A plastic pipe production line

Abstract

The present invention provides a plastic pipe production line, which belongs to the field of pipe processing technology. It includes an extruder, one end of which is provided with an extrusion port, and the bottom of one end of the extruder is provided with an elevator; a cutting assembly, which is used to assist in judging the degree of qualification of the pipe, and the cutting assembly is connected to the elevator; and a cooling assembly, which is used to quickly cool the cut pipe, and the cooling assembly is connected to the elevator. By providing the cutting assembly and the cooling assembly, the present invention can not only improve the safety of the cutting work, but also vibrate and separate the pipe stuck to the cutter during the process of the cutter descending after cutting; the cooling assembly can not only quickly cool the cut pipe, but also lift the cooled pipe upwards, making it convenient to observe the status of the pipe, thereby improving the safety of the production process.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline processing, in particular to a plastic pipeline production line. Background Art

[0002] A plastic pipe production line primarily involves raw material processing, extrusion molding, cooling and shaping, hauling and cutting, quality inspection, packaging, and storage. The raw material is heated and plasticized in an extruder, then molded and shaped. After cooling and shaping, it is pulled out by a hauler, cut to a desired length, and packaged and stored after passing inspection. The extruder in a plastic pipe production line is a key piece of equipment.

[0003] For small-scale plastic pipe production extruders, at the initial stage of extrusion, the state of the extruded pipe is observed to determine whether it is wall-biased. Multiple cuts and observations are performed and the die is adjusted with the help of tools until the extruded pipe is in a qualified state. However, in actual production, since the newly extruded pipe is still in a molten state and has a high temperature, workers mostly use scissors or screwdrivers to cut the pipe, which not only easily scratches the die, but also makes the pipe easily stick to the scissors or screwdrivers. The workers then remove the stuck pipe by hand, but the high-temperature pipe is usually hot, 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 needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a plastic pipe production line by arranging a cutting component and a cooling component. The cutting component can not only improve the safety of the cutting work, but also can vibrate and separate the pipe stuck on the cutter during the process of the cutter descending after the cutting is completed; the cooling component can not only quickly cool the cut pipe, but also lift the cooled pipe upward, making it convenient to observe the status of the pipe, thereby improving the safety of the production process. The above settings can solve the problems of the existing cutting method that is easy to scratch the die and the low safety of workers' operation.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A plastic pipe production line comprises an extruder, one end of which is provided with an extrusion port, and a bottom of which is provided with an elevator; a cutting assembly, which is used to assist in judging the degree of qualification of pipes and is connected to the elevator; and a cooling assembly, which is used to quickly cool the cut pipes and is connected to the elevator.

[0007] Optionally, 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, and 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.

[0008] Optionally, 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 double-edged, and the interior of the cutter is hollow. Fixed rods are fixedly connected at the centers of both sides of the cutter, and a block is fixedly connected to the end of the fixed rod away from the cutter.

[0009] Optionally, the support rod is a U-shaped round rod, and the hanging rod is provided with a limit position near the support rod, the curvature of the limit position near the support rod is adapted to the outer contour of the support rod, and 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 adapted to the size of the spacing, and a placement position is provided at the bottom of the hanging rod, the curvature of the placement position near the fixed rod is adapted to the outer contour size of the fixed rod.

[0010] Optionally, the cooling assembly includes a collection box placed on the top of the elevator, the collection box is placed close to the frame, the top of the collection box is set to be open, the interior of the collection 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 a pulling plate is fixedly connected to one side of the supporting plate.

[0011] Optionally, bent portions are symmetrically provided at both ends of the clamping rod, and evenly distributed weakening grooves are provided at the center of the clamping rod close to the inner wall of the collecting box.

[0012] Optionally, the top of the cooling bin is opened, and arc-shaped grooves are symmetrically provided on both sides of the cooling bin near the top, the inner wall size of the arc-shaped 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.

[0013] Optionally, a third groove is provided on the top of the cooling chamber at a position corresponding to the pulling piece, and a roller is fixedly connected to the inner wall of the third groove.

