Multi-channel vacancy-free feeding device

Abstract

The invention discloses a multi-channel vacancy-free feeding device and method, and relates to the technical field of automatic packaging. The device comprises a main conveying belt, N branch conveying units, a pushing mechanism, a synchronous feeding device, a detection module and a main control unit. The main conveying belt forms a positioning station through a blocking table, the detection module counts materials, the main control unit calculates delay time in combination with parameters and controls the pushing mechanism to accurately push the materials to the branch line conveying unit, and the synchronous feeding device alternately carries and synchronously releases the materials through double sets of dustpan type grooves. According to the method, continuous non-vacancy feeding is achieved through initialization setting, conveying starting, detection counting, precise pushing, synchronous feeding and cyclic operation. Closed-loop control is formed, feeding vacancy and material waste are completely eradicated, materials with different characteristics and multi-scale production lines are adapted, operation efficiency and product quality are improved, and cost and universality are both considered.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic packaging technology, in particular to a multi-channel non-empty feeding device. TECHNICAL BACKGROUND

[0002] Fruits and vegetables usually need to be wrapped with EPE foam netting or other cushioning packaging after being picked to reduce collision and friction damage during transportation and storage. With the development of automation technology, manual netting has been gradually replaced by automatic netting equipment. The core requirement is that the feeding link needs to achieve continuous non-empty conveying - fruits and vegetables need to enter the netting work station accurately one by one, and empty feeding is not allowed. If there is empty feeding during the feeding process, on the one hand, it will cause the netting mechanism to idle and wait, breaking the continuous operation rhythm and significantly reducing the packaging efficiency of the entire production line; on the other hand, it will form an empty netting without material, causing direct waste of netting material and increasing packaging cost.

[0003] The prior art has not found a similar non-empty feeding device. SUMMARY

[0004] The present application provides a multi-channel non-empty feeding device, comprising a main conveying belt continuously rotating, the outer surface of the body of which is provided with barrier platforms equally spaced along the conveying direction, and a positioning station suitable for placing a single material being formed between adjacent two barrier platforms; N branch line conveying units, N≥1, the feeding end of each branch line conveying unit being close to the side of the main conveying belt, and being arranged in an equidistant array along the conveying direction of the main conveying belt and the spacing of the barrier platforms; N push mechanisms located above the main conveying belt and respectively corresponding to the N branch line conveying units, for pushing the material from the positioning station of the main conveying belt into the corresponding branch line conveying unit; N synchronous feeders respectively arranged at the discharging end of the N branch line conveying units, for controlling the release timing of the material in the branch line conveying unit; a material detection and counting module arranged above the main conveying belt and located on the upstream side of the N push mechanisms, for detecting and counting the material passing through it on the main conveying belt, and automatically resetting when the count reaches N; a material in-place detection unit respectively arranged above the N synchronous feeders, for detecting whether the material in the corresponding synchronous feeder is in place; a main control unit signal connected with the N push mechanisms, the N synchronous feeders, the material detection and counting module, and the material in-place detection unit, for controlling the action timing of each component.

[0005] Further, when the branch line conveying unit is a chute, the chute is arranged in an inclined manner, and the height of the feeding end is higher than that of the discharging end; when the branch line conveying unit is a branch line conveying belt, the branch line conveying belt is signal-linked with the main control unit, and the conveying speed can be adjusted.

[0006] Further, the pushing mechanism is driven by a linear motion mechanism or a rotary motion mechanism, the linear motion mechanism is any one of a push-pull electromagnet, an air cylinder, an oil cylinder or a crank connecting rod mechanism, and the rotary motion mechanism is any one of a rotary electromagnet or a motor.

[0007] Further, the N pushing mechanisms are respectively connected with the brush shaft through N electromagnetic clutches, the brush shaft is continuously rotated by a brush driving member, and the electromagnetic clutches are signal-connected with the main control unit; the pushing mechanism comprises a circular brush base body, and the outer circular surface of the brush base body is provided with a partial or full hair planting area.

[0008] Further, the synchronous feeder is fixedly connected with a turnover shaft, the turnover shaft is drivingly connected with a turnover driving member, the turnover driving member is a servo motor, a stepping motor + a limit switch or a speed-reducing motor + an encoder, and each synchronous feeder is provided with two about-turnover shaft symmetrical circumferential arrayed scoop-shaped grooves.

