Beveling device for high-density polyethylene outer protective pipe

Abstract

The utility model relates to the field of beveling devices, in particular to a beveling device for a high-density polyethylene outer protective pipe, which comprises a cutting table, a rack, a cutting machine, a cutting groove, a sliding groove, a sliding block, a limiting frame, an end sleeve and a position adjusting mechanism, the upper end of the sliding block is fixedly connected with a limiting frame which is made of copper and abuts against the end of the high-density polyethylene outer protection pipe, and a position adjusting mechanism is arranged between the limiting frame and the cutting table. The relative position of the pipe end of the high-density polyethylene outer protective pipe and the cutter head of the cutting machine can be adjusted through the position adjusting mechanism according to needs, the beveling length is changed, compared with traditional cutting equipment which can not adjust the cutting point position of a pipeline, operation is more flexible, the situations that the pipeline needs to be cut for multiple times and pipeline materials are wasted are avoided, and the production efficiency is improved. The problems that a limiting plate used for positioning the pipe end position on existing cutting equipment cannot move, the relative position of the pipe end of the polyethylene outer protection pipe and the cutting machine cannot be adjusted, and the beveling length is not easy to control are solved.

Description

Technical Field

[0001] The utility model relates to the field of beveling devices, in particular to a beveling device for high-density polyethylene outer protective pipes. Background Art

[0002] Cable outer protective tube is a material frequently used for installing cables indoors or outdoors individually or in bundles. Its main purpose is to protect the cable structure and prevent the cable sheath from being contaminated or damaged. In order to adapt to the bending of the cable during laying, the outer protective tube itself needs a certain flexibility and space for bending and deformation. Therefore, the cable outer protective tube is mostly made of high-density polyethylene and other materials. The existing polyethylene outer protective tube is generally a standard length of 6m. When the pipeline needs to be spliced ​​and installed at a corner at the construction site, the pipeline needs to be beveled to form a 45-degree incision so that the pipeline can be tightly spliced ​​and welded.

[0003] However, when existing on-site cutting equipment is beveling the polyethylene outer protective pipe, it can only fix the pipe end by a limit plate set on the cutting table. Such limit plate is usually welded and fixed on the cutting table and cannot be moved, which makes it impossible to adjust the relative position of the pipe end of the polyethylene outer protective pipe and the cutting machine. This will result in the beveled length of the polyethylene outer protective pipe end being either relatively short, requiring multiple bevel cuts to reach the appropriate length, or the beveled length being too long, resulting in waste of polyethylene outer protective pipe material.

[0004] Therefore, in view of the fact that when the above-mentioned existing cutting equipment performs bevel cutting on the polyethylene outer protective pipe, the limit plate used to position the pipe end position cannot be moved, and the relative position of the pipe end of the polyethylene outer protective pipe and the cutting machine cannot be adjusted, and the bevel cutting length is not easy to control, a bevel cutting equipment with a movable limit plate can be designed so that the cutting length of the pipe end of the polyethylene outer protective pipe can be flexibly adjusted according to installation needs. Utility Model Content

[0005] In order to overcome the problem that the limit plate used to locate the pipe end position on the existing cutting equipment cannot be moved, the relative position between the pipe end of the polyethylene outer protective pipe and the cutting machine cannot be adjusted, and the bevel cutting length is not easy to control.

[0006] The technical scheme of the utility model is: a beveling device for a high-density polyethylene outer protective tube, comprising a cutting table, a frame, a cutting machine and a cutting groove, a slide groove, a slider, a limit frame, an end sleeve and a positioning mechanism; a frame is installed on one side of the upper end of the cutting table, a cutting machine is installed on the frame, a cutting groove below the cutting machine is provided on the cutting table, two slide grooves which are symmetrically provided on the cutting table and which are at an angle of 45 degrees to the cutting groove, a slider is slidably connected in the slide groove, a limit frame made of copper material which abuts against the end of the high-density polyethylene outer protective tube is fixedly connected to the upper end of the slider, a heating resistor wire is built in the limit frame, an end sleeve which is sleeved on the end of the high-density polyethylene outer protective tube is fixedly connected to the limit frame, and an adjusting mechanism is arranged between the limit frame and the cutting table.

