Angle steel marking machine

By using automated feeding and unloading mechanisms, combined with a motor-driven character mold plate, the problem of frequent manual operation in existing angle steel printing machines has been solved, achieving efficient automated production.

CN116852899BActive Publication Date: 2026-07-24WENZHOU TAICHANG TOWER MFG
View PDF 5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WENZHOU TAICHANG TOWER MFG
Filing Date
2023-06-19
Publication Date
2026-07-24

Smart Images

  • Figure CN116852899B_ABST
    Figure CN116852899B_ABST
Patent Text Reader

Abstract

The application provides an angle steel marking machine, which comprises a feeding mechanism, a marking mechanism and a discharging mechanism. The feeding mechanism comprises a feeding rack and a first storage rack. The discharging mechanism comprises a discharging rack and a second storage rack. Long grooves are arranged on the feeding rack and the discharging rack. The marking mechanism comprises a bed body and a typewriter. The typewriter comprises a type disk. The first storage rack comprises a stacking section, an adjusting section, a first buffer section and a feeding groove. The buffer section is connected to one end of the adjusting section and is used for feeding the angle steel into the feeding groove. A first feeding mechanism is arranged between the feeding rack and the first storage rack. The second storage rack comprises a conveying section and a second buffer section. A second feeding mechanism is arranged between the discharging rack and the second storage rack. The conveying section is used for feeding the angle steel to the buffer section. An inductor is arranged on the buffer section. The angle steel marking machine can reduce the labor cost, improve the production efficiency and reduce the workload of the workers.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to an angle steel printing machine. Background Technology

[0002] An angle steel printing machine is a device used to print angle steel. It typically includes a feeding mechanism, a printing mechanism, and a discharging mechanism. The feeding mechanism includes a first frame for stacking angle steel, a second frame for guiding the angle steel towards the printing mechanism, and a pusher for pushing the angle steel along the second frame. The discharging mechanism includes a third frame located at the outlet of the printing mechanism and a fourth frame for buffering the angle steel. The printing mechanism includes a bed, in which a typewriter and a hydraulic press are installed.

[0003] During the operation of the angle steel printing machine, the operator first uses a crane to stack the angle steel on the first frame. At this point, most of the angle steel is stacked with its two sides or one side facing down. Then, the operator needs to separate and flip the angle steel, placing each individual angle steel in a V-shape into the long slot of the second frame. Alternatively, the operator can simply flip the angle steel and then use an additional feeding component to place each individual angle steel in a V-shape into the long slot of the second frame. After that, the second frame and the pusher work together to enter the bed, completing the loading. The operator selects the corresponding typewriter, and the hydraulic press applies pressure to complete the printing. The pusher continues to work, and the hydraulic press applies pressure to the angle steel pushed out of the bed to cut it. Then, the printed angle steel enters the long slot of the third frame, where the operator places it onto the second frame. When the angle steel on the second frame reaches a certain quantity, the operator uses a crane to lift the angle steel away, completing the unloading.

[0004] However, existing angle steel printing machines require operators to be stationed near the first frame during the feeding process to move and flip the angle steel, and to start and stop the feeding mechanism as needed. During the printing process, operators need to disassemble and adjust the type molds in the typewriter according to different batches and specifications of angle steel, which is not convenient for continuous production. During the unloading process, operators need to place the angle steel from the first frame onto the second frame, and operators need to be stationed near the second frame to operate it. This means that angle steel printing machines require a large number of operators during operation, resulting in high labor costs, a heavy workload for operators, and the need to consider the operators' proficiency, which affects the overall production efficiency. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides an angle steel printing machine that can reduce labor costs, improve production efficiency, and reduce the workload of workers.

