A multi-body hot runner mold

Abstract

The utility model discloses a multi-body hot runner mold, which relates to the field of hot runner technology, including an injection molding machine body, the bottom surface of the injection molding machine body is fixedly connected with a discharge pipe, a hot flow pipeline is arranged below the injection molding machine body, the outer surface of the discharge pipe is plugged into the inside of the hot flow pipeline, a fixing mechanism is arranged below the injection molding machine body, a diversion mechanism is arranged below the injection molding machine body, an upper mold is arranged below the injection molding machine body, a lower mold is arranged below the upper mold, and a guide mechanism is arranged outside the upper mold. It can be easily disassembled by setting a fixing mechanism and a flow channel sealing ring in actual application by using the set fixing mechanism. This innovation greatly improves the replacement speed of damaged flow channel sealing rings by staff, not only significantly improves the maintenance efficiency of the equipment, but also greatly enhances the convenience and fluency of operation, bringing unprecedented convenience to staff.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runners, in particular to a multi-body hot runner mould. Background Art

[0002] Hot runner is a heating component system used in injection molds to inject molten plastic particles into the mold cavity. Hot runners use heating to keep the plastic in the runner and gate molten. Since heating rods and heating rings are set near or in the center of the runner, the entire runner from the injection molding machine nozzle outlet to the gate is in a high temperature state, keeping the plastic in the runner molten.

[0003] According to the patent with publication number CN206825859U, a multi-cavity hot runner mold is disclosed. The multi-cavity hot runner mold includes an injection molding machine body, a manifold, an upper mold and a lower mold; a control box is clamped on the front of the outer wall of the injection molding machine body, a control display screen is clamped on the upper part of the control box, a control keyboard area is clamped on the lower part of the control box, a heating box is bolted on one side of the inner wall of the injection molding machine body, a plurality of mold cavities are opened on one side of the upper mold, one end of a heat flow pipe is connected to one side of the injection molding machine body, the heat flow pipe is sleeved on the middle part of the manifold, one end of a push rod is welded to the middle part of the manifold, a plurality of manifolds are connected between the upper mold and the manifold, and four guide pillars are slidably connected between the upper mold and the lower mold.

[0004] By adopting the above scheme, the function of one mold with multiple cavities can be realized, which greatly improves the work efficiency. However, the above scheme still has certain limitations: in view of the vital role played by the runner sealing ring in the above device, as a wearing part, it needs to be replaced regularly to ensure the tight seal between the hot flow pipe and the injection molding machine body. However, the fixed connection method between the runner sealing ring and the hot flow pipe and the injection molding machine body in the current device constitutes a fastening structure, which significantly increases the difficulty of removing the runner sealing ring, and brings great inconvenience to the staff when they need to replace the damaged runner sealing ring, thereby affecting the maintenance efficiency and operation convenience of the equipment; for this reason, we provide a multi-body hot runner mold to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a multi-body hot runner mold.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-body hot runner mold, including a multi-body hot runner mold, including an injection molding machine body, the bottom surface of the injection molding machine body is fixedly connected with a discharge pipe, a heat flow pipeline is provided below the injection molding machine body, the outer surface of the discharge pipe is plugged into the interior of the heat flow pipeline, a fixing mechanism is provided below the injection molding machine body, a diversion mechanism is provided below the injection molding machine body, an upper mold is provided below the injection molding machine body, a lower mold is provided below the upper mold, a guide mechanism is provided on the outside of the upper mold, a hydraulic rod is installed inside the lower mold, the outer surface of the telescopic end of the hydraulic rod is fixedly connected to the inside of the upper mold, a runner sealing ring is provided below the injection molding machine body, and the runner sealing ring is sleeved on the outer surfaces of the discharge pipe and the heat flow pipeline.

[0007] Furthermore, the fixing mechanism includes a first movable ring and a second movable ring, the interior of the first movable ring is slidably connected to the outer surface of the discharge pipe, the interior of the second movable ring is slidably connected to the outer surface of the heat flow pipe, and the bottom surface of the first movable ring is fixedly connected to a first fixed cover.

[0008] Furthermore, the interior of the first fixed cover is slidably connected to the outer surface of the discharge pipe, the outer surface of the first fixed cover is fixedly connected to two symmetrical first fixed blocks, and the upper surface of the second movable ring is fixedly connected to the second fixed cover.

[0009] Furthermore, the interior of the second fixed cover is slidably connected to the outer surface of the heat flow pipe, and the outer surface of the second fixed cover is fixedly connected to two symmetrical second fixed blocks.

[0010] Furthermore, the upper surfaces of the two second fixing blocks are fixedly connected with fixing screws, the outer surfaces of the two fixing screws are inserted into the interior of the first fixing block, and the outer surfaces of the two fixing screws are threadedly connected with nuts.