[0007] Preferably, according to the length of the high-density polyethylene outer protective tube to be beveled, the limit frame is moved to a suitable position along the slide groove through the adjustment mechanism, and then one end of the high-density polyethylene outer protective tube is inserted into the end sleeve, and the heating resistor wire in the limit frame is energized to generate heat and transfer heat to the high-density polyethylene outer protective tube, so that the tube end is hot-melted and connected to the surface of the limit frame to prevent the high-density polyethylene outer protective tube from slipping out of the end sleeve, and the heating circuit is disconnected. The tube end is cooled and solidified and connected to the limit frame, and the cutting machine is started to bevel the pipeline. After cutting, the tube body is removed, and the waste material at the end is pulled out of the end sleeve. The high-density polyethylene outer protective tube has high material density, high viscosity, and good stability after cooling and solidification. When it is pulled out, there is little or no material residue on the limit frame, and it can be reused and beveled multiple times in a row.

[0008] Preferably, the positioning mechanism includes a No. 1 top plate, a No. 1 bottom plate and a latch; the No. 1 top plate is fixedly connected to the side of the limit frame facing away from the high-density polyethylene outer protective tube, the No. 1 top plate is above the cutting table and has two pin holes on its surface, the No. 1 bottom plate is fixedly connected to the lower end of the slider, and positioning holes are equidistantly provided on both sides of the slide groove, the latch is a U-shaped structure and the vertical portion is inserted into the pin hole and the corresponding positioning hole, and the No. 1 bottom plate is provided with a magnetic suction sheet that is magnetically adsorbed and fixed to the vertical portion of the latch, after the slider moves to the appropriate position along the slide groove, the pin hole is aligned with the corresponding positioning hole there, and then the vertical portion of the latch is inserted into the pin hole and the positioning hole, and the No. 1 top plate is locked with the cutting table. After locking, the bottom end of the vertical portion of the latch falls on the No. 1 bottom plate, and the latch is magnetically adsorbed by the magnetic suction sheet to prevent the latch from vibrating and falling out of the pin hole during beveling processing.

[0009] Preferably, the positioning mechanism includes a No. 2 top plate, a No. 2 bottom plate and a cylinder; the No. 2 top plate is fixedly connected to the side of the limit frame facing away from the high-density polyethylene outer protective tube, the No. 2 bottom plate is fixedly connected to the lower end of the slider, and a cylinder is fixedly installed on the cutting table on the same side as the limit frame, the piston rod of the cylinder is consistent with the axial direction of the slide groove on the same side, the piston rod of the cylinder is fixedly connected to the limit frame, the cylinder pushes and pulls the limit frame by telescopic piston rod, so that the slider moves along the slide groove until the limit frame reaches the appropriate position, the cylinder is powered off, the limit frame cannot move, and rests against the end of the high-density polyethylene outer protective tube.

[0010] Preferably, a slide is provided on the other side of the cutting groove relative to the limit frame, and a ball rolling along the surface of the cutting table is installed at the lower end of the slide. A support with an arc structure is fixedly connected to the upper end of the slide. The high-density polyethylene outer protective tube is placed on the support. The slide moves smoothly along the surface of the cutting table through the rolling of the ball, keeping the straight line formed by the slider and the slide at a 45-degree angle to the cutting groove at all times. The support is customized according to the high-density polyethylene outer protective tube to ensure that the outer wall of the high-density polyethylene outer protective tube is in close contact with the inner wall of the support.

[0011] Preferably, the upper end of the slide is fixedly connected to a vertical frame with an L-shaped structure, the horizontal part of the vertical frame is provided with a screw hole and a fastening bolt is threadedly connected to the inner thread of the screw hole, the lower end of the fastening bolt is movably connected to a pressure piece with an arc structure through a bearing, the pressure piece rests on the top wall of the high-density polyethylene outer protective tube, the pressure piece is customized according to the high-density polyethylene outer protective tube, the fastening bolt is turned until the pressure piece is close to the outer wall of the high-density polyethylene outer protective tube, and the high-density polyethylene outer protective tube is pressed and fixed in cooperation with the support piece.

