Cable tie cutting apparatus

Abstract

A cable tie cutting apparatus, used for tightening and cutting a cable tie. The cable tie comprises a cable tie buckle and a cable tie body. The cable tie body has one end connected to the cable tie buckle, and the other end passing through the cable tie buckle. The cable tie cutting apparatus comprises a guiding support (100), a cutting assembly (200), and a clamping assembly (300). The cutting assembly is capable of simultaneously abutting against the cable tie buckle and allowing one end of the cable tie body to pass through a cutting slit of the cutting assembly. The clamping assembly is capable of receiving the cable tie body passing through the cutting slit and driving the cable tie body to move in a first direction so as to tighten the cable tie. When the cable tie body moves by a certain distance in the first direction, the clamping assembly is capable of driving the cutting assembly to cut off the portion of the cable tie body extending out of the cable tie buckle. The cable tie cutting apparatus is capable of directly cutting the cable tie after automatically tightening the cable tie, thereby reducing manual effort while ensuring consistency in tightness of the cable tie and flatness of the cut.

Description

Strap cutting device TECHNICAL FIELD

[0001] The present application relates to the technical field of strapping machines, in particular to a strap cutting device. BACKGROUND

[0002] In the related art, straps are usually used to tighten hoses, fix lines, etc.; and in the production process, workers usually use a strap gun to tighten the strap and cut the excess part of the strap. In the above process, since the two processes of tightening and cutting the strap by the strap gun need to be driven by manual operation, long-time operation of the strap gun to tighten and cut the strap not only easily causes hand fatigue, but also easily affects the tightening degree and the flatness of the cutting. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a strap cutting device which can directly cut the strap after automatically tightening the strap, thereby reducing the labor consumption while ensuring the consistency of the tightening degree and the flatness of the cutting.

[0004] The strap cutting device according to the first aspect of the present application is used to tighten and cut a strap, the strap comprising a strap buckle and a strap body, one end of the strap body being connected to the strap buckle and the other end passing through the strap buckle, and comprising:

[0005] a guide bracket;

[0006] a cutting assembly, the cutting assembly comprising a first cutting member and a second cutting member; the first cutting member comprising a first cutting part and a first cutting body, the first cutting body being rotationally connected to the guide bracket, and the first cutting part being connected to the first cutting body; the second cutting member comprising a second cutting part and a second cutting body, the second cutting body being connected to the guide bracket, and the second cutting part being connected to the second cutting body; the first cutting part and the second cutting part being arranged in sequence along a second direction and defining a cutting gap;

[0007] The clamping assembly comprises a moving piece, a traction piece, a clamping piece, a first elastic piece and a second elastic piece; the moving piece has a standby position and a cutting position, the standby position and the cutting position are arranged along a first direction, the first direction is perpendicular to a second direction; the moving piece is slidingly connected to the guide support and can slide along the first direction from the standby position to the cutting position relative to the guide support, the first cutting body is drivingly connected to the moving piece; the first elastic piece extends along the first direction, one end of the first elastic piece is connected to the guide support, the other end of the first elastic piece is connected to the moving piece, the first elastic piece can provide an elastic force in the opposite direction of the first direction to the moving piece; the clamping piece and the traction piece are arranged along the second direction and are located on one side of the first cutting part and the second cutting part in the first direction; the clamping piece is rotationally connected to the moving piece, the rotation axis of the clamping piece relative to the moving piece is a first rotation axis, the first rotation axis is parallel to a third direction, the first direction, the second direction and the third direction are perpendicular to each other; the clamping piece has a clamping surface, the clamping surface is inclined relative to the first direction and faces the cutting slot; the second elastic piece is located on one side of the first rotation axis in the first direction, the end of the second elastic piece facing the opposite direction of the second direction is connected to the moving piece, the other end of the second elastic piece facing the second direction abuts against the clamping piece; the traction piece is movably connected to the guide support, the traction piece has a traction surface, the traction surface is arranged relative to the clamping surface and is located on one side of the cutting slot in the second direction.

[0008] When the moving piece is located at the standby position, the first cutting part and the second cutting part can simultaneously abut against the cable tie buckle, one end of the cable tie body passing through the cable tie buckle can pass through the cutting slot and enter between the clamping surface and the traction surface in the first direction after passing through the cutting slot, and abut against the clamping surface and the traction surface; the second elastic piece continuously pushes the clamping piece close to the traction piece and makes the part of the cable tie body abutting against the clamping surface continuously adhere to the traction surface, the traction piece can drive the part of the cable tie body abutting against the clamping piece to continue moving in the first direction; after a part of the cable tie body of a preset length enters the cutting slot, the traction piece can drive the clamping piece to move along the first direction through the cable tie body, thereby driving the moving piece to move along the first direction, making the moving piece move from the standby position to the cutting position, the moving piece drives the first cutting body to rotate relative to the guide support, and the first cutting part approaches the second cutting part and closes the cutting slot.

