Continuous drop test device for plastic packaging products

Abstract

The utility model provides a continuous drop test device for plastic packaging products, and relates to the technical field of test devices for plastic packaging product production. Comprising a control mechanism, a feeding mechanism, a falling releasing mechanism and a falling receiving mechanism, and the feeding mechanism, the falling releasing mechanism and the falling receiving mechanism are in communication connection with the control mechanism; the feeding mechanism comprises a feeding conveying belt, the feeding conveying belt comprises an inclined feeding section and a horizontal feeding section which are connected, and the height of the inclined feeding section is lower than that of the horizontal feeding section; the falling release mechanism is arranged on one side of the tail end of the horizontal feeding section, and the falling receiving mechanism is arranged below the falling release mechanism. On the basis, the problem that an existing drop test device is difficult to meet the requirement that a plurality of samples need to be continuously dropped in the test process is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of testing devices for the production of plastic packaging products, specifically a continuous drop test device for plastic packaging products. Background Technology

[0002] In the pharmaceutical industry, injectable solutions, oral solutions, and topical liquids commonly use plastic as outer packaging. According to industry manufacturing standards, after the liquid is packaged and sealed during production, a drop test is required to determine its drop resistance. This drop resistance is crucial to the product's safety and stability during transportation, storage, and use. The drop test simulates the product falling freely from a certain height using a drop testing device. After the drop, corresponding visual and functional inspections are performed. Visual inspection involves observing whether the packaging is cracked, deformed, or whether the seals are broken or loose.

[0003] However, most existing drop testing devices have limitations in practical applications. Specifically, to eliminate randomness or to achieve sufficient testing of different samples (materials, specifications, solutions, etc.), it is often necessary to continuously drop a large number of samples during the test. Existing drop testing devices typically use a clamping mechanism (e.g., a robotic arm) to lift the sample to a specified height and then release it, as exemplified by the drop testing device for plastic products provided in patent CN213397571U. In this method, for each sample to be dropped, the clamping mechanism must first clamp the sample at the pick-up position, then lift the sample to the specified height for release, and then return to the pick-up position after releasing the sample. This process is complex and time-consuming. The clamping mechanism needs to repeatedly rise and fall in a specific sequence, and can only achieve the drop release of a single sample sequentially through the periodic movement of the clamping mechanism, rather than achieving efficient continuous drops of multiple samples, which affects test efficiency and lengthens the test cycle. Therefore, current drop testing devices are difficult to meet the needs of continuously dropping multiple samples during the test.

[0004] In summary, this utility model provides a continuous drop test device for plastic packaging products. Utility Model Content

[0005] The purpose of this invention is to provide a continuous drop test device for plastic packaging products to solve the following problems mentioned in the background art: current drop test devices are difficult to meet the needs of continuously dropping multiple samples during the test.

[0006] This utility model is achieved using the following technical solution:

[0007] A continuous drop test device for plastic packaging products includes a control mechanism, a feeding mechanism, a drop release mechanism, and a drop receiving mechanism. The feeding mechanism, drop release mechanism, and drop receiving mechanism are each communicatively connected to the control mechanism. The feeding mechanism includes a feeding conveyor belt, which includes an inclined feeding section and a horizontal feeding section connected to each other. The height of the inclined feeding section is lower than the height of the horizontal feeding section. The drop release mechanism is located on one side of the end of the horizontal feeding section, and the drop receiving mechanism is located below the drop release mechanism.

[0008] Furthermore, the feeding mechanism also includes a storage box and a feeding component, which are disposed on one side of the first end of the inclined feeding section.

[0009] Furthermore, the surface of the feeding conveyor belt is provided with several baffles evenly arranged at intervals, and each baffle has a limiting protrusion on its front side along the conveying direction.

[0010] Furthermore, the drop release mechanism includes a channel plate and a release platform. One side of the channel plate is the end of the horizontal feeding section, and the other side is the release platform. The channel plate is rotatably located on one side of the release platform with an inclined structure from high to low. The channel plate and the baffle are set as a corresponding staggered structure. The release platform includes two symmetrical movable platforms, which are configured to move closer to each other or further apart under the drive of a corresponding opening and closing power mechanism.

