Packaging film size detection device
By installing guide plates and mounting rods on the conveyor belt, the problem of packaging film wrinkles during unwinding is solved, and more accurate size measurement is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-03
AI Technical Summary
Existing packaging film size detection devices often result in inaccurate measurement results due to wrinkles in the packaging film caused by friction and traction during the unwinding process.
A packaging film size detection device was designed. A guide plate and a mounting rod were set on a conveyor belt. The guide plate has a guide slope to flatten the packaging film and avoid wrinkles. The position of the guide plate can be adjusted by a pin and an adjustment hole to accommodate films of different thicknesses.
This improves the accuracy of packaging film size detection, ensures the accuracy of measurement results, and avoids measurement errors caused by wrinkles.
Smart Images

Figure CN224076748U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging film testing technology, specifically a packaging film size testing device. Background Technology
[0002] Packaging film is a flexible thin film material used to wrap, cover, or seal items. Through physical protection, functional isolation, or decorative design, it meets the protection and display needs of goods during storage, transportation, sales, and use. The size measurement of packaging film is a crucial part of quality control in the packaging industry. Accurate size measurement not only ensures the compatibility of the packaging film with the product or packaging container, but also avoids material waste, improves production efficiency, and guarantees packaging effectiveness. Packaging film size measurement plays an irreplaceable role in the entire chain of production, processing, application, and quality control.
[0003] Existing packaging film size detection devices typically consist of an unwinding device and a measuring device. The unwinding device continuously unwinds the packaging film, and the measuring device records the unwound packaging film. During the unwinding process, the packaging film is unwound at a uniform speed, so the measuring device only needs to record the packaging film for a fixed period of time. Finally, the total length of the packaging film is obtained by multiplying the number of cycles by the length of a single segment of the packaging film.
[0004] Although the above-mentioned device completes the size measurement of the packaging film, the total length of the packaging film is usually designed to be relatively long in order to improve the utilization rate of the packaging film. As a result, when the long packaging film is unwound, due to the influence of friction and traction, wrinkles may appear in the packaging film. However, the wrinkled packaging film will partially overlap, which will lead to inaccurate measurement results when measuring the length of the packaging film. It is necessary to provide a packaging film size detection device to solve the above problems.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content
[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a packaging film size detection device, which solves the problem that packaging film wrinkles are caused by the inability of packaging film size measuring equipment to intervene in the unwinding of packaging film.
[0007] The technical solution adopted by this application to solve its technical problem is: a packaging film size detection device, comprising: a base plate, on the bottom of which a support leg is fixedly installed; a first vertical rod, fixedly installed on one side of the base plate, with a unwinding roller rotatably mounted on one side of the first vertical rod via a bearing; a second vertical rod, fixedly installed on the other side of the base plate, with a motor fixedly installed on one side of the second vertical rod, the output end of which passes through the second vertical rod and is fixedly installed with a take-up roller; a support base, fixedly installed on the base plate, with a measuring camera fixedly installed on one side of the support base; and a transmission device, disposed on the top of the base plate. The transmission device includes two sets of side plates fixedly installed on the top of the base plate, with a conveyor belt between the two sets of side plates; at least two sets of mounting rods, each mounted on the conveyor belt, with fixing blocks fixedly installed on both sides of the mounting rods, and the bottom of the fixing blocks fixedly connected to the side plates; a guide plate, rotatably sleeved on the mounting rods, with the bottom of the guide plate close to the top of the conveyor belt; at least two sets of adjusting holes, each opening on the side of the guide plate close to the fixing block, with corresponding insertion holes on the fixing block; and a pin, inserted into the insertion hole, with the other side of the pin inserted into the adjusting hole.
[0008] Furthermore, a side hole is provided on the side of the guide plate near the fixing block.
[0009] Furthermore, the conveyor belt is marked, and mounting plates are fixedly installed on both sides of the fixing block. Locking bolts are threaded onto the mounting plates and are threaded onto the side plates.
[0010] Furthermore, a drive device is fixedly installed on one side of the side plate. The output end of the drive device passes through the side plate on one side and is fixedly connected to a drive shaft. The other side of the drive shaft is rotatably connected to the side plate on the other side through a bearing. An auxiliary shaft is provided on the other side of the drive shaft. Both sides of the auxiliary shaft are rotatably connected to the side plate through bearings. Pulleys are fixedly installed on the surfaces of both the drive shaft and the auxiliary shaft. The conveyor belt is sleeved on the pulleys.