[0009] According to the cable tie cutting device, when the cable tie needs to be pulled tight and cut, a worker can insert the cable tie body through one end of the cable tie buckle from the cutting slot to between the clamping surface and the traction surface, and make the cable tie buckle abut against the first cutting part and the second cutting part at the same time; the second elastic member connected to the moving member pushes the clamping member, so that the clamping surface pushes the cable tie body in the second direction to make the cable tie body partially adhere to the traction surface, and the traction member can drive the part of the cable tie body adhering to the traction member to move in the first direction, so that the whole cable tie is gradually pulled tight. During the process of pulling the cable tie tight, since the cable tie buckle abuts against the first cutting part and the second cutting part, the cable tie buckle can exert a gradually increasing traction force on the cable tie body in the length direction of the cable tie body; the part of the cable tie body passing through the cable tie buckle is gradually tightened, so that the contact area between the cable tie body and the clamping member gradually increases, until the cable tie body generates sufficient friction force on the clamping member to drive the clamping member and the moving member to overcome the elastic force of the first elastic member and move in the first direction; when the moving member moves from the standby position to the cutting position, the moving member can drive the first cutting body to rotate relative to the guide member through the transmission connection with the first cutting body, so that the first cutting part approaches the second cutting part, the cutting slot is closed and the cable tie body is cut off. During the above process, the cable tie cutting device can automatically pull the cable tie tight and cut the part of the cable tie body passing through the cable tie buckle, ensuring the consistency of the pulling tight degree and the cutting flatness of the cable tie; the worker only needs to insert the cable tie body through one end of the cable tie buckle into the cutting slot and between the clamping surface and the traction surface, and make the cable tie buckle abut against the first cutting part and the second cutting part at the same time, so that the operation burden is greatly reduced.

[0010] According to some embodiments of the present application, the clamping assembly further comprises an adjusting member connected to the guide support, one end of the first elastic member is connected to the adjusting member, and the other end of the first elastic member is connected to the moving member; the adjusting member can move relative to the guide support in the first direction and the opposite direction of the first direction, and remains relatively stationary with the guide support during the movement of the moving member from the standby position to the cutting position.

[0011] According to some embodiments of the present application, one side of the cable tie body in the thickness direction has a tooth-shaped structure; the traction member extends in the first direction and is rotationally connected to the guide support; the rotation axis of the traction member relative to the guide support is a second rotation axis, which is parallel to the first direction; the traction member comprises a threaded portion extending in the first direction and arranged around the second rotation axis; the threaded portion has the traction surface and can engage with the tooth-shaped structure of the cable tie body.

[0012] According to some embodiments of the present application, the guide bracket has a receiving channel extending along the first direction, the receiving channel has a receiving opening at an end of the receiving channel opposite to the first direction, the receiving opening is in communication with the cutting slot; the strap body enters the receiving opening after passing through the cutting slot, and then enters between the clamping surface and the pulling surface, the receiving channel can limit the movement of the strap body along the third direction and the third direction opposite to the third direction, and the part of the strap body attached to the pulling surface is separated from the receiving channel when the moving member moves to the cutting position.

[0013] According to some embodiments of the present application, the strap cutting device further comprises a collection bin connected to the guide bracket, the collection bin has a containing cavity; the receiving channel is in communication with the containing cavity at the end of the first direction.

[0014] According to some embodiments of the present application, the collection bin is connected to one side of the guide bracket in the third direction, the guide bracket further has a collection channel extending along the third direction, one end of the collection channel is in communication with the end of the receiving channel in the first direction, and the other end of the collection channel is in communication with the containing cavity.

[0015] According to some embodiments of the present application, the guide bracket further has a guide channel extending along the first direction, one end of the guide channel is in communication with the cutting slot, and the other end of the guide channel is in communication with the receiving opening; the area of the cross section of the inner wall of the guide channel perpendicular to the first direction gradually decreases along the first direction, and the guide channel is used for guiding the strap body.

[0016] According to some embodiments of the present application, the first cutting body has a third rotation axis relative to the rotation axis of the guide bracket, the first cutting part is located on one side of the third rotation axis opposite to the first direction; the first cutting body has a jacking surface, the jacking surface is inclined to the second direction and faces the moving member, and the jacking surface is located on one side of the third rotation axis in the first direction; the moving member pushes the jacking surface during the movement of the moving member to the cutting position, and drives the first cutting body to rotate relative to the guide bracket.

[0017] According to some embodiments of the present application, the first cutting body has a third rotation axis relative to the rotation axis of the guide support, the cable cutting device comprises a third elastic member connected to the guide support and located on one side of the third rotation axis in the first direction, the third elastic member abuts against the first cutting body and can apply an elastic force to the first cutting body towards the second direction; the first cutting body further has a limiting plane, the limiting plane faces the second direction; the moving member comprises a limiting portion, the limiting portion is located on one side of the third rotation axis in the first direction, and the limiting portion abuts against the limiting plane when the moving member is in the standby position.

[0018] According to some embodiments of the present application, the first cutting body further has a limiting plane, the limiting plane faces the second direction and is located on one side of the third rotation axis in the first direction; the jacking surface is smoothly connected to one side of the limiting plane in the first direction, and the moving member abuts against the limiting plane when the moving member is in the standby position; during the movement from the standby position to the cutting position, the moving member abutting against the limiting plane transitions to abutting against the jacking surface.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described with reference to the drawings and embodiments, wherein:

[0021] Fig. 1 is a schematic diagram of the overall cable cutting device according to some embodiments of the present application;

[0022] Fig. 2 is a schematic diagram of the structure of the handle and the guide support according to some embodiments of the present application;

[0023] Fig. 3 is a schematic diagram of the handle and the guide support according to some embodiments of the present application;

[0024] Fig. 4 is a side view of Fig. 3;

[0025] Fig. 5 is a schematic diagram of a partial enlarged view of C in Fig. 4;

[0026] Fig. 6 is a side view of the handle and the guide support according to some other embodiments of the present application;

[0027] Fig. 7 is a schematic diagram of a cross-sectional view formed in a direction perpendicular to the left-right direction in Fig. 1;

[0028] Fig. 8 is a schematic diagram of a cross-sectional view formed in another direction perpendicular to the left-right direction in Fig. 1;

[0029] Fig. 9 is a cross-sectional view taken in the vertical direction in Fig. 1.

