Sleeving die

Abstract

The utility model discloses a die set, which relates to the technical field of die injection molding, and comprises a die frame, a die core and a positioning device, and a die core cavity and an injection molding channel are formed in the die frame; the mold core comprises an upper mold and a lower mold, the upper mold and the lower mold are both located in the mold core cavity, an injection molding cavity is defined by the upper mold and the lower mold and communicates with the injection molding channel, and the injection molding cavity is used for containing a to-be-sleeved mold part; the positioning device comprises a supporting part and a positioning part, the supporting part and the positioning part are both in sliding connection with the mold core, the supporting part is used for supporting a to-be-sleeved die piece, so that the to-be-sleeved die piece, the upper mold and the lower mold are enclosed to form a die sleeving cavity, and the positioning part is used for positioning the to-be-sleeved die piece.

Description

Technical Field

[0001] This utility model relates to the field of mold injection technology, and in particular to a die-casting mold. Background Technology

[0002] Overmolding is a mold processing method. The mold used for overmolding is called an overmolding mold (overmolding mold) or a secondary molding mold. Overmolding molds require two sets of plastic molds. Usually, the hard plastic part is made first, and then the molded hard plastic part is placed into the soft plastic mold for injection molding to wrap it.

[0003] In traditional processes, two sets of molds are typically used during injection molding. First, one set of molds is used to position and inject the internal hard plastic. After positioning, another set of molds is used to fully inject and mold the positioned semi-finished product. This results in a waste of equipment and manpower, and reduces production efficiency. Utility Model Content

[0004] The main purpose of this utility model is to propose a double-die mold, which aims to solve the problem that traditional double-die molds require the manufacture of two sets of molds, one for positioning and the other for molding, resulting in a waste of equipment and manpower and a reduction in production efficiency.

[0005] To achieve the above objectives, this utility model proposes a die for die fitting, comprising a die frame, a die core, a die to be fitted, and a positioning device. The die frame has a die core cavity and an injection channel. The die core includes an upper die and a lower die, both located within the die core cavity. The upper die and the lower die together form an injection cavity, which communicates with the injection channel. The injection cavity is used to accommodate the die to be fitted. The positioning device includes a support part and a positioning part, both slidably connected to the die core. The support part supports the die to be fitted, so that the die to be fitted, together with the upper die and the lower die, forms the die cavity. The positioning part positions the die to be fitted. Attached Figure Description

[0006] 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.

[0007] Figure 1 A schematic diagram of the structure of an embodiment of the die-cutting mold provided by this utility model;

[0008] Figure 2 for Figure 1Cross-sectional view at point AA;

[0009] Figure 3 for Figure 2 A magnified view of a section at point B in the middle;

[0010] Figure 4 A schematic diagram of another embodiment of the die-cutting mold provided by this utility model;

[0011] Figure 5 A schematic diagram of another embodiment of the die-cutting mold provided by this utility model;

[0012] Figure 6 This is a schematic diagram of the structure of an embodiment of the second and third needle plates provided by this utility model;

[0013] Figure 7 for Figure 6 Cross-sectional view at point CC.

[0014] Explanation of icon numbers:

[0015] 100. Molding mold; 1. Mold frame; 1a. Mold core cavity; 1b. Injection channel; 2. Mold core; 21. Upper mold; 22. Lower mold; 1c. Injection cavity; 3. Part to be molded; 4. Positioning device; 41. Support part; 42. Positioning part; 1d. Molding cavity; 411. First support member; 412. Second support member; 3a. Positioning hole; 421. Positioning member; 43. First pin plate; 43a. First limiting hole; 431. Blind end; 44. Elastic member; 45. Second pin plate; 45a. Second limiting hole; 46. Third pin plate; 46a. Third limiting hole; 47. Movable buckle; 48. Reset member; 5. Driving member.

[0016] 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

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0019] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] This utility model proposes a die-cutting mold 100.

