CN214610473U

CN214610473U - Negative pressure dust collector of powder stirring feed cylinder

Info

Publication number: CN214610473U
Application number: CN202120827871.6U
Authority: CN
Inventors: 谭若山; 张万永
Original assignee: Shanghai Dashan New Material Technology Co ltd
Current assignee: Shanghai Dashan New Material Technology Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-05
Anticipated expiration: 2031-04-21

Abstract

The application relates to a negative pressure dust collector of powder stirring feed cylinder belongs to the negative pressure dust removal field. It is including setting up in the negative pressure suction mechanism of stirring feed cylinder top, negative pressure suction mechanism includes that the negative pressure that communicates with the negative pressure pump is responsible for, a plurality of communicates the negative pressure branch pipe on the negative pressure is responsible for and is fixed in the negative pressure branch pipe and keeps away from the suction hood of negative pressure one end is responsible for, the suction hood is located the top of stirring feed cylinder feed inlet. This application has the possibility that reduces to add in the raw materials in-process powder and raises and get into the ambient air, reduces the pollution that the powder that flies apart formed to the ambient air, reduces the effect to operating personnel's harm simultaneously.

Description

Negative pressure dust collector of powder stirring feed cylinder

Technical Field

The application relates to the field of water-based paint production, in particular to a negative pressure dust removal device of a powder stirring material cylinder.

Background

The water paint is coated on the surface of a protected or decorated object and can form a firmly attached continuous film with the object to be coated, and the water paint is produced by compounding a plurality of raw materials, wherein the raw materials need to be stirred by a stirring cylinder. Stirring feed cylinder is more common mechanical apparatus in the industrial production, and the stirring through stirring feed cylinder can obtain even mixture through the stirring of stirring feed cylinder between the mainly used different components, and stirring feed cylinder can reduce operating personnel's working strength to promote work efficiency.

Chinese utility model patent with publication number CN201906574U in the correlation technique, it discloses a stirring storage bucket, wherein including the support, the crane, the staving, the upper cover, the stirring claw, drive mechanism and motor, the crane is installed on the support, the crane controls the relative motion of staving and upper cover, install staving and upper cover on the support, drive mechanism and motor are fixed at the top of support, motor drive is in drive mechanism, drive mechanism drives in the stirring claw of upper cover inboard, the stirring claw is the crotch form, by the installation department, crotch and go up the crotch, the crotch takes place to rotate in the department of buckling. The barrel body is fixedly arranged on the support, and the upper cover is arranged on the lifting frame.

With respect to the related art in the above, the inventors consider that: during the process of adding the raw materials, the powder can be raised, and the fine particles scattered in the ambient air can pollute the ambient air and cause harm to the health of operators.

SUMMERY OF THE UTILITY MODEL

In order to reduce the powder that raises at the reinforced in-process and fly away in the air on every side, reduce the pollution to the air on every side, reduce the harm to operating personnel, this application provides a negative pressure dust collector of powder stirring feed cylinder.

The application provides a negative pressure dust collector of powder stirring feed cylinder adopts following technical scheme:

the utility model provides a negative pressure dust collector of powder stirring feed cylinder, is including setting up in the negative pressure updraft ventilator of stirring feed cylinder top, negative pressure updraft ventilator includes that the negative pressure that communicates with the negative pressure pump is responsible for, a plurality of communicates the negative pressure branch pipe on the negative pressure is responsible for and is fixed in the negative pressure branch pipe and keeps away from the suction hood of negative pressure person in charge one end, the suction hood is located the top of stirring feed cylinder feed inlet.

Through adopting above-mentioned technical scheme, the negative pressure is responsible for and is linked together with the negative pressure pump, for a plurality of intercommunication provides the negative pressure in the negative pressure branch pipe that the negative pressure was responsible for, a plurality of negative pressure branch pipe keeps away from that the negative pressure is responsible for one end mobilizable setting in stirring feed cylinder top for absorb the peripheral powder that raises of stirring feed cylinder, and the suction hood that negative pressure branch pipe kept away from negative pressure branch pipe one end fixed connection has enlarged the scope of absorbing, provides the guide effect for the suction of the powder granule that raises simultaneously.

