Pneumatic clamping type pipe cutting device

Abstract

The invention discloses a pneumatic clamping type pipe cutting device, and relates to the technical field of pipe fitting cutting, the pneumatic clamping type pipe cutting device comprises a pipe cutting machine, a first air cylinder and a second air cylinder which are arranged on the pipe cutting machine, the pipe cutting machine is further provided with a fixed support, and the second air cylinder is provided with a movable support; the air inlet channel is communicated with the air outlet channel; an air inlet pipe is arranged on one side of the elastic airbag, and an air outlet pipe is arranged on the other side; fixed frames are fixedly mounted at the two ends of the connecting frame, and propelling wheels are rotationally mounted in the fixed frames; the friction wheel rotates to drive the propelling wheel to rotate, and fan blades are arranged at the position of a through hole in the center of the friction wheel. The friction wheels rotate to drive the propelling wheels to rotate, the two propelling wheels are attached to the pipe fitting so as to push the pipe fitting to advance to conduct cutting of the next round, no complex control module exists, cutting and feeding are still conducted by controlling the air cylinder, the structure is simple, and operation is easy.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting technology, specifically to a pneumatic clamping pipe cutting device. Background Technology

[0002] Currently, the air brake lines and coolant lines in the automotive market are all made of resin hoses, which are mainly used to transport air and liquid to ensure the normal operation of the vehicle. During the production and installation process, the resin hoses need to be cut according to design requirements, such as length.

[0003] The production of hoses typically involves producing a single long strip, which is then cut into several end strips for further processing. Therefore, the cutting process usually requires a series of steps: cutting, feeding, and re-cutting. Some existing hose cutting devices require manual or mechanical feeding during the cutting process, but both methods require independent operation, adding another step to the worker's hose cutting workflow. Fully automated hose cutting control involves a PLC control module, requiring professional personnel for programming, design, and continuous improvement and maintenance, further increasing labor costs. Summary of the Invention

[0004] The purpose of this invention is to provide a pneumatic clamping pipe cutting device to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic clamping pipe cutting device, comprising a pipe cutting machine and a first cylinder and a second cylinder thereon, wherein the pipe cutting machine is further provided with a fixed bracket and the second cylinder is provided with a movable bracket, and further comprising: a cutting tool, wherein an air inlet channel and an air outlet channel are provided thereon, and the air inlet channel and the air outlet channel are connected; an elastic airbag, wherein an air inlet pipe is provided on one side and an air outlet pipe is provided on the other side; a connecting frame, wherein fixed frames are fixedly installed at both ends, and a propulsion wheel is rotatably installed inside the fixed frames; a friction wheel, wherein the rotation of the friction wheel drives the propulsion wheel to rotate, and a fan blade is provided at the central through hole of the friction wheel; and a limiting mechanism, which is used to open the air outlet pipe when the cutting tool is withdrawn.

[0006] As a preferred option, a mounting plate is also included;

[0007] The air intake channel is L-shaped.

[0008] Preferably, the limiting mechanism includes a vertical plate fixedly installed on the pipe cutting machine, a sliding plate horizontally slidably installed on the vertical plate, a blocking plate fixedly installed at one end of the sliding plate, and a spring fixedly installed between the sliding plate and the vertical plate;

[0009] A protrusion is fixedly installed on the cutting tool.

[0010] Preferably, a connecting plate is fixedly installed on the pipe cutting machine, the connecting frame is fixedly installed on the connecting plate, and a friction ring is fixedly installed on the side wall of the push wheel, with the friction ring and the friction wheel in contact.

[0011] Preferably, a collar is fixedly installed on the friction wheel, and the collar is rotatably mounted on the fixed frame.

[0012] Preferably, both the fixed bracket and the movable bracket are equipped with clamping rings, and the clamping rings are provided with inner grooves and observation holes.

[0013] Preferably, the connecting frame is concave.

