CN211165037U - Mobile phone rear cover blank forming die with hydraulic device and comprising middle frame - Google Patents
Mobile phone rear cover blank forming die with hydraulic device and comprising middle frame Download PDFInfo
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- CN211165037U CN211165037U CN201920806995.9U CN201920806995U CN211165037U CN 211165037 U CN211165037 U CN 211165037U CN 201920806995 U CN201920806995 U CN 201920806995U CN 211165037 U CN211165037 U CN 211165037U
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Abstract
The utility model provides a from lid stock forming die behind cell-phone from taking hydraulic means including center, it is including removing mould and fixed mould, it has five shaping faces to remove the mould mold core, and the contained angle between four shaping faces on every side and the middle shaping face is more than or equal to 90 degrees, the fixed mould mold core has five shaping faces, and the contained angle between four shaping faces on every side and the middle shaping face is more than or equal to 90 degrees, the utility model discloses a from lid stock forming die behind cell-phone including center of taking hydraulic means has improved the productivity effect of injection molding machine owing to be equipped with hydraulic means. The mobile phone rear cover and the mobile phone middle frame are integrated, so that the cost is reduced. Due to the fact that the cold material cavity is arranged, the cold material is prevented from influencing the quality of a formed product. Because the movable cavity is arranged, the volume of the movable cavity before the movable cavity stops compressing is larger than that of the product, the liquid raw material in the movable cavity flows uniformly and is easy to form, the product has good internal stress, beautiful appearance and uniform thickness, and the composite materials are not easy to separate from each other.
Description
Technical Field
The utility model relates to a blank forming die especially relates to a lid blank forming die behind cell-phone including center from taking hydraulic means.
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 the defects of the prior art, the utility model aims to provide a mobile phone rear cover blank forming die with a hydraulic device and a middle frame, which improves the production performance of an injection molding machine due to the arrangement of the hydraulic device; because the movable mould core and the fixed mould core are respectively provided with five forming surfaces, and the maximum distance between the four forming surfaces around the movable mould core and the insert combination is more than or equal to the minimum distance between the movable mould core and the fixed mould core, the mobile phone rear cover and the mobile phone middle frame are integrated, the transition is natural, the cost is reduced, and the appearance of the middle frame integrated mobile phone rear cover blank is more beautiful than that of a non-integrated mobile phone rear cover blank; because the cold material cavity is arranged, the cooled liquid raw material is easy to flow to the cold material cavity, and the cold material is prevented from influencing the quality of a formed product; the movable cavity is arranged, so that the volume of the movable cavity before compression is stopped is larger than that of a product, liquid raw materials in the movable cavity of the mobile phone rear cover and the middle frame outside the cold material cavity flow uniformly, the mobile phone rear cover and the middle frame are easy to mold 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.
In order to realize the above object, the utility model provides a from lid stock forming die behind cell-phone including center of taking hydraulic means, it is including removing mould, fixed mould and direction subassembly, 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 passes through direction subassembly is mutually supported, it is equipped with and removes the mould mold core to remove the mould, it includes secondary moving mechanism and stop device to remove the mould, still includes hydraulic means, connecting piece, guider, water course device, cold material chamber and location structure, it passes through to remove the mould mold core the connecting piece hydraulic means with remove mould swing joint, by hydraulic means the guider the removal mould core with the second moving mechanism is constituteed to the connecting piece, secondary moving mechanism passes through guider, Stop device with remove mould swing joint, the mold core that removes the mould passes through location structure fixes a position on the strutting arrangement, the mold core of fixed mould passes through location structure fixes a position on the strutting arrangement, the water course device distributes remove in the mould with in the fixed mould, it has five shaping faces to remove the mould core, and the contained angle between four shaping faces on every side and the middle shaping face is more than or equal to 90 degrees, the fixed mould mold core has five shaping faces, and the contained angle between four shaping faces on every side and the middle shaping face is more than or equal to 90 degrees.
