A feed mechanism for an injection molding machine

Abstract

The utility model discloses a kind of feeding mechanisms of injection molding machine, the utility model relates to injection molding machine technical field.The feeding mechanism of this injection molding machine, it includes: feed tank, the front cabinet door of feed tank, handle is fixedly installed on cabinet door;Object plate, object plate is installed in feed tank, for placing material bag, multiple through slots for material circulation are set up on object plate.Cutting knife, cutting knife is slidably installed in feed tank, cutting knife is below object plate, for breaking material bag;Material conveying component, material conveying component is obliquely installed below feed tank, for conveying material to injection molding machine, feed tank is communicated with material conveying component;Avoid the risk that operator and cutting knife and material directly contact, improve the operation safety, simultaneously without operator manually dumping the material in material bag, reduce dust phenomenon, protect the cleanliness of production environment, reduce the potential threat to operator health.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to a feeding mechanism for an injection molding machine. Background Technology

[0002] Injection molding machine, also known as injection molding machine, is a main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting plastics. Its working principle is similar to that of a syringe infusion. With the help of the screw, the plasticized molten plastic is injected into the closed injection mold cavity at high pressure and high speed. After cooling and solidification, a plastic product with a shape almost identical to that of the mold cavity is obtained.

[0003] CN218286503U discloses a feeding mechanism for an injection molding machine, including a feeding cylinder. A feed funnel is fixedly connected to the middle of the top of the feeding cylinder, and a discharge funnel is fixedly connected to one end of the bottom of the feeding cylinder. The feed funnel, feeding cylinder, and discharge funnel are sequentially connected. A stabilizing frame is fixedly connected to one end of the feeding cylinder, and a pushing mechanism is slidably connected inside the feeding cylinder. The pushing mechanism includes an assembly frame. By rotating a motor to drive a crankshaft to rotate, residual material adhering to the inner wall of the feeding cylinder is removed by friction from the outer wall of the piston assembly and pushed back to the discharge funnel, thus achieving simple mechanical processing of the inner wall of the feeding cylinder.

[0004] The above technical solution achieves simple treatment of the inner wall of the feed cylinder by matching the outer wall of the piston assembly with the inner wall of the feed cylinder; however, during the feeding process, the operator directly pours the material into the feeding mechanism through the feed funnel. However, since the material powder is light and the particles are small, dust will be generated when pouring the raw materials. The dust not only affects the production environment, but is also easily inhaled by the operator, thus affecting the operator's health. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a feeding mechanism for an injection molding machine, which solves the dust problem caused by dumping powder raw materials during the feeding process of the injection molding machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding mechanism for an injection molding machine, comprising:

[0007] The feeding box has a cabinet door hinged to its front end for feeding and unloading materials, and a handle is fixedly installed on the cabinet door.

[0008] A carrying plate is installed inside the feed box to hold material bags, and the carrying plate has multiple slots for material flow.

[0009] A cutting blade is slidably mounted inside the feed hopper and located below the carrying plate; it is used to cut open the material bag.

[0010] A material conveying assembly is installed at an angle below the feed box for conveying materials into the injection molding machine. The feed box is connected to the material conveying assembly.

[0011] Preferably, multiple cutting blades are provided in the feed box, and all of the multiple cutting blades are slidably installed in the feed box via a drive assembly.

[0012] Preferably, the driving assembly includes a slider located below the carrier plate, the length direction of the slider being perpendicular to the length direction of the through slot, a plurality of cutting blades being fixedly mounted on the top of the slider, two lead screws being rotatably mounted inside the feed box, the two ends of the slider being threadedly connected to the two lead screws respectively, and two drive motors being fixedly mounted on the outer wall of the feed box, the output ends of the two drive motors being fixedly connected to the two lead screws respectively.

