Double-color molding injection mold

Abstract

The utility model discloses a double-color molding injection mold, and aims to solve the problems that a LOGO is directly reflected on a mold core of a mold in the conventional mold design, the LOGO is not obvious in effect and needs to be painted for the second time due to single-color injection molding, and the overall production efficiency is greatly reduced. The mold comprises a rear mold and a front mold, mounting grooves are formed in the front side and the rear side of the upper surface of the rear mold, third sliding blocks are slidably connected to the inner bottoms of the mounting grooves, second shovel bases are vertically slidably connected to the left side and the right side of each mounting groove, and first sliding blocks are arranged between the second shovel bases and the third sliding blocks. The first shovel base drives the second shovel base to move downwards and locks the first sliding block and the third sliding block to form one color, then the reset block drives the reset rod and the first sliding block to move towards the second sliding block to form two colors, and therefore two-color products can be combined more firmly, the two-color effect of a product LOGO is more obvious, and the product quality is improved. And the overall production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of molding die technology, specifically relating to a two-color injection mold. Background Technology

[0002] Headphones are a pair of transducers that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers placed close to the ears. Headphones are generally detachable from the media player and connected via a plug. Headphone molding dies, also called molds, are molds made to scale according to the shape and structure of headphones, using pressing or casting methods to shape the material into the headphone form.

[0003] To meet consumers' demands for diverse appearances, feel, and other features in headphone products, brands typically engrave their logos on the product surface. This serves two purposes: promoting the brand and increasing product variety, which helps expand the market. Conventional mold designs directly incorporate the logo into the mold core. However, due to the single-color injection molding, the logo's effect is not prominent, requiring secondary coloring, which significantly reduces overall production efficiency. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a two-color injection mold. This mold aims to solve the problem that conventional mold designs directly display the logo on the mold core. Since it is a single-color injection molding process, the logo effect is not obvious and requires secondary coloring, which greatly reduces the overall production efficiency.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a two-color molding injection mold, which includes a rear mold and a front mold. The rear mold has mounting grooves on both the front and rear sides of its upper surface. A third slider is slidably connected to the bottom of the mounting groove. A second shovel base is vertically slidably connected to both the left and right sides of the mounting groove. A first slider is provided between the second shovel base and the third slider. A mold core is fixedly connected to the inner fixed part of the mounting groove. A mold core is fixedly connected to the mold core and forms a lower mold cavity. A push rod is fixedly connected to the upper surface of the third slider and penetrates the upper surface of the mold core. A reset rod is vertically slidably connected between the mold core and the second shovel base. A first shovel base and a reset block are fixedly connected to the lower surface of the front mold. The first shovel base is used to move the second shovel base downward and lock the first slider and the third slider to form one color. A second slider is installed at the bottom of the rear mold. The reset block is used to drive the reset rod and the first slider to move towards the second slider and form two colors.

[0008] Preferably, the upper surface of the mold core is provided with a flow channel, and the flow channel is communicated with the lower mold cavity.

[0009] Further, the number of the front mold is two, and the first shovel base and the reset block are fixedly connected to the lower surfaces of the two front molds respectively.

[0010] Still further, the lower surface of the rear mold is fixedly connected with a bottom plate, and two supporting pieces are installed between the bottom plate and the rear mold.

[0011] Still further, a third spring is installed between the third sliding block and the inner bottom of the mounting groove, and a second spring is installed between the second shovel base and the inner bottom of the mounting groove.

[0012] Still further, two third grooves are formed in the middle part of the inner bottom wall of the mounting groove, the bottom end of the third spring is located in the third groove, and a first groove is formed in the left and right sides of the inner bottom wall of the mounting groove, and the bottom end of the second spring is located in the first groove.

[0013] Still further, Z-shaped bending surfaces are formed between the left and right ends of the third sliding block and the end of the first sliding block close to the third sliding block, and an L-shaped bending surface is formed between the second shovel base and the first sliding block.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the utility model lie in that:

[0016] The utility model drives the second shovel base to move downwards and lock the first sliding block and the third sliding block through the first shovel base, at this time, the top rod extends from the upper surface of the mold core to form a color, at this time, the first color product forms a groove, then the front mold on the right side moves downwards to drive the reset block to move to the rear mold, at this time, the reset block drives the reset rod and the first sliding block to move to the second sliding block, at this time, the top rod moves downwards from the upper surface of the mold core to form a second color, at this time, the second color product fills the groove of the first color product, so that the double-color product is combined more firmly, and the product LOGO is more obvious due to the double-color effect, the product can be formed once, and the overall production efficiency is improved. DRAWINGS

[0017] Figure 1 It is the sectional structure schematic view of the front mold of the utility model installing the second shovel base.

