A method and system for detecting the filling height and filling capacity of an empty bottle

Abstract

A method and system for detecting the filling height and filling capacity of an empty bottle; the method comprises the following steps: peeling the reading of an electronic scale; the servo lifting driver drives the bottle mouth positioning plate to move downward to the bottle mouth of the empty bottle, the water filling head and the liquid level sensing probe are both inserted into the empty bottle, and the height position of the bottle mouth positioning plate is recorded as the bottle mouth reference height; selecting a water filling volume detection method and a water filling height detection method; the water filling volume detection method, according to the position of the liquid level sensing probe, the liquid level height corresponding to the actual water filling volume is recorded as the actual water filling height; and it is determined whether the difference between the actual water filling height and the preset water filling height is within a preset range. The water filling height detection method, according to the position of the liquid level sensing probe, the liquid level height corresponding to the actual water filling volume is recorded as the actual water filling height; and it is determined whether the difference between the actual water filling height and the preset water filling height is within a preset range. This solution solves the problems of poor detection accuracy and low detection efficiency in existing manual detection.

Description

Technical Field

[0001] The invention relates to the field of empty bottle detection, and in particular to a method and a system for detecting the filling height and filling capacity of an empty bottle. Background Art

[0002] Before the finished beverage leaves the factory, the filling height and filling capacity of the empty bottle need to be tested to ensure that the filling height does not exceed the bottle mouth and that a certain amount of space is reserved for the empty bottle to provide a buffer. In this way, the two values ​​of filling capacity and filling height are needed to confirm whether the empty bottle is qualified, that is, the filling capacity of the empty bottle at a certain filling height needs to be within a specific range; or the filling height of the empty bottle at a certain filling capacity needs to be within a specific range. The existing detection method is mainly completed manually, which has the problems of high labor cost, poor accuracy and low efficiency. Summary of the invention

[0003] The purpose of the present invention is to propose a method for detecting the filling height and filling capacity of empty bottles, which can detect the actual water filling quality in real time and make the actual water filling volume close to the preset water filling volume. The production quality of the empty bottles can be judged only by whether the difference between the bottle mouth reference height and the water filling height is within the preset range, thereby realizing fully automatic detection of the production quality of the empty bottles.

[0004] The present invention also provides a system for detecting the filling height and filling capacity of an empty bottle, which is used to execute the above-mentioned method for detecting the filling height and filling capacity of an empty bottle.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0007] (1) Tare the reading of the electronic scale;

[0008] (2) The servo lift driver drives the bottle mouth positioning plate to move downward until it contacts the bottle mouth of the empty bottle. The water injection head and the liquid level sensing probe are both inserted into the empty bottle. The height position of the bottle mouth positioning plate is recorded as the bottle mouth reference height.

[0009] Before step (2) is completed, at least one of the following detection modes is selected: a water injection volume detection method and a water injection height detection method;

[0010] The water injection volume detection method comprises:

[0011] (A3) The servo lift driver drives the bottle mouth positioning plate to rise by one unit height, driving the water filling head and the liquid level sensing probe to rise in the empty bottle; the water filling head outputs liquid to the empty bottle until the liquid contacts the liquid level sensing probe and then stops outputting liquid, and the actual position of the liquid level sensing probe is recorded as the actual water filling height;

[0012] (A4) Repeat step (A3) until the actual water filling height approaches the preset water filling height and then stop executing; obtain the actual water filling mass on the electronic scale and convert it into the actual water filling volume;

[0013] (A5) determining whether the difference between the actual water injection volume and the preset water injection volume is within a preset range, if so, it is qualified, otherwise, it is unqualified;

[0014] The water injection height detection method comprises:

[0015] (B3) The servo lift driver drives the bottle mouth positioning plate to rise by one unit height, driving the water filling head and the liquid level sensing probe to rise in the empty bottle; the water filling head outputs a fixed amount of liquid to the empty bottle, and obtains the actual water filling mass on the electronic scale, which is then converted into the actual water filling volume;

[0016] (B4) Repeat step (B3) until the actual water injection volume approaches the preset water injection volume and then stop executing; record the liquid level height corresponding to the actual water injection volume as the actual water injection height according to the position of the liquid level sensing probe;

[0017] (B5) Determine whether the difference between the actual water filling height and the preset water filling height is within a preset range, if so, it is qualified, otherwise, it is unqualified.

[0018] Optimally, when the water injection volume detection method is selected, in the step (A4), the output flow rate of the water injection head when the step (A3) is performed for the next time is smaller than the output flow rate when the step (A3) is performed for the previous time;

[0019] When the water injection height detection method is selected, in the step (B4), the output flow rate of the water injection head when the step (B3) is performed the next time is smaller than the output flow rate when the step (B3) is performed the previous time;

[0020] Preferably, in the step (B4), the step of determining the actual water filling height includes: the servo lifting driver drives the bottle mouth positioning plate to rise to a certain height, driving the liquid level sensing probe to separate from the liquid surface, and then the servo lifting driver drives the bottle mouth positioning plate to descend, so that the liquid level sensing probe descends to just contact the liquid surface, and the height position of the sensing end of the liquid level sensing probe is recorded as the actual water filling height.

[0021] Preferably, in step (B4), the step of determining the actual water injection height includes:

[0022] (B4-1): The liquid level sensing probe is separated from the liquid surface at the beginning, and the servo lifting driver drives the bottle mouth positioning plate to descend at a first acceleration, so that the liquid level sensing probe descends until it contacts the liquid surface, and obtains the first water injection height when it contacts the liquid surface at the first acceleration; the servo lifting driver drives the bottle mouth positioning plate to rise, so that the liquid level sensing probe is separated from the liquid surface;

[0023] (B4-2): A second acceleration is preset according to the first water filling height, so that the second acceleration is designed to be smaller than the first acceleration; the servo lifting driver then drives the bottle mouth positioning plate to descend at the second acceleration, so that the liquid level sensing probe descends to just touch the liquid surface, and the second water filling height that touches the liquid surface when the second acceleration is obtained;

[0024] In the step (B5), it is determined whether the difference between the second water injection height and the preset water injection height is within a preset range.

