A steel bar feeder for inserting steel mesh

Abstract

The present invention discloses a steel bar feeder for steel mesh insertion, comprising a conveying mechanism, a storage platform, a pushing mechanism and a delivery mechanism, wherein the conveying mechanism and the pushing mechanism are respectively located on both sides of the storage platform; the conveying mechanism delivers the steel bar to the storage platform, and under the push of the pushing mechanism, the baffle is retracted, and the steel bar passes through a second gap and falls into the delivery mechanism, and the delivery mechanism delivers the steel bar to a designated position. The present invention can automatically convey the L-shaped steel bar located on the ground to a high place and feed it into the steel bar insertion machine, and multiple steel bars can be put in at one time, which reduces the labor of workers and saves the labor time of workers.

Description

Technical Field

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

[0002] When constructing large buildings, reinforced concrete structures are inevitably needed. As the main framework of the building, reinforced concrete structures 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 pass the hook bars with elbows at both ends through multiple layers of steel meshes that are erected on the ground and parallel to each other, and tie them up to obtain a three-dimensional steel frame.

[0003] At present, steel mesh can be produced through automated production lines, but because the length of the elbow of the hook bar is longer than the diagonal length of the steel mesh grid, the step of inserting the hook bar can only be completed 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 frequently climb high during the operation, which also brings huge safety hazards. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a steel bar feeder for interlacing steel mesh, which can convey the "L"-shaped steel bars located on the ground to a high place and deliver them to the desired location.

[0005] Technical solution: The steel bar feeder for interlacing steel mesh of the present invention includes a conveying mechanism, a storage platform, a pushing mechanism and a delivery mechanism, wherein the conveying mechanism and the pushing mechanism are respectively located on both sides of the storage platform; the storage platform includes a storage panel and a side baffle, a first gap for the steel bar elbow to pass through is provided between the storage panel and the side baffle, a second gap for the steel bar to pass through is provided between the storage panel and the pushing mechanism, a movable baffle for preventing the steel bar from passing through the second gap is provided at the side end of the storage panel close to the pushing mechanism, and the delivery mechanism is arranged below the storage panel; the conveying mechanism delivers the steel bar to the storage platform, and under the push of the pushing mechanism, the movable baffle is retracted, the steel bar passes through the second gap and falls into the delivery mechanism, and the delivery mechanism delivers the steel bar to the designated position.

[0006] Optionally, there are two movable baffles, which are arranged on the left and right sides.

[0007] Preferably, the conveying mechanism includes a conveying frame, a sprocket, a transmission chain, a sprocket shaft, a conveying groove and a driving motor. Sprockets and transmission chains are provided on both sides of the conveying frame. The two corresponding sprockets on the left and right are fixed to the same sprocket shaft. The sprocket shaft and the frame are connected by bearings. A conveying groove perpendicular to the conveying direction is fixed on the transmission chain, and the notch of the conveying groove is set upward.

[0008] Among them, the conveying trough is used to place L-shaped steel bars. One end of the conveying trough is open, and a hole is provided on the other end of the trough. The hole is used to insert the steel bar elbow. There is a side plate in the hole to limit the swing of the steel bar elbow in one direction.

[0009] Preferably, a sprocket shaft sleeve is provided on the side of the storage panel close to the conveying mechanism, which is hinged to the sprocket shaft at the top of the conveying frame, a space for the conveying groove to pass through is provided between the storage panel and the conveying mechanism, and a supporting wheel is provided at the bottom end of the conveying frame.

[0010] Preferably, the pushing mechanism comprises a first push rod motor and a cross beam, the cross beam and the first push rod motor are fixedly connected, and the first push rod motor drives the cross beam to move up and down in the second gap. Optionally, the width of the cross beam is the same as the diameter of the steel bar.

