A circular saw blade continuous stamping forming device

Abstract

The present invention discloses a circular saw blade continuous stamping and forming device, including an upper die seat, a punch, an upper die fixing plate, a die, and a lower die seat, which are sequentially installed from top to bottom. A blanking trough is provided in the middle of the die and the lower die seat, and guide plates are provided on both sides of the top of the die. A lifting structure is installed between the upper die fixing plate, the die and the lower die seat and close to the guide plate, and the lifting structure is located on one side of the blanking trough. The circular saw blade continuous stamping and forming device described in the present invention avoids the situation where the conventional limiting device floats laterally and engages with the incision that is not a limiting device, avoids the saw blade from being retained in the blanking trough, avoids the circular saw blade from tilting and falling to cause the saw teeth on the edge of the circular saw blade to contact the equipment, and does not cause the saw teeth of the circular saw blade to deform or bend. The lifting structure drives the material shifting structure, the support structure and the control structure to operate in a unified manner, and enables the material shifting structure, the support structure and the control structure to cooperate with each other.

Description

Technical Field

[0001] The invention relates to the field of continuous stamping dies, and in particular to a circular saw blade continuous stamping forming device. Background Art

[0002] Continuous stamping is a metal processing method that may include stamping, drawing, bending and other methods of metal raw materials, combined with an automatic feeding system. The feeding system pushes the metal strip through all the stations of the continuous die. Continuous die refers to a cold stamping die that uses a raw material to complete multiple stamping processes at different stations on a die at the same time. The strip moves a fixed distance, once per stroke, until the finished product. When processing circular saw blades, continuous stamping dies are used to punch the sheet material. The center hole and outer circle of the circular saw blade can be punched in sequence, so that the shape of the circular saw blade can be obtained, and then it can be heat treated and other tools;

[0003] However, the existing continuous stamping dies for circular saw blades have certain drawbacks. After the circular saw blade is punched, there will be a circle of saw teeth on the edge of the circular saw blade. If the saw teeth are dropped directly, they will be easily affected by the blanking chute, causing the saw teeth to collide with the equipment. Especially when the saw teeth fall vertically, the saw teeth will easily bend or deform, which not only affects the size and accuracy of the circular saw blade, but also affects the subsequent processing. In addition, when blanking, due to the coordination between the die and the punch, burrs or burrs are likely to appear on the edge of the sheet material. At this time, the sheet material is easily stuck in the blanking chute, so that the sheet material in the blanking chute can only be pushed out by other sheets during the next punching before it can be blanked. Summary of the invention

[0004] The main purpose of the present invention is to provide a circular saw blade continuous stamping forming device, which can effectively solve the technical problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A circular saw blade continuous stamping forming device, comprising an upper die seat, a punch, an upper die fixing plate, a die, and a lower die seat, which are sequentially installed from top to bottom, a blanking trough is provided between the die and the lower die seat, guide plates are provided on both sides of the top of the die, a lifting structure is installed between the upper die fixing plate, the die and the lower die seat and close to the guide plate, and the lifting structure is located on one side of the blanking trough;

[0007] The lifting structure includes a reserved groove and a connecting rod. The reserved groove is opened inside the die and is located on one side of the blanking groove. The connecting rod is located inside the reserved groove. A limit block is set at the top end of the connecting rod, and a matching block is welded on the lower surface of the upper die fixing plate at a position corresponding to the limit block. A fixing groove is opened at the top end of the lower die base and at the bottom end of the connecting rod. A first spring is set inside the fixing groove, and the first spring is in contact with the bottom end of the connecting rod.

[0008] As a preferred technical solution of the present invention, a matching groove is provided at the top of the reserved groove, and the shape of the matching groove matches both the limiting block and the matching block, and the depth of the matching groove is greater than the thickness of the limiting block.

[0009] As a preferred technical solution of the present invention, a material shifting structure is arranged inside the die and between the blanking groove and the reserved groove, the material shifting structure includes a placement cavity, the placement cavity is opened between the blanking groove and the reserved groove, and the blanking groove, the placement cavity and the reserved groove are communicated with each other, a rotating pin, a connecting rod and a bending rod are arranged inside the placement cavity, the rotating pin is arranged inside the placement cavity, and the rotating pin is rotatably connected to the connecting rod, and the connecting rod and the bending rod are integrated, a shifting rod is arranged in the middle of the connecting rod, and one end of the shifting rod is connected to the bending rod, and a second spring is sleeved inside the other end of the shifting rod.

