A surface laser inspection device after film coating production

Abstract

This invention relates to the field of film coating inspection technology and discloses a surface laser inspection device after film coating production. The device includes a supporting work base, with a feeding / unloading mechanism fixedly connected to the top of the supporting work base. A suspension mechanism is movably connected inside the feeding / unloading mechanism. A film coating sheet is placed on the top of the feeding / unloading mechanism, and a detection mechanism is fixedly connected to one side of the top of the feeding / unloading mechanism. When the film coating sheet is placed above a limiting plate, a voice coil motor is activated, causing the limiting plate to vibrate. During vibration, the limiting plate sequentially vibrates the film coating sheet into the conical groove of the limiting plate. At this time, gas is introduced into the suspension mechanism, causing the film coating sheet in the conical groove to suspend in the air. The film coating sheet automatically rotates while suspended. The detection mechanism can perform comprehensive inspection of the film coating sheet without contact, thus preventing damage to the film coating sheet.

Description

Technical Field

[0001] This invention relates to the field of film coating inspection technology, and more specifically to a laser inspection device for the surface of a film after coating production. Background Technology

[0002] Film coating is a technology that uses polymer materials to form a thin film on the surface of a drug to encapsulate the drug, aiming to improve the stability and functionality of the drug. Film coating technology is widely used in dosage forms such as tablets and pills, and is especially suitable for traditional Chinese medicine preparations that are hygroscopic or have complex ingredients. Film coating technology occupies a core position in the pharmaceutical, food and health product industries.

[0003] Film coating forms a uniform and dense polymer film layer on the surface of tablets, capsules, or granules, achieving key functions such as masking unpleasant odors, improving appearance, controlling drug release rate, providing moisture and light protection, and enhancing product stability. The quality of the coating film, especially its surface integrity, uniformity, and roughness, directly determines the product's performance, safety, and shelf life. After film coating, efficient, accurate, and non-destructive testing of the surface is essential to ensure that the product meets quality requirements.

[0004] Therefore, after the film coating is formed, it needs to be inspected. Traditional methods include manual visual inspection and thickness gauge inspection. Manual visual inspection is highly dependent on the operator's experience and condition, which is subjective and easy to miss minute defects. When the thickness gauge is used for inspection, the thickness gauge comes into direct contact with the film coating, which poses a risk of scratching the fragile coating layer.

[0005] During testing, the film-coated products need to be rotated for comprehensive inspection. Currently, it is not possible to quickly and non-destructively rotate the film-coated products, and it is also not possible to inspect multiple film coatings simultaneously. The loading and unloading operations for testing are also quite cumbersome. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a surface laser inspection device after film coating production to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a surface laser inspection device after film coating production, comprising a supporting work base, a feeding and unloading mechanism fixedly connected to the top of the supporting work base, a suspension mechanism movably connected inside the feeding and unloading mechanism, a film coating sheet placed at the top of the feeding and unloading mechanism, and a detection mechanism fixedly connected to one side of the top of the feeding and unloading mechanism; the feeding and unloading mechanism includes a limiting plate for receiving the film coating sheet, an inclined unloading plate fixedly connected to one side of the top of the limiting plate, a shielding frame fixedly connected to the top of the limiting plate, the shielding frame and the inclined unloading plate surrounding the top of the limiting plate, a conical groove formed inside the limiting plate to accommodate the film coating sheet, and voice coil motors fixedly connected to the four corners of the bottom of the limiting plate.

[0008] In a preferred embodiment, a collection box is provided on the side of the feeding and unloading mechanism. After the limiting plate rotates, the inclined unloading plate on the side of the limiting plate is located above the collection box, and the collection box receives the film-coated sheets that slide down from above the inclined unloading plate.

[0009] In a preferred embodiment, a rotating plate is fixedly connected to the bottom end of the voice coil motor, a rotating shaft is fixedly connected to the inside of one side of the rotating plate, a servo motor is fixedly connected to one side of the rotating shaft, and a support plate is movably connected to the other side of the rotating shaft. The bottom ends of the servo motor and the support plate are both fixedly connected to the top end of the support work base.

