CN116295751B - Double-screw micro-scale - Google Patents
Double-screw micro-scale Download PDFInfo
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- CN116295751B CN116295751B CN202310154720.2A CN202310154720A CN116295751B CN 116295751 B CN116295751 B CN 116295751B CN 202310154720 A CN202310154720 A CN 202310154720A CN 116295751 B CN116295751 B CN 116295751B
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- transmission rod
- dispersing
- gear
- trigger
- assembly
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- 239000000463 material Substances 0.000 claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 239000006185 dispersion Substances 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 116
- 230000003014 reinforcing effect Effects 0.000 claims description 26
- 238000005192 partition Methods 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000009825 accumulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
- G01G17/06—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes having means for controlling the supply or discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/22—Weigh pans or other weighing receptacles; Weighing platforms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0258—Weight of the article
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Transmission Devices (AREA)
Abstract
The utility model relates to a twin-screw microbalance belongs to the microbalance field, and it includes the base, the feed cylinder, hopper and drive assembly, the feed cylinder sets up on the base, the hopper is linked together with the feed cylinder, rotate on the drive assembly and be connected with first transfer line and second transfer line, first transfer line extends to in the feed cylinder and coaxial coupling has first screw rod, the second transfer line extends to in the feed cylinder and coaxial coupling has the second screw rod, the intercommunication department of first transfer line and second transfer line and feed cylinder all is equipped with sealed the pad, all be equipped with the dispersion package who is used for dispersing piled up material on first transfer line and the second transfer line that is located the feed cylinder. The dispersing component disperses the materials at the sealing gasket, so that the possibility that the materials enter the driving component after being extruded by the sealing gasket is reduced, the driving component is not easy to damage, and the whole equipment can stably run.
Description
Technical Field
The application relates to the field of micro-scale, in particular to a double-screw micro-scale.
Background
The micro scale is an electromechanical integrated adding device for weighing powdery materials in batches, can realize batch multicomponent addition according to the formula requirement, and meets the requirements of batch addition of powdery micro materials in flour mill powder preparation working sections, food factories and other industries.
In the related art, the double-screw micro scale mainly comprises a hopper, a charging barrel, a first screw, a second screw, a gear box, a motor, a base and a weighing sensor, wherein the charging barrel is communicated with the hopper, the motor is connected with the gear box, the gear box is connected with the first screw and the second screw, and the gear box is communicated with the charging barrel. The first screw and the second screw extend into the charging barrel and rotate in the charging barrel, and the charging barrel and the motor are arranged on the base. The connection part of the gear box and the charging barrel is provided with a sealing gasket, and the first screw rod and the second screw rod are respectively corresponding to one sealing gasket. The operating personnel put into the hopper with the material, and material rethread hopper gets into in the feed cylinder, and first screw rod and second screw rod carry the material, and weighing sensor weighs the material.
Aiming at the related technology, the inventor finds that after the double-screw micro-scale is used for a long time, the materials in the feed cylinder are easy to accumulate, the sealing gasket is easy to extrude after the materials are accumulated, and after the sealing gasket is extruded and deformed, the materials are easy to enter the gear box to damage the internal structure of the gear box, so that the normal operation of the equipment is affected.
Disclosure of Invention
In order to improve the problems, the application provides a double-screw micro-scale.
The application provides a double screw micro balance adopts following technical scheme:
the double-screw micro scale comprises a base, a charging barrel, a hopper and a driving assembly, wherein the charging barrel is arranged on the base, the hopper is communicated with the charging barrel, the driving assembly is arranged on the base, the driving assembly is communicated with the charging barrel, a first transmission rod and a second transmission rod are rotationally connected to the driving assembly, the first transmission rod extends into the charging barrel and is coaxially connected with the first screw, the second transmission rod extends into the charging barrel and is coaxially connected with the second screw, sealing gaskets are arranged at the communicating positions of the first transmission rod and the second transmission rod and the charging barrel, and dispersing assemblies for dispersing and stacking materials are arranged on the first transmission rod and the second transmission rod in the charging barrel;
the dispersing assembly comprises a dispersing box and a dispersing plate, wherein the dispersing box is correspondingly sleeved on a first transmission rod and a second transmission rod in the charging barrel, the first transmission rod and the second transmission rod are rotationally connected with the corresponding dispersing boxes, the dispersing plate is slidably connected in the dispersing box, the dispersing plate extends out of the dispersing box, a plurality of dispersing columns are arranged on one side, close to the sealing gasket, of the dispersing plate, and a control mechanism for controlling the dispersing columns to reciprocate along the horizontal direction is arranged in the dispersing box.