[0009] Further, the speed adaptation module is a speed sensor, the speed sensor is signal-connected with the main control unit, and is used for detecting the rotating speed of the main conveying belt in real time; or the main control unit pre-stores the fixed rotating speed parameter of the main conveying belt, and no speed sensor is configured.

[0010] Further, the main control unit is internally provided with a timing module, a counting module and a parameter storage module, and pre-stores the distance parameters of the stop blocks and the distance parameters of the pushing mechanisms and the material detection counting module.

[0011] The application also provides a multi-channel non-missing feeding method, which is realized based on the multi-channel non-missing feeding device and comprises the following steps. S1. initialization setting, the type of the branch line conveying unit is selected according to the characteristics of the material to be processed, the distance parameters of the stop blocks, the distance parameters of the pushing mechanisms and the material detection counting module and the rotating speed parameter of the main conveying belt are recorded in the main control unit; S2. conveying start, the main conveying belt and the pushing mechanism are started; S3. material loading and detection counting, the material is placed in the positioning station of the main conveying belt one by one, and the material is conveyed along with the main conveying belt; when the material passes through the material detection counting module, the counting module records the material serial number, and if no material is detected, the corresponding serial number counting is skipped; S4. Push control, the main control unit calculates the delay time of the material reaching the corresponding push mechanism according to the material serial number, the pre-stored spacing parameter and the conveying belt speed information; after the delay time ends, the corresponding push mechanism is controlled to act to push the material to the corresponding branch transmission unit, and the material is conveyed to the synchronous feeder by the branch transmission unit; S5. Synchronous feeding control, the material in place detection unit detects the material in place state in the synchronous feeder in real time and feeds back to the main control unit; when all the material in place detection units feed back that the material is in place, the main control unit controls the synchronous feeder to feed synchronously; S6. Cycle operation, when the serial number recorded by the counting module reaches N, the zero is automatically cleared, and steps S3-S5 are repeated to realize continuous and no-missing-position feeding.

[0012] Further, in step S1, the chute is selected as the branch transmission unit when the material to be processed is easy to roll, and the branch transmission belt is selected as the branch transmission unit when the material to be processed is easy to damage or irregular in shape.

[0013] Further, in step S4, the delay time is calculated by dividing the spacing between the push mechanism and the material detection counting module by the rotation speed of the main conveying belt.

[0014] Compared with the prior art, the present application has the following beneficial effects: No-missing-position feeding is precisely controllable, and resource waste is completely eliminated: the material on the main conveying belt is precisely detected and counted by the material detection counting module, the push timing of the push mechanism is precisely controlled in combination with the timing module, the pre-stored spacing parameter and the speed information in the main control unit, the material in place state in the synchronous feeder is fed back in real time by the material in place detection unit, the action of the flip synchronous feeder is linkage controlled, and a closed loop control of "detection-counting-pushing-synchronous release" is formed. The subsequent mechanism idling problem caused by missing position feeding is completely eliminated, the production of empty packaging without material is avoided, the packaging material waste is significantly reduced, and the feeding precision is improved compared with the traditional feeding mode.

[0015] The structure is modularized and convenient to maintain, and is suitable for multi-scale production lines: the device adopts modularized layout, the main conveying belt, the branch transmission unit, the push mechanism, the synchronous feeder and other core components are cooperated, the overall structure is simple and compact, and the occupied space is small; the core components are standardized components, and the branch transmission unit supports quick disassembly and replacement selection, is convenient to disassemble and assemble, and has low failure rate. The operation and maintenance cost is low, the device is not only suitable for small and medium-sized fruit and vegetable netting production lines, but also can adapt to the customized needs of large-scale production lines by increasing or decreasing the number of branch transmission units and switching the transmission type.

[0016] Wide material adaptability and strong protection of product quality: The tile-shaped baffle forms an independent positioning station through a structure higher than the conveying plane, which can not only limit the position of materials and avoid collision and displacement during the conveying process, but also accommodate materials of different sizes; The pushing mechanism uses a flexible flocked area or a precision drive structure to contact the materials, with low pushing impact force, which can effectively avoid scratching and damage to the material surface; More importantly, the branch line conveyor unit supports dual-selection adaptation: Easy-to-roll materials use inclined chutes to achieve smooth conveying with the help of gravity; Easily damaged or irregularly shaped materials use branch line conveyor belts, which achieve stable transfer through adjustable conveying speed, without the need for frequent adjustment of equipment parameters, and can adapt to the feeding needs of various shaped fruits and vegetables such as spherical, oval, and irregular shapes.

