Mold structure for precisely positioning resin product insert

Abstract

The utility model relates to the technical field of motor shell injection molds, in particular to a mold structure for precisely positioning a resin product insert, which is mounted in an injection mold, the injection mold comprises a first mold and a second mold, the first mold is provided with a profiling cavity, the second mold is provided with a movable mold insert with an assembly hole, and the movable mold insert is inserted into the profiling cavity. The mold structure for precisely positioning the resin product insert comprises a shoveling machine and a pushing piece, one end of the shoveling machine is provided with a first inclined plane, the pushing piece is arranged on the injection mold in a sliding mode, one end of the pushing piece extends into the guide hole, one side of the pushing piece is provided with a second inclined plane, and the second inclined plane is provided with a second inclined plane. When the second die and the first die are closed, the shoveling machine moves towards the direction of the pushing piece, the pushing piece is made to move towards the direction of the assembly hole, the installation shaft is pushed through the pushing piece, the installation shaft abuts against the hole wall of the assembly hole, and the advantage of perpendicularity of the installation shaft and the shell is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of motor housing injection molds, and more specifically to a mold structure for precisely positioning a resin product insert. Background Art

[0002] Our patent document (CN211851409U) discloses a motor for lifting and lowering windows, such as Figure 1 As shown, it includes a mounting body, and the mounting body includes a shell 92 and a mounting shaft 91. The shell 92 is connected to the mounting shaft 91. It should be noted that the shell 92 is made of resin.

[0003] During processing, as in this application Figure 2 As shown, the injection mold for molding the housing 92 connected with the mounting shaft 91 includes a movable mold insert 93, the movable mold insert 93 has an assembly hole 931, the mounting shaft 91 is placed in the assembly hole 931 in a clearance fit manner, and one end of the mounting shaft 91 extends into the molding cavity of the injection mold, and the bottom of the mounting shaft 91 is supported by a push rod extending from the bottom of the assembly hole 931, the cavity wall structure of the molding cavity is contoured with the housing 92, and the housing 92 connected to the mounting shaft 91 is obtained by injecting molten resin into the molding cavity when the resin cools and solidifies. It should also be noted that in the motor for lifting the window, the transmission turbine is rotatably mounted on the mounting shaft 91. In view of this, the verticality dimension of the mounting shaft 91 and the injection-molded housing 92 is crucial. However: since the installation shaft 91 and the movable mold insert 93 are clearance-fitted, this results in a gap between the installation shaft 91 and the hole wall of the assembly hole 931. When the molten resin is injected into the molding cavity, the installation shaft 91 is easily skewed by the impact of the liquid resin, resulting in the installation shaft 91 not being connected to the shell 92 in a completely vertical state after the liquid resin is solidified, and there is a certain inclination. This results in the transmission turbine installed on the installation shaft 91 also having a certain inclination relative to the shell 92, affecting the transmission and service life.

[0004] Therefore, there is a need to provide a mold structure that can accurately position a resin product insert to ensure the verticality of the mounting shaft and the housing during injection molding. Summary of the invention

[0005] The main purpose of the present application is to provide a mold structure for precisely positioning a resin product insert, which is installed in an injection mold. The injection mold includes a first mold and a second mold. The first mold has a contour cavity. The second mold is provided with a movable mold insert on a side close to the first mold. The movable mold insert has a through assembly hole, wherein one side of the movable mold insert has a guide hole, and the guide hole extends from the side wall of the movable mold insert to the hole wall of the assembly hole in the direction of the central axis of the movable mold insert, and the guide hole is connected to the assembly hole. The mold structure for precisely positioning a resin product insert includes a shovel machine and a pushing member, the end of the shovel away from the first mold has a first inclined surface, the pushing member is slidably arranged on the injection mold, and one end of the pushing member extends into the guide hole, one side of the pushing member has a second inclined surface, the first inclined surface is in contact with the second inclined surface, when the second mold and the first mold are closed, the shovel abuts against the first mold, and the shovel moves a predetermined distance in the direction of the pushing member, and the pushing member moves a predetermined distance in the direction of the assembly hole, and the verticality of the installation shaft and the housing is achieved by making the pushing member push the installation shaft and making the installation shaft press against the hole wall of the assembly hole.

