Resin injection molding machine anti-blocking charging barrel with spiral heat conduction grooves

Abstract

The utility model relates to the technical field of injection molding machine equipment, and discloses a resin injection molding machine anti-blocking charging barrel with a spiral heat conduction groove, which comprises a rack and a heating unit, the outer wall of the rack is fixedly provided with a machine barrel, the inner part of the outer wall of the machine barrel is rotatably connected with a screw rod, and the heating unit is arranged at the end part of the machine barrel. A material pouring groove is formed in the outer wall of the side, away from the heating unit, of the machine barrel, a mounting base is fixedly connected to the outer wall of the material pouring groove, a mounting plate is arranged on the outer wall of the top of the mounting base, a material pouring frame is fixedly connected to the upper surface of the mounting plate, and a buckle assembly is arranged between the mounting plate and the mounting base. And the uniform heating of the resin raw material in the machine barrel is ensured, so that a stable and uniform heating environment is formed, the molding quality of an injection molding product is more stable, the rapid carbonization reaction of a local overheating area is avoided, and the risk of blockage caused by resin carbonization is greatly reduced.

Description

Technical Field

[0001] This utility model application relates to the field of injection molding machine equipment technology, and in particular to an anti-clogging barrel for a resin injection molding machine with a spiral heat-conducting groove. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

[0003] Regarding the aforementioned technologies, the inventors believe that most existing injection molding machine barrels employ simple external surround heating or localized point heating modes, resulting in extremely unreasonable heat transfer paths and distribution. This makes it difficult to evenly cover every corner of the barrel, easily leading to severe localized overheating. In these overheated areas, carbonization reactions occur rapidly. Carbonized resin not only loses its original good plasticity and fails to meet the process requirements of injection molding, but also easily causes barrel blockage. Furthermore, the connection method of the feed barrel requires maintenance personnel to spend a lot of time and effort, carefully disassembling numerous connecting parts with various tools. This process greatly increases the workload of maintenance personnel. Therefore, an anti-clogging barrel for resin injection molding machines with spiral heat-conducting grooves is proposed to solve the above problems.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the aforementioned issues, this application provides a resin injection molding machine anti-clogging barrel with a spiral heat-conducting groove.

[0006] The present utility model application provides a resin injection molding machine anti-clogging barrel with a spiral heat-conducting groove, which adopts the following technical solution:

[0007] A resin injection molding machine anti-clogging barrel with a spiral heat-conducting groove includes a frame and a heating unit. The barrel is fixedly installed on the outer wall of the frame, and a screw is rotatably connected to the inner side of the outer wall of the barrel. The heating unit is installed at the end of the barrel. A material pouring groove is opened on the outer wall of the barrel on the side away from the heating unit. A mounting base is fixedly connected to the outer wall of the material pouring groove. A mounting plate is provided on the top outer wall of the mounting base. A material pouring frame is fixedly connected to the upper surface of the mounting plate. A snap-fit ​​assembly is provided between the mounting plate and the mounting base.

[0008] The heating unit includes a heating assembly, and the inner cavity of the heating assembly has a heating groove. An electric heating wire assembly is fixedly connected to the outer wall of the heating groove, and the electric heating wire assembly is spirally fitted to the outer wall of the barrel. Two connecting flange assemblies are fixedly installed in the inner cavity of the screw, and multiple electric heating rods are arranged between the two connecting flange assemblies. The multiple electric heating rods correspond to the electric heating wire assembly.

[0009] Preferably, the buckle assembly includes two snap-in slots, which are symmetrically distributed on both sides of the mounting base. The outer walls of both sides of the mounting plate are symmetrically provided with inner grooves, and the outer walls of the inner grooves are slidably connected with circular sleeves. A spring is provided between the circular sleeve and the inner groove, and the two ends of the spring are fixedly connected to the circular sleeve and the inner groove, respectively. A pressing and rotating rod is slidably connected to the outer wall of the circular sleeve, and the end of the pressing and rotating rod slides and rotates through the circular sleeve and is fixedly connected with a locking block.

