Steel bar binding gun

Abstract

The utility model provides a steel bar binding gun which comprises a mounting frame, a first servo motor is mounted on the mounting frame, and a bearing mounting plate is further mounted on the mounting frame; the wire twisting mechanism is rotationally connected to the mounting frame and is in transmission connection with the first servo motor, and a fixed clamping jaw is fixedly connected to the wire twisting mechanism; the main shaft is connected to the first servo motor, the main shaft penetrates through the mounting frame and extends into the wire twisting mechanism, a convex block is arranged on the main shaft, a stop block is arranged on the wire twisting mechanism, and when the convex block abuts against the stop block, the main shaft drives the wire twisting mechanism to rotate; the movable clamping jaw is fixedly connected to the main shaft, the movable clamping jaw and the fixed clamping jaw jointly form a first clamping opening and a second clamping opening, and a shearing assembly is arranged on the first clamping opening; the locking assembly is installed between the wire twisting mechanism and the bearing installation plate and used for fixing the wire twisting mechanism and the bearing installation plate when the shearing assembly shears wires. The problem that in the prior art, manual bundling is adopted, and the forming efficiency is low is solved.

Description

Technical Field

[0001] This application belongs to the technical field of steel mesh production and processing equipment, and more specifically, it relates to a steel bar binding gun. Background Technology

[0002] Reinforcing mesh is a mesh sheet in which longitudinal and transverse reinforcing bars are arranged at certain intervals and at right angles to each other, and all intersections are welded or tied together.

[0003] When constructing large buildings, reinforced concrete structures are inevitably required. As the main framework of the building, reinforced concrete structures provide the primary support. Before forming the reinforced concrete structure, multiple steel bars need to be tied together on-site to form a steel mesh, or multiple steel bars need to be tied into mesh sheets in the factory before being transported to the site for splicing.

[0004] In existing technologies, manual binding is generally used, which is not only inefficient, but also increasingly labor-intensive as buildings become larger and the diameter of the steel bars and binding wires used to bind the bars increases, making it increasingly unable to meet the progress of engineering projects. Summary of the Invention

[0005] The purpose of this application is to provide a rebar tying gun to solve the problem mentioned in the background art that the prior art generally uses manual tying, which is not only inefficient, but also increasingly labor-intensive as buildings become larger and the diameter of the rebar and the wire used for tying the rebar increases, making it increasingly unable to meet the progress of the project.

[0006] To achieve the above objectives, the technical solution adopted in this application is: a rebar tying gun, comprising:

[0007] Mounting bracket, on which a first servo motor is mounted, and a bearing mounting plate is also mounted;

[0008] A wire-tightening mechanism is rotatably connected to the mounting frame and driven by the first servo motor. A fixed clamping jaw is fixedly connected to the wire-tightening mechanism.

[0009] A spindle is connected to the first servo motor, and the spindle passes through the mounting bracket and extends into the wire twisting mechanism. A protrusion is provided on the spindle, and a stop is provided on the wire twisting mechanism. When the protrusion abuts against the stop, the spindle drives the wire twisting mechanism to rotate.

[0010] The movable gripper is fixedly connected to the main shaft. The movable gripper and the fixed gripper together form a first clamping jaw and a second clamping jaw. The first clamping jaw is provided with a shearing component, which is used to shear the target steel wire after it passes through the cross-shaped target steel bar.

[0011] A locking assembly is installed between the wire twisting mechanism and the bearing mounting plate. The locking assembly is used to fix the wire twisting mechanism and the bearing mounting plate when the shearing assembly cuts the wire, so that the shearing assembly can quickly cut the target steel wire.

[0012] Preferably, the locking component includes:

[0013] An arc-shaped rack structure is fixedly connected to the bearing mounting plate;

[0014] The positioning plate is provided in two parts, and the two positioning plates are symmetrically and fixedly connected to the screwing mechanism.

[0015] A movable toothed structure is installed between the two positioning plates and is slidably connected to the two positioning plates. The movable toothed structure is adapted to the arc-shaped rack structure.

[0016] An eccentric wheel is fixedly sleeved on the main shaft;

[0017] A spring is installed between the positioning plate and the movable toothed structure to ensure that the movable toothed structure abuts against the eccentric wheel.

[0018] Preferably, the wire twisting mechanism includes:

[0019] A turntable is rotatably connected to the mounting bracket. A stop block is protruding from the inner side of the turntable. The main shaft passes through the turntable and is rotatably connected to the turntable.

[0020] The upright plate consists of two pieces, which are symmetrically and fixedly connected to the turntable.

