C-shaped steel palletizing equipment and palletizing method

Abstract

The present invention discloses a C-shaped steel stacking device and a stacking method thereof, the device comprises a stacking platform, a conveying device, a transmission device, a flipping device, a supporting and transferring device, and a pushing device. The conveying device conveys the C-shaped steel to the conveying device, the transmission device transmits the C-shaped steel to the stacking platform, the flipping device flips the C-shaped steel so that the opening of the C-shaped steel faces downward, the supporting and transferring device supports and transports the C-shaped steel with the opening facing downward so that it is buckled upside down on the C-shaped steel with the opening facing upward to form a stacking structure, and the pushing device pushes the stacking structure so that the whole is clamped to form a tight stacking structure. The present invention can convey an entire row of C-shaped steels, flip the C-shaped steels so that the opening of the C-shaped steels faces downward and is buckled upside down on the C-shaped steel with the opening facing upward, so that the upper and lower rows of C-shaped steels form a stacking structure with high stacking efficiency, and then the stacking structure is pushed tightly so that the whole is clamped to form a tight stacking structure, and multiple groups of C-shaped steels can be stacked together flatly, tightly and neatly, which is convenient for packaging, storage and transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of processing equipment, in particular to a C-shaped steel palletizing device and a palletizing method thereof. Background Art

[0002] C-shaped steel is a cold-rolled profile with a C-shaped cross-section. It has thin walls, light weight, excellent performance and high strength. It is mainly used in the construction field. At present, C-shaped steel is automatically processed and formed by C-shaped steel forming machines, and an assembly line production has been formed. After it is formed, in order to save packaging costs, storage costs and transportation costs, two adjacent rows of C-shaped steel are generally required to be inverted together to form a regular stacking structure to reduce the occupied space. In the existing technology, the stacking and stacking of C-shaped steel is usually carried out manually. However, C-shaped steel is a profile and is generally long, with a length between 2m and 15m. This not only wastes manpower and material resources, but also has low work efficiency and low degree of automation, and there are safety hazards. It is no longer suitable for the needs of mass production. Summary of the Invention

[0003] The object of the present invention is to provide a C-shaped steel palletizing device and a palletizing method thereof to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a C-shaped steel stacking device, comprising a stacking platform, which can be raised and lowered, and also comprising a conveying device, a transmission device, a flipping device, a support and transfer device, and a pushing device. The conveying device is used to convey the C-shaped steel to the conveying device, and the conveying device is used to transmit the C-shaped steel to the stacking platform. The flipping device is used to flip the C-shaped steel so that the opening of the C-shaped steel faces downward. The support and transfer device is used to support and transfer the C-shaped steel with the opening facing downward so that it is inverted on the C-shaped steel with the opening facing upward to form a stacking structure. The pushing device is used to push the stacking structure so that the whole structure is clamped to form a tight stacking structure.

[0005] Furthermore, the conveying device includes a conveying chain, a first sprocket, a second sprocket, a gear box, and a drive motor. The conveying chain is mounted on the first sprocket and the second sprocket, and the drive motor is connected to the first sprocket and the second sprocket through the gear box.

[0006] Furthermore, the difference between the stroke of the first sprocket and the stroke of the second sprocket is slightly greater than the length of the C-shaped steel flange baffle.

[0007] Furthermore, the support transfer device includes a support tray and a rotating mechanism. The support tray supports the C-shaped steel with the opening facing downward side by side. The rotating mechanism is connected to the support tray to drive the support tray to rotate.

[0008] Furthermore, the flipping device includes a flipping mechanism and a hooking and pulling mechanism. The flipping mechanism pushes the C-shaped steel upward so that the C-shaped steel is tilted in the width direction of the C-shaped steel. The hooking and pulling mechanism rotates to hook one side flange of the C-shaped steel so that the tilted C-shaped steel flips under the action of inertia. After flipping, the hooking and pulling mechanism rotates so that the opening of the C-shaped steel faces downward.

[0009] Furthermore, the flipping mechanism includes a support seat, a flipping cylinder and a push rod. The flipping cylinder is movably mounted on the support seat and is located in the middle of the width of the C-shaped steel. The flipping cylinder is connected to the push rod.

