A plastic pipe cutting device that prevents melt deformation

Abstract

This utility model provides a plastic pipe cutting device to prevent melt deformation, relating to the field of plastic pipe cutting technology. It includes a processing table, with a processing box installed at one end of the upper surface of the processing table. A cutting mechanism is installed inside the processing box, and raw material is movably installed inside the processing box, located within the cutting mechanism. Support plates are installed at the front and rear ends of the upper surface of the processing table, away from the processing box. In this utility model, temporary storage boxes are set at the upper ends of the front and rear sides inside the processing box, and several nozzles are installed on the side of the temporary storage boxes near the raw material. After a cooling medium is delivered to the temporary storage box through a water inlet pipe, it is sprayed onto the plastic pipe being cut by the nozzles. This allows the cooling medium to promptly remove heat generated when the annular blade rotates at high speed to cut the plastic pipe, preventing localized overheating of the plastic pipe and effectively preventing melt deformation.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe cutting technology, and more specifically, to a plastic pipe cutting device that prevents melt deformation. Background Technology

[0002] Plastic pipes are a type of pipe material made from synthetic resins, such as polyvinyl chloride and polyethylene, as the main raw materials, with the addition of stabilizers, lubricants, plasticizers and other additives, through extrusion molding. After the plastic pipes are produced, cutting equipment is often needed to cut them to a fixed length. For example, the plastic pipe fixed length cutting device proposed in application number "CN201922383228.4" includes a fixed plate, a fixed groove on the top outer wall of the fixed plate, a sliding groove on one side outer wall of the fixed groove, and a stop block connected to one end of the fixed plate near the sliding groove by bolts. A sliding rod is welded to one side outer wall of the stop plate, and the stop plate is slidably connected to the inside of the sliding groove through the sliding rod. A positioning bolt is threaded to one side outer wall of the sliding rod. A protective shell is bolted to one side outer wall of the fixed plate, and a flexible ruler is installed inside the protective shell. One end of the flexible ruler is connected to one side outer wall of the sliding rod by a positioning bolt.

[0003] However, in the above technical solutions, when cutting plastic pipes, the saw blade generates a lot of heat during high-speed rotation. This heat is easily conducted to the cutting part of the plastic pipe, causing the local temperature of the plastic pipe to be too high, resulting in melting deformation. This not only affects the dimensional accuracy of the cut plastic pipe, making it unable to meet production requirements, but may also cause problems such as burrs and unevenness on the cutting edge, seriously affecting the quality and appearance of the product. Therefore, we propose a plastic pipe cutting device that prevents melting deformation to solve the above problems. Utility Model Content

[0004] The main purpose of this invention is to provide a plastic pipe cutting device that prevents melt deformation. This solves the problem that when cutting plastic pipes, the saw blade generates a lot of heat during high-speed rotation. This heat is easily conducted to the cutting part of the plastic pipe, causing the local temperature of the plastic pipe to be too high, which in turn leads to melt deformation. This not only affects the dimensional accuracy of the cut plastic pipe, making it unable to meet production requirements, but may also cause problems such as burrs and unevenness on the cutting edge, seriously affecting the quality and appearance of the product.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A plastic pipe cutting device for preventing melt deformation includes a processing table. A processing box is installed at one end of the upper surface of the processing table. A cutting mechanism is installed inside the processing box. Raw material is movably installed inside the processing box and located inside the cutting mechanism. Support plates are installed at the front and rear ends of the upper surface of the processing table away from the processing box. Conveying rollers are movably installed at the upper and lower ends of the support plates on their closest side. The raw material is movably located between the conveying rollers and in contact with them. Gears are installed at the rear ends of the conveying rollers, and the gears are meshed together. A cutting mechanism is installed at the lower end of the front surface of the support plate. The system includes a second motor connected to the front end of the conveyor roller. The cutting mechanism includes a positioning frame movably installed in the upper middle of the processing box. A rotating shaft is movably installed through the lower end of the positioning frame. A ring-shaped blade is installed on the outer side of the shaft. The ring-shaped blade and the raw material are parallel vertically. Temporary storage boxes are installed on the upper ends of the front and rear sides of the processing box. Several nozzles are installed through the side of the temporary storage box near the raw material. A connecting hole is provided at the lower end of the processing box. The upper end of the connecting hole is connected through the temporary storage box. A water inlet pipe is installed through the lower end of the connecting hole.

