Injection mold easy to open

Abstract

The utility model relates to the technical field of injection molds, and discloses an easy-to-open injection mold, which comprises a mold core, a mold core, a mold opening mechanism and a mold opening mechanism, the sliding block assembly comprises a first sliding block and a second sliding block which are movably arranged on the mold core, and the first sliding block and the second sliding block are oppositely arranged and are respectively provided with a convex part; the insert assembly is movably arranged between the first sliding block and the second sliding block and is provided with a first moving position and a second moving position; when the insert assembly is located at the first moving position, the insert assembly makes contact with the first sliding block and the second sliding block and enables the protruding part to stretch into the forming cavity, and when the insert assembly is located at the second moving position, the insert assembly is separated from the first sliding block and the second sliding block and enables the protruding part to retreat out of the forming cavity. The injection mold easy to open is simple in structure, and efficient, stable and synchronous core pulling of the multiple sliding blocks can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold that is easy to mold open. Background Art

[0002] In the current technical field of injection molds, especially in the process of molding plastic parts with complex structures, how to efficiently and accurately realize the opening and closing of the mold and the core-pulling action of the slider is a key technical challenge. In the traditional design of injection molds, for application scenarios with multiple slider core-pulling mechanisms, complex oblique or spiral core-pulling structures are often relied on to realize the synchronous extraction of the sliders. This not only increases the manufacturing difficulty and cost of the mold, but also may lead to problems such as poor mold opening and closing, difficult maintenance, and extended molding cycle. Summary of the Utility Model

[0003] The purpose of the utility model is to address the above problems in the prior art, and provide an injection mold that is easy to mold open, has a simple structure, and can realize the efficient and stable synchronous core-pulling of multiple sliders.

[0004] The purpose of the utility model can be achieved by the following technical solutions. An injection mold that is easy to mold open includes:

[0005] A mold core, in which a molding cavity is provided.

[0006] A slider assembly, which includes a first slider and a second slider movably arranged on the mold core. The first slider and the second slider are arranged oppositely, and each has a convex part that can extend into the molding cavity.

[0007] An insert block assembly, which is movably arranged between the first slider and the second slider and has a first moving position and a second moving position. When the insert block assembly is in the first moving position, the insert block assembly contacts the first slider and the second slider respectively, and makes the convex part extend into the molding cavity. When the insert block assembly is in the second moving position, the insert block assembly separates from the first slider and the second slider respectively, and makes the convex part withdraw from the molding cavity.

[0008] In the above injection mold that is easy to mold open, the insert block assembly includes a moving part movably arranged between the first slider and the second slider and perpendicular to the first slider and the second slider. When the moving part is in the first moving position, the moving part is clamped with the first slider and the second slider respectively, and makes the convex part extend into the molding cavity. When the moving part is in the second moving position, the first moving block separates from the first slider and the second slider respectively, and makes the convex part withdraw from the molding cavity.

[0009] In the above-mentioned injection mold that is easy to mold, the moving part has a first clamping groove and a second clamping groove. When the moving part is in the first moving position, the first slider is clamped into the first clamping groove, and the second slider is clamped into the second clamping groove. When the moving part is in the second moving position, the first slider is outside the first clamping groove, the second slider is outside the second clamping groove, and the gaps between the two ends of the first clamping groove and the second clamping groove are not equal.

[0010] In the above-mentioned injection mold that is easy to mold, both the first clamping groove and the second clamping groove are provided with two groups and are arranged symmetrically up and down. The first slider has a first clamping portion that is respectively clamped into the two groups of the first clamping grooves, and the second slider has a second clamping portion that is respectively clamped into the two groups of the second clamping grooves to form a clamping force on the moving part.

[0011] In the above-mentioned injection mold that is easy to mold, the insert block assembly further includes a support seat detachably arranged on the mold core. The support seat is provided with a guide groove perpendicular to the first slider and the second slider, and the moving part includes a sliding portion embedded in the guide groove and slidably connected to the guide groove.

[0012] In the above-mentioned injection mold that is easy to mold, the guide groove is in a cross shape and forms a longitudinal limit on the sliding portion embedded in the guide groove.

