Cooling water pipeline connecting nozzle for automobile injection mold

The cooling water pipe nozzle for injection molds addresses inefficiencies by allowing quick connection and sealing of pipes of different sizes through a conical cylinder and sealing mechanism, enhancing production efficiency and reducing costs.

CN119217665AInactive Publication Date: 2024-12-31GUANGXI BAOSHIDA MOULD CO LTD
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Patent Information

Application Number
CN202411639138.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2024-12-31
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional cooling water pipe nozzles for injection molds require manual disassembly and multiple nozzle sizes for different specifications, leading to inefficiency and increased production costs.

Method used

A cooling water pipe nozzle with a conical cylinder, rotating wheel, and sealing mechanism that allows for quick connection and sealing of water pipes of different sizes using a movable connecting mechanism and sealing blocks, eliminating the need for multiple nozzle sizes.

Benefits of technology

Enables fast and efficient connection of water pipes of varying specifications without manual disassembly, reducing operational time and costs by ensuring secure sealing without leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of injection molds, and discloses a cooling water pipeline mouthpiece for an automobile injection mold, the cooling water pipeline mouthpiece comprises a cooling water pipe, the side face of the cooling water pipe is movably connected with a conical barrel, the side face, away from the cooling water pipe, of the conical barrel is fixedly connected with a connecting water pipe, and the side face of the connecting water pipe is fixedly connected with a first connecting mechanism; the side face, away from the first connecting mechanism, of the connecting water pipe is fixedly connected with a second connecting mechanism. By arranging the conical barrel, the rotating wheel, the threaded rod and the moving ring, a water pipe is connected to the side face of the conical barrel in a sleeving mode, and water pipes of different sizes can be connected to different positions of the side face of the conical barrel in a sleeving mode, so that connection is completed, one device can adapt to the water pipes of different sizes, and during connection, the rotating wheel is rotated; when the rotating wheel rotates, the movable ring is driven to move through the threaded rod, at the moment, the sealing mechanism in the movable ring covers the connector of the conical barrel and the water pipe, and therefore connection can be rapidly completed.
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Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and more specifically to a cooling water pipeline nozzle for an automobile injection mold. Background Art

[0002] Injection mold is a molding mold that is used for both injection and molding. The advantages of injection molds are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. The shapes of parts in automobiles are relatively complex, so injection molds are often used for production;

[0003] When the injection mold is in production, the molten raw material is injected into the mold through the injection molding machine. After it cools and solidifies, the mold is opened to complete one production. In order to improve the efficiency of raw material solidification and prevent the mold from being in a high temperature state for a long time and being deformed by heat, a cooling pipe needs to be set inside the mold to circulate cooling water inside it to cool it down. The cooling pipeline in the mold is connected to the cooling water compressor through a pipe nozzle to achieve an uninterrupted supply of cooling water. However, the traditional cooling water pipe nozzle has the following problems:

[0004] The cooling pipes of the existing cooling devices for injection molds are mostly one-piece molded pipes. Therefore, when replacing cooling pipes of different specifications, a large number of threaded structures need to be disassembled. At this time, manual replacement will waste a lot of working time, thereby reducing the overall work efficiency of mold injection production. Moreover, cooling pipes of the same specification can only be connected to the water pipes in the water tank through nozzles of fixed sizes. Therefore, nozzles of different sizes are required to complete the connection, thereby increasing the overall cost of mold production. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the implementation rules of the present invention provide a cooling water pipe nozzle for an automobile injection mold to solve the technical problems raised in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: A cooling water pipe nozzle for an automobile injection mold, comprising a cooling water pipe, a tapered cylinder is movably connected to the side of the cooling water pipe, a connecting water pipe is fixedly connected to the side of the tapered cylinder away from the cooling water pipe, a first connecting mechanism is fixedly connected to the side of the connecting water pipe, a second connecting mechanism is fixedly connected to the side of the connecting water pipe away from the first connecting mechanism, a water outlet pipe is movably connected to the other side of the second connecting mechanism, the first connecting mechanism and the second connecting mechanism have the same internal structure, and a moving mechanism and a sealing mechanism are movably connected to the first connecting mechanism and the second connecting mechanism;

