CN110126204A - A kind of cell phone rear cover embryo material molding die including center of included hydraulic device - Google Patents
A kind of cell phone rear cover embryo material molding die including center of included hydraulic device Download PDFInfo
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- CN110126204A CN110126204A CN201910475406.8A CN201910475406A CN110126204A CN 110126204 A CN110126204 A CN 110126204A CN 201910475406 A CN201910475406 A CN 201910475406A CN 110126204 A CN110126204 A CN 110126204A
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- 238000000465 moulding Methods 0.000 title claims abstract description 66
- 239000000463 material Substances 0.000 title claims abstract description 43
- 210000001161 mammalian embryo Anatomy 0.000 title claims 12
- 239000002131 composite material Substances 0.000 abstract description 13
- 238000001746 injection moulding Methods 0.000 abstract description 10
- 239000002994 raw material Substances 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 5
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 12
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- 238000010586 diagram Methods 0.000 description 9
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 239000004417 polycarbonate Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
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- 239000011344 liquid material Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012994 photoredox catalyst Substances 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C2045/2697—Deformed geometry of the cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
- B29C2045/363—Moulds having means for locating or centering cores using a movable core or core part
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
本发明提供一种自带液压装置的包括中框的手机后盖胚料成型模具，其包括移动模和固定模，所述移动模模芯有五个成型面，周围的四个成型面与中间的成型面之间的夹角大于或者等于90度，所述固定模模芯有五个成型面，周围的四个成型面与中间的成型面之间的夹角大于或者等于90度，本发明的自带液压装置的包括中框的手机后盖胚料成型模具由于设有液压装置，提高了注塑机的生产性能；手机后盖和手机中框为一体式，降低成本；由于设有冷料腔，避免冷料影响成型产品的质量；由于设有活动型腔，使活动型腔停止压缩前的容积大于产品的体积，活动型腔内的液态原料流动均匀，容易成型，而且产品内应力好、外观漂亮、厚度均匀、复合材料不易相互分离。
The invention provides a mobile phone back cover blank forming mold including a middle frame with a hydraulic device, which includes a movable mold and a fixed mold. The movable mold core has five molding surfaces, and the surrounding four molding surfaces are connected The included angle between the molding surfaces is greater than or equal to 90 degrees, the fixed mold core has five molding surfaces, and the included angle between the four surrounding molding surfaces and the middle molding surface is greater than or equal to 90 degrees, the present invention The mobile phone back cover blank molding mold with its own hydraulic device including the middle frame improves the production performance of the injection molding machine due to the hydraulic device; the mobile phone back cover and the mobile phone middle frame are integrated to reduce costs; due to the cold material Cavity to prevent cold material from affecting the quality of the molded product; due to the movable cavity, the volume before the compression of the movable cavity is larger than the volume of the product, the liquid raw material in the movable cavity flows evenly, easy to form, and the internal stress of the product is good , Beautiful appearance, uniform thickness, composite materials are not easy to separate from each other.
Description
技术领域technical field
本发明涉及一种胚料成型模具，尤其涉及一种自带液压装置的包括中框的手机后盖胚料成型模具。The invention relates to a blank forming die, in particular to a mobile phone back cover blank forming die with a hydraulic device and a middle frame.
背景技术Background technique
注塑模具是一种生产塑胶制品的工具，也是赋予塑胶制品完整结构和精确尺寸的工具。注塑成型是批量生产某些形状复杂部件时用到的一种加工方法。具体指将受热融化的塑料由注塑机高压射入模腔，经冷却固化后，得到成形品。Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted plastic into the mold cavity under high pressure from the injection molding machine, and after cooling and solidifying, a molded product is obtained.
注塑模具由动模和定模两部分组成，动模安装在注射成型机的移动模板上，定模安装在注射成型机的固定模板上，都是动模和定模组成固定型腔，型腔大小不可以改变。在注射成型时动模与定模闭合构成浇注系统和型腔，开模时动模和定模分离以便取出塑料制品。为了减少繁重的模具设计和制造工作量，注塑模大多采用了标准模架。The injection mold consists of two parts, the movable mold and the fixed mold. The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. Both the movable mold and the fixed mold form a fixed cavity. Size cannot be changed. During injection molding, the movable mold and the fixed mold are closed to form the gating system and the cavity, and the movable mold and the fixed mold are separated to take out the plastic product when the mold is opened. In order to reduce the heavy workload of mold design and manufacturing, most injection molds use standard mold bases.
目前，模具行业内的产品成型的模具都采用的是往固定型腔内注胶，所述固定型腔容积的大小与产品的体积大小相同，在成型的过程中固定型腔偏小导致原料流动阻力大，不容易成型，为了达到产品成型必须加大注塑压力和射胶速度，这样导致所成型产品的内应力大，外观不好、厚度不均匀、复合材料易分离，从而使产品质量很差、良率低。At present, the molds for product molding in the mold industry all use glue injection into the fixed cavity. The volume of the fixed cavity is the same as the volume of the product. During the molding process, the fixed cavity is too small to cause the flow of raw materials. The resistance is large, and it is not easy to form. In order to achieve product forming, the injection pressure and injection speed must be increased, which leads to large internal stress of the formed product, poor appearance, uneven thickness, and easy separation of composite materials, resulting in poor product quality. , Low yield.
