Electric cable tie gun

Abstract

The invention discloses an electric cable tie gun which comprises a cable tie gun body, a tightness adjusting assembly, a shearing assembly, a tensioning assembly and a driving assembly, the shearing assembly is provided with a gun barrel, the tensioning assembly is provided with a pull rod shaft, and the driving assembly drives the tensioning assembly to move in the preset direction through the pull rod shaft to tension a cable tie. When the tensioning assembly moves to a preset stroke, the shearing assembly is driven to move to shear the cable tie; by the adoption of the method, the motion stroke of the gun barrel is controlled through the tightness adjusting assembly, the motion stroke of the shearing assembly is controlled so as to adapt to ribbons of different models, and different use requirements are met; the driving assembly drives the tensioning assembly to horizontally move through the pull rod shaft, the arrangement of the tightness adjusting assembly can prolong the length of the cable tie gun body, the movement stroke of the sliding support can be improved, the use experience feeling is ensured, meanwhile, tensioning and shearing of a cable tie are conducted in a linkage mode through the driving motor, redundant operation is not needed, and operation is simpler and more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable tie guns, in particular to an electric cable tie gun. BACKGROUND

[0002] A cable tie gun, also known as a cable tie tool or a cable tie tool, is a tool that uses mechanical principles to quickly install and tighten cable ties. After the user loads the cable tie into the gun body, the user aims at the object to be tied and triggers the internal mechanical structure by pulling the trigger. This action will quickly tighten and lock the cable tie on the object, and the excess cable tie part will be automatically cut off. The whole process usually only takes a few seconds, greatly improving work efficiency.

[0003] Among them, the Chinese authorized invention, the publication number CN211196723U, discloses a cutting mechanism suitable for cable tie gun, which comprises a cable tie gun body, a cylinder is arranged inside the cable tie gun body, the cylinder is connected with a cylinder rod, the cylinder rod is connected with a fixing frame, a cutter rod is further arranged inside the cylinder, a protruding plate and a cutting knife are arranged on the cutter rod, the protruding plate is connected with a tension spring, the tension spring is connected with a fixed plate, the cutter rod is connected with a pin shaft and connected on the cable tie gun body through the pin shaft, one end of the cutter rod is provided with a cutting knife, and the other end is provided with a protruding plate, the protruding plate is a cam structure, and the upper end of the protruding plate is higher than the lower end surface of the fixing frame in the horizontal direction. According to the specification and drawings, the cutting knife is lifted by the contact between the fixing frame and the protruding plate during movement, so as to cut the cable tie on the cutting knife, and the tension spring is used for resetting the cutting knife. Although this kind of way can realize the cutting of the cable tie, it cannot adjust the stroke of the cutting knife. Since the cable tie has different specifications according to different needs, the thickness is also different, and the hardness of the cable tie is also different. At this time, the cutting mechanism disclosed in the prior art cannot completely cut off due to the inability to adjust the stroke, which cannot meet the use requirement and affects the use.

[0004] Therefore, it is urgent to design an electric cable tie gun to solve one or more technical problems in the prior art. SUMMARY

[0005] The application adopts the technical scheme that a kind of electric ribbon gun is characterized by comprising: ribbon gun body, one end of the ribbon gun body is equipped with holding part, the ribbon gun body is connected with tension adjustment assembly away from one end equipped with the holding part, one end of the tension adjustment assembly away from the ribbon gun body is slidably equipped with shearing assembly, for shearing ribbon;The shearing assembly has barrel, the tension adjustment assembly can adjust the movement stroke of the barrel, one end of the barrel passes through the tension adjustment assembly and is located in the ribbon gun body, one end of the barrel located outside the ribbon gun body is slidably equipped with tensioning assembly, the tensioning assembly has pull rod shaft, one end of the pull rod shaft is equipped in the barrel and can slide relative to the barrel, the ribbon gun body is also equipped with driving assembly, one end of the pull rod shaft cooperates with the driving assembly, the driving assembly drives the tensioning assembly to move to predetermined direction and tension ribbon by the pull rod shaft, when the tensioning assembly moves to predetermined stroke, driving the shearing assembly to move and shear ribbon.