[0006] To achieve the above objectives, the present invention provides an angle steel printing machine, comprising a feeding mechanism, a printing mechanism, and a discharging mechanism. The feeding mechanism includes a feeding rack and several first storage racks, and the discharging mechanism includes a discharging rack and several second storage racks. Both the feeding rack and the discharging rack are provided with V-shaped elongated grooves, in which pulley systems are installed. The several first storage racks and several second storage racks are arranged at intervals corresponding to the extension directions of the feeding rack and the discharging rack, respectively. The printing mechanism includes a bed and a typewriter within the bed. The first storage racks include a stacking section for placing angle steel, an adjusting section, a first buffer section, and a V-shaped feeding trough. The adjusting section is used to convey angle steel that has been flipped into an L-shape and placed individually. The first buffer section is connected to the end of the adjusting section near the feeding rack. A buffer section is used to flip the angle steel that has moved to the end of the adjustment section into a V-shape and send it to the feeding trough. A first feeding mechanism is provided between the feeding rack and the first storage rack to send the angle steel that has been flipped into a V-shape to the long groove of the feeding rack. The second storage rack includes a conveying section and a second buffer section. A second feeding mechanism is provided between the discharge rack and the second storage rack. The second feeding mechanism is used to flip the angle steel into an L-shape and send it to the conveying section. The conveying section is used to send the angle steel to the second buffer section connected to its end. A sensor is provided on the second buffer section to send a signal when the angle steel reaches the corresponding number. The typewriter includes several annular type mold disks. The type mold disks are arranged axially. The type mold disks are driven by a motor to rotate circumferentially and several type molds are arranged at intervals on their peripheral walls.

[0007] The advantages of the above technical solution are as follows: The feeding mechanism includes a feeding rack and several first storage racks. Each first storage rack contains a stacking section, an adjusting section, a first buffer section, and a V-shaped feeding chute. During operation, workers first transport and stack the angle steel into the stacking section using a crane or hoist. Then, workers separate the stacked angle steel and flip each individual angle steel into an L-shape, placing it in the adjusting section. The adjusting section then transports the L-shaped angle steel. Finally, the first buffer section flips the angle steel that has reached the end of the adjusting section into a V-shape. The angle steel, now shaped into a V-shape, is finally fed into the feeding trough. The first feeding mechanism then transfers the V-shaped angle steel to the long slot of the feeding rack. After the worker places the angle steel into the adjustment section, the feeding mechanism can run automatically for an extended period. This eliminates the need for workers to be constantly present at the feeding rack, allowing the same number of personnel to operate multiple machines, reducing workload and difficulty, and improving overall efficiency. The typewriter is equipped with several ring-shaped type mold plates and several type molds arranged on these plates, allowing the type mold plates to be axially aligned... The fabric can be driven by a motor to rotate circumferentially, and can form an automatic docking and layout program by rotating the type mold disk. The typing code is automatically input, requiring no human operation, which is convenient for continuous production and can also prevent human error. The unloading mechanism is equipped with an unloading rack and several second storage racks. The second storage racks are equipped with a conveying section and a second buffer section. With the second unloading mechanism between the unloading rack and the second storage rack, after the angle steel slides out of the printing mechanism, the second unloading mechanism flips the angle steel into an L-shape and sends it to the conveying section. The conveying section then transports the angle steel until it is delivered to the buffer section at its end. It continues to move under the push of subsequent angle steel, allowing the angle steel to be laid flat on the buffer section. Finally, with the sensor on the buffer section, a signal is issued when the corresponding number of angle steel is reached, and the workers use a crane to lift the angle steel away to complete the unloading. No permanent staff are required. The workers only need to store a certain number of angle steel in the buffer section and cooperate with the crane to complete the unloading, thereby reducing labor costs and improving production efficiency.

[0008] The present invention can be further configured as follows: a first chain and several buffer slots are provided at the first buffer section, the buffer slots are V-shaped and arranged at intervals on the first chain, and the feeding slot includes a guide edge connecting the buffer section, the height of the guide edge is higher than the height of the bottom surface of the buffer slot and extends at an inclination.