Through adopting above-mentioned technical scheme, when the material is carried out weighing to needs, operating personnel put into the feed cylinder with the material from the hopper in, drive assembly starts and drives first transfer line and second transfer line and rotate, and first transfer line and second transfer line respectively drive first screw rod and second screw rod rotation to realize the transport of material. Meanwhile, the control mechanism is started and drives the dispersing plates to move along the horizontal direction, and then the dispersing plates drive the dispersing columns to move back and forth along the horizontal direction, so that the dispersing columns continuously disperse materials close to the sealing gasket, the possibility that the materials are stacked at the sealing gasket to squeeze the sealing gasket is reduced, and the materials are not easy to pass through the sealing gasket and then enter the driving assembly, so that the equipment can operate normally.
Preferably, the control mechanism comprises a transmission assembly and a control assembly, wherein a group of transmission assemblies are correspondingly arranged on the first transmission rod and the second transmission rod, the control assembly is arranged in the dispersion box, one side of the control assembly is connected with the transmission assembly, and the other side of the control assembly is connected with the dispersion plate;
the control assembly comprises a control shaft, a first gear and a second gear, the control shaft is rotationally connected in the dispersing box along the vertical direction, the first gear and the second gear are coaxially arranged on the control shaft, a plurality of control rods matched with the first gear are arranged on the dispersing plate, and the transmission assembly is used for controlling the first gear and the second gear to rotate.
Through adopting above-mentioned technical scheme, first transfer line and second transfer line rotate and drive corresponding drive assembly and start, drive assembly drive first gear rotation earlier, and first gear and control lever contact and control dispersion board stretch out the dispersion box to smash the material that is close to sealed pad department. The transmission assembly is contacted with the second gear and drives the second gear to reversely rotate, the second gear drives the control shaft and the first gear to reversely rotate in sequence, and the first gear is contacted with each control rod and drives the dispersing plate to partially retract into the dispersing box. When the transmission assembly is contacted with the first gear again, the dispersing plate stretches out of the dispersing box again, so that the function of continuously dispersing materials close to the sealing gasket is realized, and the phenomenon that the materials at the sealing gasket are accumulated is reduced.
Preferably, the transmission assembly comprises a worm and a worm wheel, wherein a worm is coaxially arranged on the first transmission rod and the second transmission rod, the worm wheel is meshed with the worm, the worm wheel is rotationally connected with the dispersing box, a rack matched with the first gear and the second gear is arranged on one side of the worm wheel, which is close to the control shaft, and the rack is wound by half of the worm wheel along the circumferential direction of the worm wheel.
Through adopting above-mentioned technical scheme, first transfer line and second transfer line drive corresponding worm and rotate, and the worm drives the worm wheel that corresponds again and rotates, and the worm wheel drives corresponding rack and rotates, and the rack contacts with first gear and drives first gear rotation earlier, and first gear contacts with the control rod and drives the dispersion board and move towards sealed the pad to each dispersion post disperses the material that is close to sealed pad department. When the rack contacts with the second gear, the rack drives the second gear to reversely rotate, the second gear drives the control shaft and the first gear to reversely rotate in sequence, and the first gear contacts with each control rod and drives the dispersion plate to move towards the direction away from the sealing gasket. When the rack contacts with the first gear again, the dispersing plate moves towards the sealing gasket again, so that materials close to the sealing gasket are dispersed repeatedly, and the possibility of extrusion of the sealing gasket caused by material accumulation is reduced.
Preferably, one end of the dispersion plate, which is far away from the dispersion column, is connected with a push plate, and the dispersion box is provided with a guide surface.
Through adopting above-mentioned technical scheme, the guide surface is convenient to provide the direction to the material is removed to first screw rod and second screw rod department again, and simultaneously when dispersion board along horizontal direction reciprocating motion, dispersion board drives the push pedal along horizontal direction reciprocating motion, under the effect of push pedal, has provided convenience for the material to first screw rod and second screw rod department again on the one hand, has blocked partial material on the other hand, makes the material be difficult for removing to sealed pad department, thereby further provides convenience for equipment comparatively stable work.
Preferably, the driving assembly is communicated with the charging barrel through a partition box, and an observation box is communicated with the bottom of the partition box.
Through adopting above-mentioned technical scheme, cut off case and cut off drive assembly and feed cylinder for the material that part sees through sealed pad is difficult for directly getting into in the drive assembly, and the material volume of revealing is judged to operating personnel accessible observation box simultaneously, so that operating personnel in time changes sealed pad.
Preferably, the partition box is internally provided with a cleaning assembly, the cleaning assembly comprises a hollow shaft and an annular plate, the first transmission rod and the second transmission rod are correspondingly sleeved with the hollow shaft, the hollow shaft is rotationally connected in the partition box, the annular plate is coaxially arranged on the hollow shaft, the annular plate is arranged on the outer side of the corresponding first transmission rod and the corresponding second transmission rod, bristles are respectively arranged on one side of the annular plate, which is close to the corresponding first transmission rod and the corresponding second transmission rod, and one side of the annular plate, which is close to the sealing gasket, and the partition box is internally provided with a triggering assembly for controlling the hollow shaft.
