Fixed-length cutting and conveying device for CPVC solid-wall guide pipe

Abstract

The invention relates to the technical field of CPVC solid-wall guide pipe cutting, and discloses a fixed-length cutting and conveying device for CPVC solid-wall guide pipes. The fixed-length cutting and conveying device comprises a frame, and connecting plates are fixedly welded to the two sides of the frame; the four sliding blocks are connected to the outer sides of the two guide rails in a sliding mode correspondingly. The cutting box is fixedly mounted at the top ends of the four sliding blocks; the first air cylinder is fixedly installed on the right side face of the left side connecting plate, and the ejector rod is fixedly installed at the end of a piston rod of the first air cylinder. According to the fixed-length cutting and conveying device for the CPVC solid-wall guide pipe, through cooperation of a first spring, a second spring, a first sliding rod, a second sliding rod, a first stabilizing block, a second stabilizing block, a first rolling shaft and a second rolling shaft in the horizontal direction and the vertical direction in the positioning assembly, the guide pipe can be automatically fixed to the center position of the fixing frame; and meanwhile, fixing assemblies on the two sides of the cutting box drive upper pressing blocks to move downwards along guide rods through second air cylinders, the upper pressing blocks are matched with lower pressing blocks to secondarily fix the guide pipes, the guide pipes are effectively prevented from deviating during cutting through a double-fixing structure, and the fixed-length cutting precision is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of CPVC solid wall pipe cutting, in particular to a CPVC solid wall pipe cutting device. BACKGROUND

[0002] The present application relates to the technical field of pipe processing, and is particularly applied to a plastic pipe production line, and aims to cut and convey CPVC solid wall pipes in a fixed size; in the processing of CPVC solid wall pipes, the pipes need to be cut into standard size sections for convenient transportation and use; the current industry mainly relies on two cutting methods, but both have obvious defects. The traditional cutting device adopts a fixed cutting mechanism, and the pipe conveying needs to be stopped before cutting; after the pipe is fixed by the fixing device, the fixed-length cutting is performed, which cannot be synchronized with the continuous pipe conveying, resulting in interruption of the processing flow, greatly reducing the production efficiency, and being difficult to meet the batch production demand. In recent years, automatic cutting equipment has been gradually promoted, which can realize synchronization of pipe conveying and cutting, but generally has problems of high equipment cost and complex maintenance process, increasing the production investment and operation and maintenance burden of enterprises; and the pipe conveying lacks a stable pipe fixing structure during cutting, which is easy to slide and deviate, cannot guarantee the cutting precision, and is difficult to meet the quality requirements of CPVC solid wall pipe standardization processing. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a CPVC solid wall pipe cutting device to solve the problems mentioned in the background.

[0004] To achieve the above purpose, the present application provides the following technical scheme: A CPVC solid wall pipe cutting device, comprising: A frame, both sides of the frame are fixedly welded with connecting plates; Two guide rails are fixedly installed between the two connecting plates and are symmetrically arranged, and four sliding blocks are respectively connected to the outer sides of the two guide rails; A cutting box is fixedly installed at the top end of the four sliding blocks; A cylinder and a top rod, the cylinder is fixedly installed on the right side of the left connecting plate, and the top rod is fixedly installed at the end of the cylinder piston rod; A pad is fixedly installed at the bottom of the cutting box and is correspondingly arranged with the top rod; The fixed assembly is provided with a fixed plate, a cylinder two, an upper pressing block, a guide rod, and a lower pressing block. The fixed plate is fixedly welded on both sides of the cutting box. The cylinder two is fixedly installed at the bottom end of the fixed plate. The end of the piston rod of the cylinder two is fixedly installed with the upper pressing block. The lower pressing block is fixed on the outside of the cutting box. The guide rod is fixedly installed on the top of the lower pressing block and is in sliding connection with the upper pressing block. The positioning assembly comprises a fixed frame, four sliding rods one, four stable blocks one, four rolling shafts one, four springs one, four sliding rods two, four springs two, four stable blocks two, and four rolling shafts two. Two horizontal plates are fixedly welded on the right side of the frame. The fixed frame is fixedly installed between the two horizontal plates. The four sliding rods one are in sliding connection inside the fixed frame and are horizontally arranged. The end of each of the four sliding rods one close to each other is fixedly installed with the stable block one. The spring one is arranged between the stable block one and the fixed frame. The rolling shaft one is rotatably connected between the two stable blocks one. The four sliding rods two are in sliding connection inside the fixed frame and are vertically arranged. The end of each of the four sliding rods two close to each other is fixedly installed with the stable block two. The spring two is arranged between the stable block two and the fixed frame. The rolling shaft two is rotatably connected between the two stable blocks two. The guide assembly comprises two guide plates one and two. The two guide plates one are fixed on the outside of the four stable blocks one and are correspondingly arranged with the two rolling shafts one. The two guide plates two are fixed on the outside of the four stable blocks two and are correspondingly arranged with the two rolling shafts two. The two guide plates one and two are obliquely arranged. The air guide pipe is fixedly installed on the right side of the fixed frame and is used for cleaning the debris on the outside of the pipeline. The plurality of inclined nozzles are used for cleaning the impurities on the outside of the pipeline in all directions. The plurality of inclined nozzles are communicatively arranged inside the air guide pipe. The tension belt is used for driving the cutting box to move to the left side when the cylinder one is retracted. The cylinder three, the U-shaped plate, the support plate, the motor, the cutting piece, and the blocking plate are fixedly installed inside the cutting box. The cylinder three is fixedly installed at the end of the piston rod of the cylinder three. The blocking plate is fixedly installed at the bottom end of the two U-shaped plates. The support plate is fixedly installed on the top of the blocking plate. The motor is fixedly installed on the outside of the support plate. The cutting piece is fixedly installed on the output end of the motor. The blocking plate is obliquely arranged. The inside of the cutting box is provided with an inclined surface. The blocking plate is fixedly installed on the outside of the two U-shaped plates and is used for shielding the cutting debris. The two rubber scrapers are fixedly installed on the outside of the blocking plate and are used for scraping the debris on the inside of the cutting box. The two collecting boxes are used for collecting the debris. The two collecting boxes are fixedly installed on both sides of the blocking plate and are arranged on the inside of the cutting box. Two rubber rings are arranged on the inner side of the cutting box to seal the gap between the cutting box and the pipe.