[0006] In a preferred embodiment, the driving assembly comprises: a mounting bracket fixedly arranged in the end of the ribbon gun body provided with the holding part, a sliding bracket slidably connected in the mounting bracket, a driving gear and a driven gear fixedly arranged in the middle part of the mounting bracket, the driving gear engaged with the driven gear, the driving gear and the driven gear also located in the middle part of the sliding bracket, the two surfaces of the sliding bracket towards the driving gear and the driven gear are in rack shape, one surface of the sliding bracket in rack shape engaged with the driving gear for transmission, the other surface of the sliding bracket in rack shape engaged with the driven gear for transmission, the sliding bracket is arranged in up-down staggered manner on the two sides, one end of the sliding bracket is provided with a bent part, the bent part located above the pull rod shaft, the tail end of the pull rod shaft is provided with a boss matched with the bent part, a driving motor is also arranged in the holding part, the output end of the driving motor fixedly connected with the driving gear.

[0007] In a preferred embodiment, the shearing assembly further comprises: a blade slidably arranged at the end of the barrel away from the ribbon gun body, a rotating member rotatably arranged in the end of the barrel provided with the blade, two extension parts arranged at a predetermined angle interval on the rotating member, the blade matched with one of the extension parts, a shearing push block slidably arranged at the bottom of the end of the barrel located outside the ribbon gun body, one end of the shearing push block clamped with the tension adjustment assembly, the other end matched with the other extension part, when the barrel slides along a predetermined direction relative to the tension adjustment assembly, the shearing push block drives the rotating member to rotate through the extension part, the rotating member drives the blade to rise or fall, the ribbon tensioning assembly slidably arranged in the end of the barrel located outside the ribbon gun body.

[0008] In a preferred embodiment, the tensioning assembly comprises a push-pull block, the pull rod shaft is fixedly connected to the push-pull block at an end away from the driving assembly, the push-pull block is provided with a locking block at the top of an end away from the pull rod shaft, the bottom of the locking block is rotationally connected to the push-pull block, the push-pull block is provided with a matching lug at a position corresponding to the locking block, the matching lug covers the top of the locking block, the cable passes between the locking block and the matching lug, and the locking block rotationally matches the matching lug to extrude the cable.

[0009] In a preferred embodiment, one side of the locking block facing the matching lug is further provided with a clamping tooth inclined to the direction in which the cable gun body is located, and the locking block is further provided with a torsional spring for continuously matching the locking block with the matching lug.

[0010] In a preferred embodiment, the gun barrel is provided with a guide sliding groove on each side of an end of the cable gun body, a guide sliding column is provided in the push-pull block, and the two ends of the guide column are located in the guide sliding grooves.

[0011] In a preferred embodiment, the tension adjustment assembly comprises a first sleeve and a second sleeve, one end of the first sleeve is provided with an adjustment part, the second sleeve is sleeved on the adjustment part, the first sleeve can rotate relative to the second sleeve, an adjustment pressing block is slidably arranged in the adjustment part, the adjustment pressing block is limitingly and slidably matched with the adjustment part, the adjustment pressing block is reciprocally moved in the adjustment part when the first sleeve rotates relative to the second sleeve, the first end of the gun barrel passes through the first sleeve and the second sleeve and can slide relative to the first sleeve and the second sleeve, a top block is further fixedly arranged on the outer side of the part of the gun barrel located in the first sleeve, and a resistance spring is arranged between the top block and the adjustment pressing block.

[0012] In a preferred embodiment, a spiral adjustment groove is arranged on the side wall of the adjustment part, an adjustment column is arranged on the outer side of the adjustment pressing block and is adapted to the adjustment groove, and the adjustment column can move along the adjustment groove; the inner side of the second sleeve is further provided with a guide groove, and the adjustment column passes through the adjustment groove and is located in the guide groove.

[0013] In a preferred embodiment, at least one limiting column is arranged on one end side of the second sleeve, a ring of limiting grooves is arranged on the outer side wall of the adjustment part, the limiting column is matched with the limiting groove to limit the disengagement of the second sleeve from the first sleeve; a plurality of feedback recesses are arranged at the end of the end of the adjustment part away from the first sleeve, at least one spring steel ball is arranged on the side of the second sleeve opposite to the feedback recesses, and the spring steel ball is located in the feedback recess.

[0014] In a preferred embodiment, the first sleeve is further fixedly connected with a second stroke limiting piece at one end away from the second sleeve, the barrel passes through the second stroke limiting piece and is slidable in the second stroke limiting piece, two limiting protrusions are arranged on the barrel at intervals, and the second stroke limiting piece is located between the two limiting protrusions.

