CN116718445B - A method for preparing dumbbell-shaped samples of cable outer sheath - Google Patents
A method for preparing dumbbell-shaped samples of cable outer sheathInfo
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- CN116718445B CN116718445B CN202310472254.2A CN202310472254A CN116718445B CN 116718445 B CN116718445 B CN 116718445B CN 202310472254 A CN202310472254 A CN 202310472254A CN 116718445 B CN116718445 B CN 116718445B
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- outer sheath
- cable outer
- dumbbell
- transverse
- cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Abstract
本发明涉及一种电缆外护套哑铃样制样方法，第一步，将剥下的电缆外护套展开；第二步、使展开状态的电缆外护套经过削刀而削掉一侧表面层；第三步、在削掉一侧表面层的处于展开状态的电缆外护套的表面层削除的一侧上成型同电缆外护套哑铃样形状匹配的哑铃形切口，哑铃形切口的深度为电缆外护套哑铃样的厚度以上；第四步、使具有哑铃形切口的处于展开状态的电缆外护套在此经过削刀而削下护套中间层，将护套中间层的位于哑铃形切口包围的部分取下，该取下部分即为电缆外护套哑铃样。本发明提供了一种先成型电缆外护套哑铃样后形成能够制作出电缆外护套哑铃样的电缆外护套哑铃样制样机，提供了电缆外护套哑铃样的一种新的制作方法。
This invention relates to a method for preparing a dumbbell-shaped cable outer sheath. The method involves: first, unfolding the stripped cable outer sheath; second, using a cutting tool to remove one side of the surface layer from the unfolded cable outer sheath; third, forming a dumbbell-shaped cut on the side of the unfolded cable outer sheath where one side of the surface layer has been removed, the cut being deeper than the thickness of the dumbbell-shaped cable outer sheath; and fourth, using the cutting tool again to remove the middle layer of the cable outer sheath from the unfolded state with the dumbbell-shaped cut, removing the portion of the middle layer surrounded by the dumbbell-shaped cut, which constitutes the dumbbell-shaped cable outer sheath. This invention provides a cable outer sheath dumbbell-shaped sample preparation machine that first forms the dumbbell-shaped cable outer sheath and then creates a new method for producing dumbbell-shaped cable outer sheath samples.
Description
Technical Field
The invention relates to the technical field of detection of electric power engineering materials, in particular to a dumbbell sample preparation method for an outer sheath of a cable.
Background
With the construction of cities and the transformation of power grids, more and more overhead lines are gradually replaced by power cables, so that a large number of cable laying, construction and fault first-aid repair are brought. The stable operation of the cable is closely related to the quality of the cable, and in order to ensure the quality of the laid cable, the cable needs to pass through a detection center to be detected to be qualified, and then the laying work can be carried out. In the cable detection, a dumbbell-shaped detection sample (hereinafter referred to as a cable outer sheath dumbbell 60) shown in fig. 2 needs to be manufactured, wherein the manufacturing process of the cable outer sheath dumbbell comprises the steps of stripping a section of cable outer sheath from a cable, then removing the inner surface and the outer surface of the cable outer sheath to leave an outer sheath middle layer with the thickness of about 2 mm, and then die-cutting the cable outer sheath dumbbell through a dumbbell-shaped forming die. The existing mode of cutting the inner surface layer and the outer surface layer of the cable outer sheath to form the outer sheath middle layer is formed by manually cutting for many times, and the defects of low efficiency, labor consumption, poor precision and poor surface flatness exist. With the construction of cities and the transformation of power grids, more and more overhead lines are gradually replaced by power cables, so that a large number of cable laying, construction and fault first-aid repair are brought. The stable operation sheath of the cable is closely related to the quality of the cable, and in order to ensure the quality of the laid cable, the cable needs to pass through a detection center to be detected to be qualified, and then the laying work can be carried out. In the cable detection, a dumbbell-shaped detection sample (hereinafter referred to as a cable outer sheath dumbbell 60) shown in fig. 2 needs to be manufactured, wherein the manufacturing process of the cable outer sheath dumbbell comprises the steps of stripping a section of cable outer sheath from a cable, then removing the inner surface and the outer surface of the cable outer sheath to leave an outer sheath middle layer with the thickness of about 2 mm, and then die-cutting the cable outer sheath dumbbell through a dumbbell-shaped forming die. The existing mode of cutting the inner surface layer and the outer surface layer of the cable outer sheath to form the outer sheath middle layer is formed by manually cutting for many times, and the defects of low efficiency, labor consumption, poor precision and poor surface flatness exist. The existing dumbbell sample for forming the cable outer sheath is formed by firstly forming a sheath middle layer and then cutting the dumbbell sample for forming the cable outer sheath.
Disclosure of Invention
The invention provides a cable outer sheath dumbbell sample making machine which can make a cable outer sheath dumbbell sample after forming the cable outer sheath dumbbell sample, and provides a novel making method of the cable outer sheath dumbbell sample.
