CN108297360A - Double lumen pore combined type half_split block and injection mold - Google Patents
Double lumen pore combined type half_split block and injection mold Download PDFInfo
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- CN108297360A CN108297360A CN201711393790.4A CN201711393790A CN108297360A CN 108297360 A CN108297360 A CN 108297360A CN 201711393790 A CN201711393790 A CN 201711393790A CN 108297360 A CN108297360 A CN 108297360A
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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
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
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Abstract
本发明公开了一种双排腔孔组合式哈夫块及注塑模具，解决了现有注塑模具对于三面脱模的制件生产效率低的问题。所述哈夫块包括左基板和右基板，所述左基板由左至右包括左抽拉部、第一半腔部A和第二半腔部A，所述第一半腔部A和第二半腔部A的右侧边均设有多个左半腔孔；所述右基板右至左包括右抽拉部、第二半腔部B和第一半腔部B，所述第二半腔部B和第一半腔部B的左侧边均设有多个与所述左半腔孔对应的右半腔孔。所述注塑模具中使用了上述哈夫块。本发明结构极为简单、不改变现有注塑模具的主结构、不影响塑料模具的内部布局、易于操作、可快速无损脱模、大大提高生产效率。
The invention discloses a double-row cavity combined Huff block and an injection mold, which solves the problem of low production efficiency of the existing injection mold for three-side demoulding parts. The Huff block includes a left base plate and a right base plate, and the left base plate includes a left drawer, a first half cavity part A and a second half cavity part A from left to right, and the first half cavity part A and the second half cavity part A The right sides of the two half-cavities A are provided with a plurality of left half-cavity holes; from right to left, the right substrate includes a right drawer, a second half-cavity B and a first half-cavity B, and the second half-cavity B The left sides of the half cavity part B and the first half cavity part B are provided with a plurality of right half cavity holes corresponding to the left half cavity holes. The aforementioned Huff block was used in the injection mold. The invention has a very simple structure, does not change the main structure of the existing injection mold, does not affect the internal layout of the plastic mold, is easy to operate, can be quickly and non-destructively demolded, and greatly improves production efficiency.
Description
技术领域technical field
本发明涉及注塑领域，特别是涉及一种用于注塑模具以及用于该注塑模具的哈夫块。The invention relates to the field of injection molding, in particular to an injection mold and a Huff block used for the injection mold.
背景技术Background technique
螺纹制件是一种广泛使用的塑料制品，因为螺纹制件不能直接强行顶出，否则会破坏螺纹形状，因此就需要设计能够完美脱出螺纹的机构。现有的注塑模具通常能够应对单面或双面螺纹制件的脱模，但当产品有内外三面同轴螺纹需求时，就需要使用三面脱膜的注塑模具，这类注塑模具通常由上定模部分、下动模部分和左、右抽芯部分组成。脱膜时，上定模部分先分离实现产品的顶面脱膜，左、右抽芯部分将哈夫块向分别向左、右两边抽拉，实现产品侧面脱模，下动模部分将产品顶出，最终实现产品的整体脱模。目前为止，由于结构和动作复杂，生产这类产品的注塑模具只有一模一腔，理论上分析，由于左右抽拉方向上的限制，在分型面处使用哈夫块时，最多也只可能实现一模一排腔，生产效率低；Threaded parts are a widely used plastic product, because the threaded parts cannot be forced out directly, otherwise the shape of the thread will be destroyed, so it is necessary to design a mechanism that can escape the thread perfectly. Existing injection molds can usually deal with the demolding of single-sided or double-sided threaded parts, but when the product has three-sided inner and outer coaxial threads, it is necessary to use a three-sided molded injection mold. This type of injection mold is usually determined by the above The mold part, the lower moving mold part and the left and right core pulling parts are composed. When demoulding, the upper fixed mold part is separated first to realize the top surface demoulding of the product, the left and right core pulling parts pull the Huff block to the left and right respectively to realize the side demoulding of the product, and the lower movable mold part pulls the product Ejection, and finally realize the overall demoulding of the product. So far, due to the complex structure and action, the injection mold for the production of this type of product has only one mold and one cavity. According to theoretical analysis, due to the restrictions on the left and right drawing directions, when using the Huff block at the parting surface, it is only possible at most One mold and one row of cavities are realized, and the production efficiency is low;
也有人考虑采用多个斜导柱分别带动多块哈夫块运动实现一模多排腔，这就需要多个斜导柱，而斜导柱数量过大，会严重影响模具内部布局，造成内部空间不足，从而不具有实用价值。Some people also consider using multiple slanted guide pillars to drive multiple Huff blocks to move respectively to realize multiple rows of cavities in one mold. Insufficient space, thus not of practical value.
