Anti-collision-damage structure for hot nozzle of injection mold

Abstract

The utility model discloses a hot nozzle anti-collision structure of an injection mold. The hot nozzle anti-collision structure comprises a hot runner plate, the hot nozzle is mounted at the bottom of the hot runner plate and is used for injecting molten plastic into a cavity of the injection mold; the anti-collision assembly is positioned above the hot nozzle, is mounted at the top of the hot runner plate and is used for reducing the damage of collision to the hot nozzle; one end of the guide cylinder is fixedly connected with the surface of the anti-collision assembly, and the buffer assembly is arranged in the guide cylinder and is in sliding connection with the anti-collision assembly. According to the hot nozzle collision damage prevention structure of the injection mold, through the arrangement of the buffering assembly, when nozzles of the injection mold are in butt joint, the butt joint pipe compresses the reset spring, radial component force generated by collision is buffered, shearing force borne by parts during collision is greatly reduced, breakage of elements is avoided, the service life of the elements is prolonged, and then the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a hot nozzle anti-collision damage structure of an injection mold. Background Art

[0002] According to patent authorization announcement number CN 211165122 U, an anti-collision damage structure of an injection molding machine, an injection molding machine mold and an injection molding machine, including a hot runner plate, a rubber plate and a positioning pipe fitting, the hot runner plate is provided with a screw hole, the positioning pipe fitting is provided with a limit ring, the rubber plate is provided with a limit groove matched with the limit ring, the middle part of the bottom of the screw hole is provided with an embedding groove matched with the rubber plate, the rubber plate is inserted into the embedding groove, the rubber plate is fixed between the positioning pipe fitting and the hot runner plate through the embedding groove and the limit ring, the front of the rubber plate is provided with an arc groove matched with the nozzle of the injection molding machine, the back of the rubber plate is provided with a glue outlet hole, the rubber plate is provided with a connecting hole, the arc groove and the glue outlet hole are both connected with the connecting hole, the hot runner plate is provided with a hot nozzle, and the hot nozzle is connected with the glue outlet hole. The existing anti-collision damage structure of the injection molding machine,

[0003] For example, as shown in the above-mentioned utility model, the existing equipment anti-collision structure usually relies on rubber plates to achieve anti-collision buffering during docking. During docking, the circumferential impact force mainly squeezes the components, while the radial component force causes the colliding parts to be subjected to a large shear force, which often leads to breakage and greatly reduces the service life of the components. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an anti-collision damage structure for the hot nozzle of an injection mold, which solves the problem that the anti-collision damage structure of the existing injection molding machine only relies on rubber plates to achieve anti-collision buffering during docking. During docking, the circumferential impact force mainly squeezes the components, while the radial component force causes the colliding parts to be subjected to a large shear force, which often leads to breakage, greatly reducing the service life of the components.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hot nozzle anti-collision damage structure for an injection mold, comprising: a hot runner plate; a hot nozzle, the hot nozzle is installed at the bottom of the hot runner plate, and is used to inject molten plastic into the cavity of the injection mold; an anti-collision component, the anti-collision component is located above the hot nozzle and installed on the top of the hot runner plate, and is used to reduce the damage to the hot nozzle caused by impact; a guide cylinder, one end of the guide cylinder is fixedly connected to the surface of the anti-collision component; a buffer component, the buffer component is arranged inside the guide cylinder and is slidably connected to the anti-collision component, and is used to reduce the radial impact force during impact.

[0006] Preferably, the anti-collision component includes a bearing ring, which is slidably connected to the hot runner plate, and the bottom of the bearing ring is fixedly connected to a guide tube, which passes through the hot nozzle and is slidably connected to the hot nozzle.

[0007] Preferably, a buffer spring is fixedly connected to the bottom of the carrying ring and located on the outside of the guide tube, and one end of the buffer spring away from the carrying ring is connected to the top of the hot nozzle.

[0008] Preferably, the buffer assembly includes a sealing ring, which is slidably connected to the surface of the bearing ring, the top of the sealing ring is connected to a docking tube, a sealing assembly is arranged between the sealing ring and the guide cylinder, and a return spring is arranged between the docking tube and the guide cylinder.

