CN111446667B - Wire insulating layer fusing device suitable for different wire diameters - Google Patents
Wire insulating layer fusing device suitable for different wire diameters Download PDFInfo
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- CN111446667B CN111446667B CN202010243652.3A CN202010243652A CN111446667B CN 111446667 B CN111446667 B CN 111446667B CN 202010243652 A CN202010243652 A CN 202010243652A CN 111446667 B CN111446667 B CN 111446667B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1275—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by applying heat
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Abstract
The invention relates to the field of wire processing equipment, in particular to a wire insulating layer fusing device suitable for different wire diameters, which comprises a control unit, a wire stripping head and a connecting wire, wherein an upper hot stripping wire, an upper spring, an upper left fixing frame, an upper right fixing frame, a lower hot stripping wire, a lower spring, a lower left fixing frame and a lower right fixing frame are arranged on a clamping frame of the wire stripping head, two ends of the upper hot stripping wire are fixedly connected with the upper left fixing frame and the upper right fixing frame respectively, the middle part of the upper hot stripping wire is connected with the free end of the lower spring, two ends of the lower hot stripping wire are fixedly connected with the lower left fixing frame and the lower right fixing frame respectively, the middle part of the lower hot stripping wire is connected with the free end of the upper spring, and the upper hot stripping wire and. And the clamping frame is provided with a gravity sensing module for connecting or disconnecting the connecting lead. The device can carry out the thermal desorption processing to the wire insulating layer of different line footpaths, and the commonality is high, and can the ohmic heating when the wire stripping head is in specific angle, the simple operation.
Description
Technical Field
The invention relates to wire processing equipment, in particular to a wire insulating layer fusing device suitable for different wire diameters.
Background
The wire is an important carrier for transmitting electrical signals in electronic products, and the wire is usually wrapped with an insulating layer on its outer circumference for insulation and sealing and extending the life of the wire. In electrical connection of a wire, it is necessary to remove an insulating layer at an end of the wire, and a conventional method of removing the insulating layer is to peel off the insulating layer using a tool such as wire stripper, scissors, or the like, or to burn off the insulating layer using a fire.
The adoption of the wire stripping pliers method requires an operator to select the jaws with different calibers according to the thickness of a wire, for example, the technical schemes described in patents CN201048255Y and CN205452979U, because the jaws with different calibers are positioned on the same pliers body, the jaws with proper calibers need to be selected each time of wire stripping, which is time-consuming for a large number of repetitive operations of wire stripping, and if the jaws are selected by accident in the long-term operation process, two defects of wire stripping can be caused: 1. the caliber of the pliers is larger than the wire diameter, so that the insulating layer of the lead cannot be effectively contacted with the pliers opening, and the smooth wire stripping cannot be performed; 2. the caliber of the pliers is smaller than the wire diameter, so that the pliers mouth extrudes and cuts the wire core of the wire, the wire core of the wire is damaged, and the contact resistance is increased. In the technical solutions described in CN110544905A and CN208782220U, because a single jaw is adopted, the possibility of the two wire stripping defects is reduced, but the universality is low, and the jaw needs to be replaced when performing wire stripping operation on wires with different wire diameters, which reduces the working efficiency.
By adopting the technical scheme of scissors or cold wire stripper as described in patent CN2035539U, the insulation layer of the wire is not heated and melted in the wire stripping process, and the insulation layer is completely mechanically cut by the knife edge of the jaw, so that the wire stripping mode has strict requirements on the dimensions of the jaw and the wire, and if the jaw and the wire have slight deviation, the wire core of the wire can be damaged. It is known that the resistance of the wire is inversely proportional to the cross-sectional area of the wire, and the damage of the wire core of the wire increases the resistance of the wire and reduces the tensile strength of the wire, so that the method is difficult to implement in the electronic field with high precision and high reliability.
The burning temperature is uncontrollable, and the wire core is possibly oxidized by overhigh temperature, so that the resistance of the wire is increased, and on the other hand, the oxide layer also increases the difficulty of treating the wire, for example, the oxide layer is difficult to weld and the like, and the burned insulating layer has wrinkles and is inconvenient for post treatment, so the method is not feasible.
The utility model patent of the utility model with the publication number of grant CN204966944U provides a ware is shelled to heat, is the power supply of thermal resistance silk through power module, makes thermal resistance silk circular telegram afterheating, overlaps the thermal resistance silk outside the insulating layer, rotates the heat and shells the ware and fuses the insulating layer from the contact position, can pull out the wire from the fusing department. The utility model with the publication number of CN2696177Y provides a high-frequency heating wire stripper, which controls the temperature of the wire stripper through a linked switch. Among the above-mentioned two kinds of schemes, because the resistance wire heats with invariable electric current, make the resistance wire need the certain time to preheat before reaching operating temperature, and after the resistance wire reaches operating temperature, still heating, too high temperature can influence the life-span of resistance wire, also does not benefit to the operation of accurate melting wire insulating layer.
