CN2442248Y

CN2442248Y - Quantitative mechanism for weighing

Info

Publication number: CN2442248Y
Application number: CN 00215907
Authority: CN
Inventors: 刘方芝; 高新德
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-17
Filing date: 2000-08-17
Publication date: 2001-08-08
Anticipated expiration: 2010-08-17

Abstract

The utility model relates to a quantitative mechanism for weighing, and particularly a suspended type electronic quantitative weighing mechanism using a single weighting sensor. The quantitative mechanism for weighing is mainly composed of a bracket, a measuring hopper, a hopper door, a weighting sensor and a driving actuating mechanism, wherein, the bracket is a U-shaped frame; the weighting sensor is connected with the measuring hopper through a suspended plate; the hopper door is connected by auxiliary circular plates welded on the driving actuating mechanism and the measuring hopper; the driving actuating mechanism is composed of a cylinder, a dialing plate, a dialing pin, a rotating shaft and a nylon sleeve. The quantitative mechanism for weighing reasonably uses design space, and makes the stress of the sensor be in ideal state; the utility model can ensure that the mechanism stably and reliably works for a long time.

Description

A kind of quantitative mechanism of weighing

The utility model relates to electronics and weighs device, and a kind of quantitative mechanism of suspension type electronic-weighing that uses single LOAD CELLS particularly is provided.

The utility model patented claim a few days ago, for guaranteeing the relative consistent of packaging bag mark weight and actual weight, before material package, must carry out measuring fixed amount, in " volumetric method " quantitative manner commonly used, though can obtain to measure faster speed, but it is very big that this method is influenced by material characteristic, and general difficulty has the very high accuracy of measuring, and existing " weight method " quantitative manner that can obtained high accuracy replaces.The miniature electric that existing weighing tens restrains several kilograms of range materials is weighed in the quantitative mechanism, mostly be to adopt " single arm type " structure, be the side of LOAD CELLS at weighing hopper, weighing hopper adds or blowing tailheaviness vertical line and sensor design stress point just have certain distance like this, behind the intact blowing of every metering, the bucket body time of vibration prolongs relatively, influences metering speed; Concerning sensor,, influenced the long-time stability and the serviceable life of the proportioning device of weighing owing to be in imperfect stress for a long time.

Goal of the invention of the present utility model is that providing a kind of can quick and precisely measure, the quantitative mechanism of suspension type electronic-weighing of the reliably working that can maintain a long-term stability again at the deficiency of prior art existence.

Foregoing invention purpose of the present utility model realizes by following technical proposals:

A kind of quantitative mechanism of weighing, mainly form by support 1, weigh-hatching plant 7, hopper door 10, LOAD CELLS 4 and transmission topworks, it is characterized in that described support 1 is the U-shaped framework, LOAD CELLS is connected with weigh-hatching plant 7 by hanging board 2, hopper door 10 is connected by the auxiliary plectane 11 of joining weldering on transmission topworks and the weigh-hatching plant 7, transmission topworks by cylinder 16, dial plate 14, finger 15, rotating shaft 13 and nylon jacket 12 and form.Support 1 is a rigidity U-shaped framework, is welded with bearing plate 8 on support 1, and LOAD CELLS 4 is installed on bearing plate 8, is provided with stop screw 9 below the LOAD CELLS 4.Be fixed with trough girder 3 on the LOAD CELLS 4, the two ends of beam are connected with weigh-hatching plant 7 two ends by hanging board 2.In the middle of U type framework and weigh-hatching plant 7 that support 1 constitutes, main feed device 5 and thin feeder 6 are installed.In feed hopper bottom is hopper door 10, hopper door 10 two ends by joining weldering on rotating shaft 13 and the hopper auxiliary plectane 11 and plectane in the nylon jacket 12 of inlaying be connected.Also be connected with at an end of hopper door 10 and dial plate 14, pull out plate and be connected with cylinder 16 by finger 15, the other end of cylinder 16 is fixed on the weigh-hatching plant bucket body, also is provided with throttling valve 17 in the draft tube of cylinder 16 and escape pipe.

According to the narration of technique scheme as can be known: this scheme is reasonably used the design space, make material put on weigh-hatching plant evenly, apace, lean on the hopper both sides to hang to pull weight of material in the hopper is passed to LOAD CELLS exactly, and transmission topworks has adopted action to carry out fast cylinder as master member, neatly weigh-hatching plant and hopper door are linked together with finger, group plate, rotating shaft and non-lubricating nylon jacket, make stability of rotation, quick, it is convenient to install, debug, and maintenance workload significantly reduces.Originally weigh that quantitative mechanism has overcome in " single arm type " structure because the deficiency that sensor stress point and the bucket body time of vibration that weigh-hatching plant adds or blowing tailheaviness vertical line distance causes are grown, and make the stressed perfect condition that is in of sensor, guaranteed that mechanism's energy is steady in a long-term, worked reliably.

Below in conjunction with accompanying drawing, the utility model is described in more detail.

