Roll forming equipment for PVC (Polyvinyl Chloride) corrugated pipe

Abstract

The utility model belongs to the technical field of corrugated pipe rolling, and particularly relates to PVC corrugated pipe rolling forming equipment which comprises a workbench, a top plate is fixedly installed on the top of the workbench through a supporting column, and an upper pressing plate and a lower pressing plate which are the same in size and are arranged in parallel are fixedly installed in the middle of the top plate and the middle of the workbench respectively. According to the PVC corrugated pipe rolling forming equipment, the top and the bottom of a PVC corrugated pipe can make contact with a heated rolling strip, in the rotating process of the PVC corrugated pipe, rolling work on the PVC corrugated pipe is achieved, a transmission lead screw continuously moves, when a sliding block moves to the rightmost side, rolling of the PVC corrugated pipe is completed, and after the PVC corrugated pipe is taken down, the transmission lead screw continuously moves; according to the design, the continuity of equipment production is improved, meanwhile, the phenomenon of burrs in the middle of the PVC corrugated pipe is avoided, and the production progress and quality of rolling forming of the PVC corrugated pipe are improved.

Description

Technical Field

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

[0002] PVC corrugated pipe is a corrugated pipe made of polyvinyl chloride. It is commonly used for drainage, sewage discharge, wire and cable protection and other industrial and construction applications. PVC corrugated pipe has good chemical resistance and can withstand the erosion of various acids, alkalis and solvents, making it more reliable in corrosive environments.

[0003] The patent with the authorization announcement number CN220995423U discloses a PVC corrugated pipe roll forming equipment, including a support table, and the top surface of the support table is provided with a hot air box. The utility model drives the second transmission belt through the second motor, so that the shaping component first enters the preheating box for preheating, and then further heats the hot air box, and uses the side brush component to clean the shaping component. After the PVC pipe is introduced into the shaping component, it can be rolled and shaped in the forming channel formed by the two sets of cyclic rolling mechanisms at the same time to form a corrugated pipe structure, and then the formed corrugated pipe is exported to the outside of the hot air box for cooling and shaping. The whole cyclic rolling forming process is simple, and the stability of the PVC corrugated pipe forming is guaranteed, and the forming efficiency is improved. In the above patent, the structure is relatively complex. During the rolling forming process, the corrugated pipe is rolled and formed by multiple continuously moving forming dies on both sides of the corrugated pipe, and there is a gap between the adjacent forming dies. The corrugated pipe will produce burrs after heating and cooling, resulting in defects in the PVC corrugated pipe after roll forming, affecting the final production progress and the quality of the finished product. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a PVC corrugated pipe roll forming device to solve the existing problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PVC corrugated pipe rolling forming equipment, comprising a workbench, a top plate is fixedly installed on the top of the workbench through a supporting column, an upper pressing plate and a lower pressing plate of the same size and arranged in parallel are fixedly installed in the middle position between the top plate and the workbench, the inner sides of the upper pressing plate and the lower pressing plate are both installed with evenly distributed electric heating wires, and rolling strips are fixedly installed on the side where the upper pressing plate and the lower pressing plate are close to each other, and there are multiple rolling strips distributed on the surface of the upper pressing plate and the lower pressing plate at equal intervals from left to right, a sliding groove is opened on the top of the workbench and on the side of the lower pressing plate, a rolling mechanism is slidably installed on the inner side of the sliding groove, and the corrugated pipe body is installed on the side of the rolling mechanism.

[0006] As a preferred technical solution of the utility model, a first motor is fixedly installed at the inner corner of the sliding groove, one end of a transmission screw is fixedly installed at the output end of the first motor, the other end of the transmission screw is rotatably installed on the inner side of the sliding groove, and the rolling mechanism includes a sliding block slidably installed on the inner side of the sliding groove, and the transmission screw is threadedly inserted on the inner side of the sliding block.

[0007] As a preferred technical solution of the utility model, the rolling mechanism also includes a positioning seat fixedly installed on the top of the sliding block, a second motor is fixedly installed on the inner side of the positioning seat, and a positioning rod is fixedly installed on the output end of the second motor.

[0008] As a preferred technical solution of the utility model, a fixed positioning ring is fixedly installed at one end of the positioning rod, and a rotating positioning ring is threadedly sleeved on the side surface of the other end of the positioning rod.