[0011] Preferably, the delivery mechanism includes a slide rail fixedly connected to the storage panel, a conveying plate slidably matched with the slide rail, a rack is provided on the slide rail, and the conveying plate is fixedly connected with a driving device and a gear, the gear and rack are meshed, and a structure for receiving steel bars is provided on the conveying plate; the driving device drives the gear and the rack to mesh and transmit, so that the conveying plate slides along the slide rail.

[0012] The structure for receiving the steel bars includes a second push rod motor, and a hole for the second push rod motor to enter and exit is arranged on the transmission plate.

[0013] Preferably, the slide rail is arranged in parallel with the storage panel, and an electromagnet is provided on the steel bar conveying plate.

[0014] Preferably, one side of the storage panel is tilted downward, with the tilted end close to the pushing mechanism, a notch is provided at the lower edge of the storage panel, and the movable baffle is located in the notch.

[0015] Preferably, a sensing device for detecting whether there are steel bars is provided on the storage panel, such as an infrared transmitter and receiver.

[0016] The slide rail is arranged in parallel with the storage panel, and an electromagnet is arranged on the steel bar conveying plate.

[0017] Preferably, a notch is provided at the side edge of the storage panel, and a movable baffle is rotatably connected to the notch. The movable baffle includes an upper baffle and a lower baffle that are perpendicular to each other. A telescopic rod with a spring is installed at the bottom of the storage panel, and the front end of the telescopic rod abuts against the rear end of the lower baffle, so that the upper surface of the upper baffle is flush with the upper surface of the storage panel.

[0018] Optionally, a rectangular notch is provided at the inclined end of the storage panel, and a rotating shaft is fixed on each inner side wall on both sides thereof, the axis of the rotating shaft is parallel to the axis of the steel bar, and the movable baffle is rotatably mounted on the rotating shaft. The cross section of the movable baffle is "L" shaped, including an upper plane and a side plane perpendicular to each other, and its upper plane coincides with the upper plane of the storage panel in the reset state, and its side plane faces downward. A set of telescopic rods is provided at the rear of each movable baffle, one end of the telescopic rod is fixed to the bottom surface of the storage panel, and the other end contacts the side plane of the movable baffle, and a spring is sleeved on the telescopic rod.

[0019] The feeding method of the steel bar feeder of the present invention comprises the following steps: one end of the conveying mechanism is connected to the storage table, the storage table and the delivery mechanism are fixed on the lifting platform, the lifting platform is raised to the required height, the conveying mechanism conveys the steel bars to the storage table, the pushing mechanism pushes downward, the movable baffle rotates downward, the steel bars fall onto the delivery mechanism, and the delivery mechanism delivers the L-shaped steel bars to the designated position.

[0020] The present invention is a steel bar feeder used to deliver "L"-shaped steel bars to a high place at the site of steel mesh insertion of bridge towers. Its structure includes a steel bar conveyor belt, a steel bar storage platform, a steel bar pushing mechanism and a steel bar delivery mechanism. A certain number of delivery slots are fixed on the steel bar conveyor belt. After the steel bars are placed in the delivery slots by workers, they can be delivered from the ground to a high place along the conveyor belt; the steel bar storage platform can temporarily store a certain number of steel bars; the steel bar pushing mechanism can press the steel bars at the front end of the storage platform downward; the steel bar delivery mechanism can move horizontally along the steel bar storage platform to deliver the steel bars to a steel bar insertion machine. The present invention has a simple structure, which not only solves the problem of low efficiency caused by workers manually inserting steel bars into the steel bar insertion machine on the ground and requiring frequent lifting of the elevator, but also can store multiple steel bars at one time, saving workers' labor time.

[0021] 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.

