CN101622118A - Injection molding die - Google Patents
Injection molding die Download PDFInfo
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- CN101622118A CN101622118A CN200880006163A CN200880006163A CN101622118A CN 101622118 A CN101622118 A CN 101622118A CN 200880006163 A CN200880006163 A CN 200880006163A CN 200880006163 A CN200880006163 A CN 200880006163A CN 101622118 A CN101622118 A CN 101622118A
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- intercommunicating pore
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Abstract
Provided is an injection molding die wherein a die is separated into two or more, a cavity for a frame is formed between the separated dies, and an auxiliary cavity is arranged in the cavity for the frame through a communicating hole. The communicating hole which communicates with the auxiliary cavity is arranged close to a point where a molten resin meets in the cavity or close to a gate or to a cavity for a fixed component or to the cavity for a thick frame.
Description
Technical field
The present invention relates to a kind of glass with framework, have in the glass of framework at this, framework and plate glass (plate glass) are shaped to one, especially, the present invention relates to a kind of being used for the one-body molded die for injection molding to plate glass of framework.
Background technology
In vehicle window, utilize resinous framework that plate glass is installed on the metal car body usually as vehicles such as train and automobiles.
In recent years, the extrusion molding or the injection moulding of the resin by having mobile state are moulded directly into resinous framework on the plate glass, and the glass with framework is used as for motor vehicle parts of assembling, has in the glass of framework at this, and framework and plate glass become a single-piece.
Under the situation of the glass that has framework by the injection moulding manufacturing, as shown in figure 19, plate glass 93 is maintained between patrix 91 and the counterdie 92, and forms framework cavity 94 at the circumference of plate glass 93.The resin of molten state is injected into this framework with in the cavity 94.After being injected into the resin solidification of framework with the molten state in the cavity 94, take patrix 91 away, from counterdie 92, take out glass with framework, make glass thus with framework, have in the glass of framework at this, framework and formed from plate glass are one.
Make framework and formed from plate glass by injection moulding is under the situation of one, has the plate glass problem damaged owing to the pressure of the molten resin that flows in the cavity of mould.In order to solve this damaging problem, in patent documentation 1, disclose: utilize mould plate (dummy plate) to prepare framework, from dividing plate, take out the framework for preparing, then this framework is then arrived plate glass by injection moulding.
Having problems aspect the productivity ratio with the similar following method of the method for patent documentation 1: utilize dividing plate to come shaping frame, from dividing plate, take out framework then, and the framework that takes out is installed on the plate glass.
The method of glass that has framework with this preparation is different, by the resin injection of molten state is come under the situation of moulding resin in mould, is expelled to framework and flows with the resin of the molten state in the cavity form with shunting.When the mobile resin of the form of shunting collaborates, the known defect part that forms the surface in the position, interflow, this defect part is known as weld bond (weld line) and has problems in appearance.
In order to prevent the defective of weld bond, following technology is disclosed in patent documentation 2: the orientation that the resin receiver disturbs the resin or the filler at weld bond place is set.
In patent documentation 3, disclose: after with the resin cavity filling, resin is moved to open and close and to be set near the resin receiver in position, interflow, make resin center on weld bond thus and move.
In addition, be under the situation of one make framework and formed from plate glass by injection moulding, when the resin of molten state solidifies owing to cooling, because the contraction than thickness portion of framework exists as uneven or depression defectives such as (sink).
In patent documentation 4, disclose gas-pressurized has been injected in the resin of injection.According to the method for implanting of gas-pressurized, depend on the cross sectional shape of framework, be difficult to eliminate the lip-deep uneven or depression of framework.
Patent documentation 1: Japanese kokai publication hei 5-057797 communique
Patent documentation 2: Japanese kokai publication hei 5-285990 communique
Patent documentation 3: Japanese kokai publication hei 7-227888 communique
Patent documentation 4: Japanese kokai publication hei 11-170303 communique
Summary of the invention
It is can eliminate under the situation of one because the die for injection molding of the breakage of the plate glass that the pressure of the molten resin that flows in the cavity at mould causes make framework and formed from plate glass by injection moulding that task of the present invention provides a kind of.
In addition, when being inserted into fixed part as fixed parts such as anchor clamps or securing members with in the cavity, thereby then with resin injection to fixed part when fixed part and plate glass are become one, have plate glass or fixed part because the fixed part problem damaged with the pressure of the resin in the cavity.Task of the present invention provides a kind of plate glass or fixed part of preventing owing to be expelled to this fixed part die for injection molding damaged with the pressure of the resin in the cavity.
In addition, task of the present invention provides a kind of die for injection molding that does not produce as the defectives such as uneven or depression on framework surface.