发明内容Contents of the invention
基于现有技术的不足，本发明创造的目的在于提供一种自带液压装置的包括中框的手机后盖胚料成型模具，由于设有液压装置，提高了注塑机的生产性能；由于移动模模芯和固定模模芯均设有五个成型面，并且移动模模芯周围的四个成型面与镶件组合之间的最大距离≥移动模模芯和所述固定模模芯之间的最小距离，使手机后盖和手机中框为一体式，过度自然，降低成本，并且中框一体式手机后盖胚料外观比非一体式的漂亮；由于设有冷料腔，冷却的液态原料容易流动至冷料腔，避免冷料影响成型产品的质量；由于设有活动型腔，使活动型腔停止压缩前的容积大于产品的体积，冷料腔以外的成型手机后盖及其中框的活动型腔内的液态原料流动均匀，手机后盖及其中框在低速或低压下容易成型，而且产品内应力好、外观漂亮、厚度均匀、复合材料不易相互分离。Based on the deficiencies of the prior art, the purpose of the present invention is to provide a mobile phone back cover blank forming mold including a middle frame with its own hydraulic device. Because the hydraulic device is provided, the production performance of the injection molding machine is improved; Both the mold core and the fixed mold core are provided with five molding surfaces, and the maximum distance between the four molding surfaces around the movable mold core and the insert combination ≥ the distance between the movable mold core and the fixed mold core The minimum distance makes the back cover of the mobile phone and the middle frame of the mobile phone integrated, which is too natural and reduces the cost, and the appearance of the blank material of the middle frame integrated mobile phone back cover is more beautiful than that of the non-integrated one; due to the cold material cavity, the cooled liquid raw material It is easy to flow to the cold material cavity to prevent the cold material from affecting the quality of the molded product; because of the movable cavity, the volume of the movable cavity before the compression is stopped is larger than the volume of the product, and the rear cover and the middle frame of the molded mobile phone outside the cold material cavity The liquid material in the movable cavity flows evenly, and the back cover and middle frame of the mobile phone are easy to form under low speed or low pressure, and the product has good internal stress, beautiful appearance, uniform thickness, and the composite materials are not easy to separate from each other.
为了实现上述目的，本发明提供了一种自带液压装置的包括中框的手机后盖胚料成型模具，其包括移动模和固定模，所述移动模设有移动模支撑装置，所述固定模设有固定模支撑装置，所述移动模和所述固定模相互配合，所述移动模设有移动模模芯，所述固定模上设有固定模模芯，所述移动模包括第二次移动机构和限位装置，还包括液压装置、连接件、导向组件、水道装置、冷料腔和定位结构，所述移动模芯通过所述连接件、所述液压装置与所述移动模活动连接，由所述液压装置、所述导向装置、所述移动模芯和所述连接件组成第二次移动机构，所述第二次移动机构通过所述导向组件、所述限位装置与所述移动模活动连接，所述移动模的模芯通过所述定位结构定位在所述支撑装置上，所述固定模的模芯通过所述定位结构定位在所述支撑装置上，所述水道装置分布在所述移动模内和所述固定模内，所述移动模模芯有五个成型面，周围的四个成型面与中间的成型面之间的夹角大于或者等于90度，所述固定模模芯有五个成型面，周围的四个成型面与中间的成型面之间的夹角大于或者等于90度。In order to achieve the above object, the present invention provides a mobile phone back cover blank forming mold including a middle frame with a hydraulic device, which includes a movable mold and a fixed mold, the movable mold is provided with a movable mold supporting device, and the fixed mold The mold is provided with a fixed mold supporting device, the movable mold and the fixed mold cooperate with each other, the movable mold is provided with a movable mold core, the fixed mold is provided with a fixed mold core, and the movable mold includes a second The secondary moving mechanism and the limit device also include a hydraulic device, a connecting piece, a guide assembly, a waterway device, a cold material cavity and a positioning structure, and the moving mold core moves with the moving mold through the connecting piece, the hydraulic device connection, the hydraulic device, the guiding device, the moving core and the connecting piece form a second moving mechanism, and the second moving mechanism passes through the guiding assembly, the limiting device and the The mobile mold is movably connected, the mold core of the mobile mold is positioned on the support device through the positioning structure, the mold core of the fixed mold is positioned on the support device through the positioning structure, and the water channel device Distributed in the moving mold and the fixed mold, the moving mold core has five molding surfaces, the angle between the four surrounding molding surfaces and the middle molding surface is greater than or equal to 90 degrees, the The fixed mold core has five molding surfaces, and the included angles between the four surrounding molding surfaces and the middle molding surface are greater than or equal to 90 degrees.
