CN216392576U

CN216392576U - Multi-bin type full-automatic pig feed feeding device

Info

Publication number: CN216392576U
Application number: CN202120861620.XU
Authority: CN
Inventors: 祁军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2022-04-29
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a multi-bin full-automatic pig feed feeding device which comprises a support, wherein a track is arranged on the support, a walking material separating box is arranged on the track, a plurality of bins for special feed of opposite pigs in different growth periods are arranged in the walking material separating box, material shortage sensing assemblies are arranged at the bottoms of the bins, two-way feeding mechanisms are arranged at the bottoms of the bins, left discharge pipes and right discharge pipes are respectively arranged on outlets at two ends of each two-way feeding mechanism, left closing assemblies and right closing assemblies are respectively arranged on outlets of the left discharge pipes and the right discharge pipes, and outlets of the left discharge pipes and the right discharge pipes respectively correspond to left pig feed grooves and right pig feed grooves which are arranged on two sides of the support. The utility model can solve the problems that the current pig feed feeding automation degree is low, the feed supply is too single, only one feed can be supplied at a time, and the feed supply required by different growing periods of live pigs cannot be realized.

Description

Multi-bin type full-automatic pig feed feeding device

Technical Field

The utility model relates to the technical field of pig feed feeding equipment, in particular to a multi-bin full-automatic pig feed feeding device.

Background

In the live pig breeding process, the feed process management of pig is the key link, direct relation is to breeding quality and economic benefits, when traditional pig farm is fed the food for the pig at every turn, all will artifically add the pig food to the pig inslot, because the pig of raising is more, the personnel of feeding need carry the pig food bucket to add the pig food to the pig inslot one by one, so not only inefficiency, and the personnel's of raising the amount of labour is big, be unfavorable for going up the scale breed, therefore, pig feed feeding equipment has appeared on the market, the appearance of pig feed feeding equipment, the work efficiency has been improved, the labour has been liberated, however, present pig feed degree of automation is low, the feed supply is too single, can only supply a fodder once, can't be to the supply of the required fodder of different growing periods of live pig.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model provides a multi-bin full-automatic pig feed feeding device which can avoid the problems that the current pig feed feeding automation degree is low, the feed supply is too single, only one feed can be supplied at one time, and the feed supply required by different growing periods of live pigs cannot be realized.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a multi-bin full-automatic pig feed feeding device comprises a support, wherein a track is arranged on the support, a walking material separating box is arranged on the track, a plurality of bins of special feed for different growth periods of live pigs are arranged in the walking material separating box, material shortage sensing assemblies are arranged at the bottoms of the bins, a bidirectional feeding mechanism is arranged at the bottom of each bin, a left discharging pipe and a right discharging pipe are respectively arranged on outlets at two ends of the bidirectional feeding mechanism, a left closing assembly and a right closing assembly are respectively arranged on outlets of the left discharging pipe and the right discharging pipe, outlets of the left discharging pipe and the right discharging pipe respectively correspond to a left pig trough and a right pig trough which are arranged at two sides of the support, a proximity switch corresponding to the left pig trough or the right pig trough is arranged on the track, and a left material full sensor and a right material full sensor are respectively arranged on outlets of the left discharging pipe and the right discharging pipe, lack material sensing component, proximity switch and a left side and expect that full sensor and right side expect that full sensor is connected with PLC control system respectively, PLC control system respectively with walking divides the power component of workbin, two-way feeding mechanism's power component and a left side to close the power source that subassembly and right side closed the subassembly and be connected.

