Screen glue injection and demoulding device

Abstract

The present invention belongs to the technical field of glue dispensing, and in particular relates to a screen glue injection and demoulding device, comprising a base, a positioning mold, a lifting mechanism and an adsorption mechanism; the positioning mold is arranged on the base, and is used to position the glue injection mold; the positioning mold comprises a main body, a blowing element and a limiting member, the main body is provided with a positioning surface, the positioning surface is provided with a mounting groove, the blowing element is arranged in the mounting groove, the blowing element is connected to an air pressure input device, so that the blowing element blows air into the glue injection port of the glue injection mold positioned on the positioning surface; the limiting member is arranged on the main body, and is used to limit the glue injection mold on the positioning surface; the base is provided with a supporting seat, and the supporting seat is provided with a mounting portion; the lifting mechanism is arranged on the mounting portion, and the adsorption mechanism is arranged at the bottom end of the lifting mechanism, the adsorption mechanism comprises a suction nozzle, and is used to adsorb on the upper surface of the screen component in the glue injection mold, and the lifting mechanism drives the adsorption mechanism to rise and fall repeatedly, so that the inner screen component of the glue injection mold slowly falls off.

Description

Technical Field

[0001] The invention belongs to the technical field of glue dispensing, and in particular relates to a screen glue injection and demoulding device. Background Art

[0002] Glue injection is a conventional processing technology for products made of glue materials. It is to inject fluid glue into the glue injection mold, and then form a product after the glue solidifies; for example, many plastic products, rubber products (seals, rubber rings, etc.). For another example, many electronic products (back of the screen) currently need to be equipped with a circle of sealing rubber rings. The traditional process of setting a rubber ring on the back of the display screen is to use a glue dispenser to dispense glue on the back of the product, but due to the glue dispensing process, an interface will be formed, affecting the overall quality. Therefore, the glue injection method is currently used to form a rubber ring on the back of the product. Specifically, the product is positioned in the glue injection mold, and the glue injection machine squeezes the glue into the glue injection mold to form a rubber ring on the product. After solidification, the product can be taken out as a whole.

[0003] For example, a glue injection and curing process disclosed in a Chinese patent document with publication number CN117038524A includes the following steps: S1: clamping the screen assembly between the upper mold core and the lower mold core of the glue injection mold, so that the bending portion of the screen assembly is sealed in the glue injection groove of the glue injection mold, and closing the mold; S2: injecting glue into the glue injection mold to fill the glue material on both the inner and outer sides of the outer wall of the bending portion at the same time; S3: curing the colloid to form a glue sealing structure on the inner and outer sides of the outer wall of the bending portion; S4: releasing the mold and demolding the cured colloid and the screen assembly.

[0004] The above patent document discloses a process for removing the screen assembly from the mold. After the screen assembly is injected and cured, the adhesive force between the glue and the mold is relatively large. Therefore, the screen is easily deformed and damaged during demolding. Summary of the invention

[0005] The purpose of the present invention is to provide a screen glue injection and demoulding device, which is used to solve the problem that the existing screen assembly is difficult to demould after glue injection and easily causes screen deformation.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a screen glue injection demoulding device, which is used to separate the screen glue injection from the upper mold of the glue injection mold after curing; it includes a base, a positioning mold, a lifting mechanism and an adsorption mechanism; the positioning mold is arranged on the base, and the positioning mold is used to position the glue injection mold; the positioning mold includes a body, a blowing element and a limiting member, the body is provided with a positioning surface, the positioning surface is provided with a mounting groove, the blowing element is arranged in the mounting groove, the blowing element is connected to an air pressure input device, so that the blowing element blows air into the glue injection port of the glue injection mold positioned on the positioning surface; the limiting member is arranged on the body, and is used to limit the glue injection mold on the positioning surface;

[0007] A support seat is provided on the base, and a mounting portion is provided on the support seat; the lifting mechanism is provided on the mounting portion, and the adsorption mechanism is provided at the bottom end of the lifting mechanism. The adsorption mechanism includes a suction nozzle for adsorbing on the upper surface of the screen assembly in the injection mold, and the lifting mechanism drives the adsorption mechanism to rise and fall repeatedly.

[0008] Preferably, the lifting mechanism drives the adsorption mechanism to rise and fall by a gradually increasing amplitude.

[0009] Preferably, the main body includes a mounting seat, a support plate and at least two groups of elastic limiting components arranged relatively to each other; the elastic limiting component includes a guide column and a compression spring; the support plate is provided with a guide hole cooperating with the guide column, the upper end of the guide hole is provided with a countersunk hole, the guide column passes through the countersunk hole and the guide hole and is fixedly connected to the mounting seat, the upper end of the guide column is provided with a limiting portion, the compression spring is sleeved on the guide column and limited in the countersunk hole, so as to elastically press the support plate on the mounting seat.

