Plastic waste processing connector injection mold convenient to demold

Abstract

The invention relates to an injection mold, in particular to a convenient-to-demold injection mold for a waste plastic processing connector, which comprises a fixed frame, the die further comprises a bottom die and a peripheral die. Jacking the die; an inner peripheral mold; the top die, the bottom die, the inner peripheral die and the outer peripheral die are matched with one another to form a die cavity; an expansion piece, a lifting piece and a telescopic piece are arranged on the fixed frame; after injection molding is completed and cooling is conducted, the expansion piece can drive the multiple sets of peripheral molds to slide in the first sliding groove to be away from the inner peripheral mold, so that the radial gap between the peripheral molds and the inner peripheral mold is enlarged, and the peripheral molds and the product are separated; after being far away from the set position, the lifting piece can drive the peripheral mold to be far away from the top mold in the vertical direction; the telescopic piece can drive the inner peripheral mold to slide on the fixed rod to be away from the top mold; the inner peripheral mold is separated from the product, and each constituent part of the mold cavity is separated from the formed product in stages and steps, so that the adhesion risk of the product in the demolding process is effectively reduced.

Description

Technical Field

[0001] This invention relates to an injection mold, specifically an injection mold for processing connectors from waste plastic that facilitates demolding. Background Technology

[0002] In the field of waste plastic recycling, injection molding is an important process for processing connector products. During injection molding, molten plastic fills the mold cavity under high pressure, and after cooling and solidification, it adheres tightly to the mold surfaces. Because plastic materials shrink in volume during cooling, they easily form a negative pressure adsorption effect on the inner wall of the cavity. In addition, some plastics have a certain tendency to adhere, so the product often sticks strongly to the mold surface during demolding.

[0003] Common molds are mostly integral or separable molds. Integral molds include cavities composed of a single mold body, such as the top mold, bottom mold and inner mold are machined as one piece. Their advantages are simple structure and low manufacturing cost. Separable molds are composed of multiple relatively movable mold bodies, such as the top mold, bottom mold, inner peripheral mold and outer peripheral mold, etc., and each mold body surrounds the cavity when the mold is closed.

[0004] Whether it is an integral or split mold, the demolding process must rely on ejector pins or push plates to push the product out of the mold cavity as a whole. This can easily cause the product to form strong adhesion to all surfaces of the mold cavity at the same time. It fails to effectively eliminate the vacuum adsorption between the product and the mold cavity, and lacks differentiated demolding control for different parts. As a result, in actual production, problems caused by adhesion, such as product jamming, surface scratches, and deformation of the internal structure, are still common. Summary of the Invention

[0005] The purpose of this invention is to provide an injection mold for processing connectors from waste plastics that is easy to demold, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An injection mold for processing connectors from waste plastics, which facilitates demolding, includes a fixing frame; It also includes a bottom mold fixedly installed on the fixed frame, the bottom mold having multiple sets of first sliding grooves; the bottom mold having multiple sets of outer peripheral molds that can slide and fit with the first sliding grooves; a top mold slidably fitted on the fixed frame; and a fixed rod fixedly installed on the fixed frame, with an inner peripheral mold slidably fitted on the fixed rod. The top mold, the bottom mold, the inner peripheral mold, and multiple sets of outer peripheral molds cooperate with each other to form a mold cavity for forming the connector; The fixed frame is equipped with mutually cooperating expansion members, lifting members, and telescopic members; After injection molding is completed and cooled, the expansion member can drive multiple sets of outer peripheral molds to slide away from the inner peripheral mold in the first groove, thereby widening the radial gap between the outer peripheral mold and the inner peripheral mold, and thus separating the outer peripheral mold from the product; and after moving away to a set position, the lifting member can drive the outer peripheral mold to move away from the top mold in the vertical direction; and the telescopic member can drive the inner peripheral mold to slide away from the top mold on the fixed rod; thereby separating the inner peripheral mold from the product.

[0007] The injection mold for the waste plastic processing connector described above, which facilitates demolding, includes: a rotating sleeve rotatably mounted on the fixed frame and sleeved with the fixed rod; a worm gear fixedly mounted on the rotating sleeve; a worm gear meshing with the worm gear rotatably mounted on the fixed frame, and the worm gear connected to the drive module; and the rotating sleeve connected to the expansion member, the lifting member, and the telescopic member.