Disclosure of Invention
In order to solve the problems, the invention provides a fusing device of a wire insulating layer suitable for different wire diameters, which adopts the technical scheme that:
the utility model provides a wire insulating layer fusing device suitable for different line footpaths, includes the connecting wire of control unit, wire stripping head and setting between control unit and wire stripping head, the control unit is connected with the power, its special character lies in:
the wire stripping head comprises two V-shaped clamping parts, and the folding points of the two clamping parts are hinged to form an X-shaped clamping frame;
the clamping frame comprises an upper hot wire removing unit arranged at the upper jaw and a lower hot wire removing unit arranged at the lower jaw;
the upper hot wire removing unit comprises an upper hot wire removing, an upper spring, an upper left fixing frame and an upper right fixing frame;
the fixed end of the upper spring is positioned in the middle of the upper jaw, and the free end of the upper spring is downward;
the upper left fixing frame and the upper right fixing frame are respectively positioned at two ends of the upper jaw;
the lower hot wire releasing unit comprises a lower hot wire releasing, a lower spring, a lower left fixing frame and a lower right fixing frame;
the fixed end of the lower spring is positioned in the middle of the lower jaw, and the free end of the lower spring is opposite to the free end of the upper spring;
the lower left fixing frame and the lower right fixing frame are respectively positioned at two ends of the lower jaw;
two ends of the upper hot stripping wire are fixedly connected with the upper left fixing frame and the upper right fixing frame respectively, and the middle part of the upper hot stripping wire is connected with the free end of the lower spring;
two ends of the lower hot stripping wire are fixedly connected with the lower left fixing frame and the lower right fixing frame respectively, and the middle part of the lower hot stripping wire is connected with the free end of the upper spring;
the upper hot stripping wire and/or the lower hot stripping wire are/is electrically connected with the control unit through a connecting lead;
the clamping frame is provided with a gravity sensing module for connecting or disconnecting a connecting wire;
the gravity sensing module comprises an inductor shell, a first electrode rod, a second electrode rod and a conductive sliding block, wherein the first electrode rod, the second electrode rod and the conductive sliding block are arranged on the inductor shell;
the left end of the first electrode rod extends out of the left end of the inductor shell and is connected with the connecting lead, and the distance between the right end of the first electrode rod and the right end of the inductor shell is smaller than the length of the conductive sliding block;
the second electrode rod is arranged in parallel with the first electrode rod, the right end of the second electrode rod extends out of the right end of the inductor shell and is connected with the connecting lead, and the distance between the left end of the second electrode rod and the left end of the inductor shell is greater than the length of the conductive sliding block;
the conductive sliding block is provided with two electrode grooves which are respectively matched with the cross sections of the first electrode rod and the second electrode rod, the conductive sliding block can be sleeved on the first electrode rod and the second electrode rod through the two electrode grooves and can slide along the first electrode rod and the second electrode rod, and when the first electrode rod and the second electrode rod enter the electrode grooves simultaneously, the connecting wires are conducted.
Further, a posture adjusting groove is formed in the clamping frame;
the inductor shell is positioned in the posture adjusting groove, and the left end of the inductor shell is hinged with the side wall of the posture adjusting groove;
an installation beam is arranged above the attitude adjusting groove;
the mounting beam is provided with a threaded hole, and a posture adjusting screw is arranged in the threaded hole;
the posture adjusting screw penetrates through the threaded hole and then is in contact with the top of the right end of the inductor shell;
an attitude adjusting spring is arranged between the bottom of the right end of the inductor shell and the attitude adjusting groove;
the second electrode rod is connected with the connecting lead through a conductive plate.
Further, the control unit comprises a temperature acquisition module and a current limiting switching module;
the temperature acquisition module comprises thermistors R which are sequentially connectedyA temperature acquisition circuit;
the current-limiting switching module comprises a DSP processor, n relays and n-1 gating resistors R with different resistance valuesn-1，n≥2；
The thermistor RyThe clamping frame is arranged at a position close to the upper hot wire-stripping position or the lower hot wire-stripping position on the clamping frame;
the temperature acquisition circuit is based on the thermistor RyThe resistance value change of the resistance value is output to a DSP processor;
the DSP processor controls the n relays to be respectively switched on or switched off;
the output end of the relay is connected with a connecting wire or is connected with the connecting wire through a gating resistor Rn-1Connected with the connecting lead.
Further, the control unit also comprises a current acquisition module;
the current acquisition module comprises sampling resistors R which are connected in sequencexA current collection circuit;
the sampling resistor RxCollecting working current passing through the upper hot stripped wire or the lower hot stripped wire;
the current acquisition circuit is based on a sampling resistor RxAnd the collected working current outputs a signal to the DSP processor.
Furthermore, the upper left fixing frame, the upper right fixing frame, the lower left fixing frame and the lower right fixing frame respectively comprise a hollow vertebral canal with threads on the outer wall and a locking nut sleeved outside the small end of the hollow vertebral canal;
a plurality of longitudinal cuts are formed in the small end of the hollow vertebral canal, and the large end of the hollow vertebral canal is fixed on the clamping frame.