[0010] Furthermore, the hooking and pulling mechanism includes a hooking and pulling cylinder, a hooking and rotating cylinder, a pull rod and a hook head. The hooking and pulling cylinder and the hooking and rotating cylinder are respectively connected to the pull rod. The hook head is connected to the pull rod. The hook head hooks one side flange of the C-shaped steel.

[0011] A C-shaped steel palletizing method, the method comprising:

[0012] Place the C-shaped steel on the conveying device with the opening of the C-shaped steel facing upwards, and convey the C-shaped steel to the conveying device. The conveying device conveys the C-shaped steel to the stacking platform, and the pushing device pushes the C-shaped steel on the stacking platform to form the first row of C-shaped steel;

[0013] The stacking platform descends and the supporting transfer device rotates to above the first row of C-shaped steel;

[0014] Continue to place C-shaped steel on the conveying device, the turning device turns the C-shaped steel in turn, so that the opening of the C-shaped steel faces downward, and the C-shaped steel is arranged side by side on the supporting transfer device, and the pushing device pushes the C-shaped steel on the supporting transfer device to form a second row of C-shaped steel;

[0015] The support transfer device returns to its original position, and under the action of gravity, the second row of C-shaped steels falls into the first row of C-shaped steels and interlocks with the first row of C-shaped steels in a state of facing each other to form a stacked structure;

[0016] The pushing device pushes the stacking structure to clamp the entire structure to form a tight stacking structure.

[0017] Furthermore, when the driving motor rotates forward, the conveying chain conveys the C-shaped steel with the opening facing upward, and when the driving motor rotates reversely, the conveying chain conveys the C-shaped steel with the opening facing downward.

[0018] Furthermore, the flipping cylinder drives the push rod to push the C-shaped steel upward, so that the C-shaped steel is tilted in the width direction of the C-shaped steel. At the same time, the hook-rotating cylinder drives the pull rod to rotate to drive the hook to rotate to the work surface supporting the transfer device. The hook-pulling cylinder drives the pull rod to pull down to drive the hook head to hook one side flange of the C-shaped steel, so that the tilted C-shaped steel flips under the action of inertia. When the hook descends to the work surface, the hook-rotating cylinder drives the pull rod to rotate to drive the hook head to rotate out of the work surface, so that the C-shaped steel opening is downward.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention can transport a whole row of C-shaped steels, flip the C-shaped steels so that the opening of the C-shaped steels is downward, and then the C-shaped steels are buckled upside down on the C-shaped steels with the openings upward, so that the upper and lower rows of C-shaped steels form a stacking structure with high stacking efficiency. Then, the stacking structure is pushed tightly to clamp the whole stacking structure to form a tight stacking structure with a strong structure, which is convenient for packaging, storage and transportation.

[0021] 2. The C-shaped steel is pushed upward by the flipping mechanism, so that the C-shaped steel is tilted in the width direction of the C-shaped steel. At the same time, the hooking mechanism hooks one side flange of the C-shaped steel, so that the tilted C-shaped steel is flipped under the action of inertia, so that the C-shaped steel opening is downward. The C-shaped steel with the opening downward is supported by the support plates side by side, and then the support plates are driven to rotate by the rotating mechanism. Under the action of gravity, the second row of C-shaped steels falls into the first row of C-shaped steels, and they are interlocked with each other in a state of facing each other, forming a stacked structure that takes up little space.

[0022] 3. The C-shaped steel is transported by the first sprocket and the second sprocket, and the difference between the stroke of the first sprocket and the stroke of the second sprocket is slightly greater than the length of the C-shaped steel flange baffle, so that the C-shaped steel with the downward opening is accurately buckled onto the C-shaped steel with the upward opening, realizing automatic stacking;

[0023] 4. It can stack multiple layers up and down, and can stack multiple groups of C-shaped steel groups together flatly, tightly and neatly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the C-shaped steel structure of the present invention;

[0025] Figure 2 This is a schematic structural diagram of the C-shaped steel palletizing equipment of the present invention;

