Injection mold for supporting piece of mobile phone support
The innovative mold design for phone holder supports addresses the high cost and instability issues by using a slanted top and hook mechanism for stable ejection, reducing costs and ensuring high-quality production.
Patent Information
- Application Number
- CN202422399407.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing mobile phone support support injection molds are difficult to release, and the existing solutions increase costs or have poor stability.
The oblique top structure is adopted, including an oblique top, a spring, a hook insert and an oblique top hook. The oblique top is slidably inserted in the oblique guide groove of the front die, the spring is arranged in the receiving hole, and the lower end of the oblique top hook can be slidably inserted in the sliding groove, and the mold release is achieved by inserting the projection in the receiving cavity to ensure that the oblique top can only slide in the left and right direction.
It realizes that there is no need for a front mold ejector plate, the thickness of the front mold side mold is thinned, the cost is reduced, the product stability is improved, and the yield is guaranteed.
Smart Images
Figure CN223099870U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding, in particular to an injection mold for a mobile phone bracket support member. Background Art
[0002] When driving a vehicle, a driver usually uses a mobile phone bracket to fix the mobile phone at the vehicle air outlet so as to observe the navigation information on the mobile phone. The mobile phone bracket generally includes an L-shaped support member for supporting the bottom and back of the mobile phone, a clamping member for clamping the mobile phone, and a clamping member for clamping the mobile phone. For the support member, it usually needs to have a certain strength. For example, Figures 1 to 3 discloses a mobile phone bracket support member, which has a perforated circular plate 1 extending in the horizontal direction and a vertical plate 3 vertically connected to the circular plate 1 and located on one side of the hole 2. To reduce weight without sacrificing the support strength, the middle part of the side of the vertical plate 3 facing the hole 2 is concave, forming an inverted buckle groove 4. During injection molding, the demolding direction of the inverted buckle groove 4 is perpendicular to the mold opening direction of the entire mobile phone bracket support member, and the demolding difficulty is great.
[0003] To solve this problem, a front mold inclined lifter is usually used in the market to form the inverted buckle groove. However, this solution requires adding a front mold ejector plate, which will greatly increase the ejection space. At the same time, the side mold thickness of the front mold is thickened, the sprue is long, the cost is high, and the unit price of the product is high. There is also a way to use a simple inclined lifter mold structure to form the inverted buckle groove. However, this solution only uses a spring to assist the movement of the inclined lifter. If the spring fails, the inclined lifter will follow the opening of the front mold, thus damaging the product, and the stability is poor, and the product yield cannot be guaranteed. Summary of the Utility Model
[0004] The purpose of the utility model is to solve one or more problems in the prior art, and provide an injection mold for a mobile phone bracket support member.
[0005] To achieve the above purpose, the technical solution provided by the utility model is an injection mold for a mobile phone bracket support member, including:
[0006] A rear mold;
[0007] A front mold that is movably arranged above the rear mold;
[0008] An inclined lifter structure for forming an inverted buckle groove of the mobile phone bracket support member. The inclined lifter structure includes an inclined lifter and a spring. The inclined lifter is slidably inserted into an inclined guide groove on the front mold. The spring is arranged in a receiving hole that is communicated with the inclined guide groove and located above the inclined guide groove. The upper and lower ends of the spring respectively abut against the bottom wall of the receiving hole and the top wall of the inclined lifter;
[0009] The inclined ejector structure further includes a hook insert and an inclined ejector hook. The hook insert is embedded in the upper surface of the rear mold. A sliding groove extending in the left - right direction is formed on the top surface of the hook insert. Crossbars are mounted on both side walls at the left end or the right end of the sliding groove. A receiving cavity is formed between the bottom of the crossbar and the bottom wall of the sliding groove. The upper end of the inclined ejector hook is fixed to the bottom of the inclined ejector. The lower end of the inclined ejector hook is slidably inserted into the sliding groove in the left - right direction. The lower end of the inclined ejector hook is also provided with a protruding portion extending into and matching the receiving cavity. During the up - and - down movement of the front mold, the protruding portion is inserted into the receiving cavity, enabling the inclined ejector to slide only in the left - right direction to achieve demolding.
