A copper enameled wire stranding device

Abstract

The present invention relates to the technical field of wire stranding equipment, and discloses a copper enameled wire stranding device, including a casing, a wire stranding plate for stranding wires is arranged inside the casing, a wire scraping mechanism for scraping off the insulating layer of the enameled wires is arranged inside the casing, a motor for driving the wire stranding plate to rotate is arranged inside the casing, the wire scraping mechanism includes an upper scraper and a lower scraper, a vertical plate is arranged inside the casing, the upper scraper and the lower scraper are slidably mounted on the vertical plate, the lower scraper is connected to the motor transmission, the upper scraper and the lower scraper move synchronously, a tension spring is arranged on the side of the vertical plate, and the upper scraper and the lower scraper move in the opposite direction after scraping off the insulating layer on the surface of the enameled wire. Under the rapid pulling of the upper scraper and the lower scraper, the enameled wire shakes off the insulating layer debris on the surface of the enameled wire, preventing the debris from being twisted into the enameled wire head during subsequent stranding, and preventing the enameled wire head from heating due to poor contact, thereby improving the reliability and safety of the enameled wire head after stranding.

Description

Technical Field

[0001] The invention relates to the technical field of wire stranding equipment, in particular to a copper enameled wire stranding device. Background Art

[0002] Copper enameled wire is often used to make electromagnetic coils, which are key components for generating electromagnetic force. For example, this type of enameled wire coil is needed in the clutch of automobile air conditioners. When current passes through the electromagnetic coil, a magnetic field is generated around the coil to attract or release the drive plate to achieve the engagement and disengagement of the clutch. In addition, in the process of making the clutch, in order to increase the electromagnetic force generated by the enameled wire coil, it is usually necessary to connect multiple copper enameled wire coils in parallel. The process of connecting coils in parallel is the process of fixing the wire ends of the coils together through a twisting process. Since the surface of the copper enameled wire has an insulating layer, when the enameled wire is twisted, the insulating layer on the surface of the copper enameled wire needs to be scraped out first, and then twisted.

[0003] The existing copper enameled wire twisting device scrapes off the insulating layer on the surface of the enameled wire with a scraper and then directly performs the twisting process. However, part of the insulating layer will still adhere to the surface of the enameled wire after being scraped off. Therefore, some insulating layer debris will be twisted into the enameled wire during twisting, resulting in poor contact of the enameled wire ends, causing heating of the wire ends during subsequent use, which poses a certain safety risk. Therefore, it does not meet the existing needs. In this regard, we propose a copper enameled wire twisting device. Summary of the invention

[0004] The present invention provides a copper enameled wire twisting device, which has the function of shaking the enameled wire after the insulating layer on the surface of the enameled wire is scraped off, so as to shake off the insulating layer debris on the surface of the enameled wire and prevent the insulating layer debris from being twisted into the enameled wire, thereby preventing the enameled wire ends from having poor contact, preventing the risk of the wire ends heating up, and improving the beneficial effect of safety. It solves the problem that the existing copper enameled wire twisting device mentioned in the above background technology directly performs the twisting process after the insulating layer on the surface of the enameled wire is scraped off with a scraper, but part of the insulating layer will still adhere to the surface of the enameled wire after being scraped off. Therefore, some insulating layer debris will be twisted into the enameled wire during the twisting, resulting in poor contact of the enameled wire ends, causing the wire ends to heat up during subsequent use, and posing certain safety risks.

[0005] The present invention provides the following technical solution: a copper enameled wire stranding device, comprising a housing, a stranding plate for stranding wires arranged inside the housing, a scraping mechanism for scraping off the insulating layer of the enameled wires arranged inside the housing, a motor for driving the stranding plate to rotate arranged inside the housing, the scraping mechanism comprising an upper scraper and a lower scraper, a vertical plate arranged inside the housing, the upper scraper and the lower scraper slidably mounted on the vertical plate, the lower scraper is transmission-connected to the motor, and the upper scraper and the lower scraper move synchronously;

[0006] A wire shaking mechanism is provided on the vertical plate. The wire shaking mechanism includes a first tension spring provided on the side of the vertical plate. After the upper scraping plate and the lower scraping plate scrape the insulating layer on the surface of the enameled wire, they move in opposite directions, and the first tension spring stores energy;

[0007] Under the action of the first tension spring, the upper scraping plate and the lower scraping plate quickly move away from the wire twisting plate, and at the same time shake off the insulating layer debris on the surface of the enameled wire.

