Automatic pipe storage and feeding rack

Abstract

The application provides a kind of automatic pipe storage feeding frame, relating to pipe feeding equipment technical field, including feeding frame, material supporting device, pipe separating device and feeding device.Compared with prior art, the storage frame filled with pipes is placed on the support column at the bottom, the storage frame is lifted by the material supporting device to tilt the bottom of the feeding platform, and the pipes in the storage frame are driven to enter the bottom of the feeding platform, the pipe separating device is vertically arranged on the feeding frame, the pipes entering the bottom of the feeding platform are sent to the top of the feeding platform, the feeding device is vertically arranged on the feeding frame, the pipes on the feeding platform are sent to the pipe outlet device for movement, the automatic continuous feeding of pipes into the pipe outlet device is realized, the continuous distance cutting or rotary polishing of the pipes moved by the pipe outlet device can be realized, which greatly reduces the labor intensity, saves labor cost, improves operation efficiency and realizes the automatic feeding of pipes.

Description

Technical Field

[0001] This invention relates to the field of pipe feeding equipment technology, specifically to an automatic pipe storage and feeding rack. Background Technology

[0002] Currently, pipes are widely used in my country's manufacturing industry, so the cutting and polishing of pipes is an essential and important process.

[0003] However, most pipe processing equipment lacks a matching automatic pipe feeding device and often uses manual feeding. Since a long section of steel pipe is often heavy, manual feeding results in low automation, requires a lot of effort from workers, leads to high work intensity and low operating efficiency, affects overall processing efficiency, and cannot meet production needs. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic pipe storage and feeding rack, which aims to solve the problems of high workload and low operating efficiency caused by manual pipe feeding in the prior art.

[0005] To achieve the above objectives, the present invention provides an automatic pipe storage and feeding rack, comprising: a feeding frame, wherein a feeding platform is provided at the top of the feeding frame, the feeding platform having a stepped height difference; storage frames and pipe dispensing devices are provided opposite to each other on both sides of the feeding frame, the storage frames are placed on support columns at their bottom and located on one side of the bottom of the feeding platform, and the pipe dispensing devices are used to move and dispense pipes; and a material supporting device, disposed on the feeding frame, for lifting the storage frames and tilting them towards the bottom of the feeding platform, and The pipes in the storage box are driven into the bottom of the feeding platform; the branch pipe device is vertically and vertically mounted on the feeding frame to send the pipes entering the bottom of the feeding platform to the top of the feeding platform; the feeding device is vertically and vertically mounted on the feeding frame and located on one side of the top of the feeding platform to send the pipes on the feeding platform into the pipe outlet device; the bottom and top of the feeding platform are both inclined surfaces sloping downwards towards the pipe outlet device, and the top of the feeding platform is provided with a pipe blocking device.

[0006] Furthermore, the storage frame has notches for insertion on both sides; the material support device is arranged opposite each other along the length of the feeding frame, and the material support device includes a mounting frame, a hook arm, a hook arm drive mechanism, and a telescopic arm. One end of the hook arm is hinged in the mounting frame to form a rotation fulcrum, and the hook arm drive mechanism drives the other end of the hook arm to rotate around the rotation fulcrum and extend out of the mounting frame to lift the storage frame from the bottom; the telescopic arm is vertically slidably connected to one side of the mounting frame through a telescopic arm screw jack, and is used to insert and lift the pipe in the storage frame into the bottom of the feeding platform through the notch.

[0007] Furthermore, the hook arm drive mechanism includes a column, a connecting rod, and a hook arm screw jack. A hinge seat is slidably provided on the column. One end of the connecting rod is hinged to the hinge seat, and the other end of the connecting rod is connected to the middle of the hook arm. A nut seat on the hook arm screw jack is connected to one side of the hinge seat.

[0008] Furthermore, it also includes a first drive motor, which is connected to the hook arm screw jack via a transmission shaft.

[0009] Furthermore, the telescopic boom includes a guide slide mounting base, a sliding arm, and a sliding arm motor. The guide slide mounting base is connected to a nut seat on the telescopic boom screw jack. A slider is fixedly mounted on the guide slide mounting base. The sliding arm is slidably connected to the slider via a guide rail. A rack is provided on one side of the sliding arm. The sliding arm motor is located on one side of the guide slide mounting base. The output shaft end of the sliding arm motor is provided with a gear that meshes with the rack.

