Multi-station injection molding equipment
By using a second rotary motor to drive the worm gear and turbine transmission system and electric telescopic rod, combined with threaded transmission, the automated control of multi-station injection molding equipment is realized. This solves the problem of low automation in traditional injection molding equipment, simplifies the mold change process, and adapts to small-batch, multi-variety production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU AMEI PLASTIC CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional injection molding equipment has a low degree of automation, involves many manual operations, and requires cumbersome mold changes, making it difficult to meet the needs of small-batch, multi-variety production.
The system employs a second rotary motor to drive a worm gear and turbine transmission system, combined with an electric telescopic rod and threaded transmission, to achieve automated control of mold angle adjustment, injection head lifting and lowering, and mold opening and closing. The mold box can be quickly installed and disassembled through a slide bar and screw structure.
It enables automated, precise, and collaborative operation of molds, reduces operational risks, simplifies mold change processes, and adapts to the needs of small-batch, multi-variety production.
Smart Images

Figure CN224255906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing machinery technology, and in particular to a multi-station injection molding equipment. Background Technology
[0002] This device is specifically a multi-station rotary injection molding machine used to achieve efficient and automated production of plastic products;
[0003] Traditional injection molding equipment suffers from the following technical pain points: low level of automation and many manual operation steps, which not only increases operational risks but also makes it difficult to achieve precise control of multi-station collaboration; mold replacement relies on manual disassembly and calibration, which is cumbersome and time-consuming, making it difficult to meet the needs of small-batch, multi-variety production. Utility Model Content
[0004] The main objective of this invention is to provide a multi-station injection molding equipment that can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A multi-station injection molding machine includes a base plate, with support feet fixedly connected to the four corners of the lower end of the base plate, and fixed frames fixedly connected to the middle of the left and right ends of the base plate. An injection molding device is mounted on both fixed frames, and an adjustment device is fixedly connected to the middle of the upper end of the base plate.
[0007] The adjustment device includes a main plate, with side plates fixedly connected to both the left and right ends of the main plate. A second rotary motor is fixedly connected to the right end of the right side plate. The output end of the second rotary motor is fixedly connected to a worm gear through the right side plate. The worm gear is meshed with a turbine. A connecting rod is fixedly connected to the upper end of the turbine. An installation assembly is fixedly connected to the upper end of the connecting rod. The lower end of the main plate is fixedly connected to the upper end of the base plate.
[0008] Preferably, the two side plates are arranged in a left-right mirror image, the left end of the worm gear is movably connected to the right end of the left side plate through a bearing, and the lower end of the turbine is movably connected to the upper end of the main body plate through a rotating shaft.
[0009] Preferably, the mounting assembly includes a rotating disk, with four connecting frames snapped onto the upper end of the rotating disk, and four electric telescopic rods fixedly connected to the lower end of the rotating disk. The output ends of the four electric telescopic rods pass through the rotating disk and are fixedly connected to mold boxes. Slide strips are fixedly connected to both ends of the outer sides of the four mold boxes. Mounting plates are fixedly connected to both ends of the outer sides of the four connecting frames. Screws are provided in each of the eight mounting plates. Eight screw holes are opened at the upper end of the rotating disk, and the lower end of the rotating disk is fixedly connected to the upper end of the connecting rods.
[0010] Preferably, each of the inner walls of the four connecting frames has a groove at both ends that matches the slide bar, and the four mold boxes are slidably connected to the four connecting frames through the slide bars at both ends.
[0011] Preferably, all eight screws are threaded through eight mounting plates and connected to eight screw holes.
[0012] Preferably, the injection molding device includes a first rotary motor and a fixed column. The output end of the first rotary motor is fixedly connected to a threaded rod, and the outer surface of the threaded rod is threadedly connected to a threaded sleeve. The outer surface of the fixed column is movably fitted with a movable sleeve. The outer surfaces of both the threaded sleeve and the movable sleeve are fixedly connected to connecting blocks. The inner sides of the two connecting blocks are jointly fixedly connected to a storage plate. The upper end of the storage plate is inserted and fixedly connected to an injection tube. The lower end of the storage plate is fixedly installed with an injection head. The outer surface of the injection head is fitted with a valve. The lower end of the first rotary motor is fixedly connected to the upper left part of the base plate. The two ends of the fixed column are fixedly connected to the upper inner wall of the right-side fixed frame and the upper right part of the base plate, respectively.
