Combined type mold core of earphone shell connecting ring buckle forming mold

Abstract

The utility model discloses a combined type mold core of an earphone shell connecting ring buckle forming mold, which comprises a first mold core and two second mold cores, the first mold core is arranged on an advancing path of a material pushing rod in a matching way, and the two second mold cores are sleeved on an inclined guide column and can slide along the guide column to be far away from or close to a mold cavity. By arranging the first mold core which can be in transmission connection with the material pushing rod and the second mold core which is in sliding connection with the guide column, the second mold core can be pushed to be far away from a retaining ring product through the movable mold core and the inclined guide column on the movable mold core in the mold opening process, and the first mold core and the retaining ring product on the first mold core can be pushed away from the movable mold through the push rod; the purpose of product demolding is achieved; the combined type mold core is simple in overall structure, convenient to produce and assemble and low in production cost, the movement path of each mold core is simple, mutual interference is avoided, and the combined type mold core can be matched with a conventional mold opening and closing control piece to achieve smooth demolding.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a combined core of a headphone shell connecting ring buckle molding mold. Background Art

[0002] The shell of the earphone is generally formed by plastic molds with different shapes and structural compositions. The inner wall positioning structure of some products is designed to be very compact, including many self-limiting or protruding or recessed positioning structures. The inner core extraction action after molding is complex and difficult to coordinate with the normal mold opening process, resulting in difficulty in demolding the product or damage to the structural parts on the mold. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a combined core for connecting the earphone shell to the buckle forming mold, which can push the second core away from the buckle product through the movable mold core and the inclined guide column thereon during the mold opening process, and can push the first core and the buckle product thereon away from the movable mold through the push rod, thereby achieving the purpose of demolding the product. The overall structure is simple, easy to produce and assemble, and the production cost is low.

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

[0005] A combined core of a ring buckle forming mold for connecting an earphone shell, the forming mold comprising a movable mold, a movable mold core and a plurality of push rods are arranged on the movable mold; a forming block is arranged on the movable mold beside the movable mold core, one end of the forming block extends to the movable mold core and a cavity is formed on the movable mold core; the combined core is arranged in the cavity and a cavity adapted to the ring buckle product is formed between it and the forming block, comprising a first core and two second cores, the outer contour of one side of the first core extends to the side of the forming block and is adapted to the arc-shaped inner contour of the middle section of the ring buckle product, the first core is matched with the forward movement of the plurality of push rods The outer contours of one side of the two second cores extend to the side of the forming block and are respectively matched with the arc-shaped inner contour of one end of the buckle product. Each of the second cores is sleeved on an inclined guide column and can slide along it to move away from or approach the forming block under the push of external force. The two guide columns are relatively arranged on the movable mold core; when opening the mold, each of the second cores can slide along one of the guide columns to move away from the forming block, and the push rod can push the first core to drive the buckle product to leave the cavity. When closing the mold, each of the second cores can slide along one of the guide columns to move close to the forming block.

[0006] As a further elaboration of the above technical solution:

[0007] In the above technical solution, a positioning groove, a positioning boss and a plurality of push holes are provided on the movable mold core, one end of the positioning groove is adapted to the forming block, the positioning boss is provided at the other end of the positioning groove and a limiting column is provided thereon, one side of the limiting column is provided with a first positioning hole groove capable of clamping the first core, and the other side is provided with two second positioning hole grooves capable of respectively clamping one of the guide columns, a plurality of the push holes pass through the movable mold core and are connected with the first positioning hole groove, and a plurality of the push holes pass through the movable mold core and are connected with the cavity.

[0008] In the above technical solution, the first core is a cylindrical structure, one side wall of which is arc-shaped, and the contour edges of the upper and lower ends are provided with grooves adapted to the buckle product, and the lower end of the first core is also provided with a first positioning column adapted to the first positioning hole groove next to the groove, and the first positioning column is provided with a first hole adapted to the push rod, and the first hole is a step hole or a blind hole, and the push rod can extend into the first hole and drive the first core to move synchronously with it.

[0009] In the above technical solution, each of the second cores is a columnar structure, one side wall of which is arc-shaped, and a guide hole groove which is inclined and can accommodate a guide column is provided between the upper and lower ends.

[0010] In the above technical solution, a plurality of limit springs are also provided on the movable mold core, each of the limit springs extends along the moving direction of the second core and is slidably installed on the side wall close to the cavity, and each of the second cores is provided with a mounting hole groove adapted to the limit spring.

