Headphone outer shell injection mold easy to demold
By introducing a lateral parting structure into the injection mold of the headset outer shell, and using the coordinated movement of the inclined guide column and the pulling block, the problem of difficult to release the plastic products is solved, and efficient release without damage is achieved.
Patent Information
- Application Number
- CN202421981928.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-15
AI Technical Summary
In existing injection molds, some plastic products are difficult to be released smoothly during demoulding, resulting in damage or damage.
An injection mold for headset outer shell of headphones is designed, adopting a lateral parting structure, including an oblique guide column, a moving mold and a pulling block. The steel wire is pulled out from the rear mold kernel through the pulling block, and the plastic products are ejected with the thimble to achieve smooth mold release.
It effectively avoids damage or damage to plastic products during the demolding process, and improves the demolding efficiency and success rate.
Smart Images
Figure CN223161288U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of injection molds, and particularly relates to an injection mold for a headphone housing that is easy to demold. Background Art
[0002] Plastic products are widely used in various fields due to their excellent performance and can be designed into various shapes according to diverse requirements to meet the usage requirements in different scenarios. Among them, some plastic products need to be formed into relatively irregular shapes, and corresponding components, such as steel wires, need to be placed in the injection mold before injection so that the components are integrally formed with the molten plastic injected into the plastic mold. During demolding, some plastic products cannot be smoothly demolded, and there will be damage or breakage after demolding. For this reason, we propose an injection mold with an additional demolding structure to achieve the effect of smooth demolding. Summary of the Utility Model
[0003] The main purpose of the utility model is to propose an injection mold for a headphone housing that is easy to demold, aiming to solve the technical problem that in the existing injection molds, some plastic products cannot be smoothly demolded and there will be damage or breakage after demolding.
[0004] To achieve the above purpose, the injection mold for a headphone housing that is easy to demold proposed by the utility model includes a front bottom plate, a front mold base, a rear mold base, and a rear bottom plate arranged in sequence. The front mold base includes a front mold core, and the front mold core is arranged at the lower part of the front mold base. The rear mold base includes a rear mold core, and the rear mold core is arranged at the upper part of the rear mold base.
[0005] It further includes two sets of lateral parting structures. Both sets of lateral parting structures are arranged at the upper part of the rear mold base, and the two sets of lateral parting structures are respectively located on both sides of the front mold core and the rear mold core. The lateral parting structure includes an inclined guide pillar, a moving mold, and a pulling block. The moving mold is slidably connected to the inclined guide pillar, and one side of the moving mold can abut against the plastic product. The pulling block is installed on the moving mold, and the pulling block is connected to the steel wire of the plastic product.
[0006] Optionally, the lateral parting structure further includes a first mounting block. The lower end of the inclined guide pillar extends into the rear mold base, the first mounting block is arranged at the upper end of the inclined guide pillar, and the moving mold is installed between the rear mold base and the first mounting block.
[0007] Optionally, the lateral parting structure further includes a second mounting block and a pull rod. The second mounting block is installed on one side of the moving mold. One end of the pull rod is connected to the second mounting block, and the other end is located inside the moving mold and is movably connected to the pulling block.
[0008] Optionally, the front mold core further includes a front cooling pipeline, and the front cooling pipeline is installed inside the front mold core.
[0009] Optionally, the rear mold core further includes a rear cooling pipeline, which is installed inside the rear mold core.
[0010] Optionally, it further includes a supporting plate and ejector pins. The rear mold base, mounting plate, supporting plate, and rear bottom plate are arranged in sequence from top to bottom. The ejector pins are installed on the mounting plate. The lower end of the ejector pins passes through the mounting plate and abuts against the upper end surface of the supporting plate. The upper end of the ejector pins can extend between the rear mold core and the front mold core to eject the plastic product.
[0011] Optionally, it further includes spacer blocks. The number of spacer blocks is two. The two spacer blocks are respectively arranged on both sides of the rear bottom plate. The supporting plate, mounting plate, and ejector pins are all arranged between the two spacer blocks.