Through adopting above-mentioned technical scheme, after the phenomenon that the material was revealed in sealed pad department appears, when observing simultaneously that the material in the box is more, trigger the subassembly and start, trigger the subassembly and drive the hollow shaft rotation, the hollow shaft drives the annular plate that corresponds and rotates, and the brush hair on the annular plate clearance corresponds first transfer line and the second transfer line that corresponds, and the brush hair is cleared up sealed pad simultaneously for the material is difficult for the card in sealed pad department, thereby has further reduced the possibility that sealed pad department appears revealing.
Preferably, the trigger assembly comprises a trigger column, a trigger rod and a connecting gear, the trigger column is arranged in a partition box, a trigger groove is formed in the trigger column along the length direction of the trigger column, the trigger rod is slidably connected in the trigger groove, an electromagnet is arranged in the trigger groove, a first spring is arranged in the trigger groove, one end of the first spring is connected with the trigger rod, the other end of the first spring is connected with the electromagnet, the connecting gear is rotationally connected with one end of the trigger rod, far away from the trigger column, an inner gear is arranged on the inner wall of the hollow shaft, the trigger gear is coaxially arranged on the first transmission rod and the second transmission rod, and the trigger gear and the inner gear are meshed with the connecting gear.
Through adopting above-mentioned technical scheme, when the material volume in the observation box does not reach the settlement threshold value, the electro-magnet starts and attracts the trigger lever, and first spring is in compression state this moment, and connecting gear does not mesh with internal gear and trigger gear. When the material quantity in the observation box reaches a set threshold value, the electromagnet is closed, the trigger rod moves towards the direction away from the trigger post under the action of the resilience force of the first spring, when the connecting gear is meshed with the inner gear and the trigger gear, the trigger gear drives the connecting gear to rotate, the connecting gear drives the inner gear to rotate again, and the inner gear drives the hollow shaft to rotate again, so that the material in the partition box is cleaned, and the material is not easy to squeeze the sealing gasket.
Preferably, the connecting hole for the sealing gasket to be clamped is formed in the charging barrel, a first reinforcing disc is arranged on the inner wall of the connecting hole along the circumferential direction of the connecting hole, second reinforcing discs are coaxially arranged on the first transmission rod and the second transmission rod, and a first reinforcing groove matched with the first reinforcing disc and a second reinforcing groove matched with the second reinforcing disc are formed in the sealing gasket.
Through adopting above-mentioned technical scheme, first reinforcement dish has increased the area of contact of feed cylinder with sealed pad, and the second reinforcement dish has increased the area of contact between head rod and second connecting rod and the sealed pad that corresponds, has improved the connection stability of sealed pad and feed cylinder, provides the support for sealed pad simultaneously for first reinforcement dish and second reinforcement dish for sealed pad, has improved the barrier ability of sealed pad for sealed pad is difficult for directly warp after the extrusion.
Preferably, a filter plate is arranged in the hopper, and a plurality of filter holes are uniformly formed in the filter plate.
Through adopting above-mentioned technical scheme, the filter plate with the filtration pore conveniently disperses the material for in the difficult direct feed cylinder of great material of volume, thereby reduced the great material of volume and caused extruded possibility to sealed the pad, so that equipment is comparatively steady operation.
Preferably, be equipped with the crushing subassembly that is used for clearing up the filtration pore in the hopper, the crushing subassembly includes breaker plate and a plurality of broken post, breaker plate sliding connection is in the hopper, a plurality of grooves of stepping down have been seted up to one side that the breaker plate is close to the filter screen, and equal sliding connection is a broken post in each groove of stepping down, each all be equipped with the second spring in the groove of stepping down, the one end of second spring is connected with the broken post that corresponds, the other end is connected with the tank bottom of the groove of stepping down, each broken post all corresponds a filtration pore.