[0005] Preferably, the frame, connecting plate, guide rail, sliding block, cutting box, fixing plate, cross plate, fixing frame, U-shaped plate and support plate are made of high-strength steel.

[0006] Preferably, the first, second and third air cylinders are high-precision and high-thrust air cylinders, and the stroke and thrust of the air cylinders can be adjusted according to the cutting requirements of the CPVC solid-wall pipe.

[0007] Preferably, the first and second springs are high-strength and high-elasticity springs, which can provide stable elastic force to fix the CPVC solid-wall pipe.

[0008] Preferably, the surfaces of the first and second rollers are provided with anti-skid rubber layers to enhance the fixing effect of the CPVC solid-wall pipe.

[0009] Preferably, the motor is a high-speed and high-torque motor, and the speed and torque of the motor can meet the cutting requirements of the CPVC solid-wall pipe.

[0010] Preferably, the cutting blade is a special CPVC pipe cutting blade, and the material and structure of the cutting blade can ensure the flatness and cutting efficiency of the cutting surface.

[0011] Preferably, the control system is electrically connected with the first, second and third air cylinders and the motor, and is used for controlling the action sequence and operation parameters of the components.

[0012] Preferably, the control system comprises a PLC controller, and the cutting program is preset in the PLC controller, so that the device can be automatically controlled according to the input cutting length and other parameters.

[0013] Preferably, the length of the guide rail is greater than or equal to twice the maximum single cutting length of the CPVC solid-wall pipe, so as to ensure that the cutting box has sufficient moving space.

[0014] Compared with the prior art, the CPVC solid-wall pipe cutting device has the following advantages: 1. The CPVC solid-wall pipe cutting device has accurate and stable positioning, and can ensure cutting accuracy. The device can automatically fix the pipe at the center of the fixing frame through the cooperation of the first and second springs, the first and second sliding rods, the first and second stabilizing blocks and the first and second rollers in the horizontal and vertical directions of the positioning assembly. Meanwhile, the upper pressing block of the fixing assembly on the two sides of the cutting box is driven by the second air cylinder to move downward along the guide rod, and cooperates with the lower pressing block to fix the pipe again, so that the double fixing structure can effectively avoid the deviation of the pipe during cutting, and significantly improve the cutting accuracy.

[0015] 2. The CPVC solid wall conduit cutting and conveying device, cutting and cleaning linkage, improving work efficiency: during cutting, cylinder one drives the cutting box to move, cylinder three drives the cutting piece to rise and fall, and the motor drives the cutting piece to rotate synchronously, realizing continuous and efficient cutting; after cutting is completed, the inclined blocking plate cooperates with the inclined surface inside the cutting box to automatically discharge cutting debris, without manual additional cleaning, reducing work interruption time, and improving the cutting work efficiency as a whole.

[0016] 3. The CPVC solid wall conduit cutting and conveying device has strong structure adaptability and wide application range: the spring in the positioning assembly can adapt to CPVC solid wall conduits of different diameters through its own elastic force, the stroke and thrust of cylinder one, cylinder two and cylinder three can be adjusted according to cutting requirements, and the length of the guide rail meets the movement requirements of the maximum cutting length of the conduit at a time, so that the cutting work of conduits of various specifications can be adapted without frequent replacement of equipment or adjustment of structure, and the application range is wide.