[0010] Preferably, the body is further provided with an installation cavity, the installation cavity is provided with a cylinder, the blowing element is an air nozzle provided on the cylinder, the cylinder pushes the air nozzle upwards and extends into the injection hole of the injection mold, and a sealing ring is also sleeved on the air nozzle.

[0011] Preferably, the limiting members are in two groups and are relatively arranged on both sides of the main body, the limiting members include a limiting cylinder and a limiting plate, the limiting cylinder is connected to the main body, and the limiting plate is connected to the limiting cylinder; the limiting plate is an L-shaped plate, including a side plate and a top plate, the side plate is used to limit the side of the injection mold, and the positioning is used to limit the top side of the injection mold.

[0012] Preferably, a placement plate is extended from one side of the main body for placing the demoulded screen; the side of the placement plate forms a side wall for limiting the injection mold.

[0013] Preferably, a translation mechanism is also provided on the base, and the positioning mold is provided on the translation mechanism.

[0014] Preferably, the lifting mechanism is an electric screw linear module.

[0015] Preferably, the adsorption mechanism includes a connecting seat, a base plate and a suction cup; the connecting seat is connected to the lifting mechanism, an air cavity is provided on the bottom side of the connecting seat, the base plate is arranged in the air cavity, and an inner wall of the air cavity and an outer wall of the base plate form a gap, an air pipe connected to the gap is provided on the outside of the connecting seat, and the air inlet pipe is connected to the air pump device; a plurality of concave cavities are provided on the bottom side of the base plate, and the suction cup is arranged in the concave cavities.

[0016] Preferably, the positioning mold includes two groups of the blowing elements, which are arranged relatively on the main body; two groups of lifting mechanisms are provided on the support seat, and the adsorption mechanism is provided at the bottom end of each lifting mechanism.

[0017] The screen glue injection and demoulding device of the present invention has the following beneficial effects:

[0018] After the injection and curing, the injection mold is positioned on the body, and the screen assembly faces upwards. The limiter limits the injection mold, and the blowing element extends into the injection hole of the injection mold; the lifting mechanism drives the adsorption mechanism to descend, and the adsorption mechanism is adsorbed on the top of the screen assembly; while the lifting mechanism repeatedly drives the adsorption mechanism to rise and fall, the blowing element blows air into the injection mold. Therefore, the screen assembly is repeatedly lifted and lowered, and air is blown downwards, which effectively helps demoulding, and repeated lifting and lowering can effectively avoid deformation of the screen and ensure the quality of demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A structural diagram of a screen glue injection and demoulding device provided in an embodiment of the present invention.

[0021] Figure 2 A structural diagram of a positioning mold of a screen glue injection and demoulding device provided in an embodiment of the present invention.

[0022] Figure 3 A cross-sectional view of a positioning mold of a screen glue injection and demoulding device provided in an embodiment of the present invention.

[0023] Figure 4 A structural diagram of the adsorption mechanism of the screen glue injection and demoulding device provided in an embodiment of the present invention.

[0024] Figure 5 A cross-sectional view of the adsorption mechanism of the screen glue injection and demoulding device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following specific implementation manner will be further described in conjunction with the above-mentioned drawings.

[0026] In the following, various specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. However, it will be apparent to those skilled in the art that the described embodiments may be practiced without some or all of these specific details. In other cases, well-known processing steps are not specifically described.

[0027] In one embodiment of the screen glue injection and demoulding device of the present invention, please refer to Figures 1 to 5 ; The screen glue injection demoulding device is used to separate the screen glue from the upper mold of the glue injection mold 500 after the screen glue is solidified, so as to avoid the problem of deformation of the screen assembly during the demoulding process, thereby protecting the screen assembly. Specifically, the screen glue injection demoulding device includes a base 100, a positioning mold 200, a lifting mechanism 300 and an adsorption mechanism 400. The positioning mold 200 is arranged on the base 100, and the positioning mold 200 is used to position the glue injection mold 500. Specifically, the positioning mold 200 includes a body 210, a blowing element 220 and a limiting member 230. The body 210 is provided with a positioning surface, and the positioning surface is provided with a mounting groove 211. The blowing element 220 is arranged in the mounting groove 211. The blowing element 220 is connected to the air pressure input device so that the blowing element 220 can blow air into the glue injection port of the glue injection mold 500 positioned on the positioning surface. The limiting member 230 is arranged on the body 210, and is used to limit the glue injection mold 500 on the positioning surface. Specifically, the glue injection mold 500 can be positioned on the body 210 , and the limiting member 230 fixes the glue injection mold 500 on the positioning surface, and the blowing element 220 extends into the glue injection hole of the glue injection mold 500 .

