A positioning protection mechanism for a mold outer slider forming module implanted in a copper sleeve

Abstract

The application relates to the technical field of mold forming equipment, and discloses a positioning protection mechanism for implanting a copper sleeve into an outer slider forming module of a mold, which comprises a slider base, a driving block, a sleeve rod piece, a core rod piece, a driving pin and a fixing pin, the slider base is placed in a clamping groove of the driving block, and the slider base moves to a predetermined position in the mold along with the driving block; the sleeve rod piece is horizontally slidably connected with the slider base, one end of the sleeve rod piece extending out of the slider base extends towards a mold forming cavity, the other end of the sleeve rod piece extending out of the slider base is located in a driving cavity of the driving block, a first inclined pressing block is vertically and slidably connected in the driving cavity, and the first inclined pressing block drives the sleeve rod piece to move forward in the slider base through an inclined pressing surface; the positioning protection mechanism for implanting the copper sleeve into the outer slider forming module of the mold solves the positioning problem of the copper sleeve terminal in the pre-assembly and injection molding process.

Description

Technical Field

[0001] This invention relates to the field of mold forming equipment technology, and specifically to a positioning and protection mechanism for a mold outer slider forming module with an embedded copper sleeve. Background Technology

[0002] In the injection molding process, see Figure 1 , Figure 2 As shown, copper sleeve terminals often need to be pre-installed into a slider molding module, and then the entire module is implanted into the mold for injection molding. Due to product structure limitations, the mating section between the copper sleeve terminal and the insert positioning part is relatively short, such as... Figure 3 As shown, it is only 1.27mm. Figure 4 As shown, during module placement, the copper sleeve terminals are prone to loosening or even detachment due to the short mating section. Detachment not only results in missing parts in the product, but if it falls onto the mold parting surface, it may also cause a molding accident during mold closing, seriously affecting mold life and production safety. Therefore, a reliable positioning and protection mechanism is needed to ensure the stability of the copper sleeve during insertion and injection molding. Summary of the Invention

[0003] The purpose of this invention is to provide a positioning and protection mechanism for the implantation of a copper sleeve into an outer slider forming module of a mold, so as to solve at least one of the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A positioning and protection mechanism for a mold outer slider forming module implanted in a copper sleeve includes a slider base, a drive block, a sleeve rod, a core rod, a drive pin, and a fixing pin. The slider base is placed in the slot of the drive block, and the slider base moves with the drive block to a predetermined position inside the mold. The sleeve rod is horizontally slidably engaged with the slider base. One end of the sleeve rod extends out of the slider base toward the mold forming cavity, and the other end of the sleeve rod extends out of the slider base and is located in the driving cavity of the driving block. A first inclined pressure block is vertically slidably connected in the driving cavity. The first inclined pressure block drives the sleeve rod to move forward in the slider base through the inclined pressure surface. The core rod is slidably disposed inside the sleeve rod. The sleeve rod is provided with a pin hole and a clearance stroke hole. The core rod is provided with a drive stroke hole and a limit clearance hole. The drive pin passes through the pin hole and the drive stroke hole, and both ends of the drive pin are located in the clearance groove on the slider base. The fixing pin passes through the clearance stroke hole and the limit clearance hole, and both ends of the fixing pin are fixed on the slider base. An elastic reset mechanism is provided between the sleeve rod and the slider base. Under the action of the elastic reset mechanism, the sleeve rod moves backward until the mounting end of the core rod is exposed to the space for installing the copper sleeve terminal. The sleeve rod moves forward in the mold closed state until its front end face presses against the outer wall of the copper sleeve terminal.

[0005] Furthermore, the elastic reset mechanism includes a spring cavity, a stroke cavity, and a linear spring. The spring cavity and the stroke cavity are disposed on the slider base. The inner diameter of the spring cavity is smaller than the inner diameter of the stroke cavity. A limiting plate is provided on the sleeve rod, and the limiting plate is located inside the stroke cavity. The linear spring is disposed between the spring cavity and the limiting plate. A limiting cover plate is provided at the rear end of the stroke cavity. The sleeve rod passes through the limiting cover plate and extends into the drive cavity. The limiting cover plate is used to limit the maximum backward position of the sleeve rod under the action of the linear spring.

