Plastic pipe head injection molding device
By installing a feeding mechanism, including crushing and metering components, in the plastic tube injection molding device, the problem of large raw material particles affecting melting efficiency is solved, and quantitative feeding and preheating are achieved, thereby improving injection molding efficiency.
Patent Information
- Application Number
- CN202520325970.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing plastic tube head injection molding equipment lacks a raw material handling structure between the hopper and the hot melt extrusion mechanism, resulting in large-particle raw materials affecting melting and injection efficiency, and making it impossible to achieve quantitative feeding and preheating.
A feeding mechanism is installed between the hopper and the hot melt extrusion mechanism. It includes a crushing component and a metering component. The shaft is driven to rotate by a geared motor to realize the crushing and metering of raw materials, and the raw materials are preheated by a hot air blower.
It improves the melting efficiency and injection molding efficiency of raw materials, avoids raw material waste, achieves quantitative feeding and preheating effects, and enhances the working efficiency of injection molding equipment.
Smart Images

Figure CN223864181U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic tube head injection molding technology, and specifically relates to a plastic tube head injection molding device. Background Technology
[0002] Plastic pipe fittings generally refer to components used in plastic piping systems to connect pipes or link them to other components (such as valves, fittings, etc.). They can be designed in different shapes and sizes to meet specific application requirements, enabling functions such as fluid transmission or control. Plastic pipe fittings can be made from various plastic materials, such as PVC, PE, and PP, which are widely used due to their corrosion resistance, lightweight nature, and cost-effectiveness. The production of plastic pipe fittings requires injection molding equipment.
[0003] Problems with existing technology:
[0004] Currently, existing plastic tube injection molding equipment is used because plastic raw materials are usually stored in a silo, and there is usually no raw material processing structure between the silo and the hot melt extrusion mechanism. Therefore, when the raw material is large, it will affect the melting efficiency of subsequent raw materials, and thus affect the injection molding efficiency. At the same time, existing injection molding equipment cannot quantitatively feed raw materials or preheat them. Utility Model Content
[0005] The purpose of this invention is to provide a plastic tube head injection molding device that can crush and preheat the raw material through a feeding mechanism installed between the hopper and the hot melt extrusion mechanism, thereby improving the subsequent melting efficiency and thus the injection molding efficiency. At the same time, the feeding mechanism can also achieve the effect of quantitative feeding, which can avoid excessive raw material entering and causing waste.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A plastic pipe head injection molding device includes a frame, on the top of which a hot melt extrusion mechanism and a mold assembly are fixedly mounted, and on the top of the hot melt extrusion mechanism is a frame;
[0008] The top of the hot melt extrusion mechanism is fixedly installed to the hopper via a feeding mechanism;
[0009] The feeding mechanism includes a housing, a fixed plate, and a hot air blower. A geared motor is fixedly mounted on one side of the housing via a mounting base, and the geared motor drives the feeding assembly to rotate inside the housing.
[0010] The feeding assembly includes a mounting plate, on one side of which a crushing assembly and a metering assembly are rotatably mounted.
[0011] The bottom of the frame is fixedly installed to the machine frame, the hopper is fixedly installed to the top of the frame, and the feeding mechanism is fixedly installed to the hopper.
[0012] The mounting plate is fixedly installed on the housing, the geared motor drives the shaft to rotate, causing the shaft to drive the crushing component and the metering component to rotate, the fixing plates are fixedly installed on the top and bottom of the housing respectively, and the hot air blower is fixedly installed on the housing.
[0013] The crushing assembly includes a toothed ring and a crushing toothed roller. The inner side of the toothed ring is meshed with a gear, and both ends of the crushing toothed roller pass through a fixed rod and are connected to the gear for transmission.
[0014] The mounting plate is provided in two sets, and the toothed ring is fixedly installed on the mounting plate. The gear, the fixing rod and the crushing toothed roller are correspondingly arranged and multiple of them are arranged in a ring. The fixing rod is fixedly installed on the metering component.
[0015] The metering component includes a rotating shaft, a partition plate is fixedly installed on the top of the rotating shaft, and a fixing rod is fixedly installed on the rotating shaft.
[0016] The rotating shaft is fixedly installed on the outside of the shaft rod. The rotating shaft is rotatably installed with the mounting plate. Multiple partitions are provided and arranged around the top of the rotating shaft.
[0017] The technical effects achieved by this utility model are as follows:
[0018] This invention utilizes a mounting base installed on one side of the housing, with a geared motor mounted at the bottom of the mounting base. The geared motor drives a shaft to rotate inside the housing. A metering component is mounted on the outside of the shaft, and this component is fixedly installed to a crushing component via a fixing rod. Therefore, when the shaft drives the metering component to rotate, a metered feeding effect is achieved. Simultaneously, when the fixing rod drives the crushing toothed roller to rotate, the toothed ring is fixedly installed via a mounting plate, and a gear mounted at one end of the crushing toothed roller meshes with the toothed ring, causing the crushing toothed roller to rotate. This crushes the material between the two partitions, preventing excessive material from affecting melting efficiency. Therefore, this device, through the cooperation of the metering component and the crushing component, achieves efficient crushing and metering of raw materials, preventing waste caused by excessive material input, and also improving the working efficiency of the injection molding device.
