Discharging device

Abstract

The utility model provides a blanking device. According to the discharging device, a discharging assembly is arranged on a rack, the discharging assembly comprises a discharging bin, a feeding port, a first discharging pipe and a second discharging pipe, the feeding port, the first discharging pipe and the second discharging pipe are all communicated with the interior of the discharging bin, and the discharging area of the first discharging pipe is smaller than that of the second discharging pipe; the discharging assembly comprises a valve seat and a material transferring valve plate, the valve seat is connected with the discharging bin, the valve seat is provided with a mounting cavity, a first feeding channel, a second feeding channel and a discharging channel, the first feeding channel, the second feeding channel and the discharging channel are all communicated with the mounting cavity, the first feeding channel is communicated with the first discharging pipe, the second feeding channel is communicated with the second discharging pipe, and the material transferring valve plate is movably arranged in the mounting cavity; a plurality of blanking channels are arranged on the material transfer valve plate at intervals, and the first feeding channel and the second feeding channel can selectively communicate with any two blanking channels in the plurality of blanking channels. According to the technical scheme, the problem that in the prior art, a discharging device is low in discharging precision is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material transportation, in particular to a material unloading device. Background Art

[0002] As an important conveying mechanism for powders or granules, feeding devices are widely used in the field of metering machinery. Powders can be divided into those with good or poor flowability based on their fluidity. In one type of feeding device suitable for powders with good flowability, the screw is placed vertically within the feeding channel, leveraging the material's own weight for smoother feeding. Existing feeding devices convey material by controlling the volume of the material. However, when the material is granular or powdery, the weight per unit volume can vary due to many factors. For example, there are unfilled spaces between granular particles, and there are also unfilled spaces between powder particles. This space varies with the position and state of the materials. Furthermore, due to the different particle sizes of powders and granules (granular particles are larger than powder particles), the unfilled spaces between granular particles and powder particles are often different. As a result, it is difficult for feeding devices to accurately release material according to the set volume, resulting in low material feeding accuracy.

[0003] In the prior art, a weight sensor is added to the feeding device to monitor and control the feeding process in order to solve the problem of low feeding accuracy of the feeding device. However, in the final stage of material feeding, the powder or granular material flows due to its own weight, resulting in a certain degree of uncontrollability of the feeding. The data feedback and closed-loop control of the weight sensor are difficult to effectively improve the feeding accuracy of the material. Utility Model Content

[0004] The main purpose of the utility model is to provide a blanking device to solve the problem of low blanking accuracy of the blanking device in the prior art.

[0005] In order to achieve the above-mentioned objectives, the utility model provides a unloading device, comprising: a frame; a unloading assembly, which is arranged on the frame, the unloading assembly comprising a unloading bin and a feed port, a first discharge pipe and a second discharge pipe, both of which are connected to the interior of the unloading bin, the discharge area of ​​the first discharge pipe is smaller than the discharge area of ​​the second discharge pipe; the discharge assembly comprises a valve seat and a transfer valve plate, the valve seat is connected to the unloading bin, the valve seat has an installation cavity and a first feed channel, a second feed channel and a discharge channel, both of which are connected to the installation cavity, the first feed channel is connected to the first discharge pipe, the second feed channel is connected to the second discharge pipe, the transfer valve plate is movably arranged in the installation cavity, and a plurality of unloading channels are arranged at intervals on the transfer valve plate, the first feed channel and the second feed channel can be selectively connected to any two of the plurality of unloading channels, wherein the discharge channel is arranged corresponding to the first feed channel, and along the extension direction of the unloading channel, the discharge channel and the first feed channel are respectively located on both sides of the transfer valve plate.

[0006] Furthermore, the discharge assembly also includes: a first valve plate, on which two first channels are provided; a second valve plate, on which a second channel is provided. Along the extension direction of the blanking channel, the first valve plate and the second valve plate are respectively pressed on both sides of the transfer valve plate, and the two first channels are respectively connected to the first feed channel and the second feed channel, and the second channel is respectively connected to the discharge channel.

[0007] Furthermore, the discharge assembly also includes a first elastic member, which is located on the side of the first valve plate facing away from the transfer valve plate, one end of the first elastic member abuts against the transfer valve plate, and the other end of the first elastic member abuts against the inner wall of the installation cavity; and / or, the discharge assembly also includes a second elastic member, which is located on the side of the second valve plate facing away from the transfer valve plate, one end of the second elastic member abuts against the second valve plate, and the other end of the second elastic member abuts against the inner wall of the installation cavity.

[0008] Furthermore, a first positioning member is provided on one of the first valve disc and the valve seat, a first positioning groove is provided on the other of the first valve disc and the valve seat, and the first positioning member and the first positioning groove are positioned and matched; and / or, a second positioning member is provided on one of the second valve disc and the valve seat, a second positioning groove is provided on the other of the second valve disc and the valve seat, and the second positioning member and the second positioning groove are positioned and matched.

[0009] Furthermore, meshing teeth are provided on the periphery of the material transfer valve plate, and the discharge assembly also includes: a driving part, which is arranged on the frame; a transmission part, which includes a gear and a synchronous belt located on the periphery of the gear and the material transfer valve plate, the gear is rotatably arranged relative to the valve seat, and the gear is driven and connected to the output shaft of the driving part.