[0013] Preferably, four mounting components are fixedly installed on the inner wall of the feed box, and each of the four mounting components has a sliding rod slidably installed on it. The top of each of the four sliding rods is fixedly connected to the carrying plate, and a spring is fixedly installed between the carrying plate and the four mounting components. The four sliding rods are respectively located inside the four springs.

[0014] Preferably, one end of a pull rope is fixedly installed on the inner top of the feed box, and the other end of the pull rope is fixedly installed with a limiting clamp to prevent the material bag from falling into the feeding assembly.

[0015] Preferably, the material conveying assembly includes a material conveying bin, which is installed at an incline below the feed box. A rotating shaft is rotatably installed inside the material conveying bin, and a spiral blade is fixedly installed on the rotating shaft. A material conveying motor is fixedly installed at the upper end of the material conveying bin, and the output end of the material conveying motor passes through the material conveying bin and is fixedly connected to the rotating shaft.

[0016] Preferably, a feed inlet is provided on the lower side of the top of the feeding hopper, and a connector is fixedly installed at one end of the feed inlet. The other end of the connector is fixedly connected to the feeding box. A discharge outlet is provided on the upper side of the bottom of the feeding hopper, and a discharge hopper is fixedly installed at one end of the discharge outlet. The other end of the discharge hopper is fixedly connected to the injection molding machine.

[0017] Beneficial effects

[0018] This utility model provides a feeding mechanism for an injection molding machine. Compared with the prior art, it has the following advantages:

[0019] 1. The feeding mechanism of this injection molding machine realizes automatic cutting and unloading of material bags through the carrier plate and the cutting blade, thereby avoiding the risk of operators coming into direct contact with the cutting blade and materials, improving operational safety. At the same time, it eliminates the need for operators to manually empty the materials in the material bags, reducing dust, protecting the cleanliness of the production environment, and reducing potential threats to the health of operators.

[0020] 2. The feeding mechanism of this injection molding machine, through the material conveying components, effectively prevents material leakage during the conveying process and reduces dust. At the same time, the device realizes automatic cutting, dropping and conveying of materials. Operators only need to put the material bag into the feeding box on the ground to complete the feeding process, without having to manually climb the injection molding machine, which greatly improves the safety of operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0024] Figure 4 This is a cross-sectional structural diagram of the feed box in this utility model.

[0025] In the diagram: 1. Feed box; 2. Cabinet door; 3. Handle; 4. Carrier plate; 5. Through slot; 6. Cutting blade; 7. Feeding assembly; 71. Feeding bin; 72. Rotating shaft; 73. Spiral blade; 74. Feeding motor; 8. Drive assembly; 81. Slider; 82. Lead screw; 83. Drive motor; 9. Feed inlet; 10. Connector; 11. Discharge outlet; 12. Discharge hopper; 13. Mounting component; 14. Slide rod; 15. Spring; 16. Pull rope; 17. Limit clamp. Detailed Implementation

[0026] 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.

[0027] See Figures 1-4 This utility model provides the following two technical solutions:

[0028] First embodiment: A feeding mechanism for an injection molding machine, comprising: a feeding box 1, a cabinet door 2 for feeding and unloading materials is hinged to the front end of the feeding box 1, and a handle 3 is fixedly installed on the cabinet door 2;

[0029] The material carrier 4 is installed inside the feed box 1 and is used to place material bags. The material carrier 4 has multiple channels 5 for material flow.

[0030] The cutting blade 6 is slidably installed inside the feed box 1 and is located below the carrying plate 4. It is used to cut open the material bag.

[0031] The material conveying assembly 7 is installed at an angle below the feed box 1 and is used to convey materials into the injection molding machine. The feed box 1 is connected to the material conveying assembly 7.

