Wire cutting equipment

Abstract

The utility model discloses wire cutting equipment, and relates to the technical field of NTC temperature sensor production and manufacturing equipment. The wire cutting equipment comprises a feeding end, a wire stripping mechanism and a wire cutting mechanism. The feeding end is provided with a plurality of feeding rolling shafts, and the feeding rolling shafts are symmetrically arranged in the first direction to form a first wire harness channel where wire harnesses can penetrate. The wire stripping mechanism is arranged corresponding to the wire harness channel in the second direction, and a rotary cutter is arranged on the side, away from the feeding end, of the wire stripping mechanism in the second direction. The wire cutting mechanism is located on the side, away from the feeding end, of the wire stripping mechanism in the second direction, the wire cutting mechanism comprises a plurality of first wire guide wheels and a wire cutting knife, the first wire guide wheels are symmetrically arranged in the first direction to form a second wire harness channel through which a wire harness can penetrate, and the wire cutting knife is arranged in the second direction. And the wire cutter is arranged corresponding to the second wire harness channel. By adopting the technology provided by the utility model, the space occupancy rate can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of NTC temperature sensor production and manufacturing equipment, in particular to a wire cutting device. Background Art

[0002] NTC temperature sensors are negative temperature coefficient (NTC) temperature sensors with high sensitivity and stability. They are primarily used in devices requiring precise temperature detection, such as air conditioners, refrigerators, and thermometers. During NTC temperature sensor manufacturing, the leads must be trimmed on the production line to limit their length.

[0003] Currently, the wire cutting process for NTC temperature sensors is largely automated, including automatic wire feeding, cutting, stripping, and twisting. However, due to varying operational processes, the speeds of adjacent processing steps vary. To address this, a Chinese utility model patent (CN205551342U) discloses a wire cutting and feeding buffer device for temperature sensors. This device uses a positioning guide pulley to slide up and down along a sliding track, triggering a metal sensor. This solves the problem of mismatched feed lengths caused by speed differences between the wire cutting and feeding machines. However, this external wire cutting and feeding buffer device requires separate connections to the wire cutting and feeding machines, occupying a significant amount of processing space. Utility Model Content

[0004] The utility model provides a wire cutting device to solve the problem in the prior art that an external wire cutting and feeding buffer device needs to occupy a large amount of processing space.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is to provide a wire cutting device, which includes: a feed end, which is provided with multiple feed rollers, and the multiple feed rollers are symmetrically arranged along a first direction to form a first wire harness channel that can pass through the wire harness; a wire stripping mechanism, which is arranged corresponding to the wire harness channel along a second direction, wherein the wire stripping mechanism is provided with a rotary cutter on the side away from the feed end along the second direction.

[0006] A wire cutting mechanism, the wire cutting mechanism is located along the second direction on the side of the wire stripping mechanism away from the feeding end, wherein the wire cutting mechanism includes a plurality of first wire wheels and a wire cutting knife, the plurality of first wire wheels are symmetrically arranged along the first direction to form a second wire harness channel through which the wire harness can be passed, and the wire cutting knife is arranged corresponding to the second wire harness channel.

[0007] The technical solution provided by this utility model has the following beneficial effects compared with the prior art:

[0008] By sequentially arranging the feeder, stripping mechanism, and cutting mechanism along the wire processing sequence, processes previously performed by multiple machines are integrated into a single machine, reducing wire transfer time between machines, minimizing space, and achieving an automated processing flow. Since wire harness raw materials are often wound into a cylindrical shape for transportation, multiple feed rollers are installed at the feeder to shape the curled wires and ensure they are evenly and stably transported along the first wire channel to the stripping mechanism for stripping.

[0009] Furthermore, the wire harness passes through a wire stripping mechanism to remove the outer insulation layer. The wire is then passed to the wire cutter by the first wire pulley of the wire cutting mechanism for cutting to the desired length. Compared to the current system, which uses a wire cutting feed buffer to coordinate the speeds of the feeder and cutter, this structure aligns the speeds of the feeding and cutting processes, eliminating the need for an additional wire cutting feed buffer and significantly reducing production space.

