Glass bottle quality monitoring device and glass bottle production line

Abstract

The utility model provides a glass bottle quality monitoring device and a glass bottle production line, and the glass bottle quality monitoring device comprises a grabbing assembly; the weighing assembly and the grabbing assembly are correspondingly arranged, the weighing assembly comprises a weighing structure, a supporting structure and a first vertical driving structure, the weighing structure is fixed to the rack, the supporting structure and the weighing structure are correspondingly arranged, and the supporting structure is connected with the first vertical driving structure; the upper edge of the weighing structure has a weighing state higher than the upper edge of the supporting structure and a to-be-weighed state lower than the upper edge of the supporting structure. According to the technical scheme, the problem that in the prior art, in the glass bottle quality monitoring process, the measurement result is not accurate is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of glass processing, and in particular to a glass bottle quality monitoring device and a glass bottle production line. Background Art

[0002] During the glass bottle production process, the quality of the glass bottles needs to be monitored to ensure that the product quality meets the production standards.

[0003] Some defects, such as tube wall thickness, bottle bottom thickness, mouth material shortage, bottom material shortage, etc., are not easy to be detected by automated visual inspection equipment. The above defects are usually detected by weighing.

[0004] In the prior art, the weighing structure weighs the glass bottle as the structure for lifting the glass bottle rises. During the weighing process, the reading is affected by weightlessness, overweight, etc., and the measurement result is inaccurate, such as CN219030990U. Utility Model Content

[0005] A technical problem to be solved by the present application is that in the process of monitoring the quality of glass bottles, there is a problem of inaccurate measurement results.

[0006] In order to solve the above technical problems, the present application provides a glass bottle quality monitoring device and a glass bottle production line.

[0007] A glass bottle quality monitoring device provided according to the present application includes: a grabbing assembly; a weighing assembly, the weighing assembly and the grabbing assembly are arranged correspondingly, the weighing assembly includes a weighing structure, a supporting structure and a first vertical driving structure, the weighing structure is fixed on a frame, the supporting structure and the weighing structure are arranged correspondingly, the supporting structure is connected to the first vertical driving structure, and the upper edge of the weighing structure has a weighing state higher than the upper edge of the supporting structure and a to-be-weighed state lower than the upper edge of the supporting structure.

[0008] In some embodiments, the weighing structure includes a measuring part, a first connecting part and multiple first supporting parts. The measuring part is fixed on the frame, the first connecting part is connected to the measuring part, the multiple first supporting parts are connected in sequence, and the first supporting part is connected to the first connecting part and is located on the side of the first connecting part away from the measuring part.

[0009] In some embodiments, the heights of the plurality of first support portions decrease continuously from both ends to the middle.

[0010] In some embodiments, the support structure includes a second connection portion and multiple second support portions, the multiple second support portions are connected to the second connection portion, the second connection portion is connected to the first vertical driving structure, and the multiple second support portions are arranged one-to-one with the multiple first support portions.

[0011] In some embodiments, the height of the second supporting portion decreases continuously from both ends to the middle.

[0012] In some embodiments, the second connecting portion includes a first plate body, a second plate body and a third plate body, the first plate body, the second plate body and the third plate body are connected in sequence, and the weighing structure is located between the first plate body and the third plate body.

[0013] In some embodiments, the second plate has an opening, and the projection of the weighing structure in the vertical direction is located inside the projection of the opening in the vertical direction.

[0014] In some embodiments, the gripping assembly includes a gripping structure, a horizontal drive structure, and a second vertical drive structure, the gripping structure is connected to the second vertical drive structure, and the second vertical drive structure is connected to the horizontal drive structure.

[0015] In some embodiments, the gripping structure includes a plurality of suction cups, the plurality of suction cups are arranged at intervals, and the intervals between adjacent suction cups are the same as the lengths of adjacent second supporting portions.

[0016] According to another aspect of the present application, a glass bottle production line is provided. The glass bottle production line adopts the above-mentioned glass bottle quality monitoring device. The glass bottle production line includes a first conveying structure and a second conveying structure. The weighing component is located between the first conveying structure and the second conveying structure.