[0021] A horizontal plate is fixedly connected to the two vertical plates, and the fixing claws are fixedly connected to the horizontal plate.

[0022] Preferably, the system also includes a reinforcing plate, which is fixedly connected between the two upright plates. A bushing is fixedly connected to the reinforcing plate, and the main shaft passes through the bushing, and the main shaft is rotatably connected to the bushing.

[0023] Preferably, the shearing component includes:

[0024] The first blade is fixedly connected to the fixed gripper;

[0025] The movable gripper has a first clamping part and a second clamping part. A second blade is fixedly connected to the first clamping part, and the second blade is adapted to the first blade.

[0026] Preferably, a guide plate is installed on the second clamping part, and the guide plate is provided with a guide section, which is used for the guide plate to quickly engage with the fixed jaw.

[0027] Preferably, the device also includes a wire feeding mechanism mounted on the mounting frame, the wire feeding mechanism being used to transmit the target steel wire.

[0028] Preferably, the wire feeding mechanism includes:

[0029] A guide wire mounting plate is fixedly connected to the mounting bracket;

[0030] The second servo motor is mounted on the guide wire mounting plate;

[0031] A transmission gear is connected to the output shaft of the second servo motor;

[0032] Two wire feeding gears are provided. The two wire feeding gears are rotatably connected to the wire guide mounting plate and are located on both sides of the transmission gear. Both wire feeding gears are meshed with the transmission gear and both wire feeding gears are provided with a clamping part.

[0033] A clamping assembly is disposed on the wire guide mounting plate. The clamping assembly is provided with a clamping wheel. The clamping assembly is used to press the target steel wire tightly onto the clamping part, so that the target steel wire can be conveyed to the next process under the drive of the transmission gear.

[0034] Preferably, a wire guide is provided between the wire feeding mechanism and the shearing assembly. The wire guide is used to feed the target wire above the shearing assembly, and the wire guide is also used to form the target wire into an arc shape so as to bypass the cross-shaped target reinforcing bars.

[0035] Preferably, a hanging plate is fixedly connected to the mounting bracket.

[0036] The beneficial effects of the rebar tying gun provided in this application are as follows:

[0037] 1. This utility model, by starting the first servo motor, drives the movable gripper to rotate, thereby causing the first clamping part and the second clamping part to move closer to the fixed gripper and clamp the target steel wire. At this time, due to the action of the locking component, the turntable and the mounting frame are relatively fixed. The shearing components on the first clamping part and the fixed gripper can cut the target steel wire. Then the main shaft continues to rotate. Due to the action of the eccentric wheel on the main shaft, the movable tooth structure and the arc-shaped rack structure separate. The protrusion on the main shaft abuts against the stop on the turntable. The turntable rotates with the main shaft and twists the target steel wire. After the twisting is completed, the first servo motor reverses to reset the movable gripper. This utility model replaces the manual binding of steel mesh in the prior art, so as to improve work efficiency and reduce the workload of workers. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A three-dimensional structural schematic diagram of the rebar tying gun provided in the embodiments of this application;

[0040] Figure 2 A three-dimensional structural diagram of the rebar tying gun provided in this embodiment of the application after adding a wire feeding mechanism;

[0041] Figure 3 A three-dimensional structural schematic diagram of the wire feeding mechanism provided in the embodiments of this application;

[0042] Figure 4 A three-dimensional structural diagram illustrating the positional relationship between the movable gripper and the fixed gripper provided in an embodiment of this application;

[0043] Figure 5 This is a schematic diagram of the locking component provided in an embodiment of this application;

[0044] Figure 6 This is a schematic diagram of the structure of the protrusion and stop provided in the embodiments of this application;

[0045] Figure 7 A schematic diagram of the movable tooth structure in the locking assembly provided in this application embodiment;

[0046] Figure 8 This is a schematic diagram of the eccentric wheel provided in an embodiment of this application;

[0047] Figure 9This is a schematic diagram of the wire guide principle provided in the embodiments of this application.

