Automatic alignment mechanism for nozzle of injection molding machine
By designing a mechanical transmission and stabilizing mechanism, the problem of inaccurate alignment of the nozzle in traditional injection molding machine automatic alignment mechanisms is solved, improving the alignment accuracy and stability between the injection molding machine nozzle and the mold, reducing structural deformation and dust impact, and enhancing the reliability of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANGFANG KANGHENG TECHNOLOGY CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional injection molding machine nozzle auto-alignment mechanisms are difficult to align precisely, leading to minor deformations in the injection molding machine and mold structure, which affects the system's accuracy and stability.
It adopts the principle of mechanical transmission, and drives the compression slider and spring of the positive block through the variable frequency motor. Combined with the sliding of the slide groove, it improves the alignment stability of the nozzle and the mold, and prevents dust from affecting the transmission through the holding mechanism.
It improves the alignment accuracy between the injection molding machine nozzle and the mold, enhances system stability, reduces impact force during injection molding, prevents structural deformation, and strengthens transmission reliability.
Smart Images

Figure CN224145214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical engineering technology, specifically to an automatic nozzle alignment mechanism for injection molding machines. Background Technology
[0002] An injection molding machine, also known as an injection molding machine or simply an injection molding machine, is a type of mechanical equipment used to manufacture plastic products.
[0003] The automatic nozzle alignment mechanism of an injection molding machine is a system specifically designed to ensure that the nozzle of the injection molding machine is precisely aligned with the mold gate. The main purpose of this mechanism is to ensure that the molten plastic can be injected into the mold cavity efficiently and accurately, thereby producing high-quality plastic products.
[0004] However, the existing automatic nozzle alignment mechanism for injection molding machines has the following shortcomings:
[0005] Traditional automatic nozzle alignment mechanisms for injection molding machines often fail to achieve precise alignment between the injection nozzle and the injection mold during injection molding. This can lead to strong collisions during alignment, and the continuous impact can cause minor deformations in the injection molding machine and mold structure, thereby affecting the accuracy and stability of the entire system. Utility Model Content
[0006] The purpose of this invention is to solve the problems mentioned in the background art when existing equipment is in use. By setting an alignment mechanism, when the frequency converter motor starts, the alignment block presses the first slider, the second slider slides inside the first slide groove, the first slider presses the spring, and the through column slides inside the second slide groove.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: an automatic nozzle alignment mechanism for an injection molding machine, comprising a base, an injection body disposed on the top of the base, a mold disposed on the top of the base, an alignment mechanism assembled on the side of the injection body, and a holding mechanism assembled inside the base.
[0008] The alignment mechanism includes multiple alignment blocks and multiple first sliders. Each alignment block has a first threaded rod on both sides. Each first slider has a second slider fixedly connected to both sides. The side of the injection molding body has multiple first grooves. Each first slider has a through post fixedly connected to its side. The side of the injection molding body has multiple second grooves. The side of the injection molding body has multiple springs.
[0009] Preferably, one end of each spring is fixedly connected to the side end of the first slider, and the other end of each spring is fixedly connected to the inside of the side end of the injection molding body.
[0010] Preferably, a bracket is fixedly connected to the side of the base, a variable frequency motor is provided at the side of the bracket, a second threaded rod is fixedly connected to the output shaft of the variable frequency motor, a fifth slider is provided on the outside of the second threaded rod, a sixth slider is fixedly connected to both sides of the fifth slider, and two fifth sliding grooves are opened inside the base.
[0011] Preferably, the side end of the injection body is provided with an inlet, and the injection body is aligned with the injection inlet of the mold during injection.
[0012] Preferably, the stabilizing mechanism includes a first sliding plate, with third sliders fixedly connected to both ends of the first sliding plate, and two third sliding grooves opened inside the base.
[0013] Preferably, the first slide plate has two symmetrical fourth slide grooves inside, the base has a second slide plate inside, and the two sides of the second slide plate are respectively fixedly connected to fourth sliders, and the side of each fourth slider is slidably connected to the inside of the fourth slide groove.
[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0015] 1. In this utility model, by setting an alignment mechanism, when the variable frequency motor starts, the alignment block presses the first slider, the second slider slides inside the first slide groove, the first slider presses the spring, and the through column slides inside the second slide groove. The mechanism adopts the mechanical transmission principle, which improves the traditional automatic nozzle alignment mechanism of the injection molding machine. The additional structure improves the alignment stability of the traditional automatic nozzle alignment mechanism of the injection molding machine. When aligning the injection body with the injection inlet of the mold, the alignment block indirectly presses the spring, which reduces the force of the first slider on the mold, thereby improving the accuracy and stability of the entire system when aligning the injection body with the injection inlet of the mold.
