Movable mold insert ejection mechanism integrated with gradient cooling channel

Abstract

The utility model relates to the technical field of movable mold inserts, and discloses a movable mold insert ejection mechanism of an integrated gradient cooling channel, which comprises an insert I, the left end of the insert I is connected with an insert II through a sliding tenon, the bottom ends of the insert I and the insert II are both fixedly connected with positioning rods, the bottom ends of the insert I and the insert II are fixedly connected with a fixing assembly, and the fixing assembly is fixedly connected with the left end of the insert I and the right end of the insert II. A movable mold body is arranged on the outer wall of the positioning rod, the inner wall of the movable mold body is connected with the first insert and the second insert through a jacking assembly, and a grouting pipe is fixedly connected to the middle of the inner wall of the movable mold body. According to the utility model, through the design of the threaded sleeve, the threaded rod and the ejector plate, the first insert and the second insert can be jacked, the first insert and the second insert can be separated in cooperation with a modular connection structure of the sliding tenon, and the first sealing ring and the second sealing ring can be used for preventing raw materials from leaking out from a pipeline joint, so that the injection molding pressure is stabilized; and waste products caused by insufficient mold filling are reduced.

Description

Technical Field

[0001] This utility model relates to the field of moving mold insert technology, and in particular to a moving mold insert ejection mechanism with integrated gradient cooling channel. Background Technology

[0002] In the mold manufacturing industry, injection molds are widely used in the molding of plastic products in industries such as automobiles, electronics, and daily necessities. Their performance directly affects product quality, production efficiency, and mold maintenance costs. The moving mold insert, as a core component of the injection mold, undertakes the crucial functions of shaping the molded product and providing cooling channels.

[0003] In existing systems, inserts and the moving mold body are fixedly connected to form an integral structure. When an insert needs to be replaced due to wear, corrosion, or changes in product specifications, the entire mold must be disassembled from the injection molding machine, and all inserts and related components must be disassembled as a whole. The non-modular design makes it impossible to replace a single insert independently; even if only one insert is damaged, the entire mold assembly must be replaced, severely impacting production efficiency. To address this technical problem, this application proposes a moving mold insert ejection mechanism with an integrated gradient cooling channel. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a moving mold insert ejection mechanism with an integrated gradient cooling channel. Through the design of threaded sleeve, threaded rod and ejection plate, insert one and insert two can be lifted. In addition, with the modular connection structure of sliding tenon, insert one and insert two can be separated. The use of sealing ring one and sealing ring two can prevent raw materials from leaking out from the pipe connection, stabilize the injection pressure and reduce waste caused by insufficient mold filling.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An ejection mechanism for a moving mold insert with an integrated gradient cooling channel includes an insert 1. An insert 2 is connected to the left end of insert 1 via a sliding tenon. Positioning rods are fixedly connected to the bottom ends of insert 1 and insert 2. Fixing components are fixedly connected to the bottom ends of insert 1 and insert 2. A moving mold body is provided on the outer wall of the positioning rods. The inner wall of the moving mold body is connected to insert 1 and insert 2 via an ejection component. A grouting pipe is fixedly connected to the middle of the inner wall of the moving mold body. A connecting pipe is provided at the top end of the grouting pipe. The connecting pipe is fixedly connected to the left end of insert 1 and the right end of insert 2. Grouting grooves are provided on the bottom sides of adjacent ends of insert 1 and insert 2.

[0007] Furthermore, the lifting assembly includes two threaded sleeves located on the inner wall of the moving mold body. The inner walls of the two threaded sleeves are threaded with threaded rods, and the top ends of the two threaded rods are rotatably connected to ejector plates. The ejector plate on the left is located at the bottom end of the second insert, and the ejector plate on the right is located at the bottom end of the first insert.

[0008] Furthermore, the fixing component includes a screw located at the bottom end of insert one and insert two, and a nut is threaded onto the outer wall of the screw, the nut being disposed on the inner wall of the moving mold body.

