CN209825797U - High-sensitivity centralized weighing and counting material management cabinet - Google Patents

Abstract

The utility model discloses a high-sensitivity centralized weighing and counting material management cabinet, which comprises a cabinet body, a cabinet body chassis, an auxiliary supporting unit and a control and measurement module, wherein the cabinet body is arranged on the cabinet body chassis, a plurality of stacked material storage drawers are arranged in the cabinet body, and a weighing unit is arranged on the cabinet body chassis to measure the weight of the whole material management cabinet in real time; the auxiliary supporting unit applies upward constant supporting force to the bottom frame of the cabinet body, and the amplitude of the supporting force is smaller than the weight of the frame of the cabinet body when the material is empty; and the control measurement module controls the opening of the drawer, and calculates and displays the quantity of the materials in the material management cabinet according to the parameters of the weighing sensor. The utility model discloses an auxiliary stay mechanism can produce ascending invariable holding power to the cabinet body in the measurement process, and most cabinet body dead weight is fallen in the balance, alleviates the load scope of sensor, but does not influence measurement accuracy, effectively reduces the sensor range.

Description

High-sensitivity centralized weighing and counting material management cabinet

Technical Field

The utility model belongs to the technical field of the storage management system, a high sensitivity material management cabinet that intelligent material management cabinet, especially a range upon range of setting, concentrated weighing is related to.

Background

In the material and part management and use of high-end intelligent manufacturing and maintenance industry, the defects of low labor efficiency, untimely part and material supply, inaccurate quantity statistics and the like exist, the requirements of standardization and fine management of material and part warehouse entry and exit can not be met, and an intelligent material management technology is generated for the purpose.

Chinese patent "material management device, application No. 201610303077.5" discloses a material management device, which comprises a drawer type material cabinet, wherein the material cabinet comprises a box type housing and a plurality of drawers, a plurality of material storage units are arranged in the drawers, and the drawers are respectively equipped with a locking mechanism. The utility model has the advantages that: by means of a computer management system, required materials can be quickly searched, the characteristic that manual searching is slow is avoided, but a material weighing unit is not arranged, the quantity of the materials in a material drawer cannot be given, and therefore prompt materials are supplemented timely.

The 'intelligent material management cabinet with quantity display and distribution system' published in 2017 application number 201710769328.3 discloses an intelligent material management cabinet with quantity display, which comprises a cabinet body, a control system and a plurality of material drawers with weighing functions, wherein each material drawer is locked on the cabinet body through an electric control lock, a weighing sensor is arranged at the lower part of each material drawer, and the intelligent material/part management cabinet is used for carrying out identity recognition management on a material taking person, can display the quantity of materials in real time and report data statistics through the internet, and realizes modernization and fine management of materials and parts. However, the material cabinet has the problems that each drawer is provided with a weighing sensor, the cost of the system is increased, and the calibration link and the measurement uncertainty of weighing are increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high sensitivity concentrates material management cabinet of count of weighing, same weighing unit realizes weighing to a plurality of material drawers on its upper strata to count and show according to the weight of material. The auxiliary supporting mechanism is adopted to overcome the influence of the self-weight of the cabinet body on the measuring range of the sensor, and the measuring sensitivity is greatly improved.

The technical scheme of the utility model as follows:

a high-sensitivity centralized weighing and counting material management cabinet comprises a cabinet body, a cabinet body bottom frame, an auxiliary supporting unit and a control measuring module, wherein the cabinet body is arranged on the cabinet body bottom frame, a plurality of stacked material storage drawers are arranged in the cabinet body, and a weighing unit is arranged on the cabinet body bottom frame and is used for measuring the weight of the whole material management cabinet in real time; the auxiliary supporting unit applies upward constant supporting force to the bottom frame of the cabinet body, and the amplitude of the supporting force is smaller than the weight of the frame of the cabinet body when the material is empty; and the control measurement module controls the opening of the drawer, and calculates and displays the quantity of the materials in the material management cabinet according to the parameters of the weighing sensor.

Among the above-mentioned high sensitivity concentrates material management cabinet of weighing and counting, weighing unit including setting up a plurality of weighing sensor on cabinet body chassis, the lower margin is installed to weighing sensor's stiff end, the expansion end passes through the bolt coupling on the bearing plate of cabinet body chassis, the weight of material management cabinet is acted on weighing sensor through the bearing plate to the weight of material management cabinet is obtained in the measurement.