[0013] Preferably, the two connecting blocks are integrally fixedly welded to the threaded sleeve and the connecting block, and the upper end of the valve is fixedly connected to the lower end of the storage plate.
[0014] Preferably, the upper end of the threaded rod is movably connected to the upper inner wall of the left fixed frame via a bearing.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] In this invention, the mold angle adjustment, injection head lifting and lowering, and mold opening and closing are automatically controlled by driving components such as a second rotary motor and an electric telescopic rod, reducing manual intervention, ensuring precise collaborative operation of multiple workstations, and reducing operational risks.
[0017] In this invention, an electric telescopic rod is used in conjunction with a combination structure of slide bar, screw and screw hole to realize the quick sliding installation and disassembly of mold box, which greatly simplifies the mold change process and quickly adapts to the needs of small batch and multi-variety production. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a multi-station injection molding equipment according to the present invention;
[0019] Figure 2 This is a schematic diagram showing the connection and disassembly of the injection molding device of a multi-station injection molding equipment according to this utility model;
[0020] Figure 3 This is a schematic diagram showing the connection and disassembly of the adjustment device of a multi-station injection molding equipment according to this utility model;
[0021] Figure 4 This is a schematic diagram showing the connection and disassembly of the installation components of a multi-station injection molding equipment according to this utility model.
[0022] In the diagram: 1. Base plate; 2. Support feet; 3. Fixing frame; 4. Injection molding device; 5. Adjustment device; 41. First rotary motor; 42. Threaded rod; 43. Threaded loop; 44. Fixed column; 45. Movable loop; 46. Connecting block; 47. Storage plate; 48. Injection pipe; 49. Injection head; 450. Valve; 51. Main plate; 52. Side plate; 53. Second rotary motor; 54. Worm gear; 55. Turbine; 56. Connecting rod; 57. Mounting assembly; 571. Rotary disk; 572. Connecting outer frame; 573. Electric telescopic rod; 574. Mold box; 575. Sliding bar; 576. Mounting plate; 577. Screw; 578. Screw hole. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Please see Figure 1-4 This utility model provides a technical solution:
[0027] A multi-station injection molding machine includes a base plate 1, with support feet 2 fixedly connected to the four corners of the lower end of the base plate 1, and fixed frames 3 fixedly connected to the middle of the left and right ends of the base plate 1. The two fixed frames 3 are jointly provided with an injection molding device 4, and an adjustment device 5 is fixedly connected to the middle of the upper end of the base plate 1.
[0028] In this embodiment, the adjustment device 5 includes a main plate 51. Side plates 52 are fixedly connected to both the left and right ends of the main plate 51. A second rotary motor 53 is fixedly connected to the right end of the right side plate 52. The output end of the second rotary motor 53 passes through the right side plate 52 and is fixedly connected to a worm gear 54. The worm gear 54 is meshed with a turbine 55. A connecting rod 56 is fixedly connected to the upper end of the turbine 55. An installation assembly 57 is fixedly connected to the upper end of the connecting rod 56. The lower end of the main plate 51 is fixedly connected to the upper end of the base plate 1. The two side plates 52 are arranged in a left-right mirror image. The left end of the worm gear 54 is movably connected to the right end of the left side plate 52 via a bearing. The lower end of the turbine 55 is movably connected to the upper end of the main plate 51 via a rotating shaft. The installation assembly 57 includes a rotating disk 571. Four connecting frames 572 are snapped onto the upper end of the rotating disk 571. Four electric telescopic rods 573 are fixedly connected to the lower end of the mold box 574. The output ends of the four electric telescopic rods 573 pass through the rotating disk 571 and the connecting outer frame 572 and are fixedly connected to the mold box 574. Slide strips 575 are fixedly connected to both ends of the outer side of the four mold boxes 574. Mounting plates 576 are fixedly connected to both ends of the outer side of the four connecting outer frames 572. Screws 577 are provided in the eight mounting plates 576. Eight screw holes 578 are opened at the upper end of the rotating disk 571. The lower end of the rotating disk 571 is fixedly connected to the upper end of the connecting rod 56. Slide grooves that match the slide strips 575 are opened at both ends of the inner wall surface of the four connecting outer frames 572. The four mold boxes 574 are slidably connected to the four connecting outer frames 572 through the slide strips 575 at both ends. The eight screws 577 are threaded through the eight mounting plates 576 and the eight screw holes 578.
