CN108516679A

CN108516679A - A kind of LOW-E glass productions processing technology

Info

Publication number: CN108516679A
Application number: CN201810351705.6A
Authority: CN
Inventors: 夏美佳; 吴贺
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-04-19
Filing date: 2018-04-19
Publication date: 2018-09-11

Abstract

The present invention relates to glass processing field, specifically a kind of LOW E glass production processing technologys, this approach includes the following steps：S1 crushes block stock in pulverizer；Raw material after crushing is dried S2；Raw material is passed through the iron tramp in electromagnet removal raw material by S3；Raw material and auxiliary material mixed preparing are formed mixture by S4；Mixture is put into pot furnace high temperature and melted, forms liquid glass by S5；S6 pours into liquid glass in glass-forming die, is cooled to solid glass；Solid glass is put into annealing, quenching treatment in Equipment for Heating Processing by S7；S8 cuts the glass after heat treatment, forms the transportable glass of certain specification；Glass after cutting is put into grinding apparatus by S9, and grinding apparatus polishes to the edge of glass.The production and processing technology shortens the period of glass production processing, reduces the high strength of direct labor, improves the degree of automation of glass production, has preferable application value.

Description

A kind of LOW-E glass productions processing technology

Technical field

The present invention relates to glass processing field, specifically a kind of LOW-E glass productions processing technology.

Background technology

Low-E glass is also known as low emissivity glass, is the film that multiple layer metal or other compounds composition are plated in glass surface It is product；Its film plating layer has to the characteristic of visible light high transmission and centering far infrared high reflection, make it with simple glass and Traditional coated glass for building is compared, and has excellent heat insulation and good translucency；Glass is important Building wood Material, with the continuous improvement required decorating building, usage amount of the glass in building trade also constantly increases；However, Current people are when selecting the glass door and window of building, other than considering its aesthetics and external appearance characteristic, more focus on the control of its heat, The problems such as cost of freezing and internal sunlight project comfortable balance；This allows for the upstart in coated glass family：Low-E glass is de- Grain husk and go out, become focus of people's attention.

Man-hour manually hand-held grinding apparatus is mostly used greatly in traditional glass production processing technology to polish to the edge of glass, This kind of mode is not only time-consuming and laborious, and substantially prolongs the production cycle of glass, is unfavorable for the quick production of glass.

Invention content

For the problems of the prior art, the present invention provides a kind of LOW-E glass productions processing technology, the production and processings Technique shortens the period of glass production processing, reduces the high strength of direct labor, improves the automation of glass production Degree has preferable application value.

The technical solution adopted by the present invention to solve the technical problems is：A kind of LOW-E glass productions processing technology, the party Method includes the following steps：

S1 crushes block stock in pulverizer；

Processing is dried using dry hot-air in raw material after being crushed in S1 by S2；

Raw material in S2 is removed the iron tramp contained in raw material by S3 by electromagnet；

The auxiliary material proportionally mixed preparing of raw material and production glass in S3 is formed mixture by S4；

Mixture in S4 is put into pot furnace and carries out high temperature melt by S5, forms liquid glass；

S6 pours into the liquid glass in S5 in glass-forming die, and liquid glass is cooled in glass-forming die Solid glass；

S7, the solid glass formed in S6 is put into Equipment for Heating Processing annealed, quenching treatment；

Glass after being heat-treated in S7 is cut, forms the transportable glass of certain specification by S8；

Glass after being cut in S8 is put into grinding apparatus by S9, and grinding apparatus polishes to the edge of glass；

S10, by S9, treated that glass is put into warehouse；

The grinding apparatus used in above-mentioned S9 includes the first pneumatic sliding rail, fixed mechanism, button, supporting mechanism, processing case Body, high-pressure nozzle, workpiece polishing mechanism and cleaning mechanism, the fixation that the first pneumatic sliding rail is slidably connected for fixing glass Mechanism, and the inside of the first pneumatic sliding rail is run through and is fixed on the inside of the machining box；The bottom of the machining box The supporting mechanism is fixed in portion, and the side of the supporting mechanism is equipped with the button；The inner tip of the machining box is solid The fixed inclined high-pressure nozzle, and the machining box is internally provided with the workpiece polishing mechanism；The bottom of the machining box It is fixed for clearing up the cleaning mechanism of glass surface spot；The button is electrically connected the fixed mechanism, the support Mechanism, the high-pressure nozzle and the workpiece polishing mechanism.