[0013] In the above-mentioned injection mold that is easy to mold, it includes a driving structure. The driving structure includes a driving rod movably connected to the moving part. The driving rod is used to drive the moving part to move between the first moving position and the second moving position along the length direction of the guide groove.

[0014] In the above-mentioned injection mold that is easy to mold, the driving structure further includes a power source connected to the driving rod. The driving rod includes a first connecting portion connected to the power source and a second connecting portion movably extending into the moving part. A connecting groove for the second connecting portion to extend into is provided on the moving part.

[0015] In the above-mentioned injection mold that is easy to mold, the second connecting portion is obliquely connected to the first connecting portion and is inclined towards the slider assembly. The connecting groove is a straight groove arranged obliquely, and the inclination direction of the connecting groove is the same as the inclination direction of the second connecting portion.

[0016] In the above-mentioned injection mold that is easy to mold, a ejector pin structure is further included. The ejector pin structure includes a first ejector pin and a second ejector pin that are movably arranged on the mold core and extend into the molding cavity. The first ejector pin is clamped with the first slider, and the first slider forms a partial isolation with the product in the molding cavity. The second ejector pin is clamped with the second slider, and the second slider forms a partial isolation with the product in the molding cavity.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging a movable insert assembly between two relatively arranged first sliders and second sliders, the first slider and the second slider are driven to perform core pulling simultaneously by moving, realizing rapid and stable core pulling of multiple sliders during the mold opening process, not only effectively simplifying the overall structure of the mold, but also greatly improving the opening and closing efficiency and stability of the mold. Description of the Drawings

[0018] Figure 1 It is a partial structural schematic diagram of the injection mold according to the embodiment of the present utility model.

[0019] Figure 2 It is an exploded view of the partial structure of the injection mold according to the embodiment of the present utility model.

[0020] Figure 3 It is Figure 2 The enlarged view at A in

[0021] Figure 4 It is a partial structural sectional view of the injection mold according to the embodiment of the present utility model.

[0022] Figure 5 It is a schematic diagram of the connection structure between the second mold core, the slider assembly and the insert assembly in the embodiment of the present utility model.

[0023] Figure 6 It is Figure 5 The partial exploded view of

[0024] Figure 7 It is an exploded view of the injection mold according to the embodiment of the present utility model.

[0025] In all the attached drawings, the same reference numerals denote the same technical features, specifically: 100, fixed template; 200, movable template; 300, mold core; 301, first mold core; 302, second mold core; 310, molding cavity; 400, slider assembly; 410, first slider; 411, first clamping portion; 420, second slider; 421, second clamping portion; 430, convex portion; 500, insert block assembly; 510, moving member; 511, first card slot; 512, second card slot; 513, sliding portion; 514, connecting groove; 520, support base; 521, guiding groove; 522, limiting groove; 600, driving rod; 610, first connecting portion; 620, second connecting portion; 700, ejector pin structure; 710, first ejector pin; 720, second ejector pin; 800, product. Detailed implementation manners

[0026] The following are specific embodiments of the present invention and, in conjunction with the attached drawings, further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0027] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.

[0028] As Figures 1 to 7 shown, an injection mold that is easy to open the mold includes a fixed template 100, a movable template 200, a mold core 300, a slider assembly 400, an insert block assembly 500, a driving rod 600, and an ejector pin structure 700.

[0029] As Figures 1 to 7 shown, an injection mold that is easy to open the mold includes:

[0030] A mold core 300, and a molding cavity 310 is provided in the mold core 300;

[0031] A slider assembly 400, which includes a first slider 410 and a second slider 420 movably provided on the mold core 300. The first slider 410 and the second slider 420 are arranged relatively and respectively have convex portions 430 that can extend into the molding cavity 310;

[0032] The insert component 500 is movably disposed between the first slider 410 and the second slider 420, and has a first moving position and a second moving position; when the insert component 500 is in the first moving position, the insert component 500 contacts the first slider 410 and the second slider 420 respectively, and makes the convex portion 430 extend into the molding cavity 310. When the insert component 500 is in the second moving position, the insert component 500 is separated from the first slider 410 and the second slider 420 respectively, and makes the convex portion 430 withdraw from the molding cavity 310. Through the design and position layout of a single insert component 500, it drives the first slider and the second slider to perform core pulling simultaneously by moving, realizing the fast and stable core pulling of multiple sliders during the mold opening process, which not only effectively simplifies the overall structure of the mold, but also greatly improves the opening and closing efficiency and stability of the mold.

