CN107379417B - light guide plate compression forming die and light guide plate compression forming method - Google Patents
light guide plate compression forming die and light guide plate compression forming method Download PDFInfo
- Publication number
- CN107379417B CN107379417B CN201710666303.0A CN201710666303A CN107379417B CN 107379417 B CN107379417 B CN 107379417B CN 201710666303 A CN201710666303 A CN 201710666303A CN 107379417 B CN107379417 B CN 107379417B
- Authority
- CN
- China
- Prior art keywords
- channel
- water channel
- longitudinal
- transverse
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B29C45/2602—Mould construction elements
-
- 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
-
- 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
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
the invention discloses a compression molding die and a compression molding method for a light guide plate, wherein the die comprises: the fixed die comprises a movable die side flat plate, a movable die side slotted plate, a fixed die side slotted plate and a fixed die side flat plate which are arranged in sequence. According to the compression molding die for the light guide plate, the fixed die plate in the traditional die is divided into the fixed die side slotting plate and the fixed die side flat plate, and the movable die plate in the traditional die is divided into the movable die side slotting plate and the movable die side flat plate; the slotted part and the flat plate part can be respectively processed, the processing difficulty is reduced, and the verticality of the bottom edges of the processed first accommodating groove and the processed second accommodating groove is effectively ensured.
Description
Technical Field
The invention relates to the technical field of light guide plate forming dies, in particular to a light guide plate compression forming die and a light guide plate compression forming method.
Background
The light guide plate is made of optical acrylic/PC board, and then high-tech material with high reflectivity and no light absorption is used to print light guide points on the bottom surface of the optical acrylic board by using UV screen printing technology. The optical-grade acrylic sheet is used for absorbing the light emitted from the lamp to stay on the surface of the optical-grade acrylic sheet, when the light irradiates each light guide point, the reflected light can be diffused towards each angle, and then the reflected light is damaged and is emitted from the front surface of the light guide plate. The light guide plate can uniformly emit light through various light guide points with different densities and sizes. The reflecting sheet is used for reflecting the light with the bottom surface exposed back to the light guide plate so as to improve the use efficiency of the light.
Among the prior art, light guide plate forming die is usually including the fixed die plate, movable mould board, compression mechanism spring mounting panel and the ejection mechanism mounting panel that set gradually, because fixed die plate and movable mould board need install the mold core, so the middle part is provided with corresponding mold core and holds the chamber, the mold core holds the chamber and is formed by CNC direct machining usually, and this kind of direct machining's mode can form the hypotenuse at the base, and the processing can not go out the right angle limit that wants, and the processing degree of difficulty is big and the effect is poor.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a compression molding mold for a light guide plate and a compression molding method for a light guide plate, which aims to solve the problems of the prior art.
the technical scheme adopted by the invention for solving the technical problem is as follows:
A compression molding die for a light guide plate comprises a compression mechanism spring mounting plate and an ejection mechanism mounting plate; wherein, still include: the compression mechanism comprises a compression mechanism spring mounting plate, a movable die side flat plate, a movable die side slotted plate, a fixed die side slotted plate and a fixed die side flat plate which are sequentially arranged, wherein the movable die side flat plate is connected to one side of the compression mechanism spring mounting plate, which is far away from the ejection mechanism mounting plate; a first accommodating groove for accommodating a movable mold core is formed in the middle of the movable mold side slotted plate and is fixed on one side, away from the compression mechanism spring mounting plate, of the movable mold side flat plate; the fixed die side slotted plate is provided with a second accommodating groove for accommodating a fixed die core and is positioned on one side of the movable die side slotted plate, which is far away from the movable die side flat plate; the fixed die side flat plate is fixed on one surface of the fixed die side slotted plate, which is far away from the movable die side slotted plate;
The first accepting groove is held with the movable mould core, the second accepting groove is held with the fixed mould core, the fixed mould core includes: the temperature control water path is arranged on the first surface of the mold core body, the distance between the temperature control water path and the first surface of the mold core body is larger than the distance between the temperature control water path and the second surface of the mold core body, the first surface of the mold core body faces the movable mold core, and the second surface deviates from the movable mold core;
The cover half side is provided with the purt mouth water route that adjusts the temperature in the frid, the purt mouth water route that adjusts the temperature includes: the squirt mouth is surrounded around the water course, by squirt mouth longitudinal branch road, squirt mouth horizontal runner and squirt mouth vertical runner to form;
Be provided with the thimble water route that adjusts the temperature in the movable mould side slotted plate, the thimble water route that adjusts the temperature includes: the thimble water inlet channel, the first horizontal water channel of thimble, the first vertical water channel of thimble, thimble that set gradually and communicate encircle water channel, the vertical water channel of thimble second, the horizontal water channel of thimble second and thimble water outlet channel, the thimble encircles the water channel and encircles around the thimble, by the vertical subchannel of thimble, the horizontal runner of extending of thimble and the vertical runner of extending of thimble constitute.
