Polarizing sheet feeding mechanism

Abstract

The utility model belongs to liquid crystal display production technical field, concretely relates to a polarizing plate feeding mechanism, and this polarizing plate feeding mechanism: bottom plate, be located the below of bottom plate, a plurality of limit rod, vertical setting in the four around of support plate, just limit rod and bottom plate enclose and form the bin that is suitable for stacking polarizing plate, lift cylinder, set up in the below of support plate, and the telescopic rod of lift cylinder passes through support plate and the bottom center connection of bottom plate, at least a pair of air knife nozzle, symmetry sets up on limit rod, lift cylinder pushes the bottom plate to rise to preset height after, air knife nozzle sprays compressed gas between the gap of the uppermost layer polarizing piece and the next layer polarizing piece, separates two polarizing pieces.

Description

Technical Field

[0001] This utility model belongs to the field of liquid crystal display manufacturing technology, and in particular relates to a polarizer feeding mechanism. Background Technology

[0002] In the production process of LCD panels, polarizers, as key optical components, require precise feeding and film removal using automated equipment. Currently, the industry commonly uses negative pressure adsorption feeding mechanisms to transport polarizers. These mechanisms work by using vacuum nozzles to adsorb the surface of the polarizer, and then using robotic arms or conveyor mechanisms to transport it to a designated workstation.

[0003] However, in actual production, polarizers are usually stored in the loading hopper in multiple stacks. During the stacking process, the surface of the polarizers easily attracts dust particles from the environment (such as fibers, metal shavings, electrostatic dust, etc.). Dust particles increase the friction and electrostatic attraction between the polarizers, causing adjacent sheets to be pulled up together during negative pressure adsorption, resulting in the adsorption of multiple sheets at once (i.e., stacking). This stacking phenomenon directly affects the accuracy of subsequent film peeling and bonding processes, and may even cause equipment jamming or product scrap.

[0004] Therefore, how to avoid the stacking of polarizing films during the feeding and conveying process is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one polarizer feeding mechanism.

[0007] In a first aspect, embodiments of this disclosure provide a polarizer loading mechanism, comprising:

[0008] Base plate;

[0009] A support plate is located below the base plate;

[0010] Several limiting rods are vertically arranged around the support plate, and the limiting rods and the base plate enclose a hopper suitable for stacking polarizers.

[0011] A lifting cylinder is located below the support plate, and the telescopic rod of the lifting cylinder passes through the support plate and is connected to the bottom center of the base plate.

[0012] At least one pair of air knife nozzles are symmetrically arranged on the limiting rod;

[0013] After the lifting cylinder pushes the base plate to a preset height, the air knife nozzle sprays compressed gas into the gap between the uppermost polarizer and the next uppermost polarizer to separate the two polarizers.

[0014] In one optional embodiment, the limiting rods are symmetrically arranged around the support plate, and the spacing between adjacent limiting rods is equal, forming a rectangular hopper with the bottom plate.

[0015] In one alternative embodiment, the air knife nozzles are mounted on the limiting rods on the two shorter sides of the rectangular hopper, and the spray direction of each pair of air knife nozzles forms an angle of 20°-30° with the plane of the polarizer, forming a shearing airflow.

[0016] In one alternative embodiment, the top of the limiting rod is provided with an inclined surface that slopes inward toward the inside of the hopper.

[0017] In one optional embodiment, the two side limit rods adjacent to the air knife nozzle are also provided with an air blowing structure, the air blowing structure including at least a pair of air nozzles, the air blowing direction being toward the surface of the polarizer stacked in the hopper.

[0018] Secondly, embodiments of this disclosure also provide a polarizer feeding mechanism, comprising:

[0019] The load-bearing component includes a base plate and a support plate, wherein the support plate is located below the base plate;

[0020] Several limiting rods are vertically arranged around the support plate, and the limiting rods and the base plate enclose a hopper suitable for stacking polarizers.

[0021] The lifting drive assembly is installed below the support plate, and its telescopic rod passes through the support plate and connects to the bottom center of the base plate to drive the base plate to lift.

[0022] The separation component is symmetrically arranged on the limiting rod. After the lifting drive component pushes the base plate to a preset height, it sprays compressed gas into the gap between the uppermost polarizer and the next uppermost polarizer to achieve the separation of the two polarizers.

[0023] In one alternative embodiment, the lifting drive assembly includes a lifting cylinder, the telescopic rod of which passes through a support plate and is connected to the bottom center of the base plate.

[0024] In one alternative embodiment, the separation assembly includes at least one pair of air knife nozzles symmetrically arranged on the limiting rod.

[0025] In one optional embodiment, the limiting rods are symmetrically arranged around the support plate, and the spacing between adjacent limiting rods is equal, forming a rectangular hopper with the bottom plate.

[0026] In one alternative embodiment, the top of the limiting rod is provided with an inclined surface that slopes inward toward the inside of the hopper.

