Intelligent flaring device for PVC pipe production

Abstract

The application relates to the field of PVC pipe flaring devices, in particular to an intelligent flaring device for PVC pipe production, which comprises a machine box, the front end of the machine box is fixedly connected with an extension plate, the top end of the extension plate is provided with a flaring mechanism, the surface of the machine box is fixedly connected with outer ring-shaped frames in an array, inner ring-shaped frames are arranged in the outer ring-shaped frames, and clamping mechanisms for clamping PVC pipes are arranged on the surface of the inner ring-shaped frames in an array. The flaring mechanism, the arc-shaped drainage pipe, the arc-shaped discharge pipe, the outer ring-shaped frames, the inner ring-shaped frames and the clamping mechanisms are arranged, the PVC pipe is fallen into the outer ring-shaped frames through the arc-shaped drainage pipe and is clamped by the clamping mechanisms on the inner ring-shaped frames, then under the action of the limit switch, the inner ring-shaped frames are driven to rotate one station every time the flaring is completed, the inner ring-shaped frames sequentially complete feeding, heating and flaring, manual control of feeding and discharging is not needed, intelligent automatic feeding and discharging are realized, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of flaring devices for PVC pipes, specifically an intelligent flaring device for PVC pipe production. Background Technology

[0002] Plastic pipes are a major product category in plastics, with rigid polyvinyl chloride (PVC) pipes accounting for over 55% of total plastic pipe production. Due to their advantages such as light weight, corrosion resistance, material savings, convenient and quick installation, long service life, low fluid resistance, and anti-settlement properties, PVC pipes have been widely used in drainage, sewage, and agricultural irrigation in recent years. Existing PVC pipe production lines include processes such as feeding, injection molding, cooling, traction, cutting, lateral transfer, flaring, and warehousing. The injection molding process involves a pipe injection molding machine. In the feeding process, dried PVC granules continuously enter the injection molding machine, where they are thermoformed into tubular products and continuously extruded. After cooling, the extruded tubular products are cut into segments by a traction machine. These segments are then laterally transferred by a robotic arm or manually to a flaring machine to flare one end. Finally, the flared segments are stored, completing the PVC pipe manufacturing process.

[0003] In the prior art, some PVC pipe flaring devices are disclosed. Among them, Chinese invention patent application number CN201610993371.3 discloses a PVC pipe flaring device, including a fixed platform, a PVC pipe heating and flaring device disposed on the fixed platform, and a PVC pipe flaring mold device disposed at the front end of the fixed platform. A dovetail groove is provided on the fixed platform. The PVC pipe heating and flaring device includes a dovetail moving block, a movable clamping frame, and a PVC pipe heating device. The dovetail moving block slides within the dovetail groove on the fixed platform. The movable clamping frame is movably disposed on the dovetail moving block for clamping the PVC pipe. The PVC pipe heating device is disposed at the front end of the dovetail moving block and includes a heating guide block, a heating sleeve, and a flaring outer mold. A heating guide hole is provided on the heating guide block. The heating sleeve is movably disposed at the front end of the heating guide hole. The flaring outer mold is disposed at the front outer end of the heating guide hole. The heating inner diameter of the heating sleeve is 2-3 mm larger than the outer diameter of the pipe being heated.

[0004] In the prior art, Chinese invention patent application number CN201910545413.0 discloses a PVC pipe production system, including a processing box with an inlet and an outlet at both ends; the processing box is also equipped with a traction device, a cutting device, a driving device, a flaring device, and a clamping device; the driving device includes a driving cylinder fixed to the top wall of the processing box, a driving frame fixed to the piston rod end of the driving cylinder, a driving roller rotatably connected to the driving frame, a driving motor fixed to the driving frame, and a rotating roller rotatably connected to the inner side walls of both sides of the processing box and located below the driving roller, the driving motor being a servo motor; the flaring device includes a lifting cylinder fixed to the bottom wall of the processing box and a flaring box fixed to the lifting cylinder.

