Demoulding device for plastic part processing

Abstract

The utility model discloses a demoulding device for plastic part processing, which belongs to the technical field of plastic part processing and comprises a base, a limit guide groove is arranged at the top of the base, a mould frame is movably mounted in the limit guide groove, two ends of the mould frame are movably connected with the base through electric telescopic rods, and a lower mould is arranged in the mould frame. A locking assembly for positioning the position of the mold frame is arranged on one side of the base; the bottom plates are installed on the two sides of the bottom of the base, fixing frames are installed at the bottoms of the bottom plates, and ejection assemblies for demolding plastic parts in the lower mold are arranged on the surfaces of the fixing frames; the mounting frame is mounted at the top of the base; during demolding, the mold can be rapidly moved, feeding and discharging can be carried out at the same time, a forming mold can be conveniently demolded, the injection mold can normally work in the demolding process, and therefore the situation that the demolding efficiency is affected when products adhere to one another is effectively reduced, and the machining efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of plastic parts processing technology, specifically a demolding device for plastic parts processing. Background Technology

[0002] Injection molds are tools used to produce plastic products, giving them a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of complex-shaped parts. Specifically, it involves injecting molten plastic into a mold cavity under high pressure using an injection molding machine, where it cools and solidifies to obtain the molded product. Currently, when demolding, existing injection molds typically require an ejector mechanism at the mold station to eject the product before the mold can be unloaded. However, during demolding, the injection mold cannot function, reducing production efficiency. The mold must be removed promptly before work can resume. Furthermore, if the product sticks together, it can further affect the efficiency of demolding and unloading.

[0003] As disclosed in the prior art, Chinese utility model publication CN209158836U discloses an easy-to-demold injection mold demolding device, including a mold frame assembly and a stripping assembly. The mold frame assembly includes a template, a mold core, and pads. The mold core is fixedly connected to the top surface of the template, and the pads are fixedly connected to the bottom surface of the template. Rotating the nut causes the threaded sleeve to rotate, and the ejector rods threadedly connected to the threaded sleeve rise or fall under the action of the thread, thereby adjusting the ejection height of each telescopic ejector rod according to the product shape. The rotation of the screw achieves the purpose of raising or lowering the top plate, and the rising and falling distance of the top plate can be controlled. When a telescopic ejector rod is worn and deformed, the nut of the telescopic ejector rod can be rotated to completely disengage the ejector rod from the threaded sleeve, and the worn and deformed ejector rod can be pulled out from the top surface of the mold core. A new ejector rod can be inserted from the top surface of the mold core and threadedly connected to the threaded sleeve, saving maintenance and replacement time.

[0004] As can be seen from the above-mentioned injection mold demolding device, the existing technology has the following problems: the injection mold cannot work during the demolding process, which reduces the production efficiency. At the same time, when the product sticks together, it will also affect the demolding and unloading efficiency. Therefore, we need to propose a demolding device for plastic parts processing. Utility Model Content

[0005] The purpose of this utility model is to provide a demolding device for processing plastic parts, which can quickly move the mold during demolding and simultaneously perform loading and unloading operations. It can facilitate demolding of the molding mold and ensure that the injection mold can work normally during the demolding process, thereby effectively reducing the impact of product sticking on demolding efficiency and ensuring processing efficiency, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides: a demolding device for processing plastic parts, comprising a base, a limiting guide groove provided on the top of the base, a mold frame movably mounted inside the limiting guide groove, the two ends of the mold frame being movably connected to the base via electric telescopic rods, a lower mold being disposed inside the mold frame, and a locking component for positioning the mold frame being provided on one side of the base; a base plate installed on both sides of the bottom of the base, a fixing frame installed on the bottom of the base plate, and an ejection component for demolding the plastic parts inside the lower mold being provided on the surface of the fixing frame; and a mounting frame installed on the top of the base, the top of the mounting frame being movably connected to an upper mold via a hydraulic cylinder.

[0007] Preferably, the locking assembly includes: a limiting guide rail connected to both sides of the mold frame, and a locking cylinder installed on one side of the base; wherein, the surface of the limiting guide rail is slidably connected to the inner wall of the limiting guide groove, the limiting guide groove is provided with an assembly groove, and the assembly groove is provided with a connecting block.

[0008] Preferably, a limiting plate is provided on the top of the connecting block, and the surface of the limiting plate is slidably connected to the inner wall of the assembly groove. Positioning holes and positioning slots are respectively provided on both sides of the mold frame.

[0009] Preferably, a positioning block is installed on one side of the connecting block, and the surface of the positioning block is movably inserted into the inner wall of the positioning slot. A locking rod is movably installed on one side of the base, and one end of the locking rod is movably inserted into the inner wall of the positioning hole.