[0014] Optionally, the cooling bin is symmetrically provided with sliding grooves on the inner wall close to the frame, and a slider is fixedly connected to the position of the sliding groove on the other side of the supporting plate, and the outer contour size of the slider is adapted to the inner wall size of the sliding groove.

[0015] Optionally, a fixing needle is fixedly connected to the center of the supporting sheet, and evenly distributed water-permeable holes are formed through the bottoms of the supporting sheet and the pulling sheet.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up a cutting component and a cooling component, the cutting component and the cooling component are respectively set directly above and directly below the extrusion port. The cutting component can not only improve the safety of the cutting work, but also can vibrate and separate the pipe stuck on the cutter during the process of the cutter descending after the cutting is completed, thereby making it more convenient for the device to handle the cut pipe; the cooling component can not only quickly cool the cut pipe, but also lift the cooled pipe upwards to facilitate observation of the pipe status. Compared with manually separating high-temperature pipes after cutting, this setting cooperates with the cutting component to improve the safety of the production process and improve the quality of the product.

[0018] By arranging a support rod and a hanging rod in coordination, the cutter is hung just above the extrusion port, which facilitates cutting of the extruded pipe. By utilizing the curved structure of the hanging rod itself, not only can the hanging rod rotate around the support rod, but the cutter hung on the hanging rod can also be separated from the hanging rod by rotation, and perform free fall motion. Not only is the structure simple and ingenious, but the actual operation is convenient and labor-saving. In addition, the hanging rod is an integrated manufacturing structure as a whole. Such a setting makes the processing technology of the hanging rod simpler during the production process, and it is easier to produce and manufacture, thereby reducing the manufacturer's capital investment.

[0019] By setting up a cooling bin and a fixing needle, the cut circular pipe falls into the cooling bin and is inserted into the fixing needle. The fixing needle has a small diameter and will not affect the pipe structure. It is easy to operate. The coolant inside the cooling bin is used to quickly cool and shape the pipe, making it easy to observe whether the pipe is deviating from the wall, thereby improving the qualification rate of the plastic pipe production line.

[0020] By setting up a pulling piece, a clamping rod, and the cooperation of a slider and a fixed needle, the circular tube inside the cooling bin can be pulled out by manually pulling the pulling piece to facilitate observation of the status of the tube. The slider and the fixed needle cooperate to ensure that the supporting piece rises along the trajectory of the fixed needle, and the cooling bin can be pulled as a whole by manually pulling the pulling piece. The cooling bin moves along the trajectory of the clamping rod to ensure that the continuously extruded tube can be collected into the collection box for convenient secondary use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the extruder of the plastic pipe production line;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the cutting assembly and the cooling assembly in the first state;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the cutting assembly and the cooling assembly in the second state;

[0025] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the cutting assembly and the cooling assembly in the second state;

[0026] Figure 5 for Figure 4 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0027] Figure 6 This is an enlarged schematic diagram of the three-dimensional structure of the hanging rod;

[0028] Figure 7 This is an enlarged schematic diagram of the three-dimensional structure of the cooling component from the first perspective;

[0029] Figure 8 for Figure 7 The enlarged three-dimensional structure diagram at B in the middle;

[0030] Figure 9 A schematic diagram of the cooling assembly's enlarged three-dimensional structure from a second perspective;

[0031] Figure 10 This is an enlarged three-dimensional structural diagram of the collection box and the clamping rod;

[0032] Figure 11 This is an enlarged three-dimensional structural diagram of the pulling piece and the supporting piece;

[0033] Figure 12 It is a schematic diagram of the partially cutaway and enlarged three-dimensional structure of the cooling chamber.

[0034] Reference numerals:

[0035] 1. Extruder; 2. Extrusion port; 3. Elevator; 4. Frame; 5. Support rod; 6. Hanging rod; 7. Handle; 8. Limiting point; 9. Placement point; 10. First groove; 11. Elastic sheet; 12. Cutter; 13. Fixing rod; 14. Collection box; 15. Clamping rod; 16. Bending part; 17. Weakening groove; 18. Cooling chamber; 19. Arc groove; 20. Second groove; 21. Slide groove; 22. Third groove; 23. Roller; 24. Pulling piece; 25. Supporting piece; 26. Slider; 27. Fixing needle; 28. Water hole.