[0011] Furthermore, an anti-fall plate is provided on the other side of the release platform, and a trigger switch is provided above the channel plate.

[0012] Furthermore, each of the two movable platforms is provided with a centering component above it. The centering component includes a centering power mechanism and a push plate, and the push plate is connected to the output end of the centering power mechanism.

[0013] Furthermore, the drop-feed receiving mechanism includes a receiving platform, a protective cover, a feeding plate, and a receiving box. The protective cover is installed on the receiving platform. The feeding plate is located at one edge of the receiving platform and inside the protective cover. The feeding plate is configured to push the material into the receiving box under the drive of a corresponding feeding power mechanism. An opening and closing baffle is provided at the bottom of the protective cover surface opposite to the feeding plate. The upper edge of the opening and closing baffle is hinged to the protective cover surface. A receiving box is provided on the receiving platform side outside the opening and closing baffle.

[0014] Furthermore, it also includes a vision inspection mechanism, which is communicatively connected to the control mechanism and is located on one side of the drop receiving mechanism; the vision inspection mechanism includes a column and an industrial camera, which is located on the column and configured to photograph the material on the surface of the receiving platform.

[0015] Furthermore, the feeding plate includes a good product feeding plate and a defective product feeding plate, and the receiving box includes a good product receiving box and a defective product receiving box; the good product feeding plate and the defective product feeding plate are distributed in an L-shape on the receiving platform and do not contact each other; the good product feeding plate and the defective product feeding plate are configured to push good product materials and defective product materials into the good product receiving box and the defective product receiving box respectively under the drive of the corresponding feeding power mechanism.

[0016] Furthermore, the feeding mechanism also includes a lifting drive part, which includes a lifting power mechanism and a follow-up translation mechanism; the output end of the lifting power mechanism is connected to the horizontal feeding section; the follow-up translation mechanism includes a steering roller and a tension spring assembly, the steering roller is disposed inside the connection between the inclined feeding section and the horizontal feeding section and is connected to the output end of the lifting power mechanism, and the tension spring assembly is connected to the beginning end of the inclined feeding section.

[0017] The beneficial effects achieved by this utility model are:

[0018] A continuous drop test device for plastic packaging products is provided. By incorporating a control mechanism, a feeding mechanism, a drop release mechanism, and a drop receiving mechanism, it enables the feeding and continuous release of samples. The feeding mechanism employs a feeding conveyor belt including an inclined feeding section and a horizontal feeding section, thereby continuously receiving samples at a low position and sequentially conveying them to a designated height for drop release, thus achieving rapid and continuous drop testing of multiple samples. Therefore, compared to existing drop test devices that can only sequentially drop and release individual samples through the periodic movement of a clamping mechanism, the test device provided by this invention can meet the requirement of continuously dropping multiple samples during the test, thereby improving test efficiency and shortening the test cycle. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the test device described in Embodiment 1 of this utility model;

[0020] Figure 2 This is a side view of the overall structure of the test device described in Embodiment 1 of this utility model;

[0021] Figure 3 This is a schematic diagram of the drop release mechanism in the test device described in Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the drop receiving mechanism in the test device described in Embodiment 1 of this utility model (excluding the protective cover);

[0023] Figure 5This is a schematic diagram illustrating the working principle of the steering roller and tension spring assembly in the test device described in Embodiment 1 of this utility model;

[0024] Figure 6 This is a schematic diagram of the overall structure of the test device described in Embodiment 2 of this utility model;

[0025] Figure 7 This is a schematic diagram of the drop receiving mechanism in the test device described in Embodiment 2 of this utility model (excluding the protective cover);

