Injection mold of high-precision sliding block pitched roof ejection structure
By designing a high-precision slider inclined ejection structure in the injection mold, using inclined slide grooves and guide springs to ensure stable contact of the inclined rod, and combining with a limit structure to control the movement of the slider, the problem of product damage caused by inconsistent angles during the traditional mold demoulding process is solved, achieving high-quality and efficient demoulding effects.
Patent Information
- Application Number
- CN202422422381.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-30
AI Technical Summary
When traditional injection molds are used to process complex structures, inconsistent angles of the diagonal rods can easily lead to uneven force during the demoulding process, resulting in quality problems such as surface scratches, whitening, deformation, or cracking of the product.
A high-precision slider inclined ejection structure is designed, which includes a slider core, an inclined rod, an inclined ejector fixing seat, an inclined guide rod, a slider structure and a limiting structure. The sliding groove and guide spring with consistent inclination angle are used to ensure that the inclined rod maintains stable contact and precise exit during the demolding process. Combined with the limiting structure to limit the horizontal sliding direction of the slider, the uniformity and smoothness of the demolding are achieved.
It effectively solves the problem of product damage caused by angle deviation during the demoulding process of traditional molds, improves product quality and production efficiency, and ensures the accuracy and smoothness of the demoulding process.
Smart Images
Figure CN223369962U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of molds, in particular to an injection mold with a high-precision slider and an inclined ejection structure. Background Art
[0002] In the injection mold industry, the production of high-precision products places extremely high demands on mold design and manufacturing. Especially in the production of complex injection molded parts, such as those with undercuts and embedded components, the design of the mold's demoulding mechanism is particularly important.
[0003] Traditional injection molds often use simple ejector mechanisms or slider mechanisms to handle these complex structures. However, these mechanisms are prone to uneven force or inaccurate motion trajectories during the demolding process due to inconsistent angles of the inclined rods when exiting, resulting in quality problems such as dragging, whitening, deformation, and even cracking on the product surface. Utility Model Content
[0004] In view of the above situation, it is necessary to provide an injection mold of a high-precision slider bevel ejection structure that solves at least one of the above problems, including a slider core, a bevel rod, a bevel fixed seat, a bevel guide rod, a slider structure and a limiting structure. The slider core and the bevel fixed seat are provided with a slide groove with a consistent inclination angle, one end of the bevel rod is provided with an undercut, and the end of the bevel rod provided with the undercut is provided in the slide groove of the slider core, and the undercut is in contact with the wall surface of the slider core, and the other end of the bevel rod is provided in the slide groove of the bevel fixed seat, the bevel guide rod sleeve is provided with a guide spring, and the two ends of the bevel guide rod are respectively abutted against the bevel fixed seat and the slider structure, and the limiting structure is used to limit the horizontal sliding direction of the slider structure.
[0005] Preferably, in the mold closing state, the inclined guide rod and the sliding groove have the same inclination angle.
[0006] Preferably, the inclination angle of the chute is 6° to 20°.
[0007] Preferably, the slider structure includes a sliding block, an inclined guide column fixing block and an inclined guide column, the sliding block is slidably arranged in the mold, one end of the inclined guide rod abuts against the sliding block, the inclined guide column fixing block is arranged on the sliding block, the inclined guide column is obliquely passed through the sliding block and the inclined guide column fixing block, and the sliding block is provided with a limiting hole connected to the inclined guide column.
[0008] Preferably, the limiting structure includes a sliding block, a meson, a limiting spring and a limiting rod, the sliding block is arranged on the mold, the limiting rod is passed through the sliding block, one end of the limiting rod is arranged in the limiting hole and abuts against the inclined guide column, the meson is sleeved on the other end of the limiting rod, the limiting spring is sleeved on the limiting rod, and the two ends of the limiting spring respectively abut against the sliding block and the meson. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] 1. Slider core; 2. Inclined rod; 21. Undercut; 3. Inclined top fixing seat; 4. Inclined guide rod; 41. Guide spring; 5. Slider structure; 51. Sliding block; 52. Inclined guide column fixing block; 53. Inclined guide column; 54. Limiting hole; 6. Limiting structure; 61. Sliding block; 62. Meson; 63. Limiting spring; 64. Limiting rod; 7. Slide groove.
[0010] Figure 1 It is a structural schematic diagram of an injection mold of a high-precision slider inclined ejection structure according to an embodiment of the utility model.