Light guide plate compression forming die, wherein, accuse temperature water route intercommunication has into water course and water course, water course and water course all perpendicular to accuse temperature water route, accuse temperature water route includes: the first transverse water channel, the first longitudinal water channel, the second transverse water channel, the second longitudinal water channel, the third transverse water channel, the third longitudinal water channel and the fourth transverse water channel are arranged and communicated in sequence; and the second transverse water channel, the second longitudinal water channel and the third transverse water channel are positioned right below the light guide plate forming cavity.
The light guide plate compression molding die is characterized in that the first longitudinal water channel is provided with a first extending water channel in an extending mode, and the starting point of the first extending water channel is the joint of the first longitudinal water channel and the first transverse water channel; the second longitudinal water channel is provided with a second extending water channel in an extending mode, and the starting point of the second extending water channel is the connecting position of the second longitudinal water channel and the second transverse water channel; and a third extending water channel is arranged in the third longitudinal water channel in an extending mode, and the starting point of the third extending water channel is the joint of the third longitudinal water channel and the fourth transverse water channel.
the light guide plate compression molding die is characterized in that the first longitudinal water channel and the first extending water channel are in mirror symmetry with the third longitudinal water channel and the third extending water channel respectively.
The light guide plate compression molding die is characterized in that the first extending water channel, the second extending water channel and the third extending water channel all penetrate through the die core body, and sealing plugs are fixed in penetrating openings penetrating through the die core body.
The light guide plate compression molding die is characterized in that the squirt nozzle water inlet channel is vertical to the squirt nozzle first transverse water channel, and the squirt nozzle water outlet channel is vertical to the squirt nozzle second transverse water channel; the first transverse water channel of the squirt nozzle, the first longitudinal water channel of the squirt nozzle, the surrounding water channel of the squirt nozzle, the second longitudinal water channel of the squirt nozzle and the second transverse water channel of the squirt nozzle are positioned on the same horizontal line.
The light guide plate compression molding die is characterized in that the sprue bushing longitudinal branch channel and the sprue bushing first longitudinal water channel are coaxially arranged, the first end of the sprue bushing longitudinal branch channel is connected with the sprue bushing first longitudinal water channel and the sprue bushing transverse branch channel, and the second end of the sprue bushing longitudinal branch channel is vertically connected with the sprue bushing transverse extending channel;
The first end of the transverse branch of the pump nozzle is vertically connected with the junction of the longitudinal branch of the pump nozzle and the first transverse branch of the pump nozzle; the second end is vertically connected with the sprue extending channel longitudinally.
The light guide plate compression molding die is characterized in that the sprue bushing longitudinal extending channel and the sprue bushing second longitudinal water channel are coaxially arranged, the first end of the sprue bushing longitudinal extending channel is vertically connected with the sprue bushing transverse branch channel, and the second end of the sprue bushing longitudinal extending channel is vertically connected with the sprue bushing second longitudinal water channel and the sprue bushing transverse extending channel;
The first end of the transverse runner of the squirt nozzle is vertically connected with the longitudinal branch of the squirt nozzle, and the second end of the transverse runner of the squirt nozzle is vertically connected with the intersection of the second longitudinal water channel of the squirt nozzle and the longitudinal runner of the squirt nozzle.
A compression molding method of a light guide plate implemented via the compression molding mold of a light guide plate as described above, comprising the steps of:
Die assembly: the movable die side slotted plate and the movable die side flat plate move, the distance between the movable die side slotted plate and the fixed die side slotted plate is adjusted, and a reserved space is arranged between the adjusted movable die core and the fixed die core;
vacuumizing: the vacuum machine starts the electromagnetic valve, and air in the light guide plate forming cavity is pumped out through the air passage in the light guide plate compression forming mold, so that the light guide plate forming cavity is in a vacuum state;
injection molding: injecting glue into the light guide plate forming cavity and the reserved space by the injection molding machine through the squirt nozzle until the glue in the light guide plate forming cavity and the reserved space is enough to form the light guide plate;
Compression: the movable die side grooved plate and the movable die side flat plate are compressed towards the fixed die side grooved plate until the movable die side grooved plate is attached to the fixed die side grooved plate, and the light guide plate molding cavity is filled with the colloid;
And (3) ejecting: the movable mould side slotted plate and the movable mould side flat plate move away from the fixed mould side slotted plate until the movable mould side slotted plate and the fixed mould side slotted plate reset, the thimble moves towards the fixed mould side slotted plate, and the molded light guide plate is ejected out.
