A liquid crystal television lamp strip is manufactured by using a pushing mechanism

Abstract

The utility model discloses a kind of material pushing mechanisms for making liquid crystal television lamp strip, relate to lamp strip manufacturing technical field, for conveying lens, linear track is equipped with multiple linear grooves in, the length direction of any linear groove is parallel with the length direction of linear track;One end of linear track is feeding port, the outermost side of feeding port is provided with baffle, and the height of baffle is less than the thickness of lens;The material pushing mechanism is set on linear track, and it is used to make the lens immediately behind lens to be grabbed retreat a certain distance in the direction away from feeding port in linear groove.This material pushing mechanism can make corresponding lens move a certain distance before mechanical hand grabs lens, to form a non-interference grabbing space at feeding port, facilitate the grabbing of mechanical hand.

Description

Technical Field

[0001] This utility model relates to the field of LED strip manufacturing technology, and more specifically, to a feeding mechanism for manufacturing LCD TV LED strips. Background Technology

[0002] In the manufacturing of LCD TV backlight modules, the LED strip, as a core light source component, directly affects the overall display effect due to its optical performance. To precisely control light distribution, improve illumination uniformity, and suppress glare, a miniature optical lens is typically installed above each LED chip in the LED strip. The main function of these lenses is to perform secondary optical processing on the light emitted by the LEDs, such as focusing, diffusing, or forming specific light distribution curves, thereby achieving the goals of light guidance, improved edge sharpness, reduced light pollution, and optimized viewing experience.

[0003] Currently, the lens mounting process is generally completed using automated equipment, with pick-and-place machines (such as the JX350 model) being key equipment for high-precision, high-efficiency mounting. A typical automated process is as follows: A batch of lenses are oriented and fed sequentially into a linear track via a vibrating feeder or other feeding device. Driven by the track, the lenses move along it and are eventually conveyed one by one to the feeding port (or pick-up position) at the end of the track to await gripping. The robotic arm (usually a multi-nozzle mounting head) inside the pick-and-place machine moves above the feeding port, its nozzles descend and simultaneously pick up multiple lenses located at the feeding port. Subsequently, the robotic arm moves the gripped group of lenses above the corresponding LED strip stations, and with the help of dispensing or adhesive backing processes, precisely attaches and fixes the lenses to the predetermined positions on the LED strips.

[0004] However, a technical challenge exists in the aforementioned automated production process that affects production cycle time and stability. To ensure continuous feeding, lenses within the track are typically conveyed forward in a closely spaced arrangement. When the foremost lens reaches the feed inlet to be grasped by the robotic arm, the next lens following closely often comes into close contact with it, sometimes even being squeezed due to inertia or track vibration. The robotic arm's gripping end relies on a vacuum nozzle to generate negative pressure to adsorb the lens. During adsorption, a stable and complete airtight contact area needs to be formed between the nozzle end face and the upper surface of the lens. If there is no gap between adjacent lenses and the lens to be grasped, the sides of the adjacent lenses will obstruct the vertical descent or alignment of the nozzle, potentially causing the nozzle to fail to completely cover the upper surface of the lens, resulting in unstable adsorption, missed pick-up, or tilted picking posture. This not only leads to immediate pick-up failures and material spillage but may also reduce overall production efficiency due to repeated grabbing attempts, and may even cause damage to the lens or nozzle due to collisions.

[0005] Therefore, before the robotic arm performs the grasping action, how to reliably and briefly retract the lens immediately behind the lens to be grasped to form an interference-free grasping space at the feeding port, and ensure continuous, stable, efficient and automatic lens mounting, is a technical problem that urgently needs to be solved. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a feeding mechanism for manufacturing LCD TV light strips.

[0007] The objective of this utility model is achieved through the following technical solution: A material feeding mechanism for manufacturing LCD TV light strips includes a linear track for conveying lenses, in which multiple linear grooves are provided, with the length direction of any of the linear grooves parallel to the length direction of the linear track; one end of the linear track is a feeding port, and the outermost side of the feeding port is provided with a baffle whose height is less than the thickness of the lens; the material feeding mechanism is disposed on the linear track and is used to cause the lens immediately behind the lens to be picked up to move backward a certain distance away from the feeding port within the linear groove.

[0008] Furthermore, in this utility model, limit plates are provided on both sides of the linear track, and the material feeding mechanism is disposed on one of the limit plates.

[0009] Furthermore, in this utility model, a first elongated hole is provided on one of the aforementioned limiting plates near the aforementioned feeding port, and the length direction of the first elongated hole is parallel to the length direction of the aforementioned linear track; the aforementioned feeding mechanism consists of a first reciprocating drive mechanism provided on the corresponding aforementioned limiting plate and a first electric telescopic rod provided on the moving end of the aforementioned first reciprocating drive mechanism, the reciprocating movement direction of the moving end of the aforementioned first reciprocating drive mechanism is parallel to the length direction of the aforementioned linear track, the extension and retraction direction of the aforementioned first electric telescopic rod is perpendicular to the length direction of the aforementioned linear track, and the extension and retraction end of the aforementioned first electric telescopic rod can pass through the aforementioned first elongated hole and extend into the space between the lens to be grasped and the lens adjacent to the lens to be grasped.