[0026] In the diagram: 1. Inclined feeding section; 2. Sample; 3. Baffle; 4. Limiting protrusion; 5. Horizontal feeding section; 6. Protective cover; 7. Receiving box; 8. Opening and closing baffle; 9. Lifting power mechanism; 10. Tensioning roller; 11. Support guide plate; 12. Guide chute; 13. Fixed base; 14. Frame table; 15. Tensioning spring; 16. Drive roller; 17. Support roller; 18. Steering roller; 19. Photoelectric beam switch; 20. Limiting mounting plate; 21. Centering power mechanism; 22. Push plate; 23. Movable table; 24. Channel plate; 25. Anti-fall plate; 26. Opening and closing power mechanism; 27. Receiving platform; 28. Unloading plate; 29. ​​Unloading power mechanism; 30. Industrial camera; 31. Column; 32. Rotation power mechanism. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Example 1

[0029] This embodiment provides a continuous drop test device for plastic packaging products. Please refer to [reference needed]. Figures 1 to 5 It includes a control mechanism, a feeding mechanism, a drop release mechanism, and a drop receiving mechanism. The feeding mechanism, drop release mechanism, and drop receiving mechanism are all communicatively connected to the control mechanism (which, depending on the actual situation, is located at a suitable location on the production site). Among them:

[0030] The feeding mechanism includes a feeding conveyor belt, a lifting drive section, a storage box (not shown in the figure), and a feeding component (not shown in the figure; in other embodiments, a worker may also perform the feeding instead of the feeding component). The feeding conveyor belt includes an inclined feeding section 1 and a horizontal feeding section 5. The lifting drive section includes a lifting power mechanism 9 and a follow-up translation mechanism. The follow-up translation mechanism includes a steering roller 18 and a tension spring assembly. The tension spring assembly includes a support guide plate 11, a guide groove 12, a tension spring 15, and a fixed base 13. Specifically:

[0031] In this embodiment, the feeding conveyor belt adopts a belt conveyor structure. The two rollers at both ends of the feeding conveyor belt are located at a low height position and a high height position, respectively. The two ends of the tension roller 10 located at the low height position are respectively connected to two support guide plates 11, and the two ends of the drive roller 16 located at the high height position are respectively connected to the output end of the lifting power mechanism 9. The lifting power mechanism 9 adopts a screw lifting module. A guide roller 18 is provided on the side of the drive roller 16 near the tension roller 10. The guide roller 18 is at the same height position as the drive roller 16, and the two ends of the guide roller 18 are also respectively connected to the lifting power mechanism 9. At the output end of the power mechanism 9, two support rollers 17 are provided between the drive roller 16 and the steering roller 18. The two ends of the two support rollers 17 are also connected to the output end of the lifting power mechanism 9 respectively. The belt is wrapped around the tension roller 10, the steering roller 18, the two support rollers 17 and the drive roller 16, thereby forming an inclined feeding section 1 and a horizontal feeding section 5 connected to each other. The height of the inclined feeding section 1 is lower than the height of the horizontal feeding section 5. The storage box and the feeding component are set on one side of the first end of the inclined feeding section 1 (that is, the tension roller 10). The feeding component can be a robot or other feasible structure in the prior art.

[0032] The two supporting guide plates 11 are slidably connected in two guide grooves 12 (the guide grooves 12 are equipped with a self-locking structure, i.e., the supporting guide plates 11 cannot slide after automatic locking and can slide after automatic locking is released; the self-locking structure is compatible with the start and stop of the lifting power mechanism 9). One end of a tension spring 15 is fixedly connected to each of the two supporting guide plates 11, and the other end of the two tension springs 15 is connected to a fixed base 13. The two fixed bases 13 are fixedly connected to the frame table 14. Several baffles 3 are evenly arranged on the surface of the feeding conveyor belt, and each baffle 3 has a limiting protrusion 4 on its front side along the conveying direction.