[0036] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0037] The following describes a plastic pipe production line provided by the present invention in detail with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0038] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0039] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0040] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0041] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0042] like Figures 1 to 12 As shown, an embodiment of the present invention provides a plastic pipe production line, including an extruder 1, an extrusion port 2 is provided at one end of the extruder 1, and an elevator 3 is provided at the bottom of one end of the extruder 1; a cutting component, the cutting component is used to assist in judging the degree of qualification of the pipe, and the cutting component is connected to the elevator 3; a cooling component, the cooling component is used to quickly cool the cut pipe, and the cooling component is connected to the elevator 3. The plastic pipe production line provided by this application is suitable for the processing flow of the plastic pipe extrusion system. The raw material enters the extruder 1 from the hopper, and is plasticized into a molten state in the barrel through the rotation of the screw and the heating of the heating system. The molten plastic is extruded into a pipe through a mold, and then undergoes subsequent processes such as cooling, shaping, pulling, and cutting to finally make a plastic pipe. The working principle of the plastic pipe extrusion system here is disclosed as a prior art and therefore will not be described in detail.

[0043] By setting up 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 work, but also can vibrate and separate the pipe stuck on the cutter 12 during the process of the cutter 12 descending after the cutting is completed, thereby making it more convenient for the device to handle the cut pipe; the cooling assembly can not only quickly cool the cut pipe, but also lift the cooled pipe upwards to facilitate observation of the pipe status. Compared with manually separating high-temperature pipes after cutting, this arrangement cooperates with the cutting assembly and the cooling assembly to improve the safety of the production process and improve the quality of the product.

[0044] As an implementation method in this embodiment, Figures 1 to 6As shown, the cutting assembly includes a frame 4 fixedly connected to the top of the elevator 3, one side of the frame 4 is close to one end of the extruder 1, and the other side of the frame 4 is fixedly connected to a support rod 5, a hanging rod 6 is placed on the support rod 5, a cutter 12 is placed at the bottom of the hanging rod 6, and a handle 7 is sleeved on the top of the hanging rod 6. A first groove 10 is symmetrically opened on the other side of the frame 4, and the inner wall of the first groove 10 is fixedly connected with an elastic sheet 11 distributed in opposite directions. The position of the first groove 10 corresponds to the position of the hanging rod 6. The top of the frame 4 avoids the position of the extrusion port 2 and extends to the top of one end of the extruder 1. The thickness of the frame 4 is greater than the spacing size of the extrusion port 2 protruding from the extruder 1. The bottom of the cutter 12 is a double-edged blade, and the interior of the cutter 12 is hollow. The centers of both sides of the cutter 12 are fixedly connected to fixed rods 13, and the end of the fixed rod 13 away from the cutter 12 is fixedly connected to a block. The support rod 5 is a U-shaped round rod, and the hanging rod 6 is provided with a limit 8 near the support rod 5. The curvature of the limit 8 close to the support rod 5 is adapted to the outer contour of the support rod 5. A spacing is left between the support rod 5 and the frame 4. The protruding size of the curvature of the limit 8 close to the frame 4 is adapted to the size of the spacing. A placement 9 is provided at the bottom of the hanging rod 6. The curvature of the placement 9 close to the fixed rod 13 is adapted to the outer contour size of the fixed rod 13.