The technical problem is solved by the following technical scheme, the dumbbell sample preparation method for the cable outer sheath is characterized by comprising the steps of firstly expanding a stripped cable outer sheath, secondly cutting one side surface layer of the cable outer sheath in an expanded state through a cutter, thirdly forming a dumbbell-shaped notch matched with the dumbbell sample shape of the cable outer sheath on the side of the surface layer of the cable outer sheath in an expanded state, which is cut off, wherein the depth of the dumbbell-shaped notch is more than the thickness of the dumbbell sample of the cable outer sheath, and fourthly cutting a middle layer of the cable outer sheath in an expanded state, which is provided with the dumbbell-shaped notch, through the cutter, and taking down the part, which is surrounded by the dumbbell-shaped notch, of the middle layer of the sheath, wherein the taking down part is the dumbbell sample of the cable outer sheath.
The dumbbell sample preparation machine comprises a frame, wherein a loading position, a cutter mounting position and a die cutting position are transversely and sequentially arranged on the frame, a cutter is mounted on the cutter mounting position, a dumbbell sample forming die is mounted on the die cutting position, and a cable outer sheath fixing mechanism, a transverse moving mechanism and a vertical moving mechanism are further arranged on the frame; the specific process for manufacturing the dumbbell-shaped cable outer sheath comprises the steps of spreading and fixing the stripped cable outer sheath on a cable outer sheath fixing mechanism, wherein the length direction of the cable outer sheath transversely extends, a cutter is driven by a vertical moving mechanism to descend to a required height, the cable outer sheath fixing mechanism is driven by the transverse moving mechanism to move towards a die cutting position, the cable outer sheath passes through the cutter to cut off one side surface layer, the cable outer sheath fixing mechanism is driven by the vertical moving mechanism to descend in a dumbbell-shaped forming die to cut a dumbbell-shaped incision on the cable outer sheath after reaching the die cutting position, the depth of the dumbbell-shaped incision is larger than the thickness of an outer sheath middle layer, the dumbbell-shaped forming die and the cutter are driven by the vertical moving mechanism to ascend to avoid, the cutter is driven by the transverse moving mechanism to drive the cable outer sheath fixing mechanism to conduct electricity feeding, the distance between the cutter and the upper surface of the cable outer sheath fixed on the cable outer sheath fixing mechanism is the thickness of the outer sheath middle layer, the cable outer sheath fixing mechanism is driven by the transverse moving mechanism again towards the die cutting position, the cable outer sheath passes through the middle layer to cut off the middle layer, the dumbbell-shaped incision is surrounded by the lower dumbbell-shaped incision, the taking-off part is the dumbbell-shaped outer sheath of the cable.
Preferably, the cutter comprises a cutter seat and a cutter blade detachably connected to the cutter seat, the cutter seat is connected with the vertical moving mechanism, the direction lines of all parts of the cutting edge of the cutter blade are positioned on a horizontal plane, a reversing guide slope is arranged between the upper end of the cutter seat and the cutter blade, and the reversing guide slope is used for guiding a cutting layer cut off from the cable outer sheath to be reversed to move along the direction of the cutter cutting the cable outer sheath. The dumbbell-shaped notch can be prevented from being formed on the cable outer sheath by the dumbbell-shaped forming die when the cut part of the cable outer sheath is in the die cutting position, so that the influence on the precision of the produced dumbbell-shaped of the cable outer sheath is avoided.
Preferably, the cutter holder is provided with a cutter mounting chute, one end of the cutter mounting chute, which faces the cutting edge of the cutter, is low, the other end of the cutter mounting chute is high, the widths of the cutter mounting chute are equal, the cutter is arranged in the cutter mounting chute in a penetrating manner, the surfaces of the two ends of the cutter in the thickness direction are planes, one side, far away from the reversing guide slope, of the part, exceeding the cutter mounting chute, of the cutter is provided with a cutter forming inclined plane, and the cutter forming inclined plane form the cutting edge of the cutter between the cutter and the surface of one side, facing the reversing guide slope, of the cutter. The device can be conveniently and reliably installed and fixed, and the cut part of the cable outer sheath can be reliably separated from the cable outer sheath to reach the reversing guide slope, so that the reversing reliability of the cut part of the cable outer sheath is passed.
Preferably, the cutter holder is detachably connected with a cutter fixing block which contacts the upper surface of the cutter blade in the thickness direction and presses the cutter blade.
Preferably, the cutter seat is provided with a cutter portion bolt through hole extending along the cutting direction of the cutter, the cutter fixing block is provided with a cutter portion threaded hole, and the cutter portion bolt passes through the cutter portion bolt through hole and then is in threaded connection with the cutter portion threaded hole to drive the cutter fixing block to move in a direction away from the cutting edge of the cutter blade, so that the cutter fixing block is pressed on the cutter blade. The cutting blade is convenient and reliable in fixing. The bolt moves transversely to generate vertical pressing force.
