Handheld strapping machine

Abstract

The utility model discloses a handheld strapping machine. Comprising a handheld machine shell, a driving shaft rotationally arranged in the handheld machine shell, a servo motor for driving the driving shaft to rotate, a pair of conveying wheels which are parallel up and down and rotationally arranged in the handheld machine shell, a rotating device I for driving the two conveying wheels to synchronously and reversely rotate, and a tape conveying channel which is arranged in the handheld machine shell and is used for a strapping tape to pass through, the belt feeding notch is formed in one end of the handheld machine shell and communicated with the belt feeding channel, the rotating shaft is rotationally arranged on the handheld machine shell and rotates at the position of the belt feeding notch, the second rotating device drives the rotating shaft to rotate, and one end of the rotating clamping plate is fixedly hinged to the rotating shaft. The automatic hot melting device is arranged on the handheld machine shell and located above the rotary clamping plate to conduct hot melting on the strapping tape, and the automatic cutting device is arranged in the handheld machine shell and located in the conveying channel to cut off the strapping tape. The strapping tape cutting device has the advantages that the strapping tape can be automatically cut, and the cutting length of the strapping tape can be accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste and old metal packing technical field, especially hand -held bundling machine. BACKGROUND

[0002] In the recycling process of waste and old metal, in order to facilitate transportation, it usually needs to be packed and tied, and the waste and old metal packing and tying commonly use packing machines at present, and its working mode is that first, the tying band is wound around the waste and old metal, then the two ends of the tying band are respectively inserted into the packing machine, then the tightening button of the packing machine is pressed, the tying band is tightened until the necessary or preset tightening force is reached, finally the fusion cutting button of the packing machine is pressed, so that the two ends of the tying band are fused and fixed, thereby realizing the packing work of the waste and old metal.

[0003] However, the above packing machine needs manual cutting of the required length of the tying band before tying in the actual use process, because the sizes of the waste and old metal are different, and different lengths of the tying band are often needed for tying, so manual cutting is not only low in efficiency, but also difficult to control the length of the tying band, once the tying band is cut too long, the excess part of the tying band needs to be cut off, resulting in waste of the tying band and reduction of the utilization rate of the tying band, and the tying band is too short, which increases the difficulty of manual tying and packing, resulting in reduction of packing efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a hand -held bundling machine, which has the effects of automatic cutting of the tying band and accurate control of the cutting length of the tying band.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a hand -held bundling machine, including hand -held casing, the driving shaft that rotates to be arranged in the hand -held casing, the servo motor that drives driving shaft rotation, a pair of upper and lower parallel and rotatingly arranged in the hand -held casing conveying wheel, the rotating device one that drives two conveying wheels synchronous reverse rotation, the tape feeding channel that is arranged in the hand -held casing interior and is passed for tying band, the tape feeding gap that is arranged in the hand -held casing one end and is connected with tape feeding channel, the rotating shaft that is rotatingly arranged on the hand -held casing and is located at the rotating shaft of rotating shaft, the rotating device two that drives, the rotating clamp plate that one end fixedly connects rotating shaft, the automatic hot melting device that is arranged on the hand -held casing and is located above rotating clamp plate hot melting tying band, the automatic cutting device that is arranged in the hand -held casing interior and is located in the cutting of tying band in conveying channel,

[0006] The fixed sleeve on the driving shaft is provided with a bundling tape roll, and the two conveying wheels rotate to clamp the bundling tape of the bundling tape roll; the bundling tape roll and the tape conveying channel are located on the two sides of the two conveying wheels, and the tape conveying channel is horizontally located in the middle of the two conveying wheels; the tape gap is connected to one end of the tape conveying channel away from the conveying wheels; the rotary clamping plate is located below the tape conveying channel and is reversely active, and when the rotary clamping plate is horizontal, it can clamp one end of the bundling tape with the handheld shell bottom wall.

[0007] The handheld shell comprises a shell and a pair of front and rear shell covers, a special-shaped groove one is formed on one side of the shell for placing the bundling tape roll and the movable conveying wheels, the tape conveying channel and the tape gap are formed on the side of the shell, the automatic hot melting device and the automatic cutting device are arranged on the side of the shell, a special-shaped groove two is formed on the other side of the shell, the front and rear shell covers are respectively detachably connected to the two sides of the shell, the front shell cover covers the special-shaped groove one and the tape conveying channel, and the rear shell cover covers the special-shaped groove two, the wheel shafts and the rotating shafts of the conveying wheels respectively rotate through the shell and extend into the special-shaped groove two, the rotating device one and the rotating shaft two are located in the special-shaped groove two and respectively drive the wheel shafts and the rotating shafts of the two conveying wheels to rotate, the driving shaft rotates through the shell and respectively rotates out of the front and rear shell covers at both ends, and the servo motor is fixed on the rear shell cover and connected to one end of the driving shaft rotating out of the rear shell cover.