[0045] Specifically, the overall structure of the frame 4 is a U-shaped structure, the length of the support rod 5 is greater than the slot spacing of the frame 4, the support rod 5 and the hanging rod 6 are matched through the structure of the limit 8, so that the hanging rod 6 can be clamped on the support rod 5, and then the placement 9 provided at the bottom of the hanging rod 6 is convenient for placing the cutter 12 on the placement 9 to form a support for the cutter 12 (such as Figures 2 to 3 The cutter 12 is provided with a double-edged blade 12 and a blocking block 13 at one end of the cutter 12, and the spacing between the opposing surfaces of the blocking block 13 matches the width of the hanging rod 6, so that the cutter 12 can be limited to the hanging rod 6 and the position can correspond to the hanging rod 6. When in use, the handle 7 is held by hand and pressed downward in the direction away from one end of the extruder 1. The hanging rod 6 rotates along the long axis of the support rod 5, and the bottom of the hanging rod 6 rotates toward the frame 4 until the hanging rod 6 rotates to the inside of the first groove 10 and the bottom of the hanging rod 6 is clamped by the elastic sheet 11 (as shown in FIG. Figure 3As shown), at this time, the cutter 12 has been completely separated from the hanging rod 6, and the cutter 12 performs free fall motion, cutting the tube extruded through the extrusion port 2 during the falling process. Due to the double-edged setting of the cutter 12, the extruded tube will be cut into two parts in one cutting process, the tube outside the cutter 12 and the tube inside the cutter 12. The tube inside the cutter 12 will form a ring with the same size as the inner wall of the cutter 12. The cut tube will adhere to the bottom of the cutter 12 due to the molten state and perform free fall motion with the cutter 12.

[0046] By arranging the support rod 5 and the hanging rod 6 to cooperate, the cutter 12 is hung just above the extrusion port 2, which is convenient for cutting the extruded pipe. The curved structure of the hanging rod 6 not only allows the hanging rod 6 to rotate around the support rod 5, but also allows the cutter 12 hung on the hanging rod 6 to be separated from the hanging rod 6 by rotation, and perform free fall motion. Not only is the structure simple and ingenious, but the actual operation is convenient and labor-saving. In addition, the hanging rod 6 is an integrated manufacturing structure as a whole. Such a setting makes the processing technology of the hanging rod 6 simpler during the production process, easier to produce, and reduces the manufacturer's capital investment.

[0047] As an implementation method in this embodiment, Figures 1 to 4 and Figures 7 to 12 As shown, the cooling assembly includes a collection box 14 placed on the top of the elevator 3, the collection box 14 is placed close to the frame 4, the top of the collection box 14 is set, the interior of the collection box 14 is fixedly connected with oppositely distributed clamping rods 15, a cooling bin 18 is placed between the clamping rods 15, the interior of the cooling bin 18 is slidably connected with a supporting sheet 25, one side of the supporting sheet 25 is fixedly connected with a pulling sheet 24, the two ends of the clamping rod 15 are symmetrically provided with a bending portion 16, the center of the clamping rod 15 is open in the direction close to the inner wall of the collection box 14 A uniformly distributed weakening groove 17 is provided, the top of the cooling bin 18 is opened, and arc grooves 19 are symmetrically opened on both sides of the cooling bin 18 near the top. The inner wall size of the arc groove 19 is adapted to the outer contour size of the clamping rod 15. A second groove 20 is provided on the top of the cooling bin 18. The arc size of the second groove 20 is adapted to the outer contour size of the fixing rod 13. A third groove 22 is provided at the top of the cooling bin 18 corresponding to the position of the pulling piece 24. A roller 23 (such as Figures 7 and 8 As shown in FIG, the cooling chamber 18 is symmetrically provided with a slide groove 21 on the inner wall near the frame 4, and a slider 26 is fixedly connected to the position of the slide groove 21 on the other side of the supporting piece 25. The outer contour size of the slider 26 is adapted to the inner wall size of the slide groove 21. A fixing pin 27 is fixedly connected to the center of the supporting piece 25. The bottom of the supporting piece 25 and the pulling piece 24 are penetrated by evenly distributed water-permeable holes 28 (as shown in FIG. Figure 11 shown).