As the improvement of the mobile phone rear cover blank forming die with the hydraulic device and the middle frame of the utility model, the mobile phone rear cover blank forming die with the hydraulic device and the middle frame of the utility model also comprises an exhaust device, the second 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 mold core and the fixed mold core form a movable cavity, the exhaust device is arranged around the movable cavity, the insert combination is directly or indirectly positioned on the supporting device through the positioning structure, the positioning structure is positioned at one side of the movable cavity, the cold material cavity is positioned at the other side of the movable cavity and is communicated with the movable cavity, one or two cold material cavities are provided, the maximum distance between the four molding surfaces around the movable mold core and the insert combination is T3, the maximum distance between the four molding surfaces of the fixed mold core and the four molding surfaces around the adjacent movable mold core is T4, the distance between the movable mold core and the fixed mold core is T5, and T4 is T3 which is not less than T5.
As the utility model discloses from lid stock forming die's improvement behind cell-phone from taking hydraulic means including the center, the utility model discloses from lid stock forming die behind cell-phone from taking hydraulic means including the center exhaust apparatus includes gas tank, exhaust clearance and exhaust passage, the exhaust clearance with gas tank UNICOM, the exhaust clearance divide into two or more than two, the size in each exhaust clearance basis the difference of exhaust clearance place mould position is set for, one location structure and two present triangle-shaped, be close isosceles triangle-shaped or be close equilateral triangle-shaped's shape between the cold burden chamber, the cold burden chamber is located the fixed mould mold core with between the mold insert combination, the cavity in cold burden chamber mainly is located the fixed mould mold core or in the mold insert combination.
As the utility model discloses from lid stock forming die's improvement behind the cell-phone of taking hydraulic means including the center, the utility model discloses from lid stock forming die behind the cell-phone of taking hydraulic means including the center the size in exhaust clearance changes in proper order perhaps from the feed inlet most near end of mould to the feed inlet most far end of mould the size in exhaust clearance changes in proper order from the easiest position of mould shaping to the position that mould shaping is the most difficult.
As the utility model discloses from lid stock forming die's improvement behind the cell-phone of taking hydraulic means including the center, the utility model discloses from lid stock forming die behind the cell-phone of taking hydraulic means including the center the location 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 from lid stock forming die's improvement behind the cell-phone that takes hydraulic means including the center, the utility model discloses from lid stock forming die behind the cell-phone that takes hydraulic means including the center the activity die cavity is one or more.
As the utility model discloses from lid stock forming die's improvement behind the cell-phone of taking hydraulic means including the center, the utility model discloses from lid stock forming die behind the cell-phone of taking hydraulic means including the center the size in exhaust clearance is L, and 0.005mm is less than or equal to L and is less than or equal to 0.08 mm.
As the utility model discloses from lid stock forming die's improvement behind the cell-phone of taking hydraulic means including the center, the utility model discloses from lid stock forming die behind the cell-phone of taking hydraulic means including the center the size in exhaust clearance 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 from lid stock forming die behind cell-phone including the center of taking hydraulic means has following beneficial effect: the production performance of the injection molding machine is improved due to the arrangement of the hydraulic device; because the movable mould core and the fixed mould core are respectively provided with five forming surfaces, and the maximum distance between the four forming surfaces around the movable mould core and the insert combination is more than or equal to the minimum distance between the movable mould core and the fixed mould core, the mobile phone rear cover and the mobile phone middle frame are integrated, the transition is natural, the cost is reduced, and the appearance of the middle frame integrated mobile phone rear cover blank is more beautiful than that of a non-integrated mobile phone rear cover blank; because the cold material cavity is arranged, the cooled liquid raw material is easy to flow to the cold material cavity, and the cold material is prevented from influencing the quality of a formed product; the movable cavity is arranged, so that the volume of the movable cavity before compression is stopped is larger than that of a product, liquid raw materials in the movable cavity of the mobile phone rear cover and the middle frame outside the cold material cavity flow uniformly, the mobile phone rear cover and the middle frame are easy to mold 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 structural view of a mobile phone rear cover blank forming mold with a hydraulic device and including a middle frame according to the preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a fixed mold in a preferred embodiment of the mobile phone rear cover blank forming mold with a hydraulic device and a middle frame of the invention.
