CN217668497U - Grinding device for manufacturing filter shell - Google Patents

Abstract

The utility model relates to a filter technical field, concretely relates to grinding device is used in filter housing manufacturing, it has solved among the prior art that proposes in the background art filter housing and has placed unstablely, and it is inhomogeneous to polish, the lower and relatively poor problem of environment of polishing of efficiency of polishing, comprises a workbench, the top left side longitudinal connection of workstation has the backup pad, and the top of backup pad is connected with the regulating plate through adjusting part, and the motor is installed on the top of regulating plate, and the bottom output shaft of motor rotates and passes the regulating plate and be connected with the driving gear, and the right side meshing of driving gear has driven gear, and driven gear's top is rotated through the pivot and is connected in the bottom of regulating plate, and driven gear is connected with the compression cap bottom of pivot, the vertical fixedly connected with back shaft in workstation top to back shaft and the vertical concentric setting of pivot, the top of back shaft is rotated and is connected with the hood, is connected with the tight board in top through multiunit elastic component on the circumference outer wall of back shaft.

Description

Grinding device for manufacturing filter shell

Technical Field

The utility model relates to a filter technical field, concretely relates to grinding device is used in filter housing manufacturing.

Background

As is well known, a filter is generally an air filter, which is an auxiliary device for filtering air, a large number of processes are required in the production of the existing air filter, wherein the production of a filter housing is a very important production process, which bears the installation and placement of a filter element, which is a key use component of the filter, the filter housing has more burrs on the housing after the production is completed, the housing needs to be polished before leaving the factory, the existing polishing mode is generally a polishing machine or a manual polishing mode of abrasive paper, which is not uniform in polishing, meanwhile, the filter housing is not stably placed in the polishing process, which affects the polishing operation, and cannot simultaneously polish the inner wall and the outer wall of the filter housing, the polishing efficiency is low, which cannot meet the work requirement of modern production, meanwhile, debris is diffused in the air to affect the polishing environment, which has a certain harm to the respiratory health of operators, therefore, a polishing device for manufacturing the filter housing needs to be designed, which improves the polishing efficiency, is uniform, and improves the air environment quality of the polishing operation area.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a grinding device is used in filter housing manufacturing to filter housing places the unstability among the prior art who proposes in the solution background art, and it is inhomogeneous to polish, and efficiency of polishing is lower and the relatively poor problem of environment of polishing.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a grinding device for filter housing makes, includes the workstation, the top left side longitudinal connection of workstation has the backup pad, and the top of backup pad is connected with the regulating plate through adjusting part, and the motor is installed on the top of regulating plate, and the bottom output shaft of motor rotates and passes the regulating plate and be connected with the driving gear, and the right side meshing of driving gear has driven gear, and driven gear's top is rotated through the pivot and is connected in the bottom of regulating plate, and the bottom of pivot is passed driven gear and is connected with the gland nut, the vertical fixedly connected with back shaft in workstation top to the back shaft vertically concentrically sets up with the pivot, and the top of back shaft rotates and is connected with the hood, is connected with the tight board in top through multiunit elastic component on the circumference outer wall of back shaft, the upside and the downside of backup pad all are provided with the through-hole that runs through about to the inside equal slip of every through-hole is provided with the bracing piece, and the right-hand member of two bracing pieces vertically is provided with the grinding rod, each all is provided with the brush on the lateral wall of polishing the lateral wall of roof board and grinding rod, the left end middle part of grinding rod rotates and is connected with the lead screw, and passes the backup pad and stretches out to the left end external of the left end of backup pad and the purification case is provided with the output of purification hose and purification case, and purification case's output end intercommunication of the hose.

Preferably, the adjusting part includes the curb plate, the right-hand member downside of curb plate with the left end upper side of backup pad is connected, and the top middle part longitudinal connection of backup pad has the regulating spindle, the outside cover of regulating spindle is equipped with the rubber pad to the upside region and the downside region of regulating spindle set up circular axle and square axle respectively, and the cross-section diameter of circular axle is less than the cross-section side length of square axle, the left side middle part region of regulating plate is provided with the quad slit with square axle looks adaptation, and the regulating spindle runs through the quad slit, the left end of regulating plate is the fillet structure to the right-hand member upside transverse connection of curb plate has the fixed plate, the top of regulating spindle is connected with the bottom of fixed plate, and the left side and the right side of fixed plate all vertically are provided with the screw hole to the equal spiro union of every screw hole inside is equipped with accommodate screw rod.

