WO2024037517A1 - 硫化橡胶手套的压铸成型模具及压铸成型设备 - Google Patents
硫化橡胶手套的压铸成型模具及压铸成型设备 Download PDFInfo
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- WO2024037517A1 WO2024037517A1 PCT/CN2023/113017 CN2023113017W WO2024037517A1 WO 2024037517 A1 WO2024037517 A1 WO 2024037517A1 CN 2023113017 W CN2023113017 W CN 2023113017W WO 2024037517 A1 WO2024037517 A1 WO 2024037517A1
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- Prior art keywords
- mold
- die
- middle plate
- plate
- casting
- Prior art date
Links
- 238000004512 die casting Methods 0.000 title claims abstract description 89
- 239000004636 vulcanized rubber Substances 0.000 title claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 103
- 239000007924 injection Substances 0.000 claims abstract description 103
- 229920001971 elastomer Polymers 0.000 claims abstract description 52
- 239000005060 rubber Substances 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims description 94
- 238000000465 moulding Methods 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000005192 partition Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- -1 compound compound Chemical class 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
Definitions
- the invention relates to a die-casting mold and die-casting equipment for vulcanized rubber gloves.
- Vulcanized rubber gloves are widely used in various industries, such as labor insurance, medical, fishery, chemical protection, outdoor sports, etc. Most of the existing vulcanized rubber gloves adopt dipping process or molding process. Vulcanized rubber gloves for different uses are produced using different types of rubber. Some types of rubber are not suitable for the dipping process, resulting in low production efficiency. Some gloves require lengths all the way to the shoulders, which also results in a significant reduction in production efficiency. The dipping process also has environmental issues or low product quality.
- the industry requires optimized production equipment and/or processes for vulcanized rubber gloves.
- this invention is suitable for the production of rubber gloves of any rubber type and size, and the thinnest thickness can be 0.2 mm.
- rubber gloves of any type can be lined with different materials to make them more comfortable to wear. Under special circumstances, it can also meet the need for warmth.
- a die-casting mold for vulcanized rubber gloves including: a combined side plate mold, which in the combined state has an inner cavity that basically corresponds to the shape of a human hand; a middle plate hand mold with a dividing element, It has a main body that basically corresponds to the shape of a human hand, and a separation element provided on the main body.
- the middle plate hand mold is suitable for being installed into the side plate mold to connect the wall of the inner cavity of the side plate mold with the middle plate.
- a die-casting molding cavity is formed between the outer surfaces of the main body of the wrench mold, and the die-casting molding cavity is divided into two parts by the middle plate hand mold and the side plate mold, wherein the middle plate hand mold also includes: A longitudinally extending glue injection channel extending longitudinally downward from the upper part of the wrench mold, and a transversely extending glue injection channel extending transversely from the longitudinally extending glue injection channel to the glue outlet on the surface of the middle plate hand mold; and suitable for installation A guide plate that reaches the top of the side plate mold to guide the injection of rubber material.
- the guide plate is provided with: a guide hole, suitable for injecting rubber material; and a guide channel that connects the guide plate to the top of the side plate mold.
- the flow hole is connected to the longitudinally extending glue injection channel.
- the die-casting mold for vulcanized rubber gloves further includes a glue injection plate, the glue injection plate is adapted to be attached to the upper part of the guide plate and includes a glue injection hole, and the glue injection hole is adapted to be connected with an external injection head to The rubber material is injected into the guide plate from the outside; the rubber injection plate is equipped with a cold runner system.
- the middle plate hand mold includes one longitudinally extending glue injection channel or two or more longitudinally extending glue injection channels distributed at intervals.
- the die-casting mold for vulcanized rubber gloves includes a plurality of transversely extending glue injection channels extending from each longitudinally extending glue injection channel.
- the longitudinally extending glue injection channel extends in the vertical direction
- the transversely extending glue injection channel extends in the horizontal direction
- the plurality of glue outlets to which the plurality of transversely extending glue injection channels extend are staggeredly distributed on the surface of the middle plate hand mold.
- the diameter of the longitudinally extending glue injection channel is 10-20mm, and the diameter of the transversely extending channel is 2-5mm.
- the die-casting mold for vulcanized rubber gloves includes a pair of middle plate hand molds corresponding to a pair of gloves, and the side plate mold includes two inner cavities corresponding to a pair of middle plate hand molds.
- a pair of mid-plate hand molds are adapted to be installed into the two inner cavities respectively to form a pair of die-cast molding cavities for gloves.
- the dividing element of the middle plate hand mold includes a dividing plate, and the dividing plate extends from the outside of the main body of the middle plate hand mold; when the middle plate hand mold is installed into the corresponding inner cavity of the side plate mold, When in the middle, the partition plate divides the corresponding die-casting molding cavity into a left chamber and a right chamber.
- the side panel mold includes a left panel mold and a right panel mold that can be matched with each other and installed; and the partition plate separates the left cavity and the right cavity corresponding to the left panel mold and the right panel mold.
- the thickness of the die-casting cavity is 0.2mm-1mm.
- the die-casting mold for vulcanized rubber gloves further includes: a second hand mold without dividing elements, having substantially the same shape as the main body of the middle plate hand mold and adapted to be mounted to the side plates. in the inner cavity of the mold.
- the inner surface of the side plate mold has features suitable for bonding with the rubber surface.
