Product large downhill slide block structure and injection mold

Abstract

The utility model discloses a product large -scale downhill slider structure and injection mold relates to injection molding technical field. It includes with product downhill side structure corresponds, is used for injection molding's forming structure, with forming structure is connected and mold sliding connection's slider structure, respectively linkage injection mold needle plate and the drive structure of slider. Drive structure contains at least one main drive part, and the main drive part has with needle plate linkage's first linkage part, with main slider linkage and can drive its along the perpendicular opening mold direction sliding when opening mold's second linkage part and with main slider opposite sliding's third linkage part. The scheme utilizes needle plate movement force to drive main slider, can adapt to the forming demand of product large -angle downhill side surface inverted buckle rib position, promotes the locking stability and reliability of slider when closing mold, avoids the small displacement of slider because of lateral force deficiency, reduces product inverted buckle rib position flash, deformation and other defects, guarantees the forming quality.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a large downslope slider structure and injection mold for a product. Background Technology

[0002] In the field of injection molding technology, mold design for injection molded products with complex structures (such as parts with large slopes and undercut ribs on the sides) often faces numerous technical challenges, among which the locking problem of sliders with large downward slopes is particularly prominent. The undercut ribs on the sides of these products often form a downward slope with a large angle due to functional requirements or structural design (in some cases, the slope even exceeds the effective locking range of conventional hydraulic cylinder sliders). This makes it difficult for traditional mold slider structures to achieve stable and reliable locking, directly affecting product molding quality and production efficiency.

[0003] Currently, the industry commonly uses conventional hydraulic cylinder-driven slider structures for locking sliders in injection molds. This structure uses the extension and retraction of the cylinder piston rod to drive the slider movement, utilizing the cylinder's thrust to lock the slider in the mold-closed state. However, when injection molded products have undercut ribs with large downward slopes, the limitations of conventional hydraulic cylinder sliders become apparent: Firstly, due to the large downward slope angle, the lateral force on the slider during mold closing increases significantly, and the locking force of the conventional hydraulic cylinder cannot completely offset this lateral force. This can easily lead to slight displacement of the slider under injection pressure, resulting in defects such as flash and deformation at the undercut ribs, and in severe cases, even damage to the mold cavity. Secondly, the connection structure between the conventional hydraulic cylinder and the slider is mostly a rigid fit. When dealing with large downward slope scenarios, the force directions of the cylinder piston rod and the slider are inconsistent, easily generating additional torque. This not only accelerates the wear of the cylinder seals and shortens the equipment's service life but may also cause slider jamming due to force imbalance, leading to production interruptions.

[0004] Furthermore, some companies have attempted to increase the locking force by enlarging the hydraulic cylinder to solve the locking problem of steep downhill sliders. However, this approach increases the overall size and weight of the mold, raising manufacturing costs and placing higher demands on the injection molding machine's load-bearing capacity, thus limiting its applicability. At the same time, simply increasing the locking force cannot fundamentally solve the slider stability problem caused by inconsistent force directions, and the risk of product quality fluctuations remains. Utility Model Content

[0005] To address one of the shortcomings of existing technologies, this utility model provides a large downslope slider structure for products, solving the injection molding problem when products have a large downslope structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large downhill slider structure for a product, comprising:

[0007] The molding structure corresponds to the downslope side structure of the product and is used for injection molding the downslope side of the product.

[0008] The slider structure includes a main slider connected to the molding structure; and the main slider is slidably connected to the mold.

[0009] The driving structure is linked to both the needle plate and the slider of the injection mold; the driving structure includes:

[0010] At least one main driver must be provided. The main driver includes:

[0011] The first linkage unit is linked with the needle plate of the injection mold;

[0012] The second linkage unit is linked with the main slider and can drive the main slider to slide when the mold is opened. Its sliding direction is perpendicular to the mold opening direction.

[0013] The third linkage part slides relative to the main slider.

[0014] Preferably, the molding structure includes:

[0015] The connecting part is detachably connected to the main slider;

[0016] The molding section corresponds to the sloping structure with undercut ribs on the side of the product.

[0017] Preferably, the molding part is provided with an inclined stepped structure on the side of the mold facing the product injection space of the corresponding product, and the inclined stepped structure is a contour structure of the corresponding product.

