A metal hose net braiding device without overlapping

Abstract

The application discloses a metal hose net weaving device without overlapping wires and relates to the technical field of weaving machines. The metal hose net weaving device comprises a rack and a hollow pipe fixed on the rack. The hollow pipe is used for conveying metal hoses to perform net weaving. The metal hose net weaving device further comprises a transition pipe. The transition pipe is connected with the end heads of two adjacent metal hoses through clamping. The outer diameter of the transition pipe is the same as that of the metal hose. The metal hose net weaving device provided by the application can connect two adjacent metal hoses through the transition pipe, so that the weaving of two or more metal hoses becomes a continuous process. The tension of the steel wire is reduced and increased with the discontinuous process of the net weaving and the covering of the pipe, and the quality problems of the end head parts of the two metal hoses are avoided.

Description

Technical Field

[0001] This invention relates to the field of braiding machine technology, and more specifically to a braiding device for a non-overlapping metal flexible hose mesh sleeve. Background Technology

[0002] Metal hoses are used in industries such as petrochemicals, nuclear power, automobile manufacturing, pharmaceutical manufacturing, and aerospace. As an important component for connecting and transporting media, metal hoses require a braided mesh sleeve on the outside of the hose during the production process to enhance their pressure resistance. The mesh sleeve is usually woven from metal wire (such as stainless steel wire) or other high-strength materials (such as polyester fiber).

[0003] For example, the patent document with authorization announcement number CN211071616U, authorization announcement date July 24, 2020, and titled "A Braiding Assembly for a Steel Wire Braiding Machine and a Steel Wire Braiding Machine Using the Braiding Assembly," includes a central shaft, a front spindle, a rear spindle, a motor, a reducer, a front plate, and a rear plate, with both the front and rear plates coaxially mounted on the central shaft. This patent employs a braiding method where the front and rear spindles rotate in opposite directions along the circumference, reducing resistance during mechanical operation and minimizing mechanical wear.

[0004] In the existing technology, the length of the metal hose is limited, while the weaving of the braided sleeve is continuous. At the junction of two metal hoses, the braiding of the braided sleeve is prone to overlapping, which can easily lead to quality problems at the end of the product. Summary of the Invention

[0005] The purpose of this invention is to provide a non-overlapping metal hose braiding device to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A non-overlapping metal flexible hose braiding device includes a frame and a hollow tube fixed on the frame. The hollow tube is used to transport metal flexible hoses for braiding. It also includes a transition tube, the two ends of which are respectively snapped to the ends of two adjacent metal flexible hoses. The outer diameter of the transition tube is the same as the outer diameter of the metal flexible hose.

[0008] The aforementioned non-overlapping metal hose braiding device has a hollow transition tube with snap-fit ​​grooves at both ends that are adapted to the ends of the metal hose.

[0009] The aforementioned non-overlapping metal flexible hose braiding device has a first fixing plate fixed on the hollow tube.

[0010] The aforementioned non-overlapping metal flexible hose braiding device has a second fixing plate fixed on the frame.

[0011] The aforementioned non-overlapping metal flexible hose braiding device has a movable disc slidably connected to the hollow tube along its axial direction.

[0012] The aforementioned non-overlapping metal flexible hose braiding device has a groove constructed along its axial direction on the outer wall of the hollow tube, and the movable disc is slidably connected in the groove.

[0013] The aforementioned non-overlapping metal flexible hose braiding device has a drive assembly on the frame for driving the movable disc to slide back and forth along the hollow tube.

[0014] The aforementioned non-overlapping metal flexible hose braiding device includes a drive assembly comprising a drive motor fixed on a frame and a drive disc fixed at the output end of the drive motor. A drive rod is hinged to one side of the drive disc off the central axis, and the end of the drive rod is hinged to the movable disc.

[0015] The aforementioned non-overlapping metal hose braiding device has a tension wheel and two conveying wheels rotatably connected to the frame for conveying steel wire. The conveying wheels and tension wheels are located on opposite sides of the steel wire, and the frame is provided with a clamping assembly for forcing the tension wheel to contact the steel wire.

[0016] The aforementioned non-overlapping metal hose braiding device includes a tightening assembly comprising a movable block slidably connected to the frame and rotatably connected to a tension wheel, wherein an elastic element is provided between the movable block and the frame.

[0017] In the above technical solution, the present invention provides a non-overlapping wire metal hose mesh weaving device, which can connect two adjacent metal hoses together by setting a transition tube, so that the weaving of two or more metal hoses becomes a continuous process. This avoids the tension of the steel wire decreasing and increasing with the intermittent process of empty weaving and covering the tube when the device weaves the mesh on two metal hoses one after the other, and minimizes the quality problems at the ends of the two metal hoses. 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 schematic diagram of the overall structure provided for an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the movable disk structure provided in another embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the transition tube provided in another embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of a tension wheel structure provided in another embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Frame; 2. Hollow tube; 3. Flexible metal hose; 4. Transition tube; 5. Snap-fit ​​groove; 6. First fixed plate; 7. Second fixed plate; 8. Spindle; 9. Steel wire; 10. Movable plate; 11. Slide groove; 12. Drive motor; 13. Drive plate; 14. Drive rod; 15. Conveyor wheel; 16. Tension wheel; 17. Movable block; 18. Elastic element; 19. Movable groove. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1-4 This invention provides a non-overlapping metal hose braiding device, including a frame 1 and a hollow tube 2 fixed on the frame 1. The hollow tube 2 is used to transport metal hoses 3 for braiding. It also includes a transition tube 4, the two ends of which are respectively snapped to the ends of two adjacent metal hoses 3. The outer diameter of the transition tube 4 is the same as the outer diameter of the metal hoses 3.

[0027] Specifically, weaving a stainless steel braided sleeve onto the metal flexible hose 3 (i.e., the metal corrugated pipe) is a common way to increase the pressure resistance of the metal flexible hose 3. The length of the metal flexible hose 3 is limited, while the weaving of the braided sleeve is continuous. When the metal flexible hose 3 is sequentially fed into the hollow tube 2, there will be a certain gap between two adjacent metal flexible hoses 3. At this time, the phenomenon of empty weaving of the braided sleeve will occur (that is, there is no support point inside the woven braided sleeve, and the diameter of this section of the braided sleeve is small). This results in the process of the braided sleeve covering the tube - empty weaving - covering the tube weaving. Obviously, during this process, the tension of the steel wire 9 used to weave the braided sleeve goes through a process of large-small-large, which increases the probability of problems with the braided sleeve at the end of the metal flexible hose 3. The innovation of this invention lies in the provision of a transition tube 4 between two adjacent flexible metal hoses 3. The two ends of the transition tube 4 are respectively clamped to the ends of the two flexible metal hoses 3 (e.g., interference fit). The outer diameter of the transition tube 4 is the same as the outer diameter of the flexible metal hose 3 (the same as the outer diameter at the crest of the flexible metal hose 3). This allows the braided mesh to be sequentially woven onto the flexible metal hose 3, the transition tube 4, and the flexible metal hose 3. Thus, by using several transition tubes 4, the weaving of several or even dozens of flexible metal hoses 3 becomes a continuous process, minimizing large changes in the tension of the steel wire 9 during the braiding process. To avoid quality problems with the braided sleeve on the metal hose 3; due to the presence of the transition tube 4, the tension of several steel wires 9 is basically at a certain value, which will restrict and bind the metal hose 3 in multiple directions and uniformly during the weaving process, so as to force the metal hose 3 to pass through the hollow tube 2 relatively straight and move along the axis of the hollow tube 2; since the discrete weaving of the metal hose 3 is transformed into continuous weaving, the weaving equipment can directly bring the corrugated pipe into the working area during operation, eliminating the labor of manually pushing the corrugated pipe, thereby reducing the impact of uneven weaving caused by manual feeding.

[0028] It should be noted that in the prior art, when the braided mesh at the end of the metal hose 3 exhibits overlapping wires, the ends of the metal hose 3 and the braided mesh are generally cut to remove the defective parts. In the various embodiments of the present invention, the probability of overlapping wires at the end of the metal hose 3 is reduced by setting a transition tube 4, but the braided mesh at the end of the metal hose 3 still needs to be cut to separate the multiple metal hoses 3 that are woven together.

[0029] The present invention provides a non-overlapping wire metal hose mesh weaving device, which can connect two adjacent metal hoses 3 together by setting a transition tube 4, so that the weaving of two or more metal hoses 3 becomes a continuous process. This avoids the tension of the steel wire 9 decreasing and increasing with the intermittent process of empty weaving and covering the tube when the device weaves the mesh on two metal hoses 3 one after the other, and minimizes the quality problems at the ends of the two metal hoses 3.

[0030] In another embodiment of the present invention, the transition tube 4 is hollow inside, and both ends are provided with snap-fit ​​grooves 5 adapted to the ends of the metal hoses 3. Specifically, the outer diameter of the end of the metal hose 3 is generally smaller than the outer diameter of the crest of the metal hose 3. Therefore, snap-fit ​​grooves 5 can be provided at the ends of the transition tube 4 so that the ends of the metal hoses 3 can be inserted into the snap-fit ​​grooves 5. Thus, the crests of two adjacent metal hoses 3 can be connected together through the transition tube 4, and several metal hoses 3 can be formed into a continuous braiding process through multiple transition tubes 4.

[0031] Preferably, the length of the end of the metal flexible tube 3 is greater than the depth of the snap-fit ​​groove 5. This arrangement ensures that when the end of the metal flexible tube 3 is inserted into the corresponding snap-fit ​​groove 5, a portion of the end of the metal flexible tube 3 remains outside the groove, creating a certain gap between the end of the transition tube 4 and the crest of the metal flexible tube 3 (e.g., Figure 3 As shown in the figure, this makes it convenient to cut the mesh sleeve to divide it into several metal hoses 3.

[0032] In another embodiment of the present invention, a first fixing plate 6 is fixed on the hollow tube 2. A second fixing plate 7 is fixed on the frame 1. Specifically, in the prior art, the frame 1 is generally provided with a plurality of spindles 8 for conveying steel wires 9, so that the rotation of the plurality of spindles 8 drives the plurality of steel wires 9 to be braided on the metal hose 3. In order to increase the stability of the conveying of steel wires 9, a first fixing plate 6 is provided on the hollow tube 2 and a second fixing plate 7 is provided on the frame 1, so that after the steel wires 9 pass through the spindles 8, they can be sequentially overlapped on the second fixing plate 7 and the first fixing plate 6, and finally braided at the metal hose 3, thereby improving the stability of the braiding of steel wires 9.

[0033] Furthermore, a movable disc 10 is slidably connected to the hollow tube 2 along its axial direction. Specifically, the movable disc 10 is located between the first fixed disc 6 and the second fixed disc 7, and the diameter of the movable disc 10 is larger than that of the first fixed disc 6 but smaller than that of the second fixed disc 7. The sliding connection between the movable disc 10 and the hollow tube 2 can be achieved using a slide rail structure from the prior art. Preferably, the outer wall of the hollow tube 2 is constructed with a groove 11 along its axial direction, and the movable disc 10 is slidably connected within the groove 11, so that the movable disc 10 is stably slidably connected to the hollow tube 2, minimizing the rotation of the movable disc 10 on the hollow tube 2. The advantage of this arrangement is that, in the above embodiment, several steel wires 9 are sequentially overlapped on the second fixed disc 7 and the first fixed disc 6, and these steel wires 9 will cross and move on the first fixed disc 6 and the second fixed disc 7 (during the weaving process), which will cause some steel wires to... 9. Overlapping occurs on the first fixed plate 6 or the second fixed plate 7 (multiple strands of steel wire 9 are generally set at a spindle 8, and multiple steel wires 9 are arranged in sequence. If the multiple strands of steel wire 9 overlap, the mesh sleeve will also overlap). To address this, a movable plate 10 is slidably set on the hollow tube 2. During the process of several steel wires 9 crossing and weaving, the movable plate 10 slides along the hollow tube 2 to abut against the crossed steel wires 9, so as to force the steel wires 9 to separate from the first fixed plate 6 and the second fixed plate 7 at the same time. Then the movable plate 10 moves away from the steel wires 9, so that the steel wires 9 overlap again on the first fixed plate 6 and the second fixed plate 7 under tension. In this way, the steel wires 9 can be forced to oscillate on the first fixed plate 6 and the second fixed plate 7, so as to avoid the phenomenon of several steel wires 9 overlapping.

[0034] Furthermore, when the movable disc 10 contacts the steel wire 9, the overlapping point of the steel wire 9 moves to the position of the first fixed disc 6 or the second fixed disc 7. At this time, the movable disc 10 first contacts the steel wire 9 and then moves away from the steel wire 9 to force the overlapping point of the steel wire 9 to oscillate on the first fixed disc 6 or the second fixed disc 7. Preferably, the steel wires 9 have multiple overlapping points in the axial direction of the hollow tube 2. By setting the positions of the first fixed disc 6 and the second fixed disc 7, they can be respectively positioned to correspond to two overlapping points of the steel wire 9, so that when the movable disc 10 reciprocates along the hollow tube 2, it drives the two overlapping points of the steel wire 9 to oscillate on the first fixed disc 6 and the second fixed disc 7 respectively.

[0035] Preferably, the frame 1 is provided with a drive assembly for driving the movable disk 10 to reciprocate along the hollow tube 2. Specifically, the drive assembly can be a cylinder structure from the prior art, so that the movable disk 10 can be driven to reciprocate along the slide groove 11 by the extension and retraction of the cylinder. Optionally, the drive assembly includes a drive motor 12 fixed on the frame 1 and a drive disk 13 fixed on the output end of the drive motor 12. A drive rod 14 is hinged to one side of the drive disk 13 that is off the central axis, and the end of the drive rod 14 is hinged to the movable disk 10. The drive motor 12 and drive disk 13 are located between the movable disk 10 and the second fixed disk 7. The drive rod 14 is located between the drive disk 13 and the movable disk 10. One end of the drive rod 14 is hinged to the drive disk 13 and the other end is hinged to the movable disk 10. When the drive motor 12 drives the drive disk 13 to rotate, the hinge point between the drive disk 13 and the drive rod 14 moves back and forth towards or away from the movable disk 10. Thus, the drive rod 14 drives the movable disk 10 to move back and forth along the slide groove 11 towards or away from the first fixed disk 6. In this way, when the drive motor 12 is running, it can drive the movable disk 10 to move back and forth along the hollow tube 2, thereby adapting to the weaving of the net and driving the steel wire 9 to vibrate, so as to avoid the phenomenon of overlapping wires in the net.

[0036] In another embodiment of the present invention, further, a tension wheel 16 for conveying steel wires 9 and two conveying wheels 15 are rotatably connected to the frame 1. The conveying wheels 15 and the tension wheels 16 are respectively located on opposite sides of the steel wires 9. A clamping assembly for forcing the tension wheels 16 to contact the steel wires 9 is provided on the frame 1. Specifically, in the above embodiment, during the weaving process of the net, the tension of several steel wires 9 generally remains constant. However, due to the presence of the movable disc 10 and other factors, the tension of several steel wires 9 may still fluctuate. In order to minimize the impact of tension changes on the weaving of the net, conveying wheels 15 and tension wheels 16 are provided on the conveying path of the steel wires 9, such as... Figure 4 The diagram shows the conveying of the steel wire 9. In the conveying direction of the steel wire 9, both the conveying wheel 15 and the tension wheel 16 are located upstream of the spindle 8, and both the conveying wheel 15 and the tension wheel 16 are mounted on the frame 1. Figure 1On the extension of the frame 1, two conveying wheels 15 are located below the steel wire 9, and the tensioning wheel is located above the steel wire 9. The clamping assembly can be a spring structure or a counterweight structure as in the prior art. Optionally, the clamping assembly includes a movable block 17 that is slidably connected to the frame 1 and rotatably connected to the tensioning wheel 16. An elastic element 18 is provided between the movable block 17 and the frame 1. The frame 1 is constructed with a movable groove 19, which is located on the side of the corresponding steel wire 9 near the conveying wheel 15. The movable groove 19 is perpendicular to the conveying direction of the corresponding steel wire 9. The movable block 17 is slidably connected in the movable groove 19. The elastic element 18 can be a spring structure as in the prior art, with one end fixed to the bottom end of the movable block 17 and the other end fixed to the frame 1, so that the movable block 17 and the tensioning wheel are forced to move down and abut against the steel wire 9 by the elastic element 18. The advantage of this setup is that during the conveying process of the steel wire 9, its tension may fluctuate due to the movable disc 10 or other reasons. Therefore, a tensioning component is installed to compensate for the tension of the steel wire 9, minimizing the possibility of loosening during the weaving process, which could easily lead to wire overlap in the mesh. When the tension of the steel wire 9 is low, it is relatively loose. In this case, the elastic element 18 can pull the movable block 17, causing the tensioning wheel to descend and engage with the steel wire 9, thereby increasing its tension. Conversely, when the tension of the steel wire 9 is high, it can overcome the elastic force of the elastic element 18, keeping the steel wire 9 between the two conveying wheels 15 in a nearly straight state (e.g., ...). Figure 4 (As shown); This setting can compensate for the tension of the steel wire 9 and minimize the phenomenon of overlapping wires between the steel wire 9 and its woven mesh.

[0037] As a replacement or parallel option for the aforementioned elastic element 18, preferably, the movable block 17 is a counterweight, with a certain weight set according to the performance of the steel wire 9. The advantage of this arrangement is that, in the prior art, springs experience elastic fatigue after prolonged use, meaning the spring force cannot be maintained, and the spring force decreases after a long period of use. Therefore, the movable block 17 is set as a counterweight to replace or cooperate with the elastic element 18, so that gravity compensates for or complements the elastic force to compensate for the tension of the steel wire 9, thereby maximizing the weaving quality of the mesh.

[0038] 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 non-overlapping metal flexible hose braiding device, comprising a frame and a hollow tube fixed on the frame, wherein the hollow tube is used to convey a metal flexible hose for braiding the mesh, characterized in that, It also includes a transition tube, the two ends of which are respectively snapped to the ends of two adjacent metal hoses, and the outer diameter of the transition tube is the same as the outer diameter of the metal hose; after braiding, the mesh sleeve at the end of the metal hose is cut to separate the multiple metal hoses that are braided together. The transition tube is hollow inside, and both ends are constructed with snap-fit ​​grooves that are adapted to the ends of the metal flexible tube. The frame is rotatably connected to a tension wheel for conveying steel wire and two conveying wheels, which are located on opposite sides of the steel wire. The frame is provided with a clamping assembly for forcing the tension wheel to contact the steel wire. The clamping assembly includes a movable block that is slidably connected to the frame and rotatably connected to the tension wheel, and an elastic element is provided between the movable block and the frame.

2. The non-overlapping wire metal flexible hose braiding device according to claim 1, characterized in that, A first fixing plate is fixed on the hollow tube.

3. The non-overlapping wire metal flexible hose braiding device according to claim 2, characterized in that, A second fixing plate is fixed on the frame.

4. The non-overlapping wire metal flexible hose braiding device according to claim 3, characterized in that, A movable disc is slidably connected to the hollow tube along its axial direction.

5. The non-overlapping wire metal flexible hose braiding device according to claim 4, characterized in that, The outer wall of the hollow tube is provided with a groove along its axial direction, and the movable disk is slidably connected in the groove.

6. The non-overlapping wire metal flexible hose braiding device according to claim 4, characterized in that, The frame is equipped with a drive assembly for driving the movable disk to slide back and forth along the hollow tube.

7. The non-overlapping wire metal flexible hose braiding device according to claim 6, characterized in that, The drive assembly includes a drive motor fixed on the frame and a drive disk fixed at the output end of the drive motor. A drive rod is hinged to one side of the drive disk off the central axis, and the end of the drive rod is hinged to the movable disk.

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