CN217866137U - Proportioning bins and proportioning machine with same - Google Patents

Abstract

The utility model relates to a proportioning bins and have proportioning machine of this proportioning bins, it includes the storehouse body, the storehouse body includes storage silo and discharging pipe, and the discharging pipe of locating is located the lower extreme of storage silo, the discharging pipe with the storage silo intercommunication, the discharging pipe is kept away from the discharge gate has been seted up to the one end of storage silo, be provided with on the discharging pipe and be used for blockking the piece of the discharging pipe ejection of compact, it includes the first pneumatic cylinder that the barrier plate and be used for driving the barrier plate to slide to block the piece, the terminal surface of barrier plate with the terminal surface laminating of storage silo is kept away from to the discharging pipe, the barrier plate slide connect in on the terminal surface of storage silo is kept away from to the discharging pipe, first pneumatic cylinder set up in on the organism, the barrier plate set up in on the piston rod of first pneumatic cylinder. This application has the material ejection of compact of proportioning bins of being convenient for, reduces the effect of the damage of proportioning bins discharging pipe driving piece.

Description

Proportioning bins and have proportioning machine of this proportioning bins

Technical Field

The utility model belongs to the technical field of proportioning bins and specifically relates to a proportioning bin and have proportioning machine of this proportioning bin.

Background

The proportioning bin is a container for storing materials, a weighing bin is arranged at the rear end of the proportioning bin, the equipment is provided with weighing equipment, and functions of proportioning, weighing, conveying and the like can be completed by matching with a special instrument.

The application publication number is CN 210456404U's chinese utility model discloses a concrete storehouse of weighing, which comprises a frame, the storehouse of weighing of setting in the frame, the storehouse of weighing is including the weighing fill of setting in the frame, the discharge conduit of setting on weighing fill under shed end, one side that the discharge conduit kept away from weighing fill is provided with the discharge door, be provided with the device that opens and shuts of control discharge door on the discharge conduit, the discharge door sets up the device that opens and shuts, the device that opens and shuts includes first gear, second gear and discharge motor, the first gear of the actuating lever fixedly connected with of discharge door, first gear and second gear meshing, the output shaft of discharge motor is fixed to be set up in the second gear, discharge motor drives the rotation of second gear, the rotation of second gear drives first gear and rotates, first gear drives actuating lever and discharge door and rotates together, the utility model has the effect of controlling the opening and shutting of discharge door through the motor.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the discharge door of ejection of compact pipeline is easy because of the material is overweight for the moment of torsion of discharge door is too big, leads to ejection of compact motor atress too big, leads to ejection of compact motor to damage easily.

SUMMERY OF THE UTILITY MODEL

In order to reduce the damage of proportioning bins discharging pipe driving piece, this application provides a proportioning bins and proportioning machine thereof.

First aspect, the application provides a proportioning bins adopts following technical scheme:

the utility model provides a proportioning bins, includes the storehouse body, the storehouse body includes storage silo and discharging pipe, and the discharging pipe of locating is located the lower extreme of storage silo, the discharging pipe with the storage silo intercommunication, the discharging pipe is kept away from the one end of storage silo has been seted up the discharge gate, be provided with on the discharging pipe and be used for blockking the piece of the discharging pipe ejection of compact, it includes the barrier plate and is used for driving the first pneumatic cylinder that the barrier plate slided to block the piece, the terminal surface of barrier plate with the discharging pipe is kept away from the terminal surface laminating of storage silo, the barrier plate slide connect in the discharging pipe is kept away from on the terminal surface of storage silo, first pneumatic cylinder set up in on the discharging pipe, the barrier plate set up in on the piston rod of first pneumatic cylinder.

By adopting the technical scheme, the discharge pipe is connected with the blocking plate in a sliding manner, and the blocking plate controls the movement of the blocking plate through the first hydraulic cylinder; when the material storage bin needs to discharge materials, the first hydraulic cylinder contracts the piston rod, the stop plate stopped on the discharge pipe is moved out of the position where the stop plate blocks the discharge pipe, the materials can be discharged from the discharge pipe of the proportioning bin, and when the proportioning bin needs to close the discharge pipe, the first hydraulic cylinder extends the piston rod to stop the stop plate at the discharge pipe; through the ejection of compact of first pneumatic cylinder control proportioning bins, reduce because of the material is overweight, and lead to first pneumatic cylinder to damage.