[0012] Optionally, it further includes a movable connection part, a clamping block, and a movable module. The movable connection part includes a connecting block. Both the front bottom plate and the front mold base are movably connected to the connecting block. The clamping block is installed on the front bottom plate, and the lower end of the clamping block passes through the front bottom plate. The movable module passes through the front mold core, and the lower end of the movable module can abut against the plastic product, and the upper end is located inside the front mold base. The lower end of the clamping block can be engaged with the upper end of the movable module. The movable module has a compression spring. One end of the compression spring is connected to the movable module, and the other end is connected to the front mold core.
[0013] Adopting the technical solution of the present utility model has the following beneficial effects:
[0014] By providing a side parting structure, when demolding, the pulling block can pull out the steel wire from the rear mold core, so that the plastic product integrally formed with the steel wire can be smoothly demolded, effectively avoiding damage or damage to the plastic product.
[0015] During demolding, the front bottom plate first moves upward. Since the front bottom plate and the front mold base are movably connected through the movable connection part, the front bottom plate first moves upward relative to the front mold base, and then the front bottom plate and the front mold base move upward synchronously. When the front bottom plate moves upward relative to the front mold base, the lower end of the clamping block disengages from the upper end of the movable module, prompting the movable module to move upward relative to the front mold core to facilitate the demolding operation of the plastic product. Then, the moving molds of the two groups of side parting structures move downward along the inclined guide pillars, driving the pulling block to move in an arc to pull out the steel wire. While the moving mold moves downward, the ejector pins move further upward to eject the plastic product. By providing the above structure, the plastic product can be smoothly demolded, effectively avoiding damage or damage to the plastic product. Description of the Drawings
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0017] Figure 1 Schematic diagram of the overall structure of an injection mold for an easy-to-demold headphone housing of the present invention;
[0018] Figure 2 Exploded structure schematic of an injection mold for an easy-to-demold headphone housing of the present invention Figure 1 ;
[0019] Figure 3 Exploded structure schematic of an injection mold for an easy-to-demold headphone housing of the present invention Figure 2 ;
[0020] Figure 4 Schematic diagram of the structure of the rear mold core and the side parting structure of an injection mold for an easy-to-demold headphone housing of the present invention Figure 1 ;
[0021] Figure 5 Schematic diagram of the structure of the rear mold core and the side parting structure of an injection mold for an easy-to-demold headphone housing of the present invention Figure 2 ;
[0022] Figure 6 Schematic diagram of the structure of the plastic product of an injection mold for an easy-to-demold headphone housing of the present invention.
[0023] Explanation of the reference numerals of the attached drawings: front bottom plate 100, main runner 110, front mold base 200, injection port 210, movable connection part 220, clamping block 230, front mold core 240, front coolant pipe 2401, movable module 2402, rear mold base 300, rear mold core 310, rear cooling pipe 3101, side parting structure 400, first mounting block 410, inclined guide pillar 4101, moving mold 420, second mounting block 430, pull rod 4301, pull block 4302, support plate 500, mounting plate 600, ejector pin 610, rear bottom plate 700, square iron 710, first guide rod 800, plastic product 900, steel wire 910.
[0024] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the attached drawings. Detailed implementation manners
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0028] The present utility model provides an injection mold for the outer shell of a head-mounted earphone that is easy to demold.
[0029] As Figures 1 to 6 shown, in an embodiment of the present utility model, the injection mold for the outer shell of a head-mounted earphone that is easy to demold includes a front bottom plate 100, a front mold base 200, a rear mold base 300, a mounting plate 600, a support plate 500, and a rear bottom plate 700 arranged in sequence. Among them, the front mold base 200 includes a front mold core 240. The front mold core 240 is arranged at the lower part of the front mold base 200, and the front mold core 240 further includes a front cooling pipeline, and the front cooling pipeline is installed in the front mold core 240. Similarly, the rear mold base 300 includes a rear mold core 310. The rear mold core 310 is arranged at the upper part of the rear mold base 300, and the rear mold core 310 further includes a rear cooling pipeline, and the rear cooling pipeline is installed in the rear mold core 310. Specifically, both the front cooling pipeline and the rear cooling pipeline are used to convey a coolant, so as to cool the plastic product 900 located between the front mold core 240 and the rear mold core 310, thereby improving the production efficiency of the plastic product 900. Further, it further includes four first guide rods 800. Both the front mold base 200 and the rear mold base 300 are installed through the first guide rods 800. When clamping and demolding, the front mold base 200 and the front mold core 240 move along the first guide rods 800. It is worth noting that: a main runner 110 is provided on the front bottom plate 100, and an injection port 210 is further provided on the front mold base 200. After the plastic particles are heated to a molten state by an injection molding machine, they are injected into the injection mold through the main runner 110 and the injection port 210 by the injection molding machine.
