Forming die structure of automobile atmosphere lamp

Abstract

The utility model discloses a forming die structure of an automobile atmosphere lamp, the opposite end parts of a fixed die core and a movable die core are provided with forming ends, each forming end is provided with a first cavity and a second cavity, the first cavity is matched with a product, the second cavity is arranged at the two end parts of the first cavity, and the first cavity is matched with the second cavity. And ejector pins are arranged at the lower ends of the second cavities and the runners on the movable mold core. A complete product can be directly formed through one-time mold closing production, the supporting plates can be formed at the two ends of the product, the product can be ejected out of the mold core by jacking up the supporting plates during mold opening to achieve automatic demolding, the supporting plates can be linearly removed during use, and ejector pin marks influencing the appearance of the product cannot be left on the product; and a buffer channel is reserved before high-temperature and high-pressure glue liquid enters the flat horn-shaped third runner, so that the flow speed of the glue liquid is reduced, and meanwhile, a release agent and air in the third runner can be stored and are prevented from entering a cavity to influence the quality of a product.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a molding mold structure of an automobile atmosphere lamp. Background Art

[0002] Ambient lighting is a decorative product for cars. It is generally made of highly transparent hard plastic and symmetrically embedded on the outside or inside of the car. The cross-sectional area of ​​the product is small, but the extension path is long and includes smoothly connected straight and arc segments. Moreover, since it is an appearance part, there must be no visual defects on the product, so there must be no ejector demolding marks on the product. Taking these design requirements into consideration, the design of the injection point and demolding method of the plastic parts in the mold design is very complicated. In actual production, the plastic parts are also very prone to problems such as internal white spots or bubbles, residual slag bags on the end face, ejector marks or sprue marks. In production, a whole product can also be divided into several sections for molding and production, and then assembled on the car in sequence. Although this method can reduce the difficulty of product molding, it will reduce the overall aesthetics of the product and increase the assembly time and assembly defect rate of the product. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a molding mold structure for an automobile atmosphere lamp. A complete product can be directly molded in one-time mold production, and a support plate can be formed at both ends of the product. When the mold is opened, the product can be ejected from the mold core by lifting the support plate to achieve automatic demolding. When in use, the support plate can be removed in a straight line without leaving any ejector mark on the product that affects its appearance. Buffer holes and grooves are arranged on the fixed mold core to reserve a buffer channel for the high-temperature and high-pressure glue to enter the flat trumpet-shaped third flow channel, which is convenient for slowing down the flow rate of the glue. At the same time, the release agent and air in the gold flow channel can be stored to prevent them from entering the cavity and affecting the quality of the product.

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

[0005] A molding die structure for an automotive atmosphere lamp, wherein the molding die is provided with a fixed die core and a movable die core that match each other, and a cavity that matches the contour of a product is formed on the end of the fixed die core and / or the movable die core;

[0006] The ends of the fixed mold core and the movable mold core facing each other are formed with molding ends formed by smooth splicing of flat surfaces and curved surfaces and matching each other, each molding end is formed with one or more first cavities extending along its end surface and in a strip shape, and each of the first cavities is formed with one or more second cavities on the outer sides of both ends; when the molds are closed, the glue can flow into the second cavity through the first cavity;

[0007] The fixed mold core is provided with a main flow channel for guiding the glue, and the main flow channel is provided in the middle of the first cavities and is located beside the middle part of each of the first cavities;

[0008] The movable mold core is provided with more than one glue feed channel that can be matched and connected with the main flow channel, and each of the glue feed channel is connected with each of the first cavities on the movable mold core; the movable mold core is provided with an ejector hole groove that is connected with the second cavity and extends along the mold opening direction on the wall of each glue feed channel and the second cavity, and each of the ejector hole grooves can be equipped with an ejector, and each of the ejector pins is drivingly connected with the ejector plate on the molding mold, and the ejector plate can move along the mold opening direction under the drive of external force to push each ejector pin to eject the product from the movable mold core.

[0009] As a further elaboration of the above technical solution:

[0010] In the above technical solution, each of the glue inlet channels includes a first channel, several second channels and several third channels that are connected to each other: each of the first channels is arranged in the middle of several of the first cavities and can be connected with the main channel when the mold is closed; one end of each of the second channels is connected with the first channel, and the other end extends to the side of one of the first cavities; each of the third channels is connected with one of the first cavities.

[0011] In the above technical solution, each of the first flow channel and / or the second flow channel is communicated with one of the ejector pinhole grooves.

[0012] In the above technical solution, each of the third flow channels is a flat trumpet structure, and its large end is connected to the first cavity.

[0013] In the above technical solution, more than one buffer hole groove is formed on the fixed mold core, and when the mold is closed, each of the buffer hole grooves is connected to the second flow channel and the third flow channel.

