Automobile split armrest base and injection mold thereof

Abstract

The invention discloses an automobile split type armrest base which comprises an armrest base body and a pair of armrest upper covers, the armrest upper covers on the two sides are connected in a hinged mode through rotating shafts on the armrest base body, and shielding grooves used for hiding corners when the armrest upper covers are opened are formed in the armrest base body. The handrail base injection mold comprises an upper mold and a lower mold, the upper mold is provided with a shovel base, the lower mold is provided with a front mold tunnel sliding block matched with the inclined face of the lower portion of the shovel base, and the front mold tunnel sliding block is provided with a forming hole used for injection molding of a rotating shaft on one side. The handrail base is provided with a shielding hole to hide a wrapping corner generated when the handrail is rotated and opened, and leakage is avoided; according to the mold structure design, a front mold tunnel inner loose core and a rear mold secondary sliding block inner loose inclined top are arranged, integrated injection molding of a rotating shaft and a shielding cavity which are oppositely arranged is achieved, and molding is easy and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of automobile interior decoration, in particular to an automobile split-type armrest base and an injection mold thereof. Background Art

[0002] The armrest box cover of the automobile armrest box is designed as a two-half split structure. The two halves of the cover are flipped outward to open, and the cover has a large opening space, which is convenient for taking and placing items. The existing armrest box has the following problems that need to be solved: a. After the split armrest is opened, the corners produced by the upper cover of the armrest are covered; b. The gap between the split armrest base and the upper cover of the split armrest must be reduced while ensuring that the armrest can be opened normally; c. The injection mold structure of the split armrest base is mass-producible, and the product has no external parting line leakage.

[0003] For example, the patent CN 113276746A discloses a wrapped split armrest, which includes an armrest frame, a split cover assembly arranged on the armrest frame, a skin layer arranged on the cover assembly, a receiving groove arranged at the corner of the cover assembly, and the corner of the skin layer is snap-fitted into the receiving groove; each side cover is hingedly connected to the armrest frame through a set of rotating shafts arranged on the armrest frame. At present, in order to improve the structural reliability of the rotating shaft, the rotating shaft and the armrest frame are integrally injection molded, which has certain difficulties in the design of the injection mold. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a car split-type armrest base and an injection mold thereof, so as to achieve the purpose of shielding the corners after the upper cover is opened and simple one-piece molding.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A split-type armrest base for automobiles comprises an armrest base and a pair of armrest upper covers, wherein the armrest upper covers on each side are hingedly connected via a rotating shaft on the armrest base, and a shielding groove is provided on the armrest base for hiding the corners of the armrest upper covers when the armrest upper covers are opened.

[0007] The front part of the armrest upper cover is a reverse arc-shaped structure, a curved corner is formed at the front corner of the armrest upper cover, and the shielding groove is a shielding hole adapted to the curved corner.

[0008] A rotating shaft seat is arranged on the armrest base, and a rotating shaft is arranged on the rotating shaft seat. The rotating shaft, the rotating shaft seat and the armrest base are an integral injection molded part.

[0009] A protruding rotating shaft is provided on both sides of each rotating shaft seat, and the rotating shaft located at the front of the armrest base is arranged corresponding to the shielding groove.

[0010] The edge of the armrest base is provided with an arc-shaped groove matched with the edge of the upper cover of the armrest, the curved surface of the arc-shaped groove is arranged upward, and the shielding groove is located at the front end of the arc-shaped groove.

[0011] An injection mold for the automobile split armrest base comprises an upper mold and a lower mold, wherein the upper mold is provided with a shovel base, the lower mold is provided with a front mold tunnel slider matched with the lower inclined surface of the shovel base, and the front mold tunnel slider is provided with a molding hole for injection molding of a rotating shaft on one side.

[0012] The lower mold is provided with a rear mold main slider and an oil cylinder for driving the rear mold main slider to move. The rear mold main slider is provided with a movable rear mold small slider. The inner end of the rear mold small slider is provided with a protruding structure for shielding groove molding.

[0013] An oblique guide column is arranged at the lower part of the upper die, and an oblique guide hole movably matched with the oblique guide column is arranged on the small sliding block of the rear die.

[0014] The matching inclined surfaces of the rear mold small slider and the rear mold main slider are arranged to tilt upward from the inside to the outside.

[0015] A movable slider bevel is provided in the small slider of the rear mold, the inner end of the slider bevel extends from the inner side of the small slider of the rear mold, the inner end of the slider bevel is provided with a mold hole for injection molding of the other side shaft, a guide block is provided on the main slider of the rear mold, and a guide groove matching the guide block is provided on the slider bevel along the axial direction of the shaft.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The automobile split armrest base and its injection mold structure are reasonably designed. The armrest base is designed with a shielding hole to hide the covered corner generated when the armrest is rotated and opened to avoid leakage. The mold structure is designed to pull the core inside the front mold tunnel and pull the inclined top in the secondary slider of the rear mold to achieve integrated injection molding of the relatively set rotating shaft and the shielding hole, which is simple to mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 and Figure 2 It is a schematic diagram of the split-type handrail structure of the present invention.

