CN110743463A

CN110743463A - Accurate weighing device

Info

Publication number: CN110743463A
Application number: CN201910933080.9A
Authority: CN
Inventors: 罗毅
Original assignee: Wuxi Zhongying Kangyuan Automation Equipment Co Ltd
Current assignee: Wuxi Zhongying Kangyuan Automation Equipment Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-02-04

Abstract

The invention discloses an accurate weighing device which comprises a supporting arm and a bearing block, wherein the bearing block is arranged on the supporting arm through a weighing sensor, the bearing block is connected with a carrying component, and the carrying component is spaced from the supporting arm and the weighing sensor. The carrying assembly comprises a limiting plate, a supporting plate and a connecting block, the limiting plate and the supporting plate are connected through the connecting block, the limiting plate is located above the supporting plate, a through hole is formed in the limiting plate, the material cylinder penetrates through the limiting plate to be placed on the supporting plate, a rotary blanking structure is arranged above the material cylinder, and the rotary blanking structure is electrically connected with a weighing sensor and an electric control structure. In the accurate weighing device, the material in the material barrel is increased or decreased to cause the bearing change of the object supporting plate, and the weighing sensor for bearing the object supporting plate directly detects the weight change of the material barrel so as to accurately control the blanking quantity.

Description

Accurate weighing device

Technical Field

The invention relates to the field of accurate mixture ratio, in particular to an accurate weighing device.

Background

In the related prior art, powder proportioning is manually completed by manpower, even depends on the operation experience of mature operators, and has larger error.

Especially in hospitals, nursing homes and other places, the proportion requirement of various materials is high, and the prior art is difficult to meet the requirement.

Some mechanisms adopt equipment such as blanking machines to mix materials, but the batching precision of that kind of structure still can not satisfy the demand of accurate ratio.

Disclosure of Invention

The precise weighing device provided by the embodiment of the invention comprises a supporting arm and a bearing block, wherein the bearing block is arranged on the supporting arm through a weighing sensor, the bearing block is connected with a carrying component, the carrying component is spaced from the supporting arm and the weighing sensor,

the object carrying assembly comprises a limiting plate, an object supporting plate and a connecting block, the limiting plate is connected with the object supporting plate through the connecting block, the limiting plate is positioned above the object supporting plate, the limiting plate is provided with a through hole, the charging barrel penetrates through the limiting plate and is placed on the object supporting plate,

the rotary blanking structure is arranged above the charging barrel and is electrically connected with the weighing sensor and the electric control structure.

In the accurate weighing device, the material is increased or decreased, the bearing of the object supporting plate is changed, and the weighing sensor bearing the object supporting plate directly detects the change of the weight of the charging barrel, so that the blanking quantity is accurately controlled.

Further, the weighing sensor adopts an cantilever beam type weighing sensor.

Further, the limiting plate and the object supporting plate are parallel to each other.

Furthermore, the limiting plate is connected with the connecting block through a first connecting piece, the first connecting piece comprises a first piece and a second piece, and the first piece and the second piece are connected through a third piece and are perpendicular to each other in the x direction and the y direction.

Furthermore, the object supporting plate is provided with a limiting bulge.

Furthermore, the object supporting plate is fixedly connected with the connecting block through the suspension loop structures which are symmetrical left and right.

Furthermore, a plurality of positions on the connecting block are provided with mounting holes, and the mounting holes correspond to the hangers.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective view of a precision weighing apparatus according to an embodiment of the present invention;

FIG. 2 is another perspective view of a precision weighing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic plan view of a precision weighing apparatus according to an embodiment of the present invention;

fig. 4 is a perspective view illustrating a first coupling member of the precision weighing apparatus according to the embodiment of the present invention.

Detailed Description

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 4, an accurate weighing apparatus according to an embodiment of the present invention includes a supporting arm 1 and a bearing block 2, the bearing block 2 is disposed on the supporting arm 1 through a weighing sensor 3, the bearing block 2 is connected to a carrying assembly, and the carrying assembly is spaced from the supporting arm 1 and the weighing sensor 3. The object carrying assembly comprises a limiting plate 4, an object supporting plate 5 and a connecting block 6, the limiting plate 4 and the object supporting plate 5 are connected through the connecting block 6, the limiting plate 4 is located above the object supporting plate 5, a through hole 7 is formed in the limiting plate 4, and the material cylinder 8 penetrates through the limiting plate 4 to be placed on the object supporting plate 5. And a rotary blanking structure is arranged above the charging barrel 8 and is electrically connected with the weighing sensor 3 and the electric control structure.