[0008] As an alternative embodiment of the copper enameled wire twisting device of the present invention, wherein: lower flat plates are installed at both ends of the lower scraping plate, upper flat plates are installed at both ends of the upper scraping plate, positioning rods are installed on the lower flat plates, the upper flat plates are slidably sleeved on the positioning rods, and a second tension spring is connected between the lower flat plates and the upper flat plates, and the second tension spring is sleeved on the positioning rods;

[0009] An upper cross bar is installed on one side of the upper flat plate, a lower cross bar is installed on the side of the lower flat plate away from the lower scraping plate, a guiding groove is formed on the vertical plate, and the upper cross bar and the lower cross bar are slidably installed in the guiding groove;

[0010] An aggregate box for collecting the enameled wire sheath is provided on the side of the vertical plate, and the aggregate box is located directly below the enameled wire.

[0011] As an alternative embodiment of the copper enameled wire twisting device of the present invention, wherein: the guiding groove includes a first horizontal through groove, an inclined through groove and a second horizontal through groove, and the first horizontal through groove, the inclined through groove and the second horizontal through groove are communicated in sequence;

[0012] When the upper cross bar and the lower cross bar respectively slide from the first horizontal through groove into the inclined through groove, the upper scraping plate and the lower scraping plate clamp the enameled wire together.

[0013] As an alternative embodiment of the copper enameled wire twisting device of the present invention, wherein: a first sliding groove is provided inside the machine shell, a first sliding block is slidably installed on the first sliding groove, a pull rod is installed on the first sliding block, a pull plate is provided on the lower scraping plate, and the pull rod is slidably inserted into the pull plate;

[0014] A driving gear is installed on the output shaft of the motor, a support plate is provided inside the machine shell, a pair of transmission rods are rotatably installed on the support plate, a first transmission gear and a second transmission gear are respectively installed at one ends of the pair of transmission rods, and the first transmission gear and the second transmission gear are respectively meshed with the driving gear;

[0015] A rack is installed on the side of the first slider, and the rack is set as a double-tooth rack. The other end of the transmission rod connected to the first transmission gear is installed with a forward gear, and the other end of the transmission rod connected to the second transmission gear is installed with a reset gear, and the forward gear and the reset gear are respectively meshed with the rack;

[0016] The forward gear and the reset gear are both configured as incomplete gears.

[0017] As an optional scheme for a copper enameled wire stranding device described in the present invention, the wire shaking mechanism further includes a No. 2 slide groove arranged on the side of the vertical plate, a No. 2 slider is slidably installed in the No. 2 slide groove, a rotating plate is hinged on the No. 2 slider, a torsion spring is arranged at the bottom end of the rotating plate, one end of the torsion spring is connected to the rotating plate, and the other end of the torsion spring is connected to the No. 2 slider, a mounting plate is installed on the side of the vertical plate, one end of the No. 1 tension spring is fixedly connected to the mounting plate, and the other end of the No. 1 tension spring is fixedly installed on the No. 2 slider.

[0018] As an optional scheme of a copper enameled wire stranding device described in the present invention, wherein: a sleeve is provided at one end of the lower cross bar, a wedge block is slidably installed in the sleeve, a No. 1 compression spring is provided in the sleeve, one end of the No. 1 compression spring is connected to one end of the wedge block, and the wedge block is intermittently engaged with the rotating plate.

[0019] As an optional solution of a copper enameled wire twisting device described in the present invention, a fixing plate is installed on the side of the casing, a positioning column is installed on the fixing plate, a pressure plate for pressing and fixing the enameled wire is slidably installed on the positioning column, and the pressure plate is transmission-connected to the upper cross bar.