[0016] 2. In this utility model, by setting a stabilizing mechanism, the fifth slider drives the first slide plate to slide inside the base, the third slider slides inside the third slide groove, the fourth slider slides inside the fourth slide groove, and the second slide plate slides inside the first slide plate, preventing dust inside the workshop from acting on the outside of the second threaded rod and improving the transmission performance of the fifth slider outside the second threaded rod. Attached Figure Description
[0017] Figure 1 This utility model provides a perspective view of the main structure of an automatic nozzle alignment mechanism for injection molding machines;
[0018] Figure 2 This utility model provides a three-dimensional cross-sectional view of the base of an automatic nozzle alignment mechanism for an injection molding machine.
[0019] Figure 3This utility model provides a three-dimensional structural view of the alignment mechanism portion of an automatic nozzle alignment mechanism for injection molding machines;
[0020] Figure 4 This utility model provides a three-dimensional cross-sectional view of the injection molding body of an automatic nozzle alignment mechanism for an injection molding machine.
[0021] Figure 5 This utility model provides a three-dimensional cross-sectional view of the base and the first sliding plate of an automatic nozzle alignment mechanism for an injection molding machine.
[0022] In the diagram: 1. Base; 2. Bracket; 3. Variable frequency motor; 4. Alignment mechanism; 41. Alignment block; 42. First threaded rod; 43. First slider; 44. Second slider; 45. First slide groove; 46. Through column; 47. Second slide groove; 48. Spring; 5. Holding mechanism; 51. First sliding plate; 52. Third slider; 53. Third slide groove; 54. Second sliding plate; 55. Fourth slider; 56. Fourth slide groove; 6. Injection body; 7. Inlet; 8. Fifth slider; 9. Sixth slider; 10. Fifth slide groove; 11. Second threaded rod; 12. Mold. Detailed Implementation
[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:
[0024] like Figures 1-5 As shown, this utility model provides an automatic nozzle alignment mechanism for an injection molding machine, including a base 1, an injection molding body 6 on the top of the base 1, a mold 12 on the top of the base 1, an alignment mechanism 4 mounted on the side of the injection molding body 6, and a holding mechanism 5 mounted inside the base 1. The alignment mechanism 4 includes multiple alignment blocks 41 and multiple first sliders 43. Each alignment block 41 has a first threaded rod 42 on both sides. Each first slider 43 has a second slider 44 fixedly connected to both sides. The side of the injection molding body 6 has multiple first grooves 45, and the side of each first slider 43 has a through post 46 fixedly connected to the through post 46. The side of the injection molding body 6 has multiple first grooves 45. The injection body 6 has two grooves 47. Multiple springs 48 are provided on the side end of the injection body 6. One end of each spring 48 is fixedly connected to the side end of the first slider 43, and the other end of each spring 48 is fixedly connected to the inside of the side end of the injection body 6. A bracket 2 is fixedly connected to the side end of the base 1. A variable frequency motor 3 is provided on the side end of the bracket 2. A second threaded rod 11 is fixedly connected to the output shaft of the variable frequency motor 3. A fifth slider 8 is provided on the outside of the second threaded rod 11. A sixth slider 9 is fixedly connected to both sides of the fifth slider 8. Two fifth grooves 10 are opened inside the base 1. An inlet 7 is provided on the side end of the injection body 6. The injection body 6 is aligned with the injection inlet of the mold 12 during injection.
[0025] The overall effect of Embodiment 1 is as follows: the relevant components can improve the alignment stability of the automatic nozzle alignment mechanism of the traditional injection molding machine through mechanical transmission. The alignment block 41, which is located near the injection body 6, serves to achieve alignment while promoting the insertion of the injection head of the injection body 6 into the injection inlet of the mold 12. When the injection head is not aligned with the injection inlet of the mold, the first slider 43 is squeezed to reduce the impact force of the first slider 43 when it is misaligned with the injection inlet. In this mechanical transmission method, when the injection body 6 is aligned with the injection inlet of the mold 12, the alignment block 41 indirectly squeezes the spring 48, which reduces the force of the first slider 43 on the mold 12, thereby improving the accuracy and stability of the entire system when the injection body 6 is aligned with the injection inlet of the mold 12.
