in a matching way, the electric control device 6 is arranged on the raw material processing box 3 and is electrically connected with the same, and the feed hopper 7 is arranged on the raw material processing box 3 and is arranged on the rear side of the electric control device 6;

the extrusion blow molding device 2 comprises an air blowing pipe 20, a fixing support 21 and a bonding cleaning mechanism 22, one end of the bottom of the air blowing pipe 20 is inserted into the fixing support 21 and is connected with the extrusion blow molding device 2 through the fixing support 21, the bonding cleaning mechanism 22 is nested outside the air blowing pipe 20 and is in transition fit, and one end of the outer side of the bonding cleaning mechanism 22 is screwed and fixed on the extrusion blow molding device 2 through a bolt and is arranged in the operation box 1;

the adhesion clearance mechanism 22 includes along solid fixed ring 221 outward, go up to connect and inlays pole 222, clearance scraping device 223, propelling movement torsional spring 224, connect down and inlay pole 225, go up to connect and inlay pole 222 and connect down and inlay pole 225 one end and weld on outer along solid fixed ring 221 inboard surface, the other end inserts in the clearance scraping device 223, propelling movement torsional spring 224 is located and is connected to inlay the pole 222 and connect down and inlay between the pole 225, propelling movement torsional spring 224 left side one end with outer along solid fixed ring 221 fixed connection, the other end links to each other with clearance scraping device 223 is inside, go up to connect and inlay the pole 222, connect down and inlay pole 225 and propelling movement torsional spring 224 and be a set of, be equipped with 6 groups altogether to it distributes to be the transmission form equidistance to use gas pipe 20 as the centre of a circle.

The cleaning and scraping device 223 includes an upper receiving groove 2231, a lower receiving groove 2232, a sharp-angled ring 2233, a waste collecting box 2234 and a connecting body 2235, the upper receiving groove 2231, the lower receiving groove 2232 and the connecting body 2235 are integrated, the upper receiving groove 2231 and the lower receiving groove 2232 are respectively arranged outside the connecting body 2235 and are respectively connected with the upper connecting embedded rod 222 and the lower connecting embedded rod 225 in a corresponding nesting manner, the sharp-angled ring 2233 and the connecting body 2235 are integrated, the sharp-angled ring 2233 is connected above the inner side of the connecting body 2235 and is attached to the outer side surface of the air blowing pipe 20, and the waste collecting box 2234 is arranged on the connecting body 2235.

The waste collection box 2234 comprises a collection box body a, a buckle b, an opening and closing component c and a collection chamber d, one end of the outer side of the buckle b is connected with the top of the collection box body a in a buckled mode, one end of the inner side of the buckle b is connected with the opening and closing component c in a fitted mode, one end of the inner side of the opening and closing component c is connected with the connecting body 2235, and the collection chamber d is arranged inside the collection box body a.

The opening and closing assembly c comprises an opening plate c1, a hemisphere connecting buckle c2, an upper adjusting rod c3, a lower adjusting rod c4 and a connecting block c5, a sliding matching rail is arranged in the connecting main body 2235, one end of the inner side of the opening plate c1 is connected with the sliding matching rail of the connecting main body 2235 in a nested manner, one end of the top of the hemisphere connecting buckle c2 is fixedly connected with the bottom surface of the opening plate c1, the upper adjusting rod c3 is attached to the upper side of the lower adjusting rod c4, the upper adjusting rod c3 and the lower adjusting rod c4 are consistent in structure and are symmetrically connected with each other, the lower adjusting rod c4 is fixed on the connecting block c5, the connecting block c5 is fixed in the connecting main body 2235, the upper adjusting rod c3 is connected with the hemisphere connecting buckle c2, and when cleaned residues fall on the opening plate c1, the hemisphere connecting buckle c2 makes the connection position of the outer side of the hemisphere connecting buckle c2 and the buckle b incline towards the lower buckle plate b to, facilitating the downward movement of the opening plate c1 along the slide-fit rail and the falling of the residue into the collection chamber d.

Go up regulation pole c3 and include sleeve pipe c31, resume hairspring c32, tubule c33, magnetic force laminating piece c34, sleeve pipe c31 links to each other with hemisphere connector link c2, it locates inside sleeve pipe c31 to resume hairspring c32, resume hairspring c32 bottom one end and tubule c33 fixed link to each other, magnetic force laminating piece c34 and tubule c33 bottom are fixed to be connected to each other, realize opening and shutting board c1 and fall behind the effect that can in time get back to the top down, avoid collecting in the chamber d residue and spill when equipment blows.

The surface of the joint of the opening plate c1 and the buckle b is provided with magnetic sheets g, and when the blowing pipe 20 is retracted to the initial position, the magnetic sheets g can enable the opening plate c1 to be tightly jointed with the buckle b.

When the cleaning scraper 223 is used, the cleaning scraper 223 is attached to the outer surface of the air blowing pipe 20 under the inward pushing force of the pushing torsion spring 224, when the air blowing pipe 20 withdraws towards the fixing support 21, the air blowing pipe 20 moves towards the lower side, the sharp-angled ring 2233 arranged on the cleaning scraper 223 scrapes off the plastic adhesive adhered to the surface of the air blowing pipe 20, the plastic adhesive slides down along the inclined surface of the sharp-angled ring 2233 to the opening and closing component c of the waste collection box 2234, the weight of the cleaning scraper causes the opening and closing plate c1 to move down along the sliding matching rail in the connecting body 2235, the plastic adhesive falls into the collection chamber d after the gap is opened to be collected intensively, the residue is prevented from being mixed into and damaging the precise elements in the device, and the hemispherical connecting button is arranged, when the weight of the opening and closing plate c1 is applied, the outer side of the hemispherical connecting button c2 inclines downwards so that the residue slides into the collection, and finishing collection.

Example two

Referring to fig. 1-5, the present invention provides a plastic extrusion blow molding machine, which comprises a buckle plate b having an arc groove b1, wherein the arc groove b1 and the buckle plate b are integrated, the arc groove b1 has 2 grooves, and the buckle plate b is connected with a collection box body a through an arc groove b 1.

Collect and be equipped with the fixed subassembly aa of buckle on the box body a, the fixed subassembly aa of buckle links to each other with the cooperation of cambered surface recess b1, the fixed subassembly aa of buckle includes propelling movement piece an 1, spacing thin torsional spring a2, spacing torsional spring chamber an 3, propelling movement piece a1 cambered surface one end links to each other with the laminating of cambered surface recess b1, propelling movement piece an 1 other end embedding spacing torsional spring chamber an 3 links to each other with spacing thin torsional spring a2, propelling movement piece a1 is clearance fit with spacing torsional spring chamber a3, spacing torsional spring chamber a3 is integrated structure with collection box body a.

On the basis of embodiment one, when the collection cavity d is filled with to the residue of scraping off, pull up the buckle b hard towards the top and can clear up in the collection cavity d, put the buckle b back to the original place after the end, press towards the below, spacing thin torsion spring a2 will push away piece a1 under the effort along spacing torsion spring chamber a3 towards cambered surface recess b1 laminating connection, realize fixing buckle b on collection box body a.

While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.