Discharging hopper capable of rapidly changing materials
By designing a fast-change feeding hopper in the injection molding machine, and using limiting components and lifting drive components to achieve rapid switching between the production hopper and the debugging hopper, the problem of difficulty in observing material flow in large-capacity feeding hoppers is solved, thereby improving equipment debugging efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING JU LING YAN PLASTIC CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-05-12
AI Technical Summary
The large-capacity hopper of existing injection molding machines makes it difficult to observe the material flow, affecting debugging efficiency and product quality, and making it difficult to accurately adjust parameters.
A quick-change feeding hopper was designed, including a guide rail base, a production hopper, and a test hopper. The quick switching between the production hopper and the test hopper is achieved through limit components and lifting drive components, which facilitates observation of material conditions and adjustment of parameters.
It enables rapid material change during equipment debugging, improves the convenience of observing material conditions and production efficiency, and ensures the stability of product quality.
Smart Images
Figure CN224224392U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of injection molding machine feeding technology, and in particular to a feeding hopper for quick material change. Background Technology
[0002] In the plastics manufacturing industry, injection molding machines are typically equipped with large-capacity hoppers to meet continuous production demands. While these hoppers are large and have a fixed structure, ensuring production efficiency, their large size makes it very difficult to observe material flow within the hopper. During equipment setup, frequent observation of material conditions and adjustments to formulations or process parameters are necessary. The difficulty in clearly observing material flow makes it challenging for operators to accurately grasp the actual state of the material, hindering timely and correct adjustments. This not only increases setup time and costs but can also negatively impact final product quality and reduce production efficiency due to inaccurate parameter adjustments, thus requiring further improvement. Utility Model Content
[0003] To facilitate the debugging of injection molding machines, this application provides a quick-change material feeding hopper.
[0004] The fast-change feeding hopper provided in this application adopts the following technical solution:
[0005] A quick-change feeding hopper includes a guide rail seat, a production hopper, and an adjustment hopper. The guide rail seat is positioned above the feed pipe of an injection molding machine and has a sliding cavity extending to the upper end face of the guide rail seat. The feed pipe of the production hopper is fixedly fitted with a slider that is slidably connected to the sliding cavity. The bottom wall of the sliding cavity has a feed port and a material change port that are distributed along the length of the sliding cavity. The feed port is connected to the feed pipe of the injection molding machine. The capacity of the adjustment hopper is smaller than that of the production hopper. An extension pipe for insertion into the feed port is fixed at the lower end of the adjustment hopper. The extension pipe is inserted into the feed pipe of the injection molding machine. The side wall of the adjustment hopper has an observation window.
[0006] By adopting the above technical solution, during the equipment commissioning phase, the production hopper can be moved to the material changing port position, leaving the feeding port empty. Then, the extension tube of the commissioning hopper is inserted into the feeding port and the extruder feed pipe. The small-capacity commissioning hopper makes it easy to observe the material condition and facilitates the commissioning of the injection molding machine. After commissioning, the commissioning hopper is removed, and the production hopper is moved back to the feeding port for production feeding, achieving rapid material change.
[0007] Preferably, the guide rail base is provided with a limiting member to restrict the sliding of the slider. Two sets of limiting members are provided and are respectively provided on one side of the feeding port and the changing port.
[0008] By adopting the above technical solution and setting a limiting component, the slider can be easily restricted to the feeding port or material changing port, thus preventing the slider from sliding accidentally.
[0009] Preferably, the limiting member includes a limiting screw threaded through the side wall of the guide rail seat, with one end of the limiting screw abutting against the side wall of the slider.
[0010] By adopting the above technical solution, after the slider moves into place, the limiting screw is tightened so that one end of the limiting screw abuts against the side wall of the slider, thereby limiting the movement of the slider in a damping manner.
[0011] Preferably, the side wall of the slider is provided with a first limiting hole, and the end of the limiting screw is inserted into the first limiting hole.
[0012] By adopting the above technical solution, after the slider moves into place, the limiting screw is rotated so that the end of the limiting screw is inserted into the first limiting hole, thereby fixing the slider.
[0013] Preferably, the side wall of the slider is provided with a second limiting hole, and the limiting member includes a limiting rod that slides through the side wall of the guide rail seat and an elastic member disposed between the guide rail seat and the limiting rod to force the limiting rod to slide towards the slider. The end of the limiting rod is slidably inserted into the second limiting hole.