[0026] Figure 3 This is a schematic diagram of conveying the second row of C-shaped steel in the C-shaped steel stacking equipment structure of the present invention;

[0027] Figure 4 This is another structural diagram of the C-shaped steel palletizing equipment of the present invention;

[0028] Figure 5This is another structural schematic diagram of the C-shaped steel stacking equipment of the present invention;

[0029] Figure 6 This is another structural schematic diagram of the C-shaped steel stacking equipment of the present invention;

[0030] Figure 7 This is a schematic structural diagram of the conveying device in the C-shaped steel palletizing equipment of the present invention;

[0031] Figure 8 This is another structural diagram of the conveying device in the C-shaped steel palletizing equipment of the present invention;

[0032] Figure 9 This is a flow chart of the C-shaped steel palletizing method of the present invention.

[0033] In the figure, 100-C steel; 101-base plate; 102-flange; 1-stacking platform; 11-forklift mast; 12-supporting fork; 13-screw; 14-baffle; 2-conveying device; 21-telescopic frame; 211-feed end frame; 212-end baffle; 22-support roller; 23-driving rubber roller; 24-guide roller; 25-base frame; 26-moving wheel; 3-conveying device; 31-conveying chain; 311-drag chain plate; 312 -push block; 32-first sprocket; 33-second sprocket; 34-gearbox; 4-turning device; 41-turning mechanism; 411-support seat; 412-turning cylinder; 413-push rod; 42-hooking mechanism; 421-hooking cylinder; 422-hooking cylinder; 423-pull rod; 424-hook head; 5-support transfer device; 51-support pallet; 52-rotating motor; 6-pushing device; 61-pushing cylinder; 62-throwing rod. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figure 1 As shown, the C-shaped steel 100 includes a bottom plate 101, flanges 102 fixed to both sides of the bottom plate 101, and flange baffles 103 are provided on the flanges 102. Figures 2 to 8 As shown, this embodiment provides a C-shaped steel palletizing device, including a stacking platform 1, a conveying device 2, a transmission device 3, a turning device 4, a supporting and transferring device 5, and a pushing device 6.

[0036] The stacking platform 1 can be raised and lowered. In this embodiment, the stacking platform 1 includes a forklift mast 11, a supporting fork 12, a lifting screw 13, and a motor. The supporting fork 12 is arranged on the forklift mast 11, the motor is connected to the screw 13, and the supporting fork 12 is connected to the screw 13. The screw 13 drives the supporting fork 12 to rise and fall in the forklift mast 11;

[0037] The support and transfer device 5 is used to support and transfer the C-shaped steel 100 with the opening downward, so that it is inverted on the C-shaped steel 100 with the opening upward to form a stacking structure. The support and transfer device 5 includes a support plate 51 and a rotating motor 52. The support plates 51 support the C-shaped steel 100 with the opening downward side by side. The rotating motor 52 is connected to the support plates 51 to drive the support plates 51 to rotate;

[0038] The pushing device 6 includes a pushing motor 61 and a push rod 62. The pushing motor 61 is connected to the push rod 62, and the push rod 62 acts on the C-shaped steel 100.

[0039] The conveying device 2 is used to convey the C-shaped steel 100 to the conveying device 3. In this embodiment, the conveying device 2 includes a telescopic frame 21, one end of the telescopic frame 21 is a feed end frame 211, and the other end is a head stop frame 212. The head stop frame 212 is provided with a sensor, and the telescopic frame 21 is provided with a roller 22, a driving rubber roller 23 and a guide wheel 24. The driving rubber roller 23 is a constantly rotating driving rubber roller. When the C-shaped steel 100 enters from the feed end frame 211, it is supported by the roller 22 and enters the driving rubber roller 23 to The guide wheel 24 continues to transport the C-shaped steel 100 forward until the sensor on the end stopper senses the end of the C-shaped steel 100. The telescopic frame 21 is mainly set to extend and retract the length of the C-shaped steel 100. Therefore, a base frame 25 and a moving wheel 26 are set at the bottom of the telescopic frame 21. The stacking platform 1 is moved on the base frame 25 according to the length of the C-shaped steel 100 by the moving wheel 26 to transport the C-shaped steel 100. When the sensor on the end stopper 212 senses the end of the C-shaped steel 100, the entire C-shaped steel 100 is transported.

