A wire forming device for steel bar binding and use method thereof

Abstract

A wire forming device for steel bar binding and a method for using the same include a wire punching mechanism and a shearing mechanism. The wire punching mechanism includes a wire punching die, a wire punching slider, a push rod and a spring steel sheet. The wire punching die is provided with an inverted U-shaped cavity, a vertical cavity and a wire guide hole. The outer side of the wire punching die is provided with a guide groove. One end of the push rod is connected to a connecting piece. The other end of the push rod passes through the inverted U-shaped cavity and is located directly above the wire punching slider. The wire punching slider is connected to the spring steel sheet through a support. The spring steel sheet is connected to the connecting piece. The support is connected to a cylindrical pin in the guide groove. The shearing mechanism includes a cutter, a lever and a cylinder. The middle part of the lever is hinged to the lever bracket. One end of the lever is connected to the cylinder. The other end of the lever is connected to a cutter guide rod. The cutter guide rod is connected to the cutter after being inserted into the vertical cavity. A spring is mounted on the cutter guide rod. The two ends of the spring respectively resist the cutter guide rod and the top of the wire punching die. This design not only improves the reliability of wire forming, but also reduces the cost of steel bar binding.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar binding, and in particular to a steel bar binding wire forming device and a use method thereof, which are mainly suitable for improving reliability and reducing costs. Background Art

[0002] In construction projects, the amount of work for steel bar wire tying of beams, slabs, columns, and shear walls in the steel bar construction sub-item is very large. At present, the steel bar wire tying work is generally done by workers who wrap the wire around the steel bars to be tied, and then use their hands or pliers to manually rotate the two ends of the wire to twist them into a twist shape to tie a knot, so as to firmly tie the steel bars. This method is not only inefficient and affects the construction period, but also has high labor intensity.

[0003] A Chinese patent, application publication number CN108560924A, application publication date September 21, 2018, discloses a single-wire steel bar binding machine, which uses a binding ring with an opening in the wire twisting mechanism to be set at the intersection of the steel bars, and the wire feeding mechanism is used to feed the wire so that the wire in the binding ring bypasses the intersection of the steel bars, thereby completing the subsequent binding work. A Chinese patent, application publication number CN110469127A, application publication date November 19, 2019, discloses a steel bar binding machine gun head, which uses a guide groove group in the wire guide body to allow the sent steel bar wire to bypass the intersection of the steel bars, thereby completing the subsequent binding work.

[0004] The prior art mostly utilizes arc-shaped guide grooves to first bend the tying wire at the intersection of the steel bars and then twist it to achieve the purpose of tying the steel bars. Since the arc guide groove is not a complete arc, a gap needs to be set to allow the arc guide groove to surround the intersection of the steel bars. This means that the tying wire may deviate from the direction of the arc groove when the wire is bent, resulting in low reliability of the tying wire forming. In addition, the existing steel bar tying device is limited by the tying method, and there will be a certain degree of waste of tying wire, which makes the cost of steel bar tying high. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects and problems of low reliability and high cost in the prior art, and to provide a wire forming device for steel bar binding with high reliability and low cost and a method for using the same.

[0006] To achieve the above objectives, the technical solution of the present invention is: a wire forming device for steel bar binding, comprising a wire punching mechanism and a shearing mechanism;

[0007] The wire punching mechanism comprises a wire punching die, a wire punching slider, a push rod and a spring steel sheet, wherein an inverted U-shaped cavity, a vertical cavity and a wire-binding guide hole are arranged in the wire punching die, wherein the vertical cavity and the wire-binding guide hole are arranged on the side of the inverted U-shaped cavity, and the wire-binding guide hole is arranged below the inverted U-shaped cavity and the vertical cavity, wherein a guide groove is arranged on an outer side surface of the wire punching die, wherein the guide groove comprises a connected straight groove and an arc groove, and a cylinder bracket is arranged on the other outer side surface of the wire punching die, wherein one end of the push rod is connected to a connecting piece, and the other end of the push rod is located directly above the wire punching slider after passing through the inverted U-shaped cavity, wherein the wire punching slider is a cylindrical structure, wherein the wire punching slider is connected to a support, wherein the support is connected to one end of the spring steel sheet, and the other end of the spring steel sheet is connected to a connecting piece, and wherein the support is connected to a cylindrical pin, and the cylindrical pin is installed in the guide groove;

[0008] The shearing mechanism includes a cutter, a lever and a cylinder. The cylinder is installed on a cylinder bracket, and a lever bracket is arranged on the cylinder bracket. The middle part of the lever is hinged to the lever bracket, one end of the lever is connected to the output end of the cylinder, and the other end of the lever is connected to the cutter guide rod. After the cutter guide rod is inserted into the vertical cavity, it is connected to the cutter in the vertical cavity. A No. 1 spring is installed on the cutter guide rod, one end of the No. 1 spring abuts against the boss on the top of the cutter guide rod, and the other end of the No. 1 spring abuts against the top of the wire punching die.