Preferably, the reversing guide slope is provided with a cutter part pit, and the cutter fixing block is positioned in the cutter part pit. The connection is reliable.
Preferably, the end surface of the end, far away from the cutter bolt, of the cutter pressing block is in smooth transition with the reversing guide slope, and the end surface of the end, far away from the cutter bolt, of the cutter pressing block is in smooth transition with the surface of the cutter. The reliability of the movable reversing of the cut part is good in practical use.
Preferably, the reversing guide slope is recessed in the cutter seat. The cut part can be prevented from moving back and forth, thereby passing through the reliability of commutation.
Preferably, the cable outer sheath fixing mechanism comprises a cable outer sheath supporting bottom plate and a transverse pressing bar which is connected to the cable outer sheath supporting bottom plate in a lifting mode through a lifting mechanism, a transverse sliding rail is arranged on the rack, the cable outer sheath supporting bottom plate is slidably connected to the transverse sliding rail, a transverse channel formed between the cutter and the two pressing bars is aligned, a transverse supporting raised line is arranged in the transverse channel, the upper surface of the transverse supporting raised line is an arc surface, and the central line of the arc surface extends transversely. When the cable outer sheath is used, the cable outer sheath is unfolded and then placed on the cable outer sheath supporting bottom plate, and then the cable outer sheath is pressed on two sides of the cable outer sheath through the transverse pressing strips to be fixed, the cable outer sheath is positioned on the cable outer sheath supporting bottom plate, and the length direction of the cable outer sheath is transverse. The outer surface of the sliding sleeve is downward placed on the transverse supporting convex strips, the cable outer sheath can be well packaged to be unfolded and tightly attached to the cable outer sheath supporting bottom plate, and the precision of the manufactured dumbbell-shaped cable outer sheath can be improved.
Preferably, the lower surface of the pressing bar is provided with a plurality of pressing teeth distributed along the transverse direction, and the pressing teeth extend along the longitudinal direction. The reliability of pressing and fixing can be improved, and loosening caused by force when the cable outer sheath is reset is prevented.
Preferably, the cable outer sheath pressing device further comprises a plurality of pressing rollers which are connected with the vertical moving mechanism and aligned with the channels and distributed along the transverse direction, wherein the pressing rollers are used for extending into the transverse channels to press the cable outer sheath on the cable outer sheath supporting bottom plate when the cable outer sheath supporting bottom plate is located right below the pressing rollers. When the cable outer sheath fixing mechanism is driven to move towards the paring knife, the cable outer sheath is pressed by the pressing roller, so that paring can be performed with more reliability and precision.
Preferably, the cutter comprises a cutter seat and a cutter blade detachably connected to the cutter seat, and a working space for mounting and dismounting the cutter blade is arranged between the pressing roller nearest to the cutter and the cutter blade. The installation and the disassembly of the cutting blade are convenient.
Preferably, the vertical moving mechanism is connected with a pressing wheel located in the working space through a vertical telescopic hanging cylinder, and the pressing wheel is used for pressing on the cable outer sheath when the cable outer sheath located on the cable outer sheath supporting bottom plate is shaved. The reliability of the cutting operation can be ensured (upward bulge is easy to occur without pressing, and the rear end of the cut-down part is even and has poor reliability).
Preferably, the pressing point of the pressing wheel on the cable sheath is spaced from the cutting edge of the cutting blade by less than 3 mm.
Preferably, the lifting mechanism comprises two transverse driving strips provided with driving inclined grooves below the cable outer sheath supporting bottom plate, a transverse screw rod rotationally connected to the cable outer sheath supporting bottom plate, a fixedly connecting mechanism part thread sleeve connected to the transverse screw rod in a threaded mode, two longitudinally extending driving heads penetrating through the driving inclined grooves in a one-to-one correspondence mode and a transverse screw rod driving motor for driving the transverse screw rod to rotate, the transverse screw rod driving motor and the fixing mechanism part thread sleeve are fixed with the cable outer sheath supporting bottom plate, two ends of the transverse driving strips are connected with two ends of the two transverse pressing strips in a one-to-one correspondence mode through a vertical connecting rod, and the vertical connecting rod penetrates through the cable outer sheath supporting bottom plate. The horizontal lifting of the rotation drive of the horizontal direction lead screw is realized, the structure is compact, and the lifting mechanism is all positioned below the cable outer sheath supporting bottom plate, so that interference with a cutter can be avoided.
Preferably, two sliding seats supported on the transverse sliding rails are arranged at the two transverse ends of the cable outer sheath supporting bottom plate, the transverse screw rod penetrates through the sliding seats, and the two transverse driving strips are located on two longitudinal sides of the transverse screw rod. The stability is good.