[0008] The shell, the front shell cover and the rear shell cover are provided with a handheld hole one and a handheld hole two, the handheld hole one is located above the special-shaped groove one and in the middle of the special-shaped groove two, and the handheld hole two is located above the tape conveying channel and in the middle of the special-shaped groove two.

[0009] The front shell cover is provided with a plurality of insertion columns on the side facing the special-shaped groove one, and the shell is provided with a plurality of insertion holes on the side for closely inserting the insertion columns; a plurality of nuts are fixedly arranged on the bottom wall of the special-shaped groove two, and screws are inserted through the nuts.

[0010] The center of the bundling tape roll is fixedly inserted with a detachable sleeve, the detachable sleeve is sleeved on the driving shaft, and the outer wall of the driving shaft and the inner wall of the detachable sleeve are respectively provided with a key and a keyway for transmitting rotary motion.

[0011] The rotating device one comprises a driving gear fixed on the driving shaft, a pair of driven gears fixed on the wheel shafts of the two conveying wheels and meshing with each other, and a transmission gear meshing with the driving gear and one driven gear and meshing transmission in the special-shaped groove two.

[0012] The further setting of the utility model discloses: the crank of one end fixed connection driving shaft, the slider one of the slide setting in the special-shaped recess two, the connecting rod one of the two ends respectively articulated crank and slider one, the slider two of the slide setting in handheld hole two, the long hole one of the opening in the inner wall of handheld hole two and the intercommunication special-shaped recess two inside, the L shape pole of one end fixed connection slider two and through long hole one and extend into the special-shaped recess two, the connecting rod two of the two ends respectively articulated L shape pole and slider one.

[0013] The further setting of the utility model discloses: the special-shaped recess two is located below handheld hole two and is fixedly arranged with the supporting plate, a pair of upper and lower parallel guide rods one are fixedly arranged between the supporting plate and the inner wall of special-shaped recess one, and the two guide rods one are slidably passed through slider one, the crank and connecting rod one are movable between slider one and the inner wall of special-shaped recess two, and one end of connecting rod one is articulated to the side of slider one facing the bottom wall of special-shaped recess two, connecting rod two is movable between slider one and rear shell cover, and one end of connecting rod two is articulated to the side of slider one facing away from the bottom wall of special-shaped recess two, the L shape pole is movable on the side of the supporting plate facing away from the guide rod one, a spring is sleeved on the guide rod one, and the two ends of the spring are fixedly connected with slider one and the supporting plate respectively, a pair of guide rods two are fixedly arranged on the top of slider two, and the inner top of handheld hole two is provided with sliding hole for the sliding insertion of guide rod two.

[0014] The further setting of the utility model discloses: the automatic hot melting device includes the square recess one of the opening in the one side of the shell, the slider three of the slide in square recess one, the hot pressing block of the fixed bottom of slider three and the inside heating element, the opening one of the opening in the bottom of square recess one and the hot pressing block is taken out, the screw rod one of the vertical rotation setting in square recess one, the round hole one of the opening in the top of slider three and the insertion of screw rod one, the nut one of the fixed top of slider three and the screw connection of screw rod one, the small motor one of the driving screw rod one rotation, the opening one is connected with square recess one and the tape gap, the hot pressing block is located above the rotating clamp plate, and when the rotating clamp plate is horizontal, the hot pressing block can be clamped with the rotating clamp plate and heated binding tape, the small motor one is fixed on the top of the shell, and the output end of small motor one is rotatably taken into square recess one and connected with the top end of screw rod one.

[0015] The further setting of the utility model discloses: automatic cutting device including the square recess two of opening in the one side of shell, the slider four of sliding in square recess two, the cutter of fixing in the bottom of slider four, the opening two of opening in the bottom of square recess two and the opening of cutter, the screw rod two of vertical rotation setting in square recess two, the round hole two of opening in the top of slider four and the screw rod two of inserting, the nut two of fixing in the top of slider four and the screw connection screw rod two, the small -size motor two of driving screw rod two rotation, opening two intercommunication square recess two and the belt channel, the cutter can cut off the bundling tape in the belt channel when extending opening two, and the bottom of belt channel is provided with the cutting groove of the cutter insertion, small -size motor two is fixed in the top of shell, and the output end rotation of small -size motor two is inserted into square recess two and is connected with the top end of screw rod two.

