WO2014114073A1 - 吸塑成型模具 - Google Patents

吸塑成型模具 Download PDF

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Publication number
WO2014114073A1
WO2014114073A1 PCT/CN2013/080959 CN2013080959W WO2014114073A1 WO 2014114073 A1 WO2014114073 A1 WO 2014114073A1 CN 2013080959 W CN2013080959 W CN 2013080959W WO 2014114073 A1 WO2014114073 A1 WO 2014114073A1
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WIPO (PCT)
Prior art keywords
stopper
plastic
groove
forming mold
plastic forming
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PCT/CN2013/080959
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English (en)
French (fr)
Inventor
曹杭生
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苏州宏远电子有限公司
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Application filed by 苏州宏远电子有限公司 filed Critical 苏州宏远电子有限公司
Publication of WO2014114073A1 publication Critical patent/WO2014114073A1/zh

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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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof

Definitions

  • the present invention relates to a plastic forming mold, and more particularly to a vacuum forming mold for processing a plastic member having a support portion on a side wall of an instrument cover or the like.
  • Vacuum forming technology is widely used in the molding of plastic parts due to its simple mold and convenient operation.
  • the instrument cover, the electronic tray, and the like are generally processed by a plastic forming mold.
  • a bevel having a dip angle is generally provided on the mold, and the plastic member is detached along the slope during the demolding process.
  • the side is composed of only one flat plastic sheet, although it is convenient to process and shape, the side is easily deformed by an external force, thereby causing the instrument cover to have low strength and easy Deformation.
  • such electronic trays crush the electronic components when stacked in the same direction.
  • the electronic tray compartment is rotated and staggered by 180 degrees, although the above problems can be avoided, the complexity of the operation is increased.
  • Another structure is to provide an undercut on the side wall of the electronic tray to achieve a supporting effect.
  • the bottleneck is that if the support effect is good, the buckle must be large, but the big buckle is not easy to demould, and the defective product is produced.
  • the small support surface is small and can not support the effect, and it will also damage the storage electronics. Electronic components in the tray.
  • an object of the present invention is to provide a plastic forming mold which is easy to demold and which is not easily deformed and has high strength, and can maximize the co-directional support area to achieve a strong forward stacking.
  • the technical solution adopted by the present invention is: a plastic forming mold, wherein the plastic part formed by the mold is demoulded from bottom to top, and the plastic forming mold comprises:
  • a body a side wall of the body corresponding to the shape of the plastic member to be formed is formed with a groove for forming a support portion of the plastic member, the upper end of the groove is open to the upper;
  • a stopper that is rotatably coupled to the body in an up-and-down direction, the stopper being located above the groove, and the position at which the stopper is connected to the body avoids the groove, and the plastic member moves upward and leaves during the demolding process
  • the groove pushes the stopper upwards at the same time.
  • the stop has two working positions, in the first working position, the block is pressed against the plastic part to be formed above the groove, and in the second working position, the block opens a space relative to the groove of the body.
  • the plastic member can be detached from the mold through the space, and the stopper has a tendency to reset to the first working position under its own gravity.
  • the plastic forming mold further includes a reset member for resetting the stopper.
  • the reset member is an elastic member.
  • the elastic member is a compression spring
  • the stopper has a first end and a second end respectively on opposite sides of the position where the rotatably connected to the body, the first end of the stopper is located corresponding to the position of the groove On one side, the second end of the stopper is located on the side of the groove, and the compression spring is disposed between the body and the second end of the stopper.
  • the elastic member is a tension spring
  • the stopper has a first end and a second end respectively on opposite sides of the position where the rotatably connected to the body, the first end of the stopper is located corresponding to the position of the groove On one side, the second end of the stopper is located on the side of the groove, and the tension spring is disposed between the body and the first end of the stopper.
  • the restoring member is a magnet member having a first end and a second end on opposite sides of the position in which the body is rotatably coupled to the body, the first end of the stopper being located in the recess On the side corresponding to the position, the second end of the stopper is located on the side of the groove, and the first end of the stopper is made of iron or an iron alloy.
