Injection molding device for processing electric appliance display panel

Abstract

The utility model provides an injection molding device for processing a display panel of an electric appliance. The injection molding device comprises an injection molding table, the upper mold block and the lower mold groove are respectively mounted on the lower side of the top plate and the upper side of the injection molding table; and an injection molding groove is formed in the top plate, the bottom of the injection molding groove downwards penetrates through the upper mold block to be provided with an injection molding hole, an electromagnetic valve is installed in the injection molding hole, and an injection molding assembly is arranged in the injection molding groove. An injection molding material is conveyed into an injection molding cavity of an injection molding groove through a discharging hole of a discharging pipe, a hollow shaft motor can drive a discharging block to slide up and down in the injection molding cavity of the injection molding groove to discharge the injection molding material to the position between an upper mold block and a lower mold groove through an injection molding hole for injection molding operation, and the injection speed can be controlled by adjusting the rotating speed of the hollow shaft motor; and the metering block is adjusted to move up and down in the injection molding groove, so that the size of an injection molding cavity in the injection molding groove can be adjusted according to injection molding of different electric appliance display panels.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding device technical field, especially to a kind of injection molding device for the processing of electric appliance display panel. BACKGROUND

[0002] The injection molding device for the processing of electric appliance display panel is a device specially used for producing plastic parts of electric appliance display panel, and is mainly used for making various shapes of plastic products by hot melt plastic or thermosetting plastic through mold. In the production of electric appliance display panel, it can realize high-precision pattern printing, bright color and rich details, while maintaining the lightness and durability of plastic material.

[0003] The existing utility model patent application number: CN201811547797.1 discloses a display panel injection molding mold convenient for injection molding, which is aimed at the problem that the separation of the existing display panel injection molding part and the mold is not thorough enough and is easy to cause damage to the injection molding part. The present application proposes the following scheme, which includes a mounting frame, the mounting frame includes a workbench, the top side of the workbench is symmetrically fixedly connected with support rods, the top ends of the two support rods are fixedly connected with a support plate, a connecting plate is slidably connected between the outer walls of the two support rods, an upper mold is fixedly installed on the bottom side of the connecting plate, and a driving mechanism is connected to the top side of the connecting plate. The top side of the workbench is fixedly connected with a lower mold, the inner wall of the lower mold is fixedly connected with a limiting frame in the middle, an inner plate is slidably installed in the inner wall of the lower mold above the limiting frame, and limiting rods are fixedly connected to the bottom side of the inner plate at both ends. The present application has novel structure and is convenient to use, which can facilitate the separation of the display panel injection molding part and the mold, while ensuring the quality of the display panel, thereby improving production efficiency.

[0004] The above-mentioned patent transports injection molding material between the upper mold and the lower mold through the feeding pipe installed on the upper side of the connecting plate. When injecting different electric appliance display panels, it is difficult to control the amount of injection molding material transported in the feeding pipe and adjust the injection speed of the injection molding material, which may cause uneven filling of the mold and warping. UTILITY MODEL CONTENT

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide an injection molding device for the processing of electric appliance display panel, which has the advantages of being convenient to disassemble, replace and has no influence on polishing quality.

[0006] To achieve the above-mentioned purposes and other related purposes, the present application provides the following technical solutions:

[0007] The utility model provides an injection molding device for electric appliance display panel processing, it includes: the injection molding platform of top provided with the top plate, the upper die block and lower die groove are installed respectively in the downside of top plate and the upside of injection molding platform, the side of injection molding platform is equipped with the air cylinder, the side of top plate is equipped with the connecting block fixed connection with the telescopic axle of air cylinder, be provided with the demoulding subassembly between injection molding platform and top plate, the inside of top plate is provided with the injection molding groove, the bottom of injection molding groove is equipped with the injection molding hole down -through upper die block, the solenoid valve is installed in the injection molding hole, be provided with injection molding subassembly in the injection molding groove, injection molding subassembly includes the metering block and the discharge block of sliding fit in the injection molding groove.

[0008] In an embodiment of the utility model, the upper side of metering block is equipped with hollow shaft motor, the inner wall of hollow shaft motor output shaft is equipped with threaded cylinder, the upper side of discharge block is equipped with threaded rod penetrating metering block and threaded cylinder thread cooperation, the upper side of metering block is equipped with downwardly -penetrating blanking tube, the circumferential side of blanking tube lower part is equipped with discharge hole, the bottom of metering block is equipped with the first recess around the circumferential side of blanking tube, the bottom of first recess is equipped with touch switch, the upper side of discharge block is equipped with convex ring matched with first recess.

[0009] In an embodiment of the utility model, the bottom of discharge block is equipped with second recess, the second recess is provided with sealing cover, the side wall of second recess is equipped with limiting groove, the upper side of sealing cover is equipped with L-shaped limiting block sliding fit in limiting groove, the lower side between the horizontal side of L-shaped limiting block and the bottom of limiting groove is equipped with first spring.