[0026] Example 2, as Figures 1-5 As shown, the holding mechanism 5 includes a first slide plate 51, with third sliders 52 fixedly connected to both ends of the first slide plate 51, two third slide grooves 53 opened inside the base 1, two fourth slide grooves 56 symmetrically opened inside the first slide plate 51, a second slide plate 54 arranged inside the base 1, with fourth sliders 55 fixedly connected to both ends of the second slide plate 54, and the side end of each fourth slider 55 slidably connected inside the fourth slide groove 56.
[0027] The effect achieved by the entire embodiment 2 is as follows: by setting the holding mechanism 5, the fifth slider 8 drives the first slide plate 51 to slide inside the base 1, the third slider 52 to slide inside the third slide groove 53, the fourth slider 55 to slide inside the fourth slide groove 56, and the second slide plate 54 to slide inside the first slide plate 51, preventing dust inside the workshop from acting on the outside of the second threaded rod 11 and improving the transmission performance of the fifth slider 8 outside the second threaded rod 11.
[0028] The working principle of the entire equipment is as follows: Installation and inspection phase: Before starting the test, ensure that all parts of the structure are in a stable state to prevent any part of the structure from malfunctioning after the work is completed.
[0029] During the alignment stage of the injection head of the injection body and the injection inlet of the mold: the operator starts the variable frequency motor 3, and the output shaft of the variable frequency motor 3 drives the second threaded rod 11 to rotate. The injection body 6 moves on the side close to the mold 12. At this time, as the injection body 6 moves, the alignment block 41 indirectly squeezes the first slider 43. At this time, the first slider 43 drives the second slider 44 to slide inside the first slide groove 45. The first slider 43 drives the through column 46 to slide inside the second slide groove 47. While sliding, the first slider 43 squeezes the spring 48, at which time the spring 48 deforms.
[0030] Dust prevention stage: When the operator starts the variable frequency motor 3, the output shaft of the variable frequency motor 3 drives the second threaded rod 11 to rotate. At the same time, the rotation of the second threaded rod 11 drives the fifth slider 8 to move towards the mold 12 inside the base 1. At this time, the fifth slider 8 drives the first slide plate 51 to slide inside the base 1. The first slide plate 51 drives the third slider 52 to slide inside the third slide groove 53. While the first slide plate 51 is sliding, the fourth slider 55 slides indirectly inside the fourth slide groove 56. The side end of the second slide plate 54 slides indirectly inside the first slide plate 51.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An automatic nozzle alignment mechanism for an injection molding machine characterized by: Includes a base (1), an injection body (6) is provided on the top of the base (1), a mold (12) is provided on the top of the base (1), an alignment mechanism (4) is assembled on the side of the injection body (6), and a stabilizing mechanism (5) is assembled inside the base (1). The alignment mechanism (4) includes multiple alignment blocks (41) and multiple first sliders (43). Each alignment block (41) has a first threaded rod (42) on both sides. Each first slider (43) has a second slider (44) fixedly connected to both sides. The side of the injection body (6) has multiple first grooves (45). Each first slider (43) has a through post (46) fixedly connected to its side. The side of the injection body (6) has multiple second grooves (47). The side of the injection body (6) has multiple springs (48).
2. The automatic injection molding machine nozzle registration mechanism of claim 1 wherein: One end of each spring (48) is fixedly connected to the side end of the first slider (43), and the other end of each spring (48) is fixedly connected to the inside of the side end of the injection body (6).
3. The automatic injection molding machine nozzle registration mechanism of claim 1 wherein: A bracket (2) is fixedly connected to the side end of the base (1). A variable frequency motor (3) is provided on the side end of the bracket (2). A second threaded rod (11) is fixedly connected to the output shaft of the variable frequency motor (3). A fifth slider (8) is provided on the outside of the second threaded rod (11). A sixth slider (9) is fixedly connected to both sides of the fifth slider (8). Two fifth sliding grooves (10) are opened inside the base (1).
4. The automatic injection molding machine nozzle registration mechanism of claim 1 wherein: The injection body (6) is provided with an inlet (7) on its side end, and the injection body (6) is aligned with the injection inlet of the mold (12) during injection.
5. The injection molding machine nozzle automatic alignment mechanism of claim 1 wherein: The holding mechanism (5) includes a first sliding plate (51), and third sliders (52) are fixedly connected to both ends of the first sliding plate (51). Two third sliding grooves (53) are opened inside the base (1).
6. The injection molding machine nozzle automatic alignment mechanism of claim 5, wherein: The first slide plate (51) has two symmetrical fourth slide grooves (56) inside. The base (1) has a second slide plate (54) inside. The two sides of the second slide plate (54) are respectively fixedly connected to fourth sliders (55). The side of each fourth slider (55) is slidably connected to the inside of the fourth slide groove (56).