Plastic pipeline production line

Abstract

The invention provides a plastic pipeline production line, and belongs to the technical field of pipeline machining. Comprising an extruder, an extrusion opening is formed in one end of the extruder, and a lifting machine is arranged at the bottom of one end of the extruder; the cutting assembly is used for assisting in judging the qualification degree of the pipes, and the cutting assembly is connected with the lifting machine; and the cooling assembly is used for rapidly cooling the cut pipes, and the cooling assembly is connected with the lifting machine. By arranging the cutting assembly and the cooling assembly, the cutting assembly not only can improve the safety of cutting work, but also can vibrate, fall and separate a pipe adhered to a cutter in the process that the cutter descends after cutting is completed; and the cooling assembly not only can quickly cool the cut pipe, but also can lift the cooled pipe upwards, so that the state of the pipe is convenient to observe, and the safety in the production process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing, and particularly relates to a plastic pipe production line. Background Art

[0002] The plastic pipe production line mainly includes links such as raw material processing, extrusion molding, cooling and shaping, traction and cutting, quality inspection, packaging and storage. After the raw materials are heated and plasticized by an extruder, they are formed through a mold, pulled out by a tractor after cooling and shaping, cut into a fixed length, and packaged and stored after passing the inspection. Among them, the extruder of the plastic pipe production line is the key equipment for producing plastic pipes.

[0003] For small-scale plastic pipe production extruders, at the initial stage of extrusion, observe the state of the extruded pipes to judge whether there is wall deviation. Adjust the die orifice by observing through multiple cuttings and with the help of tools until the state of the extruded pipes is qualified. However, in actual production, since the just-extruded pipes are still in a molten state and have a high temperature, workers mostly use scissors or screwdrivers to cut the pipes. This not only easily scratches the die orifice, but also the pipes are prone to sticking to the scissors or screwdrivers. Then the workers remove the stuck pipes by hand, but the high-temperature pipes usually burn the hands, resulting in low safety of the production line. Therefore, based on the above problems, the present invention provides a plastic pipe production line to meet the requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a plastic pipe production line. By setting a cutting component and a cooling component, the cutting component can not only improve the safety of the cutting operation, but also vibrate and separate the pipes stuck on the cutting knife during the process of the cutting knife descending after cutting; the cooling component can not only quickly cool the cut pipes, but also lift the cooled pipes upward to facilitate observing the state of the pipes, improving the safety during the production process. Through the above settings, the problems of the existing cutting method being prone to scratching the die orifice and low safety of workers' operations can be solved.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A plastic pipe production line includes an extruder, one end of the extruder is provided with an extrusion port, and a lift is arranged at the bottom of one end of the extruder; a cutting component, which is used to assist in judging the qualification degree of the pipes, and the cutting component is connected to the lift; a cooling component, which is used to quickly cool the cut pipes, and the cooling component is connected to the lift.

[0006] Optionally, the cutting assembly includes a frame fixedly connected to the top of the elevator. One side of the frame is closely attached to one end of the extruder. On the other side of the frame, a support rod is fixedly connected. A hanging rod is placed on the support rod. A cutting knife is placed at the bottom of the hanging rod. A handle is sleeved on the top of the hanging rod. On the other side of the frame, first grooves are symmetrically formed. Elastic pieces distributed oppositely are fixedly connected to the inner wall of the first grooves. The position of the first grooves corresponds to the position of the hanging rod.

[0007] Optionally, the top of the frame extends to the top of one end of the extruder at a position avoiding the extrusion port. The thickness of the frame is greater than the spacing size of the extrusion port protruding from the extruder. The bottom of the cutting knife is a double-edge blade. The inside of the cutting knife is hollow. Fixed rods are fixedly connected to the centers of both sides of the cutting knife. A blocking block is fixedly connected to one end of the fixed rod away from the cutting knife.

[0008] Optionally, the support rod is a U-shaped round rod. A limiting part is provided at a position where the hanging rod is close to the support rod. The bending radian of the limiting part close to the support rod is adapted to the outer contour of the support rod. A spacing is left between the support rod and the frame. The protruding size of the radian of the limiting part close to the frame is adapted to the size of the spacing. A placement part is provided at the bottom of the hanging rod. The bending radian of the placement part close to the fixed rod is adapted to the outer contour size of the fixed rod.