[0009] The wire punching die includes a die body and an end cover, an inverted U-shaped groove is arranged on the inner side surface of the die body, the inverted U-shaped groove and the end cover constitute an inverted U-shaped cavity, a vertical groove is arranged on the inner side surface of the die body at the side of the inverted U-shaped groove, the vertical groove and the end cover constitute a vertical cavity, and a wire binding guide hole is arranged on the inner side surface of the die body at the position below the vertical groove.

[0010] A guide tube is inserted on the top of the punching die, the guide tube is connected with the inverted U-shaped cavity, and the push rod passes through the guide tube and the inverted U-shaped cavity in sequence and is located directly above the punching slide block.

[0011] The outer side surface of the punching die is symmetrically connected to two guide groove brackets, and the guide groove bracket includes a mounting base plate and a support plate arranged thereon, the mounting base plate is connected to the outer side surface of the punching die, and the support plate includes a straight segment and an arc segment, the straight segment is provided with a straight groove, and the arc segment is provided with an arc groove.

[0012] The outer side surface of the punching die is provided with a movable groove, which is connected to the inverted U-shaped cavity. The support is located between the two guide groove brackets. The support is connected to the punching slider after passing through the movable groove. The cylindrical pin is fixed after passing through the guide groove of one guide groove bracket, the support, and the guide groove of another guide groove bracket in sequence.

[0013] A slide groove is arranged on the outer peripheral surface of the punching slide block along its circumferential direction.

[0014] The wire forming device also includes a wire feeding mechanism, which includes two fixed side plates and wire guide grooves arranged in sequence between the two plates along the wire feeding direction, a pair of meshing No. 1 gears, and a pair of meshing No. 2 gears. The outer circumferential surfaces of the No. 1 gear and the No. 2 gear are provided with conveying grooves along their circumferential directions. A stepper motor is installed on the fixed side plate, and the output end of the stepper motor is connected to the driving gear, which is meshed with the No. 1 gear and the No. 2 gear.

[0015] The fixed side plate is installed on the fixed bottom plate, and a movable bottom plate is arranged on the fixed bottom plate. The movable bottom plate is connected to one end of the circular shaft, and the other end of the circular shaft is installed on the fixed bottom plate. A No. 2 spring is mounted on the circular shaft, and the two ends of the No. 2 spring respectively press against the fixed bottom plate and the movable bottom plate. The two sides of the movable bottom plate are connected with movable side plates, and the movable side plates are rotationally connected to a No. 1 gear and a No. 2 gear, and another No. 1 gear and another No. 2 gear are rotationally connected to the fixed side plate.

[0016] The two fixed side plates are respectively connected to the two outer side surfaces of the punching die.

[0017] A method for using a steel bar binding wire forming device, the method comprising the following steps:

[0018] S1, passing the wire through the wire guide hole and the lower part of the inverted U-shaped cavity in sequence and then extending out of the punching die;

[0019] S2. The push rod and the spring steel sheet are controlled to move upward at the same time through the connecting piece, and the spring steel sheet drives the punching slider to move upward. During this process, the punching slider drives the wire tie to move upward along the straight groove through the support. When the push rod leaves the punching die and the wire tie and the punching slider both move to the top of the inverted U-shaped cavity, the push rod and the spring steel sheet are controlled to stop moving at the same time through the connecting piece. At this time, the wire tie is punched into a U-shaped structure;

[0020] S3, control the cylinder to work, the output end of the cylinder moves upward, and transmits the upward movement of the output end of the cylinder to the cutter guide rod through the lever, so that the cutter guide rod moves downward to complete the wire cutting action, after which the output end of the cylinder resets downward, and the cutter guide rod resets upward under the action of the No. 1 spring;

[0021] S4. The push rod and the spring steel sheet are controlled by the connecting piece to move downward at the same time. The spring steel sheet drives the punching slider to move downward. During this process, the punching slider first moves downward along the straight groove through the support to leave the punching die, and then moves downward along the arc groove through the support. At this time, the spring steel sheet undergoes elastic deformation to make the punching slider leave the vertical area where the U-shaped wire is located; at the same time, the push rod pushes the U-shaped wire to move downward until the U-shaped wire is pushed out of the punching die.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In a wire forming device for steel bar binding and a method for using the same, the wire is first passed through the wire guide hole and the lower part of the inverted U-shaped cavity in sequence and then extends out of the wire punching die, and then the push rod and the spring steel sheet are controlled to move upward at the same time by the connecting piece, and the spring steel sheet drives the wire punching slider to move upward to punch the wire into a U-shaped structure, and then the cylinder is controlled to work, the output end of the cylinder moves upward, and the upward movement of the cylinder output end is transmitted to the cutter guide rod through the lever, so that the cutter guide rod moves downward to complete the wire cutting action, and finally, the push rod and the spring steel sheet are controlled to move downward at the same time by the connecting piece, and the spring steel sheet drives the wire punching slider to leave the wire punching die first and then leave the vertical area where the U-shaped wire is located, and at the same time, the push rod pushes the U-shaped wire to move downward until the U-shaped wire is pushed out of the wire punching die; the above design not only makes the deformation of the wire within a certain controllable range to improve the reliability of the wire forming, but also can adjust the wire feeding length and the wire punching distance according to the diameter of the steel bar at the binding point, reduce the use of the steel bar wire, and reduce the cost of steel bar binding. Therefore, the present invention has high reliability and low cost.