Preferably, the inside bilateral symmetry of suction hood with negative pressure branch pipe fixed connection one end has seted up pivot hole one and pivot hole two, pivot hole two runs through the medial surface and the lateral surface of suction hood, be provided with the baffle in the suction hood, baffle outer peripheral face fixedly connected with pivot one, pivot one is inserted and is located in the pivot hole one, the baffle outer peripheral face is located two corresponding position fixedly connected with pivot two in the pivot hole, pivot two wear to locate two in the pivot hole extremely the suction hood outside, the pivot is two located suction hood outside one end fixedly connected with knob.

Through adopting above-mentioned technical scheme, pivot one and pivot two on the baffle are inserted and are located the pivot hole one and the pivot hole in the suction hood, provide certain spacing for the baffle in, make the baffle can be along pivot one and pivot two rotatoryly in the suction hood to the opening size of control suction hood, knob fixed connection is two in the pivot in suction hood outside one end, is convenient for make the baffle rotate, thereby is convenient for adjust the opening size.

Preferably, the outer side surface of the dust hood is fixedly connected with a handle.

Through adopting above-mentioned technical scheme, the handle is fixed in the suction hood outside, and the operating personnel of being convenient for grips the handle and removes the suction hood to the dust absorption position of stirring feed cylinder top ideal.

Preferably, the negative pressure dust collector further comprises a lifting mechanism for lifting the dust hood, and the lifting mechanism comprises a clamping assembly for clamping the dust hood and a lifting assembly for lifting the clamping mechanism.

Through adopting above-mentioned technical scheme, centre gripping subassembly is used for with the suction hood together with the negative pressure branch pipe centre gripping is fixed. The lifting assembly is used for lifting the clamping assembly, so that the dust hood clamped on the clamping assembly can be lifted together with the negative pressure branch pipe, and the negative pressure air draft mechanism can be better stored in a non-working state.

Preferably, the centre gripping subassembly includes two supporting rods and is used for fixing the fixing base of supporting rod, the supporting rod symmetry is fixed in the fixing base, the supporting rod is kept away from fixing base one end shape with the suction hood lateral surface agrees with mutually, two the supporting rod is kept away from fixing base one end cooperation is formed with the breach, the width of breach is greater than the diameter of branch pipe just is less than suction hood top outer lane diameter.

Through adopting above-mentioned technical scheme, supporting rod one end is fixed in the fixing base, makes the position of supporting rod fixed to make the centre gripping subassembly have more the wholeness, the structure is more firm. The clamping rod is kept away from one end of the fixing seat, the shape of the clamping rod is matched with the outer side face of the dust hood, the clamping rod is in uniform contact with the outer side face of the dust hood, the occurrence of the situation that the dust hood and the clamping rod form stress concentration due to local contact is reduced, and the damage of the dust hood due to the stress concentration can be caused. The width of the notch is larger than the diameter of the branch pipe, so that the dust hood and the negative pressure branch pipe can be placed in a clamping position, the width of the notch is smaller than the diameter of the outer ring at the top of the dust hood, and the possibility that the dust hood falls off from the clamping position when the dust hood is placed in the clamping position of the clamping rod is reduced.

Preferably, the lifting unit includes a base plate fixedly connected to the wall, an upper fixing plate is fixed to the top of the base plate, a motor is fixed to the top surface of the upper fixing plate, an output shaft hole is formed in the top surface of the upper fixing plate, an output shaft of the motor penetrates through the output shaft hole, an output shaft of the motor is fixedly connected with a lead screw, the lead screw coincides with an axis of the output shaft of the motor, a nut seat is matched on the lead screw, the nut seat is fixedly connected with the clamping unit, the nut seat is close to a guide block fixedly connected to one side of the base plate, the guide block is far away from the side face of one side of the nut seat, a guide rail is inserted in the guide groove, and the guide rail is far away from one side of the guide block and fixedly connected to the base plate.

Through adopting above-mentioned technical scheme, the mounting of upper fixed plate for the motor provides the supporting role, and motor and lead screw fixed connection drive the lead screw through the rotation of motor and do and like the rotary motion, under the guide effect that guide block on fixed connection on the nut and the guide rail of vertical setting produced, make the nut of cooperation on the lead screw do the motion of vertical direction.

Preferably, the base plate is fixedly connected with a middle fixing plate and a lower fixing plate, the middle fixing plate is located below the upper fixing plate, a screw rod hole is formed in the top surface of the middle fixing plate, a screw rod supporting seat fixing end is embedded in the screw rod hole, the upper portion of the screw rod penetrates through a bearing hole of the screw rod supporting seat fixing end, the lower fixing plate is located below the middle fixing plate, a screw rod supporting seat supporting end is fixed on the top surface of the middle fixing plate, and the bottom of the screw rod is inserted into the bearing hole of the screw rod supporting seat supporting end.

