Injection molding machine nozzle alignment mechanism

By designing a nozzle alignment mechanism driven by a support base and a threaded rod, the problem of alignment compatibility between nozzles of different sizes and mold gates was solved, enabling fast and stable nozzle installation and improving production efficiency.

CN224296403UActive Publication Date: 2026-05-29SUZHOU JINRONG PRECISION MOLDING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU JINRONG PRECISION MOLDING TECH CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing alignment mechanism between the injection molding machine nozzle and the mold gate is difficult to ensure accurate alignment when changing nozzles or molds of different sizes, resulting in compatibility issues.

Method used

A nozzle alignment mechanism was designed, comprising a support base, a support half-ring, an internal threaded ring, a threaded rod, and a handle. By rotating the handle, the threaded rod is driven to tightly clamp the nozzle base. Combined with the annular sliding of the groove and the slider, a stable clamping and fixing of nozzles of different sizes is achieved.

Benefits of technology

It enables rapid and stable installation of nozzles of different sizes, saving installation time, improving production efficiency, and avoiding complicated tools and cumbersome steps.

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Abstract

The utility model discloses a kind of injection molding machine nozzle alignment mechanism, comprising: alignment component, the alignment component includes mechanism frame;Fixed component, the fixed component includes nozzle seat, support seat, support half ring, bottom ring, internal thread ring, threaded rod and handle, the support seat is located in the upper surface of mechanism frame, bottom ring is fixed in the top of support seat, nozzle seat is placed in the top of bottom ring, support half ring is located in the outer surface of bottom ring, internal thread ring is arranged in the outer surface of support half ring, threaded rod is screw-connected in the middle of internal thread ring. The above-mentioned device of the utility model when actually using, nozzle and connecting block are usually welded connection mode between them, which determines that it can only adapt to specific size nozzle, in actual production, the diversification demand of injection molding product causes the nozzle specification used to exist greater difference, once different size nozzle or mold gate is replaced, alignment mechanism is difficult to guarantee the accurate alignment of both, compatibility problem appears.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to an injection molding machine nozzle alignment mechanism. Background Technology

[0002] In the modern injection molding production field, the precise alignment between the injection molding machine nozzle and the mold gate is of paramount importance. During the injection molding process, the molten plastic needs to be injected into the mold cavity at high speed through the injection molding machine nozzle, and the starting point of this process is the alignment of the nozzle and the mold gate.

[0003] A search revealed CN222346150U, a nozzle alignment mechanism for an injection molding machine, comprising a base, a mold fixedly connected to the upper surface of the base, an alignment groove on the right side wall of the mold, a movable plate slidably connected to the upper surface of the base, an alignment outer cylinder fixedly connected to the upper surface of the movable plate, an alignment block matching the alignment groove fixedly connected to the left end of the alignment outer cylinder, and a through hole through the left side wall of the alignment block; an injection molding machine body slidably connected inside the alignment outer cylinder, an injection nozzle mounted on the left end of the injection molding machine body, and the other end of the injection nozzle extending into the through hole. This invention can quickly align the injection nozzle with the injection mold and provides buffer space for the movement of the injection nozzle, preventing the injection nozzle from colliding and being damaged.

[0004] In actual use, the nozzle and the connecting block of the above-mentioned device are usually connected by welding. This means that it can only be adapted to nozzles of a specific size. In actual production, the diverse needs of injection molded products lead to a large difference in the specifications of the nozzles used. Once a nozzle or mold gate of a different size is changed, the alignment mechanism will find it difficult to ensure accurate alignment of the two, resulting in compatibility problems. Utility Model Content

[0005] The purpose of this utility model is to provide a nozzle alignment mechanism for injection molding machines to solve the problems mentioned in the background section. To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a nozzle alignment mechanism for an injection molding machine, comprising:

[0007] Alignment component, the alignment component includes a mechanism frame;

[0008] The fixing component includes a nozzle seat, a support seat, a support half ring, a bottom ring, an internal threaded ring, a threaded rod, and a handle. The support seat is located on the upper surface of the mechanism frame, the bottom ring is fixed to the top of the support seat, the nozzle seat is placed on the top of the bottom ring, the support half ring is located on the outer surface of the bottom ring, the internal threaded ring is set on the outer surface of the support half ring, the threaded rod is threaded to the middle of the internal threaded ring, and the handle is rotatably connected to the outer end of the threaded rod.