Optionally, the stop plate is provided with a pulley in a rotating manner, the axis direction of the pulley is perpendicular to the sliding direction of the stop plate, the discharging pipe is provided with a sliding groove for sliding the pulley, and the length direction of the sliding groove extends along the sliding direction of the stop plate.

By adopting the technical scheme, the pulley is arranged on the blocking plate and is connected in the sliding chute in a sliding manner; in the movement of the hydraulic cylinder driving blocking plate, sliding friction is changed into rolling friction, so that the driving force required by the first hydraulic cylinder can be reduced, and the load of the hydraulic cylinder is reduced; the pulley rolls in the chute to provide supporting force for the stop plate to abut against the end face of the discharge pipe.

Optionally, be provided with the connecting device who is used for connecting the barrier plate on the first pneumatic cylinder, connecting device includes fixture block, connecting rod and rotation cover, the fixture block sets up in the one end of first pneumatic cylinder piston rod, the connecting rod set up in the barrier plate is close to one of first pneumatic cylinder is served, the length direction of connecting rod with the direction of motion of barrier plate is parallel, seted up on the connecting rod with fixture block joint complex draw-in groove, the axis of rotating the cover with the length direction of connecting rod is parallel, it rotates to overlap one end and connects on the piston rod of first pneumatic cylinder to rotate, it connects in to rotate cover other end threaded connection on the connecting rod.

By adopting the technical scheme, when the blocking plate is impacted by materials after being used for a long time, the blocking plate is sunk and needs to be replaced in time, at the moment, the rotating sleeve in the connecting device is rotated, the old blocking plate which is in threaded connection with the rotating sleeve is separated, the connecting rod is firstly abutted against the rotating sleeve when a new blocking plate is installed, the connecting rod is in threaded connection when the rotating sleeve is rotated, and when the threaded connection is in place, the clamping block on the connecting rod is matched with the clamping groove of the piston rod of the first hydraulic cylinder; the barrier plate can be conveniently replaced only by rotating the rotating sleeve, and the replacement efficiency is improved.

Optionally, be provided with the drive on the first pneumatic cylinder and rotate cover pivoted slewing mechanism, slewing mechanism includes outer ring gear, mounting bracket, gear and motor, outer ring gear set up in rotate and sheathe in, the axis of outer ring gear with the axis direction that rotates the cover is parallel, the mounting bracket set up in on the piston rod of first pneumatic cylinder, the motor set up in on the mounting bracket, the length direction of motor with the length direction of piston rod is parallel, the gear set up in on the motor output shaft, the gear with outer ring gear meshing.

Through adopting above-mentioned technical scheme, when the stopper need be installed, motor drive gear among the slewing mechanism rotates, and the gear drives the rotation of meshed external gear, rotates the cover along with the external gear rotates together, will rotate cover and connecting rod threaded connection, and slewing mechanism can more quick replacement stopper plate, further raises the efficiency.

Optionally, the discharging pipe is provided with be used for with the connecting rod butt in the butt device of rotating the cover, the butt device includes the spring and is used for driving the spring along keeping away from the mechanism of dodging that the barrier plate direction removed, dodge the mechanism set up in on the discharging pipe, the one end of spring set up in dodge in on the mechanism, the other end of spring set up in on the barrier plate.

By adopting the technical scheme, when the blocking plate is replaced, the connecting rod of the blocking plate is abutted to the rotating sleeve by the spring on the abutting device, so that the rotating sleeve can rotate conveniently, and the blocking plate is installed; when the blocking block is detached, the spring is driven by the avoiding mechanism to keep the spring away from the blocking plate, so that the blocking plate is prevented from being detached.

