Film printing detection device
By introducing a speed sensor into the film printing inspection device to control the frequency of the strobe lamp and the background plate reference, and combining it with the automated inspection of the camera component, the problems of low efficiency and insufficient accuracy of strobe lamp adjustment in the existing technology are solved, and efficient and accurate film printing quality monitoring is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINGYAN PACKAGING TECHNOLOGY CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-05
AI Technical Summary
Existing thin film printing inspection devices are inefficient when adjusting the position and frequency of the strobe lamp, and the lack of a background plate leads to recognition errors, affecting the accuracy and efficiency of the inspection.
A thin film printing inspection device was designed, comprising a frame, a fixing plate, strobe lights, a sensing component, and a camera component. The speed sensor detects the film speed and controls the frequency of the strobe lights. Combined with a background plate, a reference background color and scale lines are provided, and the camera component performs automated inspection.
It achieves efficient and accurate monitoring of film printing quality, reduces operation steps, improves detection accuracy and automation, and has a wide range of applications.
Smart Images

Figure CN224203054U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thin film testing technology, and in particular to a thin film printing testing device. Background Technology
[0002] After printing, the film rolls need to be inspected online to monitor the printing quality in a timely manner, avoid continuous production of defective products, reduce losses, and improve production stability. Since the film rolls are dynamic during the transport process, they cannot be observed directly with the naked eye and require auxiliary inspection through a detection device with strobe function.
[0003] Patent document CN217084727U discloses a composite film printing inspection device for food composite packaging bags, including a frame, two sliding rods, and a strobe light inspection mechanism. Each end of the frame is vertically fixed with a plate, and the side of each plate has a first sliding groove. The plates have first elongated holes on both sides of the first sliding groove. One end of each sliding rod has a first connecting block. Two first bolts are mounted on the first connecting blocks, and the ends of the first bolts are fitted with first nuts. The opposing sides of the two sliding rods have horizontally arranged second sliding grooves, and the upper and lower sides of the second sliding grooves also have second elongated holes. The strobe light inspection mechanism includes a support shaft and a strobe light. The support shaft has second connecting blocks at both ends, and two second bolts are mounted on each second connecting block, with second nuts at the ends of the second bolts. The strobe light is mounted on the support shaft. This invention allows for vertical and horizontal adjustment of the strobe light position, facilitating the inspection of the printing quality of the composite film by operators.
[0004] In the above scheme, the detection device improves the detection effect by adjusting the position of the strobe light. However, this operation requires multiple adjustments to find the appropriate position and also requires adjusting the light frequency of the strobe light, resulting in low operation efficiency and room for improvement in accuracy. In addition, the device does not have a background plate, which can easily lead to identification errors. Therefore, it is necessary to provide a film printing detection device to overcome the shortcomings of the existing technology. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a thin film printing inspection device.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] A film printing inspection device includes a frame, a fixing plate, a fixing rod 1, and a fixing rod 2 in the middle of the frame. The two ends of the fixing plate, fixing rod 1, and fixing rod 2 are fixedly connected to the frame. The fixing rod 2 is located in front of the fixing rod 1. A background plate is installed in the middle of the front of the fixing plate. A light plate is installed in the middle of the background plate. A strobe light is installed in the middle of the fixing rod 1. A sensing component is installed in the middle of the fixing rod 2. The background plate provides backlighting and a reference background color for the passing film. The sensing component senses the speed of the passing film. The strobe light emits a strobe light on the passing film, thereby facilitating the monitoring of the film.
[0008] The sensing component includes a moving block 1, a locking knob 1, an adjusting block 1, a speed sensor, and a limiting bolt 1. The moving block is mounted on a fixed rod 2. The locking knob 1 is installed at the bottom of the moving block 1 and locks the moving block 1 onto the fixed rod 2. One side of the adjusting block 1 abuts against one side of the moving block 1. The adjusting block 1 has a sliding groove 1 on its side. The limiting bolt 1 is installed on the side of the moving block 1 and locks the adjusting block 1 onto its side by passing through the sliding groove 1. The speed sensor is mounted on the adjusting block 1, and the output end of the speed sensor faces the thin film.
[0009] The present invention is further configured such that a controller is provided on one side of the frame, and the controller is electrically connected to the strobe light and the speed sensor respectively.
[0010] The present invention is further configured such that a guide roller 1 is provided above the fixed plate and a guide roller 2 is provided below the fixed plate. Both ends of the guide roller 1 and the guide roller 2 are movably connected to the frame. One end of the guide roller 1 is connected to the output end of the motor 1, and one end of the guide roller 2 is connected to the output end of the motor 2. The motor 1 and the motor 2 are located inside the frame and are driven to rotate by the motor 1 and the motor 2 respectively.