[0008] As described above, the injection mold for a waste plastic processing connector that facilitates demolding includes: the expansion member includes a lifting ring that is sleeved with the rotating sleeve; a connecting rod that is rotatably connected to the outer peripheral mold is rotatably mounted on the lifting ring; a second protruding post is fixedly mounted on the lifting ring; and a set of grooves that slide and engage with the second protruding post are provided on the rotating sleeve.

[0009] As described above, the injection mold for a waste plastic processing connector that facilitates demolding includes a groove group comprising a second spiral groove and a transverse groove that are interconnected; wherein when the second protruding post slides in engagement with the second spiral groove, the lifting ring can move axially along the rotating sleeve; and when the second protruding post slides in engagement with the transverse groove, the position of the lifting ring remains unchanged.

[0010] As described above, the injection mold for a waste plastic processing connector that facilitates demolding includes: a lifting frame that can abut against the bottom mold; a second groove aligned with the first groove on the lifting frame; a first baffle and a second baffle fixedly mounted on the lifting frame; a lifting plate sleeved on the rotating sleeve, the lifting plate being located between the first baffle and the second baffle, and a third protruding post fixedly mounted on the lifting plate; a third spiral groove that slides and engages with the third protruding post on the rotating sleeve; the lifting component drives the outer peripheral mold to move vertically away from the top mold at the end of its stroke, and the height of the end of the connecting rod connected to the outer peripheral mold is greater than the height of the end connected to the lifting ring.

[0011] As described above, the injection mold for a waste plastic processing connector that facilitates demolding includes: the lifting component further includes multiple sets of telescopic sleeves fixedly installed on the lifting plate; multiple sets of telescopic columns that slide and engage with the telescopic sleeves are fixedly installed on the first baffle; a retaining spring is provided inside the telescopic sleeve; the two ends of the retaining spring abut against the telescopic column and the lifting plate respectively; when the lifting plate abuts against the second baffle, the second protruding column is located in the transverse groove; when the multiple sets of the outer peripheral molds approach each other, the retaining spring is in a fully compressed state.

[0012] The injection mold for the waste plastic processing connector described above, which facilitates demolding: the telescopic component includes a first protruding post fixedly installed on the rotating sleeve; the inner circumferential mold has a first spiral groove that slides and engages with the first protruding post.

[0013] As described above, the injection mold for a waste plastic processing connector that facilitates demolding includes: a sliding wedge block that slidably engages with the inner circumferential mold on the fixed frame; a fixed wedge block that compresses with the sliding wedge block on the top mold; and a return spring provided within the fixed frame; the two ends of the return spring respectively engage with the fixed frame and the top mold.

[0014] As described above, the injection mold for the waste plastic processing connector that facilitates demolding has a protrusion fixedly installed on one side of the outer peripheral mold and a groove on the other side. When multiple sets of the outer peripheral molds are used together, the protrusion on one outer peripheral mold is matched with the groove on the adjacent outer peripheral mold.

[0015] As described above, the injection mold for a waste plastic processing connector that facilitates demolding has the following features: a sealing protrusion ring is fixedly installed on the top mold, which is used to abut against the outer peripheral mold; and when the inner peripheral mold is engaged with the sliding wedge, the outer peripheral mold is located between the sealing protrusion ring and the inner peripheral mold, and abuts against the sealing protrusion ring, with the side of the sealing protrusion ring closest to the inner peripheral mold being inclined.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows: By setting up mutually cooperating expansion members, lifting members, and telescopic members, the various components of the mold cavity can be separated from the molded product in stages and steps after injection molding and cooling, thereby effectively reducing the risk of product adhesion during demolding; the contact area and adsorption force between the mold and the product can be minimized throughout the demolding process, significantly improving the production efficiency and finished product quality of waste plastic connectors; in particular, by expanding the radial gap between the outer peripheral mold and the inner peripheral mold through the expansion member, an air gap is formed between the product and the side wall of the mold cavity, reducing the vacuum adsorption force generated by tight contact during cooling and shrinkage, effectively preventing the product from getting stuck on the inner wall of the outer peripheral mold; and since multiple sets of outer peripheral molds move synchronously, that is, they separate from the product simultaneously, avoiding the risk of single mold separation. The early detachment of the outer mold prevents uneven stress on the product, stretching, or scratching, thus further reducing the probability of adhesion and damage. The telescopic component separates the inner mold from the inner wall of the product, preventing excessive tightness after the product has fully cooled, thereby reducing the risk of surface scratches or sticking. The smooth vertical demolding of the inner mold ensures that the inner wall of the product is always subjected to uniform, axial release force during demolding, without lateral displacement or local compression, effectively protecting the dimensional accuracy and surface finish of the inner circumference and avoiding deformation, scratches, or burrs caused by improper demolding. The lifting component slides the outer mold downwards after the product separates from the mold, reducing the resistance to picking up the product and effectively reducing the possibility of the product being dragged and stuck during removal, as well as the probability of deformation. Attached Figure Description