[0010] The above technical scheme is realized, when the electric appliance display panel is injection molded, the input end of blanking tube is installed on the discharge port of injection molding box, so that the injection molding material is conveyed to the injection molding cavity of injection molding groove through the discharge hole of blanking tube, the hollow shaft motor can drive the discharge block to slide up and down in the injection molding cavity of injection molding groove through the thread cooperation of threaded cylinder and threaded rod, so that the discharge block can push the injection molding material in the injection molding cavity of injection molding groove to discharge to the upper die block and the lower die groove for injection molding operation, when the discharge block is located at the bottom of metering block and is in close contact with it, the convex ring is located in the first recess and is in contact with the touch switch, at this time, the touch switch controls the solenoid valve to be in the closed state through the signal, the blanking tube pushes the sealing cover out of the second recess, so that the injection molding material is conveyed to the injection molding cavity of injection molding groove, when the conveying is completed, the hollow shaft motor drives the discharge block to move downward, the convex ring is away from the touch switch, at this time, the touch switch controls the solenoid valve to be in the open state through the signal, at the same time, the blanking tube is closed and no longer conveys the injection molding material, when the discharge block moves downward, the sealing cover drives it to move upward through the action force of first spring, so that the second recess is closed, so that the discharge block can push the injection molding material in the injection molding cavity of injection molding groove for injection molding operation.

[0011] In an embodiment of the utility model, the upper side of metering block is equipped with a toothed plate, one side of toothed plate is equipped with a scale, the lateral wall of injection molding groove is equipped with a fixed frame which is in sliding cooperation with toothed plate, the side of fixed frame is equipped with an indicating block which corresponds to scale, the upper side of top plate is equipped with two vertical plates, the gear and worm wheel of same center shaft are in rotary cooperation between two vertical plates, the gear is engaged with toothed plate, the upper side of top plate is equipped with a servo motor, the output shaft of servo motor is equipped with a worm which is engaged with worm wheel.

[0012] The above technical solution is realized, the servo motor is opened, the gear is driven to rotate between the two vertical plates through the engagement of the worm wheel and the worm, the rotating gear is engaged with the toothed plate on the upper side of the metering block, the metering block can be driven to move up and down in the injection molding groove, so that the size of the injection cavity in the injection molding groove can be adjusted according to the injection molding of different electric appliance display panels, the scale and the indicating block corresponding to the toothed plate and the fixed frame are arranged, the accurate control of the injection amount of the injection material is ensured, and the high requirement of the display panel on the precision is adapted.

[0013] In an embodiment of the utility model, the demolding assembly includes a plurality of fixed rods arranged at the bottom of the top plate, the bottom of the fixed rod is equipped with an abutting block, the inside of the injection molding table is in sliding cooperation with a demolding plate which is in sliding cooperation with the fixed rod, the demolding plate is located on the upper side of the abutting block, the second spring is arranged between the upper side of the demolding plate and the inner wall of the injection molding table, the demolding rod is arranged on the upper side of the demolding plate and penetrates into the lower mold groove, and the demolding block is arranged on the upper side of the demolding rod.

[0014] The above technical solution is realized, when the injection molding is completed, the cylinder drives the top plate to move up through the connecting block, the top plate drives the demolding plate to move up through the fixed rod and the abutting block, and the demolding plate drives the electric appliance display panel after injection molding to demold through the demolding rod and the demolding block.

[0015] As described above, the utility model provides an injection molding device for electric appliance display panel processing, which has the following beneficial effects:

[0016] The utility model provides an injection molding device for electric appliance display panel processing, include: the injection bench of top setting has the top board, install upper mould piece and lower mould groove respectively in the top board downside and injection bench upside, the side of injection bench is equipped with the pneumatic cylinder, the side of top board is equipped with the connecting block fixed connection with the telescopic axle of pneumatic cylinder, be provided with stripping assembly between injection bench and top board, the top board is opened in and has injection slot, the bottom of injection slot is opened with injection hole through upper mould piece downwards, install solenoid valve in the injection hole, be provided with injection assembly in the injection slot, injection assembly includes the metering block and discharge block of sliding fit in the injection slot, injection material is transported to the injection cavity of injection slot through the discharge hole of blanking pipe, hollow shaft motor can drive discharge block to slide up and down in the injection cavity of injection slot and exports injection material through injection hole to upper mould piece and lower mould groove between and carries out injection operation, can control injection speed through the speed of hollow shaft motor, ensure that material evenly fills the mould, reduce internal stress and warping, thereby the surface flatness of display panel and long -term use's reliability are improved, through adjusting metering block moves up and down in the injection slot, thereby can adjust the size of injection cavity in the injection slot according to different electric appliance display panel injection, ensure the accurate control of injection material injection amount. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Structure schematic diagram showing as the whole of the utility model embodiment.

