CN114588833A - Accurate automatic blending of tealeaves is equipped based on automatic weighing - Google Patents
Accurate automatic blending of tealeaves is equipped based on automatic weighing Download PDFInfo
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- CN114588833A CN114588833A CN202210235571.8A CN202210235571A CN114588833A CN 114588833 A CN114588833 A CN 114588833A CN 202210235571 A CN202210235571 A CN 202210235571A CN 114588833 A CN114588833 A CN 114588833A
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- 238000005303 weighing Methods 0.000 title claims abstract description 69
- 238000002156 mixing Methods 0.000 title claims description 6
- 241001122767 Theaceae Species 0.000 claims abstract description 159
- 238000007599 discharging Methods 0.000 claims abstract description 42
- 230000001360 synchronised effect Effects 0.000 claims abstract description 26
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 28
- 230000007246 mechanism Effects 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 23
- 238000013016 damping Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
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- 238000013461 design Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
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- 239000004615 ingredient Substances 0.000 description 2
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- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000009776 industrial production Methods 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Abstract
A tea precise automatic batching device based on automatic weighing comprises an automatic weighing unit, a bidirectional synchronous telescopic conveying unit and a discharging unit, wherein the automatic weighing unit takes a tension spring as a force sensor and realizes the opening and closing of a tea discharging door by utilizing a double-spiral shaft; the bidirectional synchronous telescopic conveying unit adopts an electric push rod to drive the left (right) sliding support to move, conveying belt rollers on the bidirectional synchronous telescopic conveying unit are arranged in a vertically staggered mode, the left (right) sliding support is guaranteed through the design of a unique structure, the unique design guarantees that the upper-layer conveying belt stretches out and contracts at each moment, the sum of the center distances of the belt rollers is kept unchanged, the tension degree of the sliding conveying belt of the left (right) sliding support is unchanged, and automatic batching is achieved through bidirectional telescopic conveying and forward and reverse rotation of a conveying belt motor.
Description
Technical Field
The invention relates to the field of tea processing equipment, in particular to accurate and automatic tea batching equipment based on automatic weighing.
Background
In order to meet the requirements of tea continuous production process and processing capacity, single tea making machines are usually connected in series in a tea processing production line. The feeding hoppers of the single machines at different positions are required to be linearly arranged and have a certain distance, so that the materials with the same weight can be conveniently supplied, and the problems of automatic weighing, material distribution and material proportioning are mainly solved technically.
The above-mentioned automatic weighing unit that equips of current production line adopts industrial electronic belt scale, and its principle is that the real-time weight of material on the weight sensor on-line measuring belt through the belt below combines the rotational speed information of belt to obtain average flow through the integral operation, and required material weight is controlled to rethread belt linear velocity information. For the industrial production with uniform flow, the accuracy of the method can reach the design requirement, but the tea leaves of the tea production line belong to agricultural materials and are required by the tea making process, the process time of each different tea leaf processing procedure is different, the uniform flow of the production line is difficult to achieve, the method has high cost and large error, is not suitable, and can cause the weight of the tea leaf materials distributed to each single machine connected in series to be different, thereby causing the tea leaf processing quality to be reduced. In the current tea batching process, the weighed tea is mostly finished by adopting a batching trolley and a conveying belt above the batching trolley during automatic batching, a corresponding track is required to be equipped for the trolley to run, and a position sensor is required to be equipped for positioning, so that the equipment cost is high, the equipment cost is too complex, the control procedure is complex, the number of parts is too large, and the reliability is poor.
Disclosure of Invention
In order to overcome the defects that the tea leaf proportioning mode in the prior art is low in precision and high in cost and is difficult to meet the tea leaf production requirement, the invention provides automatic weighing-based accurate automatic tea leaf proportioning equipment.
The invention adopts the following technical scheme:
an automatic weighing-based accurate automatic tea leaf proportioning device, comprising: the device comprises a frame, a feed hopper, a main control module, a discharge control module, a conveying belt, a bidirectional synchronous telescopic mechanism and a plurality of discharge hoppers; the feeding hopper, the bidirectional synchronous telescopic mechanism, the conveying belt and the discharging hoppers are all arranged on the rack;
the bottom of the discharging hopper is provided with a tea discharging door for controlling discharging, the discharging control module comprises an automatic weighing unit and a tea discharging door driving unit, the automatic weighing unit is used for acquiring the weight of tea in the feeding hopper, and the tea discharging door driving unit is used for driving the tea discharging door to open and close;
the bidirectional synchronous telescoping mechanism is arranged on the rack, the conveying belt is arranged on the bidirectional synchronous telescoping mechanism, the bidirectional synchronous telescoping mechanism is used for adjusting the positions of the feeding ends on the left side and the right side of the conveying belt along the conveying direction of the conveying belt under the condition that the original length of the conveying belt is unchanged, the conveying belt is positioned below the feeding hopper, and the feeding hopper discharges materials to the conveying belt through the tea discharging door;
the main control module is respectively in signal connection with the automatic weighing unit, the tea outlet door driving unit and the bidirectional synchronous telescopic mechanism.
Preferably, the bidirectional synchronous telescopic mechanism comprises a main support frame, two sliding support frames and a length adjusting part;
the main support frame is arranged on the rack, the two sliding support frames are horizontally and slidably arranged on the rack, and the two sliding support frames are respectively positioned at two ends of the main support frame and are in sliding fit with the main support frame; the main support frame and the two sliding support frames are matched with each other to support the conveying belt; the length of the material bearing surface of the conveying belt is changed along with the relative motion of the two sliding support frames, the length adjusting part is arranged on the rack and used for driving the two sliding support frames to move in the opposite direction.
Preferably, the main support frame comprises a support plate, the support plate is horizontally arranged on the rack, the two sliding support frames are respectively provided with a left upper roller and a right upper roller, and the left upper roller and the right upper roller are used for being matched with the support plate to support the conveyer belt and determine a conveyer belt bearing surface;
a conveying belt trigger part is arranged on any sliding support frame, N conveying trigger modules are arranged on the main support frame, and the N conveying trigger modules are all positioned on the movement track of the conveying belt trigger part;
the number of the discharge hoppers is 2N, the two sliding support frames are symmetrically arranged, a symmetrical plane between the two sliding support frames is used as a central plane, every two discharge hoppers symmetrical about the central plane are used as a pair, and the conveying trigger modules correspond to the N pairs of discharge hoppers one by one; the main control module is used for controlling the conveyer belt to rotate forward and backward to discharge materials to the discharge hoppers at the two ends of the bearing surface of the conveyer belt when receiving the positioning signal of the conveying trigger module.
