Pipe cutting device equipped with a dust collector

Abstract

The present invention relates to a pipe cutting device that enables easy cutting of a pipe by rotating the pipe using a roller while simultaneously cutting it using a cutting means, and in particular, to a pipe cutting device that prevents the pipe from moving in the longitudinal direction when rotating the pipe, thereby enabling cutting to be performed at an accurate position.

Description

Technology Field

[0001] The present invention relates to a pipe cutting device, and more specifically, to a pipe cutting device that enables easy cutting of a pipe by rotating the pipe using a roller while simultaneously cutting it using a cutting means.

[0002] In particular, the present invention relates to a pipe cutting device equipped with a dust collection device on one side to collect and process sludge generated during the process of cutting a pipe more cleanly. Background Technology

[0003] Pipes are a type of construction material used to transport fluids, and for piping, they are cut into various sizes.

[0004] These pipes are made of various materials including PVC (Polyvinyl Chloride) and in various thicknesses, and there are many difficulties when cutting pipes made in this way.

[0005] In particular, for pipes with a large diameter, the wall thickness is thick, so when a worker cuts the pipe by hand, it takes a long time, which has the disadvantage of reducing work efficiency. Accordingly, various devices for cutting pipes are being developed, and examples of this include Patent Documents 1 to 3.

[0006] Patent Document 1 describes a pipe cutting device for cutting a pipe transferred to a lower plate by lowering an upper plate equipped with a blade on its lower surface and a lowering means, comprising: a wheel plate located on one side of the lower plate; a first pipe transfer wheel and a second pipe transfer wheel mounted on the wheel plate so as to be rotatable by a wheel motor; first and second chain gears formed respectively on the rotation axes of the first and second pipe transfer wheels; first and second pipe guide rollers mounted on the wheel plate so as to face each other with the first and second pipe transfer wheels and the pipe between them; and a pipe transfer unit composed of a rotating chain meshed with the first chain gear and the second chain gear to transfer the pipe to the lower plate. A pipe cutting device capable of cutting a pipe from a blade to a sensor, comprising a sensor guide rail positioned in the longitudinal direction of a pipe on the other side of a lower plate, and a blade driving unit including a sensor fixed to a variable position on the sensor guide rail by a fixing means, which detects contact with the pipe and transmits to a lowering means when lowering.

[0007] Patent Document 2 describes a pipe cutter in which a handle is rotatably installed on the side of a body, a screw shaft is installed vertically so as to be rotatably installed on the body, and a motor assembly, in which a cutter blade rotates according to the drive of a motor, is screw-coupled to the screw shaft so as to convert the rotational motion of the handle into linear motion to cause the motor assembly to move up and down, and a plurality of rollers are rotatably installed on the lower part of the body to cut by lowering a rotating cutter blade while a cylindrical pipe is loaded onto the upper surface of the rollers, wherein a handle is rotatably installed on the upper part of the body, and the lower end of the screw shaft rotated by the handle is rotatably coupled to the body, and the rollers installed on the lower part of the body consist of a large-diameter roller installed at the bottom with a minimum gap between a pair and a small-diameter roller installed at the top with a maximum gap between a pair so that a small pipe is placed on top of the large-diameter roller to prevent interference with the cutter blade when cutting, and a cutting line is marked on the circumference of each large-diameter roller and small-diameter roller to align with the vertical direction of the cutter blade, and an auxiliary support is installed on the floor surface of the site and two A pipe cutter comprising a base with a fixed support plate, a mounting plate having four bearings installed on the upper side and vertically elongated slots formed on both sides of the lower side, a bolt screwed to the support plate through the slots formed in the mounting plate, and a spring elastically installed in insertion grooves formed on both sides of the lower surface of the mounting plate and both sides of the upper surface of the base to move the mounting plate upward.