Further, elastic component includes flexible pipe, telescopic link and spring, flexible pipe one end with the tight board in top is connected to the other end of flexible pipe is provided with the opening, the one end of telescopic link inserts to flexible pipe in from the opening to the one end that lies in flexible pipe on the telescopic link is provided with the diameter and is greater than the open-ended limiting plate, passes through between the inner wall of limiting plate and flexible pipe spring coupling, the other end of telescopic link with the lateral wall of back shaft is connected.

Still further, it includes metal mesh and filter cloth to purify the subassembly, metal mesh and filter cloth pass through bearing structure and install inside the purifying box in proper order from right to left to the top of metal mesh and filter cloth is all inclined to the right and is set up, bearing structure includes outer frame and internal frame, and the top of outer frame, rear end and bottom respectively with the interior roof, rear side inner wall and the interior diapire of purifying box are connected, and the front end of purifying box is provided with the opening, and articulated on the opening have a apron, and the other end of apron is connected with the purifying box through the hasp lock, and the front end of outer frame is provided with the logical groove that is fit for the internal frame embedding, and the internal frame slides through logical groove and nestification inside the outer frame, metal mesh and filter cloth are installed in respective internal frame, and the front end of internal frame is provided with the recess that is used for getting and put.

As a further scheme of this scheme, the bottom front side and the rear side of suction hood all are provided with the slider, the right front side and the right rear side on workstation top all transversely are provided with the spout, two sliders respectively with two spout sliding fit, the bottom front side, the rear side and the right side end point department of suction hood all install the gyro wheel to the bottom of gyro wheel with the top contact of workstation.

As a further aspect of the present invention, a weather strip is attached to the front end of the outer frame.

On the basis of the scheme, the front end of the cover plate is provided with an observation window.

On the basis of the scheme, the left end of the lead screw is provided with a hand wheel.

(III) advantageous effects

Compared with the prior art, the utility model provides a centrifuge with automatic discharge function possesses following beneficial effect:

1. the utility model discloses in, through the back shaft, the cooperation of elastic component and top grip block, can be with the outside at back shaft and top grip block of the filter shell suit that needs polished, make the roof cap top support tightly with the interior roof middle part of filter shell, elastic support through elastic component, make the top grip block all with support on filter shell's inner wall, through using adjustment assembly, the regulation compresses tightly the cap and compresses tightly on filter shell top, through rotating the lead screw, promote the pole of polishing and remove to the position that contacts with filter shell along the direction of bracing piece, through rotating lock nut, the position of fixed lead screw, prevent that the pole position of polishing from removing, rotation through the motor, drive the driving gear rotates, under driven gear's cooperation, make the cap that compresses tightly rotate under the effect of pivot, because compress tightly cap and roof cap compress tightly filter shell, consequently under the rotation that compresses tightly the cap, can make filter shell use the back shaft as the center to rotate, thereby can make the inner wall and the outer wall of the continuous filter shell of the brush that rotates in-process of polishing on top grip block and the pole polish and polish, the inner wall and the production efficiency of filter shell that can carry out the improvement.

2. The utility model discloses in, induced draft through negative-pressure air fan, make the inside negative pressure that produces of suction hood, can absorb the in-process that polishes containing clastic gas, filter through purifying the subassembly in the absorption process, hold back piece and dust etc. filtration and carry out subsequent processing inside the purifying box to the realization is to the air purification of the environment of polishing, and the air quality of the environment of reinforcing polishing prevents that the smoke and dust from filling up.

Drawings

Fig. 1 is a schematic view of a partially cut-away three-dimensional structure of the present invention;

FIG. 2 is a schematic view of a portion A of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure of FIG. 1 at B according to the present invention;

fig. 4 is a schematic view of a partial enlarged structure at C in fig. 1 according to the present invention;

FIG. 5 is a schematic view of the overall structure of the present invention;

fig. 6 is a schematic front view of the present invention.

