CN210999761U - Mobile phone rear cover blank forming die with middle frame and movable cavity adjusted through spring - Google Patents
Mobile phone rear cover blank forming die with middle frame and movable cavity adjusted through spring Download PDFInfo
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- CN210999761U CN210999761U CN201920808908.3U CN201920808908U CN210999761U CN 210999761 U CN210999761 U CN 210999761U CN 201920808908 U CN201920808908 U CN 201920808908U CN 210999761 U CN210999761 U CN 210999761U
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Abstract
The utility model provides a lid stock forming die behind cell-phone that has center through spring regulation activity die cavity, its characterized in that: the movable mould core is provided with five forming surfaces, included angles between the four surrounding forming surfaces and the middle forming surface are larger than or equal to 90 degrees, the fixed mould core is provided with five forming surfaces, and included angles between the four surrounding forming surfaces and the middle forming surface are larger than or equal to 90 degrees. The utility model discloses a through the cell-phone back cover stock forming die who has the center of spring regulation activity die cavity owing to be equipped with the activity die cavity, can adjust the size of activity die cavity according to the demand of product, make the volume that the activity die cavity stopped before compressing be greater than the volume of product, the raw materials flows easily in great activity die cavity, the product is easy to be formed, and product internal stress is good, the outward appearance is beautiful, thickness is even, combined material is difficult for the reciprocal segregation; because the mobile phone rear cover and the mobile phone middle frame are integrated, the mobile phone rear cover and the mobile phone middle frame are excessively natural, the production procedures are reduced, and the cost is reduced.
Description
Technical Field
The utility model relates to a blank forming die especially relates to a lid blank forming die behind cell-phone that contains the center through spring adjustment 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 the defects of the prior art, the utility model aims to provide a mobile phone rear cover blank forming die with a middle frame, which adjusts a movable cavity through a spring, and can adjust the temperature of the corresponding part of the corresponding product of the die; 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; 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 achieve the above object, the utility model provides a mobile phone rear cover blank forming die with a middle frame through a spring adjusting movable cavity, which comprises a movable die and a fixed die, wherein the movable die is provided with a movable die supporting device, the fixed die is provided with a fixed die supporting device, the movable die and the fixed die are mutually matched, the movable die is provided with a movable die core, the fixed die is provided with a fixed die core, the fixed die further comprises a positioning structure, a guide assembly, a water channel device, a cooling material cavity and a positioning structure, the movable die comprises an elastic device, a second movable mechanism and a limiting device, the second movable mechanism passes through the guide assembly, the limiting device, the elastic device and the movable die, the die core of the movable die passes through the positioning structure to be positioned on the supporting device of the movable die, the die core of the fixed die passes through the positioning structure to be positioned on the supporting device of the fixed die, the water course device distributes remove in the mould with in the fixed mould, stop device will resilient means compression second time moving mechanism with between the strutting arrangement of removal mould, the removal mould 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 fixed mould 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 middle frame of the spring adjusting movable die cavity, the mobile phone rear cover blank forming die with the middle frame of the spring adjusting movable die cavity 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 die core and the fixed die core form a movable die cavity, the fixed die core and the insert combination form the cold material cavity, the exhaust device is arranged around the movable die cavity, the insert combination directly or indirectly passes through the positioning structure to be positioned on the moving die supporting device, the positioning structure is positioned at one side of the movable die cavity, the cold material cavity is positioned at the other side of the movable die cavity and is communicated with the movable die cavity, 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 around the fixed mold core and the four molding surfaces around the adjacent movable mold core is T4, the minimum 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 a spring regulation activity die cavity have lid stock forming die's improvement behind cell-phone of center, the utility model discloses a spring regulation activity die cavity have behind the cell-phone of center lid stock forming die exhaust apparatus includes gas tank, exhaust clearance and exhaust passage, the exhaust clearance with gas tank UNICOM, the exhaust clearance has two or more, 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 a spring adjustment activity die cavity have lid stock forming die's behind cell-phone of center improvement, the utility model discloses a spring adjustment activity die cavity have behind the cell-phone of center lid stock forming die the size in exhaust clearance changes in proper order perhaps from the feed inlet most proximal end of mould to the feed inlet most distal end of mould or the size in exhaust clearance changes in proper order from the easiest position of mould shaping to the most difficult position of mould shaping.
