A steel bar insertion machine for inserting steel mesh

Abstract

The present invention discloses a steel bar insertion machine for inserting steel mesh, comprising a front support mechanism, a rear support mechanism, and a rubber wheel driving mechanism. The front support mechanism has the same structure as the rear support mechanism, and uses two omnidirectional wheels to support steel bars and allow the steel bars to roll thereon. The distance between the two omnidirectional wheels is variable, thereby allowing the steel bar bend to pass through; the rubber wheel driving mechanism drives the rubber wheel through a motor, thereby driving the steel bar to move forward. The present invention can vertically insert the L-shaped steel bar fed into the grid of the steel mesh, and the L-shaped steel bar can completely pass through the steel bar insertion machine, and the bend portion of the L-shaped steel bar is close to the steel mesh.

Description

Technical Field

[0001] The invention relates to an insertion device, in particular to a steel bar insertion machine used for inserting steel bar meshes. Background Art

[0002] As the main framework of a building, the reinforced concrete structure can provide the main support for the building. Before forming a reinforced concrete structure, it is sometimes necessary to weld multiple horizontal and vertical steel bars into a steel mesh, and then cross the hook bars with elbows at both ends through multiple layers of steel meshes erected on the ground and parallel to each other, and tie them up to obtain a three-dimensional steel frame. At present, steel mesh can be produced through an automated production line, but because the length of the elbow part of the hook bar is greater than the diagonal length of the steel mesh grid, the step of inserting the hook bar can only be done manually, and tools are needed to overcome spatial interference. A hook bar must be inserted into each grid of the steel mesh, so the labor intensity of the workers is very high. In addition, workers need to climb frequently during the operation, which brings huge safety hazards. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a steel bar insertion machine for inserting steel mesh, which can vertically insert the fed "L"-shaped steel bar into the grid of the steel mesh, the "L"-shaped steel bar can completely pass through the steel bar insertion machine, and the elbow part of the "L"-shaped steel bar is close to the steel mesh.

[0004] Technical solution: The present invention provides a steel bar insertion machine for inserting steel mesh, comprising a frame and a rocker mechanism symmetrically installed on the frame, the rocker mechanism comprising a first connecting rod and a second connecting rod hinged at the front and rear sides of the frame respectively, and a rotating shaft connecting the first connecting rod and the second connecting rod; the rotating shaft comprises a first rotating shaft connecting the upper end of the second connecting rod and the first connecting rod, and a third rotating shaft connecting the lower end of the first connecting rod and the lower end of the second connecting rod, an omnidirectional wheel is rotatably connected to the first rotating shaft, a gap is left between the omnidirectional wheels of the left and right rocker mechanisms, and the third rotating shaft passes through the frame and is rotatably connected to the frame; the first connecting rod is provided with an extension portion extending upward from the connection with the first rotating shaft, an incomplete gear portion is provided at the upper end of the extension portion, a gear rotatably connected to the frame is provided above the first connecting rod, the gears of the left and right rocker mechanisms are meshed with each other, the incomplete gear portion is meshed with the gear on the same side, and the center of the pitch circle coincides with the axis center of the third rotating shaft.

[0005] Among them, a gap is left between the omnidirectional wheels on the left and right sides to ensure that the steel bar can rotate around the axis; the center of the pitch circle coincides with the center of the third rotating shaft, and when the first connecting rod swings within its stroke, the incomplete gear part and the gear always remain in a state of mutual meshing.

[0006] The rotating shaft includes a first rotating shaft, a second rotating shaft, and a third rotating shaft from top to bottom. The first rotating shaft is located at the upper part of the second connecting rod, and the omnidirectional wheel is installed on the first rotating shaft and can rotate freely. The second rotating shaft is located in the middle of the second connecting rod, and the third rotating shaft is located at the lower end of the first connecting rod and passes through the shaft hole of the support mechanism frame. The first connecting rod and the second connecting rod are hinged to the support mechanism frame through the third rotating shaft. Optionally, the swing arm mechanism is installed on the side of the frame, and the rotating shaft is installed horizontally.

[0007] The line connecting the axis center of the right omnidirectional wheel and the axis center of the right third rotating shaft in the above-mentioned rocker mechanism is recorded as the first line; the line connecting the axis center of the left omnidirectional wheel and the axis center of the left third rotating shaft is recorded as the second line; the intersection of the first line and the second line is not higher than the center point of the cross section of the steel bar; thereby ensuring that under the pressure of the steel bar on the two omnidirectional wheels, the rocker mechanisms on both sides do not swing away from the direction of the steel bar.