[0010] As a preferred technical solution of the present invention, one end of the second spring is located inside the lever, and the other end of the second spring is in contact with the reserved groove, and a chamfer is provided at the connection between the placement cavity and the reserved groove.

[0011] As a preferred technical solution of the present invention, a support structure is arranged inside the die and at the lower end of the blanking trough, and the support structure includes a fixed disk, which is arranged at the lower end of the blanking trough through a thread, and a limiting ring is arranged on the surface of the fixed disk, and a rotating ring is installed between the fixed disk and the three limiting rings, and the rotating ring is rotatably connected to the fixed disk, and a plurality of support rods are arranged on the surface of the fixed disk, and a third spring is connected between the rotating ring and each support rod.

[0012] As a preferred technical solution of the present invention, a pin is provided at one end of the support rod, and the support rod is rotatably connected to the pin, a limiting pin is welded on the surface of the fixed plate in the middle of the support rod, and the other end of the support rod is connected to the third spring.

[0013] As a preferred technical solution of the present invention, a control structure is arranged between the lower end of the lifting structure and the supporting structure, the control structure includes a sleeve, the sleeve is arranged at the lower end of the connecting rod, and the lower end of the connecting rod is provided with a transmission thread, the lower end of the connecting rod is connected to the sleeve through the transmission thread, the bottom end of the reserved groove is threadedly connected with a retaining ring, and the retaining ring is located below the sleeve, a guide ring is welded to the edge of the fixed plate, a fixing buckle is welded to the side wall of the rotating ring, a connecting rope is wrapped around the outer cylindrical surface of the sleeve, and the connecting rope passes through the interior of the guide ring and is connected to the fixing buckle.

[0014] As a preferred technical solution of the present invention, the end of the connecting rope is tied to the rotating ring, and the connecting rope is tangent to the edge of the rotating ring.

[0015] As a preferred technical solution of the present invention, guide pillars and guide sleeves are provided at the four corners of the upper die base and the upper die fixing plate, and the four corners of the punch are slidably connected to the guide pillars, a die handle is provided in the middle of the punch, and the die handle passes through the interior of the upper die base, the middle of the bottom end of the punch is aligned with the blanking groove of the die, and the die is fixed to the lower die base by bolts.

[0016] The beneficial effects of the present invention are as follows:

[0017] A lifting structure is provided, and the first spring pushes the connecting rod to lift so that the limit block can float, so that the plate material can be aligned for limiting when the circular saw blade is pushed, and the lifting limit block can only be limited when the cut of the plate material matches the matching block and the limit block, thereby avoiding the situation that the conventional limit device floats horizontally and engages with the cut that is not limited;

[0018] A material-push structure is provided. When the mold is closed, the connecting rod is pressed down. At this time, the connecting rod can rotate around the rotating pin. When it rotates in one direction, it can push the saw blade that has just been punched out, so that the saw blade can fall from the inside of the blanking trough to avoid the saw blade being trapped in the blanking trough; when the connecting rod is raised, the connecting rod rotates in the opposite direction so that the connecting rod is stored in the placement cavity, which will not affect the normal punching of the mold during punching;

[0019] By setting a lever, when the lever is moved, it is ensured that the connecting rod can be in contact with the bent rod when the connecting rod is lifted or lowered, so as to ensure the normal operation of the material-lifting structure, and the lever moves in the reserved groove, which can limit the lifting of the connecting rod;

[0020] A support structure is provided. Under normal conditions, the support rod is exposed from the material dropping groove. The circular saw blade moved by the material dropping structure falls horizontally between the support rods. The circular saw blade falls more smoothly in the later stage, avoiding the circular saw blade from tilting and falling, causing the saw teeth on the edge of the circular saw blade to contact with the equipment, and preventing the saw teeth of the circular saw blade from being deformed or bent.