[0010] In a preferred embodiment, a buffer pad is provided at the bottom end of the rotating plate away from the servo motor. The bottom end of the buffer pad is fixedly connected to the top end of the supporting work base. When the limiting plate is in a horizontal state, the bottom end of the limiting plate contacts the buffer pad, and the buffer pad is made of rubber elastic material.

[0011] In a preferred embodiment, the suspension mechanism includes a first suspension component, a second suspension component, and a third suspension component. The bottom ends of the first suspension component, the second suspension component, and the third suspension component are all fixedly connected to a first support block. The first suspension component, the second suspension component, and the third suspension component have the same structure.

[0012] In a preferred embodiment, the first suspension component includes a compressed gas inlet pipe through which compressed gas enters, a telescopic pipe fixedly connected to the side of the compressed gas inlet pipe, an outlet pipe fixedly connected to the side of the telescopic pipe, and a gas nozzle fixedly connected to the top of the outlet pipe.

[0013] In a preferred embodiment, each of the limiting plates is provided with a gas nozzle in a conical groove, the bottom end of the conical groove is through, the gas nozzle is located at the bottom end of the conical groove, and the film coating sheet is located in the middle of the conical groove and cannot fall downwards. The inner side of the telescopic tube is provided with a supporting arc plate, and the bottom end of the supporting arc plate is fixedly connected to a second supporting block.

[0014] In a preferred embodiment, the detection mechanism includes a supporting fixed block, an output motor fixedly connected to the top of the fixed block, a reciprocating lead screw fixedly connected to the side of the output motor, a moving plate threadedly connected to the side of the reciprocating lead screw, a connecting plate fixedly connected to the top of the moving plate, and a laser detector fixedly connected to the top of the connecting plate. The laser detector detects the blown film coating sheet.

[0015] In a preferred embodiment, a fixed plate is movably connected to the side of the reciprocating screw away from the output motor. A limit rod is fixedly connected to the bottom end of the fixed plate near the side of the moving plate. The side of the limit rod away from the fixed plate is fixedly connected to the side of the fixed block. A limit hole adapted to the limit rod is opened inside the moving plate.

[0016] The technical effects and advantages of this invention are as follows:

[0017] This invention comprises a limiting plate, a voice coil motor, a detection mechanism, and a film-coated sheet. When the film-coated sheet is placed above the limiting plate, the voice coil motor is activated, causing the limiting plate to vibrate. As the limiting plate vibrates, the film-coated sheets are sequentially vibrated into the conical groove of the limiting plate. At this time, gas is introduced into the suspension mechanism, which causes the film-coated sheets in the conical groove to suspend in the air. The film-coated sheets automatically rotate while suspended. The detection mechanism can perform comprehensive detection of the film-coated sheets without contact, thus preventing damage to the film-coated sheets.

[0018] This invention, by comprising a limiting plate, a rotating plate, a rotating shaft, and a collection box, allows the film-coated sheet to be suspended in the air for detection. After the suspension mechanism slowly stops the gas supply, the film-coated sheet slowly falls into the limiting plate. After the film-coated sheet falls, the servo motor starts and drives the rotating shaft to rotate. When the rotating shaft rotates, it drives the rotating plate and the limiting plate to rotate, so that the film-coated sheet slides down the limiting plate through the inclined feeding plate into the collection box for collection. This application can automatically complete the feeding and unloading work, with high working efficiency.

[0019] This invention incorporates an output motor, a reciprocating lead screw, a moving plate, and a laser detector. When the film-coated sheet is suspended above a limiting plate, it is divided into three rows (high, medium, and low) suspended on the limiting plate. At this time, the output motor starts and drives the reciprocating lead screw to rotate. The rotation of the reciprocating lead screw causes the moving plate to move back and forth. As the moving plate moves, it drives the laser detector to move through a connecting plate. The laser detector moves along the side of the film-coated sheet, thereby synchronously detecting the three rows of film-coated sheets and improving detection efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall exploded structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the feeding and unloading mechanism of the present invention.

