A front and back mold inner slider two-color mold structure

Abstract

The utility model discloses a front and rear mould inner sliding block two -color mould structure relates to two -color mould's technical field, it includes a front mould, two front moulds and two rear moulds, adopts the two -color mould of front and rear mould inner sliding block structure, through the rotation switching of two rear moulds, can complete twice injection on the same injection molding machine continuously, has reduced the transfer time of product between different equipment or mould, has realized the efficient production of two -color product, moreover, the telescopic of slider drive assembly automatic drive slider with the opening and closing mould action of mould, need not additional operation step, has further improved the automation degree and efficiency of production.

Description

Technical Field

[0001] This utility model relates to the technical field of two-color molds, specifically a two-color mold structure with sliding blocks inside the front and rear molds. Background Technology

[0002] Two-color molding, as an advanced molding technology, plays a vital role in modern manufacturing. It enables the injection molding of two different colors or materials in a single mold, thereby producing plastic products with two-color or multi-color appearance and functions. This technology is widely used in many fields such as electronics, automobiles, and daily necessities, providing strong support for diversified product design and functional enhancement. For example, in the manufacturing of electronic device casings, two-color molding can achieve different color combinations, satisfying both aesthetic requirements and giving specific functional characteristics to different areas.

[0003] In existing two-color mold technology, core pulling is a key process. The purpose of core pulling is to remove the slider in the mold used to form the internal structure or special shape of the product from the product after injection molding, so as to facilitate demolding. Currently, many two-color molds use hydraulic cylinders to drive the slider for core pulling.

[0004] The working principle of hydraulic cylinder core pulling is to use the hydraulic system to provide power to drive the piston rod of the hydraulic cylinder to move, which in turn drives the slider connected to the piston rod to move, so as to realize the extraction and insertion of the core. Although this core pulling method can meet the production needs to a certain extent, it also has many significant drawbacks.

[0005] Using hydraulic cylinders for core pulling makes the overall structure of the mold extremely complex. The hydraulic cylinder itself needs to occupy a certain space and needs to be equipped with corresponding hydraulic pipelines, control valves and other auxiliary components. The installation and layout of these components need to be precisely designed to ensure that the hydraulic cylinder can accurately drive the slider to perform the core pulling action.

[0006] Furthermore, the procurement cost of hydraulic cylinders and related hydraulic components is relatively high, especially for high-precision, high-performance hydraulic cylinders, which are even more expensive. Secondly, due to the complex mold structure, the processing difficulty during the manufacturing process increases, requiring more processing steps and high-precision processing equipment, which also increases the manufacturing cost. At the same time, the complex mold structure also requires more professional technicians for design and debugging, which also increases the labor cost accordingly.

[0007] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0008] The existing two-color molds mentioned above use hydraulic cylinders to drive the slider for core pulling, but using hydraulic cylinders to pull the core makes the mold very complex, increasing the mold cost and production efficiency.

[0009] The technical solution adopted by this utility model to solve its technical problem is:

[0010] A dual-color mold structure with in-mold sliders includes a first injection mold, a second injection mold, and two rear molds. The two rear molds are arranged side by side and are in a state where the other rear mold is rotated 180 degrees along a vertical line. Each rear mold has a rear mold protrusion, and a rear mold horizontal slider module is slidably connected inside the rear mold protrusion. The side wall of the rear mold protrusion has a first protrusion hole for the end of the rear mold horizontal slider module to protrude. The rear mold also has a rear mold slider drive assembly that can drive the rear mold horizontal slider module to move horizontally.

[0011] The pre-injection mold is provided with a pre-injection mold cavity that can cooperate with the rear mold protrusion. A pre-injection mold horizontal slider module is slidably connected in the pre-injection mold. The side wall of the pre-injection mold cavity is provided with a second protrusion hole for the end of the pre-injection mold horizontal slider module to protrude. The pre-injection mold is also provided with a pre-injection mold slider drive assembly that can drive the pre-injection mold horizontal slider module to move horizontally.

[0012] The two-shot front mold is provided with a two-shot front mold cavity that can cooperate with the rear mold protrusion. A two-shot front mold horizontal slider module is slidably connected inside the two-shot front mold. The side wall of the two-shot front mold cavity is provided with a third protrusion hole for the end of the two-shot front mold horizontal slider module to protrude. The two-shot front mold is also provided with a two-shot front mold slider drive assembly that can drive the two-shot front mold horizontal slider module to move horizontally.

[0013] As described above, in a dual-color mold structure with front and rear in-mold sliders, the rear mold horizontal slider module includes multiple rear mold horizontal sliders. The rear mold slider driving assembly includes a rear mold A plate, a rear mold vertical slider, and a rear mold inclined guide component. The rear mold A plate is located below the rear mold and can move closer to or further away from the rear mold. The rear mold vertical slider corresponds one-to-one with the rear mold horizontal slider. The rear mold vertical slider is fixed on the rear mold A plate. The rear mold has a rear mold sliding hole that is slidably connected to the rear mold vertical slider. The rear mold inclined guide component is located between the rear mold vertical slider and the rear mold horizontal slider. The rear mold vertical slider can drive the rear mold horizontal slider to move horizontally through the rear mold inclined guide component.

[0014] As described above, in a dual-color mold structure with front and rear in-mold sliders, the rear mold inclined guide component includes a first rear mold inclined surface, a second rear mold inclined surface, a rear mold sliding protrusion, and a rear mold sliding groove. The first rear mold inclined surface is located on one side of the rear mold vertical slider, the rear mold sliding protrusion is located on the first rear mold inclined surface, the second rear mold inclined surface is located at the end of the rear mold horizontal slider, and the rear mold sliding groove is recessed on the end of the rear mold horizontal slider having the second rear mold inclined surface. The first rear mold inclined surface and the second rear mold inclined surface are correspondingly arranged, and the rear mold sliding protrusion is embedded in the rear mold sliding groove.

[0015] As described above, in a dual-color mold structure with in-mold and out-of-mold sliders, the first-shot mold horizontal slider module includes multiple first-shot mold horizontal sliders. The first-shot mold slider driving assembly includes a first-shot mold A plate, a first-shot mold vertical slider, and a first-shot mold inclined guide member. The first-shot mold A plate is located below the first-shot mold and can move closer to or further away from the first-shot mold. The first-shot mold vertical slider corresponds one-to-one with the first-shot mold horizontal slider. The first-shot mold vertical slider is fixed on the first-shot mold A plate. The first-shot mold has a first-shot mold sliding hole that is slidably connected to the first-shot mold vertical slider. The first-shot mold inclined guide member is located between the first-shot mold vertical slider and the first-shot mold horizontal slider. The first-shot mold vertical slider can drive the first-shot mold horizontal slider to move horizontally through the first-shot mold inclined guide member.

[0016] As described above, in a dual-color mold structure with front and rear in-mold sliders, the first pre-shot mold inclined guide component includes a first pre-shot mold inclined surface, a second pre-shot mold inclined surface, a first pre-shot mold sliding protrusion, and a first pre-shot mold sliding groove. The first pre-shot mold inclined surface is located on one side of the vertical slider of the first pre-shot mold. The first pre-shot mold sliding protrusion is located on the first pre-shot mold inclined surface. The second pre-shot mold inclined surface is located at the end of the horizontal slider of the first pre-shot mold. The first pre-shot mold sliding groove is recessed on the end of the horizontal slider of the first pre-shot mold with the second pre-shot mold inclined surface. The first pre-shot mold inclined surface and the second pre-shot mold inclined surface are correspondingly arranged. The first pre-shot mold sliding protrusion is embedded in the first pre-shot mold sliding groove.