[0033] As Figure 4 、 Figure 7 shown, in this embodiment, the injection mold includes a fixed mold plate 100, a mold core 300 and a moving mold plate 200 arranged in sequence from top to bottom. The mold core 300 includes a first mold core 301 disposed on the fixed mold plate 100 and a second mold core 302 disposed on the moving mold plate 200, and the first mold core 301 and the second mold core 302 cooperate to form a molding cavity 310 after being enclosed.

[0034] As Figures 1 to 6 shown, to meet the molding requirements of the product 800, in this embodiment, a slider assembly 400 is provided on the mold core 300. The slider assembly 400 includes a first slider 410 and a second slider 420 that are movably disposed on the mold core 300 and are arranged oppositely. The first slider 410 and the second slider 420 respectively have convex portions 430 that can extend into the molding cavity 310 to cooperate with the product 800 to form corresponding depressions.

[0035] In this embodiment, the first slider 410 and the second slider 420 are arranged flush, and the convex portion 430 is a circular column. By making the convex portion 430 extend into the molding cavity 310, the product 800 can form a corresponding round hole structure.

[0036] To facilitate the ejection mechanism to smoothly eject the product 800 out of the mold, in this embodiment, an insert component 500 is provided. The insert component 500 forms a moving fit with the slider assembly 400 and moves the first slider 410 and the second slider 420, so that the convex portions 430 on the first slider 410 and the second slider 420 can be withdrawn from the molding cavity 310, so that the ejection mechanism can smoothly push the product 800.

[0037] In this embodiment, the insert component 500 is movably disposed between the first slider 410 and the second slider 420, and has a first moving position and a second moving position. When the insert component 500 is in the first moving position, the insert component 500 is in contact with the first slider 410 and the second slider 420 respectively, and the convex portion 430 extends into the molding cavity 310 to meet the injection molding requirements of the product 800. When the insert component 500 is in the second moving position, the insert component 500 is separated from the first slider 410 and the second slider 420 respectively, and the convex portion 430 withdraws from the molding cavity 310, realizing the core pulling of the slider component 400. By using only a single insert component 500, the simultaneous core pulling of the double sliders is realized, effectively simplifying the mold structure, reducing the complexity and cost of the traditional multi-oblique core pulling structure, and improving the manufacturing efficiency and maintenance convenience of the mold.

[0038] Preferably, in this embodiment, the first moving position is the initial position of the insert component 500 before mold opening, and the second moving position is the designated position where the insert component 500 extends when the mold is opened.

[0039] In this embodiment, the insert component 500 includes a moving member 510 that is movably disposed between the first slider 410 and the second slider 420 and is perpendicular to the first slider 410 and the second slider 420. When the moving member 510 is in the first moving position, the moving member 510 is clamped to the first slider 410 and the second slider 420 respectively, and the convex portion 430 extends into the molding cavity 310. When the moving member 510 is in the second moving position, the first moving block is separated from the first slider 410 and the second slider 420 respectively, and the convex portion 430 withdraws from the molding cavity 310. Through the vertical design of the moving member 510 and its precise clamping mechanism with the two sliders, the coordinated operation of the double sliders is realized, solving the problem of how to effectively control the synchronous core pulling of the two sliders in a limited space and avoiding the possible problems of slider non-synchronization or interference in the traditional design. Furthermore, the stability and consistency of the core pulling process are enhanced, the operation process is simplified, and the mold opening efficiency is improved.