[0009] Optionally, the cooling assembly includes a collection box placed on the top of the elevator. The collection box is placed closely attached to the frame. The top of the collection box is open. Clamping rods distributed oppositely are fixedly connected inside the collection box. A cooling bin is placed between the clamping rods. A supporting piece is slidably connected inside the cooling bin. A pulling piece is fixedly connected to one side of the supporting piece.

[0010] Optionally, bending parts are symmetrically provided at both ends of the clamping rod. Weakening grooves evenly distributed are formed at the center of the clamping rod in the direction close to the inner wall of the collection box.

[0011] Optionally, the top of the cooling bin is open. Arc-shaped grooves are symmetrically formed at positions close to the top on both sides of the cooling bin. The inner wall size of the arc-shaped grooves is adapted to the outer contour size of the clamping rod. A second groove is formed at the top of the cooling bin. The radian size of the second groove is adapted to the outer contour size of the fixed rod.

[0012] Optionally, a third groove is formed at the top of the cooling bin corresponding to the position of the pulling piece. A roller is fixedly connected to the inner wall of the third groove.

[0013] Optionally, sliding grooves are symmetrically formed in the inner wall of the cooling bin close to the frame body. At positions corresponding to the sliding grooves on the other side of the supporting piece, sliding blocks are fixedly connected. The outer contour size of the sliding blocks is adapted to the inner wall size of the sliding grooves.

[0014] Optionally, a fixing needle is fixedly connected to the center of the supporting piece. Uniformly distributed water-permeable holes are formed through the bottoms of both the supporting piece and the pulling piece.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, by providing a cutting assembly and a cooling assembly, the cutting assembly and the cooling assembly are respectively arranged directly above and directly below the extrusion port. The cutting assembly can not only improve the safety of the cutting operation, but also vibrate and separate the pipe stuck on the cutter during the process of the cutter descending after cutting, thus making it more convenient for the device to process the cut pipe; the cooling assembly can not only quickly cool the cut pipe, but also lift the cooled pipe upward to facilitate observing the state of the pipe. Such a setting, compared with manually separating the high-temperature pipe after cutting, the cooperation of the cutting assembly and the cooling assembly improves the safety during the production process and the quality of the product.

[0016] By providing the cooperation of the support rod and the hanging rod, the cutter is suspended directly above the extrusion port, which is convenient for cutting the extruded pipe. Utilizing the bending structure of the hanging rod itself, not only can the hanging rod rotate around the support rod, but also the cutter suspended on the hanging rod can be separated from the hanging rod by rotation and do a free-fall motion. It is not only simple and ingenious in structure, but also convenient, labor-saving and practical to operate. In addition, the hanging rod is integrally manufactured, such a setting makes the processing technology of the hanging rod simpler in the production and manufacturing process, easier to be produced and manufactured, and reduces the capital investment of the manufacturer.

[0017] By providing the cooperation of the cooling bin and the fixing needle, the cut circular pipe falls into the cooling bin and is inserted into the fixing needle. The diameter of the fixing needle is small and will not affect the pipe structure, and the operation is convenient. The coolant inside the cooling bin is used to quickly cool and form the pipe, so as to facilitate observing whether the pipe is eccentric and improve the qualified rate of the plastic pipe production line.

[0018] By providing the cooperation of the pulling piece, the clamping rod, the sliding block and the fixing needle, the circular pipe inside the cooling bin is pulled out by pulling the pulling piece by hand, so as to facilitate observing the state of the pipe. The cooperation of the sliding block and the fixing needle ensures that the supporting piece rises along the track of the fixing needle, and the cooling bin can be pulled as a whole by pulling the pulling piece by hand, and the cooling bin moves along the track of the clamping rod to ensure that the continuously extruded pipe can be collected into the collection box for convenient secondary utilization. Description of the Drawings