Preferably, the main support frame further comprises a first side plate and a second side plate; the first side plate and the second side plate are both vertically arranged on the rack, and the first side plate and the second side plate are positioned on two sides of the supporting plate; each sliding support frame is vertically provided with a first extension side plate and a second extension side plate; the first extension side plate is in sliding fit with the first side plate or the support plate, and the second extension side plate is in sliding fit with the second side plate or the support plate;
the first side plate and the two first extension side plates are positioned on one side of the bearing surface of the conveying belt, and the second side plate and the two second extension side plates are positioned on the other side of the bearing surface of the conveying belt.
Preferably, a gap for accommodating the first extension side plate is arranged between the two ends of the support plate and the first side plate, and a gap for accommodating the second extension side plate is arranged between the two ends of the support plate and the second side plate; the first extending side plate is provided with a first sliding chute, and the second extending side plate is provided with a second sliding chute; the end parts of the supporting plates are inserted into the corresponding first sliding grooves and the corresponding second sliding grooves so as to be in sliding fit with the first extension side plates and the second extension side plates; the sliding support frame further comprises an extension support plate horizontally arranged between the first extension side plate and the second extension side plate, and the extension support plate is attached to the lower surface of the support plate to move in the sliding process of the sliding support frame relative to the main support frame.
Preferably, the bidirectional synchronous telescopic mechanism further comprises a left middle roller, a right middle roller, a left lower roller, a right lower roller and a conveying belt driving motor; the left middle roller and the right middle roller are respectively arranged on the two sliding support frames, and the left lower roller and the right lower roller are both arranged on the rack and are symmetrical about a central plane; the conveying belt is wound by the left upper roller, the left middle roller, the left lower roller, the right middle roller and the right upper roller; the length adjusting part comprises two electric push rods, the two electric push rods respectively correspond to the two sliding support frames, and two ends of each electric push rod are respectively connected with the rack and the corresponding sliding support frame; the main control module is respectively connected with two electric push rods and a conveying belt driving motor, the conveying belt driving motor is used for driving a driving roller to rotate positively and negatively, the driving roller drives the conveying belt to move, and the driving roller is any one of a left upper roller, a left middle roller, a left lower roller, a right middle roller and a right upper roller.
Preferably, the automatic weighing unit comprises a damping part and a weighing slider, the damping part is arranged between the rack and the feeding hopper, and the damping part stretches and retracts in the vertical direction along with the weight of the feeding hopper; the weighing slide block is arranged on the rack in a position adjustable manner in the vertical direction; the feeding hopper and the weighing sliding block are respectively provided with a first trigger piece and a first trigger module, the first trigger piece moves up and down along with the feeding hopper, the first trigger module is located on a motion track of the first trigger piece, the first trigger piece and the first trigger module emit weighing signals when contacting, and the main control module is used for acquiring the weighing signals.
Preferably, the feeding hopper consists of an upper hopper and a lower hopper, the upper hopper is a two-end communicated structure formed by stretching a closed structure on a horizontal plane in the vertical direction, the upper end of the lower hopper is in seamless connection with the upper hopper, and a discharge port of the feeding hopper is arranged at the bottom of the lower hopper;
the frame is provided with a closed lantern ring the inner periphery of which is matched with the outer periphery of the upper bucket, and the upper bucket is arranged on the inner periphery of the closed lantern ring and is in clearance fit with the closed lantern ring; the damping portion comprises a plurality of vertical settings and the extension spring that distributes in last fill periphery, and closed lantern ring and feeder hopper are connected respectively to the both ends of each extension spring.
Preferably, the tea outlet door comprises a first door leaf and a second door leaf, and the first door leaf and the second door leaf are slidably arranged at a discharge port of the feed hopper; the tea outlet door driving unit comprises a tea outlet support frame, a second triggering module, a tea outlet door triggering piece, a third triggering module and a tea outlet door driving part; the tea discharging door driving part is used for driving the first door leaf and the second door leaf to move reversely;
the second trigger module and the third trigger module are both arranged on the tea discharging support frame; the tea outlet door trigger piece moves synchronously with the first door leaf or the second door leaf, and the tea outlet door trigger piece moves synchronously with the second door leaf; when the tea outlet door is closed, the tea outlet door trigger part is contacted with the second trigger module and generates a door closing state signal; when the tea outlet door is completely opened, the tea outlet door trigger part is contacted with the third trigger module and generates a door opening state signal; the main control module is used for receiving a door closing state signal and a door opening state signal;
the feed hopper is provided with an optical detection switch, light-transmitting glass and a reflecting plate which are collinear; the light detection switch is positioned outside the feed hopper, the reflecting plate is arranged on the inner wall of the feed hopper, the light-transmitting glass is arranged on the side wall of the feed hopper, the emitted light of the light detection switch penetrates through the light-transmitting glass and then is incident on the reflecting plate, and the reflected light of the reflecting plate penetrates through the light-transmitting glass and is received by the light detection switch; the reflecting plate and the light-transmitting glass are positioned on two sides of the discharge hole of the feed hopper; the main control module is connected with the light detection switch and judges whether the feed hopper is emptied or not according to the detection result of the light detection switch.
Preferably, the tea outlet door driving part includes: the tea outlet motor, the double-screw lead screw, the left nut and the right nut; the double-screw lead screw is rotationally arranged on the tea discharging support frame, and the rotating directions of threads at two ends of the double-screw lead screw are opposite; the left nut and the right nut are sleeved on the double-screw lead screw and are respectively matched with threads at two ends of the double-screw lead screw; the left nut and the right nut are respectively connected with the first door leaf and the second door leaf; the tea outlet motor is arranged on the tea outlet support frame and used for driving the double-screw rod to rotate.
The invention has the advantages that:
(1) through the length switching of the bearing surface of the conveying belt or the matching of the length and the direction, the tea leaves are conveyed to the discharging hoppers at a plurality of different positions through one conveying belt, the accurate batching of a plurality of single tea leaves is realized, the structure is simple, the number of parts is small, the reliability is improved, and the cost is reduced. The relative position of the discharging ends at the two sides of the conveying belt is adjusted under the condition that the total length of the conveying belt is not changed, namely the total length of the conveying belt is adjusted, so that the discharging ends of the conveying belt are adjusted under the condition that the tension degree of the conveying belt is not changed, and the stability of material conveying is ensured.
(2) The sliding support frame and the main support frame are matched to ensure the stability of the bearing surface of the conveying belt in the length deformation process, so that the stability and reliability of tea conveying are ensured. Meanwhile, the length switching flexibility and stability of the bearing surface of the conveying belt are ensured.
