Summary of the invention
The automatic lifting pallet fork is to the method for correct access goods height when the purpose of this invention is to provide a kind of access goods, the corresponding current height of pallet fork in the time of can when first stacking, automatically being recorded in the operation of this goods yard, thereby next time is when the stacking of same goods yard, as long as input goods item and access goods state, can automatically pallet fork be promoted to corresponding access goods height to carry out the operation of access goods, thereby make the operator when the stacking goods, range estimation pallet fork height needn't frequently come back, alleviate operator's work fatigue, also be beneficial to and improve stacking efficient.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: the automatic lifting pallet fork is to the method for correct access goods height during a kind of access goods, and it may further comprise the steps:
(1) set up the step of data cell at controller, this step comprises step by step following:
The goods yard is numbered and is stored in the step of controller;
When the stock of current goods yard, when detecting the load disappearance, the strain sensor that is used for the reflection load change sends the step of the instruction of reading the current height of pallet fork to controller; Or when the picking of current goods yard, when detecting load and obtain, the strain sensor that is used for the reflection load change sends the step of the instruction of reading the current height of pallet fork to controller;
Controller receives the height reading command from strain sensor, and reads the step of the current height H x of pallet fork to the altitude sensing unit of real-time measurement pallet fork height, and x represents the goods item;
Controller calculates when this goods yard carried out the operation of access goods for Hx, and the step of the height value that pallet fork should promote draws when this goods yard carried out inventory operations, and pallet fork should be promoted to Hx+B, and when the picking operation was carried out in this goods yard, pallet fork should be promoted to Hx-A;
Controller contacts access status and the foundation of this goods yard access goods height value of current goods item, this article No. position, and generate one and can reflect that the data cell of goods item, goods yard access status and pallet fork access goods height value is stored in the step of controller, data cell is [x; Access status; Hx-A; Hx+B], when having goods on the goods yard, be defined as the picking state, be made as 1; When the goods yard is idle, be defined as inventory status, be made as 0;
(2) access goods step comprises step by step following successively:
Step to controller input goods item and store status;
Controller reads the data cell of corresponding goods item, and whether the access status that detects the goods item operates consistent step with the current access goods that carries out;
Controller sends the step of pallet fork access goods height value data to jacking system;
Jacking system rises to respective heights to carry out the step of access goods operation with pallet fork.
Preferred as technique scheme, described A and B are pre-set definite value.
Preferred as technique scheme, described A is pre-set definite value, the variable of B for increasing with load.
Preferred as technique scheme, described A is 5-25mm.
The automatic lifting pallet fork was to the device of correct access goods height when another object of the present invention also was to provide a kind of access goods, and it comprises
Can reflect in real time the pallet fork load change and can disappear or obtain the strain sensor that produces constantly the current height reading command of pallet fork detecting load,
Can detect in real time the height sensor of pallet fork height,
Thereby the current height reading command of pallet fork that can receive described strain sensor transmission reads the current height value of pallet fork to described height sensor, and can be in conjunction with the access goods state in current goods item, current goods yard, generation can reflect the data cell of goods item, goods yard access status and pallet fork access goods height value and the controller of being stored
Thereby the pallet fork access goods height value data that can receive described controller transmission rise to respective heights to carry out the jacking system of access goods operation with pallet fork.
Preferred as technique scheme, described strain sensor are installed on the car pin or on the door frame.
In sum, the present invention has following beneficial effect: the height value of pallet fork is the terrain clearance value of pallet fork upper surface; During first stacking, goods item and access goods state and storage to controller input current operation goods yard, the operator is by range estimation, make jacking system that pallet fork is risen to stacking height, and when pallet fork unloads goods, strain sensor is in the moment that detects the load disappearance, send the instruction of reading the current height of pallet fork to controller, thereby make controller read the current height value Hx of pallet fork and calculate to altitude sensing unit and lower inferior this pallet fork is carried out access goods when operation, the height value that pallet fork should promote, if pallet fork stock height value is Hx+B, pallet fork picking height value is Hx-A, thereby with current goods item, the access status of this article No. position and this goods yard access goods height value are set up and are contacted, and generate one and can reflect the goods item, the data cell of goods yard access status and pallet fork access goods height value is stored in controller; For ease of storage, the access status in goods yard; For defining, when the goods yard is idle, be decided to be inventory status, be made as 0; When having goods on the goods yard, be decided to be the picking state, be made as 1; Controller has the TIP of being convenient to input the goods item and need carrying out access goods state; Thereby when same goods yard being carried out again the operation of access goods, only need to controller input goods item and access goods state, controller can compare with the access goods state that is stored in this goods yard of controller the access status of input, if consistent, then send pallet fork access goods height value to jacking system, thereby when access goods operates, operating personal needn't frequently come back and estimate the pallet fork height, alleviate operator's work fatigue, also be beneficial to and improve stacking efficient, be conducive to simultaneously improve safety.