- the flow guide channel of the guide plate connects the guide holes to the longitudinally extending glue injection channels of a pair of middle plate hand molds.
- a die-casting molding equipment for vulcanized rubber gloves including: the above-mentioned die-casting mold; a high-pressure injection mechanism for pressurizing and injecting the prepared unvulcanized compound into the die-casting mold Glue injection holes of the mold; a mold moving mechanism for moving various parts of the die-casting mold according to a preset program; and a control mechanism for controlling the operations of the mold moving mechanism and the high-pressure injection mechanism.
- the die-casting molding equipment further includes a heating device for heating the unvulcanized compound.
- Figure 1 is a schematic view of a die-casting mold for vulcanized rubber gloves in an separated state according to one embodiment of the present invention.
- Figure 2 is a schematic diagram of the mold closing state of a die-casting mold for vulcanized rubber gloves according to one embodiment of the present invention.
- FIG. 3 is a schematic diagram of another separated state of the die-casting mold of the vulcanized rubber glove according to one embodiment of the present invention.
- Figure 4 is a schematic diagram of another mold closing state of the die-casting mold for vulcanized rubber gloves according to one embodiment of the present invention.
- FIG. 5 is a schematic diagram of the completed separated state of the die-casting mold of the vulcanized rubber glove according to one embodiment of the present invention.
- Figure 6 is a schematic diagram of a rubber glove manufactured by a die-casting mold for vulcanized rubber gloves according to one embodiment of the present invention.
- Figure 7 is a partial perspective view of the middle plate hand mold, guide plate and glue injection plate of the die-casting mold for vulcanized rubber gloves according to one embodiment of the present invention, showing the distribution of the flow guide channels and the glue injection channels in the mold .
- the present invention provides a die-casting mold for manufacturing vulcanized rubber gloves, as well as die-casting equipment.
- Technical problems that can be solved according to the technical solution of the present invention include, for example: due to the poor fluidity of natural rubber and synthetic rubber (compared with thermoelastomer materials such as PVC, TPR, TPU, etc.), in the inner cavity of the mold of thin products (0.2-1 mm)
- the flow inside can easily cause problems such as dead glue, mold expansion, and mold core deviation; it is difficult to produce lined rubber gloves with ordinary processes.
- the length of the rubber gloves manufactured by the mold or equipment of the present invention is not limited and can reach the wrist or the shoulder.
- the thinnest thickness can be 0.2 mm.
- Figures 1 to 7 illustrate the preferred method of manufacturing a pair of gloves as an example, but the present invention may also include embodiments of manufacturing a single glove. In this case, only the features corresponding to one glove need to be retained, for example The inner cavity corresponding to one glove and the middle plate hand mold and hand mold corresponding to one glove, etc.
- Figure 1 shows an unassembled state view of a die-casting mold for manufacturing vulcanized rubber gloves according to one embodiment of the present invention.
- the die-casting mold includes combined side plate molds 41 and 42, which in the combined state have an inner cavity that basically corresponds to the shape of a human hand.
- Figure 1 shows a glove that does not distinguish between left and right hands.
- the side plate molds 41 and 42 are preferably two split molds that match each other and are basically symmetrical. They can be matched with each other through matching features, and can be matched with each other. Fastened together, for example by pressing each other against each other by a hydraulic mechanism.
- the glove may be a left- and right-hand glove, in which case the side panel molds 41, 42 match each other but are not symmetrical. Specifically, the parts of the inner cavity distributed on the two side plate molds 41, 42 are asymmetrical to each other.
- the side plate molds 41 and 42 include two inner cavities corresponding to a pair of gloves. It can be seen that half of the two inner cavities are arranged between the side plate mold 41 and the side plate mold. 42 in. When the side plate molds 41 and 42 are closed, two complete inner cavities are formed.
- the die-casting mold of Figure 1 may also include a middle plate hand mold 31 with a partition element 33, a main body 34 that substantially corresponds to the shape of a human hand, and a partition element 33 provided on the main body.
- the middle plate hand mold 31 is adapted to be installed into the side plate molds 41, 42 so as to be between the wall of the inner cavity of the side plate molds 41, 42 and the outer surface of the main body 34 of the middle plate hand mold 31.
- a die-casting molding cavity is formed between them.
- the dividing elements of the mid-plate hand mold are preferably dividing plates.
- the dividing plate may be located at a middle position of the thickness of the main body of the middle plate hand mold and extend from the outside of the main body of the middle plate hand mold.
- the partition plate separates the corresponding die-casting molding cavity into a left cavity and a right cavity, which are respectively connected with the side plate mold. 41 and the left and right chambers corresponding to the side plate mold 42.
- the thickness of the partition plate may be, for example, 40 mm or slightly thinner.
- the die-casting mold of Figure 1 includes a pair of middle plate hand molds 31 corresponding to a pair of gloves.
- the pair of middle plate hand molds 31 are suitable for being respectively installed on the two side plate molds 41 and 42 formed when the molds are closed.
- a die-cast molding cavity for a pair of gloves is formed in the inner cavity.
- the middle plate hand mold 31 also includes: a longitudinally extending glue injection channel (glue feeding main channel) extending longitudinally downward from the upper part of the middle plate hand mold, and a transverse glue injection channel extending from the longitudinally extending glue channel.