[0005] As is known from existing technology, when flaring the ends of PVC pipes, the ends need to be heated first, and then cooled and shaped using a specified flaring mold. However, the loading and unloading of materials need to be manually controlled during the flaring process, making it difficult to continuously flare PVC pipes, resulting in low production efficiency.

[0006] Based on this, the present invention designs an intelligent flaring device for PVC pipe production to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide an intelligent flaring device for PVC pipe production, in order to solve the problem mentioned in the background art that, when flaring the end of a PVC pipe, it is necessary to first heat the end of the pipe and then cool and shape it using a specified flaring mold. However, during the flaring process, manual control of loading and unloading is required, making it difficult to continuously flare the PVC pipe, resulting in low production efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an intelligent flaring device for PVC pipe production, comprising a chassis, an extension plate fixedly connected to the front end of the chassis, a flaring mechanism provided at the top of the extension plate, an outer ring frame fixedly connected to the surface of the chassis in an array, an inner ring frame provided inside each of the outer ring frames, a clamping mechanism for clamping PVC pipes arranged in an array on the surface of the inner ring frames, connecting rods fixedly connected to the inner sidewalls of the inner ring frames in an array, a rotating shaft fixedly connected to the other end of several connecting rods, and a U-shaped groove fixedly connected to the surface of the rotating shaft near the flaring mechanism in an array.

[0009] The flaring mechanism includes two transverse slide rails and a push cylinder. The transverse slide rails are fixedly connected to the top of the extension plate. Locking sliders are slidably connected to the surface of each transverse slide rail. One end of each locking slider is fixedly connected to the telescopic rod of the push cylinder. The push cylinder is fixedly connected to the end of the extension plate. Two folded brackets are symmetrically fixedly connected to the top of each locking slider. A drive motor is fixedly connected to the top of both folded brackets. A slide cylinder is fixedly connected to the end of the output shaft of the drive motor. The slide cylinder is sleeved on the surface of the rotating shaft, and a series of locking blocks are fixedly arranged on its inner sidewall. The locking blocks are slidably connected to a U-shaped slot. A limit switch is provided at the top of the transverse slide rail away from the chassis. The limit switch is electrically connected to the drive motor.

[0010] Heating sleeves and flared drill bits are respectively fixedly connected to the top of the two folded brackets in the direction of rotation of the drive motor output shaft;

[0011] An arc-shaped drain pipe is fixedly connected to the top of the chassis near the heating sleeve. Several outer ring frames are fixedly connected to the bottom end of the arc-shaped drain pipe. An arc-shaped discharge pipe is fixedly connected to the bottom end of several outer ring frames.

