Steel bar binding machine

Abstract

The invention relates to the related technical field of building construction tools, discloses a reinforcing steel bar binding machine, and aims to solve the problem that an operator needs to continuously squat and stand during reinforcing steel bar binding. Two semi-cylindrical binding rotating bodies are arranged in an outer protective sleeve, and after the operator penetrates through the outer protective sleeve from a cross node of a reinforcing steel bar to be bound, the binding rotating bodies are fixed through the two semi-cylindrical binding rotating bodies; the binding wire between the binding rotating bodies can be tightly pressed on a rebar node, the rebar node is extruded by the wire tightening push frame along with downward pressing of the telescopic push rod, gaps of the rebar node are avoided, the binding rotating bodies are forced to rotate through movement of the wire tightening push frame, and therefore the two ends of the binding wire for binding the rebar node are wound and fastened. Therefore, fixation of the steel bar nodes is achieved. Due to the fact that the telescopic push rod can freely stretch out and be locked, an operator can complete the binding work of the reinforcing steel bars only by standing, and finally the effect that the operator can complete the binding work of the reinforcing steel bars by standing is achieved.

Description

Technical Field

[0001] The present application relates to the technical field related to construction tools, and in particular to a steel bar binding machine. Background Art

[0002] The core purpose of steel bar binding is to accurately fix the steel bars at the positions and spacings specified in the design drawings to build a stable steel bar skeleton system. This skeleton is not only responsible for bearing the deadweight and external loads of the building, but also effectively transmits these forces to the foundation to ensure the overall stability and safety of the structure. Through the sophisticated binding process, a tight and reliable connection network is formed between the steel bars, which significantly improves the bearing capacity and earthquake resistance and disaster reduction capabilities of the building structure.

[0003] At present, the steel bar binding operation mainly relies on manual operation, which requires operators to have high professional skills and patience. During the binding process, workers need to carefully pass the binding wire through the intersection of the cross-arranged steel bars and use the binding hook to deftly tighten the binding wire. However, this traditional manual method undoubtedly increases the labor intensity of the operator, reduces work efficiency, and may cause unstable binding quality due to human factors.

[0004] In order to reduce the labor burden and improve the efficiency of tying, some construction sites have introduced handheld automated tying equipment. Although these devices have achieved mechanized operation to a certain extent, construction workers often need to squat when using such equipment to ensure that the equipment can accurately align and tighten the steel bars, which undoubtedly increases the physical burden of construction workers, and long-term work may also cause health problems. Summary of the invention

[0005] The present application proposes a steel bar tying machine, which has the advantage that an operator can complete steel bar tying while standing, so as to solve the problem in the above background technology that an operator needs to squat continuously when tying steel bars.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a steel bar binding machine, comprising: an outer protective sleeve, a tension spring is connected between the outer protective sleeves, and a bundling swivel is movably installed inside the outer protective sleeve, and the bottom of the outer protective sleeve is fastened to the telescopic push rod; the bundling swivel comprises: a mounting plate, which is movably connected to the inner side of the outer protective sleeve; a driven gear, which is located below the mounting plate, and a bundling gear meshing with the outer teeth of the driven gear is movably installed on the side of the outer protective sleeve, and the bundling gear is driven by a power mechanism to rotate; a rope winding ring body, which is fastened below the driven gear, and a traction rope is fixedly installed on the middle part of the outer side of the rope winding ring body, a rope drum is movably installed on the inner side of the outer protective sleeve, and the traction rope is wound around the outer side of the rope drum, and a reset torsion spring is connected between the top of the rope drum and the outer protective sleeve; a wire hole is provided at the bottom of the rope winding ring body, and a wire passing hole is provided in the middle.

[0007] Furthermore, a wire tensioning plate is movably installed at the bottom of the bundling swivel, and a wire tensioning spring is connected between the wire tensioning plate and the bundling swivel, and a wire through hole communicated with the wire hole is opened on the wire tensioning plate; a wire tensioning top frame is movably installed at the bottom of the inner side of the outer protective cover, and a wire tensioning top frame and the outer protective cover are connected with a wire tensioning spring; a wire tensioning pushing frame is movably installed on the side of the wire tensioning top frame, and a lifting spring is connected between the wire tensioning pushing frame and the outer protective cover.

[0008] Furthermore, a wire feeding hole communicating with the wire hole is opened on the side of the outer protective cover.

[0009] Furthermore, the first power mechanism is composed of an electric motor.

[0010] Furthermore, the second power mechanism includes: a driving gear, which is coaxially fastened with the bundling gear; a driving gear row, which is installed at the bottom of the outer protective sleeve, and the driving gear row and the driving gear are unidirectionally meshed and transmitted; and a bundling top spring, which is arranged between the driving gear row and the outer protective sleeve.

[0011] Furthermore, a fixed magnetic block is fixedly installed on the inner side of the outer protective sleeve, a movable magnetic block that is magnetically attracted to the fixed magnetic block is fixedly installed on the driving gear row, and a magnetic isolation baffle located between the fixed magnetic block and the movable magnetic block is fixedly installed on the bottom of the tensioning top frame.