[0009] As a preferred technical solution of the utility model, a limiting ring is fixedly sleeved at equal intervals in the middle position of the positioning rod.

[0010] As a preferred technical solution of the utility model, the position and number of the limit rings match the rolling strips and are staggeredly distributed on the inner and outer sides of the corrugated pipe body.

[0011] As a preferred technical solution of the utility model, the heating wire is installed on the left side of the upper pressing plate and the lower pressing plate, a forming groove is opened on the top right side of the upper pressing plate, and a plurality of longitudinally distributed fan assemblies are fixedly installed on the inner side of the forming groove. The fan assembly includes a fixed frame fixedly installed in the forming groove and a fan installed in the fixed frame, and an isolation net is fixedly installed on the top of the fixed frame.

[0012] Compared with the prior art, the utility model provides a PVC corrugated pipe roll forming device, which has the following beneficial effects:

[0013] 1. This PVC corrugated pipe rolling forming equipment can synchronously rotate while the PVC corrugated pipe moves horizontally, so that the PVC corrugated pipe will gradually contact and be located between the lower pressure plate and the upper pressure plate, and the top and bottom of the PVC corrugated pipe will contact the heated rolling strip. During the rotation of the PVC corrugated pipe, the rolling of the PVC corrugated pipe is realized, and the transmission screw rod moves continuously. When the sliding block moves to the far right, the rolling of the PVC corrugated pipe is completed. After being removed, the transmission screw rod continues to move, driving the sliding block and the positioning rod to reset, and continue the next rolling work. Such a design avoids the phenomenon of burrs in the middle position of the PVC corrugated pipe, and improves the production progress and quality of PVC corrugated pipe rolling forming.

[0014] 2. This PVC corrugated pipe roll-forming equipment fits the outer side of the limit ring to the inner side of the PVC corrugated pipe. In this way, the limit ring provides support for the PVC corrugated pipe at a position where the PVC corrugated pipe does not contact the rolling strip, thereby preventing the PVC corrugated pipe from deforming during the rolling process and further improving the quality of the PVC corrugated pipe after rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the surface structure distribution of the lower pressing plate of the utility model;

[0017] Figure 3 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 4 This is a schematic diagram of the structure distribution near the positioning rod of the utility model.

[0019] In the figure: 1. workbench; 11. lower pressure plate; 12. sliding groove; 13. first motor; 14. transmission screw; 15. sliding block; 2. top plate; 21. upper pressure plate; 22. forming groove; 3. positioning seat; 31. second motor; 32. positioning rod; 33. fixed positioning ring; 34. rotating positioning ring; 35. limiting ring; 4. rolling strip; 5. support column; 6. bellows body; 7. fixed frame; 71. isolation net. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0021] See also Figure 1-4In this embodiment: a PVC corrugated pipe roll-forming equipment comprises a workbench 1, a top plate 2 is fixedly installed on the top of the workbench 1 through a support column 5, an upper pressing plate 21 and a lower pressing plate 11 of the same size and arranged in parallel are fixedly installed in the middle position of the top plate 2 and the workbench 1, and evenly distributed electric heating wires are installed on the inner sides of the upper pressing plate 21 and the lower pressing plate 11, and rolling strips 4 are fixedly installed on the side where the upper pressing plate 21 and the lower pressing plate 11 are close to each other, and there are multiple rolling strips 4 and they are evenly spaced from left to right on the surface of the upper pressing plate 21 and the lower pressing plate 11, a sliding groove 12 is opened on the top of the workbench 1 and on the side of the lower pressing plate 11, a rolling mechanism is slidably installed on the inner side of the sliding groove 12, and a corrugated pipe body 6 is installed on the side of the rolling mechanism.

[0022] As a preferred embodiment, Figure 2 As shown, a first motor 13 is fixedly installed at the inner corner of the sliding groove 12, one end of a transmission screw 14 is fixedly installed at the output end of the first motor 13, and the other end of the transmission screw 14 is rotatably installed on the inner side of the sliding groove 12. The rolling mechanism includes a sliding block 15 slidably installed on the inner side of the sliding groove 12, and the transmission screw 14 is threadedly inserted on the inner side of the sliding block 15. The sliding groove 12 provides a smooth space for the movement of the sliding block 15. The transmission screw 14 will drive the sliding block 15 to reciprocate at a uniform speed, thereby driving the PVC corrugated pipe to complete the rolling work.