[0008] Preferably, a cam slider mechanism is provided under the rocker mechanism, and the cam slider mechanism includes a slider slidably matched with the frame, a slider connecting rod hinged to the slider at one end, a cam rotatably connected to the frame and arranged on one side of the slider, the other end of the slider connecting rod is rotatably connected to the second rotating shaft, the cam and the slider are in contact, and a reset spring is provided between the other side of the slider and the frame; the steel bar elbow drives the cam to rotate, the cam pushes the slider to slide, and the rocker mechanism connected to the slider connecting rod rotates accordingly, so that the distance between the omnidirectional wheels on both sides changes accordingly.

[0009] Among them, the cam slider mechanism can be connected to the left rocker mechanism, or the right rocker mechanism; a telescopic rod is provided between the slider and the frame, one end of the telescopic rod is fixedly connected to the slider, and the other end is fixedly connected to the side wall of the frame, and a return spring is sleeved on the telescopic rod.

[0010] When connected to the right rocker mechanism, when the cam rotates, the right rocker mechanism rotates accordingly, and the first connecting rod on the right drives the first connecting rod on the left to rotate in the opposite direction through the gear, and the distance between the omnidirectional wheels on both sides changes accordingly; when the steel bar elbow is about to disengage from the lever on the cam, the gap between the omnidirectional wheels on both sides reaches the maximum, allowing the steel bar elbow to pass through.

[0011] Preferably, it also includes a rubber wheel driving mechanism, which includes a driving motor and a rubber wheel shaft. The output shaft of the driving motor is connected to the rubber wheel shaft through an elastic coupling, and a rubber wheel is sleeved on the rubber wheel shaft. The driving motor drives the rubber wheel to rotate, driving the steel bar to move forward.

[0012] Among them, a lifting screw motor is provided on the top of the frame. The output shaft of the lifting screw motor is a screw rod, which forms a spiral pair with the screw nut fixed on the lifting frame. The lifting screw motor drives the lifting frame to move up and down, and the rubber wheel drive mechanism is installed on the lifting frame.

[0013] The middle part of the rubber wheel shaft is a spline shaft, the shaft hole of the rubber wheel shaft is a spline hole, the shaft and the shaft hole are matched with each other, and the rubber wheel can slide left and right along the rubber wheel shaft.

[0014] Furthermore, two return springs are sleeved on the rubber wheel shaft and symmetrically installed on both sides of the rubber wheel.

[0015] Preferably, a lever is fixedly connected above the cam, and a pulley is provided at the end of the lever; when the highest point of the profile of the cam contacts the slider, the gap between the omnidirectional wheels on both sides reaches the maximum state.

[0016] Preferably, a Y-shaped guide channel for the steel bar head to pass through is provided at the bottom of the frame.

[0017] Preferably, the cam base circle profile has a right-angled protrusion. When the lever is in a fixed position (the lever is located above the guide channel), the cam base circle part contacts the slider. When the lever is pushed by the steel bar elbow, the cam overcomes the thrust of the reset spring and starts to move. When the steel bar elbow is separated from the lever, the highest point of the cam has not yet contacted the slider, and the cam is reset under the thrust of the reset spring. The cam base circle profile has a right-angled protrusion to ensure that the cam does not continue to move due to inertia after being reset.

[0018] In order to realize the insertion of hook bars through an automated method, a feasible way is to replace the original hook bars with "L"-shaped steel bars that are bent at only one end and keep the other end in a straight state; two height-adjustable lifting platforms that can move parallel to the plane of the steel mesh are provided on the ground, and are located on the two outer sides of the multi-layer steel mesh respectively. A steel bar insertion machine and a steel bar bending machine are respectively installed on the lifting planes of the two lifting platforms. The steel bars on the ground are fed to the steel bar insertion machine by a steel bar feeder, and then the "L"-shaped steel bar is inserted into and passed through the multi-layer steel mesh along the unbent end through the steel bar insertion machine, and then the other end is bent by the steel bar bending machine, and then an automatic binding device is used to bind the wire, thereby realizing the automatic installation of the "L"-shaped steel bar.