[0023] Figure 4 This is an exploded view of the feeding and unloading mechanism of the present invention.

[0024] Figure 5 This is a schematic diagram of the suspension mechanism of the present invention.

[0025] Figure 6 This is a schematic diagram of the first suspension component structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the detection mechanism of the present invention.

[0027] Figure 8 This is an exploded structural diagram of the detection mechanism of the present invention.

[0028] The attached figures are labeled as follows: 1. Supporting work base; 2. Loading and unloading mechanism; 201. Limiting plate; 202. Baffle frame; 203. Inclined unloading plate; 204. Voice coil motor; 205. Rotating plate; 206. Rotating shaft; 207. Servo motor; 208. Support plate; 209. Buffer pad; 3. Suspension mechanism; 301. First suspension component; 3011. Compressed gas inlet pipe; 3012. Telescopic pipe; 3013. Discharge pipe; 3014. Gas nozzle; 302. Second suspension assembly; 303. Third suspension assembly; 304. First support block; 305. Support arc plate; 306. Second support block; 4. Detection mechanism; 401. Fixing block; 402. Output motor; 403. Reciprocating screw; 404. Moving plate; 405. Connecting plate; 406. Laser detector; 407. Fixing plate; 408. Limiting rod; 5. Collection box; 6. Film coating sheet. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The surface laser inspection device for film coating production involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figure 1 and Figure 2 This invention provides a surface laser inspection device after film coating production, including a supporting work base 1, a feeding and unloading mechanism 2 fixedly connected to the top of the supporting work base 1, a suspension mechanism 3 movably connected inside the feeding and unloading mechanism 2, a film coating sheet 6 placed at the top of the feeding and unloading mechanism 2, a detection mechanism 4 fixedly connected to one side of the top of the feeding and unloading mechanism 2, and a collection box 5 provided on the side of the feeding and unloading mechanism 2. After the limiting plate 201 rotates, the inclined unloading plate 203 on the side of the limiting plate 201 is located above the collection box 5, and the collection box 5 receives the film coating sheet 6 that slides down above the inclined unloading plate 203.

[0031] In this embodiment, after the limiting plate 201 rotates, the inclined feeding plate 203 on the side of the limiting plate 201 is located above the collection box 5. Therefore, when the film-coated sheet 6 slides down from the upper part of the limiting plate 201, it will fall into the collection box 5 through the inclined feeding plate 203, thereby automatically collecting the film-coated sheet 6 and automatically completing the collection work.

[0032] Reference Figure 2 , Figure 3 as well as Figure 4The feeding and unloading mechanism 2 includes a limiting plate 201 for receiving film-coated sheets 6. An inclined unloading plate 203 is fixedly connected to one side of the top of the limiting plate 201. A shielding frame 202 is fixedly connected to the top of the limiting plate 201. The shielding frame 202 and the inclined unloading plate 203 surround the top of the limiting plate 201. A conical groove is formed inside the limiting plate 201, which can accommodate the film-coated sheets 6. Voice coil motors 204 are fixedly connected to the four corners of the bottom of the limiting plate 201. A rotating plate 205 is fixedly connected to the bottom of the voice coil motor 204. The rotating plate 205 has an internal... A rotating shaft 206 is fixedly connected. A servo motor 207 is fixedly connected to one side of the rotating shaft 206, and a support plate 208 is movably connected to the other side of the rotating shaft 206. The bottom ends of the servo motor 207 and the support plate 208 are both fixedly connected to the top end of the support working base 1. A buffer pad 209 is provided at the bottom end of the rotating plate 205 away from the servo motor 207. The bottom end of the buffer pad 209 is fixedly connected to the top end of the support working base 1. When the limiting plate 201 is in a horizontal state, the bottom end of the limiting plate 201 contacts the buffer pad 209, and the buffer pad 209 is made of rubber elastic material.

