Modular rubber jacket molding and stripping mechanism

Abstract

The application discloses a modular rubber sheath forming and demolding mechanism and relates to the field of rubber sheath forming and demolding. One side of the fixed mold facing the movable mold is provided with a first mold groove, the movable core is connected in the first mold groove, and the movable core comprises an upper mold core and a lower mold core which can be attached to rotate. The driving mechanism comprises a first linear actuator, a T-shaped rod and a connecting rod, the cylinder body of the first linear actuator is fixed with the fixed mold, the push rod of the first linear actuator is connected with the T-shaped rod, the T-shaped rod is connected with the back surfaces of the upper mold core and the lower mold core through the connecting rod, the demolding rod group is arranged in the fixed mold and comprises a second linear actuator and an inclined rod, the cylinder body of the second linear actuator is fixedly connected with the fixed mold, and the push rod of the second linear actuator is fixedly connected with the inclined rod. The modular rubber sheath forming and demolding mechanism can effectively solve the problems of difficult demolding, easy damage of the sheath and difficult batch production of the existing mechanism, and the forming precision of the sheath is improved through the cooperation of the guide structure.

Description

Technical Field

[0001] This application relates to the field of rubber sheath molding and demolding, and in particular to a modular rubber sheath molding and demolding mechanism. Background Technology

[0002] With the development of the game console peripheral industry, full-coverage modular rubber sleeves have gradually replaced traditional sleeves that only cover the back as the mainstream because they can protect both the game console screen bezel and the front button area. These sleeves need to form an inner cavity corresponding to the game console screen area during molding, and the sleeve structure of the front button area needs to fit tightly into the mold. This places higher demands on the adaptability of the molding and demolding mechanism. At present, most of the industry uses a mold structure that combines a traditional fixed mold and a moving mold. However, its core is mostly a fixed integrated design, which can only meet the molding of simple-shaped sleeves and is difficult to adapt to the special inner cavity and edge structure of full-coverage sleeves. Problems such as sleeve jamming and deformation are prone to occur during demolding, affecting production efficiency and product quality.

[0003] However, existing molding and demolding mechanisms have significant technical defects: they rely solely on the opening and closing of the fixed and moving molds, lacking a movable core that can fit and rotate to adapt to the support and demolding requirements of the inner cavity of the sheath. This results in the inner cavity of the sheath being tightly fitted to the fixed core after molding, with the two ends of the sheath fitting onto the two ends of the fixed core, making demolding difficult. Since forced demolding can easily damage the sheath, it is difficult to use automated mechanisms for forced demolding. Generally, manual demolding is used, which is difficult to meet the mass production needs of fully enclosed modular rubber sheaths. In view of this, this paper proposes a modular rubber sheath molding and demolding mechanism. Utility Model Content

[0004] In order to improve the problems of existing molding and demolding mechanisms, which are difficult to demold, easily damaged, and difficult to mass-produce due to the fixed core, this application provides a modular rubber sheath molding and demolding mechanism.

[0005] The modular rubber sheath molding and demolding mechanism provided in this application adopts the following technical solution: A modular rubber sheath molding and demolding mechanism includes a fixed mold, a moving mold, a movable core, a drive mechanism, and two or more demolding rod assemblies; The fixed mold is provided with a first mold groove on the side facing the moving mold, and the movable core is connected in the first mold groove. The movable core includes an upper mold core and a lower mold core that can fit and rotate. The driving mechanism is located inside the fixed mold. The driving mechanism includes a first linear actuator, a T-shaped rod, and two connecting rods. The cylinder of the first linear actuator is fixed to the fixed mold. The push rod of the first linear actuator is connected to the T-shaped rod. The upper and lower ends of the T-shaped rod are respectively connected to the back of the upper mold core and the back of the lower mold core through two connecting rods. The demolding rod assembly is located inside the fixed mold. The demolding rod assembly includes a second linear actuator and a diagonal rod. The cylinder of the second linear actuator is fixedly connected to the fixed mold, and the push rod and diagonal rod of the second linear actuator are fixedly connected.