(3) Through carrying trigger module's setting, realized the automatic matching of conveyer belt discharge end with go out the hopper, guaranteed the automatic accurate batching of the intellectuality of many tealeaves units. And through the symmetrical arrangement of the discharge hoppers, the two discharge hoppers are positioned through one conveying trigger module, so that the cost is saved, meanwhile, the adjusting stroke of the conveying belt is reduced, and the working efficiency and the calculation precision are improved.
(4) The side plates and the extension side plates can prevent tea leaves on the conveying belt from falling from the side face, and reliability of tea leaf conveying on the conveying belt in the deformation process of the conveying belt is guaranteed. The first extension curb plate sets up the inboard at the first curb plate, and the second extension curb plate sets up the inboard at the second curb plate. So, the conveyer belt is pressed close to more to first extension curb plate and second extension curb plate, has improved conveyer belt extension's side protection.
(5) In the invention, the left lower roller and the right lower roller which are arranged up and down in a staggered way are fixed on the frame through the left (right) upper roller, the left (right) middle roller and the left (right) lower roller, so that the sum of the central distances between the left upper roller, the right middle roller, the right lower roller, the left middle roller and the left upper roller in the winding direction of the conveyer belt is kept unchanged, and the tensity of the conveyer belt is unchanged in the sliding process of the left-right sliding support frame.
(6) According to the invention, the left upper roller and the left middle roller are relatively static on the sliding support frame on the left side, the right upper roller and the right middle roller are relatively static on the sliding support frame on the right side, and the two sliding support frames move symmetrically in the horizontal direction, so that the stability of the conveying belt on the sliding support frame is ensured, and the reliability of the length adjustment of the conveying belt and the stability of material conveying are further ensured.
(7) In the invention, the lowest point of the left upper roller, the highest point of the left middle roller, the lowest point of the right upper roller and the highest point of the right middle roller are all positioned on the same horizontal plane, the lowest point of the left middle roller, the highest point of the left lower roller, the lowest point of the right middle roller and the highest point of the right lower roller are all positioned on the same horizontal plane, the lowest point of the left lower roller and the lowest point of the right lower roller are positioned on the same horizontal plane, so that the level of a conveying belt between any two rollers is ensured, and the tightness in the adjusting process of the conveying belt is further ensured to be unchanged.
(8) Due to the arrangement of the damping part, the feed hopper can be suspended at different heights according to the weight of the filled tea. The adjustment of the weight threshold represented by the weighing signal is realized through the position adjustment of the weighing slide block in the vertical direction, and the requirements of different feeding materials are met. The main control module can control the feeding hopper to stop feeding when acquiring the weighing signal, so that the feeding hopper can accurately control the feeding weight. The damping portion adopts the extension spring along last fill periphery circumference evenly distributed, has guaranteed the evenly distributed of the damping force that the feeder hopper received in circumference, is favorable to avoiding the emergence of the circumstances such as feeder hopper slope.
(9) In the invention, the state of the tea outlet door is monitored by the trigger piece and the trigger module, so that the real-time monitoring and the reliability of the feeding and discharging of the feeding hopper are ensured. The tea outlet door is driven by double helix, the structure is simple and the cost is low.
(10) According to the invention, the intelligent control of feeding and discharging in the whole batching state is realized through the main control module, and efficient and accurate batching of a plurality of tea processing devices is ensured.
(11) In the invention, each discharge hopper is provided with an n-type flow guide part, each n-type flow guide part consists of three vertically arranged plates, and the n-type flow guide part forms a semi-surrounding structure for tea falling on a conveying belt so as to avoid scattering of the tea.
Drawings
FIG. 1 is an overall view;
FIG. 2 is a view showing another state of the conveyer belt;
FIG. 3 is a belt retraction configuration;
FIG. 4 is an expanded view of the conveyor belt;
FIG. 5 is a view showing the construction of an automatic weighing unit according to the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a view of the closing structure of the tea outlet door;
FIG. 8 is a view of the opening structure of the tea outlet door;
FIG. 9 is a schematic view of the position of the reflector plate;
FIG. 10 is a schematic view of the position of the light detection switch;
FIG. 11 is a view of the frame structure;
FIG. 12 is a view of the structure of the sliding support;
FIG. 13 is a partial structure view of the main support frame;
FIG. 14 is an assembled structure of the main supporting frame and the sliding supporting frame;
FIG. 15 is a view showing an assembled structure of the power putter;
FIG. 16 is an assembled view of the sliding support;
FIG. 17 is an assembled view of the main support frame;
fig. 18 is a superposed structure view of the sliding support frame and the main support frame.
1. A frame; 11. a collar; 12. a U-shaped groove; 13. a graduated scale;
2. a feed hopper; 21. a light detection switch; 22. a light-transmitting glass; 23. a reflective plate; 3. a conveyor belt; 5. a discharge hopper; 51. an n-type flow guide member;
bidirectional synchronous telescopic mechanism
41. A main supporting frame; 411. a support plate; 412. a first side plate; 413. a second side plate;
42. a sliding support frame; 420. a strip-shaped groove; 421. a left upper roller; 422. a right upper roller; 423. a first elongated side panel; 4230. a first chute; 424. a second elongated side panel; 4240. a second chute; 425. extending the support plate;
43. a length adjustment unit; 431. an electric push rod;
44. a left middle roller; 45. a right middle roller; 46. a left lower roll; 47. a right lower roller; 48. a conveyor belt driving motor;
the discharging control module:
an automatic weighing unit: 61. a damping part; 62. weighing slide block
A tea outlet door driving unit; 71. a tea discharging support frame; 72. a tea outlet door driving part; 721. a tea outlet motor; 722. double-helix screw rod; 723. a left nut; 724. a right nut;
8. a tea outlet door; 81. a first door leaf; 82. a second door leaf;
42a, a conveyor belt trigger; 1a, a conveying triggering module;
2b, a first trigger piece; 62b, a first trigger module;
71c, a second trigger module; 71d, a third trigger module; 8cd and a tea outlet door trigger piece.
Detailed Description
Accurate automatic blending of tealeaves is equipped based on automatic weighing
Referring to fig. 1, 2 and 3, the present embodiment provides an automatic weighing-based precise automatic tea dispensing equipment, including: frame 1, feeder hopper 2, host system, ejection of compact control module, conveyer belt 3, two-way synchronous telescopic machanism and a plurality of play hopper. Feed hopper 2, conveyer belt 3 and a plurality of play hopper 5 all set up on frame 1.