In the figure: 1. a work table; 2. a support plate; 3. an adjusting plate; 4. a motor; 5. a driving gear; 6. a driven gear; 7. a rotating shaft; 8. a compression cap; 9. a support shaft; 10. a top cap; 11. a tightening plate; 12. a support bar; 13. grinding the rod; 14. polishing a brush; 15. a lead screw; 16. a dust hood; 17. a hose; 18. a purification box; 19. a negative pressure fan; 20. a side plate; 21. an adjustment shaft; 22. a rubber pad; 23. a circular shaft; 24. a square shaft; 25. a fixing plate; 26. adjusting the screw rod; 27. a telescopic pipe; 28. a telescopic rod; 29. a spring; 30. a limiting plate; 31. an outer frame; 32. an inner frame; 33. a cover plate; 34. a slider; 35. a roller; 36. a sealing strip; 37. an observation window; 38. a handwheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-6, a polishing device for manufacturing a filter housing comprises a worktable 1, a supporting plate 2 is longitudinally connected to the left side of the top end of the worktable 1, an adjusting plate 3 is connected to the top end of the supporting plate 2 through an adjusting assembly, the adjusting assembly comprises a side plate 20, the lower side of the right end of the side plate 20 is connected to the upper side of the left end of the supporting plate 2, an adjusting shaft 21 is longitudinally connected to the middle of the top end of the supporting plate 2, a rubber pad 22 is sleeved outside the adjusting shaft 21, a circular shaft 23 and a square shaft 24 are respectively arranged in the upper side area and the lower side area of the adjusting shaft 21, the cross-sectional diameter of the circular shaft 23 is smaller than the cross-sectional side length of the square shaft 24, a square hole matched with the square shaft 24 is arranged in the middle area of the left side of the adjusting plate 3, the adjusting shaft 21 penetrates through the square hole, the left end of the adjusting plate 3 is in a rounded structure, and a fixing plate 25 is transversely connected to the upper side of the side plate 20, the top end of the adjusting shaft 21 is connected with the bottom end of the fixing plate 25, threaded holes are longitudinally formed in the left side and the right side of the fixing plate 25, an adjusting screw rod 26 is screwed in each threaded hole, the adjusting plate 3 can be moved up and down along the direction of the adjusting shaft 21 through a square hole, so that the height of the adjusting plate 3 can be lifted, the angle of the adjusting plate 3 can be conveniently rotated when the adjusting plate 3 is lifted to a high position through the design of the round shaft 23, a filter shell needing polishing can be conveniently sleeved on the supporting shaft 9, the position deviation of the adjusting plate 3 after stable placement can be prevented through the matching of the square shaft 24 and the square hole, so that the pressing cap 8 and the top cap 10 can be longitudinally positioned on the same axis, after the adjusting plate 3 is placed, the adjusting screw rod 26 can be downwards rotated to press the adjusting screw rod 26 to press the adjusting plate 3, the use stability of the adjusting plate 3 is ensured, through the design of the rubber pad 22, because the rubber pad 22 has the compressible characteristic, a certain adjustable distance exists between the adjusting plate 3 and the supporting plate 2, thereby ensuring that the pressing cap 8 and the top cap 10 clamp the filter shell, the top end of the adjusting plate 3 is provided with the motor 4, the bottom output shaft of the motor 4 is rotatably connected with the driving gear 5 through the adjusting plate 3, the right side of the driving gear 5 is meshed with the driven gear 6, the top end of the driven gear 6 is rotatably connected with the bottom end of the adjusting plate 3 through the rotating shaft 7, the bottom end of the rotating shaft 7 is connected with the pressing cap 8 through the driven gear 6, the top end of the workbench 1 is longitudinally and fixedly connected with the supporting shaft 9, the supporting shaft 9 and the rotating shaft 7 are longitudinally and concentrically arranged, the top end of the supporting shaft 9 is rotatably connected with the top cap 10, the circumferential outer wall of the supporting shaft 9 is connected with the top pressing plate 11 through a plurality of groups of elastic assemblies, through the cooperation of the supporting shaft 9, the elastic component and the tightening plate 11, a filter shell to be polished can be sleeved outside the supporting shaft 9 and the tightening plate 11, the top end of the top cap 10 is tightly abutted to the middle part of the inner top wall of the filter shell, the tightening plate 11 is supported on the inner wall of the filter shell through the elastic support of the elastic component, the elastic component comprises an extension tube 27, an extension rod 28 and a spring 29, one end of the extension tube 27 is connected with the tightening plate 11, the other end of the extension tube 27 is provided with an opening, one end of the extension rod 28 is inserted into the extension tube 27 from the opening, a limiting plate 30 with a diameter larger than the opening is arranged at one end of the extension tube 27 on the extension rod 28, the limiting plate 30 is connected with the inner wall of the extension tube 27 through the spring 29, the other end of the extension rod 28 is connected with the outer side wall of the supporting shaft 9, and the elastic component 28, the cooperation of flexible pipe 27 and spring 29 is used, make puller plate 11 have elasticity, can be fine carry out even support with filter housing inside, guarantee its stability in use, the upside and the downside of backup pad 2 all are provided with the through-hole that runs through about, and every through-hole is inside to be slided and to be provided with bracing piece 12, the right-hand member of two bracing pieces 12 vertically is provided with polish rod 13, all be provided with polish brush 14 on the lateral wall of each puller plate 11 and polish rod 13's the lateral wall, polish rod 13's left end middle part rotates and is connected with lead screw 15, lead screw 15's left end spiral shell passes backup pad 2 and stretches out to the left end of backup pad 2 external world, and lead screw 15 goes up the spiral shell and is equipped with lock nut, through rotating lead screw 15, promote polish rod 13 along the direction of bracing piece 12 and remove to the position of contacting with filter housing, through rotating lock nut, the position of fixed lead screw 15, prevent polish rod 13 position and remove, thereby when filter housing rotates, can polish filter housing through polish rod 13, 38 is installed to the left end of lead screw 15, be convenient for rotate lead screw 15 and adjust the use.

