CN113235938B

CN113235938B - Reinforcing bar strapper for building site

Info

Publication number: CN113235938B
Application number: CN202110471886.8A
Authority: CN
Inventors: 张丙岩
Original assignee: China Construction Third Engineering Bureau Science and Innovation Industry Development Co Ltd
Current assignee: China Construction Third Engineering Bureau Science and Innovation Industry Development Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-12-09
Anticipated expiration: 2041-04-29
Also published as: CN113235938A

Abstract

The invention relates to the technical field of building construction, and discloses a steel bar binding machine for a building site, wherein a wire winding reel is movably mounted at one end inside a casing, a wire guide wheel is fixedly mounted at the top position between a conveying motor and a torsion motor inside the casing, a transmission device is fixedly mounted at the bottom position between the conveying motor and the torsion motor inside the casing, a hydraulic hole is formed inside the transmission device, a pressure rod is movably sleeved at the top of the hydraulic hole, a clamping strip is movably sleeved at the bottom end of the hydraulic hole, an external gear is fixedly sleeved on the outer ring of the wire winding reel, a transmission sleeve is movably mounted inside a mounting groove, a limiting shaft is movably mounted in the middle of the mounting groove, a tooth key meshed with the external gear is uniformly and fixedly mounted on the outer ring of the transmission sleeve, a coil spring is movably connected between the transmission sleeve and the limiting shaft, the binding quality is improved and the iron wire cost is saved by arranging the transmission sleeve, the transmission gear, the pressure rod and other structures are matched.

Description

Reinforcing bar strapper for building site

Technical Field

The invention relates to the technical field of building construction, in particular to a steel bar binding machine for a building site.

Background

In the construction industry, reinforcing steel bars are the same essential material, which is mainly used for concrete pouring, so that the strength of the reinforcing steel bars is increased, the cross-stacked reinforcing steel bars need to be bundled to prevent the spreading, the most conventional mode is to bundle the iron wires manually, but the method is too slow for large engineering or large-area construction, so that the iron wires need to be quickly bundled by using a machine, and then a reinforcing steel bar bundling machine is appeared, which uses an internal motor to drive the iron wires, and can bend the iron wires and cut off and finally twist the led-out iron wires by the structural design, but the reinforcing steel bar bundling machine has some problems:

when the reinforcing steel bars are bundled, the wires are discharged from the winding drum and are pushed out through the conveying effect of the motor, and when the wires are bent forwards along the wire guide holes and wound in an annular shape, a large ring is formed compared with the reinforcing steel bars, so that a large number of wires are used for winding, the wires are not actually and completely acted on the reinforcing steel bars 18, when a torsion motor rotates later, only the redundant wires are twisted off, and the wires are not fully bundled actually; meanwhile, 2-3 circles are generally most suitable when winding is carried out, but because the shape and the position of the reinforcing steel bar and the error of the binding machine, the rings wound out are not all the same, so that the iron wire cannot be twisted more normally when the iron wire is twisted, and the utilization rate of the iron wire is ensured.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the steel bar binding machine for the construction site, which has the advantages of good binding effect and material saving and solves the problems of the background technology.

The invention provides the following technical scheme: the utility model provides a reinforcing bar strapper for building site, includes the casing, the bottom fixed mounting of casing has the handle, and the positive movable mounting of handle has the switch, the inside one end movable mounting of casing has the wire winding reel, the inside middle part fixed mounting of casing has conveyor motor, the inside fixed mounting that the casing is close to the outer end has the torsion motor, the inside top position fixed mounting that is located conveyor motor and twists reverse between the motor of casing has the godet roller, the inside bottom position fixed mounting that is located conveyor motor and twists reverse between the motor of casing has transmission, hydraulic pressure hole has been seted up to transmission's inside, the top activity in hydraulic pressure hole cup joints pressure pole, the top movable mounting of pressure pole has the guide pulley, the card strip has been cup jointed in the bottom activity in hydraulic pressure hole, the fixed cup joints in the outer lane of wire winding reel, the middle part winding of wire winding reel has the iron wire, the front end top of casing has seted up the wire hole, the mounting groove has been seted up to the inside movable mounting of casing, the inside movable mounting of mounting groove has the transmission cover, the middle part movable mounting of mounting groove has spacing axle, the outer lane of transmission cover evenly fixed mounting have the tooth key with the external gear meshing, ratchet wheel, ratchet fixed mounting has the ratchet wheel outside with the ratchet wheel ratchet between the ratchet wheel and ratchet fixed mounting.