作为本发明自带液压装置的包括中框的手机后盖胚料成型模具的改进，本发明自带液压装置的包括中框的手机后盖胚料成型模具还包括排气装置，所述第二次移动机构包括移动承载装置、镶件组合和连接件，所述镶件组合通过所述连接件固定在所述移动承载装置上，所述镶件组合、所述移动模模芯和所述固定模模芯组成活动型腔，所述排气装置设在所述活动型腔周围，所述镶件组合直接或者间接地通过所述定位结构定位在所述支撑装置上，所述定位结构位于所述活动型腔的一侧，所述冷料腔位于所述活动型腔的另一侧并与所述活动型腔连通，所述冷料腔有一个或两个，所述移动模模芯周围的四个成型面与镶件组合之间的最大距离为T3,固定模模芯四个成型面与相邻的移动模模芯周围的四个成型面之间的最大距离为T4,移动模模芯与固定模模芯之间的距离为T5，T4＝T3≥T5。As the improvement of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention, the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention also includes an exhaust device, and the second The secondary moving mechanism includes a mobile carrying device, an insert assembly and a connecting piece, the insert assembly is fixed on the mobile carrying device through the connecting piece, the insert assembly, the moving mold core and the fixed The mold core forms a movable cavity, the exhaust device is arranged around the movable cavity, and the insert assembly is directly or indirectly positioned on the support device through the positioning structure, and the positioning structure is located on the One side of the active cavity, the cold cavity is located on the other side of the active cavity and communicated with the active cavity, there are one or two cold cavity, around the movable mold core The maximum distance between the four molding surfaces 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 moving mold core is T4, and the moving mold core The distance between the core and the core of the fixed mold is T5, T4=T3≥T5.
作为本发明自带液压装置的包括中框的手机后盖胚料成型模具的改进，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述排气装置包括气槽、排气间隙和排气通道，所述排气间隙与所述气槽联通，所述排气间隙分为两个或者两个以上，所述每一个排气间隙的大小根据所述排气间隙所在模具位置的不同来设定，一个所述定位结构与两个所述冷料腔之间呈现三角形、接近等腰三角形或者接近等边三角形的形状，所述冷料腔位于所述固定模模芯与所述镶件组合之间，所述冷料腔的腔体主要位于所述固定模模芯或者所述镶组合件内。As the improvement of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention, the exhaust device of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention includes an air groove, Exhaust gap and exhaust channel, the exhaust gap communicates with the air groove, the exhaust gap is divided into two or more than two, and the size of each exhaust gap depends on the location of the exhaust gap Depending on the position of the mold, one of the positioning structures and the two cold material cavities are in the shape of a triangle, an isosceles triangle or an equilateral triangle, and the cold material cavity is located in the core of the fixed mold. Between the assembly of the insert, the cavity of the cold cavity is mainly located in the core of the fixed mold or the assembly of inserts.
作为本发明自带液压装置的包括中框的手机后盖胚料成型模具的改进，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述排气间隙的大小从离模具的进料口最近端到离模具的进料口最远端依次变化或者所述排气间隙的大小从模具成型最容易的位置到模具成型最难的位置依次变化。As the improvement of the mobile phone back cover blank forming mold including the middle frame with hydraulic device in the present invention, the size of the exhaust gap of the mobile phone back cover blank forming die including the middle frame in the present invention is changed from The nearest end of the feed inlet of the mold is sequentially changed to the farthest end from the feed inlet of the mold, or the size of the exhaust gap is sequentially changed from the easiest position of the mold to the most difficult position of the mold.
作为本发明自带液压装置的包括中框的手机后盖胚料成型模具的改进，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述定位包括唧嘴镶件、进料口镶件和定位销，所述唧嘴镶件通过定位销安装在所述固定模的中心位置，所述进料口镶件通过定位销安装在所述移动模的中心位置。As the improvement of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention, the positioning of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention includes nozzle inserts, A feed inlet insert and a positioning pin, the nozzle insert is installed at the center of the fixed mold through the positioning pin, and the feed inlet insert is installed at the center of the movable mold through the positioning pin.
作为本发明自带液压装置的包括中框的手机后盖胚料成型模具的改进，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述活动型腔是一个或者一个以上。As the improvement of the mobile phone back cover blank forming mold including the middle frame with hydraulic device in the present invention, the movable cavity of the mobile phone back cover blank forming mold including the middle frame in the present invention is one or one above.
作为本发明自带液压装置的包括中框的手机后盖胚料成型模具的改进，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述排气间隙的大小为L，0.005mm≤L≤0.08mm。As the improvement of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention, the size of the exhaust gap of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention is L , 0.005mm≤L≤0.08mm.
作为本发明自带液压装置的包括中框的手机后盖胚料成型模具的改进，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述排气间隙的大小为L，0.005mm≤L≤0.05mm。As the improvement of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention, the size of the exhaust gap of the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention is L , 0.005mm≤L≤0.05mm.