[0017] 4. The CPVC solid wall conduit cutting and conveying device has high operation automation degree and reduces labor cost: all actions (cutting box resetting, conduit positioning and fixing, cutting execution and cleaning resetting) of the device are completed through the cooperation of cylinders and motors, without manual adjustment or operation of key cutting links, labor intervention is reduced, labor operation strength and cost are reduced, and the influence of manual operation error on cutting quality is avoided.

[0018] 5. The CPVC solid wall conduit cutting and conveying device has durable and reliable structure and prolongs the service life of the equipment: the core components such as frame, connecting plate, guide rail and cutting box are designed with high-strength structure, which can withstand the impact force in the cutting process and the weight of the components, reducing the deformation or damage of the structure; the key components such as spring, cylinder and motor have stable performance, can maintain normal operation of the device for a long time, reduce the probability of equipment failure, and prolong the overall service life. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure perspective view of the present application; Figure 2 It is a structure side view of the present application; Figure 3 It is a structure bottom view of the present application; Figure 4 It is a perspective view of the positioning frame and its related structure of the present application; Figure 5 It is a schematic view of the fixing assembly of the present application; Figure 6 It is a side view and sectional view of the cutting box of the present application; Figure 7 It is a perspective view of the blocking plate and its related structure of the present application.

[0020] In the figure: 1, frame; 2, connecting plate; 3, guide rail; 4, sliding block; 5, tension belt; 6, cutting box; 7, cylinder I; 8, ejector rod; 9, cushion block; 10, fixed plate; 11, cylinder II; 12, upper pressing block; 13, guide rod; 14, lower pressing block; 15, cross plate; 16, fixed frame; 17, sliding rod I; 18, stabilizing block I; 19, roller I; 20, spring I; 21, sliding rod II; 22, spring II; 23, stabilizing block II; 24, roller II; 25, cylinder III; 26, U-shaped plate; 27, support plate; 28, motor; 29, cutting blade; 30, plugging plate; 31, guide plate I; 32, guide plate II; 33, air guide pipe; 34, inclined nozzle; 35, shielding plate; 36, rubber scraper; 37, collection box. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] Embodiment: Please refer to Figures 1-7 , A CPVC solid-wall pipe cutting and conveying device comprises: A frame 1, both sides of the frame 1 are fixedly welded with connecting plates 2; Guide rails 3 and sliding blocks 4, two guide rails 3 are fixedly installed between the two connecting plates 2 and are symmetrically arranged, and four sliding blocks 4 are respectively slidably connected to the outer sides of the two guide rails 3; A cutting box 6, which is fixedly installed at the top end of the four sliding blocks 4; A cylinder I 7 and an ejector rod 8, the cylinder I 7 is fixedly installed on the right side surface of the left connecting plate 2, and the ejector rod 8 is fixedly installed at the end of the piston rod of the cylinder I 7; A cushion block 9, which is fixedly installed at the bottom of the cutting box 6 and is correspondingly arranged with the ejector rod 8; A fixing assembly, the fixing assembly is arranged on both sides of the cutting box 6 and comprises a fixed plate 10, a cylinder II 11, an upper pressing block 12, a guide rod 13, and a lower pressing block 14, the fixed plate 10 is fixedly welded on both sides of the cutting box 6, the cylinder II 11 is fixedly installed at the bottom end of the fixed plate 10, the end of the piston rod of the cylinder II 11 is fixedly installed with the upper pressing block 12, the lower pressing block 14 is fixedly installed on the outer side of the cutting box 6, the guide rod 13 is fixedly installed at the top of the lower pressing block 14, and the guide rod 13 is slidably connected with the upper pressing block 12; The positioning assembly comprises a fixed frame 16, four sliding rods 17, four stabilizing blocks 18, four rolling shafts 19, four springs 20, four sliding rods 21, four springs 22, four stabilizing blocks 23, four rolling shafts 24, two horizontal plates 15 are fixedly welded on the right side of the frame 1, the fixed frame 16 is fixedly installed between the two horizontal plates 15, the four sliding rods 17 are slidingly connected in the interior of the fixed frame 16 and are horizontally arranged, the stabilizing blocks 18 are fixedly installed at the ends of the four sliding rods 17 close to each other, the springs 20 are arranged between the stabilizing blocks 18 and the fixed frame 16, the rolling shafts 19 are rotatably connected between the two stabilizing blocks 18, the four sliding rods 21 are slidingly connected in the interior of the fixed frame 16 and are vertically arranged, the stabilizing blocks 23 are fixedly installed at the ends of the four sliding rods 21 close to each other, the springs 22 are arranged between the stabilizing blocks 23 and the fixed frame 16, and the rolling shafts 24 are rotatably connected between the two stabilizing blocks 23. The guide assembly comprises two guide plates 31 and two guide plates 32, the two guide plates 31 are fixed on the outer sides of the four stabilizing blocks 18 respectively and are correspondingly arranged with the two rolling shafts 19 respectively, the two guide plates 32 are fixed on the outer sides of the four stabilizing blocks 23 respectively and are correspondingly arranged with the two rolling shafts 24 respectively, and the two guide plates 31 and the two guide plates 32 are obliquely arranged. The air guide pipe 33 is used for cleaning the clutters outside the pipeline, and the air guide pipe 23 is fixedly installed on the right side of the fixed frame 16. The plurality of inclined nozzles 34 are used for cleaning the impurities outside the pipeline in all directions, and the plurality of inclined nozzles 34 are communicatively arranged in the interior of the air guide pipe 23. The tension belt 5 is used for driving the cutting box 6 to move to the left side when the air cylinder 7 is retracted. The two air cylinders 25, the U-shaped plates 26, the supporting plates 27, the motor 28, the cutting blades 29 and the blocking plates 30 are fixedly installed in the interior of the cutting box 6, the two U-shaped plates 26 are fixedly installed at the ends of the piston rods of the air cylinders 25 respectively, the