[0010] Furthermore, the discharge assembly also includes a signal output component and a signal detection component for detecting the signal output component. The signal output component includes a plurality of signal output ends arranged on the periphery of the output shaft of the driving part, and the plurality of signal output ends are arranged corresponding to the plurality of blanking channels.

[0011] Furthermore, the unloading assembly also includes: a first driving member, which is arranged on the frame; a first rotating shaft, which is rotatably arranged in the unloading bin, one end of the first rotating shaft is drivingly connected to the output shaft of the first driving member, and the other end of the first rotating shaft is provided with a unloading component, which extends into the first discharge pipe, and the outer periphery of the unloading component is provided with a spiral feeding part that cooperates with the inner wall of the first discharge pipe, and the spiral feeding part is spirally arranged around the unloading component.

[0012] Furthermore, the blanking assembly also includes a first stirring member connected to the outer periphery of the first rotating shaft, and the first stirring member is located between the two ends of the first rotating shaft.

[0013] Furthermore, the unloading assembly also includes: a second driving member, which is arranged on the frame; a second rotating shaft, which is rotatably arranged in the unloading bin, and the second rotating shaft is drivingly connected to the output shaft of the second driving member; and a second stirring member, which is connected to the outer periphery of the second rotating shaft.

[0014] Furthermore, the discharge hopper includes a storage shell, a transition connection shell and a discharge shell arranged in sequence, the transition connection shell is provided with an assembly cavity and a transfer cavity located on at least one side of the assembly cavity, the transfer cavity and the assembly cavity are independently arranged, and the transfer cavity is used to connect the storage shell and the discharge shell; wherein, the storage shell is provided with a feed port, and the discharge shell is provided with a first discharge pipe and a second discharge pipe.

[0015] By applying the technical solution of the present invention, by making the discharge area of ​​the first discharge pipe smaller than the discharge area of ​​the second discharge pipe, a large amount of rapid discharge of the second discharge pipe can be achieved, and a small amount of fine discharge of the first discharge pipe can be achieved. When it is necessary to discharge the material, since the second discharge pipe has a larger discharge area, it can quickly provide the required material flow rate. In the initial stage, the transfer valve plate can be moved to a position where the second feed channel is connected to one of the multiple discharge channels to allow the material to enter the discharge channel. Then, the transfer valve plate is moved to move the discharge channel filled with the material to a position connected to the discharge channel. In this way, by using the transfer valve plate to transfer the material multiple times, the material can be discharged efficiently and quickly, and the discharge can be carried out quickly. The cavity volume of the channel is certain, that is, the amount of material transported by each blanking channel each time is also quantitative, which is also conducive to the precise control of the total amount of discharge; when the material discharge operation is about to be completed, the transfer valve plate is located at a position where the first feed channel and the discharge channel are connected through one of the multiple blanking channels, and the first discharge pipe can be connected to the discharge channel through the first feed channel and the blanking channel. The first discharge pipe has a smaller discharge area, can effectively control the flow rate of the material, and can realize micro-fine discharge of the material; in this way, by controlling the movement position of the transfer valve plate, it is possible to flexibly choose whether the material is discharged through the first discharge pipe or the second discharge pipe, thereby achieving the purpose of fast and precise discharge, so as to improve the material discharge accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A structural schematic diagram of an embodiment of the blanking device of the present utility model is shown;

[0018] Figure 2 Shown Figure 1 A sectional view of a blanking device;

[0019] Figure 3 Shown Figure 1 A partial schematic diagram of a blanking device;

[0020] Figure 4 Shown Figure 1 A schematic structural diagram of a discharging assembly of a discharging device;

[0021] Figure 5 Shown Figure 4 A top view of a discharge assembly;

[0022] Figure 6 Shown Figure 4A cross-sectional view of a discharging assembly in one direction;

[0023] Figure 7 Shown Figure 4 A cross-sectional view of the discharge assembly in another direction;

[0024] Figure 8 Shown Figure 3 A schematic structural diagram of one direction of the upper base of the discharge assembly of the blanking device;

[0025] Figure 9 Shown Figure 8 A schematic structural diagram of the upper base in another direction;

[0026] Figure 10 Shown Figure 3 A schematic structural diagram of one direction of the lower base of the discharge assembly of the blanking device;

[0027] Figure 11 Shown Figure 10 A schematic structural diagram of the lower base in another direction;

[0028] Figure 12 Shown Figure 2 A partial schematic diagram of a blanking device;

[0029] Figure 13 Shown Figure 2 A schematic structural diagram of a transition connection shell of a blanking device;

[0030] Figure 14 Shown Figure 13 A top view of the transition shell;

[0031] Figure 15 Shown Figure 2 A schematic structural diagram of a storage shell of a feeding device;

[0032] Figure 16 Shown Figure 15 A cross-sectional view of a storage shell;

[0033] Figure 17 Shown Figure 2 A schematic structural diagram of a turntable motor plate of a blanking device;

[0034] Figure 18 Shown Figure 2 Schematic diagram of the structure of the pump bin partition plate of the unloading device.

