CN114670398B - Backlight source rubber frame injection mold and injection molding method - Google Patents
Backlight source rubber frame injection mold and injection molding method Download PDFInfo
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- CN114670398B CN114670398B CN202210221366.6A CN202210221366A CN114670398B CN 114670398 B CN114670398 B CN 114670398B CN 202210221366 A CN202210221366 A CN 202210221366A CN 114670398 B CN114670398 B CN 114670398B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1742—Mounting of moulds; Mould supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1756—Handling of moulds or mould parts, e.g. mould exchanging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention is suitable for the technical field of injection molding of backlight rubber frames, and provides a backlight rubber frame injection mold and an injection molding method, wherein the mold comprises a mold core device, and the mold core device is detachably arranged on a lower mold base through an installation mechanism; the die comprises a die core device, a die mounting mechanism and a control mechanism, wherein the die core device is arranged on the die core device, the die mounting mechanism is matched with the die core device, the die mounting device is positioned right above the die core device, the height of the die mounting device relative to the die core device is adjusted through a hydraulic telescopic cylinder, the mounting mechanism comprises a rotary drum arranged on a lower die holder, and the position of the rotary drum along the lower die holder is adjusted through the control mechanism; the rotary drum is internally provided with a mounting sliding block through transverse spring support sliding, a mounting rod is fixedly mounted on the rotary drum, and the end part of the mounting rod is provided with an inclined surface. The injection mold provided by the embodiment of the invention can enable the mold core device to be fast fixed in the mounting cavity, and can realize the effect of fast detachment of the injection molding. The invention also provides a backlight source rubber frame injection molding method.
Description
Technical Field
The invention belongs to the technical field of injection molding of backlight rubber frames, and particularly relates to an injection mold and an injection molding method of a backlight rubber frame.
Background
A backlight is a light source located behind a Liquid Crystal Display (LCD) and its lighting effect will directly affect the visual effect of the liquid crystal display module (LCM). The liquid crystal display itself does not emit light, it displays graphics or it is the result of modulating light. The backlight source mainly comprises a light source, a light guide plate, an optical die, a back plate and a rubber frame, wherein the rubber frame is formed by adopting a mold for injection molding.
The patent document with the application number of CN201120372347.0 discloses a backlight rubber frame injection mold, wherein a rectangular injection mold a is transversely arranged on an upper mold plate, a plurality of convex grooves for placing LED lamps are formed in one side of the rectangular injection mold a, a rectangular injection mold b is transversely arranged on a lower mold plate, and a plurality of convex grooves for placing the LED lamps are formed in one side of the rectangular injection mold b; the backlight rubber frame injection mold is characterized in that the mold is transversely arranged, and the convex groove for placing the LED lamp is arranged on the side face of the mold.
An injection mold convenient to install is disclosed in a patent document with publication number CN112959605a, and comprises a ground, a fixed block, a frame body, an electric cabinet, a driving motor, a supporting block, a winding rotating wheel, a rotating rod, a wire hole, an iron wire lifting ring, a mold moving body, a material injection hole, a molding protrusion, a molding groove, a limiting rod, a mold fixing body, a cooling fan, a cooling fixing seat and a ventilation plate.
As another example, a sealing injection mold convenient to install is disclosed in the patent document with publication number CN215151312U, which comprises a base, a screw rod, a pressing plate, a first bevel gear, a mounting ring and a conical ring, the lower end of the base is provided with supporting legs, the upper surface of the base is provided with a mounting seat, the middle of the mounting seat is provided with a lower mold, the periphery of the mounting seat is provided with a chute, the middle of the chute is provided with a screw rod, the middle of the screw rod is connected with the pressing plate in a penetrating manner, the outer end of the screw rod is provided with the first bevel gear, the outer side of the mounting seat is provided with the mounting ring, and the upper end of the mounting ring is provided with the conical ring.
However, when the injection mold provided by the scheme is used, different mold cores are required to be replaced in the injection molding process of different products, the problem of complex operation is often caused in the concrete replacement process of the mold cores, the mounting mode structure of the mold is single, more tools such as bolts are required to be used, and the mold is inconvenient to use, and is inconvenient to detach and has great limitation when the mold is damaged and needs to be maintained and replaced.
Disclosure of Invention
The invention aims to provide a backlight rubber frame injection mold and an injection molding method, and aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions.
In a first aspect, in one embodiment of the present invention, a backlight frame injection mold, the injection mold includes:
the mold core device is detachably mounted on the lower mold base through a mounting mechanism;
the upper die device is positioned right above the die core device, the height of the upper die device relative to the die core device is adjusted through a hydraulic telescopic cylinder, the hydraulic telescopic cylinder is fixedly arranged on a lower die holder, and the upper die device is arranged at the telescopic end of the hydraulic telescopic cylinder;
the mounting mechanism comprises a rotary drum arranged on the lower die holder, and the position of the rotary drum along the lower die holder is adjusted by an adjusting mechanism; the rotary drum is internally provided with a mounting sliding block through transverse spring support sliding, a mounting rod is fixedly mounted on the rotary drum, and the end part of the mounting rod is provided with an inclined surface.