The inside feed bin that is provided with the special fodder of a plurality of different growth periods of opposite pig of walking branch workbin specifically is initial stage feed bin, middle feed bin and later stage feed bin, initial stage feed bin bottom sets up first low level sensor, middle feed bin bottom sets up the low level sensor of second, later stage feed bin bottom sets up the low level sensor of third, two-way feeding mechanism includes initial stage screw feeder, middle stage screw feeder and later stage screw feeder, initial stage screw feeder level set up in on the export of initial stage feed bin bottom, initial stage screw feeder both ends bottom is provided with first left export and first right export respectively, the cooperation is installed on the main shaft of initial stage screw feeder, the cooperation is installed first positive reverse motor on the power input end of first reduction gear, middle stage screw feeder level set up in on the export of middle stage feed bin bottom, middle period screw feeder both ends bottom is provided with the export on the left side of second and the export on the right side of second respectively, the second reduction gear is installed in the cooperation on middle period screw feeder's the main shaft, the positive motor that reverses of cooperation installation second on the power input of second reduction gear, later stage screw feeder level set up in on the export of later stage feed bin bottom, later stage screw feeder both ends bottom is provided with the export on the left side of third and the export on the right side of third respectively, the third reduction gear is installed in the cooperation on later stage screw feeder's the main shaft, the cooperation is installed the positive motor that reverses of third on the power input of third reduction gear, first left side export, the export on the left side of second and the export on the left side of third jointly with left side discharging pipe is connected, first right side export, export on the right side of second and the export on the right side of third jointly with right side discharging pipe is connected.

The left side is closed the subassembly and is in including setting up left direct current motor on the discharging pipe of a left side, the left shutoff door of cooperation installation in left direct current motor's the pivot, left side shutoff door corresponds the setting and is in on the mouth of pipe of left side discharging pipe, the right side is closed the subassembly and is in including setting up right direct current motor on the discharging pipe of the right side, cooperation installation right shutoff door in the pivot of right direct current motor, right side shutoff door corresponds the setting and is in on the mouth of pipe of right side discharging pipe.

The walking divides the workbin to include the box and sets up the running gear on the box, running gear including set up in a set of driven gyro wheel of box front end with set up in a set of initiative gyro wheel of box rear end, driven gyro wheel and initiative gyro wheel all set up on the track, the pivot cooperation of initiative gyro wheel is installed on the fourth reduction gear, cooperation installation fourth is motor just reversing on the power input of fourth reduction gear.

The pig feeding trough is characterized in that herringbone distributing devices are arranged in the left pig feeding trough and the right pig feeding trough, an inlet at the upper end of the herringbone distributing device in the left pig feeding trough corresponds to an outlet at the bottom of the left discharge pipe, and an inlet at the upper end of the herringbone distributing device in the right pig feeding trough corresponds to an outlet at the bottom of the right discharge pipe.

The utility model has the beneficial effects that: the utility model has simple structure and high automation degree, can load the required feed of live pigs in different growth periods according to the requirements, feeds according to the actual feed types, is simple and efficient, when in use, the position of the pig feed trough is determined by utilizing the proximity switch corresponding to the position of the left pig feed trough or the right pig feed trough, after the pig feed enters a working area, the PLC control system drives the bidirectional feeding mechanism, the pig feed is fed into the left pig feed trough and the right pig feed trough by utilizing the outlets at the two ends of the bidirectional feeding mechanism through the left discharge pipe and the right discharge pipe, wherein, the outlets of the left discharge pipe and the right discharge pipe are respectively provided with a left full feed sensor and a right full feed sensor, the purpose of preventing the feed is to overflow, when the feed in the left pig feed trough and the right pig feed trough is detected to overflow, the left closing component and the right closing component respectively arranged on the outlets of the left discharge pipe and the right discharge pipe are closed, so that the left discharge pipe and the right discharge pipe stop the feed discharging, and the PLC control system controls the walking material distribution box to continuously move towards the next group of left pig feed trough and right pig feed trough, and feeding is carried out again. As a preferred technical scheme, an initial feed bin, a middle-stage feed bin and a later-stage feed bin are arranged in a walking feed dividing box, aiming at three growth periods of live pigs, a first low material level sensor is arranged at the bottom of the initial feed bin, a second low material level sensor is arranged at the bottom of the middle-stage feed bin, a third low material level sensor is arranged at the bottom of the later-stage feed bin to detect whether the feed in the feed bin is too little, a bidirectional feeding mechanism is an initial screw feeder, the middle-stage screw feeder and the later-stage screw feeder respectively correspond to the three feed bins, a first left outlet and a first right outlet are respectively arranged at the bottoms of two ends of the initial screw feeder, a second left outlet and a second right outlet are respectively arranged at the bottoms of two ends of the middle-stage screw feeder, a third left outlet and a third right outlet are respectively arranged at the bottoms of two ends of the later-stage screw feeder, when the initial screw feeder, the middle-stage screw feeder and the later-stage screw feeder rotate forwards or rotate backwards respectively, can push the export on the left with the fodder, also can push the export on the right, and first left export, the export on the left of second and the export on the left of third are connected with left discharging pipe jointly, and first right export, the export on the right of second and the export on the right of third are connected with right discharging pipe jointly for left pig trough and right pig trough feed respectively can be to left pig trough and right pig trough feed with right discharging pipe. As an optimal technical scheme, the left closing assembly drives the left sealing door on the rotating shaft to rotate through the left direct current motor to close or open the left discharging pipe, and the right closing assembly drives the right sealing door on the rotating shaft to rotate through the right direct current motor to close or open the right discharging pipe. As a preferred technical scheme, the walking divides the workbin to include the box and sets up the running gear on the box, and running gear is including setting up in a set of driven gyro wheel of box front end and setting up in a set of initiative gyro wheel of box rear end, and the fourth is positive reverse motor with power transmission for the pivot of initiative gyro wheel through the fourth reduction gear for the box can move on the track. Furthermore, all be provided with chevron shape distributing device in left pig trough and the right pig trough, chevron shape distributing device can prevent that the fodder from piling up in a department with even leading-in left pig trough and the right pig trough of the fodder that left discharging pipe or right discharging pipe sent.

