Structure for preventing product center from deforming and sinking in injection mold

Abstract

A structure for preventing the center of a product from deforming and sinking in an injection mold comprises a base, a needle plate, an inner needle fixing plate, a supporting plate and a push plate which are sequentially arranged from bottom to top, a first middle supporting sleeve and a second middle supporting sleeve are arranged on the base, the needle plate is sleeved on the first middle supporting sleeve, the inner needle fixing plate, the supporting plate and the push plate are sleeved on the second middle supporting sleeve, and a return needle is arranged on the needle plate. The inner needle fixing plate and the supporting plate sleeve the return needle, the push plate is fixedly connected with the top of the return needle, an injection molding groove is formed in the top side of the supporting plate, an injection molding cavity is formed in the push plate, an inner needle is arranged on the inner needle fixing plate, the injection molding groove and the injection molding cavity form a product part injection molding structure, and the inner needle is inserted into the injection molding structure through a through hole in the bottom of the injection molding groove; and a shutter is arranged between the supporting plate and the push plate. According to the scheme, the ejector rod of the injection molding machine pushes the needle plate to move upwards, so that the inner needle is drawn out of the product, the middle of the top of the product is prevented from being sunken, then the opening and closing device is opened, the supporting plate and the push plate are pushed, the supporting plate is separated from the push plate under limitation of the limiting screw, and demolding is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, especially to be applied to the structure of preventing product center deformation subsidence in injection mold. BACKGROUND

[0002] In the demolding process of the injection molding piece similar to the cap-shaped structure, the inner needle is easy to pull the top of the product, and then the top of the product appears the defect of concave, and the problem has not been effectively solved at present.

[0003] Therefore, in view of the deficiencies in the prior art, it is necessary to design the structure for preventing product center deformation subsidence in injection mold to solve the above problems. INVENTION CONTENTS

[0004] In order to overcome the deficiencies in the prior art, the utility model aims at providing the structure for preventing product center deformation subsidence in injection mold.

[0005] In order to achieve the above object and other related objects, the technical scheme provided by the utility model is: the structure for preventing product center deformation subsidence in injection mold, including the base, the needle plate, the inner needle fixed plate, the supporting plate and the push plate which are sequentially arranged from bottom to top, the base is equipped with the middle support one and the middle support two, the needle plate is sleeved on the middle support one, the inner needle fixed plate, the supporting plate and the push plate are sleeved on the middle support two, the needle plate is equipped with the needle returning, the inner needle fixed plate and the supporting plate are sleeved on the needle returning, the push plate is fixedly connected with the top of the needle returning, the supporting plate top side is equipped with the injection molding groove, the push plate is equipped with the injection molding cavity, the inner needle fixed plate is equipped with the inner needle, the injection molding groove and the injection molding cavity constitute the product part injection molding structure, the inner needle is inserted into the injection molding structure through the through hole in the bottom of the injection molding groove, and the opening and closing device is arranged between the supporting plate and the push plate.

[0006] The preferred technical scheme is that: the side wall of the supporting plate is equipped with the limiting screw.

[0007] The preferred technical scheme is that: the needle plate is connected with the ejector rod of the injection molding machine.

[0008] The preferred technical scheme is that: the side wall of the supporting plate is equipped with the injection molding channel one which is communicated with the injection molding groove.

[0009] The preferred technical scheme is that: the side wall of the push plate is equipped with the injection molding channel two which is communicated with the injection molding cavity.

[0010] Due to the use of the above technical scheme, the utility model has the beneficial effects that:

[0011] The utility model discloses a structure for preventing product center deformation sinking in injection mold, when using, the injection molding machine ejector rod promotes the needle plate to move up 7mm first, makes the inner needle to draw out from the product, prevents the product top middle recess, then opens the on -off device, continues to push the supporting plate and the push plate, and the supporting plate separates with the push plate under the restriction of the limiting screw, and then completes the stripping, the structure effectively improves the recess problem of product top because of stripping, is suitable for promotion and uses. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is injection stripping structure schematic drawing that the utility model relates.