[0017] As described above, in a dual-color mold structure with in-mold sliders, the two-shot front mold horizontal slider module includes multiple two-shot front mold horizontal sliders. The two-shot front mold slider driving assembly includes a two-shot front mold A plate, a two-shot front mold vertical slider, and a two-shot front mold inclined guide component. The two-shot front mold A plate is located below the two-shot front mold and can move closer to or further away from the two-shot front mold. The two-shot front mold vertical slider corresponds one-to-one with the two-shot front mold horizontal sliders. The two-shot front mold vertical slider is fixed on the two-shot front mold A plate. The two-shot front mold has a two-shot front mold sliding hole that is slidably connected to the two-shot front mold vertical slider. The two-shot front mold inclined guide component is located between the two-shot front mold vertical slider and the two-shot front mold horizontal slider. The two-shot front mold vertical slider can drive the two-shot front mold horizontal slider to move horizontally through the two-shot front mold inclined guide component.

[0018] As described above, in a dual-color mold structure with front and rear in-mold sliders, the two-shot front mold inclined guide component includes a first two-shot front mold inclined surface, a second two-shot front mold inclined surface, a two-shot front mold sliding protrusion, and a two-shot front mold sliding groove. The first two-shot front mold inclined surface is located on one side of the vertical slider of the two-shot front mold. The two-shot front mold sliding protrusion is located on the first two-shot front mold inclined surface. The second two-shot front mold inclined surface is located at the end of the horizontal slider of the two-shot front mold. The two-shot front mold sliding groove is recessed on the end of the horizontal slider of the two-shot front mold with the second two-shot front mold inclined surface. The first two two-shot front mold inclined surface and the second two two-shot front mold inclined surface are correspondingly arranged. The two-shot front mold sliding protrusion is embedded in the two-shot front mold sliding groove.

[0019] As described above, in a dual-color mold structure with front and rear in-mold sliders, the front mold horizontal slider module includes multiple front mold horizontal sliders, each front mold horizontal slider includes multiple front mold irregular hole forming sliders, and the side wall of the front mold cavity is also provided with a volume button front forming hole. The rear mold horizontal slider module includes multiple rear mold horizontal sliders, each rear mold irregular hole forming slider and a volume button back forming slider.

[0020] As described above, in a dual-color mold structure with in-mold sliders, the two-shot front mold horizontal slider module includes multiple two-shot front mold horizontal sliders. The two-shot front mold horizontal sliders include multiple two-shot front mold irregular hole forming sliders and volume button cutting A sliders. The two-shot front mold irregular hole forming sliders have the same structure as the one-shot front mold irregular hole forming sliders. The volume button cutting A sliders can cooperate with the volume button back forming sliders to cut off the volume buttons.

[0021] As described above, in a dual-color mold structure with front and rear in-mold sliders, the horizontal slider of the front mold further includes a slider for forming an elongated hole in the front mold.

[0022] The beneficial effects of this utility model are as follows:

[0023] This utility model relates to a two-color mold structure with in-mold sliders, and relates to the technical field of two-color molds. It includes a first-shot front mold, a second-shot front mold, and two rear molds. The two-color mold with in-mold slider structure can continuously complete two injections on the same injection molding machine by rotating and switching the two rear molds. This reduces the transfer time of products between different equipment or molds, and realizes the efficient production of two-color products. Moreover, the slider drive component automatically drives the extension and retraction of the slider with the opening and closing of the mold, without the need for additional operation steps, further improving the automation and efficiency of production.

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of a two-color mold structure with front and rear in-mold sliders according to the present invention;

[0026] Figure 2 This is one of the exploded schematic diagrams of a two-color mold structure with front and rear in-mold sliders according to this utility model;

[0027] Figure 3 This is the second exploded view of a two-color mold structure with front and rear in-mold sliders according to this utility model;

[0028] Figure 4 This is the third exploded view of a two-color mold structure with front and rear in-mold sliders according to this utility model;

[0029] Figure 5 This is the fourth exploded view of a two-color mold structure with front and rear in-mold sliders according to this utility model;

[0030] Figure 6 This is the fifth exploded view of a two-color mold structure with front and rear in-mold sliders according to this utility model;

[0031] Figure 7 This is the sixth exploded view of a two-color mold structure with front and rear in-mold sliders according to this utility model;

[0032] Figure 8 This is the seventh exploded view of a two-color mold structure with front and rear in-mold sliders according to this utility model;

[0033] Figure 9 This is a structural schematic diagram of the two-shot front mold horizontal slider module, the two-shot front mold slider drive assembly, the rear mold horizontal slider module, and the rear mold slider drive assembly of this utility model;

[0034] Figure 10 This is a structural schematic diagram of the front mold horizontal slider module, the front mold slider drive assembly, the rear mold horizontal slider module, and the rear mold slider drive assembly of this utility model. Detailed Implementation

[0035] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0036] like Figures 1 to 10As shown, this embodiment of a dual-color mold structure with in-mold sliders includes a first injection mold 1, a second injection mold 2, and two rear molds 3. The two rear molds 3 are arranged side by side and are in a state where the other rear mold 3 is rotated 180 degrees along a vertical line. The rear mold 3 is provided with a rear mold protrusion 31. A rear mold horizontal slider module 32 is slidably connected in the rear mold protrusion 31. The side wall of the rear mold protrusion 31 is provided with a first protrusion hole 311 for the end of the rear mold horizontal slider module 32 to protrude. The rear mold 3 is also provided with a rear mold slider driving assembly 33 that can drive the rear mold horizontal slider module 32 to move horizontally.

[0037] The pre-injection mold 1 is provided with a pre-injection mold cavity 11 that can cooperate with the rear mold protrusion 31. A pre-injection mold horizontal slider module 12 is slidably connected in the pre-injection mold 1. The side wall of the pre-injection mold cavity 11 is provided with a second protrusion hole 111 for the end of the pre-injection mold horizontal slider module 12 to protrude. The pre-injection mold 1 is also provided with a pre-injection mold slider drive assembly 13 that can drive the pre-injection mold horizontal slider module 12 to move horizontally.

[0038] The two-shot front mold 2 is provided with a two-shot front mold cavity 21 that can cooperate with the rear mold protrusion 31. A two-shot front mold horizontal slider module 22 is slidably connected inside the two-shot front mold 2. The side wall of the two-shot front mold cavity 21 is provided with a third protrusion hole 211 for the end of the two-shot front mold horizontal slider module 22 to protrude. The two-shot front mold 2 is also provided with a two-shot front mold slider drive assembly 23 that can drive the two-shot front mold horizontal slider module 22 to move horizontally.

[0039] When the mold is opened, the first injection front mold slider drive assembly 13 can move away from the corresponding rear mold 3 along with the movement of the first injection front mold 1, and drive the first injection front mold horizontal slider module 12 to retract into the second protrusion hole 111.

[0040] The two-shot front mold slider drive assembly 23 can move away from the corresponding rear mold 3 as the two-shot front mold 2 moves, and drive the two-shot front mold horizontal slider module 22 to retract into the third protrusion hole 211.

[0041] The rear mold slider drive assembly 33 can move away from the corresponding front mold as the rear mold 3 moves, and drive the rear mold horizontal slider assembly 32 to retract into the first protrusion hole 311.

[0042] Preferably, the front mold 1 and the corresponding rear mold 3 are closed, and the front mold cavity 11 and the rear mold protrusion 31 cooperate to form a complete injection molding space. The front mold slider drive assembly 13 drives the front mold horizontal slider module 12 to extend from the second extension hole 111, and the rear mold slider drive assembly 33 drives the rear mold horizontal slider module 32 to extend from the first extension hole 311. Together they participate in the construction of the injection molding space, and then plastic melt is injected into the space to complete the first injection molding.

[0043] When the mold is opened, the front mold 1 moves away from the corresponding rear mold 3. The front mold slider drive assembly 13 moves with the front mold 1, driving the front mold horizontal slider module 12 to retract into the second protrusion hole 111. The rear mold slider drive assembly 33 moves with the rear mold 3, driving the rear mold horizontal slider module 32 to retract into the first protrusion hole 311, so that the molded product can be smoothly ejected from the mold.

