CN201148212Y - Scattered material blanking flow control mechanism - Google Patents

Abstract

The utility model relates to a discharging flow controlling mechanism for bulk materials. The controlling mechanism comprises a driving part (1), a transverse link rod (2), an oscillating rod (4) and a soft slide belt (5); wherein, the driving part (1) is provided with a longitudinal driving rod; one end of the transverse link rod (2) is connected with the driving rod of the driving part (1), and the other end is connected with a rotary shaft (3); one end of the oscillating rod (4) is nested on the rotary shaft (3), and the oscillating rod (4) can rotate along the rotary shaft (3); the soft slide belt (5) spans over and is sleeved at the free end of the oscillating rod (4); the driving part (1), the link rod (2) and the rotary shaft (3) are arranged on the outer side of a discharging cover (6); the oscillating rod (4) and the soft slide belt (5) are arranged in the cavity of the discharging cover (6); the driving part (1) is connected with a control system. The discharging flow controlling mechanism first discharges materials on a reciprocating conveyer with a material-storing function, so that the discharging point of materials can be constantly changed, thus ensuring that wave crests and wave troughs on the surface of materials are small. The discharging flow controlling mechanism has the advantages of simple structure, convenient fabrication and mounting, little occupied space, uniform material distribution and high quantitative loading precision.

Description

Bulk material blanking flow control mechanism

Technical field

The utility model relates to mechanism's technical field of control blanking flow when packing into bulk cargo in the casing, the mechanism of control blanking flow in the time of in the casing of especially bulk cargos such as tobacco leaf, stem, pipe tobacco, offal being packed into.

Background technology

Mostly existing bulk material boxing apparatus is to adopt material distributing machine that direct conveying of material fallen into the hopper that is arranged in the material distributing machine below, the charge amount of each hopper is controlled by the start-stop of control material distributing machine, after a hopper is filled, material distributing machine stops action, after treating that next empty charging box is sent into, material distributing machine is restarted and is feeded.Even if this charging apparatus is after material distributing machine stops action, the partial material that is arranged in the material distributing machine front end also still can be shaken off to hopper, is difficult to accurately control charge amount, can not satisfy the requirement of the processing that becomes more meticulous.Application number is that 200720104686.4 Chinese patent application has been addressed a kind of bulk material dosing boxing apparatus, be the material control device that is provided with a sliding gate structure between glassware and the hopper going into, can stretch Control Allocation whereabouts material to enter the flow of hopper by the slippage of sliding gate.Structurally, because gate generally adopts the tile type structure of rolling screen door, hang the silk phenomenon in order to make material be easy to glide and not produce, the tile of making gate must be smooth smooth, can not there be bigger slit two adjacent tile joints, and are higher to selection, making processing and matching requirements.And the slippage of gate moves along two ends guiding draw-in groove, requires the gap between guiding draw-in groove and the tile track adjusting wheel little, to guarantee that motion is steady, noise is less, also must adopt the better seal device, prevents that material and dust from entering in the slideway.In addition, the positive and negative rapid reaction that the flexible power motor of the slippage of gate requires can stand repeatedly starts and stops, and the gap of positive and negative rotation is little in transmission, thereby motor properties is had relatively high expectations.The space that installation occupies is also bigger.On cloth and vanning precision, blanking flows directly in the case by sliding gate, and material all is to fall in the case with same angle and same point, makes material after the cartonning be the mountain shape and piles up, and its charge level top Wave crest and wave trough is bigger, and cloth is inhomogeneous.In addition, when material is shunted, part material drops on the storing machine, when another part material continues to drop in the hopper, because the streams that continues to drop in the hopper must be broken through the whereabouts waterfall barrier of that part of streams that drops on the storing machine by self kinetic energy, make material fall the case flow than difficult control, the vanning precision reduces.

Summary of the invention

The purpose of this utility model be to provide a kind of simple in structure, be convenient to make to install, the position that takes up space is little, and cloth evenly, bulk material blanking flow control mechanism with high basis weight vanning precision.

