Glue injection device and glue injection method for 3C screen

Abstract

The invention relates to a glue injection device and method for a 3C screen, at least one glue opening is reserved in glass of the 3C screen, the glue injection device comprises a plate body which is formed by printing and is provided with a glue runner groove in any surface in the thickness direction, and the glue runner groove is arranged in the plate body. The glass to be injected with glue covers the surface, provided with the glue runner groove, of the plate body, a sealant forming cavity is formed between a groove opening of the glue runner groove and the glass, and the sealant forming cavity is communicated with the glue opening. The mold has the beneficial effects that the problems in existing mold production are solved through the printed and formed plate body and the fast-assembly glass, the 3D printing technology is adopted, accurate manufacturing can be achieved according to requirements, a large amount of material waste in traditional mold production is reduced, the production material cost is reduced, meanwhile, the fast-assembly glass enables the mold to be debugged and replaced more rapidly, and the production efficiency is improved. And time waste caused by debugging defects or glass mounting problems is reduced.

Description

Technical Field

[0001] The invention belongs to the field of molds, and in particular relates to a glue injection device and a glue injection method for a 3C screen. Background Art

[0002] In the prior art, the existing process mold production faces three significant problems: high manufacturing costs, long production cycles, and high failure costs. First, the high manufacturing costs are mainly reflected in high material consumption, low single-piece production efficiency, complex design and manufacturing processes, and over-reliance on experience. These factors are superimposed on each other, resulting in a large amount of resources required for each design modification, further pushing up costs. In addition, the production cycle is complicated due to the complex development process, insufficient optimization of the design scheme, high processing difficulty, and cumbersome debugging process. These links are intertwined with each other, resulting in frequent delays in the entire development process, which seriously affects production efficiency. Problems arise during the production process, and the mold needs to be redesigned or remanufactured, which not only increases costs, but also further extends the production cycle, forming a vicious circle. Summary of the invention

[0003] The purpose of the present invention is to provide a glue injection device and a glue injection method for a 3C screen that can solve the above technical problems.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: The glue injection device of the 3C screen has at least one glue opening reserved on the glass of the 3C screen. The glue injection device includes a plate body formed by printing and having a glue flow channel groove on any surface in the thickness direction. The glass to be injected with glue is covered on a surface of the plate body provided with the glue flow channel groove, and a sealant molding cavity is formed between the notch of the glue flow channel groove and the glass, and the sealant molding cavity is connected to the glue opening.

[0005] Furthermore, the plate body is a honeycomb plate body, and a release coating is provided at least in the glue runner groove.

[0006] Furthermore, a surface of the plate body provided with the glue flow channel groove also has a plurality of shallow glue grooves connected to the glue flow channel groove, the groove depth of the shallow glue groove is less than the groove depth of the glue flow channel groove, and each of the shallow glue grooves is connected to one of the glue ports.

[0007] Furthermore, there are two shallow glue grooves distributed at two oblique angles of the plate body.

[0008] Furthermore, the glue injection device also includes a pressing block covering at least a portion of the surface of one end of the glass, and a sealing nozzle connected to the glue port is provided on the pressing block, and the sealing nozzle is sealed with the outer opening of the glue port. The glue injection device also includes a syringe at least partially inserted in the sealing nozzle.

[0009] Furthermore, a concave groove is provided on a surface of the pressing block close to the glass and is concave toward a side away from the glass, and a column is provided at the bottom of the concave groove and passes through a through hole provided on the glass, the outer diameter of the column is smaller than the hole diameter of the through hole and the column abuts against the bottom of the glue runner groove. The two are in surface-to-surface matching contact.

[0010] Furthermore, a plurality of the concave grooves are provided on a surface of the pressing block, and a column is provided at the bottom of each of the concave grooves, and the column is a conical column.

[0011] Further, the plate body is fixed on the base plate, and the plate body is connected to a pressing member pressed on at least a portion of the surface of the glass through a detachable structure. There are several pressing members, and at least some of the pressing members sequentially penetrate the pressure block, the glass and the plate body and are connected to the base plate through the detachable structure, and the remaining pressing members sequentially penetrate the glass and the plate body and are connected to the base plate through the detachable structure.