[0021] Please see Figure 1 , Figure 2 and Figure 5 In one embodiment of this utility model, the die set mold 100 includes a mold frame 1, a mold core 2, a die to be molded 3, and a positioning device 4. The mold frame 1 has a cavity 1a of the mold core 2 and an injection channel 1b. The mold core 2 includes an upper mold 21 and a lower mold 22, both of which are located within the cavity 1a of the mold core 2. The upper mold 21 and the lower mold 22 enclose an injection cavity 1c, which is connected to the injection channel 1b. The injection cavity 1c is used to accommodate the die to be molded 3. The positioning device 4 includes a support part 41 and a positioning part 42, both of which are slidably connected to the mold core 2. The support part 41 is used to support the die to be molded 3, so that the die to be molded 3 and the upper mold 21 and the lower mold 22 enclose a die to be molded cavity 1d. The positioning part 42 is used to position the die to be molded 3.

[0022] In this embodiment, the mold base 1 is the basic structure in the injection mold, providing support and fixation for other mold components such as the mold core 2, ejector system, and cooling system. The mold base 1 typically consists of two main parts: a fixed mold base 1 (fixed plate) and a moving mold base 1 (moving plate). They are precisely aligned via guide pillars and guide sleeves or other guiding mechanisms to ensure accurate mold closure and opening. The mold base 1 must be designed with sufficient strength and rigidity to withstand the high pressure and repeated mechanical stresses generated during injection molding. The mold base 1 has mounting holes and locating pin holes for fixing the mold core 2 and other mold components, ensuring their accurate positioning within the mold. The mold base 1 design must match the specifications of the injection molding machine, including the mold size, weight, and clamping force of the injection molding machine. The mold base 1 forms a mold core 2 cavity 1a and an injection channel 1b. The mold core 2 cavity 1a is the space within the mold base 1 used to accommodate the mold core 2 (molding component). Its shape and dimensions need to precisely match the mold core 2 to ensure that the mold core 2 can be correctly installed and form the required injection cavity 1c. Injection channel 1b connects the injection molding machine nozzle and mold core 2 cavity 1a, conveying molten plastic into the mold core 2 cavity 1a. The channel design must consider factors such as flow resistance, pressure loss, and heat distribution. Cooling channels can also be integrated within the mold base 1 to control mold temperature, ensuring uniform cooling of the plastic and rapid mold circulation. The mold base 1 has fixing holes and locating pin holes for securing the mold core 2, ejector system, and other mold components, ensuring their accurate positioning within the mold. The mold base 1 provides a stable platform, contributing to improved dimensional accuracy and repeatability of injection molded parts. The strength and rigidity of the mold base 1 help extend mold life and reduce repair and replacement costs due to deformation or damage. The design of the mold base 1 allows the mold to be adapted to various injection molding machines, increasing its versatility and flexibility. The design of the mold core 2 cavity 1a and injection channel 1b reduces the flow time of plastic within the mold, improving production efficiency. Precise design of the mold core 2 cavities 1a and injection channel 1b helps reduce defects during plastic flow, such as bubbles, warpage, and uneven filling, thereby improving product quality. A well-designed cooling system reduces thermal stress on the mold and extends its lifespan. The mold base 1 is typically made of high-strength steel, such as P20, H13, and S7, which possess good mechanical properties and heat treatment characteristics. In cost-sensitive applications where strength requirements are not particularly high, cast iron can also be chosen as the material for the mold base 1.

[0023] The mold core 2 is a crucial part of the injection mold used to form the shape of the plastic product. It consists of an upper mold 21 and a lower mold 22, which together form the injection cavity 1c. The design of the mold core 2 needs to precisely match the internal and external shapes of the product to be molded. The upper mold 21 and lower mold 22 correspond to the upper and lower shapes of the product, respectively. The upper mold 21 and lower mold 22 are placed within the cavity 1a of the mold core 2, ensuring that they are precisely aligned when the mold is closed to form the required injection cavity 1c. The injection cavity 1c is connected to the nozzle of the injection molding machine through the injection channel 1b, ensuring that the molten plastic can flow smoothly into the injection cavity 1c. The mold core 2 is usually made of high-strength, high-hardness steel, such as P20, H13, and S7, which have good mechanical properties and wear resistance. The mold core 2 material can be heat-treated to improve its hardness and wear resistance, extending its service life. The surface of the mold core 2 may be hardened (e.g., nitriding) or coated (e.g., TiN coating) to improve wear resistance and corrosion resistance.