[0010] Preferably, the inner walls of the two insertion slots are symmetrically provided with two stabilizing slots, and both stabilizing slots are adapted to the locking block.

[0011] Preferably, two mating blocks are fixedly connected to the outer walls of both sides of the mounting base, and mating grooves are provided on the outer walls of both sides of the mounting plate.

[0012] Preferably, a servo motor is fixedly connected to the outer side wall of the barrel, and the output shaft of the servo motor is fixedly connected to the screw.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] This device uses an electric heating wire assembly within the heating component, which is spirally and tightly fitted to the outer wall of the barrel. Utilizing the structure of the spiral heat-conducting grooves, heat is efficiently and evenly conducted to all parts of the barrel. Simultaneously, an electric heating rod fixed to the screw cavity by the connecting flange assembly provides auxiliary heating to the resin material from within, forming a coordinated internal and external heating mode. This ensures that the resin material is heated evenly within the barrel, creating a stable and uniform heating environment. This results in more stable molding quality of the injection molded products, preventing rapid carbonization reactions in localized overheated areas and significantly reducing the risk of resin carbonization and blockage.

[0015] This device connects to the mounting base via a feeding frame and a mounting plate, with a snap-fit ​​assembly between the mounting plate and the mounting base. When maintenance is required, the operator presses the pressing and rotating rods on both sides of the mounting plate, which compresses the circular sleeve spring, causing the locking block to disengage from the stabilizing groove on the inner wall of the slot, thus achieving rapid separation. The entire process requires no additional tools, and the average installation or disassembly operation takes very little time. Compared to traditional feeding devices, this device is easier for operators to use, significantly reducing equipment maintenance time and substantially improving production efficiency. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of Embodiment 1 of the application;

[0017] Figure 2 This is a cross-sectional view of the barrel structure of Embodiment 1 of the application;

[0018] Figure 3 This is a cross-sectional view of the heating component structure in Embodiment 1 of the application;

[0019] Figure 4 This is a schematic diagram of the mounting base structure of Embodiment 1.

[0020] Figure 5 This is a schematic diagram of the pouring frame structure of Embodiment 1.

[0021] Figure 6 This is a schematic diagram of the electric heating rod structure of Embodiment 1 of the application;

[0022] Figure 7 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0023] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Heating assembly; 3. Barrel; 4. Discharge frame; 5. Mounting plate; 6. Mounting base; 7. Servo motor; 8. Discharge chute; 9. Screw; 10. Electric heating rod; 11. Electric heating wire assembly; 12. Heating tank; 13. Connecting flange assembly; 14. Connecting block; 15. Insertion groove; 16. Stabilizing groove; 17. Connecting groove; 18. Locking block; 19. Pressing rotating rod; 20. Circular sleeve; 21. Spring component; 22. Inner groove. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Figure 7 This application will be described in further detail.

[0025] A resin injection molding machine anti-clogging barrel with a spiral heat-conducting groove includes a frame 1 and a heating unit. A barrel 3 is fixedly mounted on the outer wall of the frame 1, with one end of the barrel 3 connected to the injection molding mold for easy material output. A screw 9 is rotatably connected to the inner wall of the barrel 3, rotating within the barrel 3 and efficiently pushing the resin material entering the barrel 3 forward through its threaded structure, forming a stable material flow. The heating unit is installed at the end of the barrel 3 for easy heating of the material. A discharge groove 8 is formed on the outer wall of the barrel 3 away from the heating unit, and a mounting base 6 is fixedly connected to the outer wall of the discharge groove 8. The top outer wall of the mounting base 6 is provided with a mounting plate 5. The upper surface of the mounting plate 5 is fixedly connected to the pouring frame 4, and a snap-fit ​​assembly is provided between the mounting plate 5 and the mounting base 6. The pouring trough 8 on the side of the barrel 3 away from the heating unit, together with the mounting base 6, the mounting plate 5 and the pouring frame 4, provides a convenient channel for resin raw materials to enter the barrel 3. The pouring frame 4 is connected to the mounting base 6 through the mounting plate 5. The installation process is simple and efficient, and the connection is stable. When it is necessary to clean the residual resin raw materials in the pouring frame 4, or to replace the pouring frame 4 of different specifications due to production needs, the snap-fit ​​assembly can quickly complete the disassembly and installation operations, which greatly shortens the equipment maintenance time and improves production efficiency.

