CN210121947U - Mould with movable cavity - Google Patents
Mould with movable cavity Download PDFInfo
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- CN210121947U CN210121947U CN201920808962.8U CN201920808962U CN210121947U CN 210121947 U CN210121947 U CN 210121947U CN 201920808962 U CN201920808962 U CN 201920808962U CN 210121947 U CN210121947 U CN 210121947U
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Abstract
The utility model provides a mould with activity die cavity, it is including removing mould and fixed mould, it is equipped with and removes mould strutting arrangement to remove the mould, the fixed mould is equipped with fixed mould strutting arrangement, remove the mould with the fixed mould is mutually supported, it is equipped with and removes the mould core to remove the mould, be equipped with the fixed mould on the fixed mould, its characterized in that still includes direction subassembly, water course device and location structure, it includes second moving mechanism and stop device to remove the mould, second moving mechanism passes through direction subassembly stop device with remove mould swing joint. The utility model discloses a mould with activity die cavity is owing to be equipped with movable die cavity, can adjust the size of activity die cavity according to the demand of product, makes the volume that the activity die cavity stops before the compression be greater than the product, and liquid raw materials flows easily in great volumetric activity die cavity, and the product is easy shaping under low-speed or low pressure, and product internal stress is good in addition, the outward appearance is beautiful, thickness is even, combined material is difficult for the alternate segregation.
Description
Technical Field
The utility model relates to a mould especially relates to a mould with activity die cavity.
Background
An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.
The injection mold consists of a movable mold and a fixed mold, the movable mold is arranged on a movable mold plate of the injection molding machine, the fixed mold is arranged on a fixed mold plate of the injection molding machine, the movable mold and the fixed mold form a fixed mold cavity, and the size of the mold cavity cannot be changed. And when the mold is opened, the movable mold is separated from the fixed mold so as to take out the plastic product. In order to reduce the heavy mold design and manufacturing effort, injection molds mostly employ standard mold bases.
At present, the fashioned mould of product in the mould industry all adopts toward fixed die cavity injecting glue, the size of fixed die cavity volume is the same with the volume size of product, and fixed die cavity is littleer at fashioned in-process and leads to the raw materials flow resistance big, is difficult to the shaping, must increase injection pressure and penetrate gluey speed in order to reach the product shaping, leads to the internal stress of the product of shaping big like this, and the outward appearance is not good, thickness is inhomogeneous, combined material readily releasable to make product quality very poor, the yield is low.
SUMMERY OF THE UTILITY MODEL
Based on prior art not enough, the utility model aims to provide a mould with activity die cavity, because it uses the activity die cavity, can adjust the size of activity die cavity according to the difference of required shaping product specification and size moreover, before perhaps annotating the material or when annotating the material, the volume of activity die cavity can be greater than the volume of shaping product, consequently the resistance that the raw materials flowed in the activity die cavity can diminish, makes the raw materials flow easily at activity die cavity to realize the easy shaping of product, lead to that product internal stress is good, the outward appearance is beautiful, thickness is even, combined material is difficult for separating.
In order to achieve the above object, the present invention provides a mold with a movable cavity, comprising a movable mold and a fixed mold, wherein the movable mold is provided with a movable mold supporting device, the fixed mold is provided with a fixed mold supporting device, the movable mold and the fixed mold are mutually matched, the movable mold is provided with a movable mold core, the fixed mold is provided with a fixed mold core, the movable mold is characterized in that the mold further comprises a guiding assembly, a water channel device and a positioning structure, the movable mold comprises a second moving mechanism and a limiting device, the second moving mechanism is movably connected with the movable mold through the guiding assembly and the limiting device, the mold core of the movable mold is positioned on the supporting device of the movable mold through the positioning structure, the mold core of the fixed mold is positioned on the supporting device of the fixed mold through the positioning structure, the water channel devices are distributed in the movable die and the fixed die.