[0008] Patent Document 3 describes a pipe cutting device comprising: a supply unit that moves a pipe before cutting by a set length in one direction; a preliminary cutting unit positioned on the path where the pipe is moved by the supply unit to pre-cut the outer circumference of the pipe; an auxiliary cutting unit positioned in front of the preliminary cutting unit with respect to the pipe's movement path to grip the pipe; and a push unit. The preliminary cutting unit includes a rotating shaft that is rotatably provided and has a transfer passage formed therein to provide a path where an inner pipe is moved along the longitudinal direction; a body connected to one side of the rotating shaft and having a transfer hole formed in a central area to be aligned with the transfer passage; a cutting member having a cutting blade that cuts the pipe positioned in the transfer hole; and a controlling member that controls the state of the cutting blade cutting the pipe. The controlling member is provided to be movable back and forth along the longitudinal direction of the rotating shaft, and the push unit moves the controlling member back and forth.

[0009] As such, various pipe cutting technologies have been developed, and these technologies generate chips (sawdust, hereinafter collectively referred to as "chips") during the pipe cutting process. These generated chips not only contaminate the surrounding environment but also pose a problem by adversely affecting the respiratory systems of workers.

[0010] In addition, there is a problem in that a significant amount of time is consumed in the process of collecting and processing the generated chips. Prior art literature

[0011] Republic of Korea Registered Patent No. 10-0436124 Republic of Korea Registered Patent No. 10-1873653 Republic of Korea Registered Patent No. 10-1890669 The problem to be solved

[0012] The present invention was developed to solve the problems of the prior art as described above, and aims to provide a pipe cutting device equipped with a dust collection device that not only increases the cutting efficiency of the pipe by allowing the pipe to rotate more easily when rotating the pipe, but also prevents the surrounding environment from being contaminated by the generated chips and prevents fine chip particles from having an adverse effect on the worker's respiratory system by providing a dust collection device on one side to collect and process the chips generated during the pipe cutting process more cleanly. means of solving the problem

[0013] A pipe cutting device equipped with a dust collection device according to the present invention for solving the above-mentioned purpose is a device for cutting a pipe, comprising: a base supporting the device; a cutting means installed on one side of the base for cutting a rotating pipe; and a pipe support means installed on one side of the cutting means for rotatably supporting the other end of the pipe, wherein a chip collection device is further installed on the upper part of the cutting means, the chip collection device comprises a suction cover installed to surround the cutting blade of the cutting means for collecting chips scattered by the rotation of the cutting blade, a blower connected to the suction cover by a transfer pipe for transporting chips sucked by the suction cover, a dust collection container for filtering and discharging chips transported by the blower, and a collection means for holding chips discharged from the dust collection container.

[0014] It is preferable that the above chip collection device be further equipped with a suction pipe installed at the top of the pipe being cut, with the end facing the pipe open, to collect chips scattered from the cut pipe by allowing them to flow into the opening.

[0015] Preferably, the dust collector comprises a main body in the shape of a cylinder with an open top, an outer discharge tube installed at the bottom of the main body, and an inner discharge tube installed inside the outer discharge tube to correspond to a hole formed in a partition plate installed in the middle of the main body, with a plurality of through holes formed in the side wall to discharge chips introduced into the upper part of the partition plate to a lower collection means, and to allow air discharged along with the chips to flow back through the through holes and be discharged through an exhaust pipe formed in the lid at the top of the main body.

[0016] It is preferable that a pressure means be further installed on one side of the upper part of the above-mentioned support to press down on the upper part of the supplied pipe and prevent the pipe from detaching during the cutting process.

[0017] The above cutting means is preferably one of a laser cutting machine, a rotary cutting machine, or an end mill.

[0018] It is preferable that the above cutting means be capable of moving forward, backward, and upward and downward. Effects of the invention

[0019] A pipe cutting device equipped with a dust collection device according to the present invention has the effect of enabling pipe cutting operations to be performed more safely.