[0012] In existing technology, when flaring the ends of PVC pipes, the ends need to be heated first, and then cooled and shaped using a designated flaring mold. However, the flaring process requires manual control of loading and unloading, making it difficult to continuously flare PVC pipes, resulting in low production efficiency. This technical solution can solve the above problems. The specific operation is as follows: First, multiple PVC pipes are placed inside an arc-shaped drainage pipe. Through the drainage effect of the arc-shaped drainage pipe, the PVC pipe at the bottom of the arc-shaped drainage pipe falls into the outer ring frame and is clamped by the clamping mechanism on the inner ring frame. Then, under the action of the limit switch, the drive... The motor's output shaft rotates one position, engaging with the U-shaped slot on the slide cylinder, causing the shaft to rotate one position. Under the connecting rod's action, the inner annular frame rotates one position along the inner wall of the outer annular frame. At this point, the PVC pipe originally located at the end of the arc-shaped drain pipe moves upwards to the heating sleeve. Meanwhile, a clamping mechanism on the inner annular frame moves to the bottom of the arc-shaped drain pipe, causing the PVC pipe at the bottom of the arc-shaped drain pipe to fall into the outer annular frame and be clamped by the clamping mechanism on the inner annular frame. Subsequently, pushed by the cylinder's telescopic rod, the locking slider moves along the transverse guide rail surface, holding the two folded brackets... Approaching the end of the PVC pipe until the heating sleeve is inserted into the PVC pipe and heats its end, once the end of the PVC pipe is heated, the cylinder extension rod is pushed to pull the locking slider, causing the locking slider to move along the surface of the transverse guide rail, moving the two folded brackets away from the end of the PVC pipe. The heating sleeve disengages from the PVC pipe until the locking slider reaches the limit switch. Under the action of the limit switch, the output shaft of the drive motor rotates one position. Under the same moving distance, the inner annular frame rotates one position along the inner wall of the outer annular frame, rotating the heated PVC pipe to the flaring position. The PVC pipe originally located at the arc-shaped drain pipe end position... Once the pipe reaches the heating sleeve, the PVC pipe at the bottom of the arc-shaped drain pipe falls into the outer ring frame and is held by the clamping mechanism on the inner ring frame. Then, following the above principle, the folded bracket approaches the end of the PVC pipe, the heating sleeve is inserted into the PVC pipe, and its end is heated. The flaring drill bit is inserted into the heated PVC pipe to flare it. The above operation is repeated until the flared PVC pipe is rotated to the bottom of the outer ring frame and discharged through the arc-shaped discharge pipe. This allows for continuous flaring of PVC pipes without the need for manual control of loading and unloading, achieving intelligent and automated loading and unloading, and improving production efficiency.

[0013] As a further embodiment of the present invention, a cooling mechanism is provided at the top of the folded bracket. The cooling mechanism includes a water tank, and the water tank and the flaring drill bit are fixedly connected to the same folded bracket. An inlet pipe and an outlet pipe are fixedly connected to the side wall of the water tank. A cooling cylinder is fixedly connected to the ends of the inlet pipe and the outlet pipe. A cooling head is fixedly connected to the end of the cooling cylinder. During operation, by setting up the cooling mechanism, after the PVC pipe at the flaring station is flared, the output shaft of the drive motor rotates one station under the action of the limit switch, and the PVC pipe at the flaring station enters the cooling station. When the folded bracket approaches the end of the flared PVC pipe, the cooling head is inserted into the end of the PVC pipe to cool the flared position, accelerate the cooling speed of the PVC pipe end, avoid deformation of the PVC pipe due to the rotation of the inner ring frame, and improve the quality of the flared end of the PVC pipe.

[0014] As a further embodiment of the present invention, a sealing plate is fixedly connected to the outer annular frame end of the chassis, and a flexible plate is rotatably connected to the front surface of the sealing plate. During operation, by setting the flexible plate, when the flaring drill bit is inserted into the PVC pipe for flaring, the flexible plate can reduce the extrusion pressure at the end of the PVC pipe, avoid stress damage to the end of the PVC pipe, and at the same time provide support to prevent the PVC pipe from sliding during flaring.

[0015] As a further embodiment of the present invention, the clamping mechanism includes several spoon-shaped plates, and the array of spoon-shaped plates is fixedly connected to the outer groove of the inner annular frame. During operation, by setting the spoon-shaped plates, when the PVC pipe falls into the outer annular frame, it will fall onto the spoon-shaped plates. When the inner annular frame rotates, the PVC pipe will be clamped into the spoon-shaped plates by the pushing of the bottom of the spoon-shaped plates and the squeezing of the outer annular frame, thereby limiting the PVC pipe. When the PVC pipe rotates to the bottom of the outer annular frame, under the action of gravity, the PVC pipe is discharged through the arc-shaped discharge pipe, realizing automatic clamping and unloading of the PVC pipe.

[0016] As a further embodiment of the present invention, each of the outer annular frames is fixedly connected with an elastic plate, and the extended end of the spoon-shaped plate is in contact with the elastic plate; during operation, by setting the elastic plate, the squeezing and wear of the inner wall of the outer annular tube on the PVC pipe is reduced.