As the utility model discloses the improvement of the mould with activity die cavity, the utility model discloses mould with activity die cavity still includes exhaust apparatus, secondary moving mechanism bears device, mold insert combination and connecting piece including removing, the mold insert combination passes through the connecting piece is fixed remove and bear on the device, the mold insert combination remove the mould mold core with movable die cavity is constituteed to the fixed mould mold core, exhaust apparatus establishes around the activity die cavity, the mold insert combination directly or indirectly passes through location structure location is in remove the mould on the strutting arrangement.
As the utility model discloses the improvement of the mould with activity die cavity, the utility model discloses mould with activity die cavity exhaust apparatus includes gas tank, exhaust clearance and exhaust passage, exhaust clearance with gas tank UNICOM, exhaust clearance has more than two or two, each exhaust clearance's size basis the difference of exhaust clearance place mould position is set for.
As the utility model discloses the improvement of the mould with activity die cavity, the utility model discloses the mould with activity die cavity the size in exhaust gap changes in proper order perhaps from the most proximal end of the feed inlet from the mould to the most distal end from the feed inlet of mould the size in exhaust gap changes in proper order from the easiest position of mould shaping to the most difficult position of mould shaping.
As the utility model discloses the improvement of the mould with activity die cavity, the utility model discloses mould with activity die cavity location structure includes purt mouth mold insert, feed inlet mold insert and locating pin, purt mouth mold insert passes through the locating pin to be installed the central point of fixed mould puts, the feed inlet mold insert passes through the locating pin to be installed remove the central point of mould puts.
As the utility model discloses the improvement of the mould with activity die cavity, the utility model discloses the mould with activity die cavity is one or more.
As the utility model discloses the improvement of the mould with activity die cavity, the utility model discloses the mould with activity die cavity exhaust clearance's size is L, and 0.005mm is less than or equal to L and is less than or equal to 0.05 mm.
Compared with the prior art, the utility model discloses mould with activity die cavity has following beneficial effect: the movable die cavity is arranged, so that the size of the movable die cavity can be adjusted according to the requirement of a product, the volume of the movable die cavity before the movable die cavity stops compressing is larger than the volume of the product, the flowing resistance of the liquid raw material in the movable die cavity with larger volume can be reduced, the liquid raw material can flow easily, the product can be molded easily at low speed or low pressure, the product has good internal stress, attractive appearance and uniform thickness, and composite materials are not easy to separate from each other.
Drawings
Fig. 1 is a schematic diagram of a first step of the working process of a mold with a movable cavity in a preferred embodiment of the mold with a movable cavity of the present invention.
Fig. 2 is a schematic diagram of a second step of the working process of the mold with the movable cavity in the preferred embodiment of the mold with the movable cavity of the present invention.
Fig. 3 is a third schematic diagram of the working process of the mold with the movable cavity in the preferred embodiment of the mold with the movable cavity of the present invention.
Fig. 4 is a fourth schematic diagram of the working process of the mold with the movable cavity in the preferred embodiment of the mold with the movable cavity of the present invention.
Fig. 5 is a sixth schematic diagram of the working process of the mold with the movable cavity in the preferred embodiment of the mold with the movable cavity of the present invention.
Fig. 6 is a sixth schematic diagram of the working process of the mold with the movable cavity in the preferred embodiment of the mold with the movable cavity of the present invention.
Fig. 7 is a seventh schematic diagram of the working process of the mold with the movable cavity in the preferred embodiment of the mold with the movable cavity of the present invention.
Fig. 8 is an eighth schematic diagram of the working process of the mold with the movable cavity in the preferred embodiment of the mold with the movable cavity according to the present invention.
Fig. 9 is a schematic structural view of a movable mold according to a preferred embodiment of the mold with a movable cavity of the present invention.
Fig. 10 is a structural view of a fixed mold of a preferred embodiment of the mold having a movable cavity according to the present invention.