[0009] Furthermore, the supporting semi-ring is arc-shaped and surrounds the outer surface of the nozzle seat.

[0010] Furthermore, it also includes a positioning component, which includes a sliding groove, a moving groove, and a slider. The slider is formed inside the bottom ring, the moving groove is formed at both ends of the outer surface of the bottom ring, the slider is movably connected inside the moving groove and the sliding groove, and the other side is fixed to the outside of the supporting half ring.

[0011] Furthermore, a snap-fit ​​block is fixed to one end of the outer surface of the slider, and the snap-fit ​​block is clamped to one end of the moving groove.

[0012] Furthermore, a second snap-fit ​​block is fixed to the other end of the outer surface of the slider, and the second snap-fit ​​block is clamped to the other end of the moving groove.

[0013] Furthermore, the alignment component also includes an inner groove, a lead screw, a nut, and a support base. The inner groove is formed on the top of the mechanism frame, the lead screw is rotatably connected inside the inner groove, the nut is set on the outer surface of the lead screw, the support base is fixed on the top of the nut, and the support base is welded to the bottom of the mechanism frame.

[0014] Furthermore, it also includes a support component, which includes a side plate, a guide rod, a crossbar, and a guide ring. The side plate is fixed to the top of the frame, the guide rod is fixed between the two side plates, the crossbar is fixed to both ends of the support base, and the guide ring is disposed at the outer end of the crossbar and is movably connected to the outer surface of the guide rod.

[0015] Furthermore, a spring is wound around the outer surface of the guide rod, and the spring is attached to both sides of the guide ring.

[0016] This utility model has the following beneficial effects:

[0017] This invention features a support base, a support half-ring, a bottom ring, an internal threaded ring, and a threaded rod at the top of the mechanism frame. When installing and aligning nozzle seats of different sizes, the nozzle seat can be placed stably on top of the bottom ring. By relying on the annular sliding of the slider within the sliding groove and the moving groove, the support half-ring can be moved to the appropriate upper position. The operator only needs to turn the handle to drive the threaded rod to rotate. As the threaded rod rotates, it gradually clamps tightly onto the outer surface of the nozzle seat, achieving a stable clamping and fixing of the nozzle seat. This eliminates the need for complex tools or cumbersome steps, greatly saving installation time and improving production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the support frame after disassembly of the present invention;

[0021] Figure 3 This is a schematic diagram of the bottom ring of this utility model;

[0022] Figure 4 This is a schematic diagram of the supporting semi-ring of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 100. Mechanism frame; 101. Inner groove; 102. Lead screw; 103. Nut; 104. Support base frame;

[0025] 200. Nozzle seat; 201. Support seat; 202. Support half ring; 203. Bottom ring; 204. Internal threaded ring; 205. Threaded rod; 206. Handle;

[0026] 300. Slide groove; 301. Moving groove; 302. Slider; 303. Snap-fit ​​block one; 304. Snap-fit ​​block two;

[0027] 400. Side plate; 401. Guide rod; 402. Spring; 403. Crossbar; 404. Guide ring. Detailed Implementation

[0028] 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.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Please see Figure 1-4 As shown, this utility model is a nozzle alignment mechanism for an injection molding machine, comprising:

[0031] Alignment component, the alignment component includes a frame 100;

[0032] The fixing component includes a nozzle seat 200, a support seat 201, a support half ring 202, a bottom ring 203, an internal threaded ring 204, a threaded rod 205, and a handle 206. The support seat 201 is located on the upper surface of the mechanism frame 100, the bottom ring 203 is fixed to the top of the support seat 201, the nozzle seat 200 is placed on the top of the bottom ring 203, the support half ring 202 is located on the outer surface of the bottom ring 203, the internal threaded ring 204 is disposed on the outer surface of the support half ring 202, the threaded rod 205 is threadedly connected to the middle part of the internal threaded ring 204, and the handle 206 is rotatably connected to the outer end of the threaded rod 205.