[0017] Figure 1 A schematic diagram of the injection mold used to process connectors from waste plastic for easy demolding.

[0018] Figure 2 A cross-sectional view of the injection mold used to process connectors from waste plastic for easy demolding.

[0019] Figure 3 for Figure 2 A schematic diagram of the structure at point A in the middle.

[0020] Figure 4 for Figure 2 A schematic diagram of the structure at point B.

[0021] Figure 5 A schematic diagram of the worm gear and worm wheel structure in an injection mold for processing connectors from waste plastic for easy demolding.

[0022] Figure 6 A schematic diagram of the sliding wedge and fixed wedge in an injection mold for processing connectors from waste plastics to facilitate demolding.

[0023] Figure 7A schematic diagram of the lifting plate structure in an injection mold for processing connectors from waste plastics to facilitate demolding.

[0024] Figure 8 A schematic diagram of the outer peripheral mold in an injection mold for processing connectors from waste plastics to facilitate demolding.

[0025] Figure 9 for Figure 8 A schematic diagram of the structure at point C.

[0026] Figure 10 A schematic diagram of the rotating sleeve in the injection mold for processing connectors from waste plastics to facilitate demolding.

[0027] In the diagram: 1. Fixed frame; 2. Bottom mold; 201. First slide groove; 3. Outer peripheral mold; 4. Fixed rod; 5. Inner peripheral mold; 501. First spiral groove; 6. Rotating sleeve; 601. Second spiral groove; 602. Horizontal groove; 603. First protruding column; 604. Third spiral groove; 7. Connecting rod; 8. Lifting ring; 801. Second protruding column; 9. Lifting frame; 901. Second slide groove; 902. First baffle; 903. Second baffle; 10. Lifting plate; 1001. Third protruding column; 11. Telescopic sleeve; 12. Telescopic column; 13. Clamping spring; 14. Top mold; 1401. Fixed wedge; 15. Return spring; 16. Sliding wedge; 17. Worm; 18. Worm wheel. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0030] Please see Figures 1-10 As an embodiment of the present invention, the injection mold for the waste plastic processing connector that is easy to demold includes a fixed frame 1; It also includes a bottom mold 2 fixedly installed on the fixed frame 1, the bottom mold 2 having multiple sets of first sliding grooves 201; the bottom mold 2 having multiple sets of outer peripheral molds 3 that can slide and fit with the first sliding grooves 201; a top mold 14 slidably fitted on the fixed frame 1; a fixed rod 4 fixedly installed on the fixed frame 1, and an inner peripheral mold 5 slidably fitted on the fixed rod 4; The top mold 14, the bottom mold 2, the inner peripheral mold 5, and the multiple sets of outer peripheral molds 3 cooperate with each other to form the mold cavity for forming the connector; The fixed frame 1 is provided with mutually cooperating expansion members, lifting members and telescopic members; After injection molding is completed and cooled, the expansion member can drive multiple sets of outer peripheral molds 3 to slide away from the inner peripheral mold 5 in the first slide groove 201, thereby widening the radial gap between the outer peripheral mold 3 and the inner peripheral mold 5, thus separating the outer peripheral mold 3 from the product; and after moving away to a set position, the lifting member can drive the outer peripheral mold 3 to move away from the top mold 14 in the vertical direction; and the telescopic member can drive the inner peripheral mold 5 to slide away from the top mold 14 on the fixed rod 4, thereby separating the inner peripheral mold 5 from the product.