[0024] The part to be molded (3) refers to the already injection-molded hard plastic part. Part 3 is placed in the injection cavity 1c of the mold, ready for a second injection to cover the soft plastic material. First, the hard plastic material is injection-molded to form part 3. This step is usually completed in a separate mold. The molded hard plastic part is removed and placed in the injection cavity 1c of the molding mold 100. Ensure the hard plastic part is correctly positioned. After the mold closes, the soft plastic material is injected into the injection cavity 1c, surrounding the hard plastic part to form the soft plastic portion of the final product. After injection molding, the mold cools, then opens, and the complete molded product is removed. The material selection for the hard plastic part depends on the product's structure and performance requirements; commonly used materials include metal or plastic. The selection of the soft plastic material focuses more on tactile feel, elasticity, and chemical stability; commonly used materials include TPE, TPU, and silicone. When selecting materials, the adhesive compatibility between the hard and soft plastics needs to be considered to ensure they can be firmly bonded together.

[0025] It should be noted that the positioning device 4 plays a crucial role in the die-casting mold 100, ensuring the correct positioning and stable support of the die-cast part 3 during injection molding. The support part 41 is designed to support the die-cast part 3 from above, below, or the side to ensure it remains in the correct position during injection molding. This involves a sliding or movable mechanical structure to place the die-cast part 3 in the correct position before injection molding. The positioning part 42 is used to precisely position the die-cast part 3, ensuring it does not shift during injection molding. This may include pins, slots, or other forms of mechanical locking devices. The sliding connection between the support part 41 and the positioning part 42 and the mold core 2 ensures that these components move when the mold opens and closes, allowing the die-cast part 3 to be placed or removed while remaining fixed during injection molding. The precise positioning device 4 ensures the accurate position of the die-cast part 3 during injection molding, thereby improving the dimensional accuracy and consistency of the final product. The presence of the support part 41 ensures the stability of the die-cast part 3 during injection molding, preventing deformation or damage due to mold closing pressure. The components of the positioning device 4 are typically made of high-strength steel to ensure durability and stability during high-pressure injection molding. Because the positioning device 4 needs to withstand repeated mechanical movements, wear-resistant materials such as stainless steel or surface-hardened steel are common choices. To reduce friction and wear on sliding connections, self-lubricating materials or a lubricating coating can be added to the contact surfaces.

[0026] The die-casting mold 100 of this utility model integrates a mold frame 1, a mold core 2, a die to be cast 3, and a positioning device 4, enabling the positioning of hard plastic and the injection molding of soft plastic within the same mold set, thus avoiding the limitation of requiring two mold sets in traditional processes. Specifically, the mold frame 1 forms a mold core 2 cavity 1a and an injection channel 1b. The mold core 2 consists of an upper mold 21 and a lower mold 22, which are located within the mold core 2 cavity 1a and enclose an injection cavity 1c. The injection cavity 1c is connected to the injection channel 1b, and the die to be cast 3 is placed within the injection cavity 1c. The positioning device 4 consists of a support part 41 and a positioning part 42, both of which are slidably connected to the mold core 2. The support part 41 supports the die to be cast 3, ensuring that it, together with the upper mold 21 and the lower mold 22, forms the die-casting cavity 1d. The positioning part 42 is used to precisely position the die to be cast 3 to prevent it from rotating and affecting the injection molding effect. This design allows rigid plastic parts to be directly injection molded a second time without being removed after the first injection molding, eliminating the need for multiple positioning and mold changing steps in traditional processes. This significantly improves production efficiency, reduces equipment and labor costs, and ensures product positioning accuracy and molding quality.

[0027] In one embodiment of this utility model, please refer to Figure 2 and Figure 3The support part 41 includes a first support member 411 and a second support member 412. The first support member 411 is slidably connected to the upper mold 21, and the second support member 412 is slidably connected to the lower mold 22. The end of the first support member 411 near the molding cavity 1d can extend into the molding cavity 1d and abut against the part 3 to be molded. The end of the second support member 412 near the molding cavity 1d can extend into the molding cavity 1d and abut against the part 3 to be molded.