[0012] Furthermore, a limiting slider is fastened to the top of the driving gear row, and a limiting groove corresponding to the magnetic isolation baffle is provided on the top of the limiting slider, and a compressive spring is fixedly installed on the bottom inner side of the tensioning top frame.

[0013] Furthermore, the limiting slider is in the shape of a right-angled trapezoid.

[0014] Furthermore, a wire drum is movably installed on the side of the outer protective sleeve, and a wire tie is wound on the outer side of the wire drum. The inner side of the outer protective sleeve is symmetrically arranged with wire feed pressure wheels on both sides of the wire feeding hole. A wire feed gear that is unidirectionally meshed with the driving gear row is fixedly installed on the rotating shaft of one wire feed pressure wheel.

[0015] The present invention has the following beneficial effects:

[0016] The present application provides a steel bar tying machine, which is designed to improve tying efficiency and reduce the workload of operators. The core component of the machine is an outer protective cover, inside which two semi-cylindrical tying swivels are carefully configured, which are designed for efficient fastening of steel bar nodes. When the operator easily passes the outer protective cover through the cross intersection of the steel bars to be tied, the built-in tying wire is immediately positioned on the intersection.

[0017] As the telescopic push rod is pressed down precisely, the wire tensioning push frame will be pressed on the steel bar node. It not only fits tightly and squeezes the steel bar intersection, effectively eliminating the possible gap, but also drives the two binding swivels to rotate synchronously through its ingenious mechanical linkage mechanism. This rotation action ingeniously wraps the two ends of the binding wire tightly around the steel bar intersection, forming a firm binding effect, ensuring the stability and load-bearing capacity of the steel bar skeleton.

[0018] The telescopic push rod of the lashing machine has the function of freely adjusting the length and manually locking it. This design completely overturns the traditional working mode in which operators need to squat frequently during lashing operations. Now, operators only need to stand to complete the entire lashing process by operating the lashing machine, which greatly improves work efficiency, reduces physical burden, and reduces the risk of occupational injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute a part of the specification, illustrate the embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0020] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0021] Figure 1 It is a schematic diagram of the overall external three-dimensional structure;

[0022] Figure 2 It is a schematic diagram of the internal planar cross-sectional structure of the outer protective cover;

[0023] Figure 3 for Figure 2 The enlarged structural diagram at E in the middle;

[0024] Figure 4 It is a schematic diagram of the location of the bundling gear and the three-dimensional structure of the drive;

[0025] Figure 5 It is a schematic diagram of the location of the bundling gear and the three-dimensional structure of the drive;

[0026] Figure 6 It is a schematic diagram of the position of the tensioning push frame and the driving three-dimensional structure;

[0027] Figure 7 It is a schematic diagram of the bottom plane structure of the outer protective cover;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the bundling swivel;

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the tensioning plate;

[0030] Fig.10 This is a schematic diagram of the bundling delivery point between two steel bars.

[0031] In the figure: 1, outer protective cover; 100, wire feeding hole; 101, wire drum; 102, close tension spring; 2, telescopic push rod; 3, tying gear; 300, driving gear; 4, tensioning top frame; 400, top wire spring; 5, tying swivel; 500, mounting plate; 501, driven gear; 502, rope winding ring; 503, wire hole; 504, wire hole; 6, rope drum; 600, traction rope; 601, reset torsion spring; 7, wire tensioning plate; 700, wire through hole; 701, wire tensioning spring; 8, wire tensioning push frame; 800, lifting spring; 9, driving gear row; 10, bundling top spring; 11, limiting slider; 110, limiting groove; 12, wire feed gear; 13, wire feed pressure wheel; 14, fixed magnetic block; 140, movable magnetic block; 15, magnetic isolation baffle; 16, re-compression spring; A, bundling point. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] Example 1 Please refer to Figure 1 , Figure 2 and Figure 3 It can be seen that the outer protective cover 1 is the main bearing part of the whole device, and there are two of them. The two outer protective covers 1 are connected by a guide slider, so that the two outer protective covers 1 can only move away from / close to each other in the radial direction. A close tension spring 102 is connected between the outer protective covers 1, and under the elastic pulling of the close tension spring 102, the two outer protective covers 1 are forced to always have a tendency to move relatively close to each other.

[0034] The outer protective cover 1 is provided with a swivel 5 movably mounted inside. Figure 8 It can be seen that the bundle swivel 5 has a semi-cylindrical shape, and there are two bundle swivels 5. When the two bundle swivels 5 are attached together, they can form a complete cylinder. Figure 2 , Figure 4 and Figure 8 It can be seen that the bundling swivel 5 is mainly composed of a mounting plate 500, a driven gear 501 and a rope winding ring 502, wherein the mounting plate 500 located at the top is movably connected to the inner side of the outer protective cover 1, so that the bundling swivel 5 can rotate on the inner side of the outer protective cover 1.