[0040] The conveying device 3 is used to convey the C-shaped steel 100 to the stacking platform 1. The conveying device 3 includes a conveying chain 31, a first sprocket 32, a second sprocket 33, a gear box 34, and a driving motor. The conveying chain 31 is sleeved on the first sprocket 32 ​​and the second sprocket 33. The driving motor is connected to the first sprocket 32 ​​and the second sprocket 33 through the gear box 34. A drag chain plate 311 is provided on the conveying chain 31 to support the C-shaped steel 100. A push block 312 is also provided to push the C-shaped steel 100. The gear box 34 It is a forward and reverse angle gearbox, which can drive the first sprocket 32 ​​to rotate forward, or drive the second sprocket 33 to rotate reversely. When the driving motor rotates forward, the conveying chain 31 conveys the C-shaped steel 100 with the opening facing upward. When the driving motor rotates reversely, the conveying chain 31 conveys the C-shaped steel 100 with the opening facing downward. The difference between the stroke of the first sprocket 32 ​​and the stroke of the second sprocket 33 is slightly greater than the length of the C-shaped steel flange baffle 103, which can be the sum of the length of the C-shaped steel flange baffle 103 and 2 cm. In this embodiment, it is set to 5 cm, so that the opening facing downward is The C-shaped steel 100 is accurately buckled into the C-shaped steel 100 with the opening facing upward. When the sensor on the end stop frame 212 senses the end of the C-shaped steel 100, the drive motor rotates forward, and the first sprocket 32 ​​works one circle to transport the C-shaped steel 100 to the stacking platform 1, and a baffle 14 is set on the stacking platform 1. The baffle 14 is against the C-shaped steel 100. In this embodiment, the baffle 14 can be made of a steel pipe, which is movably connected to the stacking platform 1 and can be easily installed or disassembled. After the set number of bars is reached, the pushing motor 61 moves to the position corresponding to the first row The C-shaped steels are of the same height. The push rod 62 acts on the C-shaped steel 100 to push the set number of C-shaped steels in parallel to form the first row of C-shaped steels. In order to avoid hitting the first sprocket 32, the conveyor chain 31 then conveys the first row of C-shaped steels. The conveying distance is the width of the push block 312, which is about 5 cm. The supporting fork 12 drops to a preset height, which is slightly greater than the height of the C-shaped steel 100, generally the sum of the height of the C-shaped steel 100 and the height of the support plate 51. The rotating motor 52 drives the support plate 51 to rotate above the first row of C-shaped steels.