[0007] The moving mechanism comprises a rotating wheel, a threaded rod is fixedly connected to the side of the rotating wheel, a moving ring is threadedly connected to the side of the threaded rod, a limiting rod is movably connected inside the corner of the moving ring, a sealing ring is fixedly connected to one side of the limiting rod, and a supporting block is fixedly connected to the other side of the limiting rod;

[0008] The sealing mechanism includes an output gear, and the eight side surfaces of the movable ring all contain output gears. A avoidance groove is opened on the inner side of the first connecting mechanism, and a rack is fixedly connected to the avoidance groove of the first connecting mechanism. The output gear and the rack are meshed with each other. A connecting shaft is fixedly connected to the inside of the output gear, and a first bevel gear is fixedly connected to the side surface of the connecting shaft, and a second bevel gear is meshed on the side surface of the first bevel gear. A threaded shaft is fixedly connected to the bottom end of the second bevel gear, and a threaded barrel is threadedly connected to the side surface of the threaded shaft, and a sealing block is fixedly connected to the side of the threaded barrel away from the threaded shaft.

[0009] In a preferred embodiment, the conical tube itself is the most conical, and the conical tube is set to two layers, the inner layer is a metal layer, and the outer layer is a rubber layer. The water pipe will be sleeved on the outer layer of the conical tube and contact the rubber layer of the conical tube.

[0010] In a preferred embodiment, a regular octagonal through groove is provided inside the first connecting mechanism, a support block is fixedly connected to the inner side of the first connecting mechanism away from the second connecting mechanism, the side surface of the support block is adapted to the mounting groove inside the first connecting mechanism, and a avoidance hole is provided inside the support block for the cooling water pipe to pass through.

[0011] In a preferred embodiment, the inner side of the sealing ring is fixedly connected to the side of the connecting water pipe, the movable ring is located at the junction of the first connecting mechanism and the second connecting mechanism, the movable ring is a regular octagonal ring, the side of the movable ring is adapted to the inner side of the first connecting mechanism, the movable ring has eight edges, seven edges are movably connected to limit rods, and one edge is threadedly connected to a threaded rod.

[0012] In a preferred embodiment, the number of the sealing blocks is eight, and the eight sealing blocks are distributed on the edge surface on the inner side of the moving ring. The sealing blocks are alternately distributed on the side of the conical cylinder, and the distances between different sealing blocks and the side of the conical cylinder are the same.

[0013] In a preferred embodiment, the side of the sealing block close to the movable ring is fixedly connected with a support rod, the side of the support rod away from the sealing block is fixedly connected with a limiting block, the side of the limiting block is movably sleeved with a limiting cylinder, and the side of the limiting cylinder away from the limiting block is fixedly connected to the inner side of the movable ring.

[0014] In a preferred embodiment, the sealing block includes a connecting block and an arc block, the side of the arc block away from the connecting block is adapted to the side of the conical tube, and the arc angle formed by the arc block and the central axis of the conical tube is sixty degrees.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention is provided with a conical cylinder, a rotating wheel, a threaded rod, and a moving ring. The water pipe is sleeved on the side of the conical cylinder, and water pipes of different sizes can be sleeved at different positions on the side of the conical cylinder to complete the connection. Therefore, one device can adapt to water pipes of different sizes. When connecting, the rotating wheel is rotated. When the rotating wheel rotates, the moving ring is driven to move through the threaded rod. At this time, the sealing mechanism in the moving ring covers the interface between the conical cylinder and the water pipe, so that the connection can be completed quickly;

[0017] 2. The present invention is provided with an output gear, a first bevel gear, a threaded cylinder, and a sealing block. When the rotating wheel rotates, the threaded rod drives the moving ring to move. When the moving ring moves, the output gear inside it is driven to move. The output gear is meshed with the rack, so the output gear rotates. When the output gear rotates, it drives the threaded shaft to rotate after being driven by the first bevel gear and the second bevel gear. When the threaded shaft rotates, the sealing block moves through the threaded cylinder. The sealing block contacts the water pipe and fixes the water pipe on the side of the conical cylinder, so that it is automatically sealed.