[0021] A control structure is provided, and when the connecting rod descends, the connecting rope pulls the rotating ring to rotate, so that the support rod can be stored, so that the circular saw blade can be dropped smoothly; when the connecting rod rises, the connecting rope is in a relaxed state, so that the support rod can be extended to support the circular saw blade;

[0022] The lifting structure drives the material shifting structure, the supporting structure and the control structure to operate in a unified manner, and enables the material shifting structure, the supporting structure and the control structure to cooperate with each other, so that the punched circular saw blade is shifted and then falls smoothly, avoiding the situation that the circular saw blade cannot drop materials normally or the saw teeth are bent after dropping materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a circular saw blade continuous stamping and forming device of the present invention;

[0024] Figure 2 It is a schematic diagram of the structural disassembly of a circular saw blade continuous stamping and forming device of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of a circular saw blade continuous stamping and forming device of the present invention;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0028] Figure 6 It is a schematic diagram of a supporting structure of a circular saw blade continuous stamping and forming device of the present invention;

[0029] Figure 7 It is a schematic diagram of the disassembly of the support structure of a circular saw blade continuous stamping and forming device of the present invention;

[0030] Figure 8 The figure is a schematic diagram of the control structure of a circular saw blade continuous stamping and forming device of the present invention.

[0031] In the figure: 1. upper die seat; 2. punch; 3. upper die fixing plate; 4. die; 5. lower die seat; 6. material guide plate; 7. lifting structure; 8. blanking chute; 9. material shifting structure; 10. supporting structure; 11. control structure; 701. matching block; 702. reserved groove; 703. first spring; 704. connecting rod; 705. limiting block; 706. fixing groove; 901. placing cavity; 902. rotating pin; 903. connecting rod; 904. bending rod; 905. shifting rod; 906. second spring; 1001. fixing plate; 1002. limiting ring; 1003. supporting rod; 1004. third spring; 1005. rotating ring; 1101. sleeve; 1102. transmission thread; 1103. retaining ring; 1104. guide ring; 1105. connecting rope; 1106. fixing buckle. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figure 1-8 As shown, a circular saw blade continuous stamping forming device comprises an upper die base 1, a punch 2, an upper die fixing plate 3, a die 4, and a lower die base 5 which are sequentially installed from top to bottom, guide pillars and guide sleeves are provided at the four corners of the upper die base 1 and the upper die fixing plate 3, and the four corners of the punch 2 are slidably connected with the guide pillars, a die handle is provided in the middle of the punch 2, and the die handle runs through the interior of the upper die base 1, the middle of the bottom end of the punch 2 is aligned with the blanking groove 8 of the die 4, the die 4 and the lower die base 5 are fixed by bolts, the upper die base 1, the punch 2, the upper die fixing plate 3, the die 4, and the lower die base 5 are assembled, the die handle of the punch 2 is connected to the press, so that the press can close and open the mold when lifting and lowering, and then the protruding part of the lower surface of the punch 2 is closed or opened with the die 4, and during this period, the punch 2 is lifted and lowered along the guide pillars and guide sleeves to ensure that the punch 2 and the die 4 are accurately aligned, and the die 4 and A blanking groove 8 is provided in the middle of the lower die seat 5. Since there are two blanking grooves 8 of different sizes, during blanking, the small blanking groove 8 blanks the rotating shaft part of the circular saw blade, and the large blanking groove 8 blanks out the sawtooth shape or the outer disc shape of the circular saw blade. Guide plates 6 are provided on both sides of the top of the concave die 4. During operation, the sheet material is transported along the guide plates 6 under the pull of the traction machine to avoid the sheet material from being offset. A lifting structure 7 is installed between the upper die fixing plate 3, the concave die 4 and the lower die seat 5 and close to the guide plates 6. The lifting structure 7 is located on one side of the blanking groove 8. The lifting structure 7 drives the material shifting structure 9, the supporting structure 10 and the control structure 11 to operate in a unified manner, and the material shifting structure 9, the supporting structure 10 and the control structure 11 cooperate with each other to shift the blanked circular saw blade and then drop it smoothly, thereby avoiding the situation that the circular saw blade cannot blank normally or the saw teeth are bent after blanking.