Fig. 1 is the weigh structural representation of quantitative mechanism of the utility model:

Fig. 2 is the left view of the quantitative mechanism of weighing shown in Figure 1:

Fig. 3 is transmission topworks (1 part) enlarged drawing in the quantitative mechanism of weighing shown in Figure 1.

Embodiment:

A kind of quantitative mechanism of weighing, mainly form by support 1, weigh-hatching plant 7, hopper door 10, LOAD CELLS 4 and transmission topworks, it is characterized in that described support 1 is the U-shaped framework, LOAD CELLS is connected with weigh-hatching plant 7 by hanging board 2, hopper door 10 is connected by the auxiliary plectane 11 of joining weldering on transmission topworks and the weigh-hatching plant 7, described transmission topworks by cylinder 16, dial plate 14, finger 15, rotating shaft 13 and nylon jacket 12 and form.Described support 1 is a rigidity U-shaped framework, and the centre position is welded with bearing plate 8 on support 1, and LOAD CELLS 4 is installed on bearing plate 8, is provided with stop screw 9 below the LOAD CELLS 4, is used to protect sensor to avoid damaging under the overload situation.Be fixed with trough girder 3 on the LOAD CELLS 4, the two ends of beam are connected with weigh-hatching plant 7 two ends by hanging board 2, guarantee the sensor design stress point and the hopper center of gravity adds or blowing after center of gravity on last next bar perpendicular line, and LOAD CELLS stress point and hopper center of gravity have the distance of a fixed length, under the same stiffness condition, add or blowing rear hopper vibration reduces relatively to the influence of sensor, shorten stabilization time, improved metering speed.In the middle of U type framework and weigh-hatching plant 7 that support 1 constitutes, main feed device 5 and thin feeder 6 are installed, and main feed device quick feeding during beginning is when being about to arrive quantitative values, thin feeder feeding makes this device obtain maximum relatively metering speed and accuracy with the blanking offset of minimum.In feed hopper bottom is arc surfaced hopper door 10, hopper door 10 two ends by joining weldering on screwed rotating shaft 13 and the hopper auxiliary plectane 11 and plectane in the nylon jacket 12 of inlaying be connected, because of nylon fatigue strength height, big, the good heat resistance of rigidity, and friction factor is low, wear-resisting, has guaranteed that this gear train can long-term stable operation.End at hopper door 10 also is connected with group plate 14, pulling out plate is connected with cylinder 16 by finger 15, the other end of cylinder 16 is fixed on the weigh-hatching plant bucket body, in the draft tube of cylinder 16 and escape pipe, also be provided with throttling valve 17, in order to regulate the movement velocity of executive components such as compressed-air actuated flow in the gas circuit, change cylinder, make motion milder, thereby reduce to close or open the door, shorten stabilization time the vibratory impulse of hopper.

According to the narration of technique scheme as can be known: this scheme is reasonably used the design space, make material put on weigh-hatching plant evenly, apace, lean on the hopper both sides to hang to pull weight of material in the hopper is passed to LOAD CELLS exactly, and transmission topworks has adopted action to carry out fast cylinder as master member, neatly weigh-hatching plant and hopper door are linked together with finger, group plate, rotating shaft and non-lubricating nylon jacket, make stability of rotation, quick, it is convenient to install, debug, and maintenance workload significantly reduces.Originally weigh that quantitative mechanism has overcome in " single arm type " structure because the deficiency that sensor stress point and the bucket body time of vibration that weigh-hatching plant adds or the distance of blowing tailheaviness vertical line causes are grown, and make the stressed perfect condition that is in of sensor, guaranteed that mechanism's energy is steady in a long-term, worked reliably.

Claims

1, a kind of quantitative mechanism of weighing, comprise: support [1], weigh-hatching plant [7], hopper door [10], several parts of LOAD CELLS [4] and transmission topworks, it is characterized in that described support [1] is the U-shaped framework, LOAD CELLS [4] is connected with weigh-hatching plant [7] by hanging board [2], hopper door [10] is connected by the auxiliary plectane [11] of joining weldering on transmission topworks and the weigh-hatching plant [7], transmission topworks by cylinder [16], dial plate [14], finger [15], rotating shaft [13] and nylon jacket [12] and form.

2, the quantitative mechanism of weighing according to claim 1 is characterized in that being provided with trough girder [3] between described LOAD CELLS [4] and the weigh-hatching plant [7].

3, the quantitative mechanism of weighing according to claim 2 is characterized in that the lower end of described LOAD CELLS [4] is provided with stop screw [9].

4, the quantitative mechanism of weighing according to claim 3 is characterized in that being provided with between described support [1] and the weigh-hatching plant [7] main feed device [5] and thin feeder [6].

5, the quantitative mechanism of weighing according to claim 4 is characterized in that being connected with nylon jacket [12] by rotating shaft [13] between the last auxiliary plectane [11] that is provided with of described hopper door [10] and weigh-hatching plant [7].

6, the quantitative mechanism of weighing according to claim 5 is characterized in that the draft tube and the escape pipe of the leading part cylinder [16] of described transmission topworks is provided with throttling valve [17].