38 results about "Check weigher" patented technology

The application relates to an automatic feeding device of a capsule weight checking scale, which comprises a material bin, a top feeding plate and a driving device, wherein the top feeding plate is a flat plate perpendicular to the horizontal plane, the top feeding plate penetrates the bottom of the material bin and extends into the material bin to vertically move up and down, the two side faces of the top feeding plate are planes perpendicular to the horizontal plane and the plane of the flat plate, the projection of the top of the top feeding plate on the plane of the flat plate is a straight edge, the straight edge is called the top straight edge of the top of the top feeding plate, the top straight edge of the top of the top feeding plate is inclined to the horizontal plane and the length is greater than the length of one capsule, the top of the top feeding plate is formed into a long strip-shaped equal-section groove along the length direction of the top straight edge of the top of the top feeding plate, a long strip-shaped hole is formed on the discharge side wall, the bottom of the long strip-shaped hole is formed into a discharging groove connecting the inside and outside of the material bin along the thickness direction of the discharge side wall, the discharging groove is inclined to the lower part of the outside of the material bin, the inner side wall of the groove body of the discharging groove is a cylindrical surface, the groove and the discharging groove form a discharging channel of the material bin, the driving device is located outside the material bin, and the top feeding plate is connected with the driving device.

The invention relates to the technical field of food detection and conveying devices, in particular to a conveying device for safety production and detection of crispy beef steak, which comprises a dynamic checkweigher, the dynamic checkweigher is composed of a weighing sensor, a weighing controller, a table board supporting piece, an input table board and an output table board, a distinguishing component is arranged on the left side of the dynamic checkweigher, and the distinguishing component is arranged on the right side of the dynamic checkweigher. The right side of the dynamic checkweigher is provided with a conveying assembly in a non-contact manner, the conveying assembly comprises a first conveying belt module, and the device is characterized in that the side of a plate frame of the first conveying belt module is provided with a magnet insertion block in an embedded and inserted manner through an insertion groove. By arranging the magnet inserting blocks and the plug pins, rapid disassembly and assembly of baffle accessories are achieved, the magnet inserting blocks are inserted into the inserting grooves in the side edges of the plate frame of the first conveying belt module, magnetic attraction pieces on the inner walls of the inserting grooves are in magnetic attraction butt joint with the magnet inserting blocks, and the inserting rod ends of the plug pins penetrate through the side edges to be locked and fixed with the interiors of the magnet inserting blocks; and the assembly can be completed within five seconds.

The utility model discloses a checkweigher of a bag feeding machine, which comprises an installation box, a microprocessor, a display and a weighing sensor are arranged on the installation box, the display and the weighing sensor are respectively and conductively connected with the microprocessor, a weighing plate is arranged on the installation box, the weighing sensor is arranged on the weighing plate, the weighing plate is connected with a transverse plate, and the transverse plate is connected with the display. Two symmetrically-arranged bag clamping finger air cylinders are installed on the two sides of the transverse plate, the two bag clamping finger air cylinders are connected with an air pump through electromagnetic valves respectively, the electromagnetic valves are connected with a microprocessor, the bag clamping finger air cylinders are provided with clamping hands which can be close to or away from each other, and the inward side walls of the clamping hands are detachably connected with rubber plates. Therefore, the technical effect of convenient and reliable detection is realized, and the qualified rate of finished products is greatly improved.

The utility model relates to a monascus product packaging system which comprises a packaging machine. A checkweigher; the roller conveyor is used for receiving the packaged products output by the checkweigher and conveying the packaged products to the stacking station; the flattening device comprises a flattening roller and a jacking roller, the flattening roller is arranged above the roller conveyor and rotatably connected to the roller conveyor, the axis of the flattening roller is horizontal and perpendicular to the conveying direction of the roller conveyor, the flattening roller and the conveying face of the roller conveyor are arranged in a spaced mode, the axis of the jacking roller is parallel to the axis of the flattening roller, and the jacking roller can vertically ascend and descend. The jacking roller can ascend to protrude out of the upper portion of the conveying face of the roller conveyor or descend to be flush with the conveying face of the roller conveyor, the jacking roller and the flattening roller are sequentially arranged in the conveying direction of the roller conveyor, and the flattening device further comprises a driving part used for driving the jacking roller to ascend and descend. According to the stacking device, when packaged products are conveyed to a stacking station in a uniformly distributed state, workers can directly carry and stack the packaged products, the labor intensity is reduced, and the efficiency is improved.