[0028] Reference Figures 1 to 3 The base 100 is provided with a support seat 110, and the support seat 110 is provided with a mounting portion 111. The lifting mechanism 300 is provided on the mounting portion 111, and the adsorption mechanism 400 is provided at the bottom end of the lifting mechanism 300. The adsorption mechanism 400 includes a suction nozzle 410 for adsorbing the upper surface of the screen assembly in the injection mold 500. The lifting mechanism 300 drives the adsorption mechanism 400 to rise and fall repeatedly.

[0029] Specifically, in the screen glue injection and demolding device of this embodiment, the glue injection mold 500 is positioned on the body 210 after the glue injection and curing, and the screen assembly faces upward, the limiter 230 limits the glue injection mold 500, and the blowing element 220 extends into the glue injection hole of the glue injection mold 500. The lifting mechanism 300 drives the adsorption mechanism 400 to descend, and the adsorption mechanism 400 is adsorbed on the top of the screen assembly; while the lifting mechanism 300 repeatedly drives the adsorption mechanism 400 to rise and fall, the blowing element 220 blows air into the glue injection mold 500. Therefore, the screen assembly is repeatedly lifted and lowered, and air is blown downward, which effectively helps demolding, and repeated lifting and lowering can effectively avoid deformation of the screen and ensure the quality of demolding.

[0030] Preferably, refer to Figure 1 , the lifting mechanism 300 drives the adsorption mechanism 400 to lift and lower gradually, so that the screen assembly can be gradually taken out from the injection mold 500. Specifically, the lifting mechanism 400 is an electric screw linear module.

[0031] More preferably, referring to Figure 2 and Figure 3 The positioning mold 200 includes two sets of blowing elements 220, which are arranged on the body 210 in a relative manner; the support base 110 is provided with two sets of lifting mechanisms 300, and each lifting mechanism 300 is provided with a suction mechanism 400 at the bottom. Therefore, both sides of the screen assembly can be demoulded at the same time or alternately.

[0032] Preferably, refer to Figure 3 The body 210 includes a mounting seat 212, a support plate 213 and at least two sets of elastic limiting components arranged opposite to each other. The elastic limiting components include a guide post 214 and a compression spring 215. The support plate 213 is provided with a guide hole 216 that cooperates with the guide post 214. The upper end of the guide hole 216 is provided with a countersunk hole 217. The guide post 214 passes through the countersunk hole 217 and the guide hole 216 and is fixedly connected to the mounting seat 212. The upper end of the guide post 214 is provided with a limiting portion 218. The compression spring 215 is sleeved on the guide post 214 and limited in the countersunk hole 217, which is used to elastically press the support plate 213 on the mounting seat 212. In this embodiment, the support plate 213 can float upward. Specifically, when the adsorption mechanism 400 sucks the screen assembly upward, when the demolding force between the screen assembly and the injection mold 500 is too large, the elastic force of the compression spring 215 can be overcome, so that the support plate 213 can be lifted upward, avoiding the problem of damaging the screen assembly, and providing good protection for the screen assembly.

[0033] More preferably, refer to Figure 3 The main body 210 is also provided with an installation cavity 201, and the installation cavity 201 is provided with a cylinder 240. The blowing element 220 is an air nozzle provided on the cylinder 240. The cylinder 240 pushes the air nozzle upward to extend into the injection hole of the injection mold 500. A sealing ring is also sleeved on the air nozzle. When the injection mold 500 is positioned on the top side of the main body 210, the cylinder 240 pushes the air nozzle to extend into the injection mold 500.

[0034] Preferably, refer to Figure 1 and Figure 3 The limiting members 230 are in two groups and are arranged on both sides of the body 210. The limiting members 230 include a limiting cylinder 231 and a limiting plate 232. The limiting cylinder 231 is connected to the body 210, and the limiting plate 232 is connected to the limiting cylinder 231. The limiting plate 232 is an L-shaped plate, including a side plate and a top plate. The side plate is used to limit the side of the injection mold, and the positioning is used to limit the top side of the injection mold. In this way, the injection mold 500 is fixed to the top side of the body 210.

[0035] Preferably, refer to Figure 2 A placement plate 250 is also extended from one side of the main body 210 for placing the demoulded screen; the side of the placement plate 250 forms the side wall of the limiting injection mold 500.

[0036] Preferably, refer to Figure 1 The base 100 is also provided with a translation mechanism 120, and the positioning mold 200 is provided on the translation mechanism 120. The translation mechanism 120 pushes the injection mold 500 to the bottom side of the adsorption mechanism 400.