  • the shortest distance between the body of the upper end side of the groove and the lower surface of the stopper portion directly above it is smaller than the thickness of the plastic sheet before the plastic forming process is performed to prevent plastic during the blister process
  • the sheet is drawn between the stop and the gap of the body.
  • the body comprises a fixing portion and a detaching portion detachably disposed on the fixing portion, and the side wall of the detaching portion is provided with a groove, and the stopper is rotatably disposed on the detaching portion.
  • the detaching portion is connected to the fixed portion of the body by a screw, and can also be engaged with the fixed portion of the body.
  • a groove or stopper is worn or cannot be used due to damage caused by other factors, the corresponding disassembly portion can be removed from the body to replace the new disassembly portion.
  • the detached portion can be removed and the damaged fixed portion can be discarded, and the detached portion can be attached to the intact fixed portion for repeated use.
  • a plurality of grooves are formed on the side wall of the body, and each of the grooves is provided with a stopper corresponding thereto.
  • the invention adopts the above structure and has the following advantages: the stopper is disposed above the groove and is rotatably disposed relative to the mold body along the demolding direction, and when the mold is released, the plastic member drives the stopper to rotate upward and then disengage from the mold, so that the plastic is blister
  • the plastic parts processed by the forming mold are easy to demould, and the stoppers are automatically reset; the side of the processed plastic parts has a plurality of recessed support portions, and the area of the support surface is increased, which enhances the strength of the plastic parts, is not easily deformed, and is stacked in the same direction.
  • the recess is disposed on the detachable portion detachably connected to the body for easy replacement, and the entire blister forming mold is not scrapped due to wear of one of the grooves or the stopper.
  • Fig. 1 is a front view of a plastic forming mold according to a first embodiment of the present invention.
  • Fig. 2 is a schematic view showing the structure of a plastic forming mold according to Embodiment 1 of the present invention.
  • Fig. 3 is a schematic view showing the structure of a plastic forming mold according to a second embodiment of the present invention.
  • Figure 4 is a schematic view showing the structure of a plastic forming mold of Example 3 of the present invention.
  • Figure 5 is a schematic view showing the structure of a plastic forming mold of Example 4 of the present invention.
  • Fig. 6 is a schematic view showing the structure of a plastic forming mold according to a fifth embodiment of the present invention.
  • a plastic forming mold is formed, and the plastic member formed by the mold is demoulded from bottom to top.
  • the plastic forming mold comprises:
  • the main body is mainly composed of two parts, namely, a fixing portion 1 and a detaching portion 2 detachably disposed on the fixing portion 1.
  • the side wall of the detaching portion 2 is formed with a groove 3 for the groove 3 a support portion for molding a plastic part;
  • the stopper 4 is rotatably disposed on the detaching portion 2, and the stopper 4 is located above the groove 3.
  • the plastic member drives the stopper 4 to rotate upward and then disengage from the mold.
  • the center of gravity of the stopper 4 is still on the side of the recess 3, so that the stopper 4 is reset by its own gravity after the plastic member is separated from the mold.
  • the detaching portion 2 is detachably connected to the fixed portion 1 by screws, and can also be engaged with the fixed portion 1.
  • the corresponding disassembling portion 2 can be removed from the body, and the new disassembling portion can be replaced without scraping the entire plastic forming due to wear of one of the grooves. Mold.
  • the shortest distance between the detaching portion 2 of the upper end portion of the groove 3 and the lower surface of the portion of the stopper 4 directly above it is smaller than the thickness of the plastic sheet to prevent the plastic sheet during the blister process.
  • the material is drawn into the gap between the block 4 and the body.
  • a plurality of detaching portions 2 are detachably provided on the fixed portion 1 of the body, and a stopper 4 corresponding thereto is disposed above the groove 3 of each detaching portion 2.
  • the stopper 4 is relatively prone to wear. When the stopper 4 is worn and affects the processing quality, the detaching portion 2 can be removed from the body and a new detaching portion can be attached to the new fixing portion 1 to constitute a new usable. In this way, when the stopper 4 fails, it is not necessary to replace the entire mold, and only the removal portion 2 needs to be replaced to continue the processing.
  • a plastic forming mold is formed, and the plastic member formed by the mold is demoulded from bottom to top.