[0044] Two rear molds 3 are arranged side by side and rotated 180 degrees along a vertical line. The first injection front mold 1 and the second injection front mold 2 are set on the same rotating mechanism (not shown in the figure). Driven by the rotating mechanism, the second injection front mold 2 rotates to the rear mold 3 with the first injection product, so that the second injection front mold 2 performs a second injection operation on the first injection product. Alternatively, the two rear molds 3 are set on the same rotating mechanism (not shown in the figure), and driven by the rotating mechanism, the rear mold 3 with the first injection product rotates to the bottom of the second injection front mold 2 to perform a second injection operation.

[0045] Preferably, the two-shot front mold 2 and the corresponding rear mold 3 (at this time, the rear mold has the first-shot product) are closed. The two-shot front mold cavity 21 and the rear mold protrusion 31 cooperate to form a two-shot molding space. The two-shot front mold slider drive assembly 23 drives the two-shot front mold horizontal slider module 22 to extend from the third extension hole 211. The rear mold slider drive assembly 33 drives the rear mold horizontal slider module 32 to extend from the first extension hole 311. The two-shot molding space is constructed on the basis of the first-shot product. Another plastic melt is injected into the space to complete the second injection, so that the two-shot plastic and the first-shot plastic are combined to form a two-color product.

[0046] When the mold is opened, the front mold 2 moves away from the corresponding rear mold 3. The front mold slider drive assembly 23 moves with the front mold 2, causing the front mold horizontal slider module 22 to retract into the third protrusion hole 211. The rear mold slider drive assembly 33 moves with the rear mold 3, causing the rear mold horizontal slider module 32 to retract into the first protrusion hole 311, so that the two-color product can be smoothly ejected from the mold.

[0047] Preferably, by setting horizontal slider modules in the front and rear molds, a complex molding space can be formed within the mold. These slider modules can extend or retract at different injection stages, thereby forming various complex shapes, undercuts, side holes, and other structures on the product (such as earphone earpieces), meeting the diverse design requirements of the product and improving the molding capability of the mold.

[0048] The two-color mold with an in-mold slider structure allows for two consecutive injection molding processes on the same injection molding machine by rotating and switching the two rear molds. This reduces the transfer time between different equipment or molds and enables efficient production of two-color products. Furthermore, the slider drive assembly automatically drives the slider to extend and retract with the mold opening and closing action, eliminating the need for additional operation steps and further improving the automation and efficiency of production.

[0049] During the injection molding process, the precise movement of the slider module ensures the accuracy of the molding space, thereby ensuring the dimensional and shape accuracy of the product. At the same time, the slider can retract in time when the mold opens, avoiding scratches or damage to the product, which helps to improve the appearance quality and yield of the product.

[0050] like Figures 1 to 10 As shown, the rear mold horizontal slider module 32 of this embodiment includes multiple rear mold horizontal sliders. The rear mold slider driving assembly 33 includes a rear mold A plate 34, a rear mold vertical slider 35, and a rear mold inclined guide member 36. The rear mold A plate 34 is located below the rear mold 3 and can move closer to or further away from the rear mold 3. The rear mold vertical slider 35 corresponds one-to-one with the rear mold horizontal sliders. The rear mold vertical slider 35 is fixed on the rear mold A plate 34. The rear mold 3 is provided with a rear mold sliding hole 37 that is slidably connected to the rear mold vertical slider 35. The rear mold inclined guide member 36 is located between the rear mold vertical slider 35 and the rear mold horizontal slider. The rear mold vertical slider 35 can drive the rear mold horizontal slider to move horizontally through the rear mold inclined guide member 36.

[0051] Preferably, when the mold is closed, the rear mold A plate 34 begins to move upward relative to the rear mold 3. Since the rear mold vertical slider 35 is fixed on the rear mold A plate 34, the rear mold vertical slider 35 will move upward together with the rear mold A plate 34.

[0052] During the upward movement of the rear mold vertical slider 35, it interacts with the rear mold horizontal slider through the rear mold inclined guide member 36. The inclined structure of the rear mold inclined guide member 36 transforms the vertical movement of the rear mold vertical slider 35 into the horizontal movement of the rear mold horizontal slider. Specifically, the upward thrust of the rear mold vertical slider 35 is transmitted to the rear mold horizontal slider through the inclined surface of the rear mold inclined guide member 36, pushing the rear mold horizontal slider to extend out from the first extension hole 311 and participate in the construction of the injection molding space.

[0053] Preferably, during mold opening, the rear mold A plate 34 moves downward away from the rear mold 3, and the rear mold vertical slider 35 moves downward together with the rear mold A plate 34. When the rear mold vertical slider 35 moves downward, the rear mold horizontal slider is subjected to a retraction force through the inclined structure of the rear mold inclined guide member 36, thereby driving the rear mold horizontal slider to retract into the first protruding hole 311, creating conditions for the smooth demolding of the product.

[0054] Preferably, the rear mold A plate 34 is set below the rear mold 3, and the horizontal movement of the rear mold horizontal slider is realized by the rear mold vertical slider 35 and the rear mold inclined guide component 36. This design utilizes the space below the rear mold in the vertical direction and avoids occupying too much extra space in the horizontal direction, making the overall mold structure more compact and suitable for installation and use in limited production sites.

[0055] Preferably, the rear mold slider drive assembly 33 integrates the rear mold A plate 34, the rear mold vertical slider 35 and the rear mold inclined guide component 36 together to form a relatively independent drive system, which can simultaneously control the movement of multiple rear mold horizontal sliders, thereby improving the integration and integrity of the mold structure.

[0056] The inclined structure of the rear mold inclined guide component 36 can smoothly convert the vertical movement of the rear mold vertical slider 35 into the horizontal movement of the rear mold horizontal slider, avoiding sudden changes and impacts during the movement process, making the extension and retraction of the rear mold horizontal slider smoother, which is conducive to improving the precision of mold forming and product quality.

[0057] The rear mold vertical slider 35 is slidably connected to the rear mold sliding hole 37, providing precise guidance for the movement of the rear mold vertical slider 35 and ensuring the positional accuracy of the rear mold vertical slider 35 during its up-and-down movement. The design of the rear mold inclined guide component 36 also enables the horizontal movement of the rear mold horizontal slider to be carried out accurately according to the design requirements, ensuring the positional accuracy of each part of the mold during the molding process.

[0058] The components of the rear mold slider drive assembly 33 are relatively independent and have a clear structure. When a fault occurs or maintenance is required, it is convenient to inspect and repair the rear mold A plate 34, the rear mold vertical slider 35 and the rear mold inclined guide component 36 separately, which reduces the difficulty and cost of maintenance.

[0059] If a component such as the rear mold horizontal slider or the rear mold inclined guide component 36 is damaged, it can be easily replaced due to its modular design, reducing mold maintenance time and improving production efficiency.

[0060] like Figures 1 to 10As shown, the rear mold inclined guide component 36 of this embodiment includes a first rear mold inclined surface 361, a second rear mold inclined surface 362, a rear mold sliding protrusion 363, and a rear mold sliding groove 364. The first rear mold inclined surface 361 is disposed on one side of the rear mold vertical slider 35, the rear mold sliding protrusion 363 is disposed on the first rear mold inclined surface 361, the second rear mold inclined surface 362 is disposed at the end of the rear mold horizontal slider, and the rear mold sliding groove 364 is recessed on the end of the rear mold horizontal slider having the second rear mold inclined surface 362. The first rear mold inclined surface 361 and the second rear mold inclined surface 362 are correspondingly disposed, and the rear mold sliding protrusion 363 is embedded in the rear mold sliding groove 364.