[0020] As an optional scheme of a copper enameled wire twisting device described in the present invention, wherein: a No. 2 compression spring is arranged on the positioning column, the bottom end of the No. 2 compression spring is in contact with the pressure plate, and connecting rods are respectively installed at both ends of the pressure plate. When the upper cross bar is located in the No. 1 horizontal through groove, one end of the connecting rod is in contact with the upper cross bar, and when the upper cross bar is located in the oblique through groove, the pressure plate presses the enameled wire onto the fixed plate under the action of the connecting rod.

[0021] As an optional solution of the copper enameled wire twisting device described in the present invention, a rubber pad is arranged at the bottom of the pressing plate, and when the pressing plate presses the enameled wire, the rubber pad prevents the enameled wire from sliding.

[0022] As an optional scheme of a copper enameled wire twisting device described in the present invention, an airbag is provided on the side of the vertical plate, a one-way valve is provided at the air inlet of the airbag, a hose is installed at the air outlet of the airbag, one end of the hose is located directly above the enameled wire, and a fixing sleeve for fixing the hose is installed on the upper scraper. When the upper cross bar slides in the No. 2 horizontal groove, one end of the upper cross bar contacts the airbag, and the airbag blows off the insulating layer debris on the surface of the enameled wire through the hose.

[0023] The present invention has the following beneficial effects:

[0024] 1. After the motor of the copper enameled wire stranding device is started, the driving gear and the No. 1 transmission gear are meshed to drive the forward gear to rotate. At this time, the forward gear is meshed with the rack, while the reset gear is not meshed with the rack. The upper crossbar and the lower crossbar slide from the No. 1 horizontal groove into the oblique groove, and then the insulating layer on the surface of the enameled wire is scraped off. After the insulating layer is scraped off, the forward gear is no longer meshed with the rack, and the reset gear is meshed with the rack, so the rack moves in the opposite direction. At this time, the wedge block is engaged with the rotating plate, and the wedge block drives the No. 2 slider to move. The No. 3 tension spring is stretched and stores force. When the reset gear is not engaged with the rack, the No. 3 tension spring is reset and the No. 2 slider is quickly pulled to move, further driving the wedge block to move quickly, and then the lower scraper is driven to move quickly through the lower cross bar. At this time, the enameled wire is quickly pulled by the upper scraper and the lower scraper, and the insulating layer debris on the surface of the enameled wire is shaken off, preventing the debris from being twisted into the enameled wire ends during subsequent twisting, and preventing the enameled wire ends from heating up due to poor contact, thereby improving the reliability and safety of the enameled wire ends after twisting.

[0025] 2. In the copper enameled wire twisting device, when the upper cross bar slides from the No. 1 horizontal groove to the oblique groove, the upper cross bar and the connecting rod no longer conflict with each other. At this time, the pressure plate presses the enameled wire end onto the fixed plate under the action of the No. 2 compression spring. Therefore, in the process of scraping and twisting the enameled wire, it is no longer necessary to manually hold and fix the enameled wire, which reduces manpower operation and improves the practicality of the device.

[0026] 3. In the copper enameled wire twisting device, when the upper cross bar slides in the No. 2 horizontal groove, one end of the upper cross bar contacts the airbag. At this time, the airbag exhausts air outwards through the hose. The gas blown out by the hose blows off the insulating layer debris attached to the surface of the enameled wire, preventing the debris from being twisted into the enameled wire ends, further improving the reliability and safety of the enameled wire ends after twisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention from the side.

[0029] Figure 3 Schematic cross-sectional structure diagram of the wire shaking mechanism of the present invention.

[0030] Figure 4 For the present invention Figure 3 Enlarged structure diagram of part A in the present invention.

[0031] Figure 5 Internal structure diagram of the present invention.

[0032] Figure 6 Schematic cross-sectional structure diagram of the present invention in a top view.

[0033] Figure 7 Schematic structure diagram of the connection between the lower scraper and the motor drive of the present invention.

[0034] Figure 8 Schematic structure diagram of the vertical plate of the present invention.