[0048] Furthermore, a clamping rod 15 is symmetrically fixedly connected to the interior of the collection box 14. The outer contour of the clamping rod 15 is adapted to the inner contour of the arc groove 19. The clamping rod 15 is made of a curved elastic material as a whole. Since the two ends of the clamping rod 15 are provided with a bent portion 16, the distance between the bent portions 16 on the opposite sides is adapted to the distance between the arc grooves 19 on both sides of the cooling bin 18, so that the clamping rod 15 can support and clamp the cooling bin 18 (such as Figures 2 to 3 As shown), to ensure that the cooling bin 18 is stable, the collection box 14 is placed close to the frame 4. In order to ensure that the cooling bin 18 is located directly below the cutter 12, when the cutter 12 does free fall, the bottom of the cutter 12 will fall into the cooling bin 18. Since the total length of the cutter 12 is greater than the length of the cooling bin 18, and the outer contour of the cutter 12 is smaller than the inner wall of the cooling bin 18, the fixing rod 13 will be placed on the second groove 20 on the cooling bin 18 after the cutter 12 falls (as shown in FIG. Figure 2 and Figure 4 As shown in FIG, the interior of the cooling chamber 18 is filled with coolant, and the water level of the coolant is lower than the bottom of the fixing rod 13. When the cutter 12 falls with the cut pipe, the fixing rod 13 contacts the second groove 20 and collides. At the same time, since a supporting plate 25 is also provided inside the cooling chamber 18, three fixing needles 27 are fixedly connected to the center of the supporting plate 25. The top of the fixing needle 27 extends to the interior of the cutter 12. The needle tip of the middle fixing needle 27 is vertically arranged upward, and the fixing needles 27 on both sides are symmetrically tilted, with the needle tips facing the middle (as shown in FIG. Figure 11 As shown in the figure, the rapidly falling circular tube falls on the fixed needle 27. At this time, the bottom of the cutter 12 and the cut circular tube are immersed in the coolant. During the collision, the circular tube is pierced on the fixed needle 27. In addition, the rapid cooling and hardening of the coolant makes it easy to separate the circular tube from the cutter 12. At the same time, the cut tube outside the cutter 12 will collide with the top of the cooling chamber 18, and is also separated from the cutter 12 and collected in the inside of the collection box 14.

[0049] By setting up the cooling bin 18 and the fixing needle 27, the cut circular tube falls into the cooling bin 18 and is inserted into the fixing needle 27. The fixing needle 27 has a small diameter and will not affect the structure of the tube. It is easy to operate. The coolant inside the cooling bin 18 is used to quickly cool and shape the tube, so that it is easy to observe whether the tube is deviating from the wall, thereby improving the qualification rate of the plastic pipe production line.

[0050] Furthermore, after the cutter 12 falls into the cooling bin 18 and is separated from the cut pipe, the worker restores the hanging rod 6 to a vertical state and picks up the cutter 12 and places it on the placement 9 to wait for the next cutting work. The density of the supporting sheet 25 is greater than the density of the coolant, so that the supporting sheet 25 can easily sink to the bottom of the inner wall of the cooling bin 18. A pulling sheet 24 is fixedly connected to one side of the supporting sheet 25. The free end of the pulling sheet 24 is fixedly connected to the inner wall of the collection box 14 (such as Figures 2 to 3 As shown), the pulling piece 24 is made of inelastic cloth material to facilitate the stretching of the supporting piece 25. The other side of the supporting piece 25 is fixedly connected with a symmetrically distributed slider 26. The free end of the slider 26 is cross-shaped and matched with the slide groove 21 opened on the inner wall of the cooling chamber 18. The position of the slide groove 21 corresponds to the slider 26 one by one (as shown). Figures 11 to 12 As shown in FIG, the inner contour size of the slide groove 21 matches the outer contour size of the free end of the slider 26, ensuring that the slider 26 can slide up and down along the slide groove 21. Since the top of the cooling bin 18 corresponds to the position of the pulling piece 24 and is fixedly connected to the roller 23, the pulling piece 24 is pulled away from the cooling bin 18 by hand, and the pulling piece 24 will slide along the roller 23. The bottom of the pulling piece 24 and the supporting piece 25 are moved upward synchronously. At the same time, the slider 26 slides upward along the fixed needle 27 to ensure that the supporting piece 25 does not deviate. Since water permeable holes 28 are provided on 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 top of the inner wall of the fixing needle 27, the cut circular tube protrudes from the top of the cooling bin 18, which makes it easier to observe the state of the tube. After cooling and hardening, it is easier to observe whether the wall thickness is consistent, so as to adjust the mold in time. The outlet 2 is formed by pulling the pulling piece 24 away from the cooling bin 18 to ensure the quality of the extruded pipe. The pulling piece 24 is continuously pulled away from the cooling bin 18, which will drive the cooling bin 18 to move along the clamping rod 15 away from the frame 4. Since the outer side of the center of the clamping rod 15 is provided with evenly distributed weakening grooves 17, the cooling bin 18 can be displaced under the action of tension under the elastic action of the clamping rod 15, and the clamping rod 15 recovers its deformation after the tension ends until the outer wall of the cooling bin 18 is close to the inner wall of the collection box 14 again. At this time, the space directly below the extrusion outlet 2 is released. Since the extrusion outlet 2 is continuously extruding the pipe, the extruded pipe will be collected inside the collection box 14 for recycling. After debugging to extrude qualified pipes, the elevator 3 is started to lower the frame 4 to the bottom of one end of the extruder 1 to ensure that it does not affect the subsequent processes. The working principle of the elevator 3 is disclosed as a prior art, so it will not be described in detail.