A compression molding die for a light guide plate comprises a compression mechanism spring mounting plate and an ejection mechanism mounting plate; wherein, still include: the compression mechanism comprises a compression mechanism spring mounting plate, a movable die side flat plate, a movable die side slotted plate, a fixed die side slotted plate and a fixed die side flat plate which are sequentially arranged, wherein the movable die side flat plate is connected to one side of the compression mechanism spring mounting plate, which is far away from the ejection mechanism mounting plate; a first accommodating groove for accommodating a movable mold core is formed in the middle of the movable mold side slotted plate and is fixed on one side, away from the compression mechanism spring mounting plate, of the movable mold side flat plate; the fixed die side slotted plate is provided with a second accommodating groove for accommodating a fixed die core and is positioned on one side of the movable die side slotted plate, which is far away from the movable die side flat plate; the fixed die side flat plate is fixed on one side, deviating from the moving die side slotted plate, of the fixed die side slotted plate.
Compared with the prior art, the compression molding die for the light guide plate, provided by the invention, has the advantages that the fixed die plate in the traditional die is divided into the fixed die side slotting plate and the fixed die side flat plate, and the movable die plate in the traditional die is divided into the movable die side slotting plate and the movable die side flat plate; the slotted part and the flat plate part can be respectively processed, the processing difficulty is reduced, and the verticality of the bottom edges of the processed first accommodating groove and the processed second accommodating groove is effectively ensured.
Drawings
Fig. 1 is a schematic structural diagram of a compression molding mold for a light guide plate according to a preferred embodiment of the present invention.
fig. 2 is a schematic structural view of a thimble temperature adjusting water path in a preferred embodiment of the light guide plate compression molding mold provided in the present invention.
Fig. 3 is a schematic structural view of a squirt nozzle temperature-adjusting water channel in a preferred embodiment of the light guide plate compression molding mold of the present invention.
Fig. 4 is a schematic structural view of a temperature control water path in a preferred embodiment of the light guide plate compression molding mold according to the present invention.
Detailed Description
The present invention provides a compression molding mold for a light guide plate and a compression molding method for a light guide plate, which are described in further detail below with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the present invention provides a compression molding mold for a light guide plate, comprising: the ejection mechanism mounting plate 4106, the compression mechanism spring mounting plate 4105, the movable mold side flat plate 4104, the movable mold side slotted plate 4103, the fixed mold side slotted plate 4102 and the fixed mold side flat plate 4101 are arranged in sequence, and the movable mold side flat plate 4104 is connected to one side of the compression mechanism spring mounting plate 4105, which is far away from the ejection mechanism mounting plate 4106; a first accommodating groove 4111 for accommodating a movable mold core is formed in the middle of the movable mold side grooved plate 4103 and is fixed to one side of the movable mold side flat plate 4104, which is far away from the compression mechanism spring mounting plate 4105; the fixed die side slotted plate 4102 is provided with a second accommodating groove 4112 for accommodating a fixed die core, and is positioned on one side of the movable die side slotted plate 4103, which is far away from the movable die side flat plate 4104; the fixed mold side flat plate 4101 is fixed on the fixed mold side grooved plate 4102 on the side deviating from the movable mold side grooved plate 4103; the first containing groove contains a movable mold core, and the second containing groove contains a fixed mold core.
as shown in fig. 2, a thimble temperature adjusting water path is disposed in the movable mold side slot plate, and in a preferred embodiment, the thimble temperature adjusting water path includes: the thimble inlet water channel 2101, the thimble surround the water channel and the thimble outlet water channel 2102 that set up in proper order. The most important of them is that the thimble surrounds the water channel, and preferably it is composed of a thimble longitudinal branch 2403, a thimble transverse branch 2401, a thimble transverse extending flow channel 2404 and a thimble longitudinal extending flow channel 2402.