[0017] Through the above technical scheme, the glass bottle quality monitoring device and glass bottle production line provided by the present application use the first vertical drive structure to adjust the position of the support structure in the vertical direction, so that the upper edge of the support structure is higher than the upper edge of the weighing structure. The grabbing assembly grabs the glass to be tested to the weighing assembly and places it on the support structure, and uses the first vertical drive structure to adjust the support structure to move downward until the upper edge of the support structure is lower than the upper edge of the weighing structure. At this time, the glass bottle is completely supported by the weighing structure, and the weighing structure weighs the quality of the glass bottle. After the weighing is completed, the grabbing assembly grabs the glass bottle and transfers the glass bottle to other processes. During the weighing process, the position of the weighing structure remains unchanged, so it will not be affected by weight loss, overweight and other phenomena, and the measurement error is small. The technical scheme of the present application effectively solves the problem of inaccurate measurement results in the process of monitoring the quality of glass bottles in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The structural diagram of the glass bottle quality monitoring device disclosed in the first embodiment of the present application is shown:

[0020] Figure 2 Shows Figure 1 A schematic diagram of the structure of a weighing assembly of a glass bottle quality monitoring device;

[0021] Figure 3 Shows Figure 1 A structural schematic diagram of a weighing structure of a glass bottle quality monitoring device;

[0022] Figure 4 Shows Figure 1 A schematic diagram of the structure of the support structure of the glass bottle quality monitoring device;

[0023] Figure 5 Shows Figure 1 Schematic diagram of the structure of the grabbing structure of the glass bottle quality monitoring device.

[0024] Description of reference numerals:

[0025] 10. Grabbing assembly; 11. Grabbing structure; 111. Suction cup; 12. Horizontal drive structure; 13. Second vertical drive structure; 20. Weighing assembly; 21. Weighing structure; 211. Measuring part; 212. First connecting part; 213. First supporting part; 22. Supporting structure; 221. Second connecting part; 2211. First plate body; 2212. Second plate body; 2213. Third plate body; 222. Second supporting part; 23. First vertical drive structure. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions and drawings of the following examples are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments of the present application, but includes all technical solutions that fall within the scope of the claims.

[0027] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0028] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0030] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0031] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] like Figures 1 to 5As shown, the glass bottle quality monitoring device disclosed in the first embodiment of the present application includes: a gripping assembly 10 and a weighing assembly 20, the weighing assembly 20 is arranged corresponding to the gripping assembly 10, the weighing assembly 20 includes a weighing structure 21, a supporting structure 22 and a first vertical driving structure 23, the weighing structure 21 is fixed on the frame, the supporting structure 22 is arranged corresponding to the weighing structure 21, the supporting structure 22 is connected to the first vertical driving structure 23, and the upper edge of the weighing structure 21 has a weighing state higher than the upper edge of the supporting structure 22 and a to-be-weighed state lower than the upper edge of the supporting structure 22.

[0034] The technical solution of the first embodiment is applied, and the first vertical driving structure 23 is used to adjust the position of the support structure 22 in the vertical direction, so that the upper edge of the support structure 22 is higher than the upper edge of the weighing structure 21. The grabbing assembly 10 grabs the glass to be tested to the weighing assembly 20 and places it on the support structure 22. The first vertical driving structure is used to adjust the support structure 22 to move downward until the upper edge of the support structure 22 is lower than the upper edge of the weighing structure 21. At this time, the glass bottle is completely supported by the weighing structure 21, and the weighing structure 21 weighs the quality of the glass bottle. After the weighing is completed, the grabbing assembly 10 grabs the glass bottle and transfers the glass bottle to other processes. During the weighing process, the position of the weighing structure 21 remains unchanged, so it will not be affected by weight loss, overweight and other phenomena, and the measurement error is small. The technical solution of the first embodiment effectively solves the problem of inaccurate measurement results in the process of monitoring the quality of glass bottles in the prior art.

