Binding machine capable of flattening binding knots

Abstract

The utility model relates to the technical field of strapping machines, and particularly discloses a strapping machine capable of flattening strapping knots. The wire winding mechanism comprises a fixed clamping piece, a movable sleeve which is arranged outside the fixed clamping piece and can move relative to the axial direction, a driving assembly used for driving the movable sleeve, a first clamping jaw and a second clamping jaw, wherein the first clamping jaw and the second clamping jaw are connected with the fixed clamping piece. A transverse hook is arranged at the tail end of the first clamping jaw; a stop cap is arranged at the tail end of the second clamping jaw; the movable sleeve is provided with a short bending part and a long bending part; the movable sleeve advances to a preset position, after the two clamping jaws are folded towards the fixed clamping piece to be in a clamping state, the tail end of the long bent part is flush with or crosses the inner side of the transverse hook of the first clamping jaw, and an axial distance is reserved between the tail end of the short bent part and the inner side of the stop cap of the second clamping jaw. One end of a silk thread coil manufactured by the binding machine is transversely bent, and the other end of the silk thread coil is downwards bent, so that the power consumption is lower, the binding stability is good, the silk thread end is shorter, the silk thread consumption is reduced, and the consumable cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bundling machine, specifically discloses a kind of bundling machine of flat push bundling knot head. BACKGROUND

[0002] In the field of building construction, the fixing and connecting of steel bars are the key steps to ensure the stability and safety of the structure. The traditional steel bar bundling work is usually completed manually by construction workers, which is not only inefficient but also labor-intensive. In order to improve work efficiency and safety, bundling machines have emerged as the times require, which are tools held by construction workers to quickly and accurately bundle iron wire on steel bars, realizing the fixing and connecting of steel bars.

[0003] The existing bundling machine structure design usually includes a casing, a coiling plate, a wire feeding mechanism, a wire cutting mechanism, a wire winding mechanism and other key components. These components work together to realize the steps of wire feeding, coiling, cutting and tightening. However, the existing bundling machine has some deficiencies in use. For example, Figure 1 As shown in the figure, the existing bundling machine has iron wire loops after bundling, and the two ends of the loop are raised upwards. This design can cause the iron wire head to be covered during cement pouring, resulting in excessive pouring thickness, which is not conducive to the construction requirements of some low-thickness cement boards. In addition, the raised iron wire head can easily cause injury to workers.

[0004] To solve the above problems, some bundling machines have been modified to the wire winding mechanism. The clamping jaw used to clamp the iron wire head is provided with a bent head on one side, which clamps the iron wire head and bends it downward at the same time, as shown in Figure 2 Thus, the adverse effects of the previous iron wire loop with two ends raised upwards are avoided. However, this design not only increases the motor power consumption of the bundling machine, but also has certain requirements for the length of the iron wire head, which is not conducive to saving the amount of iron wire. Therefore, it is necessary to further improve the structure of the clamping head of the wire winding mechanism to improve the efficiency and safety of the bundling machine and reduce material waste. INVENTION CONTENTS

[0005] The utility model aims to provide a kind of bundling machine of flat push bundling knot head to solve the problems in prior art, improve bundling efficiency, ensure construction safety, and reduce material consumption.

[0006] The utility model discloses a kind of bundling machine of flat push bundling knot head, using the following technical solutions:

[0007] The application relates to a bundling machine capable of pushing and flattening a bundling knot, which comprises a machine shell, a wire outlet plate arranged at the front end of the machine shell, a wire feeding mechanism, a wire cutting mechanism and a wire winding mechanism arranged in the machine shell; the wire winding mechanism comprises a fixed clamping piece, a moving sleeve arranged outside the fixed clamping piece and capable of moving axially, a driving assembly for driving the moving sleeve, and a first clamping jaw and a second clamping jaw coupled with the fixed clamping piece; the two sides of the fixed clamping piece are respectively provided with a first clamping space and a second clamping space for the two ends of a wire to pass through between the first clamping jaw and the second clamping jaw; the end of the first clamping jaw is provided with a horizontal hook, and the end of the second clamping jaw is provided with a stop cap; the moving sleeve is provided with a short bending part and a long bending part; after the moving sleeve advances to a predetermined position and the two clamping jaws are folded towards the fixed clamping piece to a clamping state, the end of the long bending part is flush with or beyond the inner side of the horizontal hook of the first clamping jaw, and the end of the short bending part leaves an axial distance to the inner side of the stop cap of the second clamping jaw.

