Forward pressing type nest plate mold
By designing a front-pressing die and utilizing a movable rear ejector pin to simplify parts replacement, the accuracy and durability of the die are improved. This solves the problems of complex parts replacement, short lifespan, and impact from cold heading machines in traditional dies, achieving efficient and reliable production results.
Patent Information
- Application Number
- CN202520106591.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Traditional rear-locking die-cutting molds suffer from problems such as complex parts replacement, limited mold life, and reduced precision due to impacts from cold heading machines during production, which affect production efficiency and product quality.
Design a front-pressing sleeve mold, including mold shell, mold core, sleeve, C-ring and rear ejector pin. By setting a movable rear ejector pin at the rear end, the part replacement process is simplified, the mold accuracy and durability are improved, and the impact of cold heading machine is resisted.
It simplifies the parts replacement process, improves maintenance efficiency, reduces production downtime, ensures high precision of the mold during the production process and consistent product quality, and extends the mold life.
Smart Images

Figure CN223862772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet molds, specifically to a front-pressing sheet mold. Background Technology
[0002] In traditional manufacturing, die-cutting molds are key production tools, and their performance directly affects product production efficiency and quality. However, traditional rear-locking die-cutting molds suffer from complex parts replacement procedures, primarily due to design limitations. This necessitates workers spending considerable time and effort on parts replacement, thus impacting overall production efficiency. Furthermore, traditional molds have relatively limited lifespans, and frequent replacements and maintenance not only increase production costs but also further restrict the improvement of production efficiency.
[0003] On the other hand, traditional rear-locking die-cutting molds also face challenges during production. The strong impact generated by cold heading machines can negatively affect the mold's precision. Decreased mold precision directly leads to unstable product quality and may even cause product defects, which is unacceptable for manufacturing industries that pursue high-quality production.
[0004] Therefore, to address the problems of complex component replacement, limited mold life, and the impact of cold heading machine on the precision of ordinary molds during production, the industry urgently needs a new mold design to improve production efficiency and ensure product quality. This new mold design needs to simplify component replacement, improve mold durability, and effectively resist the impact of cold heading machine on mold precision, thereby meeting the demands of modern manufacturing for efficient and high-quality production. Summary of the Invention
[0005] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this utility model is to propose a front-pressing sleeve mold.
[0006] To achieve the above objectives, a front-pressing sleeve mold according to an embodiment of the present utility model includes a mold shell, a mold core, sleeves, a C-ring, and a rear top post.
[0007] The front end of the mold shell is provided with a first mounting groove, and the rear end of the mold shell is provided with a second mounting groove, the second mounting groove extending through the first mounting groove.
[0008] The mold core is disposed in the first mounting groove and is coaxially arranged with the first mounting groove.
[0009] The sleeve is positioned above the mold core and is coaxially arranged with the mold core.
[0010] The C-shaped ring is disposed in the first mounting groove and simultaneously fitted onto the outer surface of the mold core and the sleeve.
[0011] The rear top post is located in the second mounting groove and moves along the length of the second mounting groove to push the mold core out of the first mounting groove.
[0012] In addition, a front-pressing sleeve mold according to the above embodiments of the present invention may also have the following additional technical features:
[0013] According to one embodiment of the present invention, the diameter of the second mounting groove is smaller than the diameter of the first mounting groove.
[0014] According to one embodiment of the present invention, a third mounting groove is provided in the middle of the rear top column, the third mounting groove extending through both ends of the rear top column, and the third mounting groove is used for the passage of a material ejector pin.
[0015] According to one embodiment of the present invention, the upper surface of the mold core is provided with a receiving cavity extending through to its own bottom surface.
[0016] According to one embodiment of the present invention, a limiting groove is provided in the middle of the outer surface of the mold shell, and the limiting groove extends circumferentially along the mold shell.
[0017] According to one embodiment of the present invention, the upper end of the sidewall of the accommodating cavity is formed into a beveled portion, and the beveled portion extends circumferentially along the accommodating cavity.
[0018] According to one embodiment of the present invention, a limiting notch is formed on the outer surface of the mold shell, the limiting notch extending from the rear end of the mold shell and approaching the axial direction of the mold shell.