[0031] In this embodiment, the fixed frame 1 is used for fixed connection of the injection molding equipment. Multiple sets of outer peripheral molds 3 abut against each other to form the outer wall of the mold cavity. The mold cavity is formed by the mutual sealing and abutment cooperation between the inner peripheral mold 5 (inner peripheral wall of the cavity) and the top mold 14 and the bottom mold 2 (top wall and bottom wall respectively). The injection molding equipment can recycle plastic waste and heat it into a molten state, and then inject it into the cavity. Through the shaping action of the cavity, the designed product is obtained.

[0032] After injection molding is completed and cooled, the mold and the finished product are separated by driving the expansion, lifting and telescopic parts.

[0033] When the expansion component is in operation, multiple sets of outer peripheral molds 3 will slide away from the inner peripheral mold 5 in the first slide groove 201, thereby increasing the radial distance between the outer peripheral mold 3 and the inner peripheral mold 5, so as to achieve the separation of the outer peripheral mold 3 from the product (the product is limited by the inner peripheral mold 5).

[0034] At the same time, the inner peripheral mold 5 will move away from the top mold 14 in the vertical direction, so that the inner peripheral mold 5 gradually separates from the product, and when the inner peripheral mold 5 is completely submerged in the bottom mold 2, the inner peripheral mold 5 releases its limiting effect on the product.

[0035] Furthermore, when the outer peripheral mold 3 moves to the set position, the lifting component will drive the outer peripheral mold 3 away from the top mold 14 in the vertical direction; when the outer peripheral mold 3 is submerged in the horizontal plane of the bottom mold 2, the resistance to picking up the product can be reduced to a limited extent.

[0036] By incorporating cooperating expansion, lifting, and telescopic components, the various parts of the mold cavity can be separated from the molded product in stages and steps after injection molding and cooling, effectively reducing the risk of product adhesion during demolding. This minimizes the contact area and adhesion force between the mold and the product throughout the demolding process, significantly improving the production efficiency and finished product quality of waste plastic connectors. Specifically, by expanding the radial gap between the outer peripheral mold 3 and the inner peripheral mold 5, an air gap is formed between the product and the mold cavity sidewall, reducing the vacuum adhesion force generated by tight contact during cooling and shrinkage, effectively preventing the product from getting stuck on the inner wall of the outer peripheral mold 3. Furthermore, since multiple sets of outer peripheral molds 3 move synchronously, separating from the product simultaneously, it avoids the situation where a single mold set detaches first, thus preventing further damage. Uneven stress on the product, stretching, or scratching can further reduce the probability of adhesion and damage. The telescopic component allows the inner circumferential mold 5 to separate from the inner wall of the product, preventing excessive tightness after the product has completely cooled, thus reducing the risk of the product surface being stretched or sticking to the mold. The smooth demolding of the inner circumferential mold 5 in the vertical direction ensures that the inner wall of the product is always subjected to uniform, axial release force during demolding, without lateral displacement or local compression, thus effectively protecting the dimensional accuracy and surface finish of the inner circumferential mold and avoiding deformation, scratches, or burrs caused by improper demolding. The lifting component drives the outer circumferential mold 3 to slide downward after the product is separated from the mold, reducing the resistance to picking up the product and effectively reducing the possibility of the product being dragged and stuck during removal, as well as the probability of deformation.

[0037] As a further embodiment of the present invention, a rotating sleeve 6 that is sleeved with the fixed rod 4 is rotatably mounted on the fixed frame 1, and a worm gear 18 is fixedly mounted on the rotating sleeve 6; a worm 17 that meshes with the worm gear 18 is rotatably mounted on the fixed frame 1, and the worm 17 is connected to the drive module; the rotating sleeve 6 is connected to the expansion member, the lifting member, and the telescopic member.