Specifically, the fixed mechanism includes side fixed mechanism, vacuum pump, the first aerodynamic slider, the second sucker and first Motor, first aerodynamic slider are slidably connected the described first pneumatic sliding rail, and institute is fixed in the side of first aerodynamic slider State first motor；The first motor is rotatablely connected the vacuum pump, and second sucker is fixed in the side of the vacuum pump； The side wall of the vacuum pump fixes the side fixed mechanism, and the side fixed mechanism includes that the first sucker and first electronic push away Bar；First electric pushrod is fixed on the side of the vacuum pump, and one end of first electric pushrod fixes described the One sucker；First sucker is all connected with the vacuum pump with second sucker.

Specifically, four side fixed mechanisms, and the vacuum are fixed in the side of the vacuum pump in decussate texture Rotation angle between pump and the first motor is 0 ° -360 °.

Specifically, the supporting mechanism includes pedestal, water pump, filter screen and conveying roller, the pedestal is fixed on described add The side of work babinet, and the top surface of the pedestal is rotatablely connected the conveying roller；The filtering is fixed in the inside of the pedestal Net, and the pedestal is internally provided with the water pump；The water pump connects the high-pressure nozzle.

Specifically, the section of the filter screen uses the structure of triangle, and the filter screen is fixed on hollow-core construction The inner tip of the pedestal.

Specifically, the both sides of the machining box are equipped with buffer zone, and closure knot is run through in the inside of the machining box Described first pneumatic sliding rail of structure；Several fixed mechanisms are equidistantly fixed in the side of the first pneumatic sliding rail.

Specifically, the workpiece polishing mechanism includes the second pneumatic sliding rail, the second aerodynamic slider, the first edging mechanism and the second mill Side mechanism；The second pneumatic sliding rail is fixed on the top of the machining box, and the basal sliding of the second pneumatic sliding rail Connect second aerodynamic slider；First edging mechanism, the machining box are fixed in the bottom of second aerodynamic slider Side-walls be equipped with second workpiece polishing mechanism identical with first edging mechanism.

Specifically, first edging mechanism includes the second electric pushrod, link block, the second motor, the first mill and the Two mills, second electric pushrod is fixed on the bottom of second aerodynamic slider, and the bottom of second motor is equipped with The link block；The link block is internally provided with accommodating chamber, and second motor is installed in the inside of the link block；It is described One end of second motor is rotatablely connected first mill, and the inside of first mill is equipped with second mill；It is described Material through hole under being internally provided with of second mill, and the lower material through hole is connected to the accommodating chamber.

Specifically, first mill uses disc-shaped structure, and the roughness of first mill is more than described second The roughness of mill；The surface of second mill is equidistantly opened in several horn-like lower material through hole.

Specifically, the cleaning mechanism includes telescoping mechanism, sponge gasket, outrigger and idler wheel, the outrigger is fixed on institute The inside of machining box is stated, and the bottom of the outrigger is equipped with the sponge gasket；It is stretched by described two insides of the outrigger Contracting mechanism is rotatablely connected the idler wheel, and the telescoping mechanism includes sleeve, spring and inserted link, and the sleeve is fixed on the outrigger Inside, and the inside of the sleeve passes through the spring and connects the inserted link；The inserted link is rotatablely connected the idler wheel.

Beneficial effects of the present invention：

(1) this processing technology use grinding apparatus, using telescopic fixed mechanism can to different size of glass into The stable fixation of row, reduces the percentage of damage of processing, while glass can be made to rotate, and facility is provided for comprehensive processing of glass.

(2) grinding apparatus that this processing technology uses, can then pass through the first edging when carrying out edging processing if rectangle Mechanism is polished in a manner of moving back and forth, if glass is circle, can by the rotation of glass to the edge of glass into Row polishing, use scope is wide, at the same polishing when utilize knockdown mill, polishing it is efficient, can polishing when voluntarily flow Go out solvent of polishing, polishing more uniformly.

(3) grinding apparatus that this processing technology uses can open high-pressure nozzle in bruting process and carry out cooling and glass The cleaning on surface, collaboration cleaning mechanism can effectively reinforce cleaning effect, provide facility for following process, save processing when Between.

Description of the drawings

Present invention will be further explained below with reference to the attached drawings and examples.