[0035] The driven gear 501 is located below the mounting plate 500, and is a semicircular gear. When the two strapping rotators 5 are fitted together, the driven gears 501 on the two strapping rotators 5 can form a complete gear. Correspondingly, a strapping gear 3 meshing with the outer teeth of the driven gear 501 is movably mounted on the side of the outer protective cover 1. The strapping gear 3 can generally be connected to a motor, and the driving motor can provide power for the rotation of the strapping gear 3, thereby ensuring that the fitted driven gears 501 can rotate continuously.

[0036] The rope ring body 502 is fastened to the lower part of the driven gear 501, and a traction rope 600 is fixedly installed in the middle of the outer side of the rope ring body 502. Figure 4 It can be seen that a rope drum 6 is movably installed on the inner side of the outer protective cover 1, and the traction rope 600 is wound on the outer side of the rope drum 6. A reset torsion spring 601 is connected between the top of the rope drum 6 and the outer protective cover 1. Under normal conditions, when the elastic force of the reset torsion spring 601 is restored, the rope drum 6 is forced to reel in the traction rope 600, and the traction rope 600 is used to pull the bundling swivel 5, so that the semicircular bundling swivel 5 will not fall off the outer protective cover 1. When the two bundling swivels 5 are attached and driven by the bundling gear 3 to rotate, the traction rope 600 can be reeled in around the outer side of the rope ring body 502, so that the traction rope 600 can be used to bundle the two semicircular bundling swivels 5, ensuring the stability of the entire cylinder formed by the two bundling swivels 5, and avoiding the accidental disengagement of the two bundling swivels 5 when they are attached and driven by the bundling gear 3 to rotate.

[0037] A wire hole 503 is provided at the bottom of the rope ring body 502, and the wire hole 503 can be used to pass the binding wire, so as to facilitate the subsequent bundling of the nodes of the steel bars. At the same time, a wire hole 504 is provided in the middle of the bundling swivel 5, and the cross-sectional shape of the wire hole 504 is semicircular. Therefore, when the two bundling swivels 5 are fitted together, the gap left by the wire hole 504 will not cause the binding wire between the two wire holes 503 to be excessively squeezed together.

[0038] Combination Figure 1 It can be seen that the bottom of the outer protective cover 1 is fastened to the telescopic push rod 2, and the telescopic push rod 2 can be freely extended and retracted. The telescopic push rod 2 can be locked after being extended by the fastening bolt in the middle of the telescopic push rod 2, so that the extended length of the telescopic push rod 2 can be adapted to operators of different heights. Figure 2 It can be clearly seen that the upper and lower ends of the outer protective cover 1 are provided with guiding inclined portions, so as to facilitate the steel bar node to pass through / detach from between the two outer protective covers 1.

[0039] In actual application, the operator passes the binding wire through the wire hole 503 by holding the telescopic push rod 2. Specifically, Fig.10As shown, two outer protective covers 1 are inserted into the corresponding binding points A respectively, and then, blocked by the cross node of the steel bars, the two outer protective covers 1 are forced to move relatively far away and compress close to the tension spring 102. Although the two outer protective covers 1 are relatively far away, they are restricted by the return torsion spring 601 on the rope drum 6, forcing the rope drum 6 to reel in the traction rope 600 and pull the binding swivel 5 to always stick to the outer protective covers 1, thereby restricting the binding swivel 5 from escaping from the inner side of the outer protective covers 1.

[0040] Afterwards, as the tying swivel 5 passes through the two tying points A respectively, the steel bar nodes will also pass through the wire holes 503, and the tying wire will be pressed on the steel bar nodes. When the outer protective cover 1 completely passes through the steel bar nodes, the outer protective cover 1 is pulled close to each other by the elastic force of the close tension spring 102, and finally, the tying swivel 5 is attached together.

[0041] In the first embodiment, the telescopic push rod 2 is built with a battery and a control switch. When the tying rotatable bodies 5 are attached to each other, the control switch is used to drive the motor and the power supply to connect, so that the tying gear 3 drives the driven gear 501 to rotate. Since the two tying rotatable bodies 5 are attached to each other, the two driven gears 501 will form a complete gear, so the driven gear 501 will continue to rotate with the tying gear 3; at the same time, the rotation of the rope ring body 502 will reel the traction rope 600, thereby forcing the rope drum 6 to unwind and compress the reset torsion spring 601. As the tying rotatable body 5 rotates, the wire hole 503 drives the binding wire to rotate relatively and bind and tighten until the binding wire is detached from the wire hole 503. When the binding wire is completely wound, the switch causes the motor to drive the binding gear 3 to stop rotating. Under the elastic reset of the reset torsion spring 601, the rope drum 6 is forced to drive the traction rope 600 to reel in and rotate the binding swivel 5 in the opposite direction until the traction rope 600 is completely wound into the rope drum 6. The traction rope 600 pulls the binding swivel 5 so that the binding swivel 5 cannot be separated from the outer protective cover 1.

[0042] Finally, the operator only needs to pull the outer protective cover 1 out of the steel bar node to complete the binding and fixing of the steel bar node. After that, the operator inserts the outer protective cover 1 into other steel bar nodes again to complete the binding work of the steel bar node while standing.

