CN101782422B

CN101782422B - Scale

Info

Publication number: CN101782422B
Application number: CN2010100115308A
Authority: CN
Inventors: 胡东兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-07
Filing date: 2010-01-07
Publication date: 2011-11-16
Anticipated expiration: 2030-01-07
Also published as: CN101782422A

Abstract

The invention discloses a scale in the field of weighing apparatus, comprising a weighing hopper (1); a horizontal plane of the upper end of the weighing hopper (1) is provided with suspension sensors (2) which are fixedly arranged on a machine frame, all the sensors on the weighing hopper (1) are connected to a weighing display control measuring appliance (8) to control the operation of the scale; a horizontal plane of the lower end of the weighing hopper (1) is provided with a supporting sensors (4), all the supporting sensors (4) are fixedly arranged on the machine frame; all suspension sensors (4) on the weighing hopper (1) are connected with the weighing display control measuring appliance (8) to control operation of the scale; the scale is characterized in that the suspension sensors (2) and supporting sensors (4) are simultaneously arranged on the weighing hopper (1). The scale has the advantages of little drifting, stable operation, accurate measurement, high work efficiency, reduced maintenance intensity, long service life, safety and reliability, good adaptability and wide application range.

Description

A kind of scale

(1) technical field

The present invention relates to the equalizer technology field, specifically a kind ofly various article are carried out different meanings weigh the automatic or automanual machinery of weighing.

(2) technical background

Initial scale is the fulcrum scale, or perhaps steelyard, the mechanization degree height after, a face scale has just been arranged, just many fulcrums scale in one plane, it is exactly present platform balance, though precision has had large increase, but still do not satisfy the needs of social production, quantitative package product weight quality on the market is subjected to the general query of the whole society, ration package scale should be the most outstanding a kind of, ration package scale results from the seventies in last century in fact, initial weighing precision is also very coarse, approximately have only 10%, quantitative weighing increases rapidly weighing precision requirement standard, to the eighties, people's accuracy requirement just is increased to 0.2%, remain the target that people require up to this accuracy requirement today, its reason is exactly the reason of scale itself, it is the raising that scale has restricted packing scale machinery, at first the practice of decades is seen us: three grades of feed are that (packing each time quantitatively is divided into three grades: first order feed accounts for 60% of unit packaging weight to the packing scale important method that improves precision, second level feed accounts for 35%, third level feed accounts for 5%), it also is the embodiment that improves the efficient of weighing, the impact of this efficient just, make the individual layer planar support sensor type of original scale or the basis that the individual layer plane hangs sensor type to disintegrate, main performance is: 1, owing to generally use individual layer planar support sensor type or individual layer plane to hang the fit of sensor, run into the impact of gravity, or when concussion, not compensation mutually between the sensor, make all kinds of scale jitters, also be the drift phenomenon that it has often been said, control of quality and adaptive faculty are poor, inefficiency; 2, feeding type also claims the theory and technology accurately that adds French ration package scale and burden balance three grades of feed of shortage when using three grades of feed to instruct, the support of single layer sensor in addition, also be difficult for making the packing scale working signal stable, cause three grades of feed appearances without reality, or simply abandon three grades of feed; 3, discharging formula also claims the subtraction formula, and burden balance and ration package scale are used the belt discharging more, complex structure, and disturbing influence is strong, and error is big, and efficient is low, and trafficability characteristic is poor, lacks specification technique and instructs, and has increased unnecessary cost waste.

(3) summary of the invention

Technical matters to be solved by this invention is that above-mentioned prior art is improved to overcome its deficiency, provides and can stablize the metering setting of accurately weighing, to guarantee a kind of normal, use rationally of scale.

In order to achieve the above object, the present invention is achieved in that a kind of scale, include: weighing hopper, be provided with the suspension sensor in the surface level of its upper end, all hang sensor and are fixedly installed on the frame, on the weighing hopper all hang sensor and are connected the work of control scale with the demonstration control instrument of weighing; Be provided with the support sensor in the surface level of weighing hopper lower end, all support sensor and are fixedly installed on the frame, on the weighing hopper all support sensor and are connected with the demonstration control instrument of weighing, the work of control scale, described a kind of scale, it is characterized in that: suspension sensor and support sensor are installed on the weighing hopper simultaneously.

Described a kind of scale is characterized in that, the installation direction that hangs sensor is opposite with the installation direction that supports sensor.

Described a kind of scale is characterized in that, hangs sensor and supports the interchangeability that sensor has identical specified range and uses.

Described a kind of scale is characterized in that, the suspension sensor on the weighing hopper more than the center of gravity of weighing hopper, exceeds, overlaps or near the geometry entity edge of weighing hopper, and considers stress balance, makes it evenly to distribute with other sensor; Support sensor on the weighing hopper below the center of gravity of weighing hopper, exceeds, overlaps or near the geometry entity edge of weighing hopper, and considers stress balance, makes it and other sensor equiblibrium mass distribution.