Fig. 3 is a schematic structural diagram of a step one in the preferred embodiment of the mobile phone rear cover blank forming mold with a hydraulic device and a middle frame of the present invention.
Fig. 4 is a schematic structural diagram of step three in the preferred embodiment of the mobile phone rear cover blank forming mold with a hydraulic device and a middle frame of the present invention.
Fig. 5 is a schematic structural diagram of step four in the preferred embodiment of the mobile phone rear cover blank forming mold with hydraulic device and including the middle frame of the present invention.
Fig. 6 is an enlarged view of W in the fourth step of the preferred embodiment of the mobile phone rear cover blank forming mold with hydraulic device and including the middle frame of the present invention.
Fig. 7 is a schematic structural diagram of step five in the preferred embodiment of the mobile phone rear cover blank forming die with hydraulic device and including the middle frame of the present invention.
Fig. 8 is a schematic structural diagram of step six in the preferred embodiment of the mobile phone rear cover blank forming mold with hydraulic device and including the middle frame of the present invention.
Fig. 9 is a schematic structural diagram of step seven in the preferred embodiment of the mobile phone rear cover blank forming mold with hydraulic device and including the middle frame of the present invention.
Fig. 10 is a schematic structural diagram of step eight in the preferred embodiment of the mobile phone rear cover blank forming mold with hydraulic device and including the middle frame according to the present invention.
Fig. 11 is a transverse sectional view of a forming mold in a preferred embodiment of the mobile phone rear cover blank forming mold with a hydraulic device and including a middle frame of the present invention.
Fig. 12 is an enlarged view of H in a transverse cross-sectional view of a forming die in a preferred embodiment of a mobile phone rear cover blank forming die with a hydraulic device and including a middle frame according to the present invention.
Fig. 13 is a vertical sectional view of a forming mold in a preferred embodiment of the mobile phone rear cover blank forming mold with a hydraulic device and comprising a middle frame of the utility model.
Detailed Description
The utility model discloses lid stock forming die behind cell-phone including the center from taking hydraulic means is applicable to lid, cell-phone shell or optics class product behind 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.
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 and fig. 13, a preferred embodiment and other embodiments of the mobile phone rear cover blank forming mold with a hydraulic device and including a middle frame according to the present invention will be described in detail.
The utility model provides a from lid stock forming die behind cell-phone of taking hydraulic means including center, a serial communication port, it is including removing mould 1, fixed mould 2 and direction subassembly 3, it is equipped with and removes mould strutting arrangement 1.10 to remove mould 1, the fixed mould is equipped with 2 fixed mould strutting arrangement 2.4, remove mould 1 with fixed mould 2 passes through direction subassembly 3 is mutually supported, it is equipped with and removes mould core 1.4 to remove mould 1, be equipped with fixed mould core 2.1 on the fixed mould 2, it includes second time moving mechanism 1.1 and stop device 1.2 to remove mould 1, still includes hydraulic means 1.1.1, connecting piece 1.1.3, guider 1.1.4, water course device 5, cold material chamber F and location structure 6, it passes through to remove mould 1 core connecting piece 1.1.3 hydraulic means 1.1.1 with remove mould 1 swing joint, by hydraulic means 1.1.1.1.1 the guider 1.1.4, The movable die 1 core and the connecting piece 1.1.3 form a second moving mechanism 1.1, the second moving mechanism 1.1 is movably connected with the movable die 1 through the guide device 1.1.4 and the limiting device 1.2, the die core 1.4 of the movable die 1 is positioned on the supporting device 1.10 through the positioning structure 6, the die core 2.1 of the fixed die 2 is positioned on the supporting device 2.4 through the positioning structure 6, the water channel devices 5 are distributed in the movable die 1 and the fixed die 2, the die core 1.4 of the movable die 1 is provided with five forming surfaces, included angles between four surrounding forming surfaces 1.4.1 and the middle forming surface 1.4.2 are larger than or equal to 90 degrees, the die core 2.1 of the fixed die 2 is provided with five forming surfaces, and included angles between four surrounding forming surfaces 2.1.1 and the middle forming surface 2.1.2 are larger than or equal to 90 degrees.