  • the plastic forming mold comprises:
  • the main body is different from the first embodiment in that the main body of the embodiment is mainly composed of a fixing portion 1 and has no disassembling portion.
  • the side wall of the main body is formed with a groove 3 for forming a supporting portion of the plastic member. ;
  • the block 4 is rotatable relative to the body, and the block 4 is located above the groove 3.
  • the plastic forming mold further includes a compression spring 5 for resetting the stopper 4, the stopper 4 having a first end 41 that rotates upward when the plastic member is demolded, and a first rotation that rotates when the plastic member is released from the mold
  • a compression spring 5 is disposed between the body and the second end 42 of the block 4.
  • the shortest distance between the body of the upper end side of the groove 3 and the lower surface of the portion of the stopper 4 located directly above it is smaller than the thickness of the plastic sheet to prevent the plastic sheet from being viscous during the blister process.
  • the suction block 4 is between the gap of the body.
  • a plurality of grooves 3 are formed on the side wall of the body, and each of the grooves 3 is provided with a stopper 4 corresponding thereto.
  • the plastic forming mold comprises:
  • the body is similar to the embodiment 2, the body is mainly composed of the fixing portion 1, and does not include the disassembling portion.
  • the side wall of the body 1 is formed with a groove 3 for forming a supporting portion of the plastic member;
  • the stopper 4 is rotatable relative to the body 1 and the stopper 4 is located above the groove 3.
  • the plastic forming mold further includes a tension spring 6 for resetting the stopper 4, the stopper 4 having a first end 41 that rotates upward when the plastic member is demolded and a second end that rotates downward when the plastic member is demolded
  • a tension spring 6 is disposed between the body and the first end 41 of the stopper 4.
  • the shortest distance between the body of the upper end side of the groove 3 and the lower surface of the portion of the stopper 4 located directly above it is smaller than the thickness of the plastic sheet to prevent the plastic sheet from being viscous during the blister process.
  • the suction block 4 is spaced between the gap of the body 1.
  • a plurality of grooves 3 are formed on the side wall of the body, and each of the grooves 3 is provided with a stopper 4 corresponding thereto.
  • a plastic forming mold is obtained by demoulding a plastic part from the bottom to the top, the plastic forming mold comprising:
  • the main body is mainly composed of a fixing portion 1 and does not include a disassembling portion.
  • the side wall of the body is formed with a groove 3 for forming a supporting portion of the plastic member;
  • the stop 4 is rotatable relative to the body 1, and the stop 4 is located above the recess 3
  • the plastic forming mold also includes a magnet member 7 for resetting the stopper 4.
  • the stopper 4 has a first end 41 that rotates upward when the plastic part is demolded and a second end 42 that rotates downward when the plastic part is demolded, and the first end 41 and the second end 42 are respectively rotated by the stopper 4 and the body. The opposite sides of the connected position.
  • the first end 41 of the stop 4 is made of iron or an iron alloy, and the magnet member 7 is disposed between the body and the first end 41 of the stop 4. After the plastic member is released from the mold, the suction of the magnet member 7 causes the first end 41 of the stopper 4 to rotate downward to reset the stopper 4.
  • the shortest distance between the body of the upper end side of the groove 3 and the lower surface of the portion of the stopper 4 located directly above it is smaller than the thickness of the plastic sheet to prevent the plastic sheet from being viscous during the blister process.
  • the suction block 4 is spaced between the gap of the body 1.
  • a plurality of grooves 3 are formed on the side wall of the body 1, and each of the grooves 3 is provided with a stopper 4 corresponding thereto.
  • the plastic member formed by the mold is demolded from the bottom up.
  • This embodiment is similar to the embodiment 2 shown in FIG. 3 and the embodiment 3 shown in FIG. 4, except that the reset of the stopper 4 in the present embodiment is realized by the spring wire 8.
  • a spring wire 8 is disposed between the body and the first end 41 of the stop 4.
  • the applicable elastic member is a spring wire
  • other elastic members such as spring washers can also achieve the corresponding effects, and should also be included in the protection scope of the present invention.