[0038] In this embodiment, during the demolding or mold closing process, the worm gear 17 is driven to rotate by the drive module, thereby driving the worm wheel 18 to rotate through meshing, which in turn drives the rotating sleeve 6 to rotate, and drives the lifting component, the expanding component and the telescopic component to move, thereby completing the mutual separation or proximity of the outer peripheral mold 3, and realizing that the inner peripheral mold 5 is inserted into or protrudes from the bottom mold 2; it can effectively reduce the difficulty of mold closing or demolding, and effectively ensure product quality.

[0039] Furthermore, the self-locking action of the worm gear 17 and worm wheel 18 ensures the stability of the cavity after mold closing, preventing poor product quality due to cavity instability.

[0040] As a further embodiment of the present invention, the expansion member includes a lifting ring 8 sleeved with the rotating sleeve 6, a connecting rod 7 rotatably mounted on the lifting ring 8 and rotatably connected to the outer peripheral mold 3, and a second protruding post 801 fixedly mounted on the lifting ring 8; the rotating sleeve 6 is provided with a groove group that slidably engages with the second protruding post 801.

[0041] As a further embodiment of the present invention, the groove group includes a second spiral groove 601 and a transverse groove 602 that are interconnected; wherein when the second protruding post 801 is slidably engaged with the second spiral groove 601, the lifting ring 8 can move axially along the rotating sleeve 6; while when the second protruding post 801 is slidably engaged with the transverse groove 602, the position of the lifting ring 8 remains unchanged.

[0042] In this embodiment, when the rotating sleeve 6 rotates, it can drive the groove group to rotate, and through the sliding and pressing cooperation between the groove group and the second protruding column 801, it can drive the lifting ring 8 to move.

[0043] During demolding, the second protruding post 801 will first slide in the second spiral groove 601. Through the squeezing action of the groove wall of the second spiral groove 601 on the second protruding post 801, the lifting ring 8 can be driven to approach the bottom mold 2 along the axis of the rotating sleeve 6. Thus, the connecting rod 7 drives multiple sets of outer peripheral molds 3 to slide away from the inner peripheral mold 5 in the first sliding groove 201. During this process, the connecting rod 7, the outer peripheral mold 3, and the lifting ring 8 are all rotated and engaged.

[0044] When the second protruding post 801 slides into the transverse groove 602, the second protruding post 801 will slide in the transverse groove 602, and its height position will remain unchanged.

[0045] By expanding the radial gap between the outer peripheral mold 3 and the inner peripheral mold 5 through the expansion component, an air gap is formed between the product and the side wall of the mold cavity. This reduces the vacuum adsorption force generated by the tight fit during the cooling and shrinkage process, effectively preventing the product from getting stuck on the inner wall of the outer peripheral mold 3. Furthermore, since multiple sets of outer peripheral molds 3 move synchronously and separate from the product at the same time, it avoids uneven local stress, stretching, or scratching of the product caused by a single set of molds separating first, thereby further reducing the probability of adhesion and damage.

[0046] As a further embodiment of the present invention, the lifting component includes a lifting frame 9, and the lifting frame 9 is capable of abutting against the bottom mold 2; the lifting frame 9 has a second slide groove 901 aligned with the first slide groove 201; a first baffle 902 and a second baffle 903 are fixedly installed on the lifting frame 9; a lifting plate 10 is sleeved on the rotating sleeve 6, the lifting plate 10 is located between the first baffle 902 and the second baffle 903, and a third protruding post 1001 is fixedly installed on the lifting plate 10; a third spiral groove 604 is provided on the rotating sleeve 6 that slides and engages with the third protruding post 1001; the lifting component drives the outer peripheral mold 3 to move away from the top mold 14 in the vertical direction at the end of its stroke, and the height of the end of the connecting rod 7 connected to the outer peripheral mold 3 is greater than the height of the end connected to the lifting ring 8.

[0047] As a further embodiment of the present invention, the lifting component further includes multiple sets of telescopic sleeves 11 fixedly installed on the lifting plate 10, and multiple sets of telescopic columns 12 that slide and engage with the telescopic sleeves 11 are fixedly installed on the first baffle 902; a retaining spring 13 is provided inside the telescopic sleeve 11; the two ends of the retaining spring 13 abut against the telescopic column 12 and the lifting plate 10 respectively; when the lifting plate 10 abuts against the second baffle 903, the second protruding column 801 is located in the transverse groove 602; when the multiple sets of the outer peripheral molds 3 approach each other, the retaining spring 13 is in a fully compressed state.