[0011] Compared with the prior art, the beneficial effects of the utility model are: by providing a first core that can be transmission-connected to the push rod and a second core that is slidably connected to the guide column, the second core can be pushed away from the buckle product by the movable mold core and the inclined guide column thereon during the mold opening process, and the first core and the buckle product thereon can be pushed away from the movable mold by the push rod, so as to achieve the purpose of demolding the product; the overall structure of the combined core is simple, easy to produce and assemble, and has a low production cost, and the moving path of each core is simple, and will not interfere with each other, and can be matched with conventional mold opening and closing control components to achieve smooth demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the ring buckle product in this embodiment;

[0013] Figure 2 It is a schematic diagram of the structure of this embodiment on the movable mold when the mold is closed;

[0014] Figure 3 It is a structural schematic diagram of this embodiment;

[0015] Figure 4 is a schematic diagram of the decomposed structure of this embodiment;

[0016] Figure 5 Schematic diagram of the structure of the movable mold core in this embodiment;

[0017] Figure 6 is a schematic structural diagram of the first core in this embodiment;

[0018] Figure 7 Schematic diagram of the structure of the second core in this embodiment

[0019] In the figure: 10, movable mold core; 11, positioning groove; 12, positioning boss; 13, push hole; 14, limit column; 15, first positioning hole groove; 16, second positioning hole groove; 20, push rod; 30, forming block; 40, first core; 41, clamping groove; 42, first positioning column; 43, first hole; 50, second core; 51, guide hole groove; 52, mounting hole groove; 60, guide column; 70, limit spring; 100, buckle product; a, protrusion; b, groove. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] For ease of understanding, Figure 1 The schematic diagram of the structure of the ring buckle product 100 in this embodiment is shown. It can be seen that the overall structure is annular, but the outer contours of the middle and both end portions are discontinuous and different, and each portion is also provided with a number of protrusions a and grooves b of different shapes and sizes. During molding, multiple cores need to be provided on the inner side of the ring buckle product 100. All the cores must be withdrawn during or after mold opening, and demolding is very difficult.

[0023] like Figure 2-4As shown, a combined core of a headphone shell connected to a buckle forming mold, the forming mold includes a movable mold, on which a movable mold core 10 and a plurality of push rods 20 are provided; a forming block 30 is provided on the movable mold beside the movable mold core 10, one end of the forming block 30 extends to the movable mold core 10 and forms a cavity on the movable mold core 10; the combined core is arranged in the cavity and a cavity adapted to the buckle product 100 is formed between it and the forming block 30, including a first core 40 and two second cores 50, the outer contour of one side of the first core 40 extends to the side of the forming block 30 and is adapted to the arc-shaped inner contour of the middle section of the buckle product 100, and the first core 40 matches the plurality of push rods 20. The outer contours of one side of the two second cores 50 extend to the side of the forming block 30 and are respectively adapted to the arc-shaped inner contours of one end of the buckle product 100. Each second core 50 is sleeved on an inclined guide column 60 and can slide along it to move away from or approach the forming block 30 under the push of external force. The two guide columns 60 are relatively on the movable mold core 10; when the mold is opened, each second core 50 can slide along a guide column 60 to move away from the forming block 30, and the push rod 20 can push the first core 40 to drive the buckle product 100 to leave the cavity. When the mold is closed, each second core 50 can slide along a guide column 60 to move close to the forming block 30.

[0024] The working process of the utility model is:

[0025] When closing the mold, the movable mold moves toward the fixed mold, and the inclined guide pillars 60 on the movable mold core 10 guide the two second cores 50 to move toward the molding block 30. The first core 40, the second core 50, the molding block 30 and the molding structure on the fixed mold together enclose a closed cavity. After completion, the glue is injected into the cavity through the flow channel on the fixed mold. When opening the mold, the movable mold drives the movable mold core 10 to leave the fixed mold, and the movable mold core 10 drives the guide pillars 60 to move synchronously. The two guide pillars 60 push the two second cores 50 to move towards each other and away from the buckle product 100. After the mold opening is completed, the driving device on the movable mold pushes the push rod 20 through the movable mold core 10 to push the first core 40 together with the buckle product 100 away from the movable mold core 10. Finally, the buckle product 100 can be removed from the first core 40 manually or by a robot. After completion, the movable mold driving device drives the ejector rod 20 to pull the first core 40 back to its original position, or presses the first core 40 into the movable mold core 10 during the next round of mold closing.

[0026] The utility model provides a first core 40 that can be transmission-connected to the push rod 20 and a second core 50 that is slidably connected to the guide column 60. During the mold opening process, the second core 50 can be pushed away from the buckle product 100 by the movable mold core 10 and the inclined guide column 60 thereon, and the first core 40 and the buckle product 100 thereon can be pushed away from the movable mold by the push rod 20, so as to realize the purpose of demolding the product. The overall structure of the combined core is simple, which is convenient for production and assembly, and has a low production cost. The moving path of each core is simple and will not interfere with each other. It can be matched with conventional mold opening and closing control components to realize smooth demolding.