[0043] Embodiment 2 is a further improvement on the basis of embodiment 1. In order to facilitate the fastening of the binding wire, please refer to Figure 2 , Figure 3 , Figure 6 and Fig. 9 It can be clearly seen that a semicircular tensioning plate 7 is movably mounted at the bottom of the bundling swivel 5, and a tensioning spring 701 is connected between the tensioning plate 7 and the bundling swivel 5. Under normal conditions, the tensioning spring 701 pushes the tensioning plate 7 to always move away from the bundling swivel 5. A through hole 700 is provided on the tensioning plate 7, which is connected to the wire hole 503. Fig. 9 It can be clearly seen that the wire tightening spring 701 is installed above the wire through hole 700. Therefore, when the wire through hole 700 and the wire hole 503 are connected, the wire can pass through the wire hole 503 without hindrance. After the wire enters the wire hole 503, the wire tightening pressure plate 7 pushed outward by the elastic force of the wire tightening spring 701 will drive the wire through hole 700 to be pushed outward synchronously, and the relative offset between the wire through hole 700 and the wire hole 503 is utilized to clamp the wire, thereby ensuring that the two ends of the wire can be relatively tightened after the wire is sent into the wire hole 503.

[0044] Combination Figure 2-Figure 4 as well as Figure 6 It can be seen that a tensioning top frame 4 is movably installed at the bottom of the inner side of the outer protective cover 1, and a top wire spring 400 is connected between the tensioning top frame 4 and the outer protective cover 1. The tensioning top frame 4 is pushed by the elastic force of the top wire spring 400 to force the tensioning top frame 4 to move upward and press against the tensioning pressure plate 7. When the tensioning pressure plate 7 is pushed by the tensioning top frame 4, it will suppress the tensioning spring 701 and make the wire hole 503 communicate with the wire hole 700. A tensioning push frame 8 is movably installed on the side of the tensioning top frame 4 via a slider, so that the tensioning push frame 8 can move up and down along the side of the tensioning top frame 4. At the same time, a guide tube is connected between the tensioning push frame 8 and the inner bottom of the outer protective cover 1, and a lifting spring 800 located on the outer side of the guide tube is connected between the tensioning push frame 8 and the outer protective cover 1. The tensioning push frame 8 is pushed by the elastic force of the lifting spring 800 to move upward, so that the top of the tensioning push frame 8 is pressed against the tensioning pressure plate 7, so that the tensioning pressure plate 7 presses the tensioning spring 701. It can be known from the content of the first embodiment that there are two tying swivels 5, and correspondingly, there are two tensioning pressure plates 7. The tensioning push frame 8 and the tensioning top frame 4 are used to push the two tensioning pressure plates 7 respectively, so that the binding wire can pass through the wire hole 503 easily.

[0045] In actual application, under normal conditions, the outer protective sleeves 1 are pulled together by the elastic force of the close tension spring 102 to make the bundling swivel 5 close together, the tensioning push frame 8 is pushed against the tensioning pressure plate 7 by the elastic force of the lifting spring 800, and the tensioning top frame 4 is pushed against another tensioning pressure plate 7 by the elastic force of the top spring 400. At this time, Figure 2 As shown, the wire hole 503 and the wire hole 700 are connected. After the operator passes the tie wire through the right wire hole 503 and the wire hole 700, the end of the tie wire will continue to move horizontally relatively and enter the left wire hole 503 and the wire hole 700 until the tie wire passes through the two wire holes 700.

[0046] Afterwards, the telescopic push rod 2 passes the outer protective cover 1 through the steel bar node. When the steel bar node passes over the bundling swivel 5, it will first push the wire tightening push frame 8 and compress the lifting spring 800. The wire tightening push frame 8 moves downward along the side of the wire tightening top frame 4 through the slider. At the same time, the wire tightening push frame 8 releases the pressure on the wire tightening pressure plate 7. The wire tightening pressure plate 7 here is pushed by the elastic force of the wire tightening spring 701, so that the wire tightening spring 701 and the wire hole 503 are staggered with each other, thereby clamping one end of the binding wire inserted into the wire hole 503. Since the top wire spring 400 is pushed by the elastic force to make the wire tightening top frame 4 press against another wire through hole 700, the wire tightening pressure plate 7 pushed by the wire tightening top frame 4 will make the wire hole 503 and the wire through hole 700 continue to be connected.

[0047] As the tensioning push frame 8 is pressed on the steel bar nodes, the squeezing force between the steel bar nodes is increased to prevent the steel bar nodes from being loosened. At the same time, since the through hole 700 at the top of the tensioning top frame 4 is connected to the wire hole 503, as the tensioning push frame 8 is blocked by the steel bar nodes and moves away from the bundling swivel 5, the binding wire in the wire hole 503 is also continuously extended and continuously input from the wire hole 503 connected to the through hole 700. As the tensioning push frame 8 is continuously pressed and compresses the lifting spring 800, when the slider on the tensioning push frame 8 moves to the bottom of the tensioning top frame 4, it will further push the tensioning top frame 4 downward to press the top wire spring 400, so that the tensioning top frame 4 is also relatively far away from the tensioning pressure plate 7. At this time, the two tensioning pressure plates 7 are not pressed, and are pushed by the elastic force of the tensioning spring 701, forcing the two ends of the binding wire to be pressed and tightened in the wire hole 503.