In the high-sensitivity centralized weighing and counting material management cabinet, the auxiliary support units are a plurality of piston rod units arranged below the underframe of the cabinet body; the piston rod unit comprises a sealing cylinder body and a rod body which slides up and down in the sealing cylinder body, an upper cavity and a middle cavity are respectively formed between the upper end part and the middle part of the rod body and the cylinder body of the sealing cylinder body, the upper cavity and the middle cavity are communicated through a plurality of through holes, and a one-way inflation valve is arranged at the upper end of the sealing cylinder body and used for inflating a pressure medium into the upper cavity.

Among the above-mentioned high sensitivity concentrates material management cabinet of weighing and counting, be provided with the sealing washer between sealed cylinder body and the body of rod.

In the material management cabinet with high sensitivity and centralized weighing and counting, the auxiliary supporting unit is a lever counterweight unit, the fulcrum of the lever is arranged on a lever base, the short arm end applies upward force to the bottom frame of the cabinet body, and the long arm end of the lever is fixedly connected with the counterweight.

In the material management cabinet with high sensitivity and centralized weighing and counting, a plurality of lever counterweight units are arranged below the material management cabinet, the fulcrum of each lever is fixed on a lever base with adjustable corresponding height, the force application point of the short arm end is arranged on a bearing plate at the periphery of the bottom frame of the cabinet body, and the long arm end of each lever is fixedly connected with the same counterweight through a pressing block.

In the high-sensitivity centralized weighing and counting material management cabinet, the moment ratio of the lever is 10-20: 1.

In the high-sensitivity centralized weighing and counting material management cabinet, the control and measurement module comprises an upper computer, an identity recognition unit and a lower computer; the upper computer is electrically connected with the identity recognition unit, the lower computer is electrically connected with the weighing unit and the electric control lock arranged on the drawer, and the lower computer controls the opening of the drawer and uploads material quantity data to the upper computer.

In the material management cabinet with high sensitivity and centralized weighing and counting, a base plate is arranged between the bearing plate and the weighing sensor body.

Among the above-mentioned high sensitivity concentrates material management cabinet of weighing and counting, a plurality of weighing sensor distribute and set up four corners at the material management cabinet, and weighing sensor is cantilever beam formula strain sensor, pastes the foil gage on the weighing sensor body.

The utility model discloses the beneficial technological effect who has as follows:

1. the utility model discloses changed the measurement mode that traditional material cabinet weighed single material independent configuration weighing unit, provided an intelligent management cabinet who is applicable to the unified measurement of weighing of multiple material of compriseing the multilayer drawer. The bottom of the cabinet body is only provided with a group of (four) weighing sensor measuring units, and the time-sharing weighing measurement of different materials in the plurality of layers of drawers on the cabinet body is completed by matching with a software algorithm, and the quantity of the materials in the drawers is calculated in real time. The weighing and measuring management of various materials can be completed only by configuring one set of weighing and measuring unit for one set of cabinet body, and compared with the traditional weighing type material management system, the weighing and measuring system has the advantages that the hardware composition cost of unit materials is low, and the system cost performance is high.

2. The utility model discloses a weighing and measuring unit need carry out whole weighing to the cabinet body, and this weight not only contains the weight of material, and the dead weight of the cabinet body still, the intensity requirement of structure often makes the cabinet body dead weight account for not less effective range space. In order to meet the requirement of measuring range, a measuring sensor with a large measuring range is required to be matched under the general condition. A larger sensor range means a larger minimum sensed weight, a lower sensitivity, and a poorer measurement accuracy. For guaranteeing measurement accuracy, it is extravagant effectively to reduce the range, the utility model discloses increased one set of independent supplementary supporting mechanism bottom the cabinet body, this mechanism can produce ascending invariable holding power to the cabinet body in the measurement process, and most cabinet bodies dead weight is balanced to the balance, alleviates the load range of sensor, but does not influence measurement accuracy, effectively reduces the sensor range. The auxiliary supporting mechanism has two structural forms, one is a piston rod type auxiliary supporting mechanism, and the other is a lever counterweight auxiliary supporting mechanism.

