Front-end detection device of liquid filling equipment

Abstract

The utility model discloses a front-end detection device of liquid filling equipment, which solves the problems of missing detection and false detection of the existing detection device, and comprises a bottle, a lever assembly, a gap bridge plate, a hemisphere, a magnetic metal counterweight and an inductive sensor, wherein the bottle is driven by rotation of the driving plate to move on the gap bridge plate, the bottom of the gap bridge plate is connected with the lever assembly through a first bolt, the hemisphere is welded to the upper portion of the lever assembly, a round hole is formed in the gap bridge plate, and the hemisphere penetrates through the round hole of the gap bridge plate; the magnetic metal balance weight is welded to the tail of the lower end of the lever assembly, the inductance support is arranged on one side of the lever assembly and installed at the bottom of the gap bridge plate through a second bolt, the inductance sensor is installed on the inductance support, and the magnetic metal balance weight and the inductance sensor are installed adjacently. According to the utility model, the inductance sensor is matched with the magnetic metal counterweight for use, so that high-precision detection on the existence of the bottle can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid filling equipment, in particular to a front-end detection device of liquid filling equipment. Background Art

[0002] In the daily operation of liquid filling equipment, the front-end detection device plays a vital role. It is responsible for accurately detecting the bottles on the conveyor chain before filling to ensure the normal operation of the filling equipment and product quality. However, traditional detection methods such as photoelectric sensors and ultrasonic sensors have obvious limitations when facing specific situations.

[0003] Although photoelectric sensors are widely used in the field of industrial automation, when detecting highly transparent bottles or dark bottles, due to the limitation of their working principle, there is a possibility that light penetrates the bottle or is refracted and deflected (highly transparent bottles), or is mostly or completely absorbed (dark bottles). As a result, no or weak light is reflected back to the photoelectric switch, and the bottle cannot be detected (this situation is hereinafter referred to as missed detection). The filling equipment does not fill, and the empty bottles flow into the subsequent process or are directly packed and flow into the market, causing serious quality problems. Even if expensive foreign imported brand photoelectric sensors are used, missed detection is still likely to occur and cannot be completely eliminated.

[0004] Although ultrasonic sensors can detect a wider range, their detection principle is based on sound wave reflection, and there are many attached parts on the filling equipment, which may cause the sound waves to be disturbed during the transmission process, resulting in false detection. That is, in the absence of bottles, the ultrasonic sensor may also output signals, causing the filling machine to empty and waste the filling liquid. Utility Model Content

[0005] The utility model provides a front-end detection device for liquid filling equipment to solve the technical problems of missed detection and false detection in existing detection devices.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present application provides a front-end detection device for liquid filling equipment, comprising a bottle, a lever assembly, a bridge plate, a hemisphere, a magnetic metal counterweight and an inductive sensor; wherein the bottle moves on the bridge plate under the rotation of a dial, the bottom of the bridge plate is connected to the lever assembly through a first bolt, the hemisphere is welded to the upper part of the lever assembly, a round hole is provided on the bridge plate, and the hemisphere passes through the round hole of the bridge plate;

[0008] The magnetic metal counterweight is welded to the lower tail of the lever assembly. An inductor bracket is provided on one side of the lever assembly. The inductor bracket is installed at the bottom of the bridge plate through a second bolt. The inductor sensor is installed on the inductor bracket, and the magnetic metal counterweight is installed adjacent to the inductor sensor.

[0009] Furthermore, the lever assembly includes a lever and an angle code, wherein the lever and the angle code are connected via a pin shaft, and a stop pin is provided on the angle code for limiting the freedom of deflection of the lever to prevent the lever from resetting after being pressed down by a rapid impact.

[0010] Furthermore, the hemisphere is exposed by 2-4 mm through the circular hole of the bridge plate so as to contact the bottle.

[0011] Furthermore, the inductive sensor is a metal detection inductive sensor, the detection distance of which is 5 mm, and it only identifies magnetic metals.

[0012] Beneficial effects achieved by the utility model:

[0013] (1) The front-end detection device of the liquid filling equipment provided by the utility model can realize high-precision detection of the presence or absence of the bottle through the use of an inductive sensor and a magnetic metal counterweight. When a bottle passes through, the impact force causes the lever assembly to deflect, thereby changing the magnetic field inside the inductive sensor, generating an induced current, and accurately outputting a signal. This non-contact detection method greatly improves the accuracy of the detection and reduces the false detection rate. In addition, the inductive sensor can quickly respond to the deflection displacement of the lever assembly and immediately output a signal to the filling equipment controller. This fast response feature ensures that the liquid filling equipment can quickly perform subsequent filling actions, thereby improving the overall production efficiency.

[0014] (2) The front-end detection device for liquid filling equipment provided by the utility model has a simple structural design, and the connections between the various components are achieved by bolts or pins, which are easy to disassemble and replace. This greatly reduces the difficulty of maintenance and improves the reliability and service life of the equipment. The design of the lever assembly, especially the magnetic metal counterweight welded on its lower part, not only increases the stability of the device, but also ensures that the lever assembly can deflect smoothly and reliably when the bottle hits. In addition, the stop pin on the angle code limits the degree of freedom of the lever, further enhancing the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 It is an exploded schematic diagram of the lever assembly of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the lever assembly of the utility model;

[0018] Reference numerals:

[0019] 1. Lever assembly; 11. Lever; 12. Angle code; 13. Pin shaft; 14. Stop pin; 2. Bridge plate; 3. Hemisphere; 4. Magnetic metal counterweight; 5. Inductive sensor; 6. Inductive bracket; 7. First bolt; 8. Second bolt.

