Spectacle case labeling equipment

Abstract

The utility model discloses spectacle case labeling equipment, and relates to the field of labeling equipment.The spectacle case labeling equipment comprises a base and a labeling mechanism slidably arranged at the top end of the base and used for labeling spectacle cases, a first motor providing power for the labeling mechanism is fixedly arranged at the top end of the labeling mechanism, and fixing plates are symmetrically and fixedly arranged in the middle of the top end of the base; an adjusting mechanism is fixedly arranged at the end, close to the labeling mechanism, of the side wall of one fixing plate, a centering mechanism for centering the spectacle case is fixedly arranged on the side, away from the labeling mechanism, of the top end of the base, and a second motor for providing power for the centering mechanism is fixedly arranged at the top end of the centering mechanism; the position of the nut is adjusted by rotating the knob to enable the pressure head to adapt to different spectacle case heights, the first motor drives the pressure head to press downwards and adapt to the curved surface of the spectacle case, the problems of skewing and wrinkling of traditional labeling are solved, the fixing rod and the first spring are matched for buffering and damping, label tension under different humidity is adapted, and the pressure head is prevented from impacting and damaging the spectacle case and a label.

Description

Technical Field

[0001] This application relates to the field of labeling equipment, and more particularly to a labeling equipment for eyeglass cases. Background Technology

[0002] Labeling equipment is an automated production system that moves products to be labeled along a preset track in an orderly manner. At the same time, the matching labeling machine affixes the label to the product surface according to the specified position and angle. It is widely used in the product packaging process in many fields such as food, beverage, daily chemical, and pharmaceutical. Labeling equipment for eyeglass cases is a device specifically designed for labeling eyeglass cases.

[0003] In eyeglasses production workshops, fluctuations in temperature and humidity can easily cause label materials to shrink or expand, resulting in quality problems such as misaligned labels and wrinkles. The labeling effect is poor on irregularly shaped packaging (such as flexible packaging) or curved surfaces, and the adaptability to eyeglass cases of different sizes is poor, making it difficult to meet diverse production needs. Utility Model Content

[0004] To improve the labeling effect and solve the problem of adaptability to different sizes of eyeglass cases, this application provides an eyeglass case labeling device.

[0005] The eyeglass case labeling device provided in this application adopts the following technical solution:

[0006] A labeling device for eyeglass cases includes a base and a labeling mechanism slidably disposed on the top of the base for applying labels to the eyeglass cases. A first motor providing power to the labeling mechanism is fixed to the top of the labeling mechanism. A fixing plate is symmetrically fixed to the center of the top of the base. An adjustment mechanism is fixed to one side wall of the fixing plate near the labeling mechanism. A centering mechanism for centering the eyeglass cases is fixed to the top of the base away from the labeling mechanism. A second motor providing power to the centering mechanism is fixed to the top of the centering mechanism. The labeling mechanism includes a fixed frame and an adjusting block rotatably disposed on the bottom surface of the fixed frame. A screw is rotatably installed through the middle of the adjusting block. A nut that slides on the inner wall of the adjusting block is threaded onto the middle of the screw. A transmission rod is rotatably installed at the bottom end of the nut. A rotating shaft is rotatably installed at the bottom end of the transmission rod. A pressing column is rotatably installed at the bottom end of the rotating shaft. A pressure head is movably installed at the bottom end of the pressing column. The centering mechanism includes a fixed block two and a cam rotatably installed on the top surface of the fixed block two. A rotating rod fixed to the output end of the motor two is fixed at the top end of the cam. Centering blocks are movably installed on both sides of the cam. Spring two is symmetrically fixed on opposite sides of the two centering blocks.

[0007] By adopting the above technical solution, the labeling mechanism, driven by motor one, drives the pressure head to perform labeling operation on the eyeglass case through internal adjustment blocks, screws and other components. The centering mechanism is driven by motor two, and the rotation of the cam drives the centering blocks on both sides to cooperate with spring two to achieve the centering and positioning of the eyeglass case.

[0008] Preferably, the top center of the fixed frame is rotatably provided with a fixed shaft that is fixed to the top center of the adjusting block, the top of the fixed shaft is fixed to the output end of the motor, and a knob is fixed at one end of the screw located outside the adjusting block.

[0009] By adopting the above technical solution, the fixed shaft drives the adjusting block to rotate under the drive of the motor, and the rotating knob drives the screw to rotate, which is used to adjust the position of the nut to adapt to different height eyeglass cases and assist in the labeling operation.

