A reciprocating wire feed mechanism

Abstract

The utility model discloses a reciprocating wire feeding mechanism relates to wire feeding equipment technical field, including the temporary storage platform plate that is provided with the movable block on it, and movable block can drive the wire to reciprocating slide on the temporary storage platform plate to make movable block have the motion initial state and motion final state that can reciprocating switch, the movable block both sides located under motion initial state are equipped with respectively for the wire that makes the clamping or loosening action wire inlet limiting piece and wire outlet limiting piece, and both are alternatively to the wire that makes the clamping action. The utility model discloses through the cooperation of movable block and wire inlet, wire outlet limiting piece's action, realized the efficient reciprocating movement of the wire in the cavity, compared with the design of wire feeding mechanism in the prior art, the wire in this application can be driven smoothly and stably by movable block and temporarily stored in the cavity, the friction degree is small in this process, the wear degree produced is smaller, convenient for long -term use, the degree of manual intervention is lower.

Description

Technical Field

[0001] This utility model relates to the field of wire feeding equipment technology, specifically to a reciprocating wire feeding mechanism. Background Technology

[0002] The rebar tying robot is an automated device developed for the rebar tying process in the construction industry. Its core value lies in replacing traditional manual tying operations with intelligent mechanical means. In high-rise building and bridge construction, the number of rebar nodes is large and densely distributed. Traditional manual tying suffers from low efficiency (average time of 20-30 seconds per node), high labor intensity (requiring frequent bending over), and large quality fluctuations (the tightness of the ties depends on the worker's experience). To address this, the tying robot adopts an architecture design of "three-dimensional motion robot + tying gun," enabling it to autonomously complete the rebar tying work.

[0003] For the binding action of a binding gun, a corresponding wire feeding mechanism is generally required to continuously supply binding wire to the binding gun. For example, the patent document with authorization announcement number CN220666989U discloses a wire feeding mechanism for a double-wire rebar binding machine. This mechanism drives the drive wheel to rotate through a drive component (usually a geared motor), and uses a lifting component (pneumatic or electromagnetic drive) to control the opening and closing action of the driven wheel: during the wire feeding stage, the driven wheel presses down and meshes with the drive wheel, pushing the binding wire through the friction between the two wheels; when changing direction or stopping the machine, the lifting component lifts the driven wheel to release the clamp.

[0004] While the aforementioned gear meshing design can achieve a certain level of wire feeding accuracy, it reveals at least the following structural defects in engineering applications: for example, the gear pair experiences high tooth surface wear rate under starting and stopping conditions of up to several hundred times per minute, requiring frequent manual adjustment of the preload to maintain accuracy, resulting in a high degree of manual intervention.

[0005] To address these issues, we propose a reciprocating wire feeding mechanism. Utility Model Content

[0006] The purpose of this utility model is to solve the problems in the prior art by proposing a reciprocating wire feeding mechanism. This wire feeding mechanism, through the design of wire inlet limit and wire outlet limit, and by applying the reciprocating sliding action of the adaptable moving block, allows the wire to move smoothly in the cavity and be temporarily stored, which can be used for a long time with a low degree of manual intervention.

[0007] To solve the above problems, this utility model provides the following technical solution:

[0008] A reciprocating wire feeding mechanism includes a temporary storage platform on which a movable block is mounted. The movable block can drive the wire to slide back and forth on the temporary storage platform, so that the movable block has a reciprocally switchable initial motion state and final motion state. In the initial motion state, the movable block is provided with a wire feeding limiter and a wire output limiter on both sides for clamping or releasing the wire. The two limiters can clamp a pair of wires at a time. When the movable block switches from the initial motion state to the final motion state, the wire feeding limiter releases and the wire output limiter clamps. When the movable block switches from the final motion state to the initial motion state, the wire feeding limiter clamps and the wire output limiter releases.

[0009] As a further embodiment of this utility model: the temporary storage platform has a cavity inside for the sliding assembly of the moving block, and the two sides of the temporary storage platform are provided with an inlet and an outlet near the wire feeding limit and the wire output limit, respectively, and the inlet and outlet are connected to the cavity, so that when the moving block slides in the corresponding state, the inlet and outlet can be selected as the wire feeding channel.

[0010] As a further embodiment of this utility model: driven wheels are rotatably arranged in the cavity near the inlet and outlet positions, and the two driven wheels are respectively located on both sides of the moving block.