[0008] Preferably, the stop cap comprises a cap top and a cap edge part, the cap edge part is arranged above the second clamping jaw, and the cap top is arranged in front of the second clamping jaw.

[0009] Preferably, the distance from the outer top surface of the horizontal hook of the first clamping jaw to the inner top wall of the cap edge part of the stop cap of the second clamping jaw is 5-12 mm.

[0010] Preferably, the cap edge part is arc-shaped and extends beyond the lower end of the short bending part.

[0011] Preferably, the axial distance from the end of the long bending part to the inner side of the horizontal hook of the first clamping jaw is 0.5-3 mm.

[0012] Preferably, after the moving sleeve advances to the predetermined position, the second clamping jaw and the fixed clamping piece cooperate to clamp and fix the front end of the looped wire, the first clamping jaw and the fixed clamping piece cooperate to limit the rear end of the looped wire from being separated, and the wire can be tightened under the driving of the wire feeding mechanism in the first clamping space.

[0013] Preferably, the side corresponding to the first clamping jaw of the fixed clamping piece is provided with a relief slope, and after the moving sleeve advances to the predetermined position, the minimum width between the first clamping jaw and the relief slope is greater than the wire diameter.

[0014] Preferably, the side corresponding to the relief slope of the first clamping jaw is provided with a guide arc surface.

[0015] Preferably, the minimum width between the first clamping jaw and the relief slope is 1.2-2 times the wire diameter.

[0016] Preferably, the side close to the wire cutting mechanism of the end of the long bending part is provided with a wire-avoiding groove.

[0017] Compared with the prior art, the application has at least the following beneficial effects:

[0018] The utility model discloses a long and short bending part is designed to the mobile sleeve, and the silk loop that is tied is one head transversely bent, and one head is bent downward, and the head of transversely bent is not limited to the cement thickness caused by the motor, and the problem of high power consumption of continuing to bend downward is reduced, and the head of bending downward can better guarantee the silk loop tying stability, and is not easy to loosen in the subsequent construction process, in addition, the silk line is formed into a loop, and the silk line head reaches the stop cap and is stopped when touching the stop cap, and the silk line head of the scheme is shorter, and the silk line consumption is reduced, and the material cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The silk loop shape of the tying mechanism of the prior art is obtained.

[0020] Figure 2 The silk loop shape of another tying mechanism of the prior art is obtained.

[0021] Figure 3 The structure diagram of the tying machine of the utility model is pushed flat tying knot head;

[0022] Figure 4 The schematic diagram of the removal of the machine shell and other components of the utility model is shown.

[0023] Figure 5 The silk winding mechanism of the utility model is shown.

[0024] Figure 6 The first jaw structure of the utility model is shown.

[0025] Figure 7 The second jaw structure of the utility model is shown.

[0026] Figure 8 The two jaw opening state of the utility model is shown.

[0027] Figure 9 The two jaw closing state of the utility model is shown.

[0028] Figure 10 The two jaw closing state of the utility model is shown.

[0029] Figure 11 The silk feeding step state of the tying machine of the utility model is shown.

[0030] Figure 12 The silk feeding step state of the tying machine of the utility model is shown.

[0031] Figure 13 The bundling machine pull wire step state diagram of the utility model;

[0032] Figure 14 The bundling machine cut wire step state diagram of the utility model;

[0033] Figure 15 The bundling machine bend wire step state diagram of the utility model;

[0034] Figure 16 The bundling machine tight wire step state diagram of the utility model.

[0035] Explanation of the attached drawings:

[0036] 1, the machine shell, 2, the wire plate, 3, the wire feeding mechanism, 4, the wire cutting mechanism, 5, the wire winding mechanism, 51, the drive assembly, 52, the moving sleeve, 521, the short bending part, 522, the long bending part, 5221, the wire avoiding groove, 53, the fixed clamping part, 531, the avoiding slope, 54, the first clamping jaw, 541, the guide arc surface, 55, the horizontal hook, 56, the second clamping jaw, 57, the stop cap, 571, the cap top, 572, the cap edge. Specific implementation

[0037] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific implementation.