- a transversely extending glue injection channel extending to the glue outlet 71 on the surface of the middle plate hand mold.
- the die-casting mold according to the present invention also includes a guide plate 21 adapted to be installed on the top of the side plate mold to guide the injection of rubber material.
- the guide plate is provided with: a guide hole 22, suitable for injecting rubber material; and a flow guide channel, which connects the flow guide hole to the longitudinally extending glue injection channel.
- the die-casting mold may further include a glue injection plate 11, which is adapted to be attached to the upper part of the guide plate and includes a glue injection hole 12, which is adapted to be connected to an external injection head. to inject the glue into the deflector from the outside.
- the rubber injection plate may be provided with a cold runner system for cooling the rubber material to prevent the formation of dead glue.
- Figure 7 is a schematic cross-sectional view of the die-casting mold in an assembled state, showing the interconnected relationship between the glue injection holes and the glue injection channels.
- the glue injection plate and the flow guide plate can be formed into a single plate and provided with glue injection holes, flow guide channels and cold runner systems.
- the top of the side plate mold and the bottom of the guide plate, as well as the top of the guide plate and the bottom of the rubber injection plate, have joint parts that match each other, and the glue injection plate is adapted to be molded to the flow guide through the joint parts.
- the baffle is adapted to be molded to the top of the side plate mold through the joining portion.
- the concave and convex portions matching each other are schematically shown in Fig. 7 . Other bonding elements can also be used.
- the mid-plate hand mold corresponding to a single glove may include one longitudinally extending glue injection channel or two or more longitudinally extending glue injection channels distributed at intervals.
- the middle plate hand mold includes a pair of hands There are two corresponding middle plate hand molds.
- Each middle plate hand mold includes a longitudinally extending glue injection channel or a main glue feed channel.
- the die casting mold may further include a plurality of transversely extending glue injection channels extending from each longitudinally extending glue injection channel.
- transversely extending glue injection channels are respectively provided at positions corresponding to the base of the palm and the middle of the fingers.
- a transversely extending glue injection channel is also provided at a position corresponding to the arm, and Figure 7 shows it extending front and back.
- the extension directions of the transversely extending glue injection channels may be different, or may even be staggered with each other.
- a glue outlet 71 is provided on the laterally extending glue injection channel, and the glue material enters the die-casting molding cavity through the glue outlet 71 .
- the longitudinally extending glue injection channel extends in a vertical direction
- the transversely extending glue injection channel extends in a horizontal direction.
- the plurality of glue outlets extending to the plurality of transversely extending glue injection channels are staggeredly distributed on the surface of the middle plate hand mold.
- the diameter of the longitudinally extending glue injection channel is 10-20mm, and the diameter of the transversely extending channel is 2-5mm.
- the thickness of the die-casting cavity formed is 0.2mm-1mm.
- the die-casting mold may also include a second hand mold 51 without dividing elements, having substantially the same shape as the main body 34 of the middle plate hand mold and adapted to be mounted to the side plate. in the inner cavity of the mold.
- the second hand mold 51 may be used to add a glove lining to the manufactured glove, as will be described in detail below.
- the inner surface of the side panel mold has features suitable for bonding with the rubber surface.
- its material can be suitable for combining with rubber or forming a certain texture.
- a die-casting molding equipment for vulcanized rubber gloves which includes a die-casting mold according to the invention; and a high-pressure injection mechanism for pressurizing and injecting the prepared unvulcanized rubber compound into the die-casting mold. injection hole; a mold moving mechanism for moving various parts of the die-casting mold according to a preset program, such as various hydraulic operating mechanisms; and a control mechanism for controlling the operation of the mold moving mechanism and the high-pressure injection mechanism .
- the die-casting molding equipment may also include heating equipment for heating the unvulcanized compound.
- the operation of the die-casting mold and the die-casting equipment according to the present invention can be referred to the following manufacturing method.
- a method for manufacturing vulcanized rubber gloves using the above-mentioned die-casting molding equipment includes, for example, the following steps:
- a center panel hand mold with spacer elements is positioned in the side panel mold by engaging its spacer elements or positioning steps with the positioning elements of the side panel mold.
- Additional fixtures can be set up in the die-casting equipment to hold the side panel molds and center panel hand molds in place.
- hydraulic positioning devices can be provided.
- Figure 1 shows the dividing element and the lower positioning steps on the middle plate hand mold with dividing elements according to one embodiment of the present invention, as well as the corresponding positioning steps on the lower part of the side plate mold.
- the lower part of the baffle and the top of the side plate mold may be provided with positioning elements capable of engaging each other.
- Additional fixtures can be provided in the die-casting equipment to hold the baffle, injection plate and side plate molds in place.
- hydraulic positioning devices can be provided. At this time, the outlet of the glue injection channel of the glue injection plate is connected to the guide plate, and then connected to the entrance of the longitudinal glue injection channel on the top of the middle plate hand mold.
- Figure 7 shows the positioning of the glue injection plate, guide plate and side plate mold in this state, as well as the connection state between the glue injection hole and the glue injection channel.
- the glue injection mechanism can maintain high pressure to realize the glue injection process of unvulcanized compound rubber. At this time, since the glue injection outlets staggered on the surface of the middle plate hand mold guide the unvulcanized mixed rubber material into the separated die-casting molding cavities, it helps to reduce the pressure required for glue injection and convert the unvulcanized mixed rubber into The rubber material is evenly distributed into the die-casting molding cavity.