[0017] High efficiency in continuous operation, significantly improving production capacity: The synchronous feeder adopts a double-set symmetrical trough design, which achieves "alternating reception-synchronous release" by rotating the rotating shaft 180°. The release of the previous batch of materials and the reception of the next batch of materials are carried out in parallel, completely eliminating the emptying waiting gap of the traditional feeding device. At the same time, the multi-channel branch line transmission unit is linked with the synchronous feeder to ensure that the materials in N channels enter the subsequent workstations without any deviation or gap, which greatly improves the continuous operation rhythm. The feeding amount per unit time is more than 40% higher than that of the traditional device, effectively ensuring the maximum production capacity of the subsequent wire mesh process.

[0018] With flexible and diverse applications, balancing cost and versatility, the device supports a dual flexible mode of "operating condition adaptation + material adaptation": On the one hand, when the main conveyor belt uses a fixed speed, the speed sensor can be omitted, and precise control can be achieved through pre-stored parameters in the main control unit, reducing equipment procurement costs; if the conveyor belt speed fluctuates during production, a speed sensor can be selected to provide real-time feedback on the speed, and the main control unit dynamically adjusts the push sequence to ensure that the feeding accuracy is not affected. On the other hand, by selecting and switching branch transmission units, it can adapt to the needs of production lines with different characteristics and different production capacity scales, without the need for separately customized special equipment, significantly improving the versatility of the device and reducing the cost of upgrading and transforming enterprise production lines. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0020] This embodiment takes N=6 as an example, and describes in detail the structure, installation, core technical principle and working process of the multi-channel missing feeding device of the present invention with reference to the accompanying drawings. Other configurations with N≥1 only require corresponding increases or decreases in the number of components such as branch transmission unit 2, pushing mechanism 3, and synchronous feeder 4, and all fall within the protection scope of the present invention.

[0021] I. Overall Structure Installation All functional components of this device are installed using the frame as a unified mounting reference. The frame is welded from Q235 steel plate and equipped with leveling feet at the bottom for easy adjustment of the frame's level. The overall height is set at 1.2-1.5m, suitable for common heights of manual feeding or front-end feeding mechanisms. The specific installation methods and details of each component are as follows: (a) Installation of main conveyor belt 1 The main conveyor belt 1 is made of food-grade PVC material, with a thickness of 3-5mm and a width of 20-30cm depending on the material size. It is horizontally mounted on the pre-set conveyor rollers on the frame. Both ends of the conveyor rollers are connected to the frame via deep groove ball bearings to ensure smooth rotation. The main conveyor belt 1 is driven by a conveyor drive unit, which is a geared motor with a power of 0.5-1.5kW and an adjustable speed range of 0.1-0.5m / s. The geared motor is connected to one end of the conveyor rollers via a coupling and fixed to a motor mounting bracket on the side of the frame. The motor mounting bracket is then welded to the frame with bolts.

[0022] The baffles 11 on the outer surface of the main conveyor belt 1 are tile-shaped, made of wear-resistant rubber with a thickness of 8-12mm, and are fixed to the conveyor belt body at equal intervals along the conveying direction. The spacing between adjacent baffles 11 is set at 6-10cm, suitable for the single placement of common fruits and vegetables such as apples, oranges, and potatoes. The two ends of the baffles 11 are fixed to the conveyor belt body 1 with countersunk bolts. The bolt hole diameter is 3mm and the spacing is 5cm to prevent the bolts from protruding and scratching the material. The top surface of the baffles 11 is 5-8cm higher than the conveying plane, which can limit the position of the material without affecting the operation of the pushing mechanism 3.

[0023] (ii) Installation of branch transmission unit 2 Branch transmission unit 2 has two types available, and one type can be selected for installation based on the characteristics of the material. The specific installation method is as follows: 1. Installation of chute-type branch transmission unit 2 All six chutes are made of 304 stainless steel sheet, bent to a thickness of 2-3mm. The chute width is 2-3cm larger than the maximum diameter of the material to be conveyed, ensuring smooth material passage. The six chutes are equidistantly arranged along the side of the main conveyor belt 1, with the spacing between adjacent chutes matching the spacing between adjacent baffles 11. The distance between the chute inlet and the edge of the main conveyor belt 1 is ≤2cm, and the outlet is tilted downwards at 15°-30°, directly facing the synchronous feeder 4 below. The inner wall of the chutes is coated with a smooth, wear-resistant coating to reduce frictional resistance during material conveying and prevent material jamming. The chutes are fixed to the frame using angle steel supports, which are connected to the frame with M8 bolts to ensure stable installation without shaking.