blocking plate 30 is fixedly installed at the bottom end of the two U-shaped plates 26, the supporting plate 27 is fixedly installed on the top of the blocking plate 30, the motor 28 is fixedly installed on the outer side of the supporting plate 27, the cutting blades 29 are fixedly installed at the output end of the motor 28, the blocking plate 30 is obliquely arranged, and the interior of the cutting box 6 is provided with an inclined surface. The shielding plate 35 is used for shielding the cutting clutters, and the shielding plate 35 is fixedly installed on the outer sides of the two U-shaped plates 26. The two collecting boxes 37 are used for collecting the clutters, and the two collecting boxes 37 are fixedly installed on the two sides of the blocking plate 30 and are arranged in the interior of the cutting box 6. The two rubber rings are used for blocking the gap between the guide pipe and the cutting box 6, and the two rubber rings are fixedly installed in the interior of the cutting box 6. Specifically, the initial reset stage: before the device starts, the cylinder 7 is in the extended state, the top rod 8 at the end of the piston rod is in close contact with the cushion block 9 at the bottom of the cutting box 6, and pushes the cutting box 6 to slide to the rightmost end along the guide rail 3 between the two connecting plates 2 through the four sliders 4 at the bottom, reserving space for pipe loading; Pipe positioning stage: the CPVC solid wall pipe to be cut is inserted from one side of the fixed frame 16 of the positioning assembly, the pipe will first contact the guide plate two 32 arranged obliquely, and then gradually push open the guide plate two 32, at this time the roller two 24 will also be opened, the pipe will first contact the roller two 24, and then the pipe will push open the guide plate one 31, facilitating the pipe to pass through the inside of the positioning assembly, which can achieve the effect of conveniently passing through the pipe, and the pipe continues to extend to the inside of the cutting box 6 after passing through the fixed frame 16; at this time, the four slide rods one 17 arranged horizontally in the fixed frame 16 drive the end stable blocks one 18 to move towards the pipe under the elastic force of the springs one 20, so that the roller one 19 between the two stable blocks one 18 is attached to the outer wall of the pipe; at the same time, the four slide rods two 21 arranged vertically drive the stable blocks two 23 and the roller two 24 to attach to the outer wall of the pipe under the elastic force of the springs two 22, finally accurately fixing the pipe at the center position of the fixed frame 16, ensuring that the pipe does not deviate during cutting; The air guide pipe 33 is connected with the air supply pipe, when the pipe enters the inside of the positioning assembly, the air supply starts, high-pressure gas will enter the inside of the air guide pipe 33, and finally be sprayed out through the annular array of inclined nozzles 34, to realize the effect of cleaning the impurities outside the pipe, and clean and blow the outer wall of the pipe, which can ensure the accuracy of positioning (avoiding dust affecting the contact between the roller and the pipe wall), and at the same time keep the working environment clean and prolong the service life of the equipment; Pipe fixing stage: after the pipe is positioned, the cylinder two 11 in the fixing assembly on both sides of the cutting box 6 starts, the piston rod drives the end upper pressing block 12 to slide downward along the guide rod 13 at the top of the lower pressing block 14, until the upper pressing block 12 is in close contact with the outer wall of the pipe, to fix the pipe from both sides of the cutting box 6 for the second time, further improving the stability of the pipe during cutting; Cutting execution stage: after the pipe is fixed, the piston rod of the cylinder one 7 retracts, the top rod 8 separates from the cushion block 9, at this time the tension belt 5 plays a role, driving the cutting box 6 to move smoothly to the left side along the guide rail 3 through the slider 4; at the same time, the two cylinder threes 25 in the cutting box 6 start, the piston rod drives the end U-shaped plate 26 and the blocking plate 30 to move upward, the support plate 27 at the top of the blocking plate 30 rises, and then drives the motor 28 and the cutting blade 29 to move upward, the motor 28 drives the cutting blade 29 to rotate at high speed after starting, and the rotating cutting blade 29 cuts the pipe to a fixed size during the leftward movement of the cutting box 6; Debris cleaning and device resetting stage: after cutting is completed, the piston rod of cylinder three 25 is retracted, driving the blocking plate 30, the support plate 27, the motor 28 and the cutting blade 29 to move downward. Since the blocking plate 30 is arranged in an inclined manner and the inside of the cutting box 6 is provided with an inclined surface, the debris generated in the cutting process slides along the inclined surface of the blocking plate 30 and the cutting box 6 and falls into the inside of the collection box 37 on both sides, completing the debris collection work and automatically discharging the inside of the cutting box 6. When the U-shaped plate 26 moves downward, it will drive the shielding plate 35 to move downward and drive the rubber scraping plates 36 on both sides to move downward, thereby cleaning the debris inside the cutting box 6 and achieving the effect of scraping out the debris; The setting of the rubber ring can ensure that there is no gap between the guide pipe and the cutting box 6, reduce the flying of cutting debris, and reduce the splashing of debris; Subsequently, the piston rod of cylinder two 11 is retracted, driving the upper pressing block 12 to move upward along the guide rod 13 and separate from the lower pressing block 14, thereby releasing the fixation of the guide pipe. Finally, the piston rod of cylinder one 7 is extended again, the ejector rod 8 pushes the pad 9, and the cutting box 6 slides to the rightmost end along the guide rail 3, thereby completing the device resetting and waiting for the next cutting operation. In the embodiment, the frame 1, the connecting plate 2, the guide rail 3, the sliding block 4, the cutting box 6, the fixed plate 10, the horizontal plate 15, the fixed frame 16, the U-shaped plate 26 and the support plate 27 are all made of high-strength steel materials. Specifically, the frame 1 serves as the support basis of the entire device and needs to bear the weight of the positioning assembly, the cutting box 6, the