[0016] The utility model discloses the beneficial effect is: through adopting above -mentioned technical scheme, when needing to pack waste metal, first servo motor drive driving shaft rotation makes driving shaft drive bundling tape roll unrolling, and synchronous reverse rotation of rotating device one drive two conveyors simultaneously, and the bundling tape is sent into the belt channel under the clamping of introduction, then the bundling tape is sent under the guidance of the belt channel from the conveyer belt gap, and after the bundling tape is sent to a certain length, the worker manually preliminary bundling of waste metal is with the bundling tape one end is inserted into the gap of rotating clamp plate and shell bottom, then using rotating device two drive rotating shaft rotation makes rotating shaft drive rotating clamp plate overturn, and cooperates handheld machine shell bottom wall, and the bundling tape one end is clamped and fixed under the belt gap, then, servo motor, conveyor reverse motion makes the bundling tape part re -winding to the bundling tape roll, not only tight bundling tape through this mode, but also can return the part of bundling tape too long, until reaching certain tight force, the automatic cutting device on the belt channel will automatically cut the bundling tape, and in this way, the bundling tape of suitable length is obtained, finally, the automatic hot melting device on the belt gap will melt and connect the two ends of the bundling tape that are cut and clamped respectively, after the melting is finished, the two ends of the bundling tape that are melted are extracted from the belt gap, and the complete bundling and packing of waste metal can be realized.

[0017] The bundling and packing process of the handheld bundling frame can not only realize the rapid tightening of the bundling tape by automatically sending and returning the bundling tape, but also can control the length of the bundling tape within a suitable range when the bundling tape is tightened, and then cooperate with the automatic cutting device to cut automatically, thereby effectively overcoming the problem of manual cutting of the bundling tape that is too long or too short. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings described in the following are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the embodiment;

[0020] Figure 2 is a schematic diagram of the internal structure of the handset shell of the embodiment;

[0021] Figure 3 is a schematic diagram of the explosion of the embodiment;

[0022] Figure 4 is a schematic diagram of the structure of the automatic hot melting device and the automatic cutting device of the embodiment;

[0023] In the drawings, 1, handset shell; 11, shell body; 111, special-shaped groove one; 112, special-shaped groove two; 112a, support plate; 112b, guide rod one; 112c, spring; 113, handheld hole one; 114, handheld hole two; 114a, sliding hole; 115, insertion hole; 116, nut; 12, front shell cover; 121, insertion column; 13, rear shell cover; 131, screw; 2, driving shaft; 3, servo motor; 4, conveying wheel; 5, rotating device one; 51, driving gear; 52, driven gear; 53, transmission gear; 6, belt conveying channel; 61, cutting groove; 7, belt gap; 8, rotating shaft; 9, rotating device two; 91, crank; 92, sliding block one; 93, connecting rod one; 94, sliding block two; 941, guide rod two; 95, long hole one; 96, L-shaped rod; 97, connecting rod two; 10, rotating clamp plate; 1a, automatic hot melting device; 1a1, square groove one; 1a2, sliding block three; 1a3, hot pressing block; 1a4, opening one; 1a5, screw one; 1a6, round hole one; 1a7, nut one; 1a8, small motor one; 1b, automatic cutting device; 1b1, square groove two; 1b2, sliding block four; 1b3, cutter; 1b4, opening two; 1b5, screw two; 1b6, round hole two; 1b7, nut two; 1b8, small motor two; 1c, bundling tape roll; 1c1, detachable sleeve. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described clearly and completely in the following with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0025] Example: A handheld strapping machine, such as Figures 1-4 As shown, the device includes a handheld housing 1, a drive shaft 2 rotatably disposed within the handheld housing 1, a servo motor 3 driving the drive shaft 2 to rotate, a pair of parallel conveyor wheels 4 rotatably disposed within the handheld housing 1, a first rotating device 5 driving the two conveyor wheels 4 to rotate synchronously in opposite directions, a feeding channel 6 disposed inside the handheld housing 1 for the strapping to pass through, a feeding notch 7 disposed at one end of the handheld housing 1 and connected to the feeding channel 6, a rotating shaft 8 rotatably disposed on the handheld housing 1 and located at the feeding notch 7, a second rotating device 9 driving the rotating shaft 8 to rotate, a rotating clamp 10 with one end fixedly hinged to the rotating shaft 8, an automatic heat-melting device 1a disposed on the handheld housing 1 and located above the rotating clamp 10 for heat-melting the strapping, and an automatic cutting device 1b disposed inside the handheld housing 1 and located within the conveying channel for cutting the strapping.