[0011] As a further embodiment of this utility model: the temporary storage platform is provided with a sliding groove for mounting the moving block along its length direction, and the temporary storage platform is provided with a drive source for driving the moving block to move along the length direction of the sliding groove.

[0012] As a further embodiment of this utility model: the moving block is configured as a wheel structure, and a connecting shaft is coaxially rotatable on the moving block of the wheel structure. One end of the connecting shaft is slidably installed in the slide groove and fixedly connected to the execution end of the drive source.

[0013] As a further embodiment of this utility model: the wire feeding limiting component includes a first finger cylinder disposed on a temporary storage platform. A first clamping block is fixedly disposed on each of the two jaws of the first finger cylinder. The clamping parts of the two first clamping blocks both extend beyond the midpoint of the line connecting the two jaws, so that the separation action of the two first clamping blocks is the clamping action, and the proximity action of the two first clamping blocks is the releasing action.

[0014] As a further embodiment of this utility model: the wire feeding limiting component includes a second finger cylinder disposed on a temporary storage platform. A second clamping block is fixedly disposed on each of the two jaws of the second finger cylinder. The clamping parts of the two second clamping blocks both extend beyond the midpoint of the line connecting the two jaws, so that the separation action of the two second clamping blocks is the clamping action, and the proximity action of the two second clamping blocks is the releasing action.

[0015] As a further embodiment of this utility model: the wire feeding mechanism also includes a bracket set on the temporary storage platform and near the outlet position, the bracket is provided with an anti-skid guide wheel, and the bracket is provided with a plurality of mounting holes for selective installation of one of the anti-skid guide wheels.

[0016] As a further embodiment of this utility model, the wire feeding mechanism also includes a profile for fixing one end of the temporary storage platform.

[0017] As a further embodiment of this invention, the driving source is a magnetically coupled cylinder.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the coordinated action of the moving block and the wire feeding and output limiting components, efficient reciprocating motion of the binding wire within the cavity is achieved. Compared to the design of existing wire feeding mechanisms, the binding wire in this application can be smoothly and stably driven by the moving block and temporarily stored within the cavity. This process involves low friction and minimal wear, facilitating long-term use and requiring minimal manual intervention. Simultaneously, the dynamically switching clamping mechanism effectively avoids uneven tension or wire jamming caused by synchronous operation during wire feeding, significantly improving the reliability and continuity of the wire feeding action.

[0020] 2. By integrating the moving block into the cavity of the temporary storage platform and providing inlets and outlets on both sides as wire feeding channels, this design optimizes the spatial layout of the wire feeding path. The cavity structure not only provides a stable sliding track for the moving block but also reduces interference from the external environment on the wire through the isolation design of the inlets and outlets. Furthermore, the selective conduction characteristic of the inlet and outlet can automatically switch the wire feeding direction according to the movement state of the moving block, simplifying the mechanical control logic of the wire feeding process. This compact cavity design saves equipment space and reduces the risk of tangling or contamination that may occur when the wire is exposed to the elements.

[0021] 3. The addition of driven wheels inside the cavity further enhances the smoothness of the wire binding movement. Two driven wheels are positioned on either side of the moving block, effectively sharing the frictional resistance generated during the wire binding's sliding process and reducing direct contact wear between the wire binding and the cavity wall. The rotation of the driven wheels guides the wire binding smoothly through the inlet or outlet, preventing wire breakage caused by wire bending or excessive localized stress.

[0022] 4. The combination of the chute and the drive source enables precise control of the moving block's motion. The chute is set along the length of the temporary storage plate, providing the moving block with a clear linear motion trajectory and ensuring the repeatability accuracy of the wire feeding stroke.

[0023] 5. By designing the moving block as a wheel-type structure and cooperating with the sliding connection shaft, the friction loss problem of the traditional slider structure is effectively solved. The wheel-type moving block not only reduces the coefficient of friction with the cavity through rolling contact, but also reduces the resistance encountered during the wire-binding process.

