Wire end insulation layer segmentation device based on thermal melting

Abstract

The utility model discloses a wire end insulation layer segmentation device based on thermal melting, which comprises a segmentation handle, the segmentation handle comprises a shell, and a motor assembly, a transmission assembly and a head cutting assembly which are sequentially arranged in the shell in the axial direction, and the motor assembly comprises a speed reduction motor and a driving wheel arranged at the output end of the speed reduction motor. The transmission assembly comprises a rotating shaft, a separating wheel, a rotating sliding ring and a shifting fork. The head cutting assembly comprises a limiting shaft, a head cutting base, a turning plate base, a turning plate, conductive columns and an electric heating piece, one end of the limiting shaft is fixed to the rotating shaft, the head cutting base is installed at the other end of the limiting shaft, the conductive columns are fixedly installed on the turning plate, and the two ends of the electric heating piece are installed on the two conductive columns. According to the utility model, the wire end of the wire is segmented and peeled in a rotary hot melting manner, the cutting head assembly adopts a turning plate structure, so that the segmentation pressure is controllable, the over-voltage and under-voltage are prevented, the segmentation force for removing the insulating layer is adjustable, the compatibility is good, and the wire core is not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of wire end removal devices, in particular to a wire end insulation layer separation device based on thermal melting. Background Art

[0002] Wire end treatment is an indispensable processing step in electronic assembly products. It is required to reduce damage to the metal core of the wire, especially for small-section wires that are twisted together by extremely fine wires. If harder materials are used in the end treatment process, the wires are easily damaged or even broken under slight external forces, resulting in the wire diameter not meeting the use requirements.

[0003] The current end processing devices on the market are simple in design, and their structural characteristics have many problems. The main problems are as follows: One is that two sets of opposing sharp blades are usually used to cut the insulation layer of the wire end, which is prone to overcutting, causing damage and breakage of the wire core; and it is easy to produce incomplete cuts, causing the wire core to deform under tension when the insulation layer is removed, causing the risk of breakage. This method cannot process small-section wires. Another method is to use opposing sharp blades and rotation to process the wire end, which is also prone to overcutting, causing damage and breakage of the wire core. The design of the device requires high precision and high processing costs. Another method is to use sharp blades and heat. The effect of this processing method depends on the skills of the processor. Strong force can also easily cause damage and breakage of the core. There are strict operating requirements for the use of the cutter. If it is not performed as required, the life of the cutter will be greatly shortened. Utility Model Content

[0004] The purpose of the utility model is to provide a wire end insulation layer separation device based on heat melting, which is used to remove the wire end before welding and crimping various types of wires (except optical fibers) in electronic assembly products. The device can process wires of different materials and specifications, achieve no damage to the wire core, a smooth cross-section, and strong adaptability.

[0005] In order to achieve the above-mentioned purpose, the present invention is specifically realized through the following technical solutions:

[0006] A device for separating the insulation layer of a wire end by heat melting comprises a separating handle, the separating handle comprising a housing and a motor assembly, a transmission assembly and a cutting assembly axially mounted in sequence inside the housing, a starting switch being mounted on the outside of the housing, the motor assembly comprising a reduction motor and a driving wheel mounted on the output end of the reduction motor, the transmission assembly comprising a rotating shaft, a separating wheel, a rotating slip ring and a shift fork, one end of the rotating shaft being coaxially fixed to the separating wheel, the rotating slip ring being sleeved on the rotating shaft, the separating wheel being in transmission engagement with the driving wheel, the bottom of the shift fork being fixedly connected to the separating wheel, and the top of the shift fork protruding from the housing;

[0007] The cutting head assembly includes a limit shaft, a cutting head seat, a flip seat, a flip plate, a conductive column and an electric heater. One end of the limit shaft is fixed to the rotating shaft, and the cutting head seat is installed at the other end of the limit shaft. A cutting groove is provided at the front end of the cutting head seat; the flip seat is fixed on the limit shaft, the eccentric bottom of the flip plate is hinged to the front end of the flip seat through a fixed column, and a baffle protrudes from the top of the flip plate and is movably connected to the inner wall of the shell; there are two groups of conductive columns, which are fixedly installed on the flip plate, and both ends of the electric heater are installed on the two conductive columns, and the middle part of the electric heater corresponds to the cutting groove.

