An inner buckle core pulling device mechanism and its forming mold

Abstract

The present invention provides an inward buckle core-pulling device mechanism and a forming mold thereof, which are used to form an inward buckle structural part with an inward buckle structural portion, the inward buckle structural portion including a wall portion, the wall portion having an inner side surface, an outer side surface, and an inward buckle portion; the inward buckle core-pulling device mechanism includes: a slider component, which is arranged on one side of the fixed mold and the movable mold and is configured to slide in response to mold opening; an outer wall forming component, which is used to form the outer side surface, the outer wall forming component is arranged on the slider component and moves synchronously with the slider component; an inner wall forming component, which is used to form the inner side surface and the inward buckle portion, and the inner wall forming component is slidably arranged on the slider component; a force-applying component, which is configured to move following the other side of the fixed mold and the movable mold when the mold is opened; the force-applying component is configured to limit the inner wall forming component to keep the inward buckle portion stationary within a first sliding distance of the slider component after the mold is opened; the sliding configuration of the inner wall forming component is to start sliding relative to the wall portion after the slider component slides the first distance, and the wall portion is elastically opened radially by being pushed by the inner wall forming component.

Description

[0001] The present invention relates to the field of mold forming, and in particular to an inner buckle core pulling device mechanism and a forming mold thereof. Background Art

[0002] With social progress, technological advancement, and rising living standards, the public's demand for daily consumer goods is growing. Driven by market demand and industry competition, product updates are accelerating, and product structures are becoming increasingly complex, placing higher demands on mold manufacturing and structural design. To meet the production requirements of diverse product structures, a variety of targeted mold structures have emerged, effectively solving production problems, urgently meeting market demand, and improving and enhancing the public's material living standards.

[0003] During the production process, existing structural parts with inward buckles are usually demolded using a slanted top or forced release structure. The slanted top method is complex and requires a large space. In some small spaces, the inward buckle structure causes the molded part to easily wear and fall off, resulting in high production and maintenance costs. The forced release method is often suitable for buckles that are prone to wear, resulting in a high production defect rate. In view of the above problems, the inventors proposed this application. Summary of the Invention

[0004] Based on the above problems, the present invention aims to provide an inward buckle core pulling device mechanism and its forming mold, which can at least solve the technical problem of buckle wear.

[0005] The present invention is implemented as follows. In a first aspect, the present invention provides an inward buckling core-pulling device mechanism for forming an inward buckling structural member having an inward buckling structural portion, wherein the inward buckling structural portion includes at least one wall portion in the circumferential direction, the wall portion having an inner side surface, an outer side surface, and an inward buckling portion disposed on the inner side surface and protruding or recessed in the radial direction; the inward buckling core-pulling device mechanism includes:

[0006] a slider member disposed on one of the fixed mold and the movable mold and configured to slide in response to mold opening;

[0007] An outer wall forming component, used for forming the outer side surface, wherein the outer wall forming component is arranged on the slider component and moves synchronously with the slider component;

[0008] an inner wall forming component for forming the inner side surface and the inner buckle portion, the inner wall forming component being slidably disposed on the slider component; and a force applying component configured to move with the other of the fixed mold and the movable mold when the mold is opened;

[0009] The force-applying component is configured to keep the inner wall forming component stationary relative to the inner buckle portion within a first sliding distance of the slider component after the mold is opened;

[0010] The inner wall forming component is configured to slide relative to the wall portion after the slider component slides a first distance, and the wall portion is pushed by the inner wall forming component to elastically expand in the radial direction.

[0011] Preferably, the inner side surface and / or the outer side surface of the wall portion is an arc-shaped structure.

[0012] Preferably, the outer side surface of the wall portion is configured as an inclined surface with a gradually decreasing radial dimension along the sliding direction of the slider component, and after moving a first distance, the wall portion elastically expands to form a gap with the outer wall forming component in the radial direction;

[0013] When moved a first distance, the outer wall forming component covers a portion of the outer side surface when viewed in the radial direction.

[0014] Preferably, the outer side surface of the wall portion is configured as an inclined surface with gradually decreasing radial dimensions along the sliding direction of the slider component; when moving a first distance, the outer wall forming component does not overlap with the outer side surface when viewed from the radial direction.

[0015] Preferably, the inward-buckling structure includes at least two wall portions in the circumferential direction, and the two or more wall portions are arranged at equal intervals in the circumferential direction.

[0016] In a second aspect, the present invention further provides a molding mold, wherein the inward-clicking structural member includes an annular structure portion, the annular structure portion is composed of multiple side walls, the inward-clicking structure portion is arranged on at least one of the side walls, and the wall portion extends in a direction intersecting with the side walls; the molding mold includes a fixed mold and a movable mold, the fixed mold and the movable mold are relatively movable in the up and down directions and are used to mold the annular structure portion when engaged, and the slider component slides along the direction in which the wall portion extends.