[0024] 2. In a wire forming device for steel bar binding and a method for using the same, the wire punching die includes a die body and an end cover, an inverted U-shaped groove is provided on the inner side of the die body, and the inverted U-shaped groove and the end cover form an inverted U-shaped cavity, a vertical groove is provided on the inner side of the die body at the side of the inverted U-shaped groove, and the vertical groove and the end cover form a vertical cavity, and a wire guide hole is provided on the inner side of the die body at the position below the vertical groove. The wire punching die of the above structure can well ensure that wire feeding, wire punching, and wire cutting are completed in the wire punching die; a guide tube is inserted at the top of the wire punching die, and the guide tube is connected to the inverted U-shaped cavity. The push rod passes through the guide tube and the inverted U-shaped cavity in turn and is located directly above the wire punching slider. The guide tube is added to improve the reliability of the push rod movement; a slide groove is provided on the outer peripheral surface of the wire punching slider along its circumferential direction, so that the wire can be reliably punched as the wire punching slider moves upward. Therefore, the reliability of the present invention is high.

[0025] 3. In a wire forming device for steel bar binding and a method for using the same, the outer side of the wire punching die is symmetrically connected with two guide groove brackets, the guide groove bracket includes a mounting base plate and a support plate arranged thereon, the mounting base plate is connected to the outer side of the wire punching die, the support plate includes a straight segment and an arc segment, a straight groove is provided on the straight segment, an arc groove is provided on the arc segment, the straight groove is used for the wire punching slider to punch, the arc groove is used to drive the wire punching slider to leave the vertical area where the wire is located, so that the U-shaped wire that has been punched will not be interfered by the wire punching slider when it falls; the outer side of the wire punching die is provided with a moving groove, the moving groove is connected to the inverted U-shaped cavity, the support is located between the two guide groove brackets, the support is connected to the wire punching slider after passing through the moving groove, the cylindrical pin is fixed after passing through the guide groove of one guide groove bracket, the support, and the guide groove of another guide groove bracket in turn, which not only makes the wire punching slider have a unique motion trajectory, improves the motion reliability, but also makes the motion stability of the wire punching slider good. Therefore, the wire punching reliability of the present invention is high and the wire punching stability is good.

[0026] 4. In a wire forming device for steel bar binding and a method of using the same, the wire feeding mechanism comprises two fixed side plates and a wire guide groove arranged in sequence between the two sides along the wire feeding direction, a pair of meshing No. 1 gears, and a pair of meshing No. 2 gears. The outer circumferential surfaces of the No. 1 gear and the No. 2 gear are provided with a feeding groove along their circumferential direction. A stepper motor is installed on the fixed side plate. The output end of the stepper motor is connected to the driving gear, and the driving gear is meshed with the No. 1 gear and the No. 2 gear. The wire feeding mechanism uses the meshing part of the two pairs of gears to complete the wire feeding work, thereby improving the accuracy and reliability of the wire feeding. The movable bottom plate is connected to one end of the circular shaft. The circular shaft is connected to the movable bottom plate. The other end of the shaft is mounted on the fixed bottom plate, and a No. 2 spring is mounted on the circular shaft. The two ends of the No. 2 spring are respectively against the fixed bottom plate and the movable bottom plate. The two sides of the movable bottom plate are connected with movable side plates. The movable side plates are rotatably connected with a No. 1 gear and a No. 2 gear. Another No. 1 gear and another No. 2 gear are rotatably connected with the fixed side plates. The above design ensures that the wire is not in hard contact with the two gears when passing through the two meshing points, thereby preventing the gears from damaging the uneven parts of the wire. The two fixed side plates are respectively connected with the two outer sides of the wire punching die, which not only makes the installation and disassembly of the wire punching mechanism and the wire feeding mechanism simple, but also improves the reliability of wire feeding. Therefore, the present invention has high wire feeding accuracy, high wire feeding reliability, and is easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a packaging diagram of the present invention.

[0029] Figure 3 It is a three-dimensional structural schematic diagram of the punching mechanism and the shearing mechanism from one viewing angle in the present invention.

[0030] Figure 4 It is a three-dimensional structural schematic diagram of the punching mechanism and the shearing mechanism from another perspective in the present invention.

[0031] Figure 5 It is a side view of the punching mechanism and the shearing mechanism in the present invention.