[0018] Figure 2 It is the sectional structure schematic view of the front mold of the utility model installing the reset block.

[0019] Figure 3 It is the sectional structure schematic view of the rear mold of the utility model. Figure 2 It is the enlarged structure schematic view of A in the utility model.

[0020] Figure 4It is the internal three-dimensional structure schematic diagram of the utility model.

[0021] Figure 5 It is the pressing structure schematic diagram of the second shovel base of the utility model.

[0022] Figure 6 It is the pressing structure schematic diagram of the reset block of the utility model.

[0023] The signs in the drawing are: 1, rear mould; 2, front mould; 3, installation groove; 4, third sliding block; 5, second shovel base; 6, first sliding block; 7, mould core; 8, core; 9, lower mould cavity; 10, ejector rod; 11, reset rod; 12, first shovel base; 13, reset block; 14, second sliding block; 15, runner; 16, bottom plate; 17, supporting piece; 18, third spring; 19, second spring; 20, Z-shaped bending surface; 21, L-shaped bending surface. DETAILED DESCRIPTION

[0024] The specific embodiment is a kind of two-color injection mold, its structural schematic diagram as shown in Figures 1-6 The mould includes rear mould 1 and front mould 2, the front and rear sides of the upper surface of rear mould 1 are all provided with installation groove 3, the inner bottom of installation groove 3 is slidably connected with third sliding block 4, the left and right sides of installation groove 3 are all vertically slidably connected with second shovel base 5, first sliding block 6 is arranged between second shovel base 5 and third sliding block 4, the inner fixed part of installation groove 3 is fixedly connected with mould core 7, mould core 7 is fixedly connected with core 8 and is formed with lower mould cavity 9, core 8 or front mould 2 is engraved with LOGO, for showing after forming, the upper surface of third sliding block 4 is fixedly connected with ejector rod 10, ejector rod 10 penetrates the upper surface of core 8, reset rod 11 is vertically slidably connected between mould core 7 and second shovel base 5, the lower surface of front mould 2 is fixedly connected with first shovel base 12 and reset block 13, first shovel base 12 is used to make second shovel base 5 move downward and lock first sliding block 6 and third sliding block 4 to form one color, the inner bottom of rear mould 1 is installed with second sliding block 14, reset block 13 is used to drive reset rod 11 and first sliding block 6 to move to second sliding block 14 and form two colors.

[0025] As shown in Figures 2-3 In the embodiment, the upper surface of mould core 7 is provided with runner 15, runner 15 is communicated with lower mould cavity 9, the number of front mould 2 is two, first shovel base 12 and reset block 13 are fixedly connected on the lower surface of the two front mould 2 respectively.

[0026] Specifically, two rear mould 1 are the same, two front mould 2 are different, rear mould 1 is alternately formed with front mould to form products of different shapes by rotating 180 degrees, to realize two-color forming.

[0027] As shown in Figure 2 And Figure 5As shown in the drawings: in this embodiment, the lower surface of the rear mold 1 is fixedly connected with the bottom plate 16, and two supporting pieces 17 are installed between the bottom plate 16 and the rear mold 1.

[0028] As shown in the drawings: Figure 1 and Figure 4 As shown in the drawings: in this embodiment, the third spring 18 is installed between the third sliding block 4 and the inner bottom of the installation groove 3, and the second spring 19 is installed between the second shovel base 5 and the inner bottom of the installation groove 3.

[0029] The restoring force of the third spring 18 can drive the third sliding block 4 and the top rod 10 to reset upwards, so that the top rod 10 extends from the upper surface of the core 8, facilitating the molding of the first color.

[0030] As shown in the drawings: Figure 1 As shown in the drawings: in this embodiment, two third grooves are formed in the middle of the inner bottom wall of the installation groove 3, the bottom end of the third spring 18 is located in the third groove, and first grooves are formed on the left and right sides of the inner bottom wall of the installation groove 3, and the bottom end of the second spring 19 is located in the first groove.

[0031] This makes the installation of the third spring 18 and the second spring 19 more stable, and better enables the third sliding block 4 and the second shovel base 5 to slide up and down.