Drawings

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

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a right side view of fig. 1.

Fig. 4 is a top view of the walking distribution box.

Fig. 5 is a schematic structural view of the right closing assembly.

Fig. 6 is a schematic view of the structure of the left closure assembly.

Fig. 7 is a schematic diagram of a PLC control system of the present invention.

Detailed Description

As shown in figures 1 to 3, a multi-bin full-automatic pig feed feeding device comprises a support 3, a track 2 is arranged on the support 3, a walking material separating box 12 is arranged on the track 2, a plurality of bins for special feed for different growth periods of live pigs are arranged in the walking material separating box 12, material shortage sensing assemblies are arranged at the bottoms of the bins, a bidirectional feeding mechanism is arranged at the bottom of each bin, a left discharging pipe 9 and a right discharging pipe 4 are respectively arranged at outlets at two ends of the bidirectional feeding mechanism, a left closing assembly and a right closing assembly are respectively arranged at outlets of the left discharging pipe 9 and the right discharging pipe 4, outlets of the left discharging pipe 9 and the right discharging pipe 4 respectively correspond to a left pig feeding groove 8 and a right pig feeding groove 5 which are arranged at two sides of the support 3, an approach switch 23 corresponding to the position of the left pig feeding groove 8 or the right pig feeding groove 5 is arranged on the track 2, a left material full sensor 25 and a right material full sensor 24 are respectively arranged at outlets of the left discharging pipe 9 and the right discharging pipe 4, the material shortage sensing assembly, the proximity switch 23, the left material full sensor 25 and the right material full sensor 24 are respectively connected with a PLC control system, and the PLC control system is respectively connected with the power assembly of the walking material distribution box 12, the power assembly of the bidirectional feeding mechanism and the power sources of the left closing assembly and the right closing assembly.

As shown in fig. 1 to 4, the traveling feed distributing box 12 is internally provided with a plurality of feed bins, specifically an initial feed bin 121, a middle feed bin 122 and a later feed bin 123, the bottom of the initial feed bin 121 is provided with a first low material level sensor 28, the bottom of the middle feed bin 122 is provided with a second low material level sensor 27, the bottom of the later feed bin 123 is provided with a third low material level sensor 26, the bidirectional feeding mechanism comprises an initial screw feeder, a middle screw feeder and a later screw feeder, the initial screw feeder is horizontally arranged on the bottom outlet of the initial feed bin 121, the bottoms of two ends of the initial screw feeder are respectively provided with a first left outlet and a first right outlet, a main shaft of the initial screw feeder is cooperatively provided with a first speed reducer 17, a power input end of the first speed reducer 17 is cooperatively provided with a first forward and reverse rotation motor 16, the middle screw feeder is horizontally arranged on the bottom outlet of the middle feed bin 122, middle stage screw feeder both ends bottom is provided with the export on the left side of second and the export on the right side of second respectively, second reduction gear 19 is installed in the cooperation on middle stage screw feeder's the main shaft, cooperation installation second positive reverse motor 18 on the power input of second reduction gear 19, later stage screw feeder level sets up in the export of later stage manger 123 bottom, later stage screw feeder both ends bottom is provided with export on the left side of third and the export on the right side of third respectively, third reduction gear 10 is installed in the cooperation on later stage screw feeder's the main shaft, cooperation installation third positive reverse motor 11 on the power input of third reduction gear 10, first left side export, export on the left side of second and the export on the left side of third are connected with left discharging pipe 9 jointly, first right side export, export on the right side of second and the export on the right side of third are connected with right discharging pipe 4 jointly.