[0019] The present invention provides a steel bar insertion machine for inserting L-shaped steel bars into steel bar mesh at the steel bar mesh insertion site of a bridge tower column, and is used in conjunction with a steel bar feeder and a steel bar bending machine. Its structure mainly includes a front support mechanism, a rear support mechanism, and a rubber wheel driving mechanism; the front support mechanism has the same structure as the rear support mechanism, and uses two omnidirectional wheels to support the steel bars and allow the steel bars to roll thereon. The distance between the two omnidirectional wheels is variable, thereby allowing the steel bar bend to pass through. The rubber wheel driving mechanism drives the rubber wheel through a motor, thereby driving the steel bar to move forward. The present invention can vertically insert the fed L-shaped steel bar into the grid of the steel bar mesh, and the L-shaped steel bar can completely pass through the steel bar insertion machine, and the bend portion of the L-shaped steel bar is close to the steel bar mesh.

[0020] Beneficial effects:

[0021] (1) For the steel bars transmitted in, the position of the steel bars can be automatically fixed, and the steel bars can be driven forward by the motor. The structure is simple and easy to control.

[0022] (2) The orientation of the steel bar elbow can be automatically adjusted during the conveying process by mechanical means without the need for additional control.

[0023] (3) The spacing between the two omnidirectional wheels can be controlled with the help of the steel bar bend, so that the steel bar bend can partially pass through the machine without the need for additional control.

[0024] (4) The height of the front end of the steel bar can be adjusted by lifting the screw motor to ensure that the steel bar can be inserted into the steel mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall three-dimensional schematic diagram of the present invention.

[0026] Figure 2 This is a diagram showing the relative positions of the steel bar insertion machine, the steel bars and the steel bar mesh of the present invention.

[0027] Figure 3 It is a right side view of the support mechanism of the present invention.

[0028] Figure 4 It is a right side cross-sectional view of the rubber wheel driving mechanism of the present invention.

[0029] Figure 5 It is the cam profile diagram of the present invention.

[0030] Figure 6a and Figure 6b This is a top view of the present invention, with some parts omitted; wherein: Figure 6a It is the state of the cam slider mechanism when the steel bar elbow has not passed through the front support mechanism. Figure 6b It is the state of the cam slider mechanism when the steel bar elbow passes through the front support mechanism.

[0031] Figure 7 It is an overall three-dimensional schematic diagram of the steel bar feeder and the steel bar insertion machine working together to transport steel bars. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the embodiments.

[0033] like Figures 1 to 7The figure shows a steel bar insertion machine for inserting steel mesh of the present invention, which mainly includes two sets of front and rear support mechanisms 1 with the same structure, a rubber wheel driving mechanism 2 and a steel bar guide channel 3. The support mechanisms are located on both sides of the frame, the rubber wheel driving mechanism is located above the frame, and the steel bar guide channel is located below the frame. The frame includes a support mechanism frame 1-1 and a driving mechanism frame 2-1, the driving mechanism frame 2-1 is located above the support mechanism frame 1-1, and two sets of rocker mechanisms 1-3 are symmetrically installed on the side wall of each support mechanism frame 1-1.

[0034] The rocker mechanism includes a first connecting rod 1-3-1 and a second connecting rod 1-3-2 respectively hinged on the front and rear sides of the frame, and a rotating shaft connecting the first connecting rod 1-3-1 and the second connecting rod 1-3-2. The rotating shafts are all installed in the horizontal direction. The rotating shafts include a first rotating shaft 1-3-3, a second rotating shaft 1-3-4, and a third rotating shaft 1-3-5 from top to bottom. The first rotating shaft 1-3-3 connects the upper end of the second connecting rod and the middle part of the first connecting rod, the second rotating shaft 1-3-4 connects the middle part of the second connecting rod and the lower middle part of the first connecting rod, the third rotating shaft 1-3-5 connects the lower ends of the first connecting rod and the second connecting rod and passes through the axial hole of the support mechanism frame 1-1, and the first connecting rod 1-3-1 and the second connecting rod 1-3-2 are connected to the support mechanism frame 1- 1 is hinged; an omnidirectional wheel 1-3-6 is rotatably connected to the first shaft, and a gap is left between the omnidirectional wheels 1-3-6 of the left and right swing arm mechanisms; an extension portion is extended upward from the connection of the first shaft 1-3-3 to the first connecting rod 1-3-1, and an incomplete gear portion is provided at the upper end of the extension portion. A gear 1-2 rotatably connected to the support mechanism frame 1-1 is provided above the first connecting rod, and the center of the pitch circle of the incomplete gear portion coincides with the axis of the third shaft 1-3-5. When the first connecting rod 1-3-1 swings within its stroke, the incomplete gear portion and the gear 1-2 always keep meshing with each other, and the two gears 1-2 of the left and right swing arm mechanisms are symmetrically installed and meshing with each other; that is, the incomplete gear portion of the first connecting rod 1-3-1 meshes with the gear 1-2 on the same side.

