Reinforcing bar tying mechanism

Abstract

The application provides a reinforcing steel bar bundling mechanism, aiming at solving the problem of the existing reinforcing steel bar bundling adopting "single loop winding + manual tightening". The bundling mechanism comprises a winding assembly, a first wire guide assembly and a bundling assembly. The winding assembly is provided with N wire guide channels. The first wire guide assembly comprises N-1 first wire guide channels and one second wire guide channel. One first wire guide channel is connected to two adjacent wire guide channels. The second wire guide channel is connected to the last wire guide channel. The bundling assembly comprises a rotatable winding member. The winding member is provided with a first channel and a second channel. The second channel comprises a wire clamping hole. When the metal wire is guided into the first wire guide channel, the wire is guided to two adjacent wire guide channels under the guidance of the first wire guide channel, and then the wire is guided to the last wire guide channel. When the last wire guide channel is completed, the wire is guided into the second channel through the second wire guide channel, and the wire head is locked by the wire clamping hole. The winding member is rotated to complete the wire twisting and cutting.

Description

Technical Field

[0001] This application relates to the field of rebar bundling technology, and in particular to a rebar bundling mechanism. Background Technology

[0002] At construction sites where steel bars or sheet metal parts are processed and delivered, after the steel bars or sheet metal parts are cut to length, they need to be bundled together and then hoisted to the storage yard or work area. Currently, the commonly used bundling method is still "single-loop wrapping + manual tightening": workers hold binding wire or metal wire, wrap it around the circumference of the steel bar once, and then use a pry bar or pliers to manually tighten and break the joint. The binding strength of a single loop wrapping is low, and the manual labor intensity is high. Utility Model Content

[0003] In view of the above practical problems and the shortcomings of the existing technology, the main technical problem to be solved by this utility model is to provide a rebar binding mechanism that can automatically complete multiple rounds of continuous winding and instant binding.

[0004] To solve the above-mentioned technical problems, this application provides a rebar tying mechanism, which adopts the following technical solution:

[0005] A rebar binding mechanism can be hoisted as a whole onto a binding machine support. The binding mechanism includes a winding component, a first guide wire component, and a binding component.

[0006] The winding assembly has a circular through hole at its center for the bundle of reinforcing bars to pass through. A winding channel is coaxially arranged around the outer periphery of the circular through hole. The winding channel is formed by N independent wire feeding channels with circular arc segments in cross-section arranged side by side along the axial direction, where N≥2. The winding assembly has a circumferential wire inlet notch, and all wire feeding channels share a single circumferential wire inlet notch.

[0007] The first guide wire assembly is connected to the wire outlet end of the winding channel. The first guide wire assembly includes N-1 first guide wire channels and one second guide wire channel. One first guide wire channel is connected to two adjacent wire channels. The second guide wire channel is connected to the last wire channel.

[0008] The binding assembly includes a winding member and a drive motor for driving the winding member to rotate. The winding member is placed at the circumferential wire inlet. The winding member is provided with a first channel and a second channel. The first channel is connected to the first wire guide, and the second channel is connected to the second wire guide. The first channel includes a wire inlet for introducing metal wire, and the second channel includes a wire locking hole for locking the wire end.

[0009] In a preferred embodiment, the first channel and the second channel are independent of each other, and the two form a connected structure at the center of the winding member, the connected structure being perpendicular to the wire feeding direction.

[0010] In a preferred embodiment, the swivel hole is located below the connecting structure.

[0011] In a preferred embodiment, the wire inlet end of the winding channel is connected to a second wire guide assembly, and the second wire guide assembly is provided with N independent third wire guides arranged side by side along the axial direction for N wire feed paths; one third wire guide is connected to one wire feed path.

[0012] In a preferred embodiment, the third guide wire channel is configured as a V-shaped guide wire channel that gradually narrows from its inlet to its outlet.

[0013] In a preferred embodiment, the wire feed path, the first wire guide path, the second wire guide path, the third wire guide path, and the second channel are all formed in an open structure along the direction toward the center of the circular through hole.

[0014] In a preferred embodiment, the first channel is divided into an upper closed structure and a lower open structure along the direction toward the center of the circular through hole.

[0015] In a preferred embodiment, the first guide channel includes an inlet ramp, which is inclined from the outlet of the nth guide channel to the inlet of the (n+1)th guide channel.

[0016] In a preferred embodiment, the winding channel is composed of a first wire guide channel and a second wire guide channel. The first wire guide assembly is provided with a first wire guide channel, and the inlet of the first wire guide channel is connected to the outlet of the first wire guide channel.