[0019] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0020] Figure 1 It is a schematic three-dimensional structure diagram of an extruder for a plastic pipe production line; Figure 2 It is a schematic three-dimensional structure diagram of the first state of the cooperation between the cutting component and the cooling component; Figure 3 It is a schematic three-dimensional structure diagram of the second state of the cooperation between the cutting component and the cooling component; Figure 4 It is a schematic three-dimensional structure diagram of the partial cross-section of the second state of the cooperation between the cutting component and the cooling component; Figure 5 It is Figure 4 The enlarged three-dimensional structure diagram at position A in Figure 6 It is an enlarged three-dimensional structure diagram of the hanging rod; Figure 7 It is an enlarged three-dimensional structure diagram of the cooling component from the first perspective; Figure 8 It is Figure 7 The enlarged three-dimensional structure diagram at position B in Figure 9 It is an enlarged three-dimensional structure diagram of the cooling component from the second perspective; Figure 10 It is an enlarged three-dimensional structure diagram of the cooperation between the collection box and the clamping rod; Figure 11 It is an enlarged three-dimensional structure diagram of the cooperation between the pulling piece and the supporting piece; Figure 12 It is an enlarged three-dimensional structure diagram of the partial cross-section of the cooling bin.

[0021] Reference numerals: 1. Extruder; 2. Extrusion port; 3. Lift; 4. Frame; 5. Support rod; 6. Hanging rod; 7. Grip; 8. Limiting position; 9. Placement position; 10. First groove; 11. Elastic sheet; 12. Cutter; 13. Fixed rod; 14. Collection box; 15. Clamping rod; 16. Bending part; 17. Weakening groove; 18. Cooling bin; 19. Arc groove; 20. Second groove; 21. Slide groove; 22. Third groove; 23. Roller; 24. Pulling piece; 25. Supporting piece; 26. Slide block; 27. Fixed needle; 28. Water permeable hole.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed Embodiments

[0023] The following describes in detail a plastic pipe production line provided by the present invention with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0024] It should be noted that in the specification, the mention of "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicates that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, implementing such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0025] Generally, terms can be understood at least in part from their use in the context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather can alternatively, at least in part depending on the context, allow for the existence of other factors that may not be explicitly described.

[0026] It can be understood that the meanings of "on...", "above...", and "overhead...", as used in the present invention, should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intermediate features or layers therebetween, and "above..." or "overhead..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intermediate features or layers therebetween.

[0027] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature with another or more elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptors used herein may be interpreted accordingly.

[0028] As Figures 1 to 12 shown, an embodiment of the present invention provides a plastic pipe production line, including an extruder 1, an extrusion port 2 is opened at one end of the extruder 1, and a lift 3 is provided at the bottom of one end of the extruder 1; a cutting assembly, the cutting assembly is used to assist in judging the qualification degree of the pipe, and the cutting assembly is connected to the lift 3; a cooling assembly, the cooling assembly is used to quickly cool the cut pipe, and the cooling assembly is connected to the lift 3. The plastic pipe production line provided in this application is applicable to the processing process of the plastic pipe extrusion system. The raw material enters the extruder 1 from the hopper, and through the rotation of the screw and the heating of the heating system, the raw material is plasticized into a molten state in the barrel. The molten plastic is extruded through the die to form a pipe, and then through subsequent processes such as cooling and shaping, traction, and cutting, finally a plastic pipe is made. Here, the working principle of the plastic pipe extrusion system is publicly known as the prior art and will not be described in detail.

[0029] By providing a cutting assembly and a cooling assembly, the cutting assembly and the cooling assembly are respectively arranged directly above and directly below the extrusion port 2. The cutting assembly can not only improve the safety of the cutting operation, but also vibrate and separate the pipe stuck on the cutter 12 during the process of the cutter 12 descending after cutting, so as to more conveniently process the cut pipe by the device; the cooling assembly can not only quickly cool the cut pipe, but also lift the cooled pipe upward to facilitate observing the state of the pipe. Such a setting, compared with manually separating the high-temperature pipe after cutting, the cooperation of the cutting assembly and the cooling assembly improves the safety in the production process and the quality of the product.

