A continuous production line for automatic feeding of angle iron

Abstract

This utility model provides a continuous production line for automatic feeding of angle iron, including a machine body; a feeding mechanism, disposed on the machine body, driving the angle iron forward to meet processing feeding requirements; a loading mechanism, disposed on the machine body, for providing the angle iron to be processed to the feeding mechanism; and a processing mechanism, disposed on the front side of the machine body, receiving the angle iron from the feeding mechanism, for punching, cutting, and splicing the angle iron. By adopting automated loading, feeding, and processing methods, automated production of angle iron is achieved. Simultaneously, the combination of a cutting section and a splicing section allows for the splicing of the processed angle iron after the finishing of both ends, realizing continuous processing of angle iron, avoiding the generation of angle iron scraps, improving the utilization efficiency of angle iron, and eliminating waste of raw materials.

Description

Technical Field

[0001] This utility model relates to an automatic processing production line for angle iron, and more particularly to a continuous production line for automatic unloading of angle iron. Background Technology

[0002] In the processing of pipe components, stamping and chamfering of angle iron are common processing methods. In the existing technology, a long angle iron is usually fed into an automatic stamping die for segmented processing. In this process, the long angle iron will inevitably produce scrap material after processing. This scrap material cannot be used for the reprocessing of components. Therefore, the utilization rate of angle iron raw materials is low, resulting in waste of raw materials. Utility Model Content

[0003] The technical problem to be solved by this utility model is that: in the existing process of reprocessing angle iron raw materials, scraps and waste materials are inevitably generated, resulting in low material utilization. This utility model provides a continuous production line and processing method for automatic feeding of angle iron to solve the above problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a continuous production line for automatic feeding of angle iron, including a machine body; a feeding mechanism, which is set on the machine body and drives the angle iron to move forward to meet the processing feeding requirements; a loading mechanism, which is set on the machine body and is used to provide the angle iron to be processed to the feeding mechanism; and a processing mechanism, which is set on the front side of the machine body and receives the angle iron from the feeding mechanism for punching, cutting and splicing processing of the angle iron.

[0005] Furthermore: the feeding mechanism includes a feeding guide rail horizontally fixed on the equipment body, a feeding slider slidably mounted on the feeding guide rail, a feeding rack parallel to the feeding guide rail and fixedly mounted on the equipment body, a feeding motor and a feeding gripper fixedly mounted on the feeding slider; a feeding gear is installed at the output end of the feeding motor, and the feeding gear meshes with the feeding rack; the feeding gripper holds the angle iron transmitted by the feeding mechanism.

[0006] Furthermore: the processing mechanism includes a cutting section, a continuing section and a stamping die arranged sequentially along the feed direction of the angle iron. The cutting section includes a cutting seat, a cutting blade arranged in the cutting seat and a cutting cylinder arranged on the cutting seat. The cutting blade is fixedly arranged on the piston rod of the cutting cylinder. The bottom of the cutting seat is provided with a limiting groove through which the angle iron passes.

[0007] Furthermore: the connecting part includes a welding drive mechanism and a welding torch mounted on the welding drive mechanism, the welding drive mechanism includes a vertical module and a horizontal module mounted on the vertical module, and the welding torch is mounted on the horizontal module; the connecting part also includes a clamping seat and a clamping cylinder for clamping the angle iron.

[0008] Furthermore: the stamping die includes a die body, into which the angle iron to be processed extends; a punching portion, provided on the die body, having two punching portions, which punch holes on the two sides of the angle iron respectively; a chamfering portion, provided on the die body, having two chamfering portions, which chamfer the two ends of the two sides of the angle iron respectively; and a cutting portion, provided on the die body, for cutting the angle iron.

[0009] Further: the punching part includes a punching base, the punching base is provided with an L-shaped mounting groove for the angle iron to pass through, and the punching base is provided with a punching mounting hole communicating with the mounting groove; the punching base is provided with a buffer plate and a punching push plate, the buffer plate being disposed between the punching push plate and the punching base; the punching base is provided with a spring mounting hole, a buffer spring is installed in the spring mounting hole, and the buffer spring pushes the buffer plate; a guide sleeve is provided on the buffer plate, and the guide sleeve slides. The punch is inserted into the punching mounting hole; a punching spring is provided between the buffer plate and the punching push plate; a punch is provided on the punching push plate; the punch passes through the buffer plate and is inserted into the guide sleeve; the punching push plate can press the punch into the mounting groove or pull the punch back from the mounting groove into the guide sleeve; a punching pad is provided at the bottom of the mounting groove on the punching base; a punching blanking hole is provided in the punching pad; a punching cylinder is provided on the mold body to press the punching push plate.