[0048] In this embodiment, when the second protruding post 801 slides in the second spiral groove 601 to the connection between its transverse groove 602 and the second spiral groove 601, the outer peripheral mold 3 will slide from the first slide groove 201 to the second slide groove 901.

[0049] In the mold-closed state, the clamping spring 13 is in a fully compressed state. When the rotating sleeve 6 rotates, it will drive the third spiral groove 604 to rotate. Through the squeezing and cooperation between its inner wall and the third protruding column 1001, it will drive the lifting plate 10 away from the bottom mold 2 along the axis of the rotating sleeve 6. Under the elastic force of the clamping spring 13, the telescopic column 12 slides outward in the telescopic sleeve 11. The compression of the clamping spring 13 gradually decreases. The elastic force of the clamping spring 13 keeps the position of the lifting frame 9 unchanged, thereby facilitating the sliding cooperation between the outer peripheral mold 3 and the second slide groove 901. During this process, the second protruding column 801 slides in the second spiral groove 601. When the lifting plate 10 abuts against the second baffle 903, the second protruding column 801 is located in the transverse groove 602.

[0050] Then, the sleeve 6 continues to rotate, thereby driving the lifting plate 10 to continue to move downward, thereby squeezing the second baffle 903, thereby driving the lifting frame 9 to move downward synchronously. During this process, the outer peripheral mold 3 is driven to move downward synchronously through the lifting frame 9, and the outer peripheral mold 3 slides away from the inner peripheral mold 5 in the second slide groove 901. The position of the lifting ring 8 remains unchanged, and the connecting rod 7 rotates. When the horizontal height of the outer peripheral mold 3 is consistent with that of the bottom mold 2, the height of the end of the connecting rod 7 connected to the outer peripheral mold 3 is greater than the height of the end connected to the lifting ring 8.

[0051] After the product is separated from the mold, the lifting component drives the outer peripheral mold 3 to slide downward, thereby reducing the resistance to picking up the product. This effectively reduces the possibility of the product being dragged and stuck during the removal process, as well as the probability of deformation.

[0052] As a further embodiment of the present invention, the telescopic component includes a first protruding post 603 fixedly installed on the rotating sleeve 6; the inner circumferential mold 5 is provided with a first spiral groove 501 that slides and engages with the first protruding post 603.

[0053] In this embodiment, when the rotating sleeve 6 rotates, it can drive the first protruding column 603 to rotate. Through its sliding and pressing cooperation with the first spiral groove 501, it can drive the inner peripheral mold 5 to move along the axial direction of the fixed rod 4, thereby gradually sinking into the bottom mold 2. The telescopic component can separate the inner peripheral mold 5 from the inner wall of the product, which can avoid the formation of an overly tight cover after the product has completely cooled, thereby reducing the risk of the product surface being scratched or sticking to the mold. The smooth demolding of the inner peripheral mold 5 in the vertical direction can ensure that the inner peripheral wall of the product is always subjected to a uniform, axial release force during the demolding process, without lateral displacement or local compression, thereby effectively protecting the inner peripheral dimensional accuracy and surface finish, and avoiding deformation, scratches or burrs caused by improper demolding.

[0054] As a further embodiment of the present invention, a sliding wedge 16 is slidably mounted on the fixed frame 1 to abut against the inner circumferential mold 5; a fixed wedge 1401 is fixedly mounted on the top mold 14 to press against the sliding wedge 16; a return spring 15 is provided inside the fixed frame 1; the two ends of the return spring 15 abut against the fixed frame 1 and the top mold 14 respectively.

[0055] In this embodiment, during the mold closing process, the inner peripheral mold 5 is gradually moved closer to the top mold 14 by the telescopic component. During this process, the top of the inner peripheral mold 5 will squeeze the sliding wedge 16, thereby causing the sliding wedge 16 to move away from each other in its radial direction and squeeze the fixed wedge 1401. Through the squeezing action of the fixed wedge 1401, the top mold 14 can be moved towards the bottom mold 2 and the return spring 15 can be compressed, which can effectively improve the sealing of the cavity and prevent overflow or material shortage during the injection molding process.