[0033] When it is necessary to install and align nozzle seats 200 of different sizes, the nozzle seat 200 can be placed stably on the top of the bottom ring 203. The operator only needs to turn the handle 206 to drive the threaded rod 205 to rotate. As the threaded rod 205 rotates, it gradually clamps tightly on the outer surface of the nozzle seat 200, thus achieving a stable clamping and fixing of the nozzle seat 200.

[0034] The supporting semi-ring 202 is arc-shaped and surrounds the outer surface of the nozzle seat 200.

[0035] It also includes a positioning component, which includes a sliding groove 300, a moving groove 301 and a slider 302. The slider 302 is opened inside the bottom ring 203, the moving groove 301 is opened at both ends of the outer surface of the bottom ring 203, the slider 302 is movably connected to the inside of the moving groove 301 and the sliding groove 300, and the other side is fixed to the outside of the supporting half ring 202.

[0036] The supporting half-ring 202 can be moved by the slider 302 moving inside the slide groove 300 and the moving groove 301.

[0037] A snap-fit ​​block 303 is fixed to one end of the outer surface of the slider 302, and the snap-fit ​​block 303 is clamped to one end of the moving groove 301.

[0038] A second snap-fit ​​block 304 is fixed to the other end of the outer surface of the slider 302, and the second snap-fit ​​block 304 is clamped to the other end of the moving groove 301;

[0039] The position of the support half-ring 202 after sliding is reinforced by clamping and fixing with snap-fit ​​block 1 303 and snap-fit ​​block 2 304.

[0040] The supporting components also include an inner groove 101, a lead screw 102, a nut 103, and a support base 104. The inner groove 101 is formed on the top of the mechanism frame 100, the lead screw 102 is rotatably connected to the inside of the inner groove 101, the nut 103 is set on the outer surface of the lead screw 102, the support seat 201 is fixed on the top of the nut 103, and the support base 104 is welded to the bottom of the mechanism frame 100.

[0041] The motor runs, driving the turntable and lead screw 102 to rotate. The nut 103 moves in position through the rotation of the lead screw 102, aligning the nozzle seat 200.

[0042] Working principle: The operator can stably place the nozzle seat 200 to be installed on top of the bottom ring 203. The bottom ring 203 serves as the foundation of the entire support structure, providing a stable platform for the nozzle seat 200. At this time, the slider 302 precisely matches the sliding groove 300 and the moving groove 301. Due to the special design of the sliding groove 300 and the moving groove 301, the slider 302 can slide smoothly in a ring. With the help of this ring sliding, the support half ring 202 can move flexibly along the predetermined track until it reaches the optimal upper position that fits the current nozzle seat 200. After the support half ring 202 is in place, the operator only needs to manually turn the handle 206. The handle 206 is connected to the threaded rod 205 through a reasonable transmission structure. When the handle 206 is turned, it will directly drive the threaded rod 205 to rotate synchronously. As the threaded rod 205 rotates, it gradually comes into contact with the outer surface of the nozzle seat 200 and continuously applies pressure during the continuous rotation. This pressure allows the threaded rod 205 to fit tightly against the outer surface of the nozzle seat 200. As the fit increases, it eventually achieves a holistic and stable clamping and fixing of the nozzle seat 200. This eliminates the need for complex tools or cumbersome steps, greatly saving installation time and improving production efficiency.

[0043] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:

[0044] The support component includes a side plate 400, a guide rod 401, a crossbar 403, and a guide ring 404. The side plate 400 is fixed to the top of the frame 100, the guide rod 401 is fixed between the two side plates 400, the crossbar 403 is fixed to both ends of the support base 201, and the guide ring 404 is disposed at the outer end of the crossbar 403 and is movably connected to the outer surface of the guide rod 401.

[0045] The guide ring 404 is installed on the outer end of the nut 103. During the movement of the nut 103, the guide ring 404 will slide synchronously on the outside of the guide rod 401. The guide rod 401 provides precise guidance for the movement of the guide ring 404, ensuring that the nut 103 strictly follows the predetermined trajectory during the movement, avoiding deviation or shaking, thereby significantly improving the stability and accuracy of the movement of the nut 103.