[0015] The application has the beneficial effects that the movement stroke of the barrel is controlled through the tightness adjusting assembly, the movement stroke of the cutting assembly is controlled to adapt to different types of cable ties and meet different use requirements, the horizontal movement of the tensioning assembly is driven by the driving assembly through the pull rod shaft, the length of the cable tie gun body is prolonged and the movement stroke of the sliding support is improved through the arrangement of the tightness adjusting assembly, the use experience is ensured, and the tensioning and cutting of the cable tie are linked through the driving motor, so that no additional operation is needed and the operation is simpler and more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic view of the application; Figure 2 The figure is an internal structure view of the cable tie gun body of the application; Figure 3 The figure is a cooperation schematic view of the mounting support on the sliding support of the application; Figure 4 The figure is a structural schematic view of the sliding support of the application; Figure 5 The figure is a cooperation schematic view of the barrel and the tensioning assembly of the application; Figure 6 The figure is a structural schematic view of the barrel of the application; Figure 7 The figure is an exploded view of the tightness adjusting assembly of the application; Figure 8 The figure is a structural schematic view of the second sleeve of the application; Figure 9 The figure is a sectional view of the barrel and the tightness adjusting assembly of the application; Figure 10 The figure is a sectional view of the application.

[0017] In the figure: 10, cable tie gun body; 101, holding part; 11, driving assembly; 101, driving motor; 102, mounting support; 103, driving gear; 104, driven gear; 105, sliding support; 106, bending part; 12, cutting assembly; 121, barrel; 122, guide sliding groove; 123, limiting protrusion; 124, blade; 125, rotating piece; 126, extension part; 127, cutting push block; 13, tension assembly; 131, tension rod shaft; 132, boss; 133, push-pull block; 134, lock block; 135, matching ear; 136, clamping tooth; 137, torsional spring; 138, guide slide column; 14, tightness adjustment assembly; 141, first sleeve; 142, second sleeve; 143, adjustment part; 144, adjustment pressing block; 145, top block; 146, second stroke limiting part; 147, adjustment groove; 148, adjustment column; 149, guide groove; 150, limiting column; 151, limiting groove; 152, feedback groove; 153, spring steel ball. DETAILED DESCRIPTION

[0018] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0019] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connection", "installation" should be understood in a broad sense, for example, "connection" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through intermediate medium. In addition, "communication" can be direct communication, or can be indirect communication through intermediate medium. Among them, "fixing" means connecting with each other and the relative positional relationship after connection does not change. The orientation language mentioned in the embodiments of the present application, such as "inner", "outer", "top", "bottom", etc., is only the direction of the drawing, therefore, the orientation language used is to better, more clearly illustrate and understand the embodiments of the present application, and is not indicative or implied that the device or element indicated 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 application.

[0020] In the embodiments of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0021] In the embodiments of the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B together, and the existence of B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.

[0022] Reference to "one embodiment" or "some embodiments" or "one implementation" or "some implementations" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearance of the phrase "in one embodiment" or "in some embodiments" or "in one implementation" or "in some implementations" in various places in the specification are not necessarily all referring to the same embodiment, although it can. The terms "including," "containing," "having," and variations thereof are meant to encompass the terms "including," "containing," "having," and variations thereof. Accordingly, the application is not limited to the specific embodiments disclosed herein, but includes any and all implementations which are within the scope of the appended claims.

[0023] As shown in Figures 1-10 The present application provides an electric tie gun, characterized in that comprising: a tie gun body 10, one end of the tie gun body 10 is provided with a holding part 101, the tie gun body 10 is connected with a tightness adjusting assembly 14 away from one end provided with the holding part 101, the tightness adjusting assembly 14 is slidably provided with a shearing assembly 12 away from one end of the tie gun body 10, for shearing tie; the shearing assembly 12 has a barrel 121, the tightness adjusting assembly 14 can adjust the movement stroke of the barrel 121, one end of the barrel 121 passes through the tightness adjusting assembly 14 and is located in the tie gun body 10, the barrel 121 is slidably provided with a tensioning assembly 13 in one end located outside the tie gun body 10, the tensioning assembly 13 has a tensioning rod shaft 131, one end of the tensioning rod shaft 131 is provided in the barrel 121 and can slide relative to the barrel 121, the tie gun body 10 is also provided with a driving assembly 11, one end of the tensioning rod shaft 131 cooperates with the driving assembly 11, the driving assembly 11 drives the tensioning assembly 13 to move in a predetermined direction through the tensioning rod shaft 131 to tighten the tie, the tensioning assembly 13 moves to a predetermined stroke to drive the shearing assembly 12 to move to shear the tie; Specifically, the switch button is arranged on the holding part 101, which is used to control the operation of the driving assembly 11. The bottom of the holding part 101 is detachably connected with the power supply assembly, which provides the driving assembly 11 with operation energy. The driving assembly 11 drives the pull rod shaft 131 to move in a predetermined direction when it operates. The moving direction can be only backward or forward and backward, which can be determined according to the requirement. The movement of the pull rod shaft 131 drives the tightening assembly 13 to move in the barrel 121. When the pull rod shaft 131 moves backward to a certain stroke, the tightening assembly 13 abuts against the barrel 121. At this time, it is the first movement stroke, and the tightening of the cable is completed after the first movement stroke. When the pull rod shaft 131 continues to move backward, the tightening assembly 13 drives the barrel 121 to move backward. At this time, it is the second movement stroke, and the cutting assembly 12 starts to move synchronously under the movement of the barrel 121 to cut the cable. In order to control the stroke of the cutting assembly 12, the tightness adjusting assembly 14 is fixedly connected with the cable gun body 10 away from the holding part 101. The tightness adjusting assembly 14 is rotatably arranged. The tightness adjusting assembly 14 can adjust the movement stroke of the barrel 121, which can be shortened or lengthened. When it is shortened, the movement stroke of the cutting assembly 12 can be reduced, which is used for the cable with thin thickness and soft material. When it is lengthened, the movement stroke of the cutting assembly 12 can be increased. When the thickness of the cable is thick and the material is hard, the cutting time can be longer, which can ensure that the cable can be cut.