[0035] Figure 9 Exploded structure diagram of the wedge block and the sleeve of the present invention.

[0036] Figure 10 Schematic structure diagram of the forward gear and the return gear of the present invention.

[0037] In the figure: 100, wire scraping mechanism; 101, housing; 102, wire twisting plate; 103, upper scraper; 104, lower scraper; 200, wire shaking mechanism; 201, vertical plate; 202, motor; 203, driving gear; 204, first transmission gear; 205, first slider; 206, return gear; 207, forward gear; 208, rack; 209, positioning rod; 210, second tension spring; 211, second chute; 212, support plate; 213, aggregate box; 214, second transmission gear; 215, upper cross bar; 216, first chute; 217, upper flat plate; 218, pull plate; 219, transmission rod; 220, pull rod; 221, lower cross bar; 222, wedge block; 223, sleeve; 226, lower flat plate; 227, guiding groove; 228, first horizontal through groove; 229, inclined through groove; 230, second horizontal through groove; 231, mounting plate; 232, first tension spring; 233, second slider; 234, torsion spring; 235, rotating plate; 236, first compression spring; 301, fixing plate; 302, pressing plate; 303, connecting rod; 304, second compression spring; 305, positioning column; 306, rubber pad; 401, airbag; 402, one-way valve; 403, hose; 404, fixing sleeve. Specific embodiments

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1: This embodiment is intended to promote the solution of the existing copper enameled wire stranding device. After the insulation layer on the surface of the enameled wire is scraped off with a scraper, the stranding process is directly carried out. However, part of the insulation layer will still adhere to the surface of the enameled wire after being scraped off. Therefore, when stranding, some debris from the insulation layer will be twisted into the enameled wire, causing poor contact of the enameled wire ends, causing the wire ends to heat up during subsequent use, which has certain safety risks. Please refer to Figures 1 to 10 A copper enameled wire stranding device, comprising a housing 101, a stranding plate 102 for stranding wires is arranged inside the housing 101, a scraping mechanism 100 for scraping off the insulating layer of the enameled wires is arranged inside the housing 101, a motor 202 for driving the stranding plate 102 to rotate is arranged inside the housing 101, the scraping mechanism 100 comprises an upper scraper 103 and a lower scraper 104, a vertical plate 201 is arranged inside the housing 101, the upper scraper 103 and the lower scraper 104 are slidably mounted on the vertical plate 201, and the lower scraper 104 The upper scraper 103 and the lower scraper 104 are connected to the motor 202 for transmission, and move synchronously. A wire shaking mechanism 200 is arranged on the vertical plate 201, and the wire shaking mechanism 200 includes a No. 1 tension spring 232 arranged on the side of the vertical plate 201. The upper scraper 103 and the lower scraper 104 move in the opposite direction after scraping off the insulating layer on the surface of the enameled wire. The No. 1 tension spring 232 accumulates force. Under the action of the No. 1 tension spring 232, the upper scraper 103 and the lower scraper 104 move quickly away from the stranding plate 102, and at the same time shake off the insulating layer debris on the surface of the enameled wire.

[0040] It should be noted that the stranding plate 102 is provided with a through hole for inserting the enameled wire. When stranding the wire, the worker holds the coil, and under the action of the motor 202, the stranding plate 102 can move while rotating (the connection structure between the motor 202 and the stranding plate 102 is prior art and is therefore not drawn in the figure), thereby twisting the wire ends of the coil together.

[0041] For details, please refer to Figure 5, lower flat plates 226 are installed at both ends of the lower scraper 104, upper flat plates 217 are installed at both ends of the upper scraper 103, positioning rods 209 are installed on the lower flat plates 226, the upper flat plates 217 are slidably sleeved on the positioning rods 209, a second tension spring 210 is connected between the lower flat plates 226 and the upper flat plates 217, the second tension spring 210 is sleeved on the positioning rods 209, an upper cross bar 215 is installed on one side of the upper flat plate 217, a lower cross bar 221 is installed on the side of the lower flat plate 226 away from the lower scraper 104, a guiding groove 227 is formed on the vertical plate 201, the upper cross bar 215 and the lower cross bar 221 are slidably installed in the guiding groove 227, an aggregate box 213 for collecting the enameled wire insulation is arranged on the side of the vertical plate 201, and the aggregate box 213 is located directly below the enameled wire.