Described a kind of scale is characterized in that the weighing hopper center of gravity is arranged at the center lower position.

Described a kind of scale, above weighing hopper, be provided with loader, can realize that under the control of control instrument three grades of feed finish quantitative package and quantitative ingredient work, be also referred to as the addition scale, low side when the feed door of loader is opened closes the blanking height that the blanking height of weighing hopper charge level in front of the door adds that the feed door closes closed procedure for the first time to feed and is called drop, it is characterized in that drop less than unit quantitative 25%.

Described a kind of scale, it is the addition scale, it is characterized in that loader control bin gate is similar to the face of fish, abbreviate the fish mouth type bin gate as, every fan fish mouth type bin gate is made up of three continuous sides, and the shape of side is to be similar to trapezoidal, rectangle or leg-of-mutton side, fixed rotating shaft is equipped with in upper end, side in the centre, two fan fish mouth type bin gates become make-up, one li one external symmetry to install, and close relatively along fixed rotating shaft and move, and are applicable to three grades of feed.

Described a kind of scale, lower end at weighing hopper is provided with Dump gate, can realize that under the control of control instrument quantitative discharging finishes quantitative ingredient and quantitative package work, also be the subtraction scale, Dump gate the gradient comprehensively is set, be defined as the angle angle of the domatic and surface level of Dump gate, though indivedual domatic gradients are big, but has equal comprehensive friction force with soft circular conical surface, or equal comprehensive adhesion, Dump gate all is designed to pyramid-shaped structures, is as the criterion with the circular conical surface gradient that is equal to friction force and the gradient is set; Storing up angle is exactly that bank is put in the gradient that can form maximum on the plane, stores up angle exactly, it is characterized in that comprehensively being provided with of Dump gate is in easy flights in storing up 120% of angle.

Described a kind of scale is the subtraction scale, and the minimum sectional area of the materials flow of flowing out from Dump gate is called the area that is provided with of Dump gate, it is characterized in that the area that is provided with of Dump gate, is not more than 3 ‰ of the quantitative discharging volume of same stages unit number.

Compared with the prior art a kind of scale of the present invention has outstanding substantive distinguishing features and marked improvement: 1, most importantly we have broken through a face scale, we have increased the suspension sensor on the basis of supporting sensor, with after having increased the support sensor on the suspension sensor basis, make compensation mutually between each sensor, make sensor signal that the stable impact and the concussion influence of exporting and can not be subjected to gravity be arranged, make all kinds of scale signal stabilizations, control of quality and adaptive faculty are strong, high efficiency; 2, the Stability Analysis of Structures that guarantees to support sensor and hang sensor, make the influence of impacting and shaking drop to minimum, 3, strictness is provided with the drop of addition scale, use fish mouth type loader control bin gate, can obtain to have greatly big, little aperture will be arranged for a short time, obtaining desirable trafficability characteristic and closing property, is the key that solves package packing machine practical space deficiencies such as not having the bucket packing scale and the excessive contradiction of drop, has guaranteed the smooth realization of three grades of feed; 4, provided the design main points of subtraction scale, made the subtraction scale simple in structure, cost reduces.

(4) description of drawings

The compages synoptic diagram of Fig. 1---a kind of scale of the present invention;

The xenogenesis form of the compages synoptic diagram of a kind of scale of Fig. 2----the present invention example;

Fig. 3---feed of the present invention is controlled bin gate, is also referred to as the three-view diagram of fish mouth type bin gate.

(5) embodiment

In order to understand better and to implement, provide specific embodiment below in conjunction with accompanying drawing, describe a kind of scale of the present invention in detail, as shown in Figure 1, 2, 3, present embodiment is a Multifunction weighing apparatus, it can have multiple scheme to make according to claim.

More firmly making weighing hopper 1 on the height, its upper end is loaded onto and is hung sensor 2, its lower end is loaded onto and is supported sensor 4, cross over the center of gravity of weighing hopper 1, be two different level devices, sensor 2 is with opposite with range sensors 4 installation directions 9, and guarantee the Stability Analysis of Structures of its scale body, the stress balance of each sensor hangs sensor 2 with all and is connected with control instrument 8 with all support sensors 4, has just made all high a kind of single scale of accuracy and efficient.

On the basis, the top of weighing hopper 1 is provided with the loader 6 of fish mouth type bin gate 10 in the above, designs suitable drop, makes it to be no more than quantitative 25%, just makes the addition scale that can realize three grades of feed.

If be provided with Dump gate 7 in the lower end of weighing hopper 1 again, the gradient and the size of Dump gate 7 suitably are set, make the comprehensive in easy flights of Dump gate 7 store up 120% of angle in material, the aperture area of bin gate 7 is not more than 3 ‰ of the quantitative volume of material of unit at the same level, just makes the subtraction scale of a precise and high efficiency.