[0017] As a further embodiment of the present invention, a feeding box is fixedly connected to the top of the chassis, and the bottom end of the feeding box is fixedly connected to the top end of the arc-shaped drain pipe. During operation, by setting up the feeding box, the capacity of the arc-shaped drain pipe is increased. Multiple PVC pipes can be placed in the feeding box, and the arc-shaped drain pipe can continuously feed the flaring device, thereby improving production efficiency.

[0018] As a further embodiment of the present invention, a collection box is fixedly connected to the bottom of the chassis, and the side wall of the collection box is fixedly connected to the bottom of the arc-shaped discharge pipe; during operation, by setting up the collection box, the processed PVC pipes are collected into the collection box, reducing the number of times the material is collected.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention, by setting up a flaring mechanism, an arc-shaped drain pipe, an arc-shaped discharge pipe, an outer ring frame, an inner ring frame, and a clamping mechanism, allows PVC pipes to fall into the outer ring frame through the arc-shaped drain pipe and be clamped by the clamping mechanism on the inner ring frame. Subsequently, under the action of a limit switch, the inner ring frame is driven to rotate one station after each flaring, so that the inner ring frame sequentially completes feeding, heating, and flaring. There is no need for manual control of loading and unloading, realizing intelligent automated feeding and unloading, and improving production efficiency.

[0021] 2. By setting up a cooling mechanism, after the PVC pipe at the flaring station is flared, the output shaft of the drive motor rotates one station under the action of the limit switch, and the PVC pipe at the flaring station enters the cooling station. When the folded bracket approaches the end of the flared PVC pipe, the cooling head is inserted into the end of the PVC pipe to cool the flared position, accelerate the cooling speed of the PVC pipe end, and prevent the PVC pipe from deforming due to the rotation of the inner ring frame, thereby improving the quality of the flared end of the PVC pipe.

[0022] 3. By setting a flexible plate, when the flaring drill bit is inserted into the PVC pipe for flaring, the flexible plate can reduce the extrusion pressure at the end of the PVC pipe, avoid stress damage to the end of the PVC pipe, and at the same time provide support to prevent the PVC pipe from sliding during flaring. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a first schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a second schematic diagram of the overall structure of the present invention (concealed chassis and flare mechanism);

[0026] Figure 3 This is a front view of the overall structure of the present invention (concealing the chassis and flare mechanism);

[0027] Figure 4 This is a diagram showing the connection of the flaring mechanism in this invention;

[0028] Figure 5 This is a diagram showing the connection between the outer annular frame, the arc-shaped drainage pipe, and the arc-shaped discharge pipe in this invention;

[0029] Figure 6 This is a diagram showing the connection between the outer ring frame, connecting rod, rotating shaft, and spoon-shaped plate in this invention.

[0030] Figure 7 This diagram illustrates the connection between the sealing plate and the flexible plate in this invention.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Chassis; 2. Extension plate; 3. Outer ring frame; 4. Inner ring frame; 5. Connecting rod; 6. Rotating shaft; 7. U-shaped slot; 8. Transverse slide rail; 9. Push cylinder; 10. Locking slider; 11. Folded bracket; 12. Drive motor; 13. Slide cylinder; 14. Locking block; 15. Limit switch; 16. Heating jacket; 17. Flared drill bit; 18. Arc-shaped drain pipe; 19. Arc-shaped discharge pipe; 20. Water tank; 21. Water inlet pipe; 22. Water outlet pipe; 23. Cooling cylinder; 24. Cooling head; 25. Sealing plate; 26. Flexible plate; 27. Spoon-shaped plate; 28. Elastic plate; 29. ​​Feeding box; 30. Collection box. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-7 The present invention provides a technical solution: an intelligent flaring device for PVC pipe production, including a housing 1, an extension plate 2 fixedly connected to the front end of the housing 1, a flaring mechanism provided at the top of the extension plate 2, an outer ring frame 3 fixedly connected in an array on the surface of the housing 1, an inner ring frame 4 provided in each of the outer ring frames 3, a clamping mechanism for clamping PVC pipes being arranged in an array on the surface of the inner ring frame 4, a connecting rod 5 fixedly connected in an array on the inner side wall of the inner ring frame 4, a rotating shaft 6 fixedly connected to the other end of several connecting rods 5, and a U-shaped groove 7 fixedly connected in an array on the surface of the rotating shaft 6 near the flaring mechanism.