As shown in fig. 1, fig. 5 and fig. 6, the left closing assembly comprises a left direct current motor 7 arranged on a left discharge pipe 9, a left plugging door 22 is installed on a rotating shaft of the left direct current motor 7 in a matched mode, the left plugging door 22 is correspondingly arranged on a pipe orifice of the left discharge pipe 9, the right closing assembly comprises a right direct current motor 6 arranged on a right discharge pipe 4, a right plugging door 21 is installed on a rotating shaft of the right direct current motor 6 in a matched mode, and the right plugging door 21 is correspondingly arranged on a pipe orifice of the right discharge pipe 4.

As shown in fig. 1 and 2, the traveling and distributing box 12 includes a box body and a traveling mechanism disposed on the box body, the traveling mechanism includes a set of driven rollers 1 disposed at the front end of the box body and a set of driving rollers 15 disposed at the rear end of the box body, the driven rollers 1 and the driving rollers 15 are disposed on the track 2, the rotating shaft of the driving rollers 15 is mounted on the fourth speed reducer 14 in a matching manner, and the power input end of the fourth speed reducer 14 is mounted with the fourth forward and reverse rotation motor 13 in a matching manner.

As shown in figures 1 to 3, herringbone distributors 20 are arranged in the left pig feeding trough 8 and the right pig feeding trough 5, the inlet at the upper end of the herringbone distributor 20 in the left pig feeding trough 8 corresponds to the outlet at the bottom of the left discharge pipe 9, and the inlet at the upper end of the herringbone distributor 20 in the right pig feeding trough 5 corresponds to the outlet at the bottom of the right discharge pipe 4.

As shown in fig. 7, the PLC control system of the present invention includes a PLC controller 33, the PLC controller 33 is connected to a relay module 32, the relay module 32 is connected to a connection terminal 31, the connection terminal 31 is connected to the left dc motor 7 and the right dc motor 6 through the left dc motor forward/reverse controller 30 and the right dc motor forward/reverse controller 29, the connection terminal 31 is connected to the third forward/reverse motor 11, the fourth forward/reverse motor 13, the first forward/reverse motor 16, and the second forward/reverse motor 18, the relay module 32 is connected to the first low material level sensor 28, the second low material level sensor 27, the third low material level sensor 26, the proximity switch 23, the right material full sensor 24, and the left material full sensor 25, and the relay module 32 is a 24V12 road ohm relay module.