[0010] In some embodiments, the wire cutting mechanism further includes a plurality of second wire pulleys, which are spaced apart along the first direction to form a third wire harness channel through which the wire harness can be passed; wherein the second wire pulleys and the first wire pulley are respectively located on opposite sides of the wire cutting knife along the second direction.

[0011] With the above technical solution, when the wire length to be cut is set to be longer, the distance cut by the wire cutter will also be correspondingly longer. A second guide pulley is added to guide the wire bundle passing through the wire cutter so that the wire bundle can be cut smoothly. In particular, a collection device can be provided on the side of the second guide pulley away from the wire cutter.

[0012] Furthermore, the first guide wheel and the second guide wheel are also sleeved with guide belts.

[0013] The above technical solution adds a guide belt that effectively increases the friction between the first and second wire pulleys and the guided wire harness, thereby guiding the wire harness. The addition of the guide belt also reduces the crushing force on the wire harness stripping section, thereby preventing deformation of the wire harness stripping section.

[0014] In some embodiments, the wire cutter includes a first blade and a second blade, and the first blade and the second blade are staggered along the first direction.

[0015] With the above technical solution, since the wire harness is usually made of soft material and is easily deformed due to the pressure of the blade during cutting, the first blade and the second blade are staggered, so that the first blade and the second blade can cut the wire harness at a certain staggered angle along both sides of the wire harness, thereby effectively reducing the burrs of the wire harness cutting and improving the cutting efficiency.

[0016] In some embodiments, the second blade is connected to a driving device, and the driving device is used to drive the second blade to move toward the first blade along the first direction.

[0017] With the above technical solution, the first blade is fixed and the second blade moves toward the first blade for cutting. When cutting, only the second blade needs to be controlled to accurately control the cutting position of the wire harness, thereby reducing the complexity of the process.

[0018] In some embodiments, the cutting edges of the first blade and the second blade are triangular in shape.

[0019] With the above technical solution, the triangular design of the triangular first blade and the second blade makes the cutting surface of the wire harness inclined at a certain angle, thereby facilitating the first blade and the second blade to cut the wire harness and increasing the cutting speed.

[0020] In some embodiments, the wire cutter includes a first blade and a second blade, the first blade and the second blade are spaced apart along the first direction, wherein the first blade and the second blade are displaceable along the first direction so that the first blade and the second blade can fit together.

[0021] By adopting the above technical solution, the first blade and the second blade that can fit together are used, that is, the connecting surface of the first blade and the second blade is a plane, so that the cutting position of the wire harness can be positioned more accurately, and it is suitable for cutting wire harnesses of relatively hard materials.

[0022] In some embodiments, the wire stripping mechanism further includes a wire threading hole corresponding to the first wire harness channel, wherein the rotary cutter includes a plurality of rotating blades circumferentially arranged around the wire threading hole.

[0023] In some embodiments, the wire stripping mechanism further includes a wire stripping plate having a hollow space, wherein a plurality of the rotary cutters are located in the hollow space, wherein the rotary cutters can extend along the hollow space to the wire threading hole, or retract into the hollow space.

[0024] With the above technical solution, multiple rotary cutters can cover the circumference of the wire harness and perform a stripping operation on the wire harness. The rotary cutters are telescopic, so that they extend when the wire harness needs to be stripped and retract at other positions to facilitate the wire harness to pass through the threading hole smoothly.

[0025] In addition, the rotary cutter is arranged to be telescopic, so that it can come into contact with wire harnesses of different sizes, thereby stripping wire harnesses of multiple different sizes.

[0026] In some embodiments, the wire cutting device further comprises a material collecting box, wherein the material collecting box is located below the wire cutting knife along the first direction.