Be used for by the die for injection molding of injection moulding at the circumference moulding resin framework of plate glass, die for injection molding of the present invention is divided at least two, form the framework cavity between separated mould, framework is provided with auxiliary cavity with cavity via intercommunicating pore.Die for injection molding of the present invention comprises at least one feature in following first to fourth feature:
(1) first feature: intercommunicating pore is set at the junction of two streams place of framework with the resin of the molten state in the cavity;
(2) second features: framework is provided with the running channel (runner) that is communicated with via cast gate (gate) with cavity, the resin injection that running channel is used for injecting from the resin inlet is to the framework cavity, and the center line that intercommunicating pore and cast gate are configured such that the center line of intercommunicating pore and cast gate is intersecting each other with 45 angles of spending to the 180 degree scopes on the parallel cross section of the plate glass of cavity with framework;
(3) the 3rd features: with the mode that is used to the incorporate fixed part of fixed part is communicated with cavity the framework cavity to be set via first intercommunicating pore, framework is provided with second intercommunicating pore relative with first intercommunicating pore with cavity or fixed part with cavity, and auxiliary cavity is configured to be communicated with second intercommunicating pore; And
(4) the 4th features: the framework that is used to form thickness and is the framework of 4mm to 12mm is provided with auxiliary cavity with cavity via intercommunicating pore, and except intercommunicating pore, this auxiliary cavity forms the confined space that does not have connected space.
Die for injection molding of the present invention can be the die for injection molding with following feature: in above-mentioned die for injection molding, auxiliary cavity is formed between the separated mould.
Die for injection molding of the present invention can be the die for injection molding with following feature: in above-mentioned die for injection molding, auxiliary cavity only is formed in the mould in the separated mould.
Die for injection molding of the present invention can be the die for injection molding with following feature: in above-mentioned die for injection molding, when forming framework, auxiliary cavity except via intercommunicating pore with framework is communicated with cavity, assist cavity formation confined space.
Die for injection molding of the present invention can be the die for injection molding with following feature: in above-mentioned die for injection molding, form auxiliary cavity by the sealing running channel, and auxiliary cavity is communicated with cavity with framework via cast gate.
Description of drawings
Fig. 1 is near the framework of embodiment 1 schematic cross sectional views of cavity;
Fig. 2 is the horizontal cross along the line 2-2 intercepting of Fig. 1;
Fig. 3 is a framework that the embodiment different with embodiment 1 be shown with near the schematic cross sectional views the cavity;
Fig. 4 is near the cutaway view the edge of the glass with framework of preparation in embodiment 1;
Fig. 5 is near the schematic, horizontal cross-sectional view of cast gate that framework is used cavity;
Fig. 6 is the vertical sectional view along the line 6-6 intercepting of Fig. 5;
Fig. 7 is the vertical sectional view along the line 7-7 intercepting of Fig. 5;
Fig. 8 illustrates the horizontal cross of example that angle θ between the center line of the center line of cast gate and intercommunicating pore is 180 ° a counterdie;
Fig. 9 illustrates the horizontal cross of example that angle θ between the center line of the center line of cast gate and intercommunicating pore is 45 ° a counterdie;
Figure 10 is near the cutaway view the edge of the glass with framework of preparation in embodiment 2;
Figure 11 is provided with cavity under the situation of the intercommunicating pore of assisting cavity at framework, near the schematic cross sectional views of the fixed part cavity;
Figure 12 is the horizontal cross along the line 12-12 intercepting of Figure 11;
Figure 13 is provided with cavity under the situation of the intercommunicating pore of assisting cavity at fixed part, near the schematic cross sectional views of the fixed part cavity;
Figure 14 makes the incorporate situation underframe of securing member with near the schematic cross sectional views the cavity;
Figure 15 is by near the cutaway view the edge of the glass with framework of embodiment 3 preparations;
Figure 16 is the schematic cross sectional views that the position of the injection molding mould that is used to prepare the glass with framework and plate glass is shown;
Figure 17 is the horizontal cross along the line 17-17 intercepting of Figure 16;
Figure 18 is by near the cutaway view the edge of the glass with framework of embodiment 4 preparations;
Figure 19 is the schematic cross sectional views that the position of the injection molding mould that is used to prepare the glass with framework and plate glass is shown.
The specific embodiment
The injection molding that is used to make the glass with framework of the present invention can be provided at the damaged hardly injection molding of forming process plate glass of frame body.
The present invention will be described at the situation that is divided into upper die and lower die based on accompanying drawing.The invention is not restricted to be divided into the situation of upper die and lower die, but applicable to the mould that is divided into left mould and right mould.