[0020] Figure 3 It is a schematic cross-sectional view of the armrest base of the present invention.

[0021] Figure 4 and Figure 5 It is a schematic diagram of the structure of the armrest base of the present invention.

[0022] Figure 6 This is a schematic diagram of the main structure of the handrail base mold of the present invention.

[0023] Figure 7 and Figure 8 This is a BB cross-sectional view of the mold opening at the rotating shaft seat of the present invention.

[0024] Fig. 9 It is a schematic diagram of the cross-section of the shielding hole DD of the present invention.

[0025] Figures 10 to 12 This is a CC cross-sectional view of the mold opening at the rotating shaft of the present invention. Fig.13 It is an enlarged schematic diagram of the inclined top position of the slider of the present invention.

[0026] In the figure:

[0027] 1: shielding hole, 2: upward curved surface, 3: rotating shaft seat, 4: rotating shaft, 5: shovel base, 6: front mold tunnel slider, 7: rear mold main slider, 8: rear mold small slider, 9: slider inclined top, 10: inclined guide column, 11: oil cylinder, 12: inclined top seat, 13: front mold core, 14: spring, 15: handrail base, 16: handrail covering cover. DETAILED DESCRIPTION

[0028] Although the present invention is shown and described herein with reference to specific embodiments, the present invention is not intended to be limited to the details shown. Rather, various modifications may be made in the details within the equivalent scope and range of the claims without departing from the present invention. In the accompanying drawings, the same item numbers refer to the same elements.

[0029] Various terms are used throughout this disclosure to describe the physical shape or arrangement of features. Many of these terms are used to describe features that conform to a cylindrical or substantially cylindrical geometry with the feature as the radius and a central axis perpendicular to the radius. Unless a different meaning is specified, the terms are given the following meanings. The terms "longitudinal," "longitudinal," "axial," and "axially" refer to a direction, dimension, or orientation parallel to the central axis. The terms "radial" and "radially" refer to a direction, dimension, or orientation perpendicular to the central axis. The terms "inward" and "inwardly" refer to a direction, dimension, or orientation extending in a radial direction toward the central axis. The terms "outward" and "outwardly" refer to a direction, dimension, or orientation extending in a radial direction away from the central axis.

[0030] In the specification, relative terms such as "horizontal", "vertical", "upward", "downward", "top" and "bottom" and derivatives thereof (e.g., "horizontal", "downward", "upward", etc.) should be interpreted as referring to the direction being described or shown in the drawings being discussed. These relative terms are for convenience of description and are generally not intended to require a particular orientation.

[0031] The specific implementation modes of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0032] like Figures 1 to 5 As shown, the automobile double-leaf armrest base includes an armrest base 15 and a pair of armrest upper covers. The armrest upper covers on each side are hingedly connected by a rotating shaft 4 on the armrest base. The armrest upper covers can be flipped outward to open. The armrest upper covers are wrapped with a skin to form an armrest covering upper cover 16. The pair of armrest covering upper covers are flipped outward to open, and the space is relatively large, which is convenient for taking and placing items.

[0033] The armrest base is provided with a shielding groove for hiding the corner of the armrest cover when it is opened. Preferably, the front part of the armrest cover is an inverted arc structure, the front corner of the armrest cover forms an arc corner, and the shielding groove is a shielding hole 1 adapted to the arc corner.

[0034] The present invention adopts a shielding hole designed on the armrest of the split armrest base to hide the leakage of the covering corner generated when the armrest is rotated and opened; structurally, an inward-locking groove is designed on one side of the armrest base close to the armrest cover plate; when the armrest covering upper cover is flipped outward to open, the outer side edge of the armrest covering upper cover will flip into the groove, and the opening angle of the armrest covering upper cover is relatively large.

[0035] A shaft seat 3 is provided on the armrest base, and the shaft is provided on the shaft seat. The shaft, the shaft seat and the armrest base are an integral injection molded part. The entire armrest base is integrally injection molded through an injection mold, and the structure is stable and reliable, and the molding is efficient.

[0036] Two rotating shaft seats 3 are provided on each side of the armrest base. The rotating shaft seats are outward-turned boss structures. Each of the rotating shaft seats is provided with a protruding rotating shaft 4 on both sides. A pair of rotating shafts on both sides of each rotating shaft seat are arranged opposite to each other. The pair of rotating shafts and the rotating shaft seat are integrally injection molded, and the structure is stable and reliable.