[0030] As an implementation manner in this embodiment, as Figures 1 to 6As shown in the figure, the cutting assembly includes a frame body 4 fixedly connected to the top of the elevator 3. One side of the frame body 4 is closely attached to one end of the extruder 1, and on the other side of the frame body 4, a support rod 5 is fixedly connected. A hanging rod 6 is placed on the support rod 5, and a cutting knife 12 is placed at the bottom of the hanging rod 6. A grip 7 is sleeved on the top of the hanging rod 6. On the other side of the frame body 4, first grooves 10 are symmetrically opened. Elastic sheets 11 distributed oppositely are fixedly connected to the inner wall of the first grooves 10. The position of the first grooves 10 corresponds to the position of the hanging rod 6. The top of the frame body 4 extends to the top of one end of the extruder 1 at a position avoiding the extrusion port 2. The thickness of the frame body 4 is greater than the spacing dimension of the extrusion port 2 protruding from the extruder 1. The bottom of the cutting knife 12 is a double-edge blade, and the inside of the cutting knife 12 is hollow. Fixed rods 13 are fixedly connected to the centers of both sides of the cutting knife 12. A blocking block is fixedly connected to one end of the fixed rod 13 away from the cutting knife 12. The support rod 5 is a U-shaped round rod. A limiting part 8 is provided at the position where the hanging rod 6 is close to the support rod 5. The bending radian of the limiting part 8 close to the support rod 5 is adapted to the outer contour of the support rod 5. There is a spacing between the support rod 5 and the frame body 4. The protruding dimension of the radian of the limiting part 8 close to the frame body 4 is adapted to the dimension of the spacing. A placement part 9 is provided at the bottom of the hanging rod 6. The bending radian of the placement part 9 close to the fixed rod 13 is adapted to the outer contour dimension of the fixed rod 13.

[0031] Specifically, the overall structure of the frame body 4 is a U-shaped structure. The length dimension of the support rod 5 is greater than the slot spacing of the frame body 4. Through the structural cooperation of the support rod 5 and the hanging rod 6 at the limiting part 8, the hanging rod 6 can be clamped on the support rod 5. Then, through the placement part 9 provided at the bottom of the hanging rod 6, it is convenient to place the cutting knife 12 on the placement part 9 to form a support for the cutting knife 12 (as Figures 2 to 3 shown). The thickness dimension of the frame body 4 is greater than the spacing dimension of the extrusion port 2 protruding from the extruder 1 to ensure that the extrusion port 2 will not be damaged during the descent of the cutting knife 12. The double-edge setting of the cutting knife 12 and the opening setting at the top of the cutting knife 12 ensure that a pipe ring can be formed when the cutting knife 12 finishes cutting. Fixed rods 13 are fixedly connected to both ends of the cutting knife 12, and a blocking block is fixedly connected to one end of the fixed rod 13. The spacing between the opposite faces of the blocking block is adapted to the width dimension of the hanging rod 6, which is convenient to limit the cutting knife 12 on the hanging rod 6 and ensure that the position corresponds to the hanging rod 6. When in use, hold the grip 7 and press the grip 7 downward in the direction away from one end of the extruder 1. The hanging rod 6 rotates along the long axis direction of the support rod 5, and the bottom of the hanging rod 6 rotates towards the direction close to the frame body 4 until the hanging rod 6 rotates into the inside of the first groove 10, and the bottom of the hanging rod 6 is clamped by the elastic sheet 11 (as Figure 3As shown in the figure, at this time, the cutting knife 12 has completely separated from the hanging rod 6, and the cutting knife 12 makes a free-fall motion. During the falling process, the cutting knife 12 cuts the pipe extruded through the extrusion port 2. Due to the double-edge setting of the cutting knife 12, in one cutting process, the extruded pipe will be cut into two parts, the pipe outside the cutting knife 12 and the pipe inside the cutting knife 12. The pipe inside the cutting knife 12 will form a ring consistent with the inner wall size of the cutting knife 12. The cut pipe will adhere to the bottom of the cutting knife 12 due to the molten state and make a free-fall motion together with the cutting knife 12.