3. The utility model discloses a piston rod formula auxiliary stay mechanism, simple structure has, simple to operate's characteristics can set for the gas-liquid pressure of piston rod simultaneously, adjusts the holding power then to the self-weight of the adaptation cabinet body. The device can effectively realize constant force support under the quasi-static condition of material storage and taking, and ensure the measurement precision.

4. The utility model discloses a lever counter weight auxiliary stay mechanism constitute by four fixed fulcrums, four lever arms and counter weight mound. The short arm ends of the four levers are upwards supported on the lower surface of the bottom frame of the cabinet body, and the long arm end is connected with the balance weight through the pressing block. A larger lever ratio is selected, and a smaller balance weight is adopted to realize larger constant force support, so that the self weight of the cabinet body is offset. Meanwhile, the same counterweight weight is shared by the levers, the structure is simple to realize, counterweight adjustment can be conveniently carried out according to the measuring range of the cabinet body, and the constant-force supporting requirement of material cabinets of different specifications can be met.

5. The utility model discloses a material cabinet adopts four cantilever beam formula weighing sensor who takes independent stabilizer blade, is in the same place with supplementary supporting mechanism, supports the material cabinet jointly to accomplish the detection function to material weight change. The accuracy of the measured data is high, the structure is simple, and the installation, the debugging and the maintenance are convenient.

Drawings

Fig. 1 is a schematic structural diagram of a first generation stacked material management cabinet of the present invention;

FIG. 2 is a schematic view of the internal structure of a first generation stacked material management cabinet of the present invention;

FIG. 3 is a block diagram of the control measurement module according to the present invention;

FIG. 4 is a schematic view of the composition principle of the lower machine of the present invention;

FIG. 5 is a schematic view of the installation of the weighing sensor of the present invention;

FIG. 6 is a working schematic diagram of the weighing sensor of the present invention;

FIG. 7 is a schematic view of the material management cabinet with an auxiliary supporting unit according to the present invention;

FIG. 8 is a schematic view of a material management cabinet employing a piston rod type auxiliary supporting mechanism according to a first embodiment;

FIG. 9 is a schematic structural diagram of a piston rod unit according to an embodiment;

FIG. 10 is a schematic structural view of a counterweight auxiliary supporting mechanism and a weighing unit according to a second embodiment;

FIG. 11 is a top view of FIG. 10;

fig. 12 is a front view of fig. 10.

Reference numerals: 1-control the measuring module; 2, a drawer; 3, a cabinet body underframe; 4, a ground margin; 5, a cabinet body; 6-a weighing sensor; 7, a bearing plate; 8, a bolt; 9-a backing plate; 10-the active end; 11-fixed end; 12-ground; 15-cable output; 20-an auxiliary support unit; 31-sealing the cylinder; 32-a rod body; 33-upper end portion; 34 — an upper cavity; 35-middle cavity; 36-a through hole; 37-one-way inflation valve; 38-sealing ring; 39-piston rod base; 41-a lever; 42-fulcrum; 43-short arm end; 44-long arm end; 45-weight balance weight; 46-a lever base; 47-briquetting; 48-central screw.

Detailed Description

As shown in fig. 1-3, the first generation multilayer drawer centralized weighing material management cabinet of the present company comprises a cabinet body 5, a cabinet body chassis 3 and a control measurement module 1, wherein the cabinet body 5 is arranged on the cabinet body chassis 3, and a plurality of material storage drawers 2 stacked up and down are arranged in the cabinet body 5; the materials or parts are placed in different drawers according to different categories. A set of weighing units is arranged in the cabinet body chassis 3, and the weight of the whole material management cabinet is measured in real time; the material drawer is locked on the cabinet body 5 through the electric control lock, and the drawer can be automatically opened through the electric control lock only after the identity of a user is confirmed through the identity recognition unit.

The control measurement module 1 comprises an upper computer, an identity recognition unit and a plurality of lower computers; each lower computer is positioned in the material management cabinet. The upper computer can be connected with at most 63 groups of lower computers through an RS485 bus, and one upper computer can manage at most 63 groups of material cabinet units. The upper computer is a human-computer interaction interface and recommends using a tablet computer. The upper computer runs special control software, a software main interface displays the name specifications, the stock quantity and the low stock warning quantity of the materials stored in the grouped multiple groups of cabinets and the multiple layers of drawers, and the opening state of the drawers is displayed through colors.