cylinder and other components. The high-strength steel material can avoid deformation of the frame 1 due to excessive load bearing and ensure the overall stability of the device. The connecting plate 2 connects the frame 1 and the guide rail 3, and the guide rail 3 cooperates with the sliding block 4 to realize the movement of the cutting box 6. The connecting plate 2 and the guide rail 3 made of high-strength steel materials can bear the friction and impact forces during the movement of the cutting box 6, thereby avoiding component wear or deformation and ensuring the stability of the movement of the cutting box 6. The fixed plate 10, the horizontal plate 15 and the fixed frame 16 are respectively used for fixing the cylinder two 11 and supporting the positioning assembly. The high-strength steel material can ensure that these components are not damaged under the action of spring elastic force and guide pipe fixation force, thereby ensuring the reliable realization of the positioning and fixation functions. The U-shaped plate 26 and the support plate 27 need to bear the weight of the motor 28 and the cutting blade 29 and the reaction force during cutting. The high-strength steel material can prevent bending or breaking, thereby ensuring the stability of the cutting process. In the embodiment, the cylinder one 7, the cylinder two 11 and the cylinder three 25 are all high-precision and high-thrust cylinders. The stroke and thrust of the cylinders can be adjusted according to the cutting requirements of the CPVC solid-wall guide pipe. Specifically, the first cylinder 7 is responsible for pushing the cutting box 6 back to its original position and moving the cutting box 6 along with the tension belt 5. The high thrust force ensures that the cutting box 6 can move smoothly along the guide rail 3 even when carrying the weight of the motor 28 and cutting blade 29. The high-precision control ensures the accuracy of the cutting box 6 movement, thereby realizing the cutting of the conduit to a specified length. By adjusting the stroke of the first cylinder 7 according to the cutting length of the conduit, the device can adapt to the cutting needs of conduits of different specifications. The second cylinder 11 is used to drive the upper pressing block 12 to fix the conduit. The high thrust force ensures that the upper pressing block 12 tightly fits the conduit with the lower pressing block 14, preventing the conduit from loosening during cutting. By adjusting the thrust force of the second cylinder 11 according to the conduit diameter, the device can avoid either insufficient fixation or damage to the conduit due to excessive thrust force. The high-precision control ensures the accuracy of the downward movement of the upper pressing block 12, ensuring consistent fixation position. The third cylinder 25 is responsible for lifting and lowering the cutting blade 29. The high thrust force can overcome the weight of the motor 28 and cutting blade 29 as well as the cutting reaction force, ensuring the stable lifting and lowering of the cutting blade 29. By adjusting the stroke of the third cylinder 25 according to the conduit diameter, the cutting blade 29 can accurately reach the cutting position. The high-precision control ensures the smooth lifting and lowering speed of the cutting blade 29, avoiding uneven cutting surface caused by rapid lifting and lowering. In the embodiment: both the first spring 20 and the second spring 22 are high-strength and high-elasticity coefficient springs, which can provide stable elastic force to fix the CPVC solid-wall conduit. Specifically, the high-strength characteristic ensures that the springs are not prone to fatigue fracture or permanent deformation during long-term stretching and contraction, prolonging the service life of the springs and ensuring the long-term stable operation of the positioning assembly. The high-elasticity coefficient means that the springs can generate greater elastic force when subjected to the same compression amount. When the conduit is inserted into the fixing frame 16, the first spring 20 and the second spring 22 can quickly push the stable block 18, the stable block 23, the roller 19, and the roller 24 to tightly fit the outer wall of the conduit through their own elastic force, forming a stable clamping force. Regardless of slight differences in the diameter of the conduit to be cut, the high-elasticity coefficient of the springs can adapt to the change in the diameter by deforming itself, always maintaining sufficient elastic force to fix the conduit at the center position, avoiding positioning failure due to diameter fluctuations, and improving the adaptability of the device to conduits of different specifications. In the embodiment: the surfaces of the roller 19 and the roller 24 are provided with anti-slip rubber layers to enhance the fixing effect on the CPVC solid-wall conduit. Specifically, the surface of the CPVC solid-wall conduit is relatively smooth. If the surface of the roller is not treated with anti-slip, relative sliding between the roller and the conduit may occur during the insertion or cutting process of the conduit, causing the conduit to be positioned off-center and affecting the cutting precision. The anti-slip rubber layer has a high coefficient of friction. When the roller 19 and the roller 24 fit the outer wall of the conduit, the rubber layer can increase the static friction between the roller and the conduit, effectively preventing relative sliding between the conduit and the roller. At the same time, the rubber layer has a certain elasticity, can be closely attached to the surface of the conduit, further enhances the clamping stability, especially in the cutting process, can offset the impact of the cutting reaction force on the conduit, avoid the displacement of the conduit in the positioning assembly, ensure the cutting accuracy; In the embodiment: the motor 28 is a high-speed and high-torque motor 28, whose speed and torque can meet the cutting requirements of the CPVC solid-wall conduit; Specifically, the high-speed characteristic can make the motor 28 drive the cutting blade 29 to rotate at high speed. According to the CPVC material characteristics, the cutting blade 29 rotating at high speed can quickly cut off the conduit, reduce the cutting time, and improve the cutting efficiency. At the same time, the high speed can make the cutting blade 29 generate a larger cutting force when it contacts the conduit, avoiding the cutting blade 29 from being stuck and the conduit from being torn due to too low speed, and ensuring the flatness of the cutting surface; The high-torque characteristic