[0011] The present invention is further configured such that the top of the strobe light is inserted through the fixing rod, and the top of the strobe light is provided with a locking knob, which locks the strobe light onto the fixing rod.
[0012] The present invention is further configured such that the strobe light has a lamp assembly on the front, a heat dissipation hole 1, a connection socket and a switch on the back, and a heat dissipation hole 2 on the side.
[0013] The present invention is further configured such that scale lines are arranged in an array on the surface of the lamp panel.
[0014] The present invention is further provided with a horizontal plate below the background plate, the two ends of the horizontal plate being fixedly connected to the frame, and an anti-static brush being provided on the horizontal plate.
[0015] The present invention is further configured such that a camera component is provided on the second fixed rod, and the camera component is electrically connected to the controller.
[0016] The present invention is further configured such that the camera assembly includes a second movable block, a third locking knob, a second adjusting block, a camera, and a second limiting bolt. The second movable block is sleeved on the second fixed rod. The second locking knob is installed at the bottom of the second movable block, and the second locking knob locks the second movable block onto the second fixed rod. One side of the second adjusting block abuts against one side of the second movable block. The second adjusting block has a second sliding groove on its side. The second limiting bolt is installed on the side of the second movable block, and the second limiting bolt passes through the second sliding groove to lock the second adjusting block onto its side. The camera is installed on the second adjusting block, and the camera output end faces the film.
[0017] In summary, this utility model has the following beneficial effects:
[0018] 1. This invention uses a speed sensor to detect the moving speed of the thin film, transmits the detected data signal to the controller, the controller records and calculates the data, and sends a signal to the strobe light. The strobe light then emits a flashing light at a corresponding frequency according to the signal from the controller. This eliminates the need for repeated adjustments to the strobe light frequency, resulting in high operational efficiency. Furthermore, the thin film illuminated by the strobe light can be photographed by a camera in the imaging component. The image data captured by the camera is transmitted to the controller, which detects the image data. If an error is found in the image data, an alarm is issued. This process is more automated and has higher detection accuracy.
[0019] 2. This utility model is provided with a background plate, which can provide a reference background color. A light plate is provided in the middle of the background plate, which can provide supplemental light to the back of the film, making it easy to observe and detect. At the same time, the surface of the light plate is arranged with scale lines to detect whether the film printing is off-center and whether the film itself is off-center.
[0020] 3. The positions of the sensing component, camera component, and strobe light of this utility model can all be adjusted by translation and rotation, which can adapt to more products, has a wide range of applications, and is highly practical. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model.
[0022] Figure 2 This is a front view of the sensing component of this utility model.
[0023] Figure 3 This is a side view of the sensing component of this utility model.
[0024] Figure 4 This is a schematic diagram of the back of the strobe lamp of this utility model.
[0025] Figure 5 This is a side view of the strobe lamp of this utility model.
[0026] Figure 6This is a front view of the sensing component and camera component on the fixed rod of this utility model.
[0027] In the diagram, 1. Frame, 2. Fixing plate, 3. Fixing rod one, 4. Fixing rod two, 5. Background plate, 6. Light board, 7. Strobe light, 8. Sensing component, 801. Moving block one, 802. Locking knob one, 803. Adjusting block one, 804. Speed sensor, 805. Limit bolt one, 9. Camera component, 10. Film, 11. Controller, 12. Guide roller one, 13. Guide roller two, 14. Locking knob two, 15. Heat dissipation hole one, 16. Connection socket, 17. Switch, 18. Heat dissipation hole two, 19. Scale line, 20. Horizontal plate, 21. Antistatic brush. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0029] Example 1:
[0030] In this embodiment, as Figure 1-5 As shown, the present invention proposes a film printing inspection device, including a frame 1, a fixing plate 2, a fixing rod 1 3 and a fixing rod 2 4 in the middle of the frame, both ends of the fixing plate, fixing rod 1 and fixing rod 2 are fixedly connected to the frame, fixing rod 2 is located in front of fixing rod 1, a background plate 5 is installed in the middle of the front of the fixing plate, a light plate 6 is installed in the middle of the background plate, a strobe light 7 is installed in the middle of fixing rod 1, and a sensing component 8 is installed in the middle of fixing rod 2. The background plate provides backlighting and a reference background color for the passing film 10, the sensing component senses the speed of the passing film, and the strobe light emits strobe light on the passing film, thereby facilitating the monitoring of the film.