In one embodiment provided by the invention, the mounting sliding block is fixedly provided with the supporting sleeve rod, the supporting sleeve rod is sleeved on the square rod in an axial sliding manner, the other end of the square rod is fixedly connected with the operating panel, the operating panel is rotatably arranged on the lower die holder, and the operating panel with the rotation angle adjusted is fixed through the limit screw.
In one embodiment provided by the invention, the lower die holder is also provided with a support in a sliding manner, the rotary drum is rotationally connected with the support, and the support is connected with the adjusting mechanism; thus, in embodiments of the present invention, the position of the mounting bar may be adjusted by adjusting the position of the drum.
In one embodiment of the present invention, the mold core device includes a mold core seat, and a support channel matched with the mounting rod is provided on the mold core seat; the die holder is provided with a die holder matched with the die core device, and the die core device arranged in the mounting cavity is fixed through the mounting mechanism when the die core device is mounted in the die holder.
In one embodiment provided by the invention, the adjusting mechanism comprises a forward and reverse rotation double-shaft servo motor arranged on the lower die holder, a screw rod is arranged on an output shaft of the forward and reverse rotation double-shaft servo motor, a movable seat is arranged on the screw rod in a threaded connection mode, and the movable seat is fixedly connected with the support through a support connecting rod.
In one embodiment provided by the invention, the rotation angle of the rotary drum on the lower die holder is adjusted through the supporting mechanism; the supporting mechanism comprises a lower supporting plate and an upper supporting plate which are arranged in the installation cavity in a vertical sliding mode, and the lower supporting plate is in supporting connection with the upper supporting plate through a buffer spring.
In one embodiment provided by the invention, the outer ring of the rotary drum is coaxially and fixedly sleeved with a toothed ring, the supporting mechanism further comprises a rack which is arranged on the lower die holder in a vertical sliding manner, the rack is meshed with the toothed ring, and the rack is fixedly connected with the lower support plate through a fixed connecting rod in a supporting manner.
In one embodiment provided by the invention, the mold core device is further provided with a forming cavity, the mold core device is further provided with a demolding piece, the mold core device is provided with a demolding channel, the demolding piece comprises a limiting support block which is supported and slidably arranged in the demolding channel through a vertical spring, the limiting support block is fixedly provided with a support shaft in a penetrating manner, and the top end of the support shaft is fixedly provided with a demolding block corresponding to the forming cavity; the bottom of the fulcrum is rotatably provided with a roller, and the roller stretches into the supporting channel.
In one embodiment provided by the invention, the upper die device comprises an upper die holder fixedly arranged at the telescopic end of a hydraulic telescopic cylinder, a supply cavity is arranged in the upper die holder, the bottom end of the supply cavity is respectively communicated with a first channel and a second channel, a first one-way valve is arranged on the first channel, a second one-way valve is arranged on the second channel, a piston block is further arranged in the supply cavity, and the height of the piston block in the supply cavity is adjusted through a hydraulic telescopic rod; it can be understood that in the casting process of injection molding, the height position of the piston block in the supply cavity is adjusted by utilizing the telescopic function of the hydraulic telescopic rod, so that casting liquid can enter the supply cavity through the second channel, and further, the casting liquid in the supply cavity is discharged through the first channel;
the second one-way valve is used for enabling casting liquid to enter the supply cavity through the second channel in one way; the first one-way valve is used for enabling casting liquid in the supply cavity to be discharged through the first channel in one way;
the upper die device further comprises a forming block matched with the forming cavity, and the forming block is fixedly installed on the upper die device through a screw.
In a second aspect, the present invention further provides a method for injection molding a backlight frame, where the injection molding method includes the following steps: utilize adjustment mechanism adjustment rotary drum position on the die holder for the inclined plane is located the junction of mold core device and die holder, and at the in-process that mold core device moved down along the installation intracavity, the edge of mold core device supports on the inclined plane, can make the installation pole produce relative slip for the edge of mold core device, and the installation pole of this moment can be retracted in the die holder, when the installation pole aims at the supporting channel, under the elastic support restoring force effect of transverse spring, makes the installation pole support in the supporting channel, makes mold core device keep fixed in the installation intracavity, utilizes the flexible function of hydraulic telescoping cylinder, makes between last mold device and the mold core device the compound die, further realization injection molding.
Compared with the prior art, the injection mold provided by the embodiment of the invention has the advantages that the position of the rotary drum on the lower die holder is adjusted by the adjusting mechanism, so that the inclined surface is positioned at the joint of the mold core device and the lower die holder, at the moment, the inclined surface is upward, and in the process that the mold core device moves downwards along the installation cavity, the edge of the mold core device is propped against the inclined surface, so that the installation rod can slide relatively relative to the edge of the mold core device, and at the moment, the installation rod can retract into the lower die holder, further, under the action of the elastic supporting restoring force of the transverse spring, the installation rod is propped against the support channel, at the moment, the primary fixing of the mold core device is finished, then the position of the rotary drum is adjusted by the adjusting mechanism, so that the installation rod completely stretches into the support channel, namely, the inclined surface is completely positioned in the support channel, at the moment, the mold core device is fixed in the installation cavity, the mold core device cannot move upwards in the installation cavity, the installation cavity is kept fixed, and at the moment, and further, the mold core device and the mold device can be further clamped by the telescopic function of the hydraulic telescopic cylinder, so that the mold clamping and the injection molding device are further realized;
utilize adjustment mechanism to continue to adjust rotary drum relative position on the die holder, can make the installation pole continue to remove in the support passageway, until the inclined plane supports on the gyro wheel, at this moment, can upwards lift up spacing supporting shoe in the drawing of patterns passageway, and then make the module that takes off to reciprocate in the shaping intracavity to jack-up the injection molding in the shaping chamber, realize the effect that the injection molding breaks away from fast.