[0028] In one embodiment, the support portion 41 of the positioning device 4 uses a double-support structure to ensure the stable positioning of the die-cast part 3 during the injection molding process. Specifically, the support portion 41 includes a first support member 411 and a second support member 412. The first support member 411 is connected to the upper mold 21 via a sliding connection, while the second support member 412 is also connected to the lower mold 22 via a sliding connection. This sliding connection can be achieved through a lead screw slider or guide rail, etc. This design ensures that the first support member 411 and the second support member 412 move accordingly when the mold opens and closes to accommodate the placement and removal of the die-cast part 3. When the mold is closed, the free ends of the first support member 411 and the second support member 412 can extend into the die-casting cavity 1d and abut against the die-cast part 3, providing the necessary support force to ensure that the die-cast part 3 maintains the correct position during soft rubber injection molding and prevents displacement or deformation during high-pressure injection. Through the synergistic effect of the double-support structure, the positioning accuracy and stability of the die-cast part 3 during the injection molding process are significantly improved, thereby ensuring the quality of the final product. Secondly, the sliding connection design allows the support component to move flexibly, facilitating integration with automated equipment and further improving production efficiency. Furthermore, this design ensures a more compact mold design, saving space and reducing mold manufacturing costs. Finally, by precisely controlling the contact between the support component and the part to be molded (3), material waste during injection molding can be effectively reduced, improving material utilization and thus lowering production costs, achieving a dual optimization of economy and efficiency.

[0029] In one embodiment of this utility model, please refer to Figure 3 The die 3 is provided with a positioning hole 3a. The positioning part 42 includes a positioning member 421. The positioning member 421 is slidably connected to the lower die 22. The end of the positioning member 421 near the die cavity 1d can be inserted into the positioning hole 3a.

[0030] In this embodiment, the positioning of the die-cast part 3 is achieved by opening a positioning hole 3a on the die-cast part 3, and the positioning part 42 of the mold includes a positioning member 421 that can be slidably connected to the lower mold 22. Specifically, the positioning member 421 is designed with one end that can be inserted into the positioning hole 3a on the die-cast part 3. When the mold is closed, this end of the positioning member 421 is inserted into the positioning hole 3a, thereby ensuring the precise position of the die-cast part 3 during the injection molding process. The sliding connection of the positioning member 421 can be achieved by means of a lead screw slider or guide rail, etc. The positioning member 421 moves as necessary when the mold is opened and closed to adapt to the positioning and release of the die-cast part 3, while maintaining its fixed position during the injection molding process.

[0031] The coordinated use of positioning hole 3a and positioning element 421 significantly improves the positioning accuracy of the part to be molded 3 during the injection molding process, ensuring consistent quality and appearance of the molded products. Secondly, the sliding connection design allows positioning element 421 to move flexibly, facilitating integration with automated equipment and further improving production efficiency. Furthermore, this design simplifies mold operation, reduces operational difficulty, and minimizes the possibility of human error. Finally, precise positioning ensures efficient use of injection molding material, reduces material waste, and helps lower production costs and improve economic efficiency.

[0032] In one embodiment of this utility model, please refer to Figure 2 and Figure 4 The positioning device 4 also includes a first needle plate 43, which is located on the side of the upper mold 21 away from the lower mold 22. The first needle plate 43 has a first limiting hole 43a, and the end of the first support member 411 away from the sleeve cavity 1d is accommodated and limited in the first limiting hole 43a.

[0033] In one embodiment, the accuracy and reliability of the positioning device 4 are enhanced by introducing a first needle plate 43. Specifically, the first needle plate 43 is fixed to the side of the upper mold 21 facing away from the lower mold 22, and a first limiting hole 43a is provided on the first needle plate 43. One end of the first support member 411 is designed to be accommodated and confined within the first limiting hole 43a. This design ensures the precise position of the first support member 411 during mold closing and injection molding, preventing displacement of the first support member 411 due to mold closing pressure or injection pressure. Through the cooperation of the first needle plate 43 and the first limiting hole 43a, the position of the first support member 411 is precisely controlled, thereby ensuring the stability and accuracy of the die-cast part 3 during injection molding. The design of the first needle plate 43 reduces the risk of deformation of the first support member 411 under high pressure, thereby extending the service life of the mold. The integrated design of the first needle plate 43 simplifies the overall structure of the mold, reduces additional components and potential failure points, making the mold more compact and easier to maintain. Precise positioning reduces product defect rates and speeds up the production process, thereby improving overall production efficiency. Reduced mold complexity simplifies maintenance and repair, lowering long-term operating costs.