[0010] Preferably, two rotating blocks are symmetrically fixed at both ends of the transmission rod. A rotating block is rotatably disposed on the outer side of the rotating block away from the transmission rod. The top end of one rotating block is fixed to the bottom end of the nut, and the bottom end of the other rotating block is fixed to the top end of the rotating shaft.

[0011] By adopting the above technical solution, rotating block one and rotating block two cooperate to realize the transmission between the transmission rod and the nut and rotating shaft, and transmit the movement of the nut to the rotating shaft through the transmission rod, driving the pressing column and the pressing head to complete the labeling.

[0012] Preferably, a groove is fixedly provided at the lower end of the inner wall of the base, and a pressing block adapted to the shape of the groove is slidably disposed in the groove.

[0013] By adopting the above technical solution, the groove provides a sliding track for the pressing block, allowing the pressing block to slide along a specific path for pressing and labeling the eyeglass case.

[0014] Preferably, the bottom end of the pressing column is movably provided with a fixing rod that is fixed to the pressing head, and a spring is sleeved on the outside of the fixing rod. The two ends of the spring are respectively fixed to the top end of the pressing head and the bottom end of the pressing column.

[0015] By adopting the above technical solution, the fixing rod connects the pressing column and the pressing head, and the spring is fitted on the fixing rod, which can play a buffering and shock-absorbing role when the pressing head contacts the eyeglass case for labeling, ensuring stable labeling pressure and avoiding damage to the eyeglass case by the pressing head impact, and adapting to the label tension under different humidity conditions.

[0016] Preferably, an air supply pipe is fixedly provided through the side of the pressure head, a bidirectional air pump is fixedly provided on one side of the lower end of the fixing frame, the air inlet of the bidirectional air pump is fixedly connected to the end of the air supply pipe away from the pressure head, an electric slide rail is fixedly provided on both sides of the top of the base directly below the labeling mechanism, and a slider that slides on the electric slide rail is fixedly provided on both sides of the bottom end of the fixing frame.

[0017] By adopting the above technical solution, the bidirectional air pump supplies or evacuates air to the pressure head through the air supply pipe. In conjunction with the electric slide rail and the slider, the fixed frame and the pressure head can move flexibly to achieve accurate labeling and adapt to different labeling needs.

[0018] Preferably, the adjustment mechanism includes an electric slide rail two fixed to the side wall of a fixed plate and a slider two slidably disposed on one side of the electric slide rail two. An electric slide rail three is fixedly disposed on the side of the slider two away from the electric slide rail two. A slider three is slidably disposed on the side of the electric slide rail three away from the slider two. A connecting block is fixedly disposed on the side of the slider three away from the electric slide rail three. A separation plate two is fixedly disposed at the end of the connecting block away from the slider three.

[0019] By adopting the above technical solution, the adjustment mechanism drives the sliders 2 and 3 to move via electric slide rails 2 and 3 respectively, thereby enabling the connecting block and the separating plate 2 to flexibly adjust their positions in different directions to meet the adjustment requirements when labeling the eyeglass case.

[0020] Preferably, the two fixing plates are located between the labeling mechanism and the centering mechanism at the top of the base. A separation plate is fixedly provided in the middle of the side wall of one of the fixing plates. A feeding roller for mounting the label roll is rotatably provided on the upper end of the opposite side of the two fixing plates. A recycling roller for recycling the label backing paper is rotatably provided at the far end of the opposite side of the two fixing plates. A fixing block is fixedly provided at the top of the base between the fixing plate at the top of the base and the centering mechanism. A distance measuring sensor for measuring the length of the eyeglass case is fixedly provided on the inner top surface of the fixing block.

[0021] By adopting the above technical solution, the fixed plate supports the separation plate, the feeding roller and the recycling roller, realizing label feeding and bottom paper recycling. The distance sensor on the fixed block is used to measure the length of the eyeglass case to assist in accurate labeling.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By rotating the knob, the screw is driven to rotate, and the nut is adjusted to a suitable position, so that the upper end of the transmission rod moves synchronously, making the height of the pressure head adaptable to different eyeglass cases. By starting the motor, the fixed shaft is driven to rotate the adjusting block and the nut, so that the transmission rod drives the pressing column and the pressing block to slide in the slide groove, so that the pressure head presses down and adapts to the curved surface of the eyeglass case by relying on the internal airbag, thereby realizing the labeling of eyeglass cases with different heights, curved surfaces or irregular shapes. This solves the problems of labeling skew and wrinkling in traditional equipment. Through the cooperation of the fixed rod, the pressing column, the pressure head and the spring, it is easy to buffer and absorb shock when the pressure head contacts the eyeglass case for labeling, adapt to the label tension under different humidity, ensure stable labeling pressure and avoid the pressure head impact damaging the eyeglass case and label, and improve the labeling effect.