The upper computer is connected with the identity recognition unit through a COM (communication object model) interface (or a USB interface), reads user identity information and performs verification login. The identity recognition unit comprises one or more combinations of a radio frequency card recognition module, a fingerprint recognition module, a face recognition module and an iris recognition module, and the purpose of adopting various recognition modes is to facilitate users and deal with different use environments and habits.

When the materials are stored and taken, the lower computer detects the action of the button on the cabinet body, releases the electric control lock corresponding to the drawer and completes the opening of the drawer. The lower computer is connected with the weighing unit, completes weight measurement and calculation and display of the quantity of the materials of the specified material drawer, and uploads final data to the upper computer. After the material is stored and taken, the user can directly and manually close the drawer.

In fig. 4, the lower computer mainly comprises an MCU, an RS485 transceiver, a lock control circuit, a weighing circuit, a control panel, and the like. The lower computer MCU receives and transmits instructions and data transmitted by the power supply unit from the upper computer through the RS485 transceiver and the RS485 bus; the lock control circuit is electrically connected with the multi-path electric control lock and is used for opening the drawer and monitoring the state of the drawer; the weighing circuit monitors the weight change of the material cabinet, and the measured data is reported to the MCU in real time. The control panel is used for displaying the serial number and the material dynamic quantity information of the cabinet body of the group.

The upper computer has the functions of material information editing and library building, inventory display, low inventory warning, material access record retrieval, user management, network data sharing and the like. A material database can be established through a material information input interface; collecting and displaying inventory data reported by a lower computer in real time; automatically generating a material access flow bill and updating a material database at the same time; the system is connected with a network server through a network cable or Wifi to share data information, so that remote management is realized.

As an implementation mode, the control and measurement module 1 further comprises a power supply unit, and the power supply unit has the functions that when a user passes verification login, power is supplied to a plurality of groups of lower computer systems, after access operation is completed, the power is cut off to log off the user, and meanwhile the purpose of saving power of the systems in a non-login state is achieved.

As shown in fig. 5 and 6, the weighing unit includes four strain-type weighing sensors 6 arranged in the cabinet bottom frame 3, the four weighing sensors 6 are fastened at four corners of the cabinet bottom frame by two bolts, and the loading ends are respectively provided with a foot 4 supported on the ground 12. And leveling four support legs, and measuring the weight of the cabinet body through strain signals output by the four weighing sensors 6.

The utility model discloses a weighing sensor adopts four-wire system cantilever beam formula strain transducer, two excitation power input lines, two signal output lines that meet an emergency. And the strain signals output by the four sensors are connected in parallel and then enter a subsequent amplifying and AD converting circuit. According to the weight data collected by the AD conversion circuit, the weight difference value before and after the material storing and taking operation can be calculated, and the quantity change value of the materials is calculated by means of the pre-calibrated specific weight of a single material, wherein the material is stored when the value is positive and is taken when the value is negative. The value is displayed on a control panel in real time, and the calculated reserve quantity is reported to an upper computer when the drawer is closed.

As shown in FIG. 7, in order to further improve the measurement accuracy and the resolution to light and small materials, the utility model provides a material management cabinet structure with auxiliary supporting mechanism. In the first generation of multilayer drawer centralized weighing material management cabinet application shown in fig. 1 to 6, materials are accommodated in the drawer 2, the drawer 2 is installed in the cabinet body 5, the cabinet body 5 is located on the cabinet body chassis 3 (the drawer 2 and the cabinet body chassis 3 of the cabinet body 5 are collectively referred to as a frame), because of the strength, the self weight of the frame accommodating the materials is larger than the weight of the accommodated materials in some cases, and the effective measurement range of the weighing sensor 6 is wasted to a large extent. In order to guarantee the material measuring range, a large-range weighing sensor is generally required to be selected, so that the weight of the whole material cabinet is contained in the measuring range, and meanwhile, the sensor is required to have the measuring precision and the resolution ratio meeting certain requirements so as to sense the change of the material with small weight. The sensor has both large range and high resolution, which is a difficult contradiction to solve.