[0011] Figure 2 It is a structural schematic diagram of an injection mold of a high-precision slider inclined ejection structure according to an embodiment of the utility model.
[0012] Figure 3 It is an exploded view of the slider core, the inclined rod, the inclined top fixing seat and the inclined guide rod of an embodiment of the utility model.
[0013] Figure 4 It is a structural schematic diagram of the slider structure and the limiting structure of an embodiment of the utility model. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the following is a further detailed description of the injection mold of the high-precision slider bevel ejection structure of the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0015] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "center", "longitudinal", "lateral", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
[0016] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0017] See Figures 1 to 4 The injection mold of the high-precision slider inclined top ejection structure of the utility model embodiment includes a slider core 1, an inclined rod 2, an inclined top fixing seat 3, an inclined guide rod 4, a slider structure 5 and a limiting structure 6. The slider core 1 and the inclined top fixing seat 3 are provided with a slide groove 7 with a consistent inclination angle, one end of the inclined rod 2 is provided with an undercut 21, and one end of the inclined rod 2 provided with the undercut 21 is provided in the slide groove 7 of the slider core 1, and the undercut 21 abuts against the wall surface of the slider core 1, and the other end of the inclined rod 2 is provided in the slide groove 7 of the inclined top fixing seat 3, the inclined guide rod 4 is provided with a guide spring 41, and the two ends of the inclined guide rod 4 are respectively abutted against the inclined top fixing seat 3 and the slider structure 5, and the limiting structure 6 is used to limit the horizontal sliding direction of the slider structure 5.
[0018] In the above embodiment, the mold utilizes a chute 7, with the same angle of inclination, on the slider core 1 and the inclined top mount 3, as a track for the movement of the inclined rod 2. An undercut 21 is designed at one end of the inclined rod 2, allowing it to fit tightly against the slider core 1 during movement. This ensures stable contact during demolding, effectively preventing mold damage or product defects caused by poor sliding.
[0019] The inclined guide rod 4, a key component connecting the inclined top mount 3 and the slider structure 5, is fitted with a guide spring 41. During mold clamping, the spring is compressed by the clamping force. When the mold begins to open, the inclined top mount 3 remains stationary, while the slider structure 5 shifts to one side under the spring's reaction force. This allows the inclined rod 2 to smoothly exit along the chute 7 until it completely disengages the undercut 21 on the product. Throughout this process, the angle of the inclined rod 2's exit remains consistent, ensuring a precise and smooth demolding motion.
[0020] In addition, the limiting structure 6 effectively limits the horizontal sliding direction of the slider structure 5, preventing mold damage or operation accidents caused by excessive sliding or deviation.
[0021] To sum up, the injection mold with a high-precision slider inclined ejection structure, through the inclined slide groove 7, inclined rod 2, guide spring 41 and limiting structure 6, achieves a uniform exit angle of the inclined rod when the mold is demolded after injection molding, effectively solving the problems of dragging, whitening, etc. that are prone to occur in the demolding process of traditional molds, and improving product quality and production efficiency.
[0022] See Figures 1 to 4 In another embodiment, in the mold closing state, the inclined guide rod 4 and the sliding groove 7 have the same inclination angle.
[0023] In the above embodiment, the inclined guide rod 4 serves as the key transmission component connecting the inclined top mount 3 and the slider structure 5. Its tilt angle matches that of the chute 7, allowing the inclined rod 2 to move smoothly along a predetermined trajectory when influenced by the guide spring 41 or the mold opening movement. This consistency not only simplifies the mold's structural design but also improves the smoothness of the demolding process, avoiding mold jamming or damage caused by angular deviation, thereby ensuring the quality and production efficiency of the injection molded product.
[0024] See Figures 1 to 4 In another embodiment, the inclination angle of the chute 7 is 6° to 20°.
[0025] In the above embodiment, the inclination angle of the chute 7 directly affects the trajectory and speed of the diagonal rod 2 during demolding. A relatively small angle of 6° ensures smooth movement but reduces demolding efficiency; a larger angle of 20° speeds demolding but increases mechanical stress on the mold and product. Therefore, the inclination angle range of 6° to 20° is chosen to achieve the optimal balance between stability and efficiency, and the angle can be adjusted based on the specific product.