[0010] Furthermore: the feeding mechanism includes a conveyor chain and a lifting mechanism. The lifting mechanism is located at the tail of the conveyor chain. A V-shaped frame for placing angle iron is installed on the conveyor chain. The lifting mechanism includes a vertically arranged lifting cylinder and a lifting frame arranged on the piston rod of the lifting cylinder.

[0011] Furthermore, there are two feeding mechanisms, one located at the inlet of the processing mechanism and the other located at the outlet of the processing mechanism.

[0012] A method for continuous production of angle iron with automatic feeding, utilizing the aforementioned continuous production line for automatic feeding of angle iron.

[0013] S1: The feed mechanism at the entrance of the processing mechanism clamps the angle iron, cuts off and trims the first end of the angle iron, and sends it into the stamping die for chamfering and punching.

[0014] S2: The feed mechanism at the exit of the machining mechanism clamps the angle iron and trims the end of the angle iron.

[0015] S3: The feed mechanism at the entry of the machining mechanism clamps the new angle iron, cuts and trims the first end of the angle iron, and splices it with the angle iron clamped by the feed mechanism at the exit of the machining mechanism at the joint.

[0016] S4: The welding gun at the joint welds the two angle iron sections together.

[0017] S5: The stamping die continuously produces the assembled angle iron.

[0018] The beneficial effects of this utility model are that the continuous production line for automatic feeding of angle iron achieves automated production of angle iron by adopting automated feeding, feeding and processing methods. At the same time, it adopts a cutting part and a splicing part to perform splicing operation on the angle iron after the finishing of both ends is completed, realizing continuous processing and production of angle iron, avoiding the generation of angle iron scraps, improving the utilization efficiency of angle iron, and eliminating the waste of raw materials. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 and Figure 3 This is a schematic diagram of the structure of a continuous production line for automatic feeding of angle iron according to this utility model;

[0021] Figure 2 This is a schematic diagram of the machining mechanism;

[0022] Figure 4 yes Figure 1 Enlarged schematic diagram of the local structure at point A;

[0023] Figure 5 yes Figure 1 Enlarged schematic diagram of the partial structure at point B (excluding the stamping die);

[0024] Figure 6 This is a structural schematic diagram from the rear view of a continuous production line for automatic angle iron feeding.

[0025] Figure 7 yes Figure 6 A magnified view of the local structure at point C;

[0026] Figure 8 , Figure 9 These are schematic diagrams of the external structure of the optimal embodiment of a stamping die for angle iron processing according to this utility model from different perspectives.

[0027] Figure 10 This is a schematic diagram of the partial structure of the punching section;

[0028] Figure 11 yes Figure 10 Enlarged schematic diagram of the mid-section view.

[0029] In the diagram: 1. Equipment body; 2. Feeding mechanism; 3. Angle iron; 4. Loading mechanism; 5. Machining mechanism; 6. Feed guide rail; 7. Feed slider; 8. Feed rack; 9. Feed motor; 10. Feed gripper; 11. Feed gear; 12. Cutting seat; 13. Cutting cylinder; 14. Limiting groove; 15. Vertical module; 16. Horizontal module; 17. Welding torch; 18. Clamping seat; 19. Clamping cylinder; 20. Mold body; 21. 22. Punching section, 23. Chamfering section, 24. Cutting section, 25. Punching base, 26. Mounting groove, 27. Punching mounting hole, 28. Buffer plate, 29. Punching push plate, 30. Spring mounting hole, 31. Buffer spring, 32. Guide sleeve, 33. Punching spring, 34. Punching punch, 35. Punching blanking hole, 36. Punching cylinder, 37. Conveyor chain, 38. V-shaped frame, 39. Lifting cylinder, 40. Lifting frame. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "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 refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0034] like Figures 1 to 11 As shown, this utility model provides a continuous production line for automatic feeding of angle iron 3, including a device body 1; a feeding mechanism 2, which is disposed on the device body 1 and drives the angle iron 3 to move forward to meet the processing feeding requirements; a loading mechanism 4, which is disposed on the device body 1 and is used to provide the angle iron 3 to be processed to the feeding mechanism 2; and a processing mechanism 5, which is disposed on the front side of the device body 1 and receives the angle iron 3 transmitted from the feeding mechanism 2, and is used for punching, cutting and splicing processing of the angle iron 3.