[0006] Furthermore, the stroke length of the stroke cavity is greater than the stroke length of the drive stroke hole.

[0007] Furthermore, the stroke length of the stroke cavity and / or the avoidance stroke hole is 4mm, the stroke length of the drive stroke hole is 3mm, and the drive pin moves back 3mm along the drive stroke hole and then abuts against the rear end of the drive stroke hole, causing the core rod to move back 1mm.

[0008] Furthermore, it also includes a second inclined pressure block. Both the first and second inclined pressure blocks are installed on the front mold. During the process of the front mold closing, the first inclined pressure block drives the sleeve rod to move forward in the slider base. During the process of the front mold closing, the second inclined pressure block presses against the driving block and drives the slider base to move forward to a predetermined position in the mold.

[0009] Furthermore, a butterfly-shaped spring sheet is provided between the first inclined pressure block and the front mold to continuously press the sleeve rod in the mold-closed state.

[0010] Furthermore, the slider base is provided with process screws to facilitate the removal of the slider base from the drive block.

[0011] Furthermore, to facilitate the installation of the linear spring, the linear spring is sleeved outside the sleeve rod, with one end of the linear spring abutting against the end wall of the spring cavity and the other end abutting against the limiting plate.

[0012] Furthermore, there is a gap between the fixing pin and the clearance hole to ensure that the movement of the sleeve rod is not interfered with.

[0013] The beneficial effects of this invention are as follows: This technical solution, through the coordinated movement design of the sleeve rod and the core rod, allows the elastic reset mechanism to move the sleeve rod backward until the mounting end of the core rod exposes sufficient space for installing the copper sleeve terminal during pre-installation of the copper sleeve terminal outside the mold, thereby improving the stability of the copper sleeve terminal pre-installation. After mold closing, the sleeve rod moves forward and presses its front end face against the outer wall of the copper sleeve, forming a reliable clamping mechanism, avoiding loosening and detachment problems caused by an excessively short mating section between the copper sleeve and the insert. The copper sleeve terminal is always confined to a predetermined position during insertion and mold closing, preventing it from falling into the mold parting surface or molding area due to detachment, thus avoiding the risk of damaging the mold during mold closing, extending the mold's service life, and ensuring production safety.

[0014] The step-by-step and orderly movement of the sleeve rod and the core rod is achieved through the cooperation of the driving pin and the driving stroke hole, and the fixed pin and the limiting clearance hole. Specifically, the driving pin moves forward with the sleeve rod and drives the core rod forward by abutting against the front end of the driving stroke hole. The driving pin moves backward with the sleeve rod and drives the core rod backward by abutting against the rear end of the driving stroke hole. The core rod moves backward to avoid damaging the rear mold insert when it enters the rear mold after being lifted. The clearance stroke hole plays the role of avoiding the fixed pin during the movement of the sleeve rod 3. The fixed pin and the limiting clearance hole cooperate to prevent the core rod from moving backward when installing the copper sleeve terminal, and at the same time, they play a clearance role when the core rod moves backward.

[0015] In summary, this technical solution solves the positioning problem of copper sleeve terminals during pre-assembly and injection molding, and the retraction of the core rod by a certain distance can prevent the core rod from damaging the rear mold insert when it enters the rear mold after being lifted. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an existing injection-molded product; Figure 2 A schematic diagram of the terminal installation steps for existing injection molded products; Figure 3 This is a partial structural diagram of a sliding block forming module used for positioning copper sleeve terminals. Figure 4 This is a schematic diagram showing the state of the existing copper sleeve terminal being installed in the slider forming module and then placed into the slider seat. Figure 5 This is a schematic diagram of the structure of the present invention in the mold; Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point A; Figure 7 This is a schematic diagram of the structure of the present invention in its installed state; Figure 8 This is a schematic diagram of the structure of some components in this invention; Figure 9 for Figure 8 Another perspective structural diagram of the middle component; Figure 10 for Figure 9 A top-view structural diagram; Figure 11 for Figure 10 Sectional view at point AA; Figure 12 This is a schematic diagram of the sleeve rod and the core rod in this invention; Figure 13 This is a schematic diagram of the structure of the core rod in this invention; Figure 14 This is a cross-sectional view of the sleeve rod in this invention, showing the space left for installation after it is retracted.

