An automatic liquid crystal display protective film marking device and method

Abstract

This invention relates to the technical field of product marking, specifically to an automatic liquid crystal display protective film marking device and method. The marking device includes a conversion mechanism, an interval mechanism, a positioning mechanism, a clamping mechanism, and a reading sensor. The clamping mechanism fixes the device to a transmission line. After the reading sensor acquires information from the transmission line, the positioning mechanism is activated for precise positioning. Simultaneously, the conversion mechanism places a marker pen under the working area, and the interval mechanism is activated to draw the mark. This device has a simple structure. Through its simple structural design, it allows for the selection of various line types, positions, and marker colors, effectively solving the problem of difficult processes and lack of equipment. It has good practicality and economy, and is beneficial for the promotion and use of the equipment.

Description

Technical Field

[0001] This invention relates to the technical field of product marking, and specifically to an automatic liquid crystal display protective film marking device and method. Background Technology

[0002] During the production of liquid crystal displays (LCDs), the protective film of the polarizer needs to be effectively marked for identification and removal.

[0003] Marking the protective film of polarizers is a means of identification. It is necessary to mark lines on the whole sheet of uncut protective film of polarizers. After the whole sheet (roll) of polarizer is cut into individual pieces according to the angle and size requirements, the position of the marked lines on the individual polarizer pieces is random.

[0004] Because this type of work is relatively repetitive and involves a large workload, manual operation cannot avoid missing the protective film of the LCD monitors on the transport line. At the same time, the cost of equipment marking is high, and the marking style does not meet the current requirements. There is an urgent need for a device that can replace manual labor, accurately mark the screens, and is inexpensive to manufacture and maintain. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, the present invention aims to provide an automatic liquid crystal display protective film marking device and method that effectively solves the marking problem of different positions and different line types, while being low in cost and easy to maintain and replace.

[0006] The technical solution adopted in this invention is: an automatic liquid crystal display protective film marking device, comprising:

[0007] The conversion mechanism includes a carrying tray with multiple sets of movable displacement grooves arranged in a circular array. A spring-loaded buckle, C-shaped in structure, is located within the movable main rod, its opening facing towards the periphery of the carrying tray. Both ends of the spring-loaded buckle are slidably connected to the carrying tray. A dovetail groove is located in the middle of the spring-loaded buckle. A lifting buckle, also C-shaped, is also located in the middle of the spring-loaded buckle and features a dovetail protrusion. The dovetail protrusion is inserted into the dovetail groove. A thrust spring is connected between the elastic buckle and the movable displacement groove. A convex limiting ring is provided around the outer edge of the loading tray. The convex limiting ring has a teardrop-shaped structure. A feeding notch is provided in the middle of the convex limiting ring. A fixing pin is fastened to the feeding notch. A rotating ring is also provided around the outer edge of the loading tray. A circumferential groove is provided inside the convex limiting ring. The convex limiting ring is slidably connected to the outer edge of the loading tray by fastening the rotating ring through the circumferential groove. A rotating component is also provided on the loading tray.

[0008] An interval mechanism is located above the rotating component to assist the conversion mechanism in performing interval activities;

[0009] A positioning mechanism is located on one side of the spacing mechanism. The positioning mechanism includes a main buckle plate, a positioning element is provided above the main buckle plate, and a torsion element is provided between the middle of the main buckle plate and the spacing mechanism to assist the conversion mechanism in marking.

[0010] A clamping mechanism, located below the positioning mechanism, is used to assist the equipment in being fastened to the construction platform;

[0011] A reading sensor is fixedly connected to the side of the main buckle plate near the interval mechanism to identify the position of the workpiece below the conversion mechanism.

[0012] In one embodiment, the rotating component includes a limiting disk located above the carrying tray. A rotating column is provided in the middle of the limiting disk, and a rotating motor is provided on the side of the rotating column near the carrying tray. A motor rotating shaft is provided on the rotating shaft of the rotating motor and is fixedly connected to the middle of the carrying tray. A fixed adjusting rod is provided between the limiting disk and the protruding limiting ring. The fixed adjusting rod is located on the outer ring of the limiting disk, and a trapezoidal block is provided in the middle of the fixed adjusting rod. The trapezoidal surface of the trapezoidal block is near the side of the protruding limiting ring.

[0013] In one embodiment, the elastic buckle is further provided with a support recess, which is located above the dovetail protrusion, and a lifting spring is connected between the support recess and the dovetail protrusion.

[0014] In one embodiment, the spacing mechanism includes a main hanging shaft, with the rotating column passing through and slidably connected to the middle of the main hanging shaft. A bending rod is provided on the side of the main hanging shaft away from the main buckle plate. The bending rod has an L-shaped structure, and a contact roller is provided at the end of the bending rod. A sleeve post is provided on the side of the contact roller near the bending rod, and the sleeve post is rotatably connected to the bending rod. A variable diameter groove extends outward from the center of the contact roller, and an adjusting rod is provided in the middle of the variable diameter groove. The adjusting rod passes through the variable diameter groove and is slidably connected to the contact roller. A movable motor is provided on the side of the contact roller away from the bending rod, and a threaded rod is provided on the rotating shaft of the movable motor. The threaded rod passes through and is rotatably connected to the middle of the adjusting rod.

[0015] In one embodiment, the end of the adjusting rod away from the contact roller is further provided with a driving block. The driving block has a movable through groove in the middle. The adjusting rod passes through the movable through groove and is slidably connected to the driving block. The driving block also has a lifting swing rod in the middle. The end of the lifting swing rod away from the driving block passes through and is slidably connected to the middle of the bending rod. The lifting swing rod has a hook plate in the middle. A stabilizing spring is provided between the hook plate and the bending rod and is penetrated by the lifting swing rod.