[0014] Preferably, a fixing plate is fixedly installed on the fixing bracket, and the elastic airbag is fixedly installed on the fixing plate.

[0015] Preferably, the propulsion wheel is provided with a rubber pad.

[0016] Preferably, the blocking plate is in the shape of an "I".

[0017] In the above technical solution, the present invention provides a pneumatic clamping pipe cutting device, which has the following beneficial effects: The present invention connects the other end of the pipe to a blower, thereby continuously supplying air into the pipe. The free end of the pipe is cut between a fixed bracket and a movable bracket. When cutting is required, a first cylinder pushes the cutter to cut the pipe. As the cutting ends, the air inlet channel on the cutter aligns with the pipe. At this time, due to the blower blowing air, the gas enters the outlet channel through the air inlet channel on the cutter, and then enters two elastic airbags through two air inlet pipes through the upper and lower openings of the outlet channel. The air inlet pipes are equipped with… The one-way valve allows air to flow only into the elastic air bladder. As the air inlet channel and the pipe are connected, the elastic air bladder will be continuously inflated until it is full. At this point, the cutter retracts, and the air outlet pipe opens through the limiting mechanism. The airflow inside the elastic air bladder enters the fixed frame through the air outlet pipe and passes through the center of the friction wheel. The fan blades at the center of the friction wheel drive the friction wheel to rotate. The rotation of the friction wheel drives the propulsion wheel to rotate. The two propulsion wheels and the pipe are in contact, thus pushing the pipe forward for the next round of cutting. In this application, there is no complex control module. Cutting and feeding are still performed by controlling the cylinder. The structure is simple and easy to operate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram provided for an embodiment of the present invention;

[0020] Figure 2 Provided for embodiments of the present invention Figure 1 A schematic diagram of the rear part of the structure;

[0021] Figure 3 This is a partial structural schematic diagram of the first cylinder provided in an embodiment of the present invention;

[0022] Figure 4 This is a partial structural schematic diagram of the cutting tool provided in an embodiment of the present invention;

[0023] Figure 5 This is a partial structural diagram of the clamping ring provided in an embodiment of the present invention;

[0024] Figure 6 This is a partial structural schematic diagram of the friction wheel provided in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Pipe cutting machine; 2. First cylinder; 3. Second cylinder; 4. Fixed bracket; 5. Moving bracket; 6. Cutting tool; 61. Air inlet channel; 62. Air outlet channel; 63. Protrusion; 64. Mounting plate; 71. Fixed plate; 72. Elastic airbag; 73. Air inlet pipe; 74. Air outlet pipe; 75. Vertical plate; 76. Slide plate; 77. Blocking plate; 81. Connecting plate; 82. Connecting frame; 83. Fixed frame; 84. Friction wheel; 841. Collar; 85. Push wheel; 86. Friction ring; 87. Rotating rod; 91. Clamping ring; 92. Inner groove; 10. Pipe fitting. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Please see Figure 1-6 The pneumatic clamping pipe cutting device includes a pipe cutting machine 1 and a first cylinder 2 and a second cylinder 3 thereon. The pipe cutting machine 1 is also equipped with a fixed bracket 4, and the second cylinder 3 is equipped with a movable bracket 5. It also includes:

[0029] The cutting tool 6 is provided with an air inlet channel 61 and an air outlet channel 62, and the air inlet channel 61 and the air outlet channel 62 are connected.

[0030] The elastic airbag 72 has an air inlet pipe 73 on one side and an air outlet pipe 74 on the other side.