[0006] By adopting the above technical solution, the first mold groove of the fixed mold and the moving mold cooperate to form a molding cavity. When the upper mold core and the lower mold core of the movable core are in contact, they support the inner cavity of the rubber sheath. The first linear actuator in the drive mechanism drives the upper mold core and the lower mold core to rotate and fold relative to each other through the T-shaped rod and the connecting rod, so that the inner cavities at both ends of the sheath and the outer walls of the upper mold core and the lower mold core in the movable core produce a certain deformation and gap. The second linear actuator of the demolding rod group pushes the inclined rod to extend, pushing the folded sheath away from the movable core. The whole process realizes the efficient molding and smooth demolding of the modular rubber sheath with special shape, avoiding the deformation or damage of the sheath caused by the traditional demolding method.

[0007] Preferably, a connecting block is fixedly connected to the center of the first mold groove, and the connecting block is provided with a first arc guide hole and a second arc guide hole. A first arc guide block is fixedly connected to the back of the upper mold core, and the first arc guide block is slidably adapted to the second arc guide hole. A second arc guide block is fixedly connected to the back of the lower mold core, and the second arc guide block is slidably adapted to the first arc guide hole.

[0008] By adopting the above technical solution, the first arc guide hole of the connecting block cooperates with the second arc guide block, and the second arc guide hole cooperates with the first arc guide block, providing precise guidance for the rotation of the upper mold core and the lower mold core, ensuring that the rotation trajectory of the two is stable and consistent.

[0009] Preferably, guide posts are fixedly connected to the four corners of the fixed mold facing the moving mold, and a straight guide hole is provided on the moving mold at the position corresponding to the guide post, and the guide post slides through the straight guide hole.

[0010] By adopting the above technical solution, the guide post of the fixed mold and the guide hole of the moving mold slide together to ensure that the moving mold moves accurately along the preset trajectory when the mold is closed or opened relative to the fixed mold, thus ensuring the sealing of the mold cavity and the molding accuracy.

[0011] Preferably, the lower surface of the upper mold core and the upper surface of the lower mold core are always in contact with each other near the edge line of the moving mold, and this edge line is the preset rotation axis of the upper mold core and the lower mold core in the movable core.

[0012] By adopting the above technical solution, it is determined that the upper mold core and the lower mold core take the edge line near the moving mold as the axis of rotation, ensuring that the two always move synchronously around the fixed axis when rotating.

[0013] Preferably, the drive mechanism further includes a connecting slide plate, which is connected between the push rod of the first linear actuator and the T-shaped rod.

[0014] By adopting the above technical solution, a connecting slide plate is added to the drive mechanism, so that the thrust of the first linear actuator is smoothly transmitted to the T-shaped rod through the connecting slide plate. This avoids the T-shaped rod from tilting or the connecting rod from becoming unbalanced due to uneven force transmission, thereby enhancing the stability of the drive mechanism and ensuring that the upper and lower mold cores fold synchronously.

[0015] Preferably, the fixed mold is provided with a guide hole groove, and the outer edge of the connecting slide plate is slidably connected to the guide hole groove.

[0016] By adopting the above technical solution, the connecting slide slides along the guide hole groove of the fixed mold, which further constrains the motion trajectory of the connecting slide and ensures that it drives the T-shaped rod to make linear motion, avoiding the inconsistency of the rotation angle of the upper mold core and the lower mold core due to the offset of the drive mechanism.

[0017] Preferably, the inclination angle of the inclined rod of the demolding rod assembly is adapted to the rotation angle of the upper and lower mold cores after folding.

[0018] By adopting the above technical solution, the tilt angle of the slant bar is adapted to the folded upper and lower mold cores, so that when the slant bar extends, it can be accurately aligned with the edge of the screen opening corresponding to the sheath, pushing the sheath away from the movable core.

[0019] Preferably, the end of the inclined rod is provided with an inclined surface.