[0035] The continuous production line feed mechanism 2 is used to drive the feed of angle iron 3 and moves angle iron 3 according to processing requirements. The feeding mechanism 4 continuously provides angle iron 3 material to be processed to the feed mechanism 2 so as to realize continuous production. The processing mechanism 5 can perform various processing on angle iron 3, including cutting and trimming the ends of angle iron 3, punching and chamfering on angle iron 3, and connecting the previous angle iron 3 to the next angle iron 3.

[0036] The feeding mechanism 2 includes a feeding guide rail 6 horizontally fixed on the equipment body 1, a feeding slider 7 slidably mounted on the feeding guide rail 6, a feeding rack 8 parallel to the feeding guide rail 6 and fixedly mounted on the equipment body 1, a feeding motor 9 fixedly mounted on the feeding slider 7, and a feeding gripper 10; a feeding gear 11 is installed at the output end of the feeding motor 9, and the feeding gear 11 meshes with the feeding rack 8; the feeding gripper 10 holds the angle iron 3 transmitted from the loading mechanism 4.

[0037] The feed mechanism 2 is used for the feed drive of the angle iron 3. The feed gripper 10 holds the angle iron 3 to be processed. The feed motor 9 drives the feed gear 11 to rotate, realizing the feed movement on the meshing feed rack 8. The feed gripper 10 can then realize the feed movement in the horizontal direction. Controlling the output of the feed motor 9 can control the feed amount of the feed gripper 10. The feed motor 9 can be a servo motor, which has high motion accuracy and is easy to control, so as to realize high-precision control of the feed gripper 10.

[0038] The processing mechanism 5 includes a cutting section 23, a continuing section, and a stamping die arranged sequentially along the feed direction of the angle iron 3. The cutting section 23 includes a cutting seat 12, a cutting blade disposed in the cutting seat 12, and a cutting cylinder 13 disposed on the cutting seat 12. The cutting blade is fixedly disposed on the piston rod of the cutting cylinder 13. A limiting groove 14 through which the angle iron 3 passes is provided at the bottom of the cutting seat 12.

[0039] The cutting section 23 is mainly used for cutting the first and last ends of the angle iron 3, achieving smooth finishing of both ends of the angle iron 3 and determining the processing reference at both ends of the angle iron 3. The connecting section is used to splice and weld two spliced ​​angle irons 3 to form a continuous whole angle iron 3. The stamping die is used to perform chamfering and punching operations on the angle iron 3. The cutting cylinder 13 of the cutting section 23 can drive the cutting blade to cut the angle iron 3. The angle iron 3 is inserted into the limiting groove 14, which can play a preliminary positioning and guiding role, preventing the angle iron 3 from moving or other abnormal situations during processing.

[0040] The connecting part includes a welding drive mechanism and a welding torch 17 mounted on the welding drive mechanism. The welding drive mechanism includes a vertical module 15 and a horizontal module 16 mounted on the vertical module 15. The welding torch 17 is mounted on the horizontal module 16. The connecting part also includes a clamping seat 18 for clamping the angle iron 3 and a clamping cylinder 19.

[0041] Both the horizontal module 16 and the vertical module 15 are common linear motion modules in the prior art, and their specific structures will not be described in detail in this application. The right-angle setting of the two modules can accurately drive the welding torch 17 to move to any position in the horizontal and vertical range, ensuring the driving accuracy of the welding torch 17. The clamping cylinder 19 can press the angle iron 3 onto the clamping seat 18, which makes the operation of splicing angle iron 3 more stable and ensures the accuracy of splicing operation.