[0035] The above drawings include the following reference numerals:

[0036] 4. Motor fixing plate; 6. Turntable motor plate; 8. Upper base; 9. Lower base; 10. Frame; 21. Discharge bin; 22. Feed inlet; 23. First discharge pipe; 24. Second discharge pipe; 25. Storage shell; 251. Discharge piece; 252. Pump bin partition plate; 26. Transition connection shell; 27. Discharge shell; 28. Assembly chamber; 29. ​​Feed chamber; 30. Valve seat; 31. First feed channel; 32. Second feed channel; 33. Discharge channel; 41. Transfer valve disc; 411. Pivot shaft; 412. Valve disc body; 42. Dropping channel; 43. First valve disc ;44. First channel;45. Second valve plate;46. Second channel;47. First elastic member;48. Second elastic member;49. First positioning member;50. First positioning groove;51. Second positioning member;52. Second positioning groove;53. First valve plate groove;54. Second valve plate groove;71. Driving part;72. Gear;73. Synchronous belt;74. Signal detection component;75. Signal output end;81. First driving member;82. First rotating shaft;83. Unloading member;84. First stirring member;91. Second driving member;92. Second rotating shaft;93. Second stirring member. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] like Figures 1 to 18 As shown, an embodiment of the present invention provides a feeding device. The feeding device includes a frame 10; a feeding assembly is arranged on the frame 10, the feeding assembly includes a feeding bin 21 and a feeding port 22, a first discharge pipe 23 and a second discharge pipe 24, all of which are connected to the interior of the feeding bin 21, the discharge area of ​​the first discharge pipe 23 is smaller than the discharge area of ​​the second discharge pipe 24; the discharge assembly includes a valve seat 30 and a transfer valve plate 41, the valve seat 30 is connected to the feeding bin 21, the valve seat 30 has an installation cavity and a first feed channel 31, a second feed channel 32 and a discharge channel 33, all of which are connected to the installation cavity, the first feed channel 31 is connected to the feeding bin 21, and the valve seat 30 has an installation cavity and a first feed channel 31, a second feed channel 32 and a discharge channel 33, The first discharge pipe 23 is connected, the second feed channel 32 is connected to the second discharge pipe 24, the transfer valve plate 41 is movably arranged in the installation cavity, and multiple blanking channels 42 are arranged at intervals on the transfer valve plate 41. The first feed channel 31 and the second feed channel 32 can be selectively connected to any two blanking channels 42 in the multiple blanking channels 42, wherein the discharge channel 33 is arranged corresponding to the first feed channel 31, and along the extension direction of the blanking channel 42, the discharge channel 33 and the first feed channel 31 are respectively located on both sides of the transfer valve plate 41.

[0039] In the above technical solution, by making the discharge area of ​​the first discharge pipe 23 smaller than the discharge area of ​​the second discharge pipe 24, a large amount of rapid discharge of the second discharge pipe 24 can be achieved, and a small amount of fine discharge of the first discharge pipe 23 can be achieved. When it is necessary to discharge the material, since the second discharge pipe 24 has a larger discharge area, it can quickly provide the required material flow. In the initial stage, the transfer valve plate 41 can be moved to a position where the second feed channel 32 is connected to one of the multiple discharge channels 42 to allow the material to enter the discharge channel 42, and then the transfer valve plate 41 is moved to move the discharge channel 42 filled with the material to a position where it is connected to the discharge channel 33. In this way, by using the transfer valve plate 41 to transfer the material multiple times, the material can be discharged efficiently and quickly, and the discharge channel 33 can be connected to the discharge channel 33. The cavity volume of the channel is certain, that is, the amount of material transported each time by each blanking channel is also quantitative, which is also conducive to the precise control of the total amount of discharge; when the material discharge operation is about to be completed, the transfer valve plate 41 is located at a position where the first feed channel 31 and the discharge channel 33 are connected through one of the multiple blanking channels 42, and the first discharge pipe 23 can be connected to the discharge channel 33 through the first feed channel 31 and the blanking channel 42. The first discharge pipe 23 has a smaller discharge area, which can effectively control the flow rate of the material and realize micro-fine discharge of the material; in this way, by controlling the movement position of the transfer valve plate 41, it is possible to flexibly select whether the material is discharged through the first discharge pipe 23 or the second discharge pipe 24, thereby achieving the purpose of fast and precise discharge, so as to improve the discharge accuracy of the material.

[0040] It should be noted that in the embodiments of the present invention, powder generally refers to very fine particles in powder form, and its particle size range can be from microns to tens of microns; granular material refers to an aggregate of larger particles, and its particle size generally ranges from hundreds of microns to several millimeters.

[0041] Preferably, in an embodiment of the present invention, the feed port 22 is located above the first discharge pipe 23 and the second discharge pipe 24, so that the material enters the storage shell 25 from the feed port 22, and the material falls into the first discharge pipe 23 and the second discharge pipe 24 under the action of gravity.

[0042] Preferably, in the embodiment of the present invention, the number of the blanking channels 42 is four, and the four blanking channels 42 are evenly spaced around the rotation axis of the transfer valve plate 41 .

[0043] Preferably, in an embodiment of the present invention, the material transfer valve disc 41 is rotatably arranged in the installation cavity, and a plurality of material discharge channels 42 are arranged at intervals around the rotation axis of the material transfer valve disc.

[0044] In one embodiment, the material transfer valve plate 41 can also be movably arranged in the installation cavity and can be moved by horizontal pushing and pulling. At this time, the number of the material dropping channels on the material transfer valve plate 41 is preferably two.