[0018] 3. The present invention is provided with an arc block that is adapted to the side of the conical tube, so when the arc block fixes the water pipe on the side of the conical tube, it fits more closely, and eight sealing blocks including the arc block are provided. The eight sealing blocks are alternately distributed on the side of the conical tube, and the eight sealing blocks overlap with each other, so that the water pipe can be sealed and no water will flow out from the junction of the sealing blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic cross-sectional view of the overall internal structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the mobile mechanism of the present invention.

[0022] Figure 4 It is a schematic diagram of the internal structure of the connecting mechanism of the present invention.

[0023] Figure 5 It is a schematic diagram of the sealing mechanism structure of the present invention.

[0024] Figure 6 It is an exploded schematic diagram of the internal structure of the sealing mechanism of the present invention.

[0025] Figure 7 It is a schematic diagram of the sealing block structure of the present invention.

[0026] The accompanying drawings are marked as follows: 1. cooling water pipe; 2. first connecting mechanism; 3. connecting water pipe; 4. second connecting mechanism; 5. water outlet pipe; 6. moving mechanism; 601. rotating wheel; 602. threaded rod; 603. moving ring; 604. limiting rod; 605. sealing ring; 7. sealing mechanism; 701. output gear; 702. connecting shaft; 703. first bevel gear; 704. second bevel gear; 705. threaded shaft; 706. threaded cylinder; 707. sealing block; 7071. connecting block; 7072. arc block; 708. limiting cylinder; 709. support rod; 710. limiting block; 8. support block; 9. conical cylinder; 10. rack. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are only examples. The cooling water pipe nozzle for an automobile injection mold involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0028] Reference Figure 1 and Figure 2 The present invention provides a cooling water pipe nozzle for an automobile injection mold, comprising a cooling water pipe 1, a tapered cylinder 9 is movably connected to the side of the cooling water pipe 1, a connecting water pipe 3 is fixedly connected to the side of the tapered cylinder 9 away from the cooling water pipe 1, a first connecting mechanism 2 is fixedly connected to the side of the connecting water pipe 3, a second connecting mechanism 4 is fixedly connected to the side of the connecting water pipe 3 away from the first connecting mechanism 2, a water outlet pipe 5 is movably connected to the other side of the second connecting mechanism 4, the first connecting mechanism 2 and the second connecting mechanism 4 have the same internal structure, and the first connecting mechanism 2 and the second connecting mechanism 4 are movably connected with a moving mechanism 6 and a sealing mechanism 7, the conical cylinder 9 itself is conical, and the conical cylinder 9 is set to two layers, the inner layer is a metal layer, and the outer layer is a rubber layer. The water pipe will be sleeved on the outer layer of the conical cylinder 9 and contact with the rubber layer of the conical cylinder 9. The interior of the first connecting mechanism 2 has a regular octagonal through groove, and the inner side of the first connecting mechanism 2 away from the second connecting mechanism 4 is fixedly connected with a support block 8, the side of the support block 8 is adapted to the mounting groove inside the first connecting mechanism 2, and the interior of the support block 8 is provided with a avoidance hole for the cooling water pipe 1 to pass through.

[0029] In the embodiment of the present application, the first connecting mechanism 2 and the second connecting mechanism 4 have the same structure, so the first connecting mechanism 2 can be connected to cooling water pipes 1 of different sizes, and the second connecting mechanism 4 can be connected to water outlet pipes 5 of different sizes, so that one device can be connected to water pipes of different specifications, without preparing multiple nozzles, and the operation is more convenient. A regular octagonal through groove is provided in the first connecting mechanism 2, and the first connecting mechanism 2 can be supported by the support block 8. The inside of the support block 8 can be normally connected to the water pipe to ensure that it will not be deformed during long-term use. The conical cylinder 9 itself is provided with a metal layer and a rubber layer. The metal layer can support the conical cylinder 9 and will not be damaged when the conical cylinder 9 is subjected to force. The rubber layer is connected to the water pipe, so when the water pipe contacts the conical cylinder 9, the rubber can be compressed at this time, thereby achieving a better sealing effect. In addition, the inside of the conical cylinder 9 is a through hole, so the water in the water pipe will flow into the connecting water pipe 3 through the conical cylinder 9 and flow out from the connecting water pipe 3.