[0023] As a preferred embodiment, Figure 1 and Figure 4 As shown, the rolling mechanism also includes a positioning seat 3 fixedly installed on the top of the sliding block 15, a second motor 31 is fixedly installed on the inner side of the positioning seat 3, and a positioning rod 32 is fixedly installed on the output end of the second motor 31. The second motor 31 can drive the positioning rod 32 and the PVC corrugated pipe to rotate, so that the PVC corrugated pipe can rotate between the rolling strips 4 distributed on the upper and lower sides to realize the rolling work of the PVC corrugated pipe.

[0024] When in use, the electric heating wire is connected to an external power supply to heat the lower pressing plate 11 and the upper pressing plate 21, and the rolling strip 4 is also heated. The PVC corrugated tube to be roll-formed is sleeved on the outer side of the positioning rod 32, and the PVC corrugated tube is fixed on the outer side of the positioning rod 32 by the cooperation of the fixed positioning ring 33 and the rotating positioning ring 34. The first motor 13 and the second motor 31 are started, and under the movement of the transmission screw 14 and the positioning rod 32, the sliding block 15 slides in the sliding groove 12, and the PVC corrugated tube will rotate synchronously while moving horizontally, so that the PVC corrugated tube will gradually contact and be located between the lower pressing plate 11 and the upper pressing plate 2 1, and the top and bottom of the PVC corrugated tube will contact the heated rolling strip 4. During the rotation of the PVC corrugated tube, the rolling of the PVC corrugated tube is realized, and the transmission screw 14 moves continuously. When the sliding block 15 moves to the rightmost side, the rolling of the PVC corrugated tube is completed. After removal, the transmission screw 14 continues to move, driving the sliding block 15 and the positioning rod 32 to reset and continue the next rolling work. Such a design not only improves the continuity of equipment production, but also prevents burrs from appearing in the middle of the PVC corrugated tube, thereby improving the production progress and quality of PVC corrugated tube rolling forming. Example

[0025] See also Figure 1-4 In this embodiment: a fixed positioning ring 33 is fixedly installed at one end of the positioning rod 32, and a rotating positioning ring 34 is threadedly sleeved on the side of the other end of the positioning rod 32, so that the PVC corrugated pipe can be fixed to the outside of the positioning rod 32 by the fixed positioning ring 33 and the rotating positioning ring 34.

[0026] As a preferred embodiment, Figure 4 As shown, the middle position of the positioning rod 32 is fixedly sleeved with a limiting ring 35 at equal intervals, and the outer side of the limiting ring 35 fits against the inner side of the PVC corrugated tube. In this way, when the PVC corrugated tube is not in contact with the rolling strip 4, the limiting ring 35 provides support for it, thereby preventing the PVC corrugated tube from deforming during the rolling process, and further improving the quality of the PVC corrugated tube after rolling.

[0027] As a preferred embodiment, the position and number of the limit rings 35 match the rolling strips 4 and are staggered on the inner and outer sides of the corrugated tube body 6. In this way, the rolling strips 4 and the limit rings 35 can be staggered with each other, making the forming of the PVC corrugated tube more precise and improving the structural stability of the PVC corrugated tube during the rolling process.

[0028] As a preferred embodiment, Figure 1As shown, the heating wire is installed on the left side of the upper pressing plate 21 and the lower pressing plate 11, and a molding groove 22 is opened on the top right side of the upper pressing plate 21. A plurality of longitudinally distributed fan assemblies are fixedly installed on the inner side of the molding groove 22. The fan assembly includes a fixed frame 7 fixedly installed in the molding groove 22 and a fan installed in the fixed frame 7. An isolation net 71 is fixedly installed on the top of the fixed frame 7. When the PVC corrugated tube first moves from left to right, the heating wire heats it, and the rolling strip 4 rolls and deforms it. When the PVC corrugated tube rolls to the right side, the rolling deformation is completed, and the fan starts to dissipate heat for it. When the PVC corrugated tube is rolling, the fan can perform all-round heat dissipation and shaping on the PVC corrugated tube to ensure the shaping effect of the PVC corrugated tube after rolling.