[0026] A strapping roll 1c is fixedly sleeved on the drive shaft 2. Two conveyor wheels 4 rotate to clamp and feed the strapping roll 1c. The strapping roll 1c and the feeding channel 6 are located on both sides of the two conveyor wheels 4, and the feeding channel 6 is horizontally located in the middle of the two conveyor wheels 4. The feeding notch 7 connects to the end of the feeding channel 6 away from the conveyor wheel 4. The rotating clamp 10 is located below the feeding channel 6 and rotates. When the rotating clamp 10 is horizontal, it can clamp one end of the strapping with the bottom wall of the handheld housing 1.

[0027] Furthermore, the handheld device housing 1 includes a housing 11 and a pair of front covers 12 and a rear cover 13. One side of the housing 11 has a shaped groove 111 for placing the strapping roll 1c and for the movable conveyor wheel 4. A strapping channel 6 and a strapping notch 7 are also located on this side of the housing 11. An automatic heat-sealing device 1a and an automatic cutting device 1b are also located on this side of the housing 11. The other side of the housing 11 has a second shaped groove 112. The front cover 12 and the rear cover 13 are detachably connected to both sides of the housing 11, with the front cover 12 covering the shaped groove 111 and the strapping area. Channel 6 and rear cover 13 cover the irregular groove 112. The axle of the conveying wheel 4 and the rotating shaft 8 rotate through the housing 11 and extend into the irregular groove 112. The rotating device 5 and the rotating shaft 8 are located in the irregular groove 112 and drive the axle of the two conveying wheels 4 and the rotating shaft 8 to rotate respectively. The drive shaft 2 rotates through the housing 11 and its two ends rotate through the front cover 12 and the rear cover 13 respectively. The servo motor 3 is fixed on the rear cover 13 and the output end of the servo motor 3 is connected to one end of the drive shaft 2 that passes through the rear cover 13.

[0028] By adopting the above-mentioned handheld housing 1 structure, not only can it provide installation space and position for other components and devices, but also the irregular groove 111, the tape feeding channel 6 and the tape feeding notch 7 on one side of the housing 11 can provide a safe and stable delivery channel for the strapping.

[0029] Further, the shell 11, the front shell cover 12 and the rear shell cover 13 are collectively provided with a hand hole one 113 and a hand hole two 114, the hand hole one 113 is located above the special-shaped groove one 111 and in the middle of the special-shaped groove two 112, and the hand hole two 114 is located above the tape conveying channel 6 and in the middle of the special-shaped groove two 112. By adopting the hand hole one 113 and the hand hole two 114, the staff can conveniently and stably hold the device.

[0030] Further, the side of the front shell cover 12 facing the special-shaped groove one 111 is fixedly provided with a plurality of insertion columns 121, and one side of the shell 11 is provided with insertion holes 115 for tightly inserting the insertion columns 121; a plurality of nuts 116 are fixedly arranged on the bottom wall of the special-shaped groove two 112, and the rear shell cover 13 is provided with screws 131 for threadedly connecting the nuts 116. By adopting the insertion structure of the insertion columns 121 and the insertion holes 115, the staff can conveniently disassemble the connection between the front shell cover 12 and the shell 11 at any time, so as to replace the new and old bundling tape roll 1c; by adopting the threadedly connecting structure of the nuts 116 and the screws 131, the staff can conveniently disassemble the connection between the rear shell cover 13 and the shell 11 when necessary, so as to overhaul and maintain the movable parts such as gears and connecting rods.

[0031] Further, the center of the bundling tape roll 1c is fixedly inserted with a detachable sleeve 1c1, the detachable sleeve 1c1 is sleeved on the driving shaft 2, and the outer wall of the driving shaft 2 and the inner wall of the detachable sleeve 1c1 are respectively provided with a key and a keyway for transmitting rotary motion. By adopting the detachable sleeve 1c1, the staff can quickly replace the bundling tape roll 1c.

[0032] Further, the rotating device one 5 includes a driving gear 51 fixed on the driving shaft 2, a pair of driven gears 52 which are meshed with each other and are respectively fixed on the shafts of the two conveying wheels 4, and a transmission gear 53 which is meshed with the driving gear 51 and one of the driven gears 52. The driving gear 51, the driven gears 52 and the transmission gear 53 are meshed and transmitted in the special-shaped groove two 112. By adopting the rotating device one 5, when the servo motor 3 drives the driving shaft 2 to rotate, the driving gear 51 on the driving shaft 2 will first mesh with a transmission gear 53 to rotate, then the transmission gear 53 will mesh with another transmission gear 53 to rotate, and then the transmission gear 53 will mesh with a driven gear 52 to rotate. Since the two driven gears 52 are meshed with each other and are respectively fixedly connected with the shafts of the conveying wheels 4, the two conveying wheels 4 will synchronously and reversely rotate under the rotation of the driven gear 52, so as to realize the effect of rotating and clamping the bundling tape.