[0018] Figure 2 Structure schematic diagram showing as the top plate side section of the utility model embodiment.

[0019] Figure 3 Structure schematic diagram showing as the injection assembly part of the utility model embodiment.

[0020] Figure 4 Structure schematic diagram showing as the utility model embodiment Figure 3 At -A.

[0021] Figure 5 Structure schematic diagram showing as the stripping assembly of the utility model embodiment.

[0022] Figure 6 Structure schematic diagram showing as the utility model embodiment Figure 5 At -B.

[0023] Explanation of each technical feature label in the drawing:

[0024] 1, injection molding platform; 2, top plate; 3, air cylinder; 4, connecting block; 5, demolding assembly; 501, fixed rod; 502, abutting block; 503, demolding plate; 504, second spring; 505, demolding rod; 506, demolding block; 6, upper mold block; 7, lower mold groove; 8, injection molding assembly; 801, metering block; 802, discharge block; 803, hollow shaft motor; 804, threaded cylinder; 805, threaded rod; 806, discharge pipe; 807, discharge hole; 808, first groove; 809, touch switch; 810, convex ring; 811, second groove; 812, sealing cover; 813, limiting groove; 814, L-shaped limiting block; 815, first spring; 816, toothed plate; 817, scale; 818, fixed frame; 819, indicating block; 820, vertical plate; 821, gear; 822, worm gear; 823, servo motor; 824, worm; 9, injection molding groove; 10, injection molding hole; 11, electromagnetic valve. DETAILED DESCRIPTION

[0025] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0026] Please refer to Figures 1-6 It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" used in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship without substantially changing the technical content is also considered as the scope of the present application.

[0027] Please refer to Figure 1 and Figure 2The utility model provides an injection molding device for electric appliance display panel processing, including the injection bench 1 of top setting top plate 2, the upper die block 6 and lower die groove 7 of installing respectively in the downside of top plate 2 and the upside of injection bench 1, the side of injection bench 1 is equipped with the cylinder 3, the side of top plate 2 is equipped with the fixed connection of the telescopic axle fixed connection of cylinder 3's connecting block 4, and be provided with stripping assembly 5 between injection bench 1 and top plate 2, the inside of top plate 2 is seted up with injection slot 9, and the bottom of injection slot 9 is seted up with injection hole 10 to the downward perforation upper die block 6, and installs solenoid valve 11 in injection hole 10, is provided with injection assembly 8 in injection slot 9, and injection assembly 8 includes the metering block 801 of sliding fit in injection slot 9 and the discharge block 802, please refer to Figures 3-4 The upside of metering block 801 is equipped with hollow shaft motor 803, injection material is delivered to the injection cavity of injection slot 9 through the discharge orifice 807 of blanking pipe 806, and hollow shaft motor 803 can drive discharge block 802 to slide up and down in the injection cavity of injection slot 9 and expel injection material to the injection operation between upper die block 6 and lower die groove 7 through injection hole 10, can control injection speed by adjusting the rotating speed of hollow shaft motor 803, ensure that material evenly fills the mould, reduce internal stress and warping, thereby improve the surface flatness of display panel and the reliability of long-term use, by adjusting the up-and-down movement of metering block 801 in injection slot 9, the size of injection cavity in injection slot 9 can be adjusted according to the injection of different electric appliance display panel, to ensure the accurate control of injection material injection amount.