[0061] When the mold is closed, the rear mold A plate 34 drives the rear mold vertical slider 35 to move upward. At this time, the first rear mold inclined surface 361 on the rear mold vertical slider 35 and the second rear mold inclined surface 362 at the end of the rear mold horizontal slider cooperate with each other. Since the first rear mold inclined surface 361 and the second rear mold inclined surface 362 are inclined, the upward movement of the rear mold vertical slider 35 decomposes the vertical force into a horizontal component through the interaction between these two inclined surfaces. At the same time, the rear mold sliding protrusion 363 is embedded in the rear mold sliding groove 364. Their cooperation ensures the effective transmission of force, so that the rear mold horizontal slider is pushed in the horizontal direction, thus protruding from the first protrusion hole 311 and participating in the construction of the injection molding space.

[0062] During the mold opening process, the rear mold A plate 34 drives the rear mold vertical slider 35 to move downward. The first rear mold inclined surface 361 and the second rear mold inclined surface 362 continue to interact. The downward movement of the rear mold vertical slider 35 is converted into a horizontal force that causes the rear mold horizontal slider to retract. The rear mold sliding protrusion 363 slides in the rear mold sliding groove 364, guiding the rear mold horizontal slider to retract smoothly into the first protrusion hole 311, creating conditions for the smooth demolding of the product.

[0063] Preferably, the design of the rear mold sliding protrusion 363 being embedded in the rear mold sliding groove 364 ensures more precise force transmission between the rear mold vertical slider 35 and the rear mold horizontal slider. During the movement, this cooperation method can prevent relative sliding or misalignment between the two, allowing the rear mold horizontal slider to extend and retract accurately according to the design requirements, ensuring the accuracy of mold forming and improving the dimensional accuracy and quality stability of the product.

[0064] Preferably, the corresponding arrangement of the first rear mold inclined surface 361 and the second rear mold inclined surface 362, as well as the cooperation between the rear mold sliding protrusion 363 and the rear mold sliding groove 364, together provide a stable trajectory for the movement of the rear mold horizontal slider. The rear mold horizontal slider will not wobble or deviate during horizontal movement and can move smoothly along the predetermined direction, further improving the accuracy of mold movement.

[0065] Preferably, the cooperation between the rear mold sliding protrusion 363 and the rear mold sliding groove 364 increases the connection strength between the rear mold vertical slider 35 and the rear mold horizontal slider. During the mold opening and closing process, it can withstand greater forces without being easily damaged, ensuring the stability of the mold structure. Especially during the injection molding process, the inside of the mold is subjected to high pressure. This stable connection structure can effectively prevent the rear mold horizontal slider from loosening or falling off due to force, ensuring the normal operation of the mold.

[0066] Preferably, the contact area between the rear mold sliding protrusion 363 and the rear mold sliding groove 364 is relatively large, and the force can be evenly distributed during the movement, thereby reducing the wear between the two. At the same time, this cooperation method can also play a certain role in lubrication and buffering, further reducing the degree of wear and extending the service life of the mold.

[0067] Preferably, the design of the rear mold sliding protrusion 363 and the rear mold sliding groove 364 makes the assembly of the rear mold vertical slider 35 and the rear mold horizontal slider more convenient. During the mold assembly process, the connection between the two can be completed simply by accurately embedding the rear mold sliding protrusion 363 into the rear mold sliding groove 364, which improves the assembly efficiency of the mold.

[0068] If the rear mold sliding protrusion 363 or the rear mold sliding groove 364 is worn or damaged, their relatively independent structures make them easy to repair or replace individually. This reduces the difficulty and cost of mold maintenance, reduces the time spent on mold maintenance, and improves production efficiency.

[0069] like Figures 1 to 10As shown, the horizontal slider module 12 of the pre-shot die in this embodiment includes multiple horizontal sliders of the pre-shot die. The pre-shot die slider driving assembly 13 includes a pre-shot die A plate 14, a pre-shot die vertical slider 15, and a pre-shot die inclined guide member 16. The pre-shot die A plate 14 is located below the pre-shot die 1 and can move closer to or further away from the pre-shot die 1. The pre-shot die vertical slider 15 corresponds one-to-one with the pre-shot die horizontal slider. The pre-shot die vertical slider 15 is fixed on the pre-shot die A plate 14. The pre-shot die 1 is provided with a pre-shot die sliding hole 17 that is slidably connected to the pre-shot die vertical slider 15. The pre-shot die inclined guide member 16 is located between the pre-shot die vertical slider 15 and the pre-shot die horizontal slider. The pre-shot die vertical slider 15 can drive the pre-shot die horizontal slider to move horizontally through the pre-shot die inclined guide member 16.

[0070] Preferably, when the mold is closed, the first injection mold A plate 14 moves toward the first injection mold 1. Since the first injection mold vertical slider 15 is fixed on the first injection mold A plate 14, the first injection mold vertical slider 15 will move upward together with the first injection mold A plate 14. The first injection mold vertical slider 15 slides upward in the first injection mold sliding hole 17, ensuring the linearity and stability of its movement.

[0071] Preferably, the inclined guide member 16 of the first injection mold is located between the vertical slider 15 and the horizontal slider of the first injection mold. When the vertical slider 15 of the first injection mold moves upward, the inclined guide member 16 of the first injection mold will convert the vertical movement of the vertical slider 15 into the horizontal movement of the horizontal slider. Specifically, the inclined structure of the inclined guide member 16 of the first injection mold causes a horizontal component force to be applied to the horizontal slider of the first injection mold during the upward movement of the vertical slider 15, thereby pushing the horizontal slider of the first injection mold to move towards the inside of the mold cavity. Multiple horizontal sliders of the first injection mold jointly participate in constructing a complete injection molding space.

[0072] During mold opening, the first injection mold A plate 14 moves away from the first injection mold 1, causing the first injection mold vertical slider 15 to move downward. The first injection mold vertical slider 15 slides downward within the first injection mold sliding hole 17. The first injection mold inclined guide component 16 plays its role again, converting the downward movement of the first injection mold vertical slider 15 into the reverse horizontal movement of the first injection mold horizontal slider, causing the first injection mold horizontal slider to move away from the mold cavity and exit from the first injection molding space, creating conditions for demolding the molded product.

[0073] Preferably, the design of multiple horizontal sliders in the first injection mold can be flexibly combined and arranged according to the complex shape and structural requirements of the product, and together they can construct a complex first injection molding space. The horizontal movement of the horizontal sliders is achieved by the inclined guide component 16 of the first injection mold, which can meet the shape feature requirements of the product in different directions, such as the undercut, protrusion, and groove structure on the side of the product, thereby expanding the molding capacity of the mold and enabling the mold to manufacture more complex products.

[0074] Preferably, the horizontal slider of each injection mold can be independently controlled in terms of its horizontal movement position and stroke. Through precise design and adjustment, multiple horizontal sliders of the injection mold can be accurately spliced ​​together when the mold is closed to form a high-precision cavity. This can ensure the dimensional accuracy and surface quality of the molded product, reduce product defects caused by mold structure problems, and improve the product qualification rate.

[0075] Preferably, the vertical slider 15 of the first injection mold slides within the sliding hole 17 of the first injection mold, providing good guidance and support for the movement of the vertical slider 15 of the first injection mold, ensuring the linearity and stability of its movement. At the same time, the inclined guide component 16 of the first injection mold can smoothly convert the vertical movement into horizontal movement, avoiding impact and vibration during the movement process, making the horizontal movement of the horizontal slider of the first injection mold more stable, which is conducive to improving the service life of the mold and the quality of the molded product.

[0076] Preferably, the rational design of the vertical slider 15 of the first injection mold fixed on the A plate 14 of the first injection mold and the inclined guide component 16 of the first injection mold makes the entire drive structure have high strength and reliability. During the mold opening and closing process, it can withstand a large force without being easily damaged, ensuring the normal operation of the mold and reducing production interruption and maintenance costs caused by mold failure.

