CN-224216149-U - High-precision chute weight-checking scale

CN224216149UCN 224216149 UCN224216149 UCN 224216149UCN-224216149-U

Abstract

The high-precision slide slot weight-checking balance comprises a control cabinet, a mounting base, a strain type weighing sensor and a weighing slide slot, wherein the weighing slide slot is connected with a bearing end of the strain type weighing sensor positioned below the weighing slide slot, a fixed end of the strain type weighing sensor is connected with a mounting bottom plate positioned below the strain type weighing sensor, the strain type weighing sensor is electrically connected with the control cabinet, the weighing slide slot is a long linear smooth slot body, the high-precision slide slot weight-checking balance further comprises a strain type weighing sensor used for compensation and a weighing slide slot used for compensation, the weighing slide slot used for compensation is connected with a bearing end of the strain type weighing sensor used for compensation positioned below the weighing slide slot, a fixed end of the strain type weighing sensor used for compensation is connected with a mounting bottom plate positioned below the weighing slide slot, the strain type weighing sensor used for compensation is electrically connected with the control cabinet, the strain type weighing sensor used for compensation and the strain type weighing sensor used for compensation are arranged in a close range, side by side and parallel arrangement, and the weighing slide slot used for compensation is also arranged in a close range and side by side parallel arrangement.

Inventors

LIU JIUMING
TANG XIAONIU

Assignees

山东西泰克仪器有限公司

Dates

Publication Date: 20260508
Application Date: 20250506

Claims (9)

1. A high-precision chute weight-checking scale comprises a control cabinet, a mounting base, a strain type weighing sensor and a weighing chute, wherein the weighing chute is connected with a bearing end of the strain type weighing sensor positioned below the weighing chute, a fixed end of the strain type weighing sensor is connected with a mounting bottom plate positioned below the weighing chute, the strain type weighing sensor is electrically connected with the control cabinet, the weighing chute is a long-strip linear smooth chute body, and is characterized by further comprising a strain type weighing sensor used for compensation and a weighing chute used for compensation, the strain type weighing sensor used for compensation is a sensor which is identical with the strain type weighing sensor, the weighing chute used for compensation is a chute which is identical with the weighing chute in material, shape, size and weight, the weighing chute used for compensation is connected with the bearing end of the strain type weighing sensor positioned below the weighing chute, the fixed end of the strain type weighing sensor used for compensation is electrically connected with the control cabinet, and the strain type weighing sensor used for compensation is arranged in parallel to the weighing chute, and is also arranged in parallel to the weighing chute and is parallel to the weighing chute in a close range.
2. The high-precision chute checkweigher of claim 1, wherein the length of the weighing chute is more than 10 times its width.
3. The high-precision chute checkweigher of claim 1, further comprising a compliant chute that is docked at the loading end of the weighing chute and parallel to the weighing chute.
4. The high-precision chute checkweigher of claim 1, further comprising a delay chute connected to the discharge end of the weighing chute in parallel with the weighing chute, wherein the discharge end of the delay chute is connected to the rejection mechanism.
5. The high-precision chute checkweigher of claim 1, wherein the line connecting the weighing chute to the feed end of the weighing chute for compensation is parallel to the horizontal plane.
6. A high precision slide checkweigher as claimed in claim 1 in which the weighing slide is inclined downwardly and the compensating weighing slide is also inclined downwardly.
7. The high-precision chute checkweigher of claim 1, wherein the mounting base plate is connected to a rotating riser, the rotating riser being connected to the housing.
8. The high-precision slide checkweigher of claim 1 further comprising a plurality of parallel sets of strain gauge weighing sensors and weighing slides sharing a set of compensated strain gauge weighing sensors and compensated weighing slides, wherein all sets of work-weighing slides and strain gauge weighing sensors are symmetrically distributed on both sides of the compensated weighing slides and compensated strain gauge weighing sensors.
9. The high-precision chute checkweigher of claim 8, further comprising a plurality of parallel feed inlets of parallel weighing chutes in butt joint.