[0025] It can be optimized that in the step (2), after the bottle mouth positioning plate descends at a specific speed to abut against the bottle mouth of the empty bottle, it is determined whether the empty bottle is deformed, and if so, it is determined to be unqualified.

[0026] Preferably, in step (1), a centering driver is used to center the empty bottle; an L-shaped groove is provided at the output end of the centering driver, and the L-shaped grooves are arranged in pairs; the centering driver drives the two L-shaped grooves to move horizontally toward each other, and the two L-shaped grooves form a four-sided groove for accommodating the empty bottle when they are close to each other, so that the bottle mouth of the empty bottle is vertically aligned with the water filling head and the liquid level sensing probe.

[0027] It can be optimized that when selecting the detection mode before the end of step (2), it is also selected whether to perform the whole bottle capacity detection step after the water filling volume detection method or the water filling height detection method;

[0028] The whole bottle capacity detection step includes: a servo lifting driver drives the bottle mouth positioning plate to rise, so that the liquid level sensing probe is separated from the liquid surface, and liquid is continuously added to the bottle through the water injection head until the liquid contacts the sensing end of the liquid level sensing probe and then the liquid output is stopped, and the execution is repeated; the execution is stopped until the sensing end of the liquid level sensing probe moves upward away from the bottle mouth reference height, and the water injection head stops injecting water; and the mass of the electronic scale is obtained and used as the capacity of the empty bottle after converting the volume.

[0029] In an optimized manner, after the step of detecting the capacity of the entire bottle is performed, the water filling head moves downward to extend into the bottle and sucks away the liquid so that the liquid level is lower than the bottle mouth.

[0030] A system for detecting the filling height and filling capacity of an empty bottle, used for executing the above-mentioned method for detecting the filling height and filling capacity of an empty bottle, comprising: an electronic scale, a bottle mouth positioning plate, a water filling head, a liquid level sensing probe and a servo lifting driver;

[0031] The electronic scale is used to place an empty bottle and measure the mass of the liquid in the empty bottle;

[0032] The water filling head and the liquid level sensing probe are respectively installed on the bottle mouth positioning plate, and the output end of the servo lifting driver is connected to the bottle mouth positioning plate, which is used to drive the bottle mouth positioning plate to move up and down, drive the bottle mouth positioning plate to move up and down, and make the water filling head and the liquid level sensing probe rise and fall on the empty bottle, and the liquid level sensing probe is respectively communicated with the water filling head and the servo lifting driver.

[0033] Optimally, it also includes: a centering drive;

[0034] An L-shaped groove is provided at the output end of the centering driver; the L-shaped grooves are arranged in pairs, and the centering driver is used to drive the L-shaped grooves to move horizontally, so that the two L-shaped grooves move toward each other, and the L-shaped grooves form a four-sided groove for accommodating empty bottles when they are close to each other, and the four-sided grooves are vertically aligned with the water filling head and the liquid level sensing probe.

[0035] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0036] The present invention provides a method for detecting the filling height and filling capacity of empty bottles, which can detect the actual water filling quality in real time and make the actual water filling volume close to the preset water filling volume. The production quality of the empty bottles can be judged only by whether the difference between the bottle mouth reference height and the water filling height is within the preset range, thereby realizing fully automatic detection of the production quality of empty bottles and solving the problems of poor detection accuracy and low detection efficiency in existing manual detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of one embodiment of a system for detecting the filling height and filling capacity of an empty bottle;

[0038] Figure 2 yes Figure 1 A partial enlarged view of part A in the middle.

[0039] in:

[0040] Electronic scale 1, bottle mouth positioning plate 2, water injection head 3, liquid level sensing probe 4, servo lifting driver 5; centering driver 6; empty bottle 7; L-shaped groove 61; bottle mouth 71. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, which are used to distinguish and describe the features, without distinction of order or importance. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0043] like Figure 1-2 , a method for detecting the filling height and filling capacity of an empty bottle, comprising the following steps:

[0044] (1) Tare the reading of the electronic scale 1;

[0045] After the electronic scale 1 is peeled, the reading of the electronic scale 1 is 0. When liquid is subsequently added to the empty bottle 7, the electronic scale 1 will detect and display the mass of the added liquid in real time;

[0046] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0047] The servo lifting driver 5 drives the bottle mouth positioning plate 2 to move downward until the bottle mouth positioning plate 2 is against the bottle mouth 71 of the empty bottle 7, and the bottle mouth positioning plate 2 will also drive the water injection head 3 and the liquid level sensing probe 4 connected thereto to extend into the empty bottle 7 during the descent process; at this time, the height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height, and the lifting distance of the output end of the servo lifting driver 5 can be obtained by the device itself, so the position of the bottle mouth positioning plate 2 can be a determined value, or the height of the empty bottle 7 can be calculated by subtracting the height of the electronic scale 1 from the bottle mouth reference height, so that the lifting speed of the bottle mouth positioning plate 2, the flow rate of the water injection head 3 and other references can be designed according to the height of the empty bottle 7 in subsequent steps;

[0048] Before step (2) is completed, at least one of the following detection modes is selected: a water injection volume detection method and a water injection height detection method;

[0049] The water injection volume detection method comprises:

[0050] (A3) The servo lift driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, driving the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs liquid to the empty bottle 7 until the liquid contacts the liquid level sensing probe 4 and then stops outputting liquid, and the actual position of the liquid level sensing probe 4 is recorded as the actual water filling height;

[0051] After the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise by a unit height, the water injection head 3 and the liquid level sensing probe 4 rise to the unit height. At this time, the water injection head 3 outputs liquid to the empty bottle 7. When the liquid level rises to the sensing end of the liquid level sensing probe 4, the liquid level sensing probe 4 controls the water injection head 3 to stop outputting liquid. At this time, the electronic scale 1 measures the added mass of the liquid, that is, the actual water injection mass; the density of the mass is divided by the density of the liquid to obtain the volume of the liquid, so the actual water injection mass can be converted into the actual water injection volume;

[0052] (A4) Repeat step (A3) until the actual water filling height approaches the preset water filling height and then stop executing; obtain the actual water filling mass of the electronic scale 1 and convert it into the actual water filling volume;

