Injection molding apparatus with stable feeding

Abstract

The utility model discloses a kind of injection molding equipment of stable feeding, it is related to injection molding equipment field, including base body, the injection molding equipment of this stable feeding, when needing to screen raw materials, only need to open fixed drive motor, then the transmission belt installed in the output end of fixed drive motor will drive the rotation of upper end installed shaft, in turn drive the rotation of disc installed in the both ends of shaft, subsequently connecting rod installed on disc will follow disc and carry out circular motion, to make the vibration of first fixed shaft installed in the other end of connecting rod, because first fixed shaft is fixed on first screen, and first screen is equipped with support rod in front and back two ends, to make the vibration of first screen and second screen, when raw material enters along feed hopper, it will enter into different levels due to the screening of screen, and finally along with the slope on screen into feeding hopper, to ensure that raw material fine particle size is uniform, in turn guarantee subsequent plasticization stability.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, specifically to an injection molding equipment with stable material feeding. Background Technology

[0002] Injection molding equipment utilizes the heat-melting properties of thermoplastic and thermosetting plastics. By heating and melting them, the mixture is then poured into corresponding molds to produce plastic products that meet the needs of various industries. It is widely used in the automotive, medical, and electronics industries. As an indispensable piece of equipment in the plastics industry, injection molding equipment plays a significant role in improving production efficiency and ensuring product quality in today's society where plastic products are widely used.

[0003] In current injection molding equipment, raw materials can easily clog the feeding channel during the feeding process, which will affect the subsequent work process. In severe cases, it may cause the feeding equipment to jam, thereby damaging the injection molding equipment.

[0004] To overcome the above-mentioned defects, the prior art (Chinese patent announcement number: CN223266143U, announcement date: 2025-08-26) discloses an injection molding machine for automotive decorative parts, including an injection cylinder. A base is provided on the right side of the injection cylinder, and a motor is fixed on the upper surface of the base. An auger rod is rotatably connected inside the injection cylinder. The right end of the auger rod extends through to the outside of the injection cylinder and is fixedly connected to the output shaft of the motor. A first gear is fixed on the outer surface of the auger rod on the right side of the injection cylinder. A second gear is meshed with the top of the first gear. A feed cylinder is connected above the right side of the outer surface of the injection cylinder. A hopper is connected to the top of the feed cylinder. A piston is slidably connected to the upper part of the feed cylinder. The auger rod is driven to rotate by the motor. Under the action of gear transmission, the piston moves up and down, realizing the intermittent feeding of the feed cylinder. When the piston rises, the raw material particles can smoothly enter the feed cylinder, ensuring the continuity and controllability of the feeding.

[0005] Injection molding equipment plays an irreplaceable role in the production of plastic products. Excellent injection molding equipment can not only ensure product quality while improving production efficiency, but also meet diverse production needs. However, current injection molding equipment still has many shortcomings, such as: 1. Existing injection molding equipment cannot screen raw materials, which contain particles of different sizes. During the feeding process, stratification often occurs due to gravity differences, resulting in uneven particle size of the raw materials entering the barrel, which in turn affects the subsequent plasticization stability.

[0006] 2. Existing injection molding equipment cannot stably feed materials, which causes fluctuations in the quality of the raw materials entering the barrel. Since injection molding is extremely sensitive to the quality of the melt, this will affect the appearance of the finished product and cause deviations in dimensional accuracy, thus affecting the use of subsequent plastic products. Utility Model Content

[0007] The purpose of this invention is to provide a stable feeding injection molding equipment to solve the problems mentioned in the background art. Existing injection molding equipment cannot screen raw materials, and the raw materials contain particles of different sizes. During the feeding process, stratification often occurs due to gravity differences, resulting in uneven particle size of the raw materials entering the barrel, which in turn affects the subsequent plasticizing stability. Existing injection molding equipment cannot feed materials stably, which causes fluctuations in the quality of the raw materials entering the barrel. Injection molding is extremely sensitive to the quality of the melt, which will affect the appearance of the finished product and cause deviations in dimensional accuracy, thus affecting the use of the subsequent plastic products.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a stable feeding injection molding device, comprising a base, a feeding funnel mounted on the upper end of the base, and a meshing mechanism for rotating a fourth fixed shaft mounted on the lower end of the feeding funnel; the meshing mechanism includes a fixed drive motor, which is mounted on the inner side of the front end of the base, a second fixed shaft mounted on the output end of the fixed drive motor, and a transmission mechanism for vibrating a second screen mounted on the upper end of the second fixed shaft.