[0010] Preferably, the ejection assembly includes: a lead screw rotatably mounted on the top of the fixed frame, and a drive motor mounted on the bottom of the fixed frame; wherein the output end of the drive motor is connected to the bottom of the lead screw, and a connecting plate is movably mounted on the surface of the lead screw.

[0011] Preferably, the top of the connecting plate is provided with top rods, and the surface of the top rods is slidably inserted into the bottom of the base plate.

[0012] Preferably, the bottom of the upper mold is connected to a connecting guide rod, and the surface of the connecting guide rod is slidably connected to a mounting bracket.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention utilizes a combination of structures including a limiting guide groove, a fixing frame, a mold frame, a lower mold, a locking assembly, and an ejection assembly. After the plastic part is molded, an electric telescopic rod pushes the mold frame, which, in conjunction with the limiting guide rail, can move left and right along the inner wall of the limiting guide groove, moving the molded lower mold to the upper part of the bottom plate. Simultaneously, a locking cylinder pushes the connecting block, locking the positioning block into the positioning slot. The locking rod further enhances the stability of the lower mold on the mold frame. Furthermore, a drive motor drives a lead screw to raise and lower the connecting plate, allowing the ejector rod to eject the plastic part from the lower mold for demolding. This allows for demolding on one side of the lower mold while the other side continues normal operation, further improving processing efficiency and effectively preventing product adhesion during demolding, which would affect demolding efficiency. Attached Figure Description

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the mounting bracket structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing frame structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the mold frame structure of this utility model.

[0019] In the diagram: 1. Base; 2. Limiting guide groove; 3. Assembly groove; 4. Base plate; 5. Fixing frame; 6. Lead screw; 7. Drive motor; 8. Connecting plate; 9. Push rod; 10. Mold frame; 11. Limiting guide rail; 12. Positioning hole; 13. Positioning slot; 14. Lower mold; 15. Locking cylinder; 16. Connecting block; 17. Positioning block; 18. Limiting plate; 19. Mounting bracket; 20. Hydraulic cylinder; 21. Upper mold; 22. Connecting guide rod; 23. Locking rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4This utility model provides: a demolding device for processing plastic parts, including a base 1, a limiting guide groove 2 provided on the top of the base 1, a mold frame 10 movably installed inside the limiting guide groove 2, the two ends of the mold frame 10 being movably connected to the base 1 via electric telescopic rods, a lower mold 14 being provided inside the mold frame 10, a locking component for positioning the mold frame 10 being provided on one side of the base 1; a base plate 4 installed on both sides of the bottom of the base 1, a fixing frame 5 installed on the bottom of the base plate 4, an ejection component for demolding the plastic parts inside the lower mold 14 being provided on the surface of the fixing frame 5; and a mounting frame 19 installed on the top of the base 1, the top of the mounting frame 19 being movably connected to an upper mold 21 via a hydraulic cylinder 20.

[0022] It is worth noting that, through the coordinated arrangement of structures such as the limiting guide groove 2, the fixing frame 5, the mold frame 10, the lower mold 14, the locking assembly, and the ejection assembly, the mold can be moved quickly during demolding, and loading and unloading operations can be performed simultaneously. This facilitates demolding of the molding mold and ensures that the injection mold operates normally during demolding, thereby effectively reducing the impact of product sticking on demolding efficiency and ensuring processing efficiency.

[0023] Specifically, the locking assembly includes: limiting guide rails 11 connected to both sides of the mold frame 10, and a locking cylinder 15 installed on one side of the base 1; wherein, the surface of the limiting guide rail 11 is slidably connected to the inner wall of the limiting guide groove 2, the interior of the limiting guide groove 2 is provided with an assembly groove 3, and the interior of the assembly groove 3 is provided with a connecting block 16. A limiting plate 18 is provided on the top of the connecting block 16, the surface of the limiting plate 18 is slidably connected to the inner wall of the assembly groove 3, and positioning holes 12 and positioning slots 13 are respectively provided on both sides of the mold frame 10.

[0024] Furthermore, the mold frame 10 is a structure for assembling the lower mold 14. The locking cylinder 15 can adjust and push the connecting block 16 so that the positioning block 17 can be locked inside the positioning slot 13 to lock and fix the position of the mold frame 10. The limiting plate 18 works with the assembly slot 3 to guide and limit the connecting block 16.

[0025] A positioning block 17 is installed on one side of the connecting block 16. The surface of the positioning block 17 is movably inserted into the inner wall of the positioning slot 13. A locking rod 23 is movably installed on one side of the base 1. One end of the locking rod 23 is movably inserted into the inner wall of the positioning hole 12. A connecting guide rod 22 is connected to the bottom of the upper mold 21. The surface of the connecting guide rod 22 is slidably connected to the mounting bracket 19.