[0014] By adopting the above technical solution, when the slider moves to the feeding port or the material changing port, the elastic element can force the end of the limiting rod to insert into the second limiting hole on the side wall of the slider, thereby limiting the sliding of the slider.
[0015] Preferably, the limiting rod is fixedly connected to a mounting plate placed outside the guide rail seat, and the elastic element is a spring sleeved on the limiting rod. One end of the spring is fixedly connected to the outer wall of the guide rail seat, and the other end of the spring is fixedly connected to the mounting plate.
[0016] By adopting the above technical solution, the spring elasticity allows the limiting rod to automatically insert into the second limiting hole of the slider to achieve effective limiting.
[0017] Preferably, a handle is fixedly connected to the outer wall of the adjustment hopper.
[0018] By adopting the above technical solution, the hopper can be easily picked up and adjusted by holding the handle.
[0019] Preferably, the side wall of the slider is fixedly connected to an extension plate, the extension plate has a through hole for the extension tube to slide through, and the extension plate is provided with a lifting drive component for driving the adjustment hopper to rise and fall.
[0020] By adopting the above technical solution, the lifting drive can drive the adjustment hopper to descend, so that the extension tube can be accurately inserted into the feeding port and the extruder feed pipe. After the adjustment is completed, the lifting drive drives the adjustment hopper to move up and reset, so that the lower end of the extension tube is above the feeding port. Then the slider can be moved so that the production hopper moves to the feeding port for production unloading.
[0021] Preferably, the upper outer peripheral wall of the adjustment hopper is fixedly connected to an installation ring plate, the lifting drive component is a telescopic cylinder, the cylinder body of the telescopic cylinder is fixedly connected to the extension plate, and the piston rod of the telescopic cylinder is fixedly connected to the installation ring plate.
[0022] By adopting the above technical solution, the telescopic cylinder drives the mounting ring plate to lift and lower the debugging hopper, so that the extension tube of the debugging hopper can be smoothly inserted into or pulled out of the extruder feed pipe.
[0023] In summary, this utility model has the following beneficial effects:
[0024] 1. During the equipment debugging phase, the production hopper can be moved to the material change port position to leave the feed port empty. Then, the extension tube of the debugging hopper can be inserted into the feed port and the extruder feed pipe. The small-capacity debugging hopper makes it easy to observe the material condition and facilitates the debugging of the injection molding machine. After the debugging is completed, the debugging hopper can be removed and the production hopper can be moved back to the feed port for production feeding to achieve quick material change.
[0025] 2. By setting a limit component, the slider can be easily restricted to the feeding port or material changing port to prevent the slider from sliding accidentally;
[0026] 3. The lifting drive can drive the adjustment hopper to descend, so that the extension tube can be accurately inserted into the feeding port and the extruder feed pipe. After the adjustment is completed, the lifting drive drives the adjustment hopper to move up and reset, so that the lower end of the extension tube is above the feeding port. Then the slider can be moved to move the production hopper to the feeding port for production unloading. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of a fast material changing hopper in Embodiment 1;
[0028] Figure 2 This is a schematic diagram of the limiting component in Embodiment 1;
[0029] Figure 3 This is a schematic diagram of the limiting component in Embodiment 2;
[0030] Figure 4 This is a schematic diagram of the overall structure of a fast material changing hopper in Example 3;
[0031] Figure 5 This is a schematic diagram of the structure of the debugging hopper and extension plate in Example 3.
[0032] In the diagram, 10 is the injection molding machine; 101 is the feed pipe; 1 is the guide rail seat; 11 is the sliding cavity; 12 is the feeding port; 13 is the material changing port; 2 is the production hopper; 21 is the slider; 22 is the first limiting hole; 23 is the second limiting hole; 24 is the extension plate; 25 is the through hole; 26 is the guide tube; 3 is the adjustment hopper; 31 is the extension tube; 32 is the handle; 33 is the observation window; 34 is the mounting ring plate; 35 is the guide rod; 4 is the limiting component; 41 is the limiting screw; 42 is the knob; 43 is the limiting rod; 44 is the spring; 45 is the mounting plate; and 5 is the telescopic cylinder. Detailed Implementation
[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0034] Example 1:
[0035] This application discloses a quick-change feeding hopper, referring to... Figure 1 , Figure 2 The system includes a guide rail base 1, a production hopper 2, and an adjustment hopper 3, the latter having a smaller capacity than the production hopper 2. The guide rail base 1 is fixedly connected to the housing of the injection molding machine 10 via a fixing block. The guide rail base 1 has a sliding cavity 11 extending to its upper end face. A feed port 12 and a material exchange port 13 are provided through the bottom wall of the sliding cavity 11, distributed along the length of the sliding cavity 11. The feed port 12 is located directly above the feed pipe 101 of the injection molding machine 10, connecting the feed port 12 to the feed pipe 101. The upper end face of the feed pipe 101 of the injection molding machine 10 abuts against the lower end face of the guide rail base 1.
