PVC pipe bending device

Abstract

The utility model discloses a PVC pipe bending device which comprises a bending base, bending rollers are arranged on the inner walls of two first limiting sliding grooves in a sliding mode, electric telescopic rods are fixedly arranged on one sides of the inner walls of the two first limiting sliding grooves, limiting blocks are arranged on the inner walls of two second limiting sliding grooves in a sliding mode, and fixing bolts are arranged at the top ends of the two limiting blocks in a penetrating mode. Air boxes are fixedly arranged on the edges of the other two sides of the top end of the bent base, and a plurality of air blowers are arranged in the two air boxes at equal intervals. According to the pipeline bending device, the electric telescopic rod is started to enable the bending roller to move in the opposite direction in the first limiting sliding groove to bend a pipeline, the moving distances are different, and the bending degrees of bending are different, so that the bending degrees of the pipeline are conveniently controlled; and the air blower in the air bellow is started to blow air to the surface of the pipeline through the air outlet grooves at the two ends to quickly cool and shape the pipeline, and then the pipeline is taken out and the spring is pulled out, so that the production efficiency is improved while the processing cost is reduced.

Description

Technical Field

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

[0002] The main component of PVC pipe is polyvinyl chloride, and other components 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. When using PVC pipes, when connecting two corners or two pipes with a height difference, the middle connecting PVC pipe is usually bent and then installed between the two PVC pipes to connect the pipes. When bending PVC pipes, such bending devices play a very important role.

[0003] In view of this, Chinese Patent No. CN220075551U proposes a PVC pipe bending device. The utility model uses the cooperation of rectangular block 1, rectangular groove 1 and moving block to assist the PVC pipe in the process of heating and bending the PVC pipe, so that the PVC pipe can be bent in a predetermined direction, thereby ensuring the bending effect of the PVC pipe. In addition, the cooperation of rectangular block 2, screw rod and moving block enables the device to adjust the position of the two sets of guide components from the bending device according to the bending angle of the PVC pipe. However, the above bending device is difficult to bend the PVC pipe. When bending, since there is no supporting structure inside the pipe, the stress-bending area will be squeezed more, affecting the use and aesthetics. The method of inserting springs is the best way to ensure the roundness of PVC pipes during bending operations. However, the existing bending operation method of inserting springs uses a fixed bending mold, inserts the springs in the heated and softened PVC, and then places it on the bending mold to obtain a bent shape after cooling. The bending degree of this method is consistent. If the bending degree needs to be changed, the bending mold needs to be replaced, which increases the cost. At the same time, the cooling speed is slow, which reduces production efficiency. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a PVC pipe bending device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model proposes a PVC pipe bending device, comprising a bending base, wherein an automatic bending and extrusion mechanism with a cooling function is arranged at the upper end of the bending base;

[0006] The automatic bending and extrusion mechanism with cooling function includes a first limiting slide groove opened on both sides of the top of the bending base, the inner walls of the two first limiting slide grooves are slidably provided with bending rollers, one side of the inner walls of the two first limiting slide grooves is fixedly provided with an electric telescopic rod, and the output ends of the two electric telescopic rods are respectively fixedly connected to one side of the two bending rollers, and second limiting slide grooves are opened at the edges on both sides of the top of the bending base, and the inner walls of the two second limiting slide grooves are slidably provided with limiting blocks, and the tops of the two limiting blocks are interspersed with fixing bolts, and the edges on the other two sides of the top of the bending base are fixedly provided with bellows, and multiple blowers are evenly arranged inside the two bellows.

[0007] In one example, a plurality of air outlet slots are evenly spaced on one side of the two bellows, and a first dustproof net is fixedly provided on the edge of one side of the inner wall of the two bellows.

[0008] In one example, a support frame is fixedly provided on the top of the bending base, a third limiting sliding groove is opened in the middle position of the top of the support frame, and a movable base is slidably provided on the inner wall of the third limiting sliding groove.

[0009] In one example, a plurality of hot air blowers are arranged at equal distances inside the movable base, a rack is inserted into one side of the support frame, and one end of the rack passes through the inner wall of the third limiting sliding groove and is fixedly connected to one side of the movable base.

[0010] In one example, a gear is rotatably provided at the upper end of one side of the support frame, and the outer wall of the gear is meshed with the outer wall of the rack. A motor is fixedly provided at one side of the top end of the support frame, and one end of the gear is fixedly connected to the output end of the motor.

[0011] In one example, a second dustproof net is fixedly provided on the upper end of the inner wall of the mobile base, and a plurality of air outlet holes are opened at equal distances at the bottom of the mobile base.

[0012] In one example, a switch panel is fixedly provided on one side of the bending base, and the electric telescopic rod, the blower, the hot air blower and the motor are electrically connected to an external power supply through the switch panel.