Through adopting above-mentioned technical scheme, well fixed plate and bottom plate and base plate fixed connection, the lead screw hole has been seted up to well fixed plate top surface and has inlayed in the hole and establish lead screw supporting seat stiff end, bottom plate top surface fixedly connected with lead screw supporting seat supports the end, the lead screw is inserted and is located lead screw supporting seat stiff end and lead screw supporting seat support end, it takes place to have reduced the lead screw and keep away from motor one end appearance too big wobbling condition when rotating, the steadiness of lifting unit has been improved to make the centre gripping subassembly when rising, falling, the motion can be stabilized.

Preferably, one end, far away from the fixing seat, of the clamping rod is fixedly provided with a guide rod, the guide rod and the clamping rod are located on the same horizontal plane, and the guide rod inclines towards the outer side of the notch.

Through adopting above-mentioned technical scheme, outside open guide bar puts into the centre gripping position for negative pressure branch pipe and provides the guide effect, makes the negative pressure branch pipe put into the clamping position together with the breach that passes that the cover can be more convenient of breathing in, and simultaneously, the opening scope of outside open guide bar is bigger, has reduced negative pressure branch pipe and has stabbed the clamping lever tip and lead to the possibility that negative pressure branch pipe damaged.

In summary, the present application includes at least one of the following beneficial technical effects:

the negative pressure main pipe is communicated with the negative pressure pump and provides negative pressure for the negative pressure branch pipes communicated with the negative pressure main pipe, one ends of the negative pressure branch pipes, far away from the negative pressure main pipe, are movably arranged above the stirring material barrel and used for absorbing powder raised at the periphery of the stirring material barrel, and the negative pressure branch pipes, far away from the dust hood fixedly connected with one ends of the negative pressure branch pipes, enlarge the absorption range and provide a guiding effect for the suction of the raised powder particles.

The first rotating shaft and the second rotating shaft on the baffle are inserted into the first rotating shaft hole and the second rotating shaft hole in the dust hood, so that the baffle can rotate along the first rotating shaft and the second rotating shaft in the dust hood when a certain limit is provided for the baffle, the opening size of the dust hood is controlled, the knob is fixedly connected to the second rotating shaft end in the outer side of the dust hood, the baffle is convenient to rotate, and the opening size is convenient to adjust.

The clamping assembly is used for clamping and fixing the dust hood together with the negative pressure branch pipe. The lifting assembly is used for lifting the clamping assembly, so that the dust hood clamped on the clamping assembly can be lifted together with the negative pressure branch pipe, and the negative pressure air draft mechanism can be better stored in a non-working state.

Drawings

FIG. 1 is a schematic structural diagram of an overall negative pressure dust collector of a powder stirring material cylinder according to an embodiment of the present application.

Fig. 2 is an exploded view of the suction hood of fig. 1.

Fig. 3 is a sufficient schematic view of the lifting mechanism shown in fig. 1.

Description of reference numerals: 1. a negative pressure air draft mechanism; 11. a negative pressure main pipe; 12. a negative pressure branch pipe; 13. a dust hood; 131. a baffle plate; 1311. a first rotating shaft; 1312. a second rotating shaft; 132. a first rotating shaft hole; 133. a second rotating shaft hole; 134. a knob; 135. a handle; 2. a lifting mechanism; 21. a clamping assembly; 211. a fixed seat; 212. a clamping rod; 213. a guide bar; 214. a notch; 22. a lifting assembly; 221. a substrate; 222. an upper fixing plate; 2221. an output shaft hole; 223. an electric motor; 224. a middle fixing plate; 2241. a screw hole; 2242. a fixed end of the screw rod supporting seat; 2243. a first bearing hole; 225. a lower fixing plate; 2251. a screw support base support end; 2252. a second bearing hole; 226. a nut seat; 2261. a threaded hole; 227. a screw rod; 228. a guide block; 2281. a guide groove; 229. a guide rail; 100. a wall; 200. the barrel was stirred.