[0016] In one embodiment, the positioning component includes two sets of transverse movable plates and two sets of longitudinal movable plates. The transverse movable plates and the longitudinal movable plates are connected end to end in sequence, forming a rectangular frame placed above the spacing mechanism and the conversion mechanism. The transverse movable plates are provided with transverse movable grooves, and the longitudinal movable plates are provided with longitudinal movable grooves. A transverse movable rod is provided between the two sets of transverse movable plates and slidably connected to the transverse movable groove. A longitudinal movable rod is provided between the two sets of longitudinal movable plates and slidably connected to the longitudinal movable groove. The longitudinal movable rod and the transverse movable rod are staggered in height, and a positioning post is provided at their projection intersection. The positioning post is located above the main hanging shaft. The positioning post is slidably connected to the longitudinal movable rod and the transverse movable rod. An extension connecting post is provided on the side of the positioning post near the spacing mechanism.

[0017] In one embodiment, the torsion member includes a connecting spindle, the main buckle plate is located below the transverse movable plate away from the spacing mechanism, a plurality of connecting spindles are provided between the transverse movable plate and the main buckle plate, one of the connecting spindles is provided with a movable main rod, one end of the movable main rod is rotatably connected to the middle of the connecting spindle, the other end of the movable main rod is provided with a torsion motor, the torsion motor is hinged to the movable main rod, and the rotation shaft of the torsion motor is fixedly connected to the side of the main hanging shaft away from the spacing mechanism.

[0018] In one embodiment, the positioning mechanism further includes a lifting component, which includes a movable barrel located at the end of the extended connecting column away from the positioning column. A movable buffer rod is provided at the end of the movable barrel away from the extended connecting column. The movable buffer rod has a T-shaped structure, with its long section passing through and slidably connected to the center of the bottom of the movable barrel. A lifting latch is provided at the end of the movable buffer rod, and arc-shaped sliders are provided on both sides of the lifting latch. The arc-shaped sliders are perfectly circular arc blocks with arc-shaped grooves on them, and the lifting latch passes through the arc-shaped grooves and slides. The component is connected to an arc-shaped slider, the side of which is away from the lifting lever is fixedly connected to the movable main rod. The straight-line distance between the center of the movable main rod and the connecting end of the arc-shaped slider is less than the straight-line distance between the center of the movable main rod and the far end of the arc-shaped slider. The torsion component also includes a torsion ring, which is sleeved on the connecting main shaft on which the movable main rod is located. The torsion ring is provided with several torsion rods, which pass through and are slidably connected to the connecting main shaft. The main buckle plate is also provided with an adjustment motor, and a movable belt is provided between the rotating wheel of the adjustment motor and the torsion ring.

[0019] In one embodiment, the clamping mechanism includes a bottom edge buckle plate located on the side of the main buckle plate away from the connecting spindle. A movable support plate is provided between the bottom edge buckle plate and the main buckle plate. The movable support plate is located on the projection plane of the main buckle plate and away from the spacing mechanism. A plurality of connecting pins are provided on the movable support plate, each pin penetrating the movable support plate and having one end fixedly connected to the main buckle plate. A connecting spring, penetrated by the connecting pins, is provided between the movable support plate and the main buckle plate. Multiple sets of fastening members are provided on the side of the movable support plate away from the spacing mechanism. Each fastening member includes two sets of support posts, fixedly connected to the movable support plate. A rotating connecting rod is provided between the two sets of support posts, with a threaded connecting rod in the middle of the rotating connecting rod. One end of the rod is rotatably connected to a rotating connecting rod. The threaded connecting rod has a protruding thread at one end near the rotating connecting rod, and a rotating connecting block at the other end away from the rotating connecting rod. The rotating connecting block has a thread at its center and is fitted onto the threaded connecting rod. The fastening component also includes a movable fastening block, which has an L-shaped structure. One end of the movable fastening block has a connecting rotating block, which is rotatably connected to the movable fastening block. The other end of the connecting rotating block, away from the movable fastening block, is fixedly connected to the side of the movable fastening block away from the movable support plate. The other end of the movable fastening block has a rectangular groove. Torsion edge rods are provided on both sides of the movable fastening block at the end away from the connecting rotating block, and the torsion edge rods are fixedly connected to the rotating connecting block.

[0020] In one embodiment, a method for an automatic liquid crystal display protective film marking device is also provided, comprising the following steps:

[0021] S1. Use the clamping mechanism to fasten the equipment above the transmission line, start the torsion motor to rotate the conversion mechanism to the horizontal, and adjust the height of the positioning mechanism so that the contact roller contacts the surface of the marked product.

[0022] S2. Start reading the sensor to identify the product, drive the adjustment motor to rotate and change the angle of the movable main rod, thus changing the marking area;

[0023] S3. Start the rotary motor to rotate the corresponding marker to the bottom of the trapezoidal block, and turn on the transmission line to start marking;

[0024] S4. After the sensor identifies different products, change the angle of the movable main rod, and at the same time drive the movable motor to change the shaft distance of the adjusting rod and change the marking style;

[0025] S5. After completion, remove the fixing pin and start the rotating motor to replace or remove the marker.

[0026] The beneficial effects of this invention are as follows: This invention provides an automatic liquid crystal display protective film marking device and method that effectively solves the marking problem of different positions and line types, while being low in cost and easy to maintain and replace. The specific implementation method is as follows:

[0027] After the operator places the main buckle plate on the upper surface of the side of the conveyor line, the bottom buckle plate is attached to the lower surface. The threaded connecting rod is rotated to engage the rotating connecting block with the protruding thread on the threaded connecting rod. Then, the movable buckle block is rotated to vertically fasten the threaded connecting rod into the rectangular groove to complete the fastening. The connecting spring drives the movable support plate to adjust the distance between the bottom buckle plate and the main buckle plate to achieve fastening and fixation.