[0035] like Figures 1 to 3 As shown, in the technical solution of the first embodiment, the weighing structure 21 includes a measuring part 211, a first connecting part 212 and a plurality of first supporting parts 213. The measuring part 211 is fixed on the frame, the first connecting part 212 is connected to the measuring part 211, and the plurality of first supporting parts 213 are connected in sequence. The first supporting part 213 is connected to the first connecting part 212 and is located on the side of the first connecting part 212 away from the measuring part 211. The measuring part 211 uses a precision gravity sensor. After the measuring part 211 is installed on the frame, the first connecting part 212 and the plurality of first supporting parts 213 are installed in sequence. After the installation is completed, the measuring part 211 is zeroed. The glass bottles to be tested are placed on different first supporting parts 213 respectively. After the reading is stable, the total mass of the glass bottles is read, the average mass is calculated according to the number of glass bottles, and the theoretical mass calculation value is compared. The process is adjusted according to the calculated value to ensure that the output quality of the glass bottles is close to the theoretical value. The provision of multiple first support parts 213 prevents multiple glass bottles from colliding with each other during the weighing process, thereby preventing the glass bottles from being damaged.

[0036] like Figures 1 to 3As shown, in the technical solution of the first embodiment, the height of the multiple first support parts 213 is continuously reduced along the direction from the two ends to the middle. The first support part 213 has a first inclined plane and a second inclined plane, the first inclined plane is connected to the second inclined plane, the height of the first inclined plane is continuously increased along the direction from close to far away from the second inclined plane, and the height of the second inclined plane is continuously increased along the direction from close to far away from the first inclined plane. When the glass bottle is placed on the first support part 213, since the first inclined plane and the second inclined plane are both inclined and the lowest point is located in the middle part of the first support part 213, the glass bottle is always located in the middle part of the first support part 213 under the action of gravity. After multiple glass bottles are placed on multiple interconnected first support parts 213, there is a predetermined interval between the multiple glass bottles. In addition, the glass bottle will not move on this structure, avoiding the problem of inaccurate measurement results due to the movement of the glass bottle during the weighing process.

[0037] like Figure 1 , Figure 2 and Figure 4 As shown, in the technical solution of the first embodiment, the support structure 22 includes a second connection part 221 and a plurality of second support parts 222, the plurality of second support parts 222 are connected to the second connection part 221, the second connection part 221 is connected to the first vertical drive structure 23, and the plurality of second support parts 222 are arranged one by one corresponding to the plurality of first support parts 213. During the weighing process, a plurality of glass bottles are placed on different second support parts 222 respectively, and the second support parts 222 move downward in the vertical direction under the action of the first vertical drive structure 23. When the height of the upper edge of the second support part 222 in the vertical direction is lower than that of the first support part 213, the glass bottle is placed on the corresponding first support part 213, and the first support part 213 supports the glass bottle and is weighed by the measuring part 211. During this process, the position of the entire weighing structure 21 remains unchanged, so the measured value of the measuring part 211 will not be affected by the phenomenon of weightlessness or overweight.

[0038] like Figure 1 , Figure 2 and Figure 4As shown, in the technical solution of the first embodiment, the height of the second support part 222 is continuously reduced along the direction from the two ends to the middle. The second support part 222 has a third inclined plane and a fourth inclined plane, the third inclined plane is connected to the fourth inclined plane, the height of the third inclined plane is continuously increased along the direction from close to the fourth inclined plane to away from the fourth inclined plane, the height of the fourth inclined plane is continuously increased along the direction from close to the third inclined plane to away from the third inclined plane, and the lowest point of the second support part 222 is set correspondingly to the lowest point of the first support part 213 corresponding to it. After the glass bottle is placed on the second support part 222, it rolls to the lowest point of the second support part 222 under the action of gravity. After the glass bottle is stable, the second support part 222 is driven to descend by the first vertical driving structure 23. Since the glass bottle is located at the lowest point of the second support part 222 and the lowest point of the second support part 222 is set correspondingly to the lowest point of the first support part 213, the glass bottle is directly placed at the lowest point of the first support part 213 and will not roll on the first support part 213 under the action of the first inclined plane and the second inclined plane. The whole process is carried out smoothly, so the reading measured by the measuring part 211 is more accurate.