发明内容Contents of the invention
本发明的目的是为了解决上述技术问题，提供一种结构极为简单、不改变现有注塑模具的主结构、不影响塑料模具的内部布局、易于操作、可快速无损脱模、大大提高生产效率的双排腔孔组合式哈夫块。The purpose of the present invention is to solve the above technical problems, to provide a very simple structure, does not change the main structure of the existing injection mold, does not affect the internal layout of the plastic mold, is easy to operate, can be quickly and non-destructively demolded, and greatly improves production efficiency. Double-row cavity combined Huff block.
本发明还提供一种使用上述双排腔孔组合式哈夫块的注塑模具。The present invention also provides an injection mold using the above-mentioned double-row cavity combined Huff block.
本发明双排腔孔组合式哈夫块包括左基板和右基板，所述左基板由左至右包括左抽拉部、第一半腔部A和第二半腔部A，所述第一半腔部A的左侧固定在抽拉部上，右侧通过左连接部与第二半腔部A连接，所述第一半腔部A和第二半腔部A的右侧边均设有多个左半腔孔；所述右基板右至左包括右抽拉部、第二半腔部B和第一半腔部B，所述第二半腔部B的右侧固定在右抽拉部上，左侧通过右连接部与第一半腔部B连接，所述第二半腔部B和第一半腔部B的左侧边均设有多个与所述左半腔孔对应的右半腔孔；所述左连接部与右连接部通过滑动机构连接，且左基板的第二半腔部A正好位于右基板的第二半腔部B和第一半腔部B之间，右基板的第一半腔部B正好位于左基板第一半腔部A和第二半腔部A之间；所述第一半腔部A的左半腔孔和第一半腔部B的右半腔孔、以及第二半腔部A的左半腔孔和第二半腔部B的右半腔孔对应组合拼接后可形成双排完整的腔孔。The double-row cavity combined Huff block of the present invention includes a left base plate and a right base plate, and the left base plate includes a left drawing part, a first half cavity part A and a second half cavity part A from left to right, the first The left side of the half cavity part A is fixed on the drawer part, and the right side is connected with the second half cavity part A through the left connecting part, and the right sides of the first half cavity part A and the second half cavity part A are both provided with There are multiple left half-cavity holes; the right base plate includes a right drawer part, a second half-cavity part B and a first half-cavity part B from right to left, and the right side of the second half-cavity part B is fixed on the right drawer part On the pull part, the left side is connected to the first half-cavity part B through the right connecting part, and the left sides of the second half-cavity part B and the first half-cavity part B are provided with a plurality of holes connected to the left half-cavity part The corresponding right half-cavity hole; the left connecting part and the right connecting part are connected by a sliding mechanism, and the second half-cavity part A of the left substrate is just located between the second half-cavity part B and the first half-cavity part B of the right substrate Between, the first half-cavity B of the right substrate is just located between the first half-cavity A and the second half-cavity A of the left substrate; the left half-cavity hole of the first half-cavity A and the first half-cavity The right half cavity of B, the left half cavity of the second half cavity A and the right half cavity of the second half cavity B can form a double row of complete cavity after corresponding combination and splicing.
所述第二半腔部A的左侧边与第一半腔部B的右侧边之间的间距为抽拉间距，为大于腔孔的直孔。The distance between the left side of the second half-cavity A and the right side of the first half-cavity B is the drawing distance, which is a straight hole larger than the cavity hole.
所述滑动机构为滑块和滑槽配合的结构。The sliding mechanism is a structure in which a slider and a slide groove cooperate.
本发明一模多腔同步成型脱模的注塑模具，包括上定模部分、下动模部分和左、右抽芯部分，所述上定模部分和下动模部分之间的分型面处设有上述双排腔孔组合式哈夫块，所述左抽芯部分连接所述双排腔孔组合式哈夫块的左基板的左抽拉部，所述右抽芯部分连接所述双排腔孔组合式哈夫块的右基板的右抽拉部。The injection mold for simultaneous molding and demoulding of one mold and multiple cavities of the present invention includes an upper fixed mold part, a lower movable mold part and left and right core-pulling parts, and the parting surface between the upper fixed mold part and the lower movable mold part The above-mentioned double-row cavity combined Hough block is provided, the left core-pulling part is connected to the left drawing part of the left base plate of the double-row cavity combined Hough block, and the right core-pulling part is connected to the double The right drawing part of the right base plate of the cavity-row combined Huff block.