[0007] Preferably, auxiliary rollers are movably installed at the upper and lower ends of both sides inside the processing box, the raw material is movably located between the auxiliary rollers, and the raw material and the auxiliary rollers are in contact with each other. A cylinder is installed on the upper surface of the processing box, and the output end of the cylinder movably passes through the upper end of the processing box and is connected to the positioning frame.

[0008] Preferably, wiping cylinders are movably installed through the lower ends of both sides of the processing box, and flanges are installed on the opposite sides of the wiping cylinders. The flanges are connected to the processing box by bolts, and the tube of the raw material is movably installed through the flanges and the wiping cylinders.

[0009] Preferably, a second sprocket is installed at one end of the shaft, a first motor is installed at the upper inside of the positioning frame, a first sprocket is installed at the output end of the first motor, and a chain is sleeved between the first sprocket and the second sprocket.

[0010] Preferably, the processing table has a groove inside and near the processing box. A drain pipe is installed through the groove and the lower end of the processing box. A threaded pipe is installed through the lower end of the groove. A filter cylinder is installed inside the threaded pipe by threads. The upper end of the filter cylinder is in contact with the upper surface of the groove.

[0011] Preferably, the upper part of the filter cylinder is provided with a filter groove, the drain pipe is located inside the filter groove, several filter layers are installed inside the filter groove, several drain ports are provided through the lower part of the filter groove, and a connecting pipe is installed through the lower part of the groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) In this utility model, a temporary storage box is set at the upper end of the front and rear sides inside the processing box, and several nozzles are installed on the side of the temporary storage box near the raw material. After the cooling medium is transported to the temporary storage box by the water inlet pipe, it is sprayed by the nozzles onto the plastic pipe being cut. This allows the cooling medium to carry away the heat in time when the ring blade generates heat by cutting the plastic pipe at high speed, thus avoiding excessive local temperature of the plastic pipe and effectively preventing the plastic pipe from melting and deforming.

[0014] (2) The groove, drain pipe, filter cylinder and other structures set inside the processing table near the processing box in this utility model can collect and filter the cooling medium after use, which facilitates the recycling of the cooling medium, reduces production costs, and ensures stable operation of the equipment. At the same time, the wiping cylinders at the lower ends of both sides inside the processing box can wipe the surface of the plastic tube before it enters the cutting area and after cutting to remove surface impurities and moisture, and prevent impurities from affecting the cutting effect and equipment operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a plastic pipe cutting device for preventing melt deformation according to this utility model;

[0016] Figure 2 This is a front view schematic diagram of a plastic pipe cutting device for preventing melt deformation according to this utility model;

[0017] Figure 3 This is a side view of the plastic pipe cutting device for preventing melt deformation according to this utility model.

[0018] Figure 4 This utility model relates to a plastic pipe cutting device that prevents melt deformation. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 5 This utility model relates to a plastic pipe cutting device that prevents melt deformation. Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0020] Figure 6 This utility model relates to a plastic pipe cutting device that prevents melt deformation. Figure 3 Schematic diagram of the cross-sectional structure at the CC section;

[0021] Figure 7 This utility model relates to a plastic pipe cutting device that prevents melt deformation. Figure 6 Enlarged structural diagram at point D;

[0022] Figure 8 This utility model relates to a plastic pipe cutting device that prevents melt deformation. Figure 6 Enlarged structural diagram at point E in the middle.