[0008] Furthermore, the reduction motor is mounted at the end inside the housing through a fixing block.

[0009] Furthermore, a rotating slip ring and a fixed sleeve are sequentially sleeved on the outer side of the rotating shaft. The rotating slip ring is fixedly connected to the rotating shaft. The inner wall of the fixed sleeve is slidably fitted with the rotating slip ring. The outer wall of the fixed sleeve is fixedly connected to the outer shell.

[0010] Furthermore, a pressure regulating plate is installed between the flap seat and the flap, and the pressure regulating plate is located on the other side of the eccentric side of the fixed column.

[0011] Furthermore, a return spring is installed between the flap seat and the flap, and the return spring is located on the other side of the eccentric side of the fixed column.

[0012] Furthermore, the conductive column is fixedly mounted on the flap through an insulating sleeve.

[0013] Furthermore, an end limiting hole is axially inwardly provided at the front end of the cutting head seat.

[0014] Furthermore, the cutting head seat is fixedly mounted on the front end of the limiting shaft through a locking ring.

[0015] Furthermore, the split handle is connected to a wire, the front end of the wire is connected to the conductive column, and the end of the wire is connected to a CNC power supply.

[0016] The technical solution of the present invention utilizes a rotary hot-melt method to split and peel the wire ends of the wires. The cutting head assembly adopts a flap structure to control the splitting pressure, prevent overvoltage and undervoltage, and the splitting force for removing the insulation layer is adjustable, with good compatibility and no damage to the wire core. The ejection opening and closing method adopted at the end of the handle facilitates the installation of the processed wire ends. The locking ring and cutting head seat provided in the splitting head can be disassembled, support wires of various specifications, and facilitate the replacement of the cutting head seat. By connecting a CNC power supply, the heating power of the electric heater is accurately controlled to support the splitting of the insulation layer of wire ends of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the split handle in the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the split handle in the utility model;

[0019] Figure 3 This is a schematic diagram of the other side of the internal structure of the split handle in the present invention;

[0020] Figure 4 This is a structural diagram of the center-cut headstock of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the flap in the present utility model;

[0022] Figure 6 This is another overall structural diagram of the present invention.

[0023] In the figure, 1-housing; 11-start switch; 12-first housing; 13-second housing; 2-motor assembly; 21-reduction motor; 22-driving wheel; 3-transmission assembly; 31-rotating shaft; 32-separating wheel; 33-shift fork; 34-rotating slip ring; 35-fixing sleeve; 4-head cutting assembly; 41-limiting shaft; 42-head cutting seat; 421-cutting groove; 422-end limiting hole; 43-flip seat; 44-flip; 441-fixing column; 442-blocking piece; 443-insulating sleeve; 45-conductive column; 46-electric heating plate; 47-pressure regulating plate; 48-locking ring; 5-wire; 6-CNC power supply. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0028] like Figures 1 to 6 As shown, the utility model is a device for separating the insulation layer of a wire end based on heat melting, which includes a separating handle. The separating handle includes a shell 1 and a motor assembly 2, a transmission assembly 3 and a cutting head assembly 4 axially installed in sequence inside the shell 1. A starting switch 11 is installed on the outside of the shell 1. In a specific embodiment, the shell 1 can be divided into a first shell 12 at the front end of the separating handle and a second shell 13 at the rear end of the separating handle to facilitate the assembly and disassembly of internal components. The starting switch 11 is installed in the middle of the separating handle, and the starting switch 11 is connected to the circuit of the separating handle.

[0029] The motor assembly 2 includes a reduction motor 21 and a driving pulley 22 mounted at the output end of the reduction motor 21. The reduction motor 21 is mounted at the end of the interior of the housing 1 via corresponding fixing blocks. The reduction motor 21 and the driving pulley 22 are coaxially mounted with the split handle. The motor assembly 2 is used to provide axial rotational driving force forward and is activated by the start switch 11.