[0032] Figure 6 It is a cross-sectional view of the punching mechanism and the shearing mechanism in the present invention.

[0033] Figure 7 It is a structural schematic diagram of the wire feeding mechanism in the present invention.

[0034] Figure 8 It is a schematic diagram of the internal structure of the wire feeding mechanism in the present invention.

[0035] Fig. 9 It is a schematic diagram of the structure of the first gear or the second gear in the present invention.

[0036] Fig.10 It is a schematic diagram of the wire feeding mechanism in the present invention.

[0037] Fig.11 It is a schematic diagram of the assembly structure of the fixed bottom plate and the movable bottom plate in the present invention.

[0038] Fig.12 It is a schematic diagram of the wire feeding mechanism, wire punching mechanism and shearing mechanism in the present invention.

[0039] Fig.13 It is a simplified flowchart of the present invention.

[0040] In the figure: punching die 1, die body 101, end cover 102, inverted U-shaped groove 103, vertical groove 104, wire guide hole 105, wire guide hole 105, movable groove 106, punching slider 2, slide groove 201, push rod 3, spring steel sheet 4, cylinder bracket 5, connector 6, support 7, cylindrical pin 8, cutter 9, lever 10, cylinder 11, lever bracket 12, cutter guide rod 13, No. 1 spring 14, guide tube 15, guide groove bracket 16, mounting base plate 161, support plate 162, guide groove 163, fixed side plate 17, wire guide groove 18, No. 1 gear 19, No. 2 gear 20, stepping motor 21, driving gear 22, fixed base plate 23, movable base plate 24, round shaft 25, No. 2 spring 26, movable side plate 27, wire 28, steel bar intersection 29, screwing mechanism 30. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0042] See also Figures 1 to 13, a wire forming device for steel bar binding, comprising a wire punching mechanism and a shearing mechanism;

[0043] The punching mechanism includes a punching die 1, a punching slider 2, a push rod 3 and a spring steel sheet 4. The punching die 1 is provided with an inverted U-shaped cavity, a vertical cavity and a wire-binding guide hole 105. The vertical cavity and the wire-binding guide hole 105 are both arranged on the side of the inverted U-shaped cavity, and the wire-binding guide hole 105 is arranged below the inverted U-shaped cavity and the vertical cavity. A guide groove 163 is provided on an outer side surface of the punching die 1. The guide groove 163 includes a connected straight groove and an arc groove. A cylinder bracket 5 is provided on the other outer side surface of the punching die 1. One end of the push rod 3 is connected to a connecting piece 6. The other end of the push rod 3 passes through the inverted U-shaped cavity and is located directly above the punching slider 2. The punching slider 2 is a cylindrical structure. The punching slider 2 is connected to a support 7. The support 7 is connected to one end of the spring steel sheet 4. The other end of the spring steel sheet 4 is connected to the connecting piece 6. The support 7 is connected to a cylindrical pin 8, and the cylindrical pin 8 is installed in the guide groove 163.

[0044] The shearing mechanism includes a cutter 9, a lever 10 and a cylinder 11. The cylinder 11 is installed on a cylinder bracket 5. A lever bracket 12 is provided on the cylinder bracket 5. The middle part of the lever 10 is hinged to the lever bracket 12. One end of the lever 10 is connected to the output end of the cylinder 11, and the other end of the lever 10 is connected to a cutter guide rod 13. After the cutter guide rod 13 is inserted into the vertical cavity, it is connected to the cutter 9 in the vertical cavity. A No. 1 spring 14 is mounted on the cutter guide rod 13. One end of the No. 1 spring 14 abuts against the boss on the top of the cutter guide rod 13, and the other end of the No. 1 spring 14 abuts against the top of the wire punching die 1.

[0045] The wire punching die 1 includes a die body 101 and an end cover 102. An inverted U-shaped groove 103 is provided on the inner side surface of the die body 101. The inverted U-shaped groove 103 and the end cover 102 constitute an inverted U-shaped cavity. A vertical groove 104 is provided on the inner side surface of the die body 101 at the side of the inverted U-shaped groove 103. The vertical groove 104 and the end cover 102 constitute a vertical cavity. A wire guide hole 105 is provided on the inner side surface of the die body 101 at the position below the vertical groove 104.

[0046] A guide tube 15 is inserted at the top of the punching die 1 , and the guide tube 15 is connected to the inverted U-shaped cavity. The push rod 3 passes through the guide tube 15 and the inverted U-shaped cavity in sequence and is located directly above the punching slide 2 .

[0047] The outer side surface of the punching die 1 is symmetrically connected to two guide groove brackets 16, and the guide groove bracket 16 includes a mounting base plate 161 and a support plate 162 arranged thereon, and the mounting base plate 161 is connected to the outer side surface of the punching die 1, and the support plate 162 includes a straight segment and an arc segment, and a straight groove is opened on the straight segment, and an arc groove is opened on the arc segment.