Optionally, dodge the mechanism and include second pneumatic cylinder, installation piece, guide bar and butt piece, the second pneumatic cylinder set up in on the discharging pipe, the length direction of second pneumatic cylinder with the barrier plate direction of motion is perpendicular, the installation piece is located on the piston rod of second pneumatic cylinder, the guiding hole has been seted up on the installation piece, the length direction of guiding hole with the length direction of second pneumatic cylinder is perpendicular, the guide bar slide connect in the guiding hole, the butt piece set up in the installation piece is close to the one end of barrier plate, the butt piece is used for the butt the barrier plate, the one end of spring set up in the installation piece is close to one of butt piece is served, the other end of spring set up in the butt piece is close to one of installation piece is served.

By adopting the technical scheme, when the blocking plate needs to be abutted, the second hydraulic cylinder extends the piston rod, the mounting block on the piston rod is also close to the blocking plate, the abutting block is connected to the mounting block in a sliding manner through the guide rod, and the abutting block is abutted to the blocking plate under the action of the spring; when the blocking plate needs to be detached, a piston rod of the second hydraulic cylinder contracts, and the abutting block abutted against the blocking plate is far away from the blocking plate; the avoiding mechanism can avoid the situation that the spring is stressed to cause that the abutting stop plate cannot be continuously abutted, and the position of the avoiding mechanism is conveniently changed under the action of the second hydraulic cylinder, so that the abutting stop plate and the avoiding stop plate are realized.

Optionally, be provided with the regulation on the butt device the spring is right the regulating part of butt piece elasticity effect, the regulating part includes adjusting nut and stopper, adjusting nut threaded connection in on the guide bar, the spring housing is located on the guide bar, the one end butt of spring in on the installation piece, the other end butt of spring in on the adjusting nut, the stopper set up in the guide bar, the stopper is located the installation piece is kept away from the one end of butt piece, the stopper butt in on the installation piece.

By adopting the technical scheme, the spring on the guide rod is abutted against one end of the mounting block, and the other end of the spring is abutted against the adjusting nut; when the spring is used for a long time, the elastic effect of the spring is reduced, and the elastic force of the spring can be changed by rotating the adjusting nut; the adjusting piece increases the service life of the spring.

Optionally, the guiding hole inner wall is provided with the strip that slides, the length direction of the strip that slides with the extending direction of guiding hole is parallel, seted up on the guide bar with the strip that slides the complex groove that slides, be provided with on the butt joint piece and be used for with the barrier plate is followed and is close to the spigot surface that the direction of second pneumatic cylinder guided.

By adopting the technical scheme, the rotation of the mounting block can be reduced through the matching of the sliding strip and the sliding groove, and the mounting block is provided with the guide surface which is used for continuously abutting against the blocking plate; when the avoiding mechanism drives the abutting device, the guide surface firstly abuts against the blocking plate, the abutting block moves towards the direction far away from the blocking plate, the piston rod of the second hydraulic cylinder continues to move, and the end face, far away from the mounting block, of the abutting block abuts against the end face of the blocking plate; the guide of the guide surface can facilitate the butt connection and the installation.

Optionally, the discharge pipe is far away from the end face of the storage bin and is obliquely arranged.

Through adopting above-mentioned technical scheme, when the slope setting of discharging pipe can reduce the material and drop the storehouse of weighing, the material directly drops the barrier plate of discharging pipe department perpendicularly, produces great impact force to the barrier plate.

The second aspect, the application provides a proportioning machine adopts following technical scheme:

a proportioning machine comprises the proportioning bin, a weighing bin and a machine body; the proportioning bins set up in on the organism, the storehouse of weighing set up in on the organism, the proportioning bins is located directly over the storehouse of weighing.

Through adopting above-mentioned technical scheme, the driving piece that has reduced the proportioning bins damages, and the efficiency of proportioning bins has been improved in the ejection of compact of the proportioning bins of being convenient for.

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

1. the blocking device of the discharging pipe is connected to the proportioning bin in a sliding mode and driven by the first hydraulic cylinder, damage to the driving piece of the blocking device is reduced, and discharging of the proportioning bin is facilitated.

2. The connecting device, the rotating mechanism, the abutting device, the avoiding mechanism and the adjusting piece on the proportioning bin are convenient for installing the barrier plate, and the installation efficiency of the barrier plate is improved.