Fig. 11 is a top view of the light guide plate blank of the product produced by the mold with movable cavity in the preferred embodiment of the mold with movable cavity of the present invention.
Fig. 12 is a top view of the mobile phone rear cover blank produced by the mold with the movable cavity in the preferred embodiment of the mold with the movable cavity of the present invention.
Fig. 13 is a schematic view of the sectional structure a-a of the movable mold according to the preferred embodiment of the mold with movable cavity of the present invention.
Fig. 14 is a schematic view of the cross-sectional structure of the fixed mold of the preferred embodiment of the mold having a movable cavity according to the present invention in a C-C section.
Fig. 15 is a partial enlarged view of the portion M of the schematic a-a sectional structure of the movable mold according to the preferred embodiment of the mold with movable cavity of the present invention.
Fig. 16 is a schematic cross-sectional view of the mold of the preferred embodiment of the present invention having a movable cavity after the movable mold and the fixed mold are closed.
Fig. 17 is a partially enlarged view of a portion K in a cross-sectional configuration diagram after a movable mold and a fixed mold are assembled in a preferred embodiment of the mold having a movable cavity according to the present invention.
Detailed Description
The utility model discloses lid, cell-phone shell or optics class product behind the mould with activity die cavity is applicable to production thin wall product, battery, and the material of use is high viscosity material or low viscosity material, the combined material of difficult alternate segregation or the combined material of easy alternate segregation.
Preferred and other embodiments of the mold having a movable cavity according to the present invention will be described in detail with reference to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13, fig. 14, fig. 15, fig. 16, and fig. 17.
The utility model provides a mould with movable cavity, it includes removes mould 1 and fixed mould 2, it is equipped with removes mould strutting arrangement 1.10 to remove mould 1, the fixed mould is equipped with fixed mould strutting arrangement 2.4 to remove mould 2, remove mould 1 with fixed mould 2 mutually supports, remove mould 1 is equipped with removes mould core 1.12, be equipped with fixed mould core 2.1 on the fixed mould 2, its characterized in that still includes direction subassembly 3, water course device 5 and location structure 6, remove mould 1 and include second time moving mechanism 1.1 and stop device 1.2, second time moving mechanism 1.1 passes through direction subassembly 3, stop device 1.2 with remove mould 1 swing joint, the mould core 1.12 of removing mould 1 passes through location structure 6 and fixes a position on removing mould 1 strutting arrangement 1.10, mould core 2.1 of fixed mould 2 passes through location structure 6 and fixes a position on fixed mould 2 strutting arrangement 2.4, the water channel devices 5 are distributed in the moving die 1 and the fixed die 2.
In this embodiment, the utility model discloses mould with movable cavity still includes exhaust apparatus 8, secondary moving mechanism 1.1 bears device 1.1.1, mold insert combination 1.1.2 and connecting piece 1.1.3 including removing, mold insert combination 1.1.2 passes through connecting piece 1.1.3 is fixed remove and is born on the device 1.1.1, mold insert combination 1.1.1 remove mould core 1.12 with movable cavity is constituteed to fixed mould core 2.1, exhaust apparatus 8 establishes around the movable cavity, mold insert combination 1.1.2 directly or indirectly pass through location structure 6 is fixed a removal mould 1 on the strutting arrangement 1.10.
In this embodiment, the utility model discloses mould with movable cavity exhaust apparatus 8 includes gas tank 8.1 and exhaust gap 8.2, exhaust gap 8.2 with gas tank 8.1 UNICOM, exhaust gap 8.2 has two or more, the size basis of each exhaust gap 8.2 the difference of the mould position in exhaust gap 8.2 place is set for.
In this embodiment, the utility model discloses the mould with activity die cavity the size of exhaust gap 8.2 changes in proper order or the size of exhaust gap 8.2 changes in proper order from the easiest position of mould shaping to the position that the mould shaping is the hardest from the feed inlet most proximal end of leaving the mould to the feed inlet most distal end of leaving the mould.
