Anti-stacking feeding device for liquid crystal screen reflectors

Abstract

The utility model relates to an anti-stacking feeding device for liquid crystal screen reflectors. The anti-stacking feeding device comprises a rack, a feeding bin and a feeding mechanism, wherein the feeding bin and the feeding mechanism are arranged on the rack. The feeding mechanism comprises an XYZ-axis linear module arranged on the rack and located above the feeding bin, a material taking assembly arranged at the driving end of the XYZ-axis linear module and a detection assembly arranged on the rack. The material taking assembly comprises a supporting plate, air cylinders vertically arranged at the four corners of the supporting plate correspondingly, suction cups located below the supporting plate and arranged at the driving ends of the air cylinders, an ejector rod vertically arranged in the center of the bottom of the supporting plate, and a static electricity removing ion fan arranged on one side of the supporting plate. According to the utility model, the two groups of cylinders which are arranged in a diagonal manner alternately stretch out and draw back to twist the reflectors and cooperate with the destaticizing ion fan to blow ion wind to separate the reflectors which are adsorbed together due to static electricity, so that the material taking assembly can only suck one reflector at one time, the mistaken taking rate can be greatly reduced, and the reliability is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of LCD screen manufacturing, and specifically refers to an anti-overlapping material feeding device for LCD screen reflectors. Background Technology

[0002] The main function of the reflector in an LCD screen is to enhance the uniformity of light, and it usually works in conjunction with components such as the filter layer and the refractive plate.

[0003] Currently, after production, reflectors are coated with protective films on both sides to prevent scratches or the accumulation of dust and other debris. Before installation, these protective films must be removed to facilitate installation and use.

[0004] To improve the efficiency of automated production, many factories currently use film-peeling machines to remove the protective film, such as the fully automatic liquid crystal display light guide plate film-peeling equipment disclosed in existing technology 202022378671.5. However, this method has the following problems:

[0005] (1) Although the existing separation and picking mechanism can hold the center of the light guide plate against the suction bracket and drive the swing bracket with the separation cylinder to flip the four corners of the light guide plate upward, thus breaking the vacuum condition between two adjacent light guide plates; however, since the reflector is made of plastic and the reflector is stacked, it is easy to generate static electricity and stick together tightly. In addition, the reflector is relatively thin and soft overall. Even if the swing bracket is driven by the separation cylinder to flip the four corners of the light guide plate upward, it may not be possible to separate the reflector that is sticking together tightly under static electricity, resulting in the problem of multiple pieces being picked up by mistake.

[0006] (2) The existing technology has adopted a three-axis moving suspension and the separation material picking mechanism is equipped with a lifting material picking cylinder. However, the material bin also needs to be equipped with a lifting plate, push rod and lifting motor, which makes the overall structure more complicated and greatly increases the production cost. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art by providing an anti-overlapping feeding device for LCD screen reflectors.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a material feeding device for preventing stacking of reflectors in liquid crystal screens, comprising a frame, a feeding bin and a feeding mechanism respectively disposed on the frame;

[0009] The feeding hopper is used to store stacked reflectors;

[0010] The feeding mechanism includes an XYZ axis linear module mounted on the frame and located above the feeding bin, a material picking component mounted on the drive end of the XYZ axis linear module, and a detection component mounted on the frame.

[0011] The material handling assembly includes a support plate, cylinders vertically arranged at the four corners of the support plate, a suction cup located below the support plate and arranged on the cylinder drive end, a top rod vertically arranged at the bottom center of the support plate, and an antistatic ion fan arranged on one side of the support plate.

[0012] The detection component is used to detect whether the material picking component has only picked up one reflector. If multiple reflectors are picked up, two sets of cylinders placed diagonally alternately extend, retract, and twist the reflectors, and an antistatic ion fan blows ion air to separate the reflectors that are adsorbed together, ensuring that the material picking component can only pick up one reflector at a time.

[0013] Preferably, the positions of the four cylinders on the support plate can be adjusted along the diagonal direction.