3. The discharging pipe slope setting of proportioning bins has reduced the direct impact to the barrier plate when the material is placed, has reduced the damage of barrier plate.

Drawings

Fig. 1 shows a blocking element of a dispensing bin and a sliding structure of the blocking element.

Fig. 2 is an exploded view of fig. 1, showing the mating relationship of the coupling device and the transmission.

Fig. 3 shows the positional relationship between the abutting device and the avoiding mechanism of the batching bin.

FIG. 4 is an enlarged view of FIG. 3A showing the positional relationship of the avoidance mechanism and the adjustment member

Figure 5 is an exploded view of figure 4 showing the mating relationship of the abutment device, the avoidance mechanism and the adjustment member.

FIG. 6 is a schematic view of the dispensing machine as a whole showing the positional relationship of the components of the dispensing machine.

Reference numerals: 1. a bin body; 11. a storage bin; 12. a discharge pipe; 2. a blocking member; 21. a blocking plate; 22. a first hydraulic cylinder; 23. a pulley; 24. a slide bar; 25. a support; 26. a chute; 3. a connecting device; 31. a clamping block; 32. a connecting rod; 33. rotating the sleeve; 34. a ring groove; 35. a card slot; 4. a rotating mechanism; 41. an outer ring gear; 42. a mounting frame; 43. a gear; 44. a motor; 5. an abutment device; 51. a spring; 6. an avoidance mechanism; 61. a second hydraulic cylinder; 62. mounting blocks; 63. a guide bar; 64. a guide hole; 65. a butting block; 7. an adjustment member; 71. adjusting the nut; 72. a limiting block; 8. a sliding strip; 81. a sliding groove; 82. a guide surface; 9. a weighing bin; 91. a body; 92. a weighing device.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses proportioning bins. Referring to fig. 1, a proportioning bins includes the storehouse body 1, storehouse body 1 includes storage silo 11 and discharging pipe 12, discharging pipe 12 is located the lower extreme of storage silo 11, discharging pipe 12 and storage silo 11 intercommunication, the discharge gate has been seted up to the one end that discharging pipe 12 kept away from storage silo 11, the transversal personally submitting of the lateral wall of discharging pipe 12 is square, the length direction of discharging pipe 12 sets up along vertical downwards, the terminal surface slope setting of discharging pipe 12 keeping away from storage silo 11, discharging pipe 12 is double-phase all fixed slide bar 24 that is provided with to the outside lateral wall, the length direction of slide bar 24 is parallel with the terminal surface slope direction of discharging pipe 12.

Referring to fig. 1, a sliding groove 26 is formed in a side wall of the sliding rod 24, which is far away from the discharging pipe 12, the length direction of the sliding groove 26 is parallel to the length direction of the sliding rod 24, the sliding groove 26 penetrates through the sliding rod 24 along the length direction of the sliding groove 26, a blocking piece 2 is arranged on the discharging pipe 12, the blocking piece 2 comprises a blocking plate 21 and a first hydraulic cylinder 22, the end surface of the blocking plate 21 is attached to the end surface of the discharging pipe 12, which is far away from the storage bin 11, two brackets 25 are fixedly arranged on two side walls of the blocking plate 21, which are close to the sliding rod 24, respectively, the two brackets 25 are distributed along the length direction of the sliding rod 24, a pulley 23 is rotatably arranged on each bracket 25, the axial direction of the pulley 23 is perpendicular to the movement direction of the blocking plate 21, and the lowest part of the pulley 23 is rotatably connected to the bottom end of the sliding groove 26; the first hydraulic cylinder 22 is fixedly arranged on the discharge pipe 12, the length direction of the first hydraulic cylinder 22 is parallel to the length direction of the slide rod 24, and the first hydraulic cylinder 22 is positioned on the higher side of the lower end surface of the discharge pipe 12.