[0048] Afterwards, the driven gear 501 is driven to rotate by the tying gear 3, so that the wire hole 503 rotates along with the tying rotator 5, and the tying wire is wound by the rotation, and the tying wire is continuously wound as the rotation continues. Finally, the tying wire is wound and pulled away from the wire hole 503, thereby completing the tying and tightening of the tying wire.

[0049] On this basis, in order to prevent the binding wire from being too long and causing the binding swivel 5 to be wound for too long, Figure 2 and Figure 4 It can be seen that a wire feeding hole 100 communicating with the wire hole 503 is provided on the side of the outer protective cover 1. When the binding wire passes through the wire hole 503 from the outside through the wire feeding hole 100, the excessively long binding wire will remain outside the wire feeding hole 100. When the bundling swivel 5 and the outer protective cover 1 rotate relative to each other, the relative offset between the wire hole 503 and the wire feeding hole 100 is utilized to apply a shearing force to the binding wire, and finally the excessively long binding wire is cut off.

[0050] Embodiment 3 is a further improvement on the basis of Embodiment 2. As another driving method of the tying gear 3, please refer to Figure 2 , Figure 3 and Figure 5It can be clearly seen that a driving gear 300 is fixedly mounted on the rotating shaft of the tying gear 3, and correspondingly, a driving gear row 9 is movably mounted on the bottom of the outer protective sleeve 1, and the driving gear row 9 and the driving gear 300 are in one-way meshing transmission. Figure 2 It can be clearly seen that a bundling top spring 10 is connected between the driving gear row 9 and the outer protective cover 1. The driving gear row 9 always has a tendency to be pushed outwards by the elastic force of the bundling top spring 10. At the same time, the driving gear row 9 is meshed with the driving gear 300, so that the driving gear 300 drives the bundling gear 3 to rotate synchronously during the pushing process of the driving gear row 9. When the bundling gear 3 rotates, it can drive the driven gear 501 to drive the rope ring body 502 to rotate synchronously, and finally the wire hole 503 is rotated to realize the bundling and tightening of the steel bar node by the binding wire.

[0051] On this basis, refer to Figure 2 , Figure 3 and Figure 7 It can be seen that a fixed magnet 14 located above the driving gear row 9 is fixedly installed on the inner side of the outer protective cover 1, and correspondingly, a movable magnet 140 opposite to the magnetic surface of the fixed magnet 14 is fixedly installed on the driving gear row 9. The movable magnet 140 and the fixed magnet 14 are magnetically attracted to each other. When the magnetic surfaces of the two are opposite to each other, the magnetic attraction between the two can force the movable magnet 140 to drive the driving gear row 9 to move toward the fixed magnet 14, and compress the bundling top spring 10 while the driving gear row 9 moves. A magnetic shielding plate 15 located between the fixed magnetic block 14 and the movable magnetic block 140 is fixedly installed at the bottom of the tensioning top frame 4. Under normal conditions, the tensioning top frame 4 is pushed by the elastic force of the top line spring 400 to drive the magnetic shielding plate 15 to move upward, so that the magnetic shielding plate 15 will not block the relative magnetic surfaces between the fixed magnetic block 14 and the movable magnetic block 140; when the tensioning top frame 4 is pushed downward, the magnetic shielding plate 15 is used to block the fixed magnetic block 14, thereby isolating the relative magnetic surfaces between the fixed magnetic block 14 and the movable magnetic block 140. When the fixed magnetic block 14 and the movable magnetic block 140 are blocked by the magnetic shielding plate 15, the driving gear row 9 is only pushed by the elastic force of the bundling top spring 10, forcing the driving gear row 9 to be pushed outward and drive the driving gear 300 to rotate.

