Vertical ejection mechanism of injection molding machine
The modularly designed vertical injection mechanism solves the applicability problem of dual-injection molding machines on different types of injection molding machines, and enables flexible adjustment of the injection unit position to meet the assembly requirements of various injection molding machine models.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN FUQIANGXIN PLASTIC MASCH MFG CO LTD
- Filing Date
- 2025-03-12
- Publication Date
- 2026-04-28
AI Technical Summary
Existing twin-shot injection molding machines are not suitable for different types of injection molding machines, especially when production requires vertical injection to form a three-color mold, they cannot meet processing requirements, and the vertical injection structure cannot be adjusted in lateral position.
Design a vertical injection mechanism for an injection molding machine. The mechanism adopts a modular design, including a detachable base, a slide that can move left and right, and an injection unit that can move up and down. Combined with a guiding mechanism and a driving mechanism, it realizes an adjustable design for the position of the injection end in all directions.
This allows the vertical injection mechanism to be adapted to different types of injection molding machines, meet the assembly requirements of various injection molding machine models, and enable flexible position adjustment of the injection unit.
Smart Images

Figure CN224170314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machines, and in particular to a vertical injection mechanism for an injection molding machine. Background Technology
[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are often called "pig injection machines" in many factories, and injection-molded products are called "pig injection parts." They are the main molding equipment used to create various shapes of plastic products from thermoplastic or thermosetting materials using plastic molds. Injection molding machines can be classified into vertical, horizontal, and vertical-horizontal combined types according to the arrangement of the injection unit and mold clamping unit.
[0003] Two-shot injection molding, as a unique injection molding method, can produce special-purpose products requiring different colors or material combinations, meeting specific needs and creating a wider variety of appearances, making molded products no longer limited to a single look. However, with the continuous development of science and technology and the increasing improvement of people's living standards, some injection molded products can no longer meet the requirements of users. Currently, two-shot injection molding machines are equipped with two horizontally extended injection stations with a fixed spacing. This type of injection molding machine can only be used for two-color mold production. When production requires the addition of vertical injection to form a three-color mold, the two-shot injection molding machine cannot meet the injection processing requirements. A vertical injection structure needs to be added to the mold to achieve this. However, this vertical injection structure needs to be designed into the overall machine design. Due to the structural differences between different types of injection molding machines, this vertical injection structure is not suitable for different types of injection molding machines. Furthermore, this vertical injection structure usually only has vertical lifting capabilities, meaning it cannot be adjusted laterally.
[0004] Therefore, a new technology needs to be developed to solve the above problems. Utility Model Content
[0005] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a vertical injection mechanism for an injection molding machine. This mechanism achieves a modular design, making it suitable for different types of injection molding machines. It also features an adjustable design for the injection end position of the injection unit in all directions to adapt to the assembly requirements of different injection molding machine models.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A vertical injection mechanism for an injection molding machine includes a base detachably mounted on the mold of the injection molding machine, a slide mounted on the base that can move left and right, and an injection unit mounted on the slide that can move up and down. The base is provided with a plurality of connection holes for threaded connection with the mold of the injection molding machine, and the injection end of the injection unit passes through the slide and is vertically downward.
[0008] A guide mechanism is provided between the base and the slide. A first drive mechanism is provided on one side of the base. The drive end of the first drive mechanism is connected to the slide and drives the slide to move left and right. A guide post is installed on the upper end of the slide. A movable seat that can move up and down is installed on the guide post. A second drive mechanism is installed on the movable seat. The drive end of the second drive mechanism is connected to the movable seat and drives the movable seat to move up and down. The upper end of the injection unit is connected to the movable seat. The lower end of the injection unit passes through the slide and extends out of the lower end of the slide. The injection end of the injection unit is formed at the lower end of the injection unit.
[0009] As a preferred embodiment, the guiding mechanism includes a slider and a slide rail that are mutually slidably adapted to each other.
[0010] As a preferred embodiment, the driving end of the first driving mechanism is connected to a linkage rod, and one end of the linkage rod is connected to one side of the slide block through a linkage block.
[0011] As a preferred embodiment, a support plate is installed on the upper end of the slide, and there are two guide posts, which are respectively located at two opposite corners of the support plate. The two opposite sides of the movable seat are respectively connected to the two guide posts, and the lower end of the injection unit passes through the support plate and the slide in sequence.