[0014] Preferably, the static ion fan is mounted on the support plate via an L-shaped connecting frame, and the height of the static ion fan and the distance between it and the support plate can be adjusted via the L-shaped connecting frame.

[0015] Preferably, the feeding bin includes a storage base and multiple limiting rods vertically arranged around the storage base; the multiple limiting rods form a receiving cavity for placing the reflector; the top of the multiple limiting rods is provided with a brush for initially peeling off the reflectors that are adsorbed together.

[0016] Preferably, the feeding hopper is also equipped with an antistatic ionization air device on one side of the receiving cavity.

[0017] Preferably, the multiple limiting rods can be adjusted in both length and width directions.

[0018] Preferably, the feeding bin further includes L-shaped support seats located on both sides of the storage seat, two horizontally placed slide rails for connecting the L-shaped support seats and the sides of the storage seat, a cover plate located at the outer end of the storage seat, and a handle located on the outer side of the cover plate.

[0019] Preferably, a sensor for detecting the presence or absence of a reflector is provided at the bottom of the receiving cavity.

[0020] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] This invention uses two sets of diagonally placed cylinders to alternately extend, retract, and twist the reflectors, combined with an antistatic ion fan to blow ion air, to separate the reflectors that are attracted together by static electricity. This ensures that the material picking component can pick up only one reflector at a time, which can greatly reduce the error rate and significantly improve reliability. Attached Figure Description

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0023] Appendix Figure 1 This is a schematic diagram of the anti-overlapping feeding device for LCD screen reflectors described in this utility model.

[0024] Appendix Figure 2 This is a schematic diagram of the feeding mechanism in this utility model;

[0025] Appendix Figure 3 This is a schematic diagram of the material handling component in this utility model;

[0026] Appendix Figure 4 This is a schematic diagram of the material supply bin in this utility model;

[0027] Appendix Figure 5 This is an end view of the feeding hopper in this utility model;

[0028] Appendix Figure 6 This is a schematic diagram of the double nut assembly of the lead screw in the feed hopper of this utility model.

[0029] The components include: 1. Frame; 2. Feeding bin; 21. Storage seat; 22. Limiting rod; 23. Brush; 24. Screw double nut assembly; 241. Adjusting handwheel; 25. L-shaped support seat; 26. Slide rail; 27. Cover plate; 28. Handle; 29. ​​Sensor; 3. Feeding mechanism; 31. XYZ axis linear module; 32. Picking assembly; 321. Support plate; 3211. Clearance groove; 3212. Threaded hole; 322. Cylinder; 323. Suction cup; 324. Push rod; 325. Static ionizing fan; 326. Adjusting seat; 3261. Through hole; 327. L-shaped connecting frame; 3271. Long groove; 4. Correction mechanism. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0031] Appendix Figure 1-3 The anti-overlapping feeding device for LCD screen reflectors described in this utility model includes a frame 1, a feeding bin 2 and a feeding mechanism 3 respectively disposed on the frame 1;

[0032] The feeding bin 2 is used to store stacked reflectors;

[0033] The feeding mechanism 3 includes an XYZ axis linear module 31 mounted on the frame 1 and located above the feeding bin 2, a material picking component 32 mounted on the drive end of the XYZ axis linear module 31, and a detection component mounted on the frame 1 (not shown in the figure).

[0034] The material handling assembly 32 includes a support plate 321, cylinders 322 vertically arranged at the four corners of the support plate 321, a suction cup 323 located below the support plate 321 and arranged on the driving end of the cylinders 322, a top rod 324 vertically arranged at the bottom center of the support plate 321, and an antistatic ion fan 325 arranged on one side of the support plate 321.

[0035] The detection component is used to detect whether the material picking component 32 has only picked up one reflector. If multiple reflectors are picked up, the reflectors are separated by two sets of cylinders 322 placed diagonally, which alternately extend, retract and twist the reflectors, and the antistatic ion fan 325 blows ion air to separate the reflectors adsorbed together, so as to ensure that the material picking component 32 can only pick up one reflector at a time.