[0056] During the demolding process, the inner circumferential mold 5 moves away from the top mold 14. During this process, the top mold 14 is reset by the elastic force of the reset spring 15, thereby causing the sliding wedge block 16 to reset.

[0057] As a further embodiment of the present invention, a protrusion is fixedly installed on one side of the outer peripheral mold 3, and a groove is provided on the other side. When multiple sets of the outer peripheral molds 3 are used together, the protrusion on one outer peripheral mold 3 is matched with the groove on the adjacent outer peripheral mold 3.

[0058] In this embodiment, in the mold-closed state, each set of outer peripheral molds 3 is connected by the interlocking of protrusions and grooves to form a continuous annular outer wall, which together with the inner peripheral mold 5, the top mold 14, and the bottom mold 2 forms a closed molding cavity. The cooperation between the protrusions and grooves not only improves the splicing accuracy between the outer peripheral molds 3 and avoids gaps at the joints that could cause overflow or material shortage, but also enhances the overall structural stability of the mold, ensuring that the mold maintains its shape without deformation under injection pressure.

[0059] During demolding, the expansion component drives each set of outer peripheral molds 3 to slide outward along the first slide groove 201. The interlocking structure of the protrusion and the groove naturally separates during the outward expansion process, without generating additional interference or jamming, thus ensuring smooth and reliable radial expansion of the outer peripheral molds 3. This structure can also effectively disperse the wear generated by the mold during repeated opening and closing, extending the service life of the mold.

[0060] As a further embodiment of the present invention, a sealing protrusion ring is fixedly installed on the top mold 14, the sealing protrusion ring being used to abut against the outer peripheral mold 3; and when the inner peripheral mold 5 is engaged with the sliding wedge block 16, the outer peripheral mold 3 is located between the sealing protrusion ring and the inner peripheral mold 5, and abuts against the sealing protrusion ring, the side of the sealing protrusion ring closest to the inner peripheral mold 5 being inclined.

[0061] In this embodiment, when the mold is closed, the sealing protrusion ring fits tightly against the top outer side of the outer peripheral mold 3 through its inclined surface, thereby forming a reliable top sealing structure, which can effectively prevent molten plastic from overflowing along the upper end of the outer peripheral mold 3 during injection molding. The design of the inclined surface allows the outer peripheral mold 3 to smoothly separate from the sealing protrusion ring when it slides outward under the action of the expansion component, avoiding jamming or scratching and ensuring the smoothness of the radial expansion action.

[0062] Furthermore, the sealing protrusion ring also guides the relative positions of the inner peripheral mold 5 and the outer peripheral mold 3, ensuring their coaxiality during mold closing and preventing problems such as flash, material shortage, or accelerated mold wear caused by eccentricity. During demolding, as the outer peripheral mold 3 slides outward, the contact pressure with the sealing protrusion ring gradually decreases and eventually disengages. At this point, the top mold 14 can be reset by the return spring 15, preparing for the next mold closing.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An injection mold for processing connectors from waste plastics, facilitating demolding, comprising a fixing frame; Its features are, It also includes a bottom mold fixedly installed on the fixed frame, the bottom mold having multiple sets of first sliding grooves; the bottom mold having multiple sets of outer peripheral molds that can slide and fit with the first sliding grooves; a top mold slidably fitted on the fixed frame; and a fixed rod fixedly installed on the fixed frame, with an inner peripheral mold slidably fitted on the fixed rod. The top mold, the bottom mold, the inner peripheral mold, and multiple sets of outer peripheral molds cooperate with each other to form a mold cavity for forming the connector; The fixed frame is equipped with mutually cooperating expansion members, lifting members, and telescopic members; After injection molding is completed and cooled, the expansion member can drive multiple sets of the outer peripheral molds to slide away from the inner peripheral mold in the first groove, thereby widening the radial gap between the outer peripheral mold and the inner peripheral mold, and thus separating the outer peripheral mold from the product; and after moving away to a set position, the lifting member can drive the outer peripheral mold to move away from the top mold in the vertical direction; and the telescopic member can drive the inner peripheral mold to slide away from the top mold on the fixed rod; To separate the inner circumferential mold from the product.