[0011] Furthermore, a guide roller is rotatably mounted on one side of the first vertical rod, and the guide roller is located below the unwinding roller.
[0012] Furthermore, at least two sets of omnidirectional wheels are fixedly installed at the bottom of the support leg.
[0013] The beneficial effects of this application are as follows: The packaging film size detection device provided by this application is equipped with an installation rod and a guide plate, and a guide slope is provided on the guide plate. When the packaging film is unwound, the film will pass through the guide slope in sequence for transmission. The guide slope flattens the film and avoids the problem of wrinkles in the packaging film, thereby improving the accuracy of packaging film size detection.
[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 This is an overall schematic diagram of a packaging film size detection device according to this application;
[0017] Figure 2 for Figure 1 Side view of the overall structure;
[0018] Figure 3 for Figure 1 Enlarged view of the structure of region A in the middle;
[0019] Figure 4 for Figure 3 Enlarged view of the structure of region B in the middle.
[0020] The following are the labeling elements in the figure:
[0021] 1. Support leg; 2. Base plate; 3. Casters; 4. Side plate; 41. Drive unit; 42. Conveyor belt; 5. First vertical rod; 51. Unwinding roller; 52. Guide roller; 6. Second vertical rod; 61. Motor; 62. Rewinding roller; 7. Support base; 71. Measuring camera; 8. Fixing block; 81. Mounting rod; 82. Guide plate; 821. Adjustment hole; 822. Side hole; 83. Pin; 84. Mounting plate; 85. Locking bolt. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0024] like Figures 1-2 As shown, this application provides a packaging film size detection device, including a support leg 1, which is a support part to ensure film size measurement. A base plate 2 is fixedly installed on the top of the support leg 1. The packaging film size measurement operation is performed on the base plate 2. At the same time, at least two sets of universal wheels 3 are fixedly installed on the bottom of the support leg 1. The universal wheels 3 facilitate the movement of the support leg 1 and the base plate 2.
[0025] A first vertical rod 5 is fixedly installed on one side of the base plate 2. A unwinding roller 51 is rotatably installed on one side of the first vertical rod 5 via a bearing. Normally, the packaging film that needs to be measured is wound onto the unwinding roller 51. A guide roller 52 is also rotatably installed on one side of the first vertical rod 5. The guide roller 52 guides the packaging film. The guide roller 52 is located below the unwinding roller 51. The packaging film unwound from the unwinding roller 51 is suitable for passing through the guide roller 52 to determine its unwinding direction and position.
[0026] A second vertical rod 6 is fixedly installed on the other side of the base plate 2. A motor 61 is fixedly installed on one side of the second vertical rod 6. The output end of the motor 61 passes through the second vertical rod 6 and a winding roller 62 is fixedly installed thereon. The winding roller 62 is mainly used to wind up the packaging film after measurement, while the motor 61 plays a driving role in the winding and unwinding of the packaging film.
[0027] like Figure 1 , Figure 3 As shown, a transmission device is provided on the top of the base plate 2. The transmission device is located between the first vertical rod 5 and the second vertical rod 6. The transmission device includes two sets of side plates 4 fixedly installed on the top of the base plate 2. A drive device 41 is fixedly installed on one side of one set of side plates 4. In this embodiment, the drive device 41 is a prior art motor. The output end of the drive device 41 passes through the set of side plates 4 and is fixedly connected to a drive shaft. The other side of the drive shaft is rotatably connected to the other set of side plates 4 through a bearing, so that when the drive device 41 is started, it is suitable to drive the drive shaft to rotate.