The thimble longitudinal branch 2403 and the thimble transverse extending flow 2404 form one of two branch flow ways of the thimble surrounding water channel, and the thimble transverse branch 2401 and the thimble longitudinal extending flow 2402 form the other of the two branch flow ways of the thimble surrounding water channel. It will be readily appreciated that the thimble surrounds the channel in a square configuration, and that the temperature-controlled water flowing from the thimble inlet channel 2101 is split around the channel and then joins at the thimble outlet channel 2102.
In a further preferred embodiment of the present invention, the thimble temperature adjusting water path includes: the thimble structure comprises a thimble water inlet channel 2101, a thimble first transverse channel 2201, a thimble first longitudinal channel 2301, a thimble surrounding channel, a thimble second longitudinal channel 2302, a thimble second transverse channel 2202 and a thimble water outlet channel 2102 which are sequentially arranged and communicated, wherein the thimble surrounding channel surrounds the periphery of the thimble and consists of a thimble longitudinal branch channel 2403, a thimble transverse branch channel 2401, a thimble transverse extending channel 2404 and a thimble longitudinal extending channel 2402.
That is to say, besides the thimble water inlet channel 2101 and the thimble water outlet channel 2102 surrounded by the water channels, the thimble temperature adjusting water channel is further provided with a thimble first transverse water channel 2201, a thimble first longitudinal water channel 2301, a thimble second longitudinal water channel 2302 and a thimble second transverse water channel 2202, and the arrangement of the water channels is to reduce the temperature difference at each position of the mold and prolong the service life of the mold.
Under the condition of arranging the upper water channel, the light guide plate forming compression mould is externally connected with a water source (the water source is also a temperature control device and controls the temperature of the periphery of the thimble by controlling the temperature of water flow), the temperature-controlled water delivered from the water source flows through the thimble inlet water passage 2101, the thimble first transverse water passage 2201 and the thimble first longitudinal water passage 2301 in sequence, the flow division is started at the outlet of the first thimble longitudinal water channel 2301, the first water flow successively flows through the thimble longitudinal branch channel 2403 and the thimble transverse extending channel 2404, then flows into the thimble second longitudinal water channel 2302, the second flow passes through the thimble transverse branch 2401 and the thimble longitudinal extending flow channel 2402, and then flows into spike second longitudinal waterway 2302, i.e., the two water streams merge at the inlet of the spike second longitudinal flow passage, then flows from the second longitudinal channel to the second lateral channel 2202, and finally flows out of the outlet channel 2102. The flowing temperature control water can flow to a water source for recycling and can also be directly discharged.
in a further preferred embodiment of the present invention, pin inlet water channel 2101 is perpendicular to pin first lateral water channel 2201 and pin outlet water channel 2102 is perpendicular to pin second lateral water channel 2202. The arrangement of the thimble inlet water channel 2101 and the thimble outlet water channel 2102 is convenient for the compression mold for molding the light guide plate to connect with a water source. And the thimble first transverse water channel 2201, the thimble first longitudinal water channel 2301, the thimble surrounding water channel, the thimble second longitudinal water channel 2302 and the thimble second transverse water channel 2202 are on the same horizontal line. Several water channels are set on the same horizontal line to speed up water flow and raise temperature controlling efficiency.
The ejector pin longitudinal branch 2403, the ejector pin transverse branch 2401, the ejector pin transverse extending flow channel 2404 and the ejector pin longitudinal extending flow channel 2402 are surrounded to form a first accommodating cavity, and the ejector pin vertically penetrates through the accommodating cavity. That is, the thimble passes through the middle part of water course around the thimble.
The ejector pin longitudinal branch 2403 is coaxially arranged with the ejector pin first longitudinal water channel 2301, a first end of the ejector pin longitudinal branch is connected with the ejector pin first longitudinal water channel 2301 and the ejector pin transverse branch 2401, and a second end of the ejector pin transverse branch is vertically connected with the ejector pin transverse extending flow channel 2404; the first end of the thimble transverse branch 2401 is vertically connected with the junction of the thimble longitudinal branch 2403 and the thimble first transverse branch; the second end is vertically connected with the thimble longitudinally extending flow passage 2402.