According to the embodiment of the invention, the rotating drum is driven to rotate by manually rotating the operating panel so as to enable the inclined surface to be downward, at the moment, the rotating drum can drive the lower support plate to move upwards for a certain distance due to the engagement of the racks and the toothed rings, and meanwhile, the upward-moving racks and the toothed rings are engaged to drive the drum to rotate so as to adjust the direction of the inclined surface, so that the inclined surface is positioned at the joint of the mold core device and the lower mold seat by utilizing the adjusting mechanism when the inclined surface is adjusted to be downward, at the moment, under the elastic supporting effect of the buffer spring, the mold core device is pushed to move upwards, the mounting rod is separated from the supporting channel, and meanwhile, the upward-moving lower support plate enables the buffer spring to be in a further compression state, so that the mold core device is helped to be quickly separated from the lower mold seat.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a structural diagram of a backlight rubber frame injection mold provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of the upper die device in the injection mold according to the present invention;
FIG. 3 is a schematic diagram of a lower mold device in an injection mold according to the present invention;
FIG. 4 is a schematic view of a partial enlarged structure at b in FIG. 3;
FIG. 5 is a schematic view of a partial enlarged structure at a in FIG. 1;
fig. 6 is a schematic view showing a partial structure of a mounting member in an injection mold according to the present invention.
In the accompanying drawings: 100. a lower die holder; 101. a mounting cavity; 200. a hydraulic telescopic cylinder; 300. an upper die device; 301. an upper die holder; 302. a supply chamber; 303. molding blocks; 304. a first channel; 305. a second channel; 306. a first one-way valve; 307. a second one-way valve; 308. a hydraulic telescopic rod; 309. a piston block; 400. a mold core device; 401. a die core seat; 402. a cooling coil; 403. a molding cavity; 404. a support channel; 405. a demolding channel; 500. a mounting mechanism; 501. a rotating drum; 502. a toothed ring; 503. a support; 504. square bar; 505. an operation panel; 506. a limit screw; 507. a support loop bar; 508. a transverse spring; 509. a mounting rod; 510. installing a sliding block; 511. an inclined surface; 600. a support mechanism; 601. a buffer spring; 602. a lower support plate; 603. an upper support plate; 604. a rack; 605. a fixed connecting rod; 700. an adjusting mechanism; 701. a forward and reverse rotation double-shaft servo motor; 702. a screw rod; 703. a movable seat; 704. a support link; 800. stripping the module; 801. a roller; 802. a support shaft; 803. a limit supporting block; 804. a vertical spring; 805. and (5) removing the module.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
Example 1
As shown in fig. 1, in one embodiment provided by the present invention, a backlight frame injection mold, the injection mold includes:
a mold core device 400, wherein the mold core device 400 is detachably mounted on the lower mold base 100 through a mounting mechanism 500;
the upper die device 300 is matched with the die core device 400, the upper die device 300 is located right above the die core device 400, the height of the upper die device 300 relative to the die core device 400 is adjusted through the hydraulic telescopic cylinder 200, the hydraulic telescopic cylinder 200 is fixedly arranged on the lower die holder 100, and the upper die device 300 is arranged at the telescopic end of the hydraulic telescopic cylinder 200.
In particular, as shown in fig. 1 and fig. 4-6, in the preferred embodiment provided by the present invention, the mounting mechanism 500 includes a rotary drum 501 disposed on the lower die holder 100, and the position of the rotary drum 501 along the lower die holder 100 is adjusted by an adjusting mechanism 700; the inside of the rotary drum 501 is supported and slidably provided with a mounting sliding block 510 through a transverse spring 508, a mounting rod 509 is fixedly mounted on the rotary drum 501, and an inclined surface 511 is arranged at the end part of the mounting rod 509.
Further, in the embodiment of the present invention, the mounting slider 510 is further fixedly provided with a supporting sleeve rod 507, the supporting sleeve rod 507 is axially slidably sleeved on the square rod 504, the other end of the square rod 504 is fixedly connected with the operation disc 505, the operation disc 505 is rotatably disposed on the lower die holder 100, and the operation disc 505 after adjusting the rotation angle is fixed by a limiting screw 506.
Further, in the embodiment of the present invention, the lower die holder 100 is further provided with a support 503 in a sliding manner, the drum 501 is rotatably connected with the support 503, and the support 503 is connected with the adjusting mechanism 700, and since the drum 501 is rotatably connected with the support 503, the position of the support 503 on the lower die holder 100 is adjusted by the adjusting mechanism 700, that is, the position of the drum 501 is adjusted; thus, in embodiments of the present invention, the position of the mounting bar 509 may be adjusted by adjusting the position of the drum 501.