[0033] In this embodiment, when the voice coil motor 204 starts, it causes the limiting plate 201 to vibrate. When the limiting plate 201 vibrates, the film coating sheet 6 is vibrated into the conical groove of the limiting plate 201, so that the film coating sheet 6 is placed in the conical groove of the limiting plate 201. Therefore, the feeding of the film coating sheet 6 can be performed automatically. When the rotating shaft 206 rotates, it drives the rotating plate 205 to rotate. The rotating plate 205 drives the limiting plate 201 to rotate as a whole through the voice coil motor 204. When the limiting plate 201 rotates, the film coating sheet 6 above the limiting plate 201 will slide down and eventually fall into the collection box 5 for automatic collection. Therefore, this application can automatically perform feeding and unloading, thereby improving the overall detection efficiency. The bottom end of the limiting plate 201 is provided with a buffer pad 209. Therefore, when the limiting plate 201 rotates downward to reset, it will first contact the buffer pad 209, which plays a buffering and fixing role.

[0034] Reference Figure 5 and Figure 6The suspension mechanism 3 includes a first suspension component 301, a second suspension component 302, and a third suspension component 303. A first support block 304 is fixedly connected to the bottom end of each of the three suspension components 301, 302, and 303. The first suspension components 301, 302, and 303 have identical structures. The first suspension component 301 includes a compressed gas inlet pipe 3011 through which compressed gas enters. An extension tube is fixedly connected to the side of the compressed gas inlet pipe 3011. The telescopic tube 3012 is fixedly connected to the side of the tube, and the exhaust pipe 3013 is fixedly connected to the top of the exhaust pipe 3013. Each limiting plate 201 has a gas nozzle 3014 in its conical groove. The bottom of the conical groove is open, and the gas nozzle 3014 is located at the bottom of the conical groove. The film coating sheet 6 is located in the middle of the conical groove and cannot fall downward. The inner side of the telescopic tube 3012 is provided with a support arc plate 305, and the bottom of the support arc plate 305 is fixedly connected to a second support block 306.

[0035] In this embodiment, the first suspension component 301, the second suspension component 302, and the third suspension component 303 have the same structure, so they all exhaust gas through the gas nozzle 3014. The gas nozzle 3014 is located at the bottom of the conical groove. When exhausting gas upwards, it causes the film-coated sheet 6 within the conical groove to suspend. The conical groove within the limiting plate 201 has three rows, corresponding sequentially to the first suspension component 301, the second suspension component 302, and the third suspension component 303. The different amounts of compressed gas introduced result in different suspension heights of the three rows of film-coated sheets 6, which are arranged from low to high in the direction away from the detection mechanism 4, facilitating detection. The telescopic tube 3012 is equipped with a support arc plate 305 inside, which limits and blocks the telescopic tube 3012 to prevent the rotating shaft 206 from contacting the telescopic tube 3012 and causing damage. The first support block 304 can support the first suspension component 301, the second suspension component 302 and the third suspension component 303 to ensure their stability during operation.

[0036] Reference Figure 7 and Figure 8The detection mechanism 4 includes a fixed block 401 for support. An output motor 402 is fixedly connected to the top of the fixed block 401. A reciprocating screw 403 is fixedly connected to the side of the output motor 402. A moving plate 404 is threadedly connected to the side of the reciprocating screw 403. A connecting plate 405 is fixedly connected to the top of the moving plate 404. A laser detector 406 is fixedly connected to the top of the connecting plate 405. The laser detector 406 detects the blown film coating sheet 6. A fixed plate 407 is movably connected to the side of the reciprocating screw 403 away from the output motor 402. A limit rod 408 is fixedly connected to the bottom end of the fixed plate 407 near the side of the moving plate 404. The side of the limit rod 408 away from the fixed plate 407 is fixedly connected to the side of the fixed block 401. A limit hole adapted to the limit rod 408 is opened inside the moving plate 404.