[0028] An auxiliary shaft is provided on the other side of the rotating shaft. Both sides of the auxiliary shaft are rotatably connected to the side plate 4 via bearings. Pulleys are fixedly installed on the surfaces of the auxiliary shaft and the transmission shaft. A conveyor belt 42 is fitted on the pulleys. When the transmission shaft rotates under the drive of the drive device 41, the pulleys will rotate synchronously, which will drive the auxiliary shaft and the conveyor belt 42 to rotate synchronously. The drive device 41, the transmission shaft, the auxiliary shaft and the conveyor belt 42 are existing pulley conveying mechanisms, which play the role of conveying the packaging film. The packaging film unwound by the unwinding roller 51 first passes through the guide roller 52, then reaches the conveyor belt 42, and finally is wound up on the winding roller 62, thus completing the unwinding, unfolding and rewinding of the packaging film. In this process, the drive device 41 and the motor 61 play the main driving role.
[0029] Continue to refer to Figures 1-2 A support base 7 is fixedly installed on one side of the base plate 2, and a measuring camera 71 is fixedly installed on one side of the top of the support base 7. The measuring camera 71 is located on the side of the conveyor belt 42 near the take-up roller 62. The measuring camera 71 records the process of unwinding, unfolding and rewinding the packaging film. At the same time, a mark is set on the conveyor belt 42. Before the measurement operation starts, the packaging film needs to be unwound from the unwinding roller 51 and pass through the guide roller 52, the conveyor belt 42 and the take-up roller 62 in sequence. The packaging film needs to be wound at least two turns on the take-up roller 62 in order to determine the unwinding and rewinding route and stability of the packaging film.
[0030] The mark on the conveyor belt 42 is then adjusted to the bottom of the measuring camera 71. During the subsequent measurement process, the measuring camera 71 records and accumulates the data whenever the mark rotates to the bottom of the measuring camera 71. After the measurement is completed, the length of most of the packaging film can be obtained by multiplying the number of times the mark passes the bottom of the measuring camera 71 by the length of the conveyor belt 42. The pre-unwinding and tail dimensions of the packaging film can be measured manually separately.
[0031] However, during the unwinding measurement of the packaging film, as the film passes through conveyor belt 42, it may experience stacking and wrinkling due to friction and traction. To solve this problem, such as... Figures 3-4 As shown, at least two sets of fixing blocks 8 are provided on the top of the side plate 4. Mounting plates 84 are fixedly installed on both sides of the fixing blocks 8. Locking bolts 85 are threadedly connected to the mounting plates 84. The locking bolts 85 are threadedly connected to the side plate 4. In the working state, the fixing blocks 8 are fixedly connected by the locking bolts 85. When it is necessary to disassemble them, simply loosen the locking bolts 85 and then remove the fixing blocks 8 from the side plate 4.
[0032] An installation rod 81 is fixedly installed between the fixed blocks 8. A guide plate 82 is rotatably sleeved on the installation rod 81. The bottom of the guide plate 82 is close to the conveyor belt 42. At least two sets of adjustment holes 821 are opened on the side of the guide plate 82 near the side plate 4. At the same time, the fixed block 8 is provided with a corresponding insertion hole for the adjustment hole 821. A pin 83 is inserted into the insertion hole. The other side of the pin 83 is inserted into the adjustment hole 821. The guide plate 82 can be limited by the pin 83.
[0033] Understandably, the distance between the bottom of the guide plate 82 and the top of the conveyor belt 42 is the distance that the packaging film can pass through, which limits the thickness of the packaging film. When the packaging film is unwound, the pre-tension of the packaging film needs to be set. When the packaging film reaches the conveyor belt 42, it first contacts the bottom of the guide plate 82, so that the guide plate 82 plays a flattening role for the packaging film. During the conveying process, the guide plate 82 closest to the guide roller 52 plays the main flattening role, while the other guide plates 82 play a secondary flattening role when the packaging film is on the conveyor belt 42, ensuring that the packaging film does not wrinkle when it is on the conveyor belt 42.
[0034] Continue to refer to Figure 4 When measuring the unwinding of packaging films of varying thicknesses, such as Figure 4 As shown, in the initial state, the pin 83 is inserted into the adjustment hole 821 located in the middle. When encountering a slightly thicker guide plate 82, the pin 83 can be pulled out, and then the guide plate 82 can be rotated counterclockwise so that the bottom of the guide plate 82 rotates counterclockwise synchronously. The distance between the bottom of the guide plate 82 and the conveyor belt 42 increases, making it easier for thicker packaging films to pass through. Then the pin 83 can be removed and inserted into the corresponding adjustment hole 821. Conversely, if it is necessary to facilitate the passage of slightly thinner packaging films, the guide plate 82 needs to be adjusted by rotating it clockwise.