Detailed Description

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

The embodiment of the application discloses negative pressure dust collector of powder stirring feed cylinder. Referring to fig. 1 and 2, the negative pressure dust removing device of the powder stirring cylinder 200 comprises a negative pressure air draft mechanism 1 and a lifting mechanism 2, the negative pressure air draft mechanism 1 comprises a negative pressure main pipe 11 communicated with a negative pressure pump, the negative pressure main pipe 11 is a cylindrical tubular structure, the negative pressure main pipe 11 is fixedly connected to the upper part of a wall 100, a plurality of negative pressure main pipes 11 are distributed on the negative pressure main pipe 11, a negative pressure branch pipe 12 is a flexible pipe, one end of the negative pressure branch pipe 12 is communicated with the negative pressure main pipe 11, one end of the negative pressure branch pipe 12 far away from the negative pressure main pipe 11 is fixedly connected with a dust hood 13, the upper part of the dust hood 13 is tubular and is fixedly connected with one end of the negative pressure branch pipe 12 far away from the negative pressure main pipe 11, the lower part of the dust hood 13 is in a horn shape with gradually enlarged diameter, the outer side wall of the lower part of the dust hood 13 is fixedly connected with a handle 135, an operator can place the dust hood 13 above a feed inlet of the stirring cylinder 200, under the action of the negative pressure pump, the main negative pressure pipe 11 and the branch negative pressure pipe 12 are in a negative pressure state, so that the dust hood 13 can suck the powder raised around the stirring cylinder 200.

Referring to fig. 2, a first rotating shaft hole 132 and a second rotating shaft hole 133 are symmetrically formed in the inner side wall of the upper portion of the dust hood 13, the second rotating shaft hole 133 penetrates through the outer side face and the inner side face of the upper portion of the dust hood 13, the first rotating shaft hole 132 and the second rotating shaft hole 133 are axially overlapped, a baffle 131 is rotatably connected to the inner side of the lower portion of the dust hood 13, a first rotating shaft 1311 is fixedly connected to the outer peripheral face of the baffle 131, the first rotating shaft 1311 is inserted into the first rotating shaft hole 132, a second rotating shaft 1312 is fixedly connected to the outer peripheral face of the baffle 131 at a position corresponding to the second rotating shaft hole 133, the second rotating shaft 1312 penetrates through the second rotating shaft hole 133 to the outer side of the lower portion of the dust hood 13, and a knob 134 is fixedly connected to one end of the second rotating shaft 1312 at the outer side of the dust hood 13.

Referring to fig. 2 and 3, the lifting mechanism 2 includes a clamping assembly 21, the clamping assembly 21 includes a fixing base 211, the fixing base 211 is a cuboid, a clamping rod 212 is fixedly connected to the top surface of the fixing base 211, the clamping rod 212 is rod-shaped, two clamping rods 212 are symmetrically distributed, one end of each clamping rod 212 is fixedly connected to the top surface of the fixing base 211, the shape of one end of each clamping rod 211, which is far away from the fixing base 211, is matched with the outer side surface of the lower portion of the dust hood 13, a notch 214 is formed by matching one end of each clamping rod 212, and the width between the notches 214 is greater than the diameter of the branch pipe and smaller than the diameter of the outer ring at the top of the dust hood 13. The end face of one end of the clamping rod 212, which is far away from the fixing seat 211, is fixedly connected with a guide rod 213, the guide rod 213 and the clamping rod 212 are located on the same horizontal plane, and the guide rod 213 inclines towards the outer side of the notch 214 to provide a guiding function for the dust hood 13 and the negative pressure straight pipe to be put into.