In the accurate weighing device, the weight of the charging barrel 8 changes, so that the bearing of the object supporting plate 5 changes, and the weighing sensor 3 bearing the object supporting plate 5 directly detects the weight change of the charging barrel 8, so that the weight of the charging barrel is accurately detected. Specifically, according to user's needs, set up the threshold value in automatically controlled structure part, when weighing sensor 3 detected the weight that bearing block 2 and carried the whole weight change of thing subassembly, the rotatory blanking structure of feed cylinder 8 top can the automatic shutdown blanking, realizes accurate unloading.

The rotary blanking structure above the barrel 8 is described in detail in the documents of the previous applications by the applicant and will not be described in detail here.

Further, the applicant has considered that the material falls out of the cartridge 8, the load cell 3 detects a time delay, and therefore an advance can be provided in the electronic control structure. Such as: 50g of blanking is needed, when the weighing sensor 3 detects that the weight is reduced by 48.5g, a signal is sent to the electric control structure part, and the electric control structure part immediately sends an instruction to stop blanking of the rotary blanking structure above the charging barrel 8.

Further, the load cell 3 is an cantilever beam type load cell 3.

Cantilever beam formula weighing sensor 3, one end is fixed, and the one end loading adopts the steel ball to pass power, and upper and lower pressure head bears or two bulb formula structures, is equipped with good seal structure. The automatic centering after being stressed is good, the installation is easy, the use is convenient, and the interchangeability is good. The method is particularly suitable for the fine proportioning of the invention.

Further, the limiting plate 4 and the object supporting plate 5 are parallel to each other.

So, after the feed cylinder 8 is packed into, the feed cylinder 8 can keep the stack shell vertical, can not crooked, avoids the powder in the feed cylinder 8 to gather on the section of thick bamboo wall, and the time has been prolonged and has been moistened and solidify the bonding, has both wasted the material, influences sanitary situation again. The charging barrel 8 in the invention is kept vertical, so that the internal materials can be completely released, the materials cannot be wasted, and the health condition cannot be threatened.

Further, the limiting plate 4 and the connecting block 6 are connected through a first connecting piece, the first connecting piece comprises a first piece 9 and a second piece 10, and the first piece 9 and the second piece 10 are connected through a third piece 11 and are perpendicular to each other in the x direction and the y direction. Third piece 11 is crooked form, utilizes the stable characteristic of circular arc atress, stably connects first piece 9 and second piece 10 to stably connect limiting plate 4 and connecting block 6, guarantee that feed cylinder 8 places the stability on carrying the thing subassembly.

Furthermore, the object supporting plate 5 is provided with a limiting bulge 12. The limiting bulge 12 further limits the movement of the charging barrel 8 on the object supporting plate 5, and the reliability of the charging barrel 8 is ensured.

Further, the object supporting plate 5 is fixedly connected with the connecting block 6 through the suspension loop structures 13 which are symmetrical left and right. The suspension loop structure 13 has strong bearing capacity and high stability.

Furthermore, a plurality of positions on the connecting block 6 are provided with mounting holes 14, and the mounting holes 14 correspond to the hanging lug structure 13. So, when changing the feed cylinder 8 of unidimensional, can adjust the position that hangers structure 13 was placed to guarantee that feed cylinder 8 is in suitable state unloading.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The accurate weighing device is characterized by comprising a supporting arm (1) and a bearing block (2), wherein the bearing block is arranged on the supporting arm through a weighing sensor (3), the bearing block is connected with a carrying component, the carrying component is spaced from the supporting arm and the weighing sensor,

the carrying component comprises a limiting plate (4), a supporting plate (5) and a connecting block (6), the limiting plate and the supporting plate are connected through the connecting block, the limiting plate is positioned above the supporting plate, the limiting plate is provided with a through hole (7), the charging barrel (8) penetrates through the limiting plate and is placed on the supporting plate,

2. The precision weighing apparatus of claim 1, wherein the load cell is a cantilever beam load cell.

3. The precision weighing apparatus of claim 1, wherein the limit plate and the object holding plate are parallel to each other.

4. The precision weighing apparatus according to claim 1, wherein the limit plate and the connecting block are connected by a first connecting member comprising a first piece (9) and a second piece (10) connected by a third piece (11) and perpendicular to each other in the x-direction and the y-direction.

5. The precision weighing device according to claim 1, characterized in that the object supporting plate is provided with a limiting projection (12).

6. The precision weighing apparatus according to claim 1, wherein the object supporting plate is fixedly connected to the connecting block by a left-right symmetrical suspension loop structure (13).

7. The precision weighing apparatus according to claim 6, wherein the connecting block has a plurality of mounting holes (14) formed therein, the mounting holes corresponding to the structure of the suspension loop.