[0026] The heating unit includes a heating component 2, and the inner cavity of the heating component 2 is provided with a heating groove 12. An electric heating wire assembly 11 is fixedly connected to the outer wall of the heating groove 12, and the electric heating wire assembly 11 is spirally attached to the outer wall of the barrel 3. The electric heating wire assembly 11 in the inner cavity of the heating component 2 in the heating unit is spirally attached to the outer wall of the barrel 3, which can evenly and efficiently transfer heat along the spiral heat conduction groove of the barrel 3 to all parts of the barrel 3, realizing all-round uniform heating of the resin raw material in the heating section of the barrel 3. Two connecting flange assemblies 13 are fixedly installed in the inner cavity of the screw 9, and multiple electric heating rods 10 are arranged between the two connecting flange assemblies 13. The multiple electric heating rods 10 are spirally attached to the outer wall of the barrel 3. The two ends of the evenly distributed circumferential array are fixedly connected to two connecting flange assemblies 13, and the connecting flange assemblies 13 are fixedly connected to the inner cavity of the screw 9. Multiple electric heating rods 10 correspond to electric heating wire assemblies 11. The multiple electric heating rods 10 and electric heating wire assemblies 11 between the connecting flange assemblies 13 in the inner cavity of the screw 9 work together to provide auxiliary heating to the resin raw material passing through the screw 9 from inside. Through this internal and external coordinated heating mode, the local overheating problem common in traditional heating methods is effectively avoided, the risk of resin carbonization is greatly reduced, and internal blockage is prevented. This ensures that the resin raw material is heated evenly and fully plasticized in the barrel 3, providing high-quality raw materials for subsequent injection molding.

[0027] The snap-fit ​​assembly includes two snap-fit ​​slots 15, which are symmetrically distributed on both sides of the mounting base 6. The outer walls of both sides of the mounting plate 5 are symmetrically provided with inner grooves 22, and a circular sleeve 20 is slidably connected to the outer wall of the inner groove 22. A spring element 21 is provided between the circular sleeve 20 and the inner groove 22, with both ends of the spring element 21 fixedly connected to the circular sleeve 20 and the inner groove 22 respectively. A pressing and rotating rod 19 is slidably connected to the outer wall of the circular sleeve 20, and the end of the pressing and rotating rod 19 slides and rotates through the circular sleeve 20 and is fixedly connected to a locking block 18. The operator only needs to press the pressing and rotating rods 19 on both sides to easily complete the installation and disassembly of the locking block 18 and the locking groove 15. During installation, pressing the rotating rod 19 drives the circular sleeve 20 to compress the spring 21, which in turn drives the locking block 18 into the locking groove 15. Through subsequent stable operation, a quick and firm connection between the mounting plate 5 and the mounting base 6 is achieved. During disassembly, the rotating rod 19 can be pressed in the opposite direction to separate them. No additional tools are required, which greatly improves the convenience of equipment maintenance and saves maintenance time and labor costs.