The present invention discloses a production process and production line for filling 5-10L bottled liquids. The production process flow is as follows: Step A, an intelligent high-viscosity filling machine automatically fills the receiving bottles, and then moves them into a fully automatic follow-up capping machine, where the capping machine screws the bottle caps onto the receiving bottles; a weight checker performs weight detection, and the qualified finished products are sent to a labeling machine for automatic labeling; Step B, a fully automatic case opener opens the packing cases and sends them to a fully automatic palletizer for palletizing; Step C, a fully automatic case packer packs the receiving bottles into the packing cases, and then a fully automatic case sealer closes the packing cases containing the receiving bottles; Step D, a fully automatic strapping machine straps the packing cases. This technical solution realizes the automatic filling of the entire production line, saves manual operations and manual controls between production lines, improves the filling efficiency, can improve the filling accuracy, increase the finished product rate, and prevent the waste of liquids.

This invention relates to a fast-hardening, early-strength dry-mix mortar mixer and its mixing process, belonging to the technical field of mixing equipment. It includes a mixing device with a support column mounted on top. A support base is mounted inside the support column, and a filter screen is mounted on top of the support base. A first telescopic checkweigher is mounted on top of the mixing device, and a feeding hopper is mounted on top of the first telescopic checkweigher. The feeding hopper is located inside the support column and below the filter screen. A first baffle is provided on the top of the feeding hopper, and a first cylinder is mounted at the bottom of the first baffle. This invention, through a fast-hardening, early-strength dry-mix mortar mixer, solves problems of clumping, proportioning deviation, and dust through pretreatment filtration, precise checkweighing, and closed-loop feeding; it integrates online sampling and simulation experiments for real-time quality monitoring; and it uses an automatic closed-loop discharge system with a cylinder to achieve efficient, stable, and environmentally friendly continuous production, ensuring consistent batch quality of mortar.

The utility model discloses an anti-seismic packaging checkweigher, which relates to the technical field of checkweighers and comprises a first moving assembly, a buffer assembly and a plurality of conveying devices. The buffer assembly comprises a bottom plate, the middle of the upper end of the bottom plate is fixedly connected with a checkweigher body, the upper end of the checkweigher body is fixedly connected with a partition plate, the middle of the bottom plate is symmetrically and fixedly connected with third electric push rods, the bottom plate is symmetrically and fixedly connected with second supporting plates, and the two second supporting plates are jointly and slidably connected with a placement frame. The middle of the first moving assembly is slidably connected with a second moving assembly. Vibration generated in the placing process of the placing frame can be absorbed through the partition plate, after the upper end of the partition plate makes contact with the lower portion of the placing frame, a piston rod of the third electric push rod contracts, contact between the output end of the piston rod of the third electric push rod and the placing frame is relieved, and then objects can be weighed through the checkweigher body. Therefore, the damage to the article in the heavy process can be reduced or even avoided.

The utility model provides a multifunctional rejector and a metal detector comprising the same, the multifunctional rejector comprises a rack and an electric control box, and the electric control box is arranged on the side part of the rack; the pull-down removing mechanism is mounted at the top of the rack; the pull-down power source assembly is installed on the side portion of the rack, connected with the pull-down removing mechanism and used for driving the pull-down removing mechanism to turn up and down. The push plate removing mechanism is installed on the side face of the upper portion of the rack and located above the pull-down removing mechanism. The pull-down removing mechanism is connected with the electric control box, and the push plate removing mechanism and the pull-down removing mechanism are controlled to be started and stopped through the electric control box. The pull-down rejecting device combines pull-down rejecting and push plate rejecting, is arranged at the back of a production line of a metal detector or a dynamic checkweigher, and can adapt to dry or frozen and humid environments and the like. Pull-down removal solves the problem of removal of bagged thin products, and push plate removal solves the problem of removal of bagged thick products or boxed products.