[0009] Preferably, the sealing assembly comprises a mounting ring, the mounting ring is fixedly connected to the inner wall of the guide cylinder, the bottom end of the mounting ring is fixedly connected to a sealing spring, and the bottom end of the sealing spring is fixedly connected to the top end of the sealing ring.

[0010] Preferably, a mounting hole is formed through the surface of the hot runner plate, the hot nozzle is fixedly connected to the mounting hole, and the carrying ring is slidably connected to the mounting hole.

[0011] Beneficial Effects

[0012] The utility model provides a hot nozzle anti-collision damage structure for an injection mold. Compared with the prior art, it has the following beneficial effects:

[0013] (1) The anti-collision damage structure of the hot nozzle of the injection mold is through the hot runner plate: a hot nozzle, which is installed at the bottom of the hot runner plate and is used to inject the molten plastic into the cavity of the injection mold; an anti-collision component, which is located above the hot nozzle and installed on the top of the hot runner plate, and is used to reduce the damage to the hot nozzle caused by collision; a guide cylinder, one end of which is fixedly connected to the surface of the anti-collision component, and a buffer component, which is arranged inside the guide cylinder and slidably connected to the anti-collision component, and is used to reduce the radial impact force during collision; the anti-collision component includes a bearing ring, which is slidably connected to the hot runner plate, and the bottom of the bearing ring is fixedly connected to a guide tube, which passes through the hot nozzle and is slidably connected to the hot nozzle, and a buffer spring is fixedly connected to the bottom of the bearing ring and located on the outside of the guide tube, and the end of the buffer spring away from the bearing ring is connected to the top of the hot nozzle. Through the setting of the anti-collision component, the buffer spring buffers the axial impact force, which can effectively prevent the hot nozzle on the hot runner plate from being directly hit by the nozzle of the injection molding machine, and can effectively prevent the hot nozzle from being damaged by the injection port of the injection molding machine.

[0014] (2) The anti-collision damage structure of the hot nozzle of the injection mold includes a sealing ring through a buffer component, the sealing ring is slidably connected to the surface of the bearing ring, the top of the sealing ring is connected to a docking tube, a sealing component is arranged between the sealing ring and the guide cylinder, a return spring is arranged between the docking tube and the guide cylinder, the sealing component includes a mounting ring, the mounting ring is fixedly connected to the inner wall of the guide cylinder, the bottom end of the mounting ring is fixedly connected to the sealing spring, and the bottom end of the sealing spring is fixedly connected to the top end of the sealing ring. Through the setting of the buffer component, when the nozzle of the injection molding machine is docked, the docking tube compresses the return spring to buffer the radial component force generated by the collision, thereby greatly reducing the shear force on the parts during the collision, avoiding component breakage, and increasing the service life of the components, thereby reducing the maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 It is a three-dimensional diagram of the structure of the utility model;

[0019] Figure 5 It is a cross-sectional view of the hot runner plate of the utility model.

[0020] In the figure: 1 hot runner plate, 2 hot nozzle, 3 anti-collision assembly, 31 load-bearing ring, 32 guide tube, 33 buffer spring, 4 guide cylinder, 5 buffer assembly, 51 sealing ring, 52 butt tube, 53 sealing assembly, 531 mounting ring, 532 sealing spring, 54 return spring, 6 mounting hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides two technical solutions:

[0023] Figure 1-5The first embodiment is shown: an anti-collision damage structure of a hot nozzle of an injection mold, comprising: a hot runner plate 1; a hot nozzle 2, which is installed at the bottom of the hot runner plate 1 and is used to inject melted plastic into the cavity of the injection mold; an anti-collision component 3, which is located above the hot nozzle 2 and installed on the top of the hot runner plate 1, and is used to reduce the damage to the hot nozzle 2 caused by collision; a guide cylinder 4, one end of which is fixedly connected to the surface of the anti-collision component 3; a buffer component 5, which is arranged inside the guide cylinder 4 and is slidably connected to the anti-collision component 3, and is used to reduce Radial impact force during light collision, the anti-collision component 3 includes a bearing ring 31, the bearing ring 31 is slidably connected to the hot runner plate 1, the bottom of the bearing ring 31 is fixedly connected to a guide tube 32, the guide tube 32 passes through the hot nozzle 2 and is slidably connected to the hot nozzle 2, a buffer spring 33 is fixedly connected to the bottom of the bearing ring 31 and located on the outside of the guide tube 32, the end of the buffer spring 33 away from the bearing ring 31 is connected to the top of the hot nozzle 2, a mounting hole 6 is opened through the surface of the hot runner plate 1, the hot nozzle 2 is fixedly connected to the mounting hole 6, and the bearing ring 31 is slidably connected to the mounting hole 6.