[0024] Further, the driving assembly 11 comprises a mounting bracket 102 fixedly arranged in one end of the strap gun body 10 provided with a holding portion 101, the middle part of the mounting bracket 102 is hollow, a driving gear 103 and a driven gear 104 are rotatably arranged in the middle part of the mounting bracket 102, a driving motor 101 is arranged in the holding portion 101, the output end of the driving motor 101 is fixedly connected with the driving gear 103, the driving motor 101 drives the driving gear 103 to rotate, thereby driving the driven gear 104 to rotate, a sliding bracket 105 is slidably arranged in the mounting bracket 102, the middle part of the sliding bracket 105 is hollow, the driving gear 103 and the driven gear 104 are located in the middle part of the sliding bracket 105, and the two surfaces of the sliding bracket 105 facing the driving gear 103 and the driven gear 104 are in the form of a rack, one surface of the sliding bracket 105 in the form of a rack is engaged with the driving gear 103, and the other surface is engaged with the driven gear 104, when the driving motor 101 drives the driving gear 103 to rotate, the driving gear 103 synchronously drives the driven gear 104 to rotate, and the driving gear 103 and the driven gear 104 drive the sliding bracket 105 to move forward or backward; the front end of the sliding bracket 105 is provided with a bent portion 106, the bending radius of the bent portion 106 is matched with the outer side of the pull rod shaft 131, the bent portion 106 is located above the pull rod shaft 131, and a boss 132 is further arranged at the tail end of the pull rod shaft 131, when the sliding bracket 105 moves under the driving of the driving motor 101, the bent portion 106 reciprocates above the pull rod shaft 131, when the bent portion 106 moves backward by a certain distance, the bent portion 106 is in contact with the boss 132, the boss 132 drives the pull rod shaft 131 to move backward, the pull rod shaft 131 drives the tensioning assembly 13 to move, thereby realizing the tensioning of the strap. Since the rotating directions of the driving gear 103 and the driven gear 104 are opposite when rotating, and the driving gear 103 and the driven gear 104 are located in the middle part of the sliding bracket 105, in order to avoid the occurrence of motion conflict, in the embodiment, the two sides of the sliding bracket 105 are arranged in up-down staggered mode, one side is engaged with the driving gear 103 for transmission, and the other side is engaged with the driven gear 104 for transmission, through the up-down staggered arrangement, it is avoided that one gear is simultaneously engaged with the two surfaces of the sliding bracket 105 for transmission.

[0025] It should be noted that, in order to avoid excessive sliding of the sliding bracket 105, abutting members (not shown in the figure) are arranged at the two ends of the sliding bracket 105, and limiting members (not shown in the figure) are arranged in the strap gun body 10 at the maximum forward movement position and the maximum backward movement position of the sliding bracket 105, when the sliding bracket 105 is at the maximum position in any direction, the limiting members block the sliding bracket 105 to avoid continuous movement, and in order to avoid overloading of the driving motor 101, when the current suddenly increases to a predetermined value, the driving motor 101 stops running.