[0017] The winding component includes a third channel arranged laterally alongside the first channel. The first channel is connected to the inlet of the first guide channel, the inlet of the third channel is connected to the outlet of the first guide channel, and its outlet is connected to the inlet of the second guide channel.

[0018] In a preferred embodiment, the second channel and the third channel are offset from one another along the radial direction of the circular through hole, with the second channel located behind the third channel;

[0019] The upper half of the second channel and the third channel are interconnected to form an integral channel, while the lower half of the two channels are set separately. The lower half of the second channel is set as the wire hole, and the lower half of the third channel is an open through-slot structure.

[0020] The depth of the first guide wire channel radially outward along the circular through hole is less than the depth of the second guide wire channel. At the same time, the depth of the third channel radially outward along the circular through hole is adapted to the depth of the first guide wire channel, and the depth of the second channel is adapted to the depth of the second guide wire channel. The first guide wire channel and the second guide wire channel share the same outlet.

[0021] In summary, this application has the following beneficial effects:

[0022] 1. This utility model, by setting up a winding component and a first wire guide component, including a circular through hole and N wire guides, guides the metal wire in conjunction with the first wire guide component. A single wire can be wound in multiple staggered turns, realizing continuous multi-turn winding of a single wire, thus solving the problem of low binding strength caused by single-turn winding.

[0023] 2. This utility model uses a binding assembly and a winding member and a first guide wire assembly to guide the metal wire. After the metal wire is wound, its head and tail ends are locked in the winding member. The rotation of the winding member enables the twisted loop to loosen and lock the head end at the moment the tail end of the metal wire breaks, thus completing the twisting and cutting of the metal wire.

[0024] 3. This utility model sets up N independent wire feeding channels, a first wire guide channel, a second wire guide channel, a first channel, and a second channel, and sets a wire locking hole in the second channel. The drive motor drives the winding member to rotate. When the metal wire is fed, it is introduced into the first wire feeding channel through the first channel. Then, under the guidance of the first wire guide channel, the adjacent two wire feeding channels are staggered to form multiple turns of winding. When the last wire feeding channel is completed, it is introduced into the second channel through the second wire guide channel, and the wire locking hole is used to lock the end of the metal wire. The winding member is rotated to complete the twisting and cutting of the metal wire.

[0025] 4. This utility model provides a rebar binding mechanism that can automatically wrap bundled rebars in multiple turns and lock them in place, automatically completing the two steps of wrapping and binding the bundled rebars. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the strapping mechanism being installed on the strapping machine support in this embodiment;

[0027] Figure 2 This is a schematic diagram of the overall structure of the binding mechanism in this embodiment;

[0028] Figure 3 This is a schematic diagram of the structure of the first wire guide assembly, the winding member, and the wire feeding of the second wire guide assembly in this embodiment;

[0029] Figure 4 This is a schematic diagram of the overall structure of the winding component in this embodiment;

[0030] Figure 5 These are schematic diagrams of the first guidewire assembly from two different perspectives in this embodiment;

[0031] Figure 6 These are schematic diagrams of the second guidewire assembly from two different perspectives in this embodiment.

[0032] Explanation of reference numerals in the attached drawings: 1. Winding assembly; 11. Circular through hole; 12. Wire winding channel; 121. Wire path one; 122. Wire path two; 13. Circumferential wire inlet notch; 2. First wire guide assembly; 21. First wire guide path; 211. Inlet slope; 22. Second wire guide path; 3. Binding assembly; 31. Winding component; 311. First channel; 3111. Wire inlet; 3112. Half of the structure is open; 312. Second channel; 3121. Wire clamping hole; 313. Third channel; 314. Connecting structure; 32. Drive motor; 4. Second wire guide assembly; 41. Third wire guide path; 5. Metal wire; 51. First metal wire line; 52. Second metal wire line; 53. Wire end; 6. Binding machine support; 7. Wire feeding mechanism; 101. Inlet; 102. Outlet. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0037] like Figure 1This embodiment provides a rebar tying mechanism, which can be installed as a whole on the tying machine support 6, and can be used to tie bundles of rebar with a maximum diameter of 600mm. In this embodiment, the tying machine can be an electric forklift with a load capacity of 3 tons. The rebar tying mechanism is fixed by the front suspension of the forklift, realizing the mobile tying function of the rebar tying mechanism.

[0038] Specifically, the binding mechanism includes a winding assembly 1, a first guide wire assembly 2, and a binding assembly 3.