[0028] Two stabilizing grooves 16 are symmetrically opened on the inner walls of the two locking grooves 15, and both stabilizing grooves 16 are adapted to the locking block 18. When the locking block 18 enters the locking groove 15, the locking block 18 is aligned with the stabilizing groove 16 by rotating and pressing the rotating rod 19. After releasing the pressing and rotating rod 19, the spring member 21 rebounds and tightly locks the locking block 18 into the stabilizing groove 16. This can effectively prevent the locking block 18 from rotating or displacing accidentally in the locking groove 15, and enhance the stability of the connection between the mounting plate 5 and the mounting base 6.

[0029] Two mating blocks 14 are fixedly connected to the outer walls of both sides of the mounting base 6, and mating grooves 17 are provided on the outer walls of both sides of the mounting plate 5. During the installation operation, the operator can quickly align the mating blocks 14 with the mating grooves 17 to achieve the initial positioning of the mounting plate 5 and the mounting base 6, which facilitates the subsequent installation of the snap-fit ​​components, greatly improves the installation efficiency, ensures the accuracy of the installation, and further improves the overall assembly quality of the equipment.

[0030] A servo motor 7 is fixedly connected to the outer side wall of the barrel 3, and the output shaft of the servo motor 7 is fixedly connected to the screw 9. The servo motor 7 provides a stable and controllable power source for the screw 9 to rotate inside the outer wall of the barrel 3.

[0031] The implementation principle of the anti-clogging barrel for a resin injection molding machine with a spiral heat-conducting groove in this utility model application is as follows: In the initial assembly stage, the pouring frame 4 is precisely aligned with the docking blocks 14 on both sides of the mounting base 6, relying on the docking groove 17 on the mounting plate 5, to complete the initial positioning. At this time, the locking blocks 18 on both sides of the mounting plate 5 correspond exactly to the locking grooves 15 of the mounting base 6. The operator presses the pressing rotating rods 19 on both sides, which then drive the circular sleeve 20 to slide in the inner groove 22 of the mounting plate 5, compressing the spring 21. During this process, the pressing rotating rods 19 drive the locking blocks 18 to smoothly enter the locking grooves 15. Immediately afterwards, rotating the pressing rotating rods 19 causes the locking blocks 18 to rotate accordingly. Until the stabilizing groove 16 on the inner wall of the insertion groove 15 is precisely aligned, after releasing the pressing and rotating rod 19, the spring 21 quickly rebounds, tightly locking the locking block 18 into the stabilizing groove 16, thus firmly fixing the locking block 18 to the insertion groove 15. In this way, the mounting plate 5 and the mounting base 6 are firmly connected, laying a solid foundation for subsequent material pouring operations. This installation method greatly facilitates the cleaning and replacement of the material pouring frame 4. When it is necessary to clean the residual resin material in the material pouring frame 4, or to replace the material pouring frame 4 of different specifications due to production needs, the mounting plate 5 and the mounting base 6 can be quickly separated by pressing the rotating rod 19 in the opposite direction. The whole process does not require the use of additional tools, greatly shortening the equipment maintenance time and improving production efficiency.

[0032] After the equipment is started, the resin raw material in the discharge frame 4 falls smoothly into the barrel 3 through the discharge chute 8 under the action of gravity. At this time, the servo motor 7 responds quickly, and its output shaft rotates at high speed, driving the screw 9 connected to it to rotate smoothly inside the outer wall of the barrel 3. As the screw 9 continues to rotate, the resin raw material in the barrel 3 is continuously pushed forward by the screw 9's thread structure, and gathers in the barrel 3 to form a stable material flow, which moves in an orderly manner towards the heating unit.

