A waveguide edge sealing glue spraying mechanism

Abstract

The utility model provides a waveguide edge sealing glue spraying equipment, including fixed establishment, glue spraying mechanism and heating mechanism. The top of glue spraying mechanism is connected with fixed establishment, and the bottom of glue spraying mechanism sets up the glue outlet, and heating mechanism sets up around the glue outlet of glue spraying mechanism, utilizes heating mechanism to heat the injection glue of glue outlet of glue spraying mechanism, reduces the injection glue viscosity of glue outlet of glue spraying mechanism through the heating mode, makes the glue outlet of glue spraying mechanism can continuously and smoothly inject the glue for the glue edge sealing operation of the end surface of diffractive optical waveguide superposition structure.

Description

Technical Field

[0001] This utility model belongs to the field of diffractive waveguide fabrication technology, specifically relating to a waveguide edge sealing adhesive spraying mechanism. Background Technology

[0002] The existing methods for fabricating diffractive waveguides are generally as follows:

[0003] 1. Prepare the grating master.

[0004] Specifically,

[0005] A grating mask is prepared on a master substrate: a layer of photoresist of a certain thickness is spin-coated onto the surface of the master substrate to obtain a master substrate with a photoresist mask; the master substrate with the photoresist mask is exposed, and the photoresist mask on the master substrate is modulated by the periodic bright and dark stripes of the exposure light field, which changes the properties of the photoresist mask, thus obtaining a photoresist mask with altered properties on the master substrate; the photoresist mask with altered properties on the master substrate is developed to obtain a grating mask on the master substrate.

[0006] Using a grating mask to fabricate a grating on a master substrate: The grating structure is etched on the master substrate area not covered by the grating mask using an ion beam etching machine, thereby preparing the grating master.

[0007] 2. The grating structure of the grating master is transferred to the soft film substrate using a nanoimprinting process to obtain a soft film with a reverse grating structure.

[0008] Specifically, an imprinting adhesive is uniformly spin-coated onto the grating master plate, and a soft film substrate is bonded to the grating master plate. Pressure is applied to fill the grating structure of the grating master plate with the imprinting adhesive, resulting in an inverse structure of the grating structure on the imprinting adhesive. The grating structure is then cured and demolded using ultraviolet light, and the imprinting adhesive with the inverse structure of the grating structure is transferred to the soft film substrate to obtain a soft film with the inverse structure of the grating structure.

[0009] 3. The inverse structure of the grating structure on the soft film is transferred onto the optical wafer using a nanoimprinting process to obtain an optical wafer with a grating structure.

[0010] Specifically, a mold adhesive is spin-coated onto an optical wafer, and a soft film with an inverse grating structure is bonded to the mold adhesive on the optical wafer. Pressure is applied to fill the inverse grating structure of the soft film with the mold adhesive, thus obtaining a grating structure on the mold adhesive. Ultraviolet light is used for curing and demolding to separate the soft film with the inverse grating structure from the mold adhesive with the grating structure, resulting in an optical wafer with a grating structure.

[0011] 4. Based on the layered structure of the diffractive waveguide (consisting of at least one cover plate and at least one optical wafer with a grating structure), a lamination operation is performed between adjacent parallel cover plates and optical wafers with grating structures or between optical wafers with grating structures using laminating adhesive to obtain a diffractive waveguide laminated structure.

[0012] 5. Apply glue to seal the end faces of the diffractive waveguide composite structure to obtain the finished diffractive waveguide.

[0013] The current method of using adhesive spraying to seal the end face of the diffractive waveguide composite structure is problematic because the adhesive used has a high viscosity, making it difficult to spray out and thus affecting the sealing operation of the end face of the diffractive waveguide composite structure. Utility Model Content

[0014] In order to overcome the shortcomings of the prior art, this utility model provides a waveguide edge sealing adhesive spraying mechanism.

[0015] This utility model is achieved through the following technical solution:

[0016] This utility model provides a waveguide edge sealing adhesive spraying device, characterized in that it includes a fixing mechanism, an adhesive spraying mechanism, and a heating mechanism;

[0017] The top of the glue spraying mechanism is connected to the fixing mechanism, and the bottom of the glue spraying mechanism is provided with a glue outlet.