[0017] In the diagram: 1. Slider base; 2. Drive block; 3. Sleeve rod; 4. Core rod; 5. Drive pin; 6. Fixing pin; 7. Slot; 8. Drive cavity; 9. First inclined pressure block; 10. Inclined pressure surface; 11. Pin hole; 12. Stroke clearance hole; 13. Drive stroke hole; 14. Limit clearance hole; 15. Clearance groove; 16. Tight copper sleeve terminal; 17. Spring cavity; 18. Stroke cavity; 19. Linear spring; 20. Limiting plate; 21. Limiting cover plate; 22. Second inclined pressure block; 23. Butterfly spring; 24. Process screw; 25. Installation space. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0019] Example 1:

[0020] like Figures 5-14 As shown, this embodiment provides a positioning and protection mechanism for the implantation of a copper sleeve into an external slider forming module of a mold, including a slider base 1, a driving block 2, a sleeve rod 3, a core rod 4, a driving pin 5, and a fixing pin 6. The slider base 1 is placed in the slot 7 of the driving block 2, and the slider base 1 moves with the driving block 2 to a predetermined position inside the mold. The sleeve rod 3 is horizontally slidably engaged with the slider base 1. One end of the sleeve rod 3 extends out of the slider base 1 toward the mold forming cavity, and the other end of the sleeve rod 3 extends out of the slider base 1 and is located in the driving cavity 8 of the driving block 2. The first inclined pressure block 9 is vertically slidably connected in the driving cavity 8. The first inclined pressure block 9 drives the sleeve rod 3 to move forward in the slider base 1 through the inclined pressure surface 10. The core rod 4 is slidably disposed inside the sleeve rod 3. The sleeve rod 3 is provided with a pin hole 11 and a clearance stroke hole 12. The core rod 4 is provided with a drive stroke hole 13 and a limit clearance hole 14. The drive pin 5 passes through the pin hole 11 and the drive stroke hole 13, and both ends of the drive pin 5 are located in the clearance groove 15 on the slider base 1. The fixing pin 6 passes through the clearance stroke hole 12 and the limit clearance hole 14, and both ends of the fixing pin 6 are fixed on the slider base 1. An elastic reset mechanism is provided between the sleeve rod 3 and the slider base 1. Under the action of the elastic reset mechanism, the sleeve rod 3 moves backward until the mounting end of the core rod 4 is exposed to the space for mounting the copper sleeve terminal 16. The sleeve rod 3 moves forward in the mold closing state until its front end face presses against the outer wall of the copper sleeve terminal 16.

[0021] This technical solution, through the coordinated movement design of the sleeve rod 3 and the core rod 4, allows the elastic reset mechanism to move the sleeve rod 3 backward until the mounting end of the core rod 4 exposes sufficient space for installing the copper sleeve terminal 16 when pre-installing it outside the mold, thereby improving the stability of the pre-installation of the copper sleeve terminal 16. After mold closing, the sleeve rod 3 moves forward and presses its front end face against the outer wall of the copper sleeve, forming a reliable clamping, avoiding loosening and falling off due to the short mating section between the copper sleeve and the insert (e.g., only 1.27mm). The copper sleeve terminal 16 is always confined to the predetermined position during insertion and mold closing, preventing it from falling into the mold parting surface or molding area due to detachment, avoiding the risk of damaging the mold during mold closing, extending the mold's service life, and ensuring production safety.