[0048] The outer side surface of the punching die 1 is provided with a movable groove 106, which is connected to the inverted U-shaped cavity. The support 7 is located between the two guide groove brackets 16. The support 7 passes through the movable groove 106 and is connected to the punching slider 2. The cylindrical pin 8 passes through the guide groove 163 of one guide groove bracket 16, the support 7, and the guide groove 163 of another guide groove bracket 16 in sequence and is then fixed.

[0049] A slide groove 201 is arranged on the outer peripheral surface of the punching slide block 2 along its circumferential direction.

[0050] The wire forming device also includes a wire feeding mechanism, which includes two fixed side plates 17 and a wire guide groove 18 arranged in sequence between the two sides along the wire feeding direction, a pair of meshing No. 1 gears 19, and a pair of meshing No. 2 gears 20. The outer circumferential surfaces of the No. 1 gear 19 and the No. 2 gear 20 are provided with conveying grooves along their circumferential directions. A stepper motor 21 is installed on the fixed side plate 17, and the output end of the stepper motor 21 is connected to a driving gear 22, which is meshed with the No. 1 gear 19 and the No. 2 gear 20.

[0051] The fixed side plate 17 is installed on the fixed bottom plate 23, and a movable bottom plate 24 is arranged on the fixed bottom plate 23. The movable bottom plate 24 is connected to one end of a circular shaft 25, and the other end of the circular shaft 25 is installed on the fixed bottom plate 23. A No. 2 spring 26 is mounted on the circular shaft 25, and the two ends of the No. 2 spring 26 respectively press against the fixed bottom plate 23 and the movable bottom plate 24. Both sides of the movable bottom plate 24 are connected with movable side plates 27. The movable side plates 27 are rotatably connected to a No. 1 gear 19 and a No. 2 gear 20, and another No. 1 gear 19 and another No. 2 gear 20 are rotatably connected to the fixed side plate 17.

[0052] The two fixed side plates 17 are respectively connected to the two outer side surfaces of the punching die 1 .

[0053] A method for using a steel bar binding wire forming device, the method comprising the following steps:

[0054] S1, passing the wire 28 through the wire guide hole 105 and the lower part of the inverted U-shaped cavity in sequence and then extending out of the punching die 1;

[0055] S2. The push rod 3 and the spring steel sheet 4 are controlled to move upward at the same time through the connecting piece 6, and the spring steel sheet 4 drives the punching slide block 2 to move upward. During this process, the punching slide block 2 drives the wire 28 to move upward along the linear groove through the support 7. When the push rod 3 leaves the punching die 1 and the wire 28 and the punching slide block 2 move to the top of the inverted U-shaped cavity, the push rod 3 and the spring steel sheet 4 are controlled to stop moving at the same time through the connecting piece 6. At this time, the wire 28 is punched into a U-shaped structure;

[0056] S3, control the cylinder 11 to work, the output end of the cylinder 11 moves upward, and transmits the upward movement of the output end of the cylinder 11 to the cutter guide rod 13 through the lever 10, so that the cutter guide rod 13 moves downward to complete the wire cutting action, after which the output end of the cylinder 11 is reset downward, and the cutter guide rod 13 is reset upward under the action of the No. 1 spring 14;

[0057] S4. Control the push rod 3 and the spring steel sheet 4 to move downward at the same time through the connecting piece 6. The spring steel sheet 4 drives the punching slider 2 to move downward. During this process, the punching slider 2 first moves downward along the straight groove through the support 7 to leave the punching die 1, and then moves downward along the arc groove through the support 7. At this time, the spring steel sheet 4 undergoes elastic deformation to make the punching slider 2 leave the vertical area where the U-shaped wire is located; at the same time, the push rod 3 pushes the U-shaped wire to move downward until the U-shaped wire is pushed out of the punching die 1.

[0058] The principle of the present invention is described as follows:

[0059] In this design, the wire is transformed into a U-shaped structure by punching the wire slider in the wire punching die, and the push rod is used to push the U-shaped wire out of the wire punching die after the wire is punched into the U-shaped structure. The lever is mainly used to transmit the movement of the cylinder to the cutter, so that the cutter moves in the vertical direction to achieve the purpose of shearing the wire.

[0060] The upper half of the guide groove is a straight track, and the lower half is an arc track. The straight groove in the upper half is used for the punching of the wire punching slider, and the arc groove in the lower half is used to drive the wire punching slider to leave the vertical area where the wire is located, so that the U-shaped wire that has been punched is not interfered by the wire punching slider when it falls, and the arc groove limits the two cylindrical pins at the same time, so that the wire punching slider has a unique track, which can effectively control the position relationship with the wire punching die during the entire movement process. Since part of the motion track of the wire punching slider is arc-shaped, the movement of the wire punching slider is pulled by the spring steel sheet. The good elasticity and strength of the spring steel sheet can not only ensure reliable traction, but also adapt to the arc motion track of the wire punching slider with a certain degree of elastic deformation.