[0018] Preferably, the slider structure further includes:

[0019] The slider limiting plate is fixedly connected to the mold and slidably connected to the main slider; several slider limiting plates are respectively set on both sides of the main slider.

[0020] Preferably, the main driving component is a rod, and one main driving component is symmetrically arranged on both sides of the main slider;

[0021] The first linkage part is located at one end of the main drive component. The first linkage part is a fixed connection structure, and the main drive component is fixedly connected to the needle plate through the first linkage part.

[0022] Preferably, slide rods are fixedly provided on both sides of the main slider corresponding to the main drive component;

[0023] The second and third linkage parts are sliding grooves provided on the main drive member rod body, and the sliding rod of the main slider and the sliding groove of the main drive member are slidably connected.

[0024] Preferably, the second linkage and the third linkage are connected;

[0025] The length direction of the groove of the third linkage part is parallel to the axis of the main drive component; the groove of the second linkage part is located at the end of the third linkage part away from the first linkage part; the groove of the second linkage part is an inclined groove relative to the axis of the main drive component, and the inclination direction of the groove of the second linkage part is opposite to the inclination direction of the forming part.

[0026] Preferably, the driving structure further includes:

[0027] A guide sleeve is fitted onto the outside of the main drive component. The main drive component and the guide sleeve are slidably connected, and the guide sleeve can be fixedly connected to the mold.

[0028] Preferably, the slider structure further includes:

[0029] A secondary slider is disposed on the side of the main slider that is away from the forming structure; the secondary slider and the main slider are slidably connected, and the sliding direction of the secondary slider is parallel to that of the main slider; an inclined guide hole is provided on the secondary slider;

[0030] The driving structure also includes:

[0031] The secondary drive component is fixedly connected to the mold and slidably connected to the guide hole of the secondary slider.

[0032] An injection mold that uses a slider structure as described above.

[0033] Compared with existing technologies, it has the following beneficial effects:

[0034] This solution uses the force of the needle plate movement as the driving force of the main slider, which can effectively adapt to the molding requirements of the undercut ribs on the large-angle downslope side of the product. It improves the locking stability and reliability of the slider in the mold closing state, avoids the small displacement of the slider caused by insufficient lateral force, thereby reducing defects such as flash and deformation of the undercut ribs of the product, and ensuring the molding quality of the product.

[0035] This structure achieves reliable locking by optimizing the force transmission method and the slider locking mechanism, rather than simply relying on increasing the size of the drive components. Therefore, it does not significantly increase the overall size and weight of the mold, reducing the mold manufacturing cost. At the same time, it has a more reasonable requirement for the load-bearing capacity of the injection molding machine, a wider range of applications, and can better meet the needs of different production scenarios. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application. Figure 2 ;

[0038] Figure 3This is a top view of an embodiment of this application;

[0039] Figure 4 for Figure 3 AA cross-section view.

[0040] In the picture:

[0041] 1. Molding structure; 11. Molding part; 2. Slider structure; 21. Main slider; 22. Slider limiting plate; 23. Sliding rod; 24. Secondary slider; 3. Drive structure; 31. Main drive component; 32. Guide sleeve; 33. Secondary drive component. Detailed Implementation

[0042] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] Please see Figures 1-4 This application provides the following technical solutions:

[0044] A large downslope slider structure for a product includes a molding structure 1, a slider structure 2, and a driving structure 3. The molding structure 1 corresponds to the downslope side structure of the product and is used for injection molding the downslope side of the product. The slider structure 2 includes a main slider 21 connected to the molding structure 1; and the main slider 21 is slidably connected to the mold. The driving structure 3 serves as the unit for applying driving force to the slider 21. This design utilizes the movement of the needle plate during mold opening as the power source for the slider 21, so the driving structure 3 is linked with both the needle plate of the injection mold and the slider 21 of the slider structure 2. The driving structure 3 includes two rod-shaped main driving members 31, symmetrically arranged on both sides of the slider 21. The main driving members 31 are provided with a first linkage part, a second linkage part, and a third linkage part. The first linkage part allows the main driving member 31 to be linked with the needle plate of the injection mold, meaning the main driving member 31 can follow the movement of the needle plate through the first linkage part. The second and third linkage parts are respectively activated by the slider 21. The second linkage part 21 is linked with the main slider 21 so that it can drive the main slider 21 to slide when the mold is opened, and its sliding direction is perpendicular to the mold opening direction. The third linkage part slides relative to the main slider 21. In other words, when the third linkage part and the main slider 21 are linked, the main drive 31 remains in motion, while the main slider 21 remains in its position.