Preferably, the pressing strip is provided with a longitudinal through hole extending along the vertical through pressing strip, the vertical connecting rod is penetrated in the longitudinal through hole, the vertical connecting rod is connected with a pressing block positioned at the upper end of the longitudinal through hole and a jacking block positioned at the lower end of the longitudinal through hole, the cable outer sheath supporting bottom plate is provided with two supporting inclined planes which are longitudinally distributed on two sides of the transverse channel, the two transverse pressing strips are positioned right above the two supporting inclined planes in a one-to-one correspondence manner, and when the cable outer sheath is supported on the cable outer sheath supporting bottom plate, two side edges of the cable outer sheath are pressed on the two supporting inclined planes by the two pressing strips. When the cable outer sheath is clamped by the transverse pressing strip, the cable outer sheath can be driven to be longitudinally tensioned, so that the reliability of the cable outer sheath when the cable outer sheath is tightly attached to the cable outer sheath supporting bottom plate is passed.
Preferably, the transverse pressing bar is provided with a pressing inclined plane matched with the supporting inclined plane. The reliability when tensioning cable oversheath is good.
Preferably, the transverse moving mechanism comprises a driving synchronous pulley, a transverse moving motor, a driven synchronous pulley and a synchronous belt, wherein the driving synchronous pulley is rotatably connected to the frame, the transverse moving motor drives the driving synchronous pulley to rotate, the driven synchronous pulley is rotatably connected to the frame, the synchronous belt is fixed with the cable jacket fixing mechanism at two ends, the driving synchronous pulley and the driven synchronous pulley are transversely distributed at two ends of the frame, and the synchronous belt bypasses the driving pulley and the driven pulley to drive the driven synchronous pulley to rotate through rotation of the driving pulley.
Preferably, the vertical moving mechanism comprises a connecting frame, a vertical guide rod penetrating through the connecting frame, a moving mechanism part thread bush connected to the connecting frame, a vertical screw rod screwed on the moving mechanism part thread bush and a vertical screw rod driving motor for driving the vertical screw rod to rotate, the vertical guide rod is fixed with the frame, the vertical screw rod is rotationally connected with the frame, and the cutter and the dumbbell-shaped forming die are fixed on the connecting frame.
Preferably, the frame is provided with a shell, the dumbbell-shaped forming die, the cable outer sheath fixing mechanism, the transverse moving mechanism, the cutter and the vertical moving mechanism are all located in the shell, an upper discharging opening is formed in the front side of the shell, and a door plate for sealing the upper discharging opening is connected to the shell. The appearance is clean and good, and the safety is good.
Preferably, the door plate is connected with the shell through a reversing structure which can enable the door plate to be transferred to the upper part of the top wall of the shell from a state of being closed at the upper and lower feed openings to open the door. The planar space required for opening and closing the door can be reduced. When the height of the door is lower than the height of a person, the person does not need to retreat to avoid in the process of opening and closing the door, and convenience in opening the door is achieved.
Preferably, the reversing structure comprises two transmission frames connected to two transverse ends of the door plate, the transmission frames are located in the machine shell when the door plate is closed, the transmission frames comprise a first swing rod, a sliding block and a second swing rod, one end of the first swing rod is hinged with the machine shell through a first transverse shaft pin, the sliding block is connected to the other end of the first swing rod, the sliding block is connected with the sliding block in a sliding mode, one end of the second swing rod is hinged with the inner surface of the door plate through a second transverse shaft pin, the other end of the second swing rod is hinged to the middle of the machine shell through a third transverse shaft pin, the sliding rail of the door plate is connected to the inner surface of the door plate, the sliding block extends in the vertical direction when the door plate is closed, the sliding block can swing to the upper side of the machine shell through the first transverse shaft pin, when the door plate is closed, the sliding block is located at the upper end of the door plate, the connecting point of the second swing rod and the door plate is located at the lower end of the door plate, and when the door plate is opened, the door plate is shielded above the machine shell, and the connecting point of the sliding block and the second swing rod and the door plate are located at the front end of the door plate. When the door plate is used, the door plate can be closed by pulling the door plate downwards.
Preferably, the feeding and discharging port is provided with a limiting step, and the inner surface of the door plate is abutted to the limiting step when the door plate is closed. Can pass the reliability when closing the door.
Preferably, the upper end of the limiting step is provided with a backward inclined avoiding section. The horizontal space required for opening and closing the door can be further reduced.
Preferably, a handle is arranged on the outer surface of the door plate. When in use, the door is opened and closed manually by the force of the handle.
Preferably, the handle is located at the lower end of the door panel when the door panel is closed.
Preferably, a door opening and closing cylinder is arranged on one transmission frame, one end of the door opening and closing cylinder is hinged with the second swing rod through a fourth transverse shaft pin, and the other end of the door opening and closing cylinder is hinged with the frame through a fifth transverse shaft pin. The automatic door opening and closing can be realized through the door opening and closing cylinder.
Preferably, when the door panel is opened, the door opening and closing cylinder is in an extended state.