[0034] The lifting structure 7 includes a reserved groove 702 and a connecting rod 704. The reserved groove 702 is opened inside the concave die 4 and is located on one side of the blanking trough 8. The connecting rod 704 is located inside the reserved groove 702. The connecting rod 704 is lifted and lowered along the inside of the reserved groove 702. A limit block 705 is arranged on the top of the connecting rod 704. A matching block 701 is welded on the lower surface of the upper die fixing plate 3 and at a position corresponding to the limit block 705. Since the matching block 701 and the limit block 705 have the same cross-sectional shape and corresponding positions, when the upper die fixing plate 3 is lifted and lowered along with the punch 2, the matching block 701 of the upper die fixing plate 3 contacts the limit block 705, and then the matching block 701 pushes the limit block 705 to the reserved groove 70 2, does not affect the matching block 701 and the limit block 705 to limit the sheet material, a fixing groove 706 is provided at the top of the lower die seat 5 and at the bottom end of the connecting rod 704, a first spring 703 is provided inside the fixing groove 706, and the first spring 703 is in contact with the bottom end of the connecting rod 704, when the connecting rod 704 descends, the first spring 703 is compressed in the fixing groove 706, when the mold is opened, the punch 2 and the upper mold fixing plate 3 rise together, at this time, under the action of the elastic force of the first spring 703 in the fixing groove 706, the connecting rod 704 is lifted along the inside of the reserved groove 702, so that the limit block 705 of the connecting rod 704 is lifted, so that the limit groove of the sheet material can be limited by the floating limit block 705.

[0035] In this embodiment, a matching groove is provided at the top of the reserved groove 702, and the shape of the matching groove matches both the limit block 705 and the matching block 701, and the depth of the matching groove is greater than the thickness of the limit block 705. When the matching block 701 and the limit block 705 match, the limit block 705 can be pushed by the matching block 701 to clamp the sheet with the notch at the matching block 701 and the limit block 705, thereby avoiding relative position during punching and improving the accuracy of the punched sheet. The first spring 703 of the lifting structure 7 pushes the connecting rod 704 to rise and fall so that the limit block 705 can float, so that it can be aligned for limiting when pushing the sheet to make a circular saw blade, and the lifting limit block 705 allows only the incision of the sheet to match the matching block 701 and the limit block 705 to be limited, thereby avoiding the situation where the conventional limiting device floats horizontally and fits with the incision that is not limited.

[0036] In this embodiment, a material shifting structure 9 is arranged inside the concave die 4 and between the blanking groove 8 and the reserved groove 702. The material shifting structure 9 includes a placement cavity 901. The placement cavity 901 is opened between the blanking groove 8 and the reserved groove 702, and the blanking groove 8, the placement cavity 901 are connected with the reserved groove 702. When the blanking groove 8, the placement cavity 901 and the reserved groove 702 are connected, it is ensured that the connecting rod 903 and the bent rod 904 have sufficient rotation space. A rotating pin 902, a connecting rod 903 and a bent rod 904 are arranged inside the placement cavity 901. The rotating pin 902 is mounted inside the placement cavity 901, and the rotating pin 902 is rotatably connected to the connecting rod 903. One end of the connecting rod 903 close to the blanking groove 8 is rotated to the highest position. At this time, the connecting rod 903 is still located inside the placement cavity 901. When the rod 903 rotates to the horizontal position, the connecting rod 903 exposes the end of the connecting rod 903 from the placement cavity 901. The connecting rod 903 and the bent rod 904 are integrated. A lever 905 is provided in the middle of the connecting rod 704, and one end of the lever 905 is connected to the bent rod 904, and a second spring 906 is sleeved inside the other end of the lever 905. The lever 905 will contact the bent rod 904 during lifting, thereby driving the bent rod 904 to deflect, and the lever 905 is pushed to contact the bent rod 904 through the second spring 906. By providing the lever 905, when the lever 905 is moved, it is ensured that the connecting rod 704 can contact the bent rod 904 during lifting, thereby ensuring the normal operation of the material diverting structure 9, and the lever 905 moves in the reserved groove 702, which can limit the lifting and lowering of the connecting rod 704.