[0009] Furthermore, the transmission mechanism includes a transmission belt, with a disc mounted at the front end of the transmission belt, a connecting rod mounted at the front end of the disc, and a first fixed shaft mounted at the other end of the connecting rod.

[0010] Furthermore, a first screen is installed at the lower end of the first fixed shaft, and support rods are installed at both ends of the first screen. A second screen is installed at the other end of the support rods, and an output frame is installed at the lower end of the second screen.

[0011] Furthermore, a feeding funnel is installed at the right end of the output frame, and the first fixed shaft is fixed to the first screen. The feeding funnel is installed at the upper end of the base, and one end of the support rod is fixedly connected to the upper inner side of the base.

[0012] Furthermore, a first gear is installed at the lower end of the second fixed shaft, and the outer surface of the second fixed shaft is threaded. The first gear meshes with the thread on the second fixed shaft. A second gear is installed at the lower end of the first gear, and a third fixed shaft is installed at the middle end of the second gear.

[0013] Furthermore, an eccentric wheel is installed at the other end of the third fixed shaft, and a piston is installed at the upper end of the eccentric wheel. A pawl is installed on the outer surface of the third fixed shaft, and a ratchet is installed at the lower end of the pawl.

[0014] Furthermore, a fourth fixed shaft is installed at the middle end of the ratchet, and a transmission blade is installed on the outer surface of the fourth fixed shaft. The piston is installed at the lower outlet of the feeding funnel, and the first gear and the second gear mesh with each other.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When the injection molding equipment with stable feeding needs to screen the raw materials, it is only necessary to turn on the fixed drive motor. Then, the transmission belt installed at the output end of the fixed drive motor will drive the rotating shaft installed at the upper end to rotate, which in turn drives the discs installed at both ends of the rotating shaft to rotate. Subsequently, the connecting rod installed on the disc will follow the disc to perform circumferential motion, thereby causing the first fixed shaft installed at the other end of the connecting rod to vibrate. Since the first fixed shaft is fixed on the first screen, and the front and rear ends of the first screen are equipped with support rods, the first screen and the second screen will vibrate. At this time, after the raw material enters through the feed hopper, it will enter different levels due to the screening of the screen, and finally enter the feeding hopper together with the slope on the screen, thereby ensuring the uniform particle size of the raw material and thus ensuring the subsequent plasticization stability. Furthermore, when stable material feeding is required, simply turn on the fixed drive motor. The second fixed shaft mounted on the outer surface of the output end of the fixed drive motor will then rotate. Under the threaded drive on the outer surface of the second fixed shaft, the first gear mounted at the lower end will rotate. Then, the second gear meshing with the first gear will rotate synchronously. Subsequently, the third fixed shaft mounted in the middle of the second gear will rotate synchronously, thereby driving the eccentric wheel mounted on the other end of the third fixed shaft to rotate. This will then drive the piston mounted on the upper end of the eccentric wheel to move up and down periodically. Then, the pawl mounted on the outer surface of the third fixed shaft will rotate during its rotation, driving the ratchet at the lower end to rotate. This will cause the fourth fixed shaft mounted in the middle of the ratchet to rotate synchronously, thereby causing the transmission blade mounted on the outer surface of the fourth fixed shaft to rotate and transmit material. This design ensures stable material feeding in the injection molding equipment, effectively preventing fluctuations in the quality of the raw materials entering the barrel, thus avoiding problems such as affecting the appearance and dimensional deviations of the subsequent finished products. Furthermore, when using injection molding equipment, simply turn on the fixed drive motor, then feed the raw material into the feeding hopper. The screen vibrates under the action of the disc and connecting rod, thus separating the incoming raw material. The material then enters the feeding hopper along the inclined angle of the screen, ensuring thorough and uniform mixing of materials of different particle sizes. Simultaneously, the second fixed shaft installed at the output end of the fixed drive motor drives the gear at the lower end to rotate, causing the piston in the feeding hopper to move up and down periodically under the action of the eccentric wheel. Then, under the operation of the fourth rotating shaft and the conveying blades, the raw material entering the barrel is ensured to be of consistent quality. This design allows for stable feeding immediately after screening the raw material, making the overall mechanism more coherent and coordinated. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the substrate of this utility model; Figure 2 This is a three-dimensional structural diagram of the fixed drive motor of this utility model; Figure 3 This is a three-dimensional structural diagram of the transmission belt of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the feeding funnel of this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the ratchet of this utility model; Figure 6 This is a schematic diagram of the three-dimensional structure of the ratchet pawl of this utility model.

