One-mold multi-cavity lateral core-pulling injection mold

Abstract

The one-mold multi-cavity lateral core-pulling injection mold comprises a movable mold plate and a fixed mold plate, a movable mold core is arranged on the movable mold plate, an open type hot runner and at least two movable mold cavities are arranged on the movable mold core, and the open type hot runner is communicated with the movable mold cavities through submerged sprues; a mold core is arranged on the fixed mold plate, a mold cavity is arranged on the fixed mold core, and a splitter plate is arranged at the upper end of the fixed mold plate and provided with a main nozzle and a plurality of split-flow nozzles. According to the one-mold multi-cavity lateral core-pulling injection mold disclosed by the utility model, the shunting plate is arranged, the main nozzle and the plurality of shunting nozzles are arranged on the shunting plate, and the shunting nozzles are butted with the open type hot runner to feed glue to a cavity of an injection molding part, so that the glue feeding efficiency and the molding quality are improved, and the molding allowance of the injection molding part is reduced; the submerged pouring gate is adopted for feeding glue to the cavity, an injection molding part and a feeding port are easily disconnected, pouring gate traces are small, secondary machining is not needed, and therefore the production efficiency and quality are improved; the forced reset rod is matched with the swing rod to reset the ejector pin push plate before mold closing, and interference between the ejector pin and the core-pulling sliding block is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, especially in one mould multi -hole side core -pulling injection mold. BACKGROUND

[0002] Injection mold is a kind of key equipment for manufacturing plastic product, by the molten plastic injection into the mold cavity, and after cooling solidification forming to produce the plastic parts with specific shape and specification.

[0003] To improve injection production efficiency, for small specification injection, generally will adopt one mould multi -hole mold design, however, the traditional injection mold is poor in the multi -hole injection pressure-keeping effect, and injection part is prone to produce defects, and because the glue way path is long, and the raw material used for injection is more;At the same time, for some injection parts needing side core-pulling, ejector pin is also prone to interference with core-pulling slider, which affects the production efficiency and quality of injection part.

[0004] Therefore, in view of the deficiencies of the prior art, it is necessary to design a one mould multi -hole side core-pulling injection mold to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only to facilitate the clear and complete description of the technical scheme of the utility model, and to facilitate the understanding of those skilled in the art, and the above content cannot be considered as known by those skilled in the art because the above content is described in the background art of the utility model. UTILITY MODEL CONTENT

[0006] In order to overcome the deficiencies in the prior art, the utility model aims at one mould multi -hole side core-pulling injection mold for improving the production efficiency and quality of side core-pulling injection part.

[0007] The utility model discloses a one mould multi -hole side core-pulling injection mold, including movable die plate and fixed die plate, wherein:

[0008] The movable die plate is provided with movable die kernel, the movable die kernel is provided with open type hot glue way and at least two movable die cavities, the open type hot glue way is communicated with the movable die cavity through the submerged gate, and one side of the movable die cavity is provided with a core-pulling slider;One side of the movable die plate is provided with a swing lever, the swing range of the swing lever is provided with an ejector pin push plate, and the ejector pin push plate is provided with a plurality of ejector pins extending into the movable die kernel;

[0009] The fixed die plate is provided with fixed die kernel, and the fixed die kernel is provided with fixed die cavity at the corresponding position of the movable die cavity, and the upper end of the fixed die plate is provided with a flow divider, and the flow divider is provided with a main nozzle and a plurality of flow divider nozzles in communication, the front end of the flow divider nozzle is provided through the fixed die plate and the open type hot glue way, and the fixed die plate is provided with a forced reset rod, and the forced reset rod can push the swing lever to reset the ejector pin push plate.

[0010] The preferred technical scheme is that the reset block is arranged on the ejector rod push plate, the reset block is in the swing range of the swing rod, the swing rod and the reset block are located on the same side of the forced reset rod, and the reset block is convenient to replace after long-term use and wear.

[0011] The preferred technical scheme is that the forced reset rod is movably connected with the limit block on the side away from the swing rod, the limit block is fixed on the movable mold plate, and the limit block is used for laterally supporting the forced reset rod and maintaining force balance with the swing rod on the other side of the forced reset rod, so that deformation of the forced reset rod is avoided.

[0012] The preferred technical scheme is that the limit sensor is arranged below the ejector rod push plate and is used for confirming whether the ejector rod push plate is reset.

[0013] The preferred technical scheme is that the heating coil is arranged on the distribution plate and is used for guaranteeing the temperature of the distribution plate and preventing solidification of injection glue flowing through the distribution plate.