As the resin that is used to form framework, can use as thermoplastic elastomer (TPE)s such as polystyrene, olefin-based, vinyl chloride and polyurethane series.
Be shaped at the circumference that makes resinous framework and plate glass under the situation of one, be created in the problem of process of injection molding middle plateform glass breakage.
Hereinafter, first feature of the present invention is carried out detailed exemplary illustration.
By observing damaged plate glass, find that a lot of plate glass breakages appear at the interflow position (junction of two streams) of framework with the resin that flows in the cavity.
About standing injection molding resinite, patent documentation 2 and 3 discloses the technology of the problem of avoiding junction of two streams, and still, these two kinds of technology all are that weld bond is moved.Be difficult to avoid the pressure at the junction of two streams place of the resin that flows to raise.
Framework is provided with gas discharge hole etc. with cavity, and is designed to not have too much load to be applied on the plate glass.Yet, think the variation of the amount of injected resin or pressure changes and the variation of glass shape surpasss the expectation the rising of pressure of the resin at junction of two streams place, thereby make the plate glass breakage.
Fig. 1 is the schematic cross sectional views that is used to make the glass pane with framework of making by injection moulding.Plate glass 3 is maintained between patrix 1 and the counterdie 2, and framework is formed on the edge part of plate glass 3 with cavity 4.Be melted and have mobile resin and be injected into this framework with cavity 4, thereby framework is integral on the circumference of plate glass 3 from not shown inlet.
Made framework and formed from plate glass by injection molding is under the situation of one, and the resin of molten state is injected into framework with the cavity from the inlet of mould via at least two running channels.Running channel is located to be communicated with cavity 4 with framework at the cast gate (gate) with hole narrower than the hole of running channel.
Make resin from running channel injection in framework cavity branch, the resin that is branched flows to framework with in the cavity, and at framework with interflow in the cavity 4.Because the pressure of molten resin is located to raise in position, interflow (junction of two streams), therefore, is tending towards bending load occurring at the edge of plate glass.
Compare with central portion, the damaged load at the edge of plate glass is very little.When since junction of two streams, the resin that promptly flows from different directions at framework with flowing of the molten resin of the position of collision and when the edge part of plate glass produces bending load mutually in the cavity, the possibility height of plate glass breakage.
Therefore, as shown in Figure 1, preferably intercommunicating pore 5 is set being expelled to the position, interflow of framework with the molten resin in the cavity 4, and the auxiliary cavity 6 that is communicated with intercommunicating pore 5 of setting, thereby the pressure that prevents resin raises in the position of framework with interflow in the cavity 4 at resin.
Fig. 2 is the cutaway view along the line 2-2 intercepting of Fig. 1.Auxiliary cavity 6 is communicated with cavity 4 with framework via intercommunicating pore 5.As shown in Figure 2, preferably with the position, interflow of the resin in the cavity intercommunicating pore 5 is set at framework.
When forming framework, except via intercommunicating pore 5 with framework is communicated with cavity 4, assist cavity 6 formation confined spaces, thereby prevent extrusion resin from mould.Therefore, this is preferred.
The resin of necessary usefulness molten state is fill frame cavity 4 fully.Therefore, must have the gas discharge hole that is used for discharging with cavity gas that produces from the resin of molten state and the air that before the resin of injection molten state, has existed from framework.Yet preferably auxiliary cavity does not have the gas discharge hole that is used to discharge gas with the external communications of mould.
Near intercommunicating pore 5, needn't have and be used to discharge gas that produces from the resin of molten state and the gas discharge hole of the air that before the resin of injection molten state, has existed.
As shown in Figure 1, preferably in counterdie 2, form auxiliary cavity 6, because the easy like this patrix 1 that removes.Yet, can form auxiliary cavity 6 in the mode of crossing over counterdie 2 and patrix 1 extension, perhaps can only in patrix 1, form auxiliary cavity 6.
Preferably with length direction, be that the flow direction of molten resin forms intercommunicating pore 5 perpendicular to the mode of the end face 7 of plate glass, because this has reduced the load that makes the plate glass bending that produced by resin flows.
Fig. 3 shows the situation that intercommunicating pore 5 is set in the mode parallel with the end face 7 of plate glass.Owing to produced the framework of the end face of plate glass upper plenum 41 and the framework difference of the interflow time of the resin of the molten state between the cavity 42 down, the difference of the sectional area under perhaps the framework of the end face of plate glass is used with upper plenum 41 and framework between the cavity 42, therefore, the load that produces on plate glass when reducing to collaborate is effective.