[0023] In the diagram: 1. Processing table; 2. Processing box; 3. Cutting mechanism; 301. Wiping cylinder; 302. Flange; 303. Auxiliary roller; 304. Cylinder; 305. Positioning frame; 306. Rotating shaft; 307. Ring blade; 308. First motor; 309. First sprocket; 310. Second sprocket; 311. Chain; 312. Temporary storage box; 313. Nozzle; 314. Connecting hole; 315. Water inlet pipe; 316. Drain pipe; 317. Groove; 318. Threaded pipe; 319. Filter cylinder; 320. Filter tank; 321. Filter layer; 322. Drain outlet; 323. Connecting pipe; 4. Raw material; 5. Support plate; 6. Conveying roller; 7. Second motor; 8. Gear. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1 to 8As shown in the figure, this utility model embodiment proposes a plastic pipe cutting device to prevent melt deformation, including a processing table 1, a processing box 2 installed at one end of the upper surface of the processing table 1, a cutting mechanism 3 installed inside the processing box 2, a raw material 4 movably installed inside the processing box 2, and the raw material 4 located inside the cutting mechanism 3, support plates 5 are respectively installed at the front and rear ends of the upper surface of the processing table 1 away from the processing box 2, and conveying rollers 6 are movably installed at the upper and lower ends of the support plates 5 on the side close to each other, the raw material 4 is movably located between the conveying rollers 6 and in contact with the conveying rollers 6, gears 8 are respectively installed at the rear ends of the conveying rollers 6, and the gears 8 are meshed with each other, and a second motor 7 is installed at the lower end of the front surface of the support plate 5 at the front end. The second motor 7 is connected to the front end of the conveying roller 6. The cutting mechanism 3 includes a positioning frame 305, which is movably installed in the middle of the upper part of the processing box 2. A rotating shaft 306 is movably installed through the lower part of the positioning frame 305. A ring blade 307 is installed on the outer side of the shaft of the rotating shaft 306. The ring blade 307 and the raw material 4 are parallel vertically. Temporary storage boxes 312 are installed on the upper part of the front and rear sides of the processing box 2. Several nozzles 313 are installed through the side of the temporary storage box 312 near the raw material 4. A connecting hole 314 is provided at the lower part of the processing box 2. The upper part of the connecting hole 314 is connected through the temporary storage box 312. A water inlet pipe 315 is installed through the lower part of the connecting hole 314.

[0026] like Figures 4 to 8As shown, in another embodiment of this utility model, auxiliary rollers 303 are movably installed at the upper and lower ends of both sides inside the processing box 2. The raw material 4 is movably located between the auxiliary rollers 303, and the raw material 4 and the auxiliary rollers 303 are in close contact. A cylinder 304 is installed on the upper surface of the processing box 2. The output end of the cylinder 304 movably passes through the upper end of the processing box 2 and is connected to the positioning frame 305. Wiping cylinders 301 are movably installed through the lower ends of both sides inside the processing box 2. Flanges 302 are installed on the opposite sides of the wiping cylinders 301. The flanges 302 are connected to the processing box 2 by bolts. The tube of the raw material 4 is movably installed through the flanges 302 and the inside of the wiping cylinders 301. A second sprocket 310 is installed at one end of the shaft 306. A first motor 308 is installed at the upper end of the positioning frame 305. The output end of 08 is equipped with a first sprocket 309. A chain 311 is sleeved between the first sprocket 309 and the second sprocket 310. A groove 317 is provided inside the processing table 1 and near the processing box 2. A drain pipe 316 is installed through the groove 317 and the lower end of the processing box 2. A threaded pipe 318 is installed through the lower end of the groove 317. A filter cylinder 319 is installed inside the threaded pipe 318 by threads. The upper end of the filter cylinder 319 is in contact with the upper surface of the groove 317. A filter groove 320 is provided inside the upper end of the filter cylinder 319. The drain pipe 316 is located inside the filter groove 320. Several filter layers 321 are installed inside the filter groove 320. Several drain ports 322 are provided through the lower end of the filter groove 320. A connecting pipe 323 is installed through the lower end of the groove 317.

[0027] The user starts the second motor 7, which then drives the front conveyor roller 6 to rotate. Since the gears 8 at the rear end of the conveyor roller 6 mesh with each other, all the conveyor rollers 6 rotate synchronously. Then, since the raw material 4 is placed between the conveyor rollers 6 and in contact with them, the raw material 4 is conveyed into the processing box 2 under the drive of the conveyor rollers 6, ensuring that the raw material 4 can enter the processing box 2 stably and at a uniform speed for cutting, thus ensuring the accuracy of the cutting length.