The invention has the advantages that the removed cable outer sheath can be quickly manufactured into a cable outer sheath dumbbell sample, the cable outer sheath can be sampled after being removed and sub-flat, the cable outer sheath dumbbell sample with the width can be manufactured when the diameter of the outer sheath is small, and the pressing force when the cable outer sheath is fixed can generate the force for tensioning the cable outer sheath, so that the cable outer sheath can more reliably maintain the leveling state, and the dimensional precision of a cut sample is high (the precision of the positive size of the rear end of the taken sample is poor if the cable outer sheath is lifted in the thickness direction during cutting).
Drawings
FIG. 1 is a schematic illustration of a dumbbell sample making machine for the cable jacket;
FIG. 2 is a schematic illustration of a dumbbell-like outer jacket of a cable;
FIG. 3 is an enlarged partial schematic view at A of FIG. 1;
FIG. 4 is a schematic illustration of a cable jacket dumbbell sample machine with the outer casing removed;
FIG. 5 is a schematic front view of a cable outer jacket dumbbell sample machine with the outer casing removed;
FIG. 6 is a schematic view of a view of the cable jacket securing mechanism;
FIG. 7 is a schematic view of another view of the cable jacket securing mechanism;
FIG. 8 is a schematic view of a cutting insert;
FIG. 9 is a schematic view of a cutting insert;
FIG. 10 is a schematic view of a cutting insert;
Fig. 11 is a schematic view of a cable jacket fixing mechanism in the second embodiment.
In the figure: the device comprises a frame 1, a shell 2, an upper feed opening 3, a lower feed opening 3, a door plate 4, a limiting step 5, an avoidance section 6, a handle 7, a transmission frame 8, a first transverse shaft pin 9, a first swing rod 10, a sliding block 11, a door plate part sliding rail 12, a second transverse shaft pin 13, a second swing rod 14, a third transverse shaft pin 15, a door opening and closing cylinder 69, a fourth transverse shaft pin 16, a fifth transverse shaft pin 17, a cutter 18, a dumbbell-shaped forming die 19, a cable outer sheath fixing mechanism 20, a transverse moving mechanism 21, a vertical moving mechanism 22, a connecting frame 23, a vertical guide rod 24, a moving mechanism part thread sleeve 25, a vertical screw 26, a vertical screw driving motor 27, a cutter seat 28, a cutter blade 29, a reversing guide slope 66, a blade installation chute 67, one end 30 of the blade installation chute facing the cutting edge of the cutter blade, a cutter blade forming slope 31, a cutter edge 32 of the cutter blade the cutter fixing block 33, the cutter portion bolt through hole 34, the cutter portion screw hole 35, the cutter portion pit 36, the cable outer sheath supporting bottom plate 37, the transverse pressing bar 38, the transverse slide rail 39, the slide seat 40, the transverse channel 41, the transverse supporting convex bar 42, the upper surface 43 of the transverse supporting convex bar, the pressing tooth 44, the pressing roller 45, the working space 46, the hanging cylinder 47, the pressing wheel 48, the driving chute 49, the transverse driving bar 50, the transverse screw rod 51, the fixing mechanism portion screw sleeve 52, the driving head 53, the transverse screw rod driving motor 54, the vertical connecting rod 55, the driving synchronous pulley 56, the transverse moving motor 57, the driven synchronous pulley 58, the synchronous belt 59, the cable outer sheath dumbbell 60, the strip through hole 61, the pressing block 62, the jacking block 68, the supporting inclined plane 63, the cable outer sheath 64, and the pressing inclined plane 65.
