Radial extrusion tube making machine

Abstract

The utility model relates to concrete pipe production technical field, a kind of radial extrusion pipe making machine, including base, support table is equipped in the top of base, and the corner of support table is fixed with base by support column, and the middle part of support table is equipped with circular slot, and coaxially be provided with annular plate in circular slot, and extrusion head is provided below annular plate, and the top of extrusion head is equipped with driving shaft, and the top of driving shaft is connected with driving motor, and driving motor is set on lifting frame, and lifting frame is fixed with support table;At least three rotating seats are equipped with inside annular plate, and spherical block is rotatably installed in the end of rotating seat close to extrusion head.The utility model can provide radial support when driving shaft rotates by setting at least three rotating seats with spherical block and pushing mechanism, effectively offset centrifugal force generated by extrusion head, prevent driving shaft from being damaged due to shaking or centrifugal effect, significantly improve the stability and service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of concrete pipe production technology, and in particular to a radial extrusion pipe making machine. Background Technology

[0002] A radial extrusion pipe forming machine is a device used to produce concrete drainage pipes, especially suitable for producing small and medium diameter pipes. Its working principle involves using the rotational motion of the spindle to extrude dry, hard concrete through an extrusion head, forming the pipe axially to produce cement concrete pipes and reinforced concrete pipes.

[0003] In the use of radial extrusion pipe-making machines, the pipe shell is placed on the machine, and then concrete is injected into it. As concrete is continuously injected, the radial extrusion pipe-making machine extends a continuously rotating extrusion head into the center of the pipe shell, forming a hollow tube within the shell. However, during this process, because the extrusion head is connected to only one drive shaft matching the length of the pipe shell, and the extrusion head itself has a relatively large mass, centrifugal force is easily generated during rotation, exerting a radial external force on the drive shaft, which can easily cause damage. Therefore, we propose a radial extrusion pipe-making machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a radial extrusion tube forming machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: Design a radial extrusion tube forming machine, including a base, a support platform above the base, the corners of the support platform being fixed to the base by support columns, a circular groove in the middle of the support platform, an annular plate being coaxially arranged in the circular groove, an extrusion head being arranged below the annular plate, a drive shaft being installed on the top of the extrusion head, a drive motor being connected to the top of the drive shaft, the drive motor being arranged on a lifting frame, and the lifting frame being fixed to the support platform; At least three rotating seats are provided along the inner side of the annular plate. A spherical block is rotatably installed at one end of the rotating seat near the extrusion head. The central axis of the spherical block is set along the radial direction of the drive shaft. A pushing mechanism is connected to the other end of the rotating seat through a connector. The pushing mechanism is installed on the outer wall of the annular plate.

[0006] Preferably, a control box is installed on the outside of one of the support columns, and a controller is installed inside the control box. The controller is connected to the drive motor and the push mechanism respectively through wires.

[0007] Preferably, the connector includes a connecting shaft, one end of which is mounted on the end of the rotating seat away from the spherical block, and the other end of which is placed inside a connecting tube and fixed to a support seat. The support seat is fixed to the output end of the pushing mechanism. A compression spring is sleeved on the connecting shaft, one end of which is fixed to the rotating seat and the other end of which is fixed to the support seat.

[0008] Preferably, a guide shaft is provided parallel to the side of the pushing mechanism, one end of the guide shaft is fixed to the support base, and the other end of the guide shaft slides through the annular plate.

[0009] Preferably, the lifting frame includes a crossbeam, a drive motor is fixed on the crossbeam, and a linear motor is installed at each end of the crossbeam. The linear motor is connected to the controller via wires, the slider of the linear motor is fixed to the crossbeam, and the slide rail of the linear motor is installed inside the U-shaped frame with the opening facing downwards. The bottom of the U-shaped frame is fixed to the support platform.

[0010] Preferably, a hopper is installed on one side of the support platform, and a guide trough is installed at the bottom of the hopper, with the bottom of the guide trough penetrating the annular plate and placed inside the annular plate.

[0011] Preferably, a limiting groove is provided at the top center of the base, and the limiting groove corresponds to the annular plate.

[0012] The design scheme proposed in this utility model has the following beneficial effects in application: 1. By setting at least three rotating seats with spherical blocks and a pushing mechanism, this utility model can provide radial support when the drive shaft rotates, effectively counteract the centrifugal force generated by the extrusion head, prevent the drive shaft from being damaged by shaking or centrifugal force, and significantly improve the stability and service life of the equipment.