[0038] A kind of bundling machine that can push flat bundling knot head, refer to Figures 3-10 It includes machine shell 1, wire plate 2 being arranged at the front end of machine shell 1, and wire feeding mechanism 3, wire cutting mechanism 4, wire winding mechanism 5 being arranged in machine shell 1.Wire feeding mechanism 3 is responsible for conveying wire to the direction of wire plate 2, and is responsible for pulling back wire to tension subsequently;Wire plate 2 is responsible for guiding wire into a circle;The front and rear wire of the circle meets in wire winding mechanism 5, wire cutting mechanism 4 is responsible for cutting wire after being conveyed to set length and being tensioned;Wire winding mechanism 5 is responsible for tightening the wire after being into a circle.

[0039] Wherein, refer to Figures 4-5 Wire winding mechanism 5 includes fixed clamping part 53, moving sleeve 52 being arranged at the outside of fixed clamping part 53 and being relatively axially movable, drive assembly 51 for driving moving sleeve 52, and first clamping jaw 54 and second clamping jaw 56 being coupled with fixed clamping part 53, the linkage structure of fixed clamping part 53 and moving sleeve 52, first clamping jaw 54 and second clamping jaw 56 and other components is prior art, therefore, no repetition is made.The first clamping space and the second clamping space for the two ends of wire to pass through are formed between the two sides of fixed clamping part 53 and first clamping jaw 54 and second clamping jaw 56, and the wire is sequentially passed through the first clamping space and the second clamping space in the wire-out circle process.

[0040] Referring to Figures 6-7 , the first clamping jaw 54 is provided with a transverse hook 55 at the end thereof, which is used to limit the disengagement of the wire entering the first clamping space; the second clamping jaw 56 is provided with a stop cap 57 at the end thereof, and the wire entering the second clamping space is stopped by contacting the inner wall of the stop cap 57, and the wire feeding mechanism 3 stops feeding the wire. The moving sleeve 52 has a short bending part 521 and a long bending part 522. When the moving sleeve 52 advances to a predetermined position, the two clamping jaws are folded towards the fixed clamping part 53 to a clamping state, and the end of the long bending part 522 is flush with or beyond the inner side of the transverse hook 55 of the first clamping jaw 54, and the end of the short bending part 521 leaves an axial distance for the wire to be accommodated to the inner side of the stop cap 57 of the second clamping jaw 56, as shown in Figure 10 .

[0041] The scheme is designed to have a long and short bending part of the moving sleeve 52, so that the twisted wire coil has a shape of one end being transversely bent and one end being downwardly bent, as shown in Figures 11-16 . The transversely bent end avoids the limitation on the thickness of the cast cement, and reduces the energy consumption of the motor due to further vertical bending. The downwardly bent end enhances the binding stability of the wire coil and reduces the risk of loosening in subsequent construction. Preferably, the axial distance between the end of the long bending part 522 and the inner side of the transverse hook 55 of the first clamping jaw 54 is 0.5-3 mm, which can make the downwardly bent end of the wire coil have a more appropriate bending amplitude. In addition, by installing the stop cap 57 at the end of the second clamping jaw 56, when the wire is coiled, the wire head touches the stop cap 57 and stops. Unlike the traditional structure of stopping the coiled wire head by the wire feeding plate 2, the scheme can make the wire length shorter, and the distance between the outer top surface of the transverse hook 55 of the first clamping jaw 54 and the inner top wall of the cap edge part 572 of the stop cap 57 is only 5-12 mm, which is about the length of the transversely bent wire head of the wire coil, thereby reducing the use of materials and lowering the cost of consumables.

[0042] Specifically, the stop cap 57 includes a cap top part 571 and a cap edge part 572, as shown in Figure 7 , the cap edge part 572 is located above the second clamping jaw 56, and the cap edge part 572 serves to stop the wire head. The cap edge part 572 can be designed to extend in an arc shape beyond the lower end of the short bending part 521, so as to better ensure the reliability of the wire head being bent by the short bending part 521; the cap top part 571 is located in front of the second clamping jaw 56, and the cap top part 571 serves to avoid the wire head from disengaging from the stop cap 57 when coiling.

[0043] The bundling machine in the embodiment is a silk thread back-pull type bundling machine, after the moving sleeve 52 advances to the predetermined position, the second clamping jaw 56 cooperates with the fixed clamping piece 53 to clamp and fix the front of the looped silk thread, the first clamping jaw 54 cooperates with the fixed clamping piece 53 to limit the disengagement of the back of the looped silk thread, and the silk thread can be tightened by the back-pull driving of the silk feeding mechanism 3 in the first clamping space.