[0022] The step-by-step and orderly movement of the sleeve rod 3 and the core rod 4 is achieved through the cooperation of the driving pin 5 with the driving stroke hole 13 and the fixed pin 6 with the limit clearance hole 14. Specifically, the driving pin 5 moves forward with the sleeve rod 3 and drives the core rod 4 forward (e.g., 1mm) by contacting the front end of the driving pin 5 with the driving stroke hole 13. The driving pin 5 moves backward with the sleeve rod 3 and drives the core rod 4 backward (1mm) by contacting the rear end of the driving pin 5 with the driving stroke hole 13. The core rod 4 moves backward (1mm) to avoid damaging the rear mold insert when the core rod 4 enters the rear mold after being lifted. The clearance stroke hole 12 plays the role of avoiding the fixed pin 6 during the movement of the sleeve rod 3. The fixed pin 6 cooperates with the limit clearance hole 14 to prevent the core rod 4 from moving backward when installing the copper sleeve terminal 16, and at the same time plays a clearance role when the core rod 4 moves backward.

[0023] In summary, this technical solution solves the positioning problem of the copper sleeve terminal 16 during pre-assembly and injection molding, and the core rod 4 can be moved back a certain distance to avoid damaging the rear mold insert when the core rod 4 enters the rear mold after being lifted.

[0024] Example 2:

[0025] This embodiment is an optimization based on the above embodiment one.

[0026] The elastic reset mechanism includes a spring cavity 17, a stroke cavity 18, and a linear spring 19. The spring cavity 17 and the stroke cavity 18 are disposed on the slider base 1. The inner diameter of the spring cavity 17 is smaller than the inner diameter of the stroke cavity 18. A limiting plate 20 is provided on the sleeve rod 3. The limiting plate 20 is located inside the stroke cavity 18. The linear spring 19 is disposed between the spring cavity 17 and the limiting plate 20. A limiting cover plate 21 is provided at the rear end of the stroke cavity 18. The sleeve rod 3 passes through the limiting cover plate 21 and extends into the drive cavity 8. The limiting cover plate 21 is used to limit the maximum backward position of the sleeve rod 3 under the action of the linear spring 19.

[0027] The inner diameter of the spring cavity 17 is smaller than that of the stroke cavity 18. The stepped design of the spring cavity 17 and the stroke cavity 18 provides a stable compression guide for the linear spring 19, avoiding skewing during spring compression and ensuring the accuracy of the retraction stroke of the sleeve rod 3. The cooperation between the limiting cover plate 21 and the limiting plate 20 clearly sets the maximum retraction position of the sleeve rod 3 under the action of the linear spring 19, thereby accurately controlling the length of the installation space 25 exposed at the front end of the core rod 4 (e.g., 3mm), ensuring the stability of the fit when the copper sleeve terminal 16 is installed.

[0028] The linear spring 19, the limiting plate 20, the stroke cavity 18 and the limiting cover plate 21 are all integrated inside the slider base 1. The structure is compact and does not occupy external space, making it suitable for small layouts inside the mold. The linear spring 19 acts directly on the limiting plate 20 on the sleeve rod 3. The thrust is transmitted directly without intermediate links, the reset response is rapid and the action is reliable, and the reset consistency is high in each cycle.

[0029] The detachable design of the limit cover 21 facilitates the installation, replacement or adjustment of the linear spring 19 and makes maintenance convenient; the length of the stroke cavity 18 can be designed and adjusted according to the installation space 25 requirements of different products, making it highly adaptable.

[0030] Example 3:

[0031] This embodiment is an optimization based on the above embodiment two.

[0032] The stroke length of the stroke cavity 18 is greater than the stroke length of the drive stroke hole 13.

[0033] The stroke length of the stroke cavity 18 is greater than the stroke length of the drive stroke hole 13, ensuring that the sleeve rod 3 can retract independently a certain distance under the action of the elastic reset mechanism, and then drive the core rod 4 to retract via the drive pin 5. This design gives the movement of the two rods a clear time difference and stroke difference, thereby realizing the step-by-step movement of the sleeve rod 3 retracting first and the core rod 4 retracting with restriction, providing a stable and controllable operating space for the installation of the copper sleeve terminal 16.