[0032] By setting the support rod 5 and the hanging rod 6 to cooperate, the cutting knife 12 is suspended directly above the extrusion port 2, which is convenient for cutting the extruded pipe. Utilizing the bending structure of the hanging rod 6 itself, not only can the hanging rod 6 rotate around the support rod 5, but also the cutting knife 12 suspended on the hanging rod 6 can be separated from the hanging rod 6 through rotation and make a free-fall motion. It is not only simple and ingenious in structure, but also convenient, labor-saving and practical in actual operation. In addition, the hanging rod 6 is an integral manufacturing structure as a whole. Such a setting makes the processing technology of the hanging rod 6 simpler in the production and manufacturing process, easier to be produced and manufactured, and reduces the capital investment of the manufacturer.

[0033] As an implementation method in this embodiment, as Figures 1 to 4 and Figures 7 to 12 shown, the cooling assembly includes a collection box 14 placed on the top of the elevator 3. The collection box 14 is placed closely against the frame body 4. The top of the collection box 14 is open. Oppositely distributed clamping rods 15 are fixedly connected inside the collection box 14. A cooling bin 18 is placed between the clamping rods 15. A supporting piece 25 is slidably connected inside the cooling bin 18. One side of the supporting piece 25 is fixedly connected with a pulling piece 24. Bending parts 16 are symmetrically arranged at both ends of the clamping rod 15. Weakening grooves 17 evenly distributed are opened at the center of the clamping rod 15 in the direction close to the inner wall of the collection box 14. The top of the cooling bin 18 is open. Arc-shaped grooves 19 are symmetrically opened at positions near the top on both sides of the cooling bin 18. The inner wall size of the arc-shaped groove 19 is adapted to the outer contour size of the clamping rod 15. A second groove 20 is opened at the top of the cooling bin 18. The radian size of the second groove 20 is adapted to the outer contour size of the fixed rod 13. A third groove 22 corresponding to the pulling piece 24 is opened at the top of the cooling bin 18. A roller 23 is fixedly connected to the inner wall of the third groove 22 (as Figures 7 to 8 shown). Slide grooves 21 are symmetrically opened on the inner wall of the cooling bin 18 close to the frame body 4. Sliders 26 are fixedly connected to the other side of the supporting piece 25 corresponding to the slide grooves 21. The outer contour size of the slider 26 is adapted to the inner wall size of the slide groove 21. A fixed needle 27 is fixedly connected to the center of the supporting piece 25. Uniformly distributed water-permeable holes 28 are opened through the bottoms of both the supporting piece 25 and the pulling piece 24 (as Figure 11 shown).

[0034] Further, clamping rods 15 are symmetrically and fixedly connected inside the collection box 14. The outer contour of the clamping rod 15 is adapted to the inner contour of the arc-shaped groove 19. The clamping rod 15 is made of a curved surface elastic material, and since both ends of the clamping rod 15 are provided with bending parts 16, the distance between the bending parts 16 on the opposite surfaces is adapted to the distance between the arc-shaped grooves 19 on both sides of the cooling bin 18, so that the clamping rod 15 can support and clamp the cooling bin 18 (as Figures 2 to 3 shown), ensuring the stable state of the cooling bin 18. The collection box 14 is placed closely against the frame 4. In order to ensure that the cooling bin 18 is directly below the cutting knife 12, when the cutting knife 12 makes a free fall motion, the bottom of the cutting knife 12 will fall into the cooling bin 18. Since the total length dimension of the cutting knife 12 is greater than the length dimension of the cooling bin 18, and the outer contour dimension of the cutting knife 12 is smaller than the inner wall dimension of the cooling bin 18, after the cutting knife 12 falls, the fixing rod 13 will rest on the second groove 20 on the cooling bin 18 (as Figure 2 and Figure 4 shown). The cooling bin 18 is filled with coolant, and the water level height of the coolant is lower than the bottom of the fixing rod 13. When the cutting knife 12 with the cut pipe falls, when the fixing rod 13 touches the second groove 20, a collision occurs. At the same time, since a supporting piece 25 is also provided inside the cooling bin 18, and three fixing needles 27 are fixedly connected to the center of the supporting piece 25. The top of the fixing needle 27 extends into the cutting knife 12. The middle fixing needle 27 has its tip vertically upward, and the two side fixing needles 27 are symmetrically inclined and the tips face the middle (as Figure 11 shown). The rapidly falling circular pipe falls onto the fixing needles 27. At this time, the bottom of the cutting knife 12 together with the cut circular pipe is immersed in the coolant. At the same time of the collision, the circular pipe is stuck on the fixing needles 27. Coupled with the rapid cooling and hardening of the coolant, it is easy for the circular pipe to separate from the cutting knife 12. At the same time, the cut pipe outside the cutting knife 12 will collide with the top of the cooling bin 18 and also separate from the cutting knife 12 and be collected inside the collection box 14.