The ejector pin longitudinal extending flow channel 2402 and the ejector pin second longitudinal water channel 2302 are coaxially arranged, the first end of the ejector pin longitudinal extending flow channel is vertically connected with the ejector pin transverse branch channel 2401, and the second end of the ejector pin longitudinal extending flow channel is vertically connected with the ejector pin second longitudinal water channel 2302 and the ejector pin transverse extending flow channel 2404; the first end of the thimble transverse extending flow channel 2404 is vertically connected to the thimble longitudinal branch channel 2403, and the second end is vertically connected to the intersection of the thimble second longitudinal water channel 2302 and the thimble longitudinal extending flow channel 2402.
The fixed die side slotted plate is internally provided with a squirt nozzle temperature-adjusting water channel, and a squirt nozzle water inlet channel 1101, a squirt nozzle first transverse channel 1201, a squirt nozzle first longitudinal channel 1301, a squirt nozzle surrounding channel, a squirt nozzle second longitudinal channel 1302, a squirt nozzle second transverse channel 1202 and a squirt nozzle water outlet channel 1102 which are sequentially arranged and communicated. The squirt nozzle surrounds the water channel and surrounds the squirt nozzle, and is composed of a squirt nozzle longitudinal branch channel 1403, a squirt nozzle transverse branch channel 1401, a squirt nozzle transverse extending channel 1404 and a squirt nozzle transverse extending channel 1402.
The temperature of the water source is controlled by controlling the temperature of the water flow, and the temperature-controlled water delivered from the water source flows through the water inlet channel 1101, the first transverse channel 1201 and the first longitudinal channel 1301 of the pump nozzle in sequence, and then is split at the outlet of the first longitudinal channel 1301 of the pump nozzle, the first flow flows through the longitudinal branch channel 1403 and the transverse extension channel 1404 of the pump nozzle in sequence, and then flows into the second longitudinal channel 1302 of the pump nozzle, the second flow flows through the transverse branch channel 1401 of the pump nozzle and the transverse extension channel 1402 of the pump nozzle in sequence, and then flows into the second longitudinal channel 1302 of the pump nozzle, that is, the two flows are converged at the inlet of the second longitudinal channel of the pump nozzle, and then flows to the second transverse channel 1202 of the pump nozzle through the second longitudinal channel of the pump nozzle, and finally flows out of the water outlet channel 1102 of the pump nozzle. The flowing temperature control water can flow to a water source for recycling and can also be directly discharged.
In a further preferred embodiment of the invention, the squirt inlet channel 1101 is perpendicular to the squirt first transverse channel 1201, and the squirt outlet channel 1102 is perpendicular to the squirt second transverse channel 1202. The pump nozzle water inlet channel 1101 and the pump nozzle water outlet channel 1102 are arranged in this way, so that the compression mold for forming the light guide plate is conveniently connected with a water source. The sprue first transverse channel 1201, the sprue first longitudinal channel 1301, the sprue surrounding channel, the sprue second longitudinal channel 1302, and the sprue second transverse channel 1202 are on the same horizontal line. Several water channels are set on the same horizontal line to speed up water flow and raise temperature controlling efficiency.
The sprue bushing longitudinal branch 1403, the sprue bushing transverse branch 1401, the sprue bushing transverse extending channel 1404 and the sprue bushing transverse extending channel 1402 are surrounded to form a first accommodating chamber, and the sprue bushing vertically penetrates through the accommodating chamber. That is, the squirt nozzle extends through the center of the waterway around the squirt nozzle.
The sprue channel longitudinal branch 1403 and the sprue channel first longitudinal water channel 1301 are coaxially arranged, the first ends of the sprue channel longitudinal branch 1403 and the sprue channel transverse branch 1401 are connected to the sprue channel first longitudinal water channel 1301 and the second ends of the sprue channel transverse branch 1404 are vertically connected; a first end of the sprue bushing transverse branch 1401 is vertically connected to the junction of the sprue bushing longitudinal branch 1403 and the sprue bushing first transverse branch; the second end is vertically connected to the squirt nozzle transverse flow channel 1402.
The sprue transverse extension channel 1402 and the sprue second longitudinal channel 1302 are coaxially arranged, a first end of the sprue transverse extension channel is vertically connected to the sprue transverse branch channel 1401, and a second end of the sprue transverse extension channel 1404 is vertically connected to the sprue second longitudinal channel 1302 and the sprue transverse extension channel 1404; the transverse sprue 1404 has a first end vertically connected to the longitudinal sprue 1403 and a second end vertically connected to the intersection of the second longitudinal sprue 1302 and the transverse sprue 1402.