[0010] Furthermore, it also includes a second drive motor, which is connected to the telescopic boom screw jack via a transmission shaft.

[0011] Furthermore, the pipe-splitting device includes two first connecting pads, a pipe-jacking frame, two first jacking rods, a pipe-jacking drive shaft, and a pipe-jacking drive motor. The two first connecting pads are arranged opposite each other along the length of the feeding frame and are located between the material-supporting devices. The two sides of the pipe-jacking frame are vertically slidably connected to the first connecting pads. The upper ends of the two first jacking rods are respectively hinged to the two sides of the pipe-jacking frame. The lower ends of the two first jacking rods are hinged to connecting cranks. The lower ends of the connecting cranks are fastened to the pipe-jacking drive shaft. The pipe-jacking drive shaft is set at the bottom of the feeding frame through a bearing support. The pipe-jacking drive motor is driven by the pipe-jacking drive shaft through a gear chain.

[0012] Furthermore, it also includes two second connecting pads, two top plates, and two second push rods. The two second connecting pads are arranged opposite each other along the length of the feeding frame and are located on both sides of the two first connecting pads. The two top plates are vertically slidably connected to the two second connecting pads. The upper ends of the two second push rods are respectively hinged to the two top plates. The lower ends of the two second push rods are hinged to the connecting cranks. The lower end of the connecting cranks is provided with a secondary drive shaft. One end of the secondary drive shaft is hinged to the lower end of the first push rod through the connecting crank.

[0013] Furthermore, the upper ends of the jacking frame and the two top plates are both L-shaped with inclined surfaces.

[0014] Furthermore, the feeding device includes a slanted hook and a feeding drive motor. There are at least two slanted hooks, which are arranged along the length of the feeding frame. The two slanted hooks are vertically slidably arranged on the feeding frame via guide rail sliders. The feeding drive motor is connected to two feeding transmission shafts via a reducer. The transmission shafts are driven by the slanted hooks via a transmission belt and a pulley.

[0015] The present invention provides an automatic pipe storage and feeding rack. Compared with the prior art, a storage box filled with pipes is placed on a support column at its bottom. A material lifting device lifts the storage box away from the support column and tilts it to the bottom of the feeding platform, thus driving the pipes in the storage box into the bottom of the feeding platform. A pipe distribution device is vertically and vertically mounted on the feeding frame to send the pipes that have entered the bottom of the feeding platform to the top of the feeding platform. The feeding device is also vertically and vertically mounted on the feeding frame to send the pipes on the feeding platform into the pipe discharge device for moving and discharging. This realizes automatic and continuous feeding of pipes into the pipe discharge device. The pipes moved out by the pipe discharge device can be continuously cut at fixed distances or rotated and polished, which greatly reduces the labor intensity of manual labor, saves labor costs, improves operating efficiency, and realizes automatic feeding of pipes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the automatic pipe storage and feeding rack of the present invention;

[0017] Figure 2 This is a side view of the automatic pipe storage and feeding rack of the present invention.

[0018] Figure 3 This is a top view of the automatic pipe storage and feeding rack of the present invention;

[0019] Figure 4 This is a schematic diagram of the automatic pipe storage and feeding rack of the present invention with the storage frame removed;

[0020] Figure 5This is a schematic diagram of the material support device in this invention;

[0021] Figure 6 This is a schematic diagram of the pipe distribution device in this invention;

[0022] Figure 7 This is a schematic diagram of the feeding device in this invention.