与现有技术相比较，本发明自带液压装置的包括中框的手机后盖胚料成型模具具有以下有益效果：由于设有液压装置，提高了注塑机的生产性能；由于移动模模芯和固定模模芯均设有五个成型面，并且移动模模芯周围的四个成型面与镶件组合之间的最大距离≥移动模模芯和所述固定模模芯之间的最小距离，使手机后盖和手机中框为一体式，过度自然，降低成本，并且中框一体式手机后盖胚料外观比非一体式的漂亮；由于设有冷料腔，冷却的液态原料容易流动至冷料腔，避免冷料影响成型产品的质量；由于设有活动型腔，使活动型腔停止压缩前的容积大于产品的体积，冷料腔以外的成型手机后盖及其中框的活动型腔内的液态原料流动均匀，手机后盖及其中框在低速或低压下容易成型，而且产品内应力好、外观漂亮、厚度均匀、复合材料不易相互分离。Compared with the prior art, the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device has the following beneficial effects: due to the hydraulic device, the production performance of the injection molding machine is improved; due to the moving mold core and The fixed mold cores are all provided with five molding surfaces, and the maximum distance between the four molding surfaces around the movable mold core and the insert combination ≥ the minimum distance between the movable mold core and the fixed mold core, The back cover of the mobile phone and the middle frame of the mobile phone are integrated, which is more natural and reduces the cost, and the appearance of the blank material of the mobile phone back cover with the middle frame is more beautiful than that of the non-integrated one; because of the cold material cavity, the cooled liquid material is easy to flow to Cold cavity to prevent the cold material from affecting the quality of the molded product; due to the movable cavity, the volume of the movable cavity before the compression is stopped is larger than the volume of the product, and the movable cavity of the mobile phone back cover and the middle frame outside the cold cavity The liquid raw materials inside flow evenly, the back cover of the mobile phone and the middle frame are easy to form under low speed or low pressure, and the product has good internal stress, beautiful appearance, uniform thickness, and the composite materials are not easy to separate from each other.
附图说明Description of drawings
图1为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中移动模的结构示意图。Fig. 1 is a structural schematic diagram of a mobile mold in a preferred embodiment of a mobile phone back cover blank forming mold including a middle frame with a hydraulic device in the present invention.
图2为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中固定模的结构示意图。Fig. 2 is a structural schematic diagram of a fixed mold in a preferred embodiment of a mobile phone back cover blank forming mold including a middle frame with a hydraulic device in the present invention.
图3为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中步骤一的结构示意图。Fig. 3 is a structural schematic diagram of Step 1 in a preferred embodiment of a mobile phone back cover blank forming mold including a middle frame with a built-in hydraulic device according to the present invention.
图4为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中步骤三的结构示意图。Fig. 4 is a structural schematic diagram of Step 3 in a preferred embodiment of a mobile phone back cover blank forming mold including a middle frame with a built-in hydraulic device according to the present invention.
图5为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中步骤四的结构示意图。Fig. 5 is a structural schematic diagram of Step 4 in a preferred embodiment of the mobile phone back cover blank forming mold including a middle frame with a built-in hydraulic device in the present invention.
图6为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中步骤四中W的放大图。Fig. 6 is an enlarged view of W in Step 4 of the preferred embodiment of the mobile phone back cover blank material forming mold including the middle frame with its own hydraulic device according to the present invention.
图7为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中步骤五的结构示意图。Fig. 7 is a structural schematic diagram of Step 5 in a preferred embodiment of a mobile phone back cover blank forming mold including a middle frame with a built-in hydraulic device according to the present invention.
图8为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中步骤六的结构示意图。Fig. 8 is a structural schematic diagram of Step 6 in a preferred embodiment of the mobile phone back cover blank forming mold including a middle frame with a built-in hydraulic device according to the present invention.
图9为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中步骤七的结构示意图。Fig. 9 is a structural schematic diagram of Step 7 in a preferred embodiment of the mobile phone back cover blank forming mold including a middle frame with a built-in hydraulic device according to the present invention.
图10为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中步骤八的结构示意图。Fig. 10 is a structural schematic diagram of Step 8 in a preferred embodiment of the mobile phone back cover blank forming mold including a middle frame with its own hydraulic device according to the present invention.
图11为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中成型模具的横向剖面图。Fig. 11 is a transverse cross-sectional view of the molding die in the preferred embodiment of the blank molding die for the back cover of the mobile phone including the middle frame with its own hydraulic device in the present invention.
图12为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中成型模具的横向剖面图中H的放大图。Fig. 12 is an enlarged view of H in the transverse sectional view of the forming die in the preferred embodiment of the forming die for the mobile phone back cover blank including the middle frame with its own hydraulic device in the present invention.