can ensure that the motor 28 can maintain stable speed when driving the cutting blade 29 to cut the conduit even if the local material of the conduit is relatively hard or the cutting resistance increases. The cutting blade 29 will be subjected to the reaction force of the conduit during the cutting process. The high-torque motor 28 can overcome the reaction force to maintain the stable operation of the cutting blade 29, ensure the continuity and smoothness of the cutting process, and avoid cutting failure or irregular cutting surface due to insufficient torque; In the embodiment: the cutting blade 29 is a special CPVC pipe cutting blade 29, whose material and structure can ensure the flatness of the cutting surface and the cutting efficiency; Specifically, from the material point of view, the special cutting blade 29 is usually made of a material with moderate hardness and certain toughness, which can effectively cut off the CPVC conduit to avoid rapid wear of the cutting blade 29 due to too soft material, and prevent the conduit from bursting or generating a large amount of debris due to too hard material; From the structure point of view, the edge design of the special cutting blade 29 meets the cutting requirements of the CPVC pipe. The parameters such as edge angle and tooth number are optimized to reduce the extrusion of the conduit during cutting and reduce the risk of conduit deformation. At the same time, reasonable structure design can make the cutting blade 29 more smoothly during the cutting process, avoiding the accumulation of debris on the cutting surface affecting the cutting accuracy; In summary, the material and structure of the special cutting blade 29 can ensure high flatness and no burr of the cutting surface, while improving the cutting efficiency, reducing the damage to the conduit during the cutting process, and ensuring the cutting quality of the CPVC solid-wall conduit; In the embodiment: it also includes a control system electrically connected with the cylinder one 7, the cylinder two 11, the cylinder three 25, and the motor 28, for controlling the action sequence and operation parameters of each component; Specifically, the control system as the core processor of the device can receive instructions such as cutting length and cutting speed input by the operator, and send control signals to the cylinder 7, the cylinder 11, the cylinder 25 and the motor 28 according to the preset logic, and coordinate the action sequence of each component; In an embodiment: the control system comprises a PLC controller, and the cutting program is preset in the PLC controller, which can automatically control the operation of the device according to the input parameters such as cutting length; Specifically, the cutting program is pre-written in the PLC controller, and the program contains cutting parameters of different specifications of catheters, such as the moving distance of the cutting box 6 corresponding to the cutting length, the cylinder stroke, the motor 28 speed, etc. The operator only needs to input the specification parameters such as cutting length of the catheter to be cut on the operation interface of the PLC controller, and the PLC controller will call the preset program to automatically calculate and send control signals to each component: Send signals to the cylinder 7 to control its stroke to ensure that the moving distance of the cutting box 6 matches the cutting length; Send signals to the cylinder 11 and the cylinder 25 to adjust their thrust and stroke to adapt to the current catheter specification; Send signals to the motor 28 to set the corresponding speed to ensure cutting efficiency and quality; The whole process does not need manual intervention for parameter adjustment of each component, realizes automatic and precise operation of the device, reduces manual operation error, improves cutting efficiency and consistency, and is especially suitable for batch cutting operation; In an embodiment: the length of the guide rail 3 is greater than or equal to 2 times the maximum single cutting length of the CPVC solid wall catheter, so as to ensure that the cutting box 6 has enough moving space; Specifically, when the device is cutting, the cutting box 6 needs to move from the rightmost feeding position to the left side, and the moving distance needs to be at least equal to the maximum single cutting length of the catheter, so as to ensure that the cutting blade 29 can completely cut off the catheter; After cutting is completed, the cutting box 6 needs to be reset to the rightmost end to reserve space for the next feeding and cutting, and the cutting box 6 also needs to move a distance corresponding to the cutting length during the resetting process; Therefore, the length of the guide rail 3 needs to be at least 2 times the maximum single cutting length, so as to meet the space requirements of the cutting movement and the resetting movement of the cutting box 6, avoid the situation that the cutting box 6 cannot move to the specified position due to insufficient length of the guide rail 3, and thus cannot complete cutting or resetting, ensure that the device can adapt to the cutting requirements of catheters with different lengths, and improve the application range of the device; Working principle: initial reset: the cylinder 7 is extended, the top rod 8 pushes the bottom pad 9 of the cutting box 6, the cutting box 6 is moved to the rightmost end along the guide rail 3 with the sliding block 4, and the connecting plates 2 on both sides of the frame 1 provide support for the guide rail 3; Pipe positioning: The catheter is fixed in the center of the fixed frame 16 through the cooperation of the spring 20, the sliding rod 17, the stabilizer 18 and the roller 19, the spring 22, the sliding rod 21, the stabilizer 23 and the roller 24. Pipe fixing: The upper pressing block 12 moves downward along the guide rod 13 to fix the catheter with the lower pressing block 14 through the activation of the cylinder 11 on both sides of the cutting box 6. Cutting execution: The cutting box 6 moves left under the pulling force of the pulling belt 5 through the retraction of the cylinder 7; the cutting piece 29 rotates to cut the catheter under the driving of the motor 28; the cutting piece 29, the motor 28, the support plate 27 and the blocking plate 30 move upward under the driving of the cylinder 25. Cleaning and resetting: The cylinder 25 retracts to discharge the debris along the inclined blocking plate 30 and the cutting box 6; the cylinder 11 retracts to release the fixation; the cylinder 7 pushes the cutting box 6 to reset and wait for the next operation.