[0035] By setting the cooperation of the cooling bin 18 and the fixing needles 27, the cut circular pipe falls into the cooling bin 18 and is stuck into the fixing needles 27. The diameter of the fixing needles 27 is small and will not affect the pipe structure, and the operation is convenient. The coolant inside the cooling bin 18 is used to quickly cool and form the pipe, so as to facilitate observing whether the pipe is eccentric and improve the qualification rate of the plastic pipe production line.

[0036] Further, after the cutter 12 falls into the cooling bin 18 and is separated from the cut pipe, the worker returns the hanging rod 6 to the vertical state, picks up the cutter 12 and places it on the placement location 9 to wait for the next cutting operation. The density of the supporting piece 25 is greater than that of the coolant, so that the supporting piece 25 can easily sink to the bottom of the inner wall of the cooling bin 18. One side of the supporting piece 25 is fixedly connected with a pulling piece 24, and the free end of the pulling piece 24 is fixedly connected with the inner wall of the collecting box 14 (as Figures 2 to 3 shown). The pulling piece 24 is made of inelastic fabric material as a whole to facilitate the stretching of the supporting piece 25. The other side of the supporting piece 25 is fixedly connected with symmetrically distributed sliders 26. The free end of the slider 26 is cross-shaped and is fitted in the sliding groove 21 opened on the inner wall of the cooling bin 18. The positions of the sliding grooves 21 correspond to the sliders 26 one by one (as Figures 11 to 12 shown), and the inner contour size of the sliding groove 21 is adapted to the outer contour size of the free end of the slider 26 to ensure that the slider 26 can slide up and down along the sliding groove 21. Since a roller 23 is fixedly connected to the top of the cooling bin 18 corresponding to the position of the pulling piece 24, when pulling the pulling piece 24 away from the cooling bin 18, the pulling piece 24 will slide along the roller 23, and the bottom of the pulling piece 24 together with the supporting piece 25 will be moved upward synchronously. At the same time, the slider 26 slides upward along the fixed pin 27 to ensure that the supporting piece 25 does not deviate. Since through holes 28 are formed through the supporting piece 25 and the pulling piece 24, the coolant is retained inside the cooling bin 18. When the slider 26 reaches the top of the inner wall of the fixed pin 27, the cut circular pipe protrudes from the top of the cooling bin 18 to facilitate observing the state of the pipe. The cooled and hardened pipe is easier to observe whether the wall thickness is consistent, so as to timely adjust the die orifice to ensure the qualification of the extruded pipe. Then, continuously pulling the pulling piece 24 away from the cooling bin 18 will drive the cooling bin 18 to move away from the frame body 4 along the clamping rod 15. Since weakening grooves 17 are uniformly formed on the outer sides of the centers of the clamping rods 15, under the elastic action of the clamping rods 15, the cooling bin 18 can displace under the action of the pulling force, and the clamping rods 15 will return to their original shapes after the pulling force ends until the outer wall of the cooling bin 18 is close to the inner wall of the collecting box 14 again. At this time, the space directly below the extrusion port 2 is released. Since the extrusion port 2 continuously extrudes the pipe, the extruded pipe will be collected into the collecting box 14 for recycling. After debugging and extruding qualified pipes, start the elevator 3 to lower the frame body 4 below one end of the extruder 1 to ensure that it does not affect the subsequent processes. The working principle of the elevator 3 is publicly known as the prior art, so it will not be elaborated here.