[0024] By setting the anti-collision component 3, the buffer spring 33 buffers the axial impact force, which can effectively prevent the hot nozzle 2 on the hot runner plate from being directly hit by the nozzle of the injection molding machine, and can effectively prevent the hot nozzle from being damaged by the injection port of the injection molding machine.

[0025] Figure 2 and 3 A second embodiment is shown, which mainly differs from the first embodiment in that the buffer assembly 5 includes a sealing ring 51, which is slidingly connected to the surface of the bearing ring 31, and the top of the sealing ring 51 is connected to a docking tube 52, a sealing assembly 53 is arranged between the sealing ring 51 and the guide cylinder 4, and a return spring 54 is arranged between the docking tube 52 and the guide cylinder 4, and the sealing assembly 53 includes a mounting ring 531, which is fixedly connected to the inner wall of the guide cylinder 4, and the bottom end of the mounting ring 531 is fixedly connected to a sealing spring 532, and the bottom end of the sealing spring 532 is fixedly connected to the top of the sealing ring 51.

[0026] By setting the buffer component 5, when the nozzles of the injection molding machine are docked, the docking tube 52 compresses the return spring 54 to buffer the radial force generated by the collision, greatly reducing the shear force on the parts during the collision, avoiding component breakage, increasing the service life of the components, and thus reducing the maintenance cost of the equipment.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot nozzle anti-collision structure for an injection mold, characterized in that: include: Hot runner plate (1); A hot nozzle (2), the hot nozzle (2) being mounted on the bottom of the hot runner plate (1) and being used to inject melted plastic into the cavity of the injection mold; An anti-collision component (3), the anti-collision component (3) being located above the hot nozzle (2) and mounted on the top of the hot runner plate (1) and being used to reduce damage to the hot nozzle (2) caused by collision; A guide cylinder (4), one end of which is fixedly connected to the surface of the anti-collision component (3); The buffer component (5) is arranged inside the guide cylinder (4) and is slidably connected to the anti-collision component (3) to reduce radial impact force during collision.

2. The hot nozzle anti-collision damage structure of an injection mold according to claim 1, characterized in that: The anti-collision component (3) comprises a bearing ring (31), the bearing ring (31) is slidably connected to the hot runner plate (1), the bottom of the bearing ring (31) is fixedly connected to a guide tube (32), and the guide tube (32) passes through the hot nozzle (2) and is slidably connected to the hot nozzle (2).

3. The hot nozzle anti-collision structure of an injection mold according to claim 2, characterized in that: A buffer spring (33) is fixedly connected to the bottom of the bearing ring (31) and located outside the guide tube (32); one end of the buffer spring (33) away from the bearing ring (31) is connected to the top of the hot nozzle (2).

4. The hot nozzle anti-collision structure of an injection mold according to claim 3, characterized in that: The buffer assembly (5) comprises a sealing ring (51), the sealing ring (51) is slidably connected to the surface of the bearing ring (31), the top of the sealing ring (51) is connected to a butt joint (52), a sealing assembly (53) is arranged between the sealing ring (51) and the guide cylinder (4), and a return spring (54) is arranged between the butt joint (52) and the guide cylinder (4).

5. The hot nozzle anti-collision damage structure of an injection mold according to claim 4, characterized in that: The sealing assembly (53) comprises a mounting ring (531), wherein the mounting ring (531) is fixedly connected to the inner wall of the guide cylinder (4), the bottom end of the mounting ring (531) is fixedly connected to a sealing spring (532), and the bottom end of the sealing spring (532) is fixedly connected to the top end of the sealing ring (51).

6. The hot nozzle anti-collision structure of an injection mold according to claim 2, characterized in that: A mounting hole (6) is formed through the surface of the hot runner plate (1), the hot nozzle (2) is fixedly connected to the mounting hole (6), and the carrying ring (31) is slidably connected to the mounting hole (6).

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