[0053] Repeat the above step (A3), the system pre-sets a preset water filling height, when the actual water filling height is close to the preset water filling height, it means that liquid close to the preset water filling height has been added to the bottle, and it is necessary to further determine whether the difference between the actual water filling volume and the preset water filling volume is within the preset range; and this step is repeated for multiple times to ensure that the actual water filling height can be infinitely close to the preset water filling height, reducing the difference between the actual water filling height and the preset water filling height;

[0054] (A5) determining whether the difference between the actual water injection volume and the preset water injection volume is within a preset range, if so, it is qualified, otherwise, it is unqualified;

[0055] The preset water filling volume is preset in the system. The electronic scale 1 can directly obtain the actual water filling mass and convert it into the actual water filling volume. That is, when the empty bottle 7 is added with water of a preset water filling height, the difference between the actual water filling volume and the preset water filling volume can be compared, and it can be determined whether the difference is within the preset range, thereby determining whether the quality of the empty bottle 7 is qualified.

[0056] The water injection height detection method comprises:

[0057] (B3) The servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, and drives the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs a fixed amount of liquid to the empty bottle 7, and obtains the actual water filling mass of the electronic scale 1, and then converts it into the actual water filling volume;

[0058] After the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise by a unit height, the water injection head 3 and the liquid level sensing probe 4 rise to the unit height. At this time, the water injection head 3 outputs liquid to the empty bottle 7. When the liquid level rises to the sensing end of the liquid level sensing probe 4, the liquid level sensing probe 4 controls the water injection head 3 to stop outputting liquid. At this time, the electronic scale 1 measures the added mass of the liquid, that is, the actual water injection mass; the density of the mass is divided by the density of the liquid to obtain the volume of the liquid, so the actual water injection mass can be converted into the actual water injection volume;

[0059] (B4) Repeat step (B3) until the actual water injection volume approaches the preset water injection volume and then stop executing; record the liquid level height corresponding to the actual water injection volume as the actual water injection height according to the position of the liquid level sensing probe 4;

[0060] Repeat the above step (B3). When the actual water filling volume is close to the preset water filling volume, it means that the preset water filling volume of liquid has been added to the bottle. It is necessary to further determine whether the distance between the water filling height of the bottle and the bottle mouth 71 is the standard distance. This step is repeated for multiple times to ensure that the actual water filling volume can be infinitely close to the preset water filling volume, thereby reducing the difference between the actual water filling volume and the preset water filling volume.

[0061] (B5) Determine whether the difference between the actual water filling height and the preset water filling height is within a preset range, if so, it is qualified, otherwise, it is unqualified.

[0062] The preset water filling height is preset in the system, and the liquid level sensing probe 4 directly obtains the actual water filling height. That is, when the empty bottle 7 is added with water of the preset water filling volume, the difference between the actual water filling height and the preset water filling height can be used to determine whether the difference is within the preset range, thereby determining whether the quality of the empty bottle 7 is qualified.

[0063] The present solution provides a method for detecting the filling height and filling capacity of empty bottles, which can detect the actual water filling quality in real time and make the actual water filling volume close to the preset water filling volume. The production quality of the empty bottles 7 can be judged only by whether the difference between the bottle mouth reference height and the water filling height is within the preset range, thereby realizing fully automatic detection of the production quality of the empty bottles 7 and solving the problems of poor detection accuracy and low detection efficiency in existing manual detection.

[0064] Optimally, when the water injection volume detection method is selected, in the step (A4), the output flow rate of the water injection head 3 when the step (A3) is performed for the next time is smaller than the output flow rate when the step (A3) is performed for the previous time;

[0065] When the water injection height detection method is selected, in the step (B4), the output flow rate of the water injection head 3 when the step (B3) is performed the next time is smaller than the output flow rate when the step (B3) is performed the previous time;

[0066] The present solution can gradually limit the flow rate of liquid output by the water filling head 3 each time in the repeated steps of step (A4) or step (B4). For example, when executing step (A3) or (B3) for the first time, the maximum flow rate is used to quickly fill the empty bottle 7, which is rough water filling; and when executing step (A3) or (B3) for the second time, the output flow rate of the liquid is reduced, which is fine water filling. In this way, the speed at which the liquid finally fills the empty bottle 7 is slowed down, avoiding the subsequent liquid level rising too fast and exceeding the bottle mouth 71, making the liquid level control more stable, thereby ensuring that the actual water injection volume is closest to the preset water injection volume, or ensuring that the actual water injection height is closest to the preset water injection height.

[0067] Preferably, in the step (B4), the step of determining the actual water filling height includes: the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise to a certain height, driving the liquid level sensing probe 4 to separate from the liquid surface, and then the servo lifting driver 5 drives the bottle mouth positioning plate 2 to descend, so that the liquid level sensing probe 4 descends to just contact the liquid surface, and the height position of the sensing end of the liquid level sensing probe 4 is recorded as the actual water filling height.

[0068] This scheme preferably uses the reciprocating motion of the liquid level sensing probe 4 to determine the water filling height; the servo lifting driver 5 can first move the bottle mouth positioning plate 2 upward to completely separate the liquid level sensing probe 4 from the liquid surface; the servo lifting driver 5 then drives the bottle mouth positioning plate 2 to descend to make the liquid level sensing probe 4 contact the liquid surface again. Since the liquid level sensing probe 4 is controlled in parameters such as speed and acceleration when it descends to contact the liquid surface again, its state when contacting the liquid surface is controllable, and it can contact the liquid surface in the best state, thereby improving the detection accuracy of the water filling height and thus improving the quality detection accuracy of the empty bottle 7.

[0069] Preferably, in step (B4), the step of determining the actual water injection height includes:

[0070] (B4-1): The liquid level sensing probe 4 is separated from the liquid surface at the beginning, and the servo lifting driver drives the bottle mouth positioning plate 2 to descend at a first acceleration, so that the liquid level sensing probe 4 descends to contact the liquid surface, and obtains the first water injection height when contacting the liquid surface at the first acceleration; the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise, so that the liquid level sensing probe 4 is separated from the liquid surface;

[0071] (B4-2): The second acceleration is preset according to the first water filling height, so that the second acceleration is designed to be smaller than the first acceleration; the servo lifting driver 5 then drives the bottle mouth positioning plate 2 to descend at the second acceleration, so that the liquid level sensing probe 4 descends to just touch the liquid surface, and obtains the second water filling height that touches the liquid surface when the second acceleration is obtained;

[0072] In the step (B5), it is determined whether the difference between the second water injection height and the preset water injection height is within a preset range.

