Quantitative pipe cutting device

Abstract

The utility model relates to a quantitative pipe cutting device which comprises a machine frame, a control rod arranged on the machine frame, a knife rest installed on the machine frame in a rotating mode and a roller connected to the machine frame in a rotating mode, a cleaning assembly is further arranged in the machine frame, and the cleaning assembly comprises a driving piece and a cleaning piece detachably connected to the moving end of the driving piece. The driving part is used for driving the cleaning part to move in the vertical direction, the cleaning part comprises an extension rod, a cleaning knife arranged on the extension rod and a scraping piece arranged on the cleaning knife, the inclination angle of the knife face of the cleaning knife is the same as that of the cutting section of the pipe, and the scraping piece and the cutting section of the pipe are oppositely arranged. The device is used for cleaning chippings on the pipe cutting section and scraping the pipe cutting fracture. The quantitative pipe cutting device not only can clean metal scraps on the section of a pipe when the pipe is cut, but also can scrape metal wires connected with the end face or the end opening of the pipe.

Description

Technical Field

[0001] The utility model relates to the field of pipe cutting, in particular to a quantitative pipe cutting device. Background Art

[0002] Quantitative pipe cutting devices are divided into manual pipe cutting machines, semi-automatic pipe cutting machines and fully automatic pipe cutting machines. Among them, semi-automatic pipe cutting machines and fully automatic pipe cutting machines have higher pipe cutting efficiency and larger market. However, manual pipe cutting machines still have a large market due to their price advantages, portability and low noise during cutting. Manual pipe cutting machines are composed of feed handles, cutting knives, limit wheels and straightening mechanisms. When cutting pipes, first fix the pipe, place the limit wheel against the pipe cutting position, turn the feed handle, and move the cutting knife toward the pipe until it abuts against the pipe, so that the pipe is clamped between the limit wheel and the cutting knife, and the manual pipe cutting machine is rotated several times along the periphery of the pipe to cut the pipe.

[0003] The existing manual cutting machine can complete the quantitative cutting of pipes. However, the tool will produce fine metal debris when cutting the pipe. These debris cannot be cleaned up in the first time and always exist between the tool and the end face of the pipe, affecting the cutting of the tool. If the debris is large, it may even jam the tool. Moreover, since the manual pipe cutting machine is simpler in structure and has a single function than CNC pipe cutting and laser pipe cutting, after the tool cuts the pipe, metal wires or metal strips may be connected to the cross section and fracture of the pipe. The treatment of these residual metal wires or metal strips is generally done by manual scraping, which is inconvenient. Therefore, a quantitative pipe cutting device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a quantitative pipe cutting device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A quantitative pipe cutting device comprises a frame, a control rod arranged on the frame, a knife holder rotatably mounted on the frame, and a roller rotatably connected to the frame, wherein a cleaning assembly is also arranged in the frame;

[0007] The cleaning assembly includes a driving member and a cleaning member detachably connected to the moving end of the driving member, the driving member is used to drive the cleaning member to move in a vertical direction, the cleaning member includes an extension rod, a cleaning knife arranged on the extension rod, and a scraper arranged on the cleaning knife, the inclination angle of the blade surface of the cleaning knife is the same as the inclination angle of the cut section of the pipe, the scraper is arranged opposite to the cut section of the pipe, and is used to clean debris from the cut section of the pipe and scrape the cut section of the pipe.

[0008] Furthermore, the driving member includes a mounting plate, a knob, a screw connected to the knob, and a mounting block threadedly connected to the screw, the screw is mounted on the mounting plate, the mounting plate is arranged in the frame, the knob is used to drive the screw to rotate, the screw is used to drive the mounting block to move along the length direction of the screw, and the screw is arranged vertically.

[0009] Furthermore, a connecting shaft is provided on the knob, and one end of the connecting shaft away from the knob is detachably connected to the screw rod, the connecting shaft passes through the lower end of the frame, and the knob is located outside the frame.

[0010] Furthermore, the cleaning assembly also includes a connecting piece, which includes a connecting rod, a spring arranged on the connecting rod, and a connecting seat arranged on the spring, and the connecting piece is used to connect the driving piece and the cleaning piece.

[0011] Furthermore, the connecting rod is arranged on the mounting block, the extending rod is arranged on the connecting seat, and the extending rod moves with the movement of the mounting block.

[0012] Furthermore, the scrapers are arranged on both blade surfaces of the cleaning knife, and the scrapers are arranged obliquely on the blade surface of the cleaning knife.

[0013] Furthermore, there are several rollers, the pipe is placed between two adjacent rollers, and the cleaning knife is located between the two adjacent rollers and directly below the pipe.