[0023] Explanation of reference numerals in the attached figures

[0024] 10-Feeding frame; 11-Feeding platform; 111-Banding device; 12-Storage frame; 121-Notch; 13-Outlet device; 14-Support column;

[0025] 20-Material support device; 21-Mounting frame; 22-Hook arm; 23-Hook arm drive mechanism; 231-Column; 232-Connecting rod; 233-Hook arm screw jack; 234-Hinge seat; 235-First drive motor; 24-Telescopic arm; 241-Telescopic arm screw jack; 242-Guide mounting seat; 243-Sliding arm; 244-Sliding arm motor; 245-Rack; 246-Second drive motor; 25-Rotation fulcrum;

[0026] 30-Piping device; 31-First connecting pad; 32-Pipe jacking frame; 33-First jacking rod; 34-Pipe jacking drive shaft; 35-Pipe jacking drive motor; 36-Connecting crank; 37-Second connecting pad; 38-Top plate; 39-Second jacking rod; 391-Secondary drive shaft;

[0027] 40 - Feeding device; 41 - Inclined hook; 42 - Feeding drive motor; 43 - Feeding transmission shaft. Detailed Implementation

[0028] The present invention will be described in detail below with reference to specific embodiments.

[0029] In this invention, when directional terms appear, they are used to facilitate the description of the invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of protection of the invention.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms such as "set in," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] like Figures 1 to 4As shown, an automatic pipe storage and feeding rack includes a feeding frame 10, a material support device 20, a pipe distribution device 30, and a feeding device 40.

[0032] The feeding frame 10 is a frame structure formed by welding square tubes. A feeding platform 11 is provided on the top of the feeding frame, and the feeding platform 11 has a stepped height difference.

[0033] The feeding frame 10 has a storage frame 12 and a pipe outlet device 13 on opposite sides. The storage frame 12 is placed on the support column 14 at its bottom and is located on one side of the bottom of the feeding platform 11. It is used to stack pipes in the storage frame 12 for storage, so as to facilitate the subsequent continuous branching and feeding of pipes in the storage frame 12.

[0034] The tube discharge device 13 can be installed on the feeding frame 10 or placed separately on one side of the feeding frame 10. The tube discharge device 13 is driven by rubber wheels and is used to move the tube axially for discharge.

[0035] The material support device 20 is installed on the feeding frame 10 and is used to lift the storage box 12 and tilt it to the bottom of the feeding platform 11, and drive the pipes in the storage box 12 into the bottom of the feeding platform 11.

[0036] The pipe feeding device 30 can be vertically and vertically installed on the feeding frame 10 to feed the pipes entering the bottom of the feeding platform 11 to the top of the feeding platform 11 and to feed the pipes at the bottom of the feeding platform 11 into separate pipes.

[0037] The feeding device 40 can be vertically lifted and installed on the feeding frame 10 and located on the top side of the feeding platform 11. It is used to feed the pipes on the feeding platform 11 into the pipe outlet device 13 to realize automated feeding without manual intervention.

[0038] The bottom and top of the feeding platform 11 are both inclined surfaces sloping downwards towards the pipe outlet device 13, so that the pipes entering the bottom and top of the feeding platform 11 can roll and be limited along the inclined surfaces to prevent the pipes from falling off the feeding platform 11. The top of the feeding platform 11 is provided with a pipe-blocking device 111, which is a telescopic and adjustable baffle. When used in conjunction with the feeding device 40, it prevents the pipes at the top of the feeding platform 11 from falling off the feeding platform 11.

[0039] In practice, the storage frame 12 filled with pipes is placed on the support column 14 at its bottom. The material lifting device 20 lifts the storage frame 12 away from the support column 14 and tilts it to the bottom of the feeding platform 11, thus driving the pipes in the storage frame 12 into the bottom of the feeding platform 11. The pipe distribution device 30 is vertically lifted and lowered on the feeding frame 10 to send the pipes that have entered the bottom of the feeding platform 11 to the top of the feeding platform 11. The feeding device 40 is vertically lifted and lowered on the feeding frame 10 to send the pipes on the feeding platform 11 into the pipe discharge device 13 for moving and discharging. This realizes automatic and continuous feeding of pipes into the pipe discharge device 13. The pipes that move out of the pipe discharge device 13 can be continuously cut at fixed distances or rotated and polished, which greatly reduces the labor intensity of manual labor, saves labor costs, improves operating efficiency, and realizes automatic feeding of pipes.

[0040] In addition, to further improve efficiency and achieve automated production, an AGV (Automated Guided Vehicle) is also included. The AGV can move through the space between the opposing support columns 14. The AGV can lift the storage box 12 filled with pipes, enter the space between the opposing support columns 14, place the storage box 12 on the support columns 14, and then move it out, thus completing the feeding of the storage box 12.