- the unvulcanized compound in the rubber injection mechanism can be appropriately heated to improve its fluidity.
- a cold runner system can be installed in the glue injection plate to prevent the formation of dead glue.
- the unvulcanized compound is molded in separate die-casting molding cavities under the action of pressure and temperature, two separate parts 61 of each glove are formed.
- these portions 61 remain in close contact with the corresponding portions of the side panel mold.
- this can be achieved by selecting the materials of the side plate mold and the middle plate hand mold with dividing elements, such as the inner surface of the side plate mold having a rougher surface, etc.; it can also be achieved by selecting the material between the middle plate hand mold and the side plate mold. It can be achieved by the temperature difference; or it can be achieved by providing features (such as certain textures) on the inner surface of the side plate mold that are easy to combine with the rubber glove part.
- FIG. 3 shows the state at this time.
- FIG. 4 shows the state at this time.
- the positioning of the second hand mold in the side plate mold is similar to the above mentioned middle plate hand mold with dividing elements.
- the side plate mold is closed, and together with the second hand mold without separate elements, the various parts of the rubber glove and the inner lining of the rubber glove are pressed together to fit together.
- each part of the side plate mold can be separated to place the middle plate hand mold or a second hand mold, and can be closed to cooperate with the middle plate hand mold with a dividing element. Separate die-casting molding cavity, or cooperate with a second hand mold without dividing elements to form a complete glove molding cavity.
- the middle hand mold with the dividing elements is withdrawn, the two separate parts of each glove formed remain on the parts of the side plate mould, and when the second hand mold with glove lining is inserted and the sides of the side plate moulds are closed, After each section, the two separate parts of the resulting glove can be joined to each other and to the interior of the glove.
- An inflatable channel can be provided in the second hand mold, high-pressure gas can be provided through an external air pressure source, and pressurized gas can be provided to the surface of the second hand mold after the mold is closed, so as to press the inner surface of the glove on the surface of the second hand mold toward the hand mold.