[0042] The stamping die includes: a die body 20, into which the angle iron 3 to be processed extends; two punching portions 21 disposed on the die body 20, which punch holes on the two sides of the angle iron 3 respectively; two chamfering portions 22 disposed on the die body 20, which chamfer the two ends of the two sides of the angle iron 3 respectively; and a cutting portion 23 disposed on the die body 20 for cutting the angle iron 3.

[0043] The above-mentioned multiple processing steps are completed in a single stamping die. The punching section 21 mainly handles the punching of holes on both sides of the angle iron 3, and the diameter of the punched holes can be adjusted as needed. The chamfering section 22 mainly handles the chamfering of the sides at both ends of the angle iron 3, typically using rounded corners. The cutting section 23 is mainly used for cutting after processing a section of angle iron 3, primarily for determining the length of the processed angle iron 3. Since the angle iron 3 profile has two mutually perpendicular sides, there are two punching sections 21 and two chamfering sections 22, each corresponding to one side.

[0044] The punching section 21 includes a punching base 24, on which an L-shaped mounting groove 25 for the angle iron 3 to pass through is provided, and a punching mounting hole 26 communicating with the mounting groove 25 is provided on the punching base 24; a buffer plate 27 and a punching push plate 28 are provided on the punching base 24, with the buffer plate 27 disposed between the punching push plate 28 and the punching base 24; a spring mounting hole 29 is provided on the punching base 24, in which a buffer spring 30 is installed, and the buffer spring 30 pushes the buffer plate 27; a guide sleeve 31 is provided on the buffer plate 27, and the guide sleeve 31 is slidably inserted into... A punching spring 32 is provided between the buffer plate 27 and the punching push plate 28 in the punching mounting hole 26. A punching head 33 is provided on the punching push plate 28. The punching head 33 passes through the buffer plate 27 and is inserted into the guide sleeve 31. The punching push plate 28 can press the punching head 33 into the mounting groove 25 or pull the punching head 33 back from the mounting groove 25 into the guide sleeve 31. A punching pad 34 is provided at the bottom of the mounting groove 25 on the punching base 24. A punching blanking hole 35 is provided in the punching pad 34. A punching cylinder 36 is provided on the mold body 20 to press the punching push plate 28.

[0045] The punching section 21 is used to process the through holes on the side of the angle iron 3. It alternately extends into the mounting groove 25 and moves and feeds within the mounting groove 25. When the angle iron 3 reaches the designated position and needs to be punched, the punching cylinder 36 presses against the punching push plate 28, driving the punching push plate 28 to move towards the punching base 24. The punching push plate 28 presses against the punching spring 32, and the punching spring 32 drives the buffer plate 27 to move towards the punching base 24. Because the buffer plate 27 is equipped with guides... The guide sleeve 31 extends out of the punch mounting hole 26 and presses the angle iron 3 in the mounting groove 25, thus fixing the angle iron 3. At the same time, the punching push plate 28 continues to move towards the punching base 24. Since the punching push plate 28 is equipped with a punching head 33, the punching head 33 will extend out of the guide sleeve 31 to punch the angle iron 3. The punching head 33 will push the punched material down into the punching discharge hole 35 to discharge the waste material, thus completing the punching operation. Then, the punching cylinder 36 moves in the opposite direction, the piston rod retracts, and under the restoration and reset of the buffer spring 30 and the punching spring 32, the buffer plate 27 and the punching push plate 28 both leave the punching base 24, and the guide sleeve 31 leaves the surface of the angle iron 3. The punch 33 retracts into the guide sleeve 31 and the angle iron 3, thus completing the process of the guide sleeve 31 and the punch 33 separating from the angle iron 3. The corresponding through hole on the angle iron 3 is then processed, and one punching cycle ends.

[0046] The feeding mechanism 4 includes a conveyor chain 37 and a lifting mechanism. The lifting mechanism is located at the tail of the conveyor chain 37. A V-shaped frame 38 for placing angle iron 3 is installed on the conveyor chain 37. The lifting mechanism includes a vertically arranged lifting cylinder 39 and a lifting frame 40 arranged on the piston rod of the lifting cylinder 39.

[0047] The conveyor chain 37 of the feeding mechanism 4 is used to transport the angle irons 3 one by one to the feeding mechanism 2. The angle irons 3 are arranged one by one on the V-shaped frame 38 and can be transported forward smoothly. The lifting mechanism set at the end of the conveyor chain 37 can lift the angle irons 3 at the end of the conveyor chain 37 upward, so that the feeding jaws 10 of the feeding mechanism 2 can easily grab the angle irons 3.