图13为本发明自带液压装置的包括中框的手机后盖胚料成型模具优选实施例中成型模具的竖向剖面图。Fig. 13 is a vertical sectional view of the molding die in the preferred embodiment of the blank molding die for the back cover of the mobile phone including the middle frame with its own hydraulic device in the present invention.
具体实施方式Detailed ways
本发明自带液压装置的包括中框的手机后盖胚料成型模具适用于各种包括中框的手机后盖产品，使用的材料是高粘度材料或者低粘度材料，不容易相互分离的复合材料或者容易相互分离的复合材料。The mobile phone back cover blank material forming mold including the middle frame with the hydraulic device of the present invention is suitable for various mobile phone back cover products including the middle frame, and the materials used are high-viscosity materials or low-viscosity materials, and composite materials that are not easy to separate from each other Or composite materials that are easily separated from each other.
参考图1、图2、图3、图4、图5、图6、图7、图8、图9、图10、图11、图12和图13，详细描述本发明自带液压装置的包括中框的手机后盖胚料成型模具的优选实施例及其他实施例。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, describe in detail the inclusion of the self-contained hydraulic device of the present invention The preferred embodiment and other embodiments of the blank material forming mold for the back cover of the mobile phone in the middle frame.
本发明提供一种自带液压装置的包括中框的手机后盖胚料成型模具，其特征在于，其包括移动模1和固定模2，所述移动模1设有移动模支撑装置1.10，所述固定模设2有固定模支撑装置2.4，所述移动模1和所述固定模2相互配合，所述移动模1设有移动模模芯1.4，所述固定模2上设有固定模模芯2.1，所述移动模1包括第二次移动机构1.1和限位装置1.2，还包括液压装置1.1.1、连接件1.1.3、导向组件3、水道装置5、冷料腔F和定位结构6，所述移动模1芯通过所述连接件1.1.3、所述液压装置1.1.1与所述移动模1活动连接，由所述液压装置1.1.1、所述导向装置1.1.4、所述移动模1芯和所述连接件1.1.3组成第二次移动机构1.1，所述第二次移动机构1.1通过所述导向组件3、所述限位装置1.2与所述移动模1活动连接，所述移动模1的模芯1.4通过所述定位结构6定位在所述支撑装置1.10上，所述固定模2的模芯2.1通过所述定位结构6定位在所述支撑装置2.4上，所述水道装置5分布在所述移动模1内和所述固定模2内，所述移动模1模芯1.4有五个成型面，周围的四个成型面1.4.1与中间的成型面1.4.2之间的夹角大于或者等于90度，所述固定模2模芯2.1有五个成型面，周围的四个成型面2.1.1与中间的成型面2.1.2之间的夹角大于或者等于90度。The invention provides a mobile phone back cover blank forming mold including a middle frame with a hydraulic device, which is characterized in that it includes a movable mold 1 and a fixed mold 2, and the movable mold 1 is provided with a movable mold supporting device 1.10, so The fixed mold is provided with a fixed mold supporting device 2.4, the movable mold 1 and the fixed mold 2 cooperate with each other, the movable mold 1 is provided with a movable mold core 1.4, and the fixed mold 2 is provided with a fixed mold Core 2.1, the moving mold 1 includes a second moving mechanism 1.1 and a limit device 1.2, and also includes a hydraulic device 1.1.1, a connecting piece 1.1.3, a guide assembly 3, a water channel device 5, a cold material cavity F and a positioning structure 6. The core of the moving mold 1 is movably connected with the moving mold 1 through the connecting piece 1.1.3 and the hydraulic device 1.1.1. The hydraulic device 1.1.1, the guiding device 1.1.4, The moving mold 1 core and the connecting piece 1.1.3 form a second moving mechanism 1.1, and the second moving mechanism 1.1 moves with the moving mold 1 through the guide assembly 3 and the limiting device 1.2 connected, the mold core 1.4 of the movable mold 1 is positioned on the support device 1.10 through the positioning structure 6, and the mold core 2.1 of the fixed mold 2 is positioned on the support 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 mold core 1.4 of the movable mold 1 has five molding surfaces, the surrounding four molding surfaces 1.4.1 and the middle molding surface 1.4 .2 The included angle between them is greater than or equal to 90 degrees, the core 2.1 of the fixed mold 2 has 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 greater than Or equal to 90 degrees.