[0033] Further, the rotating device two 9 comprises a crank 91 fixedly connected with the driving shaft 2, a sliding block one 92 slidingly arranged in the special-shaped groove two 112, a connecting rod one 93 hingedly connected with the crank 91 and the sliding block one 92 respectively, a sliding block two 94 slidingly arranged in the hand hole two 114, a long slot one 95 arranged in the inner wall of the hand hole two 114 and communicating with the inside of the special-shaped groove two 112, an L-shaped rod 96 fixedly connected with the sliding block two 94 and extending into the special-shaped groove two 112 through the long slot one 95, and a connecting rod two 97 hingedly connected with the L-shaped rod 96 and the sliding block one 92 respectively.

[0034] By adopting the rotating device two 9, when the worker holds the hand hole two 114 and pinches and slides the sliding block two 94 upwards, firstly, the L-shaped rod 96 connected with the sliding block two 94 pulls the connecting rod two 97 up and down, then the connecting rod two 97 pulls the sliding block one 92 to slide away from the driving shaft 2, since the crank 91 and the sliding block one 92 are hingedly connected with the two ends of the connecting rod one 93 respectively, under the sliding of the sliding block one 92, the connecting rod one 93 pulls the crank 91 to overturn, finally, the crank 91 drives the rotating shaft 8 to rotate, so as to achieve the effect of controlling the rotating clamp plate 10 to clamp and loosen the end of the bundling belt one.

[0035] Further, the special-shaped groove two 112 is fixedly arranged with a support plate 112a below the hand hole two 114, a pair of upper and lower parallel guide rods one 112b are fixedly arranged between the support plate 112a and the inner wall of the special-shaped groove one 111, and the two guide rods one 112b slide through the sliding block one 92, the crank 91 and the connecting rod one 93 are movably arranged between the sliding block one 92 and the inner wall of the special-shaped groove two 112, one end of the connecting rod one 93 is hingedly connected with the side of the sliding block one 92 facing the bottom wall of the special-shaped groove two 112, the connecting rod two 97 is movably arranged between the sliding block one 92 and the rear shell cover 13, one end of the connecting rod two 97 is hingedly connected with the side of the sliding block one 92 away from the bottom wall of the special-shaped groove two 112, the L-shaped rod 96 is movably arranged on the side of the support plate 112a away from the guide rod one 112b, a spring 112c is sleeved on the guide rod one 112b, and two ends of the spring 112c are fixedly connected with the sliding block one 92 and the support plate 112a respectively; a pair of guide rods two 941 are fixedly arranged on the top of the sliding block two 94, and a sliding hole 114a for the guide rods two 941 to slide and insert is arranged in the inner top of the hand hole two 114.

[0036] By adopting the guide rods one 112b and the guide rods two 941, the sliding stability of the sliding block one 92 and the sliding block two 94 can be ensured respectively, and the spring 112c on the guide rod one 112b can pull the sliding block one 92 back to the initial position by using the elastic force of itself after the worker loosens the hand hole two 114, so that the rotating clamp plate 10 and the sliding block two 94 return to the initial state, for the subsequent bundling work.

[0037] Further, the automatic hot melting device 1a comprises a square recess one 1a1 formed on one side of the shell 11, a sliding block three 1a2 sliding in the square recess one 1a1, a hot pressing block 1a3 fixed on the bottom of the sliding block three 1a2 and internally provided with a heating element, an opening one 1a4 formed on the bottom of the square recess one 1a1 and allowing the hot pressing block 1a3 to pass through, a screw one 1a5 vertically rotatingly arranged in the square recess one 1a1, a circular hole one 1a6 formed on the top of the sliding block three 1a2 and allowing the screw one 1a5 to insert, a nut one 1a7 fixed on the top of the sliding block three 1a2 and threadedly connected with the screw one 1a5, a small motor one 1a8 driving the screw one 1a5 to rotate, and the opening one 1a4 is communicated with the square recess one 1a1 and the belt gap 7, the hot pressing block 1a3 is located above the rotating clamp plate 10, and when the rotating clamp plate 10 is horizontal, the hot pressing block 1a3 can clamp the heating bundling belt with the rotating clamp plate 10, the small motor one 1a8 is fixed on the top of the shell 11, and the output end of the small motor one 1a8 is rotatably connected with the top end of the screw one 1a5.