[0024] 2. Installation of branch transmission belt type branch transmission unit 2 Six branch conveyor belts are also equidistantly arrayed along the conveying direction of the main conveyor belt 1 on the side of the main conveyor belt 1. The width of the branch conveyor belts is consistent with the width of the chute. The distance between the feed end and the edge of the main conveyor belt 1 is ≤2cm, and the discharge end faces the synchronous feeder 4 below. The branch conveyor belts are driven by micro geared motors with a power of 50-100W and an adjustable speed range of 0.05-0.2m / s. They are also linked to the main control unit, allowing the conveying speed to be adjusted via the main control unit. The frame of the branch conveyor belts is fixed to the frame of this device with bolts. The installation height ensures that the material can be smoothly pushed from the main conveyor belt 1 onto the branch conveyor belt without falling or colliding.

[0025] (III) Installation of Push Mechanism 3 Push mechanism 3 has two driver types, corresponding to different installation methods, as detailed below: 1. Installation of linear / rotary motion mechanism driven push mechanism 3 If a linear motion mechanism is used for driving, any one of the following can be selected: push-pull electromagnet, cylinder, hydraulic cylinder, or crank-connecting rod mechanism. Taking a cylinder as an example, the cylinder diameter is selected as 20-30mm, the stroke is set to 15-20cm, and it is installed on a bracket above the main conveyor belt 1. The height of the bracket is adjusted according to the material height to ensure that when the cylinder piston rod extends, it can push the material from the main conveyor belt 1 into the branch transmission unit 2 without colliding with the baffle 11. The air inlet of the cylinder is connected to a solenoid valve through an air pipe. The solenoid valve is connected to the main control unit for signal control of the cylinder's start and stop.

[0026] If a rotary motion mechanism is used for driving, either a rotary electromagnet or a motor can be selected. Taking a rotary electromagnet as an example, a pusher plate is mounted on the output shaft of the rotary electromagnet. The pusher plate is made of 5mm thick nylon to avoid scratching the material. The rotary electromagnet is fixed on a bracket above the main conveyor belt 1. The installation angle ensures that the pusher plate can accurately push the material into the corresponding branch transmission unit 2 when rotating. The rotation angle is set to 90°, and the rotation speed is adjustable. The rotary electromagnet is signal-connected to the main control unit, which controls its rotation and reset.

[0027] 2. Installation of electromagnetic clutch 32 + brush shaft 31 drive type push mechanism 3 Six pushing mechanisms 3 are respectively connected to the brush shaft 31 via six electromagnetic clutches 32. The brush shaft 31 is made of 45# steel with a diameter of 20-25mm, and both ends are fixed to the frame by bearing seats. The bearing seats are deep groove ball bearing seats to ensure smooth rotation of the brush shaft 31. The brush shaft 31 is driven by a miniature geared motor with a power of 100-150W and a speed set at 30-50r / min, rotating continuously.

[0028] The electromagnetic clutch 32 is a dry-type miniature electromagnetic clutch. The inner ring is fixed to the brush shaft 31 by a flat key, and the outer ring is fixed to the annular brush base of the pushing mechanism 3 by bolts. The annular brush base of the pushing mechanism 3 is made of plastic material with a diameter of 50-60mm. The outer surface is provided with a bristle-planting area. The bristle-planting area can be set to part or all of the outer surface according to the pushing requirements. The bristles are made of flexible and wear-resistant nylon material, and their length is 3-5cm longer than the distance between the brush and the surface of the main conveyor belt 1, ensuring that they can effectively contact the material and push it into the branch transmission unit 2 during pushing.

[0029] The six pushing mechanisms 3 correspond to the six branch transmission units 2 respectively, and are installed above the feeding end of the branch transmission unit 2. The installation height of the brush shaft 31 ensures that the brush bristles can gently contact the material on the surface of the main conveyor belt 1, so as not to damage the material and to provide sufficient pushing force.