  • the demolding is easy and the processed plastic parts are not easily deformed and have high strength, and the same direction supporting area can be maximized, and the strong forward stacking which cannot be achieved by the conventional blister parts can be achieved. In this way of design, it is close to the quality of the injection molded parts.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

本发明涉及一种吸塑成型模具，尤其是一种用于加工仪表外罩、电子托盘等侧壁具有支撑部的塑料件的真空吸塑成型模具，通过该模具成型的塑料件自下而上完成脱模，模具包括：本体，本体的侧壁上形成有凹槽，该凹槽用于形成塑料件的支撑部；挡块，该挡块可相对本体转动，挡块位于凹槽的上方；在脱模过程中，塑料件带动挡块向上转动后脱离模具。本发明的目的是提供一种吸塑成型模具，其脱模容易且加工出的塑料件不易变形、强度较高，可最大程度地增大同向支撑面积，达到强力正向堆叠。

Description

吸塑成型模具
技术领域
本发明涉及一种吸塑成型模具，尤其是一种用于加工仪表外罩等侧壁具有支撑部的塑料件的真空吸塑成型模具。
背景技术
真空吸塑成型技术因其模具简单和操作方便广泛应用于塑料件成型。现有技术中，仪表外罩、电子托盘等一般是通过吸塑成型模具加工而成。传统工艺中，为了防止塑料件不能从模具中脱离，在模具上一般设置有一个带有倾角的斜面，在脱模过程中，塑料件顺着斜面脱离。而对于仪表外罩、电子托盘等，如果其侧边仅由一个平面的塑料片材构成，虽然其加工成型较为方便，但其侧边容易受到外力作用而产生变形，因而造成仪表外罩强度低且易变形。此外，该类电子托盘在同向堆叠时会压坏电子元件。而若使电子托盘隔层180度旋转交错堆叠，虽然可以避免上述问题，但增加了操作的复杂度。
另一种结构是在电子托盘的侧壁上设置倒扣，以达到支撑效果。但瓶颈是要想支撑效果好倒扣就必须要大，但倒扣大就不容易脱模，进而产生不良品；倒扣小支撑面就小，又起不到支撑效果，同样会损坏存放电子托盘中电子元件。
发明内容
针对上述问题，本发明的目的是提供一种吸塑成型模具，其脱模容易且加工出的塑料件不易变形、强度较高，可最大程度地增大同向支撑面积，达到强力正向堆叠。
为解决上述技术问题，本发明采用的技术方案为：一种吸塑成型模具，通过该模具成型的塑料件自下而上完成脱模，吸塑成型模具包括：
本体，本体的侧面外壁上对应于待成型塑料件的形状形成有凹槽，该凹槽用于成型塑料件的支撑部，凹槽的上端为对上方开放的；
挡块，该挡块可沿上下方向转动地连接于本体，挡块位于凹槽的上方，且挡块与本体相连接的位置避开凹槽，在脱模过程中，塑料件向上移动而离开凹槽的同时推动挡块向上转动。出模时，成型的塑料件从凹槽中自下而上移动，使得塑料件脱模容易。
优选地，挡块具有两个工作位置，在第一工作位置，挡块在凹槽的上方用于压着待成形塑料件，在第二工作位置，挡块相对本体的凹槽部位打开一空间，使得塑料件可通过该空间脱离模具，且挡块在其自身重力作用下具有复位至第一工作位置的趋势。
优选地，该吸塑成型模具还包括一用于将挡块复位的复位件。
进一步优选地，复位件为弹性件。