[0009] By further configuring the buffer section, a first chain belt and several V-shaped buffer slots are set up. The buffer slots are arranged at intervals on the first chain belt. After the V-shaped angle steel is fed into the feeding trough in the first buffer slot, the subsequent buffer slots are also filled with V-shaped angle steel, which achieves a good buffering effect. A guide edge connecting the buffer section is set in the feeding trough, and the height of the guide edge is greater than the bottom surface of the buffer slot and it extends at an angle. This allows the guide edge to lift the angle steel when the buffer slot moves to the guide edge and then guide the angle steel into the feeding trough.

[0010] The invention can be further configured such that: the height of the adjustment section is greater than the height of the first buffer section; the adjustment section is provided with a conveyor belt for driving the angle steel and a slope at the end; the slope is inclined toward the first buffer section; the buffer trough includes a yielding edge and an abutting edge that pass under the slope successively; the length of the abutting edge is greater than the length of the yielding edge.

[0011] By further setting the height of the adjustment section to be greater than that of the buffer section, and setting a plane inclined towards the buffer section at the end of the adjustment section, when the angle steel moves to the end of the adjustment section, it is tilted to a certain extent. Then, when the buffer groove passes under the slope, its shorter yielding side crosses the angle steel, while the longer abutting side abuts the angle steel, bringing the angle steel into the buffer groove, thus switching the angle steel from an L-shaped state to a V-shaped state.

[0012] The present invention can be further configured as follows: the first feeding mechanism includes a first swing arm rotatably disposed between the feeding frame and the loading trough and a first feeding trough arranged in a V shape. The opening of the first feeding trough is always facing upward during the rotation of the first swing arm, and the long groove of the feeding frame and the loading trough are both arranged on the movement trajectory of the first feeding trough.

[0013] By further configuration, a first swing arm and a first feeding trough are set in the first feeding mechanism between the feeding frame and the feeding trough. During the rotation of the first swing arm, the V-shaped first feeding trough first passes through the feeding trough from bottom to top, lifting the angle steel in the feeding trough. Then it continues to rotate from top to bottom, passing through the feeding frame and placing the angle steel on the feeding frame. Finally, it continues to move towards the feeding trough. This process is repeated to form the conveying of angle steel from the feeding trough to the feeding frame.

[0014] The present invention can be further configured as follows: the first feeding mechanism includes a first base that can be rotatably connected to the first swing arm and a second chain belt in the shape of a ring, the first feeding groove is rotatably disposed at the end of the first swing arm, the first feeding groove and the first base are respectively provided with a first meshing part and a second meshing part, and the two ends of the second chain belt are respectively connected to the first meshing part and the second meshing part.

[0015] By further configuration, a first meshing part and a second meshing part are respectively provided on the first base and the first feeding groove, and a second chain belt is provided with its two ends respectively connected to the first meshing part and the second meshing part. This allows the first feeding groove to rotate relative to the direction of the first rocker arm under the action of the second chain belt, so that the opening of the V-shaped first feeding groove always faces upward.

[0016] The invention can be further configured as follows: conveyor belts are provided on both sides of the conveying section, a placement plate and a guide surface are provided in the second buffer section, the height of the placement plate is greater than the height of the conveyor belt, the guide surface extends obliquely toward the direction of the conveyor belt, and the sensor is located at the end of the placement plate.

[0017] By further configuring the system, a conveyor belt is used to transport the angle steel to the guide surface. Then, under the push of subsequent angle steel, the L-shaped angle steel is laid flat on the placement plate to form a buffer. By placing the sensor at the end of the placement plate, the sensor will only detect and send a signal when a certain number of angle steels have been placed on the placement plate, reminding the staff to lift the angle steel.

[0018] The present invention can be further configured as follows: the second feeding mechanism includes a second swing arm rotatably disposed between the discharge rack and the second storage rack and a second feeding trough arranged in a V shape. The long trough of the discharge rack and the conveying section of the second storage rack are both on the movement trajectory of the second feeding trough. During the rotation of the second swing arm, the opening of the second feeding trough is tilted towards the direction of the second storage rack and can be elastically swung to be set upward.