[0032] Multiple cutting blades 6 are provided in the feed box 1. The multiple cutting blades 6 are slidably installed in the feed box 1 through the drive assembly 8. The drive assembly 8 includes a slider 81, which is located below the carrier plate 4. The length direction of the slider 81 is perpendicular to the length direction of the through groove 5. The multiple cutting blades 6 are fixedly installed on the top of the slider 81. Two lead screws 82 are rotatably installed inside the feed box 1. The two ends of the slider 81 are respectively threaded to the two lead screws 82. Two drive motors 83 are fixedly installed on the outer wall of the feed box 1. The output ends of the two drive motors 83 are respectively fixedly connected to the two lead screws 82.

[0033] Four mounting parts 13 are fixedly installed on the inner wall of the feeding box 1. Each of the four mounting parts 13 has a sliding rod 14 slidably installed on it. The top of each of the four sliding rods 14 is fixedly connected to the carrying plate 4. A spring 15 is fixedly installed between the carrying plate 4 and the four mounting parts 13. The four sliding rods 14 are located inside the four springs 15 respectively. One end of a pull rope 16 is fixedly installed on the inner top of the feeding box 1. The other end of the pull rope 16 is fixedly installed with a limiting clamp 17 to prevent the material bag from falling into the conveying assembly 7.

[0034] The material bag is placed on the loading plate 4 inside the feed box 1 by opening cabinet door 2. Then, cabinet door 2 is closed. The weight of the material bag compresses spring 15, and simultaneously, loading plate 4 slides downwards via slide rod 14, causing cutting blade 6 to pass through slot 5 and contact the bottom of the material bag. By starting drive motor 83, slider 81 slides along the axial direction of lead screw 82, thereby driving multiple cutting blades 6 to slide along slot 5, cutting the material bag and allowing the material inside to flow through slot 5 into conveying assembly 7. Conveying assembly 7 then transports the material to the injection molding machine. After the material in the material bag has flowed out, the spring 15 returns to its original position, so that the top of the cutting blade 6 is located in the through groove 5, thereby reducing the possibility of the operator being cut by the cutting blade 6; the pull rope 16 and the limit clamp 17 are set to prevent the material bag from accidentally falling into the conveying assembly 7 during or after cutting; in the above operation, the operator does not need to manually pour the material in the material bag into the conveying assembly 7, and the entire material discharge process is completed in the feeding box 1, which significantly reduces dust, protects the cleanliness of the production environment, reduces the potential threat to the health of the operator, and also meets environmental protection requirements.

[0035] The second embodiment differs from the first embodiment in that the material conveying assembly 7 includes a material conveying bin 71, which is installed at an incline below the feed box 1. A rotating shaft 72 is rotatably installed inside the material conveying bin 71, and a spiral blade 73 is fixedly installed on the rotating shaft 72. A material conveying motor 74 is fixedly installed at the upper end of the material conveying bin 71, and the output end of the material conveying motor 74 passes through the material conveying bin 71 and is fixedly connected to the rotating shaft 72.

[0036] A feed inlet 9 is provided on the lower side of the top of the feeding bin 71. One end of a connector 10 is fixedly installed at the feed inlet 9, and the other end of the connector 10 is fixedly connected to the feeding box 1. A discharge outlet 11 is provided on the upper side of the bottom of the feeding bin 71. One end of a discharge hopper 12 is fixedly installed at the discharge outlet 11, and the other end of the discharge hopper 12 is fixedly connected to the injection molding machine.