[0028] When the sensor detects a product passing through the conveyor line, the adjustment motor is activated, driving the torsion ring to rotate. Simultaneously, this rotates the movable main rod connected to the torsion rod, further driving the torsion motor to move. Because the main hanging shaft is longitudinally constrained by the positioning column, it cannot rotate and can only achieve rectangular displacement. As the movable main rod rotates, it drives the hinged torsion motor to move, further causing the positioning column to slide on the longitudinal and transverse movable rods, changing the position of the main hanging shaft, thus changing the marking location, and reducing the pressure on the product. After completion, the torsion motor is activated, driving the interval mechanism to rotate. Because the lifting lever connected during rotation is in the unequal-distance arc-shaped slider groove, the rotation can lower the overall position of the interval mechanism, assisting the marker pen to contact the marking plane.

[0029] After completion, continue to start the rotary motor, rotate the marker to the protrusion of the convex limiting ring, and the thrust spring pushes the elastic buckle to disengage from the movable displacement groove. At the same time, due to the trapezoidal block at the protrusion of the convex limiting ring, the marker will be pushed downward along the guide direction of the dovetail groove, so that it completes the contact marking plane first, realizing the use of different markers for different marking planes. Then start the conveyor line, and the product on the conveyor line rubs against the contact roller, driving the adjusting rod to revolve around the center of the contact roller. However, when the adjusting rod is at the center of the contact roller, the marker draws a straight line, but the adjusting rod is pushed away by the threaded rod on the movable motor and slides away from the contact roller along the variable diameter groove. When the product is at the center of the circumference, the adjusting rod slides within the movable through slot, causing the drive block to slide up and down along the constraint direction of the lifting swing rod and the bending rod. This further drives the hook plate to lift the limit plate, causing the marker to detach from the contact plane and achieve different dashed line drawing. After completion, the hook stabilizing spring helps it return to its original position. At the same time, due to the height of the product, the contact roller makes contact in advance, driving the interval mechanism and the conversion mechanism to push the movable buffer rod into the movable barrel, avoiding direct contact with the marker and damage to the marker. After the reading sensor identifies different products, it changes the angle of the movable main rod and simultaneously drives the movable motor to change the axis distance of the adjusting rod, thus changing the marking style.

[0030] Since the marker pen is a frequently used part, it needs to be replaced promptly. After placing the marker pen to be replaced on the rotating motor's loading tray at the feeding notch, pull out the fixing pin, remove the marker pen clip from the lifting buckle, replace it with the new one, push the connecting spring clip into the movable displacement groove, and reinsert the fixing pin to complete the installation.

[0031] The device has a simple structure and can mark different products at different locations and with different line types through a simple operating mechanism. At the same time, the use of a marker pen can effectively reduce marking costs and maintenance methods, making it practical and economical, which is beneficial to the promotion and use of the equipment. Attached Figure Description

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0033] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0034] Figure 2 This is a three-dimensional structural diagram of the conversion mechanism of the present invention;

[0035] Figure 3 This is a three-dimensional structural diagram of the conversion mechanism of the present invention;

[0036] Figure 4 This is a second partial three-dimensional structural schematic diagram of the conversion mechanism of the present invention;

[0037] Figure 5This is the third partial three-dimensional structural schematic diagram of the conversion mechanism of the present invention;

[0038] Figure 6 This is a three-dimensional structural diagram of the spacing mechanism of the present invention;

[0039] Figure 7 This is the second three-dimensional structural schematic diagram of the interval mechanism of the present invention;

[0040] Figure 8 This is a second-view perspective three-dimensional structural diagram of the spacing mechanism of the present invention;

[0041] Figure 9 This is a three-dimensional structural diagram of the positioning mechanism of the present invention;

[0042] Figure 10 This is a partial three-dimensional structural schematic diagram of the positioning mechanism of the present invention;

[0043] Figure 11 This is the second three-dimensional structural schematic diagram of the positioning mechanism of the present invention;

[0044] Figure 12 This is the third partial three-dimensional structural schematic diagram of the positioning mechanism of the present invention;

[0045] Figure 13 This is a three-dimensional structural diagram of the clamping mechanism of the present invention;

[0046] Figure 14 This is a partial three-dimensional structural schematic diagram of the clamping mechanism of the present invention;

[0047] Figure 15 This is a second-view perspective three-dimensional structural diagram of the clamping mechanism of the present invention.

[0048] Figure Descriptions: 1. Conversion Mechanism; 11. Carrying Tray; 1101. Rotating Ring; 1102. Ring Groove; 12. Protruding Limiting Ring; 121. Feeding Notch; 122. Fixing Pin; 13. Movable Displacement Groove; 14. Thrust Spring; 15. Elastic Buckle; 151. Dovetail Groove; 152. Supporting Recess; 153. Lifting Spring; 16. Lifting Buckle; 161. Dovetail Protrusion; 17. Marker; 18. Rotating Column; 19. Rotary Motor; 191. Motor rotating shaft; 101. Trapezoidal block; 102. Fixed adjusting rod; 103. Limiting plate; 2. Interval mechanism; 21. Main hanging shaft; 22. Bending rod; 23. Contact roller; 231. Sleeve column; 24. Lifting swing rod; 25. Drive block; 251. Hook plate; 252. Stabilizing spring; 253. Movable through slot; 26. Adjusting rod; 27. Movable motor; 271. Threaded rod; 28. Variable diameter slot; 3. Positioning mechanism; 31. 32. Movable main rod; 33. Torsion motor; 34. Main buckle plate; 35. Connecting main shaft; 36. Torsion ring; 37. Torsion rod; 38. Adjustment motor; 39. Movable belt; 30. Transverse movable plate; 31. Transverse movable rod; 32. Transverse movable groove; 33. Longitudinal movable plate; 34. Longitudinal movable rod; 35. Longitudinal movable groove; 36. Positioning column; 37. Extension connecting column; 38. Movable barrel; 39. Movable buffer rod; 384. Lifting lever; 385. Arc-shaped slider; 3851. Arc-shaped groove; 4. Clamping mechanism; 41. Bottom edge buckle plate; 42. Movable support plate; 43. Connecting pin; 431. Connecting spring; 44. Movable buckle block; 441. Rectangular groove; 442. Rotating connecting block; 443. Torsion edge rod; 45. Threaded connecting rod; 451. Convex thread; 452. Support pile; 453. Rotating connecting rod; 46. Connecting rotating block; 5. Reading sensor. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0051] The following is combined with Figure 1-15This invention describes a specific embodiment of an automatic liquid crystal display protective film marking device, comprising:

[0052] Reference Figure 1 , 2 As shown, the conversion mechanism 1 includes a loading tray 11 with six sets of movable displacement grooves 13 arranged in a circular array. A spring buckle 15 is located within the movable main rod 31. The spring buckle 15 has a C-shaped structure with its opening facing towards the periphery of the loading tray 11. Both ends of the spring buckle 15 are slidably connected to the loading tray 11. A dovetail groove 151 is located in the middle of the spring buckle 15. A lifting buckle 16 is also located in the middle of the spring buckle 15. The lifting buckle 16 also has a C-shaped structure and a dovetail protrusion 161. The dovetail protrusion 161 of the lifting buckle 16 passes into the dovetail groove 151. A thrust spring 14 connects the spring buckle 15 and the movable displacement grooves 13.

[0053] Furthermore, the elastic buckle 15 and the lifting buckle 16 can be made of smooth, malleable plastic or the like, which is beneficial because the marker 17 does not need to deform when it is inserted into the lifting buckle 16.

[0054] Beneficially, the elastic buckle 15 is also provided with a support recess 152, which is located above the dovetail protrusion 161. A lifting spring 153 is connected between the support recess 152 and the dovetail protrusion 161.

[0055] As can be seen, when the marker 17 has a lifting buckle 16 inside the elastic buckle 15, the lifting buckle 16 can be driven to slide up and down and return to its original position by the guiding action of the dovetail groove 151, thereby further realizing the implementation of the marker 17.

[0056] Reference Figure 3 , 4 As shown in Figure 5, a protruding limiting ring 12 is provided around the outer periphery of the tray 11. The protruding limiting ring 12 has a teardrop-shaped structure, with the teardrop protrusion facing the clamping mechanism 4. A feeding notch 121 is provided in the middle of the protruding limiting ring 121, and a fixing pin 122 is fastened to the feeding notch 121. A rotating ring 1101 is also provided around the outer periphery of the tray 11. A circumferential groove 1102 is provided inside the protruding limiting ring 12. The protruding limiting ring 12 is fastened to the rotating ring 1101 through the circumferential groove 1102, so that it is slidably connected to the outer periphery of the tray 11.

[0057] As can be seen, the circumferential groove 1102 engaging with the rotating circumferential ring 1101 prevents the protruding limiting ring 12 from detaching from the loading tray 11.

[0058] Reference Figure 3As shown, the tray 11 is also provided with a rotating component, which includes a limiting plate 103. The limiting plate 103 is located above the tray 11. A rotating column 18 is provided in the middle of the limiting plate 103. A rotating motor 19 is provided on the side of the rotating column 18 near the tray 11. A motor rotating shaft 191 is provided on the rotating shaft of the rotating motor 19. The motor rotating shaft 191 is fixedly connected to the middle of the tray 11. A fixed adjusting rod 102 is provided between the limiting plate 103 and the protruding limiting ring 12. The fixed adjusting rod 102 is located on the outer ring of the limiting plate 103. A trapezoidal block 101 is provided in the middle of the fixed adjusting rod 102. The trapezoidal surface of the trapezoidal block 101 is near the side of the protruding limiting ring 12.

[0059] In practice, the marker 17 is rotated and positioned at the protrusion of the protrusion limiting ring 12. The thrust spring 14 pushes the elastic buckle 15 to disengage from the movable displacement groove 13. At the same time, since there is a trapezoidal block 101 at the protrusion of the protrusion limiting ring 12, the marker 17 is pushed to move downward along the guide direction of the dovetail groove 151, so that it completes the contact with the marking plane first, thus realizing the use of different markers 17 for different marking planes.

[0060] Reference Figure 6 , 7 As shown in Figure 8, the interval mechanism 2 is located above the rotating component and is used to assist the conversion mechanism 1 in interval activities. The interval mechanism 2 includes a main hanging shaft 21, with a rotating column 18 passing through and slidably connected to the middle of the main hanging shaft 21. A bending rod 22 is provided on the side of the main hanging shaft 21 away from the main buckle plate 33. The bending rod 22 has an L-shaped structure. A contact roller 23 is provided at the end of the bending rod 22. A sleeve post 231 is provided on the side of the contact roller 23 near the bending rod 22. The sleeve post 231 is rotatably connected to the bending rod 22. A variable diameter groove 28 extends outward from the center of the contact roller 23. An adjusting rod 26 is provided in the middle of the variable diameter groove 28. The adjusting rod 26 passes into the variable diameter groove 28 and is slidably connected to the contact roller 23. A movable motor 27 is provided on the side of the contact roller 23 away from the bending rod 22. A threaded rod 271 is provided on the rotating shaft of the movable motor 27. The threaded rod 271 passes through and is rotatably connected to the middle of the adjusting rod 26.

[0061] Beneficially, the end of the adjusting rod 26 away from the contact roller 23 is also provided with a drive block 25. The drive block 25 has a movable through groove 253 in the middle. The adjusting rod 26 passes through the movable through groove 253 and is slidably connected to the drive block 25. The drive block 25 also has a lifting swing rod 24 in the middle. The end of the lifting swing rod 24 away from the drive block 25 passes through and is slidably connected to the middle of the bending rod 22. The lifting swing rod 24 has a hook plate 251 in the middle. A stabilizing spring 252 is provided between the hook plate 251 and the bending rod 22 and is penetrated by the lifting swing rod 24.