[0027] By adopting the above technical solution, when the wire harness is set to be cut to a shorter length, a collection box can be provided to directly hold the cut wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0029] Figure 1 This is a three-dimensional structural diagram of an embodiment of a wire cutting device provided by the utility model;

[0030] Figure 2 This is a front view of an embodiment of a wire cutting device provided by the utility model;

[0031] Figure 3 This is a side view of an embodiment of a wire stripping mechanism of a wire cutting device provided by the present invention;

[0032] Figure 4 This is a three-dimensional structural diagram of an embodiment of a wire cutting knife of a wire cutting device provided by the utility model Figure 1 ;

[0033] Figure 5 This is a side view of an embodiment of a wire cutting knife of a wire cutting device provided by the present invention;

[0034] Figure 6 This is a three-dimensional structural diagram of an embodiment of a wire cutting knife of a wire cutting device provided by the utility model Figure 2 .

[0035] In the picture:

[0036] 10. Feed end; 11. Feed roller; 12. First wire harness channel; 20. Wire stripping mechanism; 21. Rotary cutter; 22. Wire threading hole; 23. Wire stripping plate; 30. Wire cutting mechanism; 31. First wire pulley; 310. Second wire harness channel; 32. Wire cutter; 320. First blade; 321. Second blade; 33. Second wire pulley; 330. Third wire harness channel; 34. Guide belt; 40. Collection box. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In order to facilitate the subsequent description, before describing the specific structure of the wire cutting device, this application first combines Figure 1 Define a first direction (Z) and a second direction (X). The first direction is the height of the wire cutting device when it is normally placed, such as the Z direction; the second direction is the length of the wire cutting device when it is normally placed, such as the X direction. In this application, the first direction (Z) and the second direction (X) are perpendicular to each other.

[0039] It can be understood that the mutual perpendicularity in this application is not absolute perpendicularity, and the approximate perpendicularity caused by processing errors and assembly errors (for example, the angle between two structural features is 89.9°) is also within the range of mutual perpendicularity in this application.

[0040] See also Figures 1 to 3 As shown, Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a wire cutting device provided by the present application is shown; Figure 2 A front view of an embodiment of a wire cutting device provided by the present application is shown; Figure 3 A side view of an embodiment of a wire stripping mechanism 20 of a wire cutting device provided by the present application is shown.

[0041] In some embodiments, the wire cutting device includes: a feed end 10, a wire stripping mechanism 20, and a wire cutting mechanism 30. The feed end 10 is provided with a plurality of feed rollers 11, which are symmetrically arranged along a first direction to form a first wire harness channel 12 through which the wire harness can pass; the wire stripping mechanism 20 is arranged corresponding to the wire harness channel along a second direction, wherein a rotary cutter 21 is provided on the side of the wire stripping mechanism 20 away from the feed end 10 along the second direction.

[0042] The wire cutting mechanism 30 is located along the second direction on the side of the wire stripping mechanism 20 away from the feeding end 10, wherein the wire cutting mechanism 30 includes multiple first wire wheels 31 and wire cutting knives 32, and the multiple first wire wheels 31 are symmetrically arranged along the first direction to form a second wire harness channel 310 through which the wire harness can be passed, and the wire cutting knife 32 is arranged corresponding to the second wire harness channel 310.

[0043] In the embodiment of the present application, by sequentially arranging the feed end 10, the wire stripping mechanism 20, and the wire cutting mechanism 30 along the wire harness processing sequence, processes that were originally performed sequentially by multiple machines are integrated into the same machine, thereby reducing the time required to transport the wire harness between different machines, saving as much space as possible, and realizing an automated processing flow. In some application scenarios, since wire harness raw materials are mostly wound into a cylindrical shape for transportation, multiple feed rollers 11 are provided at the feed end 10 to shape the curled wire harness and ensure that it is evenly and stably transported along the first wire harness channel 12 to the wire stripping mechanism 20 for stripping.

[0044] For example, in combination Figure 1 and Figure 2 As shown, the feed end 10 is provided with 8 feed rollers 11, and the multiple feed rollers 11 are symmetrically arranged along the first direction. However, the present application does not limit the number of feed rollers 11, for example, it can also be set to 4, 6, etc.