It should be further noted that a dust hood 16 is disposed on the right side of the workbench 1, the dust hood 16 is in a semi-surrounding shape, so as to enhance dust collection effect, the front end and the rear end of the dust hood 16 are both communicated with hoses 17, a purification box 18 is disposed at the bottom end of the workbench 1, an input end of the purification box 18 is communicated with an output end of the hose 17, an output end of the purification box 18 is communicated with a negative pressure fan 19, a purification component is disposed inside the purification box 18, air is sucked by the negative pressure fan 19, so that negative pressure is generated inside the dust hood 16, gas containing debris in the polishing process can be absorbed, the gas containing debris is filtered by the purification component in the absorption process, the debris, dust and the like are filtered and intercepted inside the purification box 18 for subsequent treatment, so as to achieve air purification of the polishing environment, enhance air quality of the polishing environment, and prevent smoke from diffusing, the purification component comprises a metal mesh and a filter cloth, the metal net and the filter cloth are sequentially arranged inside the purification box 18 from right to left through a supporting structure, the metal net can be used for primarily filtering harder and larger particles, the filter cloth is prevented from being damaged, the bearing capacity of the filter cloth is reduced, the service life of the filter cloth is prolonged, the top ends of the metal net and the filter cloth are arranged in a right inclined mode, the condition that impurities such as broken dust are attached to the metal net and the filter cloth is reduced, the trapped impurities such as the broken dust can fall into the purification box 18 conveniently, the supporting structure comprises an outer frame 31 and an inner frame 32, the top end, the rear end and the bottom end of the outer frame 31 are connected with an inner top wall, a rear inner wall and an inner bottom wall of the purification box 18 respectively, an opening is formed in the front end of the purification box 18, a cover plate 33 is hinged to the opening, the metal net or the filter cloth can be cleaned and replaced conveniently, and the other end of the cover plate 33 is connected with the purification box 18 through a hasp lock, the cover plate 33 is convenient to lock and close, the front end of the outer frame 31 is provided with a through groove suitable for embedding the inner frame 32, the inner frame 32 is embedded in the outer frame 31 in a sliding mode through the through groove, the metal net and the filter cloth are installed in the respective inner frame 32, the inner frame 32 is convenient to extract and place through the design of the through groove, the metal net and the filter cloth are convenient to clean or replace, the front end of the inner frame 32 is provided with a groove for taking and placing, a user can conveniently pull the inner frame 32 by buckling the groove, the front side and the rear side of the bottom end of the dust hood 16 are respectively provided with a sliding block 34, the front side and the rear side of the right end of the top end of the workbench 1 are respectively and transversely provided with a sliding groove, the two sliding blocks 34 are respectively in sliding fit with the two sliding grooves, the dust hood 16 is convenient to transversely move through the matching of the sliding blocks 34 and the sliding grooves, when the filter shell is sleeved, the dust hood 16 slides outwards, the filter shell is convenient to assemble, when polishing, the dust hood 16 is moved to be surrounded outside a polishing area, the polishing effect is enhanced, the rollers 35 are installed at the end points of the front side, the rear side and the right side of the bottom end of the dust hood 16, the bottom end of each roller 35 is in contact with the top end of the workbench 1, the stable moving capacity of the dust hood 16 is improved through the rotation of the rollers 35, meanwhile, the rollers 35 are the rollers 35 with locking functions, the position of the dust hood after being used is convenient to limit, the sealing strip 36 is adhered to the front end of the outer frame 31, the sealing effect between the outer frame 31 and the cover plate 33 is enhanced, gas containing debris and dust is prevented from passing through the outer frame without being filtered, the observation window 37 is arranged at the front end of the cover plate 33, the situation that the inside of the purifying box 18, the debris and the dust accumulated on the metal net and the filter cloth can be observed in time is convenient, and the cleaning is timely.