Detailed Description
The invention is further described below with reference to the drawings and examples.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 10, a dumbbell sample preparation method for a cable outer sheath comprises the steps of firstly expanding a stripped cable outer sheath, secondly cutting one side surface layer of the cable outer sheath in an expanded state by a cutter, thirdly forming a dumbbell-shaped incision matched with the dumbbell sample shape of the cable outer sheath on one side of the surface layer of the cable outer sheath in an expanded state, which is cut off one side surface layer, wherein the depth of the dumbbell-shaped incision is more than the thickness of the dumbbell sample of the cable outer sheath, and fourthly cutting a sheath middle layer of the cable outer sheath in an expanded state, which is provided with the dumbbell-shaped incision, by the cutter, and taking down the part, which is surrounded by the dumbbell-shaped incision, of the sheath middle layer, wherein the taken down part is the dumbbell sample of the cable outer sheath. The cable outer sheath dumbbell sample preparation machine is specifically realized by a cable outer sheath dumbbell sample preparation machine, and comprises a rack 1. The housing is provided with a casing 2. The front side of the shell is provided with an upper feed opening and a lower feed opening 3, and the shell is connected with a door plate 4 for closing the upper feed opening and the lower feed opening. The feeding and discharging hole is provided with a limiting step 5, and the inner surface of the door plate is abutted on the limiting step when the door plate is closed. The upper end of the limiting step is provided with a backward inclined avoiding section 6. The door plate is connected with the shell through a reversing structure which can enable the door plate to be transferred to the upper part of the top wall of the shell from a state of being closed at the upper and lower feed openings to open the door. The outer surface of the door plate is provided with a handle 7. When the door plate is closed, the handle is positioned at the lower end of the door plate. The reversing structure comprises two transmission frames 8 connected to two transverse ends of a door plate, the transmission frames are located in a machine shell when the door plate is closed, each transmission frame comprises a first swing rod 10, a sliding block 11 and a second swing rod 14, one end of each first swing rod is hinged to the machine shell through a first transverse shaft pin 9, the sliding block 11 is connected to the other end of each first swing rod, the door plate portion sliding rail 12 is connected with the sliding block in a sliding mode, one end of each second swing rod is hinged to the inner surface of the door plate through a second transverse shaft pin 13, the other end of each second swing rod is hinged to the middle portion of the machine shell through a third transverse shaft pin 15, the door plate portion sliding rail is connected to the inner surface of the door plate, the door plate portion sliding rail extends in the vertical direction when the door plate is closed, the sliding block can swing to the upper portion of the machine shell through the first transverse shaft pin, when the door plate is closed, the sliding block is located at the upper end of the door plate, the connecting point of the second swing rod and the door plate is located at the lower end of the door plate, and when the door plate is opened, the door plate is shielded above the machine shell, the connecting point of the sliding block and the second swing rod and the door plate is located at the front end of the door plate. The door slide rail can only slide on the sliding block and cannot fall off (namely, the door slide rail and the sliding block are kept connected together in the sliding process). The transmission frame at the left end is provided with a door opening and closing cylinder 69, one end of the door opening and closing cylinder is hinged with the second swing rod through a fourth transverse shaft pin 16, and the other end of the door opening and closing cylinder is hinged with the frame through a fifth transverse shaft pin 17. When the door plate is opened, the door opening and closing cylinder is in an extension state.
The shell is internally provided with a loading position, a cutter mounting position and a die cutting position which are transversely and sequentially arranged. The cutter mounting position is provided with a cutter 18, and the die cutting position is provided with a dumbbell-shaped forming die 19. The frame is also provided with a cable outer sheath fixing mechanism 20, a transverse moving mechanism 21 and a vertical moving mechanism 22. The dumbbell-shaped forming die, the cable outer sheath fixing mechanism, the transverse moving mechanism, the cutter and the vertical moving mechanism are all located in the shell. The dumbbell-shaped forming die is used for being folded towards the dumbbell-shaped forming die under the driving of the vertical moving mechanism when the cable outer sheath fixing mechanism is located at the die cutting position, and die-cutting a dumbbell-shaped outer sheath of the cable still connected to the cable outer sheath (namely, cutting a dumbbell-shaped notch forming a contour line of the outer sheath of the cable) on the cable outer sheath.
The vertical moving mechanism comprises a connecting frame 23, four vertical guide rods 24 penetrating through the connecting frame, a moving mechanism part threaded sleeve 25 connected to the connecting frame, a vertical screw rod 26 in threaded connection with the moving mechanism part threaded sleeve and a vertical screw rod driving motor 27 for driving the vertical screw rod to rotate. Vertical screw rod driving motor drives vertical screw rod to rotate through belt pulley cooperation belt. The upper end and the lower end of the vertical guide rod are fixed together with the frame, the vertical screw rod is rotationally connected with the frame, the dumbbell-shaped forming dies are two, and the two dumbbell-shaped forming dies are distributed transversely and fixed on the connecting frame.
The cutting blade comprises a cutting blade seat 28 and a cutting blade 29 which is detachably connected to the cutting blade seat, the cutting blade seat is connected with the connecting frame, the direction lines of all parts of the cutting edge of the cutting blade are positioned on a horizontal plane, and the cutting edge of the cutting blade is of a linear structure. The cutting edge of the cutting blade faces to the right, a reversing guide slope 66 is arranged between the upper end of the cutting blade seat and the cutting blade, and the reversing guide slope is used for guiding a cutting layer cut from the cable outer sheath to be reversed to move along the direction of cutting the cable outer sheath (namely, the reversing is consistent with the direction of the cutting edge). The cutter seat is provided with a blade mounting chute 67, one end 30 of the blade mounting chute, which faces the cutting edge of the cutter blade, is low, the other end is high, the width of each part of the blade mounting chute is equal, the cutter blade is arranged in the blade mounting chute in a penetrating manner, the surfaces (namely the upper side surface and the lower side surface) of the two ends of the thickness direction of the cutter blade are planes, one side, far away from the reversing guide slope, of the part of the cutter blade, exceeding the blade mounting chute is provided with a blade forming inclined surface 31, and the blade forming inclined surface and the surface of one side, facing the reversing guide slope, of the cutter blade form a cutting edge 32 of the cutter blade. The holder is detachably connected with a cutter fixing block 33 which contacts the upper surface of the cutter blade in the thickness direction and presses against the cutter blade. The cutter seat is provided with a cutter part bolt through hole 34 extending along the cutting direction of the cutter, the cutter fixing block is provided with a cutter part threaded hole 35, and the cutter part bolt is in threaded connection with the cutter part threaded hole after passing through the cutter part bolt through hole to drive the cutter fixing block to move towards the direction far away from the cutting edge of the cutter blade so as to press the cutter fixing block on the cutter blade. The reversing guide slope is provided with a cutter part pit 36, and the cutter fixing block is positioned in the cutter part pit. The end face of the cutter part pressing block, which is far away from one end of the cutter part bolt, is in smooth transition with the reversing guide slope, and the end face of the cutter part pressing block, which is far away from one end of the cutter part bolt, is in smooth transition with the surface of the cutter blade. The reversing guide slope is recessed in the cutter seat.