[0027] The beneficial effects of this utility model are that the polarizer feeding mechanism ensures no lateral displacement when polarizers are stacked by setting vertical limiting rods around the base plate; the lifting cylinder pushes the base plate at a preset height so that the gap between the uppermost polarizer and the next uppermost polarizer is aligned with the air knife nozzle, and the air knife nozzle sprays compressed gas to separate the two polarizers, thereby avoiding the phenomenon of polarizers stacking during the feeding and conveying process.

[0028] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a perspective view of a polarizer feeding mechanism provided in an embodiment of the present disclosure.

[0032] In the picture:

[0033] 100. Base plate; 200. Support plate; 300. Limiting rod; 310. Inclined surface; 400. Lifting drive assembly; 410. Lifting cylinder; 411. Telescopic rod; 500. Separation assembly; 510. Air knife nozzle; 600. Air blowing structure; 610. Air nozzle; 700. Polarizing film. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0035] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0036] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0037] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0038] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0039] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0040] Research has revealed the following drawbacks of existing technologies: In actual production, polarizers are typically stored in multiple stacks within the loading hopper. During this stacking process, the surface of the polarizer sheets readily attracts dust particles from the environment (such as fibers, metal shavings, and electrostatic dust). These dust particles increase the friction and electrostatic attraction between the polarizer sheets, causing adjacent sheets to be pulled up together during negative pressure adsorption, resulting in the adsorption of multiple sheets at once (i.e., stacking). This stacking phenomenon directly affects the accuracy of subsequent film removal and lamination processes, and may even cause equipment jams or product scrap.

[0041] Based on the above research, this disclosure provides a polarizer feeding mechanism that uses a lifting cylinder to raise the base plate carrying the polarizer, so that the air knife nozzles on both sides of the base plate blow air into the gap between the uppermost and next-uppermost polarizers to separate the two polarizers, thus solving the above-mentioned problem.

[0042] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0045] See Figure 1This disclosure provides a polarizer feeding mechanism, including: a base plate 100, a support plate 200 disposed below the base plate 100, and a plurality of limiting rods 300 disposed around the support plate 200. The limiting rods 300 are perpendicular to the plane of the support plate 200, so that the limiting rods 300 and the base plate 100 enclose a hopper suitable for stacking polarizers 700.

[0046] See also Figure 1 A lifting cylinder 410 is provided below the support plate 200. The telescopic rod 411 of the lifting cylinder 410 passes through the support plate 200 and is connected to the bottom center of the base plate 100. The lifting cylinder 410 and the telescopic rod 411 work together to raise or lower the base plate 100.

[0047] See also Figure 1 There is at least one pair of air knife nozzles 510 on the limit rod 300. After the lifting cylinder 410 pushes the bottom plate 100 to rise to the preset height, the air knife nozzles 510 are adapted to spray compressed gas into the gap between the uppermost polarizer 700 and the next uppermost polarizer 700 to separate the two polarizers 700, thereby avoiding the phenomenon of stacking of polarizers 700 during the feeding and conveying process.

[0048] See Figure 1 In some embodiments, the limiting rods 300 are symmetrically arranged around the support plate 200, and the spacing between adjacent limiting rods 300 is equal, forming a rectangular hopper with the base plate 100. Through the symmetrical and equidistant layout, the polarizer 700 is ensured to be subjected to uniform force when stacked, reducing the tilting or misalignment of the sheet caused by uneven limiting, thereby reducing the risk of stacking.

[0049] See Figure 1 In some embodiments, the air knife nozzles 510 are disposed on the limiting rods 300 on the two shorter sides of the rectangular hopper, and the spray direction of each pair of air knife nozzles 510 forms an angle of 20°-30° with the plane of the polarizer 700, forming a shearing airflow. The inclined shearing airflow can push the upper polarizer 700 to move slightly, breaking the adhesion between the plates, while pressing the lower polarizer 700 to prevent it from being blown away.

[0050] See also Figure 1 In some embodiments, the top of the limiting rod 300 is provided with an inclined surface 310 that slopes inward toward the inside of the hopper, with the inclination direction pointing toward the geometric center of the hopper, for guiding the polarizer 700 to slide into the stacking hopper along the inclined surface 310.

[0051] See also Figure 1In some embodiments, the two limiting rods 300 adjacent to the air knife nozzle 510 are also provided with an air blowing structure 600. The air blowing structure 600 includes at least a pair of air nozzles 610, the spray direction of which is directed toward the surface of the polarizers 700 stacked in the hopper. The air nozzles 610 are configured to spray airflow when the polarizers 700 enter the hopper to remove dust from the surface of the polarizers 700 and prevent dust accumulation from causing material stacking.