[0077] The design of the horizontal slider module 12 and the slider drive assembly 13 of the first injection mold can be modularized. The horizontal slider, vertical slider 15 and inclined guide component 16 of the first injection mold can be designed and manufactured separately. This modular design facilitates the assembly and debugging of the mold, improves the manufacturing efficiency of the mold, and also makes it easy to modify and optimize the mold to meet the production needs of different products.

[0078] The design of using multiple horizontal sliders for the first injection mold and corresponding drive components can decompose the complex structure of the mold into multiple relatively simple parts, reducing the manufacturing difficulty and processing cost of the mold. Each part can be manufactured using appropriate processing technology, ensuring the manufacturing precision and quality of the mold.

[0079] like Figures 1 to 10As shown, the pre-shot die inclined guide member 16 of this embodiment includes a first pre-shot die inclined surface 161, a second pre-shot die inclined surface 162, a pre-shot die sliding protrusion 163, and a pre-shot die sliding groove 164. The first pre-shot die inclined surface 161 is disposed on one side of the pre-shot die vertical slider 15. The pre-shot die sliding protrusion 163 is disposed on the first pre-shot die inclined surface 161. The second pre-shot die inclined surface 162 is disposed at the end of the pre-shot die horizontal slider. The pre-shot die sliding groove 164 is recessed on the end of the pre-shot die horizontal slider having the second pre-shot die inclined surface 162. The first pre-shot die inclined surface 161 and the second pre-shot die inclined surface 162 are correspondingly disposed. The pre-shot die sliding protrusion 163 is embedded in the pre-shot die sliding groove 164.

[0080] Preferably, during the mold closing process, the first injection mold A plate 14 drives the first injection mold vertical slider 15 to move upward. Since the first injection mold inclined surface 161 is located on one side of the first injection mold vertical slider 15, and the first injection mold inclined surface 161 and the second injection mold inclined surface 162 are correspondingly arranged, when the first injection mold vertical slider 15 moves upward, the first injection mold inclined surface 161 and the second injection mold inclined surface 162 slide against each other, and the first injection mold sliding protrusion 163 is embedded in the first injection mold sliding groove 164. During this process, the first injection mold sliding protrusion 163 slides in the first injection mold sliding groove 164, playing a guiding role. As the first injection mold vertical slider 15 rises, the inclined surfaces of the first injection mold inclined surface 161 and the second injection mold inclined surface 162 cooperate to close the first injection mold vertical slider 15. The vertical upward movement is transformed into the horizontal inward movement of the horizontal slider of the first injection mold, causing multiple horizontal sliders of the first injection mold to move towards the center of the mold cavity, and together construct the injection molding space.

[0081] When the mold is opened, the first injection mold A plate 14 drives the first injection mold vertical slider 15 to move downward. The first injection mold inclined surface 161 and the second injection mold inclined surface 162 still slide against each other. The first injection mold sliding protrusion 163 slides in the opposite direction in the first injection mold sliding groove 164. At this time, through the action of the inclined surface, the vertical downward movement of the first injection mold vertical slider 15 is converted into the horizontal outward movement of the first injection mold horizontal slider, so that the first injection mold horizontal slider exits from the injection molding space, creating conditions for product demolding.

[0082] Preferably, the sliding protrusion 163 of the first injection mold is embedded in the sliding groove 164 of the first injection mold, which plays a precise guiding role during the movement. It restricts the relative movement direction between the vertical slider 15 and the horizontal slider of the first injection mold, ensuring that the vertical movement of the vertical slider 15 of the first injection mold can be accurately converted into the horizontal movement of the horizontal slider of the first injection mold. This avoids the slider from deviating or wobbling during the movement, thereby ensuring the accuracy of the movement of each slider during the mold opening and closing process, which is beneficial to improving the dimensional accuracy and quality of the molded product.

[0083] This sliding fit structure makes the contact between the vertical slider 15 and the horizontal slider of the first injection mold more stable, reducing friction and wear during the movement process. After multiple mold opening and closing operations, it can still maintain good motion performance, improve the motion stability and reliability of the mold, and extend the service life of the mold.

[0084] Preferably, the design of the first pre-shot die inclined surface 161 and the second pre-shot die inclined surface 162 utilizes the principle of inclined surface transmission, which can efficiently convert the vertical motion of the pre-shot die vertical slider 15 into the horizontal motion of the pre-shot die horizontal slider. The angle of the inclined surface can be designed and adjusted according to actual needs to achieve different motion speeds and stroke ratios to meet the molding requirements of different products. By reasonably designing the inclined surface angle, a larger horizontal stroke can be achieved with a smaller vertical stroke, thereby improving the space utilization and working efficiency of the mold.

[0085] During the motion conversion process, the cooperation between the sliding protrusion 163 and the sliding groove 164 of the first injection mold makes the force transmission smoother and reduces the energy loss in the transmission process. Compared with some complex transmission mechanisms, this inclined guide structure is simple and direct, and can effectively transmit the power provided by the first injection mold A plate 14 to the first injection mold horizontal slider, thereby improving the energy utilization efficiency of the mold and reducing production costs.

[0086] Preferably, each part of the first-shot pre-die inclined guide component 16 (first-shot pre-die inclined surface 161, second-shot pre-die inclined surface 162, first-shot pre-die sliding protrusion 163 and first-shot pre-die sliding groove 164) can be designed and manufactured as a relatively independent module. During the mold assembly process, it is convenient to install it onto the first-shot pre-die vertical slider 15 and the first-shot pre-die horizontal slider, thereby improving the mold assembly efficiency.

[0087] If the inclined guide component 16 of the first injection mold is worn or damaged during use, it can be easily disassembled and replaced due to its relatively independent structure. Only the damaged part needs to be replaced, without the need for large-scale repair of the entire mold, which reduces the mold maintenance cost and downtime and ensures the continuity of production.

[0088] like Figures 1 to 10 As shown, the two-shot front mold horizontal slider module 22 of this embodiment includes multiple two-shot front mold horizontal sliders. The two-shot front mold slider driving assembly 23 includes a two-shot front mold A plate 24, a two-shot front mold vertical slider 25, and a two-shot front mold inclined guide member 26. The two-shot front mold A plate 24 is located below the two-shot front mold 2 and can move closer to or further away from the two-shot front mold 2. The two-shot front mold vertical slider 25 corresponds one-to-one with the two-shot front mold horizontal sliders. The two-shot front mold vertical slider 25 is fixed on the two-shot front mold A plate 24. The two-shot front mold 2 is provided with a two-shot front mold sliding hole 27 that is slidably connected to the two-shot front mold vertical slider 25. The two-shot front mold inclined guide member 26 is located between the two-shot front mold vertical slider 25 and the two-shot front mold horizontal slider. The two-shot front mold vertical slider 25 can drive the two-shot front mold horizontal slider to move horizontally through the two-shot front mold inclined guide member 26.

[0089] Preferably, when the injection mold is working, the front mold plate A 24 of the second injection will move closer to or further away from the front mold 2 under the action of the power device (such as the drive mechanism of the injection molding machine). For example, during the mold closing process, the front mold plate A 24 of the second injection will move closer to the front mold 2 of the second injection; during the mold opening process, the front mold plate A 24 of the second injection will move away from the front mold 2 of the second injection.

[0090] Since the vertical slider 25 of the second-shot front mold is fixed on the A plate 24 of the second-shot front mold, the movement of the A plate 24 of the second-shot front mold will drive the vertical slider 25 of the second-shot front mold to move together. The vertical slider 25 of the second-shot front mold slides vertically within the sliding hole 27 of the second-shot front mold 2.