[0029] The working principle and use process of the utility model are as follows: the operator starts the first motor 13 and the second motor 31, and under the movement of the transmission screw 14 and the positioning rod 32, the sliding block 15 slides in the sliding groove 12, and the PVC corrugated tube will rotate synchronously while moving horizontally, so that the PVC corrugated tube will gradually contact and be located between the lower pressure plate 11 and the upper pressure plate 21, and the top and bottom of the PVC corrugated tube will contact the heated rolling strip 4. During the rotation of the PVC corrugated tube, the rolling of the PVC corrugated tube is realized, and the transmission screw 14 moves continuously. When the sliding block 15 moves to the far right, the rolling of the PVC corrugated tube is completed. After being removed, the transmission screw 14 continues to move, driving the sliding block 15 and the positioning rod 32 to reset, and continue the next rolling work. Such a design not only improves the continuity of equipment production, but also prevents burrs from appearing in the middle position of the PVC corrugated tube, thereby improving the production progress and quality of PVC corrugated tube rolling forming.

[0030] Finally, it should be noted that the above are only preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A PVC corrugated pipe roll forming device, comprising a workbench (1), characterized in that: A top plate (2) is fixedly mounted on the top of the workbench (1) via a support column (5); an upper pressing plate (21) and a lower pressing plate (11) of the same size and arranged in parallel are fixedly mounted in the middle of the top plate (2) and the workbench (1), respectively; evenly distributed electric heating wires are mounted on the inner sides of the upper pressing plate (21) and the lower pressing plate (11); rolling strips (4) are fixedly mounted on the sides of the upper pressing plate (21) and the lower pressing plate (11) close to each other; a plurality of rolling strips (4) are evenly spaced from left to right on the surfaces of the upper pressing plate (21) and the lower pressing plate (11); a sliding groove (12) is provided on the top of the workbench (1) and on the side of the lower pressing plate (11); a rolling mechanism is slidably mounted on the inner side of the sliding groove (12); a bellows body (6) is mounted on the side of the rolling mechanism.

2. The PVC corrugated pipe roll forming equipment according to claim 1, characterized in that: A first motor (13) is fixedly mounted at an inner corner of the sliding groove (12); one end of a transmission screw (14) is fixedly mounted at an output end of the first motor (13); the other end of the transmission screw (14) is rotatably mounted on the inner side of the sliding groove (12); the rolling mechanism comprises a sliding block (15) slidably mounted on the inner side of the sliding groove (12); and the transmission screw (14) is threadedly inserted on the inner side of the sliding block (15).

3. The PVC corrugated pipe roll forming equipment according to claim 2, characterized in that: The rolling mechanism further comprises a positioning seat (3) fixedly mounted on the top of the sliding block (15), a second motor (31) being fixedly mounted on the inner side of the positioning seat (3), and a positioning rod (32) being fixedly mounted on the output end of the second motor (31).

4. The PVC corrugated pipe roll forming equipment according to claim 3, characterized in that: A fixed positioning ring (33) is fixedly mounted on one end of the positioning rod (32), and a rotating positioning ring (34) is threadedly sleeved on the side surface of the other end of the positioning rod (32).

5. The PVC corrugated pipe roll forming equipment according to claim 3, characterized in that: The middle position of the positioning rod (32) is fixedly sleeved with a limiting ring (35) at equal intervals.

6. The PVC corrugated pipe roll forming equipment according to claim 5, characterized in that: The position and number of the limiting rings (35) match those of the rolling strips (4) and are staggeredly distributed on the inner and outer sides of the bellows body (6).

7. The PVC corrugated pipe roll forming equipment according to claim 1, characterized in that: The heating wire is installed on the left side of the upper pressing plate (21) and the lower pressing plate (11); a forming groove (22) is provided on the right side of the top of the upper pressing plate (21); a plurality of longitudinally distributed fan assemblies are fixedly installed on the inner side of the forming groove (22); the fan assembly comprises a fixing frame (7) fixedly installed in the forming groove (22) and a fan installed in the fixing frame (7); an isolation net (71) is fixedly installed on the top of the fixing frame (7).

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