The invention discloses an automatic weighing device for cream production, which relates to the technical field of cream medicament production weighing and comprises a dynamic checkweigher and a rejecting mechanism. The device further comprises an automatic unqualified product rechecking mechanism. The unqualified product automatic reinspection mechanism comprises a static electronic scale and an automatic sequencing transition mechanism, the automatic sequencing transition mechanism and the removing mechanism are oppositely distributed, and the automatic sequencing transition mechanism is used for putting cream products with unqualified weights onto the static electronic scale one by one. According to the invention, the cream products with unqualified weights, which are rejected by the rejecting mechanism on the dynamic checkweigher, are put onto the static electronic scale one by one by virtue of the automatic sequencing transition mechanism, and the cream products are automatically rechecked and weighed by virtue of the static electronic scale; and mistaken removal of cream products caused by weighing data errors of the dynamic checkweigher due to influence of external factors such as vibration in the operation process of mechanical equipment is prevented.

The utility model relates to a checkweigher conveyer belt with a quick release locking structure, which comprises a frame and a conveying mechanism, the conveying mechanism comprises a conveying frame and a tension roller, one side of the conveying frame is hinged with the frame, the other side of the conveying frame is fixed with the frame in an opening and closing manner through the quick release structure, and the tension roller is movably connected with the conveying frame. And the tensioning roller and the conveying frame move relatively to tension / loosen the belt. Through the arrangement of the quick-release structure, one side of the conveying mechanism can be separated from the frame through the quick-release structure, a notch is formed on one side after separation to facilitate disassembly and assembly of the belt, the other side of the conveying mechanism is hinged to the frame, the belt can be taken down from the position of the notch by loosening the belt through the tensioning roller, and operation is convenient; and for the whole production line, the working efficiency of the checkweigher is greatly improved.

A multi-station packaging bag sorting and transfer output mechanism, relating to the field of high-speed packaging machine equipment technology, includes a bag-dispensing mechanism, a bag-sorting mechanism, a rotary suction cup mechanism, and a multi-row checkweighing assembly. The bag-sorting mechanism includes a bag-sorting bin and a push-out mechanism. The bag-sorting bin is divided into multiple bag-sorting units arranged side-by-side. Each bag-sorting unit has a push block actuation hole at the front and a push-out hole at the rear. The push-out mechanism includes a push block and a cylinder, used to push the lower end of the packaging bag in the corresponding bag-sorting unit out through the push-out hole. The bag-dispensing mechanism includes a first rotating shaft and a dispensing plate, used to push the packaging bag into the bag-sorting unit. The rotary suction cup mechanism includes a second rotating shaft and a suction cup assembly, the suction cup assembly including multiple suction cup units, used to pick up the lower end of the packaging bag. The multi-row checkweighing assembly is used to weigh and transfer the packaging bags. This invention solves the technical problems of existing high-speed packaging machine output devices, such as the lack of grouping function, difficulty in matching single-bag output with a single-bag checkweigher at high speeds, and the inability to check the weight of individual bags after stacking in double-packet output.

The utility model relates to a checkweigher conveyor belt with a horizontal adjusting function, which comprises a conveyor belt frame, a driving roller and a driven roller are arranged on the conveyor belt frame, a horizontal adjusting mechanism is arranged on the conveyor belt frame, and the shaft end of the driven roller is in sliding connection with the conveyor belt frame through a sliding part. And the distance between the driving roller and the driven roller is adjusted during horizontal adjustment. By arranging the sliding driven roller, the driven roller can be fixed to the conveying belt frame or other conveying devices, and in the horizontal adjustment process of the conveying belt frame, the distance between the driven roller and the driving roller can be changed accordingly to adapt to the current distance; after adjustment is completed, the conveying belt is tensioned downwards from the middle section of the conveying belt through the tensioning mechanism, and the adaptive compatibility capacity of the checkweigher conveying belt and other conveying devices on a production line is effectively improved in the horizontal adjustment process.

The utility model provides a nano drug particle encapsulation device, relates to drug particle encapsulation technical field, including encapsulation machine and on-line checkweigher, the one side of encapsulation machine is provided with the discharge port, the discharge port is located on the one side of on-line checkweigher, one end of on-line checkweigher is equipped with the frame body, the one side of on-line checkweigher is equipped with the on-line checkweigher is equipped with the on-line checkweigher, and the on-line checkweigher is equipped with the on-line checkweigher. A pushing mechanism is arranged on one side of the frame body, a conveying belt is installed on one side of the online checkweigher, and collecting frames are installed on one side of the online checkweigher and one side of the conveying belt respectively. According to the device, a control panel can automatically control an electric cylinder to drive a push plate to push unqualified medicine particles onto a conveying belt, so that the packaging efficiency is indirectly improved, the unqualified medicine particles can be effectively sorted, and the practicability is greatly improved through the design.

