Pipe thermoplastic bending device

Abstract

The utility model relates to the technical field of pipe machining, in particular to a pipe thermoplastic bending device which comprises a base and a clamping mechanism. Two cylinder bodies which are symmetrically distributed are arranged above the base; the clamping mechanism comprises two clamping plates arranged in the cylinder, a threaded sleeve arranged on the cylinder, a threaded rod in threaded connection with the threaded sleeve, a connecting base arranged on the clamping plates, a clamping ring, a rotating wheel and two guide rods, wherein the clamping ring and the rotating wheel are arranged at the two ends of the threaded rod respectively, and the guide rods are distributed on the clamping plates left and right. The two clamping plates are in an arc shape and are symmetrically distributed, the clamping ring is rotationally arranged in the connecting base, and the guide rod penetrates through and is slidably connected to the barrel. According to the pipe bending device, the pipe can be kept stable in the bending process, the clamping mechanism can be matched with the bending device to conduct corresponding deflection, and the machining quality of the pipe is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe material processing technical field especially, is a kind of pipe material hot plastic bending device. BACKGROUND

[0002] The main role of pipe material hot plastic bending is to make pipe material keep its original performance while obtaining the required shape to adapt to specific application requirements. Hot plastic bending is a process that softens pipe material by heating and then bends it into the required shape by applying external force.

[0003] Chinese patent with publication number CN221584507U discloses a plastic pipe hot bending device, which comprises a processing base and a hot bending mechanism arranged on the top of the processing base. The top of the processing base is provided with two groups of symmetrical stable components for fixing the plastic pipe. The stable component comprises a mounting plate fixedly installed on the top of the processing base. An active slot is formed in the side surface of the mounting plate. A turntable is movably arranged in the active slot. A slip ring is fixedly connected to the outer ring side of the turntable. A sliding groove matching the slip ring is formed in the inner wall of the active slot. Two arc-shaped grooves are formed in the inside of the turntable and distributed along the center of the turntable. Two symmetrical connecting plates are movably arranged on the side surface of the turntable. A positioning plate is fixedly connected to the side surface of the mounting plate. The device can clamp and fix the two ends of the plastic pipe through the clamping ring of the stable component, preventing the plastic pipe from shaking during the hot bending process and affecting the hot bending effect of the plastic pipe.

[0004] However, the above technical solution has the following disadvantages: although the device can limit the two ends of the pipe, the clamping ring of the stable component cannot rotate, but the end of the pipe is affected by the clamping ring during the bending process, resulting in obvious non-recoverable creases on the pipe, which reduces the production and processing quality of the pipe. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a pipe material hot plastic bending device that not only keeps the pipe stable during bending but also allows the clamping mechanism to cooperate with the press bending device for corresponding deflection, ensuring the processing quality of the pipe.

[0006] The technical solution of the utility model is a pipe material hot plastic bending device, which comprises a base and a clamping mechanism. Two symmetrical cylinders are arranged above the base. The clamping mechanism comprises two clamping plates arranged inside the cylinders, a threaded sleeve arranged on the cylinder, a threaded rod threadedly connected with the threaded sleeve, a connecting seat arranged on the clamping plate, a clamping ring and a rotating wheel arranged at both ends of the threaded rod, and two guide rods arranged on the clamping plate. The two clamping plates are arc-shaped and symmetrically distributed. The clamping ring is rotatably arranged in the connecting seat. The guide rods penetrate and are slidably connected to the cylinder.

[0007] Preferably, the cylinder is provided with heating rings, and the heating rings are connected with heat bending sleeves which can be freely stretched and bent.

[0008] Preferably, the base is provided with a support frame, and the support frame is provided with a horizontal plate and a bending device, and the horizontal plate is provided with an adjusting assembly for connecting the cylinder.

[0009] Preferably, the bending device comprises a mounting plate, two fixing seats arranged on the support frame, a sliding block slidingly connected to the fixing seat, a moving frame arranged on the sliding block, a motor arranged on the moving frame, a lead screw drivingly connected to the motor, and a bearing, a pressing wheel and two sliding rods arranged on the mounting plate; the lead screw is threadedly connected to the horizontal plate, the bottom end of the lead screw is connected to the inner ring of the bearing, and the sliding rods are slidingly connected to the horizontal plate.

[0010] Preferably, the fixing seat is provided with a guide groove for vertical sliding of the sliding block.

[0011] Preferably, the sliding rods are sleeved with springs, and the two ends of the springs are arranged on the horizontal plate and the mounting plate respectively.