[0091] The inclined guide member 26 of the second-shot mold is disposed between the vertical slider 25 and the horizontal slider of the second-shot mold. When the vertical slider 25 moves vertically, its inclined surface interacts with the inclined guide member 26. According to the mechanical principle of the inclined surface, the vertical motion is converted into a horizontal component force through the inclined surface. This component force pushes the horizontal slider of the second-shot mold to move horizontally. For example, when the A plate 24 of the second-shot mold approaches the second-shot mold 2, the vertical slider 25 moves upward, and the inclined guide member 26 causes the horizontal slider to move towards the center of the mold cavity, realizing the mold closing action; when the A plate 24 of the second-shot mold moves away from the second-shot mold 2, the vertical slider 25 moves downward, and the horizontal slider moves away from the center of the mold cavity under the action of the inclined guide member 26, realizing the mold opening action.

[0092] In the production of some injection molded products (such as earphones), it is necessary to set a horizontal slider in the front mold part of the mold to form complex structures such as side holes and side recesses. Through the design of this two-shot front mold horizontal slider module and slider drive assembly, the horizontal movement of the horizontal slider can be easily realized during the mold opening and closing process, thereby meeting the molding requirements of complex product structures.

[0093] The vertical slider 25 of the second-shot front mold is set in the sliding hole 27 of the second-shot front mold. The vertical motion is converted into horizontal motion by the inclined guide component 26. This design makes the entire drive mechanism compact and does not require an additional large horizontal drive device, saving mold space and reducing the overall size and cost of the mold.

[0094] The vertical slider 25 of the second-shot front mold slides within the sliding hole 27 of the second-shot front mold, providing good guidance and support for the movement of the slider and ensuring the stability of the movement. At the same time, the design of the inclined guide component 26 makes the force transmission smoother and can accurately control the moving distance and speed of the horizontal slider of the second-shot front mold, improving the accuracy and reliability of the mold action.

[0095] The various components of this structure are relatively independent, making them easy to disassemble and install. When a component malfunctions, it can be easily replaced and repaired, reducing mold maintenance time and costs and improving production efficiency.

[0096] like Figures 1 to 10As shown, the two-shot front mold inclined guide component 26 of this embodiment includes a first two-shot front mold inclined surface 261, a second two-shot front mold inclined surface 262, a two-shot front mold sliding protrusion 263, and a two-shot front mold sliding groove 264. The first two-shot front mold inclined surface 261 is disposed on one side of the two-shot front mold vertical slider 25. The two-shot front mold sliding protrusion 263 is disposed on the first two-shot front mold inclined surface 261. The second two-shot front mold inclined surface 262 is disposed at the end of the two-shot front mold horizontal slider. The two-shot front mold sliding groove 264 is recessed on the end of the two-shot front mold horizontal slider having the second two-shot front mold inclined surface 262. The first two-shot front mold inclined surface 261 and the second two-shot front mold inclined surface 262 are correspondingly disposed. The two-shot front mold sliding protrusion 263 is embedded in the two-shot front mold sliding groove 264.

[0097] Preferably, when the A plate 24 of the second-shot front mold drives the vertical slider 25 of the second-shot front mold to move vertically, since the first inclined surface 261 of the second-shot front mold is set on one side of the vertical slider 25 of the second-shot front mold, and the first inclined surface 261 of the second-shot front mold and the second inclined surface 262 of the second-shot front mold are correspondingly set and are in contact with each other, according to the principle of inclined plane mechanics, the force generated by the vertical movement of the vertical slider will be transmitted and decomposed through the contact between the two inclined surfaces.

[0098] When the vertical slider 25 of the second-shot front mold moves vertically upward or downward, the first second-shot front mold inclined surface 261 applies an oblique force to the second second-shot front mold inclined surface 262. This oblique force can be decomposed into horizontal and vertical components. The horizontal component will push the horizontal slider of the second-shot front mold to move horizontally. For example, when the vertical slider 25 of the second-shot front mold moves upward, the force from the first second-shot front mold inclined surface 261 to the second second-shot front mold inclined surface 262 will cause the horizontal slider of the second-shot front mold to move towards the center of the mold cavity. Conversely, when the vertical slider 25 of the second-shot front mold moves downward, the horizontal slider of the second-shot front mold will move away from the center of the mold cavity.

[0099] The sliding protrusion 263 of the second-shot front mold is embedded in the sliding groove 264 of the second-shot front mold. During the relative movement of the vertical slider 25 and the horizontal slider of the second-shot front mold, the sliding protrusion slides along the sliding groove. This design plays a precise guiding role, ensuring that the vertical movement of the vertical slider 25 of the second-shot front mold can be stably and accurately converted into the horizontal movement of the horizontal slider of the second-shot front mold, avoiding lateral deviation or swaying during the force transmission process, and ensuring the accuracy of the movement.

[0100] The cooperation between the sliding protrusion 263 and the sliding groove 264 of the second-shot front mold is similar to that between a guide rail and a slider. It provides precise guidance for the movement of the horizontal slider of the second-shot front mold. During the mold opening and closing process, the movement trajectory of the horizontal slider can be strictly controlled, so that the slider moves accurately in the predetermined direction and distance, thereby ensuring the dimensional and shape accuracy of the product molding and reducing product defects caused by slider movement deviation.

[0101] The corresponding arrangement of the first and second injection mold inclined surfaces 261 and 262 makes the force transmission more uniform and stable. At the same time, the structure of the sliding protrusion embedded in the sliding groove increases the contact area and friction between the two inclined surfaces, further improving the stability of force transmission. During the frequent opening and closing of the mold, it can effectively avoid the instability or jamming of the slider movement caused by force fluctuations, ensuring the smoothness of mold operation.

[0102] The cooperation between the sliding protrusion 263 and the sliding groove 264 of the second-shot front mold makes the relative movement between the vertical slider 25 and the horizontal slider of the second-shot front mold more standardized. This standardized movement reduces abnormal wear on the slider surface and extends the service life of the slider and the inclined guide component. In addition, due to the stable movement, the impact of wear-induced clearance on mold precision is reduced, improving the overall durability of the mold.

[0103] During mold assembly, the design of the sliding protrusion 263 and sliding groove 264 of the second-shot front mold facilitates the positioning and installation of the vertical slider 25 and the horizontal slider of the second-shot front mold. Assembly personnel can quickly achieve the correct connection and fit between the two sliders by accurately embedding the sliding protrusion into the sliding groove. During the mold debugging stage, it is also easier to adjust the movement state of the sliders to ensure that the mold achieves optimal working performance.

[0104] like Figures 1 to 10 As shown, the horizontal slider of the front mold in this embodiment includes a plurality of front mold irregular hole forming sliders 121. The side wall of the front mold cavity 11 is also provided with a volume button front forming hole 112. The rear mold horizontal slider module 32 includes a plurality of rear mold horizontal sliders. The rear mold horizontal slider includes a plurality of rear mold irregular hole forming sliders 321 and a volume button back forming slider 322.

[0105] Preferably, during injection molding, the multiple injection mold front die irregular hole forming sliders 121 in the horizontal slider of the injection front die and the injection front die cavity 11 together constitute part of the mold cavity. The plastic raw material is injected into this cavity composed of the injection front die cavity 11 and the injection front die irregular hole forming sliders 121, etc. After cooling and solidification, it forms part of the shape of the product. At the same time, the volume button front forming hole 112 on the side wall of the injection front die cavity 11 forms the shape of the front of the volume button on the product.

[0106] Among them, multiple rear mold irregular hole forming sliders 321 cooperate with some products after injection molding to further form other irregular holes on the product. The volume button back forming slider 322 corresponds to the volume button front forming hole 112 formed during injection molding. After the rear mold and the front mold are closed, they jointly complete the complete forming of the volume button. That is, through the combination of the front and rear molds, the overall shape of the volume button and various irregular holes on the product are accurately shaped on the product.