[0045] like Figures 4 to 7 As shown, in the embodiment of the present invention, the discharge assembly also includes: a first valve disc 43, on which two first channels 44 are provided; a second valve disc 45, on which a second channel 46 is provided. Along the rotation axis (along the extension direction of the blanking channel 42), the first valve disc 43 and the second valve disc 45 are respectively pressed on both sides of the transfer valve disc 41, and the two first channels 44 are respectively connected to the first feed channel 31 and the second feed channel 32, and the second channel 46 is respectively connected to the discharge channel 33.

[0046] In the above technical solution, the first valve disc 43 and the second valve disc 45 are respectively arranged on both sides of the material transfer valve disc 41, and are tightly fitted with the material transfer valve disc 41. In this way, the first valve disc 43 and the second valve disc 45 can be tightly fitted on the material transfer valve disc 41, thereby effectively preventing the leakage of powder between the valve discs, and thus ensuring the sealing and accuracy of the feeding process.

[0047] Specifically, in an embodiment of the present invention, the two first channels 44 are respectively connected to the first feed channel 31 and the second feed channel 32. When the unloading device is in a micro-fine unloading state, the material in the first feed channel 31 can smoothly pass through the first channel 44 into the unloading channel of the transfer valve plate 41. When the unloading device is in a high-efficiency and fast unloading state, the material in the second feed channel 32 can smoothly pass through the first channel 44 into the unloading channel of the transfer valve plate 41.

[0048] Specifically, in an embodiment of the present invention, the second channel 46 is correspondingly connected to the discharge channel 33. When the transfer valve plate 41 rotates and one of the blanking channels 42 is aligned with the discharge channel 33, the material can enter the discharge channel 33 from the blanking channel 42 of the transfer valve plate 41 through the second channel 46 and be discharged through the discharge channel 33.

[0049] like Figure 4 and Figure 7 As shown, in an embodiment of the present invention, the discharging assembly further includes a first elastic member 47, which is located on the side of the first valve disc 43 away from the transfer valve disc 41, one end of the first elastic member 47 abuts against the transfer valve disc 41, and the other end of the first elastic member 47 abuts against the inner wall of the mounting cavity; and / or, the discharging assembly further includes a second elastic member 48, which is located on the side of the second valve disc 45 away from the transfer valve disc 41, one end of the second elastic member 48 abuts against the second valve disc 45, and the other end of the second elastic member 48 abuts against the inner wall of the mounting cavity.

[0050] Through the above arrangement, on the one hand, the first elastic member 47 and the second elastic member 48 act on the first valve disc 43 and the second valve disc 45 respectively, and the elastic force can make the first valve disc 43 and the second valve disc 45 always in close contact with the material transfer valve disc 41, thereby maintaining good sealing during the rotation process, thereby preventing powder from leaking into between the two adjacent valve discs, and thus avoiding affecting the feeding accuracy; on the other hand, as the equipment runs for a long time, the first valve disc 43 and the second valve disc 45 may become not in close contact with the material transfer valve disc 41 due to wear, and the first elastic member 47 and the second elastic member 48 can provide a certain compensation force, which can ensure the sealing between the two adjacent valve discs even after the valve discs are worn, thereby extending the service life and maintenance cycle of the equipment.

[0051] Specifically, in the embodiment of the present invention, the first elastic member 47 and the second elastic member 48 are both springs, and the second elastic member 48 is always in a compressed state.

[0052] like Figure 4 、 Figure 6 、 Figure 9 and Figure 11 As shown, in an embodiment of the present utility model, a first positioning member 49 is provided on one of the first valve disc 43 and the valve seat 30, a first positioning groove 50 is provided on the other of the first valve disc 43 and the valve seat 30, and the first positioning member 49 and the first positioning groove 50 are positioned and matched; and / or, a second positioning member 51 is provided on one of the second valve disc 45 and the valve seat 30, a second positioning groove 52 is provided on the other of the second valve disc 45 and the valve seat 30, and the second positioning member 51 and the second positioning groove 52 are positioned and matched.

[0053] Through the above-mentioned arrangement, the cooperation between the first positioning member 49 and the first positioning groove 50, and the second positioning member 51 and the second positioning groove 52 can prevent the first valve disc 43 and the second valve disc 45 from rotating when the transfer valve disc 41 rotates, thereby avoiding the first valve disc 43 and the second valve disc 45 from being misaligned, and thus ensuring that the two first channels 44 on the first valve disc 43 are respectively connected to the first feed channel 31 and the second feed channel 32, and ensuring that the second channel 46 on the second valve disc 45 can be connected to the discharge channel 33, so as to achieve high-precision unloading.

[0054] It should be noted that in the embodiment of the present invention, the first positioning member 49 only limits the rotation of the first valve disc 43 around the rotation axis of the transfer valve disc 41, and does not limit the movement of the first valve disc 43 on the rotation axis of the transfer valve disc 41; similarly, the second positioning member 51 only limits the rotation of the second valve disc 45 around the rotation axis of the transfer valve disc 41, and does not limit the movement of the second valve disc 45 on the rotation axis of the transfer valve disc 41.

[0055] like Figure 4 and Figure 5 As shown, in the embodiment of the present invention, the outer periphery of the material transfer valve plate 41 is provided with meshing teeth, and the discharge assembly also includes: a driving part 71, which is arranged on the frame 10; a transmission part, including a gear 72 and a synchronous belt 73 located on the outer periphery of the gear 72 and the material transfer valve plate 41, the gear 72 is rotatably arranged relative to the valve seat 30, and the gear 72 is driven and connected to the output shaft of the driving part 71.