[0030] (iv) Installation of synchronous feeder 4 All six synchronous feeders 4 are fixedly connected to the tilting shaft 41. The tilting shaft 41 is a No. 45 steel shaft with a diameter of 30-35mm. Both ends are mounted on the frame via bearing seats, which are fixed to the frame with M10 bolts to ensure smooth and wobbly rotation of the tilting shaft 41. One end of the tilting shaft 41 is connected to the tilting drive component. The tilting drive component can be any one of a servo motor, a stepper motor + limit switch, or a geared motor + encoder. In this embodiment, a servo motor with a power of 200-300W is selected, which has high control precision and can ensure the accurate rotation of the tilting shaft 41.

[0031] Each synchronous feeder 4 is equipped with two scoop troughs 42, which are symmetrically arranged in a circular array about the flip axis 41. The scoop troughs 42 are made of 304 stainless steel plate, with a depth of 8-10cm and a width consistent with the width of the discharge end of the branch transmission unit 2, ensuring that the material can fall smoothly into the trough. In the initial state, one set of scoop troughs 42 precisely connects to the discharge ends of 6 branch transmission units 2, with a gap of ≤1cm at the connection point to prevent material from falling.

[0032] (v) Installation of the detection module The material detection and counting module 5 includes a first photoelectric sensor, which is a diffuse reflection type photoelectric sensor with a detection distance of 5-10cm. It is installed above the main conveyor belt 1, upstream of the nearest end pushing mechanism 3, with a horizontal distance of 50-80cm from the nearest end pushing mechanism 3. The sensor is fixed to the frame by a bracket, with the detection end vertically facing the positioning station of the main conveyor belt 1 to ensure accurate detection of passing materials.

[0033] The material arrival detection unit 6 includes 6 second photoelectric sensors, which are also diffuse reflection type photoelectric sensors. They are installed above the 6 synchronous feeders 4 respectively. Each sensor is fixed on the frame by an independent bracket. The detection end is vertically facing the bottom of the corresponding trough 42. The detection distance is 3-5cm to ensure accurate detection of whether there is material in the trough 42.

[0034] (vi) Installation of the main control unit The main control unit is a PLC controller, fixed in an electrical box on the side of the frame. The electrical box is made of cold-rolled steel plate and is dustproof and waterproof. The main control unit is connected to all electrical control components via wires, including the drive component of the pushing mechanism 3, the electromagnetic clutch 32, the tilting drive component, the first photoelectric sensor, the second photoelectric sensor, and the speed sensor (if configured). Wiring is secured with crimp terminals, and RVV type copper core cables are used. The wire diameter is selected according to the component power (0.75-1.5mm²). All wires are arranged along the pre-set wire grooves on the frame to avoid clutter.

[0035] The parameters pre-stored in the main control unit include the spacing parameters of the baffle 11, the spacing parameters between each pushing mechanism 3 and the first photoelectric sensor along the conveying direction of the main conveyor belt 1, and if the main conveyor belt 1 adopts a fixed rotation speed, the fixed rotation speed parameter also needs to be pre-stored.

[0036] II. Core Technology Principles (I) Principle of Missing Detection and Counting The first photoelectric sensor monitors the positioning stations on the main conveyor belt 1 in real time. When material passes the first photoelectric sensor along the main conveyor belt 1, the sensor sends a detection signal to the counting module of the main control unit. Upon receiving the signal, the counting module automatically increments by 1 and records the material sequence number sequentially. When the sequence number recorded by the counting module reaches 6, it automatically resets to zero and starts counting again. If a positioning station is empty and the first photoelectric sensor does not detect any material, the counting module skips the count corresponding to that positioning station and does not increment by 1, ensuring that only effectively conveyed material is tracked and avoiding subsequent material feeding gaps caused by empty material.

[0037] (II) Principle of Precise Push Timing The main control unit has a built-in timing module that calculates the delay time for material to travel from the position of the first photoelectric sensor to the corresponding pushing mechanism 3 based on pre-stored parameters. Specifically, the delay time is calculated as: Delay time = Horizontal distance between the pushing mechanism 3 and the first photoelectric sensor ÷ Rotation speed of the main conveyor belt 1. For example, if the rotation speed of the main conveyor belt 1 is 0.2 m / s and the horizontal distance between a certain pushing mechanism 3 and the first photoelectric sensor is 0.5 m, then the delay time for that pushing mechanism 3 is 0.5 m ÷ 0.2 m / s = 2.5 s. After the delay time calculated by the timing module ends, the main control unit sends an action signal to the drive component of the pushing mechanism 3, controlling the pushing mechanism 3 to start and accurately push the material to the corresponding branch transmission unit 2.