Further, in the embodiment of the present invention, the mold core device 400 includes a mold core seat 401, and a support channel 404 that is matched with the mounting rod 509 is formed on the mold core seat 401.
Further, in the embodiment of the present invention, the lower die holder 100 is provided with a lower die holder 100 that is matched with the die core device 400, and the die core device 400 disposed in the mounting cavity 101 is fixed by the mounting mechanism 500 when the die core device 400 is mounted in the lower die holder 100.
In the specific use of the injection mold provided by the embodiment of the invention, the specific process of fixing the mold core device 400 placed in the mounting cavity 101 by using the mounting mechanism 500 is as follows, firstly, the position of the rotary drum 501 on the lower mold base 100 is adjusted by using the adjusting mechanism 700, so that the inclined surface 511 is positioned at the joint of the mold core device 400 and the lower mold base 100, at this time, because the direction of the inclined surface 511 on the mounting rod 509 is upward, in the process of moving the mold core device 400 downwards along the mounting cavity 101, the edge of the mold core device 400 abuts against the inclined surface 511, the mounting rod 509 can slide relatively to the edge of the mold core device 400, at this time, the mounting rod 509 can retract into the lower mold base 100, further, when the mounting rod 509 aligns to the support channel 404, under the action of the elastic supporting restoring force of the transverse spring 508, the mounting rod 509 abuts against the support channel 404, at this time, the fixing of the mold core device 400 is completed, then, the position of the rotary drum 501 is adjusted by further using the adjusting mechanism 700, so that the mounting rod 509 extends completely into the support channel 404, even if the inclined surface 511 is completely positioned in the support channel 404, the support channel 400, the edge of the mold core device 400 moves downwards, the mounting device 400 is fixed in the support channel, the mold core device 101 is not further, and the mold core device is further fixed in the cavity 101, and the expansion and the mold core device is not further moved in the cavity is further, and the expansion device is further, and the mold device is not fixed in the cavity is moved, and the mold is further, and the mold is moved, and the mold is further, and can is moved, and the mold, and can is moved, and is further, and is in the mold.
Example 2
As shown in fig. 1, in one embodiment provided by the present invention, a backlight frame injection mold, the injection mold includes:
a mold core device 400, wherein the mold core device 400 is detachably mounted on the lower mold base 100 through a mounting mechanism 500;
the upper die device 300 is matched with the die core device 400, the upper die device 300 is located right above the die core device 400, the height of the upper die device 300 relative to the die core device 400 is adjusted through the hydraulic telescopic cylinder 200, the hydraulic telescopic cylinder 200 is fixedly arranged on the lower die holder 100, and the upper die device 300 is arranged at the telescopic end of the hydraulic telescopic cylinder 200.
In particular, as shown in fig. 1 and fig. 4-6, in the preferred embodiment provided by the present invention, the mounting mechanism 500 includes a rotary drum 501 disposed on the lower die holder 100, and the position of the rotary drum 501 along the lower die holder 100 is adjusted by an adjusting mechanism 700; the inside of the rotary drum 501 is supported and slidably provided with a mounting sliding block 510 through a transverse spring 508, a mounting rod 509 is fixedly mounted on the rotary drum 501, and an inclined surface 511 is arranged at the end part of the mounting rod 509.
Further, in the embodiment of the present invention, the mounting slider 510 is further fixedly provided with a supporting sleeve rod 507, the supporting sleeve rod 507 is axially slidably sleeved on the square rod 504, the other end of the square rod 504 is fixedly connected with the operation disc 505, the operation disc 505 is rotatably disposed on the lower die holder 100, and the operation disc 505 after adjusting the rotation angle is fixed by a limiting screw 506.
Further, in the embodiment of the present invention, the lower die holder 100 is further provided with a support 503 in a sliding manner, the drum 501 is rotatably connected with the support 503, and the support 503 is connected with the adjusting mechanism 700, and since the drum 501 is rotatably connected with the support 503, the position of the support 503 on the lower die holder 100 is adjusted by the adjusting mechanism 700, that is, the position of the drum 501 is adjusted; thus, in embodiments of the present invention, the position of the mounting bar 509 may be adjusted by adjusting the position of the drum 501.
Further, in the embodiment of the present invention, the mold core device 400 includes a mold core seat 401, and a support channel 404 that is matched with the mounting rod 509 is formed on the mold core seat 401.
Further, in the embodiment of the present invention, the lower die holder 100 is provided with a lower die holder 100 that is matched with the die core device 400, and the die core device 400 disposed in the mounting cavity 101 is fixed by the mounting mechanism 500 when the die core device 400 is mounted in the lower die holder 100.