[0019] By further designing the second feeding mechanism, a second swing arm is installed between the conveying section and the long trough of the feeding rack. The second feeding trough is rotatably positioned at the end of the swing arm and is set into a V-shape, allowing it to move along a circular trajectory. This facilitates the placement of the buffer section and the long trough of the feeding rack on the movement trajectory of the second feeding trough. Finally, the second feeding trough is designed to swing elastically. Through the elastic swinging and resetting of the second feeding trough, the angle steel placed in the V-shape in the long trough of the feeding rack can be flipped to an L-shape during operation and finally delivered to the conveying section.

[0020] The present invention can be further configured such that: the second feeding mechanism includes a second base that can be rotatably connected to the second swing arm and a third chain belt in the shape of an annulus, a third meshing part and a fourth meshing part are respectively provided at the second feeding groove and the second base, and the two ends of the third chain belt are respectively connected to the third meshing part and the fourth meshing part.

[0021] By further configuring the second feeding mechanism, a second base and a ring-shaped third chain are provided for the second swing arm to rotate and connect. The two ends of the third chain are respectively connected to the third and fourth meshing parts of the corresponding second feeding groove and the second base. This allows the second feeding groove to rotate in the opposite direction to the movement of the second swing arm relative to the second base during the rotation of the second swing arm, so that the orientation of the V-shaped second feeding groove remains unchanged.

[0022] The present invention can be further configured such that: a shaft portion is provided on the second feeding groove, the shaft portion forms a rotatable connection between the second feeding groove and the third meshing portion, the third meshing portion is provided with a first abutting surface and a second abutting surface, the shaft portion is provided with a protrusion and an elastic element, and the shaft portion can be rotated such that the protrusion abuts against the first abutting surface or the elastic element is pressed against the second abutting surface.

[0023] With further configuration, a first abutting surface and a second abutting surface are provided on the first engaging portion, and a protrusion and an elastic member are provided on the shaft portion. The shaft portion swings within the constraints of the first abutting surface and the second abutting surface by the protrusion, and the elastic force of the elastic member forms the elastic swing of the shaft portion, thereby constituting the elastic swing of the feed trough that is connected to the first engaging portion through the shaft portion.

[0024] The invention can be further configured such that: the bed is provided with a through groove for the angle steel to pass through, the letter mold plate is provided with the through groove on one side, and a hydraulically driven pressure rod is provided on the other side of the through groove.

[0025] By further configuring the die plate and the hydraulically driven pressure rod to be positioned on opposite sides of the through slot, the pressure rod can be driven to print on the angle steel once it enters. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the feeding mechanism in an embodiment of the present invention; Figure 3 This is a top view of the first storage rack in an embodiment of the present invention; Figure 4 This is a side view of the first storage rack in an embodiment of the present invention; Figure 5 This is an embodiment of the present invention. Figure 4 An enlarged view of part a; Figure 6 This is a schematic diagram of the structure of the first feeding mechanism in an embodiment of the present invention; Figure 7 This is a schematic diagram of the feeding mechanism in an embodiment of the present invention; Figure 8This is a structural diagram of the second storage rack in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the second feeding mechanism in an embodiment of the present invention; Figure 10 This is an embodiment of the present invention. Figure 9 Sectional view at point BB; Figure 11 This is a schematic diagram illustrating the cooperation between the feeding rack, the discharging rack, and the printing mechanism in an embodiment of the present invention; The components include: a feeding mechanism 1; a feeding rack 11; a first storage rack 12; a stacking section 121; an adjusting section 122; a conveyor belt 1221; a slope 1222; a first buffer section 123; a first chain belt 1231; a buffer trough 1232; a feeding trough 124; a guide edge 1241; a printing mechanism 2; a bed 21; a typewriter 22; a type mold plate 221; a pressure rod 23; a discharging mechanism 3; a discharge rack 31; a second storage rack 32; a conveying section 321; a conveyor belt 3211; a second buffer section 322; and a placement plate 3221. Guide surface 3222; Long groove 4; Pulley block 41; First feeding mechanism 5; First swing rod 51; First feeding groove 52; First base 53; Second chain 54; First meshing part 55; Second meshing part 56; Second feeding mechanism 6; Second swing rod 61; Second feeding groove 62; Third meshing part 621; First abutting surface 6211; Second abutting surface 6212; Shaft part 622; Protrusion 6221; Elastic element 623; Second base 63; Fourth meshing part 631; Third chain 64; Sensor 7. Detailed Implementation