[0062] In practice, the product friction contact roller 23 on the transport line drives the adjusting rod 26 to revolve around the center of the contact roller 23. When the adjusting rod 26 is at the center of the contact roller 23, the marker pen 17 draws a straight line. However, when the adjusting rod 26 is pushed away by the threaded rod 271 on the movable motor 27 and slides away from the circumference center of the contact roller 23 along the variable diameter groove 28, the adjusting rod 26 slides in the movable through groove 253, driving the drive block 25 to slide up and down along the constraint direction of the lifting swing rod 24 and the bending rod 22, further driving the hook plate 251 to lift the limit plate 103 upward, so that the marker pen 17 leaves the contact plane and realizes the drawing of different dashed lines.

[0063] Reference Figure 9 , 11 As shown, the positioning mechanism 3 is located on one side of the spacing mechanism 2. The positioning mechanism 3 includes a main buckle plate 33, and a positioning element is provided above the main buckle plate 33. The positioning element includes two sets of transverse movable plates 36 and two sets of longitudinal movable plates 37. The transverse movable plates 36 and the longitudinal movable plates 37 are connected end to end in sequence, forming a rectangular frame placed above the spacing mechanism 2 and the conversion mechanism 1. The transverse movable plates 36 are provided with transverse movable grooves 362, and the longitudinal movable plates 37 are provided with longitudinal movable grooves 372. Between the two sets of transverse movable plates 36 A transverse movable rod 361 is provided that passes through and is slidably connected to the transverse movable groove 362. A longitudinal movable rod 371 that passes through and is slidably connected to the longitudinal movable groove 372 is provided between the two sets of longitudinal movable plates 37. The longitudinal movable rod 371 and the transverse movable rod 361 are staggered in height. A positioning post 38 is provided at the intersection of their projections. The positioning post 38 is located above the main hanging shaft 21. The positioning post 38 is slidably connected to the longitudinal movable rod 371 and the transverse movable rod 361. An extension connecting post 381 is provided on the side of the positioning post 38 near the interval mechanism 2.

[0064] Reference Figure 10 As shown, a torsion member is provided between the middle of the main buckle plate 33 and the spaced mechanism 2 to assist the conversion mechanism 1 in marking. The torsion member includes a connecting main shaft 34. The main buckle plate 33 is located below the transverse movable plate 36 away from the spaced mechanism 2. Several connecting main shafts 34 are provided between the transverse movable plate 36 and the main buckle plate 33. The number is not unique. A movable main rod 31 is provided on one of the connecting main shafts 34. One end of the movable main rod 31 is rotatably connected to the middle of the connecting main shaft 34. The other end of the movable main rod 31 is provided with a torsion motor 32. The torsion motor 32 is hinged to the movable main rod 31. The rotation shaft of the torsion motor 32 is fixedly connected to the side of the main hanging shaft 21 away from the spaced mechanism 2.

[0065] As can be seen, the torsion main rod 31 can drive the interval mechanism 2 and the positioning column 38 of the positioning component to move, and further drive the conversion mechanism 1 to change its working position.

[0066] Reference Figure 12As shown, advantageously, the positioning mechanism 3 also includes a lifting component, which includes a movable barrel 382. The movable barrel 382 is located at the end of the extended connecting column 381 away from the positioning column 38. A movable buffer rod 383 is provided at the end of the movable barrel 382 away from the extended connecting column 381. The movable buffer rod 383 has a T-shaped structure, with the long rod passing through and slidably connected to the center of the bottom of the movable barrel 382. A lifting latch 384 is provided at the end of the movable buffer rod 383. Arc-shaped sliders 385 are provided on both sides of the lifting latch 384. The arc-shaped sliders 385 are perfectly circular arc blocks, and arc-shaped grooves 3851 are provided on the arc-shaped sliders 385. The lifting latch 384 passes through the arc-shaped grooves 3851 and is slidably connected to the arc-shaped sliders. Block 385, the side of the arc-shaped slider 385 away from the lifting rod 384 is fixedly connected to the movable main rod 31. The straight-line distance between the center of the movable main rod 31 and the connecting end of the arc-shaped slider 385 is less than the straight-line distance between the center of the movable main rod 31 and the far end of the arc-shaped slider 385. The torsion component also includes a torsion ring 35, which is sleeved on the connecting main shaft 34 on which the movable main rod 31 is located. The torsion ring 35 is provided with several torsion rods 351. The number of torsion rods 351 is not unique. The torsion rods 351 pass through and slide on the connecting main shaft 34. The main buckle plate 33 is also provided with an adjustment motor 352. A movable belt 353 is provided between the rotating wheel of the adjustment motor 352 and the torsion ring 35.