[0017] Preferably, a force-applying component is arranged on the fixed mold, and the force-applying component is inserted into the slider component when the fixed mold and the movable mold are in the clamped state. The force-applying component includes a linear stop portion and an oblique push portion, and the linear stop portion is configured to limit the movement of the inner wall molding component when the oblique push portion pushes the slider component to slide.

[0018] Preferably, the inner wall molding component includes an inner wall molding insert and a sliding member, the inner wall molding insert is slidably supported on the slider seat through the sliding member, the sliding member includes a shift hole, the shift hole has a shift portion extending along the extension direction of the straight shift portion, and an inclined push hole slidably engaged with the inclined push portion, when the slider seat follows the movable mold away from the fixed mold in the front-to-back direction, the inclined push rod is used to push at least one of the inner wall molding component and the slider component to slide.

[0019] Preferably, an escape space is provided on the slider seat to maintain a non-contact state between the linear stop portion and the slider seat when the slider seat slides within the first distance.

[0020] Preferably, an oblique push rod is arranged on the fixed mold, and the force-applying component and the oblique push rod are respectively inserted into the slider component when the fixed mold and the movable mold are in the clamped state. The oblique push rod pushes the slider component during the mold opening process, and the force-applying component includes a linear stop portion, which is configured to maintain the inner wall molding component in an inactive state relative to the inner buckle portion when the oblique push rod slides within the first distance.

[0021] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0022] 1. The above-mentioned solution of the present invention provides an inner buckle core pulling device mechanism. After the mold is opened, the slider component slides within a first distance, and the force-applying component is designed to keep the inner wall molding component stationary relative to the inner buckle part. After moving the first distance, the inner wall molding component begins to push the inner buckle part to move, so that the inner buckle part can be detached by elastic expansion, thereby preventing the inner buckle part from being worn in the forced detachment mode due to strong pulling of the inner buckle part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0024] Figure 1 It is a structural schematic diagram of an inward buckling structural member with an inward buckling structural portion of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the inner buckle structure, the inner buckle core pulling device mechanism and the movable mold core of the present invention;

[0026] Figure 3 Schematic diagram of the coordination structure of the inner wall forming component, the force applying component and the slider component of the present invention;

[0027] Figure 4 Schematic diagram of the exploded structure of the inner wall forming component, the force applying component and the slider component of the present invention;

[0028] Figure 5 It is a schematic diagram of the broken surface structure of the force-applying component and the slider component of the present invention.

[0029] Reference numerals:

[0030] 1. Moving mold core; 2. Inward buckle core pulling device mechanism; 3. Slider component; 4. Outer wall molding component; 5. Inner wall molding component; 51. Inward buckle molding part; 52. Sliding part; 521. First gear part; 522. First oblique push hole part; 523. Second gear part; 524. Second oblique push hole part; 6. Force-applying component; 61. Linear gear part; 62. Oblique push part; 7. Oblique push rod; S. Inward buckle structural part; S1. Annular structural part; S2. Wall part; S21. Outer side surface; S22. Inner side surface; S23. Inward buckle part. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "upper end", "lower end", "upper section", "lower section", "upper side", "lower side", "middle", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] Now combined Figures 1 to 5 The structure and function of the solution of this application are described in detail.

[0034] Now combined Figures 1 to 5 The structure and function of the solution of this application are described in detail.

[0035] The present invention provides a forming mold for an inward buckle structural part S, which includes a fixed mold and a movable mold. The fixed mold includes a fixed outer mold (not shown) and a fixed mold core (not shown), and the movable mold includes a movable mold core 1, a movable outer mold (not shown) and an inward buckle core pulling device mechanism 2. The inward buckle core pulling device mechanism 2 cooperates with the fixed mold core and the movable mold core 1 to form a forming cavity for forming the inward buckle structural part S. The inward buckle core pulling device mechanism 2 can be slidably configured on the movable mold. Figure 2 A tilted push rod 7 is fixed to the fixed mold and is fixed to a support member on the fixed mold. When the movable mold and the fixed mold are in the closed state, the tilted push rod 7 engages with the inner buckle core pulling device 2 and pushes the core pulling device away from the inner buckle structure S as the movable mold moves away from the fixed mold. As the movable mold moves forward and backward relative to the fixed mold, the core pulling device is pushed by the tilted push rod 7 toward the side of the movable mold.