[0030] The transmission assembly 3 includes a rotating shaft 31, a separating wheel 32, and a shift fork 33. One end of the rotating shaft 31 is coaxially fixed to the separating wheel 32. The separating wheel 32 and the driving wheel 22 are in transmission cooperation. The bottom of the shift fork 33 is fixedly connected to the separating wheel 32, and the top of the shift fork 33 protrudes from the housing 1. In a specific embodiment, the separating wheel 32 and the driving wheel 22 can achieve a coupling transmission through tooth engagement. An annular groove is axially provided in the middle of the separating wheel 32. The shift fork 32 is L-shaped, with its vertical end inserted into the annular groove and its lateral end protruding from the housing 1. The separation and engagement of the separating wheel 32 and the driving wheel 22 are achieved by pushing the shift fork 32 back and forth, thereby controlling the transmission connection or disconnection. The rotating shaft 31 is installed on the other side of the separating wheel 32 axially and rotates or stops with the separating wheel 32 to achieve transmission.

[0031] The cutting assembly 4 includes a limiting shaft 41, a cutting seat 42, a flap seat 43, a flap 44, a conductive post 45, and a heating plate 46. One end of the limiting shaft 41 is fixed to the rotating shaft 31, and the cutting seat 42 is mounted on the other end of the limiting shaft 41. A cutting groove 421 is transversely defined at the front end of the cutting seat 42. The flap seat 43 is fixed to the limiting shaft 41. The eccentric bottom of the flap 44 is hinged to the front end of the flap seat via a fixing post 441. A stopper 442 protrudes from the top of the flap 44 and is movably connected to the inner wall of the housing. Two sets of conductive posts 45 are fixed to the flap 44. The ends of the heating plate 46 are respectively mounted on two conductive posts 45, with the middle portion of the heating plate 46 corresponding to the cutting groove 421. A circle of bosses is provided within the interior of the first housing 12. When the shift fork is pushed forward, they contact the stopper 442 provided on the flap 44, forming a movable fulcrum and forcing the flap 44 to rotate.

[0032] The cutting assembly 4 is used to fix the cutting end and thermally cut the insulation layer of the wire end. When the shift fork 33 is pushed forward, the limit shaft 41 and the flap seat 43 are simultaneously pushed axially forward. When the flap seat 43 is pushed forward, the flap 44 deflects around the fixed column 441, thereby driving the conductive column 45 and the electric heater 46 to open and close a certain angle with the cutting seat 42 to facilitate the placement of the wire end to be thermally cut. The shift fork 32 is pushed back, and the flap 44 returns to its original position. The electric heater 46 and the cutting groove 421 of the cutting seat 42 are pressed against the radial sides of the wire end. When the power is turned on, the electric heater 46 heats up, and the motor assembly 2 rotates, so that the insulation layer of the outer layer of the wire end is circumferentially heated and cut, which can be easily removed. The insulation layer cutting device of the utility model is particularly suitable for wire ends that need to be individually and precisely processed, and has a good peeling effect.

[0033] In some embodiments, a rotating slip ring 34 and a fixed sleeve 35 are sequentially mounted on the outer side of the rotating shaft 31. The rotating slip ring 34 is fixedly connected to the rotating shaft 31. The inner wall of the fixed sleeve 35 slides with the rotating slip ring 34. The outer wall of the fixed sleeve 35 is fixedly connected to the housing 1. The rotating slip ring 34 and the fixed sleeve 35 are installed together to limit the rotating shaft and ensure the coaxiality of the rotating shaft 31.

[0034] Preferably, a pressure regulating plate 47 is installed between the flap seat 43 and the flap 44. The pressure regulating plate 47 is located on the other side of the eccentric side of the fixed column 441. The pressure regulating plate 47 is used to adjust the degree of opening and closing of the flap 44, and then adjust the closing pressure of the electric heating plate 46 and the cutting head seat 42. It can be suitable for wire ends with different cutting requirements such as different diameters and different insulation layer thicknesses.

[0035] Preferably, a return spring is installed between the flap seat 43 and the flap 44. The return spring is located on the other side of the eccentric side of the fixed column 441. The return spring is installed on the same side as the pressure regulating plate 47 and is used to reset the flap 44. The pressure regulating plate 47 is connected to the return spring and is installed in a threaded hole provided on the flap 44. The turning pressure of the flap 44 is adjusted using screws.

[0036] In the embodiment, the conductive post 45 is fixedly mounted on the flap 44 through the insulating sleeve 443. The wire post 45 is used to fix the electric heater 46 and conduct electricity. The wire post 45 is only electrically connected to the power supply device of the split handle, and the power supply is controlled by the start switch 11.