[0028] Then, when the raw material 4 is delivered to the appropriate position, the first motor 308 is started. The first sprocket 309 at the output end of the first motor 308 rotates, driving the second sprocket 310 through the chain 311. This causes the rotating shaft 306 and the annular blade 307 installed on the outside of its shaft to rotate at high speed. At the same time, the cylinder 304 is started. The output end of the cylinder 304 pushes the positioning frame 305 downward, so that the annular blade 307 gradually approaches the raw material 4 to achieve the cutting process. Meanwhile, the water inlet pipe 315 delivers the cooling medium to the temporary storage box 312. Then, the nozzle 313 on the side of the temporary storage box 312 near the raw material 4 sprays the cooling medium onto the plastic tube being cut. Thus, when the annular blade 307 generates heat by rotating at high speed to cut the plastic tube, the cooling medium takes away the heat in time, effectively preventing the local temperature of the plastic tube from becoming too high, avoiding melting deformation, ensuring the dimensional accuracy and appearance quality of the plastic tube after cutting, and improving the product qualification rate.

[0029] The auxiliary roller 303 ensures that the raw material 4 will not shake during cutting, ensuring a smooth cutting process, improving the flatness of the cut, and avoiding uneven cutting edges.

[0030] Before entering the processing box 2 and after cutting, the tube body of raw material 4 will pass through the wiping tube 301. The wiping tube 301 can wipe the surface of raw material 4 to remove surface impurities and moisture, prevent impurities from affecting the cutting effect, avoid impurities from entering the cutting mechanism 3 and affecting the normal operation of the equipment, extend the service life of the equipment, and also clean the surface of raw material 4 after cutting to prevent water droplets from falling into the outside with raw material 4.

[0031] The wiping cylinder 301 is made of polyurethane-based composite material. Polyurethane-based composite material usually has good flexibility and adsorption properties. Its flexibility allows the wiping cylinder 301 to better fit the surface of the plastic tube. Even if the surface of the plastic tube has a certain curvature or unevenness, it can still make close contact to ensure that there are no dead corners in the wiping. Its adsorption properties can effectively adsorb impurities and moisture on the surface of the plastic tube, such as dust, oil stains and residual cooling media, to prevent these impurities from entering the cutting mechanism 3 and affecting the cutting effect and normal operation of the equipment. At the same time, it can also ensure the surface cleanliness of the plastic tube after cutting. Furthermore, due to the excellent wear resistance and chemical resistance of this material, the wear resistance can ensure that the wiping cylinder 301 is not easily worn during the frequent wiping of the plastic tube, thus extending its service life and reducing equipment maintenance costs. Its chemical resistance can resist the erosion of chemicals such as cooling media, and will not deform or corrode due to long-term contact with these substances, ensuring that the wiping cylinder 301 can play a stable role in complex working environments.

[0032] After use, the cooling medium flows into the groove 317 through the drain pipe 316 at the lower end of the processing box 2, and then into the filter cylinder 319 inside the groove 317. The cooling medium is then filtered through several filter layers 321 inside the filter cylinder 319. The filtered cooling medium is discharged through the drain port 322 and the connecting pipe 323 or recycled.

[0033] The working principle of this type of plastic pipe cutting equipment that prevents melt deformation:

[0034] In use, the user first starts the second motor 7, which then drives the front conveyor roller 6 to rotate. Because the gears 8 at the rear of the conveyor roller 6 mesh with each other, all the conveyor rollers 6 rotate synchronously. Since the raw material 4 is placed between and in contact with the conveyor rollers 6, it is conveyed into the processing box 2 under the drive of the conveyor rollers 6. When the raw material 4 is conveyed to the appropriate position, the first motor 308 is started. The first sprocket 309 at the output end of the first motor 308 rotates, driving the second sprocket 310 through the chain 311. This causes the rotating shaft 306 and the annular blade 307 mounted on its outer side to rotate at high speed. Simultaneously, the cylinder 304 is started, and its output end pushes the positioning frame 305 downwards, causing... The annular blade 307 gradually approaches the raw material 4 to perform cutting. At the same time, the water inlet pipe 315 delivers the cooling medium to the temporary storage box 312. Then, the nozzle 313 on the side of the temporary storage box 312 closest to the raw material 4 sprays the cooling medium onto the plastic tube being cut. Thus, when the annular blade 307 generates heat by rotating at high speed to cut the plastic tube, the cooling medium carries away the heat in time. The used cooling medium flows into the groove 317 through the drain pipe 316 at the lower end of the processing box 2, and then into the filter cylinder 319 inside the groove 317. The cooling medium is then filtered through several filter layers 321 inside the filter cylinder 319. The filtered cooling medium is discharged through the drain port 322 and the connecting pipe 323 or recycled.