[0035] The flaring mechanism includes two transverse slide rails 8 and a push cylinder 9. The transverse slide rails 8 are fixedly connected to the top of the extension plate 2. Locking sliders 10 are slidably connected to the surface of the transverse slide rails 8. One end of the locking slider 10 is fixedly connected to the telescopic rod of the push cylinder 9. The push cylinder 9 is fixedly connected to the end of the extension plate 2. Two folded brackets 11 are symmetrically fixedly connected to the top of the locking sliders 10. The top of the two folded brackets 11 are fixedly connected to the top of the drive motor 12. The output shaft end of the drive motor 12 is fixedly connected to a slide cylinder 13. The slide cylinder 13 is sleeved on the surface of the rotating shaft 6. The inner side wall of the slide cylinder 13 is fixedly arranged with locking blocks 14. The locking blocks 14 are slidably connected to the U-shaped slot 7. A limit switch 15 is provided at the top of the transverse slide rail 8 away from the chassis 1. The limit switch 15 is electrically connected to the drive motor 12.

[0036] The tops of the two folded brackets 11 are respectively fixedly connected to the heating jacket 16 and the flared drill bit 17 in the direction of rotation of the output shaft of the drive motor 12;

[0037] An arc-shaped drain pipe 18 is fixedly connected to the top of the casing 1 near the heating jacket 16. Several outer ring frames 3 are fixedly connected to the bottom of the arc-shaped drain pipe 18. An arc-shaped discharge pipe 19 is fixedly connected to the bottom of the several outer ring frames 3.

[0038] In existing technology, when flaring the ends of PVC pipes, the ends need to be heated first, and then cooled and shaped using a designated flaring mold. However, the flaring process requires manual control of loading and unloading, making it difficult to continuously flare PVC pipes, resulting in low production efficiency. This technical solution can solve the above problems. The specific operation is as follows: First, multiple PVC pipes are placed in the arc-shaped drainage pipe 18. Through the drainage effect of the arc-shaped drainage pipe 18, the PVC pipe at the bottom of the arc-shaped drainage pipe 18 falls into the outer annular frame 3 and is clamped by the clamping mechanism on the inner annular frame 4. Then, under the action of the limit switch 15, the output shaft of the drive motor 12 rotates. The rotating shaft 6 rotates one position, and the locking block 14 on the slide cylinder 13 engages with the U-shaped slot 7, causing the rotating shaft 6 to rotate one position. Under the connecting action of the connecting rod 5, the inner annular frame 4 rotates one position along the inner wall of the outer annular frame 3. At this time, the PVC pipe originally located at the end of the arc-shaped drain pipe 18 moves upward to the position of the heating sleeve 16. Meanwhile, the clamping mechanism of the inner annular frame 4 moves to the bottom end of the arc-shaped drain pipe 18. At this time, the PVC pipe at the bottom of the arc-shaped drain pipe 18 falls into the outer annular frame 3 and is clamped by the clamping mechanism on the inner annular frame 4. Then, under the push of the extension rod of the push cylinder 9, the locking slider 10 moves along the surface of the transverse guide rail, bringing the two folded brackets 11 together. Approaching the end of the PVC pipe, the heating sleeve 16 is inserted into the PVC pipe and heated at its end. After the end of the PVC pipe is heated, the locking slider 10 is pulled by pushing the telescopic rod of the cylinder 9, causing the locking slider 10 to move along the surface of the transverse guide rail, moving the two folded brackets 11 away from the end of the PVC pipe. The heating sleeve 16 is disengaged from the PVC pipe until the locking slider 10 reaches the limit switch 15. Under the action of the limit switch 15, the output shaft of the drive motor 12 rotates one position. Under the same distance, the inner annular frame 4 rotates one position along the inner wall of the outer annular frame 3, rotating the heated PVC pipe to the flaring position, while the original position at the end of the arc-shaped drain pipe 18 is now in the flaring position. The PVC pipe reaches the position of the heating sleeve 16. The PVC pipe at the bottom of the arc-shaped drain pipe 18 falls into the outer ring frame 3 and is clamped by the clamping mechanism on the inner ring frame 4. Then, under the above principle, the folded bracket 11 approaches the end of the PVC pipe, the heating sleeve 16 is inserted into the PVC pipe and its end is heated, and the flaring drill bit 17 is inserted into the heated PVC pipe to flare it. The above operation is repeated, and finally the flared PVC pipe is rotated to the bottom of the outer ring frame 3 and discharged through the arc-shaped discharge pipe 19. Thus, the PVC pipe can be continuously flared without manual control of loading and unloading, realizing intelligent and automated loading and unloading, and improving production efficiency.