[0035] A cam slider mechanism is provided below the rocker mechanism, and the cam slider mechanism includes a slider that slides with the frame, a slider connecting rod hinged with the slider at one end, and a cam that is rotatably connected to the frame and arranged on one side of the slider. The other end of the slider connecting rod 1-4 is rotatably connected to the second rotating shaft 1-3-4, and the cam is in contact with the slider. A telescopic rod with a reset spring is installed between the other side of the slider and the frame, and one end of the telescopic rod is connected to the side wall of the slider, and the other end is connected to the side wall of the frame; the steel bar elbow drives the cam to rotate, and the cam pushes the slider to slide, and the rocker mechanism connected to the slider connecting rod rotates accordingly, so that the distance between the omnidirectional wheels on both sides changes accordingly. Among them, the rocker mechanism 1-3 located on the right side and the slider 1-5 and the slider connecting rod 1-4 constitute the rocker slider mechanism. There is a return spring 1-6 between one end of the slider 1-5 and the support mechanism frame 1-1. The return spring has a small elastic force and the other end is in contact with the cam 1-7. The slider 1-5 can slide on the support mechanism frame 1-1 under the drive of the cam 1-7. A shift rod 1-7-1 is fixedly connected above the cam 1-7, and the end of the shift rod is rotatably connected to a pulley 1-7-2.

[0036] Cam 1-7 as Figure 5 As shown, when the lever 1-7-1 is in a fixed position, the cam base circle part contacts the slider 1-5; when the lever is pushed by the steel bar elbow 5-1, the cam overcomes the thrust of the reset spring 1-6 and starts to move; when the steel bar elbow is separated from the lever, the highest point of the cam has not yet contacted the slider, and the cam is reset under the thrust of the reset spring. The cam base circle profile has a right-angle protrusion to ensure that the cam does not continue to move due to inertia after being reset.

[0037] A Y-shaped steel bar guide channel 3 is provided at the bottom of the frame for the steel bar head to pass through, and its guide coincides with the advancing direction of the steel bar; the width of the gap in the middle of the steel bar guide channel 3 is slightly larger than the diameter of the steel bar, and there is an enlarged opening at its front end; the lever on the cam faces the guide channel.

[0038] like Figure 3 As shown, for the support mechanism 1, when its cam 1-7 rotates, the rocker mechanism 1-3 installed on the right side rotates accordingly, and the first connecting rod 1-3-1 on the right side drives the first connecting rod 1-3-1 on the left side to rotate in the opposite direction through the gear 1-2, and the distance between the omnidirectional wheels 1-3-6 on both sides changes accordingly. When the steel bar elbow 5-1 is about to disengage from the lever 1-7-1 on the cam, the gap between the omnidirectional wheels 1-3-6 on both sides reaches the maximum, allowing the steel bar elbow to pass. In addition, the intersection position of the line connecting the axis of the right omnidirectional wheel 1-3-6 and the axis of the right third rotating shaft 1-3-5, and the line connecting the axis of the left omnidirectional wheel 1-3-6 and the axis of the left third rotating shaft 1-3-5 is not higher than the center of the steel bar cross section, thereby ensuring that the rocker mechanisms 1-3 on both sides do not swing away from the direction of the steel bar under the pressure of the steel bar on the two omnidirectional wheels 1-3-6.

[0039] like Figure 4 The rubber wheel driving mechanism 2 is shown, and its structure includes a driving mechanism frame 2-1, a lifting frame 2-2, a lifting screw motor 2-3, a rubber wheel 2-4, a rubber wheel shaft 2-5, a rubber wheel driving motor 2-6, and a rubber wheel return spring 2-7. Four screws 2-9 fix the driving mechanism frame 2-1 to the two supporting mechanism frames 1-1 on both sides. The lifting screw motor 2-3 is fixed on the driving mechanism frame 2-1. Two vertical sliding bearings 2-2-1, two horizontal sliding bearings 2-2-2, and a screw nut 2-2-3 are installed on the lifting frame 2-2. The output shaft of the lifting screw motor 2-3 is a screw rod, which forms a spiral pair with the screw nut 2-2-3. Through the vertical sliding bearings 2-2-1 and the screw nut 2-2-3, the lifting frame 2-2 can move along the driving mechanism frame 2-1 in the vertical direction under the drive of the lifting screw motor 2-3; through the two horizontal sliding bearings 2-2-2, the rubber wheel shaft 2-5 can rotate in the lifting frame 2-2. The middle part of the rubber wheel shaft 2-5 is a spline shaft, and the shaft hole of the rubber wheel shaft 2-5 is a spline hole. The shaft and the shaft hole are matched, and the rubber wheel 2-4 can slide left and right along the rubber wheel shaft 2-5. The rubber wheel driving motor 2-6 is fixed on the lifting frame 2-2, and the motor output shaft is connected to the rubber wheel shaft 2-5 through a coupling 2-8. Two rubber wheel reset springs 2-7 are sleeved on the rubber wheel shaft 2-5, and are symmetrically distributed on the left and right. One end of the rubber wheel reset spring 2-7 is close to the end face of the rubber wheel 2-4, and the other end is close to the end face of the horizontal sliding bearing 2-2-2.