Further, the cross-sectional shapes of the upper hot stripped wire and the lower hot stripped wire are regular polygons;
the cross section shape of the through hole of the hollow vertebral canal is matched with the cross section shapes of the upper hot stripping wire and the lower hot stripping wire.
Furthermore, a handle of the clamping frame is provided with a self-elastic switch for controlling the connection or disconnection of the connecting lead;
the pressing end of the self-elastic switch is opposite to the other handle.
Furthermore, a limiting spring is arranged between the two handles of the clamping frame;
and two ends of the limiting spring are respectively fixedly connected with the two handles.
Furthermore, the upper hot stripping wire and the lower hot stripping wire are connected in series or in parallel and are electrically connected with the control unit through a connecting lead;
a gap is reserved between the upper hot stripping wire and the lower hot stripping wire.
Furthermore, two ends of the upper hot stripping wire or the lower hot stripping wire are electrically connected with the control unit through a connecting lead;
the upper hot stripping wire is in contact conduction with the lower hot stripping wire.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the wire insulating layer fusing device suitable for different wire diameters, the wire insulating layers with different wire diameters can be subjected to thermal release treatment through the special design of the jaw, and the wire insulating layer fusing device is high in universality, simple in structure and convenient to operate;
(2) according to the invention, the gravity sensing module is adopted, so that the wire stripping head can be electrified and heated when positioned at a specific angle, an electrified switch does not need to be repeatedly turned on or turned off by an operator, the working efficiency is improved, the situation of hot wire stripping and electrifying and heating when the operator is not used can be avoided, and the operation safety is ensured;
(3) according to the invention, the angle of the inductor shell is changed under the action of the attitude adjusting screw and the attitude adjusting spring, so that the sliding angle of the conductive sliding block is changed, and therefore, the specific angle of the wire stripping head for heating by electrifying can be adjusted, and the working habits and the ergonomics of different operators are met;
(4) according to the invention, the control unit can collect the temperature near the hot stripping wire through the temperature collection module and control the working current of the hot stripping wire through the current-limiting switching module, when the hot stripper is just started to work and the temperature near the hot stripping wire is lower, the control unit can automatically adjust to a high-current heating state, so that the hot stripping wire is quickly preheated, and the working efficiency is improved; in the working process, the control unit can adjust the working current according to the real-time temperature near the hot stripped wire, so that the temperature of the hot stripped wire is kept stable, the service life of the hot stripped wire is prolonged, and meanwhile, the energy consumption is effectively saved;
(5) the current-limiting switching module of the control unit can also control the on-off of a hot wire-off working loop according to the magnitude of the hot wire-off working current collected by the current collecting module, so that the damage caused by the overlarge hot wire-off working current is prevented;
(6) the fixing frame adopted in the invention has a simple structure, and is convenient for quickly detaching the heat exchange stripping wire; the regular polygon hot-release wires with different cross-sectional shapes can be suitable for leads with different specifications, for example, the regular triangle hot-release wires can be suitable for ICFV and RV leads, the square hot-release wires can be suitable for YGC, BWR and RVV leads, and the regular hexagon hot-release wires can be suitable for ATRF and AFP leads; the shape of the cross section of the through hole of the hollow vertebral canal of the fixing frame is matched with the shape of the cross section of the hot stripping wire, so that the clamping is tight and reliable;
(7) according to the invention, the handles of the clamping frame are provided with the self-elastic switches, so that when an operator holds the two handles of the clamping frame, the conduction of the connecting wires can be controlled, and the clamping frame is convenient and quick; the self-elastic switch is used on the basis of the gravity sensing module, and the hot wire can be electrified and heated only when an operator holds and keeps the two handles of the clamping frame at a specific angle, so that the operation safety is further improved;
(8) set up spacing spring between two handles of holding frame, when operating personnel unclamped the holding frame handle, two handles can be opened to certain distance by the automation, make from bullet formula switch disconnection circular telegram, keep silent simultaneously and loosen the wire, have replaced the manual work with two detached actions of handle, labour saving and time saving.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a fuse apparatus for insulating wire layers of different wire diameters according to the present invention;
FIG. 2 is a schematic structural diagram of a wire stripping head according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a fixing frame according to an embodiment of the present invention;
FIG. 4 is a schematic view of the hollow spinal canal structure of the fixation frame in an embodiment of the present invention;
FIG. 5 is a schematic view of an embodiment of the present invention illustrating an initial state of the jaws;
FIG. 6 is a schematic view of an embodiment of the present invention showing the jaws gripping a wire;
FIG. 7 is a schematic circuit diagram of a control unit according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a gravity sensing module according to an embodiment of the present invention;
FIG. 9 is a side view of a gravity sensing module in an embodiment of the present invention;
FIG. 10 is a schematic diagram of a conductive slider structure of a gravity sensing module according to an embodiment of the present invention;
FIG. 11 is a side view of a posture adjustment slot in an embodiment of the present invention;
in the figure, 1-control unit, 2-wire stripping head, 21-clamping frame, 211-upper hot stripping wire, 212-upper spring, 213-upper left fixing frame, 2131-hollow cone, 2132-locking nut, 2133-longitudinal notch, 2134-nut, 214-upper right fixing frame, 215-lower hot stripping wire, 216-lower spring, 217-lower left fixing frame, 218-lower right fixing frame, 22-gravity sensing module, 221-inductor shell, 222-first electrode rod, 223-second electrode rod, 224-conductive slide block, 225-electrode groove, 23-attitude adjusting groove, 231-mounting beam, 232-attitude adjusting screw, 233-attitude adjusting spring, 234-conductive plate, 24-self-elastic switch, 25-limit spring, 3-connecting the lead.