[0039] The winding assembly 1 has a circular through hole 11 (e.g., a circular through hole 11) coaxially disposed at its center for the bundle of reinforcing bars to pass through. Figure 2 Furthermore, a winding channel 12 is coaxially arranged on the outer periphery of the circular through hole 11. The winding channel 12 is interconnected with the circular through hole 11 to facilitate wire feeding and winding. The winding channel 12 is formed by N (N≥2) independent wire feeding channels with circular arc cross-sections arranged side by side along the axial direction. The winding assembly 1 is connected to the winding channel 12 and is provided with a circumferential wire inlet notch 13. The circumferential wire inlet notch 13 is used to allow the metal wire 5 to be introduced tangentially along the circumference. The two ends of each wire feeding channel (the two ends are the inlet 101 and the outlet 102) converge at the same circumferential wire inlet notch 13. All wire feeding channels share the same circumferential wire inlet notch 13, realizing a closed-loop wire feeding with single-port entry and exit, which can complete wire feeding and winding in one go.

[0040] The two ends of the winding channel 12 are the wire inlet end and the wire outlet end, respectively. The first wire guide assembly 2 is disposed at the wire outlet end of the winding channel 12 (e.g., ...). Figure 2 The first guide wire assembly 2 includes N-1 first guide wire channels 21. Each first guide wire channel 21 connects to two adjacent wire channels. That is, the inlet 101 of one first guide wire channel 21 is connected to the outlet of one wire channel, and its outlet 102 is connected to the inlet of an adjacent wire channel. During the multi-turn winding of the metal wire 5, the metal wire 5 can be transferred from one wire channel to another adjacent wire channel through the first guide wire channel 21, so that the metal wire 5 automatically jumps into the k+1th turn after the kth turn is completed, realizing continuous multi-turn winding of a single wire.

[0041] The binding assembly 3 includes a wrapping member 31 and a drive motor 32 for driving the wrapping member 31 to rotate (e.g., ...). Figure 2 The winding member 31 is disposed at the circumferential wire inlet 13. The winding member 31 includes a first channel 311 and a second channel 312 that are independently disposed. The two channels are located at the center of the winding member 31 and are perpendicularly connected in the wire feeding direction to form a connecting structure 314 (e.g., ...). Figure 4 The first channel 311 includes an inlet 3111. The first channel 311 is connected to the first wire feeding path, that is: the outlet 102 of the first channel 311 is connected to the inlet of the first wire feeding path for initial wire drawing. The metal wire 5 of the wire feeding mechanism 7 is introduced through the inlet 3111.

[0042] The second channel 312 includes a card hole 3121 (such as...) Figure 4 The wire-locking hole 3121 is located below the connecting structure 314. The first wire guide assembly 2 also includes a second wire guide channel 22, which connects to the last wire guide channel. That is, the inlet 101 of the second wire guide channel 22 receives the outlet of the last wire guide channel, and the outlet 102 of the second wire guide channel 22 connects to the inlet 101 of the second channel 312. This is used to guide the wire end 53 of the metal wire 5 to the second channel 312 and lock it in the wire-locking hole 3121 to lock the wire end 53 of the metal wire 5.

[0043] The wire 5 is wound as follows: it enters through the inlet 3111 of the first channel 311 and is guided to the first wire path. It then begins to wind along the wire path, and through the cooperation of N-1 first guide paths 21, it begins to wind along N wire paths. After multiple turns, when the wire 5 has completed the last wire path, the end 53 of the wire 5 is guided from the outlet 102 of the second guide path 22 to the inlet 101 of the second channel 312 and locked in the wire locking hole 3121. Inside, using the tension of the metal wire 5 itself, the wire end 53 of the metal wire 5 is locked in the wire locking hole 3121. At this time, the drive motor 32 is started to drive the winding member 31 to rotate. The tail end of the metal wire 5, which is connected to the wire feeding mechanism 7 at the entrance 101 of the first channel 311, is first twisted into a rope and then breaks under the combined stress of torsion and bending. The tail end is loose and the wire end 53 is locked. When the winding member 31 rotates, the rope loop loosens and locks the head end at the moment the tail end of the metal wire 5 breaks, thus completing the twisting and cutting of the metal wire 5.