The utility model discloses a kind of online check weight weighing devices, it is related to the technical field of check weight scale, the online check weight weighing device, including fixed platform, the side fixed connection of fixed platform has support leg, further include: setting in the air pump of fixed platform side, the side fixed connection of air pump has cleaning assembly, the cleaning assembly includes spray head and cleaning shaft;Setting in the support plate of cleaning shaft side, the side fixed connection of support plate has fixed block, the side fixed connection of fixed block has gas delivery plate;Setting in the block of fixed platform side, the side fixed connection of block has buffer assembly, the buffer assembly includes connecting column one and damping hydraulic rod, the side sliding connection of connecting column one has moving arm.The utility model is set through cleaning assembly, reaches the effect of cleaning, facilitate to remove the debris or dust remaining on conveyer belt, prolong equipment service life, reduce manual cleaning frequency.

The application relates to a switchable mode dynamic checkweigher, a weighing method, a weighing system and a computer readable medium, the dynamic checkweigher comprising: a weighing mechanism comprising a plurality of scales arranged horizontally and in parallel, and a weighing sensor arranged on each scale; a measured object detection device comprising a first sensor and a second sensor, and used for respectively outputting a length signal and a position signal of a measured object; and a controller in signal connection with the weighing mechanism and the measured object detection device, the controller being configured to: in response to a working mode of the dynamic checkweigher being a single scale mode, control each scale to operate synchronously, and calculate the weight of a single measured object according to the length signal, the position signal and a weighing signal; or in response to the working mode of the dynamic checkweigher being a multi-scale mode, control each scale to operate synchronously or asynchronously, and calculate the weight of each measured object according to the position signal and the weighing signal. The dynamic checkweigher has good universality.

The invention relates to the technical field of deviation inspection, and discloses a liquid filling line net content accumulated deviation and inspection method, which comprises the following steps: setting delay time and delay error of each filling head on a filling line; net content deviation caused by the delay error is calculated according to the filling speed and the average flow of the filling line; the accumulated net content of each filling head at each moment is collected, and the value of the accumulated net content is pressed into the stack corresponding to each filling head; and taking out the accumulated net content before delay corresponding to each filling head at the current moment from the stack. By introducing the concept of the virtual filling line and combining the stack data storage and time alignment technology, the problem that the filling head data and the total checkweigher data are not synchronous due to material transmission delay is effectively solved, so that real-time closed-loop monitoring of the whole flow of the filling process is realized, and the working efficiency is improved. And the accuracy of net content detection and the intelligent level of system control are obviously improved.

The utility model relates to a conveyor belt of a checkweigher, which comprises a first conveying support, a driving roller capable of driving rotation is arranged at one end of the first conveying support, a second conveying support capable of adjusting the inclination angle is arranged at one end, opposite to the driving roller, of the first conveying support, and a first driven roller is arranged at one end of the second conveying support. A conveying belt is connected between the driving roller and the first driven roller, a second driven roller and a third driven roller are arranged at the end, opposite to the driving roller, of the first conveying support, a passing gap allowing the conveying belt to pass through is formed between the second driven roller and the third driven roller, and the part, rotating to the lower side, of the conveying belt always passes through the passing gap. The second conveying support is provided with an adjusting and supporting device for driving the second conveying support to adjust the angle, and the tail end of the conveying belt is provided with an inclined section which inclines downwards and can adjust the angle, so that the materials incline firstly and then fall off, the falling speed is slowed down, the impact force is reduced, the materials fall into the collecting device more accurately, and the situation that the materials are scattered and stacked unevenly is reduced.

The utility model discloses a feeding conveyor belt of a high-speed checkweigher, including a mounting bracket, a mounting seat, a first motor, a second motor, a rotating shaft, a transmission shaft, a driving wheel, a driven wheel and a base, a base is provided on the lower side of the mounting bracket, a plurality of support columns are provided on the lower side of the base, and the plurality of support columns are distributed in a rectangular shape at the four corners of the base, a mounting seat is provided on one side of the mounting bracket, a first motor is provided on one side of the mounting seat, a screw is provided at the shaft end of the first motor, the screw extends into the mounting seat, a guide rod is provided near the screw in the mounting seat, a plurality of adjustment seats are sleeved on the screw and the guide rod, a plurality of adjustment seats are provided with lifting rods, a plurality of lifting rods are provided with a fixed plate on one side away from the adjustment seat, and a plurality of fixed plates are provided with partitions. The utility model has a simple structure and can separate the accumulated products so as to facilitate the subsequent removal of unqualified products.