Detailed Description
The invention provides a fuse device for wire insulation layers with different wire diameters, which is described in detail in the following with reference to the accompanying drawings and specific embodiments.
The invention relates to a wire insulation layer fusing device suitable for different wire diameters, which comprises a control unit 1, a wire stripping head 2 and a connecting wire 3 arranged between the control unit 1 and the wire stripping head 2, wherein the control unit 1 is connected with a power supply, as shown in figure 1.
The wire stripping head 2 comprises two V-shaped clamping portions, the folding points of the two clamping portions are hinged to form an X-shaped clamping frame 21, one end of the clamping frame 21 is provided with two hand-held handles, the other end of the clamping frame 21 is provided with a jaw for performing thermal release treatment on a wire insulating layer, the two handles are held, and the jaw is enlarged.
The clamping frame 21 comprises an upper hot wire stripping unit arranged at the upper jaw and a lower hot wire stripping unit arranged at the lower jaw.
The upper hot wire-removing unit comprises an upper hot wire-removing 211, an upper spring 212, an upper left fixing frame 213 and an upper right fixing frame 214; the fixed end of the upper spring 212 is positioned in the middle of the upper jaw, and the free end of the upper spring faces downwards; the upper left fixing frame 213 and the upper right fixing frame 214 are respectively positioned at two ends of the upper jaw.
The lower hot wire releasing unit comprises a lower hot wire releasing 215, a lower spring 216, a lower left fixing frame 217 and a lower right fixing frame 218; the fixed end of the lower spring 216 is located in the middle of the lower jaw and the free end is opposite to the free end of the upper spring 212; the lower left fixing frame 217 and the lower right fixing frame 218 are respectively positioned at two ends of the lower jaw.
The upper left fixing frame 213, the upper right fixing frame 214, the lower left fixing frame 217, and the lower right fixing frame 218 are four components having the same structure and used for fixing the upper hot wire 211 and the lower hot wire 215, and there are many structural forms that can achieve the above purpose.
As shown in fig. 3 and 4, the fixing frame includes a hollow spinal tube 2131 with a thread on the outer wall and a locking nut 2132 sleeved on the small end of the hollow spinal tube 2131. The small end of the hollow spinal tube 2131 is provided with four longitudinal cuts 2133 to form a four-petal structure, and the large end of the hollow spinal tube is fixed by a nut 2134 through the clamping frame 21. The hot wire penetrates from the large end to the small end of the hollow vertebral canal 2131, the locking nut 2132 is screwed down, the four-petal structure is folded under the screwing effect of the locking nut 2132, and then the hot wire can be clamped and fixed.
According to the conducting wires with different specifications, the cross section of the thermal release wire is set to be a regular polygon, for example, the thermal release wire with a regular triangle cross section is suitable for ICFV and RV conducting wires, the thermal release wire with a square cross section is suitable for YGC, BWR and RVV conducting wires, and the thermal release wire with a regular hexagon cross section is suitable for ATRF and AFP conducting wires.
The cross-sectional shape of the through hole of the hollow spinal canal 2131 is adapted to the cross-sectional shape of the heat-shed thread, and the number of the longitudinal slits 2133 at the small end thereof is not limited to four, and different numbers of the longitudinal slits 2133 may be provided according to the cross-sectional shape of the through hole of the hollow spinal canal 2131.
Two ends of the upper hot stripping wire 211 are fixedly connected with an upper left fixing frame 213 and an upper right fixing frame 214 respectively, and the middle part of the upper hot stripping wire is connected with the free end of a lower spring 216; two ends of the lower hot wire 215 are respectively fixedly connected with a lower left fixing frame 217 and a lower right fixing frame 218, and the middle part of the lower hot wire is connected with the free end of the upper spring 212. The upper thermal release wire 211 and the lower thermal release wire 215 form a "diamond" closed area, i.e. a "diamond" effective area for thermal release treatment, when viewed from the direction of the jaw end of the holding frame 21.