When the utility model is used, the feed in three growth periods of live pigs is respectively loaded into an initial feeding bin 121, a middle feeding bin 122 and a later feeding bin 123, a PLC (programmable logic controller) 33 starts a fourth forward and reverse rotation motor 13 through a relay module 32, the fourth forward and reverse rotation motor 13 drives a driving roller 15 to rotate through a fourth speed reducer 14, so that a walking distributing box 12 starts to move on a track 2, when the walking distributing box 12 moves to a proximity switch 23 corresponding to the position of a left pig trough 8 or a right pig trough 5, the proximity switch 23 transmits an electric signal to the PLC 33 through the relay module 32, the PLC 33 firstly starts a left direct current motor 7 and a right direct current motor 6 to rotate forwards through the relay module 32, the left direct current motor forward and reverse rotation controller 30 and the right direct current motor forward and reverse rotation controller 29 in sequence, a main shaft of the left direct current motor 7 and the right direct current motor 6 respectively drives a left blocking door 22 and a right blocking door 21 to rotate downwards, the left discharging pipe 9 and the right discharging pipe 4 are opened, the PLC 33 turns off the fourth forward and reverse rotation motor 13 through the relay module 32, simultaneously starts any one of the third forward and reverse rotation motor 11, the first forward and reverse rotation motor 16 and the second forward and reverse rotation motor 18 (according to the growing period of the live pig at the moment), for example, at the initial growth stage of the live pig, the first forward and reverse rotation motor 16 is started, the first forward and reverse rotation motor 16 drives the main shaft of the initial screw feeder to rotate forwards through the first speed reducer 17, the feed in the initial feed bin 121 enters the left discharging pipe 9 through the first left outlet, enters the herringbone distributor 20 through the left discharging pipe 9 and finally enters the left pig feeding trough 8, when the left full feed sensor 25 on the left discharging pipe 9 senses that the feed in the left pig feeding trough 8 is full and about to overflow, an electric signal is transmitted to the PLC 33 through the relay module 32, the PLC 33 drives the first forward and reverse rotation motor 16 to start reverse rotation through the relay module 32, the first forward and reverse rotation motor 16 drives the main shaft of the initial spiral feeder to reverse rotation through the first speed reducer 17, the feed in the initial feed bin 121 enters the right discharge pipe 4 through the first right outlet, enters the herringbone distributor 20 through the right discharge pipe 4 and finally enters the right pig feeding trough 5, when the right full feed sensor 24 on the right discharge pipe 4 senses that the feed in the right pig feeding trough 5 is full and is about to overflow, an electric signal is transmitted to the PLC 33 through the relay module 32, the PLC 33 turns off the first forward and reverse rotation motor 16 through the relay module 32, meanwhile, the PLC 33 starts the left direct current motor 7 and the right direct current motor 6 to start reverse rotation sequentially through the relay module 32, the left direct current motor forward and reverse rotation controller 30 and the right direct current motor forward and reverse rotation controller 29, the main shafts of the left direct current motor 7 and the right direct current motor 6 respectively drive the left sealing door 22 and the right sealing door 21 to rotate and close, the PLC 33 starts the fourth forward and reverse rotation motor 13 through the relay module 32 again, the fourth forward and reverse rotation motor 13 drives the driving roller 15 to rotate through the fourth speed reducer 14, so that the walking distribution box 12 starts to move on the track 2 again, when the walking distribution box 12 moves to the proximity switch 23 corresponding to the position of the next left pig trough 8 or the right pig trough 5, the proximity switch 23 transmits an electric signal to the PLC 33 through the relay module 32, the actions are continued until the walking distribution box 12 moves to the tail end of the track 2, and at the moment, feeding of all the pig troughs is finished. In the whole working process, if first low level sensor 28, second low level sensor 27 and third low level sensor 26 detect corresponding initial stage feed bin 121, the fodder material level in middle stage feed bin 122 and later stage feed bin 123 is low when excessively, first low level sensor 28, second low level sensor 27 and third low level sensor 26 pass through relay module 32 with the signal of telecommunication and transmit PLC controller 33, PLC controller 33 sets up the signal transmission for setting up in the outside storage tower of pig house, the storage tower injects the pig fodder into walking branch workbin 12 through the charging apparatus.

According to the PLC control system, the working conditions of all working units in the PLC control system are monitored in real time through the first low material level sensor, the second low material level sensor, the third low material level sensor, the proximity switch, the right material full sensor and the left material full sensor, and are fed back to the PLC controller in real time, the PLC controller starts or closes the working units in due time according to preset parameters on the PLC controller, so that feeding work of feed is completed, the automation degree is high, and the PLC control system is suitable for large-area pig breeding.

The model of the PLC controller 8 is CPM2AH, and the PLC controller 8 can be connected with a touch screen for inputting instruction parameters to the PLC controller 8.