[0022] Beneficial effects:

[0023] (1) The present invention can automatically transport L-shaped steel bars located on the ground to a high place and feed them into a steel bar insertion machine, and multiple steel bars can be inserted at one time, thereby reducing the workload of workers and saving their working time;

[0024] (2) The steel bars can be accurately fed into the steel bar insertion machine, avoiding the problem of insufficient precision caused by manual insertion;

[0025] (3) The overall mechanism can automatically adjust the height as the lifting plane moves up and down, and can move as the lifting platform moves along the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall three-dimensional schematic diagram of the present invention;

[0027] Figure 2 It is a three-dimensional schematic diagram of the steel bar conveyor belt of the present invention;

[0028] Figure 3 A three-dimensional schematic diagram of the conveying trough of the present invention;

[0029] Figure 4 It is a three-dimensional schematic diagram of the steel bar storage platform of the present invention;

[0030] Figure 5 It is a partial three-dimensional schematic diagram of the steel bar storage platform of the present invention;

[0031] Figure 6 It is a three-dimensional schematic diagram of the steel bar pushing mechanism of the present invention;

[0032] Figure 7 is a three-dimensional schematic diagram of a steel bar delivery mechanism of the present invention;

[0033] Figure 8 It is a three-dimensional schematic diagram of a steel bar storage platform, a steel bar pushing mechanism and a steel bar delivery mechanism before the feeding task of a steel bar begins;

[0034] Fig. 9 A three-dimensional schematic diagram of the steel bar storage platform, the steel bar pushing mechanism and the steel bar delivery mechanism after the steel bar pushing mechanism pushes the steel bar to the steel bar delivery mechanism;

[0035] Fig.10 yes Fig. 9 Left view of

[0036] Fig.11 A three-dimensional schematic diagram of a steel bar storage platform, a steel bar pushing mechanism and a steel bar delivery mechanism after the steel bars are inserted into the steel bar insertion machine;

[0037] Fig.12 It is a three-dimensional schematic diagram of the rebar storage platform, the rebar pushing mechanism and the rebar delivery mechanism after the rebar feeding task is completed. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below with reference to the embodiments.

[0039] like Figure 1 , 2 As shown, the feeder includes a steel bar conveying mechanism 1, a steel bar storage platform 2, a steel bar pushing mechanism 3 and a steel bar delivery mechanism 4. The steel bar pushing mechanism 3 and the steel bar conveying mechanism 1 are respectively located on the left and right sides of the steel bar storage platform 2; the structure of the steel bar conveying mechanism 1 mainly includes a conveying frame 1-1, a sprocket 1-2, a transmission chain 1-3, a sprocket shaft 1-4, a conveying trough 1-5 and a driving motor 1-6. Sprockets 1-2 and transmission chains 1-3 are installed on both sides of the steel bar conveyor frame 1-1. The two corresponding sprockets 1-2 on the left and right are fixed on the same sprocket shaft 1-4. The sprocket shaft 1-4 passes through the two ends of the conveying frame 1-1 in the horizontal direction. Sprockets 1-2 are installed at both ends respectively. The sprocket shaft 1-4 is connected to the frame 1-1 through bearings. Conveying troughs 1-5 are installed on the transmission chain 1-3 at regular intervals, and the groove direction is perpendicular to the conveying direction and upward. The driving motor 1-6 is fixedly installed on the conveying frame 1-1, and the sprocket 1-2 is driven by the driving motor 1-6 to convey the conveying trough 1-5 from the ground to a high place. One end of the steel bar conveying mechanism 1 is supported on the ground by the wheel 1-7, and the other end is hinged to the sprocket shaft sleeve 2-1-2 through the top sprocket shaft 1-4-1 and installed on the outer side of the sprocket installed on the top sprocket shaft 1-4-1.

[0040] The steel bar storage table 2 is fixed to the lifting platform 5. When the lifting platform 5 is lifted, the top sprocket shaft 1-4-1 rotates freely, the wheel 1-7 rolls on the ground, and the inclination angle between the frame 1-1 and the ground changes accordingly.