[0037] Material enters the conveying bin 71 from the feed box 1 through the feed inlet 9. The conveying motor 74 starts, driving the rotating shaft 72 to rotate, which in turn drives the spiral blades 73 to rotate. During the rotation, the spiral blades 73 push the material from the feed end to the discharge end of the conveying bin 71. The material enters the discharge hopper 12 through the discharge outlet 11 and finally flows into the injection molding machine. The closed design of the conveying bin 71 effectively prevents material leakage during the conveying process and reduces dust. At the same time, the device realizes automatic cutting, dropping and conveying of materials. The operator only needs to put the material bag into the feed box 1 on the ground to complete the feeding process. There is no need to manually climb the injection molding machine, which greatly improves the safety of operation.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] In use, the operator opens the cabinet door 2 at the front of the feed box 1 through handle 3, places the prepared material bag on the carrying plate 4 inside the feed box 1, and gently closes the cabinet door 2, ensuring that the cabinet door 2 is tightly closed to prevent material leakage during cutting and conveying. The weight of the material bag compresses the spring 15 on the carrying plate 4, and the carrying plate 4 slides downward through the slide rod 14 until the cutting blade 6 passes through the through groove 5 and contacts the bottom of the material bag. The drive motor 83 is then started, and the output end of the drive motor 83 drives the lead screw 82 to rotate, thereby controlling the slide rod 82. Block 81 slides along the axial direction of lead screw 82. The sliding of block 81 drives multiple cutting blades 6 to slide along through groove 5. The cutting blades 6 cut the material bag, and the material in the material bag flows into the conveying assembly 7 through through groove 5. The conveying motor 74 is started. The output end of the conveying motor 74 drives the rotating shaft 72 to rotate, which in turn drives the spiral blade 73 to rotate. During the rotation, the spiral blade 73 pushes the material from the feed end of the conveying bin 71 to the discharge end. The material enters the discharge hopper 12 through the discharge port 11 and finally flows into the injection molding machine.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for an injection molding machine, characterized in that, include: The feeding box has a cabinet door hinged to its front end for feeding and unloading materials, and a handle is fixedly installed on the cabinet door. A carrying plate is installed inside the feed box to hold material bags. The carrying plate has multiple slots for material flow. A cutting blade is slidably mounted inside the feed hopper and located below the carrying plate; it is used to cut open the material bag. A material conveying assembly is installed at an angle below the feed box for conveying materials into the injection molding machine. The feed box is connected to the material conveying assembly.

2. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: Multiple cutting blades are provided inside the feed box, and all of the multiple cutting blades are slidably mounted inside the feed box via a drive assembly.

3. The feeding mechanism of an injection molding machine according to claim 2, characterized in that: The driving assembly includes a slider located below the carrier plate, the length direction of the slider being perpendicular to the length direction of the through slot, a plurality of cutting blades being fixedly mounted on the top of the slider, two lead screws being rotatably mounted inside the feed box, the two ends of the slider being threadedly connected to the two lead screws respectively, and two drive motors being fixedly mounted on the outer wall of the feed box, the output ends of the two drive motors being fixedly connected to the two lead screws respectively.

4. The feeding mechanism of an injection molding machine according to claim 3, characterized in that: Four mounting components are fixedly installed on the inner wall of the feed box. Each of the four mounting components has a sliding rod slidably mounted on it. The top of each of the four sliding rods is fixedly connected to the carrying plate. A spring is fixedly installed between the carrying plate and the four mounting components. Each of the four sliding rods is located inside one of the four springs.

5. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: One end of a pull rope is fixedly installed on the inner top of the feed box, and the other end of the pull rope is fixedly installed with a limiting clamp to prevent the material bag from falling into the feeding assembly.

6. The feeding mechanism of an injection molding machine according to claim 1, characterized in that: The material conveying assembly includes a material conveying bin, which is installed at an incline below the feed box. A rotating shaft is rotatably installed inside the material conveying bin, and a spiral blade is fixedly installed on the rotating shaft. A material conveying motor is fixedly installed at the upper end of the material conveying bin, and the output end of the material conveying motor passes through the material conveying bin and is fixedly connected to the rotating shaft.

7. The feeding mechanism of an injection molding machine according to claim 6, characterized in that: The material conveying hopper has a feed inlet on the lower side of the top, and a connector is fixedly installed at one end of the feed inlet. The other end of the connector is fixedly connected to the feed box. The material conveying hopper has a discharge outlet on the upper side of the bottom, and a discharge hopper is fixedly installed at one end of the discharge outlet. The other end of the discharge hopper is fixedly connected to the injection molding machine.

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