[0020] By adopting the above technical solution, the inclined surface at the end of the inclined rod is only used for structural adaptation in the contracted state of the inclined rod, which can eliminate the protrusion at the end of the inclined rod, so that the surface of the end of the inclined rod is flush with the inner wall of the first mold groove and forms the same plane, thus avoiding the indentation or interference of the end of the inclined rod on the outer surface of the sheath during the molding process.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. This application completely solves the problems of difficult demolding, easy damage, reliance on manual labor, and difficulty in mass production of fully enclosed modular rubber sleeves by the coordinated action of a movable core that can fit and rotate, a drive mechanism, and a demolding rod assembly. After the sleeve is formed, the first linear actuator of the drive mechanism drives the upper and lower mold cores to fold around a preset axis through a T-shaped rod and a connecting rod, releasing the tight fit between the inner cavity of the sleeve and the movable core. Subsequently, the second linear actuator of the demolding rod assembly pushes the inclined rod to apply force precisely, pushing the sleeve away smoothly without forced demolding. It can be adapted to automated production, avoiding tearing and deformation of the sleeve, and eliminating the efficiency limitations of manual demolding, thus meeting the mass production needs of fully enclosed modular rubber sleeves.

[0022] 2. In this application, the first arc-shaped guide block and the second arc-shaped guide block of the movable core slide and adapt to the second arc-shaped guide hole and the first arc-shaped guide hole of the connecting block, respectively, which strictly limits the rotation trajectory of the upper mold core and the lower mold core, avoids the deformation of the inner cavity of the sheath caused by the shaking of the core, ensures that the inner cavity of the sheath is accurately adapted to the game console screen area, and significantly improves the molding accuracy.

[0023] 3. In this application, the connecting slide of the drive mechanism slides along the guide hole groove of the fixed mold, and the moving path is parallel to the axis of the guide column. This ensures that the power of the first linear actuator is evenly transmitted to the connecting rod through the T-shaped rod, avoiding asynchronous rotation of the upper mold core and the lower mold core. At the same time, the four demolding rod groups are symmetrically distributed at the four corners of the first mold groove, which can be started and applied simultaneously to prevent jamming due to uneven local force. Attached Figure Description

[0024] Figure 1 For the overall illustration of this application Figure 1 ; Figure 2 For the overall illustration of this application Figure 2 ; Figure 3 This is a schematic diagram of the mold structure in this application; Figure 4 This is a cross-sectional view of this application; Figure 5 This is a sectional view of the mold in this application; Figure 6 For this application Figure 5 Enlarged view of circle A in the image; Figure 7 This is a schematic diagram of the demolding rod assembly in this application.

[0025] Figure label: 1. Fixed mold; 11. First mold groove; 12. Guide post; 13. Connecting block; 14. First arc guide hole; 15. Second arc guide hole; 2. Moving mold; 21. Second mold groove; 22. Linear guide hole; 3. Movable core; 31. Upper mold core; 32. Lower mold core; 33. First arc-shaped guide block; 34. Second arc-shaped guide block; 4. Drive mechanism; 41. First linear actuator; 42. Connecting slide; 43. T-bar; 44. Linkage rod; 5. Demolding rod assembly; 51. Second linear actuator; 52. Diagonal bar; 53. Inclined surface. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0027] This application discloses a modular rubber sheath molding and demolding mechanism.