[0009] Furthermore, a sealing ring one is fixedly connected to the top end of the grouting pipe, and the sealing ring one is located at the bottom end of the connecting pipe. A sealing ring two is fixedly connected to the top end of the connecting pipe, and the sealing ring two is located at the bottom end of the insert two.

[0010] Furthermore, both of the threaded rods are rotatably connected to the outer walls of the two threaded rods, and both of the limiting rings are slidably connected to the inner wall of the moving mold body.

[0011] Furthermore, a knob is fixedly connected to the bottom end of each of the two threaded rods.

[0012] Furthermore, both the sealing ring one and the sealing ring two are made of fluororubber.

[0013] Furthermore, a washer is fixedly connected to the top of the nut.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the design of threaded sleeve, threaded rod and ejector plate can lift insert one and insert two, making it easier to remove insert one and insert two from the moving mold body. In addition, with the modular connection structure of sliding tenon, insert one and insert two can be separated. When a certain insert is worn or the product model needs to be changed, it is not necessary to disassemble the entire mold, thereby reducing the cost of spare parts.

[0016] 2. In this utility model, sealing ring one and sealing ring two can prevent raw materials from leaking out from the pipe connection, stabilize the injection pressure, reduce waste caused by insufficient mold filling, and realize simultaneous injection of insert one and insert two through the grouting groove, thereby improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of a moving mold insert ejection mechanism with an integrated gradient cooling channel proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the grouting pipe structure of the moving mold insert ejection mechanism with an integrated gradient cooling channel proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the positioning rod structure of the moving mold insert ejection mechanism with integrated gradient cooling channel proposed in this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of point A;

[0021] Figure 5 for Figure 3 Enlarged view of point B.

[0022] Legend:

[0023] 1. Insert 1; 2. Sliding tenon; 3. Insert 2; 4. Positioning rod; 5. Screw; 6. Moving mold body; 7. Nut; 8. Threaded sleeve; 9. Threaded rod; 10. Ejector plate; 11. Limiting ring; 12. Knob; 13. Grouting pipe; 14. Sealing ring 1; 15. Connecting pipe; 16. Sealing ring 2; 17. Grouting groove. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-3 An embodiment of this utility model provides: a moving mold insert ejection mechanism with integrated gradient cooling channel, including insert 1, insert 2 3 connected to the left end of insert 1 by sliding tenon 2, positioning rod 4 fixedly connected to the bottom end of insert 1 and insert 2 3, screw 5 and nut 7 fixedly connected to the bottom end of insert 1 and insert 2 3, moving mold body 6 provided on the outer wall of positioning rod 4, moving mold body 6 connected to insert 1 and insert 2 3 by two threaded sleeves 8, two threaded rods 9 and two ejection plates 10, grouting pipe 13 fixedly connected to the middle of the inner wall of moving mold body 6, connecting pipe 15 provided at the top end of grouting pipe 13, connecting pipe 15 fixedly connected to the left end of insert 1, connecting pipe 15 provided at the right end of insert 2 3, grouting groove 17 opened on the bottom side of the adjacent end of insert 1 and insert 2 3;

[0026] Specifically, the positioning rod 4 of insert 1 is inserted into the positioning groove of the moving mold body 6, and the connecting pipe 15 and the grouting pipe 13 are sealed by the sealing ring 14. Then, the groove of insert 2 is aligned with the sliding tenon 2 and inserted, the positioning rod 4 is embedded in the positioning groove on the other side of the moving mold body 6, and the end of the connecting pipe 15 is sealed with insert 2 3 by the sealing ring 2 16. The molten raw material is introduced into the grouting pipe 13 through external equipment, and is diverted through the connecting pipe 15 to the grouting groove 17 at the bottom of insert 1 and insert 2 3. It is evenly injected into the molding cavity inside the insert through the groove opening to achieve synchronous filling of the two cavities. The inner walls of insert 1 and insert 2 3 are provided with gradient cooling channels. The flow rate of the coolant in different areas of the channel is dynamically controlled by the flow regulating valve of the cooling medium to form a gradient temperature field.