[0029] Through the above scheme: the second rotary motor 53 drives the worm gear 54 to rotate, and through the meshing transmission with the turbine 55, drives the connecting rod 56 and the rotating disk 571 to rotate, thereby realizing the adjustment of the mold angle. The left and right mirror side plates 52 support the two ends of the worm gear 54 through bearings to ensure smooth transmission. The lower end of the turbine 55 is movably connected to the main body plate 51, providing vertical support and reducing friction. The mold box 574 slides with the connecting outer frame 572 through the sliding groove of the slide bar 575 to realize the lifting and guiding. The electric telescopic rod 573 drives the mold box 574 to move up and down along the slide bar 575 to complete the mold opening and closing action. When changing the mold, loosening the screw 577 allows the connecting outer frame 572 to be quickly removed from the rotating disk 571, and precise positioning and installation can be achieved with the screw hole 578.
[0030] In this embodiment, the injection molding device 4 includes a first rotary motor 41 and a fixed column 44. A threaded rod 42 is fixedly connected to the output end of the first rotary motor 41. A threaded sleeve 43 is threadedly connected to the outer surface of the threaded rod 42. A movable sleeve 45 is movably sleeved on the outer surface of the fixed column 44. Connecting blocks 46 are fixedly connected to the outer surfaces of both the threaded sleeve 43 and the movable sleeve 45. A storage plate 47 is fixedly connected to the inner surfaces of the two connecting blocks 46. An injection tube 48 is inserted and fixedly connected to the upper end of the storage plate 47. A filling head 49 is fixedly installed at the lower end of the base plate 1. A valve 450 is installed on the outer surface of the filling head 49. The lower end of the first rotary motor 41 is fixedly connected to the upper left part of the base plate 1. The two ends of the fixed column 44 are fixedly connected to the upper inner wall of the right fixed frame 3 and the upper right part of the base plate 1, respectively. The two connecting blocks 46 are integrally fixedly welded to the threaded sleeve 43 and the connecting block 46. The upper end of the valve 450 is fixedly connected to the lower end of the storage plate 47. The upper end of the threaded rod 42 is movably connected to the upper inner wall of the left fixed frame 3 through a bearing.
[0031] Through the above scheme: the first rotary motor 41 drives the threaded rod 42 to rotate, which in turn drives the threaded loop 43 to move along the rod axis. The movable loop 45 slides synchronously on the fixed column 44. The connecting block 46 is linked with the threaded loop 43 to ensure that the storage plate 47 rises and falls smoothly. The plastic raw material enters the storage plate 47 through the injection pipe 48 and is injected into the mold through the injection head 49. The valve 450 controls the start and stop of injection and the flow rate. The two ends of the threaded rod 42 are connected to the fixed frame 3 through bearings to ensure smooth rotation. The integrated welded connecting block 46 enhances the structural rigidity and prevents deformation under stress. The device achieves precise position control of the injection head 49 through the threaded transmission driven by the rotary motor, and completes the injection process in conjunction with the valve 450, meeting the needs of multi-station injection molding.