[0040] In this embodiment, the moving member 510 is in the shape of a rectangular strip. One end of the moving member 510 close to the first slider 410 and the second slider 420 has a first card slot 511 and a second card slot 512. When the moving member 510 is in the first moving position, the first slider 410 is snapped into the first card slot 511, and the second slider 420 is snapped into the second card slot 512. When the moving member 510 is in the second moving position, the first slider 410 is outside the first card slot 511, and the second slider 420 is outside the second card slot 512, and the gaps between the two ends of the first card slot 511 and the second card slot 512 are not equal. Through the snap-fit of the first card slot 511 and the second card slot 512 with the first slider 410 and the second slider 420, the stability and accuracy of the first slider 410 and the second slider 420 in the fixed and moving states are ensured, and the problem of possible shaking or jamming of the slider assembly 400 during the core-pulling process is specifically solved, ensuring the reliability of the long-term use of the mold and the quality consistency of the plastic parts. Moreover, due to the distance difference between the two ends of the first card slot 511 and the second card slot 512, the movement of the first slider 410 and the second slider 420 is a gradual sliding rather than an instantaneous movement, further ensuring the smoothness of the core-pulling of the slider assembly 400.

[0041] Preferably, in this embodiment, the first card slot 511 and the second card slot 512 are arranged in a shape of an inverted "V", and the gap between the two close to one end of the slider assembly 400 is smaller than the gap between the two far from the other end of the slider assembly 400. This effectively optimizes the distribution of the drawing force of the slider assembly 400, making the core-pulling action smoother.

[0042] Preferably, two sets of the first card slot 511 and the second card slot 512 are provided and arranged symmetrically up and down. The first slider 410 has a first snap-in portion 411 that is respectively snapped into the two sets of the first card slot 511, and the second slider 420 has a second snap-in portion 421 that is respectively snapped into the two sets of the second card slot 512 to form a clamping on the moving member 510. This effectively expands the contact area between the moving member 510 and the first slider 410 and the second slider 420, ensures the stability of the connection among the three, and further ensures the stability of the movement of the first slider 410 and the second slider 420.

[0043] In this embodiment, the insert block assembly 500 further includes a support seat 520 detachably provided on the mold core 300. A guiding groove 521 perpendicular to the first slider 410 and the second slider 420 is provided on the support seat 520, and the moving member 510 includes a sliding portion 513 embedded in the guiding groove 521 and slidably connected to the guiding groove 521. The design of the support seat 520 and the guiding groove 521 provides a clear guiding path for the moving member 510, solves the problems of offset and insufficient guiding of the moving member 510 during the sliding process, not only improves the positioning accuracy of the moving member 510, but also enhances the stability of the overall structure.

[0044] In this embodiment, the guiding groove 521 is in a cross shape with three open sides, and forms a longitudinal limit for the sliding part 513 embedded in the guiding groove 521. This design ensures the stable sliding of the moving part 510 only in the horizontal direction, effectively avoiding unnecessary movement of the moving part 510 during the opening and closing of the mold, and improving the reliability of the mold operation.

[0045] In this embodiment, a driving structure is further provided. The driving structure includes a driving rod 600 movably connected to the moving part 510. The driving rod 600 is used to drive the moving part 510 to move between a first moving position and a second moving position along the length direction of the guiding groove 521. By directly driving the moving part 510 with the driving rod 600, automatic control is achieved, the operation is simplified, and the operation efficiency and response speed of the mold are improved.

[0046] The driving structure further includes a power source (not shown in the figure) connected to the driving rod 600. The driving rod 600 includes a first connecting part 610 connected to the power source and a second connecting part 620 movably extending into the moving part 510. A connecting groove 514 for the second connecting part 620 to extend into is provided on the moving part 510. When the first connecting part 610 moves under the drive of the power source, the second connecting part 620 can be driven to move, and the moving part 510 is pushed through the cooperation between the second connecting part 620 and the connecting groove 514.

[0047] In this embodiment, the second connecting part 620 is obliquely connected to the first connecting part 610 and is inclined towards the slider assembly 400. The connecting groove 514 is a linearly arranged inclined groove, and the inclined direction of the connecting groove 514 is the same as that of the second connecting part 620. When the first connecting part 610 moves vertically under the drive of the power source, the second connecting part 620 can abut against the side wall of the connecting groove 514 and move along the length direction of the connecting groove 514, so that the moving part 510 moves under the thrust of the second connecting part 620. It effectively ensures the smooth transmission of force during the driving process, reduces mechanical losses, and improves the stability and service life of the system.

[0048] Preferably, in this embodiment, a limiting groove 522 is further provided at the positions of the support seat 520 and the template corresponding to the connecting groove 514. The limiting groove 522 is communicated with the connecting groove 514, which provides a moving space for the second connecting part 620 and can prevent the second connecting part 620 from moving beyond the stroke, further ensuring the effectiveness and stability of the movement of the moving part 510.