[0028] Reference Figures 1-3 A modular rubber sheath molding and demolding mechanism includes a fixed mold 1, a movable mold 2, and a movable core 3 for supporting the inner cavity of the sheath. The fixed mold 1 has a first mold groove 11 on the side facing the movable mold 2. The shape of the first mold groove 11 is adapted to the outer surface of the front outer ring of the modular rubber sheath. A connecting block 13 is fixedly connected to the center of the first mold groove 11 by bolts. The connecting block 13 has a first arc guide hole 14 and a second arc guide hole 15 machined inside, which provides a guiding foundation for the subsequent rotation of the movable core 3. At the same time, cylindrical guide posts 12 are fixedly connected to the four corners of the fixed mold 1 facing the movable mold 2 by welding. The movable mold 2 has a second mold groove 21 that mates with the first mold groove 11 on the side facing the fixed mold 1. A straight guide hole 22 is opened on the movable mold 2 at a position corresponding to the guide post 12, and the guide post 12 can slide through the straight guide hole 22. By adopting the above structure, the moving mold 2 can move precisely along the axis of the guide post 12 through the linear guide hole 22 during mold closing, ensuring that the first mold groove 11 and the second mold groove 21 are perfectly closed to form a sealed molding cavity for casting the rubber sheath. The connecting block 13 provides an installation and guiding carrier for the movable core 3. The cooperation between the guide post 12 and the linear guide hole 22 effectively avoids the alignment deviation between the fixed mold 1 and the moving mold 2 during mold closing, thus ensuring the molding accuracy of the rubber sheath from the basic structure.

[0029] Reference Figure 3 , Figure 6 The movable core 3 is detachably connected to the first mold groove 11 of the fixed mold 1. It is made entirely of wear-resistant alloy material. The movable core 3 includes an upper mold core 31 and a lower mold core 32. The lower surface of the upper mold core 31 and the upper surface of the lower mold core 32 can rotate and fit together. The lower surface of the upper mold core 31 and the upper surface of the lower mold core 32 are in seamless contact when in contact, and the lower surface of the upper mold core 31 and the upper surface of the lower mold core 32 always maintain close contact near the edge line of the movable mold 2. This edge line is set... The upper mold core 31 and the lower mold core 32 in the movable core 3 are preset rotation axes. In addition, a first arc-shaped guide block 33 is welded and fixedly connected to the back of the upper mold core 31. The shape of the first arc-shaped guide block 33 is adapted to the second arc-shaped guide hole 15 in the connecting block 13 and can slide smoothly in the second arc-shaped guide hole 15. Similarly, a second arc-shaped guide block 34 is welded and fixedly connected to the back of the lower mold core 32. The second arc-shaped guide block 34 is slidably adapted to the first arc-shaped guide hole 14 in the connecting block 13. During the rubber sheath molding stage, the upper mold core 31 and the lower mold core 32 fit together to form a complete core, which supports and shapes the inner cavity of the sheath. When entering the demolding stage, the upper mold core 31 and the lower mold core 32 can rotate relative to each other around a preset rotation axis. At this time, the first arc-shaped guide block 33 slides in the second arc-shaped guide hole 15 and the second arc-shaped guide block 34 slides in the first arc-shaped guide hole 14, which can restrict the rotation trajectory of the upper mold core 31 and the lower mold core 32 and provide folding directions for the two ends of the molded sheath.

