A composite extrusion die for a spiral tube

Abstract

The utility model provides a kind of composite extrusion die for spiral pipe. It is related to pipe production technical field.The composite extrusion die for spiral pipe includes die head main body, middle collar, gland and die sleeve, the die head main body is equipped with die core, the die sleeve is equipped on the die core, the die head main body is rotatably equipped with rotating core by first bearing and second bearing, the middle collar is equipped on the rotating core, the gland is equipped on the rotating core, the gland, middle collar and die head main body are fixedly connected by screw, the die head main body is equipped with mounting plate, motor is fixedly installed on the mounting plate, the output shaft of motor penetrates the mounting plate and is slidably connected with it, the output shaft of motor and rotating core are all fixedly equipped with belt pulley.The utility model can realize pipe body and external reinforcing rib integrated molding, effectively improve production efficiency and reduce manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting production technology, specifically a composite extrusion die for spiral pipes. Background Technology

[0002] Pipe components are fundamental components widely used in the field of liquid transfer. Depending on the functional requirements of the application scenario, their shape and structure present diverse designs, such as straight pipes with smooth inner and outer walls, expandable spiral hoses, and non-expandable rigid spiral pipes. Different types of pipe fittings correspond to different fluid flow adaptation requirements and structural strength standards.

[0003] In the production of spiral tubes with smooth inner walls and external reinforcing ribs, existing technologies typically employ complex extrusion molds for processing. Since the external reinforcing ribs of this type of spiral tube cannot be formed synchronously with the main body of the tube, an additional processing step is required after the tube is extruded to prepare the reinforcing ribs. This production method not only extends the overall processing cycle, making it difficult to improve production efficiency, but also requires dedicated secondary processing equipment, significantly increasing equipment investment costs and manufacturing costs, which is not conducive to the economic requirements of large-scale production.

[0004] Therefore, it is necessary to provide a new composite extrusion die for spiral tubes to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a composite extrusion mold for spiral tubes that can achieve integrated molding of the tube body and external reinforcing ribs, effectively improve production efficiency and reduce manufacturing costs.

[0006] To solve the above-mentioned technical problems, the present invention provides a composite extrusion die for spiral tubes, comprising: a die head body, a middle collar, a pressure cap, and a die sleeve. The die head body contains a die core, and the die sleeve is fitted onto the die core. A rotating core is rotatably fitted inside the die head body via a first bearing and a second bearing. The middle collar is fitted onto the rotating core, and the pressure cap is fitted onto the rotating core. The pressure cap, middle collar, and die head body are fixedly connected by screws. A mounting plate is provided on the die head body, and a motor is fixedly mounted on the mounting plate. The output shaft of the motor passes through the mounting plate and is slidably connected to it. Pulleys are fixedly fitted onto both the motor's output shaft and the rotating core, and the same belt is fitted onto both pulleys.

[0007] Furthermore, the mounting plate is fixedly connected to the mold head body.

[0008] Furthermore, the pulley is fixed to the output shaft of the motor by a snap ring.

[0009] Furthermore, the mold core penetrates the rotating core.

[0010] Furthermore, the middle collar is provided with reinforcing rib injection holes, and the die head body is provided with a tube blank body injection hole on one side.

[0011] Furthermore, a connecting base is fixedly installed on the main body of the mold head, and a gantry frame is fixedly installed on the connecting base. The mounting plate is located inside the gantry frame, and an adjusting screw is threaded onto the top of the gantry frame. The bottom end of the adjusting screw extends into the gantry frame and is rotatably connected to the mounting plate.

[0012] Furthermore, two guide columns are slidably installed on the top of the gantry frame, and the bottom ends of the two guide columns extend into the gantry frame and are fixedly connected to the mounting plate. Two station plates are fixedly installed on the top of the gantry frame, and fastening screws are threaded onto the two station plates. The ends of the two fastening screws abut against the two guide columns respectively.

[0013] Furthermore, a rotating wheel is fixedly installed at the top of the adjusting screw, and the rotating wheel is provided with anti-slip stripes.