As the utility model discloses a spring adjustment activity die cavity have lid stock forming die's behind cell-phone of center improvement, the utility model discloses a spring adjustment activity die cavity have lid stock forming die behind cell-phone of center 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 die 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 a spring adjustment activity die cavity have lid stock forming die's behind cell-phone of center improvement, the utility model discloses a spring adjustment activity die cavity have lid stock forming die behind cell-phone of center the activity die cavity is one or more.
As the utility model discloses a spring adjustment activity die cavity have lid stock forming die's behind cell-phone of center improvement, the utility model discloses a spring adjustment activity die cavity have behind the cell-phone of center lid stock forming die exhaust clearance's size 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 a spring adjustment activity die cavity have lid stock forming die's behind cell-phone of center improvement, the utility model discloses a spring adjustment activity die cavity have behind the cell-phone of center lid stock forming die exhaust clearance's size is L ═ 0.025 mm.
Compared with the prior art, the utility model discloses a lid stock forming die behind cell-phone that has the center of spring regulation activity die cavity has following beneficial effect: the temperature of the corresponding part of the corresponding product of the die can be adjusted; 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; 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 the raw material processing schematic diagram of the preferred embodiment of the mobile phone rear cover blank forming die with the middle frame of the spring adjusting movable cavity of the utility model.
Fig. 2 is the schematic diagram of the mobile phone rear cover blank forming mold with the middle frame of the movable cavity adjusted by the spring according to the preferred embodiment of the invention before mold closing.
Fig. 3 is a sectional view of the movable cavity a formed by the spring adjusting the movable cavity according to the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame.
Fig. 4 is a sectional view of the movable cavity D according to the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame of the spring-regulated movable cavity of the present invention.
Fig. 5 is an enlarged schematic view of W in the movable cavity D for forming the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame of the movable cavity adjusted by the spring.
Fig. 6 is a sectional view of the movable cavity B formed by the spring adjusting the movable cavity according to the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame.
Fig. 7 is a sectional view of the movable cavity C formed by the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame of the spring-regulated movable cavity of the present invention.
Fig. 8 is a sectional view of the movable cavity E formed by the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame of the spring-regulated movable cavity of the present invention.
Fig. 9 is a sectional view of the mobile phone rear cover blank forming mold with the middle frame of the movable cavity adjusted by the spring according to the preferred embodiment of the present invention, which takes out the mobile phone rear cover blank including the middle frame.
Fig. 10 is a perspective view of the mobile phone rear cover blank including the middle frame according to the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame and the spring adjusting movable cavity of the present invention.
Fig. 11 is a perspective view of the movable mold core of the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame of the spring adjusting movable cavity of the utility model.
Fig. 12 is a perspective view of the fixed mold core of the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame of the movable cavity adjusted by the spring of the present invention.
Fig. 13 is a schematic view of the movable mold of the preferred embodiment of the mobile phone rear cover blank molding mold with the middle frame of the spring adjusting movable cavity of the present invention.
Fig. 14 is a schematic view of the fixed mold of the preferred embodiment of the mobile phone rear cover blank forming mold with the middle frame of the movable cavity adjusted by the spring of the present invention.
Detailed Description
The utility model discloses a lid stock forming die behind cell-phone that has the center of activity die cavity is adjusted to the spring is applicable to lid behind the production cell-phone.
Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14, the preferred embodiment and other embodiments of the mobile phone back cover blank forming mold with a middle frame for adjusting a movable cavity by a spring according to the present invention will be described in detail.