[0034] In one embodiment of this utility model, please refer to Figure 3 The first limiting hole 43a is provided with a blind end 431. The positioning device 4 includes an elastic element 44. The two ends of the elastic element 44 are respectively connected to the first support element 411 and the blind end 431. The elastic element 44 is located in the first limiting hole 43a.

[0035] In this embodiment, the stability and ease of operation of the positioning device 4 are significantly improved by introducing the elastic element 44. The first limiting hole 43a is specially designed with a blind end 431, that is, the channel terminates at one end, forming a closed space. The elastic element 44, such as a spring or elastic plunger, is placed in the first limiting hole 43a, with one end connected to the first support member 411 and the other end connected to the blind end 431. This configuration allows the first support member 411 to automatically return to the preset position under the elastic action of the elastic element 44, realizing a self-positioning function, thereby reducing collisions between parts caused by mold processing errors. The addition of the elastic element 44 provides a continuous restoring force, ensuring that after the first support member 411 is displaced under the action of injection pressure, it can quickly and accurately return to the initial position, maintaining the precise positioning of the die-cast part 3. The buffering effect of the elastic element 44 reduces the impact and wear during the mold closing and opening process, extending the service life of the mold. Due to the self-positioning characteristics of the elastic element 44, mold failures caused by support member displacement or detachment are reduced, lowering maintenance costs and frequency. The mold's rapid and accurate self-positioning capability reduces downtime during production, speeds up the production pace, and thus improves overall production efficiency.

[0036] In one embodiment of this utility model, please refer to Figure 4 and Figure 5 The positioning device 4 also includes a second needle plate 45, which is located on the side of the lower mold 22 away from the upper mold 21. The second needle plate 45 has a second limiting hole 45a, and the end of the second support member 412 away from the sleeve cavity 1d is accommodated and limited in the second limiting hole 45a.

[0037] In this embodiment, to enhance the stability and precise positioning of the die-cast part 3 during the injection molding process, the positioning device 4 further includes a second needle plate 45. The second needle plate 45 is fixed to the side of the lower mold 22 facing away from the upper mold 21, and has a second limiting hole 45a. Correspondingly, one end of the second support member 412 is designed to be accommodated and confined within the second limiting hole 45a. This configuration ensures the precise position of the second support member 412 during mold closing and injection molding, preventing displacement of the second support member 412 due to mold closing pressure or injection pressure. Through the cooperation of the second needle plate 45 and the second limiting hole 45a, the position of the second support member 412 is precisely controlled, thereby ensuring the stability and precision of the die-cast part 3 during the injection molding process. The design of the second needle plate 45 reduces the risk of deformation of the second support member 412 under high pressure, thereby extending the service life of the mold. The integrated design of the second needle plate 45 simplifies the overall structure of the mold, reduces additional components and potential failure points, making the mold more compact and easier to maintain. Precise positioning reduces product defect rates and speeds up the production process, thereby improving overall production efficiency. Reduced mold complexity simplifies maintenance and repair, lowering long-term operating costs.

[0038] In one embodiment of this utility model, please refer to Figure 4 and Figure 5 The positioning device 4 also includes a third needle plate 46, which is located on the side of the second needle plate 45 facing away from the lower mold 22. The third needle plate 46 has a third limiting hole 46a, and the end of the positioning member 421 away from the sleeve cavity 1d is accommodated and limited in the third limiting hole 46a.