Go out 5 bottoms of hopper and be equipped with the tea-out door 8 that is used for control to arrange the material, ejection of compact control module includes automatic weighing unit and tea-out door drive unit, and automatic weighing unit is arranged in acquireing the tealeaves weight in feeder hopper 2, and tea-out door drive unit is used for driving tea-out door 8 and opens and shuts. Through the cooperation of the tea-out door driving unit and the automatic weighing unit, the tea-out door 8 can be controlled to discharge materials with set weight, namely tea.
The conveyer belt 3 is located feeder hopper 2 below, and feeder hopper 2 is arranged to conveyer belt 3 through going out tea 8. The length of the conveyer belt 3 in the conveying direction is adjustable, and along with the change of the conveying direction and the length of the conveyer belt 3, the conveyer belt 3 is provided with a conveying state which is in one-to-one correspondence with each discharge hopper 5. The bidirectional synchronous telescopic mechanism is used for adjusting the conveying state of the conveying belt 3, so that the conveying belt 3 discharges materials to the discharging hopper 5 corresponding to the conveying state.
In the embodiment, through the length switching of the carrying surfaces of the conveying belts 3 or the matching of the length and the direction, tea leaves are conveyed to the discharging hoppers 5 at a plurality of different positions through one conveying belt 3, so that the accurate batching of a plurality of single tea leaves is realized, the structure is simple, the number of parts is small, the reliability is improved, and the cost is reduced. The length of the bearing surface of the conveying belt 3 refers to the length between the blanking ends at two sides of the conveying belt 3, in the embodiment, the two-way synchronous telescopic mechanism keeps the total length of the conveying belt 3 unchanged when the blanking end positions at two sides of the conveying belt 3 are adjusted, so that the tensity of the conveying belt 3 is kept unchanged in the process of adjusting the blanking end positions, the work of the conveying belt 3 is more stable, and the influence of the adjustment of the blanking end positions of the conveying belt 3 on the feeding accuracy is avoided.
The main control module is respectively in signal connection with the automatic weighing unit, the tea discharging door driving unit and the bidirectional synchronous telescopic mechanism, and is used for controlling the conveying belt 3 to realize each conveying state one by one, and controlling the tea discharging door 8 to open the material, namely tea, with set weight to the corresponding tea discharging hopper 5 in each conveying state according to the weighing signal of the automatic weighing unit through the tea discharging door driving unit.
Bidirectional synchronous telescopic mechanism
Referring to fig. 2 and 3, the bidirectional synchronous telescoping mechanism includes a main support frame 41, two sliding support frames 42, a length adjusting portion 43, a left middle roller 44, a right middle roller 45, a left lower roller 46, a right lower roller 47, and a conveyor belt driving motor 48.
Referring to fig. 11 to 18, the main support frame 41 is disposed on the machine frame 1, two sliding support frames 42 are horizontally and slidably disposed on the machine frame 1, and the two sliding support frames 42 are respectively disposed at two ends of the main support frame 41 and are slidably engaged with the main support frame 41. The main support frame 41 and the two sliding support frames 42 cooperate with each other for supporting the conveyor belt 3. The length of the material carrying surface of the conveyor belt 3 changes with the relative movement of the two sliding support frames 42. The length adjusting part 43 is arranged on the frame 1, and the length adjusting part 43 is used for driving the two sliding support frames 42 to move reversely. Thus, the length L of the material carrying surface of the conveyor belt 3 has a plurality of states, and the length of the conveyor belt portion supported by the main support frame 41 is denoted as L1, and the length of the conveyor belt portion supported by the sliding support frame 42 is denoted as L2, and then two length states of L are: l ═ L1; l is L1+2 × L ', where L ' represents the length of the sliding support frame 42 extending out of the main support frame 41, and 0< L ' ≦ L2. That is, the length of the conveyor belt 3 in this embodiment is M, and M is the number of values L'.
Referring to fig. 17, in this embodiment, the main supporting frame 41 includes a supporting plate 411, the supporting plate 411 is horizontally disposed on the frame 1, two sliding supporting frames 42 are respectively provided with a left upper roller 421 and a right upper roller 422, the conveyer belt 3 sequentially strides over the left upper roller 421, the supporting plate 411 and the right upper roller 422, the sliding supporting frames 42 slide to adjust a relative distance between the left upper roller 421 and the right upper roller 422, and a length L of a bearing surface of the conveyer belt 3 is determined by the relative distance between the left upper roller 421 and the right upper roller 422.
Referring to fig. 16, in the present embodiment, a conveyor belt trigger 42a is disposed on any one of the sliding support frames 42, N conveyor trigger modules 1a are disposed on the main support frame 41, and the N conveyor trigger modules 1a are all located on a movement track of the conveyor belt trigger 42 a. In this way, the main control module can know the extension length of the sliding support frame 42 according to the trigger signal of the conveying trigger module 1 a. In the present embodiment, the conveyance triggering module 1a employs a travel switch, and generates a signal when the conveyance triggering module 1a is abutted by the conveyor belt triggering portion 42 a.
In this embodiment, the number of the discharge hoppers 5 is 2N, the two sliding support frames 42 are symmetrically arranged, a symmetric plane between the two sliding support frames 42 is used as a central plane, every two discharge hoppers 5 symmetric with respect to the central plane are used as a pair, and the conveying trigger modules 1a are in one-to-one correspondence with the N pairs of discharge hoppers 5. When the conveyor belt triggering part contacts with any one of the conveying triggering modules 1a to generate a positioning signal, a pair of discharge hoppers 5 corresponding to the conveying triggering modules 1a are respectively positioned at two ends of the bearing surface of the conveyor belt 3; the main control module is used for controlling the conveyer belt 3 to rotate forward to discharge materials to the discharge hopper 5 at one end of the bearing surface of the conveyer belt 3 when receiving the positioning signal, and controlling the conveyer belt 3 to rotate backward to discharge materials to the discharge hopper 5 at the other end of the bearing surface of the conveyer belt 3.
In this embodiment, through carrying the setting of trigger module 1a, realized 3 discharge ends of conveyer belt and 5 automatic matchings of play hopper, guaranteed the automatic accurate batching of the intellectuality of many tealeaves units.
Referring to fig. 1, each discharge hopper 5 is provided with an n-type flow guide 51, the n-type flow guide 51 is composed of three vertically arranged plates, and the n-type flow guide 51 forms a semi-surrounding structure for tea leaves falling on the conveyor belt to prevent the tea leaves from scattering.