The upper thermal release wire 211 and/or the lower thermal release wire 215 are electrically connected with the control unit 1 through the connecting lead 3, and specifically include three forms: the first one is that an upper hot stripping wire 211 and a lower hot stripping wire 215 are connected in series and are electrically connected with a control unit 1 through a connecting lead 3, and current flows through the two hot stripping wires in sequence to electrify and heat the hot stripping wires, so that a certain gap must be reserved between the two hot stripping wires to avoid short circuit in a diamond-shaped effective area; the second is that the upper hot stripping wire 211 and the lower hot stripping wire 215 are connected in parallel and are electrically connected with the control unit 1 through a connecting lead 3, current is shunted from one end of the upper hot stripping wire 211 connected in parallel with the lower hot stripping wire 215 and flows through the two hot stripping wires at the same time, so that the hot stripping wires are electrified and heated, a certain gap must be reserved between the two hot stripping wires, and the short circuit in a rhombic effective area is avoided; and the third is that only one thermal release wire is electrically connected with the control unit 1 through a connecting lead 3, current flows in from one end of the thermal release wire and flows out from the other end of the thermal release wire, and the other thermal release wire is in contact conduction with the thermal release wire, namely two thermal release wires are in contact at the intersection point, so that current passes through the rhombic effective area.
Before the wire stripping operation, the two handles of the clamping frame 21 are separated to a certain distance, at this time, the jaw is reduced, and the effective area of the diamond shape between the upper hot stripping wire 211 and the lower hot stripping wire 215 is enlarged, as shown in fig. 5. Then the lead to be processed passes through the diamond-shaped effective area, the two handles are closed, the jaw is expanded, the diamond-shaped effective area between the upper hot stripping wire 211 and the lower hot stripping wire 215 is reduced and is attached to the lead, the state of the hot stripping wire is shown in figure 6, and the hot stripping treatment can be carried out on the insulating layer of the lead by electrifying the hot stripping wires.
Considering the safety of the wire stripping head 2, the clamping frame 21 of the wire stripping head 2 is made of insulating materials, a connecting wire groove is arranged inside the clamping frame 21, and the connecting wire 3 penetrates from the tail part of one handle of the clamping frame 21 and is connected to the end part of the thermal release wire along the connecting wire groove.
The control unit 1 is mainly used for accessing a power supply and controlling the magnitude of working current of two hot wires and the on-off of a working loop, and the specific circuit structure of the control unit is shown in fig. 7 and comprises a transformer, an AC/DC module, a DSP power supply module, a temperature acquisition module, a current-limiting switching module and a current acquisition module.
The transformer is connected with a power supply through an external power line, transforms the commercial 220V alternating current into 25V alternating current and outputs the alternating current to the AC/DC module.
The AC/DC module converts the 25V alternating current output by the transformer into 25V direct current and outputs the 25V direct current, and the 25V direct current is output to the DSP power supply module on one hand and provides power for hot wire removal work on the other hand.
The DSP power supply module mainly comprises a 25V/5V conversion circuit and a 5V/3.3V conversion circuit, and finally converts the 25V direct current output by the AC/DC module into 3.3V direct current.
The temperature acquisition module comprises thermistors R which are connected in sequenceyAnd a temperature acquisition circuit.
The current-limiting switching module comprises a DSP processor, n relays and n-1 gating resistors R with different resistance valuesn-1And n is more than or equal to 2. The output end of the relay is connected with the connecting lead 3 or is connected with the connecting lead through a gating resistor Rn-1Is connected with a connecting wire 3, namely a GPIO1 pin of the DSP processor is connected with the relay 1, a post-stage gating-free resistor of the relay 1, a GPIO2 pin is connected with the relay 2, and a post-stage gating resistor R is connected with the relay 21Repeating the steps until the GPIon pin is connected with the relay n, and the post-stage of the relay n is connected with the selective resistor Rn-1。
Thermistor RyIs arranged on the clamping frame 21 at a position close to the upper hot wire 211 or the lower hot wire 215, and the temperature change of the hot wire can cause the thermistor RyThe resistance value changes, and the temperature acquisition circuit is based on the thermistor RyThe resistance value change outputs a signal to the DSP processor, and the DSP processor controls the n relays to be respectively switched on or switched off so as to control the magnitude of the hot wire stripping working current. To limit the thermistor RyWorking current of, to the thermistor RyA current limiting resistor R is connected in series.
When the hot stripper is just started to work, the temperature near the hot stripping wire is lower, at the moment, the DSP processor controls the GPIO1 pin to be set at a high level, and the rest GPIO pins are all set at a low level, so that the contacts a1 and a2 are conducted, the rest contacts are disconnected, at the moment, the hot stripping wire working current is maximum, and the hot stripping wire can be quickly preheated to the designated temperature. In the working process, the DSP processor can adjust the working current according to the real-time temperature near the hot stripped wire, so that the temperature of the hot stripped wire is kept stable.
The current acquisition module comprises sampling resistors R which are connected in sequencexAnd a current acquisition circuit.
Sampling resistor RxCollecting the working current passing through the upper hot wire 211 or the lower hot wire 215, and the current collecting circuit is based on the sampling resistor RxAnd the collected working current outputs a signal to the DSP processor. In order to prevent the service life of the hot stripped wire from being shortened due to overlarge working current of the hot stripped wire, when the working current of the hot stripped wire reaches a set maximum value, the DSP processor enables all GPIO pins to be set at a low level, so that a hot stripped wire working loop is disconnected, and the temperature of the hot stripped wire is gradually reduced until the hot stripped wire returns to normal.