[0041] like Figures 1 to 5 As shown, in this embodiment, the storage frame 12 has notches 121 for insertion on both sides; the material support device 20 is arranged opposite each other in the length direction of the feeding frame 10. The material support device 20 includes a mounting frame 21, a hook arm 22, a hook arm drive mechanism 23, and a telescopic arm 24. One end of the hook arm 22 is hinged in the mounting frame 21 to form a rotation fulcrum 25. The hook arm drive mechanism 23 drives the other end of the hook arm 22 to rotate around the rotation fulcrum 25 and extend out of the mounting frame 21 to lift and raise the storage frame 12 from the bottom, so that one side of the storage frame 12 is tilted to the bottom of the feeding platform 11. The telescopic arm 24 is vertically slidably connected to one side of the mounting frame 21 through the telescopic arm screw jack 241, and is used to insert from the bottom of the notch 121 to lift the pipes at the bottom of the storage frame 12 upward, so that the uppermost pipes enter the bottom of the feeding platform 11 for feeding.

[0042] In this embodiment, the hook arm drive mechanism 23 includes a column 231, a connecting rod 232, and a hook arm screw jack 233. A hinge seat 234 is slidably mounted on the column 231. One end of the connecting rod 232 is hinged to the hinge seat 234, and the other end of the connecting rod 232 is connected to the middle of the hook arm 22. A nut seat on the hook arm screw jack 233 is connected to one side of the hinge seat 234. The hook arm 22 is an L-shaped hook arm 22.

[0043] In practical implementation, the hook arm screw jack 233 is connected to the hinge seat 234 through the nut seat, which drives the hinge seat 234 to slide up and down on the column 231. When the hinge seat 234 slides down, the hook arm 22 is rotated and pushed out around the pivot point 25 through the connecting rod 232, so that the hook arm 22 can lift the storage frame 12 from the bottom of the storage frame 12 and make it tilted.

[0044] In this embodiment, a first drive motor 235 is also included. The first drive motor 235 is connected to the hook arm screw jack 233 via a transmission shaft, so that the hook arm screw jacks 233 in the two material support devices 20 can be driven to move synchronously by one first drive motor 235.

[0045] In this embodiment, the telescopic boom 24 includes a guide slide mounting base 242, a sliding arm 243, and a sliding arm motor 244. The guide slide mounting base 242 is connected to the nut seat on the telescopic boom screw jack 241. A slider is fixedly mounted on the guide slide mounting base 242. The sliding arm 243 is slidably connected to the slider via a guide rail. A rack 245 is provided on one side of the sliding arm 243. The sliding arm motor 244 is located on one side of the guide slide mounting base 242. The output shaft end of the sliding arm motor 244 is provided with a gear that meshes with the rack 245.

[0046] In practice, after the hook arm 22 rotates and moves to the bottom of the storage box 12, the sliding arm motor 244 drives the gear, which drives the sliding arm 243 to slide out through the guide rail and slider, inserting it into the bottom of the pipe in the storage box 12 through the notch 121. Then, the sliding arm 243 and the hook arm 22 lift the storage box 12 in sync. After the storage box 12 is lifted to the preset position, the sliding arm 243 screw jack intermittently drives the pipe in the storage box 12 to rise and enter the bottom of the loading platform 11.

[0047] In this embodiment, a second drive motor 246 is also included. The second drive motor 246 is connected to the telescopic boom 24 lever lift via a transmission shaft, so that the telescopic boom screw lifts 241 in the two material support devices 20 can be driven to move synchronously by one second drive motor 246.