[0030] Reference signs: handle 10, electric control switch 20, cable tie body 30; guide bracket 100, receiving channel 110, receiving opening 111, collection channel 120, guide channel 130; cutting assembly 200, first cutting piece 210, first cutting part 211, first cutting body 212, jacking surface 2121, limiting surface 2122, third rotation axis 2123, second cutting piece 220, second cutting part 221, second cutting body 222, cutting gap 230, rotation connecting piece 240; clamping assembly 300, moving piece 310, standby position A, cutting position B, limiting part 313, traction piece 320, traction surface 321, threaded part 322, second rotation axis 323, clamping piece 330, clamping surface 331, anti-skid groove 332, first rotation axis 333, first elastic piece 340, second elastic piece 350, adjusting piece 360; collection bin 400, containing cavity 410; third elastic piece 500. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are for the purpose of explaining the present application only and are not to be understood as limiting the present application.

[0032] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as limiting the present application, which indicates or implies that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0033] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0034] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0035] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description 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 appropriate manner in one or more embodiments or examples.

[0036] The following describes the strap cutting device of the present application by means of FIG. 1, FIG. 2, FIG. 3, FIG. 4, and FIG. 7, wherein FIG. 1, FIG. 2, FIG. 3, FIG. 4, and FIG. 7 do not show the strap. The present application proposes a strap cutting device for tightening and cutting the strap, the strap comprising a strap buckle and a strap body 30, one end of the strap body 30 being connected to the strap buckle, the other end passing through the strap buckle, comprising a guide support 100, a cutting assembly 200, and a clamping assembly 300.

[0037] Please refer to FIG. 1, FIG. 2, and FIG. 4, the cutting assembly 200 comprises a first cutting piece 210 and a second cutting piece 220; the first cutting piece 210 comprises a first cutting part 211 and a first cutting body 212, the first cutting body 212 being rotationally connected to the guide support 100, the first cutting part 211 being connected to the first cutting body 212; the second cutting piece 220 comprises a second cutting part 221 and a second cutting body 222, the second cutting body 222 being connected to the guide support 100, the second cutting part 221 being connected to the second cutting body 222; the first cutting part 211 and the second cutting part 221 are arranged in sequence along the second direction and define a cutting gap 230.

[0038] For the function of the cutting gap 230, specifically, according to some embodiments of the present application, the first cutting part 211 and the second cutting part 221 are arranged along the second direction (i.e. the lower direction in FIG. 1, FIG. 2, and FIG. 4), and the cutting gap 230 is defined between the first cutting part 211 and the second cutting part 221, the cutting gap 230 connecting the first direction side (i.e. the front side in FIG. 1, FIG. 2, and FIG. 4) and the reverse side of the first direction (i.e. the back side in FIG. 1, FIG. 2, and FIG. 4) of the first cutting part 211 and the second cutting part 221, and enabling the end of the strap body 30 passing through the strap buckle to pass along the first direction.

[0039] Please refer to FIG. 2, FIG. 3, FIG. 4, the clamping assembly 300 includes a moving piece 310, a traction piece 320, a clamping piece 330, a first elastic piece 340 and a second elastic piece 350; the moving piece 310 has a standby position A and a cutting position B, the standby position A and the cutting position B are arranged along a first direction, the first direction is perpendicular to a second direction; the moving piece 310 is slidingly connected to the guide support 100 and can slide along the first direction from the standby position A to the cutting position B relative to the guide support 100, and the first cutting body 212 is drivingly connected to the moving piece 310. The first elastic piece 340 extends along the first direction, one end of the first elastic piece 340 is connected to the guide support 100, and the other end of the first elastic piece 340 is connected to the moving piece 310, and the first elastic piece 340 can provide the moving piece 310 with an elastic force in the opposite direction of the first direction.

[0040] Since the first elastic piece 340 can exert an elastic force on the moving piece 310 in the opposite direction of the first direction, the moving piece 310 needs to overcome the elastic force exerted by the first elastic piece 340 during the movement from the standby position A to the cutting position B along the first direction. According to some embodiments of the present application, please refer to FIG. 2, FIG. 3, the first elastic piece 340 extends along the first direction (i.e. the front direction in FIG. 3), the rear end of the first elastic piece 340 is connected to the moving piece 310, and the front end of the first elastic piece 340 is connected to the guide support 100; the moving piece 310 will compress the first elastic piece 340 during the forward movement, so that the first elastic piece 340 exerts a backward elastic force on the moving piece 310. According to some other embodiments of the present application, the moving piece 310 will stretch the first elastic piece 340 during the forward movement, so that the first elastic piece 340 exerts a backward tensile force on the moving piece 310.

[0041] Please refer to FIG. 3, the clamping piece 330 and the traction piece 320 are arranged along the second direction and located on one side of the first cutting part 211 and the second cutting part 221 in the first direction.

[0042] It has been described above that the cutting slit 230 defined by the first cutting part 211 and the second cutting part 221 can allow the end of the strap body 30 to pass through the strap buckle along the first direction, and on the basis of the above-mentioned embodiments, since the clamping piece 330 and the traction piece 320 are located on one side of the first cutting part 211 and the second cutting part 221 in the first direction, the end of the strap body 30 passing through the cutting slit 230 can contact the clamping piece 330 and / or the traction piece 320.

