Secondary bending device of covering net hook welding machine

Abstract

The utility model belongs to covering net hook welding equipment, and particularly relates to a secondary bending device of a covering net hook welding machine. Comprising a main rack and a movable frame forming a conveying channel, stand columns are symmetrically arranged and slidably assembled on the movable frame and the main rack located on the two sides of the conveying channel behind a primary bending station, and the stand columns are driven by a power source with a linear driving function to reciprocate in the direction perpendicular to the conveying channel. And pressing plates capable of acting on the exposed bent part of the steel wire formed at the primary bending station are longitudinally arranged on the inner side of the stand column facing one side of the conveying channel at intervals. The steel wire bending device effectively overcomes the defect that the exposed end of a steel wire is difficult to bend in place through one-time bending operation. The steel wire bending machine has the advantages of being simple in product structure, low in long-term operation failure rate, capable of achieving standardized production, good in bending effect on the exposed ends of the bent steel wires which are not bent in place, capable of being suitable for bending the exposed steel wires of main reinforcement nets with different thicknesses and the like.

Description

Technical Field

[0001] This utility model relates to mesh covering hook welding equipment, specifically to the secondary bending device of the mesh covering hook welding machine. Background Technology

[0002] The main structure of the composite steel mesh insulated exterior wall panel consists of main reinforcing meshes on both sides of a graphite polystyrene board, with secondary reinforcing meshes spaced apart on the outside of the main reinforcing meshes to form a frame. The two ends of the steel wires pass through the graphite polystyrene board and are welded to the main reinforcing meshes and secondary reinforcing meshes respectively. The steel wire mesh is attached to the surface of the secondary reinforcing meshes. The only difference between the composite steel mesh insulated interior wall panel and the composite steel mesh insulated exterior wall panel is that the latter does not contain graphite polystyrene board. Because of the impact of concrete during use, the steel wires are prone to detaching from the secondary and primary reinforcing meshes. Therefore, bending the exposed ends of the steel wires on the mesh surface is an essential structural feature of existing products. This structure maintains product stability even after the steel wires detach from the secondary and primary reinforcing meshes. Currently, there is no dedicated equipment to perform this bending operation, which is mainly done manually using simple non-standard tools. The problems with this operation are: firstly, the standardization and efficiency of manual operation are low; secondly, the tools can easily damage the secondary and primary reinforcing meshes; thirdly, labor costs are high; and fourthly, incomplete bending can cause the wires to become entangled during product stacking and transportation, leading to inconvenience. If automated production of composite steel mesh insulation wall panels is adopted, bending the exposed ends of the welded steel wires is an essential process and key technology for completing the above operation. The applicant's research found that although the exposed ends of the steel wires can be bent in one bending operation, achieving proper bending and securing the secondary reinforcing mesh is quite difficult.

[0003] The applicant has retrieved the following existing patent documents:

[0004] Patent document CN213564459U discloses a vertical steel wire mesh insulation board forming machine. The welding of the inserted wires to the main reinforcing mesh is achieved through a wire insertion device and a welding device. However, the welding device uses existing technology, and the exposed ends of the welded steel wires cannot be bent by the equipment. Therefore, if the steel wires detach from the secondary and main reinforcing meshes, the wires will fall off. The applicant has not found any documents identical or similar to this utility model in domestic patent databases. Summary of the Invention

[0005] The purpose of this utility model is to provide a secondary bending device for a mesh hook welding machine, which can effectively bend the exposed bending end of the welded steel wire on the secondary reinforcing mesh, thereby effectively ensuring that the exposed end of the steel wire that has undergone one bending operation but is not bent to the required degree is bent in place, and tightly grips the outer secondary reinforcing mesh, so as to avoid the risk of the steel wire falling off once it is detached from the main reinforcing mesh and the secondary reinforcing mesh.

[0006] The overall technical concept of this utility model is:

[0007] The secondary bending device of the wire mesh hook welding machine includes a main frame and a movable frame set on the main frame and forming a conveying channel therewith. The columns are symmetrically arranged and slidably assembled on the movable frame and the main frame located on both sides of the conveying channel behind the primary bending station. The columns reciprocate in a direction perpendicular to the conveying channel under the drive of a power source with linear drive function. The inner side of the column facing the conveying channel is provided with pressure plates at intervals along the longitudinal direction, which can act on the exposed bent part of the steel wire formed in the primary bending station.

[0008] The applicant needs to clarify that the bending operation is achieved by a power source driving a pressure plate on the column to bend the exposed ends of the secondary reinforcing mesh and mesh panels on the conveying channel that have already undergone the first bending but were not fully bent. Under the action of the pressure plate, the bending is completed and the outer secondary reinforcing mesh and mesh panels are tightly held together, preventing the steel wires from falling off if they become detached from the main and secondary reinforcing mesh. The power source can be a cylinder, a linear motor, or a transmission mechanism driven by a rotary motor that can convert rotation into linear motion, or a combination thereof, all of which do not depart from the essence of this utility model.