[0006] Another object of the present application is to provide a mold structure for precisely positioning an insert of a resin product, wherein an abutment member is provided at one end of the push member away from the extension member, and the abutment member is detachably connected to the push member to accommodate installation shafts of various specifications and sizes.

[0007] In order to achieve at least one of the above-mentioned invention purposes, the present application provides a mold structure for precisely positioning a resin product insert, which is installed in an injection mold, wherein the injection mold includes a first mold and a second mold, wherein the first mold has a contour cavity, and the second mold is provided with a movable mold insert on a side close to the first mold, wherein the movable mold insert has a through assembly hole, wherein

[0008] A guide hole is provided on one side of the movable mold insert, and the guide hole extends from the side wall of the movable mold insert in the direction of the central axis of the movable mold insert to the hole wall of the assembly hole, and the guide hole is connected with the assembly hole;

[0009] The mold structure for precisely positioning the resin product insert comprises:

[0010] a shovel, wherein the end of the shovel facing away from the first mold has a first inclined surface; and

[0011] A pushing member, wherein the pushing member is slidably disposed on the injection mold, and one end of the pushing member extends into the guide hole, and one side of the pushing member has a second inclined surface, and the first inclined surface is in contact with the second inclined surface. When the second mold and the first mold are closed, the shovel abuts against the first mold, and the shovel moves a predetermined distance toward the pushing member, and causes the pushing member to move a predetermined distance toward the assembly hole.

[0012] In one or more embodiments of the present application, the injection mold further includes a lifting mechanism, which is installed on the second mold in a liftable manner, and the lifting mechanism extends into the assembly hole from the bottom of the assembly hole.

[0013] In one or more embodiments of the present application, the mold structure for precise positioning of the resin product insert also includes a first seat body, the first seat body includes two first guide columns and two first elastic members, the two first guide columns are installed on the second mold at intervals, each of the first guide columns is sleeved with a first elastic member, the two first guide columns respectively pass through the two ends of the shovel, and the two ends of the first elastic member are respectively connected to the first guide column and the bottom surface of the shovel.

[0014] In one or more embodiments of the present application, the mold structure for precisely positioning the resin product insert also includes a second seat body and a second elastic member, an extension member is provided at one end of the pushing member, and an anti-slip portion is provided at the end of the extension member facing away from the pushing member, the extension member passes through the second seat body, and the two ends of the second elastic member respectively abut against the anti-slip portion and the second seat body.

[0015] In one or more embodiments of the present application, a supporting member is provided at one end of the pushing member facing away from the extending member, and the supporting member is detachably connected to the pushing member.

[0016] In one or more embodiments of the present application, the pushing member has a mounting hole at one end close to the abutting member, and the two ends of the abutting member respectively have an extension portion and a contoured portion, and the extension portion extends into the mounting hole and is bolted to the pushing member.

[0017] In an embodiment of the present application, a mold structure for precisely positioning a resin product insert is installed in an injection mold, the injection mold comprising a first mold and a second mold, the first mold having a contour cavity, a movable mold insert is provided on a side of the second mold close to the first mold, the movable mold insert has a through assembly hole, and a guide hole is provided on one side of the movable mold insert, the side wall of the guide hole automatically extends toward the central axis direction of the movable mold insert to the hole wall of the assembly hole, and the guide hole is connected to the assembly hole, and the mold structure for precisely positioning a resin product insert comprises a shovel and a pusher The shovel machine abuts against the first mold, and the end of the shovel machine away from the first mold has a first inclined surface. The pushing member is slidably arranged on the injection mold, and one end of the pushing member extends into the guide hole. One side of the pushing member has a second inclined surface, and the first inclined surface is fitted with the second inclined surface. When the second mold and the first mold are closed, the shovel machine abuts against the first mold, and the shovel machine moves a predetermined distance in the direction of the pushing member, and makes the pushing member move a predetermined distance in the direction of the assembly hole. The verticality of the installation shaft and the housing is achieved by making the pushing member push the installation shaft and making the installation shaft press against the hole wall of the assembly hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0019] Figure 1 The figure shows a structural schematic diagram of an existing motor installation body for window lifting;