[0019] This invention features a through-slot on one side of the housing, with the outlet of the hot air blower located on one side of the through-slot. The hot air blower is fixedly installed on the housing. Therefore, by activating the electric heating wire and fan inside the hot air blower, hot air can be sent into the interior of the housing. Thus, when the metering component drives the raw material to rotate and pass through the hot air blower, preheating can be performed, thereby improving the melting efficiency of the raw material in the subsequent process. Attached Figure Description
[0020] Figure 1 This is a three-dimensional view of the overall installation structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the feeding mechanism structure in this utility model;
[0022] Figure 3 This is a schematic diagram of the feeding component structure in this utility model;
[0023] Figure 4 This is a schematic diagram of the installation structure of the crushing component in this utility model;
[0024] Figure 5 This is a schematic diagram of the quantitative component installation structure in this utility model;
[0025] Figure 6 This is a schematic diagram of the mounting plate installation structure in this utility model.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Frame; 2. Hot melt extrusion mechanism; 3. Die assembly; 4. Frame; 5. Hopper; 6. Feeding mechanism; 61. Housing; 62. Fixing plate; 63. Mounting base; 64. Gear motor; 65. Feeding assembly; 651. Mounting plate; 652. Crushing assembly; 6521. Gear ring; 6522. Gear; 6523. Fixing rod; 6524. Crushing toothed roller; 653. Metering assembly; 6531. Rotating shaft; 6532. Partition plate; 66. Hot air blower; 7. Shaft. Detailed Implementation
[0028] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0029] like Figure 1-6 As shown, a plastic pipe head injection molding device includes a frame 1, a hot melt extrusion mechanism 2 and a mold assembly 3 are fixedly installed on the top of the frame 1, and a frame 4 is provided on the top of the hot melt extrusion mechanism 2.
[0030] The top of the hot melt extrusion mechanism 2 is fixedly installed to the hopper 5 via the feeding mechanism 6;
[0031] The feeding mechanism 6 includes a housing 61, a fixing plate 62 and a hot air blower 66. A geared motor 64 is fixedly installed on one side of the housing 61 via a mounting base 63. The geared motor 64 drives the feeding assembly 65 to rotate inside the housing 61.
[0032] The feeding assembly 65 includes a mounting plate 651, on one side of which a crushing assembly 652 and a metering assembly 653 are rotatably mounted.
[0033] See attached document Figure 1 In this embodiment, the bottom of the frame 4 is fixedly installed with the frame 1, the hopper 5 is fixedly installed with the top of the frame 4, and the feeding mechanism 6 is fixedly installed with the hopper 5.
[0034] In the above embodiment, the hopper 5 is fixed to the top of the frame 1 by the frame 4, and the feeding mechanism 6 can process the raw material inside the hopper 5 and send it into the hot melt extrusion mechanism 2. By starting the hot melt extrusion mechanism 2, the raw material can be melted and extruded to the mold assembly 3 for injection molding.
[0035] See attached document Figures 2 to 6 In this embodiment, the mounting plate 651 is fixedly installed on the housing 61, the reduction motor 64 drives the shaft 7 to rotate, so that the shaft 7 drives the crushing component 652 and the metering component 653 to rotate, the fixing plate 62 is fixedly installed on the top and bottom of the housing 61 respectively, and the hot air blower 66 is fixedly installed on the housing 61.
[0036] In the above embodiment, the mounting plate 651 is fixedly installed at both ends of the housing 61, and the shaft 7 is rotatably installed between the mounting plates 651. One end of the shaft 7 is connected to the geared motor 64 for transmission. Therefore, when the geared motor 64 is started, the shaft 7, the crushing component 652 and the metering component 653 can be driven to rotate synchronously.
[0037] The crushing assembly 652 includes a toothed ring 6521 and a crushing toothed roller 6524. A gear 6522 is meshed with the inner side of the toothed ring 6521, and the two ends of the crushing toothed roller 6524 pass through the fixing rod 6523 and are connected to the gear 6522 for transmission.
[0038] Specifically, there are two sets of mounting plates 651, and the toothed rings 6521 are correspondingly set and fixedly installed with the mounting plates 651. The gears 6522, the fixing rods 6523 and the crushing toothed rollers 6524 are correspondingly set and arranged in a ring. Therefore, since the mounting plates 651 are fixedly installed with the housing 61, the position of the toothed rings 6521 will not move. At the same time, since the fixing rods 6523 are fixedly installed with the metering components 653, when the metering components 653 rotate, the fixing rods 6523 can drive the crushing toothed rollers 6524 and the gears 6522 to rotate.
[0039] According to the above structure, the quantitative component 653 includes a rotating shaft 6531, a partition 6532 is fixedly installed on the top of the rotating shaft 6531, and a fixing rod 6523 is fixedly installed with the rotating shaft 6531.