[0013] The PVC pipe bending device proposed by the utility model can bring the following beneficial effects:

[0014] 1. A PVC pipe bending device starts the electric telescopic rod to make the bending roller move in the opposite direction in the first limit slide groove to bend it, and the bending degree is different with the moving distance, which is convenient for controlling the bending degree of the pipe. After the bending is completed, the blower in the bellows is started to blow air through the air outlet slots at both ends onto the surface of the pipe to quickly cool and shape it, and then it can be taken out and the spring can be pulled out, which reduces the processing cost and improves the production efficiency.

[0015] 2. This PVC pipe bending device, after limiting the pipe by the limiting block, starts the hot air blower to heat the pipe surface through the air outlet at the bottom of the movable base, and starts the motor to make the gear mesh with the rack. The rack drives the movable base to slide back and forth in the third limiting slide groove so that the surface of the pipe is evenly heated and softened. The staff does not need to hold a hot air gun to perform the softening operation, which reduces the staff's workload and improves the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model capable of adjusting the bending degree of the pipeline;

[0019] Figure 3 This is a schematic diagram of the structure of the connection between the support frame and the rack etc. of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the bottom of the mobile base of the utility model.

[0021] In the figure: 1. bending base; 2. first limit slide; 3. bending roller; 4. electric telescopic rod; 5. second limit slide; 6. limit block; 7. bellows; 8. blower; 9. air outlet; 10. first dustproof net; 11. support frame; 12. third limit slide; 13. movable base; 14. hot air blower; 15. rack; 16. gear; 17. motor; 18. second dustproof net; 19. air outlet. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the utility model, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0023] The examples are as follows:

[0024] The utility model provides Figure 1-4 A PVC pipe bending device shown includes a bending base 1, and an automatic bending and extrusion mechanism with a cooling function is provided at the upper end of the bending base 1;

[0025] The automatic bending and extrusion mechanism with cooling function comprises a first limiting slide 2 opened on both sides of the top of the bending base 1, the inner walls of the two first limiting slides 2 are slidably provided with bending rollers 3, one side of the inner walls of the two first limiting slides 2 are fixedly provided with an electric telescopic rod 4, and the output ends of the two electric telescopic rods 4 are respectively fixedly connected to one side of the two bending rollers 3, and the edges of the two sides of the top of the bending base 1 are opened with a second limiting slide 5, the inner walls of the two second limiting slides 5 are slidably provided with a limiting block 6, the tops of the two limiting blocks 6 are interspersed with a fixing bolt, and the edges of the other two sides of the top of the bending base 1 are fixedly provided with a bellows 7, and a plurality of blowers 8 are evenly arranged inside the two bellows 7, and the two limiting blocks 6 and the second limiting slide 5 are respectively arranged at one end of the middle position of both sides of the bending base 1, so that when the PVC pipe is placed in the middle position and is squeezed and bent to both sides by the bending rollers 3, the two limiting blocks 6 just hold its two ends, and when the lengths of the pipes are different, the limiting blocks 6 are slid in the second limiting slide 5 so that they always contact the two ends of the pipe.

[0026] A plurality of air outlet slots 9 are evenly spaced on one side of the two wind boxes 7, and a first dustproof net 10 is fixedly provided on the edge of one side of the inner wall of the two wind boxes 7. Each air outlet slot 9 is tilted downward, so that the wind flow can fully blow on the surface of the pipe, thereby improving the cooling efficiency;

[0027] Furthermore, a support frame 11 is fixedly provided on the top of the bending base 1 , a third limiting sliding groove 12 is opened in the middle position of the top of the support frame 11 , and a movable base 13 is slidably provided on the inner wall of the third limiting sliding groove 12 .

[0028] A plurality of hot air blowers 14 are arranged at equal distances inside the mobile base 13, a rack 15 is inserted on one side of the support frame 11, and one end of the rack 15 passes through the inner wall of the third limiting slide groove 12 and is fixedly connected to one side of the mobile base 13, and the two ends of the bottom of the support frame 11 are respectively connected to the edges of both sides of the top of the bending base 1, and the third limiting slide groove 12 at its upper end is located directly above the bending base 1. After the PVC pipe is placed, the hot air blower 14 slides back and forth in the third limiting slide groove 12 to blow air on the surface of the pipe to soften it;

[0029] Furthermore, a gear 16 is rotatably provided at the upper end of one side of the support frame 11, and the outer wall of the gear 16 is meshed with the outer wall of the rack 15, a motor 17 is fixedly provided on one side of the top of the support frame 11, and one end of the gear 16 is fixedly connected to the output end of the motor 17, and the motor 17 is a servo motor 17, which can drive the gear 16 to rotate in both directions, and the movable base 13 is limited by the third limiting slide groove 12 while sliding with it, so that when the rack 15 is driven by meshing, the movable base 13 slides back and forth stably in the third limiting slide groove 12 without deviation.