[0012] Preferably, the adjusting assembly comprises a connecting frame rotatably connected to the cylinder, a connecting rod arranged on the connecting frame, a mounting block arranged on the connecting rod, and a bolt threadedly connected to the mounting block and the horizontal plate; the horizontal plate is provided with a plurality of positioning holes for threadedly connecting the bolt.

[0013] Compared with the prior art, the utility model has the beneficial technical effects that:

[0014] The clamping mechanism and the adjusting assembly can clamp pipe materials of different lengths and diameters, improve the application range of the device, prevent the pipe materials from shaking during bending, ensure the stability of bending processing, avoid obvious and unrecoverable folds at the clamping position of the pipe materials, and are simple and convenient to operate, and have good practicability. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is a sectional structure schematic view of the cylinder of the utility model;

[0017] Figure 3 It is a sectional structure schematic view of the cylinder of the utility model; Figure 2 It is a structure enlarged schematic view of A in the middle;

[0018] Figure 4 It is a partial structure schematic view of the bending device of the utility model.

[0019] Reference numerals: 1. Cylinder; 2. Heating ring; 3. Hot bending sleeve; 4. Clamping plate; 5. Threaded rod; 6. Connecting seat; 7. Snap ring; 8. Threaded sleeve; 9. Rotary wheel; 10. Guide rod; 11. Base; 12. Support frame; 13. Horizontal plate; 14. Mounting block; 15. Connecting rod; 16. Connecting frame; 17. Bolt; 18. Positioning hole; 19. Fixed seat; 20. Moving frame; 21. Slider; 22. Guide groove; 23. Motor; 24. Lead screw; 25. Mounting plate; 26. Bearing; 27. Slide rod; 28. Pressure roller; 29. ​​Spring. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-4 As shown, the pipe thermoplastic bending device proposed in this embodiment includes a base 11 and a clamping mechanism; two symmetrically distributed cylinders 1 are arranged above the base 11, and heating rings 2 are arranged on the cylinders 1. A hot bending sleeve 3 is connected between the heating rings 2. The hot bending sleeve 3 can be freely extended and bent. The pipe can be heated by the heating rings 2 and the hot bending sleeve 3 so that the pipe can be bent in the future.

[0022] The clamping mechanism includes two clamping plates 4 disposed inside the cylinder 1, a threaded sleeve 8 disposed on the cylinder 1, a threaded rod 5 threadedly connected to the threaded sleeve 8, a connecting seat 6 disposed on the clamping plate 4, a retaining ring 7 and a rotating wheel 9 disposed at both ends of the threaded rod 5, and two guide rods 10 distributed on the left and right sides of the clamping plate 4; the two clamping plates 4 are arc-shaped and symmetrically distributed, the retaining ring 7 is rotatably disposed inside the connecting seat 6, and the guide rods 10 pass through and are slidably connected to the cylinder 1.

[0023] In this embodiment, before processing the pipe, the two ends of the pipe are passed through the cylinders 1 on the left and right sides. Then, the threaded rod 5 is rotated by the rotating wheel 9, and the threaded rod 5 and the threaded sleeve 8 are screwed together. At the same time, the retaining ring 7 is driven to rotate in the connecting seat 6. Under the guidance of the guide rod 10, the threaded rod 5 will also apply a pushing or pulling force along the axial direction of the threaded rod 5 to the connecting seat 6 and the clamping plate 4 through the retaining ring 7, so that the clamping plate 4 can move vertically to clamp pipes of different sizes, prevent the pipe from shaking during the bending process, thereby affecting the bending effect, ensuring the stability of the bending process, and the operation is simple and convenient, with good practicality.

[0024] Example 2

[0025] like Figure 1 and Figure 4 As shown in the figure, the pipe thermoplastic bending device proposed in this embodiment, compared with the first embodiment, has a support frame 12 on the base 11, a horizontal plate 13 and a bending device on the support frame 12, and an adjustment component for connecting the cylinder 1 on the horizontal plate 13.

[0026] The bending device includes a mounting plate 25, two fixed seats 19 mounted on a support frame 12, a slider 21 slidably connected to the fixed seats 19, a movable frame 20 mounted on the slider 21, a motor 23 mounted on the movable frame 20, a lead screw 24 driven by the motor 23, and a bearing 26, a pressure roller 28, and two sliding rods 27 mounted on the mounting plate 25. The lead screw 24 is threadedly connected to the horizontal plate 13, and the bottom end of the lead screw 24 is connected to the inner ring of the bearing 26. The sliding rods 27 are slidably connected to the horizontal plate 13. The fixed seats 19 are provided with guide grooves 22 for the slider 21 to slide vertically. A spring 29 is sleeved on the sliding rod 27, and the two ends of the spring 29 are respectively mounted on the horizontal plate 13 and the mounting plate 25.