2. The injection mold for processing connectors from waste plastics, as described in claim 1, is characterized in that, A rotating sleeve that is sleeved with the fixed rod is rotatably mounted on the fixed frame, and a worm gear is fixedly mounted on the rotating sleeve; a worm that meshes with the worm gear is rotatably mounted on the fixed frame, and the worm is connected to the drive module; the rotating sleeve is connected to the expansion member, the lifting member, and the telescopic member.

3. The injection mold for processing waste plastic connectors according to claim 2, characterized in that, The expansion member includes a lifting ring that is sleeved with the rotating sleeve. A connecting rod that is rotatably connected to the outer peripheral mold is rotatably mounted on the lifting ring. A second protruding post is fixedly mounted on the lifting ring. The rotating sleeve has a set of grooves that slide and engage with the second protruding post.

4. The injection mold for processing waste plastic connectors according to claim 3, characterized in that, The groove assembly includes a second spiral groove and a transverse groove that are interconnected; when the second protruding post slides in the second spiral groove, the lifting ring can move along the axial direction of the rotating sleeve; while when the second protruding post slides in the transverse groove, the position of the lifting ring remains unchanged.

5. The injection mold for processing connectors from waste plastics, as described in claim 4, is characterized in that, The lifting component includes a lifting frame, which is compatible with the bottom mold; the lifting frame has a second groove aligned with the first groove; a first baffle and a second baffle are fixedly installed on the lifting frame; a lifting plate is sleeved on the rotating sleeve, the lifting plate is located between the first baffle and the second baffle, and a third protruding post is fixedly installed on the lifting plate; a third spiral groove is provided on the rotating sleeve that slides into the third protruding post; the lifting component drives the outer peripheral mold to move away from the top mold in the vertical direction at the end of its stroke, and the height of the end of the connecting rod connected to the outer peripheral mold is greater than the height of the end connected to the lifting ring.

6. The injection mold for processing waste plastic connectors according to claim 5, characterized in that, The lifting component also includes multiple sets of telescopic sleeves fixedly installed on the lifting plate. Multiple sets of telescopic columns that slide and engage with the telescopic sleeves are fixedly installed on the first baffle. A retaining spring is provided inside the telescopic sleeve. The two ends of the retaining spring abut against the telescopic column and the lifting plate, respectively. When the lifting plate abuts against the second baffle, the second protruding column is located in the transverse groove. When the multiple sets of outer peripheral molds approach each other, the retaining spring is in a fully compressed state.

7. The injection mold for processing connectors from waste plastics, as described in claim 2, is characterized in that, The telescopic component includes a first protruding post fixedly installed on the rotating sleeve; the inner circumferential mold has a first spiral groove that slides and engages with the first protruding post.

8. The injection mold for processing connectors from waste plastics, as described in claim 7, is characterized in that... A sliding wedge block that abuts against the inner circumferential mold is slidably mounted on the fixed frame; a fixed wedge block that presses against the sliding wedge block is fixedly mounted on the top mold; a return spring is provided inside the fixed frame; the two ends of the return spring abut against the fixed frame and the top mold, respectively.

9. The injection mold for processing waste plastic connectors according to claim 8, characterized in that, One side of the outer peripheral mold is fixedly installed with a protrusion, and the other side is provided with a groove. When multiple sets of the outer peripheral molds are used together, the protrusion on one outer peripheral mold is matched with the groove on the adjacent outer peripheral mold.

10. The injection mold for processing connectors from waste plastics, as described in claim 1, is characterized in that, A sealing protrusion ring is fixedly installed on the top mold. The sealing protrusion ring is used to abut against the outer peripheral mold. When the inner peripheral mold is engaged with the sliding wedge, the outer peripheral mold is located between the sealing protrusion ring and the inner peripheral mold and abuts against the sealing protrusion ring. The side of the sealing protrusion ring closest to the inner peripheral mold is inclined.

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