[0009] Other specific technical solutions of this utility model include:

[0010] The adjustable distance between the movable frame and the main frame not only allows the conveying channel to accommodate main reinforcing mesh of different widths, but also meets the technical requirements for precise positioning during welding wire and bending operations, enabling continuous production with accurate positioning of the welding and bending of steel wire and secondary reinforcing mesh. To achieve the adjustment of the distance between the movable frame and the main frame, the preferred technical means is that the movable frame and the main frame reciprocate along a direction perpendicular to the conveying direction of the mesh frame via a drive mechanism. To reduce the load and achieve synchronized operation, the drive mechanism can use multiple sets of lead screw feed mechanisms located between the movable frame and the main frame, synchronized through a sprocket and chain drive pair. Furthermore, to ensure flexible movement when adjusting the distance between the movable frame and the main frame, a more preferred technical means is that the bottom of the movable frame is assembled to the main frame along a direction perpendicular to the conveying channel via guide rails and guide wheels.

[0011] To achieve flexible coordination between the column, the movable frame, and the main frame, and to ensure synchronized vertical movement of the column, while also satisfying the synchronicity of the bending action of multiple pressure plates on the exposed end of the steel wire, thus ensuring product quality and effectively achieving standardized production, the preferred technical means is that the upper and lower ends of the column are slidably assembled with guide rails set on the movable frame and the main frame through upper and lower sliding sleeves, respectively.

[0012] To facilitate the installation of the guide rail, the preferred technical approach is to connect the guide rail to the movable frame or main frame via an upper fixed seat and a lower fixed seat.

[0013] To facilitate the adjustment of the pressure plate's position on the column, and to meet the processing needs of main reinforcement mesh with different thicknesses or the need to adjust the different curvatures of the exposed ends of the steel wires, a preferred technical implementation is that the pressure plate is connected to the column via a spacing adjustment mechanism. A more preferred technical implementation is that the spacing adjustment mechanism is a lead screw and nut mechanism or a parallelogram mechanism.

[0014] To facilitate the installation of the linear transmission mechanism, a more preferred technical approach is to use a lead screw and nut mechanism for the spacing adjustment mechanism. The spacing adjustment mechanism consists of a lead screw and a nut that fits in the middle and is fixed to the column.

[0015] The technological advancements achieved by this utility model are as follows:

[0016] 1. This utility model adopts a column that slides with the movable frame and the main frame. The column is driven to reciprocate through a power source with linear drive function. The structural design has the following advantages: First, the column structure, which serves as a structural support, is stable, providing a stable structural guarantee for the accuracy of the pressure plate's bending action; second, the column reciprocating motion is reliable and flexible; third, the column reciprocating motion is stable and easy to operate for a long time; and fourth, the structure is simple and has a low failure rate.

[0017] 2. This utility model uses a pressure plate to perform the bending operation on the exposed end of the bent steel wire, and simultaneously uses a linear transmission mechanism to assemble it with the column. First, the pressure plate can form a good interaction with the exposed end of the steel wire that has a certain degree of bending but is not fully bent, resulting in a good bending effect. Second, the pressure plate has a simple structure, high strength, and can remain unchanged for a long time, which is conducive to the standardized production of products and a high yield. Third, it can adapt to the main reinforcement mesh of different thicknesses, and has a wide range of applications. Fourth, the linear mechanism can be adjusted to meet the needs of different bending degrees, and at the same time, it can compensate for the defects of unequal spacing between the pressure plates and the main reinforcement mesh caused by the deformation of the column, main reinforcement mesh, and frame, thus reducing the maintenance rate of the equipment.

[0018] 3. The adjustable spacing between the movable frame and the main frame is designed to facilitate the conveying of mesh frames with different thicknesses. In addition to the secondary bending device, the movable frame and the main frame can also be equipped with traction, welding wire, and primary bending devices. Therefore, this structural design ensures the precise adjustment of the workstation during each process. Attached Figure Description

[0019] The accompanying drawings of this utility model are as follows:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 yes Figure 1 A bottom view.

[0022] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure.

[0023] Figure 4 This is a schematic diagram of the working state of the present invention applied to the netting bending machine.