[0014] Compared with related technologies, the composite extrusion die for spiral tubes provided by this utility model has the following beneficial effects: I. This utility model achieves integrated molding of the tube blank body and spiral reinforcing ribs through a rotating core, eliminating secondary processing steps, shortening the processing cycle, and improving production efficiency; moreover, eliminating secondary processing also reduces equipment investment costs and production costs, thus meeting the economic needs of large-scale production. II. This utility model uses a transmission mechanism consisting of a motor, pulley, and belt to drive the rotating core to rotate at a uniform speed. The material is supplied separately from the reinforcing rib injection hole of the middle collar and the blank body injection hole of the die head body, ensuring molding accuracy and structural stability. Attached Figure Description

[0015] Figure 1 A front view schematic diagram of the first embodiment of the composite extrusion die for spiral tubes provided by this utility model; Figure 2 An exploded structural diagram of the first embodiment of the composite extrusion die for spiral tubes provided by this utility model; Figure 3 A bottom cross-sectional view of the first embodiment of the composite extrusion die for spiral tubes provided by this utility model; Figure 4 A top plan view of the first embodiment of the composite extrusion die for spiral tubes provided by this utility model; Figure 5A front view schematic diagram of a second embodiment of the composite extrusion die for spiral tubes provided by this utility model; Figure 6 This is a side view of the second embodiment of the composite extrusion die for spiral tubes provided by this utility model.

[0016] The following are the labels in the diagram: 1. Belt; 2. Pressure cap; 3. First bearing; 4. Middle collar; 5. Rotating core; 6. Second bearing; 7. Mold sleeve; 8. Mold core; 9. Mold head body; 10. Snap ring; 11. Pulley; 12. Motor; 13. Mounting plate; 14. Connecting base; 15. Gantry frame; 16. Adjusting screw; 17. Guide column; 18. Station plate; 19. Fastening screw. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] First embodiment: Please refer to the following: Figures 1-4 The composite extrusion die for spiral tubes includes: a die head body 9, a middle collar 4, a pressure cap 2, and a die sleeve 7. The middle collar 4 has reinforcing rib injection holes, and the die head body 9 has a tube blank injection hole on one side. The die head body 9 has a die core 8 inside, and the die sleeve 7 is fitted on the die core 8. A rotating core 5 is rotatably fitted inside the die head body 9 through a first bearing 3 and a second bearing 6, and the die core 8 passes through the rotating core 5. The middle collar 4 is fitted on the rotating core 5, and the pressure cap 2 is fitted on the rotating core 5. The pressure cap 2, the middle collar 4, and the die head body 9 are fixedly connected by screws. A mounting plate 13 is fixedly installed on the die head body 9, and a motor 12 is fixedly installed on the mounting plate 13. The output shaft of the motor 12 passes through the mounting plate 13 and is slidably connected to it. Both the output shaft of the motor 12 and the rotating core 5 are fixedly fitted with pulleys 11. The two pulleys 11 are fitted with the same belt 1, and the pulleys 11 on the output shaft of the motor 12 are reliably fixed and limited by snap rings 10.

[0019] In this embodiment The raw material for forming the tube blank is injected through the tube blank injection hole on one side of the die head body 9 and flows towards the outlet end along the flow channel formed by the die core 8 and the die sleeve 7; the raw material for forming the reinforcing rib is injected through the reinforcing rib injection hole on the middle sleeve ring 4 and enters the special flow channel formed by the rotating core 5 and the middle sleeve ring 4.

[0020] Then, the motor 12 is started, and its output shaft drives the rotating core 5 to rotate at a constant speed around the axis of the mold core 8 through the transmission mechanism composed of the pulley 11 and the belt 1. The main body raw material of the tube blank is continuously extruded in the flow channel to form a tubular substrate. At the same time, the rotation of the rotating core 5 causes the reinforcing rib material to be spirally extruded through the special flow channel and simultaneously formed into a spiral reinforcing rib on the outside of the tubular substrate. Since the mold core 8 passes through the rotating core 5 and remains fixed, the main body of the tube blank and the spiral reinforcing rib are integrally composite formed at the mold exit end, and finally a spiral tube product with external reinforcing rib is obtained.

[0021] Compared with related technologies, the composite extrusion die for spiral tubes provided by this utility model has the following beneficial effects: I. This utility model achieves integrated molding of the tube blank body and the spiral reinforcing ribs through the rotating core 5, eliminating secondary processing steps, shortening the processing cycle, and improving production efficiency; moreover, while eliminating secondary processing, it also reduces equipment investment costs and production costs, thus meeting the economic needs of large-scale production. II. This utility model uses a transmission mechanism consisting of a motor 12, a pulley 11, and a belt 1 to drive the rotating core 5 to rotate at a uniform speed. It also uses the reinforcing rib injection hole of the middle collar 4 and the blank body injection hole of the die head body 9 to supply materials in separate ways, thus ensuring molding accuracy and structural stability.