In this embodiment, the utility model discloses mould with movable cavity location structure 6 includes purt mouth mold insert 6.1, feed inlet mold insert 6.2 and locating pin 6.3, purt mouth mold insert 6.2 is installed through locating pin 6.3 the central point of fixed mould 2 puts, feed inlet mold insert 6.2 installs through locating pin 6.3 remove the central point of mould 1 and put.
In this embodiment, the number of the movable cavities of the mold having the movable cavity of the present invention is two.
In this embodiment, the size of the exhaust gap 8.2 of the mold having the movable cavity of the present invention is L, which is 0.025 mm.
The utility model discloses the work process of mould production thin wall product light guide plate stock with activity die cavity is as follows:
the thickness of light guide plate stock is 0.4mm, and long 152mm, wide 70mm, raw materials use PC-1501, injection molding machine model: sumitomo LGP180, screw diameter 25 mm.
The existing light guide plate blank molding adopts a plastic processing method that a common mold is directly used for injection molding, the size of a mold cavity of the mold cannot be changed, and after materials are directly injected into a fixed mold cavity, the materials are injected into a mold cavity of a closed mold by a plunger or a reciprocating screw to form a product.
The common mould directly injects ultrathin product light guide plate blank, although the injected liquid raw material has good fluidity, because the ultrathin product light guide plate blank is ultrathin under the volume of the forming cavity, the material is injected under higher pressure, and the pressure is 2800kgf/cm2The high pressure causes large internal stress of the formed light guide plate blank, bad appearance and uneven thickness of the near end and the far end of the feeding hole.
In this embodiment, the utility model discloses the size of the mould cavity of the mould with activity die cavity can change, the volume that makes the activity die cavity before annotating the material or when annotating the material is greater than the volume of product, so can carry out the liquid raw materials that injection mobility is good with the lower pressure of higher speed, feed rate is higher for 1000mm/s, it is lower for 1800kgf/cm to annotate material pressure, the low pressure leads to the internal stress of fashioned light guide plate stock little, good appearance, the feed inlet near-end is even with distal end thickness.
Firstly, the PC raw material is dried and conveyed to an injection molding machine to convert the raw material from a solid state to a liquid state.
In the second step, the movable mold 1 is moved toward the fixed mold 2, specifically, F1 in fig. 2, and mold closing is started.
Thirdly, when the insert combination 1.1.1 contacts the fixed mold 2, a movable cavity A is formed by the movable mold 1, the fixed mold 2 and the insert combination 1.1.1, which is shown in detail as F2 in figure 3, and the volume of the movable cavity is maximum, and the maximum movable distance of the second moving mechanism relative to the movable mold is L0.
In the fourth step, the moving mold 1 continues to move towards the fixed mold 2 until the moving mold 1 is attached to the second moving mechanism 1.1, and a completely closed state is achieved, which is detailed in F3 in fig. 4, at this time, a movable cavity D is formed, the volume of the movable cavity D is the minimum, at this time, the distance between the second moving mechanism 1.1 and the moving mold 1 is L1, and L1 is 0, and the compression parameters of the moving mold 1 are set. The process is to correct the mold, let the injection molding machine sense the state of the minimum cavity of the mold, if not let the injection molding machine sense the correct state of the minimum cavity, will make the volume of feeding produce the error and lead to the required raw materials's of product shaping quantity too much or too little.
And fifthly, controlling the distance of the moving die 1 to move in the direction opposite to the direction of the second moving mechanism 1.1 through a sensor 1.4 according to the set compression parameters of the moving die 1, and adjusting the volume of the movable cavity to form a movable cavity B, wherein the movable cavity B is in a working state as shown in F4 in the attached drawing 5, and the distance of the second moving mechanism relative to the moving die 1 is L2.