Fig. 1 is the structural schematic diagram for the grinding apparatus that this processing technology uses；

Fig. 2 is the structural schematic diagram of fixed mechanism shown in FIG. 1；

Fig. 3 is machining box internal structure structural schematic diagram shown in FIG. 1；

Fig. 4 is the first edging mechanism structural schematic diagram shown in Fig. 3；

Fig. 5 is cleaning mechanism structural schematic diagram shown in Fig. 3.

In figure：1, the first pneumatic sliding rail, 2, fixed mechanism, 21, side fixed mechanism, the 211, first sucker, the 212, first electricity Dynamic push rod, 22, vacuum pump, the 23, first aerodynamic slider, the 24, second sucker, 25, first motor, 3, button, 4, supporting mechanism, 41, pedestal, 42, water pump, 43, filter screen, 44, conveying roller, 5, machining box, 51, buffer zone, 6, high-pressure nozzle, 7, sander Structure, the 71, second pneumatic sliding rail, the 72, second aerodynamic slider, the 73, first edging mechanism, the 731, second electric pushrod, 732, connection Block, 7321, accommodating chamber, the 733, second motor, the 734, first mill, the 735, second mill, 7351, lower material through hole, the 74, second mill Side mechanism, 8, cleaning mechanism, 81, telescoping mechanism, 811, sleeve, 812, spring, 813, inserted link, 82, sponge gasket, 83, outrigger, 84, idler wheel.

Specific implementation mode

In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below Specific implementation mode is closed, the present invention is further explained.

As shown in Figure 1, a kind of LOW-E glass productions processing technology of the present invention, this approach includes the following steps：

S1 crushes block stock in pulverizer；

S10, by S9, treated that glass is put into warehouse；

The grinding apparatus used in above-mentioned S9 includes the first pneumatic sliding rail 1, fixed mechanism 2, button 3, supporting mechanism 4, adds Work babinet 5, high-pressure nozzle 6, workpiece polishing mechanism 7 and cleaning mechanism 8, the first pneumatic sliding rail 1 are slidably connected for fixing glass The fixed mechanism 2, and the inside of the first pneumatic sliding rail 1 is run through and is fixed on the inside of the machining box 5；It is described The supporting mechanism 4 is fixed in the bottom of machining box 5, and the side of the supporting mechanism 4 is equipped with the button 3；The processing The high-pressure nozzle 6 of the inner tip constant tilt of babinet 5, and the machining box 5 is internally provided with the workpiece polishing mechanism 7；The bottom of the machining box 5 is fixed for clearing up the cleaning mechanism 8 of glass surface spot；The button 3 electrically connects Connect the fixed mechanism 2, the supporting mechanism 4, the high-pressure nozzle 6 and the workpiece polishing mechanism 7.

Specifically, as depicted in figs. 1 and 2, the fixed mechanism 2 is pneumatic including side fixed mechanism 21, vacuum pump 22, first Sliding block 23, the second sucker 24 and first motor 25, first aerodynamic slider 23 are slidably connected the described first pneumatic sliding rail 1, and The first motor 25 is fixed in the side of first aerodynamic slider 23；The first motor 25 is rotatablely connected the vacuum pump 22, and second sucker 24 is fixed in the side of the vacuum pump 22；The side wall of the vacuum pump 22 fixes the side and fixes machine Structure 21, and the side fixed mechanism 21 includes the first sucker 211 and the first electric pushrod 212；First electric pushrod 212 is solid Due to the side of the vacuum pump 22, and first sucker 211 is fixed in one end of first electric pushrod 212；Described One sucker 211 is all connected with the vacuum pump 22 with second sucker 24, and glass is close to the fixed mechanism 2 on one side, is beaten The vacuum pump 22 is opened, attraction fixation is carried out to glass using first sucker 211 and second sucker 24, according to glass Size can drive first electric pushrod 212, be allowed to stretch to suitable length.

Specifically, as shown in Figure 2, the side of the vacuum pump 22 fixes four sides in decussate texture and fixes machine Structure 21, and the rotation angle between the vacuum pump 22 and the first motor 25 is 0 ° -360 °, in order to ensure fixing-stable.