The utility model provides a mobile phone rear cover blank forming die with a middle frame through a spring adjusting movable cavity, which comprises a movable die 1 and a fixed die 2, wherein the movable die 1 is provided with a movable die supporting device 1.10, the fixed die 2 is provided with a fixed die supporting device 2.4, the movable die 1 and the fixed die 2 are mutually matched, the movable die 1 is provided with a movable die core 1.12, the fixed die 2 is provided with a fixed die core 2.1, the mobile phone rear cover blank forming die also comprises a guide component 3, a water channel device 5, a cold material cavity F and a positioning structure 6, the movable die 1 comprises an elastic device 1.6, a second movable mechanism 1.1 and a limiting device 1.2, the second movable mechanism 1.1 passes through the guide component 3, the limiting device 1.2, the elastic device 1.6 is movably connected with the movable die 1, the die core 1.12 of the movable die 1 is positioned on the movable die supporting device 1.10 through the positioning structure 6, the mold core 2.1 of the fixed mold 2 is positioned on the fixed mold supporting device 2.4 through the positioning structure 6, the water channel device 5 is distributed in the movable mold 1 and the fixed mold 2, the limiting device 1.2 compresses the elastic device 1.6 between the second moving mechanism 1.1 and the supporting device 1.10 of the movable mold 1, the movable mold core 1.12 is provided with five molding surfaces, the included angle between the four surrounding molding surfaces 1.12.1 and the middle molding surface 1.12.2 is larger than or equal to 90 degrees, the fixed mold core 2.1 is provided with five molding surfaces, and the included angle between the four surrounding molding surfaces 2.1.1 and the middle molding surface 2.1.2 is larger than or equal to 90 degrees.
In this embodiment, the mobile phone rear cover blank forming mold with a middle frame through the spring-regulated movable cavity of the present invention further includes an exhaust device (not labeled in the drawing), the second moving mechanism includes a moving carrier 1.1.2, an insert assembly 1.1.1 and a connecting member 1.1.3, the insert assembly 1.1.1 is fixed on the moving carrier 1.10 through the connecting member 1.1.3, the insert assembly 1.1.1, the movable mold core 1.12 and the fixed mold core 2.1 form a movable cavity, the exhaust device is disposed around the movable cavity, the insert assembly 1.1.1 directly or indirectly passes through the positioning structure 6 to be positioned on the movable mold supporting device 1.10, the positioning structure 6 is disposed on one side of the movable cavity, the cold material cavity F is disposed on the other side of the movable cavity and is communicated with the movable cavity, one or two cold material cavities F are provided, the maximum distance between the four molding surfaces 1.12.1 around the movable mold core 1.12 and the insert combination 1.1.1 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 1.12.1 around the adjacent movable mold core 1.12 is T4, the minimum distance between the movable mold core 1.12 and the fixed mold core 2.1 is T5, and T4 is T3 which is not less than T5.
In this embodiment, the utility model discloses a lid stock forming die behind cell-phone that has the center that the activity die cavity is adjusted to spring exhaust apparatus includes gas tank, exhaust clearance and exhaust passage (not mark out in the drawing), 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 6 and two present triangle-shaped, be close isosceles triangle or be close equilateral triangle's shape between the cold burden chamber F, cold burden chamber F is located fixed mould mold core 2.1 with between the mold insert combination 1.1.1, the cavity in cold burden chamber F mainly is located fixed mould mold core 2.1 perhaps in the mold insert combination 1.1.1.
In this embodiment, the utility model discloses a lid stock forming die behind cell-phone that has the center of activity die cavity is adjusted to the spring 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 most difficult position of mould shaping.
In this embodiment, the utility model discloses a lid stock forming die behind cell-phone that has the center of spring regulation movable die 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 is installed through locating pin 6.3 remove the central point of mould 1 and put.
In this embodiment, the utility model discloses a lid stock forming die behind cell-phone that has the center of activity die cavity is adjusted to the spring activity die cavity is two.
In other embodiments, the utility model discloses a there is the cell-phone back lid stock forming die of center of activity die cavity is adjusted to the spring activity die cavity be one.
In other embodiments, the utility model discloses a lid stock forming die behind cell-phone that has the center of activity die cavity is adjusted to the spring activity die cavity be more than two.
In this embodiment, the utility model discloses a what the movable die cavity was adjusted to the spring has the cell-phone back lid stock forming die of center the size of exhaust clearance is L ═ 0.025 mm.
In other embodiments, the utility model discloses a spring regulation activity die cavity have cell-phone back lid stock forming die of center the size of exhaust clearance is L, and 0.005mm is less than or equal to L is less than or equal to 0.05 mm.