Sixthly, injecting the liquid material into the movable cavity C at high speed and low pressure, wherein the distance between the second moving mechanism and the moving die is L3, see F5 in figure 6 in detail, the injection speed is 1000mm/s, and the injection pressure is 1800kgf/cm2。
And seventhly, moving the moving die 1 to reduce the volume of the movable cavity from large to small to the required volume of the product to form a movable cavity E, wherein the movable cavity E is shown in F6 in the attached drawing 7 in detail, and the distance between the second moving mechanism and the moving die is L4, L0 is more than L2, L3 is more than L4 and is more than or equal to L1.
Eighth, the product is cooled, solidified and formed, the movable mold moves in the direction opposite to the fixed mold, the movable mold cavity is opened, see F7 in fig. 8, a spring 1.6 springs the second moving mechanism 1.1 away from the movable mold 1, the second moving mechanism 1.1 moves relative to the movable mold 1 in the direction of the fixed mold 2, see F8 in fig. 8, and the product 4 is taken out of the movable mold.
The sequence of the steps of injecting the liquid material into the movable cavity C and the step seven of working the movable cavity C is that the seventh step is started in the process of injecting the liquid material into the movable cavity C in the step six, namely, after a certain amount of liquid raw materials are injected, the movable cavity starts to work, the movable die 1 starts to move and keeps injecting materials continuously, so that the raw materials required by product molding are sufficient, after raw materials required by the product are met, the material injection is stopped, the volume of the movable cavity is reduced to the required volume of the product, a movable cavity E is formed, the movable die 1 stops moving, at the moment, and pumping back redundant raw materials according to the required quantity of the product to the raw materials, wherein the volume of the movable cavity A, the volume of the movable cavity B, the volume of the movable cavity C, the volume of the movable cavity E and the like are greater than or equal to the volume of the movable cavity D.
The utility model discloses the mould with activity die cavity uses the working process of lid stock behind easy alternate segregation combined material production cell-phone as follows:
the mobile phone rear cover blank needs to have the performances of high hardness and high strength, the hardness is high, the using effects of wear resistance and few scratches of the mobile phone rear cover blank are solved, and the strength is high, the using effects of falling resistance and cracking resistance of the mobile phone rear cover blank are solved.
Polymethyl methacrylate (PMMA) is called as acrylic, acrylic or organic glass, has high transparency and brightness, good heat resistance, toughness, hardness and rigidity, and can meet the use effects of wear resistance and less scratches of the mobile phone rear cover blank when used as a mobile phone rear cover blank forming raw material.
Polycarbonate, PC for short, is a high molecular polymer containing carbonate groups in molecular chains, is a tough thermoplastic resin, has good impact resistance, and can meet the use effects of drop resistance and crack resistance of a mobile phone rear cover blank when used as a mobile phone rear cover blank forming raw material.
In order to meet the requirements of high hardness and high strength of the mobile phone rear cover blank, the mobile phone rear cover blank can be formed by using a PMMA + PC composite material, but the injection speed range is more than 500mm/s and the pressure range is 2800-3000kgf/cm in the traditional PMMA + PC composite material forming process2And the PMMA and the PC are easy to separate from each other due to high material injection speed and high pressure, so the forming difficulty is high, and the yield is low.
The utility model discloses the mould with activity die cavity can be shaping under the condition for traditional forming technology low-speed low pressure owing to use movable die cavity, because the speed of annotating the material is slower relatively, pressure is less relatively, PMMA and PC are difficult to the alternate segregation, and the shaping degree of difficulty diminishes, and the yield improves greatly.
The utility model discloses mould with activity die cavity uses and uses PMMA + PC combined material production cell-phone back lid stock process as follows:
drying the PMMA + PC composite material, conveying the PMMA + PC composite material to an injection molding machine, and converting the PMMA + PC composite material from a solid state to a liquid state.
In the second step, the movable mold 1 is moved toward the fixed mold 2, specifically, F1 in fig. 2, and mold closing is started.
