Rapid discharging equipment of injection molding machine

By combining the material guide slide, the support platform, and the air cooler, the problem of easy damage to plastic products during injection molding is solved, achieving the effect of rapid material feeding and product protection.

CN224130312UActive Publication Date: 2026-04-17NINGBO HAISHUO PLASTIC MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HAISHUO PLASTIC MACHINERY CO LTD
Filing Date
2025-04-30
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing injection molding machines are prone to damage to plastic products due to the impact of gravity during material feeding, and it is difficult to ensure both feeding speed and product quality.

Method used

The system employs a combination of a guide slide, a support platform, a cooler, and a cylinder system. The lifting cylinder drives the support platform to receive the injection plastic, the cooler provides further cooling, and the pushing cylinder causes the injection plastic to roll down into the slide, achieving rapid material unloading and protecting the product.

Benefits of technology

This technology ensures that the injection molded products are protected from damage caused by gravity impacts while maintaining the material feeding speed, thereby improving product quality.

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Abstract

The utility model provides rapid blanking equipment of an injection molding machine, which comprises a material guide slide way, the material guide slide way is mounted in a support frame through a support arm, a lifting cylinder is mounted in the middle of the bottom end of a bottom plate, and a support seat is arranged on one side of the middle of a side bracket; according to the utility model, the material guide slideway is arranged in the support frame, and the top of the support frame is connected with the bearing bedplate through the guide rod and the side bracket, so that during blanking, the bearing bedplate is driven by the lifting cylinder to ascend and is directly positioned at the bottom of the blanking port of the injection molding machine, and therefore, after being ejected out from the inside of a cavity of the injection molding machine, the injection molding material is discharged. The injection molding material can directly fall into the bearing table plate, the area where the injection molding material is not completely cooled can be cooled again through the air cooler, the bearing table plate descends to the lower position, the bearing table plate can be pulled through the material pushing air cylinder, the bearing table plate is made to incline, and then the injection molding material can directly fall onto the material guiding sliding way and is discharged through the material guiding sliding way. Therefore, quick blanking can be realized, and meanwhile, the injection molding material is protected.
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Description

Technical Field

[0001] This utility model belongs to the field of injection molding machine technology and relates to rapid material feeding equipment for injection molding machines. Background Technology

[0002] The working principle of an injection molding machine is similar to that of a syringe. It uses the thrust of a screw to inject pre-plasticized molten plastic into a closed mold cavity. After solidification and shaping, the product is obtained. Injection molding is a cyclical process. Each cycle mainly includes: quantitative feeding—melting and plasticizing—pressure injection—mold filling and cooling—mold opening and part removal. After the plastic part is removed, the mold is closed again to start the next cycle. Injection molding machine operation includes three aspects: control keyboard operation, electrical control system operation, and hydraulic system operation. These include selecting injection process actions, feeding actions, injection pressure, injection speed, and ejection type, monitoring the temperature of each section of the barrel, and adjusting the injection pressure and back pressure.

[0003] After injection molding is completed, in order to ensure the material discharge speed, the material is directly ejected by the ejector device and falls directly into the material box. Although this material discharge method can ensure fast material discharge, the plastic product that has just cooled down has not been completely shaped. Due to the impact of gravity falling, the plastic product can be damaged. It is necessary to ensure the material discharge speed while also ensuring the quality of the injection molding. Summary of the Invention

[0004] The purpose of this invention is to provide a rapid material feeding device for injection molding machines to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] The rapid material unloading device for injection molding machines includes a guide slide, a support frame, a support platform, and a cooling fan. Multiple support arms are arranged on the inner sides of the support frame, and the guide slide is installed inside the support frame via these support arms. Base plates are located on both sides of the inner side of the support frame. A lifting cylinder is installed at the center of the bottom of the base plate. The output end of the lifting cylinder is connected to a side bracket. A support seat is located on one side of the middle of the side bracket. A pin is movably installed inside the support seat, and a connecting seat is movably installed inside the support seat via the pin. One end of the connecting seat is connected to the support platform. The lifting cylinder is a commercially available device known to those skilled in the art; we are simply using it here without making any structural or functional improvements, and therefore will not elaborate further.

[0007] In the aforementioned rapid feeding device for injection molding machines, guide rods are movably sleeved at both ends of the base plate, and the top end of the guide rod is connected to the bottom end of the side bracket, while the bottom end of the guide rod is connected to a limit block.

[0008] In the aforementioned rapid feeding device for injection molding machines, a sponge pad is provided inside the support platform, and the sponge pad has multiple air holes inside.

[0009] In the aforementioned rapid feeding device for injection molding machines, a cooling fan is installed at the end of the support platform, and the output end of the cooling fan is connected to an air vent.

[0010] In the aforementioned rapid material feeding device for injection molding machines, a cylinder seat is provided at the bottom of the side support, and a pusher cylinder is movably installed inside the cylinder seat. The output end of the pusher cylinder is connected to a push rod, and one end of the push rod is connected to the bottom side of the support plate.

[0011] Compared with existing technologies, the advantages of this utility model injection molding machine rapid feeding device are:

[0012] This application incorporates a material guide slide inside the support frame. Simultaneously, a support platform is connected to the top of the support frame via guide rods and side supports. During unloading, a lifting cylinder raises the support platform, placing it directly at the bottom of the injection molding machine's unloading port. This allows the plastic material ejected from the injection molding machine cavity to fall directly into the support platform. Furthermore, a cooling fan can re-cool any areas where the plastic material hasn't fully cooled. When the support platform descends to its lowest point, a pushing cylinder pulls it, causing it to tilt and allowing the plastic material to roll directly onto the material guide slide for discharge. This achieves rapid unloading while simultaneously protecting the plastic material. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the rapid feeding device for injection molding machines according to this utility model.

