CN214121401U

CN214121401U - Digital weighing sensor of self-adaptation anti-overloading structure

Info

Publication number: CN214121401U
Application number: CN202120246995.5U
Authority: CN
Inventors: 廖有钧; 松崎敏满; 周姚
Original assignee: Shanghai Yamato Scale Co ltd
Current assignee: Shanghai Yamato Scale Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-09-03
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a digital weighing sensor of self-adaptation overload prevention structure, elastomer body including the cavity, be equipped with four at least group strain gauges in the elastomer body cavity, one side of elastomer body is equipped with two sets of detachable at least and connects the connector, the strain gauge is through connecting the connector signal connection machine control system fast. The utility model provides a weighing sensor is digital weighing sensor, and this sensor communicates weight signal transfer to machine control system, but the change of precision measurement filling in-process weight. Simultaneously, the utility model provides a weighing sensor protection level is IP67K-68K, can bear continuous high pressure and wash.

Description

Digital weighing sensor of self-adaptation anti-overloading structure

Technical Field

The utility model relates to a sensor in weighing and metering field, especially a digital weighing sensor of self-adaptation anti-overloading structure.

Background

The risk of overloading of the weighing cell when it is loaded to its maximum range is always present, so weighing equipment manufacturers currently adopt the following solutions for overload protection in the cold-chain packaging and aseptic filling production processes: the overload protection is completed by adjusting the limiting device on the external weighing support module. If the maximum range exceeds a certain value, a mechanical limit is generated through a specific structure. But the external stop device scheme operating efficiency is lower, has the installation accumulative error big to occupy shortcomings such as bulky.

In addition, weighing equipment manufacturers have employed analog weighing cells during cold chain packaging and aseptic filling operations. But when weighing data is transmitted remotely, the interference resistance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an aseptic filling equipment digital weighing sensor to in the overload structure of integral type self-adaptation is transformed to the function of external weighing module.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a digital weighing sensor of self-adaptation overload prevention structure, includes the elastomer body of cavity, be equipped with four at least groups of foil gauges in the elastomer body cavity, one side of elastomer body is equipped with two sets of detachable quick-connect connects communication joint at least, the foil gauge passes through quick-connect connects communication joint signal connection machine control system.

Preferably, the quick-plug communication connector comprises a four-core quick connector and a twelve-core quick connector, and the quick connectors are detachably mounted, so that the connectors are convenient to replace.

Preferably, the quick-connect communication connector is fixed on the elastic body in a mode of locking the front plate rear mounting plate.

Preferably, a digital substrate is installed in the cavity of the elastic body, and the digital substrate is in communication connection with a machine control system.

Preferably, four groups of bosses are arranged in the cavity of the elastomer body, and the four groups of bosses are respectively used for installing the digital substrate through pan head screws.

Preferably, one side of the elastomer body is provided with a long groove, a limiting device penetrates through the long groove, and the limiting device plays a role in overload protection of the sensor.

Preferably, the limiting device comprises a support stud, the support stud penetrates through the elastomer body to the inside of the long groove and is locked and connected through a locking nut, and the support stud plays a limiting role and is used for protecting the sensor during weighing overload.

Preferably, the elastomer body is made of stainless steel.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model adopts the aseptic filling weighing device with an integrated self-adaptive overload structure, has excellent overload resistance, and can greatly simplify the structure and volume of the product;

2. compared with a sensing modular structure, the integrated structure of the utility model is convenient to install and use, and has higher use precision;

3. the utility model has excellent load characteristic, creep characteristic, temperature characteristic and moisture-proof characteristic;

4. the utility model discloses have high precision: can be accurate to grams and is very easy to calibrate;

5. manufacturers would also benefit from the advantages of digital weighing techniques because the filling algorithm is a real challenge, including filtration, control, settling time and response time, among others. The digital weighing sensor greatly facilitates the setting process, integrates a filling algorithm, can be adjusted through special software, and is communicated with a machine control system through an I/O or field bus;

6. the utility model adopts a digital weighing sensor, the sensing distance is long, and the anti-interference capability is strong;

7. the utility model discloses the longer occasion of distance between specially adapted weighing sensor and the control instrument. And aseptic filling occasions requiring high quality, high viscosity and high hygiene.

The utility model provides a weighing sensor is digital weighing sensor, and this sensor communicates weight signal transfer to machine control system, but the change of precision measurement filling in-process weight. Simultaneously, the utility model provides a weighing sensor protection level is IP67K-68K, can bear continuous high pressure and wash.

Drawings

Fig. 1 is a schematic side view of a digital weighing sensor with an adaptive overload protection structure according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a digital weighing sensor with an adaptive overload prevention structure according to the present invention;

fig. 3 is an enlarged view of a part a of the digital weighing sensor with the adaptive overload prevention structure according to the present invention; fig. 4 is a left side view of the internal structure of the digital weighing sensor with the adaptive overload protection structure according to the present invention;

fig. 5 is an attached view of the internal structure of the digital weighing sensor with the adaptive overload protection structure according to the present invention.