[0037] A rotating shaft located at the front of the armrest base is arranged corresponding to the shielding groove. The two are close to each other, and molding is relatively difficult. The present invention adopts an injection mold. The mold structure is designed to pull the core inside the front mold tunnel and pull the inclined top in the secondary slider of the rear mold, so as to realize the integrated injection molding of the relatively arranged rotating shaft and the shielding hole, which is simple to mold.

[0038] The edge of the armrest base is provided with an arc groove that matches the edge of the upper cover of the armrest. The curved surface of the arc groove is set upward, and the shielding groove is located at the front end of the arc groove. The armrest base is designed with an upward curved surface 2 at the matching point between the split armrest base and the upper cover of the armrest to ensure that there is no interference when the upper cover is rotated and opened, and the visual gap is small when the upper cover is closed; reducing the gap between the split armrest base and the split armrest covering the upper cover ensures that the armrest can be opened normally.

[0039] like Figures 6 to 13As shown, the injection mold of the automobile split armrest base includes an upper mold and a lower mold. The upper mold is provided with a shovel base 5, and the lower mold is provided with a front mold tunnel slider 6 that cooperates with the lower inclined surface of the shovel base. The front mold tunnel slider is provided with a molding hole for injection molding of a rotating shaft on one side.

[0040] The front mold core 13 of the lower mold is provided with a limiting guide structure for limiting the moving direction of the front mold tunnel slider, and the limiting guide structure can be a guide groove, and the moving direction of the front mold tunnel slider can only move along the axial direction of the rotating shaft; Fig.11 and Fig.12 As shown, one side of the front mold tunnel slider cooperates with the inclined surface of the lower end side of the shovel base through an inclined surface, and the other side of the front mold tunnel slider is provided with a compressed spring 14. The shovel base moves upward with the upper mold, and the front mold tunnel slider moves toward the shovel base side under the action of the spring elastic force, thereby realizing the core pulling molding of the rotating shaft on one side.

[0041] The lower mold is provided with a rear mold main slider 7 and a cylinder 11 for driving the rear mold main slider to move. The rear mold main slider is provided with a movable rear mold small slider 8. The inner end of the rear mold small slider is provided with a protruding structure for shielding the groove molding. The rear mold main slider is driven by the cylinder to move outward and exit, thereby driving the rear mold small slider to slide together for molding.

[0042] The armrest base is designed with a curved surface upward at the matching part of the split armrest base and the armrest upper cover to ensure that there is no interference when the upper cover is rotated open, and the visual gap is small when the upper cover is closed; the small slider of the rear mold needs to be tilted upward when moving to exit; for this purpose, an inclined guide column 10 is provided at the lower part of the upper mold, and the inclined guide column 10 is tilted outward, and an inclined guide hole that cooperates with the inclined guide column is provided on the small slider of the rear mold, and the matching inclined surfaces of the small slider of the rear mold and the main slider of the rear mold are tilted upward from the inside to the outside.

[0043] When the upper mold moves upward, it drives the inclined guide column to move together. The inclined guide column will drive the small slider of the rear mold to tilt and exit on the sliding inclined surface of the main slider of the rear mold. Since the matching inclined surfaces of the small slider of the rear mold and the main slider of the rear mold are inclined upward inclined surfaces, they are linked to the main slider of the rear mold to achieve upward molding of the side groove curved surface of the handrail base.

[0044] A rotating shaft located at the front of the armrest base is arranged corresponding to the shielding groove, and the two are close to each other, so molding is relatively difficult; for this reason, Fig.13 As shown, a movable slider bevel 9 is provided in the small slider of the rear mold, and the inner end of the slider bevel extends from the inner side of the small slider of the rear mold. The inner end of the slider bevel is provided with a mold hole for injection molding of the other side shaft, and a guide block is provided on the bevel seat 12 on the main slider of the rear mold, and a guide groove matching the guide block is provided on the slider bevel along the axial direction of the shaft.

[0045] The inclined top of the slider is set horizontally. When the small slider of the rear mold moves outward, it will drive the inclined top of the slider to move horizontally along the axis of the rotating shaft. The movement guidance is realized by the cooperation of the guide block and the guide groove, so that the shielding hole and a nearby rotating shaft are formed together.

[0046] The automobile split armrest base and the injection mold structure of the present invention are reasonably designed. The armrest base is designed with a shielding hole to hide the covering corner generated when the armrest is rotated and opened to avoid leakage. The mold structure is designed to pull the core inside the front mold tunnel and pull the inclined top in the secondary slider of the rear mold to achieve integrated injection molding of the relatively arranged rotating shaft and the shielding hole, which is simple to mold.