[0020] In other words, the present invention has the effect of preventing workers from being injured by flying sawdust by installing a suction cover to surround the rotating blade of the cutting means and installing a suction pipe at the cutting part of the pipe so that sawdust generated during the pipe cutting process is discharged through the suction cover and the suction pipe, thereby preventing the surrounding environment from being contaminated by sawdust and reducing the time required for collecting sawdust. Brief explanation of the drawing

[0021] FIG. 1 is a perspective view of an example of a pipe cutting device equipped with a dust collector according to the present invention. FIG. 2 is a perspective view of an example of only the cutting device of a pipe cutting device equipped with a dust collector according to the present invention. FIG. 3 is a perspective view of an example of a dust collection container constituting a pipe cutting device equipped with a dust collection device according to the present invention. FIG. 4 is a perspective view of a suction cover and a suction pipe constituting a pipe cutting device equipped with a dust collector according to the present invention. FIG. 5 is a cross-sectional view of a suction cover and a suction pipe constituting a pipe cutting device equipped with a dust collector according to the present invention. FIG. 6 is a cross-sectional view of a dust collection container constituting a pipe cutting device equipped with a dust collection device according to the present invention. Specific details for implementing the invention

[0022] The present invention can be implemented with various modifications, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0023] In describing each drawing, similar reference numerals have been used for similar components. In describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions could obscure the essence of the invention.

[0024] The present invention enables more effective collection of chips generated during the process of cutting pipes, thereby reducing the time and manpower required for chip collection and preventing environmental contamination by chips.

[0025] The pipe cutting device according to the present invention is a device for cutting a pipe, and as shown in FIG. 1, comprises: a base (10) for supporting the device; a cutting means (20) for cutting a pipe installed at the other end of the base and rotatably supported by a pipe rotation chuck; and a pipe support roller (30) installed on one side of the cutting means and rotatably supporting the other end of the pipe, and further comprises a chip collection device (100).

[0026] That is, the pipe cutting device according to the present invention is developed by improving upon the registered patent No. 10-2486242, which was developed by the applicant and is already patented, and is characterized by further comprising a chip collection device (100) for collecting chips (sawdust, hereinafter collectively referred to as "chips") generated during the process of cutting a pipe.

[0027] As illustrated in FIGS. 1 to 6, the chip collection device (100) comprises a suction cover (110) installed to surround the cutting blade of the cutting means and collecting chips scattered by the rotation of the cutting blade, a blower (120) connected to the suction cover by a conveying pipe body and conveying chips sucked by the suction cover, a dust collection container (130) that filters and discharges chips conveyed by the blower, and a collection means (140) that holds chips discharged from the dust collection container.

[0028] The suction cover (110) is configured to have a rectangular tubular shape as shown in FIG. 4, and includes a cover body (111) with an open surface facing the rotating blade; and a connecting pipe part (112) that is integrally connected to a part of the upper portion of the cover body and to which a transfer pipe is connected.

[0029] The suction cover (111) configured as described above guides chips scattered into the inside of the suction cover during the pipe cutting process to the connecting pipe section as the rotating blade rotates, and the chips guided to the connecting pipe section are transported to the dust collection container (130) by the blower along the transport pipe body by the suction pressure of the blower.

[0030] In addition, a chip receiving protrusion (113) is formed in the part where the suction cover and the connecting pipe are connected, that is, in the part corresponding to the direction in which chips are ejected from the cut pipe, and the part of the chip receiving protrusion facing the pipe is open to form an inlet (113o), so that chips ejected from the pipe are guided to the connecting pipe side through this inlet (113o).

[0031] The above blower (120) is a means of blowing air toward the dust collection container and is a means of transferring chips introduced into the suction cover to the dust collection container along with the air.

[0032] The above dust collection container (130) is a means for filtering and discharging chips transported by a blower. That is, it separates and discharges only the chips from the chips and air sucked in by the blower, and the chips are collected in a collection means (140).

[0033] The above collection means (140) is a means for storing chips and can be formed in the shape of a normal container or a bag.

[0034] The above dust collection container (130) is a means for filtering out only the chips and filtering the air in a state where air and chips are mixed, and as shown in FIGS. 3 and 6, it includes a main body (131) in the shape of a container with an open top, an outer discharge tube (132) installed at the bottom of the main body, and an inner discharge tube (133) installed inside the outer discharge tube to correspond to a hole formed in a separator plate (133f) installed in the middle of the main body, having a plurality of through holes (133h) formed in the side wall to discharge chips introduced into the upper part of the separator plate to a lower collection means, and to allow air discharged together with the chips to flow back through the through holes and be discharged through an exhaust pipe (130o) formed in the lid (130c) at the top of the main body.