[0042] Among them, please refer to Figure 7 , the guiding groove 227 includes a first horizontal through groove 228, an inclined through groove 229 and a second horizontal through groove 230, the first horizontal through groove 228, the inclined through groove 229 and the second horizontal through groove 230 are connected in sequence. When the upper cross bar 215 and the lower cross bar 221 respectively slide from the first horizontal through groove 228 into the inclined through groove 229, the upper scraper 103 and the lower scraper 104 jointly clamp the enameled wire. When the upper cross bar 215 and the lower cross bar 221 respectively slide in the second horizontal through groove 230, the upper scraper 103 and the lower scraper 104 jointly scrape off the insulating layer on the surface of the enameled wire.

[0043] Among them, a pair of guiding grooves 227 are provided, which are respectively used to guide the upper cross bar 215 and the lower cross bar 221. Moreover, in order to achieve the effect that when the upper cross bar 215 and the lower cross bar 221 respectively slide from the first horizontal through groove 228 into the inclined through groove 229, the upper scraper 103 and the lower scraper 104 jointly clamp the enameled wire, the distance between a pair of second horizontal through grooves 230 is less than the distance between a pair of first horizontal through grooves 228.

[0044] In addition, please refer to Figure 5 , a first sliding groove 216 is arranged inside the machine shell 101, a first sliding block 205 is slidably installed on the first sliding groove 216, a pull rod 220 for pulling the lower scraper 104 to move is installed on the first sliding block 205, a pull plate 218 is arranged on the lower scraper 104, the pull rod 220 is slidably inserted into the pull plate 218, a driving gear 203 is installed on the output shaft of the motor 202, a support plate 212 is arranged inside the machine shell 101, a pair of transmission rods 219 are rotatably installed on the support plate 212, a first transmission gear 204 and a second transmission gear 214 are respectively installed at one ends of the pair of transmission rods 219, and the first transmission gear 204 and the second transmission gear 214 are respectively meshed with the driving gear 203.

[0045] In addition, a rack 208 is installed on the side of the first slider 205. The rack 208 is a double-tooth rack. The other end of the transmission rod 219 connected to the first transmission gear 204 is installed with a forward gear 207. The forward gear 207 meshes with the upper teeth of the rack 208. The other end of the transmission rod 219 connected to the second transmission gear 214 is installed with a reset gear 206. The reset gear 206 meshes with the lower teeth of the rack 208. Both the forward gear 207 and the reset gear 206 are configured as incomplete gears. When the forward gear 207 meshes with the rack 208, the rack 208 moves away from the stranding plate 102. When the reset gear 206 meshes with the rack 208, the rack 208 moves towards the stranding plate 102.

[0046] It should be noted that, please refer to Figure 10 , both the forward gear 207 and the reset gear 206 are configured as incomplete gears, and the forward gear 207, the reset gear 206 and the rack 208 do not mesh simultaneously. Specifically, the process of scraping the insulating layer from the enameled wire includes the following steps: when the forward gear 207 meshes with the rack 208, the rack 208 moves away from the stranding plate 102. At this time, the upper scraper 103 and the lower scraper 104 jointly scrape the insulating layer on the surface of the enameled wire; when the reset gear 206 meshes with the rack 208 (at this time, the upper scraper 103 and the lower scraper 104 still clamp the enameled wire), the rack 208 moves towards the stranding plate 102, and the upper scraper 103 and the lower scraper 104 will cause the enameled wire to bend due to clamping the enameled wire; when the forward gear 207, the reset gear 206 and the rack 208 are not meshing, the upper scraper 103 and the lower scraper 104 quickly reset under the action of the first tension spring 232. The previously bent enameled wire quickly straightens, and at the same time, the insulating layer debris attached to the surface of the enameled wire is shaken off; then the forward gear 207 meshes with the rack 208 again, the rack 208 moves away from the stranding plate 102, the upper scraper 103 and the lower scraper 104 are separated from the enameled wire, and then the stranding plate 102 performs stranding; after the stranding is completed, the reset gear 206 meshes with the rack 208 again, and the rack 208 drives the upper scraper 103 and the lower scraper 104 to reset.