Referring to fig. 3, the lifting mechanism 2 further includes a lifting assembly 22, the lifting assembly 22 includes a substrate 221, the substrate 221 is in a shape of a rectangular parallelepiped plate, a side surface of one side of the substrate 221 is fixedly connected to the wall 100, a side surface of the substrate 221, which is away from the wall 100, is fixedly connected to an upper fixing plate 222, a middle fixing plate 224 and a lower fixing plate 225 from top to bottom, a top surface of the upper fixing plate 222 is coplanar with a top surface of the substrate 221, an output shaft hole 2221 penetrating through a top surface and a bottom surface of the upper fixing plate 222 is formed in a middle portion of the top surface of the upper fixing plate 222, a motor 223 is fixedly connected to the top surface of the upper fixing plate 222, and an output shaft of the motor 223 penetrates downward into the output shaft hole 2221; a screw rod hole 2241 penetrating through the top surface and the bottom surface of the middle fixing plate 224 is formed in the middle of the top surface of the middle fixing plate 224, the axis of the screw rod hole 2241 is overlapped with the axis of the output shaft hole 2221, a screw rod supporting seat fixing end 2242 is embedded in the screw rod hole 2241, a screw rod 227 is inserted into a bearing hole 2243 of the screw rod supporting seat fixing end 2242, and the screw rod 227 is upwards inserted into a bearing hole 2243 of the screw rod supporting seat fixing end 2242 and fixedly connected with an output shaft of the motor 223; the bottom surface of the lower fixing plate 225 is coplanar with the bottom surface of the base plate 221, the middle part of the top surface of the lower fixing plate 225 is fixedly connected with a support end 2251 of a lead screw support, the axis of a bearing hole two 2252 of the support end 2251 of the lead screw support coincides with the axis of a lead screw hole 2241, one end of the lead screw 227, which is far away from the middle fixing plate 224, is inserted into the bearing hole two 2252 of the support end 2251 of the lead screw support, and the lead screw 227 rotates in the bearing hole of the support end 2242 of the lead screw support and the bearing hole two 2252 of the support end 2251 of the lead screw support.

Referring to fig. 3, a nut seat 226 matched with the lead screw 227 is provided on the lead screw 227, the nut seat 226 is rectangular, a top surface of the nut seat 226 is provided with a threaded hole 2261 penetrating through a top surface and a bottom surface of the nut seat 226, the threaded hole 2261 provided on the top surface of the nut seat 226 is matched with an external thread of the lead screw 227, a side surface of the nut seat 226 away from the substrate 221 is fixedly connected with a side surface of the fixed seat 211 of the clamping assembly 21 close to the substrate 221, a side surface of the nut seat 226 close to the substrate 221 is fixedly connected with a guide block 228, the guide block 228 is rectangular, a side surface of the guide block 228 away from the nut seat 226 is provided with a guide groove 2281 penetrating through a top surface and a bottom surface of the guide block 228, a side surface of the substrate 221 away from the wall 100 is fixedly connected with a guide rail 229, the guide rail 229 is square, the guide rail 229 is vertically and fixedly connected with a side surface of the substrate 221 away from the wall 100, a top surface of the guide rail 229 is abutted against a bottom surface of the middle fixing plate 224, the bottom surface of the guide rail 229 abuts against the top surface of the lower fixing plate 225, the outer side surface of the guide rail 229 abuts against the inner side surface of the guide groove 2281, and the guide block 228 performs a sliding movement in the vertical direction along the outer side surface of the guide rail 229.

The implementation principle of the negative pressure dust collector of this application embodiment powder stirring feed cylinder is: when powder is to be added into the stirring barrel 200, an operator energizes the motor 223, the driven screw 227 enables the nut seat 226 matched with the screw 227 to drop the clamping assembly 21 under the guiding action of the guide block 228 and the guide rail 229, the dust hood 13 and the branch pipe are enabled to move vertically downwards along with the lifting of the clamping assembly 21, the operator holds the handle to remove the dust hood 13 and the negative pressure branch pipe 12, and the dust hood 13 and the negative pressure branch pipe 12 are moved to a position needing dust removal.

When the vacuum cleaner is not in use, an operator holds the handle 135 to place the vacuum cleaner 13 and the negative pressure branch pipe 12 into a clamping position through the notches 214 formed by the two clamping rods 212, and the driven screw 227 enables the nut seat 226 matched with the screw 227 to lift the clamping assembly 21 under the guiding action of the guide block 228 and the guide rail 229 under the driving of the motor 223, so that the vacuum cleaner 13 and the branch pipe can move vertically and upwards along with the lifting of the clamping assembly 21, and the vacuum cleaner 13 and the negative pressure branch pipe 12 in the non-use state can be better accommodated.

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

Claims

1. The utility model provides a negative pressure dust collector of powder stirring feed cylinder which characterized in that: including setting up in negative pressure exhaust mechanism (1) above stirring feed cylinder (200), negative pressure exhaust mechanism (1) includes and is responsible for (11), a plurality of intercommunication in negative pressure branch pipe (12) on negative pressure is responsible for (11) and is fixed in negative pressure branch pipe (12) with the negative pressure pump intercommunication and keeps away from the suction hood (13) of negative pressure is responsible for (11) one end, suction hood (13) are located the top of stirring feed cylinder (200) feed inlet.