[0043] Please refer to FIG. 3, FIG. 4, FIG. 5, the clamping piece 330 is rotationally connected to the moving piece 310, the rotation axis of the clamping piece 330 relative to the moving piece 310 is the first rotation axis 333, the first rotation axis 333 is parallel to the third direction, the first direction, the second direction and the third direction are perpendicular to each other; the clamping piece 330 has a clamping surface 331, the clamping surface 331 is inclined relative to the first direction and faces the cutting slit 230. The second elastic piece 350 is located on one side of the first rotation axis 333 in the first direction, the second elastic piece 350 is connected to the moving piece 310 at the end facing the second direction, and the other end of the second elastic piece 350 facing the second direction can abut against the clamping piece 330; the traction piece 320 is movably connected to the guide bracket 100, and the traction piece 320 has a traction surface 321, which is arranged relative to the clamping surface 331 and located on one side of the cutting slit 230 in the second direction.

[0044] When the second elastic piece 350 is compressed, it will continuously exert an elastic force on both ends. In the absence of external force, the clamping piece 330 abutting against one end of the second elastic piece 350 will be subjected to an elastic force in the second direction, thereby rotating around the first rotation axis 333, approaching the traction piece 320 located on the side of the clamping piece 330 in the second direction, and approaching the cutting slit 230. Because the clamping surface 331 is inclined relative to the first direction and faces the cutting slit 230, when the band body 30 continues to advance in the first direction after passing through the cutting slit 230 and contacts the clamping surface 331, the thrust of the band body 30 can overcome the elastic force of the second elastic piece 350 in the second direction, and drive the clamping piece 330 to rotate, so that the clamping surface 331 moves away from the traction piece 320 and the cutting slit 230.

[0045] Please refer to FIG. 4, FIG. 5, because the clamping surface 331 is inclined relative to the first direction and faces the cutting slit 230, and the traction surface 321 is located on one side of the cutting slit 230 in the second direction, the band body 30 can also be guided by the clamping surface 331 to bend in the second direction after contacting the clamping surface 331, and approach the traction piece 320.

[0046] Please refer to FIG. 2, FIG. 4, FIG. 7, when the moving piece 310 is located at the standby position A, the first cutting part 211 and the second cutting part 221 can simultaneously abut against the carabiner, and the end of the band body 30 passing through the carabiner can pass through the cutting slit 230 and enter between the clamping surface 331 and the traction surface 321 after passing through the cutting slit 230, and abut against the clamping surface 331 and the traction surface 321.

[0047] It should be noted that the present application does not limit the specific way that the strap body 30 enters between the clamping surface 331 and the traction surface 321 of the strap buckle. According to some embodiments of the present application, referring to FIG. 4 and FIG. 5, the strap body 30 can first abut against the clamping surface 331 and push the clamping piece 330 to move upward and forward around the first rotation axis 333, and expose the traction surface 321, so that the strap body 30 can abut against the clamping surface 331 and the traction surface 321 at the same time; according to other embodiments of the present application, referring to FIG. 6, the strap body 30 can first abut against the traction surface 321, and abut against the clamping surface 331 at the same time during the forward movement of the strap body 30.

[0048] Referring to FIG. 2, FIG. 4 and FIG. 7, the second elastic piece 350 continuously pushes the clamping piece 330 to approach the traction piece 320 and the part of the strap body 30 abutting against the clamping surface 331 continuously adheres to the traction surface 321, so that the traction piece 320 can drive the part of the strap body 30 abutting against the clamping piece 330 to continue moving in the first direction.

[0049] The present application drives the strap body 30 to move in the first direction by the traction surface 321 of the traction piece 320, so that more parts of the strap body 30 pass through the strap buckle and the strap is tightened. For the specific form of the traction surface 321 driving the strap body 30, according to some embodiments of the present application, referring to FIG. 4 and FIG. 5, the traction piece 320 extends in the first direction and is rotationally connected to the guide bracket 100, and the rotation axis of the traction piece 320 relative to the guide bracket 100 is the second rotation axis 323, which is parallel to the first direction; the traction piece 320 includes a threaded portion 322, which extends in the first direction and is arranged around the second rotation axis 323, and the threaded portion 322 has the traction surface 321 and can engage with the tooth-shaped structure of the strap body 30. When the traction piece 320 rotates around the second rotation axis 323, the traction surface 321 of the threaded portion 322 can drive the tooth-shaped structure in contact with the traction surface 321 to move forward in the first direction, thereby driving the strap body 30 to move forward. In the above-mentioned embodiments, the clamping plate continuously pushes the strap body 30 in the second direction, so that the tooth-shaped structure of the strap body 30 can be stably driven by the traction force of the traction surface 321 and move forward in the first direction, and the part of the strap body 30 between the first cutting portion 211 and the traction piece 320 is bent in the second direction and engages with the traction piece 320, so that the traction surface 321 can continuously pull the strap body 30 in the first direction.

[0050] It should be noted that the traction surface 321 in the present application should be the part of the surface of the threaded portion 322 that can engage with the toothed structure of the strap body 30 in the second direction, rather than all the surface of the threaded portion 322. Specifically, referring to FIG. 5, according to some embodiments of the present application, after the part of the strap body 30 that was originally pushed by the clamping piece 330 in the second direction is no longer affected by the clamping piece 330, the internal stress between the parts of the strap body 30 can cause the part of the strap body 30 that was originally pushed by the clamping piece 330 to move away from the threaded portion 322, and the threaded portion 322 can no longer apply a pushing force in the first direction to the part of the strap body 30.