Claims

1. The utility model provides a full-automatic pig feed feeding device of many storehouses formula which characterized in that: including support (3), set up track (2) on support (3), set up walking branch workbin (12) on track (2), walking branch workbin (12) inside is provided with the feed bin of a plurality of special fodder to the different growth periods of live pig, the feed bin bottom all is provided with lacks material sensing component, the feed bin bottom all is provided with two-way feeding mechanism, be provided with left discharging pipe (9) and right discharging pipe (4) respectively in the export at two-way feeding mechanism both ends, be provided with left side respectively in the export of left discharging pipe (9) and right discharging pipe (4) and close the subassembly with the right side, the export of left discharging pipe (9) and right discharging pipe (4) respectively with set up in the left pig trough (8) and right pig trough (5) of support (3) both sides are corresponding, be provided with on track (2) with corresponding proximity switch (23) in left pig trough (8) or right pig trough (5) position, all be provided with full sensor (25) of left side material and full sensor (24) of right side material on the export of left side discharging pipe (9) and right discharging pipe (4), lack full sensor (25) of material sensing component, proximity switch (23) and left side material and full sensor (24) of right side material and be connected with PLC control system respectively, PLC control system respectively with the power component of walking branch workbin (12), two-way feeding mechanism's power component and the left side close the subassembly and the right side closes the power supply connection of subassembly.

2. The multi-bin full-automatic pig feed feeding device according to claim 1, characterized in that: the walking divides the feed bin (12) inside to be provided with the feed bin of a plurality of special fodder to the different growth periods of live pig specifically be initial feed bin (121), middle feed bin (122) and later stage feed bin (123), initial feed bin (121) bottom sets up first low level sensor (28), middle feed bin (122) bottom sets up the low level sensor of second (27), later stage feed bin (123) bottom sets up the low level sensor of third (26), two-way feeding mechanism includes initial stage screw feeder, middle stage screw feeder and later stage screw feeder, initial stage screw feeder level set up in on the export of initial stage feed bin (121) bottom, initial stage screw feeder both ends bottom is provided with first left export and first right export respectively, first reduction gear (17) are installed in the cooperation on initial stage screw feeder's the main shaft, the first forward and reverse rotating motor (16) is installed on the power input end of the first speed reducer (17) in a matched mode, the middle-stage screw feeder is horizontally arranged on the outlet at the bottom of the middle-stage feed bin (122), the second left outlet and the second right outlet are respectively arranged at the bottoms of the two ends of the middle-stage screw feeder, the second speed reducer (19) is installed on the main shaft of the middle-stage screw feeder in a matched mode, the second forward and reverse rotating motor (18) is installed on the power input end of the second speed reducer (19) in a matched mode, the later-stage screw feeder is horizontally arranged on the outlet at the bottom of the later-stage feed bin (123), the third left outlet and the third right outlet are respectively arranged at the bottoms of the two ends of the later-stage screw feeder, the third speed reducer (10) is installed on the main shaft of the later-stage screw feeder in a matched mode, the third forward and reverse rotating motor (11) is installed on the power input end of the third speed reducer (10) in a matched mode, the first left outlet, the second left outlet and the third left outlet are connected with the left discharging pipe (9) together, and the first right outlet, the second right outlet and the third right outlet are connected with the right discharging pipe (4) together.

3. The multi-bin full-automatic pig feed feeding device according to claim 2, characterized in that: the left side is closed the subassembly and is in including setting up left direct current motor (7) on left discharging pipe (9), cooperation installation left shutoff door (22) are gone up in the pivot of left side direct current motor (7), left side shutoff door (22) correspond to set up on the mouth of pipe of left side discharging pipe (9), the right side is closed the subassembly and is in including setting up right direct current motor (6) on right side discharging pipe (4), cooperation installation right shutoff door (21) are gone up in the pivot of right direct current motor (6), right side shutoff door (21) correspond to set up on the mouth of pipe of right side discharging pipe (4).

4. The multi-bin full-automatic pig feed feeding device according to claim 3, characterized in that: walk and divide workbin (12) to include the box and set up the running gear on the box, running gear including set up in a set of driven gyro wheel (1) of box front end with set up in a set of initiative gyro wheel (15) of box rear end, driven gyro wheel (1) and initiative gyro wheel (15) all set up on track (2), the pivot cooperation of initiative gyro wheel (15) is installed on fourth reduction gear (14), cooperation installation fourth is just reversing motor (13) on the power input of fourth reduction gear (14).

5. The multi-bin full-automatic pig feed feeding device according to claim 4, characterized in that: all be provided with chevron shape distributing device (20) in left side pig trough (8) and right side pig trough (5), chevron shape distributing device (20) upper end import in left side pig trough (8) with left side discharging pipe (9) bottom export is corresponding, chevron shape distributing device (20) upper end import in right side pig trough (5) with right side discharging pipe (4) bottom export is corresponding.