Guide mechanism of multi-cavity mold

Abstract

The utility model discloses a guide mechanism of a multi-cavity mold, which comprises more than one group of guide components which are arranged on a movable mold core and a fixed mold core and are arranged on the sides of cavities, and each group of guide components comprises a first guide block and a second guide block which can slide relatively and extend along the mold closing direction, and each first guide block and each second guide block are detachably and fixedly arranged on the fixed mold core and the movable mold core respectively. According to the utility model, the guide components are arranged on the fixed mold core and the movable mold core, so that the two mold cores can be further guided during mold closing, and then each group of mold cavities on the two mold cores can be guided, the accumulation of manufacturing errors and mounting errors can be reduced, the purpose of improving the mold cavity matching accuracy is achieved, the difference of appearance differences of products in different mold cavity groups is reduced, and the product quality is improved. And the quality stability of plastic parts in mold production is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, and particularly relates to a guiding mechanism for a multi-cavity plastic mold. Background Art

[0002] In a plastic mold with multiple cavities in one mold or an m + n structure, a plurality of cavities are formed on both the moving mold core and the fixed mold core. When the mold is closed, each group of cavities needs to be accurately matched and buckled, so the accuracy requirement for mold closing is higher. At present, the guiding of plastic molds is generally mainly completed by guide posts and guide sleeves respectively installed on the moving mold and the fixed mold and matching with each other. However, the distance from them to the cavities on the middle mold core is generally far, and it is difficult to economically and effectively improve the guiding accuracy. In addition, due to manufacturing tolerances and assembly tolerances, there will be differences in the matching degree of different groups of cavities, so there are problems of inconsistent appearance quality and dimensional accuracy of products in different cavities. Summary of the Utility Model

[0003] Aiming at the problems existing in the above-mentioned prior art, the utility model provides a guiding mechanism for a multi-cavity plastic mold. A guiding component is arranged on the fixed mold core and the moving mold core. When the mold is closed, the two mold cores and each group of cavities on them can be further guided to be correct, so as to achieve the purpose of improving the matching accuracy of the cavities, and further reduce the differences in the appearance of products in different cavity groups, and improve the stability of the quality of plastic parts in mold production.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is as follows:

[0005] A guiding mechanism for a multi-cavity plastic mold, wherein a plurality of guide posts capable of guiding the relative movement direction of the moving mold and the fixed mold are arranged on the plastic mold. A moving mold core is arranged on the moving mold, and a fixed mold core is arranged on the fixed mold. The moving mold core and the fixed mold core are matched with each other and both are provided with more than two cavities; the guiding mechanism further includes more than one group of guiding components arranged on the moving mold core and the fixed mold core and beside the cavities. Each group of guiding components includes a first guiding block and a second guiding block that can slide relatively and both extend along the mold closing direction. Each first guiding block can be detachably fixed on the fixed mold core or the moving mold core, and each second guiding block can be detachably fixed on the moving mold core or the fixed mold core.

[0006] As a further elaboration of the above technical solution:

[0007] In the above technical solution, each first guiding block and second guiding block of each group of guiding components are both of a direct trapezoidal structure, their hypotenuses are arranged oppositely, and matching chutes and sliding ways are respectively arranged on them.

[0008] In the above technical solution, the chute is a dovetail groove or a T-shaped groove.

[0009] In the above technical solution, first positioning members and first guiding members are respectively provided at two parallel end portions of each of the first guiding blocks. The first positioning members are positioning hole grooves, positioning holes or positioning hole columns, and the first guiding members are sliding grooves or protrusions.

[0010] In the above technical solution, second positioning members and second guiding members are respectively provided at two parallel end portions of each of the second guiding blocks. The second positioning members are positioning hole grooves, positioning holes or positioning hole columns, and the second guiding members are protrusions or sliding grooves.