Through adopting above-mentioned technical scheme, when the filtration pore appears blocking up, operating personnel starts the cylinder, and the cylinder drives the breaker plate and removes, and the breaker plate drives each broken post again and removes, when broken post and filter plate contact, in the groove of stepping down that broken post withdrawal corresponds, the second spring is in compression state. When the crushing column is opposite to the filter hole, the crushing column is clamped into the filter hole at the corresponding position under the action of the resilience force of the second spring so as to clean the filter hole, and the possibility of blocking the filter hole by materials is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the dispersing plate, the dispersing column and the control mechanism, the control mechanism controls the dispersing plate and the dispersing column to reciprocate along the horizontal direction, so that the phenomenon that materials close to the sealing gasket are difficult to block is reduced, the materials squeeze the sealing gasket and enter the driving assembly, and the equipment can run more stably;
2. by arranging the guide surface and the push plate, the materials after being dispersed by the dispersion column are conveniently conveyed to the first screw and the second screw again, so that the possibility of stacking the materials at the sealing gasket is further reduced;
3. through setting up wall case and observation box, cut off the case and cut off the material for the material that part passed sealed pad is difficult for directly getting into in the drive assembly, and operating personnel accessible observation box judges the sealing performance of sealed pad simultaneously.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic diagram of a structure for embodying the positional relationship of a dispersing assembly and a cartridge according to an embodiment of the present application;
FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;
FIG. 4 is an enlarged schematic view of the portion B in FIG. 2;
FIG. 5 is a schematic diagram of a structure used for embodying the positional relationship of a partition box and a cartridge according to an embodiment of the present application;
FIG. 6 is an enlarged schematic view of the portion C of FIG. 5;
FIG. 7 is an enlarged schematic view of the portion D of FIG. 5;
fig. 8 is an enlarged schematic view of the portion E in fig. 1.
Reference numerals illustrate: 1. a base; 2. a charging barrel; 21. a hopper; 22. a connection hole; 221. a first reinforcing plate; 23. a filter plate; 231. filtering holes; 24. a crushing assembly; 241. a breaker plate; 242. crushing the column; 243. a relief groove; 244. a second spring; 245. a cylinder; 3. a drive assembly; 31. a first transmission rod; 311. a first screw; 312. a second reinforcing plate; 32. a second transmission rod; 321. a second screw; 33. a motor; 34. a gear box; 4. a sealing gasket; 41. a first reinforcing groove; 42. a second reinforcing groove; 5. a dispersion assembly; 51. a dispersion box; 52. a dispersion plate; 53. a dispersion column; 54. a control lever; 55. a push plate; 56. a guide surface; 6. a control mechanism; 61. a transmission assembly; 611. a worm; 612. a worm wheel; 62. a control assembly; 621. a control shaft; 622. a first gear; 623. a second gear; 624. a rack; 7. a partition box; 71. an observation box; 8. cleaning the assembly; 81. a hollow shaft; 82. an annular plate; 821. brushing; 9. a trigger assembly; 91. a trigger post; 911. a trigger slot; 92. a trigger lever; 93. a connecting gear; 94. an electromagnet; 95. a first spring; 96. a trigger gear; 97. an internal gear.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-8.
The embodiment of the application discloses a double-screw micro-scale. Referring to fig. 1 and 2, a twin-screw micro balance comprises a base 1, a charging barrel 2, a hopper 21 and a driving component 3, wherein the charging barrel 2 is fixed on the base 1, the hopper 21 is arranged on the charging barrel 2 and is communicated with the charging barrel 2, the driving component 3 is arranged on the base 1, and the driving component 3 is communicated with the charging barrel 2. One side of the driving component 3, which is close to the charging barrel 2, is rotationally connected with a first transmission rod 31 and a second transmission rod 32, the first transmission rod 31 and the second transmission rod 32 extend into the charging barrel 2, a first screw 311 is coaxially fixed on the first transmission rod 31 positioned in the charging barrel 2, and a second screw 321 is coaxially fixed on the second transmission rod 32 positioned in the charging barrel 2. And the communicating parts of the first transmission rod 31 and the second transmission rod 32 and the charging barrel 2 are respectively provided with a sealing gasket 4, and the first transmission rod 31 and the second transmission rod 32 are respectively provided with a dispersing component 5 for dispersing materials. The dispersing component 5 is convenient to disperse materials close to the sealing gasket 4, so that the sealing gasket 4 is not easy to accumulate, the possibility that the materials pass through the sealing gasket 4 and enter the driving component 3 is reduced, and the equipment can work stably.
Referring to fig. 2 and 3, a connecting hole 22 for clamping the gasket 4 is formed in the charging barrel 2, a first reinforcing disc 221 is fixed on the inner wall of the connecting hole 22 along the circumferential direction of the connecting hole, a second reinforcing disc 312 is coaxially fixed on each of the first transmission rod 31 and the second transmission rod 32, and a first reinforcing groove 41 matched with the first reinforcing disc 221 and a second reinforcing groove 42 matched with the second reinforcing disc 312 are formed in the gasket 4. Under the action of the second reinforcing disc 312, the connection stability between the first and second transmission rods 31 and 32 and the corresponding sealing gaskets 4 is increased; the stability of the connection between the gasket 4 and the cartridge 2 is increased by the first reinforcing disc 221. At this time, under the cooperation of the first reinforcing disc 221 and the second reinforcing disc 312, a support is provided for the sealing gasket 4, the blocking capability of the sealing gasket 4 to materials is improved, and the deformation of the sealing gasket 4 is reduced, so that the materials are not easy to pass through the materials and enter the driving assembly 3.