[0037] By setting the cooperation of the pulling piece 24, the clamping rod 15, the slider 26 and the fixing needle 27, the circular pipe in the cooling bin 18 is pulled out by pulling the pulling piece 24 by hand, so as to facilitate observing the state of the pipe. The cooperation of the slider 26 and the fixing needle 27 ensures that the supporting piece 25 rises along the track of the fixing needle 27, and the cooling bin 18 can be pulled as a whole by pulling the pulling piece 24 by hand. The cooling bin 18 moves along the track of the clamping rod 15 to ensure that the continuously extruded pipe can be collected into the collection box 14 for convenient secondary utilization.

[0038] The working principle of the technical solution provided by the present invention is as follows: When in use, hold the handle 7 with the hand and press the handle 7 downward in the direction away from one end of the extruder 1. The hanging rod 6 rotates along the long axis direction of the support rod 5, and the bottom of the hanging rod 6 rotates towards the frame body 4 until the hanging rod 6 rotates into the first groove 10 and the bottom of the hanging rod 6 is clamped by the elastic piece 11. At this time, the cutter 12 has completely separated from the hanging rod 6, and the cutter 12 makes a free fall motion. During the falling process, the cutter 12 cuts the pipe extruded through the extrusion port 2. Due to the double-edge setting of the cutter 12, in one cutting process, the extruded pipe will be cut into two parts, the pipe outside the cutter 12 and the pipe inside the cutter 12. The pipe inside the cutter 12 will form a circular ring consistent with the inner wall size of the cutter 12. The cut pipe will adhere to the bottom of the cutter 12 due to the molten state and make a free fall motion together with the cutter 12. When the cutter 12 makes a free fall motion, the bottom of the cutter 12 will fall into the cooling bin 18, and the fixing rod 13 will be placed on the second groove 20 on the cooling bin 18. The inside of the cooling bin 18 is filled with coolant. When the fixing rod 13 touches the second groove 20, a collision occurs. At the same time, three fixing needles 27 are fixedly connected to the center of the supporting piece 25, and the top of the fixing needle 27 extends into the cutter 12. The rapidly falling circular ring pipe lands on the fixing needles 27. At this time, the bottom of the cutter 12 together with the cut circular ring pipe is immersed in the coolant. During the collision, the circular ring pipe is stuck on the fixing needles 27, and coupled with the rapid cooling and hardening of the coolant, it makes it easy for the circular ring pipe to separate from the cutter 12. At the same time, the cut pipe outside the cutter 12 will collide with the top of the cooling bin 18 and also separate from the cutter 12 and be collected into the collection box 14. After the cutter 12 is separated from the cut pipe, the worker returns the hanging rod 6 to the vertical state and picks up the cutter 12 and places it on the placement location 9 to wait for the next cutting operation. The worker pulls the pulling piece 24 in the direction away from the cooling bin 18, and the pulling piece 24 will slide along the roller 23. The bottom of the pulling piece 24 together with the supporting piece 25 is synchronously moved upward. At the same time, the slider 26 slides upward along the fixing needle 27 to ensure that the supporting piece 25 does not deviate. Since through holes 28 are formed through both the supporting piece 25 and the pulling piece 24, the coolant is retained inside the cooling bin 18. When the slider 26 reaches the inner wall top of the fixing needle 27, the cut circular ring pipe protrudes from the top of the cooling bin 18 to facilitate observing the state of the pipe. The cooled and hardened pipe is easier to observe whether the wall thickness is consistent, so as to timely adjust the die orifice to ensure the qualification of the extruded pipe. Continuing to pull the pulling piece 24 in the direction away from the cooling bin 18 will drive the cooling bin 18 to move away from the frame body 4 along the clamping rod 15. At this time, the space directly below the extrusion port 2 is released. Since the extrusion port 2 is continuously extruding the pipe, the extruded pipe will be collected into the collection box 14 for recycling. This device can not only improve the safety of the cutting operation, but also vibrate and separate the pipe adhered to the cutter 12 during the process of the cutter 12 descending after cutting is completed.Thus, it is more convenient for the device to process the cut pipe; the cut pipe can also be quickly cooled, and the cooled pipe is lifted upward to facilitate observing the state of the pipe. Such a setting improves the safety in the production process and the product quality compared with manually separating the high-temperature pipe after cutting.