[0012] As a preferred embodiment, there are two second drive mechanisms, which are respectively located at two other opposite corners of the support plate. The drive ends of both second drive mechanisms are connected to lead screws, and the lower ends of the lead screws are connected to the rotating shaft on the support plate via couplings. The lead screws are connected to the movable seat via lead screw nuts.
[0013] As a preferred embodiment, the first driving mechanism is a hydraulic cylinder.
[0014] As a preferred embodiment, the second drive mechanism is a motor.
[0015] As a preferred embodiment, the injection unit includes a material tube, a nozzle connected to the lower end of the material tube, a screw inserted into the material tube, and a drive motor mounted on the movable seat for driving the screw. The upper end of the material tube is connected to the movable seat, the lower end of the material tube passes through the slide and extends out of the lower end of the slide, and the injection end of the injection unit is formed at the lower end of the nozzle.
[0016] As a preferred embodiment, the feed tube has a feeding chamber, and a feeding tube connected to the feed tube communicates with the feeding chamber.
[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly consists of a base that can be detachably installed on the mold of the injection molding machine, a slide that can be moved left and right on the base, and an injection unit that can be moved up and down on the slide. The base is provided with several connection holes for threaded connection with the mold of the injection molding machine. In this way, it can realize the modular design of the vertical injection mechanism, so that the vertical injection mechanism can be applied to different types of injection molding machines. It also realizes the adjustable design of the injection end position of the injection unit to adapt to the assembly requirements of different injection molding machine models.
[0018] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;
[0020] Figure 2 This is a three-dimensional structural diagram of another embodiment of the present utility model;
[0021] Figure 3 This is another perspective view of an embodiment of the present utility model;
[0022] Figure 4 This is a cross-sectional schematic diagram of an embodiment of the present utility model.
[0023] Explanation of reference numerals in the attached diagram:
[0024] 10. Base; 11. Connecting hole
[0025] 20. Slide block; 30. Injection unit
[0026] 31. Material pipe 311. Feeding chamber
[0027] 32. Nozzle 33. Screw
[0028] 34. Drive motor 35. Feeding pipe
[0029] 40. First drive mechanism; 50. Guide column
[0030] 60. Movable seat; 70. Second drive mechanism
[0031] 80, linkage rod; 90, linkage block
[0032] 101. Support plate; 102. Lead screw
[0033] 103. Coupling; 104. Rotating shaft. Detailed Implementation
[0034] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", and "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0035] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of the vertical injection mechanism of the injection molding machine provided in an embodiment of the present invention.
[0036] The vertical injection mechanism of this injection molding machine includes a base 10 detachably mounted on the mold of the injection molding machine, a slide 20 movably mounted on the base 10, and an injection unit 30 movably mounted on the slide 20. The base 10 is provided with a plurality of connection holes 11 for threaded connection with the mold of the injection molding machine. The injection end of the injection unit 30 passes through the slide 20 and is vertically downward. In this way, a modular design of the vertical injection mechanism can be realized, so that the vertical injection mechanism can be adapted to different types of injection molding machines.
[0037] A guide mechanism is provided between the base 10 and the slide 20. The guide mechanism includes a slider and a slide rail that slide and adapt to each other. A first drive mechanism 40 is provided on one side of the base 10. The drive end of the first drive mechanism 40 is connected to the slide 20 and drives the slide 20 to move left and right. The drive end of the first drive mechanism 40 is connected to a linkage rod 80. One end of the linkage rod 80 is connected to one side of the slide 20 through a linkage block 90. In this way, the position of the injection unit 30 in the left and right direction can be adjusted. The first drive mechanism 40 is preferably a hydraulic cylinder.
[0038] A guide post 50 is installed on the upper end of the slide block 20. A movable seat 60 capable of moving up and down is installed on the guide post 50. A second drive mechanism 70 is installed on the movable seat 60. The drive end of the second drive mechanism 70 is connected to the movable seat 60 and drives the movable seat 60 to move up and down. The upper end of the injection unit 30 is connected to the movable seat 60. The lower end of the injection unit 30 passes through the slide block 20 and extends out of the lower end of the slide block 20. The injection end of the injection unit 30 is formed at the lower end of the injection unit 30.
[0039] A support plate 101 is installed on the upper end of the slide block 20. There are two guide posts 50, which are respectively located at two opposite corners of the support plate 101. The two opposite sides of the movable seat 60 are respectively connected to the two guide posts 50. The lower end of the injection unit 30 passes through the support plate 101 and the slide block 20 in sequence.