[0037] When the locking cam 905 is in contact with the locking cam 906, the locking cam 906 is in contact with the locking cam 906. When the locking cam 905 is in contact with the locking cam 906, the locking cam 906 is in contact with the locking cam 906.

[0038] In this embodiment, a support structure 10 is provided inside the die 4 and at the lower end of the blanking trough 8. The support structure 10 includes a fixed disk 1001, and the fixed disk 1001 is arranged at the lower end of the blanking trough 8 through a thread. By screwing the fixed disk 1001 on the lower end of the blanking trough 8 and ensuring that the inner diameter of the fixed disk 1001 is larger than the inner diameter of the blanking trough 8, it is ensured that the blanking can fall from the fixed disk 1001. A limiting ring 1002 is provided on the surface of the fixed disk 1001, and a rotating ring 1005 is installed between the fixed disk 1001 and the limiting ring 1002, and the rotating ring 1005 is rotatably connected to the fixed disk 1001. The axes of the fixed disk 1001, the limiting ring 1002 and the rotating ring 1005 are the same, and the surface of the fixed disk 1001 is provided with a A plurality of support rods 1003 are arranged to ensure that when the rotating ring 1005 rotates, the support rods 1003 will not be affected when they swing accordingly, and a third spring 1004 is connected between the rotating ring 1005 and each support rod 1003. When the rotating ring 1005 rotates, the third spring 1004 will be tightened. At this time, the rotating ring 1005 will pull the fixed plate 1001 along the direction of the third spring 1004. Under normal circumstances, the support rods 1003 are exposed from the blanking groove 8, and the circular saw blade moved by the material-moving structure 9 falls horizontally between the support rods 1003. The circular saw blade falls more smoothly in the later stage, avoiding the circular saw blade from tilting and falling, causing the saw teeth on the edge of the circular saw blade to contact with the equipment, and causing the saw teeth of the circular saw blade to be deformed and bent.

[0039] In this embodiment, a pin is provided at one end of the support rod 1003, and the support rod 1003 is rotatably connected to the pin. A limiting pin is welded in the middle of the support rod 1003 on the surface of the fixed disk 1001, and the other end of the support rod 1003 is connected to the third spring 1004. When the third spring 1004 is in a pulled state, the support rod 1003 is deflected, so that the fallen material plate can fall from the support rod 1003 again. When the third spring 1004 is in a relaxed state, it will contact the limit pin against the support rod 1003, so as to support the fallen circular saw blade.

[0040] In this embodiment, a control structure 11 is provided between the lower end of the lifting structure 7 and the supporting structure 10, and the control structure 11 includes a sleeve 1101, and the sleeve 1101 is provided at the lower end of the connecting rod 704, and the lower end of the connecting rod 704 is provided with a transmission thread 1102, and the transmission thread 1102 is similar to the structure of a hand-pushed flying disc of a children's toy, as long as the hand-pushed flying disc and the threaded rod move relative to each other, the flying disc can rotate, and the lower end of the connecting rod 704 is connected to the sleeve 1101 through the transmission thread 1102, at this time, the rotating sleeve 1101 can rotate a certain number of circles relative to the connecting rod 704, and the bottom end of the reserved groove 702 is threadedly connected with a retaining ring 1103, and the retaining ring 1103 is located below the sleeve 1101, and the retaining ring 1103 is used to prevent the sleeve 1101 from floating up and down, so as to ensure that the sleeve 1101 and the connecting rod 704 are in a stable state. The connecting rod 704 rotates between them, a guide ring 1104 is welded on the edge of the fixed disk 1001, a fixing buckle 1106 is welded on the side wall of the rotating ring 1005, and a connecting rope 1105 is wrapped around the outer cylindrical surface of the sleeve 1101, and the connecting rope 1105 passes through the interior of the guide ring 1104 and is connected to the fixing buckle 1106. The connecting rope 1105 can be tightened by rotating the sleeve 1101, so that the end of the connecting rope 1105 can drive the rotating ring 1005 to rotate, so that the rotating ring 1005 and the fixed disk 1001 move relative to each other. When a slack state occurs between the sleeve 1101 and the connecting rope 1105, the fixed disk 1001 and the rotating ring 1005 are restored to their original state under the action of the third spring 1004 between the rotating ring 1005 and the fixed disk 1001.

