Roll type production detection device for light guide sheet printing piece
By improving the design of unwinding module and winding module, the problem of the release paper rubbing off powder and material sliding during unwinding process is solved, and efficient rolling production inspection is achieved to ensure product quality and production efficiency.
Patent Information
- Application Number
- CN202422390979.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-30
AI Technical Summary
During the unwinding process of the light guide sheet, the release paper easily rubs off the powder with the chuck of the fixed roll material, resulting in poor white spots, and the material is prone to problems such as material disconnection and disassembly during rolling, affecting product quality and production efficiency.
Using a detection device including an unwinding module and a winding module, the chuck is installed on the discharge shaft through a ball bearing movable sleeve and is equipped with a support spring. The baffle rotates synchronously with the coil to reduce friction; the inner support clamp stabilizes the material drum through the air cavity to prevent sliding; combined with the flat dust removal module and the blue light detection module, ensures the surface of the material clean and accurate detection.
It effectively avoids the poor white spots caused by friction and powder removal of materials, prevents material running and disassembling, improves product quality and production efficiency, and achieves efficient roll production inspection.
Smart Images
Figure CN223225416U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of light guide plate production and detection, in particular to a roll-type production and detection device for light guide plate printing pieces. Background Art
[0002] Light guides are widely used in electronic devices, and their quality directly affects the display effect of the equipment. Printing is a key step in the production process of light guides. Traditional light guide inspections are mostly manual spot checks or single-sheet inspections, which are inefficient and prone to missed inspections. And with the application and popularization of roll-to-roll production methods in light guide manufacturing, problems in roll-to-roll production and inspection processes have also become prominent. For example, during the unwinding process, the release paper is prone to friction with the chuck that fixes the roll material, causing powder to fall off, thereby dirtying the printed material and causing white spots on the light guide; at the same time, when the material is wound on the reel, it is easy for the material roll and the reel to slide relative to each other, causing material leakage, material swinging, etc., seriously affecting product quality and production efficiency. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a roll-type production and detection device for light guide plate printing, which solves the problem in the prior art that the release paper of the light guide plate material is easily rubbed against the chuck that fixes the roll material and loses powder during the unwinding process.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a roll-type production and detection device for light guide sheet printed materials, comprising a machine platform and an unwinding mechanism, a conveying mechanism, a printing mechanism, and a detection mechanism arranged on the machine platform, the unwinding mechanism comprising an unwinding module and a rewinding module, the unwinding module comprising an unwinding shaft arranged on the machine platform and a chuck sleeved on the unwinding shaft, the rewinding module comprising a rewinding shaft arranged on the machine platform and an internal support fixture sleeved on the rewinding shaft;
[0005] Among them, the chuck includes a fixing ring and a baffle, the baffle can be movably mounted on the discharge shaft through a ball bearing, the fixing ring can be fixedly mounted on the discharge shaft through bolts, and the fixing ring is provided with a support spring that can elastically abut against the ball bearing.
[0006] Optionally, the inner support fixture includes a sleeve that can be sleeved on the receiving shaft, and the outer portion of the sleeve is slidably connected to a plurality of inner support plates along its radial direction;
[0007] Among them, an air cavity that can be connected to the air source is provided inside the side wall of the sleeve, and one end of the inner support plate can be embedded in the air cavity. When a positive pressure air source is introduced into the air cavity, several of the inner support plates can move away from the sleeve along the radial direction of the sleeve.
[0008] Optionally, it also includes a flat dust removal module arranged on the machine platform, the flat dust removal module includes a compound roller, a dust sticking roller and a tensioning roller arranged in parallel, a gap is reserved between the compound roller and the dust sticking roller, and the tensioning roller is symmetrically arranged along the compound roller.
[0009] Optionally, it also includes a blue light detection module arranged on the machine, and the blue light detection module includes a mounting aluminum plate arranged on the machine, and the mounting aluminum plate is slidably connected to a support arm arranged along the conveying direction of the light guide material through a slide seat, and a blue light source capable of irradiating the light guide material is arranged on the support arm through a lampshade frame.
[0010] Optionally, the support arm and the slide can slide in a horizontal direction to move away from or closer to the printed workpiece, and the support arm can be fixed at any position on the mounting aluminum plate.
[0011] Optionally, one end of the support arm is hinged to the slide, and the support arm can be flipped upward around the slide.