[0038] By using the above automatic hot melting device 1a, when it is needed to melt the two ends of the bundling belt, firstly, the small motor one 1a8 drives the screw one 1a5 to rotate, then the nut one 1a7 threadedly connected with the screw one 1a5 pushes the sliding block three 1a2 to slide downward relative to the square recess one 1a1, at the same time, the hot pressing block 1a3 on the bottom of the sliding block three 1a2 passes through the opening one 1a4 and extends into the belt gap 7, and finally, when the bottom of the hot pressing block 1a3 and the horizontal rotating clamp plate 10 are close to each other and clamp the two ends of the bundling belt, the high temperature on the hot pressing block 1a3 heats the two ends of the bundling belt, thereby realizing the automatic melting effect of the two ends of the bundling belt.

[0039] Further, the automatic cutting device 1b comprises a square recess two 1b1 formed on one side of the shell 11, a sliding block four 1b2 sliding in the square recess two 1b1, a cutter 1b3 fixed on the bottom of the sliding block four 1b2, an opening two 1b4 formed on the bottom of the square recess two 1b1 and allowing the cutter 1b3 to pass through, a screw two 1b5 vertically rotatingly arranged in the square recess two 1b1, a circular hole two 1b6 formed on the top of the sliding block four 1b2 and allowing the screw two 1b5 to insert, a nut two 1b7 fixed on the top of the sliding block four 1b2 and threadedly connected with the screw two 1b5, a small motor two 1b8 driving the screw two 1b5 to rotate, the opening two 1b4 is communicated with the square recess two 1b1 and the belt channel 6, the cutter 1b3 can cut the bundling belt in the belt channel 6 when it extends out of the opening two 1b4, and the bottom of the belt channel 6 is provided with a cutting groove 61 allowing the cutter 1b3 to insert, and the small motor two 1b8 is fixed on the top of the shell 11, and the output end of the small motor two 1b8 is rotatably connected with the top end of the screw two 1b5.

[0040] When the automatic cutting device 1b is used, when the bundling belt needs to be cut, first, the small motor 2 1b8 drives the screw 2 1b5 to rotate, then the nut 2 1b7 connected with the screw 2 1b5 is pushed to slide the slider 4 1b2 downward relative to the square groove 2 1b1, at the same time, the cutter 1b3 at the bottom of the slider 4 1b2 will pass through the opening 2 1b4 and extend into the belt channel 6, and finally the cutter 1b3 extends into the cutting groove 61 at the bottom of the belt channel 6, so that the bundling belt in the belt channel 6 can be cut off.

[0041] The working principle of the embodiment is as follows:

[0042] When the waste metal needs to be packed, first, the servo motor 3 drives the driving shaft 2 to rotate, so that the driving shaft 2 drives the bundling belt roll 1c to unroll, and at the same time, the rotating device 1 5 drives the two conveying wheels 4 to rotate in opposite directions synchronously, so that the bundling belt is clamped and sent into the belt channel 6; then the bundling belt is sent out from the conveying belt gap 7 under the guidance of the belt channel 6, and after the bundling belt is sent out for a certain length, the worker manually preliminarily winds the bundling belt around the waste metal, and at the same time, the worker passes one end of the bundling belt into the gap between the rotating clamp plate 10 and the bottom of the shell 11; then the rotating device 2 9 is used to drive the rotating shaft 8 to rotate, so that the rotating shaft 8 drives the rotating clamp plate 10 to flip, and cooperates with the bottom wall of the handheld shell 1 to clamp and fix one end of the bundling belt below the belt gap 7; then, the servo motor 3 and the conveying wheel 4 move in the opposite direction, so that the bundling belt is partially rewound into the bundling belt roll 1c, not only to tighten the bundling belt, but also to rewind the excess part of the bundling belt; until a certain tightening force is reached, the automatic cutting device 1b on the belt channel 6 will automatically cut the bundling belt, so as to obtain a bundling belt with appropriate length; finally, the automatic hot melting device 1a on the belt gap 7 will automatically melt and connect the two ends of the bundling belt which are cut and clamped respectively; after the melting is completed, the two ends of the bundling belt which are melted are pulled out from the belt gap 7, so that the complete bundling and packing of the waste metal is realized. The bundling and packing process of the handheld bundling frame described above not only realizes the rapid tightening of the bundling belt by automatically sending and rewinding the bundling belt, but also controls the length of the bundling belt within a relatively appropriate range while the bundling belt is being tightened, and then cooperates with the automatic cutting device 1b to automatically cut, so as to effectively overcome the problem of manual cutting of the bundling belt which is too long or too short.