[0048] Among them, the reference numerals in the figures are:

[0049] 1. Mounting bracket; 101. Bearing mounting plate; 102. Hanging plate;

[0050] 2. Locking assembly; 201. Arc-shaped rack and pinion structure; 202. Positioning plate; 203. Movable toothed structure; 204. Abutment part; 205. Eccentric wheel;

[0051] 3. Wire feeding mechanism; 301. Wire guide mounting plate; 302. Transmission gear; 303. Wire feeding gear; 304. Pressing part; 305. Pressing wheel; 306. Pressing wheel frame; 307. Adjusting rod; 308. Adjusting screw sleeve;

[0052] 4. Tightening mechanism; 401. Turntable; 402. Vertical plate; 403. Horizontal plate; 404. Stop block; 405. Reinforcing plate; 406. Bushing;

[0053] 5. Movable gripper; 501. First clamping part; 502. Second clamping part; 503. Guide plate; 504. Guide section;

[0054] 6. Fixed gripper; 7. Wire guide; 8. Guide groove; 9. Target steel wire; 10. First reducer; 11. Target steel bar; 12. First servo motor; 13. Spindle; 14. Protrusion. Detailed Implementation

[0055] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0056] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0057] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0059] Please refer to the following: Figures 1 to 9 The present application will now describe a rebar tying gun provided in the embodiments of this application.

[0060] The rebar tying gun includes: a mounting frame 1, a wire twisting mechanism 4, a main shaft 13, a first servo motor 12, a movable gripper 5, a fixed gripper 6, a shearing assembly, and a locking assembly 2.

[0061] Specifically, a first servo motor 12 is mounted on the mounting frame 1, and a bearing mounting plate 101 is also mounted on the mounting frame 1. A main shaft 13 is connected to the output shaft of the first servo motor 12, and the main shaft 13 passes through the mounting frame 1 and extends into the wire-tightening mechanism 4. The main shaft 13 is rotatably connected to the mounting frame 1. A protrusion 14 is provided on the main shaft 13, and a stop block 404 is provided on the wire-tightening mechanism 4. When the protrusion 14 abuts against the stop block 404, the main shaft 13 drives the wire-tightening mechanism 4 to rotate. To improve system performance, meet specific application requirements, and optimize cost-effectiveness, a first reducer 10 is installed between the first servo motor 12 and the main shaft 13. A hanging plate 102 is fixedly connected to the mounting frame 1 for the installation of the rebar tying gun.

[0062] The wire twisting mechanism 4 is rotatably connected to the mounting frame 1 and is driven by the first servo motor 12. Specifically, the wire twisting mechanism 4 includes: a turntable 401, rotatably connected to the mounting frame 1, with a stop block 404 protruding from the inner side of the turntable 401, and the main shaft 13 passing through the turntable 401 and rotatably connected to the turntable 401; two vertical plates 402, which are symmetrically fixedly connected to the turntable 401; and a horizontal plate 403, which is fixedly connected to the two vertical plates 402, with the fixing claw 6 fixedly connected to the horizontal plate 403. There can be two horizontal plates 403, which fix the fixing claw 6 vertically to further improve the stability of the fixing claw 6.

[0063] To further improve the stability of the main shaft 13 transmission, a reinforcing plate 405 is fixedly connected between the two vertical plates 402. The main shaft 13 passes through the reinforcing plate 405 and is rotatably connected to the reinforcing plate 405. Specifically, a bushing 406 is fixedly connected to the reinforcing plate 405. The main shaft 13 passes through the bushing 406 and is rotatably connected to the bushing 406.

[0064] The movable gripper 5 is fixedly connected to the main shaft 13. The movable gripper 5 has a first clamping part 501 and a second clamping part 502. The first clamping part 501 and the fixed gripper 6 together form a first clamping jaw, and the second clamping part 502 and the fixed gripper 6 together form a second clamping jaw. The first clamping jaw is provided with a shearing component, specifically the shearing component includes: a first blade, fixedly connected to the fixed gripper 6; a second blade is fixedly connected to the first clamping part 501, and the second blade is adapted to the first blade; the shearing component is used to cut the target steel wire 9 after it passes through the cross-shaped target rebar 11; in order to more accurately align the first clamping and second clamping parts 502 of the movable gripper 5 with the corresponding parts of the fixed gripper 6, a guide plate 503 is installed on the second clamping part 502. The guide plate 503 is provided with a guide section 504, and the guide section 504 is used for the guide plate 503 to quickly engage with the fixed gripper 6.

[0065] A locking assembly 2 is installed between the wire-twisting mechanism 4 and the bearing mounting plate 101. The locking assembly 2 is used to fix the wire-twisting mechanism 4 and the bearing mounting plate 101 when the shearing assembly cuts the wire, so that the shearing assembly can quickly cut the target steel wire 9. Specifically, the locking assembly 2 includes: an arc-shaped rack structure 201, fixedly connected to the bearing mounting plate 101 (in this paper, the arc-shaped rack structure 201 is a rack disc); two positioning plates 202, symmetrically fixedly connected to the turntable 401 and close to the stop block 404; and a movable toothed structure 203, installed between the two positioning plates 202 and slidably connected to them. The 03 is adapted to the arc-shaped rack structure 201, and the movable gear structure 203 has an abutment portion 204; the eccentric wheel 205 is fixedly sleeved on the main shaft 13, and the eccentric wheel 205 has an unlocking position; a spring is installed between the positioning plate 202 and the movable gear structure 203 to ensure that the abutment portion 204 of the movable gear structure 203 always abuts against the eccentric wheel 205, and the abutment portion 204 slides against the eccentric wheel 205. It should be noted that, in order to facilitate the installation of the eccentric wheel 205, the main shaft 13 in this embodiment is composed of multiple segments connected by keys.