The fixed mold core comprises: the mold core body, set up in the light guide plate one-tenth die cavity of the first face of mold core body to and set up the accuse temperature water route in the mold core body, the interval of accuse temperature water route and the first face of mold core body is greater than accuse temperature water route and the interval of mold core body second face, the first face of mold core body is towards moving the mold core, and the second face deviates from moving the mold core.
So will accuse the temperature water route and deviate from light guide plate one-tenth die cavity to set up, be can be gradually to diffusion temperature all around through accuse temperature water route in order to guarantee accuse temperature water, make whole light guide plate one-tenth die cavity difference in temperature everywhere reduce as far as, and if be close to light guide plate one-tenth die cavity with it, because the high temperature influence in accuse temperature water route will lead to the light guide plate terminal surface after the shaping to have with the impression that accuse temperature water route is similar, cause the product unusable.
the temperature control waterway is communicated with a water inlet channel and a water outlet channel, and the water inlet channel and the water outlet channel are both vertical to the temperature control waterway. The water inlet channel and the water outlet channel are arranged in this way, so that the compression mould is convenient for connecting a water source for forming the light guide plate.
In specific implementation, the temperature control waterway comprises: the first transverse water channel 101, the first longitudinal water channel 201, the second transverse water channel 102, the second longitudinal water channel 202, the third transverse water channel 103, the third longitudinal water channel 203 and the fourth transverse water channel 104 are arranged and communicated in sequence; the second transverse water channel 102, the second longitudinal water channel 202 and the third transverse water channel 103 are located right below the light guide plate forming cavity. Preferably, all water channels in the temperature control water channel are in the same horizontal line, so that the water flow speed is accelerated, and the temperature control efficiency is improved.
in a further preferred embodiment of the present invention, the first longitudinal channel 201 is extended with a first extended channel 301, and the starting point of the first extended channel 301 is the connection point of the first longitudinal channel 201 and the first transverse channel 101. The first extending water channel 301 is arranged, so that temperature control water can control the temperature of a mold around the first extending water channel 301 through the first extending water channel 301, and therefore the temperature difference of all positions of the fixed mold core is reduced.
For the same reason as described above, the present invention further provides the second extension water passage 302 and the third extension water passage 303. The method specifically comprises the following steps: the second longitudinal water channel 202 is extended with a second extended water channel 302, and the starting point of the second extended water channel 302 is the connection point of the second longitudinal water channel 202 and the second transverse water channel 102. The third longitudinal water channel 203 is provided with a third extending water channel 303 in an extending manner, and the starting point of the third extending water channel 303 is the connection position of the third longitudinal water channel 203 and the fourth transverse water channel 104.
The first longitudinal channel 201 and the first elongated channel 301 are mirror images of the third longitudinal channel 203 and the third elongated channel 303, respectively. The two water channels are arranged in mirror symmetry so as to reduce the control difficulty and improve the control accuracy.
The first extending water channel 301, the second extending water channel 302 and the third extending water channel 303 all penetrate through the mold core body, and sealing plugs are fixed in penetrating openings penetrating through the mold core body. The sealing plug is arranged to reduce the processing difficulty (the processing difficulty of the through hole is lower than that of the deep groove, and the processing precision is higher than that of the deep groove), and to improve the cleaning sundries and reduce the maintenance difficulty.
The invention also provides a light guide plate forming compression mold, which particularly comprises the fixed mold core for the light guide plate forming compression mold.
Besides the mold, the invention also provides another light guide plate molding compression mold which comprises two fixed mold cores used for the light guide plate molding compression mold, wherein the two fixed mold cores share one gate, and one fixed mold core is overlapped with the other fixed mold core after rotating clockwise by 90 degrees along the axis of the gate.