[0052] Furthermore, combined Figure 2 and Figure 3 It can be clearly seen that the top of the driving gear row 9 is fastened to the limit slider 11, and one end of the limit slider 11 is fastened to the binding top spring 10. Figure 2It can be seen that the limiting slider 11 is in the shape of a right-angle trapezoid. A limiting groove 110 corresponding to the magnetic isolation baffle 15 is provided on the top of the limiting slider 11, so that the magnetic isolation baffle 15 can be inserted into the limiting groove 110, and the extension of the driving gear row 9 is limited by the magnetic isolation baffle 15. At the same time, when the limit slider 11 passes through the magnetic isolation baffle 15, the inclined surface of the limit slider 11 will push the magnetic isolation baffle 15 upward. At this time, the magnetic isolation baffle 15 still isolates the fixed magnetic block 14 and the movable magnetic block 140. As the magnetic isolation baffle 15 goes up, it will force the tensioning top frame 4 to push the tensioning pressure plate 7 to have an upward movement. The tensioning pressure plate 7 squeezes the tensioning spring 701 to increase the connecting space between the wire hole 700 and the wire hole 503, thereby reducing the squeezing of the wire. Since the limit slider 11 is located on the left side of the driving gear row 9, when the limit slider 11 reaches the magnetic isolation baffle 15, the driven gear 501 has driven the rope ring body 502 to rotate a specified number of times, and the wire has been tied. As the wires continue to be entangled and tied with each other, the wire hole 700 releases the pressure on the wire, and the wire will detach from the wire hole 503, thereby avoiding the phenomenon that the wire hole 700 excessively squeezes the wire, making it difficult to detach. In order to allow the tensioning top frame 4 to have a certain amount of upward movement space, a compressing spring 16 is fixedly installed at the bottom inner side of the tensioning top frame 4. The elastic force of the compressing spring 16 is greater than the elastic force of the top line spring 400. When the slider on the tensioning push frame 8 is pressed downward, it will first hit the compressing spring 16. Since the elastic force of the compressing spring 16 is relatively large, it will first push the tensioning top frame 4 to press the top line spring 400. When the magnetic isolation baffle 15 is pushed upward by the limiting slider 11, the compressing spring 16 can be further squeezed between the tensioning top frame 4 and the tensioning push frame 8, so that the tensioning top frame 4 has a certain amount of upward space.

[0053] In order to facilitate the application of operators, this application also configures the automatic online function. Figure 1 It can be seen that a wire drum 101 is movably installed on the side of the outer protective cover 1 and is located on one side of the wire feeding hole 100. The outer side of the wire drum 101 is wound with a tie wire, and the tie wire passes through the wire feeding hole 100 and is transported to the wire hole 503. In order to provide a sufficient amount of tie wire, a plurality of wire drums 101 are provided, and the plurality of wire drums 101 are arranged at equal angles on the side of the outer protective cover 1, thereby ensuring that the outer protective cover 1 can carry enough tie wire for the operator to work for a long time. Figure 2It can be seen that the inner side of the outer protective cover 1 is symmetrically arranged with wire feed pressure wheels 13 located on both sides of the wire feeding hole 100, and a wire feed gear 12 that is unidirectionally meshed with the driving gear row 9 is fixedly installed on the rotating shaft of one wire feed pressure wheel 13. It can be explained that after the wire is fed into the wire feeding hole 100, it will be clamped by the two wire feed pressure wheels 13. When the driving gear row 9 is retracted due to the magnetic force of the fixed magnetic block 14 and the movable magnetic block 140, the transmission between the wire feed gear 12 and the driving gear row 9 forces the wire feed pressure wheel 13 to rotate. When the wire feed pressure wheel 13 rotates, it will convey the clamped wire into the wire hole 503, so as to ensure that the wire can be fed in autonomously without human intervention.

[0054] In actual application, under normal conditions, the outer protective cover 1 is in a relatively close state under the elastic force of the close tension spring 102, the two bundling swivels 5 are stuck together, and the rope drum 6 reels the traction rope 600. The tensioning push frame 8 is pushed to the bottom of the tensioning pressure plate 7 by the elastic force of the lifting spring 800, and the tensioning top frame 4 is pushed upward by the slider of the tensioning push frame 8 and moves upward under the elastic force of the top spring 400 until the tensioning top frame 4 is against the tensioning pressure plate 7. At this time, the tensioning top frame 4 also pulls the magnetic isolation baffle 15 to separate from the fixed magnetic block 14, and under the magnetic attraction between the fixed magnetic block 14 and the movable magnetic block 140, the driving gear row 9 is retracted into the outer protective cover 1 and the bundling top spring 10 is compressed. Figure 2 Shown is the position and status diagram of each component in the initial state.

[0055] When the operator needs to tie the steel bar node, the wire on the wire drum 101 passes through the wire feeding wheel 13 and enters the wire hole 503, and finally extends out from the wire feeding hole 100 on the other side of the outer protective cover 1. As the operator pushes the outer protective cover 1 to the steel bar node, Figure 2 and Fig.10 As shown in the example, the top of the outer protective cover 1 is pushed away by the steel bar node, so that the two outer protective covers 1 enter the two binding points A correspondingly, thereby driving the binding swivel 5 to open relatively. When the steel bar node passes through the binding swivel 5, the binding wire in the wire hole 503 will reach the steel bar node. As the steel bar passes over the binding swivel 5, the wire tensioning push frame 8 will be squeezed and pressed downward. When the wire tensioning push frame 8 is blocked by the steel bar node and moves away from the left wire tensioning plate 7, the left wire tensioning plate 7 moves downward under the elastic force of the wire tensioning spring 701, and the wire hole 700 and the wire hole 503 are relatively staggered, so as to clamp and tighten the left end of the binding wire.