[0044] Specifically, see Figure 8 、 Figure 10 , the fixed clamping piece 53 is provided with an avoiding inclined surface 531 on the side corresponding to the first clamping jaw 54, after the moving sleeve 52 advances to the predetermined position, the minimum width between the first clamping jaw 54 and the avoiding inclined surface 531 is greater than the diameter of the silk thread, and the minimum width between the first clamping jaw 54 and the avoiding inclined surface 531 can be designed to be 1.2-2 times the diameter of the silk thread, and the appropriate width not only enables the silk thread to move, but also ensures the smoothness of the silk thread back-pull. The side corresponding to the avoiding inclined surface 531 of the first clamping jaw 54 is provided with a guide arc surface 541, which can further improve the smoothness of the silk thread back-pull and better reduce the abrasion of the silk thread back-pull. In addition, the side close to the silk cutting mechanism 4 of the long bending part 522 is provided with a wire avoiding groove 5221, which also plays a role in avoiding the position during the silk thread back-pull process and the bending process, and protects the silk thread from excessive abrasion.

[0045] The above describes the technical solutions provided by the utility model in detail, the principles and implementation modes of the utility model are described by applying specific examples in the text, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed, and according to the above, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A strapping machine capable of flattening the binding head, comprising a housing, a wire output plate disposed at the front end of the housing, and a wire feeding mechanism, a wire cutting mechanism, and a wire winding mechanism disposed within the housing; the wire winding mechanism comprises a fixed clamping member, a movable sleeve disposed outside the fixed clamping member and movable relative to the axial direction, a driving assembly for driving the movable sleeve, and a first clamping jaw and a second clamping jaw connected to the fixed clamping member; the two sides of the fixed clamping member respectively form a first clamping space and a second clamping space for the two ends of the wire to pass through between the first clamping jaw and the second clamping jaw; Its features are, The first gripper has a horizontal hook at its end, and the second gripper has a stop cap at its end; the movable sleeve has a short bend and a long bend; when the movable sleeve moves forward to a predetermined position, the two grippers retract toward the fixed clamping member to clamp, and the end of the long bend is flush with or extends beyond the inner side of the horizontal hook of the first gripper, and there is an axial distance between the end of the short bend and the inner side of the stop cap of the second gripper.

2. The strapping machine with a flattenable binding head according to claim 1, characterized in that, The stop cap includes a top and a brim, with the brim located above the second gripper and the top located in front of the second gripper.

3. The strapping machine with a flattenable binding head according to claim 2, characterized in that, The distance from the outer top surface of the first gripper hook to the inner top wall of the brim of the second gripper stop cap is 5-12 mm.

4. The strapping machine with a flattenable binding head according to claim 2, characterized in that, The brim extends in an arc shape beyond the lower end of the short bend.

5. The strapping machine with a flattenable binding head according to claim 1, characterized in that, The axial distance by which the end of the long bend extends beyond the inner side of the first gripper hook is 0.5 to 3 mm.

6. The strapping machine with a flattenable binding head according to claim 1, characterized in that, After the movable sleeve moves forward to the predetermined position, the second gripper cooperates with the fixed clamping member to clamp and fix the front end of the coiled yarn, and the first gripper cooperates with the fixed clamping member to restrict the rear end of the coiled yarn from disengaging. The yarn can be tightened in the first clamping space by the pull-back drive of the yarn feeding mechanism.

7. The strapping machine with a flattenable binding head according to claim 6, characterized in that, The fixed clamping member has an avoidance slope on the side corresponding to the first clamping claw. After the moving sleeve moves forward to the predetermined position, the minimum width between the first clamping claw and the avoidance slope is greater than the diameter of the wire.

8. The strapping machine with a flattenable knot head according to claim 7, characterized in that, The first gripper has a guide arc surface on the side corresponding to the avoidance slope.

9. The strapping machine with a flattenable knot head according to claim 7, characterized in that, The minimum width between the first gripper and the clearance ramp is 1.2 to 2 times the diameter of the wire.

10. The strapping machine with a flattenable binding head according to claim 1, characterized in that, A wire-avoiding groove is provided at the end of the long bending section near the wire cutting mechanism.

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