[0024] 2. By starting the motor, the rotating rod is driven to rotate, which drives the cam to rotate synchronously. This makes the minimum diameter direction of the cam parallel to the track, thereby releasing the resistance of the centering block. At this time, the spring returns and pulls the centering block to move towards the center of the track, so that the centering block clamps the eyeglass case and keeps it in the center area of ​​the conveyor belt. This achieves precise centering of eyeglass cases of different sizes and solves the problem of labeling misalignment caused by the variety of eyeglass case sizes. Attached Figure Description

[0025] Figure 1 This is a frontal axonometric view of the present application;

[0026] Figure 2 This is a schematic diagram of the rear-view axis of this application;

[0027] Figure 3 This is a schematic diagram of the right axial view of this application;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 This is a schematic diagram of the base structure of this application;

[0030] Figure 6 This is a schematic diagram of the labeling mechanism structure in this application;

[0031] Figure 7 This is a schematic diagram of the internal structure of the adjustment block in this application;

[0032] Figure 8 This is a schematic diagram of the structure of rotating block one and rotating block two in this application;

[0033] Figure 9 This is a schematic diagram of the centering mechanism structure in this application.

[0034] Reference numerals in the attached diagram: 1. Base; 2. Labeling mechanism; 3. Centering mechanism; 4. Adjustment mechanism; 5. Motor 1; 6. Motor 2; 7. Fixing block 1; 8. Distance sensor; 9. Fixing plate; 10. Feeding roller;

[0035] 11. Recycling roller; 12. Separating plate 1; 13. Two-way air pump; 14. Electric slide rail 1; 15. Circular hole 1;

[0036] 201. Fixing frame; 202. Adjusting block; 203. Pressing block; 204. Screw; 205. Rotating block one; 206. Rotating block two; 207. Transmission rod; 208. Pressing column; 209. Pressing head; 210. Fixing rod;

[0037] 211. Spring 1; 212. Slider 1; 213. Nut; 214. Fixed shaft; 215. Knob; 216. Cross shaft; 217. Slide groove; 218. Circular hole 2; 219. Rotating shaft; 220. Air supply pipe;

[0038] 301. Fixed block two; 302. Centering block; 303. Cam; 304. Rotating rod; 305. Spring two;

[0039] 401. Electric slide rail two; 402. Slider two; 403. Electric slide rail three; 404. Slider three; 405. Connecting block; 406. Separating plate two. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1 - Figure 9 This application will be described in further detail.

[0041] This application discloses an eyeglass case labeling device.

[0042] Reference Figure 1 - Figure 3 , Figure 5 A labeling device for eyeglass cases includes a base 1 and a labeling mechanism 2 for applying labels to eyeglass cases, which is slidably disposed on the top of the base 1. Two tracks are symmetrically arranged on both sides of the top of the base 1, with the middle section of each track forming a centering area, and the two ends of each track forming a guide area (e.g., ...). Figure 5(As shown), a circular hole 15 is symmetrically provided on the inner sidewall of the two parallel tracks located in the centering area. An electric slide rail 14 is symmetrically installed at the top of the base 1, directly below the labeling mechanism 2. The surface of the electric slide rail 14 has protrusions to provide guidance and a sliding track for the labeling mechanism 2. A conveyor belt is provided at the top of the base 1, in the middle of the tracks and the two electric slide rails 14. The width of the conveyor belt is the same as the distance between the two electric slide rails 14. A motor 5 is fixed at the top of the labeling mechanism 2, providing power to the labeling mechanism 2. A fixing plate 9 is symmetrically fixed at the center of the top of the base 1. The shape of the fixing plate 9 (as shown) is... Figure 1 (As shown), it is used to provide support for the component.