[0030] Reference Figure 1 and Figure 3 The moving mechanism 6 includes a rotating wheel 601, a threaded rod 602 is fixedly connected to the side of the rotating wheel 601, a moving ring 603 is threadedly connected to the side of the threaded rod 602, a limiting rod 604 is movably connected to the edges of the moving ring 603, a sealing ring 605 is fixedly connected to one side of the limiting rod 604, and a support block 8 is fixedly connected to the other side of the limiting rod 604. The inner side of the sealing ring 605 is fixedly connected to the side of the connecting water pipe 3. The moving ring 603 is located at the junction of the first connecting mechanism 2 and the second connecting mechanism 4. The moving ring 603 is a regular octagonal ring. The side of the moving ring 603 is adapted to the inner side of the first connecting mechanism 2. The moving ring 603 has eight edges in total, seven edges are movably connected to the limiting rod 604, and one edge is threadedly connected to the threaded rod 602.

[0031] In the embodiment of the present application, the rotating wheel 601 is located at the junction of the first connecting mechanism 2 and the second connecting mechanism 4. Therefore, when the first connecting mechanism 2 and the second connecting mechanism 4 are respectively connected to the cooling water pipe 1 and the water outlet pipe 5, when the rotating wheel 601 is rotated at this time, it will not be blocked by the cooling water pipe 1 and the water outlet pipe 5, so that the rotation is more convenient. After the rotating wheel 601 rotates, it will drive the threaded rod 602 to rotate. When the threaded rod 602 rotates, it will drive the moving ring 603 to move. Therefore, the moving ring 603 will drive the sealing mechanism 7 inside it to cover the junction between the water pipe and the conical cylinder 9, thereby sealing. Water pipes of different specifications will be at different positions on the side of the conical cylinder 9. It only needs to rotate the rotating wheel 601 to cooperate with water pipes of different specifications. The operation is simpler and faster. The moving ring 603 is a regular octagon, and the position of the moving ring 603 is limited by the limit rod 604, which can maintain the stability of the moving ring 603 during movement.

[0032] Reference Figure 3-Figure 6 The sealing mechanism 7 includes an output gear 701. The eight sides of the movable ring 603 all contain the output gear 701. The inner side of the first connecting mechanism 2 is provided with an avoidance groove. The avoidance groove of the first connecting mechanism 2 is fixedly connected with a rack 10. The output gear 701 and the rack 10 are meshed with each other. The inside of the output gear 701 is fixedly connected with a connecting shaft 702. The side of the connecting shaft 702 is fixedly connected with a first bevel gear 703. The side of the first bevel gear 703 is meshed with a second bevel gear 704. The bottom end of the second bevel gear 704 is fixedly connected with a threaded shaft 705. The side of the threaded shaft 705 is threadedly connected with a threaded cylinder 706. The side of the threaded cylinder 706 away from the threaded shaft 705 is fixedly connected with a sealing block 707. The number of sealing blocks 707 is eight. The eight sealing blocks 707 are distributed on the edge surface on the inner side of the movable ring 603. The sealing blocks 707 are alternately distributed on the side of the conical cylinder 9, and the distances between different sealing blocks 707 and the side of the conical cylinder 9 are the same.

[0033] In the embodiment of the present application, the first connecting mechanism 2 is internally connected with a rack 10 meshing with the output gear 701, so when the moving ring 603 moves, the output gear 701 is driven to move, and when the output gear 701 moves, it rotates at this time, and when the output gear 701 rotates, it drives the first bevel gear 703 to rotate through the connecting shaft 702, and when the first bevel gear 703 rotates, it drives the second bevel gear 704 to rotate, and when the second bevel gear 704 rotates, the threaded cylinder 706 is moved through the threaded shaft 705, and when the threaded cylinder 706 moves, it drives the sealing block 707 to move, so the sealing block 707 automatically moves toward the conical cylinder 9, thereby conical cylinder 9 and the water pipes on the side thereof are sealed. The sealing blocks 707 are eight in number and are assembled in sequence, so that the angles formed by the eight sealing blocks 707 overlap with each other, and no gap will appear to allow water to leave the junction between the water pipe and the conical cylinder 9. The distance between the sealing blocks 707 and the conical cylinder 9 is constant. Therefore, when the sealing blocks 707 are not moved to the junction between the water pipe and the conical cylinder 9, if the sealing blocks 707 are in contact with the water pipe, it will only compress the water pipe, and the water pipe itself may be deformed. When the sealing blocks 707 are located at the junction between the water pipe and the conical cylinder 9, the sealing blocks 707 will squeeze the water pipe against the side of the conical cylinder 9, thereby sealing and fixing it.