更进一步地，弹性件为压簧，挡块具有分别处于其与本体相转动连接的位置的相反两侧的第一端和第二端，挡块的第一端位于与凹槽位置相对应的一侧，挡块的第二端位于凹槽旁侧，压簧设置在本体与挡块的第二端之间。在塑料件脱离模具时，挡块的第一端受塑料件的支撑部带动向上转动，挡块的第二端向下转动压缩压簧；塑料件脱离模具后，弹簧的复位力推动挡块的第二端向上转动从而使挡块复位。
更进一步地，弹性件为拉簧，挡块具有分别处于其与本体相转动连接的位置的相反两侧的第一端和第二端，挡块的第一端位于与凹槽位置相对应的一侧，挡块的第二端位于凹槽旁侧，拉簧设置在本体与挡块的第一端之间。在塑料件脱离模具时，挡块的第一端受塑料件的支撑部带动向上转动，拉簧被拉伸；塑料件脱离模具后，弹簧的复位力拉动挡块的第一端向下转动从而使挡块复位。
在另一种实施例中，复位件为磁铁件，挡块具有分别处于其与本体相转动连接的位置的相反两侧的第一端和第二端，挡块的第一端位于与凹槽位置相对应的一侧，挡块的第二端位于凹槽旁侧，挡块的第一端由铁或铁合金制成。在塑料件脱离模具时，挡块的第一端受塑料件的支撑部带动向上转动；塑料件脱离模具后，磁铁件的吸力带动挡块的第一端向下转动从而使挡块复位。
优选地，在进行吸塑成型工序前，凹槽上端侧部的本体与位于其正上方的挡块部分的下表面之间的最短距离小于塑料片材的厚度，以防止在吸塑过程中塑料片材被吸入挡块与本体的缝隙之间。
优选地，本体包括一固定部分和一可拆卸地设置于该固定部分的拆卸部，拆卸部的侧壁上设置有凹槽，挡块可转动地设置于拆卸部上。拆卸部通过螺钉与本体的固定部分连接，也可与本体的固定部分相卡接。当某个凹槽、挡块磨损或因其他因素产生损伤而不能使用时，可将相应的拆卸部从本体上拆除，更换新的拆卸部。而当模具本体的固定部分产生损伤时，可将拆卸部拆下后丢弃掉损坏的固定部分，而将拆卸部安装到完好的固定部分上重复使用。
优选地，所述本体的侧壁上形成有多个凹槽，每个凹槽的上方都设置有与其相对应的挡块。
本发明采用以上结构，具有如下优点：挡块设置在凹槽的上方且相对模具本体沿脱模方向可转动设置，在脱模时，塑料件带动挡块向上转动后脱离模具，使得由吸塑成型模具加工的塑料件脱模容易，同時挡块自动复位；加工出的塑料件侧面具有若干凹陷进去的支撑部，支撑面的面积增大，增强了塑料件的强度、不易变形、同向堆叠强度，从而保护内装的电子元件不被损坏；凹槽设置在与本体可拆卸连接的拆卸部上，方便更换，不会因其中一个凹槽或挡块磨损而报废整个吸塑成型模具。
附图说明
图1为本发明实施例1的吸塑成型模具的主视图。
图2为本发明实施例1的吸塑成型模具的结构示意图。
图3为本发明实施例2的吸塑成型模具的结构示意图。
图4为本发明实施例3的吸塑成型模具的结构示意图。
图5为本发明实施例4的吸塑成型模具的结构示意图。
图6为本发明实施例5的吸塑成型模具的结构示意图。
其中：1、固定部分；2、拆卸部；3、凹槽；4、挡块；41、第一端；42、第二端；5、压簧；6、拉簧；7、磁铁件；8、弹簧丝。
具体实施方式
下面结合附图对本发明的较佳实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域的技术人员理解，从而对本发明的保护范围作出更为清楚明确的界定。
实施例1
参照附图1、附图2所示，一种吸塑成型模具，该模具形成的塑料件自下而上完成脱模，所述吸塑成型模具包括：
本体，所述本体主要由两部分构成，即固定部分1和可拆卸地设置于固定部分1上的拆卸部2，所述拆卸部2的侧壁上形成有凹槽3，该凹槽3用于成型塑料件的支撑部；
挡块4，该挡块4可转动地设置于拆卸部2上，挡块4位于凹槽3的上方。
在脱模过程中，塑料件带动挡块4向上转动后脱离模具。当塑料件可以脱离模具时，挡块4的重心仍处于偏向凹槽3的一侧，因而，在塑料件脱离模具后，挡块4借由其自身重力复位。
