CN217807535U

CN217807535U - Automatic weighing equipment applied to mixture

Info

Publication number: CN217807535U
Application number: CN202222322525.XU
Authority: CN
Inventors: 俞列民; 俞凌杰; 何星锋; 刘乐一; 董晓佳; 马卫飞
Original assignee: Hangzhou Fuchunjiang Electrical Appliance Factory
Current assignee: Hangzhou Fuchunjiang Electrical Appliance Factory
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-11-15
Anticipated expiration: 2032-09-01

Abstract

The utility model discloses an automatic weighing device applied to mixed materials, which comprises a fixed frame, a weighing device and a truss trolley which are arranged on the fixed frame, and a storehouse frame connected with the truss trolley; the weighing device comprises a bin, a weighing hopper and a feeder which are sequentially arranged on the fixed frame; the device is characterized by also comprising a prepressing mechanism, a dust removing structure and a material homogenizing adjusting component which are arranged on the fixed frame; the prepressing mechanism comprises a prepressing driving component and a prepressing plate component connected with the prepressing driving component; the feeder is connected with the refining adjusting component; the truss trolley is provided with a flattening mechanism; and the storehouse frame is provided with an automatic lifting tool. The utility model discloses an utilize pre-compaction structure to carry out the pre-compaction to the material that falls to in the magazine respectively to prevent that multilayer material from mixing, improve the uniformity of material; the dust generated in the blanking process is adsorbed by the dust removing structure, so that the cleanness of the air in the production environment is ensured.

Description

Automatic weighing equipment applied to mixture

Technical Field

The utility model relates to a mixture technical field that weighs specifically indicates an automatic weighing equipment for mixture.

Background

At present, various mixed materials of fiber, small particles, powder and the like need the processes of weighing, subpackaging, feeding and the like when in compression molding; and weigh among the prior art, material after the compounding is shakeout does not have the pre-compaction after, therefore the material still is in loose state, so the material in later stage of being not convenient for is carried and influence the uniformity of product and also be not convenient for carry out the mould pressing simultaneously, and only fix the blanking that carries on in a department of magazine when the blanking, cause the material to pile up in a department easily, reduce the effect of shakeout, and produce the dust easily at the in-process of blanking, cause the pollution to the air, and then influence workman's health, and do not have corresponding automatic lifting device on the current storehouse frame, truss dolly and the manipulator that draws the magazine can have the state of interference when using admittedly, need dodge the use, thereby the efficiency of use has been reduced. To this end, an automatic weighing device for mixtures is proposed.

Disclosure of Invention

The utility model aims at solving the above problems and providing an automatic weighing device applied to mixed materials.

In order to achieve the above purpose, the utility model provides a following technical scheme: an automatic weighing device applied to mixed materials comprises a fixed frame, a weighing device and a truss trolley which are arranged on the fixed frame, and a storage rack connected with the truss trolley; the weighing device comprises a bin, a weighing hopper and a feeder which are sequentially arranged on a fixed frame; the device is characterized by also comprising a prepressing mechanism, a dust removing structure and a spreading adjusting component which are arranged on the fixed frame; the prepressing mechanism comprises a prepressing driving component and a prepressing plate component connected with the prepressing driving component; the feeder is connected with the spreading adjusting component; the truss trolley is provided with a flattening mechanism; and an automatic lifting tool is installed on the warehouse rack.

Preferably, a baffle plate is movably arranged on the weighing hopper; a plurality of first air cylinders are arranged on the fixed frame corresponding to the baffle, and weighing sensors are arranged on the fixed frame corresponding to the weighing hoppers; the dust removal structure comprises a dust remover which is arranged on the fixed frame and corresponds to the weighing hopper, and is arranged on the feeder, and a dust removal channel which is connected with the weighing hopper and the feeder.

Preferably, the dust removing channel is provided with a material through hole and a plurality of dust suction holes arranged around the material through hole; the dust removal channel is mounted on the fixed frame through a screw; and a blanking scraper is also arranged on the dust removal channel.