[0039] As a further embodiment of the present invention, a cooling mechanism is provided at the top of the folded bracket 11. The cooling mechanism includes a water tank 20, and the water tank 20 and the flaring drill bit 17 are fixedly connected to the same folded bracket 11. The side wall of the water tank 20 is fixedly connected to an inlet pipe 21 and an outlet pipe 22. The ends of the inlet pipe 21 and the outlet pipe 22 are fixedly connected to a cooling cylinder 23. The end of the cooling cylinder 23 is fixedly connected to a cooling head 24. During operation, by setting the cooling mechanism, after the PVC pipe at the flaring station is flared, under the action of the limit switch 15, the output shaft of the drive motor 12 rotates one station, and the PVC pipe at the flaring station enters the cooling station. When the folded bracket 11 approaches the end of the flared PVC pipe, the cooling head 24 is inserted into the end of the PVC pipe to cool the flared position, accelerate the cooling speed of the PVC pipe end, avoid deformation of the PVC pipe due to the rotation of the inner ring frame 4, and improve the quality of the flared end of the PVC pipe.

[0040] As a further embodiment of the present invention, a sealing plate 25 is fixedly connected to the end of the outer annular frame 3 at the end of the casing 1, and a flexible plate 26 is rotatably connected to the front surface of the sealing plate 25. During operation, by setting the flexible plate 26, when the flaring drill bit 17 is inserted into the PVC pipe for flaring, the flexible plate 26 can reduce the extrusion pressure at the end of the PVC pipe, avoid stress damage to the end of the PVC pipe, and at the same time provide support to prevent the PVC pipe from sliding during flaring.

[0041] As a further embodiment of the present invention, the clamping mechanism includes several spoon-shaped plates 27, which are fixedly connected in an array to the outer groove of the inner annular frame 4. During operation, by setting the spoon-shaped plates 27, when the PVC pipe falls into the outer annular frame 3, it will fall onto the spoon-shaped plates 27. When the inner annular frame 4 rotates, the PVC pipe will be clamped into the spoon-shaped plates 27 by the pushing of the bottom of the spoon-shaped plates 27 and the squeezing of the outer annular frame 3, thereby limiting the PVC pipe. When the PVC pipe rotates to the bottom of the outer annular frame 3, under the action of gravity, the PVC pipe is discharged through the arc-shaped discharge pipe 19, realizing automatic clamping and unloading of the PVC pipe.