[0051] According to some other embodiments of the present application, referring to FIG. 6, the traction piece 320 adopts a conveyor belt structure, and the surface of the conveyor belt that faces the second direction forms the traction surface 321; when the conveyor belt rotates clockwise, the traction surface 321 can continuously drive the strap body 30 to move in the first direction by friction, and in the above-mentioned embodiments, the clamping plate continuously pushes the strap body 30 in the second direction, so that the strap body 30 can be subjected to sufficient friction from the traction surface 321 and move in the first direction.

[0052] Without departing from the inventive concept of the present application, those skilled in the art can also use other structural forms to achieve the driving of the strap body 30 by the traction surface 321. According to some other embodiments of the present application, referring to FIG. 6, the traction piece 320 adopts a conveyor belt structure, and the teeth that can engage with the toothed structure on the strap body 30 are uniformly arranged on the circumferential direction of the conveyor belt structure, so that when the conveyor belt rotates clockwise, the teeth on the conveyor belt structure can drive the strap body 30 to move in the first direction.

[0053] As to the power source of the traction piece 320, since the traction piece 320 only needs to work continuously to drive the strap body 30, without departing from the inventive concept of the present application, the strap cutting device can use electricity, gas, hydraulic pressure, etc. to drive the traction piece 320, so as to realize the automatic operation of the traction piece 320. In some embodiments, referring to FIGS. 1 and 2, the strap cutting device further comprises a handle 10 and an electric control switch 20, wherein the handle 10 is internally provided with a power supply and a motor, the power supply, the electric control switch 20 and the motor are electrically connected with each other, and the motor is used to drive the traction piece 320, and the worker can control the electric control switch 20 to start or stop the motor to drive the traction piece 320. Compared with other driving forms, using electricity to drive the traction piece 320 is more conducive to the lightweight of the strap cutting device and facilitates the use of the worker.

[0054] As mentioned above, the traction member 320 can continuously pull the strap body 30 along the first direction through the traction surface 321. After a portion of the pre-set length of the strap body 30 enters the cutting slot 230, the traction member 320 can pull the clamping member 330 along the first direction through the strap body 30, thereby pulling the moving member 310 along the first direction, so that the moving member 310 moves from the standby position A to the cutting position B. The moving member 310 drives the first cutting body 212 to rotate relative to the guide support 100, and the first cutting body 211 approaches the second cutting body 221 and closes the cutting slot 230.

[0055] As shown in FIG. 5, for the strap that needs to be tightened to a certain extent, since the strap buckle abuts against the first cutting body 211 and the second cutting body 221, the strap body 30 will make more portions of the strap body 30 pass through the strap buckle when the strap body 30 moves along the first direction, so that the strap is gradually tightened. The end of the strap body 30 close to the strap buckle will generate a gradually increasing traction force on the portions of the strap body 30 passing through the strap buckle. The combined action of the traction force generated by the strap body 30, the pressure of the clamping member 330 and the force of the traction member 320 will make the portions between the cutting slot 230 and the clamping member 330 (i.e. the portions between the position where the clamping member 330 presses the strap body 30 in FIG. 5 and the cutting slot 230) gradually straighten. The portions will move along the second direction in reverse, thereby gradually increasing the contact area between the portions and the clamping surface 331, and gradually increasing the friction force of the portions on the clamping member 330, and gradually increasing the component of the friction force along the first direction.

[0056] For the treatment of the surface of the clamping surface 331, a skilled person in the art can provide anti-skid lines on the clamping surface 331 to increase the friction force of the clamping surface 331 on the strap body 30. As a preferred solution, as shown in FIG. 5, in some embodiments, the clamping member 330 has a plurality of anti-skid grooves 332, which extend along the third direction and are provided on the clamping surface 331. The above solution increases the roughness of the clamping surface 331, and when the strap body 30 deforms itself and enters the anti-skid grooves 332, the inner walls of the anti-skid grooves 332 can also exert a force along the first direction on the strap body 30, thereby avoiding the reverse movement of the strap body 30 along the first direction.

[0057] As mentioned above, the mobile member 310 needs to overcome the elastic force exerted by the first elastic member 340 during the movement from the standby position A to the cutting position B in the first direction. After a portion of the strap body 30 pre-set length enters the cutting slot 230, the strap has been pulled to a certain extent; the frictional force exerted by the strap body 30 on the clamping member 330 can overcome the elastic force of the first elastic member 340, and the mobile member 310 starts to move from the standby position A to the cutting position B in the first direction. During the movement of the mobile member 310 from the standby position A to the cutting position B, the clamping member 330 connected to the mobile member 310 continuously pushes the strap body 30 in the second direction, and the strap body 30 is continuously moved in the first direction under the influence of the clamping member 330 and the traction member 320, so that the strap is further pulled to a pre-set extent; at the same time, the mobile member 310 drives the first cutting body 212 to rotate through the transmission connection with the first cutting body 212, and the first cutting part 211 connected to the first cutting body 212 rotates together.