[0033] The heating unit is activated simultaneously. The electric heating wire assembly 11 inside the heating component 2 heats up immediately upon being energized. Because the electric heating wire assembly 11 is meticulously designed in a spiral shape and tightly adheres to the outer wall of the barrel 3, the heat it generates can be efficiently and evenly transferred to all parts of the barrel 3 along the spiral heat-conducting grooves. This ensures that the resin material inside the barrel 3 receives uniform heating from all directions without any dead angles, guaranteeing that every part of the material can be fully plasticized at a suitable temperature. Simultaneously, multiple electric heating rods 10 between the two connecting flange assemblies 13 inside the screw 9 also work in concert. These electric heating rods 10 respond to the electric heating wire assembly 11, providing auxiliary heating to the resin material passing through from inside the screw 9. Through this internal and external coordination... The different heating mode further ensures that the resin raw material is heated evenly in the barrel 3, effectively avoiding the local overheating problem common in traditional heating methods, and greatly reducing the risk of resin carbonization. After being fully heated and well plasticized, the resin raw material is precisely extruded from the end of the barrel 3 near the heating unit under the continuous and powerful push of the screw 9, and smoothly enters the subsequent injection molding process. This complete workflow not only ensures efficient heating and stable delivery of the resin raw material, but also improves the plasticization quality of the resin raw material with the uniform heating effect, providing higher dimensional accuracy and better surface quality for the subsequent injection molded products, effectively reducing the defect rate, reducing production costs, and significantly enhancing the stability and reliability of the entire injection molding production process.

Claims

1. A resin injection molding machine anti-clogging barrel with a spiral heat-conducting groove, comprising a frame (1) and a heating unit, characterized in that: A cylinder (3) is fixedly installed on the outer wall of the frame (1), and a screw (9) is rotatably connected to the inner side of the outer wall of the cylinder (3). The heating unit is installed at the end of the cylinder (3). A material pouring groove (8) is opened on the outer wall of the cylinder (3) away from the heating unit. A mounting base (6) is fixedly connected to the outer wall of the material pouring groove (8). A mounting plate (5) is provided on the top outer wall of the mounting base (6). A material pouring frame (4) is fixedly connected to the upper surface of the mounting plate (5). A buckle assembly is provided between the mounting plate (5) and the mounting base (6). The heating unit includes a heating component (2), and the inner cavity of the heating component (2) is provided with a heating groove (12). An electric heating wire assembly (11) is fixedly connected to the outer wall of the heating groove (12), and the electric heating wire assembly (11) is spirally attached to the outer wall of the barrel (3). Two connecting flange assemblies (13) are fixedly installed in the inner cavity of the screw (9), and multiple electric heating rods (10) are arranged between the two connecting flange assemblies (13). The multiple electric heating rods (10) correspond to the electric heating wire assembly (11).

2. The anti-clogging barrel for a resin injection molding machine with a spiral heat-conducting groove according to claim 1, characterized in that: The buckle assembly includes two snap-in slots (15), which are symmetrically distributed on both sides of the mounting base (6). The outer walls of both sides of the mounting plate (5) are symmetrically provided with inner grooves (22), and the outer wall of the inner groove (22) is slidably connected with a round sleeve (20). A spring element (21) is provided between the round sleeve (20) and the inner groove (22). The two ends of the spring element (21) are fixedly connected to the round sleeve (20) and the inner groove (22) respectively. The outer wall of the round sleeve (20) is slidably connected with a pressing rotating rod (19), and the end of the pressing rotating rod (19) slides and rotates through the round sleeve (20) and is fixedly connected with a locking block (18).

3. A resin injection molding machine anti-clogging barrel with a spiral heat-conducting groove according to claim 2, characterized in that: The inner walls of the two slots (15) are symmetrically provided with two stabilizing slots (16), and both stabilizing slots (16) are adapted to the locking block (18).

4. A resin injection molding machine anti-clogging barrel with a spiral heat-conducting groove according to claim 1, characterized in that: The mounting base (6) has two mating blocks (14) fixedly connected to its two outer walls, and the mounting plate (5) has mating grooves (17) on both outer walls.

5. A resin injection molding machine anti-clogging barrel with a spiral heat-conducting groove according to claim 1, characterized in that: A servo motor (7) is fixedly connected to the outer side wall of the barrel (3), and the output shaft of the servo motor (7) is fixedly connected to the screw (9).

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