[0023] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cut-to-length transfer device for CPVC solid wall conduit, characterized by, The utility model relates to a cutting device for cutting pipe, which comprises the following: A frame (1) is provided with a connecting plate (2) on both sides; Two guide rails (3) are symmetrically arranged between the two connecting plates (2), and four sliding blocks (4) are respectively connected to the outer sides of the two guide rails (3); A cutting box (6) is fixedly installed at the top of the four sliding blocks (4); A cylinder (7) is fixedly installed on the right side of the left connecting plate (2), and a top rod (8) is fixedly installed on the end of the piston rod of the cylinder (7); A cushion block (9) is fixedly installed at the bottom of the cutting box (6) and corresponds to the top rod (8); A fixing assembly is arranged on both sides of the cutting box (6) and comprises a fixing plate (10), a cylinder (11), an upper pressing block (12), a guide rod (13), and a lower pressing block (14). The fixing plate (10) is fixedly welded on both sides of the cutting box (6), the cylinder (11) is fixedly installed at the bottom end of the fixing plate (10), the upper pressing block (12) is fixedly installed at the end of the piston rod of the cylinder (11), the lower pressing block (14) is fixed on the outer side of the cutting box (6), the guide rod (13) is fixedly installed at the top of the lower pressing block (14), and the guide rod (13) is slidably connected to the upper pressing block (12); A positioning assembly comprises a fixed frame (16), a sliding rod (17), a stabilizing block (18), a roller (19), a spring (20), a sliding rod (21), a spring (22), a stabilizing block (23), and a roller (24). Two horizontal plates (15) are fixedly welded on the right side of the frame (1), the fixed frame (16) is fixedly installed between the two horizontal plates (15), the four sliding rods (17) are slidably connected inside the fixed frame (16) and are horizontally arranged, the stabilizing blocks (18) are fixedly installed at the ends of the four sliding rods (17) close to each other, the springs (20) are arranged between the stabilizing blocks (18) and the fixed frame (16), the rollers (19) are rotatably connected between the two stabilizing blocks (18), the four sliding rods (21) are slidably connected inside the fixed frame (16) and are vertically arranged, the stabilizing blocks (23) are fixedly installed at the ends of the four sliding rods (21) close to each other, the springs (22) are arranged between the stabilizing blocks (23) and the fixed frame (16), and the rollers (24) are rotatably connected between the two stabilizing blocks (23); A guide assembly comprises a guide plate (31) and a guide plate (32). The two guide plates (31) are respectively fixed on the outer sides of the four stabilizing blocks (18) and correspond to the two rollers (19), the two guide plates (32) are respectively fixed on the outer sides of the four stabilizing blocks (23) and correspond to the two rollers (24), and the two guide plates (31) and the two guide plates (32) are obliquely arranged; A gas guide pipe (33) is used for cleaning the outer side of the pipeline, and the gas guide pipe (33) is fixedly installed on the right side of the fixed frame (16). A plurality of inclined nozzles (34) are arranged in the inside of the air guide pipe (23) for cleaning the impurities on the outside of the pipe. A tension belt (5) is arranged to drive the cutting box (6) to move left when the air cylinder (7) retracts. Two air cylinders (25), two U-shaped plates (26), a support plate (27), a motor (28), a cutting blade (29), and a blocking plate (30) are fixedly installed in the inside of the cutting box (6). The two U-shaped plates (26) are fixedly installed at the ends of the piston rods of the two air cylinders (25). The blocking plate (30) is fixedly installed at the bottom of the two U-shaped plates (26). The support plate (27) is fixedly installed at the top of the blocking plate (30). The motor (28) is fixedly installed at the outside of the support plate (27). The cutting blade (29) is fixedly installed at the output end of the motor (28). The blocking plate (30) is arranged in an inclined manner. The inside of the cutting box (6) is provided with an inclined surface. Two shielding plates (35) are fixedly installed at the outside of the two U-shaped plates (26) for shielding the cutting debris. Two rubber scrapers (26) are fixedly installed at the outside of the shielding plates (35) for scraping the debris inside the cutting box (6). Two collecting boxes (37) are fixedly installed at the two sides of the blocking plate (30) for collecting the debris. The two collecting boxes (37) are arranged in the inside of the cutting box (6). Two rubber rings are fixedly installed in the inside of the cutting box (6) for blocking the gap between the guide pipe and the cutting box (6).