[0048] There are two feeding mechanisms 2, one located at the inlet of the processing mechanism 5 and the other located at the outlet of the processing mechanism 5. The feeding mechanism 2 can either clamp the tail of the angle iron 3 and push it into the processing mechanism 5 using a "feeding" method, or it can clamp the head of the angle iron 3 and pull it to allow the processing mechanism 5 to process it continuously. The feeding mechanism 2 can adopt different clamping methods according to the processing needs of the angle iron 3 during cutting, receiving, and processing.

[0049] A continuous production method for automatic feeding of angle iron 3, utilizing the aforementioned continuous production line for automatic feeding of angle iron 3.

[0050] S1: The feed mechanism 2 at the entrance of the processing mechanism 5 clamps the angle iron 3, cuts off and trims the first end of the angle iron 3, and sends it into the stamping die for chamfering and punching.

[0051] S2: The feed mechanism 2 at the exit of the processing mechanism 5 clamps the angle iron 3 and trims the end of the angle iron 3.

[0052] S3: The feed mechanism 2 at the entrance of the processing mechanism 5 clamps the new angle iron 3, cuts and trims the first end of the angle iron 3, and splices it with the angle iron 3 clamped by the feed mechanism 2 at the exit of the processing mechanism 5 at the joint.

[0053] S4: The welding gun 17 of the splicing part welds the two sections of angle iron 3 together;

[0054] S5: The stamping die continuously produces the assembled angle iron 3.

[0055] Specifically, when a new angle iron 3 is fed in from the feeding mechanism 4, the feed gripper 10 of the feed mechanism 2 at the inlet of the processing mechanism 5 holds the angle iron 3 sent by the lifting mechanism, and then the angle iron 3 is sent into the cutting part for the cutting operation of the head end. The purpose of doing this is to clean the head end of the angle iron 3, and at the same time to determine the reference of the length direction of the angle iron 3 for subsequent processing.

[0056] After the first end is cut off, the angle iron 3 is sent to the processing mechanism 5 for processing. The processing can be carried out in different forms such as punching and chamfering, so that the angle iron 3 can be continuously processed and produced.

[0057] When a piece of angle iron 3 has completed most of its processing, and the production line detects that the length of the remaining part cannot meet the requirements for continuous production, the feed gripper 10 in the feed mechanism 2 located at the exit of the processing mechanism 5 will clamp the angle iron 3 located at the exit of the processing mechanism 5 and gradually pull the angle iron 3 forward. At this time, the feed gripper 10 located at the inlet of the processing mechanism 5 will release its grip on the angle iron 3. Under the grip of the feed gripper 10 at the exit of the processing mechanism 5, the end of the angle iron 3 will be cut off in the cutting part. The purpose of doing this is to clean the end of the angle iron 3, to facilitate splicing and welding with the rear angle iron 3, and also to determine the reference for the length direction of the angle iron 3 processing.

[0058] Meanwhile, the feed gripper 10 located at the inlet of the processing mechanism 5 will grab a new angle iron 3 and send it into the cutting section 23 to cut off the head end. At the splicing section, the head end of the new angle iron 3 will be spliced ​​with the end of the angle iron 3 in the previous processing mechanism 5. The welding torch 17 will complete the welding work on the welding part under the drive of the welding drive mechanism. After the welding is completed, the welding torch 17 can be withdrawn. The angle iron 3 that has been welded and spliced ​​can be continuously produced in the processing mechanism 5, which avoids the waste of each angle iron 3 tail material and improves the material utilization rate.

[0059] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A continuous production line for automatic feeding of angle iron, characterized in that: include Equipment body (1); The feed mechanism (2) is installed on the main body (1) of the equipment and drives the angle iron (3) to move forward to meet the processing feed requirements; The feeding mechanism (4) is set on the equipment body (1) and is used to provide the angle iron (3) to be processed to the feeding mechanism (2). The processing mechanism (5) is located on the front side of the equipment body (1) and receives the angle iron (3) transmitted from the feeding mechanism (2) for punching, cutting and splicing processing of the angle iron (3).