[0056] Through the above-mentioned setting, the gear 72 is controlled to rotate by the driving part 71, and the transfer valve plate 41 with meshing teeth can be driven to rotate by the synchronous belt 73 to realize the rotation of the transfer valve plate 41. In this way, the use of the gear 72 and the synchronous belt 73 can improve the transmission efficiency to reduce the energy loss during the transmission process, and the synchronous belt 73 can ensure the transmission synchronization between the transfer valve plate 41 and the gear 72, thereby avoiding slippage and wear during the transmission process to improve the stability and durability of the device.

[0057] Preferably, in an embodiment of the present invention, the valve seat 30 is provided with a receiving groove for receiving the gear 72 , and the gear 72 is rotatably arranged in the receiving groove. There is a gap between the gear 72 and the valve seat 30 to avoid affecting the rotation of the gear 72 .

[0058] Preferably, in the embodiment of the present invention, the driving part 71 can be a motor or other power source, which can adjust the rotation speed and angle of the material transfer valve plate 41 according to a preset program or real-time material demand through electronic control to achieve automated and intelligent material transportation.

[0059] Specifically, in the embodiment of the present invention, Figure 2 As shown, the frame 10 includes a left turntable motor plate 6 connected to the transition connection shell 26, and the driving part 71 is a stepping motor fixedly set on the turntable motor plate 6. The output shaft of the driving part 71 is set vertically downward and fixed on the upper base 8 through a bearing. Openings are provided on the side walls of the upper base 8 and the lower base 9 facing the gear 72, and the synchronous belt 73 is connected to the gear 72 and the transfer valve plate 41 respectively through the opening.

[0060] Specifically, in the embodiment of the present utility model, the valve seat 30 includes an upper base 8 and a lower base 9. The upper base 8 is fixed to the lower bottom surface of the discharge shell 27 by screws. The side of the upper base 8 facing away from the lower base 9 is provided with a first feed channel 31 and a second feed channel 32. The side of the upper base 8 facing the lower base 9 is provided with an upper first valve plate groove 53 and an upper transfer valve plate groove connected to the first valve plate groove 53. The top wall of the first valve plate groove 53 is provided with an upper rotating shaft groove. The first feed channel 31 and the second feed channel 32 are both connected to the first valve plate groove 53; the lower base 9 is fixedly connected to the upper base 8 by screws. The side of the lower base 9 facing away from the upper base 8 is provided with a discharge channel 33. The side of the lower base 9 facing the upper base 8 is provided with a lower transfer valve plate groove and a second valve plate groove 54 connected to the lower transfer valve plate groove. The bottom wall of the second valve plate groove 54 is provided with a lower rotating shaft groove. The transfer valve disc includes a pivot shaft 411 and a valve disc body 412 connected to the outer periphery of the pivot shaft 411. One end of the pivot shaft 411 passes through the first valve disc 43 and rotates with the upper rotation shaft groove. The other end of the pivot shaft 411 passes through the second valve disc 45 and rotates with the lower rotation shaft groove. The first valve disc groove 53 is used to install the first valve disc 43, and the second valve disc groove 54 is used to install the second valve disc 45. The valve disc body 412 is installed in the cavity formed by the upper and lower transfer valve disc grooves. The upper rotation shaft groove, the first valve disc groove 53, the upper transfer valve disc groove, the lower transfer valve disc groove, the second valve disc groove 54, and the lower rotation shaft groove together form the installation cavity.

[0061] like Figure 4 and Figure 5 As shown, in an embodiment of the present invention, the discharge assembly also includes a signal output component and a signal detection component 74 for detecting the signal output component. The signal output component includes a plurality of signal output ends 75 arranged on the periphery of the output shaft of the driving part 71, and the plurality of signal output ends 75 are arranged corresponding to the plurality of blanking channels 42.

[0062] Through the above-mentioned setting, the multiple signal output ends 75 of the signal output component are connected to the output shaft of the driving part 71. When the driving part 71 drives the transfer valve plate 41 to rotate, the multiple signal output ends 75 also rotate accordingly. The signal detection component 74 can detect the position of each signal output end 75 in real time, thereby identifying the rotation angle and position of the transfer valve plate 41 to determine whether the multiple blanking channels 42 on the transfer valve plate 41 are aligned with the discharge channel, so as to achieve precise control of the material falling path and thus accurately control the discharge amount.

[0063] Preferably, in the embodiment of the present invention, the signal detection component 74 is a sensor, and the signal output end is the signal output end 75 .

[0064] like Figure 2 and Figure 12As shown, in the embodiment of the present invention, the unloading assembly also includes: a first driving member 81, which is arranged on the frame 10; a first rotating shaft 82, which is rotatably arranged in the unloading bin 21, and one end of the first rotating shaft 82 is drivingly connected to the output shaft of the first driving member 81, and the other end of the first rotating shaft 82 is provided with a unloading component 83, which extends into the first discharge pipe 23, and the outer periphery of the unloading component 83 is provided with a spiral feeding part that cooperates with the inner wall of the first discharge pipe 23, and the spiral feeding part is spirally arranged around the unloading component 83.