[0031] The sensing component includes a moving block 801, a locking knob 802, an adjusting block 803, a speed sensor 804, and a limiting bolt 805. The speed sensor is an existing product and technology that can be purchased directly from the market and will not be described in detail here. The moving block is mounted on the fixed rod 2. The locking knob 1 is installed at the bottom of the moving block 1 and locks the moving block 1 onto the fixed rod 2. One side of the adjusting block 1 abuts against one side of the moving block 1. The side of the adjusting block 1 is provided with a sliding groove 1. The limiting bolt 1 is installed on the side of the moving block 1 and locks the adjusting block 1 onto the side of the moving block 1 by passing through the sliding groove 1. The speed sensor is mounted on the adjusting block 1, and the output end of the speed sensor faces the film.
[0032] In this example, under normal conditions, the moving block can be moved. The position of the moving block is adjusted according to the width of the film. When it is moved to a suitable position, the moving block is locked by locking knob one. The position of adjusting block one is moved back and forth so that the speed sensor is in a suitable position. The position of adjusting block one is fixed by limiting bolt one, thereby locking the position of the speed sensor.
[0033] In this embodiment, a controller 11 is further provided on one side of the frame, and the controller is electrically connected to the strobe light and the speed sensor respectively.
[0034] In this example, the moving speed of the film is detected by a speed sensor, and the detected data signal is transmitted to the controller. The controller records and calculates the data and sends a signal to the strobe lamp. The strobe lamp then emits a strobe light at a corresponding frequency according to the signal given by the controller. There is no need to repeatedly adjust the light frequency of the strobe lamp, which improves the efficiency and accuracy of the operation. The film illuminated by the strobe lamp can be observed with the naked eye, thereby monitoring the printing quality of the film.
[0035] In this embodiment, the device is further configured such that a guide roller 12 is provided above the fixed plate, and a guide roller 23 is provided below the fixed plate. Both ends of the guide roller 1 and the guide roller 2 are movably connected to the frame. One end of the guide roller 1 is connected to the output end of the motor 1, and one end of the guide roller 2 is connected to the output end of the motor 2. The motor 1 and the motor 2 are located inside the frame. The motor 1 and the motor 2 are conventional drive devices and are not shown in the figure. The motor 1 and the motor 2 drive the guide roller 1 and the guide roller 2 to rotate accordingly.
[0036] In this example, the film is input from below the second guide roller and output from above the first guide roller. The film is pulled and tensioned by the first and second guide rollers. The film is in a vertically tensioned state when it passes the light board. Since the printing equipment is existing technology, it will not be described in detail. The film is always kept in a tensioned state during the printing process.
[0037] In this embodiment, the top of the strobe light is mounted on the first fixing rod, and the top of the strobe light is provided with a second locking knob 14, which locks the strobe light onto the first fixing rod.
[0038] In this example, the strobe light can move horizontally on the fixed rod and rotate around the fixed rod when it is in a relaxed state. In order not to obstruct the observation, the strobe light is set above the background board and tilted. When the strobe light is adjusted to a suitable angle and position, the locking knob two is locked, and the strobe light cannot move or rotate. If the strobe light does not need to move and the conditions are suitable, the locking knob two can also be removed to fix the strobe light to the fixed rod.
[0039] The present invention is further configured such that the front of the strobe light is provided with a light group (not shown in the figure, the light group is prior art), the back of the strobe light is provided with a heat dissipation hole 15, a connection socket 16 and a switch 17, and the side of the strobe light is provided with a heat dissipation hole 28.
[0040] In this example, the strobe light and the controller are connected by inserting a data cable into the connection jack to transmit signals. The strobe light is turned on and off by switching it on and off. Since the light group has a lot of LEDs, it is easy to generate a lot of heat during long-term operation. Heat dissipation holes one and two are used to dissipate heat from the strobe light.
[0041] In this embodiment, the surface of the lamp board is further configured with an array of scale lines 19, which can detect whether the film printing is misaligned and whether the film itself is misaligned.
[0042] In this embodiment, a horizontal plate 20 is provided below the background plate, and the two ends of the horizontal plate are fixedly connected to the frame. An antistatic brush 21 is provided on the horizontal plate. The antistatic brush is used to remove static electricity and dust from the surface of the film to avoid affecting the detection effect.
[0043] Example 2:
[0044] In this embodiment, as Figure 1-6 As shown, a camera component 9 is added based on embodiment 1. The camera component is sleeved on the fixed rod 2 and is electrically connected to the controller.
[0045] In this embodiment, the camera assembly is further configured to include a second movable block, a third locking knob, a second adjusting block, a camera, and a second limiting bolt. The second movable block is sleeved on the second fixed rod. The second locking knob is installed at the bottom of the second movable block, and the second locking knob locks the second movable block onto the second fixed rod. One side of the second adjusting block abuts against one side of the second movable block. The second adjusting block has a second sliding groove on its side. The second limiting bolt is installed on the side of the second movable block, and the second limiting bolt passes through the second sliding groove to lock the second adjusting block onto the side of the second movable block. The camera is installed on the second adjusting block, and the camera output end faces the film.