[0043] Before use, the device requires the base 1 to be installed on the production line between the assembly and packaging stations. A labeling mechanism 2 is slidably installed on one end of the electric slide rail 14 on the base 1. The centering mechanism 3 is installed at the feed inlet of the top track of the base 1. A conveyor belt is installed between the top track of the base 1 and the two electric slide rails 14. Fixing plates 9 are symmetrically fixed to the top of the track at the center of the top of the base 1. An adjusting mechanism 4 is fixed to one side of one of the fixing plates 9. A feeding roller 10 and a recovery roller 11 are installed between the two fixing plates 9. A synchronous belt assembly and a motor are installed at the same end of the feeding roller 10 and the recovery roller 11, so that the feeding roller 10 and the recovery roller 11 are driven synchronously. One side of the fixed plate 9 is located below the feeding roller 10 and the separation plate 12 is fixed. The distance sensor 8 is fixed to the top surface of the bracket fixing block 7 and the distance measuring direction is adjusted to align with the conveyor belt. The motor 5 and the motor 6 are respectively connected to the labeling mechanism 2 and the centering mechanism 3. The label roll is installed on the feeding roller 10 so that the label paper passes around the end of the separation plate 12 near the separation plate 406 and the middle of the recovery roller 11 in sequence.

[0044] One bottom end of the fixing plate 9 is fixedly connected to the top of the top track of the base 1 near the labeling mechanism 2, and the other bottom end of the fixing plate 9 is suspended above the electric slide rail 14 (e.g., Figure 1 As shown), an adjustment mechanism 4 is fixedly provided on one end of the side wall of a fixed plate 9 near the labeling mechanism 2, and a separation plate 12 (shaped like...) is fixedly provided in the middle of the inner side wall of a fixed plate 9. Figure 3As shown), the two fixed plates 9 are used to guide the label paper and cooperate with the separating plate 406 to separate the label and the backing paper. The upper end of the opposite side of the two fixed plates 9 is rotatably provided with a feeding roller 10, which is used to install the label roll. The opposite side of the two fixed plates 9 is rotatably provided with a recovery roller 11, which is used to recover the label backing paper. The top of the base 1 is fixedly provided with a centering mechanism 3 on the side away from the labeling mechanism 2. The centering mechanism 3 is located in the centering area of ​​the top track of the base 1 and is used to center the eyeglass case that enters the track. The top of the centering mechanism 3 is fixedly provided with a motor 6, which is used to provide power to the centering mechanism 3. The two fixed plates 9 are located between the labeling mechanism 2 and the centering mechanism 3 at the top of the base 1.

[0045] A fixing block 7 is fixedly installed at the top of the base 1, between the fixing plate 9 and the centering mechanism 3. The fixing block 7 spans above the two parallel tracks. The bottom ends of the fixing block 7 are fixedly connected to the top of the two tracks respectively. The fixing block 7 is located between the fixing plate 9 and the centering mechanism 3 at the top of the base 1. A distance sensor 8 is fixedly installed on the inner top surface of the fixing block 7. The distance sensor 8 is a TF-Luna laser radar distance sensor produced by Microsnow Electronics. It has the characteristics of low power consumption, small size and easy integration. It can accurately realize non-contact distance and length measurement of dynamic / static objects. It is used to measure the length of the glasses case passing under the distance sensor 8.

[0046] In use, the conveyor belt is turned on, causing the glasses case to move along the top track of the base 1 to the centering area. The motor 6 is started to drive the centering mechanism 3 to center, clamp, and release the glasses case. When the glasses case passes under the distance sensor 8, the distance sensor 8 outputs a distance signal to the PLC controller in real time. The PLC calculates the length of the glasses case and generates a position offset. The servo driver of the electric slide rail 14 controls the slider 212 to move, and the sliding position of the labeling mechanism 2 is adjusted synchronously to make the labeling mechanism 2 the center position of the glasses case. The conveyor belt pauses once after the glasses case has completely passed the track. After the centering mechanism 3 completes the clamping and releasing action, the feeding roller 10 and the recycling roller 11 rotate synchronously and intermittently, so that the label moves with the bottom paper to the separation plate 406. The adjustment mechanism 4 moves the separation plate 406 to the position directly below the pressure head 209. The bidirectional air pump 13 is turned on to adsorb the label. When the glasses case enters the labeling area, the pressure head 209 presses down and releases the label, so that the label is accurately pasted on the surface of the glasses case.