[0024] 6. The innovative design of the finger-cylinder driven clamping block solves the stroke limitation problem of traditional pneumatic grippers. By moving the clamping part of the clamping block past the midpoint of the jaw connection line, clamping is achieved through a disjointed motion, resulting in a larger clamping range within the limited cylinder stroke. The cross design of the two clamping blocks evenly distributes the clamping force, preventing the wire from deforming due to excessive pressure at a single point. Furthermore, the high response speed and programmable control characteristics of the finger cylinder allow the clamping and releasing actions to be precisely matched with the movement rhythm of the moving block, significantly improving the synchronization and reliability of the wire feeding action.

[0025] 7. The combined design of the anti-slip wire guide roller and the multi-mounting hole bracket provides high adaptability. The anti-slip wire guide roller guides the wire output direction through rolling contact, effectively suppressing wire jumps or deviations caused by inertia; the multiple mounting holes on the bracket allow selection of the optimal guide roller installation position according to wire characteristics, optimizing the wire output trajectory. This structure not only reduces frictional loss between the wire and the exit edge, but also allows for tension control to adapt to different process requirements by adjusting the guide roller position, significantly improving the equipment's versatility and stability. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0029] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0030] Figure 4 yes Figure 2 A schematic diagram of the front view of the structure in the current state;

[0031] Figure 5 yes Figure 2 A schematic diagram of the rear view structure in the current state.

[0032] In the diagram: 1. Temporary storage platform; 101. Cavity; 102. Inlet; 103. Outlet; 2. Moving block; 3. Wire feed limiter; 301. First finger cylinder; 302. First clamping block; 4. Wire discharge limiter; 5. Driven wheel; 6. Slide groove; 7. Drive source; 8. Bracket; 9. Anti-skid guide wheel; 10. Assembly hole; 11. Profile; a. Binding wire; b. Binding gun. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figures 1-5 As shown, a reciprocating wire feeding mechanism includes a profile 11, a binding gun b at the bottom of the profile 11, and a wire roll on the side of the top of the profile 11, with binding wire a wound on the wire roll. A temporary storage plate 1 is located between the wire roll a and the binding gun b, and one end of the temporary storage plate 1 is fixedly mounted on the profile 11. The temporary storage plate 1 is used to convey the binding wire a from the wire roll to the binding gun b.

[0035] Specifically, the temporary storage platform 1 is assembled from two boards, and the inner sides of both boards are recessed, forming a cavity 101 on the inner side of the temporary storage platform 1. Figure 2 It shows in Figure 1 In the state where a piece of material is removed to expose the cavity 101, a temporary storage platform 1 has a groove 6 along its length, which communicates with the cavity 101. A moving block 2 is slidably mounted on the groove 6. A drive source 7 is provided on the temporary storage platform 1, and the actuator of the drive source 7 is connected to the moving block 2. The drive source 7 is used to drive the moving block 2 to slide back and forth within the groove 6. Therefore, the moving block 2 has a reciprocating initial state and a reciprocating final state. It should be noted that the initial state and the final state are only the initial and final positions of the moving block 2 on the groove 6. This paper uses... Figure 2 The position of the moving block 2 shown is the initial state of motion, and the position of the moving block 2 when it moves to the leftmost end is the final state of motion.

[0036] exist Figure 2In the indicated state, the moving block 2 has a wire feeding limiter 3 and a wire exiting limiter 4 on both sides for clamping or loosening the binding wire a, and the two can clamp the binding wire a in one pair. During use, when the moving block 2 switches from the initial state to the final state, that is, when it moves from right to left, the wire feeding limiter 3 loosens and the wire exiting limiter 4 clamps. Since the binding wire a will abut against the left side of the moving block 2, the leftward movement of the moving block 2 can drive the upper binding wire a to move and the wire roll to rotate. The lower binding wire a will be limited and fixed by the clamping action of the wire exiting limiter 4 and will not move. This movement of the moving block 2 achieves the temporary storage of a certain amount of binding wire a in the cavity 101. During subsequent use of the binding gun b, when the moving block 2 switches from its final state to its initial state (i.e., from left to right), the wire feeding limiter 3 clamps, and the wire output limiter 4 relaxes. Since the binding gun b itself has a certain dragging force on the binding wire a, the binding wire a temporarily stored in the cavity 101 can be dragged and used. It should be noted that during the above dragging process, the moving block 2 can be adjusted to move to the right according to the wire feeding progress of the binding gun b, using the moving block 2 to maintain a stable feeding state; of course, during the dragging process, the moving block 2 can also be directly driven to the right end, at which time the binding wire a will be directly temporarily stored in the cavity 101, and the binding gun b can then directly drag and use it.