[0035] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A plastic pipe cutting apparatus against melting deformation, comprising a processing table (1), characterized in that: A processing box (2) is installed on one end of the upper surface of the processing table (1). A cutting mechanism (3) is installed inside the processing box (2). A raw material (4) is installed inside the processing box (2) and is located inside the cutting mechanism (3). Support plates (5) are installed at the front and rear ends of the upper surface of the processing table (1) away from the processing box (2). Conveying rollers (6) are installed at the upper and lower ends of the support plates (5) that are close to each other. The raw material (4) is located between the conveying rollers (6) and is in contact with the conveying rollers (6). Gears (8) are installed at the rear ends of the conveying rollers (6) and are meshed with each other. A second motor (7) is installed at the lower end of the front surface of the support plate (5) at the front end. The second motor (7) is connected to the front end of the conveying rollers (6). The cutting mechanism (3) includes a positioning frame (305), which is movably installed in the middle of the upper part of the processing box (2). A rotating shaft (306) is movably installed through the lower part of the positioning frame (305). A ring blade (307) is installed on the outer side of the shaft (306). The ring blade (307) and the raw material (4) are parallel vertically. Temporary storage boxes (312) are installed on the upper part of the front and rear sides of the processing box (2). Several nozzles (313) are installed through the side of the temporary storage box (312) near the raw material (4). A connecting hole (314) is provided at the lower part of the processing box (2). The upper part of the connecting hole (314) is connected through the temporary storage box (312). A water inlet pipe (315) is installed through the lower part of the connecting hole (314).

2. A plastic pipe cutting apparatus as claimed in claim 1, wherein: Auxiliary rollers (303) are movably installed on the upper and lower ends of the two sides inside the processing box (2). The raw material (4) is movably located between the auxiliary rollers (303), and the raw material (4) and the auxiliary rollers (303) are in contact. A cylinder (304) is installed on the upper surface of the processing box (2). The output end of the cylinder (304) movably passes through the upper end of the processing box (2) and is connected to the positioning frame (305).

3. A plastic pipe cutting apparatus to prevent melting and deformation according to claim 1, wherein: Wiping cylinders (301) are movably installed through the lower ends of both sides of the processing box (2). Flanges (302) are installed on the opposite sides of the wiping cylinders (301). The flanges (302) are connected to the processing box (2) by bolts. The tube of the raw material (4) is movably installed through the flanges (302) and the wiping cylinders (301).

4. A plastic pipe cutting apparatus to prevent melting and deformation according to claim 1, wherein: A second sprocket (310) is installed at one end of the shaft (306), a first motor (308) is installed at the upper end of the positioning frame (305), a first sprocket (309) is installed at the output end of the first motor (308), and a chain (311) is sleeved between the first sprocket (309) and the second sprocket (310).

5. A plastic pipe cutting apparatus to prevent melting and deformation according to claim 1, wherein: The processing table (1) has a groove (317) inside and near the processing box (2). A drain pipe (316) is installed through the groove (317) and the lower end of the processing box (2). A threaded pipe (318) is installed through the lower end of the groove (317). A filter cylinder (319) is installed inside the threaded pipe (318) by thread. The upper end of the filter cylinder (319) is in contact with the upper surface of the groove (317).

6. A plastic pipe cutting apparatus as claimed in claim 5, wherein: The filter cylinder (319) has a filter groove (320) at its upper interior. The drain pipe (316) is located inside the filter groove (320). Several filter layers (321) are installed inside the filter groove (320). Several drain outlets (322) are provided through the lower interior of the filter groove (320). A connecting pipe (323) is installed through the lower interior of the groove (317).

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