[0039] In one embodiment, to further improve the positioning accuracy and operational reliability during the injection molding process, the positioning device 4 is optimized by introducing a third needle plate 46. The third needle plate 46 is fixed to the side of the second needle plate 45 facing away from the lower mold 22, and a third limiting hole 46a is designed on the third needle plate 46. One end of the positioning member 421 is designed to be accommodated and confined within the third limiting hole 46a, thereby ensuring that the positioning member 421 remains in a predetermined position throughout the injection molding cycle, achieving precise control of the part to be molded 3. The configuration of the third needle plate 46 and the third limiting hole 46a provides additional stable support for the positioning member 421, reducing possible displacement under injection pressure and ensuring precise positioning of the part to be molded 3. The introduction of the third needle plate 46 enhances the overall rigidity of the mold, helping it withstand higher injection pressures, thereby expanding the range of materials and product types applicable to the mold. The third limiting hole 46a provides a fixed reference point, simplifying the mold adjustment and calibration process, reducing setup time, and improving production preparation efficiency. The design of the third needle plate 46 helps reduce wear on the positioning element 421, extending its service life and thus reducing maintenance costs and frequency.

[0040] In one embodiment of this utility model, please refer to Figures 5 to 7 The positioning device 4 also includes a movable buckle 47, which abuts against the second needle plate 45 and is slidably connected to the third needle plate 46. The third needle plate 46 can drive the movable buckle 47 to move away from the third needle plate 46 so that the movable buckle 47 is separated from the second needle plate 45.

[0041] In this embodiment, the flexibility and operational sequence of the positioning device 4 are achieved by introducing a movable buckle 47. Specifically, the movable buckle 47 is connected to the third needle plate 46 via a sliding connection mechanism, and the movable buckle 47 moves under the guidance of the third needle plate 46. The other end of the movable buckle 47 is designed to abut against the second needle plate 45. When the mold is closed, the contact between the movable buckle 47 and the second needle plate 45 ensures the precise position of the positioning element 421. When it is necessary to release the positioning element 421 or to perform the mold opening and closing operation, the third needle plate 46 can drive the movable buckle 47 to move away from itself, thereby separating the movable buckle 47 from the second needle plate 45 and releasing the positioning element 421.

[0042] Specifically, during the mold closing process, the third pin plate 46, driven by the motor or cylinder and other driving components 5, drives the movable buckle 47 to abut against the second pin plate 45, thereby enabling the positioning component 421 and the second support component 412 to simultaneously extend into the molding cavity 1d. Since the positioning component 421 needs to penetrate into the positioning hole 3a, the length of the positioning component 421 extending into the molding cavity 1d should be slightly greater than the length of the second support component 412. The length can be determined according to the molded part 3 to be molded, generally 5mm. At this time, the molded part 3 to be molded can be suspended and supported at the same time as positioning. During the injection molding and holding pressure stage, the motor or cylinder drive component 5 drives the third needle plate 46 away from the molding cavity 1d and moves the positioning pin downward by 5mm, so that the positioning pin and the second support component 412 are at the same height. Since there is already plastic material in the molding cavity 1d, it can support the part to be molded 3 inside. Through the holding pressure stage, low-pressure injection molding is completed. The drive component 5 drives the first needle plate 43 and the second needle plate 45 to move, thereby realizing that the first support component 411 and the second support component 412 are separated from the part to be molded 3 and are flush with the inner wall of the injection cavity 1c. Finally, after the holding pressure is completed, the mold can be opened and the product can be removed.

[0043] In one embodiment of this utility model, please refer to Figure 5 and Figure 6 The positioning device 4 also includes a reset member 48, the two ends of which are connected to the movable buckle 47 and the mold frame 1.

[0044] In one embodiment, a reset member 48 is specially designed to ensure the efficient operation and precise control of the positioning device 4. The reset member 48 serves as a connecting element, with one end connected to the movable buckle 47 and the other end fixed to the mold base 1. During the mold opening and closing process, the reset member 48 ensures that the movable buckle 47 automatically returns to its initial position after the mold opens, ready for the next positioning operation. This design typically utilizes the elasticity or mechanical force of the reset member 48 to achieve automatic reset of the movable buckle 47, requiring no additional operation or power source. The addition of the reset member 48 automates the reset process of the movable buckle 47, reducing manual intervention and improving the automation level of mold operation. The automatically reset movable buckle 47 reduces the repositioning time after mold opening, thereby accelerating the production pace and improving overall operational efficiency. The reset member 48 ensures that the movable buckle 47 accurately returns to the predetermined position each time, guaranteeing the consistency and accuracy of positioning during each injection molding process.