[0026] Further, the shearing assembly 12 further comprises a blade 124, a slide groove is arranged in the end of the barrel 121 outside the strap gun body 10, the blade 124 is vertically arranged in the slide groove and is used for limiting the sliding direction of the blade 124, a rotating member 125 is rotatably arranged in the end of the barrel 121 provided with the blade 124, two extension parts 126 are arranged on the rotating member 125 at a predetermined angle interval, a through hole is arranged in the bottom end of the blade 124, and one of the extension parts 126 is arranged in the through hole; a shearing push block 127 is slidably arranged in the bottom of the end of the barrel 121 outside the strap gun body 10, one end of the shearing push block 127 is clamped with the first sleeve 141, the shearing push block 127 cannot move under the limitation of the first sleeve 141, a through hole is arranged in the end of the shearing push block 127 away from the clamped end of the first sleeve 141, the other extension part 126 of the rotating member 125 is arranged in the through hole, when the barrel 121 is driven by the tensioning assembly 13 to enter the second movement stroke, the relative position between the shearing push block 127 and the barrel 121 changes, that is, the barrel 121 moves backward and the shearing push block 127 is stationary, at this time, the rotating member 125 is pushed by the shearing push block 127 through the cooperation of the one of the extension parts 126 and the shearing push block 127 and is rotated, the rotation of the rotating member 125 synchronously drives the other extension part 126 to rotate, thereby driving the blade 124 to rise and perform a shearing action, and the same reason is that when the barrel 121 moves forward, the shearing push block 127 drives the rotating member 125 to rotate reversely, at this time, the blade 124 is driven by the extension part 126 to descend.

[0027] Further, the tensioning assembly 13 comprises a push-pull block 133 connected with the pull rod shaft 131 and sliding in the barrel 121 under the driving of the pull rod shaft 131, the front end of the push-pull block 133 is provided with a locking block 134 located above the front end of the push-pull block 133, the bottom of the locking block 134 is rotationally connected with the push-pull block 133 and can rotate within a predetermined angle relative to the push-pull block 133, the push-pull block 133 is further provided with a matching lug 135 bent from the front end side of the push-pull block 133 and covering the locking block 134, the rotation of the locking block 134 can reduce the spacing between the locking block 134 and the matching lug 135, when the cable passes through the spacing between the locking block 134 and the push-pull block 133, the cable can be squeezed and clamped by the cooperation between the locking block 134 and the matching lug 135, so that the cable can be pulled tight when the push-pull block 133 slides, the clamping force of the locking block 134 on the cable is improved, the upper surface of the locking block 134 is further provided with a clamping tooth 136 obliquely arranged towards the direction of the cable gun body 10, the cable itself has teeth, when the cable passes through the gap between the locking block 134 and the matching lug 135, the locking block 134 rotates to engage the teeth of the cable through the clamping tooth 136, so as to fix the cable, the clamping tooth 136 obliquely arranged in a specific direction can generate greater limiting force, and since the clamping tooth 136 is obliquely arranged in a specific direction, the cable will not be limited by the clamping tooth 136 when moving in the oblique direction of the clamping tooth 136, but will be clamped when moving in the opposite direction, preventing the cable from sliding out of the clamping assembly under the pulling force, and ensuring that the clamping force is sufficient.

[0028] In order to reset the push-pull block 133, a pull rod spring (not shown in the figure) is further arranged at one end of the pull rod shaft 131 connected with the push-pull block 133, one end of the pull rod spring abuts against the push-pull block 133 and the other end abuts against the internal structure of the barrel 121, so that the pull rod spring is compressed when the pull rod shaft 131 moves backward under the driving of the sliding support 105, and the push-pull block 133 is reset to drive the pull rod shaft 131 to reset after losing the driving force of the sliding support 105.

[0029] In order to realize the automatic cooperation of the locking block 134 and the matching lug 135 to clamp the cable, a torsional spring 137 is further arranged at the connection position of the locking block 134 and the push-pull block 133, so that the locking block 134 is always in an upwardly tilted state and cooperates with the matching lug 135 at all times.

[0030] In order to avoid the deviation of the push-pull block 133 when sliding in the barrel 121, a guide sliding groove 122 is formed in the inner wall of each side of the barrel 121, and a guide sliding column 138 is arranged in the push-pull block 133, the end of the guide sliding column 138 is located in the corresponding guide sliding groove 122, through the cooperation of the guide sliding groove 122 and the guide sliding column 138, the deviation of the push-pull block 133 in the barrel 121 is avoided, and through the connection of the pull rod shaft 131 and the push-pull block 133, double-point fixation is realized, and the situation that the push-pull block 133 is warped is avoided.