[0051] By setting the pulling piece 24, the clamping rod 15, and the cooperation of the slider 26 and the fixed needle 27, the annular tube inside the cooling bin 18 can be pulled out by manually pulling the pulling piece 24 to facilitate observation of the status of the tube. The slider 26 and the fixed needle 27 cooperate to ensure that the supporting piece 25 rises along the trajectory of the fixed needle 27, and the cooling bin 18 can be pulled as a whole by manually pulling the pulling piece 24. The cooling bin 18 moves along the trajectory of the clamping rod 15 to ensure that the continuously extruded tube can be collected into the collection box 14 for convenient secondary use.

[0052] The working principle of the technical solution provided by the present invention is as follows:

[0053] When in use, the handle 7 is held by hand and pressed downward in the direction away from one end of the extruder 1, and the hanging rod 6 rotates along the long axis direction of the support rod 5, and the bottom of the hanging rod 6 rotates in the direction close to the frame 4 until the hanging rod 6 rotates to the inside of the first groove 10 and the bottom of the hanging rod 6 is clamped by the elastic sheet 11. At this time, the cutter 12 is completely separated from the hanging rod 6, and the cutter 12 performs free fall motion. During the falling process, the pipe extruded through the extrusion port 2 is cut. Due to the double-edged setting of the cutter 12, the extruded pipe will be cut into two parts in one cutting process, the pipe outside the cutter 12 and the pipe inside the cutter 12. The pipe inside the cutter 12 will form a ring with the same size as the inner wall of the cutter 12, and the cut pipe will adhere to the cutter 12 due to the molten state. The bottom of the cutter 12 follows the cutter 12 to perform free fall motion. When the cutter 12 performs free fall motion, the bottom of the cutter 12 will fall into the cooling bin 18. The fixing rod 13 will be mounted on the second groove 20 on the cooling bin 18. The interior of the cooling bin 18 is filled with coolant. When the fixing rod 13 contacts the second groove 20, a collision occurs. At the same time, three fixing pins 27 are fixedly connected to the center of the supporting plate 25, and the tops of the fixing pins 27 extend to the interior of the cutter 12. The rapidly falling annular tube falls on the fixing pins 27. At this time, the bottom of the cutter 12 and the cut annular tube are immersed in the coolant. At the same time, the annular tube is pierced on the fixing pins 27 during the collision. In addition, the rapid cooling and hardening of the coolant makes it easy for the annular tube to collide with the cutter. 12 is separated. At the same time, the cut pipe outside the cutter 12 will collide with the top of the cooling bin 18 and be separated from the cutter 12 and collected in the collection box 14. After the cutter 12 is separated from the cut pipe, the worker restores the hanging rod 6 to the vertical state and picks up the cutter 12 and places it on the placement 9 to wait for the next cutting work. The worker pulls the pulling piece 24 away from the cooling bin 18 by hand. The pulling piece 24 will slide along the roller 23. The bottom of the pulling piece 24 is moved upward synchronously together with the supporting piece 25. 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 the supporting piece 25 and the pulling piece 24 are penetrated with water permeable holes 28, the coolant is retained in the cooling bin 18. When the slider 26 reaches the top of the inner wall of the fixed needle 27, the cut circular tube protrudes from the top of the cooling chamber 18, which makes it easier to observe the state of the tube. It is easier to observe whether the wall thickness of the tube after cooling and hardening is consistent, so as to adjust the die mouth in time to ensure the quality of the extruded tube. Then, the pulling piece 24 is continuously pulled away from the cooling chamber 18, which will drive the cooling chamber 18 to move away from the frame 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 tube, the extruded tube will be collected in the collection box 14 for recycling. This device can not only improve the safety of the cutting work, but also can vibrate and separate the tube stuck on the cutter 12 during the process of the cutter 12 descending after the cutting is completed.This makes it easier for the device to handle the cut pipes; it can also quickly cool the cut pipes, and lift the cooled pipes upwards for easy observation of the pipe status. Compared with manually separating high-temperature pipes after cutting, this setting improves the safety of the production process and improves product quality.