[0065] Through the above-mentioned setting, the spiral feeding part can drive the powder or granular material to move downward, and control the speed and flow rate of the material through the first discharge pipe 23. By controlling the rotation speed and angle of the first rotating shaft 82 through the first driving member 81, the rotation speed and angle of the spiral feeding part can be controlled, thereby realizing precise control of the amount of powder or granular material discharged from the first discharge pipe 23.

[0066] It should be noted that in the embodiment of the present invention, the spiral feeding part has a spiral groove, which can drive the powder or granular material to move downward in a controllable manner until it is discharged from the tail end of the spiral groove. In order to control the accuracy, the gap between the spiral feeding part and the inner wall of the first discharge pipe 23 is small (basically no material leakage). Figure 12 As shown, in the embodiment of the present invention, the blanking assembly further includes a first stirring member 84 connected to the outer periphery of the first rotating shaft 82 , and the first stirring member 84 is located between the two ends of the first rotating shaft 82 .

[0067] Through the above arrangement, the first stirring member 84 can stir the material and transport it to the first discharge pipe 23, thereby preventing the material from agglomerating or bridging, ensuring the fluidity of the material, and making the discharge process smoother, thereby improving the uniformity, continuity and stability of the discharge.

[0068] Preferably, in the embodiment of the present invention, the first stirring member 84 is a stirring fork.

[0069] like Figure 2 and Figure 12 As shown, in an embodiment of the present invention, the unloading assembly also includes: a second driving member 91, which is arranged on the frame 10; a second rotating shaft 92, which is rotatably arranged in the unloading bin 21, and the second rotating shaft 92 is drivingly connected to the output shaft of the second driving member 91; and a second stirring member 93, which is connected to the outer periphery of the second rotating shaft 92.

[0070] Through the above arrangement, the second stirring member 93 can stir the material and transport it to the second discharge pipe 24, thereby preventing the material from agglomerating or bridging, ensuring the fluidity of the material, and making the discharge process smoother, thereby improving the uniformity, continuity and stability of the discharge.

[0071] Preferably, in the embodiment of the present invention, the first rotating shaft 82 is installed in the assembly cavity 28 via a bearing arrangement, and the second rotating shaft 92 is installed in the assembly cavity 28 via a bearing arrangement.

[0072] Furthermore, by controlling the rotation position of the material transfer valve plate 41, the movement of the first rotating shaft 82 and the second rotating shaft 92, it is possible to flexibly select whether the material is discharged from the first discharge pipe 23 or the second discharge pipe 24, thereby achieving the purpose of fast and accurate discharge, thereby improving the discharge accuracy of the material.

[0073] It should be noted that if Figure 2 As shown, in an embodiment of the present invention, the frame 10 includes a motor fixing plate 4 connected to the right side of the transition connection shell 26, and a first driving member 81 is fixedly mounted on the motor fixing plate 4. The first driving member 81 is connected to the top of the first rotating shaft 82 by a synchronous pulley and a synchronous belt. By controlling the number of steps of the first driving member 81 and combining it with the spiral feeding part on the first rotating shaft 82, the discharge amount can be controlled more accurately. The left side of the transition connection shell 26 is connected to the turntable motor plate 6, and the turntable motor plate 6 is provided with a second driving member 91. The second driving member 91 is connected to the upper part of the second rotating shaft 92 by another pair of synchronous pulleys and a synchronous belt. By controlling the number of steps of the second driving member 91, the amount of the portion entering the second feed channel 32 at the lower part of the second discharge pipe 24 can also be accurately controlled. Among them, the first driving member 81 and the second driving member 91 are preferably stepper motors.

[0074] like Figure 2 and Figure 3 As shown, in the embodiment of the present invention, the discharge bin 21 includes a storage shell 25, a transition connection shell 26 and a discharge shell 27 arranged in sequence, the transition connection shell 26 is provided with an assembly cavity 28 and a feed cavity 29 located on at least one side of the assembly cavity 28, the feed cavity 29 is independently arranged with the assembly cavity 28, and the feed cavity 29 is used to connect the storage shell 25 and the discharge shell 27; wherein, the storage shell 25 is provided with a feed port 22, and the discharge shell 27 is provided with a first discharge pipe 23 and a second discharge pipe 24.

[0075] Through the above-mentioned arrangement, the feed port 22 on the storage shell 25 ensures the smooth entry of materials, and the assembly cavity 28 of the transition connection shell 26 provides space for the installation and operation of internal components. The feed cavity 29 serves as a material transmission channel, which is independent of the assembly cavity 28, thereby avoiding the influence of material flow on the operation of internal components and ensuring smooth material transmission. The first discharge pipe 23 and the second discharge pipe 24 on the discharge shell 27 correspond to different discharge paths respectively. The first discharge pipe 23 is used for micro-fine discharge, and the second discharge pipe 24 is used for fast discharge. In this way, the appropriate discharge mode can be selected according to actual needs, thereby improving the adaptability and efficiency of the device.

[0076] Specifically, in an embodiment of the present invention, the internal space at the bottom of the storage shell 25 is configured as an inverted frustum. This configuration utilizes the frustum-shaped side walls to share the material pressure on the upper part of the storage shell 25, thereby reducing the material pressure borne by the components below the bottom of the storage shell 25.