[0012] Preferably, the limit frame and the slide are both fixedly connected with screw sleeves, a U-shaped connecting frame is arranged between the two screw sleeves, screw heads are fixedly connected at both ends of the connecting frame, the screw heads are threadedly connected and fixed with the corresponding screw sleeves, the connecting frame is a hollow transparent hard plastic pipe, LED lamp beads are installed in the connecting frame, the connecting frame is connected and fixed with the screw head and the screw sleeve by thread, the slide and the limit frame are connected into a whole, to ensure that the two can move synchronously, and the LED lamp beads provide lighting to the bevel processing area through the transparent connecting frame.

[0013] Preferably, an air duct is fixedly installed on the upper end of the connecting frame, and air holes facing the cutting machine are opened on the surface of the air duct. An air inlet is arranged on the outer wall of the air duct, and the air inlet is connected to the external fan by a hose. During the beveling process, the external fan runs continuously to convey air flow into the air duct and sends it out from the air hole to the beveling process area, so as to clean the surface of the high-density polyethylene outer protective tube and the surface of the cutting table by wind.

[0014] Beneficial effects of the utility model:

[0015] 1. The relative position between the end of the high-density polyethylene outer protective pipe and the cutter disc can be adjusted according to the needs through the adjustment mechanism to change the bevel cutting length. Compared with the traditional cutting equipment that cannot adjust the pipe cutting point, it is more flexible to operate and avoids the need to cut the pipe multiple times and waste of pipe materials;

[0016] 2. The copper limit frame with built-in heating resistor wire can be used to connect and fix the end of the high-density polyethylene outer protective pipe to the limit frame by hot melting while adjusting the end position of the pipeline. No additional auxiliary fixing tooling is required to prevent the high-density polyethylene outer protective pipe from being separated from the limit frame and offset during the beveling process;

[0017] 3. The hollow connecting frame with built-in LED lamp beads can provide lighting for the processing area during cutting, which is convenient for night operations;

[0018] 4. The supporting piece and pressing piece that move synchronously with the limit frame can be used to squeeze and fix the high-density polyethylene outer protective pipe body, replacing the manual labor to further stabilize the pipe and ensure the cutting quality;

[0019] 5. Through the air duct that supplies air to the cutting machine and the high-density polyethylene outer protective tube, the tube body and the cutting table can be cleaned by wind before and after cutting, which is helpful for the continuous beveling process of the high-density polyethylene outer protective tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure shows a schematic diagram of the overall assembly of the three-dimensional structure of the first embodiment of the beveling device for the high-density polyethylene outer protective tube of the utility model;

[0021] Figure 2 The three-dimensional structure diagram of the first embodiment of the beveling device adjustment mechanism of the high-density polyethylene outer protective tube of the utility model is shown;

[0022] Figure 3 The figure shows a schematic diagram of the overall assembly of the second embodiment of the beveling device for the high-density polyethylene outer protective tube of the utility model;

[0023] Figure 4 The three-dimensional structure diagram of the second embodiment of the beveling device adjustment mechanism of the high-density polyethylene outer protective tube of the utility model is shown;

[0024] Figure 5 The schematic diagram of the three-dimensional structure of the cutting table of the beveling device of the high-density polyethylene outer protective tube of the utility model is shown;

[0025] Figure 6 The figure shows the three-dimensional structure of the support and pressing pieces of the beveling device of the high-density polyethylene outer protective tube of the utility model;

[0026] Figure 7Shown is a schematic diagram of the three-dimensional structure of the bevel cutting device connecting frame and the air duct of the high-density polyethylene outer protective tube of the utility model.