Preferably, the feeder comprises a fixed plate, a plurality of discharging bins arranged on the fixed plate and a lower fixed plate arranged on the discharging bins; the feeder is arranged on the spreading adjusting component; the spreading adjusting assembly comprises a transverse guide rail and a rack which are arranged on the fixed frame, and a first motor arranged on the fixed plate; a gear meshed with the rack is arranged on the first motor; and the fixed plate is also provided with a transverse sliding block matched with the transverse guide rail.

Preferably, the lower fixing plate is further provided with a second motor and a second cylinder; a rotating shaft is arranged on the second motor; the rotating shaft is provided with a plurality of refining gears and is arranged in the discharging bin; and the second cylinder is connected with a discharging drawing plate.

Preferably, the pre-pressing driving assembly comprises a driving motor installed on the fixed frame, a driving screw rod installed on the driving motor, and a driving nut seat installed on the driving screw rod; the prepressing plate assembly comprises a prepressing support arranged on the driving nut seat, an electromagnet arranged on the prepressing support and a material prepressing plate arranged on the electromagnet.

Preferably, the truss trolley comprises a truss arranged on the fixed frame and a sliding seat which can be slidably arranged on the truss; the flattening mechanism is arranged on the sliding seat; the sliding seat is also provided with a third motor and a sliding block; a third gear is arranged on the third motor; and the fixed frame is provided with a guide rail matched with the sliding block and a third rack meshed with a third gear.

Preferably, the flattening mechanism comprises a fourth motor installed on the sliding seat, an eccentric cam and a bearing installed on the fourth motor, and a positioning plate slidably installed on the sliding seat; the positioning plate is provided with a flattening limiting block, a plurality of fourth sliding blocks and a positioning shaft; and a fourth guide rail matched with the fourth sliding block is arranged on the sliding seat.

Preferably, the automatic lifting tool comprises a fifth motor, a driven wheel, a speed reducer, a transmission shaft, a driving wheel, a transmission belt and a lifting plate, wherein the fifth motor is arranged on the warehouse rack; a plurality of fifth cylinders are mounted on the lifting plate; and a lifting rod is arranged on the fifth cylinder.

Preferably, the warehouse rack is also provided with a plurality of sixth cylinders, longitudinal guide rails and sixth guide rails; the sixth air cylinders are connected with storage plates; a sixth sliding block matched with the sixth guide rail is arranged on the storage plate; the lifting plate is provided with a longitudinal sliding block matched with the longitudinal guide rail; all be equipped with a plurality of on depositing the board and promoting the board and place the reference column.

The utility model has the advantages that: the weighed materials are uniformly paved into the material box by using the feeder and the paving material adjusting assembly, and the materials respectively falling into the material box are paved and pre-pressed by using the flattening mechanism and the pre-pressing structure, so that the mixing of multiple layers of materials is prevented, and the consistency of the materials is improved;

dust generated during blanking is adsorbed by the dust removing structure, so that the cleanness of air in the production environment is ensured;

the lower material bin is driven to move by the paving adjusting assembly, and the material box is driven to move by the flattening mechanism, so that the flatness of materials in the material box can be conveniently controlled, and multiple materials are prevented from being mixed;

the material box filled with the materials is automatically stored on the storage rack by utilizing the automatic lifting tool, so that the labor intensity of workers is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a partial structure of the present invention.

Fig. 3 is a schematic structural view of the dust removal channel of the present invention.

Fig. 4 is a schematic view of the structure of the feeder of the present invention.

Fig. 5 is a schematic view of a partial structure of the present invention.

Fig. 6 is a schematic structural diagram of the pre-pressing mechanism of the present invention.

Fig. 7 is a schematic structural diagram of the truss trolley of the present invention.

Fig. 8 is a schematic view of a partial structure of the truss carriage of the present invention.

Fig. 9 is a schematic structural view of the warehouse rack of the present invention.

Fig. 10 is a partially enlarged view of a portion a in fig. 9 of the present application.

Fig. 11 is a plan view of the rack of the present invention.