[0027] An embodiment of the present invention, an angle steel printing machine, is shown below. Figure 1-11 As shown: The system includes a feeding mechanism 1, a printing mechanism 2, and a discharging mechanism 3. The feeding mechanism 1 includes a feeding rack 11 and several first storage racks 12. The discharging mechanism 3 includes a discharging rack 31 and several second storage racks 32. Both the feeding rack 11 and the discharging rack 31 are provided with V-shaped elongated grooves 4, in which pulley sets 41 are installed. The several first storage racks 12 and several second storage racks 32 are arranged at intervals corresponding to the extension directions of the feeding rack 11 and the discharging rack 31, respectively. The first storage racks 12 include a stacking section 12 for placing angle steel. 1. Adjustment section 122, first buffer section 123 and V-shaped feeding trough 124. Adjustment section 122 is used to convey angle steel that has been flipped into an L-shape and placed individually. First buffer section 123 is connected to one end of adjustment section 122 near the feeding rack 11. First buffer section 123 is used to flip angle steel that has moved to the end of adjustment section 122 into a V-shape and feed it into feeding trough 124. A first feeding mechanism 5 is provided between feeding rack 11 and first storage rack 12 to feed angle steel that has been flipped into a V-shape into the long groove of feeding rack 11.

[0028] The first buffer section 123 is provided with a first chain belt 1231 and several buffer slots 1232. The buffer slots 1232 are V-shaped and arranged at intervals on the first chain belt 1231. The feeding slot 124 includes a guide edge 1241 connecting the buffer section 123. The height of the guide edge 1241 is higher than the height of the bottom surface of the buffer slot 1232 and extends at an angle.

[0029] The height of the adjustment section 122 is greater than the height of the first buffer section 123. The adjustment section 122 is provided with a conveyor belt 1221 for driving the angle steel and a slope 1222 at the end. The slope 1222 is inclined toward the first buffer section 123. The buffer trough 1232 includes a yielding edge 1231 and an abutting edge 1232 that pass under the slope 123. The length of the abutting edge 1232 is greater than the length of the yielding edge 1231.

[0030] The first feeding mechanism 5 includes a first swing rod 51 rotatably disposed between the feeding frame 11 and the feeding trough 124 and a first feeding trough 52 arranged in a V shape. The opening of the first feeding trough 52 is always facing upward during the rotation of the first swing rod 51, and the long groove 4 of the feeding frame 11 and the feeding trough 124 are both arranged on the movement trajectory of the first feeding trough 52.

[0031] The first feeding mechanism 5 includes a first base 53 that can be rotatably connected to the first rocker arm 51 and a second chain belt 54 in the shape of a ring. The first feeding groove 52 is rotatably disposed at the end of the first rocker arm 51. The first feeding groove 52 and the first base 53 are respectively provided with a first meshing part 55 and a second meshing part 56. The two ends of the second chain belt 54 are respectively connected to the first meshing part 55 and the second meshing part 56.