[0032] As shown in the drawings: Figure 2 and Figure 4 As shown in the drawings: in this embodiment, Z-shaped bending surfaces 20 are formed between the left and right ends of the third sliding block 4 and one end of the first sliding block 6 close to the third sliding block 4, and L-shaped bending surfaces 21 are formed between the second shovel base 5 and the first sliding block 6.

[0033] In this way, the first shovel base 12 can drive the second shovel base 5 to move downward and lock the first sliding block 6 and the third sliding block 4, ensuring the stability of the top rod 10.

[0034] Working principle: when in use, two rear molds 1 and two front molds 2 are arranged, the first shovel base 12 and the reset block 13 are fixedly connected to the lower surfaces of the two front molds 2 respectively, when the left front mold 2 moves downward, the first shovel base 12 moves to the rear mold 1, at this time, the first shovel base 12 drives the second shovel base 5 to move downward and lock the first sliding block 6 and the third sliding block 4, at this time, the top rod 10 extends from the upper surface of the core 8 to form a color, at this time, a groove is formed in the first color product, then it is rotated by 180 degrees, the right front mold 2 moves downward, the reset block 13 moves to the rear mold 1, at this time, the reset block 13 drives the reset rod 11 and the first sliding block 6 to move to the second sliding block 14, at this time, the top rod 10 moves downward from the upper surface of the core 8 and forms a second color, at this time, the second color product fills the groove of the first color product, so that the combination of the two-color product is more firm, and the product LOGO is more obvious due to the double-color effect, so that the product can be molded once, improving the overall production efficiency.

[0035] All the technical features in the embodiments can be freely combined according to actual needs.

[0036] The above embodiments are the preferred implementation of the present application, in addition to this, the present application can be implemented in other ways, without departing from the technical scheme concept, any obvious replacement is within the protection scope of the present application.

Claims

1. A two-color injection mold, the mold comprising a rear mold (1) and a front mold (2), characterized in that: The rear mold (1) has mounting grooves (3) on both the front and rear sides of its upper surface. A third slider (4) is slidably connected to the bottom of the mounting groove (3). A second shovel base (5) is vertically slidably connected to both the left and right sides of the mounting groove (3). A first slider (6) is provided between the second shovel base (5) and the third slider (4). A mold core (7) is fixedly connected to the inner fixed part of the mounting groove (3). A mold core (8) is fixedly connected to the mold core (7) and forms a lower mold cavity (9). A push rod (10) is fixedly connected to the upper surface of the third slider (4). The upper surface of the core (8) is penetrated. The core (7) and the second shovel base (5) are vertically slidably connected by a reset rod (11). The lower surface of the front mold (2) is fixedly connected with a first shovel base (12) and a reset block (13). The first shovel base (12) is used to make the second shovel base (5) move downward and lock the first slider (6) and the third slider (4) to form a single color. The inner bottom of the rear mold (1) is equipped with a second slider (14). The reset block (13) is used to drive the reset rod (11) and the first slider (6) to move towards the second slider (14) to form two colors.

2. The two-color molding injection mold according to claim 1, characterized in that, The upper surface of the mold core (7) is provided with a flow channel (15), which is connected to the lower mold cavity (9).

3. The two-color molding injection mold according to claim 1, characterized in that, The number of front molds (2) is two, and the first shovel base (12) and the reset block (13) are fixedly connected to the lower surfaces of the two front molds (2).

4. The two-color molding injection mold according to claim 3, characterized in that, A base plate (16) is fixedly connected to the lower surface of the rear mold (1), and two support members (17) are installed between the base plate (16) and the rear mold (1).

5. The two-color molding injection mold according to claim 4, characterized in that, A third spring (18) is installed between the third slider (4) and the inner bottom of the mounting groove (3), and a second spring (19) is installed between the second shovel base (5) and the inner bottom of the mounting groove (3).

6. The two-color molding injection mold according to claim 5, characterized in that, Two third grooves are provided in the middle of the bottom wall of the mounting groove (3). The bottom end of the third spring (18) is located inside the third groove. First grooves are provided on both the left and right sides of the bottom wall of the mounting groove (3). The bottom end of the second spring (19) is located inside the first groove.

7. The two-color molding injection mold according to claim 6, characterized in that, The left and right ends of the third slider (4) are provided with Z-shaped bending surfaces (20) between the first slider (6) and the end of the third slider (4) close to the third slider (4), and the second shovel base (5) is provided with an L-shaped bending surface (21) between it and the first slider (6).

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