it is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (7)
1. A compression molding die for a light guide plate comprises a compression mechanism spring mounting plate and an ejection mechanism mounting plate; it is characterized by also comprising: the compression mechanism comprises a compression mechanism spring mounting plate, a movable die side flat plate, a movable die side slotted plate, a fixed die side slotted plate and a fixed die side flat plate which are sequentially arranged, wherein the movable die side flat plate is connected to one side of the compression mechanism spring mounting plate, which is far away from the ejection mechanism mounting plate; a first accommodating groove for accommodating a movable mold core is formed in the middle of the movable mold side slotted plate and is fixed on one side, away from the compression mechanism spring mounting plate, of the movable mold side flat plate; the fixed die side slotted plate is provided with a second accommodating groove for accommodating a fixed die core and is positioned on one side of the movable die side slotted plate, which is far away from the movable die side flat plate; the fixed die side flat plate is fixed on one surface of the fixed die side slotted plate, which is far away from the movable die side slotted plate;
The first accepting groove is held with the movable mould core, the second accepting groove is held with the fixed mould core, the fixed mould core includes: the temperature control water path is arranged on the first surface of the mold core body, the distance between the temperature control water path and the first surface of the mold core body is larger than the distance between the temperature control water path and the second surface of the mold core body, the first surface of the mold core body faces the movable mold core, and the second surface deviates from the movable mold core;
the cover half side is provided with the purt mouth water route that adjusts the temperature in the frid, the purt mouth water route that adjusts the temperature includes: the squirt mouth is surrounded around the water course, by squirt mouth longitudinal branch road, squirt mouth horizontal runner and squirt mouth vertical runner to form;
Be provided with the thimble water route that adjusts the temperature in the movable mould side slotted plate, the thimble water route that adjusts the temperature includes: the thimble outlet water channel is formed by a thimble longitudinal branch channel, a thimble transverse extension channel and a thimble longitudinal extension channel;
The temperature control waterway is communicated with a water inlet channel and a water outlet channel, and the water inlet channel and the water outlet channel are both vertical to the temperature control waterway;
The accuse temperature water route includes: the first transverse water channel, the first longitudinal water channel, the second transverse water channel, the second longitudinal water channel, the third transverse water channel, the third longitudinal water channel and the fourth transverse water channel are arranged and communicated in sequence; the second transverse water channel, the second longitudinal water channel and the third transverse water channel are positioned right below the light guide plate forming cavity;
The first transverse water channel, the first longitudinal water channel, the second transverse water channel, the second longitudinal water channel, the third transverse water channel, the third longitudinal water channel and the fourth transverse water channel are all located on the same horizontal line.
2. The light guide plate compression molding mold according to claim 1, wherein the first longitudinal water channel is extended with a first extended water channel, and the starting point of the first extended water channel is the connection point of the first longitudinal water channel and the first transverse water channel; the second longitudinal water channel is provided with a second extending water channel in an extending mode, and the starting point of the second extending water channel is the connecting position of the second longitudinal water channel and the second transverse water channel; and a third extending water channel is arranged in the third longitudinal water channel in an extending mode, and the starting point of the third extending water channel is the joint of the third longitudinal water channel and the fourth transverse water channel.
3. The light guide plate compression molding mold as claimed in claim 2, wherein the first longitudinal channel and the first extended channel are mirror images of the third longitudinal channel and the third extended channel, respectively.
4. The light guide plate compression molding mold according to claim 2, wherein the first, second and third water passages extend through the mold core body, and sealing plugs are fixed in openings extending through the mold core body.
5. The light guide plate compression molding die of claim 1, wherein the sprue inlet channel is perpendicular to the sprue first transverse channel, and the sprue outlet channel is perpendicular to the sprue second transverse channel; the first transverse water channel of the squirt nozzle, the first longitudinal water channel of the squirt nozzle, the surrounding water channel of the squirt nozzle, the second longitudinal water channel of the squirt nozzle and the second transverse water channel of the squirt nozzle are positioned on the same horizontal line.
6. the light guide plate compression molding die of claim 5, wherein the sprue longitudinal branch is coaxial with the sprue first longitudinal water channel, a first end of the sprue longitudinal branch is connected to the sprue first longitudinal water channel and the sprue transverse branch, and a second end of the sprue transverse branch is vertically connected to the sprue transverse runner;
The first end of the transverse branch of the pump nozzle is vertically connected with the junction of the longitudinal branch of the pump nozzle and the first transverse branch of the pump nozzle; the second end is vertically connected with the sprue extending channel longitudinally.