[0037] Compared to the gear-meshing feeding mechanism in the prior art, this application achieves a certain amount of movable wire a temporarily stored in the cavity 101, so as to provide smooth feeding to the binding gun b. During this process, the wire a is in a follow-up state, so it will not be damaged. At the same time, the wire feeding mechanism of this application avoids the design of the gear-meshing mechanism in the prior art, so there will be no large wear and tear, and it is suitable for long-term use.

[0038] like Figure 2 and Figure 4 As shown, in order to ensure that the wire a can stably follow the moving block 2, this application adds wire a to both sides of the temporary storage platform 1 (with... Figure 2 As shown, the upper and lower sides of the temporary storage platform 1 are respectively located near the wire feeding limiter 3 and the wire exit limiter 4, with inlet 102 and outlet 103 respectively. Both inlet 102 and outlet 103 are connected to the cavity 101. Therefore, the binding wire a extending from the upper wire roll can reach the binding gun b in sequence from inlet 102, cavity 101, and outlet 103. When the moving block 2 slides in the corresponding state, inlet 102 and outlet 103 can be used as the wire feeding channel, so that the binding wire a can enter and exit the cavity 101 more stably without large-scale shaking.

[0039] For example Figure 2 and Figure 4As shown, in order to ensure that the wire a can move smoothly at the inlet 102 and outlet 103, this application has driven wheels 5 rotatably installed in the cavity 101 near the inlet 102 and outlet 103, and the two driven wheels 5 are respectively located on both sides of the moving block 2. Figure 4 As shown, the tie wire a extending from the upper wire roll can pass through the inlet 102, around the driven wheel 5 located above, around the moving block 2, around the driven wheel 5 located below, and through the outlet 103 to reach the binding gun b for use by the binding gun b. The driven wheel 5 can not only restrict the direction of the tie wire a within the inlet 102 and outlet 103, but also assist its movement.

[0040] like Figures 1-2 As shown, when the designed distance between the outlet 103 and the strapping gun b is too far and may cause the binding wire a to jump while walking, this application also includes a bracket 8 located on the temporary storage platform 1 and close to the outlet 103. The bracket 8 is provided with a rotating anti-slip wire guide wheel 9, and the bracket 8 is provided with a plurality of mounting holes 10 for selective installation of the anti-slip wire guide wheel 9. According to the design of different positions of the strapping gun b, the anti-slip wire guide wheel 9 can be adapted to be installed on the corresponding mounting hole 10 to achieve adaptive adjustment of the position of the anti-slip wire guide wheel 9.

[0041] like Figures 2-3 As shown, the designs of the infeed limiter 3 and the outfeed limiter 4 can be identical, for example, both being conventional clamps in the prior art. This paper presents one design where the infeed limiter 3 includes a first finger cylinder 301 mounted on a temporary storage platform 1. Each of the two jaws of the first finger cylinder 301 has a first clamping block 302 fixedly mounted on it. The clamping portions of the two first clamping blocks 302 extend beyond the midpoint of the line connecting the two jaws, so that the separation of the two first clamping blocks 302 constitutes the clamping action, and the approaching action constitutes the releasing action. Similarly, the outfeed limiter 4 includes a second finger cylinder mounted on the temporary storage platform 1. Each of the two jaws of the second finger cylinder has a second clamping block fixedly mounted on it. The clamping portions of the two second clamping blocks extend beyond the midpoint of the line connecting the two jaws, so that the separation of the two second clamping blocks constitutes the clamping action, and the approaching action constitutes the releasing action.

[0042] like Figures 1-2 and Figure 4As shown, to reduce the frictional force of the wire a moving on the moving block 2, the moving block 2 can be configured as a wheel structure. A connecting shaft 201 is coaxially mounted on the wheel-type moving block 2. One end of the connecting shaft 201 is slidably installed in the slide groove 6 and fixedly connected to the execution end of the drive source 7. Subsequently, during the movement of the moving block 2 driven by the drive source 7, since the wire a and the connecting shaft 201 located in the slide groove 6 are rotatably connected, the movement of the wire a can drive the moving block 2 to rotate, thus reducing the frictional force between the wire a and the moving block 2.