[0026] In addition, the positioning slot 13 is used in conjunction with the positioning block 17 for positioning, the locking rod 23 is used to assist in fixing the mold frame 10, the positioning hole 12 is a structure that cooperates with the locking rod 23, the mounting bracket 19 is a load-bearing structure for assembling the upper mold 21, and the connecting guide rod 22 is used in conjunction with the hydraulic cylinder 20 to guide the upper mold 21 to rise and fall.

[0027] The ejector assembly includes: a lead screw 6 rotatably mounted on the top of the fixed frame 5, and a drive motor 7 mounted on the bottom of the fixed frame 5; wherein, the output end of the drive motor 7 is connected to the bottom of the lead screw 6, and a connecting plate 8 is movably mounted on the surface of the lead screw 6. Push rods 9 are distributed and connected to the top of the connecting plate 8, and the surface of the push rods 9 is slidably inserted into the bottom of the base plate 4.

[0028] Among them, the fixed frame 5 is a structure for assembling the connecting plate 8, the lead screw 6 is used in conjunction with the fixed frame 5 to play the role of lifting and transmitting the connecting plate 8, the connecting plate 8 is a structure for assembling the ejector rod 9, and the ejector rod 9 is used to eject the material and demold the lower mold 14 that moves to the top of the bottom plate 4.

[0029] After the plastic part is molded, the mold frame 10 can be pushed by the electric telescopic rod. With the help of the limiting guide rail 11, it can move left and right on the inner wall of the limiting guide groove 2, moving the molded lower mold 14 to the upper part of the bottom plate 4. At the same time, the connecting block 16 can be pushed by the locking cylinder 15, and the positioning block 17 can be locked into the positioning slot 13. With the help of the locking rod 23, the stability of the lower mold 14 on the mold frame 10 can be further improved. Furthermore, the connecting plate 8 can be raised and lowered by the drive motor 7 driving the lead screw 6, so that the ejector rod 9 can eject the plastic part inside the lower mold 14 for demolding. This achieves demolding of one side of the lower mold 14 while the other side of the lower mold 14 works normally, further improving the processing efficiency and effectively preventing the product from sticking together during demolding, which would affect the demolding efficiency.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A demolding device for processing plastic parts, characterized in that, include: The base (1) has a limiting guide groove (2) on its top. A mold frame (10) is movably installed inside the limiting guide groove (2). The two ends of the mold frame (10) are movably connected to the base (1) via an electric telescopic rod. A lower mold (14) is provided inside the mold frame (10). A locking component for positioning the mold frame (10) is provided on one side of the base (1). The base plate (4) is installed on both sides of the bottom of the base (1). The bottom of the base plate (4) is equipped with a fixing frame (5). The surface of the fixing frame (5) is provided with an ejection component for demolding the plastic parts inside the lower mold (14). A mounting bracket (19) is installed on the top of the base (1), and the top of the mounting bracket (19) is movably connected to the upper mold (21) via a hydraulic cylinder (20).

2. The demolding device for processing plastic parts according to claim 1, characterized in that: The locking assembly includes: The limiting guide rails (11) connected to both sides of the mold frame (10), and A locking cylinder (15) is installed on one side of the base (1); The surface of the limiting guide rail (11) is slidably connected to the inner wall of the limiting guide groove (2), and the limiting guide groove (2) is provided with an assembly groove (3), and the assembly groove (3) is provided with a connecting block (16).

3. The demolding device for processing plastic parts according to claim 2, characterized in that: The top of the connecting block (16) is provided with a limiting plate (18), and the surface of the limiting plate (18) is slidably connected to the inner wall of the assembly groove (3). The mold frame (10) is provided with positioning holes (12) and positioning slots (13) on both sides respectively.

4. The demolding device for processing plastic parts according to claim 3, characterized in that: A positioning block (17) is installed on one side of the connecting block (16). The surface of the positioning block (17) is movably inserted into the inner wall of the positioning slot (13). A locking rod (23) is movably installed on one side of the base (1). One end of the locking rod (23) is movably inserted into the inner wall of the positioning hole (12).

5. The demolding device for processing plastic parts according to claim 1, characterized in that: The ejection component includes: Rotate the lead screw (6) mounted on the top of the fixed frame (5), and A drive motor (7) is installed at the bottom of the fixed frame (5); The output end of the drive motor (7) is connected to the bottom of the lead screw (6), and a connecting plate (8) is movably mounted on the surface of the lead screw (6).

6. A demolding device for processing plastic parts according to claim 5, characterized in that: The top of the connecting plate (8) is connected to a top rod (9), and the surface of the top rod (9) is slidably inserted into the bottom of the base plate (4).

7. A demolding device for processing plastic parts according to claim 1, characterized in that: The bottom of the upper mold (21) is connected to a connecting guide rod (22), and the surface of the connecting guide rod (22) is slidably connected to the mounting bracket (19).

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