[0035] The above-mentioned main body (131) is a conventional main body, and the top is open so that the interior can be inspected and other components installed inside can be detached. That is, the above-mentioned main body has the top open and a lid (130c) installed so that the interior can be opened, and a hole is formed in one side wall to which a transfer pipe connected to a blower is connected.

[0036] The above-mentioned discharge outer tube (132) and discharge inner tube (133) are means for separating chips and air. A collection means (140) is installed to contact the outer surface of the discharge outer tube, so that chips discharged through the discharge inner tube fall into the interior of the collection means and are stored, and air transported together with the chips passes through a through hole (133h) formed in the side wall of the discharge inner tube, moves upward through the inside of the discharge inner tube, and is discharged through an exhaust pipe (130o) formed in the lid.

[0037] Fine particles may be mixed in the air discharged in this way, and since these fine chips can contaminate the air when discharged to the outside, a filter (134) is additionally installed at the top of the two discharge pipes.

[0038] The above filter (134) is designed to filter fine fragments generated during the pipe cutting process and is installed in a detachable manner so that it can be cleaned.

[0039] As shown in FIGS. 3 and 6, two or more discharge inner tubes (133) are installed inside the discharge outer tube (132), and a through hole (133h) is formed in the side wall.

[0040] As illustrated in FIG. 6, the chip falls down through the center of the discharge tube (133) and is stored in the collection means (140). During this process, air moves upward through the inside of the discharge tube (133) or through the through hole (133h) and is discharged through the exhaust pipe (130o) via a filter.

[0041] As described above, in order to prevent chips falling downward through the discharge tube (133) from bouncing upward, the discharge tube (133) is installed on the isolation plate (133f).

[0042] That is, the above-mentioned isolation plate (133f) is installed at the bottom of a hole formed in the side wall of the main body to divide the main body into upper and lower sections, and the above-mentioned discharge tube (133) is installed in the hole formed in the isolation plate so that chips supplied to the upper part of the isolation plate are discharged to the lower part of the isolation plate through the discharge tube (133).

[0043] In addition, the present invention is equipped with a collection pipe (150) to collect chips that are scattered upward from the pipe during the pipe cutting process.

[0044] As shown in FIGS. 4 and 5, the above collection pipe (150) is configured with an open bottom and one side wall, is installed on the upper part of the pipe, and a transfer pipe body is connected to the upper part.

[0045] That is, the above-mentioned collection pipe (150) opens a surface corresponding to the pipe and the rotating blade to form an inlet (150o), which corresponds to the inlet (113o) of the chip receiving protrusion (113) formed in the connecting pipe section, and chips scattered to the upper part of the pipe are discharged through these two inlet (150o, 113o).

[0046] In addition, the inlet (150o) formed in the above collection pipe (150) must be able to change its position according to the diameter of the pipe.

[0047] Accordingly, the above-mentioned collection tube (150) is integrally installed at one end of the horizontally moving tube section (151), and the position of the inlet (150o) can be changed by the moving tube section (151) being inserted into the support tube section (152) and then extending. Of course, the height of the inlet (150o) can also be adjusted to match the diameter of the pipe by installing the support tube section so that it can be adjusted.

[0048] As described above, the chip collection device (100) of the present invention is equipped with a collection cover (110) and a collection pipe (150), and is equipped with a branch pipe (160) so that the transfer pipe body connected to these two collection means can be connected to a single blower.

[0049] As described above, the pipe cutting device equipped with the chip collection device (100) preferably rotates the rotating blade constituting the cutting means in the direction in which the collection cover (110) and the collection pipe (150) are installed so that the chips of the pipe being cut are sucked into the inside of the collection cover (110) and the collection pipe (150).