Preferably, a transmission rod is movably mounted between the pressure rod and the torsion motor inside the casing, a filament cutting head is movably connected to one end, located at the top of the torsion motor, of the transmission rod, a filament cutting groove is formed in the top, located at the top of the filament cutting head, inside the filament guiding hole, of the filament cutting head, and a drawn wire is fixedly connected to the bottom of the filament cutting head and the top of the torsion motor.

Preferably, the pressure rod is in a cross shape, a return spring is movably sleeved on the outer ring of the bottom of the baffle of the pressure rod, the height of the guide wheel in normal working is higher than that of the godet wheel, the transmission rod is in a Z-shaped shape, one lower end of the transmission rod is located below the baffle of the pressure rod, and the top surface of the pressure rod is just tensioned by an iron wire when being flattened to the maximum position.

Preferably, the pulling force when the coil spring contracts to the maximum position is equal to the sum of the frictional resistance of the limiting shaft, and the extending end of the clamping strip just corresponds to the outer ring of the first ratchet wheel.

Preferably, the magnitude of the elastic force of the coil spring is larger than the sum of the frictional resistance of the iron wire, and the tightening distance of the coil spring is larger than the number of turns required for tightening the iron wire.

The invention has the following beneficial effects:

through set up the external gear at wire winding reel outer lane, and the cooperation has the transmission cover, transmission, structure combined action such as pressure pole, compare in prior art, utilize the transmission cover can realize the effect of energy storage and release energy with inside wind spring and spacing axle combined action, thereby utilize the elasticity of wind spring release to realize the taut effect to the iron wire, the iron wire of having guaranteed the winding on the reinforcing bar can not be too much, a large amount of iron wires have been practiced thrift, still realize cutting and the tight iron wire of turning round of certain dynamics through the filament cutter head when utilizing the wind spring to realize taut iron wire simultaneously, and still through set up limit structure such as card strip in transmission inside, it all is in taut state to have guaranteed that each circle of iron wire of winding on the reinforcing bar, more do benefit to the effect that realizes the fastening, the stable security of reinforcing bar frame has been guaranteed.

Drawings

FIG. 1 is a structural overall view of the present invention;

FIG. 2 is a sectional view of the driving sleeve assembly of the present invention;

FIG. 3 is a schematic view of the structure of the driving sleeve of the present invention;

FIG. 4 is a rear view of the drive sleeve construction of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 1;

FIG. 6 is a flow chart of the present invention architecture.

In the figure: 1. a housing; 101. a wire guide hole; 1011. a filament cutting groove; 102. mounting grooves; 103. a pawl; 2. a grip; 3. a switch; 4. winding the wire into a reel; 401. an outer gear; 402. iron wires; 5. a conveying motor; 6. a godet wheel; 7. a torsion motor; 8. a transmission device; 801. a hydraulic bore; 9. a pressure rod; 901. a guide wheel; 10. clamping the strip; 11. a driving sleeve; 1101. a toothed key; 1102. a first ratchet wheel; 12. a limiting shaft; 1201. a second ratchet wheel; 13. a coil spring; 14. a transmission rod; 15. cutting a filament head; 16. a return spring; 17. drawing wires; 18. and (5) reinforcing steel bars.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a reinforcing steel bar binding machine for a building site includes a casing 1, a handle 2 is fixedly installed at the bottom of the casing 1, a switch 3 is movably installed on the front surface of the handle 2, a wire winding drum 4 is movably installed at one end inside the casing 1, a conveying motor 5 is fixedly installed in the middle inside the casing 1, a torsion motor 7 is fixedly installed inside the casing 1 near the outer end, a wire guide wheel 6 is fixedly installed at the top position between the conveying motor 5 and the torsion motor 7 inside the casing 1, a transmission device 8 is fixedly installed at the bottom position between the conveying motor 5 and the torsion motor 7 inside the casing 1, a hydraulic hole 801 is formed inside the transmission device 8, a pressure rod 9 is movably sleeved at the top of the hydraulic hole 801, a guide wheel 901 is movably installed at the top of the pressure rod 9, a clamping strip 10 is movably sleeved at the bottom end of the hydraulic hole 801, an outer ring of the wire winding drum 4 is fixedly sleeved with an outer gear 401, an iron wire 1101 is formed in the middle of the wire winding drum 4, a front end top of the casing 1 is provided with a wire guide hole 101, a ratchet wheel 102 is movably installed on the side wall inside the casing 1, a ratchet wheel mounting groove 11, a ratchet wheel shaft 11 is movably installed movably mounted with a ratchet sleeve 12, a ratchet wheel key 12, and a ratchet wheel key 11 is movably mounted on the outer ring fixedly installed on the outer side of the ratchet shaft, and a ratchet wheel shaft 1102, and a ratchet wheel 12 fixed with a ratchet wheel 12, and a ratchet wheel 12, the ratchet wheel shaft 11, the ratchet wheel key 11, the ratchet wheel shaft 11, the ratchet shaft 11 is uniformly engaged with a ratchet shaft 11.