[0010] Furthermore, in this utility model, two second elongated holes are spaced apart on the bottom wall of any of the above-mentioned straight grooves near the feeding port. The two second elongated holes are symmetrically distributed about the central axis of the straight groove. The length direction of any of the second elongated holes is parallel to the length direction of the straight track, and the distance between the two second elongated holes is less than the diameter of the lens. The feeding mechanism is located at the bottom of the straight track.

[0011] Furthermore, in this utility model, the aforementioned material feeding mechanism comprises a second reciprocating drive mechanism disposed at the bottom of the aforementioned linear track and a plurality of second electric telescopic rods spaced apart on the moving end of the aforementioned second reciprocating drive mechanism. The reciprocating movement direction of the moving end of the aforementioned second reciprocating drive mechanism is parallel to the length direction of the aforementioned linear track, and the extension direction of any of the aforementioned second electric telescopic rods is perpendicular to the length direction of the aforementioned linear track. The extension end of any of the aforementioned second electric telescopic rods can pass through the corresponding aforementioned second elongated hole and extend into the space between the lens to be grasped and the lens adjacent to the lens to be grasped.

[0012] The beneficial effects of this utility model are: This utility model provides a material feeding mechanism for manufacturing LCD TV light strips. Before the robot arm grasps the lens, the material feeding mechanism can move the corresponding lens a certain distance to form an interference-free grasping space at the feeding port, which facilitates the robot arm's grasping. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model; Figure 4 for Figure 3 Top view; Figure 5 This is a schematic diagram of the material feeding mechanism in Embodiment 2 of this utility model.

[0014] In the diagram: 101-lens; 201-linear track; 301-linear groove; 401-feeding port; 501-baffle; 601-limiting plate; 701-first elongated hole; 702-first reciprocating drive mechanism; 703-first electric telescopic rod; 801-second elongated hole; 802-second reciprocating drive mechanism; 803-second electric telescopic rod. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Example 1 Please see Figure 1 and Figure 2 This embodiment provides a technical solution: A material feeding mechanism for manufacturing LCD TV light strips includes a linear track 201 for conveying lenses 101, which has three linear grooves 301. The length direction of any linear groove 301 is parallel to the length direction of the linear track 201. One end of the linear track 201 is a feeding port 401. A baffle 501 with a height less than the thickness of the lens 101 is installed on the outermost side of the feeding port 401. The baffle 501 is used to block the lens 101 to be grasped. The material feeding mechanism is installed on the linear track 201 and is used to move the lens 101 immediately behind the lens to be grasped a certain distance away from the feeding port 401 within the linear groove 301.

[0017] To facilitate the installation of the material feeding mechanism, in this embodiment, a limiting plate 601 is installed on both sides of the linear track 201, and the material feeding mechanism is installed on one of the limiting plates 601.

[0018] Specifically, in this embodiment, a first elongated hole 701 is provided on one of the limiting plates 601 near the feeding port 401. The length direction of the first elongated hole 701 is parallel to the length direction of the linear track 201. The feeding mechanism consists of a first reciprocating drive mechanism 702 installed on the corresponding limiting plate 601 and a first electric telescopic rod 703 installed on the moving end of the first reciprocating drive mechanism 702. The reciprocating movement direction of the moving end of the first reciprocating drive mechanism 702 is parallel to the length direction of the linear track 201, and the extension direction of the first electric telescopic rod 703 is perpendicular to the length direction of the linear track 201. The extension end of the first electric telescopic rod 703 can pass through the first elongated hole 701 and extend into the space between the lens to be grasped 101 and the lens 101 adjacent to the lens to be grasped 101.

[0019] In this embodiment, the first reciprocating drive mechanism 702 adopts a common lead screw and nut mechanism, and the first electric telescopic rod 703 is installed on the nut of the lead screw and nut mechanism. The rotation of the lead screw of the lead screw and nut mechanism can be driven by a common servo motor, because a servo motor can precisely stop the mechanical parts (driving components) it drives at any specified position, so as to control the stopping position of the first electric telescopic rod 703.