Illustration of the drawings: 1 fixing a frame; 2, a material weighing device; 201 stock bin; 202 weighing hopper; 203 a feeder; 204 baffle plates; 205 a first cylinder; 206 a load cell; 207 fixing the plate; 208 discharging the storage bin; 209 lower fixing plate; 210 a second motor; 211 a second cylinder; 212 a rotating shaft; 213 a refining gear; 214, blanking and drawing a plate; 3, a truss trolley; 301 a truss; 302 a sliding seat; 303 a third motor; 304 slide blocks; 305 a third gear; 306 a guide rail; 307 a third rack; 4, storage racks; 401 a sixth cylinder; 402 a longitudinal rail; 403 a sixth guide rail; 404 a storage plate; 405 a sixth slider; 5, a prepressing mechanism; 501 pre-pressing a driving component; 502 pre-pressing the plate assembly; 503 driving a motor; 504 a drive screw; 505 driving the nut seat; 506 pre-pressing the bracket; 507 an electromagnet; 508 material pre-pressing plate; 6, a dust removal structure; 601 a dust remover; 602 a dust removal channel; 603, feeding a material port; 604 a dust suction port; 605 blanking scraper; 7, a spreading adjusting component; 701 transverse guide rails; 702 a rack; 703 a first motor; 704 gear wheel; 705 a transverse slide; 8, a flattening mechanism; 801 a fourth motor; 802 an eccentric cam; 803 a bearing; 804, positioning a plate; 805 flattening the limiting block; 806 a fourth slider; 807 positioning the shaft; 808 a fourth guide rail; 9, automatically lifting the tool; 901 a fifth motor; 902 a driven wheel; 903 a speed reducer; 904 a propeller shaft; 905 a driving wheel; 906 a drive belt; 907 a lifting plate; 908 a fifth cylinder; 909 a lift bar; 910 a longitudinal slide; 911 placing a positioning column.

Detailed Description

Below we combine the attached drawings to the utility model, an automatic weighing device for mixture. For further explanation.

Referring to fig. 1-9, the automatic weighing apparatus for mixed materials in this embodiment includes a fixed frame 1, a weighing device 2 and a truss trolley 3 mounted on the fixed frame 1, and a storage rack 4 connected to the truss trolley 3; the weighing device 2 comprises a bin 201, a weighing hopper 202 and a feeder 203 which are sequentially arranged on the fixed frame 1; the device is characterized in that the weighing device 2 also comprises a prepressing mechanism 5, a dust removing structure 6 and a spreading adjusting component 7 which are arranged on the fixed frame 1; the pre-pressing mechanism 5 comprises a pre-pressing driving assembly 501 and a pre-pressing plate assembly 502 connected with the pre-pressing driving assembly 501; the feeder 203 is connected with the spreading adjusting component 7; the truss 301 trolley 3 is provided with a flattening mechanism 8; an automatic lifting tool 9 is arranged on the warehouse rack 4; materials falling into the material box respectively are pre-pressed by the pre-pressing mechanism 5, so that multiple layers of materials are prevented from being mixed, and the consistency of the materials is improved; dust generated during blanking is adsorbed by the dust removing structure 6, so that the cleanness of air in the production environment is ensured; the lower material bin 208 is driven to move by the paving material adjusting component 7, and the material box is driven to move by the flattening mechanism 8, so that the flatness of materials in the material box can be conveniently controlled, and multiple materials are prevented from being mixed; the material box filled with materials is automatically stored on the storage rack 4 by utilizing the automatic lifting tool 9, so that the labor intensity of workers is reduced.

Referring to fig. 1-3, a baffle 204 is movably mounted on the weighing hopper 202 through a pin; a plurality of first air cylinders 205 are arranged on the fixed frame 1 corresponding to the baffle 204, and weighing sensors 206 are arranged on the fixed frame 1 corresponding to the weighing hoppers 202; through the weight of weighing sensor 206 response material, when the material reachd appointed weight, first cylinder 205 promoted baffle 204 and rotates, will weigh the material in the fill 202 and fall onto the feeder 203 to be convenient for automatic weighing.