[0049] In this embodiment, a top column structure 700 is further included. The top column structure 700 includes a first top column 710 and a second top column 720 that are vertically and movably arranged on the mold core 300 and extend into the molding cavity 310. The first top column 710 is clamped with the first slider 410, and the first slider 410 forms a partial isolation with the product 800 in the molding cavity 310. The second top column 720 is clamped with the second slider 420, and the second slider 420 forms a partial isolation with the product 800 in the molding cavity 310. By locally isolating the slider from the molded product 800, the demolding process is further simplified, and the risk of deformation or damage to the product 800 is reduced.

[0050] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. 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.

[0052] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. An injection mold that is easy to open, characterized in that: include: A mold core, wherein a molding cavity is provided in the mold core; A slider assembly, the slider assembly comprising a first slider and a second slider movably disposed on the mold core, the first slider and the second slider being arranged opposite to each other and respectively having a convex portion that can extend into the molding cavity; An insert assembly is movably arranged between the first slider and the second slider, and has a first moving position and a second moving position; when the insert assembly is in the first moving position, the insert assembly contacts the first slider and the second slider respectively, and the protrusion extends into the molding cavity; when the insert assembly is in the second moving position, the insert assembly is separated from the first slider and the second slider respectively, and the protrusion withdraws from the molding cavity.

2. The easy-to-open injection mold according to claim 1, characterized in that: The insert assembly includes a moving member movably arranged between the first slider and the second slider and perpendicular to the first slider and the second slider; when the moving member is in the first moving position, the moving member is respectively engaged with the first slider and the second slider, and the protrusion extends into the molding cavity; when the moving member is in the second moving position, the moving member is separated from the first slider and the second slider, and the protrusion withdraws from the molding cavity.

3. The easy-to-open injection mold according to claim 2, characterized in that: The moving member has a first slot and a second slot. When the moving member is in the first moving position, the first slider is inserted into the first slot and the second slider is inserted into the second slot. When the moving member is in the second moving position, the first slider is outside the first slot and the second slider is outside the second slot, and the gaps between the two ends of the first slot and the second slot are not equal.

4. The easy-to-open injection mold according to claim 3, characterized in that: The first card slot and the second card slot are each provided with two groups, and are arranged symmetrically up and down, and the first slider has a first clamping portion that is respectively clamped into the two groups of the first card slots, and the second slider has a second clamping portion that is respectively clamped into the two groups of the second card slots to clamp the moving part.

5. The easy-to-open injection mold according to claim 2, characterized in that: The insert assembly also includes a support seat detachably arranged on the mold core, the support seat is provided with a guide groove arranged perpendicular to the first slider and the second slider, and the moving part includes a sliding part embedded in the guide groove and slidably connected to the guide groove.

6. The easy-to-open injection mold according to claim 5, characterized in that: The guide groove is cross-shaped and forms a longitudinal limit for the sliding portion embedded in the guide groove.

7. The easy-to-open injection mold according to claim 5, characterized in that: It comprises a driving structure, wherein the driving structure comprises a driving rod movably connected to the moving member, and the driving rod is used to drive the moving member to move between the first moving position and the second moving position along the length direction of the guide groove.

8. The easy-to-open injection mold according to claim 7, characterized in that: The driving structure also includes a power source connected to the driving rod, the driving rod includes a first connecting portion connected to the power source, and a second connecting portion movably extended into the moving member, and the moving member is provided with a connecting groove for the second connecting portion to extend into.

9. The easy-to-open injection mold according to claim 8, characterized in that: The second connection portion is connected to the first connection portion in an inclined state and is inclined toward the slider assembly. The connection groove is an inclined linear groove, and the inclination direction of the connection groove is consistent with the inclination direction of the second connection portion.

10. The easy-to-open injection mold according to claim 1, characterized in that: It also includes a top column structure, which includes a first top column and a second top column movably arranged on the mold core and extending into the molding cavity, the first top column is clamped with the first slider, and the first slider is partially isolated from the product in the molding cavity, and the second top column is clamped with the second slider, and the second slider is partially isolated from the product in the molding cavity.

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