[0041] The flipping device 4 is used to flip the C-shaped steel 100 so that the opening of the C-shaped steel 100 is downward. The flipping device 4 includes a flipping mechanism 41 and a hooking mechanism 42. The flipping mechanism 41 pushes the C-shaped steel 100 upward so that the C-shaped steel 100 is tilted in the width direction of the C-shaped steel 100. The hooking mechanism 42 rotates to hook one side flange of the C-shaped steel 100 so that the tilted C-shaped steel 100 flips under the action of inertia. After flipping, the hooking mechanism 42 rotates so that the opening of the C-shaped steel 100 is downward. The flipping mechanism 41 includes a support seat 411, a flipping cylinder 412 and a push rod 413. The flipping cylinder 412 is movably installed on the support seat 411 and is located in the middle of the width of the C-shaped steel 100. The flipping cylinder 412 is connected to the push rod 413, and the hooking and pulling mechanism 42 includes a hooking and pulling cylinder 421, a hooking and rotating cylinder 422, a pull rod 423 and a hook head 424. The hooking and pulling cylinder 421 and the hooking and rotating cylinder 422 are respectively connected to the pull rod 423, and the hook head 424 is connected to the pull rod 423. The hook head 424 hooks one side flange of the C-shaped steel 100. When the C-shaped steel 100 enters from the feed end frame 211, it is supported by the roller 22 and enters the driving rubber roller 23 and the guide wheel 24 to continue to be transported forward. When the sensor on the head stop frame 212 senses the end of the C-shaped steel 100, the flipping cylinder 412 drives the push rod 413 to push the C-shaped steel 100 upward, so that the C-shaped steel 100 is inclined in the width direction of the C-shaped steel. When the hook 423 is in the tilted state, the hook cylinder 422 drives the pull rod 423 to rotate to drive the hook 423 to rotate to the working table of the support transfer device 5 (that is, the support plate 51), and the hook-pull cylinder 421 drives the pull rod 423 to pull down to drive the hook head 424 to hook the side flange 103 of the C-shaped steel 100, so that the C-shaped steel in the inclined state turns over under the action of inertia. When the hook 423 descends to the support plate 51, the hook-pull cylinder 422 instantly drives the pull rod 423 to rotate to drive the hook head 424 to rotate out of the support plate 51, so that the C-shaped steel opening is downward, and the drive motor is reversed. The second sprocket 33 works for one circle to transport the C-shaped steel 100 to the stacking platform 1. After reaching the set number of strips, the pushing motor 61 moves to the same height as the second row of C-shaped steels, and the push rod 62 acts On the C-shaped steel 100, a set number of C-shaped steels are pushed in parallel to form a second row of C-shaped steels. In order to avoid hitting the first sprocket 32, the conveying chain 31 then conveys the second row of C-shaped steels. The conveying distance is the width of the push block 312, which is about 5 cm. The rotating motor 52 drives the support plate 51 to return to its original position. Under the action of gravity, the second row of C-shaped steels on the support plate 51 falls into the first row of C-shaped steels and is engaged with the first row of C-shaped steels in a state of facing openings to form a stacking structure. The difference between the stroke of the first sprocket 32 ​​and the stroke of the second sprocket 33 is the sum of the length of the C-shaped steel flange baffle 103 and 20 mm, so that the C-shaped steel 100 with the opening downward is accurately buckled into the C-shaped steel 100 with the opening upward. The push rod 62 acts on the stacking structure.The stacking structure is pushed tightly to clamp the entire structure to form a compact stacking structure, and the support fork 12 continues to descend to a preset height.

[0042] like Figure 9 As shown, this embodiment also provides a C-shaped steel palletizing method, which includes the following steps:

[0043] S1: Place the C-shaped steel on the conveying device with the opening of the C-shaped steel facing upwards, and convey the C-shaped steel to the conveying device. The conveying device conveys the C-shaped steel to the stacking platform, and the pushing device pushes the C-shaped steel on the stacking platform to form the first row of C-shaped steel;

[0044] S2: The stacking platform descends and the supporting transfer device rotates to above the first row of C-shaped steel;

[0045] S3: Continue to place C-shaped steel on the conveying device, and the turning device turns the C-shaped steel in turn so that the opening of the C-shaped steel faces downward and is arranged side by side on the supporting transfer device. The pushing device pushes the C-shaped steel on the supporting transfer device to form a second row of C-shaped steel;

[0046] S4: The support transfer device returns to its original position, and under the action of gravity, the second row of C-shaped steels falls into the first row of C-shaped steels, and interlocks with the first row of C-shaped steels in a state of facing each other, forming a stacked structure;

[0047] S5: The pushing device pushes the stacking structure to clamp the entire structure to form a tight stacking structure.