在本实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具还包括排气装置8，所述第二次移动机构1.1包括所述液压装置1.1.1、所述导向装置1.1.4、所述移动模芯1.4和所述连接件1.1.3固定在所述移动承载装置1.10上，所述镶件组合9、所述移动模1模芯1.4和所述固定模2模芯2.1组成活动型腔，所述排气装置88设在所述活动型腔周围，所述镶件组合9直接或者间接地通过所述定位结构6定位在所述支撑装置上，所述定位结构6位于所述活动型腔的一侧，所述冷料腔F位于所述活动型腔的另一侧并与所述活动型腔连通，所述冷料腔F有一个或两个，所述移动模模芯1.4周围的四个成型面1.4.1与镶件组合9之间的最大距离为T3,所述固定模模芯2.1四个成型面2.1.1与相邻的移动模模芯1.4周围的四个成型面1.4.1之间的最大距离为T4,所述移动模模芯1.4与所述固定模模芯2.1之间的距离为T5，T4＝T3≥T5。In this embodiment, the mobile phone back cover blank molding mold including the middle frame with hydraulic device in the present invention also includes an exhaust device 8, and the second moving mechanism 1.1 includes the hydraulic device 1.1.1, the The guiding device 1.1.4, the moving mold core 1.4 and the connecting piece 1.1.3 are fixed on the moving carrying device 1.10, the insert assembly 9, the moving mold core 1.4 and the fixed mold 2. The mold core 2.1 forms a movable cavity, the exhaust device 88 is arranged around the movable cavity, the insert assembly 9 is directly or indirectly positioned on the support device through the positioning structure 6, the The positioning structure 6 is located on one side of the active cavity, and the cold material cavity F is located on the other side of the active cavity and communicated with the active cavity. There are one or two cold material cavities, The maximum distance between the four molding surfaces 1.4.1 around the moving mold core 1.4 and the insert assembly 9 is T3, and the four molding surfaces 2.1.1 of the fixed mold core 2.1 and the adjacent moving molds The maximum distance between the four molding surfaces 1.4.1 around the core 1.4 is T4, the distance between the moving mold core 1.4 and the fixed mold core 2.1 is T5, T4=T3≥T5.
在本实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述排气装置8包括气槽8.1、排气间隙8.2和排气通道8.3，所述排气间隙8.2与所述气槽8.1联通，所述排气间隙8.2分为两个或者两个以上，所述每一个排气间隙8.2的大小根据所述排气间隙8.2所在模具位置的不同来设定，一个所述定位结构6.2与两个所述冷料腔F之间呈现三角形、接近等腰三角形或者接近等边三角形的形状，所述冷料腔位于所述固定模2模芯与所述镶件组合9之间，所述冷料腔的腔体主要位于所述固定模2模芯或者所述镶件组合9内。In this embodiment, the exhaust device 8 of the mobile phone back cover blank forming mold including a middle frame with a hydraulic device in the present invention includes an air groove 8.1, an exhaust gap 8.2 and an exhaust channel 8.3, and the exhaust The gap 8.2 communicates with the air groove 8.1, the exhaust gap 8.2 is divided into two or more than two, and the size of each exhaust gap 8.2 is set according to the position of the mold where the exhaust gap 8.2 is located , the shape between one positioning structure 6.2 and the two cold material cavities F is triangular, close to isosceles triangle or close to equilateral triangle, and the cold material cavity is located between the core of the fixed mold 2 and the insert Between the parts assembly 9, the cavity of the cold material chamber is mainly located in the core of the fixed mold 2 or the insert assembly 9.
在本实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述排气间隙8.2的大小从离模具的进料口最近端到离模具的进料口最远端依次变化或者所述排气间隙8.2的大小从模具成型最容易的位置到模具成型最难的位置依次变化。In this embodiment, the size of the exhaust gap 8.2 of the mobile phone back cover blank molding mold including the middle frame with hydraulic device in the present invention is from the nearest end to the farthest from the feed port of the mold. The distal end changes sequentially or the size of the exhaust gap 8.2 changes sequentially from the position where mold forming is easiest to the position where mold forming is most difficult.
在本实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述定位结构6包括唧嘴镶件6.1、进料口镶件6.2和定位销6.3，所述唧嘴镶件6.2通过定位销6.3安装在所述固定模2的中心位置，所述进料口镶件6.2通过定位销6.3安装在所述移动模1的中心位置。In this embodiment, the positioning structure 6 of the mobile phone back cover blank forming mold including a middle frame with a hydraulic device in the present invention includes a nozzle insert 6.1, a feed inlet insert 6.2 and a positioning pin 6.3. The nozzle insert 6.2 is installed at the center of the fixed mold 2 through the positioning pin 6.3, and the inlet insert 6.2 is installed at the center of the movable mold 1 through the positioning pin 6.3.
在本实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述活动型腔是两个。In this embodiment, there are two movable cavities in the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention.
在其他实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述活动型腔是一个。In other embodiments, the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention has one movable cavity.
在其他实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述活动型腔是两个以上。In other embodiments, there are more than two movable cavities in the mobile phone back cover blank forming mold including the middle frame with its own hydraulic device in the present invention.
在本实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述排气间隙8.2的大小为L，0.005mm≤L≤0.05mm。In this embodiment, the size of the exhaust gap 8.2 of the mobile phone back cover blank forming mold including the middle frame with the hydraulic device in the present invention is L, and 0.005mm≤L≤0.05mm.
