PVC pipe bending device

Abstract

The utility model discloses a PVC pipe bending device which comprises a connecting block, the top of the connecting block is fixedly connected with a fixing ring, the bottom of the fixing ring is provided with a working table, the top of the working table is fixedly connected with a heating box, the inner wall of the heating box is fixedly connected with a limiting plate, the interior of the limiting plate is movably connected with a soft plate, and the soft plate is fixedly connected with the inner wall of the working table. The heating box and the soft plate are designed, the air cylinder works to drive the soft plate fixedly connected with the air cylinder to move, the soft plate is limited and moved through the limiting plate, and a moving groove formed in one side of the heating box is sealed through the soft plate, so that heat flowing out of the moving groove is reduced; therefore, the heat loss of the bending assisting column in the working process is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pipe bending, in particular to a PVC pipe bending device. Background Art

[0002] PVC pipe is mainly composed of polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness and ductility. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive. It is a popular and widely used synthetic material in the world today. Its global usage ranks second among various synthetic materials. According to statistics, in 1995 alone, the production of PVC in Europe was about 5 million tons, and its consumption was 5.3 million tons. In Germany, the production and consumption of PVC are an average of 1.4 million tons. PVC pipe (divided into PVC-U pipe, PVC-M pipe and PVC-O pipe) is a rigid polyvinyl chloride pipe, which is made of polyvinyl chloride resin, stabilizer, lubricant, etc., and is extruded by hot pressing. It is the earliest developed and applied, and PVC pipes need to be bent in many places.

[0003] For example, a PVC pipe bending device disclosed in the utility model with authorization announcement number CN219006985U can use a telescopic cylinder as a driving force to enable the pressing frame to push the PVC pipe, thereby realizing the automatic bending operation, which effectively saves manpower and time, and is easy to operate. By rotating the threaded rod by the rotating block, the pressing plate can be moved downward to press the PVC pipe, so that the PVC pipe can be fixed, and the staff does not need to manually press the PVC pipe, which brings convenience to the staff. When bending the PVC pipe, only the part of the PVC pipe that is attached to the bending block is heated, resulting in uneven heating of the PVC pipe. When heating the PVC pipe, in the open air, a large amount of heat will be lost, resulting in unsatisfactory heating effect and low efficiency. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a PVC pipe bending device, which can solve the technical problems that when bending the PVC pipe, only the part of the PVC pipe that is close to the bending aid block is heated, resulting in uneven heating of the PVC pipe, and when heating the PVC pipe in the open air, a large amount of heat is lost, resulting in unsatisfactory heating effect and low efficiency.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a PVC pipe bending device, comprising a connecting block, a fixing ring is fixedly connected to the top of the connecting block, a workbench is arranged at the bottom of the fixing ring, a heating box is fixedly connected to the top of the workbench, a limiting plate is fixedly connected to the inner wall of the heating box, a soft plate is movably connected inside the limiting plate, a cylinder fixedly connected to the inner wall of the heating box is fixedly connected to one side of the soft plate, a movable groove is provided on one side of the arc of the heating box, a pair of bending-assisting columns are fixedly connected inside the heating box, and an entry hole is provided on the side of the heating box away from the movable groove.

[0006] As a preferred technical solution of the utility model, the bottom of the workbench is fixedly connected to a driving motor, the rotating end of the driving motor is fixedly connected to a screw rod, the outer side of the screw rod is sleeved with a moving block threadedly connected to it, and the moving block is fixedly connected to the connecting block.

[0007] As a preferred technical solution of the utility model, a bolt threadedly connected to the fixing ring is provided on the top of the fixing ring, and a meniscus is fixedly connected to the bottom of the bolt.

[0008] As a preferred technical solution of the utility model, a servo motor is fixedly connected to one side of the workbench, the rotating end of the servo motor is fixedly connected to a rotating plate, the top of the rotating plate is fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected to a pressure tube.

[0009] As a preferred technical solution of the utility model, four supporting legs are fixedly connected to the bottom of the workbench.

[0010] As a preferred technical solution of the utility model, balls are rotatably connected to the bending-assisting column at even intervals.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By designing a heating box and a soft plate, the cylinder drives the soft plate fixedly connected to it to move, the limit plate moves the soft plate, and the soft plate seals the moving groove opened on one side of the heating box, thereby reducing the heat outflow from the moving groove, thereby reducing the heat loss of the bending column during operation;

[0013] 2. A servo motor is designed to drive a rotating plate fixedly connected to its rotating end to rotate. The rotation of the rotating plate drives a connecting plate fixedly connected to it to rotate. The connecting plate drives an electric telescopic rod fixedly connected to it and a pressing tube fixedly connected to the electric telescopic rod to rotate. The PVC pipe is bent by the rotating pressing tube, thereby realizing the bending of the PVC pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural diagram of the utility model PVC pipe bending device;