[0036] The feed pipe of the production hopper 2 is fixedly fitted with a slider 21 that is slidably connected to the sliding cavity 11. The feed pipe of the production hopper 2 is equipped with a switch valve for controlling its opening and closing. The lower end face of the feed pipe of the production hopper 2 is flush with the lower end face of the slider 21. The guide rail seat 1 is provided with a limiting member 4 to restrict the sliding of the slider 21. Two sets of limiting members 4 are provided and are respectively provided on one side of the feed port 12 and the material exchange port 13. In this embodiment, the limiting member 4 includes a limiting screw 41 threaded through the side wall of the guide rail seat 1 and a knob 42 coaxially fixedly connected to the end of the limiting screw 41. The knob 42 is located outside the guide rail seat 1. The side wall of the slider 21 is provided with a first limiting hole 22, and the end of the limiting screw 41 is inserted into the first limiting hole 22.
[0037] The lower end of the test hopper 3 is fixed with an extension tube 31 for insertion into the feed port 12. The upper part of the extension tube 31 has a switch valve for controlling opening and closing. The lower part of the extension tube 31 is inserted into the feed pipe 101 of the injection molding machine 10. A handle 32 is fixedly connected to the outer wall of the test hopper 3. The side wall of the test hopper 3 has an observation window 33, through which the operator can see the condition of the material inside the test hopper 3.
[0038] The implementation principle of this application embodiment is as follows: When debugging the equipment, first move the production hopper 2 to the material changing port 13 and tighten the limiting screw 41 so that the limiting screw 41 is inserted into the first limiting hole 22, leaving the feeding port 12 empty. Then, insert the extension tube 31 of the debugging hopper 3 into the feeding port 12 and the extruder feed pipe 101, open the switch valve on the extension tube 31, and observe the material inside the debugging hopper 3 through the observation window 33 to facilitate the debugging of the injection molding machine 10. After debugging, take out the debugging hopper 3 and unlock the limiting screw 41. Move the production hopper 2 back to the feeding port 12 for production feeding, and make the limiting screw 41 inserted into the first limiting hole 22 to achieve rapid material changing.
[0039] Example 2:
[0040] The difference from Example 1 is that, referring to Figure 3 The slider 21 has a second limiting hole 23 on its side wall. The limiting member 4 includes a limiting rod 43 that slides through the side wall of the guide rail seat 1 and an elastic member disposed between the guide rail seat 1 and the limiting rod 43 to force the limiting rod 43 to slide closer to the slider 21. The end of the limiting rod 43 is slidably inserted into the second limiting hole 23. The limiting rod 43 is fixedly connected to a mounting plate 45 placed outside the guide rail seat 1. The elastic member is a spring 44 sleeved on the limiting rod 43. One end of the spring 44 is fixedly connected to the outer side wall of the guide rail seat 1, and the other end of the spring 44 is fixedly connected to the mounting plate 45. The elasticity of the spring 44 causes the limiting rod 43 to automatically insert into the second limiting hole 23 of the slider 21, thereby achieving effective limiting. When the slider 21 needs to be slid, a force is applied to the mounting plate to cause the limiting rod 43 to slide out of the second limiting hole 23, thereby unlocking the slider 21.
[0041] Example 3:
[0042] The difference from Example 1 is that, referring to Figure 4 , Figure 5 An extension plate 24 is fixedly connected to the side wall of the slider 21, and the extension plate 24 has a through hole 25 for the extension tube 31 to slide through. An mounting ring plate 34 is fixedly sleeved on the upper outer peripheral wall of the adjustment hopper 3. A guide tube 26 is fixedly connected to the upper end face of the extension plate 24, and a guide rod 35, which slides into the guide tube 26, is fixedly connected to the lower end face of the mounting ring plate 34. The extension plate 24 is provided with a lifting drive component for driving the adjustment hopper 3 to rise and fall. Specifically, the lifting drive component is a telescopic cylinder 5. In this embodiment, the telescopic cylinder 5 can be a pneumatic cylinder or an electric cylinder. The cylinder body of the telescopic cylinder 5 is fixedly connected to the upper end face of the extension plate 24, and the piston rod of the telescopic cylinder 5 is fixedly connected to the lower end face of the mounting ring plate 34.