In this embodiment, the mobile phone rear cover blank forming mold with hydraulic device and including middle frame of the present invention further includes an exhaust device (not labeled in the drawing), the second moving mechanism 1.1 includes the hydraulic device 1.1.1, the guiding device 1.1.4, the moving mold core 1.4 and the connecting piece 1.1.3 are fixed on the moving carrier 1.10, the insert assembly 9, the moving mold core 1.4 and the fixed mold 2 core 2.1 form a movable mold cavity, the exhaust device is disposed around the movable mold cavity, the insert assembly 9 is directly or indirectly positioned on the supporting device through the positioning structure 6, the positioning structure 6 is located on one side of the movable mold cavity, the cold material cavity F is located on the other side of the movable mold cavity and is communicated with the movable mold cavity, the cold material cavity F has one or two, the maximum distance between the four forming surfaces 1.4.1 around the moving mold core 1.4 and the insert assembly 9 is T3, the maximum distance between the four molding surfaces 2.1.1 of the fixed mold core 2.1 and the four molding surfaces 1.4.1 around the adjacent movable mold core 1.4 is T4, the distance between the movable mold core 1.4 and the fixed mold core 2.1 is T5, and T4 is T3 or more and T5.
In this embodiment, the exhaust device (not labeled in the drawings) of the mobile phone rear cover blank forming mold with the hydraulic device and the middle frame of the utility model comprises an air groove (not labeled in the drawings), an exhaust gap (not labeled in the drawings) and an exhaust channel (not labeled in the drawings), the exhaust gap is communicated with the air groove and divided into two or more than two, the size of each exhaust gap is set according to the position of the mold where the exhaust gap is located, one positioning structure 6.2 and two cold material cavities F are in the shape of a triangle, an isosceles triangle or an equilateral triangle, the cold material cavity is positioned between the fixed mold 2 mold core and the insert combination 9, and the cavity of the cold material cavity is mainly positioned in the fixed mold 2 mold core or the insert combination 9.
In this embodiment, the utility model discloses from lid stock forming die behind cell-phone from taking hydraulic means including the center the size of exhaust gap changes in proper order or from the most proximal end of the feed inlet from the mould to the most distal end of the feed inlet from the mould the size of exhaust gap changes in proper order from the easiest position of mould shaping to the position that mould shaping is the hardest.
In this embodiment, the utility model discloses from lid stock forming die behind cell-phone from taking hydraulic means including the center 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 is installed through locating pin 6.3 remove the central point of mould 1 and put.
In this embodiment, the utility model discloses from lid stock forming die behind cell-phone including the center of taking hydraulic means the activity die cavity is two.
In other embodiments, the utility model discloses from cell-phone back cover stock forming die who takes hydraulic means including the center movable die cavity is one.
In other embodiments, the utility model discloses from the cell-phone back cover stock forming die who takes hydraulic means including the center the activity die cavity is more than two.
In this embodiment, the utility model discloses from lid stock forming die behind cell-phone including the center of taking hydraulic means the size of exhaust clearance is L, and 0.005mm is less than or equal to L and is less than or equal to 0.05 mm.
In other embodiments, the size of the exhaust gap of the mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame is L, and 0.005mm is less than or equal to L is less than or equal to 0.08 mm.
The utility model discloses lid stock forming die uses the working process of lid behind easy looks mutual separation combined material production cell-phone as follows behind the cell-phone that includes the center from taking hydraulic means:
the mobile phone rear cover needs to have the performances of high hardness and high strength, the hardness is high, the using effect that the mobile phone rear cover is wear-resistant and has few scratches is solved, and the strength is high, and the using effect that the mobile phone rear cover is drop-resistant and crack-resistant is 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 rear cover of the mobile phone when used as a molding raw material of the rear cover of the mobile phone.