[0031] The connecting frame 82 has fixed frames 83 at both ends, and a push wheel 85 is rotatably installed inside the fixed frame 83;

[0032] The friction wheel 84 rotates, which drives the propulsion wheel 85 to rotate, and the central through hole of the friction wheel 84 is provided with fan blades;

[0033] A limiting mechanism is used to open the vent pipe 74 when the cutter 6 retracts;

[0034] This also includes a fan connected to the other end of the pipe 10, allowing continuous airflow into the pipe 10. The free end of the pipe 10 is connected to a fixed bracket 4 and a movable bracket 5 for cutting. When cutting is required, the first cylinder 2 pushes the cutter 6 to cut the pipe 10. After cutting, the air inlet channel 61 on the cutter 6 aligns with the pipe 10. At this time, due to the fan blowing air, the gas enters the air outlet channel 62 through the air inlet channel 61 on the cutter 6, and then enters the two elastic airbags 72 through the upper and lower openings of the air outlet channel 62 via two air inlet pipes 73. The 3 is equipped with a one-way valve so that air can only be introduced into the elastic airbag 72. Therefore, after the air inlet channel 61 and the pipe 10 are connected, the elastic airbag 72 will be continuously inflated until it is full. At this time, the cutter 6 is withdrawn, and the air outlet pipe 74 is opened by the limiting mechanism. At this time, the airflow in the elastic airbag 72 will enter the fixed frame 83 through the air outlet pipe 74 and pass through the center of the friction wheel 84. The fan blade at the center of the friction wheel 84 will drive the friction wheel 84 to rotate. At this time, the rotation of the friction wheel 84 will drive the push wheel 85 to rotate. The two push wheels 85 and the pipe 10 are in contact to push the pipe 10 forward for the next round of cutting.

[0035] The fixed end of the pipe fitting 10 is wound on the take-up roller. Since the take-up roller is easier to rotate and feed, the push wheel 85 can more easily push the pipe fitting 10.

[0036] In another embodiment of the present invention, a mounting plate 64 is also included;

[0037] The air intake passage 61 is L-shaped;

[0038] The intake passage 61 is horizontally L-shaped. When designing the intake passage 61 and the exhaust passage 62, refer to... Figure 4 First, drill a horizontal hole on the front of the cutter 6. Then, drill a horizontal hole on the side of the cutter 6 until it connects with the horizontal hole drilled on the front. This forms an L-shaped air intake channel 61. The air outlet channel 62 can be drilled directly from top to bottom through a hole. Then, install the side of the cutter 6 on the mounting plate 64. At this time, the outlet of the air intake channel 61 is blocked. At the same time, the cutter 6 can be installed on the first cylinder 2 through the mounting plate 64.

[0039] In another embodiment of the present invention: the limiting mechanism includes a vertical plate 75 fixedly installed on the pipe cutting machine 1, a sliding plate 76 horizontally slidably installed on the vertical plate 75, a blocking plate 77 fixedly installed at one end of the sliding plate 76, and a spring fixedly installed between the sliding plate 76 and the vertical plate 75.

[0040] A protrusion 63 is fixedly mounted on the cutting tool 6;

[0041] When the elastic airbag 72 is inflated, as the cutter 6 retracts, the protrusion 63 on the cutter 6 will contact the sliding plate 76, where reference... Figure 4 The protrusion 63 is actually located on the right side of the slide plate 76. Therefore, when the cutter 6 retracts to the left, the protrusion 63 will drive the slide plate 76 to move to the left. At this time, the slide plate 76 will drive the blocking plate 77 to move to the left and move it out of the air outlet pipe 74, so that the inside of the air outlet pipe 74 is unobstructed. However, the blocking plate 77 will not completely move away from the surface of the air outlet pipe 74, thereby preventing gas from overflowing.

[0042] In another embodiment of the present invention: a connecting plate 81 is fixedly installed on the pipe cutting machine 1, a connecting frame 82 is fixedly installed on the connecting plate 81, and a friction ring 86 is fixedly installed on the side wall of the push wheel 85, and the friction ring 86 and the friction wheel 84 are in contact;

[0043] When the friction wheel 84 rotates, it will drive the friction ring 86 to rotate, which in turn drives the propulsion wheel 85 to rotate and push the pipe fitting 10 forward.

[0044] In a further embodiment, both the air inlet pipe 73 and the air outlet pipe 74 are configured as a combination of a flexible hose and a rigid pipe, wherein the flexible hose is connected to the elastic airbag 72, the rigid pipe is used to be installed on other components, and the plug 77 is inserted into the rigid pipe of the air outlet pipe 74 to facilitate plugging.

[0045] The rigid part of the air intake pipe 73 is fixedly installed on the fixed bracket 4, and the rigid part of the air outlet pipe 74 is fixedly installed on the connecting frame 82.

[0046] In another embodiment of the present invention: a collar 841 is fixedly installed on the friction wheel 84, and the collar 841 is rotatably installed on the fixed frame 83;

[0047] The inner wall of the collar 841 is fixedly installed with a rotating rod 87, and the fan blade is fixedly installed on the rotating rod 87. The gas in the elastic airbag 72 enters the collar 841 through the air outlet pipe 74 and passes through the friction wheel 84. At this time, the airflow will drive the friction wheel 84 to rotate through the collar 841 via the fan blade. As the friction wheel 84 rotates, it will drive the propulsion wheel 85 to rotate through the friction ring 86.

[0048] The friction wheel 84 is larger than the friction ring 86, so that the friction wheel 84 can drive the friction ring 86 and the propulsion wheel 85 to rotate several times when it rotates once, thus making the propulsion efficiency higher and making it easier to drive the propulsion wheel 85 to rotate.

[0049] Furthermore, the surfaces of the friction wheel 84 and the friction ring 86 can be respectively provided with tooth blocks and tooth grooves for meshing, thereby obtaining a better transmission effect;

[0050] Furthermore, a ring is fixedly installed on the pipe cutting machine 1, so that the pipe fitting 10 passes through the ring and enters between the fixed support 4 and the movable support 5, thereby positioning and limiting the pipe fitting 10 to facilitate the movement of the push wheel 85.

[0051] In another embodiment of the present invention: both the fixed bracket 4 and the movable bracket 5 are equipped with clamping rings 91, and the clamping rings 91 are provided with inner grooves 92 and observation holes are provided on the clamping rings 91;

[0052] Two clamping rings 91 can form a complete ring, facilitating the clamping of the pipe fitting 10. When the pipe fitting 10 is inserted between the two clamping rings 91, it will be clamped onto the pipe fitting 10 as the moving bracket 5 moves, thus restricting the movement of the pipe fitting 10. Then, the first cylinder 2 is activated to push the cutter 6 to cut the pipe fitting 10. At this time, the cutting accuracy is higher and the surface of the pipe fitting 10 is smoother. In some existing technologies, when clamping and cutting the pipe fitting 10, the fixed clamping method has a single function, such as clamping-cutting-feeding-re-cutting, etc. The screening of the pipe fitting 10 for damage often requires additional steps. However, in this application, at the moment of completion, before the air inlet channel 61 on the cutter 6 is connected to the pipe fitting 10, the cutter 6 is blocked. The pipe fitting 10 has an opening, and since the blower is still blowing air, the pipe fitting 10 can be checked for breakage in conjunction with the clamping rings 91. Both clamping rings 91 have inner grooves 92, which allow the clamping rings 91 to clamp the pipe fitting 10 from both sides. There is space between the inner grooves 92 and the pipe fitting 10. If the pipe fitting 10 is damaged, the airflow will enter the inner groove 92 through the damaged area and spray out through the observation hole on the clamping rings 91. Furthermore, a balloon or floating piece of paper can be installed on the observation hole, making it easier to observe when airflow is sprayed out. Therefore, in this application, by adding a blower to blow air on the pipe fitting 10 to be cut, not only can the problem of transporting the pipe fitting 10 be solved, but the quality inspection of the pipe fitting 10 itself can also be carried out.

[0053] In another embodiment of the present invention: the connecting frame 82 is concave;

[0054] The connecting frame 82 can connect two fixed frames 83 at the same time, so that the two push wheels 85 are located at the upper and lower ends of the pipe fitting 10 respectively, so as to push the pipe fitting 10 at the same time.

[0055] In another embodiment of the present invention: a fixing plate 71 is fixedly installed on the fixing bracket 4, and the elastic airbag 72 is fixedly installed on the fixing plate 71;

[0056] The elastic airbag 72 is mounted on the fixed bracket 4 via the fixed plate 71.

[0057] In another embodiment of the present invention: a rubber pad is provided on the propulsion wheel 85;

[0058] This increases the friction of the propulsion wheel 85 to facilitate the movement of its propulsion tube 10.

[0059] In another embodiment of the present invention: the blocking plate 77 is in the shape of an "I";

[0060] The upper and lower protruding ends of the blocking plate 77 can be inserted into the two air outlet pipes 74 respectively to block the passage.

[0061] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pneumatic clamping pipe cutting device, comprising a pipe cutting machine (1) and a first cylinder (2) and a second cylinder (3) thereon, wherein the pipe cutting machine (1) is further provided with a fixed bracket (4), and the second cylinder (3) is equipped with a movable bracket (5), characterized in that, Also includes: The cutting tool (6) is provided with an air inlet channel (61) and an air outlet channel (62), and the air inlet channel (61) and the air outlet channel (62) are connected. An elastic airbag (72) has an air inlet pipe (73) on one side and an air outlet pipe (74) on the other side. The connecting frame (82) has fixed frames (83) at both ends, and a push wheel (85) is rotatably installed inside the fixed frame (83). The friction wheel (84) rotates to drive the propulsion wheel (85) to rotate, and the central through hole of the friction wheel (84) is provided with fan blades; A limiting mechanism is used to open the vent pipe (74) when the cutter (6) retracts.

2. The pneumatic clamping pipe cutting device according to claim 1, characterized in that, It also includes a mounting plate (64); The air intake channel (61) is L-shaped.

3. The pneumatic clamping pipe cutting device according to claim 2, characterized in that, The limiting mechanism includes a vertical plate (75) fixedly installed on the pipe cutting machine (1), a sliding plate (76) is horizontally slidably installed on the vertical plate (75), a blocking plate (77) is fixedly installed at one end of the sliding plate (76), and a spring is fixedly installed between the sliding plate (76) and the vertical plate (75); A protrusion (63) is fixedly installed on the cutting tool (6).

4. The pneumatic clamping pipe cutting device according to claim 3, characterized in that, A connecting plate (81) is fixedly installed on the pipe cutting machine (1), and a connecting frame (82) is fixedly installed on the connecting plate (81). A friction ring (86) is fixedly installed on the side wall of the push wheel (85), and the friction ring (86) and the friction wheel (84) are in contact.

5. The pneumatic clamping pipe cutting device according to claim 1, characterized in that, A collar (841) is fixedly installed on the friction wheel (84), and the collar (841) is rotatably installed on the fixed frame (83).

6. The pneumatic clamping pipe cutting device according to claim 1, characterized in that, Both the fixed bracket (4) and the movable bracket (5) are equipped with clamping rings (91), and the clamping rings (91) are provided with inner grooves (92). An observation hole is provided on the clamping rings (91).

7. The pneumatic clamping pipe cutting device according to claim 1, characterized in that, The connecting frame (82) is concave.

8. The pneumatic clamping pipe cutting device according to claim 1, characterized in that, A fixing plate (71) is fixedly installed on the fixing bracket (4), and the elastic airbag (72) is fixedly installed on the fixing plate (71).

9. The pneumatic clamping pipe cutting device according to claim 1, characterized in that, The propulsion wheel (85) is equipped with a rubber pad.

10. The pneumatic clamping pipe cutting device according to claim 3, characterized in that, The blocking plate (77) is in the shape of an "I".

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