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A guiding and positioning mechanism for cutting light guide sheets

A technology of guide positioning and light guide sheet, which is applied in metal processing and other directions, can solve the problem of inaccurate positioning of the cutting line, and achieve the effect of simple structure, precise positioning and low cost

Active Publication Date: 2021-03-23
佛山紫熙慧众科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the prior art above, the purpose of the present invention is to provide a guiding and positioning mechanism for cutting the light guide sheet, aiming to solve the problem of inaccurate positioning of the cutting line when cutting in the prior art

Method used

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  • A guiding and positioning mechanism for cutting light guide sheets
  • A guiding and positioning mechanism for cutting light guide sheets
  • A guiding and positioning mechanism for cutting light guide sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1 , 2 , a guide and positioning mechanism for light guide sheet cutting provided by the present invention, including a movable transport base 1, and four guide blocks 2 arranged on the top of the transport base; each guide block 2 includes a rectangular parallelepiped base 2.1 , and a guide part 2.2 vertically arranged on the upper surface of one end of the base 2.1; four guide blocks 2 are symmetrically arranged in two groups, and the bases 2.1 of the two guide blocks of the same group are on the same straight line (referring to the length direction being on the same straight line ) are arranged at intervals, and the interval width is equal to the width of the longitudinal strip 2.2' of the light guide sheet 90 to be cut; The distance between the horizontal bars 2.1') ​​is equal; the guide parts 2.2 of the two guide blocks of the same group are arranged opposite to each other (that is, close to each other), and the guide part 2.2 is composed of the top sur...

Embodiment 2

[0034] see image 3 , 4 , the main difference between the guiding and positioning mechanism for cutting the light guide sheet in this embodiment and Embodiment 1 is:

[0035] The transport base 1 is provided with a plurality of air suction holes 1.1, and these air suction holes 1.1 communicate with an external air suction system. By suctioning the air suction hole 1.1, on the one hand, additional power can be provided for the downward movement of the light guide sheet 90 to be cut so that it can fall into the top of the transport base 1 more smoothly; on the other hand, the light guide sheet 90 to be cut can be dropped Adsorb it once in place to avoid shifting during cutting.

[0036] Further, the air suction holes 1.1 are arranged on both sides of the transport base 1, and the lower end of each air suction hole is connected to the side of the transport base 1 through a connecting hole 1.2 (such as Figure 4 ), the side is provided with a suction pipe 3, one end of the suct...

Embodiment 3

[0039] In this embodiment, the transport base 1 is set on a conveyor belt (not shown in the figure). The transport base 1 is moved to the cutting station via the conveyor belt for cutting.

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Abstract

The invention provides a guiding and locating mechanism used for cutting a light guide sheet. The guiding and locating mechanism comprises a movable transporting base, and four guide blocks arranged on the top of the transporting base. Each guide block comprises a base portion of a cuboid shape, and a guide portion vertically arranged on the upper surface of one end of the base portion. The four guide blocks are divided into two groups and are arranged symmetrically. The base portions of the two guide blocks in the same group are arranged on the same straight line in a spaced manner, the spacing width is equal to the longitudinal strip width of the light guide sheet to be cut, and the distance between the opposite faces of the base portions of the two guide blocks is equal to the length ofa longitudinal strip. The guide portions of the two guide blocks of the same group are arranged oppositely, each guide portion is of a big-end-down prism shape defined by a top face, two vertical faces and two slopes, and the two side faces corresponding to the inner side angle of the H-shaped connecting portion of the light guide sheet to be cut are two slopes. The guiding and locating mechanismcan achieve precise locating of the position of a cutting line, and is simple in structure and low in cost.

Description

technical field [0001] The invention relates to the technical field of light guide sheet production, in particular to a guiding and positioning mechanism for cutting a light guide sheet. Background technique [0002] The light guide sheet is an important part of the backlight of the liquid crystal display. It is used to diffuse the light emitted by the LED lights in the backlight to various angles. The light guide sheet is generally acrylic / PC board. [0003] Light guide sheets are generally produced by injection molding, such as Figure 6 As shown, the product obtained after mold opening (hereinafter referred to as the light guide sheet 90 to be cut) includes four light guide sheets 1', H-shaped connecting parts 2' connected between the four light guide sheets 1', and Injection rod 3' connected to the H-shaped connecting part 2'; wherein the H-shaped connecting part 2' includes two horizontal bars 2.1' connected between the light guide sheets 1', and two horizontal bars 2.1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26D7/02B26D7/01
CPCB26D7/018B26D7/025
Inventor 周启航吴志波
Owner 佛山紫熙慧众科技有限公司