[0034] Reference Figure 6 and Figure 7The side of the sealing block 707 close to the movable ring 603 is fixedly connected with a support rod 709, and the side of the support rod 709 away from the sealing block 707 is fixedly connected with a limiting block 710. The side of the limiting block 710 is movably sleeved with a limiting cylinder 708, and the side of the limiting cylinder 708 away from the limiting block 710 is fixedly connected to the inner side of the movable ring 603. The sealing block 707 includes a connecting block 7071 and an arc block 7072. The side of the arc block 7072 away from the connecting block 7071 is adapted to the side of the conical cylinder 9, and the arc angle formed by the arc block 7072 and the central axis of the conical cylinder 9 is sixty degrees.

[0035] In the embodiment of the present application, the limit block 710 will only slide in the limit cylinder 708, so the position of the support rod 709 is locked, and when the threaded shaft 705 rotates, the position of the sealing block 707 is fixed by the limit cylinder 708, so the sealing block 707 will only move with the rotation of the threaded shaft 705, so that it can approach the conical cylinder 9 for fixation, and the sealing block 707 includes a connecting block 7071 and an arc block 7072, and the arc block 7072 contacts the water pipe. There are eight arc blocks 7072, and the angle is sixty degrees. Therefore, when eight arc blocks 7072 fix the water pipe, each position of the water pipe can be fixed, and the sealing effect is better.

[0036] The working principle of the present invention is as follows: the cooling water pipe 1 and the water outlet pipe 5 are inserted into the two ends of the device, the cooling water pipe 1 is located in the first connecting mechanism 2, the water outlet pipe 5 is located in the second connecting mechanism 4, and both are sleeved on the side of the conical cylinder 9. At this time, the rotating wheel 601 is rotated, and the rotating wheel 601 drives the threaded rod 602 to rotate when the rotating wheel 601 rotates. The threaded rod 602 rotates to move the moving ring 603. At this time, the moving ring 603 can cover the connection between the water outlet pipe 5, the second connecting mechanism 4 and the conical cylinder 9;

[0037] When the moving ring 603 moves, it drives the output gear 701 to move. The output gear 701 and the rack 10 are meshed with each other, so the output gear 701 will rotate when it moves. When the output gear 701 rotates, it drives the first bevel gear 703 to rotate through the connecting shaft 702. When the first bevel gear 703 rotates, it drives the threaded shaft 705 to rotate through the second bevel gear 704. When the threaded shaft 705 rotates, the sealing block 707 is limited by the support rod 709 and the limiting cylinder 708, so the threaded cylinder 706 will move. When the threaded cylinder 706 moves It will drive the sealing block 707 to move. When the sealing block 707 moves, it can press the cooling water pipe 1 and the conical cylinder 9 as well as the outlet pipe 5 and the conical cylinder 9. At this time, the cooling water pipe 1 and the conical cylinder 9 as well as the outlet pipe 5 and the conical cylinder 9 are fixed together by the sealing block 707, and there are eight sealing blocks 707 in total, so that the cooling water pipe 1 and the outlet pipe 5 are connected to the conical cylinder 9 at all sides, so there will be no water leakage, thereby realizing the connection between cooling water pipes 1 and the outlet pipe 5 of different sizes, and the installation is fast without the need for multiple thread disassembly.