[0032] It should be noted that this utility model is a multi-station injection molding equipment. During use, firstly, the connecting frame 572 and the rotating disk 571 are fixed in place by screws 577 through screws 577. The mold box 574 is positioned by sliding strips 575 engaging with the sliding grooves of the connecting frame 572. The electric telescopic rod 573 drives the mold box 574 to rise, completing the mold closing action. The second rotary motor 53 drives the worm gear 54 to rotate, which in turn drives the connecting rod 56 and the rotating disk 571 to rotate via the worm gear 55, rotating the mold box 574 to be injected below the injection head 49. The first rotary motor 41 drives the threaded rod 42 to rotate, and the threaded loop 43 and the movable loop 45 work together to lower the storage plate 47 into the mold box 57. Above 4, plastic raw material enters the storage plate 47 through the injection pipe 48. The valve 450 is opened, and the injection head 49 injects the raw material into the mold box 574. After injection molding is completed, the injection head 49 rises and resets, and the rotary disk 571 rotates to the next station. The molded mold enters the cooling stage. The empty mold box 574 rotates to the injection position, and the electric telescopic rod 573 drives the mold box 574 to rise, opening the mold to complete demolding. The product is removed manually or automatically, and the mold is cleaned. The adjusting device 5 achieves precise angle control of the rotary disk 571 through the transmission of the turbine 54 and the worm gear 55. The injection molding device 4 ensures accurate positioning of the injection head 49 through the double guide structure. The quick-change design of the mold box 574 supports quick switching between different molds.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-station injection molding machine, comprising a base plate (1), characterized in that: Support feet (2) are fixedly connected to the four corners of the lower end of the base plate (1). Fixing frames (3) are fixedly connected to the middle of the left end and the middle of the right end of the base plate (1). An injection molding device (4) is provided on both fixing frames (3). An adjustment device (5) is fixedly connected to the middle of the upper end of the base plate (1). The adjustment device (5) includes a main plate (51), with side plates (52) fixedly connected to the left and right ends of the main plate (51). A second rotary motor (53) is fixedly connected to the right end of the right side plate (52). A worm gear (54) is fixedly connected to the output end of the second rotary motor (53) through the right side plate (52). A turbine (55) is meshed with the worm gear (54). A connecting rod (56) is fixedly connected to the upper end of the turbine (55). An installation assembly (57) is fixedly connected to the upper end of the connecting rod (56). The lower end of the main plate (51) is fixedly connected to the upper end of the base plate (1).
2. The multi-station injection molding equipment according to claim 1, characterized in that: The two side plates (52) are arranged in a left-right mirror image. The left end of the worm gear (54) is movably connected to the right end of the left side plate (52) through a bearing. The lower end of the turbine (55) is movably connected to the upper end of the main body plate (51) through a rotating shaft.
3. The multi-station injection molding equipment according to claim 1, characterized in that: The mounting assembly (57) includes a rotating disk (571), with four connecting frames (572) snapped onto the upper end of the rotating disk (571). Four electric telescopic rods (573) are fixedly connected to the lower end of the rotating disk (571). The output ends of the four electric telescopic rods (573) pass through the rotating disk (571) and the connecting frames (572) and are fixedly connected to mold boxes (574). Slide strips (575) are fixedly connected to both ends of the outer sides of the four mold boxes (574). Mounting plates (576) are fixedly connected to both ends of the outer sides of the four connecting frames (572). Screws (577) are provided in each of the eight mounting plates (576). Eight screw holes (578) are opened at the upper end of the rotating disk (571). The lower end of the rotating disk (571) is fixedly connected to the upper end of the connecting rod (56).
4. A multi-station injection molding equipment according to claim 3, characterized in that: The inner walls of the four connecting frames (572) are provided with grooves at both ends that are compatible with the slide bars (575). The four mold boxes (574) are slidably connected to the four connecting frames (572) through the slide bars (575) at both ends.
5. A multi-station injection molding equipment according to claim 3, characterized in that: The eight screws (577) are threaded through the eight mounting plates (576) and the eight screw holes (578).
6. A multi-station injection molding equipment according to claim 1, characterized in that: The injection molding device (4) includes a first rotary motor (41) and a fixed column (44). The output end of the first rotary motor (41) is fixedly connected to a threaded rod (42). The outer surface of the threaded rod (42) is threadedly connected to a threaded sleeve (43). The outer surface of the fixed column (44) is movably sleeved with a movable sleeve (45). The outer surfaces of both the threaded sleeve (43) and the movable sleeve (45) are fixedly connected to connecting blocks (46). The inner surfaces of the two connecting blocks (46) are... A storage plate (47) is fixedly connected to the storage plate (47). A filling pipe (48) is fixedly connected to the upper end of the storage plate (47). A filling head (49) is fixedly installed at the lower end of the storage plate (47). A valve (450) is installed on the outer surface of the filling head (49). The lower end of the first rotary motor (41) is fixedly connected to the upper left part of the base plate (1). The two ends of the fixed column (44) are fixedly connected to the upper inner wall of the right side fixed frame (3) and the upper right part of the base plate (1), respectively.
7. A multi-station injection molding equipment according to claim 6, characterized in that: The two connecting blocks (46) are integrally fixedly welded with the threaded sling (43) and the connecting block (46), and the upper end of the valve (450) is fixedly connected to the lower end of the storage plate (47).
8. A multi-station injection molding equipment according to claim 6, characterized in that: The upper end of the threaded rod (42) is movably connected to the upper inner wall of the left fixed frame (3) via a bearing.