Under auxiliary cavity shown in Figure 3 was formed on situation in the counterdie 2, counterdie 2 was divided into counterdie 21 and counterdie 22, and auxiliary cavity 6 is set between counterdie 21 and the counterdie 22.Usually, patrix 1 is used as movable pattern, and counterdie 2 is used as stationary mould.The preferred counterdie 2 that uses is as movable pattern, because the easy like this glass with framework that takes out from counterdie 2 has in the glass of framework at this, framework is by moulding integratedly.
Be used for the one-body molded injection molding to plate glass of framework, the resin of injecting from inlet is injected into framework with the cavity via running channel.Many times, at least two running channels are set, and running channel is communicated with cavity 4 with framework via the cast gate with diameter littler than the diameter of running channel.
The resin of this molten state be injected into via at least two running channels framework with the injection molding in the cavity in, if a running channel is closed,, become the junction of two streams of resin near the cast gate of this running channel then many times.
Therefore, can seal near the position of inlet of running channel, thereby auxiliary cavity of the present invention is provided.In addition, under the situation of using running channel as auxiliary cavity, cast gate is as intercommunicating pore.Therefore, can preferably use the auxiliary cavity of running channel conduct that is arranged in the injection molding.
As shown in Figure 1, under the situation that intercommunicating pore 5 is arranged on the interflow position of resin in framework usefulness cavity 4 that is expelled to the molten state in the framework usefulness cavity 4, and under the situation that the auxiliary cavity 6 is communicated with intercommunicating pore 5 is set, the amount of the resin of expectation injection is used the volume of cavity greater than framework and less than the framework volume of cavity 4 and the volume sum of auxiliary cavity 6.
Hereinafter, will carry out detailed exemplary illustration to second feature of the present invention.
As shown in Figure 5, by the resin of molten state is expelled to framework with forming framework the cavity 14 from the not shown inlet of mould via running channel 17.
Framework communicates with each other via cast gate 18 with cavity 14 and running channel 17.
By observing damaged glass, find that being injected into framework from running channel 17 at resin has a lot of plate glass breakages near with the cast gate the cavity 14.
Many times, determine to be provided with the position of the cast gate 18 of mould by the shape of framework.Depend on the position that cast gate 18 is set, the injection moulding that the damaged frequency height of plate glass and framework may the occur situation of difficult that becomes.
Even the present invention can provide in any position cast gate is set, also can make the mould that the breakage that makes the plate glass that the position owing to cast gate causes reduces.
As shown in Figure 5 and Figure 6, plate glass 13 is maintained between patrix 11 and the counterdie 12, and framework is formed on the edge part of plate glass 13 with cavity 14.Have mobile molten resin and be injected into this framework with the cavity 14, thereby form framework at the circumference of plate glass 13 from running channel 17.
Be used for resin injection is set at more than one position to framework with the running channel 17 of cavity 14.The resin of molten state is injected into framework with the cavity 14 from running channel 17 via cast gate 18.
Near the framework usefulness cavity 14 that is communicated with running channel 17, when start injection, the big pressure of molten resin is applied to the edge of plate glass 13 as load.Thereby, the possibility height of plate glass 13 breakages.
Therefore, as shown in Figure 5, expectation is provided with cavity 14 by the framework that is injected into for the resin of molten state via intercommunicating pore 15 on the horizontal cross-section that comprises cast gate 18 and assists cavity 16, reduces the pressure of resin when the resin of molten state is injected in the framework usefulness cavity 14.
Fig. 6 is that the auxiliary cavity 16 that is formed in the counterdie 12 is communicated with cavity 14 with framework via intercommunicating pore 15 along the vertical sectional view of the line 6-6 intercepting of Fig. 5.In addition, shown in Fig. 7 (along the cutaway view of the line 7-7 of Fig. 5 intercepting), the resins that flow via running channel 17 are injected into framework with the cavity 14 from cast gate 18.
Although auxiliary cavity 16 is formed in the counterdie 2,, auxiliary cavity 16 only is formed in the patrix 11 or is formed on patrix 11 and counterdie 12 is optional among both.
In order to make auxiliary cavity 16 can reduce the pressure of resin effectively, as shown in Figure 5, expectation will be injected angle θ that the center line b of the center line c of the cast gate 18 that the resin of molten state uses and intercommunicating pore 15 intersects each other and will be set in 45 ° to 180 ° the scope.