[0056] As the telescopic push rod 2 continues to push, the tensioning push frame 8 is blocked by the steel bar node and continues to move downward. During this process, the tensioning pressure plate 7 on the right side is always pushed by the tensioning top frame 4 and reaches the tensioning pressure plate 7. Therefore, the right wire hole 503 can continuously input the binding wire, ensuring that the binding wire will not be broken when the steel bar node is relatively far away from the binding swivel 5. When the tensioning push frame 8 moves downward and contacts the recompression spring 16, the downward tensioning push frame 8 uses the recompression spring 16 to push the tensioning top frame 4 to further compress the top wire spring 400, so that the tensioning top frame 4 pushes the magnetic isolation baffle 15 downward and blocks it between the fixed magnetic block 14 and the movable magnetic block 140. At the same time, the downward movement of the tensioning top frame 4 will prevent it from reaching the tensioning pressure plate 7 on the right side. Under the push of the elastic force of the right tensioning spring 701, the tensioning pressure plate 7 on the right side moves downward and uses the relative stagger between the wire hole 700 and the wire hole 503 to achieve compression of the binding wire.

[0057] Afterwards, when the fixed magnetic block 14 and the movable magnetic block 140 are blocked, the magnetic attraction between the two is cut off, and the driving gear row 9 is pushed outward by the elastic force of the bundling top spring 10. In this process, the driving gear row 9 and the driving gear 300 have one-way transmission, which forces the driving gear row 9 to drive the driving gear 300 to rotate. When the driving gear 300 drives the bundling gear 3 to rotate, the driven gear 501 meshing with the bundling gear 3 will drive the rope ring body 502 to rotate synchronously. The rotation of the rope ring body 502 will reel in the traction rope 600, so that the rope drum 6 releases the traction rope 600 and compresses the reset torsion spring 601. On the other hand, when the wire hole 503 rotates with the rope ring body 502, the rotation of the rope ring body 502 is used to realize the winding and tightening of the two ends of the binding wire. Furthermore, when the wire hole 503 rotates along with the rope ring body 502, the wire hole 503 and the wire feeding hole 100 are relatively staggered, thereby providing a shearing force to cut the binding wire.

[0058] As the bundling top spring 10 continuously pushes the driving gear row 9 to extend outward, the two ends of the binding wire are continuously wound and tightened. When the limit slider 11 approaches the magnetic isolation baffle 15, the right inclined surface of the limit slider 11 will push the magnetic isolation baffle 15 to move upward, but the magnetic isolation baffle 15 will still block the fixed magnetic block 14 and the movable magnetic block 140. As the tensioning top frame 4 moves upward to the tensioning pressure plate 7, the tensioning pressure plate 7 squeezes the tensioning spring 701, thereby increasing the connecting space between the wire hole 700 and the wire hole 503, and preventing the wire in the wire hole 503 from being over-clamped by the wire hole 700. Combined with the continuous rotation of the bundling swivel 5 at this time, the two tensioning pressure plates 7 will contact the top of the tensioning pressure plate 7 as they rotate, and the two ends of the binding wire are continuously wound and tightened. The binding wire in the wire hole 503 is finally entangled with each other and is continuously pulled out, and finally the binding wire is separated from the wire hole 503.

[0059] As the limiting slider 11 continues to move to the right, the limiting slot 110 will move to the bottom of the magnetic isolation baffle 15. As the magnetic isolation baffle 15 is pushed downward by the elastic force of the compression spring 16, it will be inserted into the limiting slot 110, thereby limiting the driving gear row 9 from further extending outward. At the same time, the side teeth of the driving gear row 9 are also completely separated from the driving gear 300. Afterwards, the rope drum 6 will be driven to rotate and the traction rope 600 will be reeled in under the elastic reset of the reset torsion spring 601. The traction rope 600 will cause the bundling swivel 5 to rotate in the opposite direction during the retraction process. Since the binding wire has been separated from the wire hole 503, when the bundling swivel 5 rotates in the opposite direction, the binding wire will not be opened.

[0060] Finally, when the rope drum 6 has finished winding up the traction rope 600, the operator pulls the telescopic push rod 2 to separate the outer protective cover 1 from the already tied steel bar node. Figure 2 As shown, as the telescopic push rod 2 is pulled downward, the tensioning push frame 8 is pushed upward by the elastic force of the lifting spring 800. At this time, under the elastic force of the bundling top spring 10, the driving gear row 9 always has a tendency to move outward, and the driving gear row 9 will push the limiting groove 110 to always be against the magnetic isolation baffle 15, thereby limiting the upward movement of the magnetic isolation baffle 15. As the lifting spring 800 pushes the tensioning push frame 8 upward and the slider on the tensioning push frame 8 pushes to the inner top of the tensioning top frame 4, the tensioning push frame 8 will push the tensioning top frame 4 to move upward, thereby increasing the strength of the upward movement of the tensioning top frame 4, and pulling the magnetic isolation baffle 15 out of the limiting groove 110. Finally, the two tensioning pressure plates 7 are pushed by the tensioning push frame 8 and the tensioning top frame 4 to connect the wire hole 700 and the wire hole 503. As the telescopic push rod 2 is continuously pulled out, the bundled steel bar nodes are separated again after passing through the bundling swivel 5.