[0031] Further, the tightness adjusting assembly 14 comprises a first sleeve 141 and a second sleeve 142, the second sleeve 142 is fixedly connected with the barrel body, one end of the first sleeve 141 is provided with an adjusting part 143, the diameter of the adjusting part 143 is less than or equal to the inner diameter of the second sleeve 142, when installed, the adjusting part 143 is inserted into the second sleeve 142, the first sleeve 141 can rotate relative to the second sleeve 142, an adjusting pressure block 144 is slidably arranged in the adjusting part 143, the adjusting pressure block 144 is limitedly slidably matched with the adjusting part 143, that is, the adjusting pressure block 144 will reciprocate along the predetermined direction with the rotation of the adjusting part 143, the barrel 121 is slidably arranged in the first sleeve 141, one end of the barrel 121 is located in the first sleeve 141 and penetrates through the adjusting pressure block 144 and the second sleeve 142, and the middle part of the barrel 121 is hollow for placing the pull rod shaft 131, the pull rod shaft 131 can slide relative to the barrel 121, the other end of the barrel 121 is located outside the first sleeve 141, a top block 145 is fixedly arranged in the part of the barrel 121 located in the first sleeve 141, the top block 145 is oppositely arranged with the adjusting pressure block 144, a resistance spring (not shown in the figure) is arranged between the top block 145 and the adjusting pressure block 144, the resistance spring is sleeved outside the barrel 121 between the top block 145 and the adjusting pressure block 144, when the first sleeve 141 rotates to drive the adjusting part 143 to rotate, the adjusting part 143 drives the adjusting pressure block 144 to slide in it through the limiting cooperation, to reduce the distance between the adjusting pressure block 144 and the top block 145, so as to compress the resistance spring, when the restoring force of the resistance spring increases and acts on the barrel 121, the force of the barrel 121 is greater, in this case, the movement stroke of the barrel 121 is shorter, and the shearing action of the shearing assembly 12 is earlier, to adapt to the lower hardness or thickness of the cable tie, on the contrary, the distance between the adjusting pressure block 144 and the top block 145 is expanded, in this case, the movement stroke of the barrel 121 is longer, and the action of the shearing assembly 12 is prolonged, to be used for shearing the cable tie with higher thickness and hardness.

[0032] The adjusting groove 147 is spirally arranged on the side wall of the adjusting part 143, and the adjusting column 148 is arranged on the opposite outer side of the adjusting block 144, and the adjusting column 148 is located in the adjusting groove 147. When the adjusting part 143 rotates, the adjusting block 144 is driven to move forward or backward through the sliding cooperation of the adjusting groove 147 and the adjusting column 148. In order to avoid the rotation of the adjusting block 144 in the adjusting part 143, the guide groove 149 is arranged on the opposite sides of the second shell 142, the adjusting column 148 passes through the adjusting groove 147 and is located in the guide groove 149, and the guide groove 149 is arranged along the axial direction of the second shell 142, so that the adjusting block 144 can only move forward or backward and cannot be rotated.

[0033] In order to avoid the first shell 141 and the second shell 142 from being separated and affecting use, and to avoid limiting the rotation of the first shell 141 relative to the second shell 142, at least one limiting column 150 is arranged on the side of the end of the second shell 142 adjacent to the first shell 141. The limiting column 150 can be vertically inserted into the second shell 142 or transversely arranged along the radial direction of the second shell 142. In the embodiment, the limiting column 150 is preferably transversely arranged along the radial direction of the second shell 142, and the middle part of the limiting column 150 is exposed to the outside of the inner side wall of the second shell 142. A limiting groove 151 is arranged at the position corresponding to the limiting column 150 of the adjusting part 143. When the adjusting part 143 is inserted into the second shell 142, the limiting column 150 is inserted into the limiting groove 151, and the middle part of the limiting column 150 is located in the limiting groove 151. The first shell 141 is limited from being separated from the second shell 142 through the cooperation of the limiting column 150 and the limiting groove 151, and the rotation of the first shell 141 relative to the second shell 142 is not affected. In order to improve the stability of the cooperation, two limiting columns 150 are arranged on the opposite sides of the second shell 142.