[0054] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection 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 degree of pipe quality and is connected to the elevator; A cooling assembly, which is used to quickly cool the cut pipe and is connected to the elevator; 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, and a handle is sleeved on the top of the hanging rod. A first groove is symmetrically opened on the other side of the frame, and the inner wall of the first groove is fixedly connected to an elastic sheet distributed in opposite directions, and the position of the first groove corresponds to the position of the hanging rod; The top of the frame extends to the top of one end of the extruder, avoiding the position of the extrusion port. The thickness of the frame is greater than the distance between the extrusion port and the extruder. The bottom of the cutter is double-edged. The interior of the cutter is hollow. The centers of both sides of the cutter are fixedly connected to fixing rods. The end of the fixing rod away from the cutter is fixedly connected to a blocking block. The support rod is a U-shaped round rod, and the hanging rod is provided with a limit position near the support rod, the curvature of the limit position near the support rod is adapted to the outer contour of the support rod, and a spacing is left between the support rod and the frame body, the protruding size of the curvature of the limit position near the frame body is adapted to the size of the spacing, and a placement position is provided at the bottom of the hanging rod, and the curvature of the placement position near the fixing rod is adapted to the outer contour size of the fixing rod; The cooling assembly includes a collection box placed on the top of the elevator, the collection box is placed close to the frame, the top of the collection box is set to be open, the interior of the collection box is fixedly connected to oppositely distributed clamping rods, a cooling bin is placed between the clamping rods, the interior of the cooling bin is slidably connected to a supporting sheet, and one side of the supporting sheet is fixedly connected to a pulling sheet; The top of the cooling bin is open, and a second groove is formed on the top of the cooling bin, and the arc size of the second groove is adapted to the outer contour size of the fixing rod; A fixing pin is fixedly connected to the center of the supporting piece; When the cutter (12) falls with the cut pipe, the fixing rod (13) contacts the second groove (20), causing a collision; The rapidly falling annular tube falls on the fixed pin (27), and at this moment, the bottom of the cutter (12) and the cut annular tube are immersed in the cooling liquid, and the annular tube is stuck on the fixed pin (27) during the collision, and the rapid cooling and hardening of the cooling liquid causes the annular tube to separate from the cutter (12).

2. The plastic pipe production line according to claim 1, characterized in that: Bend portions are symmetrically provided at both ends of the clamping rod, and evenly distributed weakening grooves are provided at the center of the clamping rod in a direction close to the inner wall of the collecting box.

3. The plastic pipe production line according to claim 1, characterized in that: Arc-shaped grooves are symmetrically provided on both sides of the cooling bin near the top, and the inner wall dimensions of the arc-shaped grooves are adapted to the outer contour dimensions of the clamping rod.

4. The plastic pipe production line according to claim 1, characterized in that: A third groove is provided on the top of the cooling chamber at a position corresponding to the pulling piece, and a roller is fixedly connected to the inner wall of the third groove.

5. The plastic pipe production line according to claim 1, characterized in that: The cooling bin is symmetrically provided with sliding 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 sliding groove, and the outer contour size of the slider is adapted to the inner wall size of the sliding groove.

6. The plastic pipe production line according to claim 1, characterized in that: The bottoms of the supporting sheet and the pulling sheet are both penetrated by evenly distributed water-permeable holes.

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