[0012] Optionally, the lampshade frame includes a connecting frame and a light source mounting seat hinged to the end of the connecting frame, the blue light source is mounted on the light source mounting seat, and the light source mounting seat can be flipped upward or downward around the end of the connecting frame.
[0013] Compared with the prior art, the present invention achieves the following beneficial effects: the light sheet coil can be slidably mounted on a discharge shaft, which is fixed to the machine platform and cannot rotate. A baffle and a retaining ring are mounted on the discharge shaft, and the baffle can be placed against one side of the coil. After adjusting the position of the retaining ring on the discharge shaft, a support spring on one side of the retaining ring can be elastically supported on the baffle, without affecting the baffle's rotation. The retaining ring is then fixed to the discharge shaft with bolts. During the discharge of the coil, the baffle rotates synchronously with the coil, reducing friction between the baffle and the material, preventing the material from shedding powder due to friction, which can cause white spots on the light guide sheet. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is a structural diagram of a preferred embodiment of the present invention when the chuck is installed on the discharge shaft;
[0016] Figure 2 This is a structural diagram of the preferred embodiment of the present invention when the inner support fixture is installed on the receiving shaft;
[0017] Figure 3 This is a schematic diagram of the structure in which the light guide sheet material is wound around the re-material roller, the dust sticking roller and the tensioning roller in the preferred embodiment of the present invention;
[0018] Figure 4 This is a schematic structural diagram of a blue light detection module in a preferred embodiment of the present invention;
[0019] Among them, 1. unloading shaft; 2. receiving shaft; 3. chuck; 301. fixing ring; 302. baffle; 303. ball bearing; 304. support spring; 4. internal support fixture; 401. sleeve; 402. internal support plate; 5. compounding roller; 6. dust-sticking roller; 7. tensioning roller; 8. mounting aluminum plate; 9. slide; 10. support arm; 11. lampshade frame; 1101. connecting frame; 1102. light source mounting seat. DETAILED DESCRIPTION
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.
[0021] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "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, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0022] like Figure 1-Figure 4As shown, a roll-type production and inspection device for light guide sheet printing includes a machine platform and an unwinding mechanism, a conveying mechanism, a printing mechanism and a detection mechanism arranged on the machine platform. In this technical solution, the unwinding mechanism, the conveying mechanism, the printing mechanism and the detection mechanism are existing technologies. Among them, the unwinding mechanism is used to place the light guide sheet printing roll, and unwind and rewind it at a uniform speed, and can maintain and balance the tension of the light guide sheet roll during the conveying process; the conveying mechanism is composed of several groups of transmission rollers, which can transport the light guide sheet from the unwinding mechanism to various working areas; the printing mechanism is composed of existing mechanical equipment such as printing machines, which can print on the light guide sheet; and the detection mechanism is composed of existing technologies such as optical detection modules and image processing modules, which can detect defects in the light guide sheet and determine whether it meets the standards. The unwinding mechanism, the conveying mechanism, the printing mechanism and the detection mechanism cooperate with each other to jointly complete the printing and detection operations of the light guide sheet.
[0023] Different from the existing technology, in this technical solution, the unwinding mechanism includes an unwinding module and a winding module. The unwinding module includes a unwinding shaft 1 set on the machine table and a chuck 3 mounted on the unwinding shaft 1. The winding module includes a winding shaft 2 set on the machine table and an internal support clamp 4 mounted on the winding shaft 2. The internal support clamp 4 can firmly support the inner side of the material roll, which can effectively prevent the material roll from sliding relative to each other.
[0024] As described above, the chuck 3 includes a fixing ring 301 and a baffle 302. The baffle 302 can be movably mounted on the unloading shaft 1 via a ball bearing 303. The fixing ring 301 can be fixedly mounted on the unloading shaft 1 via bolts. The fixing ring 301 is provided with a support spring 304 that can elastically abut against the ball bearing 303. Specifically, the coil of light guide sheet can be slidably mounted on the unloading shaft 1, which is fixed to the machine table and cannot rotate. The baffle 302 and fixing ring 301 are then sequentially mounted on the unloading shaft 1, so that the baffle 302 is in contact with one side of the coil. The position of the fixing ring 301 on the unloading shaft 1 is then adjusted so that the support spring 304 on one side of the fixing ring 301 can elastically support the baffle 302. The support spring 304 does not affect the rotation of the baffle 302. The fixing ring 301 is then fixed to the unloading shaft 1 via bolts. When the coil is unwinding, the baffle 302 can rotate synchronously with the coil, thereby reducing the friction between the baffle 302 and the material, and preventing the material from losing powder due to friction, which may cause white spots on the light guide plate.