[0038] Finally: 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 cooling water pipe nozzle for an automobile injection mold, comprising a cooling water pipe (1), characterized in that: The side of the cooling water pipe (1) is movably connected to a conical cylinder (9); the side of the conical cylinder (9) away from the cooling water pipe (1) is fixedly connected to a connecting water pipe (3); the side of the connecting water pipe (3) is fixedly connected to a first connecting mechanism (2); the side of the connecting water pipe (3) away from the first connecting mechanism (2) is fixedly connected to a second connecting mechanism (4); the other side of the second connecting mechanism (4) is movably connected to a water outlet pipe (5); the first connecting mechanism (2) and the second connecting mechanism (4) have the same internal structure; and the first connecting mechanism (2) and the second connecting mechanism (4) are both movably connected to a moving mechanism (6) and a sealing mechanism (7); The moving mechanism (6) comprises a rotating wheel (601), a threaded rod (602) is fixedly connected to the side of the rotating wheel (601), a moving ring (603) is threadedly connected to the side of the threaded rod (602), a limiting rod (604) is movably connected inside the corner of the moving ring (603), a sealing ring (605) is fixedly connected to one side of the limiting rod (604), and a supporting block (8) is fixedly connected to the other side of the limiting rod (604); The sealing mechanism (7) comprises an output gear (701), and the eight side surfaces of the movable ring (603) all contain output gears (701); a avoidance groove is provided on the inner side of the first connecting mechanism (2); a rack (10) is fixedly connected to the avoidance groove of the first connecting mechanism (2); the output gear (701) and the rack (10) are meshed with each other; a connecting shaft (702) is fixedly connected to the inside of the output gear (701); a first bevel gear (703) is fixedly connected to the side surface of the connecting shaft (702); a second bevel gear (704) is meshed with the side surface of the first bevel gear (703); a threaded shaft (705) is fixedly connected to the bottom end of the second bevel gear (704); a threaded barrel (706) is threadedly connected to the side surface of the threaded shaft (705); and a sealing block (707) is fixedly connected to the side surface of the threaded barrel (706) away from the threaded shaft (705).

2. The cooling water pipe nozzle for automobile injection mold according to claim 1, characterized in that: The conical tube (9) itself is conical, and is configured as two layers, wherein the inner layer is a metal layer and the outer layer is a rubber layer. The water pipe is sleeved on the outer layer of the conical tube (9) and is in contact with the rubber layer of the conical tube (9).

3. The cooling water pipe nozzle for automobile injection mold according to claim 2, characterized in that: A regular octagonal through groove is provided inside the first connecting mechanism (2); a support block (8) is fixedly connected to the inner side of the first connecting mechanism (2) away from the second connecting mechanism (4); the side surface of the support block (8) is adapted to the mounting groove inside the first connecting mechanism (2); and a avoidance hole is provided inside the support block (8) for the cooling water pipe (1) to pass through.

4. The cooling water pipe nozzle for automobile injection mold according to claim 1, characterized in that: The inner side of the sealing ring (605) is fixedly connected to the side of the connecting water pipe (3); the movable ring (603) is located at the junction of the first connecting mechanism (2) and the second connecting mechanism (4); the movable ring (603) is a regular octagonal ring; the side of the movable ring (603) is adapted to the inner side of the first connecting mechanism (2); the movable ring (603) has eight edges in total, seven of which are movably connected to limit rods (604); and one of the edges is threadedly connected to a threaded rod (602).

5. The cooling water pipe nozzle for automobile injection mold according to claim 1, characterized in that: The number of the sealing blocks (707) is eight, and the eight sealing blocks (707) are distributed on the edge surface on the inner side of the moving ring (603). The sealing blocks (707) are alternately distributed on the side of the conical cylinder (9), and the distances between different sealing blocks (707) and the side of the conical cylinder (9) are the same.

6. The cooling water pipe nozzle for automobile injection mold according to claim 5, characterized in that: The side of the sealing block (707) close to the movable ring (603) is fixedly connected to a support rod (709), and the side of the support rod (709) away from the sealing block (707) is fixedly connected to a limiting block (710), and the side of the limiting block (710) is movably sleeved with a limiting cylinder (708), and the side of the limiting cylinder (708) away from the limiting block (710) is fixedly connected to the inner side of the movable ring (603).

7. The cooling water pipe nozzle for automobile injection mold according to claim 6, characterized in that: The sealing block (707) comprises a connecting block (7071) and an arc block (7072), the side of the arc block (7072) away from the connecting block (7071) is adapted to the side of the conical tube (9), and the arc angle formed by the arc block (7072) and the central axis of the conical tube (9) is sixty degrees.