[0047] Please refer to Figure 6 , Figure 8 , on the side of the vertical plate 201, a second sliding groove 211 is provided. A second slider 233 is slidably installed in the second sliding groove 211. A rotating plate 235 is hinged on the second slider 233. A torsion spring 234 is provided at the bottom end of the rotating plate 235. One end of the torsion spring 234 is connected to the rotating plate 235, and the other end of the torsion spring 234 is connected to the second slider 233. An installation plate 231 is installed on the side of the vertical plate 201. One end of the first tension spring 232 is fixedly connected to the installation plate 231, and the other end of the first tension spring 232 is fixedly installed on the second slider 233.

[0048] Please refer to Figure 5 ,Figure 9 A sleeve 223 is provided at one end of the lower cross bar 221, a wedge block 222 is slidably installed in the sleeve 223, a No. 1 compression spring 236 is provided in the sleeve 223, one end of the No. 1 compression spring 236 is connected to one end of the wedge block 222, and the wedge block 222 is intermittently engaged with the rotating plate 235.

[0049] In this embodiment: after the motor 202 is started, the forward gear 207 is driven to rotate by meshing the driving gear 203 and the No. 1 transmission gear 204. At this time, the forward gear 207 is meshed with the rack 208, while the reset gear 206 is not meshed with the rack 208. The upper cross bar 215 and the lower cross bar 221 slide from the No. 1 horizontal groove 228 into the oblique groove 229. Under the action of the No. 2 tension spring 210, the upper scraper 103 and the lower scraper 104 jointly clamp the enameled wire, and then scrape off the insulating layer on the surface of the enameled wire. After the insulating layer is scraped off, the forward gear 207 is no longer meshed with the rack 208, and the reset gear 206 is meshed with the rack 208, so the rack 208 moves in the opposite direction. At this time, the wedge Block 222 is engaged with rotating plate 235, wedge block 222 drives slider No. 233 to move, tension spring No. 1 232 is stretched and stored, when reset gear 206 is not engaged with rack 208, tension spring No. 1 232 is reset, and slider No. 233 is quickly pulled to move, further driving wedge block 222 to move quickly, and then lower scraper 104 is driven to move quickly through lower cross bar 221, at this time, the enameled wire is quickly pulled by upper scraper 103 and lower scraper 104, and the insulating layer debris on the surface of the enameled wire is shaken off, so as to prevent the debris from being twisted into the enameled wire head during subsequent twisting, and to prevent the enameled wire head from heating up due to poor contact, thereby improving the reliability and safety of the enameled wire head after twisting.

[0050] Embodiment 2: This embodiment is intended to promote the solution of the problem that the upper scraper 103 and the lower scraper 104 will pull the enameled wire when scraping off the insulation layer of the enameled wire, and the enameled wire coil needs to be fixed manually. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figures 1 to 10 A fixing plate 301 is installed on the side of the housing 101 , a positioning column 305 is installed on the fixing plate 301 , a pressing plate 302 for pressing and fixing the enameled wire is slidably installed on the positioning column 305 , and the pressing plate 302 is transmission-connected to the upper cross bar 215 .

[0051] Please refer to Figure 1A No. 2 compression spring 304 is provided on the positioning column 305, and the bottom end of the No. 2 compression spring 304 is in conflict with the pressure plate 302. Connecting rods 303 are respectively installed at both ends of the pressure plate 302. When the upper cross bar 215 is located in the No. 1 horizontal groove 228, one end of the connecting rod 303 is in conflict with the upper cross bar 215. When the upper cross bar 215 is located in the oblique groove 229, the pressure plate 302 presses the enameled wire onto the fixed plate 301 under the action of the connecting rod 303. A rubber pad 306 is provided at the bottom of the pressure plate 302. When the pressure plate 302 presses the enameled wire, the rubber pad 306 prevents the enameled wire from sliding.

