Measuring hopper weighing device

Abstract

A weighing hopper weighing device belongs to the field of metering and weighing technical equipment and comprises a weighing hopper, a matched discharging mechanism and a weighing sensor arranged on the weighing hopper, the cross section of the bottom of the weighing hopper is in a W shape, and the weighing sensor is arranged at the bottom of the weighing hopper and located in the center of the W shape. By improving the structural layout of the weighing hopper and the weighing sensor, the phenomenon of unstable metering of the sensor can be effectively prevented during dynamic weighing, and the weighing range, the precision and the service life of the weighing sensor are also improved.

Description

Technical Field

[0001] The utility model belongs to the field of metering and weighing technical equipment, and particularly relates to a weighing device for a metering hopper. Background Art

[0002] In an automatic batching system, the design of a weighing metering hopper is extremely important, which greatly affects and limits the weighing accuracy and stability of materials. At the same time, it also plays a crucial role in the service life of weighing sensors.

[0003] In the cantilever beam weighing sensor metering hoppers currently in use, the vast majority of metering hoppers adopt a metering hopper with single-sided suspension force. Since the sensor of this kind of metering hopper is single-sidedly stressed and the two sides cannot be balanced, when performing dynamic weighing, the sensor value fluctuates too much and the value stabilization time is too long. For materials with relatively high precision requirements, the phenomenon that the specified weight is not reached and the batching system stops metering will occur. At the same time, the sensor is in a state of single-sided stress for a long time, which also affects the service life of the sensor. In view of this phenomenon, a new type of weighing device for a metering hopper has been developed, and the structure of the metering hopper has been redesigned to ensure that the two sides of the cantilever beam weighing sensor are evenly stressed, improve the stability of weighing during dynamic metering, and at the same time improve the service life of the weighing sensor. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a weighing device for a metering hopper, which can effectively prevent the phenomenon of unstable sensor metering during dynamic weighing by improving the structural layout of the weighing hopper and the weighing sensor, and also improve the weighing range, accuracy and service life of the weighing sensor.

[0005] The technical solution adopted by the utility model is: a weighing device for a metering hopper, including a weighing hopper, a supporting discharging mechanism, and a weighing sensor arranged on the weighing hopper. The shape of the bottom cross-section of the weighing hopper is in the shape of "W", and the weighing sensor is arranged at the bottom of the weighing hopper and located at the center position of the "W" shape.

[0006] Further, the discharging port of the weighing hopper is located on both sides of the "W" shape, and the discharging mechanisms matched with the discharging port are symmetrically arranged on both sides of the weighing hopper.

[0007] Further, the discharging mechanism includes a discharging valve plate hinged at the discharging port, and a driving cylinder hinged to the side wall of the weighing hopper in a supporting manner. The output end of the driving cylinder is hinged to the discharging valve plate by means of a connecting rib.

[0008] The beneficial effects produced by adopting the utility model: By improving the structural layout of the weighing hopper and the weighing sensor, the phenomenon of unstable sensor metering can be effectively prevented during dynamic weighing, and the weighing range, accuracy and service life of the weighing sensor are also improved. Brief Description of the Drawings

[0009] Figure 1 is a schematic structural diagram of the present utility model;

[0010] In the drawings: 1 is a weighing hopper, 2 is a weighing sensor, 3 is a discharge valve plate, 3-1 is a connecting rib, and 4 is a driving cylinder. Specific embodiments

[0011] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0012] Refer to the attached Figure 1 , a metering hopper weighing device, including a weighing hopper 1 and a supporting discharge mechanism, and a weighing sensor 2 provided on the weighing hopper 1. The shape of the bottom cross-section of the weighing hopper 1 is in the shape of "W", and the weighing sensor 2 is provided at the bottom of the weighing hopper 1 and located at the center position of the "W" shape.

[0013] The discharge port of the weighing hopper 1 is located on both sides of the "W" shape, and the discharge mechanisms matching the discharge ports are symmetrically arranged on both sides of the weighing hopper 1.

[0014] The discharge mechanism includes a discharge valve plate 3 hinged at the discharge port and a driving cylinder 4 hinged to the side wall of the weighing hopper 1. The output end of the driving cylinder 4 is hinged to the discharge valve plate 3 by means of a connecting rib 3-1.

[0015] When the present utility model is specifically implemented, the weighing sensor 2 is fixed directly below the weighing hopper 1 by means of a cantilever beam. As Figure 1 shown, with this setting of the weighing sensor 2, it is possible to prevent the material from falling onto the weighing sensor 2. The discharge valve plates 3 for the 2 discharge ports are fixed to the weighing hopper 1 by pins, the tail of the driving cylinder 4 is welded to the weighing hopper 1, and the output end of the driving cylinder 4 is hinged to the discharge valve plate 3. Due to the adoption of the method of fixing the weighing sensor 2 in the center, the weighing range, accuracy, and service life of the weighing sensor 2 are also improved.

[0016] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. Measuring hopper weighing device, comprising a weighing hopper (1) and a matching discharging mechanism, and a weighing sensor (2) arranged on the weighing hopper (1), characterized in that: The shape of the bottom cross-section of the weighing hopper (1) is "W"-shaped, and the weighing sensor (2) is fixed to the bottom of the weighing hopper (1) by means of a cantilever beam and is located at the center of the "W" shape.

2. The weighing device for the measuring hopper according to claim 1, wherein: The discharge opening of the weighing hopper (1) is located on both sides of the "W" shape, and the discharge mechanism cooperating with the discharge opening is symmetrically arranged on both sides of the weighing hopper (1).

3. The weighing device for measuring hopper according to claim 1, characterized in that: The discharge mechanism includes a discharge valve plate (3) hinged at the discharge opening and a driving cylinder (4) hinged to the side wall of the weighing hopper (1) in a matching manner. The output end of the driving cylinder (4) is hinged to the discharge valve plate (3) by means of a connecting rib (3-1).

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