Assuming that the weight of the material is 50kg and the self weight of the frame is 50kg, a sensor of C3 grade with the full scale of 100kg needs to be selected, the accuracy of the sensor is 0.033% of the full scale, the uncertainty of the weighed amount is 33g, that is, the weight of the part which can be distinguished by the material cabinet using the sensor of C3 grade is 33g, and the part with the weight less than 33g can not be accurately distinguished and counted.

If an auxiliary supporting mechanism is arranged below the cabinet body, most of the dead weight of the cabinet body is balanced by 40kg of upward constant supporting force. The maximum weight loaded on the sensor is 60kg, so that the C3 sensor with the measuring range of 60kg can be used, the uncertainty of the weighed quantity is 20g, namely, the weight of the part which can be distinguished by the material cabinet adopting the C3 sensor is 20g, and the distinguishing precision is improved.

To meet the above requirements for offsetting or reducing the weight of the frame, the auxiliary support unit 20 is required to realize constant-force support, that is, when the weight of the material in the material cabinet changes, the support force for the material cabinet remains unchanged. In order to ensure the stability of the system, the supporting force is generally required to be less than the weight of the empty material cabinet, and the difference is kept to be about 10 kg.

Fig. 8 and 9 are schematic views of a supporting structure of a material cabinet using a piston rod type auxiliary supporting mechanism in the first embodiment. In fig. 8, four weighing sensors 6 are arranged below the cabinet underframe 3, and each weighing sensor 6 is supported on the ground through a ground foot 4. The middle positions of two sides of the cabinet body chassis 3 are respectively provided with a piston rod type auxiliary supporting mechanism, so that constant force supporting on the cabinet body is realized.

The piston rod unit includes a sealing cylinder 31, a rod body 32 slidable up and down in the sealing cylinder 31, and a packing 38. The upper end part 33 of the rod body 32 is of a step-shaped structure, and the upper end is thick and the middle is thin; the upper end 33 of the rod body 32 and the head of the sealed cylinder 31 constitute an upper cavity 34; the middle part outer ring of the rod body 32 and the cylinder body of the sealing cylinder body 31 form a middle cavity 35; the upper end part 33 of the rod body 32 is provided with a plurality of through holes 36 which are communicated with the upper cavity 34 and the middle cavity 35; the upper cavity 34 and the middle cavity 35 are filled with gas or gas-liquid mixed pressure medium, and the pressure medium can flow in the two cavities when the rod body 32 moves.

The upper end of the sealing cylinder body 31 is provided with a one-way inflation valve 37, and the one-way inflation valve 37 is immediately sealed after the upper cavity 34 is inflated with gas or gas-liquid mixture with set pressure; a sealing ring 38 is arranged between the sealing cylinder 31 and the rod body 32 to realize movable sealing of the pressure medium in the sealing cylinder 31. After being pressurized, the rod body 32 is pushed out and stays at a certain position of the sealing cylinder body 31, and the outward pushing force is constant. In use, the upper part of the sealing cylinder 31 is supported on the upper edge of the cabinet chassis 3, and the lower end of the rod body 32 is supported on the ground.

To explain the constant force supporting principle of the piston rod, the following explanation is made:

assuming that after the gas and liquid are flushed into the sealed cylinder 31, the rod body 32 extends out of the cylinder, the gas and liquid volume inside the cylinder is C, the pressure is P, the cross-sectional area of the middle part of the rod body is a, and the outward thrust of the rod body is F ═ AP;

if the rod body is pushed into the sealed cylinder body by a distance s, the outward pushing force of the rod body becomes

By deriving the above formula, it can be obtained that the thrust change rate is

If P is 1MPa, s is 50mm, the rod diameter is 10mm, the length of the sealing cylinder body is 200mm, and the inner diameter is 18mm, namely

A＝78.54mm²，C＝5.089x10⁴mm³

The thrust change rate can be calculated as

The material weighing process is a quasi-static process, and the piston rod basically does not stretch or retract. For normal material storing and taking operation, the deformation of the strain sensor plus the deformation of the cabinet body is generally not more than 0.1 mm. From this it can be estimated that the thrust variation will not exceed 0.0142N, about 1.4 g. Such small thrust variations can be considered to be constant support forces, which are not sufficient to affect the measurement.