[0018] The heating mechanism is arranged around the glue outlet of the glue spraying mechanism;

[0019] The heating mechanism is used to heat the glue sprayed from the glue outlet of the glue spraying mechanism.

[0020] Furthermore, it also includes a shielding mechanism;

[0021] The shielding mechanism absorbs the scattered glue dots of the sprayed glue from the glue outlet of the glue spraying mechanism.

[0022] Furthermore, the shielding mechanism employs a shielding plate;

[0023] The bottom end of the heating mechanism extends downward to form the baffle plate.

[0024] Furthermore, the shielding mechanism employs a shielding plate;

[0025] The baffle plate is connected to the bottom end of the heating mechanism.

[0026] Furthermore, the blocking mechanism includes a drive mechanism and a blocking plate;

[0027] The top end of the drive mechanism is connected to the fixing mechanism, and the bottom end of the drive mechanism is connected to the baffle plate.

[0028] The drive mechanism causes the shield to move up and down.

[0029] Furthermore, the shielding mechanism is made of aluminum alloy or polytetrafluoroethylene.

[0030] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0031] This utility model provides a waveguide edge sealing adhesive spraying device, including a fixing mechanism, an adhesive spraying mechanism, and a heating mechanism. The top of the adhesive spraying mechanism is connected to the fixing mechanism, and the bottom of the adhesive spraying mechanism is provided with an adhesive outlet. The heating mechanism is arranged around the adhesive outlet of the adhesive spraying mechanism. The heating mechanism heats the adhesive sprayed from the adhesive outlet of the adhesive spraying mechanism, thereby reducing the viscosity of the adhesive sprayed from the adhesive outlet of the adhesive spraying mechanism, so that the adhesive outlet of the adhesive spraying mechanism can continuously and smoothly spray adhesive for the edge sealing operation of the end face of the diffractive waveguide stacked structure.

[0032] The waveguide sealing adhesive spraying equipment provided by this utility model also includes a shielding mechanism. The shielding mechanism adsorbs the scattered adhesive dots of the sprayed adhesive from the outlet of the adhesive spraying mechanism, thereby reducing or even preventing the scattered adhesive dots of the sprayed adhesive from the outlet of the adhesive spraying mechanism from falling into the grating structure surface of the diffractive waveguide composite structure. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the waveguide edge sealing adhesive spraying equipment provided by this utility model;

[0035] Figure 2 for Figure 1 The diagram shows a first example of a shielding mechanism in a waveguide edge sealing adhesive spraying equipment.

[0036] Figure 3 for Figure 1 The diagram shows a second example of a waveguide edge sealing adhesive spraying equipment with a shielding mechanism.

[0037] Figure 4 for Figure 1The diagram shows a third example of a shielding mechanism in a waveguide edge sealing adhesive spraying equipment.

[0038] Among them, 1-fixing mechanism, 2-adhesive spraying mechanism, 2-1-adhesive outlet, 3-heating mechanism, 4-first shielding plate, 5-second shielding plate, 6-first cylinder, 7-second cylinder. Detailed Implementation

[0039] The technical solution of this utility model will be clearly and completely described below with reference to its 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.

[0040] In this document, the terms "first," "second," and other similar words are not intended to imply any order, quantity, or importance, but are merely used to distinguish different elements. The terms "one," "a," and other similar words are not intended to indicate the existence of only one of the stated things, but rather that the description refers only to one of the stated things, which may have one or more. The terms "comprising," "including," and other similar words are intended to indicate a logical relationship, not a spatial relationship. For example, "A includes B" means that logically B belongs to A, not that spatially B is located inside A. Furthermore, the meanings of the terms "comprising," "including," and other similar words should be considered open-ended, not closed. For example, "A includes B" means that B belongs to A, but B does not necessarily constitute all of A; A may also include other elements such as C, D, and E.