[0046] In this example, the camera component is installed and moved in the same way as the sensor component. The camera needs to be tilted for better shooting effect. If necessary, a fixing rod three can be set up to mount the camera component on the fixing rod three, so that the camera can shoot the film in the forward direction.
[0047] In this example, the moving speed of the thin film is detected by a speed sensor, and the detected data signal is transmitted to the controller. The controller records and calculates the data and sends a signal to the strobe light. The strobe light then emits a flashing light at the corresponding frequency according to the signal given by the controller. This eliminates the need for repeated adjustments to the light frequency of the strobe light, resulting in high operational efficiency and accuracy. Furthermore, the thin film illuminated by the strobe light can be photographed by the camera of the imaging component. The image data captured by the camera is transmitted to the controller, which detects the image data. If an error is found in the image data, an alarm is issued. This process is more automated and has higher detection accuracy.
[0048] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A film printing inspection device, comprising a frame, characterized in that, The frame has a fixed plate, a fixed rod 1, and a fixed rod 2 in the middle. Both ends of the fixed plate, fixed rod 1, and fixed rod 2 are fixedly connected to the frame. Fixed rod 2 is located in front of fixed rod 1. A background plate is installed in the middle of the front of the fixed plate. A light plate is installed in the middle of the background plate. A strobe light is installed in the middle of fixed rod 1. A sensing component is installed in the middle of fixed rod 2. The background plate provides backlighting and a reference background color for the passing film. The sensing component senses the speed of the passing film. The strobe light emits a strobe light on the passing film, which facilitates the monitoring of the film. The sensing component includes a moving block 1, a locking knob 1, an adjusting block 1, a speed sensor, and a limiting bolt 1. The moving block is mounted on a fixed rod 2. The locking knob 1 is installed at the bottom of the moving block 1 and locks the moving block 1 onto the fixed rod 2. One side of the adjusting block 1 abuts against one side of the moving block 1. The adjusting block 1 has a sliding groove 1 on its side. The limiting bolt 1 is installed on the side of the moving block 1 and locks the adjusting block 1 onto its side by passing through the sliding groove 1. The speed sensor is mounted on the adjusting block 1, and the output end of the speed sensor faces the thin film.
2. The thin film printing inspection device according to claim 1, characterized in that, A controller is located on one side of the frame, and the controller is electrically connected to the strobe light and the speed sensor respectively.
3. The thin film printing inspection device according to claim 1, characterized in that, A guide roller 1 is provided above the fixed plate, and a guide roller 2 is provided below the fixed plate. Both ends of the guide roller 1 and the guide roller 2 are movably connected to the frame. One end of the guide roller 1 is connected to the output end of the motor 1, and one end of the guide roller 2 is connected to the output end of the motor 2. The motor 1 and the motor 2 are located inside the frame, and the guide roller 1 and the guide roller 2 are driven to rotate by the motor 1 and the motor 2 respectively.
4. The thin film printing inspection device according to claim 1, characterized in that, The top of the strobe light is mounted on a fixing rod, and a locking knob is provided on the top of the strobe light to lock the strobe light onto the fixing rod.
5. The thin film printing inspection device according to claim 1, characterized in that, The strobe light has a light assembly on the front, a heat dissipation hole 1, a connection socket and a switch on the back, and a heat dissipation hole 2 on the side.
6. The thin film printing inspection device according to claim 1, characterized in that, The surface of the lamp panel is arranged with scale lines.
7. The thin film printing inspection device according to claim 1, characterized in that, Below the background panel is a horizontal plate, with both ends of the horizontal plate fixedly connected to the frame. The horizontal plate is equipped with anti-static brushes.
8. A thin film printing inspection device according to claim 2, characterized in that, A camera assembly is installed on the second fixed rod, and the camera assembly is electrically connected to the controller.
9. A thin film printing inspection device according to claim 8, characterized in that, The camera assembly includes a movable block 2, a locking knob 3, an adjusting block 2, a camera, and a limiting bolt 2. The movable block 2 is sleeved on the fixed rod 2. The locking knob 2 is installed at the bottom of the movable block 2 and locks the movable block 2 onto the fixed rod 2. One side of the adjusting block 2 abuts against one side of the movable block 2. The side of the adjusting block 2 is provided with a sliding groove 2. The limiting bolt 2 is installed on the side of the movable block 2 and locks the adjusting block 2 onto the side of the movable block 2 by passing through the sliding groove 2. The camera is installed on the adjusting block 2.
Citation Information
Patent Citations
Composite film printing detection device for food composite packaging bag
CN217084727U