[0034] The difference between the length of the stroke cavity 18 and the length of the drive stroke hole 13 directly determines the size of the exposed space at the front end of the core rod 4 (e.g., 3mm). This size can be precisely set in advance through structural design, thereby ensuring the consistency of the copper sleeve installation position after each mold opening and improving production repeatability.

[0035] Example 4:

[0036] This embodiment is an optimization based on the above embodiment three.

[0037] The stroke length of the stroke cavity 18 and / or the avoidance stroke hole 12 is 4mm, the stroke length of the drive stroke hole 13 is 3mm, the drive pin 5 moves back 3mm along the drive stroke hole 13 and then abuts against the rear end of the drive stroke hole 13 and drives the core rod 4 to move back 1mm.

[0038] The sleeve rod 3 is moved back 4mm and the core rod 4 is moved back 1mm, forming a 3mm travel difference. This 3mm difference provides a stable and sufficient installation space 25 for the copper sleeve terminal 16 at the front end of the core rod 4, ensuring that the copper sleeve terminal 16 can be fully and reliably fitted into the core rod 4, avoiding loosening of the fit due to insufficient installation space 25.

[0039] The design of the core rod 4 being backed by only 1mm ensures the exposure of the installation space 25 while preventing the core rod 4 from damaging the rear mold insert when it enters the rear mold after being lifted.

[0040] Example 5:

[0041] This embodiment is an optimization based on the above embodiment one.

[0042] It also includes a second inclined pressure block 22. Both the first inclined pressure block 9 and the second inclined pressure block 22 are installed on the front mold. During the process of the front mold closing, the first inclined pressure block 9 drives the sleeve rod 3 to move forward in the slider base 1. During the process of the front mold closing, the second inclined pressure block 22 presses against the driving block 2 and drives the slider base 1 to move forward to the predetermined position in the mold.

[0043] The first inclined pressure block 9 drives the sleeve rod 3 to move forward and press the copper sleeve terminal 16. The second inclined pressure block 22 pushes the drive block 2 to drive the slider base 1 to be positioned as a whole. Both are installed on the front mold and can move synchronously during the mold closing process. This achieves coordinated control of the two key actions of slider base 1 being in place and copper sleeve terminal 16 being pressed, ensuring that the position and state of the entire implanted module in the mold are ready at the same time.

[0044] The second inclined pressure block 22 is dedicated to driving the overall movement of the slider base 1, ensuring that the module accurately enters the predetermined position in the mold cavity, and providing a stable structural foundation for subsequent injection molding; the first inclined pressure block 9 focuses on controlling the clamping force of the sleeve rod 3 on the copper sleeve terminal 16. The two functions are separated and do not interfere with each other, which improves the control accuracy and reliability of their respective movements.

[0045] The first inclined pressure block 9 and the second inclined pressure block 22 both rely on the natural movement of the front mold closing to provide driving force, eliminating the need for additional external power devices, simplifying the mold structure, reducing system complexity and manufacturing costs, and improving the synchronization of movement and the consistency of response.

[0046] Example 6:

[0047] This embodiment is an optimization based on the above embodiment five.

[0048] A butterfly-shaped spring piece 23 is provided between the first inclined pressure block 9 and the front mold, which is used to continuously press the sleeve rod 3 in the mold closed state.

[0049] After the mold is closed, the butterfly-shaped spring 23 is compressed, and its elasticity continues to act on the first inclined pressure block 9 and is transmitted to the copper sleeve terminal 16 through the sleeve rod 3. This continuous pressure can effectively compensate for the dimensional tolerance of the copper sleeve terminal 16 in the thickness direction. Even if there are slight thickness differences between copper sleeves of the same batch or different batches, it can ensure that they are stably pressed into the set position, preventing displacement due to the impact of plastic melt or pressure fluctuations during injection molding.