[0030] In this embodiment, it further includes a movable connection part 220, a clamping block 230, and a movable module 2402. The movable connection part 220 includes a connection block and bolts. The front bottom plate 100 and the front mold base 200 are both movably connected to the connection block by bolts. In this embodiment, the clamping block 230 is installed on the front bottom plate 100, and the lower end of the clamping block 230 passes through the front bottom plate 100 and is arranged. The movable module 2402 passes through the front mold core 240 and is arranged, and the lower end of the movable module 2402 can abut against the plastic product 900, and the upper end is located within the front mold base 200. The lower end of the clamping block 230 can be engaged with the upper end of the movable module 2402. In addition, the movable module 2402 has a compression spring. One end of the compression spring is connected to the movable module 2402, and the other end is connected to the front mold core 240. When the lower end of the clamping block 230 can be engaged with the upper end of the movable module 2402, the compression spring is in a compressed state. At this time, the lower end of the movable module 2402 can abut against the plastic product 900 to ensure that the molten plastic is formed into a qualified plastic product 900; when the lower end of the clamping block 230 is disengaged from the upper end of the movable module 2402, the compression spring enters a normal state, thereby promoting the upward movement of the movable module 2402 relative to the front mold core 240 to facilitate the demolding operation of the plastic product 900.
[0031] In this embodiment, it further includes an ejection guide rail. The above ejector pins 610 and ejection guide rods are both installed on the mounting plate 600. The lower end of the ejector pin 610 passes through the mounting plate 600 and abuts against the upper end surface of the support plate 500. The upper end of the ejector pin 610 can extend between the rear mold core 310 and the front mold core 240 to eject the plastic product 900. Specifically, the upper end of the ejector pin 610 passes through the rear mold core 310 and can abut against the bottom surface of the plastic product 900; when the ejector pin 610 is in a normal state, the upper end surface of the ejector pin 610 is coplanar with the upper end surface of the rear mold core 310 to prevent the molten plastic from overflowing and affecting the molding; when the ejector pin 610 ejects the plastic product 900, the ejector pin 610 moves further upward, thereby ejecting the plastic product 900.
[0032] As Figure 1 and 3 shown, it further includes square irons 710. The number of square irons 710 is two. The two square irons 710 are respectively arranged on both sides of the rear bottom plate 700. The support plate 500, the mounting plate 600, and the ejector pins 610 are all arranged between the two square irons 710.
[0033] As Figure 2 、 4As shown in FIGS. 4 and 5, it further includes two sets of lateral parting structures 400. The two sets of lateral parting structures 400 are both arranged on the upper part of the rear mold base 300, and the two sets of lateral parting structures 400 are respectively located on both sides of the front mold core 240 and the rear mold core 310. Specifically, the lateral parting structure 400 includes a first mounting block 410, an inclined guide pillar 4101, a moving mold 420, a second mounting block 430, a pull rod 4301 and a pull block 4302. The moving mold 420 is slidably connected with the inclined guide pillar 4101, and one side of the moving mold 420 can abut against the plastic product 900. The pull block 4302 is mounted on the moving mold 420, and the pull block 4302 is connected with the steel wire 910 of the plastic product 900. Further, the lower end of the inclined guide pillar 4101 extends into the rear mold base 300, the first mounting block 410 is arranged at the upper end of the inclined guide pillar 4101, and the moving mold 420 is mounted between the rear mold base 300 and the first mounting block 410. Furthermore, the second mounting block 430 is mounted on one side of the moving mold 420, one end of the pull rod 4301 is connected with the second mounting block 430, and the other end is located inside the moving mold 420 and is movably connected with the pull block 4302. When the moving mold 420 moves along the inclined guide pillar 4101, it can drive the second mounting block 430 and the pull rod 4301 to move synchronously, so as to drive the pull block 4302 to perform an arc-shaped movement to pull out the steel wire 910.
[0034] Specifically, the working principle and process of the present utility model are as follows:
[0035] By arranging the lateral parting structure, when demolding, the pull block can pull out the steel wire from the rear mold core, so that the plastic product integrally formed with the steel wire can be smoothly demolded, thereby effectively avoiding damage or damage to the plastic product.