在其他实施例中，本发明自带液压装置的包括中框的手机后盖胚料成型模具的所述排气间隙8.2的大小为L，0.005mm≤L≤0.08mm。In other embodiments, the size of the exhaust gap 8.2 of the mobile phone back cover blank forming mold including the middle frame with the hydraulic device in the present invention is L, and 0.005mm≤L≤0.08mm.
本发明自带液压装置的包括中框的手机后盖胚料成型模具使用易相互分离复合材料生产手机后盖的工作过程如下：The mobile phone back cover blank forming mold including the middle frame with hydraulic device in the present invention uses the composite material that is easy to separate from each other to produce the mobile phone back cover. The working process is as follows:
手机后盖需要同时具有硬度高和强度大的性能，硬度高解决手机后盖耐磨和较少划痕的使用效果，强度大解决手机后盖耐摔和耐裂的使用效果。The back cover of the mobile phone needs to have the performance of high hardness and high strength at the same time. High hardness solves the effect of wear resistance and less scratches on the back cover of the mobile phone, and high strength solves the use effect of the back cover of the mobile phone against falling and cracking.
聚甲基丙烯酸甲酯，即poly methyl methacrylate，简称PMMA，又称做压克力、亚克力或有机玻璃，具有较高透明度和光亮度，耐热性好，并有坚韧，质硬，刚性特点，用作手机后盖成型原料可以满足手机后盖耐磨和较少划痕的使用效果。Polymethyl methacrylate, namely poly methyl methacrylate, referred to as PMMA, also known as acrylic, acrylic or plexiglass, has high transparency and brightness, good heat resistance, and has the characteristics of toughness, hard quality and rigidity. Used as a raw material for the back cover of a mobile phone, it can meet the requirements of wear resistance and less scratches on the back cover of the mobile phone.
聚碳酸酯，简称PC，是分子链中含有碳酸酯基的高分子聚合物，一种强韧的热塑性树脂，抗冲击性能好，用作手机后盖成型原料可以满足手机后盖耐摔和耐裂的使用效果。Polycarbonate, referred to as PC, is a high molecular polymer containing carbonate groups in the molecular chain. It is a tough thermoplastic resin with good impact resistance. It can be used as a raw material for the back cover of a mobile phone to meet the requirements of the drop and crack resistance of the back cover of the mobile phone. use effect.
为了同时满足手机后盖硬度高和强度大的性能，可以使用PMMA+PC复合材料成型手机后盖，但是，在传统PMMA+PC复合材料成型工艺中注入速度范围为500mm/s以上，压力范围为2800-3000kgf/cm2，由于注料的速度快、压力大导致PMMA与PC容易相互分离，成型难度大，良率低。In order to meet the high hardness and high strength of the mobile phone back cover at the same time, the PMMA+PC composite material can be used to form the mobile phone back cover. However, in the traditional PMMA+PC composite material molding process, the injection speed range is above 500mm/s, and the pressure range is 2800-3000kgf/cm 2 , due to the fast injection speed and high pressure, PMMA and PC are easy to separate from each other, making molding difficult and low yield.
本发明自带液压装置的包括中框的手机后盖胚料成型模具由于使用活动型腔，可以在相对于传统成型工艺低速低压的条件下成型，由于注料的速度相对较慢、压力相对较小，PMMA与PC不容易相互分离，成型难度变小，良率大大提高。The mobile phone back cover blank molding mold including the middle frame with hydraulic device in the present invention can be molded under the conditions of low speed and low pressure compared with the traditional molding process due to the use of movable cavities, because the injection speed is relatively slow and the pressure is relatively high Small, PMMA and PC are not easy to separate from each other, the molding difficulty becomes smaller, and the yield rate is greatly improved.
本发明自带液压装置的包括中框的手机后盖胚料成型模具使用使用PMMA+PC复合材料生产手机后盖过程如下：The mobile phone back cover blank material forming mold including the middle frame of the present invention uses the PMMA+PC composite material to produce the mobile phone back cover process as follows:
第一步将PMMA+PC的复合材料烘干，输送到注塑机，将PMMA+PC的复合材料由固态转化为液态。The first step is to dry the composite material of PMMA+PC and transport it to the injection molding machine to convert the composite material of PMMA+PC from solid to liquid.
第二步调节模具相应产品对应部位的温度，达到中框的手机后盖胚料最佳成型条件，移动模模芯1.4周围成型面1.4.1的温度低于移动模模芯1.4中间成型面1.4.2的温度，固定模模芯2.1周围成型面2.1.1的温度低于固定模模芯2.1中间成型面2.1.2的温度，镶件组合9的温度低于移动模模芯1.4中间成型面1.4.2的温度或者低于固定模模芯2.1中间成型面2.1.2的温度。The second step is to adjust the temperature of the corresponding part of the corresponding product of the mold to achieve the best molding condition of the mobile phone back cover blank of the middle frame. The temperature of the forming surface 1.4.1 around the moving mold core 1.4 is lower than that of the moving mold core 1.4. The middle forming surface 1.4 .2 temperature, 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 that of the moving mold core 1.4 middle molding surface The temperature of 1.4.2 or lower than the temperature of the middle molding surface 2.1.2 of the fixed mold core 2.1.