Fig. 10 to 12 show the working principle of the second embodiment in which the auxiliary supporting unit 20 is a lever counterweight unit, and the second embodiment is composed of four fixed supporting points, four lever arms and a counterweight weight. The short arm ends of the four levers are upwards supported on the lower surface of the bottom frame of the cabinet body, and the long arm ends are fixedly connected with the balance weight. The gravity of the counterweight weight is converted into upward constant supporting force of the short arm ends of the four levers, and most of the dead weight of the cabinet body is offset. Because the weight of the balance weight is unchanged when the materials are taken and put, the supporting force from the lever action to the bottom frame of the cabinet body is constant.

In fig. 10, the lever 41 includes a fulcrum 42, a short arm end 43, and a long arm end 44, the fulcrum 42 of the lever 41 being provided on a height-adjustable lever base 46; the short arm end 43 is propped against the lower part of the bearing plate 7 of the cabinet body underframe 3 to apply upward force to the cabinet body underframe 3; the long arm end 44 of the lever 41 is fixedly connected with the counterweight weight 45.

As shown in fig. 11, as a further embodiment, the force application point of the short arm end 43 is arranged on the bearing plate 7 on the periphery of the cabinet underframe 3, and the long arm end 44 of the lever 41 is fixedly connected with the weight 45 through two pressing blocks 47. The lever 41 has a rectangular cross-section to improve bending moment. The counter weight 45 is arranged in the middle of the cabinet body chassis 3, a central screw 48 is arranged in the center of the counter weight 45, the counter weight 45 is fixed on the central screw 48, the two press blocks 47 are of a hollow structure and are connected to the central screw 48 in a penetrating mode, corresponding grooves are formed in the bottom of the upper press block and the top of the lower press block, the long arm ends 44 of the four levers 41 are pressed in the grooves from four angles respectively, and the fixed connection with the counter weight 45 is achieved.

The counterweight weight 45 can be conveniently replaced according to the requirements of different counterweight weights, and the torque ratio of the lever 41 is 10-20:1, so that a counterweight with large mass can be realized by a counterweight weight with small weight, most or all of the frame weight can be offset, and the constant-force support in the whole process can be realized during material sampling; meanwhile, the fulcrum 42 of each lever 41 is fixed on the lever base 46 with adjustable corresponding height, so that the height of the material cabinet foot 4 can be conveniently adapted.

As a further embodiment, four lever bases 46 may be disposed on the same base plate with rims, thereby providing stable support and facilitating installation and debugging.

The following details the main functions and operation steps of the material management cabinet:

firstly, identifying personnel identity and managing electronic bills.

And starting the upper computer of the device to enter a system operation interface. The identity of an operator is firstly identified through the identity identification unit, and the operation authority of the operator for storing and taking the materials is confirmed. And the electronic bill of the user is formed and filed for the material access operation which is carried out later.

Second, establishing bill of materials

And on a system operation interface, distributing the corresponding material drawer type according to the size of the material to be put in storage, and inputting information such as material name, specification, unit, replenishment prompt quantity, remark and the like.

Third, material calibration

Clicking a calibration button corresponding to the material specification on the system operation interface, enabling the corresponding material drawer to enter a calibration mode, and acquiring and memorizing the tare weight of the drawer; inputting the quantity of the materials to be put in storage on an operation interface and confirming, and automatically opening the drawer; and (5) putting the amount of the materials into the drawer, and then closing the drawer to finish the calibration.

Fourthly, the materials are put in and out of the warehouse

Pressing a green button on the cabinet body, automatically ejecting the corresponding material drawer, and immediately displaying the quantity of the existing materials by the nixie tube; the materials are directly stored and taken, the number of the materials on the nixie tube is reduced by one when one material is taken, and the number of the materials on the nixie tube is increased by one when one material is stored; the material drawer is manually closed, and the storing and taking operation is completed.

Fifthly, inventory inquiry and remote data management

The user can conveniently inquire the existing quantity of the materials in the cabinet body from the list of the system interface, and meanwhile, the materials list is shared in the local area network, so that remote data collection and analysis are facilitated.

Six, low stock warning

When the quantity of the materials in the drawer is less than the preset warning quantity, the system interface sends replenishment prompt information to the materials of the specification.

The utility model discloses material management cabinet based on count of weighing in a plurality of high sensitivities concentratedly has constituteed intelligent material management system or intelligent material management warehouse, accomplishes functions such as the self-service access of a plurality of kinds of different materials on the large-scale production line, low stock warning, stock statistics and automatic flowing water book keeping operation to realized the unmanned on duty in warehouse, realized that server terminal unifies and gathers and data management, made things convenient for modernization, the fine-grained management to material and part.