- the inner surface of the rubber glove promotes mutual fit.
- vulcanization is performed by arranging a heating device near the mold, heating the closed mold to heat the rubber glove and the second hand mold, and pressurizing the rubber glove with the pressurized gas. At this time, the various parts of the rubber glove and the inside of the glove form a complete rubber glove.
- Figure 5 shows the second hand mold removed from the side plate mold after this step is completed, with a pair of gloves already formed on it.
- Figure 6 shows a pair of vulcanized rubber gloves made in accordance with the present invention.
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Abstract
本发明公开了一种用于硫化橡胶手套的压铸成型模具，包括：组合式的边板模具，组合状态下具有与人手形状基本对应的内腔；带分隔元件的中板手模，具有与人手形状基本对应的主体，和在主体上设置的分隔元件，所述中板手模适于安装到所述边板模具中以在所述边板模具的内腔的壁与所述中板手模的主体的外表面之间形成压铸成型腔，所述压铸成型腔被所述中板手模和所述边板模具分隔成两个部分，其中所述中板手模还包括：从中板手模的上部向下纵向延伸的纵向延伸注胶通道，和从所述纵向延伸注胶通道横向延伸到所述中板手模表面的出胶口的横向延伸注胶通道；和适于安装到所述边板模具顶部以引导注入胶料的导流板，所述导流板上设置有：导流孔，适于注入胶料；和导流通道，所述导流通道将所述导流孔连通到所述纵向延伸注胶通道。
Description
相关申请的交叉引用
本申请要求2022年8月15日提交的发明名称为“硫化橡胶手套的压铸成型模具及压铸成型设备”的中国发明专利申请CN202210976774.2的优先权，在此通过引用将其全部内容并入本文。
本发明涉及一种硫化橡胶手套的压铸成型模具及压铸成型设备。
硫化橡胶手套广泛应用于各种行业，如劳保、医用、渔业、防化、户外运动等。现有硫化橡胶手套大多采用浸沾工艺或模压工艺。不同用途的硫化橡胶手套会采用不同胶种来生产。部分胶种不适于浸沾工艺，导致生产效率低下。有些手套要求长度一直到肩膀，这也导致生产效率大大降低。浸沾工艺还存在环保问题或者产品质量不高。
由于橡胶手套的厚度很薄，如果采用一般模压工艺，很难保证厚度的一致，而且厚度很难做到1毫米以下。
无论是浸沾工艺还是一般模压工艺，都很难生产带内衬的橡胶手套。
本行业需要优化的硫化橡胶手套的生产设备和/或工艺。
发明内容
本发明通过设计独特的模具，采用压铸工艺，适用于任何胶种和任何尺寸的橡胶手套生产，厚度最薄可以做到0.2毫米。同时可以使任何胶种的橡胶手套带有不同材质内衬，使穿着更舒适。特殊情况下，还可以满足保暖的需求。
根据本发明的一方面，提供一种用于硫化橡胶手套的压铸成型模具，包括：组合式的边板模具，组合状态下具有与人手形状基本对应的内腔；带分隔元件的中板手模，具有与人手形状基本对应的主体，和在主体上设置的分隔元件，所述中板手模适于安装到所述边板模具中以在所述边板模具的内腔的壁与所述中板手模的主体的外表面之间形成压铸成型腔，所述压铸成型腔被所述中板手模和所述边板模具分隔成两个部分，其中所述中板手模还包括：从中板手模的上部向下纵向延伸的纵向延伸注胶通道，和从所述纵向延伸注胶通道横向延伸到所述中板手模表面的出胶口的横向延伸注胶通道；和适于安装到所述边板模具顶部以引导注入胶料的导流板，所述导流板上设置有：导流孔，适于注入胶料；和导流通道，所述导流通道将所述导流孔连通到所述纵向延伸注胶通道。
优选的，所述用于硫化橡胶手套的压铸成型模具还包括注胶板，所述注胶板适于附接到导流板上部并包括注胶孔，注胶孔适于与外部注射头连接以将胶料从外部注入导流板；所述注胶板设置有冷流道系统。
优选的，所述中板手模包括一个纵向延伸注胶通道或者间隔分布的两个或更多个纵向延伸注胶通道。
优选的，所述用于硫化橡胶手套的压铸成型模具包括从每个纵向延伸注胶通道延伸出的多个横向延伸注胶通道。
优选的，所述纵向延伸注胶通道在竖直方向上延伸，所述横向延伸注胶通道在水平方向上延伸。
优选的，所述多个横向延伸注胶通道延伸到的多个出胶口交错分布在所述中板手模表面。
优选的，所述纵向延伸注胶通道直径为10-20mm，所述横向延伸通道直径为2-5mm。
优选的，所述用于硫化橡胶手套的压铸成型模具包括与一双手套相对应的一对中板手模，所述边板模具包括与一对中板手模相对应的两个内腔，所述一对中板手模适于分别安装到所述两个内腔中，形成一对手套的压铸成型腔。
优选的，所述中板手模的分隔元件包括分隔板，分隔板从所述中板手模的主体外延伸；当所述中板手模安装到所述边板模具的对应内腔中时，所述分隔板将对应的所述压铸成型腔分隔成左腔室和右腔室。