[0073] In the step of determining the actual water filling height, the present scheme preferably performs a second confirmation of the actual water filling height; specifically, the servo lifting driver 5 first drives the bottle mouth positioning plate 2 to descend at a first acceleration, so that the liquid level sensing probe 4 descends until it just contacts the liquid surface. Since the liquid level sensing probe 4 descends at the first acceleration, the first acceleration is uncertain, and thus the first acceleration may cause the descent to be too fast, thereby causing the detection end of the liquid level sensing probe 4 to fail to just contact the liquid surface. If this height position is directly used as the actual water filling height, inaccurate data may occur. In this regard, the liquid level sensing probe 4 has already obtained the first acceleration when it contacts the liquid. The first water filling height when the liquid surface is reached; therefore, when the water filling height is subsequently confirmed for the second time, the second acceleration can be designed based on the first water filling height, and the change of the second acceleration can refer to the first water filling height. For example, the second acceleration can be a constant value, or can be changed according to a specific algorithm. In this way, the liquid level sensing probe 4 can eventually be lowered to just touch the liquid surface, thereby obtaining the second water filling height that touches the liquid surface when the second acceleration is reached. The second water filling height is designed based on the first water filling height, and thus the result of the second water filling height is closer to the actual value, so that directly judging the difference between the second water filling height and the preset water filling height can make the detection result more accurate.

[0074] It can be optimized that in the step (2), after the bottle mouth positioning plate 2 descends at a specific speed to abut against the bottle mouth 71 of the empty bottle 7, it is determined whether the empty bottle 7 is deformed, and if so, it is determined to be unqualified.

[0075] In addition to determining the reference height of the bottle mouth, the bottle mouth positioning plate 2 of the present solution can also press down against the bottle mouth 71 of the empty bottle 7, thereby pressing the empty bottle 7 downward; here, the bottle mouth positioning plate 2 descends at a specific speed, which is adjusted and can be associated with the pressure of the bottle mouth positioning plate 2; if the empty bottle 7 is deformed, that is, the empty bottle 7 cannot withstand the preset pressure, and thus cannot pass the test. When the bottle mouth positioning plate 2 is pressed downward, the empty bottle 7 has been deformed, and the result of the reference height of the bottle mouth is inaccurate, which can be eliminated in time.

[0076] Whether the empty bottle 7 is deformed can be determined manually or by an industrial camera.

[0077] Preferably, in the step (1), a centering driver 6 is used to center the empty bottle 7; an L-shaped groove 61 is provided at the output end of the centering driver 6, and the L-shaped grooves 61 are arranged in pairs; the centering driver 6 drives the two L-shaped grooves 61 to move horizontally toward each other, and the two L-shaped grooves 61 form a four-sided groove for accommodating the empty bottle 7 when they are close to each other, so that the bottle mouth 71 of the empty bottle 7 is vertically aligned with the water filling head 3 and the liquid level sensing probe 4.

[0078] In order to reduce the difficulty of centering the empty bottle 7, the present solution preferably uses a centering driver 6 to center the empty bottle 7, so that the bottle mouth 71 of the empty bottle 7 is quickly aligned with the bottle mouth positioning plate 2 and its water injection head 3 and the liquid level sensing probe 4; specifically, the L-shaped grooves 61 are arranged in pairs, for example, they can be symmetrically arranged on both sides of the electronic scale 1. When centering is required, the centering driver 6 can be started, the output ends of the centering driver 6 move toward each other, and the L-shaped grooves 61 at the output ends move and gradually approach each other; the L-shaped grooves 61 are L-shaped structures, and the L-shaped grooves 61 are L-shaped structures. It is formed by the intersection of plates extending in two directions, so it is only necessary to place the empty bottle 7 roughly in one of the L-shaped grooves 61, and the movement of the L-shaped groove 61 will push the empty bottle 7 to move; and the two L-shaped grooves 61 are close to each other at the end point of the movement to form a four-sided groove, and the four-sided grooves limit the position of the empty bottle 7; the four-sided groove has four sides, which are respectively located on different surfaces of the empty bottle 7, so the four sides can limit the position of the empty bottle 7; in this way, when the L-shaped grooves 61 are close, the empty bottle 7 can reach the detection device, completing the centering process.

[0079] The centering driver 6 is a well-known mechanism with a function of driving horizontal movement, such as a pneumatic cylinder, an oil cylinder, a mobile trolley, a manipulator, etc., as long as it can drive the L-shaped groove 61 to move horizontally.

[0080] It can be optimized that when selecting the detection mode before the end of step (2), it is also selected whether to perform the whole bottle capacity detection step after the water filling volume detection method or the water filling height detection method;

[0081] The whole bottle capacity detection step includes: the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise, so that the liquid level sensing probe 4 is separated from the liquid surface, and the liquid is continuously added to the bottle through the water injection head 3 until the liquid contacts the sensing end of the liquid level sensing probe 4 and then the liquid output is stopped, and the execution is repeated; the execution is stopped until the sensing end of the liquid level sensing probe 4 moves upward away from the bottle mouth reference height, and the water injection head 3 stops injecting water; the mass of the electronic scale 1 is obtained, and the converted volume is used as the capacity of the empty bottle.