[0045] In addition, the wire harness is sequentially passed through the peeling knife 21 (such as Figure 3 As shown in FIG. 2 , the outer insulation layer of the wire harness is stripped off, and the wire is further transferred to the wire cutter 32 by the first wire wheel 31 of the wire cutting mechanism 30 for cutting to a set length. For example, the wire stripping mechanism 20 further includes a wire threading hole 22, which corresponds to the first wire harness channel 12, wherein the rotary cutter 21 includes a plurality of rotating blades circumferentially arranged around the wire threading hole 22. Figure 3 The middle rotary cutter 21 includes four rotary blades equidistantly arranged along the circumferential direction.

[0046] In some embodiments, the wire stripping mechanism 20 further includes a wire stripping plate 23 having a hollow space, wherein a plurality of rotary cutters 21 are located in the hollow space, wherein the rotary cutters 21 can extend along the hollow space to the wire threading hole 22 or retract into the hollow space.

[0047] In this embodiment of the present application, multiple rotary cutters 21 can cover the circumference of the wire harness to perform a stripping operation. The rotary cutters 21 are telescopic, extending when the wire harness needs stripping and retracting at other locations to facilitate smooth passage of the wire harness through the threading holes 22. Exemplarily, the rotary cutters 21 are telescopic, allowing them to contact wire harnesses of varying sizes, thereby stripping a variety of wire harness sizes.

[0048] In some embodiments, combined Figure 1 and Figure 2 As shown, the wire cutting device further includes a material collecting box 40 , which is located below the wire cutting knife 32 along the first direction.

[0049] In the embodiment of the present application, when the length of the wire harness to be cut is set to be shorter (i.e., the length of the wire harness after cutting is not enough to extend to the second wire wheel 33), the wire harness passing through the wire cutter 32 can maintain a certain straightness and can directly fall into the collection box 40 for collection after being cut by the wire cutter 32.

[0050] In some embodiments, the wire cutting mechanism 30 further includes a plurality of second wire wheels 33, which are spaced apart along the first direction to form a third wire harness channel 330 through which the wire harness can be passed; wherein the second wire wheels 33 and the first wire wheels 31 are respectively located on opposite sides of the wire cutting knife 32 along the second direction.

[0051] In this embodiment, when the wire length to be cut is long (i.e., the length of the wire bundle after cutting can extend to the second guide pulley 33), a second guide pulley 33 is added to guide the wire bundle passing through the wire cutter 32 to facilitate smooth cutting of the wire bundle. The distance between the second guide pulley 33 and the wire cutter 32 can be adjusted based on the material of the wire bundle and actual production conditions.

[0052] Furthermore, the first guide wheel 31 and the second guide wheel 33 are also sleeved with a guide belt 34 .

[0053] In this embodiment, the addition of a guide belt 34 effectively increases the friction between the wire pulley and the guided wire bundle, thereby guiding the wire bundle. Furthermore, the addition of the guide belt 34 reduces the crushing force on the stripping section of the wire bundle, thereby preventing deformation of the stripping section. For example, the first and second wire pulleys 31 and 32 can be rollers similar to the feed roller 11, or they can be configured with a guide belt 34 (e.g., a belt) mounted on a rotating gear.

[0054] See also Figures 4 and 5 As shown, Figure 4 The three-dimensional structure diagram of an embodiment of a wire cutting knife 32 of a wire cutting device provided by the present application is shown. Figure 1 ; Figure 5 FIG. 1 is a side view of an embodiment of a wire cutting knife 32 of a wire cutting device provided by the present application.

[0055] In some embodiments, combined Figure 4 As shown, the blades of the first blade 320 and the second blade 321 are in a triangular shape.

[0056] In the embodiment of the present application, the triangular design of the triangular first blade 320 and the second blade 321 makes the cut surface of the wire harness inclined at a certain angle, thereby facilitating the first blade 320 and the second blade 321 to cut the wire harness and increase the cutting speed.

[0057] In some embodiments, combined Figure 5As shown, the thread cutter 32 includes a first blade 320 and a second blade 321 , and the first blade 320 and the second blade 321 are alternately arranged along a first direction.