[0011] Furthermore, the diversion mechanism includes a diversion box, the bottom end of the hot flow pipe is fixedly connected to the upper surface of the diversion box, the bottom surface of the diversion box is fixedly connected to a group of diversion tubes, the interior of each diversion tube is threadedly connected to a nozzle, the outer surface of each diversion tube is fixedly connected to the interior of the upper mold, and the telescopic end of the hydraulic rod is fixedly connected to the bottom surface of the diversion box.

[0012] Furthermore, the guiding mechanism comprises two symmetrical guide rails, the side surfaces of the two guide rails close to each other are fixedly connected to the outer surface of the lower mold, the interiors of the two guide rails are slidably connected with sliders, and the side surfaces of the two sliders close to each other are fixedly connected to the outer surface of the upper mold.

[0013] Compared with the prior art, the multi-body hot runner mold has the following beneficial effects:

[0014] 1. The utility model sets a fixing mechanism and a flow channel sealing ring. In actual application, the flow channel sealing ring can be easily disassembled by using the fixing mechanism. This innovation greatly improves the replacement speed of damaged flow channel sealing rings by staff, which not only significantly improves the maintenance efficiency of the equipment, but also greatly enhances the convenience and smoothness of operation, bringing unprecedented convenience to the staff.

[0015] 2. The utility model provides a diverter box, a diverter pipe and a nozzle. When in use, the diverter box, the diverter pipe and the nozzle cooperate to achieve the purpose of producing multiple products by one injection molding. At the same time, the connection between the diverter pipe and the nozzle makes it easy for the staff to remove the nozzle for maintenance or replacement. By providing a hydraulic rod, an upper mold, a lower mold, a guide rail and a slider, when in use, the hydraulic rod is turned on to drive the upper mold to move, and the slider is driven to move inside the guide rail, so that the upper mold and the lower mold can be merged or separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is a cross-sectional view of a part of the structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the fixing mechanism of the utility model;

[0020] Figure 5 For this utility model Figure 4 A magnified schematic diagram of the structure at center A;

[0021] Figure 6 It is a schematic diagram of the diversion mechanism of the utility model;

[0022] Figure 7 It is a schematic diagram of the guide mechanism of the utility model.

[0023] In the figure: 1. Injection molding machine body; 2. Discharge pipe; 3. Heat flow pipe; 4. Fixing mechanism; 401. First fixed cover; 402. First movable ring; 403. Second fixed cover; 404. Second movable ring; 405. First fixed block; 406. Second fixed block; 407. Fixed screw; 408. Nut; 5. Diverter mechanism; 501. Diverter box; 502. Diverter pipe; 503. Nozzle; 6. Upper mold; 7. Guide mechanism; 701. Guide rail; 702. Slider; 8. Lower mold; 9. Runner sealing ring; 10. Hydraulic rod. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] The present embodiment provides a multi-body hot runner mold. By setting a fixing mechanism 4 and a runner sealing ring 9, in actual application, the runner sealing ring 9 can be easily and conveniently disassembled by utilizing the set fixing mechanism 4. This innovation greatly improves the speed at which the staff can replace the damaged runner sealing ring 9, which not only significantly improves the maintenance efficiency of the equipment, but also greatly enhances the convenience and smoothness of the operation, bringing unprecedented convenience to the staff.

[0026] Embodiment 1

[0027] like Figure 1-7 As shown, the utility model provides a multi-body hot runner mold, which includes an injection molding machine body 1.

[0028] A feeding port is provided on the upper surface of the injection molding machine body 1 , and a heating component is provided inside the injection molding machine body 1 .

[0029] The bottom surface of the injection molding machine body 1 is fixedly connected with a discharge pipe 2 . A heat flow pipe 3 is arranged below the injection molding machine body 1 . The outer surface of the discharge pipe 2 is inserted into the inside of the heat flow pipe 3 .

[0030] according to Figure 2 and Figure 3 It can be seen that the surfaces of the discharge pipe 2 and the heat flow pipe 3 are provided with retaining rings, which can effectively prevent the first movable ring 402 and the second movable ring 404 from falling off the discharge pipe 2 and the heat flow pipe 3, and the surfaces of the discharge pipe 2 and the heat flow pipe 3 on the side where the two retaining rings are close to each other are provided with placement grooves for placing the flow channel sealing ring 9.

[0031] A fixing mechanism 4 is provided below the injection molding machine body 1 , a flow diversion mechanism 5 is provided below the injection molding machine body 1 , and an upper mold 6 is provided below the injection molding machine body 1 .