[0014] In the above technical solution, the end portion of each second flow channel extends to the side of the third flow channel, and the connection between the second flow channel and the third flow channel is communicated with one of the ejector pinhole grooves.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: by forming matching molding ends on both the fixed mold core and the movable mold core, and forming first cavities adapted to and matching the product on the molding ends respectively, a complete product can be directly molded in one-time mold production; by forming a second cavity outside the two end portions of the first cavity, and providing an ejector hole groove connected to the second cavity on the movable mold core, a support plate can be formed at both ends of the product, and when the mold is opened, the product can be automatically demolded by lifting the support plate to eject the product out of the mold core, and the support plate can be removed in a straight line when in use, and no ejector mark that affects the appearance of the product will be left on the product; by providing a buffer hole groove on the fixed mold core, a buffer channel can be reserved before the high-temperature and high-pressure glue enters the flat trumpet-shaped third flow channel, which is convenient for slowing down the flow rate of the glue, and at the same time, the release agent and air in the flow channel can be stored to prevent them from entering the cavity and affecting the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the embodiment when the mold is closed;

[0017] Figure 2 It is a structural schematic diagram of the fixed mold core in this embodiment;

[0018] Figure 3 Schematic diagram of the structure of the movable mold core in this embodiment;

[0019] Figure 4 It is a schematic diagram of the structure of the product and the ejector pin when the mold is opened in this embodiment;

[0020] Figure 5 It is a schematic structural diagram of the forming nozzle of this embodiment.

[0021] In the figure: 10, fixed mold core; 20, movable mold core; 30, product; 40, support plate; 1, molding end; 2, first cavity; 3, second cavity; 4, main channel; 5, glue inlet channel; 51, first channel; 52, second channel; 53, third channel; 6, ejector hole groove; 7, ejector; 8, buffer hole groove; 9, molding outlet; 91, first outlet; 92, second outlet, 93, third outlet; 94, buffer outlet; 95, main outlet; 96, ejector outlet. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is 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 therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] like Figure 1-3 As shown, a molding die structure of an automotive atmosphere lamp is provided on the molding die, and a matching fixed die core 10 and a movable die core 20 are provided on the ends of the fixed die core 10 and / or the movable die core 20, and a cavity adapted to the contour of the product is formed;

[0025] The fixed mold core 10 and the movable mold core 20 are formed with molding ends 1 formed by smooth splicing of flat surfaces and curved surfaces and matching each other, and each molding end 1 is formed with one or more first cavities 2 extending along its end surface and in a strip shape, and each first cavity 2 is formed with one or more second cavities 3 on the outer sides of both ends; when the mold is closed, the glue can flow into the second cavity 3 through the first cavity 2;

[0026] The fixed mold core 10 is provided with a main flow channel 4 for guiding the glue, and the main flow channel 4 is arranged in the middle of the first cavities 1 and is located beside the middle part of each first cavity 1;

[0027] The movable mold core 20 is provided with one or more glue feed channels 5 that can be matched and connected with the main channel 4, and each glue feed channel 5 is connected with each first cavity 2 on the movable mold core 20; on the movable mold core 20, each glue feed channel 5 and the wall of the second cavity 3 are provided with an ejector hole groove 6 that is connected with them and extends along the mold opening direction, and each ejector hole groove 6 can be equipped with an ejector 7, and each ejector 7 is transmission-connected with the ejector plate on the molding mold, and the ejector plate can move along the mold opening direction under the drive of external force to push each ejector 7 to eject the product from the movable mold core.

[0028] The utility model forms matching molding ends 1 on both the fixed mold core 10 and the movable mold core 20, and respectively forms first cavities 2 adapted to and matched with the product 30 on the molding ends 1, so that a complete product 30 can be directly molded in one-time mold production; by forming second cavities 3 on the outer sides of the two end portions of the first cavity 2, and providing ejector hole grooves 6 connected to the second cavity 3 on the movable mold core 20, support plates 40 can be formed at both ends of the product 30, and when the mold is opened, the product can be ejected from the mold core by lifting the support plate 40 to realize automatic demoulding, and when in use, the support plate 40 can be removed in a straight line, and no ejector mark that affects the appearance of the product 30 will be left.

[0029] Furthermore, each glue inlet channel 5 includes a first flow channel 51, a plurality of second flow channels 52 and a plurality of third flow channels 53 that are connected to each other: each first flow channel 51 is arranged in the middle of a plurality of first cavities 2 and can be connected to the main flow channel 4 when the mold is closed; one end of each second flow channel 52 is connected to the first flow channel 51, and the other end extends to the side of a first cavity 2; each third flow channel 53 is connected to a first cavity 2.

[0030] Specifically, each first flow channel 51 and / or second flow channel 52 is connected to a pinhole groove 6; each third flow channel 53 is a flat trumpet structure, and its large end is connected to the first cavity 2; one or more buffer holes 8 are formed on the fixed mold core 10, and when the mold is closed, each buffer hole groove 8 is connected to a second flow channel 52 and a third flow channel 53; the terminal end of each second flow channel 52 extends to the side of the third flow channel 53, and its connection with the third flow channel 53 is connected to a pinhole groove 6.