[0038] If the rotation speed of the main conveyor belt 1 fluctuates, a speed sensor can be configured. The speed sensor detects the rotation speed of the main conveyor belt 1 in real time and feeds it back to the main control unit. The main control unit dynamically adjusts the delay time according to the real-time speed to ensure the accuracy of the push sequence. If the main conveyor belt 1 adopts a fixed rotation speed, there is no need to configure a speed sensor. The main control unit can directly call the pre-stored fixed speed parameters to calculate the delay time.

[0039] (III) The principle of alternating acceptance and release Each synchronous feeder 4 has two hoppers 42 that alternately receive and release materials. Initially, the first set of hoppers 42 connects to the discharge end of the branch transmission unit 2, receiving materials from it. Once the first set of hoppers 42 is full and has completed synchronous release, the tilting shaft 41 rotates 180°, and the second set of hoppers 42 tilts synchronously to the receiving position to receive the next batch of materials. Meanwhile, the first set of hoppers 42 waits for its next tilting reset after releasing materials. This alternating working mode eliminates the need to wait for the hoppers 42 to empty before receiving the next batch of materials, completely eliminating the emptying waiting gap of traditional feeding devices and improving continuous operation efficiency.

[0040] (iv) Power switching principle When the pushing mechanism 3 adopts the driving form of electromagnetic clutch 32 + brush shaft 31, the on / off state of electromagnetic clutch 32 controls the power transmission. When electromagnetic clutch 32 is de-energized, its inner and outer rings are separated, and the rotational power of brush shaft 31 cannot be transmitted to pushing mechanism 3, so pushing mechanism 3 remains stationary. When the main control unit sends an action signal, electromagnetic clutch 32 is energized, the inner and outer rings are attracted, and the rotational power of brush shaft 31 is transmitted to pushing mechanism 3. Pushing mechanism 3 rotates with brush shaft 31 to realize the material pushing action.

[0041] (V) Principle of Synchronous Release Six second photoelectric sensors detect the material arrival status in their respective hoppers 42 in real time. Whenever material falls into a hopper 42 and comes to a stable stop, the corresponding second photoelectric sensor sends a "material arrival" signal to the main control unit. Only when all six second photoelectric sensors have returned "material arrival" signals, and the main control unit confirms that all hoppers 42 are full of material, will it trigger a synchronous release command.

[0042] The main control unit will delay the push sequence by an additional 0.5-2 seconds to ensure that the material is completely stable in the hopper 42. Then, it will send a drive signal to the tilting drive to control the tilting drive to rotate the tilting shaft 41 180°. The tilting shaft 41 drives the six synchronous feeders 4 to tilt synchronously. All the hoppers 42 carrying materials tilt downwards at the same time. The materials fall synchronously to the next process under the action of gravity, ensuring that the materials in the six channels enter the subsequent stations without any deviation or gap, and avoiding the operation disorder caused by the early or delayed release of materials in a single channel.

[0043] III. Work Process (a) Initial preparation The power supply to the start-up device is activated, and the main control unit performs a self-test. After completion, it controls the main conveyor belt 1 to start and rotate continuously at a speed set according to preset parameters. If the pushing mechanism 3 uses an electromagnetic clutch 32 + brush shaft 31 drive, the brush shaft 31 starts synchronously and rotates continuously. At this time, all electromagnetic clutches 32 are de-energized, and the pushing mechanism 3 remains stationary. If a linear / rotary motion mechanism is used, the driving components of the pushing mechanism 3 are in an untriggered state and also do not move. The first set of scoop troughs 42 of the synchronous feeder 4 remains at the initial position at the discharge end of the connecting branch transmission unit 2, waiting to receive materials.

[0044] (ii) Material feeding and detection counting Materials are placed one by one into the positioning stations of the main conveyor belt 1, either manually or via a front-end feeding mechanism. Only one material is placed at each positioning station, and the materials are transported to the distant end by the main conveyor belt 1. When a material passes the first photoelectric sensor, the first photoelectric sensor sends a detection signal to the main control unit. When the first material is detected, the counting module records count 1, and the main control unit calls the pre-stored parameters and the speed information of the main conveyor belt 1 to calculate the delay time for the material to reach the nearest end pushing mechanism 3. When the second material is detected, the counting module records count number 2, and the main control unit calculates the delay time for the material to reach the secondary near-end push mechanism 3 in the same way. Similarly, when the 3rd to 6th material is detected, the counting module records the counts from 3rd to 6th respectively, and the main control unit calculates the delay time for each material to reach the corresponding pushing mechanism 3. If a certain positioning station is empty, the first photoelectric sensor does not detect any material, the counting module skips the counting corresponding to that positioning station and does not record the sequence number. The corresponding push mechanism 3 will also not receive an action command.