[0027] Explanation of the reference numerals: 1. cutting table; 2. frame; 3. cutting machine; 4. cutting groove; 5. slide groove; 6. slider; 7. limit frame; 8. end sleeve; 10. positioning hole; 11. slide table; 12. support plate; 13. stand; 14. fastening bolt; 15. pressing plate; 16. screw sleeve; 17. connecting frame; 18. screw head; 19. air duct; 20. air hole; 901. top plate No. 1; 902. bottom plate No. 1; 903. latch; 904. top plate No. 2; 905. bottom plate No. 2; 906. cylinder. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] See also Figure 1-Figure 7 The utility model provides an embodiment: a beveling device for a high-density polyethylene outer protective tube, comprising a cutting table 1, a frame 2, a cutting machine 3 and a cutting groove 4, a slide 5, a slider 6, a limit frame 7, an end sleeve 8 and a positioning mechanism; a frame 2 is installed on one side of the upper end of the cutting table 1, and a cutting machine 3 is installed on the frame 2. The cutting table 1 is provided with a cutting groove 4 below the cutting machine 3, and the cutting table 1 is provided with two slides 5 symmetrically arranged on the left and right sides with an angle of 45 degrees to the cutting groove 4, a slider 6 is slidably connected in the slide 5, and a limit frame 7 made of copper material that abuts against the end of the high-density polyethylene outer protective tube is fixedly connected to the upper end of the slider 6, the limit frame 7 has a built-in heating resistor wire, and an end sleeve 8 sleeved on the end of the high-density polyethylene outer protective tube is fixedly connected to the limit frame 7, and a positioning mechanism is arranged between the limit frame 7 and the cutting table 1, according to the bevel cutting to be performed The length of the high-density polyethylene outer protective tube is determined, and the limiting frame 7 is moved to a suitable position along the slide groove 5 through the adjusting mechanism, and then one end of the high-density polyethylene outer protective tube is inserted into the end sleeve 8, and the heating resistor wire in the limiting frame 7 is energized to generate heat and conduct heat to the high-density polyethylene outer protective tube, so that the tube end is hot-melted and connected to the surface of the limiting frame 7 to prevent the high-density polyethylene outer protective tube from slipping out of the end sleeve 8, and the heating circuit is disconnected. The tube end is cooled and solidified and forms a connection relationship with the limiting frame 7, and the cutting machine 3 is started to bevel the pipeline. After cutting, the pipe body is removed, and the waste material at the end is pulled out from the end sleeve 8. The high-density polyethylene outer protective tube has high material density, high viscosity, and good stability after cooling and solidification. When it is pulled out, there is little or no material residue on the limiting frame 7, and it can be reused and beveled for multiple times in a row.

[0030] Example 1: Please refer to Figure 1-Figure 2 , Figure 5In this embodiment, the positioning mechanism includes a top plate 901, a bottom plate 902 and a latch 903; the top plate 901 is fixedly connected to the side of the limit frame 7 facing away from the high-density polyethylene outer protective tube, the top plate 901 is above the cutting table 1 and has two pin holes on the surface, the bottom plate 902 is fixedly connected to the lower end of the slider 6, and positioning holes 10 are equidistantly opened on both sides of the slide 5. The latch 903 is a U-shaped structure and the vertical part is inserted into the pin hole and the corresponding positioning hole 10. The bottom plate 901 is fixedly connected to the bottom of the cutting table 1 and has two pin holes on the surface. 02 is provided with a magnetic attraction sheet which is magnetically adsorbed and fixed to the vertical part of the latch pin 903. After the slider 6 moves to a suitable position along the slide groove 5, the pin hole is aligned with the corresponding positioning hole 10 there. Then the vertical part of the latch pin 903 is inserted into the pin hole and the positioning hole 10 to lock the No. 1 top plate 901 and the cutting table 1. After locking, the bottom end of the vertical part of the latch pin 903 falls on the No. 1 bottom plate 902, and the latch pin 903 is magnetically adsorbed by the magnetic attraction sheet to prevent the latch pin 903 from vibrating and falling out of the pin hole during the bevel cutting process.

[0031] Example 2: Please refer to Figure 3-Figure 4 In this embodiment, the positioning mechanism includes a No. 2 top plate 904, a No. 2 bottom plate 905 and a cylinder 906; the No. 2 top plate 904 is fixedly connected to the side of the limit frame 7 facing away from the high-density polyethylene outer protective tube, the No. 2 bottom plate 905 is fixedly connected to the lower end of the slider 6, and a cylinder 906 is fixedly installed on the cutting table 1 on the same side as the limit frame 7. The piston rod of the cylinder 906 is consistent with the axial direction of the slide groove 5 on the same side, and the piston rod of the cylinder 906 is fixedly connected to the limit frame 7. The cylinder 906 pushes and pulls the limit frame 7 through the telescopic piston rod, so that the slider 6 moves along the slide groove 5 until the limit frame 7 reaches the appropriate position. The cylinder 906 is powered off, the limit frame 7 cannot move, and it rests on the end of the high-density polyethylene outer protective tube. Compared with the first embodiment, the control and adjustment method of the cylinder 906 has a larger adjustment range, higher precision, and greater flexibility.