[0048] Specifically, the C-shaped steel is placed on the conveying device 2, with the opening of the C-shaped steel facing upward. After the C-shaped steel 100 enters from the feed end frame 211, it is supported by the roller 22 and enters the driving rubber roller 23 and the guide wheel 24 to continue to be conveyed forward. When the sensor on the head stop frame 212 senses the end of the C-shaped steel 100, the drive motor rotates forward, and the first sprocket 32 ​​works one circle to convey the C-shaped steel 100 to the stacking platform 1. After reaching the set number of strips, the top rod 62 acts on the C-shaped steel 100 to push the set number of C-shaped steels in parallel to form the first row of C-shaped steels; the support fork 12 is lowered The preset height is lowered, and the rotating motor 52 drives the supporting plate 51 to rotate above the first row of C-shaped steels; the C-shaped steels continue to be placed on the conveying device 2. After the C-shaped steel 100 enters from the feed end frame 211, it is supported by the roller 22 and enters the driving rubber roller 23 and the guide wheel 24 to continue to be conveyed forward. When the sensor on the head stop frame 212 senses the end of the C-shaped steel 100, the flip cylinder 412 drives the push rod 413 to push the C-shaped steel 100 upward, so that the C-shaped steel 100 is tilted in the width direction of the C-shaped steel. At the same time, the hook cylinder 422 drives the pull rod 423 to rotate The hook 423 is rotated to the working surface of the supporting transfer device 5 (i.e., the supporting plate 51), and the hook-pulling cylinder 421 drives the pull rod 423 to pull down to drive the hook head 424 to hook the side flange 103 of the C-shaped steel 100, so that the C-shaped steel in the inclined state is turned over under the action of inertia. When the hook 423 descends to the supporting plate 51, the hook-rotating cylinder 422 instantly drives the pull rod 423 to rotate to drive the hook head 424 to rotate out of the supporting plate 51, so that the C-shaped steel opening is downward, the driving motor is reversed, and the second sprocket 33 works one circle to move the C-shaped steel 100 to the stacking After the table 1 is transported and the set number of C-shaped steels is reached, the push rod 62 acts on the C-shaped steel 100, pushing the set number of C-shaped steels in parallel to form a second row of C-shaped steels, and the rotating motor 52 drives the support pallet 51 to return to its position. Under the action of gravity, the second row of C-shaped steels on the support pallet 51 falls into the first row of C-shaped steels, and is interlocked with the first row of C-shaped steels in a state of facing openings to form a stacking structure. The push rod 62 acts on the stacking structure, pushing the stacking structure tightly to clamp it as a whole to form a tight stacking structure, and the supporting fork 12 continues to descend to the preset height, and so on.

[0049] The present invention can transport a whole row of C-shaped steels, flip the C-shaped steels so that the opening of the C-shaped steels faces downwards, and then the C-shaped steels are buckled up on the C-shaped steels with the openings facing upwards, so that the upper and lower rows of C-shaped steels form a stacking structure with high stacking efficiency. Then the stacking structure is pushed tightly so that the whole structure is clamped to form a tight stacking structure with a strong structure, which is convenient for packaging, storage and transportation. The C-shaped steels are pushed upwards by the flipping mechanism so that the C-shaped steels are tilted in the width direction of the C-shaped steels, and at the same time, one side flange of the C-shaped steels is hooked by the hooking mechanism so that the tilted C-shaped steels are flipped under the action of inertia so that the opening of the C-shaped steels faces downwards, and the stacking structure is supported by the support. The support plates support the C-shaped steel with the opening facing downward side by side, and then the supporting support plates are driven to rotate by the rotating mechanism. Under the action of gravity, the second row of C-shaped steels falls into the first row of C-shaped steels, and they are interlocked with each other in a state of facing each other to form a stacking structure, which occupies a small space; the C-shaped steels are transported by the first sprocket and the second sprocket, and the difference between the stroke of the first sprocket and the stroke of the second sprocket is slightly greater than the length of the C-shaped steel flange baffle, so that the C-shaped steel with the opening facing downward is accurately interlocked with the C-shaped steel with the opening facing upward, realizing automatic stacking; it can stack multiple layers up and down, and can stack multiple groups of C-shaped steels together flatly, tightly and neatly.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A C-shaped steel stacking device, comprising a stacking platform, the stacking platform being capable of being raised and lowered, characterized in that: It also includes a conveying device, a conveying device, a flipping device, a supporting and transferring device, and a pushing device. The conveying device is used to convey the C-shaped steel to the conveying device, the conveying device is used to convey the C-shaped steel to the stacking platform, and the flipping device is used to flip the C-shaped steel so that the opening of the C-shaped steel faces downward. The conveying device includes a conveying chain, a first sprocket, a second sprocket, a gear box and a driving motor. The conveying chain is sleeved on the first sprocket and the second sprocket, and the driving motor is connected to the first sprocket and the second sprocket through the gear box. A drag chain plate is provided on the conveying chain to support the C-shaped steel, and a push block is provided to push the C-shaped steel. The gear box is a forward and reverse angle gear box, which drives the first sprocket to rotate forward, or drives the second sprocket to reverse. When the driving motor rotates forward, the conveying chain conveys the opening The C-shaped steel has its opening upward. When the driving motor reverses, the conveyor chain transports the C-shaped steel with its opening downward. The difference between the stroke of the first sprocket and the stroke of the second sprocket is slightly greater than the length of the C-shaped steel flange baffle. The flipping device includes a flipping mechanism and a hooking mechanism. The flipping mechanism pushes the C-shaped steel upward so that the C-shaped steel is tilted in the width direction of the C-shaped steel. The hooking mechanism rotates to hook one side flange of the C-shaped steel so that the tilted C-shaped steel flips under the action of inertia. After flipping, the hooking mechanism rotates to make the C-shaped steel open downward. The support and transfer device is used to support and transport the C-shaped steel with its opening downward so that it is inverted on the C-shaped steel with its opening upward to form a stacking structure. The pushing device is used to push the stacking structure so that it is clamped as a whole to form a tight stacking structure.