2. The CPVC solid wall conduit's cut-to-length transfer apparatus of claim 1 wherein, The frame (1), the connecting plate (2), the guide rail (3), the sliding block (4), the cutting box (6), the fixed plate (10), the cross plate (15), the fixed frame (16), the U-shaped plate (26), and the support plate (27) are all made of high-strength steel.

3. The CPVC solid wall conduit cut-to-length transfer apparatus of claim 1 wherein, The air cylinder (7), the air cylinder (11), and the air cylinder (25) are all high-precision and high-thrust cylinders. The stroke and thrust of the cylinders can be adjusted according to the cutting requirements of the CPVC solid-wall guide pipe.

4. The CPVC solid wall conduit cut-to-length transfer apparatus of claim 1 wherein, The spring (20) and the spring (22) are both high-strength and high-elasticity springs, which can provide stable elastic force to fix the CPVC solid-wall guide pipe.

5. The CPVC solid wall conduit cut-to-length transfer apparatus of claim 1 wherein, The surfaces of the roller (19) and the roller (24) are both provided with anti-slip rubber layers to enhance the fixing effect of the CPVC solid-wall guide pipe.

6. The CPVC solid wall conduit cut-to-length transfer apparatus of claim 1 wherein, The motor (28) is a high-speed and high-torque motor, and the speed and torque of the motor can meet the cutting requirements of the CPVC solid-wall guide pipe.

7. The CPVC solid wall conduit cut-to-length transfer apparatus of claim 1 wherein, The cutting blade (29) is a special CPVC pipe cutting blade, and the material and structure of the cutting blade can ensure the flatness and cutting efficiency of the cutting surface.

8. The CPVC solid wall conduit cut-to-length transfer apparatus of claim 1 wherein, The control system is electrically connected with the air cylinder (7), the air cylinder (11), the air cylinder (25), and the motor (28) to control the action sequence and operation parameters of the components.

9. The CPVC solid wall conduit cut-to-length transfer apparatus of claim 8, wherein, The control system includes a PLC controller, which has a preset cutting program and can automatically control the operation of the device according to the input cutting length and other parameters.

10. The CPVC solid wall conduit cut-to-length transfer apparatus of claim 1 wherein, The length of the guide rail (3) is greater than or equal to 2 times the maximum single cutting length of the CPVC solid-wall pipe, so as to ensure that the cutting box (6) has sufficient moving space.

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