2. The negative pressure dust collector of powder stirring cylinder of claim 1, characterized in that: the vacuum cleaner is characterized in that a first rotating shaft hole (132) and a second rotating shaft hole (133) are symmetrically formed in the vacuum cleaner (13) and at one end fixedly connected with the negative pressure branch pipe (12) in the left-right mode, the second rotating shaft hole penetrates through the inner side face and the outer side face of the vacuum cleaner (13), a baffle (131) is arranged in the vacuum cleaner (13), a first rotating shaft (1311) is fixedly connected to the outer peripheral face of the baffle (131), the first rotating shaft (1311) is inserted into the first rotating shaft hole (132), the outer peripheral face of the baffle (131) is located at the position corresponding to the second rotating shaft hole (133) and fixedly connected with a second rotating shaft (1312), the second rotating shaft (1312) penetrates through the second rotating shaft hole (133) to the outer side of the vacuum cleaner (13), and the second rotating shaft (1312) is located at one end fixedly connected with a knob (134) at the outer side of the vacuum cleaner (13).

3. The negative pressure dust collector of powder stirring cylinder of claim 1, characterized in that: the outer side surface of the dust hood (13) is fixedly connected with a handle (135).

4. The negative pressure dust collector of powder stirring cylinder of claim 1, characterized in that: the negative pressure dust collector further comprises a lifting mechanism (2) used for lifting the dust hood (13), and the lifting mechanism (2) comprises a clamping assembly (21) used for clamping the dust hood (13) and a lifting assembly (22) used for lifting the clamping assembly (21).

5. The negative pressure dust removing device for the powder stirring cylinder according to claim 4, characterized in that: centre gripping subassembly (21) include two supporting rod (212) and are used for fixing base (211) of supporting rod (212), supporting rod (212) symmetry is fixed in fixing base (211), supporting rod (212) are kept away from fixing base (211) one end shape with suction hood (13) lateral surface agrees with mutually, two supporting rod (212) are kept away from fixing base (211) one end cooperation is formed with breach (214), the width of breach (214) is greater than the diameter of branch pipe just is less than suction hood (13) top outer lane diameter.

6. The negative pressure dust removing device for the powder stirring cylinder according to claim 4, characterized in that: the lifting assembly (22) comprises a base plate (221) fixedly connected to a wall (100), an upper fixing plate (222) is fixed to the top of the base plate (221), a motor (223) is fixed to the top surface of the upper fixing plate (222), an output shaft hole (2221) is formed in the top surface of the upper fixing plate (222), an output shaft of the motor (223) penetrates through the output shaft hole (2221), a lead screw (227) is fixedly connected to an output shaft of the motor (223), the lead screw (227) is overlapped with an axis of an output shaft of the motor (223), a nut seat (226) is matched on the lead screw (227), the nut seat (226) is fixedly connected to the clamping assembly (21), a guide block (228) is fixedly connected to one side of the nut seat (226) close to the base plate (221), and a guide groove (2281) is formed in the side face of the guide block (228) far away from the nut seat (226), and a guide rail (229) is inserted into the guide groove (2281), and one side of the guide rail (229) far away from the guide block (228) is fixedly connected with the base plate (221).

7. The negative pressure dust removing device for the powder stirring cylinder according to claim 6, characterized in that: fixed plate (224) and bottom plate (225) in the still fixedly connected with of base plate (221), well fixed plate (224) are located upper fixed plate (222) below, screw hole (2241) has been seted up to well fixed plate (224) top surface, screw hole (2241) are embedded to be equipped with lead screw supporting seat fixed end (2242), lead screw (227) upper portion is worn to locate in bearing hole one (2243) of lead screw supporting seat fixed end (2242), bottom plate (225) are located well fixed plate (224) below, well fixed plate (224) top surface is fixed with lead screw supporting seat support end (2251), the bottom of lead screw (227) is inserted and is located in bearing hole two (2252) of lead screw supporting seat support end (2251).

8. The negative pressure dust removing device for the powder stirring cylinder according to claim 5, characterized in that: the clamping rod (212) is far away from one end of the fixed seat (211) and is fixedly provided with a guide rod (213), the guide rod (213) and the clamping rod (212) are located on the same horizontal plane, and the guide rod (213) inclines towards the outer side of the notch (214).