优选的，所述边板模具包括可彼此匹配安装的左边板模具和右边板模具；所述分隔板将与左边板模具和右边板模具对应的左腔室和右腔室分隔开。
优选的，其中所述压铸成型腔的厚度为0.2mm-1mm。
优选的，所述用于硫化橡胶手套的压铸成型模具还包括：不带分隔元件的第二手模，具有与所述中板手模的主体基本相同的形状，并适于安装到所述边板模具的内腔中。
优选的，所述边板模具的内表面具有适于与橡胶表面结合的特征。
优选的，所述导流板的导流通道将所述导流孔分别连通到一对中板手模的纵向延伸注胶通道。
根据本发明的另一个方面，提供一种用于硫化橡胶手套的压铸成型设备，包括：上述压铸成型模具；高压注入机构，用于将制备好的未硫化混炼胶料加压并注入到压铸成型模具的注胶孔；模具移动机构，用于按照预先设定的程序移动所述压铸成型模具的各个部分；和控制机构，用于控制模具移动机构和高压注入机构的操作。
优选的，所述压铸成型设备还包括加热设备，用于对未硫化混炼胶料进行加热。
虽然根据本发明的实施例表述为应用于压铸成型工艺，但同样可以适用于注射成型工艺；并且本发明的保护范围也意在覆盖这样的应用。
通过以下详细的描述并结合附图将更充分地理解本发明，其中相似的元件以相似的方式编号，其中：
图1是根据本发明一个实施例的硫化橡胶手套的压铸成型模具的分开状态示意图。
图2是根据本发明一个实施例的硫化橡胶手套的压铸成型模具的合模状态示意图。
图3是根据本发明一个实施例的硫化橡胶手套的压铸成型模具的另一分开状态示意图。
图4是根据本发明一个实施例的硫化橡胶手套的压铸成型模具的另一合模状态示意图。
图5是根据本发明一个实施例的硫化橡胶手套的压铸成型模具的完成后分开状态示意图。
图6是根据本发明一个实施例的硫化橡胶手套的压铸成型模具制造的橡胶手套示意图。
图7是根据本发明一个实施例的硫化橡胶手套的压铸成型模具的中板手模、导流板和注胶板的局部透视图，示出了导流通道和注胶通道在模具内的分布状况。
下面通过实施例，并结合附图，对本发明的技术方案作进一步详细的说明，但本发明不限于下面的实施例。
鉴于现有技术中通过浸沾工艺和一般模压工艺制造橡胶手套的缺陷，本发明提供了一种用于制造硫化橡胶手套的压铸成型模具，以及压铸成型设备。
根据本发明的技术方案可解决的技术问题例如包括：由于天然橡胶、合成橡胶流动性差(与PVC、TPR、TPU等热弹性体材料相比)，在薄制品(0.2-1毫米)模具内腔里流动很容易造成死胶、涨模、模芯偏移等问题；普通工艺很难生产带内衬的橡胶手套等。
通过本发明的模具或设备制造的橡胶手套，长度不限，可以到手腕，也可以到肩膀。厚度最薄可以做到0.2毫米。
图1至图7以优选的制造一对手套的方式为例进行说明，但本发明同样可以包括制造单只手套的实施例，在此情况下，只需要保留与一个手套相对应的特征，例如与一个手套对应的内腔和与一个手套对应的中板手模和手模等。
图1示出了根据本发明一个实施例的一种用于制造硫化橡胶手套的压铸成型模具非组装状态图。
该压铸成型模具包括组合式的边板模具41、42，组合状态下具有与人手形状基本对应的内腔。图1为不区分左手和右手的手套，在此情况下，边板模具41、42优选地为两个互相匹配并基本对称的对开式模具，相互之间可以通过匹配特征进行匹配，可以互相紧固在一起，例如通过液压机构将彼此压紧固定。
在其他实施例中，手套可以为区分左手和右手的手套，在此情况下，边板模具41、42互相匹配但并不对称。具体而言，内腔分配在两个边板模具41、42上的部分彼此不对称。
图1的压铸成型模具中，所述边板模具41、42包括与一副手套相对应的两个内腔，可以看出这两个内腔各有一半设置在边板模具41和边板模具42中。当所述边板模具41、42合模时，形成完整的两个内腔。
图1的压铸成型模具还可以包括带分隔元件33的中板手模31，具有与人手形状基本对应的主体34，和在主体上设置的分隔元件33。所述中板手模31适于安装到所述边板模具41、42中以在所述边板模具41、42的内腔的壁与所述中板手模31的主体34的外表面之间形成压铸成型腔。当中板手模和边板模具安装到位时，每个压铸成型腔被中板手模和边板模具分隔成两个部分。
中板手模的分隔元件优选为分隔板。分隔板可以位于中板手模主体厚度的中间位置，从所述中板手模的主体外延伸。当所述中板手模安装到所述边板模具的对应内腔中时，所述分隔板将对应的所述压铸成型腔分隔成左腔室和右腔室，即分别与边板模具41和边板模具42对应的左腔室和右腔室。分隔板的厚度例如可以为40mm或者略薄。
图1的压铸成型模具包括与一双手套相对应的一对中板手模31，所述一对中板手模31适于分别安装到所述边板模具41、42合模时形成的两个内腔中，形成一对手套的压铸成型腔。
如图7所示，所述中板手模31还包括：从中板手模的上部向下纵向延伸的纵向延伸注胶通道(进胶主料道)，和从所述纵向延伸注胶通道横向延伸到所述中板手模表面的出胶口71的横向延伸注胶通道。
根据本发明的压铸成型模具还包括适于安装到所述边板模具顶部以引导注入胶料的导流板21，所述导流板上设置有：导流孔22，适于注入胶料；和导流通道，所述导流通道将所述导流孔连通到所述纵向延伸注胶通道。
根据本发明的优选实施例，压铸成型模具还可以包括注胶板11，所述注胶板适于附接到导流板上部并包括注胶孔12，注胶孔适于与外部注射头连接以将胶料从外部注入导流板。所述注胶板可以设置有冷流道系统，用于对胶料进行冷却防止形成死胶。
图7是压铸成型模具组装状态下的示意性剖视图，示出了注胶孔、注胶通道之间相互连通的关系。在其他实施例中，注胶板可以和导流板形成为单个板，设置有注胶孔、导流通道和冷流道系统。
根据本发明，边板模具的顶部和导流板的底部，以及导流板的顶部和注胶板的底部具有彼此匹配的结合部位，注胶板适于通过所述结合部位合模到导流板的顶部，导流板适于通过所述结合部位合模到边板模具的顶部。图7中示意性地示出了彼此匹配的凹凸部分。也可以使用其他结合元件。