2-3, the dust removing structure 6 comprises a dust remover 601 which is arranged on the fixed frame 1 and corresponds to the weighing hopper 202 and is arranged on the feeder 203, and a dust removing channel 602 which connects the weighing hopper 202 and the feeder 203; a material through opening 603 and a plurality of dust suction openings 604 arranged around the material through opening 603 are arranged on the dust removing channel 602; the dust removing channel 602 is mounted on the fixing frame 1 through screws; a blanking scraper 605 is also arranged on the dust removing channel 602; dust generated during blanking is sucked by the dust collector 601 and the dust suction port 604 on the dust collection channel 602, so that the dust is prevented from floating in the air, and the cleanness of the air is ensured; the waste of the material is prevented by scraping the large material into the lower hopper 208 by the lower scraper 605.

Referring to fig. 4-5, the feeder 203 comprises a fixed plate 207, a plurality of lower silos 208 mounted on the fixed plate 207, and a lower fixed plate 701 mounted on the lower silos 208; the feeder 203 is arranged on the spreading adjusting component 7; the paving adjusting assembly 7 comprises a transverse guide rail 701 and a rack 702 which are arranged on the fixed frame 1, and a first motor 703 which is arranged on the fixed plate 207; a gear 704 meshed with the rack 702 is mounted on the first motor 703; a transverse sliding block 705 matched with the transverse guide rail 701 is further installed on the fixing plate 207; the lower fixing plate 701 is also provided with a second motor 210 and a second cylinder 211; a rotating shaft 212 is installed on the second motor 210; the rotating shaft 212 is arranged on a plurality of discharging gears 213 and is arranged in the lower bin 208; the second cylinder 211 is connected with a discharging drawing plate 214; the truss trolley 3 comprises a truss 301 arranged on the fixed frame 1 and a sliding seat 302 which can be slidably arranged on the truss 301; the flattening mechanism 8 is arranged on the sliding seat 302; the sliding seat 302 is also provided with a third motor 303 and a sliding block 304; a third gear 305 is mounted on the third motor 303; a guide rail 306 matched with the sliding block 304 and a third rack 307 meshed with a third gear 305 are arranged on the fixed frame 1; the second cylinder 211 pushes the discharging drawing plate 214 to move, the discharging bin 208 is opened, meanwhile, the second motor 210 drives the rotating shaft 212 to rotate, the rotating shaft 212 drives the refining gear 213 to rotate to control the uniform discharge of materials in the discharging bin 208, the first motor 703 drives the gear 704 to rotate, the gear 704 rotates and moves along the rack 702 to drive the discharging bin 208 to move along the transverse guide rail 306, meanwhile, the third motor 303 drives the third gear 305 to rotate, the third gear 305 moves along the third rack 307 to drive the sliding seat 302 to move left and right, the sliding seat 302 drives the material box to move left and right at the discharging bin 208, and a cross structure is formed in the moving direction of the discharging bin 208, so that the materials are uniformly dropped into the material box, and the flatness of the materials in the material box is controlled.

Referring to fig. 6, the pre-pressing driving assembly 501 includes a driving motor 503 mounted on the fixed frame 1, a driving screw 504 mounted on the driving motor 503, and a driving nut seat 505 mounted on the driving screw 504; the prepressing plate assembly 502 comprises a prepressing bracket 506 arranged on a driving nut seat 505, an electromagnet 507 arranged on the prepressing bracket 506 and a material prepressing plate 508 arranged on the electromagnet 507; the driving motor 503 drives the driving screw 504 to rotate, the driving screw 504 drives the driving nut seat 505 to move, the driving nut seat 505 drives the pre-pressing support 506 to move, the pre-pressing support 506 drives the electromagnet 507 and the material pre-pressing plate 508 mounted on the electromagnet 507 to move to pre-press each material in the material box, so that multiple materials are prevented from being mixed, and the consistency of the materials is improved.

Referring to fig. 7-8, the third gear 305 is rotated by the third motor 303, and the third gear 305 moves along the third rack 307 and drives the sliding seat 302 to slide along the guide rail 306 for conveying the material, so as to facilitate the conveying of the material.