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 the rear cover of the mobile phone when used as a forming raw material of the rear cover of the mobile phone.
In order to meet the requirements of high hardness and high strength of the mobile phone rear cover, the mobile phone rear cover 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 from lid stock forming die behind cell-phone including center of taking hydraulic means can be for the shaping under the condition of 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 lid stock forming die uses behind the cell-phone that uses PMMA + PC combined material production cell-phone as follows after from taking hydraulic means's cell-phone including the center:
firstly, 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.
And secondly, adjusting the temperature of the corresponding part of the corresponding product of the mold to achieve the optimal molding condition of the mobile phone rear cover blank of the middle frame, wherein the temperature of the molding surface 1.4.1 around the movable mold core 1.4 is lower than the temperature of the middle molding surface 1.4.2 of the movable mold core 1.4, the temperature of the molding surface 2.1.1 around the fixed mold core 2.1 is lower than the temperature of the middle molding surface 2.1.2 of the fixed mold core 2.1, and the temperature of the insert combination 9 is lower than the temperature of the middle molding surface 1.4.2 of the movable mold core 1.4 or lower than the temperature of the middle molding surface 2.1.2 of the fixed mold core 2.1.
In the third step, the movable mold 1 is moved toward the fixed mold 2 to start mold clamping.
And fourthly, a movable cavity A is formed by the fixed mold 2, the insert combination 9 and the second moving mechanism 1.1, the fixed mold core 2.1 and the insert combination 9 form the cold material cavity F, the volume of the movable cavity is the largest at the moment, the maximum distance between the four molding surfaces 1.4.1 around the movable mold core 1.4 and the insert combination 9 is T3, and the maximum distance between the four molding surfaces 2.1.1 of the fixed mold core 2.1 and the four molding surfaces 1.4.1 around the adjacent movable mold core 1.4 is T4.
(5) Injecting liquid raw materials into the movable cavity A, starting hydraulic device 1.1.1, and starting compression, wherein the movable cavity C has a feeding speed of 300mm/s and a feeding pressure of 1800kgf/cm2。
(6) The volume of the movable cavity is reduced to the required volume of the mobile phone rear cover blank including the middle frame, a movable cavity E is formed, the distance between the movable mold core 1.4 and the fixed mold core 2.1 is T5, and T4 is equal to or larger than T5 when T3 is equal to or larger than T5.
(7) And cooling and forming the product, retreating the movable mold 1, retreating the second movable mechanism 1.1, opening the mold and taking out the product.
(8) The movable mould core 1.4 retreats under the action of a spring, a pneumatic or an electric device 10, and the hydraulic device 1.1.1 restores to the original position.
The volume of the movable cavity A is larger than that of the movable cavity C and larger than that of the movable cavity E.
Compared with the prior art, the utility model discloses following beneficial effect has: the production performance of the injection molding machine is improved due to the arrangement of the hydraulic device; because the movable mould core and the fixed mould core are respectively provided with five forming surfaces, and the maximum distance between the four forming surfaces around the movable mould core and the insert combination is more than or equal to the minimum distance between the movable mould core and the fixed mould core, the mobile phone rear cover and the mobile phone middle frame are integrated, the transition is natural, the cost is reduced, and the appearance of the middle frame integrated mobile phone rear cover blank is more beautiful than that of a non-integrated mobile phone rear cover blank; because the cold material cavity is arranged, the cooled liquid raw material is easy to flow to the cold material cavity, and the cold material is prevented from influencing the quality of a formed product; the movable cavity is arranged, so that the volume of the movable cavity before compression is stopped is larger than that of a product, liquid raw materials in the movable cavity of the mobile phone rear cover and the middle frame outside the cold material cavity flow uniformly, the mobile phone rear cover and the middle frame are easy to mold 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.