And a bearing seat is arranged on the sliding support frame 42, and a bearing for supporting the left upper roller 421/the left middle roller 44/the right upper roller 422/the right middle roller 45 is arranged on the bearing seat. In the present embodiment, the relative positions of the upper left roller 421 and the middle left roller 44 on the left sliding support 42 are adjustable to adjust the tension degree of the conveyor belt 3, and similarly, the relative positions of the upper right roller 422 and the middle right roller 45 on the right sliding support 42 are adjustable. Specifically, in the present embodiment, the sliding support frame 42 is provided with the strip-shaped groove 420, and the bearing seat is fixed on the sliding support frame by matching with the strip-shaped groove 420 through the locking member, so that the tensioning adjustment of the conveyor belt 3 can be realized only by adjusting the installation position of the bearing seat along the strip-shaped groove 420.
Referring to fig. 17, in the present embodiment, the main support frame 41 further includes a first side plate 412 and a second side plate 413. The first side plate 412 and the second side plate 413 are both vertically arranged on the rack 1, and the first side plate 412 and the second side plate 413 are positioned at two sides of the supporting plate 411; each sliding support frame 42 is vertically provided with a first extension side plate 423 and a second extension side plate; the first extension side plate 423 is slidably fitted to the first side plate 412 or the support plate 411, and the second extension side plate 424 is slidably fitted to the second side plate 413 or the support plate 411.
The first side plate 412 and the two first elongated side plates 423 are located on one side of the carrying surface of the belt 3, and the second side plate 413 and the two second elongated side plates 424 are located on the other side of the carrying surface of the belt 3.
So, first curb plate 412 and two first extension curb plates 423 constitute first side fender portion, and second curb plate 413 and two second extension curb plates 424 constitute second side fender portion, and the tealeaves from the side that can avoid on the conveyer belt 3 of the relative setting of first side fender portion and second side fender portion drops, has guaranteed the reliability of tealeaves transportation on the conveyer belt 3 deformation in-process conveyer belt 3.
Specifically, in the present embodiment, a gap for accommodating the first extension side plate 423 is provided between the two ends of the support plate 411 and the first side plate 412, and a gap for accommodating the second extension side plate 424 is provided between the two ends of the support plate 411 and the second side plate 413. That is, the first extension side plate 423 is disposed inside the first side plate 412, and the second extension side plate 424 is disposed inside the second side plate 413. Thus, the first extension side plate 423 and the second extension side plate 424 are closer to the conveyor belt 3, and the side protection of the extension portion of the conveyor belt 3 is improved. The first extending side plate 423 is provided with a first sliding groove 4230, and the second extending side plate 424 is provided with a second sliding groove 4240; the end of the support plate 411 is inserted into the corresponding first and second slide slots 4230 and 4240 to be slidably fitted with the first and second extension side plates 423 and 424. That is, during the sliding of the sliding support frame 42 relative to the main support frame 41, the first extension side plate 423 moves synchronously with the corresponding sliding support frame 42, and the second extension side plate 424 moves synchronously with the corresponding sliding support frame 42, so that the sliding of the first extension side plate 423 and the second extension side plate 424 relative to the support plate 411 is realized.
Specifically, in the present embodiment, the sliding support frame 42 further includes an extension support plate 425 horizontally disposed between the first extension side plate 423 and the second extension side plate 424, and during the sliding process of the sliding support frame 42 relative to the main support frame 41, the extension support plate 425 moves in contact with the lower surface of the support plate 411. The arrangement of the extension support plate 425 provides support for the extended conveyor belt 3, ensuring stable operation of the conveyor belt.
The left middle roller 44 and the right middle roller 45 are respectively arranged on the two sliding support frames 42, specifically, the left middle roller 44 and the left upper roller 421 are arranged on the left sliding support frame 42, and the right middle roller 45 and the right upper roller 422 are arranged on the right sliding support frame 42. The lower left roller 46 and the lower right roller 47 are provided on the machine frame and are symmetrical about the center plane. The conveyor belt 3 is wound around the upper left roller 421, the middle left roller 44, the lower left roller 46, the lower right roller 47, the middle right roller 45, and the upper right roller 422. In this way, the left middle roller 44 and the left upper roller 421 move along with the left sliding support frame 42, and the right middle roller 45 and the right upper roller 422 move along with the right sliding support frame 42, so that the relative distance between the left upper roller 421 and the right upper roller 422 is adjusted.
The length adjustment part comprises two electric push rods 431, the two electric push rods 431 respectively correspond to the two sliding support frames 42, and two ends of the electric push rods 431 are respectively connected with the rack 1 and the corresponding sliding support frames 42, so that the sliding support frames 42 are driven to slide relative to the rack 1 through the extension and contraction of the electric push rods 431. Specifically, the electric push rod 431 may be hinged to the frame 1 and the sliding support frame 42. The main control module is respectively connected with the two electric push rods 431 and the conveying belt driving motor 48, the conveying belt driving motor 48 is used for driving the driving roller to rotate forward and backward, and the driving roller is any one of the upper left roller 421, the middle left roller 44, the lower left roller 46, the lower right roller 47, the middle right roller 45 and the upper right roller 422. Thus, the main control module controls the sliding support frame 42 to extend and retract relative to the main support frame 41 through the electric push rod 431, so as to adjust the length of the bearing surface of the conveyor belt 3; the main control module also controls the blanking direction of the conveying belt 3 by controlling the rotation direction of the driving roller.
Automatic weighing unit
Referring to fig. 5 and 6, the automatic weighing unit includes a damping part 61 and a weighing slider 62. The damping part 61 is provided between the frame 1 and the hopper 2, the damping part 61 is compressed in the vertical direction as the weight of the hopper 2 increases, and the damping part 61 is rebounded in the vertical direction as the hopper 2 is lightened. The weighing slider 62 is arranged on the machine frame 1, and the position of the weighing slider 62 in the vertical direction is adjustable. The feeding hopper 2 and the weighing sliding block 62 are respectively provided with a first trigger 2b and a first trigger module 62b, the first trigger 2b moves up and down along with the feeding hopper 2, the first trigger module 62b is located on the movement track of the first trigger 2b, the first trigger 2b and the first trigger module 62b transmit weighing signals when contacting, and the main control module is used for acquiring the weighing signals. In the present embodiment, the feed hopper 2 can be suspended at different heights according to the weight of the tea leaves loaded due to the provision of the damper portion 61. In this embodiment, the weight threshold value represented by the weighing signal is adjusted by adjusting the position of the weighing slider 62 in the vertical direction, and the main control module can control the feeding hopper 2 to stop feeding when acquiring the weighing signal, so that the feeding hopper 2 accurately controls the feeding weight.
Specifically, in the present embodiment, a U-shaped groove 12 is provided on the frame 1, and the weighing slider 62 is disposed on the frame 1 through the U-shaped groove 12 and the locking member, and is adjustable in vertical position. Meanwhile, a graduated scale 13 is arranged beside the U-shaped groove 12 to facilitate accurate adjustment of the position of the weighing slider 62.