[0013] Fig. 2 It is injection stripping cross section schematic drawing that the utility model relates. CONCRETE EMBODIMENT

[0014] The following by specific embodiment explains the embodiment of the utility model, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.

[0015] Please refer to Figs. 1-2 It should be noted that in the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance. The terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0016] In the description of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0017] Embodiment:

[0018] As Figs. 1-2 shown, according to one general technical concept of the utility model, provide applied to injection mold prevent product center deformation sinking structure, including by lower to upper set in turn base 1, needle plate 2, inner needle fixed plate 3, backing plate 4 and push plate 5, base 1 is equipped with mid-tos one 11 and mid-tos two 12, needle plate 2 is set on mid-tos one 11, inner needle fixed plate 3, backing plate 4 and push plate 5 are set on mid-tos two 12, needle plate 2 is equipped with needle 21, inner needle fixed plate 3 and backing plate 4 are set on needle, push plate 5 and needle 21 top fixed connection, backing plate 4 top side is equipped with injection slot, push plate 5 is equipped with injection cavity, inner needle fixed plate 3 is equipped with inner needle 31, injection slot and injection cavity constitute product part injection structure, inner needle 31 is inserted in injection structure through the through hole in the bottom of injection slot;Back plate 4 and push plate 5 between being equipped with switch (not draw out).

[0019] As Figs. 1-2 shown, in the utility model one example embodiment, the side wall of backing plate 4 is equipped with limit screw 6.

[0020] As Figs. 1-2 shown, in the utility model one example embodiment, needle plate 2 is connected with injection molding machine top rod.

[0021] As Figs. 1-2 shown, in the utility model one example embodiment, the side wall of backing plate 4 is equipped with injection channel one 41 that communicates injection slot.

[0022] As Figs. 1-2 shown, in the utility model one example embodiment, the side wall of push plate 5 is equipped with injection channel two 51 that communicates injection cavity.

[0023] Therefore, the utility model has the following advantages:

[0024] The structure for preventing product center deformation sinking applied to injection mold is provided, when using, injection molding machine top rod pushes needle plate and moves up first 7mm, so that inner needle is extracted from product, prevent product top middle concave, then open switch, then push backing plate and push plate, backing plate is separated with push plate under the limitation of limit screw, and then complete demolding;The structure effectively improves the concave problem of product top caused by demolding, is suitable for promotion and use.

[0025] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A structure for preventing the center of a product from being deformed and sinking in an injection mold, characterized in that: It includes, from bottom to top, a base, a needle plate, an inner needle fixing plate, a supporting plate and a push plate, the base is provided with a middle support one and a middle support two, the needle plate is sleeved on the middle support one, the inner needle fixing plate, the supporting plate and the push plate are sleeved on the middle support two, the needle plate is provided with a needle returning part, the inner needle fixing plate and the supporting plate are sleeved on the needle returning part, the push plate is fixedly connected with the top of the needle returning part, the top side of the supporting plate is provided with an injection molding groove, the push plate is provided with an injection molding cavity, the inner needle fixing plate is provided with an inner needle, the injection molding groove and the injection molding cavity constitute a product part injection molding structure, the inner needle is inserted into the injection molding structure through the through hole at the bottom of the injection molding groove; an opening and closing device is arranged between the supporting plate and the push plate.

2. The structure for preventing the center of a product from being deformed and sinking in an injection mold according to claim 1, characterized in that: A limiting screw is arranged on the side wall of the supporting plate.

3. The structure for preventing the center of a product from being deformed and sinking in an injection mold according to claim 1, characterized in that: The needle plate is connected with the ejector rod of the injection molding machine.

4. The structure for preventing the center of a product from being deformed and sinking in an injection mold according to claim 1, characterized in that: An injection molding channel one is arranged on the side wall of the supporting plate and communicates with the injection molding groove.

5. The structure for preventing the center of a product from being deformed and sinking in an injection mold according to claim 1, characterized in that: An injection molding channel two is arranged on the side wall of the push plate and communicates with the injection molding cavity.

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