Referring to fig. 1 and 2, a connecting device 3 is arranged on a piston rod of the first hydraulic cylinder 22, the connecting device 3 includes a fixture block 31, a connecting rod 32 and a rotating sleeve 33, the fixture block 31 is fixedly arranged at one end of the piston rod of the first hydraulic cylinder 22, the length direction of the fixture block 31 is parallel to the length direction of the first hydraulic cylinder 22, a circular groove 34 is formed in the piston rod of the first hydraulic cylinder 22, the axial direction of the rotating sleeve 33 is parallel to the length direction of the first hydraulic cylinder 22, the rotating sleeve 33 is rotatably connected in the circular groove 34, and a thread is formed in the inner side wall of the rotating sleeve 33; connecting rod 32 is fixed to be set up on barrier plate 21, connecting rod 32 is located the one end that barrier plate 21 is close to first pneumatic cylinder 22, the length direction of connecting rod 32 is parallel with the length direction of first pneumatic cylinder 22, the transversal circular of personally submitting of connecting rod 32, the length direction of connecting rod 32 and the coaxial setting of first pneumatic cylinder 22's piston rod, draw-in groove 35 has been seted up to the one end that barrier plate 21 was kept away from to connecting rod 32, the length direction of draw-in groove 35 is parallel with the length direction of connecting rod 32, connecting rod 32 passes through fixture block 31 and the cooperation of draw-in groove 35 joint with first pneumatic cylinder 22's piston rod, the screw thread has been seted up on connecting rod 32, rotate cover 33 and connecting rod 32 threaded connection.

Referring to fig. 2, a transmission mechanism 4 is arranged on the first hydraulic cylinder 22, the transmission mechanism 4 includes an outer gear ring 41, a mounting frame 42, a gear 43 and a motor 44, the mounting frame 42 is fixedly arranged on a piston rod of the first hydraulic cylinder 22, the motor 44 is fixedly arranged on the mounting frame 42, the length direction of the motor 44 is parallel to the length direction of the first hydraulic cylinder 22, the gear 43 is fixedly arranged on an output shaft of the motor 44, the gear 43 is coaxially arranged with the output shaft of the motor 44, the outer gear ring 41 is fixedly arranged on the rotating sleeve 33, the outer gear ring 41 is coaxially arranged with the rotating sleeve 33, and the gear 43 is meshed with the outer gear ring 41.

Referring to fig. 3 and 4, the lower side of the lower end surface of the discharge pipe 12 is provided with the abutting device 5, the abutting device 5 comprises a spring 51 and an avoiding mechanism 6, the avoiding mechanism 6 comprises a second hydraulic cylinder 61, an installation block 62, a guide rod 63 and an abutting block 65, the second hydraulic cylinder 61 is located on the side away from the first hydraulic cylinder 22, the second hydraulic cylinder 61 is fixedly arranged on the discharge pipe 12, the length direction of the second hydraulic cylinder 61 is perpendicular to the movement direction of the blocking plate 21, the installation block 62 is fixedly arranged on the end, away from the second hydraulic cylinder 61, of the piston rod of the second hydraulic cylinder 61, the installation block 62 is provided with a guide hole 64 along the movement direction of the blocking plate 21, a sliding strip 8 is fixedly arranged in the guide hole 64, the length direction of the sliding strip 8 is parallel to the length direction of the guide hole 64, a sliding groove 81 for sliding the sliding strip 8 is arranged on the guide rod 63, the length direction of the sliding groove 81 is parallel to the length direction of the guide hole 64, the guide rod 63 is fixedly arranged on the end, which is close to the blocking plate 21 and is used for abutting against the blocking plate 21.

Referring to fig. 4 and 5, a guide surface 82 is provided between an end surface of the abutting block 65 close to the blocking plate 21 and an end surface of the abutting block 65 far away from the second hydraulic cylinder 61, an adjusting member 7 is provided on the guide rod 63, the adjusting member 7 includes an adjusting nut 71 and a limiting block 72, a thread is provided on the guide rod 63, the adjusting nut 71 is in threaded connection with the guide rod 63, the spring 51 is sleeved on the guide rod 63, one end of the spring 51 is fixedly provided on the mounting block 62, the other end of the spring 51 abuts against the adjusting nut 71, the limiting block 72 is fixedly provided on the guide rod 63, and the limiting block 72 is located at one end of the mounting block 62 far away from the abutting block 65.