In this embodiment, the first trigger module 62b is a travel switch, and the first trigger 2b is a pressure plate, so that the switch signal is changed when the first trigger 2b abuts against the first trigger module 62 b.
Specifically, in the present embodiment, the feed hopper 2 is composed of an upper hopper and a lower hopper. The upper hopper is a two-end-to-end structure formed by stretching a closed structure on a horizontal plane in the vertical direction, and specifically can adopt a cylindrical structure or a polyhedral cylindrical structure. The upper end of the lower hopper is connected with the upper hopper in a seamless way, and the discharge port of the feed hopper 2 is arranged at the bottom of the lower hopper. In order to facilitate blanking, the lower hopper can be arranged into an inverted conical structure.
Be equipped with the closed lantern ring 11 that interior week and last fill periphery agree with on frame 1, go up the fill setting in closed lantern ring 11 interior week and with the 11 clearance fit of closed lantern ring to make things convenient for feeder hopper 2 at 11 interior week up-and-down motion of lantern ring, the vertical direction of skew when avoiding feeder hopper 2 up-and-down motion, guarantee feeder hopper 2's job stabilization, also guarantee the accurate weighing simultaneously. Damping portion 61 comprises the extension spring of a plurality of vertical settings and distribution in last fill periphery, and closed lantern ring 11 and feeder hopper 2 are connected respectively at the both ends of each extension spring, and lantern ring 11 and last fill are connected respectively at the both ends of specific extension spring to conveniently provide the ascending damping of vertical side for feeder hopper 2.
Tea outlet door
Referring to fig. 7 and 8, the tea outlet door 8 comprises a first door leaf 81 and a second door leaf 82, and the first door leaf 81 and the second door leaf 82 are slidably mounted at the outlet of the feeding hopper 2. The tea outlet door driving unit comprises a tea outlet support frame 71, a second triggering module 71c, a tea outlet door triggering piece 8cd, a third triggering module 71d and a tea outlet door driving part 72; the tea discharging support frame 71 is arranged on the machine frame 1, the tea discharging door driving part 72 is arranged on the tea discharging support frame 71, the tea discharging door driving part 72 is used for driving the first door leaf 81 and the second door leaf 82 to move in opposite directions, namely when the discharge hole of the feed hopper 2 needs to be closed, the tea discharging door driving part 72 drives the first door leaf 81 and the second door leaf 82 to move in opposite directions and abut against each other to be closed; when the discharge port of the feeding hopper 2 needs to be opened, the tea outlet door driving part 72 drives the first door leaf 81 and the second door leaf 82 to move back to back.
The second triggering module 71c and the third triggering module 71d are both arranged on the tea-out supporting frame 71. The tea-out door trigger 8cd moves synchronously with the first door leaf 81 or the second door leaf 82. Specifically, the tea outlet door trigger 8cd is arranged on the left nut 723; when the tea outlet door 8 is closed, the tea outlet door trigger 8cd contacts with the second trigger module 71c and generates a door closing state signal, which indicates that the first door leaf 81 and the second door leaf 82 are abutted against and folded at the moment, and the discharge hole of the feed hopper 2 is completely blocked; when the tea outlet door 8 is completely opened, the tea outlet door trigger 8cd contacts the third trigger module 71d and generates a door opening state signal, which indicates that the first door leaf 81 and the second door leaf 82 are far away from each other and the discharge hole of the feeding hopper 2 is completely unblocked. The main control module is used for receiving the door closing state signal and the door opening state signal so as to acquire the state of the tea outlet door 8.
In this embodiment, the second triggering module 71c and the third triggering module both use a travel switch, and the tea outlet triggering member 8cd uses a pressing plate, so that the triggering member presses the triggering module to generate signal change.
In the present embodiment, the tea gate driving unit 72 includes: a tea outlet motor 721, a double-screw lead screw 722, a left nut 723 and a right nut 724. The double-spiral screw rod 722 is rotatably arranged on the tea discharging support frame 71, and the rotating directions of the threads at the two ends of the double-spiral screw rod 722 are opposite. The left nut 723 and the right nut 724 are sleeved on the double-spiral screw rod 722 and are respectively matched with threads at two ends of the double-spiral screw rod 722. The first door leaf 81 is connected with a left nut 723, the second door leaf 82 is connected with a right nut 724, the first door leaf 81 and the second door leaf 82 limit the left nut 723 and the right nut 724 to rotate along with the double-screw rod 722, therefore when the double-screw rod 722 rotates, the left nut 723 and the right nut 724 reversely move along the axial direction of the double-screw rod 722, and meanwhile, the first door leaf 81 and the second door leaf 82 are driven to reversely slide. The tea outlet motor 721 is installed on the tea outlet support frame 71, and the tea outlet motor 721 is used for driving the double-spiral screw rod 722 to rotate.
Referring to fig. 9 and 10, the feeding hopper 2 is provided with a light detection switch 21, a light transmitting glass 22 and a reflecting plate 23 which are collinear; the light detection switch 21 is located outside the feeding hopper 2, the reflecting plate 23 is arranged on the inner wall of the feeding hopper 2, the light-transmitting glass 22 is arranged on the side wall of the feeding hopper 2, the emitted light of the light detection switch 21 passes through the light-transmitting glass 22 and then enters the reflecting plate 23, and the reflected light of the reflecting plate 23 passes through the light-transmitting glass 22 and is received by the light detection switch 21. The reflecting plate 23 and the light-transmitting glass 22 are located at two sides of the discharging port of the feeding hopper 2, when tea leaves exist in the feeding hopper 2, the light is blocked by the tea leaves, the reflecting plate 23 cannot receive the light and cannot generate reflected light, and therefore, if the light detection switch 21 receives the reflected light, the emptying of the tea leaves in the feeding hopper 2 is indicated. The main control module is connected with the light detection switch 21, and whether the feed hopper 2 is emptied or not is judged according to the detection result of the light detection switch 21.
Specifically, in the present embodiment, in order to ensure the accuracy of light detection, the light detection switch is an infrared diffuse reflection switch.