[0044] To facilitate the introduction of the metal wire 5, a second wire guide assembly 4 is provided at the wire inlet end of the wire winding channel 12 (such as...). Figure 2 The second guide wire assembly 4 corresponds to N third guide wire channels 41 arranged side by side along the axial direction for N wire feeding channels, with one third guide wire channel 41 connecting to one wire feeding channel. The third guide wire channel 41 is configured as a V-shaped guide wire channel, gradually narrowing from its inlet 101 to its outlet 102 (e.g., ...). Figure 6 This forms a trumpet-shaped guide surface, facilitating the smooth introduction of the metal wire 5 into the wire guide channel entrance. The N third wire guide channels 41 are independent channels to prevent wire misalignment.

[0045] To facilitate the binding of the metal wire 5 onto the bundled reinforcing bars, the wire guide, the first guide 21, the second guide 22, the third guide 41, and the second channel 312 are all formed with an open structure in the direction towards the center of the circular through hole 11, which facilitates the detachment of the metal wire 5 from the bundled reinforcing bars (e.g., ...). Figure 2 ).

[0046] Since the winding member 31 is ultimately used for twisting the metal wire 5, in order to complete the twisting of the beginning and end of the metal wire 5, the first channel 311 provided on the winding member 31 is divided into an upper closed structure and a lower open structure 3112 along the direction towards the center of the circular through hole 11 (as shown in the image). Figure 4 When the member 31 rotates, the metal wire 5 at the wire inlet 3111 will be cut off and then stuck in the closed structure of the upper part to prevent the metal wire 5 from detaching before it is twisted. After the metal wire 5 is twisted, it can be detached from the open structure of the lower part and tied to the bundle of steel bars.

[0047] The specific structural design is as follows:

[0048] like Figure 2 In this embodiment, the winding channel 12 of the winding assembly 1 consists of two independent winding paths with circular arc segments in cross-section, namely winding path one 121 and winding path two 122. Correspondingly, as Figure 5 The first guide wire assembly 2 is provided with a first guide wire channel 21, which includes an inlet inclined surface 211. The inlet inclined surface 211 is inclined from the outlet of the first guide wire channel 121 to the inlet of the second guide wire channel 122, which facilitates the staggered introduction of the metal wire 5.

[0049] like Figure 3 Since the winding member 31 is located at the circumferential wire inlet 13, a third channel 313 is provided on the winding member 31 corresponding to the first wire guide 21. The first channel 311 and the third channel 313 on the winding member 31 are arranged horizontally side by side and independently. The outlet 102 of the first channel 311 is connected to the inlet of the first wire guide 121. The outlet 102 and inlet 101 of the third channel 313 are connected to the inlet of the second wire guide 122 and the outlet 102 of the first wire guide 21, respectively. The setting of the third channel 313 plays a guiding role, so that the metal wire 5 can be accurately and correctly guided into the second wire guide 122 for the second winding.

[0050] In this embodiment, taking a two-loop wire guide as an example, wire guide 121 is the first loop and wire guide 122 is the last loop. When the metal wire 5 is initially introduced into wire guide 122, it is introduced through the third channel 313. When the metal wire 5 is exited from the outlet 102 of wire guide 122, it needs to enter the second channel 312 and be inserted into the wire-holding hole 3121. Therefore, in the structural design of the second channel 312 and the third channel 313, the second channel 312 and the third channel 313 are arranged in a radially staggered manner, with the second channel 312 located behind the third channel 313. Figure 4The upper half of the second channel 312 and the third channel 313 are interconnected to form an integrated channel, while the lower half of the two channels are set separately. The lower half of the second channel 312 is set as a wire hole 3121, while the lower half of the third channel 313 is an open through-slot structure.

[0051] Furthermore, to ensure that the metal wire 5 can accurately enter the third channel 313 or the second channel 312 during routing, a staggered guide wire setting is implemented on the first guide wire assembly 2, such as... Figure 5 Specifically, the depth of the first guide wire channel 21 radially outward along the circular through hole 11 is less than the depth of the second guide wire channel 22. At the same time, the depth of the third channel 313 radially outward along the circular through hole 11 is adapted to the depth of the first guide wire channel 21, and the depth of the second channel 312 is adapted to the depth of the second guide wire channel 22.

[0052] Furthermore, since the upper parts of the second channel 312 and the third channel 313 are interconnected to form an integrated channel, in order for both guide wires to be introduced into this integrated channel, the first guide wire channel 21 and the second guide wire channel 22 share the same outlet 102.