[0039] The present invention covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits, etc., are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0040] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A plastic pipe production line, comprising an extruder, characterized in that: An extrusion port is provided at one end of the extruder, and a lift is provided at the bottom of one end of the extruder; A cutting assembly, which is used to assist in judging the qualification of the pipe and is connected to the elevator; A cooling component is used to quickly cool the cut pipe, and the cooling component is connected to the elevator.

2. The plastic pipe production line according to claim 1, characterized in that: The cutting assembly includes a frame fixedly connected to the top of the elevator, one side of the frame is close to one end of the extruder, the other side of the frame is fixedly connected to a support rod, a hanging rod is placed on the support rod, a cutter is placed at the bottom of the hanging rod, a handle is sleeved on the top of the hanging rod, and a first groove is symmetrically opened on the other side of the frame, the inner wall of the first groove is fixedly connected to oppositely distributed elastic sheets, and the position of the first groove corresponds to the position of the hanging rod.

3. The plastic pipe production line according to claim 2, characterized in that: The top of the frame avoids the position of the extrusion port and extends to the top of one end of the extruder. The thickness of the frame is greater than the spacing dimension of the extrusion port protruding from the extruder. The bottom of the cutter is a double-edged blade. The interior of the cutter is hollow. Fixed rods are fixedly connected at the center of both sides of the cutter. A blocking block is fixedly connected to the end of the fixed rod away from the cutter.

4. The plastic pipe production line according to claim 2, characterized in that: The support rod is a U-shaped round rod, and a limit position is provided at a position of the hanging rod near the support rod. The curvature of the limit position near the support rod is matched with the outer contour of the support rod. A spacing is left between the support rod and the frame. The protruding size of the curvature of the limit position near the frame is matched with the size of the spacing. A placement position is provided at the bottom of the hanging rod. The curvature of the placement position near the fixed rod is matched with the outer contour size of the fixed rod.

5. The plastic pipe production line according to claim 2, characterized in that: The cooling assembly includes a collecting box placed on the top of the elevator, the collecting box is placed close to the frame, the top of the collecting box is opened, the interior of the collecting box is fixedly connected with oppositely distributed clamping rods, a cooling bin is placed between the clamping rods, the interior of the cooling bin is slidably connected with a supporting plate, and one side of the supporting plate is fixedly connected with a pulling plate.

6. The plastic pipe production line according to claim 5, characterized in that: The two ends of the clamping rod are symmetrically provided with bent parts, and the center of the clamping rod is provided with evenly distributed weakening grooves in a direction close to the inner wall of the collecting box.

7. The plastic pipe production line according to claim 5, characterized in that: The top of the cooling bin is opened, and arc grooves are symmetrically provided on both sides of the cooling bin near the top, the inner wall size of the arc grooves is adapted to the outer contour size of the clamping rod, and a second groove is provided on the top of the cooling bin, and the curvature size of the second groove is adapted to the outer contour size of the fixing rod.

8. The plastic pipe production line according to claim 5, characterized in that: A third groove is provided on the top of the cooling bin at a position corresponding to the pulling sheet, and a roller is fixedly connected to the inner wall of the third groove.

9. The plastic pipe production line according to claim 5, characterized in that: The cooling bin is symmetrically provided with slide grooves on the inner wall close to the frame, and a slider is fixedly connected to the other side of the supporting plate at a position corresponding to the slide groove, and the outer contour size of the slider is matched with the inner wall size of the slide groove.

10. The plastic pipe production line according to claim 5, characterized in that: A fixing needle is fixedly connected at the center of the supporting sheet, and evenly distributed water-permeable holes are penetrated through the bottoms of the supporting sheet and the pulling sheet.

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