[0012] As an application solution, the present application also provides a method for injecting glue into a 3C screen, using the 3C screen injecting glue device, the method for injecting glue comprises the following steps: S1, placing a glass cover with glue injection on a surface of a plate body provided with a glue flow channel, and forming a sealant molding cavity between the glass and the glue flow channel; S2. Liquid silicone is injected into the sealant molding cavity through the glue port reserved on the glass in S1, and the liquid silicone is cured in the sealant molding cavity at a temperature of 30 degrees Celsius to 40 degrees Celsius to obtain the glass with liquid silicone curing components.

[0013] Furthermore, before the above step S1, the method further includes at least a step of manufacturing the plate body by 3D printing, and the specific processing steps of the plate body are as follows: S10, obtaining the plate body by 3D printing; S11, cleaning the plate in S10; S12, providing a release coating on at least the glue flow channel groove of the plate body processed in S11, so as to obtain the plate body; and providing a layer of contoured silicone base material film on the surface of the glass to be injected with glue.

[0014] Compared with the existing technology, the advantages of this application are: the problems in the existing mold production are solved by printing the formed plate and quick-install glass, and the 3D printing technology can be used for precise manufacturing according to the needs, which reduces a large amount of material waste in traditional mold production and reduces the production material cost. At the same time, the quick-install glass makes the debugging and replacement of the mold faster, reducing the time wasted due to debugging defects or glass installation problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main assembly part of the glue injection device of the 3C screen of the present invention; Figure 2 FIG1 is an exploded schematic diagram of the main parts of the glue injection device for the 3C screen of the present invention; Figure 3 FIG2 is an exploded schematic diagram of the main parts of the glue injection device for the 3C screen of the present invention; Figure 4 for Figure 3 A magnified schematic diagram of the main components in the middle A area; Figure 5 It is a top view schematic diagram of the assembly of the main components of the glue injection device for the 3C screen of the present invention; Figure 6 for Figure 5 Schematic diagram of the AA section; Figure 7 for Figure 6 A magnified schematic diagram of the main components in the middle B area; Figure 8 It is a schematic front view of the plate component of the 3C screen of the present invention; Fig. 9 It is a front view schematic diagram of the plate body component of the 3C screen of the present invention; Fig.10 for Fig. 9 Schematic diagram of the middle BB section; Fig.11 for Fig.10 Enlarged schematic diagram of the main components in the middle C area; Fig.12 This is a schematic diagram of the finished glass component of the 3C screen of the present invention; Fig.13 for Fig.12 A magnified schematic diagram of the main components in the middle D area; In the figure, glass 1, glue port 10, through hole 11, plate body 2, glue flow channel groove 20, demoulding coating 21, shallow glue groove 22, pressing block 3, sealing nozzle 30, recessed groove 31, column 32, hollow hole 33, syringe 4, bottom plate 5, clamping member 34, liquid silicone curing member 6. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0017] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0019] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0020] Embodiment 1, as Figure 1-Figure 3 The figure shows the glue injection device of the 3C screen in this embodiment, in which at least one glue port 10 is reserved on the glass 1 of the 3C screen, and the glue port 10 is used to inject glue into the processing area, and the above-mentioned glue injection device includes a plate body 2 which is formed by printing and has a glue flow channel 20 on any surface in the thickness direction, the glass 1 to be injected with glue covers a surface of the plate body 2 provided with the glue flow channel 20, and a sealant molding cavity is formed between the groove of the glue flow channel 20 and the glass 1, and the sealant molding cavity is connected with the glue port 10, and the above-mentioned plate body 2 is a honeycomb plate body, which is conducive to weight reduction and improving overall rigidity, and a release coating 21 is provided at least in the glue flow channel 20.

[0021] The structural design of the honeycomb panel has high strength and rigidity, and good thermal stability, and can meet the needs of high-precision glue injection; in this embodiment, the panel 2 is made by 3D printing technology, which has the advantages of rapid prototyping, complex structure manufacturing, and personalized customization; Figure 10-11 As shown, a release coating 21 is provided on the surface of the glue runner groove 20. This release coating 21 can not only effectively prevent the adhesion between the rubber and the glue runner groove 20, but also significantly reduce the friction resistance generated by the rubber during the flow process, thereby further improving the injection efficiency and molding accuracy.

