Lining cutting device for plastic-lined pipe

Abstract

The utility model relates to the technical field of lining cutting of plastic-lined pipes, and discloses a lining cutting device of a plastic-lined pipe, which comprises a bottom box. The cutting knife is located above the bottom box, and an adjusting assembly is arranged on the right side of the cutting knife; and a clamping assembly is arranged above the bottom box and comprises two supporting plates, the two supporting plates are symmetrically arranged, second connecting plates and C-shaped frames are arranged between the two supporting plates, and the two second connecting plates and the two C-shaped frames are symmetrically arranged. Through an adjusting assembly, a double-end threaded rod is used for driving two sliding plates to be close to or far away from each other, so that two supporting plates drive a C-shaped frame to be close to or far away from each other, lining plastic pipes of different lengths can be clamped and fixed, and a second motor drives the C-shaped frame and the clamped and fixed lining plastic pipes to rotate; and therefore, the cutting knife can conduct ring cutting on the lining plastic pipe, the situation that the cutting knife damages the surface of the lining plastic pipe is avoided, and the lining cutting effect of the device on the lining plastic pipe is improved.

Description

Technical Field

[0001] This utility model relates to the field of inner lining cutting technology for plastic-lined pipes, specifically to an inner lining cutting device for plastic-lined pipes. Background Technology

[0002] Plastic-lined pipes are made of ordinary carbon steel pipes as the base, lined with chemically superior thermoplastic plastics, and formed by cold drawing or rotational molding. They have both the mechanical properties of steel pipes and the corrosion resistance of plastic pipes, and are characterized by slow scaling and resistance to microbial growth. They are ideal pipelines for transporting media such as acids, alkalis, salts, and corrosive gases.

[0003] According to a Chinese patent, a cutting device for processing plastic-lined pipes discloses a support mechanism. The support mechanism includes a support plate, the surface of which is provided with a movable plate. Two double-threaded screws are rotatably connected to the surface of the movable plate. Each of the two double-threaded screws is threaded with two connecting blocks. A first clamping block is fixedly connected to the surface of one of the connecting blocks. This design utilizes the rotation of the two double-threaded screws to move the connecting blocks, which in turn moves the first and second clamping blocks inwards, thereby clamping plastic-lined pipes of different sizes and increasing the device's practicality. The output shaft of a second servo motor rotates, driving the cutting blade to rotate and cut the plastic-lined pipe. The cutting height of the cutting blade can be adjusted via an electric telescopic rod. A collection hopper and a collection box can be used to collect the pipes. The device is designed to collect waste from cutting. It includes a support mechanism comprising a support plate with a movable plate on its surface. Two double-threaded screws are rotatably connected to the surface of the movable plate. Each of the two double-threaded screws has two connecting blocks threaded onto its surface. A first clamping block is fixedly connected to the surface of one of the connecting blocks. The rotation of the two double-threaded screws moves the connecting blocks, causing the first and second clamping blocks to move inwards, thus clamping plastic-lined pipes of different sizes and increasing the device's practicality. The output shaft of a second servo motor rotates, driving the cutting blade to rotate and cut the plastic-lined pipe. The cutting height of the cutting blade can be adjusted via an electric telescopic rod. Waste from cutting can be collected via a collection hopper and a collection box.

[0004] The device uses an electric telescopic rod to adjust the cutting height of the cutting blade to cut the plastic-lined pipe. However, the existing device has the following problems: the plastic-lined pipe is cut from top to bottom, which cannot achieve a rotating circumferential cutting effect, and the cutting blade is prone to damaging the plastic-lined pipe during the top-down cutting process. Therefore, an inner lining cutting device for plastic-lined pipes is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an inner lining cutting device for plastic-lined pipes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an inner lining cutting device for plastic-lined pipes, comprising a base box;

[0007] And a cutting blade located above the bottom box, with an adjustment component on the right side of the cutting blade;

[0008] A clamping assembly is provided above the bottom box.

[0009] Preferably, the clamping assembly includes two support plates symmetrically arranged. A second connecting plate and a C-shaped frame are arranged between the two support plates. Two second connecting plates and two C-shaped frames are symmetrically arranged. The right side of the second connecting plate is fixedly connected to the left side of the C-shaped frame. A second motor is arranged on the right side of the right support plate. The left end of the output rod of the second motor extends through the right side of the right support plate to the left side of the right support plate. The left end of the output rod of the second motor is fixedly connected to the right side of the right second connecting plate. A rotating shaft is fixedly connected to the left side of the left second connecting plate. The left end of the rotating shaft is rotatably connected to the right side of the left support plate through a bearing seat. An upper clamping plate and a lower clamping plate are arranged inside the C-shaped frame. The bottom surface of the lower clamping plate is fixedly connected to the bottom surface of the inner side of the C-shaped frame. A second electric push rod is fixedly connected to the top surface of the C-shaped frame. The bottom end of the output rod of the second electric push rod extends through the top surface of the C-shaped frame to the inner side of the C-shaped frame. The bottom end of the output rod of the second electric push rod is fixedly connected to the top surface of the upper clamping plate.