[0039] like Figure 1 , Figure 2 and Figure 4 As shown, in the technical solution of the first embodiment, the second connecting part 221 includes a first plate 2211, a second plate 2212 and a third plate 2213, the first plate 2211, the second plate 2212 and the third plate 2213 are connected in sequence, and the weighing structure 21 is located between the first plate 2211 and the third plate 2213. The first plate 2211 and the third plate 2213 are both provided with a second supporting part 222, the second supporting part 222 connected to the first plate 2211 and the second supporting part 222 connected to the third plate 2213 are provided one by one, and the distance between the second supporting part 222 connected to the first plate 2211 and the second supporting part 222 connected to the third plate 2213 is less than the length of the glass bottle, so as to ensure that when supporting the glass bottle, both ends of the glass bottle are supported, thereby ensuring the stability of the support. The weighing structure 21 is arranged between the first plate 2211 and the third plate 2213. At this time, the first support part 213 is located between the two second support parts 222. The second support part 222 descends, and the middle section of the glass bottle is placed on the first support part 213. The first support part 213 and the second support part 222 have different contact positions with the glass bottle, so there will be no interference, and both the two end supports and the middle support can ensure the stability of the support.

[0040] like Figure 1 , Figure 2 and Figure 4As shown, in the technical solution of the first embodiment, the second plate 2212 has an opening, and the projection of the weighing structure 21 in the vertical direction is located inside the projection of the opening in the vertical direction. The measuring part 211 is fixed on the frame, the frame is located at the bottom of the measuring part 211, and the frame passes through the opening to connect with the measuring part 211. The setting of the opening avoids interference between the support structure 22 and the frame or the weighing structure during movement.

[0041] like Figure 1 and Figure 5 As shown, in the technical solution of the first embodiment, the grabbing assembly 10 includes a grabbing structure 11, a horizontal driving structure 12 and a second vertical driving structure 13. The grabbing structure 11 is connected to the second vertical driving structure 13, and the second vertical driving structure 13 is connected to the horizontal driving structure 12. The second vertical driving structure 13 drives the grabbing assembly 10 to move in the vertical direction, and the horizontal driving structure 12 drives the second vertical driving structure 13 to move in the horizontal direction. The horizontal driving structure 12 is arranged parallel to the conveying direction of the glass bottle. Under the action of the second vertical driving structure 13, the grabbing structure 11 descends and grabs the glass bottle on the glass bottle conveying device. After the grabbing is completed, the grabbing structure 11 rises to avoid interference with other glass bottles during the horizontal movement. Under the control of the horizontal driving structure 12, it moves to the weighing assembly 20. The second vertical driving structure 13 controls the glass bottle to descend, and the glass bottle is placed on the supporting structure 22, and then weighed.

[0042] like Figure 1 and Figure 5 As shown, in the technical solution of the first embodiment, the grasping structure 11 includes a plurality of suction cups 111, and the plurality of suction cups 111 are arranged at intervals, and the intervals between adjacent suction cups 111 are the same as the lengths of adjacent second supporting parts 222. After grasping the glass bottle, the plurality of suction cups 111 move to the position corresponding to the second supporting part 222. Since the intervals between adjacent suction cups 111 are the same as the lengths of adjacent second supporting parts 222, the intervals between the plurality of suction cups 111 are the same as the distance between the lowest points of adjacent second supporting parts 222, and the glass bottles are placed on different second supporting parts 222 respectively. The air pipes connected to the plurality of suction cups 111 are provided with electric control valves, and each valve can be controlled separately. By controlling the number of valve openings and closings, the number of glass bottles grasped at a single time can be controlled, and the average mass of the glass bottles can be calculated according to the mass measured by the measuring part 211.