[0022] In addition, if Figure 8-Figure 9 As shown, a surface of the plate body 2 provided with the glue flow channel groove 20 also has a plurality of shallow glue grooves 22 connected to the glue flow channel groove 20. Each shallow glue groove 22 is connected to a separate glue port 10, ensuring that the glue liquid can accurately enter the back of the glass 1 from a specific position. The groove depth of the shallow glue groove 22 is less than the groove depth of the glue flow channel groove 20. This design enables the glue liquid to evenly and stably cover and fill the above-mentioned glue flow channel groove 20. The design of the shallow glue groove 22 can also be flexibly adjusted according to specific product requirements. For example, in 3C screens of different sizes, the number, spacing and groove depth of the shallow glue grooves 22 can be changed to meet different sealing requirements.

[0023] Specifically, Figure 5 There are two shallow glue grooves 22, which are distributed at two oblique angles of the plate body 2. This design can achieve balanced distribution of glue during the glue injection process, avoiding the problem of uneven sealing caused by too much or too little glue on one side.

[0024] In addition, if Figure 1 The glue injection device shown also includes a pressing block 3 covering at least part of the surface of one end of the glass 1, and a sealing nozzle 30 connected to the glue port 10 is provided on the pressing block 3, and the sealing nozzle 30 is sealed with the outer opening of the glue port 10. At the same time, a syringe 4 is inserted into the sealing nozzle 30, and the syringe 4 provides glue liquid for processing. At the same time, the syringe 4 can also control its pressure to change its glue injection rate. Further, in order to ensure the stable supply of glue liquid, a good sealing connection method is adopted between the syringe 4 and the sealing nozzle 30 to avoid leakage of glue liquid or generation of bubbles during injection.

[0025] like Figure 4 As shown, a plurality of concave grooves 31 are provided on a surface of the pressing block 3 close to the glass 1 and concave toward a side away from the glass 1, and a column 32 is provided at the bottom of the concave groove 31 and penetrates the through hole 11 provided on the glass 1. Specifically, a column 32 is provided at the bottom of each concave groove 31, and the column 32 is a conical column. Figure 6-Figure 7As shown, the outer diameter of the column 32 is smaller than the aperture of the through hole 11 and the column 32 abuts against the bottom of the glue flow channel 20, the purpose of which is to allow the glue to flow from the through hole 11 into the recessed groove 31, so that the glue can adhere to both sides of the glass 1 at the same time. This design allows the plate 2, the glass 1 and the pressing block 3 to form a plurality of "I"-shaped spaces together. When the glue is injected into this part, after the glue solidifies, a columnar "I"-shaped plastic part will be formed and pass through both sides of the glass 1, so that the molded plastic part and the glass 1 have a better fixing effect. At the same time, due to the existence of the column 32, the "I"-shaped plastic part will form a Figure 12-13 The through hole shown is used to facilitate the above-mentioned pressing block 3 to be separated from the glass 1 more quickly after the processing is completed, without causing damage to the above-mentioned plastic parts fixed on the glass.

[0026] Regarding the fixed aspect, Figure 2 As shown, the plate body 2 is fixed on the bottom plate 5, and the plate body 2 is connected to a pressing member 34 pressed against at least part of the surface of the glass 1 through a detachable structure. There are several pressing members 34, and at least some of the pressing members 34 sequentially penetrate the pressing block 3, the glass 1 and the plate body 2 and are connected to the bottom plate 5 through the detachable structure, and the remaining pressing members 34 sequentially penetrate the glass 1 and the plate body 2 and are connected to the bottom plate 5 through the detachable structure. The design of the pressing member 34 adopts bolts or other adjustable fasteners, and the pressing force is adjusted by rotation or other methods. In addition, in order to ensure that the glass 1 will not be subjected to excessive pressure or deformation during the fixing process, the pressing member 34 in this embodiment is equipped with a shock-absorbing pad or a buffer to disperse the pressure and protect the surface of the glass 1.