[0020] Figure 2 The figure shows a schematic diagram of the structure in which the mounting shaft is placed at the movable mold insert;

[0021] Figure 3 The figure shows a schematic structural diagram of the relative positions of a mold structure for precisely positioning a resin product insert and a movable mold insert of the utility model;

[0022] Figure 4 Picture shows Figure 3 A local enlarged view of point C;

[0023] Figure 5 The figure shows a schematic diagram of the structure of a mold structure for precise positioning of a resin product insert;

[0024] Figure 6 An exploded view of the pusher and the abutment member is shown. DETAILED DESCRIPTION

[0025] The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0026] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0027] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0028] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0029] Schematic diagram of the mold structure for precise positioning of resin product inserts.

[0030] refer to Figures 3 to 6 According to a preferred embodiment of the utility model, a mold structure for precisely positioning a resin product insert is installed in an injection mold (not marked in the figure), the injection mold includes a first mold and a second mold (not marked in the figure), the first mold has a profiling cavity (not marked in the figure), it should be noted that the first mold is further implemented as a fixed mold side of a plastic mold, the first mold is fixed during the production process, the second mold is further implemented as a movable mold side of a plastic mold, the second mold is close to or away from the first mold during the production process, when the second mold moves toward the first mold and closes with the first mold, the profiling cavity and the wall surface of the second mold are jointly spliced ​​to form a Figure 1 In the molding cavity of the shell 92, a movable mold insert 10 is provided on the side of the second mold close to the first mold, and the movable mold insert 10 has a through assembly hole 101.

[0031] In addition, the injection mold further includes a lifting mechanism (not marked in the figure), which is connected to an external lifting drive device to be installed on the second mold in a liftable manner, and the lifting mechanism extends into the assembly hole 101 from the bottom of the assembly hole 101.

[0032] It should be noted that before injection molding, Figure 1 and Figure 2 The installation shaft 91 described in the invention is placed in the assembly hole 101, and the lifting mechanism provides a supporting force to the installation shaft 91 to prevent the installation shaft 91 from sliding down along the assembly hole 101, and under the support of the lifting mechanism, one end of the installation shaft 91 extends into and closes the corresponding hole in the molding cavity. Furthermore, liquid resin is poured into the molding cavity, and after injection molding, the shell 92 connected to the installation shaft 91 is obtained, and the lifting mechanism provides an upward force to the installation shaft 91 to facilitate demolding of the shell 92.

[0033] It should also be noted that, in order to facilitate blanking, the installation shaft 91 and the assembly hole 101 are clearance-matched. However, since there is a gap between the installation shaft 91 and the hole wall of the assembly hole 101, when liquid resin is poured into the molding cavity, it is easy to impact the installation shaft 91 and cause the installation shaft 91 to tilt at a predetermined angle, resulting in a large verticality error between the installation shaft 91 and the shell 92 after the shell 92 is molded.

[0034] In order to overcome the above technical problems, in the embodiments of the present application, Figure 3 As shown, one side of the movable mold insert 10 has a guide hole 102, and the guide hole 102 extends from the side wall of the movable mold insert 10 to the hole wall of the assembly hole 101 in the direction of the central axis of the movable mold insert 10, and the guide hole 102 is connected with the assembly hole 101; in addition, the mold structure for precise positioning of the resin product insert includes a shovel 20 and a pusher 30, the shovel 20 is movably mounted on the second mold and moves with the second mold, the end of the shovel 20 away from the first mold has a first inclined surface 201, the pusher 30 is slidably arranged on the injection mold, and one end of the pusher 30 extends into the guide hole 102, and one side of the pusher 30 has a second inclined surface 301, and the first inclined surface 201 is in contact with the second inclined surface 301.