[0037] In this embodiment, when the output motor 402 starts, it drives the reciprocating screw 403 to rotate. When the reciprocating screw 403 rotates, it causes the moving plate 404 to move back and forth. When the moving plate 404 moves back and forth, it drives the laser detector 406 to move back and forth through the connecting plate 405. The laser detector 406 moves back and forth on the side of the film-coated sheet 6 to detect the film-coated sheet 6. The moving plate 404 has a limiting hole inside that matches the limiting rod 408 to ensure that the moving plate 404 can move back and forth stably.

[0038] The working principle of this invention is as follows: During testing, the film-coated sheet 6 is placed inside the limiting plate 201. After placement, the voice coil motor 204 is started. When the voice coil motor 204 is started, the limiting plate 201 vibrates. When the limiting plate 201 vibrates, the film-coated sheet 6 is vibrated into the conical groove of the limiting plate 201, so that the conical groove of the limiting plate 201 is filled with film-coated sheets 6. At this time, the voice coil motor 204 stops working, and the first suspension component 301, the second suspension component 302, and the third suspension component 303 start working.

[0039] When the first suspension component 301, the second suspension component 302, and the third suspension component 303 are working, the gas enters through its corresponding compressed gas inlet pipe 3011 and is finally discharged through the gas nozzle 3014. When the gas nozzle 3014 discharges the gas upward, it suspends the film-coated sheet 6 above it in the air. Since the gas flow rates of the first suspension component 301, the second suspension component 302, and the third suspension component 303 are different, the suspension height of the film-coated sheet 6 above them is different. At this time, the three rows of film-coated sheets 6 are arranged from low to high in the direction away from the detection mechanism 4.

[0040] When the film-coated sheet 6 is suspended, the output motor 402 starts and drives the reciprocating screw 403 to rotate. When the reciprocating screw 403 rotates, the moving plate 404 moves back and forth. When the moving plate 404 moves back and forth, it drives the laser detector 406 to move back and forth through the connecting plate 405. The laser detector 406 moves back and forth on the side of the film-coated sheet 6 to detect the film-coated sheet 6. The film-coated sheet 6 will rotate when it is suspended, so as to perform a comprehensive inspection of the film-coated sheet 6. At this time, the unqualified film-coated sheet 6 can be removed.

[0041] After the film-coated sheet 6 is tested, the first suspension component 301, the second suspension component 302, and the third suspension component 303 all slowly stop working. At this time, the film-coated sheet 6 slowly falls into the limiting plate 201. After the film-coated sheet 6 falls into the limiting plate 201, the servo motor 207 starts. When the servo motor 207 starts, it drives the rotating shaft 206 to rotate. When the rotating shaft 206 rotates, it drives the rotating plate 205 to rotate. The rotating plate 205 drives the limiting plate 201 to rotate as a whole through the voice coil motor 204. When the limiting plate 201 rotates, the limiting plate 201... The square film-coated sheet 6 will slide down. After the limiting plate 201 rotates, the inclined feeding plate 203 is located above the collection box 5. Therefore, when the film-coated sheet 6 slides down, it will pass through the inclined feeding plate 203 and finally fall into the collection box 5 for collection. After the tested film-coated sheet 6 is collected, the servo motor 207 controls the rotating shaft 206 to reset. When the rotating shaft 206 resets, the limiting plate 201 and the rotating plate 205 are reset. At this time, the limiting plate 201 maintains the horizontal rotating drum again, so the film-coated sheet 6 to be tested can be put in again, thereby performing cyclic testing.