[0027] At the same time, as a practical design, the pressing block 3 is provided with a hollow hole 33 corresponding to at least a portion of the glue flow channel groove 20. Since in this embodiment, the glass 1 is a tempered glass with high light transmittance, the UV light penetration is improved, and the LSR curing stability is improved. The operator observes the glue injection situation at the above-mentioned recessed groove 31 through the above-mentioned hollow hole 33 to ensure the quality of the finished product of each processing operation.

[0028] Embodiment 2: The structure and principle of this embodiment are basically the same as those of Embodiment 1. The different structure is that, with respect to the glue injection device of the 3C screen of the above-mentioned Embodiment 1, this embodiment describes the glue injection method for the above-mentioned 3C screen.

[0029] The above-mentioned glue injection method comprises the following steps: S1. Cover the glass 1 to be injected with glue on a surface of the plate 2 provided with the glue flow channel 20, and press and fix the two and other remaining plate parts by a pressing member 34, so that a sealant molding cavity is formed between the glass 1 and the glue flow channel 20; a layer of contoured silicone base film is provided on the surface of the glass 1 to be injected with glue, and the silicone base film, such as PET, can protect the glass 1.

[0030] S2, injecting liquid silicone into the sealant molding cavity at low pressure and low speed through the reserved glue port 10 on the glass 1 in S1, and curing the liquid silicone in the sealant molding cavity at a temperature of 30 degrees Celsius to 40 degrees Celsius (for 1 hour), to obtain Fig.12 The glass 1 with the liquid silicone cured component 6 is shown.

[0031] Particularly, before the above-mentioned step S1, it also includes at least a step of preparing the board body 2. In the present embodiment, the board body 2 is first prepared into a semi-processed part by 3D printing technology, and then the semi-processed floor body 2 is cleaned; finally, a release coating 21 is provided on at least the glue flow channel groove 20 of the board body 2 processed by S11, so as to prepare the board body 2; specifically, regarding the above-mentioned release coating 21, in the present embodiment, the release coating 21 is prepared by PCV (magnetron sputtering) / CVD (chemical vapor deposition) / Parylene (vacuum vapor deposition) or a combination thereof.

[0032] The specific 3D printing method of the plate 2 is as follows: Step 1: 3D modeling, using computer-aided design (CAD) software to build a three-dimensional digital model of the mold, which needs to accurately describe the geometric shape, size and structural details of the plate 2; this step includes the following sub-steps: Step 101: According to the actual size and shape of the plate 2, the use of 3D scanning or CAD software to create a three-dimensional digital model; Step 102: Repairing, optimizing and processing the three-dimensional digital model to generate the final printing model file; Step 103: performing layer slicing on the printing model file to generate a printing instruction file that can be recognized by the 3D printer; Step 2: Mold printing, import the 3D digital model created in step 1 into the control software of the light-curing 3D printer, start the printing process after setting the printing parameters, and solidify the 3D digital model of the mold layer by layer into a solid through light-curing technology; this step includes the following sub-steps: Step 201: Import the printing instruction file into the light-curing 3D printer; Step 202: Configure printing parameters, including light source power, exposure time, layer thickness and other parameters; Step 203: Start the printer and cure the photosensitive resin layer by layer according to the instruction file to produce the plate body 2; Step 3: Determine the print quality, perform visual inspection and dimensional measurement on the printed board 2, check whether its surface quality, dimensional accuracy and structural integrity meet the design requirements, if unqualified, return to step 1 to re-model and print, if qualified, proceed to step 4; Step 4: Post-printing processing, the qualified printed board 2 is subjected to subsequent processing, such as removing the support structure, polishing, coloring, etc., so that it meets the use requirements. This step includes the following sub-steps: Step 401: The printed board 2 is immersed in a solvent for cleaning to remove the remaining uncured resin; Step 402: Assemble the plate body 2 and apply a parting agent to prepare for the injection molding process.

[0033] Step 5: Perform PVD on the post-processed plate 2 (select CVD or Parylene treatment according to the structural characteristics of the plate 2), and plate a metal coating (such as metal chromium) on the surface of the mold to make the mold more demoulding-capable.