[0043] The telescopic cylinder 5 can drive the adjustment hopper 3 to descend, so that the extension tube 31 can be accurately inserted into the feeding port 12 and the extruder feed pipe 101. The switch valve on the extension tube 31 is opened for adjustment. After the adjustment is completed, the switch valve is closed, and the telescopic cylinder 5 drives the adjustment hopper 3 to move up and reset, so that the lower end of the extension tube 31 is above the feeding port 12. Then the slider 21 can be moved so that the production hopper 2 moves to the feeding port 12 for production feeding.
[0044] 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. A quick-change material feeding hopper, characterized in that: The system includes a guide rail seat (1), a production hopper (2), and an adjustment hopper (3). The guide rail seat (1) is located above the feed pipe (101) of the injection molding machine (10). The guide rail seat (1) has a sliding cavity (11) that extends to the upper end face of the guide rail seat (1). The feed pipe of the production hopper (2) is fixedly fitted with a slider (21) that is slidably connected to the sliding cavity (11). The bottom wall of the sliding cavity (11) is provided with a feed port (12) and a material exchange port (13). The feeding port (12) and the material changing port (13) are distributed along the length of the sliding cavity (11). The feeding port (12) is connected to the feed pipe (101) of the injection molding machine (10). The capacity of the test hopper (3) is smaller than that of the production hopper (2). The lower end of the test hopper (3) is fixed with an extension pipe (31) for insertion into the feeding port (12). The extension pipe (31) is inserted into the feed pipe (101) of the injection molding machine (10). The side wall of the test hopper (3) has an observation window (33).
2. The quick-change feeding hopper according to claim 1, characterized in that: The guide rail seat (1) is provided with a limiting member (4) to restrict the sliding of the slider (21). The limiting member (4) is provided in two sets and is respectively provided on one side of the feeding port (12) and the changing port (13).
3. The quick-change feeding hopper according to claim 2, characterized in that: The limiting member (4) includes a limiting screw (41) threaded through the side wall of the guide rail seat (1), with one end of the limiting screw (41) abutting against the side wall of the slider (21).
4. The quick-change feed hopper according to claim 3, characterized in that: The slider (21) has a first limiting hole (22) on its side wall, and the end of the limiting screw (41) is inserted into the first limiting hole (22).
5. The quick-change feed hopper according to claim 3, characterized in that: The slider (21) has a second limiting hole (23) on its side wall. The limiting member (4) includes a limiting rod (43) that slides through the side wall of the guide rail seat (1) and an elastic member that is disposed between the guide rail seat (1) and the limiting rod (43) to force the limiting rod (43) to slide towards the slider (21). The end of the limiting rod (43) is slidably inserted into the second limiting hole (23).
6. The quick-change feed hopper according to claim 5, characterized in that: The limiting rod (43) is fixedly connected to an mounting plate (45) placed outside the guide rail seat (1). The elastic element is a spring (44) sleeved on the limiting rod (43). One end of the spring (44) is fixedly connected to the outer side wall of the guide rail seat (1), and the other end of the spring (44) is fixedly connected to the mounting plate (45).
7. The quick-change feeding hopper according to claim 1, characterized in that: The outer wall of the debugging hopper (3) is fixedly connected with a handle (32).
8. The quick-change feed hopper according to claim 1, characterized in that: The side wall of the slider (21) is fixedly connected to an extension plate (24). The extension plate (24) has a through hole (25) for the extension tube (31) to slide through. The extension plate (24) is provided with a lifting drive component for driving the adjustment hopper (3) to rise and fall.
9. A quick-change feed hopper according to claim 8, characterized in that: The upper outer peripheral wall of the debugging hopper (3) is fixedly connected to the mounting ring plate (34), and the lifting drive component is a telescopic cylinder (5). The cylinder body of the telescopic cylinder (5) is fixedly connected to the extension plate (24), and the piston rod of the telescopic cylinder (5) is fixedly connected to the mounting ring plate (34).