When the diameter of the diameter of cast gate 18 and intercommunicating pore 15 differs from one another, perhaps be formed in the counterdie 2 and auxiliary cavity 16 when being formed in the patrix 11 when running channel 17, the position of the in the vertical direction of center line becomes and differs from one another, thus center line mutually disjoints.Therefore, here, angle of cut θ be defined as owing to the center line b of the center line c of cast gate 18 and intercommunicating pore 15 vertically (direction vertical) with the plane of plate glass project to framework and go up the angle that center line c and center line b are intersected each other on horizontal plane with the horizontal cross-section (with the parallel plane cross section of plate glass) of cavity.
Be divided at injection molding under the situation of left mould and right mould, become horizontal direction, become vertical cross-section with the cross section of cavity with the parallel plane framework of plate glass with the parallel plane direction of plate glass.Therefore, the equal along continuous straight runs projection of the center line b of the center line c of cast gate 18 and intercommunicating pore 15 and all be projected to framework with on the vertical cross-section of cavity.
The center line c that Fig. 8 shows cast gate 81 becomes the example of 180 ° mould with the center line b of intercommunicating pore 51.Fig. 9 shows the example of the center line of the center line c of cast gate 82 and intercommunicating pore 52 mould at 45.
Preferably only be formed in the patrix 11, only be formed in the counterdie 12 or to cross over the mode mfg. moulding die that patrix 11 and counterdie 12 extend with auxiliary cavity 16.
The center line c of expectation cast gate and the center line b of intercommunicating pore intersect each other as required.Under the situation that the center line b of the center line c of cast gate and intercommunicating pore mutually disjoints, that expectation projects to the center line b of the center line c of cast gate and intercommunicating pore, and framework adjust angle of cut θ with the angle on the parallel plane cross section of the plate glass of cavity.
Preferably when forming framework, auxiliary cavity except via intercommunicating pore with framework is communicated with cavity 14, assist cavity formation confined space, thereby resin can not flow to outside the mould.
As Fig. 5, Fig. 8 and shown in Figure 9, under near the situation that auxiliary cavity 16 is being set via intercommunicating pore 15,51,52 cast gate 18,81,82, expectation make with the amount of injected resin greater than framework with the volume of cavity and less than framework with the volume of cavity 14 and the volume sum of auxiliary cavity 16.
Hereinafter, will carry out detailed exemplary illustration to the 3rd feature of the present invention.
Usually, the glass that will have a framework by adhesive is fixed to vehicle body.Use as the temporary transient glass that keeps having framework of fixed parts such as anchor clamps or securing member, till the glass that will have framework until adhesive curing is fixed firmly to vehicle body.
When having the glass of framework,, in the framework moulding, with cavity fixed part and plate glass are made one by in mould, forming fixed part many times by the injection moulding preparation.
Fixed part is inserted into the fixed part of mould with in the cavity, and resin injection is used in the cavity, with shaping frame to framework.Simultaneously, also allow resin flows to the fixed part that is communicated with cavity with framework with in the cavity, thereby carry out the integrated of fixed part simultaneously.
Like this, plate glass or fixed part may be owing to flow to fixed part breakage with the pressure of the resin in the cavity.
Integrated about fixed part, for example, as shown in figure 11, counterdie 22 is provided with fixed part with cavity 61 with cavity 24 places via first intercommunicating pore 60 at framework.When shaping frame, fixed part (anchor clamps 62) is inserted into fixed part with in the cavity 61, carries out integrated between fixed part (anchor clamps 62) and the plate glass 23 by flowing to fixed part with the resin in the cavity 61.
In order to prevent the breakage of above-mentioned plate glass and fixed part, for example, as shown in figure 11, framework is provided with the intercommunicating pore 25 relative with first intercommunicating pore 60 with cavity 24, and auxiliary cavity 26 is configured to be communicated with intercommunicating pore 25.
Figure 12 shows along the horizontal cross-section of the line 12-12 intercepting of Figure 11.Show the horizontal cross sectional geometry of intercommunicating pore 25 and auxiliary cavity 26.Be desirably on the extended line of center line of first intercommunicating pore 60 shown in the dotted line and intercommunicating pore 25 be set with respect to first intercommunicating pore 60.
Figure 13 shows the example that intercommunicating pore 27 is configured to situation about being communicated with cavity 61 with fixed part.Auxiliary cavity 28 is configured to be communicated with intercommunicating pore 27.
Figure 14 shows the example of securing member 63 as the situation of fixed part.
As Figure 11, Figure 13 and shown in Figure 14, carrying out under framework and fixed part 62 or the 63 incorporate injection molding situations, expectation will by injection be used for moulding resin amount greater than framework with cavity 24, fixed part with the total measurement (volume) of the cavity 61 and first intercommunicating pore 60 105% and less than be added to the volume that framework obtains with the total measurement (volume) of the cavity 61 and first intercommunicating pore 60 with cavity 24, fixed part by the volume that will assist cavity 26 or 28.