[0041] In this embodiment, the end of the connecting rope 1105 is tied to the rotating ring 1005, and the connecting rope 1105 is tangent to the edge of the rotating ring 1005. The rotating ring 1005 rotates at a certain angle, and the guide ring 1104 can prevent the connecting rope 1105 from being stuck or knotted with the fixed plate 1001 and the rotating ring 1005. When the connecting rod 704 descends, the connecting rope 1105 pulls the rotating ring 1005 to rotate, so that the support rod 1003 can be stored, so that the circular saw blade can be dropped smoothly; when the connecting rod 704 rises, the connecting rope 1105 is in a relaxed state, so that the support rod 1003 can be extended to support the circular saw blade.

[0042] It should be noted that the present invention is a continuous stamping and forming device for circular saw blades. Before use, a sheet material for making circular saw blades is prepared, and then the sheet material is passed through between the upper die fixing plate 3 and the concave die 4, and one end of the sheet material is pulled by a pulling mechanism so that the sheet material can continuously enter the interior of the mold. Then, when the mold is closed, the punch 2 and the upper die fixing plate 3 are lowered by a press machine. At this time, the edge of the sheet material is punched out of the limiting notch through a predetermined block on the lower surface of the upper die fixing plate 3, and a hole corresponding to the rotating shaft of the cutting machine is punched out through the lower surface of the punch 2. When the mold is opened, the small hole that has just been punched out moves to At the larger blanking groove 8, the limit block 705 that can be lifted and lowered is buckled with the limit groove, so that the sheet material can be advanced to a certain length. When the mold is closed again, the punch 2 and the upper mold fixing plate 3 move downward together, and the matching block 701 presses the limit block 705. Then, at this time, the lever 905 of the lifting structure 7 drives the bending rod 904 to swing, so that the connecting rod 903 is retracted. At the same time, the transmission thread 1102 of the connecting rod 704 cooperates with the sleeve 1101, so that the connecting rope 1105 pulls the rotating ring 1005 to rotate in the fixed disk 1001, thereby the third rotating ring 1005 The spring 1004 pulls the support rod 1003 to swing. At this time, the previously fallen sheet material will fall from the support rod 1003, and the sheet material will not fall tilted. When the mold is opened, the transmission thread 1102 of the connecting rod 704 rotates in the opposite direction to the sleeve 1101, so that the connecting rope 1105 is in a relaxed state. At this time, under the action of the third spring 1004, the rotating ring 1005 and the support rod 1003 are close to each other, so that the support rod 1003 is supported in the blanking trough 8. At the same time, when the connecting rod 704 rises, the lever 905 will rotate the bending rod 904 and the connecting rod 903, so that the sheet material just punched out will be The sheet material is moved to avoid being stuck in the blanking groove 8, ensuring that the sheet material falls smoothly from the blanking groove 8, and then when the punch 2 and the upper mold fixing plate 3 continue to be raised, the matching block 701 is separated from the limit block 705. Since the edge of the limit block 705 is chamfered, it is convenient for the sheet material to continue to be pulled by the traction machine when the matching block 701 and the limit block 705 are just separated. When encountering the next limit groove, the limit block 705 is inserted into the limit groove under the action of the first spring 703. At this time, the next stamping can be carried out. This reciprocating process can be used to realize the punching and blanking processes of the circular saw blade through the mold.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A circular saw blade continuous stamping forming device, characterized in that: The invention comprises an upper die base (1), a punch (2), an upper die fixing plate (3), a die (4), and a lower die base (5) which are sequentially installed from top to bottom. A blanking trough (8) is provided in the middle of the die (4) and the lower die base (5). Guide plates (6) are provided on both sides of the top of the die (4). A lifting structure (7) is installed between the upper die fixing plate (3), the die (4), and the lower die base (5) and close to the guide plates (6). The lifting structure (7) is located on one side of the blanking trough (8). The lifting structure (7) comprises a reserved groove (702) and a connecting rod (704), wherein the reserved groove (702) is provided inside the concave die (4) and the reserved groove (702) is located on one side of the blanking trough (8), the connecting rod (704) is located inside the reserved groove (702), a limiting block (705) is