[0067] Reference Figure 13 , 14As shown in Figure 15, the clamping mechanism 4 is located below the positioning mechanism 3 and is used to assist the equipment in fastening to the construction platform. The clamping mechanism 4 includes a bottom edge fastening plate 41, which is located on the side of the main fastening plate 33 away from the connecting spindle 34. A movable support plate 42 is provided between the bottom edge fastening plate 41 and the main fastening plate 33. The movable support plate 42 is located on the projection surface of the main fastening plate 33 and away from the spacing mechanism 2. Several connecting nails 43 are provided on the movable support plate 42. The connecting nails 43 penetrate the movable support plate 42 and are fixedly connected to the main fastening plate 33 at one end. A connecting spring 431, which is penetrated by the connecting nails 43, is provided between the movable support plate 42 and the main fastening plate 33. Multiple sets of fastening components are provided on the side of the movable support plate 42 away from the spacing mechanism 2. The fastening components include two sets of support piles 452, which are fixedly connected to the movable support plate 42. A rotating connecting rod 453 is provided between the two sets of support piles 452. A screw is provided in the middle of the rotating connecting rod 453. The threaded connecting rod 45 has one end rotatably connected to the rotating connecting rod 453. The end of the threaded connecting rod 45 near the rotating connecting rod 453 has a protruding thread 451, and the end of the threaded connecting rod 45 away from the rotating connecting rod 453 has a rotating connecting block 442. The center of the rotating connecting block 442 has a thread, and the rotating connecting block 442 is sleeved on the threaded connecting rod 45. The fastening component also includes a movable fastening block 44, which has an L-shaped structure. One end of the movable fastening block 44 has a connecting rotating block 46, which is rotatably connected to the movable fastening block 44. The other end of the connecting rotating block 46 away from the movable fastening block 44 is fixedly connected to the side of the movable fastening block 44 away from the movable support plate 42. The other end of the movable fastening block 44 has a rectangular groove 441. The two sides of the movable fastening block 44 away from the connecting rotating block 46 have torsion side rods 443, which are fixedly connected to the rotating connecting block 442.

[0068] Reference Figure 1 As shown, the reading sensor 5 is fixedly connected to the side of the main buckle plate 33 near the interval mechanism 2, and is used to identify the position of the workpiece below the conversion mechanism 1.

[0069] Specifically, the reading sensor 5 is existing technology, mainly used to start and stop the device through signal recognition. At present, it can be achieved by various auxiliary means, and it is not the inventive point of this invention, so it will not be described in detail here.

[0070] Advantageously, a method for an automatic liquid crystal display protective film marking device is also provided, comprising the following steps:

[0071] S1. Use the clamping mechanism 4 to fasten the equipment above the transmission line, start the torsion motor 32 to rotate the conversion mechanism 1 to the horizontal, adjust the height of the positioning mechanism 3 so that the contact roller 23 contacts the surface of the marked product.

[0072] S2. Start reading sensor 5 to identify the product, drive the adjustment motor 352 to rotate and change the angle of the movable main rod 31, and change the marking area;

[0073] S3. Start the rotary motor 19 to rotate the corresponding marker 17 to the bottom of the trapezoidal block 101, and start the transmission line to begin marking;

[0074] S4. After the sensor 5 identifies different products, change the angle of the movable main rod 31, and at the same time drive the movable motor 27 to change the shaft distance of the adjusting rod 26 and change the marking style;

[0075] S5. After completion, remove the fixing pin 122, start the rotating motor 19 to replace or remove the marker pen 17.

[0076] Working principle of this invention:

[0077] After the operator places the main buckle plate 33 on the upper surface of the side of the conveyor line, the bottom buckle plate 41 is attached to the lower surface. The threaded connecting rod 45 is rotated to engage the rotating connecting block 442 with the protruding thread 451 on the threaded connecting rod 45. Then, the movable buckle block 44 is rotated to vertically fasten the threaded connecting rod 45 into the rectangular groove 441 to complete the fastening. The connecting spring 431 drives the movable support plate 42 to adjust the distance between the bottom buckle plate 41 and the main buckle plate 33 to achieve fastening and fixation.

[0078] When sensor 5 detects a product passing through the transport line, it starts the adjustment motor 352, which drives the torsion ring 35 to rotate. At the same time, it drives the movable main rod 31 connected to the torsion rod 351 to rotate, which in turn drives the torsion motor 32 to move. Since the main hanging shaft 21 is constrained by the longitudinal positioning column 38, it cannot rotate and can only achieve rectangular displacement. As the movable main rod 31 rotates, it drives the hinged torsion motor 32 to move, which in turn drives the positioning column 38 to slide on the longitudinal movable rod 371 and the transverse movable rod 361, changing the position of the main hanging shaft 21, thereby changing the marking location and reducing the pressure on the product. After completion, the torsion motor 32 is started, which drives the interval mechanism 2 to rotate. Since the lifting lever 384 connected during the rotation is in the groove of the arc-shaped slider 385 with unequal distances, the rotation can lower the overall position of the interval mechanism 2, assisting the marker pen 17 to contact the marking plane.

[0079] After completion, the rotary motor 19 is restarted, and the marker 17 is rotated to the protrusion of the convex limiting ring 12. The thrust spring 14 pushes the elastic buckle 15 to disengage from the movable displacement groove 13. At the same time, due to the trapezoidal block 101 at the protrusion of the convex limiting ring 12, the marker 17 is pushed downward along the guide direction of the dovetail groove 151, so that it completes the contact marking plane first, realizing the use of different markers 17 for different marking planes. Then the conveyor line is started, and the product on the conveyor line rubs against the contact roller 23, driving the adjusting rod 26 to revolve around the center of the contact roller 23. However, when the adjusting rod 26 is at the center of the contact roller 23, the marker 17 draws a straight line. But the adjusting rod 26 is pushed away by the threaded rod 271 on the movable motor 27 and slides away from the contact roller along the variable diameter groove 28. When the product is at the center of the circumference, the adjusting rod 26 slides within the movable through groove 253, causing the drive block 25 to slide up and down along the constraint direction of the lifting swing rod 24 and the bending rod 22. This further causes the hook plate 251 to lift the limiting plate 103 upward, causing the marker pen 17 to leave the contact plane and achieve different dotted line drawing. After completion, the hook stabilizing spring 252 helps it return to its original position. At the same time, due to the height of the product, the contact roller 23 makes contact in advance, driving the interval mechanism 2 and the conversion mechanism 1 to push the movable buffer rod 383 into the movable barrel 382 to avoid direct contact with the marker pen 17 and damage to the marker pen 17. After the reading sensor 5 identifies different products, it changes the angle of the movable main rod 31 and drives the movable motor 27 to change the axis of the adjusting rod 26, thus changing the marking style.