[0033] The drop release mechanism is located at the end of the horizontal feeding section 5 (i.e., on one side of the drive roller 16). The drop release mechanism is integrally connected to the output end of the lifting power mechanism 9. The drop release mechanism includes a channel plate 24 and a release platform, specifically:

[0034] In this embodiment, one side of the channel plate 24 is the end of the horizontal feeding section 5, and the other side is a release platform. Limiting mounting plates 20 are respectively provided on the outer sides of both ends of the channel plate 24 and the release platform. Photoelectric through-beam switches 19 (as trigger switches) are provided on the two limiting mounting plates 20 corresponding to the positions above the channel plate 24. The channel plate 24 is located on one side of the release platform with an inclined structure from high to low. The channel plate 24 and the baffle 3 are set as a toothed staggered structure corresponding to each other. The channel plate 24 includes a mounting rod and a number of teeth. The number of teeth are evenly arranged on the mounting rod. One end of the mounting rod is connected to the output end of the rotary power mechanism 32. The rotary power mechanism 32 is installed on the outer side of one of the limiting mounting plates 20. On one side, the release platform has an anti-fall plate 25 on the other side, with both ends of the anti-fall plate 25 connected to two limit mounting plates 20 respectively. The release platform includes two symmetrical movable platforms 23, each connected to the output end of an opening and closing power mechanism 26. The two opening and closing power mechanisms 26 are located on the outside of the two limit mounting plates 20 respectively, and the opening and closing power mechanisms 26 are telescopic cylinders. Above each of the two movable platforms 23, there is a centering component, which includes a centering power mechanism 21 and a push plate 22. The push plate 22 is connected to the output end of the centering power mechanism 21. The two centering power mechanisms 21 are also located on the outside of the two limit mounting plates 20 respectively, and the centering power mechanisms 21 are telescopic cylinders.

[0035] The drop-feed receiving mechanism is located below the drop-release mechanism. The drop-feed receiving mechanism includes a receiving platform 27, a protective cover 6, a discharge plate 28, and a receiving box 7. Specifically:

[0036] In this embodiment, the receiving platform 27 is a quadrilateral hard and smooth surface platform. The protective cover 6 is made of transparent material and is placed on the receiving platform 27. The protective cover only has four sides and no upper or lower surface. The unloading plate 28 is located at one of the edges of the receiving platform 27. The unloading plate 28 is located inside the protective cover 6. The unloading power mechanism 29 is provided on the outside of the protective cover 6. The unloading plate 28 is connected to the output end of the unloading power mechanism 29 through an opening in the protective cover 6. The unloading power mechanism 29 is a telescopic cylinder. An opening and closing baffle 8 is provided at the bottom of the surface of the protective cover 6 opposite to the unloading plate 28. The upper edge of the opening and closing baffle 8 is hinged to the surface of the protective cover 6. The length of the opening and closing baffle 8 is close to the side length of the protective cover 6 and the height is greater than the height of the sample 2. A receiving box 7 is provided on one side of the receiving platform 27 outside the opening and closing baffle 8.

[0037] Based on the above structure, this experimental device operates as follows:

[0038] Under the control of the control mechanism, the feeding component located on one side of the inclined feeding section 1 automatically and continuously takes out bottled samples 2 (in other embodiments, they may be of other shapes depending on the actual situation) from the storage box and continuously places the samples 2 on the front side of the current receiving baffle 3 along the conveying direction. The placed samples 2 will move from the inclined feeding section 1 to the horizontal feeding section 5 at a specified height as the feeding conveyor belt runs. When the samples 2 continue to move to the end of the horizontal feeding section 5, they will fall from the feeding conveyor belt onto the channel plate 24 and will reach the release platform as the channel plate 24 tilts and rotates. When the samples 2 fall onto the channel plate 24, the photoelectric photoelectric switch 19 above the channel plate 24 will detect a signal. Therefore, under the trigger of this signal, the rotation power mechanism 32 will drive the channel plate 24 to rotate toward the release platform (with the mounting rod of the channel plate 24 as the rotation axis; after rotation, it will automatically reset) so that the samples 2 reach the release platform. Then, the centering power mechanism 21 will first drive the two push plates 22 on the release platform. At a specified time (set in the control mechanism, the specific time after the photoelectric beam switch detects the signal, i.e., the time when the push plate should move), the two moving platforms 23 of the release platform simultaneously move relative to each other to center the sample 2 that has arrived at the release platform. Then, the opening and closing power mechanism 26 drives the two moving platforms 23 of the release platform to move away from each other at the specified time to release the sample 2. After the sample 2 is released, the opening and closing power mechanism 26 drives the two moving platforms 23 to move relative to each other to reset. The released sample 2 falls onto the receiving platform 27, and then (again triggered by the signal detected by the photoelectric beam switch 19), the unloading power mechanism 29 drives the unloading plate 28 to slide on the receiving platform 27 to push the sample 2 to open the opening and closing baffle 8 and fall into the receiving box 7. Based on the above process, this experimental device can realize the continuous drop and collection of multiple samples 2 after the drop.