2. The C-shaped steel palletizing equipment according to claim 1, characterized in that: The support transfer device includes a support plate and a rotating mechanism. The support plates support the C-shaped steel with the opening downward side by side. The rotating mechanism is connected to the support plates to drive the support plates to rotate.

3. The C-shaped steel palletizing equipment according to claim 1, characterized in that: The flipping mechanism includes a support seat, a flipping cylinder and a push rod. The flipping cylinder is movably installed on the support seat and is located in the middle of the width of the C-shaped steel. The flipping cylinder is connected to the push rod.

4. The C-shaped steel palletizing equipment according to claim 1, characterized in that: The hooking and pulling mechanism includes a hooking and pulling cylinder, a hooking and rotating cylinder, a pull rod and a hook head. The hooking and pulling cylinder and the hooking and rotating cylinder are respectively connected to the pull rod. The hook head is connected to the pull rod. The hook head hooks one side flange of the C-shaped steel.

5. A palletizing method for the C-shaped steel palletizing equipment according to any one of claims 1 to 4, characterized in that: The method comprises: Place the C-shaped steel on the conveying device with the opening of the C-shaped steel facing upwards, and convey the C-shaped steel to the conveying device. The conveying device conveys the C-shaped steel to the stacking platform, and the pushing device pushes the C-shaped steel on the stacking platform to form the first row of C-shaped steel; The stacking platform descends and the supporting transfer device rotates to above the first row of C-shaped steel; Continue to place C-shaped steel on the conveying device, the turning device turns the C-shaped steel in turn, so that the opening of the C-shaped steel faces downward, and the C-shaped steel is arranged side by side on the supporting transfer device, and the pushing device pushes the C-shaped steel on the supporting transfer device to form a second row of C-shaped steel; The support transfer device returns to its original position, and under the action of gravity, the second row of C-shaped steels falls into the first row of C-shaped steels and interlocks with the first row of C-shaped steels in a state of facing each other to form a stacked structure; The pushing device pushes the stacking structure to clamp the entire structure to form a tight stacking structure.

6. The stacking method of C-shaped steel stacking equipment according to claim 5, characterized in that: When the driving motor rotates forward, the conveying chain conveys the C-shaped steel with the opening facing upward, and when the driving motor rotates reversely, the conveying chain conveys the C-shaped steel with the opening facing downward.

7. The palletizing method of C-shaped steel palletizing equipment according to claim 5, characterized in that: The flipping cylinder drives the push rod to push the C-shaped steel upward, so that the C-shaped steel is tilted in the width direction of the C-shaped steel. At the same time, the hook-rotating cylinder drives the pull rod to rotate to drive the hook to rotate to the work surface supporting the transfer device. The hook-pulling cylinder drives the pull rod to pull down to drive the hook head to hook one side flange of the C-shaped steel, so that the tilted C-shaped steel flips under the action of inertia. When the hook descends to the work surface, the hook-rotating cylinder drives the pull rod to rotate to drive the hook head to rotate out of the work surface, so that the C-shaped steel opening faces downward.

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