[0036] During operation: The operator stacks the reflectors in the feeding bin 2, then starts the equipment. The feeding mechanism 3 picks up the reflectors one by one from the feeding bin 2. The bottom of the top rod 324 first contacts the top reflector. Since the top rod 324 is equipped with a sensor, it can feed back the position information of the reflector to the control system. At this time, the bottom of the top rod 324 presses against the middle of the reflector. The four cylinders 322 drive the suction cups 323 to extend and pick up the four corners of the reflector. Then, they are sent to the detection component for inspection. If only one reflector is picked up, it is sent directly to the correction mechanism 4 for position correction. Conversely, if multiple reflectors are picked up, the two sets of cylinders 322 placed diagonally extend and retract alternately, causing the reflector to bend and deform. At the same time, the antistatic ion fan 325 blows ion air to the sides of the multiple reflectors. The static electricity is eliminated by the neutralization of the static charge on the surface of the multiple reflectors by the ions, until the reflectors adsorbed together are separated.

[0037] Furthermore, such as Figure 3 As shown, the positions of the four cylinders 322 on the support plate 321 can be adjusted diagonally, accommodating reflectors of various sizes. Specifically, it includes clearance grooves 3211 respectively located at the four corners of the support plate 321 and placed diagonally; threaded holes 3212 respectively located on both sides of the clearance grooves 3211 and spaced diagonally; adjusting seats 326 located on the sides of the cylinders 322; through holes 3261 located at both ends of the bottom of the adjusting seat 326 corresponding to the positions of any pair of threaded holes 3212 on both sides; and bolts passing through the through holes 3261 and connecting to any one of the threaded holes 3212 to fix the adjusting seat 326 on the support plate 321. The cylinders 322 are vertically arranged in the clearance grooves 3211. When the position of the cylinders 322 needs to be adjusted, the bolts pass through the through holes 3261 and connect to the threaded holes 3212 at the desired positions, changing the position of the adjusting seat 326, thereby adjusting the position of the cylinders 322.

[0038] Furthermore, such as Figure 3As shown, the static ion fan 325 is mounted on the support plate 321 via an L-shaped connecting frame 327. The height of the static ion fan 325 and its distance from the support plate 321 can be adjusted via the L-shaped connecting frame 327, and it is compatible with reflectors of various sizes. Specifically, the horizontal and vertical parts of the L-shaped connecting frame 327 are provided with elongated grooves 3271, and the height of the static ion fan 325 and its distance from the support plate 321 can be adjusted by tightening and loosening locking parts.

[0039] Furthermore, such as Figure 4 As shown, the feeding bin 2 includes a storage base 21 and multiple limiting rods 22 respectively vertically arranged around the storage base 21; the multiple limiting rods 22 form a receiving cavity for placing the reflector; the top of the multiple limiting rods 22 is provided with a brush 23 for initially peeling off the reflectors that are adsorbed together.

[0040] During operation: the staff places the reflectors in the receiving cavity, and the surrounding area is limited by multiple limiting rods 22; when the feeding mechanism 3 takes the reflectors out of the receiving cavity, the brushes 23 on the top of the limiting rods 22 can initially separate the reflectors that are adsorbed together.

[0041] Furthermore, the feeding hopper 2 is also equipped with an anti-static ionizing air device (not shown in the figure) on one side of the receiving cavity, which can blow ionizing air when the feeding mechanism 3 takes the reflector from the receiving cavity to reduce the static electricity between the reflectors.

[0042] Furthermore, such as Figure 4-5 As shown, the feeding bin 2 also includes L-shaped support seats 25 located on both sides of the storage seat 21, two horizontally placed slide rails 26 for connecting the L-shaped support seats 25 and the sides of the storage seat 21, a cover plate 27 located at the outer end of the storage seat 21, and a handle 28 located on the outer side of the cover plate 27. When one of the feeding bins 2 is short of material, the equipment will issue an alarm. At this time, the staff can pull out the storage seat 21 through the handle 28 to replenish the material. Since the storage seat 21 after being pulled out is far away from the working area of ​​the feeding mechanism 3, it can effectively avoid danger during replenishment and ensure high safety.