[0028] Please refer to Figures 3-4The inner wall of the output shaft of the hollow shaft motor 803 is provided with a threaded cylinder 804, the upper side of the discharging block 802 is provided with a threaded rod 805 penetrating the metering block 801 and threadedly matched with the threaded cylinder 804, the upper side of the metering block 801 is provided with a downward penetrating discharging pipe 806, the periphery of the lower part of the discharging pipe 806 is provided with a discharging hole 807, the bottom of the metering block 801 is provided with a first groove 808 surrounding the periphery of the discharging pipe 806, the bottom of the first groove 808 is provided with a touch switch 809, the upper side of the discharging block 802 is provided with a convex ring 810 matched with the first groove 808, the bottom of the discharging block 802 is provided with a second groove 811, the second groove 811 is provided with a sealing cover 812, the sidewall of the second groove 811 is provided with a limiting groove 813, the upper side of the sealing cover 812 is provided with an L-shaped limiting block 814 slidingly matched in the limiting groove 813, the lower side of the transverse edge of the L-shaped limiting block 814 and the bottom of the limiting groove 813 are provided with a first spring 815; when the injection molding is performed on the electric appliance display panel, the input end of the discharging pipe 806 is installed on the discharging port of the injection molding box, so that the injection molding material is conveyed into the injection molding cavity of the injection molding groove 9 through the discharging hole 807 of the discharging pipe 806, the hollow shaft motor 803 can drive the discharging block 802 to slide up and down in the injection molding cavity of the injection molding groove 9 through the thread matching of the threaded cylinder 804 and the threaded rod 805, so that the discharging block 802 can push the injection molding material in the injection molding cavity of the injection molding groove 9 to discharge to the upper mold block 6 and the lower mold groove 7 to perform the injection molding operation, when the discharging block 802 is located at the bottom of the metering block 801 and is in close contact with the metering block 801, the convex ring 810 is located in the first groove 808 and is in contact with the touch switch 809, at this time, the touch switch 809 controls the electromagnetic valve 11 to be in the closed state through the signal, the sealing cover 812 is pushed out of the second groove 811 by the discharging pipe 806, so that the injection molding material is conveyed into the injection molding cavity of the injection molding groove 9, when the conveying is completed, the discharging block 802 is driven downward by the hollow shaft motor 803, the convex ring 810 is away from the touch switch 809, at this time, the touch switch 809 controls the electromagnetic valve 11 to be in the open state through the signal, at the same time, the discharging pipe 806 is closed and no longer conveys the injection molding material, when the discharging block 802 moves downward, the sealing cover 812 is driven upward by the action force of the first spring 815 to close the second groove 811, so that the discharging block 802 can push the injection molding material in the injection molding cavity of the injection molding groove 9 to perform the injection molding operation.

[0029] Please refer to Figure 6The upper side of the metering block 801 is provided with a toothed plate 816, one side of the toothed plate 816 is provided with a scale 817, the side wall of the injection slot 9 is provided with a fixed frame 818 which is in sliding fit with the toothed plate 816, the side edge of the fixed frame 818 is provided with an indicating block 819 corresponding to the scale 817, the upper side of the top plate 2 is provided with two vertical plates 820, the gear 821 and the worm gear 822 of the same center shaft are in rotary fit between the two vertical plates 820, the gear 821 is in engagement with the toothed plate 816, the upper side of the top plate 2 is provided with a servo motor 823, the output shaft of the servo motor 823 is provided with a worm 824 which is in engagement with the worm gear 822; the servo motor 823 is started to drive the gear 821 to rotate between the two vertical plates 820 through the engagement of the worm gear 822 and the worm 824, the rotating gear 821 is in engagement with the toothed plate 816 on the upper side of the metering block 801, so that the metering block 801 can be driven to move up and down in the injection slot 9, thereby the size of the injection cavity in the injection slot 9 can be adjusted according to the injection of different electric appliance display panels, the scale 817 and the indicating block 819 corresponding to the toothed plate 816 and the fixed frame 818 are arranged, so that the accurate control of the injection amount of the injection material is ensured to adapt to the high requirement of the display panel on the precision.

[0030] Please refer to Figure 5 The demolding assembly 5 comprises a plurality of fixed rods 501 arranged on the bottom of the top plate 2, the bottom of the fixed rod 501 is provided with an abutting block 502, the inside of the injection platform 1 is in sliding fit with a demolding plate 503 which is in sliding fit with the fixed rod 501, the demolding plate 503 is located on the upper side of the abutting block 502, the second spring 504 is arranged between the upper side of the demolding plate 503 and the inner wall of the injection platform 1, the demolding rod 505 is arranged on the upper side of the demolding plate 503 and penetrates into the lower mold groove 7, and the demolding block 506 is arranged on the upper side of the demolding rod 505; after the injection is completed, the cylinder 3 drives the top plate 2 to move upwards through the connecting block 4, the top plate 2 drives the demolding plate 503 to move upwards through the fixed rod 501 and the abutting block 502, and the demolding plate 503 drives the electric appliance display panel after the injection is completed to demold through the demolding rod 505 and the demolding block 506.

[0031] The above embodiment only illustrates the principle and effect of the utility model, and is not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. An injection molding apparatus for processing electrical display panels, characterized in that, The utility model relates to an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof.

2. The injection molding device for processing an electric appliance display panel according to claim 1, characterized in that, The utility model discloses an injection molding platform and a demolding assembly thereof.

3. The injection molding device for processing an electric appliance display panel according to claim 2, wherein The utility model discloses an injection molding platform and a demolding assembly thereof.

4. The injection molding device for processing an electric appliance display panel according to claim 2, characterized in that, The utility model discloses an injection molding platform and a demolding assembly thereof.

5. The injection molding device for processing an electric appliance display panel according to claim 4, wherein The utility model discloses an injection molding platform and a demolding assembly thereof.

6. The injection molding device for processing an electric appliance display panel according to claim 1, characterized in that, The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. The utility model discloses an injection molding platform and a demolding assembly thereof. 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