[0034] Further, in order to let the user know the moving progress of the adjusting block 144 when rotating the first shell 141, the end of the adjusting part 143 inserted into the second shell 142 is provided with a plurality of feedback grooves 152 arranged at intervals, and the side of the second shell 142 opposite to the feedback grooves 152 is provided with at least one spring steel ball 153. When assembled, the spring steel ball 153 will be in the feedback groove 152 and move in the adjacent feedback groove 152 with the rotation of the adjusting part 143, and the spring steel ball 153 will hit the corresponding feedback groove 152 to make a sound when moving in the adjacent feedback groove 152, thereby reminding the user that the adjusting block 144 is moving and the user can roughly judge the current moving position of the adjusting block 144 by the number of sounds. In addition, the spring steel ball 153 can also prevent the adjusting block 144 from being pushed to rotate the first shell 141 under the action of the spring. In order to ensure stability, two spring steel balls 153 are provided in this embodiment, and the resistance generated by the cooperation of the two spring steel balls 153 and the feedback grooves 152 can limit the free rotation of the first shell 141.

[0035] Further, the pull rod shaft 131 will first drive the push-pull block 133 to move in the first stroke in the barrel 121, and the push-pull block 133 will hit the barrel 121 to drive the barrel 121 to move in the second stroke at the limit position. The second stroke movement will promote the shearing assembly 12 to perform the shearing action. In order to avoid excessive movement of the barrel 121 in the second stroke, a second stroke limiting piece 146 is fixedly arranged at the end of the first shell 141 away from the second shell 142, and two limiting protrusions 123 are arranged at intervals on the barrel 121. The second stroke limiting piece 146 is located between the two limiting protrusions 123, and the barrel 121 will be limited to stop moving when moving a certain stroke whether moving forward or backward.

[0036] In use, the strap is wound around the material to be bundled, and then the tail end of the strap is inserted into the tensioning assembly 13, and the strap is clamped by the clamping ears 135 and the clamping teeth 136 of the locking block 134, and then the driving motor 101 is driven in forward rotation by pressing the switch button, the driving motor 101 drives the sliding bracket 105 to move backward through the driving gear 103 and the driven gear 104, the sliding bracket 105 drives the pull rod shaft 131 to move backward through the cooperation of the bending part 106 and the boss 132, the pull rod spring is compressed, the pull rod shaft 131 drives the push-pull block 133 to move backward in the barrel 121, the strap is tightened, and when the push-pull block 133 reaches the limit position and abuts against the internal structure of the barrel 121, the second movement stroke is entered, the barrel 121 is driven to move backward, the relative position between the shearing push block 127 and the barrel 121 is changed, thereby driving the rotating part 125 to rotate, the blade 124 is lifted to shear the strap, and the shearing is completed; then the motor can be reversed by the forward-reverse switch, and the sliding bracket 105 is reset, at this time the pull rod shaft 131 is driven to reset by the push-pull block 133 under the action of the pull rod spring after losing the action force of the sliding bracket 105, so as to facilitate the next use.

[0037] In summary, the movement stroke of the barrel is controlled by the tightness adjusting assembly, the movement stroke of the shearing assembly is controlled, different types of straps are adapted, and different use requirements are met; the driving assembly drives the tensioning assembly to move horizontally through the pull rod shaft, the tightness adjusting assembly can not only lengthen the length of the strap gun body, but also can lengthen the movement stroke of the sliding bracket, ensure the use experience, and the tensioning and shearing of the strap are linked through the driving motor, without additional operation, and the operation is more simple and convenient.

[0038] The present application is not limited to the description and embodiments described in the specification, and therefore other advantages and modifications can be easily realized by those skilled in the art, and the present application is not limited to specific details, representative devices and examples of the drawings shown and described herein.

Claims

1. An electric tie gun characterized by, The utility model relates to a kind of tying gun, including: Tying gun body, one end of the tying gun body is equipped with holding part, the tying gun body is connected with tension adjustment assembly away from one end equipped with the holding part, tension adjustment assembly is slidably equipped with shearing assembly away from one end of the tying gun body, for shearing tying band;The shearing assembly has gun barrel, the movement stroke of the gun barrel can be adjusted by the tension adjustment assembly, one end of the gun barrel is located in the tying gun body by passing through the tension adjustment assembly, tensioning assembly is slidably equipped in the end of the gun barrel located outside the tying gun body, the tensioning assembly has pull rod shaft, one end of the pull rod shaft is equipped in the gun barrel and can be slid relative to the gun barrel, the tying gun body is also equipped with driving assembly, one end of the pull rod shaft cooperates with the driving assembly, the driving assembly drives the tensioning assembly to move to predetermined direction and tension tying band by the pull rod shaft, the tensioning assembly moves to predetermined stroke and drives the shearing assembly to move and shears tying band.