Wherein, the inside pressure pole 9 that is located of casing 1 and torsion motor 7 movable mounting have a transfer line 14, the one end swing joint that transfer line 14 is located torsion motor 7 top has a wire cutting head 15, wire guide hole 101 is inside to be located the top position of wire cutting head 15 and has seted up wire cutting groove 1011, wire cutting head 15's bottom and torsion motor 7's top fixedly connected with wire drawing 17, wire cutting head 15 that drives the other end through transfer line 14 can cut off the processing to iron wire 402, simultaneously can carry out convenient semicircle that cuts in wire cutting groove 1011 utilizing, the probability of cutting off iron wire 402 is improved through the protruding cooperation work of a jack-up arch.

The pressure rod 9 is in a cross shape, the outer ring of the bottom of the baffle is movably sleeved with the reset spring 16, the height of the guide wheel 901 in normal operation is higher than that of the godet wheel 6, the transmission rod 14 is in a Z shape, the lower end of the transmission rod 14 is located below the baffle part of the pressure rod 9, when the top surface of the pressure rod 9 is flattened to the maximum position, the iron wire 402 is tensioned, the pressure rod 9 is pressed down when the iron wire 402 is contracted and straightened inwards under the action of the coil spring 13, the pressure rod 9 triggers the tensioning force of the iron wire 402 when being pressed down to a certain position, and at the moment, the baffle part of the pressure rod 9 drives the transmission rod 14 to rotate, so that the iron wire is cut off 402 to facilitate torsion of the iron wire.

The pulling force when the coil spring 13 contracts to the maximum position is equal to the sum of the frictional resistance of the limiting shaft 12, the extending end of the clamping strip 10 corresponds to the outer ring of the first ratchet wheel 1102, the limiting shaft 12 inside the coil spring 13 is driven to rotate after being driven to the maximum pulling force position by the wire winding drum 4, then the one-way rotation of the limiting shaft 12 is realized through the ratchet wheel and pawl structure, meanwhile, the clamping strip 10 is driven to extend and be clamped to the outer ring position of the first ratchet wheel 1102 through the hydraulic transmission inside the transmission device 8 after the iron wire 402 is straightened, the effect of straightening the iron wire 402 under the effect of the coil spring 13 is ensured, and the pulling force for rotating and contracting the iron wire 402 does not need to be provided any more at this moment.

The elastic force of the coil spring 13 is greater than the sum of the frictional resistance of the iron wire 402, the distance of the coil spring 13 is greater than the number of turns required for tensioning the iron wire 402, so that the iron wire 402 can be pulled back under the action of the coil spring 13, the part of the iron wire 402 wound on the steel bar 18 is tensioned, and meanwhile, the path of the number of turns after the coil spring 13 is tensioned is required to be long enough to ensure that the iron wire 402 can be tensioned sufficiently subsequently.