[0066] When the abutment part 204 slides to the unlocked position of the eccentric wheel 205, the protrusion 14 on the main shaft 13 contacts the stop block 404 on the turntable 401. At this time, the wire-twisting mechanism 4 rotates with the main shaft 13 under the drive of the main shaft 13 and twists the target wire 9. When the movable tooth structure 203 meshes with the arc-shaped rack structure 201, the turntable 401 is fixed relative to the mounting bracket 1 and locked. The movable gripper 5 rotates with the main shaft 13 and clamps the target wire 9 while the shearing component cuts the target wire 9. Then, as the main shaft 13 continues to rotate with the eccentric wheel 205, the eccentric wheel 205 disengages the movable tooth structure 203 from the arc-shaped rack structure 201 to achieve the unlocking purpose.

[0067] As a further preferred embodiment, the mounting frame 1 is also equipped with a wire feeding mechanism 3, which is used to transmit the target steel wire 9. Specifically, the wire feeding mechanism 3 includes: a wire guide mounting plate 301, which is fixedly connected to the mounting frame 1; a second servo motor, which is mounted on the wire guide mounting plate 301, and the output shaft of the second servo motor passes through the wire guide mounting plate 301, thereby rotatably connecting the wire guide mounting plate 301; a transmission gear 302, which is fixedly connected to the output shaft of the second servo motor. As one embodiment, in order to improve system performance, meet specific application requirements, and optimize cost-effectiveness, a reducer is installed between the second servo motor and the transmission gear 302; and wire feeding gears 303, preferably two of which are rotatably connected to the wire guide mounting plate 301, and located on both sides of the transmission gear 302. Both wire feeding gears 303 are meshed with the transmission gear 302. A clamping part 304 is provided; a clamping assembly is installed on the wire guide mounting plate 301, the clamping assembly is equipped with a clamping wheel 305, and the clamping wheel 305 is adapted to two wire feeding gears 303. The clamping wheel 305 is installed on a clamping wheel frame 306, and the clamping wheel frames 306 are rotatably connected to the wire guide mounting plate 301. An adjusting pressure wheel handle is rotatably connected to one of the clamping wheel frames 306. The adjusting pressure wheel handle includes an adjusting rod 307 and an adjusting screw sleeve 308. The adjusting screw sleeve 308 is threadedly connected to the adjusting rod 307. One end of the adjusting rod 307 is rotatably connected to one of the clamping wheel frames 306. When the clamping assembly is to be locked, the adjusting rod 307 is rotated to the limiting groove of the other clamping wheel frame 306, and then the adjusting screw sleeve 308 is tightened to abut against the limiting groove on the clamping wheel frame 306, so that the two clamping wheel frames 306 are finally locked in the clamping position. It should be noted that both clamping wheel frames 306 are rotatably connected to the guide wire mounting plate 301. The clamping assembly is used to press the target steel wire 9 tightly onto the clamping part 304 after the clamping part 304 is passed through. At this time, the clamping assembly is in the clamping position, so that the target steel wire 9 can be transported to the next process under the drive of the transmission gear 302. When the target steel wire 9 is to be installed on the wire feeding mechanism 3, the clamping assembly is in the unlocked position, and the clamping wheel 305 is disengaged from the clamping part 304 so that the target steel wire 9 can pass through.In a preferred embodiment, a wire guide 7 is provided between the wire feeding mechanism 3 and the shearing assembly. The wire guide 7 is used to feed the target wire 9 to the top of the shearing assembly, and the wire guide 7 is also used to form the target wire 9 into an arc shape so as to bypass the cross-shaped target reinforcing bars 11. The wire guide 7 is fixedly connected to the wire guide mounting plate 301. The wire guide 7 is provided with a wire guide hole, which is located on the wire feeding path of the wire feeding mechanism 3, and the end of the guide groove 8 away from the wire guide mounting plate 301 is located directly above the shearing assembly. The wire guide 7, after forming the target wire 9 into an arc shape and bypassing the cross-shaped target reinforcing bars 11 under the action of the wire feeding mechanism 3, feeds the free end of the target wire 9 to the clamping jaw away from the shearing assembly and finally forms a semi-circular arc shape. Then, the movable clamping jaw 5, the fixed clamping jaw 6, and the shearing assembly clamp and cut the target wire 9.