[0032] A mold groove is provided on the bottom surface of the upper mold 6, and a protrusion is installed on the upper surface of the lower mold 8. When the two are combined, the gap between the mold groove and the protrusion is the shape of the plastic part to be injection molded. A sealing strip is installed on the bottom surface of the upper mold 6, and a sealing groove is provided on the upper surface of the lower mold 8. When they are combined, the sealing strip is inserted into the sealing groove.

[0033] A lower mold 8 is provided below the upper mold 6, a guide mechanism 7 is provided outside the upper mold 6, a hydraulic rod 10 is installed inside the lower mold 8, the outer surface of the telescopic end of the hydraulic rod 10 is fixedly connected to the inside of the upper mold 6, and a flow channel sealing ring 9 is provided below the injection molding machine body 1, and the flow channel sealing ring 9 is sleeved on the outer surfaces of the discharge pipe 2 and the hot flow pipe 3.

[0034] Embodiment 2

[0035] like Figure 1-7 As shown, this embodiment further illustrates Example 1, the fixing mechanism 4 includes a first movable ring 402 and a second movable ring 404, the interior of the first movable ring 402 is slidably connected to the outer surface of the discharge pipe 2, the interior of the second movable ring 404 is slidably connected to the outer surface of the heat flow pipe 3, and the bottom surface of the first movable ring 402 is fixedly connected to the first fixed cover 401.

[0036] When the inner top wall of the first fixed cover 401 and the inner bottom wall of the second fixed cover 403 are in contact with the retaining ring, the first fixed cover 401 will be in contact with the second fixed cover 403 , and the first fixed block 405 will be in contact with the second fixed block 406 .

[0037] The interior of the first fixed cover 401 is slidably connected to the outer surface of the discharge pipe 2 , the outer surface of the first fixed cover 401 is fixedly connected to two symmetrical first fixed blocks 405 , and the upper surface of the second movable ring 404 is fixedly connected to the second fixed cover 403 .

[0038] The interior of the second fixed cover 403 is slidably connected to the outer surface of the heat flow pipe 3 , and the outer surface of the second fixed cover 403 is fixedly connected to two symmetrical second fixed blocks 406 .

[0039] The upper surfaces of the two second fixing blocks 406 are fixedly connected with fixing screws 407 , the outer surfaces of the two fixing screws 407 are inserted into the inside of the first fixing block 405 , and the outer surfaces of the two fixing screws 407 are threadedly connected with nuts 408 .

[0040] When in use, use a tool to unscrew the nut 408 from the fixed screw 407 to release the limit of the first fixed block 405 and the second fixed block 406, and then move the first movable ring 402 and the second movable ring 404, wherein the movement of the first movable ring 402 drives the first fixed cover 401 to move, drives the first fixed block 405 to move, and the movement of the second movable ring 404 drives the second fixed cover 403 to move, drives the second fixed block 406 to move, and drives the fixed screw 407 to move. Through the above movement, the fixed screw 407 can be separated from the interior of the first fixed block 405, and then, the injection molding machine body 1 is moved upward to separate the discharge pipe 2 from the interior of the hot flow pipe 3, and finally the runner sealing ring 9 is removed from the hot flow pipe 3. This innovation greatly improves the replacement speed of the damaged runner sealing ring 9 by the staff, which not only significantly improves the maintenance efficiency of the equipment, but also greatly enhances the convenience and fluency of the operation, bringing unprecedented convenience to the staff.

[0041] The diversion mechanism 5 includes a diversion box 501. The bottom end of the hot flow pipe 3 is fixedly connected to the upper surface of the diversion box 501. The bottom surface of the diversion box 501 is fixedly connected to a group of diversion tubes 502. The interior of each diversion tube 502 is threadedly connected to a nozzle 503. The outer surface of each diversion tube 502 is fixedly connected to the interior of the upper mold 6. The telescopic end of the hydraulic rod 10 is fixedly connected to the bottom surface of the diversion box 501.

[0042] The connection between the shunt pipe 502 and the nozzle 503 makes it easy for the staff to remove the nozzle 503 for maintenance or replacement.

[0043] When in use, through the cooperation between the diverter box 501, the diverter tube 502 and the nozzle 503, the purpose of producing multiple products by one injection molding can be achieved. At the same time, the connection method between the diverter tube 502 and the nozzle 503 can facilitate the staff to remove the nozzle 503 for maintenance or replacement.

[0044] The guiding mechanism 7 includes two symmetrical guide rails 701, and the side surfaces of the two guide rails 701 close to each other are fixedly connected to the outer surface of the lower mold 8. The interiors of the two guide rails 701 are slidably connected with sliders 702, and the side surfaces of the two sliders 702 close to each other are fixedly connected to the outer surface of the upper mold 6.