[0107] During the mold opening and closing process, the horizontal slider of the front mold and the horizontal slider module 32 of the rear mold will slide accordingly according to the mold's movement. When the mold opens, the slider will slide away from the mold cavity to remove the molded product. When the mold closes, the slider will slide towards the center of the mold cavity to recombine into a complete cavity, preparing for the next molding. The movement of these sliders is usually driven and controlled by the mold's guiding mechanism (such as inclined guide pillars, slider guide rails, etc.).

[0108] The design of multiple front mold irregular hole forming sliders 121 and rear mold irregular hole forming sliders 321 enables the mold to form products with various complex irregular holes. In modern electronic products and other fields, the structure of products is becoming more and more complex, and it is necessary to open holes of various shapes and sizes on the products. This multi-slider irregular hole forming design can meet the diverse design requirements of products and improve the forming capability of the mold.

[0109] The cooperation between the front molding hole 112 and the back molding slider 322 of the volume button can accurately shape the front and back of the volume button. This is crucial for the appearance and function of the product, ensuring the dimensional and shape accuracy of the volume button, making the button's feel and operation performance meet the design requirements, and improving the product quality and user experience.

[0110] By assigning the functions of different parts to different sliders, such as having different sliders complete the forming of irregular holes and volume buttons, the structure of the mold becomes more modular. During the mold manufacturing process, each slider can be processed and manufactured separately, reducing the difficulty and cost of mold manufacturing. Moreover, when the mold malfunctions or needs repair, individual sliders can be easily replaced or repaired, reducing maintenance time and costs.

[0111] Because the movement of the slider enables rapid mold opening and closing, and allows for the simultaneous molding of multiple parts (such as multiple irregular holes and volume buttons) in a single molding process, the molding process and time are reduced. Compared with traditional molding methods, this multi-slider mold design can produce more products in a shorter time, thus improving production efficiency.

[0112] By replacing different front mold irregular hole forming sliders 121 and rear mold irregular hole forming sliders 321, the irregular hole forming requirements of different products can be adapted. For different models or styles of products, only the sliders need to be replaced or adjusted accordingly, and the same set of mold main structure can be used for production, which improves the versatility and flexibility of the mold and reduces the mold investment cost of enterprises.

[0113] like Figures 1 to 10 As shown, the horizontal slider of the two-shot front mold in this embodiment includes multiple two-shot front mold irregular hole forming sliders 221 and volume button cutting A slider 222. The two-shot front mold irregular hole forming sliders 221 have the same structure as the one-shot front mold irregular hole forming slider 121. The volume button cutting A slider 222 can cooperate with the volume button back forming slider 322 to cut off the volume button.

[0114] After the first injection molding is completed, the first injection molded product is placed into the second injection mold. At this time, the horizontal slider of the front mold and the horizontal slider module 32 of the second injection mold start to move. The multiple second injection front mold irregular hole forming sliders 221 in the horizontal slider of the front mold cooperate with the existing part of the structure on the first injection molded product. The corresponding sliders in the horizontal slider module 32 of the rear mold also cooperate accordingly. The front and rear molds are closed to form a complete second injection cavity.

[0115] Plastic raw material is injected into the cavity of the second injection mold. The plastic flows and fills the cavity. After cooling and solidification, it combines with the product formed in the first injection to further form other parts of the product. Since the irregular hole forming slider 221 of the second injection mold has the same structure as the irregular hole forming slider 121 of the first injection mold, they can ensure the forming accuracy and consistency of the irregular hole in the second injection process, so that the irregular hole of the product maintains good connection and accuracy in the two forming processes.

[0116] Before the two-shot molding, after the mold closes, the volume button cutting A slider 222 and the volume button back forming slider 322 cooperate with each other. Driven by a specific motion mechanism (such as a guide post, a slider drive device, etc.), these two sliders move to the position of the volume button. The volume button cutting A slider 222 and the volume button back forming slider 322 usually have specific tools or cutting structures (such as cutting grooves, etc.). During their relative movement, the volume button is cut off.

[0117] By integrating the volume button cutting operation into the mold opening and closing process, additional post-processing steps are avoided after the product is formed. Traditional methods may require manual or other equipment to perform secondary processing on the volume buttons, but this slider design allows the cutting operation to be completed automatically inside the mold, saving production time and labor costs and improving production efficiency.

[0118] Since the two-shot front mold irregular hole forming slider 221 has the same structure as the one-shot front mold irregular hole forming slider 121, standardized design and processing methods can be adopted in the mold design and manufacturing process, reducing the mold manufacturing time and cost. At the same time, in the production process, the movement and cooperation of the slider can quickly complete operations such as two-shot forming and volume button cutting, shortening the entire production cycle and improving molding efficiency.

[0119] The use of the same structure for the two-shot pre-mold irregular hole forming slider 221 and the one-shot pre-mold irregular hole forming slider 121 simplifies the mold design process. Mold designers can reuse the same design scheme and manufacturing process, reducing the complexity of the design and the possibility of errors. Moreover, due to the identical structure, the operation is more convenient and faster when maintaining the mold and replacing the slider.

[0120] like Figures 1 to 10 As shown, the horizontal slider of the pre-molding mold in this embodiment also includes a pre-molding elongated hole forming slider 122. During mold closing, the pre-molding elongated hole forming slider 122 moves towards the center of the mold cavity under the guidance of a specific guiding mechanism (such as an inclined guide post, slider guide rail, etc.). It accurately reaches the predetermined position and cooperates with the corresponding part of the rear mold to jointly form the cavity for forming the elongated hole of the product. This positioning process is precisely controlled by the mechanical structure of the mold to ensure the positional accuracy of the slider, thereby ensuring the accuracy of the elongated hole forming.

[0121] When the elongated hole forming slider 122 of the first injection mold reaches the designated position, it fits tightly with the other parts of the mold to form a closed cavity. At this time, the front and rear molds are completely closed, preparing for the injection of plastic raw materials.

[0122] Under the pressure of the injection molding machine, the plastic raw material is injected into the cavity formed by the elongated hole forming slider 122 of the injection mold. The plastic flows and fills the cavity, covering the forming part of the elongated hole forming slider 122 of the injection mold, and gradually forming the shape of the product, including the elongated hole part.

[0123] The injected plastic gradually solidifies and forms after cooling in the cavity for a certain period of time. During this process, the elongated hole forming slider 122 of the first injection mold maintains a stable position to ensure that the elongated hole will not deform during the solidification process, thus ensuring its size and shape accuracy.

[0124] Once the plastic has fully cured, the mold begins to open. The elongated hole forming slider 122 of the pre-molding mold moves in the opposite direction to the mold closing direction under the guidance of the guiding mechanism, gradually exiting the molded product. This process requires precise control to avoid interference between the slider and the product, ensuring the product can be smoothly removed from the mold.

[0125] The elongated hole forming slider 122 of the front mold directly forms the elongated hole during the injection molding process, eliminating the need for a separate machining process for the elongated hole later. The traditional method may require machining the elongated hole through drilling, milling and other mechanical methods after the product is injection molded. This not only increases the processing time and cost, but may also introduce processing errors. This slider design allows the elongated hole to be formed in one step during the injection molding process, which improves production efficiency and reduces production costs.