[0040] It should be noted that since the rotating shaft 6531 is fixedly installed on the outside of the shaft 7, and the rotating shaft 6531 is rotatably installed with the mounting plate 651, and multiple partition plates 6532 are provided and arranged around the top of the rotating shaft 6531, when the reduction motor 64 is started to drive the shaft 7 to rotate, the rotating shaft 6531 can drive the partition plates 6532 to rotate, and the rotation of the partition plates 6532 can quantitatively feed the raw materials down.
[0041] Furthermore, since the fixed rod 6523 is installed on the rotating shaft 6531, the fixed rod 6523 can drive the rotating shaft 6531 to rotate, and the fixed rod 6523 can drive the crushing toothed roller 6524 to rotate. Since gears 6522 are installed at both ends of the crushing toothed roller 6524, and the gears 6522 mesh with the toothed ring 6521, the fixed rod 6523 can rotate while rotating on its own axis. The crushing of raw materials can be achieved by the rotation of the fixed rod 6523.
[0042] As can be further explained, the hot air blower 66 installed on one side of the shell 61 can blow out hot air when started. The hot air blower 66 blows out hot air through its internal electric heating wire and the start of the blower, thus preheating the raw materials inside the shell 61 and improving the efficiency of subsequent melting.
[0043] The working principle of this utility model is as follows: Raw materials are placed inside the hopper 5, and the hopper 5 feeds the raw materials into the housing 61. The reduction motor 64 is started, driving the shaft 7 to rotate. The shaft 7, through the rotating shaft 6531, drives the partition plate 6532 to rotate. The rotating shaft 6531, through the fixed rod 6523, drives the crushing toothed roller 6524 to rotate. The rotation of the partition plate 6532 quantitatively feeds the raw materials. Gears 6522 are installed at both ends of the crushing toothed roller 6524, and these gears 6522 mesh with the toothed ring 6521. Therefore, the crushing toothed roller... When roller 6524 drives gear 6522 to rotate along the inner side of toothed ring 6521, crushing toothed roller 6524 can rotate between two partitions 6532 to crush the raw material. When partition 6532 sends the raw material to one side of hot air blower 66, hot air is blown out by starting hot air blower 66. After the raw material is preheated by the rotation of crushing toothed roller 6524, the raw material passes through shell 61 and enters the interior of hot melt extrusion mechanism 2. The hot melt extrusion mechanism 2 is started to melt the raw material and extrude it into mold assembly 3 to complete the injection molding of plastic tube head.
[0044] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A plastic tube head injection molding device, characterized in that, include: A frame (1) is fixedly mounted on the top of the frame (1) with a hot melt extrusion mechanism (2) and a mold assembly (3), and a frame (4) is provided on the top of the hot melt extrusion mechanism (2). The top of the hot melt extrusion mechanism (2) is fixedly installed to the hopper (5) via the feeding mechanism (6); The feeding mechanism (6) includes a housing (61), a fixing plate (62) and a hot air blower (66). A geared motor (64) is fixedly installed on one side of the housing (61) via a mounting base (63). The geared motor (64) drives the feeding assembly (65) to rotate inside the housing (61). The feeding assembly (65) includes a mounting plate (651), on one side of which a crushing assembly (652) and a metering assembly (653) are rotatably mounted.
2. The plastic tube head injection molding device according to claim 1, characterized in that: The bottom of the frame (4) is fixedly installed with the frame (1), the hopper (5) is fixedly installed with the top of the frame (4), and the feeding mechanism (6) is fixedly installed with the hopper (5).
3. The plastic tube head injection molding device according to claim 1, characterized in that: The mounting plate (651) is fixedly installed on the housing (61). The geared motor (64) drives the shaft (7) to rotate, so that the shaft (7) drives the crushing component (652) and the metering component (653) to rotate. The fixing plate (62) is fixedly installed on the top and bottom of the housing (61) respectively. The hot air blower (66) is fixedly installed on the housing (61).
4. The plastic tube head injection molding device according to claim 1, characterized in that: The crushing assembly (652) includes a toothed ring (6521) and a crushing toothed roller (6524). The inner side of the toothed ring (6521) is meshed with a gear (6522), and both ends of the crushing toothed roller (6524) pass through a fixed rod (6523) and are connected to the gear (6522) for transmission.
5. A plastic tube head injection molding device according to claim 4, characterized in that: The mounting plate (651) is provided in two sets, and the toothed ring (6521) is fixedly installed on the mounting plate (651). The gear (6522), the fixing rod (6523) and the crushing toothed roller (6524) are correspondingly arranged and arranged in a ring. The fixing rod (6523) is fixedly installed on the metering component (653).
6. The plastic tube head injection molding device according to claim 5, characterized in that: The quantitative component (653) includes a rotating shaft (6531), a partition plate (6532) is fixedly installed on the top of the rotating shaft (6531), and a fixing rod (6523) is fixedly installed on the rotating shaft (6531).
7. A plastic tube head injection molding device according to claim 6, characterized in that: The rotating shaft (6531) is fixedly installed on the outside of the shaft (7). The rotating shaft (6531) is rotatably installed with the mounting plate (651). Multiple partition plates (6532) are provided and arranged around the top of the rotating shaft (6531).