Referring to fig. 6-7, the flattening mechanism 8 includes a fourth motor 801 mounted on the sliding base 302, an eccentric cam 802 and a bearing 803 mounted on the fourth motor 801, and a positioning plate 804 slidably mounted on the sliding base 302; a flattening limiting block 805, a plurality of fourth sliding blocks 806 and a positioning shaft 807 are arranged on the positioning plate 804; a fourth guide rail 808 matched with the fourth sliding block 806 is arranged on the sliding seat 302; the fourth motor 801 drives the eccentric cam 802 to rotate, the eccentric cam 802 drives the flattening limiting block 805 to move, and the flattening limiting block 805 drives the positioning plate 804 to reciprocate along the fourth guide rail 808 to flatten materials in the material box, so that the flatness of the materials in the material box is ensured.

Referring to fig. 9 to 11, the automatic lifting tool 9 includes a fifth motor 901 mounted on the storage rack 4, a driven wheel 902, a speed reducer 903 connected to the fifth motor 901, a transmission shaft 904 mounted on the speed reducer 903, a driving wheel 905 mounted on the transmission shaft 904, a transmission belt 906 mounted between the driving wheel 905 and the driven wheel 902, and a lifting plate 907 mounted on the transmission belt 906; a plurality of fifth air cylinders 908 are arranged on the lifting plate 907; a lifting rod 909 is mounted on the fifth cylinder 908; the warehouse rack 4 is also provided with a plurality of sixth air cylinders 401, a longitudinal guide rail 402 and a sixth guide rail 403; the sixth cylinders 401 are all connected with a storage plate 404; a sixth sliding block 405 matched with the sixth guide rail 403 is installed on the storage plate 404; the lifting plate 907 is provided with a longitudinal sliding block 910 matched with the longitudinal guide rail 402; a plurality of positioning posts 911 are arranged on the storage plate 404 and the lifting plate 907; the fifth motor 901 drives the transmission shaft 904 to rotate through the speed reducer 903, the transmission shaft 904 drives the driving wheel 905 to rotate, the driving wheel 905 drives the transmission belt 906 to move, the transmission belt 906 drives the driven wheel 902 to rotate, and meanwhile, the lifting plate 907 is driven to move along the longitudinal guide rail 402, so that the lifting of materials is facilitated; the sixth cylinder 401 drives the storage plate 404 to move along the sixth guide rail 403, and the materials are stored and taken.