The working principle is that the wire winding drum 4 is firstly installed inside the machine shell 1, one end of an iron wire 402 is ensured to pass through the wire guiding wheel 6 and the guide wheel 901 to the wire guiding hole 101, then the front end of the machine shell 1 is clamped outside a steel bar 18 needing to be bundled with the iron wire 402, then the switch 3 is pressed to start the conveying motor 5 to drive the iron wire 402 to be wound to the outer ring of the steel bar 18 along the wire guiding hole 101, the conveying is stopped after the iron wire is wound for 2-3 circles, the wire winding drum 4 drives the external gear 401 to rotate in the conveying process to drive the transmission sleeve 11 to rotate, and the transmission sleeve 11 drives the coil spring 13 to tighten and rotate until the limiting shaft 12 is driven to rotate together; after the iron wire 402 is conveyed, the transmission sleeve 11 and the outer gear 401 are driven to rotate step by step under the action of the coil spring 13, so that the iron wire 402 wound on the outer ring of the steel bar 18 is tensioned, when the tensioned iron wire 402 is pressed down on the pressure rod 9 and is increased to a limited value, the return spring 16 is pressed down and extrudes hydraulic oil, the pressure rod 9 is pressed down and simultaneously abuts against the transmission rod 14, the wire cutting head 15 is driven to jack up and cut off the iron wire 402 through transmission, meanwhile, the hydraulic oil is extruded again to eject the clamping strip 10 and clamp the clamping strip onto the first ratchet wheel 1102, so that the coil spring 13 is limited to continuously drive the transmission sleeve 11 to rotate, and then the iron wire 402 is twisted under the action of the torsion motor 7.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rebar tying machine for building site, includes casing (1), and the bottom fixed mounting of casing (1) has handle (2), and the positive movable mounting of handle (2) has switch (3), its characterized in that: the wire winding device is characterized in that a wire winding drum (4) is movably arranged at one end inside the casing (1), a conveying motor (5) is fixedly arranged in the middle inside the casing (1), a torsion motor (7) is fixedly arranged inside the casing (1) close to the outer end, a wire guide wheel (6) is fixedly arranged at the top between the conveying motor (5) and the torsion motor (7) inside the casing (1), a transmission device (8) is fixedly arranged at the bottom between the conveying motor (5) and the torsion motor (7) inside the casing (1), a hydraulic hole (801) is formed in the transmission device (8), a pressure rod (9) is movably sleeved at the top of the hydraulic hole (801), a guide wheel (901) is movably arranged at the top of the pressure rod (9), a clamping strip (10) is movably sleeved at the bottom of the hydraulic hole (801), an external gear (401) is fixedly sleeved at the outer ring of the wire winding drum (4), an iron wire (402) is wound in the middle of the wire winding drum (4), an iron wire (101) is formed at the top of the front end of the casing (1), a side wall (102) inside the casing (1) is provided with a movable wire guide hole, and a mounting groove (11) is formed in the middle of the mounting groove (102), a limiting shaft (11) is arranged in the movable mounting groove (11), the wire guiding device is characterized in that a toothed key (1101) meshed with an external gear (401) is uniformly and fixedly mounted on the outer ring of the transmission sleeve (11), a first ratchet wheel (1102) is fixedly mounted on the outer ring of one end of the transmission sleeve (11), a coil spring (13) is movably connected between the transmission sleeve (11) and a limiting shaft (12), a second ratchet wheel (1201) is fixedly mounted on the outer side of one end, close to the first ratchet wheel (1102), of the limiting shaft (12), a pawl (103) matched with the first ratchet wheel (1102) is movably mounted inside the casing (1), a transmission rod (14) is movably mounted inside the casing (1) and between a pressure rod (9) and a torsion motor (7), a wire cutting head (15) is movably mounted at one end, located at the top of the torsion motor (7), a wire cutting groove (1011) is formed in the position, located at the top of the wire cutting head (15), inside the wire guiding hole (101), a wire cutting groove (1011) is formed in the position, the bottom of the wire cutting head (15) and the top of the torsion motor (7) are fixedly connected with a wire drawing wire (17), a guide wheel (9) is in a sleeved manner, a movable position at the bottom of the cross-shaped guide wheel (16), a guide wheel is located at the bottom of the pressure rod (9), and a position, when the guide wheel (6), the guide wheel is located below the pressure rod (14), and the guide wheel is located at the position, the pressure rod (6), and the pressure rod is higher than the pressure rod (14), and the pressure rod (6) is higher than the pressure rod (6), when the top surface of the pressure rod (9) is flattened to the maximum position and is just tensioned by the iron wire (402), the tension force when the coil spring (13) contracts to the maximum position is equal to the sum of the friction resistance of the limiting shaft (12), the extending end of the clamping strip (10) is just corresponding to the outer ring of the first ratchet wheel (1102), the elastic force of the coil spring (13) is greater than the sum of the friction resistance of the iron wire (402), and the tensioning distance of the coil spring (13) is greater than the number of turns required for tensioning the iron wire (402).