[0052] In the present embodiment: when the upper cross bar 215 slides from the No. 1 horizontal groove 228 to the oblique groove 229, the upper cross bar 215 and the connecting rod 303 no longer conflict with each other. At this time, the pressure plate 302 presses the end of the enameled wire onto the fixed plate 301 under the action of the No. 2 compression spring 304, so that in the process of scraping and twisting the enameled wire, it is no longer necessary to manually hold and fix the enameled wire, which reduces manpower operation and improves the practicality of the device.

[0053] Embodiment 3: This embodiment is intended to promote the solution of the problem of further removing the insulating layer debris attached to the surface of the enameled wire. This embodiment is an improvement made on the basis of Embodiment 2. For details, please refer to Figures 1 to 10 An airbag 401 is arranged on the side of the vertical plate 201, a one-way valve 402 is arranged at the air inlet of the airbag 401, a hose 403 is installed at the air outlet of the airbag 401, one end of the hose 403 is located directly above the enameled wire, and a fixing sleeve 404 for fixing the hose 403 is installed on the upper scraper 103. When the upper cross bar 215 slides in the second horizontal groove 230, one end of the upper cross bar 215 contacts the airbag 401, and the airbag 401 blows off the insulating layer debris on the surface of the enameled wire through the hose 403, wherein the airbag 401 is arranged as a rubber airbag with a spring inside, and the airbag 401 can automatically recover under the action of the spring after being exhausted.

[0054] It should be noted that the one-way valve 402 includes a sleeve and a rotating plate hinged in the sleeve. The rotating plate is rotated in one direction by a spring, so the gas can only pass through the one-way valve 402 in one direction. The specific structure and principle of the one-way valve 402 are well known to those skilled in the art and will not be elaborated here.

[0055] In the present embodiment: when the upper cross bar 215 slides in the second horizontal groove 230, one end of the upper cross bar 215 contacts the airbag 401. At this time, the airbag 401 exhausts air outwards through the hose 403. The gas blown out by the hose 403 blows off the insulating layer debris attached to the surface of the enameled wire, preventing the debris from being rolled into the enameled wire ends, thereby further improving the reliability and safety of the enameled wire ends after twisting.

[0056] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0057] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A copper enameled wire stranding device, comprising a housing, a stranding plate for stranding the wires arranged inside the housing, a scraping mechanism for scraping off the insulating layer of the enameled wires arranged inside the housing, and a motor for driving the stranding plate to rotate arranged inside the housing, characterized in that: The scraping mechanism includes an upper scraper and a lower scraper. A vertical plate is arranged inside the housing. The upper scraper and the lower scraper are slidably mounted on the vertical plate. The lower scraper is connected to the motor transmission. The upper scraper and the lower scraper move synchronously. A wire shaking mechanism is arranged on the vertical plate, and the wire shaking mechanism includes a No. 1 tension spring arranged on the side of the vertical plate. After the upper scraper and the lower scraper scrape off the insulating layer on the surface of the enameled wire, they move in the opposite direction, and the No. 1 tension spring accumulates force; Under the action of the No. 1 tension spring, the upper scraper and the lower scraper quickly move away from the stranding plate, and at the same time shake off the insulation debris on the surface of the enameled wire; Lower plates are installed at both ends of the lower scraper, upper plates are installed at both ends of the upper scraper, a positioning rod is installed on the lower plate, the upper plate is slidably sleeved on the positioning rod, a second tension spring is connected between the lower plate and the upper plate, and the second tension spring is sleeved on the positioning rod; An upper cross bar is installed on one side of the upper plate, a lower cross bar is installed on the side of the lower plate away from the lower scraper, a guide groove is opened on the vertical plate, and the upper cross bar and the lower cross bar are slidably installed in the guide groove; A collecting box for collecting the enameled wire sheath is arranged on the side of the vertical plate, and the collecting box is located directly below the enameled wire.