[0026] See Figures 1 to 4In another embodiment, the slider structure 5 includes a sliding block 51, an inclined guide column fixing block 52 and an inclined guide column 53. The sliding block 51 is slidably arranged in the mold, one end of the inclined guide rod 4 abuts against the sliding block 51, the inclined guide column fixing block 52 is arranged on the sliding block 51, and the inclined guide column 53 is obliquely penetrated through the sliding block 51 and the inclined guide column fixing block 52. The sliding block 51 is provided with a limiting hole 54 connected to the inclined guide column 53.
[0027] In the above embodiment, the sliding block 51 is disposed inside the mold and can slide along a preset track.
[0028] The inclined guide pin 53 drives the sliding block 51, with one end of the guide pin tightly contacting the sliding block 51. When the mold is opened or closed, the inclined guide pin 53 tilts with the mold movement. This tilting motion is converted into linear or curved motion of the sliding block 51 through its contact point with the sliding block 51, thereby achieving demolding.
[0029] The inclined guide post fixing block 52 is mounted on the sliding block 51, providing a stable base for the inclined guide post 53. The inclined guide post 53 extends obliquely through the sliding block 51 and the fixing block, ensuring the stability of the inclined guide post 53 and making the entire slider structure 5 more compact and efficient. The slider structure 5 achieves precise demolding of complex structures within the mold through the precise coordination of the sliding block 51, the inclined guide post fixing block 52, and the inclined guide post 53.
[0030] See Figures 1 to 4 In another embodiment, the limiting structure 6 includes a sliding block 61, a meson 62, a limiting spring 63 and a limiting rod 64, the sliding block is arranged on the mold, the limiting rod 64 is passed through the sliding block, one end of the limiting rod 64 is arranged in the limiting hole 54 and contacts the inclined guide column 53, the meson 62 is sleeved on the other end of the limiting rod 64, the limiting spring 63 is sleeved on the limiting rod 64, and the two ends of the limiting spring 63 respectively contact the sliding block 61 and the meson 62.
[0031] In the above embodiment, the slide block 61 serves as the base of the limiting structure 6, mounted on the mold, providing support and positioning for the limiting rod 64. The limiting rod 64 extends through the slide block 61, with one end extending into the limiting hole 54 in the slider, interfering with the inclined guide post 53 and thus directly controlling the movement of the slider. This direct contact ensures that the limiting rod 64 can instantly sense and respond to the movement of the inclined guide post 53, achieving precise control.
[0032] The meson 62 is mounted on the other end of the limit rod 64, which not only fixes the limit spring 63, but also provides a buffering and reset function for the limit rod 64 through its interaction with the limit spring 63. The limit spring 63 is mounted on the limit rod 64, and its two ends respectively contact the sliding block 61 and the meson 62, forming an elastic system. This system can absorb and store energy during the movement of the slider, and release energy when needed, to push or limit the movement of the slider, ensuring its stable operation within a predetermined range. The limit structure 6 achieves precise control and stable guarantee of the slider movement through the precise coordination of the sliding block 61, the meson 62, the limit spring 63 and the limit rod 64, effectively improving the overall performance and reliability of the mold.
[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. An injection mold with a high-precision slider and an inclined ejection structure, characterized in that: The cam is adapted to engage the guide rails of the sliding member and engage with the guide rails of the sliding member so as to engage with the guide rails of the sliding member.
2. The injection mold of the high-precision slider inclined ejection structure according to claim 1, characterized in that: In the mold closing state, the inclined guide rod and the sliding groove have the same inclination angle.
3. The injection mold of the high-precision slider inclined ejection structure according to claim 2, characterized in that: The inclination angle of the chute is 6° to 20°.
4. The injection mold of the high-precision slider inclined ejection structure according to claim 1, characterized in that: The slider structure includes a sliding block, an inclined guide column fixing block and an inclined guide column. The sliding block is slidably arranged in the mold, one end of the inclined guide rod abuts against the sliding block, the inclined guide column fixing block is arranged on the sliding block, and the inclined guide column is obliquely passed through the sliding block and the inclined guide column fixing block. The sliding block is provided with a limiting hole connected to the inclined guide column.
5. The injection mold of the high-precision slider inclined ejection structure according to claim 4, characterized in that: The limiting structure includes a sliding block, a meson, a limiting spring and a limiting rod. The sliding block is arranged on the mold, the limiting rod is passed through the sliding block, one end of the limiting rod is arranged in the limiting hole and abuts against the inclined guide column, the meson is sleeved on the other end of the limiting rod, the limiting spring is sleeved on the limiting rod, and the two ends of the limiting spring respectively abut against the sliding block and the meson.