[0030] A second dustproof net 18 is fixedly provided at the upper end of the inner wall of the movable base 13, and a plurality of air outlet holes 19 are equidistantly provided at the bottom of the movable base 13. The first dustproof net 10 and the second dustproof net 18 respectively provide dustproof protection when the blower 8 and the hot air blower 14 are working.

[0031] Working principle: When using the PVC pipe bending device in the present design, firstly, the bending spring needs to be inserted into the PVC pipe to be bent, and then according to its length, the limit block 6 is slid in the second limit slide 5 so that it can fully limit the two ends of the pipe. After the position is adjusted, the fixing bolt is tightened to fix it and then the PVC pipe is placed in it. After the hot air blower 14 at the upper end softens the pipe, the electric telescopic rod 4 is started to make the bending roller 3 move in the opposite direction in the first limit slide 2 to bend it, and the bending degree is different with the moving distance, which is convenient for controlling the bending degree of the pipe. After the bending is completed, the drum in the bellows 7 is started The fan 8 blows air through the air outlet slots 9 at both ends onto the surface of the pipe to quickly cool it down and set it, and then it can be taken out and the spring can be pulled out, which reduces the processing cost and improves the production efficiency. When softening the PVC pipe, after limiting the pipe by the limit block 6, the hot air blower 14 is started to heat the pipe surface through the air outlet hole 19 at the bottom of the mobile base 13, and the motor 17 is started to make the gear 16 mesh with the rack 15. The rack 15 brings the mobile base 13 to slide back and forth in the third limiting slide groove 12 so that the surface of the pipe is evenly heated and softened. There is no need for the staff to hold a hot air gun to perform the softening operation, which reduces the workload of the staff and improves the convenience of using the device.

[0032] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0033] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A PVC pipe bending device, comprising a bending base (1), characterized in that: An automatic bending and extrusion mechanism with a cooling function is provided at the upper end of the bending base (1); The automatic bending and extrusion mechanism with cooling function comprises first limiting slide grooves (2) provided on both sides of the top of the bending base (1), the inner walls of the two first limiting slide grooves (2) are slidably provided with bending rollers (3), one side of the inner walls of the two first limiting slide grooves (2) are fixedly provided with electric telescopic rods (4), and the output ends of the two electric telescopic rods (4) are respectively fixedly connected to one side of the two bending rollers (3), the edges of both sides of the top of the bending base (1) are provided with second limiting slide grooves (5), the inner walls of the two second limiting slide grooves (5) are slidably provided with limiting blocks (6), the tops of the two limiting blocks (6) are interspersed with fixing bolts, the edges of the other two sides of the top of the bending base (1) are fixedly provided with bellows (7), and a plurality of blowers (8) are evenly arranged inside the two bellows (7).

2. A PVC pipe bending device according to claim 1, characterized in that: A plurality of air outlet slots (9) are evenly spaced on one side of the two wind boxes (7), and a first dustproof net (10) is fixedly provided on the edge of one side of the inner wall of the two wind boxes (7).

3. A PVC pipe bending device according to claim 1, characterized in that: A support frame (11) is fixedly provided at the top of the bending base (1), a third limiting sliding groove (12) is provided at the middle position of the top of the support frame (11), and a movable base (13) is slidably provided on the inner wall of the third limiting sliding groove (12).

4. A PVC pipe bending device according to claim 3, characterized in that: A plurality of hot air blowers (14) are arranged at equal distances inside the movable base (13); a rack (15) is inserted into one side of the support frame (11); and one end of the rack (15) passes through the inner wall of the third limiting sliding groove (12) and is fixedly connected to one side of the movable base (13).

5. A PVC pipe bending device according to claim 4, characterized in that: A gear (16) is rotatably provided at the upper end of one side of the support frame (11), and the outer wall of the gear (16) is meshed with the outer wall of the rack (15); a motor (17) is fixedly provided at one side of the top end of the support frame (11), and one end of the gear (16) is fixedly connected to the output end of the motor (17).

6. A PVC pipe bending device according to claim 4, characterized in that: A second dustproof net (18) is fixedly provided at the upper end of the inner wall of the movable base (13), and a plurality of air outlet holes (19) are provided at equal distances at the bottom of the movable base (13).

7. A PVC pipe bending device according to claim 5, characterized in that: A switch panel is fixedly provided on one side of the bending base (1), and the electric telescopic rod (4), the blower (8), the hot air blower (14) and the motor (17) are all electrically connected to an external power source via the switch panel.

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