The purpose of this utility model is achieved by the following technical solution.

Bulk material blanking flow control mechanism, this control mechanism comprises that drive element with vertical drive spindle, an end connect that transverse link, an end that the drive element drive spindle other end connects rotating shaft are sleeved in the rotating shaft and the fork that can rotate along rotating shaft, stride and be enclosed within the free-ended flexible sliding band of fork, drive element, connecting rod and rotating shaft are arranged at the blanking material cover lateral surface, fork and flexible sliding band are arranged at the blanking material cover inner chamber, and drive element is connected with control system.

Flexible sliding band of the present utility model is two parts space with the blanking material cover internal separation.The command signal that electronic weighting equipment sent on the vanning platform can be flexible by the drive spindle of control system controlling and driving parts, motion by connecting rod and fork makes flexible sliding band swing, thereby in blanking material cover, mark off two tapping channels, be positioned at the reciprocating type moving conveyor of blanking material cover below for hopper uniform distribution and storing but one lead to, another passage directly leads to hopper.Drive the blanking channel openings of sizes that flexible sliding band slip scalable is led to reciprocating type moving conveyor and hopper, the bulk cargo amount that enters reciprocating type moving conveyor and hopper with control by fork.Material can slip into two edge channels respectively along the sliding band of flexibility.Beginning is when filling with substance in hopper, the flexible sliding band of fork swing drive slides into the top and contacts with the blanking material cover sidewall, the passage that leads to hopper is closed, and all materials are all fallen on the reciprocating type moving conveyor, reciprocating type moving conveyor in proal process in hopper uniform distribution.When the hopper loaded weight be less than the preset value of hopper capacity, when entering the low discharge vanning stage of rear, the electronic weighting equipment of hopper bottom sends instruction, by the backswing of control system control fork, drive flexible sliding band reverse slide, open the passage that directly leads to hopper, directly enter the mass flow of hopper by the openings of sizes control of control channel.Meanwhile, reciprocating type moving conveyor counter motion enters the storing state, finishes until the vanning of rear low discharge, control system is controlled fork swing again and is driven flexible sliding band and slide into free end and contact with the blanking material cover sidewall, and whole materials are fallen again on the reciprocating type moving conveyor.The hopper of filling is sent, and next hopper enters, and continues above-mentioned charging process.

The utility model drops on the reciprocating type moving conveyor of storing effect blanking earlier, and by reciprocating type moving conveyor moving cloth, the discharging point of material constantly changes, and makes the material charge level top Wave crest and wave trough after the cartonning less, and cloth is even.And owing to can control the blanking channel openings of sizes of leading to hopper when the rear low discharge is cased flexibly, can effectively control the mass flow that enters hopper, improve material vanning precision.When mass flow at 9000 kilograms/hour, when the vanning amount of every case was 100～200 kilograms, the oxed weight error of every case can be controlled in ± 0.25 kilogram in.The utility model is simple and compact for structure, and it is little to take up room, and is easy to make and install, and its connecting rod mechanism, swing-bar mechanism, the sliding band of flexibility mechanism make simple and convenient, and selection also is easier to, and need not it is carried out the sealing of excessive demand, low cost of manufacture.

Further set forth content of the present utility model below in conjunction with Figure of description.

Description of drawings

Fig. 1 is the structural representation of the utility model partial cutaway;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is that the utility model is installed in the scheme drawing in the quantitative boxing apparatus.

The specific embodiment

As shown in Figure 1 and Figure 2, the utility model comprises that drive element 1 with vertical drive spindle, an end connect that transverse link 2, an end that the drive element drive spindle other end connects rotating shaft 3 are sleeved in the rotating shaft 3 and the fork 4 that can rotate along rotating shaft, stride and be enclosed within that fork is free-ended flexiblely slidingly is with 5, drive element 1, connecting rod 2 and rotating shaft 3 are arranged at blanking material cover 6 lateral surfaces, fork 4 and flexible the cunning are with 5 to be arranged at the blanking material cover inner chamber, and drive element 1 is connected with control system.Drive element 1 can adopt pneumatic element, can directly produce house from professional production and choose.