Thirdly, when the insert combination contacts the fixed mold 2, a movable cavity A is formed by the movable mold 1, the fixed mold 2 and the insert combination 1.1.1, which is shown in detail as F2 in figure 3, wherein the movable cavity has the largest volume, and the maximum movable distance of the second moving mechanism 1.1 relative to the movable mold 1 is L0.
In the fourth step, the moving mold 1 continues to move towards the fixed mold 2 until the moving mold 1 is attached to the second moving mechanism 1.1, and a completely closed state is achieved, which is detailed in F3 in fig. 4, at this time, a movable cavity D is formed, the volume of the movable cavity D is the minimum, at this time, the distance between the second moving mechanism 1.1 and the moving mold 1 is L1, and L1 is 0, and the compression parameters of the moving mold 1 are set. The process is to correct the mold, let the injection molding machine sense the state of the minimum cavity of the mold, if not let the injection molding machine sense the correct state of the minimum cavity, will make the volume of feeding produce the error and lead to the required raw materials's of product shaping quantity too much or too little.
And fifthly, controlling the distance of the moving die 1 to move in the direction opposite to the direction of the second moving mechanism 1.1 through a sensor 1.4 according to the set compression parameters of the moving die 1, and adjusting the volume of the movable cavity to form a movable cavity B, wherein the movable cavity B is in a working state as shown in F4 in the attached drawing 5, and the distance of the second moving mechanism relative to the moving die is L2.
Sixthly, injecting the liquid material into the movable cavity C at a low speed and a low pressure, wherein the distance between the second moving mechanism and the moving mold is L3, see F5 in FIG. 6, the injection speed is 180-2In this example, the speed was 300mm/s and the pressure was 1800kgf/cm2。
And seventhly, moving the moving die 1 to reduce the volume of the movable cavity from large to small to the required volume of the product to form a movable cavity E, which is shown in F6 in the attached drawing 7 in detail, wherein the distance between the second moving mechanism 1.1 and the moving die 1 is L4, L0 is greater than L2, L3 is greater than L4 and is greater than or equal to L1.
Eighth, the product is cooled, solidified and formed, the movable mold 1 moves in the direction opposite to the fixed mold 2, the movable cavity is opened, see F7 in fig. 8 in detail, the spring 1.6 springs the second moving mechanism 1.1 away from the movable mold 1, the second moving mechanism 1.1 moves in the direction of the fixed mold 2 relative to the movable mold 1, see F8 in fig. 8 in detail, and the product 4 is taken out from the movable mold 1.
The sequence of the steps of injecting the liquid material into the movable cavity C and the step seven of working the movable cavity C is that the seventh step is started in the process of injecting the liquid material into the movable cavity C in the step six, namely, after a certain amount of liquid raw materials are injected, the movable cavity starts to work, the movable die 1 starts to move and keeps injecting materials continuously, so that the raw materials required by product molding are sufficient, after raw materials required by the product are met, the material injection is stopped, the volume of the movable cavity is reduced to the required volume of the product, a movable cavity E is formed, the movable die 1 stops moving, at the moment, and pumping back redundant raw materials according to the required quantity of the product to the raw materials, wherein the volume of the movable cavity A, the volume of the movable cavity B, the volume of the movable cavity C, the volume of the movable cavity E and the like are greater than or equal to the volume of the movable cavity D.