[0050] Compared to rigid drives, the elastic properties of the butterfly spring 23 make the clamping process of the sleeve rod 3 on the copper sleeve smoother, forming a soft contact. This not only avoids damaging the surface of the copper sleeve, but also absorbs some impact energy during the mold closing process. It also acts as a buffer when there are minor errors or interferences in the moving parts, preventing the mechanism from being damaged due to overload, and improving the reliability and service life of the system.

[0051] This design cleverly separates the mold opening reset and mold closing clamping functions. During mold opening, the linear spring 19 (with relatively small elastic force) drives the sleeve rod 3 to reset; during mold closing, the butterfly spring 23 (with preset elastic force greater than that of the linear spring 19) takes over and provides the main clamping force. The two work together without interfering with each other, ensuring the accuracy and reliability of the mechanism under different working conditions.

[0052] The butterfly spring 23, as a standard elastic element, has a compact structure, is easy to install, and requires no complex control or adjustment devices. Its force-displacement characteristics are stable, and it has good fatigue resistance, maintaining stable elastic performance under long-term high-temperature and cyclical working environments in molds, with low maintenance requirements.

[0053] In summary, the butterfly spring 23 solves the problem of unreliable clamping force caused by the thickness fluctuation of the copper sleeve terminal 16, and improves the accuracy and robustness of the entire implantation and positioning process.

[0054] Example 7:

[0055] This embodiment is an optimization based on the above embodiment one.

[0056] The slider base 1 is provided with process screws 24, which facilitates the removal of the slider base 1 from the drive block 2.

[0057] Example 8:

[0058] This embodiment is an optimization based on the above embodiment two.

[0059] To facilitate the installation of the linear spring 19, the linear spring 19 is sleeved on the outside of the sleeve rod 3, with one end of the linear spring 19 abutting against the end wall of the spring cavity 17 and the other end abutting against the limiting plate 20.

[0060] Example 9:

[0061] This embodiment is an optimization based on the above embodiment one.

[0062] There is a gap between the fixing pin 6 and the clearance hole 12 to ensure that the sleeve rod 3 is not interfered with when it moves.

[0063] The movement process of this positioning and protection mechanism is mainly divided into two stages: mold opening (pre-installation of copper sleeve terminal 16) and mold closing (injection molding fixation). Through the precise cooperation between various components, the stable insertion and reliable fixation of the copper sleeve are achieved. The working principle is as follows: 1. Mold opening state (pre-installed copper sleeve terminal 16 stages) Initial conditions: The mold is in the open state, and the slider base 1 is located outside the mold.

[0064] Sleeve rod 3 retracts: Under the action of the elastic reset mechanism (linear spring 19), sleeve rod 3 moves backward relative to slider base 1. Since the fixing pin 6 passes through the clearance stroke hole 12 on sleeve rod 3, and the length of the clearance stroke hole 12 is greater than the diameter of the fixing pin 6, sleeve rod 3 can freely retract a distance (e.g., 4mm).

[0065] Core rod 4 retracts to a limit: When sleeve rod 3 retracts, the drive pin 5 engages with the drive stroke hole 13 on core rod 4, causing core rod 4 to retract as well. When core rod 4 retracts to the point where the fixing pin 6 contacts the front end of its limit clearance hole 14, core rod 4 stops retracting, and its retraction distance is small (e.g., 1mm).

[0066] The installation space 25 is formed by the sleeve rod 3 retracting a greater distance than the core rod 4 retracting a greater distance, resulting in a length difference (e.g., 3mm) between the two, which exposes enough space at the front end of the core rod 4 for manual insertion of the copper sleeve terminal 16.

[0067] Positioning protection: At this time, the fixing pin 6 abuts against the front end of the limit clearance hole 14 to form a mechanical limit, preventing the core rod 4 from continuing to move backward under the action of external force, ensuring that the copper sleeve terminal 16 is stably fitted during installation and there is no risk of falling off.

[0068] 2. Mold closing process (pressing and fixing stage) Module insertion: Push the slider base 1 with pre-installed copper sleeve terminal 16 into the drive block 2 along the slot 7, and place the whole module into the predetermined position in the mold.