[0043] Regarding the design of the drive source 7 described above, the drive source 7 can be a conventional technology in the prior art, such as a magnetically coupled cylinder, a rodless cylinder, etc. Figure 5 As shown, this paper takes the driving source 7 as a magnetic coupling cylinder as an example. The actuator end of the magnetic coupling cylinder is fixedly connected to the connecting shaft 201 located in the slide groove 6. The horizontal sliding of the actuator end to the right can drive the connecting shaft 201 and the moving block 2 to move to the right.

[0044] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A reciprocating wire feeding mechanism, characterized in that, The device includes a temporary storage platform (1) on which a moving block (2) is mounted. The moving block (2) can drive the binding wire (a) to slide back and forth on the temporary storage platform (1) so that the moving block (2) has a reciprocating initial state and a reciprocating final state. The moving block (2) in the initial state is provided with a wire feeding limiter (3) and a wire output limiter (4) on both sides for clamping or loosening the binding wire (a). The two limiters can choose one pair of binding wires (a) to clamp. When the moving block (2) switches from the initial state to the final state, the wire feeding limiter (3) loosens and the wire output limiter (4) clamps. When the moving block (2) switches from the final state to the initial state, the wire feeding limiter (3) clamps and the wire output limiter (4) loosens.

2. The reciprocating wire feeding mechanism according to claim 1, characterized in that, The temporary storage platform (1) has a cavity (101) for sliding assembly of the moving block (2). The temporary storage platform (1) has an inlet (102) and an outlet (103) on both sides near the wire feeding limiter (3) and the wire exit limiter (4). Both the inlet (102) and the outlet (103) are connected to the cavity (101) so that when the moving block (2) slides in the corresponding state, one of the inlet (102) and the outlet (103) can be used as the wire feeding channel.

3. The reciprocating wire feeding mechanism according to claim 2, characterized in that, Driven wheels (5) are rotatably arranged in the cavity (101) near the inlet (102) and outlet (103), and the two driven wheels (5) are located on both sides of the moving block (2).

4. A reciprocating wire feeding mechanism according to any one of claims 1-3, characterized in that, The temporary storage platform (1) has a groove (6) for mounting the moving block (2) along its length direction, and the temporary storage platform (1) is provided with a drive source (7) for driving the moving block (2) to move along the length direction of the groove (6).

5. A reciprocating wire feeding mechanism according to claim 4, characterized in that, The moving block (2) is configured as a wheel structure. The moving block (2) of the wheel structure is provided with a connecting shaft (201) that rotates coaxially. One end of the connecting shaft (201) is slidably installed in the slide groove (6) and fixedly connected to the execution end of the drive source (7).

6. A reciprocating wire feeding mechanism according to any one of claims 1-3, characterized in that, The wire feeding limiter (3) includes a first finger cylinder (301) disposed on a temporary storage plate (1). A first clamping block (302) is fixedly disposed on each of the two jaws of the first finger cylinder (301). The clamping parts of the two first clamping blocks (302) both extend beyond the midpoint of the line connecting the two jaws, so that the separation action of the two first clamping blocks (302) is the clamping action, and the approach action of the two first clamping blocks (302) is the releasing action.

7. A reciprocating wire feeding mechanism according to any one of claims 1-3, characterized in that, The wire feeding limiting member (4) includes a second finger cylinder provided on the temporary storage platform (1). A second clamping block is fixedly provided on each of the two jaws of the second finger cylinder. The clamping part of each of the two second clamping blocks passes through the midpoint of the line connecting the two jaws, so that the separation action of the two second clamping blocks is the clamping action, and the proximity action of the two second clamping blocks is the releasing action.

8. A reciprocating wire feeding mechanism according to claim 2 or 3, characterized in that, The wire feeding mechanism also includes a bracket (8) located on the temporary storage platform (1) and near the outlet (103). The bracket (8) is provided with a rotating anti-slip wire guide wheel (9), and the bracket (8) is provided with a plurality of mounting holes (10) for selective installation of one of the anti-slip wire guide wheels (9).

9. A reciprocating wire feeding mechanism according to any one of claims 1-3, characterized in that, The wire feeding mechanism also includes a profile (11) for fixed installation at one end of the temporary storage platform (1).

10. A reciprocating wire feeding mechanism according to claim 5, characterized in that, The drive source (7) is a magnetically coupled cylinder.

Images