[0041] like Figure 3 As shown, the conveying trough 1-5 is used to place L-shaped steel bars. The interior of the conveying trough 1-5 can accommodate a steel bar. One end is open, and the other end is provided with a bending portion that bends downward and extends to form a vertically downward hole. The hole is used to insert the steel bar elbow 6-1. The bending portion includes a vertically downward first side plate 1-5-1 and a second side plate 1-5-2, which guide the steel bar elbow 6-1 in and out of the hole. The first side plate 1-5-1 can limit the swing of the steel bar elbow 6-1 in one direction. When the steel bar 6 is loaded in the conveying trough 1-5 and conveyed to the top position along with the chain 1-3, the notch direction of the conveying trough 1-5 gradually changes. When the notch direction faces forward, the steel bar in the conveying trough 1-5 is separated from the conveying trough 1-5 under the action of its own gravity and inertia, falls to the steel bar storage panel 2-1-1 and slides down until it contacts the previous steel bar and stops moving.

[0042] like Figure 4 , 5The steel bar storage platform 2 is shown, and its frame 2-1 includes a steel bar storage panel 2-1-1, a sprocket shaft sleeve 2-1-2 located at the upper left end of the storage panel, a fixed bracket 2-1-3 at the bottom of the storage panel, and a side baffle 2-1-4 located at the right side of the storage panel. One side of the storage panel 2-1-1 is tilted downward, and the tilted end is close to the pushing mechanism. A first gap is provided between the steel bar storage panel 2-1-1 and the side baffle 2-1-4 to allow the steel bar elbow 6-1 to pass through. The fixed bracket 2-1-3 is fixed on the lifting platform 5. A second gap is provided between the lower edge of the steel bar storage panel 2-1-1 and the push rod motor fixed plate 3-1-1, and the second gap is slightly wider than the diameter of the steel bar. A rectangular notch is provided at the lower edge of the steel bar storage panel 2-1-1, and a rotating shaft 2-6 is fixed on the inner side walls on the left and right sides of the notch, and its axis is parallel to the axis of the steel bar. The movable baffle 2-3 is rotatably installed on the rotating shaft 2-6 to prevent the steel bar from passing through the second gap and allow the movable baffle to rotate around the rotating shaft 2-6.

[0043] The movable baffle 2-3 is in an "L" shape, and includes an upper baffle 2-3-1 and a lower baffle 2-3-2 which are perpendicular to each other. A set of telescopic rods 2-5 is arranged behind each movable baffle 2-3. One end of the telescopic rod 2-5 is fixed to the bottom surface of the storage panel 2-1-1, and the other end is in contact with the rear side wall of the lower baffle 2-3-2. A spring 2-4 is sleeved on the telescopic rod 2-5. When the movable baffle 2-3 is in the reset position, the upper surface of the upper baffle 2-3-1 coincides with the upper plane of the steel bar storage panel 2-1-1, and the lower baffle 2-3-2 is tilted downward. The weight of the steel bars at the front end stored on the steel bar storage platform 2 is borne by the movable baffle 2-3, and the weight of the remaining steel bars is borne by the steel bar storage panel 2-1-1. When the movable baffle 2-3 rotates downward, the lower baffle 2-3-2 causes the spring 2-4 to deform, generating resistance to the rotation of the movable baffle 2-3.

[0044] There are two holes at different heights on the steel bar storage panel 2-1-1, and an infrared transmitter and receiver 2-2 is arranged under each hole to detect whether there are steel bars at their respective positions. When the infrared transmitter and receiver at the lower position cannot detect steel bars, it means that the number of steel bars temporarily stored on the steel bar storage platform is too small, and the workers should put in a certain number of steel bars; when the infrared transmitter and receiver at the higher position detects steel bars, it means that the number of steel bars temporarily stored on the steel bar storage platform is too large, and the workers should stop putting in steel bars.

[0045] like Figure 6The steel bar pushing mechanism 3 is shown, and its frame 3-1 includes a push rod motor fixing plate 3-1-1 and a bracket 3-1-2, the bracket 3-1-2 is fixed to the lifting platform 5, and two push rod motors 3-2 are installed on the push rod motor fixing plate 3-1-1, and the push rods of the two push rod motors 3-2 are fixed on the same crossbeam 3-3, and the width of the crossbeam 3-3 is equal to the diameter of the steel bar. The crossbeam 3-3 can move up and down in the second gap between the push rod motor fixing plate 3-1-1 and the steel bar storage panel 2-1-1 under the drive of the push rod motor 3-2.