2. A copper enameled wire stranding device according to claim 1, characterized in that: The guide groove includes a No. 1 horizontal through groove, an oblique through groove and a No. 2 horizontal through groove, and the No. 1 horizontal through groove, the oblique through groove and the No. 2 horizontal through groove are connected in sequence; When the upper cross bar and the lower cross bar slide from the No. 1 horizontal groove into the oblique groove respectively, the upper scraper and the lower scraper clamp the enameled wire together.

3. A copper enameled wire stranding device according to claim 2, characterized in that: A No. 1 slide groove is arranged inside the casing, a No. 1 slide block is slidably mounted on the No. 1 slide groove, a pull rod is mounted on the No. 1 slide block, a pull plate is arranged on the lower scraper plate, and the pull rod and the pull plate are slidably plugged; A driving gear is installed on the output shaft of the motor, a support plate is provided inside the housing, a pair of transmission rods are rotatably installed on the support plate, a first transmission gear and a second transmission gear are respectively installed at one end of the pair of transmission rods, and the first transmission gear and the second transmission gear are respectively meshed with the driving gear; A rack is installed on the side of the No. 1 slider, and the rack is set as a double-tooth rack. The other end of the transmission rod connected to the No. 1 transmission gear is installed with a forward gear, and the other end of the transmission rod connected to the No. 2 transmission gear is installed with a reset gear. The forward gear and the reset gear are respectively meshed with the rack; The forward gear and the reset gear are both set as incomplete gears.

4. A copper enameled wire stranding device according to claim 3, characterized in that: The line shaking mechanism also includes a No. 2 slide groove arranged on the side of the vertical plate, a No. 2 slider is slidably installed in the No. 2 slide groove, a rotating plate is hinged on the No. 2 slider, a torsion spring is arranged at the bottom end of the rotating plate, one end of the torsion spring is connected to the rotating plate, and the other end of the torsion spring is connected to the No. 2 slider, a mounting plate is installed on the side of the vertical plate, one end of the No. 1 tension spring is fixedly connected to the mounting plate, and the other end of the No. 1 tension spring is fixedly installed on the No. 2 slider.

5. A copper enameled wire stranding device according to claim 4, characterized in that: A sleeve is arranged at one end of the lower cross bar, a wedge block is slidably installed in the sleeve, a No. 1 compression spring is arranged in the sleeve, one end of the No. 1 compression spring is connected with one end of the wedge block, and the wedge block is intermittently engaged with the rotating plate.

6. A copper enameled wire stranding device according to claim 2, characterized in that: A fixing plate is installed on the side of the casing, a positioning column is installed on the fixing plate, a pressing plate used for pressing and fixing the enameled wire is slidably installed on the positioning column, and the pressing plate is transmission-connected with the upper cross bar.

7. A copper enameled wire stranding device according to claim 6, characterized in that: A No. 2 compression spring is arranged on the positioning column, and the bottom end of the No. 2 compression spring is in contact with the pressure plate. Connecting rods are respectively installed at both ends of the pressure plate. When the upper cross bar is located in the No. 1 horizontal groove, one end of the connecting rod is in contact with the upper cross bar. When the upper cross bar is located in the oblique groove, the pressure plate presses the enameled wire onto the fixed plate under the action of the connecting rod.

8. A copper enameled wire stranding device according to claim 7, characterized in that: A rubber pad is arranged at the bottom of the pressing plate, and when the pressing plate presses the enameled wire, the rubber pad prevents the enameled wire from sliding.

9. A copper enameled wire stranding device according to claim 2, characterized in that: An air bag is arranged on the side of the vertical plate, a one-way valve is arranged at the air inlet of the air bag, a hose is installed at the air outlet of the air bag, one end of the hose is located directly above the enameled wire, and a fixing sleeve for fixing the hose is installed on the upper scraper. When the upper cross bar slides in the No. 2 horizontal groove, one end of the upper cross bar contacts the air bag, and the air bag blows off the insulating layer debris on the surface of the enameled wire through the hose.

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