[0058] Without departing from the inventive concept of the present application, the person skilled in the art can reasonably assume the tension degree of the first elastic member 340 to adjust the elastic force that the mobile member 310 needs to overcome before moving in the first direction. As a preferred solution, please refer to FIG. 3, FIG. 4 and FIG. 7, in some embodiments, the clamping assembly 300 further comprises an adjusting member 360, the adjusting member 360 is connected to the guide support 100, one end of the first elastic member 340 is connected to the adjusting member 360, the other end of the first elastic member 340 is connected to the mobile member 310, and the adjusting member 360 can move relative to the guide support 100 in the first direction and the reverse direction of the first direction, and remains relatively stationary with the guide support 100 during the movement of the mobile member 310 from the standby position A to the cutting position B. The worker can move the adjusting member 360 relative to the guide support 100 in the first direction and the reverse direction of the first direction and synchronously increase or decrease the elastic force of the first elastic member 340, so as to adjust the tension degree of the strap cutting device to the strap. In some embodiments, the adjusting member 360 is threadedly connected to the guide support 100, and the worker can move the adjusting member 360 relative to the guide support 100 in the first direction and the reverse direction of the first direction by rotating the adjusting member 360. In other embodiments, the adjusting member 360 can be fixed relative to the guide support 100 by a pin, and the worker can move the adjusting member 360 relative to the guide support 100 in the first direction and the reverse direction of the first direction by pulling out the pin.

[0059] When the mobile member 310 moves to the cutting position B, the first cutting part 211 contacts the second cutting part 221 and closes the cutting slot 230, and the portion of the strap body 30 extending out of the strap buckle is cut by the first cutting part 211 and the second cutting part 221.

[0060] The moving part 310 adjusts the rotating position of the first cutting part 211 through the transmission connection relationship with the first cutting body 212, and finally closes the cutting slit 230. Without departing from the inventive concept of the present application, the present application does not limit the transmission connection relationship between the moving part 310 and the first cutting body 212, and those skilled in the art can realize the transmission of the moving part 310 to the first cutting body 212 by combining the commonly used technical means in the art.

[0061] In particular, as a preferred scheme of the transmission connection between the first cutting body 212 and the moving part 310, in some embodiments, referring to FIGS. 8 and 9, the first cutting body 212 is rotationally connected to the guide bracket 100 through a rotating connecting part 240, the rotating axis of the first cutting body 212 relative to the guide bracket 100 is a third rotating axis 2123, and the third rotating axis 2123 is in the rotating connecting part 240; the first cutting part 211 is located on the side of the third rotating axis 2123 in the reverse direction of the first direction; the first cutting body 212 has a jacking surface 2121, the jacking surface 2121 faces the moving part 310 and is inclined to the second direction, and the jacking surface 2121 is located on the side of the third rotating axis 2123 in the first direction; the moving part 310 pushes the jacking surface 2121 during moving to the cutting position B, and drives the first cutting body 212 to rotate relative to the guide bracket 100. During moving to the cutting position B, the moving part 310 exerts a supporting force on the jacking surface 2121 of the first cutting body 212, and since the jacking surface 2121 is inclined to the second direction, the supporting force on the first cutting body 212 includes a component in the reverse direction of the second direction, so that the jacking surface 2121 of the first cutting body 212 moves in the reverse direction of the second direction, the first cutting part 211 moves in the second direction and approaches the second cutting part 221, and finally the cutting slit 230 is closed. The above embodiment directly realizes the movement of the first cutting part 211 through the supporting action of the moving part 310 on the first cutting body 212, and the structure is simpler, which is conducive to reducing the production cost.

[0062] The above has completely described the process of tightening and cutting the cable tie by the cable tie cutting device. In the above process, the cable tie cutting device can automatically tighten the cable tie and cut the part of the cable tie body 30 that passes through the cable tie buckle, ensuring the consistency of the tightening degree and the cutting flatness of the cable tie; the operator only needs to insert one end of the cable tie body 30 passing through the cable tie buckle into the cutting slit 230 and between the clamping surface 331 and the traction surface 321, and make the cable tie buckle abut against the first cutting part 211 and the second cutting part 221 at the same time, so that the operation burden is greatly reduced.

[0063] On the basis of the above scheme, other improvements can also be made to the cable tie cutting device.

[0064] Further, referring to FIGS. 8 and 9, in some embodiments, the first cutting body 212 has a third rotation axis 2123 relative to the guide bracket 100, and the strap cutting device comprises a third elastic member 500 connected to the guide bracket 100 and located on one side of the third rotation axis 2123 in the reverse direction of the first direction, the third elastic member 500 abuts against the first cutting body 212 and can exert an elastic force on the first cutting body 212 towards the reverse direction of the second direction; the first cutting body 212 further has a limiting plane 2122 facing the second direction; the moving member 310 comprises a limiting portion 313 located on one side of the third rotation axis 2123 in the first direction, and the limiting portion 313 abuts against the limiting plane 2122 when the moving member 310 is in the standby position A. The above-mentioned embodiments can exert an elastic force on the first cutting body 212 by the third elastic member 500 when the moving member 310 is in the standby position A, so as to avoid the first cutting portion 211 directly contacting the second cutting portion 221 and closing the cutting gap 230 without other external force, thereby avoiding that the strap body 30 cannot pass through the cutting gap 230; on the other hand, the limiting portion 313 of the moving member 310 can abut against the limiting plane 2122, so as to control the opening degree of the cutting gap 230 and ensure that the buckle can abut against the first cutting portion 211 and the second cutting portion 221 at the same time.