Working method of accurate automatic tea leaf batching equipment
The steps of preparing the ingredients to the tea processing equipment corresponding to each discharge hopper 5 through the ingredient preparing equipment are as follows:
s1, adjusting the position of the weighing slider 62 to adjust the first trigger module 62b to a position corresponding to the set weight, and controlling the length adjusting part 43 to drive the upper left roller 421 and the upper right roller 422 to move reversely by the main control module until the conveyor belt trigger part 42a matches with the conveyor trigger module 1a corresponding to the initial state to send a positioning signal; the initial state is a state that the upper left roller 421 and the upper right roller 422 are farthest away or closest to each other;
the main control module controls the tea outlet door driving part 72 to drive the tea outlet door 8 to close, and controls the feeding mechanism to convey tea to the feed hopper 2 until the main control module receives a weighing signal;
s2, the main control module controls the tea outlet door driving part 72 to drive the tea outlet door 8 to open and controls the conveyer belt 3 to move leftwards/rightwards until the optical detection switch 21 detects that the tea leaves in the feed hopper 2 are completely conveyed to the corresponding discharge hopper 5, namely the optical detection switch 21 receives the reflected light;
s3, the main control module controls the tea outlet door driving part 72 to drive the tea outlet door 8 to close, and the main control module controls the feeding mechanism to convey tea to the feeding hopper 2 until the main control module receives a weighing signal; the main control module controls the tea outlet door driving part 72 to drive the tea outlet door 8 to open and controls the conveyer belt 3 to move rightwards/leftwards until the tea leaves in the feed hopper 2 are completely transported to the corresponding discharge hopper 5;
s4, the main control module controls the length adjusting part 43 to drive the upper left roller 421 and the upper right roller 422 to move along the adjusting direction until the main control module receives the positioning signal again; when the distance between the upper left roller 421 and the upper right roller 422 is the farthest as an initial state, defining the opposite movement direction of the upper left roller 421 and the upper right roller 422 as an adjustment direction; when the distance between the upper left roller 421 and the upper right roller 422 is the nearest as an initial state, the opposite moving direction of the upper left roller 421 and the upper right roller 422 is defined as an adjusting direction;
the main control module controls the tea outlet door driving part 72 to drive the tea outlet door 8 to close, and controls the feeding mechanism to convey tea to the feed hopper 2 until the main control module receives a weighing signal;
returning to step S2, and executing steps S2-S4 in a loop until all the hoppers 5 are filled.
So, go out tealeaves among the hopper 5 can be to each tea processing equipment in the directional transport, realize through a conveyer belt 3 to many tea processing equipment directional dosing.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a tealeaves accurate automatic blending is equipped based on automatic weighing which characterized in that includes: the device comprises a rack (1), a feed hopper (2), a main control module, a discharge control module, a conveyer belt (3), a bidirectional synchronous telescopic mechanism and a plurality of discharge hoppers; the feed hopper (2), the conveyer belt (3), the bidirectional synchronous telescopic mechanism and the plurality of discharge hoppers (5) are all arranged on the frame (1);
the bottom of the discharging hopper (5) is provided with a tea outlet door (8) for controlling discharging, the discharging control module comprises an automatic weighing unit and a tea outlet door driving unit, the automatic weighing unit is used for acquiring the weight of tea in the feeding hopper (2), and the tea outlet door driving unit is used for driving the tea outlet door (8) to open and close;
the bidirectional synchronous telescopic mechanism is arranged on the rack (1), the conveying belt (3) is arranged on the bidirectional synchronous telescopic mechanism, the bidirectional synchronous telescopic mechanism is used for adjusting the positions of the discharging ends on the left side and the right side of the conveying belt (3) along the conveying direction of the conveying belt (3) under the state that the original length of the conveying belt (3) is unchanged, the conveying belt (3) is positioned below the feeding hopper (2), and the feeding hopper (2) discharges materials to the conveying belt (3) through the tea discharging door (8);
the main control module is respectively in signal connection with the automatic weighing unit, the tea outlet door driving unit and the bidirectional synchronous telescopic mechanism.
2. The automatic weighing-based precise automatic tea leaf proportioning device according to claim 1, wherein the bidirectional synchronous telescoping mechanism comprises a main support frame (41), two sliding support frames (42) and a length adjusting part (43);
the main support frame (41) is arranged on the rack (1), the two sliding support frames (42) are horizontally and slidably arranged on the rack (1), and the two sliding support frames (42) are respectively positioned at two ends of the main support frame (41) and are in sliding fit with the main support frame (41); the main supporting frame (41) and the two sliding supporting frames (42) are matched with each other to support the conveying belt (3); the length of the material bearing surface of the conveying belt (3) is changed along with the relative movement of the two sliding support frames (42), the length adjusting part (43) is arranged on the rack (1), and the length adjusting part (43) is used for driving the two sliding support frames (42) to move reversely.
3. The automatic weighing-based tea leaf accurate automatic batching equipment according to claim 2, wherein the main supporting frame (41) comprises a supporting plate (411), the supporting plate (411) is horizontally arranged on the frame (1), two sliding supporting frames (42) are respectively provided with a left upper roller (421) and a right upper roller (422), the left upper roller (421) and the right upper roller (422) are used for supporting the conveying belt (3) and determining the bearing surface of the conveying belt (3) in cooperation with the supporting plate (411);
a conveying belt trigger part (42a) is arranged on any sliding support frame (42), N conveying trigger modules (1a) are arranged on the main support frame (41), and the N conveying trigger modules (1a) are all positioned on the movement track of the conveying belt trigger part (42 a);
the number of the discharge hoppers (5) is 2N, the two sliding support frames (42) are symmetrically arranged, a symmetrical plane between the two sliding support frames (42) is used as a central plane, every two discharge hoppers (5) symmetrical about the central plane are used as a pair, and the conveying trigger modules (1a) are in one-to-one correspondence with the N pairs of discharge hoppers (5); the main control module is used for controlling the forward and reverse rotation of the conveying belt (3) to feed materials to the discharging hoppers (5) at the two ends of the bearing surface of the conveying belt (3) when receiving the positioning signal of the conveying trigger module (1 a).
4. The automatic weighing-based tea leaf precision automatic dosing equipment according to claim 3, wherein the main support frame (41) further comprises a first side plate (412) and a second side plate (413); the first side plate (412) and the second side plate (413) are both vertically arranged on the rack (1), and the first side plate (412) and the second side plate (413) are positioned on two sides of the supporting plate (411); each sliding support frame (42) is vertically provided with a first extension side plate (423) and a second extension side plate (424); the first extension side plate (423) is in sliding fit with the first side plate (412) or the support plate (411), and the second extension side plate (424) is in sliding fit with the second side plate (413) or the support plate (411);
the first side plate (412) and the two first extension side plates (423) are positioned on one side of the bearing surface of the conveyor belt (3), and the second side plate (413) and the two second extension side plates (424) are positioned on the other side of the bearing surface of the conveyor belt (3).