[0047] Reference Figure 6 - Figure 8 The labeling mechanism 2 includes a fixed frame 201 and an adjusting block 202 rotatably disposed on the bottom surface of the fixed frame 201. The fixed frame 201 is generally T-shaped, and the shape of the fixed frame 201 is as follows (e.g., Figure 6As shown, a circular hole is provided at the center of the top of the fixing frame 201. A fixing shaft 214 is rotatably mounted at the center of the top of the fixing frame 201. The lower end of the fixing shaft 214 rotatably passes through the circular hole. The bottom end of the fixing shaft 214 is fixed to the center of the top of the adjusting block 202. The bottom end of the motor 5 is fixed to the center of the top of the fixing frame 201. The top end of the fixing shaft 214 is fixed to the output end of the motor 5. A circular hole is provided on the inner wall of one side of the adjusting block 202. A circular hole is rotatably mounted at the center of the adjusting block 202. A screw 204 is inserted through a circular hole 2 at one end, and the other end of the screw 204 away from the circular hole 2 is rotatably mounted on the inner wall of the adjusting block 202 on the side opposite to the circular hole 2. A knob 215 is fixedly mounted on the other end of the screw 204 outside the adjusting block 202. The knob 215 is used to drive the screw 204 to rotate. A nut 213 is threaded on the middle part of the screw 204. The shape of the nut 213 is adapted to the inner wall of the adjusting block 202. The nut 213 is slidably mounted on the inner wall of the adjusting block 202.

[0048] In use, turning knob 215 rotates screw 204, driving nut 213 to adjust to a suitable position to accommodate eyeglass cases of different heights or with large height differences. Turning on motor 5 drives fixed shaft 214 to rotate, causing adjusting block 202 and nut 213 to rotate on the bottom surface inside fixed frame 201. Since rotating block 1 205 and rotating block 206 rotate around the four symmetrical cylinders of cross shaft 216, they in turn drive the bottom of nut 213... Rotating blocks 205 and 206 rotate, causing the transmission rod 207 to rotate synchronously, which in turn causes the rotating shaft 219 to rotate inside the upper end of the pressing column 208. Since the pressing column 208 is fixed to the middle of the pressing block 203 and the pressing block 203 slides in the slide groove 217, the pressing column 208 and the pressing block 203 are driven to slide longitudinally back and forth in the slide groove 217, causing the fixed rod 210 at the bottom of the pressing column 208 to drive the pressing head 209 to move back and forth.

[0049] A transmission rod 207 is rotatably mounted at the bottom end of the nut 213. Rotating blocks 206 are symmetrically fixed at both ends of the transmission rod 207. The rotating blocks 206 are U-shaped in overall form. The shape of the rotating blocks 206 is as follows (e.g., ...). Figure 8 As shown), a rotating block 205 is rotatably mounted on the outer side of the end of the rotating block 206 away from the transmission rod 207. The shape of the rotating block 205 is as follows (e.g., Figure 8As shown, the top of the rotating block 205 near the adjusting block 202 of the transmission rod 207 is fixed to the bottom of the nut 213. Circular holes 218 are symmetrically provided at opposite ends of the rotating block 205 and the rotating block 206. A cross shaft 216 is provided inside the rotating block 205. The center of the cross shaft 216 is a circular block, and cylinders are fixed on its four sides. The four cylinders of the cross shaft 216 are respectively rotatably disposed in the circular holes 218 on the rotating block 205 and the rotating block 206. The rotating block 205, the rotating block 206, and the cross shaft 216 are all connected. Shaft 216 is assembled into a steering shaft; a slide groove 217 is longitudinally fixed on the inner wall of the lower end of the fixed frame 201, and the pressing block 203 is slidably disposed in the slide groove 217. The slide groove 217 provides a guide for the longitudinal movement of the pressing block 203. The shape of the pressing block 203 is adapted to the shape of the slide groove 217. A pressing column 208 is rotatably disposed through the middle of the pressing block 203. A rotating shaft 219 is rotatably disposed at the upper end of the pressing column 208. The top end of the rotating shaft 219 is fixed to the bottom end of the rotating block 205 at the end of the transmission rod 207 away from the adjusting block 202.

[0050] Once the system confirms that the centering mechanism 3 has been reset and the eyeglass case is stationary, the continuous downward pressure of the pressure head 209 applies a label to the surface of the eyeglass case. The pressure head 209 adapts to the curved surface of the eyeglass case through its internal air bladder, fitting against the surface of the eyeglass case. The reaction force pushes the pressure head 209 and the fixing rod 210 upward. At this time, the spring 211 is in a compressed state. Then, the bidirectional air pump 13 is turned on and blows air into the lower end of the fixing rod 210 through the air supply pipe 220. The airflow blows through the fine holes onto the label surface, causing the label to separate from the bottom of the pressure head 209 and stick to the eyeglass case.