[0037] In some embodiments, the front end of the cutting seat 42 is provided with an end stopper hole 422 axially inwardly, and the end stopper hole 422 is used to place the wire end inward, thereby increasing the insulation layer cutting length. The side wall of the hole is provided with threads and screws for fixing and adjusting the length of the wire end.

[0038] Preferably, the cutting seat 42 is fixedly mounted on the front end of the limiting shaft 41 by a locking ring 48, thereby realizing that the cutting seat 42 is detachable, and it is convenient to disassemble and replace the cutting seat 42. A pit can be provided on the side of the cutting seat 42 to cooperate with the ball installed on the limiting shaft 41, so that it can be fixed in the working state, and the cutting seat 42 can be separated from the limiting shaft 41 by rotating the locking ring 48.

[0039] Specifically, in this embodiment, the splitting handle is connected to a wire 5, the front end of which is electrically connected to a conductive post 45, and the end of which is connected to a digital control power supply 6. The digital control power supply 6 comprises an aviation socket on the front panel of the housing, the housing, a voltage adjustment knob, a speed adjustment knob, and a fuse holder, a power switch, an anti-static wiring socket, and a display module on the rear panel; it is used to control the electric heating power, splitting speed, and time of the splitting handle.

[0040] The specific embodiments in the present invention are merely explanations of the present invention, and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A device for separating the insulation layer of a wire end based on heat melting, characterized in that: The invention comprises a split handle, which comprises a housing (1) and a motor assembly (2), a transmission assembly (3) and a head cutting assembly (4) which are axially mounted in sequence inside the housing, and a start switch (11) is mounted outside the housing; the motor assembly comprises a reduction motor (21) and a driving wheel (22) mounted at the output end of the reduction motor; the transmission assembly comprises a rotating shaft (31), a separating wheel (32) and a shift fork (33); one end of the rotating shaft is coaxially fixed to the separating wheel, a rotating slip ring is sleeved on the rotating shaft, the separating wheel is in transmission cooperation with the driving wheel, the bottom of the shift fork is fixedly connected to the separating wheel, and the top of the shift fork protrudes from the housing; The cutting head assembly comprises a limiting shaft (41), a cutting head seat (42), a flap seat (43), a flap (44), a conductive column (45) and an electric heater (46); one end of the limiting shaft is fixed to the rotating shaft, the cutting head seat is mounted on the other end of the limiting shaft, and a cutting groove (421) is provided at the front end of the cutting head seat; the flap seat is fixed on the limiting shaft, the eccentric bottom of the flap is hinged to the front end of the flap seat through a fixed column (441), and a baffle (442) movably connected to the inner wall of the shell is protruded from the top of the flap; the conductive columns are in two groups, which are fixedly mounted on the flap, and the two ends of the electric heater are mounted on the two conductive columns, and the middle of the electric heater corresponds to the cutting groove.

2. The device for separating the insulation layer of a wire end by heat melting according to claim 1, characterized in that: A rotating slip ring (34) and a fixed sleeve (35) are sequentially sleeved on the outer side of the rotating shaft. The rotating slip ring is fixedly connected to the rotating shaft. The inner wall of the fixed sleeve is slidably matched with the rotating slip ring. The outer wall of the fixed sleeve is fixedly connected to the outer shell.

3. The wire end insulation layer separation device based on heat melting according to claim 1, characterized in that: A pressure regulating plate (47) is installed between the flap seat and the flap, and the pressure regulating plate is located on the other side of the eccentric side of the fixed column.

4. The device for separating the insulation layer of a wire end by heat melting according to claim 1, characterized in that: A return spring is installed between the flap seat and the flap, and the return spring is located on the other side of the eccentric side of the fixed column.

5. The device for separating the insulation layer of a wire end by heat melting according to claim 1, characterized in that: The conductive column is fixedly mounted on the flap via an insulating sleeve (443).

6. The device for separating the insulation layer of a wire end by heat melting according to claim 1, characterized in that: An end stopper hole (422) is axially and inwardly formed at the front end of the cutting head seat.

7. The device for separating the insulation layer of a wire end by heat melting according to claim 1, characterized in that: The cutting head seat is fixedly mounted on the front end of the limiting shaft through a locking ring (48).

8. The device for separating the insulation layer of a wire end by heat melting according to claim 1, characterized in that: The split handle is connected to a wire (5), the front end of the wire is connected to the conductive column, and the end of the wire is connected to a digital control power supply (6).

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