[0040] The steel bar insertion machine for inserting steel mesh of the present invention is used in the following manner: Figure 7 As shown, the steel bar inserter and the steel bar feeder 4 are fixed on the lifting platform 6. Before the "L"-shaped steel bar 5 is fed in, the lifting frame 2-2 is at the highest position to ensure that there is enough space for the "L"-shaped steel bar to be fed in by the steel bar feeder 4. After the "L"-shaped steel bar is fed in, the rear end and the middle are respectively located above the two omnidirectional wheels 1-3-6 of the front and rear support mechanisms. At this time, the lifting frame 2-2 is driven to descend, and the rubber wheel 2-4 presses down the rear end of the steel bar until the "L"-shaped steel bar remains horizontal. At this time, the steel bar feeder 4 is removed, and the "L"-shaped steel bar maintains balance under its own gravity, the pressure of the rubber wheel 2-4, and the support force of the four omnidirectional wheels 1-3-6. At this time, the rubber wheel drive motor 2-6 drives the rubber wheel 2-4 to rotate, and the friction between the rubber wheel 2-4 and the steel bar is large, and the steel bar moves backward as the rubber wheel 2-4 rotates.

[0041] like Figure 6aAs shown in FIG. 6b, when the steel bar elbow 5-1 approaches the steel bar insertion machine, if the direction of the steel bar elbow is at a certain angle to the vertical direction, the steel bar elbow will touch the enlarged opening at the front end of the steel bar guide channel 3, and the steel bar elbow will rotate around the steel bar body, thereby correcting the direction of the steel bar elbow to be vertical. In this process, the omnidirectional wheel 1-3-6 rotates with the rotation of the steel bar body, and the rubber wheel 2-4 moves left and right on the rubber wheel shaft 2-5 with the rotation of the steel bar body. One of the two rubber wheel reset springs 2-7 is stretched and the other is compressed. When the steel bar elbow touches the pulley 1-7-2 at the end of the lever, it will push the cam 1-7 to rotate, and then the distance between the omnidirectional wheels 1-3-6 on both sides will change accordingly. At this time, the center of gravity of the steel bar is located at the rear side of the machine, and the omnidirectional wheels of the front support mechanism 1 are no longer subject to the cam pressure. The steel bar elbow can smoothly pass through the gap between the omnidirectional wheels of the front support mechanism. In this process, the end of the steel bar elbow is located in the gap in the middle of the steel bar guide channel 3. Then, the steel bar bending machine on the other side of the mesh will clamp the rear end of the steel bar and pull it backwards, and finally make the steel bar elbow pass through the gap between the omnidirectional wheels 1-3-6 of the rear support mechanism 1 in the same way until it is close to the steel mesh 7. In this process, when the steel bar is separated from the rubber wheel, the two rubber wheel reset springs 2-7 return to their original shape, so that the rubber wheel 2-4 is reset.

[0042] like Figure 2 As shown, the present invention provides a steel bar insertion machine, which can vertically insert the "L"-shaped steel bar fed by the steel bar feeder into the grid of the steel mesh. The steel bar bending machine is provided on the other side of the steel mesh. With the assistance of the steel bar bending machine, the "L"-shaped steel bar can completely pass through the steel bar insertion machine, and the elbow part of the "L"-shaped steel bar is close to the steel mesh. Figure 7 As shown, a steel bar feeder is used to feed the steel bars on the ground to the steel bar insertion machine, and then the steel bar insertion machine is used to insert the "L"-shaped steel bars along the unbent end and pass through the multi-layer steel mesh, and then the other end is bent by the steel bar bending machine, and then the automatic binding device is used to bind the wire, thereby realizing the automatic installation of the "L"-shaped steel bars.