Specifically, as shown in Figure 1, the supporting mechanism 4 includes pedestal 41, water pump 42, filter screen 43 and conveying roller 44, institute The side that pedestal 41 is fixed on the machining box 5 is stated, and the top surface of the pedestal 41 is rotatablely connected the conveying roller 44；Institute The inside for stating pedestal 41 fixes the filter screen 43, and the pedestal 41 is internally provided with the water pump 42；The water pump 42 connects The high-pressure nozzle 6 is connect, water that is cooling and cleaning is recycled in order to realize.

Specifically, as shown in Figure 1, the section of the filter screen 43 uses the structure of triangle, and the filter screen 43 is solid Due to the inner tip of the pedestal 41 of hollow-core construction, in order to carry out centralized collection to the clast of generation.

Specifically, as depicted in figs. 1 and 2, the both sides of the machining box 5 are equipped with buffer zone 51, and the machining box 5 Inside run through closed structure the described first pneumatic sliding rail 1；Several are equidistantly fixed in the side of the first pneumatic sliding rail 1 The fixed mechanism 2, for the ease of realizing the processing of cycle.

Specifically, as shown in Figure 3 and Figure 4, the workpiece polishing mechanism 7 include the second pneumatic sliding rail 71, the second aerodynamic slider 72, First edging mechanism 73 and the second edging mechanism 74；The second pneumatic sliding rail 71 is fixed on the top of the machining box 5, and The basal sliding of the second pneumatic sliding rail 71 connects second aerodynamic slider 72；The bottom of second aerodynamic slider 72 is solid Fixed first edging mechanism 73, the side-walls of the machining box 5 are equipped with identical with first edging mechanism 73 described Second workpiece polishing mechanism 74 selects different edging mechanisms that can carry out edging to glass of different shapes.

Specifically, as shown in Figure 3 and Figure 4, first edging mechanism 73 includes the second electric pushrod 731, link block 732, the second motor 733, the first mill 734 and the second mill 735, second electric pushrod 731 are fixed on second gas The bottom of movable slider 72, and the bottom of second motor 733 is equipped with the link block 732；The inside of the link block 732 is set There is accommodating chamber 7321, and second motor 733 is installed in the inside of the link block 732；One end of second motor 733 turns Dynamic connection first mill 734, and the inside of first mill 734 is equipped with second mill 735；Second mill Material through hole 7351 under 735 being internally provided with, and the lower material through hole 7351 is connected to the accommodating chamber 7321, the one side of glass is tight Paste the fixed mechanism 2, open the vacuum pump 22, using first sucker 211 and second sucker 24 to glass into Row, which attracts, to be fixed, and can be driven first electric pushrod 212 according to the size of glass, is allowed to stretch to suitable length.

Specifically, as shown in Figure 3 and Figure 4, first mill 734 uses disc-shaped structure, and first mill 734 Roughness be more than second mill 735 roughness；The surface of second mill 735 is equidistantly opened in several loudspeakers The lower material through hole 7351 of shape, in order to improve grinding efficiency.

Specifically, as shown in Figure 3 and Figure 5, the cleaning mechanism 8 includes telescoping mechanism 81, sponge gasket 82,83 and of outrigger Idler wheel 84, the outrigger 83 is fixed on the inside of the machining box 5, and the bottom of the outrigger 83 is equipped with the sponge gasket 82；Two insides of the outrigger 83 are rotatablely connected the idler wheel 84 by the telescoping mechanism 81, and the telescoping mechanism 81 includes Sleeve 811, spring 812 and inserted link 813, the sleeve 811 is fixed on the inside of the outrigger 83, and the sleeve 811 is interior Portion connects the inserted link 813 by the spring 812；The inserted link 813 is rotatablely connected the idler wheel 84, for the ease of to glass Outside carries out reinforcement cleaning.

The position for changing the fixed mechanism 2 by the described first pneumatic sliding rail 1 is convenient for the processing of cycle, described Supporting mechanism 4 is easy to implement whole support and the recycling of water, and the machining box 5 is convenient for being processed to whole, the height The pressure realization of nozzle 6 is cooled down and is cleaned to inside, and the realization of the workpiece polishing mechanism 7 polishes to the edge of glass, clears up Glass outer side is cleared up in the realization of mechanism 8；Specifically have：

(1) when needing to polish to glass, it would be desirable to which the glass of polishing is placed in the top of the supporting mechanism 4, will Glass is close to the fixed mechanism 2 on one side, opens the vacuum pump 22, is inhaled using first sucker 211 and described second Disk 24 carries out attraction fixation to glass, can drive first electric pushrod 212 according to the size of glass, be allowed to stretch to suitable Length；