[0010] Preferably, the length of the protruding portion in the left - right direction is less than or equal to the distance that the inclined ejector moves in the left - right direction during demolding. When the injection mold for the mobile phone bracket support is in the open - mold state, the protruding portion completely disengages from the receiving cavity.
[0011] Preferably, the upper end of the inclined ejector hook is provided with a pin hole penetrating the inclined ejector hook in the thickness direction. A pin matching the pin hole is connected to the bottom of the inclined ejector. The pin is inserted into the pin hole, fixing the upper end of the inclined ejector hook to the bottom of the inclined ejector.
[0012] Further preferably, the cross - sectional shape of the pin hole is rectangular.
[0013] Further preferably, a receiving groove is provided at the bottom of the inclined ejector. The upper end of the inclined ejector hook is embedded in the receiving groove, and the upper end surface of the inclined ejector hook abuts against the bottom wall of the receiving groove.
[0014] Preferably, the inclined ejector structure further includes a guiding bolt. The guiding bolt penetrates and is threadedly connected to the bottom wall of the receiving hole. The screw rod of the guiding bolt is inserted into the spring and coaxially inserted into the receiving hole to guide the spring.
[0015] Further preferably, a washer for the inclined ejector is connected to the top of the inclined ejector to abut against the lower end of the spring. The washer for the inclined ejector is locked to the top of the inclined ejector by a connecting bolt.
[0016] Further preferably, when the injection mold for the mobile phone bracket support is in the closed - mold state, the top of the connecting bolt abuts against the bottom of the guiding bolt.
[0017] Further preferably, the cross - sectional shape of the upper part of the inclined guide groove matches the shape of the washer for the inclined ejector to facilitate the washer for the inclined ejector to move up and down relative to the front mold following the inclined ejector.
[0018] Preferably, the bottom surface of the crossbar is an inclined surface, so that one side opening of the accommodation cavity is a flared opening, and the flared opening faces the protruding part.
[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0020] 1. Abandon the method of forming an undercut groove through the inclined core-pulling of the front mold. There is no need for a front mold ejector plate. The side mold thickness of the front mold is relatively thin, the sprue is short, the cost is low, the unit price of the product is low, and the overall benefit is high.
[0021] 2. By making the inclined core-pulling structure include a hook insert and an inclined core-pulling hook, the hook insert is embedded on the upper surface of the rear mold. A sliding groove extending in the left-right direction is opened on the top surface of the hook insert. Crossbars are erected on both side walls at the left or right end of the sliding groove. An accommodation cavity is formed between the bottom of the crossbar and the bottom wall of the sliding groove. The upper end of the inclined core-pulling hook is fixed to the bottom of the inclined core-pulling. The lower end of the inclined core-pulling hook is slidably inserted into the sliding groove in the left-right direction. A protruding part extending towards and matching the accommodation cavity is arranged at the lower end of the inclined core-pulling hook. During the up and down movement of the front mold, the protruding part is inserted into the accommodation cavity. Whether the spring fails or not, the inclined core-pulling can only slide in the left-right direction to realize demolding, and the product will not be damaged. The stability is good, and the product yield can be guaranteed. Description of the Drawings
[0022] Figure 1 is a three-dimensional schematic diagram of a mobile phone bracket support.
[0023] Figure 2 is Figure 1 the front view schematic diagram of
[0024] Figure 3 is Figure 2 the sectional view along the A-A direction in
[0025] Figure 4 is a three-dimensional schematic diagram of a preferred embodiment of the utility model.
[0026] Figure 5 is Figure 4 the top view schematic diagram of
[0027] Figure 6 is Figure 5 the sectional view along the B-B direction in , at this time, the injection mold is in the closed mold state.
[0028] Figure 7 is Figure 5 the sectional view along the B-B direction in , at this time, the injection mold is in the open mold state.
[0029] Figure 8 is Figure 6Schematic diagram of the three-dimensional assembly and decomposition of the middle inclined roof structure. The spring is hidden for easy observation.