[0019] According to an embodiment of this utility model, a front-pressing sleeve mold, by setting a movable rear ejector post at the rear end, can easily eject the mold core from the first mounting groove, greatly simplifying the replacement process of accessories (especially the mold core), improving maintenance efficiency, and reducing production downtime. The mold core, sleeve, and C-ring are coaxially set in the first mounting groove from the front end of the mold shell, ensuring high precision of the mold during the production process, effectively resisting the impact of equipment such as cold heading machines on the mold precision, and thus ensuring product quality and consistency.
[0020] In summary, this front-pressing die effectively solves the limitations of traditional dies in terms of parts replacement, lifespan, precision maintenance, and production efficiency with its unique design, providing the manufacturing industry with a more efficient and reliable die solution.
[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this utility model;
[0024] Figure 2 This is a cross-sectional view of the overall structure in an embodiment of this utility model;
[0025] Figure 3 This is an exploded view of the overall structure in an embodiment of this utility model;
[0026] Figure 4 This is a schematic cross-sectional view of the mold shell in an embodiment of this utility model.
[0027] Icon labels:
[0028] Mold shell 10;
[0029] First mounting slot 11;
[0030] Second mounting slot 12;
[0031] 13 rear top posts;
[0032] Third mounting slot 14;
[0033] Limiting groove 15;
[0034] Limit gap 16;
[0035] Mold core 20;
[0036] Receptacle 21;
[0037] Bevel part 22;
[0038] 30 pieces;
[0039] C-ring 40.
[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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 utility model.
[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0045] In this invention, unless otherwise explicitly 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 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 directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0046] The following describes in detail, with reference to the accompanying drawings, an embodiment of the present invention: a front-pressing sleeve mold.
[0047] Reference Figures 1 to 4 As shown, a front-pressing sleeve mold provided according to an embodiment of the present utility model includes a mold shell 10, a mold core 20, sleeves 30, a C-ring 40, and a rear top post 13.
[0048] The front end of the mold shell 10 is provided with a first mounting groove 11, and the rear end of the mold shell 10 is provided with a second mounting groove 12, which extends through the first mounting groove 11.
[0049] The mold core 20 is disposed in the first mounting groove 11 and is coaxially arranged with the first mounting groove 11.
[0050] The sleeve 30 is disposed above the mold core 20 and is coaxially arranged with the mold core 20. The sleeve 30 has a ring structure.
[0051] The C-ring 40 is disposed in the first mounting groove 11 and is simultaneously sleeved on the outer surface of the mold core 20 and the sleeve 30.
[0052] The rear top post 13 is disposed in the second mounting groove 12 and moves along the length direction of the second mounting groove 12 to push the mold core 20 out of the first mounting groove 11.
[0053] Based on the above, by setting a movable rear ejector post 13 at the rear end, the mold core 20 can be easily ejected from the first mounting groove 11, greatly simplifying the replacement process of accessories (especially the mold core 20), improving maintenance efficiency, and reducing production downtime. The mold core 20, sleeve 30, and C-ring 40 are coaxially set in the first mounting groove 11 from the front end of the mold shell 10, ensuring high precision of the mold during the production process, effectively resisting the impact of equipment such as cold heading machines on the mold precision, and thus ensuring product quality and consistency.
[0054] In summary, this front-pressing 30-piece mold, with its unique design, effectively solves the limitations of traditional molds in terms of parts replacement, lifespan, precision maintenance, and production efficiency, providing the manufacturing industry with a more efficient and reliable mold solution.
[0055] Preferably, in one embodiment of the present invention, the diameter of the second mounting groove 12 is smaller than the diameter of the first mounting groove 11.
[0056] Thus, by setting a movable rear ejector post 13 at the rear end and using the smaller diameter second mounting groove 12 as the ejection channel, the ejection force and direction can be controlled more precisely, easily ejecting the mold core 20 from the larger diameter first mounting groove 11. This not only simplifies the parts replacement process but also improves the stability and safety of the replacement operation. Simultaneously, it allows the mold core 20 and the tail end of the C-shaped part to fit against the bottom of the first mounting groove 11, enabling the mold shell 10 to distribute force more evenly when under pressure. This enhances the overall structural strength of the mold, reduces the risk of deformation or damage due to long-term use or high-load operation, and further extends the service life of the mold.
[0057] Preferably, in one embodiment of the present invention, a third mounting groove 14 is provided in the middle of the rear top post 13, the third mounting groove 14 extends through both ends of the rear top post 13, and the third mounting groove 14 is used for the passage of the ejector pin for ejecting material.