[0011] In the above technical solution, one or more mounting grooves adapted to one end portion of a set of the guiding assemblies are provided on both the fixed mold core and the movable mold core. A third positioning member is provided in each of the mounting grooves. The third positioning member is a positioning hole groove, a positioning hole or a positioning hole column adapted to the first guiding block.

[0012] In the above technical solution, a limiting groove is further provided on the fixed mold core and the movable mold core around each of the mounting grooves.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging the guiding assembly on the fixed mold core and the movable mold core, when the molds are closed, the two mold cores can be further aligned, and then the cavity groups thereon can be aligned, and the accumulation of manufacturing errors and installation errors can be reduced, so as to achieve the purpose of improving the matching accuracy of the cavities, and further reduce the difference in the appearance of products in different cavity groups, and improve the stability of the quality of plastic parts in mold production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an exploded structural schematic diagram of the present utility model;

[0015] Figure 2 is Figure 1 a partially enlarged structural schematic diagram of part A in

[0016] Figure 3 is an exploded structural schematic diagram of the guiding assembly in the embodiment;

[0017] Figure 4 is Figure 3 a structural schematic diagram from another perspective.

[0018] In the figure: 10, movable mold core; 20, fixed mold core; 30, guiding assembly; 31, first guiding block; 32, second guiding block; 1, cavity; 2, sliding groove; 3, sliding way; 4, first positioning member; 5, first guiding member; 6, second positioning member; 7, second guiding member; 8, mounting groove; 9, third positioning member; 12, limiting groove; 13, vent cutting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] The embodiments described with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a number of" and "a plurality of" is two or more, unless otherwise specifically defined. In the present application, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0021] As Figures 1-4As shown in the figure, the guiding mechanism of a multi-cavity plastic mold is provided with a number of guide pillars on the mold that can correct the relative movement direction between the moving mold and the fixed mold. The moving mold is provided with a moving mold core 10, and the fixed mold is provided with a fixed mold core 20. The moving mold core 10 and the fixed mold core 20 are mutually matched and are each provided with more than two cavities 1; the guiding mechanism further includes more than one group of guiding components 30 installed on the moving mold core 10 and the fixed mold core 20 and beside the cavities 1. Each group of guiding components 30 includes a first guiding block 31 and a second guiding block 32 that can slide relative to each other and both extend along the mold closing direction. Each first guiding block 31 is detachably fixed on the fixed mold core 20 or the moving mold core 10, and each second guiding block 32 is detachably fixed on the moving mold core 10 or the fixed mold core 20.

[0022] In the utility model, by arranging the guiding components 30 on the fixed mold core 20 and the moving mold core 10, when the mold is closed, the two mold cores can be further corrected, and thus the cavities on them can be corrected. Also, the accumulation of manufacturing errors and installation errors can be reduced, so as to achieve the purpose of improving the matching accuracy of the cavities, reducing the differences in the appearance of products within different cavity groups, and enhancing the stability of the quality of plastic parts in mold production.

[0023] As Figures 3-4 shown in the figure, each first guiding block 31 and each second guiding block 32 of each group of guiding components 30 are both of a direct trapezoidal structure, with their hypotenuses facing each other and respectively provided with matching chutes 2 and slideways 3. Both parallel ends of each first guiding block 31 are respectively provided with a first positioning member 4 and a first guiding member 5. The first positioning member 4 is a positioning hole groove, a positioning hole or a positioning hole column, and the first guiding member 5 is a chute or a protrusion. Both parallel ends of each second guiding block 32 are respectively provided with a second positioning member 6 and a second guiding member 7. The second positioning member 6 is a positioning hole groove, a positioning hole or a positioning hole column, and the second guiding member 7 is a protrusion or a chute.

[0024] In order to prevent the first guiding block 31 from being disengaged from the second guiding block 32, the chute 2 can be set as a dovetail groove or a T-shaped groove structure. In addition, the inclined chute 2 and slideway 3 can prevent the first guiding block 31 from directly hitting the second guiding block 32 during the mold closing process, slow down the impact force and reduce its influence on the mold core and the structural parts on the mold, and can effectively avoid the phenomenon of jamming during mold closing.