The motor 4 in this embodiment is a conventional device purchased on the market and known to those skilled in the art, and the model can be selected or customized according to actual needs, and we only use the conventional device in this patent, and do not improve the structure and function of the conventional device, and the setting mode, the installation mode and the electrical connection mode of the conventional device are adopted.

To sum up, the working principle and working process of the centrifuge with the automatic discharging function are that, when in use, the whole centrifuge is firstly placed at a use position through the workbench 1, then two adjusting screw rods 26 are unscrewed to enable the adjusting plate 3 to move upwards and rotate at the circular shaft 23 to a position which does not affect the sleeving of the filter shell on the support shaft 9, then the filter shell to be polished is sleeved on the support shaft 9, the top cap 10 is pushed against the inside of the top end of the filter shell, simultaneously, under the action of the elastic component, the plurality of top tightening plates 11 are used for supporting the inner wall of the filter shell tightly, then a hand wheel 38 is used, the screw rods 15 are rotated to enable the polishing brush 14 on the polishing rod 13 to be in contact with the outer side wall of the filter shell, then the adjusting plate 3 is rotated to the original layer by layer, the adjusting plate 3 is placed downwards, the bottom end of the pressing cap 8 is in contact with the top end of the filter shell, the adjusting screw rods 26 are rotated to enable the pressing cap 8 to be tightly pressed against the top end of the filter shell, then the sliding dust suction hood 16 is surrounded outside the polishing area, the negative pressure fan 19 and the suction hood is opened, the dust can be filtered by the suction hood 16, and dust can be filtered in the subsequent dust absorption process of the filter shell, and dust absorption box can be filtered by the dust absorption box, and the dust absorption box through the suction hood 16, and the suction box.

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

Claims (8)

1. The utility model provides a grinding device for filter housing manufacturing, includes workstation (1), its characterized in that, the top left side of workstation (1) is longitudinally connected with backup pad (2), the top of backup pad (2) is connected with regulating plate (3) through adjusting component, motor (4) are installed on the top of regulating plate (3), the bottom output shaft of motor (4) rotates and passes regulating plate (3) and be connected with driving gear (5), the right side meshing of driving gear (5) has driven gear (6), the top of driven gear (6) rotates through pivot (7) and is connected in the bottom of regulating plate (3), the bottom of pivot (7) is passed driven gear (6) and is connected with compressing cap (8), workstation (1) top longitudinal fixation is connected with back shaft (9), and back shaft (9) and pivot (7) longitudinal concentric setting, the top of back shaft (9) rotates and is connected with hood (10), be connected with roof plate (11) through multiunit elastic component on the circumference outer wall of back shaft (9), the upside and the downside of backup pad (2) all are provided with the through-hole that runs through about, and the inside all slide and be provided with bracing piece (12), two lateral wall (13) that polish pole (13) and polish on the pole (13) that polish on the right-hand member (13) and each are provided with polish pole (13), the left end middle part of pole (13) of polishing is rotated and is connected with lead screw (15), and the left end spiral shell of lead screw (15) passes backup pad (2) and stretches out to the left end of backup pad (2) external world to the spiral shell is equipped with lock nut on lead screw (15), the right side of workstation (1) is provided with suction hood (16), and suction hood (16) are the semi-surrounding form, and the front end and the rear end of suction hood (16) all communicate there are hose (17), purifying box (18) are installed to the bottom of workstation (1) to the input of purifying box (18) and the output intercommunication of hose (17), negative-pressure air fan (19) are installed in the output intercommunication of purifying box (18), and the inside of purifying box (18) is provided with the purification subassembly.