Referring to fig. 2 and 3, the driving assembly 3 includes a motor 33 and a gear box 34, the motor 33 and the gear box 34 are fixed on the base 1, an output end of the motor 33 extends into the gear box 34 and the gear box 34 operates, and the first transmission rod 31 and the second transmission rod 32 are rotatably connected to a side of the gear box 34 away from the motor 33.
The dispersing assembly 5 comprises a dispersing box 51 and a dispersing plate 52, wherein the dispersing box 51 is coaxially sleeved on the first transmission rod 31 and the second transmission rod 32 which are positioned in the charging barrel 2, and the first transmission rod 31 and the second transmission rod 32 are respectively and rotatably connected with the corresponding dispersing box 51. The dispersing plate 52 is slidably connected in the dispersing box 51 along the horizontal direction, and the dispersing plate 52 extends out of the dispersing box 51, and a plurality of dispersing columns 53 are fixed on one side of the dispersing plate 52 close to the sealing gasket 4.
Referring to fig. 2 and 4, a control mechanism 6 for controlling the dispersion plate 52 to reciprocate in the horizontal direction is provided in the dispersion box 51, and the control mechanism 6 includes a transmission assembly 61 and a control assembly 62. The first transmission rod 31 and the second transmission rod 32 are respectively provided with a group of transmission assemblies 61, one side of the control assembly 62 is connected with the transmission assemblies 61, and the other side is connected with the dispersing plate 52.
The control assembly 62 includes a control shaft 621, a first gear 622 and a second gear 623, the control shaft 621 is rotatably connected in the dispersion case 51 in the vertical direction, the first gear 622 and the second gear 623 are coaxially fixed on the control shaft 621, and the first gear 622 and the second gear 623 are oppositely disposed on the control shaft 621. The dispersing plate 52 is provided with a plurality of control rods 54 cooperating with the first gears 622 in the vertical direction.
Referring to fig. 2 and 4, the transmission assembly 61 includes a worm 611 and a worm wheel 612, the first transmission rod 31 and the second transmission rod 32 are coaxially provided with the worm 611, the worm wheel 612 is rotatably connected in the corresponding dispersing box 51, the worm wheel 612 is engaged with the corresponding worm 611, and the rotation axis of the worm wheel 612 is arranged in the horizontal direction. The worm gear 612 is provided with a rack 624 matching the first gear 622 and the second gear 623 on one side near the first gear 622 and the second gear 623, and the rack 624 is wound around the worm gear 612 by half turn along the circumferential direction of the worm gear 612.
When the first transmission rod 31 and the second transmission rod 32 rotate, the first transmission rod 31 and the second transmission rod 32 drive the corresponding worm 611 to rotate, the worm 611 drives the corresponding worm wheel 612 to rotate, and the worm wheel 612 rotates and drives the rack 624 to rotate. The rack 624 contacts with the first gear 622 and drives the first gear 622 to rotate forward, the first gear 622 contacts with each control rod 54 and drives the dispersing plates 52 to move towards the sealing gasket 4, and the dispersing plates 52 drive each dispersing column 53 to move towards the sealing gasket 4, so that materials at the sealing gasket 4 are dispersed, the possibility that the materials are accumulated at the sealing gasket 4 is reduced, and the sealing gasket 4 is not easy to be extruded, so that the possibility that the materials leak into the gear box 34 is reduced. When the rack 624 contacts with the second gear 623, the rack 624 drives the second gear 623 to rotate reversely, the second gear 623 then drives the control shaft 621 and the first gear 622 to rotate reversely, the first gear 622 contacts with each control rod 54, and the control rods 54 then drive the corresponding dispersing plates 52 to move in a direction away from the sealing gasket 4. When the rack 624 is again in contact with the first gear 622, the dispersion plate 52 continues to move towards the gasket 4, so that the dispersion plate 52 and the dispersion columns 53 continuously disperse the material near the gasket 4, thereby reducing the possibility that the gasket 4 is squeezed, and improving the stability of the device in operation.
Referring to fig. 2 and 4, in order to reduce the possibility of material accumulating at the gasket 4, a push plate 55 is fixed at one end of the dispersion plate 52 away from the dispersion column 53, and when the dispersion plate 52 reciprocates in the horizontal direction, the dispersion plate 52 drives the push plate 55 to reciprocate in the horizontal direction, and at this time, the push plate 55 pushes the material toward the position away from the gasket 4, so that the material is not easy to directly move to the gasket 4.
And be equipped with the guide surface 56 on the dispersion box 51, after the dispersion post 53 is to the material dispersion, the dispersion board 52 drives dispersion post 53 and moves towards the direction of keeping away from sealed pad 4, and partial material moves towards first screw rod 311 and second screw rod 321 under the direction effect of guide surface 56 this moment to the material volume of sealed pad 4 department has been reduced, the possibility that the material was piled up in sealed pad 4 department has further been reduced.