5. The automatic weighing-based tea leaf accurate automatic dispensing equipment according to claim 4, wherein a gap for accommodating the first extension side plate (423) is provided between both ends of the support plate (411) and the first side plate (412), and a gap for accommodating the second extension side plate (424) is provided between both ends of the support plate (411) and the second side plate (413); a first sliding groove (4230) is formed in the first extension side plate (423), and a second sliding groove (4240) is formed in the second extension side plate (424); the end of the support plate (411) is inserted into the corresponding first sliding groove (4230) and second sliding groove (4240) to be in sliding fit with the first extension side plate (423) and the second extension side plate (424); the sliding support frame (42) further comprises an extension support plate (425) horizontally arranged between the first extension side plate (423) and the second extension side plate (424), and in the sliding process of the sliding support frame (42) relative to the main support frame (41), the extension support plate (425) is attached to the lower surface of the support plate (411) to move.
6. The automatic weighing-based tea leaf accurate automatic blending equipment according to claim 3, wherein the bidirectional synchronous telescoping mechanism further comprises a left middle roller (44), a right middle roller (45), a left lower roller (46), a right lower roller (47) and a conveyor belt driving motor (48); the left middle roller (44) and the right middle roller (45) are respectively arranged on the two sliding support frames (42), and the left lower roller (46) and the right lower roller (47) are both arranged on the machine frame and are symmetrical about a central plane; the conveyer belt (3) is wound by the left upper roller (421), the left middle roller (44), the left lower roller (46), the right lower roller (47), the right middle roller (45) and the right upper roller (422); the length adjusting part comprises two electric push rods (431), the two electric push rods (431) respectively correspond to the two sliding support frames (42), and two ends of each electric push rod (431) are respectively connected with the rack (1) and the corresponding sliding support frame (42); the main control module is respectively connected with two electric push rods (431) and a conveying belt driving motor (48), the conveying belt driving motor (48) is used for driving a driving roller to rotate forwards and reversely, the driving roller drives the conveying belt (3) to move, and the driving roller is any one of a left upper roller (421), a left middle roller (44), a left lower roller (46), a right lower roller (47), a right middle roller (45) and a right upper roller (422).
7. The automatic weighing-based tea precise automatic batching equipment according to the claim 3, characterized in that the automatic weighing unit comprises a damping part (61) and a weighing slider (62), the damping part (61) is arranged between the frame (1) and the feeding hopper (2), the damping part (61) is telescopic in the vertical direction along with the weight of the feeding hopper (2); the weighing sliding block (62) is arranged on the rack (1) in a position adjustable in the vertical direction; feed hopper (2) and weigh slider (62) and be equipped with first trigger (2b) and first trigger module (62b) on respectively, first trigger (2b) along with feed hopper (2) up-and-down motion, first trigger module (62b) are located the movement track of first trigger (2b), the signal of weighing is launched when first trigger (2b) and first trigger module (62b) contact, main control module is used for acquireing this signal of weighing.
8. The automatic weighing-based tea leaf accurate automatic batching equipment according to claim 7, wherein the feeding hopper (2) is composed of an upper hopper and a lower hopper, the upper hopper is a two-end-to-end structure formed by stretching a closed structure on a horizontal plane in the vertical direction, the upper end of the lower hopper is seamlessly connected with the upper hopper, and a discharge hole of the feeding hopper (2) is arranged at the bottom of the lower hopper;
a closed lantern ring (11) with the inner periphery matched with the outer periphery of the upper bucket is arranged on the rack (1), and the upper bucket is arranged on the inner periphery of the closed lantern ring (11) and is in clearance fit with the closed lantern ring (11); damping portion (61) comprise a plurality of vertical settings and the extension spring that distributes in last fill periphery, and closed lantern ring (11) and feeder hopper (2) are connected respectively to the both ends of each extension spring.
9. The automatic weighing-based tea leaf precise automatic blending equipment according to claim 7, wherein the tea outlet door (8) comprises a first door leaf (81) and a second door leaf (82), and the first door leaf (81) and the second door leaf (82) are slidably installed at a discharge port of the feed hopper (2); the tea outlet door driving unit comprises a tea outlet support frame (71), a second triggering module (71c), a tea outlet door triggering piece (8cd), a third triggering module (71d) and a tea outlet door driving part (72); the tea outlet support frame (71) is arranged on the machine frame (1), the tea outlet door driving part (72) is arranged on the tea outlet support frame (71), and the tea outlet door driving part (72) is used for driving the first door leaf (81) and the second door leaf (82) to move reversely;
the second trigger module (71c) and the third trigger module (71d) are both arranged on the tea discharging support frame (71); the tea outlet door trigger piece (8cd) and the first door leaf (81) or the second door leaf (82) synchronously move; when the tea outlet door (8) is closed, the tea outlet door trigger piece (8cd) is contacted with the second trigger module (71c) and generates a door closing state signal; when the tea outlet door (8) is completely opened, the tea outlet door trigger piece (8cd) is contacted with the third trigger module (71d) and generates a door opening state signal; the main control module is used for receiving a door closing state signal and a door opening state signal;
the feed hopper (2) is provided with an optical detection switch (21), light-transmitting glass (22) and a reflecting plate (23), and the three are collinear; the light detection switch (21) is positioned on the outer side of the feed hopper (2), the reflecting plate (23) is arranged on the inner wall of the feed hopper (2), the light-transmitting glass (22) is arranged on the side wall of the feed hopper (2), the emitted light of the light detection switch (21) penetrates through the light-transmitting glass (22) and then is incident on the reflecting plate (23), and the reflected light of the reflecting plate (23) penetrates through the light-transmitting glass (22) and is received by the light detection switch (21); the reflecting plate (23) and the light-transmitting glass (22) are positioned on two sides of the discharge hole of the feed hopper (2); the main control module is connected with the light detection switch (21), and whether the feed hopper (2) is emptied or not is judged according to the detection result of the light detection switch (21).
10. The automatic weighing-based precise automatic tea leaf proportioning equipment according to claim 9, wherein the tea outlet door driving part (72) comprises: a tea outlet motor (721), a double-helix screw rod (722), a left nut (723) and a right nut (724); the double-spiral screw rod (722) is rotatably arranged on the tea discharging support frame (71), and the rotating directions of threads at two ends of the double-spiral screw rod (722) are opposite; the left nut (723) and the right nut (724) are sleeved on the double-spiral screw rod (722) and are respectively matched with threads at two ends of the double-spiral screw rod (722); the left nut (723) and the right nut (724) are respectively connected with the first door leaf (81) and the second door leaf (82); the tea outlet motor (721) is arranged on the tea outlet support frame (71), and the tea outlet motor (721) is used for driving the double-spiral screw rod (722) to rotate.
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| CN115228558A (en) * | 2022-07-29 | 2022-10-25 | 安徽农业大学 | Automatic-feeding continuous fossil-grinding tea-polishing unit and control method |
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