Pipe cutting and trimming apparatus

Abstract

A pipe cutting and trimming device belongs to the technical field of heat shrink tube processing equipment. The positioning mechanism in the pipe cutting and trimming device includes a block with a through hole inside. The feeding mechanism is equipped to deliver the pipe into the through hole. The hole wall of the through hole is equipped to limit the pipe in the circumferential direction. The block is also provided with a first groove extending in the axial direction of the through hole and a second groove extending in the cross direction of the axial direction. The slot of the first groove is located at one end of the through hole, and the slot of the second groove is located at the peripheral wall of the block. The first groove and the second groove have a spacing in the axial direction. The cutting mechanism is equipped to drive the first blade to cut the pipe in the axial direction into the first groove to form two oppositely arranged notches on the peripheral wall of one end of the pipe. The trimming mechanism is equipped to drive the second blade to cut the pipe in the cross direction of the axial direction into the second groove to obtain a pipe product of a specified length, thereby improving the processing precision and production efficiency.

Description

Technical Field

[0001] This application relates to the field of heat shrink tubing processing equipment, and more specifically, to a tubing trimming and cutting device. Background Technology

[0002] Currently, there is a growing number of minimally invasive interventional products on the market. The manufacturing process of these products often involves covering and protecting various outer tubes with heat shrink tubing of a certain length before welding. To facilitate connection with the outer tube, an opening is usually cut at one end of the heat shrink tubing, splitting it in two radially.

[0003] Currently, the processing of heat shrink tubing still relies on separate fixtures or equipment for cutting and trimming. Cutting requires a dedicated fixture / equipment, while trimming necessitates switching to a separate set of equipment or manual assistance. This results in time-consuming steps involving equipment switching, material transfer, and repositioning, hindering continuous production and leading to low capacity. Furthermore, the precision control of the trimming process suffers from significant deficiencies: firstly, the positioning reference of existing single-function equipment largely depends on manual calibration, lacking an automated alignment mechanism; secondly, in some scenarios, manual assistance is required to fix the heat shrink tubing, and during operation, slight hand tremors and material clamping deviations can easily cause the trimming position to deviate from the preset symmetrical centerline of the heat shrink tubing. This deviation not only directly causes the scrapping of semi-finished products (the industry scrap rate is generally as high as 5%-10%), increasing raw material waste costs; if the deviation is small and goes undetected, it can also lead to uneven adhesion between the heat shrink tubing and the interface during subsequent assembly, affecting core performance such as sealing and insulation, indirectly causing quality risks in the final product. Utility Model Content

[0004] In view of the above-mentioned shortcomings, this application provides a pipe cutting and trimming device to improve the problems of low efficiency and low precision in cutting and trimming heat shrink tubing and other pipes in related technologies.

[0005] This application is implemented as follows: This application provides an example of a pipe beveling and cutting device, including a frame, and a feeding mechanism, a positioning mechanism, a beveling mechanism, and a cutting mechanism disposed on the frame. The positioning mechanism includes a block with a through hole inside. The feeding mechanism is configured to feed the pipe into the through hole, and the wall of the through hole is configured to circumferentially limit the pipe. The block also has a first groove extending axially along the through hole and a second groove extending in a direction intersecting the axial direction. The opening of the first groove is located at one end of the through hole, and the opening of the second groove is located on the peripheral wall of the block. The first groove and the second groove are spaced apart in the axial direction. The beveling mechanism is configured to drive a first blade to extend axially into the first groove to cut the pipe, thereby forming two opposing notches on one end of the pipe's peripheral wall. The cutting mechanism is configured to drive a second blade to extend in a direction intersecting the axial direction into the second groove to cut the pipe.

[0006] In the above implementation process, when using the pipe beveling and cutting equipment provided in this application embodiment to bevele and cut heat shrink tubing and other tubing, the tubing to be cut can be fed to the feeding mechanism. The feeding mechanism transports the tubing into the through hole of the block, limiting the position of the tubing and fixing its relative position with the first and second grooves. Then, the beveling mechanism drives the first blade to gradually extend into the first groove, cutting the tubing in the first groove along its axial direction, forming two opposing notches on one end of the tubing. Then, the cutting mechanism drives the second blade to cut the tubing along the intersecting axial directions, obtaining a finished tubing of a set length with notches. The above equipment uses a positioning mechanism to simultaneously realize the cutting positioning of the cutting mechanism and the beveling positioning of the beveling mechanism, eliminating the need for separate positioning and calibration during beveling and cutting. This enables continuous production and, compared to manual assisted positioning, improves processing accuracy, thereby increasing production efficiency and capacity.

[0007] In one alternative embodiment, the first groove extends axially, is centrally symmetrical about the axis of the through hole, and the width of the first groove is less than the diameter of the through hole and the length of the first groove.

[0008] And / or, the second groove extends through the through hole.

[0009] In the above implementation process, the first groove and the second groove extend along the axial direction of the through hole and the direction intersecting the axial direction, respectively. This facilitates the cutting mechanism to extend axially into the first groove to cut the pipe and form a notch, and facilitates the cutting mechanism to extend axially into the second groove to cut the pipe. Furthermore, since the first groove is centrally symmetrical about the axis of the through hole, and the width of the first groove is less than the diameter of the through hole and the length of the first groove, the first blade can tend to cut a portion of the pipe wall axially from the center of the pipe to form a notch, which improves processing accuracy compared to manual positioning.

[0010] In one alternative embodiment, the width of the first groove is 0.1 to 0.3 mm greater than the thickness of the first blade.

[0011] And / or, the diameter of the through hole is 0.1~0.3 mm larger than the outer diameter of the pipe.

[0012] In the above implementation process, the width of the first groove is 0.1~0.3mm larger than the thickness of the first blade. This facilitates the insertion of the first blade into the first groove to bevele the tube, while also further improving the cutting accuracy of the first blade. The diameter of the through hole is 0.1~0.3mm larger than the outer diameter of the tube. This facilitates the feeding mechanism to transport the tube into the through hole, while also reducing the degree of tube offset during beveling and cutting, further improving cutting accuracy and beveling accuracy.

[0013] In one alternative embodiment, along the axial direction, the through hole has a first hole segment and a second hole segment connected to each other, with the second hole segment located at the end of the first hole segment away from the first groove, and the second groove penetrating the first hole segment. Along the direction approaching the first hole segment, the inner diameter of the second hole segment gradually decreases until it matches the inner diameter of the first hole segment.

[0014] In the above implementation process, the second hole section, which is farther away from the first groove, is set as a frustum shape with a gradually decreasing inner diameter. This guides the pipe conveyed by the feeding mechanism to smoothly pass into the first hole section, effectively improving the jamming and offset phenomena. Furthermore, by making the second groove pass through the first hole section, the cutting mechanism can reduce the probability of pipe deformation during cutting when cutting the pipe along the second groove, thanks to the support of the first hole section.

[0015] In one alternative implementation, the positioning mechanism includes multiple blocks detachably connected to the frame, the multiple blocks having through holes of different diameters, and one of the blocks can be selectively connected to the frame.

[0016] In the above implementation process, multiple blocks with different through hole diameters are configured in the pipe beveling and cutting equipment to meet the beveling and cutting needs of pipes with different outer diameters. When it is necessary to beveling and cutting a pipe with a certain outer diameter, a block matching the outer diameter of the pipe can be installed on the frame. The pipe is fed into the through hole of the block using a feeding mechanism. Then, the beveling mechanism drives the first blade to extend axially into the first groove of the block to cut the pipe. The cutting mechanism drives the second blade to extend axially into the second groove of the block to cut the pipe, thereby obtaining a finished pipe with a notch of a set length.

[0017] In one alternative embodiment, the feeding mechanism includes a feeding belt and a drive unit for moving the feeding belt, the feeding belt being used to convey the pipe into the through hole.

[0018] In the above implementation process, belt conveyor is used to transport pipes. The belt conveyor structure is simple and easy to maintain, which can reduce the cost of pipe cutting equipment.

[0019] In one alternative embodiment, the feed belt includes a first belt and a second belt spaced apart, with a gap between the first belt and the second belt for the pipe to pass through and be pressed. A drive unit drives the first belt and the second belt to rotate synchronously in opposite directions at a set speed.

[0020] In the above implementation process, a first belt and a second belt, spaced apart by a drive unit, rotate in opposite directions at a set speed. After the pipe is threaded through the gap between the two belts, it can be conveyed to the positioning mechanism at the rear end. Furthermore, by using the two belts to press the pipe together, not only can the friction between the pipe and the belts be increased, reducing the probability of the pipe slipping and not being conveyed to the correct position, but the axial direction of the pipe can also be fixed during the cutting and beveling process, reducing the probability of the pipe shifting axially and further improving the cutting and beveling accuracy.

[0021] In one alternative embodiment, the cutting mechanism includes a first telescopic member connected to the first blade, the fixed end of the first telescopic member being disposed on the frame, and the movable end of the first telescopic member extending and retracting axially to selectively drive the first blade into or out of the first groove.

[0022] In the above implementation process, a first telescopic component is installed at the frame. After the feeding mechanism transports the pipe to the predetermined position of the through hole in the block, the first telescopic component can be used to extend axially to drive the first blade into the first groove, cutting the pipe in the first groove to form a notch of a predetermined depth. After cutting is completed, the first telescopic component can be used to retract axially to drive the first blade out of the first groove, so that it can re-enter the groove for cutting or be removed from the through hole.

[0023] In one alternative embodiment, the cutting mechanism includes a second telescopic member connected to the second blade. The fixed end of the second telescopic member is disposed on the frame, and the movable end of the second telescopic member extends and retracts along the axial cross direction to selectively drive the second blade into or out of the second groove.

[0024] In the above implementation process, a second telescopic component is installed at the frame. After the feeding mechanism conveys the pipe to the designated position of the through hole in the block, the second telescopic component's elongation movement along the axial direction can drive the second blade to gradually enter the second groove, cutting the pipe within the groove. After cutting, the second telescopic component's shortening movement along the axial direction can drive the second blade out of the second groove, facilitating subsequent re-entry into the groove for cutting or removal of the finished pipe product from the through hole.

[0025] In one optional embodiment, the cutting mechanism further includes a first adjusting member disposed on the frame, the fixed end of the first telescopic member being connected to the frame via the first adjusting member, and the first adjusting member being configured to adjust the axial position of the first telescopic member.

[0026] In the above implementation process, a first adjusting member is set at the frame. Since the extension length of the first telescopic member is fixed, when it is necessary to adjust the depth of the cutting edge, the first adjusting member can be used to adjust the axial position of the first telescopic member, thereby adjusting the depth to which the first telescopic member drives the first blade into the first groove.

[0027] For example, when a pipe with a small notch depth is required, the position of the first telescopic member can be moved away from the first groove by the first adjusting member, thereby increasing the axial distance between the first telescopic member and the first groove, and thus reducing the depth of the first blade entering the first groove.

[0028] Conversely, if a pipe with a large notch depth is to be obtained, the position of the first telescopic member can be moved closer to the first groove using the first adjusting member, thereby reducing the axial distance between the first telescopic member and the first groove and increasing the depth of the first blade entering the first groove.

[0029] In one optional embodiment, the cutting mechanism further includes a second adjusting member disposed on the frame, the fixed end of the second telescopic member being connected to the frame via the second adjusting member, and the second adjusting member being configured to adjust the position of the second telescopic member in the axial direction of the cross direction.

[0030] In the above implementation process, a second adjusting member is set at the frame. Since the extension length of the second telescopic member is fixed, when it is necessary to cut pipes with different outer diameters, the position of the second telescopic member along the axial direction can be adjusted by the second adjusting member, thereby adjusting the depth at which the second telescopic member drives the second blade into the second groove.

[0031] For example, when large-sized pipes need to be cut, the position of the second telescopic member can be moved closer to the second groove using the second adjusting member, thereby reducing the distance between the second telescopic member and the second groove in the axial direction of their intersection, and thus increasing the depth of the second blade entering the second groove.

[0032] Conversely, when cutting pipes with small outer diameters, in order to reduce the stroke of the second blade in the second groove and reduce the chance of blade jamming, the position of the second telescopic member can be moved away from the second groove using the second adjusting member, increasing the distance between the second telescopic member and the second groove in the axial direction of intersection, thereby reducing the depth of the second blade entering the second groove.

[0033] In one alternative embodiment, the pipe cutting device is further provided with a receiving box, which is located below the side of the block near the first groove to receive the cut pipe product.

[0034] In the above implementation process, a receiving box is set below the side of the block near the first groove. After the cutting and trimming are completed, as the feeding mechanism continues to feed, the finished pipe will be pushed out of the through hole and fall into the receiving box, thus automatically collecting the finished pipe. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0036] Figure 1 This is a schematic diagram of the structure of the finished pipe product provided in the embodiments of this application; Figure 2 This is a schematic diagram of the pipe beveling and cutting equipment provided in the embodiments of this application; Figure 3 This is a schematic diagram of the feeding mechanism provided in an embodiment of this application; Figure 4 A schematic diagram of the positioning mechanism provided in the embodiments of this application; Figure 5 A schematic cross-sectional view of the block provided in an embodiment of this application; Figure 6 A schematic diagram showing the dimensions of the first groove provided in an embodiment of this application; Figure 7 for Figure 2 A magnified view of part A in the middle; Figure 8 This is a schematic diagram of the cutting mechanism provided in an embodiment of this application.

[0037] Icons: 100 - Pipe beveling and cutting equipment; 1 - Frame; 11 - Housing; 12 - Feed hole; 2 - Feeding mechanism; 21 - Feeding belt; 211 - First belt; 212 - Second belt; 22 - Drive component; 3 - Positioning mechanism; 31 - Block; 32 - Through hole; 321 - First hole segment; 322 - Second hole segment; 33 - First groove; 34 - Second groove; 4 - Beveling mechanism; 41 - First blade; 42 - First telescopic component; 5 - Cutting mechanism; 51 - Second blade; 52 - Second telescopic component; 6 - Receiving box; 7 - Control mechanism; L1 - Width of the first groove; L2 - Length of the first groove; L3 - Diameter of the through hole; D1 - Axial direction; D2 - Crossing direction of the axial direction; 200 - Pipe; 300 - Finished pipe; 301 - Notch. Detailed Implementation

[0038] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0040] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0042] In the description of the embodiments of this application, the technical terms "middle", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0043] In the fabrication of minimally invasive interventional products such as catheters, various catheters are often covered and protected with heat shrink tubing of a certain length before being fused together. During the fabrication of the heat shrink tubing, it is necessary to cut it into different lengths. Please refer to [link / reference needed]. Figure 1 To facilitate connection with the outer pipe, a notch 301 is usually cut at one end of the finished pipe 300, dividing one end of the finished pipe 300 into two along its radial direction.

[0044] However, most cutting and slitting operations currently use a single fixture or equipment that separates the cutting and slitting functions. Cutting requires a dedicated fixture / equipment, while slitting requires a separate set of independent equipment or manual assistance. There are time-consuming steps between processes, such as equipment switching, material transfer and repositioning, and continuous production cannot be achieved. Manual assistance in positioning also increases the scrap rate and results in low production capacity.

[0045] Therefore, this application provides a pipe cutting and trimming device, which can cut and trim various pipes, including heat shrink tubing, to a certain extent, and improve processing accuracy and production capacity. To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0046] Please see Figure 2 This application provides a pipe cutting and trimming device 100, including a frame 1, and a feeding mechanism 2, a positioning mechanism 3, a cutting mechanism 4 and a trimming mechanism 5 disposed on the frame 1.

[0047] In this regard, please combine Figure 2 , Figures 4-6 The positioning mechanism 3 includes a block 31, and a through hole 32 is provided inside the block 31. The feeding mechanism 2 is configured to transport the pipe 200 into the through hole 32, and the wall of the through hole 32 is configured to circumferentially limit the pipe 200.

[0048] The block 31 is also provided with a first groove 33 extending along the axial direction D1 of the through hole 32, and a second groove 34 extending along the axial direction D2. The opening of the first groove 33 is located at one end of the through hole 32, and the opening of the second groove 34 is located on the peripheral wall of the block 31. The first groove 33 and the second groove 34 are spaced apart in the axial direction D1.

[0049] In this regard, please combine Figure 2 , Figure 7 and Figure 8 The shaving mechanism 4 is configured to drive the first blade 41 to extend into the first groove 33 along the axial direction D1 to cut the pipe 200, so that two opposing notches 301 are formed on one end of the pipe. The cutting mechanism 5 is configured to drive the second blade 51 to extend into the second groove 34 along the axial direction D2 to cut the pipe 200.

[0050] The first groove 33 extends along the axial direction D1, meaning that the depth direction of the first groove 33 (from the groove opening to the groove bottom) coincides with the axial direction D1 of the through hole 32. The second groove 34 extends along the intersecting direction D2 of the axial direction, meaning that the depth direction of the second groove 34 intersects the axial direction D1. As an example, the intersecting direction D2 of the axial direction can be perpendicular to the axial direction D1. It is understood that the perpendicularity in this application refers to an approximate perpendicularity that can be achieved industrially, not absolute perpendicularity in a mathematical sense.

[0051] The spacing between the second groove 34 and the first groove 33 along the axial direction D1 of the through hole 32 means that the first groove 33 and the second groove 34 are not directly connected, that is, the groove wall of the first groove 33 and the groove wall of the second groove 34 are spaced a certain distance along the axial direction D1.

[0052] The frame 1 supports the feeding mechanism 2, positioning mechanism 3, cutting mechanism 4, and cutting mechanism 5, ensuring a relatively stable positional relationship between these mechanisms and facilitating the positioning, cutting, and trimming of the pipe 200. This application does not limit the specific location of the frame 1; please refer to further details in some embodiments. Figure 2 ( Figure 2 (This is a schematic diagram of the interior of the box when it is opened). The frame 1 can be the box 11, and the feeding mechanism 2, positioning mechanism 3, cutting mechanism 4 and cutting mechanism 5 are all located inside the box 11.

[0053] Furthermore, to facilitate the inspection and maintenance of the feeding mechanism 2, positioning mechanism 3, cutting mechanism 4, and cutting mechanism 5 inside the housing 11, and to facilitate the removal of the finished pipe product 300 after processing, in some embodiments, a door (not shown in the figure) can be provided at the housing 11. The way the door is set can refer to conventional door designs, and this application does not impose any limitations.

[0054] Furthermore, since the pipe 200 is usually quite long before cutting, in order to reduce the space occupied by the box 11 and facilitate the continuous conveying of the pipe 200 to the feeding mechanism 2 inside the box 11, in some embodiments, a feed hole 12 can be provided on the box wall of the box 11. Figure 2 (This is a schematic diagram of the interior of the box after it has been cut open along the feed hole on the box wall). The feed hole 12 is provided for the pipe 200 to pass into the box 11 and connect with the feeding mechanism 2.

[0055] As an example, the housing 11 is assembled from a front panel, a bottom plate, side plates, a back plate, and a top plate, forming an installation space inside. A feed hole 12 is provided at one of the side plates to meet the assembly and positioning requirements of the corresponding mechanism.

[0056] Furthermore, in order to facilitate the start and stop of the various mechanisms inside the housing 11, in some embodiments, a corresponding control panel and operation buttons can be provided on the top plate.

[0057] The feeding mechanism 2 is used to continuously convey the pipe 200 to the positioning mechanism 3 at the rear end. This application does not limit the specific type of the feeding mechanism 2; in some embodiments, please refer to... Figure 3 The feeding mechanism 2 includes a feeding belt 21 and a drive unit 22 for driving the feeding belt 21 to move. The feeding belt 21 is used to transport the pipe 200 into the through hole 32.

[0058] As an example, the drive unit 22 can be a drive motor, the output end of which is connected to the drive gear, driving the drive gear to rotate. The feed belt 21 is fitted onto the drive gear and the driven gear and meshes with the gears (it can be understood that a gear is provided on the inner side of the feed belt 21, not shown in the figure). When the drive motor drives the drive gear to rotate, the feed belt 21 will rotate under the meshing action of the gears. During this period, the driven gear will rotate under the action of the rotation of the feed belt 21. The cooperation of the drive gear and the driven gear can support the feed belt 21 and enable the feed belt 21 to rotate more stably and smoothly, thereby conveying the pipe 200 placed above the feed belt 21 to the positioning mechanism 3 at the rear end.

[0059] It is understandable that the pipe 200 placed on the feeding belt 21 needs to have a certain amount of friction with the feeding belt 21. This friction can come from the weight of the pipe 200 itself, or an anti-slip coating can be applied to the surface of the feeding belt 21 to increase the friction between the pipe 200 and the feeding belt 21. As an example, the anti-slip coating can be a silicone layer.

[0060] To further increase the friction between the pipe 200 and the feeding belt 21 and reduce the chance of the pipe 200 slipping, in some embodiments, please refer to [the relevant documentation]. Figure 3 The feeding belt 21 includes a first belt 211 and a second belt 212 spaced apart. The gap between the first belt 211 and the second belt 212 is used for the pipe 200 to pass through and for pressing the pipe 200. The driving member 22 drives the first belt 211 and the second belt 212 to rotate synchronously in opposite directions at a set speed.

[0061] As an example, two vertically spaced mounting seats can be provided at the frame 1 of the housing 11 structure, and two drive motors can be fixed to the side plate of the housing 11 via the two mounting seats. Then, a drive gear is connected to each drive motor in a corresponding manner, and two vertically spaced support columns are connected to the side plate, with a driven gear rotatably connected to each support column. The rotatable connection can be, for example, through pulleys. A belt is provided at each set of drive and driven gears, forming a structure with two belts spaced apart, creating a gap between the two belts for the pipe 200 to pass through. To facilitate the clamping of the pipe 200 by the two belts, the height position between the support columns and mounting seats can be adjusted so that the gap between the two belts is slightly smaller than the outer diameter of the pipe 200, allowing the belts to deform appropriately and clamp the pipe 200. The two drive motors rotate in opposite directions, for example, one drive motor rotates clockwise and the other rotates counterclockwise, so that the two belts move synchronously in opposite directions, thereby conveying the pipe 200 placed in the gap between the two belts to the positioning mechanism 3 at the rear end.

[0062] Furthermore, by using the first belt 211 and the second belt 212 to press the pipe 200, the axial direction D1 of the pipe 200 can be positioned when the pipe 200 extending into the through hole 32 is subsequently beveled or cut, reducing the probability of the pipe 200 slipping along the axial direction D1 and further improving the processing accuracy.

[0063] The positioning mechanism 3 includes a block 31, and a through hole 32 is provided inside the block 31. In order to facilitate the feeding belt 21 to transport the pipe 200 into the through hole 32 more smoothly, the center line between the two belts can be collinear with the axis of the through hole 32, so that the pipe 200 can be moved into the through hole 32 by the feeding mechanism 2 in an approximately straight line.

[0064] To further facilitate the insertion of the tube 200 into the through hole 32, in some embodiments, please refer to Figure 5 Along the axial direction D1 of the through hole 32, the through hole 32 has a first hole segment 321 and a second hole segment 322 connected to each other, and the second hole segment 322 is located at the end of the first hole segment 321 away from the first groove 33, and the second groove 34 penetrates the first hole segment 321. Along the direction close to the first hole segment 321, the inner diameter of the second hole segment 322 gradually decreases until it is consistent with the inner diameter of the first hole segment 321. That is, the second hole segment 322 has a frustum-shaped or trumpet-shaped structure.

[0065] As an example, the inclination angle of the second hole section 322 can be 30~60°. The inclination angle refers to the angle between the hole wall of the second hole section 322 and the axis.

[0066] To further improve the positioning accuracy of the through hole 32 for the tube 200, in some embodiments, the diameter L3 of the through hole is 0.1~0.3mm larger than the outer diameter of the tube 200.

[0067] As an example, when the through hole 32 is composed of a first hole segment 321 and a second hole segment 322, the diameter of the first hole segment 321 of the through hole 32 is 0.1~0.3mm larger than the outer diameter of the pipe 200.

[0068] To facilitate the cutting of the tube 200 extending into the through hole 32, the block 31 provided in this embodiment of the application is also provided with a first groove 33. In some embodiments, please continue to refer to Figure 4 and Figure 5 The first groove 33 extends along the axial direction D1 and is centrally symmetrical about the axis of the through hole 32. The width L1 of the first groove is less than the diameter L3 of the through hole and the length L2 of the first groove.

[0069] Please continue reading. Figure 4 , Figure 5 and Figure 6 The first groove 33 is centrally symmetrically arranged around the axis of the through hole 32, meaning that the first groove 33 has two first groove sidewalls arranged opposite each other along the width direction, and the center line of symmetry of the two groove sidewalls is the axis of the through hole 32. The width L1 of the first groove is less than the diameter L3 of the through hole, so when the first blade 41 extends into the first groove 33, the first blade 41 can cut in from a position close to the center of the tube 200. The length L2 of the first groove is greater than the diameter L3 of the through hole, so when the first blade 41 cuts in from a position close to the center of the tube 200, the first blade 41 can cut off the tube walls at both radial ends of the tube 200, forming a shape similar to... Figure 1 The notch 301 is shown. It can be understood that a portion of the first groove 33 and the through hole 32 overlap each other. When the first blade 41 performs cutting, the tube 200 will extend into the through hole 32 at the position corresponding to the first groove 33.

[0070] To further improve the cutting accuracy of the first blade 41 from a position close to the center of the tube 200, in some embodiments, the width L1 of the first groove is 0.1~0.3mm larger than the thickness of the first blade 41. The thickness of the first blade 41 refers to the dimension between the two large faces of the blade.

[0071] The depth of the first groove 33 can be long enough but not longer than the length of the target pipe finished product 300. During cutting, the first blade 41 can enter the set position in the first groove 33 under the driving action of the cutting mechanism 4 to obtain a cut of the corresponding depth, without having to touch the bottom of the first groove 33.

[0072] Furthermore, in some embodiments, the first groove 33 can be configured as a through groove structure, that is, the two sides of the first groove 33 in the length direction penetrate through the side wall of the block 31, which can accommodate first blades 41 of different lengths.

[0073] In some embodiments, the second groove 34 extends along the axial cross direction D2 and penetrates the through hole 32.

[0074] The second groove 34 penetrates the through hole 32, meaning that the bottom and sidewalls of the second groove 34 are located outside the circumference of the through hole 32. When the second blade 51 extends into the second groove 34, it can cut the pipe 200 along its axial direction D2. It can be understood that after the first blade 41 cuts the pipe 200 along the first groove 33, it will cut two notches 301 circumferentially into a portion of the pipe wall. After the second blade 51 cuts the pipe 200 along the second groove 34, it will cut the pipe 200 into two separate pipes 200.

[0075] Furthermore, in order to improve the cutting accuracy of the tube 200, in some embodiments, the width of the second groove 34 (the dimension along the axial direction D1) is 0.1~0.3mm larger than the thickness of the second blade 51.

[0076] Furthermore, in order to facilitate the cutting and shaving of pipes 200 with different outer diameters, in some embodiments, the positioning mechanism 3 includes multiple blocks 31 that are detachably connected to the frame 1. The diameters of the through holes 32 in the multiple blocks 31 are different, and one of the blocks 31 can be selectively connected to the frame 1.

[0077] Understandably, the difference between the multiple blocks 31 lies in the diameter of their internal through holes 32, while the relative positions of the first groove 33 and the second groove 34 on each block 31 with respect to the through hole 32 remain unchanged. The connection points where each block 31 is detachably connected to the frame 1 are also the same. As an example, the detachable connection can be a threaded connection, with threaded holes provided at the same locations on each block 31.

[0078] In the cutting mechanism 4, in order to facilitate the driving of the first blade 41 to extend into the first groove 33 along the axial direction D1 to cut the tube 200 in the first groove 33, in some embodiments, the cutting mechanism 4 includes a first telescopic member 42 connected to the first blade 41. The fixed end of the first telescopic member 42 is provided on the frame 1, and the movable end of the first telescopic member 42 moves along the axial direction D1 to selectively drive the first blade 41 into or out of the first groove 33.

[0079] As an example, the first telescopic component 42 includes a first telescopic cylinder, the fixed end of which is connected to the bottom plate of the housing 11.

[0080] Furthermore, in order to improve the connection stability between the telescopic cylinder and the first blade 41, in some embodiments, a U-shaped clamp can be connected to the end of the movable end of the telescopic cylinder to clamp the back part of the first blade 41 in the U-shaped clamp.

[0081] Furthermore, to facilitate cutting at different depths, in some embodiments, the position of the first telescopic member 42 along the axial direction D1 can be adjusted using a first adjusting member (not shown in the figure). As an example, the first adjusting member can be an electric slide rail located on the bottom plate of the housing 11, with the fixed end of the first telescopic member 42 fixedly connected to the slider of the electric slide rail. The electric slide rail is a conventional slide rail in the art, and this application does not limit its use; for example, it can be a linear movement structure with a lead screw and nut.

[0082] Alternatively, a strip-shaped threaded hole can be provided on the bottom plate of the housing 11. The extension direction of the strip-shaped threaded hole is consistent with the axial direction D1. The fixed end of the first telescopic member 42 can be connected to a certain position of the strip-shaped threaded hole by screws as needed.

[0083] Similarly, to facilitate the cutting mechanism 5 driving the second blade 51 into the second groove 34, in some embodiments, the cutting mechanism 5 includes a second telescopic member 52 connected to the second blade 51. The fixed end of the second telescopic member 52 is disposed on the frame 1, and the movable end of the second telescopic member 52 extends and retracts along the axial cross direction D2 to selectively drive the second blade 51 into or out of the second groove 34. As an example, the second telescopic member 52 includes a second telescopic cylinder. It is understood that the extension and retraction directions of the first telescopic cylinder and the second telescopic cylinder are perpendicular. As an example, the extension and retraction direction of the first telescopic cylinder can be horizontal, and the extension and retraction direction of the second telescopic cylinder can be vertical.

[0084] Furthermore, to facilitate the cutting of pipes 200 with different outer diameters, in some embodiments, the position of the second telescopic member 52 along the axial cross direction D2 can be adjusted using a second adjusting member (not shown in the figure). As an example, the second adjusting member can be an electric slide rail located on the side plate of the housing 11, with the fixed end of the second telescopic member 52 fixedly connected to the slider of the electric slide rail. The electric slide rail is a conventional slide rail in the art, and this application does not limit it; for example, it can be a linear movement structure with a lead screw and nut. Alternatively, a strip-shaped threaded hole can be provided on the side plate of the housing 11, with the extension direction of the strip-shaped threaded hole consistent with the axial cross direction D2. The fixed end of the second telescopic member 52 can be connected to a certain position in the strip-shaped threaded hole by screws as needed.

[0085] Furthermore, to facilitate the collection of the finished pipe products 300, in some embodiments, please continue to refer to... Figure 2The pipe cutting and trimming equipment 100 is also equipped with a receiving box 6, which is located below the side of the block 31 near the first groove 33 to receive the finished pipe 300 after cutting. As an example, one end of the receiving box 6 is located below the end of the block 31 near the first groove 33, and the other end of the receiving box 6 extends along the axial direction D1 away from the first groove 33.

[0086] Furthermore, in some embodiments, a buffer pad can be provided on the inner wall of the receiving box 6, which can be made of materials such as aluminum alloy, stainless steel, acrylic or food-grade plastic.

[0087] To further improve the automation level of the pipe beveling and cutting equipment 100, in some embodiments, the pipe beveling and cutting equipment 100 is also provided with a control mechanism 7. The control mechanism 7 includes a control main board, which is electrically connected to electronic components such as the drive motor of the feeding mechanism 2, the telescopic cylinder of the beveling mechanism 4 and the cutting mechanism 5. It can receive input parameters, output control signals, and receive feedback signals from each actuator in real time to realize automated control of the equipment operation process.

[0088] The working principle of the pipe beveling and cutting device 100 provided in this embodiment is as follows: When using the pipe cutting and trimming equipment 100 provided in this application embodiment to cut and trim heat shrink tubing and other tubing 200, the tubing 200 to be cut can be fed to the feeding mechanism 2. The feeding mechanism 2 conveys the tubing 200 into the through hole 32 of the block 31, limiting the position of the tubing 200 relative to the first groove 33 and the second groove 34. Then, the trimming mechanism 4 drives the first blade 41 to gradually extend into the first groove 33, cutting the tubing 200 in the first groove 33 along its axial direction D1 to form a notch 301. Then, the trimming mechanism 5 drives the second blade 51 to cut the tubing 200 along the axial direction D2 to obtain a finished tubing 300 of a set length with a notch 301.

[0089] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pipe beveling and cutting device, characterized in that, It includes a frame, and a feeding mechanism, a positioning mechanism, a cutting mechanism and a trimming mechanism disposed on the frame; The positioning mechanism includes a block with a through hole inside. The feeding mechanism is configured to transport the pipe into the through hole, and the wall of the through hole is configured to circumferentially limit the pipe. The block also has a first groove extending axially along the through hole and a second groove extending in a direction intersecting the axial direction. The opening of the first groove is located at one end of the through hole, and the opening of the second groove is located on the peripheral wall of the block. The first groove and the second groove are spaced apart axially. The cutting mechanism is configured to drive the first blade to extend into the first groove along the axial direction to cut the pipe, so that two oppositely arranged notches are formed on one end of the pipe's peripheral wall. The cutting mechanism is configured to drive a second blade to extend into the second groove in a cross direction along the axial direction to cut the pipe.

2. The pipe beveling and cutting equipment according to claim 1, characterized in that, The first groove is centrally symmetrical about the axis of the through hole, and the width of the first groove is less than the diameter of the through hole and the length of the first groove. And / or, the second groove extends through the through hole.

3. The pipe beveling and cutting equipment according to claim 2, characterized in that, The width of the first groove is 0.1~0.3mm greater than the thickness of the first blade; And / or, the diameter of the through hole is 0.1 to 0.3 mm larger than the outer diameter of the pipe.

4. The pipe beveling and cutting equipment according to claim 2, characterized in that, Along the axial direction, the through hole has a first hole segment and a second hole segment connected to each other, and the second hole segment is located at the end of the first hole segment away from the first groove, and the second groove passes through the first hole segment; along the direction close to the first hole segment, the inner diameter of the second hole segment gradually decreases to be consistent with the inner diameter of the first hole segment.

5. The pipe beveling and cutting equipment according to any one of claims 1 to 4, characterized in that, The positioning mechanism includes multiple blocks that are detachably connected to the frame. The diameters of the through holes in the multiple blocks are different, and one of the blocks can be selectively connected to the frame.

6. The pipe beveling and cutting equipment according to any one of claims 1 to 4, characterized in that, The feeding mechanism includes a feeding belt and a driving component for moving the feeding belt. The feeding belt is used to transport the pipe into the through hole.

7. The pipe beveling and cutting equipment according to claim 6, characterized in that, The feeding belt includes a first belt and a second belt spaced apart, with the gap between the first belt and the second belt used for the pipe to pass through and be pressed against the pipe; the driving member drives the first belt and the second belt to rotate synchronously in opposite directions at a set speed.

8. The pipe beveling and cutting equipment according to any one of claims 1 to 4, characterized in that, The cutting mechanism includes a first telescopic member connected to the first blade. The fixed end of the first telescopic member is disposed on the frame, and the movable end of the first telescopic member extends and retracts along the axial direction to selectively drive the first blade into or out of the first groove. And / or, the cutting mechanism includes a second telescopic member connected to the second blade, the fixed end of the second telescopic member being disposed on the frame, and the movable end of the second telescopic member extending and retracting in a cross direction along the axial direction to selectively drive the second blade into or out of the second groove.

9. The pipe beveling and cutting equipment according to claim 8, characterized in that, The cutting mechanism further includes a first adjusting member disposed on the frame, the fixed end of the first telescopic member is connected to the frame through the first adjusting member, and the first adjusting member is configured to adjust the position of the first telescopic member along the axial direction; And / or, the cutting mechanism further includes a second adjusting member disposed on the frame, the fixed end of the second telescopic member being connected to the frame via the second adjusting member, the second adjusting member being configured to adjust the position of the second telescopic member in the cross direction along the axial direction.

10. The pipe beveling and cutting equipment according to claim 1, characterized in that, The pipe cutting and trimming equipment is also equipped with a receiving box, which is located below the side of the block near the first groove to receive the finished pipe after cutting.

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