[0061] Embodiment 1:

[0062] See also Figures 1 to 13, a wire forming device for steel bar binding, including a wire punching mechanism and a shearing mechanism; the wire punching mechanism includes a wire punching die 1, a wire punching slider 2, a push rod 3 and a spring steel sheet 4, the wire punching die 1 is provided with an inverted U-shaped cavity, a vertical cavity and a wire guide hole 105, the vertical cavity and the wire guide hole 105 are both arranged on the side of the inverted U-shaped cavity, and the wire guide hole 105 is arranged below the inverted U-shaped cavity and the vertical cavity, an outer side surface of the wire punching die 1 is provided with a guide groove 163, the guide groove 163 includes a connected straight groove and an arc groove, the other outer side surface of the wire punching die 1 is provided with a cylinder bracket 5, one end of the push rod 3 is connected to a connecting piece 6, and the other end of the push rod 3 passes through the inverted U-shaped cavity and is located directly above the wire punching slider 2, the wire punching slider 2 is a cylindrical structure, the wire punching slider 2 is connected to a support 7, and the support 7 is connected to the spring steel sheet 4 One end is connected, the other end of the spring steel sheet 4 is connected to the connecting piece 6, the support 7 is connected to the cylindrical pin 8, and the cylindrical pin 8 is installed in the guide groove 163; a slide groove 201 is arranged on the outer circumferential surface of the punching slide block 2 along its circumferential direction; the shearing mechanism includes a cutter 9, a lever 10 and a cylinder 11, the cylinder 11 is installed on the cylinder bracket 5, and a lever bracket 12 is arranged on the cylinder bracket 5, the middle part of the lever 10 is hinged to the lever bracket 12, one end of the lever 10 is connected to the output end of the cylinder 11, and the other end of the lever 10 is connected to the cutter guide rod 13, and the cutter guide rod 13 is connected to the cutter 9 in the vertical cavity after being inserted into the vertical cavity, and a No. 1 spring 14 is installed on the cutter guide rod 13, one end of the No. 1 spring 14 is against the boss at the top of the cutter guide rod 13, and the other end of the No. 1 spring 14 is against the top of the punching die 1.

[0063] According to the above scheme, a method for using a steel bar binding wire forming device comprises the following steps:

[0064] S1, passing the wire 28 through the wire guide hole 105 and the lower part of the inverted U-shaped cavity in sequence and then extending out of the punching die 1;

[0065] S2. The push rod 3 and the spring steel sheet 4 are controlled to move upward at the same time through the connecting piece 6, and the spring steel sheet 4 drives the punching slide block 2 to move upward. During this process, the punching slide block 2 drives the wire 28 to move upward along the linear groove through the support 7. When the push rod 3 leaves the punching die 1 and the wire 28 and the punching slide block 2 move to the top of the inverted U-shaped cavity, the push rod 3 and the spring steel sheet 4 are controlled to stop moving at the same time through the connecting piece 6. At this time, the wire 28 is punched into a U-shaped structure;

[0066] S3, control the cylinder 11 to work, the output end of the cylinder 11 moves upward, and transmits the upward movement of the output end of the cylinder 11 to the cutter guide rod 13 through the lever 10, so that the cutter guide rod 13 moves downward to complete the wire cutting action, after which the output end of the cylinder 11 is reset downward, and the cutter guide rod 13 is reset upward under the action of the No. 1 spring 14;

[0067] S4. Control the push rod 3 and the spring steel sheet 4 to move downward at the same time through the connecting piece 6. The spring steel sheet 4 drives the punching slider 2 to move downward. During this process, the punching slider 2 first moves downward along the straight groove through the support 7 to leave the punching die 1, and then moves downward along the arc groove through the support 7. At this time, the spring steel sheet 4 undergoes elastic deformation to make the punching slider 2 leave the vertical area where the U-shaped wire is located; at the same time, the push rod 3 pushes the U-shaped wire to move downward until the U-shaped wire is pushed out of the punching die 1.

[0068] Embodiment 2:

[0069] The basic content is the same as that of Example 1, except that:

[0070] The wire punching die 1 includes a die body 101 and an end cover 102, an inverted U-shaped groove 103 is provided on the inner side surface of the die body 101, the inverted U-shaped groove 103 and the end cover 102 constitute an inverted U-shaped cavity, a vertical groove 104 is provided on the inner side surface of the die body 101 at the side of the inverted U-shaped groove 103, the vertical groove 104 and the end cover 102 constitute a vertical cavity, and a wire binding guide hole 105 is provided on the inner side surface of the die body 101 at the position below the vertical groove 104; a guide tube 15 is inserted at the top of the wire punching die 1, the guide tube 15 is connected to the inverted U-shaped cavity, and the push rod 3 passes through the guide tube 15 and the inverted U-shaped cavity in sequence and is located directly above the wire punching slider 2.