[0014] Thanks to the above technical scheme, the utility model has the beneficial effects compared with the prior art.

[0015] The utility model discloses a one-mold multi-cavity lateral core-pulling injection mold, which is provided with a distribution plate, a main nozzle and a plurality of distribution nozzles arranged on the distribution plate, the injection glue is sent to the cavity of the injection part through the distribution nozzles and the open type hot glue channel, the glue sending efficiency and the forming quality are improved, and the forming allowance of the injection part is reduced; the injection part is easily disconnected from the feeding port, the trace of the gate is small, and secondary processing is not needed, so that the production efficiency and quality are improved; the forced reset rod is used in cooperation with the swing rod to reset the ejector rod push plate before the mold is closed, and the interference between the ejector rod and the core-pulling slider is avoided. DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the utility model or the technical scheme in the prior art, the drawings needed in the following specific embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a structural schematic diagram of the one-mold multi-cavity lateral core-pulling injection mold of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the movable mold plate in the utility model;

[0019] Figure 3 It is Figure 2 It is a local enlarged schematic diagram of A in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the fixed mold plate in the utility model;

[0021] Figure 5 Figure 1 is a structural schematic diagram of the shunt plate in the utility model.

[0022] In the above drawings, 1, movable mold plate; 11, movable mold core; 12, open hot glue channel; 12a, submerged gate; 13, movable mold cavity; 14, core-pulling slider; 15, ejector rod; 15a, ejector pin; 16, swing lever; 17, reset stopper; 18, limit sensor; 19, limit stopper; 2, fixed mold plate; 21, fixed mold core; 22, fixed mold cavity; 23, shunt plate; 24, main nozzle; 25, shunt nozzle; 26, forced reset rod; 27, heating coil. DETAILED DESCRIPTION

[0023] The implementation of the utility model will be described by specific embodiments below, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application. In addition, the terms "include" and "have" and their synonyms are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For ordinary skilled persons in the art, the specific meaning of these terms in the utility model can be understood according to the specific circumstances.

[0027] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Example:

[0030] like Figure 1 As shown, this utility model discloses a multi-cavity side-pulling injection mold, including a moving mold plate 1 and a fixed mold plate 2. The main components of this utility model will be described in detail below:

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the moving mold plate 1 is provided with two moving mold cores 11. The moving mold cores 11 are provided with open hot glue channels 12 and four moving mold cavities 13. The open hot glue channels 12 are connected to the four moving mold cavities 13 respectively through submarine gates 12a. A core-pulling slider 14 is provided on one side of the moving mold cavity 13 for molding the side groove of the injection molded part. A rocker arm 16 is provided on one side of the moving mold plate 1. An ejector plate 15 is provided within the swing range of the rocker arm 16. A number of ejector pins 15a are provided on the ejector plate 15 extending into the moving mold cores 11.

[0032] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the fixed mold plate 2 has two fixed mold cores 21. A fixed mold cavity 22 is provided at a position corresponding to the moving mold cavity 13. A flow divider plate 23 is provided at the upper end of the fixed mold plate 2. The flow divider plate 23 has a main nozzle 24 and four flow divider nozzles 25 that are interconnected. The front ends of the flow divider nozzles 25 pass through the fixed mold plate 2 and are correspondingly positioned with the open hot glue channel 12. A forced reset rod 26 is provided on the fixed mold plate 2. The forced reset rod 26 can push the swing rod 16 to reset the ejector plate 15. It should be noted that in this embodiment, there are two moving mold cores 11 and two fixed mold cores 21. However, in other embodiments, only one moving mold core 11 and one fixed mold core 21 may be provided.

[0033] refer to Figure 1 , Figure 2 ,Figure 3 、 Figure 4 and Figure 5 As shown in the use method and principle are described as follows: when the mold is closed, the movable mold plate 1 moves towards the fixed mold plate 2, the forced reset rod 26 moves forward to push the swing rod 16 forward, the front end of the swing rod 16 swings downward to reset the ejector pad 15, and the front end of the ejector pin 15a is separated from the movable mold cavity 13; then the core-pulling slider 14 is driven by the line mechanism to enter the movable mold cavity 13, so that the core-pulling slider 14 and the ejector pin 15a are prevented from interfering with each other, and the forced reset rod 26 is used to reset the ejector pad 15 synchronously during the mold closing process, so that the operation efficiency is high; during the injection molding operation, the plastic enters the four distribution nozzles 25 through the main nozzle 24 and the distribution plate 23, the distribution nozzles 25 send the plastic into the open hot glue channel 12, the balance of the plastic injection pressure is ensured, and injection defects are avoided; the plastic is injected into the molding cavity formed by the fixed mold cavity 22 and the movable mold cavity 13 through the submerged gate 12a, the gate mark is reduced, the molded injection part and the excess material at the gate are easily separated, secondary processing is avoided, and the production efficiency is improved; at the same time, the injection molding in the distribution mode can reduce the plastic forming allowance at the gate, reduce the use amount of plastic raw materials, and further reduce the production cost.