[0024] The reference numerals in the attached figures are as follows:

[0025] 1. Guide rail; 2. Upper sliding sleeve; 3. Lower sliding sleeve; 4. Upper fixed seat; 5. Lower fixed seat; 6. Column; 7. Nut; 8. Lead screw; 9. Pressure plate; 10. Cylinder; 11. Main frame; 12. Movable frame; 13. Main reinforcement mesh; 14. Secondary reinforcement mesh; 15. Steel wire. Detailed Implementation

[0026] The embodiments of this utility model are further described below with reference to the accompanying drawings, but this is not intended to limit the utility model. The scope of protection of this utility model is determined by the contents of the claims. Any equivalent technical means substitutions made based on the description do not depart from the scope of protection of this utility model. The terms "both sides," "longitudinal," "upper end," and "lower end" in this utility model are descriptions based on the orientation in the accompanying drawings and should not be construed as limiting the utility model.

[0027] The overall structure of this embodiment is shown in the figure. The secondary bending device of the mesh hook welding machine includes a main frame 11 and a movable frame 12 disposed on the main frame 11 and forming a conveying channel with it. Columns 6 are symmetrically arranged and slidably assembled on the movable frame 12 and the main frame 11 located on both sides of the conveying channel behind the primary bending station. The columns 6 reciprocate in a direction perpendicular to the conveying channel under the drive of the cylinder 10. The inner side of the column 6 facing the conveying channel is provided with pressure plates 9 at longitudinal intervals that can act on the exposed bent parts of the steel wire 15 formed in the primary bending station. The exposed bent ends of the steel wire 15 are formed by bending them after welding with the main reinforcing mesh 13 and the secondary reinforcing mesh 14 in the primary bending station. To avoid too many lines, the mesh is not shown in the figure.

[0028] The movable frame 12 and the main frame 11 are reciprocated along the direction perpendicular to the main rib mesh conveying direction by multiple sets of lead screw and nut mechanisms, and the synchronous operation of each lead screw and nut mechanism is achieved by a sprocket and chain drive pair. Since the above structure is prior art, it is not shown in the figure. The bottom of the movable frame 12 is assembled with the main frame 11 along the direction perpendicular to the conveying channel by guide rails and guide wheels.

[0029] The upper and lower ends of the column 6 are slidably assembled with guide rails 1 set on the movable frame 12 and the main frame 11 via the upper sliding sleeve 2 and the lower sliding sleeve 3, respectively.

[0030] The guide rail 1 is connected to the movable frame 12 or the main frame 11 via the upper fixed seat 4 and the lower fixed seat 5 respectively.

[0031] The pressure plate 9 is connected to the column 6 through a spacing adjustment mechanism. The spacing adjustment mechanism is a lead screw and nut mechanism, which consists of a lead screw 8 and a nut 7 assembled in the middle and fixed to the column 6.

Claims

1. Double bending device for a netting hook welding machine, comprising a main frame (11), characterized in that It also includes a movable frame (12) set on the main frame (11) and forming a conveying channel with it. The columns (6) are symmetrically arranged and slidably assembled on the movable frame (12) and the main frame (11) located on both sides of the conveying channel behind the first bending station. The columns (6) reciprocate in a direction perpendicular to the conveying channel under the drive of a power source with linear drive function. The inner side of the column (6) facing the conveying channel is provided with pressure plates (9) at longitudinal intervals that can act on the exposed bent part of the steel wire (15) formed in the first bending station.

2. The secondary bending device of a net covering hook welding machine according to claim 1, characterized in that The movable frame (12) and the main frame (11) reciprocate in a direction perpendicular to the conveying channel via a drive mechanism.

3. The secondary bending device of a net covering hook welding machine according to claim 1 or 2, characterized in that The upper and lower ends of the column (6) are slidably assembled with guide rails (1) set on the movable frame (12) and the main frame (11) respectively through the upper sliding sleeve (2) and the lower sliding sleeve (3).

4. The secondary bending device of a net covering hook welding machine according to claim 3, characterized in that The guide rail (1) is connected to the movable frame (12) or the main frame (11) via the upper fixed seat (4) and the lower fixed seat (5).

5. The secondary bending device of a veil hook welding machine according to claim 2, characterized in that The drive mechanism adopts a lead screw feeding mechanism, and the movable frame (12) and the main frame (11) are provided with mutually cooperating guide rails and guide wheels at the junction.

6. The secondary bending device of a netting hook welding machine according to any one of claims 1, 2, 4 or 5, characterized in that The pressure plate (9) is connected to the column (6) through the spacing adjustment mechanism.

7. The secondary bending device of the wire mesh hook welding machine according to claim 6, characterized in that... The spacing adjustment mechanism is selected from either a lead screw and nut mechanism or a parallelogram mechanism.

8. The secondary bending device of a net covering hook welding machine according to claim 7, characterized in that The spacing adjustment mechanism adopts a lead screw and nut mechanism, and the middle part of the lead screw (8) and the nut (7) fixed on the column (6) form a feed transmission pair.

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