[0043] The difference between the technical solution of the second embodiment and the technical solution of the first embodiment is that the first support portion 213 includes a first curved surface and a second curved surface, the first curved surface is connected to the second curved surface, the height of the first curved surface increases continuously in the direction from close to far away from the second curved surface, the height of the second curved surface increases continuously in the direction from close to far away from the first curved surface, and the transition between the first curved surface and the second curved surface is smooth. The second support portion 222 includes a third curved surface and a fourth curved surface, the third curved surface is connected to the fourth curved surface, the height of the third curved surface increases continuously in the direction from close to far away from the fourth curved surface, the height of the fourth curved surface increases continuously in the direction from close to far away from the third curved surface, and the transition between the third curved surface and the fourth curved surface is smooth. The structure of the first support portion 213 and the second support portion 222 effectively ensures that when the glass bottle contacts the first support portion 213 or the second support portion 222, the contact surface is smooth, which protects the outer surface of the glass bottle.

[0044] The difference between the technical solution of Example 3 and the technical solution of Example 1 lies in that the first plate 2211 is movably connected to the second plate 2212, the third plate 2213 is movably connected to the second plate 2212, a slide rail is provided on the second plate 2212, the slide rail is perpendicular to the conveying direction of the glass bottle conveying device, the first plate 2211 is provided with a first slider matching with the slide rail, and the third plate 2213 is provided with a second slider matching with the slide rail. Under the action of the slide rail, the distance between the first plate 2211 and the third plate 2213 can be changed to adapt to glass bottles of different lengths, and the versatility is stronger.

[0045] According to another aspect of the present application, a glass bottle production line is provided. The glass bottle production line adopts the above-mentioned glass bottle quality monitoring device. The glass bottle production line includes a first conveying structure and a second conveying structure. The weighing assembly 20 is located between the first conveying structure and the second conveying structure. The first conveying structure is arranged at the output end of the bottle making machine, and the second conveying structure is arranged at the input end of the annealing furnace. By arranging the weighing assembly between the bottle making machine and the annealing furnace, it is determined whether the glass bottle is qualified by comparing the weight measurement value with the standard value. The process defects are found before the glass bottle is annealed, and the annealing of the existing defective glass bottles is avoided, which causes energy loss, economic loss, etc. The quality of the glass bottle is related to the length of the bottle body, the thickness of the bottle mouth, the length of the bottleneck and other factors. Four standard glass bottles of the same model as the glass bottle to be tested are selected, and the above data of the four standard glass bottles are measured and substituted into the following formula:

[0046] M=(Hx1+Ax2+Bx3+Nx4)×ρ;

[0047] Where M is the mass of the glass bottle:

[0048] H is the length of the glass bottle:

[0049] A is the thickness of the glass bottle mouth;

[0050] B is the length of the neck of the glass bottle;

[0051] N is other relevant factors;

[0052] ρ is the density of the glass bottle.

[0053] The values ​​of x1, x2, x3 and x4 can be obtained by calculation, and the theoretical quality curve of the glass bottle can be simulated according to the coefficients. By comparing the real-time monitoring data with the theoretical quality curve, it can be judged whether the glass bottle is qualified and the process can be adjusted in time.