[0027] Reference Figures 3-5 The moving mold body 6 has two threaded sleeves 8 located on its inner wall. Each threaded sleeve 8 has a threaded rod 9 threadedly connected to its inner wall. Each threaded rod 9 has an ejector plate 10 rotatably connected to its top. The left ejector plate 10 is located at the bottom of insert 2 3, and the right ejector plate 10 is located at the bottom of insert 1 1. Screws 5 are located at the bottom of insert 1 1 and insert 2 3. Nuts 7 are threadedly connected to the outer wall of screws 5. Nuts 7 are located on the inner wall of the moving mold body 6. A sealing valve is fixedly connected to the top of the grouting pipe 13. Ring 14 is located at the bottom of the connecting pipe 15. Ring 216 is fixedly connected to the top of the connecting pipe 15. Ring 216 is located at the bottom of the insert 3. Limiting rings 11 are rotatably connected to the outer walls of the two threaded rods 9. The two limiting rings 11 are slidably connected to the inner wall of the moving mold body 6. Knobs 12 are fixedly connected to the bottom of the two threaded rods 9. Ring 14 and Ring 216 are both made of fluororubber. A washer is fixedly connected to the top of the nut 7.

[0028] Specifically, unscrewing nut 7 releases the screw 5 from fixing the insert. First, the ejector plate 10 lifts insert 2 3, allowing it to be pulled out from the left side of insert 1 1 along the sliding tenon 2. Then, insert 1 1 is lifted separately, achieving quick disassembly of both inserts. This facilitates cleaning the cavity or replacing mold components. The lifting process involves rotating knob 12 to drive threaded rod 9 to rotate within threaded sleeve 8. Due to the limiting ring 11 restricting the axial movement of threaded rod 9, the rotation of threaded rod 9 drives ejector plate 10 to lift vertically, thus ejecting insert 1 1 and insert 2 3 from the moving mold body 6, achieving product demolding. During the ejection process, positioning rod 4 slides along the groove on the inner wall of the moving mold body 6 to ensure vertical movement of the inserts and prevent tilting and jamming. The sealing rings 14 and 16 are made of fluororubber and seal the interfaces between the grouting pipe 13 and the connecting pipe 15 and the insert 3, respectively, to prevent raw material leakage and ensure sealing performance under high-pressure injection molding environment. The inserts 1 and 3 have preset gradient cooling channels inside. The knob 12 facilitates the rotation of the threaded rod 9 to realize the lifting control of the ejector plate 10 without the need for additional power equipment, simplifying the operation process. The limit ring 11 is sleeved on the outer wall of the threaded rod 9 and slidably connected to the inner wall of the moving mold body 6 to limit the radial swing of the threaded rod 9, ensure smooth ejection process, and improve motion accuracy. The washer set at the top of the nut 7 can make the engagement between the screw 5 and the nut 7 more tight.