Hereinafter, will carry out detailed exemplary illustration to the 4th feature of the present invention.
If the thickness of the framework 30 of the periphery that is formed on plate glass 33 shown in Figure 18 is big, then produce following problem: after resin is injected in the framework usefulness cavity, resin reduces along with temperature and shrinks till resin solidification, thus the uneven and depression that on the framework surface, produces.Therefore, as shown in figure 16, preferably will assist cavity 36 to be arranged on the position that uneven and depression defect occur.
In Figure 16, in counterdie 32, framework is provided with auxiliary cavity 36 with cavity 34 via intercommunicating pore 35.
Preferably except with auxiliary cavity 36 intercommunicating pore 35 is communicated with not with external communications.Because auxiliary cavity 36 becomes confined space, therefore, resin be injected into framework with cavity after, the air in the auxiliary cavity 36 becomes compressive state, thereby changes framework into pressurized state with the resin in the cavity, till resin solidification.Therefore, do not produce depression in the surface or uneven etc.
Especially, the depression thickness t that is tending towards being created in framework shown in Figure 180 30 becomes the above position of 4mm.Owing to design the framework 30 that thickness is approximately 12mm, therefore, for molding thickness t is a framework 30 more than the 4mm and below the 12mm, preferred framework is provided with intercommunicating pore with cavity 34.
Framework is one-body molded under the situation of plate glass, be injected into framework with the cavity via at least two running channels from the resin of the molten state of the inlet of mould injection by injection molding.Running channel is communicated with cavity with framework via the internal diameter cast gate littler than the internal diameter of running channel.
In this mould, can be by near at least one running channel of sealing inlet and by using this running channel to come moulding not have the framework of depression as auxiliary cavity.In this case, cast gate becomes intercommunicating pore.
As shown in figure 16, be set at intercommunicating pore 35 and the auxiliary cavity 36 that is communicated with intercommunicating pore 35 under the situation of the big position of the thickness t of framework, expectation make with the amount of injected resin greater than framework with the volume of cavity and less than framework with the volume of cavity 34 and the volume sum of auxiliary cavity 36.
Embodiment
Hereinafter, specify the present invention by means of embodiment.Yet, the invention is not restricted to these embodiment.The following examples 1-4 corresponds respectively to first to fourth feature of the present invention.Comparative example 1 is compared with embodiment 4.
Embodiment 1
Fig. 4 shows the section by the frame part of the glass with framework of mould manufacturing according to the present invention, has in the glass of framework at this, and framework 10 becomes one with plate glass 3.
Make the glass that this has framework by using mould shown in Figure 1.Mould is made of patrix 1 and counterdie 2.Counterdie 2 is provided with the auxiliary cavity 6 that is communicated with cavity 4 via intercommunicating pore 5 and framework.
Inlet position and framework by not shown resin estimate to collaborate the position with the volume of cavity 4, and the position of intercommunicating pore 5 is set at this position, interflow.
As shown in Figure 1, plate glass 3 is maintained between patrix 1 and the counterdie 2 with the mode in the cavity 4 in framework with the peripheral part of plate glass 3, and injects the polyvinyl chloride resin from the not shown inlet of mould.
Then, after resin solidification, remove patrix 1, and from counterdie 2, take out plate glass 3 with shaping frame.Make the glass with framework shown in Figure 4 by the resin that excision is formed in intercommunicating pore 5 and the auxiliary cavity 6.
Have in the manufacturing of glass of framework at this, the breakage of plate glass takes place near the junction of two streams of molten resin hardly.
Figure 10 shows the section by the frame part of the glass with framework of mould manufacturing according to the present invention, has in the glass of framework at this, and framework 19 becomes one with plate glass 13.
Make the glass that this has framework by using mould shown in Figure 5.Mould is made of patrix 11 and counterdie 12.Counterdie 12 is provided with the auxiliary cavity 16 that is communicated with cavity 14 via intercommunicating pore 15 and framework.
The Corvic of molten state is injected into the framework of mould shown in Figure 5 with the cavity 14 from running channel 17 and cast gate 18.
Then, after resin solidification, remove patrix 11, and from counterdie 12, take out plate glass 13 with shaping frame.Make the glass with framework shown in Figure 10 by the resin that excision is formed in intercommunicating pore 15 and the auxiliary cavity 16, have in the glass of framework at this, framework 10 becomes one with plate glass 13.
Have in the manufacturing of glass of framework at this, the breakage of plate glass takes place near with cavity hardly at the framework that is communicated with running channel.