(2) fixed glass enters the inside of the machining box 5, root when opening the first pneumatic sliding rail 1 Being determined according to the shape of glass needs edging mechanism to be used；Described the second of first edging mechanism 73 is then driven if rectangle Electric pushrod 731 makes mill contact glass, and second aerodynamic slider 72 is made to move the polishing that can be realized back and forth at this time；It beats When mill, the polishing solvent of 7321 inner containment of the accommodating chamber can be flowed out by the lower material through hole 7351, it is ensured that polishing is more Fully, glass can be made to be rotated by 90 ° the polishing for carrying out the other side after the completion of polishing on one side by second motor 733；If Circle then drives second edging mechanism 74 and glass contact, drives second motor 733 that glass is made to rotate always Complete polishing；

(3) clast of generation can be rinsed by opening the high-pressure nozzle 6 when polishing, and be carried out at the same time cooling；Clast It enters in the filter screen 43 and is trapped collection；Simultaneously glass polish rotate when glass both sides the cleaning mechanism 8 The idler wheel 84 rolling wiping is carried out to the spot of glass outer side, it is ensured that glass surface clean, the junction of the idler wheel 84 The spring 812 can make the idler wheel 84 be retracted into the outrigger 83 or pop-up different-thickness glass outer side is cleared up.

The wherein described first motor 25,733 model of the second motor use RS-280；First electric pushrod 212, Second electric pushrod, 731 model uses RD-DA-200406；The vacuum pump 22 is a kind of vacuum pump, model X-150.

The LOW-E glass production process equipments of the present invention can be to different size of using the telescopic fixed mechanism 2 Glass carries out stable fixation, reduces the percentage of damage of processing, while glass can be made to rotate, and is provided just for comprehensive processing of glass Profit；It can then be beaten in a manner of moving back and forth first edging mechanism 73 if rectangle when carrying out edging processing Mill can polish to the edge of glass by the rotation of glass, use scope is wide, while beating if glass is circle When mill utilize knockdown mill, polishing it is efficient, can polishing when voluntarily outflow polishing solvent, polishing more uniformly； The high-pressure nozzle 6 can be opened in bruting process and carries out cooling and the cleaning of glass surface, cooperate with the cleaning mechanism 8 that can have The reinforcement cleaning effect of effect, facility is provided for following process, saves the time of processing.

The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, and the description in the above embodiment and specification only illustrates the present invention Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and Improvement is both fallen in the scope of protection of present invention.The claimed scope of the invention is by appended claims and its equivalent Object defines.

Claims

1. a kind of LOW-E glass productions processing technology, which is characterized in that this approach includes the following steps：

S1 crushes block stock in pulverizer；

S6 pours into the liquid glass in S5 in glass-forming die, and liquid glass is cooled to solid-state in glass-forming die Glass；

S10, by S9, treated that glass is put into warehouse；

The grinding apparatus used in above-mentioned S9 includes the first pneumatic sliding rail (1), fixed mechanism (2), button (3), supporting mechanism (4), machining box (5), high-pressure nozzle (6), workpiece polishing mechanism (7) and cleaning mechanism (8), first pneumatic sliding rail (1) sliding The fixed mechanism (2) for fixing glass is connected, and the inside of the first pneumatic sliding rail (1) is run through and is fixed on described The inside of machining box (5)；The supporting mechanism (4), and the supporting mechanism (4) are fixed in the bottom of the machining box (5) Side be equipped with the button (3)；The high-pressure nozzle (6) of the inner tip constant tilt of the machining box (5), and institute That states machining box (5) is internally provided with the workpiece polishing mechanism (7)；The bottom of the machining box (5) is fixed for clearing up glass The cleaning mechanism (8) of surface blot；The button (3) be electrically connected the fixed mechanism (2), the supporting mechanism (4), The high-pressure nozzle (6) and the workpiece polishing mechanism (7).