[0082] After detecting the actual water filling height or the actual water filling volume, the present scheme can perform the whole bottle capacity detection step as needed; step (2) will place the bottle mouth positioning plate 2 against the bottle mouth 71 of the empty bottle 7, and at this time the height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height, and the lifting distance of the output end of the servo lifting driver 5 can be obtained by the device itself, so the position of the bottle mouth positioning plate 2 can be a determined value; at this time, the liquid level sensing probe 4 can be positioned based on the bottle mouth reference height obtained at the beginning, so that the liquid level sensing probe is positioned to the bottle mouth 71 after multi-stage height adjustment, and each lifting and lowering of the liquid level sensing probe 4 will make the liquid surface approach the bottle mouth 71, so that after the sensing end of the liquid level sensing probe 4 moves upward away from the bottle mouth reference height, the liquid surface will eventually be positioned to the bottle mouth 71; at this time, it is only necessary to directly read the mass of the electronic scale 1 at this time, and then calculate the capacity of the bottle after conversion.

[0083] Among them, after the sensing end of the liquid level sensing probe 4 leaves the bottle mouth reference height upward, the water injection head 3 stops injecting water. The stopping of water injection here can be that the water injection head 3 stops injecting water immediately after the liquid level sensing probe 4 leaves the bottle mouth reference height; or it can be that after the liquid level sensing probe 4 leaves the bottle mouth reference height, the water injection head 3 injects a small amount of water to fill the small liquid level difference that occurs when the liquid level sensing probe 4 leaves the liquid surface, and then stops injecting water.

[0084] It can be optimized that after the whole bottle capacity detection step is performed, the water filling head 3 moves downward to extend into the bottle and sucks away the liquid so that the liquid level is lower than the bottle mouth 71.

[0085] After the whole bottle capacity detection step is completed, the liquid can be sucked away by reverse suction of the water injection head 3, which not only recovers the liquid when measuring the whole bottle, but also prevents the liquid from spilling out of the bottle mouth 71 when taking the bottle out of the electronic scale 1.

[0086] A system for detecting the filling height and filling capacity of an empty bottle, used for executing the above-mentioned method for detecting the filling height and filling capacity of an empty bottle, comprising: an electronic scale 1, a bottle mouth positioning plate 2, a water filling head 3, a liquid level sensing probe 4 and a servo lifting driver 5;

[0087] The electronic scale 1 is used to place an empty bottle 7 and measure the mass of the liquid in the empty bottle 7;

[0088] The water filling head 3 and the liquid level sensing probe 4 are respectively installed on the bottle mouth positioning plate 2, and the output end of the servo lifting driver 5 is connected to the bottle mouth positioning plate 2, which is used to drive the bottle mouth positioning plate 2 to move up and down, drive the bottle mouth positioning plate 2 to move up and down, and make the water filling head 3 and the liquid level sensing probe 4 move up and down on the empty bottle 7, and the liquid level sensing probe 4 is respectively communicated with the water filling head 3 and the servo lifting driver 5.

[0089] It can be optimized to further include: a centering driver 6;

[0090] An L-shaped groove 61 is provided at the output end of the centering driver 6; the L-shaped grooves 61 are arranged in pairs, and the centering driver 6 is used to drive the L-shaped grooves 61 to move horizontally, so that the two L-shaped grooves 61 move toward each other, and the L-shaped grooves 61 form a four-sided groove for accommodating empty bottles 7 when they are close to each other, and the four-sided grooves are vertically aligned with the water filling head 3 and the liquid level sensing probe 4.

[0091] Embodiment A1:

[0092] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0093] (1) Tare the reading of the electronic scale 1;

[0094] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0095] Before step (1), a water injection volume detection method is selected, which includes:

[0096] (A3) The servo lift driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, driving the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs liquid to the empty bottle 7 until the liquid contacts the liquid level sensing probe 4 and then stops outputting liquid, and the actual position of the liquid level sensing probe 4 is recorded as the actual water filling height;

[0097] (A4) Repeat step (A3) until the actual water filling height approaches the preset water filling height and then stop executing; obtain the actual water filling mass of the electronic scale 1 and convert it into the actual water filling volume;

[0098] (A5) Determine whether the difference between the actual water injection volume and the preset water injection volume is within a preset range. If so, it is qualified; otherwise, it is unqualified.

[0099] Embodiment A2:

[0100] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0101] (1) Tare the reading of the electronic scale 1;

[0102] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0103] Before step (1), a water injection volume detection method is selected, which includes:

[0104] (A3) The servo lift driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, driving the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs liquid to the empty bottle 7 until the liquid contacts the liquid level sensing probe 4 and then stops outputting liquid, and the actual position of the liquid level sensing probe 4 is recorded as the actual water filling height;

[0105] (A4) Repeat step (A3) twice, wherein the output flow rate of the water injection head 3 during the latter step (A3) is less than the output flow rate during the previous step (A3); the step is stopped until the actual water injection height approaches the preset water injection height; the actual water injection mass of the electronic scale 1 is obtained and converted into the actual water injection volume;

[0106] (A5) Determine whether the difference between the actual water injection volume and the preset water injection volume is within a preset range. If so, it is qualified; otherwise, it is unqualified.

[0107] Embodiment A3:

[0108] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0109] (1) Tare the reading of the electronic scale 1;

[0110] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height. The industrial camera is used to determine whether the empty bottle 7 is deformed. If so, it is determined to be unqualified.

[0111] Before step (1), a water injection volume detection method is selected, which includes:

[0112] (A3) The servo lift driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, driving the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs liquid to the empty bottle 7 until the liquid contacts the liquid level sensing probe 4 and then stops outputting liquid, and the actual position of the liquid level sensing probe 4 is recorded as the actual water filling height;

[0113] (A4) Repeat step (A3) twice, wherein the output flow rate of the water injection head 3 during the latter step (A3) is less than the output flow rate during the previous step (A3); the step is stopped until the actual water injection height approaches the preset water injection height; the actual water injection mass of the electronic scale 1 is obtained and converted into the actual water injection volume;

[0114] (A5) Determine whether the difference between the actual water injection volume and the preset water injection volume is within a preset range. If so, it is qualified; otherwise, it is unqualified.