[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A glue injection device for a 3C screen, wherein at least one glue opening (10) is reserved on the glass (1) of the 3C screen, and is characterized in that: The glue injection device comprises a plate body (2) formed by printing and having a glue flow channel groove (20) on any surface in the thickness direction; the glass (1) to be injected with glue covers a surface of the plate body (2) provided with the glue flow channel groove (20); a sealant molding cavity is formed between the notch of the glue flow channel groove (20) and the glass (1); the sealant molding cavity is in communication with the glue port (10).

2. The glue injection device for 3C screen according to claim 1, characterized in that: The plate body (2) is a honeycomb plate body, and a demoulding coating (21) is provided at least in the glue flow channel groove (20).

3. The glue injection device for 3C screen according to claim 1, characterized in that: A surface of the plate body (2) provided with the glue flow channel groove (20) also has a plurality of shallow glue grooves (22) connected to the glue flow channel groove (20), the groove depth of the shallow glue grooves (22) being less than the groove depth of the glue flow channel groove (20), and each of the shallow glue grooves (22) being connected to one of the glue ports (10).

4. The glue injection device for 3C screen according to claim 3, characterized in that: There are two shallow glue grooves (22) distributed at two oblique angles of the plate body (2).

5. The glue injection device for 3C screen according to claim 1, characterized in that: The glue injection device further comprises a pressing block (3) covering at least a portion of the surface of one end of the glass (1), and a sealing nozzle (30) is provided on the pressing block (3) and is connected to the glue port (10), the sealing nozzle (30) is sealed with an outer opening of the glue port (10), and the glue injection device further comprises a syringe (4) at least partially inserted into the sealing nozzle (30).

6. The glue injection device for 3C screen according to claim 5, characterized in that: A recessed groove (31) is provided on a surface of the pressing block (3) close to the glass (1) and is recessed towards a side away from the glass (1); and a column (32) is provided at the bottom of the recessed groove (31) and penetrates a through hole (11) provided on the glass (1); the outer diameter of the column (32) is smaller than the hole diameter of the through hole (11), and the column (32) abuts against the bottom of the glue flow channel groove (20).

7. The glue injection device for 3C screen according to claim 6, characterized in that: A plurality of the recessed grooves (31) are provided on a surface of the pressing block (3), and a column (32) is provided at the bottom of each recessed groove (31), and the column (32) is a conical column.

8. The glue injection device for 3C screen according to claim 5, characterized in that: The plate body (2) is fixed on a bottom plate (5); the plate body (2) is connected to a pressing member (34) through a detachable structure and pressed against at least a portion of the surface of the glass (1); there are a plurality of pressing members (34); at least a portion of the pressing members (34) sequentially penetrate the pressing block (3), the glass (1) and the plate body (2) and are connected to the bottom plate (5) through the detachable structure; the remaining pressing members (34) sequentially penetrate the glass (1) and the plate body (2) and are connected to the bottom plate (5) through the detachable structure.

9. A method for injecting glue for a 3C screen, using the device for injecting glue for a 3C screen as claimed in any one of claims 1 to 8, characterized in that: The glue injection method comprises the following steps: S1, covering a surface of a plate body (2) provided with a glue flow channel (20) with a glue-injected glass (1), and forming a sealant molding cavity between the glass (1) and the glue flow channel (20); S2, injecting liquid silicone into the sealant molding cavity through the glue opening (10) reserved on the glass (1) in S1, and curing the liquid silicone in the sealant molding cavity at a temperature of 30 degrees Celsius to 40 degrees Celsius, thereby obtaining a glass (1) with a liquid silicone curing component (6).

10. The method for injecting glue into a 3C screen according to claim 9, characterized in that: Before the above-mentioned step S1, the method further includes at least a step of manufacturing the plate body (2) by 3D printing. The specific processing steps of the plate body (2) are as follows: S10, obtaining the plate body (2) by 3D printing; S11, cleaning the plate body (2) in S10; S12, providing a release coating (21) on at least the glue flow channel (20) of the plate body (2) after the S11 treatment, so as to obtain the plate body (2); and providing a layer of contoured silicone base material film on the surface of the glass (1) to be injected with glue.

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