2. a kind of LOW-E glass productions processing technology according to claim 1, it is characterised in that：The fixed mechanism (2) Including side fixed mechanism (21), vacuum pump (22), the first aerodynamic slider (23), the second sucker (24) and first motor (25), institute It states the first aerodynamic slider (23) to be slidably connected the described first pneumatic sliding rail (1), and the side of first aerodynamic slider (23) is solid The fixed first motor (25)；First motor (25) rotation connection vacuum pump (22), and the vacuum pump (22) Second sucker (24) is fixed in side；The side wall of the vacuum pump (22) fixes the side fixed mechanism (21), and the side Fixed mechanism (21) includes the first sucker (211) and the first electric pushrod (212)；First electric pushrod (212) is fixed on The side of the vacuum pump (22), and first sucker (211) is fixed in one end of first electric pushrod (212)；It is described First sucker (211) is all connected with the vacuum pump (22) with second sucker (24).

3. a kind of LOW-E glass productions processing technology according to claim 2, it is characterised in that：The vacuum pump (22) Side fix four side fixed mechanisms (21) in decussate texture, and the vacuum pump (22) and the first motor (25) rotation angle between is 0 ° -360 °.

4. a kind of LOW-E glass productions processing technology according to claim 1, it is characterised in that：The supporting mechanism (4) Including pedestal (41), water pump (42), filter screen (43) and conveying roller (44), the pedestal (41) is fixed on the machining box (5) side, and the top surface of the pedestal (41) is rotatablely connected the conveying roller (44)；The inside of the pedestal (41) is fixed The filter screen (43), and the pedestal (41) is internally provided with the water pump (42)；The water pump (42) connects the high pressure Nozzle (6).

5. a kind of LOW-E glass productions processing technology according to claim 4, it is characterised in that：The filter screen (43) Section use triangle structure, and the filter screen (43) be fixed on the pedestal (41) of hollow-core construction inside top End.

6. a kind of LOW-E glass productions processing technology according to claim 1, it is characterised in that：The machining box (5) Both sides be equipped with buffer zone (51), and the inside of the machining box (5) run through closed structure the described first pneumatic sliding rail (1)；Several fixed mechanisms (2) are equidistantly fixed in the side of the first pneumatic sliding rail (1).

7. a kind of LOW-E glass productions processing technology according to claim 1, it is characterised in that：The workpiece polishing mechanism (7) Including the second pneumatic sliding rail (71), the second aerodynamic slider (72), the first edging mechanism (73) and the second edging mechanism (74)；It is described Second pneumatic sliding rail (71) is fixed on the top of the machining box (5), and the basal sliding of the second pneumatic sliding rail (71) Connect second aerodynamic slider (72)；First edging mechanism (73) is fixed in the bottom of second aerodynamic slider (72), The side-walls of the machining box (5) are equipped with first edging mechanism (73) identical second workpiece polishing mechanism (74).

8. a kind of LOW-E glass productions processing technology according to claim 7, it is characterised in that：First edge polisher Structure (73) includes the second electric pushrod (731), link block (732), the second motor (733), the first mill (734) and the second mill (735), second electric pushrod (731) is fixed on the bottom of second aerodynamic slider (72), and second motor (733) bottom is equipped with the link block (732)；The link block (732) is internally provided with accommodating chamber (7321), and the company The inside for connecing block (732) is installed by second motor (733)；One end rotation connection described first of second motor (733) Mill (734), and the inside of first mill (734) is equipped with second mill (735)；Second mill (735) It is internally provided with lower material through hole (7351), and the lower material through hole (7351) is connected to the accommodating chamber (7321).

9. a kind of LOW-E glass productions processing technology according to claim 8, it is characterised in that：First mill (734) disc-shaped structure is used, and the roughness of first mill (734) is more than the roughness of second mill (735)； The surface of second mill (735) is equidistantly opened in several horn-like lower material through hole (7351).

10. a kind of LOW-E glass productions processing technology according to claim 1, it is characterised in that：The cleaning mechanism (8) include telescoping mechanism (81), sponge gasket (82), outrigger (83) and idler wheel (84), the outrigger (83) be fixed on it is described plus The inside of work babinet (5), and the bottom of the outrigger (83) is equipped with the sponge gasket (82)；Two insides of the outrigger (83) It is rotatablely connected the idler wheel (84) by the telescoping mechanism (81), the telescoping mechanism (81) includes sleeve (811), spring (812) and inserted link (813), the sleeve (811) are fixed on the inside of the outrigger (83), and the inside of the sleeve (811) The inserted link (813) is connected by the spring (812)；The inserted link (813) is rotatablely connected the idler wheel (84).