[0022] Second embodiment: Based on the composite extrusion die for spiral tubes provided in the first embodiment of this application, the second embodiment of this application proposes another composite extrusion die for spiral tubes. The second embodiment is merely a further embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0023] The second embodiment of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figures 5-6 In the second embodiment of the composite extrusion die for spiral tubes provided by this utility model: a connecting base 14 is fixedly installed on the die head body 9, a gantry frame 15 is fixedly installed on the connecting base 14, a mounting plate 13 is located inside the gantry frame 15, an adjusting screw 16 is threadedly installed on the top of the gantry frame 15, the bottom end of the adjusting screw 16 extends into the gantry frame 15 and is rotatably connected to the mounting plate 13, and a rotating wheel is fixedly installed on the top of the adjusting screw 16. The rotating wheel is provided with anti-slip stripes to facilitate the operator's rotation operation.

[0025] In this embodiment, in order to ensure that the mounting plate 13 can perform stable linear lifting, two guide columns 17 are slidably installed on the top of the gantry frame 15. The bottom ends of the two guide columns 17 extend into the gantry frame 15 and are fixedly connected to the mounting plate 13. Two station plates 18 are fixedly installed on the top of the gantry frame 15. Each station plate 18 is threaded with a fastening screw 19. The ends of the two fastening screws 19 respectively abut against the two guide columns 17. By utilizing the abutting effect of the two, the belt 1 can be stably maintained in the adjusted state after the tension is adjusted.

[0026] In this embodiment When adjusting the tension of belt 1 during subsequent use, first tighten the two fastening screws 19 to separate them from the corresponding guide post 17. Then rotate the adjusting screw 16. At this time, the mounting plate 13 will lift the motor 12 and the pulley 11 on its output shaft, thereby gradually adjusting the tension of belt 1. After adjustment, tighten the two fastening screws 19 again, thus providing the operator with a convenient way to adjust the tension.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A composite extrusion die for spiral tubes, comprising a die head body, a middle collar, a pressure cap, and a die sleeve, characterized in that, The die head body has a die core inside, and the die sleeve is fitted on the die core. A rotating core is rotatably fitted inside the die head body through a first bearing and a second bearing. A middle collar is fitted on the rotating core, and a pressure cap is fitted on the rotating core. The pressure cap, the middle collar, and the die head body are fixedly connected by screws. The die head body has a mounting plate, and a motor is fixedly mounted on the mounting plate. The output shaft of the motor passes through the mounting plate and is slidably connected to it. Both the output shaft of the motor and the rotating core are fixedly fitted with pulleys, and the same belt is fitted on the two pulleys.

2. The composite extrusion die for spiral tubes according to claim 1, characterized in that, The mounting plate is fixedly connected to the mold head body.

3. The composite extrusion die for spiral tubes according to claim 1, characterized in that, The pulley is fixed to the output shaft of the motor by a snap ring.

4. The composite extrusion die for spiral tubes according to claim 1, characterized in that, The mold core penetrates the rotating core.

5. The composite extrusion die for spiral tubes according to claim 1, characterized in that, The middle collar is provided with reinforcing rib injection holes, and the die head body is provided with a tube blank body injection hole on one side.

6. The composite extrusion die for spiral tubes according to claim 1, characterized in that, A connecting base is fixedly installed on the main body of the mold head, and a gantry frame is fixedly installed on the connecting base. The mounting plate is located inside the gantry frame, and an adjusting screw is threaded onto the top of the gantry frame. The bottom end of the adjusting screw extends into the gantry frame and is rotatably connected to the mounting plate.

7. The composite extrusion die for spiral tubes according to claim 6, characterized in that, Two guide columns are slidably installed on the top of the gantry frame. The bottom ends of the two guide columns extend into the gantry frame and are fixedly connected to the mounting plate. Two station plates are fixedly installed on the top of the gantry frame. Each of the two station plates is threaded with a fastening screw. The ends of the two fastening screws abut against the two guide columns respectively.

8. The composite extrusion die for spiral tubes according to claim 6, characterized in that, A rotating wheel is fixedly installed at the top of the adjusting screw, and the rotating wheel is provided with anti-slip stripes.

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