[0045] In one embodiment of this utility model, please refer to Figure 4 The die 100 also includes a drive component 5, which is connected to the die frame 1. The drive component 5 can drive the support part 41 and the positioning part 42 to move closer to or away from the die to be died 3.

[0046] In this embodiment, a driving component 5 is introduced to achieve precise control of the support part 41 and the positioning part 42 of the injection molding die 100. The driving component 5 is fixedly connected to the mold base 1 and provides power to the mold through mechanical, hydraulic, or pneumatic means. The driving component 5 can be a servo motor, cylinder, or hydraulic cylinder, etc., and can precisely drive the support part 41 and the positioning part 42 closer to or further away from the part to be molded 3 according to the needs of the injection molding process, so as to achieve rapid and accurate positioning of the part to be molded 3. The introduction of the driving component 5 increases the moving speed of the support part 41 and the positioning part 42, shortens the mold opening and closing cycle, and improves production efficiency. The driving component 5 can precisely control the moving distance of the support part 41 and the positioning part 42, ensuring the precise positioning of the part to be molded 3 during the injection molding process, thereby improving product consistency and quality. Compared with complex mechanical linkage mechanisms, the use of the driving component 5 simplifies the mold structure design and reduces manufacturing costs and maintenance difficulty.

[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and 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 die for die-cutting, characterized in that, include: A mold frame, wherein a mold core cavity and an injection channel are formed within the mold frame; The mold core includes an upper mold and a lower mold, both of which are located within the mold core cavity. The upper mold and the lower mold together form an injection cavity, which is connected to the injection channel. The injection cavity is used to accommodate the part to be molded. as well as A positioning device includes a support part and a positioning part, both of which are slidably connected to the mold core. The support part is used to support the die to be molded so that the die to be molded is enclosed with the upper mold and the lower mold to form a molding cavity. The positioning part is used to position the die to be molded.

2. The die-cutting mold as described in claim 1, characterized in that, The support portion includes a first support member and a second support member. The first support member is slidably connected to the upper mold, and the second support member is slidably connected to the lower mold. The end of the first support member near the molding cavity can extend into the molding cavity and abut against the part to be molded. The end of the second support member near the molding cavity can extend into the molding cavity and abut against the part to be molded.

3. The die-cutting mold as described in claim 2, characterized in that, The die to be molded has a positioning hole, and the positioning part includes a positioning member. The positioning member is slidably connected to the lower die, and one end of the positioning member near the die cavity can be inserted into the positioning hole.

4. The die-cutting mold as described in claim 3, characterized in that, The positioning device further includes a first needle plate, which is located on the side of the upper mold facing away from the lower mold. The first needle plate has a first limiting hole, and the end of the first support member away from the sleeve cavity is accommodated and limited in the first limiting hole.

5. The die-cutting mold as described in claim 4, characterized in that, The first limiting hole has a blind end, and the positioning device includes an elastic element. The two ends of the elastic element are respectively connected to the first support element and the blind end, and the elastic element is located inside the first limiting hole.

6. The die-cutting mold as described in any one of claims 3 to 5, characterized in that, The positioning device further includes a second needle plate, which is located on the side of the lower mold facing away from the upper mold. The second needle plate has a second limiting hole, and the end of the second support member away from the sleeve cavity is accommodated and limited in the second limiting hole.

7. The die-cutting mold as described in claim 6, characterized in that, The positioning device further includes a third needle plate, which is located on the side of the second needle plate facing away from the lower mold. The third needle plate has a third limiting hole, and the end of the positioning member away from the die cavity is accommodated and limited in the third limiting hole.

8. The die-cutting mold as described in claim 7, characterized in that, The positioning device further includes a movable buckle, which is slidably connected to the second needle plate and abuts against the third needle plate; the second needle plate can drive the movable buckle to move away from the second needle plate, so as to separate the movable buckle from the third needle plate.

9. The die-cutting mold as described in claim 8, characterized in that, The positioning device also includes a reset component, the two ends of which are connected to the movable buckle and the mold frame.

10. The die-cutting mold according to any one of claims 1 to 5, characterized in that, The die-cutting mold also includes a driving component, which is connected to the mold frame. The driving component can drive the support part and the positioning part to move closer to or away from the die to be cut.

Images