[0039] If the drop height needs to be changed, the lifting power mechanism 9 can be activated to cause the horizontal feeding section 5 of the feeding conveyor belt and the drop release mechanism to move vertically accordingly; please refer to Figure 5 As the horizontal feeding section 5 rises and falls, the inclined feeding section 1 will move horizontally accordingly under the action of the steering roller 18 and the tension spring assembly, so as to maintain the dynamic balance of the overall structure (at this time, the position of the storage box or the action parameters of the feeding component can be adjusted simultaneously to ensure the normal feeding process).

[0040] Example 2

[0041] This embodiment provides a continuous drop test device for plastic packaging products. Please refer to [reference needed]. Figures 6 to 7 Compared to Embodiment 1, the difference lies in the inclusion of a visual inspection mechanism, which is communicatively connected to the control mechanism and located on one side of the drop receiving mechanism. Specifically:

[0042] The visual inspection mechanism includes a column 31 and an industrial camera 30. The industrial camera 30 is mounted on the column 31 (in some embodiments, the industrial camera 30 may be height-adjustable and / or have an adjustable shooting angle) and is configured to photograph the sample 2 on the surface of the receiving platform 27. Correspondingly, the unloading plates in this embodiment include a good product unloading plate and a bad product unloading plate. The good product unloading plate and the bad product unloading plate are distributed in an L-shape on the receiving platform and do not contact each other. The good product unloading plate and the bad product unloading plate are respectively connected to the output end of the corresponding unloading power mechanism 29. At the bottom position of the two surfaces of the protective cover 6 facing the good product unloading plate and the bad product unloading plate, there is an opening and closing baffle. The outer sides of the two opening and closing baffles are respectively provided with a good product receiving box and a bad product receiving box.

[0043] Based on the above structure, the testing device provided in this embodiment operates as follows (the parts identical to those in Embodiment 1 will not be repeated): When sample 2 falls onto the surface of the receiving platform 27, the industrial camera 30 automatically captures a state image of sample 2 (triggered by the signal detected by the photoelectric beam switch 19) and performs identification and analysis to determine whether the packaging of sample 2 has defects such as breakage or deformation, thereby initially classifying sample 2 into good or bad products; according to the classification result, the corresponding unloading power mechanism 29 drives the good product unloading plate or the bad product unloading plate to move, so as to send sample 2 into the good product receiving box or the bad product receiving box. Based on this, this testing device can complete the initial sorting of good and bad products when receiving sample 2, thereby saving the workload of subsequent detailed sorting and other processes, and thus effectively improving work efficiency.

[0044] It should be noted that parts not described in detail or elaborated in the above scheme, such as the specific control principle of the control mechanism, the specific structural settings and principles of each power mechanism, etc., are all existing technologies and do not constitute improvements made by this utility model to existing technologies, nor are they within the protection scope of this utility model's technical solution. Therefore, they will not be elaborated upon here. Of course, the above content is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. Those skilled in the art can directly apply existing mature mechanical structures or technical means to achieve certain further functions based on this embodiment, such as changing the drop angle of the sample by a robotic arm before releasing it. This utility model is not limited to the above examples. Equivalent changes and improvements made by those skilled in the art within the substantial scope of this utility model should all be attributed to the patent coverage of this utility model.