[0058] In the embodiment of the present application, since the wire harness is usually made of soft material and is easily deformed due to blade pressure during cutting, the first blade 320 and the second blade 321 are staggered, so that the first blade 320 and the second blade 321 can cut the wire harness at a certain staggered angle along both sides of the wire harness, thereby effectively reducing burrs in the wire harness cutting and improving cutting efficiency.

[0059] For example, the second blade 321 is connected to a drive device that drives the second blade 321 to move in a first direction toward the first blade 320. The first blade 320 holds the second blade 321 in place, and the second blade 321 moves toward the first blade 320 to perform the cutting. This allows precise control of the cutting position of the wire harness by simply controlling the second blade 321, reducing process complexity.

[0060] See also Figure 6 As shown, Figure 6 The three-dimensional structure diagram of an embodiment of a wire cutting knife 32 of a wire cutting device provided by the present application is shown. Figure 2 .

[0061] In some embodiments, the wire cutter 32 includes a first blade 320 and a second blade 321, which are spaced apart along a first direction, wherein the first blade 320 and the second blade 321 can be displaced along the first direction so that the first blade 320 and the second blade 321 can fit together.

[0062] In the embodiment of the present application, the first blade 320 and the second blade 321 that can fit together are used, that is, the interface between the first blade 320 and the second blade 321 is a plane, so that the cutting position of the wire harness can be more accurately located and is suitable for cutting wire harnesses made of relatively hard materials.

[0063] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, should be included in the protection scope of the present invention.

Claims

1. A wire cutting device, characterized in that: include: A feeding end, wherein the feeding end is provided with a plurality of feeding rollers, and the plurality of feeding rollers are symmetrically arranged along a first direction to form a first wire harness channel capable of passing the wire harness; a wire stripping mechanism, the wire stripping mechanism being arranged corresponding to the wire harness channel along the second direction, wherein the wire stripping mechanism is provided with a rotary cutter on a side away from the feeding end along the second direction; A wire cutting mechanism, the wire cutting mechanism is located along the second direction on the side of the wire stripping mechanism away from the feeding end, wherein the wire cutting mechanism includes a plurality of first wire wheels and a wire cutting knife, the plurality of first wire wheels are symmetrically arranged along the first direction to form a second wire harness channel through which the wire harness can be passed, and the wire cutting knife is arranged corresponding to the second wire harness channel.

2. The wire cutting device according to claim 1, characterized in that: The wire cutting mechanism further includes a plurality of second wire pulleys, which are spaced apart along the first direction to form a third wire harness channel through which the wire harness can pass; wherein the second wire pulleys and the first wire pulley are respectively located on opposite sides of the wire cutting knife along the second direction.

3. The wire cutting device according to claim 2, characterized in that: The first guide wheel and the second guide wheel are also sleeved with guide belts.

4. The wire cutting device according to claim 1, wherein: The wire cutter includes a first blade and a second blade, wherein the first blade and the second blade are alternately arranged along the first direction.

5. The wire cutting device according to claim 4, characterized in that: The second blade is connected to a driving device, and the driving device is used to drive the second blade to move toward the first blade along the first direction.

6. The wire cutting device according to claim 4, characterized in that: The blades of the first blade and the second blade are in a triangular shape.

7. The wire cutting device according to claim 1, characterized in that The wire cutter includes a first blade and a second blade, wherein the first blade and the second blade are spaced apart along the first direction, wherein the first blade and the second blade are displaceable along the first direction so that the first blade and the second blade can fit together.

8. The wire cutting device according to claim 1, wherein: The wire stripping mechanism further includes a wire threading hole corresponding to the first wire harness channel, wherein the rotary cutter includes a plurality of rotating blades circumferentially arranged around the wire threading hole.

9. The wire cutting device according to claim 8, characterized in that: The wire stripping mechanism further includes a wire stripping plate having a hollow space, wherein a plurality of rotary cutters are located in the hollow space, wherein the rotary cutters can extend along the hollow space to the wire threading hole, or retract into the hollow space.

10. The wire cutting device according to claim 1, wherein: The wire cutting device further includes a material collecting box, which is located below the wire cutting knife along the first direction.

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