As shown in Figure 3, the utility model is installed in the quantitative boxing apparatus.Quantitatively boxing apparatus comprises the cloth material conveyer 15 that is positioned at the top, be positioned at the blanking material cover 6 of cloth material conveyer below and be positioned at the reciprocating type moving conveyor 11 of blanking material cover below, moving back and forth below the conveyer front end and placing hopper 10 on the material receiving conveyor 7 below the blanking material cover, between the discharge end of reciprocating type moving conveyor 11 and hopper 10 inlet points, be connected to material-falling hopper 14.Be socketed with the lifting vanning platform 8 of charged sub-meausring apparatus 12 in material receiving conveyor 7, electronic weighting equipment 12 all is connected with control system with driver train 1.In material receiving conveyor 7 front and back empty van buffer memory conveyer 13 and outfeed belt conveyor 9 can be set respectively.

Working process is as follows: at first by empty van buffer memory conveyer 13 empty charging box is transported to the vanning website, the lifting of control system control afterwards vanning platform 8 rises goes into material-falling hopper 14 outlets to the hopper muzzle of hopper 10, is loaded with the cloth material conveyer 15 beginning convey materials of bulk material.The beginning when filling with substance, fork 4 rotates to drive flexiblely slidingly is with 5 to slide into the blanking material cover sidewall and contact, the passage A that leads to hopper is closed, and all materials are all fallen on the reciprocating type moving conveyor 11 by channel B, reciprocating type moving conveyor in proal process in hopper uniform distribution.Simultaneously, the LOAD CELLS that is in lifting vanning platform under the hopper is carried out real-time Weighing.When the hopper loaded weight be less than the preset value of hopper capacity, when entering the low discharge vanning stage of rear, the electronic weighting equipment 12 of hopper bottom sends instruction, by control system control fork 4 backward rotation, drive flexible sliding 5 reverse slide of being with, open the passage A that directly leads to hopper, material just by the flexibility cunning with on the gentle band of domatic separately shunting slide to two passages, part material is fallen on the reciprocating type moving conveyor 11, this moment, reciprocating type moving conveyor 11 inverted runnings entered the storing state.The material of another part low discharge directly drops in the hopper, the mass flow of falling in the hopper is controlled by the openings of sizes of control channel A, finish until the vanning of rear low discharge, control system is controlled fork again and is rotated, the flexible sliding band of drive slides into free end and contacts with the blanking material cover sidewall, and all materials are fallen again on the reciprocating type moving conveyor.After charging is finished, break away from material-falling hopper 14 outlets, drop to simultaneously on the material receiving conveyor 7 by 8 declines of lifting vanning platform, send by outfeed belt conveyor 9, next hopper enters from empty van buffer memory conveyer 13, and reciprocating type moving conveyor is ahead running again, continues the charging of next hopper.The precision of vanning is finished by the signal control actuating device that electronic weighing device 12 transmits by control system.

The utility model is particularly useful for the high precision that is used for multiple products such as tobacco leaf, stem, pipe tobacco, offal in the tobacco business fiber tow production system and quantitatively cases.Also can be used for the material dosing vanning of industries such as food, chemical industry, medicine.

Claims (1)

1, bulk material blanking flow control mechanism, it is characterized in that, this control mechanism comprises that drive element (1) with vertical drive spindle, an end connect that transverse link (2), an end that the drive element drive spindle other end connects rotating shaft (3) are sleeved on that rotating shaft (3) is gone up and the fork (4) that can rotate along rotating shaft, stride and be enclosed within the free-ended flexible sliding band of fork (5), drive element (1), connecting rod (2) and rotating shaft (3) are arranged at blanking material cover (6) lateral surface, fork (4) and flexible sliding band (5) are arranged at the blanking material cover inner chamber, and drive element (1) is connected with control system.

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