[0048] like Figures 1 to 4 and Figure 6As shown, in this embodiment, the pipe-split device 30 includes two first connecting pads 31, a pipe-jacking frame 32, two first jacking rods 33, a pipe-jacking drive shaft 34, and a pipe-jacking drive motor 35. The two first connecting pads 31 are arranged opposite each other on the length of the feeding frame 10 and are located between the material-supporting devices 20. The two sides of the pipe-jacking frame 32 are vertically slidably connected to the first connecting pads 31. The upper ends of the two first jacking rods 33 are respectively hinged to the two sides of the pipe-jacking frame 32. The lower ends of the two first jacking rods 33 are hinged to connecting cranks 36. The lower ends of the connecting cranks 36 are fastened to the pipe-jacking drive shaft 34. The pipe-jacking drive shaft 34 is set at the bottom of the feeding frame through a bearing support. The pipe-jacking drive motor 35 is driven by the pipe-jacking drive shaft 34 through a gear chain.

[0049] In practice, the jacking drive motor drives the jacking drive shaft 34 to rotate. The upper ends of the two first jacking rods 33 are respectively hinged to the two sides of the jacking frame 32, and the lower ends of the two first jacking rods 33 are hinged to the connecting crank 36 connected to the jacking rod drive shaft. Thus, under the rotation of the jacking rod drive shaft, the jacking frame 32 is driven to move up and down on the first connecting pad 31, thereby sending the pipe at the bottom of the loading platform 11 to the top of the loading platform 11.

[0050] In this embodiment, it also includes two second connecting pads 37, two top plates 38, and two second push rods 39. The two second connecting pads 37 are arranged opposite each other along the length of the feeding frame 10 and are located on both sides of the two first connecting pads 31. The two top plates 38 are vertically slidably connected to the two second connecting pads. The upper ends of the two second push rods 39 are respectively hinged to the two top plates 38. The lower ends of the two second push rods 39 are hinged to connecting cranks 36. The lower end of the connecting cranks 36 is provided with a secondary drive shaft 391. One end of the secondary drive shaft 391 is hinged to the lower end of the first push rod 33 through the connecting cranks 36.

[0051] In practice, the auxiliary drive shaft 391 is hinged to the lower end of the first push rod 33 via the connecting crank 36, so that the second push rod 39 drives the top plate 38 to move synchronously with the pipe jacking frame 32, assisting the pipe jacking frame 32 in lifting and distributing the pipe.

[0052] In this embodiment, the upper ends of the pipe jacking frame 32 and the two top plates 38 are both L-shaped with inclined surfaces, which roll and limit the pipe to prevent it from falling during jacking.

[0053] like Figures 1 to 4 , Figure 7As shown, in this embodiment, the feeding device 40 includes a slanted hook 41 and a feeding drive motor 42. At least two slanted hooks 41 are provided, and the two slanted hooks 41 are arranged in the length direction of the feeding frame 10. The two slanted hooks 41 are vertically slidably arranged on the feeding frame 10 through a guide rail slider. The feeding drive motor 42 is connected to two feeding transmission shafts 43 through a reducer. The transmission shafts and the slanted hooks 41 are driven by a transmission belt and a pulley.

[0054] In practice, after the pipe distribution device 30 feeds the pipe into the top of the feeding platform 11, the foremost pipe rolls along the inclined surface to the position to be picked up, where it is blocked and limited by the pipe blocking device 111. The feeding drive motor 42 drives the inclined hook 41 to move upward, pushing the foremost pipe out into the inclined hook 41. Then, the inclined hook 41 moves downward, feeding the pipe on the inclined hook 41 into the feeding plate on the pipe discharge device 13. The pipe that is fed in rolls along the inclined surface of the feeding plate into the rubber wheel of the pipe discharge device 13 for movement and discharge.