[0015] Figure 2 This is a front structural diagram of the utility model PVC pipe bending device;

[0016] Figure 3 This is a right view structural diagram of the utility model PVC pipe bending device;

[0017] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the heating box of the PVC pipe bending device of the utility model;

[0018] Among them: 1. Connecting block; 2. Fixing ring; 3. Workbench; 4. Heating box; 5. Limiting plate; 6. Soft plate; 7. Cylinder; 8. Moving groove; 9. Driving motor; 10. Screw rod; 11. Moving block; 12. Bolt; 13. Meniscus; 14. Servo motor; 15. Rotating plate; 16. Connecting plate; 17. Electric telescopic rod; 18. Pressing tube; 19. Support leg; 20. Bending column; 21. Access hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] Example

[0021] Please refer to Figure 1-Figure 4As shown, the utility model provides a PVC pipe bending device, including a connecting block 1, a fixing ring 2 is fixedly connected to the top of the connecting block 1, and a bolt 12 threadedly connected to the fixing ring 2 is provided on the top of the fixing ring 2 by placing the PVC pipe inside the fixing ring 2. A meniscus 13 is fixedly connected to the bottom of the bolt 12, and movable grooves for the meniscus 13 to move are provided on both sides of the fixing ring 2. The meniscus 13 fixedly connected to the meniscus 13 is driven to move by rotating the bolt 12, and the PVC pipe placed inside the fixing ring 2 is fixed by the movement of the meniscus 13. A driving motor 9 is fixedly connected to the bottom of the workbench 3, and a screw rod 10 is fixedly connected to the rotating end of the driving motor 9. A moving block 11 threadedly connected to the screw rod 10 is sleeved on the outer side of the screw rod 10, and the moving block 11 is fixedly connected to the connecting block 1, and the screw rod 10 fixedly connected to the rotating end is driven by the driving motor 9 to move. Rotate, the moving block 11 threadedly connected to the screw rod 10 is driven to move, and the movement of the moving block 11 drives the connecting block 1 fixedly connected to the screw rod 11 to move, a workbench 3 is provided at the bottom of the fixed ring 2, a pair of bending-assisting columns 20 are fixedly connected inside the heating box 4, and balls are evenly spaced and rotatably connected to the bending-assisting columns 20, and the balls can reduce the friction between the PVC pipe and the bending-assisting columns 20, and the PVC pipe can be clamped and limited by the bending-assisting columns 20, and an entry hole 21 is provided on the side of the heating box 4 away from the moving groove 8, and the PVC pipe can be fed into the heating box 4 through the entry hole 21;

[0022] When the PVC pipe needs to be fixed, the PVC pipe to be bent is placed in the fixing ring 2, and the meniscus 13 fixedly connected to the fixing ring 2 is driven to move by rotating the bolt 12, and the PVC pipe placed inside the fixing ring 2 is fixed by the movement of the meniscus 13, and the screw rod 10 fixedly connected to the rotating end thereof is driven to rotate by the driving motor 9, and the moving block 11 threadedly connected to the fixing ring 2 is driven to move by the rotation of the screw rod 10, and the connecting block 1 fixedly connected to the fixing ring 2 is driven to move by the movement of the moving block 11, and the PVC pipe is fed into the heating box 4 from the entry hole 21, and the PVC pipe can be clamped and limited by the bending-assisting column 20;

[0023] As a further implementation of this embodiment, Figure 1-Figure 4As shown, a servo motor 14 is fixedly connected to one side of the connecting block 1, a rotating plate 15 is fixedly connected to the rotating end of the servo motor 14, a connecting plate 16 is fixedly connected to the top of the rotating plate 15, the servo motor 14 drives the rotating plate 15 fixedly connected to its rotating end to rotate, the rotation of the rotating plate 15 drives the connecting plate 16 fixedly connected to it to rotate, an electric telescopic rod 17 is fixedly connected to one side of the connecting plate 16, the output end of the electric telescopic rod 17 is fixedly connected to a pressing tube 18, four supporting legs 19 are fixedly connected to the bottom of the workbench 3, the pressing tube 18 fixedly connected to it is driven to move, the PVC pipe is fixed by the pressing tube 18, and then the electric telescopic rod 17 fixedly connected to it and the pressing tube 18 fixedly connected to the electric telescopic rod 17 are driven to rotate by the connecting plate 16, and the PVC pipe is bent by the rotating pressing tube 18;

[0024] When the PVC pipe needs to be bent, the electric telescopic rod 17 drives the pressing tube 18 fixedly connected thereto to move, and the pressing tube 18 is aligned with the PVC pipe placed between the bending-assisting columns 20, and then the part of the PVC pipe that is close to the bending-assisting columns 20 is heated. At this time, the servo motor 14 drives the rotating plate 15 fixedly connected to its rotating end to rotate, and the rotation of the rotating plate 15 drives the connecting plate 16 fixedly connected thereto to rotate, and then the connecting plate 16 drives the electric telescopic rod 17 fixedly connected thereto and the pressing tube 18 fixedly connected thereto to rotate, and the PVC pipe is bent by the rotating pressing tube 18;