在本发明中，与单个手套对应的中板手模可以包括一个纵向延伸注胶通道或者间隔分布的两个或更多个纵向延伸注胶通道。图7示出的实施例中，中板手模包括与一副手
套相对应的两个中板手模，每个中板手模各包括一个纵向延伸注胶通道或者进胶主料道。
根据本发明的优选实施例，压铸成型模具还可以包括从每个纵向延伸注胶通道延伸出的多个横向延伸注胶通道。图7的实施例中，在与手掌根部和手指中部对应的位置，分别设置有横向延伸注胶通道。在与手臂对应的位置也设置有横向延伸注胶通道，图7示出为前后延伸。在其他实施例中，横向延伸注胶通道的延伸方向可以不同，甚至可以彼此交错。在横向延伸注胶通道上设置有出胶口71，胶料通过出胶口71进入压铸成型腔。
根据本发明的优选实施例，所述纵向延伸注胶通道在竖直方向上延伸，所述横向延伸注胶通道在水平方向上延伸。所述多个横向延伸注胶通道延伸到的多个出胶口交错分布在所述中板手模表面。
所述纵向延伸注胶通道直径为10-20mm，所述横向延伸通道直径为2-5mm。
当模具组装起来时，所形成的压铸成型腔的厚度为0.2mm-1mm。
根据本发明的优选实施例，压铸成型模具还可以包括不带分隔元件的第二手模51，具有与所述中板手模的主体34基本相同的形状，并适于安装到所述边板模具的内腔中。第二手模51可以用于向制造的手套添加手套内里，将在下面详细描述。
所述边板模具的内表面具有适于与橡胶表面结合的特征。例如其材质可以适于与橡胶结合，或者形成一定的纹理。
根据本发明，还提供一种用于硫化橡胶手套的压铸成型设备，包括根据本发明的压铸成型模具；高压注入机构，用于将制备好的未硫化混炼胶料加压并注入到压铸成型模具的注胶孔；模具移动机构，用于按照预先设定的程序移动所述压铸成型模具的各个部分，例如各种液压操作机构；和控制机构，用于控制模具移动机构和高压注入机构的操作。
所述的压铸成型设备还可以包括加热设备，用于对未硫化混炼胶料进行加热。
根据本发明的压铸成型模具、压铸成型设备的操作可以参见下述制造方法。
根据本发明的另一个方面，提供一种利用上述压铸成型设备制造硫化橡胶手套的方法，例如包括以下步骤：
1.将边板模具的各部分分离，并将带分隔元件的中板手模移动到边板模具的各部分之间。
2.合上边板模具以将带分隔元件的中板手模容纳在边板模具中的适当位置；此时可以通过适当的定位和卡紧装置将模具固定到位，例如液压或者机械定位和卡紧装置。
例如，带分隔元件的中板手模通过分其隔元件或定位台阶与边板模具的定位元件的接合而定位在边板模具中。可以在压铸成型设备中设置额外的固定装置将边板模具和中板手模固定到位。例如，可以设置液压定位装置。
图1示出了根据本发明一个实施例的带分隔元件的中板手模上的分隔元件和下部的定位台阶，以及边板模具下部的对应定位台阶。
3.将导流板定位并固定在边板模具顶部上，并将注胶板定位固定到导流板顶部。
如上所述，导流板的下部和边板模具的顶部可以设置能够彼此接合的定位元件。可以在压铸成型设备中设置额外的固定装置将导流板、注胶板和边板模具固定到位。例如，可以设置液压定位装置。此时，注胶板的注胶通道的出口连通到导流板，进而连通到中板手模顶部的纵向注胶通道的入口。
图7示出了此状态下注胶板、导流板和边板模具的定位，及注胶孔与注胶通道的连通状态。
4.向注胶板的注胶孔注胶(注入未硫化混炼胶料)，并由此通过注胶板和导流板的注胶通道向中板手模的纵向注胶通道注入未硫化混炼胶料，进而向横向注胶通道注入未硫化混炼胶料，使得未硫化混炼胶料进入边板模具与带分隔元件的中板手模之间的压铸成型腔。
注胶机构可以保持高压以实现未硫化混炼胶料的注胶过程。此时，由于交错分布在中板手模表面上的注胶出口将未硫化混炼胶料引导到分隔开的压铸成型腔中，有助于降低注胶所需压力和将未硫化混炼胶料均匀分配到压铸成型腔中。可以对注胶机构中的未硫化混炼胶料进行适当加热，以提高其流动性。
注胶板中可以设置有冷流道系统防止形成死胶。
5.打开边板模具，撤出带分隔元件的中板手模。
此时由于未硫化混炼胶料在压力和温度作用下在分隔开的压铸成型腔中成型，分别形成每个手套的分离的两部分61。当撤出带分隔元件的中板手模时，这些部分61保持与边板模具的相应部分继续贴合在一起。例如，这可以通过选择边板模具和带分隔元件的中板手模的材料来实现，例如边板模具的内表面具有更粗糙的表面等；也可以通过中板手模和边板模具之间的温度差来实现；或者通过在边板模具的内表面上设置易于结合橡胶手套部分的特征(例如某些纹理)来实现。
6.将不带分隔元件的第二手模套上手套内里，并移动到边板模具之间。
图3示出了此时的状态。
7.合上边板模具以将不带分隔元件的第二手模容纳在边板模具中的适当位置。
图4示出了此时的状态。
第二手模在边板模具中的定位与上述带分隔元件的中板手模类似。
此时，边板模具合模，与不带分隔元件的第二手模一起对橡胶手套的各个部分和手套内里加压以贴合在一起。
由于边板模具具有组合式设计，即包括两个部分，边板模具的各部分可以分开以放置中板手模或第二手模，可以合上以与带分隔元件的中板手模配合形成分隔开的压铸成型腔，或者与不带分隔元件的第二手模配合形成完整的手套成型腔。当撤出带分隔元件的中板手模时，所形成的每个手套的两个分离部分留在边板模具的各部分上，当插入带手套内里的第二手模并合上边板模具的各部分后，所形成的手套的两个分离部分可以彼此接合，并且与手套内里接合。
可以通过在第二手模内设置充气通道，通过外部气压源提供高压气体，在合上模具后向第二手模表面提供加压气体，以将第二手模表面套上的手套内里压向橡胶手套内表面，促进互相贴合。
8.将未硫化混炼胶料进行硫化。