[0032] See also Figure 1 , Figure 3 , Figure 6A slide 11 is provided on the other side of the cutting groove 4 relative to the limit frame 7. A ball rolling along the surface of the cutting table 1 is installed at the lower end of the slide 11. A support piece 12 with an arc structure is fixedly connected to the upper end of the slide 11. The high-density polyethylene outer protective tube is placed on the support piece 12. The slide 11 moves smoothly along the surface of the cutting table 1 by rolling the ball, keeping the straight line formed by the slider 6 and the slide 11 always at a 45-degree angle with the cutting groove 4. The support piece 12 is customized according to the high-density polyethylene outer protective tube to ensure that the outer wall of the high-density polyethylene outer protective tube is close to the inner wall of the support piece 12. The upper end of the slide 11 is fixedly connected to a stand 13 with an L-shaped structure. A screw hole is provided on the horizontal part of the stand 13 and a fastening bolt 14 is connected to the inner thread of the screw hole. The lower end of the fastening bolt 14 is movably connected to an arc-shaped pressing plate 15 through a bearing. The pressing plate 15 is against the top wall of the high-density polyethylene outer protective tube. The pressing plate 15 is customized according to the high-density polyethylene outer protective tube. The fastening bolt 14 is screwed until the pressing plate 15 is close to the outer wall of the high-density polyethylene outer protective tube, and the high-density polyethylene outer protective tube is pressed and fixed in cooperation with the supporting plate 12. When the method of hot-melt connection of the high-density polyethylene outer protective tube by the limiting frame 7 is not adopted, the above structure can replace manual labor to assist in fixing the body of the high-density polyethylene outer protective tube.

[0033] See also Figure 1 , Figure 3 , Figure 7 The limit frame 7 and the slide 11 are fixedly connected with a screw sleeve 16, and a U-shaped connecting frame 17 is arranged between the two screw sleeves 16. The two ends of the connecting frame 17 are fixedly connected with screw heads 18, and the screw heads 18 are threadedly connected and fixed with the corresponding screw sleeves 16. The connecting frame 17 is a hollow transparent hard plastic pipe. The connecting frame 17 is installed with LED lamp beads. The connecting frame 17 is connected and fixed with the screw head 18 and the screw sleeve 16 by thread, and the slide 11 and the limit frame 7 are connected as a whole to ensure that the two can move synchronously. The D lamp beads provide lighting to the beveling processing area through the transparent connecting frame 17. An air duct 19 is fixedly installed on the upper end of the connecting frame 17. The surface of the air duct 19 is provided with air holes 20 set opposite to the cutting machine 3. An air inlet is set on the outer wall of the air duct 19, and the air inlet is connected to the external fan through a hose. During the beveling processing, the external fan continues to run, conveying air flow into the air duct 19, and sending it out from the air hole 20 to the beveling processing area, so as to clean the surface of the high-density polyethylene outer protective tube and the surface of the cutting table 1 by wind.

[0034] Through the above steps, the relative position of the end of the high-density polyethylene outer protective tube and the cutter disc of the cutting machine 3 can be adjusted as needed through the positioning mechanism to change the bevel length. Compared with the traditional cutting equipment that cannot adjust the pipe cutting point, the operation is more flexible, avoiding the need to cut the pipe multiple times and wasting pipe materials, and solving the problem that the limit plate used to locate the pipe end position on the existing cutting equipment cannot be moved, the relative position of the pipe end of the polyethylene outer protective tube and the cutting machine 3 cannot be adjusted, and the bevel length is not easy to control.