所述拆卸部2通过螺钉与固定部分1可拆卸连接，也可与固定部分1卡接设置。当某个凹槽3磨损或因其他因素产生损伤而不能使用时，可将相应的拆卸部2从本体上拆除，更换新的拆卸部，不会因其中一个凹槽磨损而报废整个吸塑成型模具。
在吸塑成型前，凹槽3上端侧部的拆卸部2与位于其正上方的挡块4部分的下表面之间的最短距离小于塑料片材的厚度，以防止在吸塑过程中塑料片材被吸入挡块4与本体之间的缝隙内。
本体的固定部分1上可拆卸地设置有多个拆卸部2，每个拆卸部2的凹槽3的上方都设置有与其相对应的挡块4。挡块4是比较容易发生磨损的，当挡块4出现磨损并影响加工质量时，可将拆卸部2从本体中拆除并将新的拆卸部安装到新的固定部分1上以构成新的可用本体，采用这种方式，当挡块4出现故障时，不必更换整个模具，只需要更换拆卸部2就能继续进行加工。
实施例2
参照附图3所示，一种吸塑成型模具，该模具形成的塑料件自下而上完成脱模，所述吸塑成型模具包括：
本体，与实施例1不同的是，本实施例中的本体主要由固定部分1构成，没有拆卸部，本体的侧壁上形成有凹槽3，该凹槽3用于形成塑料件的支撑部；
挡块4，该挡块4可相对本体转动，挡块4位于凹槽3的上方
吸塑成型模具还包括一用于将所述挡块4复位的压簧5，挡块4具有在塑料件脱模时向上转动的第一端41和在塑料件脱模时向下转动的第二端42，压簧5设置在本体与挡块4的第二端42之间。在塑料件脱离模具时，挡块4的第一端41受塑料件的支撑部带动向上转动，挡块4的第二端42向下转动压缩压簧5；塑料件脱离模具后，压簧5的复位力推动挡块4的第二端42向上转动从而使挡块4复位。
在吸塑成型前，凹槽3上端侧部的本体与位于其正上方的挡块4部分的下表面之间的最短距离小于塑料片材的厚度，以防止在吸塑过程中塑料片材被吸入挡块4与本体的缝隙之间。
本体的侧壁上形成有多个凹槽3，每个凹槽3的上方都设置有与其相对应的挡块4。
实施例3
参照附图4所示，一种吸塑成型模具，该模具形成的塑料件自下而上完成脱模，所述吸塑成型模具包括：
本体，与实施例2相似，本体主要由固定部分1构成，不含拆卸部，本体1的侧壁上形成有凹槽3，该凹槽3用于成型塑料件的支撑部；
挡块4，该挡块4可相对本体1转动，挡块4位于凹槽3的上方。
吸塑成型模具还包括一用于将挡块4复位的拉簧6，挡块4具有在塑料件脱模时向上转动的第一端41和在塑料件脱模时向下转动的第二端42，拉簧6设置在本体与挡块4的第一端41之间。在塑料件脱离模具时，挡块4的第一端41受塑料件的支撑部带动向上转动，拉簧6被拉伸；塑料件脱离模具后，拉簧6的复位力拉动挡块4的第一端41向下转动从而使挡块4复位。
在吸塑成型前，凹槽3上端侧部的本体与位于其正上方的挡块4部分的下表面之间的最短距离小于塑料片材的厚度，以防止在吸塑过程中塑料片材被吸入挡块4与本体1的缝隙之间。
本体的侧壁上形成有多个凹槽3，每个凹槽3的上方都设置有与其相对应的挡块4。
实施例4
参照附图5所示，一种吸塑成型模具，通过该模成型的塑料件自下而上完成脱模，所述吸塑成型模具包括：
本体，本体主要由固定部分1构成，不含拆卸部，本体的侧壁上形成有凹槽3，该凹槽3用于成型塑料件的支撑部；
挡块4，该挡块4可相对本体1转动，挡块4位于凹槽3的上方
吸塑成型模具还包括一用于将挡块4复位的磁铁件7。挡块4具有在塑料件脱模时向上转动的第一端41和在塑料件脱模时向下转动的第二端42，第一端41和第二端42分别处于挡块4与本体转动连接的位置的相反两侧。挡块4的第一端41由铁或铁合金制成，磁铁件7设置在本体与挡块4的第一端41之间。塑料件脱离模具后，磁铁件7的吸力带动挡块4的第一端41向下转动从而使挡块4复位。