[0051] A fixing rod 210 is movably mounted at the bottom end of the pressing column 208. A pressure head 209 is fixed at the bottom end of the fixing rod 210. A spring 211 is sleeved on the outside of the fixing rod 210 (the formula for calculating the elastic force of spring 211 is F = kx, where F represents the elastic force of spring 211, k represents the spring constant, and x represents the compression of spring 211). The two ends of the spring 211 are fixed to the bottom end of the pressing column 208 and the middle of the bottom end of the pressure head 209, respectively. A flexible airbag is provided inside the pressure head 209 to facilitate automatic fitting to the curved surface of the eyeglass case. The bottom end of the pressure head 209, located outside the airbag, has fine holes. An air supply pipe 220 is fixedly installed through the surface. A bidirectional air pump 13 is fixedly installed on one side of the lower end of the fixed frame 201. The end of the bidirectional air pump 13 near the fixed frame 201 is fixed to the lower end of the outer wall of the fixed frame 201. The air inlet of the bidirectional air pump 13 is fixedly connected to the end of the air supply pipe 220 away from the pressure head 209. Slider 212 is fixedly installed on both sides of the bottom end of the fixed frame 201. The top of slider 212 is fixed to the top of the fixed frame 201. The lower end of slider 212 has a groove. The shape of the groove matches the shape of the protrusion on the surface of the electric slide rail 14. Slider 212 slides on the electric slide rail 14. The shape of slider 212 (e.g., ...) Figure 6 (As shown).

[0052] The continuous rotation of the adjusting block 202 drives the transmission rod 207, the pressing block 203, the pressing column 208, and the pressing head 209 to move upward, causing the bottom end of the pressing head 209 to leave the surface of the eyeglass case. At this time, the spring 211 rebounds and causes the pressing head 209 to return to its original position. The slider 212 at the lower end of the fixing bracket 201 slides along the surface of the electric slide rail 14 to a suitable position. When the label is below the pressing head 209, the air between the lower end of the pressing head 209 and the label surface is extracted by turning on the bidirectional air pump 13, causing the label to be adsorbed to the bottom end of the pressing head 209.

[0053] Reference Figure 5 , Figure 9 The centering mechanism 3 includes a fixed block 301 and a cam 303 rotatably mounted on the top surface of the fixed block 301. The bottom two sides of the fixed block 301 are fixed to the top ends of the tracks on both sides of the top of the base 1. The cam 303 is an elliptical block. The minimum diameter of the cam 303 is smaller than the width of the eyeglass case, and the maximum diameter of the cam 303 is larger than the width of the two eyeglass cases. The cam 303 moves from its initial position to the same distance as the two centering blocks 302 on the opposite side, and is in contact with the inner wall of the track at the top of the base 1. A spring 305 is fixed inside the circular hole 15 (the formula for calculating the elastic force of spring 305 is F = kx, where F represents the elastic force of spring 305, k represents the constant of spring 305, and x represents the compression of spring 305). Centering blocks 302 are symmetrically and movably mounted on the side wall of the track at the top of the base 1 in the centering area. The shape of the centering blocks 302 is as follows (e.g., Figure 9(As shown), used to hold the eyeglass case so that it remains in the center area of ​​the conveyor belt.

[0054] The two ends of the second spring 305 are respectively fixed to the end of the centering block 302 near the inner wall of the track and the inner wall of the first circular hole 15. The top center of the second fixing block 301 has a third circular hole. The top center of the second fixing block 301 is rotatably provided with a rotating rod 304. The upper end of the rotating rod 304 rotates through the third circular hole. The bottom end of the rotating rod 304 is fixed to the top of the cam 303. The bottom end of the second motor 6 is fixed to the top of the second fixing block 301. The top end of the rotating rod 304 is fixed to the output end of the second motor 6.

[0055] When motor 6 is turned on, the rotating rod 304 rotates at the top of the fixed block 301, which in turn drives the bottom cam 303 to rotate synchronously, making the maximum diameter direction of cam 303 parallel to the track. This pushes the two centering blocks 302 to move in opposite directions. At this time, the spring is in a stretched state. When the eyeglass case moves between the two centering blocks 302, the continuous rotation of cam 303 makes the minimum diameter direction of cam 303 parallel to the track, thus releasing the two centering blocks 302. At this time, spring 305 rebounds and pulls the centering blocks 302 to move towards the center of the track, so that the centering blocks 302 clamp the eyeglass case and keep the eyeglass case in the center area of ​​the conveyor belt, realizing the dynamic centering adjustment of the eyeglass case. As cam 303 continues to rotate until the maximum diameter direction is parallel to the inner wall of the track, cam 303 pushes the centering blocks 302 to move outward, and spring 305 is stretched to release the clamping of the eyeglass case. Through the periodic rotation of cam 303, the centering blocks 302 reciprocate under the restoring force of spring 305 to center multiple eyeglass cases.