本发明针对背景技术中存在的问题，对现有的哈夫块结构进行了改进，左右两块基板上都均设置两个设有半腔孔的半腔部，两块基板交错拼接后，使左基板的第二半腔部A正好位于右基板的第二半腔部B和第一半腔部B之间，右基板的第一半腔部B正好位于左基板第一半腔部A和第二半腔部B之间，左半腔孔和右半腔孔正好拼成完整的腔孔，从使双排腔孔的实现成为可能；为了解决脱膜问题，两个基板拼接后左连接部和右连接部正好对应，此时两者可通过滑动机构进行连接，在脱膜时，左、右基板被分别向左、右抽拉，则滑动机构能保证左、右基板的沿抽拉方向的顺利滑动，同时也为抽拉过程导向和限位，在合模时，也便于左、右基板迅速准确的再次拼合。In view of the problems existing in the background technology, the present invention improves the existing Huff block structure. Two half-cavity parts with half-cavity holes are arranged on the left and right substrates. After the two substrates are staggeredly spliced, the The second half-cavity part A of the left substrate is just located between the second half-cavity part B and the first half-cavity part B of the right substrate, and the first half-cavity part B of the right substrate is just located between the first half-cavity part A and the first half-cavity part of the left substrate. Between the second half-cavity part B, the left half-cavity hole and the right half-cavity hole just form a complete cavity hole, which makes it possible to realize the double-row cavity hole; The part and the right connecting part just correspond, and at this time, the two can be connected by a sliding mechanism. When the film is removed, the left and right substrates are pulled to the left and right respectively, and the sliding mechanism can ensure that the left and right substrates are pulled along The smooth sliding in the direction is also the guide and limit for the drawing process. When the mold is closed, it is also convenient for the left and right substrates to be joined together quickly and accurately.
所述滑动机构的结构并不特别限定，本领域技术人员可根据需要合理设置，优选采用滑块和滑槽配合的结构，如在左、右连接部上分别设置一组或多组滑块和滑槽，对应实现左、右基板之间的滑动配合。The structure of the sliding mechanism is not particularly limited, and those skilled in the art can reasonably set it according to the needs, preferably adopting a structure in which the slider and the chute cooperate, such as setting one or more sets of sliders and sliders on the left and right connecting parts. The chute corresponds to realize the sliding fit between the left and right base plates.
所述第二半腔部A的左侧边与第一半腔部B的右侧边之间的间距为抽拉间距，优选为大于腔孔的直孔。以保证在脱膜左、右抽芯时，哈夫块能与产品充分脱离，保证脱膜效果，若间距过小，则可能导致局部脱膜不完全。The distance between the left side of the second half-cavity A and the right side of the first half-cavity B is the drawing distance, preferably a straight hole larger than the cavity hole. In order to ensure that the Huff block can be fully separated from the product when the left and right cores are pulled out to ensure the release effect, if the distance is too small, it may lead to incomplete partial release.
有益效果：Beneficial effect:
1.本发明哈夫块具有双排腔孔，满足一模双排腔的需要，较现有的一模一腔，或一模单排腔相比能够大大的提高生产效率。1. The Huff block of the present invention has double rows of cavities to meet the needs of one mold with two rows of cavities, and can greatly improve production efficiency compared with the existing one mold with one cavity, or one mold with single row of cavities.
2.本发明哈夫块可用于现有三面脱模的同步成型脱模注塑模具中，不改现有模具的主要结构、不影响布空间布局，能快速脱模和复膜。2. The Huff block of the present invention can be used in the existing three-sided synchronous molding demoulding injection mold, without changing the main structure of the existing mold, without affecting the layout of the cloth space, and can be quickly demoulded and laminated.
3.本发明注塑模具可实现双排腔同步成型脱模，生产效率高、适用于生产例如内外三面同轴螺纹需求的螺纹制件产品，具有规模化生产价值。3. The injection mold of the present invention can realize simultaneous molding and demoulding of double-row cavities, has high production efficiency, and is suitable for the production of threaded parts that require coaxial threads on three internal and external surfaces, for example, and has large-scale production value.
附图说明Description of drawings
图1为左基板的主视图。Figure 1 is a front view of the left base plate.
图2为左基板的仰视图。Fig. 2 is a bottom view of the left base plate.
图3为右基板的结构示意图。FIG. 3 is a schematic structural diagram of the right substrate.
图4为右基板的仰视图。Fig. 4 is a bottom view of the right base plate.