[0010] Preferably, the adjustment assembly includes a first connecting plate, the right side of the cutting blade is fixedly mounted on the left side of the first connecting plate, a slider is fixedly connected to the bottom surface of the first connecting plate, a mounting base is provided on the top surface of the base box, the bottom end face of the slider slides through the top surface of the mounting base and extends into the interior of the mounting base, a sliding rod is provided on the front side of the slider, the rear end face of the sliding rod slides through the front side of the slider and extends into the rear side of the slider, the front and rear end faces of the sliding rod are respectively fixedly connected to the front and rear sides of the interior of the mounting base, and the stability of the slider during movement is improved by the sliding rod.

[0011] Preferably, the upper clamping plate and the lower clamping plate are arranged symmetrically above and below each other.

[0012] Preferably, rubber pads are fixedly connected to the side of the upper clamping plate and the inner side of the lower clamping plate to prevent the upper and lower clamping plates from damaging the inner lining surface of the plastic-lined tube.

[0013] Preferably, the bottom box is provided with a double-threaded rod and two sliding plates. The left end face of the double-threaded rod is threaded through the right side face of the two sliding plates and extends to the left side face of the two sliding plates. The left and right ends of the double-threaded rod are rotatably connected to the inner wall of the bottom box through bearing seats. The side face of the sliding plate is slidably connected to the inner side face of the bottom box. The two sliding plates are symmetrically arranged, and the double-threaded rod is used to drive the two sliding plates to move closer or further apart.

[0014] Preferably, a first motor is fixedly connected to the front of the base box, and the rear end face of the output rod of the first motor extends through the front of the base box into the interior of the base box. A rotating rod is fixedly connected to the rear end face of the output rod of the first motor. Both the surface of the rotating rod and the surface of the double-threaded rod are fixedly fitted with bevel gears, and the two bevel gears mesh at their inclined surfaces. The first motor provides power to the rotating rod.

[0015] Preferably, a fixing plate is fixedly connected to the left side of the skateboard, and the left end of the fixing plate slides through the right side of the bottom box to the left side of the fixing plate. The top surface of the fixing plate is fixedly connected to the bottom surface of the support plate, and the fixing plate drives the support plate to move.

[0016] Preferably, a first electric push rod is provided on the right side of the mounting base. The bottom surface of the first electric push rod is fixedly connected to the top surface of the base box, and the left end face of the output rod of the first electric push rod is fixedly connected to the right side of the mounting base. The first electric push rod drives the mounting base to move left and right, thereby moving the cutting blade left and right. The cutting blade is located in front of and above the lower clamping plate.

[0017] Preferably, a positioning pin is provided above the slider, and a positioning groove adapted to the positioning pin is provided through the top surface of the mounting base. The bottom end face of the positioning pin slides through the top surface of the slider and the top surface of the mounting base and extends into the interior of the positioning pin. The positioning pin and the positioning groove lock the slider.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The inner lining cutting device for the plastic-lined pipe, through the adjustment component, uses a double-headed threaded rod to drive two sliding plates to move closer or further apart, so that two support plates drive the C-shaped frame to move closer or further apart, thereby clamping and fixing plastic-lined pipes of different lengths. The second motor drives the C-shaped frame and the clamped plastic-lined pipe to rotate, so that the cutting blade can perform circumferential cutting on the plastic-lined pipe, avoiding damage to the surface of the plastic-lined pipe by the cutting blade and improving the cutting effect of the device on the inner lining of the plastic-lined pipe;

[0020] 2. The inner lining cutting device of the plastic-lined pipe clamps both ends of the plastic-lined pipe through a C-shaped frame, an upper clamping plate, a lower clamping plate, and a second electric push rod to prevent the inner lining of the plastic-lined pipe from shaking during the cutting process and causing cutting deviation.