在吸塑成型前，凹槽3上端侧部的本体与位于其正上方的挡块4部分的下表面之间的最短距离小于塑料片材的厚度，以防止在吸塑过程中塑料片材被吸入挡块4与本体1的缝隙之间。
本体1的侧壁上形成有多个凹槽3，每个凹槽3的上方都设置有与其相对应的挡块4。
实施例5
参照附图6所示的一种吸塑成型模具，通过该模具成型的塑料件自下而上完成脱模。
本实施例与图3所示的实施例2及图4所示的实施例3相似，所不同的是，本实施例中的挡块4的复位由弹簧丝8来实现。
弹簧丝8设置在本体与挡块4的第一端41之间。在塑料件脱离模具时，挡块4的第一端受塑料件的支撑部带动向上转动，弹簧丝8被拉伸；塑料件脱离模具后，通过弹簧丝8的复位力拉动挡块4的第一端向下转动从而使挡块4复位。
本实施例中，适用的弹性件为弹簧丝，其他弹性件诸如弹簧垫片同样可以达到相应的效果，也应纳入本发明的保护范围之内。
上述实施例的吸塑成型模具，其脱模容易且加工出的塑料件不易变形、强度较高，可最大程度的增大同向支撑面积，能达到以往吸塑件无法达到的强力正向堆叠。以此种设计方式，近乎接近注塑件的品质状况。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (10)

1、一种吸塑成型模具，通过该模具成型的塑料件自下而上完成脱模，其特征在于，所述吸塑成型模具包括：
本体，所述本体的侧面外壁上对应于待成型塑料件的形状形成有凹槽，该凹槽用于成型塑料件的支撑部，凹槽的上端为对上方开放的；
挡块，该挡块可沿上下方向转动地连接于本体，所述挡块位于凹槽的上方，且挡块与本体相连接的位置避开凹槽，在脱模过程中，塑料件向上移动而离开凹槽的同时推动挡块向上转动。
2、根据权利要求1所述的吸塑成型模具，其特征在于：挡块具有两个工作位置，在第一工作位置，挡块在凹槽的上方用于压着待成形塑料件，在第二工作位置，挡块相对本体的凹槽部位打开一空间，使得塑料件可通过该空间脱离模具，且挡块在其自身重力作用下具有复位至第一工作位置的趋势。
3、根据权利要求1或2所述的吸塑成型模具，其特征在于：它还包括一用于将所述挡块复位的复位件。
4、根据权利要求3所述的吸塑成型模具，其特征在于：所述复位件为弹性件。
5、根据权利要求4所述的吸塑成型模具，其特征在于：所述弹性件为压簧，所述挡块具有分别处于其与本体相转动连接的位置的相反两侧的第一端和第二端，挡块的第一端位于与凹槽位置相对应的一侧，挡块的第二端位于凹槽旁侧，所述压簧设置在所述本体与所述挡块的第二端之间。
6、根据权利要求4所述的吸塑成型模具，其特征在于：所述弹性件为拉簧，所述挡块具有分别处于其与本体相转动连接的位置的相反两侧的第一端和第二端，挡块的第一端位于与凹槽位置相对应的一侧，挡块的第二端位于凹槽旁侧，所述拉簧设置在所述本体与所述挡块的第一端之间。
7、根据权利要求3所述的吸塑成型模具，其特征在于：所述复位件为磁铁件，所述挡块具有分别处于其与本体相转动连接的位置的相反两侧的第一端和第二端，挡块的第一端位于与凹槽位置相对应的一侧，挡块的第二端位于凹槽旁侧，所述挡块的第一端由铁或铁合金制成。
8、根据权利要求1所述的吸塑成型模具，其特征在于：在进行吸塑成型工序前，凹槽上端侧部的本体与位于其正上方的挡块部分的下表面之间的最短距离小于塑料片材的厚度。
9、根据权利要求1所述的吸塑成型模具，其特征在于：本体包括一固定部分和一可拆卸地设置于该固定部分的拆卸部，所述拆卸部的侧壁上设置有凹槽，所述挡块可转动地设置于拆卸部上。
10、根据权利要求１所述的吸塑成型模具，其特征在于：所述本体的侧壁上形成有多个凹槽，每个凹槽的上方都设置有与其相对应的挡块。
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