A kind of scale of the present invention, be to satisfy the high efficiency production work requirements and produce, and hang sensor and support sensor composite stereo formula mounting means is key of the present invention, its principle: when weight is thrown to weighing hopper fast, support sensor because stressed increase, weighing hopper center of gravity moment moves down, and at this moment hangs sensor and reduces relatively with regard to stressed, otherwise when hanging the stressed increase of sensor, the support sensor is stressed just to be reduced relatively.Support sensor and compensate mutually, make scale systematic comparison balance, be beneficial to the work efficiency that improves various scales with hanging sensor.

Generally speaking, do not have a kind of scale of the present invention, and the various rational Application of scale, high-quality and efficient weighing is difficult to realize; Use a kind of scale of the present invention to realize weigh production safety, quality, efficient, mechanically stable, the unified raising of all index energy-conservation and economic benefit.

Claims

1. scale, include: weighing hopper (1), be provided with in the surface level of its upper end and hang sensor (2), all hang sensor (2) and are fixedly installed on the frame, on the weighing hopper (1) all hang sensor (2) and are connected with the demonstration control instrument (8) of weighing, the work of control scale; Be provided with in the surface level of weighing hopper (1) lower end and support sensor (4), all support sensor (4) and are fixedly installed on the frame, on the weighing hopper (1) all support sensor (4) and are connected with the demonstration control instrument (8) of weighing, the work of control scale, described a kind of scale is characterized in that: suspension sensor (2) and support sensor (4) are installed on the weighing hopper (1) simultaneously.

2. by the described a kind of scale of claim 1, it is characterized in that the installation direction (9) that hangs sensor (2) is opposite with the installation direction (9) that supports sensor (4).

3. by the described a kind of scale of claim 2, it is characterized in that, hang sensor (2) and support the interchangeability that sensor (4) has identical specified range and uses.

4. by the described a kind of scale of claim 3, it is characterized in that the suspension sensor (2) on the weighing hopper (1), more than the center of gravity of weighing hopper (1), exceed, overlap or near the geometry entity edge of weighing hopper (1), and consider stress balance, make it evenly to distribute with other sensor; Support sensor (4) on the weighing hopper (1) below the center of gravity of weighing hopper (1), exceeds, overlaps or near the geometry entity edge of weighing hopper (1), and considers stress balance, makes it and other sensor equiblibrium mass distribution.

5. by the described a kind of scale of claim 4, it is characterized in that the center of gravity of weighing hopper (1) is arranged at the center lower position.

6. by the described a kind of scale of claim 5, be provided with loader (6) in the top of weighing hopper (1), can realize that under the control of control instrument (8) three grades of feed finish quantitative package and quantitative ingredient work, be also referred to as the addition scale, low side when the feed door of loader (6) is opened closes the blanking weight between moment weighing hopper (1) charge level in front of the door for the first time to feed, add that the blanking weight that the feed door closes closed procedure is called drop, it is characterized in that drop less than unit quantitative 25%.

7. by the described a kind of scale of claim 6, it is the addition scale, it levies the face that the control bin gate (10) that is on the loader (6) is similar to fish, abbreviate the fish mouth type bin gate as, every fan fish mouth type bin gate (10) is made up of three continuous sides, the shape of side is to be similar to trapezoidal, rectangle or leg-of-mutton side, fixed rotating shaft (11) is equipped with in upper end, side in the centre, two fan fish mouth type bin gates (10) become make-up, one li one external symmetry to install, close relatively along fixed rotating shaft (11) again and move, be applicable to three grades of feed.

8. by the described a kind of scale of claim 5, be provided with Dump gate (7) in the lower end of weighing hopper (1), can realize that under the control of control instrument (8) quantitative discharging finishes quantitative ingredient and quantitative package work, also be the subtraction scale, Dump gate (7) the gradient comprehensively is set, be defined as the angle angle of the domatic and surface level of Dump gate (7), though indivedual domatic gradients are big, but has equal comprehensive friction force with soft circular conical surface, or equal comprehensive adhesion, Dump gate (7) all is designed to pyramid-shaped structures, is as the criterion with the circular conical surface gradient that is equal to friction force and the gradient is set; Storing up angle is exactly that bank is put in the gradient of storing up that can form maximum on the plane, stores up angle exactly, it is characterized in that comprehensively being provided with of Dump gate (7) is in easy flights in storing up 120% of angle.

9. by the described a kind of scale of claim 8, be the subtraction scale, the minimum sectional area of the materials flow of flowing out from Dump gate (7) is called the area that is provided with of Dump gate (7), the area that is provided with that it is characterized in that Dump gate (7) is not more than 3 ‰ of the quantitative discharging volume of same stages unit number.