[0056] Reference Figure 3 , Figure 4 The adjusting mechanism 4 includes an electric slide rail 401 fixed to the side wall of a fixed plate 9, and a slider 402 slidably disposed on one side of the electric slide rail 401. An electric slide rail 403 is fixed on the side of the slider 402 away from the electric slide rail 401. A slider 404 is slidably disposed on the side of the electric slide rail 403 away from the slider 402. A connecting block 405 is fixed on the side of the slider 404 away from the electric slide rail 403. A separating plate 406 is fixed on the end of the connecting block 405 away from the slider 404. The shape of the separating plate 406 is as follows: Figure 3 As shown, its surface is smooth and is used to receive the label separated from the backing paper. The second separation plate 406 is located near the end of the first separation plate 12. The two work together to form an acute angle structure. When the label paper passes through this acute angle, the label separates from the backing paper due to its stiffness and adheres to the surface of the second separation plate 406, while the backing paper continues to move along the bottom surface of the first separation plate 12.

[0057] Electric slide rail 14, electric slide rail 2 401, electric slide rail 3 403, and sliders 1 212, slider 2 402, and slider 3 404 are all made of stainless steel or titanium alloy. This material has stronger wear resistance and corrosion resistance, which makes it easier to maintain stable operating accuracy under long-term operation. The contact surfaces of electric slide rail 14, electric slide rail 2 401, electric slide rail 3 403 and sliders 1 212, slider 2 402, and slider 3 404 are coated with titanium nitride coating, which greatly reduces the coefficient of friction, improves wear resistance, and extends service life.

[0058] When the label is conveyed by the recycling roller 11 to one end of the separating plate 12 near the adjusting mechanism 4, the backing paper is conveyed to the bottom end of the separating plate 12 through the gap between the separating plate 12 and the separating plate 2 406, while the label is separated to the surface of the separating plate 2 406. By activating the electric slide rail 2 401, the slider 2 402 is driven to move to the appropriate position in a direction perpendicular to the track. At the same time, the electric slide rail 3 403 is activated to drive the slider 3 404 to move to the appropriate position in a direction parallel to the track. This, in turn, drives the connecting block 405 and the separating plate 2 406 to move horizontally or vertically, so that the separating plate 2 406 moves directly below the pressure head 209 when the pressure head 209 rises to its highest point.

[0059] The implementation principle of the eyeglass case labeling device in this application embodiment is as follows: During use, the device drives the rotating rod 304 and cam 303 via motor 6 to reciprocate the centering block 302, achieving dynamic centering of the eyeglass case. After the clamping action is completed and a signal is triggered, the PLC calculates the center coordinates of the eyeglass case based on the eyeglass case length data uploaded by the distance sensor 8, and sends a command to the electric slide rail 14 to drive the slider 212, adjusting the labeling mechanism 2 to the center position of the eyeglass case. The feeding roller 10 and the recycling roller 11 rotate synchronously and intermittently. The label is fed by a moving plate. The cooperation between the first separating plate 12 and the second separating plate 406 moves the label to the surface of the second separating plate 406. The adjusting mechanism 4 drives the second separating plate 406 to move directly below the pressure head 209 when the pressure head 209 rises to its highest point. The bidirectional air pump 13 is started to absorb the label. When labeling, the position of the nut 213 is adjusted by turning the knob 215 to adapt to different eyeglass case heights. The motor 5 is started to drive the pressure head 209 to press down and apply the label, so that the air bladder inside the pressure head 209 adapts to the curved surface of the eyeglass case. The bidirectional air pump 13 is started to blow air to separate the label.

