A bottle weighing system

Abstract

A bottle weighing system, comprising a bottle conveying track, a weighing platform, a bottle taking assembly and a bottle taking drive for driving the bottle taking assembly, the bottle taking assembly comprising a bottle taking piece and a first bottle abutting piece, the bottle taking piece being provided with a plurality of clamping jaws arranged in rows and capable of being opened and closed for clamping a bottle head, the first bottle abutting piece being provided with a positioning groove corresponding to the clamping jaws, the weighing platform being provided with a weighing support corresponding to the clamping jaws, the first bottle abutting piece being arranged below the bottle taking piece, one side of the bottle conveying track being provided with a second bottle abutting piece, the first bottle abutting piece and the second bottle abutting piece positioning the bottle from both sides, respectively, the bottle being clamped and positioned from both sides by the first bottle abutting piece and the second bottle abutting piece, ensuring the stability and posture consistency of the bottle at the moment of grabbing, ensuring accurate placement on the weighing support, and reducing weighing errors and operation failures caused by bottle tilting and shaking.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical machinery technology, and in particular to a bottle weighing system. Background Technology

[0002] In the field of pharmaceutical machinery, especially in aseptic filling equipment, automatic picking, placing, and transferring of bottles (such as ampoules and vials) is frequently required. Various bottle weighing systems already exist in the technology, such as the bottle picking and placing device disclosed in Chinese patent CN222860512U. This device includes a bottle picking component, a linkage mechanism, a drive mechanism, and a orientation mechanism. It achieves stable bottle transfer through a parallelogram linkage structure, is suitable for bottle handling in clean environments, and exhibits good motion stability and spatial adaptability.

[0003] However, this device still has certain limitations when used for online weighing and sampling of ampoules. Ampoules are long and slender; if a traditional vacuum suction cup method is used, and a group of ampoules is being gripped simultaneously, if even one ampoule is not firmly held, the entire vacuum system will fail, causing the whole group of ampoules to fall, severely impacting the sampling success rate and equipment stability. Furthermore, ampoules are prone to tilting or shaking during transport, affecting the accuracy of placement and consequently the reliability of the weighing results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a bottle weighing system for stable bottle removal.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a bottle weighing system, including a bottle conveying track, a weighing platform, a bottle picking assembly, and a bottle picking drive for driving the bottle picking assembly. The bottle picking assembly includes a bottle picking component and a first bottle holding component. The bottle picking component is provided with multiple rows of openable and closable grippers for holding the bottle head. The first bottle holding component is provided with positioning grooves corresponding to the grippers. The weighing platform is provided with weighing supports corresponding to the grippers. The first bottle holding component is located below the bottle picking component. A second bottle holding component is provided on one side of the bottle conveying track. The first bottle holding component and the second bottle holding component respectively position the bottle from both sides of the bottle. The side of the bottle conveying track opposite to the second bottle holding component is provided with a liftable railing and the weighing platform.

[0006] This solution utilizes multiple grippers on the bottle-grabbing component to simultaneously grasp groups of bottles, resulting in high efficiency. The first and second bottle-holding components clamp and position the bottles from both sides, ensuring the stability and consistent posture of each bottle on the conveyor track during the moment the bottle head is grasped by the grippers and during its transfer from the conveyor track to the weighing tray. This ensures accurate placement onto the weighing tray and reduces weighing errors and operational failures caused by bottle tilting or shaking when the grippers grasp only one end of the bottle. A liftable barrier is located on the side of the conveyor track opposite the second bottle-holding component. This barrier serves as a guide and limiting mechanism for bottle transport, ensuring orderly arrangement of bottles within the track and lowering to provide unobstructed operating space when the bottle-grabbing component operates. After the operation is completed, it rises to continue guiding bottles, improving the system's coordination and automation level.

[0007] Furthermore, the second bottle-supporting component includes a bottle mouth support plate and a bottle body support plate, with the bottle body support plate located below the bottle mouth support plate. The bottle mouth support plate and the bottle body support plate can simultaneously position and support the two key parts of the bottle body, the mouth and the body, effectively preventing the bottle from tipping over or shaking excessively during transportation, thus further improving positioning reliability.