[0077] Specifically, in the embodiment of the present invention, the transition connection shell 26 is cylindrical, and a material flow cavity 29 is provided on both sides of the transition connection shell 26. A discharge piece 251 is provided in the storage shell 25, and the discharge piece 251 is located above the assembly cavity 28 of the transition connection shell 26. The cross-section of the discharge piece 251 is triangular, that is, the shape of the discharge piece 251 is a triangular prism. The discharge piece 251 can guide the material at the lower part of the storage shell 25 so that the material can enter the two material flow cavities 29 to avoid the formation of dead material there. Preferably, the discharge piece 251 and the storage shell 25 are manufactured as one piece.

[0078] Specifically, in an embodiment of the present invention, the discharge hopper 21 further includes a pump hopper partition plate 252. The pump hopper partition plate 252 is connected to the side of the transition connection shell 26 facing away from the storage shell 25. The pump hopper partition plate 252 is located below the assembly chamber 28 and is provided with a slope. The material in the feed chamber 29 falls onto the slope and slides along the slope into the discharge hopper shell 27. The slope can bear and guide the powder falling from the feed chamber 29. In one embodiment, the edge of the pump hopper partition plate 252 can be grooved or perforated to achieve a balance between diversion and flow control.

[0079] Specifically, in the embodiment of the present invention, the interior of the discharge shell 27 is shaped as two boss cavities, and the side walls of the two cavities are connected to each other. The two boss cavities are respectively arranged corresponding to the first discharge pipe 23 and the second discharge pipe 24.

[0080] The working process of this device is as follows:

[0081] When unloading is required, the driving part 71 is first controlled to work through the external controller. When the signal detection component 74 detects one of the multiple signal output ends 75, the driving part 71 is controlled to stop working. At this time, the first feed channel 31 and the second feed channel 32 on the upper base 8 are respectively connected to the two unloading channels 42 on the transfer valve plate 41, and one of the above two unloading channels 42 is also connected to the discharge channel 33 on the lower base 9.

[0082] Next, the second rotating shaft 92 is controlled to operate, and the second rotating shaft 92 drives the second stirring member 93 to rotate. The material in the discharge shell 27 enters the discharge channel 42 below the second discharge pipe 24. The material discharge speed is constant. After a certain period of time, the controller controls the driving unit 71 to operate, and the driving unit 71 drives the transfer valve plate 41 to rotate until the discharge channel 42 below the second discharge pipe 24 changes to below the first discharge pipe 23. The driving unit 71 stops working, and the powder in the discharge channel 42 is discharged directly from the discharge channel 33, while the other empty discharge channel 42 is also transferred to the bottom of the second discharge pipe 24. The material at the second discharge pipe 24 continues to enter the discharge channel 42. The above process is repeated until the weight of the discharged material is basically the same as the required weight (this difference range is set in the controller), and the second rotating shaft 92 and the driving unit 71 stop working. The above-mentioned discharge process can effectively control the accuracy of the discharge while ensuring rapid discharge.

[0083] Next, the controller controls the first drive member 81, which rotates the first rotating shaft 82 to perform micro-fine material discharging. The powdered material discharging path now follows the sequence: storage housing 25 - transition housing 26 - discharging housing 27 - first discharge pipe 23 - first feed channel 31 - discharging channel 42 (corresponding to first feed channel 31) - and discharge channel 33. When the material in the container below discharge channel 33 reaches the required amount, the controller controls the first drive member 81 to stop, halting material discharging from discharge channel 33. This completes the entire weighing and discharging process.

[0084] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: by making the discharge area of ​​the first discharge pipe smaller than the discharge area of ​​the second discharge pipe, a large amount of rapid discharge of the second discharge pipe can be achieved, and a small amount of fine discharge of the first discharge pipe can be achieved. When it is necessary to discharge the material, since the second discharge pipe has a larger discharge area, it can quickly provide the required material flow. In the initial stage, the transfer valve plate can be moved to the position where the second feed channel is connected to one of the multiple blanking channels to allow the material to enter the blanking channel, and then the transfer valve plate is moved to move the blanking channel filled with material to the position connected to the discharge channel. In this way, by using the transfer valve plate to transfer the material multiple times, the material can be achieved The material is discharged efficiently and quickly, and the cavity volume of the discharge channel is certain, that is, the amount of material transported by each discharge channel each time is also quantitative, which is also conducive to the precise control of the total amount of discharge; when the material discharge operation is about to be completed, the transfer valve plate is located at a position where the first feed channel and the discharge channel are connected through one of the multiple discharge channels, and the first discharge pipe can be connected to the discharge channel through the first feed channel and the discharge channel. The first discharge pipe has a smaller discharge area, can effectively control the flow rate of the material, and can realize micro-fine discharge of the material; in this way, by controlling the movement position of the transfer valve plate, it is possible to flexibly choose whether the material is discharged through the first discharge pipe or the second discharge pipe, thereby achieving the purpose of fast and precise discharge, so as to improve the material discharge accuracy.