Referring to fig. 5, in order to further reduce the possibility that the material directly enters the gear box 34, a partition box 7 is communicated between the charging barrel 2 and the gear box 34, and under the action of the partition box 7, buffering is provided for the material, so that the possibility that the material enters the gear box 34 is further reduced, and the stability of the equipment in operation is further improved. And cut off the intercommunication under the case 7 and have observation box 71, the material that gets into in the cut off the case 7 drops to in the observation box 71 under self gravity effect, in this application embodiment, observation box 71 is made by plexiglass, and the operating personnel can comparatively directly perceivedly look over the material volume in the observation box 71 to the operating personnel changes sealed pad 4 in time.
Referring to fig. 5 and 6, the partition box 7 is provided with cleaning assemblies 8 for cleaning the first transmission rod 31, the second transmission rod 32 and the sealing gasket 4, and the first transmission rod 31 and the second transmission rod 32 correspond to a group of cleaning assemblies 8.
The cleaning assembly 8 comprises a hollow shaft 81 and an annular plate 82, wherein the hollow shaft 81 is sleeved outside the first transmission rod 31 and the second transmission rod 32, the hollow shaft 81 corresponding to the first transmission rod 31 is coaxially arranged with the first transmission rod 31, the hollow shaft 81 corresponding to the second transmission rod 32 is coaxially arranged with the second transmission rod 32, and the hollow shaft 81 is rotatably connected with the inner wall of the partition box 7. The annular plate 82 is coaxially fixed at one end of the hollow shaft 81 close to the charging barrel 2, and bristles 821 are arranged on one side of the annular plate 82 close to the corresponding first transmission rod 31 and second transmission rod 32 and one side close to the sealing gasket 4.
Referring to fig. 6 and 7, for convenience in controlling the hollow shaft 81, a trigger assembly 9 for controlling the rotation of the hollow shaft 81 is provided in the partition box 7. The trigger assembly 9 comprises a trigger post 91, a trigger rod 92 and a connecting gear 93, wherein the trigger post 91 is fixed in the partition box 7 along the horizontal direction, a trigger groove 911 is formed in one side, close to the charging barrel 2, of the trigger post 91 along the length direction of the trigger post, and the trigger rod 92 is slidably connected in the trigger groove 911. An electromagnet 94 is fixed at the bottom of the trigger groove 911, a first spring 95 is arranged in the trigger groove 911, one end of the first spring 95 is fixed with the electromagnet 94, and the other end is fixed with the trigger rod 92. The connecting gear 93 is rotatably connected to one end of the trigger rod 92 away from the trigger post 91, trigger gears 96 matched with the connecting gear 93 are coaxially fixed on the first transmission rod 31 and the second transmission rod 32, and an inner gear 97 matched with the connecting gear 93 is fixed on the inner wall of the hollow shaft 81. To improve the accuracy of the triggering with the magnet, an infrared sensor (not shown) is provided in the observation box 71, which cooperates with the electromagnet 94.
When the material level in the observation box 71 does not exceed the infrared sensor, the electromagnet 94 is in an on state and attracts the trigger lever 92, the first spring 95 is in a compressed state, and neither the internal gear 97 nor the trigger gear 96 is engaged with the connecting gear 93. When the height of the material in the observation box 71 exceeds the infrared sensor, the electromagnet 94 is turned off, the trigger lever 92 moves away from the trigger post 91 under the resilience of the first spring 95, and at this time, the trigger gear 96 and the internal gear 97 are both engaged with the connecting gear 93. The first transmission rod 31 and the second transmission rod 32 rotate and drive the corresponding trigger gear 96 to rotate, the trigger gear 96 drives the corresponding connecting gear 93 to rotate, and the connecting gear 93 drives the corresponding inner gear 97 to rotate. The inner gear 97 drives the corresponding hollow shaft 81 to rotate, the hollow shaft 81 drives the corresponding annular plate 82 to rotate, the annular plate 82 rotates and cleans the corresponding first transmission rod 31 and the corresponding first transmission rod 31, and meanwhile, the annular plate 82 cleans the sealing gasket 4 at the corresponding position, so that the phenomenon of material accumulation is not easy to occur at the sealing gasket 4 near one side of the partition box 7. The cleaned material falls into the observation box 71 under the action of gravity of the operator, so that the operator can judge whether the sealing gasket 4 needs to be replaced according to the material amount in the observation box 71.