The embodiment of this application embodiment a proportioning bins's implementation principle does: when the storage bin 11 needs to discharge, the first hydraulic cylinder 22 retracts the piston rod to drive the blocking plate 21 to move, the discharge hole of the discharge pipe 12 is opened, when the discharge of the discharge pipe 12 is finished, the piston rod of the first hydraulic cylinder 22 is extended, and the blocking plate 21 blocks the discharge pipe 12 on the end surface of the discharge pipe 12 through sliding.

When the blocking plate 21 needs to be replaced after being used for a long time, the motor 44 on the mounting rack 42 of the piston rod of the first hydraulic cylinder 22 drives the gear 43 to rotate, the gear 43 drives the outer gear ring 41 to rotate, the outer gear ring 41 drives the rotating sleeve 33 to rotate, the rotating sleeve 33 and the connecting rod 32 on the blocking plate 21 are separated through threads, the piston rod of the second hydraulic cylinder 61 of the avoiding mechanism 6 contracts, and the abutting device 5 is driven to move vertically upwards.

When a new blocking plate 21 needs to be installed, a worker firstly connects the blocking plate 21 in the sliding groove 26 in a sliding manner through the pulley 23, when the blocking plate 21 needs to be connected, the second hydraulic cylinder 61 of the avoidance mechanism 6 extends a piston rod of the second hydraulic cylinder 61 to push the abutting device 5 to abut on the blocking plate 21 through the guide surface 82 of the abutting block 65, the spring 51 is compressed by the guide of the guide rod 63, then the piston rod of the second hydraulic cylinder 61 continues to extend, the abutting block 65 abuts on the blocking plate 21 close to the end surface of the blocking plate 21, the connecting rod 32 abuts on the rotating sleeve 33, the transmission mechanism 4 conveniently rotates the rotating sleeve 33, the connecting rod 32 is connected with the rotating sleeve 33 in a threaded manner, installation of the blocking plate 21 is completed, when the elasticity of the spring 51 is insufficient, the adjusting nut 71 can be rotated to improve the elasticity of the spring 51, and the effect of the abutting device 5 on the blocking plate 21 is increased.

The embodiment of the application also discloses a proportioning machine. Referring to fig. 6, a dispensing machine includes the above dispensing bin, weighing bin 9, and body 91; the proportioning bin is fixedly arranged on the machine body 91, the weighing bin 9 is fixedly arranged on the machine body 91 through the weighing device 92, and the weighing bin 9 is positioned right below the proportioning bin; the material is put into the storehouse 9 of weighing through the discharging pipe 12 of above-mentioned proportioning bins, through the weighing in the storehouse 9 of weighing, transports a certain amount of material to in the follow-up mechanism.

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: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a proportioning bins which characterized in that: including the storehouse body (1), storehouse body (1) includes storage silo (11) and discharging pipe (12), and discharging pipe (12) of locating are located the lower extreme of storage silo (11), discharging pipe (12) with storage silo (11) intercommunication, discharging pipe (12) are kept away from the discharge gate has been seted up to the one end of storage silo (11), be provided with on discharging pipe (12) and be used for blockking piece (2) of discharging pipe (12) ejection of compact, piece (2) are including blockking plate (21) and being used for driving first pneumatic cylinder (22) that blockking plate (21) slided, the terminal surface that blocks plate (21) with discharging pipe (12) are kept away from the terminal surface laminating of storage silo (11), blockking plate (21) slide connect in discharging pipe (12) are kept away from on the terminal surface of storage silo (11), first pneumatic cylinder (22) set up in on discharging pipe (12), it sets up in to block plate (21) on the piston rod of first pneumatic cylinder (22).

2. The proportioning bin of claim 1 wherein: block and rotate on the board (21) and be provided with pulley (23), the axis direction of pulley (23) with block board (21) sliding direction is perpendicular, seted up the confession on discharging pipe (12) spout (26) that pulley (23) slided, the length direction of spout (26) is followed block board (21) sliding direction extends.