[0047] The specific structure and molding process of the present invention are described as follows:

[0048] There are four raised 7-shaped pivot seats on the base of the split armrest, and there are two raised circular pivots on both sides of each pivot seat. A total of eight pivots are used to install the split armrest cover that can be rotated open. For the stability of rotation, these four pivots are as close to the four corners of the armrest base as possible. The front part of the armrest near the front row is designed with a reverse arc corner design. In order to ensure that the arc corner of the armrest cover does not leak out when the cover rotates, the base armrest is designed with a shielding hole, so that the armrest cover is rotated and opened, so that the appearance of this place is not visible.

[0049] Involving the handrail base mold, the rotating shafts near the two shielding holes are demolded by the secondary slider plus the inclined top structure, and the other 6 rotating shafts are demolded by the front mold tunnel slider. The handrail base design and the upper cover of the handrail are matched with the curved surface upward mold design of the secondary slider demolding.

[0050] The entire split handrail module is installed on the handrail base, and the handrail base is fixed to the handrail box bucket by a clip. The handrail base mold, the front mold tunnel slider is installed inside the front mold through a shovel base and a spring, the rear mold secondary slider, the small slider is on the main slider, and there is a slanted top in the second small slider;

[0051] The upper cover of the armrest product rotates 90° around the armrest base shaft to open and close the armrest; the tunnel slider of the front mold of the armrest base mold drags out the shaft inside the front mold under the force of the shovel base detaching from the T-slot; the secondary slider of the rear mold of the armrest base mold and the inclined top inside the slider, first the small slider shaft block and the inclined top inside the slider detach from the shaft of the base at the same time, and finally the main slider drives the small slider and the inclined top to detach from the product together.

[0052] The double-leaf armrest of the present invention opens smoothly, has a reliable structure, an attractive appearance, and a low product cost; at the same time, the number of product molds is simplified, the mold processing is easy to realize, and the mold cost is reduced, thereby achieving mass production stability.

[0053] The above is only an explanation of the preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0054] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A split-type armrest base for automobiles, comprising an armrest base and a pair of armrest upper covers, wherein the armrest upper covers on each side are hingedly connected via a rotating shaft on the armrest base, and characterized in that: The armrest base is provided with a shielding groove for hiding the corners of the armrest upper cover when it is opened.

2. The automobile split-type armrest base as claimed in claim 1, characterized in that: The front part of the armrest upper cover is a reverse arc-shaped structure, a curved corner is formed at the front corner of the armrest upper cover, and the shielding groove is a shielding hole adapted to the curved corner.

3. The automobile split-type armrest base as claimed in claim 1, characterized in that: A rotating shaft seat is arranged on the armrest base, and a rotating shaft is arranged on the rotating shaft seat. The rotating shaft, the rotating shaft seat and the armrest base are an integral injection molded part.

4. The automobile split-type armrest base as claimed in claim 3, characterized in that: A protruding rotating shaft is provided on both sides of each rotating shaft seat, and the rotating shaft located at the front of the armrest base is arranged corresponding to the shielding groove.

5. The automobile split-type armrest base as claimed in claim 4, characterized in that: The edge of the armrest base is provided with an arc-shaped groove matched with the edge of the upper cover of the armrest, the curved surface of the arc-shaped groove is arranged upward, and the shielding groove is located at the front end of the arc-shaped groove.

6. An injection mold for a split-type automobile armrest base according to any one of claims 1 to 5, comprising an upper mold and a lower mold, characterized in that: The upper mold is provided with a shovel base, the lower mold is provided with a front mold tunnel slider matched with the lower inclined surface of the shovel base, and the front mold tunnel slider is provided with a molding hole for injection molding of a rotating shaft on one side.

7. The injection mold according to claim 6, characterized in that: The lower mold is provided with a rear mold main slider and an oil cylinder for driving the rear mold main slider to move. The rear mold main slider is provided with a movable rear mold small slider. The inner end of the rear mold small slider is provided with a protruding structure for shielding groove molding.

8. The injection mold according to claim 7, characterized in that: An oblique guide column is arranged at the lower part of the upper die, and an oblique guide hole movably matched with the oblique guide column is arranged on the small sliding block of the rear die.

9. The injection mold according to claim 8, characterized in that: The matching inclined surfaces of the rear mold small slider and the rear mold main slider are arranged to tilt upward from the inside to the outside.

10. The injection mold according to claim 9, characterized in that: A movable slider bevel is provided in the small slider of the rear mold, the inner end of the slider bevel extends from the inner side of the small slider of the rear mold, the inner end of the slider bevel is provided with a mold hole for injection molding of the other side shaft, a guide block is provided on the main slider of the rear mold, and a guide groove matching the guide block is provided on the slider bevel along the axial direction of the shaft.

Images