[0045] (III) Successively pushing and receiving When the delay time corresponding to the first material ends, the main control unit sends an action signal to the drive component of the nearest pushing mechanism 3: if it is a drive type of electromagnetic clutch 32 + brush shaft 31, the corresponding electromagnetic clutch 32 is energized and engaged, and the pushing mechanism 3 rotates with the brush shaft 31, sweeping the first material into the nearest branch transmission unit 2 through the brush bristles; if it is a drive type of linear / rotary motion mechanism, the corresponding drive component is activated, and the pushing mechanism 3 pushes the first material into the nearest branch transmission unit 2 through the pushing plate or rotation action.

[0046] After the material enters the branch line conveyor unit 2, if it is a chute type, the material rolls along the inner wall of the chute under the action of gravity and eventually falls into the first set of corresponding scoop troughs 42; if it is a branch line conveyor belt type, the main control unit controls the operation of the branch line conveyor belt to smoothly transport the material to the first set of corresponding scoop troughs 42. After the material falls into the scoop trough 42, the corresponding second photoelectric sensor detects the material and sends a "material in place" signal to the main control unit.

[0047] Subsequently, the delay time corresponding to the second material ends, the main control unit controls the secondary near end pushing mechanism 3 to push the second material to the secondary near end branch transmission unit 2, and finally it falls into the first group corresponding position of the scoop trough 42, and the corresponding second photoelectric sensor sends a "material in place" signal. Similarly, after the corresponding delay time, the 3rd to 6th materials are pushed to their respective branch transmission units 2 by the corresponding pushing mechanism 3, and finally fall into the first group of corresponding scoop troughs 42. All the second photoelectric sensors will return a "material in place" signal.

[0048] (iv) Synchronous release and reset After receiving the "material in place" signals from all the second photoelectric sensors, the main control unit delays for 0.5-2 seconds to ensure material stability, and then sends a drive signal to the flipping drive. The flipping drive drives the flipping shaft 41 to rotate 180°, causing the six synchronous feeders 4 to flip synchronously. The first set of scoop troughs 42 flips downward, and the six pieces of material in the trough fall synchronously under the action of gravity, entering the next process's mesh-covering station. At the same time, the second set of scoop troughs 42 flips synchronously to the docking position, precisely aligning with the discharge end of the six branch transmission units 2, waiting to receive the next batch of material.

[0049] (v) Cyclic Operation When the 6th material is successfully pushed and the sequence number recorded by the counting module reaches 6, the counting module automatically resets to zero. Subsequently, the device repeats the above process of "material feeding and detection counting - sequential pushing and receiving - synchronous release and reset" to continuously achieve multi-channel, seamless material feeding.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-lane gapless dosing device, characterized by, The utility model relates to a kind of material conveying device, including Main conveying belt (1), continuously rotating, the outer surface of its body is provided with barrier (11) spaced apart equidistantly along conveying direction, and the positioning station for accommodating single material is formed between adjacent two barrier (11); N branch line conveying units (2), N≥1, the feeding end of each branch line conveying unit (2) is close to the side of main conveying belt (1), and it is arranged equidistantly along the conveying direction of main conveying belt (1) with the spacing of barrier (11); N push mechanism (3) is located above main conveying belt (1) and corresponds to N branch line conveying unit (2) respectively, for pushing material from the positioning station of main conveying belt (1) into corresponding branch line conveying unit (2); N synchronous feeder (4) is arranged at the discharging end of N branch line conveying unit (2) respectively, for controlling the release timing of material in branch line conveying unit (2); Material detection counting module (5) is arranged above main conveying belt (1) and is located at the upstream side of N push mechanism (3), for detecting and counting the material passing through it on main conveying belt (1), and automatically resetting when counting reaches N; Material in-place detection unit (6) is arranged above N synchronous feeder (4) respectively, for detecting whether the material in corresponding synchronous feeder (4) is in place; Main control unit is signal connected with N push mechanism (3), N synchronous feeder (4), material detection counting module (5) and material in-place detection unit (6) respectively, for controlling the action timing of each component.