[0031] It can be understood that the buffer hole groove 8 reserves a buffer channel for the high-temperature and high-pressure glue before it enters the flat trumpet-shaped third flow channel 53, which is convenient for slowing down the flow rate of the glue. At the same time, it can store the release agent and air in the gold flow channel to prevent them from entering the cavity and affecting the quality of the product 30.

[0032] In order to intuitively demonstrate the glue feeding and demoulding structure of the utility model, Figure 4 The schematic diagram of the structure of the product 30 and the ejector pin 7 when the mold is opened shows that the first cavity 2 on the two mold cores can form the product 30, and the second cavity 3 forms the support plates 40 on both sides of the end of the product 30; Figure 5 A schematic diagram of the structure of the water inlet is shown, wherein the main water inlet 95 corresponds to the main channel 4, the first water inlet 91 corresponds to the first channel 51, the second water inlet 92 corresponds to the second channel 52, the third water inlet 93 corresponds to the third channel 53, the buffer water inlet 94 corresponds to the buffer hole groove, and the ejector water inlet 96 corresponds to the ejector hole groove 6.

[0033] In this embodiment, the mold cavity adopts a 1+1 structural design, and the gate structure adopts a structure of a main channel 4, a first channel 51, two second channels 52 and two third channels 53. Each mold cavity is connected to a third channel 53, and the width of the third channel 53 is 7mm and the depth is 0.7mm. According to production verification, during the injection molding process, the glue can fill the first cavity 2 100%, the ejector demolding is smooth, the product injection quality is good and stable, and the product light transmission is uniform; when using, the third channel 53 is cut off, and the support plate 40 formed by the second cavity 3 is cut off from the product 30, and the product 30 can be used. There will be no ejector mark on the product 30, and the cut gate will not affect the light guide of the product 30.

[0034] The plastic mold includes a movable mold and a fixed mold. The fixed mold is equipped with a glue storage / transfer device, a fixed mold plate and a fixed mold core. The movable mold is equipped with a movable mold core, a movable mold plate and an ejector plate. The ejector plate is provided with an ejector. The ejector plate is transmission-connected to the drive device and can drive the ejector to eject the plastic part from the movable mold after the mold is opened. The structural composition of the plastic mold and its working process are common knowledge of technicians in this field, and the specific structure and working process of other parts of the mold are not described here.

[0035] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A molding die structure for an automotive atmosphere lamp, wherein the molding die is provided with a fixed die core and a movable die core that match each other, and a cavity that matches the contour of a product is formed on the end of the fixed die core and / or the movable die core; characterized in that: The ends of the fixed mold core and the movable mold core facing each other are formed with molding ends formed by smooth splicing of flat surfaces and curved surfaces and matching each other, each molding end is formed with one or more first cavities extending along its end surface and in a strip shape, and each of the first cavities is formed with one or more second cavities on the outer sides of both ends; when the molds are closed, the glue can flow into the second cavity through the first cavity; The fixed mold core is provided with a main flow channel for guiding the glue, and the main flow channel is provided in the middle of the first cavities and is located beside the middle part of each of the first cavities; The movable mold core is provided with more than one glue feed channel that can be matched and connected with the main flow channel, and each of the glue feed channel is connected with each of the first cavities on the movable mold core; the movable mold core is provided with an ejector hole groove that is connected with the wall of each of the glue feed channel and the second cavity and extends along the mold opening direction, each of the ejector hole grooves can be equipped with an ejector, and each of the ejector pins is drivingly connected with the ejector plate on the molding mold, and the ejector plate can be driven by an external force to move along the mold opening direction to push each of the ejector pins to eject the product from the movable mold core.

2. The molding die structure of the automotive atmosphere lamp according to claim 1, characterized in that: Each of the glue inlet channels includes a first channel, a plurality of second channels and a plurality of third channels that are connected to each other: each of the first channels is arranged in the middle of a plurality of the first cavities and can be connected to the main channel when the mold is closed; one end of each of the second channels is connected to the first channel, and the other end extends to the side of one of the first cavities; each of the third channels is connected to one of the first cavities.

3. The molding die structure of the automotive atmosphere lamp according to claim 2, characterized in that: Each of the first flow channel and / or the second flow channel is communicated with one of the ejector pinhole grooves.

4. A molding die structure for a car atmosphere lamp according to any one of claims 2 to 3, characterized in that: Each of the third flow channels is a flat trumpet structure, and a large end portion thereof is connected to the first cavity.

5. The molding die structure of the automotive atmosphere lamp according to claim 4, characterized in that: More than one buffer hole groove is formed on the fixed mold core. When the mold is closed, each buffer hole groove is connected to the second flow channel and the third flow channel.

6. The molding die structure of the automotive atmosphere lamp according to claim 5, characterized in that: The end portion of each second flow channel extends to the side of the third flow channel, and the connection between the second flow channel and the third flow channel is communicated with one of the ejector pinhole grooves.

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