[0032] The second storage rack 32 includes a conveying section 321 and a second buffer section 322. A second feeding mechanism 6 is provided between the discharge rack 31 and the second storage rack 32. The second feeding mechanism 6 is used to flip the angle steel into an L-shape and send it to the conveying section 321. The conveying section 321 is used to send the angle steel to the second buffer section 322 connected to its end. The second buffer section 322 is provided with a sensor 7 for sending a signal when the angle steel reaches the corresponding quantity. Conveyor belts 3211 are provided on both sides of the conveying section 321. A placement plate 3221 and a guide surface 3222 are provided at the second buffer section 322. The height of the placement plate 3221 is greater than the height of the conveyor belt. The guide surface 3222 extends obliquely toward the direction of the conveyor belt 3211. The sensor 7 is located at the end of the placement plate 3221. In this embodiment, the sensor 7 can be a contact sensor, a photosensitive sensor, or other types of sensors. It is a conventional setting and is only used to illustrate the orientation.

[0033] The second feeding mechanism 6 includes a second swing arm 61 rotatably disposed between the discharge rack 31 and the second storage rack 32 and a second feeding trough 62 arranged in a V shape. The long groove 4 of the discharge rack 31 and the conveying section 321 of the second storage rack 32 are both on the movement trajectory of the second feeding trough 62. During the rotation of the second swing arm 61, the opening of the second feeding trough 62 is tilted towards the second storage rack 32 and can be elastically swung to be set upward.

[0034] The second feeding mechanism 6 includes a second base 63 that can be rotatably connected to the second rocker arm 61 and a ring-shaped third chain belt 64. The second feeding groove 62 and the second base 63 are respectively provided with a third meshing part 621 and a fourth meshing part 631. The two ends of the third chain belt 64 are respectively connected to the third meshing part 621 and the fourth meshing part 631.

[0035] The second feeding groove 62 is provided with a shaft portion 622, which forms a rotatable connection between the second feeding groove 62 and the third engaging portion 621. The third engaging portion 621 is provided with a first abutting surface 6211 and a second abutting surface 6212. The shaft portion 622 is provided with a protrusion 6221 and an elastic member 623. The shaft portion 622 can rotate until the protrusion 6221 abuts against the first abutting surface 6211 or the elastic member 623 is pressed against the second abutting surface 6212.

[0036] The printing mechanism 2 includes a bed 21 and a typewriter 22 within the bed 21. The typewriter 22 includes several annular type mold disks 221, which are arranged axially. Each type mold disk 221 is driven by a motor to rotate circumferentially, and several type molds are arranged at intervals on its peripheral wall. The bed 21 is provided with a through groove 211 for angle steel to pass through. The type mold disk 221 has the through groove on one side, and a hydraulically driven pressure rod 23 is provided on the other side of the through groove 211. In this embodiment, the motor on the type mold disk 221 is a servo motor. The character mold disk 221 is also equipped with a high-precision reducer, a small pulley, a synchronous toothed belt, and a large pulley. Power is provided by a servo motor. The high-precision reducer is used to work with the servo motor to improve accuracy, while the small pulley, synchronous toothed belt, and large pulley enable each character mold disk to rotate as needed. There are 12 character mold disks, each driven by a 12 servo motor. The number of character molds on the character mold disk is 41, including 26 letters, 10 numbers, 4 special characters (-, / , \, and the manufacturer's logo), and 1 empty space.