[0060] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A labeling device for eyeglass cases, characterized in that: The device includes a base (1) and a labeling mechanism (2) for labeling the eyeglass case, which is slidably disposed on the top of the base (1). The top of the labeling mechanism (2) is fixed with a first motor (5) for providing power to the labeling mechanism (2). A fixing plate (9) is symmetrically fixed in the middle of the top of the base (1). An adjustment mechanism (4) is fixed on the side wall of the fixing plate (9) near the labeling mechanism (2). A centering mechanism (3) for centering the eyeglass case is fixed on the side of the top of the base (1) away from the labeling mechanism (2). The top of the centering mechanism (3) is fixed with a second motor (6) for providing power to the centering mechanism (3). The labeling mechanism (2) includes a fixed frame (201) and an adjusting block (202) rotatably disposed on the bottom surface of the fixed frame (201). A screw (204) is rotatably disposed through the middle of the adjusting block (202). A nut (213) that slides on the inner wall of the adjusting block (202) is threadedly sleeved in the middle of the screw (204). A transmission rod (207) is rotatably disposed at the bottom end of the nut (213). A rotating shaft (219) is rotatably disposed at the bottom end of the transmission rod (207). A pressing column (208) is rotatably sleeved at the bottom end of the rotating shaft (219). A pressing head (209) is movably disposed at the bottom end of the pressing column (208). The centering mechanism (3) includes a fixed block two (301) and a cam (303) rotatably disposed on the inner top surface of the fixed block two (301). The top of the cam (303) is fixed with a rotating rod (304) fixed to the output end of the motor two (6). Centering blocks (302) are movably disposed on both sides of the cam (303). Spring two (305) are symmetrically fixed on opposite sides of the two centering blocks (302).

2. The eyeglass case labeling device according to claim 1, characterized in that: The top center of the fixed frame (201) is rotatably provided with a fixed shaft (214) that is fixed to the top center of the adjusting block (202). The top of the fixed shaft (214) is fixed to the output end of the motor (5). A knob (215) is fixed at one end of the screw (204) located outside the adjusting block (202).

3. The eyeglass case labeling device according to claim 1, characterized in that: Two rotating blocks (206) are symmetrically fixed at both ends of the transmission rod (207). A rotating block (205) is rotatably arranged on the outer side of the rotating block (206) away from the transmission rod (207). The top end of one rotating block (205) is fixed to the bottom end of the nut (213), and the bottom end of the other rotating block (205) is fixed to the top end of the rotating shaft (219).

4. The eyeglass case labeling device according to claim 1, characterized in that: The lower end of the inner wall of the base (1) is fixedly provided with a sliding groove (217), and a pressing block (203) adapted to the shape of the sliding groove (217) is slidably arranged in the sliding groove (217).

5. The eyeglass case labeling device according to claim 1, characterized in that: The bottom end of the pressing column (208) is movably provided with a fixing rod (210) that is fixed to the pressing head (209). A spring (211) is sleeved on the outside of the fixing rod (210). The two ends of the spring (211) are fixed to the top end of the pressing head (209) and the bottom end of the pressing column (208), respectively.

6. The eyeglass case labeling device according to claim 1, characterized in that: An air supply pipe (220) is fixedly provided on the side of the pressure head (209). A bidirectional air pump (13) is fixedly provided on one side of the lower end of the fixed frame (201). The air inlet of the bidirectional air pump (13) is fixedly connected to the end of the air supply pipe (220) away from the pressure head (209). Electric slide rails (14) are fixedly provided on both sides of the top of the base (1) directly below the labeling mechanism (2). Slider blocks (212) that slide on the electric slide rails (14) are fixedly provided on both sides of the bottom end of the fixed frame (201).

7. The eyeglass case labeling device according to claim 1, characterized in that: The adjustment mechanism (4) includes an electric slide rail two (401) fixed to the side wall of a fixed plate (9) and a slider two (402) slidably disposed on one side of the electric slide rail two (401). An electric slide rail three (403) is fixed on the side of the slider two (402) away from the electric slide rail two (401). A slider three (404) is slidably disposed on the side of the electric slide rail three (403) away from the slider two (402). A connecting block (405) is fixed on the side of the slider three (404) away from the electric slide rail three (403). A separation plate two (406) is fixed at one end of the connecting block (405) away from the slider three (404).

8. The eyeglass case labeling device according to claim 1, characterized in that: Two fixing plates (9) are located between the labeling mechanism (2) and the centering mechanism (3) at the top of the base (1). A separation plate (12) is fixed in the middle of the side wall of one of the fixing plates (9). A feeding roller (10) for mounting label rolls is rotatably arranged on the upper end of the opposite side of the two fixing plates (9). A recycling roller (11) for recycling label backing paper is rotatably arranged at the far end of the opposite side of the two fixing plates (9). A fixing block (7) is fixed between the fixing plate (9) at the top of the base (1) and the centering mechanism (3). A distance measuring sensor (8) for measuring the length of the eyeglass case is fixed on the inner top surface of the fixing block (7).

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