The working process of the utility model, at first, the sixth cylinder 401 drives the storage plate 404 and the material box placed above the storage plate 404 moves outward along the sixth guide rail 403, then the fifth cylinder 908 drives the lifting rod 909 to move, the material box is lifted from the storage plate 404, at the same time, the sixth cylinder 401 drives the storage plate 404 to move back, then the fifth motor 901 drives the transmission shaft 904 to rotate through the speed reducer 903, the transmission shaft 904 drives the driving wheel 905 to rotate, the driving wheel 905 drives the transmission belt 906 to move, the transmission belt 906 drives the driven wheel 902 to rotate, simultaneously the lifting plate 907 and the material box placed on the lifting plate 907 move downward along the longitudinal guide rail 402 until the material box is conveyed to the upper part of the positioning plate 804, then the fifth cylinder 908 drives the lifting rod 909 to move, the material box is placed on the positioning plate 804, and the material box is positioned on the positioning plate 804 through the positioning shaft 807, then the third motor 303 of the truss trolley 3 drives the third gear 305 to rotate, the third gear 305 moves along a third rack 307 and drives the sliding seat 302 to slide along the guide rail 306 to send the material box to the discharging bin 208, the material enters the weighing hopper 202 from the bin 201, the weight of the material is sensed by the weighing sensor 206, when the material reaches the set weight, the first cylinder 205 pushes the baffle 204 to rotate, the weighing hopper 202 is opened, the material enters the discharging bin 208 from the weighing hopper 202 through the material passing opening 603 on the dust removing channel 602, then the second cylinder 211 pushes the discharging pumping plate 214 to move, the discharging bin 208 is opened, meanwhile, the second motor 210 drives the rotating shaft 212 to rotate, the rotating shaft 212 drives the discharging gear 213 to rotate to control the material in the discharging bin 208 to be discharged at a constant speed, the first motor 703 drives the gear 704 to rotate, and the gear 704 rotates and moves along the rack 702, thereby driving the lower bin 208 to move along the transverse guide rail 306, the materials are uniformly dropped into the material box, meanwhile, the truss trolley 3 drives the material box to move left and right under the lower bin 208 in an upper-continuous mode, after the material is discharged, the fourth motor 801 drives the eccentric cam 802 to rotate, the eccentric cam 802 drives the flattening limiting block 805 to move, the flattening limiting block 805 drives the positioning plate 804 to reciprocate along the fourth guide rail 808 to control the flatness of the materials in the material box, in the discharging process, the dust suction port 604 on the dust removal channel 602 and the dust collectors 601 at the weighing hopper 202 and the lower bin 208 suck the dust generated by the material discharge, then the truss trolley 3 moves the material box to the pre-pressing mechanism 5 in an upper-continuous mode, the driving motor 503 drives the driving screw rod 504 to rotate, the driving screw rod 504 drives the driving nut seat 505 to move, the driving nut seat 505 drives the pre-pressing support 506 to move, the prepressing bracket 506 drives the electromagnet 507 and the material prepressing plate 508 arranged on the electromagnet 507 to move downwards to prepress the material in the material box, after the prepressing is completed, the truss trolley 3 moves the material box to the other lower material bin 208 to receive another material according to the above method, after the material receiving is completed, the prepressing mechanism 5 is required to be used for prepressing each time after the material receiving is completed, the truss trolley 3 moves the material box to the storage rack 4, the fifth motor 901 drives the transmission shaft 904 to rotate through the speed reducer 903, the transmission shaft 904 drives the driving wheel 905 to rotate, the driving wheel 905 drives the transmission belt 906 to move, the transmission belt 906 drives the driven wheel 902 to rotate, simultaneously drives the lifting plate 907 to move downwards along the longitudinal guide rail 402, positioning columns arranged on the lifting plate 907 are arranged in positioning holes on the material box, and then the fifth cylinder 908 drives the lifting rod 909 to move, the magazine is lifted from the positioning plate 804, the truss trolley 3 moves back, the magazine is lifted to the placing height through the lifting plate 907 in the continuous mode after being installed, the sixth cylinder 401 drives the storage plate 404 to move outwards to the bottom of the magazine along the sixth guide rail 403, then the fifth cylinder 908 drives the lifting rod 909 to move to place the magazine on the storage plate 404, and then the sixth cylinder 401 drives the storage plate 404 to move back along the sixth guide rail 403 to store the magazine.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. An automatic weighing device applied to mixed materials comprises a fixed frame (1), a weighing device (2) and a truss trolley (3) which are arranged on the fixed frame (1), and a storage rack (4) connected with the truss trolley (3); the weighing device (2) comprises a bin (201), a weighing hopper (202) and a feeder (203) which are sequentially arranged on the fixed frame (1); the automatic material weighing device is characterized in that the material weighing device (2) further comprises a pre-pressing mechanism (5), a dust removing structure (6) and a material spreading adjusting component (7) which are arranged on the fixed frame (1); the prepressing mechanism (5) comprises a prepressing driving assembly (501) and a prepressing plate assembly (502) connected with the prepressing driving assembly (501); the feeder (203) is connected with the spreading adjusting component (7); the truss trolley (3) is provided with a flattening mechanism (8); and an automatic lifting tool (9) is installed on the storage rack (4).

2. The automatic weighing apparatus for mix of claim 1, wherein: a baffle (204) is movably arranged on the weighing hopper (202); a plurality of first air cylinders (205) are arranged on the fixed frame (1) corresponding to the baffle (204), and weighing sensors (206) are arranged on the fixed frame corresponding to the weighing hoppers (202); the dust removing structure (6) comprises a dust remover (601) which is arranged on the fixed frame (1) and corresponds to the weighing hopper (202) and is arranged on the feeder (203), and a dust removing channel (602) which is connected with the weighing hopper (202) and the feeder (203).