[0030] Among them: 1. round plate with hole; 2. hole; 3. vertical plate; 4. undercut groove; 10. rear mold; 20. front mold; 21. oblique guide groove; 22. receiving hole; 31. oblique top; 311. pin; 312. receiving groove; 313. oblique top gasket; 314. connecting bolt; 32. spring; 33. hook insert; 331. sliding groove; 332. cross bar; 333. receiving cavity; 34. oblique top hook; 341. protrusion; 342. pin hole; 35. guide bolt. DETAILED DESCRIPTION
[0031] like Figures 4 to 8 As shown, the injection mold of the mobile phone holder support provided by the utility model comprises: a rear mold 10, a front mold 20 movably arranged above the rear mold 10, and a slanted roof structure for forming an undercut groove 4 of the mobile phone holder support, the slanted roof structure comprising a slanted roof 31, a spring 32, a hook insert 33, and a slanted roof hook 34, the slanted roof 31 is slidably inserted into the oblique guide groove 21 on the front mold 20, the spring 32 is arranged in a receiving hole 22 which is connected with the oblique guide groove 21 and is located above the oblique guide groove 21, the upper and lower ends of the spring 32 are respectively pressed against the bottom wall of the receiving hole 22 and the top wall of the slanted roof 11, the spring 32 has a tendency to drive the slanted roof 31 to slide downward, and the hook insert 33 is embedded in the slanted guide groove 21. On the upper surface of the rear mold 10, the top surface of the hook insert 33 is provided with a sliding groove 331 extending in the left and right directions, and a cross piece 332 is arranged on the two side walls of the left or right end of the sliding groove 331, and a receiving cavity 333 is formed between the bottom of the cross piece 332 and the bottom wall of the sliding groove 331, and the upper end of the inclined top hook 34 is fixed to the bottom of the inclined top 31, and the lower end of the inclined top hook 34 can be inserted into the sliding groove 331 so as to slide left and right, and the lower end of the inclined top hook 34 is also provided with a protrusion 341 extending toward the receiving cavity 333 and matching therewith, and during the up and down movement of the front mold 20, the protrusion 341 is inserted in the receiving cavity 333, so that the inclined top 31 can only slide in the left and right directions to achieve demolding.
[0032] The advantages of this setting are:
[0033] 1. Abandoning the method of forming an undercut groove by the inclined top of the front mold, no front mold ejector plate is required, the thickness of the front mold side mold is relatively thin, the material head is short, the cost is low, the unit price of the product is low, and the overall benefit is high.
[0034] 2. Regardless of whether the spring fails or not, the inclined top can only slide in the left and right directions to achieve demoulding without damaging the product. It has good stability and the product yield can be guaranteed.
[0035] In this embodiment, the length of the protruding portion 341 in the left - right direction is less than the distance that the lifter 31 moves left - right when demolding. When the injection mold for the mobile phone holder support is in the open - mold state, the protruding portion 341 completely disengages from the receiving cavity 333, facilitating the complete separation of the front and rear molds and facilitating the removal of the product (mobile phone holder support).
[0036] In this embodiment, a pin hole 342 penetrating the lifter hook 34 in the thickness direction is provided at the upper end of the lifter hook 34. A pin 311 matching the pin hole 342 is connected to the bottom of the lifter 31. The pin 311 is inserted into the pin hole 342, fixing the upper end of the lifter hook 34 to the bottom of the lifter 31.
[0037] To prevent the lifter hook 34 from rotating relative to the lifter 31, further, the cross - sectional shape of the pin hole 342 is rectangular. At the same time, a receiving groove 312 is provided at the bottom of the lifter 31. The upper end of the lifter hook 34 is embedded in the receiving groove 312, and the upper end surface of the lifter hook 34 abuts against the bottom wall of the receiving groove 312.
[0038] To avoid the spring 32 skewing during the telescopic process, in this embodiment, the lifter structure further includes a guiding bolt 35. The guiding bolt 35 penetrates and is threadedly connected to the bottom wall of the receiving hole 22. The screw rod of the guiding bolt 35 is inserted into the spring 32 and coaxially inserted into the receiving hole 22 to guide the spring 32.
[0039] Further, a lifter gasket 313 for abutting against the lower end of the spring 32 is connected to the top of the lifter 31. The lifter gasket 313 is locked to the top of the lifter 31 by a connecting bolt 314. The periphery of the lifter gasket 313 protrudes from the top surface of the lifter 31. For the convenience of its movement, the cross - sectional shape of the upper part of the inclined guiding groove 21 matches the shape of the lifter gasket 313, facilitating the lifter gasket 313 to move up and down relative to the front mold 20 following the lifter 31. At the same time, this design can also use the lifter gasket 313 to hold the lifter 31 in the open - mold state to prevent the lifter 31 from disengaging from the front mold 20.