[0069] Inclined pressure block drive: The front mold begins to close, and the first inclined pressure block 9 and the second inclined pressure block 22 move with the front mold. The inclined surface of the first inclined pressure block 9 contacts the rear end of the sleeve rod 3, pushing the sleeve rod 3 to move forward against the elastic force of the linear spring 19.

[0070] Sleeve rod 3 moves forward and presses: During the forward movement of sleeve rod 3, its front end gradually approaches and finally presses against the outer wall of copper sleeve terminal 16. Since the butterfly spring 23 is located behind the first inclined pressure block 9, after mold closing, the butterfly spring 23 continuously applies pressure to sleeve rod 3, ensuring that the copper sleeve is always stably pressed during injection molding, which can accommodate even if there are tolerances in the thickness of copper sleeve terminal 16.

[0071] The core rod 4 moves forward synchronously: After the sleeve rod 3 moves forward a certain distance, the drive pin 5 contacts the front end of the drive stroke hole 13, driving the core rod 4 to move forward together to the final mold closing position, completing the complete positioning of the copper sleeve terminal 16.

[0072] The slider is in place: At the same time, the second inclined pressure block 22 presses down on the driving block 2, and the driving block 2 drives the entire slider base 1 and the implantation module to move to the precise forming position inside the mold.

[0073] 3. Mold Closed State (Injection Molding Stage) The copper sleeve is completely fixed: the front end face of the sleeve rod 3 is in close contact with the outer wall of the copper sleeve terminal 16, the core rod 4 supports the inner wall of the copper sleeve terminal 16, and the copper sleeve terminal 16 is bidirectionally limited, with no possibility of loosening.

[0074] The injection molding process is stable: the mold is used for injection molding, and the plastic fills the cavity and wraps the copper sleeve terminal 16. Under the continuous action of the butterfly spring 23, the sleeve rod 3 remains in a compressed state, effectively preventing the copper sleeve terminal 16 from being displaced due to melt impact or pressure changes.

[0075] 4. Reopen the mold (ejection and reset stage) Mold opening and separation: After injection molding is completed, the mold opens, and the first inclined pressure block 9 and the second inclined pressure block 22 move upward with the front mold.

[0076] Spring reset: The linear spring 19 pushes the sleeve rod 3 to reset backward, and the core rod 4 follows suit with the cooperation of the pin and the hole, re-forming the installation space 25, preparing for the pre-installation of the copper sleeve terminal 16 in the next cycle. During the reset process, the core rod 4 retracts 1mm to avoid damaging the rear mold insert when the lifted core rod 4 enters the rear mold.

[0077] Ejecting the product: The ejector system ejects the molded product along with the slider module from the mold surface, completing a full work cycle.

[0078] In summary, this technical solution divides the copper sleeve fixing insert into two parts: sleeve rod 3 and core rod 4. By using different movement distances between sleeve rod 3 and core rod 4, the copper sleeve terminal 16 can be completely fixed and will not fall off. At the same time, it avoids the core rod 4 from damaging the rear mold insert when it enters the rear mold after being lifted.

[0079] By using a combination of linear spring 19 and butterfly spring 23 to control the position of copper sleeve terminal 16 in the mold, the linear spring 19 ensures that the sleeve rod 3 is always in the retracted state when the mold is open. After the mold is closed, the butterfly spring 23 (with a spring force greater than that of the linear spring 19) drives the first inclined pressure block 9 to press against the sleeve rod 3 to press against the copper sleeve terminal 16. Even if the thickness of the copper sleeve terminal 16 is unstable due to the thickness tolerance, the position of the copper sleeve terminal can still be guaranteed to remain unchanged.

[0080] This technical solution achieves step-by-step motion control of the sleeve rod 3 and the core rod 4 through the precise fit of the pin and hole; it achieves automatic mold opening reset and continuous mold closing clamping through the linear spring 19 and the butterfly spring 23; and it achieves precise synchronization with the mold movement through the inclined pressure block drive. The entire motion process is logically clear and reliably controlled, solving the problems of positioning and preventing the copper sleeve terminal 16 from falling off during pre-installation outside the mold and molding inside the mold, thus achieving safe, stable, and efficient production operations.