3. The automatic weighing apparatus for mix as claimed in claim 2, wherein: the dust removing channel (602) is provided with a material passing hole (603) and a plurality of dust collecting holes (604) arranged around the material passing hole (603); the dust removal channel (602) is mounted on the fixed frame (1) through a screw; and a blanking scraper (605) is also arranged on the dust removal channel (602).

4. The automatic weighing apparatus for mix of claim 1, wherein: the feeder (203) comprises a fixing plate (207), a plurality of discharging bins (208) arranged on the fixing plate (207) and a lower fixing plate (209) arranged on the discharging bins (208); the feeder (203) is arranged on the spreading adjusting component (7); the spreading adjusting assembly (7) comprises a transverse guide rail (701) and a rack (702) which are arranged on the fixed frame (1) and a first motor (703) which is arranged on the fixed plate (207); a gear (704) meshed with the rack (702) is arranged on the first motor (703); and a transverse sliding block (705) matched with the transverse guide rail (701) is further installed on the fixing plate (207).

5. The automatic weighing apparatus applied to mix of claim 4, wherein: the lower fixing plate (209) is also provided with a second motor (210) and a second cylinder (211); a rotating shaft (212) is arranged on the second motor (210); the rotating shaft (212) is arranged on a plurality of discharging gears (213) and is arranged in the discharging bin (208); the second cylinder (211) is connected with a blanking drawing plate (214).

6. The automatic weighing apparatus for mix of claim 1, wherein: the prepressing driving assembly (501) comprises a driving motor (503) arranged on the fixed frame (1), a driving screw rod (504) arranged on the driving motor (503) and a driving nut seat (505) arranged on the driving screw rod (504); the prepressing plate assembly (502) comprises a prepressing bracket (506) arranged on a driving nut seat (505), an electromagnet (507) arranged on the prepressing bracket (506) and a material prepressing plate (508) arranged on the electromagnet (507).

7. The automatic weighing apparatus for mix of claim 1, wherein: the truss trolley (3) comprises a truss (301) arranged on the fixed frame (1) and a sliding seat (302) which can be slidably arranged on the truss (301); the flattening mechanism (8) is arranged on the sliding seat (302); the sliding seat (302) is also provided with a third motor (303) and a sliding block (304); a third gear (305) is arranged on the third motor (303); and a guide rail (306) matched with the sliding block (304) and a third rack (307) meshed with a third gear (305) are arranged on the fixed frame (1).

8. The automatic weighing apparatus for mix of claim 7, wherein: the flattening mechanism (8) comprises a fourth motor (801) arranged on the sliding seat (302), an eccentric cam (802) and a bearing (803) arranged on the fourth motor (801), and a positioning plate (804) which can be slidably arranged on the sliding seat (302); a flattening limiting block (805), a plurality of fourth sliding blocks (806) and a positioning shaft (807) are arranged on the positioning plate (804); and a fourth guide rail (808) matched with the fourth sliding block (806) is arranged on the sliding seat (302).

9. The automatic weighing apparatus for mix of claim 1, wherein: the automatic lifting tool (9) comprises a fifth motor (901) arranged on the warehouse rack (4), a driven wheel (902), a speed reducer (903) connected with the fifth motor (901), a transmission shaft (904) arranged on the speed reducer (903), a driving wheel (905) arranged on the transmission shaft (904), a transmission belt (906) arranged between the driving wheel (905) and the driven wheel (902) and a lifting plate (907) arranged on the transmission belt (906); a plurality of fifth air cylinders (908) are arranged on the lifting plate (907); and a lifting rod (909) is arranged on the fifth cylinder (908).

10. The automatic weighing apparatus for mix as claimed in claim 9, wherein: the warehouse rack (4) is also provided with a plurality of sixth cylinders (401), longitudinal guide rails (402) and sixth guide rails (403); the sixth cylinders (401) are connected with storage plates (404); a sixth sliding block (405) matched with the sixth guide rail (403) is mounted on the storage plate (404); the lifting plate (907) is provided with a longitudinal sliding block (910) matched with the longitudinal guide rail (402); and a plurality of positioning columns (911) are arranged on the storage plate (404) and the lifting plate (907).