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 (11)
1. A mobile phone rear cover blank forming die with a hydraulic device and comprising a middle frame is characterized by comprising a moving die, a fixed die and a guide assembly, wherein the moving die is provided with a moving die supporting device, the fixed die is provided with a fixed die supporting device, the moving die and the fixed die are matched with each other through the guide assembly, the moving die is provided with a moving die core, the moving die comprises a secondary moving mechanism and a limiting device, the mobile phone rear cover blank forming die further comprises a hydraulic device, a connecting piece, a guiding device, a water channel device, a cold material cavity and a positioning structure, the moving die core is movably connected with the moving die through the connecting piece and the hydraulic device, the secondary moving mechanism is composed of the hydraulic device, the guiding device, the moving die core and the connecting piece, and the secondary moving mechanism is movably connected with the moving die through the guiding device and the limiting device, the mold core that removes the mould passes through location structure fixes a position on the strutting arrangement, the mold core of fixed mould passes through location structure fixes a position on the strutting arrangement, the water course device distributes remove in the mould with in the fixed mould, it has five shaping faces to remove the mould core, and the contained angle between four shaping faces on every side and the middle shaping face is more than or equal to 90 degrees, the fixed mould mold core has five shaping faces, and the contained angle between four shaping faces on every side and the middle shaping face is more than or equal to 90 degrees.
2. The mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame as claimed in 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 cavity, the exhaust device is arranged around the movable cavity, the insert combination is directly or indirectly positioned on the supporting device through the positioning structure, the positioning structure is positioned on one side of the movable cavity, the cold material cavity is positioned on the other side of the movable cavity and is communicated with the movable cavity, one or two cold material cavities are arranged, the maximum distance between four molding surfaces around the moving die core and the insert combination is T3, and the maximum distance between the four molding surfaces around the fixed die core and the four molding surfaces around the adjacent moving die core is T4, the distance between the movable mould core and the fixed mould core is T5, and T4 is T3 which is not less than T5.
3. The mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame as claimed in 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 exhaust gaps are divided into two or more than two, the size of each exhaust gap is set according to the position of a mold where the exhaust gap is located, a positioning structure and two cold material cavities present a shape of a triangle, a shape close to an isosceles triangle or a shape close to an equilateral triangle, the cold material cavities are located between the fixed mold core and the insert combination, and the cavities of the cold material cavities are mainly located in the fixed mold core or the insert combination.
4. The mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame as claimed in 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 mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame as claimed in 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 mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame as claimed in 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 mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame as claimed in 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 mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame as claimed in 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 mobile phone rear cover blank forming die with the hydraulic device and comprising the middle frame as claimed in claim 8, wherein: the number of the movable cavities is one or more than one.
10. The forming mold for mobile phone rear cover blank with hydraulic device and comprising middle frame as claimed in claim 9, wherein the size of the exhaust gap is L, 0.005mm ≤ L ≤ 0.08 mm.
11. The die for forming the mobile phone rear cover blank with the hydraulic device and the middle frame as claimed in claim 10, wherein the size of the exhaust gap is L, 0.005 mm-L mm-0.05 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920806995.9U CN211165037U (en) | 2019-05-30 | 2019-05-30 | Mobile phone rear cover blank forming die with hydraulic device and comprising middle frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920806995.9U CN211165037U (en) | 2019-05-30 | 2019-05-30 | Mobile phone rear cover blank forming die with hydraulic device and comprising middle frame |
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| Publication Number | Publication Date |
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| CN211165037U true CN211165037U (en) | 2020-08-04 |
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| CN201920806995.9U Active CN211165037U (en) | 2019-05-30 | 2019-05-30 | Mobile phone rear cover blank forming die with hydraulic device and comprising middle frame |
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| CN (1) | CN211165037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126204A (en) * | 2019-05-30 | 2019-08-16 | 开平市盈光机电科技有限公司 | A kind of cell phone rear cover embryo material molding die including center of included hydraulic device |
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2019
- 2019-05-30 CN CN201920806995.9U patent/CN211165037U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126204A (en) * | 2019-05-30 | 2019-08-16 | 开平市盈光机电科技有限公司 | A kind of cell phone rear cover embryo material molding die including center of included hydraulic device |
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