[0036] refer to Figure 1 The inward buckle structure S used for molding in the present application includes an annular structure portion S1, which is composed of multiple side walls, and the inward buckle structure portion is arranged on at least one of the side walls. The inward buckle structure portion includes at least one wall portion S2 in the circumferential direction, and the wall portion S2 has an inner side surface S22, an outer side surface S21, and an inward buckle portion S23 arranged on the inner side surface S22 and protruding or recessed in the radial direction. The wall portion S2 extends toward the side direction of the movable mold core 1. The inward buckle core pulling device mechanism 2 includes a slider component 3, an outer wall molding component 4, an inner wall molding component 5 and a force-applying component 6. The slider component 3 is arranged on the movable mold and is configured to slide in response to mold opening. The outer wall molding component 4 is used to mold the outer side surface S21, and the outer wall molding component 4 is arranged on the slider component 3 and moves synchronously with the slider component 3. The inner wall forming component 5 has an inner buckle forming portion 51 for forming the inner side surface S22 and the inner buckle portion S23. The inner wall forming component 5 can be slidably arranged on the slider component 3, and the force-applying component 6 is fixedly connected to the fixed mold to follow the fixed mold movement when the mold is opened.

[0037] The force-applying component 6 is inserted into the slider component 3 when the fixed mold and the movable mold are in the clamped state. The force-applying component 6 includes a linear stopper 61 and an oblique pusher 62. An obtuse angle is formed between the linear stopper 61 and the oblique pusher 62. The linear stopper 61 is configured to limit the movement of the inner wall molding component 5 when the oblique pusher 62 pushes the slider component 3 to slide. The inner wall molding component 5 includes an inner wall molding insert and a sliding member 52. The inner wall molding insert is slidably supported on the slider seat by the sliding member 52. The sliding member 52 includes a stopper hole. The stopper hole has a stopper extending in the extension direction of the linear stopper 61 and an oblique pusher hole that slidably cooperates with the oblique pusher 62. The stopper includes a first stopper 521 and a second stopper 523 in the sliding direction of the slider seat. The linear stopper 61 can be inserted between the first stopper 521 and the second stopper 523. The oblique push hole includes a first oblique push hole portion 522 and a second oblique push hole portion 524 in the sliding direction of the slider seat. The oblique push portion 62 can be inserted between the first oblique push hole portion 522 and the second oblique push hole portion 524. The oblique push portion 62, the first oblique push hole portion 522, and the second oblique push hole portion 524 extend in parallel directions. When the slider seat follows the movable mold away from the fixed mold in the front-to-back direction, the oblique push rod 7 is used to push at least one of the inner wall molding component 5 and the slider component 3 to slide. The slider seat is provided with an escape space to maintain the linear stop portion 61 in a non-contact state with the slider seat when the slider seat slides within the first distance.

[0038] The force-applying member 6 is configured to maintain the inner wall forming member 5 stationary relative to the inner buckle portion S23 within a first sliding distance of the slider member 3 after mold opening. The inner wall forming member 5 is configured to slide relative to the wall portion S2 after the slider member 3 slides the first distance, and the wall portion S2 is elastically expanded radially by the push of the inner wall forming member 5.

[0039] After the mold is opened, the slider component 3 slides within the first distance, and the linear stop portion 61 is designed to keep the inner wall molding component 5 stationary relative to the inner buckle portion S23. After moving the first distance, the inner wall molding component 5 begins to push the inner buckle portion S23 to move, so that the inner buckle portion S23 can be detached by elastic expansion, thereby preventing the inner buckle portion S23 from being worn due to forced pulling of the inner buckle portion S23.

[0040] In one embodiment, the inner side surface S22 and / or the outer side surface S21 of the wall portion S2 are arc-shaped. This arc-shaped structure cannot be used to form the buckle portion by using a split mold. Therefore, the inner buckle portion S23 is formed by a side-drawn inner buckle core-pulling component to prevent the inner buckle portion S23 from being worn.

[0041] In one embodiment, the outer side surface S21 of the wall portion S2 is configured as an inclined surface with a gradually decreasing radial dimension along the sliding direction of the slider member 3. After moving a first distance, the wall portion S2 elastically expands to create a radial gap with the outer wall forming member 4. When moving the first distance, the outer wall forming member 4 partially covers the outer side surface S21 when viewed in the radial direction. This approach reduces the sliding stroke of the slider member 3. For longer wall portions S2, this can save mold volume and reduce demolding time, thereby reducing production costs.

[0042] In one embodiment, the outer side surface S21 of the wall portion S2 is configured as an inclined surface with a gradually decreasing radial dimension along the sliding direction of the slider member 3. When moving a first distance, the outer wall forming member 4 and the outer side surface S21 do not overlap when viewed in the radial direction. This ensures that the wall portion S2 does not contact the outer wall forming member 4 when deforming, thereby minimizing the force exerted on the inner buckle portion S23 in the direction of disengagement.