[0008] Furthermore, the second bottle-supporting component has a positioning groove on the side facing the bottle body. The positioning grooves on the first and second bottle-supporting components are adapted to the shape of the bottle body. The positioning groove is used to position the bottle body. The positioning groove can constrain the bottle body's degree of freedom in the horizontal direction, so that the position of the bottle body is always controllable during the gripping and transportation process, which greatly improves the repeatability accuracy of the bottle body when placed on the weighing support.

[0009] Furthermore, the gripper is a pneumatic flexible gripper, and the bottle-retrieving drive is equipped with an air vent. The air vent is connected to the pneumatic flexible gripper via a pipeline. Using a pneumatic flexible gripper and controlling it through a unified air vent results in a simple structure and fast response speed. More importantly, each pneumatic flexible gripper can independently maintain clamping force under air pressure. Even if a single gripper fails to retrieve a bottle, it will not cause the entire group of bottles to fall out of control. This completely solves the problem of the entire group falling due to single-point failure in traditional vacuum adsorption methods, significantly improving the sampling success rate and system reliability.

[0010] Furthermore, the bottle conveying track is arranged parallel to the weighing platform, reducing space occupation.

[0011] Furthermore, a liftable blocking component is provided between the bottle conveying track and the weighing platform. When not picking up the bottle, the blocking component is used to prevent bottle fragments, liquid medicine, and other debris from falling onto the weighing platform and affecting the weighing accuracy. When picking up the bottle, the blocking component descends to avoid interference.

[0012] Furthermore, a debris collection device is provided on one side of the bottle-removing drive. The debris collection device includes a collection box, a negative pressure hose, and a fixing frame. The negative pressure hose is connected to the collection box, the collection box is connected to an external negative pressure device, and the fixing frame is used to fix the negative pressure hose. The debris collection device can promptly suck up and collect bottle fragments and other debris that fall onto the weighing platform to avoid affecting the weighing accuracy.

[0013] Furthermore, an electrostatic eliminator is provided above the bottle-receiving component.

[0014] Furthermore, the weighing platform is equipped with a third bottle-supporting component. The third bottle-supporting component and the first bottle-supporting component position the bottle from both sides of the bottle body. The third bottle-supporting component on the weighing platform, together with the first bottle-supporting component, forms a double-sided positioning structure to ensure that the bottle body remains upright and stable during the process of being placed on the weighing platform and transported after weighing.

[0015] The beneficial effects of this utility model are as follows: This utility model uses grippers to hold the bottle head, which is especially useful when multiple bottles are being transported close together. The gap between the bottles is only large at the bottle head position, which facilitates gripping by the grippers. In addition, the first and second bottle-supporting components position the bottles from both sides, ensuring the stability and consistency of the bottle's posture at the moment of gripping. This ensures that the bottle can be accurately placed on the weighing support afterward, reducing weighing errors and operation failures caused by bottle tilting or shaking. Attached Figure Description

[0016] Figure 1 —A perspective view of this utility model;

[0017] Figure 2 —A perspective view of the weighing platform and bottle-retrieving assembly of this utility model;

[0018] Figure 3 —A perspective view of the blocking component and debris collection device of this utility model;

[0019] Figure 4 —A perspective view of the bottle-removing component of this utility model;

[0020] Figure 5 —A three-dimensional view of the weighing platform of this utility model;

[0021] In the diagram: 1-Bottle conveying track, 11-Second bottle support, 12-Bottle mouth support plate, 13-Bottle body support plate, 14-Barrier, 2-Weighing platform, 21-Third bottle support, 22-Weighing tray, 23-Temporary bottle storage tray, 3-Bottle retrieval assembly, 31-Bottle retrieval component, 32-First bottle support, 33-Gripper, 4-Bottle retrieval drive, 41-Ventilation port, 5-Positioning groove, 6-Blocking component, 7-Crushing debris collection device, 71-Collection box, 72-Negative pressure hose, 73-Fixing frame, 8-Static eliminator. Detailed Implementation

[0022] Reference Figures 1-5 A bottle weighing system includes a bottle conveying track 1, a weighing platform 2, a bottle picking assembly 3, and a bottle picking drive 4 that drives the bottle picking assembly 3.