[0045] With this structure, the movement of the needle plate during mold opening is used as the driving force for the main slider 21, thus eliminating the need for an additional power source. As the needle plate moves, the main slider 21 is driven by the main drive component 31 to move perpendicular to the mold opening direction, causing the molding structure 1, which serves as the product undercut, to separate from the product, thereby achieving partial demolding of the large downward slope of the product.

[0046] Based on the above implementation scheme, the molding structure 1 includes a connecting part and a molding part 11, wherein the connecting part and the main slider 21 are detachably connected, which can be achieved through a threaded connection. The molding part 11 corresponds to the downsloping structure with undercut ribs on the side of the product. In this scheme, the molding part 11 has an inclined stepped structure on the side of the mold facing the injection space of the product, and this inclined stepped structure is a contour structure for the corresponding product. See [link to relevant documentation] Figure 4 ,by Figure 4 The directions shown are for illustrative purposes; the lower part of the molding section 11 extends to the left, while the upper part slopes to the right. This corresponds to the large downward-sloping structure of the product.

[0047] Based on the above implementation scheme, the slider structure 2 also includes a slider limiting plate 22. The slider limiting plate 22 and the mold are fixedly connected by bolts, and after connection, the lower side of the slider limiting plate 22 forms a groove corresponding to the two sides of the main slider 21. The two sides of the main slider 21 are located on the slider limiting plate 22, thereby limiting the movement direction of the main slider 21. In this scheme, two slider limiting plates 22 are provided on each side of the main slider 21, and a gap is left between the two slider limiting plates 22, within which the main driving component 31 is located.

[0048] A secondary slider 24 is slidably connected to the side of the main slider 21 facing away from the forming structure 1. The secondary slider 24 and the main slider 21 are slidably connected, and the sliding direction of the secondary slider 24 is parallel to that of the main slider 21. An inclined guide hole is provided on the secondary slider 24. A through hole facing the connecting structure 1 is provided on the main slider 21, and one end of the secondary slider 24 can extend into the through hole. A connecting structure is provided on the side of the secondary slider 24 facing the connecting structure 1.

[0049] The drive structure 3 also includes a secondary drive component 33, which is an inclined rod. The secondary drive component 33 is fixedly connected to the mold and slidably connected to the guide hole of the secondary slider 24.

[0050] This structure increases the flexibility of the slider structure 2, allowing the secondary slider 24 to serve as a further structural feature for localized areas within the large downward slope structure of injection-molded products. Individually mounting different undercut molded parts on the secondary slider 24 improves the mold's adaptability to more complex products. Furthermore, the secondary drive component 33 can be connected to another part of the mold. As in the aforementioned scheme, the main slider 21 is driven by the movement of the needle plate, while the secondary slider 24 can be driven to slide by connecting the secondary drive component 33 to the upper mold, utilizing the force of the upper mold's opening.

[0051] Based on the above implementation plan, Figure 4 The direction shown is for reference. The lower part of the main drive component 31 is a round rod, and the upper part is a semi-circular rod. The first linkage part is located at the lower end of the main drive component 31. The first linkage part of this solution is a fixed connection structure, such as a fixed connecting seat, which directly fixes the main drive component 31 to the needle plate to realize the synchronous movement of the main drive component 31 and the needle plate, thus serving as the linkage form between the two.

[0052] Slide rods 23 are fixedly mounted on both sides of the main slider 21 corresponding to the main drive component 31; the second and third linkage parts are sliding grooves provided on the rod body of the main drive component 31, and the slide rods 23 of the main slider 21 are slidably connected to the sliding grooves of the main drive component 31. The grooves of the second and third linkage parts are connected; the length direction of the groove of the third linkage part is parallel to the axial direction of the main drive component 31, that is... Figure 4 The vertical groove portion is shown. The groove of the second linkage part is located above the groove of the third linkage part; the groove of the second linkage part is an inclined groove relative to the axial direction of the main drive member, and the inclination direction of the groove of the second linkage part is opposite to the inclination direction of the forming part 11. From Figure 4 As can be seen, the lower end of the forming part 11 extends to the left, while the lower end of the groove of the second linkage part extends to the right, and its lower end is connected to the upper end of the third linkage part.