Referring to fig. 1 and 8, in order to facilitate the stable entry of the material into the cartridge 2, a filter plate 23 is fixed in the hopper 21, and a plurality of filter holes 231 are formed in the filter plate 23. The hopper 21 is internally provided with a crushing assembly 24 for cleaning the filter holes 231, the crushing assembly 24 comprises a crushing plate 241 and a plurality of crushing columns 242, the crushing plate 241 is slidably connected in the hopper 21, one side of the crushing plate 241, which is close to the filter plate 23, is provided with a plurality of yielding grooves 243 along the length direction of the crushing plate 241, each yielding groove 243 corresponds to one crushing column 242, the crushing columns 242 are slidably connected with the inner walls of the corresponding yielding grooves 243, the yielding grooves 243 are internally provided with second springs 244, one ends of the second springs 244 are fixed with the bottoms of the yielding grooves 243, and the other ends of the second springs 244 are fixed with the crushing columns 242. The base 1 is provided with an air cylinder 245 matched with the infrared sensor, and the output end of the air cylinder 245 extends into the hopper 21 and is fixed with the crushing plate 241.
In the process that the operator puts the material into the feed cylinder 2 from the hopper 21, when the material passes through the filter plate 23, the filter holes 231 filter the material, and meanwhile, under the action of the gravity of the material, the filter holes 231 also play a role in dispersing the material, so that the material with larger volume is not easy to directly enter the feed cylinder 2, and the phenomenon of material accumulation in the feed cylinder 2 is further reduced. When the material accumulation height in the observation box 71 exceeds the infrared sensor, the air cylinder 245 is started to drive the crushing plate 241 to move, and when the crushing column 242 is contacted with the filter plate 23, the crushing column 242 is retracted into the yielding groove 243, and the second spring 244 is in a compressed state. When the crushing column 242 moves to be opposite to the filtering hole 231 at the corresponding position, under the action of the resilience force of the second spring 244, the crushing column 242 stretches into the filtering hole 231 at the corresponding position and the filtering hole 231 is cleaned, so that the filtering hole 231 is not easy to be blocked, the filtering hole 231 is used for filtering materials stably, and the materials entering the charging barrel 2 are not easy to be accumulated.
The implementation principle of the double-screw micro scale provided by the embodiment of the application is as follows: the operating personnel carries the material to the feed cylinder 2 through the hopper 21, drive assembly 3 starts and drives first transfer line 31 and second transfer line 32 rotation, first transfer line 31 drives first screw 311 rotation, second transfer line 32 drives second screw 321 rotation, first transfer line 31 and second transfer line 32 drive corresponding drive assembly 61 again starts, drive assembly 61 drives corresponding control assembly 62 and starts, control assembly 62 controls dispersion board 52 along horizontal direction reciprocating motion, each dispersion post 53 can be close to the material of sealed 4 department and disperse this moment, the possibility of extrusion sealed 4 after having reduced the material and pile up is difficult for the material gets into drive assembly 3 after passing sealed 4, so that drive assembly 3 operates more steadily, thereby stability when having improved equipment operation.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. A twin-screw micro balance, characterized in that: the automatic feeding device comprises a base (1), a charging barrel (2), a hopper (21) and a driving assembly (3), wherein the charging barrel (2) is arranged on the base (1), the hopper (21) is communicated with the charging barrel (2), the driving assembly (3) is arranged on the base (1), the driving assembly (3) is communicated with the charging barrel (2), a first transmission rod (31) and a second transmission rod (32) are rotationally connected on the driving assembly (3), the first transmission rod (31) extends into the charging barrel (2) and is coaxially connected with a first screw (311), the second transmission rod (32) extends into the charging barrel (2) and is coaxially connected with a second screw (321), sealing gaskets (4) are arranged at the communicating positions of the first transmission rod (31) and the second transmission rod (32) and the charging barrel (2), and dispersing assemblies (5) for dispersing and accumulating materials are arranged on the first transmission rod (31) and the second transmission rod (32) in the charging barrel (2);
the dispersing assembly (5) comprises a dispersing box (51) and a dispersing plate (52), wherein the dispersing box (51) is correspondingly sleeved on a first transmission rod (31) and a second transmission rod (32) in the charging barrel (2), the first transmission rod (31) and the second transmission rod (32) are rotationally connected with the corresponding dispersing boxes (51), the dispersing plate (52) is slidably connected in the dispersing boxes (51), the dispersing plate (52) extends out of the dispersing boxes (51), a plurality of dispersing columns (53) are arranged on one side, close to the sealing gasket (4), of the dispersing plate (52), and a control mechanism (6) for controlling the dispersing columns (53) to reciprocate along the horizontal direction is arranged in the dispersing boxes (51);
the driving assembly (3) is communicated with the charging barrel (2) through a partition box (7), and an observation box (71) is communicated with the bottom of the partition box (7);