[0054] Based on the above, it can be known that an online weighing device (glass bottle quality monitoring device) is designed, installed between the bottle making machine and the annealing furnace, and connected to the control system. In the existing control system, a new program is compiled to reflect the changing trend of the quality of the glass bottle through the change of the bottle weight combined with the monitoring data of the bottle mouth thickness, bottle height, bottleneck length, etc. of the visual inspection equipment, so as to find the changes of the bottle making machine earlier and achieve the purpose of stabilizing the quality of the glass bottle. The present application mainly consists of a sampling device (grabbing component), a buffer support plate (support structure 22), a weighing device (weighing structure 21), and a conveying structure (a first conveying structure and a second conveying structure). Among them, the conveying structure is a transmission device on a traditional medicinal glass bottle detection device, and its design does not affect the implementation of the present application. The purpose of the present application is to add a weighing system provided by the present application between the bottle making machine and the annealing furnace, and use the data of the system for the control of the bottle making detection system to realize the monitoring of the production of medicinal glass bottles. The weighing device of the present application is arranged at the center of the buffer support plate, and the tray (first support part 213) on which the glass bottle is placed on the weighing device is aligned in the horizontal direction with the tray (second support part 222) on the buffer support plate. The position of the weighing device is fixed, and the buffer support plate realizes up and down reciprocating motion through the jacking structure (first vertical drive structure 23). When the jacking structure moves upward to the limit position, it is in the state of receiving the glass bottle. When the jacking structure moves downward to the limit position, the glass bottle is placed on the tray (first support part 213) of the weighing device, thereby avoiding the impact of the glass bottle on the confidential gravity sensor (measuring part 211). The weighing device is composed of a group of two precision gravity sensors and a tray (first support part 213) at the bottom, and the tray (first support part 213) is connected to it through the mounting hole of the precision gravity sensor. The jacking structure is a cylinder jacking device, which uses compressed air as a power source, which is convenient for coordinated control of the weighing device and the sampling device. The jacking structure and the precision gravity sensor 32 with an accuracy of 0.2g and a range of 5 to 20Kg are standard parts, which can be selected according to needs. The number of holes for placing glass bottles on the sampling arm (suction cup 111), the weighing device and the buffer support plate are consistent and used in combination. Theoretically, the more bottles taken, the better it can reflect the real situation. However, considering the size of the device, the difficulty of implementation, etc., 3-5 bottles are preferred. The present application can add a conveyor belt behind the conveyor belt, thereby adding the weighing device between the two conveyor belts. In this way, the structure of the sampling device is simpler. The weighing device can also be set next to the original conveying structure, so as to realize the function without destroying the original structure.The precision gravity sensor has installation holes on the top and bottom. The tray (first support part 213) is installed at the force holes of the precision gravity sensor. The tray (first support part 213) and the tray (second support part 222) of the buffer tray are designed to be sawtooth-shaped, with consistent tooth spacing. The position of the weighing device is fixed. The buffer tray realizes up and down reciprocating motion through the jacking structure. When the jacking structure moves upward to the limit position, it is in the state of receiving the glass bottle. When the jacking structure moves downward to the limit position, the glass bottle is placed on the tray (first support part 213) of the weighing device, thereby avoiding the impact of the glass bottle on the precision gravity sensor. Thereby ensuring the accuracy of the weighing data. In order to ensure accurate calculation, a photoelectric sensor needs to be installed on the conveying structure track entering the weighing device, corresponding to each sawtooth center position, to detect the number of glass bottles weighed each time. Weighing method: In the ready state, the tray (second support part 222) of the buffer tray rises, and its height is slightly higher than the tray (first support part 213) of the weighing device. The glass bottle is transported along the moving direction on the conveying structure, gradually approaching the sampling arm (grabbing structure 11) of the sampling device. When the glass bottle moves to the bottom of the sampling arm, the servo motor drives the sampling arm to suck the glass bottle downward, and the servo motor drives the sampling arm to move on the slide rail (horizontal drive structure 12) to the top of the tray (second support part 222), and then the sampling arm moves downward to place the glass bottle on the serrations of the tray (second support part 222). The buffer tray moves downward to stabilize the glass bottle on the tray (first support part 213), and the weight of the glass bottle is read. The buffer tray rises upward to raise the glass bottle to the upper limit. The sampling arm sucks the glass bottle and places it on the conveyor chain on the other side. Afterwards, the previous actions are repeated to continuously measure the weight of the glass bottle online.

[0055] Calculation method of theoretical bottle weight: When the same batch of glass bottles is used for production, the main factors affecting the quality of the glass bottles are the length of the bottle body H, the thickness of the bottle mouth A, the length of the neck B, and other factors N. When the process is stable, a linear relationship can be obtained:

[0056] Glass bottle weight = (Hx1 + Ax2 + Bx3 + Nx4) × density. Since the density of the same batch of glass bottles is consistent, it can be obtained that: glass bottle weight = Hx1 + Ax2 + Bx3 + Nx4; by statistically analyzing the weight and the value of the visual inspection equipment, it is easy to obtain the coefficients x1~x3 in the computer and simulate a theoretical value curve. Two precision gravity sensors weighted average the data to obtain the data for each weighing, and then divide it by the number of weighings each time to obtain the weight of each bottle. It is transmitted to the computer system for dotting and drawing the curve, and compared with the theoretical value of the unit weight of the glass bottle in the same frame. Process stability: When the error between the theoretical value and the measured value exceeds a certain limit, an early warning is displayed. In this way, the changes in the process are provided to the technicians in a timely manner, so as to facilitate the process adjustment in advance. Monitoring and adjustment are realized to achieve the purpose of stabilizing the molding process. The system can reflect defects such as tube wall thickness, bottle bottom thickness, mouth material shortage, bottom material shortage, etc. that are not easily detected by the visual inspection system.

[0057] So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution of the present application.

[0058] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A glass bottle quality monitoring device, characterized in that: include: Grasping component (10); A weighing component (20), the weighing component (20) being arranged corresponding to the grabbing component (10), the weighing component (20) comprising a weighing structure (21), a supporting structure (22) and a first vertical driving structure (23), the weighing structure (21) being fixed on a frame, the supporting structure (22) being arranged corresponding to the weighing structure (21), the supporting structure (22) being connected to the first vertical driving structure (23), and the upper edge of the weighing structure (21) having a weighing state higher than the upper edge of the supporting structure (22) and a waiting-to-weigh state lower than the upper edge of the supporting structure (22).

2. The glass bottle quality monitoring device according to claim 1, characterized in that: The weighing structure (21) comprises a measuring part (211), a first connecting part (212) and a plurality of first supporting parts (213); the measuring part (211) is fixed on the frame; the first connecting part (212) is connected to the measuring part (211); the plurality of first supporting parts (213) are connected in sequence; the first supporting part (213) is connected to the first connecting part (212) and is located on a side of the first connecting part (212) away from the measuring part (211).

3. The glass bottle quality monitoring device according to claim 2, characterized in that: The heights of the plurality of first supporting portions (213) are continuously reduced from the two ends to the middle.

4. The glass bottle quality monitoring device according to claim 2, characterized in that: The support structure (22) comprises a second connecting portion (221) and a plurality of second supporting portions (222), the plurality of second supporting portions (222) being connected to the second connecting portion (221), the second connecting portion (221) being connected to the first vertical driving structure (23), and the plurality of second supporting portions (222) being arranged in one-to-one correspondence with the plurality of first supporting portions (213).

5. The glass bottle quality monitoring device according to claim 4, characterized in that: The height of the second supporting portion (222) decreases continuously from the two ends to the middle.

6. The glass bottle quality monitoring device according to claim 4, characterized in that: The second connecting part (221) comprises a first plate body (2211), a second plate body (2212) and a third plate body (2213); the first plate body (2211), the second plate body (2212) and the third plate body (2213) are connected in sequence; and the weighing structure (21) is located between the first plate body (2211) and the third plate body (2213).

7. The glass bottle quality monitoring device according to claim 6, characterized in that: The second plate body (2212) has an opening, and the projection of the weighing structure (21) in the vertical direction is located inside the projection of the opening in the vertical direction.

8. The glass bottle quality monitoring device according to claim 4, characterized in that: The gripping assembly (10) comprises a gripping structure (11), a horizontal driving structure (12) and a second vertical driving structure (13); the gripping structure (11) is connected to the second vertical driving structure (13), and the second vertical driving structure (13) is connected to the horizontal driving structure (12).

9. The glass bottle quality monitoring device according to claim 8, characterized in that: The gripping structure (11) comprises a plurality of suction cups (111), wherein the plurality of suction cups (111) are arranged at intervals, and the interval between adjacent suction cups (111) is the same as the length of adjacent second supporting portions (222).

10. A glass bottle production line, characterized in that: The glass bottle production line adopts the glass bottle quality monitoring device according to any one of claims 1 to 9, and the glass bottle production line comprises a first conveying structure and a second conveying structure, and the weighing component (20) is located between the first conveying structure and the second conveying structure.

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