[0023] The bottle conveying track 1 is used to convey bottles. A second bottle-supporting component 11 is provided on one side of the bottle conveying track 1. The second bottle-supporting component 11 includes a bottle mouth support plate 12 and a bottle body support plate 13. The bottle body support plate 13 is located below the bottle mouth support plate 12, providing support and limiting for the bottle mouth and body respectively. A positioning groove 5 adapted to the shape of the bottle is provided on the side of the second bottle-supporting component 11 facing the bottle to better constrain the position of the bottle. On the other side of the bottle conveying track 1 opposite to the second bottle-supporting component 11, a liftable barrier 14 is provided. The barrier 14 is raised during normal conveying to guide and prevent the bottle from falling; when the bottle picking component 3 picks up and puts down the bottle, the barrier 14 is lowered to provide space for operation and avoid interference.

[0024] The weighing platform 2 is arranged parallel to the bottle conveying track 1 to save space and simplify the bottle retrieval path. The weighing platform 2 is equipped with multiple weighing supports 22 corresponding to the grippers 33 of the bottle retrieval assembly 3, used for accurately supporting the bottles and measuring their weight. Figure 5 As shown, the weighing platform 2 is also equipped with temporary bottle holders 23, which are used to temporarily hold bottles. Specifically, there are four weighing trays 22 in total, and each weighing tray 22 has three temporary bottle holders 23 on both sides. The bottle picking component 3 picks up sixteen bottles at a time, dividing the sixteen bottles into four groups. One group is weighed at a time, and the remaining groups are placed on the temporary bottle holders 23. This design is mainly because the distance between the bottles is relatively small, while the weighing sensor is relatively large. To avoid increasing the distance adjustment function, an interval weighing method is adopted. In this embodiment, three bottles are weighed at intervals. For example, the first bottle and the fifth bottle are weighed together, and the second bottle and the sixth bottle are weighed together. The weighing trays 22 and the temporary bottle holders 23 are hollowed out to prevent impurities from falling on them and affecting the weighing effect.

[0025] A third bottle-holding component 21 is also provided on the weighing platform 2 for positioning the bottle from one side during the weighing process. A liftable barrier 6 is provided between the bottle conveying track 1 and the weighing platform 2. During non-bottle-removal periods, the barrier 6 rises to effectively prevent bottle fragments, liquid medicine, and other debris from falling into the weighing platform 2, protecting the weighing sensor and maintaining the cleanliness of the weighing area; when removing a bottle, the barrier 6 descends to avoid interference with the bottle or the bottle-removal component 3.

[0026] The bottle-grabbing assembly 3 includes a bottle-grabbing component 31 and a first bottle-holding component 32. The bottle-grabbing component 31 is equipped with multiple independently opening and closing grippers 33 arranged in rows to hold the bottle heads. Because ampoules are transported in rows with relatively small gaps between them, the grippers 33 cannot grasp the bottle body and can only grasp the bottle head. However, the bottle heads of ampoules are irregular, making it easy for the grippers 33 to tilt during gripping. Preferably, the grippers 33 are pneumatic flexible grippers, connected to an air vent 41 on the bottle-grabbing drive 4 via a pipeline, and their opening and clamping actions are controlled by an external compressed air and vacuum system. This pneumatic control method provides rapid response, and the failure of a single gripper will not cause the entire group of bottles to fall, resulting in high reliability. The first bottle-holding component 32 is located below the bottle-grabbing component 31, and it is provided with a positioning groove 5 corresponding to the gripper 33. The positioning groove 5 works together with the positioning groove 5 on the second bottle-holding component 11 to accurately position and support the bottle from both sides when gripping the bottle, ensuring the stability of the bottle's posture.

[0027] An electrostatic eliminator 8 is installed above the bottle-removing component 31 to eliminate static electricity, prevent static electricity from attracting dust or interfering with the weighing sensor, and ensure weighing accuracy.

[0028] A debris collection device 7 is provided on one side of the bottle-removing drive 4. This device includes a collection box 71, a negative pressure hose 72, and a fixing frame 73. One end of the negative pressure hose 72 is connected to the collection box 71, and the collection box 71 is connected to an external negative pressure air source (not shown in the figure). The fixing frame 73 is used to fix the negative pressure hose 72. When it is necessary to clean the debris on the weighing platform 2, the negative pressure air source is activated, and the negative pressure hose 72 is manually grasped to suck up the debris on the weighing platform 2.

[0029] The bottle-removing drive 4 is a multi-link drive, and the prior art in the background section can be referred to.