The 3.3V direct current output by the DSP power supply module provides power for the DSP processor, the temperature acquisition circuit chip and the current acquisition circuit chip.
In order to ensure the convenience and safety of the operation, a gravity sensing module 22 for connecting and disconnecting the connection wire 3 is disposed on one side of the clamping frame 21, as shown in fig. 8 to 10, the gravity sensing module 22 includes an inductor housing 221, and a first electrode rod 222, a second electrode rod 223, and a conductive slider 224 disposed on the inductor housing 221.
The left end of the first electrode rod 222 extends out of the left end of the inductor shell 221 and is connected with the connecting lead 3, and the distance between the right end of the first electrode rod 222 and the right end of the inductor shell 221 is smaller than the length of the conductive sliding block 224; the second electrode rod 223 is arranged in parallel with the first electrode rod 222, the right end of the second electrode rod 223 extends out of the right end of the inductor shell 221 and is connected with the connecting lead 3, and the distance between the left end of the second electrode rod 223 and the left end of the inductor shell 221 is larger than the length of the conductive sliding block 224.
The conductive slider 224 is provided with two electrode grooves 225, the two electrode grooves 225 are respectively matched with the cross sections of the first electrode rod 222 and the second electrode rod 223, and the conductive slider 224 can be sleeved on the first electrode rod 222 and the second electrode rod 223 through the two electrode grooves 225 and can slide along the two electrode rods. When the first electrode rod 222 and the second electrode rod 223 simultaneously enter the electrode bath 225, the connecting wire 3 forms a passage.
When the wire stripping head 2 is at a certain angle, the conductive slider 224 slides along the first electrode rod 222 and away from the second electrode rod 223 under the action of gravity, and the connecting wire 3 is disconnected; the angle of the wire stripping head 2 is changed to enable the conductive sliding block 224 to slide along the first electrode rod 222 and gradually approach the second electrode rod 223, when the second electrode rod 223 enters the electrode groove 225, the connecting wire 3 is conducted, and the hot wire is electrified and heated.
The angle of the wire stripping head 2 affecting the sliding direction of the conductive slider 224 is related to the orientation of the first electrode rod 222 and the second electrode rod 223.
In order to adapt the operation mode of the gravity sensing module 22 to the working habits of different operators, the posture of the gravity sensing module can be adjusted.
As shown in fig. 11, a posture adjusting groove 23 is provided on the holding frame 21, and the sensor housing 221 is located in the posture adjusting groove 23, and its left end is hinged to a side wall of the posture adjusting groove 23.
An installation beam 231 is arranged above the attitude adjusting groove 23, a threaded hole is formed in the installation beam 231, an attitude adjusting screw 232 is arranged in the threaded hole, and the attitude adjusting screw 232 passes through the threaded hole and then contacts with the top of the right end of the inductor shell 221; an attitude adjusting spring 233 is provided between the bottom of the right end of the inductor housing 221 and the attitude adjusting groove 23.
The posture adjusting screw 232 is screwed to enable the inductor shell 221 to compress the posture adjusting spring 233, the left end of the inductor shell 221 rotates along the hinge point, and the right end of the inductor shell is close to the bottom of the posture adjusting groove 23; the posture adjusting screw 232 is unscrewed, the posture adjusting spring 233 jacks up the sensor housing 221, the left end of the sensor housing 221 rotates along the hinge point, and the right end approaches the upper part of the posture adjusting groove 23, so that the specific angle for connecting and disconnecting the connecting lead 3 is changed.
In order to prevent the movement of the inductor shell 221 from affecting the connection reliability of the two electrode rods and the connecting lead 3, the first electrode rod 222 is hinged with the connecting lead 3; the second electrode rod 223 is connected to the connecting wire 3 through the conductive plate 234, that is, the right end of the second electrode rod 223 is slidably connected to the left side of the conductive plate 234, and the right side of the conductive plate 234 is fixedly connected to the connecting wire 3.
Furthermore, the contact surface between the second electrode rod 223 and the conductive plate 234 is designed to be arc-shaped, so that the right end of the second electrode rod 223 can be always in good contact with the conductive plate 234 when moving up and down.
To further improve the safety of the operation, a self-eject switch 24 is provided on one handle of the holder 21 for controlling the connection of the connecting wire 3. The pressing end of the self-elastic switch 24 is opposite to the other handle, and when the two handles of the clamping frame 21 are held and inclined at a certain angle, the hot wire can be electrified and heated.
A limiting spring 25 is further arranged between the two handles of the clamping frame 21, and two ends of the limiting spring are fixedly connected with the two handles respectively. When the handles of the clamping frame 21 are loosened, the two handles can be automatically flicked to a certain distance, so that the self-flicking switch 24 is powered off, and meanwhile, the conducting wires are loosened by the jaw.