[0053] It should be noted that the grooves of the second and third linkage parts are located on the semi-circular rod portion of the main drive member 31, and do not form through grooves on the main drive member 31, but only present as recessed structures on the main drive member 31. This structure can meet the usage requirements of the linkage effect of the slider 21 on the one hand, and maintain sufficient strength of the main drive member 31 on the other hand.

[0054] Based on the above implementation scheme, the drive structure 3 also includes a cylindrical guide sleeve 32, which is sleeved on the outside of the main drive component 31. The main drive component 31 and the guide sleeve 32 are slidably connected, and the guide sleeve 32 can be fixedly connected to other parts of the mold.

[0055] The guide sleeve 32 is designed to enhance the stability of the main drive component 31 during operation, while also improving the service life and safety of the equipment.

[0056] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0057] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0060] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0061] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A large downhill slider structure for a product, characterized in that, include: The molding structure corresponds to the downslope side structure of the product and is used for injection molding the downslope side of the product. A slider structure, including a main slider connected to the molding structure; Furthermore, the main slider is slidably connected to the mold; The driving structure is linked to the needle plate and the slider of the slider structure of the injection mold, respectively; The drive structure includes: At least one main driver must be provided. The main driver includes: The first linkage unit is linked with the needle plate of the injection mold; The second linkage unit is linked with the main slider and can drive the main slider to slide when the mold is opened. Its sliding direction is perpendicular to the mold opening direction. The third linkage part slides relative to the main slider.

2. The large downhill slider structure for products as described in claim 1, characterized in that, The molding structure includes: The connecting part is detachably connected to the main slider; The molding section corresponds to the sloping structure with undercut ribs on the side of the product.

3. The large downhill slider structure for products as described in claim 2, characterized in that, The molding part is provided with an inclined stepped structure on the side of the mold facing the product injection space, and the inclined stepped structure is a contour structure of the corresponding product.

4. The large downhill slider structure for products as described in claim 2, characterized in that, The slider structure also includes: The slider limiting plate is fixedly connected to the mold and slidably connected to the main slider; several slider limiting plates are respectively set on both sides of the main slider.

5. The large downhill slider structure for products as described in claim 4, characterized in that, The main driving component is a rod, and one main driving component is symmetrically arranged on both sides of the main slider; The first linkage part is located at one end of the main drive component. The first linkage part is a fixed connection structure, and the main drive component is fixedly connected to the needle plate through the first linkage part.

6. The large downhill slider structure for products as described in claim 5, characterized in that, The main slider has slide rods fixedly installed on both sides corresponding to the main drive component; The second and third linkage parts are sliding grooves provided on the main drive member rod body, and the sliding rod of the main slider and the sliding groove of the main drive member are slidably connected.

7. The large downhill slider structure for products as described in claim 6, characterized in that, The second linkage and the third linkage are connected; The length direction of the groove of the third linkage part is parallel to the axis of the main drive component; the groove of the second linkage part is located at the end of the third linkage part away from the first linkage part; the groove of the second linkage part is an inclined groove relative to the axis of the main drive component, and the inclination direction of the groove of the second linkage part is opposite to the inclination direction of the forming part.

8. The large downhill slider structure for products as described in claim 7, characterized in that, The driving structure also includes: A guide sleeve is fitted onto the outside of the main drive component. The main drive component and the guide sleeve are slidably connected, and the guide sleeve can be fixedly connected to the mold.

9. The large downhill slider structure for products as described in any one of claims 1-8, characterized in that, The slider structure also includes: A secondary slider is disposed on the side of the main slider that is away from the forming structure; the secondary slider and the main slider are slidably connected, and the sliding direction of the secondary slider is parallel to that of the main slider; an inclined guide hole is provided on the secondary slider; The driving structure also includes: The secondary drive component is fixedly connected to the mold and slidably connected to the guide hole of the secondary slider.

10. An injection mold, characterized in that, Use the slider structure as described in any one of claims 1-9.

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