In the specific use of the injection mold provided by the embodiment of the invention, the specific process of fixing the mold core device 400 placed in the mounting cavity 101 by using the mounting mechanism 500 is as follows, firstly, the position of the rotary drum 501 on the lower mold base 100 is adjusted by using the adjusting mechanism 700, so that the inclined surface 511 is positioned at the joint of the mold core device 400 and the lower mold base 100, at this time, because the direction of the inclined surface 511 on the mounting rod 509 is upward, in the process of moving the mold core device 400 downwards along the mounting cavity 101, the edge of the mold core device 400 abuts against the inclined surface 511, the mounting rod 509 can slide relatively to the edge of the mold core device 400, at this time, the mounting rod 509 can retract into the lower mold base 100, further, when the mounting rod 509 aligns to the support channel 404, under the action of the elastic supporting restoring force of the transverse spring 508, the mounting rod 509 abuts against the support channel 404, at this time, the fixing of the mold core device 400 is completed, then, the position of the rotary drum 501 is adjusted by further using the adjusting mechanism 700, so that the mounting rod 509 extends completely into the support channel 404, even if the inclined surface 511 is completely positioned in the support channel 404, the support channel 400, the edge of the mold core device 400 moves downwards, the mounting device 400 is fixed in the support channel, the mold core device 101 is not further, and the mold core device is further fixed in the cavity 101, and the expansion and the mold core device is not further moved in the cavity is further, and the expansion device is further, and the mold device is not fixed in the cavity is moved, and the mold is further, and the mold is moved, and the mold is further, and can is moved, and the mold, and can is moved, and is further, and is in the mold.
With continued reference to fig. 1, 2 and 5, in the embodiment of the present invention, the adjusting mechanism 700 includes a counter-rotating dual-shaft servo motor 701 mounted on the lower die holder 100, a screw rod 702 is mounted on an output shaft of the counter-rotating dual-shaft servo motor 701, a moving seat 703 is mounted on the screw rod 702 in a threaded connection manner, and the moving seat 703 is fixedly connected with the support 503 through a support connecting rod 704.
Further, in the preferred embodiment provided by the present invention, the rotation angle of the drum 501 on the lower die holder 100 is adjusted by the supporting mechanism 600; the supporting mechanism 600 includes a lower supporting plate 602 and an upper supporting plate 603 that are slidably disposed in the mounting cavity 101, and the lower supporting plate 602 and the upper supporting plate 603 are connected through a buffer spring 601.
Further, in the embodiment of the present invention, the toothed ring 502 is coaxially and fixedly sleeved on the outer ring of the rotary drum 501, the supporting mechanism 600 further includes a rack 604 slidably disposed on the lower die holder 100, the rack 604 is meshed with the toothed ring 502, and the rack 604 is fixedly connected with the lower support plate 602 through a fixing link 605.
In the embodiment of the supporting mechanism 600 provided by the embodiment of the present invention, when the mold core device 400 extends into the mounting cavity 101 and is fixed by the mounting mechanism 500, the buffer spring 601 is in a compressed state, at this time, the inclined surface 511 extends completely into the supporting channel 404, and the elastic restoring force of the buffer spring 601 in the compressed state does not jack up the mold core device 400 from the mounting cavity 101.
With continued reference to fig. 1, 3 and 5, in the embodiment of the present invention, the mold core device 400 further has a molding cavity 403, the mold core device 400 is further provided with a demolding module 800, the mold core device 400 is provided with a demolding channel 405, the demolding module 800 includes a limit support block 803 slidably disposed in the demolding channel 405 and supported by a vertical spring 804, a fulcrum 802 is fixedly disposed on the limit support block 803 in a penetrating manner, and a demolding block 805 corresponding to the molding cavity 403 is fixedly mounted at the top end of the fulcrum 802; the bottom end of the fulcrum 802 is rotatably provided with a roller 801, and the roller 801 extends into the support channel 404.
It can be appreciated that in the specific use of the injection mold provided in the embodiment of the present invention, the adjusting mechanism 700 is used to continuously adjust the relative position of the rotary drum 501 on the lower mold base 100, so that the mounting rod 509 can continuously move in the supporting channel 404 until the inclined surface 511 abuts against the roller 801, at this time, the limiting supporting block 803 can be lifted upwards in the demolding channel 405, so that the demolding block 805 can be moved upwards in the molding cavity 403, so as to jack up the injection molding piece in the molding cavity 403, and achieve the effect of quick detachment of the injection molding piece.
In the embodiment of the present invention, the rotation of the operation disc 505 is manually performed to rotate the drum 501, so as to make the inclined surface 511 downward, at this time, due to the engagement of the rack 604 and the toothed ring 502, the rotating drum 501 can drive the lower support plate 602 to move upward for a distance, and at the same time, the upward-moving rack 604 is engaged with the toothed ring 502 to drive the drum 501 to rotate, so as to adjust the orientation of the inclined surface 511, so that when the inclined surface 511 is adjusted downward, the inclined surface 511 is located at the junction between the mold core device 400 and the lower mold base 100 by using the adjusting mechanism 700, at this time, under the elastic supporting effect of the buffer spring 601, the mold core device 400 is pushed to move upward, and the mounting rod 509 is separated from the supporting channel 404, and at the same time, the upward-moving lower support plate 602 makes the buffer spring 601 in a further compressed state, which is helpful for realizing rapid separation of the mold core device 400 from the lower mold base 100.