The utility model discloses a lid stock forming die uses the working process of lid behind easy alternate segregation combined material production cell-phone as follows behind the cell-phone that has the center of spring regulation activity die cavity:
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 hardness of the rear cover of the mobile phone at the same timeThe mobile phone rear cover has high performance and high strength, can be molded by using PMMA + PC composite material, but has the injection speed range of more than 500mm/s and the pressure range of 2800 and 3000kgf/cm in the traditional PMMA + PC composite material molding 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 a lid stock forming die behind cell-phone that has the center of activity die cavity is adjusted to the spring can be for the shaping under the condition of traditional forming technology low-speed low pressure owing to use activity 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 a lid stock forming die behind the cell-phone that has the center of activity die cavity is adjusted to the spring uses and uses PMMA + PC combined material production cell-phone back lid process as follows:
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 1.12.1 around the movable mold core 1.12 is lower than the temperature of the middle molding surface 1.12.2 of the movable mold core 1.12, the temperature of the molding surface 1.12.1 around the fixed mold core 1.12 is lower than the temperature of the middle molding surface 1.12.2 of the fixed mold core 1.12, and the temperature of the insert combination 1.1.1 is lower than the temperature of the middle molding surface 1.12.2 of the movable mold core 1.12 or lower than the temperature of the middle molding surface 2.1.2 of the fixed mold core 2.1.
And thirdly, a second moving mechanism 1.1 is formed by the moving bearing device 1.1.2, the insert combination 1.1.1 and the spring or spring assembly 1.6, and the moving die 1 moves towards the fixed die 2 to start die assembly.
And fourthly, when the second moving mechanism 1.1 contacts the fixed mold 2, a movable cavity A is formed by a movable cavity formed by the moving mold 1, the fixed mold 2 and the second moving mechanism 1.1, and the cold material cavity F is formed by the fixed mold core 2.1 and the insert combination 1.1.1, wherein the movable cavity has the largest volume, meanwhile, the maximum movable distance of the second moving mechanism 1.1 relative to the moving mold 1 is L0, the maximum distance between the four molding surfaces 1.12.1 around the moving mold core 1.12 and the insert combination 1.1.1 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 1.12.1 around the adjacent moving mold core 1.12 is T4.
And fifthly, controlling the moving distance of the moving die to the direction opposite to the second moving mechanism 1.1 through a sensor 1.4 according to the set compression parameter of the moving die 1, adjusting the volume of the movable cavity to form a movable cavity B, and enabling the movable cavity B to be in a working state, wherein the distance between the second moving mechanism 1.1 and the moving die 1 is L2, and the second moving mechanism 1.1 is continuously attached to the fixed die 2 under the action of the spring or the spring assembly 1.6 to keep the movable cavity closed.
The sixth step is to inject the liquid material into the movable cavity C, the distance between the second moving mechanism and the moving mold is L3, the distance between the moving mold core 1.12 and the fixed mold core 2.1 is T5, T4 is T3 ≥ T5, the injection speed is 180-2In this example, the speed was 300mm/s and the pressure was 1800kgf/cm2。
And seventhly, moving the movable die 1, wherein the volume of the movable die cavity is reduced to the required volume of the product, so as to form a movable die cavity E, and the distance between the second moving mechanism and the movable die is L4, L0 & gt L2 & gt L3 & gt L4 & gt L1.
And step eight, cooling, solidifying and molding the product, wherein the movable die 1 moves in the direction opposite to the fixed die 2 to open the movable cavity, the spring or the spring assembly 1.6 springs the second moving mechanism 1.1 and the movable die 1 open, the second moving mechanism 1.1 moves towards the fixed die 2 relative to the movable die 1, and the product 4 is taken out of the movable die 1.
And a sixth step of injecting liquid materials into the movable cavity C, wherein the sequence of the two steps of injecting the liquid materials into the movable cavity C at the time when the distance between the second moving mechanism and the movable mold is L3 and working the movable cavity at the seventh step is that the liquid materials are injected into the movable cavity C at the sixth step, the seventh step is started in the process that the distance between the second moving mechanism and the movable mold is L3 at the time, namely after a certain amount of liquid raw materials are injected, the movable cavity starts to work, the movable mold 1 starts to move and continues to keep injecting materials, so that the raw materials required by product molding are ensured to be sufficient, after the raw materials required by the product are met, the injection is stopped, the volume of the movable cavity is reduced from large to the required volume of the product, the movable cavity E is formed, the movable mold 1 stops moving, at the moment, the redundant raw materials are pumped back according to the required amount of the product on the raw materials, and the volume of the movable cavity A is greater than the volume of the movable cavity B is greater than the volume of the movable cavity.