[0035] It should be noted that when the second mold approaches the first mold, the shovel 20 abuts against the first mold, and as the second mold further moves toward the first mold and closes with the first mold to form the molding cavity, since the shovel 20 has already abutted against the first mold and the shovel 20 is movably installed on the second mold, the shovel 20 is subjected to the reaction force of the first mold and moves a predetermined distance in the direction of the pusher 30. Since the first inclined surface 201 is in contact with the second inclined surface 301, when the shovel 20 moves downward, the second inclined surface 301 is subjected to a vertical force in addition to a vertical force. In addition, it is also subjected to a horizontal force. Under this force, the pushing member 30 moves a predetermined distance in the direction of the assembly hole 101, and makes the pushing member 30 contact the side wall of the installation shaft 91, and pushes the installation shaft 91 to fit with the hole wall of the assembly hole 101. Since the central axis of the assembly hole 101 and the shell 92 are arranged vertically, and the machining accuracy of the assembly hole 101 is high, when the pushing member 30 applies a pressure to the installation shaft 91 and makes the side wall of the installation shaft 91 press against the hole wall of the assembly hole 101, the verticality of the installation shaft 91 and the formed shell 92 is ensured. Obviously, compared with the prior art, the embodiment of the present application ensures the verticality of the mounting shaft 91 and the housing 92 during injection molding by providing the shovel 20 and the push member 30, thereby avoiding the phenomenon in the prior art that the mounting shaft 91 has different inclination angles as the machining accuracy of the assembly hole 101 changes, and has the advantage of being able to ensure the verticality of the mounting shaft 91 and the housing 92 during injection molding.

[0036] Furthermore, in order to realize that the shovel machine 20 is moved in the height direction and arranged on the second mold, as Figure 5 As shown, the mold structure for precise positioning of the resin product insert also includes a first seat body 40, the first seat body 40 includes two first guide columns 401 and two first elastic members 402, the first elastic members 402 are further implemented as springs, the two first guide columns 401 are installed on the second mold at intervals by bolt connection, each of the first guide columns 401 is sleeved with a first elastic member 402, the two first guide columns 401 pass through the two ends of the shovel 20 respectively, and the two ends of the first elastic member 402 are respectively connected to the first guide columns 401 and the bottom surface of the shovel 20.

[0037] It should be noted that, by providing the first guide column 401, the shovel 20 can be lifted and lowered in the height direction and installed on the injection mold. In addition, by providing the first elastic member 402, the shovel 20 is normally located at a predetermined height. At this predetermined height, one end of the push member 30 is placed in the guide hole 102 and does not extend into the assembly hole 101. When the second mold is away from the first mold, that is, the first mold no longer applies a reaction force to the shovel 20, the shovel 20 moves upward to the initial height under the elastic force of the first elastic member 402.

[0038] Furthermore, if Figure 5 As shown, the mold structure for precise positioning of the resin product insert also includes a second seat body 50 and a second elastic member 501, the second elastic member 501 is a spring, the second seat body 50 is fixedly connected to the second mold, and its fixed connection method includes but is not limited to bolt connection, one end of the pushing member 30 is provided with an extension member 302, the end of the extension member 302 away from the pushing member 30 has an anti-slip portion 3021, the extension member 302 passes through the second seat body 50, and the two ends of the second elastic member 501 are respectively against the anti-slip portion 3021 and the second seat body 50.

[0039] It should be noted that when the end of the pushing member 30 is pressed against the mounting shaft 91, the first elastic member 402 and the second elastic member 501 are both in a stretched state. When the shovel 20 moves upward to the initial height under the elastic force of the first elastic member 402, the second inclined surface 301 is no longer subjected to the pressure of the first inclined surface 201. Then, the second elastic member 501 drives the pushing member 30 to move a predetermined distance away from the movable mold insert 10 under the action of its own elastic force, and makes the end of the pushing member 30 withdraw from the assembly hole 101.