[0058] Thus, the design of the third mounting groove 14 optimizes the structure of the rear ejector pin 13, allowing it to flexibly adapt to different ejection requirements while maintaining sufficient strength. This not only enhances the overall functionality of the mold but also improves its adaptability and flexibility, enabling it to meet more diverse production needs. Combined with the coaxial arrangement of the mold core 20, sleeve 30, and C-ring 40, and precise installation position control, the design of the third mounting groove 14 ensures high precision and stability of the mold during production. The ejector pins perform ejection operations through the third mounting groove 14, reducing the impact of improper ejection mechanisms on mold precision, thereby ensuring product quality and consistency.
[0059] Preferably, in one embodiment of the present invention, the upper surface of the mold core 20 is provided with a receiving cavity 21 that extends through to its own bottom surface.
[0060] In this way, the cavity 21 provided on the mold core 20 can directly participate in the product molding process, making it easy for the screw shaft to enter the cavity 21, thus ensuring the accuracy of the product shape and size.
[0061] Preferably, in one embodiment of the present invention, a limiting groove 15 is provided in the middle of the outer surface of the mold shell 10, and the limiting groove 15 extends circumferentially along the mold shell 10.
[0062] Thus, the design of the limiting groove 15 provides additional positioning support for the mold during installation and use. When the mold is installed on the production equipment, the limiting groove 15 can fit tightly with the positioning components of the equipment, ensuring that the mold can maintain a stable position even when subjected to large pressure, reducing production errors caused by the mold's back-and-forth swaying.
[0063] Preferably, in one embodiment of the present invention, the upper end of the sidewall of the accommodating cavity 21 is formed as a beveled portion 22, and the beveled portion 22 extends circumferentially along the accommodating cavity 21.
[0064] Thus, the design of the beveled part 22 creates a beveled transition surface at the connection between the screw head and the screw rod during the cold heading process, resulting in higher screw strength.
[0065] Preferably, in one embodiment of the present invention, a limiting notch 16 is formed on the outer surface of the mold shell 10. The limiting notch 16 extends from the rear end of the mold shell 10 and approaches the axial direction of the mold shell 10.
[0066] Thus, the design of the limiting notch 16 provides precise positioning support for the mold during installation and use. When the mold is installed on the production equipment, the limiting notch 16 can fit tightly with the positioning components of the equipment to ensure that the mold maintains a stable position during production and avoids rotation due to pressure and vibration.
[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0068] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A front-pressing type sleeve mold, characterized in that, include: A mold shell, wherein a first mounting groove is provided at the front end of the mold shell and a second mounting groove is installed at the rear end of the mold shell, and the second mounting groove extends through the first mounting groove; A mold core, wherein the mold core is disposed in the first mounting groove and is coaxially arranged with the first mounting groove; A sleeve, wherein the sleeve is disposed above the mold core and is coaxially arranged with the mold core; A C-shaped ring is disposed in the first mounting groove and simultaneously fitted onto the outer surface of the mold core and the sleeve. The rear top post is located in the second mounting groove and moves along the length of the second mounting groove to push the mold core out of the first mounting groove.
2. The front-pressing sleeve mold according to claim 1, characterized in that, The diameter of the second mounting groove is smaller than the diameter of the first mounting groove.
3. The front-pressing sleeve mold according to claim 1, characterized in that, The rear top column is provided with a third mounting groove in the middle, which extends through both ends of the rear top column and is used for the ejector pin of the ejector to pass through.
4. The front-pressing sleeve mold according to claim 1, characterized in that, The upper surface of the mold core has a cavity in the middle that extends through to its bottom surface.
5. The front-pressing sleeve mold according to claim 1, characterized in that, A limiting groove is provided in the middle of the outer surface of the mold shell, and the limiting groove extends circumferentially along the mold shell.
6. The front-pressing sleeve mold according to claim 4, characterized in that, The upper end of the sidewall of the accommodating cavity is formed into a beveled portion, which extends circumferentially along the accommodating cavity.
7. The front-pressing sleeve mold according to claim 1, characterized in that, A limiting notch is formed on the outer surface of the mold shell, the limiting notch extends from the rear end of the mold shell and approaches the axis of the mold shell.