Claims

1. A hand-held strapping machine characterized in that, The hand-held machine shell (1), the driving shaft (2) rotatably arranged in the hand-held machine shell (1), the servo motor (3) driving the driving shaft (2) to rotate, a pair of conveying wheels (4) arranged in parallel and rotatably arranged in the hand-held machine shell (1), the rotating device (5) driving the two conveying wheels (4) to rotate synchronously and reversely, the tape feeding channel (6) arranged in the hand-held machine shell (1) and used for the passing of the strapping tape, the tape feeding gap (7) arranged at one end of the hand-held machine shell (1) and connected with the tape feeding channel (6), the rotating shaft (8) rotatably arranged on the hand-held machine shell (1) and located at the tape feeding gap (7), the rotating device (9) driving the rotating shaft (8) to rotate, the rotating clamp plate (10) fixedly connected with the rotating shaft (8), the automatic hot melting device (1a) arranged on the hand-held machine shell (1) and located above the rotating clamp plate (10) and used for hot melting the strapping tape, and the automatic cutting device (1b) arranged in the hand-held machine shell (1) and located in the conveying channel and used for cutting the strapping tape. The driving shaft (2) is fixedly sleeved with the strapping tape roll (1c), the two conveying wheels (4) rotate to clamp and feed the strapping tape of the strapping tape roll (1c), the strapping tape roll (1c) and the tape feeding channel (6) are located on the two sides of the two conveying wheels (4), and the tape feeding channel (6) is horizontally located in the middle of the two conveying wheels (4), the tape feeding gap (7) is connected with one end of the tape feeding channel (6) away from the conveying wheel (4), and the rotating clamp plate (10) is located below the tape feeding channel (6) and is reversely movable, and when the rotating clamp plate (10) is horizontal, it can clamp one end of the strapping tape with the bottom wall of the hand-held machine shell (1).

2. A hand-held strapping machine according to claim 1, characterized in that: The hand-held machine shell (1) comprises a shell (11) and a pair of front shell covers (12) and rear shell covers (13), the shell (11) is provided with a special-shaped groove (111) on one side, the strapping tape roll (1c) and the conveying wheel (4) are movably arranged in the special-shaped groove (111), the tape feeding channel (6) and the tape feeding gap (7) are arranged on the side of the shell (11), the automatic hot melting device (1a) and the automatic cutting device (1b) are arranged on the side of the shell (11), the shell (11) is provided with a special-shaped groove (112) on the other side, the front shell cover (12) and the rear shell cover (13) are respectively detachably connected with the two sides of the shell (11), the front shell cover (12) covers the special-shaped groove (111) and the tape feeding channel (6), and the rear shell cover (13) covers the special-shaped groove (112), the shafts of the conveying wheels (4) and the rotating shaft (8) are rotatably arranged in the shell (11) and extend into the special-shaped groove (112), the rotating device (5) and the rotating shaft (8) are located in the special-shaped groove (112) and respectively drive the shafts of the two conveying wheels (4) and the rotating shaft (8) to rotate, the driving shaft (2) rotatably extends through the shell (11) and rotatably extends out of the front shell cover (12) and the rear shell cover (13) at two ends, and the servo motor (3) is fixed on the rear shell cover (13) and the output end of the servo motor (3) is connected with one end of the driving shaft (2) extending out of the rear shell cover (13).

3. A hand-held strapping machine according to claim 2, characterised in that: The shell (11), the front shell cover (12) and the rear shell cover (13) are provided with a handheld hole one (113) and a handheld hole two (114) together, the handheld hole one (113) is located above the special-shaped groove one (111) and in the middle of the special-shaped groove two (112), and the handheld hole two (114) is located above the tape feeding channel (6) and in the middle of the special-shaped groove two (112).

4. A hand-held strapping machine according to claim 2, characterised in that: A plurality of insertion columns (121) are fixedly arranged on the side of the front shell cover (12) facing the special-shaped groove one (111), and a plurality of insertion holes (115) for tightly inserting the insertion columns (121) are formed in one side of the shell (11); a plurality of nuts (116) are fixedly arranged on the bottom wall of the special-shaped groove two (112), and screws (131) are threaded through the nuts (116) and inserted into the rear shell cover (13).

5. A hand-held strapping machine according to claim 2, wherein: A detachable sleeve (1c1) is fixedly inserted into the center of the bundling tape roll (1c), the detachable sleeve (1c1) is sleeved on the driving shaft (2), and the outer wall of the driving shaft (2) and the inner wall of the detachable sleeve (1c1) are respectively provided with a flat key and a key groove for transmitting rotary motion.

6. A hand-held strapping machine according to claim 2, characterized in that: The rotating device one (5) comprises a driving gear (51) fixed on the driving shaft (2), a pair of driven gears (52) fixed on the shafts of the two conveying wheels (4) and meshing with each other, and a transmission gear (53) meshing with the driving gear (51) and one driven gear (52) and fixed on the shafts of the two conveying wheels (4) and meshing with each other, the driving gear (51), the driven gears (52) and the transmission gear (53) are located in the special-shaped groove two (112) and mesh with each other.