Example 3
As shown in fig. 1, in one embodiment provided by the present invention, a backlight frame injection mold, the injection mold includes:
a mold core device 400, wherein the mold core device 400 is detachably mounted on the lower mold base 100 through a mounting mechanism 500;
the upper die device 300 is matched with the die core device 400, the upper die device 300 is located right above the die core device 400, the height of the upper die device 300 relative to the die core device 400 is adjusted through the hydraulic telescopic cylinder 200, the hydraulic telescopic cylinder 200 is fixedly arranged on the lower die holder 100, and the upper die device 300 is arranged at the telescopic end of the hydraulic telescopic cylinder 200.
In particular, as shown in fig. 1 and fig. 4-6, in the preferred embodiment provided by the present invention, the mounting mechanism 500 includes a rotary drum 501 disposed on the lower die holder 100, and the position of the rotary drum 501 along the lower die holder 100 is adjusted by an adjusting mechanism 700; the inside of the rotary drum 501 is supported and slidably provided with a mounting sliding block 510 through a transverse spring 508, a mounting rod 509 is fixedly mounted on the rotary drum 501, and an inclined surface 511 is arranged at the end part of the mounting rod 509.
Further, in the embodiment of the present invention, the mounting slider 510 is further fixedly provided with a supporting sleeve rod 507, the supporting sleeve rod 507 is axially slidably sleeved on the square rod 504, the other end of the square rod 504 is fixedly connected with the operation disc 505, the operation disc 505 is rotatably disposed on the lower die holder 100, and the operation disc 505 after adjusting the rotation angle is fixed by a limiting screw 506.
Further, in the embodiment of the present invention, the lower die holder 100 is further provided with a support 503 in a sliding manner, the drum 501 is rotatably connected with the support 503, and the support 503 is connected with the adjusting mechanism 700, and since the drum 501 is rotatably connected with the support 503, the position of the support 503 on the lower die holder 100 is adjusted by the adjusting mechanism 700, that is, the position of the drum 501 is adjusted; thus, in embodiments of the present invention, the position of the mounting bar 509 may be adjusted by adjusting the position of the drum 501.
Further, in the embodiment of the present invention, the mold core device 400 includes a mold core seat 401, and a support channel 404 that is matched with the mounting rod 509 is formed on the mold core seat 401.
Further, in the embodiment of the present invention, the lower die holder 100 is provided with a lower die holder 100 that is matched with the die core device 400, and the die core device 400 disposed in the mounting cavity 101 is fixed by the mounting mechanism 500 when the die core device 400 is mounted in the lower die holder 100.
In the specific use of the injection mold provided by the embodiment of the invention, the specific process of fixing the mold core device 400 placed in the mounting cavity 101 by using the mounting mechanism 500 is as follows, firstly, the position of the rotary drum 501 on the lower mold base 100 is adjusted by using the adjusting mechanism 700, so that the inclined surface 511 is positioned at the joint of the mold core device 400 and the lower mold base 100, at this time, because the direction of the inclined surface 511 on the mounting rod 509 is upward, in the process of moving the mold core device 400 downwards along the mounting cavity 101, the edge of the mold core device 400 abuts against the inclined surface 511, the mounting rod 509 can slide relatively to the edge of the mold core device 400, at this time, the mounting rod 509 can retract into the lower mold base 100, further, when the mounting rod 509 aligns to the support channel 404, under the action of the elastic supporting restoring force of the transverse spring 508, the mounting rod 509 abuts against the support channel 404, at this time, the fixing of the mold core device 400 is completed, then, the position of the rotary drum 501 is adjusted by further using the adjusting mechanism 700, so that the mounting rod 509 extends completely into the support channel 404, even if the inclined surface 511 is completely positioned in the support channel 404, the support channel 400, the edge of the mold core device 400 moves downwards, the mounting device 400 is fixed in the support channel, the mold core device 101 is not further, and the mold core device is further fixed in the cavity 101, and the expansion and the mold core device is not further moved in the cavity is further, and the expansion device is further, and the mold device is not fixed in the cavity is moved, and the mold is further, and the mold is moved, and the mold is further, and can is moved, and the mold, and can is moved, and is further, and is in the mold.
With continued reference to fig. 1, 2 and 5, in the embodiment of the present invention, the adjusting mechanism 700 includes a counter-rotating dual-shaft servo motor 701 mounted on the lower die holder 100, a screw rod 702 is mounted on an output shaft of the counter-rotating dual-shaft servo motor 701, a moving seat 703 is mounted on the screw rod 702 in a threaded connection manner, and the moving seat 703 is fixedly connected with the support 503 through a support connecting rod 704.
Further, in the preferred embodiment provided by the present invention, the rotation angle of the drum 501 on the lower die holder 100 is adjusted by the supporting mechanism 600; the supporting mechanism 600 includes a lower supporting plate 602 and an upper supporting plate 603 that are slidably disposed in the mounting cavity 101, and the lower supporting plate 602 and the upper supporting plate 603 are connected through a buffer spring 601.
Further, in the embodiment of the present invention, the toothed ring 502 is coaxially and fixedly sleeved on the outer ring of the rotary drum 501, the supporting mechanism 600 further includes a rack 604 slidably disposed on the lower die holder 100, the rack 604 is meshed with the toothed ring 502, and the rack 604 is fixedly connected with the lower support plate 602 through a fixing link 605.
