Injection molding machine for a baby carriage accessory

By adopting a shaftless screw design and hydraulic drive in the injection molding machine, the problem of difficult cleaning of molten plastic adhesion has been solved, achieving convenient cleaning and improved equipment durability, thus improving product quality.

CN224391825UActive Publication Date: 2026-06-23DINGZHOU LIRUIDA BABY CARRIAGE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DINGZHOU LIRUIDA BABY CARRIAGE CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-23

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    Figure CN224391825U_ABST
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Abstract

The application relates to the technical field of injection molding equipment, in particular to a child stroller accessory injection molding machine which comprises a machine body, a feeding mechanism connected to the machine body, a heating mechanism connected to the machine body and an injection molding pipeline connected to the inside of the machine body, the injection molding pipeline comprises an injection molding shell connected to the machine body and an injection molding screw connected to the inside of the injection molding shell in a rotating mode, the axial direction of the injection molding shell and the length direction of the injection molding screw are parallel to the length direction of the machine body, the machine body drives the injection molding screw to move along the length direction of the machine body, and the injection molding screw is a shaftless screw. The application has the advantage that the user can conveniently clean the injection molding machine.
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Description

Technical Field

[0001] This application relates to the technical field of injection molding equipment, and in particular to an injection molding machine for a stroller accessory. Background Technology

[0002] A children's vehicle is a tool vehicle used by children for play. There are various models, and children's vehicle accessories are produced and selected according to the model. The production of plastic product accessories requires the use of injection molding machines. Injection molding machines are the main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting plastics.

[0003] Injection molding machines heat plastic and apply high pressure to the molten plastic, causing it to be injected and fill the mold cavity, thus producing children's vehicle parts. An injection molding machine includes a machine body, a heating mechanism for melting the plastic, an injection pipe, and a feeding mechanism. During production, the user places the plastic raw material into the feeding mechanism, which then enters the injection pipe. The heating mechanism heats and melts the plastic raw material inside the injection pipe. The injection pipe includes an injection shell and an injection screw rotatably connected inside the injection shell. One end of the injection shell has an injection port that connects to the mold. The injection screw pushes the molten plastic raw material through the injection port into the mold, where it cools and is then molded into children's vehicle parts.

[0004] Regarding the aforementioned technologies, molten plastic raw materials will adhere to the shaft of the injection molding auger after cooling, requiring timely cleaning of the auger. During cleaning, due to the small angle between the shaft and the auger blades, cleaning tools have difficulty removing the dead corners, making cleaning quite challenging. Utility Model Content

[0005] To facilitate user cleaning of the injection molding machine, this application provides an injection molding machine for children's stroller accessories.

[0006] The injection molding machine for a children's stroller accessory provided in this application adopts the following technical solution:

[0007] An injection molding machine for children's stroller accessories includes a machine body, a feeding mechanism connected to the machine body, a heating mechanism connected to the machine body, and an injection pipe connected to the interior of the machine body. The injection pipe includes an injection shell connected to the machine body and an injection screw rotatably connected inside the injection shell. The axial direction of the injection shell and the length direction of the injection screw are both parallel to the length direction of the machine body. The machine body drives the injection screw to move along the length direction of the machine body. The injection screw is a shaftless screw.

[0008] By adopting the above technical solution, the raw materials are fed and propelled by a shaftless screw, which can reduce the amount of raw materials in the molten state adhering to the inside of the injection molding pipe, reduce the cleaning pressure, and facilitate the user's cleaning of this application.

[0009] Optionally, the number of injection molding screws is two, and the two injection molding screws are arranged sequentially along the width direction of the machine body.

[0010] By adopting the above technical solution, the pushing pressure of the injection molding auger is reduced, thereby improving the durability of this application.

[0011] Optionally, the machine body is provided with a machine head, a hydraulic cylinder, and a mounting plate fixedly connected to the output end of the hydraulic cylinder. The movement direction of the output end of the hydraulic cylinder is parallel to the length direction of the machine body, and the end of the injection molding auger is rotatably connected to the mounting plate.

[0012] By adopting the above technical solution, the die head provides power to this application, the mounting plate provides an installation position for the injection auger, and the hydraulic cylinder can push the mounting plate and the injection auger as a whole to move towards the mold, injecting molten plastic into the mold to achieve the purpose of production.