[0041] In this document, the terms "embodiment," "this embodiment," "preferred embodiment," and "one embodiment" do not imply that the description applies only to one specific embodiment, but rather that such description may also be applicable to one or more other embodiments. Those skilled in the art will understand that any description made herein relating to one embodiment can be substituted, combined, or otherwise incorporated with the descriptions in one or more other embodiments. Such substitutions, combinations, or other incorporations resulting in new embodiments are readily conceived by those skilled in the art and fall within the protection scope of this utility model.

[0042] In this description, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] like Figure 1As shown, this utility model provides a waveguide edge sealing adhesive spraying device, including a fixing mechanism 1, an adhesive spraying mechanism 2, and a heating mechanism 3.

[0044] The top of the glue spraying mechanism 2 is connected to the fixing mechanism 1, and the bottom of the glue spraying mechanism 2 is provided with a glue outlet 2-1.

[0045] The heating mechanism 3 is located around the glue outlet 2-1 of the glue spraying mechanism 2, and the heating mechanism is used to heat the glue sprayed from the glue outlet of the glue spraying mechanism.

[0046] For example, the fixing mechanism can be a fixing frame. The glue spraying mechanism can be, for example, an existing piezoelectric spray valve. The heating mechanism can be a heating block, which may include a heating pad and a heating element disposed within the heating pad. The heating element can be an existing thermocouple or other heating component.

[0047] The top of the piezoelectric injection valve is connected to the mounting bracket, and the bottom of the piezoelectric injection valve has a nozzle. A heating pad is placed around the nozzle of the piezoelectric injection valve, and a thermocouple is inserted into the heating pad.

[0048] The piezoelectric spray valve contains adhesive. The thermocouple heats the adhesive above the nozzle of the piezoelectric spray valve through a heating pad, thereby reducing the viscosity of the adhesive. This allows the adhesive to be continuously and smoothly sprayed through the nozzle of the piezoelectric spray valve for the adhesive sealing operation of the end face of the diffractive waveguide composite structure.

[0049] During the adhesive sealing process on the end face of the diffractive waveguide composite structure, some of the adhesive sprayed from the nozzle of the adhesive spraying mechanism forms scattered adhesive dots that easily fall onto the grating structure surface of the diffractive waveguide composite structure. Therefore, as a preferred embodiment, the waveguide sealing adhesive spraying equipment provided by this utility model also includes a shielding mechanism. The shielding mechanism absorbs the scattered adhesive dots from the adhesive sprayed from the nozzle of the adhesive spraying mechanism, reducing or even preventing the scattered adhesive dots from falling onto the grating structure surface of the diffractive waveguide composite structure.

[0050] The shielding mechanism can adopt the following three schemes:

[0051] Option 1

[0052] The shielding mechanism uses a shielding plate, which extends downward from the bottom end of the heating mechanism to form the shielding plate.

[0053] like Figure 2As shown, the heating mechanism 3 adopts a rectangular heating block. The bottom two ends of the rectangular heating block extend downward to form a first shielding plate 4 and a second shielding plate 5, respectively. The first shielding plate 4 and the second shielding plate 5 adsorb the scattered glue dots of the glue sprayed from the glue outlet 2-1 of the glue spraying mechanism 2, thereby reducing or even preventing the scattered glue dots of the glue sprayed from the glue outlet of the glue spraying mechanism from falling into the grating structure surface of the diffraction waveguide superimposed structure.

[0054] Option 2

[0055] The shielding mechanism uses a shielding plate, which is connected to the bottom end of the heating mechanism.

[0056] like Figure 3 As shown, the heating mechanism 3 adopts a rectangular heating block. The bottom two ends of the rectangular heating block are fixedly connected to the first shielding plate 4 and the second shielding plate 5 respectively. The first shielding plate 4 and the second shielding plate 5 adsorb the scattered glue dots of the glue sprayed from the glue outlet 2-1 of the glue spraying mechanism 2, thereby reducing or even preventing the scattered glue dots of the glue sprayed from the glue outlet of the glue spraying mechanism from falling into the grating structure surface of the diffraction waveguide superimposed structure.

[0057] Option 3

[0058] The shielding mechanism includes a drive mechanism and a shielding plate.