Claims (10)
1. The utility model provides a wire insulating layer fusing device suitable for different line footpaths, includes control unit (1), wire stripping head (2) and sets up connecting wire (3) between control unit (1) and wire stripping head (2), control unit (1) is connected with the power, its characterized in that:
the wire stripping head (2) comprises two V-shaped clamping parts, and the folding points of the two clamping parts are hinged to form an X-shaped clamping frame (21);
the clamping frame (21) comprises an upper hot wire-removing unit arranged at the upper jaw and a lower hot wire-removing unit arranged at the lower jaw;
the upper hot wire releasing unit comprises an upper hot wire releasing (211), an upper spring (212), an upper left fixing frame (213) and an upper right fixing frame (214);
the fixed end of the upper spring (212) is positioned in the middle of the upper jaw, and the free end of the upper spring is downward;
the upper left fixing frame (213) and the upper right fixing frame (214) are respectively positioned at two ends of the upper jaw;
the lower hot wire releasing unit comprises a lower hot wire releasing (215), a lower spring (216), a lower left fixing frame (217) and a lower right fixing frame (218);
the fixed end of the lower spring (216) is positioned in the middle of the lower jaw, and the free end of the lower spring is opposite to the free end of the upper spring (212);
the lower left fixing frame (217) and the lower right fixing frame (218) are respectively positioned at two ends of the lower jaw;
two ends of the upper hot stripping wire (211) are fixedly connected with an upper left fixing frame (213) and an upper right fixing frame (214) respectively, and the middle part of the upper hot stripping wire is connected with the free end of a lower spring (216);
two ends of the lower hot stripping wire (215) are fixedly connected with a lower left fixing frame (217) and a lower right fixing frame (218) respectively, and the middle part of the lower hot stripping wire is connected with the free end of the upper spring (212);
the upper hot wire (211) and/or the lower hot wire (215) are/is electrically connected with the control unit (1) through a connecting lead (3);
the clamping frame (21) is provided with a gravity sensing module (22) for connecting or disconnecting the connecting lead (3);
the gravity sensing module (22) comprises a sensor shell (221), and a first electrode rod (222), a second electrode rod (223) and a conductive sliding block (224) which are arranged on the sensor shell (221);
the left end of the first electrode rod (222) extends out of the left end of the inductor shell (221) and is connected with the connecting lead (3), and the distance between the right end of the first electrode rod (222) and the right end of the inductor shell (221) is smaller than the length of the conductive sliding block (224);
the second electrode rod (223) is arranged in parallel with the first electrode rod (222), the right end of the second electrode rod (223) extends out of the right end of the inductor shell (221) and is connected with the connecting lead (3), and the distance between the left end of the second electrode rod (223) and the left end of the inductor shell (221) is greater than the length of the conductive sliding block (224);
the electrode structure is characterized in that two electrode grooves (225) are formed in the conductive sliding block (224), the two electrode grooves (225) are respectively matched with the cross sections of the first electrode rod (222) and the second electrode rod (223), the conductive sliding block (224) can be sleeved on the first electrode rod (222) and the second electrode rod (223) through the two electrode grooves (225) and can slide along the first electrode rod (222) and the second electrode rod (223), and when the first electrode rod (222) and the second electrode rod (223) enter the electrode grooves (225) simultaneously, the connecting lead (3) is conducted.
2. The device of claim 1, wherein the fuse element comprises a fuse body and a plurality of fuse holes, and the fuse holes are arranged in the fuse body:
the clamping frame (21) is provided with a posture adjusting groove (23);
the sensor shell (221) is positioned in the posture adjusting groove (23), and the left end of the sensor shell (221) is hinged with the side wall of the posture adjusting groove (23);
a mounting beam (231) is arranged above the attitude adjusting groove (23);
a threaded hole is formed in the mounting beam (231), and a posture adjusting screw (232) is arranged in the threaded hole;
the posture adjusting screw (232) penetrates through the threaded hole and then is in contact with the top of the right end of the inductor shell (221);
an attitude adjusting spring (233) is arranged between the bottom of the right end of the inductor shell (221) and the attitude adjusting groove (23);
the second electrode rod (223) is connected to the connecting wire (3) via a conductive plate (234).
3. The device of claim 2, wherein the fuse element comprises a plurality of fuse elements, and each of the fuse elements comprises:
the control unit (1) comprises a temperature acquisition module and a current-limiting switching module;
the temperature acquisition module comprises thermistors R which are sequentially connectedyA temperature acquisition circuit;
the current-limiting switching module comprises a DSP processor, n relays and n-1 gating resistors R with different resistance valuesn-1，n≥2；
The thermistor RyThe device is arranged on the clamping frame (21) and is close to the position of the upper hot wire stripper (211) or the lower hot wire stripper (215);
the temperature acquisition circuit is based on the thermistor RyThe resistance value change of the resistance value is output to a DSP processor;
the DSP processor controls the n relays to be respectively switched on or switched off;
the above-mentionedThe output end of the relay is connected with the connecting lead (3) or passes through a gating resistor Rn-1Is connected with the connecting lead (3).