[0053] like Figure 3 When the metal wire 5 is introduced into the wire guide from the first wire guide 121 to the second wire guide 122 in a staggered manner (e.g. Figure 3 The first metal wire line 51), the wire end 53 of the metal wire 5 is first introduced into the first guide wire channel 21 from the outlet 102 of the first guide wire channel 121. Utilizing the tension of the metal wire 5 itself and the depth of the first guide wire channel 21, the wire end 53 of the metal wire 5 is guided from the inclined surface of the first guide wire channel 21 to the outlet 102 and then introduced into the third channel 313. When the metal wire 5 is exited from the outlet 102 of the second guide wire channel 122 (e.g.... Figure 3 The second metal wire line 52), the wire end 53 of the metal wire 5 enters the second guide wire channel 22. Utilizing the tension of the metal wire 5 itself in conjunction with the depth of the second guide wire channel 22, the wire end 53 of the metal wire 5 can be guided from the second guide wire channel 22 to the second channel 312, and thus be inserted into the wire-locking hole 3121.

[0054] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A rebar tying mechanism, which can be hoisted as a whole onto a tying machine support, characterized in that: The binding mechanism includes a winding assembly, a first guide wire assembly, and a binding assembly; The winding assembly has a circular through hole at its center for the bundle of reinforcing bars to pass through. A winding channel is coaxially arranged around the outer periphery of the circular through hole. The winding channel is formed by N independent wire feeding channels with circular arc segments in cross-section arranged side by side along the axial direction, where N≥2. The winding assembly has a circumferential wire inlet notch, and all wire feeding channels share a single circumferential wire inlet notch. The first guide wire assembly is connected to the wire outlet end of the winding channel. The first guide wire assembly includes N-1 first guide wire channels and one second guide wire channel. One first guide wire channel is connected to two adjacent wire channels. The second guide wire channel is connected to the last wire channel. The binding assembly includes a winding member and a drive motor for driving the winding member to rotate. The winding member is placed at the circumferential wire inlet. The winding member is provided with a first channel and a second channel. The first channel is connected to the first wire guide, and the second channel is connected to the second wire guide. The first channel includes a wire inlet for introducing metal wire, and the second channel includes a wire locking hole for locking the wire end.

2. The rebar binding mechanism according to claim 1, characterized in that: The first channel and the second channel are independent of each other, and they form a connected structure at the center of the winding member, and the connected structure is perpendicular to the wire feeding direction.

3. The rebar binding mechanism according to claim 2, characterized in that: The swivel hole is located below the connecting structure.

4. A rebar binding mechanism according to claim 1, characterized in that: The wire inlet end of the winding channel is connected to a second wire guide assembly, and the second wire guide assembly is provided with N independent third wire guides arranged side by side along the axial direction for N wire feed paths; one third wire guide is connected to one wire feed path.

5. A rebar binding mechanism according to claim 4, characterized in that: The third guide wire channel is configured as a V-shaped guide wire channel, which gradually narrows from its inlet to its outlet.

6. A rebar binding mechanism according to claim 4, characterized in that: The wire feed path, the first wire guide path, the second wire guide path, the third wire guide path, and the second channel all form an open structure along the direction toward the center of the circular through hole.

7. A rebar binding mechanism according to claim 6, characterized in that: The first channel is divided into an upper closed structure and a lower open structure along the direction towards the center of the circular through hole.

8. A rebar binding mechanism according to claim 1, characterized in that: The first guide channel includes an inlet ramp, which is inclined from the outlet of the nth guide channel to the inlet of the (n+1)th guide channel.

9. A rebar binding mechanism according to claim 1, characterized in that: The winding channel consists of a first wire guide channel and a second wire guide channel. The first wire guide assembly is provided with a first wire guide channel, and the inlet of the first wire guide channel is connected to the outlet of the first wire guide channel. The winding component includes a third channel arranged laterally alongside the first channel. The first channel is connected to the inlet of the first guide channel, the inlet of the third channel is connected to the outlet of the first guide channel, and its outlet is connected to the inlet of the second guide channel.

10. A rebar binding mechanism according to claim 9, characterized in that: The second channel and the third channel are offset from each other along the radial direction of the circular through hole, with the second channel located behind the third channel; The upper half of the second channel and the third channel are interconnected to form an integral channel, while the lower half of the two channels are set separately. The lower half of the second channel is set as the wire hole, and the lower half of the third channel is an open through-slot structure. The depth of the first guide wire channel radially outward along the circular through hole is less than the depth of the second guide wire channel. At the same time, the depth of the third channel radially outward along the circular through hole is adapted to the depth of the first guide wire channel, and the depth of the second channel is adapted to the depth of the second guide wire channel. The first guide wire channel and the second guide wire channel share the same outlet.

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