[0065] The first cutting part 211 is moved by the moving piece 310 supporting the lifting surface 2121 as described above. Based on the above scheme, referring to FIGS. 2, 7, and 8, the first cutting part 212 further has a limiting plane 2122 facing the second direction and located on one side of the third rotation axis 2123 in the first direction; the lifting surface 2121 is smoothly connected to one side of the limiting plane 2122 in the first direction; the moving piece 310 abuts against the limiting plane 2122 when in the standby position; during movement from the standby position A to the cutting position B, the moving piece 310 abutting against the limiting plane 2122 transitions to abut against the lifting surface 2121. Through the above scheme, during movement of the moving piece 310 from the standby position A to the cutting position B, i.e., before the first cutting part 211 and the second cutting part 221 cut the strap body 30, the opening degree of the cutting slit 230 will be limited by the limiting plane 2122 and will not increase, ensuring that the buckle can stably abut against the first cutting part 211 and the second cutting part 221 during cutting. On the other hand, during movement in the first direction, the moving piece 310 will abut against the limiting plane 2122 and the lifting surface 2121 in turn, finally pushing the lifting surface 2121 and driving the first cutting part 212 to rotate relative to the guide bracket 100; the strap cutting device can change the contact position of the moving piece 310 and the first cutting part 212 by movement of the moving piece 310 in the first direction, so that the moving piece 310 can adjust the posture of the first cutting part 212 during movement in the first direction, thereby adjusting the opening size of the cutting slit 230, and realizing the cutting function of the strap cutting device on the strap body 30.

[0066] Further, referring to FIGS. 7 and 9, in some embodiments, the guide bracket 100 has a receiving channel 110 extending in the first direction, the receiving channel 110 having a receiving opening 111 at an end opposite to the first direction, the receiving opening 111 being communicated with the cutting slit 230; the strap body 30 enters the receiving opening 111 after passing through the cutting slit 230, and then enters between the clamping surface 331 and the traction surface 321, the receiving channel 110 being capable of limiting movement of the strap body 30 in the third direction and the third direction opposite thereto, and when the moving piece 310 moves to the cutting position B, the part of the strap body 30 attached to the traction surface 321 is separated from the receiving channel 110. The receiving channel 110 of the above embodiment can limit movement of the strap body 30 in the third direction and the third direction opposite thereto by the inner wall, thereby ensuring that the strap body 30 will not be separated from between the clamping piece 330 and the traction piece 320 during traction of the strap body 30 by the traction piece 320.

[0067] Further, in some embodiments, the cable cutting device further comprises a collection bin 400 connected to the guide support 100, the collection bin 400 having a receiving cavity 410, and the receiving channel 110 is communicated with the receiving cavity 410 at the end in the first direction. Through the above scheme, the receiving cavity 410 can collect the part of the cable body 30 after being separated from the receiving channel 110, avoiding the cut cable body 30 from escaping from the cable cutting device and causing pollution to the working environment.

[0068] Please refer to FIG. 1 and FIG. 9, as a preferred scheme, in some embodiments, the collection bin 400 is connected to the guide support 100 on one side in the third direction, and the guide support 100 further has a collection channel 120 extending along the third direction, one end of the collection channel 120 is communicated with the end of the receiving channel 110 in the first direction, and the other end of the collection channel 120 is communicated with the receiving cavity 410. The collection channel 120 can receive the cable body 30 from the receiving channel 110, and the cable body 30 can be guided by the inner wall of the collection channel 120 to enter the receiving cavity 410. The collection channel 120 can change the transportation direction of the cable body 30, so that the collection bin 400 can be arranged on one side of the receiving channel 110 in the third direction, thereby reducing the occupied space of the cable cutting device in the first direction and the second direction.

[0069] Please refer to FIG. 9, further, in some embodiments, the guide support 100 further has a guide channel 130 extending along the first direction, one end of the guide channel 130 is communicated with the cutting slot 230, and the other end of the guide channel 130 is communicated with the receiving opening 111; the area of the cross section of the inner wall of the guide channel 130 perpendicular to the first direction gradually decreases along the first direction, and the guide channel 130 is used for guiding the cable body 30. The guiding effect of the guide channel 130 on the cable body 30 can make the end of the cable body 30 more easily enter between the clamping piece 330 and the traction piece 320, thereby facilitating the operation of the worker. On the other hand, the extension length of the cutting slot 230 in the third direction and the reverse direction of the third direction can also be adjusted according to the maximum distance of the guide channel 130 in the third direction, so that one end of the cable body 30 is more easily entered into the cutting slot 230.