[0080] Since the marker 17 is an easy-to-use part and needs to be replaced immediately, after placing the marker 17 to be replaced on the rotating motor 19 on the loading tray 11 at the feeding notch 121, pull out the fixing pin 122, remove the marker 17 from the lifting buckle 16, replace it with the connecting spring buckle 15 and push it into the movable displacement groove 13, and reinsert the fixing pin 122 to complete the installation.

[0081] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0082] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An automatic liquid crystal display protective film marking device, characterized in that: include A conversion mechanism (1) includes a loading tray (11) with multiple sets of movable displacement grooves (13) arranged in a circular array on the loading tray (11). Each movable displacement groove (13) contains a spring-loaded buckle (15) with a C-shaped structure. The opening of the spring-loaded buckle (15) faces towards the periphery of the loading tray (11). Both ends of the spring-loaded buckle (15) are slidably connected to the loading tray (11). A dovetail groove (151) is provided in the middle of the spring-loaded buckle (15). A lifting buckle (16) is also provided in the middle of the spring-loaded buckle (15), which also has a C-shaped structure. A dovetail protrusion (161) is provided on the lifting buckle (16). Some dovetail protrusions (161) pass into the dovetail groove (151). A thrust spring (14) is connected between the elastic buckle (15) and the movable displacement groove (13). A protruding limiting ring (12) is provided around the outer periphery of the tray (11). The protruding limiting ring (12) has a teardrop-shaped structure. A feeding notch (121) is provided in the middle of the protruding limiting ring (121). A fixing pin (122) is fastened to the feeding notch (121). A rotating ring (1101) is also provided around the outer periphery of the tray (11). A ring groove (1102) is provided inside the protruding limiting ring (12). The protruding limiting ring (12) is fastened to the rotating ring (1101) through the ring groove (1102) so that it is slidably connected to the outer periphery of the tray (11). A rotating component is also provided on the tray (11). An interval mechanism (2) is located above the rotating member to assist the conversion mechanism (1) in performing interval activities; Positioning mechanism (3), the positioning mechanism (3) is located on one side of the spacing mechanism (2), the positioning mechanism (3) includes a main buckle plate (33), a positioning element is provided above the main buckle plate (33), and a torsion element is provided between the middle of the main buckle plate (33) and the spacing mechanism (2) to assist the conversion mechanism (1) in marking; Clamping mechanism (4), which is located below positioning mechanism (3), is used to assist the automatic liquid crystal display protective film marking device in fastening to the construction platform; A reading sensor (5) is fixedly connected to the side of the main buckle plate (33) near the interval mechanism (2) to identify the position of the workpiece below the conversion mechanism (1); The rotating component includes a limiting disk (103) located above the loading tray (11). A rotating column (18) is provided in the middle of the limiting disk (103). A rotating motor (19) is provided on the side of the rotating column (18) near the loading tray (11). A motor rotating shaft (191) is provided on the rotating shaft of the rotating motor (19). The motor rotating shaft (191) is fixedly connected to the middle of the loading tray (11). A fixed adjusting rod (102) is provided between the limiting disk (103) and the protruding limiting ring (12). The fixed adjusting rod (102) is located on the outer ring of the limiting disk (103). A trapezoidal block (101) is provided in the middle of the fixed adjusting rod (102). The trapezoidal surface of the trapezoidal block (101) is near the side of the protruding limiting ring (12). The elastic buckle (15) is also provided with a support recess (152), which is located above the dovetail protrusion (161). A lifting spring (153) is connected between the support recess (152) and the dovetail protrusion (161). The spacing mechanism (2) includes a main hanging shaft (21), through which the rotating column (18) is slidably connected to the middle of the main hanging shaft (21). A bending rod (22) is provided on the side of the main hanging shaft (21) away from the main buckle plate (33). The bending rod (22) has an L-shaped structure. A contact roller (23) is provided at the end of the bending rod (22). A sleeve post (231) is provided on the side of the contact roller (23) near the bending rod (22). The sleeve post (231) is rotatably connected to the bending rod (22). The contact roller (23) has a variable diameter groove (28) extending axially outward. An adjusting rod (26) is provided in the middle of the variable diameter groove (28). The adjusting rod (26) passes through the variable diameter groove (28) and is slidably connected to the contact roller (23). A movable motor (27) is provided on the side of the contact roller (23) away from the bending rod (22). A threaded rod (271) is provided on the rotating shaft of the movable motor (27). The threaded rod (271) passes through and is rotatably connected to the middle of the adjusting rod (26). The adjusting rod (26) is provided with a driving block (25) at the end away from the contact roller (23). The driving block (25) has a movable through groove (253) in the middle. The adjusting rod (26) passes through the movable through groove (253) and is slidably connected to the driving block (25). The driving block (25) is also provided with a lifting swing rod (24) in the middle. The end of the lifting swing rod (24) away from the driving block (25) passes through and is slidably connected to the middle of the bending rod (22). The lifting swing rod (24) has a hook plate (251) in the middle. A stabilizing spring (252) is provided between the hook plate (251) and the bending rod (22) and is penetrated by the lifting swing rod (24).

2. The automatic liquid crystal display protective film marking device according to claim 1, characterized in that: The positioning component includes two sets of transverse movable plates (36) and two sets of longitudinal movable plates (37). The transverse movable plates (36) and the longitudinal movable plates (37) are connected end to end in sequence, forming a rectangular frame placed above the spacing mechanism (2) and the conversion mechanism (1). The transverse movable plates (36) are provided with transverse movable grooves (362), and the longitudinal movable plates (37) are provided with longitudinal movable grooves (372). A transverse movable rod (361) is provided between the two sets of transverse movable plates (36) and is slidably connected to the transverse movable grooves (362). A longitudinal movable rod (371) is provided between the two sets of longitudinal movable plates (37) and is slidably connected to the longitudinal movable groove (372). The longitudinal movable rod (371) and the transverse movable rod (361) are staggered in height, and a positioning post (38) is provided at their projection intersection. The positioning post (38) is located above the main hanging shaft (21). The positioning post (38) is slidably connected to the longitudinal movable rod (371) and the transverse movable rod (361). An extension connecting post (381) is provided on the side of the positioning post (38) near the interval mechanism (2).