[0025] As a further implementation of this embodiment, Figure 1-Figure 4 As shown, a heating box 4 is fixedly connected to the top of the workbench 3, and the heat loss is reduced by the heating box 4. A limiting plate 5 is fixedly connected to the inner wall of the heating box 4, and a soft plate 6 is movably connected inside the limiting plate 5. The soft plate 6 is limited and moved by the limiting plate 5. A cylinder 7 fixedly connected to the inner wall of the heating box 4 is fixedly connected to one side of the soft plate 6. A moving groove 8 is provided on one side of the arc of the heating box 4. The soft plate 6 fixedly connected to it is driven by the cylinder 7 to move, and the inside of the heating box 4 is sealed by the soft plate 6.

[0026] When it is necessary to reduce heat loss, the cylinder 7 is used to drive the soft plate 6 fixedly connected to it to move, the soft plate 6 is limited by the limit plate 5, and then the movable groove 8 opened on one side of the heating box 4 is sealed by the soft plate 6, thereby reducing the heat outflow from the movable groove 8 and ensuring the temperature inside the heating box 4.

[0027] Specific working principle:

[0028] When the PVC pipe needs to be fixed, the PVC pipe that needs to be bent is placed in the fixing ring 2, and the meniscus 13 is driven to move by rotating the bolt 12, and the PVC pipe placed inside the fixing ring 2 is fixed by the movement of the meniscus 13, and the screw rod 10 is driven to rotate by the driving motor 9, and the moving block 11 is driven to move by the rotation of the screw rod 10, and the connecting block 1 is driven to move by the movement of the moving block 11, and the PVC pipe is sent into the heating box 4 from the entry hole 21, and the PVC pipe can be clamped and limited by the bending-assisting column 20, and the pressing pipe 18 is driven to move by the electric telescopic rod 17, and the pressing pipe 18 is pressed The PVC pipe is accurately placed between the bending-assisting columns 20, and then the part of the PVC pipe that is close to the bending-assisting columns 20 is heated. At this time, the rotating plate 15 is driven to rotate by the servo motor 14, and the rotation of the rotating plate 15 drives the connecting plate 16 to rotate, and then the connecting plate 16 drives the electric telescopic rod 17 and the pressing tube 18 fixedly connected to the electric telescopic rod 17 to rotate, and the PVC pipe is bent by the rotating pressing tube 18, and the soft plate 6 is driven to move by the cylinder 7, and the soft plate 6 is limited and moved by the limit plate 5, and then the moving groove 8 opened on one side of the heating box 4 is sealed by the soft plate 6, so as to reduce the heat outflow from the moving groove 8 and ensure the temperature inside the heating box 4.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A PVC pipe bending device, comprising a connecting block (1), characterized in that: The top of the connecting block (1) is fixedly connected to a fixing ring (2), the bottom of the fixing ring (2) is provided with a workbench (3), the top of the workbench (3) is fixedly connected to a heating box (4), the inner wall of the heating box (4) is fixedly connected to a limiting plate (5), the inner part of the limiting plate (5) is movably connected to a soft plate (6), one side of the soft plate (6) is fixedly connected to a cylinder (7) fixedly connected to the inner wall of the heating box (4), a movable groove (8) is provided on one side of the arc of the heating box (4), a pair of bending-assisting columns (20) are fixedly connected inside the heating box (4), and an entry hole (21) is provided on the side of the heating box (4) away from the movable groove (8).

2. A PVC pipe bending device according to claim 1, characterized in that: The bottom of the workbench (3) is fixedly connected to a driving motor (9), the rotating end of the driving motor (9) is fixedly connected to a screw rod (10), the outer side of the screw rod (10) is sleeved with a moving block (11) threadedly connected thereto, and the moving block (11) is fixedly connected to the connecting block (1).

3. A PVC pipe bending device according to claim 1, characterized in that: The top of the fixing ring (2) is provided with a bolt (12) threadedly connected thereto, and the bottom of the bolt (12) is fixedly connected to a meniscus (13).

4. A PVC pipe bending device according to claim 1, characterized in that: A servo motor (14) is fixedly connected to one side of the workbench (3); a rotating end of the servo motor (14) is fixedly connected to a rotating plate (15); a top of the rotating plate (15) is fixedly connected to a connecting plate (16); one side of the connecting plate (16) is fixedly connected to an electric telescopic rod (17); and an output end of the electric telescopic rod (17) is fixedly connected to a pressure tube (18).

5. A PVC pipe bending device according to claim 1, characterized in that: Four supporting legs (19) are fixedly connected to the bottom of the workbench (3).

6. A PVC pipe bending device according to claim 1, characterized in that: Ball bearings are rotatably connected to the bending assistance column (20) at even intervals.

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