The cable outer sheath fixing mechanism comprises a cable outer sheath supporting bottom plate 37 and two transverse pressing strips 38 which are connected to the cable outer sheath supporting bottom plate in a lifting mode through a lifting mechanism, transverse sliding rails 39 are arranged on the rack, and two transverse (namely left and right) ends of the cable outer sheath supporting bottom plate are respectively provided with a sliding seat 40 which is in sliding connection with the transverse sliding rails.
The cutter is aligned with a transverse channel 41 formed between the two pressing bars. A transverse supporting raised strip 42 is arranged in the transverse channel, the upper surface 43 of the transverse supporting raised strip is a cambered surface, and the central line of the cambered surface extends along the transverse direction. The lower surface of the pressing bar is provided with a plurality of pressing teeth 44 which are distributed along the transverse direction and extend along the longitudinal direction. The cable outer sheath pressing device further comprises a plurality of pressing rollers 45 which are connected to the connecting frame and aligned with the transverse channels and distributed along the transverse direction, wherein the pressing rollers are used for extending into the transverse channels to press the cable outer sheath on the cable outer sheath supporting bottom plate when the cable outer sheath supporting bottom plate is located right below the pressing rollers. A working space 46 for mounting and dismounting the cutting blade is provided between the pressing roller nearest to the cutter and the cutter. The vertical moving mechanism is connected with a pressing wheel 48 positioned in the working space through a vertical telescopic hanging air cylinder 47, and the pressing wheel is used for pressing on the cable outer sheath when the cable outer sheath positioned on the cable outer sheath supporting bottom plate is shaved. The distance between the pressing part of the pressing wheel pressed on the cable sheath and the cutting edge of the cutting blade is below 3 mm. The lifting mechanism comprises two transverse driving strips 50 provided with driving inclined grooves 49 and positioned below the cable outer sheath supporting bottom plate, a transverse screw rod 51 rotatably connected to the cable outer sheath supporting bottom plate, a screw sleeve 52 of a fixedly connecting mechanism part in threaded connection with the transverse screw rod, two longitudinally extending driving heads 53 which are connected to the screw sleeve of the fixing mechanism part and penetrate through the driving inclined grooves on the two transverse driving strips in a one-to-one correspondence manner, and a transverse screw rod driving motor 54 for driving the transverse screw rod to rotate. Transverse screw rod driving motor drives transverse screw rod through belt matching belt pulley. The transverse screw rod driving motor and the screw sleeve of the fixing mechanism part are fixed together with the cable outer sheath supporting bottom plate. Two ends of the two transverse driving strips are connected with two ends of the two transverse pressing strips in a one-to-one correspondence manner through a vertical connecting rod 55, and the vertical connecting rod is arranged on the cable outer sheath supporting bottom plate in a penetrating mode. The transverse screw rod passes through the sliding seat, and the two transverse driving strips are positioned on two longitudinal sides of the transverse screw rod.
The transverse moving mechanism comprises a driving synchronous pulley 56, a transverse moving motor 57, a driven synchronous pulley 58 and a synchronous belt 59, wherein the driving synchronous pulley 56 is connected to the rack in a rotating mode, the transverse moving motor 57 drives the driving synchronous pulley to rotate, the driven synchronous pulley 58 is connected to the rack in a rotating mode, the two ends of the synchronous belt are fixed with the cable outer sheath fixing mechanism, the driving synchronous pulley and the driven synchronous pulley are distributed at the two ends of the rack in the transverse mode, and the synchronous belt bypasses the driving pulley and the driven pulley to drive the driven synchronous pulley to rotate through rotation of the driving pulley.