In the embodiment of the supporting mechanism 600 provided by the embodiment of the present invention, when the mold core device 400 extends into the mounting cavity 101 and is fixed by the mounting mechanism 500, the buffer spring 601 is in a compressed state, at this time, the inclined surface 511 extends completely into the supporting channel 404, and the elastic restoring force of the buffer spring 601 in the compressed state does not jack up the mold core device 400 from the mounting cavity 101.
With continued reference to fig. 1, 3 and 5, in the embodiment of the present invention, the mold core device 400 further has a molding cavity 403, the mold core device 400 is further provided with a demolding module 800, the mold core device 400 is provided with a demolding channel 405, the demolding module 800 includes a limit support block 803 slidably disposed in the demolding channel 405 and supported by a vertical spring 804, a fulcrum 802 is fixedly disposed on the limit support block 803 in a penetrating manner, and a demolding block 805 corresponding to the molding cavity 403 is fixedly mounted at the top end of the fulcrum 802; the bottom end of the fulcrum 802 is rotatably provided with a roller 801, and the roller 801 extends into the support channel 404.
It can be appreciated that in the specific use of the injection mold provided in the embodiment of the present invention, the adjusting mechanism 700 is used to continuously adjust the relative position of the rotary drum 501 on the lower mold base 100, so that the mounting rod 509 can continuously move in the supporting channel 404 until the inclined surface 511 abuts against the roller 801, at this time, the limiting supporting block 803 can be lifted upwards in the demolding channel 405, so that the demolding block 805 can be moved upwards in the molding cavity 403, so as to jack up the injection molding piece in the molding cavity 403, and achieve the effect of quick detachment of the injection molding piece.
In the embodiment of the present invention, the rotation of the operation disc 505 is manually performed to rotate the drum 501, so as to make the inclined surface 511 downward, at this time, due to the engagement of the rack 604 and the toothed ring 502, the rotating drum 501 can drive the lower support plate 602 to move upward for a distance, and at the same time, the upward-moving rack 604 is engaged with the toothed ring 502 to drive the drum 501 to rotate, so as to adjust the orientation of the inclined surface 511, so that when the inclined surface 511 is adjusted downward, the inclined surface 511 is located at the junction between the mold core device 400 and the lower mold base 100 by using the adjusting mechanism 700, at this time, under the elastic supporting effect of the buffer spring 601, the mold core device 400 is pushed to move upward, and the mounting rod 509 is separated from the supporting channel 404, and at the same time, the upward-moving lower support plate 602 makes the buffer spring 601 in a further compressed state, which is helpful for realizing rapid separation of the mold core device 400 from the lower mold base 100.
With continued reference to fig. 1-2, in the embodiment of the present invention, the upper die apparatus 300 includes an upper die holder 301 fixedly installed at the telescopic end of the hydraulic telescopic cylinder 200, a feeding cavity 302 is provided in the upper die holder 301, the bottom end of the feeding cavity 302 is respectively communicated with a first channel 304 and a second channel 305, a first check valve 306 is provided on the first channel 304, a second check valve 307 is provided on the second channel 305, a piston block 309 is further provided in the feeding cavity 302, and the height of the piston block 309 in the feeding cavity 302 is adjusted by a hydraulic telescopic rod 308; it will be appreciated that during casting by injection molding, the height of piston block 309 within feed cavity 302 is adjusted by the telescoping function of hydraulic telescoping rod 308 to allow casting liquid to enter feed cavity 302 through second passageway 305 and further allow casting liquid within feed cavity 302 to drain through first passageway 304.
Wherein the second one-way valve 307 is used for allowing casting liquid to enter the supply cavity 302 through the second channel 305 in one way; the first check valve 306 is used to allow casting solution in the supply chamber 302 to drain through the first channel 304 in a single direction.
Further, in the embodiment of the present invention, the upper die device 300 further includes a molding block 303 mated with the molding cavity 403, and the molding block 303 is fixedly mounted on the upper die device 300 by a screw.
Further, in the embodiment of the present invention, the mold core device 400 further includes a cooling coil 402 disposed on the mold core seat 401, and a flowing cooling liquid is disposed in the cooling coil 402, so as to achieve rapid cooling of the injection molding member in the process of closing the mold, so as to improve the molding effect.
The invention also provides a backlight rubber frame injection molding method, which comprises the following steps: the rotary drum 501 is adjusted by the adjusting mechanism 700 to be positioned on the lower die holder 100, so that the inclined surface 511 is positioned at the joint of the die core device 400 and the lower die holder 100, the edge of the die core device 400 is propped against the inclined surface 511 in the process of moving the die core device 400 downwards along the mounting cavity 101, the mounting rod 509 can slide relatively relative to the edge of the die core device 400, the mounting rod 509 can retract into the lower die holder 100, when the mounting rod 509 is aligned to the supporting channel 404, under the action of the elastic supporting restoring force of the transverse spring 508, the mounting rod 509 is propped against the supporting channel 404, so that the die core device 400 is kept fixed in the mounting cavity 101, and the die clamping between the upper die device 300 and the die core device 400 is further realized by the telescopic function of the hydraulic telescopic cylinder 200.