[0034] As Figure 1 、 Figure 2 and Figure 3 shown, for convenient maintenance, the ejector pad 15 is provided with a reset stop block 17, the reset stop block 17 is within the swing range of the swing rod 16, the swing rod 16 and the reset stop block 17 are located on the same side of the forced reset rod 26, the reset stop block 17 is used to avoid direct contact between the swing rod 16 and the ejector pad 15, and the reset stop block 17 is more convenient to replace after wear.

[0035] As Figure 1 、 Figure 2 and Figure 3 shown, to avoid failure of the forced reset rod, the forced reset rod 26 is movably connected with a limiting stop block 19 away from the swing rod 16, the limiting stop block 19 is fixed on the movable mold plate 1, the limiting stop block 19 balances the stress on both sides of the forced reset rod 26, and deformation of the forced reset rod 26 away from the swing rod 16 is avoided under the action of the swing rod 16.

[0036] As Figure 1 、 Figure 2 and Figure 3 shown, to further ensure that the ejector pin and the core-pulling slider do not interfere with each other, a limiting sensor 18 is arranged below the ejector pad 15, the limiting sensor 18 is used to monitor the reset condition of the ejector pad 15, when the reset action is completed and the limiting sensor 18 does not identify the reset of the ejector pad 15, the injection molding equipment is controlled to stop further action, and collision and damage of the ejector pin 15a and the core-pulling slider 14 are avoided.

[0037] As shown in Figure 1 And Figure 5 In order to prevent solidification of the injection plastic flowing through the distribution plate, the distribution plate 23 is temperature controlled by the heating coil 27, and the high-efficiency heating of the heating coil 27 avoids clogging of the distribution nozzle 25 due to insufficient temperature, and improves the injection efficiency.

[0038] Finally, it should be noted that the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A multi-cavity side core-pulling injection mold, comprising a movable mold plate (1) and a fixed mold plate (2), characterized in that: the movable mold plate (1) is provided with a movable mold core (11), the movable mold core (11) is provided with an open hot glue channel (12) and at least two movable mold cavities (13), the open hot glue channel (12) is communicated with the movable mold cavities (13) through a submerged gate (12a), and one side of the movable mold cavities (13) is provided with a core-pulling slider (14); one side of the movable mold plate (1) is provided with a swing lever (16), the swing range of the swing lever (16) is provided with a ejector rod push plate (15), and the ejector rod push plate (15) is provided with a plurality of ejector rods (15a) extending into the movable mold core (11); the fixed mold plate (2) is provided with a fixed mold core (21), the fixed mold core (21) is provided with a fixed mold cavity (22) at a position corresponding to the movable mold cavities (13), the upper end of the fixed mold plate (2) is provided with a flow distribution plate (23), the flow distribution plate (23) is provided with a main nozzle (24) and a plurality of flow distribution nozzles (25) which are communicated with each other, the front end of the flow distribution nozzles (25) passes through the fixed mold plate (2) and is correspondingly arranged with the open hot glue channel (12), the fixed mold plate (2) is provided with a forced reset lever (26), the forced reset lever (26) can push the swing lever (16) to reset the ejector rod push plate (15).

2. The one-mold multi-cavity side core-pulling injection mold according to claim 1, characterized by: The ejector rod push plate (15) is provided with a reset block (17), the reset block (17) is located in the swing range of the swing lever (16), and the swing lever (16) and the reset block (17) are located on the same side of the forced reset lever (26).

3. The one-mold multi-cavity side core-pulling injection mold according to claim 1, characterized in that: The forced reset lever (26) is movably connected with a limiting block (19) away from the swing lever (16), and the limiting block (19) is fixed on the movable mold plate (1).

4. The one-mold multi-cavity side core-pulling injection mold according to claim 1, characterized by: The ejector rod push plate (15) is provided below with a limiting sensor (18).

5. The one-mold multi-cavity side core-pulling injection mold according to claim 1, characterized in that: The flow distribution plate (23) is provided with a heating coil (27).

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