[0050] For the pipe cutting device excluding the chip collection device described above, the technology of Registered Patent No. 10-2486242 and No. 10-2944863 developed by the applicant as described above may be used.

[0051] Of course, the chip collection device, which is the essence of the present invention, can be used in any cutting device that utilizes a cutting means equipped with a rotary blade, in addition to the technology described above, and this description does not limit the scope of the claims.

[0052] The above-mentioned base (10) is a means for supporting various devices, and can be made of angle to reduce weight and simplify the structure, but the size of the device may vary depending on the diameter of the pipe, and in the case of large devices, structural materials such as H-beams may be used as bases.

[0053] The above cutting means (20) may be an electric cutting machine commonly used when cutting pipes or reinforcing bars, or a laser cutting machine that cuts an object with a laser.

[0054] In addition, as an example of the cutting means (20), a drilling end mill for forming a hole in a pipe may be used. That is, the cutting means may be installed so as to be detachably installed and replaced with any one of the laser cutter, rotary cutter, and end mill mentioned above.

[0055] In addition, it is preferable that the cutting means (20) is installed at one end of the base and can move back and forth and up and down.

[0056] That is, the pipe needs to be cut to a specific length depending on the intended use, and for this purpose, the above-mentioned left and right transfer means (21) is provided.

[0057] The above left and right transfer means (21) may consist of a guide bar (21g) installed at one end of the base, a moving block (21b) that moves along the guide bar, a transfer screw (21s) installed through the moving block, and a rotating handle (21h) that rotates the transfer screw.

[0058] When the above-mentioned rotary handle (21h) is rotated, the feed screw (21s) rotates, and the moving block (21b), which has female threads formed to mesh with the threads of the feed screw, moves, causing the cutting means to move left and right, and the pipe can be cut to a length equal to this distance.

[0059] In addition, as described above, the cutting means (20) can be installed to move in the forward and backward directions, and in this case, a forward and backward transfer means (22) is further provided.

[0060] The above-mentioned front-rear transfer means (22) is for horizontally moving the cutting means in the front-rear direction and consists of a guide rail (22g) installed on the upper part of the moving block, a front-rear moving plate (22b) installed to be movable back-and-forth along the guide rail, and a transfer screw (12s) installed through the front-rear moving plate and moves the front-rear moving plate by rotating by the rotation of a rotating handle (12h).

[0061] The forward and backward transfer means configured as described above is intended to move the cutting means to a part adjacent to the pipe when the cutting means is far from the pipe, and it is preferable to further provide an expansion cylinder (22c) as a means to push the cutting means to the inner wall of the pipe so that cutting is performed.

[0062] By equipping the expansion cylinder in this way, the operator can roughly adjust the distance by operating the feed screw, and then automatically operate the expansion cylinder at the moment of cutting to perform the cutting.

[0063] The pipe support means (30) is a means for stably supporting a rotating pipe and is installed inside the cutting means as shown in FIGS. 1 and 2, and may be composed of two support rollers (31).

[0064] The two support rollers (31) are rotatably installed by the roller support (32) so as to support a rotating pipe in a rotatable state, or rotate one of the two rollers to rotate the pipe.

[0065] Of course, the pipe can be rotated by installing a separate rotation means, and the rotation means may use a pipe rotation chuck as described in Published Patent No. 10-2026-0011360 developed by the applicant.

[0066] The above pipe support means (30) can be installed in a height-adjustable manner, and as the height is adjusted, pipes of various diameters can be rotated and supported.

[0067] In addition, the pipe cutting device of the present invention may further be equipped with a pressure means (40) on one side of the upper portion of the pipe rotating chuck to press the upper portion of the supplied pipe and prevent the pipe from detaching during the cutting process.

[0068] The above-mentioned pressure means (40) may consist of a pressure roller (41) that rotatably supports the upper part of a pipe, a roller block (42) on which the pressure roller is rotatably installed, and a lifting means (43) that raises and lowers the roller block.