[0020] Working principle: from Figure 2From the perspective of the robot arm, as the lenses 101 move within the three straight grooves 301, when the three lenses 101 to be grasped are all in contact with the baffle 501, the three lenses 101 adjacent to the three lenses 101 to be grasped will also be in contact with the three lenses 101 to be grasped. At this time, the first reciprocating drive mechanism 702 causes the first electric telescopic rod 703 to move to the right to a suitable position. The first electric telescopic rod 703 then extends, and its telescopic end extends through the first elongated hole 701 and into the space between the three lenses 101 to be grasped and the three lenses 101 adjacent to the lenses 101 to be grasped. The first reciprocating drive mechanism 702 then causes the first electric telescopic rod 703 to move to the left a certain distance. During this process, the three lenses 101 adjacent to the three lenses 101 to be grasped will move to the left a certain distance under the action of the first electric telescopic rod 703, so that the robot arm can grasp the three lenses 101 to be grasped. After the robotic arm grasps the three lenses 101 to be grasped, the telescopic end of the first electric telescopic rod 703 retracts into the first elongated hole 701. Then, the above steps are repeated to complete the grasping of the lenses 101 one by one.

[0021] Example 2 Please see Figure 3-5 The difference between this embodiment and embodiment one is that: in this embodiment, two second elongated holes 801 are spaced apart on the bottom wall of any straight groove 301 near the feeding port 401. The two second elongated holes 801 are symmetrically distributed about the central axis of the straight groove 301. The length direction of any second elongated hole 801 is parallel to the length direction of the straight track 201, and the distance between the two second elongated holes 801 is less than the diameter of the lens 101; the feeding mechanism is installed at the bottom of the straight track 201.

[0022] Specifically, in this embodiment, the feeding mechanism consists of a second reciprocating drive mechanism 802 installed on the bottom of the linear track 201 and a plurality of second electric telescopic rods 803 spaced apart on the moving end of the second reciprocating drive mechanism 802. The reciprocating movement direction of the moving end of the second reciprocating drive mechanism 802 is parallel to the length direction of the linear track 201, and the extension direction of any second electric telescopic rod 803 is perpendicular to the length direction of the linear track 201. The extension end of any second electric telescopic rod 803 can pass through the corresponding second elongated hole 801 and extend into the space between the lens 101 to be grasped and the lens 101 adjacent to the lens 101 to be grasped.

[0023] In this embodiment, the second reciprocating drive mechanism 802 also adopts a common screw and nut mechanism, and several second electric telescopic rods 803 are installed on the nut of the screw and nut mechanism.

[0024] The feeding principle of the feeding mechanism in this embodiment is the same as that of the feeding mechanism in Embodiment 1, and will not be repeated here.

[0025] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A feeding mechanism for manufacturing LCD TV light strips, comprising a linear track for conveying lenses, wherein a plurality of linear grooves are provided within the linear track, the length direction of any of the linear grooves being parallel to the length direction of the linear track; one end of the linear track is a feeding port, and a baffle with a height less than the thickness of the lens is provided on the outermost side of the feeding port; characterized in that: The feeding mechanism is located on the linear track and is used to move the rear lens adjacent to the lens to be picked up a certain distance away from the feed port in the linear groove.

2. The feeding mechanism for manufacturing LCD TV light strips according to claim 1, characterized in that: Limit plates are provided on both sides of the linear track, and the material feeding mechanism is installed on one of the limit plates.

3. The feeding mechanism for manufacturing LCD TV light strips according to claim 2, characterized in that: One of the limiting plates has a first elongated hole near the feeding port, the length direction of the first elongated hole being parallel to the length direction of the linear track; the feeding mechanism consists of a first reciprocating drive mechanism and a first electric telescopic rod on the moving end of the first reciprocating drive mechanism, the reciprocating movement direction of the moving end of the first reciprocating drive mechanism being parallel to the length direction of the linear track, the extension direction of the first electric telescopic rod being perpendicular to the length direction of the linear track, and the extension end of the first electric telescopic rod being able to pass through the first elongated hole and extend into the space between the lens to be grasped and the lens adjacent to the lens to be grasped.

4. The feeding mechanism for manufacturing LCD TV light strips according to claim 1, characterized in that: Two second elongated holes are spaced apart on the bottom wall of any of the straight grooves near the feeding port. The two second elongated holes are symmetrically distributed about the central axis of the straight groove. The length direction of any second elongated hole is parallel to the length direction of the straight track, and the distance between the two second elongated holes is less than the diameter of the lens. The feeding mechanism is located at the bottom of the straight track.

5. The feeding mechanism for manufacturing LCD TV light strips according to claim 4, characterized in that: The feeding mechanism consists of a second reciprocating drive mechanism disposed at the bottom of the linear track and a plurality of second electric telescopic rods spaced apart on the moving end of the second reciprocating drive mechanism. The reciprocating movement direction of the moving end of the second reciprocating drive mechanism is parallel to the length direction of the linear track, and the extension direction of any second electric telescopic rod is perpendicular to the length direction of the linear track. The extension end of any second electric telescopic rod can pass through the corresponding second elongated hole and extend into the space between the lens to be grasped and the lens adjacent to the lens to be grasped.

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