[0059] The top of the drive mechanism is connected to the fixed mechanism, and the bottom of the drive mechanism is connected to the baffle plate. The drive mechanism drives the baffle plate to move up and down.

[0060] like Figure 4 As shown, the driving mechanism uses two cylinders. The top of the first cylinder 6 is connected to one end of the fixing mechanism 1, and the bottom of the first cylinder 6 is connected to the first shielding plate 4. The top of the second cylinder 7 is connected to the other end of the fixing mechanism 1, and the bottom of the second cylinder 7 is connected to the second shielding plate 5. The first cylinder 6 drives the first shielding plate 4 to move up and down, and the second cylinder 7 drives the second shielding plate 5 to move up and down. Before the end face of the diffractive waveguide stacked structure is sealed with glue, the first cylinder drives the top of the first shielding plate to move to the vicinity of the bottom of the heating mechanism, and the second cylinder drives the top of the second shielding plate to move to the vicinity of the bottom of the heating mechanism. The first and second shielding plates adsorb the scattered glue dots of the glue sprayed from the glue outlet of the glue spraying mechanism, reducing or even preventing the scattered glue dots of the glue sprayed from the glue outlet of the glue spraying mechanism from falling onto the grating structure surface of the diffractive waveguide stacked structure.

[0061] The shielding plate of the aforementioned shielding mechanism can be made of aluminum alloy or polytetrafluoroethylene, etc. This can further increase the amount of adhesive droplets scattered by the adhesive spraying nozzle of the adhesive spraying mechanism.

[0062] The following example illustrates the process of applying adhesive to the end face of a diffractive waveguide composite structure using the waveguide edge-sealing adhesive spraying equipment provided by this utility model:

[0063] 1. The top of the adsorption platform adsorbs the unstructured surface of the diffractive waveguide composite structure.

[0064] 2. Tilt the adsorption platform 90 degrees and start its rotation. Simultaneously, position the adhesive spraying equipment above the end face of the diffractive waveguide composite structure.

[0065] 3. Start the glue spraying mechanism to perform glue sealing operation on the end face of the diffractive waveguide stacked structure. During this process, the shielding mechanism absorbs the scattered glue dots of the glue sprayed from the glue outlet of the glue spraying mechanism, reducing or even preventing the scattered glue dots of the glue sprayed from the glue outlet of the glue spraying mechanism from falling into the grating structure surface of the diffractive waveguide stacked structure.

[0066] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art can still make modifications or equivalent substitutions to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model are within the protection scope of the claims of this utility model pending approval.

Claims

1. A waveguide edge sealing adhesive spraying mechanism, characterized in that, Includes a fixing mechanism, an adhesive spraying mechanism, and a heating mechanism; The top of the glue spraying mechanism is connected to the fixing mechanism, and the bottom of the glue spraying mechanism is provided with a glue outlet. The heating mechanism is arranged around the glue outlet of the glue spraying mechanism; The heating mechanism is used to heat the glue sprayed from the glue outlet of the glue spraying mechanism.

2. The waveguide edge sealing adhesive spraying mechanism according to claim 1, characterized in that, It also includes a shielding mechanism; The shielding mechanism absorbs the scattered glue dots of the sprayed glue from the glue outlet of the glue spraying mechanism.

3. The waveguide edge sealing adhesive spraying mechanism according to claim 2, characterized in that, The shielding mechanism uses a shielding plate; The bottom end of the heating mechanism extends downward to form the baffle plate.

4. The waveguide edge sealing adhesive spraying mechanism according to claim 2, characterized in that, The shielding mechanism uses a shielding plate; The baffle plate is connected to the bottom end of the heating mechanism.

5. The waveguide edge sealing adhesive spraying mechanism according to claim 2, characterized in that, The shielding mechanism includes a drive mechanism and a shielding plate; The top end of the drive mechanism is connected to the fixing mechanism, and the bottom end of the drive mechanism is connected to the baffle plate. The drive mechanism causes the shield to move up and down.

6. The waveguide edge sealing adhesive spraying mechanism according to claim 2, characterized in that, The shielding mechanism is made of aluminum alloy or polytetrafluoroethylene.

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