3. The proportioning bin of claim 1 wherein: be provided with connecting device (3) that are used for connecting barrier plate (21) on first pneumatic cylinder (22), connecting device (3) include fixture block (31), connecting rod (32) and rotate cover (33), fixture block (31) set up in the one end of first pneumatic cylinder (22) piston rod, connecting rod (32) set up in barrier plate (21) are close to one of first pneumatic cylinder (22) is served, the length direction of connecting rod (32) with the direction of motion of barrier plate (21) is parallel, seted up on connecting rod (32) with fixture block (31) joint complex draw-in groove (35), the axis of rotating cover (33) with the length direction of connecting rod (32) is parallel, it rotates to connect on the piston rod of first pneumatic cylinder (22) to rotate cover (33) one end, it connects in to rotate cover (33) other end threaded connection on connecting rod (32).

4. The proportioning bin of claim 3 wherein: be provided with the drive on first pneumatic cylinder (22) and rotate cover (33) pivoted drive mechanism (4), drive mechanism (4) include outer ring gear (41), mounting bracket (42), gear (43) and motor (44), outer ring gear (41) set up in rotate on the cover (33), the axis of outer ring gear (41) with the axis direction of rotating cover (33) is parallel, mounting bracket (42) set up in on the piston rod of first pneumatic cylinder (22), motor (44) set up in on mounting bracket (42), the length direction of motor (44) with the length direction of the piston rod of first pneumatic cylinder (22) is parallel, gear (43) set up in on motor (44) output shaft, gear (43) with outer ring gear (41) meshing.

5. The proportioning bin of claim 3 wherein: discharging pipe (12) be provided with be used for with connecting rod (32) butt in rotate butt device (5) of cover (33), butt device (5) include spring (51) and be used for driving spring (51) along keeping away from dodging mechanism (6) that barrier plate (21) direction removed, dodge mechanism (6) set up in on discharging pipe (12), the one end of spring (51) set up in dodge on mechanism (6), the other end of spring (51) set up in on barrier plate (21).

6. The proportioning bin of claim 5 wherein: dodge mechanism (6) including second pneumatic cylinder (61), installation piece (62), guide bar (63) and butt piece (65), second pneumatic cylinder (61) set up in on discharging pipe (12), the length direction of second pneumatic cylinder (61) with stop plate (21) direction of motion is perpendicular, installation piece (62) are located on the piston rod of second pneumatic cylinder (61), guiding hole (64) have been seted up on installation piece (62), the length direction of guiding hole (64) with the length direction of second pneumatic cylinder (61) is perpendicular, guide bar (63) slide connect in guiding hole (64), butt piece (65) set up in installation piece (62) are close to the one end of stop plate (21), butt piece (65) are used for the butt stop plate (21), the one end of spring (51) set up in installation piece (62) are close to on the one end of butt piece (65), the other end of spring (51) set up in butt piece (65) are close to the one end of installation piece (62) is close to on the installation piece (62).

7. The proportioning bin of claim 6 wherein: be provided with the regulation on butt device (5) spring (51) is right regulating part (7) of butt piece (65) elasticity effect, regulating part (7) are including adjusting nut (71) and stopper (72), adjusting nut (71) threaded connection in on guide bar (63), spring (51) cover is located on guide bar (63), the one end butt of spring (51) in on installation piece (62), the other end butt of spring (51) in on adjusting nut (71), stopper (72) set up in guide bar (63), stopper (72) are located installation piece (62) are kept away from the one end of butt piece (65), stopper (72) butt in on installation piece (62).

8. The proportioning bin of claim 6 wherein: guiding hole (64) inner wall is provided with the strip (8) that slides, the length direction of the strip (8) that slides with the extending direction of guiding hole (64) is parallel, seted up on guide bar (63) with the strip (8) that slides the complex groove (81) that slides, be provided with on butt joint piece (65) and be used for with barrier plate (21) are followed and are close to spigot surface (82) that the direction of second pneumatic cylinder (61) was led.

9. The proportioning bin of claim 1 wherein: the discharge pipe (12) is far away from the end face of the storage bin (11) and is obliquely arranged.

10. The utility model provides a proportioning machine which characterized in that: comprising the proportioning bin, the weighing bin (9) and the machine body (91) of any one of claims 1 to 9, the proportioning bin is arranged on the machine body (91), the weighing bin (9) is arranged on the machine body (91), and the proportioning bin is positioned right above the weighing bin (9).

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