[0046] like Figure 7 As shown, the steel bar delivery mechanism 4 is connected to the steel bar storage platform 2 through a set of slide rail sliders and a pair of gear racks. The rack 4-5 is fixed on the slide rail 4-3. The slide rail 4-3 is fixed to the steel bar storage panel 2-1-1 through the slide rail fixing bracket 4-6. The slider 4-4 is fixed to the steel bar conveying plate 4-1, and the slider 4-4 can slide on the slide rail 4-3. The motor fixing frame 4-7 is fixed to the steel bar conveying plate 4-1, and the motor 4-9 is installed on the motor fixing frame 4-7. The gear 4-8 is fixed on the motor output shaft, and the gear 4-8 is meshed with the rack 4-5. The motor 4-9 can drive the steel bar delivery mechanism 4 to move to the steel bar insertion machine on the left side through the gear 4-8. The steel bar conveying plate 4-1 is embedded with an electromagnet 4-2, which can fix the steel bar through magnetic attraction. The two ends of the steel bar conveying plate 4-1 are respectively provided with holes, and each hole is respectively provided with a push rod motor 4-10 behind it. The push rod axis direction of the push rod motor is about 45° with the vertical direction. When the push rod of the push rod motor is at the minimum stroke position, the push rod is completely located inside the steel bar conveying plate 4-1; when the push rod of the push rod motor is at the maximum stroke position, the push rod extends obliquely upward out of the hole, and the two push rods can hold up one steel bar.

[0047] The present invention can transfer the "L"-shaped steel bars located on the ground to a high place and deliver them to the steel bar insertion machine. Figures 8 to 10As shown, the method of feeding steel bars using the above-mentioned feeder is as follows: a worker inserts an L-shaped steel bar into the conveying trough at the lower part of the conveying mechanism, and the conveying mechanism conveys the steel bar to the storage table. The steel bar falls out of the conveying trough and slides to the inclined end of the storage panel, that is, the front end of the steel bar is located at the upper end of the movable baffle and is close to the push rod motor fixing plate 3-1-1; there are a certain number of steel bars on the steel bar storage table 2. When the feeding task of a steel bar begins, first, the two push rod motors 4-10 on the steel bar delivery mechanism 4 push the push rod forward until the push rod extends to the outside of the steel bar conveying plate 4-1, and then the steel bar pushing mechanism 3 starts to work. When the push rod motor 3-2 starts and moves to the maximum stroke position, the crossbeam 3-3 presses the front end steel bar on the steel bar storage panel 2-1-1 downward, and overcomes the supporting force of the spring 2-4 on the steel bar through the movable baffle 2-3, until the movable baffle 2-3 turns a certain angle, the steel bar is separated from the movable baffle 2-3 and falls to the push rods of the two push rod motors 4-10 below, and is adsorbed on the steel bar conveying plate 4-1 by the electromagnet 4-2.

[0048] like Fig.11 , 12 As shown, then, the motor 4-9 drives the steel bar conveying plate 4-1 to move to the left, and the steel bar also moves with it until the left end of the steel bar is inserted into the steel bar insertion machine. At this time, the electromagnet 4-2 is powered off, and the steel bar is separated from the steel bar conveying plate 4-1; the push rod motor 4-10 retracts the push rod to the inside of the steel bar conveying plate 4-1 to avoid interference with the steel bar during the resetting process. Then the motor 4-9 drives the steel bar conveying plate 4-1 to reset; the push rod motor 3-2 of the steel bar pushing mechanism 3 drives the crossbeam 3-3 to reset. At this point, the feeding task of one steel bar is completed, and the next feeding task begins after the lifting platform moves to the next grid position of the steel mesh.