[0071] Embodiment 3:

[0072] The basic content is the same as that of Example 1, except that:

[0073] The outer side surface of the punching die 1 is symmetrically connected to two guide groove brackets 16, and the guide groove bracket 16 includes a mounting base plate 161 and a support plate 162 arranged thereon, and the mounting base plate 161 is connected to the outer side surface of the punching die 1, and the support plate 162 includes a straight segment and an arc segment, and the straight segment is provided with a straight groove, and the arc segment is provided with an arc groove; the outer side surface of the punching die 1 is provided with a movable groove 106, and the movable groove 106 is connected to the inverted U-shaped cavity, and the support 7 is located between the two guide groove brackets 16, and the support 7 is connected to the punching slide 2 after passing through the movable groove 106, and the cylindrical pin 8 is fixed after passing through the guide groove 163 of one guide groove bracket 16, the support 7, and the guide groove 163 of another guide groove bracket 16 in sequence.

[0074] Embodiment 4:

[0075] The basic content is the same as that of Example 1, except that:

[0076] The wire forming device also includes a wire feeding mechanism, which includes two fixed side plates 17 and a wire guide groove 18 arranged in sequence between the two sides along the wire feeding direction, a pair of meshing No. 1 gears 19, and a pair of meshing No. 2 gears 20. The outer circumferential surfaces of the No. 1 gear 19 and the No. 2 gear 20 are provided with a conveying groove along their circumferential direction. A stepper motor 21 is installed on the fixed side plate 17, and the output end of the stepper motor 21 is connected to the driving gear 22, and the driving gear 22 is meshed with the No. 1 gear 19 and the No. 2 gear 20; the fixed side plate 17 is installed on the fixed bottom plate 23, and the fixed bottom plate A movable bottom plate 24 is provided on 23, and the movable bottom plate 24 is connected to one end of a circular shaft 25, and the other end of the circular shaft 25 is installed on the fixed bottom plate 23. A No. 2 spring 26 is mounted on the circular shaft 25, and the two ends of the No. 2 spring 26 respectively press against the fixed bottom plate 23 and the movable bottom plate 24, and movable side plates 27 are connected to both sides of the movable bottom plate 24, and the movable side plates 27 are rotatably connected to a No. 1 gear 19 and a No. 2 gear 20, and another No. 1 gear 19 and another No. 2 gear 20 are rotatably connected to the fixed side plates 17; the two fixed side plates 17 are respectively connected to the two outer side surfaces of the punching die 1.

Claims

1. A wire forming device for steel bar binding, characterized in that: Including punching mechanism and shearing mechanism; The wire punching mechanism comprises a wire punching die (1), a wire punching slider (2), a push rod (3) and a spring steel sheet (4); an inverted U-shaped cavity, a vertical cavity and a wire-binding guide hole (105) are arranged in the wire punching die (1); the vertical cavity and the wire-binding guide hole (105) are arranged on the side of the inverted U-shaped cavity, and the wire-binding guide hole (105) is arranged below the inverted U-shaped cavity and the vertical cavity; a guide groove (163) is arranged on an outer side surface of the wire punching die (1); the guide groove (163) comprises a connected straight groove and an arc groove; the wire punching die (1) A cylinder bracket (5) is provided on the other outer side surface, one end of the push rod (3) is connected to the connecting piece (6), the other end of the push rod (3) passes through the inverted U-shaped cavity and is located directly above the punching slider (2), the punching slider (2) is a cylindrical structure, the punching slider (2) is connected to the support (7), the support (7) is connected to one end of the spring steel sheet (4), the other end of the spring steel sheet (4) is connected to the connecting piece (6), the support (7) is connected to the cylindrical pin (8), and the cylindrical pin (8) is installed in the guide groove (163); The shearing mechanism comprises a cutter (9), a lever (10) and a cylinder (11). The cylinder (11) is mounted on a cylinder bracket (5). A lever bracket (12) is arranged on the cylinder bracket (5). The middle part of the lever (10) is hinged to the lever bracket (12). One end of the lever (10) is connected to the output end of the cylinder (11). The other end of the lever (10) is connected to a cutter guide rod (13). After the cutter guide rod (13) is inserted into the vertical cavity, it is connected to the cutter (9) in the vertical cavity. A No. 1 spring (14) is mounted on the cutter guide rod (13). One end of the No. 1 spring (14) abuts against a boss at the top of the cutter guide rod (13). The other end of the No. 1 spring (14) abuts against the top of the wire punching die (1).

2. A steel bar binding wire forming device according to claim 1, characterized in that: The wire punching die (1) comprises a die body (101) and an end cover (102); an inverted U-shaped groove (103) is arranged on the inner side surface of the die body (101); the inverted U-shaped groove (103) and the end cover (102) form an inverted U-shaped cavity; a vertical groove (104) is arranged on the inner side surface of the die body (101) at a position on the side of the inverted U-shaped groove (103); the vertical groove (104) and the end cover (102) form a vertical cavity; and a wire binding guide hole (105) is arranged on the inner side surface of the die body (101) at a position below the vertical groove (104).