[0040] There are two second drive mechanisms 70, which are respectively located at the other two opposite corners of the support plate 101. The second drive mechanism 70 is preferably a motor. The drive ends of the two second drive mechanisms 70 are connected to lead screws 102. The lower end of the lead screw 102 is connected to the rotating shaft 104 on the support plate 101 through a coupling 103. The lead screw 102 is connected to the movable seat 60 through a lead screw 102 nut. In this way, the position of the injection unit 30 in the vertical direction can be adjusted.
[0041] like Figure 4 As shown, in this embodiment, the injection unit 30 includes a material tube 31, a nozzle 32 connected to the lower end of the material tube 31, a screw 33 inserted into the material tube 31, and a drive motor 34 mounted on the movable seat 60 for driving the screw 33. The upper end of the material tube 31 is connected to the movable seat 60, and the lower end of the material tube 31 passes through the slide 20 and extends out of the lower end of the slide 20. The injection end of the injection unit 30 is formed at the lower end of the nozzle 32. The material tube 31 has a feeding chamber 311, and a feeding tube 35 connected to the feeding chamber 311 is connected to the material tube 31.
[0042] In summary, the key design feature of this utility model lies in its modular design of the vertical injection mechanism. This design incorporates a detachable base mounted on the mold of an injection molding machine, a slide mounted on the base that can move left and right, and an injection unit mounted on the slide that can move up and down. The base is equipped with several connection holes for threaded connection with the mold of the injection molding machine. This modular design allows the vertical injection mechanism to be adapted to different types of injection molding machines. Furthermore, the injection unit's injection end position is adjustable in all directions to accommodate the assembly requirements of various injection molding machine models.
Claims
1. A vertical injection mechanism for an injection molding machine, characterized in that: The device includes a base that can be detachably mounted on the mold of an injection molding machine, a slide that can be moved left and right on the base, and an injection unit that can be moved up and down on the slide. The base is provided with several connection holes for threaded connection with the mold of the injection molding machine. The injection end of the injection unit passes through the slide and is set vertically downward. A guide mechanism is provided between the base and the slide. A first drive mechanism is provided on one side of the base. The drive end of the first drive mechanism is connected to the slide and drives the slide to move left and right. A guide post is installed on the upper end of the slide. A movable seat that can move up and down is installed on the guide post. A second drive mechanism is installed on the movable seat. The drive end of the second drive mechanism is connected to the movable seat and drives the movable seat to move up and down. The upper end of the injection unit is connected to the movable seat. The lower end of the injection unit passes through the slide and extends out of the lower end of the slide. The injection end of the injection unit is formed at the lower end of the injection unit. The first drive mechanism has a drive end connected to a linkage rod, and one end of the linkage rod is connected to one side of the slide block through a linkage block; A support plate is installed on the upper end of the slide block. There are two guide posts, which are respectively located at two opposite corners of the support plate. The two opposite sides of the movable seat are respectively connected to the two guide posts. The lower end of the injection unit passes through the support plate and the slide block in sequence. There are two second drive mechanisms, which are respectively located at the other two opposite corners of the support plate. The drive ends of the two second drive mechanisms are connected to lead screws. The lower ends of the lead screws are connected to the rotating shaft on the support plate through couplings. The lead screws are connected to the movable seat through lead screw nuts. The injection unit includes a material tube, a nozzle connected to the lower end of the material tube, a screw inserted into the material tube, and a drive motor mounted on the movable seat for driving the screw. The upper end of the material tube is connected to the movable seat, and the lower end of the material tube passes through the slide and extends out of the lower end of the slide. The injection end of the injection unit is formed at the lower end of the nozzle.
2. The vertical injection mechanism of an injection molding machine according to claim 1, characterized in that: The guiding mechanism includes a slider and a slide rail that slide and adapt to each other.
3. The vertical injection mechanism of an injection molding machine according to claim 1, characterized in that: The first driving mechanism is a hydraulic cylinder.
4. The vertical injection mechanism of an injection molding machine according to claim 1, characterized in that: The second drive mechanism is a motor.
5. The vertical injection mechanism of an injection molding machine according to claim 1, characterized in that: The feed tube has a feeding chamber, and a feeding tube connected to the feed tube communicates with the feeding chamber.