[0014] Compared with the prior art, the utility model has the beneficial effect that the cleaning component can be used to clean the metal debris on the pipe section when cutting the pipe and to scrape the metal wire connected to the pipe end face or the port. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the quantitative pipe cutting device.

[0016] Figure 2 It is a schematic diagram of the structure of the cleaning component of the quantitative pipe cutting device.

[0017] Figure 3 It is a schematic diagram of the structure of the cleaning part of the quantitative pipe cutting device.

[0018] Figure 4 A side view of the cleaning knife and scraper of the quantitative pipe cutting device.

[0019] Figure 5 It is a partial cross-sectional view of the quantitative pipe cutting device.

[0020] In the figure: 1, frame; 2, control lever; 3, knife holder; 4, cutting knife; 5, roller; 6, cleaning assembly; 61, mounting plate; 62, knob; 63, screw rod; 64, mounting block; 65, connecting rod; 66, spring; 67, connecting seat; 68, cleaning piece; 681, extension rod; 682, cleaning knife; 683, scraper. DETAILED DESCRIPTION

[0021] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0022] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0023] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific embodiments below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0024] Example 1, please refer to Figure 1 to Figure 5 The structure shown in the embodiment of the utility model is a quantitative pipe cutting device, including a frame 1, a control rod 2 arranged on the frame 1, a knife holder 3 rotatably mounted on the frame 1 and a roller 5 rotatably connected to the frame 1. A cleaning component 6 is also arranged in the frame 1. The vertical section of the frame 1 is similar to a C shape. The control rod 2 includes a rotating handle and a screw. A screw hole matching the screw is opened on the frame 1. The screw is threadedly connected in the screw hole. By rotating the rotating handle, the screw can be moved up and down in the screw. A cutting knife 4 is arranged on the knife holder 3. When the screw contacts the knife holder 3 and continues to move downward, it will push the knife holder 3 to rotate and change the position of the cutting knife 4. When cutting the pipe, the roller 5 is placed against the pipe, and then the cutting knife 4 is moved down until it abuts against the pipe. The control rod 2 is rotated along the periphery of the pipe. After multiple rotations, the cutting knife 4 will cut the pipe.

[0025] It should be noted that, in the present embodiment, the cutting knife 4 uses a V-shaped blade. The blades on both sides of this type of knife have a certain inclination angle, are sharper, and have higher cutting efficiency. When using this type of knife to cut pipes, the cutting end surface of the pipe has a corresponding inclination angle, and the inclination angles of the two are the same. There are two rollers 5, and the pipe is placed between the two rollers 5, and there is a certain distance between the two rollers 5.

[0026] The cleaning assembly 6 includes a driving member and a cleaning member 68 detachably connected to the moving end of the driving member. The driving member is used to drive the cleaning member 68 to move in the vertical direction. The cleaning member 68 includes an extension rod 681, a cleaning knife 682 arranged on the extension rod 681, and a scraper 683 arranged on the cleaning knife 682. The inclination angle of the blade surface of the cleaning knife 682 is the same as the inclination angle of the cut section of the pipe. The scraper 683 is arranged opposite to the cut section of the pipe, and is used to clean the debris of the cut section of the pipe and scrape the cut section of the pipe.

[0027] Furthermore, the driving member includes a mounting plate 61, a knob 62, a screw rod 63 connected to the knob 62, and a mounting block 64 threadedly connected to the screw rod 63. The screw rod 63 is mounted on the mounting plate 61, and the mounting plate 61 is arranged in the frame 1. The knob 62 is used to drive the screw rod 63 to rotate, and the screw rod 63 is used to drive the mounting block 64 to move along the length direction of the screw rod 63. The screw rod 63 is vertically arranged.

[0028] Furthermore, a connecting shaft is provided on the knob 62 , and one end of the connecting shaft away from the knob 62 is detachably connected to the screw rod 63 . The connecting shaft passes through the lower end of the frame 1 , and the knob 62 is located outside the frame 1 .

[0029] In this embodiment, the mounting plate 61 is screwed to the inside of the frame 1, and the mounting plate 61 is located below the drum 5. A through hole is also provided on the frame 1, and the connecting shaft passes through the lower end of the frame 1 through the through hole. A bearing is also provided in the through hole, and the connecting shaft is connected to the bearing key.

[0030] Furthermore, the cleaning assembly 6 also includes a connecting piece, which includes a connecting rod 65, a spring 66 arranged on the connecting rod 65, and a connecting seat 67 arranged on the spring 66. The connecting piece is used to connect the driving piece and the cleaning piece 68.