[0021] 3. The inner lining cutting device for the plastic-lined pipe, through the adjustment component, moves the left and right positions of the cutting blade with the first electric push rod, thereby cutting the inner lining of the plastic-lined pipe according to the required length. At the same time, the front and rear positions of the cutting blade are adjusted by the slide rod, slider and the first connecting plate, thereby cutting according to the inner lining thickness of the plastic-lined pipe, improving the convenience of the device in cutting the inner lining of the plastic-lined pipe. Attached Figure Description

[0022] Figure 1 This is a perspective view of the overall main view of this utility model;

[0023] Figure 2 This is a front sectional perspective view of the double-ended threaded rod of this utility model;

[0024] Figure 3 This is a bottom perspective view of the double-ended threaded rod of this utility model;

[0025] Figure 4 This is a perspective sectional view of the C-shaped frame of this utility model from the right side.

[0026] Figure 5 This is a front perspective view of the slider of this utility model.

[0027] In the diagram: base box 1, cutting blade 2, adjusting assembly 30, first electric push rod 301, mounting base 302, first connecting plate 303, slider 304, sliding rod 305, positioning pin 306, clamping assembly 31, first motor 311, rotating rod 312, double-threaded rod 313, bevel gear 314, sliding plate 315, fixing plate 316, support plate 317, second connecting plate 318, second motor 319, rotating shaft 3110, C-frame 3111, second electric push rod 3112, upper clamping plate 3113, lower clamping plate 3114, rubber plate 3115. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1: Please refer to Figure 1 - Figure 5 This utility model provides a technical solution: an inner lining cutting device for plastic-lined pipes, including a base box 1;

[0030] And the cutting blade 2 located above the bottom box 1, with an adjustment component 30 on the right side of the cutting blade 2;

[0031] A clamping assembly 31 is provided on the top of the bottom box 1.

[0032] The clamping assembly 31 includes two support plates 317, which are symmetrically arranged. A second connecting plate 318 and a C-shaped frame 3111 are arranged between the two support plates 317. There are two of each of the second connecting plate 318 and the C-shaped frame 3111. The right side of the second connecting plate 318 is fixedly connected to the left side of the C-shaped frame 3111. A second motor 319 is arranged on the right side of the right support plate 317. The left end of the output rod of the second motor 319 extends through the right side of the right support plate 317 to the left side of the right support plate 317. The left end of the output rod of the second motor 319 is fixedly connected to the right side of the right second connecting plate 318. A rotating shaft 3110 is fixedly connected to the left side of the left second connecting plate 318. The left end of the rotating shaft 3110 is rotatably connected to the right side of the left support plate 317 through a bearing seat. An upper clamping plate 3113 and a lower clamping plate 3114 are arranged inside the C-shaped frame 3111. The bottom surface of the clamping plate 3114 is fixedly connected to the inner bottom surface of the C-shaped frame 3111. The top surface of the C-shaped frame 3111 is fixedly connected to the second electric push rod 3112. The bottom end of the output rod of the second electric push rod 3112 extends through the top surface of the C-shaped frame 3111 to the inner side of the C-shaped frame 3111. The bottom end of the output rod of the second electric push rod 3112 is fixedly connected to the top surface of the upper clamping plate 3113. By adjusting the component 30, the double-headed threaded rod 313 drives the two sliding plates 315 to move closer or further away from each other, so that the two support plates 317 drive the C-shaped frame 3111 to move closer or further away from each other. This allows for clamping and fixing of plastic-lined tubes of different lengths. The second motor 319 drives the C-shaped frame 3111 and the clamped plastic-lined tubes to rotate, thereby allowing the cutting blade 2 to perform a circumferential cut on the plastic-lined tubes. This avoids damage to the surface of the plastic-lined tubes caused by the cutting blade 2 and improves the cutting effect of the device on the inner lining of the plastic-lined tubes.

[0033] The upper clamping plate 3113 and the lower clamping plate 3114 are symmetrically arranged. The C-shaped frame 3111, the upper clamping plate 3113, the lower clamping plate 3114 and the second electric push rod 3122 are used to clamp the two ends of the plastic-lined tube to prevent the inner lining of the plastic-lined tube from shaking during the cutting process and causing the cutting deviation.

[0034] Rubber pads 3115 are fixedly connected to the side of the upper clamping plate 3113 and the inner side of the lower clamping plate 3114.

[0035] The bottom box 1 is equipped with a double-threaded rod 313 and two slide plates 315. The thread on the left end face of the double-threaded rod 313 passes through the right side face of the two slide plates 315 and extends to the left side face of the two slide plates 315. The left and right ends of the double-threaded rod 313 are rotatably connected to the inner wall of the bottom box 1 through bearing seats. The side of the slide plate 315 is slidably connected to the inner side of the bottom box 1. The two slide plates 315 are symmetrically arranged.