[0037] The above examples are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. An angle steel printing machine, comprising a feeding mechanism, a printing mechanism, and a discharging mechanism, wherein the feeding mechanism includes a feeding frame and a plurality of first storage frames, and the discharging mechanism includes a discharging frame and a plurality of second storage frames, wherein both the feeding frame and the discharging frame are provided with V-shaped elongated grooves, and pulley systems are provided in the elongated grooves; the plurality of first storage frames and the plurality of second storage frames are arranged at intervals corresponding to the extension directions of the feeding frame and the discharging frame, respectively; and the printing mechanism includes a bed and a typewriter within the bed, characterized in that: The first storage rack includes a stacking section for placing angle steel, an adjusting section, a first buffer section, and a V-shaped feeding chute. The adjusting section is used to convey angle steel that has been flipped into an L-shape and placed individually. The first buffer section is connected to the end of the adjusting section near the feeding rack. The first buffer section is used to flip the angle steel that has moved to the end of the adjusting section into a V-shape and feed it into the feeding chute. A first feeding mechanism is provided between the feeding rack and the first storage rack to feed the angle steel that has been flipped into a V-shape into the long slot of the feeding rack. The second storage rack includes a conveying section and a second buffer section. A second feeding mechanism is provided between the discharge rack and the second storage rack. The second feeding mechanism is used for... The angle steel is flipped into an L-shape and fed to the conveyor section. The conveyor section is used to feed the angle steel to the second buffer section connected to its end. The second buffer section is equipped with a sensor that sends a signal when the angle steel reaches a certain quantity. The typewriter includes several annular type die discs, which are arranged axially. The type die discs are driven by a motor to rotate circumferentially, and several type dies are arranged at intervals on their peripheral walls. The first buffer section is equipped with a first chain and several buffer slots. The buffer slots are V-shaped and arranged at intervals on the first chain. The feeding chute includes a guide edge connecting to the buffer section. The height of the guide edge is higher than the bottom surface of the buffer slot and extends at an angle. The height of the entire section is greater than the height of the first buffer section. The adjusting section is equipped with a conveyor belt for moving the angle steel and a slope at the end, inclined towards the first buffer section. The buffer trough includes a clearance edge and an abutment edge that pass under the slope, with the length of the abutment edge greater than the length of the clearance edge. The second feeding mechanism includes a second swing arm rotatably positioned between the discharge rack and the second storage rack, and a V-shaped second feeding trough. The long trough of the discharge rack and the conveying section of the second storage rack are both on the movement trajectory of the second feeding trough. During the rotation of the second swing arm, the opening of the second feeding trough faces the second storage rack. The second feeding mechanism is tilted and can be elastically swung to an upward orientation. It includes a second base that can be rotatably connected to a second swing arm and a ring-shaped third chain. A third meshing part and a fourth meshing part are respectively provided at the second feeding groove and the second base. The two ends of the third chain are respectively connected to the third meshing part and the fourth meshing part. A shaft is provided on the second feeding groove, which forms a rotatable connection between the second feeding groove and the third meshing part. A first abutting surface and a second abutting surface are provided on the third meshing part. A protrusion and an elastic element are provided on the shaft. The shaft can be rotated so that the protrusion abuts against the first abutting surface or presses the elastic element against the second abutting surface.

2. The angle steel printing machine according to claim 1, characterized in that: The first feeding mechanism includes a first swing arm rotatably disposed between the feeding frame and the feeding trough and a first feeding trough arranged in a V shape. The opening of the first feeding trough is always facing upward during the rotation of the first swing arm, and the long trough of the feeding frame and the feeding trough are both arranged on the movement trajectory of the first feeding trough.

3. The angle steel printing machine according to claim 2, characterized in that: The first feeding mechanism includes a first base that can be rotatably connected to a first swing arm and a second chain belt in the shape of a ring. A first feeding trough is rotatably disposed at the end of the first swing arm. A first meshing part and a second meshing part are respectively provided at the first feeding trough and the first base. The two ends of the second chain belt are respectively connected to the first meshing part and the second meshing part.

4. The angle steel printing machine according to claim 1, characterized in that: Conveyor belts are installed on both sides of the conveyor section, and a placement plate and a guide surface are installed in the second buffer section. The height of the placement plate is greater than the height of the conveyor belt, and the guide surface extends at an angle towards the conveyor belt. The sensor is located at the end of the placement plate.

5. The angle steel printing machine according to claim 1, characterized in that: The bed frame is provided with a through groove for the angle steel to pass through, the letter mold plate is provided with a through groove on one side, and a hydraulically driven pressure rod is provided on the other side of the through groove.