[0017] In the diagram: 1. Base; 2. Fixed drive motor; 3. Feed hopper; 4. Transmission belt; 5. Disc; 6. Connecting rod; 7. First fixed shaft; 8. First screen; 9. Support rod; 10. Second screen; 11. Output frame; 12. Feed hopper; 13. Second fixed shaft; 14. First gear; 15. Second gear; 16. Third fixed shaft; 17. Pawl; 18. Eccentric wheel; 19. Piston; 20. Ratchet; 21. Fourth fixed shaft; 22. Transmission blade. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figure 1 , Figure 2 and Figure 3This utility model provides the following technical solution: a stable feeding injection molding device, including a base 1, with a feeding funnel 3 installed at the upper end of the base 1, such as... Figure 1 As shown, the lower end of the feed hopper 3 is equipped with a meshing mechanism that rotates the fourth fixed shaft 21; the meshing mechanism includes a fixed drive motor 2, which is installed on the inner side of the front end of the base 1, and the output end of the fixed drive motor 2 is equipped with a second fixed shaft 13, and the upper end of the second fixed shaft 13 is equipped with a transmission mechanism that vibrates the second screen 10.

[0020] like Figure 1 , Figure 2 and Figure 3 The technical solution shown, in order to solve the problem that injection molding equipment cannot screen raw materials, discloses: a transmission mechanism including a transmission belt 4, with a disc 5 installed at the front end of the transmission belt 4, a connecting rod 6 installed at the front end of the disc 5, and a first fixed shaft 7 installed at the other end of the connecting rod 6, such as... Figure 2 As shown, a first screen 8 is installed at the lower end of the first fixed shaft 7, and support rods 9 are installed at both ends of the first screen 8. A second screen 10 is installed at the other end of the support rods 9, and an output frame 11 is installed at the lower end of the second screen 10. A feeding funnel 12 is installed at the right end of the output frame 11. The first fixed shaft 7 is fixed on the first screen 8, the feeding funnel 3 is installed at the upper end of the base 1, and one end of the support rod 9 is fixedly connected to the upper inner side of the base 1.

[0021] When raw materials need to be screened, simply turn on the fixed drive motor 2. The transmission belt 4 installed at the output end of the fixed drive motor 2 will then drive the rotating shaft mounted at the upper end to rotate, thereby causing the discs 5 installed at both ends of the rotating shaft to rotate. Figure 3 As shown, the connecting rod 6 installed on the disc 5 will then follow the disc 5 in a circular motion, thereby causing the first fixed shaft 7 installed on the other end of the connecting rod 6 to vibrate. Since the first fixed shaft 7 is fixed on the first screen 8, and support rods 9 are installed at both ends of the first screen 8, the first screen 8 and the second screen 10 will vibrate. When the raw material enters through the feed hopper 3, it will be screened into different levels by the vibration of the first screen 8 and the second screen 10, and finally enter the feeding hopper 12 along the slope on the first screen 8, the second screen 10 and the output frame 11, thereby ensuring that the raw material particle size is uniform.

[0022] Example 2: Figure 4 , Figure 5 and Figure 6The technical solution shown, in order to solve the problem of unstable material feeding in injection molding equipment, discloses that: a first gear 14 is installed at the lower end of the second fixed shaft 13, and the outer surface of the second fixed shaft 13 is threaded, and the first gear 14 meshes with the thread on the second fixed shaft 13; a second gear 15 is installed at the lower end of the first gear 14, and a third fixed shaft 16 is installed at the middle end of the second gear 15. Figure 4 As shown, an eccentric wheel 18 is installed at the other end of the third fixed shaft 16, and a piston 19 is installed at the upper end of the eccentric wheel 18. A pawl 17 is installed on the outer surface of the third fixed shaft 16, and a ratchet 20 is installed at the lower end of the pawl 17. A fourth fixed shaft 21 is installed at the middle end of the ratchet 20, and a transmission blade 22 is installed on the outer surface of the fourth fixed shaft 21. The piston 19 is installed at the lower outlet of the feeding funnel 12, and the first gear 14 and the second gear 15 mesh with each other.