[0030] The working principle and usage of this utility model are as follows: Empty bottles are transported to the filling and bottle-retrieving area via the bottle conveying track 1. When sampling and weighing are required, the barrier 14 and the blocking member 6 descend. The bottle-retrieving drive 4 drives the bottle-retrieving assembly 3 to move above the bottle conveying track 1, aligning the gripper 33 with the empty bottle (usually the neck or shoulder). Simultaneously, the first bottle-holding member 32 and the second bottle-holding member 11 work together from both sides to ensure that the bottle remains upright and stable at the moment of gripping. Subsequently, the gripper 33 closes under pneumatic control, gripping a group of bottles. The bottle-retrieving drive 4 transfers the bottles to the weighing platform 2 and accurately places each bottle onto the corresponding weighing tray 22 to weigh the empty bottle. At this time, the first bottle-holding member 32 and the third bottle-holding member 21 on the weighing platform 2 again form a double-sided positioning, ensuring the stability of the bottle during the weighing process. After the empty bottle is weighed, it is returned to the bottle conveying track 1. The grippers release, the gate 14 rises, and the blocking component 6 rises. The second bottle-holding component 11, together with the gate 14, confines the empty bottle below the filling assembly for filling. After the empty bottle is filled, it is removed from the weighing platform 2 in the same way as when removing the empty bottle, and weighed again to complete one sampling and weighing cycle. The weight of the liquid filled into the bottle by the filling assembly is obtained by calculating the difference between the two weights of each bottle.

[0031] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A bottle weighing system, comprising a bottle conveying track (1), a weighing platform (2), a bottle picking assembly (3), and a bottle picking drive (4) for driving the bottle picking assembly (3), characterized in that: The bottle-retrieving assembly (3) includes a bottle-retrieving component (31) and a first bottle-supporting component (32). The bottle-retrieving component (31) is provided with multiple rows of openable and closable grippers (33) for holding the bottle head. The first bottle-supporting component (32) is provided with positioning grooves (5) corresponding to the grippers (33). The weighing platform (2) is provided with weighing supports (22) corresponding to the grippers (33). The first bottle-supporting component (32) is located below the bottle-retrieving component (31). A second bottle-supporting component (11) is provided on one side of the bottle conveying track (1). The first bottle-supporting component (32) and the second bottle-supporting component (11) respectively position the bottle body from both sides of the bottle body. The bottle conveying track (1) is provided with a liftable railing (14) and the weighing platform (2) on the side opposite to the second bottle-supporting component (11).

2. The bottle weighing system according to claim 1, characterized in that: The second bottle support component (11) includes a bottle mouth support plate (12) and a bottle body support plate (13), with the bottle body support plate (13) located below the bottle mouth support plate (12).

3. The bottle weighing system according to claim 1, characterized in that: The second bottle-supporting component (11) has a positioning groove (5) on the side facing the bottle body. The positioning groove (5) on the first bottle-supporting component (32) and the second bottle-supporting component (11) is adapted to the shape of the bottle body. The positioning groove (5) is used to position the bottle body.

4. The bottle weighing system according to claim 1, characterized in that: The gripper (33) is a pneumatic flexible gripper, and the bottle-removing drive (4) is provided with an air vent (41), which is connected to the pneumatic flexible gripper through a pipeline.

5. A bottle weighing system according to claim 1, characterized in that: The bottle conveying track (1) is arranged in parallel with the weighing platform (2).

6. A bottle weighing system according to claim 5, characterized in that: A liftable stop (6) is provided between the bottle conveying track (1) and the weighing platform (2).

7. A bottle weighing system according to any one of claims 1 to 6, characterized in that: The bottle-removing drive (4) is provided with a debris collection device (7) on one side. The debris collection device (7) includes a collection box (71), a negative pressure hose (72) and a fixing frame (73). The negative pressure hose (72) is connected to the collection box (71), the collection box (71) is connected to an external negative pressure device, and the fixing frame (73) is used to fix the negative pressure hose (72).

8. A bottle weighing system according to any one of claims 1 to 6, characterized in that: An electrostatic eliminator (8) is provided above the bottle-retrieving component (31).

9. A bottle weighing system according to any one of claims 1 to 6, characterized in that: The weighing platform (2) is provided with a third bottle support component (21), and the third bottle support component (21) and the first bottle support component (32) position the bottle body from both sides of the bottle body respectively.

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