[0030] Reference Figure 5 A drive mechanism 4 is located inside the fixed mold 1 near the connecting block 13. The drive mechanism 4 is used to drive the movable core 3 to achieve a folding action. The drive mechanism 4 specifically includes a first linear actuator 41, a connecting slide plate 42, a T-shaped rod 43, and two connecting rods 44 with the same structure. The first linear actuator 41 is preferably a cylinder. The cylinder body is fixedly connected to the inner wall of the fixed mold 1 through a flange. The connecting slide plate 42 is a rectangular metal plate. One end of the connecting slide plate 42 is fixedly connected to the push rod of the first linear actuator 41 through a coupling. The other end of the connecting slide plate 42 is fixedly connected to the head end of the T-shaped rod 43. The upper and lower ends of the T-shaped rod 43 are rotatably connected to the beginning ends of the two connecting rods 44 via pins, and the ends of the two connecting rods 44 are rotatably connected to the back of the upper mold core 31 and the lower mold core 32 via pins. Meanwhile, a rectangular guide hole groove is provided in the fixed mold 1 at the position corresponding to the connecting slide plate 42. The outer edge of the connecting slide plate 42 can slide smoothly in the guide hole groove. The movement path of the connecting slide plate 42 is parallel to the axis of the guide post 12. The central axis of the T-shaped rod 43 and the aforementioned preset rotation axis are on the same plane, and the two connecting rods 44 are symmetrically arranged on both sides of the aforementioned plane. When the movable core 3 needs to be folded, the push rod of the first linear actuator 41 extends or retracts, driving the T-shaped rod 43 to move along the axis of the guide post 12 via the connecting slide plate 42. During the movement of the T-shaped rod 43, the two connecting rods 44 apply tension or push force to the upper mold core 31 and the lower mold core 32 respectively, causing them to rotate and fold synchronously around the preset rotation axis. The sliding of the connecting slide plate 42 in the guide hole groove ensures that the T-shaped rod 43 always moves in a straight line, avoiding asynchronous rotation of the upper mold core 31 and the lower mold core 32 due to force transmission deviation. This driving method can precisely... The folding angle of the movable core 3 is precisely controlled, and the modular rubber sleeve around the movable core 3 is folded at a certain angle. Combined with the elasticity of the rubber sleeve itself, the upper end of the rubber sleeve has an elastic force that allows it to detach upward along the upper mold core 31, and the lower end of the rubber sleeve has an elastic force that allows it to detach downward along the lower mold core 32. This elastic force can, to a certain extent, generate a certain deformation and gap between the inner walls of both ends of the sleeve and the outer walls of the upper mold core 31 and the lower mold core 32, respectively, thus relieving the problem of the inner cavity of the sleeve being tightly fitted with the movable core 3, and laying the foundation for the automated demolding of the demolding rod assembly 5.

[0031] Reference Figure 6 , Figure 7 The first mold groove 11 of the fixed mold 1 is also provided with four demolding rod groups 5. The four demolding rod groups 5 are symmetrically distributed at the four corners of the first mold groove 11, and are used to finally push the rubber sleeve off the movable core 3. Each demolding rod group 5 includes a second linear actuator 51 and a diagonal rod 52. The ends of the four diagonal rods 52 in the four demolding rod groups 5 correspond to the four corners of the opening edge of the game console modular rubber sleeve screen. The second linear actuator 51 is an electric push cylinder, and the cylinder body of the electric push cylinder is fixedly connected to the mounting base inside the fixed mold 1. The push rod of the second linear actuator 51 is fixedly connected to one end of the inclined rod 52 by welding. The inclined rod 52 is made of high-strength metal rod. The tilt angle of the inclined rod 52 is precisely designed to match the rotation angle of the upper mold core 31 and the lower mold core 32 after folding. In this embodiment, the preset rotation angle of the upper mold core 31 and the lower mold core 32 is 45°. Therefore, the included angle between the inclined rod 52 and the inner groove surface of the first mold groove 11 is 45°. In addition, the end of the inclined rod 52 away from the second linear actuator 51 is provided with a smooth inclined surface 53 formed by grinding. After the movable core 3 completes its folding action, the second linear actuator 51 of the four demolding rod groups 5 starts synchronously. Its push rod pushes the inclined rod 52 to extend into the first mold groove 11. Since the inclination angle of the inclined rod 52 is adapted to the folded core, the inclined surface 53 at the end of the inclined rod 52 can closely fit the inner wall of the rubber sleeve. The pushing force is evenly applied from the four corners of the sleeve. The smooth inclined surface 53 can avoid scratching the surface of the sleeve, and at the same time disperse the pushing force to prevent local deformation of the sleeve. The four demolding rod groups 5 operate synchronously, which can smoothly push the rubber sleeve away from the movable core 3, and finally complete the demolding process.