[0046] A spring 402 is wound around the outer surface of the guide rod 401, and the spring 402 is attached to both sides of the guide ring 404;

[0047] When the nut 103 moves the bottom ring 203, the spring 402 can provide strong support for the bottom ring 203. At the beginning of the movement of the nut 103, the spring 402 will adaptively adjust its elastic deformation according to the moving speed and direction of the bottom ring 203, thereby buffering the impact force on the bottom ring 203.

[0048] Working principle: First, the guide ring 404 is installed on the outer end of the nut 103. During the movement of the nut 103, the guide ring 404 slides synchronously on the outside of the guide rod 401. The guide rod 401 provides precise guidance for the movement of the guide ring 404, ensuring that the nut 103 strictly follows the predetermined trajectory during the movement, avoiding deviation or shaking. A spring 402 is wound around the outside of the guide rod 401. When the nut 103 drives the bottom ring 203 to move, the spring 402 can provide strong support for the bottom ring 203. At the beginning stage of the movement of the nut 103, the spring 402 will adaptively adjust its elastic deformation according to the moving speed and direction of the bottom ring 203, thereby buffering the impact force on the bottom ring 203 and reducing the vibration caused by sudden start or stop. During the movement, the spring 402 always maintains a certain preload, continuously providing stable support for the bottom ring 203, effectively preventing the bottom ring 203 from tilting or shaking due to gravity or external force.

[0049] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A nozzle alignment mechanism for an injection molding machine, characterized in that, include: The alignment component includes a frame (100). The fixing component includes a nozzle seat (200), a support seat (201), a support half ring (202), a bottom ring (203), an internal threaded ring (204), a threaded rod (205), and a handle (206). The support seat (201) is located on the upper surface of the frame (100), the bottom ring (203) is fixed on the top of the support seat (201), the nozzle seat (200) is placed on the top of the bottom ring (203), the support half ring (202) is located on the outer surface of the bottom ring (203), the internal threaded ring (204) is set on the outer surface of the support half ring (202), the threaded rod (205) is threadedly connected to the middle of the internal threaded ring (204), and the handle (206) is rotatably connected to the outer end of the threaded rod (205).

2. The injection molding machine nozzle alignment mechanism according to claim 1, characterized in that: The supporting semi-ring (202) is arc-shaped and surrounds the outer surface of the nozzle seat (200).

3. The nozzle alignment mechanism for an injection molding machine according to claim 1, characterized in that: It also includes a positioning component, which includes a slide groove (300), a moving groove (301) and a slider (302). The slider (302) is opened inside the bottom ring (203), the moving groove (301) is opened at both ends of the outer surface of the bottom ring (203), the slider (302) is movably connected inside the moving groove (301) and the slide groove (300), and the other side is fixed to the outside of the supporting half ring (202).

4. The nozzle alignment mechanism for an injection molding machine according to claim 3, characterized in that: One end of the outer surface of the slider (302) is fixed with a snap-fit ​​block (303), which is clamped to one end of the moving groove (301).

5. The nozzle alignment mechanism for an injection molding machine according to claim 4, characterized in that: The other end of the outer surface of the slider (302) is fixed with a second snap-fit ​​block (304), which is clamped to the other end of the moving groove (301).

6. The nozzle alignment mechanism for an injection molding machine according to claim 1, characterized in that: The alignment component also includes an inner groove (101), a lead screw (102), a nut (103), and a support base (104). The inner groove (101) is located on the top of the mechanism frame (100). The lead screw (102) is rotatably connected inside the inner groove (101). The nut (103) is located on the outer surface of the lead screw (102). The support base (201) is fixed on the top of the nut (103). The support base (104) is welded to the bottom of the mechanism frame (100).

7. The nozzle alignment mechanism for an injection molding machine according to claim 1, characterized in that: It also includes a support component, which includes a side plate (400), a guide rod (401), a crossbar (403) and a guide ring (404). The side plate (400) is fixed to the top of the frame (100), the guide rod (401) is fixed between the two side plates (400), the crossbar (403) is fixed at both ends of the support base (201), and the guide ring (404) is disposed at the outer end of the crossbar (403) and is movably connected to the outer surface of the guide rod (401).

8. The injection molding machine nozzle alignment mechanism according to claim 7, characterized in that: The outer surface of the guide rod (401) is wrapped with a spring (402), and the spring (402) is attached to both sides of the guide ring (404).