2. The continuous production line for automatic feeding of angle iron as described in claim 1, characterized in that: The feeding mechanism (2) includes a feeding guide rail (6) horizontally fixed on the equipment body (1), a feeding slider (7) slidably mounted on the feeding guide rail (6), a feeding rack (8) parallel to the feeding guide rail (6) and fixedly mounted on the equipment body (1), a feeding motor (9) fixedly mounted on the feeding slider (7), and a feeding gripper (10); the output end of the feeding motor (9) is equipped with a feeding gear (11), which meshes with the feeding rack (8); the feeding gripper (10) holds the angle iron (3) transmitted by the feeding mechanism (4).

3. The continuous production line for automatic angle iron feeding as described in claim 2, characterized in that: The processing mechanism (5) includes a cutting section (23), a connecting section and a stamping die arranged sequentially along the feed direction of the angle iron (3). The cutting section (23) includes a cutting seat (12), a cutting blade arranged in the cutting seat (12) and a cutting cylinder (13) arranged on the cutting seat (12). The cutting blade is fixedly arranged on the piston rod of the cutting cylinder (13). The bottom of the cutting seat (12) is provided with a limiting groove (14) through which the angle iron (3) passes.

4. The continuous production line for automatic feeding of angle iron as described in claim 3, characterized in that: The connecting part includes a welding drive mechanism and a welding torch (17) mounted on the welding drive mechanism. The welding drive mechanism includes a vertical module (15) and a horizontal module (16) mounted on the vertical module (15). The welding torch (17) is mounted on the horizontal module (16). The connecting part also includes a clamping seat (18) for clamping the angle iron (3) and a clamping cylinder (19).

5. A continuous production line for automatic angle iron unloading as described in claim 4, characterized in that: The stamping die includes: The mold body (20) has the angle iron (3) to be processed extending into it; The punching part (21) is provided on the mold body (20). There are two punching parts (21), which punch the two sides of the angle iron (3) respectively. Chamfered portions (22) are provided on the mold body (20). There are two chamfered portions (22), which chamfer the two ends of the two sides of the angle iron (3) respectively. The cutting section (23) is provided on the mold body (20) to cut the angle iron (3).

6. A continuous production line for automatic feeding of angle iron as described in claim 5, characterized in that: The punching section (21) includes a punching base (24), on which an L-shaped mounting groove (25) for the angle iron (3) to pass through is provided, and a punching mounting hole (26) communicating with the mounting groove (25) is provided on the punching base (24); a buffer plate (27) and a punching push plate (28) are provided on the punching base (24), and the buffer plate (27) is located between the punching push plate (28) and the punching base (24); a spring mounting hole (29) is provided on the punching base (24), and a buffer spring (30) is installed in the spring mounting hole (29), and the buffer spring (30) pushes the buffer plate (27); a guide sleeve (31) is provided on the buffer plate (27), and the guide sleeve (31) is slidably inserted into the buffer plate (27). In the punching mounting hole (26); a punching spring (32) is provided between the buffer plate (27) and the punching push plate (28); a punch (33) is provided on the punching push plate (28); the punch (33) passes through the buffer plate (27) and is inserted into the guide sleeve (31); the punching push plate (28) can press the punch (33) into the mounting groove (25) or pull the punch (33) back from the mounting groove (25) into the guide sleeve (31); on the punching base (24), a punching pad (34) is provided at the bottom of the mounting groove (25); a punching blanking hole (35) is provided in the punching pad (34); a punching cylinder (36) that presses the punching push plate (28) is provided on the mold body (20).

7. A continuous production line for automatic angle iron unloading as described in claim 6, characterized in that: The feeding mechanism (4) includes a conveyor chain (37) and a lifting mechanism. The lifting mechanism is located at the tail of the conveyor chain (37). A V-shaped frame (38) for placing angle iron (3) is installed on the conveyor chain (37). The lifting mechanism includes a vertically arranged lifting cylinder (39) and a lifting frame (40) arranged on the piston rod of the lifting cylinder (39).

8. A continuous production line for automatic feeding of angle iron as described in claim 7, characterized in that: There are two feeding mechanisms (2), one located at the inlet of the processing mechanism (5) and the other located at the outlet of the processing mechanism (5).

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