[0025] To avoid the formation of a vacuum between the first guiding block 31 and the second guiding block 32 after the mold is closed, in this embodiment, an air vent groove 13 is provided at the end where the slideway 2 and the chute 3 of each group of guiding components 30 are matched, so that external gas can enter between them to facilitate mold opening.

[0026] In this embodiment, there is provided more than one mounting groove 8 on both the fixed mold core 20 and the movable mold core 10, which is adapted to one end of a set of guiding components 30. A third positioning member 9 is provided in each mounting groove 8. The third positioning member 9 is a positioning hole groove, a positioning hole or a positioning hole column adapted to the first guiding block 31. There is also a limiting groove 12 provided on both the fixed mold core 20 and the movable mold core 10 around each mounting groove 8.

[0027] During assembly, the first guiding block 31 is inserted into the mounting groove 8 in the movable mold core 10, and the first positioning member 4 and the third positioning member 9 are matched and connected. Then, the second guiding block 32 is inserted into the mounting groove 8 in the fixed mold core 20, and the second positioning member 6 and the third positioning member 9 are matched and connected. During the mold closing process, the sliding groove 2 or the sliding track 3 on the first guiding block 31 is matched and engaged with the sliding track 3 or the sliding groove 2 on the second guiding block 32 and relatively slides, pulling the movable mold core 10 to perform a fine position adjustment relative to the fixed mold core 20 to further correct the relative positions of the two.

[0028] The above does not impose any limitation on the technical scope of the present utility model. Any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A guiding mechanism for a multi-cavity mold, wherein the mold is provided with a plurality of guide pillars capable of guiding the relative movement direction of the movable mold and the fixed mold, the movable mold is provided with a movable mold core, the fixed mold is provided with a fixed mold core, the movable mold core and the fixed mold core are matched with each other and are provided with more than two cavities; characterized in that: The guide mechanism also includes one or more guide components installed on the movable mold core and the fixed mold core and arranged on the side of the cavity, each group of the guide components includes a first guide block and a second guide block that can slide relative to each other and extend along the mold closing direction, each of the first guide blocks can be removably fixed on the fixed mold core or the movable mold core, and each of the second guide blocks can be removably fixed on the movable mold core or the fixed mold core.

2. The guiding mechanism of the multi-cavity mold according to claim 1, characterized in that: Each of the first guide block and the second guide block of each group of the guide assembly structures is a direct trapezoidal structure, the oblique sides of which are arranged opposite to each other and matched slide grooves and slideways are respectively provided thereon.

3. The method according to claim 2, characterized in that: The slide groove is a dovetail groove or a T-shaped groove.

4. The guiding mechanism of the multi-cavity mold according to claim 2, characterized in that: The two parallel ends of each of the first guide blocks are respectively provided with a first positioning member and a first guide member, the first positioning member is a positioning hole groove, a positioning hole or a positioning hole column, and the first guide member is a sliding groove or a protrusion.

5. The guiding mechanism of the multi-cavity mold according to claim 2, characterized in that: Two parallel ends of each second guide block are respectively provided with a second positioning member and a second guide member, the second positioning member is a positioning hole groove, a positioning hole or a positioning hole column, and the second guide member is a protrusion or a slide groove.

6. The guiding mechanism of the multi-cavity mold according to claim 1, characterized in that: The fixed mold core and the movable mold core are each provided with one or more mounting grooves adapted to one end of a group of the guide components, and each mounting groove is provided with a third positioning member, and the third positioning member is a positioning hole groove, a positioning hole or a positioning hole column adapted to the first guide block.

7. The guiding mechanism of the multi-cavity mold according to claim 6, characterized in that: The fixed mold core and the movable mold core are also provided with a limiting groove on the periphery of each installation groove.

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