[0043] In one embodiment, the inward buckling structure includes at least two circumferential wall portions S2, with the two or more wall portions S2 being equally spaced circumferentially. Molding can be achieved using the aforementioned inward buckling core-pulling device mechanism 2. For example, the inward buckling structure comprises three circumferentially equally spaced wall portions S2, which cannot be molded using a front-to-back mold opening method.

[0044] In one embodiment, an inclined push rod 7 is provided on the fixed mold, and the force-applying component 6 and the inclined push rod 7 are respectively inserted into the slider component 3 when the fixed mold and the movable mold are in the clamped state. The inclined push rod 7 pushes the slider component 3 during the mold opening process, and the force-applying component 6 includes a linear stop portion 61, and the linear stop portion 61 is configured to maintain the inner wall molding component 5 in an inactive state relative to the inner buckle portion S23 when the inclined push rod 7 slides within the first distance.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An inner buckle core pulling device mechanism, characterized in that: The invention is used to form an inward buckling structural part having an inward buckling structural part, wherein the inward buckling structural part includes at least one wall portion in the circumferential direction, the wall portion has an inner side surface, an outer side surface, and an inward buckling portion disposed on the inner side surface and protruding or recessed in the radial direction; the inward buckling core pulling device mechanism includes: a slider member disposed on one of the fixed mold and the movable mold and configured to slide in response to mold opening; The outer wall forming component is used to form the outer side surface. The outer wall forming component is configured on the slider component and moves synchronously with the slider component. an inner wall forming component for forming the inner side surface and the inner buckle portion, the inner wall forming component being slidably disposed on the slider component; and a force applying component configured to move with the other of the fixed mold and the movable mold during mold opening; the force applying component being configured to keep the inner wall forming component stationary relative to the inner buckle portion within a first sliding distance of the slider component after mold opening; The inner wall forming component is configured to slide relative to the wall portion after the slider component slides a first distance, and the wall portion is pushed by the inner wall forming component to elastically expand in the radial direction; The fixed mold is provided with a force-applying component, which is inserted into the slider component when the fixed mold and the movable mold are in a mold-clamping state. The force-applying component includes a linear stop portion and an oblique push portion. The linear stop portion is configured to limit the movement of the inner wall molding component when the oblique push portion pushes the slider component to slide. The inner wall molding component includes an inner wall molding insert and a sliding member. The inner wall molding insert is slidably supported on the slider seat by the sliding member. The sliding member includes a stop hole, which has a stop portion extending along the extension direction of the linear stop portion and an oblique push hole slidably matched with the oblique push portion. When the slider seat follows the movable mold away from the fixed mold in the front-rear direction, the oblique push rod is used to push at least one of the inner wall molding component and the slider component to slide. The inner side surface and / or the outer side surface of the wall portion is an arc-shaped structure; The outer side surface of the wall portion is configured as an inclined surface with a gradually decreasing radial dimension along the sliding direction of the slider member. After moving the first distance, the wall portion is elastically opened and has a gap with the outer wall forming member in the radial direction; When the outer wall forming component is moved by the first distance, the outer wall forming component covers a portion of the outer side surface when viewed from the radial direction; The outer side surface of the wall portion is configured as an inclined surface with a gradually decreasing radial dimension along the sliding direction of the slider component; When the outer wall forming part is moved by the first distance, the outer wall forming part does not overlap with the outer side surface when viewed in the radial direction.

2. The inner buckle core pulling device according to claim 1, characterized in that: The inward buckling structure includes at least two wall portions in the circumferential direction, and the two or more wall portions are arranged at equal intervals in the circumferential direction.

3. A forming mold, characterized in that: It includes the core-pulling device according to any one of claims 1 to 2, wherein the inward-clicking structural member includes an annular structural portion, the annular structural portion is composed of a plurality of side walls, the inward-clicking structural portion is arranged on at least one of the side walls, and the wall portion extends in a direction intersecting with the side walls; the forming mold includes a fixed mold and a movable mold, the fixed mold and the movable mold are relatively movable in the up and down directions and are used to form the annular structural portion when engaged, and the slider component slides along the direction in which the wall portion extends.

4. The forming die according to claim 3, wherein: An escape space is provided on the slider seat to maintain a non-contact state between the linear stop portion and the slider seat when the slider seat slides within a first distance.

5. The forming die according to claim 3, wherein: The fixed mold is provided with an oblique push rod, and the force-applying component and the oblique push rod are respectively inserted into the slider component when the fixed mold and the movable mold are in the clamped state. The oblique push rod pushes the slider component during the mold opening process, and the force-applying component includes a linear stop portion, which is configured to maintain the inner wall molding component in an inactive state relative to the inner buckle portion when the oblique push rod slides within the first distance.

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