The utility model relates to the field of packaging product production equipment, and discloses an automatic carton unloading device which comprises a bottom plate, a back plate is connected to the side edge of the bottom plate, a conveying mechanism is arranged on the side face of the upper end of the back plate, the conveying mechanism is used for conveying cartons and comprises a conveying belt, a weight checking mechanism is arranged on the upper surface of the bottom plate, and the conveying belt is used for conveying the cartons. The weight checking mechanism is used for detecting the overall weight of the paper box and comprises a weight checking scale and a weight checking scale conveying belt. The conveying belt cooperates with the conveyor belt of the checkweigher, so that paper boxes can be quickly conveyed and temporarily stored, and the checkweigher can be accurately checked. The stability and accuracy of corresponding links are guaranteed through the limiting fences and the wind shields. The discharging mechanism is matched with various paper boxes through a fixed and adjustable bend and an adjustable connecting plate. The discharging roller is matched with the rubber ring, so that the paper box is conveyed at a constant speed. A display screen of the checkweigher displays data in real time, and each part is designed in a modularized manner, thereby facilitating operation and maintenance. The input and output conveyor belts realize automatic feeding and discharging of cartons, automation is improved, and cost is reduced.

The utility model relates to a checkweigher, which comprises a base frame and an electric control box arranged on one side of the base frame, and is characterized in that a panel is arranged above the base frame in the axial direction, an opening is axially formed in the panel in a penetrating manner, a weighing device is arranged in the opening, a pushing device for pushing materials to move is arranged on the panel, and a weighing device is arranged on the panel. The pushing device does not make contact with the weighing device, the materials are statically weighed on the weighing device, the conveying device does not make contact with the weighing sensor, and the situation that the weighing precision is affected by vibration of the conveying device is avoided.

The utility model relates to the technical field of checkweighers, and discloses an automatic sorting checkweigher which comprises a bottom plate, a first conveyor belt is rotatably arranged outside two first rotating rollers, discharge ports are formed in two first baffles, threaded rods are rotatably arranged between multiple first rotating seats in pairs, and the threaded rods are rotatably arranged between the first rotating seats in pairs. A first moving rod and a second moving rod are arranged on the outer walls of the four threaded rods in pairs in a threaded mode, the bottom end of the first moving rod is fixedly connected with a first push plate, and the bottom end of the second moving rod is fixedly connected with a second push plate. According to the checkweigher capable of automatically sorting, through the arrangement of the first push plate, the second push plate and the discharge port, products which are overweight or unqualified in weight can be sorted and removed from the conveying belt, products which meet the weight standard enter the next procedure through conveying of the first conveying belt, automatic connection of weighing and sorting is achieved through the device, and the production efficiency is improved. The problem of low efficiency caused by weighing and sorting separation in a traditional checkweigher is avoided.

The present invention discloses an automatic sorting and packaging production line for textiles, which pastes labels containing product information on products through a feeding labeling line, and links signals of a material receiving information collection mechanism with a checkweigher, a rejecting mechanism, a compression sealing machine, a stacking robot, a compression packaging machine, etc., to perform product inspection, compress and stack products according to specifications, and package them in bags or boxes, thereby realizing automated operation of multiple processes and reducing high-density and low-efficiency operations in the textile industry.

The utility model relates to the technical field of checkweighers, and provides a checkweigher with limiting and fixing functions. The device comprises a conveyor belt and a limiting assembly, the conveyor belt is fixedly assembled on a weighing platform of the checkweigher, and tested products pass through the conveyor belt one by one; the limiting assembly comprises a fixing support and a limiting baffle, the fixing support is fixedly assembled above the conveying belt, and the limiting baffle is assembled on the fixing support in a sliding mode in the horizontal direction; the limiting baffle is an arc-shaped plate, the side, close to the feeding end of the conveying belt, of the limiting baffle is bent towards the outer side, and the limiting baffle slides on the fixing support in the direction perpendicular to the conveying direction of the conveying belt. The checkweigher with the limiting and fixing functions can adapt to products of various transverse sizes without additional adjustment, the limiting and fixing effects are ensured for the products of different sizes, and the stability of a checkweigher result is improved.