[0045] Through the cooperation between the guide rail 701 and the slider 702 , the upper mold 6 can move more stably.

[0046] When in use, the hydraulic rod 10 is turned on to drive the upper mold 6 to move, and the slider 702 to move inside the guide rail 701, so that the upper mold 6 and the lower mold 8 can be merged or separated.

[0047] Working principle: When in use, use a tool to unscrew the nut 408 from the fixed screw 407 to release the limit of the first fixed block 405 and the second fixed block 406, and then move the first movable ring 402 and the second movable ring 404, wherein the movement of the first movable ring 402 drives the first fixed cover 401 to move, drives the first fixed block 405 to move, and the movement of the second movable ring 404 drives the second fixed cover 403 to move, drives the second fixed block 406 to move, and drives the fixed screw 407 to move. Through the above movement, the fixed screw 407 can be separated from the interior of the first fixed block 405, and then, the injection molding machine body 1 is moved upward to separate the discharge pipe 2 from the interior of the hot flow pipe 3, and finally the runner sealing ring 9 is removed from the hot flow pipe 3. This innovation greatly improves the speed of replacing the damaged runner sealing ring 9 by the staff, which not only significantly improves the maintenance efficiency of the equipment, but also greatly enhances the convenience and fluency of operation, bringing unprecedented convenience to the staff.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-body hot runner mold, comprising an injection molding machine body (1), characterized in that: The bottom surface of the injection molding machine body (1) is fixedly connected to a discharge pipe (2), a heat flow pipe (3) is provided below the injection molding machine body (1), the outer surface of the discharge pipe (2) is plugged into the inside of the heat flow pipe (3), a fixing mechanism (4) is provided below the injection molding machine body (1), a flow diversion mechanism (5) is provided below the injection molding machine body (1), an upper mold (6) is provided below the injection molding machine body (1), a lower mold (8) is provided below the upper mold (6), a guide mechanism (7) is provided outside the upper mold (6), a hydraulic rod (10) is installed inside the lower mold (8), the outer surface of the telescopic end of the hydraulic rod (10) is fixedly connected to the inside of the upper mold (6), a flow channel sealing ring (9) is provided below the injection molding machine body (1), and the flow channel sealing ring (9) is sleeved on the outer surfaces of the discharge pipe (2) and the heat flow pipe (3).

2. A multi-body hot runner mold according to claim 1, characterized in that: The fixing mechanism (4) comprises a first movable ring (402) and a second movable ring (404); the interior of the first movable ring (402) is slidably connected to the outer surface of the discharge pipe (2); the interior of the second movable ring (404) is slidably connected to the outer surface of the heat flow pipe (3); and the bottom surface of the first movable ring (402) is fixedly connected to a first fixed cover (401).

3. A multi-body hot runner mold according to claim 2, characterized in that: The interior of the first fixed cover (401) is slidably connected to the outer surface of the discharge pipe (2), the outer surface of the first fixed cover (401) is fixedly connected to two symmetrical first fixed blocks (405), and the upper surface of the second movable ring (404) is fixedly connected to the second fixed cover (403).

4. A multi-body hot runner mold according to claim 3, characterized in that: The interior of the second fixed cover (403) is slidably connected to the outer surface of the heat flow pipe (3), and the outer surface of the second fixed cover (403) is fixedly connected to two symmetrical second fixed blocks (406).

5. A multi-body hot runner mold according to claim 4, characterized in that: The upper surfaces of the two second fixing blocks (406) are fixedly connected with fixing screws (407), the outer surfaces of the two fixing screws (407) are inserted into the interior of the first fixing block (405), and the outer surfaces of the two fixing screws (407) are threadedly connected with nuts (408).

6. The multi-body hot runner mold according to claim 1, characterized in that: The diversion mechanism (5) comprises a diversion box (501), the bottom end of the hot flow pipe (3) is fixedly connected to the upper surface of the diversion box (501), the bottom surface of the diversion box (501) is fixedly connected to a group of diversion tubes (502), the interior of each diversion tube (502) is threadedly connected to a nozzle (503), the outer surface of each diversion tube (502) is fixedly connected to the interior of the upper mold (6), and the telescopic end of the hydraulic rod (10) is fixedly connected to the bottom surface of the diversion box (501).

7. The multi-body hot runner mold according to claim 1, characterized in that: The guide mechanism (7) comprises two symmetrical guide rails (701), the side surfaces of the two guide rails (701) being close to each other are fixedly connected to the outer surface of the lower mold (8), the interiors of the two guide rails (701) are slidably connected with sliders (702), and the side surfaces of the two sliders (702) being close to each other are fixedly connected to the outer surface of the upper mold (6).

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