2. The grinding device for manufacturing the filter housing as claimed in claim 1, wherein the adjusting assembly comprises a side plate (20), the lower side of the right end of the side plate (20) is connected with the upper side of the left end of the supporting plate (2), an adjusting shaft (21) is longitudinally connected with the middle of the top end of the supporting plate (2), a rubber pad (22) is sleeved outside the adjusting shaft (21), the upper side area and the lower side area of the adjusting shaft (21) are respectively provided with a round shaft (23) and a square shaft (24), the diameter of the cross section of the round shaft (23) is smaller than the length of the cross section of the square shaft (24), the middle area of the left side of the adjusting plate (3) is provided with a square hole matched with the square shaft (24), the adjusting shaft (21) penetrates through the square hole, the left end of the adjusting plate (3) is in a round-chamfered structure, the upper side of the right end of the side plate (20) is transversely connected with a fixing plate (25), the top end of the adjusting shaft (21) is connected with the bottom end of the fixing plate (25), the left side and the right side of the fixing plate (25) is longitudinally provided with a threaded hole, and each threaded hole is internally provided with a screw rod (26).

3. A sanding device for the manufacture of filter housings according to claim 2, characterized in that the elastic assembly comprises a telescopic tube (27), a telescopic rod (28) and a spring (29), one end of the telescopic tube (27) is connected with the tightening plate (11) and the other end of the telescopic tube (27) is provided with an opening, one end of the telescopic rod (28) is inserted into the telescopic tube (27) from the opening, and one end of the telescopic rod (28) located in the telescopic tube (27) is provided with a limit plate (30) with a diameter larger than the opening, the limit plate (30) is connected with the inner wall of the telescopic tube (27) through the spring (29), and the other end of the telescopic rod (28) is connected with the outer side wall of the support shaft (9).

4. The polishing device for manufacturing the filter housing as claimed in claim 3, wherein the purification assembly comprises a metal net and a filter cloth, the metal net and the filter cloth are sequentially installed inside the purification box (18) from right to left through a support structure, the top ends of the metal net and the filter cloth are both obliquely arranged right, the support structure comprises an outer frame (31) and an inner frame (32), the top end, the rear end and the bottom end of the outer frame (31) are respectively connected with the inner top wall, the rear inner wall and the inner bottom wall of the purification box (18), the front end of the purification box (18) is provided with an opening, a cover plate (33) is hinged on the opening, the other end of the cover plate (33) is connected with the purification box (18) through a snap lock, the front end of the outer frame (31) is provided with a through groove suitable for embedding the inner frame (32), the inner frame (32) is slidably nested inside the outer frame (31) through the through groove, the metal net and the filter cloth are installed in the respective inner frame (32), and the front end of the inner frame (32) is provided with a groove for taking and placing.

5. The grinding device for manufacturing the filter shell according to claim 4, characterized in that sliding blocks (34) are arranged on the front side and the rear side of the bottom end of the dust hood (16), sliding grooves are transversely arranged on the front right side and the rear right side of the top end of the workbench (1), the two sliding blocks (34) are respectively in sliding fit with the two sliding grooves, rollers (35) are arranged at the end points of the front side, the rear side and the right side of the bottom end of the dust hood (16), and the bottom end of each roller (35) is in contact with the top end of the workbench (1).

6. A sanding device for filter housing manufacture as defined in claim 5, characterized in that the front end of the outer frame (31) is glued with a sealing strip (36).

7. A sanding device for filter housing manufacture as defined in claim 6, characterized in that the front end of the cover plate (33) is provided with a viewing window (37).

8. A sanding device for filter housing manufacture as defined in claim 7, characterized in that the left end of the lead screw (15) is fitted with a hand wheel (38).

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