[0115] Embodiment A4:

[0116] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0117] (1) Using a centering driver 6 to center the empty bottle 7; an L-shaped groove 61 is provided at the output end of the centering driver 6, and the L-shaped grooves 61 are arranged in pairs; the centering driver 6 drives the two L-shaped grooves 61 to move horizontally toward each other, and the two L-shaped grooves 61 form a four-sided groove for accommodating the empty bottle 7 when they are close to each other, and the bottle mouth 71 of the empty bottle 7 is vertically aligned with the water injection head 3 and the liquid level sensing probe 4; the reading of the electronic scale 1 is peeled;

[0118] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0119] Before step (1), a water injection volume detection method is selected, which includes:

[0120] (A3) The servo lift driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, driving the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs liquid to the empty bottle 7 until the liquid contacts the liquid level sensing probe 4 and then stops outputting liquid, and the actual position of the liquid level sensing probe 4 is recorded as the actual water filling height;

[0121] (A4) Repeat step (A3) twice, wherein the output flow rate of the water injection head 3 during the latter step (A3) is less than the output flow rate during the previous step (A3); the step is stopped until the actual water injection height approaches the preset water injection height; the actual water injection mass of the electronic scale 1 is obtained and converted into the actual water injection volume;

[0122] (A5) Determine whether the difference between the actual water injection volume and the preset water injection volume is within a preset range. If so, it is qualified; otherwise, it is unqualified.

[0123] Embodiment A5:

[0124] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0125] (1) Using a centering driver 6 to center the empty bottle 7; an L-shaped groove 61 is provided at the output end of the centering driver 6, and the L-shaped grooves 61 are arranged in pairs; the centering driver 6 drives the two L-shaped grooves 61 to move horizontally toward each other, and the two L-shaped grooves 61 form a four-sided groove for accommodating the empty bottle 7 when they are close to each other, and the bottle mouth 71 of the empty bottle 7 is vertically aligned with the water injection head 3 and the liquid level sensing probe 4; the reading of the electronic scale 1 is peeled;

[0126] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0127] Before step (1), select the water filling volume detection method and select the whole bottle capacity detection step;

[0128] Water injection volume detection methods include:

[0129] (A3) The servo lift driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, driving the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs liquid to the empty bottle 7 until the liquid contacts the liquid level sensing probe 4 and then stops outputting liquid, and the actual position of the liquid level sensing probe 4 is recorded as the actual water filling height;

[0130] (A4) Repeat step (A3) twice, wherein the output flow rate of the water injection head 3 during the latter step (A3) is less than the output flow rate during the previous step (A3); the step is stopped until the actual water injection height approaches the preset water injection height; the actual water injection mass of the electronic scale 1 is obtained and converted into the actual water injection volume;

[0131] (A5) determining whether the difference between the actual water injection volume and the preset water injection volume is within a preset range, if so, it is qualified, otherwise, it is unqualified;

[0132] After step (A5), a whole bottle capacity detection step is performed, including: the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise, so that the liquid level sensing probe 4 is separated from the liquid surface, and liquid is continuously added to the bottle through the water injection head 3 until the liquid contacts the sensing end of the liquid level sensing probe 4 and then the liquid output is stopped, and the step is repeated; the step is stopped until the sensing end of the liquid level sensing probe 4 moves upward away from the bottle mouth reference height, and the water injection head 3 stops injecting water; the mass of the electronic scale 1 is obtained, and the converted volume is used as the capacity of the empty bottle.

[0133] The water injection head 3 moves downward to extend into the bottle and absorbs the liquid so that the liquid level is lower than the bottle mouth 71.

[0134] Embodiment B1:

[0135] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0136] (1) Tare the reading of the electronic scale 1;

[0137] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0138] Before step (1), a water injection height detection method is selected, which includes:

[0139] (B3) The servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, and drives the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs a fixed amount of liquid to the empty bottle 7, and obtains the actual water filling mass of the electronic scale 1, and then converts it into the actual water filling volume;

[0140] (B4) Repeat step (B3) until the actual water injection volume approaches the preset water injection volume and then stop executing; record the liquid level height corresponding to the actual water injection volume as the actual water injection height according to the position of the liquid level sensing probe 4; directly measure it with a ruler;

[0141] (B5) Determine whether the difference between the actual water filling height and the preset water filling height is within a preset range, if so, it is qualified, otherwise, it is unqualified.

[0142] Embodiment B2:

[0143] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0144] (1) Tare the reading of the electronic scale 1;

[0145] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0146] Before step (1), a water injection height detection method is selected, which includes:

[0147] (B3) The servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, and drives the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs a fixed amount of liquid to the empty bottle 7, and obtains the actual water filling mass of the electronic scale 1, and then converts it into the actual water filling volume;

[0148] (B4) Repeat step (B3) until the actual water injection volume approaches the preset water injection volume and then stop executing; record the liquid level height corresponding to the actual water injection volume as the actual water injection height according to the position of the liquid level sensing probe 4; directly measure it with a ruler;

[0149] (B5) Determine whether the difference between the actual water filling height and the preset water filling height is within a preset range, if so, it is qualified, otherwise, it is unqualified.

[0150] Embodiment B3:

[0151] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0152] (1) Tare the reading of the electronic scale 1;

[0153] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height. The industrial camera is used to determine whether the empty bottle 7 is deformed. If so, it is determined to be unqualified.

[0154] Before step (1), a water injection height detection method is selected, which includes:

[0155] (B3) The servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, and drives the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs a fixed amount of liquid to the empty bottle 7, and obtains the actual water filling mass of the electronic scale 1, and then converts it into the actual water filling volume;

[0156] (B4) Repeat step (B3) until the actual water injection volume approaches the preset water injection volume and then stop executing; record the liquid level height corresponding to the actual water injection volume as the actual water injection height according to the position of the liquid level sensing probe 4; the step of determining the actual water injection height includes: the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise to a certain height, driving the liquid level sensing probe 4 to separate from the liquid surface, and then the servo lifting driver 5 drives the bottle mouth positioning plate 2 to descend, so that the liquid level sensing probe 4 descends to just contact the liquid surface, and the height position of the sensing end of the liquid level sensing probe 4 is recorded as the actual water injection height;

[0157] (B5) Determine whether the difference between the actual water filling height and the preset water filling height is within a preset range, if so, it is qualified, otherwise, it is unqualified.