[0061] At the same time, when the magnetic shielding baffle 15 passes over the limit groove 110 and the fixed magnetic block 14, the magnetic attraction of the fixed magnetic block 14 and the movable magnetic block 140 forces the driving gear row 9 to be retracted into the outer protective cover 1, and compresses the bundling top spring 10. When the driving gear row 9 is retracted, the one-way meshing transmission between the driving gear row 9 and the wire feeding gear 12 is used to force the magnetic shielding baffle 15 to drive the wire feeding pressure wheel 13 to rotate, and the wire feeding pressure wheel 13 is used to rotate to convey the clamped wire, so that the wire is conveyed to the wire hole 503 and then discharged from the other wire feeding hole 100. Since the two wire holes 700 are connected to the wire hole 503 at this time, the wire feeding pressure wheel 13 facilitates the conveyance of the wire to the wire hole 503. When the driving gear row 9 is fully retracted, the entire device returns to the normal position mentioned above. After that, the operator can once again use the telescopic push rod 2 to push the outer protective cover 1 to the steel bar node to achieve the bundling work again.

[0062] When the binding wire on the wire reel 101 is used up, the binding wire on other spare wire reels 101 can be inserted into the wire feeding hole 100 to realize the bundling work again.

Claims

1. A steel bar tying machine, characterized in that: include: An outer protective cover (1), a tension spring (102) is connected between the outer protective cover (1), and a binding swivel (5) is movably installed inside the outer protective cover (1), and the bottom of the outer protective cover (1) is fastened to the telescopic push rod (2); The bundling swivel (5) comprises: The mounting plate (500) is movably connected to the inner side of the outer protective cover (1); A driven gear (501) is located below the mounting plate (500), and a tying gear (3) meshing with the outer teeth of the driven gear (501) is movably mounted on the side of the outer protective cover (1), and the tying gear (3) is driven by the power mechanism to rotate; The rope winding ring body (502) is fastened below the driven gear (501), and a traction rope (600) is fixedly installed in the middle of the outer side of the rope winding ring body (502); a rope drum (6) is movably installed on the inner side of the outer protective cover (1), and the traction rope (600) is wound on the outer side of the rope drum (6); a reset torsion spring (601) is connected between the top of the rope drum (6) and the outer protective cover (1); a wire hole (503) is opened at the bottom of the rope winding ring body (502), and a wire passing hole (504) is opened in the middle.

2. The steel bar binding machine according to claim 1, characterized in that: A wire tensioning plate (7) is movably mounted at the bottom of the bundling swivel (5), a wire tensioning spring (701) is connected between the wire tensioning plate (7) and the bundling swivel (5), and a wire through hole (700) communicating with the wire hole (503) is formed on the wire tensioning plate (7); A tensioning top frame (4) is movably mounted on the inner bottom of the outer protective sleeve (1), and a tensioning top frame (4) is connected between the tensioning top frame (4) and the outer protective sleeve (1); A wire tightening push frame (8) is movably mounted on the side of the wire tightening top frame (4), and a lifting spring (800) is connected between the wire tightening push frame (8) and the outer protective cover (1).

3. The steel bar binding machine according to claim 2, characterized in that: A wire feeding hole (100) communicating with the wire hole (503) is provided on the side of the outer protective cover (1).

4. The steel bar binding machine according to claim 1 or 2, characterized in that: The first power mechanism consists of an electric motor.

5. The steel bar binding machine according to claim 1 or 2, characterized in that: The second power mechanism includes: A driving gear (300) is coaxially fastened to the tying gear (3); A driving gear row (9) is mounted on the bottom of the outer protective sleeve (1), and the driving gear row (9) and the driving gear (300) are in one-way meshing transmission; The bundling top spring (10) is arranged between the driving gear row (9) and the outer protective sleeve (1).

6. The steel bar binding machine according to claim 5, characterized in that: A fixed magnetic block (14) is fixedly mounted on the inner side of the outer protective cover (1), a movable magnetic block (140) that is magnetically attracted to the fixed magnetic block (14) is fixedly mounted on the driving gear row (9), and a magnetic isolation baffle (15) located between the fixed magnetic block (14) and the movable magnetic block (140) is fixedly mounted on the bottom of the tensioning top frame (4).

7. The steel bar binding machine according to claim 6, characterized in that: The top of the driving gear row (9) is tightly connected to a limit slider (11), and a limit groove (110) corresponding to the magnetic isolation baffle (15) is provided on the top of the limit slider (11), and a compression spring (16) is fixedly installed on the bottom of the inner side of the tensioning top frame (4).

8. The steel bar binding machine according to claim 7, characterized in that: The limiting sliding block (11) is in the shape of a right-angled trapezoid.

9. The steel bar binding machine according to claim 7, characterized in that: A wire drum (101) is movably mounted on the side of the outer protective sleeve (1), a binding wire is wound on the outer side of the wire drum (101), and wire feed pressure wheels (13) are symmetrically arranged on the inner side of the outer protective sleeve (1) on both sides of the wire feeding hole (100), and a wire feed gear (12) that is unidirectionally meshed with the driving gear row (9) is fixedly mounted on the rotating shaft of one of the wire feed pressure wheels (13).

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