7. A hand-held strapping machine according to claim 3, wherein: The rotating device two (9) comprises a crank (91) fixedly connected to one end of the driving shaft (2), a sliding block one (92) slidingly arranged in the special-shaped groove two (112), a connecting rod one (93) hingedly connected to the crank (91) and the sliding block one (92) at two ends, a sliding block two (94) slidingly arranged in the handheld hole two (114), a long slot one (95) formed in the inner wall of the handheld hole two (114) and communicating with the inside of the special-shaped groove two (112), an L-shaped rod (96) fixedly connected to one end of the sliding block two (94) and extending into the special-shaped groove two (112) through the long slot one (95), and a connecting rod two (97) hingedly connected to the L-shaped rod (96) and the sliding block one (92) at two ends.

8. A hand-held strapping machine according to claim 7, characterised in that: The special-shaped groove two (112) is fixedly provided with a support plate (112a) below the handheld hole two (114), a pair of upper and lower parallel guide rods one (112b) are fixedly arranged between the support plate (112a) and the inner wall of the special-shaped groove one (111), and the two guide rods one (112b) slide relative to each other and pass through the sliding block one (92), the crank (91) and the connecting rod one (93) are located between the sliding block one (92) and the inner wall of the special-shaped groove two (112) and are movable, one end of the connecting rod one (93) is hingedly connected to the side of the sliding block one (92) facing one side of the bottom wall of the special-shaped groove two (112), the connecting rod two (97) is located between the sliding block one (92) and the rear shell cover (13) and is movable, one end of the connecting rod two (97) is hingedly connected to the side of the sliding block one (92) facing away from the bottom wall of the special-shaped groove two (112), the L-shaped rod (96) is located on the side of the support plate (112a) away from the guide rod one (112b) and is movable, the spring (112c) is sleeved on the guide rod one (112b), and the two ends of the spring (112c) are fixedly connected to the sliding block one (92) and the support plate (112a) respectively; a pair of guide rods two (941) are fixedly arranged on the top of the sliding block two (94), and a sliding hole (114a) is formed in the inner top of the handheld hole two (114) and is used for sliding insertion of the guide rod two (941).

9. A hand-held strapping machine according to claim 2, characterized in that: The automatic hot melting device (1a) comprises a square groove one (1a1) formed in one side of a shell (11), a sliding block three (1a2) sliding in the square groove one (1a1), a hot pressing block (1a3) fixed to the bottom of the sliding block three (1a2) and internally provided with a heating element, an opening one (1a4) formed in the bottom of the square groove one (1a1) and used for the hot pressing block (1a3) to pass out, a screw one (1a5) vertically rotatingly arranged in the square groove one (1a1), a circular hole one (1a6) formed in the top of the sliding block three (1a2) and used for the screw one (1a5) to insert, a nut one (1a7) fixed to the top of the sliding block three (1a2) and threadedly connected with the screw one (1a5), and a small-sized motor one (1a8) driving the screw one (1a5) to rotate, the opening one (1a4) is communicated with the square groove one (1a1) and the tape gap (7), the hot pressing block (1a3) is located above the rotating clamp plate (10), and when the rotating clamp plate (10) is horizontal, the hot pressing block (1a3) can clamp the heating binding tape with the rotating clamp plate (10), the small-sized motor one (1a8) is fixed to the top of the shell (11), and the output end of the small-sized motor one (1a8) rotates and penetrates into the square groove one (1a1) to connect the top end of the screw one (1a5).

10. A hand-held strapping machine according to claim 2, characterized in that: The automatic cutting device (1b) comprises a square recess two (1b1) opened on one side of the shell (11), a slider four (1b2) sliding in the square recess two (1b1), a cutter (1b3) fixed on the bottom of the slider four (1b2), an opening two (1b4) opened on the bottom of the square recess two (1b1) and passing through the cutter (1b3), a screw two (1b5) vertically rotating in the square recess two (1b1), a circular hole two (1b6) opened on the top of the slider four (1b2) and inserted by the screw two (1b5), a nut two (1b7) fixed on the top of the slider four (1b2) and threadedly connected with the screw two (1b5), and a small motor two (1b8) driving the screw two (1b5) to rotate, the opening two (1b4) is communicated with the square recess two (1b1) and the belt feeding channel (6), the cutter (1b3) can cut the bundling belt in the belt feeding channel (6) when extending out of the opening two (1b4), and the bottom of the belt feeding channel (6) is provided with a cutting groove (61) for inserting the cutter (1b3), the small motor two (1b8) is fixed on the top of the shell (11), and the output end of the small motor two (1b8) is rotatably inserted into the square recess two (1b1) and connected with the top end of the screw two (1b5).

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