[0070] The above describes the embodiments of the present application in detail in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A cable cutting apparatus, characterized by, A device for tensioning and cutting a strap, the strap comprising a strap buckle and a strap body, one end of the strap body being connected to the strap buckle and the other end passing through the strap buckle, comprising: a guide support; a cutting assembly, the cutting assembly comprising a first cutting member and a second cutting member; the first cutting member comprising a first cutting part and a first cutting body, the first cutting body being rotatably connected to the guide support, the first cutting part being connected to the first cutting body; the second cutting member comprising a second cutting part and a second cutting body, the second cutting body being connected to the guide support, the second cutting part being connected to the second cutting body; the first cutting part and the second cutting part being arranged in sequence along a second direction and defining a cutting gap; a clamping assembly, the clamping assembly comprising a moving member, a traction member, a clamping member, a first elastic member and a second elastic member; the moving member having a standby position and a cutting position, the standby position and the cutting position being arranged along a first direction, the first direction being perpendicular to the second direction; the moving member being slidingly connected to the guide support and being capable of sliding from the standby position to the cutting position along the first direction relative to the guide support, the first cutting body being drivingly connected to the moving member; the first elastic member extending along the first direction, one end of the first elastic member being connected to the guide support, the other end of the first elastic member being connected to the moving member, the first elastic member being capable of providing an elastic force in the opposite direction of the first direction to the moving member; the clamping member and the traction member being arranged along the second direction and being located on one side of the first cutting part and the second cutting part in the first direction; the clamping member being rotatably connected to the moving member, the rotation axis of the clamping member relative to the moving member being a first rotation axis, the first rotation axis being parallel to a third direction, the first direction, the second direction and the third direction being perpendicular to each other; the clamping member having a clamping surface, the clamping surface being inclined relative to the first direction and facing the cutting gap; the second elastic member being located on one side of the first rotation axis in the first direction, one end of the second elastic member facing the opposite direction of the second direction being connected to the moving member, the other end of the second elastic member facing the second direction abutting against the clamping member; the traction member being movably connected to the guide support, the traction member having a traction surface, the traction surface being arranged relative to the clamping surface and being located on one side of the cutting gap in the second direction. When the moving member is in the standby position, the first cutting part and the second cutting part can simultaneously abut against the cable tie buckle, one end of the cable tie body passing through the cable tie buckle can pass through the cutting slot and enter between the clamping surface and the traction surface after passing through the cutting slot, and abut against the clamping surface and the traction surface; the second elastic member continuously pushes the clamping member close to the traction member and makes the part of the cable tie body abutting against the clamping surface continuously adhere to the traction surface, and the traction member can drive the part of the cable tie body abutting against the clamping member to continue moving in the first direction; after a part of the preset length of the cable tie body enters the cutting slot, the traction member can drive the clamping member to move in the first direction through the cable tie body, thereby driving the moving member to move in the first direction, so that the moving member moves from the standby position to the cutting position, the moving member drives the first cutting body to rotate relative to the guide support, and the first cutting part is close to the second cutting part and closes the cutting slot.

2. The cable cutting apparatus of claim 1, wherein, The clamping assembly further comprises an adjusting member connected to the guide support, one end of the first elastic member is connected to the adjusting member, and the other end of the first elastic member is connected to the moving member; the adjusting member can move relative to the guide support in the first direction and the reverse direction of the first direction, and remains relatively stationary with the guide support during the movement of the moving member from the standby position to the cutting position.

3. The tie band cutting apparatus according to claim 1, wherein one side of the tie band body in the thickness direction has a toothed structure. The traction member extends and rotates in the first direction and is connected to the guide support, the rotation axis of the traction member relative to the guide support is a second rotation axis, and the second rotation axis is parallel to the first direction; the traction member comprises a threaded portion, the threaded portion extends in the first direction and is arranged around the second rotation axis, the threaded portion has the traction surface and can be engaged with the toothed structure of the cable tie body.

4. The tie strip cutting apparatus of claim 1, wherein, The guide support has a receiving channel extending in the first direction, and the receiving channel has a receiving opening at an end in the reverse direction of the first direction, and the receiving opening is communicated with the cutting slot; After the cable tie body passes through the cutting slot, it enters the receiving opening and then enters between the clamping surface and the traction surface, the receiving channel can limit the movement of the cable tie body in the third direction and the reverse direction of the third direction, and the part of the cable tie body adhering to the traction surface is separated from the receiving channel when the moving member moves to the cutting position.

5. The cable cutting apparatus of claim 4, wherein, The cable tie cutting device further comprises a collection bin connected to the guide support, and the collection bin has a containing cavity; the receiving channel is communicated with the containing cavity at the end in the first direction.

6. The cable cutting apparatus of claim 5, wherein, The collection bin is connected to one side of the guide support in the third direction, and the guide support further has a collection channel extending in the third direction; one end of the collection channel is communicated with the end of the receiving channel in the first direction, and the other end of the collection channel is communicated with the containing cavity.

7. The cable cutting apparatus of claim 4, wherein, The guide support further has a guide channel extending along the first direction, one end of the guide channel being communicated with the cutting slot, and the other end of the guide channel being communicated with the receiving opening; an inner wall of the guide channel gradually decreases in area of a cross section perpendicular to the first direction along the first direction, and the guide channel is used for guiding the strap body.

8. The cable cutting apparatus of claim 1, wherein, The first cutting body has a third rotation axis relative to a rotation axis of the guide support, and the first cutting part is located on one side of the third rotation axis in the reverse direction of the first direction; the first cutting body has a jacking surface, the jacking surface is inclined to the second direction and faces the moving piece, and the jacking surface is located on one side of the third rotation axis in the first direction; the moving piece pushes the jacking surface during movement to the cutting position, and drives the first cutting body to rotate relative to the guide support.

9. The cable cutting apparatus of claim 1, wherein, The first cutting body has a third rotation axis relative to a rotation axis of the guide support, and the first cutting part is located on one side of the third rotation axis in the reverse direction of the first direction; the first cutting body has a third elastic piece connected to the guide support and located on one side of the third rotation axis in the reverse direction of the first direction, the third elastic piece abuts against the first cutting body and can exert an elastic force on the first cutting body towards the reverse direction of the second direction; the first cutting body further has a limiting surface facing the second direction; the moving piece includes a limiting part located on one side of the third rotation axis in the first direction, and the limiting part abuts against the limiting surface when the moving piece is in the standby position.

10. The cable cutting apparatus of claim 8, wherein, The first cutting body further has a limiting surface facing the second direction and located on one side of the third rotation axis in the first direction; the jacking surface is smoothly connected to one side of the limiting surface in the first direction, and the moving piece abuts against the limiting surface when the moving piece is in the standby position; during movement from the standby position to the cutting position, the moving piece abutting against the limiting surface transitions to abut against the jacking surface.

Images