[0027] The adjustment assembly includes a connecting frame 16 rotatably connected to the cylinder 1, a connecting rod 15 disposed on the connecting frame 16, a mounting block 14 disposed on the connecting rod 15, and bolts 17 threadedly connected to the mounting block 14 and the horizontal plate 13; the horizontal plate 13 is provided with a plurality of positioning holes 18 for the bolts 17 to be threadedly connected.

[0028] In this embodiment, after the pipe is stably clamped, the start motor 23 drives the lead screw 24 to rotate. While the lead screw 24 engages with the horizontal plate 13, it also drives the inner ring of the bearing 26 to rotate. The slider 21 and slide rod 27, in conjunction with these components, guide the movement of the moving frame 20 and the mounting plate 25, respectively. This allows the lead screw 24 to engage while simultaneously moving the moving frame 20 and the mounting plate 25 vertically. The mounting plate 25 then drives the pressure roller 28 to move, causing the pressure roller 28 to press against the hot bending sleeve 3 and bend it. The cylinder 1 is then clamped to the pipe via the clamping mechanism. The connection rotates with the connecting frame 16 to ensure that the end of the pipe can adapt to the transmitted force when it is bent, thereby enabling the pipe inside the hot bending sleeve 3 to bend and avoiding obvious irreversible creases at the clamping part. At the same time, the spring 29 can buffer the force during bending to ensure the processing quality of the pipe. Furthermore, the position of the cylinder 1 can be moved without affecting the expansion and contraction performance of the hot bending sleeve 3 through the bolts 17 and positioning holes 18, which facilitates the bending of pipes of different lengths.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pipe thermoplastic bending device, characterized in that, include: A base (11) with two symmetrically distributed cylindrical bodies (1) on top of it; The clamping mechanism includes two clamping plates (4) inside the cylinder (1), a threaded sleeve (8) on the cylinder (1), a threaded rod (5) threadedly connected to the threaded sleeve (8), a connecting seat (6) on the clamping plate (4), a retaining ring (7) and a rotating wheel (9) respectively on both ends of the threaded rod (5), and two guide rods (10) distributed on the clamping plate (4) to the left and right; the two clamping plates (4) are arc-shaped and symmetrically distributed, the retaining ring (7) is rotatably disposed inside the connecting seat (6), and the guide rods (10) pass through and slide on the cylinder (1).

2. The pipe thermoplastic bending device according to claim 1, characterized in that, Heating rings (2) are provided on the cylinder (1), and hot bending sleeves (3) are connected between the heating rings (2). The hot bending sleeves (3) can be freely extended and bent.

3. The pipe thermoplastic bending device according to claim 1, characterized in that, A support frame (12) is provided on the base (11), and a horizontal plate (13) and a bending device are provided on the support frame (12). An adjustment component for connecting the cylinder (1) is provided on the horizontal plate (13).

4. The pipe thermoplastic bending device according to claim 3, characterized in that, The bending device includes a mounting plate (25), two fixed seats (19) set on a support frame (12), a slider (21) slidably connected to the fixed seat (19), a movable frame (20) set on the slider (21), a motor (23) set on the movable frame (20), a lead screw (24) driven by the motor (23), and a bearing (26), a pressure roller (28), and two slide rods (27) set on the mounting plate (25); the lead screw (24) and the cross plate (13) are threadedly connected, the bottom end of the lead screw (24) is connected to the inner ring of the bearing (26), and the slide rods (27) and the cross plate (13) are slidably connected.

5. A pipe thermoplastic bending device according to claim 4, characterized in that, The fixed base (19) is provided with a guide groove (22) for the slider (21) to slide vertically.

6. A pipe thermoplastic bending device according to claim 4, characterized in that, A spring (29) is sleeved on the slide bar (27), and the two ends of the spring (29) are respectively set on the cross plate (13) and the mounting plate (25).

7. A pipe thermoplastic bending device according to claim 3, characterized in that, The adjustment assembly includes a connecting frame (16) rotatably connected to the cylinder (1), a connecting rod (15) disposed on the connecting frame (16), a mounting block (14) disposed on the connecting rod (15), and bolts (17) threadedly connected to the mounting block (14) and the cross plate (13); the cross plate (13) is provided with a plurality of positioning holes (18) for the bolts (17) to be threadedly connected.

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