[0035] Furthermore, after prolonged use, the bottom of the guide plate 82 may wear out, requiring maintenance. A side hole 822 is provided on the side of the guide plate 82 near the fixing block 8. When it is necessary to lift the bottom of the guide plate 82 for maintenance, firstly, the pin 83 needs to be removed from the adjustment hole 821. Then, the guide plate 82 is rotated counterclockwise until the side hole 822 is aligned with the insertion hole. Then, the pin 83 is inserted into the side hole 822 to fix the guide plate 82. When the side hole 822 is rotated counterclockwise to correspond to the insertion hole, the guide plate 82 has changed from a vertical state to a horizontal state, which facilitates maintenance of the bottom of the guide plate 82.
[0036] In summary, when measuring packaging film, the guide plate 82 can be used to smooth the packaging film and prevent wrinkles. Secondly, the guide plate 82 can be finely adjusted to accommodate packaging film of different thicknesses. Finally, the guide plate 82 can be rotated from a vertical position to a horizontal position to facilitate regular maintenance of the guide plate 82.
[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A packaging film size detection apparatus characterized by comprising: Include: The bottom of the bottom plate (2) is fixedly installed with support legs (1); The first vertical rod (5) is fixedly installed on one side of the bottom plate (2), and one side of the first vertical rod (5) is rotatably installed with a unwinding roller (51) through a bearing; The second vertical rod (6) is fixedly installed on the other side of the bottom plate (2), and one side of the second vertical rod (6) is fixedly installed with a motor (61), and the output end of the motor (61) penetrates the second vertical rod (6) and is fixedly installed with a winding roller (62); The support seat (7) is fixedly installed on the bottom plate (2), and one side of the support seat (7) is fixedly installed with a measuring camera (71); The transmission device is arranged on the top of the bottom plate (2), and the transmission device is arranged on the top of the bottom plate (2). Two groups of side plates (4) are fixedly installed on the top of the bottom plate (2), and a conveyor belt (42) is arranged between the two groups of side plates (4); At least two groups of mounting rods (81) are arranged on the conveyor belt (42), and the two sides of the mounting rod (81) are fixedly installed with a fixed block (8), and the bottom of the fixed block (8) is fixedly connected with the side plate (4); The guide piece (82) is rotatably sleeved on the mounting rod (81), and the bottom of the guide piece (82) is close to the top of the conveyor belt (42); At least two groups of adjusting holes (821) are arranged on one side of the guide piece (82) close to the fixed block (8), and the fixed block (8) is provided with a insertion hole corresponding to the adjusting hole (821); The insertion hole is inserted into the insertion hole, and the other side of the insertion hole is inserted into the insertion hole.
2. The packaging film size detection device according to claim 1, characterized in that: The side hole (822) is also arranged on one side of the guide piece (82) close to the fixed block (8).
3. The package film size detection apparatus according to claim 2, characterized by: The conveyor belt (42) is provided with a mark, and the two sides of the fixed block (8) are fixedly installed with a mounting piece (84), and the mounting piece (84) is threadedly connected with a locking bolt (85), and the locking bolt (85) is threadedly connected with the side plate (4).
4. The package film size detection apparatus according to claim 3, wherein: One side of the side plate (4) is fixedly installed with a driving device (41), the output end of the driving device (41) penetrates one side of the side plate (4) and is fixedly connected with a transmission shaft, the other side of the transmission shaft is rotatably connected with the other side of the side plate (4) through a bearing, the other side of the transmission shaft is provided with an auxiliary shaft, the two sides of the auxiliary shaft are rotatably connected with the side plate (4), and the surfaces of the transmission shaft and the auxiliary shaft are fixedly installed with belt pulleys, and the conveyor belt (42) is sleeved on the belt pulleys.
5. The package film size detection apparatus according to claim 4, wherein: One side of the first vertical rod (5) is rotatably provided with a guide roller (52), and the guide roller (52) is located below the unwinding roller (51).
6. The package film size detection apparatus according to claim 5, wherein: The bottom of the support leg (1) is fixedly installed with at least two groups of universal wheels (3).