Claims

1. A beveling device for a high-density polyethylene outer protective tube, comprising a cutting table (1), a frame (2), a cutting machine (3) and a cutting groove (4); characterized in that: The invention also comprises a slide groove (5), a slider (6), a limit frame (7), an end sleeve (8) and a positioning mechanism; a frame (2) is installed on one side of the upper end of the cutting table (1), a cutting machine (3) is installed on the frame (2), a cutting groove (4) is provided on the cutting table (1) and is located below the cutting machine (3), two slide grooves (5) are symmetrically provided on the cutting table (1) and are at an angle of 45 degrees to the cutting groove (4), a slider (6) is slidably connected in the slide groove (5), a limit frame (7) made of copper material abutting against the end of a high-density polyethylene outer protective tube is fixedly connected to the upper end of the slider (6), a heating resistor wire is built in the limit frame (7), an end sleeve (8) sleeved on the end of the high-density polyethylene outer protective tube is fixedly connected to the limit frame (7), and a positioning mechanism is arranged between the limit frame (7) and the cutting table (1).

2. The beveling device for high-density polyethylene outer protective tube according to claim 1, characterized in that: The positioning mechanism comprises a No. 1 top plate (901), a No. 1 bottom plate (902) and a latch (903); the No. 1 top plate (901) is fixedly connected to a side of the limiting frame (7) facing away from the high-density polyethylene outer protective tube; the No. 1 top plate (901) is located above the cutting table (1) and has two pin holes on its surface; the No. 1 bottom plate (902) is fixedly connected to the lower end of the slider (6); positioning holes (10) are equidistantly provided on both sides of the slide groove (5); the latch (903) is a U-shaped structure and has a vertical portion inserted into the pin hole and the corresponding positioning hole (10); and a magnetic suction sheet is provided on the No. 1 bottom plate (902) and is fixed to the vertical portion of the latch (903) by magnetic attraction.

3. The beveling device for high-density polyethylene outer protective tube according to claim 1, characterized in that: The positioning mechanism comprises a No. 2 top plate (904), a No. 2 bottom plate (905) and a cylinder (906); the No. 2 top plate (904) is fixedly connected to a side of the limiting frame (7) facing away from the high-density polyethylene outer protective tube, the No. 2 bottom plate (905) is fixedly connected to the lower end of the slide block (6), and a cylinder (906) is fixedly installed on the cutting table (1) on the same side as the limiting frame (7), a piston rod of the cylinder (906) is in the same direction as an axis of the slide groove (5) on the same side, and the piston rod of the cylinder (906) is fixedly connected to the limiting frame (7).

4. The beveling device for high-density polyethylene outer protective tube according to claim 1, characterized in that: A slide table (11) is arranged on the other side of the cutting groove (4) relative to the limiting frame (7), a ball rolling along the surface of the cutting table (1) is installed at the lower end of the slide table (11), a support plate (12) with an arc structure is fixedly connected to the upper end of the slide table (11), and a high-density polyethylene outer protective tube is placed on the support plate (12).

5. The beveling device for high-density polyethylene outer protective tube according to claim 4, characterized in that: The upper end of the slide (11) is fixedly connected to a vertical frame (13) of an L-shaped structure, a screw hole is provided on the horizontal portion of the vertical frame (13), and a fastening bolt (14) is threadedly connected to the inner thread of the screw hole, and the lower end of the fastening bolt (14) is movably connected to a pressing piece (15) of an arc structure through a bearing, and the pressing piece (15) is pressed against the top wall of the high-density polyethylene outer protective tube.

6. The beveling device for high-density polyethylene outer protective tube according to claim 5, characterized in that: The limit frame (7) and the slide (11) are both fixedly connected with screw sleeves (16), a U-shaped connecting frame (17) is arranged between the two screw sleeves (16), screw heads (18) are fixedly connected to both ends of the connecting frame (17), and the screw heads (18) are fixedly connected to the corresponding screw sleeves (16) by threads. The connecting frame (17) is a hollow transparent hard plastic pipe, and LED lamp beads are installed in the connecting frame (17).

7. The beveling device for high-density polyethylene outer protective tube according to claim 6, characterized in that: An air duct (19) is fixedly mounted on the upper end of the connecting frame (17), and an air hole (20) facing the cutting machine (3) is opened on the surface of the air duct (19). An air inlet is arranged on the outer wall of the air duct (19), and the air inlet is connected to the external fan via a hose.

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