[0042] As a further embodiment of the present invention, an elastic plate 28 is fixedly connected inside the outer ring frame 3, and the extended end of the spoon-shaped plate 27 is in contact with the elastic plate 28; during operation, by setting the elastic plate 28, the squeezing and wear of the inner wall of the outer ring tube on the PVC pipe is reduced.

[0043] As a further embodiment of the present invention, a feeding box 29 is fixedly connected to the top of the casing 1, and the bottom end of the feeding box 29 is fixedly connected to the top end of the arc-shaped drain pipe 18. During operation, by setting the feeding box 29, the capacity of the arc-shaped drain pipe 18 is increased. Multiple PVC pipes can be placed into the feeding box 29, and the arc-shaped drain pipe 18 can continuously feed the flaring device, thereby improving production efficiency.

[0044] As a further embodiment of the present invention, a collection box 30 is fixedly connected to the bottom of the casing 1, and the side wall of the collection box 30 is fixedly connected to the bottom of the arc-shaped discharge pipe 19. During operation, by setting up the collection box 30, the processed PVC pipes are collected into the collection box 30, reducing the number of times the material is collected.

[0045] Working principle: First, multiple PVC pipes are placed inside the arc-shaped drainage pipe 18. Through the drainage effect of the arc-shaped drainage pipe 18, the PVC pipe at the bottom of the arc-shaped drainage pipe 18 falls into the outer annular frame 3 and is clamped by the clamping mechanism on the inner annular frame 4. Then, under the action of the limit switch 15, the output shaft of the drive motor 12 rotates one position. Through the interlocking of the locking block 14 on the slide cylinder 13 and the U-shaped locking groove 7, the rotating shaft 6 rotates one position. Under the connecting action of the connecting rod 5, the inner annular frame 4 rotates one position along the inner wall of the outer annular frame 3. At this time, the pipe originally located at the port of the arc-shaped drainage pipe 18... The PVC pipe moves upward to the position of the heating sleeve 16, while the clamping mechanism of the inner ring frame 4 moves to the bottom of the arc-shaped drainage tube 18. At this time, the PVC pipe at the bottom of the arc-shaped drainage tube 18 falls into the outer ring frame 3 and is clamped by the clamping mechanism on the inner ring frame 4. Then, under the push of the extension rod of the push cylinder 9, the locking slider 10 moves along the surface of the transverse guide rail, bringing the two folded brackets 11 closer to the end of the PVC pipe until the heating sleeve 16 is inserted into the PVC pipe and heats its end. After the end of the PVC pipe is heated, the locking slider 10 is pulled by the extension rod of the push cylinder 9. Locking slider 10 moves along the transverse guide surface, moving the two folded brackets 11 away from the end of the PVC pipe. Heating sleeve 16 disengages from the PVC pipe until locking slider 10 reaches limit switch 15. Under the action of limit switch 15, the output shaft of drive motor 12 rotates one position. Under the same distance, inner ring frame 4 rotates one position along the inner wall of outer ring frame 3, rotating the heated PVC pipe to the flaring position. The PVC pipe originally located at the end of arc-shaped drain pipe 18 reaches the position of heating sleeve 16, and the PVC pipe at the bottom of arc-shaped drain pipe 18... The pipe falls into the outer ring frame 3 and is held by the clamping mechanism on the inner ring frame 4. Then, under the above principle, the folded bracket 11 approaches the end of the PVC pipe, the heating sleeve 16 is inserted into the PVC pipe and heats its end, and the flaring drill bit 17 is inserted into the heated PVC pipe to flare it. The above operation is repeated, and finally the flared PVC pipe is rotated to the bottom of the outer ring frame 3 and discharged through the arc-shaped discharge pipe 19. Thus, the PVC pipe can be continuously flared without the need for manual control of loading and unloading, realizing intelligent and automated loading and unloading, and improving production efficiency.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent flaring device for PVC pipe production, comprising a housing (1), wherein an extension plate (2) is fixedly connected to the front end of the housing (1), and a flaring mechanism is provided at the top end of the extension plate (2), characterized in that: The chassis (1) is fixedly connected to an outer ring frame (3) in an array. Each of the outer ring frames (3) is provided with an inner ring frame (4). The inner ring frame (4) is provided with a clamping mechanism for clamping PVC pipes in an array. The inner sidewall of the inner ring frame (4) is fixedly connected to a connecting rod (5). The other end of several connecting rods (5) is fixedly connected to a rotating shaft (6). The rotating shaft (6) is fixedly connected to a U-shaped slot (7) in an array on the surface near the flaring mechanism. The flaring mechanism includes two transverse slide rails (8) and a push cylinder (9). The transverse slide rails (8) are fixedly connected to the top of the extension plate (2). Locking sliders (10) are slidably connected to the surface of each transverse slide rail (8). One end of the locking slider (10) is fixedly connected to the telescopic rod of the push cylinder (9). The push cylinder (9) is fixedly connected to the end of the extension plate (2). Two folded brackets (11) are symmetrically fixedly connected to the top of the locking sliders (10). 11) A drive motor (12) is fixedly connected to the top end. A slide cylinder (13) is fixedly connected to the output shaft end of the drive motor (12). The slide cylinder (13) is sleeved on the surface of the rotating shaft (6). A locking block (14) is fixedly arranged on the inner side wall of the slide cylinder (13). The locking block (14) is slidably connected to the U-shaped slot (7). A limit switch (15) is provided at the top of one end of the transverse slide rail (8) away from the chassis (1). The limit switch (15) is electrically connected to the drive motor (12). Heating sleeves (16) and flared drill bits (17) are fixedly connected to the top of the two folded brackets (11) in sequence with respect to the rotation direction of the output shaft of the drive motor (12). An arc-shaped drain pipe (18) is fixedly connected to the top of the machine casing (1) near the heating sleeve (16). Several outer ring frames (3) are fixedly connected to the bottom of the arc-shaped drain pipe (18). An arc-shaped discharge pipe (19) is fixedly connected to the bottom of the outer ring frames (3).