[0036] A first motor 311 is fixedly connected to the front of the base box 1. The rear end face of the output rod of the first motor 311 extends through the front of the base box 1 and into the interior of the base box 1. A rotating rod 312 is fixedly connected to the rear end face of the output rod of the first motor 311. Bevel gears 314 are fixedly sleeved on the surface of the rotating rod 312 and the surface of the double-headed threaded rod 313. The two bevel gears 314 mesh at an angle.

[0037] A fixing plate 316 is fixedly connected to the left side of the sliding plate 315. The left end of the fixing plate 316 slides through the right side of the bottom box 1 and extends to the left side of the fixing plate 316. The top surface of the fixing plate 316 is fixedly connected to the bottom surface of the support plate 317.

[0038] Example 2: Based on Example 1, a preferred embodiment of the inner lining cutting device for plastic-lined pipes provided by this utility model is as follows: Figure 1 and Figure 5 As shown: The adjustment assembly 30 includes a first connecting plate 303. The right side of the cutting blade 2 is fixedly installed on the left side of the first connecting plate 303. A slider 304 is fixedly connected to the bottom surface of the first connecting plate 303. A mounting base 302 is provided on the top surface of the base box 1. The bottom end of the slider 304 slides through the top surface of the mounting base 302 and extends into the interior of the mounting base 302. A sliding rod 305 is provided on the front side of the slider 304. The rear end of the sliding rod 305 slides through the front side of the slider 304 and extends into the rear side of the slider 304. The front and rear end faces of the sliding rod 305 are fixedly connected to the front and rear sides of the interior of the mounting base 302, respectively. Through the adjustment assembly 30, the first electric push rod 301 moves the left and right sides of the cutting blade 2, thereby cutting the inner lining of the plastic-lined pipe according to the required length. At the same time, the front and rear positions of the cutting blade 2 are adjusted by the sliding rod 305, the slider 304 and the first connecting plate 303, thereby cutting according to the inner lining thickness of the plastic-lined pipe, improving the convenience of the device when cutting the inner lining of the plastic-lined pipe.

[0039] A first electric push rod 301 is provided on the right side of the mounting base 302. The bottom surface of the first electric push rod 301 is fixedly connected to the top surface of the base box 1, and the left end face of the output rod of the first electric push rod 301 is fixedly connected to the right side of the mounting base 302.

[0040] A positioning pin 306 is provided above the slider 304, and a positioning groove adapted to the positioning pin 306 is provided through the top surface of the mounting base 302. The bottom end of the positioning pin 306 slides through the top surface of the slider 304 and the top surface of the mounting base 302 and extends into the interior of the positioning pin.

[0041] In use, the plastic-lined tube is placed between two C-shaped frames 3111. The first motor 311 is turned on, causing the rotating rod 312 to rotate and drive the bevel gear 314 to rotate. Through the meshing transmission of the two bevel gears 314, the double-threaded rod 313 rotates. The double-threaded rod 313 drives the two sliding plates 315 to move closer to each other, thereby causing the fixing plate 316 to move the support plate 317, which in turn causes the two C-shaped frames 3111 to move closer to each other. The plastic-lined tube is placed in the lower clamping plate 3114. The second electric push rod 3112 is turned on, and the upper clamping plate 3113 moves downward to clamp and fix the plastic-lined tube in the lower clamping plate 3114. The cutting blade 2 cuts the clamped and fixed plastic-lined tube. The second motor 319 is turned on, causing the second connecting plate 318 to rotate and drive the C-shaped frame 3111 and the clamped and fixed plastic-lined tube to rotate, thereby causing the cutting blade 2 to perform a circumferential cut on the inner lining of the plastic-lined tube.

[0042] When it is necessary to cut the inner lining of the plastic-lined pipe to different lengths, the first electric push rod 301 is activated, which causes the mounting base 302 to move and drive the cutting blade 2 to move, thereby cutting the inner lining of the plastic-lined pipe according to the required length.

[0043] Remove the positioning pin 306 from the positioning groove, push the first connecting plate 303 so that the slider 304 slides on the slide rod 305, thereby driving the cutting blade 2 to move to the rear and insert the positioning pin 306 into the corresponding positioning groove, and then cut according to the inner lining thickness of the plastic-lined tube.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for the inner lining of a plastic-lined pipe, comprising a base box (1); And a cutting blade (2) located above the bottom box (1), characterized in that: An adjustment component (30) is provided on the right side of the cutting blade (2); A clamping assembly (31) is provided above the bottom box (1).