[0052] See Figure 1 Some embodiments also provide a polarizer feeding mechanism, including: a carrying component including a base plate 100 and a support plate 200, the support plate 200 being located below the base plate 100; a plurality of limiting rods 300, vertically arranged around the support plate 200, and the limiting rods 300 and the base plate 100 enclosing a hopper suitable for stacking polarizers 700; a lifting drive component 400, installed below the support plate 200, its telescopic rod 411 passing through the support plate 200 and connected to the bottom center of the base plate 100, for driving the base plate 100 to lift; and a separation component 500, symmetrically arranged on the limiting rods 300, for injecting compressed gas into the gap between the uppermost polarizer 700 and the next uppermost polarizer 700 after the lifting drive component 400 pushes the base plate 100 to a preset height, so as to separate the two polarizers 700.

[0053] See also Figure 1 In some embodiments, the lifting drive assembly 400 includes a lifting cylinder 410, the telescopic rod 411 of which passes through the support plate 200 and is connected to the bottom center of the base plate 100.

[0054] See also Figure 1 In some embodiments, the separation assembly 500 includes at least a pair of air knife nozzles 510 symmetrically arranged on the limiting rod 300.

[0055] In summary, this polarizer feeding mechanism ensures that there is no lateral displacement when the polarizers 700 are stacked by setting vertical limiting rods 300 around the base plate 100; the lifting cylinder 410 pushes the base plate 100 to a preset height, so that the gap between the uppermost polarizer 700 and the next uppermost polarizer 700 is aligned with the air knife nozzle 510, and the air knife nozzle 510 sprays compressed gas to separate the two polarizers 700, thereby avoiding the phenomenon of stacking of polarizers 700 during the feeding and conveying process.

[0056] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0057] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0058] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0059] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0060] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A polarizer feeding mechanism, characterized in that, include: Base plate (100); A support plate (200) is located below the base plate (100); Several limiting rods (300) are vertically arranged around the support plate (200), and the limiting rods (300) and the base plate (100) enclose a hopper suitable for stacking polarizers. A lifting cylinder (410) is located below the support plate (200), and the telescopic rod (411) of the lifting cylinder (410) passes through the support plate (200) and is connected to the bottom center of the base plate (100). At least one pair of air knife nozzles (510) are symmetrically arranged on the limiting rod (300); After the lifting cylinder (410) pushes the base plate (100) to rise to the preset height, the air knife nozzle (510) sprays compressed gas into the gap between the uppermost polarizer (700) and the next uppermost polarizer (700) to separate the two polarizers.

2. The polarizer feeding mechanism as described in claim 1, characterized in that, The limiting rods (300) are symmetrically arranged around the support plate (200), and the spacing between adjacent limiting rods (300) is equal, forming a rectangular hopper with the bottom plate (100).

3. The polarizer feeding mechanism as described in claim 2, characterized in that, The air knife nozzles (510) are set on the limiting rods (300) on the two shorter sides of the rectangular hopper, and the spray direction of each pair of air knife nozzles (510) forms an angle of 20°-30° with the plane of the polarizer (700) to form a shearing airflow.

4. The polarizer feeding mechanism as described in claim 1, characterized in that, The top of the limiting rod (300) is provided with an inclined surface (310) that slopes inward toward the inside of the hopper.

5. The polarizer feeding mechanism as described in claim 1, characterized in that, The two side limit rods (300) adjacent to the air knife nozzle (510) are also provided with an air blowing structure (600), the air blowing structure (600) includes at least a pair of air nozzles (610), the spray direction of which is toward the surface of the polarizer (700) stacked in the hopper.

6. A polarizer feeding mechanism, characterized in that, include: The load-bearing component includes a base plate (100) and a support plate (200), the support plate (200) being located below the base plate (100); Several limiting rods (300) are vertically arranged around the support plate (200), and the limiting rods (300) and the base plate (100) enclose a hopper suitable for stacking polarizers (700); A lifting drive assembly (400) is installed below the support plate (200), and its telescopic rod (411) passes through the support plate (200) and is connected to the bottom center of the base plate (100) for driving the base plate (100) to lift. The separation component (500) is symmetrically arranged on the limiting rod (300) and is used to spray compressed gas into the gap between the uppermost polarizer (700) and the next uppermost polarizer (700) after the lifting drive component (400) pushes the bottom plate (100) to a preset height, so as to separate the two polarizers (700).

7. The polarizer feeding mechanism as described in claim 6, characterized in that, The lifting drive assembly (400) includes a lifting cylinder (410), the telescopic rod (411) of which passes through the support plate (200) and is connected to the bottom center of the base plate (100).

8. The polarizer feeding mechanism as described in claim 6, characterized in that, The separation assembly (500) includes at least one pair of air knife nozzles (510) symmetrically arranged on the limiting rod (300).

9. The polarizer feeding mechanism as described in claim 6, characterized in that, The limiting rods (300) are symmetrically arranged around the support plate (200), and the spacing between adjacent limiting rods (300) is equal, forming a rectangular hopper with the bottom plate (100).

10. The polarizer feeding mechanism as described in claim 6, characterized in that, The top of the limiting rod (300) is provided with an inclined surface (310) that slopes inward toward the inside of the hopper.

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