Figure 15 shows the section by the frame part of the glass with framework of mould manufacturing according to the present invention, has in the glass of framework at this, and framework 70 becomes one with plate glass 23.
Make the glass that this has framework by using mould shown in Figure 11.Mould is made of patrix 21 and counterdie 22.Counterdie 22 is provided with the auxiliary cavity 61 that is communicated with cavity 24 via first intercommunicating pore 60 and framework.
In addition, the auxiliary cavity 26 that is communicated with cavity 24 via intercommunicating pore 25 and framework is set.
Anchor clamps 62 are used as fixed part.Anchor clamps 62 are inserted into fixed part with in the cavity 61.The Corvic of molten state is injected into the framework of mould shown in Figure 11 with the cavity 24 from not shown inlet.
Then, after resin solidification, remove patrix 21, and from counterdie 22, take out plate glass 23 with shaping frame.Make the glass with framework shown in Figure 15 by the resin that excision is formed in intercommunicating pore 25 and the auxiliary cavity 26, have in the glass of framework at this, by Corvic anchor clamps 62 are fixed to plate glass 23, and framework 70 becomes one with plate glass 23.
Have in the manufacturing of glass of framework at this, near the breakage of the damaged and plate glass fixed part of fixed part takes place hardly.
Example 4
Figure 18 shows the section by the frame part of the glass with framework of mould manufacturing according to the present invention, has in the glass of framework at this, and framework 30 becomes one with plate glass 33.
Make the glass that this has framework by using mould shown in Figure 16.Mould is made of patrix 31 and counterdie 32.Counterdie 32 is provided with the auxiliary cavity 36 that is communicated with cavity 34 via first intercommunicating pore 35 and framework.
Be set to 4mm by the framework that is provided with intercommunicating pore 35 with the thickness of cavity molding framework.
As shown in figure 16, plate glass 33 is maintained between patrix 31 and the counterdie 32 with the mode in the cavity 34 in framework with the peripheral part of plate glass 33, and from not shown inlet injection polyvinyl chloride resin.
Then, after resin solidification, remove patrix 31, and from counterdie 32, take out plate glass 33 with shaping frame.Make the glass with framework shown in Figure 180 by the resin that excision is formed in intercommunicating pore 35 and the auxiliary cavity 36.
Have in the manufacturing of glass of framework at this, produce the defective of the uneven of framework surface and depression hardly.
Comparative example 1
Make glass by the intercommunicating pore 35 that seals mould shown in Figure 16 with framework similar to Example 4ly.As a result, many depressions on the framework surface, have been found.
Claims (5)
1. die for injection molding, it is used for by the circumference moulding resin framework of injection moulding at plate glass, described die for injection molding is divided at least two, between separated mould, form the framework cavity, described framework is provided with auxiliary cavity with cavity via intercommunicating pore, and described die for injection molding comprises at least one feature in following first to fourth feature:
(1) first feature: described intercommunicating pore is set at the junction of two streams place of described framework with the resin of the molten state of cavity;
(2) second features: described framework is provided with the running channel that is communicated with via cast gate with cavity, the resin injection that described running channel is used for injecting from the resin inlet is to described framework cavity, and the center line that described intercommunicating pore and described cast gate are configured such that the center line of described intercommunicating pore and described cast gate is intersecting each other with 45 angles of spending to the 180 degree scopes on the parallel cross section of the plate glass of cavity with described framework;
(3) the 3rd features: with the mode that is used to the incorporate fixed part of fixed part is communicated with cavity described framework cavity to be set via first intercommunicating pore, described framework is provided with second intercommunicating pore relative with described first intercommunicating pore with cavity or described fixed part with cavity, and described auxiliary cavity is configured to be communicated with described second intercommunicating pore; And
(4) the 4th features: the described framework that is used to form thickness and is the framework of 4mm to 12mm is provided with auxiliary cavity with cavity via intercommunicating pore, and except described intercommunicating pore, this auxiliary cavity forms the confined space that does not have connected space.
2. die for injection molding according to claim 1 is characterized in that, described auxiliary cavity is formed between the separated mould.
3. die for injection molding according to claim 1 and 2 is characterized in that, described auxiliary cavity only is formed in the mould in the separated mould.
4. according to each described die for injection molding in the claim 1 to 3, it is characterized in that, when forming described framework, described auxiliary cavity except via described intercommunicating pore with described framework is communicated with cavity, described auxiliary cavity formation confined space.