4. The device of claim 3, wherein the fuse element comprises a plurality of fuse elements, and each of the fuse elements comprises:
the control unit (1) further comprises a current acquisition module;
the current acquisition module comprises sampling resistors R which are connected in sequencexA current collection circuit;
the sampling resistor RxCollecting working current passing through an upper hot wire stripper (211) or a lower hot wire stripper (215);
the current acquisition circuit is based on a sampling resistor RxAnd the collected working current outputs a signal to the DSP processor.
5. The device for fusing insulation between wires of different wire diameters as claimed in any one of claims 1 to 4, wherein:
the upper left fixing frame (213), the upper right fixing frame (214), the lower left fixing frame (217) and the lower right fixing frame (218) respectively comprise a hollow spinal canal (2131) with threads on the outer wall and a locking nut (2132) sleeved outside the small end of the hollow spinal canal (2131);
the small end of the hollow vertebral canal (2131) is provided with a plurality of longitudinal cuts (2133), and the large end is fixed on the clamping frame (21).
6. The device of claim 5, wherein the fuse element comprises a plurality of fuse elements, and each of the fuse elements comprises:
the cross sections of the upper hot stripped wire (211) and the lower hot stripped wire (215) are in regular polygons;
the cross section shape of the through hole of the hollow vertebral canal (2131) is matched with the cross section shapes of the upper hot stripping wire (211) and the lower hot stripping wire (215).
7. The device of claim 6, wherein the fuse element comprises a plurality of fuse elements, and each of the fuse elements comprises:
a handle of the clamping frame (21) is provided with a self-elastic switch (24) for controlling the connection or disconnection of the connecting wire (3);
the pressing end of the self-elastic switch (24) is opposite to the other handle.
8. The device of claim 7, wherein the fuse element comprises a plurality of fuse elements, and each of the fuse elements comprises:
a limiting spring (25) is arranged between the two handles of the clamping frame (21);
and two ends of the limiting spring (25) are respectively fixedly connected with the two handles.
9. The device of claim 8, wherein the fuse element comprises a plurality of fuse elements, and each of the fuse elements comprises:
the upper hot wire (211) and the lower hot wire (215) are connected in series or in parallel and are electrically connected with the control unit (1) through a connecting wire (3);
a gap is reserved between the upper hot stripped wire (211) and the lower hot stripped wire (215).
10. The device of claim 8, wherein the fuse element comprises a plurality of fuse elements, and each of the fuse elements comprises:
two ends of the upper hot stripping wire (211) or the lower hot stripping wire (215) are electrically connected with the control unit (1) through a connecting wire (3);
the upper hot wire stripper (211) is in contact conduction with the lower hot wire stripper (215).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243652.3A CN111446667B (en) | 2020-03-31 | 2020-03-31 | Wire insulating layer fusing device suitable for different wire diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243652.3A CN111446667B (en) | 2020-03-31 | 2020-03-31 | Wire insulating layer fusing device suitable for different wire diameters |
Publications (2)
| Publication Number | Publication Date |
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| CN111446667A CN111446667A (en) | 2020-07-24 |
| CN111446667B true CN111446667B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010243652.3A Active CN111446667B (en) | 2020-03-31 | 2020-03-31 | Wire insulating layer fusing device suitable for different wire diameters |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2126671C3 (en) * | 1970-05-28 | 1974-04-04 | Pace Inc., Silver Spring, Md. (V.St.A.) | Electric heat generating handcraft pliers |
| US3700009A (en) * | 1970-12-22 | 1972-10-24 | Western Electric Co | Wire joining tool |
| FR2294567A1 (en) * | 1974-12-12 | 1976-07-09 | Sodico Electronic Sa | Insulation stripping appts. - pressure applied to heating elements incorporated in pair of jaws |
| FR2683957B1 (en) * | 1991-11-15 | 1994-05-27 | Aerospatiale | THERMAL STRIPPING PLIERS. |
| CN102694353B (en) * | 2012-05-31 | 2015-01-14 | 东莞市瀛通电线有限公司 | Thermal peeling machine |
| CN103085117B (en) * | 2013-02-05 | 2015-01-14 | 核工业理化工程研究院 | Electric heating cutting device |
| CN204967148U (en) * | 2015-08-05 | 2016-01-13 | 天津信诺特电子有限公司 | Safe high -efficient cable peeler |
| CN204966944U (en) * | 2015-08-12 | 2016-01-13 | 北京航天光华电子技术有限公司 | Ware is shelled to heat |
| CN205016827U (en) * | 2015-09-24 | 2016-02-03 | 中国航天科技集团公司烽火机械厂 | Wire stripper |
| CN206712353U (en) * | 2017-03-28 | 2017-12-05 | 凌顶世纪科技成都有限公司 | A kind of electric heating wire stripper for being easy to online temperature detection |
| US11316326B2 (en) * | 2018-05-03 | 2022-04-26 | Hakko Corp | Thermal cartridge device |
| CN208782220U (en) * | 2018-09-28 | 2019-04-23 | 极连电子科技(厦门)有限公司 | A kind of foot-operated wire stripper of temperature controllable |
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2020
- 2020-03-31 CN CN202010243652.3A patent/CN111446667B/en active Active
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