[0013] 2. This utility model provides elastic buffer for the drive shaft by using a compression spring, avoiding hard contact between the spherical block and the drive shaft, reducing stress concentration, further reducing the risk of drive shaft breakage, and improving the flexibility and reliability of the limiting effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the bottom structure of the support platform of this utility model; Figure 3 This is a schematic diagram of the top structure of the support platform of this utility model; Figure 4 This is a schematic diagram of the inner structure of the annular plate of this utility model.

[0015] In the diagram: 1. Base; 2. Support platform; 3. Support column; 4. Annular plate; 5. Extrusion head; 6. Drive shaft; 7. Drive motor; 8. Crossbeam; 9. Linear motor; 10. U-shaped frame; 11. Rotating seat; 12. Spherical block; 13. Connecting shaft; 14. Connecting pipe; 15. Compression spring; 16. Support seat; 17. Pushing mechanism; 18. Guide shaft; 19. Discharge hopper; 20. Guide channel; 21. Limiting groove; 22. Control box. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figures 1-4 A radial extrusion tube forming machine includes a base 1, with a limiting groove 21 provided at the top center of the base 1. The limiting groove 21 corresponds to an annular plate 4. In use, a tube shell for making a tree shape from concrete pipe is taken out and placed in the limiting groove 21, thereby limiting the tube shell placed on the base 1.

[0018] A support platform 2 is provided above the base 1. The corners of the support platform 2 are fixed to the base 1 by support columns 3. A circular groove is provided in the middle of the support platform 2, and an annular plate 4 is coaxially arranged in the circular groove. An extrusion head 5 is provided below the annular plate 4. A drive shaft 6 is installed on the top of the extrusion head 5. A drive motor 7 is connected to the top of the drive shaft 6. The drive motor 7 is set on a lifting frame, and the lifting frame is fixed to the support platform 2. The lifting frame allows the extrusion head 5 to be raised and lowered below the operating platform 2, and the drive motor 7 will drive the extrusion head 5 to rotate during the raising and lowering process.

[0019] The lifting frame includes a crossbeam 8, a drive motor 7 fixed on the crossbeam 8, and a linear motor 9 installed at each end of the crossbeam 8. The slider of the linear motor 9 is fixed to the crossbeam 8, and the slide rail of the linear motor 9 is installed inside the U-shaped frame 10 with the opening facing downward. The bottom of the U-shaped frame 10 is fixed on the support platform 2, and the linear motor 9 provides power for the lifting of the extrusion head 5.

[0020] Specifically, a hopper 19 is installed on one side of the support platform 2, and a guide channel 20 is installed at the bottom of the hopper 19. The bottom of the guide channel 20 passes through the annular plate 4 and is placed inside the annular plate 4. In actual use, a hoist is set on one side of the hopper 19 to send concrete into the hopper 19. Then, the concrete in the hopper 19 will fall into the pipe shell from the annular plate 4 along the guide channel 20. During the process of the concrete falling into the pipe shell, the extrusion head 5 is also placed in the pipe shell and performs repeated up and down lifting operations while rotating continuously, so that the concrete forms a hollow pipe.

[0021] At least three rotating seats 11 are provided along the inner side of the annular plate 4. A spherical block 12 is rotatably installed on one end of the rotating seat 11 near the extrusion head 5. The central axis of the spherical block 12 is arranged along the radial direction of the drive shaft 6. A pushing mechanism 17 is connected to the other end of the rotating seat 11 through a connector. The pushing mechanism 17 is installed on the outer wall of the annular plate 4. In actual use, the pushing mechanism 17 is either a hydraulic cylinder or an electric push rod. If a hydraulic cylinder is used as the pushing mechanism 17, its hydraulic station can be placed on one side of the base 1 or on the operating table 2. Under the push of the pushing mechanism 17, the spherical block 12 is pressed against the outer wall of the drive shaft 6. Due to the rolling of the spherical block 12 in the rotating seat 11, it can limit the movement of the drive shaft 6 without affecting its lifting and rotation, so that the drive shaft 6 will not shake due to the centrifugal force of the extrusion head 5 during rotation, thereby causing damage to the drive shaft 6.