[0037] Preferably, refer to Figure 4 and Figure 5 , the adsorption mechanism 400 includes a connecting seat 420, a bottom plate 430 and a suction cup 410. The connecting seat 420 is connected to the lifting mechanism 300, an air cavity 421 is provided on the bottom side of the connecting seat 420, the bottom plate is arranged in the air cavity 421, and a gap 401 is formed between the inner wall of the air cavity 421 and the outer wall of the bottom plate 430, and an air pipe connected to the gap 401 is provided on the outer side of the connecting seat 420, and the air pipe is connected to the air pump device. A plurality of concave cavities 431 are provided on the bottom side of the bottom plate 430, and the suction cup 410 is arranged in the concave cavity 431. In this embodiment, when the adsorption mechanism 400 sucks up the screen assembly, an air source can be provided to the gap 401 through the air pump device, so that an air flow with a certain air pressure is blown out from the gap 401 and blown between the screen assembly and the bottom of the injection mold 500, so that the screen assembly can be further lifted upward. It is more conducive to the demolding of the screen assembly.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen glue injection demoulding device, used for separating the screen glue injection mold from the upper mold after the screen glue injection is cured; characterized in that: It comprises a base, a positioning mold, a lifting mechanism and an adsorption mechanism; the positioning mold is arranged on the base, and the positioning mold is used to position the glue injection mold; the positioning mold comprises a body, a blowing element and a limiting member, the body is provided with a positioning surface, the positioning surface is provided with a mounting groove, the blowing element is arranged in the mounting groove, the blowing element is connected to an air pressure input device, so that the blowing element blows air into the glue injection port of the glue injection mold positioned on the positioning surface; the limiting member is arranged on the body, and is used to limit the glue injection mold on the positioning surface; the base is provided with a supporting seat, and the supporting seat is provided with a mounting portion; the lifting mechanism is arranged on the mounting portion, and the adsorption mechanism is arranged At the bottom end of the lifting mechanism, the adsorption mechanism includes a suction nozzle for adsorbing on the upper surface of the screen assembly in the injection mold, and the lifting mechanism drives the adsorption mechanism to rise and fall repeatedly; the main body includes a mounting seat, a support plate and at least two groups of elastic limiting assemblies arranged opposite to each other; the elastic limiting assembly includes a guide column and a compression spring; a guide hole cooperating with the guide column is provided on the support plate, a countersunk hole is provided at the upper end of the guide hole, the guide column passes through the countersunk hole and the guide hole and is fixedly connected to the mounting seat, a limiting portion is provided at the upper end of the guide column, the compression spring is sleeved on the guide column and limited in the countersunk hole, so as to elastically press the support plate on the mounting seat.

2. The screen glue injection and demoulding device according to claim 1 is characterized in that: The lifting mechanism drives the adsorption mechanism to rise and fall with a gradually increasing amplitude.

3. The screen glue injection and demoulding device according to claim 1 or 2, characterized in that: The body is also provided with an installation cavity, in which a cylinder is provided, and the blowing element is an air nozzle provided on the cylinder. The cylinder pushes the air nozzle upwards and extends into the injection hole of the injection mold, and a sealing ring is also sleeved on the air nozzle.

4. The screen glue injection and demoulding device according to claim 1, characterized in that: There are two groups of limit members, which are relatively arranged on both sides of the main body. The limit members include a limit cylinder and a limit plate. The limit cylinder is connected to the main body, and the limit plate is connected to the limit cylinder. The limit plate is an L-shaped plate, including a side plate and a top plate. The side plate is used to limit the side of the injection mold, and the top plate is used to limit the top side of the injection mold.

5. The screen glue injection and demoulding device according to claim 4 is characterized in that: A placement plate is also extended from one side of the body for placing the demoulded screen; the side of the placement plate forms a side wall for limiting the injection mold.

6. The screen glue injection and demoulding device according to claim 1 or 2, characterized in that: The base is also provided with a translation mechanism, and the positioning mold is arranged on the translation mechanism.

7. The screen glue injection and demoulding device according to claim 1 or 2, characterized in that: The lifting mechanism is an electric screw linear module.

8. The screen glue injection and demoulding device according to claim 1, characterized in that: The adsorption mechanism includes a connecting seat, a base plate and a suction cup; the connecting seat is connected to the lifting mechanism, an air cavity is provided on the bottom side of the connecting seat, the base plate is arranged in the air cavity, and an inner wall of the air cavity and an outer wall of the base plate form a gap, an air pipe connected to the gap is provided on the outside of the connecting seat, and the air pipe is connected to the air pump device; a plurality of concave cavities are provided on the bottom side of the base plate, and the suction cup is arranged in the concave cavities.

9. The screen glue injection and demoulding device according to any one of claims 1, 2 and 8, characterized in that: The positioning mold includes two groups of blowing elements, which are arranged oppositely on the main body; two groups of lifting mechanisms are arranged on the support seat, and the bottom end of each lifting mechanism is provided with the adsorption mechanism.

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