Claims

1. A steel bar insertion machine for inserting steel mesh, characterized in that: The invention comprises a frame and a swing rod mechanism (1-3) symmetrically mounted on the frame, wherein the swing rod mechanism comprises a first connecting rod (1-3-1) and a second connecting rod (1-3-2) respectively hinged to the front and rear sides of the frame, and a rotating shaft connecting the first connecting rod and the second connecting rod; the rotating shaft comprises a first rotating shaft (1-3-3) connecting the upper end of the second connecting rod and the first connecting rod, and a third rotating shaft (1-3-5) connecting the lower end of the first connecting rod and the lower end of the second connecting rod; an omnidirectional wheel (1-3-6) is rotatably connected to the first rotating shaft, and a space is left between the omnidirectional wheels of the left and right swing rod mechanisms. There is a gap, the third rotating shaft passes through the frame and is rotatably connected to the frame; the first connecting rod extends upward from the connection of the first rotating shaft to form an extension portion, the upper end of the extension portion is provided with an incomplete gear portion, the upper end of the first connecting rod is provided with a gear (1-2) rotatably connected to the frame, the gears of the left and right swing arm mechanisms are meshed with each other, the incomplete gear portion is meshed with the gear on the same side, and the pitch circle center of the incomplete gear portion coincides with the axis center of the third rotating shaft; a cam slider mechanism is provided below the swing arm mechanism, and the rotating shaft also includes a second rotating shaft (1-2) located between the first rotating shaft and the third rotating shaft 3-4); the cam slider mechanism comprises a slider (1-5) slidably matched with the frame, a slider connecting rod (1-4) one end of which is hinged to the slider, a cam (1-7) rotatably connected to the frame and arranged on one side of the slider, the other end of the slider connecting rod is rotatably connected to the second rotating shaft, the cam and the slider are in contact, and a return spring (1-6) is arranged between the other side of the slider and the frame; the steel bar elbow drives the cam to rotate, the cam pushes the slider to slide, and the rocker mechanism connected to the slider connecting rod rotates accordingly, so that the distance between the omnidirectional wheels on both sides changes accordingly; it also includes a rubber wheel A driving mechanism, wherein the rubber wheel driving mechanism comprises a driving motor (2-6) and a rubber wheel shaft (2-5), wherein an output shaft of the driving motor is connected to the rubber wheel shaft via an elastic coupling, and a rubber wheel (2-4) is sleeved on the rubber wheel shaft; the driving motor drives the rubber wheel to rotate, thereby driving the steel bar to move forward; a line connecting the axis of the right omnidirectional wheel of the swing arm mechanism and the axis of the right third rotating shaft is recorded as a first line; a line connecting the axis of the left omnidirectional wheel and the axis of the left third rotating shaft is recorded as a second line; wherein the intersection of the first line and the second line is not higher than the center of a cross section of the steel bar.

2. The steel bar insertion machine for inserting steel mesh according to claim 1, characterized in that: A lifting screw motor (2-3) is arranged on the top of the frame. The output shaft of the lifting screw motor is a screw rod, which forms a screw pair with a screw nut fixed on the lifting frame. The lifting screw motor drives the lifting frame to move up and down. The rubber wheel driving mechanism is installed on the lifting frame.

3. The steel bar insertion machine for inserting steel mesh according to claim 1, characterized in that: The middle part of the rubber wheel shaft (2-5) is a spline shaft, the shaft hole of the rubber wheel (2-4) is a spline shaft hole, the spline shaft and the spline shaft hole are clearance-matched, and the rubber wheel (2-4) can slide left and right along the rubber wheel shaft (2-5).

4. The steel bar insertion machine for inserting steel mesh according to claim 3, characterized in that: Two return springs are sleeved on the rubber wheel shaft and symmetrically installed on both sides of the rubber wheel.

5. The steel bar insertion machine for inserting steel mesh according to claim 1, characterized in that: A lever (1-7-1) is fixedly connected above the cam (1-7), and a pulley (1-7-2) is provided at the end of the lever.

6. The steel bar insertion machine for inserting steel mesh according to claim 1, characterized in that: The bottom of the frame is provided with a Y-shaped guide channel for the steel bar head to pass through.

7. The steel bar insertion machine for inserting steel mesh according to claim 1, characterized in that: The cam base circle profile has a right-angled protrusion.

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