Electronics batch scale opposite opened feeding gate
(1), affiliated field
What the present invention relates to is a kind of meausring apparatus.A kind of feeder of electronic weighting equipment specifically.
(2), background technology
Present specified feeder adopts two cylinders or servomotor control single delivery gate, realizes specified feed by the value of feedback and the control feed time of LOAD CELLS real-time sampling, thereby reaches the purpose of accurate feeding.Air-cylinder type single delivery gate charging gear structure is complicated, needs distribution to move pipeline, and has only thick, smart two-stage feed, and the feed precision is restricted; Servo electric machine type single delivery gate charging gear has overcome the accuracy limitations of air-cylinder type bin gate, but because single delivery gate is unidirectionally to open the door and close, and the switching time of bin gate is long, and the employing principle of weighing in real time, and the impact to bin gate during blanking is restricted the speed of weighing.So, at present package speed 1000 bags/hour more than automatic packaging line in all adopts two scales to weigh, the scheme of a packaging machine of supply.Along with science and technology development, more and more higher to the requirement of packaging machine package speed, the function of packaging machine is also being updated, the package speed of bag forming automatic packaging machine can reach 1600 the bag/hour.Two scales are weighed and also can not be satisfied the demand gradually.
(3), summary of the invention
The object of the present invention is to provide a kind of flexible operation, degree of accuracy height, can satisfy the electronics batch scale opposite opened feeding gate of high speed pouch moulding automatic packaging machine demand.
The object of the present invention is achieved like this: it comprise rack-mounted drive unit, bin gate mechanism and be connected in drive unit and bin gate mechanism between gear train, described bin gate mechanism is made up of two bin gates up and down, two bin gates connect with the blanking barrel of batch scale by the bin gate axle, described gear train comprises that an end links to each other with drive unit, the other end is by the driving shaft of Bearing Installation on frame, centering block is installed on the driving shaft, distinguish hinged draw-in bar and outside link up and down on the bin gate, the other end and the centering block of interior outside link are hinged.
The present invention can also comprise some architectural features like this:
1, the centering block that is installed on the driving shaft is 2, and the two ends of bin gate are provided with the interior outside link hinged with centering block respectively up and down.
2, the centering block that is installed on the driving shaft is 2, and an end of last bin gate is provided with a draw-in bar hinged with centering block, and an end of following bin gate is provided with an outside link hinged with centering block.
3, the centering block that is installed on the driving shaft is 1, with the hinged draw-in bar of last bin gate and hinged with the two ends of the other end of the hinged outside link of following bin gate and centering block.
4, the bin gate plate of bin gate is an arc up and down, has breach on the blanking limit of bin gate up and down.
5, described breach can be trapezoidal, arc, any in square.
6, described drive unit is a servomotor.
The applicant is at the deficiency of current electronics batch scale, developed a kind of electronics batch scale, weighing principle has been done improvement: the initial time section of feed is not weighed, only quick feed, avoid impacting influence to the speed of weighing, arrive and want to weigh again behind the seeking time, the step control precision, this just requires the speed of feeder, the needs that precision will satisfy quick feed.This just high speed of device of the present invention, multistage feeder.Bin gate is freely rotated under the driving of servomotor, and forward and reverse rotational angle is 60 degree.This device adopts driven by servomotor, according to material characteristic and actual requirement, by the adjustment of control system, makes bin gate open and close angle, speed control accurate, adjustable flexibly.Adopt the toggle transmission, drive the form that the bilateral bin gate is split, make the switching time ratio single delivery gate of bin gate shorten 1/2.The bin gate plate radian of inside and outside bin gate is appropriate, and blanking port is reasonable in design, guarantees that the smooth and easy of material flows.Device of the present invention can cooperate the high-speed weighing electronic batch scale, realizes high speed, multistage feeding.
(4), description of drawings
Fig. 1-the 3rd, the structural representation of three kinds of embodiments of the present invention;
Fig. 4 is the structural representation of bin gate;
Synoptic diagram when Fig. 5 is the bin gate closure;
Fig. 6 is the synoptic diagram of bin gate when opening to maximum.
(5), specific embodiments
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
Embodiment one.The composition of electronics batch scale opposite opened feeding gate comprise rack-mounted drive unit, bin gate mechanism and be connected in drive unit and bin gate mechanism between gear train.In conjunction with Fig. 1, bin gate mechanism is made up of last bin gate 6, following 7 two bin gates of bin gate, and two bin gates connect with the blanking barrel 9 of batch scale by bin gate axle 8.Gear train comprises that an end links to each other with drive unit, the other end is by Bearing Installation driving shaft 2 on frame, centering block 3 is installed at the two ends of driving shaft respectively, it between centering block and the driving shaft key connecting, the two ends of each centering block connect outside link 4 and draw-in bar 5 by oscillating bearing, and the other end of interior outside link connects by the oscillating bearing and the loading and unloading couplet on the door respectively.Drive unit is a servomotor 1.Simultaneously in conjunction with 4, the bin gate plate of inside and outside bin gate is an arc, has breach on the blanking limit of bin gate up and down, the shape of this breach can be trapezoidal, arc or square in any.Servomotor is done accordingly actions such as just changeing, reverse, stop under the control of electric-control system, drive drive shaft turns, drives toggle, makes inside and outside pull bar pulling both sides bin gate standard-sized sheet, turns down, closes.
Embodiment two.In conjunction with Fig. 2, second kind of embodiment of the present invention is: the centering block that is installed on the driving shaft is 2, and an end of last bin gate is provided with a draw-in bar hinged with centering block, and an end of following bin gate is provided with an outside link hinged with centering block.Other parts are identical with embodiment one.
Embodiment three.The centering block that is installed on the driving shaft is 1, with the hinged draw-in bar of last bin gate and hinged with the two ends of the other end of the hinged outside link of following bin gate and same centering block.