2. The multi-lane gapless dosing apparatus of claim 1, wherein, When branch line conveying unit (2) is chute, the chute is arranged obliquely, and the height of feeding end is higher than that of discharging end; when branch line conveying unit (2) is branch line conveying belt, the branch line conveying belt is signal linked with main control unit, and the conveying speed can be adjusted.

3. The multi-lane gapless dosing apparatus of claim 1, wherein, Push mechanism (3) is driven by linear motion mechanism or rotary motion mechanism, the linear motion mechanism is any one of push-pull electromagnet, air cylinder, oil cylinder or crank connecting rod mechanism, and the rotary motion mechanism is any one of rotary electromagnet or motor.

4. The multi-lane gapless dosing apparatus of claim 1, wherein, N push mechanism (3) is transmission connected with brush shaft (31) through N electromagnetic clutch (32), brush shaft (31) is continuously rotated by brush driving part, electromagnetic clutch (32) is signal connected with main control unit; push mechanism (3) includes circular brush base body, and the outer circular surface of brush base body is provided with partial or whole hair planting area.

5. The multi-lane gapless dosing apparatus of claim 1, wherein, Synchronous feeder (4) is fixedly connected with turnover shaft (41), turnover shaft (41) is transmission connected with turnover driving part, and the turnover driving part is servo motor, stepper motor+limit switch or speed reducer+encoder; each synchronous feeder (4) is provided with two symmetric circumferential array of miter groove (42) about turnover shaft (41).

6. The multi-lane gapless dosing apparatus of claim 1, wherein, It also includes speed adaptation module, the speed adaptation module is speed sensor, speed sensor is signal connected with main control unit, for detecting the rotation speed of main conveying belt (1) in real time;Or main control unit prestores fixed rotation speed parameter of main conveying belt (1), and speed sensor is not configured.

7. The multi-lane gapless dosing apparatus of claim 1, wherein, The main control unit is internally provided with a timing module, a counting module and a parameter storage module, and pre-stores the interval parameters of the stop blocks (11) and the interval parameters of each pushing mechanism (3) and the material detection counting module (5).

8. A multi-lane gapless dosing method, implemented on the basis of a multi-lane gapless dosing device according to any one of claims 1 to 7, characterized in that The method comprises the following steps, S1. initialization setting, selecting the type of branch transmission unit (2) according to the characteristics of the material to be processed, inputting the interval parameters of the stop blocks (11), the interval parameters of the pushing mechanism (3) and the material detection counting module (5) and the rotating speed parameter of the main conveying belt (1) in the main control unit; S2. conveying start, starting the main conveying belt (1) and the pushing mechanism (3); S3. material loading and detection counting, placing the materials one by one into the positioning stations of the main conveying belt (1), and conveying the materials along with the main conveying belt (1); when the materials pass through the material detection counting module (5), the counting module records the material serial number, and skips the corresponding serial number counting if no material is detected; S4. pushing control, the main control unit calculates the delay time of the material reaching the corresponding pushing mechanism (3) according to the material serial number, the pre-stored interval parameters and the conveying belt speed information; after the delay time ends, the corresponding pushing mechanism (3) is controlled to act to push the material to the corresponding branch transmission unit (2), and the material is conveyed to the synchronous feeder (4) through the branch transmission unit (2); S5. synchronous feeding control, the material in-place detection unit (6) detects the material in-place state in the synchronous feeder (4) in real time and feeds back to the main control unit; when all the material in-place detection units (6) feedback that the materials are in place, the main control unit controls the synchronous feeder (4) to feed synchronously; S6. cyclic operation, when the serial number recorded by the counting module reaches N, the zero is automatically cleared, and steps S3-S5 are repeated to realize continuous and non-missing feeding.

9. The multi-bin no-gapped continuous feed method of claim 8, wherein, In step S1, when the material to be processed is easy to roll, a chute is selected as the branch transmission unit (2), and when the material to be processed is easy to damage or irregular in shape, a branch transmission belt is selected as the branch transmission unit (2).

10. The multi-bin no-gapped continuous feed method of claim 8, wherein, In step S4, the calculation method of the delay time is the interval between the pushing mechanism (3) and the material detection counting module (5) divided by the rotating speed of the main conveying belt (1).

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