5. die for injection molding according to claim 1, it is used to make the glass with framework, it is characterized in that, form described auxiliary cavity by sealing described running channel, and described auxiliary cavity is communicated with cavity with described framework via described cast gate.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007122362A JP2008273133A (en) | 2007-05-07 | 2007-05-07 | Injection mold |
| JP122363/2007 | 2007-05-07 | ||
| JP122325/2007 | 2007-05-07 | ||
| JP122362/2007 | 2007-05-07 | ||
| JP122364/2007 | 2007-05-07 | ||
| JP2007122363A JP2008273134A (en) | 2007-05-07 | 2007-05-07 | Injection mold |
| JP2007122325A JP2008273132A (en) | 2007-05-07 | 2007-05-07 | Injection mold used for manufacturing framed glass |
| JP2007122364A JP2008273135A (en) | 2007-05-07 | 2007-05-07 | Injection mold |
| PCT/JP2008/057833 WO2008139868A1 (en) | 2007-05-07 | 2008-04-23 | Injection molding die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101622118A true CN101622118A (en) | 2010-01-06 |
| CN101622118B CN101622118B (en) | 2015-06-03 |
Family
ID=40051718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880006163.3A Expired - Fee Related CN101622118B (en) | 2007-05-07 | 2008-04-23 | Injection molding die |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008273133A (en) |
| CN (1) | CN101622118B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103003043A (en) * | 2010-07-20 | 2013-03-27 | 中央硝子株式会社 | Lace-molding die and method for producing glass with decorative lacing using the die |
| CN104203531A (en) * | 2012-04-06 | 2014-12-10 | 旭硝子株式会社 | Planar body provided with resin frame and method for producing planar body provided with resin frame |
| CN104249434A (en) * | 2013-06-28 | 2014-12-31 | 纬创资通股份有限公司 | Injection molding module and injection molding method thereof |
| CN106159538A (en) * | 2014-09-24 | 2016-11-23 | 阿尔卑斯电气株式会社 | Socket |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6846292B2 (en) * | 2017-06-02 | 2021-03-24 | 株式会社ブリヂストン | Manufacturing method for injection molding dies, resin members, and resin products |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62256621A (en) * | 1986-04-30 | 1987-11-09 | Niles Parts Co Ltd | Manufacture of resin molded product |
| JPH07144338A (en) * | 1993-11-25 | 1995-06-06 | Asahi Glass Co Ltd | Production of glass plate fitted with frame member |
| JP2005047257A (en) * | 2003-07-15 | 2005-02-24 | Tokai Kogyo Co Ltd | Manufacturing method for window assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57185130A (en) * | 1981-05-11 | 1982-11-15 | Hashimoto Forming Co Ltd | Method of injection molding resin product |
| JPS59107223A (en) * | 1982-12-10 | 1984-06-21 | Toshiba Corp | Spectrochemical analyzer |
-
2007
- 2007-05-07 JP JP2007122362A patent/JP2008273133A/en active Pending
-
2008
- 2008-04-23 CN CN200880006163.3A patent/CN101622118B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62256621A (en) * | 1986-04-30 | 1987-11-09 | Niles Parts Co Ltd | Manufacture of resin molded product |
| JPH07144338A (en) * | 1993-11-25 | 1995-06-06 | Asahi Glass Co Ltd | Production of glass plate fitted with frame member |
| JP2005047257A (en) * | 2003-07-15 | 2005-02-24 | Tokai Kogyo Co Ltd | Manufacturing method for window assembly |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103003043A (en) * | 2010-07-20 | 2013-03-27 | 中央硝子株式会社 | Lace-molding die and method for producing glass with decorative lacing using the die |
| CN103003043B (en) * | 2010-07-20 | 2015-04-22 | 中央硝子株式会社 | Lace-molding die and method for producing glass with decorative lacing using the die |
| CN104203531A (en) * | 2012-04-06 | 2014-12-10 | 旭硝子株式会社 | Planar body provided with resin frame and method for producing planar body provided with resin frame |
| CN104203531B (en) * | 2012-04-06 | 2017-03-08 | 旭硝子株式会社 | The manufacture method of the plate body of the plate body of resin framework and resin framework |
| CN104249434A (en) * | 2013-06-28 | 2014-12-31 | 纬创资通股份有限公司 | Injection molding module and injection molding method thereof |
| CN104249434B (en) * | 2013-06-28 | 2016-07-13 | 纬创资通股份有限公司 | Injection molding module and injection molding method thereof |
| CN106159538A (en) * | 2014-09-24 | 2016-11-23 | 阿尔卑斯电气株式会社 | Socket |
| CN106159538B (en) * | 2014-09-24 | 2018-11-09 | 阿尔卑斯电气株式会社 | Socket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101622118B (en) | 2015-06-03 |
| JP2008273133A (en) | 2008-11-13 |
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