[0032] The implementation principle of the modular rubber sleeve molding and demolding mechanism in this application embodiment is as follows: The modular rubber sleeve molding and demolding mechanism uses a mold closing stage through the coordinated cooperation of a fixed mold 1, a moving mold 2, a movable core 3, a drive mechanism 4, and a demolding rod group 5. The guide column 12 and the linear guide hole 22 ensure precise closure of the mold cavity. The movable core 3 fits and supports the inner cavity of the sleeve. After the modular rubber sleeve is molded, the moving mold 2 is opened. The drive mechanism 4 drives the movable core 3 to fold through the first linear actuator 41, the T-shaped rod 43, and the connecting rod 44. The matching first arc-shaped guide block 33 and the second arc-shaped guide hole 15, the matching second arc-shaped guide block 34, and the first arc-shaped guide hole 14 ensure stable folding trajectory. Finally, the inclined rods 52 of the four demolding rod groups 5 apply force evenly from the four corners to complete the demolding. The entire modular rubber sleeve molding and demolding mechanism specifically solves the demolding problem of the front button area of ​​the rubber sleeve of a fully enclosed game machine, avoiding the deformation and scratches of the sleeve caused by traditional demolding, and significantly improving the molding accuracy and demolding efficiency.

[0033] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A modular rubber sheath molding and demolding mechanism, comprising a fixed mold (1) and a moving mold (2), characterized in that: It also includes a movable core (3), a drive mechanism (4), and two or more demolding rod assemblies (5); The fixed mold (1) has a first mold groove (11) on the side facing the moving mold (2), and the movable core (3) is connected in the first mold groove (11). The movable core (3) includes an upper mold core (31) and a lower mold core (32) that can fit and rotate. The drive mechanism (4) is located inside the fixed mold (1). The drive mechanism (4) includes a first linear actuator (41), a T-shaped rod (43), and two connecting rods (44). The cylinder of the first linear actuator (41) is fixed to the fixed mold (1). The push rod of the first linear actuator (41) is connected to the T-shaped rod (43). The upper and lower ends of the T-shaped rod (43) are connected to the back of the upper mold core (31) and the lower mold core (32) respectively through two connecting rods (44). The demolding rod assembly (5) is located inside the fixed mold (1). The demolding rod assembly (5) includes a second linear actuator (51) and a diagonal rod (52). The cylinder of the second linear actuator (51) is fixedly connected to the fixed mold (1), and the push rod and diagonal rod (52) of the second linear actuator (51) are fixedly connected.

2. The modular rubber sheath molding and demolding mechanism according to claim 1, characterized in that: A connecting block (13) is fixedly connected to the center of the first mold groove (11). The connecting block (13) is provided with a first arc guide hole (14) and a second arc guide hole (15). A first arc guide block (33) is fixedly connected to the back of the upper mold core (31). The first arc guide block (33) and the second arc guide hole (15) are slidably adapted. A second arc guide block (34) is fixedly connected to the back of the lower mold core (32). The second arc guide block (34) and the first arc guide hole (14) are slidably adapted.

3. The modular rubber sheath molding and demolding mechanism according to claim 1, characterized in that: The fixed mold (1) is fixedly connected to four corners on the side facing the moving mold (2). The moving mold (2) is provided with a straight guide hole (22) corresponding to the position of the guide post (12). The guide post (12) slides through the straight guide hole (22).

4. The modular rubber sheath molding and demolding mechanism according to claim 1, characterized in that: The lower surface of the upper mold core (31) and the upper surface of the lower mold core (32) near the edge line of the moving mold (2) are always in contact with each other. This edge line is the preset rotation axis of the upper mold core (31) and the lower mold core (32) in the movable core (3).

5. The modular rubber sheath molding and demolding mechanism according to claim 1, characterized in that: The drive mechanism (4) further includes a connecting slide plate (42), which is connected between the push rod of the first linear actuator (41) and the T-shaped rod (43).

6. The modular rubber sheath molding and demolding mechanism according to claim 5, characterized in that: The fixed mold (1) is provided with a guide hole groove, and the outer edge of the connecting slide plate (42) is slidably connected to the guide hole groove.

7. The modular rubber sheath molding and demolding mechanism according to claim 1, characterized in that: The tilt angle of the inclined rod (52) of the demolding rod group (5) is adapted to the rotation angle of the upper mold core (31) and the lower mold core (32) after folding.

8. The modular rubber sheath molding and demolding mechanism according to claim 1, characterized in that: The end of the diagonal bar (52) is provided with a slope (53).

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