[0068] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A rebar tying gun, characterized in that, include: Mounting bracket, on which a first servo motor is mounted, and a bearing mounting plate is also mounted; A wire-tightening mechanism is rotatably connected to the mounting frame and driven by the first servo motor. A fixed clamping jaw is fixedly connected to the wire-tightening mechanism. A spindle is connected to the first servo motor, and the spindle passes through the mounting bracket and extends into the wire twisting mechanism. A protrusion is provided on the spindle, and a stop is provided on the wire twisting mechanism. When the protrusion abuts against the stop, the spindle drives the wire twisting mechanism to rotate. The movable gripper is fixedly connected to the main shaft. The movable gripper and the fixed gripper together form a first clamping jaw and a second clamping jaw. The first clamping jaw is provided with a shearing component, which is used to shear the target steel wire after it passes through the cross-shaped target steel bar. A locking assembly is installed between the wire twisting mechanism and the bearing mounting plate. The locking assembly is used to fix the wire twisting mechanism and the bearing mounting plate when the shearing assembly cuts the wire, so that the shearing assembly can quickly cut the target steel wire.

2. The rebar tying gun as described in claim 1, characterized in that: The locking component includes: An arc-shaped rack structure is fixedly connected to the bearing mounting plate; The positioning plate is provided in two parts, and the two positioning plates are symmetrically and fixedly connected to the screwing mechanism. A movable toothed structure is installed between the two positioning plates and is slidably connected to the two positioning plates. The movable toothed structure is adapted to the arc-shaped rack structure. An eccentric wheel is fixedly sleeved on the main shaft; A spring is installed between the positioning plate and the movable toothed structure to ensure that the movable toothed structure abuts against the eccentric wheel.

3. The rebar tying gun as described in claim 2, characterized in that: The wire twisting mechanism includes: A turntable is rotatably connected to the mounting bracket. A stop block is protruding from the inner side of the turntable. The main shaft passes through the turntable and is rotatably connected to the turntable. The upright plate consists of two pieces, which are symmetrically and fixedly connected to the turntable. A horizontal plate is fixedly connected to the two vertical plates, and the fixing claws are fixedly connected to the horizontal plate.

4. A rebar tying gun as described in claim 3, characterized in that, It also includes a reinforcing plate, which is fixedly connected between the two upright plates. A bushing is fixedly connected to the reinforcing plate, and the main shaft passes through the bushing, and the main shaft is rotatably connected to the bushing.

5. A rebar tying gun as described in claim 4, characterized in that, The shearing component includes: The first blade is fixedly connected to the fixed gripper; The movable gripper has a first clamping part and a second clamping part. A second blade is fixedly connected to the first clamping part, and the second blade is adapted to the first blade.

6. A rebar tying gun as described in claim 5, characterized in that: A guide plate is installed on the second clamping part, and a guide section is provided on the guide plate. The guide section is used for the guide plate to quickly engage with the fixed jaw.

7. A rebar tying gun as described in any one of claims 1 to 6, characterized in that: It also includes a wire feeding mechanism, which is mounted on the mounting frame and is used to transmit the target steel wire.

8. A rebar tying gun as described in claim 7, characterized in that: The wire feeding mechanism includes: A guide wire mounting plate is fixedly connected to the mounting bracket; The second servo motor is mounted on the guide wire mounting plate; A transmission gear is connected to the output shaft of the second servo motor; Two wire feeding gears are provided. The two wire feeding gears are rotatably connected to the wire guide mounting plate and are located on both sides of the transmission gear. Both wire feeding gears are meshed with the transmission gear and both wire feeding gears are provided with a clamping part. A clamping assembly is disposed on the wire guide mounting plate. The clamping assembly is provided with a clamping wheel. The clamping assembly is used to press the target steel wire tightly onto the clamping part, so that the target steel wire can be conveyed to the next process under the drive of the transmission gear.

9. A rebar tying gun as described in claim 8, characterized in that: A wire guide is provided between the wire feeding mechanism and the shearing assembly. The wire guide is used to feed the target steel wire above the shearing assembly, and the wire guide is also used to form the target steel wire into an arc shape so as to bypass the cross-shaped target reinforcing bars.

10. A rebar tying gun as described in claim 9, characterized in that: A hanging plate is fixedly connected to the mounting bracket.

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