Description

High-precision chute weight-checking scale Technical Field The scheme relates to a high-precision sliding chute weight-detecting scale, in particular to a high-precision sliding chute weight-detecting scale aiming at standard articles such as capsules, tablets, pills, needle tubes, medicine bottles, soft bags, medicine boxes and the like in the pharmaceutical and food industries. Background In mass production of capsules, tablets, pills, medicine bottles and the like in the fields of pharmacy, health products, foods, industry standard components and the like, a lot of objects are required to be detected by weight one by one, and the unqualified weight objects are required to be removed after a lot of detection, wherein a chute weighing technology is adopted, so that objects are weighed in the sliding process of the chute, namely, a long linear smooth chute is connected with a bearing end of a strain type weighing sensor positioned below the chute, the chute becomes a weighing platform, the length direction of the chute is perpendicular to the stress direction of the strain type weighing sensor, the fixed end of the strain type weighing sensor is connected with a mounting bottom plate positioned below the fixed end of the strain type weighing sensor, and the plane in which the length direction of the chute is perpendicular to the horizontal plane of the bearing end of the strain type weighing sensor. The section of the weighing chute can be U-shaped, and the bottom of the U-shaped chute can be a large V bottom or a flat bottom. The section of the weighing chute can also be V-shaped or plane. If the length direction of the sliding groove is parallel to the horizontal plane, the sliding groove is called a horizontal sliding groove weight scale, and when the sliding groove weight scale is used, the detected object is horizontally moved at a high speed by a material sending mechanism in front of the sliding groove and slides through a sliding groove weighing platform. More is the angle of design installation base to the horizontal plane, lets spout length direction to horizontal plane slope sufficient angle, is called tilting spout checkweigher, and during the use, the detected object is sent by the feed mechanism before the spout one by one, and the detected object is by its own dead weight independently to slide and pass through whole spout weighing platform. The strain type weighing sensor is electrically connected with the control cabinet, and when the weighed object is pressed on the weighing chute (weighing platform), the strain type weighing sensor can generate an electric signal to be transmitted to the control cabinet, and the control cabinet obtains the weight value of the weight object to be detected by adopting a certain algorithm. However, as the vertical vibration of the foundation can also make the strain type weighing sensor output signals through the fixed end of the strain type weighing sensor, breeze or air flow can make the strain type weighing sensor output signals through acting on the surface of the weighing chute, the touch action of an operator on the mounting bottom plate or the horizontal translational mechanical vibration or horizontal torsion action of various other devices connected with the chute checkweigher can also make the strain type weighing sensor output strain analog signals through the mounting bottom plate of the strain type weighing sensor, and the signals are not real weight signals of the checked weight object and belong to interference signals, and the interference signals cannot be avoided on site, so that the actual precision of the on-site work of the checkweigher is greatly reduced, and the application range of the checkweigher is greatly shortened. Since the dynamic chute weight scale is used, in order to ensure the weighing precision, the object to be weighed must be pressed on the weighing platform for a sufficient time, so the length of the weighing chute must be designed to be long enough for the length, sliding speed and required precision of the object to be weighed, and the length of the weighing chute is generally more than 10 times of the width of the weighing chute. For a strip-shaped weighing chute (weighing platform), the opening of the chute body is upward, wind is easily blown, the wind area is large, the interference of air flow to the strain type weighing sensor is large, and the interference of torsion actions from external operation, touch and the like to the mounting bottom plate of the strain type weighing sensor to the output of the strain type weighing sensor is large because the moment of inertia of the connection part of the bearing end of the strain type weighing sensor is large. Because the length of the weighing chute is longer than the length of the object to be weighed, and the length of the weighing chute is more than 10 times of the width of the weighing chute, the moment of inertia of the weighing chute on the mounting point of the