[0023] When stable feeding is required, simply turn on the fixed drive motor 2, and then the second fixed shaft 13, which is mounted on the outer surface of the output end of the fixed drive motor 2, will rotate. Figure 5 As shown, the threaded drive on the outer surface of the second fixed shaft 13 drives the first gear 14 mounted at the lower end to rotate. Then, the second gear 15 meshing with the first gear 14 rotates synchronously. Subsequently, the third fixed shaft 16 mounted at the middle of the second gear 15 rotates synchronously, thereby driving the eccentric wheel 18 mounted at the other end of the third fixed shaft 16 to rotate. This, in turn, drives the piston 19 mounted at the upper end of the eccentric wheel 18 to move up and down periodically. Then, the pawl 17 mounted on the outer surface of the third fixed shaft 16 drives the ratchet 20 at the lower end to rotate during rotation, thereby causing the fourth fixed shaft 21 mounted at the middle end of the ratchet 20 to rotate synchronously. This, in turn, causes the transmission blade 22 mounted on the outer surface of the fourth fixed shaft 21 to rotate and transmit.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An injection molding device for stable material feeding, comprising a substrate (1), wherein a feed funnel (3) is installed at the upper end of the substrate (1), characterized in that: The lower end of the feed hopper (3) is equipped with a meshing mechanism that rotates the fourth fixed shaft (21); The meshing mechanism includes a fixed drive motor (2), which is installed on the inner side of the front end of the base (1). The output end of the fixed drive motor (2) is equipped with a second fixed shaft (13), and the upper end of the second fixed shaft (13) is equipped with a transmission mechanism for vibrating the second screen (10).

2. The injection molding equipment with stable material feeding according to claim 1, characterized in that: The transmission mechanism includes a transmission belt (4), and a disc (5) is installed at the front end of the transmission belt (4), a connecting rod (6) is installed at the front end of the disc (5), and a first fixed shaft (7) is installed at the other end of the connecting rod (6).

3. The injection molding equipment with stable material feeding according to claim 2, characterized in that: The first fixed shaft (7) is equipped with a first screen (8) at its lower end, and support rods (9) are installed at both ends of the first screen (8). A second screen (10) is installed at the other end of the support rods (9), and an output frame (11) is installed at the lower end of the second screen (10).

4. The injection molding equipment with stable material feeding according to claim 3, characterized in that: The output frame (11) is equipped with a feeding funnel (12) on the right end, and the first fixed shaft (7) is fixed on the first screen (8). The feeding funnel (3) is installed on the upper end of the base (1), and one end of the support rod (9) is fixedly connected to the upper inner side of the base (1).

5. The injection molding equipment with stable material feeding according to claim 1, characterized in that: The lower end of the second fixed shaft (13) is equipped with a first gear (14), and the outer surface of the second fixed shaft (13) is provided with a thread. The first gear (14) meshes with the thread on the second fixed shaft (13). The lower end of the first gear (14) is equipped with a second gear (15), and the middle end of the second gear (15) is equipped with a third fixed shaft (16).

6. The injection molding equipment with stable material feeding according to claim 5, characterized in that: An eccentric wheel (18) is installed at the other end of the third fixed shaft (16), and a piston (19) is installed at the upper end of the eccentric wheel (18). A pawl (17) is installed on the outer surface of the third fixed shaft (16), and a ratchet (20) is installed at the lower end of the pawl (17).

7. The injection molding equipment with stable material feeding according to claim 6, characterized in that: The ratchet (20) has a fourth fixed shaft (21) installed at the middle end, and a transmission blade (22) is installed on the outer surface of the fourth fixed shaft (21). The piston (19) is installed at the lower outlet of the feeding funnel (12), and the first gear (14) and the second gear (15) mesh with each other.

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