Claims

1. A steel bar feeder for inserting steel mesh, characterized in that: It includes a conveying mechanism, a storage platform, a pushing mechanism and a delivery mechanism, wherein the conveying mechanism and the pushing mechanism are respectively located on both sides of the storage platform; the storage platform includes a storage panel and a side baffle, a first gap for the steel bar elbow to pass through is provided between the storage panel and the side baffle, a second gap for the steel bar to pass through is provided between the storage panel and the pushing mechanism, a movable baffle for preventing the steel bar from passing through the second gap is provided at the side end of the storage panel close to the pushing mechanism, and the delivery mechanism is arranged below the storage panel; the conveying mechanism delivers the steel bar to the storage platform, and under the push of the pushing mechanism, the movable baffle is retracted, the steel bar passes through the second gap and falls into the delivery mechanism, and the delivery mechanism delivers the steel bar to the designated position; The delivery mechanism comprises a slide rail (4-3) fixedly connected to the storage panel (2-1-1), and a transmission plate (4-1) slidably matched with the slide rail (4-3), the slide rail is provided with a rack, the transmission plate is fixedly connected with a driving device and a gear, the gear and rack are meshed, and the transmission plate is provided with a structure for receiving steel bars; A sensing device for detecting whether there are steel bars is provided on the storage panel (2-1-1); The side edge of the storage panel (2-1-1) is provided with a notch, and the movable baffle (2-3) is rotatably connected to the notch. The movable baffle comprises an upper baffle (2-3-1) and a lower baffle (2-3-2) which are perpendicular to each other. A telescopic rod (2-5) sleeved with a spring (2-4) is installed at the bottom of the storage panel, and the front end of the telescopic rod abuts against the rear end of the lower baffle, so that the upper surface of the upper baffle is flush with the upper surface of the storage panel.

2. The steel bar feeder for steel mesh insertion according to claim 1, characterized in that: The transmission mechanism comprises a transmission frame (1-1), a sprocket (1-2), a transmission chain (1-3), a sprocket shaft (1-4), a transmission groove (1-5) and a driving motor (1-6); sprockets (1-2) and transmission chains (1-3) are arranged on both sides of the transmission frame (1-1); the sprockets (1-2) corresponding to the left and right are fixed to the same sprocket shaft (1-4); the sprocket shaft (1-4) and the transmission frame (1-1) are connected via a bearing; and a transmission groove (1-5) perpendicular to the transmission direction is fixedly arranged on the transmission chain (1-3).

3. The steel bar feeder for steel mesh insertion according to claim 2, characterized in that: A sprocket shaft sleeve (2-1-2) is provided on the side of the storage panel (2-1-1) close to the conveying mechanism, which is hinged to the sprocket shaft at the top of the conveying frame. A space for the conveying slot to pass through is provided between the storage panel and the conveying mechanism, and a supporting wheel (1-7) is provided at the bottom end of the conveying frame.

4. The steel bar feeder for steel mesh insertion according to claim 1, characterized in that: The pushing mechanism comprises a first push rod motor and a cross beam, the cross beam and the first push rod motor are fixedly connected, and the first push rod motor drives the cross beam to move up and down in the second gap.

5. The steel bar feeder for steel mesh insertion according to claim 1, characterized in that: The structure for receiving the steel bars comprises a second push rod motor, and a hole for the second push rod motor to enter and exit is arranged on the transmission plate.

6. The steel bar feeder for steel mesh insertion according to claim 1, characterized in that: One side of the storage panel (2-1-1) is tilted downward, and the tilted end is close to the pushing mechanism. A notch is provided on the lower edge of the storage panel, and the movable baffle is located in the notch.

7. The steel bar feeder for steel mesh insertion according to claim 1, characterized in that: The slide rail is arranged in parallel with the storage panel, and an electromagnet (4-2) is arranged on the steel bar transmission plate.

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