[0055] Where there is no conflict, the above embodiments and features can be combined with each other.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An automatic pipe storage and feeding rack, characterized in that, include: A feeding frame, the top of which is provided with a feeding platform, the feeding platform having a stepped height difference; The feeding frame has a storage box and a pipe discharge device on opposite sides. The storage box is placed on the support column at its bottom and is located on one side of the bottom of the feeding platform. The pipe discharge device is used to move and discharge the pipe. A material support device is installed on the feeding frame to lift the storage box and tilt it towards the bottom of the feeding platform, thereby driving the pipes in the storage box into the bottom of the feeding platform. The storage box has notches for insertion on both sides; the material support device is arranged opposite to each other in the length direction of the feeding frame. The material support device includes a mounting frame, a hook arm, a hook arm drive mechanism and a telescopic arm. One end of the hook arm is hinged in the mounting frame to form a rotation fulcrum. The hook arm drive mechanism drives the other end of the hook arm to rotate around the rotation fulcrum and extend out of the mounting frame to lift the storage box from the bottom. The telescopic boom is vertically slidably connected to one side of the mounting frame via a telescopic boom screw jack, and is used to insert and lift the pipe in the storage box through the notch to enter the bottom of the loading platform; the hook arm is an L-shaped hook arm; The hook arm drive mechanism includes a column, a connecting rod, and a hook arm screw jack. A hinge seat is slidably provided on the column. One end of the connecting rod is hinged to the hinge seat, and the other end of the connecting rod is connected to the middle of the hook arm. A nut seat on the hook arm screw jack is connected to one side of the hinge seat. The pipe distribution device is vertically and vertically mounted on the loading frame to feed the pipes that have entered the bottom of the loading platform to the top of the loading platform. The feeding device is vertically and vertically mounted on the feeding frame and located on the top side of the feeding platform, for feeding the pipes on the feeding platform into the pipe outlet device. The bottom and top of the feeding platform are both inclined surfaces sloping downwards towards the outlet pipe device, and the top of the feeding platform is equipped with a pipe-blocking device.

2. The automatic pipe storage and feeding rack according to claim 1, characterized in that, It also includes a first drive motor, which is connected to the hook arm screw jack via a transmission shaft.

3. The automatic pipe storage and feeding rack according to claim 1, characterized in that, The telescopic boom includes a guide slide mounting base, a sliding arm, and a sliding arm motor. The guide slide mounting base is connected to a nut seat on the telescopic boom screw jack. A slider is fixedly mounted on the guide slide mounting base. The sliding arm is slidably connected to the slider via a guide rail. A rack is provided on one side of the sliding arm. The sliding arm motor is located on one side of the guide slide mounting base. The output shaft end of the sliding arm motor is provided with a gear that meshes with the rack.

4. The automatic pipe storage and feeding rack according to claim 1, characterized in that, It also includes a second drive motor, which is connected to the telescopic boom screw jack via a transmission shaft.

5. The automatic pipe storage and feeding rack according to claim 1, characterized in that, The pipe-splitting device includes two first connecting pads, a pipe-jacking frame, two first jacking rods, a pipe-jacking drive shaft, and a pipe-jacking drive motor. The two first connecting pads are arranged opposite each other along the length of the feeding frame and are located between the material-supporting devices. The two sides of the pipe-jacking frame are vertically slidably connected to the first connecting pads. The upper ends of the two first jacking rods are respectively hinged to the two sides of the pipe-jacking frame. The lower ends of the two first jacking rods are hinged to connecting cranks. The lower ends of the connecting cranks are fastened to the pipe-jacking drive shaft. The pipe-jacking drive shaft is set at the bottom of the feeding frame through a bearing support. The pipe-jacking drive motor is driven by the pipe-jacking drive shaft through a gear chain.

6. The automatic pipe storage and feeding rack according to claim 5, characterized in that, It also includes two second connecting pads, two top plates, and two second push rods. The two second connecting pads are arranged opposite each other along the length of the feeding frame and are located on both sides of the two first connecting pads. The two top plates are vertically slidably connected to the two second connecting pads. The upper ends of the two second push rods are respectively hinged to the two top plates. The lower ends of the two second push rods are hinged to the connecting cranks. The lower end of the connecting cranks is provided with a secondary drive shaft. One end of the secondary drive shaft is hinged to the lower end of the first push rod through the connecting crank.

7. The automatic pipe storage and feeding rack according to claim 6, characterized in that, The upper ends of the jacking frame and the two top plates are both L-shaped with sloping surfaces.

8. The automatic pipe storage and feeding rack according to claim 1, characterized in that, The feeding device includes a slanted hook and a feeding drive motor. There are at least two slanted hooks, which are arranged along the length of the feeding frame. The two slanted hooks are vertically slidably arranged on the feeding frame via guide rail sliders. The feeding drive motor is connected to two feeding transmission shafts via a reducer. The feeding transmission shafts are driven by the slanted hooks via a transmission belt and a pulley.

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