provided at the top end of the connecting rod (704), a matching block (701) is welded on the lower surface of the upper die fixing plate (3) and located at a position corresponding to the limiting block (705), a fixing groove (706) is provided at the top end of the lower die base (5) and located at the bottom end of the connecting rod (704), a first spring (703) is provided inside the fixing groove (706), and the first spring (703) is in contact with the bottom end of the connecting rod (704); A matching groove is provided at the top of the reserved groove (702), and the shape of the matching groove matches both the limiting block (705) and the matching block (701), and the depth of the matching groove is greater than the thickness of the limiting block (705); A material shifting structure (9) is provided inside the concave mold (4) and between the blanking groove (8) and the reserved groove (702). The material shifting structure (9) comprises a placement cavity (901). The placement cavity (901) is opened between the blanking groove (8) and the reserved groove (702). The blanking groove (8), the placement cavity (901) and the reserved groove (702) are connected. A rotating pin (902) and a connecting rod (902) are provided inside the placement cavity (901). 3) and a bent rod (904), the rotating pin (902) is mounted inside the placement cavity (901), and the rotating pin (902) is rotatably connected to the connecting rod (903), and the connecting rod (903) and the bent rod (904) are integrated, a shifting rod (905) is arranged in the middle of the connecting rod (704), and one end of the shifting rod (905) is connected to the bent rod (904), and a second spring (906) is sleeved inside the other end of the shifting rod (905); One end of the second spring (906) is located inside the lever (905), and the other end of the second spring (906) is in contact with the reserved groove (702), and a chamfer is provided at the connection between the placement cavity (901) and the reserved groove (702); A support structure (10) is provided inside the die (4) and at the lower end of the blanking trough (8), the support structure (10) comprising a fixed disk (1001), the fixed disk (1001) being arranged at the lower end of the blanking trough (8) by means of a thread, a limit ring (1002) being arranged on the surface of the fixed disk (1001), a rotating ring (1005) being installed between the fixed disk (1001) and the three limit rings (1002), and the rotating ring (1005) being rotatably connected to the fixed disk (1001), a plurality of support rods (1003) being provided on the surface of the fixed disk (1001), and a third spring (1004) being connected between the rotating ring (1005) and each support rod (1003); A pin is provided at one end of the support rod (1003), and the support rod (1003) is rotatably connected to the pin. A limiting pin is welded to the middle of the support rod (1003) on the surface of the fixed plate (1001), and the other end of the support rod (1003) is connected to the third spring (1004). A control structure (11) is provided between the lower end of the lifting structure (7) and the supporting structure (10), and the control structure (11) includes a sleeve (1101), and the sleeve (1101) is provided at the lower end of the connecting rod (704), and the lower end of the connecting rod (704) is provided with a transmission thread (1102), and the lower end of the connecting rod (704) is connected to the sleeve (1101) through the transmission thread (1102), and the bottom end thread of the reserved groove (702) is A retaining ring (1103) is connected, and the retaining ring (1103) is located below the sleeve (1101); a guide ring (1104) is welded to the edge of the fixed disk (1001); a fixing buckle (1106) is welded to the side wall of the rotating ring (1005); a connecting rope (1105) is wrapped around the outer cylindrical surface of the sleeve (1101), and the connecting rope (1105) passes through the interior of the guide ring (1104) and is connected to the fixing buckle (1106).

2. A circular saw blade continuous stamping and forming device according to claim 1, characterized in that: The end of the connecting rope (1105) is tied to the rotating ring (1005), and the connecting rope (1105) is tangent to the edge of the rotating ring (1005).

3. A circular saw blade continuous stamping and forming device according to claim 1, characterized in that: The four corners of the upper die base (1) and the upper die fixing plate (3) are provided with guide pillars and guide sleeves, and the four corners of the punch (2) are slidably connected to the guide pillars. A die handle is provided in the middle of the punch (2), and the die handle passes through the interior of the upper die base (1). The middle of the bottom end of the punch (2) is aligned with the blanking groove (8) of the die (4), and the die (4) is fixed to the lower die base (5) by bolts.

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