[0158] Embodiment B4:

[0159] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0160] (1) Using a centering driver 6 to center the empty bottle 7; an L-shaped groove 61 is provided at the output end of the centering driver 6, and the L-shaped grooves 61 are arranged in pairs; the centering driver 6 drives the two L-shaped grooves 61 to move horizontally toward each other, and the two L-shaped grooves 61 form a four-sided groove for accommodating the empty bottle 7 when they are close to each other, and the bottle mouth 71 of the empty bottle 7 is vertically aligned with the water injection head 3 and the liquid level sensing probe 4; the reading of the electronic scale 1 is peeled;

[0161] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0162] Before step (1), a water injection height detection method is selected, which includes:

[0163] (B3) The servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, and drives the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs a fixed amount of liquid to the empty bottle 7, and obtains the actual water filling mass of the electronic scale 1, and then converts it into the actual water filling volume;

[0164] (B4) Repeat step (B3) until the actual water injection volume approaches the preset water injection volume and then stop executing; record the liquid level height corresponding to the actual water injection volume as the actual water injection height according to the position of the liquid level sensing probe 4; the step of determining the actual water injection height includes:

[0165] (B4-1): The liquid level sensing probe 4 is separated from the liquid surface at the beginning, and the servo lifting driver drives the bottle mouth positioning plate 2 to descend at a first acceleration, so that the liquid level sensing probe 4 descends to contact the liquid surface, and obtains the first water injection height when contacting the liquid surface at the first acceleration; the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise, so that the liquid level sensing probe 4 is separated from the liquid surface;

[0166] (B4-2): The second acceleration is preset according to the first water filling height, so that the second acceleration is designed to be smaller than the first acceleration; the servo lifting driver 5 then drives the bottle mouth positioning plate 2 to descend at the second acceleration, so that the liquid level sensing probe 4 descends to just touch the liquid surface, and obtains the second water filling height that touches the liquid surface when the second acceleration is obtained;

[0167] (B5) determining whether the difference between the second water injection height and the preset water injection height is within a preset range, if so, it is qualified, otherwise, it is unqualified.

[0168] Embodiment B5:

[0169] A method for detecting the filling height and filling capacity of an empty bottle comprises the following steps:

[0170] (1) Using a centering driver 6 to center the empty bottle 7; an L-shaped groove 61 is provided at the output end of the centering driver 6, and the L-shaped grooves 61 are arranged in pairs; the centering driver 6 drives the two L-shaped grooves 61 to move horizontally toward each other, and the two L-shaped grooves 61 form a four-sided groove for accommodating the empty bottle 7 when they are close to each other, and the bottle mouth 71 of the empty bottle 7 is vertically aligned with the water injection head 3 and the liquid level sensing probe 4; the reading of the electronic scale 1 is peeled;

[0171] (2) The servo lift driver 5 drives the bottle mouth positioning plate 2 to move downward until it contacts the bottle mouth 71 of the empty bottle 7. The water injection head 3 and the liquid level sensing probe 4 are both inserted into the empty bottle 7. The height position of the bottle mouth positioning plate 2 is recorded as the bottle mouth reference height.

[0172] Select the water filling height detection method before step (1) and select the full bottle capacity detection step

[0173] Water injection height detection methods include:

[0174] (B3) The servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise by one unit height, and drives the water filling head 3 and the liquid level sensing probe 4 to rise in the empty bottle 7; the water filling head 3 outputs a fixed amount of liquid to the empty bottle 7, and obtains the actual water filling mass of the electronic scale 1, and then converts it into the actual water filling volume;

[0175] (B4) Repeat step (B3) until the actual water injection volume approaches the preset water injection volume and then stop executing; record the liquid level height corresponding to the actual water injection volume as the actual water injection height according to the position of the liquid level sensing probe 4; the step of determining the actual water injection height includes:

[0176] (B4-1): The liquid level sensing probe 4 is separated from the liquid surface at the beginning, and the servo lifting driver drives the bottle mouth positioning plate 2 to descend at a first acceleration, so that the liquid level sensing probe 4 descends to contact the liquid surface, and obtains the first water injection height when contacting the liquid surface at the first acceleration; the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise, so that the liquid level sensing probe 4 is separated from the liquid surface;

[0177] (B4-2): The second acceleration is preset according to the first water filling height, so that the second acceleration is designed to be smaller than the first acceleration; the servo lifting driver 5 then drives the bottle mouth positioning plate 2 to descend at the second acceleration, so that the liquid level sensing probe 4 descends to just touch the liquid surface, and obtains the second water filling height that touches the liquid surface when the second acceleration is obtained;

[0178] (B5) determining whether the difference between the second water injection height and the preset water injection height is within a preset range, if so, it is qualified, otherwise, it is unqualified.

[0179] After step (B5), the whole bottle capacity detection step is performed, including: the servo lifting driver 5 drives the bottle mouth positioning plate 2 to rise, so that the liquid level sensing probe 4 is separated from the liquid surface, and liquid is continued to be added to the bottle through the water injection head 3 until the liquid contacts the sensing end of the liquid level sensing probe 4 and then the liquid output is stopped, and the execution is repeated; the execution is stopped until the sensing end of the liquid level sensing probe 4 moves upward away from the bottle mouth reference height, and the water injection head 3 stops injecting water; the mass of the electronic scale 1 is obtained, and after converting the volume, it is used as the capacity of the empty bottle.

[0180] The water injection head 3 moves downward to extend into the bottle and absorbs the liquid so that the liquid level is lower than the bottle mouth 71.