[0013] Optionally, the injection molding pipe further includes an electric rotating shaft rotatably connected to the mounting plate and a top block connected to the end of the injection molding auger. The electric rotating shaft is electrically connected to the machine head. The electric rotating shaft and the top block are respectively located at both ends of the injection molding auger. The end of the injection molding auger is rotatably connected to the top block. The top block is slidably connected to the inner wall of the injection molding housing. The machine head drives the injection molding auger to rotate inside the injection molding housing. The top block is located at the end of the injection molding auger away from the machine head.

[0014] By adopting the above technical solution, the injection molding screw can be driven, and the injection molding screw can rotate stably to achieve the purpose of conveying plastic raw materials, fully melting plastic raw materials, and feeding.

[0015] Optionally, the feeding mechanism is provided with a feeding bin, which is located directly above the end of the injection molding auger near the mounting plate.

[0016] By adopting the above technical solution, it is easy to feed materials and at the same time, the raw materials can be fully melted.

[0017] Optionally, the end of the top block away from the machine head is a pointed tip, and the end of the injection molding housing away from the machine head is also a pointed tip.

[0018] By adopting the above technical solution, the molten plastic can be fully extruded into the mold, reducing the formation of air bubbles and improving product quality.

[0019] Optionally, the surface of the top block is a smooth surface.

[0020] By adopting the above technical solution, the amount of plastic raw material remaining on the surface of the top block in the molten state is reduced, the utilization rate of raw materials is improved, and it is easier for users to clean.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] The injection auger in this application adopts the direction of a shaftless auger, which prevents molten plastic from adhering to the shaft of the injection auger, making it easier for users to clean and reducing the difficulty of cleaning.

[0023] This application uses two injection molding screws that work together, which greatly reduces the working stress of the injection molding screws and improves their durability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an injection molding machine for a children's stroller accessory disclosed in an embodiment of this application.

[0025] Figure 2 This is a cross-sectional view of the injection-molded pipe in an embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the injection-molded pipe in an embodiment of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Machine body; 11. Machine head; 12. Hydraulic cylinder; 13. Mounting plate; 2. Feeding mechanism; 21. Feeding bin; 3. Heating mechanism; 4. Injection pipe; 41. Injection shell; 42. Injection auger; 43. Electric rotating shaft; 44. Top block. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail.

[0029] Currently, in order to facilitate users in cleaning injection molding machines, this application embodiment proposes an injection molding machine for children's stroller accessories.

[0030] This application discloses an injection molding machine for children's stroller accessories. (Refer to...) Figure 1An injection molding machine for children's stroller accessories includes a machine body 1, a feeding mechanism 2 connected to the machine body 1, a heating mechanism 3 connected to the machine body 1, and an injection pipe 4 connected inside the machine body 1. The injection pipe 4 includes an injection shell 41 connected to the machine body 1 and an injection screw 42 rotatably connected inside the injection shell 41. The axial direction of the injection shell 41 and the length direction of the injection screw 42 are both parallel to the length direction of the machine body 1. The machine body 1 drives the injection screw 42 to move along the length direction of the machine body 1. The injection screw 42 is a shaftless screw.

[0031] The body 1, feeding mechanism 2, heating mechanism 3, and injection pipe 4 are the basic structures for melting plastic raw materials in this application. By feeding and pushing the raw materials through a shaftless screw, the amount of raw materials in the molten state adhering to the inside of the injection pipe 4 can be reduced, so that the molten plastic cannot adhere to the shaft of the injection screw 42, reducing the cleaning pressure and making it easier for users to clean this application.

[0032] Reference Figure 1 The feeding mechanism 2 is equipped with a feeding chamber 21, which is located directly above the injection auger 42 near the mounting plate 13, making it convenient for the user to feed materials and allowing the raw materials to be fully melted.

[0033] Reference Figure 1 The machine body 1 is equipped with a machine head 11, a hydraulic cylinder 12, and a mounting plate 13 fixedly connected to the output end of the hydraulic cylinder 12. The movement direction of the output end of the hydraulic cylinder 12 is parallel to the length direction of the machine body 1. The end of the injection auger 42 is rotatably connected to the mounting plate 13 to achieve the purpose of rotating the injection auger 42 for feeding. The machine head 11 provides power for this application, the mounting plate 13 provides a mounting position for the injection auger 42, and the hydraulic cylinder 12 can push the mounting plate 13 and the injection auger 42 as a whole to move towards the mold, injecting molten plastic into the mold to achieve the purpose of production.