[0036] During demolding, the front bottom plate first moves upward. Since the front bottom plate and the front mold base are movably connected through the movable connection part, the front bottom plate first moves upward relative to the front mold base, and then the front bottom plate and the front mold base move upward synchronously. When the front bottom plate moves upward relative to the front mold base, the lower end of the clamping block disengages from the upper end of the movable module, thereby causing the movable module to move upward relative to the front mold core to facilitate the demolding operation of the plastic product. Then, the moving molds of the two sets of lateral parting structures move downward along the inclined guide pillars, so as to drive the pull blocks to perform arc-shaped movements to pull out the steel wires. While the moving molds move downward, the ejector pins move further upward to eject the plastic product. During mold closing, the above operations are performed reversely. By arranging the above structure, the plastic product can be smoothly demolded, thereby effectively avoiding damage or damage to the plastic product.
[0037] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.
Claims
1. An injection mold for the housing of a headphone that is easy to demold, characterized in that It includes a front bottom plate, a front mold base, a rear mold base, and a rear bottom plate arranged in sequence. The front mold base includes a front mold core, and the front mold core is arranged at the lower part of the front mold base. The rear mold base includes a rear mold core, and the rear mold core is arranged at the upper part of the rear mold base; It further includes two sets of lateral parting structures. Both sets of the lateral parting structures are arranged at the upper part of the rear mold base, and the two sets of the lateral parting structures are respectively located on both sides of the front mold core and the rear mold core. The lateral parting structure includes an inclined guide pillar, a moving mold, and a pulling block. The moving mold is slidably connected with the inclined guide pillar, and one side of the moving mold can abut against the plastic product. The pulling block is installed on the moving mold, and the pulling block is connected with the steel wire of the plastic product.
2. The injection mold for the headphone housing body that is easy to demold according to claim 1, characterized in that, The lateral parting structure further includes a first mounting block. The lower end of the inclined guide pillar extends into the rear mold base, and the first mounting block is arranged at the upper end of the inclined guide pillar. The moving mold is installed between the rear mold base and the first mounting block.
3. The injection mold for the outer shell of a headphone that is easy to demold according to claim 2, wherein, The lateral parting structure further includes a second mounting block and a pull rod. The second mounting block is installed on one side of the moving mold. One end of the pull rod is connected with the second mounting block, and the other end is located inside the moving mold and is movably connected with the pulling block.
4. The injection mold for the housing of the easy-to-demold headphone according to claim 1, characterized in that The front mold core further includes a front cooling pipeline, and the front cooling pipeline is installed inside the front mold core.
5. The injection mold for the headphone outer shell body that is easy to demold according to claim 1, characterized in that, The rear mold core further includes a rear cooling pipeline, and the rear cooling pipeline is installed inside the rear mold core.
6. The injection mold for the housing of the easy-to-demold headset according to claim 1, characterized in that, It further includes a support plate and ejector pins. The rear mold base, the mounting plate, the support plate, and the rear bottom plate are arranged from top to bottom in sequence. The ejector pins are installed on the mounting plate. The lower ends of the ejector pins pass through the mounting plate and abut against the upper end surface of the support plate. The upper ends of the ejector pins can extend between the rear mold core and the front mold core to eject the plastic product.
7. The injection mold for the headphone housing body that is easy to demold according to claim 6, characterized in that, It further includes square irons. The number of the square irons is two, and the two square irons are respectively arranged on both sides of the rear bottom plate. The support plate, the mounting plate, and the ejector pins are all arranged between the two square irons.
8. The injection mold for the headphone housing body that is easy to demold according to claim 1, characterized in that It further includes a movable connection part, a clamping block, and a movable module. The movable connection part includes a connection block. Both the front bottom plate and the front mold base are movably connected with the connection block. The clamping block is installed on the front bottom plate, and the lower end of the clamping block passes through the front bottom plate. The movable module passes through the front mold core, and the lower end of the movable module can abut against the plastic product, and the upper end is located inside the front mold base. The lower end of the clamping block can be engaged with the upper end of the movable module. The movable module has a compression spring. One end of the compression spring is connected with the movable module, and the other end is connected with the front mold core.