3. A steel bar binding wire forming device according to claim 1, characterized in that: A guide tube (15) is inserted at the top of the punching die (1), the guide tube (15) is connected to the inverted U-shaped cavity, and the push rod (3) passes through the guide tube (15) and the inverted U-shaped cavity in sequence and is located directly above the punching slide block (2).

4. A steel bar binding wire forming device according to claim 1, characterized in that: The outer side surface of the punching die (1) is symmetrically connected to two guide groove brackets (16), the guide groove bracket (16) comprising a mounting base plate (161) and a support plate (162) arranged thereon, the mounting base plate (161) is connected to the outer side surface of the punching die (1), the support plate (162) comprises a straight segment and an arc segment, the straight segment is provided with a straight groove, and the arc segment is provided with an arc groove.

5. A steel bar binding wire forming device according to claim 4, characterized in that: The outer side surface of the punching die (1) is provided with a movable groove (106), the movable groove (106) is communicated with the inverted U-shaped cavity, the support (7) is located between the two guide groove brackets (16), the support (7) passes through the movable groove (106) and is connected to the punching slide block (2), and the cylindrical pin (8) passes through the guide groove (163) of one guide groove bracket (16), the support (7), and the guide groove (163) of another guide groove bracket (16) in sequence and is then fixed.

6. A steel bar binding wire forming device according to claim 1, characterized in that: A sliding groove (201) is provided on the outer peripheral surface of the punching slide block (2) along its circumferential direction.

7. A steel bar binding wire forming device according to any one of claims 1 to 6, characterized in that: The wire forming device also includes a wire feeding mechanism, which includes two fixed side plates (17) and a wire guide groove (18) arranged in sequence between the two sides along the wire feeding direction, a pair of meshing first gears (19), and a pair of meshing second gears (20). The outer circumferential surfaces of the first gear (19) and the second gear (20) are provided with a feeding groove along their circumferential direction. A stepping motor (21) is installed on the fixed side plate (17). The output end of the stepping motor (21) is connected to a driving gear (22), and the driving gear (22) is meshed with the first gear (19) and the second gear (20).

8. A steel bar binding wire forming device according to claim 7, characterized in that: The fixed side plate (17) is mounted on the fixed bottom plate (23), a movable bottom plate (24) is arranged on the fixed bottom plate (23), the movable bottom plate (24) is connected to one end of a circular shaft (25), the other end of the circular shaft (25) is mounted on the fixed bottom plate (23), a No. 2 spring (26) is sleeved on the circular shaft (25), the two ends of the No. 2 spring (26) respectively abut against the fixed bottom plate (23) and the movable bottom plate (24), the two sides of the movable bottom plate (24) are connected with movable side plates (27), the movable side plates (27) are rotationally connected to a No. 1 gear (19) and a No. 2 gear (20), and another No. 1 gear (19) and another No. 2 gear (20) are rotationally connected to the fixed side plate (17).

9. A steel bar binding wire forming device according to claim 7, characterized in that: The two fixed side plates (17) are respectively connected to the two outer side surfaces of the punching die (1).

10. A method for using the steel bar binding wire forming device according to claim 1, characterized in that: The method of use comprises the following steps: S1, passing the wire (28) through the wire guide hole (105) and the lower part of the inverted U-shaped cavity in sequence and then extending out of the wire punching die (1); S2. The push rod (3) and the spring steel sheet (4) are controlled to move upward at the same time by the connecting piece (6), and the spring steel sheet (4) drives the punching slider (2) to move upward. During this process, the punching slider (2) drives the wire (28) to move upward along the straight groove through the support (7). When the push rod (3) leaves the punching die (1) and the wire (28) and the punching slider (2) both move to the top of the inverted U-shaped cavity, the push rod (3) and the spring steel sheet (4) are controlled to stop moving at the same time by the connecting piece (6). At this time, the wire (28) is punched into a U-shaped structure. S3, the air cylinder (11) is controlled to work, the output end of the air cylinder (11) moves upward, and the upward movement of the output end of the air cylinder (11) is transmitted to the cutter guide rod (13) through the lever (10), so that the cutter guide rod (13) moves downward, completing the wire cutting action, after which the output end of the air cylinder (11) is reset downward, and the cutter guide rod (13) is reset upward under the action of the first spring (14); S4. The push rod (3) and the spring steel sheet (4) are controlled to move downward simultaneously through the connecting piece (6), and the spring steel sheet (4) drives the punching slider (2) to move downward. During this process, the punching slider (2) first moves downward along the straight groove through the support (7) to leave the punching die (1), and then moves downward along the arc groove through the support (7). At this time, the spring steel sheet (4) undergoes elastic deformation to make the punching slider (2) leave the vertical area where the U-shaped wire is located; at the same time, the push rod (3) pushes the U-shaped wire to move downward until the U-shaped wire is pushed out of the punching die (1).

Images