图5为本发明哈夫块合拢状态的主视图。Fig. 5 is a front view of the closed state of the Huff block of the present invention.
图6为本发明哈夫块开膜状态的主视图。Fig. 6 is a front view of the film-opened state of the Huff block of the present invention.
图7为本发明注塑模具的注塑状态图。Fig. 7 is a diagram of the injection molding state of the injection mold of the present invention.
图8为本发明注逆模具的开膜状态图。Fig. 8 is a film opening state diagram of the reverse injection mold of the present invention.
其中，1-左基板、2-左抽拉部、3-第一半腔部A、4-第二半腔部A、5-左半腔孔、6-左连接部、7-右基板、8-右抽拉部、9-第二半腔部B、10-第一半腔部B、11-右半腔孔、12-右连接部、13-腔孔、14-滑槽、15-滑块、16-哈夫块、17-上定模部分、18-下动模部分、19-左抽芯部分、20-右抽芯部分、21-制件。Among them, 1-left base plate, 2-left drawing part, 3-first half cavity part A, 4-second half cavity part A, 5-left half cavity hole, 6-left connecting part, 7-right base plate, 8-right drawer, 9-second half chamber B, 10-first half chamber B, 11-right half chamber hole, 12-right connecting part, 13-cavity hole, 14-chute, 15- Slider, 16-Haffle block, 17-upper fixed mold part, 18-lower movable mold part, 19-left core-pulling part, 20-right core-pulling part, 21-part.
具体实施方式Detailed ways
下面结合附图对本发明作进一步解释说明：Below in conjunction with accompanying drawing, the present invention will be further explained:
参见图1至图4，本发明哈夫块包括左基板1和右基板7，所述左基板1由左至右包括左抽拉部2、第一半腔部A3和第二半腔部A4，所述第一半腔部A3的左侧固定在左抽拉部2上，右侧通过左连接部6与第二半腔部A4连接，所述第一半腔部A和第二半腔部A的右侧边均设有多个左半腔孔5；所述右基板7右至左包括右抽拉部8、第二半腔部B9和第一半腔部B10，所述第二半腔部B9的右侧固定在右抽拉部8上，左侧通过右连接部12与第一半腔部B10连接，所述第二半腔部B9和第一半腔部B10的左侧边均设有多个与所述左半腔孔5对应的右半腔孔11；所述左连接部6与右连接部12通过滑动机构连接，且左基板1的第二半腔部A4正好位于右基板7的第二半腔部B9和第一半腔部B10之间，右基板7的第一半腔部B10正好位于左基板1第一半腔部A3和第二半腔部A4之间；所述第一半腔部A3的左半腔孔5和第一半腔部B10的右半腔孔11、以及第二半腔部A4的左半腔孔5和第二半腔部B9的右半腔孔11对应组合拼接后可形成双排完整的腔孔13。所述滑动机构为滑块15和滑槽14配合的结构。如图所示，左连接部6和右连接部12上均对应设有滑块15和滑槽14，一个连接部上的滑块15对应嵌入另一个连接部上的滑槽14内，所述第二半腔部A4的左侧边与第一半腔部B10的右侧边之间的间距为抽拉间距h，应大于腔孔13的直孔。Referring to Fig. 1 to Fig. 4, the Huff block of the present invention includes a left base plate 1 and a right base plate 7, and the left base plate 1 includes a left drawer part 2, a first half-cavity part A3 and a second half-cavity part A4 from left to right , the left side of the first half chamber A3 is fixed on the left drawer 2, and the right side is connected to the second half chamber A4 through the left connecting part 6, the first half chamber A and the second half chamber The right side of part A is provided with a plurality of left half-cavity holes 5; the right base plate 7 includes a right drawer part 8, a second half-cavity part B9 and a first half-cavity part B10 from right to left, and the second half-cavity part B10. The right side of the half chamber B9 is fixed on the right drawer 8, the left side is connected to the first half chamber B10 through the right connecting part 12, and the left side of the second half chamber B9 and the first half chamber B10 Each side is provided with a plurality of right half-cavity holes 11 corresponding to the left half-cavity holes 5; the left connecting portion 6 and the right connecting portion 12 are connected by a sliding mechanism, and the second half-cavity portion A4 of the left substrate 1 is exactly Located between the second cavity half B9 and the first cavity half B10 of the right substrate 7, the first cavity B10 of the right substrate 7 is just located between the first cavity half A3 and the second cavity A4 of the left substrate 1 Between: the left half cavity hole 5 of the first half cavity part A3 and the right half cavity hole 11 of the first half cavity part B10, and the left half cavity hole 5 and the second half cavity part B9 of the second half cavity part A4 The right half of the cavity holes 11 can be combined and spliced to form double rows of complete cavity holes 13 . The sliding mechanism is a structure in which the sliding block 15 cooperates with the slide groove 14 . As shown in the figure, the left connecting part 6 and the right connecting part 12 are respectively provided with a slider 15 and a chute 14, and the slider 15 on one connecting part is correspondingly embedded in the chute 14 on the other connecting part. The distance between the left side of the second half-cavity A4 and the right side of the first half-cavity B10 is the drawing distance h, which should be larger than the straight hole of the cavity 13 .