The process for manufacturing the dumbbell with the cable outer sheath comprises the steps of spreading and fixing the stripped cable outer sheath on a cable outer sheath fixing mechanism, driving a cutter to descend to a required height through a vertical moving mechanism, driving the cable outer sheath fixing mechanism to move towards a die cutting position through a transverse moving mechanism, removing one side surface layer of the cable outer sheath through the cutter in the moving process, driving the cable outer sheath fixing mechanism to descend in a dumbbell-shaped forming die to cut a dumbbell-shaped notch on the cable outer sheath after reaching the die cutting position, enabling the depth of the dumbbell-shaped notch to be larger than the thickness of an outer sheath middle layer, driving the dumbbell-shaped forming die and the cutter to ascend to avoid, driving the cable outer sheath fixing mechanism to reach an upper material level through a vertical moving mechanism, enabling the cutter cutting edge to be lower than the thickness of the upper surface of the cable outer sheath fixed on the cable outer sheath fixing mechanism, driving the cable outer sheath fixing mechanism to move towards the die cutting position again through the transverse moving mechanism, removing the cable outer sheath through the cutter in the moving process, removing the dumbbell-shaped notch through the cutter, and taking down two dumbbell-shaped outer sheaths 60 on the cable outer sheath.
The process of fixing the cable outer sheath on the cable outer sheath fixing mechanism comprises the steps that the cable outer sheath is placed on a cable outer sheath supporting bottom plate after being unfolded and is clung to cover the supporting convex strips, the length direction of the cable outer sheath extends transversely, the inner surface of the cable outer sheath faces (namely faces to the supporting convex strips), then the cable outer sheath is pressed on two sides of the cable outer sheath through transverse pressing strips, and the transverse pressing strips are driven to move downwards through the lifting mechanism to fix the cable outer sheath. The lifting process of the lifting mechanism is that the transverse screw rod driving motor drives the transverse screw rod to rotate, the transverse screw rod drives the transverse screw sleeve to transversely move, the driving head is driven to synchronously transversely move when the transverse screw sleeve transversely moves, the driving head is matched with the driving chute to drive the transverse driving strip to lift, and the transverse pressing strip is driven to lift by the vertical connecting rod when the transverse driving strip lifts.
Embodiment two differs from embodiment one in that:
Referring to fig. 11, a long bar through hole 61 extending vertically through the pressing bar is provided on the pressing bar, the upper end of the vertical connecting bar is inserted in the long bar through hole, the vertical connecting bar is connected with a pressing block 62 located at the upper end of the long bar through hole and a lifting block 68 located at the lower end of the long bar through hole (the lifting block lifts the transverse pressing bar when lifting, the pressing block presses down the transverse pressing bar when descending), the cable outer sheath supporting base plate is provided with two supporting inclined planes 63 distributed on two sides of the transverse channel along the longitudinal direction, the two transverse pressing bars are located right above the two supporting inclined planes in a one-to-one correspondence manner, and when the cable outer sheath 64 is supported on the cable outer sheath supporting base plate, two side edges of the cable outer sheath are pressed on the two supporting inclined planes by the two pressing bars. The transverse pressing bar is provided with a pressing bevel 65 cooperating with said supporting bevel.
According to the technical scheme, when the transverse pressing strip is pressed to the outer sheath, the force for pulling the outer sheath longitudinally is generated, so that the cable outer sheath is more reliably and sufficiently tensioned, and the dumbbell-shaped precision of the cable outer sheath is achieved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element, a directional orientation is merely an orientation of relative relationships.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
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| CN109632430A (en) * | 2019-01-31 | 2019-04-16 | 宁波送变电建设有限公司 | A kind of cable insulation dumbbell specimen sample making apparatus |
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| CN106079208A (en) * | 2016-07-13 | 2016-11-09 | 浙江华电器材检测研究所 | Cable insulation material quickly produces dumbbell device |
| CN110053096B (en) * | 2019-03-21 | 2020-10-02 | 杭州爱锐科技有限公司 | Cable outer skin cutting and sample preparing equipment |
| CN111257082B (en) * | 2020-03-06 | 2023-04-07 | 上海思创电器设备有限公司 | Automatic sample preparation equipment for cable sheath |
| CN212363684U (en) * | 2020-06-04 | 2021-01-15 | 江西省铜及铜产品质量监督检验中心 | Wire and cable insulating layer dumbbell sample sampling device |
| CN212988968U (en) * | 2020-08-06 | 2021-04-16 | 国网山东省电力公司莱芜供电公司 | A kind of cable detection dumbbell test piece sample making device |
| CN112432804B (en) * | 2020-11-12 | 2023-02-28 | 湖南华菱线缆股份有限公司 | Automatic forming system for cable test sample |
| CN113567210B (en) * | 2021-07-27 | 2024-05-14 | 广东电网有限责任公司 | Cable dumbbell sample preparation facilities |
| CN215697619U (en) * | 2021-09-23 | 2022-02-01 | 江西省铜及铜产品质量监督检验中心 | Wire cutting device for wires and cables |
| CN115184104A (en) * | 2022-06-21 | 2022-10-14 | 国网山东省电力公司淄博供电公司 | Cable full-size standard sheet sampling machine |
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| CN109632430A (en) * | 2019-01-31 | 2019-04-16 | 宁波送变电建设有限公司 | A kind of cable insulation dumbbell specimen sample making apparatus |
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