[0022] It should be noted that the connecting component includes a connecting shaft 13. One end of the connecting shaft 13 is installed on the end of the rotating seat 11 away from the spherical block 12, and the other end of the connecting shaft 13 is placed inside the connecting tube 14. The other end of the connecting tube 14 is fixed on the support seat 16. The support seat 16 is fixed to the output end of the pushing mechanism 17. A compression spring 15 is sleeved on the connecting shaft 13. One end of the compression spring 15 is fixed on the rotating seat 11, and the other end of the compression spring 15 is fixed on the support seat 16. This allows the spherical block 12 to provide a buffer for the possible shaking of the drive shaft 6, so as to prevent the drive shaft 6 from breaking at the bending point of the spherical block 12 due to direct hard contact. It also improves the limiting effect of the spherical block 12 on the drive shaft 6.

[0023] Furthermore, a guide shaft 18 is provided parallel to the side of the pushing mechanism 17. One end of the guide shaft 18 is fixed to the support base 16, and the other end of the guide shaft 18 slides through the annular plate 4 to provide guidance for the linear movement of the spherical block 12 and ensure that the spherical block 12 always moves along the axial direction of the drive shaft 6.

[0024] Specifically, a control box 22 is installed on the outside of one of the support columns 3. The control box 22 contains a controller, which is connected to the drive motor 7, the linear motor 9, and the push mechanism 17 via wires. In actual use, the controller is one of a PLC logic unit, a control motherboard, or a control host. A touch screen is installed on the outer wall of the control box 22, and the touch screen is connected to the controller via wires to control the operation of the machine.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A radial extrusion tube forming machine, characterized in that: Includes a base (1), a support platform (2) is provided above the base (1), the corners of the support platform (2) are fixed to the base (1) by support columns (3), a circular groove is provided in the middle of the support platform (2), and an annular plate (4) is coaxially arranged in the circular groove. An extrusion head (5) is provided below the annular plate (4), a drive shaft (6) is installed on the top of the extrusion head (5), and a drive motor (7) is connected to the top of the drive shaft (6). The drive motor (7) is set on the lifting frame, and the lifting frame is fixed to the support platform (2). At least three rotating seats (11) are provided on the inner side of the annular plate (4). A spherical block (12) is rotatably installed on one end of the rotating seat (11) near the extrusion head (5). The central axis of the spherical block (12) is set along the radial direction of the drive shaft (6). A pushing mechanism (17) is connected to the other end of the rotating seat (11) through a connector. The pushing mechanism (17) is installed on the outer wall of the annular plate (4).

2. The radial extrusion tube forming machine according to claim 1, characterized in that: A control box (22) is installed on the outside of one of the support columns (3). A controller is installed inside the control box (22). The controller is connected to the drive motor (7) and the push mechanism (17) respectively through wires.

3. A radial extrusion tube forming machine according to claim 1, characterized in that: The connector includes a connecting shaft (13), one end of which is mounted on the end of the rotating seat (11) away from the spherical block (12), and the other end of which is placed inside the connecting tube (14), and the other end of the connecting tube (14) is fixed on the support seat (16). The support seat (16) is fixed to the output end of the push mechanism (17). A compression spring (15) is sleeved on the connecting shaft (13), one end of which is fixed on the rotating seat (11), and the other end of which is fixed on the support seat (16).

4. A radial extrusion tube forming machine according to claim 3, characterized in that: A guide shaft (18) is provided parallel to the side of the push mechanism (17). One end of the guide shaft (18) is fixed on the support base (16), and the other end of the guide shaft (18) slides through the annular plate (4).

5. A radial extrusion tube forming machine according to claim 2, characterized in that: The lifting frame includes a crossbeam (8), a drive motor (7) is fixed on the crossbeam (8), and a linear motor (9) is installed at the end of the crossbeam (8). The linear motor (9) is connected to the controller through wires. The slider of the linear motor (9) is fixed to the crossbeam (8), and the slide rail of the linear motor (9) is installed inside the U-shaped frame (10) with the opening facing downward. The bottom of the U-shaped frame (10) is fixed on the support platform (2).

6. A radial extrusion tube forming machine according to claim 1, characterized in that: A feeding hopper (19) is installed on one side of the support platform (2), and a guide groove (20) is installed at the bottom of the feeding hopper (19). The bottom of the guide groove (20) passes through the annular plate (4) and is placed inside the annular plate (4).

7. A radial extrusion tube forming machine according to claim 1, characterized in that: A limiting groove (21) is provided at the top center of the base (1), and the limiting groove (21) corresponds to the annular plate (4).

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