[0069] The lifting means (43) comprises a lifting rail (43r) installed on a vertical support bar, a lifting block (43b) installed to be movable up and down along the lifting rail, and a lifting screw (43s) installed through the lifting block to move the lifting block by rotating it by the rotation of a rotating handle.

[0070] The lifting means configured as described above is intended to move the tail pressure roller to a part adjacent to the pipe when the tail pressure roller is far from the pipe, and it is preferable to further provide a lifting cylinder (43c) as a means to push the tail pressure roller so that it comes into close contact with the pipe when cutting occurs.

[0071] In addition, the pipe cutting device of the present invention preferably has an auxiliary roller assembly installed on one side of the cutting means (20) to support the cut pipe.

[0072] When the diameter of the cut pipe is large, it is difficult for the worker to support and grip the cut pipe. Therefore, the above auxiliary roller assembly was additionally installed to enable support for the cut pipe.

[0073] The above auxiliary roller assembly may be composed of two rollers, and the rollers must be able to rotate without any external force acting on them and can be detachably attached to one side of the base as needed.

[0074] Of course, a driving means can also be installed in the auxiliary roller assembly to rotate the roller on one side. Explanation of the symbols

[0075] 10: Stand 20: Cutting means 21: Left and right transfer means 21g: Guide bar 21b: Moving block 21s: Feed screw 21h: Rotary handle 22: Forward and backward transfer means 22g: Guide rail 22b: Moving plate 22s: Feed screw 22h: Rotary knob 22c: Expansion cylinder 30: Pipe support means 31: Support roller 32: Roller support 40: Cardiac pressure means 41: Tail roller 42: Roller Blocks 43: Elevator / Loading Means 45s: Lifting screw 43r: Lifting rail 43b: Lifting block 43c: Lifting cylinder 100: Chip collection device 110: Suction cover 111: Cover body 112: Connecting pipe section 113: Chip catch protrusion 113o: Intrusion entrance 120: Blower 130: Dust collector 130o: Exhaust pipe 130c: Cover 131: Main body 132: Discharge exterior 133: Discharge inner pipe 133h: Through hole 133f: Isolation plate 134: Filter 140: Means of collection 150: Suction tube 150o: Intrusion point 151: Moving Section 152: Earthly Section 160: Branch

Claims

Claim 1 A device for cutting pipes comprises: a base (10) for supporting the device; a cutting means (20) installed on one side of the base for cutting a rotating pipe; and a pipe support means (30) installed on one side of the cutting means for rotatably supporting the other end of the pipe. A chip collection device (100) is further installed on the upper part of the cutting means (20). The chip collection device (100) includes a suction cover (110) installed to surround the cutting blade of the cutting means to collect chips scattered by the rotation of the cutting blade, a blower (120) connected to the suction cover by a transfer pipe to transport chips sucked by the suction cover, a dust collection container (130) for filtering and discharging chips transported by the blower, and a collection means (140) for holding chips discharged from the dust collection container. The above dust collection container (130) comprises a main body (131) in the shape of a container with an open top, an outer discharge tube (132) installed at the bottom of the main body, and an inner discharge tube (133) installed inside the outer discharge tube to correspond to a hole formed in a partition plate (133f) installed in the middle of the main body, having a plurality of through holes (133h) formed in the side wall to discharge chips introduced into the upper part of the partition plate to a lower collection means, and to allow air discharged along with the chips to flow back through the through holes and be discharged through an exhaust pipe (130o) formed in the lid (130c) at the top of the main body. A pipe cutting device characterized by Claim 2 A pipe cutting device according to claim 1, wherein the chip collection device (100) is further equipped with a suction pipe (150) installed on the upper part of the pipe being cut with an open end facing the pipe to collect chips scattered from the pipe being cut by allowing them to flow into the open part. Claim 3 delete Claim 4 A pipe cutting device according to paragraph 2, characterized in that a pressure means (40) is further installed on one side of the upper part of the base to press the upper part of the supplied pipe to prevent the pipe from coming off during the cutting process. Claim 5 A pipe cutting device according to claim 4, wherein the cutting means (20) is one of a laser cutting machine, a rotary cutting machine, or an end mill.

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