第三步移动模1向固定模2方向移动，开始合模。The third step is to move the mobile mold 1 to the fixed mold 2 and start mold closing.
第四步由固定模2、镶件组合9和第二次移动机构1.1组成活动型腔A，固定模模芯2.1与镶件组合9成所述冷料腔F，此时活动型腔容积最大，移动模模芯1.4周围的四个成型面1.4.1与镶件组合9之间的最大距离为T3，固定模模芯2.1四个成型面2.1.1与相邻的移动模模芯1.4周围的四个成型面1.4.1之间的最大距离为T4。The fourth step consists of the fixed mold 2, the insert combination 9 and the second moving mechanism 1.1 to form the active cavity A, and the fixed mold core 2.1 and the insert combination 9 form the cold material cavity F. At this time, the volume of the active cavity is the largest , the maximum distance between the four molding surfaces 1.4.1 around the moving mold core 1.4 and the insert combination 9 is T3, and the four molding surfaces 2.1.1 of the fixed mold core 2.1 and the adjacent moving mold core 1.4 The maximum distance between the four molding surfaces 1.4.1 is T4.
(5)向活动型腔A中注入液态原料，启动液压装置1.1.1，开始压缩，此时活动型腔为C，进料速度为300mm/s，进料压力为1800kgf/cm2。(5) Inject liquid raw materials into the active cavity A, start the hydraulic device 1.1.1, and start compression. At this time, the active cavity is C, the feeding speed is 300mm/s, and the feeding pressure is 1800kgf/cm 2 .
(6)活动型腔容积由大变小至包括中框的手机后盖胚料要求体积，形成活动型腔E，此时移动模模芯1.4与固定模模芯2.1之间的距离为T5，T4＝T3≥T5。(6) The volume of the movable cavity changes from large to small to the required volume of the mobile phone back cover blank including the middle frame, forming the movable cavity E. At this time, the distance between the movable mold core 1.4 and the fixed mold core 2.1 is T5, T4=T3≥T5.
(7)产品冷却成型，移动模1后退，第二次移动机构1.1后退，打开模具，取出产品。(7) The product is cooled and formed, the moving mold 1 is retreated, the second moving mechanism 1.1 is retreated, the mold is opened, and the product is taken out.
(8)移动模模芯1.4在弹簧、气动或电动装置的作用下后退，液压装置1.1.1恢复原位。(8) The moving mold core 1.4 retreats under the action of a spring, pneumatic or electric device, and the hydraulic device 1.1.1 returns to its original position.
所述活动型腔A的容积>所述活动型腔C的容积>所述活动型腔E的容积。The volume of the active cavity A>the volume of the active cavity C>the volume of the active cavity E.
与现有技术相比较，本发明具有以下有益效果：由于设有液压装置，提高了注塑机的生产性能；由于移动模模芯和固定模模芯均设有五个成型面，并且移动模模芯周围的四个成型面与镶件组合之间的最大距离≥移动模模芯和所述固定模模芯之间的最小距离，使手机后盖和手机中框为一体式，过度自然，降低成本，并且中框一体式手机后盖胚料外观比非一体式的漂亮；由于设有冷料腔，冷却的液态原料容易流动至冷料腔，避免冷料影响成型产品的质量；由于设有活动型腔，使活动型腔停止压缩前的容积大于产品的体积，冷料腔以外的成型手机后盖及其中框的活动型腔内的液态原料流动均匀，手机后盖及其中框在低速或低压下容易成型，而且产品内应力好、外观漂亮、厚度均匀、复合材料不易相互分离。Compared with the prior art, the present invention has the following beneficial effects: due to the hydraulic device, the production performance of the injection molding machine is improved; since the movable mold core and the fixed mold core are both provided with five molding surfaces, and the movable mold core The maximum distance between the four molding surfaces around the core and the combination of inserts ≥ the minimum distance between the core of the mobile mold and the core of the fixed mold, so that the back cover of the mobile phone and the middle frame of the mobile phone are integrated, which is excessively natural and reduces cost, and the appearance of the back cover blank of the middle-frame integrated mobile phone is more beautiful than that of the non-integrated one; because of the cold material cavity, the cooled liquid raw material is easy to flow to the cold material cavity, preventing the cold material from affecting the quality of the molded product; The active cavity makes the volume of the active cavity larger than the volume of the product before the compression is stopped. The liquid material in the active cavity of the mobile phone back cover and the middle frame outside the cold material cavity flows evenly. The mobile phone back cover and the middle frame are at low speed or It is easy to form under low pressure, and the product has good internal stress, beautiful appearance, uniform thickness, and composite materials are not easy to separate from each other.
以上所揭露的仅为本发明的较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明申请专利范围所作的等同变化，仍属本发明所涵盖的范围。The above disclosures are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.
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