[0043] Furthermore, such as Figure 4 and Figure 6 As shown, the multiple limiting rods 22 can be adjusted in both length and width directions to accommodate reflectors of different sizes. The spacing between the limiting rods 22 can be adjusted via a screw double nut assembly or a long hole structure. In this embodiment, the spacing between the limiting rods 22 in the length direction is adjusted via a screw double nut assembly 24, which extends into the cover plate 27 via the adjusting handwheel 241 of the screw double nut assembly 24 and is located below the handle 28. The spacing between the limiting rods 22 in the width direction is manually adjusted via a long hole and bolts.

[0044] Furthermore, such as Figure 1 As shown, there are two feeding bins 2, which are placed side by side; when one is feeding, the other can be manually replenished, so as to achieve non-stop operation.

[0045] Furthermore, such as Figure 4 As shown, a sensor 29 for detecting the presence or absence of a reflector is provided at the bottom of the receiving cavity. When the sensor 29 detects that there is no reflector, it issues a material shortage alarm to remind the staff to replenish the material.

[0046] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A feeding device for preventing stacking of reflectors in liquid crystal displays, characterized in that: It includes a frame, a feeding bin and a feeding mechanism respectively set on the frame; The feeding hopper is used to store stacked reflectors; The feeding mechanism includes an XYZ axis linear module mounted on the frame and located above the feeding bin, a material picking component mounted on the drive end of the XYZ axis linear module, and a detection component mounted on the frame. The material handling assembly includes a support plate, cylinders vertically arranged at the four corners of the support plate, a suction cup located below the support plate and arranged on the cylinder drive end, a top rod vertically arranged at the bottom center of the support plate, and an antistatic ion fan arranged on one side of the support plate. The detection component is used to detect whether the material picking component has only picked up one reflector. If multiple reflectors are picked up, two sets of cylinders placed diagonally alternately extend, retract, and twist the reflectors, and an antistatic ion fan blows ion air to separate the reflectors that are adsorbed together, ensuring that the material picking component can only pick up one reflector at a time.

2. The anti-overlapping feeding device for LCD screen reflectors according to claim 1, characterized in that: The positions of the four cylinders on the support plate can be adjusted diagonally.

3. The anti-overlapping feeding device for LCD screen reflectors according to claim 1, characterized in that: The static ion fan is mounted on the support plate via an L-shaped connecting frame, and the height of the static ion fan and the distance between it and the support plate can be adjusted via the L-shaped connecting frame.

4. The anti-overlapping feeding device for a liquid crystal screen reflector according to any one of claims 1-3, characterized in that: The feeding bin includes a storage base and multiple limiting rods vertically arranged around the storage base; the multiple limiting rods form a receiving cavity for placing the reflector; the top of the multiple limiting rods is provided with a brush for initially peeling off the reflectors that are adsorbed together.

5. The anti-overlapping feeding device for LCD screen reflectors according to claim 4, characterized in that: The feeding hopper is also equipped with an anti-static ionization air device on one side of the receiving cavity.

6. The anti-overlapping feeding device for LCD screen reflectors according to claim 4, characterized in that: The multiple limiting rods can be adjusted in both length and width directions.

7. The anti-overlapping feeding device for LCD screen reflectors according to claim 4, characterized in that: The feeding hopper also includes L-shaped support seats located on both sides of the storage seat, two horizontally placed slide rails for connecting the L-shaped support seats and the sides of the storage seat, a cover plate located at the outer end of the storage seat, and a handle located on the outer side of the cover plate.

8. The anti-overlapping feeding device for a liquid crystal screen reflector according to claim 4, characterized in that: The bottom of the receiving cavity is equipped with a sensor for detecting the presence or absence of a reflector.

Images