3. The automatic liquid crystal display protective film marking device according to claim 2, characterized in that: The torsion member includes a connecting spindle (34), the main buckle plate (33) is located below the transverse movable plate (36) away from the interval mechanism (2), and a plurality of connecting spindles (34) are provided between the transverse movable plate (36) and the main buckle plate (33). One of the connecting spindles (34) is provided with a movable main rod (31). One end of the movable main rod (31) is rotatably connected to the middle of the connecting spindle (34), and the other end of the movable main rod (31) is provided with a torsion motor (32). The torsion motor (32) is hinged to the movable main rod (31), and the rotation shaft of the torsion motor (32) is fixedly connected to the side of the main hanging shaft (21) away from the interval mechanism (2).

4. The automatic liquid crystal display protective film marking device according to claim 3, characterized in that: The positioning mechanism (3) further includes a lifting component, which includes a movable barrel (382). The movable barrel (382) is located at the end of the extension connecting column (381) away from the positioning column (38). A movable buffer rod (383) is provided at the end of the movable barrel (382) away from the extension connecting column (381). The movable buffer rod (383) has a T-shaped structure. The long rod of the movable buffer rod (383) passes through and is slidably connected to the center of the bottom of the movable barrel (382). A lifting latch (384) is provided at the end of the movable buffer rod (383). Arc-shaped sliders (385) are provided on both sides of the lifting latch (384). The arc-shaped sliders (385) are circular arc blocks. Arc-shaped grooves (3851) are provided on the arc-shaped sliders (385). The lifting latch (384) passes through the arc-shaped grooves (3851) and... The sliding connection is to the arc-shaped slider (385). The side of the arc-shaped slider (385) away from the lifting rod (384) is fixedly connected to the main hanging shaft (21). The straight distance between the center of the main hanging shaft (21) and the connection end of the arc-shaped slider (385) is less than the straight distance between the center of the main hanging shaft (21) and the far end of the arc-shaped slider (385). The torsion member also includes a torsion ring (35). The torsion ring (35) is sleeved on the connecting main shaft (34) with the movable main rod (31). The torsion ring (35) is provided with a plurality of torsion rods (351). The torsion rods (351) pass through and are slidably connected to the movable main rod (31). The main buckle plate (33) is also provided with an adjustment motor (352). A movable belt (353) is provided between the rotating wheel of the adjustment motor (352) and the torsion ring (35).

5. The automatic liquid crystal display protective film marking device according to claim 3, characterized in that: The clamping mechanism (4) includes a bottom edge buckle plate (41), which is located on the side of the main buckle plate (33) away from the connecting spindle (34). A movable support plate (42) is provided between the bottom edge buckle plate (41) and the main buckle plate (33). The movable support plate (42) is located on the projection plane of the main buckle plate (33) and away from the spacing mechanism (2). A plurality of connecting pins (43) are provided on the movable support plate (42). One end of each connecting pin (43) is fixedly connected to the main buckle plate (34) through the movable support plate (42). 3) A connecting spring (431) is provided between the movable support plate (42) and the main buckle plate (33) and is penetrated by the connecting nail (43). Multiple sets of fasteners are provided on the side of the movable support plate (42) away from the spacing mechanism (2). The fasteners include two sets of support piles (452). The support piles (452) are fixedly connected to the movable support plate (42). A rotating connecting rod (453) is provided between the two sets of support piles (452). A threaded connecting rod (45) is provided in the middle of the rotating connecting rod (453). One end of the threaded connecting rod (45) is screwed... The threaded connecting rod (45) is connected to the rotating connecting rod (453). One end of the threaded connecting rod (45) near the rotating connecting rod (453) has a protruding thread (451), and the other end of the threaded connecting rod (45) away from the rotating connecting rod (453) has a rotating connecting block (442). The rotating connecting block (442) has a thread at its center and is fitted onto the threaded connecting rod (45). The fastening component also includes a movable fastening block (44), which has an L-shaped structure and a connecting rotating block at one end. 46), the connecting rotating block (46) is rotatably connected to the movable buckle block (44), and the other end of the connecting rotating block (46) away from the movable buckle block (44) is fixedly connected to the bottom edge buckle plate (41) away from the movable support plate (42). The other end of the movable buckle block (44) is provided with a rectangular groove (441). The two sides of the movable buckle block (44) away from the connecting rotating block (46) are provided with torsion side rods (443), and the torsion side rods (443) are fixedly connected to the rotating connecting block (442).

6. The method used in the automatic liquid crystal display protective film marking device according to claim 4, characterized in that, Includes the following steps: S1. Use the clamping mechanism (4) to fasten the automatic LCD protective film marking device to the upper part of the transmission line, start the torsion motor (32) to rotate the conversion mechanism (1) to the horizontal, adjust the height of the positioning mechanism (3) so that the contact roller (23) contacts the surface of the marked product; S2. Start reading sensor (5) to identify product, drive adjustment motor (352) to rotate to change the angle of movable main rod (31) and change the marking area; S3. Start the rotary motor (19) to rotate the corresponding marker to below the trapezoidal block (101) and start marking by turning on the transmission line; S4. After the sensor (5) identifies different products, change the angle of the movable main rod (31), and at the same time drive the movable motor (27) to change the wheelbase of the adjusting rod (26) and change the marking style; S5. After completion, remove the fixing pin (122) and start the rotating motor (19) to replace or remove the marker.

Images