The utility model relates to the technical field of capsule screening equipment, in particular to a capsule screening checkweigher for multi-stage corrugated vibration blanking, which comprises a blanking hopper, a blanking vibration plate arranged below the bottom discharge end of the blanking hopper, a queuing vibration plate arranged at one end of the blanking vibration plate, a weighing platform arranged at one end of the queuing vibration plate, and a weighing platform arranged at the other end of the weighing platform. A material guide plate is arranged at one end of the weighing platform, a transition plate is arranged at one end of the material guide plate, and a vertical removing baffle capable of moving up and down is arranged between the material guide plate and the transition plate. According to the capsule screening checkweigher for multi-stage corrugated vibration blanking, the corrugated distribution channel of the blanking vibration plate is matched with the splitter plate of the queuing vibration plate, so that capsules are automatically divided into a plurality of queuing channels, the capsules can enter the weighing platform in order one by one, and the problem of material disorder caused by traditional single linear vibration or vertical pipeline queuing is solved. The queuing vibration plate is lower than the discharging vibration plate, gradient type vibration conveying is formed in cooperation with independent driving of the first linear vibrator and the second linear vibrator, and capsules are prevented from being stacked or stuck.

The invention discloses an automatic checkweigher and a control system thereof.The automatic checkweigher comprises a supporting seat, a conveying seat is fixedly installed at the top end of the supporting seat, a checkweigher shell is arranged on one side of the conveying seat, and blocking assemblies are fixedly installed on the two sides of the conveying seat. The weighing lower limit sub-module is used for setting the minimum weight of weighing and sorting the weight of products in a weighing process, so that traditional manual sorting is replaced, and time and labor are saved; the fan and the impurity removal pipeline are arranged, the fan is started after being powered on, the fan extracts gas with the clean external environment through the extraction pipeline, the extracted gas is conveyed to the gas spraying table through the conveying steel pipe, and the gas spraying table sprays out the gas to clean impurities attached to the surface of the connecting belt; the blown impurities are directionally guided by the guide plate and then discharged to the outside through the impurity discharging pipeline, traditional manual cleaning is replaced, and the product weighing accuracy is improved.

The utility model belongs to the technical field of dairy product production equipment, and discloses a dairy product bag body sealing detection device and a dairy product packaging production system. The lifting mechanism is located above the belt type checkweigher and comprises a compression air cylinder and a compression rod, one end of the compression rod is connected with the compression air cylinder, the other end of the compression rod is connected with a pressing plate, the pressing plate is parallel to the surface of the conveying belt, and the compression air cylinder is connected with the compression air cylinder. The compression cylinder drives the compression rod to drive the pressing plate to reciprocate up and down; and the belt type checkweigher and the compression air cylinder are electrically connected with the control system. In the detection process, the control system automatically controls the lifting mechanism to ascend and descend and also automatically controls the belt type checkweigher to work, manual one-by-one detection is not needed in the whole process, manpower is saved, especially when the detection amount is large, the detection efficiency is high, and the device is suitable for continuous detection on an assembly line.

A high-precision sliding groove weight checking scale comprises a control cabinet, a mounting base, a strain type weighing sensor and a weighing sliding groove, the weighing sliding groove is connected with the bearing end of the strain type weighing sensor located below the weighing sliding groove, the fixed end of the strain type weighing sensor is connected with a mounting bottom plate located below the strain type weighing sensor, and the strain type weighing sensor is electrically connected with the control cabinet. The weighing chute is a long-strip linear smooth chute body, the strain type weighing sensor is used for compensation, the weighing chute is used for compensation, and the weighing chute is connected with the bearing end of the strain type weighing sensor which is located below the weighing chute and is used for compensation. The fixed ends of the strain type weighing sensors for compensation are connected with the mounting bottom plate positioned below the strain type weighing sensors, the strain type weighing sensors for compensation are electrically connected with the control cabinet, and the strain type weighing sensors for compensation and the strain type weighing sensors for compensation are arranged in a close-range, side-by-side and parallel manner; and the weighing chute for compensation and the weighing chute for compensation are also arranged in a close distance, side by side and in parallel.