例如，通过在模具附近设置加热设备，向合上的模具加热从而对橡胶手套和第二手模加热，并通过上述加压气体对橡胶手套加压，来进行硫化。此时，橡胶手套的各个部分以及手套内里一起形成完整的橡胶手套。图5示出了此步骤完成后从边板模具中撤出的第二手模，上面已经形成一副手套。
图6示出了根据本发明制造的一副硫化橡胶手套。
本发明的实施方式并不限于上述实施例所述，在不偏离本发明的精神和范围的情况下，本领域普通技术人员可以在形式和细节上对本发明做出各种改变和改进，而这些均被认为落入了本发明的保护范围。
Claims (16)
- 一种用于硫化橡胶手套的压铸成型模具，包括：组合式的边板模具，组合状态下具有与人手形状基本对应的内腔；带分隔元件的中板手模，具有与人手形状基本对应的主体，和在主体上设置的分隔元件，所述中板手模适于安装到所述边板模具中以在所述边板模具的内腔的壁与所述中板手模的主体的外表面之间形成压铸成型腔，所述压铸成型腔被所述中板手模和所述边板模具分隔成两个部分，其中所述中板手模还包括：从中板手模的上部向下纵向延伸的纵向延伸注胶通道，和从所述纵向延伸注胶通道横向延伸到所述中板手模表面的出胶口的横向延伸注胶通道；和适于安装到所述边板模具顶部以引导注入胶料的导流板，所述导流板上设置有：导流孔，适于注入胶料；和导流通道，所述导流通道将所述导流孔连通到所述纵向延伸注胶通道。
- 根据权利要求1所述的用于硫化橡胶手套的压铸成型模具，还包括注胶板，所述注胶板适于附接到导流板上部并包括注胶孔，注胶孔适于与外部注射头连接以将胶料从外部注入导流板；所述注胶板设置有冷流道系统。
- 根据权利要求1或2所述的用于硫化橡胶手套的压铸成型模具，所述中板手模包括一个纵向延伸注胶通道或者间隔分布的两个或更多个纵向延伸注胶通道。
- 根据权利要求1或2所述的用于硫化橡胶手套的压铸成型模具，包括从每个纵向延伸注胶通道延伸出的多个横向延伸注胶通道。
- 根据权利要求1-4中任一项所述的用于硫化橡胶手套的压铸成型模具，所述纵向延伸注胶通道在竖直方向上延伸，所述横向延伸注胶通道在水平方向上延伸。
- 根据权利要求4所述的用于硫化橡胶手套的压铸成型模具，所述多个横向延伸注胶通道延伸到的多个出胶口交错分布在所述中板手模表面。
- 根据权利要求1-4中任一项所述的用于硫化橡胶手套的压铸成型模具，所述纵向延伸注胶通道直径为10-20mm，所述横向延伸通道直径为2-5mm。
- 根据权利要求1-7中任一项所述的用于硫化橡胶手套的压铸成型模具，包括与一双手套相对应的一对中板手模，所述边板模具包括与一对中板手模相对应的两个内腔，所述一对中板手模适于分别安装到所述两个内腔中，形成一对手套的压铸成型腔。
- 根据权利要求1-8中任一项所述的用于硫化橡胶手套的压铸成型模具，其中，所述中板手模的分隔元件包括分隔板，分隔板从所述中板手模的主体外延伸；当所述中板手模安装到所述边板模具的对应内腔中时，所述分隔板将对应的所述压铸成型腔分隔成左腔室和右腔室。
- 根据权利要求9所述的用于硫化橡胶手套的压铸成型模具，所述边板模具包括可彼此匹配安装的左边板模具和右边板模具；所述分隔板将与左边板模具和右边板模具对应的左腔室和右腔室分隔开。
- 根据权利要求1-10中任一项所述的用于硫化橡胶手套的压铸成型模具，其中所述压铸成型腔的厚度为0.2mm-1mm。
- 根据权利要求1-11中任一项所述的用于硫化橡胶手套的压铸成型模具，还包括：不带分隔元件的第二手模，具有与所述中板手模的主体基本相同的形状，并适于安装到所述边板模具的内腔中。
- 根据权利要求1-12中任一项所述的用于硫化橡胶手套的压铸成型模具，所述边板模具的内表面具有适于与橡胶表面结合的特征。
- 根据权利要求8所述的用于硫化橡胶手套的压铸成型模具，所述导流板的导流通道将所述导流孔分别连通到一对中板手模的纵向延伸注胶通道。
- 一种用于硫化橡胶手套的压铸成型设备，包括：根据权利要求1-14中任一项所述的压铸成型模具；高压注入机构，用于将制备好的未硫化混炼胶料加压并注入到压铸成型模具的注胶孔；模具移动机构，用于按照预先设定的程序移动所述压铸成型模具的各个部分；和控制机构，用于控制模具移动机构和高压注入机构的操作。
- 根据权利要求15所述的压铸成型设备，还包括加热设备，用于对未硫化混炼胶料进行加热。
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| JP2007061867A (ja) * | 2005-08-31 | 2007-03-15 | Asahi:Kk | ダイカスト金型及びダイカスト金型の製造方法 |
| CN111284053A (zh) * | 2018-12-07 | 2020-06-16 | 北京东石联合贸易有限公司 | 硫化橡胶靴及其压铸成型模具、制造设备和制造方法 |
| CN114589943A (zh) * | 2022-03-23 | 2022-06-07 | 成都飞机工业（集团）有限责任公司 | 一种树脂传递模塑用t形筋注胶模具 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007061867A (ja) * | 2005-08-31 | 2007-03-15 | Asahi:Kk | ダイカスト金型及びダイカスト金型の製造方法 |
| CN111284053A (zh) * | 2018-12-07 | 2020-06-16 | 北京东石联合贸易有限公司 | 硫化橡胶靴及其压铸成型模具、制造设备和制造方法 |
| CN114589943A (zh) * | 2022-03-23 | 2022-06-07 | 成都飞机工业（集团）有限责任公司 | 一种树脂传递模塑用t形筋注胶模具 |
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