[0181] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A method for detecting the filling height and filling capacity of an empty bottle, characterized in that: The following steps are involved: (1) Tare the reading of the electronic scale; (2) The servo lift driver drives the bottle mouth positioning plate to move downward until it contacts the bottle mouth of the empty bottle. The water injection head and the liquid level sensing probe are both inserted into the empty bottle. The height position of the bottle mouth positioning plate is recorded as the bottle mouth reference height. Before step (2) is completed, at least one of the following detection modes is selected: a water injection volume detection method and a water injection height detection method; The water injection volume detection method comprises: (A3) The servo lift driver drives the bottle mouth positioning plate to rise by one unit height, driving the water filling head and the liquid level sensing probe to rise in the empty bottle; the water filling head outputs liquid to the empty bottle until the liquid contacts the liquid level sensing probe and stops outputting liquid, and the actual position of the liquid level sensing probe is recorded as the actual water filling height; (A4) Repeat step (A3) until the actual water filling height approaches the preset water filling height and then stop executing; obtain the actual water filling mass on the electronic scale and convert it into the actual water filling volume; (A5) Determine whether the difference between the actual water injection volume and the preset water injection volume is within the preset range, if so, it is qualified, otherwise it is unqualified; The water injection height detection method comprises: (B3) The servo lift driver drives the bottle mouth positioning plate to rise by one unit height, driving the water filling head and the liquid level sensing probe to rise in the empty bottle; the water filling head outputs a fixed amount of liquid to the empty bottle, and obtains the actual water filling mass on the electronic scale, which is then converted into the actual water filling volume; (B4) Repeat step (B3) until the actual water injection volume approaches the preset water injection volume and then stop executing; record the liquid level height corresponding to the actual water injection volume as the actual water injection height according to the position of the liquid level sensing probe; (B5) judging whether the difference between the actual water filling height and the preset water filling height is within the preset range, if so, it is qualified, otherwise, it is unqualified; In the step (B4), the step of determining the actual water filling height includes: the servo lifting driver drives the bottle mouth positioning plate to rise to a certain height, driving the liquid level sensing probe to separate from the liquid surface, and then the servo lifting driver drives the bottle mouth positioning plate to descend, so that the liquid level sensing probe descends to just contact the liquid surface, and the height position of the sensing end of the liquid level sensing probe is recorded as the actual water filling height; In the step (B4), the step of determining the actual water injection height includes: (B4-1): The liquid level sensing probe is separated from the liquid surface at the beginning, and the servo lifting driver drives the bottle mouth positioning plate to descend at a first acceleration, so that the liquid level sensing probe descends until it contacts the liquid surface, and obtains the first water injection height when it contacts the liquid surface at the first acceleration; the servo lifting driver drives the bottle mouth positioning plate to rise, so that the liquid level sensing probe is separated from the liquid surface; (B4-2): The second acceleration is preset according to the first water filling height, so that the second acceleration is designed to be smaller than the first acceleration; the servo lifting driver then drives the bottle mouth positioning plate to descend at the second acceleration, so that the liquid level sensing probe descends to just touch the liquid surface, and the second water filling height that touches the liquid surface when the second acceleration is obtained; In the step (B5), it is determined whether the difference between the second water injection height and the preset water injection height is within a preset range.

2. A method for detecting the filling height and filling capacity of an empty bottle according to claim 1, characterized in that: When the water injection volume detection method is selected, in the step (A4), the output flow rate of the water injection head when the step (A3) is performed the next time is smaller than the output flow rate when the step (A3) is performed the previous time; When the water injection height detection method is selected, in the step (B4), the output flow rate of the water injection head when the step (B3) is performed for the next time is smaller than the output flow rate when the step (B3) is performed for the previous time.

3. A method for detecting the filling height and filling capacity of an empty bottle according to claim 1, characterized in that: In the step (2), after the bottle mouth positioning plate descends at a preset speed to abut against the bottle mouth of the empty bottle, it is determined whether the empty bottle is deformed, and if so, it is determined to be unqualified.

4. A method for detecting the filling height and filling capacity of an empty bottle according to claim 1, characterized in that: In the step (1), a centering driver is used to center the empty bottle; an L-shaped groove is provided at the output end of the centering driver, and the L-shaped grooves are arranged in pairs; The centering driver drives the two L-shaped grooves to move horizontally toward each other. When the two L-shaped grooves are close to each other, they form a four-sided groove for accommodating empty bottles, and the mouth of the empty bottle is vertically aligned with the water filling head and the liquid level sensing probe.

5. A method for detecting the filling height and filling capacity of an empty bottle according to any one of claims 1 to 4, characterized in that: When selecting the detection mode before step (2) is completed, it is also selected whether to perform the whole bottle capacity detection step after the water filling volume detection method or the water filling height detection method; The whole bottle capacity detection step includes: a servo lifting driver drives the bottle mouth positioning plate to rise, so that the liquid level sensing probe is separated from the liquid surface, and liquid is continuously added to the bottle through the water injection head until the liquid contacts the sensing end of the liquid level sensing probe and then the liquid output is stopped, and the execution is repeated; the execution is stopped until the sensing end of the liquid level sensing probe moves upward away from the bottle mouth reference height, and the water injection head stops injecting water; and the mass of the electronic scale is obtained and used as the capacity of the empty bottle after converting the volume.

6. A method for detecting the filling height and filling capacity of an empty bottle according to claim 5, characterized in that: After the whole bottle capacity detection step is performed, the water filling head moves downward to extend into the bottle and sucks away the liquid so that the liquid level is lower than the bottle mouth.

7. A system for detecting the filling height and filling capacity of an empty bottle, used for executing the method for detecting the filling height and filling capacity of an empty bottle as claimed in any one of claims 1 to 6, characterized in that: include: Electronic scale, bottle mouth positioning plate, water filling head, liquid level sensing probe and servo lifting drive; The electronic scale is used to place an empty bottle and measure the mass of the liquid in the empty bottle; The water filling head and the liquid level sensing probe are respectively installed on the bottle mouth positioning plate, and the output end of the servo lifting driver is connected to the bottle mouth positioning plate, which is used to drive the bottle mouth positioning plate to move up and down, drive the bottle mouth positioning plate to move up and down, and make the water filling head and the liquid level sensing probe rise and fall on the empty bottle, and the liquid level sensing probe is respectively communicated with the water filling head and the servo lifting driver.

8. A system for detecting the filling height and filling capacity of an empty bottle according to claim 7, characterized in that: Also includes: Centering drive; An L-shaped groove is provided at the output end of the centering driver; the L-shaped grooves are arranged in pairs, and the centering driver is used to drive the L-shaped grooves to move horizontally, so that the two L-shaped grooves move toward each other, and the L-shaped grooves form a four-sided groove for accommodating empty bottles when they are close to each other, and the four-sided grooves are vertically aligned with the water filling head and the liquid level sensing probe.

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