[0029] Working principle: The raw material for molding is injected into the grouting pipe 13, then into the connecting pipe 15, and finally extruded into the grouting groove 17. The grouting groove 17 then injects the raw material into insert 1 and insert 2. The material is then cooled through gradient cooling channels inside insert 1 and insert 2, enabling simultaneous molding of both cavities. When insert 1 and insert 2 need to be disassembled, first use a tool to unscrew the nut 7 from the screw 5, then place the nut 7 in a suitable position to prevent loss. Next, turn the left knob 12. Turning the left knob 12 will rotate the threaded rod 9. Under the action of the threaded sleeve 8, the rotation of the threaded rod 9 will move the ejector plate 10 upwards, thus lifting insert 2. Insert 2 can then be pulled out from insert 1 via the sliding tenon 2. To remove insert 2 3 from the moving mold body 6, rotate the right knob 12. When the right knob 12 rotates, it will move the ejector plate 10, thereby lifting insert 1 1 through the right ejector plate 10, making it easier to remove insert 1 1 from the moving mold body 6. Conversely, when it is necessary to install insert 1 1 and insert 2 3, first align the positioning rod 4 at the bottom of insert 1 1 with the groove on the moving mold body 6 and insert it. At this time, the connecting pipe 15 at the left end of insert 1 1 will be connected to the grouting pipe 13 and sealed by the sealing ring 14. Then, align the groove on the right side of insert 2 3 with the sliding tenon 2 and the positioning rod 4 at the bottom of insert 2 3 with the groove on the moving mold body 6 and insert it. At this time, the connecting pipe 15 will be connected to insert 2 3 and sealed by the sealing ring 16. Then, take out the nut 7 and rotate the nut 7 onto the screw 5 to fix insert 1 1 and insert 2 3, thus completing the installation of insert 1 1 and insert 2 3.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A moving mold insert ejection mechanism with integrated gradient cooling channels, characterized in that: The device includes a first insert (1), and a second insert (3) is connected to the left end of the first insert (1) via a sliding tenon (2). The bottom ends of the first insert (1) and the second insert (3) are both fixedly connected to a positioning rod (4). The bottom ends of the first insert (1) and the second insert (3) are fixedly connected to a fixing component. The outer wall of the positioning rod (4) is provided with a moving mold body (6). The inner wall of the moving mold body (6) is connected to the first insert (1) and the second insert (3) via a lifting component. The middle part of the inner wall of the moving mold body (6) is fixedly connected to a grouting pipe (13). The top end of the grouting pipe (13) is provided with a connecting pipe (15). The connecting pipe (15) is fixedly connected to the left end of the first insert (1). The connecting pipe (15) is provided at the right end of the second insert (3). The bottom sides of the first insert (1) and the second insert (3) are both provided with grouting grooves (17).

2. The moving mold insert ejection mechanism with integrated gradient cooling channel according to claim 1, characterized in that: The lifting assembly includes two threaded sleeves (8) located on the inner wall of the moving mold body (6). The inner walls of the two threaded sleeves (8) are threaded with threaded rods (9). The top ends of the two threaded rods (9) are rotatably connected to ejector plates (10). The ejector plate (10) on the left is located at the bottom end of the second insert (3), and the ejector plate (10) on the right is located at the bottom end of the first insert (1).

3. The moving mold insert ejection mechanism with integrated gradient cooling channel according to claim 1, characterized in that: The fixing component includes a screw (5) located at the bottom of insert one (1) and insert two (3), and a nut (7) is threaded onto the outer wall of the screw (5), and the nut (7) is disposed on the inner wall of the moving mold body (6).

4. The moving mold insert ejection mechanism with integrated gradient cooling channel according to claim 1, characterized in that: A sealing ring one (14) is fixedly connected to the top end of the grouting pipe (13). The sealing ring one (14) is located at the bottom end of the connecting pipe (15). A sealing ring two (16) is fixedly connected to the top end of the connecting pipe (15). The sealing ring two (16) is located at the bottom end of the insert two (3).

5. The moving mold insert ejection mechanism with integrated gradient cooling channel according to claim 2, characterized in that: Both threaded rods (9) are rotatably connected to limit rings (11) on their outer walls, and both limit rings (11) are slidably connected to the inner wall of the moving mold body (6).

6. The moving mold insert ejection mechanism with integrated gradient cooling channel according to claim 2, characterized in that: A knob (12) is fixedly connected to the bottom end of each of the two threaded rods (9).

7. The moving mold insert ejection mechanism with integrated gradient cooling channel according to claim 4, characterized in that: Both the sealing ring one (14) and the sealing ring two (16) are made of fluororubber.

8. The moving mold insert ejection mechanism with integrated gradient cooling channel according to claim 3, characterized in that: A washer is fixedly connected to the top of the nut (7).

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