Compared with the prior art, the utility model discloses following beneficial effect has: the temperature of the corresponding part of the corresponding product of the die can be adjusted; 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; 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. The mobile phone rear cover blank forming die with the middle frame and capable of adjusting the movable cavity through the spring is characterized by comprising a movable die and a fixed die, wherein the movable die is provided with a movable die supporting device and 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, the movable die further comprises a guide assembly, a water channel device, a cold material cavity and a positioning structure, the movable die comprises an elastic device, a secondary moving mechanism and a limiting device, the secondary moving mechanism is movably connected with the movable die through the guide assembly, the limiting device and the elastic device, the die core of the movable die is positioned on the movable die supporting device through the positioning structure, and the die core of the fixed die is positioned on the fixed die supporting device through the positioning structure, the water course device distributes remove in the mould with in the fixed mould, stop device will resilient means compression second time moving mechanism with between the strutting arrangement of removal mould, the removal mould 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 fixed mould 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 middle frame and the movable cavity adjusted through the spring 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 fixed die core and the insert combination form the cold material cavity, the exhaust device is arranged around the movable cavity, the insert combination is directly or indirectly positioned on the moving die 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 forming surfaces around the moving die core and the insert combination is T3, and the maximum distance between the four forming surfaces of the fixed die core and the four forming surfaces around the adjacent moving die core is T4 The minimum distance between the movable mold core and the fixed mold core is T5, and T4 is T3 which is not less than T5.
3. The mobile phone rear cover blank forming die with the middle frame for adjusting the movable cavity through the spring 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 number of the exhaust gaps is two or more, the size of each exhaust gap is set according to the position of a die 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, and cavities of the cold material cavities are mainly located in the fixed die core or the insert combination.
4. The mobile phone rear cover blank forming die with the middle frame for adjusting the movable cavity through the spring 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 middle frame and the movable cavity adjusted through the spring 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 middle frame for adjusting the movable cavity through the spring 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 middle frame for adjusting the movable cavity through the spring 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 middle frame for adjusting the movable cavity through the spring 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 middle frame for adjusting the movable cavity through the spring as claimed in claim 8, wherein: the number of the movable cavities is one or more than one.
10. The mold for molding a cellular phone back cover blank with a middle frame, which has a movable cavity regulated by a spring as claimed in claim 9, wherein the size of the air-vent gap is L, 0.005mm ≤ L ≤ 0.08 mm.
11. The mold for molding the mobile phone back cover blank with the middle frame, which adjusts the movable cavity by the spring as claimed in claim 10, wherein the size of the exhaust gap is L-0.025 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920808908.3U CN210999761U (en) | 2019-05-30 | 2019-05-30 | Mobile phone rear cover blank forming die with middle frame and movable cavity adjusted through spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920808908.3U CN210999761U (en) | 2019-05-30 | 2019-05-30 | Mobile phone rear cover blank forming die with middle frame and movable cavity adjusted through spring |
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| CN210999761U true CN210999761U (en) | 2020-07-14 |
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| CN201920808908.3U Withdrawn - After Issue CN210999761U (en) | 2019-05-30 | 2019-05-30 | Mobile phone rear cover blank forming die with middle frame and movable cavity adjusted through spring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355944A (en) * | 2019-05-30 | 2019-10-22 | 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 adjusting active type chamber by spring |
-
2019
- 2019-05-30 CN CN201920808908.3U patent/CN210999761U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355944A (en) * | 2019-05-30 | 2019-10-22 | 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 adjusting active type chamber by spring |
| CN110355944B (en) * | 2019-05-30 | 2024-01-30 | 开平市盈光机电科技有限公司 | Mobile phone rear cover blank forming die with movable cavity adjusted through spring and comprising middle frame |
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