2. The inner lining cutting device for a plastic-lined pipe according to claim 1, characterized in that: The clamping assembly (31) includes two support plates (317) symmetrically arranged. A second connecting plate (318) and a C-shaped frame (3111) are arranged between the two support plates (317). There are two symmetrically arranged second connecting plates (318) and C-shaped frames (3111). The right side of the second connecting plate (318) is fixedly connected to the left side of the C-shaped frame (3111). A second motor (319) is arranged on the right side of the right support plate (317). The left end of the output rod of the second motor (319) extends through the right side of the right support plate (317) to the left side of the right support plate (317). The left end of the output rod of the second motor (319) is fixedly connected to the right side of the right second connecting plate (318). A rotating shaft (3110) is fixedly connected to the left side of the second connecting plate (318) on the left side. The left end face of the rotating shaft (3110) is rotatably connected to the right side of the left support plate (317) through a bearing seat. An upper clamping plate (3113) and a lower clamping plate (3114) are provided inside the C-shaped frame (3111). The bottom surface of the lower clamping plate (3114) is fixedly connected to the bottom surface of the inner side of the C-shaped frame (3111). A second electric push rod (3112) is fixedly connected to the top surface of the C-shaped frame (3111). The bottom end face of the output rod of the second electric push rod (3112) extends through the top surface of the C-shaped frame (3111) to the inner side of the C-shaped frame (3111). The bottom end face of the output rod of the second electric push rod (3112) is fixedly connected to the top surface of the upper clamping plate (3113).

3. The inner lining cutting device for a plastic-lined pipe according to claim 1, characterized in that: The adjustment assembly (30) includes a first connecting plate (303). The right side of the cutting blade (2) is fixedly installed on the left side of the first connecting plate (303). A slider (304) is fixedly connected to the bottom surface of the first connecting plate (303). A mounting base (302) is provided on the top surface of the base box (1). The bottom end of the slider (304) slides through the top surface of the mounting base (302) and extends into the interior of the mounting base (302). A sliding rod (305) is provided on the front side of the slider (304). The rear end of the sliding rod (305) slides through the front side of the slider (304) and extends into the rear side of the slider (304). The front and rear end faces of the sliding rod (305) are fixedly connected to the front and rear sides of the interior of the mounting base (302), respectively.

4. The inner lining cutting device for a plastic-lined pipe according to claim 2, characterized in that: The upper clamping plate (3113) and the lower clamping plate (3114) are arranged symmetrically on the top and bottom.

5. The inner lining cutting device for a plastic-lined pipe according to claim 2, characterized in that: Rubber pads (3115) are fixedly connected to the side of the upper clamping plate (3113) and the inner side of the lower clamping plate (3114).

6. The inner lining cutting device for a plastic-lined pipe according to claim 2, characterized in that: The bottom box (1) is provided with a double-threaded rod (313) and two sliding plates (315). The left end face of the double-threaded rod (313) is threaded through the right side of the two sliding plates (315) and extends to the left side of the two sliding plates (315). The left and right ends of the double-threaded rod (313) are rotatably connected to the inner wall of the bottom box (1) through bearing seats respectively. The side of the sliding plate (315) is slidably connected to the inner side of the bottom box (1). The two sliding plates (315) are symmetrically arranged.

7. The inner lining cutting device for a plastic-lined pipe according to claim 6, characterized in that: The bottom box (1) is fixedly connected to the front of the first motor (311). The rear end face of the output rod of the first motor (311) extends through the front of the bottom box (1) into the interior of the bottom box (1). The rear end face of the output rod of the first motor (311) is fixedly connected to a rotating rod (312). Both the surface of the rotating rod (312) and the surface of the double-headed threaded rod (313) are fixedly fitted with bevel gears (314), and the two bevel gears (314) mesh on their inclined surfaces.

8. The inner lining cutting device for a plastic-lined pipe according to claim 6, characterized in that: A fixing plate (316) is fixedly connected to the left side of the sliding plate (315). The left end of the fixing plate (316) slides through the right side of the bottom box (1) and extends to the left side of the fixing plate (316). The top surface of the fixing plate (316) is fixedly connected to the bottom surface of the support plate (317).

9. The inner lining cutting device for a plastic-lined pipe according to claim 3, characterized in that: A first electric push rod (301) is provided on the right side of the mounting base (302). The bottom surface of the first electric push rod (301) is fixedly connected to the top surface of the base box (1), and the left end face of the output rod of the first electric push rod (301) is fixedly connected to the right side face of the mounting base (302).

10. The inner lining cutting device for a plastic-lined pipe according to claim 3, characterized in that: A positioning pin (306) is provided above the slider (304), and a positioning groove adapted to the positioning pin (306) is provided through the top surface of the mounting base (302). The bottom end of the positioning pin (306) slides through the top surface of the slider (304) and the top surface of the mounting base (302) and extends into the interior of the positioning pin.

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