7. The light guide plate compression molding die of claim 5, wherein the sprue longitudinally extending channel is coaxial with the sprue second longitudinally extending channel, and has a first end vertically connected to the sprue transverse branch channel and a second end vertically connected to the sprue second longitudinally extending channel and the sprue transverse extending channel;
The first end of the transverse runner of the squirt nozzle is vertically connected with the longitudinal branch of the squirt nozzle, and the second end of the transverse runner of the squirt nozzle is vertically connected with the intersection of the second longitudinal water channel of the squirt nozzle and the longitudinal runner of the squirt nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666303.0A CN107379417B (en) | 2017-08-07 | 2017-08-07 | light guide plate compression forming die and light guide plate compression forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666303.0A CN107379417B (en) | 2017-08-07 | 2017-08-07 | light guide plate compression forming die and light guide plate compression forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107379417A CN107379417A (en) | 2017-11-24 |
| CN107379417B true CN107379417B (en) | 2019-12-10 |
Family
ID=60343889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710666303.0A Active CN107379417B (en) | 2017-08-07 | 2017-08-07 | light guide plate compression forming die and light guide plate compression forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107379417B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109049771A (en) * | 2018-08-10 | 2018-12-21 | 深圳市南极光电子科技股份有限公司 | A kind of forming light guide plate method, forming light guide plate system and cutting tool |
| CN112848113A (en) * | 2021-01-07 | 2021-05-28 | 东莞市元立电子科技有限公司 | Compression mold for oil cylinder of light guide plate |
| CN114311517B (en) * | 2022-01-17 | 2023-07-21 | 环琪(太仓)塑胶工业有限公司 | Injection molding and reverse molding integrated device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357502A (en) * | 2007-08-02 | 2009-02-04 | 株式会社名机制作所 | Forming die and forming method of light guide plate |
| CN207059101U (en) * | 2017-08-07 | 2018-03-02 | 深圳市南极光电子科技有限公司 | Light guide plate compression mold |
-
2017
- 2017-08-07 CN CN201710666303.0A patent/CN107379417B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357502A (en) * | 2007-08-02 | 2009-02-04 | 株式会社名机制作所 | Forming die and forming method of light guide plate |
| CN207059101U (en) * | 2017-08-07 | 2018-03-02 | 深圳市南极光电子科技有限公司 | Light guide plate compression mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107379417A (en) | 2017-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107379417B (en) | light guide plate compression forming die and light guide plate compression forming method | |
| CN107498788B (en) | Light guide plate forming method based on compression forming | |
| CN110435072A (en) | A kind of rotary plastic crafts injection mold and its injection moulding process | |
| CN110948786B (en) | Liquid silica gel forming die | |
| KR20000047988A (en) | A resin-vehicle-lamp-molding apparatus | |
| CN200993678Y (en) | Light guide plate moulding mold device and light guide plate | |
| CN208305704U (en) | The fervent mould structure at the mouth of a river in a kind of mould | |
| CN208324064U (en) | A kind of eye glass frame injection mold | |
| CN107599294B (en) | Vacuum forming method, light guide plate and mold applied to light guide plate forming mould | |
| CN209079078U (en) | Valve core housing injection mold | |
| CN113787678B (en) | Injection mold of multichannel lens and molding method thereof | |
| CN215320165U (en) | Low-pressure glue injection machine using LD-PE material | |
| CN207059101U (en) | Light guide plate compression mold | |
| CN208392528U (en) | Frame injection mold | |
| CN218660215U (en) | Die for preparing diffusion plate applied to mini LED display module | |
| CN112848115B (en) | Double-cavity die of ultrathin medium-size and large-size light guide plate | |
| CN211054331U (en) | Integrative ejecting injection mold of drawing of patterns of convex hollow injection molding | |
| CN207059081U (en) | A kind of injection structure applied to light guide plate compression mold | |
| CN208914515U (en) | A kind of hot runner mould | |
| CN214324048U (en) | Mold insert fixing structure of light guide plate oil cylinder compression mold | |
| CN214324030U (en) | Mould benevolence location structure of light guide plate hydro-cylinder compression mould | |
| CN109049771A (en) | A kind of forming light guide plate method, forming light guide plate system and cutting tool | |
| CN212764555U (en) | Valve needle constant temperature type gating system | |
| CN210552697U (en) | Injection mold for lamp tube bracket | |
| CN209036916U (en) | A kind of injection mold is into plastic structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518104 Guangdong city of Shenzhen province Baoan District manhole street and a new North Wing Lusa Science Park 1 to 8, 16 to 23 (fourth to fifth 1-4 floor, eighth floor of Building 2, building sixteenth, building 2) Applicant after: Shenzhen Antarctic optoelectronic Polytron Technologies Inc Address before: 518104 Guangdong city of Shenzhen province Baoan District manhole street and a new North Wing Lusa Science Park 1 to 8, 16 to 23 (fourth to fifth 1-4 floor, eighth floor of Building 2, building sixteenth, building 2) Applicant before: Shenzhen Nanjiguang Electronic Technology Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |