Cable insulation layer wrapping molding mechanism and coating method thereof

Abstract

The present invention relates to the technical field of cable wrapping robots, and in particular to a cable insulation layer wrapping molding mechanism and a wrapping method thereof, the mechanism comprising: a bracket; a tugboat, which is rotatably connected to the bracket in parallel and at intervals, and the tugboat is provided with an annular groove matching the outer diameter of the wrapped cable; a preformed plate, which is arranged along the same arrangement direction as the tugboat, and the preformed plate is provided with a molding groove; a splitting and combining arm, which is symmetrically and rotatably arranged on the bracket, and the two splitting and combining arms are provided with molding pressing plates arranged toward each other; wherein, an insulating coil is also hung on the bracket, and the insulating tape unwound from the insulating coil is pre-laid in the annular groove and the molding groove, and the insulating tape has an adhesive area on one side of its width, and the insulating tape is configured to be stacked, closed and bonded together when the bracket rises to the overhead cable and contacts the pre-laid insulating tape, so as to form a tightly wrapped structure that fits the overhead line. The present invention improves the compactness and continuity of the insulating tape wrapping through the above-mentioned arrangement.

Description

Technical Field

[0001] The present invention relates to the technical field of cable wrapping robots, and in particular to a cable insulation layer wrapping molding mechanism and a wrapping method thereof. Background Art

[0002] At present, most power transmission cables are installed in an exposed manner, which poses certain safety hazards. The main solution is to cover the bare wires with an insulating layer to reduce safety hazards.

[0003] In the prior art, one way to coat the bare wire with an insulation layer is to spray the insulation layer on the cable. However, in actual implementation, it is found that the above-mentioned method of spraying while walking will result in uneven thickness when sprayed on the bare wire due to the gravity of the liquid insulation layer itself, and the insulation effect is not ideal.

[0004] In addition, a Chinese invention patent application with publication number CN108988232A disclosed an overhead bare cable automatic wrapping robot on December 11, 2018, which wraps the bare wire in the form of a wrapping leather buckle. The robot walks on the cable while wrapping the bare wire with an insulation layer, which improves the efficiency of the wrapping;

[0005] However, the above-mentioned insulation layer coating method adopts the form of buckles at the coating joint, and a certain margin needs to be left between the bare wire to ensure the reliability of the buckle. This results in that the coating of this structural form can only be adopted in sections, generally three or four meters as a section, in order to drain the accumulated water inside the coating insulation layer in this way, and the reliability of the coating cannot be guaranteed. Summary of the invention

[0006] In view of at least one of the above technical problems, the present invention provides a cable insulation layer wrapping molding mechanism and a coating method thereof, which adopts the form of insulating tape bonding coating to improve the reliability and continuity of the coating.

[0007] According to a first aspect of the present invention, there is provided a cable insulation layer wrapping and molding mechanism, comprising:

[0008] Bracket;

[0009] A tugboat, wherein a plurality of tugboats are provided, which are rotatably connected to the bracket in parallel and at intervals, and are arranged along the same straight line direction, and an annular groove matching the outer diameter of the cable with a sheath is provided on the tugboat;

[0010] A preformed plate, wherein a plurality of the preformed plates are provided and arranged along the same arrangement direction as the tugboat, and the preformed plates are provided with forming grooves;

[0011] Split-and-close arms are symmetrically and rotatably arranged on the bracket, and the two split-and-close arms are each provided with a forming press plate arranged toward each other, and the two forming press plates are configured to be staggered and closed above the forming groove when the two split-and-close arms are closed;

[0012] Among them, an insulating coil is also hung on the bracket, and the insulating tape unwound from the insulating coil is pre-laid in the annular groove and the forming groove. The insulating tape has an adhesive area on one side of its width. The insulating tape is configured so that when the bracket rises to the point where the overhead cable contacts the pre-laid insulating tape, the insulating tape is stacked, closed and bonded together under the action of the forming pressing plates of the two separation and combination arms to form a tightly wrapped structure that fits the overhead line.

[0013] In some embodiments of the present invention, the annular grooves on the plurality of preformed plates are arranged with a gradually decreasing arc in the opposite direction of the travel of the bracket.

[0014] In some embodiments of the present invention, the height of the side wall of the preformed plate is higher than the height of the forming plate when it is closed, and the forming plate has a clearance groove adapted to the preformed plate.

[0015] In some embodiments of the present invention, the preformed plate is disposed adjacent to the tugboat.

[0016] In some embodiments of the present invention, the bracket also has walking wheels.

[0017] In some embodiments of the present invention, the walking wheel is arranged on the inner side of the separation and combination arm and at both sides of the forming pressure plate. The wheel surface of the walking wheel is a quarter arc structure, and when the two separation and combination arms are closed, the two opposite cross-sections of the walking wheels form a semicircular structure hung on the overhead line.

[0018] In some embodiments of the present invention, a camera assembly is further provided on the top of the separation and combination arm, and the camera assembly is arranged toward the forming press plate, so as to allow a user to remotely observe the insulating tape coating image.

[0019] According to a second aspect of the present invention, there is also provided a method for wrapping a cable insulation layer wrapping molding mechanism, comprising the following steps:

[0020] Open the splitter arm to create space between the two opposing preformed plates for cables to enter and exit;

[0021] Unwind the insulating coil and pre-lay the unwinding insulating tape in the annular groove of the tugboat and the forming groove of the preformed plate;

[0022] Lift the whole cable until the overhead cable enters the pre-laid insulation tape and contacts the insulation tape;

[0023] The splitting and closing arms are closed, and the forming pressing plates on the two splitting and closing arms alternately squeeze the two free ends of the insulating tape in the width direction, so that the insulating tape covers the overhead line and partially overlaps at the free ends;

[0024] The insulating tape is moved integrally along the length of the overhead line so that the bonding areas of the insulating tape are connected, so that the insulating tape continuously wraps around the overhead line.

[0025] The beneficial effects of the present invention are as follows: the present invention pre-lays the insulating tape in the annular groove of the tugboat and the forming groove of the preformed plate by means of the tugboat and the preformed plate arranged on the bracket; after the overhead line enters into the insulating tape, the two forming pressing plates are closed by the separation and combination arms to squeeze the free ends of the insulating tape to form a stacked and staggered insulating tape wrapping structure, and the bonding area arranged on the insulating tape is used to achieve tight wrapping of the overhead line; compared with the prior art, the above-mentioned insulation layer wrapping method can not only improve the reliability of wrapping, but also achieve tight wrapping by bonding, thereby improving the continuity of wrapping and the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of a cable insulation layer wrapping and molding mechanism in an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the connection structure between the tug wheel and the preformed plate in the cable insulation layer wrapping and forming mechanism in an embodiment of the present invention;

[0029] Figure 3 In the embodiment of the present invention Figure 2 A local enlarged view of point B in FIG.

[0030] Figure 4 It is a schematic diagram of the connection structure between the bracket and the separation and combination arm in the cable insulation layer wrapping and molding mechanism in an embodiment of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure when the separation and combination arm is opened in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure when the split arm is closed in an embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the connection structure of the tugboat, the preformed pressing plate and the separation and combination arm in an embodiment of the present invention;

[0034] Figure 8 It is a flow chart of the steps of the coating method of the cable insulation layer coating molding mechanism in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] like Figures 1 to 7 The cable insulation layer wrapping forming mechanism shown in the figure comprises a bracket 1, a tugboat 11, a preformed plate 12 and a splitting and combining arm 13, wherein Figure 1 As shown in , in the embodiment of the present invention, the bracket 1 is formed by connecting steel plates or aluminum alloy plates, and its main body structure includes two parallel steel plates or aluminum alloy plates, which are fastened or welded to form the main body of the bracket 1;

[0039] Please continue to refer to Figure 3 In the embodiment of the present invention, a plurality of tugboats 11 are provided, which are rotatably connected to the bracket 1 in parallel and spaced apart, and are arranged along the same straight line direction. The tugboats 11 are provided with an annular groove 11a matching the outer diameter of the cable covered with the tape; the tugboats 11 are used to support the insulating tape 15, and also play the role of providing pressure to the insulating tape 15, thereby reducing the gap between the insulating tape 15 and the overhead line to be covered;

[0040] Please continue to refer to Figure 3In the embodiment of the present invention, a plurality of preformed plates 12 are also provided, and are arranged in the same arrangement direction as the tugboat 11, and a forming groove 12a is provided on the preformed plate 12; it should be noted here that in the embodiment of the present invention, the bottom of the forming groove 12a of the preformed plate 12 and the bottom of the annular groove 11a of the tugboat 11 are on the same plane, so that the tugboat 11 and the preformed plate 12 constitute a forming cavity of the insulating tape 15 for the entry of the insulating tape 15 and the overhead line;

[0041] like Figure 4 As shown in, in the embodiment of the present invention, the separation and combination arm 13 is symmetrically and rotatably arranged on the bracket 1. It should be pointed out here that in the embodiment of the present invention, the rotation connection of the two separation and combination arms 13 is realized by two parallel rotating shafts, and the two separation and combination arms 13 are connected by gear meshing at the length of the rotating shaft. When the angle rotation is performed specifically, it is realized by a worm gear fixed on the rotating shaft and a worm motor structure meshing with the worm gear; in addition, the specific driving form of the separation and combination arm 13 is not limited here, and those skilled in the art can also realize the opening and closing of the separation and combination arm 13 by directly driving the motor reducer; please continue to refer to Figure 4 In the embodiment of the present invention, the two separation arms 13 are provided with forming plates 14 facing each other, and the two forming plates 14 are configured to be staggered and closed above the forming groove 12a when the two separation arms 13 are closed; please refer to Figure 5 and Figure 6 When the split arm 13 is closed, the two forming press plates 14 are parallel and one is higher than the other. This arrangement can achieve the mutual staggering when the free ends of the insulating tape 15 are closed;

[0042] In the embodiment of the present invention, an insulating coil is also hung on the bracket 1 (not shown in the figure), and the insulating tape 15 of the unwound insulating coil is pre-laid in the annular groove 11a and the forming groove 12a. The insulating tape 15 has an adhesive area 15a on one side of its width. The insulating tape 15 is configured so that when the bracket 1 rises to the point where the overhead cable contacts the pre-laid insulating tape 15, the insulating tape 15 is stacked, closed and bonded together under the action of the forming pressing plate 14 of the two separation and combination arms 13, forming a tightly wrapped structure that fits the overhead line. Please refer to Figure 5 and Figure 6, is the change process of the insulating tape 15 when the insulating tape 15 and the overhead line enter the molding cavity. The insulating tape 15 is first clamped in the molding cavity, with free ends inclined upward on both sides, and then in the process of closing the molding press plates 14 on both sides, the two free ends of the insulating tape 15 are staggered and attached to the overhead line; in the embodiment of the present invention, due to the adhesive area 15a set on one side of the insulating tape 15, the adhesive area 15a here is the back glue set along the length direction of the insulating tape 15, and the bonding is achieved when the two sides of the insulating tape 15 overlap. Since it adopts the bonding form, after the molding press plates 14 are docked, the bonding area 15a of the insulating tape 15 is achieved when the staggered overlapping part is moved as a whole. This form can achieve bonding when the insulating tape 15 is in close contact with the overhead line, and there is no need to reserve a clamping space like the clamping form in the prior art, thereby ensuring the tightness of the package.

[0043] In the above embodiment, the insulating tape 15 is pre-laid in the annular groove 11a of the tugboat 11 and the forming groove 12a of the preformed plate 12 by means of the tugboat 11 and the preformed plate 12 arranged on the bracket 1. After the overhead line enters into the insulating tape 15, the two forming pressing plates 14 are closed by the separation and combination arm 13 to squeeze the free ends of the insulating tape 15 to form a stacked and staggered insulating tape 15 wrapping structure, and the bonding area 15a arranged on the insulating tape 15 is used to achieve tight wrapping of the overhead line. Compared with the prior art, the above insulation layer wrapping method can not only improve the reliability of wrapping, but also achieve tight wrapping by bonding, thereby improving the continuity of wrapping and the working efficiency.

[0044] On the basis of the above-mentioned embodiment, in order to further improve the reliability of the wrapping of the insulating tape 15, in the embodiment of the present invention, as shown in FIG3, the annular grooves 11a on the plurality of preformed plates 12 are arranged with a gradually reduced curvature in the opposite direction of the travel of the bracket 1. In this way, during the travel of the bracket 1, since the initial end of the insulating tape 15 is arranged on the preformed plate 12 with the smallest curvature, the curvature of the insulating tape 15 gradually decreases during the synchronous unwinding process, and finally forms a wrapping structure that closely fits the overhead line; through this gradual structural form, the continuity of the deformation of the insulating tape 15 and the reliability of the wrapping are improved.

[0045] In the embodiment of the present invention, Figure 5 As shown in , in order to further improve the deformation stability of the insulating tape 15, the side wall height of the preformed plate 12 is higher than the height of the forming plate 14 when it is closed, so that the two sides of the insulating tape 15 can be temporarily abutted against the two side extension positions of the forming groove 12a of the preformed plate 12 before covering, and as shown in Figure 7As shown in the figure, the forming plate 14 has a clearance groove 14a adapted to the preformed plate 12. In the embodiment of the present invention, the two sides of the forming groove 12a extend in a slightly outwardly inclined structure, so that when the clearance groove 14a of the forming plate 14 passes through the preformed plate 12, the insulating tape 15 can be closely attached to the overhead line by friction to avoid a large gap.

[0046] Please continue to refer to Figure 3 In the embodiment of the present invention, the preformed plate 12 is disposed adjacent to the tugboat 11. Adjacent here means that one side of the preformed plate 12 is the tugboat 11, and the other side of the tugboat 11 is the preformed plate 12. By such a sequentially adjacent form, the reliability of the forming cavity can be ensured, and the insulating tape 15 can be prevented from wrinkling and folding.

[0047] In the embodiment of the present invention, Figure 1 and Figure 4 As shown in , the bracket 1 is also provided with a running wheel 17. In order to achieve the synchronization of hanging the mechanism on the overhead line and wrapping the insulating tape 15, in the embodiment of the present invention, the running wheel 17 is arranged on the inner side of the separation and combination arm 13, and is arranged at the two side positions of the forming platen 14. The wheel surface of the running wheel 17 is a quarter arc structure, and when the two separation and combination arms 13 are closed, the two opposite cross-sections of the running wheel 17 constitute a semicircular structure hung on the overhead line. In this way, after the overhead line enters the molding cavity, only by closing the separation and combination arm 13, the simultaneous closure of the forming platen 14 and the running wheel 17 is achieved, thereby achieving the synchronization of hanging the line and wrapping, and improving the efficiency of the operation. In addition, in the embodiment of the present invention, in order to detect the success rate of wrapping, as Figure 4 As shown in FIG, a camera assembly 18 is also provided on the top of the separation and combination arm 13, and the camera assembly 18 is arranged toward the forming platen 14, so that the user can remotely observe the wrapped image of the insulating tape 15. The camera assembly 18 here can send the captured video or image to the manual operation end in the form of wireless transmission, and then the operator can determine the success of the online wrapping by observing the video or image.

[0048] Another aspect of the present invention is to provide a Figure 8 The coating method of the cable insulation layer wrapping molding mechanism shown in the figure is applied to the above-mentioned cable insulation layer wrapping mechanism. Since the specific operation steps are described in detail above, those skilled in the art can refer to the above for understanding, and will not be repeated here. Specifically, the following steps are included:

[0049] S10: Open the splitting and combining arms 13 to create space between the two opposing preformed plates 12 for cables to enter and exit;

[0050] S20: unwinding the insulating coil, and pre-laying the unwinding insulating tape 15 in the annular groove 11a of the tugboat 11 and the forming groove 12a of the preformed plate 12;

[0051] S30: hoisting the whole wire until the overhead wire enters into the pre-laid insulating tape 15 and contacts the insulating tape 15; the in-place detection here can be performed by setting a sensor across the bracket 1 on the bracket 1 to detect that the overhead wire enters into the molding cavity;

[0052] S40: closing the separation and combination arms 13, and the forming pressing plates 14 on the two separation and combination arms 13 alternately squeeze the two free ends of the insulating tape 15 in the width direction, so that the insulating tape 15 covers the overhead line and partially overlaps at the free ends;

[0053] S50: Move the entire tape 15 along the length of the overhead line so that the adhesive regions 15a of the insulating tape 15 are connected, so that the insulating tape 15 continuously wraps the overhead line.

[0054] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cable insulation layer wrapping molding mechanism, characterized in that: include: Bracket; A tugboat, wherein a plurality of tugboats are provided, which are rotatably connected to the bracket in parallel and at intervals, and are arranged along the same straight line direction, and an annular groove matching the outer diameter of the cable to be coated is provided on the tugboat; A preformed plate, wherein a plurality of the preformed plates are provided and arranged along the same arrangement direction as the tugboat, and the preformed plates are provided with forming grooves; Split-and-close arms are symmetrically and rotatably arranged on the bracket, and the two split-and-close arms are each provided with a forming press plate arranged toward each other, and the two forming press plates are configured to be staggered and closed above the forming groove when the two split-and-close arms are closed; Wherein, the bracket is also hung with an insulating coil, the insulating tape unwound from the insulating coil is pre-laid in the annular groove and the forming groove, the insulating tape has an adhesive area on one side of its width, and the insulating tape is configured so that when the bracket rises to the point where the overhead cable contacts the pre-laid insulating tape, the insulating tape is stacked, closed and bonded together under the action of the forming pressing plates of the two separation and combination arms to form a tightly wrapped structure that fits the overhead line; The forming grooves on the plurality of preformed plates are arranged with their arcs gradually decreasing in the opposite direction of the support; The height of the side wall of the preformed plate is higher than the height of the forming plate when it is closed, and the forming plate is provided with a clearance groove matched with the preformed plate.

2. The cable insulation layer wrapping and molding mechanism according to claim 1, characterized in that: The preformed plate is disposed adjacent to the tugboat.

3. The cable insulation layer wrapping and molding mechanism according to claim 1, characterized in that: The bracket is also provided with walking wheels.

4. The cable insulation layer wrapping and molding mechanism according to claim 3, characterized in that: The running wheel is arranged on the inner side of the separation and combination arm and on both sides of the forming pressure plate. The wheel surface of the running wheel is a quarter arc structure, and when the two separation and combination arms are closed, the two opposite running wheel cross-sections form a semicircular structure hung on the overhead line.

5. The cable insulation layer wrapping and molding mechanism according to claim 1, characterized in that: A camera assembly is also provided on the top of the separation and combination arm, and the camera assembly is arranged toward the forming pressing plate, so as to be used for a user to remotely observe the insulating tape covering image.

6. A method for coating a cable insulation layer wrapping molding mechanism according to any one of claims 1 to 5, characterized in that: The following steps are involved: Open the splitter arm to create space between the two opposing preformed plates for cables to enter and exit; Unwind the insulating coil and pre-lay the unwinding insulating tape in the annular groove of the tugboat and the forming groove of the preformed plate; Lift the whole cable until the overhead cable enters the pre-laid insulation tape and contacts the insulation tape; The splitting and closing arms are closed, and the forming pressing plates on the two splitting and closing arms alternately squeeze the two free ends of the insulating tape in the width direction, so that the insulating tape covers the overhead line and partially overlaps at the free ends; The insulating tape is moved integrally along the length of the overhead line so that the bonding areas of the insulating tape are connected, so that the insulating tape continuously wraps around the overhead line.

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