[0020] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The same or similar numbers correspond to the same or similar parts. The terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations on this patent. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0022] The technical solution of the present utility model is described in detail below in conjunction with the specific drawings.

[0023] like Figure 1-Figure 3 As shown, a front-end detection device for liquid filling equipment includes a bottle, a lever assembly 1, a bridge plate 2, a hemisphere 3, a magnetic metal counterweight 4, an inductive sensor 5 and an inductive bracket 6; wherein, the bottle moves on the bridge plate 2 under the rotation of the dial, the bottom of the bridge plate 2 is connected to the lever assembly 1 through a first bolt 7, the hemisphere 3 is welded to the upper part of the lever assembly 1, a round hole is provided on the bridge plate 2, and the hemisphere 3 is exposed about 3 mm from the round hole of the bridge plate 2 so as to contact the bottle, when the bottle moves on the bridge plate 2 driven by the dial, the gravity of the bottle itself and the impact force generated during the movement are jointly applied to the hemisphere 3, causing the lever assembly 1 to deflect and displace.

[0024] The magnetic metal counterweight 4 is welded to the lower end of the lever assembly 1, and an inductor bracket 6 is arranged on one side of the lever assembly 1. The inductor bracket 6 is installed at the bottom of the bridge plate 2 by a second bolt 8, and the inductor sensor 5 is installed on the inductor bracket 6. The magnetic metal counterweight 4 is installed adjacent to the inductor sensor 5. When no bottle passes through the bridge plate 2, the position of the magnetic metal counterweight 4 remains unchanged, the magnetic field inside the inductor sensor 5 remains unchanged, and no signal is output. When a bottle passes through the bridge plate 2, it contacts and hits the hemisphere 3, and the lever assembly 1 is deflected and displaced. The magnetic metal counterweight 4 approaches the inductor sensor 5, which changes the magnetic field inside the inductor sensor 5 and generates an induced current. The induced current is amplified, shaped and filtered through the circuit to generate a clear and identifiable output signal. The inductor sensor 5 outputs a signal to the filling equipment controller, and the filling equipment controller receives the signal output by the inductor sensor 5 to control the liquid filling equipment to perform the subsequent filling action.

[0025] The lever assembly 1 includes a lever 11 and an angle code 12. The lever 11 and the angle code 12 are connected via a pin 13. A stop pin 14 is provided on the angle code 12 to limit the freedom of deflection of the lever 11 to prevent the lever 11 from being reset after being pressed down by a rapid impact.

[0026] The following is a detailed description of the operation of the front-end detection device of the above-mentioned liquid filling equipment:

[0027] The dial drives the bottle to move on the conveyor line. The bridge plate is installed between the conveyor line and the turntable of the filling equipment, and is used for the transition of the bottle from the conveyor line to the filling station. The lever assembly is arranged below the bridge plate, and the hemispherical structure on its upper part is exposed about 3mm from the round hole of the bridge plate so as to contact the bottle. When the bottle moves on the bridge plate driven by the dial, it will contact the hemispherical structure of the lever assembly and generate an impact force, causing the lever assembly to deflect and displace. A magnetic metal counterweight is welded to the lower tail of the lever assembly. When the lever assembly deflects and displaces, the magnetic metal counterweight moves into the detection range of the inductive sensor, and the inductive sensor outputs a signal to the filling equipment controller. After receiving the signal, the controller controls the liquid filling equipment to perform the subsequent filling action.

[0028] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A front-end detection device for liquid filling equipment, characterized in that: The invention comprises a bottle, a lever assembly (1), a bridge plate (2), a hemisphere (3), a magnetic metal counterweight (4) and an inductive sensor (5); wherein the bottle moves on the bridge plate (2) when the dial rotates, the bottom of the bridge plate (2) is connected to the lever assembly (1) through a first bolt (7), the hemisphere (3) is welded to the upper part of the lever assembly (1), a round hole is provided on the bridge plate (2), and the hemisphere (3) passes through the round hole of the bridge plate (2); The magnetic metal counterweight (4) is welded to the lower end of the lever assembly (1); an inductor bracket (6) is provided on one side of the lever assembly (1); the inductor bracket (6) is mounted on the bottom of the bridge plate (2) via a second bolt (8); the inductor sensor (5) is mounted on the inductor bracket (6); and the magnetic metal counterweight (4) is installed adjacent to the inductor sensor (5).

2. A front-end detection device for liquid filling equipment according to claim 1, characterized in that: The lever assembly (1) comprises a lever (11) and an angle code (12); the lever (11) and the angle code (12) are connected via a pin shaft (13); a stop pin (14) is provided on the angle code (12) for limiting the degree of freedom of deflection of the lever (11) to prevent the lever (11) from not being reset after being pressed down by a rapid impact.

3. A front-end detection device for liquid filling equipment according to claim 1, characterized in that: The hemisphere (3) is exposed 2-4 mm through the circular hole of the bridge plate (2) so as to contact the bottle.

4. A front-end detection device for liquid filling equipment according to claim 1, characterized in that: The inductive sensor (5) is a metal detection inductive sensor with a detection distance of 5 mm and only identifies magnetic metals.

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