2. The intelligent flaring device for PVC pipe production according to claim 1, characterized in that: The top of the folded bracket (11) is provided with a cooling mechanism, which includes a water tank (20). The water tank (20) and the flared drill bit (17) are fixedly connected to the same folded bracket (11). The side wall of the water tank (20) is fixedly connected with an inlet pipe (21) and an outlet pipe (22). The ends of the inlet pipe (21) and the outlet pipe (22) are fixedly connected to a cooling cylinder (23). The end of the cooling cylinder (23) is fixedly connected to a cooling head (24).

3. The intelligent flaring device for PVC pipe production according to claim 2, characterized in that: A sealing plate (25) is fixedly connected to the end of the outer ring frame (3) at the end of the chassis (1), and a flexible plate (26) is rotatably connected to the front surface of the sealing plate (25).

4. The intelligent flaring device for PVC pipe production according to claim 3, characterized in that: The clamping mechanism includes several spoon-shaped plates (27), which are fixedly connected in an array to the outer groove of the inner ring frame (4).

5. The intelligent flaring device for PVC pipe production according to claim 4, characterized in that: Each of the outer ring frame (3) is fixedly connected with an elastic plate (28), and the extended end of the spoon-shaped plate (27) is in contact with the elastic plate (28).

6. The intelligent flaring device for PVC pipe production according to claim 5, characterized in that: The top of the chassis (1) is fixedly connected to a feeding box (29), and the bottom of the feeding box (29) is fixedly connected to the top of the arc-shaped drain pipe (18).

7. The intelligent flaring device for PVC pipe production according to claim 6, characterized in that: The bottom of the chassis (1) is fixedly connected to a material collection box (30), and the side wall of the material collection box (30) is fixedly connected to the bottom of the arc-shaped discharge pipe (19).

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