The above embodiments are merely illustrative of a preferred embodiment, but are not limited thereto. In practicing the present invention, appropriate substitutions and/or modifications may be made according to the needs of the user.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be readily apparent to those skilled in the art.
Although embodiments of the invention have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (4)
1. The utility model provides a frame injection mold is glued to backlight, its characterized in that, injection mold includes:
the mold core device is detachably mounted on the lower mold base through a mounting mechanism;
the upper die device is positioned right above the die core device, the height of the upper die device relative to the die core device is adjusted through a hydraulic telescopic cylinder, the hydraulic telescopic cylinder is fixedly arranged on a lower die holder, and the upper die device is arranged at the telescopic end of the hydraulic telescopic cylinder;
the mounting mechanism comprises a rotary drum arranged on the lower die holder, and the position of the rotary drum along the lower die holder is adjusted by an adjusting mechanism; the rotary drum is internally provided with a mounting sliding block in a sliding manner through a transverse spring support, a mounting rod is fixedly mounted on the rotary drum, and the end part of the mounting rod is provided with an inclined surface;
the mounting sliding block is fixedly provided with a supporting sleeve rod, the supporting sleeve rod is axially sleeved on the square rod in a sliding manner, the other end of the square rod is fixedly connected with the operating disc, the operating disc is rotatably arranged on the lower die holder, and the operating disc with the rotation angle adjusted is fixed through a limit screw;
the lower die holder is also supported and slidably provided with a support, the rotary drum is rotationally connected with the support, and the support is connected with the adjusting mechanism;
the mold core device comprises a mold core seat, and a supporting channel matched with the mounting rod is formed in the mold core seat; the lower die holder is provided with a lower die holder matched with the die core device, and when the die core device is arranged in the lower die holder, the die core device arranged in the installation cavity is fixed through the installation mechanism;
the adjusting mechanism comprises a forward and reverse rotation double-shaft servo motor arranged on the lower die holder, a screw rod is arranged on an output shaft of the forward and reverse rotation double-shaft servo motor, a movable seat is arranged on the screw rod in a threaded connection mode, and the movable seat is fixedly connected with the support through a support connecting rod;
the rotating angle of the rotary drum on the lower die holder is adjusted through a supporting mechanism; the supporting mechanism comprises a lower supporting plate and an upper supporting plate which are arranged in the mounting cavity in a vertical sliding mode, and the lower supporting plate is in supporting connection with the upper supporting plate through a buffer spring;
the outer ring of the rotary drum is coaxially and fixedly sleeved with a toothed ring, the supporting mechanism further comprises a rack which is arranged on the lower die holder in a sliding mode up and down, the rack is meshed with the toothed ring, and the rack is fixedly connected with the lower support plate through a fixed connecting rod.
2. The backlight frame injection mold according to claim 1, wherein the mold core device is further provided with a molding cavity, the mold core device is further provided with a demolding piece, the mold core device is provided with a demolding channel, the demolding piece comprises a limiting support block which is slidably arranged in the demolding channel through a vertical spring support, a support shaft is fixedly arranged on the limiting support block in a penetrating manner, and the top end of the support shaft is fixedly provided with a demolding block corresponding to the molding cavity; the bottom of the fulcrum is rotatably provided with a roller, and the roller stretches into the supporting channel.
3. The backlight frame injection mold according to claim 2, wherein the upper mold device comprises an upper mold seat fixedly installed at the telescopic end of the hydraulic telescopic cylinder, a supply cavity is formed in the upper mold seat, the bottom end of the supply cavity is respectively communicated with the first channel and the second channel, a first one-way valve is arranged on the first channel, a second one-way valve is arranged on the second channel, a piston block is further arranged in the supply cavity, and the height of the piston block in the supply cavity is adjusted through a hydraulic telescopic rod; the second one-way valve is used for enabling casting liquid to enter the supply cavity through the second channel in one way; the first one-way valve is used for enabling casting liquid in the supply cavity to be discharged through the first channel in one way;
the upper die device further comprises a molding block matched with the molding cavity.
4. A method for injecting and molding a backlight frame based on the injection mold as claimed in any one of claims 1 to 3, wherein the injection method comprises the following steps: utilize adjustment mechanism adjustment rotary drum position on the die holder for the inclined plane is located the junction of mold core device and die holder, and at the in-process that mold core device moved down along the installation intracavity, the edge of mold core device supports on the inclined plane, can make the installation pole produce relative slip for the edge of mold core device, and the installation pole of this moment can be retracted in the die holder, when the installation pole aims at the support passageway, under the elastic support restoring force effect of transverse spring, makes the installation pole support in the support passageway, makes mold core device keep fixed in the installation intracavity, utilizes the flexible function of hydraulic telescoping cylinder, makes between upper mold device and the mold core device the compound die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210221366.6A CN114670398B (en) | 2022-03-07 | 2022-03-07 | Backlight source rubber frame injection mold and injection molding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210221366.6A CN114670398B (en) | 2022-03-07 | 2022-03-07 | Backlight source rubber frame injection mold and injection molding method |
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| CN114670398B true CN114670398B (en) | 2023-08-08 |
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Also Published As
| Publication number | Publication date |
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| CN114670398A (en) | 2022-06-28 |
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