[0014] Figure 2 This is a schematic diagram of the support platform structure of the injection molding machine rapid feeding device of this utility model.

[0015] Figure 3 This is a schematic diagram of the side support structure of the rapid feeding device for injection molding machines according to this utility model.

[0016] In the diagram, 1. Material guide slide; 2. Support frame; 3. Bearing platform; 4. Side bracket; 5. Base plate; 6. Lifting cylinder; 7. Sponge pad; 8. Connecting seat; 9. Air hole; 10. Air cooler; 11. Support seat; 12. Pin; 13. Cylinder seat; 14. Pushing cylinder; 15. Guide rod. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] The injection molding machine rapid unloading device includes a guide slide 1, a support frame 2, a support platform 3, and a cooling fan 10. Multiple support arms are provided on the inner sides of the support frame 2, and the guide slide 1 is installed inside the support frame 2 via these support arms. Base plates 5 are located on both sides of the inner side of the support frame 2. A lifting cylinder 6 is installed at the center of the bottom of the base plate 5. The output end of the lifting cylinder 6 is connected to a side bracket 4. A support seat 11 is located on one side of the middle of the side bracket 4. A pin 12 is movably installed inside the support seat 11, and a connecting seat 8 is movably installed inside the support seat 11 via the pin 12. One end of the connecting seat 8 is connected to the support platform 3. The lifting cylinder 6 is a commercially available device known to those skilled in the art; we are simply using it here without making any structural or functional improvements, and therefore will not elaborate further.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, the rapid feeding device for injection molding machines of this utility model has guide rods 15 movably sleeved at both ends of the base plate 5, and the top end of the guide rods 15 is connected to the bottom end of the side bracket 4, and the bottom end of the guide rods 15 is connected to a limit block.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, the rapid feeding device for injection molding machines of this utility model has a sponge pad 7 inside the support plate 3, and the sponge pad 7 has multiple air holes 9 inside.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the rapid feeding device for injection molding machines of this utility model has a cooler 10 installed at the end of the support platen 3. The output end of the cooler 10 is connected to the air hole 9. The cooler 10 mainly cools the injection plastic again. The cooler 10 is a well-known device in the art that can be purchased directly from the market. Here we are just using it without making any structural or functional improvements. We will not go into details here.

[0022] like Figure 1 , Figure 2 , Figure 3As shown, the rapid unloading device for injection molding machines of this utility model has a cylinder seat 13 at the bottom of the side support 4. A pusher cylinder 14 is movably installed inside the cylinder seat 13. The output end of the pusher cylinder 14 is connected to a push rod, and one end of the push rod is connected to the bottom side of the support plate 3. The pusher cylinder 14 mainly pushes the support plate 3 to open and close. The pusher cylinder 14 is a well-known device in the art that can be directly purchased from the market. Here we are just using it without making any structural or functional improvements. We will not go into details here.

[0023] This utility model relates to a rapid material unloading device for injection molding machines. The device structure of this application is installed at the bottom of the injection molding machine. During unloading, the support platen 3 is first raised to a high position and close to the mold. After the plastic is molded, it is ejected from the cavity of the injection molding machine and can fall directly into the support platen 3. The area where the plastic has not been completely cooled can also be cooled again by the cooling fan 10. After the support platen 3 receives the material, it is lowered to a low position. The support platen 3 can be pulled by the pusher cylinder 14 to open the two support plates 3, so that the plastic can roll directly onto the guide slide 1 and be discharged through the guide slide 1. This achieves rapid unloading and also protects the plastic.

[0024] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A rapid discharging equipment of injection molding machine, comprising a material guiding slide (1), a supporting frame (2), a bearing platform (3) and a cold air machine (10), characterized in that, Multiple support arms are provided on the inner side of the support frame (2), and a guide slide (1) is installed inside the support frame (2) through the support arms. A base plate (5) is provided on both sides inside the support frame (2). A lifting cylinder (6) is installed in the middle of the bottom end of the base plate (5). A side bracket (4) is connected to the output end of the lifting cylinder (6). A support seat (11) is provided on one side of the middle of the side bracket (4). A pin (12) is movably provided inside the support seat (11). A connecting seat (8) is movably installed inside the support seat (11) through the pin (12), and one end of the connecting seat (8) is connected to a bearing plate (3).

2. The injection molding machine quick dump apparatus of claim 1, wherein, Guide rods (15) are movably sleeved at both ends of the base plate (5), and the top end of the guide rods (15) is connected to the bottom end of the side bracket (4), and the bottom end of the guide rods (15) is connected to a limit block.

3. The injection molding machine quick stripper apparatus of claim 1 wherein, The support platform (3) is provided with a sponge pad (7) inside, and the sponge pad (7) has multiple air holes (9) inside.

4. The injection molding machine quick stripper apparatus of claim 3 wherein, A cooler (10) is installed at the end of the support platform (3), and the output end of the cooler (10) is connected to the air hole (9).

5. The injection molding machine quick dump apparatus of claim 1, wherein, The bottom of the side support (4) is provided with a cylinder seat (13), and a pusher cylinder (14) is movably installed inside the cylinder seat (13). The output end of the pusher cylinder (14) is connected to a push rod, and one end of the push rod is connected to the bottom side of the support plate (3).