On controller, thereby also can input coding of parts and components and determine the goods item by warehousing management software, also can directly assign instruction by the storage main console desk to piler by wireless network forms, also can the RFID technology be installed at carrier-and-stacker and read pallet information and determine and verify access goods information.
The all right Effective Raise carrier-and-stacker safety performance of the present invention, when the operator freight lifting is liftoff, the goods yard that the input preparation is deposited, control instrument is after obtaining the load information of strain-gauge, by with the contrast of the carrier-and-stacker load curve of prior setting, if comparison the result dangerous then can remind at once and stop.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
This specific embodiment only is explanation of the invention; it is not limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification sheets, but as long as all are subject to the protection of patent law in claim scope of the present invention.
Embodiment: the automatic lifting pallet fork comprises to the device of correct access goods height during a kind of access goods
Can reflect in real time the pallet fork load change and can disappear or obtain the strain sensor that produces constantly the current height reading command of pallet fork detecting load,
Can detect in real time the altitude sensing unit of pallet fork height,
Thereby the current height reading command of pallet fork that can receive described strain sensor transmission reads the current height value of pallet fork to described height sensor, and can be in conjunction with the access goods state in current goods item, current goods yard, generation can reflect the data cell of goods item, goods yard access status and pallet fork access goods height value and the controller of being stored
Thereby the pallet fork access goods height value data that can receive described controller transmission rise to respective heights to carry out the jacking system of access goods operation with pallet fork.
Data circulation scheme drawing between each device of present embodiment is referring to Fig. 1.
Strain sensor can be installed on the car pin of carrier-and-stacker or on the door frame.
The automatic lifting pallet fork may further comprise the steps to the application process of the device of correct access goods height during above-mentioned access goods:
(1) set up the step of data cell at controller, this step comprises step by step following, can be referring to Fig. 2:
The goods yard is numbered and is stored in the step of controller;
When the stock of current goods yard, when detecting the load disappearance, the strain sensor that is used for the reflection load change sends the step of the instruction of reading the current height of pallet fork to controller; Or when the picking of current goods yard, when detecting load and obtain, the strain sensor that is used for the reflection load change sends the step of the instruction of reading the current height of pallet fork to controller;
Controller receives the height reading command from strain sensor, and reads the step of the current height H x of pallet fork to the altitude sensing unit of real-time measurement pallet fork height, and x represents the goods item;
Controller calculates when this goods yard carried out the operation of access goods for Hx, and the step of the height value that pallet fork should promote draws when this goods yard carried out inventory operations, and pallet fork should be promoted to Hx+B, and when the picking operation was carried out in this goods yard, pallet fork should be promoted to Hx-A;
Controller contacts access status and the foundation of this goods yard access goods height value of current goods item, this article No. position, and generate one and can reflect that the data cell of goods item, goods yard access status and pallet fork access goods height value is stored in the step of controller, data cell is [x; Access status; Hx-A; Hx+B], when having goods on the goods yard, be defined as the picking state, be made as 1; When the goods yard is idle, be defined as inventory status, be made as 0;
(2) access goods step comprises step by step following successively:
Step to controller input goods item and store status;
Controller reads the data cell of corresponding goods item, and whether the access status that detects the goods item operates consistent step with the current access goods that carries out;
Controller sends the step of pallet fork access goods height value data to jacking system;
Jacking system rises to respective heights to carry out the step of access goods operation with pallet fork.
Wherein, A and B can be pre-set definite value, and particularly A is preferably 5-25mm; B also can be a variable, increases with load.