[0025] As described above, the internal support fixture 4 includes a sleeve 401 that can be mounted on the material receiving shaft 2. The sleeve 401 has a plurality of internal support plates 402 radially slidably connected to the outside thereof. The surface of the support plates is provided with anti-slip grooves, which can firmly support the inner side of the material roll. The side wall of the sleeve 401 is provided with an air cavity that can be connected to an air source. One end of the internal support plate 402 can be embedded in the air cavity. When a positive pressure air source is introduced into the air cavity, the plurality of internal support plates 402 can be radially away from the sleeve 401. An anti-slip structure is also provided between the internal support plates 402 and the sleeve 401. This structure is conventional and can limit the travel of the internal support plates 402 to a certain range to prevent the internal support plates 402 from detaching from the sleeve 401. At the same time, when a negative pressure air source is introduced into the air cavity, the plurality of internal support plates 402 can be radially retracted toward the sleeve 401.
[0026] The above, such as Figure 3 As shown, it also includes a flattening dust removal module arranged on the machine platform, and the flattening dust removal module includes a compounding roller 5, a sticky roller 6 and a tensioning roller 7 arranged in parallel. A gap is reserved between the compounding roller 5 and the sticky roller 6, and the tensioning roller 7 is symmetrically arranged along the compounding roller 5. The light guide sheet material output by the unwinding module can penetrate into the gap between the compounding roller 5 and the sticky roller after peeling off the release paper. While flattening the light guide sheet material, it can also remove dust and other impurities on the light guide sheet material. At the same time, before the light guide sheet material enters the gap between the compounding roller 5 and the sticky roller and after leaving the gap between the compounding roller 5 and the sticky roller, the light guide sheet material can bypass the tensioning roller 7. The light guide sheet material of this section will be limited to a "W" shape by the compounding roller 5, the sticky roller 6 and the tensioning roller 7, as shown specifically Figure 3 As shown, the tension of the light guide material in this section is increased to prevent wrinkles from appearing on the surface of the material.
[0027] The above, such as Figure 4 As shown, the machine also includes a blue light detection module mounted on the platform. The blue light detection module comprises an aluminum mounting plate 8 mounted on the platform. The mounting plate 8 is slidably connected to an arm 10 arranged along the conveying direction of the light guide material via a slide 9. A blue light source capable of illuminating the light guide material is mounted on the arm 10 via a lampshade frame 11. The blue light source can illuminate the edges and surface of the light guide material, creating a clear contrast between the color gradation of the light guide material surface and the background of the machine, facilitating the detection mechanism to identify wrinkles and defects in the light guide material.
[0028] In this embodiment, as the blue light source approaches or moves away from the light guide material, the surface of the light guide material presents different states. To enhance the effect of the blue light source on the surface of the light guide material, the arm 10 and slide 9 can slide horizontally away from or toward the printed workpiece, and the arm 10 can be fixed at any position on the mounting aluminum plate 8. Specifically, a fixing bolt can be threaded onto the slide 9, allowing one end of the fixing bolt to pass through the slide 9 and abut against the mounting aluminum plate 8. By tightening or loosening the fixing bolt, the slide 9 can be fixed at any position on the mounting aluminum plate 8. Furthermore, as the angle of the blue light source irradiating the light guide material changes, the surface of the light guide material presents different states. Therefore, in this technical solution, the lampshade frame 11 includes a connecting frame 1101 and a light source mounting seat 1102 hinged to the end of the connecting frame 1101. The blue light source is mounted on the light source mounting seat 1102, and the light source mounting seat 1102 can be tilted upward or downward around the end of the connecting frame 1101. Preferably, the light source mounting seat 1102 can be flipped around the end of the connecting frame 1101 by plus or minus 20 degrees, and the light source mounting seat 1102 can be fixed at any angle within the range.
[0029] Furthermore, in order to facilitate operators to inspect the blue light source on the blue light detection module, one end of the support arm 10 is hinged on the slide 9, and the support arm 10 can be flipped upward 90° around the slide 9.