2. The electric tie gun of claim 1, wherein, The driving assembly includes: mounting bracket, the mounting bracket is fixedly arranged in the end of the tying gun body equipped with the holding part, the mounting bracket is slidably connected with sliding bracket, the middle part of the mounting bracket is also fixedly provided with driving gear and driven gear, the driving gear is engaged with the driven gear, the driving gear and the driven gear are also located in the middle part of the sliding bracket, the two sides of the sliding bracket towards the driving gear and driven gear are in rack shape, one side of the sliding bracket in rack shape is engaged with the driving gear to drive, the other side of the sliding bracket in rack shape is engaged with the driven gear to drive, the two sides of the sliding bracket are arranged in up-down staggered mode, one end of the sliding bracket is provided with bending part, the bending part is located above the pull rod shaft, the tail end of the pull rod shaft is provided with boss matched with the bending part, the holding part is also provided with driving motor, the output end of the driving motor is fixedly connected with the driving gear.

3. The electric tie gun of claim 1, wherein, The shearing assembly also includes: blade, the blade is slidably arranged in the end of the gun barrel away from the tying gun body, the end of the gun barrel provided with the blade is also rotatably provided with rotating member, the rotating member is provided with two extension parts arranged at a predetermined angle, the blade cooperates with one of the extension parts;The bottom of the end of the gun barrel located outside the tying gun body is also slidably provided with shearing push block, one end of the shearing push block is clamped with the tension adjustment assembly, the other end cooperates with another extension part, when the gun barrel slides along the predetermined direction relative to the tension adjustment assembly, the shearing push block drives the rotating member to rotate through the extension part, the rotating member drives the blade to rise or fall;Tying band tensioning assembly is slidably arranged in the end of the gun barrel located outside the tying gun body.

4. The electric tie gun of claim 1, wherein, The tensioning assembly comprises a push-pull block, the tension rod shaft is fixedly connected to the push-pull block at an end away from the driving assembly, a locking block is arranged on the top of the end of the push-pull block away from the tension rod shaft, the bottom of the locking block is rotationally connected to the push-pull block, a matching lug is arranged on the push-pull block corresponding to the locking block, the matching lug covers the top of the locking block, the cable passes between the locking block and the matching lug, and the locking block rotationally matches the matching lug to extrude the cable.

5. The electric tie gun of claim 4, wherein, The side of the locking block facing the matching lug is further provided with a clamping tooth inclined to the direction of the cable gun body, and the locking block is further provided with a torsional spring for continuously matching the locking block with the matching lug.

6. The electric tie gun of claim 4, wherein, The gun barrel is provided with a guide sliding groove on each side of the end of the gun barrel outside the cable gun body, and a guide sliding column is arranged in the push-pull block, and the two ends of the guide column are located in the guide sliding grooves.

7. The electric tie gun of claim 1, wherein, The tension adjustment assembly comprises a first sleeve and a second sleeve, one end of the first sleeve is provided with an adjustment part, the second sleeve is sleeved on the adjustment part, the first sleeve can rotate relative to the second sleeve, an adjustment pressing block is slidably arranged in the adjustment part, the adjustment pressing block is limitingly and slidably matched with the adjustment part, when the first sleeve rotates relative to the second sleeve, the adjustment pressing block reciprocally moves in the adjustment part, the first end of the gun barrel passes through the first sleeve and the second sleeve and can slide relative to the first sleeve and the second sleeve, the part of the gun barrel located outside the first sleeve is further fixedly provided with a top block, and a resistance spring is arranged between the top block and the adjustment pressing block.

8. The electric tie gun of claim 7, wherein, A spiral adjustment groove is arranged on the side wall of the adjustment part, an adjustment column is arranged on the outside of the adjustment pressing block and matched with the adjustment groove, and the adjustment column can move along the adjustment groove; the inside of the second sleeve is further provided with a guide groove, and the adjustment column passes through the adjustment groove and is located in the guide groove.

9. The electric tie gun of claim 7, wherein, At least one limiting column is arranged on one end side of the second sleeve, a limiting groove is arranged on the outside wall of the adjustment part, the limiting column is matched with the limiting groove to limit the disengagement of the second sleeve from the first sleeve; a plurality of feedback grooves are arranged on the end of the end of the adjustment part away from the first sleeve, at least one spring steel ball is arranged on the side of the second sleeve opposite to the feedback grooves, and the spring steel ball is located in the feedback groove.

10. The electric tie gun of claim 7, wherein, A second stroke limiting piece is further fixedly connected to the end of the first sleeve away from the second sleeve, the gun barrel passes through the second stroke limiting piece and can slide in the second stroke limiting piece, two limiting protrusions are arranged on the gun barrel at intervals, and the second stroke limiting piece is located between the two limiting protrusions.

Images