the cleaning assembly (8) is arranged in the partition box (7), the cleaning assembly (8) comprises a hollow shaft (81) and an annular plate (82), the hollow shaft (81) is correspondingly sleeved on each of the first transmission rod (31) and the second transmission rod (32), the hollow shaft (81) is rotationally connected in the partition box (7), the annular plate (82) is coaxially arranged on the hollow shaft (81), the annular plate (82) is arranged on the outer sides of the corresponding first transmission rod (31) and the corresponding second transmission rod (32), bristles (821) are respectively arranged on one side, close to the corresponding first transmission rod (31) and the corresponding second transmission rod (32), of the annular plate (82) and one side, close to the sealing gasket (4), of the annular plate (82), and a trigger assembly (9) for controlling the hollow shaft (81) is arranged in the partition box (7);
the trigger assembly (9) comprises a trigger post (91), a trigger rod (92) and a connecting gear (93), wherein the trigger post (91) is arranged in a partition box (7), a trigger groove (911) is formed in the trigger post (91) along the length direction of the trigger post, the trigger rod (92) is slidably connected in the trigger groove (911), an electromagnet (94) is arranged in the trigger groove (911), a first spring (95) is arranged in the trigger groove (911), one end of the first spring (95) is connected with the trigger rod (92), the other end of the first spring is connected with the electromagnet (94), the connecting gear (93) is rotationally connected at one end, far away from the trigger post (91), of the trigger rod (92), an inner gear (97) is arranged on the inner wall of the hollow shaft (81), trigger gears (96) are coaxially arranged on the first transmission rod (31) and the second transmission rod (32), and the trigger gears (96) and the inner gear (97) are meshed with the connecting gear (93).
The control mechanism (6) comprises a transmission assembly (61) and a control assembly (62), wherein a group of transmission assemblies (61) are correspondingly arranged on the first transmission rod (31) and the second transmission rod (32), the control assembly (62) is arranged in the dispersing box (51), one side of the control assembly (62) is connected with the transmission assembly (61), and the other side of the control assembly (62) is connected with the dispersing plate (52);
the control assembly (62) comprises a control shaft (621), a first gear (622) and a second gear (623), the control shaft (621) is rotationally connected in the dispersing box (51) along the vertical direction, the first gear (622) and the second gear (623) are coaxially arranged on the control shaft (621), a plurality of control rods (54) matched with the first gear (622) are arranged on the dispersing plate (52), and the transmission assembly (61) is used for controlling the first gear (622) and the second gear (623) to rotate;
the transmission assembly (61) comprises a worm (611) and a worm wheel (612), wherein the worm (611) is coaxially arranged on the first transmission rod (31) and the second transmission rod (32), the worm wheel (612) is meshed with the worm (611), the worm wheel (612) is rotationally connected with the dispersing box (51), one side, close to the control shaft (621), of the worm wheel (612) is provided with a rack (624) matched with the first gear (622) and the second gear (623), and the rack (624) winds half of the worm wheel (612) along the circumferential direction of the worm wheel (612).
2. The twin screw microbalance of claim 1, wherein: one end of the dispersion plate (52) far away from the dispersion column (53) is connected with a push plate (55), and the dispersion box (51) is provided with a guide surface (56).
3. The twin screw microbalance of claim 1, wherein: the novel material cylinder is characterized in that a connecting hole (22) for clamping the sealing gasket (4) is formed in the material cylinder (2), a first reinforcing disc (221) is arranged on the inner wall of the connecting hole (22) along the circumferential direction of the connecting hole, a second reinforcing disc (312) is coaxially arranged on each of the first transmission rod (31) and the second transmission rod (32), and a first reinforcing groove (41) matched with the first reinforcing disc (221) and a second reinforcing groove (42) matched with the second reinforcing disc (312) are formed in the sealing gasket (4).
4. The twin screw microbalance of claim 1, wherein: a filter plate (23) is arranged in the hopper (21), and a plurality of filter holes (231) are uniformly formed in the filter plate (23).
5. The twin screw microbalance of claim 4, wherein: be equipped with in hopper (21) and be used for clearing up crushing subassembly (24) of filtration pore (231), crushing subassembly (24) are including crushing board (241) and a plurality of broken post (242), crushing board (241) sliding connection is in hopper (21), a plurality of grooves of stepping down (243) have been seted up to one side that crushing board (241) is close to the filter screen, equal sliding connection is a broken post (242) in each groove of stepping down (243), each all be equipped with second spring (244) in groove of stepping down (243), one end of second spring (244) is connected with broken post (242) that correspond, and the other end is connected with the tank bottom of groove of stepping down (243), each broken post (242) all corresponds a filtration pore (231).
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| CN202310154720.2A CN116295751B (en) | 2023-02-22 | 2023-02-22 | Double-screw micro-scale |
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| CN202310154720.2A CN116295751B (en) | 2023-02-22 | 2023-02-22 | Double-screw micro-scale |
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