[0030] Working Principle: The light sheet coil slides onto the unwinding shaft 1, which is fixed to the machine platform and cannot rotate. The baffle 302 and retaining ring 301 are then sequentially placed onto the unwinding shaft 1, placing the baffle 302 against one side of the coil. The retaining ring 301 is then adjusted on the unwinding shaft 1 so that the support spring 304 on one side of the retaining ring 301 elastically supports the baffle 302, preventing the support spring 304 from interfering with the baffle's rotation. The retaining ring 301 is then secured to the unwinding shaft 1 with bolts. As the coil unwinds, the baffle 302 rotates synchronously with the coil, reducing friction between the baffle 302 and the material, preventing white spots on the light guide sheet caused by frictional powder loss. At the same time, the internal support clamp 4 on the receiving shaft 2 can rotate along with the receiving shaft 2, and the internal support clamp 4 can introduce a positive pressure air source into the air cavity, so that several internal support plates 402 can move away from the sleeve 401 along the radial direction of the sleeve 401, so that the internal support plates 402 are firmly supported on the inner side of the material roll to avoid material leakage, material swinging, etc.
[0031] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A roll-to-roll production and inspection device for light guide sheet printing, comprising a machine platform and an unwinding mechanism, a conveying mechanism, a printing mechanism, and a detection mechanism arranged on the machine platform, characterized in that: The unwinding mechanism comprises an unwinding module and a rewinding module, the unwinding module comprises an unwinding shaft (1) arranged on the machine platform, and a chuck (3) sleeved on the unwinding shaft (1), the rewinding module comprises a rewinding shaft (2) arranged on the machine platform, and an inner support fixture (4) sleeved on the rewinding shaft (2); The chuck (3) comprises a fixing ring (301) and a baffle (302), wherein the baffle (302) can be movably mounted on the discharge shaft (1) via a ball bearing (303), and the fixing ring (301) can be fixedly mounted on the discharge shaft (1) via bolts, and a supporting spring (304) capable of elastically abutting against the ball bearing (303) is provided on the fixing ring (301).
2. The roll-to-roll production and inspection device for light guide sheet printing according to claim 1, characterized in that: The inner support fixture (4) comprises a sleeve (401) that can be sleeved on the receiving shaft (2), and the outer portion of the sleeve (401) is slidably connected to a plurality of inner support plates (402) along its radial direction; An air cavity capable of being connected to an air source is provided inside the side wall of the sleeve (401), and one end of the inner support plate (402) can be embedded in the air cavity. When a positive pressure air source is introduced into the air cavity, a plurality of the inner support plates (402) can move away from the sleeve (401) in the radial direction of the sleeve (401).
3. The roll-to-roll production and inspection device for light guide sheet printing according to claim 1, characterized in that: The machine also includes a flat dust removal module arranged on the machine platform, the flat dust removal module includes a compounding roller (5), a dust sticking roller (6) and a tensioning roller (7) arranged in parallel, a gap is reserved between the compounding roller (5) and the dust sticking roller (6), and the tensioning roller (7) is symmetrically arranged along the compounding roller (5).
4. The roll-to-roll production and inspection device for light guide sheet printing according to claim 1, characterized in that: The invention also includes a blue light detection module arranged on the machine platform, wherein the blue light detection module includes a mounting aluminum plate (8) arranged on the machine platform, wherein the mounting aluminum plate (8) is slidably connected to a support arm (10) arranged along the conveying direction of the light guide sheet material via a slide seat (9), and a blue light source capable of irradiating the light guide sheet material is arranged on the support arm (10) via a lampshade frame (11).
5. The roll-to-roll production and inspection device for light guide sheet printing according to claim 4, characterized in that: The support arm (10) and the slide seat (9) can slide in a horizontal direction to move away from or approach a printed part, and the support arm (10) can be fixed at any position on the mounting aluminum plate (8).
6. The roll-to-roll production and inspection device for light guide sheet printing according to claim 4, characterized in that: One end of the support arm (10) is hinged to the slide seat (9), and the support arm (10) can be turned upward by 90° around the slide seat (9).
7. The roll-to-roll production and inspection device for light guide sheet printing according to claim 4, characterized in that: The lampshade frame (11) comprises a connecting frame (1101) and a light source mounting seat (1102) hinged to the end of the connecting frame (1101); the blue light source is mounted on the light source mounting seat (1102); and the light source mounting seat (1102) is capable of turning upward or downward around the end of the connecting frame (1101).