[0027] Further, such as Figure 5 As shown, a positioning groove 11, a positioning boss 12 and a plurality of push holes 13 are provided on the movable mold core 10. One end of the positioning groove 11 is adapted to the forming block 30. The positioning boss 12 is provided at the other end of the positioning groove 11 and a limiting column 14 is provided thereon. One side of the limiting column 14 is provided with a first positioning hole groove 15 capable of fixing a first core 40, and the other side is provided with two second positioning hole grooves 16 capable of fixing a guide column 60 respectively. A plurality of push holes 13 pass through the movable mold core 10 and are connected with the first positioning hole groove 15, and a plurality of push holes 13 pass through the movable mold core 10 and are connected with the cavity.

[0028] Further, such as Figure 6 As shown, the first core 40 is a columnar structure, one side wall of which is arc-shaped, and the contour edges of the upper and lower ends are provided with a slot 41 adapted to the buckle product 100, and the lower end of the first core 40 is also provided with a first positioning column 42 adapted to the first positioning hole groove 15 next to the slot 41, and the first positioning column 42 is provided with a first hole 43 adapted to the push rod, and the first hole 43 is a step hole or a blind hole, and a push rod 20 can extend into a first hole 43 and drive the first core 40 to move synchronously with it.

[0029] Further, such as Figure 7 As shown, each second core 50 is a columnar structure, one side wall of which is arc-shaped, and an inclined guide hole groove 51 capable of accommodating a guide column 60 is provided between the upper and lower ends.

[0030] Furthermore, a plurality of limit springs 70 are provided on the movable mold core, each of which extends along the moving direction of a second core 50 and is slidably mounted on the side wall thereof close to the cavity, and each second core 50 is provided with a mounting hole groove 52 adapted to the limit spring 70 .

[0031] It can be understood that when the mold is closed, the movable mold (movable mold core 10) drives the guide column 60 to push the second core 50 to return to the cavity, and the limit spring 70 can limit and slow down the moving speed of the second core 50 to prevent the second core 50 from moving too fast and damaging the outer wall contour of the molding block 30.

[0032] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A combined core of a headphone housing connecting ring buckle forming mold, the forming mold comprising a movable mold, the movable mold is provided with a movable mold core and a plurality of ejector rods; characterized in that: The movable mold is provided with a molding block beside the movable mold core, one end of the molding block extends to the movable mold core and forms a cavity on the movable mold core; the combined core is arranged in the cavity and a cavity adapted to the buckle product is formed between it and the molding block, including a first core and two second cores, the outer contour of one side of the first core extends to the side of the molding block and is adapted to the arc-shaped inner contour of the middle section of the buckle product, the first core is matched and arranged on the forward path of several push rods and can leave the movable mold core under the push of the push rods, and the two second cores are arranged in the cavity. The outer contours of one side of the core extend to the side of the forming block and are respectively matched with the arc-shaped inner contours of one end of the ring buckle product. Each of the second cores is sleeved on an inclined guide column and can slide along it to move away from or approach the forming block under the push of external force. The two guide columns are relatively arranged on the movable mold core; when the mold is opened, each of the second cores can slide along a guide column to move away from the forming block, and the push rod can push the first core to drive the ring buckle product to leave the cavity. When the mold is closed, each of the second cores can slide along a guide column to move close to the forming block.

2. The combined core of the earphone housing connecting ring buckle forming mold according to claim 1, characterized in that: The movable mold core is provided with a positioning groove, a positioning boss and a plurality of push holes, one end of the positioning groove is adapted to the forming block, the positioning boss is arranged at the other end of the positioning groove and a limiting column is arranged thereon, one side of the limiting column is provided with a first positioning hole groove which can fix the first core, and the other side is provided with two second positioning hole grooves which can respectively fix one of the guide columns, a plurality of the push holes pass through the movable mold core and are connected with the first positioning hole groove, and a plurality of the push holes pass through the movable mold core and are connected with the cavity.

3. The combined core of the earphone housing connecting ring buckle forming mold according to claim 2, characterized in that: The first core is a cylindrical structure with one side wall in an arc shape. The contour edges of the upper and lower ends are provided with slots adapted to the buckle product. The lower end of the first core is also provided with a first positioning column adapted to the first positioning hole slot beside the slot. The first positioning column is provided with a first hole adapted to the push rod. The first hole is a stepped hole or a blind hole. The push rod can extend into the first hole and drive the first core to move synchronously with it.

4. The combined core of the earphone housing connecting ring buckle forming mold according to claim 3, characterized in that: Each of the second cores is a columnar structure, one side wall of which is arc-shaped, and a guide hole groove which is inclined and can accommodate a guide column is provided between the upper and lower ends.

5. The combined core of the earphone housing connecting ring buckle forming mold according to claim 4, characterized in that: The movable mold core is also provided with a plurality of limit springs, each of which extends along the moving direction of the second core and is slidably mounted on the side wall close to the cavity, and each of the second cores is provided with a mounting hole groove adapted to the limit spring.

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