[0081] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A positioning and protection mechanism for an outer slider forming module of a mold embedded in a copper sleeve, characterized in that: It includes a slider base, a drive block, a sleeve rod, a core rod, a drive pin, and a fixing pin. The slider base is placed in the slot of the drive block, and the slider base moves with the drive block to a predetermined position inside the mold. The sleeve rod is horizontally slidably engaged with the slider base. One end of the sleeve rod extends out of the slider base toward the mold forming cavity, and the other end of the sleeve rod extends out of the slider base and is located in the driving cavity of the driving block. A first inclined pressure block is vertically slidably connected in the driving cavity. The first inclined pressure block drives the sleeve rod to move forward in the slider base through the inclined pressure surface. The core rod is slidably disposed inside the sleeve rod. The sleeve rod is provided with a pin hole and a clearance stroke hole. The core rod is provided with a drive stroke hole and a limit clearance hole. The drive pin passes through the pin hole and the drive stroke hole, and both ends of the drive pin are located in the clearance groove on the slider base. The fixing pin passes through the clearance stroke hole and the limit clearance hole, and both ends of the fixing pin are fixed on the slider base. An elastic reset mechanism is provided between the sleeve rod and the slider base. Under the action of the elastic reset mechanism, the sleeve rod moves backward until the mounting end of the core rod is exposed to the space for installing the copper sleeve terminal. The sleeve rod moves forward in the mold closed state until its front end face presses against the outer wall of the copper sleeve terminal. The elastic reset mechanism includes a spring cavity, a stroke cavity, and a linear spring. The spring cavity and the stroke cavity are disposed on the slider base. The inner diameter of the spring cavity is smaller than the inner diameter of the stroke cavity. A limiting plate is provided on the sleeve rod. The limiting plate is located inside the stroke cavity. The linear spring is disposed between the spring cavity and the limiting plate. A limiting cover plate is provided at the rear end of the stroke cavity. The sleeve rod passes through the limiting cover plate and extends into the drive cavity. The stroke length of the stroke cavity is greater than the stroke length of the drive stroke hole.

2. The positioning and protection mechanism for the implantation of a copper sleeve into an outer slider forming module of a mold, as described in claim 1, is characterized in that: The stroke length of the stroke cavity and / or the avoidance stroke hole is 4mm, the stroke length of the drive stroke hole is 3mm, and the drive pin moves back 3mm along the drive stroke hole and then abuts against the rear end of the drive stroke hole, causing the core rod to move back 1mm.

3. The positioning and protection mechanism for the implantation of a copper sleeve into an outer slider forming module of a mold, as described in claim 1, is characterized in that: It also includes a second inclined pressure block. Both the first and second inclined pressure blocks are installed on the front mold. During the process of the front mold closing, the first inclined pressure block drives the sleeve rod to move forward in the slider base. During the process of the front mold closing, the second inclined pressure block presses against the driving block and drives the slider base to move forward to a predetermined position in the mold.

4. The positioning and protection mechanism for the implantation of a copper sleeve into an outer slider forming module of a mold, as described in claim 3, is characterized in that: A butterfly-shaped spring is provided between the first inclined pressure block and the front mold, which is used to continuously press the sleeve rod in the mold closed state.

5. The positioning and protection mechanism for the implantation of a copper sleeve into an outer slider forming module of a mold, as described in claim 1, is characterized in that: The slider base is equipped with process screws to facilitate the removal of the slider base from the drive block.

6. The positioning and protection mechanism for the implantation of a copper sleeve into an outer slider forming module of a mold, as described in claim 1, is characterized in that: The linear spring is sleeved outside the sleeve rod, with one end of the linear spring abutting against the end wall of the spring cavity and the other end abutting against the limiting plate.

7. The positioning and protection mechanism for the implantation of a copper sleeve into an outer slider forming module of a mold, as described in claim 1, is characterized in that: There is a gap between the fixing pin and the clearance travel hole.

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