The numbers in the figure are as follows:

1. a digital substrate; 2. an elastomer body; 3. a four-core quick connector; 4. a twelve-core quick connector; 5. a support stud; 6. locking the nut; 7. a strain gauge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in fig. 1 to 5, for the digital weighing sensor with adaptive overload prevention structure provided by the present invention, the digital weighing sensor includes an elastomer body 2 with a stainless steel cavity, a strain gauge 7, a digital substrate 1, a quick connector 3, a quick connector 4, a limit stud 5 and a lock nut 6; four groups of strain gauges 7 are arranged in the cavity of the elastic body 2, two groups of detachable quick plugging communication connectors are arranged on one side of the elastic body 2, and the strain gauges 7 are connected with a machine control system through signals of the quick plugging communication connectors. The quick plug-in communication connector comprises a four-core quick connector 3 and a twelve-core quick connector 4, wherein the quick connectors are detachably mounted in a quick mounting mode, so that the connectors can be quickly replaced in an emergency; the quick plug-in communication connector is fixed on the elastic body 2 in a mode of locking the plate rear mounting plate front.

Further, for the data of showing weighing, the intracavity installation at elastomer body 2 is equipped with digital substrate 1, 2 intracavity of elastomer body are equipped with four groups of bosss, four groups of bosss are respectively through pan head screw installation digital substrate 1, and it is for the convenience of later stage debugging, easy maintenance change to pass through the pan head screw. The digital substrate 1 is connected with a machine control system in a communication way, and the communication result is displayed on the digital substrate 1 through the machine control system.

Furthermore, in order to avoid the damage of the sensor caused by weighing overload, one side of the elastomer body 2 is provided with a long groove, a limiting device is arranged on the long groove in a penetrating manner, and the limiting device plays a role in overload protection of the sensor; the limiting device comprises a supporting stud 5, the supporting stud 5 penetrates through the elastomer body 2 to the long groove and is fixed through a locking nut 6, the supporting stud plays a limiting role, damage caused by overload of the sensor can be avoided, and a protection effect is achieved.

Further, in order to facilitate cleaning, the elastomer body 2 is made of stainless steel and can resist corrosion and oxidation because the elastomer body is contacted with a chemical cleaning agent during cleaning.

The utility model discloses an all weigh the measurement through cushion, bolt fixed connection tray in elastomer body 2's top, side, the utility model discloses specific theory of operation as follows:

the utility model discloses weighing sensor's measurement adopts the strain gauge principle, and foil gage 7 is fixed on elastomer body 2, and four foil gages are linked together and are constituteed a wheatstone bridge. When the external force causes the elastic body 2 to deform, the strain gauge 7 on the elastic body 2 deforms accordingly, and the resistance value of the strain gauge 7 changes correspondingly due to the change of the external shape of the strain gauge 7, namely when the resistance of the strain gauge 7 changes due to the stress of the sensor, the bridge is unbalanced, and under the condition that the excitation voltage is not changed, the magnitude of the output signal is in direct proportion to the stress of the sensor, so that weighing and metering are performed.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a digital weighing sensor of self-adaptation overload prevention structure, its characterized in that, elastomer body (2) including the cavity, be equipped with four at least groups foil gage (7) in elastomer body (2) cavity, one side of elastomer body (2) is equipped with two sets of detachable at least and connects the communication joint fast, foil gage (7) connect the signal connection machine control system through the fast speed joint.

2. The digital weighing sensor with the adaptive overload prevention structure as claimed in claim 1, wherein the quick-plug communication connector comprises a four-core quick connector (3) and a twelve-core quick connector (4), and the quick connectors are detachably mounted to facilitate connector replacement.

3. The digital weighing sensor with the self-adaptive overload prevention structure as claimed in any one of claims 1 or 2, wherein the quick-plug communication connector is fixed on the elastomer body (2) in a mode of locking the rear mounting plate and the front mounting plate.

4. The digital weighing sensor with the adaptive overload prevention structure as claimed in claim 1, wherein a digital substrate (1) is arranged in the cavity of the elastomer body (2), and the digital substrate (1) is in communication connection with a machine control system.

5. The digital weighing sensor with the self-adaptive overload prevention structure is characterized in that four groups of bosses are arranged in the cavity of the elastomer body (2), and the four groups of bosses are respectively used for installing the digital substrate (1) through pan head screws.

6. The digital weighing sensor with the self-adaptive overload prevention structure according to claim 1, wherein one side of the elastomer body (2) is provided with a long groove, a limiting device is arranged on the long groove in a penetrating manner, and the limiting device plays a role in overload protection of the sensor.

7. The digital weighing sensor with the adaptive overload prevention structure according to claim 6, wherein the limiting device comprises a support stud (5), the support stud (5) penetrates through the elastomer body (2) to the elongated slot and is locked and connected through a locking nut (6), and the support stud plays a limiting role and is used for protecting the sensor during weighing overload.

8. The digital weighing sensor with the adaptive overload prevention structure as claimed in claim 1, wherein the elastomer body (2) is made of stainless steel.