[0042] In conclusion, the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surface laser inspection device after film coating production, comprising a supporting work platform (1), characterized in that: The top of the supporting work platform (1) is fixedly connected to a loading and unloading mechanism (2), and a suspension mechanism (3) is movably connected inside the loading and unloading mechanism (2). A film-coated sheet (6) is placed on the top of the loading and unloading mechanism (2), and a detection mechanism (4) is fixedly connected to one side of the top of the loading and unloading mechanism (2). The loading and unloading mechanism (2) includes a limiting plate (201) for receiving the film-coated sheet (6), and the top of the limiting plate (201) has a... A sloping feed plate (203) is fixedly connected to one side, and a shielding frame (202) is fixedly connected to the top of the limiting plate (201). The shielding frame (202) and the sloping feed plate (203) surround the top of the limiting plate (201). A conical groove is opened inside the limiting plate (201). The conical groove of the limiting plate (201) can accommodate the film coating sheet (6). A voice coil motor (204) is fixedly connected to each of the four corners at the bottom of the limiting plate (201). The suspension mechanism (3) includes a first suspension component (301), a second suspension component (302), and a third suspension component (303). The bottom ends of the first suspension component (301), the second suspension component (302), and the third suspension component (303) are all fixedly connected to a first support block (304). The first suspension component (301), the second suspension component (302), and the third suspension component (303) have the same structure. The first suspension component (301) includes a compressed gas inlet pipe (3011) through which compressed gas enters, a telescopic pipe (3012) is fixedly connected to the side of the compressed gas inlet pipe (3011), an outlet pipe (3013) is fixedly connected to the side of the telescopic pipe (3012), and a gas nozzle (3014) is fixedly connected to the top of the outlet pipe (3013). The detection mechanism (4) includes a fixed block (401) for support. An output motor (402) is fixedly connected to the top of the fixed block (401). A reciprocating screw (403) is fixedly connected to the side of the output motor (402). A moving plate (404) is threadedly connected to the side of the reciprocating screw (403). A connecting plate (405) is fixedly connected to the top of the moving plate (404). A laser detector (406) is fixedly connected to the top of the connecting plate (405). The laser detector (406) detects the blown film coating sheet (6).

2. The surface laser inspection equipment after film coating production according to claim 1, characterized in that: The feeding and unloading mechanism (2) has a collection box (5) on its side. After the limiting plate (201) rotates, the inclined unloading plate (203) on the side of the limiting plate (201) is located above the collection box (5). The collection box (5) receives the film-coated sheets (6) that slide down from above the inclined unloading plate (203).

3. The surface laser inspection equipment after film coating production according to claim 1, characterized in that: The bottom end of the voice coil motor (204) is fixedly connected to a rotating plate (205). A rotating shaft (206) is fixedly connected inside one side of the rotating plate (205). A servo motor (207) is fixedly connected to one side of the rotating shaft (206). A support plate (208) is movably connected to the other side of the rotating shaft (206). The bottom ends of the servo motor (207) and the support plate (208) are both fixedly connected to the top end of the support work base (1).

4. The surface laser inspection equipment after film coating production according to claim 3, characterized in that: The bottom end of the rotating plate (205) away from the servo motor (207) is provided with a buffer pad (209). The bottom end of the buffer pad (209) is fixedly connected to the top end of the supporting work base (1). When the limiting plate (201) is in a horizontal state, the bottom end of the limiting plate (201) contacts the buffer pad (209), and the buffer pad (209) is made of rubber elastic material.

5. The surface laser inspection equipment after film coating production according to claim 1, characterized in that: Each of the limiting plates (201) is provided with a gas nozzle (3014) in a conical groove. The bottom end of the conical groove is open. The gas nozzle (3014) is located at the bottom end of the conical groove. The film coating sheet (6) is located in the middle of the conical groove and cannot fall downward. The inner side of the telescopic tube (3012) is provided with a support arc plate (305). The bottom end of the support arc plate (305) is fixedly connected to a second support block (306).

6. The surface laser inspection equipment after film coating production according to claim 1, characterized in that: The reciprocating screw (403) is movably connected to a fixed plate (407) on the side away from the output motor (402). A limit rod (408) is fixedly connected to the bottom end of the fixed plate (407) near the side of the moving plate (404). The side of the limit rod (408) away from the fixed plate (407) is fixedly connected to the side of the fixed block (401). The moving plate (404) has a limit hole inside that matches the limit rod (408).

Images