[0085] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A blanking device, characterized in that: include: Frame (10); A material discharge assembly is arranged on the frame (10), the material discharge assembly comprising a material discharge bin (21), a material feed port (22) both of which are in communication with the interior of the material discharge bin (21), a first discharge pipe (23), and a second discharge pipe (24), wherein the discharge area of ​​the first discharge pipe (23) is smaller than the discharge area of ​​the second discharge pipe (24); A discharge assembly comprises a valve seat (30) and a transfer valve disc (41), wherein the valve seat (30) is connected to the lower hopper (21), the valve seat (30) having an installation cavity and a first feed channel (31), a second feed channel (32) and a discharge channel (33) all communicating with the installation cavity, the first feed channel (31) communicating with the first discharge pipe (23), the second feed channel (32) communicating with the second discharge pipe (24), and the transfer valve disc (41) being movably arranged in the installation cavity. A plurality of blanking channels (42) are arranged at intervals on the material transfer valve plate (41), and the first feed channel (31) and the second feed channel (32) can selectively communicate with any two of the plurality of blanking channels (42), wherein the discharge channel (33) is arranged corresponding to the first feed channel (31), and along the extension direction of the blanking channel (42), the discharge channel (33) and the first feed channel (31) are respectively located on both sides of the material transfer valve plate (41).

2. The blanking device according to claim 1, characterized in that: The discharging assembly further comprises: A first valve plate (43), wherein the first valve plate (43) is provided with two first channels (44); A second valve disc (45) is provided with a second channel (46). Along the extension direction of the blanking channel (42), the first valve disc (43) and the second valve disc (45) are respectively pressed on both sides of the transfer valve disc (41). The two first channels (44) are respectively connected to the first feed channel (31) and the second feed channel (32). The second channel (46) is connected to the discharge channel (33).

3. The blanking device according to claim 2, characterized in that: The discharge assembly further comprises a first elastic member (47), the first elastic member (47) being located on a side of the first valve disc (43) facing away from the material transfer valve disc (41), one end of the first elastic member (47) being in contact with the material transfer valve disc (41), and the other end of the first elastic member (47) being in contact with an inner wall of the mounting cavity; and / or, The discharge assembly further includes a second elastic member (48), which is located on the side of the second valve plate (45) facing away from the transfer valve plate (41), one end of the second elastic member (48) abuts against the second valve plate (45), and the other end of the second elastic member (48) abuts against the inner wall of the mounting cavity.

4. The blanking device according to claim 2, characterized in that: A first positioning member (49) is provided on one of the first valve disc (43) and the valve seat (30), a first positioning groove (50) is provided on the other of the first valve disc (43) and the valve seat (30), and the first positioning member (49) and the first positioning groove (50) are positioned and matched; and / or, A second positioning member (51) is provided on one of the second valve disc (45) and the valve seat (30), and a second positioning groove (52) is provided on the other of the second valve disc (45) and the valve seat (30), and the second positioning member (51) and the second positioning groove (52) are positioned and matched.

5. The blanking device according to claim 1, characterized in that: The outer periphery of the material transfer valve plate (41) is provided with meshing teeth, and the material discharging assembly further comprises: A driving unit (71) is provided on the frame (10); The transmission part includes a gear (72) and a synchronous belt (73) located on the periphery of the gear (72) and the material transfer valve plate (41), wherein the gear (72) is rotatably arranged relative to the valve seat (30), and the gear (72) is drivingly connected to the output shaft of the driving part (71).

6. The blanking device according to claim 5, characterized in that: The discharge assembly further includes a signal output component and a signal detection component (74) for detecting the signal of the signal output component, wherein the signal output component includes a plurality of signal output ends (75) arranged on the periphery of the output shaft of the driving part (71), and the plurality of signal output ends (75) are arranged corresponding to the plurality of the blanking channels (42).

7. The blanking device according to any one of claims 1 to 6, characterized in that: The blanking assembly also includes: A first driving member (81) is provided on the frame (10); A first rotating shaft (82) is rotatably arranged in the discharge bin (21), one end of the first rotating shaft (82) is drivingly connected to the output shaft of the first driving member (81), and the other end of the first rotating shaft (82) is provided with a discharge component (83), and the discharge component (83) extends into the first discharge pipe (23), and the outer periphery of the discharge component (83) is provided with a spiral feeding part that cooperates with the inner wall of the first discharge pipe (23), and the spiral feeding part is spirally arranged around the discharge component (83).

8. The blanking device according to claim 7, characterized in that: The blanking assembly further includes a first stirring member (84) connected to the outer periphery of the first rotating shaft (82), and the first stirring member (84) is located between the two ends of the first rotating shaft (82).

9. The blanking device according to any one of claims 1 to 6, characterized in that: The blanking assembly further comprises: A second driving member (91) is provided on the frame (10); a second rotating shaft (92) rotatably disposed in the lower hopper (21), the second rotating shaft (92) being drivingly connected to the output shaft of the second driving member (91); The second stirring member (93) is connected to the outer periphery of the second rotating shaft (92).

10. The blanking device according to any one of claims 1 to 6, characterized in that: The discharge bin (21) comprises a storage shell (25), a transition connection shell (26) and a discharge shell (27) which are arranged in sequence, the transition connection shell (26) is provided with an assembly cavity (28) and a material transfer cavity (29) located at least on one side of the assembly cavity (28), the material transfer cavity (29) is independently provided with the assembly cavity (28), and the material transfer cavity (29) is used to connect the storage shell (25) and the discharge shell (27); The material storage shell (25) is provided with the material feed port (22), and the material discharge shell (27) is provided with the first material discharge pipe (23) and the second material discharge pipe (24).

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