[0126] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A two-color mold structure with in-mold sliders, comprising a first-shot front mold (1), a second-shot front mold (2), and two rear molds (3), wherein the two rear molds (3) are arranged side by side and are in a state where the other rear mold (3) is rotated 180 degrees along a vertical line, characterized in that: The rear mold (3) is provided with a rear mold protrusion (31), and a rear mold horizontal slider module (32) is slidably connected inside the rear mold protrusion (31). The side wall of the rear mold protrusion (31) is provided with a first protrusion hole (311) for the end of the rear mold horizontal slider module (32) to protrude. The rear mold (3) is also provided with a rear mold slider drive assembly (33) that can drive the rear mold horizontal slider module (32) to move horizontally. The pre-injection mold (1) is provided with a pre-injection mold cavity (11) that can cooperate with the rear mold protrusion (31). A pre-injection mold horizontal slider module (12) is slidably connected inside the pre-injection mold (1). The side wall of the pre-injection mold cavity (11) is provided with a second protrusion hole (111) for the end of the pre-injection mold horizontal slider module (12) to protrude. The pre-injection mold (1) is also provided with a pre-injection mold slider drive assembly (13) that can drive the pre-injection mold horizontal slider module (12) to move horizontally. The two-shot front mold (2) is provided with a two-shot front mold cavity (21) that can cooperate with the rear mold protrusion (31). A two-shot front mold horizontal slider module (22) is slidably connected inside the two-shot front mold (2). The side wall of the two-shot front mold cavity (21) is provided with a third protrusion hole (211) for the end of the two-shot front mold horizontal slider module (22) to protrude. The two-shot front mold (2) is also provided with a two-shot front mold slider drive assembly (23) that can drive the two-shot front mold horizontal slider module (22) to move horizontally.

2. The dual-color mold structure with front and rear in-mold sliders according to claim 1, characterized in that: The rear mold horizontal slider module (32) includes multiple rear mold horizontal sliders. The rear mold slider driving assembly (33) includes a rear mold A plate (34), a rear mold vertical slider (35), and a rear mold inclined guide component (36). The rear mold A plate (34) is located below the rear mold (3) and can move closer to or further away from the rear mold (3). The rear mold vertical slider (35) corresponds one-to-one with the rear mold horizontal slider. The rear mold vertical slider (35) is fixed on the rear mold A plate (34). The rear mold (3) is provided with a rear mold sliding hole (37) that is slidably connected to the rear mold vertical slider (35). The rear mold inclined guide component (36) is located between the rear mold vertical slider (35) and the rear mold horizontal slider. The rear mold vertical slider (35) can drive the rear mold horizontal slider to move horizontally through the rear mold inclined guide component (36).

3. The dual-color mold structure with in-mold sliders in the front and rear molds according to claim 2, characterized in that: The rear mold inclined guide component (36) includes a first rear mold inclined surface (361), a second rear mold inclined surface (362), a rear mold sliding protrusion (363), and a rear mold sliding groove (364). The first rear mold inclined surface (361) is located on one side of the rear mold vertical slider (35). The rear mold sliding protrusion (363) is located on the first rear mold inclined surface (361). The second rear mold inclined surface (362) is located at the end of the rear mold horizontal slider. The rear mold sliding groove (364) is recessed on the end of the rear mold horizontal slider with the second rear mold inclined surface (362). The first rear mold inclined surface (361) and the second rear mold inclined surface (362) are correspondingly arranged. The rear mold sliding protrusion (363) is embedded in the rear mold sliding groove (364).

4. The dual-color mold structure with front and rear in-mold sliders according to claim 1, characterized in that: The first-shot mold horizontal slider module (12) includes multiple first-shot mold horizontal sliders. The first-shot mold slider drive assembly (13) includes a first-shot mold A plate (14), a first-shot mold vertical slider (15), and a first-shot mold inclined guide component (16). The first-shot mold A plate (14) is located below the first-shot mold (1) and can move closer to or further away from the first-shot mold (1). The first-shot mold vertical slider (15) corresponds one-to-one with the first-shot mold horizontal slider. The vertical slider (15) of the first injection mold is fixed on the A plate (14) of the first injection mold. The first injection mold (1) is provided with a sliding hole (17) of the first injection mold that is slidably connected to the vertical slider (15) of the first injection mold. The inclined guide member (16) of the first injection mold is provided between the vertical slider (15) of the first injection mold and the horizontal slider of the first injection mold. The vertical slider (15) of the first injection mold can drive the horizontal slider of the first injection mold to move horizontally through the inclined guide member (16).

5. The dual-color mold structure with front and rear in-mold sliders according to claim 4, characterized in that: The pre-shot die inclined guide component (16) includes a first pre-shot die inclined surface (161), a second pre-shot die inclined surface (162), a pre-shot die sliding protrusion (163), and a pre-shot die sliding groove (164). The first pre-shot die inclined surface (161) is located on one side of the pre-shot die vertical slider (15). The pre-shot die sliding protrusion (163) is located on the first pre-shot die inclined surface (161). The second pre-shot die inclined surface (162) is located at the end of the pre-shot die horizontal slider. The pre-shot die sliding groove (164) is recessed on the end of the pre-shot die horizontal slider with the second pre-shot die inclined surface (162). The first pre-shot die inclined surface (161) and the second pre-shot die inclined surface (162) are correspondingly arranged. The pre-shot die sliding protrusion (163) is embedded in the pre-shot die sliding groove (164).

6. The dual-color mold structure with front and rear in-mold sliders according to claim 1, characterized in that: The two-shot front mold horizontal slider module (22) includes multiple two-shot front mold horizontal sliders. The two-shot front mold slider drive assembly (23) includes a two-shot front mold A plate (24), a two-shot front mold vertical slider (25), and a two-shot front mold inclined guide component (26). The two-shot front mold A plate (24) is located below the two-shot front mold (2) and can move closer to or further away from the two-shot front mold (2). The two-shot front mold vertical slider (25) corresponds one-to-one with the two-shot front mold horizontal sliders. The vertical slider (25) of the second-shot front mold is fixed on the A plate (24) of the second-shot front mold. The second-shot front mold (2) is provided with a sliding hole (27) of the second-shot front mold that is slidably connected to the vertical slider (25) of the second-shot front mold. The inclined guide member (26) of the second-shot front mold is provided between the vertical slider (25) of the second-shot front mold and the horizontal slider of the second-shot front mold. The vertical slider (25) of the second-shot front mold can drive the horizontal slider of the second-shot front mold to move horizontally through the inclined guide member (26).

7. A dual-color mold structure with in-mold sliders in front and rear molds according to claim 6, characterized in that: The two-shot front die inclined guide component (26) includes a first two-shot front die inclined surface (261), a second two-shot front die inclined surface (262), a two-shot front die sliding protrusion (263), and a two-shot front die sliding groove (264). The first two-shot front die inclined surface (261) is located on one side of the two-shot front die vertical slider (25). The two-shot front die sliding protrusion (263) is located on the first two-shot front die inclined surface (261). The second two-shot front die inclined surface (262) is located at the end of the two-shot front die horizontal slider. The two-shot front die sliding groove (264) is recessed on the end of the two-shot front die horizontal slider with the second two-shot front die inclined surface (262). The first two-shot front die inclined surface (261) and the second two-shot front die inclined surface (262) are correspondingly arranged. The two-shot front die sliding protrusion (263) is embedded in the two-shot front die sliding groove (264).

8. The dual-color mold structure with front and rear in-mold sliders according to claim 1, characterized in that: The first injection front mold horizontal slider module (12) includes multiple first injection front mold horizontal sliders, each first injection front mold horizontal slider including multiple first injection front mold irregular hole forming sliders (121), and the side wall of the first injection front mold cavity (11) is also provided with a volume button front forming hole (112). The rear mold horizontal slider module (32) includes multiple rear mold horizontal sliders, each rear mold horizontal slider including multiple rear mold irregular hole forming sliders (321) and a volume button back forming slider (322).

9. A two-color mold structure with in-mold sliders in the front and rear molds according to claim 8, characterized in that: The two-shot front mold horizontal slider module (22) includes multiple two-shot front mold horizontal sliders. The two-shot front mold horizontal sliders include multiple two-shot front mold irregular hole forming sliders (221) and volume button cutting A sliders (222). The two-shot front mold irregular hole forming sliders (221) have the same structure as the one-shot front mold irregular hole forming sliders (121). The volume button cutting A sliders (222) can cooperate with the volume button back forming sliders (322) to cut off the volume button.

10. A two-color mold structure with in-mold sliders in the front and rear molds according to claim 9, characterized in that: The pre-injection mold horizontal slider also includes a pre-injection mold elongated hole forming slider (122).

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