Claims

1. A continuous drop test device for plastic packaging products, characterized in that: It includes a control mechanism, a feeding mechanism, a drop release mechanism, and a drop receiving mechanism. The feeding mechanism, drop release mechanism, and drop receiving mechanism are respectively connected to the control mechanism. The feeding mechanism includes a feeding conveyor belt, which includes an inclined feeding section (1) and a horizontal feeding section (5) connected to each other. The height of the inclined feeding section (1) is lower than the height of the horizontal feeding section (5). The drop release mechanism is located on one side of the end of the horizontal feeding section (5), and the drop receiving mechanism is located below the drop release mechanism.

2. The continuous drop test device for plastic packaging products according to claim 1, characterized in that: The feeding mechanism also includes a storage box and a feeding component, which are located on one side of the first end of the inclined feeding section (1).

3. The continuous drop test device for plastic packaging products according to claim 1, characterized in that: The surface of the feeding conveyor belt is provided with a number of baffles (3) evenly arranged at intervals, and each baffle (3) is provided with a limiting protrusion (4) on the front side along the conveying direction.

4. The continuous drop test apparatus for plastic packaging products according to claim 3, characterized in that: The drop release mechanism includes a channel plate (24) and a release platform. One side of the channel plate (24) is the end of the horizontal feeding section (5), and the other side is the release platform. The channel plate (24) is rotatably located on one side of the release platform with an inclined structure from high to low. The channel plate (24) and the baffle (3) are set as a corresponding staggered structure. The release platform includes two symmetrical movable platforms (23). The two movable platforms (23) are configured to move closer or further apart under the drive of a corresponding opening and closing power mechanism (26).

5. The continuous drop test device for plastic packaging products according to claim 4, characterized in that: The other side of the release platform is provided with an anti-fall plate (25), and a trigger switch is provided above the channel plate (24).

6. The continuous drop test apparatus for plastic packaging products according to claim 4, characterized in that: Each of the two movable platforms (23) is provided with a centering component above it. The centering component includes a centering power mechanism (21) and a push plate (22). The push plate (22) is connected to the output end of the centering power mechanism (21).

7. The continuous drop test apparatus for plastic packaging products according to claim 1, characterized in that: The drop receiving mechanism includes a receiving platform (27), a protective cover (6), a feeding plate (28), and a receiving box (7). The protective cover (6) covers the receiving platform (27). The feeding plate (28) is located at one edge of the receiving platform (27) and inside the protective cover (6). The feeding plate (28) is configured to push the material into the receiving box (7) under the drive of the corresponding feeding power mechanism (29). An opening and closing baffle (8) is provided at the bottom of the surface of the protective cover (6) opposite to the feeding plate (28). The upper edge of the opening and closing baffle (8) is hinged to the surface of the protective cover (6). The receiving box (7) is provided on one side of the receiving platform (27) outside the opening and closing baffle (8).

8. The continuous drop test apparatus for plastic packaging products according to claim 7, characterized in that: It also includes a vision inspection mechanism that is communicatively connected to the control mechanism and is located on one side of the drop receiving mechanism; the vision inspection mechanism includes a column (31) and an industrial camera (30) located on the column (31) and configured to photograph the material on the surface of the receiving platform (27).

9. The continuous drop test apparatus for plastic packaging products according to claim 8, characterized in that: The feeding plate includes a good product feeding plate and a bad product feeding plate, and the receiving box includes a good product receiving box and a bad product receiving box; the good product feeding plate and the bad product feeding plate are distributed in an "L" shape on the receiving platform (27) and do not contact each other; the good product feeding plate and the bad product feeding plate are configured to push the good product material and the bad product material into the good product receiving box and the bad product receiving box respectively under the drive of the corresponding feeding power mechanism (29).

10. The continuous drop test apparatus for plastic packaging products according to claim 1, characterized in that: The feeding mechanism also includes a lifting drive part, which includes a lifting power mechanism (9) and a follow-up translation mechanism; the output end of the lifting power mechanism (9) is connected to the horizontal feeding section (5); the follow-up translation mechanism includes a steering roller (18) and a tension spring assembly, the steering roller (18) is disposed inside the connection between the inclined feeding section (1) and the horizontal feeding section (5) and the steering roller (18) is connected to the output end of the lifting power mechanism (9), and the tension spring assembly is connected to the beginning end of the inclined feeding section (1).

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