图5为本发明哈夫块16合拢状态(为注塑状态下)的主视图，此时，第一半腔部A3和第一半腔部B10紧贴，第二半腔部A4和第二半腔部B9紧贴，左半腔孔5和右半腔孔11正好对应合拢形成完整腔孔13；图6为哈夫块16脱膜状态的主视图，即当左、右基板1、7的左抽拉部2和右抽拉部8在外力作用下分别向左、右抽拉时，两块基板反向移动时，则第一半腔部B10右侧边和第二半腔部A4的左侧边紧贴，左半腔孔5和右半腔孔11随之分开，从而完成哈夫板16的脱膜动作。Fig. 5 is the front view of the closed state of the Huff block 16 of the present invention (under the injection molding state). The cavity part B9 is close to each other, and the left half cavity hole 5 and the right half cavity hole 11 are just correspondingly closed to form a complete cavity hole 13; FIG. When the left drawer 2 and the right drawer 8 are drawn to the left and right respectively under the action of external force, when the two substrates move in the opposite direction, the right side of the first half cavity B10 and the second half cavity A4 The left side is close to each other, and the left half-cavity hole 5 and the right half-cavity hole 11 are separated thereupon, thereby completing the stripping action of the Huff plate 16.
参见图6和图7，本发明一模多腔同步成型脱模的注塑模具包括上定模部分17、下动模部分18和左、右抽芯部分19、20，所述上定模部分17和下动模部分18之间的分型面处设有上述双排腔孔组合式哈夫块(简称哈夫块16)，所述左抽芯部分19连接所述哈夫块16的左基板1的左抽拉部2，所述右抽芯部分20连接所述哈夫块16的右基板7的右抽拉部8。成型时，注塑机向注塑模具内注塑，当注塑完成，制件冷却结束后，上定模部分17先脱出制件，下动模部分18向下运动，分型面分开；然后左、右抽芯部分19、20分别向左和右拉动哈夫块16的左、右抽拉部2、8，哈夫板16的腔孔13在外作用力下被分开，实现脱模；最后下动模部分18工作向上旋转并顶出制件21，完全制件的全部脱模过程。人工取出制件后，进入合模过程，下动模部分18向上定模部分17方向运动，同时哈夫块16的左右抽拉部2、8在抽芯部分18、19的带动下复位，直到注塑模具完全再次闭合，为下一工作周期作准备。Referring to Fig. 6 and Fig. 7, the injection mold of one mold multi-cavity synchronous molding demoulding of the present invention comprises upper fixed mold part 17, lower movable mold part 18 and left and right core-pulling parts 19, 20, and described upper fixed mold part 17 The parting surface between the lower movable mold part 18 is provided with the above-mentioned double-row cavity combined Hough block (abbreviated as the Hough block 16), and the left core-pulling part 19 is connected to the left base plate of the Hough block 16 1, the right core pulling part 20 is connected to the right drawing part 8 of the right substrate 7 of the Huff block 16 . When molding, the injection molding machine injects into the injection mold. When the injection molding is completed and the workpiece is cooled, the upper fixed mold part 17 will come out of the workpiece first, and the lower movable mold part 18 will move downward, and the parting surface will be separated; The core parts 19 and 20 respectively pull the left and right drawing parts 2 and 8 of the Huff block 16 to the left and right, and the cavity 13 of the Huff plate 16 is separated under external force to realize demoulding; finally, the movable mold part The 18 work rotates upwards and ejects the workpiece 21, and completes the entire demoulding process of the workpiece. After manually taking out the workpiece, enter the mold closing process, the lower movable mold part 18 moves upward to the fixed mold part 17, and at the same time the left and right drawing parts 2, 8 of the Huff block 16 are reset under the drive of the core pulling parts 18, 19 until The injection mold is fully closed again, ready for the next working cycle.
Claims (4)
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Application publication date: 20180720 |