[0031] Furthermore, the connecting rod 65 is disposed on the mounting block 64 , and the extending rod 681 is disposed on the connecting seat 67 , and the extending rod 681 moves along with the movement of the mounting block 64 .

[0032] In this embodiment, the connecting rod 65 is fixedly mounted on the mounting block 64. The two can be formed in one piece or assembled by screw connection. There are five springs 66, which are respectively arranged at the four corners and the middle part of the upper end surface of the connecting rod 65, so as to ensure that the spring 66 is evenly stressed and the connecting seat 67 will not tilt after being stressed.

[0033] Furthermore, scrapers 683 are provided on both sides of the blade surface of the cleaning knife 682 , and the scrapers 683 are obliquely arranged on the blade surface of the cleaning knife 682 .

[0034] In this embodiment, reference Figure 3 and Figure 4The scraper 683 is arranged along the inclined surface of the cleaning knife 682, and the two are integrated. The length of the scraper 683 is longer than the length of the cut section of the pipe. The scraper 683 includes a flat scraper and an inclined scraper. The flat scraper has the same inclination angle as the cut section. The inclined scraper is arranged on one side of the flat scraper, and the other side of the inclined scraper is connected to the blade of the cleaning knife 682. At the beginning of cutting, the cutting groove of the pipe is very narrow, and only the blade of the cleaning knife 682 can contact it. As the cutting depth increases, the cutting groove of the pipe gradually becomes deeper and larger, and the inclined scraper goes deeper as the blade goes deeper until the cutting groove is large enough for the flat scraper to contact the cut section, and the debris and residual metal strips on the cut section are scraped off by the inclined scraper and the flat scraper.

[0035] Furthermore, there are several rollers 5 , the pipe is placed between two adjacent rollers 5 , and the cleaning knife 682 is located between the two adjacent rollers 5 and directly below the pipe.

[0036] When cutting the pipe, first clamp the pipe between the cutting knife 4 and the roller 5, then turn the knob 62 to move the mounting block 64 in the vertical direction, thereby driving the cleaning piece to move until the cleaning knife 682 abuts against the pipe. At this time, the spring 66 will be deformed. When cutting the pipe, the cutting knife 4 cuts, and the debris generated during the cutting process and the metal strips remaining on the cut end face will be gradually cleaned by the scraper 683 that gradually penetrates into the cutting groove. The reason why the scraper 683 can gradually rise is that the deformed spring 66 can push the scraper 683 upward through the elastic force.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A quantitative pipe cutting device, characterized in that: It includes a frame, a control rod arranged on the frame, a knife holder rotatably mounted on the frame, and a roller rotatably connected to the frame, and a cleaning assembly is also arranged in the frame; The cleaning assembly includes a driving member and a cleaning member detachably connected to the moving end of the driving member, the driving member is used to drive the cleaning member to move in a vertical direction, the cleaning member includes an extension rod, a cleaning knife arranged on the extension rod, and a scraper arranged on the cleaning knife, the inclination angle of the blade surface of the cleaning knife is the same as the inclination angle of the cut section of the pipe, the scraper is arranged opposite to the cut section of the pipe, and is used to clean debris from the cut section of the pipe and scrape the cut section of the pipe.

2. A quantitative pipe cutting device according to claim 1, characterized in that: The driving member includes a mounting plate, a knob, a screw connected to the knob, and a mounting block threadedly connected to the screw. The screw is mounted on the mounting plate, and the mounting plate is arranged in the frame. The knob is used to drive the screw to rotate, and the screw is used to drive the mounting block to move along the length direction of the screw. The screw is arranged vertically.

3. A quantitative pipe cutting device according to claim 2, characterized in that: The knob is provided with a connecting shaft, one end of the connecting shaft away from the knob is detachably connected to the screw rod, the connecting shaft passes through the lower end of the frame, and the knob is located outside the frame.

4. A quantitative pipe cutting device according to claim 3, characterized in that: The cleaning component also includes a connecting piece, which includes a connecting rod, a spring arranged on the connecting rod and a connecting seat arranged on the spring. The connecting piece is used to connect the driving piece and the cleaning piece.

5. A quantitative pipe cutting device according to claim 4, characterized in that: The connecting rod is arranged on the mounting block, the extending rod is arranged on the connecting seat, and the extending rod moves along with the movement of the mounting block.

6. A quantitative pipe cutting device according to claim 5, characterized in that: The scrapers are arranged on both blade surfaces of the cleaning knife, and the scrapers are arranged obliquely on the blade surface of the cleaning knife.

7. A quantitative pipe cutting device according to claim 6, characterized in that: The number of the rollers is several, the pipe is placed between two adjacent rollers, and the cleaning knife is located between the two adjacent rollers and directly below the pipe.

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