[0034] Reference Figure 2 and Figure 3 The injection molding screws 42 are arranged in two rows along the width of the machine body 1, reducing the pushing pressure of the injection molding screws 42 and improving the durability of this application. In other embodiments of this application, the two injection molding screws 42 may also be arranged in a staggered direction, so that each injection molding screw 42 can advance the raw material for half a process, further reducing the working pressure of a single injection molding screw 42 and improving the durability of this application.

[0035] Reference Figure 2 and Figure 3The injection pipe 4 also includes an electric rotating shaft 43 rotatably connected to the mounting plate 13 and a top block 44 connected to the end of the injection auger 42. The electric rotating shaft 43 is electrically connected to the machine head 11. The electric rotating shaft 43 and the top block 44 are located at the two ends of the injection auger 42, respectively. The electric rotating shaft 43 realizes the purpose of rotatably connecting the injection auger 42 to the mounting plate 13. The end of the injection auger 42 is rotatably connected to the top block 44, so that the injection auger 42 can rotate stably. The top block 44 is slidably connected to the inner wall of the injection housing 41, so that the top block 44 can stably push the molten plastic into the mold along the length direction of the machine body 1. The machine head 11 drives the injection auger 42 to rotate inside the injection housing 41. The top block 44 is located at the end of the injection auger 42 away from the machine head 11. The end of the top block 44 away from the machine head 11 is a pointed tip, and the surface of the top block 44 is a smooth surface. This reduces the amount of molten plastic material remaining on the surface of the top block 44, improving material utilization and facilitating cleaning for the user. The end of the injection housing 41 furthest from the die head 11 is pointed, allowing the molten plastic to be fully extruded into the mold, reducing bubble formation and improving product quality.

[0036] After starting the machine head 11, it drives the electric rotating shaft 43 to rotate, thereby driving the injection molding screw 42 and enabling the injection molding screw 42 to rotate stably, so as to convey plastic raw materials, fully melt the plastic raw materials and feed them.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An injection molding machine for children's stroller accessories, comprising a machine body (1), a feeding mechanism (2) connected to the machine body (1), a heating mechanism (3) connected to the machine body (1), and an injection molding pipe (4) connected inside the machine body (1), characterized in that: The injection pipe (4) includes an injection shell (41) connected to the machine body (1) and an injection screw (42) rotatably connected inside the injection shell (41). The axial direction of the injection shell (41) and the length direction of the injection screw (42) are both parallel to the length direction of the machine body (1). The machine body (1) drives the injection screw (42) to move along the length direction of the machine body (1). The injection screw (42) is a shaftless screw.

2. The injection molding machine for a children's stroller accessory according to claim 1, characterized in that: The number of injection molding screws (42) is two, and the two injection molding screws (42) are arranged sequentially along the width direction of the machine body (1).

3. The injection molding machine for a children's stroller accessory according to claim 1, characterized in that: The machine body (1) is provided with a machine head (11), a hydraulic cylinder (12) and a mounting plate (13) fixedly connected to the output end of the hydraulic cylinder (12). The movement direction of the output end of the hydraulic cylinder (12) is parallel to the length direction of the machine body (1). The end of the injection molding auger (42) is rotatably connected to the mounting plate (13).

4. The injection molding machine for a children's stroller accessory according to claim 3, characterized in that: The injection pipe (4) further includes an electric rotating shaft (43) rotatably connected to the mounting plate (13) and a top block (44) connected to the end of the injection auger (42). The electric rotating shaft (43) is electrically connected to the machine head (11). The electric rotating shaft (43) and the top block (44) are located at the two ends of the injection auger (42). The end of the injection auger (42) is rotatably connected to the top block (44). The top block (44) is slidably connected to the inner wall of the injection housing (41). The machine head (11) drives the injection auger (42) to rotate inside the injection housing (41). The top block (44) is located at the end of the injection auger (42) away from the machine head (11).

5. The injection molding machine for a children's stroller accessory according to claim 4, characterized in that: The feeding mechanism (2) is provided with a feeding bin (21), which is located directly above the injection auger (42) near the mounting plate (13).

6. The injection molding machine for a children's stroller accessory according to claim 4, characterized in that: The end of the top block (44) away from the machine head (11) is a pointed end, and the end of the injection molding housing (41) away from the machine head (11) is also a pointed end.

7. The injection molding machine for a children's stroller accessory according to claim 6, characterized in that: The surface of the top block (44) is a smooth surface.