Claims (10)

1. The utility model provides a high sensitivity concentrates material management cabinet of weighing count which characterized in that: the weighing system comprises a cabinet body (5), an auxiliary supporting unit (20) and a control measuring module (1), wherein a plurality of stacked material storage drawers (2) are arranged in the cabinet body (5), and a weighing unit is arranged below the cabinet body (5) and is used for measuring the weight of the whole material management cabinet in real time; the auxiliary supporting unit (20) applies upward constant supporting force to the cabinet body (5), and the amplitude of the supporting force is smaller than the weight of a cabinet body frame when the material is empty; the control measuring module (1) controls the opening of the drawer, and the quantity of the materials in the material management cabinet is calculated and displayed according to the parameters of the weighing sensor.

2. The high-sensitivity centralized weighing and counting material management cabinet according to claim 1, wherein: the utility model discloses a material management cabinet, including cabinet body chassis (3), cabinet body (5) set up on cabinet body chassis (3), weighing unit including setting up a plurality of weighing sensor (6) on cabinet body chassis (3), lower margin (4) are installed in stiff end (11) of weighing sensor (6), expansion end (10) are passed through bolt (8) and are linked on bearing plate (7) of cabinet body chassis (3), the weight of material management cabinet is acted on weighing sensor (6) through bearing plate (7) to the weight of material management cabinet is obtained in the measurement.

3. The high-sensitivity centralized weighing and counting material management cabinet according to claim 1 or 2, characterized in that: the auxiliary supporting units (20) are a plurality of piston rod units arranged below the cabinet body underframe (3); the piston rod unit comprises a sealing cylinder body (31) and a rod body (32) which slides up and down in the sealing cylinder body (31), an upper cavity (34) and a middle cavity (35) are respectively formed between the upper end part (33) and the middle part of the rod body (32) and the cylinder body of the sealing cylinder body (31), the upper cavity (34) and the middle cavity (35) are communicated through a plurality of through holes (36), and a one-way inflation valve (37) is arranged at the upper end of the sealing cylinder body (31) and used for inflating pressure media into the upper cavity (34).

4. The high-sensitivity centralized weighing and counting material management cabinet according to claim 3, wherein: a sealing ring (38) is arranged between the sealing cylinder body (31) and the rod body (32).

5. The high-sensitivity centralized weighing and counting material management cabinet according to claim 1 or 2, characterized in that: the auxiliary supporting unit (20) is a lever counterweight unit, a fulcrum (42) of a lever (41) is arranged on a lever base (46), a short arm end (43) applies upward force to the cabinet body (5), and a long arm end (44) of the lever (41) is fixedly connected with a counterweight (45).

6. The high-sensitivity centralized weighing and counting material management cabinet according to claim 5, wherein: a plurality of lever counterweight units are arranged below the material management cabinet, a fulcrum (42) of each lever (41) is fixed on a lever base (46) with adjustable corresponding height, a force application point of a short arm end (43) is arranged on a bearing plate (7) on the periphery of a cabinet body chassis (3), and a long arm end (44) of each lever (41) is fixedly connected with the same counterweight (45) through a pressing block (47).

7. The high-sensitivity centralized weighing and counting material management cabinet according to claim 6, wherein: the lever (41) has a torque ratio of 10-20: 1.

8. The high-sensitivity centralized weighing and counting material management cabinet according to claim 1, wherein: the control measurement module (1) comprises an upper computer, an identity recognition unit and a lower computer; the upper computer is electrically connected with the identity recognition unit, the lower computer is electrically connected with the weighing unit and the electric control lock arranged on the drawer, and the lower computer controls the opening of the drawer and uploads material quantity data to the upper computer.

9. The high-sensitivity centralized weighing and counting material management cabinet according to claim 2, wherein: a backing plate (9) is arranged between the bearing plate (7) and the weighing sensor body.

10. The high-sensitivity centralized weighing and counting material management cabinet according to claim 1, wherein: a plurality of weighing sensor (6) distribute and set up four corners at the material management cabinet, and weighing sensor (6) are cantilever beam formula strain gauge, pastes the foil gage on weighing sensor (6) body.