[0040] Furthermore, in order to make the pusher 30 adapt to the mounting shaft 91 of more sizes, as Figure 5 As shown, a supporting member 60 is provided at one end of the pushing member 30 away from the extending member 302 , and the supporting member 60 is detachably connected to the pushing member 30 .

[0041] Specifically, Figure 6 As shown, the pushing member 30 has a mounting hole 303 at one end close to the abutting member 60 , and the two ends of the abutting member 60 respectively have an extension portion 601 and a contoured portion 602 , and the extension portion 601 extends into the mounting hole 303 and is bolted to the pushing member 30 .

[0042] It should be noted that the contoured portion 602 is a concave arc surface, which is arranged in a contour with the side surface of the installation shaft 91 . When the contoured portion 602 abuts against the installation shaft 91 , the concave arc surface fits against the side wall of the installation shaft 91 .

[0043] In summary, the mold structure for precise positioning of the resin product insert based on the embodiment of the present application is explained, which provides the mold structure for precise positioning of the resin product insert with advantages such as being able to ensure the verticality of the installation axis and the shell during injection molding.

[0044] It is worth mentioning that in the embodiment of the present application, the mold structure for precisely positioning the resin product insert is simple in structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the mold structure for precisely positioning the resin product insert provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0045] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A mold structure for precisely positioning a resin product insert, installed in an injection mold, the injection mold comprising a first mold and a second mold, the first mold having a contour cavity, the second mold having a movable mold insert on a side close to the first mold, the movable mold insert having a through assembly hole, characterized in that: A guide hole is provided on one side of the movable mold insert, and the guide hole extends from the side wall of the movable mold insert in the direction of the central axis of the movable mold insert to the hole wall of the assembly hole, and the guide hole is connected with the assembly hole; The mold structure for precisely positioning the resin product insert includes: A shovel, wherein the end of the shovel facing away from the first mold has a first inclined surface; as well as A pushing member, wherein the pushing member is slidably disposed on the injection mold, and one end of the pushing member extends into the guide hole, and one side of the pushing member has a second inclined surface, and the first inclined surface is in contact with the second inclined surface. When the second mold and the first mold are closed, the shovel abuts against the first mold, and the shovel moves a predetermined distance toward the pushing member, and causes the pushing member to move a predetermined distance toward the assembly hole.

2. The mold structure for precise positioning of resin product inserts according to claim 1, characterized in that: The injection mold further comprises a lifting mechanism, which is installed on the second mold in a liftable manner and extends into the assembly hole from the bottom of the assembly hole.

3. The mold structure for precise positioning of resin product inserts according to claim 2, characterized in that: The mold structure for precise positioning of the resin product insert also includes a first seat body, which includes two first guide columns and two first elastic members. The two first guide columns are installed on the second mold at intervals, and each of the first guide columns is sleeved with a first elastic member. The two first guide columns pass through the two ends of the shovel respectively, and the two ends of the first elastic member are connected to the first guide column and the bottom surface of the shovel respectively.

4. The mold structure for precise positioning of resin product inserts according to claim 3, characterized in that: The mold structure for precisely positioning the resin product insert also includes a second seat body and a second elastic member. An extension member is provided at one end of the pushing member, and an anti-slip portion is provided at the end of the extension member facing away from the pushing member. The extension member passes through the second seat body, and the two ends of the second elastic member respectively abut against the anti-slip portion and the second seat body.

5. The mold structure for precise positioning of resin product inserts according to claim 4, characterized in that: An abutment member is provided at one end of the pushing member away from the extending member, and the abutment member is detachably connected to the pushing member.

6. The mold structure for precise positioning of resin product inserts according to claim 5, characterized in that: The pushing member has a mounting hole at one end close to the abutting member, and the two ends of the abutting member respectively have an extending portion and a contoured portion, and the extending portion extends into the mounting hole and is bolted to the pushing member.

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