Compared with the prior art, the utility model discloses following beneficial effect has: in the movable cavity, the size of the movable cavity can be adjusted according to the requirement of a product, so that the volume of the movable cavity before the movable cavity stops compression is larger than the volume of the product, the flowing resistance of the liquid raw material in the movable cavity with larger volume can be reduced, the liquid raw material can flow easily, the product can be molded easily at low speed or low pressure, the product has good internal stress, attractive appearance, uniform thickness and difficult mutual separation of composite materials.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. A mould with a movable cavity comprises a movable mould and a fixed mould, wherein the movable mould is provided with a movable mould supporting device, the fixed die is provided with a fixed die supporting device, the movable die and the fixed die are matched with each other, the movable die is provided with a movable die core, the fixed die is provided with a fixed die core, it is characterized by also comprising a guide component, a water channel device and a positioning structure, wherein the movable die comprises a secondary moving mechanism and a limiting device, the second moving mechanism is movably connected with the moving die through the guide assembly and the limiting device, the mold core of the moving mold is positioned on the supporting device of the moving mold through the positioning structure, the mould core of the fixed mould is positioned on the supporting device of the fixed mould through the positioning structure, and the water channel device is distributed in the movable mould and the fixed mould.
2. The mold with the movable cavity according to claim 1, wherein: the secondary moving mechanism comprises a moving bearing device, an insert combination and a connecting piece, the insert combination is fixed on the moving bearing device through the connecting piece, the insert combination, the moving die core and the fixed die core form a movable die cavity, the exhaust device is arranged around the movable die cavity, and the insert combination is directly or indirectly positioned on the supporting device of the moving die through the positioning structure.
3. The mold having a movable cavity according to claim 2, wherein: the exhaust device comprises an air groove, exhaust gaps and an exhaust channel, the exhaust gaps are communicated with the air groove, the number of the exhaust gaps is two or more, and the size of each exhaust gap is set according to the difference of the positions of the molds where the exhaust gaps are located.
4. The mold having a movable cavity according to claim 3, wherein: the size of the exhaust gap is changed from the most proximal end of the feed inlet to the most distal end of the feed inlet, or the size of the exhaust gap is changed from the position where the mold is most easily molded to the position where the mold is most difficult to mold.
5. The mold with the movable cavity according to claim 1, wherein: the positioning structure comprises a sprue bush insert, a feeding port insert and a positioning pin, the sprue bush insert is installed at the central position of the fixed die through the positioning pin, and the feeding port insert is installed at the central position of the movable die through the positioning pin.
6. The mold having a movable cavity according to claim 2, wherein: the positioning structure comprises a sprue bush insert, a feeding port insert and a positioning pin, the sprue bush insert is installed at the central position of the fixed die through the positioning pin, and the feeding port insert is installed at the central position of the movable die through the positioning pin.
7. The mold having a movable cavity according to claim 3, wherein: the positioning structure comprises a sprue bush insert, a feeding port insert and a positioning pin, the sprue bush insert is installed at the central position of the fixed die through the positioning pin, and the feeding port insert is installed at the central position of the movable die through the positioning pin.
8. The mold with the movable cavity according to claim 4, wherein: the positioning structure comprises a sprue bush insert, a feeding port insert and a positioning pin, the sprue bush insert is installed at the central position of the fixed die through the positioning pin, and the feeding port insert is installed at the central position of the movable die through the positioning pin.
9. The mold having a movable cavity according to claim 8, wherein: the number of the movable cavities is one or more than one.
10. The mold having a movable cavity according to claim 9, wherein: the size of the exhaust gap is L, and L is more than or equal to 0.005mm and less than or equal to 0.05 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920808962.8U CN210121947U (en) | 2019-05-30 | 2019-05-30 | Mould with movable cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920808962.8U CN210121947U (en) | 2019-05-30 | 2019-05-30 | Mould with movable cavity |
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| Publication Number | Publication Date |
|---|---|
| CN210121947U true CN210121947U (en) | 2020-03-03 |
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| CN201920808962.8U Active CN210121947U (en) | 2019-05-30 | 2019-05-30 | Mould with movable cavity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126202A (en) * | 2019-05-30 | 2019-08-16 | 开平市盈光机电科技有限公司 | A kind of mold with active type chamber |
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2019
- 2019-05-30 CN CN201920808962.8U patent/CN210121947U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126202A (en) * | 2019-05-30 | 2019-08-16 | 开平市盈光机电科技有限公司 | A kind of mold with active type chamber |
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