[0040] Further, when the injection mold for the mobile phone holder support is in the closed - mold state, the top of the connecting bolt 314 abuts against the bottom of the guiding bolt 35.
[0041] To facilitate the insertion or disengagement of the protruding portion 341 into or from the receiving cavity 333, in this embodiment, the bottom surface of the cross - bar 332 is an inclined surface, making one side opening of the receiving cavity 333 a flared opening, and the flared opening faces the protruding portion 341.
[0042] The above embodiments are only used to illustrate the technical concept and features of the present utility model. The purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. An injection mold for a mobile phone holder support member, comprising: A rear mold; A front mold that is movably arranged above the rear mold in the up and down direction; A lifter structure for forming an undercut groove of the mobile phone holder support member. The lifter structure includes a lifter and a spring. The lifter is slidably inserted into an inclined guide groove on the front mold. The spring is arranged in a receiving hole that communicates with the inclined guide groove and is located above the inclined guide groove. The upper and lower ends of the spring respectively abut against the bottom wall of the receiving hole and the top wall of the lifter; It is characterized in that: The lifter structure further includes a hook insert and a lifter hook. The hook insert is embedded in the upper surface of the rear mold. A sliding groove extending in the left - right direction is formed on the top surface of the hook insert. Cross bars are arranged on both side walls at the left end or the right end of the sliding groove. A receiving cavity is formed between the bottom of the cross bars and the bottom wall of the sliding groove. The upper end of the lifter hook is fixed to the bottom of the lifter. The lower end of the lifter hook is slidably inserted into the sliding groove. The lower end of the lifter hook is further provided with a protruding portion extending into and matching the receiving cavity. During the up and down movement of the front mold, the protruding portion is inserted into the receiving cavity, enabling the lifter to slide only in the left - right direction to achieve demolding.
2. The injection mold for the mobile phone bracket support according to claim 1, wherein: The length of the protruding portion in the left - right direction is less than or equal to the distance that the lifter moves left and right during demolding. When the injection mold for the mobile phone holder support member is in the open - mold state, the protruding portion completely disengages from the receiving cavity.
3. The injection mold for the mobile phone holder support according to claim 1, characterized in that: The upper end of the lifter hook is provided with a pin hole that penetrates the lifter hook in the thickness direction. A pin matching the pin hole is connected to the bottom of the lifter. The pin is inserted into the pin hole, fixing the upper end of the lifter hook to the bottom of the lifter.
4. The injection mold for the mobile phone holder support according to claim 3, characterized in that: The cross - sectional shape of the pin hole is rectangular.
5. The injection mold for the mobile phone holder support according to claim 3, wherein: A receiving groove is provided at the bottom of the lifter. The upper end of the lifter hook is embedded in the receiving groove, and the upper surface of the lifter hook abuts against the bottom wall of the receiving groove.
6. The injection mold for the mobile phone bracket support according to claim 1, characterized in that: The lifter structure further includes a guiding bolt. The guiding bolt penetrates and is threadedly connected to the bottom wall of the receiving hole. The screw of the guiding bolt is inserted into the spring and coaxially arranged in the receiving hole to guide the spring.
7. The injection mold for the mobile phone holder support according to claim 6, wherein: A lifter gasket for abutting against the lower end of the spring is connected to the top of the lifter. The lifter gasket is locked to the top of the lifter by a connecting bolt.
8. The injection mold for the mobile phone holder support according to claim 7, characterized in that: When the injection mold for the mobile phone holder support member is in the closed - mold state, the top of the connecting bolt abuts against the bottom of the guiding bolt.
9. The injection mold for the mobile phone holder support according to claim 6, wherein: The cross - sectional shape of the upper part of the inclined guide groove matches the shape of the lifter gasket to facilitate the lifter gasket to move up and down relative to the front mold following the lifter.
10. The injection mold for the mobile phone holder support according to claim 1, wherein: The bottom surface of the cross bar is an inclined surface, making one side opening of the receiving cavity a flared opening, and the flared opening faces the protruding portion.